xref: /freebsd/sys/dev/cxgbe/adapter.h (revision 6419bb52)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2011 Chelsio Communications, Inc.
5  * All rights reserved.
6  * Written by: Navdeep Parhar <np@FreeBSD.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  *
31  */
32 
33 #ifndef __T4_ADAPTER_H__
34 #define __T4_ADAPTER_H__
35 
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/counter.h>
39 #include <sys/rman.h>
40 #include <sys/types.h>
41 #include <sys/lock.h>
42 #include <sys/malloc.h>
43 #include <sys/rwlock.h>
44 #include <sys/sx.h>
45 #include <sys/vmem.h>
46 #include <vm/uma.h>
47 
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include <machine/bus.h>
51 #include <sys/socket.h>
52 #include <sys/sysctl.h>
53 #include <net/ethernet.h>
54 #include <net/if.h>
55 #include <net/if_var.h>
56 #include <net/if_media.h>
57 #include <net/pfil.h>
58 #include <netinet/in.h>
59 #include <netinet/tcp_lro.h>
60 
61 #include "offload.h"
62 #include "t4_ioctl.h"
63 #include "common/t4_msg.h"
64 #include "firmware/t4fw_interface.h"
65 
66 #define KTR_CXGBE	KTR_SPARE3
67 MALLOC_DECLARE(M_CXGBE);
68 #define CXGBE_UNIMPLEMENTED(s) \
69     panic("%s (%s, line %d) not implemented yet.", s, __FILE__, __LINE__)
70 
71 #if defined(__i386__) || defined(__amd64__)
72 static __inline void
73 prefetch(void *x)
74 {
75 	__asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
76 }
77 #else
78 #define prefetch(x) __builtin_prefetch(x)
79 #endif
80 
81 #ifndef SYSCTL_ADD_UQUAD
82 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
83 #define sysctl_handle_64 sysctl_handle_quad
84 #define CTLTYPE_U64 CTLTYPE_QUAD
85 #endif
86 
87 SYSCTL_DECL(_hw_cxgbe);
88 
89 struct adapter;
90 typedef struct adapter adapter_t;
91 
92 enum {
93 	/*
94 	 * All ingress queues use this entry size.  Note that the firmware event
95 	 * queue and any iq expecting CPL_RX_PKT in the descriptor needs this to
96 	 * be at least 64.
97 	 */
98 	IQ_ESIZE = 64,
99 
100 	/* Default queue sizes for all kinds of ingress queues */
101 	FW_IQ_QSIZE = 256,
102 	RX_IQ_QSIZE = 1024,
103 
104 	/* All egress queues use this entry size */
105 	EQ_ESIZE = 64,
106 
107 	/* Default queue sizes for all kinds of egress queues */
108 	CTRL_EQ_QSIZE = 1024,
109 	TX_EQ_QSIZE = 1024,
110 
111 #if MJUMPAGESIZE != MCLBYTES
112 	SW_ZONE_SIZES = 4,	/* cluster, jumbop, jumbo9k, jumbo16k */
113 #else
114 	SW_ZONE_SIZES = 3,	/* cluster, jumbo9k, jumbo16k */
115 #endif
116 	CL_METADATA_SIZE = CACHE_LINE_SIZE,
117 
118 	SGE_MAX_WR_NDESC = SGE_MAX_WR_LEN / EQ_ESIZE, /* max WR size in desc */
119 	TX_SGL_SEGS = 39,
120 	TX_SGL_SEGS_TSO = 38,
121 	TX_SGL_SEGS_EO_TSO = 30,	/* XXX: lower for IPv6. */
122 	TX_WR_FLITS = SGE_MAX_WR_LEN / 8
123 };
124 
125 enum {
126 	/* adapter intr_type */
127 	INTR_INTX	= (1 << 0),
128 	INTR_MSI 	= (1 << 1),
129 	INTR_MSIX	= (1 << 2)
130 };
131 
132 enum {
133 	XGMAC_MTU	= (1 << 0),
134 	XGMAC_PROMISC	= (1 << 1),
135 	XGMAC_ALLMULTI	= (1 << 2),
136 	XGMAC_VLANEX	= (1 << 3),
137 	XGMAC_UCADDR	= (1 << 4),
138 	XGMAC_MCADDRS	= (1 << 5),
139 
140 	XGMAC_ALL	= 0xffff
141 };
142 
143 enum {
144 	/* flags understood by begin_synchronized_op */
145 	HOLD_LOCK	= (1 << 0),
146 	SLEEP_OK	= (1 << 1),
147 	INTR_OK		= (1 << 2),
148 
149 	/* flags understood by end_synchronized_op */
150 	LOCK_HELD	= HOLD_LOCK,
151 };
152 
153 enum {
154 	/* adapter flags */
155 	FULL_INIT_DONE	= (1 << 0),
156 	FW_OK		= (1 << 1),
157 	CHK_MBOX_ACCESS	= (1 << 2),
158 	MASTER_PF	= (1 << 3),
159 	ADAP_SYSCTL_CTX	= (1 << 4),
160 	ADAP_ERR	= (1 << 5),
161 	BUF_PACKING_OK	= (1 << 6),
162 	IS_VF		= (1 << 7),
163 	KERN_TLS_OK	= (1 << 8),
164 
165 	CXGBE_BUSY	= (1 << 9),
166 
167 	/* port flags */
168 	HAS_TRACEQ	= (1 << 3),
169 	FIXED_IFMEDIA	= (1 << 4),	/* ifmedia list doesn't change. */
170 
171 	/* VI flags */
172 	DOOMED		= (1 << 0),
173 	VI_INIT_DONE	= (1 << 1),
174 	VI_SYSCTL_CTX	= (1 << 2),
175 
176 	/* adapter debug_flags */
177 	DF_DUMP_MBOX		= (1 << 0),	/* Log all mbox cmd/rpl. */
178 	DF_LOAD_FW_ANYTIME	= (1 << 1),	/* Allow LOAD_FW after init */
179 	DF_DISABLE_TCB_CACHE	= (1 << 2),	/* Disable TCB cache (T6+) */
180 	DF_DISABLE_CFG_RETRY	= (1 << 3),	/* Disable fallback config */
181 	DF_VERBOSE_SLOWINTR	= (1 << 4),	/* Chatty slow intr handler */
182 };
183 
184 #define IS_DOOMED(vi)	((vi)->flags & DOOMED)
185 #define SET_DOOMED(vi)	do {(vi)->flags |= DOOMED;} while (0)
186 #define IS_BUSY(sc)	((sc)->flags & CXGBE_BUSY)
187 #define SET_BUSY(sc)	do {(sc)->flags |= CXGBE_BUSY;} while (0)
188 #define CLR_BUSY(sc)	do {(sc)->flags &= ~CXGBE_BUSY;} while (0)
189 
190 struct vi_info {
191 	device_t dev;
192 	struct port_info *pi;
193 
194 	struct ifnet *ifp;
195 	struct pfil_head *pfil;
196 
197 	unsigned long flags;
198 	int if_flags;
199 
200 	uint16_t *rss, *nm_rss;
201 	uint16_t viid;		/* opaque VI identifier */
202 	uint16_t smt_idx;
203 	uint16_t vin;
204 	uint8_t vfvld;
205 	int16_t  xact_addr_filt;/* index of exact MAC address filter */
206 	uint16_t rss_size;	/* size of VI's RSS table slice */
207 	uint16_t rss_base;	/* start of VI's RSS table slice */
208 	int hashen;
209 
210 	int nintr;
