1 /* Broadcom NetXtreme-C/E network driver. 2 * 3 * Copyright (c) 2014-2016 Broadcom Corporation 4 * Copyright (c) 2016-2019 Broadcom Limited 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation. 9 */ 10 11 #include <linux/module.h> 12 13 #include <linux/stringify.h> 14 #include <linux/kernel.h> 15 #include <linux/timer.h> 16 #include <linux/errno.h> 17 #include <linux/ioport.h> 18 #include <linux/slab.h> 19 #include <linux/vmalloc.h> 20 #include <linux/interrupt.h> 21 #include <linux/pci.h> 22 #include <linux/netdevice.h> 23 #include <linux/etherdevice.h> 24 #include <linux/skbuff.h> 25 #include <linux/dma-mapping.h> 26 #include <linux/bitops.h> 27 #include <linux/io.h> 28 #include <linux/irq.h> 29 #include <linux/delay.h> 30 #include <asm/byteorder.h> 31 #include <asm/page.h> 32 #include <linux/time.h> 33 #include <linux/mii.h> 34 #include <linux/mdio.h> 35 #include <linux/if.h> 36 #include <linux/if_vlan.h> 37 #include <linux/if_bridge.h> 38 #include <linux/rtc.h> 39 #include <linux/bpf.h> 40 #include <net/gro.h> 41 #include <net/ip.h> 42 #include <net/tcp.h> 43 #include <net/udp.h> 44 #include <net/checksum.h> 45 #include <net/ip6_checksum.h> 46 #include <net/udp_tunnel.h> 47 #include <linux/workqueue.h> 48 #include <linux/prefetch.h> 49 #include <linux/cache.h> 50 #include <linux/log2.h> 51 #include <linux/aer.h> 52 #include <linux/bitmap.h> 53 #include <linux/cpu_rmap.h> 54 #include <linux/cpumask.h> 55 #include <net/pkt_cls.h> 56 #include <linux/hwmon.h> 57 #include <linux/hwmon-sysfs.h> 58 #include <net/page_pool.h> 59 #include <linux/align.h> 60 61 #include "bnxt_hsi.h" 62 #include "bnxt.h" 63 #include "bnxt_hwrm.h" 64 #include "bnxt_ulp.h" 65 #include "bnxt_sriov.h" 66 #include "bnxt_ethtool.h" 67 #include "bnxt_dcb.h" 68 #include "bnxt_xdp.h" 69 #include "bnxt_ptp.h" 70 #include "bnxt_vfr.h" 71 #include "bnxt_tc.h" 72 #include "bnxt_devlink.h" 73 #include "bnxt_debugfs.h" 74 75 #define BNXT_TX_TIMEOUT (5 * HZ) 76 #define BNXT_DEF_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_HW | \ 77 NETIF_MSG_TX_ERR) 78 79 MODULE_LICENSE("GPL"); 80 MODULE_DESCRIPTION("Broadcom BCM573xx network driver"); 81 82 #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN) 83 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD 84 #define BNXT_RX_COPY_THRESH 256 85 86 #define BNXT_TX_PUSH_THRESH 164 87 88 /* indexed by enum board_idx */ 89 static const struct { 90 char *name; 91 } board_info[] = { 92 [BCM57301] = { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" }, 93 [BCM57302] = { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" }, 94 [BCM57304] = { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 95 [BCM57417_NPAR] = { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" }, 96 [BCM58700] = { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" }, 97 [BCM57311] = { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" }, 98 [BCM57312] = { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" }, 99 [BCM57402] = { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" }, 100 [BCM57404] = { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" }, 101 [BCM57406] = { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" }, 102 [BCM57402_NPAR] = { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" }, 103 [BCM57407] = { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" }, 104 [BCM57412] = { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" }, 105 [BCM57414] = { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" }, 106 [BCM57416] = { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" }, 107 [BCM57417] = { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" }, 108 [BCM57412_NPAR] = { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" }, 109 [BCM57314] = { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 110 [BCM57417_SFP] = { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" }, 111 [BCM57416_SFP] = { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" }, 112 [BCM57404_NPAR] = { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" }, 113 [BCM57406_NPAR] = { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" }, 114 [BCM57407_SFP] = { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" }, 115 [BCM57407_NPAR] = { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" }, 116 [BCM57414_NPAR] = { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" }, 117 [BCM57416_NPAR] = { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" }, 118 [BCM57452] = { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" }, 119 [BCM57454] = { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 120 [BCM5745x_NPAR] = { "Broadcom BCM5745x NetXtreme-E Ethernet Partition" }, 121 [BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, 122 [BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, 123 [BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" }, 124 [BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" }, 125 [BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" }, 126 [BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" }, 127 [BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" }, 128 [BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 129 [BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 130 [NETXTREME_E_VF] = { "Broadcom NetXtreme-E Ethernet Virtual Function" }, 131 [NETXTREME_C_VF] = { "Broadcom NetXtreme-C Ethernet Virtual Function" }, 132 [NETXTREME_S_VF] = { "Broadcom NetXtreme-S Ethernet Virtual Function" }, 133 [NETXTREME_C_VF_HV] = { "Broadcom NetXtreme-C Virtual Function for Hyper-V" }, 134 [NETXTREME_E_VF_HV] = { "Broadcom NetXtreme-E Virtual Function for Hyper-V" }, 135 [NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" }, 136 [NETXTREME_E_P5_VF_HV] = { "Broadcom BCM5750X NetXtreme-E Virtual Function for Hyper-V" }, 137 }; 138 139 static const struct pci_device_id bnxt_pci_tbl[] = { 140 { PCI_VDEVICE(BROADCOM, 0x1604), .driver_data = BCM5745x_NPAR }, 141 { PCI_VDEVICE(BROADCOM, 0x1605), .driver_data = BCM5745x_NPAR }, 142 { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 }, 143 { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR }, 144 { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 }, 145 { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 }, 146 { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 }, 147 { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR }, 148 { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 }, 149 { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 }, 150 { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 }, 151 { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 }, 152 { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 }, 153 { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 }, 154 { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR }, 155 { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 }, 156 { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 }, 157 { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 }, 158 { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 }, 159 { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 }, 160 { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR }, 161 { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 }, 162 { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP }, 163 { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP }, 164 { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR }, 165 { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR }, 166 { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP }, 167 { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR }, 168 { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR }, 169 { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR }, 170 { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR }, 171 { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR }, 172 { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR }, 173 { PCI_VDEVICE(BROADCOM, 0x16f0), .driver_data = BCM58808 }, 174 { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 }, 175 { PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 }, 176 { PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 }, 177 { PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 }, 178 { PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57508_NPAR }, 179 { PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR }, 180 { PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57502_NPAR }, 181 { PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57508_NPAR }, 182 { PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR }, 183 { PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57502_NPAR }, 184 { PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 }, 185 { PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 }, 186 #ifdef CONFIG_BNXT_SRIOV 187 { PCI_VDEVICE(BROADCOM, 0x1606), .driver_data = NETXTREME_E_VF }, 188 { PCI_VDEVICE(BROADCOM, 0x1607), .driver_data = NETXTREME_E_VF_HV }, 189 { PCI_VDEVICE(BROADCOM, 0x1608), .driver_data = NETXTREME_E_VF_HV }, 190 { PCI_VDEVICE(BROADCOM, 0x1609), .driver_data = NETXTREME_E_VF }, 191 { PCI_VDEVICE(BROADCOM, 0x16bd), .driver_data = NETXTREME_E_VF_HV }, 192 { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF }, 193 { PCI_VDEVICE(BROADCOM, 0x16c2), .driver_data = NETXTREME_C_VF_HV }, 194 { PCI_VDEVICE(BROADCOM, 0x16c3), .driver_data = NETXTREME_C_VF_HV }, 195 { PCI_VDEVICE(BROADCOM, 0x16c4), .driver_data = NETXTREME_E_VF_HV }, 196 { PCI_VDEVICE(BROADCOM, 0x16c5), .driver_data = NETXTREME_E_VF_HV }, 197 { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF }, 198 { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF }, 199 { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF }, 200 { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF }, 201 { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF }, 202 { PCI_VDEVICE(BROADCOM, 0x16e6), .driver_data = NETXTREME_C_VF_HV }, 203 { PCI_VDEVICE(BROADCOM, 0x1806), .driver_data = NETXTREME_E_P5_VF }, 204 { PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF }, 205 { PCI_VDEVICE(BROADCOM, 0x1808), .driver_data = NETXTREME_E_P5_VF_HV }, 206 { PCI_VDEVICE(BROADCOM, 0x1809), .driver_data = NETXTREME_E_P5_VF_HV }, 207 { PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF }, 208 #endif 209 { 0 } 210 }; 211 212 MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl); 213 214 static const u16 bnxt_vf_req_snif[] = { 215 HWRM_FUNC_CFG, 216 HWRM_FUNC_VF_CFG, 217 HWRM_PORT_PHY_QCFG, 218 HWRM_CFA_L2_FILTER_ALLOC, 219 }; 220 221 static const u16 bnxt_async_events_arr[] = { 222 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, 223 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE, 224 ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD, 225 ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED, 226 ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE, 227 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, 228 ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE, 229 ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY, 230 ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY, 231 ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION, 232 ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE, 233 ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG, 234 ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST, 235 ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP, 236 ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT, 237 ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE, 238 }; 239 240 static struct workqueue_struct *bnxt_pf_wq; 241 242 static bool bnxt_vf_pciid(enum board_idx idx) 243 { 244 return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF || 245 idx == NETXTREME_S_VF || idx == NETXTREME_C_VF_HV || 246 idx == NETXTREME_E_VF_HV || idx == NETXTREME_E_P5_VF || 247 idx == NETXTREME_E_P5_VF_HV); 248 } 249 250 #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID) 251 #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS) 252 #define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS) 253 254 #define BNXT_CP_DB_IRQ_DIS(db) \ 255 writel(DB_CP_IRQ_DIS_FLAGS, db) 256 257 #define BNXT_DB_CQ(db, idx) \ 258 writel(DB_CP_FLAGS | RING_CMP(idx), (db)->doorbell) 259 260 #define BNXT_DB_NQ_P5(db, idx) \ 261 bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ | RING_CMP(idx), \ 262 (db)->doorbell) 263 264 #define BNXT_DB_CQ_ARM(db, idx) \ 265 writel(DB_CP_REARM_FLAGS | RING_CMP(idx), (db)->doorbell) 266 267 #define BNXT_DB_NQ_ARM_P5(db, idx) \ 268 bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ_ARM | RING_CMP(idx),\ 269 (db)->doorbell) 270 271 static void bnxt_db_nq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 272 { 273 if (bp->flags & BNXT_FLAG_CHIP_P5) 274 BNXT_DB_NQ_P5(db, idx); 275 else 276 BNXT_DB_CQ(db, idx); 277 } 278 279 static void bnxt_db_nq_arm(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 280 { 281 if (bp->flags & BNXT_FLAG_CHIP_P5) 282 BNXT_DB_NQ_ARM_P5(db, idx); 283 else 284 BNXT_DB_CQ_ARM(db, idx); 285 } 286 287 static void bnxt_db_cq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 288 { 289 if (bp->flags & BNXT_FLAG_CHIP_P5) 290 bnxt_writeq(bp, db->db_key64 | DBR_TYPE_CQ_ARMALL | 291 RING_CMP(idx), db->doorbell); 292 else 293 BNXT_DB_CQ(db, idx); 294 } 295 296 const u16 bnxt_lhint_arr[] = { 297 TX_BD_FLAGS_LHINT_512_AND_SMALLER, 298 TX_BD_FLAGS_LHINT_512_TO_1023, 299 TX_BD_FLAGS_LHINT_1024_TO_2047, 300 TX_BD_FLAGS_LHINT_1024_TO_2047, 301 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 302 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 303 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 304 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 305 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 306 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 307 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 308 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 309 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 310 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 311 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 312 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 313 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 314 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 315 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 316 }; 317 318 static u16 bnxt_xmit_get_cfa_action(struct sk_buff *skb) 319 { 320 struct metadata_dst *md_dst = skb_metadata_dst(skb); 321 322 if (!md_dst || md_dst->type != METADATA_HW_PORT_MUX) 323 return 0; 324 325 return md_dst->u.port_info.port_id; 326 } 327 328 static void bnxt_txr_db_kick(struct bnxt *bp, struct bnxt_tx_ring_info *txr, 329 u16 prod) 330 { 331 bnxt_db_write(bp, &txr->tx_db, prod); 332 txr->kick_pending = 0; 333 } 334 335 static bool bnxt_txr_netif_try_stop_queue(struct bnxt *bp, 336 struct bnxt_tx_ring_info *txr, 337 struct netdev_queue *txq) 338 { 339 netif_tx_stop_queue(txq); 340 341 /* netif_tx_stop_queue() must be done before checking 342 * tx index in bnxt_tx_avail() below, because in 343 * bnxt_tx_int(), we update tx index before checking for 344 * netif_tx_queue_stopped(). 345 */ 346 smp_mb(); 347 if (bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh) { 348 netif_tx_wake_queue(txq); 349 return false; 350 } 351 352 return true; 353 } 354 355 static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) 356 { 357 struct bnxt *bp = netdev_priv(dev); 358 struct tx_bd *txbd; 359 struct tx_bd_ext *txbd1; 360 struct netdev_queue *txq; 361 int i; 362 dma_addr_t mapping; 363 unsigned int length, pad = 0; 364 u32 len, free_size, vlan_tag_flags, cfa_action, flags; 365 u16 prod, last_frag; 366 struct pci_dev *pdev = bp->pdev; 367 struct bnxt_tx_ring_info *txr; 368 struct bnxt_sw_tx_bd *tx_buf; 369 __le32 lflags = 0; 370 371 i = skb_get_queue_mapping(skb); 372 if (unlikely(i >= bp->tx_nr_rings)) { 373 dev_kfree_skb_any(skb); 374 dev_core_stats_tx_dropped_inc(dev); 375 return NETDEV_TX_OK; 376 } 377 378 txq = netdev_get_tx_queue(dev, i); 379 txr = &bp->tx_ring[bp->tx_ring_map[i]]; 380 prod = txr->tx_prod; 381 382 free_size = bnxt_tx_avail(bp, txr); 383 if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { 384 /* We must have raced with NAPI cleanup */ 385 if (net_ratelimit() && txr->kick_pending) 386 netif_warn(bp, tx_err, dev, 387 "bnxt: ring busy w/ flush pending!\n"); 388 if (bnxt_txr_netif_try_stop_queue(bp, txr, txq)) 389 return NETDEV_TX_BUSY; 390 } 391 392 length = skb->len; 393 len = skb_headlen(skb); 394 last_frag = skb_shinfo(skb)->nr_frags; 395 396 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 397 398 txbd->tx_bd_opaque = prod; 399 400 tx_buf = &txr->tx_buf_ring[prod]; 401 tx_buf->skb = skb; 402 tx_buf->nr_frags = last_frag; 403 404 vlan_tag_flags = 0; 405 cfa_action = bnxt_xmit_get_cfa_action(skb); 406 if (skb_vlan_tag_present(skb)) { 407 vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN | 408 skb_vlan_tag_get(skb); 409 /* Currently supports 8021Q, 8021AD vlan offloads 410 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated 411 */ 412 if (skb->vlan_proto == htons(ETH_P_8021Q)) 413 vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT; 414 } 415 416 if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { 417 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 418 419 if (ptp && ptp->tx_tstamp_en && !skb_is_gso(skb) && 420 atomic_dec_if_positive(&ptp->tx_avail) >= 0) { 421 if (!bnxt_ptp_parse(skb, &ptp->tx_seqid, 422 &ptp->tx_hdr_off)) { 423 if (vlan_tag_flags) 424 ptp->tx_hdr_off += VLAN_HLEN; 425 lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP); 426 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; 427 } else { 428 atomic_inc(&bp->ptp_cfg->tx_avail); 429 } 430 } 431 } 432 433 if (unlikely(skb->no_fcs)) 434 lflags |= cpu_to_le32(TX_BD_FLAGS_NO_CRC); 435 436 if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh && 437 !lflags) { 438 struct tx_push_buffer *tx_push_buf = txr->tx_push; 439 struct tx_push_bd *tx_push = &tx_push_buf->push_bd; 440 struct tx_bd_ext *tx_push1 = &tx_push->txbd2; 441 void __iomem *db = txr->tx_db.doorbell; 442 void *pdata = tx_push_buf->data; 443 u64 *end; 444 int j, push_len; 445 446 /* Set COAL_NOW to be ready quickly for the next push */ 447 tx_push->tx_bd_len_flags_type = 448 cpu_to_le32((length << TX_BD_LEN_SHIFT) | 449 TX_BD_TYPE_LONG_TX_BD | 450 TX_BD_FLAGS_LHINT_512_AND_SMALLER | 451 TX_BD_FLAGS_COAL_NOW | 452 TX_BD_FLAGS_PACKET_END | 453 (2 << TX_BD_FLAGS_BD_CNT_SHIFT)); 454 455 if (skb->ip_summed == CHECKSUM_PARTIAL) 456 tx_push1->tx_bd_hsize_lflags = 457 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 458 else 459 tx_push1->tx_bd_hsize_lflags = 0; 460 461 tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); 462 tx_push1->tx_bd_cfa_action = 463 cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT); 464 465 end = pdata + length; 466 end = PTR_ALIGN(end, 8) - 1; 467 *end = 0; 468 469 skb_copy_from_linear_data(skb, pdata, len); 470 pdata += len; 471 for (j = 0; j < last_frag; j++) { 472 skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; 473 void *fptr; 474 475 fptr = skb_frag_address_safe(frag); 476 if (!fptr) 477 goto normal_tx; 478 479 memcpy(pdata, fptr, skb_frag_size(frag)); 480 pdata += skb_frag_size(frag); 481 } 482 483 txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type; 484 txbd->tx_bd_haddr = txr->data_mapping; 485 prod = NEXT_TX(prod); 486 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 487 memcpy(txbd, tx_push1, sizeof(*txbd)); 488 prod = NEXT_TX(prod); 489 tx_push->doorbell = 490 cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod); 491 txr->tx_prod = prod; 492 493 tx_buf->is_push = 1; 494 netdev_tx_sent_queue(txq, skb->len); 495 wmb(); /* Sync is_push and byte queue before pushing data */ 496 497 push_len = (length + sizeof(*tx_push) + 7) / 8; 498 if (push_len > 16) { 499 __iowrite64_copy(db, tx_push_buf, 16); 500 __iowrite32_copy(db + 4, tx_push_buf + 1, 501 (push_len - 16) << 1); 502 } else { 503 __iowrite64_copy(db, tx_push_buf, push_len); 504 } 505 506 goto tx_done; 507 } 508 509 normal_tx: 510 if (length < BNXT_MIN_PKT_SIZE) { 511 pad = BNXT_MIN_PKT_SIZE - length; 512 if (skb_pad(skb, pad)) 513 /* SKB already freed. */ 514 goto tx_kick_pending; 515 length = BNXT_MIN_PKT_SIZE; 516 } 517 518 mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE); 519 520 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) 521 goto tx_free; 522 523 dma_unmap_addr_set(tx_buf, mapping, mapping); 524 flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD | 525 ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT); 526 527 txbd->tx_bd_haddr = cpu_to_le64(mapping); 528 529 prod = NEXT_TX(prod); 530 txbd1 = (struct tx_bd_ext *) 531 &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 532 533 txbd1->tx_bd_hsize_lflags = lflags; 534 if (skb_is_gso(skb)) { 535 u32 hdr_len; 536 537 if (skb->encapsulation) 538 hdr_len = skb_inner_tcp_all_headers(skb); 539 else 540 hdr_len = skb_tcp_all_headers(skb); 541 542 txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_LSO | 543 TX_BD_FLAGS_T_IPID | 544 (hdr_len << (TX_BD_HSIZE_SHIFT - 1))); 545 length = skb_shinfo(skb)->gso_size; 546 txbd1->tx_bd_mss = cpu_to_le32(length); 547 length += hdr_len; 548 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 549 txbd1->tx_bd_hsize_lflags |= 550 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 551 txbd1->tx_bd_mss = 0; 552 } 553 554 length >>= 9; 555 if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) { 556 dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n", 557 skb->len); 558 i = 0; 559 goto tx_dma_error; 560 } 561 flags |= bnxt_lhint_arr[length]; 562 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 563 564 txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); 565 txbd1->tx_bd_cfa_action = 566 cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT); 567 for (i = 0; i < last_frag; i++) { 568 skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 569 570 prod = NEXT_TX(prod); 571 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 572 573 len = skb_frag_size(frag); 574 mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len, 575 DMA_TO_DEVICE); 576 577 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) 578 goto tx_dma_error; 579 580 tx_buf = &txr->tx_buf_ring[prod]; 581 dma_unmap_addr_set(tx_buf, mapping, mapping); 582 583 txbd->tx_bd_haddr = cpu_to_le64(mapping); 584 585 flags = len << TX_BD_LEN_SHIFT; 586 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 587 } 588 589 flags &= ~TX_BD_LEN; 590 txbd->tx_bd_len_flags_type = 591 cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags | 592 TX_BD_FLAGS_PACKET_END); 593 594 netdev_tx_sent_queue(txq, skb->len); 595 596 skb_tx_timestamp(skb); 597 598 /* Sync BD data before updating doorbell */ 599 wmb(); 600 601 prod = NEXT_TX(prod); 602 txr->tx_prod = prod; 603 604 if (!netdev_xmit_more() || netif_xmit_stopped(txq)) 605 bnxt_txr_db_kick(bp, txr, prod); 606 else 607 txr->kick_pending = 1; 608 609 tx_done: 610 611 if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) { 612 if (netdev_xmit_more() && !tx_buf->is_push) 613 bnxt_txr_db_kick(bp, txr, prod); 614 615 bnxt_txr_netif_try_stop_queue(bp, txr, txq); 616 } 617 return NETDEV_TX_OK; 618 619 tx_dma_error: 620 if (BNXT_TX_PTP_IS_SET(lflags)) 621 atomic_inc(&bp->ptp_cfg->tx_avail); 622 623 last_frag = i; 624 625 /* start back at beginning and unmap skb */ 626 prod = txr->tx_prod; 627 tx_buf = &txr->tx_buf_ring[prod]; 628 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 629 skb_headlen(skb), DMA_TO_DEVICE); 630 prod = NEXT_TX(prod); 631 632 /* unmap remaining mapped pages */ 633 for (i = 0; i < last_frag; i++) { 634 prod = NEXT_TX(prod); 635 tx_buf = &txr->tx_buf_ring[prod]; 636 dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 637 skb_frag_size(&skb_shinfo(skb)->frags[i]), 638 DMA_TO_DEVICE); 639 } 640 641 tx_free: 642 dev_kfree_skb_any(skb); 643 tx_kick_pending: 644 if (txr->kick_pending) 645 bnxt_txr_db_kick(bp, txr, txr->tx_prod); 646 txr->tx_buf_ring[txr->tx_prod].skb = NULL; 647 dev_core_stats_tx_dropped_inc(dev); 648 return NETDEV_TX_OK; 649 } 650 651 static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts) 652 { 653 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 654 struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index); 655 u16 cons = txr->tx_cons; 656 struct pci_dev *pdev = bp->pdev; 657 int i; 658 unsigned int tx_bytes = 0; 659 660 for (i = 0; i < nr_pkts; i++) { 661 struct bnxt_sw_tx_bd *tx_buf; 662 struct sk_buff *skb; 663 int j, last; 664 665 tx_buf = &txr->tx_buf_ring[cons]; 666 cons = NEXT_TX(cons); 667 skb = tx_buf->skb; 668 tx_buf->skb = NULL; 669 670 tx_bytes += skb->len; 671 672 if (tx_buf->is_push) { 673 tx_buf->is_push = 0; 674 goto next_tx_int; 675 } 676 677 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 678 skb_headlen(skb), DMA_TO_DEVICE); 679 last = tx_buf->nr_frags; 680 681 for (j = 0; j < last; j++) { 682 cons = NEXT_TX(cons); 683 tx_buf = &txr->tx_buf_ring[cons]; 684 dma_unmap_page( 685 &pdev->dev, 686 dma_unmap_addr(tx_buf, mapping), 687 skb_frag_size(&skb_shinfo(skb)->frags[j]), 688 DMA_TO_DEVICE); 689 } 690 if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) { 691 if (bp->flags & BNXT_FLAG_CHIP_P5) { 692 /* PTP worker takes ownership of the skb */ 693 if (!bnxt_get_tx_ts_p5(bp, skb)) 694 skb = NULL; 695 else 696 atomic_inc(&bp->ptp_cfg->tx_avail); 697 } 698 } 699 700 next_tx_int: 701 cons = NEXT_TX(cons); 702 703 dev_kfree_skb_any(skb); 704 } 705 706 netdev_tx_completed_queue(txq, nr_pkts, tx_bytes); 707 txr->tx_cons = cons; 708 709 /* Need to make the tx_cons update visible to bnxt_start_xmit() 710 * before checking for netif_tx_queue_stopped(). Without the 711 * memory barrier, there is a small possibility that bnxt_start_xmit() 712 * will miss it and cause the queue to be stopped forever. 713 */ 714 smp_mb(); 715 716 if (unlikely(netif_tx_queue_stopped(txq)) && 717 bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh && 718 READ_ONCE(txr->dev_state) != BNXT_DEV_STATE_CLOSING) 719 netif_tx_wake_queue(txq); 720 } 721 722 static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping, 723 struct bnxt_rx_ring_info *rxr, 724 gfp_t gfp) 725 { 726 struct device *dev = &bp->pdev->dev; 727 struct page *page; 728 729 page = page_pool_dev_alloc_pages(rxr->page_pool); 730 if (!page) 731 return NULL; 732 733 *mapping = dma_map_page_attrs(dev, page, 0, PAGE_SIZE, bp->rx_dir, 734 DMA_ATTR_WEAK_ORDERING); 735 if (dma_mapping_error(dev, *mapping)) { 736 page_pool_recycle_direct(rxr->page_pool, page); 737 return NULL; 738 } 739 return page; 740 } 741 742 static inline u8 *__bnxt_alloc_rx_frag(struct bnxt *bp, dma_addr_t *mapping, 743 gfp_t gfp) 744 { 745 u8 *data; 746 struct pci_dev *pdev = bp->pdev; 747 748 if (gfp == GFP_ATOMIC) 749 data = napi_alloc_frag(bp->rx_buf_size); 750 else 751 data = netdev_alloc_frag(bp->rx_buf_size); 752 if (!data) 753 return NULL; 754 755 *mapping = dma_map_single_attrs(&pdev->dev, data + bp->rx_dma_offset, 756 bp->rx_buf_use_size, bp->rx_dir, 757 DMA_ATTR_WEAK_ORDERING); 758 759 if (dma_mapping_error(&pdev->dev, *mapping)) { 760 skb_free_frag(data); 761 data = NULL; 762 } 763 return data; 764 } 765 766 int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 767 u16 prod, gfp_t gfp) 768 { 769 struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 770 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod]; 771 dma_addr_t mapping; 772 773 if (BNXT_RX_PAGE_MODE(bp)) { 774 struct page *page = 775 __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp); 776 777 if (!page) 778 return -ENOMEM; 779 780 mapping += bp->rx_dma_offset; 781 rx_buf->data = page; 782 rx_buf->data_ptr = page_address(page) + bp->rx_offset; 783 } else { 784 u8 *data = __bnxt_alloc_rx_frag(bp, &mapping, gfp); 785 786 if (!data) 787 return -ENOMEM; 788 789 rx_buf->data = data; 790 rx_buf->data_ptr = data + bp->rx_offset; 791 } 792 rx_buf->mapping = mapping; 793 794 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 795 return 0; 796 } 797 798 void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data) 799 { 800 u16 prod = rxr->rx_prod; 801 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 802 struct rx_bd *cons_bd, *prod_bd; 803 804 prod_rx_buf = &rxr->rx_buf_ring[prod]; 805 cons_rx_buf = &rxr->rx_buf_ring[cons]; 806 807 prod_rx_buf->data = data; 808 prod_rx_buf->data_ptr = cons_rx_buf->data_ptr; 809 810 prod_rx_buf->mapping = cons_rx_buf->mapping; 811 812 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 813 cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)]; 814 815 prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr; 816 } 817 818 static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) 819 { 820 u16 next, max = rxr->rx_agg_bmap_size; 821 822 next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx); 823 if (next >= max) 824 next = find_first_zero_bit(rxr->rx_agg_bmap, max); 825 return next; 826 } 827 828 static inline int bnxt_alloc_rx_page(struct bnxt *bp, 829 struct bnxt_rx_ring_info *rxr, 830 u16 prod, gfp_t gfp) 831 { 832 struct rx_bd *rxbd = 833 &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 834 struct bnxt_sw_rx_agg_bd *rx_agg_buf; 835 struct pci_dev *pdev = bp->pdev; 836 struct page *page; 837 dma_addr_t mapping; 838 u16 sw_prod = rxr->rx_sw_agg_prod; 839 unsigned int offset = 0; 840 841 if (BNXT_RX_PAGE_MODE(bp)) { 842 page = __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp); 843 844 if (!page) 845 return -ENOMEM; 846 847 } else { 848 if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) { 849 page = rxr->rx_page; 850 if (!page) { 851 page = alloc_page(gfp); 852 if (!page) 853 return -ENOMEM; 854 rxr->rx_page = page; 855 rxr->rx_page_offset = 0; 856 } 857 offset = rxr->rx_page_offset; 858 rxr->rx_page_offset += BNXT_RX_PAGE_SIZE; 859 if (rxr->rx_page_offset == PAGE_SIZE) 860 rxr->rx_page = NULL; 861 else 862 get_page(page); 863 } else { 864 page = alloc_page(gfp); 865 if (!page) 866 return -ENOMEM; 867 } 868 869 mapping = dma_map_page_attrs(&pdev->dev, page, offset, 870 BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, 871 DMA_ATTR_WEAK_ORDERING); 872 if (dma_mapping_error(&pdev->dev, mapping)) { 873 __free_page(page); 874 return -EIO; 875 } 876 } 877 878 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 879 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 880 881 __set_bit(sw_prod, rxr->rx_agg_bmap); 882 rx_agg_buf = &rxr->rx_agg_ring[sw_prod]; 883 rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod); 884 885 rx_agg_buf->page = page; 886 rx_agg_buf->offset = offset; 887 rx_agg_buf->mapping = mapping; 888 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 889 rxbd->rx_bd_opaque = sw_prod; 890 return 0; 891 } 892 893 static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp, 894 struct bnxt_cp_ring_info *cpr, 895 u16 cp_cons, u16 curr) 896 { 897 struct rx_agg_cmp *agg; 898 899 cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr)); 900 agg = (struct rx_agg_cmp *) 901 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 902 return agg; 903 } 904 905 static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp, 906 struct bnxt_rx_ring_info *rxr, 907 u16 agg_id, u16 curr) 908 { 909 struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id]; 910 911 return &tpa_info->agg_arr[curr]; 912 } 913 914 static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx, 915 u16 start, u32 agg_bufs, bool tpa) 916 { 917 struct bnxt_napi *bnapi = cpr->bnapi; 918 struct bnxt *bp = bnapi->bp; 919 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 920 u16 prod = rxr->rx_agg_prod; 921 u16 sw_prod = rxr->rx_sw_agg_prod; 922 bool p5_tpa = false; 923 u32 i; 924 925 if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa) 926 p5_tpa = true; 927 928 for (i = 0; i < agg_bufs; i++) { 929 u16 cons; 930 struct rx_agg_cmp *agg; 931 struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf; 932 struct rx_bd *prod_bd; 933 struct page *page; 934 935 if (p5_tpa) 936 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i); 937 else 938 agg = bnxt_get_agg(bp, cpr, idx, start + i); 939 cons = agg->rx_agg_cmp_opaque; 940 __clear_bit(cons, rxr->rx_agg_bmap); 941 942 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 943 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 944 945 __set_bit(sw_prod, rxr->rx_agg_bmap); 946 prod_rx_buf = &rxr->rx_agg_ring[sw_prod]; 947 cons_rx_buf = &rxr->rx_agg_ring[cons]; 948 949 /* It is possible for sw_prod to be equal to cons, so 950 * set cons_rx_buf->page to NULL first. 951 */ 952 page = cons_rx_buf->page; 953 cons_rx_buf->page = NULL; 954 prod_rx_buf->page = page; 955 prod_rx_buf->offset = cons_rx_buf->offset; 956 957 prod_rx_buf->mapping = cons_rx_buf->mapping; 958 959 prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 960 961 prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping); 962 prod_bd->rx_bd_opaque = sw_prod; 963 964 prod = NEXT_RX_AGG(prod); 965 sw_prod = NEXT_RX_AGG(sw_prod); 966 } 967 rxr->rx_agg_prod = prod; 968 rxr->rx_sw_agg_prod = sw_prod; 969 } 970 971 static struct sk_buff *bnxt_rx_multi_page_skb(struct bnxt *bp, 972 struct bnxt_rx_ring_info *rxr, 973 u16 cons, void *data, u8 *data_ptr, 974 dma_addr_t dma_addr, 975 unsigned int offset_and_len) 976 { 977 unsigned int len = offset_and_len & 0xffff; 978 struct page *page = data; 979 u16 prod = rxr->rx_prod; 980 struct sk_buff *skb; 981 int err; 982 983 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 984 if (unlikely(err)) { 985 bnxt_reuse_rx_data(rxr, cons, data); 986 return NULL; 987 } 988 dma_addr -= bp->rx_dma_offset; 989 dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir, 990 DMA_ATTR_WEAK_ORDERING); 991 skb = build_skb(page_address(page), BNXT_PAGE_MODE_BUF_SIZE + 992 bp->rx_dma_offset); 993 if (!skb) { 994 __free_page(page); 995 return NULL; 996 } 997 skb_mark_for_recycle(skb); 998 skb_reserve(skb, bp->rx_dma_offset); 999 __skb_put(skb, len); 1000 1001 return skb; 1002 } 1003 1004 static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp, 1005 struct bnxt_rx_ring_info *rxr, 1006 u16 cons, void *data, u8 *data_ptr, 1007 dma_addr_t dma_addr, 1008 unsigned int offset_and_len) 1009 { 1010 unsigned int payload = offset_and_len >> 16; 1011 unsigned int len = offset_and_len & 0xffff; 1012 skb_frag_t *frag; 1013 struct page *page = data; 1014 u16 prod = rxr->rx_prod; 1015 struct sk_buff *skb; 1016 int off, err; 1017 1018 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 1019 if (unlikely(err)) { 1020 bnxt_reuse_rx_data(rxr, cons, data); 1021 return NULL; 1022 } 1023 dma_addr -= bp->rx_dma_offset; 1024 dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir, 1025 DMA_ATTR_WEAK_ORDERING); 1026 1027 if (unlikely(!payload)) 1028 payload = eth_get_headlen(bp->dev, data_ptr, len); 1029 1030 skb = napi_alloc_skb(&rxr->bnapi->napi, payload); 1031 if (!skb) { 1032 __free_page(page); 1033 return NULL; 1034 } 1035 1036 skb_mark_for_recycle(skb); 1037 off = (void *)data_ptr - page_address(page); 1038 skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE); 1039 memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN, 1040 payload + NET_IP_ALIGN); 1041 1042 frag = &skb_shinfo(skb)->frags[0]; 1043 skb_frag_size_sub(frag, payload); 1044 skb_frag_off_add(frag, payload); 1045 skb->data_len -= payload; 1046 skb->tail += payload; 1047 1048 return skb; 1049 } 1050 1051 static struct sk_buff *bnxt_rx_skb(struct bnxt *bp, 1052 struct bnxt_rx_ring_info *rxr, u16 cons, 1053 void *data, u8 *data_ptr, 1054 dma_addr_t dma_addr, 1055 unsigned int offset_and_len) 1056 { 1057 u16 prod = rxr->rx_prod; 1058 struct sk_buff *skb; 1059 int err; 1060 1061 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 1062 if (unlikely(err)) { 1063 bnxt_reuse_rx_data(rxr, cons, data); 1064 return NULL; 1065 } 1066 1067 skb = build_skb(data, bp->rx_buf_size); 1068 dma_unmap_single_attrs(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size, 1069 bp->rx_dir, DMA_ATTR_WEAK_ORDERING); 1070 if (!skb) { 1071 skb_free_frag(data); 1072 return NULL; 1073 } 1074 1075 skb_reserve(skb, bp->rx_offset); 1076 skb_put(skb, offset_and_len & 0xffff); 1077 return skb; 1078 } 1079 1080 static u32 __bnxt_rx_agg_pages(struct bnxt *bp, 1081 struct bnxt_cp_ring_info *cpr, 1082 struct skb_shared_info *shinfo, 1083 u16 idx, u32 agg_bufs, bool tpa, 1084 struct xdp_buff *xdp) 1085 { 1086 struct bnxt_napi *bnapi = cpr->bnapi; 1087 struct pci_dev *pdev = bp->pdev; 1088 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1089 u16 prod = rxr->rx_agg_prod; 1090 u32 i, total_frag_len = 0; 1091 bool p5_tpa = false; 1092 1093 if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa) 1094 p5_tpa = true; 1095 1096 for (i = 0; i < agg_bufs; i++) { 1097 skb_frag_t *frag = &shinfo->frags[i]; 1098 u16 cons, frag_len; 1099 struct rx_agg_cmp *agg; 1100 struct bnxt_sw_rx_agg_bd *cons_rx_buf; 1101 struct page *page; 1102 dma_addr_t mapping; 1103 1104 if (p5_tpa) 1105 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i); 1106 else 1107 agg = bnxt_get_agg(bp, cpr, idx, i); 1108 cons = agg->rx_agg_cmp_opaque; 1109 frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) & 1110 RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT; 1111 1112 cons_rx_buf = &rxr->rx_agg_ring[cons]; 1113 skb_frag_off_set(frag, cons_rx_buf->offset); 1114 skb_frag_size_set(frag, frag_len); 1115 __skb_frag_set_page(frag, cons_rx_buf->page); 1116 shinfo->nr_frags = i + 1; 1117 __clear_bit(cons, rxr->rx_agg_bmap); 1118 1119 /* It is possible for bnxt_alloc_rx_page() to allocate 1120 * a sw_prod index that equals the cons index, so we 1121 * need to clear the cons entry now. 1122 */ 1123 mapping = cons_rx_buf->mapping; 1124 page = cons_rx_buf->page; 1125 cons_rx_buf->page = NULL; 1126 1127 if (xdp && page_is_pfmemalloc(page)) 1128 xdp_buff_set_frag_pfmemalloc(xdp); 1129 1130 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) { 1131 unsigned int nr_frags; 1132 1133 nr_frags = --shinfo->nr_frags; 1134 __skb_frag_set_page(&shinfo->frags[nr_frags], NULL); 1135 cons_rx_buf->page = page; 1136 1137 /* Update prod since possibly some pages have been 1138 * allocated already. 1139 */ 1140 rxr->rx_agg_prod = prod; 1141 bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa); 1142 return 0; 1143 } 1144 1145 dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE, 1146 bp->rx_dir, 1147 DMA_ATTR_WEAK_ORDERING); 1148 1149 total_frag_len += frag_len; 1150 prod = NEXT_RX_AGG(prod); 1151 } 1152 rxr->rx_agg_prod = prod; 1153 return total_frag_len; 1154 } 1155 1156 static struct sk_buff *bnxt_rx_agg_pages_skb(struct bnxt *bp, 1157 struct bnxt_cp_ring_info *cpr, 1158 struct sk_buff *skb, u16 idx, 1159 u32 agg_bufs, bool tpa) 1160 { 1161 struct skb_shared_info *shinfo = skb_shinfo(skb); 1162 u32 total_frag_len = 0; 1163 1164 total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, idx, 1165 agg_bufs, tpa, NULL); 1166 if (!total_frag_len) { 1167 dev_kfree_skb(skb); 1168 return NULL; 1169 } 1170 1171 skb->data_len += total_frag_len; 1172 skb->len += total_frag_len; 1173 skb->truesize += PAGE_SIZE * agg_bufs; 1174 return skb; 1175 } 1176 1177 static u32 bnxt_rx_agg_pages_xdp(struct bnxt *bp, 1178 struct bnxt_cp_ring_info *cpr, 1179 struct xdp_buff *xdp, u16 idx, 1180 u32 agg_bufs, bool tpa) 1181 { 1182 struct skb_shared_info *shinfo = xdp_get_shared_info_from_buff(xdp); 1183 u32 total_frag_len = 0; 1184 1185 if (!xdp_buff_has_frags(xdp)) 1186 shinfo->nr_frags = 0; 1187 1188 total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, 1189 idx, agg_bufs, tpa, xdp); 1190 if (total_frag_len) { 1191 xdp_buff_set_frags_flag(xdp); 1192 shinfo->nr_frags = agg_bufs; 1193 shinfo->xdp_frags_size = total_frag_len; 1194 } 1195 return total_frag_len; 1196 } 1197 1198 static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 1199 u8 agg_bufs, u32 *raw_cons) 1200 { 1201 u16 last; 1202 struct rx_agg_cmp *agg; 1203 1204 *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs); 1205 last = RING_CMP(*raw_cons); 1206 agg = (struct rx_agg_cmp *) 1207 &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)]; 1208 return RX_AGG_CMP_VALID(agg, *raw_cons); 1209 } 1210 1211 static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data, 1212 unsigned int len, 1213 dma_addr_t mapping) 1214 { 1215 struct bnxt *bp = bnapi->bp; 1216 struct pci_dev *pdev = bp->pdev; 1217 struct sk_buff *skb; 1218 1219 skb = napi_alloc_skb(&bnapi->napi, len); 1220 if (!skb) 1221 return NULL; 1222 1223 dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh, 1224 bp->rx_dir); 1225 1226 memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN, 1227 len + NET_IP_ALIGN); 1228 1229 dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh, 1230 bp->rx_dir); 1231 1232 skb_put(skb, len); 1233 return skb; 1234 } 1235 1236 static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 1237 u32 *raw_cons, void *cmp) 1238 { 1239 struct rx_cmp *rxcmp = cmp; 1240 u32 tmp_raw_cons = *raw_cons; 1241 u8 cmp_type, agg_bufs = 0; 1242 1243 cmp_type = RX_CMP_TYPE(rxcmp); 1244 1245 if (cmp_type == CMP_TYPE_RX_L2_CMP) { 1246 agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & 1247 RX_CMP_AGG_BUFS) >> 1248 RX_CMP_AGG_BUFS_SHIFT; 1249 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 1250 struct rx_tpa_end_cmp *tpa_end = cmp; 1251 1252 if (bp->flags & BNXT_FLAG_CHIP_P5) 1253 return 0; 1254 1255 agg_bufs = TPA_END_AGG_BUFS(tpa_end); 1256 } 1257 1258 if (agg_bufs) { 1259 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 1260 return -EBUSY; 1261 } 1262 *raw_cons = tmp_raw_cons; 1263 return 0; 1264 } 1265 1266 static void bnxt_queue_fw_reset_work(struct bnxt *bp, unsigned long delay) 1267 { 1268 if (!(test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))) 1269 return; 1270 1271 if (BNXT_PF(bp)) 1272 queue_delayed_work(bnxt_pf_wq, &bp->fw_reset_task, delay); 1273 else 1274 schedule_delayed_work(&bp->fw_reset_task, delay); 1275 } 1276 1277 static void bnxt_queue_sp_work(struct bnxt *bp) 1278 { 1279 if (BNXT_PF(bp)) 1280 queue_work(bnxt_pf_wq, &bp->sp_task); 1281 else 1282 schedule_work(&bp->sp_task); 1283 } 1284 1285 static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 1286 { 1287 if (!rxr->bnapi->in_reset) { 1288 rxr->bnapi->in_reset = true; 1289 if (bp->flags & BNXT_FLAG_CHIP_P5) 1290 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); 1291 else 1292 set_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event); 1293 bnxt_queue_sp_work(bp); 1294 } 1295 rxr->rx_next_cons = 0xffff; 1296 } 1297 1298 static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) 1299 { 1300 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1301 u16 idx = agg_id & MAX_TPA_P5_MASK; 1302 1303 if (test_bit(idx, map->agg_idx_bmap)) 1304 idx = find_first_zero_bit(map->agg_idx_bmap, 1305 BNXT_AGG_IDX_BMAP_SIZE); 1306 __set_bit(idx, map->agg_idx_bmap); 1307 map->agg_id_tbl[agg_id] = idx; 1308 return idx; 1309 } 1310 1311 static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) 1312 { 1313 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1314 1315 __clear_bit(idx, map->agg_idx_bmap); 1316 } 1317 1318 static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) 1319 { 1320 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1321 1322 return map->agg_id_tbl[agg_id]; 1323 } 1324 1325 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 1326 struct rx_tpa_start_cmp *tpa_start, 1327 struct rx_tpa_start_cmp_ext *tpa_start1) 1328 { 1329 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 1330 struct bnxt_tpa_info *tpa_info; 1331 u16 cons, prod, agg_id; 1332 struct rx_bd *prod_bd; 1333 dma_addr_t mapping; 1334 1335 if (bp->flags & BNXT_FLAG_CHIP_P5) { 1336 agg_id = TPA_START_AGG_ID_P5(tpa_start); 1337 agg_id = bnxt_alloc_agg_idx(rxr, agg_id); 1338 } else { 1339 agg_id = TPA_START_AGG_ID(tpa_start); 1340 } 1341 cons = tpa_start->rx_tpa_start_cmp_opaque; 1342 prod = rxr->rx_prod; 1343 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1344 prod_rx_buf = &rxr->rx_buf_ring[prod]; 1345 tpa_info = &rxr->rx_tpa[agg_id]; 1346 1347 if (unlikely(cons != rxr->rx_next_cons || 1348 TPA_START_ERROR(tpa_start))) { 1349 netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n", 1350 cons, rxr->rx_next_cons, 1351 TPA_START_ERROR_CODE(tpa_start1)); 1352 bnxt_sched_reset(bp, rxr); 1353 return; 1354 } 1355 /* Store cfa_code in tpa_info to use in tpa_end 1356 * completion processing. 1357 */ 1358 tpa_info->cfa_code = TPA_START_CFA_CODE(tpa_start1); 1359 prod_rx_buf->data = tpa_info->data; 1360 prod_rx_buf->data_ptr = tpa_info->data_ptr; 1361 1362 mapping = tpa_info->mapping; 1363 prod_rx_buf->mapping = mapping; 1364 1365 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 1366 1367 prod_bd->rx_bd_haddr = cpu_to_le64(mapping); 1368 1369 tpa_info->data = cons_rx_buf->data; 1370 tpa_info->data_ptr = cons_rx_buf->data_ptr; 1371 cons_rx_buf->data = NULL; 1372 tpa_info->mapping = cons_rx_buf->mapping; 1373 1374 tpa_info->len = 1375 le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >> 1376 RX_TPA_START_CMP_LEN_SHIFT; 1377 if (likely(TPA_START_HASH_VALID(tpa_start))) { 1378 u32 hash_type = TPA_START_HASH_TYPE(tpa_start); 1379 1380 tpa_info->hash_type = PKT_HASH_TYPE_L4; 1381 tpa_info->gso_type = SKB_GSO_TCPV4; 1382 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ 1383 if (hash_type == 3 || TPA_START_IS_IPV6(tpa_start1)) 1384 tpa_info->gso_type = SKB_GSO_TCPV6; 1385 tpa_info->rss_hash = 1386 le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash); 1387 } else { 1388 tpa_info->hash_type = PKT_HASH_TYPE_NONE; 1389 tpa_info->gso_type = 0; 1390 netif_warn(bp, rx_err, bp->dev, "TPA packet without valid hash\n"); 1391 } 1392 tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2); 1393 tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata); 1394 tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info); 1395 tpa_info->agg_count = 0; 1396 1397 rxr->rx_prod = NEXT_RX(prod); 1398 cons = NEXT_RX(cons); 1399 rxr->rx_next_cons = NEXT_RX(cons); 1400 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1401 1402 bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data); 1403 rxr->rx_prod = NEXT_RX(rxr->rx_prod); 1404 cons_rx_buf->data = NULL; 1405 } 1406 1407 static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs) 1408 { 1409 if (agg_bufs) 1410 bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true); 1411 } 1412 1413 #ifdef CONFIG_INET 1414 static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto) 1415 { 1416 struct udphdr *uh = NULL; 1417 1418 if (ip_proto == htons(ETH_P_IP)) { 1419 struct iphdr *iph = (struct iphdr *)skb->data; 1420 1421 if (iph->protocol == IPPROTO_UDP) 1422 uh = (struct udphdr *)(iph + 1); 1423 } else { 1424 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data; 1425 1426 if (iph->nexthdr == IPPROTO_UDP) 1427 uh = (struct udphdr *)(iph + 1); 1428 } 1429 if (uh) { 1430 if (uh->check) 1431 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM; 1432 else 1433 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL; 1434 } 1435 } 1436 #endif 1437 1438 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info, 1439 int payload_off, int tcp_ts, 1440 struct sk_buff *skb) 1441 { 1442 #ifdef CONFIG_INET 1443 struct tcphdr *th; 1444 int len, nw_off; 1445 u16 outer_ip_off, inner_ip_off, inner_mac_off; 1446 u32 hdr_info = tpa_info->hdr_info; 1447 bool loopback = false; 1448 1449 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); 1450 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); 1451 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); 1452 1453 /* If the packet is an internal loopback packet, the offsets will 1454 * have an extra 4 bytes. 1455 */ 1456 if (inner_mac_off == 4) { 1457 loopback = true; 1458 } else if (inner_mac_off > 4) { 1459 __be16 proto = *((__be16 *)(skb->data + inner_ip_off - 1460 ETH_HLEN - 2)); 1461 1462 /* We only support inner iPv4/ipv6. If we don't see the 1463 * correct protocol ID, it must be a loopback packet where 1464 * the offsets are off by 4. 1465 */ 1466 if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6)) 1467 loopback = true; 1468 } 1469 if (loopback) { 1470 /* internal loopback packet, subtract all offsets by 4 */ 1471 inner_ip_off -= 4; 1472 inner_mac_off -= 4; 1473 outer_ip_off -= 4; 1474 } 1475 1476 nw_off = inner_ip_off - ETH_HLEN; 1477 skb_set_network_header(skb, nw_off); 1478 if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) { 1479 struct ipv6hdr *iph = ipv6_hdr(skb); 1480 1481 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1482 len = skb->len - skb_transport_offset(skb); 1483 th = tcp_hdr(skb); 1484 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1485 } else { 1486 struct iphdr *iph = ip_hdr(skb); 1487 1488 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1489 len = skb->len - skb_transport_offset(skb); 1490 th = tcp_hdr(skb); 1491 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1492 } 1493 1494 if (inner_mac_off) { /* tunnel */ 1495 __be16 proto = *((__be16 *)(skb->data + outer_ip_off - 1496 ETH_HLEN - 2)); 1497 1498 bnxt_gro_tunnel(skb, proto); 1499 } 1500 #endif 1501 return skb; 1502 } 1503 1504 static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info, 1505 int payload_off, int tcp_ts, 1506 struct sk_buff *skb) 1507 { 1508 #ifdef CONFIG_INET 1509 u16 outer_ip_off, inner_ip_off, inner_mac_off; 1510 u32 hdr_info = tpa_info->hdr_info; 1511 int iphdr_len, nw_off; 1512 1513 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); 1514 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); 1515 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); 1516 1517 nw_off = inner_ip_off - ETH_HLEN; 1518 skb_set_network_header(skb, nw_off); 1519 iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ? 1520 sizeof(struct ipv6hdr) : sizeof(struct iphdr); 1521 skb_set_transport_header(skb, nw_off + iphdr_len); 1522 1523 if (inner_mac_off) { /* tunnel */ 1524 __be16 proto = *((__be16 *)(skb->data + outer_ip_off - 1525 ETH_HLEN - 2)); 1526 1527 bnxt_gro_tunnel(skb, proto); 1528 } 1529 #endif 1530 return skb; 1531 } 1532 1533 #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr)) 1534 #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr)) 1535 1536 static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info, 1537 int payload_off, int tcp_ts, 1538 struct sk_buff *skb) 1539 { 1540 #ifdef CONFIG_INET 1541 struct tcphdr *th; 1542 int len, nw_off, tcp_opt_len = 0; 1543 1544 if (tcp_ts) 1545 tcp_opt_len = 12; 1546 1547 if (tpa_info->gso_type == SKB_GSO_TCPV4) { 1548 struct iphdr *iph; 1549 1550 nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len - 1551 ETH_HLEN; 1552 skb_set_network_header(skb, nw_off); 1553 iph = ip_hdr(skb); 1554 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1555 len = skb->len - skb_transport_offset(skb); 1556 th = tcp_hdr(skb); 1557 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1558 } else if (tpa_info->gso_type == SKB_GSO_TCPV6) { 1559 struct ipv6hdr *iph; 1560 1561 nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len - 1562 ETH_HLEN; 1563 skb_set_network_header(skb, nw_off); 1564 iph = ipv6_hdr(skb); 1565 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1566 len = skb->len - skb_transport_offset(skb); 1567 th = tcp_hdr(skb); 1568 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1569 } else { 1570 dev_kfree_skb_any(skb); 1571 return NULL; 1572 } 1573 1574 if (nw_off) /* tunnel */ 1575 bnxt_gro_tunnel(skb, skb->protocol); 1576 #endif 1577 return skb; 1578 } 1579 1580 static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp, 1581 struct bnxt_tpa_info *tpa_info, 1582 struct rx_tpa_end_cmp *tpa_end, 1583 struct rx_tpa_end_cmp_ext *tpa_end1, 1584 struct sk_buff *skb) 1585 { 1586 #ifdef CONFIG_INET 1587 int payload_off; 1588 u16 segs; 1589 1590 segs = TPA_END_TPA_SEGS(tpa_end); 1591 if (segs == 1) 1592 return skb; 1593 1594 NAPI_GRO_CB(skb)->count = segs; 1595 skb_shinfo(skb)->gso_size = 1596 le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len); 1597 skb_shinfo(skb)->gso_type = tpa_info->gso_type; 1598 if (bp->flags & BNXT_FLAG_CHIP_P5) 1599 payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1); 1600 else 1601 payload_off = TPA_END_PAYLOAD_OFF(tpa_end); 1602 skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb); 1603 if (likely(skb)) 1604 tcp_gro_complete(skb); 1605 #endif 1606 return skb; 1607 } 1608 1609 /* Given the cfa_code of a received packet determine which 1610 * netdev (vf-rep or PF) the packet is destined to. 1611 */ 1612 static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code) 1613 { 1614 struct net_device *dev = bnxt_get_vf_rep(bp, cfa_code); 1615 1616 /* if vf-rep dev is NULL, the must belongs to the PF */ 1617 return dev ? dev : bp->dev; 1618 } 1619 1620 static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp, 1621 struct bnxt_cp_ring_info *cpr, 1622 u32 *raw_cons, 1623 struct rx_tpa_end_cmp *tpa_end, 1624 struct rx_tpa_end_cmp_ext *tpa_end1, 1625 u8 *event) 1626 { 1627 struct bnxt_napi *bnapi = cpr->bnapi; 1628 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1629 u8 *data_ptr, agg_bufs; 1630 unsigned int len; 1631 struct bnxt_tpa_info *tpa_info; 1632 dma_addr_t mapping; 1633 struct sk_buff *skb; 1634 u16 idx = 0, agg_id; 1635 void *data; 1636 bool gro; 1637 1638 if (unlikely(bnapi->in_reset)) { 1639 int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end); 1640 1641 if (rc < 0) 1642 return ERR_PTR(-EBUSY); 1643 return NULL; 1644 } 1645 1646 if (bp->flags & BNXT_FLAG_CHIP_P5) { 1647 agg_id = TPA_END_AGG_ID_P5(tpa_end); 1648 agg_id = bnxt_lookup_agg_idx(rxr, agg_id); 1649 agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1); 1650 tpa_info = &rxr->rx_tpa[agg_id]; 1651 if (unlikely(agg_bufs != tpa_info->agg_count)) { 1652 netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n", 1653 agg_bufs, tpa_info->agg_count); 1654 agg_bufs = tpa_info->agg_count; 1655 } 1656 tpa_info->agg_count = 0; 1657 *event |= BNXT_AGG_EVENT; 1658 bnxt_free_agg_idx(rxr, agg_id); 1659 idx = agg_id; 1660 gro = !!