1/*-
2 * Copyright (c) 2011 Chelsio Communications, Inc.
3 * All rights reserved.
4 * Written by: Navdeep Parhar <np@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: stable/11/sys/dev/cxgbe/adapter.h 346967 2019-04-30 17:30:37Z np $
28 *
29 */
30
31#ifndef __T4_ADAPTER_H__
32#define __T4_ADAPTER_H__
33
34#include <sys/kernel.h>
35#include <sys/bus.h>
36#include <sys/rman.h>
37#include <sys/types.h>
38#include <sys/lock.h>
39#include <sys/malloc.h>
40#include <sys/rwlock.h>
41#include <sys/sx.h>
42#include <sys/vmem.h>
43#include <vm/uma.h>
44
45#include <dev/pci/pcivar.h>
46#include <dev/pci/pcireg.h>
47#include <machine/bus.h>
48#include <sys/socket.h>
49#include <sys/sysctl.h>
50#include <net/ethernet.h>
51#include <net/if.h>
52#include <net/if_var.h>
53#include <net/if_media.h>
54#include <netinet/in.h>
55#include <netinet/tcp_lro.h>
56
57#include "offload.h"
58#include "t4_ioctl.h"
59#include "common/t4_msg.h"
60#include "firmware/t4fw_interface.h"
61
62#define KTR_CXGBE	KTR_SPARE3
63MALLOC_DECLARE(M_CXGBE);
64#define CXGBE_UNIMPLEMENTED(s) \
65    panic("%s (%s, line %d) not implemented yet.", s, __FILE__, __LINE__)
66
67#if defined(__i386__) || defined(__amd64__)
68static __inline void
69prefetch(void *x)
70{
71	__asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
72}
73#else
74#define prefetch(x) __builtin_prefetch(x)
75#endif
76
77#ifndef SYSCTL_ADD_UQUAD
78#define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
79#define sysctl_handle_64 sysctl_handle_quad
80#define CTLTYPE_U64 CTLTYPE_QUAD
81#endif
82
83SYSCTL_DECL(_hw_cxgbe);
84
85struct adapter;
86typedef struct adapter adapter_t;
87
88enum {
89	/*
90	 * All ingress queues use this entry size.  Note that the firmware event
91	 * queue and any iq expecting CPL_RX_PKT in the descriptor needs this to
92	 * be at least 64.
93	 */
94	IQ_ESIZE = 64,
95
96	/* Default queue sizes for all kinds of ingress queues */
97	FW_IQ_QSIZE = 256,
98	RX_IQ_QSIZE = 1024,
99
100	/* All egress queues use this entry size */
101	EQ_ESIZE = 64,
102
103	/* Default queue sizes for all kinds of egress queues */
104	CTRL_EQ_QSIZE = 1024,
105	TX_EQ_QSIZE = 1024,
106
107#if MJUMPAGESIZE != MCLBYTES
108	SW_ZONE_SIZES = 4,	/* cluster, jumbop, jumbo9k, jumbo16k */
109#else
110	SW_ZONE_SIZES = 3,	/* cluster, jumbo9k, jumbo16k */
111#endif
112	CL_METADATA_SIZE = CACHE_LINE_SIZE,
113
114	SGE_MAX_WR_NDESC = SGE_MAX_WR_LEN / EQ_ESIZE, /* max WR size in desc */
115	TX_SGL_SEGS = 39,
116	TX_SGL_SEGS_TSO = 38,
117	TX_SGL_SEGS_EO_TSO = 30,	/* XXX: lower for IPv6. */
118	TX_WR_FLITS = SGE_MAX_WR_LEN / 8
119};
120
121enum {
122	/* adapter intr_type */
123	INTR_INTX	= (1 << 0),
124	INTR_MSI 	= (1 << 1),
125	INTR_MSIX	= (1 << 2)
126};
127
128enum {
129	XGMAC_MTU	= (1 << 0),
130	XGMAC_PROMISC	= (1 << 1),
131	XGMAC_ALLMULTI	= (1 << 2),
132	XGMAC_VLANEX	= (1 << 3),
133	XGMAC_UCADDR	= (1 << 4),
134	XGMAC_MCADDRS	= (1 << 5),
135
136	XGMAC_ALL	= 0xffff
137};
138
139enum {
140	/* flags understood by begin_synchronized_op */
141	HOLD_LOCK	= (1 << 0),
142	SLEEP_OK	= (1 << 1),
143	INTR_OK		= (1 << 2),
144
145	/* flags understood by end_synchronized_op */
146	LOCK_HELD	= HOLD_LOCK,
147};
148
149enum {
150	/* adapter flags */
151	FULL_INIT_DONE	= (1 << 0),
152	FW_OK		= (1 << 1),
153	CHK_MBOX_ACCESS	= (1 << 2),
154	MASTER_PF	= (1 << 3),
155	ADAP_SYSCTL_CTX	= (1 << 4),
156	ADAP_ERR	= (1 << 5),
157	BUF_PACKING_OK	= (1 << 6),
158	IS_VF		= (1 << 7),
159
160	CXGBE_BUSY	= (1 << 9),
161
162	/* port flags */
163	HAS_TRACEQ	= (1 << 3),
164	FIXED_IFMEDIA	= (1 << 4),	/* ifmedia list doesn't change. */
165
166	/* VI flags */
167	DOOMED		= (1 << 0),
168	VI_INIT_DONE	= (1 << 1),
169	VI_SYSCTL_CTX	= (1 << 2),
170
171	/* adapter debug_flags */
172	DF_DUMP_MBOX		= (1 << 0),	/* Log all mbox cmd/rpl. */
173	DF_LOAD_FW_ANYTIME	= (1 << 1),	/* Allow LOAD_FW after init */
174	DF_DISABLE_TCB_CACHE	= (1 << 2),	/* Disable TCB cache (T6+) */
175	DF_DISABLE_CFG_RETRY	= (1 << 3),	/* Disable fallback config */
176	DF_VERBOSE_SLOWINTR	= (1 << 4),	/* Chatty slow intr handler */
177};
178
179#define IS_DOOMED(vi)	((vi)->flags & DOOMED)
180#define SET_DOOMED(vi)	do {(vi)->flags |= DOOMED;} while (0)
181#define IS_BUSY(sc)	((sc)->flags & CXGBE_BUSY)
182#define SET_BUSY(sc)	do {(sc)->flags |= CXGBE_BUSY;} while (0)
183#define CLR_BUSY(sc)	do {(sc)->flags &= ~CXGBE_BUSY;} while (0)
184
185struct vi_info {
186	device_t dev;
187	struct port_info *pi;
188
189	struct ifnet *ifp;
190
191	unsigned long flags;
192	int if_flags;
193
194	uint16_t *rss, *nm_rss;
195	uint16_t viid;		/* opaque VI identifier */
196	uint16_t smt_idx;
197	uint16_t vin;
198	uint8_t vfvld;
199	int16_t  xact_addr_filt;/* index of exact MAC address filter */
200	uint16_t rss_size;	/* size of VI's RSS table slice */
