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14#ifndef __LIBCXGBI_H__
15#define __LIBCXGBI_H__
16
17#include <linux/kernel.h>
18#include <linux/errno.h>
19#include <linux/types.h>
20#include <linux/debugfs.h>
21#include <linux/list.h>
22#include <linux/netdevice.h>
23#include <linux/if_vlan.h>
24#include <linux/scatterlist.h>
25#include <linux/skbuff.h>
26#include <linux/vmalloc.h>
27#include <scsi/scsi_device.h>
28#include <scsi/libiscsi_tcp.h>
29
30enum cxgbi_dbg_flag {
31 CXGBI_DBG_ISCSI,
32 CXGBI_DBG_DDP,
33 CXGBI_DBG_TOE,
34 CXGBI_DBG_SOCK,
35
36 CXGBI_DBG_PDU_TX,
37 CXGBI_DBG_PDU_RX,
38 CXGBI_DBG_DEV,
39};
40
41#define log_debug(level, fmt, ...) \
42 do { \
43 if (dbg_level & (level)) \
44 pr_info(fmt, ##__VA_ARGS__); \
45 } while (0)
46
47#define pr_info_ipaddr(fmt_trail, \
48 addr1, addr2, args_trail...) \
49do { \
50 if (!((1 << CXGBI_DBG_SOCK) & dbg_level)) \
51 break; \
52 pr_info("%pISpc - %pISpc, " fmt_trail, \
53 addr1, addr2, args_trail); \
54} while (0)
55
56
57#define CXGBI_MAX_CONN 16384
58
59
60#define SKB_TX_ISCSI_PDU_HEADER_MAX \
61 (sizeof(struct iscsi_hdr) + ISCSI_MAX_AHS_SIZE)
62
63#define ISCSI_PDU_NONPAYLOAD_LEN 312
64
65
66
67
68#define cxgbi_align_pdu_size(n) do { n = (n) & (~511); } while (0)
69
70#define ULP2_MODE_ISCSI 2
71
72#define ULP2_MAX_PKT_SIZE 16224
73#define ULP2_MAX_PDU_PAYLOAD \
74 (ULP2_MAX_PKT_SIZE - ISCSI_PDU_NONPAYLOAD_LEN)
75
76
77
78
79
80
81static const unsigned int ulp2_extra_len[] = { 0, 4, 4, 8 };
82static inline unsigned int cxgbi_ulp_extra_len(int submode)
83{
84 return ulp2_extra_len[submode & 3];
85}
86
87
88
89
90
91#define CPL_RX_DDP_STATUS_DDP_SHIFT 16
92#define CPL_RX_DDP_STATUS_PAD_SHIFT 19
93#define CPL_RX_DDP_STATUS_HCRC_SHIFT 20
94#define CPL_RX_DDP_STATUS_DCRC_SHIFT 21
95
96struct cxgbi_pagepod_hdr {
97 u32 vld_tid;
98 u32 pgsz_tag_clr;
99 u32 max_offset;
100 u32 page_offset;
101 u64 rsvd;
102};
103
104#define PPOD_PAGES_MAX 4
105struct cxgbi_pagepod {
106 struct cxgbi_pagepod_hdr hdr;
107 u64 addr[PPOD_PAGES_MAX + 1];
108};
109
110struct cxgbi_tag_format {
111 unsigned char sw_bits;
112 unsigned char rsvd_bits;
113 unsigned char rsvd_shift;
114 unsigned char filler[1];
115 u32 rsvd_mask;
116};
117
118struct cxgbi_gather_list {
119 unsigned int tag;
120 unsigned int length;
121 unsigned int offset;
122 unsigned int nelem;
123 struct page **pages;
124 dma_addr_t phys_addr[0];
125};
126
127struct cxgbi_ddp_info {
128 struct kref refcnt;
129 struct cxgbi_device *cdev;
130 struct pci_dev *pdev;
131 unsigned int max_txsz;
132 unsigned int max_rxsz;
133 unsigned int llimit;
134 unsigned int ulimit;
135 unsigned int nppods;
136 unsigned int idx_last;
137 unsigned char idx_bits;
138 unsigned char filler[3];
139 unsigned int idx_mask;
140 unsigned int rsvd_tag_mask;
141 spinlock_t map_lock;
142 struct cxgbi_gather_list **gl_map;
143};