(bp->flags & BNXT_FLAG_GRO); 1661 } else { 1662 agg_id = TPA_END_AGG_ID(tpa_end); 1663 agg_bufs = TPA_END_AGG_BUFS(tpa_end); 1664 tpa_info = &rxr->rx_tpa[agg_id]; 1665 idx = RING_CMP(*raw_cons); 1666 if (agg_bufs) { 1667 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons)) 1668 return ERR_PTR(-EBUSY); 1669 1670 *event |= BNXT_AGG_EVENT; 1671 idx = NEXT_CMP(idx); 1672 } 1673 gro = !!TPA_END_GRO(tpa_end); 1674 } 1675 data = tpa_info->data; 1676 data_ptr = tpa_info->data_ptr; 1677 prefetch(data_ptr); 1678 len = tpa_info->len; 1679 mapping = tpa_info->mapping; 1680 1681 if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) { 1682 bnxt_abort_tpa(cpr, idx, agg_bufs); 1683 if (agg_bufs > MAX_SKB_FRAGS) 1684 netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n", 1685 agg_bufs, (int)MAX_SKB_FRAGS); 1686 return NULL; 1687 } 1688 1689 if (len <= bp->rx_copy_thresh) { 1690 skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping); 1691 if (!skb) { 1692 bnxt_abort_tpa(cpr, idx, agg_bufs); 1693 cpr->sw_stats.rx.rx_oom_discards += 1; 1694 return NULL; 1695 } 1696 } else { 1697 u8 *new_data; 1698 dma_addr_t new_mapping; 1699 1700 new_data = __bnxt_alloc_rx_frag(bp, &new_mapping, GFP_ATOMIC); 1701 if (!new_data) { 1702 bnxt_abort_tpa(cpr, idx, agg_bufs); 1703 cpr->sw_stats.rx.rx_oom_discards += 1; 1704 return NULL; 1705 } 1706 1707 tpa_info->data = new_data; 1708 tpa_info->data_ptr = new_data + bp->rx_offset; 1709 tpa_info->mapping = new_mapping; 1710 1711 skb = build_skb(data, bp->rx_buf_size); 1712 dma_unmap_single_attrs(&bp->pdev->dev, mapping, 1713 bp->rx_buf_use_size, bp->rx_dir, 1714 DMA_ATTR_WEAK_ORDERING); 1715 1716 if (!skb) { 1717 skb_free_frag(data); 1718 bnxt_abort_tpa(cpr, idx, agg_bufs); 1719 cpr->sw_stats.rx.rx_oom_discards += 1; 1720 return NULL; 1721 } 1722 skb_reserve(skb, bp->rx_offset); 1723 skb_put(skb, len); 1724 } 1725 1726 if (agg_bufs) { 1727 skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, idx, agg_bufs, true); 1728 if (!skb) { 1729 /* Page reuse already handled by bnxt_rx_pages(). */ 1730 cpr->sw_stats.rx.rx_oom_discards += 1; 1731 return NULL; 1732 } 1733 } 1734 1735 skb->protocol = 1736 eth_type_trans(skb, bnxt_get_pkt_dev(bp, tpa_info->cfa_code)); 1737 1738 if (tpa_info->hash_type != PKT_HASH_TYPE_NONE) 1739 skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type); 1740 1741 if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) && 1742 (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) { 1743 __be16 vlan_proto = htons(tpa_info->metadata >> 1744 RX_CMP_FLAGS2_METADATA_TPID_SFT); 1745 u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK; 1746 1747 if (eth_type_vlan(vlan_proto)) { 1748 __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); 1749 } else { 1750 dev_kfree_skb(skb); 1751 return NULL; 1752 } 1753 } 1754 1755 skb_checksum_none_assert(skb); 1756 if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) { 1757 skb->ip_summed = CHECKSUM_UNNECESSARY; 1758 skb->csum_level = 1759 (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3; 1760 } 1761 1762 if (gro) 1763 skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb); 1764 1765 return skb; 1766 } 1767 1768 static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 1769 struct rx_agg_cmp *rx_agg) 1770 { 1771 u16 agg_id = TPA_AGG_AGG_ID(rx_agg); 1772 struct bnxt_tpa_info *tpa_info; 1773 1774 agg_id = bnxt_lookup_agg_idx(rxr, agg_id); 1775 tpa_info = &rxr->rx_tpa[agg_id]; 1776 BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS); 1777 tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg; 1778 } 1779 1780 static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi, 1781 struct sk_buff *skb) 1782 { 1783 if (skb->dev != bp->dev) { 1784 /* this packet belongs to a vf-rep */ 1785 bnxt_vf_rep_rx(bp, skb); 1786 return; 1787 } 1788 skb_record_rx_queue(skb, bnapi->index); 1789 napi_gro_receive(&bnapi->napi, skb); 1790 } 1791 1792 /* returns the following: 1793 * 1 - 1 packet successfully received 1794 * 0 - successful TPA_START, packet not completed yet 1795 * -EBUSY - completion ring does not have all the agg buffers yet 1796 * -ENOMEM - packet aborted due to out of memory 1797 * -EIO - packet aborted due to hw error indicated in BD 1798 */ 1799 static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 1800 u32 *raw_cons, u8 *event) 1801 { 1802 struct bnxt_napi *bnapi = cpr->bnapi; 1803 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1804 struct net_device *dev = bp->dev; 1805 struct rx_cmp *rxcmp; 1806 struct rx_cmp_ext *rxcmp1; 1807 u32 tmp_raw_cons = *raw_cons; 1808 u16 cfa_code, cons, prod, cp_cons = RING_CMP(tmp_raw_cons); 1809 struct bnxt_sw_rx_bd *rx_buf; 1810 unsigned int len; 1811 u8 *data_ptr, agg_bufs, cmp_type; 1812 bool xdp_active = false; 1813 dma_addr_t dma_addr; 1814 struct sk_buff *skb; 1815 struct xdp_buff xdp; 1816 u32 flags, misc; 1817 void *data; 1818 int rc = 0; 1819 1820 rxcmp = (struct rx_cmp *) 1821 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1822 1823 cmp_type = RX_CMP_TYPE(rxcmp); 1824 1825 if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) { 1826 bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp); 1827 goto next_rx_no_prod_no_len; 1828 } 1829 1830 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); 1831 cp_cons = RING_CMP(tmp_raw_cons); 1832 rxcmp1 = (struct rx_cmp_ext *) 1833 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1834 1835 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 1836 return -EBUSY; 1837 1838 /* The valid test of the entry must be done first before 1839 * reading any further. 1840 */ 1841 dma_rmb(); 1842 prod = rxr->rx_prod; 1843 1844 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) { 1845 bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp, 1846 (struct rx_tpa_start_cmp_ext *)rxcmp1); 1847 1848 *event |= BNXT_RX_EVENT; 1849 goto next_rx_no_prod_no_len; 1850 1851 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 1852 skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons, 1853 (struct rx_tpa_end_cmp *)rxcmp, 1854 (struct rx_tpa_end_cmp_ext *)rxcmp1, event); 1855 1856 if (IS_ERR(skb)) 1857 return -EBUSY; 1858 1859 rc = -ENOMEM; 1860 if (likely(skb)) { 1861 bnxt_deliver_skb(bp, bnapi, skb); 1862 rc = 1; 1863 } 1864 *event |= BNXT_RX_EVENT; 1865 goto next_rx_no_prod_no_len; 1866 } 1867 1868 cons = rxcmp->rx_cmp_opaque; 1869 if (unlikely(cons != rxr->rx_next_cons)) { 1870 int rc1 = bnxt_discard_rx(bp, cpr, &tmp_raw_cons, rxcmp); 1871 1872 /* 0xffff is forced error, don't print it */ 1873 if (rxr->rx_next_cons != 0xffff) 1874 netdev_warn(bp->dev, "RX cons %x != expected cons %x\n", 1875 cons, rxr->rx_next_cons); 1876 bnxt_sched_reset(bp, rxr); 1877 if (rc1) 1878 return rc1; 1879 goto next_rx_no_prod_no_len; 1880 } 1881 rx_buf = &rxr->rx_buf_ring[cons]; 1882 data = rx_buf->data; 1883 data_ptr = rx_buf->data_ptr; 1884 prefetch(data_ptr); 1885 1886 misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1); 1887 agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT; 1888 1889 if (agg_bufs) { 1890 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 1891 return -EBUSY; 1892 1893 cp_cons = NEXT_CMP(cp_cons); 1894 *event |= BNXT_AGG_EVENT; 1895 } 1896 *event |= BNXT_RX_EVENT; 1897 1898 rx_buf->data = NULL; 1899 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) { 1900 u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2); 1901 1902 bnxt_reuse_rx_data(rxr, cons, data); 1903 if (agg_bufs) 1904 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs, 1905 false); 1906 1907 rc = -EIO; 1908 if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) { 1909 bnapi->cp_ring.sw_stats.rx.rx_buf_errors++; 1910 if (!(bp->flags & BNXT_FLAG_CHIP_P5) && 1911 !(bp->fw_cap & BNXT_FW_CAP_RING_MONITOR)) { 1912 netdev_warn_once(bp->dev, "RX buffer error %x\n", 1913 rx_err); 1914 bnxt_sched_reset(bp, rxr); 1915 } 1916 } 1917 goto next_rx_no_len; 1918 } 1919 1920 flags = le32_to_cpu(rxcmp->rx_cmp_len_flags_type); 1921 len = flags >> RX_CMP_LEN_SHIFT; 1922 dma_addr = rx_buf->mapping; 1923 1924 if (bnxt_xdp_attached(bp, rxr)) { 1925 bnxt_xdp_buff_init(bp, rxr, cons, &data_ptr, &len, &xdp); 1926 if (agg_bufs) { 1927 u32 frag_len = bnxt_rx_agg_pages_xdp(bp, cpr, &xdp, 1928 cp_cons, agg_bufs, 1929 false); 1930 if (!frag_len) { 1931 cpr->sw_stats.rx.rx_oom_discards += 1; 1932 rc = -ENOMEM; 1933 goto next_rx; 1934 } 1935 } 1936 xdp_active = true; 1937 } 1938 1939 if (xdp_active) { 1940 if (bnxt_rx_xdp(bp, rxr, cons, xdp, data, &len, event)) { 1941 rc = 1; 1942 goto next_rx; 1943 } 1944 } 1945 1946 if (len <= bp->rx_copy_thresh) { 1947 skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr); 1948 bnxt_reuse_rx_data(rxr, cons, data); 1949 if (!skb) { 1950 if (agg_bufs) { 1951 if (!xdp_active) 1952 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, 1953 agg_bufs, false); 1954 else 1955 bnxt_xdp_buff_frags_free(rxr, &xdp); 1956 } 1957 cpr->sw_stats.rx.rx_oom_discards += 1; 1958 rc = -ENOMEM; 1959 goto next_rx; 1960 } 1961 } else { 1962 u32 payload; 1963 1964 if (rx_buf->data_ptr == data_ptr) 1965 payload = misc & RX_CMP_PAYLOAD_OFFSET; 1966 else 1967 payload = 0; 1968 skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr, 1969 payload | len); 1970 if (!skb) { 1971 cpr->sw_stats.rx.rx_oom_discards += 1; 1972 rc = -ENOMEM; 1973 goto next_rx; 1974 } 1975 } 1976 1977 if (agg_bufs) { 1978 if (!xdp_active) { 1979 skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, cp_cons, agg_bufs, false); 1980 if (!skb) { 1981 cpr->sw_stats.rx.rx_oom_discards += 1; 1982 rc = -ENOMEM; 1983 goto next_rx; 1984 } 1985 } else { 1986 skb = bnxt_xdp_build_skb(bp, skb, agg_bufs, rxr->page_pool, &xdp, rxcmp1); 1987 if (!skb) { 1988 /* we should be able to free the old skb here */ 1989 bnxt_xdp_buff_frags_free(rxr, &xdp); 1990 cpr->sw_stats.rx.rx_oom_discards += 1; 1991 rc = -ENOMEM; 1992 goto next_rx; 1993 } 1994 } 1995 } 1996 1997 if (RX_CMP_HASH_VALID(rxcmp)) { 1998 u32 hash_type = RX_CMP_HASH_TYPE(rxcmp); 1999 enum pkt_hash_types type = PKT_HASH_TYPE_L4; 2000 2001 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ 2002 if (hash_type != 1 && hash_type != 3) 2003 type = PKT_HASH_TYPE_L3; 2004 skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type); 2005 } 2006 2007 cfa_code = RX_CMP_CFA_CODE(rxcmp1); 2008 skb->protocol = eth_type_trans(skb, bnxt_get_pkt_dev(bp, cfa_code)); 2009 2010 if ((rxcmp1->rx_cmp_flags2 & 2011 cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) && 2012 (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) { 2013 u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data); 2014 u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK; 2015 __be16 vlan_proto = htons(meta_data >> 2016 RX_CMP_FLAGS2_METADATA_TPID_SFT); 2017 2018 if (eth_type_vlan(vlan_proto)) { 2019 __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); 2020 } else { 2021 dev_kfree_skb(skb); 2022 goto next_rx; 2023 } 2024 } 2025 2026 skb_checksum_none_assert(skb); 2027 if (RX_CMP_L4_CS_OK(rxcmp1)) { 2028 if (dev->features & NETIF_F_RXCSUM) { 2029 skb->ip_summed = CHECKSUM_UNNECESSARY; 2030 skb->csum_level = RX_CMP_ENCAP(rxcmp1); 2031 } 2032 } else { 2033 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) { 2034 if (dev->features & NETIF_F_RXCSUM) 2035 bnapi->cp_ring.sw_stats.rx.rx_l4_csum_errors++; 2036 } 2037 } 2038 2039 if (unlikely((flags & RX_CMP_FLAGS_ITYPES_MASK) == 2040 RX_CMP_FLAGS_ITYPE_PTP_W_TS) || bp->ptp_all_rx_tstamp) { 2041 if (bp->flags & BNXT_FLAG_CHIP_P5) { 2042 u32 cmpl_ts = le32_to_cpu(rxcmp1->rx_cmp_timestamp); 2043 u64 ns, ts; 2044 2045 if (!bnxt_get_rx_ts_p5(bp, &ts, cmpl_ts)) { 2046 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 2047 2048 spin_lock_bh(&ptp->ptp_lock); 2049 ns = timecounter_cyc2time(&ptp->tc, ts); 2050 spin_unlock_bh(&ptp->ptp_lock); 2051 memset(skb_hwtstamps(skb), 0, 2052 sizeof(*skb_hwtstamps(skb))); 2053 skb_hwtstamps(skb)->hwtstamp = ns_to_ktime(ns); 2054 } 2055 } 2056 } 2057 bnxt_deliver_skb(bp, bnapi, skb); 2058 rc = 1; 2059 2060 next_rx: 2061 cpr->rx_packets += 1; 2062 cpr->rx_bytes += len; 2063 2064 next_rx_no_len: 2065 rxr->rx_prod = NEXT_RX(prod); 2066 rxr->rx_next_cons = NEXT_RX(cons); 2067 2068 next_rx_no_prod_no_len: 2069 *raw_cons = tmp_raw_cons; 2070 2071 return rc; 2072 } 2073 2074 /* In netpoll mode, if we are using a combined completion ring, we need to 2075 * discard the rx packets and recycle the buffers. 2076 */ 2077 static int bnxt_force_rx_discard(struct bnxt *bp, 2078 struct bnxt_cp_ring_info *cpr, 2079 u32 *raw_cons, u8 *event) 2080 { 2081 u32 tmp_raw_cons = *raw_cons; 2082 struct rx_cmp_ext *rxcmp1; 2083 struct rx_cmp *rxcmp; 2084 u16 cp_cons; 2085 u8 cmp_type; 2086 int rc; 2087 2088 cp_cons = RING_CMP(tmp_raw_cons); 2089 rxcmp = (struct rx_cmp *) 2090 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2091 2092 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); 2093 cp_cons = RING_CMP(tmp_raw_cons); 2094 rxcmp1 = (struct rx_cmp_ext *) 2095 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2096 2097 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 2098 return -EBUSY; 2099 2100 /* The valid test of the entry must be done first before 2101 * reading any further. 2102 */ 2103 dma_rmb(); 2104 cmp_type = RX_CMP_TYPE(rxcmp); 2105 if (cmp_type == CMP_TYPE_RX_L2_CMP) { 2106 rxcmp1->rx_cmp_cfa_code_errors_v2 |= 2107 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); 2108 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 2109 struct rx_tpa_end_cmp_ext *tpa_end1; 2110 2111 tpa_end1 = (struct rx_tpa_end_cmp_ext *)rxcmp1; 2112 tpa_end1->rx_tpa_end_cmp_errors_v2 |= 2113 cpu_to_le32(RX_TPA_END_CMP_ERRORS); 2114 } 2115 rc = bnxt_rx_pkt(bp, cpr, raw_cons, event); 2116 if (rc && rc != -EBUSY) 2117 cpr->sw_stats.rx.rx_netpoll_discards += 1; 2118 return rc; 2119 } 2120 2121 u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx) 2122 { 2123 struct bnxt_fw_health *fw_health = bp->fw_health; 2124 u32 reg = fw_health->regs[reg_idx]; 2125 u32 reg_type, reg_off, val = 0; 2126 2127 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); 2128 reg_off = BNXT_FW_HEALTH_REG_OFF(reg); 2129 switch (reg_type) { 2130 case BNXT_FW_HEALTH_REG_TYPE_CFG: 2131 pci_read_config_dword(bp->pdev, reg_off, &val); 2132 break; 2133 case BNXT_FW_HEALTH_REG_TYPE_GRC: 2134 reg_off = fw_health->mapped_regs[reg_idx]; 2135 fallthrough; 2136 case BNXT_FW_HEALTH_REG_TYPE_BAR0: 2137 val = readl(bp->bar0 + reg_off); 2138 break; 2139 case BNXT_FW_HEALTH_REG_TYPE_BAR1: 2140 val = readl(bp->bar1 + reg_off); 2141 break; 2142 } 2143 if (reg_idx == BNXT_FW_RESET_INPROG_REG) 2144 val &= fw_health->fw_reset_inprog_reg_mask; 2145 return val; 2146 } 2147 2148 static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id) 2149 { 2150 int i; 2151 2152 for (i = 0; i < bp->rx_nr_rings; i++) { 2153 u16 grp_idx = bp->rx_ring[i].bnapi->index; 2154 struct bnxt_ring_grp_info *grp_info; 2155 2156 grp_info = &bp->grp_info[grp_idx]; 2157 if (grp_info->agg_fw_ring_id == ring_id) 2158 return grp_idx; 2159 } 2160 return INVALID_HW_RING_ID; 2161 } 2162 2163 static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2) 2164 { 2165 u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1); 2166 2167 switch (err_type) { 2168 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_INVALID_SIGNAL: 2169 netdev_err(bp->dev, "1PPS: Received invalid signal on pin%lu from the external source. Please fix the signal and reconfigure the pin\n", 2170 BNXT_EVENT_INVALID_SIGNAL_DATA(data2)); 2171 break; 2172 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_PAUSE_STORM: 2173 netdev_warn(bp->dev, "Pause Storm detected!\n"); 2174 break; 2175 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DOORBELL_DROP_THRESHOLD: 2176 netdev_warn(bp->dev, "One or more MMIO doorbells dropped by the device!\n"); 2177 break; 2178 default: 2179 netdev_err(bp->dev, "FW reported unknown error type %u\n", 2180 err_type); 2181 break; 2182 } 2183 } 2184 2185 #define BNXT_GET_EVENT_PORT(data) \ 2186 ((data) & \ 2187 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK) 2188 2189 #define BNXT_EVENT_RING_TYPE(data2) \ 2190 ((data2) & \ 2191 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_MASK) 2192 2193 #define BNXT_EVENT_RING_TYPE_RX(data2) \ 2194 (BNXT_EVENT_RING_TYPE(data2) == \ 2195 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_RX) 2196 2197 #define BNXT_EVENT_PHC_EVENT_TYPE(data1) \ 2198 (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_MASK) >>\ 2199 ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_SFT) 2200 2201 #define BNXT_EVENT_PHC_RTC_UPDATE(data1) \ 2202 (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_MASK) >>\ 2203 ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_SFT) 2204 2205 #define BNXT_PHC_BITS 48 2206 2207 static int bnxt_async_event_process(struct bnxt *bp, 2208 struct hwrm_async_event_cmpl *cmpl) 2209 { 2210 u16 event_id = le16_to_cpu(cmpl->event_id); 2211 u32 data1 = le32_to_cpu(cmpl->event_data1); 2212 u32 data2 = le32_to_cpu(cmpl->event_data2); 2213 2214 netdev_dbg(bp->dev, "hwrm event 0x%x {0x%x, 0x%x}\n", 2215 event_id, data1, data2); 2216 2217 /* TODO CHIMP_FW: Define event id's for link change, error etc */ 2218 switch (event_id) { 2219 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { 2220 struct bnxt_link_info *link_info = &bp->link_info; 2221 2222 if (BNXT_VF(bp)) 2223 goto async_event_process_exit; 2224 2225 /* print unsupported speed warning in forced speed mode only */ 2226 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) && 2227 (data1 & 0x20000)) { 2228 u16 fw_speed = link_info->force_link_speed; 2229 u32 speed = bnxt_fw_to_ethtool_speed(fw_speed); 2230 2231 if (speed != SPEED_UNKNOWN) 2232 netdev_warn(bp->dev, "Link speed %d no longer supported\n", 2233 speed); 2234 } 2235 set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event); 2236 } 2237 fallthrough; 2238 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE: 2239 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE: 2240 set_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event); 2241 fallthrough; 2242 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: 2243 set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event); 2244 break; 2245 case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD: 2246 set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event); 2247 break; 2248 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: { 2249 u16 port_id = BNXT_GET_EVENT_PORT(data1); 2250 2251 if (BNXT_VF(bp)) 2252 break; 2253 2254 if (bp->pf.port_id != port_id) 2255 break; 2256 2257 set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event); 2258 break; 2259 } 2260 case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE: 2261 if (BNXT_PF(bp)) 2262 goto async_event_process_exit; 2263 set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event); 2264 break; 2265 case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY: { 2266 char *type_str = "Solicited"; 2267 2268 if (!bp->fw_health) 2269 goto async_event_process_exit; 2270 2271 bp->fw_reset_timestamp = jiffies; 2272 bp->fw_reset_min_dsecs = cmpl->timestamp_lo; 2273 if (!bp->fw_reset_min_dsecs) 2274 bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS; 2275 bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi); 2276 if (!bp->fw_reset_max_dsecs) 2277 bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS; 2278 if (EVENT_DATA1_RESET_NOTIFY_FW_ACTIVATION(data1)) { 2279 set_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state); 2280 } else if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) { 2281 type_str = "Fatal"; 2282 bp->fw_health->fatalities++; 2283 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 2284 } else if (data2 && BNXT_FW_STATUS_HEALTHY != 2285 EVENT_DATA2_RESET_NOTIFY_FW_STATUS_CODE(data2)) { 2286 type_str = "Non-fatal"; 2287 bp->fw_health->survivals++; 2288 set_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); 2289 } 2290 netif_warn(bp, hw, bp->dev, 2291 "%s firmware reset event, data1: 0x%x, data2: 0x%x, min wait %u ms, max wait %u ms\n", 2292 type_str, data1, data2, 2293 bp->fw_reset_min_dsecs * 100, 2294 bp->fw_reset_max_dsecs * 100); 2295 set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event); 2296 break; 2297 } 2298 case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: { 2299 struct bnxt_fw_health *fw_health = bp->fw_health; 2300 char *status_desc = "healthy"; 2301 u32 status; 2302 2303 if (!fw_health) 2304 goto async_event_process_exit; 2305 2306 if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) { 2307 fw_health->enabled = false; 2308 netif_info(bp, drv, bp->dev, "Driver recovery watchdog is disabled\n"); 2309 break; 2310 } 2311 fw_health->primary = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1); 2312 fw_health->tmr_multiplier = 2313 DIV_ROUND_UP(fw_health->polling_dsecs * HZ, 2314 bp->current_interval * 10); 2315 fw_health->tmr_counter = fw_health->tmr_multiplier; 2316 if (!fw_health->enabled) 2317 fw_health->last_fw_heartbeat = 2318 bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 2319 fw_health->last_fw_reset_cnt = 2320 bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 2321 status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 2322 if (status != BNXT_FW_STATUS_HEALTHY) 2323 status_desc = "unhealthy"; 2324 netif_info(bp, drv, bp->dev, 2325 "Driver recovery watchdog, role: %s, firmware status: 0x%x (%s), resets: %u\n", 2326 fw_health->primary ? "primary" : "backup", status, 2327 status_desc, fw_health->last_fw_reset_cnt); 2328 if (!fw_health->enabled) { 2329 /* Make sure tmr_counter is set and visible to 2330 * bnxt_health_check() before setting enabled to true. 2331 */ 2332 smp_wmb(); 2333 fw_health->enabled = true; 2334 } 2335 goto async_event_process_exit; 2336 } 2337 case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION: 2338 netif_notice(bp, hw, bp->dev, 2339 "Received firmware debug notification, data1: 0x%x, data2: 0x%x\n", 2340 data1, data2); 2341 goto async_event_process_exit; 2342 case ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG: { 2343 struct bnxt_rx_ring_info *rxr; 2344 u16 grp_idx; 2345 2346 if (bp->flags & BNXT_FLAG_CHIP_P5) 2347 goto async_event_process_exit; 2348 2349 netdev_warn(bp->dev, "Ring monitor event, ring type %lu id 0x%x\n", 2350 BNXT_EVENT_RING_TYPE(data2), data1); 2351 if (!BNXT_EVENT_RING_TYPE_RX(data2)) 2352 goto async_event_process_exit; 2353 2354 grp_idx = bnxt_agg_ring_id_to_grp_idx(bp, data1); 2355 if (grp_idx == INVALID_HW_RING_ID) { 2356 netdev_warn(bp->dev, "Unknown RX agg ring id 0x%x\n", 2357 data1); 2358 goto async_event_process_exit; 2359 } 2360 rxr = bp->bnapi[grp_idx]->rx_ring; 2361 bnxt_sched_reset(bp, rxr); 2362 goto async_event_process_exit; 2363 } 2364 case ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST: { 2365 struct bnxt_fw_health *fw_health = bp->fw_health; 2366 2367 netif_notice(bp, hw, bp->dev, 2368 "Received firmware echo request, data1: 0x%x, data2: 0x%x\n", 2369 data1, data2); 2370 if (fw_health) { 2371 fw_health->echo_req_data1 = data1; 2372 fw_health->echo_req_data2 = data2; 2373 set_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event); 2374 break; 2375 } 2376 goto async_event_process_exit; 2377 } 2378 case ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP: { 2379 bnxt_ptp_pps_event(bp, data1, data2); 2380 goto async_event_process_exit; 2381 } 2382 case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT: { 2383 bnxt_event_error_report(bp, data1, data2); 2384 goto async_event_process_exit; 2385 } 2386 case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: { 2387 switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) { 2388 case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE: 2389 if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) { 2390 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 2391 u64 ns; 2392 2393 spin_lock_bh(&ptp->ptp_lock); 2394 bnxt_ptp_update_current_time(bp); 2395 ns = (((u64)BNXT_EVENT_PHC_RTC_UPDATE(data1) << 2396 BNXT_PHC_BITS) | ptp->current_time); 2397 bnxt_ptp_rtc_timecounter_init(ptp, ns); 2398 spin_unlock_bh(&ptp->ptp_lock); 2399 } 2400 break; 2401 } 2402 goto async_event_process_exit; 2403 } 2404 case ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE: { 2405 u16 seq_id = le32_to_cpu(cmpl->event_data2) & 0xffff; 2406 2407 hwrm_update_token(bp, seq_id, BNXT_HWRM_DEFERRED); 2408 goto async_event_process_exit; 2409 } 2410 default: 2411 goto async_event_process_exit; 2412 } 2413 bnxt_queue_sp_work(bp); 2414 async_event_process_exit: 2415 bnxt_ulp_async_events(bp, cmpl); 2416 return 0; 2417 } 2418 2419 static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp) 2420 { 2421 u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id; 2422 struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp; 2423 struct hwrm_fwd_req_cmpl *fwd_req_cmpl = 2424 (struct hwrm_fwd_req_cmpl *)txcmp; 2425 2426 switch (cmpl_type) { 2427 case CMPL_BASE_TYPE_HWRM_DONE: 2428 seq_id = le16_to_cpu(h_cmpl->sequence_id); 2429 hwrm_update_token(bp, seq_id, BNXT_HWRM_COMPLETE); 2430 break; 2431 2432 case CMPL_BASE_TYPE_HWRM_FWD_REQ: 2433 vf_id = le16_to_cpu(fwd_req_cmpl->source_id); 2434 2435 if ((vf_id < bp->pf.first_vf_id) || 2436 (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) { 2437 netdev_err(bp->dev, "Msg contains invalid VF id %x\n", 2438 vf_id); 2439 return -EINVAL; 2440 } 2441 2442 set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap); 2443 set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event); 2444 bnxt_queue_sp_work(bp); 2445 break; 2446 2447 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: 2448 bnxt_async_event_process(bp, 2449 (struct hwrm_async_event_cmpl *)txcmp); 2450 break; 2451 2452 default: 2453 break; 2454 } 2455 2456 return 0; 2457 } 2458 2459 static irqreturn_t bnxt_msix(int irq, void *dev_instance) 2460 { 2461 struct bnxt_napi *bnapi = dev_instance; 2462 struct bnxt *bp = bnapi->bp; 2463 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2464 u32 cons = RING_CMP(cpr->cp_raw_cons); 2465 2466 cpr->event_ctr++; 2467 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); 2468 napi_schedule(&bnapi->napi); 2469 return IRQ_HANDLED; 2470 } 2471 2472 static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr) 2473 { 2474 u32 raw_cons = cpr->cp_raw_cons; 2475 u16 cons = RING_CMP(raw_cons); 2476 struct tx_cmp *txcmp; 2477 2478 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 2479 2480 return TX_CMP_VALID(txcmp, raw_cons); 2481 } 2482 2483 static irqreturn_t bnxt_inta(int irq, void *dev_instance) 2484 { 2485 struct bnxt_napi *bnapi = dev_instance; 2486 struct bnxt *bp = bnapi->bp; 2487 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2488 u32 cons = RING_CMP(cpr->cp_raw_cons); 2489 u32 int_status; 2490 2491 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); 2492 2493 if (!bnxt_has_work(bp, cpr)) { 2494 int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS); 2495 /* return if erroneous interrupt */ 2496 if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id))) 2497 return IRQ_NONE; 2498 } 2499 2500 /* disable ring IRQ */ 2501 BNXT_CP_DB_IRQ_DIS(cpr->cp_db.doorbell); 2502 2503 /* Return here if interrupt is shared and is disabled. */ 2504 if (unlikely(atomic_read(&bp->intr_sem) != 0)) 2505 return IRQ_HANDLED; 2506 2507 napi_schedule(&bnapi->napi); 2508 return IRQ_HANDLED; 2509 } 2510 2511 static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 2512 int budget) 2513 { 2514 struct bnxt_napi *bnapi = cpr->bnapi; 2515 u32 raw_cons = cpr->cp_raw_cons; 2516 u32 cons; 2517 int tx_pkts = 0; 2518 int rx_pkts = 0; 2519 u8 event = 0; 2520 struct tx_cmp *txcmp; 2521 2522 cpr->has_more_work = 0; 2523 cpr->had_work_done = 1; 2524 while (1) { 2525 int rc; 2526 2527 cons = RING_CMP(raw_cons); 2528 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 2529 2530 if (!TX_CMP_VALID(txcmp, raw_cons)) 2531 break; 2532 2533 /* The valid test of the entry must be done first before 2534 * reading any further. 2535 */ 2536 dma_rmb(); 2537 if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) { 2538 tx_pkts++; 2539 /* return full budget so NAPI will complete. */ 2540 if (unlikely(tx_pkts >= bp->tx_wake_thresh)) { 2541 rx_pkts = budget; 2542 raw_cons = NEXT_RAW_CMP(raw_cons); 2543 if (budget) 2544 cpr->has_more_work = 1; 2545 break; 2546 } 2547 } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { 2548 if (likely(budget)) 2549 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); 2550 else 2551 rc = bnxt_force_rx_discard(bp, cpr, &raw_cons, 2552 &event); 2553 if (likely(rc >= 0)) 2554 rx_pkts += rc; 2555 /* Increment rx_pkts when rc is -ENOMEM to count towards 2556 * the NAPI budget. Otherwise, we may potentially loop 2557 * here forever if we consistently cannot allocate 2558 * buffers. 2559 */ 2560 else if (rc == -ENOMEM && budget) 2561 rx_pkts++; 2562 else if (rc == -EBUSY) /* partial completion */ 2563 break; 2564 } else if (unlikely((TX_CMP_TYPE(txcmp) == 2565 CMPL_BASE_TYPE_HWRM_DONE) || 2566 (TX_CMP_TYPE(txcmp) == 2567 CMPL_BASE_TYPE_HWRM_FWD_REQ) || 2568 (TX_CMP_TYPE(txcmp) == 2569 CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) { 2570 bnxt_hwrm_handler(bp, txcmp); 2571 } 2572 raw_cons = NEXT_RAW_CMP(raw_cons); 2573 2574 if (rx_pkts && rx_pkts == budget) { 2575 cpr->has_more_work = 1; 2576 break; 2577 } 2578 } 2579 2580 if (event & BNXT_REDIRECT_EVENT) 2581 xdp_do_flush(); 2582 2583 if (event & BNXT_TX_EVENT) { 2584 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 2585 u16 prod = txr->tx_prod; 2586 2587 /* Sync BD data before updating doorbell */ 2588 wmb(); 2589 2590 bnxt_db_write_relaxed(bp, &txr->tx_db, prod); 2591 } 2592 2593 cpr->cp_raw_cons = raw_cons; 2594 bnapi->tx_pkts += tx_pkts; 2595 bnapi->events |= event; 2596 return rx_pkts; 2597 } 2598 2599 static void __bnxt_poll_work_done(struct bnxt *bp, struct bnxt_napi *bnapi) 2600 { 2601 if (bnapi->tx_pkts) { 2602 bnapi->tx_int(bp, bnapi, bnapi->tx_pkts); 2603 bnapi->tx_pkts = 0; 2604 } 2605 2606 if ((bnapi->events & BNXT_RX_EVENT) && !(bnapi->in_reset)) { 2607 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 2608 2609 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 2610 } 2611 if (bnapi->events & BNXT_AGG_EVENT) { 2612 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 2613 2614 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 2615 } 2616 bnapi->events = 0; 2617 } 2618 2619 static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 2620 int budget) 2621 { 2622 struct bnxt_napi *bnapi = cpr->bnapi; 2623 int rx_pkts; 2624 2625 rx_pkts = __bnxt_poll_work(bp, cpr, budget); 2626 2627 /* ACK completion ring before freeing tx ring and producing new 2628 * buffers in rx/agg rings to prevent overflowing the completion 2629 * ring. 2630 */ 2631 bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons); 2632 2633 __bnxt_poll_work_done(bp, bnapi); 2634 return rx_pkts; 2635 } 2636 2637 static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget) 2638 { 2639 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 2640 struct bnxt *bp = bnapi->bp; 2641 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2642 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 2643 struct tx_cmp *txcmp; 2644 struct rx_cmp_ext *rxcmp1; 2645 u32 cp_cons, tmp_raw_cons; 2646 u32 raw_cons = cpr->cp_raw_cons; 2647 u32 rx_pkts = 0; 2648 u8 event = 0; 2649 2650 while (1) { 2651 int rc; 2652 2653 cp_cons = RING_CMP(raw_cons); 2654 txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2655 2656 if (!TX_CMP_VALID(txcmp, raw_cons)) 2657 break; 2658 2659 /* The valid test of the entry must be done first before 2660 * reading any further. 2661 */ 2662 dma_rmb(); 2663 if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { 2664 tmp_raw_cons = NEXT_RAW_CMP(raw_cons); 2665 cp_cons = RING_CMP(tmp_raw_cons); 2666 rxcmp1 = (struct rx_cmp_ext *) 2667 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2668 2669 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 2670 break; 2671 2672 /* force an error to recycle the buffer */ 2673 rxcmp1->rx_cmp_cfa_code_errors_v2 |= 2674 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); 2675 2676 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); 2677 if (likely(rc == -EIO) && budget) 2678 rx_pkts++; 2679 else if (rc == -EBUSY) /* partial completion */ 2680 break; 2681 } else if (unlikely(TX_CMP_TYPE(txcmp) == 2682 CMPL_BASE_TYPE_HWRM_DONE)) { 2683 bnxt_hwrm_handler(bp, txcmp); 2684 } else { 2685 netdev_err(bp->dev, 2686 "Invalid completion received on special ring\n"); 2687 } 2688 raw_cons = NEXT_RAW_CMP(raw_cons); 2689 2690 if (rx_pkts == budget) 2691 break; 2692 } 2693 2694 cpr->cp_raw_cons = raw_cons; 2695 BNXT_DB_CQ(&cpr->cp_db, cpr->cp_raw_cons); 2696 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 2697 2698 if (event & BNXT_AGG_EVENT) 2699 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 2700 2701 if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) { 2702 napi_complete_done(napi, rx_pkts); 2703 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 2704 } 2705 return rx_pkts; 2706 } 2707 2708 static int bnxt_poll(struct napi_struct *napi, int budget) 2709 { 2710 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 2711 struct bnxt *bp = bnapi->bp; 2712 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2713 int work_done = 0; 2714 2715 if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { 2716 napi_complete(napi); 2717 return 0; 2718 } 2719 while (1) { 2720 work_done += bnxt_poll_work(bp, cpr, budget - work_done); 2721 2722 if (work_done >= budget) { 2723 if (!budget) 2724 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 2725 break; 2726 } 2727 2728 if (!bnxt_has_work(bp, cpr)) { 2729 if (napi_complete_done(napi, work_done)) 2730 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 2731 break; 2732 } 2733 } 2734 if (bp->flags & BNXT_FLAG_DIM) { 2735 struct dim_sample dim_sample = {}; 2736 2737 dim_update_sample(cpr->event_ctr, 2738 cpr->rx_packets, 2739 cpr->rx_bytes, 2740 &dim_sample); 2741 net_dim(&cpr->dim, dim_sample); 2742 } 2743 return work_done; 2744 } 2745 2746 static int __bnxt_poll_cqs(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) 2747 { 2748 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2749 int i, work_done = 0; 2750 2751 for (i = 0; i < 2; i++) { 2752 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i]; 2753 2754 if (cpr2) { 2755 work_done += __bnxt_poll_work(bp, cpr2, 2756 budget - work_done); 2757 cpr->has_more_work |= cpr2->has_more_work; 2758 } 2759 } 2760 return work_done; 2761 } 2762 2763 static void __bnxt_poll_cqs_done(struct bnxt *bp, struct bnxt_napi *bnapi, 2764 u64 dbr_type) 2765 { 2766 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2767 int i; 2768 2769 for (i = 0; i < 2; i++) { 2770 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i]; 2771 struct bnxt_db_info *db; 2772 2773 if (cpr2 && cpr2->had_work_done) { 2774 db = &cpr2->cp_db; 2775 bnxt_writeq(bp, db->db_key64 | dbr_type | 2776 RING_CMP(cpr2->cp_raw_cons), db->doorbell); 2777 cpr2->had_work_done = 0; 2778 } 2779 } 2780 __bnxt_poll_work_done(bp, bnapi); 2781 } 2782 2783 static int bnxt_poll_p5(struct napi_struct *napi, int budget) 2784 { 2785 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 2786 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2787 struct bnxt_cp_ring_info *cpr_rx; 2788 u32 raw_cons = cpr->cp_raw_cons; 2789 struct bnxt *bp = bnapi->bp; 2790 struct nqe_cn *nqcmp; 2791 int work_done = 0; 2792 u32 cons; 2793 2794 if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { 2795 napi_complete(napi); 2796 return 0; 2797 } 2798 if (cpr->has_more_work) { 2799 cpr->has_more_work = 0; 2800 work_done = __bnxt_poll_cqs(bp, bnapi, budget); 2801 } 2802 while (1) { 2803 cons = RING_CMP(raw_cons); 2804 nqcmp = &cpr->nq_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 2805 2806 if (!NQ_CMP_VALID(nqcmp, raw_cons)) { 2807 if (cpr->has_more_work) 2808 break; 2809 2810 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ_ARMALL); 2811 cpr->cp_raw_cons = raw_cons; 2812 if (napi_complete_done(napi, work_done)) 2813 BNXT_DB_NQ_ARM_P5(&cpr->cp_db, 2814 cpr->cp_raw_cons); 2815 goto poll_done; 2816 } 2817 2818 /* The valid test of the entry must be done first before 2819 * reading any further. 2820 */ 2821 dma_rmb(); 2822 2823 if (nqcmp->type == cpu_to_le16(NQ_CN_TYPE_CQ_NOTIFICATION)) { 2824 u32 idx = le32_to_cpu(nqcmp->cq_handle_low); 2825 struct bnxt_cp_ring_info *cpr2; 2826 2827 /* No more budget for RX work */ 2828 if (budget && work_done >= budget && idx == BNXT_RX_HDL) 2829 break; 2830 2831 cpr2 = cpr->cp_ring_arr[idx]; 2832 work_done += __bnxt_poll_work(bp, cpr2, 2833 budget - work_done); 2834 cpr->has_more_work |= cpr2->has_more_work; 2835 } else { 2836 bnxt_hwrm_handler(bp, (struct tx_cmp *)nqcmp); 2837 } 2838 raw_cons = NEXT_RAW_CMP(raw_cons); 2839 } 2840 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ); 2841 if (raw_cons != cpr->cp_raw_cons) { 2842 cpr->cp_raw_cons = raw_cons; 2843 BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons); 2844 } 2845 poll_done: 2846 cpr_rx = cpr->cp_ring_arr[BNXT_RX_HDL]; 2847 if (cpr_rx && (bp->flags & BNXT_FLAG_DIM)) { 2848 struct dim_sample dim_sample = {}; 2849 2850 dim_update_sample(cpr->event_ctr, 2851 cpr_rx->rx_packets, 2852 cpr_rx->rx_bytes, 2853 &dim_sample); 2854 net_dim(&cpr->dim, dim_sample); 2855 } 2856 return work_done; 2857 } 2858 2859 static void bnxt_free_tx_skbs(struct bnxt *bp) 2860 { 2861 int i, max_idx; 2862 struct pci_dev *pdev = bp->pdev; 2863 2864 if (!bp->tx_ring) 2865 return; 2866 2867 max_idx = bp->tx_nr_pages * TX_DESC_CNT; 2868 for (i = 0; i < bp->tx_nr_rings; i++) { 2869 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 2870 int j; 2871 2872 if (!txr->tx_buf_ring) 2873 continue; 2874 2875 for (j = 0; j < max_idx;) { 2876 struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j]; 2877 struct sk_buff *skb; 2878 int k, last; 2879 2880 if (i < bp->tx_nr_rings_xdp && 2881 tx_buf->action == XDP_REDIRECT) { 2882 dma_unmap_single(&pdev->dev, 2883 dma_unmap_addr(tx_buf, mapping), 2884 dma_unmap_len(tx_buf, len), 2885 DMA_TO_DEVICE); 2886 xdp_return_frame(tx_buf->xdpf); 2887 tx_buf->action = 0; 2888 tx_buf->xdpf = NULL; 2889 j++; 2890 continue; 2891 } 2892 2893 skb = tx_buf->skb; 2894 if (!skb) { 2895 j++; 2896 continue; 2897 } 2898 2899 tx_buf->skb = NULL; 2900 2901 if (tx_buf->is_push) { 2902 dev_kfree_skb(skb); 2903 j += 2; 2904 continue; 2905 } 2906 2907 dma_unmap_single(&pdev->dev, 2908 dma_unmap_addr(tx_buf, mapping), 2909 skb_headlen(skb), 2910 DMA_TO_DEVICE); 2911 2912 last = tx_buf->nr_frags; 2913 j += 2; 2914 for (k = 0; k < last; k++, j++) { 2915 int ring_idx = j & bp->tx_ring_mask; 2916 skb_frag_t *frag = &skb_shinfo(skb)->frags[k]; 2917 2918 tx_buf = &txr->tx_buf_ring[ring_idx]; 2919 dma_unmap_page( 2920 &pdev->dev, 2921 dma_unmap_addr(tx_buf, mapping), 2922 skb_frag_size(frag), DMA_TO_DEVICE); 2923 } 2924 dev_kfree_skb(skb); 2925 } 2926 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i)); 2927 } 2928 } 2929 2930 static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr) 2931 { 2932 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; 2933 struct pci_dev *pdev = bp->pdev; 2934 struct bnxt_tpa_idx_map *map; 2935 int i, max_idx, max_agg_idx; 2936 2937 max_idx = bp->rx_nr_pages * RX_DESC_CNT; 2938 max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT; 2939 if (!rxr->rx_tpa) 2940 goto skip_rx_tpa_free; 2941 2942 for (i = 0; i < bp->max_tpa; i++) { 2943 struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[i]; 2944 u8 *data = tpa_info->data; 2945 2946 if (!data) 2947 continue; 2948 2949 dma_unmap_single_attrs(&pdev->dev, tpa_info->mapping, 2950 bp->rx_buf_use_size, bp->rx_dir, 2951 DMA_ATTR_WEAK_ORDERING); 2952 2953 tpa_info->data = NULL; 2954 2955 skb_free_frag(data); 2956 } 2957 2958 skip_rx_tpa_free: 2959 if (!rxr->rx_buf_ring) 2960 goto skip_rx_buf_free; 2961 2962 for (i = 0; i < max_idx; i++) { 2963 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i]; 2964 dma_addr_t mapping = rx_buf->mapping; 2965 void *data = rx_buf->data; 2966 2967 if (!data) 2968 continue; 2969 2970 rx_buf->data = NULL; 2971 if (BNXT_RX_PAGE_MODE(bp)) { 2972 mapping -= bp->rx_dma_offset; 2973 dma_unmap_page_attrs(&pdev->dev, mapping, PAGE_SIZE, 2974 bp->rx_dir, 2975 DMA_ATTR_WEAK_ORDERING); 2976 page_pool_recycle_direct(rxr->page_pool, data); 2977 } else { 2978 dma_unmap_single_attrs(&pdev->dev, mapping, 2979 bp->rx_buf_use_size, bp->rx_dir, 2980 DMA_ATTR_WEAK_ORDERING); 2981 skb_free_frag(data); 2982 } 2983 } 2984 2985 skip_rx_buf_free: 2986 if (!rxr->rx_agg_ring) 2987 goto skip_rx_agg_free; 2988 2989 for (i = 0; i < max_agg_idx; i++) { 2990 struct bnxt_sw_rx_agg_bd *rx_agg_buf = &rxr->rx_agg_ring[i]; 2991 struct page *page = rx_agg_buf->page; 2992 2993 if (!page) 2994 continue; 2995 2996 if (BNXT_RX_PAGE_MODE(bp)) { 2997 dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, 2998 BNXT_RX_PAGE_SIZE, bp->rx_dir, 2999 DMA_ATTR_WEAK_ORDERING); 3000 rx_agg_buf->page = NULL; 3001 __clear_bit(i, rxr->rx_agg_bmap); 3002 3003 page_pool_recycle_direct(rxr->page_pool, page); 3004 } else { 3005 dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, 3006 BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, 3007 DMA_ATTR_WEAK_ORDERING); 3008 rx_agg_buf->page = NULL; 3009 __clear_bit(i, rxr->rx_agg_bmap); 3010 3011 __free_page(page); 3012 } 3013 } 3014 3015 skip_rx_agg_free: 3016 if (rxr->rx_page) { 3017 __free_page(rxr->rx_page); 3018 rxr->rx_page = NULL; 3019 } 3020 map = rxr->rx_tpa_idx_map; 3021 if (map) 3022 memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap)); 3023 } 3024 3025 static void bnxt_free_rx_skbs(struct bnxt *bp) 3026 { 3027 int i; 3028 3029 if (!bp->rx_ring) 3030 return; 3031 3032 for (i = 0; i < bp->rx_nr_rings; i++) 3033 bnxt_free_one_rx_ring_skbs(bp, i); 3034 } 3035 3036 static void bnxt_free_skbs(struct bnxt *bp) 3037 { 3038 bnxt_free_tx_skbs(bp); 3039 bnxt_free_rx_skbs(bp); 3040 } 3041 3042 static void bnxt_init_ctx_mem(struct bnxt_mem_init *mem_init, void *p, int len) 3043 { 3044 u8 init_val = mem_init->init_val; 3045 u16 offset = mem_init->offset; 3046 u8 *p2 = p; 3047 int i; 3048 3049 if (!init_val) 3050 return; 3051 if (offset == BNXT_MEM_INVALID_OFFSET) { 3052 memset(p, init_val, len); 3053 return; 3054 } 3055 for (i = 0; i < len; i += mem_init->size) 3056 *(p2 + i + offset) = init_val; 3057 } 3058 3059 static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) 3060 { 3061 struct pci_dev *pdev = bp->pdev; 3062 int i; 3063 3064 if (!rmem->pg_arr) 3065 goto skip_pages; 3066 3067 for (i = 0; i < rmem->nr_pages; i++) { 3068 if (!rmem->pg_arr[i]) 3069 continue; 3070 3071 dma_free_coherent(&pdev->dev, rmem->page_size, 3072 rmem->pg_arr[i], rmem->dma_arr[i]); 3073 3074 rmem->pg_arr[i] = NULL; 3075 } 3076 skip_pages: 3077 if (rmem->pg_tbl) { 3078 size_t pg_tbl_size = rmem->nr_pages * 8; 3079 3080 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) 3081 pg_tbl_size = rmem->page_size; 3082 dma_free_coherent(&pdev->dev, pg_tbl_size, 3083 rmem->pg_tbl, rmem->pg_tbl_map); 3084 rmem->pg_tbl = NULL; 3085 } 3086 if (rmem->vmem_size && *rmem->vmem) { 3087 vfree(*rmem->vmem); 3088 *rmem->vmem = NULL; 3089 } 3090 } 3091 3092 static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) 3093 { 3094 struct pci_dev *pdev = bp->pdev; 3095 u64 valid_bit = 0; 3096 int i; 3097 3098 if (rmem->flags & (BNXT_RMEM_VALID_PTE_FLAG | BNXT_RMEM_RING_PTE_FLAG)) 3099 valid_bit = PTU_PTE_VALID; 3100 if ((rmem->nr_pages > 1 || rmem->depth > 0) && !rmem->pg_tbl) { 3101 size_t pg_tbl_size = rmem->nr_pages * 8; 3102 3103 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) 3104 pg_tbl_size = rmem->page_size; 3105 rmem->pg_tbl = dma_alloc_coherent(&pdev->dev, pg_tbl_size, 3106 &rmem->pg_tbl_map, 3107 GFP_KERNEL); 3108 if (!rmem->pg_tbl) 3109 return -ENOMEM; 3110 } 3111 3112 for (i = 0; i < rmem->nr_pages; i++) { 3113 u64 extra_bits = valid_bit; 3114 3115 rmem->pg_arr[i] = dma_alloc_coherent(&pdev->dev, 3116 rmem->page_size, 3117 &rmem->dma_arr[i], 3118 GFP_KERNEL); 3119 if (!rmem->pg_arr[i]) 3120 return -ENOMEM; 3121 3122 if (rmem->mem_init) 3123 bnxt_init_ctx_mem(rmem->mem_init, rmem->pg_arr[i], 3124 rmem->page_size); 3125 if (rmem->nr_pages > 1 || rmem->depth > 0) { 3126 if (i == rmem->nr_pages - 2 && 3127 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) 3128 extra_bits |= PTU_PTE_NEXT_TO_LAST; 3129 else if (i == rmem->nr_pages - 1 && 3130 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) 3131 extra_bits |= PTU_PTE_LAST; 3132 rmem->pg_tbl[i] = 3133 cpu_to_le64(rmem->dma_arr[i] | extra_bits); 3134 } 3135 } 3136 3137 if (rmem->vmem_size) { 3138 *rmem->vmem = vzalloc(rmem->vmem_size); 3139 if (!(*rmem->vmem)) 3140 return -ENOMEM; 3141 } 3142 return 0; 3143 } 3144 3145 static void bnxt_free_tpa_info(struct bnxt *bp) 3146 { 3147 int i; 3148 3149 for (i = 0; i < bp->rx_nr_rings; i++) { 3150 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3151 3152 kfree(rxr->rx_tpa_idx_map); 3153 rxr->rx_tpa_idx_map = NULL; 3154 if (rxr->rx_tpa) { 3155 kfree(rxr->rx_tpa[0].agg_arr); 3156 rxr->rx_tpa[0].agg_arr = NULL; 3157 } 3158 kfree(rxr->rx_tpa); 3159 rxr->rx_tpa = NULL; 3160 } 3161 } 3162 3163 static int bnxt_alloc_tpa_info(struct bnxt *bp) 3164 { 3165 int i, j, total_aggs = 0; 3166 3167 bp->max_tpa = MAX_TPA; 3168 if (bp->flags & BNXT_FLAG_CHIP_P5) { 3169 if (!bp->max_tpa_v2) 3170 return 0; 3171 bp->max_tpa = max_t(u16, bp->max_tpa_v2, MAX_TPA_P5); 3172 total_aggs = bp->max_tpa * MAX_SKB_FRAGS; 3173 } 3174 3175 for (i = 0; i < bp->rx_nr_rings; i++) { 3176 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3177 struct rx_agg_cmp *agg; 3178 3179 rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info), 3180 GFP_KERNEL); 3181 if (!rxr->rx_tpa) 3182 return -ENOMEM; 3183 3184 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 3185 continue; 3186 agg = kcalloc(total_aggs, sizeof(*agg), GFP_KERNEL); 3187 rxr->rx_tpa[0].agg_arr = agg; 3188 if (!agg) 3189 return -ENOMEM; 3190 for (j = 1; j < bp->max_tpa; j++) 3191 rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS; 3192 rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map), 3193 GFP_KERNEL); 3194 if (!rxr->rx_tpa_idx_map) 3195 return -ENOMEM; 3196 } 3197 return 0; 3198 } 3199 3200 static void bnxt_free_rx_rings(struct bnxt *bp) 3201 { 3202 int i; 3203 3204 if (!bp->rx_ring) 3205 return; 3206 3207 bnxt_free_tpa_info(bp); 3208 for (i = 0; i < bp->rx_nr_rings; i++) { 3209 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3210 struct bnxt_ring_struct *ring; 3211 3212 if (rxr->xdp_prog) 3213 bpf_prog_put(rxr->xdp_prog); 3214 3215 if (xdp_rxq_info_is_reg(&rxr->xdp_rxq)) 3216 xdp_rxq_info_unreg(&rxr->xdp_rxq); 3217 3218 page_pool_destroy(rxr->page_pool); 3219 rxr->page_pool = NULL; 3220 3221 kfree(rxr->rx_agg_bmap); 3222 rxr->rx_agg_bmap = NULL; 3223 3224 ring = &rxr->rx_ring_struct; 3225 bnxt_free_ring(bp, &ring->ring_mem); 3226 3227 ring = &rxr->rx_agg_ring_struct; 3228 bnxt_free_ring(bp, &ring->ring_mem); 3229 } 3230 } 3231 3232 static int bnxt_alloc_rx_page_pool(struct bnxt *bp, 3233 struct bnxt_rx_ring_info *rxr) 3234 { 3235 struct page_pool_params pp = { 0 }; 3236 3237 pp.pool_size = bp->rx_ring_size; 3238 pp.nid = dev_to_node(&bp->pdev->dev); 3239 pp.dev = &bp->pdev->dev; 3240 pp.dma_dir = DMA_BIDIRECTIONAL; 3241 3242 rxr->page_pool = page_pool_create(&pp); 3243 if (IS_ERR(rxr->page_pool)) { 3244 int err = PTR_ERR(rxr->page_pool); 3245 3246 rxr->page_pool = NULL; 3247 return err; 3248 } 3249 return 0; 3250 } 3251 3252 static int bnxt_alloc_rx_rings(struct bnxt *bp) 3253 { 3254 int i, rc = 0, agg_rings = 0; 3255 3256 if (!bp->rx_ring) 3257 return -ENOMEM; 3258 3259 if (bp->flags & BNXT_FLAG_AGG_RINGS) 3260 agg_rings = 1; 3261 3262 for (i = 0; i < bp->rx_nr_rings; i++) { 3263 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3264 struct bnxt_ring_struct *ring; 3265 3266 ring = &rxr->rx_ring_struct; 3267 3268 rc = bnxt_alloc_rx_page_pool(bp, rxr); 3269 if (rc) 3270 return rc; 3271 3272 rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i, 0); 3273 if (rc < 0) 3274 return rc; 3275 3276 rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq, 3277 MEM_TYPE_PAGE_POOL, 3278 rxr->page_pool); 3279 if (rc) { 3280 xdp_rxq_info_unreg(&rxr->xdp_rxq); 3281 return rc; 3282 } 3283 3284 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 3285 if (rc) 3286 return rc; 3287 3288 ring->grp_idx = i; 3289 if (agg_rings) { 3290 u16 mem_size; 3291 3292 ring = &rxr->rx_agg_ring_struct; 3293 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 3294 if (rc) 3295 return rc; 3296 3297 ring->grp_idx = i; 3298 rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1; 3299 mem_size = rxr->rx_agg_bmap_size / 8; 3300 rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL); 3301 if (!rxr->rx_agg_bmap) 3302 return -ENOMEM; 3303 } 3304 } 3305 if (bp->flags & BNXT_FLAG_TPA) 3306 rc = bnxt_alloc_tpa_info(bp); 3307 return rc; 3308 } 3309 3310 static void bnxt_free_tx_rings(struct bnxt *bp) 3311 { 3312 int i; 3313 struct pci_dev *pdev = bp->pdev; 3314 3315 if (!bp->tx_ring) 3316 return; 3317 3318 for (i = 0; i < bp->tx_nr_rings; i++) { 3319 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 3320 struct bnxt_ring_struct *ring; 3321 3322 if (txr->tx_push) { 3323 dma_free_coherent(&pdev->dev, bp->tx_push_size, 3324 txr->tx_push, txr->tx_push_mapping); 3325 txr->tx_push = NULL; 3326 } 3327 3328 ring = &txr->tx_ring_struct; 3329 3330 bnxt_free_ring(bp, &ring->ring_mem); 3331 } 3332 } 3333 3334 static int bnxt_alloc_tx_rings(struct bnxt *bp) 3335 { 3336 int i, j, rc; 3337 struct pci_dev *pdev = bp->pdev; 3338 3339 bp->tx_push_size = 0; 3340 if (bp->tx_push_thresh) { 3341 int push_size; 3342 3343 push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) + 3344 bp->tx_push_thresh); 3345 3346 if (push_size > 256) { 3347 push_size = 0; 3348 bp->tx_push_thresh = 0; 3349 } 3350 3351 bp->tx_push_size = push_size; 3352 } 3353 3354 for (i = 0, j = 0; i < bp->tx_nr_rings; i++) { 3355 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 3356 struct bnxt_ring_struct *ring; 3357 u8 qidx; 3358 3359 ring = &txr->tx_ring_struct; 3360 3361 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 3362 if (rc) 3363 return rc; 3364 3365 ring->grp_idx = txr->bnapi->index; 3366 if (bp->tx_push_size) { 3367 dma_addr_t mapping; 3368 3369 /* One pre-allocated DMA buffer to backup 3370 * TX push operation 3371 */ 3372 txr->tx_push = dma_alloc_coherent(&pdev->dev, 3373 bp->tx_push_size, 3374 &txr->tx_push_mapping, 3375 GFP_KERNEL); 3376 3377 if (!txr->tx_push) 3378 return -ENOMEM; 3379 3380 mapping = txr->tx_push_mapping + 3381 sizeof(struct tx_push_bd); 3382 txr->data_mapping = cpu_to_le64(mapping); 3383 } 3384 qidx = bp->tc_to_qidx[j]; 3385 ring->queue_id = bp->q_info[qidx].queue_id; 3386 spin_lock_init(&txr->xdp_tx_lock); 3387 if (i < bp->tx_nr_rings_xdp) 3388 continue; 3389 if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1)) 3390 j++; 3391 } 3392 return 0; 3393 } 3394 3395 static void bnxt_free_cp_arrays(struct bnxt_cp_ring_info *cpr) 3396 { 3397 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 3398 3399 kfree(cpr->cp_desc_ring); 3400 cpr->cp_desc_ring = NULL; 3401 ring->ring_mem.pg_arr = NULL; 3402 kfree(cpr->cp_desc_mapping); 3403 cpr->cp_desc_mapping = NULL; 3404 ring->ring_mem.dma_arr = NULL; 3405 } 3406 3407 static int bnxt_alloc_cp_arrays(struct bnxt_cp_ring_info *cpr, int n) 3408 { 3409 cpr->cp_desc_ring = kcalloc(n, sizeof(*cpr->cp_desc_ring), GFP_KERNEL); 3410 if (!cpr->cp_desc_ring) 3411 return -ENOMEM; 3412 cpr->cp_desc_mapping = kcalloc(n, sizeof(*cpr->cp_desc_mapping), 3413 GFP_KERNEL); 3414 if (!cpr->cp_desc_mapping) 3415 return -ENOMEM; 3416 return 0; 3417 } 3418 3419 static void bnxt_free_all_cp_arrays(struct bnxt *bp) 3420 { 3421 int i; 3422 3423 if (!bp->bnapi) 3424 return; 3425 for (i = 0; i < bp->cp_nr_rings; i++) { 3426 struct bnxt_napi *bnapi = bp->bnapi[i]; 3427 3428 if (!bnapi) 3429 continue; 3430 bnxt_free_cp_arrays(&bnapi->cp_ring); 3431 } 3432 } 3433 3434 static int bnxt_alloc_all_cp_arrays(struct bnxt *bp) 3435 { 3436 int i, n = bp->cp_nr_pages; 3437 3438 for (i = 0; i < bp->cp_nr_rings; i++) { 3439 struct bnxt_napi *bnapi = bp->bnapi[i]; 3440 int rc; 3441 3442 if (!bnapi) 3443 continue; 3444 rc = bnxt_alloc_cp_arrays(&bnapi->cp_ring, n); 3445 if (rc) 3446 return rc; 3447 } 3448 return 0; 3449 } 3450 3451 static void bnxt_free_cp_rings(struct bnxt *bp) 3452 { 3453 int i; 3454 3455 if (!bp->bnapi) 3456 return; 3457 3458 for (i = 0; i < bp->cp_nr_rings; i++) { 3459 struct bnxt_napi *bnapi = bp->bnapi[i]; 3460 struct bnxt_cp_ring_info *cpr; 3461 struct bnxt_ring_struct *ring; 3462 int j; 3463 3464 if (!bnapi) 3465 continue; 3466 3467 cpr = &bnapi->cp_ring; 3468 ring = &cpr->cp_ring_struct; 3469 3470 bnxt_free_ring(bp, &ring->ring_mem); 3471 3472 for (j = 0; j < 2; j++) { 3473 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; 3474 3475 if (cpr2) { 3476 ring = &cpr2->cp_ring_struct; 3477 bnxt_free_ring(bp, &ring->ring_mem); 3478 bnxt_free_cp_arrays(cpr2); 3479 kfree(cpr2); 3480 cpr->cp_ring_arr[j] = NULL; 3481 } 3482 } 3483 } 3484 } 3485 3486 static struct bnxt_cp_ring_info *bnxt_alloc_cp_sub_ring(struct bnxt *bp) 3487 { 3488 struct bnxt_ring_mem_info *rmem; 3489 struct bnxt_ring_struct *ring; 3490 struct bnxt_cp_ring_info *cpr; 3491 int rc; 3492 3493 cpr = kzalloc(sizeof(*cpr), GFP_KERNEL); 3494 if (!cpr) 3495 return NULL; 3496 3497 rc = bnxt_alloc_cp_arrays(cpr, bp->cp_nr_pages); 3498 if (rc) { 3499 bnxt_free_cp_arrays(cpr); 3500 kfree(cpr); 3501 return NULL; 3502 } 3503 ring = &cpr->cp_ring_struct; 3504 rmem = &ring->ring_mem; 3505 rmem->nr_pages = bp->cp_nr_pages; 3506 rmem->page_size = HW_CMPD_RING_SIZE; 3507 rmem->pg_arr = (void **)cpr->cp_desc_ring; 3508 rmem->dma_arr = cpr->cp_desc_mapping; 3509 rmem->flags = BNXT_RMEM_RING_PTE_FLAG; 3510 rc = bnxt_alloc_ring(bp, rmem); 3511 if (rc) { 3512 bnxt_free_ring(bp, rmem); 3513 bnxt_free_cp_arrays(cpr); 3514 kfree(cpr); 3515 cpr = NULL; 3516 } 3517 return cpr; 3518 } 3519 3520 static int bnxt_alloc_cp_rings(struct bnxt *bp) 3521 { 3522 bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS); 3523 int i, rc, ulp_base_vec, ulp_msix; 3524 3525 ulp_msix = bnxt_get_ulp_msix_num(bp); 3526 ulp_base_vec = bnxt_get_ulp_msix_base(bp); 3527 for (i = 0; i < bp->cp_nr_rings; i++) { 3528 struct bnxt_napi *bnapi = bp->bnapi[i]; 3529 struct bnxt_cp_ring_info *cpr; 3530 struct bnxt_ring_struct *ring; 3531 3532 if (!bnapi) 3533 continue; 3534 3535 cpr = &bnapi->cp_ring; 3536 cpr->bnapi = bnapi; 3537 ring = &cpr->cp_ring_struct; 3538 3539 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 3540 if (rc) 3541 return rc; 3542 3543 if (ulp_msix && i >= ulp_base_vec) 3544 ring->map_idx = i + ulp_msix; 3545 else 3546 ring->map_idx = i; 3547 3548 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 3549 continue; 3550 3551 if (i < bp->rx_nr_rings) { 3552 struct bnxt_cp_ring_info *cpr2 = 3553 bnxt_alloc_cp_sub_ring(bp); 3554 3555 cpr->cp_ring_arr[BNXT_RX_HDL] = cpr2; 3556 if (!cpr2) 3557 return -ENOMEM; 3558 cpr2->bnapi = bnapi; 3559 } 3560 if ((sh && i < bp->tx_nr_rings) || 3561 (!sh && i >= bp->rx_nr_rings)) { 3562 struct bnxt_cp_ring_info *cpr2 = 3563 bnxt_alloc_cp_sub_ring(bp); 3564 3565 cpr->cp_ring_arr[BNXT_TX_HDL] = cpr2; 3566 if (!cpr2) 3567 return -ENOMEM; 3568 cpr2->bnapi = bnapi; 3569 } 3570 } 3571 return 0; 3572 } 3573 3574 static void bnxt_init_ring_struct(struct bnxt *bp) 3575 { 3576 int i; 3577 3578 for (i = 0; i < bp->cp_nr_rings; i++) { 3579 struct bnxt_napi *bnapi = bp->bnapi[i]; 3580 struct bnxt_ring_mem_info *rmem; 3581 struct bnxt_cp_ring_info *cpr; 3582 struct bnxt_rx_ring_info *rxr; 3583 struct bnxt_tx_ring_info *txr; 3584 struct bnxt_ring_struct *ring; 3585 3586 if (!bnapi) 3587 continue; 3588 3589 cpr = &bnapi->cp_ring; 3590 ring = &cpr->cp_ring_struct; 3591 rmem = &ring->ring_mem; 3592 rmem->nr_pages = bp->cp_nr_pages; 3593 rmem->page_size = HW_CMPD_RING_SIZE; 3594 rmem->pg_arr = (void **)cpr->cp_desc_ring; 3595 rmem->dma_arr = cpr->cp_desc_mapping; 3596 rmem->vmem_size = 0; 3597 3598 rxr = bnapi->rx_ring; 3599 if (!rxr) 3600 goto skip_rx; 3601 3602 ring = &rxr->rx_ring_struct; 3603 rmem = &ring->ring_mem; 3604 rmem->nr_pages = bp->rx_nr_pages; 3605 rmem->page_size = HW_RXBD_RING_SIZE; 3606 rmem->pg_arr = (void **)rxr->rx_desc_ring; 3607 rmem->dma_arr = rxr->rx_desc_mapping; 3608 rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages; 3609 rmem->vmem = (void **)&rxr->rx_buf_ring; 3610 3611 ring = &rxr->rx_agg_ring_struct; 3612 rmem = &ring->ring_mem; 3613 rmem->nr_pages = bp->rx_agg_nr_pages; 3614 rmem->page_size = HW_RXBD_RING_SIZE; 3615 rmem->pg_arr = (void **)rxr->rx_agg_desc_ring; 3616 rmem->dma_arr = rxr->rx_agg_desc_mapping; 3617 rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages; 3618 rmem->vmem = (void **)&rxr->rx_agg_ring; 3619 3620 skip_rx: 3621 txr = bnapi->tx_ring; 3622 if (!txr) 3623 continue; 3624 3625 ring = &txr->tx_ring_struct; 3626 rmem = &ring->ring_mem; 3627 rmem->nr_pages = bp->tx_nr_pages; 3628 rmem->page_size = HW_RXBD_RING_SIZE; 3629 rmem->pg_arr = (void **)txr->tx_desc_ring; 3630 rmem->dma_arr = txr->tx_desc_mapping; 3631 rmem->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages; 3632 rmem->vmem = (void **)&txr->tx_buf_ring; 3633 } 3634 } 3635 3636 static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type) 3637 { 3638 int i; 3639 u32 prod; 3640 struct rx_bd **rx_buf_ring; 3641 3642 rx_buf_ring = (struct rx_bd **)ring->ring_mem.pg_arr; 3643 for (i = 0, prod = 0; i < ring->ring_mem.nr_pages; i++) { 3644 int j; 3645 struct rx_bd *rxbd; 3646 3647 rxbd = rx_buf_ring[i]; 3648 if (!rxbd) 3649 continue; 3650 3651 for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) { 3652 rxbd->rx_bd_len_flags_type = cpu_to_le32(type); 3653 rxbd->rx_bd_opaque = prod; 3654 } 3655 } 3656 } 3657 3658 static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr) 3659 { 3660 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; 3661 struct net_device *dev = bp->dev; 3662 u32 prod; 3663 int i; 3664 3665 prod = rxr->rx_prod; 3666 for (i = 0; i < bp->rx_ring_size; i++) { 3667 if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL)) { 3668 netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n", 3669 ring_nr, i, bp->rx_ring_size); 3670 break; 3671 } 3672 prod = NEXT_RX(prod); 3673 } 3674 rxr->rx_prod = prod; 3675 3676 if (!