1 /* cnic.c: Broadcom CNIC core network driver.
3 * Copyright (c) 2006-2009 Broadcom Corporation
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
9 * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
10 * Modified and maintained by: Michael Chan <mchan@broadcom.com>
13 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/errno.h>
17 #include <linux/list.h>
18 #include <linux/slab.h>
19 #include <linux/pci.h>
20 #include <linux/init.h>
21 #include <linux/netdevice.h>
22 #include <linux/uio_driver.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/delay.h>
26 #include <linux/ethtool.h>
27 #include <linux/if_vlan.h>
28 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
33 #include <net/route.h>
35 #include <net/ip6_route.h>
36 #include <net/ip6_checksum.h>
37 #include <scsi/iscsi_if.h>
41 #include "bnx2x_reg.h"
42 #include "bnx2x_fw_defs.h"
43 #include "bnx2x_hsi.h"
44 #include "../scsi/bnx2i/57xx_iscsi_constants.h"
45 #include "../scsi/bnx2i/57xx_iscsi_hsi.h"
47 #include "cnic_defs.h"
49 #define DRV_MODULE_NAME "cnic"
50 #define PFX DRV_MODULE_NAME ": "
52 static char version
[] __devinitdata
=
53 "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME
" v" CNIC_MODULE_VERSION
" (" CNIC_MODULE_RELDATE
")\n";
55 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
56 "Chen (zongxi@broadcom.com");
57 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
58 MODULE_LICENSE("GPL");
59 MODULE_VERSION(CNIC_MODULE_VERSION
);
61 static LIST_HEAD(cnic_dev_list
);
62 static DEFINE_RWLOCK(cnic_dev_lock
);
63 static DEFINE_MUTEX(cnic_lock
);
65 static struct cnic_ulp_ops
*cnic_ulp_tbl
[MAX_CNIC_ULP_TYPE
];
67 static int cnic_service_bnx2(void *, void *);
68 static int cnic_service_bnx2x(void *, void *);
69 static int cnic_ctl(void *, struct cnic_ctl_info
*);
71 static struct cnic_ops cnic_bnx2_ops
= {
72 .cnic_owner
= THIS_MODULE
,
73 .cnic_handler
= cnic_service_bnx2
,
77 static struct cnic_ops cnic_bnx2x_ops
= {
78 .cnic_owner
= THIS_MODULE
,
79 .cnic_handler
= cnic_service_bnx2x
,
83 static void cnic_shutdown_rings(struct cnic_dev
*);
84 static void cnic_init_rings(struct cnic_dev
*);
85 static int cnic_cm_set_pg(struct cnic_sock
*);
87 static int cnic_uio_open(struct uio_info
*uinfo
, struct inode
*inode
)
89 struct cnic_dev
*dev
= uinfo
->priv
;
90 struct cnic_local
*cp
= dev
->cnic_priv
;
92 if (!capable(CAP_NET_ADMIN
))
95 if (cp
->uio_dev
!= -1)
99 if (!test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)) {
104 cp
->uio_dev
= iminor(inode
);
106 cnic_init_rings(dev
);
112 static int cnic_uio_close(struct uio_info
*uinfo
, struct inode
*inode
)
114 struct cnic_dev
*dev
= uinfo
->priv
;
115 struct cnic_local
*cp
= dev
->cnic_priv
;
117 cnic_shutdown_rings(dev
);
123 static inline void cnic_hold(struct cnic_dev
*dev
)
125 atomic_inc(&dev
->ref_count
);
128 static inline void cnic_put(struct cnic_dev
*dev
)
130 atomic_dec(&dev
->ref_count
);
133 static inline void csk_hold(struct cnic_sock
*csk
)
135 atomic_inc(&csk
->ref_count
);
138 static inline void csk_put(struct cnic_sock
*csk
)
140 atomic_dec(&csk
->ref_count
);
143 static struct cnic_dev
*cnic_from_netdev(struct net_device
*netdev
)
145 struct cnic_dev
*cdev
;
147 read_lock(&cnic_dev_lock
);
148 list_for_each_entry(cdev
, &cnic_dev_list
, list
) {
149 if (netdev
== cdev
->netdev
) {
151 read_unlock(&cnic_dev_lock
);
155 read_unlock(&cnic_dev_lock
);
159 static inline void ulp_get(struct cnic_ulp_ops
*ulp_ops
)
161 atomic_inc(&ulp_ops
->ref_count
);
164 static inline void ulp_put(struct cnic_ulp_ops
*ulp_ops
)
166 atomic_dec(&ulp_ops
->ref_count
);
169 static void cnic_ctx_wr(struct cnic_dev
*dev
, u32 cid_addr
, u32 off
, u32 val
)
171 struct cnic_local
*cp
= dev
->cnic_priv
;
172 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
173 struct drv_ctl_info info
;
174 struct drv_ctl_io
*io
= &info
.data
.io
;
176 info
.cmd
= DRV_CTL_CTX_WR_CMD
;
177 io
->cid_addr
= cid_addr
;
180 ethdev
->drv_ctl(dev
->netdev
, &info
);
183 static void cnic_ctx_tbl_wr(struct cnic_dev
*dev
, u32 off
, dma_addr_t addr
)
185 struct cnic_local
*cp
= dev
->cnic_priv
;
186 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
187 struct drv_ctl_info info
;
188 struct drv_ctl_io
*io
= &info
.data
.io
;
190 info
.cmd
= DRV_CTL_CTXTBL_WR_CMD
;
193 ethdev
->drv_ctl(dev
->netdev
, &info
);
196 static void cnic_ring_ctl(struct cnic_dev
*dev
, u32 cid
, u32 cl_id
, int start
)
198 struct cnic_local
*cp
= dev
->cnic_priv
;
199 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
200 struct drv_ctl_info info
;
201 struct drv_ctl_l2_ring
*ring
= &info
.data
.ring
;
204 info
.cmd
= DRV_CTL_START_L2_CMD
;
206 info
.cmd
= DRV_CTL_STOP_L2_CMD
;
209 ring
->client_id
= cl_id
;
210 ethdev
->drv_ctl(dev
->netdev
, &info
);
213 static void cnic_reg_wr_ind(struct cnic_dev
*dev
, u32 off
, u32 val
)
215 struct cnic_local
*cp
= dev
->cnic_priv
;
216 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
217 struct drv_ctl_info info
;
218 struct drv_ctl_io
*io
= &info
.data
.io
;
220 info
.cmd
= DRV_CTL_IO_WR_CMD
;
223 ethdev
->drv_ctl(dev
->netdev
, &info
);
226 static u32
cnic_reg_rd_ind(struct cnic_dev
*dev
, u32 off
)
228 struct cnic_local
*cp
= dev
->cnic_priv
;
229 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
230 struct drv_ctl_info info
;
231 struct drv_ctl_io
*io
= &info
.data
.io
;
233 info
.cmd
= DRV_CTL_IO_RD_CMD
;
235 ethdev
->drv_ctl(dev
->netdev
, &info
);
239 static int cnic_in_use(struct cnic_sock
*csk
)
241 return test_bit(SK_F_INUSE
, &csk
->flags
);
244 static void cnic_kwq_completion(struct cnic_dev
*dev
, u32 count
)
246 struct cnic_local
*cp
= dev
->cnic_priv
;
247 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
248 struct drv_ctl_info info
;
250 info
.cmd
= DRV_CTL_COMPLETION_CMD
;
251 info
.data
.comp
.comp_count
= count
;
252 ethdev
->drv_ctl(dev
->netdev
, &info
);
255 static int cnic_get_l5_cid(struct cnic_local
*cp
, u32 cid
, u32
*l5_cid
)
259 for (i
= 0; i
< MAX_ISCSI_TBL_SZ
; i
++) {
260 if (cp
->ctx_tbl
[i
].cid
== cid
) {
268 static int cnic_send_nlmsg(struct cnic_local
*cp
, u32 type
,
269 struct cnic_sock
*csk
)
271 struct iscsi_path path_req
;
274 u32 msg_type
= ISCSI_KEVENT_IF_DOWN
;
275 struct cnic_ulp_ops
*ulp_ops
;
277 if (cp
->uio_dev
== -1)
281 len
= sizeof(path_req
);
282 buf
= (char *) &path_req
;
283 memset(&path_req
, 0, len
);
285 msg_type
= ISCSI_KEVENT_PATH_REQ
;
286 path_req
.handle
= (u64
) csk
->l5_cid
;
287 if (test_bit(SK_F_IPV6
, &csk
->flags
)) {
288 memcpy(&path_req
.dst
.v6_addr
, &csk
->dst_ip
[0],
289 sizeof(struct in6_addr
));
290 path_req
.ip_addr_len
= 16;
292 memcpy(&path_req
.dst
.v4_addr
, &csk
->dst_ip
[0],
293 sizeof(struct in_addr
));
294 path_req
.ip_addr_len
= 4;
296 path_req
.vlan_id
= csk
->vlan_id
;
297 path_req
.pmtu
= csk
->mtu
;
301 ulp_ops
= rcu_dereference(cnic_ulp_tbl
[CNIC_ULP_ISCSI
]);
303 ulp_ops
->iscsi_nl_send_msg(cp
->dev
, msg_type
, buf
, len
);
308 static int cnic_iscsi_nl_msg_recv(struct cnic_dev
*dev
, u32 msg_type
,
314 case ISCSI_UEVENT_PATH_UPDATE
: {
315 struct cnic_local
*cp
;
317 struct cnic_sock
*csk
;
318 struct iscsi_path
*path_resp
;
320 if (len
< sizeof(*path_resp
))
323 path_resp
= (struct iscsi_path
*) buf
;
325 l5_cid
= (u32
) path_resp
->handle
;
326 if (l5_cid
>= MAX_CM_SK_TBL_SZ
)
329 csk
= &cp
->csk_tbl
[l5_cid
];
331 if (cnic_in_use(csk
)) {
332 memcpy(csk
->ha
, path_resp
->mac_addr
, 6);
333 if (test_bit(SK_F_IPV6
, &csk
->flags
))
334 memcpy(&csk
->src_ip
[0], &path_resp
->src
.v6_addr
,
335 sizeof(struct in6_addr
));
337 memcpy(&csk
->src_ip
[0], &path_resp
->src
.v4_addr
,
338 sizeof(struct in_addr
));
339 if (is_valid_ether_addr(csk
->ha
))
350 static int cnic_offld_prep(struct cnic_sock
*csk
)
352 if (test_and_set_bit(SK_F_OFFLD_SCHED
, &csk
->flags
))
355 if (!test_bit(SK_F_CONNECT_START
, &csk
->flags
)) {
356 clear_bit(SK_F_OFFLD_SCHED
, &csk
->flags
);
363 static int cnic_close_prep(struct cnic_sock
*csk
)
365 clear_bit(SK_F_CONNECT_START
, &csk
->flags
);
366 smp_mb__after_clear_bit();
368 if (test_and_clear_bit(SK_F_OFFLD_COMPLETE
, &csk
->flags
)) {
369 while (test_and_set_bit(SK_F_OFFLD_SCHED
, &csk
->flags
))
377 static int cnic_abort_prep(struct cnic_sock
*csk
)
379 clear_bit(SK_F_CONNECT_START
, &csk
->flags
);
380 smp_mb__after_clear_bit();
382 while (test_and_set_bit(SK_F_OFFLD_SCHED
, &csk
->flags
))
385 if (test_and_clear_bit(SK_F_OFFLD_COMPLETE
, &csk
->flags
)) {
386 csk
->state
= L4_KCQE_OPCODE_VALUE_RESET_COMP
;
393 static void cnic_uio_stop(void)
395 struct cnic_dev
*dev
;
397 read_lock(&cnic_dev_lock
);
398 list_for_each_entry(dev
, &cnic_dev_list
, list
) {
399 struct cnic_local
*cp
= dev
->cnic_priv
;
402 cnic_send_nlmsg(cp
, ISCSI_KEVENT_IF_DOWN
, NULL
);
404 read_unlock(&cnic_dev_lock
);
407 int cnic_register_driver(int ulp_type
, struct cnic_ulp_ops
*ulp_ops
)
409 struct cnic_dev
*dev
;
411 if (ulp_type
< 0 || ulp_type
>= MAX_CNIC_ULP_TYPE
) {
412 printk(KERN_ERR PFX
"cnic_register_driver: Bad type %d\n",
416 mutex_lock(&cnic_lock
);
417 if (cnic_ulp_tbl
[ulp_type
]) {
418 printk(KERN_ERR PFX
"cnic_register_driver: Type %d has already "
419 "been registered\n", ulp_type
);
420 mutex_unlock(&cnic_lock
);
424 read_lock(&cnic_dev_lock
);
425 list_for_each_entry(dev
, &cnic_dev_list
, list
) {
426 struct cnic_local
*cp
= dev
->cnic_priv
;
428 clear_bit(ULP_F_INIT
, &cp
->ulp_flags
[ulp_type
]);
430 read_unlock(&cnic_dev_lock
);
432 atomic_set(&ulp_ops
->ref_count
, 0);
433 rcu_assign_pointer(cnic_ulp_tbl
[ulp_type
], ulp_ops
);
434 mutex_unlock(&cnic_lock
);
436 /* Prevent race conditions with netdev_event */
438 read_lock(&cnic_dev_lock
);
439 list_for_each_entry(dev
, &cnic_dev_list
, list
) {
440 struct cnic_local
*cp
= dev
->cnic_priv
;
442 if (!test_and_set_bit(ULP_F_INIT
, &cp
->ulp_flags
[ulp_type
]))
443 ulp_ops
->cnic_init(dev
);
445 read_unlock(&cnic_dev_lock
);
451 int cnic_unregister_driver(int ulp_type
)
453 struct cnic_dev
*dev
;
454 struct cnic_ulp_ops
*ulp_ops
;
457 if (ulp_type
< 0 || ulp_type
>= MAX_CNIC_ULP_TYPE
) {
458 printk(KERN_ERR PFX
"cnic_unregister_driver: Bad type %d\n",
462 mutex_lock(&cnic_lock
);
463 ulp_ops
= cnic_ulp_tbl
[ulp_type
];
465 printk(KERN_ERR PFX
"cnic_unregister_driver: Type %d has not "
466 "been registered\n", ulp_type
);
469 read_lock(&cnic_dev_lock
);
470 list_for_each_entry(dev
, &cnic_dev_list
, list
) {
471 struct cnic_local
*cp
= dev
->cnic_priv
;
473 if (rcu_dereference(cp
->ulp_ops
[ulp_type
])) {
474 printk(KERN_ERR PFX
"cnic_unregister_driver: Type %d "
475 "still has devices registered\n", ulp_type
);
476 read_unlock(&cnic_dev_lock
);
480 read_unlock(&cnic_dev_lock
);
482 if (ulp_type
== CNIC_ULP_ISCSI
)
485 rcu_assign_pointer(cnic_ulp_tbl
[ulp_type
], NULL
);
487 mutex_unlock(&cnic_lock
);
489 while ((atomic_read(&ulp_ops
->ref_count
) != 0) && (i
< 20)) {
494 if (atomic_read(&ulp_ops
->ref_count
) != 0)
495 printk(KERN_WARNING PFX
"%s: Failed waiting for ref count to go"
496 " to zero.\n", dev
->netdev
->name
);
500 mutex_unlock(&cnic_lock
);
504 static int cnic_start_hw(struct cnic_dev
*);
505 static void cnic_stop_hw(struct cnic_dev
*);
507 static int cnic_register_device(struct cnic_dev
*dev
, int ulp_type
,
510 struct cnic_local
*cp
= dev
->cnic_priv
;
511 struct cnic_ulp_ops
*ulp_ops
;
513 if (ulp_type
< 0 || ulp_type
>= MAX_CNIC_ULP_TYPE
) {
514 printk(KERN_ERR PFX
"cnic_register_device: Bad type %d\n",
518 mutex_lock(&cnic_lock
);
519 if (cnic_ulp_tbl
[ulp_type
] == NULL
) {
520 printk(KERN_ERR PFX
"cnic_register_device: Driver with type %d "
521 "has not been registered\n", ulp_type
);
522 mutex_unlock(&cnic_lock
);
525 if (rcu_dereference(cp
->ulp_ops
[ulp_type
])) {
526 printk(KERN_ERR PFX
"cnic_register_device: Type %d has already "
527 "been registered to this device\n", ulp_type
);
528 mutex_unlock(&cnic_lock
);
532 clear_bit(ULP_F_START
, &cp
->ulp_flags
[ulp_type
]);
533 cp
->ulp_handle
[ulp_type
] = ulp_ctx
;
534 ulp_ops
= cnic_ulp_tbl
[ulp_type
];
535 rcu_assign_pointer(cp
->ulp_ops
[ulp_type
], ulp_ops
);
538 if (test_bit(CNIC_F_CNIC_UP
, &dev
->flags
))
539 if (!test_and_set_bit(ULP_F_START
, &cp
->ulp_flags
[ulp_type
]))
540 ulp_ops
->cnic_start(cp
->ulp_handle
[ulp_type
]);
542 mutex_unlock(&cnic_lock
);
547 EXPORT_SYMBOL(cnic_register_driver
);
549 static int cnic_unregister_device(struct cnic_dev
*dev
, int ulp_type
)
551 struct cnic_local
*cp
= dev
->cnic_priv
;
554 if (ulp_type
< 0 || ulp_type
>= MAX_CNIC_ULP_TYPE
) {
555 printk(KERN_ERR PFX
"cnic_unregister_device: Bad type %d\n",
559 mutex_lock(&cnic_lock
);
560 if (rcu_dereference(cp
->ulp_ops
[ulp_type
])) {
561 rcu_assign_pointer(cp
->ulp_ops
[ulp_type
], NULL
);
564 printk(KERN_ERR PFX
"cnic_unregister_device: device not "
565 "registered to this ulp type %d\n", ulp_type
);
566 mutex_unlock(&cnic_lock
);
569 mutex_unlock(&cnic_lock
);
573 while (test_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[ulp_type
]) &&
578 if (test_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[ulp_type
]))
579 printk(KERN_WARNING PFX
"%s: Failed waiting for ULP up call"
580 " to complete.\n", dev
->netdev
->name
);
584 EXPORT_SYMBOL(cnic_unregister_driver
);
586 static int cnic_init_id_tbl(struct cnic_id_tbl
*id_tbl
, u32 size
, u32 start_id
)
588 id_tbl
->start
= start_id
;
591 spin_lock_init(&id_tbl
->lock
);
592 id_tbl
->table
= kzalloc(DIV_ROUND_UP(size
, 32) * 4, GFP_KERNEL
);
599 static void cnic_free_id_tbl(struct cnic_id_tbl
*id_tbl
)
601 kfree(id_tbl
->table
);
602 id_tbl
->table
= NULL
;
605 static int cnic_alloc_id(struct cnic_id_tbl
*id_tbl
, u32 id
)
610 if (id
>= id_tbl
->max
)
613 spin_lock(&id_tbl
->lock
);
614 if (!test_bit(id
, id_tbl
->table
)) {
615 set_bit(id
, id_tbl
->table
);
618 spin_unlock(&id_tbl
->lock
);
622 /* Returns -1 if not successful */
623 static u32
cnic_alloc_new_id(struct cnic_id_tbl
*id_tbl
)
627 spin_lock(&id_tbl
->lock
);
628 id
= find_next_zero_bit(id_tbl
->table
, id_tbl
->max
, id_tbl
->next
);
629 if (id
>= id_tbl
->max
) {
631 if (id_tbl
->next
!= 0) {
632 id
= find_first_zero_bit(id_tbl
->table
, id_tbl
->next
);
633 if (id
>= id_tbl
->next
)
638 if (id
< id_tbl
->max
) {
639 set_bit(id
, id_tbl
->table
);
640 id_tbl
->next
= (id
+ 1) & (id_tbl
->max
- 1);
644 spin_unlock(&id_tbl
->lock
);
649 static void cnic_free_id(struct cnic_id_tbl
*id_tbl
, u32 id
)
655 if (id
>= id_tbl
->max
)
658 clear_bit(id
, id_tbl
->table
);
661 static void cnic_free_dma(struct cnic_dev
*dev
, struct cnic_dma
*dma
)
668 for (i
= 0; i
< dma
->num_pages
; i
++) {
669 if (dma
->pg_arr
[i
]) {
670 pci_free_consistent(dev
->pcidev
, BCM_PAGE_SIZE
,
671 dma
->pg_arr
[i
], dma
->pg_map_arr
[i
]);
672 dma
->pg_arr
[i
] = NULL
;
676 pci_free_consistent(dev
->pcidev
, dma
->pgtbl_size
,
677 dma
->pgtbl
, dma
->pgtbl_map
);
685 static void cnic_setup_page_tbl(struct cnic_dev
*dev
, struct cnic_dma
*dma
)
688 u32
*page_table
= dma
->pgtbl
;
690 for (i
= 0; i
< dma
->num_pages
; i
++) {
691 /* Each entry needs to be in big endian format. */
692 *page_table
= (u32
) ((u64
) dma
->pg_map_arr
[i
] >> 32);
694 *page_table
= (u32
) dma
->pg_map_arr
[i
];
699 static void cnic_setup_page_tbl_le(struct cnic_dev
*dev
, struct cnic_dma
*dma
)
702 u32
*page_table
= dma
->pgtbl
;
704 for (i
= 0; i
< dma
->num_pages
; i
++) {
705 /* Each entry needs to be in little endian format. */
706 *page_table
= dma
->pg_map_arr
[i
] & 0xffffffff;
708 *page_table
= (u32
) ((u64
) dma
->pg_map_arr
[i
] >> 32);
713 static int cnic_alloc_dma(struct cnic_dev
*dev
, struct cnic_dma
*dma
,
714 int pages
, int use_pg_tbl
