1 #ifndef _OPA_VNIC_INTERNAL_H 2 #define _OPA_VNIC_INTERNAL_H 3 /* 4 * Copyright(c) 2017 Intel Corporation. 5 * 6 * This file is provided under a dual BSD/GPLv2 license. When using or 7 * redistributing this file, you may do so under either license. 8 * 9 * GPL LICENSE SUMMARY 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * BSD LICENSE 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 26 * - Redistributions of source code must retain the above copyright 27 * notice, this list of conditions and the following disclaimer. 28 * - Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in 30 * the documentation and/or other materials provided with the 31 * distribution. 32 * - Neither the name of Intel Corporation nor the names of its 33 * contributors may be used to endorse or promote products derived 34 * from this software without specific prior written permission. 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 37 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 38 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 39 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 40 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 43 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 44 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 45 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 46 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 47 * 48 */ 49 50 /* 51 * This file contains OPA VNIC driver internal declarations 52 */ 53 54 #include <linux/bitops.h> 55 #include <linux/etherdevice.h> 56 #include <linux/hashtable.h> 57 #include <linux/sizes.h> 58 #include <rdma/opa_vnic.h> 59 60 #include "opa_vnic_encap.h" 61 62 #define OPA_VNIC_VLAN_PCP(vlan_tci) \ 63 (((vlan_tci) & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT) 64 65 /* Flow to default port redirection table size */ 66 #define OPA_VNIC_FLOW_TBL_SIZE 32 67 68 /* Invalid port number */ 69 #define OPA_VNIC_INVALID_PORT 0xff 70 71 struct opa_vnic_adapter; 72 73 /** 74 * struct __opa_vesw_info - OPA vnic virtual switch info 75 * 76 * Same as opa_vesw_info without bitwise attribute. 77 */ 78 struct __opa_vesw_info { 79 u16 fabric_id; 80 u16 vesw_id; 81 82 u8 rsvd0[6]; 83 u16 def_port_mask; 84 85 u8 rsvd1[2]; 86 u16 pkey; 87 88 u8 rsvd2[4]; 89 u32 u_mcast_dlid; 90 u32 u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT]; 91 92 u32 rc; 93 94 u8 rsvd3[56]; 95 u16 eth_mtu; 96 u8 rsvd4[2]; 97 } __packed; 98 99 /** 100 * struct __opa_per_veswport_info - OPA vnic per port info 101 * 102 * Same as opa_per_veswport_info without bitwise attribute. 103 */ 104 struct __opa_per_veswport_info { 105 u32 port_num; 106 107 u8 eth_link_status; 108 u8 rsvd0[3]; 109 110 u8 base_mac_addr[ETH_ALEN]; 111 u8 config_state; 112 u8 oper_state; 113 114 u16 max_mac_tbl_ent; 115 u16 max_smac_ent; 116 u32 mac_tbl_digest; 117 u8 rsvd1[4]; 118 119 u32 encap_slid; 120 121 u8 pcp_to_sc_uc[OPA_VNIC_MAX_NUM_PCP]; 122 u8 pcp_to_vl_uc[OPA_VNIC_MAX_NUM_PCP]; 123 u8 pcp_to_sc_mc[OPA_VNIC_MAX_NUM_PCP]; 124 u8 pcp_to_vl_mc[OPA_VNIC_MAX_NUM_PCP]; 125 126 u8 non_vlan_sc_uc; 127 u8 non_vlan_vl_uc; 128 u8 non_vlan_sc_mc; 129 u8 non_vlan_vl_mc; 130 131 u8 rsvd2[48]; 132 133 u16 uc_macs_gen_count; 134 u16 mc_macs_gen_count; 135 136 u8 rsvd3[8]; 137 } __packed; 138 139 /** 140 * struct __opa_veswport_info - OPA vnic port info 141 * 142 * Same as opa_veswport_info without bitwise attribute. 