211 	int first_intr;
212 
213 	/* These need to be int as they are used in sysctl */
214 	int ntxq;		/* # of tx queues */
215 	int first_txq;		/* index of first tx queue */
216 	int rsrv_noflowq; 	/* Reserve queue 0 for non-flowid packets */
217 	int nrxq;		/* # of rx queues */
218 	int first_rxq;		/* index of first rx queue */
219 	int nofldtxq;		/* # of offload tx queues */
220 	int first_ofld_txq;	/* index of first offload tx queue */
221 	int nofldrxq;		/* # of offload rx queues */
222 	int first_ofld_rxq;	/* index of first offload rx queue */
223 	int nnmtxq;
224 	int first_nm_txq;
225 	int nnmrxq;
226 	int first_nm_rxq;
227 	int tmr_idx;
228 	int ofld_tmr_idx;
229 	int pktc_idx;
230 	int ofld_pktc_idx;
231 	int qsize_rxq;
232 	int qsize_txq;
233 
234 	struct timeval last_refreshed;
235 	struct fw_vi_stats_vf stats;
236 
237 	struct callout tick;
238 	struct sysctl_ctx_list ctx;	/* from ifconfig up to driver detach */
239 
240 	uint8_t hw_addr[ETHER_ADDR_LEN]; /* factory MAC address, won't change */
241 };
242 
243 struct tx_ch_rl_params {
244 	enum fw_sched_params_rate ratemode;	/* %port (REL) or kbps (ABS) */
245 	uint32_t maxrate;
246 };
247 
248 enum {
249 	CLRL_USER	= (1 << 0),	/* allocated manually. */
250 	CLRL_SYNC	= (1 << 1),	/* sync hw update in progress. */
251 	CLRL_ASYNC	= (1 << 2),	/* async hw update requested. */
252 	CLRL_ERR	= (1 << 3),	/* last hw setup ended in error. */
253 };
254 
255 struct tx_cl_rl_params {
256 	int refcount;
257 	uint8_t flags;
258 	enum fw_sched_params_rate ratemode;	/* %port REL or ABS value */
259 	enum fw_sched_params_unit rateunit;	/* kbps or pps (when ABS) */
260 	enum fw_sched_params_mode mode;		/* aggr or per-flow */
261 	uint32_t maxrate;
262 	uint16_t pktsize;
263 	uint16_t burstsize;
264 };
265 
266 /* Tx scheduler parameters for a channel/port */
267 struct tx_sched_params {
268 	/* Channel Rate Limiter */
269 	struct tx_ch_rl_params ch_rl;
270 
271 	/* Class WRR */
272 	/* XXX */
273 
274 	/* Class Rate Limiter (including the default pktsize and burstsize). */
275 	int pktsize;
276 	int burstsize;
277 	struct tx_cl_rl_params cl_rl[];
278 };
279 
280 struct port_info {
281 	device_t dev;
282 	struct adapter *adapter;
283 
284 	struct vi_info *vi;
285 	int nvi;
286 	int up_vis;
287 	int uld_vis;
288 
289 	struct tx_sched_params *sched_params;
290 
291 	struct mtx pi_lock;
292 	char lockname[16];
293 	unsigned long flags;
294 
295 	uint8_t  lport;		/* associated offload logical port */
296 	int8_t   mdio_addr;
297 	uint8_t  port_type;
298 	uint8_t  mod_type;
299 	uint8_t  port_id;
300 	uint8_t  tx_chan;
301 	uint8_t  mps_bg_map;	/* rx MPS buffer group bitmap */
302 	uint8_t  rx_e_chan_map;	/* rx TP e-channel bitmap */
303 
304 	struct link_config link_cfg;
305 	struct ifmedia media;
306 
307 	struct timeval last_refreshed;
308  	struct port_stats stats;
309 	u_int tnl_cong_drops;
310 	u_int tx_parse_error;
311 	u_long	tx_toe_tls_records;
312 	u_long	tx_toe_tls_octets;
313 	u_long	rx_toe_tls_records;
314 	u_long	rx_toe_tls_octets;
315 
316 	struct callout tick;
317 };
318 
319 #define	IS_MAIN_VI(vi)		((vi) == &((vi)->pi->vi[0]))
320 
321 struct cluster_metadata {
322 	uma_zone_t zone;
323 	caddr_t cl;
324 	u_int refcount;
325 };
326 
327 struct fl_sdesc {
328 	caddr_t cl;
329 	uint16_t nmbuf;	/* # of driver originated mbufs with ref on cluster */
330 	int16_t moff;	/* offset of metadata from cl */
331 	uint8_t zidx;
332 };
333 
334 struct tx_desc {
335 	__be64 flit[8];
336 };
337 
338 struct tx_sdesc {
339 	struct mbuf *m;		/* m_nextpkt linked chain of frames */
340 	uint8_t desc_used;	/* # of hardware descriptors used by the WR */
341 };
342 
343 
344 #define IQ_PAD (IQ_ESIZE - sizeof(struct rsp_ctrl) - sizeof(struct rss_header))
345 struct iq_desc {
346 	struct rss_header rss;
347 	uint8_t cpl[IQ_PAD];
348 	struct rsp_ctrl rsp;
349 };
350 #undef IQ_PAD
351 CTASSERT(sizeof(struct iq_desc) == IQ_ESIZE);
352 
353 enum {
354 	/* iq flags */
355 	IQ_ALLOCATED	= (1 << 0),	/* firmware resources allocated */
356 	IQ_HAS_FL	= (1 << 1),	/* iq associated with a freelist */
357 	IQ_RX_TIMESTAMP	= (1 << 2),	/* provide the SGE rx timestamp */
358 	IQ_LRO_ENABLED	= (1 << 3),	/* iq is an eth rxq with LRO enabled */
359 	IQ_ADJ_CREDIT	= (1 << 4),	/* hw is off by 1 credit for this iq */
360 
361 	/* iq state */
362 	IQS_DISABLED	= 0,
363 	IQS_BUSY	= 1,
364 	IQS_IDLE	= 2,
365 
366 	/* netmap related flags */
367 	NM_OFF	= 0,
368 	NM_ON	= 1,
369 	NM_BUSY	= 2,
370 };
371 
372 enum {
373 	CPL_COOKIE_RESERVED = 0,
374 	CPL_COOKIE_FILTER,
375 	CPL_COOKIE_DDP0,
376 	CPL_COOKIE_DDP1,
377 	CPL_COOKIE_TOM,
378 	CPL_COOKIE_HASHFILTER,
379 	CPL_COOKIE_ETHOFLD,
380 	CPL_COOKIE_KERN_TLS,
381 
382 	NUM_CPL_COOKIES = 8	/* Limited by M_COOKIE.  Do not increase. */
383 };
384 
385 struct sge_iq;
386 struct rss_header;
387 typedef int (*cpl_handler_t)(struct sge_iq *, const struct rss_header *,
388     struct mbuf *);
389 typedef int (*an_handler_t)(struct sge_iq *, const struct rsp_ctrl *);
390 typedef int (*fw_msg_handler_t)(struct adapter *, const __be64 *);
391 
392 /*
393  * Ingress Queue: T4 is producer, driver is consumer.