)
717 struct cnic_local
*cp
= dev
->cnic_priv
;
719 size
= pages
* (sizeof(void *) + sizeof(dma_addr_t
));
720 dma
->pg_arr
= kzalloc(size
, GFP_ATOMIC
);
721 if (dma
->pg_arr
== NULL
)
724 dma
->pg_map_arr
= (dma_addr_t
*) (dma
->pg_arr
+ pages
);
725 dma
->num_pages
= pages
;
727 for (i
= 0; i
< pages
; i
++) {
728 dma
->pg_arr
[i
] = pci_alloc_consistent(dev
->pcidev
,
730 &dma
->pg_map_arr
[i
]);
731 if (dma
->pg_arr
[i
] == NULL
)
737 dma
->pgtbl_size
= ((pages
* 8) + BCM_PAGE_SIZE
- 1) &
738 ~(BCM_PAGE_SIZE
- 1);
739 dma
->pgtbl
= pci_alloc_consistent(dev
->pcidev
, dma
->pgtbl_size
,
741 if (dma
->pgtbl
== NULL
)
744 cp
->setup_pgtbl(dev
, dma
);
749 cnic_free_dma(dev
, dma
);
753 static void cnic_free_context(struct cnic_dev
*dev
)
755 struct cnic_local
*cp
= dev
->cnic_priv
;
758 for (i
= 0; i
< cp
->ctx_blks
; i
++) {
759 if (cp
->ctx_arr
[i
].ctx
) {
760 pci_free_consistent(dev
->pcidev
, cp
->ctx_blk_size
,
762 cp
->ctx_arr
[i
].mapping
);
763 cp
->ctx_arr
[i
].ctx
= NULL
;
768 static void cnic_free_resc(struct cnic_dev
*dev
)
770 struct cnic_local
*cp
= dev
->cnic_priv
;
773 if (cp
->cnic_uinfo
) {
774 while (cp
->uio_dev
!= -1 && i
< 15) {
778 uio_unregister_device(cp
->cnic_uinfo
);
779 kfree(cp
->cnic_uinfo
);
780 cp
->cnic_uinfo
= NULL
;
784 pci_free_consistent(dev
->pcidev
, cp
->l2_buf_size
,
785 cp
->l2_buf
, cp
->l2_buf_map
);
790 pci_free_consistent(dev
->pcidev
, cp
->l2_ring_size
,
791 cp
->l2_ring
, cp
->l2_ring_map
);
795 cnic_free_context(dev
);
800 cnic_free_dma(dev
, &cp
->gbl_buf_info
);
801 cnic_free_dma(dev
, &cp
->conn_buf_info
);
802 cnic_free_dma(dev
, &cp
->kwq_info
);
803 cnic_free_dma(dev
, &cp
->kwq_16_data_info
);
804 cnic_free_dma(dev
, &cp
->kcq_info
);
805 kfree(cp
->iscsi_tbl
);
806 cp
->iscsi_tbl
= NULL
;
810 cnic_free_id_tbl(&cp
->cid_tbl
);
813 static int cnic_alloc_context(struct cnic_dev
*dev
)
815 struct cnic_local
*cp
= dev
->cnic_priv
;
817 if (CHIP_NUM(cp
) == CHIP_NUM_5709
) {
820 cp
->ctx_blk_size
= BCM_PAGE_SIZE
;
821 cp
->cids_per_blk
= BCM_PAGE_SIZE
/ 128;
822 arr_size
= BNX2_MAX_CID
/ cp
->cids_per_blk
*
823 sizeof(struct cnic_ctx
);
824 cp
->ctx_arr
= kzalloc(arr_size
, GFP_KERNEL
);
825 if (cp
->ctx_arr
== NULL
)
829 for (i
= 0; i
< 2; i
++) {
830 u32 j
, reg
, off
, lo
, hi
;
833 off
= BNX2_PG_CTX_MAP
;
835 off
= BNX2_ISCSI_CTX_MAP
;
837 reg
= cnic_reg_rd_ind(dev
, off
);
840 for (j
= lo
; j
< hi
; j
+= cp
->cids_per_blk
, k
++)
841 cp
->ctx_arr
[k
].cid
= j
;
845 if (cp
->ctx_blks
>= (BNX2_MAX_CID
/ cp
->cids_per_blk
)) {
850 for (i
= 0; i
< cp
->ctx_blks
; i
++) {
852 pci_alloc_consistent(dev
->pcidev
, BCM_PAGE_SIZE
,
853 &cp
->ctx_arr
[i
].mapping
);
854 if (cp
->ctx_arr
[i
].ctx
== NULL
)
861 static int cnic_alloc_l2_rings(struct cnic_dev
*dev
, int pages
)
863 struct cnic_local
*cp
= dev
->cnic_priv
;
865 cp
->l2_ring_size
= pages
* BCM_PAGE_SIZE
;
866 cp
->l2_ring
= pci_alloc_consistent(dev
->pcidev
, cp
->l2_ring_size
,
871 cp
->l2_buf_size
= (cp
->l2_rx_ring_size
+ 1) * cp
->l2_single_buf_size
;
872 cp
->l2_buf_size
= PAGE_ALIGN(cp
->l2_buf_size
);
873 cp
->l2_buf
= pci_alloc_consistent(dev
->pcidev
, cp
->l2_buf_size
,
881 static int cnic_alloc_uio(struct cnic_dev
*dev
) {
882 struct cnic_local
*cp
= dev
->cnic_priv
;
883 struct uio_info
*uinfo
;
886 uinfo
= kzalloc(sizeof(*uinfo
), GFP_ATOMIC
);
890 uinfo
->mem
[0].addr
= dev
->netdev
->base_addr
;
891 uinfo
->mem
[0].internal_addr
= dev
->regview
;
892 uinfo
->mem
[0].size
= dev
->netdev
->mem_end
- dev
->netdev
->mem_start
;
893 uinfo
->mem
[0].memtype
= UIO_MEM_PHYS
;
895 if (test_bit(CNIC_F_BNX2_CLASS
, &dev
->flags
)) {
896 uinfo
->mem
[1].addr
= (unsigned long) cp
->status_blk
& PAGE_MASK
;
897 if (cp
->ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
)
898 uinfo
->mem
[1].size
= BNX2_SBLK_MSIX_ALIGN_SIZE
* 9;
900 uinfo
->mem
[1].size
= BNX2_SBLK_MSIX_ALIGN_SIZE
;
902 uinfo
->name
= "bnx2_cnic";
903 } else if (test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
904 uinfo
->mem
[1].addr
= (unsigned long) cp
->bnx2x_def_status_blk
&
906 uinfo
->mem
[1].size
= sizeof(struct host_def_status_block
);
908 uinfo
->name
= "bnx2x_cnic";
911 uinfo
->mem
[1].memtype
= UIO_MEM_LOGICAL
;
913 uinfo
->mem
[2].addr
= (unsigned long) cp
->l2_ring
;
914 uinfo
->mem
[2].size
= cp
->l2_ring_size
;
915 uinfo
->mem
[2].memtype
= UIO_MEM_LOGICAL
;
917 uinfo
->mem
[3].addr
= (unsigned long) cp
->l2_buf
;
918 uinfo
->mem
[3].size
= cp
->l2_buf_size
;
919 uinfo
->mem
[3].memtype
= UIO_MEM_LOGICAL
;
921 uinfo
->version
= CNIC_MODULE_VERSION
;
922 uinfo
->irq
= UIO_IRQ_CUSTOM
;
924 uinfo
->open
= cnic_uio_open
;
925 uinfo
->release
= cnic_uio_close
;
929 ret
= uio_register_device(&dev
->pcidev
->dev
, uinfo
);
935 cp
->cnic_uinfo
= uinfo
;
939 static int cnic_alloc_bnx2_resc(struct cnic_dev
*dev
)
941 struct cnic_local
*cp
= dev
->cnic_priv
;
944 ret
= cnic_alloc_dma(dev
, &cp
->kwq_info
, KWQ_PAGE_CNT
, 1);
947 cp
->kwq
= (struct kwqe
**) cp
->kwq_info
.pg_arr
;
949 ret
= cnic_alloc_dma(dev
, &cp
->kcq_info
, KCQ_PAGE_CNT
, 1);
952 cp
->kcq
= (struct kcqe
**) cp
->kcq_info
.pg_arr
;
954 ret
= cnic_alloc_context(dev
);
958 ret
= cnic_alloc_l2_rings(dev
, 2);
962 ret
= cnic_alloc_uio(dev
);
973 static int cnic_alloc_bnx2x_context(struct cnic_dev
*dev
)
975 struct cnic_local
*cp
= dev
->cnic_priv
;
976 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
977 int ctx_blk_size
= cp
->ethdev
->ctx_blk_size
;
978 int total_mem
, blks
, i
, cid_space
;
980 if (BNX2X_ISCSI_START_CID
< ethdev
->starting_cid
)
983 cid_space
= MAX_ISCSI_TBL_SZ
+
984 (BNX2X_ISCSI_START_CID
- ethdev
->starting_cid
);
986 total_mem
= BNX2X_CONTEXT_MEM_SIZE
* cid_space
;
987 blks
= total_mem
/ ctx_blk_size
;
988 if (total_mem
% ctx_blk_size
)
991 if (blks
> cp
->ethdev
->ctx_tbl_len
)
994 cp
->ctx_arr
= kzalloc(blks
* sizeof(struct cnic_ctx
), GFP_KERNEL
);
995 if (cp
->ctx_arr
== NULL
)
999 cp
->ctx_blk_size
= ctx_blk_size
;
1000 if (BNX2X_CHIP_IS_E1H(cp
->chip_id
))
1003 cp
->ctx_align
= ctx_blk_size
;
1005 cp
->cids_per_blk
= ctx_blk_size
/ BNX2X_CONTEXT_MEM_SIZE
;
1007 for (i
= 0; i
< blks
; i
++) {
1008 cp
->ctx_arr
[i
].ctx
=
1009 pci_alloc_consistent(dev
->pcidev
, cp
->ctx_blk_size
,
1010 &cp
->ctx_arr
[i
].mapping
);
1011 if (cp
->ctx_arr
[i
].ctx
== NULL
)
1014 if (cp
->ctx_align
&& cp
->ctx_blk_size
== ctx_blk_size
) {
1015 if (cp
->ctx_arr
[i
].mapping
& (cp
->ctx_align
- 1)) {
1016 cnic_free_context(dev
);
1017 cp
->ctx_blk_size
+= cp
->ctx_align
;
1026 static int cnic_alloc_bnx2x_resc(struct cnic_dev
*dev
)
1028 struct cnic_local
*cp
= dev
->cnic_priv
;
1029 int i
, j
, n
, ret
, pages
;
1030 struct cnic_dma
*kwq_16_dma
= &cp
->kwq_16_data_info
;
1032 cp
->iscsi_tbl
= kzalloc(sizeof(struct cnic_iscsi
) * MAX_ISCSI_TBL_SZ
,
1037 cp
->ctx_tbl
= kzalloc(sizeof(struct cnic_context
) *
1038 MAX_CNIC_L5_CONTEXT
, GFP_KERNEL
);
1042 for (i
= 0; i
< MAX_ISCSI_TBL_SZ
; i
++) {
1043 cp
->ctx_tbl
[i
].proto
.iscsi
= &cp
->iscsi_tbl
[i
];
1044 cp
->ctx_tbl
[i
].ulp_proto_id
= CNIC_ULP_ISCSI
;
1047 pages
= PAGE_ALIGN(MAX_CNIC_L5_CONTEXT
* CNIC_KWQ16_DATA_SIZE
) /
1050 ret
= cnic_alloc_dma(dev
, kwq_16_dma
, pages
, 0);
1054 n
= PAGE_SIZE
/ CNIC_KWQ16_DATA_SIZE
;
1055 for (i
= 0, j
= 0; i
< MAX_ISCSI_TBL_SZ
; i
++) {
1056 long off
= CNIC_KWQ16_DATA_SIZE
* (i
% n
);
1058 cp
->ctx_tbl
[i
].kwqe_data
= kwq_16_dma
->pg_arr
[j
] + off
;
1059 cp
->ctx_tbl
[i
].kwqe_data_mapping
= kwq_16_dma
->pg_map_arr
[j
] +
1062 if ((i
% n
) == (n
- 1))
1066 ret
= cnic_alloc_dma(dev
, &cp
->kcq_info
, KCQ_PAGE_CNT
, 0);
1069 cp
->kcq
= (struct kcqe
**) cp
->kcq_info
.pg_arr
;
1071 for (i
= 0; i
< KCQ_PAGE_CNT
; i
++) {
1072 struct bnx2x_bd_chain_next
*next
=
1073 (struct bnx2x_bd_chain_next
*)
1074 &cp
->kcq
[i
][MAX_KCQE_CNT
];
1077 if (j
>= KCQ_PAGE_CNT
)
1079 next
->addr_hi
= (u64
) cp
->kcq_info
.pg_map_arr
[j
] >> 32;
1080 next
->addr_lo
= cp
->kcq_info
.pg_map_arr
[j
] & 0xffffffff;
1083 pages
= PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS
*
1084 BNX2X_ISCSI_CONN_BUF_SIZE
) / PAGE_SIZE
;
1085 ret
= cnic_alloc_dma(dev
, &cp
->conn_buf_info
, pages
, 1);
1089 pages
= PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE
) / PAGE_SIZE
;
1090 ret
= cnic_alloc_dma(dev
, &cp
->gbl_buf_info
, pages
, 0);
1094 ret
= cnic_alloc_bnx2x_context(dev
);
1098 cp
->bnx2x_status_blk
= cp
->status_blk
;
1099 cp
->bnx2x_def_status_blk
= cp
->ethdev
->irq_arr
[1].status_blk
;
1101 cp
->l2_rx_ring_size
= 15;
1103 ret
= cnic_alloc_l2_rings(dev
, 4);
1107 ret
= cnic_alloc_uio(dev
);
1114 cnic_free_resc(dev
);
1118 static inline u32
cnic_kwq_avail(struct cnic_local
*cp
)
1120 return cp
->max_kwq_idx
-
1121 ((cp
->kwq_prod_idx
- cp
->kwq_con_idx
) & cp
->max_kwq_idx
);
1124 static int cnic_submit_bnx2_kwqes(struct cnic_dev
*dev
, struct kwqe
*wqes
[],
1127 struct cnic_local
*cp
= dev
->cnic_priv
;
1128 struct kwqe
*prod_qe
;
1129 u16 prod
, sw_prod
, i
;
1131 if (!test_bit(CNIC_F_CNIC_UP
, &dev
->flags
))
1132 return -EAGAIN
; /* bnx2 is down */
1134 spin_lock_bh(&cp
->cnic_ulp_lock
);
1135 if (num_wqes
> cnic_kwq_avail(cp
) &&
1136 !(cp
->cnic_local_flags
& CNIC_LCL_FL_KWQ_INIT
)) {
1137 spin_unlock_bh(&cp
->cnic_ulp_lock
);
1141 cp
->cnic_local_flags
&= ~CNIC_LCL_FL_KWQ_INIT
;
1143 prod
= cp
->kwq_prod_idx
;
1144 sw_prod
= prod
& MAX_KWQ_IDX
;
1145 for (i
= 0; i
< num_wqes
; i
++) {
1146 prod_qe
= &cp
->kwq
[KWQ_PG(sw_prod
)][KWQ_IDX(sw_prod
)];
1147 memcpy(prod_qe
, wqes
[i
], sizeof(struct kwqe
));
1149 sw_prod
= prod
& MAX_KWQ_IDX
;
1151 cp
->kwq_prod_idx
= prod
;
1153 CNIC_WR16(dev
, cp
->kwq_io_addr
, cp
->kwq_prod_idx
);
1155 spin_unlock_bh(&cp
->cnic_ulp_lock
);
1159 static void *cnic_get_kwqe_16_data(struct cnic_local
*cp
, u32 l5_cid
,
1160 union l5cm_specific_data
*l5_data
)
1162 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
1165 map
= ctx
->kwqe_data_mapping
;
1166 l5_data
->phy_address
.lo
= (u64
) map
& 0xffffffff;
1167 l5_data
->phy_address
.hi
= (u64
) map
>> 32;
1168 return ctx
->kwqe_data
;
1171 static int cnic_submit_kwqe_16(struct cnic_dev
*dev
, u32 cmd
, u32 cid
,
1172 u32 type
, union l5cm_specific_data
*l5_data
)
1174 struct cnic_local
*cp
= dev
->cnic_priv
;
1175 struct l5cm_spe kwqe
;
1176 struct kwqe_16
*kwq
[1];
1179 kwqe
.hdr
.conn_and_cmd_data
=
1180 cpu_to_le32(((cmd
<< SPE_HDR_CMD_ID_SHIFT
) |
1181 BNX2X_HW_CID(cid
, cp
->func
)));
1182 kwqe
.hdr
.type
= cpu_to_le16(type
);
1183 kwqe
.hdr
.reserved
= 0;
1184 kwqe
.data
.phy_address
.lo
= cpu_to_le32(l5_data
->phy_address
.lo
);
1185 kwqe
.data
.phy_address
.hi
= cpu_to_le32(l5_data
->phy_address
.hi
);
1187 kwq
[0] = (struct kwqe_16
*) &kwqe
;
1189 spin_lock_bh(&cp
->cnic_ulp_lock
);
1190 ret
= cp
->ethdev
->drv_submit_kwqes_16(dev
->netdev
, kwq
, 1);
1191 spin_unlock_bh(&cp
->cnic_ulp_lock
);
1199 static void cnic_reply_bnx2x_kcqes(struct cnic_dev
*dev
, int ulp_type
,
1200 struct kcqe
*cqes
[], u32 num_cqes
)
1202 struct cnic_local
*cp
= dev
->cnic_priv
;
1203 struct cnic_ulp_ops
*ulp_ops
;
1206 ulp_ops
= rcu_dereference(cp
->ulp_ops
[ulp_type
]);
1207 if (likely(ulp_ops
)) {
1208 ulp_ops
->indicate_kcqes(cp
->ulp_handle
[ulp_type
],
1214 static int cnic_bnx2x_iscsi_init1(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1216 struct cnic_local
*cp
= dev
->cnic_priv
;
1217 struct iscsi_kwqe_init1
*req1
= (struct iscsi_kwqe_init1
*) kwqe
;
1218 int func
= cp
->func
, pages
;
1221 cp
->num_iscsi_tasks
= req1
->num_tasks_per_conn
;
1222 cp
->num_ccells
= req1
->num_ccells_per_conn
;
1223 cp
->task_array_size
= BNX2X_ISCSI_TASK_CONTEXT_SIZE
*
1224 cp
->num_iscsi_tasks
;
1225 cp
->r2tq_size
= cp
->num_iscsi_tasks
* BNX2X_ISCSI_MAX_PENDING_R2TS
*
1226 BNX2X_ISCSI_R2TQE_SIZE
;
1227 cp
->hq_size
= cp
->num_ccells
* BNX2X_ISCSI_HQ_BD_SIZE
;
1228 pages
= PAGE_ALIGN(cp
->hq_size
) / PAGE_SIZE
;
1229 hq_bds
= pages
* (PAGE_SIZE
/ BNX2X_ISCSI_HQ_BD_SIZE
);
1230 cp
->num_cqs
= req1
->num_cqs
;
1232 if (!dev
->max_iscsi_conn
)
1235 /* init Tstorm RAM */
1236 CNIC_WR16(dev
, BAR_TSTRORM_INTMEM
+ TSTORM_ISCSI_RQ_SIZE_OFFSET(func
),
1238 CNIC_WR16(dev
, BAR_TSTRORM_INTMEM
+ TSTORM_ISCSI_PAGE_SIZE_OFFSET(func
),
1240 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1241 TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func
), PAGE_SHIFT
);
1242 CNIC_WR16(dev
, BAR_TSTRORM_INTMEM
+
1243 TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func
),
1244 req1
->num_tasks_per_conn
);
1246 /* init Ustorm RAM */
1247 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+
1248 USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(func
),
1249 req1
->rq_buffer_size
);
1250 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+ USTORM_ISCSI_PAGE_SIZE_OFFSET(func
),
1252 CNIC_WR8(dev
, BAR_USTRORM_INTMEM
+
1253 USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func
), PAGE_SHIFT
);
1254 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+
1255 USTORM_ISCSI_NUM_OF_TASKS_OFFSET(func
),
1256 req1
->num_tasks_per_conn
);
1257 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+ USTORM_ISCSI_RQ_SIZE_OFFSET(func
),
1259 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+ USTORM_ISCSI_CQ_SIZE_OFFSET(func
),
1261 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+ USTORM_ISCSI_R2TQ_SIZE_OFFSET(func
),
1262 cp
->num_iscsi_tasks
* BNX2X_ISCSI_MAX_PENDING_R2TS
);
1264 /* init Xstorm RAM */
1265 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+ XSTORM_ISCSI_PAGE_SIZE_OFFSET(func
),
1267 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1268 XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func
), PAGE_SHIFT
);
1269 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+
1270 XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func
),
1271 req1
->num_tasks_per_conn
);
1272 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+ XSTORM_ISCSI_HQ_SIZE_OFFSET(func
),
1274 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+ XSTORM_ISCSI_SQ_SIZE_OFFSET(func
),
1275 req1
->num_tasks_per_conn
);
1276 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+ XSTORM_ISCSI_R2TQ_SIZE_OFFSET(func
),
1277 cp
->num_iscsi_tasks
* BNX2X_ISCSI_MAX_PENDING_R2TS
);
1279 /* init Cstorm RAM */
1280 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+ CSTORM_ISCSI_PAGE_SIZE_OFFSET(func
),
1282 CNIC_WR8(dev
, BAR_CSTRORM_INTMEM
+
1283 CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func
), PAGE_SHIFT
);
1284 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+
1285 CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func
),
1286 req1
->num_tasks_per_conn
);
1287 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+ CSTORM_ISCSI_CQ_SIZE_OFFSET(func
),
1289 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+ CSTORM_ISCSI_HQ_SIZE_OFFSET(func
),
1295 static int cnic_bnx2x_iscsi_init2(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1297 struct iscsi_kwqe_init2
*req2
= (struct iscsi_kwqe_init2
*) kwqe
;
1298 struct cnic_local
*cp
= dev
->cnic_priv
;
1299 int func
= cp
->func
;
1300 struct iscsi_kcqe kcqe
;
1301 struct kcqe
*cqes
[1];
1303 memset(&kcqe
, 0, sizeof(kcqe
));
1304 if (!dev
->max_iscsi_conn
) {
1305 kcqe
.completion_status
=
1306 ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED
;
1310 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
1311 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(func
), req2
->error_bit_map
[0]);
1312 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
1313 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(func
) + 4,
1314 req2
->error_bit_map
[1]);
1316 CNIC_WR16(dev
, BAR_USTRORM_INTMEM
+
