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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
48#define CXGBI_MAX_CONN 16384
49
50
51#define SKB_TX_ISCSI_PDU_HEADER_MAX \
52 (sizeof(struct iscsi_hdr) + ISCSI_MAX_AHS_SIZE)
53
54#define ISCSI_PDU_NONPAYLOAD_LEN 312
55
56
57
58
59#define cxgbi_align_pdu_size(n) do { n = (n) & (~511); } while (0)
60
61#define ULP2_MODE_ISCSI 2
62
63#define ULP2_MAX_PKT_SIZE 16224
64#define ULP2_MAX_PDU_PAYLOAD \
65 (ULP2_MAX_PKT_SIZE - ISCSI_PDU_NONPAYLOAD_LEN)
66
67
68
69
70
71
72static const unsigned int ulp2_extra_len[] = { 0, 4, 4, 8 };
73static inline unsigned int cxgbi_ulp_extra_len(int submode)
74{
75 return ulp2_extra_len[submode & 3];
76}
77
78
79
80
81
82#define CPL_RX_DDP_STATUS_DDP_SHIFT 16
83#define CPL_RX_DDP_STATUS_PAD_SHIFT 19
84#define CPL_RX_DDP_STATUS_HCRC_SHIFT 20
85#define CPL_RX_DDP_STATUS_DCRC_SHIFT 21
86
87struct cxgbi_pagepod_hdr {
88 u32 vld_tid;
89 u32 pgsz_tag_clr;
90 u32 max_offset;
91 u32 page_offset;
92 u64 rsvd;
93};
94
95#define PPOD_PAGES_MAX 4
96struct cxgbi_pagepod {
97 struct cxgbi_pagepod_hdr hdr;
98 u64 addr[PPOD_PAGES_MAX + 1];
99};
100
101struct cxgbi_tag_format {
102 unsigned char sw_bits;
103 unsigned char rsvd_bits;
104 unsigned char rsvd_shift;
105 unsigned char filler[1];
106 u32 rsvd_mask;
107};
108
109struct cxgbi_gather_list {
110 unsigned int tag;
111 unsigned int length;
112 unsigned int offset;
113 unsigned int nelem;
114 struct page **pages;
115 dma_addr_t phys_addr[0];
116};
117
118struct cxgbi_ddp_info {
119 struct kref refcnt;
120 struct cxgbi_device *cdev;
121 struct pci_dev *pdev;
122 unsigned int max_txsz;
123 unsigned int max_rxsz;
124 unsigned int llimit;
125 unsigned int ulimit;
126 unsigned int nppods;
127 unsigned int idx_last;
128 unsigned char idx_bits;
129 unsigned char filler[3];
130 unsigned int idx_mask;
131 unsigned int rsvd_tag_mask;
132 spinlock_t map_lock;
133 struct cxgbi_gather_list **gl_map;
134};
135
136#define DDP_PGIDX_MAX 4
137#define DDP_THRESHOLD 2048
138
139#define PPOD_PAGES_SHIFT 2
140
141#define PPOD_SIZE sizeof(struct cxgbi_pagepod)
142#define PPOD_SIZE_SHIFT 6
143
144#define ULPMEM_DSGL_MAX_NPPODS 16
145#define ULPMEM_IDATA_MAX_NPPODS 4
146#define PCIE_MEMWIN_MAX_NPPODS 16
147
148#define PPOD_COLOR_SHIFT 0
149#define PPOD_COLOR(x) ((x) << PPOD_COLOR_SHIFT)
150
151#define PPOD_IDX_SHIFT 6
152#define PPOD_IDX_MAX_SIZE 24
153
154#define PPOD_TID_SHIFT 0
155#define PPOD_TID(x) ((x) << PPOD_TID_SHIFT)
156
157#define PPOD_TAG_SHIFT 6
158#define PPOD_TAG(x) ((x) << PPOD_TAG_SHIFT)
159
160#define PPOD_VALID_SHIFT 24
161#define PPOD_VALID(x) ((x) << PPOD_VALID_SHIFT)
162#define PPOD_VALID_FLAG PPOD_VALID(1U)
163
164
165
166
167
168