394  */
395 struct sge_iq {
396 	uint32_t flags;
397 	volatile int state;
398 	struct adapter *adapter;
399 	struct iq_desc  *desc;	/* KVA of descriptor ring */
400 	int8_t   intr_pktc_idx;	/* packet count threshold index */
401 	uint8_t  gen;		/* generation bit */
402 	uint8_t  intr_params;	/* interrupt holdoff parameters */
403 	uint8_t  intr_next;	/* XXX: holdoff for next interrupt */
404 	uint16_t qsize;		/* size (# of entries) of the queue */
405 	uint16_t sidx;		/* index of the entry with the status page */
406 	uint16_t cidx;		/* consumer index */
407 	uint16_t cntxt_id;	/* SGE context id for the iq */
408 	uint16_t abs_id;	/* absolute SGE id for the iq */
409 
410 	STAILQ_ENTRY(sge_iq) link;
411 
412 	bus_dma_tag_t desc_tag;
413 	bus_dmamap_t desc_map;
414 	bus_addr_t ba;		/* bus address of descriptor ring */
415 };
416 
417 enum {
418 	EQ_CTRL		= 1,
419 	EQ_ETH		= 2,
420 	EQ_OFLD		= 3,
421 
422 	/* eq flags */
423 	EQ_TYPEMASK	= 0x3,		/* 2 lsbits hold the type (see above) */
424 	EQ_ALLOCATED	= (1 << 2),	/* firmware resources allocated */
425 	EQ_ENABLED	= (1 << 3),	/* open for business */
426 	EQ_QFLUSH	= (1 << 4),	/* if_qflush in progress */
427 };
428 
429 /* Listed in order of preference.  Update t4_sysctls too if you change these */
430 enum {DOORBELL_UDB, DOORBELL_WCWR, DOORBELL_UDBWC, DOORBELL_KDB};
431 
432 /*
433  * Egress Queue: driver is producer, T4 is consumer.
434  *
435  * Note: A free list is an egress queue (driver produces the buffers and T4
436  * consumes them) but it's special enough to have its own struct (see sge_fl).
437  */
438 struct sge_eq {
439 	unsigned int flags;	/* MUST be first */
440 	unsigned int cntxt_id;	/* SGE context id for the eq */
441 	unsigned int abs_id;	/* absolute SGE id for the eq */
442 	struct mtx eq_lock;
443 
444 	struct tx_desc *desc;	/* KVA of descriptor ring */
445 	uint8_t doorbells;
446 	volatile uint32_t *udb;	/* KVA of doorbell (lies within BAR2) */
447 	u_int udb_qid;		/* relative qid within the doorbell page */
448 	uint16_t sidx;		/* index of the entry with the status page */
449 	uint16_t cidx;		/* consumer idx (desc idx) */
450 	uint16_t pidx;		/* producer idx (desc idx) */
451 	uint16_t equeqidx;	/* EQUEQ last requested at this pidx */
452 	uint16_t dbidx;		/* pidx of the most recent doorbell */
453 	uint16_t iqid;		/* iq that gets egr_update for the eq */
454 	uint8_t tx_chan;	/* tx channel used by the eq */
455 	volatile u_int equiq;	/* EQUIQ outstanding */
456 
457 	bus_dma_tag_t desc_tag;
458 	bus_dmamap_t desc_map;
459 	bus_addr_t ba;		/* bus address of descriptor ring */
460 	char lockname[16];
461 };
462 
463 struct rx_buf_info {
464 	uma_zone_t zone;	/* zone that this cluster comes from */
465 	uint16_t size1;		/* same as size of cluster: 2K/4K/9K/16K.
466 				 * hwsize[hwidx1] = size1.  No spare. */
467 	uint16_t size2;		/* hwsize[hwidx2] = size2.
468 				 * spare in cluster = size1 - size2. */
469 	int8_t hwidx1;		/* SGE bufsize idx for size1 */
470 	int8_t hwidx2;		/* SGE bufsize idx for size2 */
471 	uint8_t type;		/* EXT_xxx type of the cluster */
472 };
473 
474 enum {
475 	NUM_MEMWIN = 3,
476 
477 	MEMWIN0_APERTURE = 2048,
478 	MEMWIN0_BASE     = 0x1b800,
479 
480 	MEMWIN1_APERTURE = 32768,
481 	MEMWIN1_BASE     = 0x28000,
482 
483 	MEMWIN2_APERTURE_T4 = 65536,
484 	MEMWIN2_BASE_T4     = 0x30000,
485 
486 	MEMWIN2_APERTURE_T5 = 128 * 1024,
487 	MEMWIN2_BASE_T5     = 0x60000,
488 };
489 
490 struct memwin {
491 	struct rwlock mw_lock __aligned(CACHE_LINE_SIZE);
492 	uint32_t mw_base;	/* constant after setup_memwin */
493 	uint32_t mw_aperture;	/* ditto */
494 	uint32_t mw_curpos;	/* protected by mw_lock */
495 };
496 
497 enum {
498 	FL_STARVING	= (1 << 0), /* on the adapter's list of starving fl's */
499 	FL_DOOMED	= (1 << 1), /* about to be destroyed */
500 	FL_BUF_PACKING	= (1 << 2), /* buffer packing enabled */
501 	FL_BUF_RESUME	= (1 << 3), /* resume from the middle of the frame */
502 };
503 
504 #define FL_RUNNING_LOW(fl) \
505     (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) <= fl->lowat)
506 #define FL_NOT_RUNNING_LOW(fl) \
507     (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) >= 2 * fl->lowat)
508 
509 struct sge_fl {
510 	struct mtx fl_lock;
511 	__be64 *desc;		/* KVA of descriptor ring, ptr to addresses */
512 	struct fl_sdesc *sdesc;	/* KVA of software descriptor ring */
513 	uint16_t zidx;		/* refill zone idx */
514 	uint16_t safe_zidx;
515 	uint16_t lowat;		/* # of buffers <= this means fl needs help */
516 	int flags;
517 	uint16_t buf_boundary;
518 
519 	/* The 16b idx all deal with hw descriptors */
520 	uint16_t dbidx;		/* hw pidx after last doorbell */
521 	uint16_t sidx;		/* index of status page */
522 	volatile uint16_t hw_cidx;
523 
524 	/* The 32b idx are all buffer idx, not hardware descriptor idx */
525 	uint32_t cidx;		/* consumer index */
526 	uint32_t pidx;		/* producer index */
527 
528 	uint32_t dbval;
529 	u_int rx_offset;	/* offset in fl buf (when buffer packing) */
530 	volatile uint32_t *udb;
531 
532 	uint64_t cl_allocated;	/* # of clusters allocated */
533 	uint64_t cl_recycled;	/* # of clusters recycled */
534 	uint64_t cl_fast_recycled; /* # of clusters recycled (fast) */
535 
536 	/* These 3 are valid when FL_BUF_RESUME is set, stale otherwise. */
537 	struct mbuf *m0;
538 	struct mbuf **pnext;
539 	u_int remaining;
540 
541 	uint16_t qsize;		/* # of hw descriptors (status page included) */
542 	uint16_t cntxt_id;	/* SGE context id for the freelist */