201	uint16_t rss_base;	/* start of VI's RSS table slice */
202
203	int nintr;
204	int first_intr;
205
206	/* These need to be int as they are used in sysctl */
207	int ntxq;		/* # of tx queues */
208	int first_txq;		/* index of first tx queue */
209	int rsrv_noflowq; 	/* Reserve queue 0 for non-flowid packets */
210	int nrxq;		/* # of rx queues */
211	int first_rxq;		/* index of first rx queue */
212	int nofldtxq;		/* # of offload tx queues */
213	int first_ofld_txq;	/* index of first offload tx queue */
214	int nofldrxq;		/* # of offload rx queues */
215	int first_ofld_rxq;	/* index of first offload rx queue */
216	int nnmtxq;
217	int first_nm_txq;
218	int nnmrxq;
219	int first_nm_rxq;
220	int tmr_idx;
221	int ofld_tmr_idx;
222	int pktc_idx;
223	int ofld_pktc_idx;
224	int qsize_rxq;
225	int qsize_txq;
226
227	struct timeval last_refreshed;
228	struct fw_vi_stats_vf stats;
229
230	struct callout tick;
231	struct sysctl_ctx_list ctx;	/* from ifconfig up to driver detach */
232
233	uint8_t hw_addr[ETHER_ADDR_LEN]; /* factory MAC address, won't change */
234};
235
236struct tx_ch_rl_params {
237	enum fw_sched_params_rate ratemode;	/* %port (REL) or kbps (ABS) */
238	uint32_t maxrate;
239};
240
241enum {
242	CLRL_USER	= (1 << 0),	/* allocated manually. */
243	CLRL_SYNC	= (1 << 1),	/* sync hw update in progress. */
244	CLRL_ASYNC	= (1 << 2),	/* async hw update requested. */
245	CLRL_ERR	= (1 << 3),	/* last hw setup ended in error. */
246};
247
248struct tx_cl_rl_params {
249	int refcount;
250	uint8_t flags;
251	enum fw_sched_params_rate ratemode;	/* %port REL or ABS value */
252	enum fw_sched_params_unit rateunit;	/* kbps or pps (when ABS) */
253	enum fw_sched_params_mode mode;		/* aggr or per-flow */
254	uint32_t maxrate;
255	uint16_t pktsize;
256	uint16_t burstsize;
257};
258
259/* Tx scheduler parameters for a channel/port */
260struct tx_sched_params {
261	/* Channel Rate Limiter */
262	struct tx_ch_rl_params ch_rl;
263
264	/* Class WRR */
265	/* XXX */
266
267	/* Class Rate Limiter (including the default pktsize and burstsize). */
268	int pktsize;
269	int burstsize;
270	struct tx_cl_rl_params cl_rl[];
271};
272
273struct port_info {
274	device_t dev;
275	struct adapter *adapter;
276
277	struct vi_info *vi;
278	int nvi;
279	int up_vis;
280	int uld_vis;
281
282	struct tx_sched_params *sched_params;
283
284	struct mtx pi_lock;
285	char lockname[16];
286	unsigned long flags;
287
288	uint8_t  lport;		/* associated offload logical port */
289	int8_t   mdio_addr;
290	uint8_t  port_type;
291	uint8_t  mod_type;
292	uint8_t  port_id;
293	uint8_t  tx_chan;
294	uint8_t  mps_bg_map;	/* rx MPS buffer group bitmap */
295	uint8_t  rx_e_chan_map;	/* rx TP e-channel bitmap */
296
297	struct link_config link_cfg;
298	struct ifmedia media;
299
300	struct timeval last_refreshed;
301 	struct port_stats stats;
302	u_int tnl_cong_drops;
303	u_int tx_parse_error;
304	u_long	tx_tls_records;
305	u_long	tx_tls_octets;
306	u_long	rx_tls_records;
307	u_long	rx_tls_octets;
308
309	struct callout tick;
310};
311
312#define	IS_MAIN_VI(vi)		((vi) == &((vi)->pi->vi[0]))
313
314/* Where the cluster came from, how it has been carved up. */
315struct cluster_layout {
316	int8_t zidx;
317	int8_t hwidx;
318	uint16_t region1;	/* mbufs laid out within this region */
319				/* region2 is the DMA region */
320	uint16_t region3;	/* cluster_metadata within this region */
321};
322
323struct cluster_metadata {
324	u_int refcount;
325	struct fl_sdesc *sd;	/* For debug only.  Could easily be stale */
326};
327
328struct fl_sdesc {
329	caddr_t cl;
330	uint16_t nmbuf;	/* # of driver originated mbufs with ref on cluster */
331	struct cluster_layout cll;
332};
333
334struct tx_desc {
335	__be64 flit[8];
336};
337
338struct 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))
345struct iq_desc {
346	struct rss_header rss;
347	uint8_t cpl[IQ_PAD];
348	struct rsp_ctrl rsp;
349};
350#undef IQ_PAD
351CTASSERT(sizeof(struct iq_desc) == IQ_ESIZE);
352
353enum {
354	/* iq flags */
355	IQ_ALLOCATED	= (1 << 0),	/* firmware resources allocated */
356	IQ_HAS_FL	= (1 << 1),	/* iq associated with a freelist */
357					/* 1 << 2 Used to be IQ_INTR */
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
372enum {
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_AVAILABLE3,
381
382	NUM_CPL_COOKIES = 8	/* Limited by M_COOKIE.  Do not increase. */
383};
384
385struct sge_iq;
386struct rss_header;
387typedef int (*cpl_handler_t)(struct sge_iq *, const struct rss_header *,
388    struct mbuf *);
389typedef int (*an_handler_t)(struct sge_iq *, const struct rsp_ctrl *);
390typedef int (*fw_msg_handler_t)(struct adapter *, const __be64 *);
391
392/*
393 * Ingress Queue: T4 is producer, driver is consumer.