169struct sge_opaque_hdr {
170 void *dev;
171 dma_addr_t addr[MAX_SKB_FRAGS + 1];
172};
173
174struct cxgbi_sock {
175 struct cxgbi_device *cdev;
176
177 int tid;
178 int atid;
179 unsigned long flags;
180 unsigned int mtu;
181 unsigned short rss_qid;
182 unsigned short txq_idx;
183 unsigned short advmss;
184 unsigned int tx_chan;
185 unsigned int rx_chan;
186 unsigned int mss_idx;
187 unsigned int smac_idx;
188 unsigned char port_id;
189 int wr_max_cred;
190 int wr_cred;
191 int wr_una_cred;
192 unsigned char hcrc_len;
193 unsigned char dcrc_len;
194
195 void *l2t;
196 struct sk_buff *wr_pending_head;
197 struct sk_buff *wr_pending_tail;
198 struct sk_buff *cpl_close;
199 struct sk_buff *cpl_abort_req;
200 struct sk_buff *cpl_abort_rpl;
201 struct sk_buff *skb_ulp_lhdr;
202 spinlock_t lock;
203 struct kref refcnt;
204 unsigned int state;
205 struct sockaddr_in saddr;
206 struct sockaddr_in daddr;
207 struct dst_entry *dst;
208 struct sk_buff_head receive_queue;
209 struct sk_buff_head write_queue;
210 struct timer_list retry_timer;
211 int err;
212 rwlock_t callback_lock;
213 void *user_data;
214
215 u32 rcv_nxt;
216 u32 copied_seq;
217 u32 rcv_wup;
218 u32 snd_nxt;
219 u32 snd_una;
220 u32 write_seq;
221};
222
223
224
225
226enum cxgbi_sock_states{
227 CTP_CLOSED,
228 CTP_CONNECTING,
229 CTP_ACTIVE_OPEN,
230 CTP_ESTABLISHED,
231 CTP_ACTIVE_CLOSE,
232 CTP_PASSIVE_CLOSE,
233 CTP_CLOSE_WAIT_1,
234 CTP_CLOSE_WAIT_2,
235 CTP_ABORTING,
236};
237
238
239
240
241enum cxgbi_sock_flags {
242 CTPF_ABORT_RPL_RCVD,
243 CTPF_ABORT_REQ_RCVD,
244 CTPF_ABORT_RPL_PENDING,
245 CTPF_TX_DATA_SENT,
246 CTPF_ACTIVE_CLOSE_NEEDED,
247 CTPF_HAS_ATID,
248 CTPF_HAS_TID,
249 CTPF_OFFLOAD_DOWN,
250};
251
252struct cxgbi_skb_rx_cb {
253 __u32 ddigest;
254 __u32 pdulen;
255};
256
257struct cxgbi_skb_tx_cb {
258 void *l2t;
259 struct sk_buff *wr_next;
260};
261
262enum cxgbi_skcb_flags {
263 SKCBF_TX_NEED_HDR,
264 SKCBF_RX_COALESCED,
265 SKCBF_RX_HDR,
266 SKCBF_RX_DATA,
267 SKCBF_RX_STATUS,
268 SKCBF_RX_DATA_DDPD,
269 SKCBF_RX_HCRC_ERR,
270 SKCBF_RX_DCRC_ERR,
271 SKCBF_RX_PAD_ERR,
272};
273
274struct cxgbi_skb_cb {
275 unsigned char ulp_mode;
276 unsigned long flags;
277 unsigned int seq;
278 union {
279 struct cxgbi_skb_rx_cb rx;
280 struct cxgbi_skb_tx_cb tx;
281 };
282};
283
284#define CXGBI_SKB_CB(skb) ((struct cxgbi_skb_cb *)&((skb)->cb[0]))
285#define cxgbi_skcb_flags(skb) (CXGBI_SKB_CB(skb)->flags)
286#define cxgbi_skcb_ulp_mode(skb) (CXGBI_SKB_CB(skb)->ulp_mode)
287#define cxgbi_skcb_tcp_seq(skb) (CXGBI_SKB_CB(skb)->seq)
288#define cxgbi_skcb_rx_ddigest(skb) (CXGBI_SKB_CB(skb)->rx.ddigest)
289#define cxgbi_skcb_rx_pdulen(skb) (CXGBI_SKB_CB(skb)->rx.pdulen)