543 	TAILQ_ENTRY(sge_fl) link; /* All starving freelists */
544 	bus_dma_tag_t desc_tag;
545 	bus_dmamap_t desc_map;
546 	char lockname[16];
547 	bus_addr_t ba;		/* bus address of descriptor ring */
548 };
549 
550 struct mp_ring;
551 
552 /* txq: SGE egress queue + what's needed for Ethernet NIC */
553 struct sge_txq {
554 	struct sge_eq eq;	/* MUST be first */
555 
556 	struct ifnet *ifp;	/* the interface this txq belongs to */
557 	struct mp_ring *r;	/* tx software ring */
558 	struct tx_sdesc *sdesc;	/* KVA of software descriptor ring */
559 	struct sglist *gl;
560 	__be32 cpl_ctrl0;	/* for convenience */
561 	int tc_idx;		/* traffic class */
562 
563 	struct task tx_reclaim_task;
564 	/* stats for common events first */
565 
566 	uint64_t txcsum;	/* # of times hardware assisted with checksum */
567 	uint64_t tso_wrs;	/* # of TSO work requests */
568 	uint64_t vlan_insertion;/* # of times VLAN tag was inserted */
569 	uint64_t imm_wrs;	/* # of work requests with immediate data */
570 	uint64_t sgl_wrs;	/* # of work requests with direct SGL */
571 	uint64_t txpkt_wrs;	/* # of txpkt work requests (not coalesced) */
572 	uint64_t txpkts0_wrs;	/* # of type0 coalesced tx work requests */
573 	uint64_t txpkts1_wrs;	/* # of type1 coalesced tx work requests */
574 	uint64_t txpkts0_pkts;	/* # of frames in type0 coalesced tx WRs */
575 	uint64_t txpkts1_pkts;	/* # of frames in type1 coalesced tx WRs */
576 	uint64_t raw_wrs;	/* # of raw work requests (alloc_wr_mbuf) */
577 
578 	uint64_t kern_tls_records;
579 	uint64_t kern_tls_short;
580 	uint64_t kern_tls_partial;
581 	uint64_t kern_tls_full;
582 	uint64_t kern_tls_octets;
583 	uint64_t kern_tls_waste;
584 	uint64_t kern_tls_options;
585 	uint64_t kern_tls_header;
586 	uint64_t kern_tls_fin;
587 	uint64_t kern_tls_fin_short;
588 	uint64_t kern_tls_cbc;
589 	uint64_t kern_tls_gcm;
590 
591 	/* stats for not-that-common events */
592 
593 	/* Optional scratch space for constructing work requests. */
594 	uint8_t ss[SGE_MAX_WR_LEN] __aligned(16);
595 } __aligned(CACHE_LINE_SIZE);
596 
597 /* rxq: SGE ingress queue + SGE free list + miscellaneous items */
598 struct sge_rxq {
599 	struct sge_iq iq;	/* MUST be first */
600 	struct sge_fl fl;	/* MUST follow iq */
601 
602 	struct ifnet *ifp;	/* the interface this rxq belongs to */
603 	struct lro_ctrl lro;	/* LRO state */
604 
605 	/* stats for common events first */
606 
607 	uint64_t rxcsum;	/* # of times hardware assisted with checksum */
608 	uint64_t vlan_extraction;/* # of times VLAN tag was extracted */
609 
610 	/* stats for not-that-common events */
611 
612 } __aligned(CACHE_LINE_SIZE);
613 
614 static inline struct sge_rxq *
615 iq_to_rxq(struct sge_iq *iq)
616 {
617 
618 	return (__containerof(iq, struct sge_rxq, iq));
619 }
620 
621 
622 /* ofld_rxq: SGE ingress queue + SGE free list + miscellaneous items */
623 struct sge_ofld_rxq {
624 	struct sge_iq iq;	/* MUST be first */
625 	struct sge_fl fl;	/* MUST follow iq */
626 } __aligned(CACHE_LINE_SIZE);
627 
628 static inline struct sge_ofld_rxq *
629 iq_to_ofld_rxq(struct sge_iq *iq)
630 {
631 
632 	return (__containerof(iq, struct sge_ofld_rxq, iq));
633 }
634 
635 struct wrqe {
636 	STAILQ_ENTRY(wrqe) link;
637 	struct sge_wrq *wrq;
638 	int wr_len;
639 	char wr[] __aligned(16);
640 };
641 
642 struct wrq_cookie {
643 	TAILQ_ENTRY(wrq_cookie) link;
644 	int ndesc;
645 	int pidx;
646 };
647 
648 /*
649  * wrq: SGE egress queue that is given prebuilt work requests.  Both the control
650  * and offload tx queues are of this type.
651  */
652 struct sge_wrq {
653 	struct sge_eq eq;	/* MUST be first */
654 
655 	struct adapter *adapter;
656 	struct task wrq_tx_task;
657 
658 	/* Tx desc reserved but WR not "committed" yet. */
659 	TAILQ_HEAD(wrq_incomplete_wrs , wrq_cookie) incomplete_wrs;
660 
661 	/* List of WRs ready to go out as soon as descriptors are available. */
662 	STAILQ_HEAD(, wrqe) wr_list;
663 	u_int nwr_pending;
664 	u_int ndesc_needed;
665 
666 	/* stats for common events first */
667 
668 	uint64_t tx_wrs_direct;	/* # of WRs written directly to desc ring. */
669 	uint64_t tx_wrs_ss;	/* # of WRs copied from scratch space. */
670 	uint64_t tx_wrs_copied;	/* # of WRs queued and copied to desc ring. */
671 
672 	/* stats for not-that-common events */
673 
674 	/*
675 	 * Scratch space for work requests that wrap around after reaching the
676 	 * status page, and some information about the last WR that used it.
677 	 */
678 	uint16_t ss_pidx;
679 	uint16_t ss_len;
680 	uint8_t ss[SGE_MAX_WR_LEN];
681 
682 } __aligned(CACHE_LINE_SIZE);
683 
684 #define INVALID_NM_RXQ_CNTXT_ID ((uint16_t)(-1))
685 struct sge_nm_rxq {
686 	/* Items used by the driver rx ithread are in this cacheline. */
687 	volatile int nm_state __aligned(CACHE_LINE_SIZE);	/* NM_OFF, NM_ON, or NM_BUSY */
688 	u_int nid;		/* netmap ring # for this queue */
689 	struct vi_info *vi;
690 
691 	struct iq_desc *iq_desc;
692 	uint16_t iq_abs_id;
693 	uint16_t iq_cntxt_id;
694 	uint16_t iq_cidx;
695 	uint16_t iq_sidx;
696 	uint8_t iq_gen;
697 	uint32_t fl_sidx;
698 
699 	/* Items used by netmap rxsync are in this cacheline. */
700 	__be64  *fl_desc __aligned(CACHE_LINE_SIZE);
701 	uint16_t fl_cntxt_id;
702 	uint32_t fl_pidx;
703 	uint32_t fl_sidx2;	/* copy of fl_sidx */
704 	uint32_t fl_db_val;
705 	u_int fl_db_saved;
706 	u_int fl_hwidx:4;
707 
708 	/*
709 	 * fl_cidx is used by both the ithread and rxsync, the rest are not used
710 	 * in the rx fast path.
