2 * Copyright (C) 2003 - 2008 NetXen, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
26 * 3965 Freedom Circle, Fourth floor,
27 * Santa Clara, CA 95054
31 #include "netxen_nic_hw.h"
32 #include "netxen_nic.h"
33 #include "netxen_nic_phan_reg.h"
35 #define NXHAL_VERSION 1
38 netxen_api_lock(struct netxen_adapter
*adapter
)
40 u32 done
= 0, timeout
= 0;
43 /* Acquire PCIE HW semaphore5 */
44 netxen_nic_read_w0(adapter
,
45 NETXEN_PCIE_REG(PCIE_SEM5_LOCK
), &done
);
50 if (++timeout
>= NX_OS_CRB_RETRY_COUNT
) {
51 printk(KERN_ERR
"%s: lock timeout.\n", __func__
);
59 netxen_nic_write_w1(adapter
,
60 NETXEN_API_LOCK_ID
, NX_OS_API_LOCK_DRIVER
);
66 netxen_api_unlock(struct netxen_adapter
*adapter
)
70 /* Release PCIE HW semaphore5 */
71 netxen_nic_read_w0(adapter
,
72 NETXEN_PCIE_REG(PCIE_SEM5_UNLOCK
), &val
);
77 netxen_poll_rsp(struct netxen_adapter
*adapter
)
79 u32 rsp
= NX_CDRP_RSP_OK
;
83 /* give atleast 1ms for firmware to respond */
86 if (++timeout
> NX_OS_CRB_RETRY_COUNT
)
87 return NX_CDRP_RSP_TIMEOUT
;
89 netxen_nic_read_w1(adapter
, NX_CDRP_CRB_OFFSET
, &rsp
);
90 } while (!NX_CDRP_IS_RSP(rsp
));
96 netxen_issue_cmd(struct netxen_adapter
*adapter
,
97 u32 pci_fn
, u32 version
, u32 arg1
, u32 arg2
, u32 arg3
, u32 cmd
)
101 u32 rcode
= NX_RCODE_SUCCESS
;
103 signature
= NX_CDRP_SIGNATURE_MAKE(pci_fn
, version
);
105 /* Acquire semaphore before accessing CRB */
106 if (netxen_api_lock(adapter
))
107 return NX_RCODE_TIMEOUT
;
109 netxen_nic_write_w1(adapter
, NX_SIGN_CRB_OFFSET
, signature
);
111 netxen_nic_write_w1(adapter
, NX_ARG1_CRB_OFFSET
, arg1
);
113 netxen_nic_write_w1(adapter
, NX_ARG2_CRB_OFFSET
, arg2
);
115 netxen_nic_write_w1(adapter
, NX_ARG3_CRB_OFFSET
, arg3
);
117 netxen_nic_write_w1(adapter
, NX_CDRP_CRB_OFFSET
,
118 NX_CDRP_FORM_CMD(cmd
));
120 rsp
= netxen_poll_rsp(adapter
);
122 if (rsp
== NX_CDRP_RSP_TIMEOUT
) {
123 printk(KERN_ERR
"%s: card response timeout.\n",
124 netxen_nic_driver_name
);
126 rcode
= NX_RCODE_TIMEOUT
;
127 } else if (rsp
== NX_CDRP_RSP_FAIL
) {
128 netxen_nic_read_w1(adapter
, NX_ARG1_CRB_OFFSET
, &rcode
);
130 printk(KERN_ERR
"%s: failed card response code:0x%x\n",
131 netxen_nic_driver_name
, rcode
);
134 /* Release semaphore */
135 netxen_api_unlock(adapter
);
141 nx_fw_cmd_set_mtu(struct netxen_adapter
*adapter
, int mtu
)
143 u32 rcode
= NX_RCODE_SUCCESS
;
144 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
[0];
146 if (recv_ctx
->state
== NX_HOST_CTX_STATE_ACTIVE
)
147 rcode
= netxen_issue_cmd(adapter
,
148 adapter
->ahw
.pci_func
,
150 recv_ctx
->context_id
,
153 NX_CDRP_CMD_SET_MTU
);
155 if (rcode
!= NX_RCODE_SUCCESS
)
162 nx_fw_cmd_create_rx_ctx(struct netxen_adapter
*adapter
)
165 nx_hostrq_rx_ctx_t