143 */ 144 struct __opa_veswport_info { 145 struct __opa_vesw_info vesw; 146 struct __opa_per_veswport_info vport; 147 }; 148 149 /** 150 * struct __opa_veswport_trap - OPA vnic trap info 151 * 152 * Same as opa_veswport_trap without bitwise attribute. 153 */ 154 struct __opa_veswport_trap { 155 u16 fabric_id; 156 u16 veswid; 157 u32 veswportnum; 158 u16 opaportnum; 159 u8 veswportindex; 160 u8 opcode; 161 u32 reserved; 162 } __packed; 163 164 /** 165 * struct opa_vnic_ctrl_port - OPA virtual NIC control port 166 * @ibdev: pointer to ib device 167 * @ops: opa vnic control operations 168 * @num_ports: number of opa ports 169 */ 170 struct opa_vnic_ctrl_port { 171 struct ib_device *ibdev; 172 struct opa_vnic_ctrl_ops *ops; 173 u8 num_ports; 174 }; 175 176 /** 177 * struct opa_vnic_adapter - OPA VNIC netdev private data structure 178 * @netdev: pointer to associated netdev 179 * @ibdev: ib device 180 * @cport: pointer to opa vnic control port 181 * @rn_ops: rdma netdev's net_device_ops 182 * @port_num: OPA port number 183 * @vport_num: vesw port number 184 * @lock: adapter lock 185 * @info: virtual ethernet switch port information 186 * @vema_mac_addr: mac address configured by vema 187 * @umac_hash: unicast maclist hash 188 * @mmac_hash: multicast maclist hash 189 * @mactbl: hash table of MAC entries 190 * @mactbl_lock: mac table lock 191 * @stats_lock: statistics lock 192 * @flow_tbl: flow to default port redirection table 193 * @trap_timeout: trap timeout 194 * @trap_count: no. of traps allowed within timeout period 195 */ 196 struct opa_vnic_adapter { 197 struct net_device *netdev; 198 struct ib_device *ibdev; 199 struct opa_vnic_ctrl_port *cport; 200 const struct net_device_ops *rn_ops; 201 202 u8 port_num; 203 u8 vport_num; 204 205 /* Lock used around concurrent updates to netdev */ 206 struct mutex lock; 207 208 struct __opa_veswport_info info; 209 u8 vema_mac_addr[ETH_ALEN]; 210 u32 umac_hash; 211 u32 mmac_hash; 212 struct hlist_head __rcu *mactbl; 213 214 /* Lock used to protect updates to mac table */ 215 struct mutex mactbl_lock; 216 217 /* Lock used to protect access to vnic counters */ 218 spinlock_t stats_lock; 219 220 u8 flow_tbl[OPA_VNIC_FLOW_TBL_SIZE]; 221 222 unsigned long trap_timeout; 223 u8 trap_count; 224 }; 225 226 /* Same as opa_veswport_mactable_entry, but without bitwise attribute */ 227 struct __opa_vnic_mactable_entry { 228 u8 mac_addr[ETH_ALEN]; 229 u8 mac_addr_mask[ETH_ALEN]; 230 u32 dlid_sd; 231 } __packed; 232 233 /** 234 * struct opa_vnic_mac_tbl_node - OPA VNIC mac table node 235 * @hlist: hash list handle 236 * @index: index of entry in the mac table 237 * @entry: entry in the table 238 */ 239 struct opa_vnic_mac_tbl_node { 240 struct hlist_node hlist; 241 u16 index; 242 struct __opa_vnic_mactable_entry entry; 243 }; 244 245 #define v_dbg(format, arg...) \ 246 netdev_dbg(adapter->netdev, format, ## arg) 247 #define v_err(format, arg...) \ 248 netdev_err(adapter->netdev, format, ## arg) 249 #define v_info(format, arg...) \ 250 netdev_info(adapter->netdev, format, ## arg) 251 #define v_warn(format, arg...) \ 252 netdev_warn(adapter->netdev, format, ## arg) 253 254 #define c_err(format, arg...) \ 255 dev_err(&cport->ibdev->dev, format, ## arg) 256 #define c_info(format, arg...) \ 257 dev_info(&cport->ibdev->dev, format, ## arg) 258 #define c_dbg(format, arg...) \ 259 