144
145#define DDP_PGIDX_MAX 4
146#define DDP_THRESHOLD 2048
147
148#define PPOD_PAGES_SHIFT 2
149
150#define PPOD_SIZE sizeof(struct cxgbi_pagepod)
151#define PPOD_SIZE_SHIFT 6
152
153#define ULPMEM_DSGL_MAX_NPPODS 16
154#define ULPMEM_IDATA_MAX_NPPODS 4
155#define PCIE_MEMWIN_MAX_NPPODS 16
156
157#define PPOD_COLOR_SHIFT 0
158#define PPOD_COLOR(x) ((x) << PPOD_COLOR_SHIFT)
159
160#define PPOD_IDX_SHIFT 6
161#define PPOD_IDX_MAX_SIZE 24
162
163#define PPOD_TID_SHIFT 0
164#define PPOD_TID(x) ((x) << PPOD_TID_SHIFT)
165
166#define PPOD_TAG_SHIFT 6
167#define PPOD_TAG(x) ((x) << PPOD_TAG_SHIFT)
168
169#define PPOD_VALID_SHIFT 24
170#define PPOD_VALID(x) ((x) << PPOD_VALID_SHIFT)
171#define PPOD_VALID_FLAG PPOD_VALID(1U)
172
173
174
175
176
177
178struct sge_opaque_hdr {
179 void *dev;
180 dma_addr_t addr[MAX_SKB_FRAGS + 1];
181};
182
183struct cxgbi_sock {
184 struct cxgbi_device *cdev;
185
186 int tid;
187 int atid;
188 unsigned long flags;
189 unsigned int mtu;
190 unsigned short rss_qid;
191 unsigned short txq_idx;
192 unsigned short advmss;
193 unsigned int tx_chan;
194 unsigned int rx_chan;
195 unsigned int mss_idx;
196 unsigned int smac_idx;
197 unsigned char port_id;
198 int wr_max_cred;
199 int wr_cred;
200 int wr_una_cred;
201 unsigned char hcrc_len;
202 unsigned char dcrc_len;
203
204 void *l2t;
205 struct sk_buff *wr_pending_head;
206 struct sk_buff *wr_pending_tail;
207 struct sk_buff *cpl_close;
208 struct sk_buff *cpl_abort_req;
209 struct sk_buff *cpl_abort_rpl;
210 struct sk_buff *skb_ulp_lhdr;
211 spinlock_t lock;
212 struct kref refcnt;
213 unsigned int state;
214 unsigned int csk_family;
215 union {
216 struct sockaddr_in saddr;
217 struct sockaddr_in6 saddr6;
218 };
219 union {
220 struct sockaddr_in daddr;
221 struct sockaddr_in6 daddr6;
222 };
223 struct dst_entry *dst;
224 struct sk_buff_head receive_queue;
225 struct sk_buff_head write_queue;
226 struct timer_list retry_timer;
227 int err;
228 rwlock_t callback_lock;
229 void *user_data;
230
231 u32 rcv_nxt;
232 u32 copied_seq;
233 u32 rcv_wup;
234 u32 snd_nxt;
235 u32 snd_una;
236 u32 write_seq;
237 u32 snd_win;
238 u32 rcv_win;
239};
240
241
242
243
244enum cxgbi_sock_states{
245 CTP_CLOSED,
246 CTP_CONNECTING,
247 CTP_ACTIVE_OPEN,
248 CTP_ESTABLISHED,
249 CTP_ACTIVE_CLOSE,
250 CTP_PASSIVE_CLOSE,
251 CTP_CLOSE_WAIT_1,
252 CTP_CLOSE_WAIT_2,
253 CTP_ABORTING,
254};
255
256
257
258
259enum cxgbi_sock_flags {
260 CTPF_ABORT_RPL_RCVD,
261 CTPF_ABORT_REQ_RCVD,
262 CTPF_ABORT_RPL_PENDING,
263 CTPF_TX_DATA_SENT,
264 CTPF_ACTIVE_CLOSE_NEEDED,
265 CTPF_HAS_ATID,
266 CTPF_HAS_TID,
267 CTPF_OFFLOAD_DOWN,
268};
269
270struct cxgbi_skb_rx_cb {
271 __u32 ddigest;
272 __u32 pdulen;
273};
274
275struct cxgbi_skb_tx_cb {
276 void *l2t;
277 struct sk_buff *wr_next;
278};
279
280enum cxgbi_skcb_flags {
281 SKCBF_TX_NEED_HDR,
282 SKCBF_RX_COALESCED,