1317 USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(func
), req2
->max_cq_sqn
);
1318 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
1319 USTORM_ISCSI_ERROR_BITMAP_OFFSET(func
), req2
->error_bit_map
[0]);
1320 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
1321 USTORM_ISCSI_ERROR_BITMAP_OFFSET(func
) + 4,
1322 req2
->error_bit_map
[1]);
1324 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+
1325 CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(func
), req2
->max_cq_sqn
);
1327 kcqe
.completion_status
= ISCSI_KCQE_COMPLETION_STATUS_SUCCESS
;
1330 kcqe
.op_code
= ISCSI_KCQE_OPCODE_INIT
;
1331 cqes
[0] = (struct kcqe
*) &kcqe
;
1332 cnic_reply_bnx2x_kcqes(dev
, CNIC_ULP_ISCSI
, cqes
, 1);
1337 static void cnic_free_bnx2x_conn_resc(struct cnic_dev
*dev
, u32 l5_cid
)
1339 struct cnic_local
*cp
= dev
->cnic_priv
;
1340 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
1342 if (ctx
->ulp_proto_id
== CNIC_ULP_ISCSI
) {
1343 struct cnic_iscsi
*iscsi
= ctx
->proto
.iscsi
;
1345 cnic_free_dma(dev
, &iscsi
->hq_info
);
1346 cnic_free_dma(dev
, &iscsi
->r2tq_info
);
1347 cnic_free_dma(dev
, &iscsi
->task_array_info
);
1349 cnic_free_id(&cp
->cid_tbl
, ctx
->cid
);
1353 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev
*dev
, u32 l5_cid
)
1357 struct cnic_local
*cp
= dev
->cnic_priv
;
1358 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
1359 struct cnic_iscsi
*iscsi
= ctx
->proto
.iscsi
;
1361 cid
= cnic_alloc_new_id(&cp
->cid_tbl
);
1368 pages
= PAGE_ALIGN(cp
->task_array_size
) / PAGE_SIZE
;
1370 ret
= cnic_alloc_dma(dev
, &iscsi
->task_array_info
, pages
, 1);
1374 pages
= PAGE_ALIGN(cp
->r2tq_size
) / PAGE_SIZE
;
1375 ret
= cnic_alloc_dma(dev
, &iscsi
->r2tq_info
, pages
, 1);
1379 pages
= PAGE_ALIGN(cp
->hq_size
) / PAGE_SIZE
;
1380 ret
= cnic_alloc_dma(dev
, &iscsi
->hq_info
, pages
, 1);
1387 cnic_free_bnx2x_conn_resc(dev
, l5_cid
);
1391 static void *cnic_get_bnx2x_ctx(struct cnic_dev
*dev
, u32 cid
, int init
,
1392 struct regpair
*ctx_addr
)
1394 struct cnic_local
*cp
= dev
->cnic_priv
;
1395 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
1396 int blk
= (cid
- ethdev
->starting_cid
) / cp
->cids_per_blk
;
1397 int off
= (cid
- ethdev
->starting_cid
) % cp
->cids_per_blk
;
1398 unsigned long align_off
= 0;
1402 if (cp
->ctx_align
) {
1403 unsigned long mask
= cp
->ctx_align
- 1;
1405 if (cp
->ctx_arr
[blk
].mapping
& mask
)
1406 align_off
= cp
->ctx_align
-
1407 (cp
->ctx_arr
[blk
].mapping
& mask
);
1409 ctx_map
= cp
->ctx_arr
[blk
].mapping
+ align_off
+
1410 (off
* BNX2X_CONTEXT_MEM_SIZE
);
1411 ctx
= cp
->ctx_arr
[blk
].ctx
+ align_off
+
1412 (off
* BNX2X_CONTEXT_MEM_SIZE
);
1414 memset(ctx
, 0, BNX2X_CONTEXT_MEM_SIZE
);
1416 ctx_addr
->lo
= ctx_map
& 0xffffffff;
1417 ctx_addr
->hi
= (u64
) ctx_map
>> 32;
1421 static int cnic_setup_bnx2x_ctx(struct cnic_dev
*dev
, struct kwqe
*wqes
[],
1424 struct cnic_local
*cp
= dev
->cnic_priv
;
1425 struct iscsi_kwqe_conn_offload1
*req1
=
1426 (struct iscsi_kwqe_conn_offload1
*) wqes
[0];
1427 struct iscsi_kwqe_conn_offload2
*req2
=
1428 (struct iscsi_kwqe_conn_offload2
*) wqes
[1];
1429 struct iscsi_kwqe_conn_offload3
*req3
;
1430 struct cnic_context
*ctx
= &cp
->ctx_tbl
[req1
->iscsi_conn_id
];
1431 struct cnic_iscsi
*iscsi
= ctx
->proto
.iscsi
;
1433 u32 hw_cid
= BNX2X_HW_CID(cid
, cp
->func
);
1434 struct iscsi_context
*ictx
;
1435 struct regpair context_addr
;
1436 int i
, j
, n
= 2, n_max
;
1439 if (!req2
->num_additional_wqes
)
1442 n_max
= req2
->num_additional_wqes
+ 2;
1444 ictx
= cnic_get_bnx2x_ctx(dev
, cid
, 1, &context_addr
);
1448 req3
= (struct iscsi_kwqe_conn_offload3
*) wqes
[n
++];
1450 ictx
->xstorm_ag_context
.hq_prod
= 1;
1452 ictx
->xstorm_st_context
.iscsi
.first_burst_length
=
1453 ISCSI_DEF_FIRST_BURST_LEN
;
1454 ictx
->xstorm_st_context
.iscsi
.max_send_pdu_length
=
1455 ISCSI_DEF_MAX_RECV_SEG_LEN
;
1456 ictx
->xstorm_st_context
.iscsi
.sq_pbl_base
.lo
=
1457 req1
->sq_page_table_addr_lo
;
1458 ictx
->xstorm_st_context
.iscsi
.sq_pbl_base
.hi
=
1459 req1
->sq_page_table_addr_hi
;
1460 ictx
->xstorm_st_context
.iscsi
.sq_curr_pbe
.lo
= req2
->sq_first_pte
.hi
;
1461 ictx
->xstorm_st_context
.iscsi
.sq_curr_pbe
.hi
= req2
->sq_first_pte
.lo
;
1462 ictx
->xstorm_st_context
.iscsi
.hq_pbl_base
.lo
=
1463 iscsi
->hq_info
.pgtbl_map
& 0xffffffff;
1464 ictx
->xstorm_st_context
.iscsi
.hq_pbl_base
.hi
=
1465 (u64
) iscsi
->hq_info
.pgtbl_map
>> 32;
1466 ictx
->xstorm_st_context
.iscsi
.hq_curr_pbe_base
.lo
=
1467 iscsi
->hq_info
.pgtbl
[0];
1468 ictx
->xstorm_st_context
.iscsi
.hq_curr_pbe_base
.hi
=
1469 iscsi
->hq_info
.pgtbl
[1];
1470 ictx
->xstorm_st_context
.iscsi
.r2tq_pbl_base
.lo
=
1471 iscsi
->r2tq_info
.pgtbl_map
& 0xffffffff;
1472 ictx
->xstorm_st_context
.iscsi
.r2tq_pbl_base
.hi
=
1473 (u64
) iscsi
->r2tq_info
.pgtbl_map
>> 32;
1474 ictx
->xstorm_st_context
.iscsi
.r2tq_curr_pbe_base
.lo
=
1475 iscsi
->r2tq_info
.pgtbl
[0];
1476 ictx
->xstorm_st_context
.iscsi
.r2tq_curr_pbe_base
.hi
=
1477 iscsi
->r2tq_info
.pgtbl
[1];
1478 ictx
->xstorm_st_context
.iscsi
.task_pbl_base
.lo
=
1479 iscsi
->task_array_info
.pgtbl_map
& 0xffffffff;
1480 ictx
->xstorm_st_context
.iscsi
.task_pbl_base
.hi
=
1481 (u64
) iscsi
->task_array_info
.pgtbl_map
>> 32;
1482 ictx
->xstorm_st_context
.iscsi
.task_pbl_cache_idx
=
1483 BNX2X_ISCSI_PBL_NOT_CACHED
;
1484 ictx
->xstorm_st_context
.iscsi
.flags
.flags
|=
1485 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA
;
1486 ictx
->xstorm_st_context
.iscsi
.flags
.flags
|=
1487 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T
;
1489 ictx
->tstorm_st_context
.iscsi
.hdr_bytes_2_fetch
= ISCSI_HEADER_SIZE
;
1490 /* TSTORM requires the base address of RQ DB & not PTE */
1491 ictx
->tstorm_st_context
.iscsi
.rq_db_phy_addr
.lo
=
1492 req2
->rq_page_table_addr_lo
& PAGE_MASK
;
1493 ictx
->tstorm_st_context
.iscsi
.rq_db_phy_addr
.hi
=
1494 req2
->rq_page_table_addr_hi
;
1495 ictx
->tstorm_st_context
.iscsi
.iscsi_conn_id
= req1
->iscsi_conn_id
;
1496 ictx
->tstorm_st_context
.tcp
.cwnd
= 0x5A8;
1497 ictx
->tstorm_st_context
.tcp
.flags2
|=
1498 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN
;
1500 ictx
->timers_context
.flags
|= ISCSI_TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG
;
1502 ictx
->ustorm_st_context
.ring
.rq
.pbl_base
.lo
=
1503 req2
->rq_page_table_addr_lo
& 0xffffffff;
1504 ictx
->ustorm_st_context
.ring
.rq
.pbl_base
.hi
=
1505 (u64
) req2
->rq_page_table_addr_hi
>> 32;
1506 ictx
->ustorm_st_context
.ring
.rq
.curr_pbe
.lo
= req3
->qp_first_pte
[0].hi
;
1507 ictx
->ustorm_st_context
.ring
.rq
.curr_pbe
.hi
= req3
->qp_first_pte
[0].lo
;
1508 ictx
->ustorm_st_context
.ring
.r2tq
.pbl_base
.lo
=
1509 iscsi
->r2tq_info
.pgtbl_map
& 0xffffffff;
1510 ictx
->ustorm_st_context
.ring
.r2tq
.pbl_base
.hi
=
1511 (u64
) iscsi
->r2tq_info
.pgtbl_map
>> 32;
1512 ictx
->ustorm_st_context
.ring
.r2tq
.curr_pbe
.lo
=
1513 iscsi
->r2tq_info
.pgtbl
[0];
1514 ictx
->ustorm_st_context
.ring
.r2tq
.curr_pbe
.hi
=
1515 iscsi
->r2tq_info
.pgtbl
[1];
1516 ictx
->ustorm_st_context
.ring
.cq_pbl_base
.lo
=
1517 req1
->cq_page_table_addr_lo
;
1518 ictx
->ustorm_st_context
.ring
.cq_pbl_base
.hi
=
1519 req1
->cq_page_table_addr_hi
;
1520 ictx
->ustorm_st_context
.ring
.cq
[0].cq_sn
= ISCSI_INITIAL_SN
;
1521 ictx
->ustorm_st_context
.ring
.cq
[0].curr_pbe
.lo
= req2
->cq_first_pte
.hi
;
1522 ictx
->ustorm_st_context
.ring
.cq
[0].curr_pbe
.hi
= req2
->cq_first_pte
.lo
;
1523 ictx
->ustorm_st_context
.task_pbe_cache_index
=
1524 BNX2X_ISCSI_PBL_NOT_CACHED
;
1525 ictx
->ustorm_st_context
.task_pdu_cache_index
=
1526 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED
;
1528 for (i
= 1, j
= 1; i
< cp
->num_cqs
; i
++, j
++) {
1532 req3
= (struct iscsi_kwqe_conn_offload3
*) wqes
[n
++];
1535 ictx
->ustorm_st_context
.ring
.cq
[i
].cq_sn
= ISCSI_INITIAL_SN
;
1536 ictx
->ustorm_st_context
.ring
.cq
[i
].curr_pbe
.lo
=
1537 req3
->qp_first_pte
[j
].hi
;
1538 ictx
->ustorm_st_context
.ring
.cq
[i
].curr_pbe
.hi
=
1539 req3
->qp_first_pte
[j
].lo
;
1542 ictx
->ustorm_st_context
.task_pbl_base
.lo
=
1543 iscsi
->task_array_info
.pgtbl_map
& 0xffffffff;
1544 ictx
->ustorm_st_context
.task_pbl_base
.hi
=
1545 (u64
) iscsi
->task_array_info
.pgtbl_map
>> 32;
1546 ictx
->ustorm_st_context
.tce_phy_addr
.lo
=
1547 iscsi
->task_array_info
.pgtbl
[0];
1548 ictx
->ustorm_st_context
.tce_phy_addr
.hi
=
1549 iscsi
->task_array_info
.pgtbl
[1];
1550 ictx
->ustorm_st_context
.iscsi_conn_id
= req1
->iscsi_conn_id
;
1551 ictx
->ustorm_st_context
.num_cqs
= cp
->num_cqs
;
1552 ictx
->ustorm_st_context
.negotiated_rx
|= ISCSI_DEF_MAX_RECV_SEG_LEN
;
1553 ictx
->ustorm_st_context
.negotiated_rx_and_flags
|=
1554 ISCSI_DEF_MAX_BURST_LEN
;
1555 ictx
->ustorm_st_context
.negotiated_rx
|=
1556 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T
<<
1557 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT
;
1559 ictx
->cstorm_st_context
.hq_pbl_base
.lo
=
1560 iscsi
->hq_info
.pgtbl_map
& 0xffffffff;
1561 ictx
->cstorm_st_context
.hq_pbl_base
.hi
=
1562 (u64
) iscsi
->hq_info
.pgtbl_map
>> 32;
1563 ictx
->cstorm_st_context
.hq_curr_pbe
.lo
= iscsi
->hq_info
.pgtbl
[0];
1564 ictx
->cstorm_st_context
.hq_curr_pbe
.hi
= iscsi
->hq_info
.pgtbl
[1];
1565 ictx
->cstorm_st_context
.task_pbl_base
.lo
=
1566 iscsi
->task_array_info
.pgtbl_map
& 0xffffffff;
1567 ictx
->cstorm_st_context
.task_pbl_base
.hi
=
1568 (u64
) iscsi
->task_array_info
.pgtbl_map
>> 32;
1569 /* CSTORM and USTORM initialization is different, CSTORM requires
1570 * CQ DB base & not PTE addr */
1571 ictx
->cstorm_st_context
.cq_db_base
.lo
=
1572 req1
->cq_page_table_addr_lo
& PAGE_MASK
;
1573 ictx
->cstorm_st_context
.cq_db_base
.hi
= req1
->cq_page_table_addr_hi
;
1574 ictx
->cstorm_st_context
.iscsi_conn_id
= req1
->iscsi_conn_id
;
1575 ictx
->cstorm_st_context
.cq_proc_en_bit_map
= (1 << cp
->num_cqs
) - 1;
1576 for (i
= 0; i
< cp
->num_cqs
; i
++) {
1577 ictx
->cstorm_st_context
.cq_c_prod_sqn_arr
.sqn
[i
] =
1579 ictx
->cstorm_st_context
.cq_c_sqn_2_notify_arr
.sqn
[i
] =
1583 ictx
->xstorm_ag_context
.cdu_reserved
=
1584 CDU_RSRVD_VALUE_TYPE_A(hw_cid
, CDU_REGION_NUMBER_XCM_AG
,
1585 ISCSI_CONNECTION_TYPE
);
1586 ictx
->ustorm_ag_context
.cdu_usage
=
1587 CDU_RSRVD_VALUE_TYPE_A(hw_cid
, CDU_REGION_NUMBER_UCM_AG
,
1588 ISCSI_CONNECTION_TYPE
);
1593 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev
*dev
, struct kwqe
*wqes
[],
1596 struct iscsi_kwqe_conn_offload1
*req1
;
1597 struct iscsi_kwqe_conn_offload2
*req2
;
1598 struct cnic_local
*cp
= dev
->cnic_priv
;
1599 struct iscsi_kcqe kcqe
;
1600 struct kcqe
*cqes
[1];
1609 req1
= (struct iscsi_kwqe_conn_offload1
*) wqes
[0];
1610 req2
= (struct iscsi_kwqe_conn_offload2
*) wqes
[1];
1611 if ((num
- 2) < req2
->num_additional_wqes
) {
1615 *work
= 2 + req2
->num_additional_wqes
;;
1617 l5_cid
= req1
->iscsi_conn_id
;
1618 if (l5_cid
>= MAX_ISCSI_TBL_SZ
)
1621 memset(&kcqe
, 0, sizeof(kcqe
));
1622 kcqe
.op_code
= ISCSI_KCQE_OPCODE_OFFLOAD_CONN
;
1623 kcqe
.iscsi_conn_id
= l5_cid
;
1624 kcqe
.completion_status
= ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE
;
1626 if (atomic_inc_return(&cp
->iscsi_conn
) > dev
->max_iscsi_conn
) {
1627 atomic_dec(&cp
->iscsi_conn
);
1631 ret
= cnic_alloc_bnx2x_conn_resc(dev
, l5_cid
);
1633 atomic_dec(&cp
->iscsi_conn
);
1637 ret
= cnic_setup_bnx2x_ctx(dev
, wqes
, num
);
1639 cnic_free_bnx2x_conn_resc(dev
, l5_cid
);
1640 atomic_dec(&cp
->iscsi_conn
);
1644 kcqe
.completion_status
= ISCSI_KCQE_COMPLETION_STATUS_SUCCESS
;
1645 kcqe
.iscsi_conn_context_id
= BNX2X_HW_CID(cp
->ctx_tbl
[l5_cid
].cid
,
1649 cqes
[0] = (struct kcqe
*) &kcqe
;
1650 cnic_reply_bnx2x_kcqes(dev
, CNIC_ULP_ISCSI
, cqes
, 1);
1655 static int cnic_bnx2x_iscsi_update(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1657 struct cnic_local
*cp
= dev
->cnic_priv
;
1658 struct iscsi_kwqe_conn_update
*req
=
1659 (struct iscsi_kwqe_conn_update
*) kwqe
;
1661 union l5cm_specific_data l5_data
;
1662 u32 l5_cid
, cid
= BNX2X_SW_CID(req
->context_id
);
1665 if (cnic_get_l5_cid(cp
, cid
, &l5_cid
) != 0)
1668 data
= cnic_get_kwqe_16_data(cp
, l5_cid
, &l5_data
);
1672 memcpy(data
, kwqe
, sizeof(struct kwqe
));
1674 ret
= cnic_submit_kwqe_16(dev
, ISCSI_RAMROD_CMD_ID_UPDATE_CONN
,
1675 req
->context_id
, ISCSI_CONNECTION_TYPE
, &l5_data
);
1679 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1681 struct cnic_local
*cp
= dev
->cnic_priv
;
1682 struct iscsi_kwqe_conn_destroy
*req
=
1683 (struct iscsi_kwqe_conn_destroy
*) kwqe
;
1684 union l5cm_specific_data l5_data
;
1685 u32 l5_cid
= req
->reserved0
;
1686 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
1688 struct iscsi_kcqe kcqe
;
1689 struct kcqe
*cqes
[1];
1691 if (!(ctx
->ctx_flags
& CTX_FL_OFFLD_START
))
1692 goto skip_cfc_delete
;
1694 while (!time_after(jiffies
, ctx
->timestamp
+ (2 * HZ
)))
1697 init_waitqueue_head(&ctx
->waitq
);
1699 memset(&l5_data
, 0, sizeof(l5_data
));
1700 ret
= cnic_submit_kwqe_16(dev
, RAMROD_CMD_ID_ETH_CFC_DEL
,
1702 ETH_CONNECTION_TYPE
|
1703 (1 << SPE_HDR_COMMON_RAMROD_SHIFT
),
1706 wait_event(ctx
->waitq
, ctx
->wait_cond
);
1709 cnic_free_bnx2x_conn_resc(dev
, l5_cid
);
1711 atomic_dec(&cp
->iscsi_conn
);
1713 memset(&kcqe
, 0, sizeof(kcqe
));
1714 kcqe
.op_code
= ISCSI_KCQE_OPCODE_DESTROY_CONN
;
1715 kcqe
.iscsi_conn_id
= l5_cid
;
1716 kcqe
.completion_status
= ISCSI_KCQE_COMPLETION_STATUS_SUCCESS
;
1717 kcqe
.iscsi_conn_context_id
= req
->context_id
;
1719 cqes
[0] = (struct kcqe
*) &kcqe
;
1720 cnic_reply_bnx2x_kcqes(dev
, CNIC_ULP_ISCSI
, cqes
, 1);
1725 static void cnic_init_storm_conn_bufs(struct cnic_dev
*dev
,
1726 struct l4_kwq_connect_req1
*kwqe1
,
1727 struct l4_kwq_connect_req3
*kwqe3
,
1728 struct l5cm_active_conn_buffer
*conn_buf
)
1730 struct l5cm_conn_addr_params
*conn_addr
= &conn_buf
->conn_addr_buf
;
1731 struct l5cm_xstorm_conn_buffer
*xstorm_buf
=
1732 &conn_buf
->xstorm_conn_buffer
;
1733 struct l5cm_tstorm_conn_buffer
*tstorm_buf
=
1734 &conn_buf
->tstorm_conn_buffer
;
1735 struct regpair context_addr
;
1736 u32 cid
= BNX2X_SW_CID(kwqe1
->cid
);
1737 struct in6_addr src_ip
, dst_ip
;
1741 addrp
= (u32
*) &conn_addr
->local_ip_addr
;
1742 for (i
= 0; i
< 4; i
++, addrp
++)
1743 src_ip
.in6_u
.u6_addr32
[i
] = cpu_to_be32(*addrp
);
1745 addrp
= (u32
*) &conn_addr
->remote_ip_addr
;
1746 for (i
= 0; i
< 4; i
++, addrp
++)
1747 dst_ip
.in6_u
.u6_addr32
[i
] = cpu_to_be32(*addrp
);
1749 cnic_get_bnx2x_ctx(dev
, cid
, 0, &context_addr
);
1751 xstorm_buf
->context_addr
.hi
= context_addr
.hi
;
1752 xstorm_buf
->context_addr
.lo
= context_addr
.lo
;
1753 xstorm_buf
->mss
= 0xffff;
1754 xstorm_buf
->rcv_buf
= kwqe3
->rcv_buf
;
1755 if (kwqe1
->tcp_flags
& L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE
)
1756 xstorm_buf
->params
|= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE
;
1757 xstorm_buf
->pseudo_header_checksum
=
1758 swab16(~csum_ipv6_magic(&src_ip
, &dst_ip
, 0, IPPROTO_TCP
, 0));
1760 if (!(kwqe1
->tcp_flags
& L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK
))
1761 tstorm_buf
->params
|=
1762 L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE
;
1763 if (kwqe3
->ka_timeout
) {
1764 tstorm_buf
->ka_enable
= 1;
1765 tstorm_buf
->ka_timeout
= kwqe3
->ka_timeout
;
1766 tstorm_buf
->ka_interval
= kwqe3
->ka_interval
;
1767 tstorm_buf
->ka_max_probe_count
= kwqe3
->ka_max_probe_count
;
1769 tstorm_buf
->rcv_buf
= kwqe3
->rcv_buf
;
1770 tstorm_buf
->snd_buf
= kwqe3
->snd_buf
;
1771 tstorm_buf
->max_rt_time
= 0xffffffff;