394 */
395struct 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
417enum {
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 */
430enum {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 */
438struct 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
463struct sw_zone_info {
464	uma_zone_t zone;	/* zone that this cluster comes from */
465	int size;		/* size of cluster: 2K, 4K, 9K, 16K, etc. */
466	int type;		/* EXT_xxx type of the cluster */
467	int8_t head_hwidx;
468	int8_t tail_hwidx;
469};
470
471struct hw_buf_info {
472	int8_t zidx;		/* backpointer to zone; -ve means unused */
473	int8_t next;		/* next hwidx for this zone; -1 means no more */
474	int size;
475};
476
477enum {
478	NUM_MEMWIN = 3,
479
480	MEMWIN0_APERTURE = 2048,
481	MEMWIN0_BASE     = 0x1b800,
482
483	MEMWIN1_APERTURE = 32768,
484	MEMWIN1_BASE     = 0x28000,
485
486	MEMWIN2_APERTURE_T4 = 65536,
487	MEMWIN2_BASE_T4     = 0x30000,
488
489	MEMWIN2_APERTURE_T5 = 128 * 1024,
490	MEMWIN2_BASE_T5     = 0x60000,
491};
492
493struct memwin {
494	struct rwlock mw_lock __aligned(CACHE_LINE_SIZE);
495	uint32_t mw_base;	/* constant after setup_memwin */
496	uint32_t mw_aperture;	/* ditto */
497	uint32_t mw_curpos;	/* protected by mw_lock */
498};
499
500enum {
501	FL_STARVING	= (1 << 0), /* on the adapter's list of starving fl's */
502	FL_DOOMED	= (1 << 1), /* about to be destroyed */
503	FL_BUF_PACKING	= (1 << 2), /* buffer packing enabled */
504	FL_BUF_RESUME	= (1 << 3), /* resume from the middle of the frame */
505};
506
507#define FL_RUNNING_LOW(fl) \
508    (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) <= fl->lowat)
509#define FL_NOT_RUNNING_LOW(fl) \
510    (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) >= 2 * fl->lowat)
511
512struct sge_fl {
513	struct mtx fl_lock;
514	__be64 *desc;		/* KVA of descriptor ring, ptr to addresses */
515	struct fl_sdesc *sdesc;	/* KVA of software descriptor ring */
516	struct cluster_layout cll_def;	/* default refill zone, layout */
517	uint16_t lowat;		/* # of buffers <= this means fl needs help */
518	int flags;
519	uint16_t buf_boundary;
520
521	/* The 16b idx all deal with hw descriptors */
522	uint16_t dbidx;		/* hw pidx after last doorbell */
523	uint16_t sidx;		/* index of status page */
524	volatile uint16_t hw_cidx;
525
526	/* The 32b idx are all buffer idx, not hardware descriptor idx */
527	uint32_t cidx;		/* consumer index */
528	uint32_t pidx;		/* producer index */
529
530	uint32_t dbval;
531	u_int rx_offset;	/* offset in fl buf (when buffer packing) */
532	volatile uint32_t *udb;
533
534	uint64_t mbuf_allocated;/* # of mbuf allocated from zone_mbuf */
535	uint64_t mbuf_inlined;	/* # of mbuf created within clusters */
536	uint64_t cl_allocated;	/* # of clusters allocated */
537	uint64_t cl_recycled;	/* # of clusters recycled */
538	uint64_t cl_fast_recycled; /* # of clusters recycled (fast) */
539
540	/* These 3 are valid when FL_BUF_RESUME is set, stale otherwise. */
541	struct mbuf *m0;
542	struct mbuf **pnext;
543	u_int remaining;
544
545	uint16_t qsize;		/* # of hw descriptors (status page included) */
546	uint16_t cntxt_id;	/* SGE context id for the freelist */
547	TAILQ_ENTRY(sge_fl) link; /* All starving freelists */
548	bus_dma_tag_t desc_tag;
549	bus_dmamap_t desc_map;
550	char lockname[16];
551	bus_addr_t ba;		/* bus address of descriptor ring */
552	struct cluster_layout cll_alt;	/* alternate refill zone, layout */
553};
554
555struct mp_ring;
556
557/* txq: SGE egress queue + what's needed for Ethernet NIC */
558struct sge_txq {
559	struct sge_eq eq;	/* MUST be first */
560
561	struct ifnet *ifp;	/* the interface this txq belongs to */
562	struct mp_ring *r;	/* tx software ring */
563	struct tx_sdesc *sdesc;	/* KVA of software descriptor ring */
564	struct sglist *gl;
565	__be32 cpl_ctrl0;	/* for convenience */
566	int tc_idx;		/* traffic class */
567
568	struct task tx_reclaim_task;
569	/* stats for common events first */
570
571	uint64_t txcsum;	/* # of times hardware assisted with checksum */
572	uint64_t tso_wrs;	/* # of TSO work requests */
573	uint64_t vlan_insertion;/* # of times VLAN tag was inserted */
574	uint64_t imm_wrs;	/* # of work requests with immediate data */
575	uint64_t sgl_wrs;	/* # of work requests with direct SGL */
576	uint64_t txpkt_wrs;	/* # of txpkt work requests (not coalesced) */
577	uint64_t txpkts0_wrs;	/* # of type0 coalesced tx work requests */
578	uint64_t txpkts1_wrs;	/* # of type1 coalesced tx work requests */
579	uint64_t txpkts0_pkts;	/* # of frames in type0 coalesced tx WRs */