(bp->flags & BNXT_FLAG_AGG_RINGS)) 3677 return 0; 3678 3679 prod = rxr->rx_agg_prod; 3680 for (i = 0; i < bp->rx_agg_ring_size; i++) { 3681 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL)) { 3682 netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n", 3683 ring_nr, i, bp->rx_ring_size); 3684 break; 3685 } 3686 prod = NEXT_RX_AGG(prod); 3687 } 3688 rxr->rx_agg_prod = prod; 3689 3690 if (rxr->rx_tpa) { 3691 dma_addr_t mapping; 3692 u8 *data; 3693 3694 for (i = 0; i < bp->max_tpa; i++) { 3695 data = __bnxt_alloc_rx_frag(bp, &mapping, GFP_KERNEL); 3696 if (!data) 3697 return -ENOMEM; 3698 3699 rxr->rx_tpa[i].data = data; 3700 rxr->rx_tpa[i].data_ptr = data + bp->rx_offset; 3701 rxr->rx_tpa[i].mapping = mapping; 3702 } 3703 } 3704 return 0; 3705 } 3706 3707 static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) 3708 { 3709 struct bnxt_rx_ring_info *rxr; 3710 struct bnxt_ring_struct *ring; 3711 u32 type; 3712 3713 type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) | 3714 RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP; 3715 3716 if (NET_IP_ALIGN == 2) 3717 type |= RX_BD_FLAGS_SOP; 3718 3719 rxr = &bp->rx_ring[ring_nr]; 3720 ring = &rxr->rx_ring_struct; 3721 bnxt_init_rxbd_pages(ring, type); 3722 3723 if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) { 3724 bpf_prog_add(bp->xdp_prog, 1); 3725 rxr->xdp_prog = bp->xdp_prog; 3726 } 3727 ring->fw_ring_id = INVALID_HW_RING_ID; 3728 3729 ring = &rxr->rx_agg_ring_struct; 3730 ring->fw_ring_id = INVALID_HW_RING_ID; 3731 3732 if ((bp->flags & BNXT_FLAG_AGG_RINGS)) { 3733 type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) | 3734 RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP; 3735 3736 bnxt_init_rxbd_pages(ring, type); 3737 } 3738 3739 return bnxt_alloc_one_rx_ring(bp, ring_nr); 3740 } 3741 3742 static void bnxt_init_cp_rings(struct bnxt *bp) 3743 { 3744 int i, j; 3745 3746 for (i = 0; i < bp->cp_nr_rings; i++) { 3747 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; 3748 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 3749 3750 ring->fw_ring_id = INVALID_HW_RING_ID; 3751 cpr->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; 3752 cpr->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; 3753 for (j = 0; j < 2; j++) { 3754 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; 3755 3756 if (!cpr2) 3757 continue; 3758 3759 ring = &cpr2->cp_ring_struct; 3760 ring->fw_ring_id = INVALID_HW_RING_ID; 3761 cpr2->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; 3762 cpr2->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; 3763 } 3764 } 3765 } 3766 3767 static int bnxt_init_rx_rings(struct bnxt *bp) 3768 { 3769 int i, rc = 0; 3770 3771 if (BNXT_RX_PAGE_MODE(bp)) { 3772 bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM; 3773 bp->rx_dma_offset = XDP_PACKET_HEADROOM; 3774 } else { 3775 bp->rx_offset = BNXT_RX_OFFSET; 3776 bp->rx_dma_offset = BNXT_RX_DMA_OFFSET; 3777 } 3778 3779 for (i = 0; i < bp->rx_nr_rings; i++) { 3780 rc = bnxt_init_one_rx_ring(bp, i); 3781 if (rc) 3782 break; 3783 } 3784 3785 return rc; 3786 } 3787 3788 static int bnxt_init_tx_rings(struct bnxt *bp) 3789 { 3790 u16 i; 3791 3792 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2, 3793 BNXT_MIN_TX_DESC_CNT); 3794 3795 for (i = 0; i < bp->tx_nr_rings; i++) { 3796 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 3797 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 3798 3799 ring->fw_ring_id = INVALID_HW_RING_ID; 3800 } 3801 3802 return 0; 3803 } 3804 3805 static void bnxt_free_ring_grps(struct bnxt *bp) 3806 { 3807 kfree(bp->grp_info); 3808 bp->grp_info = NULL; 3809 } 3810 3811 static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init) 3812 { 3813 int i; 3814 3815 if (irq_re_init) { 3816 bp->grp_info = kcalloc(bp->cp_nr_rings, 3817 sizeof(struct bnxt_ring_grp_info), 3818 GFP_KERNEL); 3819 if (!bp->grp_info) 3820 return -ENOMEM; 3821 } 3822 for (i = 0; i < bp->cp_nr_rings; i++) { 3823 if (irq_re_init) 3824 bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID; 3825 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 3826 bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID; 3827 bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID; 3828 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 3829 } 3830 return 0; 3831 } 3832 3833 static void bnxt_free_vnics(struct bnxt *bp) 3834 { 3835 kfree(bp->vnic_info); 3836 bp->vnic_info = NULL; 3837 bp->nr_vnics = 0; 3838 } 3839 3840 static int bnxt_alloc_vnics(struct bnxt *bp) 3841 { 3842 int num_vnics = 1; 3843 3844 #ifdef CONFIG_RFS_ACCEL 3845 if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS) 3846 num_vnics += bp->rx_nr_rings; 3847 #endif 3848 3849 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 3850 num_vnics++; 3851 3852 bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info), 3853 GFP_KERNEL); 3854 if (!bp->vnic_info) 3855 return -ENOMEM; 3856 3857 bp->nr_vnics = num_vnics; 3858 return 0; 3859 } 3860 3861 static void bnxt_init_vnics(struct bnxt *bp) 3862 { 3863 int i; 3864 3865 for (i = 0; i < bp->nr_vnics; i++) { 3866 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 3867 int j; 3868 3869 vnic->fw_vnic_id = INVALID_HW_RING_ID; 3870 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) 3871 vnic->fw_rss_cos_lb_ctx[j] = INVALID_HW_RING_ID; 3872 3873 vnic->fw_l2_ctx_id = INVALID_HW_RING_ID; 3874 3875 if (bp->vnic_info[i].rss_hash_key) { 3876 if (i == 0) 3877 get_random_bytes(vnic->rss_hash_key, 3878 HW_HASH_KEY_SIZE); 3879 else 3880 memcpy(vnic->rss_hash_key, 3881 bp->vnic_info[0].rss_hash_key, 3882 HW_HASH_KEY_SIZE); 3883 } 3884 } 3885 } 3886 3887 static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg) 3888 { 3889 int pages; 3890 3891 pages = ring_size / desc_per_pg; 3892 3893 if (!pages) 3894 return 1; 3895 3896 pages++; 3897 3898 while (pages & (pages - 1)) 3899 pages++; 3900 3901 return pages; 3902 } 3903 3904 void bnxt_set_tpa_flags(struct bnxt *bp) 3905 { 3906 bp->flags &= ~BNXT_FLAG_TPA; 3907 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 3908 return; 3909 if (bp->dev->features & NETIF_F_LRO) 3910 bp->flags |= BNXT_FLAG_LRO; 3911 else if (bp->dev->features & NETIF_F_GRO_HW) 3912 bp->flags |= BNXT_FLAG_GRO; 3913 } 3914 3915 /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must 3916 * be set on entry. 3917 */ 3918 void bnxt_set_ring_params(struct bnxt *bp) 3919 { 3920 u32 ring_size, rx_size, rx_space, max_rx_cmpl; 3921 u32 agg_factor = 0, agg_ring_size = 0; 3922 3923 /* 8 for CRC and VLAN */ 3924 rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8); 3925 3926 rx_space = rx_size + ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) + 3927 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 3928 3929 bp->rx_copy_thresh = BNXT_RX_COPY_THRESH; 3930 ring_size = bp->rx_ring_size; 3931 bp->rx_agg_ring_size = 0; 3932 bp->rx_agg_nr_pages = 0; 3933 3934 if (bp->flags & BNXT_FLAG_TPA) 3935 agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE); 3936 3937 bp->flags &= ~BNXT_FLAG_JUMBO; 3938 if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) { 3939 u32 jumbo_factor; 3940 3941 bp->flags |= BNXT_FLAG_JUMBO; 3942 jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT; 3943 if (jumbo_factor > agg_factor) 3944 agg_factor = jumbo_factor; 3945 } 3946 if (agg_factor) { 3947 if (ring_size > BNXT_MAX_RX_DESC_CNT_JUM_ENA) { 3948 ring_size = BNXT_MAX_RX_DESC_CNT_JUM_ENA; 3949 netdev_warn(bp->dev, "RX ring size reduced from %d to %d because the jumbo ring is now enabled\n", 3950 bp->rx_ring_size, ring_size); 3951 bp->rx_ring_size = ring_size; 3952 } 3953 agg_ring_size = ring_size * agg_factor; 3954 3955 bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size, 3956 RX_DESC_CNT); 3957 if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) { 3958 u32 tmp = agg_ring_size; 3959 3960 bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES; 3961 agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1; 3962 netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n", 3963 tmp, agg_ring_size); 3964 } 3965 bp->rx_agg_ring_size = agg_ring_size; 3966 bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1; 3967 3968 if (BNXT_RX_PAGE_MODE(bp)) { 3969 rx_space = BNXT_PAGE_MODE_BUF_SIZE; 3970 rx_size = BNXT_MAX_PAGE_MODE_MTU; 3971 } else { 3972 rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN); 3973 rx_space = rx_size + NET_SKB_PAD + 3974 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 3975 } 3976 } 3977 3978 bp->rx_buf_use_size = rx_size; 3979 bp->rx_buf_size = rx_space; 3980 3981 bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT); 3982 bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1; 3983 3984 ring_size = bp->tx_ring_size; 3985 bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT); 3986 bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1; 3987 3988 max_rx_cmpl = bp->rx_ring_size; 3989 /* MAX TPA needs to be added because TPA_START completions are 3990 * immediately recycled, so the TPA completions are not bound by 3991 * the RX ring size. 3992 */ 3993 if (bp->flags & BNXT_FLAG_TPA) 3994 max_rx_cmpl += bp->max_tpa; 3995 /* RX and TPA completions are 32-byte, all others are 16-byte */ 3996 ring_size = max_rx_cmpl * 2 + agg_ring_size + bp->tx_ring_size; 3997 bp->cp_ring_size = ring_size; 3998 3999 bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT); 4000 if (bp->cp_nr_pages > MAX_CP_PAGES) { 4001 bp->cp_nr_pages = MAX_CP_PAGES; 4002 bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1; 4003 netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n", 4004 ring_size, bp->cp_ring_size); 4005 } 4006 bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT; 4007 bp->cp_ring_mask = bp->cp_bit - 1; 4008 } 4009 4010 /* Changing allocation mode of RX rings. 4011 * TODO: Update when extending xdp_rxq_info to support allocation modes. 4012 */ 4013 int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode) 4014 { 4015 if (page_mode) { 4016 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 4017 bp->flags |= BNXT_FLAG_RX_PAGE_MODE; 4018 4019 if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) { 4020 bp->flags |= BNXT_FLAG_JUMBO; 4021 bp->rx_skb_func = bnxt_rx_multi_page_skb; 4022 bp->dev->max_mtu = 4023 min_t(u16, bp->max_mtu, BNXT_MAX_MTU); 4024 } else { 4025 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 4026 bp->rx_skb_func = bnxt_rx_page_skb; 4027 bp->dev->max_mtu = 4028 min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU); 4029 } 4030 bp->rx_dir = DMA_BIDIRECTIONAL; 4031 /* Disable LRO or GRO_HW */ 4032 netdev_update_features(bp->dev); 4033 } else { 4034 bp->dev->max_mtu = bp->max_mtu; 4035 bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE; 4036 bp->rx_dir = DMA_FROM_DEVICE; 4037 bp->rx_skb_func = bnxt_rx_skb; 4038 } 4039 return 0; 4040 } 4041 4042 static void bnxt_free_vnic_attributes(struct bnxt *bp) 4043 { 4044 int i; 4045 struct bnxt_vnic_info *vnic; 4046 struct pci_dev *pdev = bp->pdev; 4047 4048 if (!bp->vnic_info) 4049 return; 4050 4051 for (i = 0; i < bp->nr_vnics; i++) { 4052 vnic = &bp->vnic_info[i]; 4053 4054 kfree(vnic->fw_grp_ids); 4055 vnic->fw_grp_ids = NULL; 4056 4057 kfree(vnic->uc_list); 4058 vnic->uc_list = NULL; 4059 4060 if (vnic->mc_list) { 4061 dma_free_coherent(&pdev->dev, vnic->mc_list_size, 4062 vnic->mc_list, vnic->mc_list_mapping); 4063 vnic->mc_list = NULL; 4064 } 4065 4066 if (vnic->rss_table) { 4067 dma_free_coherent(&pdev->dev, vnic->rss_table_size, 4068 vnic->rss_table, 4069 vnic->rss_table_dma_addr); 4070 vnic->rss_table = NULL; 4071 } 4072 4073 vnic->rss_hash_key = NULL; 4074 vnic->flags = 0; 4075 } 4076 } 4077 4078 static int bnxt_alloc_vnic_attributes(struct bnxt *bp) 4079 { 4080 int i, rc = 0, size; 4081 struct bnxt_vnic_info *vnic; 4082 struct pci_dev *pdev = bp->pdev; 4083 int max_rings; 4084 4085 for (i = 0; i < bp->nr_vnics; i++) { 4086 vnic = &bp->vnic_info[i]; 4087 4088 if (vnic->flags & BNXT_VNIC_UCAST_FLAG) { 4089 int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN; 4090 4091 if (mem_size > 0) { 4092 vnic->uc_list = kmalloc(mem_size, GFP_KERNEL); 4093 if (!vnic->uc_list) { 4094 rc = -ENOMEM; 4095 goto out; 4096 } 4097 } 4098 } 4099 4100 if (vnic->flags & BNXT_VNIC_MCAST_FLAG) { 4101 vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN; 4102 vnic->mc_list = 4103 dma_alloc_coherent(&pdev->dev, 4104 vnic->mc_list_size, 4105 &vnic->mc_list_mapping, 4106 GFP_KERNEL); 4107 if (!vnic->mc_list) { 4108 rc = -ENOMEM; 4109 goto out; 4110 } 4111 } 4112 4113 if (bp->flags & BNXT_FLAG_CHIP_P5) 4114 goto vnic_skip_grps; 4115 4116 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 4117 max_rings = bp->rx_nr_rings; 4118 else 4119 max_rings = 1; 4120 4121 vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL); 4122 if (!vnic->fw_grp_ids) { 4123 rc = -ENOMEM; 4124 goto out; 4125 } 4126 vnic_skip_grps: 4127 if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) && 4128 !(vnic->flags & BNXT_VNIC_RSS_FLAG)) 4129 continue; 4130 4131 /* Allocate rss table and hash key */ 4132 size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16)); 4133 if (bp->flags & BNXT_FLAG_CHIP_P5) 4134 size = L1_CACHE_ALIGN(BNXT_MAX_RSS_TABLE_SIZE_P5); 4135 4136 vnic->rss_table_size = size + HW_HASH_KEY_SIZE; 4137 vnic->rss_table = dma_alloc_coherent(&pdev->dev, 4138 vnic->rss_table_size, 4139 &vnic->rss_table_dma_addr, 4140 GFP_KERNEL); 4141 if (!vnic->rss_table) { 4142 rc = -ENOMEM; 4143 goto out; 4144 } 4145 4146 vnic->rss_hash_key = ((void *)vnic->rss_table) + size; 4147 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size; 4148 } 4149 return 0; 4150 4151 out: 4152 return rc; 4153 } 4154 4155 static void bnxt_free_hwrm_resources(struct bnxt *bp) 4156 { 4157 struct bnxt_hwrm_wait_token *token; 4158 4159 dma_pool_destroy(bp->hwrm_dma_pool); 4160 bp->hwrm_dma_pool = NULL; 4161 4162 rcu_read_lock(); 4163 hlist_for_each_entry_rcu(token, &bp->hwrm_pending_list, node) 4164 WRITE_ONCE(token->state, BNXT_HWRM_CANCELLED); 4165 rcu_read_unlock(); 4166 } 4167 4168 static int bnxt_alloc_hwrm_resources(struct bnxt *bp) 4169 { 4170 bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &bp->pdev->dev, 4171 BNXT_HWRM_DMA_SIZE, 4172 BNXT_HWRM_DMA_ALIGN, 0); 4173 if (!bp->hwrm_dma_pool) 4174 return -ENOMEM; 4175 4176 INIT_HLIST_HEAD(&bp->hwrm_pending_list); 4177 4178 return 0; 4179 } 4180 4181 static void bnxt_free_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats) 4182 { 4183 kfree(stats->hw_masks); 4184 stats->hw_masks = NULL; 4185 kfree(stats->sw_stats); 4186 stats->sw_stats = NULL; 4187 if (stats->hw_stats) { 4188 dma_free_coherent(&bp->pdev->dev, stats->len, stats->hw_stats, 4189 stats->hw_stats_map); 4190 stats->hw_stats = NULL; 4191 } 4192 } 4193 4194 static int bnxt_alloc_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats, 4195 bool alloc_masks) 4196 { 4197 stats->hw_stats = dma_alloc_coherent(&bp->pdev->dev, stats->len, 4198 &stats->hw_stats_map, GFP_KERNEL); 4199 if (!stats->hw_stats) 4200 return -ENOMEM; 4201 4202 stats->sw_stats = kzalloc(stats->len, GFP_KERNEL); 4203 if (!stats->sw_stats) 4204 goto stats_mem_err; 4205 4206 if (alloc_masks) { 4207 stats->hw_masks = kzalloc(stats->len, GFP_KERNEL); 4208 if (!stats->hw_masks) 4209 goto stats_mem_err; 4210 } 4211 return 0; 4212 4213 stats_mem_err: 4214 bnxt_free_stats_mem(bp, stats); 4215 return -ENOMEM; 4216 } 4217 4218 static void bnxt_fill_masks(u64 *mask_arr, u64 mask, int count) 4219 { 4220 int i; 4221 4222 for (i = 0; i < count; i++) 4223 mask_arr[i] = mask; 4224 } 4225 4226 static void bnxt_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count) 4227 { 4228 int i; 4229 4230 for (i = 0; i < count; i++) 4231 mask_arr[i] = le64_to_cpu(hw_mask_arr[i]); 4232 } 4233 4234 static int bnxt_hwrm_func_qstat_ext(struct bnxt *bp, 4235 struct bnxt_stats_mem *stats) 4236 { 4237 struct hwrm_func_qstats_ext_output *resp; 4238 struct hwrm_func_qstats_ext_input *req; 4239 __le64 *hw_masks; 4240 int rc; 4241 4242 if (!(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED) || 4243 !(bp->flags & BNXT_FLAG_CHIP_P5)) 4244 return -EOPNOTSUPP; 4245 4246 rc = hwrm_req_init(bp, req, HWRM_FUNC_QSTATS_EXT); 4247 if (rc) 4248 return rc; 4249 4250 req->fid = cpu_to_le16(0xffff); 4251 req->flags = FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; 4252 4253 resp = hwrm_req_hold(bp, req); 4254 rc = hwrm_req_send(bp, req); 4255 if (!rc) { 4256 hw_masks = &resp->rx_ucast_pkts; 4257 bnxt_copy_hw_masks(stats->hw_masks, hw_masks, stats->len / 8); 4258 } 4259 hwrm_req_drop(bp, req); 4260 return rc; 4261 } 4262 4263 static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags); 4264 static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags); 4265 4266 static void bnxt_init_stats(struct bnxt *bp) 4267 { 4268 struct bnxt_napi *bnapi = bp->bnapi[0]; 4269 struct bnxt_cp_ring_info *cpr; 4270 struct bnxt_stats_mem *stats; 4271 __le64 *rx_stats, *tx_stats; 4272 int rc, rx_count, tx_count; 4273 u64 *rx_masks, *tx_masks; 4274 u64 mask; 4275 u8 flags; 4276 4277 cpr = &bnapi->cp_ring; 4278 stats = &cpr->stats; 4279 rc = bnxt_hwrm_func_qstat_ext(bp, stats); 4280 if (rc) { 4281 if (bp->flags & BNXT_FLAG_CHIP_P5) 4282 mask = (1ULL << 48) - 1; 4283 else 4284 mask = -1ULL; 4285 bnxt_fill_masks(stats->hw_masks, mask, stats->len / 8); 4286 } 4287 if (bp->flags & BNXT_FLAG_PORT_STATS) { 4288 stats = &bp->port_stats; 4289 rx_stats = stats->hw_stats; 4290 rx_masks = stats->hw_masks; 4291 rx_count = sizeof(struct rx_port_stats) / 8; 4292 tx_stats = rx_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 4293 tx_masks = rx_masks + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 4294 tx_count = sizeof(struct tx_port_stats) / 8; 4295 4296 flags = PORT_QSTATS_REQ_FLAGS_COUNTER_MASK; 4297 rc = bnxt_hwrm_port_qstats(bp, flags); 4298 if (rc) { 4299 mask = (1ULL << 40) - 1; 4300 4301 bnxt_fill_masks(rx_masks, mask, rx_count); 4302 bnxt_fill_masks(tx_masks, mask, tx_count); 4303 } else { 4304 bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); 4305 bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count); 4306 bnxt_hwrm_port_qstats(bp, 0); 4307 } 4308 } 4309 if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { 4310 stats = &bp->rx_port_stats_ext; 4311 rx_stats = stats->hw_stats; 4312 rx_masks = stats->hw_masks; 4313 rx_count = sizeof(struct rx_port_stats_ext) / 8; 4314 stats = &bp->tx_port_stats_ext; 4315 tx_stats = stats->hw_stats; 4316 tx_masks = stats->hw_masks; 4317 tx_count = sizeof(struct tx_port_stats_ext) / 8; 4318 4319 flags = PORT_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; 4320 rc = bnxt_hwrm_port_qstats_ext(bp, flags); 4321 if (rc) { 4322 mask = (1ULL << 40) - 1; 4323 4324 bnxt_fill_masks(rx_masks, mask, rx_count); 4325 if (tx_stats) 4326 bnxt_fill_masks(tx_masks, mask, tx_count); 4327 } else { 4328 bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); 4329 if (tx_stats) 4330 bnxt_copy_hw_masks(tx_masks, tx_stats, 4331 tx_count); 4332 bnxt_hwrm_port_qstats_ext(bp, 0); 4333 } 4334 } 4335 } 4336 4337 static void bnxt_free_port_stats(struct bnxt *bp) 4338 { 4339 bp->flags &= ~BNXT_FLAG_PORT_STATS; 4340 bp->flags &= ~BNXT_FLAG_PORT_STATS_EXT; 4341 4342 bnxt_free_stats_mem(bp, &bp->port_stats); 4343 bnxt_free_stats_mem(bp, &bp->rx_port_stats_ext); 4344 bnxt_free_stats_mem(bp, &bp->tx_port_stats_ext); 4345 } 4346 4347 static void bnxt_free_ring_stats(struct bnxt *bp) 4348 { 4349 int i; 4350 4351 if (!bp->bnapi) 4352 return; 4353 4354 for (i = 0; i < bp->cp_nr_rings; i++) { 4355 struct bnxt_napi *bnapi = bp->bnapi[i]; 4356 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4357 4358 bnxt_free_stats_mem(bp, &cpr->stats); 4359 } 4360 } 4361 4362 static int bnxt_alloc_stats(struct bnxt *bp) 4363 { 4364 u32 size, i; 4365 int rc; 4366 4367 size = bp->hw_ring_stats_size; 4368 4369 for (i = 0; i < bp->cp_nr_rings; i++) { 4370 struct bnxt_napi *bnapi = bp->bnapi[i]; 4371 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4372 4373 cpr->stats.len = size; 4374 rc = bnxt_alloc_stats_mem(bp, &cpr->stats, !i); 4375 if (rc) 4376 return rc; 4377 4378 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 4379 } 4380 4381 if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700) 4382 return 0; 4383 4384 if (bp->port_stats.hw_stats) 4385 goto alloc_ext_stats; 4386 4387 bp->port_stats.len = BNXT_PORT_STATS_SIZE; 4388 rc = bnxt_alloc_stats_mem(bp, &bp->port_stats, true); 4389 if (rc) 4390 return rc; 4391 4392 bp->flags |= BNXT_FLAG_PORT_STATS; 4393 4394 alloc_ext_stats: 4395 /* Display extended statistics only if FW supports it */ 4396 if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900) 4397 if (!(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) 4398 return 0; 4399 4400 if (bp->rx_port_stats_ext.hw_stats) 4401 goto alloc_tx_ext_stats; 4402 4403 bp->rx_port_stats_ext.len = sizeof(struct rx_port_stats_ext); 4404 rc = bnxt_alloc_stats_mem(bp, &bp->rx_port_stats_ext, true); 4405 /* Extended stats are optional */ 4406 if (rc) 4407 return 0; 4408 4409 alloc_tx_ext_stats: 4410 if (bp->tx_port_stats_ext.hw_stats) 4411 return 0; 4412 4413 if (bp->hwrm_spec_code >= 0x10902 || 4414 (bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) { 4415 bp->tx_port_stats_ext.len = sizeof(struct tx_port_stats_ext); 4416 rc = bnxt_alloc_stats_mem(bp, &bp->tx_port_stats_ext, true); 4417 /* Extended stats are optional */ 4418 if (rc) 4419 return 0; 4420 } 4421 bp->flags |= BNXT_FLAG_PORT_STATS_EXT; 4422 return 0; 4423 } 4424 4425 static void bnxt_clear_ring_indices(struct bnxt *bp) 4426 { 4427 int i; 4428 4429 if (!bp->bnapi) 4430 return; 4431 4432 for (i = 0; i < bp->cp_nr_rings; i++) { 4433 struct bnxt_napi *bnapi = bp->bnapi[i]; 4434 struct bnxt_cp_ring_info *cpr; 4435 struct bnxt_rx_ring_info *rxr; 4436 struct bnxt_tx_ring_info *txr; 4437 4438 if (!bnapi) 4439 continue; 4440 4441 cpr = &bnapi->cp_ring; 4442 cpr->cp_raw_cons = 0; 4443 4444 txr = bnapi->tx_ring; 4445 if (txr) { 4446 txr->tx_prod = 0; 4447 txr->tx_cons = 0; 4448 } 4449 4450 rxr = bnapi->rx_ring; 4451 if (rxr) { 4452 rxr->rx_prod = 0; 4453 rxr->rx_agg_prod = 0; 4454 rxr->rx_sw_agg_prod = 0; 4455 rxr->rx_next_cons = 0; 4456 } 4457 } 4458 } 4459 4460 static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit) 4461 { 4462 #ifdef CONFIG_RFS_ACCEL 4463 int i; 4464 4465 /* Under rtnl_lock and all our NAPIs have been disabled. It's 4466 * safe to delete the hash table. 4467 */ 4468 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 4469 struct hlist_head *head; 4470 struct hlist_node *tmp; 4471 struct bnxt_ntuple_filter *fltr; 4472 4473 head = &bp->ntp_fltr_hash_tbl[i]; 4474 hlist_for_each_entry_safe(fltr, tmp, head, hash) { 4475 hlist_del(&fltr->hash); 4476 kfree(fltr); 4477 } 4478 } 4479 if (irq_reinit) { 4480 bitmap_free(bp->ntp_fltr_bmap); 4481 bp->ntp_fltr_bmap = NULL; 4482 } 4483 bp->ntp_fltr_count = 0; 4484 #endif 4485 } 4486 4487 static int bnxt_alloc_ntp_fltrs(struct bnxt *bp) 4488 { 4489 #ifdef CONFIG_RFS_ACCEL 4490 int i, rc = 0; 4491 4492 if (!(bp->flags & BNXT_FLAG_RFS)) 4493 return 0; 4494 4495 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) 4496 INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]); 4497 4498 bp->ntp_fltr_count = 0; 4499 bp->ntp_fltr_bmap = bitmap_zalloc(BNXT_NTP_FLTR_MAX_FLTR, GFP_KERNEL); 4500 4501 if (!bp->ntp_fltr_bmap) 4502 rc = -ENOMEM; 4503 4504 return rc; 4505 #else 4506 return 0; 4507 #endif 4508 } 4509 4510 static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init) 4511 { 4512 bnxt_free_vnic_attributes(bp); 4513 bnxt_free_tx_rings(bp); 4514 bnxt_free_rx_rings(bp); 4515 bnxt_free_cp_rings(bp); 4516 bnxt_free_all_cp_arrays(bp); 4517 bnxt_free_ntp_fltrs(bp, irq_re_init); 4518 if (irq_re_init) { 4519 bnxt_free_ring_stats(bp); 4520 if (!(bp->phy_flags & BNXT_PHY_FL_PORT_STATS_NO_RESET) || 4521 test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 4522 bnxt_free_port_stats(bp); 4523 bnxt_free_ring_grps(bp); 4524 bnxt_free_vnics(bp); 4525 kfree(bp->tx_ring_map); 4526 bp->tx_ring_map = NULL; 4527 kfree(bp->tx_ring); 4528 bp->tx_ring = NULL; 4529 kfree(bp->rx_ring); 4530 bp->rx_ring = NULL; 4531 kfree(bp->bnapi); 4532 bp->bnapi = NULL; 4533 } else { 4534 bnxt_clear_ring_indices(bp); 4535 } 4536 } 4537 4538 static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init) 4539 { 4540 int i, j, rc, size, arr_size; 4541 void *bnapi; 4542 4543 if (irq_re_init) { 4544 /* Allocate bnapi mem pointer array and mem block for 4545 * all queues 4546 */ 4547 arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) * 4548 bp->cp_nr_rings); 4549 size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi)); 4550 bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL); 4551 if (!bnapi) 4552 return -ENOMEM; 4553 4554 bp->bnapi = bnapi; 4555 bnapi += arr_size; 4556 for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) { 4557 bp->bnapi[i] = bnapi; 4558 bp->bnapi[i]->index = i; 4559 bp->bnapi[i]->bp = bp; 4560 if (bp->flags & BNXT_FLAG_CHIP_P5) { 4561 struct bnxt_cp_ring_info *cpr = 4562 &bp->bnapi[i]->cp_ring; 4563 4564 cpr->cp_ring_struct.ring_mem.flags = 4565 BNXT_RMEM_RING_PTE_FLAG; 4566 } 4567 } 4568 4569 bp->rx_ring = kcalloc(bp->rx_nr_rings, 4570 sizeof(struct bnxt_rx_ring_info), 4571 GFP_KERNEL); 4572 if (!bp->rx_ring) 4573 return -ENOMEM; 4574 4575 for (i = 0; i < bp->rx_nr_rings; i++) { 4576 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 4577 4578 if (bp->flags & BNXT_FLAG_CHIP_P5) { 4579 rxr->rx_ring_struct.ring_mem.flags = 4580 BNXT_RMEM_RING_PTE_FLAG; 4581 rxr->rx_agg_ring_struct.ring_mem.flags = 4582 BNXT_RMEM_RING_PTE_FLAG; 4583 } 4584 rxr->bnapi = bp->bnapi[i]; 4585 bp->bnapi[i]->rx_ring = &bp->rx_ring[i]; 4586 } 4587 4588 bp->tx_ring = kcalloc(bp->tx_nr_rings, 4589 sizeof(struct bnxt_tx_ring_info), 4590 GFP_KERNEL); 4591 if (!bp->tx_ring) 4592 return -ENOMEM; 4593 4594 bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16), 4595 GFP_KERNEL); 4596 4597 if (!bp->tx_ring_map) 4598 return -ENOMEM; 4599 4600 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 4601 j = 0; 4602 else 4603 j = bp->rx_nr_rings; 4604 4605 for (i = 0; i < bp->tx_nr_rings; i++, j++) { 4606 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4607 4608 if (bp->flags & BNXT_FLAG_CHIP_P5) 4609 txr->tx_ring_struct.ring_mem.flags = 4610 BNXT_RMEM_RING_PTE_FLAG; 4611 txr->bnapi = bp->bnapi[j]; 4612 bp->bnapi[j]->tx_ring = txr; 4613 bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i; 4614 if (i >= bp->tx_nr_rings_xdp) { 4615 txr->txq_index = i - bp->tx_nr_rings_xdp; 4616 bp->bnapi[j]->tx_int = bnxt_tx_int; 4617 } else { 4618 bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP; 4619 bp->bnapi[j]->tx_int = bnxt_tx_int_xdp; 4620 } 4621 } 4622 4623 rc = bnxt_alloc_stats(bp); 4624 if (rc) 4625 goto alloc_mem_err; 4626 bnxt_init_stats(bp); 4627 4628 rc = bnxt_alloc_ntp_fltrs(bp); 4629 if (rc) 4630 goto alloc_mem_err; 4631 4632 rc = bnxt_alloc_vnics(bp); 4633 if (rc) 4634 goto alloc_mem_err; 4635 } 4636 4637 rc = bnxt_alloc_all_cp_arrays(bp); 4638 if (rc) 4639 goto alloc_mem_err; 4640 4641 bnxt_init_ring_struct(bp); 4642 4643 rc = bnxt_alloc_rx_rings(bp); 4644 if (rc) 4645 goto alloc_mem_err; 4646 4647 rc = bnxt_alloc_tx_rings(bp); 4648 if (rc) 4649 goto alloc_mem_err; 4650 4651 rc = bnxt_alloc_cp_rings(bp); 4652 if (rc) 4653 goto alloc_mem_err; 4654 4655 bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG | 4656 BNXT_VNIC_UCAST_FLAG; 4657 rc = bnxt_alloc_vnic_attributes(bp); 4658 if (rc) 4659 goto alloc_mem_err; 4660 return 0; 4661 4662 alloc_mem_err: 4663 bnxt_free_mem(bp, true); 4664 return rc; 4665 } 4666 4667 static void bnxt_disable_int(struct bnxt *bp) 4668 { 4669 int i; 4670 4671 if (!bp->bnapi) 4672 return; 4673 4674 for (i = 0; i < bp->cp_nr_rings; i++) { 4675 struct bnxt_napi *bnapi = bp->bnapi[i]; 4676 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4677 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 4678 4679 if (ring->fw_ring_id != INVALID_HW_RING_ID) 4680 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); 4681 } 4682 } 4683 4684 static int bnxt_cp_num_to_irq_num(struct bnxt *bp, int n) 4685 { 4686 struct bnxt_napi *bnapi = bp->bnapi[n]; 4687 struct bnxt_cp_ring_info *cpr; 4688 4689 cpr = &bnapi->cp_ring; 4690 return cpr->cp_ring_struct.map_idx; 4691 } 4692 4693 static void bnxt_disable_int_sync(struct bnxt *bp) 4694 { 4695 int i; 4696 4697 if (!bp->irq_tbl) 4698 return; 4699 4700 atomic_inc(&bp->intr_sem); 4701 4702 bnxt_disable_int(bp); 4703 for (i = 0; i < bp->cp_nr_rings; i++) { 4704 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 4705 4706 synchronize_irq(bp->irq_tbl[map_idx].vector); 4707 } 4708 } 4709 4710 static void bnxt_enable_int(struct bnxt *bp) 4711 { 4712 int i; 4713 4714 atomic_set(&bp->intr_sem, 0); 4715 for (i = 0; i < bp->cp_nr_rings; i++) { 4716 struct bnxt_napi *bnapi = bp->bnapi[i]; 4717 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4718 4719 bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons); 4720 } 4721 } 4722 4723 int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size, 4724 bool async_only) 4725 { 4726 DECLARE_BITMAP(async_events_bmap, 256); 4727 u32 *events = (u32 *)async_events_bmap; 4728 struct hwrm_func_drv_rgtr_output *resp; 4729 struct hwrm_func_drv_rgtr_input *req; 4730 u32 flags; 4731 int rc, i; 4732 4733 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_RGTR); 4734 if (rc) 4735 return rc; 4736 4737 req->enables = cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE | 4738 FUNC_DRV_RGTR_REQ_ENABLES_VER | 4739 FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); 4740 4741 req->os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX); 4742 flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE; 4743 if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET) 4744 flags |= FUNC_DRV_RGTR_REQ_FLAGS_HOT_RESET_SUPPORT; 4745 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 4746 flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT | 4747 FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT; 4748 req->flags = cpu_to_le32(flags); 4749 req->ver_maj_8b = DRV_VER_MAJ; 4750 req->ver_min_8b = DRV_VER_MIN; 4751 req->ver_upd_8b = DRV_VER_UPD; 4752 req->ver_maj = cpu_to_le16(DRV_VER_MAJ); 4753 req->ver_min = cpu_to_le16(DRV_VER_MIN); 4754 req->ver_upd = cpu_to_le16(DRV_VER_UPD); 4755 4756 if (BNXT_PF(bp)) { 4757 u32 data[8]; 4758 int i; 4759 4760 memset(data, 0, sizeof(data)); 4761 for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) { 4762 u16 cmd = bnxt_vf_req_snif[i]; 4763 unsigned int bit, idx; 4764 4765 idx = cmd / 32; 4766 bit = cmd % 32; 4767 data[idx] |= 1 << bit; 4768 } 4769 4770 for (i = 0; i < 8; i++) 4771 req->vf_req_fwd[i] = cpu_to_le32(data[i]); 4772 4773 req->enables |= 4774 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD); 4775 } 4776 4777 if (bp->fw_cap & BNXT_FW_CAP_OVS_64BIT_HANDLE) 4778 req->flags |= cpu_to_le32( 4779 FUNC_DRV_RGTR_REQ_FLAGS_FLOW_HANDLE_64BIT_MODE); 4780 4781 memset(async_events_bmap, 0, sizeof(async_events_bmap)); 4782 for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) { 4783 u16 event_id = bnxt_async_events_arr[i]; 4784 4785 if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY && 4786 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 4787 continue; 4788 __set_bit(bnxt_async_events_arr[i], async_events_bmap); 4789 } 4790 if (bmap && bmap_size) { 4791 for (i = 0; i < bmap_size; i++) { 4792 if (test_bit(i, bmap)) 4793 __set_bit(i, async_events_bmap); 4794 } 4795 } 4796 for (i = 0; i < 8; i++) 4797 req->async_event_fwd[i] |= cpu_to_le32(events[i]); 4798 4799 if (async_only) 4800 req->enables = 4801 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); 4802 4803 resp = hwrm_req_hold(bp, req); 4804 rc = hwrm_req_send(bp, req); 4805 if (!rc) { 4806 set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state); 4807 if (resp->flags & 4808 cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED)) 4809 bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE; 4810 } 4811 hwrm_req_drop(bp, req); 4812 return rc; 4813 } 4814 4815 int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp) 4816 { 4817 struct hwrm_func_drv_unrgtr_input *req; 4818 int rc; 4819 4820 if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state)) 4821 return 0; 4822 4823 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_UNRGTR); 4824 if (rc) 4825 return rc; 4826 return hwrm_req_send(bp, req); 4827 } 4828 4829 static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type) 4830 { 4831 struct hwrm_tunnel_dst_port_free_input *req; 4832 int rc; 4833 4834 if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN && 4835 bp->vxlan_fw_dst_port_id == INVALID_HW_RING_ID) 4836 return 0; 4837 if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE && 4838 bp->nge_fw_dst_port_id == INVALID_HW_RING_ID) 4839 return 0; 4840 4841 rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_FREE); 4842 if (rc) 4843 return rc; 4844 4845 req->tunnel_type = tunnel_type; 4846 4847 switch (tunnel_type) { 4848 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN: 4849 req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id); 4850 bp->vxlan_port = 0; 4851 bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; 4852 break; 4853 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE: 4854 req->tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id); 4855 bp->nge_port = 0; 4856 bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; 4857 break; 4858 default: 4859 break; 4860 } 4861 4862 rc = hwrm_req_send(bp, req); 4863 if (rc) 4864 netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n", 4865 rc); 4866 return rc; 4867 } 4868 4869 static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port, 4870 u8 tunnel_type) 4871 { 4872 struct hwrm_tunnel_dst_port_alloc_output *resp; 4873 struct hwrm_tunnel_dst_port_alloc_input *req; 4874 int rc; 4875 4876 rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_ALLOC); 4877 if (rc) 4878 return rc; 4879 4880 req->tunnel_type = tunnel_type; 4881 req->tunnel_dst_port_val = port; 4882 4883 resp = hwrm_req_hold(bp, req); 4884 rc = hwrm_req_send(bp, req); 4885 if (rc) { 4886 netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n", 4887 rc); 4888 goto err_out; 4889 } 4890 4891 switch (tunnel_type) { 4892 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN: 4893 bp->vxlan_port = port; 4894 bp->vxlan_fw_dst_port_id = 4895 le16_to_cpu(resp->tunnel_dst_port_id); 4896 break; 4897 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE: 4898 bp->nge_port = port; 4899 bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id); 4900 break; 4901 default: 4902 break; 4903 } 4904 4905 err_out: 4906 hwrm_req_drop(bp, req); 4907 return rc; 4908 } 4909 4910 static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id) 4911 { 4912 struct hwrm_cfa_l2_set_rx_mask_input *req; 4913 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 4914 int rc; 4915 4916 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_SET_RX_MASK); 4917 if (rc) 4918 return rc; 4919 4920 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 4921 if (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST) { 4922 req->num_mc_entries = cpu_to_le32(vnic->mc_list_count); 4923 req->mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping); 4924 } 4925 req->mask = cpu_to_le32(vnic->rx_mask); 4926 return hwrm_req_send_silent(bp, req); 4927 } 4928 4929 #ifdef CONFIG_RFS_ACCEL 4930 static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp, 4931 struct bnxt_ntuple_filter *fltr) 4932 { 4933 struct hwrm_cfa_ntuple_filter_free_input *req; 4934 int rc; 4935 4936 rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_FREE); 4937 if (rc) 4938 return rc; 4939 4940 req->ntuple_filter_id = fltr->filter_id; 4941 return hwrm_req_send(bp, req); 4942 } 4943 4944 #define BNXT_NTP_FLTR_FLAGS \ 4945 (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \ 4946 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \ 4947 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \ 4948 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \ 4949 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \ 4950 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \ 4951 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \ 4952 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \ 4953 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \ 4954 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \ 4955 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \ 4956 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \ 4957 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \ 4958 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID) 4959 4960 #define BNXT_NTP_TUNNEL_FLTR_FLAG \ 4961 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE 4962 4963 static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp, 4964 struct bnxt_ntuple_filter *fltr) 4965 { 4966 struct hwrm_cfa_ntuple_filter_alloc_output *resp; 4967 struct hwrm_cfa_ntuple_filter_alloc_input *req; 4968 struct flow_keys *keys = &fltr->fkeys; 4969 struct bnxt_vnic_info *vnic; 4970 u32 flags = 0; 4971 int rc; 4972 4973 rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_ALLOC); 4974 if (rc) 4975 return rc; 4976 4977 req->l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx]; 4978 4979 if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) { 4980 flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX; 4981 req->dst_id = cpu_to_le16(fltr->rxq); 4982 } else { 4983 vnic = &bp->vnic_info[fltr->rxq + 1]; 4984 req->dst_id = cpu_to_le16(vnic->fw_vnic_id); 4985 } 4986 req->flags = cpu_to_le32(flags); 4987 req->enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS); 4988 4989 req->ethertype = htons(ETH_P_IP); 4990 memcpy(req->src_macaddr, fltr->src_mac_addr, ETH_ALEN); 4991 req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4; 4992 req->ip_protocol = keys->basic.ip_proto; 4993 4994 if (keys->basic.n_proto == htons(ETH_P_IPV6)) { 4995 int i; 4996 4997 req->ethertype = htons(ETH_P_IPV6); 4998 req->ip_addr_type = 4999 CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6; 5000 *(struct in6_addr *)&req->src_ipaddr[0] = 5001 keys->addrs.v6addrs.src; 5002 *(struct in6_addr *)&req->dst_ipaddr[0] = 5003 keys->addrs.v6addrs.dst; 5004 for (i = 0; i < 4; i++) { 5005 req->src_ipaddr_mask[i] = cpu_to_be32(0xffffffff); 5006 req->dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff); 5007 } 5008 } else { 5009 req->src_ipaddr[0] = keys->addrs.v4addrs.src; 5010 req->src_ipaddr_mask[0] = cpu_to_be32(0xffffffff); 5011 req->dst_ipaddr[0] = keys->addrs.v4addrs.dst; 5012 req->dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff); 5013 } 5014 if (keys->control.flags & FLOW_DIS_ENCAPSULATION) { 5015 req->enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG); 5016 req->tunnel_type = 5017 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL; 5018 } 5019 5020 req->src_port = keys->ports.src; 5021 req->src_port_mask = cpu_to_be16(0xffff); 5022 req->dst_port = keys->ports.dst; 5023 req->dst_port_mask = cpu_to_be16(0xffff); 5024 5025 resp = hwrm_req_hold(bp, req); 5026 rc = hwrm_req_send(bp, req); 5027 if (!rc) 5028 fltr->filter_id = resp->ntuple_filter_id; 5029 hwrm_req_drop(bp, req); 5030 return rc; 5031 } 5032 #endif 5033 5034 static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx, 5035 const u8 *mac_addr) 5036 { 5037 struct hwrm_cfa_l2_filter_alloc_output *resp; 5038 struct hwrm_cfa_l2_filter_alloc_input *req; 5039 int rc; 5040 5041 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_ALLOC); 5042 if (rc) 5043 return rc; 5044 5045 req->flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX); 5046 if (!BNXT_CHIP_TYPE_NITRO_A0(bp)) 5047 req->flags |= 5048 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST); 5049 req->dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id); 5050 req->enables = 5051 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR | 5052 CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID | 5053 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK); 5054 memcpy(req->l2_addr, mac_addr, ETH_ALEN); 5055 req->l2_addr_mask[0] = 0xff; 5056 req->l2_addr_mask[1] = 0xff; 5057 req->l2_addr_mask[2] = 0xff; 5058 req->l2_addr_mask[3] = 0xff; 5059 req->l2_addr_mask[4] = 0xff; 5060 req->l2_addr_mask[5] = 0xff; 5061 5062 resp = hwrm_req_hold(bp, req); 5063 rc = hwrm_req_send(bp, req); 5064 if (!rc) 5065 bp->vnic_info[vnic_id].fw_l2_filter_id[idx] = 5066 resp->l2_filter_id; 5067 hwrm_req_drop(bp, req); 5068 return rc; 5069 } 5070 5071 static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp) 5072 { 5073 struct hwrm_cfa_l2_filter_free_input *req; 5074 u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */ 5075 int rc; 5076 5077 /* Any associated ntuple filters will also be cleared by firmware. */ 5078 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE); 5079 if (rc) 5080 return rc; 5081 hwrm_req_hold(bp, req); 5082 for (i = 0; i < num_of_vnics; i++) { 5083 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 5084 5085 for (j = 0; j < vnic->uc_filter_count; j++) { 5086 req->l2_filter_id = vnic->fw_l2_filter_id[j]; 5087 5088 rc = hwrm_req_send(bp, req); 5089 } 5090 vnic->uc_filter_count = 0; 5091 } 5092 hwrm_req_drop(bp, req); 5093 return rc; 5094 } 5095 5096 static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags) 5097 { 5098 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5099 u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX; 5100 struct hwrm_vnic_tpa_cfg_input *req; 5101 int rc; 5102 5103 if (vnic->fw_vnic_id == INVALID_HW_RING_ID) 5104 return 0; 5105 5106 rc = hwrm_req_init(bp, req, HWRM_VNIC_TPA_CFG); 5107 if (rc) 5108 return rc; 5109 5110 if (tpa_flags) { 5111 u16 mss = bp->dev->mtu - 40; 5112 u32 nsegs, n, segs = 0, flags; 5113 5114 flags = VNIC_TPA_CFG_REQ_FLAGS_TPA | 5115 VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA | 5116 VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE | 5117 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN | 5118 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ; 5119 if (tpa_flags & BNXT_FLAG_GRO) 5120 flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO; 5121 5122 req->flags = cpu_to_le32(flags); 5123 5124 req->enables = 5125 cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS | 5126 VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS | 5127 VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN); 5128 5129 /* Number of segs are log2 units, and first packet is not 5130 * included as part of this units. 5131 */ 5132 if (mss <= BNXT_RX_PAGE_SIZE) { 5133 n = BNXT_RX_PAGE_SIZE / mss; 5134 nsegs = (MAX_SKB_FRAGS - 1) * n; 5135 } else { 5136 n = mss / BNXT_RX_PAGE_SIZE; 5137 if (mss & (BNXT_RX_PAGE_SIZE - 1)) 5138 n++; 5139 nsegs = (MAX_SKB_FRAGS - n) / n; 5140 } 5141 5142 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5143 segs = MAX_TPA_SEGS_P5; 5144 max_aggs = bp->max_tpa; 5145 } else { 5146 segs = ilog2(nsegs); 5147 } 5148 req->max_agg_segs = cpu_to_le16(segs); 5149 req->max_aggs = cpu_to_le16(max_aggs); 5150 5151 req->min_agg_len = cpu_to_le32(512); 5152 } 5153 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 5154 5155 return hwrm_req_send(bp, req); 5156 } 5157 5158 static u16 bnxt_cp_ring_from_grp(struct bnxt *bp, struct bnxt_ring_struct *ring) 5159 { 5160 struct bnxt_ring_grp_info *grp_info; 5161 5162 grp_info = &bp->grp_info[ring->grp_idx]; 5163 return grp_info->cp_fw_ring_id; 5164 } 5165 5166 static u16 bnxt_cp_ring_for_rx(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 5167 { 5168 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5169 struct bnxt_napi *bnapi = rxr->bnapi; 5170 struct bnxt_cp_ring_info *cpr; 5171 5172 cpr = bnapi->cp_ring.cp_ring_arr[BNXT_RX_HDL]; 5173 return cpr->cp_ring_struct.fw_ring_id; 5174 } else { 5175 return bnxt_cp_ring_from_grp(bp, &rxr->rx_ring_struct); 5176 } 5177 } 5178 5179 static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr) 5180 { 5181 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5182 struct bnxt_napi *bnapi = txr->bnapi; 5183 struct bnxt_cp_ring_info *cpr; 5184 5185 cpr = bnapi->cp_ring.cp_ring_arr[BNXT_TX_HDL]; 5186 return cpr->cp_ring_struct.fw_ring_id; 5187 } else { 5188 return bnxt_cp_ring_from_grp(bp, &txr->tx_ring_struct); 5189 } 5190 } 5191 5192 static int bnxt_alloc_rss_indir_tbl(struct bnxt *bp) 5193 { 5194 int entries; 5195 5196 if (bp->flags & BNXT_FLAG_CHIP_P5) 5197 entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5; 5198 else 5199 entries = HW_HASH_INDEX_SIZE; 5200 5201 bp->rss_indir_tbl_entries = entries; 5202 bp->rss_indir_tbl = kmalloc_array(entries, sizeof(*bp->rss_indir_tbl), 5203 GFP_KERNEL); 5204 if (!bp->rss_indir_tbl) 5205 return -ENOMEM; 5206 return 0; 5207 } 5208 5209 static void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp) 5210 { 5211 u16 max_rings, max_entries, pad, i; 5212 5213 if (!bp->rx_nr_rings) 5214 return; 5215 5216 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 5217 max_rings = bp->rx_nr_rings - 1; 5218 else 5219 max_rings = bp->rx_nr_rings; 5220 5221 max_entries = bnxt_get_rxfh_indir_size(bp->dev); 5222 5223 for (i = 0; i < max_entries; i++) 5224 bp->rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, max_rings); 5225 5226 pad = bp->rss_indir_tbl_entries - max_entries; 5227 if (pad) 5228 memset(&bp->rss_indir_tbl[i], 0, pad * sizeof(u16)); 5229 } 5230 5231 static u16 bnxt_get_max_rss_ring(struct bnxt *bp) 5232 { 5233 u16 i, tbl_size, max_ring = 0; 5234 5235 if (!bp->rss_indir_tbl) 5236 return 0; 5237 5238 tbl_size = bnxt_get_rxfh_indir_size(bp->dev); 5239 for (i = 0; i < tbl_size; i++) 5240 max_ring = max(max_ring, bp->rss_indir_tbl[i]); 5241 return max_ring; 5242 } 5243 5244 int bnxt_get_nr_rss_ctxs(struct bnxt *bp, int rx_rings) 5245 { 5246 if (bp->flags & BNXT_FLAG_CHIP_P5) 5247 return DIV_ROUND_UP(rx_rings, BNXT_RSS_TABLE_ENTRIES_P5); 5248 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 5249 return 2; 5250 return 1; 5251 } 5252 5253 static void __bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic) 5254 { 5255 bool no_rss = !