711 	 */
712 	uint32_t fl_cidx __aligned(CACHE_LINE_SIZE);
713 
714 	bus_dma_tag_t iq_desc_tag;
715 	bus_dmamap_t iq_desc_map;
716 	bus_addr_t iq_ba;
717 	int intr_idx;
718 
719 	bus_dma_tag_t fl_desc_tag;
720 	bus_dmamap_t fl_desc_map;
721 	bus_addr_t fl_ba;
722 };
723 
724 #define INVALID_NM_TXQ_CNTXT_ID ((u_int)(-1))
725 struct sge_nm_txq {
726 	struct tx_desc *desc;
727 	uint16_t cidx;
728 	uint16_t pidx;
729 	uint16_t sidx;
730 	uint16_t equiqidx;	/* EQUIQ last requested at this pidx */
731 	uint16_t equeqidx;	/* EQUEQ last requested at this pidx */
732 	uint16_t dbidx;		/* pidx of the most recent doorbell */
733 	uint8_t doorbells;
734 	volatile uint32_t *udb;
735 	u_int udb_qid;
736 	u_int cntxt_id;
737 	__be32 cpl_ctrl0;	/* for convenience */
738 	__be32 op_pkd;		/* ditto */
739 	u_int nid;		/* netmap ring # for this queue */
740 
741 	/* infrequently used items after this */
742 
743 	bus_dma_tag_t desc_tag;
744 	bus_dmamap_t desc_map;
745 	bus_addr_t ba;
746 	int iqidx;
747 } __aligned(CACHE_LINE_SIZE);
748 
749 struct sge {
750 	int nrxq;	/* total # of Ethernet rx queues */
751 	int ntxq;	/* total # of Ethernet tx queues */
752 	int nofldrxq;	/* total # of TOE rx queues */
753 	int nofldtxq;	/* total # of TOE tx queues */
754 	int nnmrxq;	/* total # of netmap rx queues */
755 	int nnmtxq;	/* total # of netmap tx queues */
756 	int niq;	/* total # of ingress queues */
757 	int neq;	/* total # of egress queues */
758 
759 	struct sge_iq fwq;	/* Firmware event queue */
760 	struct sge_wrq *ctrlq;	/* Control queues */
761 	struct sge_txq *txq;	/* NIC tx queues */
762 	struct sge_rxq *rxq;	/* NIC rx queues */
763 	struct sge_wrq *ofld_txq;	/* TOE tx queues */
764 	struct sge_ofld_rxq *ofld_rxq;	/* TOE rx queues */
765 	struct sge_nm_txq *nm_txq;	/* netmap tx queues */
766 	struct sge_nm_rxq *nm_rxq;	/* netmap rx queues */
767 
768 	uint16_t iq_start;	/* first cntxt_id */
769 	uint16_t iq_base;	/* first abs_id */
770 	int eq_start;		/* first cntxt_id */
771 	int eq_base;		/* first abs_id */
772 	struct sge_iq **iqmap;	/* iq->cntxt_id to iq mapping */
773 	struct sge_eq **eqmap;	/* eq->cntxt_id to eq mapping */
774 
775 	int8_t safe_zidx;
776 	struct rx_buf_info rx_buf_info[SW_ZONE_SIZES];
777 };
778 
779 struct devnames {
780 	const char *nexus_name;
781 	const char *ifnet_name;
782 	const char *vi_ifnet_name;
783 	const char *pf03_drv_name;
784 	const char *vf_nexus_name;
785 	const char *vf_ifnet_name;
786 };
787 
788 struct clip_entry;
789 
790 struct adapter {
791 	SLIST_ENTRY(adapter) link;
792 	device_t dev;
793 	struct cdev *cdev;
794 	const struct devnames *names;
795 
796 	/* PCIe register resources */
797 	int regs_rid;
798 	struct resource *regs_res;
799 	int msix_rid;
800 	struct resource *msix_res;
801 	bus_space_handle_t bh;
802 	bus_space_tag_t bt;
803 	bus_size_t mmio_len;
804 	int udbs_rid;
805 	struct resource *udbs_res;
806 	volatile uint8_t *udbs_base;
807 
808 	unsigned int pf;
809 	unsigned int mbox;
810 	unsigned int vpd_busy;
811 	unsigned int vpd_flag;
812 
813 	/* Interrupt information */
814 	int intr_type;
815 	int intr_count;
816 	struct irq {
817 		struct resource *res;
818 		int rid;
819 		void *tag;
820 		struct sge_rxq *rxq;
821 		struct sge_nm_rxq *nm_rxq;
822 	} __aligned(CACHE_LINE_SIZE) *irq;
823 	int sge_gts_reg;
824 	int sge_kdoorbell_reg;
825 
826 	bus_dma_tag_t dmat;	/* Parent DMA tag */
827 
828 	struct sge sge;
829 	int lro_timeout;
830 	int sc_do_rxcopy;
831 
832 	struct taskqueue *tq[MAX_NCHAN];	/* General purpose taskqueues */
833 	struct task async_event_task;
834 	struct port_info *port[MAX_NPORTS];
835 	uint8_t chan_map[MAX_NCHAN];		/* channel -> port */
836 
837 	struct mtx clip_table_lock;
838 	TAILQ_HEAD(, clip_entry) clip_table;
839 	int clip_gen;
840 
841 	void *tom_softc;	/* (struct tom_data *) */
842 	struct tom_tunables tt;
843 	struct t4_offload_policy *policy;
844 	struct rwlock policy_lock;
845 
846 	void *iwarp_softc;	/* (struct c4iw_dev *) */
847 	struct iw_tunables iwt;
848 	void *iscsi_ulp_softc;	/* (struct cxgbei_data *) */
849 	void *ccr_softc;	/* (struct ccr_softc *) */
850 	struct l2t_data *l2t;	/* L2 table */
851 	struct smt_data *smt;	/* Source MAC Table */
852 	struct tid_info tids;
853 	vmem_t *key_map;
854 	struct tls_tunables tlst;
855 
856 	uint8_t doorbells;
857 	int offload_map;	/* ports with IFCAP_TOE enabled */
858 	int active_ulds;	/* ULDs activated on this adapter */
859 	int flags;
860 	int debug_flags;
861 
862 	char ifp_lockname[16];
863 	struct mtx ifp_lock;
864 	struct ifnet *ifp;	/* tracer ifp */
865 	struct ifmedia media;
866 	int traceq;		/* iq used by all tracers, -1 if none */
867 	int tracer_valid;	/* bitmap of valid tracers */
868 	int tracer_enabled;	/* bitmap of enabled tracers */
869 
870 	char fw_version[16];
871 	char tp_version[16];
872 	char er_version[16];
873 	char bs_version[16];
874 	char cfg_file[32];
875 	u_int cfcsum;
876 	struct adapter_params params;
877 	const struct chip_params *chip_params;
878 	struct t4_virt_res vres;
879 
880 	uint16_t nbmcaps;
881 	uint16_t linkcaps;
882 	uint16_t switchcaps;
883 	uint16_t niccaps;
884 	uint16_t toecaps;
885 	uint16_t rdmacaps;
886 	uint16_t cryptocaps;
887 	uint16_t iscsicaps;
888 	uint16_t fcoecaps;
889 
890 	struct sysctl_ctx_list ctx; /* from adapter_full_init to full_uninit */
891 
892 	struct mtx sc_lock;
893 	char lockname[16];
894 
895 	/* Starving free lists */
896 	struct mtx sfl_lock;	/* same cache-line as sc_lock? but that's ok */