580	uint64_t txpkts1_pkts;	/* # of frames in type1 coalesced tx WRs */
581
582	/* stats for not-that-common events */
583} __aligned(CACHE_LINE_SIZE);
584
585/* rxq: SGE ingress queue + SGE free list + miscellaneous items */
586struct sge_rxq {
587	struct sge_iq iq;	/* MUST be first */
588	struct sge_fl fl;	/* MUST follow iq */
589
590	struct ifnet *ifp;	/* the interface this rxq belongs to */
591#if defined(INET) || defined(INET6)
592	struct lro_ctrl lro;	/* LRO state */
593#endif
594
595	/* stats for common events first */
596
597	uint64_t rxcsum;	/* # of times hardware assisted with checksum */
598	uint64_t vlan_extraction;/* # of times VLAN tag was extracted */
599
600	/* stats for not-that-common events */
601
602} __aligned(CACHE_LINE_SIZE);
603
604static inline struct sge_rxq *
605iq_to_rxq(struct sge_iq *iq)
606{
607
608	return (__containerof(iq, struct sge_rxq, iq));
609}
610
611
612/* ofld_rxq: SGE ingress queue + SGE free list + miscellaneous items */
613struct sge_ofld_rxq {
614	struct sge_iq iq;	/* MUST be first */
615	struct sge_fl fl;	/* MUST follow iq */
616} __aligned(CACHE_LINE_SIZE);
617
618static inline struct sge_ofld_rxq *
619iq_to_ofld_rxq(struct sge_iq *iq)
620{
621
622	return (__containerof(iq, struct sge_ofld_rxq, iq));
623}
624
625struct wrqe {
626	STAILQ_ENTRY(wrqe) link;
627	struct sge_wrq *wrq;
628	int wr_len;
629	char wr[] __aligned(16);
630};
631
632struct wrq_cookie {
633	TAILQ_ENTRY(wrq_cookie) link;
634	int ndesc;
635	int pidx;
636};
637
638/*
639 * wrq: SGE egress queue that is given prebuilt work requests.  Both the control
640 * and offload tx queues are of this type.
641 */
642struct sge_wrq {
643	struct sge_eq eq;	/* MUST be first */
644
645	struct adapter *adapter;
646	struct task wrq_tx_task;
647
648	/* Tx desc reserved but WR not "committed" yet. */
649	TAILQ_HEAD(wrq_incomplete_wrs , wrq_cookie) incomplete_wrs;
650
651	/* List of WRs ready to go out as soon as descriptors are available. */
652	STAILQ_HEAD(, wrqe) wr_list;
653	u_int nwr_pending;
654	u_int ndesc_needed;
655
656	/* stats for common events first */
657
658	uint64_t tx_wrs_direct;	/* # of WRs written directly to desc ring. */
659	uint64_t tx_wrs_ss;	/* # of WRs copied from scratch space. */
660	uint64_t tx_wrs_copied;	/* # of WRs queued and copied to desc ring. */
661
662	/* stats for not-that-common events */
663
664	/*
665	 * Scratch space for work requests that wrap around after reaching the
666	 * status page, and some information about the last WR that used it.
667	 */
668	uint16_t ss_pidx;
669	uint16_t ss_len;
670	uint8_t ss[SGE_MAX_WR_LEN];
671
672} __aligned(CACHE_LINE_SIZE);
673
674
675struct sge_nm_rxq {
676	volatile int nm_state;	/* NM_OFF, NM_ON, or NM_BUSY */
677	struct vi_info *vi;
678
679	struct iq_desc *iq_desc;
680	uint16_t iq_abs_id;
681	uint16_t iq_cntxt_id;
682	uint16_t iq_cidx;
683	uint16_t iq_sidx;
684	uint8_t iq_gen;
685
686	__be64  *fl_desc;
687	uint16_t fl_cntxt_id;
688	uint32_t fl_cidx;
689	uint32_t fl_pidx;
690	uint32_t fl_sidx;
691	uint32_t fl_db_val;
692	u_int fl_hwidx:4;
693
694	u_int nid;		/* netmap ring # for this queue */
695
696	/* infrequently used items after this */
697
698	bus_dma_tag_t iq_desc_tag;
699	bus_dmamap_t iq_desc_map;
700	bus_addr_t iq_ba;
701	int intr_idx;
702
703	bus_dma_tag_t fl_desc_tag;
704	bus_dmamap_t fl_desc_map;
705	bus_addr_t fl_ba;
706} __aligned(CACHE_LINE_SIZE);
707
708struct sge_nm_txq {
709	struct tx_desc *desc;
710	uint16_t cidx;
711	uint16_t pidx;
712	uint16_t sidx;
713	uint16_t equiqidx;	/* EQUIQ last requested at this pidx */
714	uint16_t equeqidx;	/* EQUEQ last requested at this pidx */
715	uint16_t dbidx;		/* pidx of the most recent doorbell */
716	uint8_t doorbells;
717	volatile uint32_t *udb;
718	u_int udb_qid;
719	u_int cntxt_id;
720	__be32 cpl_ctrl0;	/* for convenience */
721	u_int nid;		/* netmap ring # for this queue */
722
723	/* infrequently used items after this */
724
725	bus_dma_tag_t desc_tag;
726	bus_dmamap_t desc_map;
727	bus_addr_t ba;
728	int iqidx;
729} __aligned(CACHE_LINE_SIZE);
730
731struct sge {
732	int nrxq;	/* total # of Ethernet rx queues */
733	int ntxq;	/* total # of Ethernet tx queues */
734	int nofldrxq;	/* total # of TOE rx queues */
735	int nofldtxq;	/* total # of TOE tx queues */
736	int nnmrxq;	/* total # of netmap rx queues */
737	int nnmtxq;	/* total # of netmap tx queues */
738	int niq;	/* total # of ingress queues */
739	int neq;	/* total # of egress queues */
740
741	struct sge_iq fwq;	/* Firmware event queue */
742	struct sge_wrq *ctrlq;	/* Control queues */