283 SKCBF_RX_HDR,
284 SKCBF_RX_DATA,
285 SKCBF_RX_STATUS,
286 SKCBF_RX_DATA_DDPD,
287 SKCBF_RX_HCRC_ERR,
288 SKCBF_RX_DCRC_ERR,
289 SKCBF_RX_PAD_ERR,
290};
291
292struct cxgbi_skb_cb {
293 unsigned char ulp_mode;
294 unsigned long flags;
295 unsigned int seq;
296 union {
297 struct cxgbi_skb_rx_cb rx;
298 struct cxgbi_skb_tx_cb tx;
299 };
300};
301
302#define CXGBI_SKB_CB(skb) ((struct cxgbi_skb_cb *)&((skb)->cb[0]))
303#define cxgbi_skcb_flags(skb) (CXGBI_SKB_CB(skb)->flags)
304#define cxgbi_skcb_ulp_mode(skb) (CXGBI_SKB_CB(skb)->ulp_mode)
305#define cxgbi_skcb_tcp_seq(skb) (CXGBI_SKB_CB(skb)->seq)
306#define cxgbi_skcb_rx_ddigest(skb) (CXGBI_SKB_CB(skb)->rx.ddigest)
307#define cxgbi_skcb_rx_pdulen(skb) (CXGBI_SKB_CB(skb)->rx.pdulen)
308#define cxgbi_skcb_tx_wr_next(skb) (CXGBI_SKB_CB(skb)->tx.wr_next)
309
310static inline void cxgbi_skcb_set_flag(struct sk_buff *skb,
311 enum cxgbi_skcb_flags flag)
312{
313 __set_bit(flag, &(cxgbi_skcb_flags(skb)));
314}
315
316static inline void cxgbi_skcb_clear_flag(struct sk_buff *skb,
317 enum cxgbi_skcb_flags flag)
318{
319 __clear_bit(flag, &(cxgbi_skcb_flags(skb)));
320}
321
322static inline int cxgbi_skcb_test_flag(const struct sk_buff *skb,
323 enum cxgbi_skcb_flags flag)
324{
325 return test_bit(flag, &(cxgbi_skcb_flags(skb)));
326}
327
328static inline void cxgbi_sock_set_flag(struct cxgbi_sock *csk,
329 enum cxgbi_sock_flags flag)
330{
331 __set_bit(flag, &csk->flags);
332 log_debug(1 << CXGBI_DBG_SOCK,
333 "csk 0x%p,%u,0x%lx, bit %d.\n",
334 csk, csk->state, csk->flags, flag);
335}
336
337static inline void cxgbi_sock_clear_flag(struct cxgbi_sock *csk,
338 enum cxgbi_sock_flags flag)
339{
340 __clear_bit(flag, &csk->flags);
341 log_debug(1 << CXGBI_DBG_SOCK,
342 "csk 0x%p,%u,0x%lx, bit %d.\n",
343 csk, csk->state, csk->flags, flag);
344}
345
346static inline int cxgbi_sock_flag(struct cxgbi_sock *csk,
347 enum cxgbi_sock_flags flag)
348{
349 if (csk == NULL)
350 return 0;
351 return test_bit(flag, &csk->flags);
352}
353
354static inline void cxgbi_sock_set_state(struct cxgbi_sock *csk, int state)
355{
356 log_debug(1 << CXGBI_DBG_SOCK,
357 "csk 0x%p,%u,0x%lx, state -> %u.\n",
358 csk, csk->state, csk->flags, state);
359 csk->state = state;
360}
361
362static inline void cxgbi_sock_free(struct kref *kref)
363{
364 struct cxgbi_sock *csk = container_of(kref,
365 struct cxgbi_sock,
366 refcnt);
367 if (csk) {
368 log_debug(1 << CXGBI_DBG_SOCK,
369 "free csk 0x%p, state %u, flags 0x%lx\n",
370 csk, csk->state, csk->flags);
371 kfree(csk);
372 }
373}
374
375static inline void __cxgbi_sock_put(const char *fn, struct cxgbi_sock *csk)
376{
377 log_debug(1 << CXGBI_DBG_SOCK,
378 "%s, put csk 0x%p, ref %u-1.\n",
379 fn, csk, atomic_read(&csk->refcnt.refcount));
380 kref_put(&csk->refcnt, cxgbi_sock_free);
381}
382#define cxgbi_sock_put(csk) __cxgbi_sock_put(__func__, csk)