897 	TAILQ_HEAD(, sge_fl) sfl;
898 	struct callout sfl_callout;
899 
900 	struct mtx reg_lock;	/* for indirect register access */
901 
902 	struct memwin memwin[NUM_MEMWIN];	/* memory windows */
903 
904 	struct mtx tc_lock;
905 	struct task tc_task;
906 
907 	const char *last_op;
908 	const void *last_op_thr;
909 	int last_op_flags;
910 
911 	int swintr;
912 	int sensor_resets;
913 
914 	struct callout ktls_tick;
915 };
916 
917 #define ADAPTER_LOCK(sc)		mtx_lock(&(sc)->sc_lock)
918 #define ADAPTER_UNLOCK(sc)		mtx_unlock(&(sc)->sc_lock)
919 #define ADAPTER_LOCK_ASSERT_OWNED(sc)	mtx_assert(&(sc)->sc_lock, MA_OWNED)
920 #define ADAPTER_LOCK_ASSERT_NOTOWNED(sc) mtx_assert(&(sc)->sc_lock, MA_NOTOWNED)
921 
922 #define ASSERT_SYNCHRONIZED_OP(sc)	\
923     KASSERT(IS_BUSY(sc) && \
924 	(mtx_owned(&(sc)->sc_lock) || sc->last_op_thr == curthread), \
925 	("%s: operation not synchronized.", __func__))
926 
927 #define PORT_LOCK(pi)			mtx_lock(&(pi)->pi_lock)
928 #define PORT_UNLOCK(pi)			mtx_unlock(&(pi)->pi_lock)
929 #define PORT_LOCK_ASSERT_OWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_OWNED)
930 #define PORT_LOCK_ASSERT_NOTOWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_NOTOWNED)
931 
932 #define FL_LOCK(fl)			mtx_lock(&(fl)->fl_lock)
933 #define FL_TRYLOCK(fl)			mtx_trylock(&(fl)->fl_lock)
934 #define FL_UNLOCK(fl)			mtx_unlock(&(fl)->fl_lock)
935 #define FL_LOCK_ASSERT_OWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_OWNED)
936 #define FL_LOCK_ASSERT_NOTOWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_NOTOWNED)
937 
938 #define RXQ_FL_LOCK(rxq)		FL_LOCK(&(rxq)->fl)
939 #define RXQ_FL_UNLOCK(rxq)		FL_UNLOCK(&(rxq)->fl)
940 #define RXQ_FL_LOCK_ASSERT_OWNED(rxq)	FL_LOCK_ASSERT_OWNED(&(rxq)->fl)
941 #define RXQ_FL_LOCK_ASSERT_NOTOWNED(rxq) FL_LOCK_ASSERT_NOTOWNED(&(rxq)->fl)
942 
943 #define EQ_LOCK(eq)			mtx_lock(&(eq)->eq_lock)
944 #define EQ_TRYLOCK(eq)			mtx_trylock(&(eq)->eq_lock)
945 #define EQ_UNLOCK(eq)			mtx_unlock(&(eq)->eq_lock)
946 #define EQ_LOCK_ASSERT_OWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_OWNED)
947 #define EQ_LOCK_ASSERT_NOTOWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_NOTOWNED)
948 
949 #define TXQ_LOCK(txq)			EQ_LOCK(&(txq)->eq)
950 #define TXQ_TRYLOCK(txq)		EQ_TRYLOCK(&(txq)->eq)
951 #define TXQ_UNLOCK(txq)			EQ_UNLOCK(&(txq)->eq)
952 #define TXQ_LOCK_ASSERT_OWNED(txq)	EQ_LOCK_ASSERT_OWNED(&(txq)->eq)
953 #define TXQ_LOCK_ASSERT_NOTOWNED(txq)	EQ_LOCK_ASSERT_NOTOWNED(&(txq)->eq)
954 
955 #define for_each_txq(vi, iter, q) \
956 	for (q = &vi->pi->adapter->sge.txq[vi->first_txq], iter = 0; \
957 	    iter < vi->ntxq; ++iter, ++q)
958 #define for_each_rxq(vi, iter, q) \
959 	for (q = &vi->pi->adapter->sge.rxq[vi->first_rxq], iter = 0; \
960 	    iter < vi->nrxq; ++iter, ++q)
961 #define for_each_ofld_txq(vi, iter, q) \
962 	for (q = &vi->pi->adapter->sge.ofld_txq[vi->first_ofld_txq], iter = 0; \
963 	    iter < vi->nofldtxq; ++iter, ++q)
964 #define for_each_ofld_rxq(vi, iter, q) \
965 	for (q = &vi->pi->adapter->sge.ofld_rxq[vi->first_ofld_rxq], iter = 0; \
966 	    iter < vi->nofldrxq; ++iter, ++q)
967 #define for_each_nm_txq(vi, iter, q) \
968 	for (q = &vi->pi->adapter->sge.nm_txq[vi->first_nm_txq], iter = 0; \
969 	    iter < vi->nnmtxq; ++iter, ++q)
970 #define for_each_nm_rxq(vi, iter, q) \
971 	for (q = &vi->pi->adapter->sge.nm_rxq[vi->first_nm_rxq], iter = 0; \
972 	    iter < vi->nnmrxq; ++iter, ++q)
973 #define for_each_vi(_pi, _iter, _vi) \
974 	for ((_vi) = (_pi)->vi, (_iter) = 0; (_iter) < (_pi)->nvi; \
975 	     ++(_iter), ++(_vi))
976 
977 #define IDXINCR(idx, incr, wrap) do { \
978 	idx = wrap - idx > incr ? idx + incr : incr - (wrap - idx); \
979 } while (0)
980 #define IDXDIFF(head, tail, wrap) \
981 	((head) >= (tail) ? (head) - (tail) : (wrap) - (tail) + (head))
982 
983 /* One for errors, one for firmware events */
984 #define T4_EXTRA_INTR 2
985 
986 /* One for firmware events */
987 #define T4VF_EXTRA_INTR 1
988 
989 static inline int
990 forwarding_intr_to_fwq(struct adapter *sc)
991 {
992 
993 	return (sc->intr_count == 1);
994 }
995 
996 static inline uint32_t
997 t4_read_reg(struct adapter *sc, uint32_t reg)
998 {
999 
1000 	return bus_space_read_4(sc->bt, sc->bh, reg);
1001 }
1002 
1003 static inline void
1004 t4_write_reg(struct adapter *sc, uint32_t reg, uint32_t val)
1005 {
1006 
1007 	bus_space_write_4(sc->bt, sc->bh, reg, val);
1008 }
1009 
1010 static inline uint64_t
1011 t4_read_reg64(struct adapter *sc, uint32_t reg)
1012 {
1013 
1014 #ifdef __LP64__
1015 	return bus_space_read_8(sc->bt, sc->bh, reg);
1016 #else
1017 	return (uint64_t)bus_space_read_4(sc->bt, sc->bh, reg) +
1018 	    ((uint64_t)bus_space_read_4(sc->bt, sc->bh, reg + 4) << 32);
1019 
1020 #endif
1021 }
1022 
1023 static inline void
1024 t4_write_reg64(struct adapter *sc, uint32_t reg, uint64_t val)
1025 {
1026 
1027 #ifdef __LP64__
1028 	bus_space_write_8(sc->bt, sc->bh, reg, val);
1029 #else
1030 	bus_space_write_4(sc->bt, sc->bh, reg, val);
1031 	bus_space_write_4(sc->bt, sc->bh, reg + 4, val>> 32);
1032 #endif
1033 }
1034 
1035 static inline void
1036 t4_os_pci_read_cfg1(struct adapter *sc, int reg, uint8_t *val)
1037 {
1038 
1039 	*val = pci_read_config(sc->dev, reg, 1);
1040 }
1041 
1042 static inline void
1043 t4_os_pci_write_cfg1(struct adapter *sc, int reg, uint8_t val)
1044 {
1045 
1046 	pci_write_config(sc->dev, reg, val, 1);
1047 }
1048 
1049 static inline void