290#define cxgbi_skcb_tx_wr_next(skb) (CXGBI_SKB_CB(skb)->tx.wr_next)
291
292static inline void cxgbi_skcb_set_flag(struct sk_buff *skb,
293 enum cxgbi_skcb_flags flag)
294{
295 __set_bit(flag, &(cxgbi_skcb_flags(skb)));
296}
297
298static inline void cxgbi_skcb_clear_flag(struct sk_buff *skb,
299 enum cxgbi_skcb_flags flag)
300{
301 __clear_bit(flag, &(cxgbi_skcb_flags(skb)));
302}
303
304static inline int cxgbi_skcb_test_flag(struct sk_buff *skb,
305 enum cxgbi_skcb_flags flag)
306{
307 return test_bit(flag, &(cxgbi_skcb_flags(skb)));
308}
309
310static inline void cxgbi_sock_set_flag(struct cxgbi_sock *csk,
311 enum cxgbi_sock_flags flag)
312{
313 __set_bit(flag, &csk->flags);
314 log_debug(1 << CXGBI_DBG_SOCK,
315 "csk 0x%p,%u,0x%lx, bit %d.\n",
316 csk, csk->state, csk->flags, flag);
317}
318
319static inline void cxgbi_sock_clear_flag(struct cxgbi_sock *csk,
320 enum cxgbi_sock_flags flag)
321{
322 __clear_bit(flag, &csk->flags);
323 log_debug(1 << CXGBI_DBG_SOCK,
324 "csk 0x%p,%u,0x%lx, bit %d.\n",
325 csk, csk->state, csk->flags, flag);
326}
327
328static inline int cxgbi_sock_flag(struct cxgbi_sock *csk,
329 enum cxgbi_sock_flags flag)
330{
331 if (csk == NULL)
332 return 0;
333 return test_bit(flag, &csk->flags);
334}
335
336static inline void cxgbi_sock_set_state(struct cxgbi_sock *csk, int state)
337{
338 log_debug(1 << CXGBI_DBG_SOCK,
339 "csk 0x%p,%u,0x%lx, state -> %u.\n",
340 csk, csk->state, csk->flags, state);
341 csk->state = state;
342}
343
344static inline void cxgbi_sock_free(struct kref *kref)
345{
346 struct cxgbi_sock *csk = container_of(kref,
347 struct cxgbi_sock,
348 refcnt);
349 if (csk) {
350 log_debug(1 << CXGBI_DBG_SOCK,
351 "free csk 0x%p, state %u, flags 0x%lx\n",
352 csk, csk->state, csk->flags);
353 kfree(csk);
354 }
355}
356
357static inline void __cxgbi_sock_put(const char *fn, struct cxgbi_sock *csk)
358{
359 log_debug(1 << CXGBI_DBG_SOCK,
360 "%s, put csk 0x%p, ref %u-1.\n",
361 fn, csk, atomic_read(&csk->refcnt.refcount));
362 kref_put(&csk->refcnt, cxgbi_sock_free);
363}
364#define cxgbi_sock_put(csk) __cxgbi_sock_put(__func__, csk)
365
366static inline void __cxgbi_sock_get(const char *fn, struct cxgbi_sock *csk)
367{
368 log_debug(1 << CXGBI_DBG_SOCK,
369 "%s, get csk 0x%p, ref %u+1.\n",
370 fn, csk, atomic_read(&csk->refcnt.refcount));
371 kref_get(&csk->refcnt);
372}
373#define cxgbi_sock_get(csk) __cxgbi_sock_get(__func__, csk)
374
375static inline int cxgbi_sock_is_closing(struct cxgbi_sock *csk)
376{
377 return csk->state >= CTP_ACTIVE_CLOSE;
378}
379
380static inline int cxgbi_sock_is_established(struct cxgbi_sock *csk)
381{
382 return csk->state == CTP_ESTABLISHED;
383}
384
385static inline void cxgbi_sock_purge_write_queue(struct cxgbi_sock *csk)