383
384static inline void __cxgbi_sock_get(const char *fn, struct cxgbi_sock *csk)
385{
386 log_debug(1 << CXGBI_DBG_SOCK,
387 "%s, get csk 0x%p, ref %u+1.\n",
388 fn, csk, atomic_read(&csk->refcnt.refcount));
389 kref_get(&csk->refcnt);
390}
391#define cxgbi_sock_get(csk) __cxgbi_sock_get(__func__, csk)
392
393static inline int cxgbi_sock_is_closing(struct cxgbi_sock *csk)
394{
395 return csk->state >= CTP_ACTIVE_CLOSE;
396}
397
398static inline int cxgbi_sock_is_established(struct cxgbi_sock *csk)
399{
400 return csk->state == CTP_ESTABLISHED;
401}
402
403static inline void cxgbi_sock_purge_write_queue(struct cxgbi_sock *csk)
404{
405 struct sk_buff *skb;
406
407 while ((skb = __skb_dequeue(&csk->write_queue)))
408 __kfree_skb(skb);
409}
410
411static inline unsigned int cxgbi_sock_compute_wscale(unsigned int win)
412{
413 unsigned int wscale = 0;
414
415 while (wscale < 14 && (65535 << wscale) < win)
416 wscale++;
417 return wscale;
418}
419
420static inline struct sk_buff *alloc_wr(int wrlen, int dlen, gfp_t gfp)
421{
422 struct sk_buff *skb = alloc_skb(wrlen + dlen, gfp);
423
424 if (skb) {
425 __skb_put(skb, wrlen);
426 memset(skb->head, 0, wrlen + dlen);
427 } else
428 pr_info("alloc cpl wr skb %u+%u, OOM.\n", wrlen, dlen);
429 return skb;
430}
431
432
433
434
435
436
437
438
439#define SKB_WR_LIST_SIZE (MAX_SKB_FRAGS + 2)
440
441static inline void cxgbi_sock_reset_wr_list(struct cxgbi_sock *csk)
442{
443 csk->wr_pending_head = csk->wr_pending_tail = NULL;
444}
445
446static inline void cxgbi_sock_enqueue_wr(struct cxgbi_sock *csk,
447 struct sk_buff *skb)
448{
449 cxgbi_skcb_tx_wr_next(skb) = NULL;
450
451
452
453
454
455
456 atomic_set(&skb->users, 2);
457
458 if (!csk->wr_pending_head)
459 csk->wr_pending_head = skb;
460 else
461 cxgbi_skcb_tx_wr_next(csk->wr_pending_tail) = skb;
462 csk->wr_pending_tail = skb;
463}
464
465static inline int cxgbi_sock_count_pending_wrs(const struct cxgbi_sock *csk)
466{
467 int n = 0;
468 const struct sk_buff *skb = csk->wr_pending_head;
469
470 while (skb) {
471 n += skb->csum;
472 skb = cxgbi_skcb_tx_wr_next(skb);
473 }
474 return n;
475}
476
477static inline struct sk_buff *cxgbi_sock_peek_wr(const struct cxgbi_sock *csk)
478{
479 return csk->wr_pending_head;
480}
481
482static inline struct sk_buff *cxgbi_sock_dequeue_wr(struct cxgbi_sock *csk)
483{
484 struct sk_buff *skb = csk->wr_pending_head;
485
486 if (likely(skb)) {
487 csk->wr_pending_head = cxgbi_skcb_tx_wr_next(skb);
488 cxgbi_skcb_tx_wr_next(skb) = NULL;
489 }
490 return skb;
491}
492
493void cxgbi_sock_check_wr_invariants(const struct cxgbi_sock *);
494void cxgbi_sock_purge_wr_queue(struct cxgbi_sock *);
495void cxgbi_sock_skb_entail(struct cxgbi_sock *, struct sk_buff *);
496void cxgbi_sock_fail_act_open(struct cxgbi_sock *, int);