dev_dbg(&cport->ibdev->dev, format, ## arg) 260 261 /* The maximum allowed entries in the mac table */ 262 #define OPA_VNIC_MAC_TBL_MAX_ENTRIES 2048 263 /* Limit of smac entries in mac table */ 264 #define OPA_VNIC_MAX_SMAC_LIMIT 256 265 266 /* The last octet of the MAC address is used as the key to the hash table */ 267 #define OPA_VNIC_MAC_HASH_IDX 5 268 269 /* The VNIC MAC hash table is of size 2^8 */ 270 #define OPA_VNIC_MAC_TBL_HASH_BITS 8 271 #define OPA_VNIC_MAC_TBL_SIZE BIT(OPA_VNIC_MAC_TBL_HASH_BITS) 272 273 /* VNIC HASH MACROS */ 274 #define vnic_hash_init(hashtable) __hash_init(hashtable, OPA_VNIC_MAC_TBL_SIZE) 275 276 #define vnic_hash_add(hashtable, node, key) \ 277 hlist_add_head(node, \ 278 &hashtable[hash_min(key, ilog2(OPA_VNIC_MAC_TBL_SIZE))]) 279 280 #define vnic_hash_for_each_safe(name, bkt, tmp, obj, member) \ 281 for ((bkt) = 0, obj = NULL; \ 282 !obj && (bkt) < OPA_VNIC_MAC_TBL_SIZE; (bkt)++) \ 283 hlist_for_each_entry_safe(obj, tmp, &name[bkt], member) 284 285 #define vnic_hash_for_each_possible(name, obj, member, key) \ 286 hlist_for_each_entry(obj, \ 287 &name[hash_min(key, ilog2(OPA_VNIC_MAC_TBL_SIZE))], member) 288 289 #define vnic_hash_for_each(name, bkt, obj, member) \ 290 for ((bkt) = 0, obj = NULL; \ 291 !obj && (bkt) < OPA_VNIC_MAC_TBL_SIZE; (bkt)++) \ 292 hlist_for_each_entry(obj, &name[bkt], member) 293 294 extern char opa_vnic_driver_name[]; 295 extern const char opa_vnic_driver_version[]; 296 297 struct opa_vnic_adapter *opa_vnic_add_netdev(struct ib_device *ibdev, 298 u8 port_num, u8 vport_num); 299 void opa_vnic_rem_netdev(struct opa_vnic_adapter *adapter); 300 void opa_vnic_encap_skb(struct opa_vnic_adapter *adapter, struct sk_buff *skb); 301 u8 opa_vnic_get_vl(struct opa_vnic_adapter *adapter, struct sk_buff *skb); 302 u8 opa_vnic_calc_entropy(struct sk_buff *skb); 303 void opa_vnic_process_vema_config(struct opa_vnic_adapter *adapter); 304 void opa_vnic_release_mac_tbl(struct opa_vnic_adapter *adapter); 305 void opa_vnic_query_mac_tbl(struct opa_vnic_adapter *adapter, 306 struct opa_veswport_mactable *tbl); 307 int opa_vnic_update_mac_tbl(struct opa_vnic_adapter *adapter, 308 struct opa_veswport_mactable *tbl); 309 void opa_vnic_query_ucast_macs(struct opa_vnic_adapter *adapter, 310 struct opa_veswport_iface_macs *macs); 311 void opa_vnic_query_mcast_macs(struct opa_vnic_adapter *adapter, 312 struct opa_veswport_iface_macs *macs); 313 void opa_vnic_get_summary_counters(struct opa_vnic_adapter *adapter, 314 struct opa_veswport_summary_counters *cntrs); 315 void opa_vnic_get_error_counters(struct opa_vnic_adapter *adapter, 316 struct opa_veswport_error_counters *cntrs); 317 void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter, 318 struct opa_vesw_info *info); 319 void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter, 320 struct opa_vesw_info *info); 321 void opa_vnic_get_per_veswport_info(struct opa_vnic_adapter *adapter, 322 struct opa_per_veswport_info *info); 323 void opa_vnic_set_per_veswport_info(struct opa_vnic_adapter *adapter, 324 struct opa_per_veswport_info *info); 325 void opa_vnic_vema_report_event(struct opa_vnic_adapter *adapter, u8 event); 326 void opa_vnic_set_ethtool_ops(struct net_device *netdev); 327 void opa_vnic_vema_send_trap(struct opa_vnic_adapter *adapter, 328 struct __opa_veswport_trap *data, u32 lid); 329 330 #endif /* _OPA_VNIC_INTERNAL_H */ 331