743	struct sge_txq *txq;	/* NIC tx queues */
744	struct sge_rxq *rxq;	/* NIC rx queues */
745	struct sge_wrq *ofld_txq;	/* TOE tx queues */
746	struct sge_ofld_rxq *ofld_rxq;	/* TOE rx queues */
747	struct sge_nm_txq *nm_txq;	/* netmap tx queues */
748	struct sge_nm_rxq *nm_rxq;	/* netmap rx queues */
749
750	uint16_t iq_start;	/* first cntxt_id */
751	uint16_t iq_base;	/* first abs_id */
752	int eq_start;		/* first cntxt_id */
753	int eq_base;		/* first abs_id */
754	struct sge_iq **iqmap;	/* iq->cntxt_id to iq mapping */
755	struct sge_eq **eqmap;	/* eq->cntxt_id to eq mapping */
756
757	int8_t safe_hwidx1;	/* may not have room for metadata */
758	int8_t safe_hwidx2;	/* with room for metadata and maybe more */
759	struct sw_zone_info sw_zone_info[SW_ZONE_SIZES];
760	struct hw_buf_info hw_buf_info[SGE_FLBUF_SIZES];
761};
762
763struct devnames {
764	const char *nexus_name;
765	const char *ifnet_name;
766	const char *vi_ifnet_name;
767	const char *pf03_drv_name;
768	const char *vf_nexus_name;
769	const char *vf_ifnet_name;
770};
771
772struct clip_entry;
773
774struct adapter {
775	SLIST_ENTRY(adapter) link;
776	device_t dev;
777	struct cdev *cdev;
778	const struct devnames *names;
779
780	/* PCIe register resources */
781	int regs_rid;
782	struct resource *regs_res;
783	int msix_rid;
784	struct resource *msix_res;
785	bus_space_handle_t bh;
786	bus_space_tag_t bt;
787	bus_size_t mmio_len;
788	int udbs_rid;
789	struct resource *udbs_res;
790	volatile uint8_t *udbs_base;
791
792	unsigned int pf;
793	unsigned int mbox;
794	unsigned int vpd_busy;
795	unsigned int vpd_flag;
796
797	/* Interrupt information */
798	int intr_type;
799	int intr_count;
800	struct irq {
801		struct resource *res;
802		int rid;
803		void *tag;
804		struct sge_rxq *rxq;
805		struct sge_nm_rxq *nm_rxq;
806	} __aligned(CACHE_LINE_SIZE) *irq;
807	int sge_gts_reg;
808	int sge_kdoorbell_reg;
809
810	bus_dma_tag_t dmat;	/* Parent DMA tag */
811
812	struct sge sge;
813	int lro_timeout;
814	int sc_do_rxcopy;
815
816	struct taskqueue *tq[MAX_NCHAN];	/* General purpose taskqueues */
817	struct port_info *port[MAX_NPORTS];
818	uint8_t chan_map[MAX_NCHAN];		/* channel -> port */
819
820	struct mtx clip_table_lock;
821	TAILQ_HEAD(, clip_entry) clip_table;
822	int clip_gen;
823
824	void *tom_softc;	/* (struct tom_data *) */
825	struct tom_tunables tt;
826	struct t4_offload_policy *policy;
827	struct rwlock policy_lock;
828
829	void *iwarp_softc;	/* (struct c4iw_dev *) */
830	struct iw_tunables iwt;
831	void *iscsi_ulp_softc;	/* (struct cxgbei_data *) */
832	void *ccr_softc;	/* (struct ccr_softc *) */
833	struct l2t_data *l2t;	/* L2 table */
834	struct smt_data *smt;	/* Source MAC Table */
835	struct tid_info tids;
836	vmem_t *key_map;
837
838	uint8_t doorbells;
839	int offload_map;	/* ports with IFCAP_TOE enabled */
840	int active_ulds;	/* ULDs activated on this adapter */
841	int flags;
842	int debug_flags;
843
844	char ifp_lockname[16];
845	struct mtx ifp_lock;
846	struct ifnet *ifp;	/* tracer ifp */
847	struct ifmedia media;
848	int traceq;		/* iq used by all tracers, -1 if none */
849	int tracer_valid;	/* bitmap of valid tracers */
850	int tracer_enabled;	/* bitmap of enabled tracers */
851
852	char fw_version[16];
853	char tp_version[16];
854	char er_version[16];
855	char bs_version[16];
856	char cfg_file[32];
857	u_int cfcsum;
858	struct adapter_params params;
859	const struct chip_params *chip_params;
860	struct t4_virt_res vres;
861
862	uint16_t nbmcaps;
863	uint16_t linkcaps;
864	uint16_t switchcaps;
865	uint16_t niccaps;
866	uint16_t toecaps;
867	uint16_t rdmacaps;
868	uint16_t cryptocaps;
869	uint16_t iscsicaps;
870	uint16_t fcoecaps;
871
872	struct sysctl_ctx_list ctx; /* from adapter_full_init to full_uninit */
873
874	struct mtx sc_lock;
875	char lockname[16];
876
877	/* Starving free lists */
878	struct mtx sfl_lock;	/* same cache-line as sc_lock? but that's ok */
879	TAILQ_HEAD(, sge_fl) sfl;
880	struct callout sfl_callout;
881
882	struct mtx reg_lock;	/* for indirect register access */
883
884	struct memwin memwin[NUM_MEMWIN];	/* memory windows */
885
886	struct mtx tc_lock;
887	struct task tc_task;
888
889	const char *last_op;
890	const void *last_op_thr;
891	int last_op_flags;
892
893	int swintr;
894};
895
896#define ADAPTER_LOCK(sc)		mtx_lock(&(sc)->sc_lock)
897#define ADAPTER_UNLOCK(sc)		mtx_unlock(&(sc)->sc_lock)
898#define ADAPTER_LOCK_ASSERT_OWNED(sc)	mtx_assert(&(sc)->sc_lock, MA_OWNED)
899#define ADAPTER_LOCK_ASSERT_NOTOWNED(sc) mtx_assert(&(sc)->sc_lock, MA_NOTOWNED)
900