1050 t4_os_pci_read_cfg2(struct adapter *sc, int reg, uint16_t *val)
1051 {
1052 
1053 	*val = pci_read_config(sc->dev, reg, 2);
1054 }
1055 
1056 static inline void
1057 t4_os_pci_write_cfg2(struct adapter *sc, int reg, uint16_t val)
1058 {
1059 
1060 	pci_write_config(sc->dev, reg, val, 2);
1061 }
1062 
1063 static inline void
1064 t4_os_pci_read_cfg4(struct adapter *sc, int reg, uint32_t *val)
1065 {
1066 
1067 	*val = pci_read_config(sc->dev, reg, 4);
1068 }
1069 
1070 static inline void
1071 t4_os_pci_write_cfg4(struct adapter *sc, int reg, uint32_t val)
1072 {
1073 
1074 	pci_write_config(sc->dev, reg, val, 4);
1075 }
1076 
1077 static inline struct port_info *
1078 adap2pinfo(struct adapter *sc, int idx)
1079 {
1080 
1081 	return (sc->port[idx]);
1082 }
1083 
1084 static inline void
1085 t4_os_set_hw_addr(struct port_info *pi, uint8_t hw_addr[])
1086 {
1087 
1088 	bcopy(hw_addr, pi->vi[0].hw_addr, ETHER_ADDR_LEN);
1089 }
1090 
1091 static inline int
1092 tx_resume_threshold(struct sge_eq *eq)
1093 {
1094 
1095 	/* not quite the same as qsize / 4, but this will do. */
1096 	return (eq->sidx / 4);
1097 }
1098 
1099 static inline int
1100 t4_use_ldst(struct adapter *sc)
1101 {
1102 
1103 #ifdef notyet
1104 	return (sc->flags & FW_OK || !sc->use_bd);
1105 #else
1106 	return (0);
1107 #endif
1108 }
1109 
1110 static inline void
1111 CH_DUMP_MBOX(struct adapter *sc, int mbox, const int reg,
1112     const char *msg, const __be64 *const p, const bool err)
1113 {
1114 
1115 	if (!(sc->debug_flags & DF_DUMP_MBOX) && !err)
1116 		return;
1117 	if (p != NULL) {
1118 		log(err ? LOG_ERR : LOG_DEBUG,
1119 		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1120 		    "%016llx %016llx %016llx %016llx\n",
1121 		    device_get_nameunit(sc->dev), mbox, msg,
1122 		    (long long)be64_to_cpu(p[0]), (long long)be64_to_cpu(p[1]),
1123 		    (long long)be64_to_cpu(p[2]), (long long)be64_to_cpu(p[3]),
1124 		    (long long)be64_to_cpu(p[4]), (long long)be64_to_cpu(p[5]),
1125 		    (long long)be64_to_cpu(p[6]), (long long)be64_to_cpu(p[7]));
1126 	} else {
1127 		log(err ? LOG_ERR : LOG_DEBUG,
1128 		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1129 		    "%016llx %016llx %016llx %016llx\n",
1130 		    device_get_nameunit(sc->dev), mbox, msg,
1131 		    (long long)t4_read_reg64(sc, reg),
1132 		    (long long)t4_read_reg64(sc, reg + 8),
1133 		    (long long)t4_read_reg64(sc, reg + 16),
1134 		    (long long)t4_read_reg64(sc, reg + 24),
1135 		    (long long)t4_read_reg64(sc, reg + 32),
1136 		    (long long)t4_read_reg64(sc, reg + 40),
1137 		    (long long)t4_read_reg64(sc, reg + 48),
1138 		    (long long)t4_read_reg64(sc, reg + 56));
1139 	}
1140 }
1141 
1142 /* t4_main.c */
1143 extern int t4_ntxq;
1144 extern int t4_nrxq;
1145 extern int t4_intr_types;
1146 extern int t4_tmr_idx;
1147 extern int t4_pktc_idx;
1148 extern unsigned int t4_qsize_rxq;
1149 extern unsigned int t4_qsize_txq;
1150 extern device_method_t cxgbe_methods[];
1151 
1152 int t4_os_find_pci_capability(struct adapter *, int);
1153 int t4_os_pci_save_state(struct adapter *);
1154 int t4_os_pci_restore_state(struct adapter *);
1155 void t4_os_portmod_changed(struct port_info *);
1156 void t4_os_link_changed(struct port_info *);
1157 void t4_iterate(void (*)(struct adapter *, void *), void *);
1158 void t4_init_devnames(struct adapter *);
1159 void t4_add_adapter(struct adapter *);
1160 int t4_detach_common(device_t);
1161 int t4_map_bars_0_and_4(struct adapter *);
1162 int t4_map_bar_2(struct adapter *);
1163 int t4_setup_intr_handlers(struct adapter *);
1164 void t4_sysctls(struct adapter *);
1165 int begin_synchronized_op(struct adapter *, struct vi_info *, int, char *);
1166 void doom_vi(struct adapter *, struct vi_info *);
1167 void end_synchronized_op(struct adapter *, int);
1168 int update_mac_settings(struct ifnet *, int);
1169 int adapter_full_init(struct adapter *);
1170 int adapter_full_uninit(struct adapter *);
1171 uint64_t cxgbe_get_counter(struct ifnet *, ift_counter);
1172 void cxgbe_snd_tag_init(struct cxgbe_snd_tag *, struct ifnet *, int);
1173 int vi_full_init(struct vi_info *);
1174 int vi_full_uninit(struct vi_info *);
1175 void vi_sysctls(struct vi_info *);
1176 void vi_tick(void *);
1177 int rw_via_memwin(struct adapter *, int, uint32_t, uint32_t *, int, int);
1178 int alloc_atid(struct adapter *, void *);
1179 void *lookup_atid(struct adapter *, int);
1180 void free_atid(struct adapter *, int);
1181 void release_tid(struct adapter *, int, struct sge_wrq *);
1182 int cxgbe_media_change(struct ifnet *);
1183 void cxgbe_media_status(struct ifnet *, struct ifmediareq *);
1184 bool t4_os_dump_cimla(struct adapter *, int, bool);
1185 void t4_os_dump_devlog(struct adapter *);
1186 
1187 #ifdef KERN_TLS
1188 /* t4_kern_tls.c */
1189 int cxgbe_tls_tag_alloc(struct ifnet *, union if_snd_tag_alloc_params *,
1190     struct m_snd_tag **);
1191 void cxgbe_tls_tag_free(struct m_snd_tag *);
1192 void t6_ktls_modload(void);
1193 void t6_ktls_modunload(void);
1194 int t6_ktls_try(struct ifnet *, struct socket *, struct ktls_session *);
1195 int t6_ktls_parse_pkt(struct mbuf *, int *, int *);
1196 int t6_ktls_write_wr(struct sge_txq *, void *, struct mbuf *, u_int, u_int);
1197 #endif
1198 
1199 /* t4_keyctx.c */
1200 struct auth_hash;
1201 union authctx;
1202 
1203 void t4_aes_getdeckey(void *, const void *, unsigned int);
1204 void t4_copy_partial_hash(int, union authctx *, void *);
1205 void t4_init_gmac_hash(const char *, int, char *);