386{
387 struct sk_buff *skb;
388
389 while ((skb = __skb_dequeue(&csk->write_queue)))
390 __kfree_skb(skb);
391}
392
393static inline unsigned int cxgbi_sock_compute_wscale(unsigned int win)
394{
395 unsigned int wscale = 0;
396
397 while (wscale < 14 && (65535 << wscale) < win)
398 wscale++;
399 return wscale;
400}
401
402static inline struct sk_buff *alloc_wr(int wrlen, int dlen, gfp_t gfp)
403{
404 struct sk_buff *skb = alloc_skb(wrlen + dlen, gfp);
405
406 if (skb) {
407 __skb_put(skb, wrlen);
408 memset(skb->head, 0, wrlen + dlen);
409 } else
410 pr_info("alloc cpl wr skb %u+%u, OOM.\n", wrlen, dlen);
411 return skb;
412}
413
414
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417
418
419
420
421#define SKB_WR_LIST_SIZE (MAX_SKB_FRAGS + 2)
422
423static inline void cxgbi_sock_reset_wr_list(struct cxgbi_sock *csk)
424{
425 csk->wr_pending_head = csk->wr_pending_tail = NULL;
426}
427
428static inline void cxgbi_sock_enqueue_wr(struct cxgbi_sock *csk,
429 struct sk_buff *skb)
430{
431 cxgbi_skcb_tx_wr_next(skb) = NULL;
432
433
434
435
436
437
438 atomic_set(&skb->users, 2);
439
440 if (!csk->wr_pending_head)
441 csk->wr_pending_head = skb;
442 else
443 cxgbi_skcb_tx_wr_next(csk->wr_pending_tail) = skb;
444 csk->wr_pending_tail = skb;
445}
446
447static inline int cxgbi_sock_count_pending_wrs(const struct cxgbi_sock *csk)
448{
449 int n = 0;
450 const struct sk_buff *skb = csk->wr_pending_head;
451
452 while (skb) {
453 n += skb->csum;
454 skb = cxgbi_skcb_tx_wr_next(skb);
455 }
456 return n;
457}
458
459static inline struct sk_buff *cxgbi_sock_peek_wr(const struct cxgbi_sock *csk)
460{
461 return csk->wr_pending_head;
462}
463
464static inline struct sk_buff *cxgbi_sock_dequeue_wr(struct cxgbi_sock *csk)
465{
466 struct sk_buff *skb = csk->wr_pending_head;
467
468 if (likely(skb)) {
469 csk->wr_pending_head = cxgbi_skcb_tx_wr_next(skb);
470 cxgbi_skcb_tx_wr_next(skb) = NULL;
471 }
472 return skb;
473}
474
475void cxgbi_sock_check_wr_invariants(const struct cxgbi_sock *);
476void cxgbi_sock_purge_wr_queue(struct cxgbi_sock *);
477void cxgbi_sock_skb_entail(struct cxgbi_sock *, struct sk_buff *);
478void cxgbi_sock_fail_act_open(struct cxgbi_sock *, int);
479void cxgbi_sock_act_open_req_arp_failure(void *, struct sk_buff *);
480void cxgbi_sock_closed(struct cxgbi_sock *);
481void cxgbi_sock_established(struct cxgbi_sock *, unsigned int, unsigned int);
482void cxgbi_sock_rcv_abort_rpl(struct cxgbi_sock *);
483void cxgbi_sock_rcv_peer_close(struct cxgbi_sock *);
484void cxgbi_sock_rcv_close_conn_rpl(struct cxgbi_sock *, u32);
485void cxgbi_sock_rcv_wr_ack(struct cxgbi_sock *, unsigned int, unsigned int,
486 int);