1774 static void cnic_init_bnx2x_mac(struct cnic_dev
*dev
)
1776 struct cnic_local
*cp
= dev
->cnic_priv
;
1777 int func
= CNIC_FUNC(cp
);
1778 u8
*mac
= dev
->mac_addr
;
1780 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1781 XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(func
), mac
[0]);
1782 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1783 XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(func
), mac
[1]);
1784 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1785 XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(func
), mac
[2]);
1786 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1787 XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(func
), mac
[3]);
1788 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1789 XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(func
), mac
[4]);
1790 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1791 XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(func
), mac
[5]);
1793 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1794 TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(func
), mac
[5]);
1795 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1796 TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(func
) + 1,
1798 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1799 TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func
), mac
[3]);
1800 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1801 TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func
) + 1,
1803 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1804 TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func
) + 2,
1806 CNIC_WR8(dev
, BAR_TSTRORM_INTMEM
+
1807 TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func
) + 3,
1811 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev
*dev
, int tcp_ts
)
1813 struct cnic_local
*cp
= dev
->cnic_priv
;
1814 u8 xstorm_flags
= XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN
;
1815 u16 tstorm_flags
= 0;
1818 xstorm_flags
|= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED
;
1819 tstorm_flags
|= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED
;
1822 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
1823 XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp
->func
), xstorm_flags
);
1825 CNIC_WR16(dev
, BAR_TSTRORM_INTMEM
+
1826 TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp
->func
), tstorm_flags
);
1829 static int cnic_bnx2x_connect(struct cnic_dev
*dev
, struct kwqe
*wqes
[],
1832 struct cnic_local
*cp
= dev
->cnic_priv
;
1833 struct l4_kwq_connect_req1
*kwqe1
=
1834 (struct l4_kwq_connect_req1
*) wqes
[0];
1835 struct l4_kwq_connect_req3
*kwqe3
;
1836 struct l5cm_active_conn_buffer
*conn_buf
;
1837 struct l5cm_conn_addr_params
*conn_addr
;
1838 union l5cm_specific_data l5_data
;
1839 u32 l5_cid
= kwqe1
->pg_cid
;
1840 struct cnic_sock
*csk
= &cp
->csk_tbl
[l5_cid
];
1841 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
1849 if (kwqe1
->conn_flags
& L4_KWQ_CONNECT_REQ1_IP_V6
)
1859 if (sizeof(*conn_buf
) > CNIC_KWQ16_DATA_SIZE
) {
1860 printk(KERN_ERR PFX
"%s: conn_buf size too big\n",
1864 conn_buf
= cnic_get_kwqe_16_data(cp
, l5_cid
, &l5_data
);
1868 memset(conn_buf
, 0, sizeof(*conn_buf
));
1870 conn_addr
= &conn_buf
->conn_addr_buf
;
1871 conn_addr
->remote_addr_0
= csk
->ha
[0];
1872 conn_addr
->remote_addr_1
= csk
->ha
[1];
1873 conn_addr
->remote_addr_2
= csk
->ha
[2];
1874 conn_addr
->remote_addr_3
= csk
->ha
[3];
1875 conn_addr
->remote_addr_4
= csk
->ha
[4];
1876 conn_addr
->remote_addr_5
= csk
->ha
[5];
1878 if (kwqe1
->conn_flags
& L4_KWQ_CONNECT_REQ1_IP_V6
) {
1879 struct l4_kwq_connect_req2
*kwqe2
=
1880 (struct l4_kwq_connect_req2
*) wqes
[1];
1882 conn_addr
->local_ip_addr
.ip_addr_hi_hi
= kwqe2
->src_ip_v6_4
;
1883 conn_addr
->local_ip_addr
.ip_addr_hi_lo
= kwqe2
->src_ip_v6_3
;
1884 conn_addr
->local_ip_addr
.ip_addr_lo_hi
= kwqe2
->src_ip_v6_2
;
1886 conn_addr
->remote_ip_addr
.ip_addr_hi_hi
= kwqe2
->dst_ip_v6_4
;
1887 conn_addr
->remote_ip_addr
.ip_addr_hi_lo
= kwqe2
->dst_ip_v6_3
;
1888 conn_addr
->remote_ip_addr
.ip_addr_lo_hi
= kwqe2
->dst_ip_v6_2
;
1889 conn_addr
->params
|= L5CM_CONN_ADDR_PARAMS_IP_VERSION
;
1891 kwqe3
= (struct l4_kwq_connect_req3
*) wqes
[*work
- 1];
1893 conn_addr
->local_ip_addr
.ip_addr_lo_lo
= kwqe1
->src_ip
;
1894 conn_addr
->remote_ip_addr
.ip_addr_lo_lo
= kwqe1
->dst_ip
;
1895 conn_addr
->local_tcp_port
= kwqe1
->src_port
;
1896 conn_addr
->remote_tcp_port
= kwqe1
->dst_port
;
1898 conn_addr
->pmtu
= kwqe3
->pmtu
;
1899 cnic_init_storm_conn_bufs(dev
, kwqe1
, kwqe3
, conn_buf
);
1901 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+
1902 XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp
->func
), csk
->vlan_id
);
1904 cnic_bnx2x_set_tcp_timestamp(dev
,
1905 kwqe1
->tcp_flags
& L4_KWQ_CONNECT_REQ1_TIME_STAMP
);
1907 ret
= cnic_submit_kwqe_16(dev
, L5CM_RAMROD_CMD_ID_TCP_CONNECT
,
1908 kwqe1
->cid
, ISCSI_CONNECTION_TYPE
, &l5_data
);
1910 ctx
->ctx_flags
|= CTX_FL_OFFLD_START
;
1915 static int cnic_bnx2x_close(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1917 struct l4_kwq_close_req
*req
= (struct l4_kwq_close_req
*) kwqe
;
1918 union l5cm_specific_data l5_data
;
1921 memset(&l5_data
, 0, sizeof(l5_data
));
1922 ret
= cnic_submit_kwqe_16(dev
, L5CM_RAMROD_CMD_ID_CLOSE
,
1923 req
->cid
, ISCSI_CONNECTION_TYPE
, &l5_data
);
1927 static int cnic_bnx2x_reset(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1929 struct l4_kwq_reset_req
*req
= (struct l4_kwq_reset_req
*) kwqe
;
1930 union l5cm_specific_data l5_data
;
1933 memset(&l5_data
, 0, sizeof(l5_data
));
1934 ret
= cnic_submit_kwqe_16(dev
, L5CM_RAMROD_CMD_ID_ABORT
,
1935 req
->cid
, ISCSI_CONNECTION_TYPE
, &l5_data
);
1938 static int cnic_bnx2x_offload_pg(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1940 struct l4_kwq_offload_pg
*req
= (struct l4_kwq_offload_pg
*) kwqe
;
1942 struct kcqe
*cqes
[1];
1944 memset(&kcqe
, 0, sizeof(kcqe
));
1945 kcqe
.pg_host_opaque
= req
->host_opaque
;
1946 kcqe
.pg_cid
= req
->host_opaque
;
1947 kcqe
.op_code
= L4_KCQE_OPCODE_VALUE_OFFLOAD_PG
;
1948 cqes
[0] = (struct kcqe
*) &kcqe
;
1949 cnic_reply_bnx2x_kcqes(dev
, CNIC_ULP_L4
, cqes
, 1);
1953 static int cnic_bnx2x_update_pg(struct cnic_dev
*dev
, struct kwqe
*kwqe
)
1955 struct l4_kwq_update_pg
*req
= (struct l4_kwq_update_pg
*) kwqe
;
1957 struct kcqe
*cqes
[1];
1959 memset(&kcqe
, 0, sizeof(kcqe
));
1960 kcqe
.pg_host_opaque
= req
->pg_host_opaque
;
1961 kcqe
.pg_cid
= req
->pg_cid
;
1962 kcqe
.op_code
= L4_KCQE_OPCODE_VALUE_UPDATE_PG
;
1963 cqes
[0] = (struct kcqe
*) &kcqe
;
1964 cnic_reply_bnx2x_kcqes(dev
, CNIC_ULP_L4
, cqes
, 1);
1968 static int cnic_submit_bnx2x_kwqes(struct cnic_dev
*dev
, struct kwqe
*wqes
[],
1975 if (!test_bit(CNIC_F_CNIC_UP
, &dev
->flags
))
1976 return -EAGAIN
; /* bnx2 is down */
1978 for (i
= 0; i
< num_wqes
; ) {
1980 opcode
= KWQE_OPCODE(kwqe
->kwqe_op_flag
);
1984 case ISCSI_KWQE_OPCODE_INIT1
:
1985 ret
= cnic_bnx2x_iscsi_init1(dev
, kwqe
);
1987 case ISCSI_KWQE_OPCODE_INIT2
:
1988 ret
= cnic_bnx2x_iscsi_init2(dev
, kwqe
);
1990 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1
:
1991 ret
= cnic_bnx2x_iscsi_ofld1(dev
, &wqes
[i
],
1992 num_wqes
- i
, &work
);
1994 case ISCSI_KWQE_OPCODE_UPDATE_CONN
:
1995 ret
= cnic_bnx2x_iscsi_update(dev
, kwqe
);
1997 case ISCSI_KWQE_OPCODE_DESTROY_CONN
:
1998 ret
= cnic_bnx2x_iscsi_destroy(dev
, kwqe
);
2000 case L4_KWQE_OPCODE_VALUE_CONNECT1
:
2001 ret
= cnic_bnx2x_connect(dev
, &wqes
[i
], num_wqes
- i
,
2004 case L4_KWQE_OPCODE_VALUE_CLOSE
:
2005 ret
= cnic_bnx2x_close(dev
, kwqe
);
2007 case L4_KWQE_OPCODE_VALUE_RESET
:
2008 ret
= cnic_bnx2x_reset(dev
, kwqe
);
2010 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG
:
2011 ret
= cnic_bnx2x_offload_pg(dev
, kwqe
);
2013 case L4_KWQE_OPCODE_VALUE_UPDATE_PG
:
2014 ret
= cnic_bnx2x_update_pg(dev
, kwqe
);
2016 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG
:
2021 printk(KERN_ERR PFX
"%s: Unknown type of KWQE(0x%x)\n",
2022 dev
->netdev
->name
, opcode
);
2026 printk(KERN_ERR PFX
"%s: KWQE(0x%x) failed\n",
2027 dev
->netdev
->name
, opcode
);
2033 static void service_kcqes(struct cnic_dev
*dev
, int num_cqes
)
2035 struct cnic_local
*cp
= dev
->cnic_priv
;
2041 struct cnic_ulp_ops
*ulp_ops
;
2043 u32 kcqe_op_flag
= cp
->completed_kcq
[i
]->kcqe_op_flag
;
2044 u32 kcqe_layer
= kcqe_op_flag
& KCQE_FLAGS_LAYER_MASK
;
2046 if (unlikely(kcqe_op_flag
& KCQE_RAMROD_COMPLETION
))
2047 cnic_kwq_completion(dev
, 1);
2049 while (j
< num_cqes
) {
2050 u32 next_op
= cp
->completed_kcq
[i
+ j
]->kcqe_op_flag
;
2052 if ((next_op
& KCQE_FLAGS_LAYER_MASK
) != kcqe_layer
)
2055 if (unlikely(next_op
& KCQE_RAMROD_COMPLETION
))
2056 cnic_kwq_completion(dev
, 1);
2060 if (kcqe_layer
== KCQE_FLAGS_LAYER_MASK_L5_RDMA
)
2061 ulp_type
= CNIC_ULP_RDMA
;
2062 else if (kcqe_layer
== KCQE_FLAGS_LAYER_MASK_L5_ISCSI
)
2063 ulp_type
= CNIC_ULP_ISCSI
;
2064 else if (kcqe_layer
== KCQE_FLAGS_LAYER_MASK_L4
)
2065 ulp_type
= CNIC_ULP_L4
;
2066 else if (kcqe_layer
== KCQE_FLAGS_LAYER_MASK_L2
)
2069 printk(KERN_ERR PFX
"%s: Unknown type of KCQE(0x%x)\n",
2070 dev
->netdev
->name
, kcqe_op_flag
);
2075 ulp_ops
= rcu_dereference(cp
->ulp_ops
[ulp_type
]);
2076 if (likely(ulp_ops
)) {
2077 ulp_ops
->indicate_kcqes(cp
->ulp_handle
[ulp_type
],
2078 cp
->completed_kcq
+ i
, j
);
2089 static u16
cnic_bnx2_next_idx(u16 idx
)
2094 static u16
cnic_bnx2_hw_idx(u16 idx
)
2099 static u16
cnic_bnx2x_next_idx(u16 idx
)
2102 if ((idx
& MAX_KCQE_CNT
) == MAX_KCQE_CNT
)
2108 static u16
cnic_bnx2x_hw_idx(u16 idx
)
2110 if ((idx
& MAX_KCQE_CNT
) == MAX_KCQE_CNT
)
2115 static int cnic_get_kcqes(struct cnic_dev
*dev
, u16 hw_prod
, u16
*sw_prod
)
2117 struct cnic_local
*cp
= dev
->cnic_priv
;
2120 int kcqe_cnt
= 0, last_cnt
= 0;
2122 i
= ri
= last
= *sw_prod
;
2125 while ((i
!= hw_prod
) && (kcqe_cnt
< MAX_COMPLETED_KCQE
)) {
2126 kcqe
= &cp
->kcq
[KCQ_PG(ri
)][KCQ_IDX(ri
)];
2127 cp
->completed_kcq
[kcqe_cnt
++] = kcqe
;
2128 i
= cp
->next_idx(i
);
2129 ri
= i
& MAX_KCQ_IDX
;
2130 if (likely(!(kcqe
->kcqe_op_flag
& KCQE_FLAGS_NEXT
))) {
2131 last_cnt
= kcqe_cnt
;
2140 static void cnic_chk_pkt_rings(struct cnic_local
*cp
)
2142 u16 rx_cons
= *cp
->rx_cons_ptr
;
2143 u16 tx_cons
= *cp
->tx_cons_ptr
;
2145 if (cp
->tx_cons
!= tx_cons
|| cp
->rx_cons
!= rx_cons
) {
2146 cp
->tx_cons
= tx_cons
;
2147 cp
->rx_cons
= rx_cons
;
2149 uio_event_notify(cp
->cnic_uinfo
);
2153 static int cnic_service_bnx2(void *data
, void *status_blk
)
2155 struct cnic_dev
*dev
= data
;
2156 struct status_block
*sblk
= status_blk
;
2157 struct cnic_local
*cp
= dev
->cnic_priv
;
2158 u32 status_idx
= sblk
->status_idx
;
2159 u16 hw_prod
, sw_prod
;
2162 if (unlikely(!test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)))
2165 cp
->kwq_con_idx
= *cp
->kwq_con_idx_ptr
;
2167 hw_prod
= sblk
->status_completion_producer_index
;
2168 sw_prod
= cp
->kcq_prod_idx
;
2169 while (sw_prod
!= hw_prod
) {
2170 kcqe_cnt
= cnic_get_kcqes(dev
, hw_prod
, &sw_prod
);
2174 service_kcqes(dev
, kcqe_cnt
);
2176 /* Tell compiler that status_blk fields can change. */
2178 if (status_idx
!= sblk
->status_idx
) {
2179 status_idx
= sblk
->status_idx
;
2180 cp
->kwq_con_idx
= *cp
->kwq_con_idx_ptr
;
2181 hw_prod
= sblk
->status_completion_producer_index
;
2187 CNIC_WR16(dev
, cp
->kcq_io_addr
, sw_prod
);
2189 cp
->kcq_prod_idx
= sw_prod
;
2191 cnic_chk_pkt_rings(cp
);
2195 static void cnic_service_bnx2_msix(unsigned long data
)
2197 struct cnic_dev
*dev
= (struct cnic_dev
*) data
;
2198 struct cnic_local
*cp
= dev
->cnic_priv
;
2199 struct status_block_msix
*status_blk
= cp
->bnx2_status_blk
;
2200 u32 status_idx
= status_blk
->status_idx
;
2201 u16 hw_prod
, sw_prod
;
2204 cp
->kwq_con_idx
= status_blk
->status_cmd_consumer_index
;
2206 hw_prod
= status_blk
->status_completion_producer_index
;
2207 sw_prod
= cp
->kcq_prod_idx
;
2208 while (sw_prod
!= hw_prod
) {
2209 kcqe_cnt
= cnic_get_kcqes(dev
, hw_prod
, &sw_prod
);
2213 service_kcqes(dev
, kcqe_cnt
);
2215 /* Tell compiler that status_blk fields can change. */
2217 if (status_idx
!= status_blk
->status_idx
) {
2218 status_idx
= status_blk
->status_idx
;
2219 cp
->kwq_con_idx
= status_blk
->status_cmd_consumer_index
;
2220 hw_prod
= status_blk
->status_completion_producer_index
;
2226 CNIC_WR16(dev
, cp
->kcq_io_addr
, sw_prod
);
2227 cp
->kcq_prod_idx
= sw_prod
;
2229 cnic_chk_pkt_rings(cp
);
2231 cp
->last_status_idx
= status_idx
;
2232 CNIC_WR(dev
, BNX2_PCICFG_INT_ACK_CMD
, cp
->int_num
|
2233 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID
| cp
->last_status_idx
);
2236 static irqreturn_t
cnic_irq(int irq
, void *dev_instance
)
2238 struct cnic_dev
*dev
= dev_instance
;
2239 struct cnic_local
*cp
= dev
->cnic_priv
;
2240 u16 prod
= cp
->kcq_prod_idx
& MAX_KCQ_IDX
;
2245 prefetch(cp
->status_blk
);
2246 prefetch(&cp
->kcq
[KCQ_PG(prod
)][KCQ_IDX(prod
)]);
2248 if (likely(test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)))
2249 tasklet_schedule(&cp
->cnic_irq_task
);
2254 static inline void cnic_ack_bnx2x_int(struct cnic_dev
*dev
, u8 id
, u8 storm
,
2255 u16 index
, u8 op
, u8 update
)
2257 struct cnic_local
*cp
= dev
->cnic_priv
;
2258 u32 hc_addr
= (HC_REG_COMMAND_REG
+ CNIC_PORT(cp
) * 32 +
2259 COMMAND_REG_INT_ACK
);
2260 struct igu_ack_register igu_ack
;
2262 igu_ack
.status_block_index
= index
;
2263 igu_ack
.sb_id_and_flags
=
2264 ((id
<< IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT
) |
2265 (storm
<< IGU_ACK_REGISTER_STORM_ID_SHIFT
) |
2266 (update
<< IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT
) |
2267 (op
<< IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT
));
2269 CNIC_WR(dev
, hc_addr
, (*(u32
*)&igu_ack
));
2272 static void cnic_ack_bnx2x_msix(struct cnic_dev
*dev
)
2274 struct cnic_local
*cp
= dev
->cnic_priv
;
2276 cnic_ack_bnx2x_int(dev
, cp
->status_blk_num
, CSTORM_ID
, 0,
2277 IGU_INT_DISABLE
, 0);
2280 static void cnic_service_bnx2x_bh(unsigned long data
)
2282 struct cnic_dev
*dev
= (struct cnic_dev
*) data
;
2283 struct cnic_local
*cp
= dev
->cnic_priv
;
2284 u16 hw_prod
, sw_prod
;
2285 struct cstorm_status_block_c
*sblk
=
2286 &cp
->bnx2x_status_blk
->c_status_block
;
2287 u32 status_idx
= sblk
->status_block_index
;
2290 if (unlikely(!test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)))
2293 hw_prod
= sblk
->index_values
[HC_INDEX_C_ISCSI_EQ_CONS
];
2294 hw_prod
= cp
->hw_idx(hw_prod
);
2295 sw_prod
= cp
->kcq_prod_idx
;
2296 while (sw_prod
!= hw_prod
) {
2297 kcqe_cnt
= cnic_get_kcqes(dev
, hw_prod
, &sw_prod
);
2301 service_kcqes(dev
, kcqe_cnt
);
2303 /* Tell compiler that sblk fields can change. */
2305 if (status_idx
== sblk
->status_block_index
)
2308 status_idx
= sblk
->status_block_index
;
2309 hw_prod
= sblk
->index_values
[HC_INDEX_C_ISCSI_EQ_CONS
];
2310 hw_prod
= cp
->hw_idx(hw_prod
);
2314 CNIC_WR16(dev
, cp
->kcq_io_addr
, sw_prod
+ MAX_KCQ_IDX
);
2315 cnic_ack_bnx2x_int(dev
, cp
->status_blk_num
, CSTORM_ID
,
2316 status_idx
, IGU_INT_ENABLE
, 1);
2318 cp
->kcq_prod_idx
= sw_prod
;
2322 static int cnic_service_bnx2x(void *data
, void *status_blk
)
2324 struct cnic_dev
*dev
= data
;
2325 struct cnic_local
*cp
= dev
->cnic_priv
;
2326 u16 prod
= cp
->kcq_prod_idx
& MAX_KCQ_IDX
;
2328 prefetch(cp
->status_blk
);
2329 prefetch(&cp
->kcq
[KCQ_PG(prod
)][KCQ_IDX(prod
)]);
2331 if (likely(test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)))
2332 tasklet_schedule(&cp
->cnic_irq_task
);
2334 cnic_chk_pkt_rings(cp
);