901#define ASSERT_SYNCHRONIZED_OP(sc)	\
902    KASSERT(IS_BUSY(sc) && \
903	(mtx_owned(&(sc)->sc_lock) || sc->last_op_thr == curthread), \
904	("%s: operation not synchronized.", __func__))
905
906#define PORT_LOCK(pi)			mtx_lock(&(pi)->pi_lock)
907#define PORT_UNLOCK(pi)			mtx_unlock(&(pi)->pi_lock)
908#define PORT_LOCK_ASSERT_OWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_OWNED)
909#define PORT_LOCK_ASSERT_NOTOWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_NOTOWNED)
910
911#define FL_LOCK(fl)			mtx_lock(&(fl)->fl_lock)
912#define FL_TRYLOCK(fl)			mtx_trylock(&(fl)->fl_lock)
913#define FL_UNLOCK(fl)			mtx_unlock(&(fl)->fl_lock)
914#define FL_LOCK_ASSERT_OWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_OWNED)
915#define FL_LOCK_ASSERT_NOTOWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_NOTOWNED)
916
917#define RXQ_FL_LOCK(rxq)		FL_LOCK(&(rxq)->fl)
918#define RXQ_FL_UNLOCK(rxq)		FL_UNLOCK(&(rxq)->fl)
919#define RXQ_FL_LOCK_ASSERT_OWNED(rxq)	FL_LOCK_ASSERT_OWNED(&(rxq)->fl)
920#define RXQ_FL_LOCK_ASSERT_NOTOWNED(rxq) FL_LOCK_ASSERT_NOTOWNED(&(rxq)->fl)
921
922#define EQ_LOCK(eq)			mtx_lock(&(eq)->eq_lock)
923#define EQ_TRYLOCK(eq)			mtx_trylock(&(eq)->eq_lock)
924#define EQ_UNLOCK(eq)			mtx_unlock(&(eq)->eq_lock)
925#define EQ_LOCK_ASSERT_OWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_OWNED)
926#define EQ_LOCK_ASSERT_NOTOWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_NOTOWNED)
927
928#define TXQ_LOCK(txq)			EQ_LOCK(&(txq)->eq)
929#define TXQ_TRYLOCK(txq)		EQ_TRYLOCK(&(txq)->eq)
930#define TXQ_UNLOCK(txq)			EQ_UNLOCK(&(txq)->eq)
931#define TXQ_LOCK_ASSERT_OWNED(txq)	EQ_LOCK_ASSERT_OWNED(&(txq)->eq)
932#define TXQ_LOCK_ASSERT_NOTOWNED(txq)	EQ_LOCK_ASSERT_NOTOWNED(&(txq)->eq)
933
934#define for_each_txq(vi, iter, q) \
935	for (q = &vi->pi->adapter->sge.txq[vi->first_txq], iter = 0; \
936	    iter < vi->ntxq; ++iter, ++q)
937#define for_each_rxq(vi, iter, q) \
938	for (q = &vi->pi->adapter->sge.rxq[vi->first_rxq], iter = 0; \
939	    iter < vi->nrxq; ++iter, ++q)
940#define for_each_ofld_txq(vi, iter, q) \
941	for (q = &vi->pi->adapter->sge.ofld_txq[vi->first_ofld_txq], iter = 0; \
942	    iter < vi->nofldtxq; ++iter, ++q)
943#define for_each_ofld_rxq(vi, iter, q) \
944	for (q = &vi->pi->adapter->sge.ofld_rxq[vi->first_ofld_rxq], iter = 0; \
945	    iter < vi->nofldrxq; ++iter, ++q)
946#define for_each_nm_txq(vi, iter, q) \
947	for (q = &vi->pi->adapter->sge.nm_txq[vi->first_nm_txq], iter = 0; \
948	    iter < vi->nnmtxq; ++iter, ++q)
949#define for_each_nm_rxq(vi, iter, q) \
950	for (q = &vi->pi->adapter->sge.nm_rxq[vi->first_nm_rxq], iter = 0; \
951	    iter < vi->nnmrxq; ++iter, ++q)
952#define for_each_vi(_pi, _iter, _vi) \
953	for ((_vi) = (_pi)->vi, (_iter) = 0; (_iter) < (_pi)->nvi; \
954	     ++(_iter), ++(_vi))
955
956#define IDXINCR(idx, incr, wrap) do { \
957	idx = wrap - idx > incr ? idx + incr : incr - (wrap - idx); \
958} while (0)
959#define IDXDIFF(head, tail, wrap) \
960	((head) >= (tail) ? (head) - (tail) : (wrap) - (tail) + (head))
961
962/* One for errors, one for firmware events */
963#define T4_EXTRA_INTR 2
964
965/* One for firmware events */
966#define T4VF_EXTRA_INTR 1
967
968static inline int
969forwarding_intr_to_fwq(struct adapter *sc)
970{
971
972	return (sc->intr_count == 1);
973}
974
975static inline uint32_t
976t4_read_reg(struct adapter *sc, uint32_t reg)
977{
978
979	return bus_space_read_4(sc->bt, sc->bh, reg);
980}
981
982static inline void
983t4_write_reg(struct adapter *sc, uint32_t reg, uint32_t val)
984{
985
986	bus_space_write_4(sc->bt, sc->bh, reg, val);
987}
988
989static inline uint64_t
990t4_read_reg64(struct adapter *sc, uint32_t reg)
991{
992
993#ifdef __LP64__
994	return bus_space_read_8(sc->bt, sc->bh, reg);
995#else
996	return (uint64_t)bus_space_read_4(sc->bt, sc->bh, reg) +
997	    ((uint64_t)bus_space_read_4(sc->bt, sc->bh, reg + 4) << 32);
998
999#endif
1000}
1001
1002static inline void
1003t4_write_reg64(struct adapter *sc, uint32_t reg, uint64_t val)
1004{
1005
1006#ifdef __LP64__
1007	bus_space_write_8(sc->bt, sc->bh, reg, val);
1008#else
1009	bus_space_write_4(sc->bt, sc->bh, reg, val);
1010	bus_space_write_4(sc->bt, sc->bh, reg + 4, val>> 32);
1011#endif
1012}
1013
1014static inline void
1015t4_os_pci_read_cfg1(struct adapter *sc, int reg, uint8_t *val)
1016{
1017
1018	*val = pci_read_config(sc->dev, reg, 1);
1019}
1020
1021static inline void
1022t4_os_pci_write_cfg1(struct adapter *sc, int reg, uint8_t val)
1023{
1024
1025	pci_write_config(sc->dev, reg, val, 1);
1026}
1027