487unsigned int cxgbi_sock_select_mss(struct cxgbi_sock *, unsigned int);
488void cxgbi_sock_free_cpl_skbs(struct cxgbi_sock *);
489
490struct cxgbi_hba {
491 struct net_device *ndev;
492 struct net_device *vdev;
493 struct Scsi_Host *shost;
494 struct cxgbi_device *cdev;
495 __be32 ipv4addr;
496 unsigned char port_id;
497};
498
499struct cxgbi_ports_map {
500 unsigned int max_connect;
501 unsigned int used;
502 unsigned short sport_base;
503 spinlock_t lock;
504 unsigned int next;
505 struct cxgbi_sock **port_csk;
506};
507
508#define CXGBI_FLAG_DEV_T3 0x1
509#define CXGBI_FLAG_DEV_T4 0x2
510#define CXGBI_FLAG_ADAPTER_RESET 0x4
511#define CXGBI_FLAG_IPV4_SET 0x10
512struct cxgbi_device {
513 struct list_head list_head;
514 unsigned int flags;
515 struct net_device **ports;
516 void *lldev;
517 struct cxgbi_hba **hbas;
518 const unsigned short *mtus;
519 unsigned char nmtus;
520 unsigned char nports;
521 struct pci_dev *pdev;
522 struct dentry *debugfs_root;
523 struct iscsi_transport *itp;
524
525 unsigned int pfvf;
526 unsigned int snd_win;
527 unsigned int rcv_win;
528 unsigned int rx_credit_thres;
529 unsigned int skb_tx_rsvd;
530 unsigned int skb_rx_extra;
531 unsigned int tx_max_size;
532 unsigned int rx_max_size;
533 struct cxgbi_ports_map pmap;
534 struct cxgbi_tag_format tag_format;
535 struct cxgbi_ddp_info *ddp;
536
537 void (*dev_ddp_cleanup)(struct cxgbi_device *);
538 int (*csk_ddp_set)(struct cxgbi_sock *, struct cxgbi_pagepod_hdr *,
539 unsigned int, unsigned int,
540 struct cxgbi_gather_list *);
541 void (*csk_ddp_clear)(struct cxgbi_hba *,
542 unsigned int, unsigned int, unsigned int);
543 int (*csk_ddp_setup_digest)(struct cxgbi_sock *,
544 unsigned int, int, int, int);
545 int (*csk_ddp_setup_pgidx)(struct cxgbi_sock *,
546 unsigned int, int, bool);
547
548 void (*csk_release_offload_resources)(struct cxgbi_sock *);
549 int (*csk_rx_pdu_ready)(struct cxgbi_sock *, struct sk_buff *);
550 u32 (*csk_send_rx_credits)(struct cxgbi_sock *, u32);
551 int (*csk_push_tx_frames)(struct cxgbi_sock *, int);
552 void (*csk_send_abort_req)(struct cxgbi_sock *);
553 void (*csk_send_close_req)(struct cxgbi_sock *);
554 int (*csk_alloc_cpls)(struct cxgbi_sock *);
555 int (*csk_init_act_open)(struct cxgbi_sock *);
556
557 void *dd_data;
558};
559#define cxgbi_cdev_priv(cdev) ((cdev)->dd_data)
560
561struct cxgbi_conn {
562 struct cxgbi_endpoint *cep;
563 struct iscsi_conn *iconn;
564 struct cxgbi_hba *chba;
565 u32 task_idx_bits;
566};
567
568struct cxgbi_endpoint {
569 struct cxgbi_conn *cconn;
570 struct cxgbi_hba *chba;
571 struct cxgbi_sock *csk;
572};
573
574#define MAX_PDU_FRAGS ((ULP2_MAX_PDU_PAYLOAD + 512 - 1) / 512)
575struct cxgbi_task_data {
576 unsigned short nr_frags;