2339 static void cnic_ulp_stop(struct cnic_dev
*dev
)
2341 struct cnic_local
*cp
= dev
->cnic_priv
;
2345 cnic_send_nlmsg(cp
, ISCSI_KEVENT_IF_DOWN
, NULL
);
2347 for (if_type
= 0; if_type
< MAX_CNIC_ULP_TYPE
; if_type
++) {
2348 struct cnic_ulp_ops
*ulp_ops
;
2350 mutex_lock(&cnic_lock
);
2351 ulp_ops
= cp
->ulp_ops
[if_type
];
2353 mutex_unlock(&cnic_lock
);
2356 set_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[if_type
]);
2357 mutex_unlock(&cnic_lock
);
2359 if (test_and_clear_bit(ULP_F_START
, &cp
->ulp_flags
[if_type
]))
2360 ulp_ops
->cnic_stop(cp
->ulp_handle
[if_type
]);
2362 clear_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[if_type
]);
2366 static void cnic_ulp_start(struct cnic_dev
*dev
)
2368 struct cnic_local
*cp
= dev
->cnic_priv
;
2371 for (if_type
= 0; if_type
< MAX_CNIC_ULP_TYPE
; if_type
++) {
2372 struct cnic_ulp_ops
*ulp_ops
;
2374 mutex_lock(&cnic_lock
);
2375 ulp_ops
= cp
->ulp_ops
[if_type
];
2376 if (!ulp_ops
|| !ulp_ops
->cnic_start
) {
2377 mutex_unlock(&cnic_lock
);
2380 set_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[if_type
]);
2381 mutex_unlock(&cnic_lock
);
2383 if (!test_and_set_bit(ULP_F_START
, &cp
->ulp_flags
[if_type
]))
2384 ulp_ops
->cnic_start(cp
->ulp_handle
[if_type
]);
2386 clear_bit(ULP_F_CALL_PENDING
, &cp
->ulp_flags
[if_type
]);
2390 static int cnic_ctl(void *data
, struct cnic_ctl_info
*info
)
2392 struct cnic_dev
*dev
= data
;
2394 switch (info
->cmd
) {
2395 case CNIC_CTL_STOP_CMD
:
2403 case CNIC_CTL_START_CMD
:
2406 if (!cnic_start_hw(dev
))
2407 cnic_ulp_start(dev
);
2411 case CNIC_CTL_COMPLETION_CMD
: {
2412 u32 cid
= BNX2X_SW_CID(info
->data
.comp
.cid
);
2414 struct cnic_local
*cp
= dev
->cnic_priv
;
2416 if (cnic_get_l5_cid(cp
, cid
, &l5_cid
) == 0) {
2417 struct cnic_context
*ctx
= &cp
->ctx_tbl
[l5_cid
];
2420 wake_up(&ctx
->waitq
);
2430 static void cnic_ulp_init(struct cnic_dev
*dev
)
2433 struct cnic_local
*cp
= dev
->cnic_priv
;
2435 for (i
= 0; i
< MAX_CNIC_ULP_TYPE_EXT
; i
++) {
2436 struct cnic_ulp_ops
*ulp_ops
;
2438 mutex_lock(&cnic_lock
);
2439 ulp_ops
= cnic_ulp_tbl
[i
];
2440 if (!ulp_ops
|| !ulp_ops
->cnic_init
) {
2441 mutex_unlock(&cnic_lock
);
2445 mutex_unlock(&cnic_lock
);
2447 if (!test_and_set_bit(ULP_F_INIT
, &cp
->ulp_flags
[i
]))
2448 ulp_ops
->cnic_init(dev
);
2454 static void cnic_ulp_exit(struct cnic_dev
*dev
)
2457 struct cnic_local
*cp
= dev
->cnic_priv
;
2459 for (i
= 0; i
< MAX_CNIC_ULP_TYPE_EXT
; i
++) {
2460 struct cnic_ulp_ops
*ulp_ops
;
2462 mutex_lock(&cnic_lock
);
2463 ulp_ops
= cnic_ulp_tbl
[i
];
2464 if (!ulp_ops
|| !ulp_ops
->cnic_exit
) {
2465 mutex_unlock(&cnic_lock
);
2469 mutex_unlock(&cnic_lock
);
2471 if (test_and_clear_bit(ULP_F_INIT
, &cp
->ulp_flags
[i
]))
2472 ulp_ops
->cnic_exit(dev
);
2478 static int cnic_cm_offload_pg(struct cnic_sock
*csk
)
2480 struct cnic_dev
*dev
= csk
->dev
;
2481 struct l4_kwq_offload_pg
*l4kwqe
;
2482 struct kwqe
*wqes
[1];
2484 l4kwqe
= (struct l4_kwq_offload_pg
*) &csk
->kwqe1
;
2485 memset(l4kwqe
, 0, sizeof(*l4kwqe
));
2486 wqes
[0] = (struct kwqe
*) l4kwqe
;
2488 l4kwqe
->op_code
= L4_KWQE_OPCODE_VALUE_OFFLOAD_PG
;
2490 L4_LAYER_CODE
<< L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT
;
2491 l4kwqe
->l2hdr_nbytes
= ETH_HLEN
;
2493 l4kwqe
->da0
= csk
->ha
[0];
2494 l4kwqe
->da1
= csk
->ha
[1];
2495 l4kwqe
->da2
= csk
->ha
[2];
2496 l4kwqe
->da3
= csk
->ha
[3];
2497 l4kwqe
->da4
= csk
->ha
[4];
2498 l4kwqe
->da5
= csk
->ha
[5];
2500 l4kwqe
->sa0
= dev
->mac_addr
[0];
2501 l4kwqe
->sa1
= dev
->mac_addr
[1];
2502 l4kwqe
->sa2
= dev
->mac_addr
[2];
2503 l4kwqe
->sa3
= dev
->mac_addr
[3];
2504 l4kwqe
->sa4
= dev
->mac_addr
[4];
2505 l4kwqe
->sa5
= dev
->mac_addr
[5];
2507 l4kwqe
->etype
= ETH_P_IP
;
2508 l4kwqe
->ipid_count
= DEF_IPID_COUNT
;
2509 l4kwqe
->host_opaque
= csk
->l5_cid
;
2512 l4kwqe
->pg_flags
|= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING
;
2513 l4kwqe
->vlan_tag
= csk
->vlan_id
;
2514 l4kwqe
->l2hdr_nbytes
+= 4;
2517 return dev
->submit_kwqes(dev
, wqes
, 1);
2520 static int cnic_cm_update_pg(struct cnic_sock
*csk
)
2522 struct cnic_dev
*dev
= csk
->dev
;
2523 struct l4_kwq_update_pg
*l4kwqe
;
2524 struct kwqe
*wqes
[1];
2526 l4kwqe
= (struct l4_kwq_update_pg
*) &csk
->kwqe1
;
2527 memset(l4kwqe
, 0, sizeof(*l4kwqe
));
2528 wqes
[0] = (struct kwqe
*) l4kwqe
;
2530 l4kwqe
->opcode
= L4_KWQE_OPCODE_VALUE_UPDATE_PG
;
2532 L4_LAYER_CODE
<< L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT
;
2533 l4kwqe
->pg_cid
= csk
->pg_cid
;
2535 l4kwqe
->da0
= csk
->ha
[0];
2536 l4kwqe
->da1
= csk
->ha
[1];
2537 l4kwqe
->da2
= csk
->ha
[2];
2538 l4kwqe
->da3
= csk
->ha
[3];
2539 l4kwqe
->da4
= csk
->ha
[4];
2540 l4kwqe
->da5
= csk
->ha
[5];
2542 l4kwqe
->pg_host_opaque
= csk
->l5_cid
;
2543 l4kwqe
->pg_valids
= L4_KWQ_UPDATE_PG_VALIDS_DA
;
2545 return dev
->submit_kwqes(dev
, wqes
, 1);
2548 static int cnic_cm_upload_pg(struct cnic_sock
*csk
)
2550 struct cnic_dev
*dev
= csk
->dev
;
2551 struct l4_kwq_upload
*l4kwqe
;
2552 struct kwqe
*wqes
[1];
2554 l4kwqe
= (struct l4_kwq_upload
*) &csk
->kwqe1
;
2555 memset(l4kwqe
, 0, sizeof(*l4kwqe
));
2556 wqes
[0] = (struct kwqe
*) l4kwqe
;
2558 l4kwqe
->opcode
= L4_KWQE_OPCODE_VALUE_UPLOAD_PG
;
2560 L4_LAYER_CODE
<< L4_KWQ_UPLOAD_LAYER_CODE_SHIFT
;
2561 l4kwqe
->cid
= csk
->pg_cid
;
2563 return dev
->submit_kwqes(dev
, wqes
, 1);
2566 static int cnic_cm_conn_req(struct cnic_sock
*csk
)
2568 struct cnic_dev
*dev
= csk
->dev
;
2569 struct l4_kwq_connect_req1
*l4kwqe1
;
2570 struct l4_kwq_connect_req2
*l4kwqe2
;
2571 struct l4_kwq_connect_req3
*l4kwqe3
;
2572 struct kwqe
*wqes
[3];
2576 l4kwqe1
= (struct l4_kwq_connect_req1
*) &csk
->kwqe1
;
2577 l4kwqe2
= (struct l4_kwq_connect_req2
*) &csk
->kwqe2
;
2578 l4kwqe3
= (struct l4_kwq_connect_req3
*) &csk
->kwqe3
;
2579 memset(l4kwqe1
, 0, sizeof(*l4kwqe1
));
2580 memset(l4kwqe2
, 0, sizeof(*l4kwqe2
));
2581 memset(l4kwqe3
, 0, sizeof(*l4kwqe3
));
2583 l4kwqe3
->op_code
= L4_KWQE_OPCODE_VALUE_CONNECT3
;
2585 L4_LAYER_CODE
<< L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT
;
2586 l4kwqe3
->ka_timeout
= csk
->ka_timeout
;
2587 l4kwqe3
->ka_interval
= csk
->ka_interval
;
2588 l4kwqe3
->ka_max_probe_count
= csk
->ka_max_probe_count
;
2589 l4kwqe3
->tos
= csk
->tos
;
2590 l4kwqe3
->ttl
= csk
->ttl
;
2591 l4kwqe3
->snd_seq_scale
= csk
->snd_seq_scale
;
2592 l4kwqe3
->pmtu
= csk
->mtu
;
2593 l4kwqe3
->rcv_buf
= csk
->rcv_buf
;
2594 l4kwqe3
->snd_buf
= csk
->snd_buf
;
2595 l4kwqe3
->seed
= csk
->seed
;
2597 wqes
[0] = (struct kwqe
*) l4kwqe1
;
2598 if (test_bit(SK_F_IPV6
, &csk
->flags
)) {
2599 wqes
[1] = (struct kwqe
*) l4kwqe2
;
2600 wqes
[2] = (struct kwqe
*) l4kwqe3
;
2603 l4kwqe1
->conn_flags
= L4_KWQ_CONNECT_REQ1_IP_V6
;
2604 l4kwqe2
->op_code
= L4_KWQE_OPCODE_VALUE_CONNECT2
;
2606 L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT
|
2607 L4_LAYER_CODE
<< L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT
;
2608 l4kwqe2
->src_ip_v6_2
= be32_to_cpu(csk
->src_ip
[1]);
2609 l4kwqe2
->src_ip_v6_3
= be32_to_cpu(csk
->src_ip
[2]);
2610 l4kwqe2
->src_ip_v6_4
= be32_to_cpu(csk
->src_ip
[3]);
2611 l4kwqe2
->dst_ip_v6_2
= be32_to_cpu(csk
->dst_ip
[1]);
2612 l4kwqe2
->dst_ip_v6_3
= be32_to_cpu(csk
->dst_ip
[2]);
2613 l4kwqe2
->dst_ip_v6_4
= be32_to_cpu(csk
->dst_ip
[3]);
2614 l4kwqe3
->mss
= l4kwqe3
->pmtu
- sizeof(struct ipv6hdr
) -
2615 sizeof(struct tcphdr
);
2617 wqes
[1] = (struct kwqe
*) l4kwqe3
;
2618 l4kwqe3
->mss
= l4kwqe3
->pmtu
- sizeof(struct iphdr
) -
2619 sizeof(struct tcphdr
);
2622 l4kwqe1
->op_code
= L4_KWQE_OPCODE_VALUE_CONNECT1
;
2624 (L4_LAYER_CODE
<< L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT
) |
2625 L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT
;
2626 l4kwqe1
->cid
= csk
->cid
;
2627 l4kwqe1
->pg_cid
= csk
->pg_cid
;
2628 l4kwqe1
->src_ip
= be32_to_cpu(csk
->src_ip
[0]);
2629 l4kwqe1
->dst_ip
= be32_to_cpu(csk
->dst_ip
[0]);
2630 l4kwqe1
->src_port
= be16_to_cpu(csk
->src_port
);
2631 l4kwqe1
->dst_port
= be16_to_cpu(csk
->dst_port
);
2632 if (csk
->tcp_flags
& SK_TCP_NO_DELAY_ACK
)
2633 tcp_flags
|= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK
;
2634 if (csk
->tcp_flags
& SK_TCP_KEEP_ALIVE
)
2635 tcp_flags
|= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE
;
2636 if (csk
->tcp_flags
& SK_TCP_NAGLE
)
2637 tcp_flags
|= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE
;
2638 if (csk
->tcp_flags
& SK_TCP_TIMESTAMP
)
2639 tcp_flags
|= L4_KWQ_CONNECT_REQ1_TIME_STAMP
;
2640 if (csk
->tcp_flags
& SK_TCP_SACK
)
2641 tcp_flags
|= L4_KWQ_CONNECT_REQ1_SACK
;
2642 if (csk
->tcp_flags
& SK_TCP_SEG_SCALING
)
2643 tcp_flags
|= L4_KWQ_CONNECT_REQ1_SEG_SCALING
;
2645 l4kwqe1
->tcp_flags
= tcp_flags
;
2647 return dev
->submit_kwqes(dev
, wqes
, num_wqes
);
2650 static int cnic_cm_close_req(struct cnic_sock
*csk
)
2652 struct cnic_dev
*dev
= csk
->dev
;
2653 struct l4_kwq_close_req
*l4kwqe
;
2654 struct kwqe
*wqes
[1];
2656 l4kwqe
= (struct l4_kwq_close_req
*) &csk
->kwqe2
;
2657 memset(l4kwqe
, 0, sizeof(*l4kwqe
));
2658 wqes
[0] = (struct kwqe
*) l4kwqe
;
2660 l4kwqe
->op_code
= L4_KWQE_OPCODE_VALUE_CLOSE
;
2661 l4kwqe
->flags
= L4_LAYER_CODE
<< L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT
;
2662 l4kwqe
->cid
= csk
->cid
;
2664 return dev
->submit_kwqes(dev
, wqes
, 1);
2667 static int cnic_cm_abort_req(struct cnic_sock
*csk
)
2669 struct cnic_dev
*dev
= csk
->dev
;
2670 struct l4_kwq_reset_req
*l4kwqe
;
2671 struct kwqe
*wqes
[1];
2673 l4kwqe
= (struct l4_kwq_reset_req
*) &csk
->kwqe2
;
2674 memset(l4kwqe
, 0, sizeof(*l4kwqe
));
2675 wqes
[0] = (struct kwqe
*) l4kwqe
;
2677 l4kwqe
->op_code
= L4_KWQE_OPCODE_VALUE_RESET
;
2678 l4kwqe
->flags
= L4_LAYER_CODE
<< L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT
;
2679 l4kwqe
->cid
= csk
->cid
;
2681 return dev
->submit_kwqes(dev
, wqes
, 1);
2684 static int cnic_cm_create(struct cnic_dev
*dev
, int ulp_type
, u32 cid
,
2685 u32 l5_cid
, struct cnic_sock
**csk
, void *context
)
2687 struct cnic_local
*cp
= dev
->cnic_priv
;
2688 struct cnic_sock
*csk1
;
2690 if (l5_cid
>= MAX_CM_SK_TBL_SZ
)
2693 csk1
= &cp
->csk_tbl
[l5_cid
];
2694 if (atomic_read(&csk1
->ref_count
))
2697 if (test_and_set_bit(SK_F_INUSE
, &csk1
->flags
))
2702 csk1
->l5_cid
= l5_cid
;
2703 csk1
->ulp_type
= ulp_type
;
2704 csk1
->context
= context
;
2706 csk1
->ka_timeout
= DEF_KA_TIMEOUT
;
2707 csk1
->ka_interval
= DEF_KA_INTERVAL
;
2708 csk1
->ka_max_probe_count
= DEF_KA_MAX_PROBE_COUNT
;
2709 csk1
->tos
= DEF_TOS
;
2710 csk1
->ttl
= DEF_TTL
;
2711 csk1
->snd_seq_scale
= DEF_SND_SEQ_SCALE
;
2712 csk1
->rcv_buf
= DEF_RCV_BUF
;
2713 csk1
->snd_buf
= DEF_SND_BUF
;
2714 csk1
->seed
= DEF_SEED
;
2720 static void cnic_cm_cleanup(struct cnic_sock
*csk
)
2722 if (csk
->src_port
) {
2723 struct cnic_dev
*dev
= csk
->dev
;
2724 struct cnic_local
*cp
= dev
->cnic_priv
;
2726 cnic_free_id(&cp
->csk_port_tbl
, csk
->src_port
);
2731 static void cnic_close_conn(struct cnic_sock
*csk
)
2733 if (test_bit(SK_F_PG_OFFLD_COMPLETE
, &csk
->flags
)) {
2734 cnic_cm_upload_pg(csk
);
2735 clear_bit(SK_F_PG_OFFLD_COMPLETE
, &csk
->flags
);
2737 cnic_cm_cleanup(csk
);
2740 static int cnic_cm_destroy(struct cnic_sock
*csk
)
2742 if (!cnic_in_use(csk
))
2746 clear_bit(SK_F_INUSE
, &csk
->flags
);
2747 smp_mb__after_clear_bit();
2748 while (atomic_read(&csk
->ref_count
) != 1)
2750 cnic_cm_cleanup(csk
);
2757 static inline u16
cnic_get_vlan(struct net_device
*dev
,
2758 struct net_device
**vlan_dev
)
2760 if (dev
->priv_flags
& IFF_802_1Q_VLAN
) {
2761 *vlan_dev
= vlan_dev_real_dev(dev
);
2762 return vlan_dev_vlan_id(dev
);
2768 static int cnic_get_v4_route(struct sockaddr_in
*dst_addr
,
2769 struct dst_entry
**dst
)
2771 #if defined(CONFIG_INET)
2776 memset(&fl
, 0, sizeof(fl
));
2777 fl
.nl_u
.ip4_u
.daddr
= dst_addr
->sin_addr
.s_addr
;
2779 err
= ip_route_output_key(&init_net
, &rt
, &fl
);
2784 return -ENETUNREACH
;
2788 static int cnic_get_v6_route(struct sockaddr_in6
*dst_addr
,
2789 struct dst_entry
**dst
)
2791 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
2794 memset(&fl
, 0, sizeof(fl
));
2795 ipv6_addr_copy(&fl
.fl6_dst
, &dst_addr
->sin6_addr
);
2796 if (ipv6_addr_type(&fl
.fl6_dst
) & IPV6_ADDR_LINKLOCAL
)
2797 fl
.oif
= dst_addr
->sin6_scope_id
;
2799 *dst
= ip6_route_output(&init_net
, NULL
, &fl
);
2804 return -ENETUNREACH
;
2807 static struct cnic_dev
*cnic_cm_select_dev(struct sockaddr_in
*dst_addr
,
2810 struct cnic_dev
*dev
= NULL
;
2811 struct dst_entry
*dst
;
2812 struct net_device
*netdev
= NULL
;
2813 int err
= -ENETUNREACH
;
2815 if (dst_addr
->sin_family
== AF_INET
)
2816 err
= cnic_get_v4_route(dst_addr
, &dst
);
2817 else if (dst_addr
->sin_family
== AF_INET6
) {
2818 struct sockaddr_in6
*dst_addr6
=
2819 (struct sockaddr_in6
*) dst_addr
;
2821 err
= cnic_get_v6_route(dst_addr6
, &dst
);
2831 cnic_get_vlan(dst
->dev
, &netdev
);
2833 dev
= cnic_from_netdev(netdev
);
2842 static int cnic_resolve_addr(struct cnic_sock
*csk
, struct cnic_sockaddr
*saddr
)
2844 struct cnic_dev
*dev
= csk
->dev
;
2845 struct cnic_local
*cp
= dev
->cnic_priv
;
2847 return cnic_send_nlmsg(cp
, ISCSI_KEVENT_PATH_REQ
, csk
);
2850 static int cnic_get_route(struct cnic_sock
*csk
, struct cnic_sockaddr
*saddr
)
2852 struct cnic_dev
*dev
= csk
->dev
;
2853 struct cnic_local
*cp
= dev
->cnic_priv
;
2854 int is_v6
, err
, rc
= -ENETUNREACH
;
2855 struct dst_entry
*dst
;
2856 struct net_device
*realdev
;
2859 if (saddr
->local
.v6
.sin6_family
== AF_INET6
&&
2860 saddr
->remote
.v6
.sin6_family
== AF_INET6
)
2862 else if (saddr
->local
.v4
.sin_family
== AF_INET
&&
2863 saddr
->remote
.v4
.sin_family
== AF_INET
)
2868 clear_bit(SK_F_IPV6
, &csk
->flags
);
2871 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
2872 set_bit(SK_F_IPV6
, &csk
->flags
);
2873 err
= cnic_get_v6_route(&saddr
->remote
.v6
, &dst
);
2877 if (!dst
|| dst
->error
|| !dst
->dev
)
2880 memcpy(&csk
->dst_ip
[0], &saddr
->remote
.v6
.sin6_addr
,
2881 sizeof(struct in6_addr
));
2882 csk
->dst_port
= saddr
->remote
.v6
.sin6_port
;
2883 local_port
= saddr
->local
.v6
.sin6_port
;
2889 err
= cnic_get_v4_route(&saddr
->remote
.v4
, &dst
);
2893 if (!dst
|| dst
->error
|| !dst
->dev
)
2896 csk
->dst_ip
[0] = saddr
->remote
.v4
.sin_addr
.s_addr
;
2897 csk
->dst_port
= saddr
->remote
.v4
.sin_port
;
2898 local_port
= saddr
->local
.v4
.sin_port
;
2901 csk
->vlan_id
= cnic_get_vlan(dst
->dev
, &realdev
);
2902 if (realdev
!= dev
->netdev
)
2905 if (local_port
>= CNIC_LOCAL_PORT_MIN
&&
2906 local_port
< CNIC_LOCAL_PORT_MAX
) {
2907 if (cnic_alloc_id(&cp
->csk_port_tbl
, local_port
))
2913 local_port
= cnic_alloc_new_id(&cp
->csk_port_tbl
);
2914 if (local_port
== -1) {
2919 csk
->src_port
= local_port
;
2921 csk
->mtu
= dst_mtu(dst
);
2929 static void cnic_init_csk_state(struct cnic_sock
*csk
)
2932 clear_bit(SK_F_OFFLD_SCHED
, &csk
->flags
);
2933 clear_bit(SK_F_CLOSING
, &csk
->flags
);
2936 static int cnic_cm_connect(struct cnic_sock
*csk
, struct cnic_sockaddr
*saddr
)
2940 if (!cnic_in_use(csk
))
2943 if (test_and_set_bit(SK_F_CONNECT_START
, &csk
->flags
))
2946 cnic_init_csk_state(csk
);
2948 err
= cnic_get_route(csk
, saddr
);
2952 err
= cnic_resolve_addr(csk
, saddr
);
2957 clear_bit(SK_F_CONNECT_START
, &csk
->flags
);
2961 static int cnic_cm_abort(struct cnic_sock
*csk
)
2963 struct cnic_local
*cp
= csk
->dev
->cnic_priv
;
2966 if (!cnic_in_use(csk
))
2969 if (cnic_abort_prep(csk
))
2970 return cnic_cm_abort_req(csk
);
2972 /* Getting here means that we haven't started connect, or
2973 * connect was not successful.