497void cxgbi_sock_act_open_req_arp_failure(void *, struct sk_buff *);
498void cxgbi_sock_closed(struct cxgbi_sock *);
499void cxgbi_sock_established(struct cxgbi_sock *, unsigned int, unsigned int);
500void cxgbi_sock_rcv_abort_rpl(struct cxgbi_sock *);
501void cxgbi_sock_rcv_peer_close(struct cxgbi_sock *);
502void cxgbi_sock_rcv_close_conn_rpl(struct cxgbi_sock *, u32);
503void cxgbi_sock_rcv_wr_ack(struct cxgbi_sock *, unsigned int, unsigned int,
504 int);
505unsigned int cxgbi_sock_select_mss(struct cxgbi_sock *, unsigned int);
506void cxgbi_sock_free_cpl_skbs(struct cxgbi_sock *);
507
508struct cxgbi_hba {
509 struct net_device *ndev;
510 struct net_device *vdev;
511 struct Scsi_Host *shost;
512 struct cxgbi_device *cdev;
513 __be32 ipv4addr;
514 unsigned char port_id;
515};
516
517struct cxgbi_ports_map {
518 unsigned int max_connect;
519 unsigned int used;
520 unsigned short sport_base;
521 spinlock_t lock;
522 unsigned int next;
523 struct cxgbi_sock **port_csk;
524};
525
526#define CXGBI_FLAG_DEV_T3 0x1
527#define CXGBI_FLAG_DEV_T4 0x2
528#define CXGBI_FLAG_ADAPTER_RESET 0x4
529#define CXGBI_FLAG_IPV4_SET 0x10
530struct cxgbi_device {
531 struct list_head list_head;
532 struct list_head rcu_node;
533 unsigned int flags;
534 struct net_device **ports;
535 void *lldev;
536 struct cxgbi_hba **hbas;
537 const unsigned short *mtus;
538 unsigned char nmtus;
539 unsigned char nports;
540 struct pci_dev *pdev;
541 struct dentry *debugfs_root;
542 struct iscsi_transport *itp;
543
544 unsigned int pfvf;
545 unsigned int rx_credit_thres;
546 unsigned int skb_tx_rsvd;
547 unsigned int skb_rx_extra;
548 unsigned int tx_max_size;
549 unsigned int rx_max_size;
550 struct cxgbi_ports_map pmap;
551 struct cxgbi_tag_format tag_format;
552 struct cxgbi_ddp_info *ddp;
553
554 void (*dev_ddp_cleanup)(struct cxgbi_device *);
555 int (*csk_ddp_set)(struct cxgbi_sock *, struct cxgbi_pagepod_hdr *,
556 unsigned int, unsigned int,
557 struct cxgbi_gather_list *);
558 void (*csk_ddp_clear)(struct cxgbi_hba *,
559 unsigned int, unsigned int, unsigned int);
560 int (*csk_ddp_setup_digest)(struct cxgbi_sock *,
561 unsigned int, int, int, int);
562 int (*csk_ddp_setup_pgidx)(struct cxgbi_sock *,
563 unsigned int, int, bool);
564
565 void (*csk_release_offload_resources)(struct cxgbi_sock *);
566 int (*csk_rx_pdu_ready)(struct cxgbi_sock *, struct sk_buff *);
567 u32 (*csk_send_rx_credits)(struct cxgbi_sock *, u32);
568 int (*csk_push_tx_frames)(struct cxgbi_sock *, int);
569 void (*csk_send_abort_req)(struct cxgbi_sock *);
570 void (*csk_send_close_req)(struct cxgbi_sock *);
571 int (*csk_alloc_cpls)(struct cxgbi_sock *);
572 int (*csk_init_act_open)(struct cxgbi_sock *);
573
574 void *dd_data;
575};
576#define cxgbi_cdev_priv(cdev) ((cdev)->dd_data)
577
578struct cxgbi_conn {
579 struct cxgbi_endpoint *cep;
580 struct iscsi_conn *iconn;