577 struct page_frag frags[MAX_PDU_FRAGS];
578 struct sk_buff *skb;
579 unsigned int offset;
580 unsigned int count;
581 unsigned int sgoffset;
582};
583#define iscsi_task_cxgbi_data(task) \
584 ((task)->dd_data + sizeof(struct iscsi_tcp_task))
585
586static inline int cxgbi_is_ddp_tag(struct cxgbi_tag_format *tformat, u32 tag)
587{
588 return !(tag & (1 << (tformat->rsvd_bits + tformat->rsvd_shift - 1)));
589}
590
591static inline int cxgbi_sw_tag_usable(struct cxgbi_tag_format *tformat,
592 u32 sw_tag)
593{
594 sw_tag >>= (32 - tformat->rsvd_bits);
595 return !sw_tag;
596}
597
598static inline u32 cxgbi_set_non_ddp_tag(struct cxgbi_tag_format *tformat,
599 u32 sw_tag)
600{
601 unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1;
602 u32 mask = (1 << shift) - 1;
603
604 if (sw_tag && (sw_tag & ~mask)) {
605 u32 v1 = sw_tag & ((1 << shift) - 1);
606 u32 v2 = (sw_tag >> (shift - 1)) << shift;
607
608 return v2 | v1 | 1 << shift;
609 }
610
611 return sw_tag | 1 << shift;
612}
613
614static inline u32 cxgbi_ddp_tag_base(struct cxgbi_tag_format *tformat,
615 u32 sw_tag)
616{
617 u32 mask = (1 << tformat->rsvd_shift) - 1;
618
619 if (sw_tag && (sw_tag & ~mask)) {
620 u32 v1 = sw_tag & mask;
621 u32 v2 = sw_tag >> tformat->rsvd_shift;
622
623 v2 <<= tformat->rsvd_bits + tformat->rsvd_shift;
624
625 return v2 | v1;
626 }
627
628 return sw_tag;
629}
630
631static inline u32 cxgbi_tag_rsvd_bits(struct cxgbi_tag_format *tformat,
632 u32 tag)
633{
634 if (cxgbi_is_ddp_tag(tformat, tag))
635 return (tag >> tformat->rsvd_shift) & tformat->rsvd_mask;
636
637 return 0;
638}
639
640static inline u32 cxgbi_tag_nonrsvd_bits(struct cxgbi_tag_format *tformat,
641 u32 tag)
642{
643 unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1;
644 u32 v1, v2;
645
646 if (cxgbi_is_ddp_tag(tformat, tag)) {
647 v1 = tag & ((1 << tformat->rsvd_shift) - 1);
648 v2 = (tag >> (shift + 1)) << tformat->rsvd_shift;
649 } else {
650 u32 mask = (1 << shift) - 1;
651 tag &= ~(1 << shift);
652 v1 = tag & mask;
653 v2 = (tag >> 1) & ~mask;
654 }
655 return v1 | v2;
656}
657
658static inline void *cxgbi_alloc_big_mem(unsigned int size,
659 gfp_t gfp)
660{
661 void *p = kmalloc(size, gfp);
662 if (!p)
663 p = vmalloc(size);
664 if (p)
665 memset(p, 0, size);
666 return p;
667}
668
669static inline void cxgbi_free_big_mem(void *addr)
670{
671 if (is_vmalloc_addr(addr))
672 vfree(addr);
673 else
674 kfree(addr);
675}
676
677static inline void cxgbi_set_iscsi_ipv4(struct cxgbi_hba *chba, __be32 ipaddr)
678{
679 if (chba->cdev->flags & CXGBI_FLAG_IPV4_SET)
680 chba->ipv4addr = ipaddr;
681 else
682 pr_info("set iscsi ipv4 NOT supported, using %s ipv4.\n",
683 chba->ndev->name);
684}
685