*prq
;
166 nx_cardrsp_rx_ctx_t
*prsp
;
167 nx_hostrq_rds_ring_t
*prq_rds
;
168 nx_hostrq_sds_ring_t
*prq_sds
;
169 nx_cardrsp_rds_ring_t
*prsp_rds
;
170 nx_cardrsp_sds_ring_t
*prsp_sds
;
171 struct nx_host_rds_ring
*rds_ring
;
173 dma_addr_t hostrq_phys_addr
, cardrsp_phys_addr
;
176 int i
, nrds_rings
, nsds_rings
;
177 size_t rq_size
, rsp_size
;
182 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
[0];
184 /* only one sds ring for now */
185 nrds_rings
= adapter
->max_rds_rings
;
189 SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t
, nrds_rings
, nsds_rings
);
191 SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t
, nrds_rings
, nsds_rings
);
193 addr
= pci_alloc_consistent(adapter
->pdev
,
194 rq_size
, &hostrq_phys_addr
);
197 prq
= (nx_hostrq_rx_ctx_t
*)addr
;
199 addr
= pci_alloc_consistent(adapter
->pdev
,
200 rsp_size
, &cardrsp_phys_addr
);
205 prsp
= (nx_cardrsp_rx_ctx_t
*)addr
;
207 prq
->host_rsp_dma_addr
= cpu_to_le64(cardrsp_phys_addr
);
209 cap
= (NX_CAP0_LEGACY_CONTEXT
| NX_CAP0_LEGACY_MN
);
210 cap
|= (NX_CAP0_JUMBO_CONTIGUOUS
| NX_CAP0_LRO_CONTIGUOUS
);
212 prq
->capabilities
[0] = cpu_to_le32(cap
);
213 prq
->host_int_crb_mode
=
214 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED
);
215 prq
->host_rds_crb_mode
=
216 cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE
);
218 prq
->num_rds_rings
= cpu_to_le16(nrds_rings
);
219 prq
->num_sds_rings
= cpu_to_le16(nsds_rings
);
220 prq
->rds_ring_offset
= cpu_to_le32(0);
222 val
= le32_to_cpu(prq
->rds_ring_offset
) +
223 (sizeof(nx_hostrq_rds_ring_t
) * nrds_rings
);
224 prq
->sds_ring_offset
= cpu_to_le32(val
);
226 prq_rds
= (nx_hostrq_rds_ring_t
*)(prq
->data
+
227 le32_to_cpu(prq
->rds_ring_offset
));
229 for (i
= 0; i
< nrds_rings
; i
++) {
231 rds_ring
= &recv_ctx
->rds_rings
[i
];
233 prq_rds
[i
].host_phys_addr
= cpu_to_le64(rds_ring
->phys_addr
);
234 prq_rds
[i
].ring_size
= cpu_to_le32(rds_ring
->max_rx_desc_count
);
235 prq_rds
[i
].ring_kind
= cpu_to_le32(i
);
236 prq_rds
[i
].buff_size
= cpu_to_le64(rds_ring
->dma_size
);
239 prq_sds
= (nx_hostrq_sds_ring_t
*)(prq
->data
+
240 le32_to_cpu(prq
->sds_ring_offset
));
242 prq_sds
[0].host_phys_addr
=
243 cpu_to_le64(recv_ctx
->rcv_status_desc_phys_addr
);
244 prq_sds
[0].ring_size
= cpu_to_le32(adapter
->max_rx_desc_count
);
245 /* only one msix vector for now */
246 prq_sds
[0].msi_index
= cpu_to_le16(0);
248 phys_addr
= hostrq_phys_addr
;
249 err
= netxen_issue_cmd(adapter
,
250 adapter
->ahw
.pci_func
,
252 (u32
)(phys_addr
>> 32),
253 (u32
)(phys_addr
& 0xffffffff),
255 NX_CDRP_CMD_CREATE_RX_CTX
);
258 "Failed to create rx ctx in firmware%d\n", err
);
263 prsp_rds
= ((nx_cardrsp_rds_ring_t
*)
264 &prsp