(vnic->flags & BNXT_VNIC_RSS_FLAG); 5256 u16 i, j; 5257 5258 /* Fill the RSS indirection table with ring group ids */ 5259 for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++) { 5260 if (!no_rss) 5261 j = bp->rss_indir_tbl[i]; 5262 vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]); 5263 } 5264 } 5265 5266 static void __bnxt_fill_hw_rss_tbl_p5(struct bnxt *bp, 5267 struct bnxt_vnic_info *vnic) 5268 { 5269 __le16 *ring_tbl = vnic->rss_table; 5270 struct bnxt_rx_ring_info *rxr; 5271 u16 tbl_size, i; 5272 5273 tbl_size = bnxt_get_rxfh_indir_size(bp->dev); 5274 5275 for (i = 0; i < tbl_size; i++) { 5276 u16 ring_id, j; 5277 5278 j = bp->rss_indir_tbl[i]; 5279 rxr = &bp->rx_ring[j]; 5280 5281 ring_id = rxr->rx_ring_struct.fw_ring_id; 5282 *ring_tbl++ = cpu_to_le16(ring_id); 5283 ring_id = bnxt_cp_ring_for_rx(bp, rxr); 5284 *ring_tbl++ = cpu_to_le16(ring_id); 5285 } 5286 } 5287 5288 static void bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic) 5289 { 5290 if (bp->flags & BNXT_FLAG_CHIP_P5) 5291 __bnxt_fill_hw_rss_tbl_p5(bp, vnic); 5292 else 5293 __bnxt_fill_hw_rss_tbl(bp, vnic); 5294 } 5295 5296 static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss) 5297 { 5298 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5299 struct hwrm_vnic_rss_cfg_input *req; 5300 int rc; 5301 5302 if ((bp->flags & BNXT_FLAG_CHIP_P5) || 5303 vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID) 5304 return 0; 5305 5306 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); 5307 if (rc) 5308 return rc; 5309 5310 if (set_rss) { 5311 bnxt_fill_hw_rss_tbl(bp, vnic); 5312 req->hash_type = cpu_to_le32(bp->rss_hash_cfg); 5313 req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT; 5314 req->ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr); 5315 req->hash_key_tbl_addr = 5316 cpu_to_le64(vnic->rss_hash_key_dma_addr); 5317 } 5318 req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 5319 return hwrm_req_send(bp, req); 5320 } 5321 5322 static int bnxt_hwrm_vnic_set_rss_p5(struct bnxt *bp, u16 vnic_id, bool set_rss) 5323 { 5324 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5325 struct hwrm_vnic_rss_cfg_input *req; 5326 dma_addr_t ring_tbl_map; 5327 u32 i, nr_ctxs; 5328 int rc; 5329 5330 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); 5331 if (rc) 5332 return rc; 5333 5334 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 5335 if (!set_rss) 5336 return hwrm_req_send(bp, req); 5337 5338 bnxt_fill_hw_rss_tbl(bp, vnic); 5339 req->hash_type = cpu_to_le32(bp->rss_hash_cfg); 5340 req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT; 5341 req->hash_key_tbl_addr = cpu_to_le64(vnic->rss_hash_key_dma_addr); 5342 ring_tbl_map = vnic->rss_table_dma_addr; 5343 nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); 5344 5345 hwrm_req_hold(bp, req); 5346 for (i = 0; i < nr_ctxs; ring_tbl_map += BNXT_RSS_TABLE_SIZE_P5, i++) { 5347 req->ring_grp_tbl_addr = cpu_to_le64(ring_tbl_map); 5348 req->ring_table_pair_index = i; 5349 req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[i]); 5350 rc = hwrm_req_send(bp, req); 5351 if (rc) 5352 goto exit; 5353 } 5354 5355 exit: 5356 hwrm_req_drop(bp, req); 5357 return rc; 5358 } 5359 5360 static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id) 5361 { 5362 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5363 struct hwrm_vnic_plcmodes_cfg_input *req; 5364 int rc; 5365 5366 rc = hwrm_req_init(bp, req, HWRM_VNIC_PLCMODES_CFG); 5367 if (rc) 5368 return rc; 5369 5370 req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT); 5371 req->enables = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID); 5372 5373 if (BNXT_RX_PAGE_MODE(bp) && !BNXT_RX_JUMBO_MODE(bp)) { 5374 req->flags |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | 5375 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); 5376 req->enables |= 5377 cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); 5378 } 5379 /* thresholds not implemented in firmware yet */ 5380 req->jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh); 5381 req->hds_threshold = cpu_to_le16(bp->rx_copy_thresh); 5382 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 5383 return hwrm_req_send(bp, req); 5384 } 5385 5386 static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id, 5387 u16 ctx_idx) 5388 { 5389 struct hwrm_vnic_rss_cos_lb_ctx_free_input *req; 5390 5391 if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_FREE)) 5392 return; 5393 5394 req->rss_cos_lb_ctx_id = 5395 cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]); 5396 5397 hwrm_req_send(bp, req); 5398 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID; 5399 } 5400 5401 static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp) 5402 { 5403 int i, j; 5404 5405 for (i = 0; i < bp->nr_vnics; i++) { 5406 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 5407 5408 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) { 5409 if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID) 5410 bnxt_hwrm_vnic_ctx_free_one(bp, i, j); 5411 } 5412 } 5413 bp->rsscos_nr_ctxs = 0; 5414 } 5415 5416 static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx) 5417 { 5418 struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp; 5419 struct hwrm_vnic_rss_cos_lb_ctx_alloc_input *req; 5420 int rc; 5421 5422 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC); 5423 if (rc) 5424 return rc; 5425 5426 resp = hwrm_req_hold(bp, req); 5427 rc = hwrm_req_send(bp, req); 5428 if (!rc) 5429 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = 5430 le16_to_cpu(resp->rss_cos_lb_ctx_id); 5431 hwrm_req_drop(bp, req); 5432 5433 return rc; 5434 } 5435 5436 static u32 bnxt_get_roce_vnic_mode(struct bnxt *bp) 5437 { 5438 if (bp->flags & BNXT_FLAG_ROCE_MIRROR_CAP) 5439 return VNIC_CFG_REQ_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_MODE; 5440 return VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE; 5441 } 5442 5443 int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id) 5444 { 5445 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5446 struct hwrm_vnic_cfg_input *req; 5447 unsigned int ring = 0, grp_idx; 5448 u16 def_vlan = 0; 5449 int rc; 5450 5451 rc = hwrm_req_init(bp, req, HWRM_VNIC_CFG); 5452 if (rc) 5453 return rc; 5454 5455 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5456 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0]; 5457 5458 req->default_rx_ring_id = 5459 cpu_to_le16(rxr->rx_ring_struct.fw_ring_id); 5460 req->default_cmpl_ring_id = 5461 cpu_to_le16(bnxt_cp_ring_for_rx(bp, rxr)); 5462 req->enables = 5463 cpu_to_le32(VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID | 5464 VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID); 5465 goto vnic_mru; 5466 } 5467 req->enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP); 5468 /* Only RSS support for now TBD: COS & LB */ 5469 if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) { 5470 req->rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 5471 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 5472 VNIC_CFG_REQ_ENABLES_MRU); 5473 } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) { 5474 req->rss_rule = 5475 cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]); 5476 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 5477 VNIC_CFG_REQ_ENABLES_MRU); 5478 req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE); 5479 } else { 5480 req->rss_rule = cpu_to_le16(0xffff); 5481 } 5482 5483 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && 5484 (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) { 5485 req->cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]); 5486 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE); 5487 } else { 5488 req->cos_rule = cpu_to_le16(0xffff); 5489 } 5490 5491 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 5492 ring = 0; 5493 else if (vnic->flags & BNXT_VNIC_RFS_FLAG) 5494 ring = vnic_id - 1; 5495 else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp)) 5496 ring = bp->rx_nr_rings - 1; 5497 5498 grp_idx = bp->rx_ring[ring].bnapi->index; 5499 req->dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id); 5500 req->lb_rule = cpu_to_le16(0xffff); 5501 vnic_mru: 5502 req->mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + VLAN_HLEN); 5503 5504 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 5505 #ifdef CONFIG_BNXT_SRIOV 5506 if (BNXT_VF(bp)) 5507 def_vlan = bp->vf.vlan; 5508 #endif 5509 if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) 5510 req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); 5511 if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) 5512 req->flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp)); 5513 5514 return hwrm_req_send(bp, req); 5515 } 5516 5517 static void bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id) 5518 { 5519 if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) { 5520 struct hwrm_vnic_free_input *req; 5521 5522 if (hwrm_req_init(bp, req, HWRM_VNIC_FREE)) 5523 return; 5524 5525 req->vnic_id = 5526 cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id); 5527 5528 hwrm_req_send(bp, req); 5529 bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID; 5530 } 5531 } 5532 5533 static void bnxt_hwrm_vnic_free(struct bnxt *bp) 5534 { 5535 u16 i; 5536 5537 for (i = 0; i < bp->nr_vnics; i++) 5538 bnxt_hwrm_vnic_free_one(bp, i); 5539 } 5540 5541 static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id, 5542 unsigned int start_rx_ring_idx, 5543 unsigned int nr_rings) 5544 { 5545 unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings; 5546 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5547 struct hwrm_vnic_alloc_output *resp; 5548 struct hwrm_vnic_alloc_input *req; 5549 int rc; 5550 5551 rc = hwrm_req_init(bp, req, HWRM_VNIC_ALLOC); 5552 if (rc) 5553 return rc; 5554 5555 if (bp->flags & BNXT_FLAG_CHIP_P5) 5556 goto vnic_no_ring_grps; 5557 5558 /* map ring groups to this vnic */ 5559 for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) { 5560 grp_idx = bp->rx_ring[i].bnapi->index; 5561 if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) { 5562 netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n", 5563 j, nr_rings); 5564 break; 5565 } 5566 vnic->fw_grp_ids[j] = bp->grp_info[grp_idx].fw_grp_id; 5567 } 5568 5569 vnic_no_ring_grps: 5570 for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) 5571 vnic->fw_rss_cos_lb_ctx[i] = INVALID_HW_RING_ID; 5572 if (vnic_id == 0) 5573 req->flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT); 5574 5575 resp = hwrm_req_hold(bp, req); 5576 rc = hwrm_req_send(bp, req); 5577 if (!rc) 5578 vnic->fw_vnic_id = le32_to_cpu(resp->vnic_id); 5579 hwrm_req_drop(bp, req); 5580 return rc; 5581 } 5582 5583 static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp) 5584 { 5585 struct hwrm_vnic_qcaps_output *resp; 5586 struct hwrm_vnic_qcaps_input *req; 5587 int rc; 5588 5589 bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats); 5590 bp->flags &= ~(BNXT_FLAG_NEW_RSS_CAP | BNXT_FLAG_ROCE_MIRROR_CAP); 5591 if (bp->hwrm_spec_code < 0x10600) 5592 return 0; 5593 5594 rc = hwrm_req_init(bp, req, HWRM_VNIC_QCAPS); 5595 if (rc) 5596 return rc; 5597 5598 resp = hwrm_req_hold(bp, req); 5599 rc = hwrm_req_send(bp, req); 5600 if (!rc) { 5601 u32 flags = le32_to_cpu(resp->flags); 5602 5603 if (!(bp->flags & BNXT_FLAG_CHIP_P5) && 5604 (flags & VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP)) 5605 bp->flags |= BNXT_FLAG_NEW_RSS_CAP; 5606 if (flags & 5607 VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP) 5608 bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP; 5609 5610 /* Older P5 fw before EXT_HW_STATS support did not set 5611 * VLAN_STRIP_CAP properly. 5612 */ 5613 if ((flags & VNIC_QCAPS_RESP_FLAGS_VLAN_STRIP_CAP) || 5614 (BNXT_CHIP_P5_THOR(bp) && 5615 !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))) 5616 bp->fw_cap |= BNXT_FW_CAP_VLAN_RX_STRIP; 5617 bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported); 5618 if (bp->max_tpa_v2) { 5619 if (BNXT_CHIP_P5_THOR(bp)) 5620 bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5; 5621 else 5622 bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5_SR2; 5623 } 5624 } 5625 hwrm_req_drop(bp, req); 5626 return rc; 5627 } 5628 5629 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp) 5630 { 5631 struct hwrm_ring_grp_alloc_output *resp; 5632 struct hwrm_ring_grp_alloc_input *req; 5633 int rc; 5634 u16 i; 5635 5636 if (bp->flags & BNXT_FLAG_CHIP_P5) 5637 return 0; 5638 5639 rc = hwrm_req_init(bp, req, HWRM_RING_GRP_ALLOC); 5640 if (rc) 5641 return rc; 5642 5643 resp = hwrm_req_hold(bp, req); 5644 for (i = 0; i < bp->rx_nr_rings; i++) { 5645 unsigned int grp_idx = bp->rx_ring[i].bnapi->index; 5646 5647 req->cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id); 5648 req->rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id); 5649 req->ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id); 5650 req->sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx); 5651 5652 rc = hwrm_req_send(bp, req); 5653 5654 if (rc) 5655 break; 5656 5657 bp->grp_info[grp_idx].fw_grp_id = 5658 le32_to_cpu(resp->ring_group_id); 5659 } 5660 hwrm_req_drop(bp, req); 5661 return rc; 5662 } 5663 5664 static void bnxt_hwrm_ring_grp_free(struct bnxt *bp) 5665 { 5666 struct hwrm_ring_grp_free_input *req; 5667 u16 i; 5668 5669 if (!bp->grp_info || (bp->flags & BNXT_FLAG_CHIP_P5)) 5670 return; 5671 5672 if (hwrm_req_init(bp, req, HWRM_RING_GRP_FREE)) 5673 return; 5674 5675 hwrm_req_hold(bp, req); 5676 for (i = 0; i < bp->cp_nr_rings; i++) { 5677 if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID) 5678 continue; 5679 req->ring_group_id = 5680 cpu_to_le32(bp->grp_info[i].fw_grp_id); 5681 5682 hwrm_req_send(bp, req); 5683 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 5684 } 5685 hwrm_req_drop(bp, req); 5686 } 5687 5688 static int hwrm_ring_alloc_send_msg(struct bnxt *bp, 5689 struct bnxt_ring_struct *ring, 5690 u32 ring_type, u32 map_index) 5691 { 5692 struct hwrm_ring_alloc_output *resp; 5693 struct hwrm_ring_alloc_input *req; 5694 struct bnxt_ring_mem_info *rmem = &ring->ring_mem; 5695 struct bnxt_ring_grp_info *grp_info; 5696 int rc, err = 0; 5697 u16 ring_id; 5698 5699 rc = hwrm_req_init(bp, req, HWRM_RING_ALLOC); 5700 if (rc) 5701 goto exit; 5702 5703 req->enables = 0; 5704 if (rmem->nr_pages > 1) { 5705 req->page_tbl_addr = cpu_to_le64(rmem->pg_tbl_map); 5706 /* Page size is in log2 units */ 5707 req->page_size = BNXT_PAGE_SHIFT; 5708 req->page_tbl_depth = 1; 5709 } else { 5710 req->page_tbl_addr = cpu_to_le64(rmem->dma_arr[0]); 5711 } 5712 req->fbo = 0; 5713 /* Association of ring index with doorbell index and MSIX number */ 5714 req->logical_id = cpu_to_le16(map_index); 5715 5716 switch (ring_type) { 5717 case HWRM_RING_ALLOC_TX: { 5718 struct bnxt_tx_ring_info *txr; 5719 5720 txr = container_of(ring, struct bnxt_tx_ring_info, 5721 tx_ring_struct); 5722 req->ring_type = RING_ALLOC_REQ_RING_TYPE_TX; 5723 /* Association of transmit ring with completion ring */ 5724 grp_info = &bp->grp_info[ring->grp_idx]; 5725 req->cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_tx(bp, txr)); 5726 req->length = cpu_to_le32(bp->tx_ring_mask + 1); 5727 req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); 5728 req->queue_id = cpu_to_le16(ring->queue_id); 5729 break; 5730 } 5731 case HWRM_RING_ALLOC_RX: 5732 req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX; 5733 req->length = cpu_to_le32(bp->rx_ring_mask + 1); 5734 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5735 u16 flags = 0; 5736 5737 /* Association of rx ring with stats context */ 5738 grp_info = &bp->grp_info[ring->grp_idx]; 5739 req->rx_buf_size = cpu_to_le16(bp->rx_buf_use_size); 5740 req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); 5741 req->enables |= cpu_to_le32( 5742 RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID); 5743 if (NET_IP_ALIGN == 2) 5744 flags = RING_ALLOC_REQ_FLAGS_RX_SOP_PAD; 5745 req->flags = cpu_to_le16(flags); 5746 } 5747 break; 5748 case HWRM_RING_ALLOC_AGG: 5749 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5750 req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX_AGG; 5751 /* Association of agg ring with rx ring */ 5752 grp_info = &bp->grp_info[ring->grp_idx]; 5753 req->rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id); 5754 req->rx_buf_size = cpu_to_le16(BNXT_RX_PAGE_SIZE); 5755 req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); 5756 req->enables |= cpu_to_le32( 5757 RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID | 5758 RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID); 5759 } else { 5760 req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX; 5761 } 5762 req->length = cpu_to_le32(bp->rx_agg_ring_mask + 1); 5763 break; 5764 case HWRM_RING_ALLOC_CMPL: 5765 req->ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL; 5766 req->length = cpu_to_le32(bp->cp_ring_mask + 1); 5767 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5768 /* Association of cp ring with nq */ 5769 grp_info = &bp->grp_info[map_index]; 5770 req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id); 5771 req->cq_handle = cpu_to_le64(ring->handle); 5772 req->enables |= cpu_to_le32( 5773 RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID); 5774 } else if (bp->flags & BNXT_FLAG_USING_MSIX) { 5775 req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; 5776 } 5777 break; 5778 case HWRM_RING_ALLOC_NQ: 5779 req->ring_type = RING_ALLOC_REQ_RING_TYPE_NQ; 5780 req->length = cpu_to_le32(bp->cp_ring_mask + 1); 5781 if (bp->flags & BNXT_FLAG_USING_MSIX) 5782 req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; 5783 break; 5784 default: 5785 netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n", 5786 ring_type); 5787 return -1; 5788 } 5789 5790 resp = hwrm_req_hold(bp, req); 5791 rc = hwrm_req_send(bp, req); 5792 err = le16_to_cpu(resp->error_code); 5793 ring_id = le16_to_cpu(resp->ring_id); 5794 hwrm_req_drop(bp, req); 5795 5796 exit: 5797 if (rc || err) { 5798 netdev_err(bp->dev, "hwrm_ring_alloc type %d failed. rc:%x err:%x\n", 5799 ring_type, rc, err); 5800 return -EIO; 5801 } 5802 ring->fw_ring_id = ring_id; 5803 return rc; 5804 } 5805 5806 static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx) 5807 { 5808 int rc; 5809 5810 if (BNXT_PF(bp)) { 5811 struct hwrm_func_cfg_input *req; 5812 5813 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); 5814 if (rc) 5815 return rc; 5816 5817 req->fid = cpu_to_le16(0xffff); 5818 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 5819 req->async_event_cr = cpu_to_le16(idx); 5820 return hwrm_req_send(bp, req); 5821 } else { 5822 struct hwrm_func_vf_cfg_input *req; 5823 5824 rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG); 5825 if (rc) 5826 return rc; 5827 5828 req->enables = 5829 cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 5830 req->async_event_cr = cpu_to_le16(idx); 5831 return hwrm_req_send(bp, req); 5832 } 5833 } 5834 5835 static void bnxt_set_db(struct bnxt *bp, struct bnxt_db_info *db, u32 ring_type, 5836 u32 map_idx, u32 xid) 5837 { 5838 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5839 if (BNXT_PF(bp)) 5840 db->doorbell = bp->bar1 + DB_PF_OFFSET_P5; 5841 else 5842 db->doorbell = bp->bar1 + DB_VF_OFFSET_P5; 5843 switch (ring_type) { 5844 case HWRM_RING_ALLOC_TX: 5845 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ; 5846 break; 5847 case HWRM_RING_ALLOC_RX: 5848 case HWRM_RING_ALLOC_AGG: 5849 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ; 5850 break; 5851 case HWRM_RING_ALLOC_CMPL: 5852 db->db_key64 = DBR_PATH_L2; 5853 break; 5854 case HWRM_RING_ALLOC_NQ: 5855 db->db_key64 = DBR_PATH_L2; 5856 break; 5857 } 5858 db->db_key64 |= (u64)xid << DBR_XID_SFT; 5859 } else { 5860 db->doorbell = bp->bar1 + map_idx * 0x80; 5861 switch (ring_type) { 5862 case HWRM_RING_ALLOC_TX: 5863 db->db_key32 = DB_KEY_TX; 5864 break; 5865 case HWRM_RING_ALLOC_RX: 5866 case HWRM_RING_ALLOC_AGG: 5867 db->db_key32 = DB_KEY_RX; 5868 break; 5869 case HWRM_RING_ALLOC_CMPL: 5870 db->db_key32 = DB_KEY_CP; 5871 break; 5872 } 5873 } 5874 } 5875 5876 static int bnxt_hwrm_ring_alloc(struct bnxt *bp) 5877 { 5878 bool agg_rings = !!(bp->flags & BNXT_FLAG_AGG_RINGS); 5879 int i, rc = 0; 5880 u32 type; 5881 5882 if (bp->flags & BNXT_FLAG_CHIP_P5) 5883 type = HWRM_RING_ALLOC_NQ; 5884 else 5885 type = HWRM_RING_ALLOC_CMPL; 5886 for (i = 0; i < bp->cp_nr_rings; i++) { 5887 struct bnxt_napi *bnapi = bp->bnapi[i]; 5888 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5889 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 5890 u32 map_idx = ring->map_idx; 5891 unsigned int vector; 5892 5893 vector = bp->irq_tbl[map_idx].vector; 5894 disable_irq_nosync(vector); 5895 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); 5896 if (rc) { 5897 enable_irq(vector); 5898 goto err_out; 5899 } 5900 bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id); 5901 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); 5902 enable_irq(vector); 5903 bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id; 5904 5905 if (!i) { 5906 rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id); 5907 if (rc) 5908 netdev_warn(bp->dev, "Failed to set async event completion ring.\n"); 5909 } 5910 } 5911 5912 type = HWRM_RING_ALLOC_TX; 5913 for (i = 0; i < bp->tx_nr_rings; i++) { 5914 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 5915 struct bnxt_ring_struct *ring; 5916 u32 map_idx; 5917 5918 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5919 struct bnxt_napi *bnapi = txr->bnapi; 5920 struct bnxt_cp_ring_info *cpr, *cpr2; 5921 u32 type2 = HWRM_RING_ALLOC_CMPL; 5922 5923 cpr = &bnapi->cp_ring; 5924 cpr2 = cpr->cp_ring_arr[BNXT_TX_HDL]; 5925 ring = &cpr2->cp_ring_struct; 5926 ring->handle = BNXT_TX_HDL; 5927 map_idx = bnapi->index; 5928 rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx); 5929 if (rc) 5930 goto err_out; 5931 bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx, 5932 ring->fw_ring_id); 5933 bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons); 5934 } 5935 ring = &txr->tx_ring_struct; 5936 map_idx = i; 5937 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); 5938 if (rc) 5939 goto err_out; 5940 bnxt_set_db(bp, &txr->tx_db, type, map_idx, ring->fw_ring_id); 5941 } 5942 5943 type = HWRM_RING_ALLOC_RX; 5944 for (i = 0; i < bp->rx_nr_rings; i++) { 5945 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 5946 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 5947 struct bnxt_napi *bnapi = rxr->bnapi; 5948 u32 map_idx = bnapi->index; 5949 5950 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); 5951 if (rc) 5952 goto err_out; 5953 bnxt_set_db(bp, &rxr->rx_db, type, map_idx, ring->fw_ring_id); 5954 /* If we have agg rings, post agg buffers first. */ 5955 if (!agg_rings) 5956 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 5957 bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id; 5958 if (bp->flags & BNXT_FLAG_CHIP_P5) { 5959 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5960 u32 type2 = HWRM_RING_ALLOC_CMPL; 5961 struct bnxt_cp_ring_info *cpr2; 5962 5963 cpr2 = cpr->cp_ring_arr[BNXT_RX_HDL]; 5964 ring = &cpr2->cp_ring_struct; 5965 ring->handle = BNXT_RX_HDL; 5966 rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx); 5967 if (rc) 5968 goto err_out; 5969 bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx, 5970 ring->fw_ring_id); 5971 bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons); 5972 } 5973 } 5974 5975 if (agg_rings) { 5976 type = HWRM_RING_ALLOC_AGG; 5977 for (i = 0; i < bp->rx_nr_rings; i++) { 5978 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 5979 struct bnxt_ring_struct *ring = 5980 &rxr->rx_agg_ring_struct; 5981 u32 grp_idx = ring->grp_idx; 5982 u32 map_idx = grp_idx + bp->rx_nr_rings; 5983 5984 rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); 5985 if (rc) 5986 goto err_out; 5987 5988 bnxt_set_db(bp, &rxr->rx_agg_db, type, map_idx, 5989 ring->fw_ring_id); 5990 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 5991 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 5992 bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id; 5993 } 5994 } 5995 err_out: 5996 return rc; 5997 } 5998 5999 static int hwrm_ring_free_send_msg(struct bnxt *bp, 6000 struct bnxt_ring_struct *ring, 6001 u32 ring_type, int cmpl_ring_id) 6002 { 6003 struct hwrm_ring_free_output *resp; 6004 struct hwrm_ring_free_input *req; 6005 u16 error_code = 0; 6006 int rc; 6007 6008 if (BNXT_NO_FW_ACCESS(bp)) 6009 return 0; 6010 6011 rc = hwrm_req_init(bp, req, HWRM_RING_FREE); 6012 if (rc) 6013 goto exit; 6014 6015 req->cmpl_ring = cpu_to_le16(cmpl_ring_id); 6016 req->ring_type = ring_type; 6017 req->ring_id = cpu_to_le16(ring->fw_ring_id); 6018 6019 resp = hwrm_req_hold(bp, req); 6020 rc = hwrm_req_send(bp, req); 6021 error_code = le16_to_cpu(resp->error_code); 6022 hwrm_req_drop(bp, req); 6023 exit: 6024 if (rc || error_code) { 6025 netdev_err(bp->dev, "hwrm_ring_free type %d failed. rc:%x err:%x\n", 6026 ring_type, rc, error_code); 6027 return -EIO; 6028 } 6029 return 0; 6030 } 6031 6032 static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path) 6033 { 6034 u32 type; 6035 int i; 6036 6037 if (!bp->bnapi) 6038 return; 6039 6040 for (i = 0; i < bp->tx_nr_rings; i++) { 6041 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 6042 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 6043 6044 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 6045 u32 cmpl_ring_id = bnxt_cp_ring_for_tx(bp, txr); 6046 6047 hwrm_ring_free_send_msg(bp, ring, 6048 RING_FREE_REQ_RING_TYPE_TX, 6049 close_path ? cmpl_ring_id : 6050 INVALID_HW_RING_ID); 6051 ring->fw_ring_id = INVALID_HW_RING_ID; 6052 } 6053 } 6054 6055 for (i = 0; i < bp->rx_nr_rings; i++) { 6056 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 6057 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 6058 u32 grp_idx = rxr->bnapi->index; 6059 6060 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 6061 u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); 6062 6063 hwrm_ring_free_send_msg(bp, ring, 6064 RING_FREE_REQ_RING_TYPE_RX, 6065 close_path ? cmpl_ring_id : 6066 INVALID_HW_RING_ID); 6067 ring->fw_ring_id = INVALID_HW_RING_ID; 6068 bp->grp_info[grp_idx].rx_fw_ring_id = 6069 INVALID_HW_RING_ID; 6070 } 6071 } 6072 6073 if (bp->flags & BNXT_FLAG_CHIP_P5) 6074 type = RING_FREE_REQ_RING_TYPE_RX_AGG; 6075 else 6076 type = RING_FREE_REQ_RING_TYPE_RX; 6077 for (i = 0; i < bp->rx_nr_rings; i++) { 6078 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 6079 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; 6080 u32 grp_idx = rxr->bnapi->index; 6081 6082 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 6083 u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); 6084 6085 hwrm_ring_free_send_msg(bp, ring, type, 6086 close_path ? cmpl_ring_id : 6087 INVALID_HW_RING_ID); 6088 ring->fw_ring_id = INVALID_HW_RING_ID; 6089 bp->grp_info[grp_idx].agg_fw_ring_id = 6090 INVALID_HW_RING_ID; 6091 } 6092 } 6093 6094 /* The completion rings are about to be freed. After that the 6095 * IRQ doorbell will not work anymore. So we need to disable 6096 * IRQ here. 6097 */ 6098 bnxt_disable_int_sync(bp); 6099 6100 if (bp->flags & BNXT_FLAG_CHIP_P5) 6101 type = RING_FREE_REQ_RING_TYPE_NQ; 6102 else 6103 type = RING_FREE_REQ_RING_TYPE_L2_CMPL; 6104 for (i = 0; i < bp->cp_nr_rings; i++) { 6105 struct bnxt_napi *bnapi = bp->bnapi[i]; 6106 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6107 struct bnxt_ring_struct *ring; 6108 int j; 6109 6110 for (j = 0; j < 2; j++) { 6111 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; 6112 6113 if (cpr2) { 6114 ring = &cpr2->cp_ring_struct; 6115 if (ring->fw_ring_id == INVALID_HW_RING_ID) 6116 continue; 6117 hwrm_ring_free_send_msg(bp, ring, 6118 RING_FREE_REQ_RING_TYPE_L2_CMPL, 6119 INVALID_HW_RING_ID); 6120 ring->fw_ring_id = INVALID_HW_RING_ID; 6121 } 6122 } 6123 ring = &cpr->cp_ring_struct; 6124 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 6125 hwrm_ring_free_send_msg(bp, ring, type, 6126 INVALID_HW_RING_ID); 6127 ring->fw_ring_id = INVALID_HW_RING_ID; 6128 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 6129 } 6130 } 6131 } 6132 6133 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 6134 bool shared); 6135 6136 static int bnxt_hwrm_get_rings(struct bnxt *bp) 6137 { 6138 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 6139 struct hwrm_func_qcfg_output *resp; 6140 struct hwrm_func_qcfg_input *req; 6141 int rc; 6142 6143 if (bp->hwrm_spec_code < 0x10601) 6144 return 0; 6145 6146 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 6147 if (rc) 6148 return rc; 6149 6150 req->fid = cpu_to_le16(0xffff); 6151 resp = hwrm_req_hold(bp, req); 6152 rc = hwrm_req_send(bp, req); 6153 if (rc) { 6154 hwrm_req_drop(bp, req); 6155 return rc; 6156 } 6157 6158 hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings); 6159 if (BNXT_NEW_RM(bp)) { 6160 u16 cp, stats; 6161 6162 hw_resc->resv_rx_rings = le16_to_cpu(resp->alloc_rx_rings); 6163 hw_resc->resv_hw_ring_grps = 6164 le32_to_cpu(resp->alloc_hw_ring_grps); 6165 hw_resc->resv_vnics = le16_to_cpu(resp->alloc_vnics); 6166 cp = le16_to_cpu(resp->alloc_cmpl_rings); 6167 stats = le16_to_cpu(resp->alloc_stat_ctx); 6168 hw_resc->resv_irqs = cp; 6169 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6170 int rx = hw_resc->resv_rx_rings; 6171 int tx = hw_resc->resv_tx_rings; 6172 6173 if (bp->flags & BNXT_FLAG_AGG_RINGS) 6174 rx >>= 1; 6175 if (cp < (rx + tx)) { 6176 bnxt_trim_rings(bp, &rx, &tx, cp, false); 6177 if (bp->flags & BNXT_FLAG_AGG_RINGS) 6178 rx <<= 1; 6179 hw_resc->resv_rx_rings = rx; 6180 hw_resc->resv_tx_rings = tx; 6181 } 6182 hw_resc->resv_irqs = le16_to_cpu(resp->alloc_msix); 6183 hw_resc->resv_hw_ring_grps = rx; 6184 } 6185 hw_resc->resv_cp_rings = cp; 6186 hw_resc->resv_stat_ctxs = stats; 6187 } 6188 hwrm_req_drop(bp, req); 6189 return 0; 6190 } 6191 6192 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings) 6193 { 6194 struct hwrm_func_qcfg_output *resp; 6195 struct hwrm_func_qcfg_input *req; 6196 int rc; 6197 6198 if (bp->hwrm_spec_code < 0x10601) 6199 return 0; 6200 6201 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 6202 if (rc) 6203 return rc; 6204 6205 req->fid = cpu_to_le16(fid); 6206 resp = hwrm_req_hold(bp, req); 6207 rc = hwrm_req_send(bp, req); 6208 if (!rc) 6209 *tx_rings = le16_to_cpu(resp->alloc_tx_rings); 6210 6211 hwrm_req_drop(bp, req); 6212 return rc; 6213 } 6214 6215 static bool bnxt_rfs_supported(struct bnxt *bp); 6216 6217 static struct hwrm_func_cfg_input * 6218 __bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6219 int ring_grps, int cp_rings, int stats, int vnics) 6220 { 6221 struct hwrm_func_cfg_input *req; 6222 u32 enables = 0; 6223 6224 if (hwrm_req_init(bp, req, HWRM_FUNC_CFG)) 6225 return NULL; 6226 6227 req->fid = cpu_to_le16(0xffff); 6228 enables |= tx_rings ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; 6229 req->num_tx_rings = cpu_to_le16(tx_rings); 6230 if (BNXT_NEW_RM(bp)) { 6231 enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0; 6232 enables |= stats ? FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; 6233 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6234 enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_MSIX : 0; 6235 enables |= tx_rings + ring_grps ? 6236 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 6237 enables |= rx_rings ? 6238 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; 6239 } else { 6240 enables |= cp_rings ? 6241 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 6242 enables |= ring_grps ? 6243 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS | 6244 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; 6245 } 6246 enables |= vnics ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0; 6247 6248 req->num_rx_rings = cpu_to_le16(rx_rings); 6249 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6250 req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps); 6251 req->num_msix = cpu_to_le16(cp_rings); 6252 req->num_rsscos_ctxs = 6253 cpu_to_le16(DIV_ROUND_UP(ring_grps, 64)); 6254 } else { 6255 req->num_cmpl_rings = cpu_to_le16(cp_rings); 6256 req->num_hw_ring_grps = cpu_to_le16(ring_grps); 6257 req->num_rsscos_ctxs = cpu_to_le16(1); 6258 if (!(bp->flags & BNXT_FLAG_NEW_RSS_CAP) && 6259 bnxt_rfs_supported(bp)) 6260 req->num_rsscos_ctxs = 6261 cpu_to_le16(ring_grps + 1); 6262 } 6263 req->num_stat_ctxs = cpu_to_le16(stats); 6264 req->num_vnics = cpu_to_le16(vnics); 6265 } 6266 req->enables = cpu_to_le32(enables); 6267 return req; 6268 } 6269 6270 static struct hwrm_func_vf_cfg_input * 6271 __bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6272 int ring_grps, int cp_rings, int stats, int vnics) 6273 { 6274 struct hwrm_func_vf_cfg_input *req; 6275 u32 enables = 0; 6276 6277 if (hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG)) 6278 return NULL; 6279 6280 enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; 6281 enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS | 6282 FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; 6283 enables |= stats ? FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; 6284 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6285 enables |= tx_rings + ring_grps ? 6286 FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 6287 } else { 6288 enables |= cp_rings ? 6289 FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 6290 enables |= ring_grps ? 6291 FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0; 6292 } 6293 enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0; 6294 enables |= FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS; 6295 6296 req->num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX); 6297 req->num_tx_rings = cpu_to_le16(tx_rings); 6298 req->num_rx_rings = cpu_to_le16(rx_rings); 6299 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6300 req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps); 6301 req->num_rsscos_ctxs = cpu_to_le16(DIV_ROUND_UP(ring_grps, 64)); 6302 } else { 6303 req->num_cmpl_rings = cpu_to_le16(cp_rings); 6304 req->num_hw_ring_grps = cpu_to_le16(ring_grps); 6305 req->num_rsscos_ctxs = cpu_to_le16(BNXT_VF_MAX_RSS_CTX); 6306 } 6307 req->num_stat_ctxs = cpu_to_le16(stats); 6308 req->num_vnics = cpu_to_le16(vnics); 6309 6310 req->enables = cpu_to_le32(enables); 6311 return req; 6312 } 6313 6314 static int 6315 bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6316 int ring_grps, int cp_rings, int stats, int vnics) 6317 { 6318 struct hwrm_func_cfg_input *req; 6319 int rc; 6320 6321 req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps, 6322 cp_rings, stats, vnics); 6323 if (!req) 6324 return -ENOMEM; 6325 6326 if (!req->enables) { 6327 hwrm_req_drop(bp, req); 6328 return 0; 6329 } 6330 6331 rc = hwrm_req_send(bp, req); 6332 if (rc) 6333 return rc; 6334 6335 if (bp->hwrm_spec_code < 0x10601) 6336 bp->hw_resc.resv_tx_rings = tx_rings; 6337 6338 return bnxt_hwrm_get_rings(bp); 6339 } 6340 6341 static int 6342 bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6343 int ring_grps, int cp_rings, int stats, int vnics) 6344 { 6345 struct hwrm_func_vf_cfg_input *req; 6346 int rc; 6347 6348 if (!BNXT_NEW_RM(bp)) { 6349 bp->hw_resc.resv_tx_rings = tx_rings; 6350 return 0; 6351 } 6352 6353 req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps, 6354 cp_rings, stats, vnics); 6355 if (!req) 6356 return -ENOMEM; 6357 6358 rc = hwrm_req_send(bp, req); 6359 if (rc) 6360 return rc; 6361 6362 return bnxt_hwrm_get_rings(bp); 6363 } 6364 6365 static int bnxt_hwrm_reserve_rings(struct bnxt *bp, int tx, int rx, int grp, 6366 int cp, int stat, int vnic) 6367 { 6368 if (BNXT_PF(bp)) 6369 return bnxt_hwrm_reserve_pf_rings(bp, tx, rx, grp, cp, stat, 6370 vnic); 6371 else 6372 return bnxt_hwrm_reserve_vf_rings(bp, tx, rx, grp, cp, stat, 6373 vnic); 6374 } 6375 6376 int bnxt_nq_rings_in_use(struct bnxt *bp) 6377 { 6378 int cp = bp->cp_nr_rings; 6379 int ulp_msix, ulp_base; 6380 6381 ulp_msix = bnxt_get_ulp_msix_num(bp); 6382 if (ulp_msix) { 6383 ulp_base = bnxt_get_ulp_msix_base(bp); 6384 cp += ulp_msix; 6385 if ((ulp_base + ulp_msix) > cp) 6386 cp = ulp_base + ulp_msix; 6387 } 6388 return cp; 6389 } 6390 6391 static int bnxt_cp_rings_in_use(struct bnxt *bp) 6392 { 6393 int cp; 6394 6395 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 6396 return bnxt_nq_rings_in_use(bp); 6397 6398 cp = bp->tx_nr_rings + bp->rx_nr_rings; 6399 return cp; 6400 } 6401 6402 static int bnxt_get_func_stat_ctxs(struct bnxt *bp) 6403 { 6404 int ulp_stat = bnxt_get_ulp_stat_ctxs(bp); 6405 int cp = bp->cp_nr_rings; 6406 6407 if (!ulp_stat) 6408 return cp; 6409 6410 if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp)) 6411 return bnxt_get_ulp_msix_base(bp) + ulp_stat; 6412 6413 return cp + ulp_stat; 6414 } 6415 6416 /* Check if a default RSS map needs to be setup. This function is only 6417 * used on older firmware that does not require reserving RX rings. 6418 */ 6419 static void bnxt_check_rss_tbl_no_rmgr(struct bnxt *bp) 6420 { 6421 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 6422 6423 /* The RSS map is valid for RX rings set to resv_rx_rings */ 6424 if (hw_resc->resv_rx_rings != bp->rx_nr_rings) { 6425 hw_resc->resv_rx_rings = bp->rx_nr_rings; 6426 if (!netif_is_rxfh_configured(bp->dev)) 6427 bnxt_set_dflt_rss_indir_tbl(bp); 6428 } 6429 } 6430 6431 static bool bnxt_need_reserve_rings(struct bnxt *bp) 6432 { 6433 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 6434 int cp = bnxt_cp_rings_in_use(bp); 6435 int nq = bnxt_nq_rings_in_use(bp); 6436 int rx = bp->rx_nr_rings, stat; 6437 int vnic = 1, grp = rx; 6438 6439 if (hw_resc->resv_tx_rings != bp->tx_nr_rings && 6440 bp->hwrm_spec_code >= 0x10601) 6441 return true; 6442 6443 /* Old firmware does not need RX ring reservations but we still 6444 * need to setup a default RSS map when needed. With new firmware 6445 * we go through RX ring reservations first and then set up the 6446 * RSS map for the successfully reserved RX rings when needed. 6447 */ 6448 if (!BNXT_NEW_RM(bp)) { 6449 bnxt_check_rss_tbl_no_rmgr(bp); 6450 return false; 6451 } 6452 if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5)) 6453 vnic = rx + 1; 6454 if (bp->flags & BNXT_FLAG_AGG_RINGS) 6455 rx <<= 1; 6456 stat = bnxt_get_func_stat_ctxs(bp); 6457 if (hw_resc->resv_rx_rings != rx || hw_resc->resv_cp_rings != cp || 6458 hw_resc->resv_vnics != vnic || hw_resc->resv_stat_ctxs != stat || 6459 (hw_resc->resv_hw_ring_grps != grp && 6460 !(bp->flags & BNXT_FLAG_CHIP_P5))) 6461 return true; 6462 if ((bp->flags & BNXT_FLAG_CHIP_P5) && BNXT_PF(bp) && 6463 hw_resc->resv_irqs != nq) 6464 return true; 6465 return false; 6466 } 6467 6468 static int __bnxt_reserve_rings(struct bnxt *bp) 6469 { 6470 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 6471 int cp = bnxt_nq_rings_in_use(bp); 6472 int tx = bp->tx_nr_rings; 6473 int rx = bp->rx_nr_rings; 6474 int grp, rx_rings, rc; 6475 int vnic = 1, stat; 6476 bool sh = false; 6477 6478 if (!bnxt_need_reserve_rings(bp)) 6479 return 0; 6480 6481 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 6482 sh = true; 6483 if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5)) 6484 vnic = rx + 1; 6485 if (bp->flags & BNXT_FLAG_AGG_RINGS) 6486 rx <<= 1; 6487 grp = bp->rx_nr_rings; 6488 stat = bnxt_get_func_stat_ctxs(bp); 6489 6490 rc = bnxt_hwrm_reserve_rings(bp, tx, rx, grp, cp, stat, vnic); 6491 if (rc) 6492 return rc; 6493 6494 tx = hw_resc->resv_tx_rings; 6495 if (BNXT_NEW_RM(bp)) { 6496 rx = hw_resc->resv_rx_rings; 6497 cp = hw_resc->resv_irqs; 6498 grp = hw_resc->resv_hw_ring_grps; 6499 vnic = hw_resc->resv_vnics; 6500 stat = hw_resc->resv_stat_ctxs; 6501 } 6502 6503 rx_rings = rx; 6504 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 6505 if (rx >= 2) { 6506 rx_rings = rx >> 1; 6507 } else { 6508 if (netif_running(bp->dev)) 6509 return -ENOMEM; 6510 6511 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 6512 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 6513 bp->dev->hw_features &= ~NETIF_F_LRO; 6514 bp->dev->features &= ~NETIF_F_LRO; 6515 bnxt_set_ring_params(bp); 6516 } 6517 } 6518 rx_rings = min_t(int, rx_rings, grp); 6519 cp = min_t(int, cp, bp->cp_nr_rings); 6520 if (stat > bnxt_get_ulp_stat_ctxs(bp)) 6521 stat -= bnxt_get_ulp_stat_ctxs(bp); 6522 cp = min_t(int, cp, stat); 6523 rc = bnxt_trim_rings(bp, &rx_rings, &tx, cp, sh); 6524 if (bp->flags & BNXT_FLAG_AGG_RINGS) 6525 rx = rx_rings << 1; 6526 cp = sh ? max_t(int, tx, rx_rings) : tx + rx_rings; 6527 bp->tx_nr_rings = tx; 6528 6529 /* If we cannot reserve all the RX rings, reset the RSS map only 6530 * if absolutely necessary 6531 */ 6532 if (rx_rings != bp->rx_nr_rings) { 6533 netdev_warn(bp->dev, "Able to reserve only %d out of %d requested RX rings\n", 6534 rx_rings, bp->rx_nr_rings); 6535 if (netif_is_rxfh_configured(bp->dev) && 6536 (bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings) != 6537 bnxt_get_nr_rss_ctxs(bp, rx_rings) || 6538 bnxt_get_max_rss_ring(bp) >= rx_rings)) { 6539 netdev_warn(bp->dev, "RSS table entries reverting to default\n"); 6540 bp->dev->priv_flags &= ~IFF_RXFH_CONFIGURED; 6541 } 6542 } 6543 bp->rx_nr_rings = rx_rings; 6544 bp->cp_nr_rings = cp; 6545 6546 if (!tx || !rx || !cp || !grp || !vnic || !stat) 6547 return -ENOMEM; 6548 6549 if (!netif_is_rxfh_configured(bp->dev)) 6550 bnxt_set_dflt_rss_indir_tbl(bp); 6551 6552 return rc; 6553 } 6554 6555 static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6556 int ring_grps, int cp_rings, int stats, 6557 int vnics) 6558 { 6559 struct hwrm_func_vf_cfg_input *req; 6560 u32 flags; 6561 6562 if (!BNXT_NEW_RM(bp)) 6563 return 0; 6564 6565 req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps, 6566 cp_rings, stats, vnics); 6567 flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST | 6568 FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST | 6569 FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | 6570 FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | 6571 FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST | 6572 FUNC_VF_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST; 6573 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 6574 flags |= FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; 6575 6576 req->flags = cpu_to_le32(flags); 6577 return hwrm_req_send_silent(bp, req); 6578 } 6579 6580 static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6581 int ring_grps, int cp_rings, int stats, 6582 int vnics) 6583 { 6584 struct hwrm_func_cfg_input *req; 6585 u32 flags; 6586 6587 req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps, 6588 cp_rings, stats, vnics); 6589 flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST; 6590 if (BNXT_NEW_RM(bp)) { 6591 flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST | 6592 FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | 6593 FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | 6594 FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST; 6595 if (bp->flags & BNXT_FLAG_CHIP_P5) 6596 flags |= FUNC_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST | 6597 FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST; 6598 else 6599 flags |= FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; 6600 } 6601 6602 req->flags = cpu_to_le32(flags); 6603 return hwrm_req_send_silent(bp, req); 6604 } 6605 6606 static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings, 6607 int ring_grps, int cp_rings, int stats, 6608 int vnics) 6609 { 6610 if (bp->hwrm_spec_code < 0x10801) 6611 return 0; 6612 6613 if (BNXT_PF(bp)) 6614 return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings, 6615 ring_grps, cp_rings, stats, 6616 vnics); 6617 6618 return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps, 6619 cp_rings, stats, vnics); 6620 } 6621 6622 static void bnxt_hwrm_coal_params_qcaps(struct bnxt *bp) 6623 { 6624 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 6625 struct hwrm_ring_aggint_qcaps_output *resp; 6626 struct hwrm_ring_aggint_qcaps_input *req; 6627 int rc; 6628 6629 coal_cap->cmpl_params = BNXT_LEGACY_COAL_CMPL_PARAMS; 6630 coal_cap->num_cmpl_dma_aggr_max = 63; 6631 coal_cap->num_cmpl_dma_aggr_during_int_max = 63; 6632 coal_cap->cmpl_aggr_dma_tmr_max = 65535; 6633 coal_cap->cmpl_aggr_dma_tmr_during_int_max = 65535; 6634 coal_cap->int_lat_tmr_min_max = 65535; 6635 coal_cap->int_lat_tmr_max_max = 65535; 6636 coal_cap->num_cmpl_aggr_int_max = 65535; 6637 coal_cap->timer_units = 80; 6638 6639 if (bp->hwrm_spec_code < 0x10902) 6640 return; 6641 6642 if (hwrm_req_init(bp, req, HWRM_RING_AGGINT_QCAPS)) 6643 return; 6644 6645 resp = hwrm_req_hold(bp, req); 6646 rc = hwrm_req_send_silent(bp, req); 6647 if (!rc) { 6648 coal_cap->cmpl_params = le32_to_cpu(resp->cmpl_params); 6649 coal_cap->nq_params = le32_to_cpu(resp->nq_params); 6650 coal_cap->num_cmpl_dma_aggr_max = 6651 le16_to_cpu(resp->num_cmpl_dma_aggr_max); 6652 coal_cap->num_cmpl_dma_aggr_during_int_max = 6653 le16_to_cpu(resp->num_cmpl_dma_aggr_during_int_max); 6654 coal_cap->cmpl_aggr_dma_tmr_max = 6655 le16_to_cpu(resp->cmpl_aggr_dma_tmr_max); 6656 coal_cap->cmpl_aggr_dma_tmr_during_int_max = 6657 le16_to_cpu(resp->cmpl_aggr_dma_tmr_during_int_max); 6658 coal_cap->int_lat_tmr_min_max = 6659 le16_to_cpu(resp->int_lat_tmr_min_max); 6660 coal_cap->int_lat_tmr_max_max = 6661 le16_to_cpu(resp->int_lat_tmr_max_max); 6662 coal_cap->num_cmpl_aggr_int_max = 6663 le16_to_cpu(resp->num_cmpl_aggr_int_max); 6664 coal_cap->timer_units = le16_to_cpu(resp->timer_units); 6665 } 6666 hwrm_req_drop(bp, req); 6667 } 6668 6669 static u16 bnxt_usec_to_coal_tmr(struct bnxt *bp, u16 usec) 6670 { 6671 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 6672 6673 return usec * 1000 / coal_cap->timer_units; 6674 } 6675 6676 static void bnxt_hwrm_set_coal_params(struct bnxt *bp, 6677 struct bnxt_coal *hw_coal, 6678 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) 6679 { 6680 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 6681 u16 val, tmr, max, flags = hw_coal->flags; 6682 u32 cmpl_params = coal_cap->cmpl_params; 6683 6684 max = hw_coal->bufs_per_record * 128; 6685 if (hw_coal->budget) 6686 max = hw_coal->bufs_per_record * hw_coal->budget; 6687 max = min_t(u16, max, coal_cap->num_cmpl_aggr_int_max); 6688 6689 val = clamp_t(u16, hw_coal->coal_bufs, 1, max); 6690 req->num_cmpl_aggr_int = cpu_to_le16(val); 6691 6692 val = min_t(u16, val, coal_cap->num_cmpl_dma_aggr_max); 6693 req->num_cmpl_dma_aggr = cpu_to_le16(val); 6694 6695 val = clamp_t(u16, hw_coal->coal_bufs_irq, 1, 6696 coal_cap->num_cmpl_dma_aggr_during_int_max); 6697 req->num_cmpl_dma_aggr_during_int = cpu_to_le16(val); 6698 6699 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks); 6700 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_max_max); 6701 req->int_lat_tmr_max = cpu_to_le16(tmr); 6702 6703 /* min timer set to 1/2 of interrupt timer */ 6704 if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_INT_LAT_TMR_MIN) { 6705 val = tmr / 2; 6706 val = clamp_t(u16, val, 1, coal_cap->int_lat_tmr_min_max); 6707 req->int_lat_tmr_min = cpu_to_le16(val); 6708 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); 6709 } 6710 6711 /* buf timer set to 1/4 of interrupt timer */ 6712 val = clamp_t(u16, tmr / 4, 1, coal_cap->cmpl_aggr_dma_tmr_max); 6713 req->cmpl_aggr_dma_tmr = cpu_to_le16(val); 6714 6715 if (cmpl_params & 6716 RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_NUM_CMPL_DMA_AGGR_DURING_INT) { 6717 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks_irq); 6718 val = clamp_t(u16, tmr, 1, 6719 coal_cap->cmpl_aggr_dma_tmr_during_int_max); 6720 req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(val); 6721 req->enables |= 6722 cpu_to_le16(BNXT_COAL_CMPL_AGGR_TMR_DURING_INT_ENABLE); 6723 } 6724 6725 if ((cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_RING_IDLE) && 6726 hw_coal->idle_thresh && hw_coal->coal_ticks < hw_coal->idle_thresh) 6727 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE; 6728 req->flags = cpu_to_le16(flags); 6729 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_ENABLES); 6730 } 6731 6732 static int __bnxt_hwrm_set_coal_nq(struct bnxt *bp, struct bnxt_napi *bnapi, 6733 struct bnxt_coal *hw_coal) 6734 { 6735 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req; 6736 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6737 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 6738 u32 nq_params = coal_cap->nq_params; 6739 u16 tmr; 6740 int rc; 6741 6742 if (!(nq_params & RING_AGGINT_QCAPS_RESP_NQ_PARAMS_INT_LAT_TMR_MIN)) 6743 return 0; 6744 6745 rc = hwrm_req_init(bp, req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 6746 if (rc) 6747 return rc; 6748 6749 req->ring_id = cpu_to_le16(cpr->cp_ring_struct.fw_ring_id); 6750 req->flags = 6751 cpu_to_le16(RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_IS_NQ); 6752 6753 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks) / 2; 6754 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_min_max); 6755 req->int_lat_tmr_min = cpu_to_le16(tmr); 6756 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); 6757 return hwrm_req_send(bp, req); 6758 } 6759 6760 int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi) 6761 { 6762 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx; 6763 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6764 struct bnxt_coal coal; 6765 int rc; 6766 6767 /* Tick values in micro seconds. 6768 * 1 coal_buf x bufs_per_record = 1 completion record. 