2976 csk
->state
= L4_KCQE_OPCODE_VALUE_RESET_COMP
;
2977 if (test_bit(SK_F_PG_OFFLD_COMPLETE
, &csk
->flags
))
2978 opcode
= csk
->state
;
2980 opcode
= L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD
;
2981 cp
->close_conn(csk
, opcode
);
2986 static int cnic_cm_close(struct cnic_sock
*csk
)
2988 if (!cnic_in_use(csk
))
2991 if (cnic_close_prep(csk
)) {
2992 csk
->state
= L4_KCQE_OPCODE_VALUE_CLOSE_COMP
;
2993 return cnic_cm_close_req(csk
);
2998 static void cnic_cm_upcall(struct cnic_local
*cp
, struct cnic_sock
*csk
,
3001 struct cnic_ulp_ops
*ulp_ops
;
3002 int ulp_type
= csk
->ulp_type
;
3005 ulp_ops
= rcu_dereference(cp
->ulp_ops
[ulp_type
]);
3007 if (opcode
== L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE
)
3008 ulp_ops
->cm_connect_complete(csk
);
3009 else if (opcode
== L4_KCQE_OPCODE_VALUE_CLOSE_COMP
)
3010 ulp_ops
->cm_close_complete(csk
);
3011 else if (opcode
== L4_KCQE_OPCODE_VALUE_RESET_RECEIVED
)
3012 ulp_ops
->cm_remote_abort(csk
);
3013 else if (opcode
== L4_KCQE_OPCODE_VALUE_RESET_COMP
)
3014 ulp_ops
->cm_abort_complete(csk
);
3015 else if (opcode
== L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED
)
3016 ulp_ops
->cm_remote_close(csk
);
3021 static int cnic_cm_set_pg(struct cnic_sock
*csk
)
3023 if (cnic_offld_prep(csk
)) {
3024 if (test_bit(SK_F_PG_OFFLD_COMPLETE
, &csk
->flags
))
3025 cnic_cm_update_pg(csk
);
3027 cnic_cm_offload_pg(csk
);
3032 static void cnic_cm_process_offld_pg(struct cnic_dev
*dev
, struct l4_kcq
*kcqe
)
3034 struct cnic_local
*cp
= dev
->cnic_priv
;
3035 u32 l5_cid
= kcqe
->pg_host_opaque
;
3036 u8 opcode
= kcqe
->op_code
;
3037 struct cnic_sock
*csk
= &cp
->csk_tbl
[l5_cid
];
3040 if (!cnic_in_use(csk
))
3043 if (opcode
== L4_KCQE_OPCODE_VALUE_UPDATE_PG
) {
3044 clear_bit(SK_F_OFFLD_SCHED
, &csk
->flags
);
3047 csk
->pg_cid
= kcqe
->pg_cid
;
3048 set_bit(SK_F_PG_OFFLD_COMPLETE
, &csk
->flags
);
3049 cnic_cm_conn_req(csk
);
3055 static void cnic_cm_process_kcqe(struct cnic_dev
*dev
, struct kcqe
*kcqe
)
3057 struct cnic_local
*cp
= dev
->cnic_priv
;
3058 struct l4_kcq
*l4kcqe
= (struct l4_kcq
*) kcqe
;
3059 u8 opcode
= l4kcqe
->op_code
;
3061 struct cnic_sock
*csk
;
3063 if (opcode
== L4_KCQE_OPCODE_VALUE_OFFLOAD_PG
||
3064 opcode
== L4_KCQE_OPCODE_VALUE_UPDATE_PG
) {
3065 cnic_cm_process_offld_pg(dev
, l4kcqe
);
3069 l5_cid
= l4kcqe
->conn_id
;
3071 l5_cid
= l4kcqe
->cid
;
3072 if (l5_cid
>= MAX_CM_SK_TBL_SZ
)
3075 csk
= &cp
->csk_tbl
[l5_cid
];
3078 if (!cnic_in_use(csk
)) {
3084 case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE
:
3085 if (l4kcqe
->status
== 0)
3086 set_bit(SK_F_OFFLD_COMPLETE
, &csk
->flags
);
3088 smp_mb__before_clear_bit();
3089 clear_bit(SK_F_OFFLD_SCHED
, &csk
->flags
);
3090 cnic_cm_upcall(cp
, csk
, opcode
);
3093 case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED
:
3094 if (test_and_clear_bit(SK_F_OFFLD_COMPLETE
, &csk
->flags
))
3095 csk
->state
= opcode
;
3097 case L4_KCQE_OPCODE_VALUE_CLOSE_COMP
:
3098 case L4_KCQE_OPCODE_VALUE_RESET_COMP
:
3099 case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE
:
3100 case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD
:
3101 cp
->close_conn(csk
, opcode
);
3104 case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED
:
3105 cnic_cm_upcall(cp
, csk
, opcode
);
3111 static void cnic_cm_indicate_kcqe(void *data
, struct kcqe
*kcqe
[], u32 num
)
3113 struct cnic_dev
*dev
= data
;
3116 for (i
= 0; i
< num
; i
++)
3117 cnic_cm_process_kcqe(dev
, kcqe
[i
]);
3120 static struct cnic_ulp_ops cm_ulp_ops
= {
3121 .indicate_kcqes
= cnic_cm_indicate_kcqe
,
3124 static void cnic_cm_free_mem(struct cnic_dev
*dev
)
3126 struct cnic_local
*cp
= dev
->cnic_priv
;
3130 cnic_free_id_tbl(&cp
->csk_port_tbl
);
3133 static int cnic_cm_alloc_mem(struct cnic_dev
*dev
)
3135 struct cnic_local
*cp
= dev
->cnic_priv
;
3137 cp
->csk_tbl
= kzalloc(sizeof(struct cnic_sock
) * MAX_CM_SK_TBL_SZ
,
3142 if (cnic_init_id_tbl(&cp
->csk_port_tbl
, CNIC_LOCAL_PORT_RANGE
,
3143 CNIC_LOCAL_PORT_MIN
)) {
3144 cnic_cm_free_mem(dev
);
3150 static int cnic_ready_to_close(struct cnic_sock
*csk
, u32 opcode
)
3152 if ((opcode
== csk
->state
) ||
3153 (opcode
== L4_KCQE_OPCODE_VALUE_RESET_RECEIVED
&&
3154 csk
->state
== L4_KCQE_OPCODE_VALUE_CLOSE_COMP
)) {
3155 if (!test_and_set_bit(SK_F_CLOSING
, &csk
->flags
))
3161 static void cnic_close_bnx2_conn(struct cnic_sock
*csk
, u32 opcode
)
3163 struct cnic_dev
*dev
= csk
->dev
;
3164 struct cnic_local
*cp
= dev
->cnic_priv
;
3166 clear_bit(SK_F_CONNECT_START
, &csk
->flags
);
3167 if (cnic_ready_to_close(csk
, opcode
)) {
3168 cnic_close_conn(csk
);
3169 cnic_cm_upcall(cp
, csk
, opcode
);
3173 static void cnic_cm_stop_bnx2_hw(struct cnic_dev
*dev
)
3177 static int cnic_cm_init_bnx2_hw(struct cnic_dev
*dev
)
3181 get_random_bytes(&seed
, 4);
3182 cnic_ctx_wr(dev
, 45, 0, seed
);
3186 static void cnic_close_bnx2x_conn(struct cnic_sock
*csk
, u32 opcode
)
3188 struct cnic_dev
*dev
= csk
->dev
;
3189 struct cnic_local
*cp
= dev
->cnic_priv
;
3190 struct cnic_context
*ctx
= &cp
->ctx_tbl
[csk
->l5_cid
];
3191 union l5cm_specific_data l5_data
;
3193 int close_complete
= 0;
3196 case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED
:
3197 case L4_KCQE_OPCODE_VALUE_CLOSE_COMP
:
3198 case L4_KCQE_OPCODE_VALUE_RESET_COMP
:
3199 if (cnic_ready_to_close(csk
, opcode
))
3200 cmd
= L5CM_RAMROD_CMD_ID_SEARCHER_DELETE
;
3202 case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE
:
3203 cmd
= L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD
;
3205 case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD
:
3210 memset(&l5_data
, 0, sizeof(l5_data
));
3212 cnic_submit_kwqe_16(dev
, cmd
, csk
->cid
, ISCSI_CONNECTION_TYPE
,
3214 } else if (close_complete
) {
3215 ctx
->timestamp
= jiffies
;
3216 cnic_close_conn(csk
);
3217 cnic_cm_upcall(cp
, csk
, csk
->state
);
3221 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev
*dev
)
3225 static int cnic_cm_init_bnx2x_hw(struct cnic_dev
*dev
)
3227 struct cnic_local
*cp
= dev
->cnic_priv
;
3228 int func
= CNIC_FUNC(cp
);
3230 cnic_init_bnx2x_mac(dev
);
3231 cnic_bnx2x_set_tcp_timestamp(dev
, 1);
3233 CNIC_WR16(dev
, BAR_XSTRORM_INTMEM
+
3234 XSTORM_ISCSI_LOCAL_VLAN_OFFSET(func
), 0);
3236 CNIC_WR(dev
, BAR_XSTRORM_INTMEM
+
3237 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(func
), 1);
3238 CNIC_WR(dev
, BAR_XSTRORM_INTMEM
+
3239 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(func
),
3242 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
3243 XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(func
), DEF_TTL
);
3244 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
3245 XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(func
), DEF_TOS
);
3246 CNIC_WR8(dev
, BAR_XSTRORM_INTMEM
+
3247 XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(func
), 2);
3248 CNIC_WR(dev
, BAR_XSTRORM_INTMEM
+
3249 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(func
), DEF_SWS_TIMER
);
3251 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+ TSTORM_TCP_MAX_CWND_OFFSET(func
),
3256 static int cnic_cm_open(struct cnic_dev
*dev
)
3258 struct cnic_local
*cp
= dev
->cnic_priv
;
3261 err
= cnic_cm_alloc_mem(dev
);
3265 err
= cp
->start_cm(dev
);
3270 dev
->cm_create
= cnic_cm_create
;
3271 dev
->cm_destroy
= cnic_cm_destroy
;
3272 dev
->cm_connect
= cnic_cm_connect
;
3273 dev
->cm_abort
= cnic_cm_abort
;
3274 dev
->cm_close
= cnic_cm_close
;
3275 dev
->cm_select_dev
= cnic_cm_select_dev
;
3277 cp
->ulp_handle
[CNIC_ULP_L4
] = dev
;
3278 rcu_assign_pointer(cp
->ulp_ops
[CNIC_ULP_L4
], &cm_ulp_ops
);
3282 cnic_cm_free_mem(dev
);
3286 static int cnic_cm_shutdown(struct cnic_dev
*dev
)
3288 struct cnic_local
*cp
= dev
->cnic_priv
;
3296 for (i
= 0; i
< MAX_CM_SK_TBL_SZ
; i
++) {
3297 struct cnic_sock
*csk
= &cp
->csk_tbl
[i
];
3299 clear_bit(SK_F_INUSE
, &csk
->flags
);
3300 cnic_cm_cleanup(csk
);
3302 cnic_cm_free_mem(dev
);
3307 static void cnic_init_context(struct cnic_dev
*dev
, u32 cid
)
3309 struct cnic_local
*cp
= dev
->cnic_priv
;
3313 if (CHIP_NUM(cp
) == CHIP_NUM_5709
)
3316 cid_addr
= GET_CID_ADDR(cid
);
3318 for (i
= 0; i
< CTX_SIZE
; i
+= 4)
3319 cnic_ctx_wr(dev
, cid_addr
, i
, 0);
3322 static int cnic_setup_5709_context(struct cnic_dev
*dev
, int valid
)
3324 struct cnic_local
*cp
= dev
->cnic_priv
;
3326 u32 valid_bit
= valid
? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID
: 0;
3328 if (CHIP_NUM(cp
) != CHIP_NUM_5709
)
3331 for (i
= 0; i
< cp
->ctx_blks
; i
++) {
3333 u32 idx
= cp
->ctx_arr
[i
].cid
/ cp
->cids_per_blk
;
3336 memset(cp
->ctx_arr
[i
].ctx
, 0, BCM_PAGE_SIZE
);
3338 CNIC_WR(dev
, BNX2_CTX_HOST_PAGE_TBL_DATA0
,
3339 (cp
->ctx_arr
[i
].mapping
& 0xffffffff) | valid_bit
);
3340 CNIC_WR(dev
, BNX2_CTX_HOST_PAGE_TBL_DATA1
,
3341 (u64
) cp
->ctx_arr
[i
].mapping
>> 32);
3342 CNIC_WR(dev
, BNX2_CTX_HOST_PAGE_TBL_CTRL
, idx
|
3343 BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ
);
3344 for (j
= 0; j
< 10; j
++) {
3346 val
= CNIC_RD(dev
, BNX2_CTX_HOST_PAGE_TBL_CTRL
);
3347 if (!(val
& BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ
))
3351 if (val
& BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ
) {
3359 static void cnic_free_irq(struct cnic_dev
*dev
)
3361 struct cnic_local
*cp
= dev
->cnic_priv
;
3362 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3364 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3365 cp
->disable_int_sync(dev
);
3366 tasklet_disable(&cp
->cnic_irq_task
);
3367 free_irq(ethdev
->irq_arr
[0].vector
, dev
);
3371 static int cnic_init_bnx2_irq(struct cnic_dev
*dev
)
3373 struct cnic_local
*cp
= dev
->cnic_priv
;
3374 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3376 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3378 int sblk_num
= cp
->status_blk_num
;
3379 u32 base
= ((sblk_num
- 1) * BNX2_HC_SB_CONFIG_SIZE
) +
3380 BNX2_HC_SB_CONFIG_1
;
3382 CNIC_WR(dev
, base
, BNX2_HC_SB_CONFIG_1_ONE_SHOT
);
3384 CNIC_WR(dev
, base
+ BNX2_HC_COMP_PROD_TRIP_OFF
, (2 << 16) | 8);
3385 CNIC_WR(dev
, base
+ BNX2_HC_COM_TICKS_OFF
, (64 << 16) | 220);
3386 CNIC_WR(dev
, base
+ BNX2_HC_CMD_TICKS_OFF
, (64 << 16) | 220);
3388 cp
->bnx2_status_blk
= cp
->status_blk
;
3389 cp
->last_status_idx
= cp
->bnx2_status_blk
->status_idx
;
3390 tasklet_init(&cp
->cnic_irq_task
, cnic_service_bnx2_msix
,
3391 (unsigned long) dev
);
3392 err
= request_irq(ethdev
->irq_arr
[0].vector
, cnic_irq
, 0,
3395 tasklet_disable(&cp
->cnic_irq_task
);
3398 while (cp
->bnx2_status_blk
->status_completion_producer_index
&&
3400 CNIC_WR(dev
, BNX2_HC_COALESCE_NOW
,
3401 1 << (11 + sblk_num
));
3406 if (cp
->bnx2_status_blk
->status_completion_producer_index
) {
3412 struct status_block
*sblk
= cp
->status_blk
;
3413 u32 hc_cmd
= CNIC_RD(dev
, BNX2_HC_COMMAND
);
3416 while (sblk
->status_completion_producer_index
&& i
< 10) {
3417 CNIC_WR(dev
, BNX2_HC_COMMAND
,
3418 hc_cmd
| BNX2_HC_COMMAND_COAL_NOW_WO_INT
);
3423 if (sblk
->status_completion_producer_index
)
3430 printk(KERN_ERR PFX
"%s: " "KCQ index not resetting to 0.\n",
3435 static void cnic_enable_bnx2_int(struct cnic_dev
*dev
)
3437 struct cnic_local
*cp
= dev
->cnic_priv
;
3438 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3440 if (!(ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
))
3443 CNIC_WR(dev
, BNX2_PCICFG_INT_ACK_CMD
, cp
->int_num
|
3444 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID
| cp
->last_status_idx
);
3447 static void cnic_disable_bnx2_int_sync(struct cnic_dev
*dev
)
3449 struct cnic_local
*cp
= dev
->cnic_priv
;
3450 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3452 if (!(ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
))
3455 CNIC_WR(dev
, BNX2_PCICFG_INT_ACK_CMD
, cp
->int_num
|
3456 BNX2_PCICFG_INT_ACK_CMD_MASK_INT
);
3457 CNIC_RD(dev
, BNX2_PCICFG_INT_ACK_CMD
);
3458 synchronize_irq(ethdev
->irq_arr
[0].vector
);
3461 static void cnic_init_bnx2_tx_ring(struct cnic_dev
*dev
)
3463 struct cnic_local
*cp
= dev
->cnic_priv
;
3464 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3465 u32 cid_addr
, tx_cid
, sb_id
;
3466 u32 val
, offset0
, offset1
, offset2
, offset3
;
3470 struct status_block
*s_blk
= cp
->status_blk
;
3472 sb_id
= cp
->status_blk_num
;
3474 cnic_init_context(dev
, tx_cid
);
3475 cnic_init_context(dev
, tx_cid
+ 1);
3476 cp
->tx_cons_ptr
= &s_blk
->status_tx_quick_consumer_index2
;
3477 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3478 struct status_block_msix
*sblk
= cp
->status_blk
;
3480 tx_cid
= TX_TSS_CID
+ sb_id
- 1;
3481 cnic_init_context(dev
, tx_cid
);
3482 CNIC_WR(dev
, BNX2_TSCH_TSS_CFG
, (sb_id
<< 24) |
3484 cp
->tx_cons_ptr
= &sblk
->status_tx_quick_consumer_index
;
3486 cp
->tx_cons
= *cp
->tx_cons_ptr
;
3488 cid_addr
= GET_CID_ADDR(tx_cid
);
3489 if (CHIP_NUM(cp
) == CHIP_NUM_5709
) {
3490 u32 cid_addr2
= GET_CID_ADDR(tx_cid
+ 4) + 0x40;
3492 for (i
= 0; i
< PHY_CTX_SIZE
; i
+= 4)
3493 cnic_ctx_wr(dev
, cid_addr2
, i
, 0);
3495 offset0
= BNX2_L2CTX_TYPE_XI
;
3496 offset1
= BNX2_L2CTX_CMD_TYPE_XI
;
3497 offset2
= BNX2_L2CTX_TBDR_BHADDR_HI_XI
;
3498 offset3
= BNX2_L2CTX_TBDR_BHADDR_LO_XI
;
3500 offset0
= BNX2_L2CTX_TYPE
;
3501 offset1
= BNX2_L2CTX_CMD_TYPE
;
3502 offset2
= BNX2_L2CTX_TBDR_BHADDR_HI
;
3503 offset3
= BNX2_L2CTX_TBDR_BHADDR_LO
;
3505 val
= BNX2_L2CTX_TYPE_TYPE_L2
| BNX2_L2CTX_TYPE_SIZE_L2
;
3506 cnic_ctx_wr(dev
, cid_addr
, offset0
, val
);
3508 val
= BNX2_L2CTX_CMD_TYPE_TYPE_L2
| (8 << 16);
3509 cnic_ctx_wr(dev
, cid_addr
, offset1
, val
);
3511 txbd
= (struct tx_bd
*) cp
->l2_ring
;
3513 buf_map
= cp
->l2_buf_map
;
3514 for (i
= 0; i
< MAX_TX_DESC_CNT
; i
++, txbd
++) {
3515 txbd
->tx_bd_haddr_hi
= (u64
) buf_map
>> 32;
3516 txbd
->tx_bd_haddr_lo
= (u64
) buf_map
& 0xffffffff;
3518 val
= (u64
) cp
->l2_ring_map
>> 32;
3519 cnic_ctx_wr(dev
, cid_addr
, offset2
, val
);
3520 txbd
->tx_bd_haddr_hi
= val
;
3522 val
= (u64
) cp
->l2_ring_map
& 0xffffffff;
3523 cnic_ctx_wr(dev
, cid_addr
, offset3
, val
);
3524 txbd
->tx_bd_haddr_lo
= val
;
3527 static void cnic_init_bnx2_rx_ring(struct cnic_dev
*dev
)
3529 struct cnic_local
*cp
= dev
->cnic_priv
;
3530 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3531 u32 cid_addr
, sb_id
, val
, coal_reg
, coal_val
;
3534 struct status_block
*s_blk
= cp
->status_blk
;
3536 sb_id
= cp
->status_blk_num
;
3537 cnic_init_context(dev
, 2);
3538 cp
->rx_cons_ptr
= &s_blk
->status_rx_quick_consumer_index2
;
3539 coal_reg
= BNX2_HC_COMMAND
;
3540 coal_val
= CNIC_RD(dev
, coal_reg
);
3541 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3542 struct status_block_msix
*sblk
= cp
->status_blk
;
3544 cp
->rx_cons_ptr
= &sblk
->status_rx_quick_consumer_index
;
3545 coal_reg
= BNX2_HC_COALESCE_NOW
;
3546 coal_val
= 1 << (11 + sb_id
);
3549 while (!(*cp
->rx_cons_ptr
!= 0) && i
< 10) {
3550 CNIC_WR(dev
, coal_reg