1028static inline void
1029t4_os_pci_read_cfg2(struct adapter *sc, int reg, uint16_t *val)
1030{
1031
1032	*val = pci_read_config(sc->dev, reg, 2);
1033}
1034
1035static inline void
1036t4_os_pci_write_cfg2(struct adapter *sc, int reg, uint16_t val)
1037{
1038
1039	pci_write_config(sc->dev, reg, val, 2);
1040}
1041
1042static inline void
1043t4_os_pci_read_cfg4(struct adapter *sc, int reg, uint32_t *val)
1044{
1045
1046	*val = pci_read_config(sc->dev, reg, 4);
1047}
1048
1049static inline void
1050t4_os_pci_write_cfg4(struct adapter *sc, int reg, uint32_t val)
1051{
1052
1053	pci_write_config(sc->dev, reg, val, 4);
1054}
1055
1056static inline struct port_info *
1057adap2pinfo(struct adapter *sc, int idx)
1058{
1059
1060	return (sc->port[idx]);
1061}
1062
1063static inline void
1064t4_os_set_hw_addr(struct port_info *pi, uint8_t hw_addr[])
1065{
1066
1067	bcopy(hw_addr, pi->vi[0].hw_addr, ETHER_ADDR_LEN);
1068}
1069
1070static inline int
1071tx_resume_threshold(struct sge_eq *eq)
1072{
1073
1074	/* not quite the same as qsize / 4, but this will do. */
1075	return (eq->sidx / 4);
1076}
1077
1078static inline int
1079t4_use_ldst(struct adapter *sc)
1080{
1081
1082#ifdef notyet
1083	return (sc->flags & FW_OK || !sc->use_bd);
1084#else
1085	return (0);
1086#endif
1087}
1088
1089static inline void
1090CH_DUMP_MBOX(struct adapter *sc, int mbox, const int reg,
1091    const char *msg, const __be64 *const p, const bool err)
1092{
1093
1094	if (!(sc->debug_flags & DF_DUMP_MBOX) && !err)
1095		return;
1096	if (p != NULL) {
1097		log(err ? LOG_ERR : LOG_DEBUG,
1098		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1099		    "%016llx %016llx %016llx %016llx\n",
1100		    device_get_nameunit(sc->dev), mbox, msg,
1101		    (long long)be64_to_cpu(p[0]), (long long)be64_to_cpu(p[1]),
1102		    (long long)be64_to_cpu(p[2]), (long long)be64_to_cpu(p[3]),
1103		    (long long)be64_to_cpu(p[4]), (long long)be64_to_cpu(p[5]),
1104		    (long long)be64_to_cpu(p[6]), (long long)be64_to_cpu(p[7]));
1105	} else {
1106		log(err ? LOG_ERR : LOG_DEBUG,
1107		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1108		    "%016llx %016llx %016llx %016llx\n",
1109		    device_get_nameunit(sc->dev), mbox, msg,
1110		    (long long)t4_read_reg64(sc, reg),
1111		    (long long)t4_read_reg64(sc, reg + 8),
1112		    (long long)t4_read_reg64(sc, reg + 16),
1113		    (long long)t4_read_reg64(sc, reg + 24),
1114		    (long long)t4_read_reg64(sc, reg + 32),
1115		    (long long)t4_read_reg64(sc, reg + 40),
1116		    (long long)t4_read_reg64(sc, reg + 48),
1117		    (long long)t4_read_reg64(sc, reg + 56));
1118	}
1119}
1120
1121/* t4_main.c */
1122extern int t4_ntxq;
1123extern int t4_nrxq;
1124extern int t4_intr_types;
1125extern int t4_tmr_idx;
1126extern int t4_pktc_idx;
1127extern unsigned int t4_qsize_rxq;
1128extern unsigned int t4_qsize_txq;
1129extern device_method_t cxgbe_methods[];
1130
1131int t4_os_find_pci_capability(struct adapter *, int);
1132int t4_os_pci_save_state(struct adapter *);
1133int t4_os_pci_restore_state(struct adapter *);
1134void t4_os_portmod_changed(struct port_info *);
1135void t4_os_link_changed(struct port_info *);
1136void t4_iterate(void (*)(struct adapter *, void *), void *);
1137void t4_init_devnames(struct adapter *);
1138void t4_add_adapter(struct adapter *);
1139void t4_aes_getdeckey(void *, const void *, unsigned int);
1140int t4_detach_common(device_t);
1141int t4_map_bars_0_and_4(struct adapter *);
1142int t4_map_bar_2(struct adapter *);
1143int t4_setup_intr_handlers(struct adapter *);
1144void t4_sysctls(struct adapter *);
1145int begin_synchronized_op(struct adapter *, struct vi_info *, int, char *);
1146void doom_vi(struct adapter *, struct vi_info *);
1147void end_synchronized_op(struct adapter *, int);
1148int update_mac_settings(struct ifnet *, int);
1149int adapter_full_init(struct adapter *);
1150int adapter_full_uninit(struct adapter *);
1151uint64_t cxgbe_get_counter(struct ifnet *, ift_counter);
1152int vi_full_init(struct vi_info *);
1153int vi_full_uninit(struct vi_info *);
1154void vi_sysctls(struct vi_info *);
1155void vi_tick(void *);
1156int rw_via_memwin(struct adapter *, int, uint32_t, uint32_t *, int, int);
1157int alloc_atid_tab(struct tid_info *, int);
1158void free_atid_tab(struct tid_info *);
1159int alloc_atid(struct adapter *, void *);
1160void *lookup_atid(struct adapter *, int);
1161void free_atid(struct adapter *, int);
1162void release_tid(struct adapter *, int, struct sge_wrq *);
1163int cxgbe_media_change(struct ifnet *);