6769 */ 6770 memcpy(&coal, &bp->rx_coal, sizeof(struct bnxt_coal)); 6771 6772 coal.coal_ticks = cpr->rx_ring_coal.coal_ticks; 6773 coal.coal_bufs = cpr->rx_ring_coal.coal_bufs; 6774 6775 if (!bnapi->rx_ring) 6776 return -ENODEV; 6777 6778 rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 6779 if (rc) 6780 return rc; 6781 6782 bnxt_hwrm_set_coal_params(bp, &coal, req_rx); 6783 6784 req_rx->ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, bnapi->rx_ring)); 6785 6786 return hwrm_req_send(bp, req_rx); 6787 } 6788 6789 int bnxt_hwrm_set_coal(struct bnxt *bp) 6790 { 6791 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx, *req_tx, 6792 *req; 6793 int i, rc; 6794 6795 rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 6796 if (rc) 6797 return rc; 6798 6799 rc = hwrm_req_init(bp, req_tx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 6800 if (rc) { 6801 hwrm_req_drop(bp, req_rx); 6802 return rc; 6803 } 6804 6805 bnxt_hwrm_set_coal_params(bp, &bp->rx_coal, req_rx); 6806 bnxt_hwrm_set_coal_params(bp, &bp->tx_coal, req_tx); 6807 6808 hwrm_req_hold(bp, req_rx); 6809 hwrm_req_hold(bp, req_tx); 6810 for (i = 0; i < bp->cp_nr_rings; i++) { 6811 struct bnxt_napi *bnapi = bp->bnapi[i]; 6812 struct bnxt_coal *hw_coal; 6813 u16 ring_id; 6814 6815 req = req_rx; 6816 if (!bnapi->rx_ring) { 6817 ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring); 6818 req = req_tx; 6819 } else { 6820 ring_id = bnxt_cp_ring_for_rx(bp, bnapi->rx_ring); 6821 } 6822 req->ring_id = cpu_to_le16(ring_id); 6823 6824 rc = hwrm_req_send(bp, req); 6825 if (rc) 6826 break; 6827 6828 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 6829 continue; 6830 6831 if (bnapi->rx_ring && bnapi->tx_ring) { 6832 req = req_tx; 6833 ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring); 6834 req->ring_id = cpu_to_le16(ring_id); 6835 rc = hwrm_req_send(bp, req); 6836 if (rc) 6837 break; 6838 } 6839 if (bnapi->rx_ring) 6840 hw_coal = &bp->rx_coal; 6841 else 6842 hw_coal = &bp->tx_coal; 6843 __bnxt_hwrm_set_coal_nq(bp, bnapi, hw_coal); 6844 } 6845 hwrm_req_drop(bp, req_rx); 6846 hwrm_req_drop(bp, req_tx); 6847 return rc; 6848 } 6849 6850 static void bnxt_hwrm_stat_ctx_free(struct bnxt *bp) 6851 { 6852 struct hwrm_stat_ctx_clr_stats_input *req0 = NULL; 6853 struct hwrm_stat_ctx_free_input *req; 6854 int i; 6855 6856 if (!bp->bnapi) 6857 return; 6858 6859 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 6860 return; 6861 6862 if (hwrm_req_init(bp, req, HWRM_STAT_CTX_FREE)) 6863 return; 6864 if (BNXT_FW_MAJ(bp) <= 20) { 6865 if (hwrm_req_init(bp, req0, HWRM_STAT_CTX_CLR_STATS)) { 6866 hwrm_req_drop(bp, req); 6867 return; 6868 } 6869 hwrm_req_hold(bp, req0); 6870 } 6871 hwrm_req_hold(bp, req); 6872 for (i = 0; i < bp->cp_nr_rings; i++) { 6873 struct bnxt_napi *bnapi = bp->bnapi[i]; 6874 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6875 6876 if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) { 6877 req->stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id); 6878 if (req0) { 6879 req0->stat_ctx_id = req->stat_ctx_id; 6880 hwrm_req_send(bp, req0); 6881 } 6882 hwrm_req_send(bp, req); 6883 6884 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 6885 } 6886 } 6887 hwrm_req_drop(bp, req); 6888 if (req0) 6889 hwrm_req_drop(bp, req0); 6890 } 6891 6892 static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp) 6893 { 6894 struct hwrm_stat_ctx_alloc_output *resp; 6895 struct hwrm_stat_ctx_alloc_input *req; 6896 int rc, i; 6897 6898 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 6899 return 0; 6900 6901 rc = hwrm_req_init(bp, req, HWRM_STAT_CTX_ALLOC); 6902 if (rc) 6903 return rc; 6904 6905 req->stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size); 6906 req->update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000); 6907 6908 resp = hwrm_req_hold(bp, req); 6909 for (i = 0; i < bp->cp_nr_rings; i++) { 6910 struct bnxt_napi *bnapi = bp->bnapi[i]; 6911 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6912 6913 req->stats_dma_addr = cpu_to_le64(cpr->stats.hw_stats_map); 6914 6915 rc = hwrm_req_send(bp, req); 6916 if (rc) 6917 break; 6918 6919 cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id); 6920 6921 bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id; 6922 } 6923 hwrm_req_drop(bp, req); 6924 return rc; 6925 } 6926 6927 static int bnxt_hwrm_func_qcfg(struct bnxt *bp) 6928 { 6929 struct hwrm_func_qcfg_output *resp; 6930 struct hwrm_func_qcfg_input *req; 6931 u32 min_db_offset = 0; 6932 u16 flags; 6933 int rc; 6934 6935 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 6936 if (rc) 6937 return rc; 6938 6939 req->fid = cpu_to_le16(0xffff); 6940 resp = hwrm_req_hold(bp, req); 6941 rc = hwrm_req_send(bp, req); 6942 if (rc) 6943 goto func_qcfg_exit; 6944 6945 #ifdef CONFIG_BNXT_SRIOV 6946 if (BNXT_VF(bp)) { 6947 struct bnxt_vf_info *vf = &bp->vf; 6948 6949 vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK; 6950 } else { 6951 bp->pf.registered_vfs = le16_to_cpu(resp->registered_vfs); 6952 } 6953 #endif 6954 flags = le16_to_cpu(resp->flags); 6955 if (flags & (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED | 6956 FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)) { 6957 bp->fw_cap |= BNXT_FW_CAP_LLDP_AGENT; 6958 if (flags & FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED) 6959 bp->fw_cap |= BNXT_FW_CAP_DCBX_AGENT; 6960 } 6961 if (BNXT_PF(bp) && (flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST)) 6962 bp->flags |= BNXT_FLAG_MULTI_HOST; 6963 if (flags & FUNC_QCFG_RESP_FLAGS_RING_MONITOR_ENABLED) 6964 bp->fw_cap |= BNXT_FW_CAP_RING_MONITOR; 6965 6966 switch (resp->port_partition_type) { 6967 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: 6968 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5: 6969 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0: 6970 bp->port_partition_type = resp->port_partition_type; 6971 break; 6972 } 6973 if (bp->hwrm_spec_code < 0x10707 || 6974 resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEB) 6975 bp->br_mode = BRIDGE_MODE_VEB; 6976 else if (resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEPA) 6977 bp->br_mode = BRIDGE_MODE_VEPA; 6978 else 6979 bp->br_mode = BRIDGE_MODE_UNDEF; 6980 6981 bp->max_mtu = le16_to_cpu(resp->max_mtu_configured); 6982 if (!bp->max_mtu) 6983 bp->max_mtu = BNXT_MAX_MTU; 6984 6985 if (bp->db_size) 6986 goto func_qcfg_exit; 6987 6988 if (bp->flags & BNXT_FLAG_CHIP_P5) { 6989 if (BNXT_PF(bp)) 6990 min_db_offset = DB_PF_OFFSET_P5; 6991 else 6992 min_db_offset = DB_VF_OFFSET_P5; 6993 } 6994 bp->db_size = PAGE_ALIGN(le16_to_cpu(resp->l2_doorbell_bar_size_kb) * 6995 1024); 6996 if (!bp->db_size || bp->db_size > pci_resource_len(bp->pdev, 2) || 6997 bp->db_size <= min_db_offset) 6998 bp->db_size = pci_resource_len(bp->pdev, 2); 6999 7000 func_qcfg_exit: 7001 hwrm_req_drop(bp, req); 7002 return rc; 7003 } 7004 7005 static void bnxt_init_ctx_initializer(struct bnxt_ctx_mem_info *ctx, 7006 struct hwrm_func_backing_store_qcaps_output *resp) 7007 { 7008 struct bnxt_mem_init *mem_init; 7009 u16 init_mask; 7010 u8 init_val; 7011 u8 *offset; 7012 int i; 7013 7014 init_val = resp->ctx_kind_initializer; 7015 init_mask = le16_to_cpu(resp->ctx_init_mask); 7016 offset = &resp->qp_init_offset; 7017 mem_init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP]; 7018 for (i = 0; i < BNXT_CTX_MEM_INIT_MAX; i++, mem_init++, offset++) { 7019 mem_init->init_val = init_val; 7020 mem_init->offset = BNXT_MEM_INVALID_OFFSET; 7021 if (!init_mask) 7022 continue; 7023 if (i == BNXT_CTX_MEM_INIT_STAT) 7024 offset = &resp->stat_init_offset; 7025 if (init_mask & (1 << i)) 7026 mem_init->offset = *offset * 4; 7027 else 7028 mem_init->init_val = 0; 7029 } 7030 ctx->mem_init[BNXT_CTX_MEM_INIT_QP].size = ctx->qp_entry_size; 7031 ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ].size = ctx->srq_entry_size; 7032 ctx->mem_init[BNXT_CTX_MEM_INIT_CQ].size = ctx->cq_entry_size; 7033 ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC].size = ctx->vnic_entry_size; 7034 ctx->mem_init[BNXT_CTX_MEM_INIT_STAT].size = ctx->stat_entry_size; 7035 ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV].size = ctx->mrav_entry_size; 7036 } 7037 7038 static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) 7039 { 7040 struct hwrm_func_backing_store_qcaps_output *resp; 7041 struct hwrm_func_backing_store_qcaps_input *req; 7042 int rc; 7043 7044 if (bp->hwrm_spec_code < 0x10902 || BNXT_VF(bp) || bp->ctx) 7045 return 0; 7046 7047 rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_QCAPS); 7048 if (rc) 7049 return rc; 7050 7051 resp = hwrm_req_hold(bp, req); 7052 rc = hwrm_req_send_silent(bp, req); 7053 if (!rc) { 7054 struct bnxt_ctx_pg_info *ctx_pg; 7055 struct bnxt_ctx_mem_info *ctx; 7056 int i, tqm_rings; 7057 7058 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 7059 if (!ctx) { 7060 rc = -ENOMEM; 7061 goto ctx_err; 7062 } 7063 ctx->qp_max_entries = le32_to_cpu(resp->qp_max_entries); 7064 ctx->qp_min_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries); 7065 ctx->qp_max_l2_entries = le16_to_cpu(resp->qp_max_l2_entries); 7066 ctx->qp_entry_size = le16_to_cpu(resp->qp_entry_size); 7067 ctx->srq_max_l2_entries = le16_to_cpu(resp->srq_max_l2_entries); 7068 ctx->srq_max_entries = le32_to_cpu(resp->srq_max_entries); 7069 ctx->srq_entry_size = le16_to_cpu(resp->srq_entry_size); 7070 ctx->cq_max_l2_entries = le16_to_cpu(resp->cq_max_l2_entries); 7071 ctx->cq_max_entries = le32_to_cpu(resp->cq_max_entries); 7072 ctx->cq_entry_size = le16_to_cpu(resp->cq_entry_size); 7073 ctx->vnic_max_vnic_entries = 7074 le16_to_cpu(resp->vnic_max_vnic_entries); 7075 ctx->vnic_max_ring_table_entries = 7076 le16_to_cpu(resp->vnic_max_ring_table_entries); 7077 ctx->vnic_entry_size = le16_to_cpu(resp->vnic_entry_size); 7078 ctx->stat_max_entries = le32_to_cpu(resp->stat_max_entries); 7079 ctx->stat_entry_size = le16_to_cpu(resp->stat_entry_size); 7080 ctx->tqm_entry_size = le16_to_cpu(resp->tqm_entry_size); 7081 ctx->tqm_min_entries_per_ring = 7082 le32_to_cpu(resp->tqm_min_entries_per_ring); 7083 ctx->tqm_max_entries_per_ring = 7084 le32_to_cpu(resp->tqm_max_entries_per_ring); 7085 ctx->tqm_entries_multiple = resp->tqm_entries_multiple; 7086 if (!ctx->tqm_entries_multiple) 7087 ctx->tqm_entries_multiple = 1; 7088 ctx->mrav_max_entries = le32_to_cpu(resp->mrav_max_entries); 7089 ctx->mrav_entry_size = le16_to_cpu(resp->mrav_entry_size); 7090 ctx->mrav_num_entries_units = 7091 le16_to_cpu(resp->mrav_num_entries_units); 7092 ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size); 7093 ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries); 7094 7095 bnxt_init_ctx_initializer(ctx, resp); 7096 7097 ctx->tqm_fp_rings_count = resp->tqm_fp_rings_count; 7098 if (!ctx->tqm_fp_rings_count) 7099 ctx->tqm_fp_rings_count = bp->max_q; 7100 else if (ctx->tqm_fp_rings_count > BNXT_MAX_TQM_FP_RINGS) 7101 ctx->tqm_fp_rings_count = BNXT_MAX_TQM_FP_RINGS; 7102 7103 tqm_rings = ctx->tqm_fp_rings_count + BNXT_MAX_TQM_SP_RINGS; 7104 ctx_pg = kcalloc(tqm_rings, sizeof(*ctx_pg), GFP_KERNEL); 7105 if (!ctx_pg) { 7106 kfree(ctx); 7107 rc = -ENOMEM; 7108 goto ctx_err; 7109 } 7110 for (i = 0; i < tqm_rings; i++, ctx_pg++) 7111 ctx->tqm_mem[i] = ctx_pg; 7112 bp->ctx = ctx; 7113 } else { 7114 rc = 0; 7115 } 7116 ctx_err: 7117 hwrm_req_drop(bp, req); 7118 return rc; 7119 } 7120 7121 static void bnxt_hwrm_set_pg_attr(struct bnxt_ring_mem_info *rmem, u8 *pg_attr, 7122 __le64 *pg_dir) 7123 { 7124 if (!rmem->nr_pages) 7125 return; 7126 7127 BNXT_SET_CTX_PAGE_ATTR(*pg_attr); 7128 if (rmem->depth >= 1) { 7129 if (rmem->depth == 2) 7130 *pg_attr |= 2; 7131 else 7132 *pg_attr |= 1; 7133 *pg_dir = cpu_to_le64(rmem->pg_tbl_map); 7134 } else { 7135 *pg_dir = cpu_to_le64(rmem->dma_arr[0]); 7136 } 7137 } 7138 7139 #define FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES \ 7140 (FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP | \ 7141 FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ | \ 7142 FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ | \ 7143 FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC | \ 7144 FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) 7145 7146 static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables) 7147 { 7148 struct hwrm_func_backing_store_cfg_input *req; 7149 struct bnxt_ctx_mem_info *ctx = bp->ctx; 7150 struct bnxt_ctx_pg_info *ctx_pg; 7151 void **__req = (void **)&req; 7152 u32 req_len = sizeof(*req); 7153 __le32 *num_entries; 7154 __le64 *pg_dir; 7155 u32 flags = 0; 7156 u8 *pg_attr; 7157 u32 ena; 7158 int rc; 7159 int i; 7160 7161 if (!ctx) 7162 return 0; 7163 7164 if (req_len > bp->hwrm_max_ext_req_len) 7165 req_len = BNXT_BACKING_STORE_CFG_LEGACY_LEN; 7166 rc = __hwrm_req_init(bp, __req, HWRM_FUNC_BACKING_STORE_CFG, req_len); 7167 if (rc) 7168 return rc; 7169 7170 req->enables = cpu_to_le32(enables); 7171 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP) { 7172 ctx_pg = &ctx->qp_mem; 7173 req->qp_num_entries = cpu_to_le32(ctx_pg->entries); 7174 req->qp_num_qp1_entries = cpu_to_le16(ctx->qp_min_qp1_entries); 7175 req->qp_num_l2_entries = cpu_to_le16(ctx->qp_max_l2_entries); 7176 req->qp_entry_size = cpu_to_le16(ctx->qp_entry_size); 7177 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7178 &req->qpc_pg_size_qpc_lvl, 7179 &req->qpc_page_dir); 7180 } 7181 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ) { 7182 ctx_pg = &ctx->srq_mem; 7183 req->srq_num_entries = cpu_to_le32(ctx_pg->entries); 7184 req->srq_num_l2_entries = cpu_to_le16(ctx->srq_max_l2_entries); 7185 req->srq_entry_size = cpu_to_le16(ctx->srq_entry_size); 7186 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7187 &req->srq_pg_size_srq_lvl, 7188 &req->srq_page_dir); 7189 } 7190 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ) { 7191 ctx_pg = &ctx->cq_mem; 7192 req->cq_num_entries = cpu_to_le32(ctx_pg->entries); 7193 req->cq_num_l2_entries = cpu_to_le16(ctx->cq_max_l2_entries); 7194 req->cq_entry_size = cpu_to_le16(ctx->cq_entry_size); 7195 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7196 &req->cq_pg_size_cq_lvl, 7197 &req->cq_page_dir); 7198 } 7199 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC) { 7200 ctx_pg = &ctx->vnic_mem; 7201 req->vnic_num_vnic_entries = 7202 cpu_to_le16(ctx->vnic_max_vnic_entries); 7203 req->vnic_num_ring_table_entries = 7204 cpu_to_le16(ctx->vnic_max_ring_table_entries); 7205 req->vnic_entry_size = cpu_to_le16(ctx->vnic_entry_size); 7206 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7207 &req->vnic_pg_size_vnic_lvl, 7208 &req->vnic_page_dir); 7209 } 7210 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) { 7211 ctx_pg = &ctx->stat_mem; 7212 req->stat_num_entries = cpu_to_le32(ctx->stat_max_entries); 7213 req->stat_entry_size = cpu_to_le16(ctx->stat_entry_size); 7214 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7215 &req->stat_pg_size_stat_lvl, 7216 &req->stat_page_dir); 7217 } 7218 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) { 7219 ctx_pg = &ctx->mrav_mem; 7220 req->mrav_num_entries = cpu_to_le32(ctx_pg->entries); 7221 if (ctx->mrav_num_entries_units) 7222 flags |= 7223 FUNC_BACKING_STORE_CFG_REQ_FLAGS_MRAV_RESERVATION_SPLIT; 7224 req->mrav_entry_size = cpu_to_le16(ctx->mrav_entry_size); 7225 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7226 &req->mrav_pg_size_mrav_lvl, 7227 &req->mrav_page_dir); 7228 } 7229 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) { 7230 ctx_pg = &ctx->tim_mem; 7231 req->tim_num_entries = cpu_to_le32(ctx_pg->entries); 7232 req->tim_entry_size = cpu_to_le16(ctx->tim_entry_size); 7233 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 7234 &req->tim_pg_size_tim_lvl, 7235 &req->tim_page_dir); 7236 } 7237 for (i = 0, num_entries = &req->tqm_sp_num_entries, 7238 pg_attr = &req->tqm_sp_pg_size_tqm_sp_lvl, 7239 pg_dir = &req->tqm_sp_page_dir, 7240 ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP; 7241 i < BNXT_MAX_TQM_RINGS; 7242 i++, num_entries++, pg_attr++, pg_dir++, ena <<= 1) { 7243 if (!(enables & ena)) 7244 continue; 7245 7246 req->tqm_entry_size = cpu_to_le16(ctx->tqm_entry_size); 7247 ctx_pg = ctx->tqm_mem[i]; 7248 *num_entries = cpu_to_le32(ctx_pg->entries); 7249 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, pg_attr, pg_dir); 7250 } 7251 req->flags = cpu_to_le32(flags); 7252 return hwrm_req_send(bp, req); 7253 } 7254 7255 static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp, 7256 struct bnxt_ctx_pg_info *ctx_pg) 7257 { 7258 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 7259 7260 rmem->page_size = BNXT_PAGE_SIZE; 7261 rmem->pg_arr = ctx_pg->ctx_pg_arr; 7262 rmem->dma_arr = ctx_pg->ctx_dma_arr; 7263 rmem->flags = BNXT_RMEM_VALID_PTE_FLAG; 7264 if (rmem->depth >= 1) 7265 rmem->flags |= BNXT_RMEM_USE_FULL_PAGE_FLAG; 7266 return bnxt_alloc_ring(bp, rmem); 7267 } 7268 7269 static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, 7270 struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size, 7271 u8 depth, struct bnxt_mem_init *mem_init) 7272 { 7273 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 7274 int rc; 7275 7276 if (!mem_size) 7277 return -EINVAL; 7278 7279 ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); 7280 if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) { 7281 ctx_pg->nr_pages = 0; 7282 return -EINVAL; 7283 } 7284 if (ctx_pg->nr_pages > MAX_CTX_PAGES || depth > 1) { 7285 int nr_tbls, i; 7286 7287 rmem->depth = 2; 7288 ctx_pg->ctx_pg_tbl = kcalloc(MAX_CTX_PAGES, sizeof(ctx_pg), 7289 GFP_KERNEL); 7290 if (!ctx_pg->ctx_pg_tbl) 7291 return -ENOMEM; 7292 nr_tbls = DIV_ROUND_UP(ctx_pg->nr_pages, MAX_CTX_PAGES); 7293 rmem->nr_pages = nr_tbls; 7294 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); 7295 if (rc) 7296 return rc; 7297 for (i = 0; i < nr_tbls; i++) { 7298 struct bnxt_ctx_pg_info *pg_tbl; 7299 7300 pg_tbl = kzalloc(sizeof(*pg_tbl), GFP_KERNEL); 7301 if (!pg_tbl) 7302 return -ENOMEM; 7303 ctx_pg->ctx_pg_tbl[i] = pg_tbl; 7304 rmem = &pg_tbl->ring_mem; 7305 rmem->pg_tbl = ctx_pg->ctx_pg_arr[i]; 7306 rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i]; 7307 rmem->depth = 1; 7308 rmem->nr_pages = MAX_CTX_PAGES; 7309 rmem->mem_init = mem_init; 7310 if (i == (nr_tbls - 1)) { 7311 int rem = ctx_pg->nr_pages % MAX_CTX_PAGES; 7312 7313 if (rem) 7314 rmem->nr_pages = rem; 7315 } 7316 rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl); 7317 if (rc) 7318 break; 7319 } 7320 } else { 7321 rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); 7322 if (rmem->nr_pages > 1 || depth) 7323 rmem->depth = 1; 7324 rmem->mem_init = mem_init; 7325 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); 7326 } 7327 return rc; 7328 } 7329 7330 static void bnxt_free_ctx_pg_tbls(struct bnxt *bp, 7331 struct bnxt_ctx_pg_info *ctx_pg) 7332 { 7333 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 7334 7335 if (rmem->depth > 1 || ctx_pg->nr_pages > MAX_CTX_PAGES || 7336 ctx_pg->ctx_pg_tbl) { 7337 int i, nr_tbls = rmem->nr_pages; 7338 7339 for (i = 0; i < nr_tbls; i++) { 7340 struct bnxt_ctx_pg_info *pg_tbl; 7341 struct bnxt_ring_mem_info *rmem2; 7342 7343 pg_tbl = ctx_pg->ctx_pg_tbl[i]; 7344 if (!pg_tbl) 7345 continue; 7346 rmem2 = &pg_tbl->ring_mem; 7347 bnxt_free_ring(bp, rmem2); 7348 ctx_pg->ctx_pg_arr[i] = NULL; 7349 kfree(pg_tbl); 7350 ctx_pg->ctx_pg_tbl[i] = NULL; 7351 } 7352 kfree(ctx_pg->ctx_pg_tbl); 7353 ctx_pg->ctx_pg_tbl = NULL; 7354 } 7355 bnxt_free_ring(bp, rmem); 7356 ctx_pg->nr_pages = 0; 7357 } 7358 7359 void bnxt_free_ctx_mem(struct bnxt *bp) 7360 { 7361 struct bnxt_ctx_mem_info *ctx = bp->ctx; 7362 int i; 7363 7364 if (!ctx) 7365 return; 7366 7367 if (ctx->tqm_mem[0]) { 7368 for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) 7369 bnxt_free_ctx_pg_tbls(bp, ctx->tqm_mem[i]); 7370 kfree(ctx->tqm_mem[0]); 7371 ctx->tqm_mem[0] = NULL; 7372 } 7373 7374 bnxt_free_ctx_pg_tbls(bp, &ctx->tim_mem); 7375 bnxt_free_ctx_pg_tbls(bp, &ctx->mrav_mem); 7376 bnxt_free_ctx_pg_tbls(bp, &ctx->stat_mem); 7377 bnxt_free_ctx_pg_tbls(bp, &ctx->vnic_mem); 7378 bnxt_free_ctx_pg_tbls(bp, &ctx->cq_mem); 7379 bnxt_free_ctx_pg_tbls(bp, &ctx->srq_mem); 7380 bnxt_free_ctx_pg_tbls(bp, &ctx->qp_mem); 7381 ctx->flags &= ~BNXT_CTX_FLAG_INITED; 7382 } 7383 7384 static int bnxt_alloc_ctx_mem(struct bnxt *bp) 7385 { 7386 struct bnxt_ctx_pg_info *ctx_pg; 7387 struct bnxt_ctx_mem_info *ctx; 7388 struct bnxt_mem_init *init; 7389 u32 mem_size, ena, entries; 7390 u32 entries_sp, min; 7391 u32 num_mr, num_ah; 7392 u32 extra_srqs = 0; 7393 u32 extra_qps = 0; 7394 u8 pg_lvl = 1; 7395 int i, rc; 7396 7397 rc = bnxt_hwrm_func_backing_store_qcaps(bp); 7398 if (rc) { 7399 netdev_err(bp->dev, "Failed querying context mem capability, rc = %d.\n", 7400 rc); 7401 return rc; 7402 } 7403 ctx = bp->ctx; 7404 if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED)) 7405 return 0; 7406 7407 if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) { 7408 pg_lvl = 2; 7409 extra_qps = 65536; 7410 extra_srqs = 8192; 7411 } 7412 7413 ctx_pg = &ctx->qp_mem; 7414 ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries + 7415 extra_qps; 7416 if (ctx->qp_entry_size) { 7417 mem_size = ctx->qp_entry_size * ctx_pg->entries; 7418 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP]; 7419 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); 7420 if (rc) 7421 return rc; 7422 } 7423 7424 ctx_pg = &ctx->srq_mem; 7425 ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs; 7426 if (ctx->srq_entry_size) { 7427 mem_size = ctx->srq_entry_size * ctx_pg->entries; 7428 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ]; 7429 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); 7430 if (rc) 7431 return rc; 7432 } 7433 7434 ctx_pg = &ctx->cq_mem; 7435 ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2; 7436 if (ctx->cq_entry_size) { 7437 mem_size = ctx->cq_entry_size * ctx_pg->entries; 7438 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_CQ]; 7439 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); 7440 if (rc) 7441 return rc; 7442 } 7443 7444 ctx_pg = &ctx->vnic_mem; 7445 ctx_pg->entries = ctx->vnic_max_vnic_entries + 7446 ctx->vnic_max_ring_table_entries; 7447 if (ctx->vnic_entry_size) { 7448 mem_size = ctx->vnic_entry_size * ctx_pg->entries; 7449 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC]; 7450 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init); 7451 if (rc) 7452 return rc; 7453 } 7454 7455 ctx_pg = &ctx->stat_mem; 7456 ctx_pg->entries = ctx->stat_max_entries; 7457 if (ctx->stat_entry_size) { 7458 mem_size = ctx->stat_entry_size * ctx_pg->entries; 7459 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_STAT]; 7460 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init); 7461 if (rc) 7462 return rc; 7463 } 7464 7465 ena = 0; 7466 if (!(bp->flags & BNXT_FLAG_ROCE_CAP)) 7467 goto skip_rdma; 7468 7469 ctx_pg = &ctx->mrav_mem; 7470 /* 128K extra is needed to accommodate static AH context 7471 * allocation by f/w. 7472 */ 7473 num_mr = 1024 * 256; 7474 num_ah = 1024 * 128; 7475 ctx_pg->entries = num_mr + num_ah; 7476 if (ctx->mrav_entry_size) { 7477 mem_size = ctx->mrav_entry_size * ctx_pg->entries; 7478 init = &ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV]; 7479 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, init); 7480 if (rc) 7481 return rc; 7482 } 7483 ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV; 7484 if (ctx->mrav_num_entries_units) 7485 ctx_pg->entries = 7486 ((num_mr / ctx->mrav_num_entries_units) << 16) | 7487 (num_ah / ctx->mrav_num_entries_units); 7488 7489 ctx_pg = &ctx->tim_mem; 7490 ctx_pg->entries = ctx->qp_mem.entries; 7491 if (ctx->tim_entry_size) { 7492 mem_size = ctx->tim_entry_size * ctx_pg->entries; 7493 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, NULL); 7494 if (rc) 7495 return rc; 7496 } 7497 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM; 7498 7499 skip_rdma: 7500 min = ctx->tqm_min_entries_per_ring; 7501 entries_sp = ctx->vnic_max_vnic_entries + ctx->qp_max_l2_entries + 7502 2 * (extra_qps + ctx->qp_min_qp1_entries) + min; 7503 entries_sp = roundup(entries_sp, ctx->tqm_entries_multiple); 7504 entries = ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries); 7505 entries = roundup(entries, ctx->tqm_entries_multiple); 7506 entries = clamp_t(u32, entries, min, ctx->tqm_max_entries_per_ring); 7507 for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) { 7508 ctx_pg = ctx->tqm_mem[i]; 7509 ctx_pg->entries = i ? entries : entries_sp; 7510 if (ctx->tqm_entry_size) { 7511 mem_size = ctx->tqm_entry_size * ctx_pg->entries; 7512 rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, 7513 NULL); 7514 if (rc) 7515 return rc; 7516 } 7517 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i; 7518 } 7519 ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES; 7520 rc = bnxt_hwrm_func_backing_store_cfg(bp, ena); 7521 if (rc) { 7522 netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n", 7523 rc); 7524 return rc; 7525 } 7526 ctx->flags |= BNXT_CTX_FLAG_INITED; 7527 return 0; 7528 } 7529 7530 int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all) 7531 { 7532 struct hwrm_func_resource_qcaps_output *resp; 7533 struct hwrm_func_resource_qcaps_input *req; 7534 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 7535 int rc; 7536 7537 rc = hwrm_req_init(bp, req, HWRM_FUNC_RESOURCE_QCAPS); 7538 if (rc) 7539 return rc; 7540 7541 req->fid = cpu_to_le16(0xffff); 7542 resp = hwrm_req_hold(bp, req); 7543 rc = hwrm_req_send_silent(bp, req); 7544 if (rc) 7545 goto hwrm_func_resc_qcaps_exit; 7546 7547 hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs); 7548 if (!all) 7549 goto hwrm_func_resc_qcaps_exit; 7550 7551 hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx); 7552 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 7553 hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings); 7554 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 7555 hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings); 7556 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 7557 hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings); 7558 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 7559 hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps); 7560 hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps); 7561 hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs); 7562 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 7563 hw_resc->min_vnics = le16_to_cpu(resp->min_vnics); 7564 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); 7565 hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx); 7566 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 7567 7568 if (bp->flags & BNXT_FLAG_CHIP_P5) { 7569 u16 max_msix = le16_to_cpu(resp->max_msix); 7570 7571 hw_resc->max_nqs = max_msix; 7572 hw_resc->max_hw_ring_grps = hw_resc->max_rx_rings; 7573 } 7574 7575 if (BNXT_PF(bp)) { 7576 struct bnxt_pf_info *pf = &bp->pf; 7577 7578 pf->vf_resv_strategy = 7579 le16_to_cpu(resp->vf_reservation_strategy); 7580 if (pf->vf_resv_strategy > BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) 7581 pf->vf_resv_strategy = BNXT_VF_RESV_STRATEGY_MAXIMAL; 7582 } 7583 hwrm_func_resc_qcaps_exit: 7584 hwrm_req_drop(bp, req); 7585 return rc; 7586 } 7587 7588 static int __bnxt_hwrm_ptp_qcfg(struct bnxt *bp) 7589 { 7590 struct hwrm_port_mac_ptp_qcfg_output *resp; 7591 struct hwrm_port_mac_ptp_qcfg_input *req; 7592 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 7593 bool phc_cfg; 7594 u8 flags; 7595 int rc; 7596 7597 if (bp->hwrm_spec_code < 0x10801) { 7598 rc = -ENODEV; 7599 goto no_ptp; 7600 } 7601 7602 rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_PTP_QCFG); 7603 if (rc) 7604 goto no_ptp; 7605 7606 req->port_id = cpu_to_le16(bp->pf.port_id); 7607 resp = hwrm_req_hold(bp, req); 7608 rc = hwrm_req_send(bp, req); 7609 if (rc) 7610 goto exit; 7611 7612 flags = resp->flags; 7613 if (!(flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_HWRM_ACCESS)) { 7614 rc = -ENODEV; 7615 goto exit; 7616 } 7617 if (!ptp) { 7618 ptp = kzalloc(sizeof(*ptp), GFP_KERNEL); 7619 if (!ptp) { 7620 rc = -ENOMEM; 7621 goto exit; 7622 } 7623 ptp->bp = bp; 7624 bp->ptp_cfg = ptp; 7625 } 7626 if (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_PARTIAL_DIRECT_ACCESS_REF_CLOCK) { 7627 ptp->refclk_regs[0] = le32_to_cpu(resp->ts_ref_clock_reg_lower); 7628 ptp->refclk_regs[1] = le32_to_cpu(resp->ts_ref_clock_reg_upper); 7629 } else if (bp->flags & BNXT_FLAG_CHIP_P5) { 7630 ptp->refclk_regs[0] = BNXT_TS_REG_TIMESYNC_TS0_LOWER; 7631 ptp->refclk_regs[1] = BNXT_TS_REG_TIMESYNC_TS0_UPPER; 7632 } else { 7633 rc = -ENODEV; 7634 goto exit; 7635 } 7636 phc_cfg = (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_RTC_CONFIGURED) != 0; 7637 rc = bnxt_ptp_init(bp, phc_cfg); 7638 if (rc) 7639 netdev_warn(bp->dev, "PTP initialization failed.\n"); 7640 exit: 7641 hwrm_req_drop(bp, req); 7642 if (!rc) 7643 return 0; 7644 7645 no_ptp: 7646 bnxt_ptp_clear(bp); 7647 kfree(ptp); 7648 bp->ptp_cfg = NULL; 7649 return rc; 7650 } 7651 7652 static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) 7653 { 7654 struct hwrm_func_qcaps_output *resp; 7655 struct hwrm_func_qcaps_input *req; 7656 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 7657 u32 flags, flags_ext, flags_ext2; 7658 int rc; 7659 7660 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCAPS); 7661 if (rc) 7662 return rc; 7663 7664 req->fid = cpu_to_le16(0xffff); 7665 resp = hwrm_req_hold(bp, req); 7666 rc = hwrm_req_send(bp, req); 7667 if (rc) 7668 goto hwrm_func_qcaps_exit; 7669 7670 flags = le32_to_cpu(resp->flags); 7671 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED) 7672 bp->flags |= BNXT_FLAG_ROCEV1_CAP; 7673 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED) 7674 bp->flags |= BNXT_FLAG_ROCEV2_CAP; 7675 if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED) 7676 bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED; 7677 if (flags & FUNC_QCAPS_RESP_FLAGS_HOT_RESET_CAPABLE) 7678 bp->fw_cap |= BNXT_FW_CAP_HOT_RESET; 7679 if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED) 7680 bp->fw_cap |= BNXT_FW_CAP_EXT_STATS_SUPPORTED; 7681 if (flags & FUNC_QCAPS_RESP_FLAGS_ERROR_RECOVERY_CAPABLE) 7682 bp->fw_cap |= BNXT_FW_CAP_ERROR_RECOVERY; 7683 if (flags & FUNC_QCAPS_RESP_FLAGS_ERR_RECOVER_RELOAD) 7684 bp->fw_cap |= BNXT_FW_CAP_ERR_RECOVER_RELOAD; 7685 if (!(flags & FUNC_QCAPS_RESP_FLAGS_VLAN_ACCELERATION_TX_DISABLED)) 7686 bp->fw_cap |= BNXT_FW_CAP_VLAN_TX_INSERT; 7687 if (flags & FUNC_QCAPS_RESP_FLAGS_DBG_QCAPS_CMD_SUPPORTED) 7688 bp->fw_cap |= BNXT_FW_CAP_DBG_QCAPS; 7689 7690 flags_ext = le32_to_cpu(resp->flags_ext); 7691 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_EXT_HW_STATS_SUPPORTED) 7692 bp->fw_cap |= BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED; 7693 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_PPS_SUPPORTED)) 7694 bp->fw_cap |= BNXT_FW_CAP_PTP_PPS; 7695 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_64BIT_RTC_SUPPORTED) 7696 bp->fw_cap |= BNXT_FW_CAP_PTP_RTC; 7697 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_HOT_RESET_IF_SUPPORT)) 7698 bp->fw_cap |= BNXT_FW_CAP_HOT_RESET_IF; 7699 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_FW_LIVEPATCH_SUPPORTED)) 7700 bp->fw_cap |= BNXT_FW_CAP_LIVEPATCH; 7701 7702 flags_ext2 = le32_to_cpu(resp->flags_ext2); 7703 if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_RX_ALL_PKTS_TIMESTAMPS_SUPPORTED) 7704 bp->fw_cap |= BNXT_FW_CAP_RX_ALL_PKT_TS; 7705 7706 bp->tx_push_thresh = 0; 7707 if ((flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) && 7708 BNXT_FW_MAJ(bp) > 217) 7709 bp->tx_push_thresh = BNXT_TX_PUSH_THRESH; 7710 7711 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 7712 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 7713 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 7714 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 7715 hw_resc->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps); 7716 if (!hw_resc->max_hw_ring_grps) 7717 hw_resc->max_hw_ring_grps = hw_resc->max_tx_rings; 7718 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 7719 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); 7720 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 7721 7722 if (BNXT_PF(bp)) { 7723 struct bnxt_pf_info *pf = &bp->pf; 7724 7725 pf->fw_fid = le16_to_cpu(resp->fid); 7726 pf->port_id = le16_to_cpu(resp->port_id); 7727 memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN); 7728 pf->first_vf_id = le16_to_cpu(resp->first_vf_id); 7729 pf->max_vfs = le16_to_cpu(resp->max_vfs); 7730 pf->max_encap_records = le32_to_cpu(resp->max_encap_records); 7731 pf->max_decap_records = le32_to_cpu(resp->max_decap_records); 7732 pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); 7733 pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); 7734 pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); 7735 pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); 7736 bp->flags &= ~BNXT_FLAG_WOL_CAP; 7737 if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED) 7738 bp->flags |= BNXT_FLAG_WOL_CAP; 7739 if (flags & FUNC_QCAPS_RESP_FLAGS_PTP_SUPPORTED) { 7740 __bnxt_hwrm_ptp_qcfg(bp); 7741 } else { 7742 bnxt_ptp_clear(bp); 7743 kfree(bp->ptp_cfg); 7744 bp->ptp_cfg = NULL; 7745 } 7746 } else { 7747 #ifdef CONFIG_BNXT_SRIOV 7748 struct bnxt_vf_info *vf = &bp->vf; 7749 7750 vf->fw_fid = le16_to_cpu(resp->fid); 7751 memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN); 7752 #endif 7753 } 7754 7755 hwrm_func_qcaps_exit: 7756 hwrm_req_drop(bp, req); 7757 return rc; 7758 } 7759 7760 static void bnxt_hwrm_dbg_qcaps(struct bnxt *bp) 7761 { 7762 struct hwrm_dbg_qcaps_output *resp; 7763 struct hwrm_dbg_qcaps_input *req; 7764 int rc; 7765 7766 bp->fw_dbg_cap = 0; 7767 if (!(bp->fw_cap & BNXT_FW_CAP_DBG_QCAPS)) 7768 return; 7769 7770 rc = hwrm_req_init(bp, req, HWRM_DBG_QCAPS); 7771 if (rc) 7772 return; 7773 7774 req->fid = cpu_to_le16(0xffff); 7775 resp = hwrm_req_hold(bp, req); 7776 rc = hwrm_req_send(bp, req); 7777 if (rc) 7778 goto hwrm_dbg_qcaps_exit; 7779 7780 bp->fw_dbg_cap = le32_to_cpu(resp->flags); 7781 7782 hwrm_dbg_qcaps_exit: 7783 hwrm_req_drop(bp, req); 7784 } 7785 7786 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp); 7787 7788 int bnxt_hwrm_func_qcaps(struct bnxt *bp) 7789 { 7790 int rc; 7791 7792 rc = __bnxt_hwrm_func_qcaps(bp); 7793 if (rc) 7794 return rc; 7795 7796 bnxt_hwrm_dbg_qcaps(bp); 7797 7798 rc = bnxt_hwrm_queue_qportcfg(bp); 7799 if (rc) { 7800 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %d\n", rc); 7801 return rc; 7802 } 7803 if (bp->hwrm_spec_code >= 0x10803) { 7804 rc = bnxt_alloc_ctx_mem(bp); 7805 if (rc) 7806 return rc; 7807 rc = bnxt_hwrm_func_resc_qcaps(bp, true); 7808 if (!rc) 7809 bp->fw_cap |= BNXT_FW_CAP_NEW_RM; 7810 } 7811 return 0; 7812 } 7813 7814 static int bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(struct bnxt *bp) 7815 { 7816 struct hwrm_cfa_adv_flow_mgnt_qcaps_output *resp; 7817 struct hwrm_cfa_adv_flow_mgnt_qcaps_input *req; 7818 u32 flags; 7819 int rc; 7820 7821 if (!(bp->fw_cap & BNXT_FW_CAP_CFA_ADV_FLOW)) 7822 return 0; 7823 7824 rc = hwrm_req_init(bp, req, HWRM_CFA_ADV_FLOW_MGNT_QCAPS); 7825 if (rc) 7826 return rc; 7827 7828 resp = hwrm_req_hold(bp, req); 7829 rc = hwrm_req_send(bp, req); 7830 if (rc) 7831 goto hwrm_cfa_adv_qcaps_exit; 7832 7833 flags = le32_to_cpu(resp->flags); 7834 if (flags & 7835 CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V2_SUPPORTED) 7836 bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2; 7837 7838 hwrm_cfa_adv_qcaps_exit: 7839 hwrm_req_drop(bp, req); 7840 return rc; 7841 } 7842 7843 static int __bnxt_alloc_fw_health(struct bnxt *bp) 7844 { 7845 if (bp->fw_health) 7846 return 0; 7847 7848 bp->fw_health = kzalloc(sizeof(*bp->fw_health), GFP_KERNEL); 7849 if (!bp->fw_health) 7850 return -ENOMEM; 7851 7852 mutex_init(&bp->fw_health->lock); 7853 return 0; 7854 } 7855 7856 static int bnxt_alloc_fw_health(struct bnxt *bp) 7857 { 7858 int rc; 7859 7860 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) && 7861 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 7862 return 0; 7863 7864 rc = __bnxt_alloc_fw_health(bp); 7865 if (rc) { 7866 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET; 7867 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; 7868 return rc; 7869 } 7870 7871 return 0; 7872 } 7873 7874 static void __bnxt_map_fw_health_reg(struct bnxt *bp, u32 reg) 7875 { 7876 writel(reg & BNXT_GRC_BASE_MASK, bp->bar0 + 7877 BNXT_GRCPF_REG_WINDOW_BASE_OUT + 7878 BNXT_FW_HEALTH_WIN_MAP_OFF); 7879 } 7880 7881 static void bnxt_inv_fw_health_reg(struct bnxt *bp) 7882 { 7883 struct bnxt_fw_health *fw_health = bp->fw_health; 7884 u32 reg_type; 7885 7886 if (!fw_health) 7887 return; 7888 7889 reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_HEALTH_REG]); 7890 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) 7891 fw_health->status_reliable = false; 7892 7893 reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_RESET_CNT_REG]); 7894 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) 7895 fw_health->resets_reliable = false; 7896 } 7897 7898 static void bnxt_try_map_fw_health_reg(struct bnxt *bp) 7899 { 7900 void __iomem *hs; 7901 u32 status_loc; 7902 u32 reg_type; 7903 u32 sig; 7904 7905 if (bp->fw_health) 7906 bp->fw_health->status_reliable = false; 7907 7908 __bnxt_map_fw_health_reg(bp, HCOMM_STATUS_STRUCT_LOC); 7909 hs = bp->bar0 + BNXT_FW_HEALTH_WIN_OFF(HCOMM_STATUS_STRUCT_LOC); 7910 7911 sig = readl(hs + offsetof(struct hcomm_status, sig_ver)); 7912 if ((sig & HCOMM_STATUS_SIGNATURE_MASK) != HCOMM_STATUS_SIGNATURE_VAL) { 7913 if (!bp->chip_num) { 7914 __bnxt_map_fw_health_reg(bp, BNXT_GRC_REG_BASE); 7915 bp->chip_num = readl(bp->bar0 + 7916 BNXT_FW_HEALTH_WIN_BASE + 7917 BNXT_GRC_REG_CHIP_NUM); 7918 } 7919 if (!BNXT_CHIP_P5(bp)) 7920 return; 7921 7922 status_loc = BNXT_GRC_REG_STATUS_P5 | 7923 BNXT_FW_HEALTH_REG_TYPE_BAR0; 7924 } else { 7925 status_loc = readl(hs + offsetof(struct hcomm_status, 7926 fw_status_loc)); 7927 } 7928 7929 if (__bnxt_alloc_fw_health(bp)) { 7930 netdev_warn(bp->dev, "no memory for firmware status checks\n"); 7931 return; 7932 } 7933 7934 bp->fw_health->regs[BNXT_FW_HEALTH_REG] = status_loc; 7935 reg_type = BNXT_FW_HEALTH_REG_TYPE(status_loc); 7936 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) { 7937 __bnxt_map_fw_health_reg(bp, status_loc); 7938 bp->fw_health->mapped_regs[BNXT_FW_HEALTH_REG] = 7939 BNXT_FW_HEALTH_WIN_OFF(status_loc); 7940 } 7941 7942 bp->fw_health->status_reliable = true; 7943 } 7944 7945 static int bnxt_map_fw_health_regs(struct bnxt *bp) 7946 { 7947 struct bnxt_fw_health *fw_health = bp->fw_health; 7948 u32 reg_base = 0xffffffff; 7949 int i; 7950 7951 bp->fw_health->status_reliable = false; 7952 bp->fw_health->resets_reliable = false; 7953 /* Only pre-map the monitoring GRC registers using window 3 */ 7954 for (i = 0; i < 4; i++) { 7955 u32 reg = fw_health->regs[i]; 7956 7957 if (BNXT_FW_HEALTH_REG_TYPE(reg) != BNXT_FW_HEALTH_REG_TYPE_GRC) 7958 continue; 7959 if (reg_base == 0xffffffff) 7960 reg_base = reg & BNXT_GRC_BASE_MASK; 7961 if ((reg & BNXT_GRC_BASE_MASK) != reg_base) 7962 return -ERANGE; 7963 fw_health->mapped_regs[i] = BNXT_FW_HEALTH_WIN_OFF(reg); 7964 } 7965 bp->fw_health->status_reliable = true; 7966 bp->fw_health->resets_reliable = true; 7967 if (reg_base == 0xffffffff) 7968 return 0; 7969 7970 __bnxt_map_fw_health_reg(bp, reg_base); 7971 return 0; 7972 } 7973 7974 static void bnxt_remap_fw_health_regs(struct bnxt *bp) 7975 { 7976 if (!bp->fw_health) 7977 return; 7978 7979 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) { 7980 bp->fw_health->status_reliable = true; 7981 bp->fw_health->resets_reliable = true; 7982 } else { 7983 bnxt_try_map_fw_health_reg(bp); 7984 } 7985 } 7986 7987 static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp) 7988 { 7989 struct bnxt_fw_health *fw_health = bp->fw_health; 7990 struct hwrm_error_recovery_qcfg_output *resp; 7991 struct hwrm_error_recovery_qcfg_input *req; 7992 int rc, i; 7993 7994 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 7995 return 0; 7996 7997 rc = hwrm_req_init(bp, req, HWRM_ERROR_RECOVERY_QCFG); 7998 if (rc) 7999 return rc; 8000 8001 resp = hwrm_req_hold(bp, req); 8002 rc = hwrm_req_send(bp, req); 8003 if (rc) 8004 goto err_recovery_out; 8005 fw_health->flags = le32_to_cpu(resp->flags); 8006 if ((fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) && 8007 !(bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL)) { 8008 rc = -EINVAL; 8009 goto err_recovery_out; 8010 } 8011 fw_health->polling_dsecs = le32_to_cpu(resp->driver_polling_freq); 8012 fw_health->master_func_wait_dsecs = 8013 le32_to_cpu(resp->master_func_wait_period); 8014 fw_health->normal_func_wait_dsecs = 8015 le32_to_cpu(resp->normal_func_wait_period); 8016 fw_health->post_reset_wait_dsecs = 8017 le32_to_cpu(resp->master_func_wait_period_after_reset); 8018 fw_health->post_reset_max_wait_dsecs = 8019 le32_to_cpu(resp->max_bailout_time_after_reset); 8020 fw_health->regs[BNXT_FW_HEALTH_REG] = 8021 le32_to_cpu(resp->fw_health_status_reg); 8022 fw_health->regs[BNXT_FW_HEARTBEAT_REG] = 8023 le32_to_cpu(resp->fw_heartbeat_reg); 8024 fw_health->regs[BNXT_FW_RESET_CNT_REG] = 8025 le32_to_cpu(resp->fw_reset_cnt_reg); 8026 fw_health->regs[BNXT_FW_RESET_INPROG_REG] = 8027 le32_to_cpu(resp->reset_inprogress_reg); 8028 fw_health->fw_reset_inprog_reg_mask = 8029 le32_to_cpu(resp->reset_inprogress_reg_mask); 8030 fw_health->fw_reset_seq_cnt = resp->reg_array_cnt; 8031 if (fw_health->fw_reset_seq_cnt >= 16) { 8032 rc = -EINVAL; 8033 goto err_recovery_out; 8034 } 8035 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) { 8036 fw_health->fw_reset_seq_regs[i] = 8037 le32_to_cpu(resp->reset_reg[i]); 8038 fw_health->fw_reset_seq_vals[i] = 8039 le32_to_cpu(resp->reset_reg_val[i]); 8040 fw_health->fw_reset_seq_delay_msec[i] = 8041 resp->delay_after_reset[i]; 8042 } 8043 err_recovery_out: 8044 hwrm_req_drop(bp, req); 8045 if (!rc) 8046 rc = bnxt_map_fw_health_regs(bp); 8047 if (rc) 8048 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; 8049 return rc; 8050 } 8051 8052 static int bnxt_hwrm_func_reset(struct bnxt *bp) 8053 { 8054 struct hwrm_func_reset_input *req; 8055 int rc; 8056 8057 rc = hwrm_req_init(bp, req, HWRM_FUNC_RESET); 8058 if (rc) 8059 return rc; 8060 8061 req->enables = 0; 8062 hwrm_req_timeout(bp, req, HWRM_RESET_TIMEOUT); 8063 return hwrm_req_send(bp, req); 8064 } 8065 8066 static void bnxt_nvm_cfg_ver_get(struct bnxt *bp) 8067 { 8068 struct hwrm_nvm_get_dev_info_output nvm_info; 8069 8070 if (!bnxt_hwrm_nvm_get_dev_info(bp, &nvm_info)) 8071 snprintf(bp->nvm_cfg_ver, FW_VER_STR_LEN, "%d.%d.%d", 8072 nvm_info.nvm_cfg_ver_maj, nvm_info.nvm_cfg_ver_min, 8073 nvm_info.nvm_cfg_ver_upd); 8074 } 8075 8076 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp) 8077 { 8078 struct hwrm_queue_qportcfg_output *resp; 8079 struct hwrm_queue_qportcfg_input *req; 8080 u8 i, j, *qptr; 8081 bool no_rdma; 8082 int rc = 0; 8083 8084 rc = hwrm_req_init(bp, req, HWRM_QUEUE_QPORTCFG); 8085 if (rc) 8086 return rc; 8087 8088 resp = hwrm_req_hold(bp, req); 8089 rc = hwrm_req_send(bp, req); 8090 if (rc) 8091 goto qportcfg_exit; 8092 8093 if (!resp->max_configurable_queues) { 8094 rc = -EINVAL; 8095 goto qportcfg_exit; 8096 } 8097 bp->max_tc = resp->max_configurable_queues; 8098 bp->max_lltc = resp->max_configurable_lossless_queues; 8099 if (bp->max_tc > BNXT_MAX_QUEUE) 8100 bp->max_tc = BNXT_MAX_QUEUE; 8101 8102 no_rdma = !(bp->flags & BNXT_FLAG_ROCE_CAP); 8103 qptr = &resp->queue_id0; 8104 for (i = 0, j = 0; i < bp->max_tc; i++) { 8105 bp->q_info[j].queue_id = *qptr; 8106 bp->q_ids[i] = *qptr++; 8107 bp->q_info[j].queue_profile = *qptr++; 8108 bp->tc_to_qidx[j] = j; 8109 if (!BNXT_CNPQ(bp->q_info[j].queue_profile) || 8110 (no_rdma && BNXT_PF(bp))) 8111 j++; 8112 } 8113 bp->max_q = bp->max_tc; 8114 bp->max_tc = max_t(u8, j, 1); 8115 8116 if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG) 8117 bp->max_tc = 1; 8118 8119 if (bp->max_lltc > bp->max_tc) 8120 bp->max_lltc = bp->max_tc; 8121 8122 qportcfg_exit: 8123 hwrm_req_drop(bp, req); 8124 return rc; 8125 } 8126 8127 static int bnxt_hwrm_poll(struct bnxt *bp) 8128 { 8129 struct hwrm_ver_get_input *req; 8130 int rc; 8131 8132 rc = hwrm_req_init(bp, req, HWRM_VER_GET); 8133 if (rc) 8134 return rc; 8135 8136 req->hwrm_intf_maj = HWRM_VERSION_MAJOR; 8137 req->hwrm_intf_min = HWRM_VERSION_MINOR; 8138 req->hwrm_intf_upd = HWRM_VERSION_UPDATE; 8139 8140 hwrm_req_flags(bp, req, BNXT_HWRM_CTX_SILENT | BNXT_HWRM_FULL_WAIT); 8141 rc = hwrm_req_send(bp, req); 8142 return rc; 8143 } 8144 8145 static int bnxt_hwrm_ver_get(struct bnxt *bp) 8146 { 8147 struct hwrm_ver_get_output *resp; 8148 struct hwrm_ver_get_input *req; 8149 u16 fw_maj, fw_min, fw_bld, fw_rsv; 8150 u32 dev_caps_cfg, hwrm_ver; 8151 int rc, len; 8152 8153 rc = hwrm_req_init(bp, req, HWRM_VER_GET); 8154 if (rc) 8155 return rc; 8156 8157 hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); 8158 bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; 8159 req->hwrm_intf_maj = HWRM_VERSION_MAJOR; 8160 req->hwrm_intf_min = HWRM_VERSION_MINOR; 8161 req->hwrm_intf_upd = HWRM_VERSION_UPDATE; 8162 8163 resp = hwrm_req_hold(bp, req); 8164 rc = hwrm_req_send(bp, req); 8165 if (rc) 8166 goto hwrm_ver_get_exit; 8167 8168 memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output)); 8169 8170 bp->hwrm_spec_code = resp->hwrm_intf_maj_8b << 16 | 8171 resp->hwrm_intf_min_8b << 8 | 8172 resp->hwrm_intf_upd_8b; 8173 if (resp->hwrm_intf_maj_8b < 1) { 8174 netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n", 8175 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, 8176 resp->hwrm_intf_upd_8b); 8177 netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n"); 8178 } 8179 8180 hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 | 8181 HWRM_VERSION_UPDATE; 8182 8183 if (bp->hwrm_spec_code > hwrm_ver) 8184 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", 8185 HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR, 8186 HWRM_VERSION_UPDATE); 8187 else 8188 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", 8189 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, 8190 resp->hwrm_intf_upd_8b); 8191 8192 fw_maj = le16_to_cpu(resp->hwrm_fw_major); 8193 if (bp->hwrm_spec_code > 0x10803 && fw_maj) { 8194 fw_min = le16_to_cpu(resp->hwrm_fw_minor); 8195 fw_bld = le16_to_cpu(resp->hwrm_fw_build); 8196 fw_rsv = le16_to_cpu(resp->hwrm_fw_patch); 8197 len = FW_VER_STR_LEN; 8198 } else { 8199 fw_maj = resp->hwrm_fw_maj_8b; 8200 fw_min = resp->hwrm_fw_min_8b; 8201 fw_bld = resp->hwrm_fw_bld_8b; 8202 fw_rsv = resp->hwrm_fw_rsvd_8b; 8203 len = BC_HWRM_STR_LEN; 8204 } 8205 bp->fw_ver_code = BNXT_FW_VER_CODE(fw_maj, fw_min, fw_bld, fw_rsv); 8206 snprintf(bp->fw_ver_str, len, "%d.%d.%d.%d", fw_maj, fw_min, fw_bld, 8207 fw_rsv); 8208 8209 if (strlen(resp->active_pkg_name)) { 8210 int fw_ver_len = strlen(bp->fw_ver_str); 8211 8212 snprintf(bp->fw_ver_str + fw_ver_len, 8213 FW_VER_STR_LEN - fw_ver_len - 1, "/pkg %s", 8214 resp->active_pkg_name); 8215 bp->fw_cap |= BNXT_FW_CAP_PKG_VER; 8216 } 8217 8218 bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout); 8219 if (!bp->hwrm_cmd_timeout) 8220 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; 8221 bp->hwrm_cmd_max_timeout = le16_to_cpu(resp->max_req_timeout) * 1000; 8222 if (!bp->hwrm_cmd_max_timeout) 8223 bp->hwrm_cmd_max_timeout = HWRM_CMD_MAX_TIMEOUT; 8224 else if (bp->hwrm_cmd_max_timeout > HWRM_CMD_MAX_TIMEOUT) 8225 netdev_warn(bp->dev, "Device requests max timeout of %d seconds, may trigger hung task watchdog\n", 8226 bp->hwrm_cmd_max_timeout / 1000); 8227 8228 if (resp->hwrm_intf_maj_8b >= 1) { 8229 bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len); 8230 bp->hwrm_max_ext_req_len = le16_to_cpu(resp->max_ext_req_len); 8231 } 8232 if (bp->hwrm_max_ext_req_len < HWRM_MAX_REQ_LEN) 8233 bp->hwrm_max_ext_req_len = HWRM_MAX_REQ_LEN; 8234 8235 bp->chip_num = le16_to_cpu(resp->chip_num); 8236 bp->chip_rev = resp->chip_rev; 8237 if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev && 8238 !resp->chip_metal) 8239 bp->flags |= BNXT_FLAG_CHIP_NITRO_A0; 8240 8241 dev_caps_cfg = le32_to_cpu(resp->dev_caps_cfg); 8242 if ((dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) && 8243 (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED)) 8244 bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD; 8245 8246 if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED) 8247 bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL; 8248 8249 if (dev_caps_cfg & 8250 VER_GET_RESP_DEV_CAPS_CFG_FLOW_HANDLE_64BIT_SUPPORTED) 8251 bp->fw_cap |= BNXT_FW_CAP_OVS_64BIT_HANDLE; 8252 8253 if (dev_caps_cfg & 8254 VER_GET_RESP_DEV_CAPS_CFG_TRUSTED_VF_SUPPORTED) 8255 bp->fw_cap |= BNXT_FW_CAP_TRUSTED_VF; 8256 8257 if (dev_caps_cfg & 8258 VER_GET_RESP_DEV_CAPS_CFG_CFA_ADV_FLOW_MGNT_SUPPORTED) 8259 bp->fw_cap |= BNXT_FW_CAP_CFA_ADV_FLOW; 8260 8261 hwrm_ver_get_exit: 8262 hwrm_req_drop(bp, req); 8263 return rc; 8264 } 8265 8266 int bnxt_hwrm_fw_set_time(struct bnxt *bp) 8267 { 8268 struct hwrm_fw_set_time_input *req; 8269 struct tm tm; 8270 time64_t now = ktime_get_real_seconds(); 8271 int rc; 8272 8273 if ((BNXT_VF(bp) && bp->hwrm_spec_code < 0x10901) || 8274 bp->hwrm_spec_code < 0x10400) 8275 return -EOPNOTSUPP; 8276 8277 time64_to_tm(now, 0, &tm); 8278 rc = hwrm_req_init(bp, req, HWRM_FW_SET_TIME); 8279 if (rc) 8280 return rc; 8281 8282 req->year = cpu_to_le16(1900 + tm.tm_year); 8283 req->month = 1 + tm.tm_mon; 8284 req->day = tm.tm_mday; 8285 req->hour = tm.tm_hour; 8286 req->minute = tm.tm_min; 8287 req->second = tm.tm_sec; 8288 return hwrm_req_send(bp, req); 8289 } 8290 8291 static void bnxt_add_one_ctr(u64 hw, u64 *sw, u64 mask) 8292 { 8293 u64 sw_tmp; 8294 8295 hw &= mask; 8296 sw_tmp = (*sw & ~mask) | hw; 8297 if (hw < (*sw & mask)) 8298 sw_tmp += mask + 1; 8299 WRITE_ONCE(*sw, sw_tmp); 8300 } 8301 8302 static void __bnxt_accumulate_stats(__le64 *hw_stats, u64 *sw_stats, u64 *masks, 8303 int count, bool ignore_zero) 8304 { 8305 int i; 8306 8307 for (i = 0; i < count; i++) { 8308 u64 hw = le64_to_cpu(READ_ONCE(hw_stats[i])); 8309 8310 if (ignore_zero && !hw) 8311 continue; 8312 8313 if (masks[i] == -1ULL) 8314 sw_stats[i] = hw; 8315 else 8316 bnxt_add_one_ctr(hw, &sw_stats[i], masks[i]); 8317 } 8318 } 8319 8320 static void bnxt_accumulate_stats(struct bnxt_stats_mem *stats) 8321 { 8322 if (!stats->hw_stats) 8323 return; 8324 8325 __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, 8326 stats->hw_masks, stats->len / 8, false); 8327 } 8328 8329 static void bnxt_accumulate_all_stats(struct bnxt *bp) 8330 { 8331 struct bnxt_stats_mem *ring0_stats; 8332 bool ignore_zero = false; 8333 int i; 8334 8335 /* Chip bug. Counter intermittently becomes 0. */ 8336 if (bp->flags & BNXT_FLAG_CHIP_P5) 8337 ignore_zero = true; 8338 8339 for (i = 0; i < bp->cp_nr_rings; i++) { 8340 struct bnxt_napi *bnapi = bp->bnapi[i]; 8341 struct bnxt_cp_ring_info *cpr; 8342 struct bnxt_stats_mem *stats; 8343 8344 cpr = &bnapi->cp_ring; 8345 stats = &cpr->stats; 8346 if (!i) 8347 ring0_stats = stats; 8348 __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, 8349 ring0_stats->hw_masks, 8350 ring0_stats->len / 8, ignore_zero); 8351 } 8352 if (bp->flags & BNXT_FLAG_PORT_STATS) { 8353 struct bnxt_stats_mem *stats = &bp->port_stats; 8354 __le64 *hw_stats = stats->hw_stats; 8355 u64 *sw_stats = stats->sw_stats; 8356 u64 *masks = stats->hw_masks; 8357 int cnt; 8358 8359 cnt = sizeof(struct rx_port_stats) / 8; 8360 __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); 8361 8362 hw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 8363 sw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 8364 masks += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 8365 cnt = sizeof(struct tx_port_stats) / 8; 8366 __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); 8367 } 8368 if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { 8369 bnxt_accumulate_stats(&bp->rx_port_stats_ext); 8370 bnxt_accumulate_stats(&bp->tx_port_stats_ext); 8371 } 8372 } 8373 8374 static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags) 8375 { 8376 struct hwrm_port_qstats_input *req; 8377 struct bnxt_pf_info *pf = &bp->pf; 8378 int rc; 8379 8380 if (!(bp->flags & BNXT_FLAG_PORT_STATS)) 8381 return 0; 8382 8383 if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) 8384 return -EOPNOTSUPP; 8385 8386 rc = hwrm_req_init(bp, req, HWRM_PORT_QSTATS); 8387 if (rc) 8388 return rc; 8389 8390 req->flags = flags; 8391 req->port_id = cpu_to_le16(pf->port_id); 8392 req->tx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map + 8393 BNXT_TX_PORT_STATS_BYTE_OFFSET); 8394 req->rx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map); 8395 return hwrm_req_send(bp, req); 8396 } 8397 8398 static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags) 8399 { 8400 struct hwrm_queue_pri2cos_qcfg_output *resp_qc; 8401 struct hwrm_queue_pri2cos_qcfg_input *req_qc; 8402 struct hwrm_port_qstats_ext_output *resp_qs; 8403 struct hwrm_port_qstats_ext_input *req_qs; 8404 struct bnxt_pf_info *pf = &bp->pf; 8405 u32 tx_stat_size; 8406 int rc; 8407 8408 if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT)) 8409 return 0; 8410 8411 if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) 8412 return -EOPNOTSUPP; 8413 8414 rc = hwrm_req_init(bp, req_qs, HWRM_PORT_QSTATS_EXT); 8415 if (rc) 8416 return rc; 8417 8418 req_qs->flags = flags; 8419 req_qs->port_id = cpu_to_le16(pf->port_id); 8420 req_qs->rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext)); 8421 req_qs->rx_stat_host_addr = cpu_to_le64(bp->rx_port_stats_ext.hw_stats_map); 8422 tx_stat_size = bp->tx_port_stats_ext.hw_stats ? 8423 sizeof(struct tx_port_stats_ext) : 0; 8424 req_qs->tx_stat_size = cpu_to_le16(tx_stat_size); 8425 req_qs->tx_stat_host_addr = cpu_to_le64(bp->tx_port_stats_ext.hw_stats_map); 8426 resp_qs = hwrm_req_hold(bp, req_qs); 8427 rc = hwrm_req_send(bp, req_qs); 8428 if (!rc) { 8429 bp->fw_rx_stats_ext_size = 8430 le16_to_cpu(resp_qs->rx_stat_size) / 8; 8431 if (BNXT_FW_MAJ(bp) < 220 && 8432 bp->fw_rx_stats_ext_size > BNXT_RX_STATS_EXT_NUM_LEGACY) 8433 bp->fw_rx_stats_ext_size = BNXT_RX_STATS_EXT_NUM_LEGACY; 8434 8435 bp->fw_tx_stats_ext_size = tx_stat_size ? 