, coal_val
);
3555 cp
->rx_cons
= *cp
->rx_cons_ptr
;
3557 cid_addr
= GET_CID_ADDR(2);
3558 val
= BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE
|
3559 BNX2_L2CTX_CTX_TYPE_SIZE_L2
| (0x02 << 8);
3560 cnic_ctx_wr(dev
, cid_addr
, BNX2_L2CTX_CTX_TYPE
, val
);
3563 val
= 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT
;
3565 val
= BNX2_L2CTX_L2_STATUSB_NUM(sb_id
);
3566 cnic_ctx_wr(dev
, cid_addr
, BNX2_L2CTX_HOST_BDIDX
, val
);
3568 rxbd
= (struct rx_bd
*) (cp
->l2_ring
+ BCM_PAGE_SIZE
);
3569 for (i
= 0; i
< MAX_RX_DESC_CNT
; i
++, rxbd
++) {
3571 int n
= (i
% cp
->l2_rx_ring_size
) + 1;
3573 buf_map
= cp
->l2_buf_map
+ (n
* cp
->l2_single_buf_size
);
3574 rxbd
->rx_bd_len
= cp
->l2_single_buf_size
;
3575 rxbd
->rx_bd_flags
= RX_BD_FLAGS_START
| RX_BD_FLAGS_END
;
3576 rxbd
->rx_bd_haddr_hi
= (u64
) buf_map
>> 32;
3577 rxbd
->rx_bd_haddr_lo
= (u64
) buf_map
& 0xffffffff;
3579 val
= (u64
) (cp
->l2_ring_map
+ BCM_PAGE_SIZE
) >> 32;
3580 cnic_ctx_wr(dev
, cid_addr
, BNX2_L2CTX_NX_BDHADDR_HI
, val
);
3581 rxbd
->rx_bd_haddr_hi
= val
;
3583 val
= (u64
) (cp
->l2_ring_map
+ BCM_PAGE_SIZE
) & 0xffffffff;
3584 cnic_ctx_wr(dev
, cid_addr
, BNX2_L2CTX_NX_BDHADDR_LO
, val
);
3585 rxbd
->rx_bd_haddr_lo
= val
;
3587 val
= cnic_reg_rd_ind(dev
, BNX2_RXP_SCRATCH_RXP_FLOOD
);
3588 cnic_reg_wr_ind(dev
, BNX2_RXP_SCRATCH_RXP_FLOOD
, val
| (1 << 2));
3591 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev
*dev
)
3593 struct kwqe
*wqes
[1], l2kwqe
;
3595 memset(&l2kwqe
, 0, sizeof(l2kwqe
));
3597 l2kwqe
.kwqe_op_flag
= (L2_LAYER_CODE
<< KWQE_FLAGS_LAYER_SHIFT
) |
3598 (L2_KWQE_OPCODE_VALUE_FLUSH
<<
3599 KWQE_OPCODE_SHIFT
) | 2;
3600 dev
->submit_kwqes(dev
, wqes
, 1);
3603 static void cnic_set_bnx2_mac(struct cnic_dev
*dev
)
3605 struct cnic_local
*cp
= dev
->cnic_priv
;
3608 val
= cp
->func
<< 2;
3610 cp
->shmem_base
= cnic_reg_rd_ind(dev
, BNX2_SHM_HDR_ADDR_0
+ val
);
3612 val
= cnic_reg_rd_ind(dev
, cp
->shmem_base
+
3613 BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER
);
3614 dev
->mac_addr
[0] = (u8
) (val
>> 8);
3615 dev
->mac_addr
[1] = (u8
) val
;
3617 CNIC_WR(dev
, BNX2_EMAC_MAC_MATCH4
, val
);
3619 val
= cnic_reg_rd_ind(dev
, cp
->shmem_base
+
3620 BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER
);
3621 dev
->mac_addr
[2] = (u8
) (val
>> 24);
3622 dev
->mac_addr
[3] = (u8
) (val
>> 16);
3623 dev
->mac_addr
[4] = (u8
) (val
>> 8);
3624 dev
->mac_addr
[5] = (u8
) val
;
3626 CNIC_WR(dev
, BNX2_EMAC_MAC_MATCH5
, val
);
3628 val
= 4 | BNX2_RPM_SORT_USER2_BC_EN
;
3629 if (CHIP_NUM(cp
) != CHIP_NUM_5709
)
3630 val
|= BNX2_RPM_SORT_USER2_PROM_VLAN
;
3632 CNIC_WR(dev
, BNX2_RPM_SORT_USER2
, 0x0);
3633 CNIC_WR(dev
, BNX2_RPM_SORT_USER2
, val
);
3634 CNIC_WR(dev
, BNX2_RPM_SORT_USER2
, val
| BNX2_RPM_SORT_USER2_ENA
);
3637 static int cnic_start_bnx2_hw(struct cnic_dev
*dev
)
3639 struct cnic_local
*cp
= dev
->cnic_priv
;
3640 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3641 struct status_block
*sblk
= cp
->status_blk
;
3645 cnic_set_bnx2_mac(dev
);
3647 val
= CNIC_RD(dev
, BNX2_MQ_CONFIG
);
3648 val
&= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE
;
3649 if (BCM_PAGE_BITS
> 12)
3650 val
|= (12 - 8) << 4;
3652 val
|= (BCM_PAGE_BITS
- 8) << 4;
3654 CNIC_WR(dev
, BNX2_MQ_CONFIG
, val
);
3656 CNIC_WR(dev
, BNX2_HC_COMP_PROD_TRIP
, (2 << 16) | 8);
3657 CNIC_WR(dev
, BNX2_HC_COM_TICKS
, (64 << 16) | 220);
3658 CNIC_WR(dev
, BNX2_HC_CMD_TICKS
, (64 << 16) | 220);
3660 err
= cnic_setup_5709_context(dev
, 1);
3664 cnic_init_context(dev
, KWQ_CID
);
3665 cnic_init_context(dev
, KCQ_CID
);
3667 cp
->kwq_cid_addr
= GET_CID_ADDR(KWQ_CID
);
3668 cp
->kwq_io_addr
= MB_GET_CID_ADDR(KWQ_CID
) + L5_KRNLQ_HOST_QIDX
;
3670 cp
->max_kwq_idx
= MAX_KWQ_IDX
;
3671 cp
->kwq_prod_idx
= 0;
3672 cp
->kwq_con_idx
= 0;
3673 cp
->cnic_local_flags
|= CNIC_LCL_FL_KWQ_INIT
;
3675 if (CHIP_NUM(cp
) == CHIP_NUM_5706
|| CHIP_NUM(cp
) == CHIP_NUM_5708
)
3676 cp
->kwq_con_idx_ptr
= &sblk
->status_rx_quick_consumer_index15
;
3678 cp
->kwq_con_idx_ptr
= &sblk
->status_cmd_consumer_index
;
3680 /* Initialize the kernel work queue context. */
3681 val
= KRNLQ_TYPE_TYPE_KRNLQ
| KRNLQ_SIZE_TYPE_SIZE
|
3682 (BCM_PAGE_BITS
- 8) | KRNLQ_FLAGS_QE_SELF_SEQ
;
3683 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_TYPE
, val
);
3685 val
= (BCM_PAGE_SIZE
/ sizeof(struct kwqe
) - 1) << 16;
3686 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_QE_SELF_SEQ_MAX
, val
);
3688 val
= ((BCM_PAGE_SIZE
/ sizeof(struct kwqe
)) << 16) | KWQ_PAGE_CNT
;
3689 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_PGTBL_NPAGES
, val
);
3691 val
= (u32
) ((u64
) cp
->kwq_info
.pgtbl_map
>> 32);
3692 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_PGTBL_HADDR_HI
, val
);
3694 val
= (u32
) cp
->kwq_info
.pgtbl_map
;
3695 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_PGTBL_HADDR_LO
, val
);
3697 cp
->kcq_cid_addr
= GET_CID_ADDR(KCQ_CID
);
3698 cp
->kcq_io_addr
= MB_GET_CID_ADDR(KCQ_CID
) + L5_KRNLQ_HOST_QIDX
;
3700 cp
->kcq_prod_idx
= 0;
3702 /* Initialize the kernel complete queue context. */
3703 val
= KRNLQ_TYPE_TYPE_KRNLQ
| KRNLQ_SIZE_TYPE_SIZE
|
3704 (BCM_PAGE_BITS
- 8) | KRNLQ_FLAGS_QE_SELF_SEQ
;
3705 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_TYPE
, val
);
3707 val
= (BCM_PAGE_SIZE
/ sizeof(struct kcqe
) - 1) << 16;
3708 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_QE_SELF_SEQ_MAX
, val
);
3710 val
= ((BCM_PAGE_SIZE
/ sizeof(struct kcqe
)) << 16) | KCQ_PAGE_CNT
;
3711 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_PGTBL_NPAGES
, val
);
3713 val
= (u32
) ((u64
) cp
->kcq_info
.pgtbl_map
>> 32);
3714 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_PGTBL_HADDR_HI
, val
);
3716 val
= (u32
) cp
->kcq_info
.pgtbl_map
;
3717 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_PGTBL_HADDR_LO
, val
);
3720 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3721 u32 sb_id
= cp
->status_blk_num
;
3722 u32 sb
= BNX2_L2CTX_L5_STATUSB_NUM(sb_id
);
3724 cp
->int_num
= sb_id
<< BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT
;
3725 cnic_ctx_wr(dev
, cp
->kwq_cid_addr
, L5_KRNLQ_HOST_QIDX
, sb
);
3726 cnic_ctx_wr(dev
, cp
->kcq_cid_addr
, L5_KRNLQ_HOST_QIDX
, sb
);
3729 /* Enable Commnad Scheduler notification when we write to the
3730 * host producer index of the kernel contexts. */
3731 CNIC_WR(dev
, BNX2_MQ_KNL_CMD_MASK1
, 2);
3733 /* Enable Command Scheduler notification when we write to either
3734 * the Send Queue or Receive Queue producer indexes of the kernel
3735 * bypass contexts. */
3736 CNIC_WR(dev
, BNX2_MQ_KNL_BYP_CMD_MASK1
, 7);
3737 CNIC_WR(dev
, BNX2_MQ_KNL_BYP_WRITE_MASK1
, 7);
3739 /* Notify COM when the driver post an application buffer. */
3740 CNIC_WR(dev
, BNX2_MQ_KNL_RX_V2P_MASK2
, 0x2000);
3742 /* Set the CP and COM doorbells. These two processors polls the
3743 * doorbell for a non zero value before running. This must be done
3744 * after setting up the kernel queue contexts. */
3745 cnic_reg_wr_ind(dev
, BNX2_CP_SCRATCH
+ 0x20, 1);
3746 cnic_reg_wr_ind(dev
, BNX2_COM_SCRATCH
+ 0x20, 1);
3748 cnic_init_bnx2_tx_ring(dev
);
3749 cnic_init_bnx2_rx_ring(dev
);
3751 err
= cnic_init_bnx2_irq(dev
);
3753 printk(KERN_ERR PFX
"%s: cnic_init_irq failed\n",
3755 cnic_reg_wr_ind(dev
, BNX2_CP_SCRATCH
+ 0x20, 0);
3756 cnic_reg_wr_ind(dev
, BNX2_COM_SCRATCH
+ 0x20, 0);
3763 static void cnic_setup_bnx2x_context(struct cnic_dev
*dev
)
3765 struct cnic_local
*cp
= dev
->cnic_priv
;
3766 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3767 u32 start_offset
= ethdev
->ctx_tbl_offset
;
3770 for (i
= 0; i
< cp
->ctx_blks
; i
++) {
3771 struct cnic_ctx
*ctx
= &cp
->ctx_arr
[i
];
3772 dma_addr_t map
= ctx
->mapping
;
3774 if (cp
->ctx_align
) {
3775 unsigned long mask
= cp
->ctx_align
- 1;
3777 map
= (map
+ mask
) & ~mask
;
3780 cnic_ctx_tbl_wr(dev
, start_offset
+ i
, map
);
3784 static int cnic_init_bnx2x_irq(struct cnic_dev
*dev
)
3786 struct cnic_local
*cp
= dev
->cnic_priv
;
3787 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
3790 tasklet_init(&cp
->cnic_irq_task
, cnic_service_bnx2x_bh
,
3791 (unsigned long) dev
);
3792 if (ethdev
->drv_state
& CNIC_DRV_STATE_USING_MSIX
) {
3793 err
= request_irq(ethdev
->irq_arr
[0].vector
, cnic_irq
, 0,
3796 tasklet_disable(&cp
->cnic_irq_task
);
3801 static void cnic_enable_bnx2x_int(struct cnic_dev
*dev
)
3803 struct cnic_local
*cp
= dev
->cnic_priv
;
3804 u8 sb_id
= cp
->status_blk_num
;
3805 int port
= CNIC_PORT(cp
);
3807 CNIC_WR8(dev
, BAR_CSTRORM_INTMEM
+
3808 CSTORM_SB_HC_TIMEOUT_C_OFFSET(port
, sb_id
,
3809 HC_INDEX_C_ISCSI_EQ_CONS
),
3811 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+
3812 CSTORM_SB_HC_DISABLE_C_OFFSET(port
, sb_id
,
3813 HC_INDEX_C_ISCSI_EQ_CONS
), 0);
3816 static void cnic_disable_bnx2x_int_sync(struct cnic_dev
*dev
)
3820 static void cnic_init_bnx2x_tx_ring(struct cnic_dev
*dev
)
3822 struct cnic_local
*cp
= dev
->cnic_priv
;
3823 union eth_tx_bd_types
*txbd
= (union eth_tx_bd_types
*) cp
->l2_ring
;
3824 struct eth_context
*context
;
3825 struct regpair context_addr
;
3827 int func
= CNIC_FUNC(cp
);
3828 int port
= CNIC_PORT(cp
);
3830 int cli
= BNX2X_ISCSI_CL_ID(CNIC_E1HVN(cp
));
3833 memset(txbd
, 0, BCM_PAGE_SIZE
);
3835 buf_map
= cp
->l2_buf_map
;
3836 for (i
= 0; i
< MAX_TX_DESC_CNT
; i
+= 3, txbd
+= 3) {
3837 struct eth_tx_start_bd
*start_bd
= &txbd
->start_bd
;
3838 struct eth_tx_bd
*reg_bd
= &((txbd
+ 2)->reg_bd
);
3840 start_bd
->addr_hi
= cpu_to_le32((u64
) buf_map
>> 32);
3841 start_bd
->addr_lo
= cpu_to_le32(buf_map
& 0xffffffff);
3842 reg_bd
->addr_hi
= start_bd
->addr_hi
;
3843 reg_bd
->addr_lo
= start_bd
->addr_lo
+ 0x10;
3844 start_bd
->nbytes
= cpu_to_le16(0x10);
3845 start_bd
->nbd
= cpu_to_le16(3);
3846 start_bd
->bd_flags
.as_bitfield
= ETH_TX_BD_FLAGS_START_BD
;
3847 start_bd
->general_data
= (UNICAST_ADDRESS
<<
3848 ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT
);
3849 start_bd
->general_data
|= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT
);
3852 context
= cnic_get_bnx2x_ctx(dev
, BNX2X_ISCSI_L2_CID
, 1, &context_addr
);
3854 val
= (u64
) cp
->l2_ring_map
>> 32;
3855 txbd
->next_bd
.addr_hi
= cpu_to_le32(val
);
3857 context
->xstorm_st_context
.tx_bd_page_base_hi
= val
;
3859 val
= (u64
) cp
->l2_ring_map
& 0xffffffff;
3860 txbd
->next_bd
.addr_lo
= cpu_to_le32(val
);
3862 context
->xstorm_st_context
.tx_bd_page_base_lo
= val
;
3864 context
->cstorm_st_context
.sb_index_number
=
3865 HC_INDEX_DEF_C_ETH_ISCSI_CQ_CONS
;
3866 context
->cstorm_st_context
.status_block_id
= BNX2X_DEF_SB_ID
;
3868 context
->xstorm_st_context
.statistics_data
= (cli
|
3869 XSTORM_ETH_ST_CONTEXT_STATISTICS_ENABLE
);
3871 context
->xstorm_ag_context
.cdu_reserved
=
3872 CDU_RSRVD_VALUE_TYPE_A(BNX2X_HW_CID(BNX2X_ISCSI_L2_CID
, func
),
3873 CDU_REGION_NUMBER_XCM_AG
,
3874 ETH_CONNECTION_TYPE
);
3876 /* reset xstorm per client statistics */
3877 val
= BAR_XSTRORM_INTMEM
+
3878 XSTORM_PER_COUNTER_ID_STATS_OFFSET(port
, cli
);
3879 for (i
= 0; i
< sizeof(struct xstorm_per_client_stats
) / 4; i
++)
3880 CNIC_WR(dev
, val
+ i
* 4, 0);
3883 &cp
->bnx2x_def_status_blk
->c_def_status_block
.index_values
[
3884 HC_INDEX_DEF_C_ETH_ISCSI_CQ_CONS
];
3887 static void cnic_init_bnx2x_rx_ring(struct cnic_dev
*dev
)
3889 struct cnic_local
*cp
= dev
->cnic_priv
;
3890 struct eth_rx_bd
*rxbd
= (struct eth_rx_bd
*) (cp
->l2_ring
+
3892 struct eth_rx_cqe_next_page
*rxcqe
= (struct eth_rx_cqe_next_page
*)
3893 (cp
->l2_ring
+ (2 * BCM_PAGE_SIZE
));
3894 struct eth_context
*context
;
3895 struct regpair context_addr
;
3897 int port
= CNIC_PORT(cp
);
3898 int func
= CNIC_FUNC(cp
);
3899 int cli
= BNX2X_ISCSI_CL_ID(CNIC_E1HVN(cp
));
3901 struct tstorm_eth_client_config tstorm_client
= {0};
3903 for (i
= 0; i
< BNX2X_MAX_RX_DESC_CNT
; i
++, rxbd
++) {
3905 int n
= (i
% cp
->l2_rx_ring_size
) + 1;
3907 buf_map
= cp
->l2_buf_map
+ (n
* cp
->l2_single_buf_size
);
3908 rxbd
->addr_hi
= cpu_to_le32((u64
) buf_map
>> 32);
3909 rxbd
->addr_lo
= cpu_to_le32(buf_map
& 0xffffffff);
3911 context
= cnic_get_bnx2x_ctx(dev
, BNX2X_ISCSI_L2_CID
, 0, &context_addr
);
3913 val
= (u64
) (cp
->l2_ring_map
+ BCM_PAGE_SIZE
) >> 32;
3914 rxbd
->addr_hi
= cpu_to_le32(val
);
3916 context
->ustorm_st_context
.common
.bd_page_base_hi
= val
;
3918 val
= (u64
) (cp
->l2_ring_map
+ BCM_PAGE_SIZE
) & 0xffffffff;
3919 rxbd
->addr_lo
= cpu_to_le32(val
);
3921 context
->ustorm_st_context
.common
.bd_page_base_lo
= val
;
3923 context
->ustorm_st_context
.common
.sb_index_numbers
=
3924 BNX2X_ISCSI_RX_SB_INDEX_NUM
;
3925 context
->ustorm_st_context
.common
.clientId
= cli
;
3926 context
->ustorm_st_context
.common
.status_block_id
= BNX2X_DEF_SB_ID
;
3927 context
->ustorm_st_context
.common
.flags
=
3928 USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_STATISTICS
;
3929 context
->ustorm_st_context
.common
.statistics_counter_id
= cli
;
3930 context
->ustorm_st_context
.common
.mc_alignment_log_size
= 0;
3931 context
->ustorm_st_context
.common
.bd_buff_size
=
3932 cp
->l2_single_buf_size
;
3934 context
->ustorm_ag_context
.cdu_usage
=
3935 CDU_RSRVD_VALUE_TYPE_A(BNX2X_HW_CID(BNX2X_ISCSI_L2_CID
, func
),
3936 CDU_REGION_NUMBER_UCM_AG
,
3937 ETH_CONNECTION_TYPE
);
3939 rxcqe
+= BNX2X_MAX_RCQ_DESC_CNT
;
3940 val
= (u64
) (cp
->l2_ring_map
+ (2 * BCM_PAGE_SIZE
)) >> 32;
3941 rxcqe
->addr_hi
= cpu_to_le32(val
);
3943 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
3944 USTORM_CQE_PAGE_BASE_OFFSET(port
, cli
) + 4, val
);
3946 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
3947 USTORM_CQE_PAGE_NEXT_OFFSET(port
, cli
) + 4, val
);
3949 val
= (u64
) (cp
->l2_ring_map
+ (2 * BCM_PAGE_SIZE
)) & 0xffffffff;
3950 rxcqe
->addr_lo
= cpu_to_le32(val
);
3952 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
3953 USTORM_CQE_PAGE_BASE_OFFSET(port
, cli
), val
);
3955 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
3956 USTORM_CQE_PAGE_NEXT_OFFSET(port
, cli
), val
);
3958 /* client tstorm info */
3959 tstorm_client
.mtu
= cp
->l2_single_buf_size
- 14;
3960 tstorm_client
.config_flags
=
3961 (TSTORM_ETH_CLIENT_CONFIG_E1HOV_REM_ENABLE
|
3962 TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE
);
3963 tstorm_client
.statistics_counter_id
= cli
;
3965 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
3966 TSTORM_CLIENT_CONFIG_OFFSET(port
, cli
),
3967 ((u32
*)&tstorm_client
)[0]);
3968 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
3969 TSTORM_CLIENT_CONFIG_OFFSET(port
, cli
) + 4,
3970 ((u32
*)&tstorm_client
)[1]);
3972 /* reset tstorm per client statistics */
3973 val
= BAR_TSTRORM_INTMEM
+
3974 TSTORM_PER_COUNTER_ID_STATS_OFFSET(port
, cli
);
3975 for (i
= 0; i
< sizeof(struct tstorm_per_client_stats
) / 4; i
++)
3976 CNIC_WR(dev
, val
+ i
* 4, 0);
3978 /* reset ustorm per client statistics */