581 struct cxgbi_hba *chba;
582 u32 task_idx_bits;
583};
584
585struct cxgbi_endpoint {
586 struct cxgbi_conn *cconn;
587 struct cxgbi_hba *chba;
588 struct cxgbi_sock *csk;
589};
590
591#define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512)
592struct cxgbi_task_data {
593 unsigned short nr_frags;
594 struct page_frag frags[MAX_PDU_FRAGS];
595 struct sk_buff *skb;
596 unsigned int offset;
597 unsigned int count;
598 unsigned int sgoffset;
599};
600#define iscsi_task_cxgbi_data(task) \
601 ((task)->dd_data + sizeof(struct iscsi_tcp_task))
602
603static inline int cxgbi_is_ddp_tag(struct cxgbi_tag_format *tformat, u32 tag)
604{
605 return !(tag & (1 << (tformat->rsvd_bits + tformat->rsvd_shift - 1)));
606}
607
608static inline int cxgbi_sw_tag_usable(struct cxgbi_tag_format *tformat,
609 u32 sw_tag)
610{
611 sw_tag >>= (32 - tformat->rsvd_bits);
612 return !sw_tag;
613}
614
615static inline u32 cxgbi_set_non_ddp_tag(struct cxgbi_tag_format *tformat,
616 u32 sw_tag)
617{
618 unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1;
619 u32 mask = (1 << shift) - 1;
620
621 if (sw_tag && (sw_tag & ~mask)) {
622 u32 v1 = sw_tag & ((1 << shift) - 1);
623 u32 v2 = (sw_tag >> (shift - 1)) << shift;
624
625 return v2 | v1 | 1 << shift;
626 }
627
628 return sw_tag | 1 << shift;
629}
630
631static inline u32 cxgbi_ddp_tag_base(struct cxgbi_tag_format *tformat,
632 u32 sw_tag)
633{
634 u32 mask = (1 << tformat->rsvd_shift) - 1;
635
636 if (sw_tag && (sw_tag & ~mask)) {
637 u32 v1 = sw_tag & mask;
638 u32 v2 = sw_tag >> tformat->rsvd_shift;
639
640 v2 <<= tformat->rsvd_bits + tformat->rsvd_shift;
641
642 return v2 | v1;
643 }
644
645 return sw_tag;
646}
647
648static inline u32 cxgbi_tag_rsvd_bits(struct cxgbi_tag_format *tformat,
649 u32 tag)
650{
651 if (cxgbi_is_ddp_tag(tformat, tag))
652 return (tag >> tformat->rsvd_shift) & tformat->rsvd_mask;
653
654 return 0;
655}
656
657static inline u32 cxgbi_tag_nonrsvd_bits(struct cxgbi_tag_format *tformat,
658 u32 tag)
659{
660 unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1;
661 u32 v1, v2;
662
663 if (cxgbi_is_ddp_tag(tformat, tag)) {
664 v1 = tag & ((1 << tformat->rsvd_shift) - 1);
665 v2 = (tag >> (shift + 1)) << tformat->rsvd_shift;
666 } else {
667 u32 mask = (1 << shift) - 1;
668 tag &= ~(1 << shift);
669 v1 = tag & mask;
670 v2 = (tag >> 1) & ~mask;
671 }
672 return v1 | v2;
673}
674
675static inline void *cxgbi_alloc_big_mem(unsigned int size,
676 gfp_t gfp)
677{
678 void *p = kzalloc(size, gfp | __GFP_NOWARN);
679
680 if (!p)
681 p = vzalloc(size);
682
683 return p;
684}
685
686static inline void cxgbi_free_big_mem(void *addr)
687{
688 kvfree(addr);
689}
690
691static inline void cxgbi_set_iscsi_ipv4(struct cxgbi_hba *chba, __be32 ipaddr)
692{
693 if (chba->cdev->flags & CXGBI_FLAG_IPV4_SET)
694 chba->ipv4addr = ipaddr;
695 else