8436 le16_to_cpu(resp_qs->tx_stat_size) / 8 : 0; 8437 } else { 8438 bp->fw_rx_stats_ext_size = 0; 8439 bp->fw_tx_stats_ext_size = 0; 8440 } 8441 hwrm_req_drop(bp, req_qs); 8442 8443 if (flags) 8444 return rc; 8445 8446 if (bp->fw_tx_stats_ext_size <= 8447 offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) { 8448 bp->pri2cos_valid = 0; 8449 return rc; 8450 } 8451 8452 rc = hwrm_req_init(bp, req_qc, HWRM_QUEUE_PRI2COS_QCFG); 8453 if (rc) 8454 return rc; 8455 8456 req_qc->flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); 8457 8458 resp_qc = hwrm_req_hold(bp, req_qc); 8459 rc = hwrm_req_send(bp, req_qc); 8460 if (!rc) { 8461 u8 *pri2cos; 8462 int i, j; 8463 8464 pri2cos = &resp_qc->pri0_cos_queue_id; 8465 for (i = 0; i < 8; i++) { 8466 u8 queue_id = pri2cos[i]; 8467 u8 queue_idx; 8468 8469 /* Per port queue IDs start from 0, 10, 20, etc */ 8470 queue_idx = queue_id % 10; 8471 if (queue_idx > BNXT_MAX_QUEUE) { 8472 bp->pri2cos_valid = false; 8473 hwrm_req_drop(bp, req_qc); 8474 return rc; 8475 } 8476 for (j = 0; j < bp->max_q; j++) { 8477 if (bp->q_ids[j] == queue_id) 8478 bp->pri2cos_idx[i] = queue_idx; 8479 } 8480 } 8481 bp->pri2cos_valid = true; 8482 } 8483 hwrm_req_drop(bp, req_qc); 8484 8485 return rc; 8486 } 8487 8488 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp) 8489 { 8490 bnxt_hwrm_tunnel_dst_port_free(bp, 8491 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); 8492 bnxt_hwrm_tunnel_dst_port_free(bp, 8493 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); 8494 } 8495 8496 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa) 8497 { 8498 int rc, i; 8499 u32 tpa_flags = 0; 8500 8501 if (set_tpa) 8502 tpa_flags = bp->flags & BNXT_FLAG_TPA; 8503 else if (BNXT_NO_FW_ACCESS(bp)) 8504 return 0; 8505 for (i = 0; i < bp->nr_vnics; i++) { 8506 rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags); 8507 if (rc) { 8508 netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n", 8509 i, rc); 8510 return rc; 8511 } 8512 } 8513 return 0; 8514 } 8515 8516 static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp) 8517 { 8518 int i; 8519 8520 for (i = 0; i < bp->nr_vnics; i++) 8521 bnxt_hwrm_vnic_set_rss(bp, i, false); 8522 } 8523 8524 static void bnxt_clear_vnic(struct bnxt *bp) 8525 { 8526 if (!bp->vnic_info) 8527 return; 8528 8529 bnxt_hwrm_clear_vnic_filter(bp); 8530 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) { 8531 /* clear all RSS setting before free vnic ctx */ 8532 bnxt_hwrm_clear_vnic_rss(bp); 8533 bnxt_hwrm_vnic_ctx_free(bp); 8534 } 8535 /* before free the vnic, undo the vnic tpa settings */ 8536 if (bp->flags & BNXT_FLAG_TPA) 8537 bnxt_set_tpa(bp, false); 8538 bnxt_hwrm_vnic_free(bp); 8539 if (bp->flags & BNXT_FLAG_CHIP_P5) 8540 bnxt_hwrm_vnic_ctx_free(bp); 8541 } 8542 8543 static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path, 8544 bool irq_re_init) 8545 { 8546 bnxt_clear_vnic(bp); 8547 bnxt_hwrm_ring_free(bp, close_path); 8548 bnxt_hwrm_ring_grp_free(bp); 8549 if (irq_re_init) { 8550 bnxt_hwrm_stat_ctx_free(bp); 8551 bnxt_hwrm_free_tunnel_ports(bp); 8552 } 8553 } 8554 8555 static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode) 8556 { 8557 struct hwrm_func_cfg_input *req; 8558 u8 evb_mode; 8559 int rc; 8560 8561 if (br_mode == BRIDGE_MODE_VEB) 8562 evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB; 8563 else if (br_mode == BRIDGE_MODE_VEPA) 8564 evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA; 8565 else 8566 return -EINVAL; 8567 8568 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); 8569 if (rc) 8570 return rc; 8571 8572 req->fid = cpu_to_le16(0xffff); 8573 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_EVB_MODE); 8574 req->evb_mode = evb_mode; 8575 return hwrm_req_send(bp, req); 8576 } 8577 8578 static int bnxt_hwrm_set_cache_line_size(struct bnxt *bp, int size) 8579 { 8580 struct hwrm_func_cfg_input *req; 8581 int rc; 8582 8583 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10803) 8584 return 0; 8585 8586 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); 8587 if (rc) 8588 return rc; 8589 8590 req->fid = cpu_to_le16(0xffff); 8591 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_CACHE_LINESIZE); 8592 req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_64; 8593 if (size == 128) 8594 req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128; 8595 8596 return hwrm_req_send(bp, req); 8597 } 8598 8599 static int __bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id) 8600 { 8601 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 8602 int rc; 8603 8604 if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) 8605 goto skip_rss_ctx; 8606 8607 /* allocate context for vnic */ 8608 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0); 8609 if (rc) { 8610 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 8611 vnic_id, rc); 8612 goto vnic_setup_err; 8613 } 8614 bp->rsscos_nr_ctxs++; 8615 8616 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 8617 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1); 8618 if (rc) { 8619 netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n", 8620 vnic_id, rc); 8621 goto vnic_setup_err; 8622 } 8623 bp->rsscos_nr_ctxs++; 8624 } 8625 8626 skip_rss_ctx: 8627 /* configure default vnic, ring grp */ 8628 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id); 8629 if (rc) { 8630 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", 8631 vnic_id, rc); 8632 goto vnic_setup_err; 8633 } 8634 8635 /* Enable RSS hashing on vnic */ 8636 rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true); 8637 if (rc) { 8638 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n", 8639 vnic_id, rc); 8640 goto vnic_setup_err; 8641 } 8642 8643 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 8644 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id); 8645 if (rc) { 8646 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", 8647 vnic_id, rc); 8648 } 8649 } 8650 8651 vnic_setup_err: 8652 return rc; 8653 } 8654 8655 static int __bnxt_setup_vnic_p5(struct bnxt *bp, u16 vnic_id) 8656 { 8657 int rc, i, nr_ctxs; 8658 8659 nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); 8660 for (i = 0; i < nr_ctxs; i++) { 8661 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, i); 8662 if (rc) { 8663 netdev_err(bp->dev, "hwrm vnic %d ctx %d alloc failure rc: %x\n", 8664 vnic_id, i, rc); 8665 break; 8666 } 8667 bp->rsscos_nr_ctxs++; 8668 } 8669 if (i < nr_ctxs) 8670 return -ENOMEM; 8671 8672 rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic_id, true); 8673 if (rc) { 8674 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n", 8675 vnic_id, rc); 8676 return rc; 8677 } 8678 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id); 8679 if (rc) { 8680 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", 8681 vnic_id, rc); 8682 return rc; 8683 } 8684 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 8685 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id); 8686 if (rc) { 8687 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", 8688 vnic_id, rc); 8689 } 8690 } 8691 return rc; 8692 } 8693 8694 static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id) 8695 { 8696 if (bp->flags & BNXT_FLAG_CHIP_P5) 8697 return __bnxt_setup_vnic_p5(bp, vnic_id); 8698 else 8699 return __bnxt_setup_vnic(bp, vnic_id); 8700 } 8701 8702 static int bnxt_alloc_rfs_vnics(struct bnxt *bp) 8703 { 8704 #ifdef CONFIG_RFS_ACCEL 8705 int i, rc = 0; 8706 8707 if (bp->flags & BNXT_FLAG_CHIP_P5) 8708 return 0; 8709 8710 for (i = 0; i < bp->rx_nr_rings; i++) { 8711 struct bnxt_vnic_info *vnic; 8712 u16 vnic_id = i + 1; 8713 u16 ring_id = i; 8714 8715 if (vnic_id >= bp->nr_vnics) 8716 break; 8717 8718 vnic = &bp->vnic_info[vnic_id]; 8719 vnic->flags |= BNXT_VNIC_RFS_FLAG; 8720 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 8721 vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG; 8722 rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1); 8723 if (rc) { 8724 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 8725 vnic_id, rc); 8726 break; 8727 } 8728 rc = bnxt_setup_vnic(bp, vnic_id); 8729 if (rc) 8730 break; 8731 } 8732 return rc; 8733 #else 8734 return 0; 8735 #endif 8736 } 8737 8738 /* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */ 8739 static bool bnxt_promisc_ok(struct bnxt *bp) 8740 { 8741 #ifdef CONFIG_BNXT_SRIOV 8742 if (BNXT_VF(bp) && !bp->vf.vlan && !bnxt_is_trusted_vf(bp, &bp->vf)) 8743 return false; 8744 #endif 8745 return true; 8746 } 8747 8748 static int bnxt_setup_nitroa0_vnic(struct bnxt *bp) 8749 { 8750 unsigned int rc = 0; 8751 8752 rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1); 8753 if (rc) { 8754 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 8755 rc); 8756 return rc; 8757 } 8758 8759 rc = bnxt_hwrm_vnic_cfg(bp, 1); 8760 if (rc) { 8761 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 8762 rc); 8763 return rc; 8764 } 8765 return rc; 8766 } 8767 8768 static int bnxt_cfg_rx_mode(struct bnxt *); 8769 static bool bnxt_mc_list_updated(struct bnxt *, u32 *); 8770 8771 static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) 8772 { 8773 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 8774 int rc = 0; 8775 unsigned int rx_nr_rings = bp->rx_nr_rings; 8776 8777 if (irq_re_init) { 8778 rc = bnxt_hwrm_stat_ctx_alloc(bp); 8779 if (rc) { 8780 netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n", 8781 rc); 8782 goto err_out; 8783 } 8784 } 8785 8786 rc = bnxt_hwrm_ring_alloc(bp); 8787 if (rc) { 8788 netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc); 8789 goto err_out; 8790 } 8791 8792 rc = bnxt_hwrm_ring_grp_alloc(bp); 8793 if (rc) { 8794 netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc); 8795 goto err_out; 8796 } 8797 8798 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 8799 rx_nr_rings--; 8800 8801 /* default vnic 0 */ 8802 rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings); 8803 if (rc) { 8804 netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc); 8805 goto err_out; 8806 } 8807 8808 rc = bnxt_setup_vnic(bp, 0); 8809 if (rc) 8810 goto err_out; 8811 8812 if (bp->flags & BNXT_FLAG_RFS) { 8813 rc = bnxt_alloc_rfs_vnics(bp); 8814 if (rc) 8815 goto err_out; 8816 } 8817 8818 if (bp->flags & BNXT_FLAG_TPA) { 8819 rc = bnxt_set_tpa(bp, true); 8820 if (rc) 8821 goto err_out; 8822 } 8823 8824 if (BNXT_VF(bp)) 8825 bnxt_update_vf_mac(bp); 8826 8827 /* Filter for default vnic 0 */ 8828 rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr); 8829 if (rc) { 8830 if (BNXT_VF(bp) && rc == -ENODEV) 8831 netdev_err(bp->dev, "Cannot configure L2 filter while PF is unavailable\n"); 8832 else 8833 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); 8834 goto err_out; 8835 } 8836 vnic->uc_filter_count = 1; 8837 8838 vnic->rx_mask = 0; 8839 if (test_bit(BNXT_STATE_HALF_OPEN, &bp->state)) 8840 goto skip_rx_mask; 8841 8842 if (bp->dev->flags & IFF_BROADCAST) 8843 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; 8844 8845 if (bp->dev->flags & IFF_PROMISC) 8846 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 8847 8848 if (bp->dev->flags & IFF_ALLMULTI) { 8849 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 8850 vnic->mc_list_count = 0; 8851 } else if (bp->dev->flags & IFF_MULTICAST) { 8852 u32 mask = 0; 8853 8854 bnxt_mc_list_updated(bp, &mask); 8855 vnic->rx_mask |= mask; 8856 } 8857 8858 rc = bnxt_cfg_rx_mode(bp); 8859 if (rc) 8860 goto err_out; 8861 8862 skip_rx_mask: 8863 rc = bnxt_hwrm_set_coal(bp); 8864 if (rc) 8865 netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n", 8866 rc); 8867 8868 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 8869 rc = bnxt_setup_nitroa0_vnic(bp); 8870 if (rc) 8871 netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n", 8872 rc); 8873 } 8874 8875 if (BNXT_VF(bp)) { 8876 bnxt_hwrm_func_qcfg(bp); 8877 netdev_update_features(bp->dev); 8878 } 8879 8880 return 0; 8881 8882 err_out: 8883 bnxt_hwrm_resource_free(bp, 0, true); 8884 8885 return rc; 8886 } 8887 8888 static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init) 8889 { 8890 bnxt_hwrm_resource_free(bp, 1, irq_re_init); 8891 return 0; 8892 } 8893 8894 static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) 8895 { 8896 bnxt_init_cp_rings(bp); 8897 bnxt_init_rx_rings(bp); 8898 bnxt_init_tx_rings(bp); 8899 bnxt_init_ring_grps(bp, irq_re_init); 8900 bnxt_init_vnics(bp); 8901 8902 return bnxt_init_chip(bp, irq_re_init); 8903 } 8904 8905 static int bnxt_set_real_num_queues(struct bnxt *bp) 8906 { 8907 int rc; 8908 struct net_device *dev = bp->dev; 8909 8910 rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings - 8911 bp->tx_nr_rings_xdp); 8912 if (rc) 8913 return rc; 8914 8915 rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings); 8916 if (rc) 8917 return rc; 8918 8919 #ifdef CONFIG_RFS_ACCEL 8920 if (bp->flags & BNXT_FLAG_RFS) 8921 dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings); 8922 #endif 8923 8924 return rc; 8925 } 8926 8927 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 8928 bool shared) 8929 { 8930 int _rx = *rx, _tx = *tx; 8931 8932 if (shared) { 8933 *rx = min_t(int, _rx, max); 8934 *tx = min_t(int, _tx, max); 8935 } else { 8936 if (max < 2) 8937 return -ENOMEM; 8938 8939 while (_rx + _tx > max) { 8940 if (_rx > _tx && _rx > 1) 8941 _rx--; 8942 else if (_tx > 1) 8943 _tx--; 8944 } 8945 *rx = _rx; 8946 *tx = _tx; 8947 } 8948 return 0; 8949 } 8950 8951 static void bnxt_setup_msix(struct bnxt *bp) 8952 { 8953 const int len = sizeof(bp->irq_tbl[0].name); 8954 struct net_device *dev = bp->dev; 8955 int tcs, i; 8956 8957 tcs = netdev_get_num_tc(dev); 8958 if (tcs) { 8959 int i, off, count; 8960 8961 for (i = 0; i < tcs; i++) { 8962 count = bp->tx_nr_rings_per_tc; 8963 off = i * count; 8964 netdev_set_tc_queue(dev, i, count, off); 8965 } 8966 } 8967 8968 for (i = 0; i < bp->cp_nr_rings; i++) { 8969 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 8970 char *attr; 8971 8972 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 8973 attr = "TxRx"; 8974 else if (i < bp->rx_nr_rings) 8975 attr = "rx"; 8976 else 8977 attr = "tx"; 8978 8979 snprintf(bp->irq_tbl[map_idx].name, len, "%s-%s-%d", dev->name, 8980 attr, i); 8981 bp->irq_tbl[map_idx].handler = bnxt_msix; 8982 } 8983 } 8984 8985 static void bnxt_setup_inta(struct bnxt *bp) 8986 { 8987 const int len = sizeof(bp->irq_tbl[0].name); 8988 8989 if (netdev_get_num_tc(bp->dev)) 8990 netdev_reset_tc(bp->dev); 8991 8992 snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx", 8993 0); 8994 bp->irq_tbl[0].handler = bnxt_inta; 8995 } 8996 8997 static int bnxt_init_int_mode(struct bnxt *bp); 8998 8999 static int bnxt_setup_int_mode(struct bnxt *bp) 9000 { 9001 int rc; 9002 9003 if (!bp->irq_tbl) { 9004 rc = bnxt_init_int_mode(bp); 9005 if (rc || !bp->irq_tbl) 9006 return rc ?: -ENODEV; 9007 } 9008 9009 if (bp->flags & BNXT_FLAG_USING_MSIX) 9010 bnxt_setup_msix(bp); 9011 else 9012 bnxt_setup_inta(bp); 9013 9014 rc = bnxt_set_real_num_queues(bp); 9015 return rc; 9016 } 9017 9018 #ifdef CONFIG_RFS_ACCEL 9019 static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp) 9020 { 9021 return bp->hw_resc.max_rsscos_ctxs; 9022 } 9023 9024 static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp) 9025 { 9026 return bp->hw_resc.max_vnics; 9027 } 9028 #endif 9029 9030 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp) 9031 { 9032 return bp->hw_resc.max_stat_ctxs; 9033 } 9034 9035 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp) 9036 { 9037 return bp->hw_resc.max_cp_rings; 9038 } 9039 9040 static unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp) 9041 { 9042 unsigned int cp = bp->hw_resc.max_cp_rings; 9043 9044 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 9045 cp -= bnxt_get_ulp_msix_num(bp); 9046 9047 return cp; 9048 } 9049 9050 static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) 9051 { 9052 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 9053 9054 if (bp->flags & BNXT_FLAG_CHIP_P5) 9055 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_nqs); 9056 9057 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_cp_rings); 9058 } 9059 9060 static void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs) 9061 { 9062 bp->hw_resc.max_irqs = max_irqs; 9063 } 9064 9065 unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp) 9066 { 9067 unsigned int cp; 9068 9069 cp = bnxt_get_max_func_cp_rings_for_en(bp); 9070 if (bp->flags & BNXT_FLAG_CHIP_P5) 9071 return cp - bp->rx_nr_rings - bp->tx_nr_rings; 9072 else 9073 return cp - bp->cp_nr_rings; 9074 } 9075 9076 unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp) 9077 { 9078 return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp); 9079 } 9080 9081 int bnxt_get_avail_msix(struct bnxt *bp, int num) 9082 { 9083 int max_cp = bnxt_get_max_func_cp_rings(bp); 9084 int max_irq = bnxt_get_max_func_irqs(bp); 9085 int total_req = bp->cp_nr_rings + num; 9086 int max_idx, avail_msix; 9087 9088 max_idx = bp->total_irqs; 9089 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 9090 max_idx = min_t(int, bp->total_irqs, max_cp); 9091 avail_msix = max_idx - bp->cp_nr_rings; 9092 if (!BNXT_NEW_RM(bp) || avail_msix >= num) 9093 return avail_msix; 9094 9095 if (max_irq < total_req) { 9096 num = max_irq - bp->cp_nr_rings; 9097 if (num <= 0) 9098 return 0; 9099 } 9100 return num; 9101 } 9102 9103 static int bnxt_get_num_msix(struct bnxt *bp) 9104 { 9105 if (!BNXT_NEW_RM(bp)) 9106 return bnxt_get_max_func_irqs(bp); 9107 9108 return bnxt_nq_rings_in_use(bp); 9109 } 9110 9111 static int bnxt_init_msix(struct bnxt *bp) 9112 { 9113 int i, total_vecs, max, rc = 0, min = 1, ulp_msix; 9114 struct msix_entry *msix_ent; 9115 9116 total_vecs = bnxt_get_num_msix(bp); 9117 max = bnxt_get_max_func_irqs(bp); 9118 if (total_vecs > max) 9119 total_vecs = max; 9120 9121 if (!total_vecs) 9122 return 0; 9123 9124 msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL); 9125 if (!msix_ent) 9126 return -ENOMEM; 9127 9128 for (i = 0; i < total_vecs; i++) { 9129 msix_ent[i].entry = i; 9130 msix_ent[i].vector = 0; 9131 } 9132 9133 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS)) 9134 min = 2; 9135 9136 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs); 9137 ulp_msix = bnxt_get_ulp_msix_num(bp); 9138 if (total_vecs < 0 || total_vecs < ulp_msix) { 9139 rc = -ENODEV; 9140 goto msix_setup_exit; 9141 } 9142 9143 bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL); 9144 if (bp->irq_tbl) { 9145 for (i = 0; i < total_vecs; i++) 9146 bp->irq_tbl[i].vector = msix_ent[i].vector; 9147 9148 bp->total_irqs = total_vecs; 9149 /* Trim rings based upon num of vectors allocated */ 9150 rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings, 9151 total_vecs - ulp_msix, min == 1); 9152 if (rc) 9153 goto msix_setup_exit; 9154 9155 bp->cp_nr_rings = (min == 1) ? 9156 max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : 9157 bp->tx_nr_rings + bp->rx_nr_rings; 9158 9159 } else { 9160 rc = -ENOMEM; 9161 goto msix_setup_exit; 9162 } 9163 bp->flags |= BNXT_FLAG_USING_MSIX; 9164 kfree(msix_ent); 9165 return 0; 9166 9167 msix_setup_exit: 9168 netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc); 9169 kfree(bp->irq_tbl); 9170 bp->irq_tbl = NULL; 9171 pci_disable_msix(bp->pdev); 9172 kfree(msix_ent); 9173 return rc; 9174 } 9175 9176 static int bnxt_init_inta(struct bnxt *bp) 9177 { 9178 bp->irq_tbl = kzalloc(sizeof(struct bnxt_irq), GFP_KERNEL); 9179 if (!bp->irq_tbl) 9180 return -ENOMEM; 9181 9182 bp->total_irqs = 1; 9183 bp->rx_nr_rings = 1; 9184 bp->tx_nr_rings = 1; 9185 bp->cp_nr_rings = 1; 9186 bp->flags |= BNXT_FLAG_SHARED_RINGS; 9187 bp->irq_tbl[0].vector = bp->pdev->irq; 9188 return 0; 9189 } 9190 9191 static int bnxt_init_int_mode(struct bnxt *bp) 9192 { 9193 int rc = -ENODEV; 9194 9195 if (bp->flags & BNXT_FLAG_MSIX_CAP) 9196 rc = bnxt_init_msix(bp); 9197 9198 if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) { 9199 /* fallback to INTA */ 9200 rc = bnxt_init_inta(bp); 9201 } 9202 return rc; 9203 } 9204 9205 static void bnxt_clear_int_mode(struct bnxt *bp) 9206 { 9207 if (bp->flags & BNXT_FLAG_USING_MSIX) 9208 pci_disable_msix(bp->pdev); 9209 9210 kfree(bp->irq_tbl); 9211 bp->irq_tbl = NULL; 9212 bp->flags &= ~BNXT_FLAG_USING_MSIX; 9213 } 9214 9215 int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init) 9216 { 9217 int tcs = netdev_get_num_tc(bp->dev); 9218 bool irq_cleared = false; 9219 int rc; 9220 9221 if (!bnxt_need_reserve_rings(bp)) 9222 return 0; 9223 9224 if (irq_re_init && BNXT_NEW_RM(bp) && 9225 bnxt_get_num_msix(bp) != bp->total_irqs) { 9226 bnxt_ulp_irq_stop(bp); 9227 bnxt_clear_int_mode(bp); 9228 irq_cleared = true; 9229 } 9230 rc = __bnxt_reserve_rings(bp); 9231 if (irq_cleared) { 9232 if (!rc) 9233 rc = bnxt_init_int_mode(bp); 9234 bnxt_ulp_irq_restart(bp, rc); 9235 } 9236 if (rc) { 9237 netdev_err(bp->dev, "ring reservation/IRQ init failure rc: %d\n", rc); 9238 return rc; 9239 } 9240 if (tcs && (bp->tx_nr_rings_per_tc * tcs != bp->tx_nr_rings)) { 9241 netdev_err(bp->dev, "tx ring reservation failure\n"); 9242 netdev_reset_tc(bp->dev); 9243 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 9244 return -ENOMEM; 9245 } 9246 return 0; 9247 } 9248 9249 static void bnxt_free_irq(struct bnxt *bp) 9250 { 9251 struct bnxt_irq *irq; 9252 int i; 9253 9254 #ifdef CONFIG_RFS_ACCEL 9255 free_irq_cpu_rmap(bp->dev->rx_cpu_rmap); 9256 bp->dev->rx_cpu_rmap = NULL; 9257 #endif 9258 if (!bp->irq_tbl || !bp->bnapi) 9259 return; 9260 9261 for (i = 0; i < bp->cp_nr_rings; i++) { 9262 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 9263 9264 irq = &bp->irq_tbl[map_idx]; 9265 if (irq->requested) { 9266 if (irq->have_cpumask) { 9267 irq_set_affinity_hint(irq->vector, NULL); 9268 free_cpumask_var(irq->cpu_mask); 9269 irq->have_cpumask = 0; 9270 } 9271 free_irq(irq->vector, bp->bnapi[i]); 9272 } 9273 9274 irq->requested = 0; 9275 } 9276 } 9277 9278 static int bnxt_request_irq(struct bnxt *bp) 9279 { 9280 int i, j, rc = 0; 9281 unsigned long flags = 0; 9282 #ifdef CONFIG_RFS_ACCEL 9283 struct cpu_rmap *rmap; 9284 #endif 9285 9286 rc = bnxt_setup_int_mode(bp); 9287 if (rc) { 9288 netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n", 9289 rc); 9290 return rc; 9291 } 9292 #ifdef CONFIG_RFS_ACCEL 9293 rmap = bp->dev->rx_cpu_rmap; 9294 #endif 9295 if (!(bp->flags & BNXT_FLAG_USING_MSIX)) 9296 flags = IRQF_SHARED; 9297 9298 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { 9299 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 9300 struct bnxt_irq *irq = &bp->irq_tbl[map_idx]; 9301 9302 #ifdef CONFIG_RFS_ACCEL 9303 if (rmap && bp->bnapi[i]->rx_ring) { 9304 rc = irq_cpu_rmap_add(rmap, irq->vector); 9305 if (rc) 9306 netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n", 9307 j); 9308 j++; 9309 } 9310 #endif 9311 rc = request_irq(irq->vector, irq->handler, flags, irq->name, 9312 bp->bnapi[i]); 9313 if (rc) 9314 break; 9315 9316 irq->requested = 1; 9317 9318 if (zalloc_cpumask_var(&irq->cpu_mask, GFP_KERNEL)) { 9319 int numa_node = dev_to_node(&bp->pdev->dev); 9320 9321 irq->have_cpumask = 1; 9322 cpumask_set_cpu(cpumask_local_spread(i, numa_node), 9323 irq->cpu_mask); 9324 rc = irq_set_affinity_hint(irq->vector, irq->cpu_mask); 9325 if (rc) { 9326 netdev_warn(bp->dev, 9327 "Set affinity failed, IRQ = %d\n", 9328 irq->vector); 9329 break; 9330 } 9331 } 9332 } 9333 return rc; 9334 } 9335 9336 static void bnxt_del_napi(struct bnxt *bp) 9337 { 9338 int i; 9339 9340 if (!bp->bnapi) 9341 return; 9342 9343 for (i = 0; i < bp->cp_nr_rings; i++) { 9344 struct bnxt_napi *bnapi = bp->bnapi[i]; 9345 9346 __netif_napi_del(&bnapi->napi); 9347 } 9348 /* We called __netif_napi_del(), we need 9349 * to respect an RCU grace period before freeing napi structures. 9350 */ 9351 synchronize_net(); 9352 } 9353 9354 static void bnxt_init_napi(struct bnxt *bp) 9355 { 9356 int i; 9357 unsigned int cp_nr_rings = bp->cp_nr_rings; 9358 struct bnxt_napi *bnapi; 9359 9360 if (bp->flags & BNXT_FLAG_USING_MSIX) { 9361 int (*poll_fn)(struct napi_struct *, int) = bnxt_poll; 9362 9363 if (bp->flags & BNXT_FLAG_CHIP_P5) 9364 poll_fn = bnxt_poll_p5; 9365 else if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 9366 cp_nr_rings--; 9367 for (i = 0; i < cp_nr_rings; i++) { 9368 bnapi = bp->bnapi[i]; 9369 netif_napi_add(bp->dev, &bnapi->napi, poll_fn); 9370 } 9371 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 9372 bnapi = bp->bnapi[cp_nr_rings]; 9373 netif_napi_add(bp->dev, &bnapi->napi, 9374 bnxt_poll_nitroa0); 9375 } 9376 } else { 9377 bnapi = bp->bnapi[0]; 9378 netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll); 9379 } 9380 } 9381 9382 static void bnxt_disable_napi(struct bnxt *bp) 9383 { 9384 int i; 9385 9386 if (!bp->bnapi || 9387 test_and_set_bit(BNXT_STATE_NAPI_DISABLED, &bp->state)) 9388 return; 9389 9390 for (i = 0; i < bp->cp_nr_rings; i++) { 9391 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; 9392 9393 napi_disable(&bp->bnapi[i]->napi); 9394 if (bp->bnapi[i]->rx_ring) 9395 cancel_work_sync(&cpr->dim.work); 9396 } 9397 } 9398 9399 static void bnxt_enable_napi(struct bnxt *bp) 9400 { 9401 int i; 9402 9403 clear_bit(BNXT_STATE_NAPI_DISABLED, &bp->state); 9404 for (i = 0; i < bp->cp_nr_rings; i++) { 9405 struct bnxt_napi *bnapi = bp->bnapi[i]; 9406 struct bnxt_cp_ring_info *cpr; 9407 9408 cpr = &bnapi->cp_ring; 9409 if (bnapi->in_reset) 9410 cpr->sw_stats.rx.rx_resets++; 9411 bnapi->in_reset = false; 9412 9413 if (bnapi->rx_ring) { 9414 INIT_WORK(&cpr->dim.work, bnxt_dim_work); 9415 cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; 9416 } 9417 napi_enable(&bnapi->napi); 9418 } 9419 } 9420 9421 void bnxt_tx_disable(struct bnxt *bp) 9422 { 9423 int i; 9424 struct bnxt_tx_ring_info *txr; 9425 9426 if (bp->tx_ring) { 9427 for (i = 0; i < bp->tx_nr_rings; i++) { 9428 txr = &bp->tx_ring[i]; 9429 WRITE_ONCE(txr->dev_state, BNXT_DEV_STATE_CLOSING); 9430 } 9431 } 9432 /* Make sure napi polls see @dev_state change */ 9433 synchronize_net(); 9434 /* Drop carrier first to prevent TX timeout */ 9435 netif_carrier_off(bp->dev); 9436 /* Stop all TX queues */ 9437 netif_tx_disable(bp->dev); 9438 } 9439 9440 void bnxt_tx_enable(struct bnxt *bp) 9441 { 9442 int i; 9443 struct bnxt_tx_ring_info *txr; 9444 9445 for (i = 0; i < bp->tx_nr_rings; i++) { 9446 txr = &bp->tx_ring[i]; 9447 WRITE_ONCE(txr->dev_state, 0); 9448 } 9449 /* Make sure napi polls see @dev_state change */ 9450 synchronize_net(); 9451 netif_tx_wake_all_queues(bp->dev); 9452 if (BNXT_LINK_IS_UP(bp)) 9453 netif_carrier_on(bp->dev); 9454 } 9455 9456 static char *bnxt_report_fec(struct bnxt_link_info *link_info) 9457 { 9458 u8 active_fec = link_info->active_fec_sig_mode & 9459 PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK; 9460 9461 switch (active_fec) { 9462 default: 9463 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE: 9464 return "None"; 9465 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE: 9466 return "Clause 74 BaseR"; 9467 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE: 9468 return "Clause 91 RS(528,514)"; 9469 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE: 9470 return "Clause 91 RS544_1XN"; 9471 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE: 9472 return "Clause 91 RS(544,514)"; 9473 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE: 9474 return "Clause 91 RS272_1XN"; 9475 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE: 9476 return "Clause 91 RS(272,257)"; 9477 } 9478 } 9479 9480 void bnxt_report_link(struct bnxt *bp) 9481 { 9482 if (BNXT_LINK_IS_UP(bp)) { 9483 const char *signal = ""; 9484 const char *flow_ctrl; 9485 const char *duplex; 9486 u32 speed; 9487 u16 fec; 9488 9489 netif_carrier_on(bp->dev); 9490 speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed); 9491 if (speed == SPEED_UNKNOWN) { 9492 netdev_info(bp->dev, "NIC Link is Up, speed unknown\n"); 9493 return; 9494 } 9495 if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL) 9496 duplex = "full"; 9497 else 9498 duplex = "half"; 9499 if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH) 9500 flow_ctrl = "ON - receive & transmit"; 9501 else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX) 9502 flow_ctrl = "ON - transmit"; 9503 else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX) 9504 flow_ctrl = "ON - receive"; 9505 else 9506 flow_ctrl = "none"; 9507 if (bp->link_info.phy_qcfg_resp.option_flags & 9508 PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) { 9509 u8 sig_mode = bp->link_info.active_fec_sig_mode & 9510 PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; 9511 switch (sig_mode) { 9512 case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ: 9513 signal = "(NRZ) "; 9514 break; 9515 case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4: 9516 signal = "(PAM4) "; 9517 break; 9518 default: 9519 break; 9520 } 9521 } 9522 netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s%s duplex, Flow control: %s\n", 9523 speed, signal, duplex, flow_ctrl); 9524 if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) 9525 netdev_info(bp->dev, "EEE is %s\n", 9526 bp->eee.eee_active ? "active" : 9527 "not active"); 9528 fec = bp->link_info.fec_cfg; 9529 if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED)) 9530 netdev_info(bp->dev, "FEC autoneg %s encoding: %s\n", 9531 (fec & BNXT_FEC_AUTONEG) ? "on" : "off", 9532 bnxt_report_fec(&bp->link_info)); 9533 } else { 9534 netif_carrier_off(bp->dev); 9535 netdev_err(bp->dev, "NIC Link is Down\n"); 9536 } 9537 } 9538 9539 static bool bnxt_phy_qcaps_no_speed(struct hwrm_port_phy_qcaps_output *resp) 9540 { 9541 if (!resp->supported_speeds_auto_mode && 9542 !resp->supported_speeds_force_mode && 9543 !resp->supported_pam4_speeds_auto_mode && 9544 !resp->supported_pam4_speeds_force_mode) 9545 return true; 9546 return false; 9547 } 9548 9549 static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) 9550 { 9551 struct bnxt_link_info *link_info = &bp->link_info; 9552 struct hwrm_port_phy_qcaps_output *resp; 9553 struct hwrm_port_phy_qcaps_input *req; 9554 int rc = 0; 9555 9556 if (bp->hwrm_spec_code < 0x10201) 9557 return 0; 9558 9559 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCAPS); 9560 if (rc) 9561 return rc; 9562 9563 resp = hwrm_req_hold(bp, req); 9564 rc = hwrm_req_send(bp, req); 9565 if (rc) 9566 goto hwrm_phy_qcaps_exit; 9567 9568 bp->phy_flags = resp->flags | (le16_to_cpu(resp->flags2) << 8); 9569 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EEE_SUPPORTED) { 9570 struct ethtool_eee *eee = &bp->eee; 9571 u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode); 9572 9573 eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 9574 bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) & 9575 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK; 9576 bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & 9577 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; 9578 } 9579 9580 if (bp->hwrm_spec_code >= 0x10a01) { 9581 if (bnxt_phy_qcaps_no_speed(resp)) { 9582 link_info->phy_state = BNXT_PHY_STATE_DISABLED; 9583 netdev_warn(bp->dev, "Ethernet link disabled\n"); 9584 } else if (link_info->phy_state == BNXT_PHY_STATE_DISABLED) { 9585 link_info->phy_state = BNXT_PHY_STATE_ENABLED; 9586 netdev_info(bp->dev, "Ethernet link enabled\n"); 9587 /* Phy re-enabled, reprobe the speeds */ 9588 link_info->support_auto_speeds = 0; 9589 link_info->support_pam4_auto_speeds = 0; 9590 } 9591 } 9592 if (resp->supported_speeds_auto_mode) 9593 link_info->support_auto_speeds = 9594 le16_to_cpu(resp->supported_speeds_auto_mode); 9595 if (resp->supported_pam4_speeds_auto_mode) 9596 link_info->support_pam4_auto_speeds = 9597 le16_to_cpu(resp->supported_pam4_speeds_auto_mode); 9598 9599 bp->port_count = resp->port_cnt; 9600 9601 hwrm_phy_qcaps_exit: 9602 hwrm_req_drop(bp, req); 9603 return rc; 9604 } 9605 9606 static bool bnxt_support_dropped(u16 advertising, u16 supported) 9607 { 9608 u16 diff = advertising ^ supported; 9609 9610 return ((supported | diff) != supported); 9611 } 9612 9613 int bnxt_update_link(struct bnxt *bp, bool chng_link_state) 9614 { 9615 struct bnxt_link_info *link_info = &bp->link_info; 9616 struct hwrm_port_phy_qcfg_output *resp; 9617 struct hwrm_port_phy_qcfg_input *req; 9618 u8 link_state = link_info->link_state; 9619 bool support_changed = false; 9620 int rc; 9621 9622 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCFG); 9623 if (rc) 9624 return rc; 9625 9626 resp = hwrm_req_hold(bp, req); 9627 rc = hwrm_req_send(bp, req); 9628 if (rc) { 9629 hwrm_req_drop(bp, req); 9630 if (BNXT_VF(bp) && rc == -ENODEV) { 9631 netdev_warn(bp->dev, "Cannot obtain link state while PF unavailable.\n"); 9632 rc = 0; 9633 } 9634 return rc; 9635 } 9636 9637 memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp)); 9638 link_info->phy_link_status = resp->link; 9639 link_info->duplex = resp->duplex_cfg; 9640 if (bp->hwrm_spec_code >= 0x10800) 9641 link_info->duplex = resp->duplex_state; 9642 link_info->pause = resp->pause; 9643 link_info->auto_mode = resp->auto_mode; 9644 link_info->auto_pause_setting = resp->auto_pause; 9645 link_info->lp_pause = resp->link_partner_adv_pause; 9646 link_info->force_pause_setting = resp->force_pause; 9647 link_info->duplex_setting = resp->duplex_cfg; 9648 if (link_info->phy_link_status == BNXT_LINK_LINK) 9649 link_info->link_speed = le16_to_cpu(resp->link_speed); 9650 else 9651 link_info->link_speed = 0; 9652 link_info->force_link_speed = le16_to_cpu(resp->force_link_speed); 9653 link_info->force_pam4_link_speed = 9654 le16_to_cpu(resp->force_pam4_link_speed); 9655 link_info->support_speeds = le16_to_cpu(resp->support_speeds); 9656 link_info->support_pam4_speeds = le16_to_cpu(resp->support_pam4_speeds); 9657 link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask); 9658 link_info->auto_pam4_link_speeds = 9659 le16_to_cpu(resp->auto_pam4_link_speed_mask); 9660 link_info->lp_auto_link_speeds = 9661 le16_to_cpu(resp->link_partner_adv_speeds); 9662 link_info->lp_auto_pam4_link_speeds = 9663 resp->link_partner_pam4_adv_speeds; 9664 link_info->preemphasis = le32_to_cpu(resp->preemphasis); 9665 link_info->phy_ver[0] = resp->phy_maj; 9666 link_info->phy_ver[1] = resp->phy_min; 9667 link_info->phy_ver[2] = resp->phy_bld; 9668 link_info->media_type = resp->media_type; 9669 link_info->phy_type = resp->phy_type; 9670 link_info->transceiver = resp->xcvr_pkg_type; 9671 link_info->phy_addr = resp->eee_config_phy_addr & 9672 PORT_PHY_QCFG_RESP_PHY_ADDR_MASK; 9673 link_info->module_status = resp->module_status; 9674 9675 if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) { 9676 struct ethtool_eee *eee = &bp->eee; 9677 u16 fw_speeds; 9678 9679 eee->eee_active = 0; 9680 if (resp->eee_config_phy_addr & 9681 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) { 9682 eee->eee_active = 1; 9683 fw_speeds = le16_to_cpu( 9684 resp->link_partner_adv_eee_link_speed_mask); 9685 eee->lp_advertised = 9686 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 9687 } 9688 9689 /* Pull initial EEE config */ 9690 if (!chng_link_state) { 9691 if (resp->eee_config_phy_addr & 9692 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED) 9693 eee->eee_enabled = 1; 9694 9695 fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask); 9696 eee->advertised = 9697 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 9698 9699 if (resp->eee_config_phy_addr & 9700 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) { 9701 __le32 tmr; 9702 9703 eee->tx_lpi_enabled = 1; 9704 tmr = resp->xcvr_identifier_type_tx_lpi_timer; 9705 eee->tx_lpi_timer = le32_to_cpu(tmr) & 9706 PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK; 9707 } 9708 } 9709 } 9710 9711 link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED; 9712 if (bp->hwrm_spec_code >= 0x10504) { 9713 link_info->fec_cfg = le16_to_cpu(resp->fec_cfg); 9714 link_info->active_fec_sig_mode = resp->active_fec_signal_mode; 9715 } 9716 /* TODO: need to add more logic to report VF link */ 9717 if (chng_link_state) { 9718 if (link_info->phy_link_status == BNXT_LINK_LINK) 9719 link_info->link_state = BNXT_LINK_STATE_UP; 9720 else 9721 link_info->link_state = BNXT_LINK_STATE_DOWN; 9722 if (link_state != link_info->link_state) 9723 bnxt_report_link(bp); 9724 } else { 9725 /* always link down if not require to update link state */ 9726 link_info->link_state = BNXT_LINK_STATE_DOWN; 9727 } 9728 hwrm_req_drop(bp, req); 9729 9730 if (!BNXT_PHY_CFG_ABLE(bp)) 9731 return 0; 9732 9733 /* Check if any advertised speeds are no longer supported. The caller 9734 * holds the link_lock mutex, so we can modify link_info settings. 9735 */ 9736 if (bnxt_support_dropped(link_info->advertising, 9737 link_info->support_auto_speeds)) { 9738 link_info->advertising = link_info->support_auto_speeds; 9739 support_changed = true; 9740 } 9741 if (bnxt_support_dropped(link_info->advertising_pam4, 9742 link_info->support_pam4_auto_speeds)) { 9743 link_info->advertising_pam4 = link_info->support_pam4_auto_speeds; 9744 support_changed = true; 9745 } 9746 if (support_changed && (link_info->autoneg & BNXT_AUTONEG_SPEED)) 9747 bnxt_hwrm_set_link_setting(bp, true, false); 9748 return 0; 9749 } 9750 9751 static void bnxt_get_port_module_status(struct bnxt *bp) 9752 { 9753 struct bnxt_link_info *link_info = &bp->link_info; 9754 struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp; 9755 u8 module_status; 9756 9757 if (bnxt_update_link(bp, true)) 9758 return; 9759 9760 module_status = link_info->module_status; 9761 switch (module_status) { 9762 case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX: 9763 case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN: 9764 case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG: 9765 netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n", 9766 bp->pf.port_id); 9767 if (bp->hwrm_spec_code >= 0x10201) { 9768 netdev_warn(bp->dev, "Module part number %s\n", 9769 resp->phy_vendor_partnumber); 9770 } 9771 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX) 9772 netdev_warn(bp->dev, "TX is disabled\n"); 9773 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN) 9774 netdev_warn(bp->dev, "SFP+ module is shutdown\n"); 9775 } 9776 } 9777 9778 static void 9779 bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) 9780 { 9781 if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) { 9782 if (bp->hwrm_spec_code >= 0x10201) 9783 req->auto_pause = 9784 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; 9785 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 9786 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX; 9787 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 9788 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX; 9789 req->enables |= 9790 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 9791 } else { 9792 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 9793 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX; 9794 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 9795 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX; 9796 req->enables |= 9797 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE); 9798 if (bp->hwrm_spec_code >= 0x10201) { 9799 req->auto_pause = req->force_pause; 9800 req->enables |= cpu_to_le32( 9801 PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 9802 } 9803 } 9804 } 9805 9806 static void bnxt_hwrm_set_link_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) 9807 { 9808 if (bp->link_info.autoneg & BNXT_AUTONEG_SPEED) { 9809 req->auto_mode |= PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK; 9810 if (bp->link_info.advertising) { 9811 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK); 9812 req->auto_link_speed_mask = cpu_to_le16(bp->link_info.advertising); 9813 } 9814 if (bp->link_info.advertising_pam4) { 9815 req->enables |= 9816 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAM4_LINK_SPEED_MASK); 9817 req->auto_link_pam4_speed_mask = 9818 cpu_to_le16(bp->link_info.advertising_pam4); 9819 } 9820 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE); 9821 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG); 9822 } else { 9823 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE); 9824 if (bp->link_info.req_signal_mode == BNXT_SIG_MODE_PAM4) { 9825 req->force_pam4_link_speed = cpu_to_le16(bp->link_info.req_link_speed); 9826 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED); 9827 } else { 9828 req->force_link_speed = cpu_to_le16(bp->link_info.req_link_speed); 9829 } 9830 } 9831 9832 /* tell chimp that the setting takes effect immediately */ 9833 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY); 9834 } 9835 9836 int bnxt_hwrm_set_pause(struct bnxt *bp) 9837 { 9838 struct hwrm_port_phy_cfg_input *req; 9839 int rc; 9840 9841 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 9842 if (rc) 9843 return rc; 9844 9845 bnxt_hwrm_set_pause_common(bp, req); 9846 9847 if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) || 9848 bp->link_info.force_link_chng) 9849 bnxt_hwrm_set_link_common(bp, req); 9850 9851 rc = hwrm_req_send(bp, req); 9852 if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) { 9853 /* since changing of pause setting doesn't trigger any link 9854 * change event, the driver needs to update the current pause 9855 * result upon successfully return of the phy_cfg command 9856 */ 9857 bp->link_info.pause = 9858 bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl; 9859 bp->link_info.auto_pause_setting = 0; 9860 if (!bp->link_info.force_link_chng) 9861 bnxt_report_link(bp); 9862 } 9863 bp->link_info.force_link_chng = false; 9864 return rc; 9865 } 9866 9867 static void bnxt_hwrm_set_eee(struct bnxt *bp, 9868 struct hwrm_port_phy_cfg_input *req) 9869 { 9870 struct ethtool_eee *eee = &bp->eee; 9871 9872 if (eee->eee_enabled) { 9873 u16 eee_speeds; 9874 u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE; 9875 9876 if (eee->tx_lpi_enabled) 9877 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE; 9878 else 9879 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE; 9880 9881 req->flags |= cpu_to_le32(flags); 9882 eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised); 9883 req->eee_link_speed_mask = cpu_to_le16(eee_speeds); 9884 req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer); 9885 } else { 9886 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE); 9887 } 9888 } 9889 9890 int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee) 9891 { 9892 struct hwrm_port_phy_cfg_input *req; 9893 int rc; 9894 9895 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 9896 if (rc) 9897 return rc; 9898 9899 if (set_pause) 9900 bnxt_hwrm_set_pause_common(bp, req); 9901 9902 bnxt_hwrm_set_link_common(bp, req); 9903 9904 if (set_eee) 9905 bnxt_hwrm_set_eee(bp, req); 9906 return hwrm_req_send(bp, req); 9907 } 9908 9909 static int bnxt_hwrm_shutdown_link(struct bnxt *bp) 9910 { 9911 struct hwrm_port_phy_cfg_input *req; 9912 int rc; 9913 9914 if (!BNXT_SINGLE_PF(bp)) 9915 return 0; 9916 9917 if (pci_num_vf(bp->pdev) && 9918 !(bp->phy_flags & BNXT_PHY_FL_FW_MANAGED_LKDN)) 9919 return 0; 9920 9921 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 9922 if (rc) 9923 return rc; 9924 9925 req->flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN); 9926 rc = hwrm_req_send(bp, req); 9927 if (!rc) { 9928 mutex_lock(&bp->link_lock); 9929 /* Device is not obliged link down in certain scenarios, even 9930 * when forced. Setting the state unknown is consistent with 9931 * driver startup and will force link state to be reported 9932 * during subsequent open based on PORT_PHY_QCFG. 9933 */ 9934 bp->link_info.link_state = BNXT_LINK_STATE_UNKNOWN; 9935 mutex_unlock(&bp->link_lock); 9936 } 9937 return rc; 9938 } 9939 9940 static int bnxt_fw_reset_via_optee(struct bnxt *bp) 9941 { 9942 #ifdef CONFIG_TEE_BNXT_FW 9943 int rc = tee_bnxt_fw_load(); 9944 9945 if (rc) 9946 netdev_err(bp->dev, "Failed FW reset via OP-TEE, rc=%d\n", rc); 9947 9948 return rc; 9949 #else 9950 netdev_err(bp->dev, "OP-TEE not supported\n"); 9951 return -ENODEV; 9952 #endif 9953 } 9954 9955 static int bnxt_try_recover_fw(struct bnxt *bp) 9956 { 9957 if (bp->fw_health && bp->fw_health->status_reliable) { 9958 int retry = 0, rc; 9959 u32 sts; 9960 9961 do { 9962 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 9963 rc = bnxt_hwrm_poll(bp); 9964 if (!BNXT_FW_IS_BOOTING(sts) && 9965 !BNXT_FW_IS_RECOVERING(sts)) 9966 break; 9967 retry++; 9968 } while (rc == -EBUSY && retry < BNXT_FW_RETRY); 9969 9970 if (!BNXT_FW_IS_HEALTHY(sts)) { 9971 netdev_err(bp->dev, 9972 "Firmware not responding, status: 0x%x\n", 9973 sts); 9974 rc = -ENODEV; 9975 } 9976 if (sts & FW_STATUS_REG_CRASHED_NO_MASTER) { 9977 netdev_warn(bp->dev, "Firmware recover via OP-TEE requested\n"); 9978 return bnxt_fw_reset_via_optee(bp); 9979 } 9980 return rc; 9981 } 9982 9983 return -ENODEV; 9984 } 9985 9986 int bnxt_cancel_reservations(struct bnxt *bp, bool fw_reset) 9987 { 9988 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 9989 int rc; 9990 9991 if (!BNXT_NEW_RM(bp)) 9992 return 0; /* no resource reservations required */ 9993 9994 rc = bnxt_hwrm_func_resc_qcaps(bp, true); 9995 if (rc) 9996 netdev_err(bp->dev, "resc_qcaps failed\n"); 9997 9998 hw_resc->resv_cp_rings = 0; 9999 hw_resc->resv_stat_ctxs = 0; 10000 hw_resc->resv_irqs = 0; 10001 hw_resc->resv_tx_rings = 0; 10002 hw_resc->resv_rx_rings = 0; 10003 hw_resc->resv_hw_ring_grps = 0; 10004 hw_resc->resv_vnics = 0; 10005 if (!fw_reset) { 10006 bp->tx_nr_rings = 0; 10007 bp->rx_nr_rings = 0; 10008 } 10009 10010 return rc; 10011 } 10012 10013 static int bnxt_hwrm_if_change(struct bnxt *bp, bool up) 10014 { 10015 struct hwrm_func_drv_if_change_output *resp; 10016 struct hwrm_func_drv_if_change_input *req; 10017 bool fw_reset = !bp->irq_tbl; 10018 bool resc_reinit = false; 10019 int rc, retry = 0; 10020 u32 flags = 0; 10021 10022 if (!(bp->fw_cap & BNXT_FW_CAP_IF_CHANGE)) 10023 return 0; 10024 10025 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_IF_CHANGE); 10026 if (rc) 10027 return rc; 10028 10029 if (up) 10030 req->flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP); 10031 resp = hwrm_req_hold(bp, req); 10032 10033 hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); 10034 while (retry < BNXT_FW_IF_RETRY) { 10035 rc = hwrm_req_send(bp, req); 10036 if (rc != -EAGAIN) 10037 break; 10038 10039 msleep(50); 10040 retry++; 10041 } 10042 10043 if (rc == -EAGAIN) { 10044 hwrm_req_drop(bp, req); 10045 return rc; 10046 } else if (!rc) { 10047 flags = le32_to_cpu(resp->flags); 10048 } else if (up) { 10049 rc = bnxt_try_recover_fw(bp); 10050 fw_reset = true; 10051 } 10052 hwrm_req_drop(bp, req); 10053 if (rc) 10054 return rc; 10055 10056 if (!up) { 10057 bnxt_inv_fw_health_reg(bp); 10058 return 0; 10059 } 10060 10061 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE) 10062 resc_reinit = true; 10063 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE || 10064 test_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) 10065 fw_reset = true; 10066 else 10067 bnxt_remap_fw_health_regs(bp); 10068 10069 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) { 10070 netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n"); 10071 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 10072 return -ENODEV; 10073 } 10074 if (resc_reinit || fw_reset) { 10075 if (fw_reset) { 10076 set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 10077 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 10078 bnxt_ulp_stop(bp); 10079 bnxt_free_ctx_mem(bp); 10080 kfree(bp->ctx); 10081 bp->ctx = NULL; 10082 bnxt_dcb_free(bp); 10083 rc = bnxt_fw_init_one(bp); 10084 if (rc) { 10085 clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 10086 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 10087 return rc; 10088 } 10089 bnxt_clear_int_mode(bp); 10090 rc = bnxt_init_int_mode(bp); 10091 if (rc) { 10092 clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 10093 netdev_err(bp->dev, "init int mode failed\n"); 10094 return rc; 10095 } 10096 } 10097 rc = bnxt_cancel_reservations(bp, fw_reset); 10098 } 10099 return rc; 10100 } 10101 10102 static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp) 10103 { 10104 struct hwrm_port_led_qcaps_output *resp; 10105 struct hwrm_port_led_qcaps_input *req; 10106 struct bnxt_pf_info *pf = &bp->pf; 10107 int rc; 10108 10109 bp->num_leds = 0; 10110 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601) 10111 return 0; 10112 10113 rc = hwrm_req_init(bp, req, HWRM_PORT_LED_QCAPS); 10114 if (rc) 10115 return rc; 10116 10117 req->port_id = cpu_to_le16(pf->port_id); 10118 resp = hwrm_req_hold(bp, req); 10119 rc = hwrm_req_send(bp, req); 10120 if (rc) { 10121 hwrm_req_drop(bp, req); 10122 return rc; 10123 } 10124 if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) { 10125 int i; 10126 10127 bp->num_leds = resp->num_leds; 10128 memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) * 10129 bp->num_leds); 10130 for (i = 0; i < bp->num_leds; i++) { 10131 struct bnxt_led_info *led = &bp->leds[i]; 10132 __le16 caps = led->led_state_caps; 10133 10134 if (!led->led_group_id || 10135 !BNXT_LED_ALT_BLINK_CAP(caps)) { 10136 bp->num_leds = 0; 10137 break; 10138 } 10139 } 10140 } 10141 hwrm_req_drop(bp, req); 10142 return 0; 10143 } 10144 10145 int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp) 10146 { 10147 struct hwrm_wol_filter_alloc_output *resp; 10148 struct hwrm_wol_filter_alloc_input *req; 10149 int rc; 10150 10151 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_ALLOC); 10152 if (rc) 10153 return rc; 10154 10155 req->port_id = cpu_to_le16(bp->pf.port_id); 10156 req->wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT; 10157 req->enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS); 10158 memcpy(req->mac_address, bp->dev->dev_addr, ETH_ALEN); 10159 10160 resp = hwrm_req_hold(bp, req); 10161 rc = hwrm_req_send(bp, req); 10162 if (!rc) 10163 bp->wol_filter_id = resp->wol_filter_id; 10164 hwrm_req_drop(bp, req); 10165 return rc; 10166 } 10167 10168 int bnxt_hwrm_free_wol_fltr(struct bnxt *bp) 10169 { 10170 struct hwrm_wol_filter_free_input *req; 10171 int rc; 10172 10173 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_FREE); 10174 if (rc) 10175 return rc; 10176 10177 req->port_id = cpu_to_le16(bp->pf.port_id); 10178 req->enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID); 10179 req->wol_filter_id = bp->wol_filter_id; 10180 10181 return hwrm_req_send(bp, req); 10182 } 10183 10184 static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle) 10185 { 10186 struct hwrm_wol_filter_qcfg_output *resp; 10187 struct hwrm_wol_filter_qcfg_input *req; 10188 u16 next_handle = 0; 10189 int rc; 10190 10191 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_QCFG); 10192 if (rc) 10193 return rc; 10194 10195 req->port_id = cpu_to_le16(bp->pf.port_id); 10196 req->handle = cpu_to_le16(handle); 10197 resp = hwrm_req_hold(bp, req); 10198 rc = hwrm_req_send(bp, req); 10199 if (!rc) { 10200 next_handle = le16_to_cpu(resp->next_handle); 10201 if (next_handle != 0) { 10202 if (resp->wol_type == 10203 WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) { 10204 bp->wol = 1; 10205 bp->wol_filter_id = resp->wol_filter_id; 10206 } 10207 } 10208 } 10209 hwrm_req_drop(bp, req); 10210 return next_handle; 10211 } 10212 10213 static void bnxt_get_wol_settings(struct bnxt *bp) 10214 { 10215 u16 handle = 0; 10216 10217 bp->wol = 0; 10218 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP)) 10219 return; 10220 10221 do { 10222 handle = bnxt_hwrm_get_wol_fltrs(bp, handle); 10223 } while (handle && handle != 0xffff); 10224 } 10225 10226 #ifdef CONFIG_BNXT_HWMON 10227 static ssize_t bnxt_show_temp(struct device *dev, 10228 struct device_attribute *devattr, char *buf) 10229 { 10230 struct hwrm_temp_monitor_query_output *resp; 10231 struct hwrm_temp_monitor_query_input *req; 10232 struct bnxt *bp = dev_get_drvdata(dev); 10233 u32 len = 0; 10234 int rc; 10235 10236 rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY); 10237 if (rc) 10238 return rc; 10239 resp = hwrm_req_hold(bp, req); 10240 rc = hwrm_req_send(bp, req); 10241 if (!rc) 10242 len = sprintf(buf, "%u\n", resp->temp * 1000); /* display millidegree */ 10243 hwrm_req_drop(bp, req); 10244 if (rc) 10245 return rc; 10246 return len; 10247 } 10248 static SENSOR_DEVICE_ATTR(temp1_input, 0444, bnxt_show_temp, NULL, 0); 10249 10250 static struct attribute *bnxt_attrs[] = { 10251 &sensor_dev_attr_temp1_input.dev_attr.attr, 10252 NULL 10253 }; 10254 ATTRIBUTE_GROUPS(bnxt); 10255 10256 static void bnxt_hwmon_close(struct bnxt *bp) 10257 { 10258 if (bp->hwmon_dev) { 10259 hwmon_device_unregister(bp->hwmon_dev); 10260 bp->hwmon_dev = NULL; 10261 } 10262 } 10263 10264 static void bnxt_hwmon_open(struct bnxt *bp) 10265 { 10266 struct hwrm_temp_monitor_query_input *req; 10267 struct pci_dev *pdev = bp->pdev; 10268 int rc; 10269 10270 rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY); 10271 if (!rc) 10272 rc = hwrm_req_send_silent(bp, req); 10273 if (rc == -EACCES || rc == -EOPNOTSUPP) { 10274 bnxt_hwmon_close(bp); 10275 return; 10276 } 10277 10278 if (bp->hwmon_dev) 10279 return; 10280 10281 bp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, 10282 DRV_MODULE_NAME, bp, 10283 bnxt_groups); 10284 if (IS_ERR(bp->hwmon_dev)) { 10285 bp->hwmon_dev = NULL; 10286 dev_warn(&pdev->dev, "Cannot register hwmon device\n"); 10287 } 10288 } 10289 #else 10290 static void bnxt_hwmon_close(struct bnxt *bp) 10291 { 10292 } 10293 10294 static void bnxt_hwmon_open(struct bnxt *bp) 10295 { 10296 } 10297 #endif 10298 10299 static bool bnxt_eee_config_ok(struct bnxt *bp) 10300 { 10301 struct ethtool_eee *eee = &bp->eee; 10302 struct bnxt_link_info *link_info = &bp->link_info; 10303 10304 if (!(bp->phy_flags & BNXT_PHY_FL_EEE_CAP)) 10305 return true; 10306 10307 if (eee->eee_enabled) { 10308 u32 advertising = 10309 _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0); 10310 10311 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 10312 eee->eee_enabled = 0; 10313 return false; 10314 } 10315 if (eee->advertised & ~advertising) { 10316 eee->advertised = advertising & eee->supported; 10317 return false; 10318 } 10319 } 10320 return true; 10321 } 10322 10323 static int bnxt_update_phy_setting(struct bnxt *bp) 10324 { 10325 int rc; 10326 bool update_link = false; 10327 bool update_pause = false; 10328 bool update_eee = false; 10329 struct bnxt_link_info *link_info = &bp->link_info; 10330 10331 rc = bnxt_update_link(bp, true); 10332 if (rc) { 10333 netdev_err(bp->dev, "failed to update link (rc: %x)\n", 10334 rc); 10335 return rc; 10336 } 10337 if (!BNXT_SINGLE_PF(bp)) 10338 return 0; 10339 10340 if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 10341 (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) != 10342 link_info->req_flow_ctrl) 10343 update_pause = true; 10344 if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 10345 link_info->force_pause_setting != link_info->req_flow_ctrl) 10346 update_pause = true; 10347 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 10348 if (BNXT_AUTO_MODE(link_info->auto_mode)) 10349 update_link = true; 10350 if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ && 10351 link_info->req_link_speed != link_info->force_link_speed) 10352 update_link = true; 10353 else if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 && 10354 link_info->req_link_speed != link_info->force_pam4_link_speed) 10355 update_link = true; 10356 if (link_info->req_duplex != link_info->duplex_setting) 10357 update_link = true; 10358 } else { 10359 if (link_info->auto_mode == BNXT_LINK_AUTO_NONE) 10360 update_link = true; 10361 if (link_info->advertising != link_info->auto_link_speeds || 10362 link_info->advertising_pam4 != link_info->auto_pam4_link_speeds) 10363 update_link = true; 10364 } 10365 10366 /* The last close may have shutdown the link, so need to call 10367 * PHY_CFG to bring it back up. 10368 */ 10369 if (!BNXT_LINK_IS_UP(bp)) 10370 update_link = true; 10371 10372 if (!bnxt_eee_config_ok(bp)) 10373 update_eee = true; 10374 10375 if (update_link) 10376 rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee); 10377 else if (update_pause) 10378 rc = bnxt_hwrm_set_pause(bp); 10379 if (rc) { 10380 netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n", 10381 rc); 10382 return rc; 10383 } 10384 10385 return rc; 10386 } 10387 10388 /* Common routine to pre-map certain register block to different GRC window. 10389 * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows 10390 * in PF and 3 windows in VF that can be customized to map in different 10391 * register blocks. 10392 */ 10393 static void bnxt_preset_reg_win(struct bnxt *bp) 10394 { 10395 if (BNXT_PF(bp)) { 10396 /* CAG registers map to GRC window #4 */ 10397 writel(BNXT_CAG_REG_BASE, 10398 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12); 10399 } 10400 } 10401 10402 static int bnxt_init_dflt_ring_mode(struct bnxt *bp); 10403 10404 static int bnxt_reinit_after_abort(struct bnxt *bp) 10405 { 10406 int rc; 10407 10408 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 10409 return -EBUSY; 10410 10411 if (bp->dev->reg_state == NETREG_UNREGISTERED) 10412 return -ENODEV; 10413 10414 rc = bnxt_fw_init_one(bp); 10415 if (!rc) { 10416 bnxt_clear_int_mode(bp); 10417 rc = bnxt_init_int_mode(bp); 10418 if (!rc) { 10419 clear_bit(BNXT_STATE_ABORT_ERR, &bp->state); 10420 set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 10421 } 10422 } 10423 return rc; 10424 } 10425 10426 static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 10427 { 10428 int rc = 0; 10429 10430 bnxt_preset_reg_win(bp); 10431 netif_carrier_off(bp->dev); 10432 if (irq_re_init) { 10433 /* Reserve rings now if none were reserved at driver probe. */ 10434 rc = bnxt_init_dflt_ring_mode(bp); 10435 if (rc) { 10436 netdev_err(bp->dev, "Failed to reserve default rings at open\n"); 10437 return rc; 10438 } 10439 } 10440 rc = bnxt_reserve_rings(bp, irq_re_init); 10441 if (rc) 10442 return rc; 10443 if ((bp->flags & BNXT_FLAG_RFS) && 10444 !