3979 val
= BAR_USTRORM_INTMEM
+
3980 USTORM_PER_COUNTER_ID_STATS_OFFSET(port
, cli
);
3981 for (i
= 0; i
< sizeof(struct ustorm_per_client_stats
) / 4; i
++)
3982 CNIC_WR(dev
, val
+ i
* 4, 0);
3985 &cp
->bnx2x_def_status_blk
->u_def_status_block
.index_values
[
3986 HC_INDEX_DEF_U_ETH_ISCSI_RX_CQ_CONS
];
3989 static void cnic_get_bnx2x_iscsi_info(struct cnic_dev
*dev
)
3991 struct cnic_local
*cp
= dev
->cnic_priv
;
3992 u32 base
, addr
, val
;
3993 int port
= CNIC_PORT(cp
);
3995 dev
->max_iscsi_conn
= 0;
3996 base
= CNIC_RD(dev
, MISC_REG_SHARED_MEM_ADDR
);
3997 if (base
< 0xa0000 || base
>= 0xc0000)
4000 val
= BNX2X_SHMEM_ADDR(base
,
4001 dev_info
.port_hw_config
[port
].iscsi_mac_upper
);
4003 dev
->mac_addr
[0] = (u8
) (val
>> 8);
4004 dev
->mac_addr
[1] = (u8
) val
;
4006 val
= BNX2X_SHMEM_ADDR(base
,
4007 dev_info
.port_hw_config
[port
].iscsi_mac_lower
);
4009 dev
->mac_addr
[2] = (u8
) (val
>> 24);
4010 dev
->mac_addr
[3] = (u8
) (val
>> 16);
4011 dev
->mac_addr
[4] = (u8
) (val
>> 8);
4012 dev
->mac_addr
[5] = (u8
) val
;
4014 addr
= BNX2X_SHMEM_ADDR(base
, validity_map
[port
]);
4015 val
= CNIC_RD(dev
, addr
);
4017 if (!(val
& SHR_MEM_VALIDITY_LIC_NO_KEY_IN_EFFECT
)) {
4020 addr
= BNX2X_SHMEM_ADDR(base
,
4021 drv_lic_key
[port
].max_iscsi_init_conn
);
4022 val16
= CNIC_RD16(dev
, addr
);
4026 dev
->max_iscsi_conn
= val16
;
4028 if (BNX2X_CHIP_IS_E1H(cp
->chip_id
)) {
4029 int func
= CNIC_FUNC(cp
);
4031 addr
= BNX2X_SHMEM_ADDR(base
,
4032 mf_cfg
.func_mf_config
[func
].e1hov_tag
);
4033 val
= CNIC_RD(dev
, addr
);
4034 val
&= FUNC_MF_CFG_E1HOV_TAG_MASK
;
4035 if (val
!= FUNC_MF_CFG_E1HOV_TAG_DEFAULT
) {
4036 addr
= BNX2X_SHMEM_ADDR(base
,
4037 mf_cfg
.func_mf_config
[func
].config
);
4038 val
= CNIC_RD(dev
, addr
);
4039 val
&= FUNC_MF_CFG_PROTOCOL_MASK
;
4040 if (val
!= FUNC_MF_CFG_PROTOCOL_ISCSI
)
4041 dev
->max_iscsi_conn
= 0;
4046 static int cnic_start_bnx2x_hw(struct cnic_dev
*dev
)
4048 struct cnic_local
*cp
= dev
->cnic_priv
;
4049 int func
= CNIC_FUNC(cp
), ret
, i
;
4050 int port
= CNIC_PORT(cp
);
4052 u8 sb_id
= cp
->status_blk_num
;
4054 ret
= cnic_init_id_tbl(&cp
->cid_tbl
, MAX_ISCSI_TBL_SZ
,
4055 BNX2X_ISCSI_START_CID
);
4060 cp
->kcq_io_addr
= BAR_CSTRORM_INTMEM
+
4061 CSTORM_ISCSI_EQ_PROD_OFFSET(func
, 0);
4062 cp
->kcq_prod_idx
= 0;
4064 cnic_get_bnx2x_iscsi_info(dev
);
4067 CNIC_WR16(dev
, cp
->kcq_io_addr
, MAX_KCQ_IDX
);
4068 CNIC_WR(dev
, BAR_CSTRORM_INTMEM
+
4069 CSTORM_ISCSI_EQ_CONS_OFFSET(func
, 0), 0);
4070 CNIC_WR(dev
, BAR_CSTRORM_INTMEM
+
4071 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(func
, 0),
4072 cp
->kcq_info
.pg_map_arr
[1] & 0xffffffff);
4073 CNIC_WR(dev
, BAR_CSTRORM_INTMEM
+
4074 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(func
, 0) + 4,
4075 (u64
) cp
->kcq_info
.pg_map_arr
[1] >> 32);
4076 CNIC_WR(dev
, BAR_CSTRORM_INTMEM
+
4077 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(func
, 0),
4078 cp
->kcq_info
.pg_map_arr
[0] & 0xffffffff);
4079 CNIC_WR(dev
, BAR_CSTRORM_INTMEM
+
4080 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(func
, 0) + 4,
4081 (u64
) cp
->kcq_info
.pg_map_arr
[0] >> 32);
4082 CNIC_WR8(dev
, BAR_CSTRORM_INTMEM
+
4083 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(func
, 0), 1);
4084 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+
4085 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(func
, 0), cp
->status_blk_num
);
4086 CNIC_WR8(dev
, BAR_CSTRORM_INTMEM
+
4087 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(func
, 0),
4088 HC_INDEX_C_ISCSI_EQ_CONS
);
4090 for (i
= 0; i
< cp
->conn_buf_info
.num_pages
; i
++) {
4091 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
4092 TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(func
, i
),
4093 cp
->conn_buf_info
.pgtbl
[2 * i
]);
4094 CNIC_WR(dev
, BAR_TSTRORM_INTMEM
+
4095 TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(func
, i
) + 4,
4096 cp
->conn_buf_info
.pgtbl
[(2 * i
) + 1]);
4099 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
4100 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(func
),
4101 cp
->gbl_buf_info
.pg_map_arr
[0] & 0xffffffff);
4102 CNIC_WR(dev
, BAR_USTRORM_INTMEM
+
4103 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(func
) + 4,
4104 (u64
) cp
->gbl_buf_info
.pg_map_arr
[0] >> 32);
4106 cnic_setup_bnx2x_context(dev
);
4108 eq_idx
= CNIC_RD16(dev
, BAR_CSTRORM_INTMEM
+
4109 CSTORM_SB_HOST_STATUS_BLOCK_C_OFFSET(port
, sb_id
) +
4110 offsetof(struct cstorm_status_block_c
,
4111 index_values
[HC_INDEX_C_ISCSI_EQ_CONS
]));
4113 printk(KERN_ERR PFX
"%s: EQ cons index %x != 0\n",
4114 dev
->netdev
->name
, eq_idx
);
4117 ret
= cnic_init_bnx2x_irq(dev
);
4121 cnic_init_bnx2x_tx_ring(dev
);
4122 cnic_init_bnx2x_rx_ring(dev
);
4127 static void cnic_init_rings(struct cnic_dev
*dev
)
4129 if (test_bit(CNIC_F_BNX2_CLASS
, &dev
->flags
)) {
4130 cnic_init_bnx2_tx_ring(dev
);
4131 cnic_init_bnx2_rx_ring(dev
);
4132 } else if (test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
4133 struct cnic_local
*cp
= dev
->cnic_priv
;
4134 u32 cli
= BNX2X_ISCSI_CL_ID(CNIC_E1HVN(cp
));
4135 union l5cm_specific_data l5_data
;
4136 struct ustorm_eth_rx_producers rx_prods
= {0};
4139 rx_prods
.bd_prod
= 0;
4140 rx_prods
.cqe_prod
= BNX2X_MAX_RCQ_DESC_CNT
;
4143 off
= BAR_USTRORM_INTMEM
+
4144 USTORM_RX_PRODS_OFFSET(CNIC_PORT(cp
), cli
);
4146 for (i
= 0; i
< sizeof(struct ustorm_eth_rx_producers
) / 4; i
++)
4147 CNIC_WR(dev
, off
+ i
* 4, ((u32
*) &rx_prods
)[i
]);
4149 cnic_init_bnx2x_tx_ring(dev
);
4150 cnic_init_bnx2x_rx_ring(dev
);
4152 l5_data
.phy_address
.lo
= cli
;
4153 l5_data
.phy_address
.hi
= 0;
4154 cnic_submit_kwqe_16(dev
, RAMROD_CMD_ID_ETH_CLIENT_SETUP
,
4155 BNX2X_ISCSI_L2_CID
, ETH_CONNECTION_TYPE
, &l5_data
);
4156 cnic_ring_ctl(dev
, BNX2X_ISCSI_L2_CID
, cli
, 1);
4160 static void cnic_shutdown_rings(struct cnic_dev
*dev
)
4162 if (test_bit(CNIC_F_BNX2_CLASS
, &dev
->flags
)) {
4163 cnic_shutdown_bnx2_rx_ring(dev
);
4164 } else if (test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
4165 struct cnic_local
*cp
= dev
->cnic_priv
;
4166 u32 cli
= BNX2X_ISCSI_CL_ID(CNIC_E1HVN(cp
));
4168 cnic_ring_ctl(dev
, BNX2X_ISCSI_L2_CID
, cli
, 0);
4172 static int cnic_register_netdev(struct cnic_dev
*dev
)
4174 struct cnic_local
*cp
= dev
->cnic_priv
;
4175 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
4181 if (ethdev
->drv_state
& CNIC_DRV_STATE_REGD
)
4184 err
= ethdev
->drv_register_cnic(dev
->netdev
, cp
->cnic_ops
, dev
);
4186 printk(KERN_ERR PFX
"%s: register_cnic failed\n",
4192 static void cnic_unregister_netdev(struct cnic_dev
*dev
)
4194 struct cnic_local
*cp
= dev
->cnic_priv
;
4195 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
4200 ethdev
->drv_unregister_cnic(dev
->netdev
);
4203 static int cnic_start_hw(struct cnic_dev
*dev
)
4205 struct cnic_local
*cp
= dev
->cnic_priv
;
4206 struct cnic_eth_dev
*ethdev
= cp
->ethdev
;
4209 if (test_bit(CNIC_F_CNIC_UP
, &dev
->flags
))
4212 dev
->regview
= ethdev
->io_base
;
4213 cp
->chip_id
= ethdev
->chip_id
;
4214 pci_dev_get(dev
->pcidev
);
4215 cp
->func
= PCI_FUNC(dev
->pcidev
->devfn
);
4216 cp
->status_blk
= ethdev
->irq_arr
[0].status_blk
;
4217 cp
->status_blk_num
= ethdev
->irq_arr
[0].status_blk_num
;
4219 err
= cp
->alloc_resc(dev
);
4221 printk(KERN_ERR PFX
"%s: allocate resource failure\n",
4226 err
= cp
->start_hw(dev
);
4230 err
= cnic_cm_open(dev
);
4234 set_bit(CNIC_F_CNIC_UP
, &dev
->flags
);
4236 cp
->enable_int(dev
);
4242 pci_dev_put(dev
->pcidev
);
4246 static void cnic_stop_bnx2_hw(struct cnic_dev
*dev
)
4248 cnic_disable_bnx2_int_sync(dev
);
4250 cnic_reg_wr_ind(dev
, BNX2_CP_SCRATCH
+ 0x20, 0);
4251 cnic_reg_wr_ind(dev
, BNX2_COM_SCRATCH
+ 0x20, 0);
4253 cnic_init_context(dev
, KWQ_CID
);
4254 cnic_init_context(dev
, KCQ_CID
);
4256 cnic_setup_5709_context(dev
, 0);
4259 cnic_free_resc(dev
);
4263 static void cnic_stop_bnx2x_hw(struct cnic_dev
*dev
)
4265 struct cnic_local
*cp
= dev
->cnic_priv
;
4266 u8 sb_id
= cp
->status_blk_num
;
4267 int port
= CNIC_PORT(cp
);
4270 CNIC_WR16(dev
, BAR_CSTRORM_INTMEM
+
4271 CSTORM_SB_HOST_STATUS_BLOCK_C_OFFSET(port
, sb_id
) +
4272 offsetof(struct cstorm_status_block_c
,
4273 index_values
[HC_INDEX_C_ISCSI_EQ_CONS
]),
4275 cnic_free_resc(dev
);
4278 static void cnic_stop_hw(struct cnic_dev
*dev
)
4280 if (test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)) {
4281 struct cnic_local
*cp
= dev
->cnic_priv
;
4283 clear_bit(CNIC_F_CNIC_UP
, &dev
->flags
);
4284 rcu_assign_pointer(cp
->ulp_ops
[CNIC_ULP_L4
], NULL
);
4286 cnic_cm_shutdown(dev
);
4288 pci_dev_put(dev
->pcidev
);
4292 static void cnic_free_dev(struct cnic_dev
*dev
)
4296 while ((atomic_read(&dev
->ref_count
) != 0) && i
< 10) {
4300 if (atomic_read(&dev
->ref_count
) != 0)
4301 printk(KERN_ERR PFX
"%s: Failed waiting for ref count to go"
4302 " to zero.\n", dev
->netdev
->name
);
4304 printk(KERN_INFO PFX
"Removed CNIC device: %s\n", dev
->netdev
->name
);
4305 dev_put(dev
->netdev
);
4309 static struct cnic_dev
*cnic_alloc_dev(struct net_device
*dev
,
4310 struct pci_dev
*pdev
)
4312 struct cnic_dev
*cdev
;
4313 struct cnic_local
*cp
;
4316 alloc_size
= sizeof(struct cnic_dev
) + sizeof(struct cnic_local
);
4318 cdev
= kzalloc(alloc_size
, GFP_KERNEL
);
4320 printk(KERN_ERR PFX
"%s: allocate dev struct failure\n",
4326 cdev
->cnic_priv
= (char *)cdev
+ sizeof(struct cnic_dev
);
4327 cdev
->register_device
= cnic_register_device
;
4328 cdev
->unregister_device
= cnic_unregister_device
;
4329 cdev
->iscsi_nl_msg_recv
= cnic_iscsi_nl_msg_recv
;
4331 cp
= cdev
->cnic_priv
;
4334 cp
->l2_single_buf_size
= 0x400;
4335 cp
->l2_rx_ring_size
= 3;
4337 spin_lock_init(&cp
->cnic_ulp_lock
);
4339 printk(KERN_INFO PFX
"Added CNIC device: %s\n", dev
->name
);
4344 static struct cnic_dev
*init_bnx2_cnic(struct net_device
*dev
)
4346 struct pci_dev
*pdev
;
4347 struct cnic_dev
*cdev
;
4348 struct cnic_local
*cp
;
4349 struct cnic_eth_dev
*ethdev
= NULL
;
4350 struct cnic_eth_dev
*(*probe
)(struct net_device
*) = NULL
;
4352 probe
= symbol_get(bnx2_cnic_probe
);
4354 ethdev
= (*probe
)(dev
);
4355 symbol_put(bnx2_cnic_probe
);
4360 pdev
= ethdev
->pdev
;
4366 if (pdev
->device
== PCI_DEVICE_ID_NX2_5709
||
4367 pdev
->device
== PCI_DEVICE_ID_NX2_5709S
) {
4370 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &rev
);
4378 cdev
= cnic_alloc_dev(dev
, pdev
);
4382 set_bit(CNIC_F_BNX2_CLASS
, &cdev
->flags
);
4383 cdev
->submit_kwqes
= cnic_submit_bnx2_kwqes
;
4385 cp
= cdev
->cnic_priv
;
4386 cp
->ethdev
= ethdev
;
4387 cdev
->pcidev
= pdev
;
4389 cp
->cnic_ops
= &cnic_bnx2_ops
;
4390 cp
->start_hw
= cnic_start_bnx2_hw
;
4391 cp
->stop_hw
= cnic_stop_bnx2_hw
;
4392 cp
->setup_pgtbl
= cnic_setup_page_tbl
;
4393 cp
->alloc_resc
= cnic_alloc_bnx2_resc
;
4394 cp
->free_resc
= cnic_free_resc
;
4395 cp
->start_cm
= cnic_cm_init_bnx2_hw
;
4396 cp
->stop_cm
= cnic_cm_stop_bnx2_hw
;
4397 cp
->enable_int
= cnic_enable_bnx2_int
;
4398 cp
->disable_int_sync
= cnic_disable_bnx2_int_sync
;
4399 cp
->close_conn
= cnic_close_bnx2_conn
;
4400 cp
->next_idx
= cnic_bnx2_next_idx
;
4401 cp
->hw_idx
= cnic_bnx2_hw_idx
;
4409 static struct cnic_dev
*init_bnx2x_cnic(struct net_device
*dev
)
4411 struct pci_dev
*pdev
;
4412 struct cnic_dev
*cdev
;
4413 struct cnic_local
*cp
;
4414 struct cnic_eth_dev
*ethdev
= NULL
;
4415 struct cnic_eth_dev
*(*probe
)(struct net_device
*) = NULL
;
4417 probe
= symbol_get(bnx2x_cnic_probe
);
4419 ethdev
= (*probe
)(dev
);
4420 symbol_put(bnx2x_cnic_probe
);
4425 pdev
= ethdev
->pdev
;
4430 cdev
= cnic_alloc_dev(dev
, pdev
);
4436 set_bit(CNIC_F_BNX2X_CLASS
, &cdev
->flags
);
4437 cdev
->submit_kwqes
= cnic_submit_bnx2x_kwqes
;
4439 cp
= cdev
->cnic_priv
;
4440 cp
->ethdev
= ethdev
;
4441 cdev
->pcidev
= pdev
;
4443 cp
->cnic_ops
= &cnic_bnx2x_ops
;
4444 cp
->start_hw
= cnic_start_bnx2x_hw
;
4445 cp
->stop_hw
= cnic_stop_bnx2x_hw
;
4446 cp
->setup_pgtbl
= cnic_setup_page_tbl_le
;
4447 cp
->alloc_resc
= cnic_alloc_bnx2x_resc
;
4448 cp
->free_resc
= cnic_free_resc
;
4449 cp
->start_cm
= cnic_cm_init_bnx2x_hw
;
4450 cp
->stop_cm
= cnic_cm_stop_bnx2x_hw
;
4451 cp
->enable_int
= cnic_enable_bnx2x_int
;
4452 cp
->disable_int_sync
= cnic_disable_bnx2x_int_sync
;
4453 cp
->ack_int
= cnic_ack_bnx2x_msix
;
4454 cp
->close_conn
= cnic_close_bnx2x_conn
;
4455 cp
->next_idx
= cnic_bnx2x_next_idx
;
4456 cp
->hw_idx
= cnic_bnx2x_hw_idx
;
4460 static struct cnic_dev
*is_cnic_dev(struct net_device
*dev
)
4462 struct ethtool_drvinfo drvinfo
;
4463 struct cnic_dev
*cdev
= NULL
;
4465 if (dev
->ethtool_ops
&& dev
->ethtool_ops
->get_drvinfo
) {
4466 memset(&drvinfo
, 0, sizeof(drvinfo
));
4467 dev
->ethtool_ops
->get_drvinfo(dev
, &drvinfo
);
4469 if (!strcmp(drvinfo
.driver
, "bnx2"))
4470 cdev
= init_bnx2_cnic(dev
);
4471 if (!strcmp(drvinfo
.driver
, "bnx2x"))
4472 cdev
= init_bnx2x_cnic(dev
);
4474 write_lock(&cnic_dev_lock
);
4475 list_add(&cdev
->list
, &cnic_dev_list
);
4476 write_unlock(&cnic_dev_lock
);
4483 * netdev event handler
4485 static int cnic_netdev_event(struct notifier_block
*this, unsigned long event
,
4488 struct net_device
*netdev
= ptr
;
4489 struct cnic_dev
*dev
;
4493 dev
= cnic_from_netdev(netdev
);
4495 if (!dev
&& (event
== NETDEV_REGISTER
|| event
== NETDEV_UP
)) {
4496 /* Check for the hot-plug device */
4497 dev
= is_cnic_dev(netdev
);
4504 struct cnic_local
*cp
= dev
->cnic_priv
;
4508 else if (event
== NETDEV_UNREGISTER
)
4511 if (event
== NETDEV_UP
) {
4512 if (cnic_register_netdev(dev
) != 0) {
4516 if (!cnic_start_hw(dev
))
4517 cnic_ulp_start(dev
);
4521 for (if_type
= 0; if_type
< MAX_CNIC_ULP_TYPE
; if_type
++) {
4522 struct cnic_ulp_ops
*ulp_ops
;
4525 ulp_ops
= rcu_dereference(cp
->ulp_ops
[if_type
]);
4526 if (!ulp_ops
|| !ulp_ops
->indicate_netevent
)
4529 ctx
= cp
->ulp_handle
[if_type
];
4531 ulp_ops
->indicate_netevent(ctx
, event
);
4535 if (event
== NETDEV_GOING_DOWN
) {
4538 cnic_unregister_netdev(dev
);
4539 } else if (event
== NETDEV_UNREGISTER
) {
4540 write_lock(&cnic_dev_lock
);
4541 list_del_init(&dev
->list
);
4542 write_unlock(&cnic_dev_lock
);
4554 static struct notifier_block cnic_netdev_notifier
= {
4555 .notifier_call
= cnic_netdev_event
4558 static void cnic_release(void)
4560 struct cnic_dev
*dev
;
4562 while (!list_empty(&cnic_dev_list
)) {
4563 dev
= list_entry(cnic_dev_list
.next
, struct cnic_dev
, list
);
4564 if (test_bit(CNIC_F_CNIC_UP
, &dev
->flags
)) {
4570 cnic_unregister_netdev(dev
);
4571 list_del_init(&dev
->list
);
4576 static int __init
cnic_init(void)
4580 printk(KERN_INFO
"%s", version
);
4582 rc
= register_netdevice_notifier(&cnic_netdev_notifier
);
4591 static void __exit
cnic_exit(void)
4593 unregister_netdevice_notifier(&cnic_netdev_notifier
);
4598 module_init(cnic_init
);
4599 module_exit(cnic_exit
);