1164void cxgbe_media_status(struct ifnet *, struct ifmediareq *);
1165bool t4_os_dump_cimla(struct adapter *, int, bool);
1166void t4_os_dump_devlog(struct adapter *);
1167
1168#ifdef DEV_NETMAP
1169/* t4_netmap.c */
1170struct sge_nm_rxq;
1171void cxgbe_nm_attach(struct vi_info *);
1172void cxgbe_nm_detach(struct vi_info *);
1173void service_nm_rxq(struct sge_nm_rxq *);
1174#endif
1175
1176/* t4_sge.c */
1177void t4_sge_modload(void);
1178void t4_sge_modunload(void);
1179uint64_t t4_sge_extfree_refs(void);
1180void t4_tweak_chip_settings(struct adapter *);
1181int t4_read_chip_settings(struct adapter *);
1182int t4_create_dma_tag(struct adapter *);
1183void t4_sge_sysctls(struct adapter *, struct sysctl_ctx_list *,
1184    struct sysctl_oid_list *);
1185int t4_destroy_dma_tag(struct adapter *);
1186int t4_setup_adapter_queues(struct adapter *);
1187int t4_teardown_adapter_queues(struct adapter *);
1188int t4_setup_vi_queues(struct vi_info *);
1189int t4_teardown_vi_queues(struct vi_info *);
1190void t4_intr_all(void *);
1191void t4_intr(void *);
1192#ifdef DEV_NETMAP
1193void t4_nm_intr(void *);
1194void t4_vi_intr(void *);
1195#endif
1196void t4_intr_err(void *);
1197void t4_intr_evt(void *);
1198void t4_wrq_tx_locked(struct adapter *, struct sge_wrq *, struct wrqe *);
1199void t4_update_fl_bufsize(struct ifnet *);
1200int parse_pkt(struct adapter *, struct mbuf **);
1201void *start_wrq_wr(struct sge_wrq *, int, struct wrq_cookie *);
1202void commit_wrq_wr(struct sge_wrq *, void *, struct wrq_cookie *);
1203int tnl_cong(struct port_info *, int);
1204void t4_register_an_handler(an_handler_t);
1205void t4_register_fw_msg_handler(int, fw_msg_handler_t);
1206void t4_register_cpl_handler(int, cpl_handler_t);
1207void t4_register_shared_cpl_handler(int, cpl_handler_t, int);
1208
1209/* t4_tracer.c */
1210struct t4_tracer;
1211void t4_tracer_modload(void);
1212void t4_tracer_modunload(void);
1213void t4_tracer_port_detach(struct adapter *);
1214int t4_get_tracer(struct adapter *, struct t4_tracer *);
1215int t4_set_tracer(struct adapter *, struct t4_tracer *);
1216int t4_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1217int t5_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1218
1219/* t4_sched.c */
1220int t4_set_sched_class(struct adapter *, struct t4_sched_params *);
1221int t4_set_sched_queue(struct adapter *, struct t4_sched_queue *);
1222int t4_init_tx_sched(struct adapter *);
1223int t4_free_tx_sched(struct adapter *);
1224void t4_update_tx_sched(struct adapter *);
1225int t4_reserve_cl_rl_kbps(struct adapter *, int, u_int, int *);
1226void t4_release_cl_rl(struct adapter *, int, int);
1227int sysctl_tc(SYSCTL_HANDLER_ARGS);
1228int sysctl_tc_params(SYSCTL_HANDLER_ARGS);
1229
1230/* t4_filter.c */
1231int get_filter_mode(struct adapter *, uint32_t *);
1232int set_filter_mode(struct adapter *, uint32_t);
1233int get_filter(struct adapter *, struct t4_filter *);
1234int set_filter(struct adapter *, struct t4_filter *);
1235int del_filter(struct adapter *, struct t4_filter *);
1236int t4_filter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1237int t4_hashfilter_ao_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1238int t4_hashfilter_tcb_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1239int t4_del_hashfilter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1240void free_hftid_hash(struct tid_info *);
1241
1242static inline struct wrqe *
1243alloc_wrqe(int wr_len, struct sge_wrq *wrq)
1244{
1245	int len = offsetof(struct wrqe, wr) + wr_len;
1246	struct wrqe *wr;
1247
1248	wr = malloc(len, M_CXGBE, M_NOWAIT);
1249	if (__predict_false(wr == NULL))
1250		return (NULL);
1251	wr->wr_len = wr_len;
1252	wr->wrq = wrq;
1253	return (wr);
1254}
1255
1256static inline void *
1257wrtod(struct wrqe *wr)
1258{
1259	return (&wr->wr[0]);
1260}
1261
1262static inline void
1263free_wrqe(struct wrqe *wr)
1264{
1265	free(wr, M_CXGBE);
1266}
1267
1268static inline void
1269t4_wrq_tx(struct adapter *sc, struct wrqe *wr)
1270{
1271	struct sge_wrq *wrq = wr->wrq;
1272
1273	TXQ_LOCK(wrq);
1274	t4_wrq_tx_locked(sc, wrq, wr);
1275	TXQ_UNLOCK(wrq);
1276}
1277
1278static inline int
1279read_via_memwin(struct adapter *sc, int idx, uint32_t addr, uint32_t *val,
1280    int len)
1281{
1282
1283	return (rw_via_memwin(sc, idx, addr, val, len, 0));
1284}
1285
1286static inline int
1287write_via_memwin(struct adapter *sc, int idx, uint32_t addr,
1288    const uint32_t *val, int len)
1289{
1290
1291	return (rw_via_memwin(sc, idx, addr, (void *)(uintptr_t)val, len, 1));
1292}
1293#endif
1294