(bp->flags & BNXT_FLAG_USING_MSIX)) { 10445 /* disable RFS if falling back to INTA */ 10446 bp->dev->hw_features &= ~NETIF_F_NTUPLE; 10447 bp->flags &= ~BNXT_FLAG_RFS; 10448 } 10449 10450 rc = bnxt_alloc_mem(bp, irq_re_init); 10451 if (rc) { 10452 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 10453 goto open_err_free_mem; 10454 } 10455 10456 if (irq_re_init) { 10457 bnxt_init_napi(bp); 10458 rc = bnxt_request_irq(bp); 10459 if (rc) { 10460 netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc); 10461 goto open_err_irq; 10462 } 10463 } 10464 10465 rc = bnxt_init_nic(bp, irq_re_init); 10466 if (rc) { 10467 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 10468 goto open_err_irq; 10469 } 10470 10471 bnxt_enable_napi(bp); 10472 bnxt_debug_dev_init(bp); 10473 10474 if (link_re_init) { 10475 mutex_lock(&bp->link_lock); 10476 rc = bnxt_update_phy_setting(bp); 10477 mutex_unlock(&bp->link_lock); 10478 if (rc) { 10479 netdev_warn(bp->dev, "failed to update phy settings\n"); 10480 if (BNXT_SINGLE_PF(bp)) { 10481 bp->link_info.phy_retry = true; 10482 bp->link_info.phy_retry_expires = 10483 jiffies + 5 * HZ; 10484 } 10485 } 10486 } 10487 10488 if (irq_re_init) 10489 udp_tunnel_nic_reset_ntf(bp->dev); 10490 10491 if (bp->tx_nr_rings_xdp < num_possible_cpus()) { 10492 if (!static_key_enabled(&bnxt_xdp_locking_key)) 10493 static_branch_enable(&bnxt_xdp_locking_key); 10494 } else if (static_key_enabled(&bnxt_xdp_locking_key)) { 10495 static_branch_disable(&bnxt_xdp_locking_key); 10496 } 10497 set_bit(BNXT_STATE_OPEN, &bp->state); 10498 bnxt_enable_int(bp); 10499 /* Enable TX queues */ 10500 bnxt_tx_enable(bp); 10501 mod_timer(&bp->timer, jiffies + bp->current_interval); 10502 /* Poll link status and check for SFP+ module status */ 10503 mutex_lock(&bp->link_lock); 10504 bnxt_get_port_module_status(bp); 10505 mutex_unlock(&bp->link_lock); 10506 10507 /* VF-reps may need to be re-opened after the PF is re-opened */ 10508 if (BNXT_PF(bp)) 10509 bnxt_vf_reps_open(bp); 10510 bnxt_ptp_init_rtc(bp, true); 10511 bnxt_ptp_cfg_tstamp_filters(bp); 10512 return 0; 10513 10514 open_err_irq: 10515 bnxt_del_napi(bp); 10516 10517 open_err_free_mem: 10518 bnxt_free_skbs(bp); 10519 bnxt_free_irq(bp); 10520 bnxt_free_mem(bp, true); 10521 return rc; 10522 } 10523 10524 /* rtnl_lock held */ 10525 int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 10526 { 10527 int rc = 0; 10528 10529 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) 10530 rc = -EIO; 10531 if (!rc) 10532 rc = __bnxt_open_nic(bp, irq_re_init, link_re_init); 10533 if (rc) { 10534 netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc); 10535 dev_close(bp->dev); 10536 } 10537 return rc; 10538 } 10539 10540 /* rtnl_lock held, open the NIC half way by allocating all resources, but 10541 * NAPI, IRQ, and TX are not enabled. This is mainly used for offline 10542 * self tests. 10543 */ 10544 int bnxt_half_open_nic(struct bnxt *bp) 10545 { 10546 int rc = 0; 10547 10548 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 10549 netdev_err(bp->dev, "A previous firmware reset has not completed, aborting half open\n"); 10550 rc = -ENODEV; 10551 goto half_open_err; 10552 } 10553 10554 rc = bnxt_alloc_mem(bp, true); 10555 if (rc) { 10556 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 10557 goto half_open_err; 10558 } 10559 set_bit(BNXT_STATE_HALF_OPEN, &bp->state); 10560 rc = bnxt_init_nic(bp, true); 10561 if (rc) { 10562 clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); 10563 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 10564 goto half_open_err; 10565 } 10566 return 0; 10567 10568 half_open_err: 10569 bnxt_free_skbs(bp); 10570 bnxt_free_mem(bp, true); 10571 dev_close(bp->dev); 10572 return rc; 10573 } 10574 10575 /* rtnl_lock held, this call can only be made after a previous successful 10576 * call to bnxt_half_open_nic(). 10577 */ 10578 void bnxt_half_close_nic(struct bnxt *bp) 10579 { 10580 bnxt_hwrm_resource_free(bp, false, true); 10581 bnxt_free_skbs(bp); 10582 bnxt_free_mem(bp, true); 10583 clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); 10584 } 10585 10586 void bnxt_reenable_sriov(struct bnxt *bp) 10587 { 10588 if (BNXT_PF(bp)) { 10589 struct bnxt_pf_info *pf = &bp->pf; 10590 int n = pf->active_vfs; 10591 10592 if (n) 10593 bnxt_cfg_hw_sriov(bp, &n, true); 10594 } 10595 } 10596 10597 static int bnxt_open(struct net_device *dev) 10598 { 10599 struct bnxt *bp = netdev_priv(dev); 10600 int rc; 10601 10602 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 10603 rc = bnxt_reinit_after_abort(bp); 10604 if (rc) { 10605 if (rc == -EBUSY) 10606 netdev_err(bp->dev, "A previous firmware reset has not completed, aborting\n"); 10607 else 10608 netdev_err(bp->dev, "Failed to reinitialize after aborted firmware reset\n"); 10609 return -ENODEV; 10610 } 10611 } 10612 10613 rc = bnxt_hwrm_if_change(bp, true); 10614 if (rc) 10615 return rc; 10616 10617 rc = __bnxt_open_nic(bp, true, true); 10618 if (rc) { 10619 bnxt_hwrm_if_change(bp, false); 10620 } else { 10621 if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) { 10622 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 10623 bnxt_ulp_start(bp, 0); 10624 bnxt_reenable_sriov(bp); 10625 } 10626 } 10627 bnxt_hwmon_open(bp); 10628 } 10629 10630 return rc; 10631 } 10632 10633 static bool bnxt_drv_busy(struct bnxt *bp) 10634 { 10635 return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) || 10636 test_bit(BNXT_STATE_READ_STATS, &bp->state)); 10637 } 10638 10639 static void bnxt_get_ring_stats(struct bnxt *bp, 10640 struct rtnl_link_stats64 *stats); 10641 10642 static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init, 10643 bool link_re_init) 10644 { 10645 /* Close the VF-reps before closing PF */ 10646 if (BNXT_PF(bp)) 10647 bnxt_vf_reps_close(bp); 10648 10649 /* Change device state to avoid TX queue wake up's */ 10650 bnxt_tx_disable(bp); 10651 10652 clear_bit(BNXT_STATE_OPEN, &bp->state); 10653 smp_mb__after_atomic(); 10654 while (bnxt_drv_busy(bp)) 10655 msleep(20); 10656 10657 /* Flush rings and disable interrupts */ 10658 bnxt_shutdown_nic(bp, irq_re_init); 10659 10660 /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */ 10661 10662 bnxt_debug_dev_exit(bp); 10663 bnxt_disable_napi(bp); 10664 del_timer_sync(&bp->timer); 10665 bnxt_free_skbs(bp); 10666 10667 /* Save ring stats before shutdown */ 10668 if (bp->bnapi && irq_re_init) 10669 bnxt_get_ring_stats(bp, &bp->net_stats_prev); 10670 if (irq_re_init) { 10671 bnxt_free_irq(bp); 10672 bnxt_del_napi(bp); 10673 } 10674 bnxt_free_mem(bp, irq_re_init); 10675 } 10676 10677 int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 10678 { 10679 int rc = 0; 10680 10681 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 10682 /* If we get here, it means firmware reset is in progress 10683 * while we are trying to close. We can safely proceed with 10684 * the close because we are holding rtnl_lock(). Some firmware 10685 * messages may fail as we proceed to close. We set the 10686 * ABORT_ERR flag here so that the FW reset thread will later 10687 * abort when it gets the rtnl_lock() and sees the flag. 10688 */ 10689 netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n"); 10690 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 10691 } 10692 10693 #ifdef CONFIG_BNXT_SRIOV 10694 if (bp->sriov_cfg) { 10695 rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait, 10696 !bp->sriov_cfg, 10697 BNXT_SRIOV_CFG_WAIT_TMO); 10698 if (rc) 10699 netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n"); 10700 } 10701 #endif 10702 __bnxt_close_nic(bp, irq_re_init, link_re_init); 10703 return rc; 10704 } 10705 10706 static int bnxt_close(struct net_device *dev) 10707 { 10708 struct bnxt *bp = netdev_priv(dev); 10709 10710 bnxt_hwmon_close(bp); 10711 bnxt_close_nic(bp, true, true); 10712 bnxt_hwrm_shutdown_link(bp); 10713 bnxt_hwrm_if_change(bp, false); 10714 return 0; 10715 } 10716 10717 static int bnxt_hwrm_port_phy_read(struct bnxt *bp, u16 phy_addr, u16 reg, 10718 u16 *val) 10719 { 10720 struct hwrm_port_phy_mdio_read_output *resp; 10721 struct hwrm_port_phy_mdio_read_input *req; 10722 int rc; 10723 10724 if (bp->hwrm_spec_code < 0x10a00) 10725 return -EOPNOTSUPP; 10726 10727 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_READ); 10728 if (rc) 10729 return rc; 10730 10731 req->port_id = cpu_to_le16(bp->pf.port_id); 10732 req->phy_addr = phy_addr; 10733 req->reg_addr = cpu_to_le16(reg & 0x1f); 10734 if (mdio_phy_id_is_c45(phy_addr)) { 10735 req->cl45_mdio = 1; 10736 req->phy_addr = mdio_phy_id_prtad(phy_addr); 10737 req->dev_addr = mdio_phy_id_devad(phy_addr); 10738 req->reg_addr = cpu_to_le16(reg); 10739 } 10740 10741 resp = hwrm_req_hold(bp, req); 10742 rc = hwrm_req_send(bp, req); 10743 if (!rc) 10744 *val = le16_to_cpu(resp->reg_data); 10745 hwrm_req_drop(bp, req); 10746 return rc; 10747 } 10748 10749 static int bnxt_hwrm_port_phy_write(struct bnxt *bp, u16 phy_addr, u16 reg, 10750 u16 val) 10751 { 10752 struct hwrm_port_phy_mdio_write_input *req; 10753 int rc; 10754 10755 if (bp->hwrm_spec_code < 0x10a00) 10756 return -EOPNOTSUPP; 10757 10758 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_WRITE); 10759 if (rc) 10760 return rc; 10761 10762 req->port_id = cpu_to_le16(bp->pf.port_id); 10763 req->phy_addr = phy_addr; 10764 req->reg_addr = cpu_to_le16(reg & 0x1f); 10765 if (mdio_phy_id_is_c45(phy_addr)) { 10766 req->cl45_mdio = 1; 10767 req->phy_addr = mdio_phy_id_prtad(phy_addr); 10768 req->dev_addr = mdio_phy_id_devad(phy_addr); 10769 req->reg_addr = cpu_to_le16(reg); 10770 } 10771 req->reg_data = cpu_to_le16(val); 10772 10773 return hwrm_req_send(bp, req); 10774 } 10775 10776 /* rtnl_lock held */ 10777 static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 10778 { 10779 struct mii_ioctl_data *mdio = if_mii(ifr); 10780 struct bnxt *bp = netdev_priv(dev); 10781 int rc; 10782 10783 switch (cmd) { 10784 case SIOCGMIIPHY: 10785 mdio->phy_id = bp->link_info.phy_addr; 10786 10787 fallthrough; 10788 case SIOCGMIIREG: { 10789 u16 mii_regval = 0; 10790 10791 if (!netif_running(dev)) 10792 return -EAGAIN; 10793 10794 rc = bnxt_hwrm_port_phy_read(bp, mdio->phy_id, mdio->reg_num, 10795 &mii_regval); 10796 mdio->val_out = mii_regval; 10797 return rc; 10798 } 10799 10800 case SIOCSMIIREG: 10801 if (!netif_running(dev)) 10802 return -EAGAIN; 10803 10804 return bnxt_hwrm_port_phy_write(bp, mdio->phy_id, mdio->reg_num, 10805 mdio->val_in); 10806 10807 case SIOCSHWTSTAMP: 10808 return bnxt_hwtstamp_set(dev, ifr); 10809 10810 case SIOCGHWTSTAMP: 10811 return bnxt_hwtstamp_get(dev, ifr); 10812 10813 default: 10814 /* do nothing */ 10815 break; 10816 } 10817 return -EOPNOTSUPP; 10818 } 10819 10820 static void bnxt_get_ring_stats(struct bnxt *bp, 10821 struct rtnl_link_stats64 *stats) 10822 { 10823 int i; 10824 10825 for (i = 0; i < bp->cp_nr_rings; i++) { 10826 struct bnxt_napi *bnapi = bp->bnapi[i]; 10827 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 10828 u64 *sw = cpr->stats.sw_stats; 10829 10830 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_ucast_pkts); 10831 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); 10832 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_bcast_pkts); 10833 10834 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_ucast_pkts); 10835 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_mcast_pkts); 10836 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_bcast_pkts); 10837 10838 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_ucast_bytes); 10839 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes); 10840 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes); 10841 10842 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_ucast_bytes); 10843 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_mcast_bytes); 10844 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_bcast_bytes); 10845 10846 stats->rx_missed_errors += 10847 BNXT_GET_RING_STATS64(sw, rx_discard_pkts); 10848 10849 stats->multicast += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); 10850 10851 stats->tx_dropped += BNXT_GET_RING_STATS64(sw, tx_error_pkts); 10852 10853 stats->rx_dropped += 10854 cpr->sw_stats.rx.rx_netpoll_discards + 10855 cpr->sw_stats.rx.rx_oom_discards; 10856 } 10857 } 10858 10859 static void bnxt_add_prev_stats(struct bnxt *bp, 10860 struct rtnl_link_stats64 *stats) 10861 { 10862 struct rtnl_link_stats64 *prev_stats = &bp->net_stats_prev; 10863 10864 stats->rx_packets += prev_stats->rx_packets; 10865 stats->tx_packets += prev_stats->tx_packets; 10866 stats->rx_bytes += prev_stats->rx_bytes; 10867 stats->tx_bytes += prev_stats->tx_bytes; 10868 stats->rx_missed_errors += prev_stats->rx_missed_errors; 10869 stats->multicast += prev_stats->multicast; 10870 stats->rx_dropped += prev_stats->rx_dropped; 10871 stats->tx_dropped += prev_stats->tx_dropped; 10872 } 10873 10874 static void 10875 bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 10876 { 10877 struct bnxt *bp = netdev_priv(dev); 10878 10879 set_bit(BNXT_STATE_READ_STATS, &bp->state); 10880 /* Make sure bnxt_close_nic() sees that we are reading stats before 10881 * we check the BNXT_STATE_OPEN flag. 10882 */ 10883 smp_mb__after_atomic(); 10884 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 10885 clear_bit(BNXT_STATE_READ_STATS, &bp->state); 10886 *stats = bp->net_stats_prev; 10887 return; 10888 } 10889 10890 bnxt_get_ring_stats(bp, stats); 10891 bnxt_add_prev_stats(bp, stats); 10892 10893 if (bp->flags & BNXT_FLAG_PORT_STATS) { 10894 u64 *rx = bp->port_stats.sw_stats; 10895 u64 *tx = bp->port_stats.sw_stats + 10896 BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 10897 10898 stats->rx_crc_errors = 10899 BNXT_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames); 10900 stats->rx_frame_errors = 10901 BNXT_GET_RX_PORT_STATS64(rx, rx_align_err_frames); 10902 stats->rx_length_errors = 10903 BNXT_GET_RX_PORT_STATS64(rx, rx_undrsz_frames) + 10904 BNXT_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames) + 10905 BNXT_GET_RX_PORT_STATS64(rx, rx_runt_frames); 10906 stats->rx_errors = 10907 BNXT_GET_RX_PORT_STATS64(rx, rx_false_carrier_frames) + 10908 BNXT_GET_RX_PORT_STATS64(rx, rx_jbr_frames); 10909 stats->collisions = 10910 BNXT_GET_TX_PORT_STATS64(tx, tx_total_collisions); 10911 stats->tx_fifo_errors = 10912 BNXT_GET_TX_PORT_STATS64(tx, tx_fifo_underruns); 10913 stats->tx_errors = BNXT_GET_TX_PORT_STATS64(tx, tx_err); 10914 } 10915 clear_bit(BNXT_STATE_READ_STATS, &bp->state); 10916 } 10917 10918 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask) 10919 { 10920 struct net_device *dev = bp->dev; 10921 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 10922 struct netdev_hw_addr *ha; 10923 u8 *haddr; 10924 int mc_count = 0; 10925 bool update = false; 10926 int off = 0; 10927 10928 netdev_for_each_mc_addr(ha, dev) { 10929 if (mc_count >= BNXT_MAX_MC_ADDRS) { 10930 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 10931 vnic->mc_list_count = 0; 10932 return false; 10933 } 10934 haddr = ha->addr; 10935 if (!ether_addr_equal(haddr, vnic->mc_list + off)) { 10936 memcpy(vnic->mc_list + off, haddr, ETH_ALEN); 10937 update = true; 10938 } 10939 off += ETH_ALEN; 10940 mc_count++; 10941 } 10942 if (mc_count) 10943 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; 10944 10945 if (mc_count != vnic->mc_list_count) { 10946 vnic->mc_list_count = mc_count; 10947 update = true; 10948 } 10949 return update; 10950 } 10951 10952 static bool bnxt_uc_list_updated(struct bnxt *bp) 10953 { 10954 struct net_device *dev = bp->dev; 10955 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 10956 struct netdev_hw_addr *ha; 10957 int off = 0; 10958 10959 if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1)) 10960 return true; 10961 10962 netdev_for_each_uc_addr(ha, dev) { 10963 if (!ether_addr_equal(ha->addr, vnic->uc_list + off)) 10964 return true; 10965 10966 off += ETH_ALEN; 10967 } 10968 return false; 10969 } 10970 10971 static void bnxt_set_rx_mode(struct net_device *dev) 10972 { 10973 struct bnxt *bp = netdev_priv(dev); 10974 struct bnxt_vnic_info *vnic; 10975 bool mc_update = false; 10976 bool uc_update; 10977 u32 mask; 10978 10979 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) 10980 return; 10981 10982 vnic = &bp->vnic_info[0]; 10983 mask = vnic->rx_mask; 10984 mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS | 10985 CFA_L2_SET_RX_MASK_REQ_MASK_MCAST | 10986 CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST | 10987 CFA_L2_SET_RX_MASK_REQ_MASK_BCAST); 10988 10989 if (dev->flags & IFF_PROMISC) 10990 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 10991 10992 uc_update = bnxt_uc_list_updated(bp); 10993 10994 if (dev->flags & IFF_BROADCAST) 10995 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; 10996 if (dev->flags & IFF_ALLMULTI) { 10997 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 10998 vnic->mc_list_count = 0; 10999 } else if (dev->flags & IFF_MULTICAST) { 11000 mc_update = bnxt_mc_list_updated(bp, &mask); 11001 } 11002 11003 if (mask != vnic->rx_mask || uc_update || mc_update) { 11004 vnic->rx_mask = mask; 11005 11006 set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); 11007 bnxt_queue_sp_work(bp); 11008 } 11009 } 11010 11011 static int bnxt_cfg_rx_mode(struct bnxt *bp) 11012 { 11013 struct net_device *dev = bp->dev; 11014 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 11015 struct hwrm_cfa_l2_filter_free_input *req; 11016 struct netdev_hw_addr *ha; 11017 int i, off = 0, rc; 11018 bool uc_update; 11019 11020 netif_addr_lock_bh(dev); 11021 uc_update = bnxt_uc_list_updated(bp); 11022 netif_addr_unlock_bh(dev); 11023 11024 if (!uc_update) 11025 goto skip_uc; 11026 11027 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE); 11028 if (rc) 11029 return rc; 11030 hwrm_req_hold(bp, req); 11031 for (i = 1; i < vnic->uc_filter_count; i++) { 11032 req->l2_filter_id = vnic->fw_l2_filter_id[i]; 11033 11034 rc = hwrm_req_send(bp, req); 11035 } 11036 hwrm_req_drop(bp, req); 11037 11038 vnic->uc_filter_count = 1; 11039 11040 netif_addr_lock_bh(dev); 11041 if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) { 11042 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 11043 } else { 11044 netdev_for_each_uc_addr(ha, dev) { 11045 memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN); 11046 off += ETH_ALEN; 11047 vnic->uc_filter_count++; 11048 } 11049 } 11050 netif_addr_unlock_bh(dev); 11051 11052 for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) { 11053 rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off); 11054 if (rc) { 11055 if (BNXT_VF(bp) && rc == -ENODEV) { 11056 if (!test_and_set_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) 11057 netdev_warn(bp->dev, "Cannot configure L2 filters while PF is unavailable, will retry\n"); 11058 else 11059 netdev_dbg(bp->dev, "PF still unavailable while configuring L2 filters.\n"); 11060 rc = 0; 11061 } else { 11062 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); 11063 } 11064 vnic->uc_filter_count = i; 11065 return rc; 11066 } 11067 } 11068 if (test_and_clear_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) 11069 netdev_notice(bp->dev, "Retry of L2 filter configuration successful.\n"); 11070 11071 skip_uc: 11072 if ((vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS) && 11073 !bnxt_promisc_ok(bp)) 11074 vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 11075 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); 11076 if (rc && (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST)) { 11077 netdev_info(bp->dev, "Failed setting MC filters rc: %d, turning on ALL_MCAST mode\n", 11078 rc); 11079 vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; 11080 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 11081 vnic->mc_list_count = 0; 11082 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); 11083 } 11084 if (rc) 11085 netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %d\n", 11086 rc); 11087 11088 return rc; 11089 } 11090 11091 static bool bnxt_can_reserve_rings(struct bnxt *bp) 11092 { 11093 #ifdef CONFIG_BNXT_SRIOV 11094 if (BNXT_NEW_RM(bp) && BNXT_VF(bp)) { 11095 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 11096 11097 /* No minimum rings were provisioned by the PF. Don't 11098 * reserve rings by default when device is down. 11099 */ 11100 if (hw_resc->min_tx_rings || hw_resc->resv_tx_rings) 11101 return true; 11102 11103 if (!netif_running(bp->dev)) 11104 return false; 11105 } 11106 #endif 11107 return true; 11108 } 11109 11110 /* If the chip and firmware supports RFS */ 11111 static bool bnxt_rfs_supported(struct bnxt *bp) 11112 { 11113 if (bp->flags & BNXT_FLAG_CHIP_P5) { 11114 if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) 11115 return true; 11116 return false; 11117 } 11118 /* 212 firmware is broken for aRFS */ 11119 if (BNXT_FW_MAJ(bp) == 212) 11120 return false; 11121 if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) 11122 return true; 11123 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 11124 return true; 11125 return false; 11126 } 11127 11128 /* If runtime conditions support RFS */ 11129 static bool bnxt_rfs_capable(struct bnxt *bp) 11130 { 11131 #ifdef CONFIG_RFS_ACCEL 11132 int vnics, max_vnics, max_rss_ctxs; 11133 11134 if (bp->flags & BNXT_FLAG_CHIP_P5) 11135 return bnxt_rfs_supported(bp); 11136 if (!(bp->flags & BNXT_FLAG_MSIX_CAP) || !bnxt_can_reserve_rings(bp) || !bp->rx_nr_rings) 11137 return false; 11138 11139 vnics = 1 + bp->rx_nr_rings; 11140 max_vnics = bnxt_get_max_func_vnics(bp); 11141 max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp); 11142 11143 /* RSS contexts not a limiting factor */ 11144 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 11145 max_rss_ctxs = max_vnics; 11146 if (vnics > max_vnics || vnics > max_rss_ctxs) { 11147 if (bp->rx_nr_rings > 1) 11148 netdev_warn(bp->dev, 11149 "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n", 11150 min(max_rss_ctxs - 1, max_vnics - 1)); 11151 return false; 11152 } 11153 11154 if (!BNXT_NEW_RM(bp)) 11155 return true; 11156 11157 if (vnics == bp->hw_resc.resv_vnics) 11158 return true; 11159 11160 bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, vnics); 11161 if (vnics <= bp->hw_resc.resv_vnics) 11162 return true; 11163 11164 netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n"); 11165 bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, 1); 11166 return false; 11167 #else 11168 return false; 11169 #endif 11170 } 11171 11172 static netdev_features_t bnxt_fix_features(struct net_device *dev, 11173 netdev_features_t features) 11174 { 11175 struct bnxt *bp = netdev_priv(dev); 11176 netdev_features_t vlan_features; 11177 11178 if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp)) 11179 features &= ~NETIF_F_NTUPLE; 11180 11181 if ((bp->flags & BNXT_FLAG_NO_AGG_RINGS) || bp->xdp_prog) 11182 features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 11183 11184 if (!(features & NETIF_F_GRO)) 11185 features &= ~NETIF_F_GRO_HW; 11186 11187 if (features & NETIF_F_GRO_HW) 11188 features &= ~NETIF_F_LRO; 11189 11190 /* Both CTAG and STAG VLAN accelaration on the RX side have to be 11191 * turned on or off together. 11192 */ 11193 vlan_features = features & BNXT_HW_FEATURE_VLAN_ALL_RX; 11194 if (vlan_features != BNXT_HW_FEATURE_VLAN_ALL_RX) { 11195 if (dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX) 11196 features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; 11197 else if (vlan_features) 11198 features |= BNXT_HW_FEATURE_VLAN_ALL_RX; 11199 } 11200 #ifdef CONFIG_BNXT_SRIOV 11201 if (BNXT_VF(bp) && bp->vf.vlan) 11202 features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; 11203 #endif 11204 return features; 11205 } 11206 11207 static int bnxt_set_features(struct net_device *dev, netdev_features_t features) 11208 { 11209 struct bnxt *bp = netdev_priv(dev); 11210 u32 flags = bp->flags; 11211 u32 changes; 11212 int rc = 0; 11213 bool re_init = false; 11214 bool update_tpa = false; 11215 11216 flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS; 11217 if (features & NETIF_F_GRO_HW) 11218 flags |= BNXT_FLAG_GRO; 11219 else if (features & NETIF_F_LRO) 11220 flags |= BNXT_FLAG_LRO; 11221 11222 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 11223 flags &= ~BNXT_FLAG_TPA; 11224 11225 if (features & BNXT_HW_FEATURE_VLAN_ALL_RX) 11226 flags |= BNXT_FLAG_STRIP_VLAN; 11227 11228 if (features & NETIF_F_NTUPLE) 11229 flags |= BNXT_FLAG_RFS; 11230 11231 changes = flags ^ bp->flags; 11232 if (changes & BNXT_FLAG_TPA) { 11233 update_tpa = true; 11234 if ((bp->flags & BNXT_FLAG_TPA) == 0 || 11235 (flags & BNXT_FLAG_TPA) == 0 || 11236 (bp->flags & BNXT_FLAG_CHIP_P5)) 11237 re_init = true; 11238 } 11239 11240 if (changes & ~BNXT_FLAG_TPA) 11241 re_init = true; 11242 11243 if (flags != bp->flags) { 11244 u32 old_flags = bp->flags; 11245 11246 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 11247 bp->flags = flags; 11248 if (update_tpa) 11249 bnxt_set_ring_params(bp); 11250 return rc; 11251 } 11252 11253 if (re_init) { 11254 bnxt_close_nic(bp, false, false); 11255 bp->flags = flags; 11256 if (update_tpa) 11257 bnxt_set_ring_params(bp); 11258 11259 return bnxt_open_nic(bp, false, false); 11260 } 11261 if (update_tpa) { 11262 bp->flags = flags; 11263 rc = bnxt_set_tpa(bp, 11264 (flags & BNXT_FLAG_TPA) ? 11265 true : false); 11266 if (rc) 11267 bp->flags = old_flags; 11268 } 11269 } 11270 return rc; 11271 } 11272 11273 static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off, 11274 u8 **nextp) 11275 { 11276 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off); 11277 int hdr_count = 0; 11278 u8 *nexthdr; 11279 int start; 11280 11281 /* Check that there are at most 2 IPv6 extension headers, no 11282 * fragment header, and each is <= 64 bytes. 11283 */ 11284 start = nw_off + sizeof(*ip6h); 11285 nexthdr = &ip6h->nexthdr; 11286 while (ipv6_ext_hdr(*nexthdr)) { 11287 struct ipv6_opt_hdr *hp; 11288 int hdrlen; 11289 11290 if (hdr_count >= 3 || *nexthdr == NEXTHDR_NONE || 11291 *nexthdr == NEXTHDR_FRAGMENT) 11292 return false; 11293 hp = __skb_header_pointer(NULL, start, sizeof(*hp), skb->data, 11294 skb_headlen(skb), NULL); 11295 if (!hp) 11296 return false; 11297 if (*nexthdr == NEXTHDR_AUTH) 11298 hdrlen = ipv6_authlen(hp); 11299 else 11300 hdrlen = ipv6_optlen(hp); 11301 11302 if (hdrlen > 64) 11303 return false; 11304 nexthdr = &hp->nexthdr; 11305 start += hdrlen; 11306 hdr_count++; 11307 } 11308 if (nextp) { 11309 /* Caller will check inner protocol */ 11310 if (skb->encapsulation) { 11311 *nextp = nexthdr; 11312 return true; 11313 } 11314 *nextp = NULL; 11315 } 11316 /* Only support TCP/UDP for non-tunneled ipv6 and inner ipv6 */ 11317 return *nexthdr == IPPROTO_TCP || *nexthdr == IPPROTO_UDP; 11318 } 11319 11320 /* For UDP, we can only handle 1 Vxlan port and 1 Geneve port. */ 11321 static bool bnxt_udp_tunl_check(struct bnxt *bp, struct sk_buff *skb) 11322 { 11323 struct udphdr *uh = udp_hdr(skb); 11324 __be16 udp_port = uh->dest; 11325 11326 if (udp_port != bp->vxlan_port && udp_port != bp->nge_port) 11327 return false; 11328 if (skb->inner_protocol_type == ENCAP_TYPE_ETHER) { 11329 struct ethhdr *eh = inner_eth_hdr(skb); 11330 11331 switch (eh->h_proto) { 11332 case htons(ETH_P_IP): 11333 return true; 11334 case htons(ETH_P_IPV6): 11335 return bnxt_exthdr_check(bp, skb, 11336 skb_inner_network_offset(skb), 11337 NULL); 11338 } 11339 } 11340 return false; 11341 } 11342 11343 static bool bnxt_tunl_check(struct bnxt *bp, struct sk_buff *skb, u8 l4_proto) 11344 { 11345 switch (l4_proto) { 11346 case IPPROTO_UDP: 11347 return bnxt_udp_tunl_check(bp, skb); 11348 case IPPROTO_IPIP: 11349 return true; 11350 case IPPROTO_GRE: { 11351 switch (skb->inner_protocol) { 11352 default: 11353 return false; 11354 case htons(ETH_P_IP): 11355 return true; 11356 case htons(ETH_P_IPV6): 11357 fallthrough; 11358 } 11359 } 11360 case IPPROTO_IPV6: 11361 /* Check ext headers of inner ipv6 */ 11362 return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb), 11363 NULL); 11364 } 11365 return false; 11366 } 11367 11368 static netdev_features_t bnxt_features_check(struct sk_buff *skb, 11369 struct net_device *dev, 11370 netdev_features_t features) 11371 { 11372 struct bnxt *bp = netdev_priv(dev); 11373 u8 *l4_proto; 11374 11375 features = vlan_features_check(skb, features); 11376 switch (vlan_get_protocol(skb)) { 11377 case htons(ETH_P_IP): 11378 if (!skb->encapsulation) 11379 return features; 11380 l4_proto = &ip_hdr(skb)->protocol; 11381 if (bnxt_tunl_check(bp, skb, *l4_proto)) 11382 return features; 11383 break; 11384 case htons(ETH_P_IPV6): 11385 if (!bnxt_exthdr_check(bp, skb, skb_network_offset(skb), 11386 &l4_proto)) 11387 break; 11388 if (!l4_proto || bnxt_tunl_check(bp, skb, *l4_proto)) 11389 return features; 11390 break; 11391 } 11392 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); 11393 } 11394 11395 int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, 11396 u32 *reg_buf) 11397 { 11398 struct hwrm_dbg_read_direct_output *resp; 11399 struct hwrm_dbg_read_direct_input *req; 11400 __le32 *dbg_reg_buf; 11401 dma_addr_t mapping; 11402 int rc, i; 11403 11404 rc = hwrm_req_init(bp, req, HWRM_DBG_READ_DIRECT); 11405 if (rc) 11406 return rc; 11407 11408 dbg_reg_buf = hwrm_req_dma_slice(bp, req, num_words * 4, 11409 &mapping); 11410 if (!dbg_reg_buf) { 11411 rc = -ENOMEM; 11412 goto dbg_rd_reg_exit; 11413 } 11414 11415 req->host_dest_addr = cpu_to_le64(mapping); 11416 11417 resp = hwrm_req_hold(bp, req); 11418 req->read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR); 11419 req->read_len32 = cpu_to_le32(num_words); 11420 11421 rc = hwrm_req_send(bp, req); 11422 if (rc || resp->error_code) { 11423 rc = -EIO; 11424 goto dbg_rd_reg_exit; 11425 } 11426 for (i = 0; i < num_words; i++) 11427 reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]); 11428 11429 dbg_rd_reg_exit: 11430 hwrm_req_drop(bp, req); 11431 return rc; 11432 } 11433 11434 static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type, 11435 u32 ring_id, u32 *prod, u32 *cons) 11436 { 11437 struct hwrm_dbg_ring_info_get_output *resp; 11438 struct hwrm_dbg_ring_info_get_input *req; 11439 int rc; 11440 11441 rc = hwrm_req_init(bp, req, HWRM_DBG_RING_INFO_GET); 11442 if (rc) 11443 return rc; 11444 11445 req->ring_type = ring_type; 11446 req->fw_ring_id = cpu_to_le32(ring_id); 11447 resp = hwrm_req_hold(bp, req); 11448 rc = hwrm_req_send(bp, req); 11449 if (!rc) { 11450 *prod = le32_to_cpu(resp->producer_index); 11451 *cons = le32_to_cpu(resp->consumer_index); 11452 } 11453 hwrm_req_drop(bp, req); 11454 return rc; 11455 } 11456 11457 static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi) 11458 { 11459 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 11460 int i = bnapi->index; 11461 11462 if (!txr) 11463 return; 11464 11465 netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n", 11466 i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod, 11467 txr->tx_cons); 11468 } 11469 11470 static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi) 11471 { 11472 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 11473 int i = bnapi->index; 11474 11475 if (!rxr) 11476 return; 11477 11478 netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n", 11479 i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod, 11480 rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod, 11481 rxr->rx_sw_agg_prod); 11482 } 11483 11484 static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi) 11485 { 11486 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 11487 int i = bnapi->index; 11488 11489 netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n", 11490 i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons); 11491 } 11492 11493 static void bnxt_dbg_dump_states(struct bnxt *bp) 11494 { 11495 int i; 11496 struct bnxt_napi *bnapi; 11497 11498 for (i = 0; i < bp->cp_nr_rings; i++) { 11499 bnapi = bp->bnapi[i]; 11500 if (netif_msg_drv(bp)) { 11501 bnxt_dump_tx_sw_state(bnapi); 11502 bnxt_dump_rx_sw_state(bnapi); 11503 bnxt_dump_cp_sw_state(bnapi); 11504 } 11505 } 11506 } 11507 11508 static int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int ring_nr) 11509 { 11510 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; 11511 struct hwrm_ring_reset_input *req; 11512 struct bnxt_napi *bnapi = rxr->bnapi; 11513 struct bnxt_cp_ring_info *cpr; 11514 u16 cp_ring_id; 11515 int rc; 11516 11517 rc = hwrm_req_init(bp, req, HWRM_RING_RESET); 11518 if (rc) 11519 return rc; 11520 11521 cpr = &bnapi->cp_ring; 11522 cp_ring_id = cpr->cp_ring_struct.fw_ring_id; 11523 req->cmpl_ring = cpu_to_le16(cp_ring_id); 11524 req->ring_type = RING_RESET_REQ_RING_TYPE_RX_RING_GRP; 11525 req->ring_id = cpu_to_le16(bp->grp_info[bnapi->index].fw_grp_id); 11526 return hwrm_req_send_silent(bp, req); 11527 } 11528 11529 static void bnxt_reset_task(struct bnxt *bp, bool silent) 11530 { 11531 if (!silent) 11532 bnxt_dbg_dump_states(bp); 11533 if (netif_running(bp->dev)) { 11534 int rc; 11535 11536 if (silent) { 11537 bnxt_close_nic(bp, false, false); 11538 bnxt_open_nic(bp, false, false); 11539 } else { 11540 bnxt_ulp_stop(bp); 11541 bnxt_close_nic(bp, true, false); 11542 rc = bnxt_open_nic(bp, true, false); 11543 bnxt_ulp_start(bp, rc); 11544 } 11545 } 11546 } 11547 11548 static void bnxt_tx_timeout(struct net_device *dev, unsigned int txqueue) 11549 { 11550 struct bnxt *bp = netdev_priv(dev); 11551 11552 netdev_err(bp->dev, "TX timeout detected, starting reset task!\n"); 11553 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); 11554 bnxt_queue_sp_work(bp); 11555 } 11556 11557 static void bnxt_fw_health_check(struct bnxt *bp) 11558 { 11559 struct bnxt_fw_health *fw_health = bp->fw_health; 11560 u32 val; 11561 11562 if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 11563 return; 11564 11565 /* Make sure it is enabled before checking the tmr_counter. */ 11566 smp_rmb(); 11567 if (fw_health->tmr_counter) { 11568 fw_health->tmr_counter--; 11569 return; 11570 } 11571 11572 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 11573 if (val == fw_health->last_fw_heartbeat) { 11574 fw_health->arrests++; 11575 goto fw_reset; 11576 } 11577 11578 fw_health->last_fw_heartbeat = val; 11579 11580 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 11581 if (val != fw_health->last_fw_reset_cnt) { 11582 fw_health->discoveries++; 11583 goto fw_reset; 11584 } 11585 11586 fw_health->tmr_counter = fw_health->tmr_multiplier; 11587 return; 11588 11589 fw_reset: 11590 set_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event); 11591 bnxt_queue_sp_work(bp); 11592 } 11593 11594 static void bnxt_timer(struct timer_list *t) 11595 { 11596 struct bnxt *bp = from_timer(bp, t, timer); 11597 struct net_device *dev = bp->dev; 11598 11599 if (!netif_running(dev) || !test_bit(BNXT_STATE_OPEN, &bp->state)) 11600 return; 11601 11602 if (atomic_read(&bp->intr_sem) != 0) 11603 goto bnxt_restart_timer; 11604 11605 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 11606 bnxt_fw_health_check(bp); 11607 11608 if (BNXT_LINK_IS_UP(bp) && bp->stats_coal_ticks) { 11609 set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event); 11610 bnxt_queue_sp_work(bp); 11611 } 11612 11613 if (bnxt_tc_flower_enabled(bp)) { 11614 set_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event); 11615 bnxt_queue_sp_work(bp); 11616 } 11617 11618 #ifdef CONFIG_RFS_ACCEL 11619 if ((bp->flags & BNXT_FLAG_RFS) && bp->ntp_fltr_count) { 11620 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); 11621 bnxt_queue_sp_work(bp); 11622 } 11623 #endif /*CONFIG_RFS_ACCEL*/ 11624 11625 if (bp->link_info.phy_retry) { 11626 if (time_after(jiffies, bp->link_info.phy_retry_expires)) { 11627 bp->link_info.phy_retry = false; 11628 netdev_warn(bp->dev, "failed to update phy settings after maximum retries.\n"); 11629 } else { 11630 set_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event); 11631 bnxt_queue_sp_work(bp); 11632 } 11633 } 11634 11635 if (test_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) { 11636 set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); 11637 bnxt_queue_sp_work(bp); 11638 } 11639 11640 if ((bp->flags & BNXT_FLAG_CHIP_P5) && !bp->chip_rev && 11641 netif_carrier_ok(dev)) { 11642 set_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event); 11643 bnxt_queue_sp_work(bp); 11644 } 11645 bnxt_restart_timer: 11646 mod_timer(&bp->timer, jiffies + bp->current_interval); 11647 } 11648 11649 static void bnxt_rtnl_lock_sp(struct bnxt *bp) 11650 { 11651 /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK 11652 * set. If the device is being closed, bnxt_close() may be holding 11653 * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we 11654 * must clear BNXT_STATE_IN_SP_TASK before holding rtnl(). 11655 */ 11656 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 11657 rtnl_lock(); 11658 } 11659 11660 static void bnxt_rtnl_unlock_sp(struct bnxt *bp) 11661 { 11662 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 11663 rtnl_unlock(); 11664 } 11665 11666 /* Only called from bnxt_sp_task() */ 11667 static void bnxt_reset(struct bnxt *bp, bool silent) 11668 { 11669 bnxt_rtnl_lock_sp(bp); 11670 if (test_bit(BNXT_STATE_OPEN, &bp->state)) 11671 bnxt_reset_task(bp, silent); 11672 bnxt_rtnl_unlock_sp(bp); 11673 } 11674 11675 /* Only called from bnxt_sp_task() */ 11676 static void bnxt_rx_ring_reset(struct bnxt *bp) 11677 { 11678 int i; 11679 11680 bnxt_rtnl_lock_sp(bp); 11681 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 11682 bnxt_rtnl_unlock_sp(bp); 11683 return; 11684 } 11685 /* Disable and flush TPA before resetting the RX ring */ 11686 if (bp->flags & BNXT_FLAG_TPA) 11687 bnxt_set_tpa(bp, false); 11688 for (i = 0; i < bp->rx_nr_rings; i++) { 11689 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 11690 struct bnxt_cp_ring_info *cpr; 11691 int rc; 11692 11693 if (!rxr->bnapi->in_reset) 11694 continue; 11695 11696 rc = bnxt_hwrm_rx_ring_reset(bp, i); 11697 if (rc) { 11698 if (rc == -EINVAL || rc == -EOPNOTSUPP) 11699 netdev_info_once(bp->dev, "RX ring reset not supported by firmware, falling back to global reset\n"); 11700 else 11701 netdev_warn(bp->dev, "RX ring reset failed, rc = %d, falling back to global reset\n", 11702 rc); 11703 bnxt_reset_task(bp, true); 11704 break; 11705 } 11706 bnxt_free_one_rx_ring_skbs(bp, i); 11707 rxr->rx_prod = 0; 11708 rxr->rx_agg_prod = 0; 11709 rxr->rx_sw_agg_prod = 0; 11710 rxr->rx_next_cons = 0; 11711 rxr->bnapi->in_reset = false; 11712 bnxt_alloc_one_rx_ring(bp, i); 11713 cpr = &rxr->bnapi->cp_ring; 11714 cpr->sw_stats.rx.rx_resets++; 11715 if (bp->flags & BNXT_FLAG_AGG_RINGS) 11716 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 11717 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 11718 } 11719 if (bp->flags & BNXT_FLAG_TPA) 11720 bnxt_set_tpa(bp, true); 11721 bnxt_rtnl_unlock_sp(bp); 11722 } 11723 11724 static void bnxt_fw_reset_close(struct bnxt *bp) 11725 { 11726 bnxt_ulp_stop(bp); 11727 /* When firmware is in fatal state, quiesce device and disable 11728 * bus master to prevent any potential bad DMAs before freeing 11729 * kernel memory. 11730 */ 11731 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) { 11732 u16 val = 0; 11733 11734 pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); 11735 if (val == 0xffff) 11736 bp->fw_reset_min_dsecs = 0; 11737 bnxt_tx_disable(bp); 11738 bnxt_disable_napi(bp); 11739 bnxt_disable_int_sync(bp); 11740 bnxt_free_irq(bp); 11741 bnxt_clear_int_mode(bp); 11742 pci_disable_device(bp->pdev); 11743 } 11744 __bnxt_close_nic(bp, true, false); 11745 bnxt_vf_reps_free(bp); 11746 bnxt_clear_int_mode(bp); 11747 bnxt_hwrm_func_drv_unrgtr(bp); 11748 if (pci_is_enabled(bp->pdev)) 11749 pci_disable_device(bp->pdev); 11750 bnxt_free_ctx_mem(bp); 11751 kfree(bp->ctx); 11752 bp->ctx = NULL; 11753 } 11754 11755 static bool is_bnxt_fw_ok(struct bnxt *bp) 11756 { 11757 struct bnxt_fw_health *fw_health = bp->fw_health; 11758 bool no_heartbeat = false, has_reset = false; 11759 u32 val; 11760 11761 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 11762 if (val == fw_health->last_fw_heartbeat) 11763 no_heartbeat = true; 11764 11765 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 11766 if (val != fw_health->last_fw_reset_cnt) 11767 has_reset = true; 11768 11769 if (!no_heartbeat && has_reset) 11770 return true; 11771 11772 return false; 11773 } 11774 11775 /* rtnl_lock is acquired before calling this function */ 11776 static void bnxt_force_fw_reset(struct bnxt *bp) 11777 { 11778 struct bnxt_fw_health *fw_health = bp->fw_health; 11779 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 11780 u32 wait_dsecs; 11781 11782 if (!test_bit(BNXT_STATE_OPEN, &bp->state) || 11783 test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 11784 return; 11785 11786 if (ptp) { 11787 spin_lock_bh(&ptp->ptp_lock); 11788 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 11789 spin_unlock_bh(&ptp->ptp_lock); 11790 } else { 11791 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 11792 } 11793 bnxt_fw_reset_close(bp); 11794 wait_dsecs = fw_health->master_func_wait_dsecs; 11795 if (fw_health->primary) { 11796 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) 11797 wait_dsecs = 0; 11798 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; 11799 } else { 11800 bp->fw_reset_timestamp = jiffies + wait_dsecs * HZ / 10; 11801 wait_dsecs = fw_health->normal_func_wait_dsecs; 11802 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 11803 } 11804 11805 bp->fw_reset_min_dsecs = fw_health->post_reset_wait_dsecs; 11806 bp->fw_reset_max_dsecs = fw_health->post_reset_max_wait_dsecs; 11807 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); 11808 } 11809 11810 void bnxt_fw_exception(struct bnxt *bp) 11811 { 11812 netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n"); 11813 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 11814 bnxt_rtnl_lock_sp(bp); 11815 bnxt_force_fw_reset(bp); 11816 bnxt_rtnl_unlock_sp(bp); 11817 } 11818 11819 /* Returns the number of registered VFs, or 1 if VF configuration is pending, or 11820 * < 0 on error. 11821 */ 11822 static int bnxt_get_registered_vfs(struct bnxt *bp) 11823 { 11824 #ifdef CONFIG_BNXT_SRIOV 11825 int rc; 11826 11827 if (!BNXT_PF(bp)) 11828 return 0; 11829 11830 rc = bnxt_hwrm_func_qcfg(bp); 11831 if (rc) { 11832 netdev_err(bp->dev, "func_qcfg cmd failed, rc = %d\n", rc); 11833 return rc; 11834 } 11835 if (bp->pf.registered_vfs) 11836 return bp->pf.registered_vfs; 11837 if (bp->sriov_cfg) 11838 return 1; 11839 #endif 11840 return 0; 11841 } 11842 11843 void bnxt_fw_reset(struct bnxt *bp) 11844 { 11845 bnxt_rtnl_lock_sp(bp); 11846 if (test_bit(BNXT_STATE_OPEN, &bp->state) && 11847 !test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 11848 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 11849 int n = 0, tmo; 11850 11851 if (ptp) { 11852 spin_lock_bh(&ptp->ptp_lock); 11853 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 11854 spin_unlock_bh(&ptp->ptp_lock); 11855 } else { 11856 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 11857 } 11858 if (bp->pf.active_vfs && 11859 !test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) 11860 n = bnxt_get_registered_vfs(bp); 11861 if (n < 0) { 11862 netdev_err(bp->dev, "Firmware reset aborted, rc = %d\n", 11863 n); 11864 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 11865 dev_close(bp->dev); 11866 goto fw_reset_exit; 11867 } else if (n > 0) { 11868 u16 vf_tmo_dsecs = n * 10; 11869 11870 if (bp->fw_reset_max_dsecs < vf_tmo_dsecs) 11871 bp->fw_reset_max_dsecs = vf_tmo_dsecs; 11872 bp->fw_reset_state = 11873 BNXT_FW_RESET_STATE_POLL_VF; 11874 bnxt_queue_fw_reset_work(bp, HZ / 10); 11875 goto fw_reset_exit; 11876 } 11877 bnxt_fw_reset_close(bp); 11878 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 11879 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; 11880 tmo = HZ / 10; 11881 } else { 11882 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 11883 tmo = bp->fw_reset_min_dsecs * HZ / 10; 11884 } 11885 bnxt_queue_fw_reset_work(bp, tmo); 11886 } 11887 fw_reset_exit: 11888 bnxt_rtnl_unlock_sp(bp); 11889 } 11890 11891 static void bnxt_chk_missed_irq(struct bnxt *bp) 11892 { 11893 int i; 11894 11895 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 11896 return; 11897 11898 for (i = 0; i < bp->cp_nr_rings; i++) { 11899 struct bnxt_napi *bnapi = bp->bnapi[i]; 11900 struct bnxt_cp_ring_info *cpr; 11901 u32 fw_ring_id; 11902 int j; 11903 11904 if (!bnapi) 11905 continue; 11906 11907 cpr = &bnapi->cp_ring; 11908 for (j = 0; j < 2; j++) { 11909 struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; 11910 u32 val[2]; 11911 11912 if (!cpr2 || cpr2->has_more_work || 11913 !bnxt_has_work(bp, cpr2)) 11914 continue; 11915 11916 if (cpr2->cp_raw_cons != cpr2->last_cp_raw_cons) { 11917 cpr2->last_cp_raw_cons = cpr2->cp_raw_cons; 11918 continue; 11919 } 11920 fw_ring_id = cpr2->cp_ring_struct.fw_ring_id; 11921 bnxt_dbg_hwrm_ring_info_get(bp, 11922 DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL, 11923 fw_ring_id, &val[0], &val[1]); 11924 cpr->sw_stats.cmn.missed_irqs++; 11925 } 11926 } 11927 } 11928 11929 static void bnxt_cfg_ntp_filters(struct bnxt *); 11930 11931 static void bnxt_init_ethtool_link_settings(struct bnxt *bp) 11932 { 11933 struct bnxt_link_info *link_info = &bp->link_info; 11934 11935 if (BNXT_AUTO_MODE(link_info->auto_mode)) { 11936 link_info->autoneg = BNXT_AUTONEG_SPEED; 11937 if (bp->hwrm_spec_code >= 0x10201) { 11938 if (link_info->auto_pause_setting & 11939 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE) 11940 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 11941 } else { 11942 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 11943 } 11944 link_info->advertising = link_info->auto_link_speeds; 11945 link_info->advertising_pam4 = link_info->auto_pam4_link_speeds; 11946 } else { 11947 link_info->req_link_speed = link_info->force_link_speed; 11948 link_info->req_signal_mode = BNXT_SIG_MODE_NRZ; 11949 if (link_info->force_pam4_link_speed) { 11950 link_info->req_link_speed = 11951 link_info->force_pam4_link_speed; 11952 link_info->req_signal_mode = BNXT_SIG_MODE_PAM4; 11953 } 11954 link_info->req_duplex = link_info->duplex_setting; 11955 } 11956 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) 11957 link_info->req_flow_ctrl = 11958 link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH; 11959 else 11960 link_info->req_flow_ctrl = link_info->force_pause_setting; 11961 } 11962 11963 static void bnxt_fw_echo_reply(struct bnxt *bp) 11964 { 11965 struct bnxt_fw_health *fw_health = bp->fw_health; 11966 struct hwrm_func_echo_response_input *req; 11967 int rc; 11968 11969 rc = hwrm_req_init(bp, req, HWRM_FUNC_ECHO_RESPONSE); 11970 if (rc) 11971 return; 11972 req->event_data1 = cpu_to_le32(fw_health->echo_req_data1); 11973 req->event_data2 = cpu_to_le32(fw_health->echo_req_data2); 11974 hwrm_req_send(bp, req); 11975 } 11976 11977 static void bnxt_sp_task(struct work_struct *work) 11978 { 11979 struct bnxt *bp = container_of(work, struct bnxt, sp_task); 11980 11981 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 11982 smp_mb__after_atomic(); 11983 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 11984 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 11985 return; 11986 } 11987 11988 if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event)) 11989 bnxt_cfg_rx_mode(bp); 11990 11991 if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event)) 11992 bnxt_cfg_ntp_filters(bp); 11993 if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event)) 11994 bnxt_hwrm_exec_fwd_req(bp); 11995 if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) { 11996 bnxt_hwrm_port_qstats(bp, 0); 11997 bnxt_hwrm_port_qstats_ext(bp, 0); 11998 bnxt_accumulate_all_stats(bp); 11999 } 12000 12001 if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { 12002 int rc; 12003 12004 mutex_lock(&bp->link_lock); 12005 if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, 12006 &bp->sp_event)) 12007 bnxt_hwrm_phy_qcaps(bp); 12008 12009 rc = bnxt_update_link(bp, true); 12010 if (rc) 12011 netdev_err(bp->dev, "SP task can't update link (rc: %x)\n", 12012 rc); 12013 12014 if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, 12015 &bp->sp_event)) 12016 bnxt_init_ethtool_link_settings(bp); 12017 mutex_unlock(&bp->link_lock); 12018 } 12019 if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) { 12020 int rc; 12021 12022 mutex_lock(&bp->link_lock); 12023 rc = bnxt_update_phy_setting(bp); 12024 mutex_unlock(&bp->link_lock); 12025 if (rc) { 12026 netdev_warn(bp->dev, "update phy settings retry failed\n"); 12027 } else { 12028 bp->link_info.phy_retry = false; 12029 netdev_info(bp->dev, "update phy settings retry succeeded\n"); 12030 } 12031 } 12032 if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) { 12033 mutex_lock(&bp->link_lock); 12034 bnxt_get_port_module_status(bp); 12035 mutex_unlock(&bp->link_lock); 12036 } 12037 12038 if (test_and_clear_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event)) 12039 bnxt_tc_flow_stats_work(bp); 12040 12041 if (test_and_clear_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event)) 12042 bnxt_chk_missed_irq(bp); 12043 12044 if (test_and_clear_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event)) 12045 bnxt_fw_echo_reply(bp); 12046 12047 /* These functions below will clear BNXT_STATE_IN_SP_TASK. They 12048 * must be the last functions to be called before exiting. 12049 */ 12050 if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) 12051 bnxt_reset(bp, false); 12052 12053 if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event)) 12054 bnxt_reset(bp, true); 12055 12056 if (test_and_clear_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event)) 12057 bnxt_rx_ring_reset(bp); 12058 12059 if (test_and_clear_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event)) { 12060 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) || 12061 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state)) 12062 bnxt_devlink_health_fw_report(bp); 12063 else 12064 bnxt_fw_reset(bp); 12065 } 12066 12067 if (test_and_clear_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event)) { 12068 if (!is_bnxt_fw_ok(bp)) 12069 bnxt_devlink_health_fw_report(bp); 12070 } 12071 12072 smp_mb__before_atomic(); 12073 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 12074 } 12075 12076 /* Under rtnl_lock */ 12077 int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, 12078 int tx_xdp) 12079 { 12080 int max_rx, max_tx, tx_sets = 1; 12081 int tx_rings_needed, stats; 12082 int rx_rings = rx; 12083 int cp, vnics, rc; 12084 12085 if (tcs) 12086 tx_sets = tcs; 12087 12088 rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh); 12089 if (rc) 12090 return rc; 12091 12092 if (max_rx < rx) 12093 return -ENOMEM; 12094 12095 tx_rings_needed = tx * tx_sets + tx_xdp; 12096 if (max_tx < tx_rings_needed) 12097 return -ENOMEM; 12098 12099 vnics = 1; 12100 if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS) 12101 vnics += rx_rings; 12102 12103 if (bp->flags & BNXT_FLAG_AGG_RINGS) 12104 rx_rings <<= 1; 12105 cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx; 12106 stats = cp; 12107 if (BNXT_NEW_RM(bp)) { 12108 cp += bnxt_get_ulp_msix_num(bp); 12109 stats += bnxt_get_ulp_stat_ctxs(bp); 12110 } 12111 return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp, 12112 stats, vnics); 12113 } 12114 12115 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev) 12116 { 12117 if (bp->bar2) { 12118 pci_iounmap(pdev, bp->bar2); 12119 bp->bar2 = NULL; 12120 } 12121 12122 if (bp->bar1) { 12123 pci_iounmap(pdev, bp->bar1); 12124 bp->bar1 = NULL; 12125 } 12126 12127 if (bp->bar0) { 12128 pci_iounmap(pdev, bp->bar0); 12129 bp->bar0 = NULL; 12130 } 12131 } 12132 12133 static void bnxt_cleanup_pci(struct bnxt *bp) 12134 { 12135 bnxt_unmap_bars(bp, bp->pdev); 12136 pci_release_regions(bp->pdev); 12137 if (pci_is_enabled(bp->pdev)) 12138 pci_disable_device(bp->pdev); 12139 } 12140 12141 static void bnxt_init_dflt_coal(struct bnxt *bp) 12142 { 12143 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 12144 struct bnxt_coal *coal; 12145 u16 flags = 0; 12146 12147 if (coal_cap->cmpl_params & 12148 RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_TIMER_RESET) 12149 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET; 12150 12151 /* Tick values in micro seconds. 12152 * 1 coal_buf x bufs_per_record = 1 completion record. 