686static inline __be32 cxgbi_get_iscsi_ipv4(struct cxgbi_hba *chba)
687{
688 return chba->ipv4addr;
689}
690
691struct cxgbi_device *cxgbi_device_register(unsigned int, unsigned int);
692void cxgbi_device_unregister(struct cxgbi_device *);
693void cxgbi_device_unregister_all(unsigned int flag);
694struct cxgbi_device *cxgbi_device_find_by_lldev(void *);
695int cxgbi_hbas_add(struct cxgbi_device *, unsigned int, unsigned int,
696 struct scsi_host_template *,
697 struct scsi_transport_template *);
698void cxgbi_hbas_remove(struct cxgbi_device *);
699
700int cxgbi_device_portmap_create(struct cxgbi_device *cdev, unsigned int base,
701 unsigned int max_conn);
702void cxgbi_device_portmap_cleanup(struct cxgbi_device *cdev);
703
704void cxgbi_conn_tx_open(struct cxgbi_sock *);
705void cxgbi_conn_pdu_ready(struct cxgbi_sock *);
706int cxgbi_conn_alloc_pdu(struct iscsi_task *, u8);
707int cxgbi_conn_init_pdu(struct iscsi_task *, unsigned int , unsigned int);
708int cxgbi_conn_xmit_pdu(struct iscsi_task *);
709
710void cxgbi_cleanup_task(struct iscsi_task *task);
711
712umode_t cxgbi_attr_is_visible(int param_type, int param);
713void cxgbi_get_conn_stats(struct iscsi_cls_conn *, struct iscsi_stats *);
714int cxgbi_set_conn_param(struct iscsi_cls_conn *,
715 enum iscsi_param, char *, int);
716int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param, char *);
717struct iscsi_cls_conn *cxgbi_create_conn(struct iscsi_cls_session *, u32);
718int cxgbi_bind_conn(struct iscsi_cls_session *,
719 struct iscsi_cls_conn *, u64, int);
720void cxgbi_destroy_session(struct iscsi_cls_session *);
721struct iscsi_cls_session *cxgbi_create_session(struct iscsi_endpoint *,
722 u16, u16, u32);
723int cxgbi_set_host_param(struct Scsi_Host *,
724 enum iscsi_host_param, char *, int);
725int cxgbi_get_host_param(struct Scsi_Host *, enum iscsi_host_param, char *);
726struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *,
727 struct sockaddr *, int);
728int cxgbi_ep_poll(struct iscsi_endpoint *, int);
729void cxgbi_ep_disconnect(struct iscsi_endpoint *);
730
731int cxgbi_iscsi_init(struct iscsi_transport *,
732 struct scsi_transport_template **);
733void cxgbi_iscsi_cleanup(struct iscsi_transport *,
734 struct scsi_transport_template **);
735void cxgbi_parse_pdu_itt(struct iscsi_conn *, itt_t, int *, int *);
736int cxgbi_ddp_init(struct cxgbi_device *, unsigned int, unsigned int,
737 unsigned int, unsigned int);
738int cxgbi_ddp_cleanup(struct cxgbi_device *);
739void cxgbi_ddp_page_size_factor(int *);
740void cxgbi_ddp_ppod_clear(struct cxgbi_pagepod *);
741void cxgbi_ddp_ppod_set(struct cxgbi_pagepod *, struct cxgbi_pagepod_hdr *,
742 struct cxgbi_gather_list *, unsigned int);
743#endif
744