1206 void t4_init_hmac_digest(struct auth_hash *, u_int, const char *, int, char *);
1207 
1208 #ifdef DEV_NETMAP
1209 /* t4_netmap.c */
1210 struct sge_nm_rxq;
1211 void cxgbe_nm_attach(struct vi_info *);
1212 void cxgbe_nm_detach(struct vi_info *);
1213 void service_nm_rxq(struct sge_nm_rxq *);
1214 #endif
1215 
1216 /* t4_sge.c */
1217 void t4_sge_modload(void);
1218 void t4_sge_modunload(void);
1219 uint64_t t4_sge_extfree_refs(void);
1220 void t4_tweak_chip_settings(struct adapter *);
1221 int t4_read_chip_settings(struct adapter *);
1222 int t4_create_dma_tag(struct adapter *);
1223 void t4_sge_sysctls(struct adapter *, struct sysctl_ctx_list *,
1224     struct sysctl_oid_list *);
1225 int t4_destroy_dma_tag(struct adapter *);
1226 int t4_setup_adapter_queues(struct adapter *);
1227 int t4_teardown_adapter_queues(struct adapter *);
1228 int t4_setup_vi_queues(struct vi_info *);
1229 int t4_teardown_vi_queues(struct vi_info *);
1230 void t4_intr_all(void *);
1231 void t4_intr(void *);
1232 #ifdef DEV_NETMAP
1233 void t4_nm_intr(void *);
1234 void t4_vi_intr(void *);
1235 #endif
1236 void t4_intr_err(void *);
1237 void t4_intr_evt(void *);
1238 void t4_wrq_tx_locked(struct adapter *, struct sge_wrq *, struct wrqe *);
1239 void t4_update_fl_bufsize(struct ifnet *);
1240 struct mbuf *alloc_wr_mbuf(int, int);
1241 int parse_pkt(struct adapter *, struct mbuf **);
1242 void *start_wrq_wr(struct sge_wrq *, int, struct wrq_cookie *);
1243 void commit_wrq_wr(struct sge_wrq *, void *, struct wrq_cookie *);
1244 int tnl_cong(struct port_info *, int);
1245 void t4_register_an_handler(an_handler_t);
1246 void t4_register_fw_msg_handler(int, fw_msg_handler_t);
1247 void t4_register_cpl_handler(int, cpl_handler_t);
1248 void t4_register_shared_cpl_handler(int, cpl_handler_t, int);
1249 #ifdef RATELIMIT
1250 int ethofld_transmit(struct ifnet *, struct mbuf *);
1251 void send_etid_flush_wr(struct cxgbe_rate_tag *);
1252 #endif
1253 
1254 /* t4_tracer.c */
1255 struct t4_tracer;
1256 void t4_tracer_modload(void);
1257 void t4_tracer_modunload(void);
1258 void t4_tracer_port_detach(struct adapter *);
1259 int t4_get_tracer(struct adapter *, struct t4_tracer *);
1260 int t4_set_tracer(struct adapter *, struct t4_tracer *);
1261 int t4_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1262 int t5_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1263 
1264 /* t4_sched.c */
1265 int t4_set_sched_class(struct adapter *, struct t4_sched_params *);
1266 int t4_set_sched_queue(struct adapter *, struct t4_sched_queue *);
1267 int t4_init_tx_sched(struct adapter *);
1268 int t4_free_tx_sched(struct adapter *);
1269 void t4_update_tx_sched(struct adapter *);
1270 int t4_reserve_cl_rl_kbps(struct adapter *, int, u_int, int *);
1271 void t4_release_cl_rl(struct adapter *, int, int);
1272 int sysctl_tc(SYSCTL_HANDLER_ARGS);
1273 int sysctl_tc_params(SYSCTL_HANDLER_ARGS);
1274 #ifdef RATELIMIT
1275 void t4_init_etid_table(struct adapter *);
1276 void t4_free_etid_table(struct adapter *);
1277 struct cxgbe_rate_tag *lookup_etid(struct adapter *, int);
1278 int cxgbe_rate_tag_alloc(struct ifnet *, union if_snd_tag_alloc_params *,
1279     struct m_snd_tag **);
1280 int cxgbe_rate_tag_modify(struct m_snd_tag *, union if_snd_tag_modify_params *);
1281 int cxgbe_rate_tag_query(struct m_snd_tag *, union if_snd_tag_query_params *);
1282 void cxgbe_rate_tag_free(struct m_snd_tag *);
1283 void cxgbe_rate_tag_free_locked(struct cxgbe_rate_tag *);
1284 void cxgbe_ratelimit_query(struct ifnet *, struct if_ratelimit_query_results *);
1285 #endif
1286 
1287 /* t4_filter.c */
1288 int get_filter_mode(struct adapter *, uint32_t *);
1289 int set_filter_mode(struct adapter *, uint32_t);
1290 int get_filter(struct adapter *, struct t4_filter *);
1291 int set_filter(struct adapter *, struct t4_filter *);
1292 int del_filter(struct adapter *, struct t4_filter *);
1293 int t4_filter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1294 int t4_hashfilter_ao_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1295 int t4_hashfilter_tcb_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1296 int t4_del_hashfilter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1297 void free_hftid_hash(struct tid_info *);
1298 
1299 static inline struct wrqe *
1300 alloc_wrqe(int wr_len, struct sge_wrq *wrq)
1301 {
1302 	int len = offsetof(struct wrqe, wr) + wr_len;
1303 	struct wrqe *wr;
1304 
1305 	wr = malloc(len, M_CXGBE, M_NOWAIT);
1306 	if (__predict_false(wr == NULL))
1307 		return (NULL);
1308 	wr->wr_len = wr_len;
1309 	wr->wrq = wrq;
1310 	return (wr);
1311 }
1312 
1313 static inline void *
1314 wrtod(struct wrqe *wr)
1315 {
1316 	return (&wr->wr[0]);
1317 }
1318 
1319 static inline void
1320 free_wrqe(struct wrqe *wr)
1321 {
1322 	free(wr, M_CXGBE);
1323 }
1324 
1325 static inline void
1326 t4_wrq_tx(struct adapter *sc, struct wrqe *wr)
1327 {
1328 	struct sge_wrq *wrq = wr->wrq;
1329 
1330 	TXQ_LOCK(wrq);
1331 	t4_wrq_tx_locked(sc, wrq, wr);
1332 	TXQ_UNLOCK(wrq);
1333 }
1334 
1335 static inline int
1336 read_via_memwin(struct adapter *sc, int idx, uint32_t addr, uint32_t *val,
1337     int len)
1338 {
1339 
1340 	return (rw_via_memwin(sc, idx, addr, val, len, 0));
1341 }
1342 
1343 static inline int
1344 write_via_memwin(struct adapter *sc, int idx, uint32_t addr,
1345     const uint32_t *val, int len)
1346 {
1347 
1348 	return (rw_via_memwin(sc, idx, addr, (void *)(uintptr_t)val, len, 1));
1349 }
1350 #endif
1351