696 pr_info("set iscsi ipv4 NOT supported, using %s ipv4.\n",
697 chba->ndev->name);
698}
699
700struct cxgbi_device *cxgbi_device_register(unsigned int, unsigned int);
701void cxgbi_device_unregister(struct cxgbi_device *);
702void cxgbi_device_unregister_all(unsigned int flag);
703struct cxgbi_device *cxgbi_device_find_by_lldev(void *);
704struct cxgbi_device *cxgbi_device_find_by_netdev(struct net_device *, int *);
705struct cxgbi_device *cxgbi_device_find_by_netdev_rcu(struct net_device *,
706 int *);
707int cxgbi_hbas_add(struct cxgbi_device *, u64, unsigned int,
708 struct scsi_host_template *,
709 struct scsi_transport_template *);
710void cxgbi_hbas_remove(struct cxgbi_device *);
711
712int cxgbi_device_portmap_create(struct cxgbi_device *cdev, unsigned int base,
713 unsigned int max_conn);
714void cxgbi_device_portmap_cleanup(struct cxgbi_device *cdev);
715
716void cxgbi_conn_tx_open(struct cxgbi_sock *);
717void cxgbi_conn_pdu_ready(struct cxgbi_sock *);
718int cxgbi_conn_alloc_pdu(struct iscsi_task *, u8);
719int cxgbi_conn_init_pdu(struct iscsi_task *, unsigned int , unsigned int);
720int cxgbi_conn_xmit_pdu(struct iscsi_task *);
721
722void cxgbi_cleanup_task(struct iscsi_task *task);
723
724umode_t cxgbi_attr_is_visible(int param_type, int param);
725void cxgbi_get_conn_stats(struct iscsi_cls_conn *, struct iscsi_stats *);
726int cxgbi_set_conn_param(struct iscsi_cls_conn *,
727 enum iscsi_param, char *, int);
728int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param, char *);
729struct iscsi_cls_conn *cxgbi_create_conn(struct iscsi_cls_session *, u32);
730int cxgbi_bind_conn(struct iscsi_cls_session *,
731 struct iscsi_cls_conn *, u64, int);
732void cxgbi_destroy_session(struct iscsi_cls_session *);
733struct iscsi_cls_session *cxgbi_create_session(struct iscsi_endpoint *,
734 u16, u16, u32);
735int cxgbi_set_host_param(struct Scsi_Host *,
736 enum iscsi_host_param, char *, int);
737int cxgbi_get_host_param(struct Scsi_Host *, enum iscsi_host_param, char *);
738struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *,
739 struct sockaddr *, int);
740int cxgbi_ep_poll(struct iscsi_endpoint *, int);
741void cxgbi_ep_disconnect(struct iscsi_endpoint *);
742
743int cxgbi_iscsi_init(struct iscsi_transport *,
744 struct scsi_transport_template **);
745void cxgbi_iscsi_cleanup(struct iscsi_transport *,
746 struct scsi_transport_template **);
747void cxgbi_parse_pdu_itt(struct iscsi_conn *, itt_t, int *, int *);
748int cxgbi_ddp_init(struct cxgbi_device *, unsigned int, unsigned int,
749 unsigned int, unsigned int);
750int cxgbi_ddp_cleanup(struct cxgbi_device *);
751void cxgbi_ddp_page_size_factor(int *);
752void cxgbi_ddp_ppod_clear(struct cxgbi_pagepod *);
753void cxgbi_ddp_ppod_set(struct cxgbi_pagepod *, struct cxgbi_pagepod_hdr *,
754 struct cxgbi_gather_list *, unsigned int);
755#endif
756