12153 */ 12154 coal = &bp->rx_coal; 12155 coal->coal_ticks = 10; 12156 coal->coal_bufs = 30; 12157 coal->coal_ticks_irq = 1; 12158 coal->coal_bufs_irq = 2; 12159 coal->idle_thresh = 50; 12160 coal->bufs_per_record = 2; 12161 coal->budget = 64; /* NAPI budget */ 12162 coal->flags = flags; 12163 12164 coal = &bp->tx_coal; 12165 coal->coal_ticks = 28; 12166 coal->coal_bufs = 30; 12167 coal->coal_ticks_irq = 2; 12168 coal->coal_bufs_irq = 2; 12169 coal->bufs_per_record = 1; 12170 coal->flags = flags; 12171 12172 bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS; 12173 } 12174 12175 static int bnxt_fw_init_one_p1(struct bnxt *bp) 12176 { 12177 int rc; 12178 12179 bp->fw_cap = 0; 12180 rc = bnxt_hwrm_ver_get(bp); 12181 bnxt_try_map_fw_health_reg(bp); 12182 if (rc) { 12183 rc = bnxt_try_recover_fw(bp); 12184 if (rc) 12185 return rc; 12186 rc = bnxt_hwrm_ver_get(bp); 12187 if (rc) 12188 return rc; 12189 } 12190 12191 bnxt_nvm_cfg_ver_get(bp); 12192 12193 rc = bnxt_hwrm_func_reset(bp); 12194 if (rc) 12195 return -ENODEV; 12196 12197 bnxt_hwrm_fw_set_time(bp); 12198 return 0; 12199 } 12200 12201 static int bnxt_fw_init_one_p2(struct bnxt *bp) 12202 { 12203 int rc; 12204 12205 /* Get the MAX capabilities for this function */ 12206 rc = bnxt_hwrm_func_qcaps(bp); 12207 if (rc) { 12208 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n", 12209 rc); 12210 return -ENODEV; 12211 } 12212 12213 rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp); 12214 if (rc) 12215 netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n", 12216 rc); 12217 12218 if (bnxt_alloc_fw_health(bp)) { 12219 netdev_warn(bp->dev, "no memory for firmware error recovery\n"); 12220 } else { 12221 rc = bnxt_hwrm_error_recovery_qcfg(bp); 12222 if (rc) 12223 netdev_warn(bp->dev, "hwrm query error recovery failure rc: %d\n", 12224 rc); 12225 } 12226 12227 rc = bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false); 12228 if (rc) 12229 return -ENODEV; 12230 12231 bnxt_hwrm_func_qcfg(bp); 12232 bnxt_hwrm_vnic_qcaps(bp); 12233 bnxt_hwrm_port_led_qcaps(bp); 12234 bnxt_ethtool_init(bp); 12235 bnxt_dcb_init(bp); 12236 return 0; 12237 } 12238 12239 static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp) 12240 { 12241 bp->flags &= ~BNXT_FLAG_UDP_RSS_CAP; 12242 bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | 12243 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | 12244 VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | 12245 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; 12246 if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) { 12247 bp->flags |= BNXT_FLAG_UDP_RSS_CAP; 12248 bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | 12249 VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; 12250 } 12251 } 12252 12253 static void bnxt_set_dflt_rfs(struct bnxt *bp) 12254 { 12255 struct net_device *dev = bp->dev; 12256 12257 dev->hw_features &= ~NETIF_F_NTUPLE; 12258 dev->features &= ~NETIF_F_NTUPLE; 12259 bp->flags &= ~BNXT_FLAG_RFS; 12260 if (bnxt_rfs_supported(bp)) { 12261 dev->hw_features |= NETIF_F_NTUPLE; 12262 if (bnxt_rfs_capable(bp)) { 12263 bp->flags |= BNXT_FLAG_RFS; 12264 dev->features |= NETIF_F_NTUPLE; 12265 } 12266 } 12267 } 12268 12269 static void bnxt_fw_init_one_p3(struct bnxt *bp) 12270 { 12271 struct pci_dev *pdev = bp->pdev; 12272 12273 bnxt_set_dflt_rss_hash_type(bp); 12274 bnxt_set_dflt_rfs(bp); 12275 12276 bnxt_get_wol_settings(bp); 12277 if (bp->flags & BNXT_FLAG_WOL_CAP) 12278 device_set_wakeup_enable(&pdev->dev, bp->wol); 12279 else 12280 device_set_wakeup_capable(&pdev->dev, false); 12281 12282 bnxt_hwrm_set_cache_line_size(bp, cache_line_size()); 12283 bnxt_hwrm_coal_params_qcaps(bp); 12284 } 12285 12286 static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt); 12287 12288 int bnxt_fw_init_one(struct bnxt *bp) 12289 { 12290 int rc; 12291 12292 rc = bnxt_fw_init_one_p1(bp); 12293 if (rc) { 12294 netdev_err(bp->dev, "Firmware init phase 1 failed\n"); 12295 return rc; 12296 } 12297 rc = bnxt_fw_init_one_p2(bp); 12298 if (rc) { 12299 netdev_err(bp->dev, "Firmware init phase 2 failed\n"); 12300 return rc; 12301 } 12302 rc = bnxt_probe_phy(bp, false); 12303 if (rc) 12304 return rc; 12305 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false); 12306 if (rc) 12307 return rc; 12308 12309 bnxt_fw_init_one_p3(bp); 12310 return 0; 12311 } 12312 12313 static void bnxt_fw_reset_writel(struct bnxt *bp, int reg_idx) 12314 { 12315 struct bnxt_fw_health *fw_health = bp->fw_health; 12316 u32 reg = fw_health->fw_reset_seq_regs[reg_idx]; 12317 u32 val = fw_health->fw_reset_seq_vals[reg_idx]; 12318 u32 reg_type, reg_off, delay_msecs; 12319 12320 delay_msecs = fw_health->fw_reset_seq_delay_msec[reg_idx]; 12321 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); 12322 reg_off = BNXT_FW_HEALTH_REG_OFF(reg); 12323 switch (reg_type) { 12324 case BNXT_FW_HEALTH_REG_TYPE_CFG: 12325 pci_write_config_dword(bp->pdev, reg_off, val); 12326 break; 12327 case BNXT_FW_HEALTH_REG_TYPE_GRC: 12328 writel(reg_off & BNXT_GRC_BASE_MASK, 12329 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 4); 12330 reg_off = (reg_off & BNXT_GRC_OFFSET_MASK) + 0x2000; 12331 fallthrough; 12332 case BNXT_FW_HEALTH_REG_TYPE_BAR0: 12333 writel(val, bp->bar0 + reg_off); 12334 break; 12335 case BNXT_FW_HEALTH_REG_TYPE_BAR1: 12336 writel(val, bp->bar1 + reg_off); 12337 break; 12338 } 12339 if (delay_msecs) { 12340 pci_read_config_dword(bp->pdev, 0, &val); 12341 msleep(delay_msecs); 12342 } 12343 } 12344 12345 bool bnxt_hwrm_reset_permitted(struct bnxt *bp) 12346 { 12347 struct hwrm_func_qcfg_output *resp; 12348 struct hwrm_func_qcfg_input *req; 12349 bool result = true; /* firmware will enforce if unknown */ 12350 12351 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 12352 return result; 12353 12354 if (hwrm_req_init(bp, req, HWRM_FUNC_QCFG)) 12355 return result; 12356 12357 req->fid = cpu_to_le16(0xffff); 12358 resp = hwrm_req_hold(bp, req); 12359 if (!hwrm_req_send(bp, req)) 12360 result = !!(le16_to_cpu(resp->flags) & 12361 FUNC_QCFG_RESP_FLAGS_HOT_RESET_ALLOWED); 12362 hwrm_req_drop(bp, req); 12363 return result; 12364 } 12365 12366 static void bnxt_reset_all(struct bnxt *bp) 12367 { 12368 struct bnxt_fw_health *fw_health = bp->fw_health; 12369 int i, rc; 12370 12371 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 12372 bnxt_fw_reset_via_optee(bp); 12373 bp->fw_reset_timestamp = jiffies; 12374 return; 12375 } 12376 12377 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_HOST) { 12378 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) 12379 bnxt_fw_reset_writel(bp, i); 12380 } else if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) { 12381 struct hwrm_fw_reset_input *req; 12382 12383 rc = hwrm_req_init(bp, req, HWRM_FW_RESET); 12384 if (!rc) { 12385 req->target_id = cpu_to_le16(HWRM_TARGET_ID_KONG); 12386 req->embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP; 12387 req->selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP; 12388 req->flags = FW_RESET_REQ_FLAGS_RESET_GRACEFUL; 12389 rc = hwrm_req_send(bp, req); 12390 } 12391 if (rc != -ENODEV) 12392 netdev_warn(bp->dev, "Unable to reset FW rc=%d\n", rc); 12393 } 12394 bp->fw_reset_timestamp = jiffies; 12395 } 12396 12397 static bool bnxt_fw_reset_timeout(struct bnxt *bp) 12398 { 12399 return time_after(jiffies, bp->fw_reset_timestamp + 12400 (bp->fw_reset_max_dsecs * HZ / 10)); 12401 } 12402 12403 static void bnxt_fw_reset_abort(struct bnxt *bp, int rc) 12404 { 12405 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 12406 if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) { 12407 bnxt_ulp_start(bp, rc); 12408 bnxt_dl_health_fw_status_update(bp, false); 12409 } 12410 bp->fw_reset_state = 0; 12411 dev_close(bp->dev); 12412 } 12413 12414 static void bnxt_fw_reset_task(struct work_struct *work) 12415 { 12416 struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work); 12417 int rc = 0; 12418 12419 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 12420 netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n"); 12421 return; 12422 } 12423 12424 switch (bp->fw_reset_state) { 12425 case BNXT_FW_RESET_STATE_POLL_VF: { 12426 int n = bnxt_get_registered_vfs(bp); 12427 int tmo; 12428 12429 if (n < 0) { 12430 netdev_err(bp->dev, "Firmware reset aborted, subsequent func_qcfg cmd failed, rc = %d, %d msecs since reset timestamp\n", 12431 n, jiffies_to_msecs(jiffies - 12432 bp->fw_reset_timestamp)); 12433 goto fw_reset_abort; 12434 } else if (n > 0) { 12435 if (bnxt_fw_reset_timeout(bp)) { 12436 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 12437 bp->fw_reset_state = 0; 12438 netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n", 12439 n); 12440 return; 12441 } 12442 bnxt_queue_fw_reset_work(bp, HZ / 10); 12443 return; 12444 } 12445 bp->fw_reset_timestamp = jiffies; 12446 rtnl_lock(); 12447 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 12448 bnxt_fw_reset_abort(bp, rc); 12449 rtnl_unlock(); 12450 return; 12451 } 12452 bnxt_fw_reset_close(bp); 12453 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 12454 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; 12455 tmo = HZ / 10; 12456 } else { 12457 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 12458 tmo = bp->fw_reset_min_dsecs * HZ / 10; 12459 } 12460 rtnl_unlock(); 12461 bnxt_queue_fw_reset_work(bp, tmo); 12462 return; 12463 } 12464 case BNXT_FW_RESET_STATE_POLL_FW_DOWN: { 12465 u32 val; 12466 12467 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 12468 if (!(val & BNXT_FW_STATUS_SHUTDOWN) && 12469 !bnxt_fw_reset_timeout(bp)) { 12470 bnxt_queue_fw_reset_work(bp, HZ / 5); 12471 return; 12472 } 12473 12474 if (!bp->fw_health->primary) { 12475 u32 wait_dsecs = bp->fw_health->normal_func_wait_dsecs; 12476 12477 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 12478 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); 12479 return; 12480 } 12481 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; 12482 } 12483 fallthrough; 12484 case BNXT_FW_RESET_STATE_RESET_FW: 12485 bnxt_reset_all(bp); 12486 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 12487 bnxt_queue_fw_reset_work(bp, bp->fw_reset_min_dsecs * HZ / 10); 12488 return; 12489 case BNXT_FW_RESET_STATE_ENABLE_DEV: 12490 bnxt_inv_fw_health_reg(bp); 12491 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) && 12492 !bp->fw_reset_min_dsecs) { 12493 u16 val; 12494 12495 pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); 12496 if (val == 0xffff) { 12497 if (bnxt_fw_reset_timeout(bp)) { 12498 netdev_err(bp->dev, "Firmware reset aborted, PCI config space invalid\n"); 12499 rc = -ETIMEDOUT; 12500 goto fw_reset_abort; 12501 } 12502 bnxt_queue_fw_reset_work(bp, HZ / 1000); 12503 return; 12504 } 12505 } 12506 clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 12507 clear_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); 12508 if (test_and_clear_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state) && 12509 !test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) 12510 bnxt_dl_remote_reload(bp); 12511 if (pci_enable_device(bp->pdev)) { 12512 netdev_err(bp->dev, "Cannot re-enable PCI device\n"); 12513 rc = -ENODEV; 12514 goto fw_reset_abort; 12515 } 12516 pci_set_master(bp->pdev); 12517 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW; 12518 fallthrough; 12519 case BNXT_FW_RESET_STATE_POLL_FW: 12520 bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT; 12521 rc = bnxt_hwrm_poll(bp); 12522 if (rc) { 12523 if (bnxt_fw_reset_timeout(bp)) { 12524 netdev_err(bp->dev, "Firmware reset aborted\n"); 12525 goto fw_reset_abort_status; 12526 } 12527 bnxt_queue_fw_reset_work(bp, HZ / 5); 12528 return; 12529 } 12530 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; 12531 bp->fw_reset_state = BNXT_FW_RESET_STATE_OPENING; 12532 fallthrough; 12533 case BNXT_FW_RESET_STATE_OPENING: 12534 while (!rtnl_trylock()) { 12535 bnxt_queue_fw_reset_work(bp, HZ / 10); 12536 return; 12537 } 12538 rc = bnxt_open(bp->dev); 12539 if (rc) { 12540 netdev_err(bp->dev, "bnxt_open() failed during FW reset\n"); 12541 bnxt_fw_reset_abort(bp, rc); 12542 rtnl_unlock(); 12543 return; 12544 } 12545 12546 if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && 12547 bp->fw_health->enabled) { 12548 bp->fw_health->last_fw_reset_cnt = 12549 bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 12550 } 12551 bp->fw_reset_state = 0; 12552 /* Make sure fw_reset_state is 0 before clearing the flag */ 12553 smp_mb__before_atomic(); 12554 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 12555 bnxt_ulp_start(bp, 0); 12556 bnxt_reenable_sriov(bp); 12557 bnxt_vf_reps_alloc(bp); 12558 bnxt_vf_reps_open(bp); 12559 bnxt_ptp_reapply_pps(bp); 12560 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 12561 if (test_and_clear_bit(BNXT_STATE_RECOVER, &bp->state)) { 12562 bnxt_dl_health_fw_recovery_done(bp); 12563 bnxt_dl_health_fw_status_update(bp, true); 12564 } 12565 rtnl_unlock(); 12566 break; 12567 } 12568 return; 12569 12570 fw_reset_abort_status: 12571 if (bp->fw_health->status_reliable || 12572 (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) { 12573 u32 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 12574 12575 netdev_err(bp->dev, "fw_health_status 0x%x\n", sts); 12576 } 12577 fw_reset_abort: 12578 rtnl_lock(); 12579 bnxt_fw_reset_abort(bp, rc); 12580 rtnl_unlock(); 12581 } 12582 12583 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) 12584 { 12585 int rc; 12586 struct bnxt *bp = netdev_priv(dev); 12587 12588 SET_NETDEV_DEV(dev, &pdev->dev); 12589 12590 /* enable device (incl. PCI PM wakeup), and bus-mastering */ 12591 rc = pci_enable_device(pdev); 12592 if (rc) { 12593 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); 12594 goto init_err; 12595 } 12596 12597 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 12598 dev_err(&pdev->dev, 12599 "Cannot find PCI device base address, aborting\n"); 12600 rc = -ENODEV; 12601 goto init_err_disable; 12602 } 12603 12604 rc = pci_request_regions(pdev, DRV_MODULE_NAME); 12605 if (rc) { 12606 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); 12607 goto init_err_disable; 12608 } 12609 12610 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 && 12611 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) { 12612 dev_err(&pdev->dev, "System does not support DMA, aborting\n"); 12613 rc = -EIO; 12614 goto init_err_release; 12615 } 12616 12617 pci_set_master(pdev); 12618 12619 bp->dev = dev; 12620 bp->pdev = pdev; 12621 12622 /* Doorbell BAR bp->bar1 is mapped after bnxt_fw_init_one_p2() 12623 * determines the BAR size. 12624 */ 12625 bp->bar0 = pci_ioremap_bar(pdev, 0); 12626 if (!bp->bar0) { 12627 dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); 12628 rc = -ENOMEM; 12629 goto init_err_release; 12630 } 12631 12632 bp->bar2 = pci_ioremap_bar(pdev, 4); 12633 if (!bp->bar2) { 12634 dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n"); 12635 rc = -ENOMEM; 12636 goto init_err_release; 12637 } 12638 12639 pci_enable_pcie_error_reporting(pdev); 12640 12641 INIT_WORK(&bp->sp_task, bnxt_sp_task); 12642 INIT_DELAYED_WORK(&bp->fw_reset_task, bnxt_fw_reset_task); 12643 12644 spin_lock_init(&bp->ntp_fltr_lock); 12645 #if BITS_PER_LONG == 32 12646 spin_lock_init(&bp->db_lock); 12647 #endif 12648 12649 bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE; 12650 bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE; 12651 12652 timer_setup(&bp->timer, bnxt_timer, 0); 12653 bp->current_interval = BNXT_TIMER_INTERVAL; 12654 12655 bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; 12656 bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; 12657 12658 clear_bit(BNXT_STATE_OPEN, &bp->state); 12659 return 0; 12660 12661 init_err_release: 12662 bnxt_unmap_bars(bp, pdev); 12663 pci_release_regions(pdev); 12664 12665 init_err_disable: 12666 pci_disable_device(pdev); 12667 12668 init_err: 12669 return rc; 12670 } 12671 12672 /* rtnl_lock held */ 12673 static int bnxt_change_mac_addr(struct net_device *dev, void *p) 12674 { 12675 struct sockaddr *addr = p; 12676 struct bnxt *bp = netdev_priv(dev); 12677 int rc = 0; 12678 12679 if (!is_valid_ether_addr(addr->sa_data)) 12680 return -EADDRNOTAVAIL; 12681 12682 if (ether_addr_equal(addr->sa_data, dev->dev_addr)) 12683 return 0; 12684 12685 rc = bnxt_approve_mac(bp, addr->sa_data, true); 12686 if (rc) 12687 return rc; 12688 12689 eth_hw_addr_set(dev, addr->sa_data); 12690 if (netif_running(dev)) { 12691 bnxt_close_nic(bp, false, false); 12692 rc = bnxt_open_nic(bp, false, false); 12693 } 12694 12695 return rc; 12696 } 12697 12698 /* rtnl_lock held */ 12699 static int bnxt_change_mtu(struct net_device *dev, int new_mtu) 12700 { 12701 struct bnxt *bp = netdev_priv(dev); 12702 12703 if (netif_running(dev)) 12704 bnxt_close_nic(bp, true, false); 12705 12706 dev->mtu = new_mtu; 12707 bnxt_set_ring_params(bp); 12708 12709 if (netif_running(dev)) 12710 return bnxt_open_nic(bp, true, false); 12711 12712 return 0; 12713 } 12714 12715 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc) 12716 { 12717 struct bnxt *bp = netdev_priv(dev); 12718 bool sh = false; 12719 int rc; 12720 12721 if (tc > bp->max_tc) { 12722 netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n", 12723 tc, bp->max_tc); 12724 return -EINVAL; 12725 } 12726 12727 if (netdev_get_num_tc(dev) == tc) 12728 return 0; 12729 12730 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 12731 sh = true; 12732 12733 rc = bnxt_check_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings, 12734 sh, tc, bp->tx_nr_rings_xdp); 12735 if (rc) 12736 return rc; 12737 12738 /* Needs to close the device and do hw resource re-allocations */ 12739 if (netif_running(bp->dev)) 12740 bnxt_close_nic(bp, true, false); 12741 12742 if (tc) { 12743 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc; 12744 netdev_set_num_tc(dev, tc); 12745 } else { 12746 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 12747 netdev_reset_tc(dev); 12748 } 12749 bp->tx_nr_rings += bp->tx_nr_rings_xdp; 12750 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : 12751 bp->tx_nr_rings + bp->rx_nr_rings; 12752 12753 if (netif_running(bp->dev)) 12754 return bnxt_open_nic(bp, true, false); 12755 12756 return 0; 12757 } 12758 12759 static int bnxt_setup_tc_block_cb(enum tc_setup_type type, void *type_data, 12760 void *cb_priv) 12761 { 12762 struct bnxt *bp = cb_priv; 12763 12764 if (!bnxt_tc_flower_enabled(bp) || 12765 !tc_cls_can_offload_and_chain0(bp->dev, type_data)) 12766 return -EOPNOTSUPP; 12767 12768 switch (type) { 12769 case TC_SETUP_CLSFLOWER: 12770 return bnxt_tc_setup_flower(bp, bp->pf.fw_fid, type_data); 12771 default: 12772 return -EOPNOTSUPP; 12773 } 12774 } 12775 12776 LIST_HEAD(bnxt_block_cb_list); 12777 12778 static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type, 12779 void *type_data) 12780 { 12781 struct bnxt *bp = netdev_priv(dev); 12782 12783 switch (type) { 12784 case TC_SETUP_BLOCK: 12785 return flow_block_cb_setup_simple(type_data, 12786 &bnxt_block_cb_list, 12787 bnxt_setup_tc_block_cb, 12788 bp, bp, true); 12789 case TC_SETUP_QDISC_MQPRIO: { 12790 struct tc_mqprio_qopt *mqprio = type_data; 12791 12792 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; 12793 12794 return bnxt_setup_mq_tc(dev, mqprio->num_tc); 12795 } 12796 default: 12797 return -EOPNOTSUPP; 12798 } 12799 } 12800 12801 #ifdef CONFIG_RFS_ACCEL 12802 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1, 12803 struct bnxt_ntuple_filter *f2) 12804 { 12805 struct flow_keys *keys1 = &f1->fkeys; 12806 struct flow_keys *keys2 = &f2->fkeys; 12807 12808 if (keys1->basic.n_proto != keys2->basic.n_proto || 12809 keys1->basic.ip_proto != keys2->basic.ip_proto) 12810 return false; 12811 12812 if (keys1->basic.n_proto == htons(ETH_P_IP)) { 12813 if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src || 12814 keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst) 12815 return false; 12816 } else { 12817 if (memcmp(&keys1->addrs.v6addrs.src, &keys2->addrs.v6addrs.src, 12818 sizeof(keys1->addrs.v6addrs.src)) || 12819 memcmp(&keys1->addrs.v6addrs.dst, &keys2->addrs.v6addrs.dst, 12820 sizeof(keys1->addrs.v6addrs.dst))) 12821 return false; 12822 } 12823 12824 if (keys1->ports.ports == keys2->ports.ports && 12825 keys1->control.flags == keys2->control.flags && 12826 ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) && 12827 ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr)) 12828 return true; 12829 12830 return false; 12831 } 12832 12833 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, 12834 u16 rxq_index, u32 flow_id) 12835 { 12836 struct bnxt *bp = netdev_priv(dev); 12837 struct bnxt_ntuple_filter *fltr, *new_fltr; 12838 struct flow_keys *fkeys; 12839 struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb); 12840 int rc = 0, idx, bit_id, l2_idx = 0; 12841 struct hlist_head *head; 12842 u32 flags; 12843 12844 if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) { 12845 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 12846 int off = 0, j; 12847 12848 netif_addr_lock_bh(dev); 12849 for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) { 12850 if (ether_addr_equal(eth->h_dest, 12851 vnic->uc_list + off)) { 12852 l2_idx = j + 1; 12853 break; 12854 } 12855 } 12856 netif_addr_unlock_bh(dev); 12857 if (!l2_idx) 12858 return -EINVAL; 12859 } 12860 new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC); 12861 if (!new_fltr) 12862 return -ENOMEM; 12863 12864 fkeys = &new_fltr->fkeys; 12865 if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) { 12866 rc = -EPROTONOSUPPORT; 12867 goto err_free; 12868 } 12869 12870 if ((fkeys->basic.n_proto != htons(ETH_P_IP) && 12871 fkeys->basic.n_proto != htons(ETH_P_IPV6)) || 12872 ((fkeys->basic.ip_proto != IPPROTO_TCP) && 12873 (fkeys->basic.ip_proto != IPPROTO_UDP))) { 12874 rc = -EPROTONOSUPPORT; 12875 goto err_free; 12876 } 12877 if (fkeys->basic.n_proto == htons(ETH_P_IPV6) && 12878 bp->hwrm_spec_code < 0x10601) { 12879 rc = -EPROTONOSUPPORT; 12880 goto err_free; 12881 } 12882 flags = fkeys->control.flags; 12883 if (((flags & FLOW_DIS_ENCAPSULATION) && 12884 bp->hwrm_spec_code < 0x10601) || (flags & FLOW_DIS_IS_FRAGMENT)) { 12885 rc = -EPROTONOSUPPORT; 12886 goto err_free; 12887 } 12888 12889 memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN); 12890 memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN); 12891 12892 idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK; 12893 head = &bp->ntp_fltr_hash_tbl[idx]; 12894 rcu_read_lock(); 12895 hlist_for_each_entry_rcu(fltr, head, hash) { 12896 if (bnxt_fltr_match(fltr, new_fltr)) { 12897 rcu_read_unlock(); 12898 rc = 0; 12899 goto err_free; 12900 } 12901 } 12902 rcu_read_unlock(); 12903 12904 spin_lock_bh(&bp->ntp_fltr_lock); 12905 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, 12906 BNXT_NTP_FLTR_MAX_FLTR, 0); 12907 if (bit_id < 0) { 12908 spin_unlock_bh(&bp->ntp_fltr_lock); 12909 rc = -ENOMEM; 12910 goto err_free; 12911 } 12912 12913 new_fltr->sw_id = (u16)bit_id; 12914 new_fltr->flow_id = flow_id; 12915 new_fltr->l2_fltr_idx = l2_idx; 12916 new_fltr->rxq = rxq_index; 12917 hlist_add_head_rcu(&new_fltr->hash, head); 12918 bp->ntp_fltr_count++; 12919 spin_unlock_bh(&bp->ntp_fltr_lock); 12920 12921 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); 12922 bnxt_queue_sp_work(bp); 12923 12924 return new_fltr->sw_id; 12925 12926 err_free: 12927 kfree(new_fltr); 12928 return rc; 12929 } 12930 12931 static void bnxt_cfg_ntp_filters(struct bnxt *bp) 12932 { 12933 int i; 12934 12935 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 12936 struct hlist_head *head; 12937 struct hlist_node *tmp; 12938 struct bnxt_ntuple_filter *fltr; 12939 int rc; 12940 12941 head = &bp->ntp_fltr_hash_tbl[i]; 12942 hlist_for_each_entry_safe(fltr, tmp, head, hash) { 12943 bool del = false; 12944 12945 if (test_bit(BNXT_FLTR_VALID, &fltr->state)) { 12946 if (rps_may_expire_flow(bp->dev, fltr->rxq, 12947 fltr->flow_id, 12948 fltr->sw_id)) { 12949 bnxt_hwrm_cfa_ntuple_filter_free(bp, 12950 fltr); 12951 del = true; 12952 } 12953 } else { 12954 rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp, 12955 fltr); 12956 if (rc) 12957 del = true; 12958 else 12959 set_bit(BNXT_FLTR_VALID, &fltr->state); 12960 } 12961 12962 if (del) { 12963 spin_lock_bh(&bp->ntp_fltr_lock); 12964 hlist_del_rcu(&fltr->hash); 12965 bp->ntp_fltr_count--; 12966 spin_unlock_bh(&bp->ntp_fltr_lock); 12967 synchronize_rcu(); 12968 clear_bit(fltr->sw_id, bp->ntp_fltr_bmap); 12969 kfree(fltr); 12970 } 12971 } 12972 } 12973 if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event)) 12974 netdev_info(bp->dev, "Receive PF driver unload event!\n"); 12975 } 12976 12977 #else 12978 12979 static void bnxt_cfg_ntp_filters(struct bnxt *bp) 12980 { 12981 } 12982 12983 #endif /* CONFIG_RFS_ACCEL */ 12984 12985 static int bnxt_udp_tunnel_sync(struct net_device *netdev, unsigned int table) 12986 { 12987 struct bnxt *bp = netdev_priv(netdev); 12988 struct udp_tunnel_info ti; 12989 unsigned int cmd; 12990 12991 udp_tunnel_nic_get_port(netdev, table, 0, &ti); 12992 if (ti.type == UDP_TUNNEL_TYPE_VXLAN) 12993 cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN; 12994 else 12995 cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE; 12996 12997 if (ti.port) 12998 return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti.port, cmd); 12999 13000 return bnxt_hwrm_tunnel_dst_port_free(bp, cmd); 13001 } 13002 13003 static const struct udp_tunnel_nic_info bnxt_udp_tunnels = { 13004 .sync_table = bnxt_udp_tunnel_sync, 13005 .flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | 13006 UDP_TUNNEL_NIC_INFO_OPEN_ONLY, 13007 .tables = { 13008 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, 13009 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, }, 13010 }, 13011 }; 13012 13013 static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, 13014 struct net_device *dev, u32 filter_mask, 13015 int nlflags) 13016 { 13017 struct bnxt *bp = netdev_priv(dev); 13018 13019 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0, 13020 nlflags, filter_mask, NULL); 13021 } 13022 13023 static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, 13024 u16 flags, struct netlink_ext_ack *extack) 13025 { 13026 struct bnxt *bp = netdev_priv(dev); 13027 struct nlattr *attr, *br_spec; 13028 int rem, rc = 0; 13029 13030 if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp)) 13031 return -EOPNOTSUPP; 13032 13033 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); 13034 if (!br_spec) 13035 return -EINVAL; 13036 13037 nla_for_each_nested(attr, br_spec, rem) { 13038 u16 mode; 13039 13040 if (nla_type(attr) != IFLA_BRIDGE_MODE) 13041 continue; 13042 13043 if (nla_len(attr) < sizeof(mode)) 13044 return -EINVAL; 13045 13046 mode = nla_get_u16(attr); 13047 if (mode == bp->br_mode) 13048 break; 13049 13050 rc = bnxt_hwrm_set_br_mode(bp, mode); 13051 if (!rc) 13052 bp->br_mode = mode; 13053 break; 13054 } 13055 return rc; 13056 } 13057 13058 int bnxt_get_port_parent_id(struct net_device *dev, 13059 struct netdev_phys_item_id *ppid) 13060 { 13061 struct bnxt *bp = netdev_priv(dev); 13062 13063 if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV) 13064 return -EOPNOTSUPP; 13065 13066 /* The PF and it's VF-reps only support the switchdev framework */ 13067 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID)) 13068 return -EOPNOTSUPP; 13069 13070 ppid->id_len = sizeof(bp->dsn); 13071 memcpy(ppid->id, bp->dsn, ppid->id_len); 13072 13073 return 0; 13074 } 13075 13076 static struct devlink_port *bnxt_get_devlink_port(struct net_device *dev) 13077 { 13078 struct bnxt *bp = netdev_priv(dev); 13079 13080 return &bp->dl_port; 13081 } 13082 13083 static const struct net_device_ops bnxt_netdev_ops = { 13084 .ndo_open = bnxt_open, 13085 .ndo_start_xmit = bnxt_start_xmit, 13086 .ndo_stop = bnxt_close, 13087 .ndo_get_stats64 = bnxt_get_stats64, 13088 .ndo_set_rx_mode = bnxt_set_rx_mode, 13089 .ndo_eth_ioctl = bnxt_ioctl, 13090 .ndo_validate_addr = eth_validate_addr, 13091 .ndo_set_mac_address = bnxt_change_mac_addr, 13092 .ndo_change_mtu = bnxt_change_mtu, 13093 .ndo_fix_features = bnxt_fix_features, 13094 .ndo_set_features = bnxt_set_features, 13095 .ndo_features_check = bnxt_features_check, 13096 .ndo_tx_timeout = bnxt_tx_timeout, 13097 #ifdef CONFIG_BNXT_SRIOV 13098 .ndo_get_vf_config = bnxt_get_vf_config, 13099 .ndo_set_vf_mac = bnxt_set_vf_mac, 13100 .ndo_set_vf_vlan = bnxt_set_vf_vlan, 13101 .ndo_set_vf_rate = bnxt_set_vf_bw, 13102 .ndo_set_vf_link_state = bnxt_set_vf_link_state, 13103 .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk, 13104 .ndo_set_vf_trust = bnxt_set_vf_trust, 13105 #endif 13106 .ndo_setup_tc = bnxt_setup_tc, 13107 #ifdef CONFIG_RFS_ACCEL 13108 .ndo_rx_flow_steer = bnxt_rx_flow_steer, 13109 #endif 13110 .ndo_bpf = bnxt_xdp, 13111 .ndo_xdp_xmit = bnxt_xdp_xmit, 13112 .ndo_bridge_getlink = bnxt_bridge_getlink, 13113 .ndo_bridge_setlink = bnxt_bridge_setlink, 13114 .ndo_get_devlink_port = bnxt_get_devlink_port, 13115 }; 13116 13117 static void bnxt_remove_one(struct pci_dev *pdev) 13118 { 13119 struct net_device *dev = pci_get_drvdata(pdev); 13120 struct bnxt *bp = netdev_priv(dev); 13121 13122 if (BNXT_PF(bp)) 13123 bnxt_sriov_disable(bp); 13124 13125 if (BNXT_PF(bp)) 13126 devlink_port_type_clear(&bp->dl_port); 13127 13128 bnxt_ptp_clear(bp); 13129 pci_disable_pcie_error_reporting(pdev); 13130 unregister_netdev(dev); 13131 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 13132 /* Flush any pending tasks */ 13133 cancel_work_sync(&bp->sp_task); 13134 cancel_delayed_work_sync(&bp->fw_reset_task); 13135 bp->sp_event = 0; 13136 13137 bnxt_dl_fw_reporters_destroy(bp); 13138 bnxt_dl_unregister(bp); 13139 bnxt_shutdown_tc(bp); 13140 13141 bnxt_clear_int_mode(bp); 13142 bnxt_hwrm_func_drv_unrgtr(bp); 13143 bnxt_free_hwrm_resources(bp); 13144 bnxt_ethtool_free(bp); 13145 bnxt_dcb_free(bp); 13146 kfree(bp->edev); 13147 bp->edev = NULL; 13148 kfree(bp->ptp_cfg); 13149 bp->ptp_cfg = NULL; 13150 kfree(bp->fw_health); 13151 bp->fw_health = NULL; 13152 bnxt_cleanup_pci(bp); 13153 bnxt_free_ctx_mem(bp); 13154 kfree(bp->ctx); 13155 bp->ctx = NULL; 13156 kfree(bp->rss_indir_tbl); 13157 bp->rss_indir_tbl = NULL; 13158 bnxt_free_port_stats(bp); 13159 free_netdev(dev); 13160 } 13161 13162 static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt) 13163 { 13164 int rc = 0; 13165 struct bnxt_link_info *link_info = &bp->link_info; 13166 13167 bp->phy_flags = 0; 13168 rc = bnxt_hwrm_phy_qcaps(bp); 13169 if (rc) { 13170 netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n", 13171 rc); 13172 return rc; 13173 } 13174 if (bp->phy_flags & BNXT_PHY_FL_NO_FCS) 13175 bp->dev->priv_flags |= IFF_SUPP_NOFCS; 13176 else 13177 bp->dev->priv_flags &= ~IFF_SUPP_NOFCS; 13178 if (!fw_dflt) 13179 return 0; 13180 13181 mutex_lock(&bp->link_lock); 13182 rc = bnxt_update_link(bp, false); 13183 if (rc) { 13184 mutex_unlock(&bp->link_lock); 13185 netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n", 13186 rc); 13187 return rc; 13188 } 13189 13190 /* Older firmware does not have supported_auto_speeds, so assume 13191 * that all supported speeds can be autonegotiated. 13192 */ 13193 if (link_info->auto_link_speeds && !link_info->support_auto_speeds) 13194 link_info->support_auto_speeds = link_info->support_speeds; 13195 13196 bnxt_init_ethtool_link_settings(bp); 13197 mutex_unlock(&bp->link_lock); 13198 return 0; 13199 } 13200 13201 static int bnxt_get_max_irq(struct pci_dev *pdev) 13202 { 13203 u16 ctrl; 13204 13205 if (!pdev->msix_cap) 13206 return 1; 13207 13208 pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl); 13209 return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1; 13210 } 13211 13212 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, 13213 int *max_cp) 13214 { 13215 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 13216 int max_ring_grps = 0, max_irq; 13217 13218 *max_tx = hw_resc->max_tx_rings; 13219 *max_rx = hw_resc->max_rx_rings; 13220 *max_cp = bnxt_get_max_func_cp_rings_for_en(bp); 13221 max_irq = min_t(int, bnxt_get_max_func_irqs(bp) - 13222 bnxt_get_ulp_msix_num(bp), 13223 hw_resc->max_stat_ctxs - bnxt_get_ulp_stat_ctxs(bp)); 13224 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) 13225 *max_cp = min_t(int, *max_cp, max_irq); 13226 max_ring_grps = hw_resc->max_hw_ring_grps; 13227 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { 13228 *max_cp -= 1; 13229 *max_rx -= 2; 13230 } 13231 if (bp->flags & BNXT_FLAG_AGG_RINGS) 13232 *max_rx >>= 1; 13233 if (bp->flags & BNXT_FLAG_CHIP_P5) { 13234 bnxt_trim_rings(bp, max_rx, max_tx, *max_cp, false); 13235 /* On P5 chips, max_cp output param should be available NQs */ 13236 *max_cp = max_irq; 13237 } 13238 *max_rx = min_t(int, *max_rx, max_ring_grps); 13239 } 13240 13241 int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared) 13242 { 13243 int rx, tx, cp; 13244 13245 _bnxt_get_max_rings(bp, &rx, &tx, &cp); 13246 *max_rx = rx; 13247 *max_tx = tx; 13248 if (!rx || !tx || !cp) 13249 return -ENOMEM; 13250 13251 return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared); 13252 } 13253 13254 static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx, 13255 bool shared) 13256 { 13257 int rc; 13258 13259 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 13260 if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) { 13261 /* Not enough rings, try disabling agg rings. */ 13262 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 13263 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 13264 if (rc) { 13265 /* set BNXT_FLAG_AGG_RINGS back for consistency */ 13266 bp->flags |= BNXT_FLAG_AGG_RINGS; 13267 return rc; 13268 } 13269 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 13270 bp->dev->hw_features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 13271 bp->dev->features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 13272 bnxt_set_ring_params(bp); 13273 } 13274 13275 if (bp->flags & BNXT_FLAG_ROCE_CAP) { 13276 int max_cp, max_stat, max_irq; 13277 13278 /* Reserve minimum resources for RoCE */ 13279 max_cp = bnxt_get_max_func_cp_rings(bp); 13280 max_stat = bnxt_get_max_func_stat_ctxs(bp); 13281 max_irq = bnxt_get_max_func_irqs(bp); 13282 if (max_cp <= BNXT_MIN_ROCE_CP_RINGS || 13283 max_irq <= BNXT_MIN_ROCE_CP_RINGS || 13284 max_stat <= BNXT_MIN_ROCE_STAT_CTXS) 13285 return 0; 13286 13287 max_cp -= BNXT_MIN_ROCE_CP_RINGS; 13288 max_irq -= BNXT_MIN_ROCE_CP_RINGS; 13289 max_stat -= BNXT_MIN_ROCE_STAT_CTXS; 13290 max_cp = min_t(int, max_cp, max_irq); 13291 max_cp = min_t(int, max_cp, max_stat); 13292 rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared); 13293 if (rc) 13294 rc = 0; 13295 } 13296 return rc; 13297 } 13298 13299 /* In initial default shared ring setting, each shared ring must have a 13300 * RX/TX ring pair. 13301 */ 13302 static void bnxt_trim_dflt_sh_rings(struct bnxt *bp) 13303 { 13304 bp->cp_nr_rings = min_t(int, bp->tx_nr_rings_per_tc, bp->rx_nr_rings); 13305 bp->rx_nr_rings = bp->cp_nr_rings; 13306 bp->tx_nr_rings_per_tc = bp->cp_nr_rings; 13307 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 13308 } 13309 13310 static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh) 13311 { 13312 int dflt_rings, max_rx_rings, max_tx_rings, rc; 13313 13314 if (!bnxt_can_reserve_rings(bp)) 13315 return 0; 13316 13317 if (sh) 13318 bp->flags |= BNXT_FLAG_SHARED_RINGS; 13319 dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues(); 13320 /* Reduce default rings on multi-port cards so that total default 13321 * rings do not exceed CPU count. 13322 */ 13323 if (bp->port_count > 1) { 13324 int max_rings = 13325 max_t(int, num_online_cpus() / bp->port_count, 1); 13326 13327 dflt_rings = min_t(int, dflt_rings, max_rings); 13328 } 13329 rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh); 13330 if (rc) 13331 return rc; 13332 bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings); 13333 bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings); 13334 if (sh) 13335 bnxt_trim_dflt_sh_rings(bp); 13336 else 13337 bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; 13338 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 13339 13340 rc = __bnxt_reserve_rings(bp); 13341 if (rc && rc != -ENODEV) 13342 netdev_warn(bp->dev, "Unable to reserve tx rings\n"); 13343 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 13344 if (sh) 13345 bnxt_trim_dflt_sh_rings(bp); 13346 13347 /* Rings may have been trimmed, re-reserve the trimmed rings. */ 13348 if (bnxt_need_reserve_rings(bp)) { 13349 rc = __bnxt_reserve_rings(bp); 13350 if (rc && rc != -ENODEV) 13351 netdev_warn(bp->dev, "2nd rings reservation failed.\n"); 13352 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 13353 } 13354 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 13355 bp->rx_nr_rings++; 13356 bp->cp_nr_rings++; 13357 } 13358 if (rc) { 13359 bp->tx_nr_rings = 0; 13360 bp->rx_nr_rings = 0; 13361 } 13362 return rc; 13363 } 13364 13365 static int bnxt_init_dflt_ring_mode(struct bnxt *bp) 13366 { 13367 int rc; 13368 13369 if (bp->tx_nr_rings) 13370 return 0; 13371 13372 bnxt_ulp_irq_stop(bp); 13373 bnxt_clear_int_mode(bp); 13374 rc = bnxt_set_dflt_rings(bp, true); 13375 if (rc) { 13376 if (BNXT_VF(bp) && rc == -ENODEV) 13377 netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); 13378 else 13379 netdev_err(bp->dev, "Not enough rings available.\n"); 13380 goto init_dflt_ring_err; 13381 } 13382 rc = bnxt_init_int_mode(bp); 13383 if (rc) 13384 goto init_dflt_ring_err; 13385 13386 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 13387 13388 bnxt_set_dflt_rfs(bp); 13389 13390 init_dflt_ring_err: 13391 bnxt_ulp_irq_restart(bp, rc); 13392 return rc; 13393 } 13394 13395 int bnxt_restore_pf_fw_resources(struct bnxt *bp) 13396 { 13397 int rc; 13398 13399 ASSERT_RTNL(); 13400 bnxt_hwrm_func_qcaps(bp); 13401 13402 if (netif_running(bp->dev)) 13403 __bnxt_close_nic(bp, true, false); 13404 13405 bnxt_ulp_irq_stop(bp); 13406 bnxt_clear_int_mode(bp); 13407 rc = bnxt_init_int_mode(bp); 13408 bnxt_ulp_irq_restart(bp, rc); 13409 13410 if (netif_running(bp->dev)) { 13411 if (rc) 13412 dev_close(bp->dev); 13413 else 13414 rc = bnxt_open_nic(bp, true, false); 13415 } 13416 13417 return rc; 13418 } 13419 13420 static int bnxt_init_mac_addr(struct bnxt *bp) 13421 { 13422 int rc = 0; 13423 13424 if (BNXT_PF(bp)) { 13425 eth_hw_addr_set(bp->dev, bp->pf.mac_addr); 13426 } else { 13427 #ifdef CONFIG_BNXT_SRIOV 13428 struct bnxt_vf_info *vf = &bp->vf; 13429 bool strict_approval = true; 13430 13431 if (is_valid_ether_addr(vf->mac_addr)) { 13432 /* overwrite netdev dev_addr with admin VF MAC */ 13433 eth_hw_addr_set(bp->dev, vf->mac_addr); 13434 /* Older PF driver or firmware may not approve this 13435 * correctly. 13436 */ 13437 strict_approval = false; 13438 } else { 13439 eth_hw_addr_random(bp->dev); 13440 } 13441 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval); 13442 #endif 13443 } 13444 return rc; 13445 } 13446 13447 static void bnxt_vpd_read_info(struct bnxt *bp) 13448 { 13449 struct pci_dev *pdev = bp->pdev; 13450 unsigned int vpd_size, kw_len; 13451 int pos, size; 13452 u8 *vpd_data; 13453 13454 vpd_data = pci_vpd_alloc(pdev, &vpd_size); 13455 if (IS_ERR(vpd_data)) { 13456 pci_warn(pdev, "Unable to read VPD\n"); 13457 return; 13458 } 13459 13460 pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, 13461 PCI_VPD_RO_KEYWORD_PARTNO, &kw_len); 13462 if (pos < 0) 13463 goto read_sn; 13464 13465 size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); 13466 memcpy(bp->board_partno, &vpd_data[pos], size); 13467 13468 read_sn: 13469 pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, 13470 PCI_VPD_RO_KEYWORD_SERIALNO, 13471 &kw_len); 13472 if (pos < 0) 13473 goto exit; 13474 13475 size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); 13476 memcpy(bp->board_serialno, &vpd_data[pos], size); 13477 exit: 13478 kfree(vpd_data); 13479 } 13480 13481 static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[]) 13482 { 13483 struct pci_dev *pdev = bp->pdev; 13484 u64 qword; 13485 13486 qword = pci_get_dsn(pdev); 13487 if (!qword) { 13488 netdev_info(bp->dev, "Unable to read adapter's DSN\n"); 13489 return -EOPNOTSUPP; 13490 } 13491 13492 put_unaligned_le64(qword, dsn); 13493 13494 bp->flags |= BNXT_FLAG_DSN_VALID; 13495 return 0; 13496 } 13497 13498 static int bnxt_map_db_bar(struct bnxt *bp) 13499 { 13500 if (!bp->db_size) 13501 return -ENODEV; 13502 bp->bar1 = pci_iomap(bp->pdev, 2, bp->db_size); 13503 if (!bp->bar1) 13504 return -ENOMEM; 13505 return 0; 13506 } 13507 13508 void bnxt_print_device_info(struct bnxt *bp) 13509 { 13510 netdev_info(bp->dev, "%s found at mem %lx, node addr %pM\n", 13511 board_info[bp->board_idx].name, 13512 (long)pci_resource_start(bp->pdev, 0), bp->dev->dev_addr); 13513 13514 pcie_print_link_status(bp->pdev); 13515 } 13516 13517 static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 13518 { 13519 struct net_device *dev; 13520 struct bnxt *bp; 13521 int rc, max_irqs; 13522 13523 if (pci_is_bridge(pdev)) 13524 return -ENODEV; 13525 13526 /* Clear any pending DMA transactions from crash kernel 13527 * while loading driver in capture kernel. 13528 */ 13529 if (is_kdump_kernel()) { 13530 pci_clear_master(pdev); 13531 pcie_flr(pdev); 13532 } 13533 13534 max_irqs = bnxt_get_max_irq(pdev); 13535 dev = alloc_etherdev_mq(sizeof(*bp), max_irqs); 13536 if (!dev) 13537 return -ENOMEM; 13538 13539 bp = netdev_priv(dev); 13540 bp->board_idx = ent->driver_data; 13541 bp->msg_enable = BNXT_DEF_MSG_ENABLE; 13542 bnxt_set_max_func_irqs(bp, max_irqs); 13543 13544 if (bnxt_vf_pciid(bp->board_idx)) 13545 bp->flags |= BNXT_FLAG_VF; 13546 13547 if (pdev->msix_cap) 13548 bp->flags |= BNXT_FLAG_MSIX_CAP; 13549 13550 rc = bnxt_init_board(pdev, dev); 13551 if (rc < 0) 13552 goto init_err_free; 13553 13554 dev->netdev_ops = &bnxt_netdev_ops; 13555 dev->watchdog_timeo = BNXT_TX_TIMEOUT; 13556 dev->ethtool_ops = &bnxt_ethtool_ops; 13557 pci_set_drvdata(pdev, dev); 13558 13559 rc = bnxt_alloc_hwrm_resources(bp); 13560 if (rc) 13561 goto init_err_pci_clean; 13562 13563 mutex_init(&bp->hwrm_cmd_lock); 13564 mutex_init(&bp->link_lock); 13565 13566 rc = bnxt_fw_init_one_p1(bp); 13567 if (rc) 13568 goto init_err_pci_clean; 13569 13570 if (BNXT_PF(bp)) 13571 bnxt_vpd_read_info(bp); 13572 13573 if (BNXT_CHIP_P5(bp)) { 13574 bp->flags |= BNXT_FLAG_CHIP_P5; 13575 if (BNXT_CHIP_SR2(bp)) 13576 bp->flags |= BNXT_FLAG_CHIP_SR2; 13577 } 13578 13579 rc = bnxt_alloc_rss_indir_tbl(bp); 13580 if (rc) 13581 goto init_err_pci_clean; 13582 13583 rc = bnxt_fw_init_one_p2(bp); 13584 if (rc) 13585 goto init_err_pci_clean; 13586 13587 rc = bnxt_map_db_bar(bp); 13588 if (rc) { 13589 dev_err(&pdev->dev, "Cannot map doorbell BAR rc = %d, aborting\n", 13590 rc); 13591 goto init_err_pci_clean; 13592 } 13593 13594 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 13595 NETIF_F_TSO | NETIF_F_TSO6 | 13596 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 13597 NETIF_F_GSO_IPXIP4 | 13598 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 13599 NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH | 13600 NETIF_F_RXCSUM | NETIF_F_GRO; 13601 13602 if (BNXT_SUPPORTS_TPA(bp)) 13603 dev->hw_features |= NETIF_F_LRO; 13604 13605 dev->hw_enc_features = 13606 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 13607 NETIF_F_TSO | NETIF_F_TSO6 | 13608 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 13609 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 13610 NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL; 13611 dev->udp_tunnel_nic_info = &bnxt_udp_tunnels; 13612 13613 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM | 13614 NETIF_F_GSO_GRE_CSUM; 13615 dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA; 13616 if (bp->fw_cap & BNXT_FW_CAP_VLAN_RX_STRIP) 13617 dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_RX; 13618 if (bp->fw_cap & BNXT_FW_CAP_VLAN_TX_INSERT) 13619 dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_TX; 13620 if (BNXT_SUPPORTS_TPA(bp)) 13621 dev->hw_features |= NETIF_F_GRO_HW; 13622 dev->features |= dev->hw_features | NETIF_F_HIGHDMA; 13623 if (dev->features & NETIF_F_GRO_HW) 13624 dev->features &= ~NETIF_F_LRO; 13625 dev->priv_flags |= IFF_UNICAST_FLT; 13626 13627 #ifdef CONFIG_BNXT_SRIOV 13628 init_waitqueue_head(&bp->sriov_cfg_wait); 13629 #endif 13630 if (BNXT_SUPPORTS_TPA(bp)) { 13631 bp->gro_func = bnxt_gro_func_5730x; 13632 if (BNXT_CHIP_P4(bp)) 13633 bp->gro_func = bnxt_gro_func_5731x; 13634 else if (BNXT_CHIP_P5(bp)) 13635 bp->gro_func = bnxt_gro_func_5750x; 13636 } 13637 if (!BNXT_CHIP_P4_PLUS(bp)) 13638 bp->flags |= BNXT_FLAG_DOUBLE_DB; 13639 13640 rc = bnxt_init_mac_addr(bp); 13641 if (rc) { 13642 dev_err(&pdev->dev, "Unable to initialize mac address.\n"); 13643 rc = -EADDRNOTAVAIL; 13644 goto init_err_pci_clean; 13645 } 13646 13647 if (BNXT_PF(bp)) { 13648 /* Read the adapter's DSN to use as the eswitch switch_id */ 13649 rc = bnxt_pcie_dsn_get(bp, bp->dsn); 13650 } 13651 13652 /* MTU range: 60 - FW defined max */ 13653 dev->min_mtu = ETH_ZLEN; 13654 dev->max_mtu = bp->max_mtu; 13655 13656 rc = bnxt_probe_phy(bp, true); 13657 if (rc) 13658 goto init_err_pci_clean; 13659 13660 bnxt_set_rx_skb_mode(bp, false); 13661 bnxt_set_tpa_flags(bp); 13662 bnxt_set_ring_params(bp); 13663 rc = bnxt_set_dflt_rings(bp, true); 13664 if (rc) { 13665 if (BNXT_VF(bp) && rc == -ENODEV) { 13666 netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); 13667 } else { 13668 netdev_err(bp->dev, "Not enough rings available.\n"); 13669 rc = -ENOMEM; 13670 } 13671 goto init_err_pci_clean; 13672 } 13673 13674 bnxt_fw_init_one_p3(bp); 13675 13676 bnxt_init_dflt_coal(bp); 13677 13678 if (dev->hw_features & BNXT_HW_FEATURE_VLAN_ALL_RX) 13679 bp->flags |= BNXT_FLAG_STRIP_VLAN; 13680 13681 rc = bnxt_init_int_mode(bp); 13682 if (rc) 13683 goto init_err_pci_clean; 13684 13685 /* No TC has been set yet and rings may have been trimmed due to 13686 * limited MSIX, so we re-initialize the TX rings per TC. 13687 */ 13688 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 13689 13690 if (BNXT_PF(bp)) { 13691 if (!bnxt_pf_wq) { 13692 bnxt_pf_wq = 13693 create_singlethread_workqueue("bnxt_pf_wq"); 13694 if (!bnxt_pf_wq) { 13695 dev_err(&pdev->dev, "Unable to create workqueue.\n"); 13696 rc = -ENOMEM; 13697 goto init_err_pci_clean; 13698 } 13699 } 13700 rc = bnxt_init_tc(bp); 13701 if (rc) 13702 netdev_err(dev, "Failed to initialize TC flower offload, err = %d.\n", 13703 rc); 13704 } 13705 13706 bnxt_inv_fw_health_reg(bp); 13707 rc = bnxt_dl_register(bp); 13708 if (rc) 13709 goto init_err_dl; 13710 13711 rc = register_netdev(dev); 13712 if (rc) 13713 goto init_err_cleanup; 13714 13715 if (BNXT_PF(bp)) 13716 devlink_port_type_eth_set(&bp->dl_port, bp->dev); 13717 bnxt_dl_fw_reporters_create(bp); 13718 13719 bnxt_print_device_info(bp); 13720 13721 pci_save_state(pdev); 13722 return 0; 13723 13724 init_err_cleanup: 13725 bnxt_dl_unregister(bp); 13726 init_err_dl: 13727 bnxt_shutdown_tc(bp); 13728 bnxt_clear_int_mode(bp); 13729 13730 init_err_pci_clean: 13731 bnxt_hwrm_func_drv_unrgtr(bp); 13732 bnxt_free_hwrm_resources(bp); 13733 bnxt_ethtool_free(bp); 13734 bnxt_ptp_clear(bp); 13735 kfree(bp->ptp_cfg); 13736 bp->ptp_cfg = NULL; 13737 kfree(bp->fw_health); 13738 bp->fw_health = NULL; 13739 bnxt_cleanup_pci(bp); 13740 bnxt_free_ctx_mem(bp); 13741 kfree(bp->ctx); 13742 bp->ctx = NULL; 13743 kfree(bp->rss_indir_tbl); 13744 bp->rss_indir_tbl = NULL; 13745 13746 init_err_free: 13747 free_netdev(dev); 13748 return rc; 13749 } 13750 13751 static void bnxt_shutdown(struct pci_dev *pdev) 13752 { 13753 struct net_device *dev = pci_get_drvdata(pdev); 13754 struct bnxt *bp; 13755 13756 if (!dev) 13757 return; 13758 13759 rtnl_lock(); 13760 bp = netdev_priv(dev); 13761 if (!bp) 13762 goto shutdown_exit; 13763 13764 if (netif_running(dev)) 13765 dev_close(dev); 13766 13767 bnxt_ulp_shutdown(bp); 13768 bnxt_clear_int_mode(bp); 13769 pci_disable_device(pdev); 13770 13771 if (system_state == SYSTEM_POWER_OFF) { 13772 pci_wake_from_d3(pdev, bp->wol); 13773 pci_set_power_state(pdev, PCI_D3hot); 13774 } 13775 13776 shutdown_exit: 13777 rtnl_unlock(); 13778 } 13779 13780 #ifdef CONFIG_PM_SLEEP 13781 static int bnxt_suspend(struct device *device) 13782 { 13783 struct net_device *dev = dev_get_drvdata(device); 13784 struct bnxt *bp = netdev_priv(dev); 13785 int rc = 0; 13786 13787 rtnl_lock(); 13788 bnxt_ulp_stop(bp); 13789 if (netif_running(dev)) { 13790 netif_device_detach(dev); 13791 rc = bnxt_close(dev); 13792 } 13793 bnxt_hwrm_func_drv_unrgtr(bp); 13794 pci_disable_device(bp->pdev); 13795 bnxt_free_ctx_mem(bp); 13796 kfree(bp->ctx); 13797 bp->ctx = NULL; 13798 rtnl_unlock(); 13799 return rc; 13800 } 13801 13802 static int bnxt_resume(struct device *device) 13803 { 13804 struct net_device *dev = dev_get_drvdata(device); 13805 struct bnxt *bp = netdev_priv(dev); 13806 int rc = 0; 13807 13808 rtnl_lock(); 13809 rc = pci_enable_device(bp->pdev); 13810 if (rc) { 13811 netdev_err(dev, "Cannot re-enable PCI device during resume, err = %d\n", 13812 rc); 13813 goto resume_exit; 13814 } 13815 pci_set_master(bp->pdev); 13816 if (bnxt_hwrm_ver_get(bp)) { 13817 rc = -ENODEV; 13818 goto resume_exit; 13819 } 13820 rc = bnxt_hwrm_func_reset(bp); 13821 if (rc) { 13822 rc = -EBUSY; 13823 goto resume_exit; 13824 } 13825 13826 rc = bnxt_hwrm_func_qcaps(bp); 13827 if (rc) 13828 goto resume_exit; 13829 13830 if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) { 13831 rc = -ENODEV; 13832 goto resume_exit; 13833 } 13834 13835 bnxt_get_wol_settings(bp); 13836 if (netif_running(dev)) { 13837 rc = bnxt_open(dev); 13838 if (!rc) 13839 netif_device_attach(dev); 13840 } 13841 13842 resume_exit: 13843 bnxt_ulp_start(bp, rc); 13844 if (!rc) 13845 bnxt_reenable_sriov(bp); 13846 rtnl_unlock(); 13847 return rc; 13848 } 13849 13850 static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume); 13851 #define BNXT_PM_OPS (&bnxt_pm_ops) 13852 13853 #else 13854 13855 #define BNXT_PM_OPS NULL 13856 13857 #endif /* CONFIG_PM_SLEEP */ 13858 13859 /** 13860 * bnxt_io_error_detected - called when PCI error is detected 13861 * @pdev: Pointer to PCI device 13862 * @state: The current pci connection state 13863 * 13864 * This function is called after a PCI bus error affecting 13865 * this device has been detected. 13866 */ 13867 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev, 13868 pci_channel_state_t state) 13869 { 13870 struct net_device *netdev = pci_get_drvdata(pdev); 13871 struct bnxt *bp = netdev_priv(netdev); 13872 13873 netdev_info(netdev, "PCI I/O error detected\n"); 13874 13875 rtnl_lock(); 13876 netif_device_detach(netdev); 13877 13878 bnxt_ulp_stop(bp); 13879 13880 if (state == pci_channel_io_perm_failure) { 13881 rtnl_unlock(); 13882 return PCI_ERS_RESULT_DISCONNECT; 13883 } 13884 13885 if (state == pci_channel_io_frozen) 13886 set_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state); 13887 13888 if (netif_running(netdev)) 13889 bnxt_close(netdev); 13890 13891 if (pci_is_enabled(pdev)) 13892 pci_disable_device(pdev); 13893 bnxt_free_ctx_mem(bp); 13894 kfree(bp->ctx); 13895 bp->ctx = NULL; 13896 rtnl_unlock(); 13897 13898 /* Request a slot slot reset. */ 13899 return PCI_ERS_RESULT_NEED_RESET; 13900 } 13901 13902 /** 13903 * bnxt_io_slot_reset - called after the pci bus has been reset. 13904 * @pdev: Pointer to PCI device 13905 * 13906 * Restart the card from scratch, as if from a cold-boot. 13907 * At this point, the card has exprienced a hard reset, 13908 * followed by fixups by BIOS, and has its config space 13909 * set up identically to what it was at cold boot. 13910 */ 13911 static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev) 13912 { 13913 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT; 13914 struct net_device *netdev = pci_get_drvdata(pdev); 13915 struct bnxt *bp = netdev_priv(netdev); 13916 int err = 0, off; 13917 13918 netdev_info(bp->dev, "PCI Slot Reset\n"); 13919 13920 rtnl_lock(); 13921 13922 if (pci_enable_device(pdev)) { 13923 dev_err(&pdev->dev, 13924 "Cannot re-enable PCI device after reset.\n"); 13925 } else { 13926 pci_set_master(pdev); 13927 /* Upon fatal error, our device internal logic that latches to 13928 * BAR value is getting reset and will restore only upon 13929 * rewritting the BARs. 13930 * 13931 * As pci_restore_state() does not re-write the BARs if the 13932 * value is same as saved value earlier, driver needs to 13933 * write the BARs to 0 to force restore, in case of fatal error. 13934 */ 13935 if (test_and_clear_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, 13936 &bp->state)) { 13937 for (off = PCI_BASE_ADDRESS_0; 13938 off <= PCI_BASE_ADDRESS_5; off += 4) 13939 pci_write_config_dword(bp->pdev, off, 0); 13940 } 13941 pci_restore_state(pdev); 13942 pci_save_state(pdev); 13943 13944 err = bnxt_hwrm_func_reset(bp); 13945 if (!err) 13946 result = PCI_ERS_RESULT_RECOVERED; 13947 } 13948 13949 rtnl_unlock(); 13950 13951 return result; 13952 } 13953 13954 /** 13955 * bnxt_io_resume - called when traffic can start flowing again. 13956 * @pdev: Pointer to PCI device 13957 * 13958 * This callback is called when the error recovery driver tells 13959 * us that its OK to resume normal operation. 13960 */ 13961 static void bnxt_io_resume(struct pci_dev *pdev) 13962 { 13963 struct net_device *netdev = pci_get_drvdata(pdev); 13964 struct bnxt *bp = netdev_priv(netdev); 13965 int err; 13966 13967 netdev_info(bp->dev, "PCI Slot Resume\n"); 13968 rtnl_lock(); 13969 13970 err = bnxt_hwrm_func_qcaps(bp); 13971 if (!err && netif_running(netdev)) 13972 err = bnxt_open(netdev); 13973 13974 bnxt_ulp_start(bp, err); 13975 if (!err) { 13976 bnxt_reenable_sriov(bp); 13977 netif_device_attach(netdev); 13978 } 13979 13980 rtnl_unlock(); 13981 } 13982 13983 static const struct pci_error_handlers bnxt_err_handler = { 13984 .error_detected = bnxt_io_error_detected, 13985 .slot_reset = bnxt_io_slot_reset, 13986 .resume = bnxt_io_resume 13987 }; 13988 13989 static struct pci_driver bnxt_pci_driver = { 13990 .name = DRV_MODULE_NAME, 13991 .id_table = bnxt_pci_tbl, 13992 .probe = bnxt_init_one, 13993 .remove = bnxt_remove_one, 13994 .shutdown = bnxt_shutdown, 13995 .driver.pm = BNXT_PM_OPS, 13996 .err_handler = &bnxt_err_handler, 13997 #if defined(CONFIG_BNXT_SRIOV) 13998 .sriov_configure = bnxt_sriov_configure, 13999 #endif 14000 }; 14001 14002 static int __init bnxt_init(void) 14003 { 14004 bnxt_debug_init(); 14005 return pci_register_driver(&bnxt_pci_driver); 14006 } 14007 14008 static void __exit bnxt_exit(void) 14009 { 14010 pci_unregister_driver(&bnxt_pci_driver); 14011 if (bnxt_pf_wq) 14012 destroy_workqueue(bnxt_pf_wq); 14013 bnxt_debug_exit(); 14014 } 14015 14016 module_init(bnxt_init); 14017 module_exit(bnxt_exit); 14018