->data
[le32_to_cpu(prsp
->rds_ring_offset
)]);
266 for (i
= 0; i
< le16_to_cpu(prsp
->num_rds_rings
); i
++) {
267 rds_ring
= &recv_ctx
->rds_rings
[i
];
269 reg
= le32_to_cpu(prsp_rds
[i
].host_producer_crb
);
270 rds_ring
->crb_rcv_producer
= NETXEN_NIC_REG(reg
- 0x200);
273 prsp_sds
= ((nx_cardrsp_sds_ring_t
*)
274 &prsp
->data
[le32_to_cpu(prsp
->sds_ring_offset
)]);
275 reg
= le32_to_cpu(prsp_sds
[0].host_consumer_crb
);
276 recv_ctx
->crb_sts_consumer
= NETXEN_NIC_REG(reg
- 0x200);
278 reg
= le32_to_cpu(prsp_sds
[0].interrupt_crb
);
279 adapter
->crb_intr_mask
= NETXEN_NIC_REG(reg
- 0x200);
281 recv_ctx
->state
= le32_to_cpu(prsp
->host_ctx_state
);
282 recv_ctx
->context_id
= le16_to_cpu(prsp
->context_id
);
283 recv_ctx
->virt_port
= prsp
->virt_port
;
286 pci_free_consistent(adapter
->pdev
, rsp_size
, prsp
, cardrsp_phys_addr
);
288 pci_free_consistent(adapter
->pdev
, rq_size
, prq
, hostrq_phys_addr
);
293 nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter
*adapter
)
295 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
[0];
297 if (netxen_issue_cmd(adapter
,
298 adapter
->ahw
.pci_func
,
300 recv_ctx
->context_id
,
301 NX_DESTROY_CTX_RESET
,
303 NX_CDRP_CMD_DESTROY_RX_CTX
)) {
306 "%s: Failed to destroy rx ctx in firmware\n",
307 netxen_nic_driver_name
);
312 nx_fw_cmd_create_tx_ctx(struct netxen_adapter
*adapter
)
314 nx_hostrq_tx_ctx_t
*prq
;
315 nx_hostrq_cds_ring_t
*prq_cds
;
316 nx_cardrsp_tx_ctx_t
*prsp
;
317 void *rq_addr
, *rsp_addr
;
318 size_t rq_size
, rsp_size
;
321 u64 offset
, phys_addr
;
322 dma_addr_t rq_phys_addr
, rsp_phys_addr
;
324 rq_size
= SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t
);
325 rq_addr
= pci_alloc_consistent(adapter
->pdev
,
326 rq_size
, &rq_phys_addr
);
330 rsp_size
= SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t
);
331 rsp_addr
= pci_alloc_consistent(adapter
->pdev
,
332 rsp_size
, &rsp_phys_addr
);
338 memset(rq_addr
, 0, rq_size
);
339 prq
= (nx_hostrq_tx_ctx_t
*)rq_addr
;
341 memset(rsp_addr
, 0, rsp_size
);
342 prsp
= (nx_cardrsp_tx_ctx_t
*)rsp_addr
;
344 prq
->host_rsp_dma_addr
= cpu_to_le64(rsp_phys_addr
);
346 temp
= (NX_CAP0_LEGACY_CONTEXT
| NX_CAP0_LEGACY_MN
| NX_CAP0_LSO
);
347 prq
->capabilities
[0] = cpu_to_le32(temp
);
349 prq
->host_int_crb_mode
=
350 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED
);
352 prq
->interrupt_ctl
= 0;
355 prq
->dummy_dma_addr
= cpu_to_le64(adapter
->dummy_dma
.phys_addr
);
357 offset
= adapter
->ctx_desc_phys_addr
+sizeof(struct netxen_ring_ctx
);
358 prq
->cmd_cons_dma_addr
= cpu_to_le64(offset
);
360 prq_cds
= &prq
->cds_ring
;
362 prq_cds
->host_phys_addr
=
363 cpu_to_le64(adapter
->ahw
.cmd_desc_phys_addr
);
365 prq_cds
->ring_size
= cpu_to_le32(adapter
->max_tx_desc_count
);
367 phys_addr
= rq_phys_addr
;
368 err
= netxen_issue_cmd(adapter
,
369 adapter
->ahw
.pci_func
,
371 (u32
)(phys_addr
>> 32),
372 ((u32
)phys_addr
& 0xffffffff),
374 NX_CDRP_CMD_CREATE_TX_CTX
);
376 if (err
== NX_RCODE_SUCCESS
) {
377 temp
= le32_to_cpu(prsp
->cds_ring
.host_producer_crb
);
378 adapter
->crb_addr_cmd_producer
=
379 NETXEN_NIC_REG(temp
- 0x200);
382 le32_to_cpu(prsp
->host_ctx_state
);
384 adapter
->tx_context_id
=
385 le16_to_cpu(prsp
->context_id
);
388 "Failed to create tx ctx in firmware%d\n", err
);
392 pci_free_consistent(adapter
->pdev
, rsp_size
, rsp_addr
, rsp_phys_addr
);
395 pci_free_consistent(adapter
->pdev
, rq_size
, rq_addr
, rq_phys_addr
);
401 nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter
*adapter
)
403 if (netxen_issue_cmd(adapter
,
404 adapter
->ahw
.pci_func
,
406 adapter
->tx_context_id
,
407 NX_DESTROY_CTX_RESET
,
409 NX_CDRP_CMD_DESTROY_TX_CTX
)) {
412 "%s: Failed to destroy tx ctx in firmware\n",
413 netxen_nic_driver_name
);
417 static u64 ctx_addr_sig_regs
[][3] = {
418 {NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},
419 {NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},
420 {NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},
421 {NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}
424 #define CRB_CTX_ADDR_REG_LO(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][0])
425 #define CRB_CTX_ADDR_REG_HI(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][2])
426 #define CRB_CTX_SIGNATURE_REG(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][1])
428 #define lower32(x) ((u32)((x) & 0xffffffff))
429 #define upper32(x) ((u32)(((u64)(x) >> 32) & 0xffffffff))
431 static struct netxen_recv_crb recv_crb_registers
[] = {
434 /* crb_rcv_producer: */
436 NETXEN_NIC_REG(0x100),
438 NETXEN_NIC_REG(0x110),
440 NETXEN_NIC_REG(0x120)
442 /* crb_sts_consumer: */
443 NETXEN_NIC_REG(0x138),
447 /* crb_rcv_producer: */
449 NETXEN_NIC_REG(0x144),
451 NETXEN_NIC_REG(0x154),
453 NETXEN_NIC_REG(0x164)
455 /* crb_sts_consumer: */
456 NETXEN_NIC_REG(0x17c),
460 /* crb_rcv_producer: */
462 NETXEN_NIC_REG(0x1d8),
464 NETXEN_NIC_REG(0x1f8),
466 NETXEN_NIC_REG(0x208)
468 /* crb_sts_consumer: */
469 NETXEN_NIC_REG(0x220),
473 /* crb_rcv_producer: */
475 NETXEN_NIC_REG(0x22c),
477 NETXEN_NIC_REG(0x23c),
479 NETXEN_NIC_REG(0x24c)
481 /* crb_sts_consumer: */
482 NETXEN_NIC_REG(0x264),
487 netxen_init_old_ctx(struct netxen_adapter
*adapter
)
489 struct netxen_recv_context
*recv_ctx
;
490 struct nx_host_rds_ring
*rds_ring
;
492 int func_id
= adapter
->portnum
;
494 adapter
->ctx_desc
->cmd_ring_addr
=
495 cpu_to_le64(adapter
->ahw
.cmd_desc_phys_addr
);
496 adapter
->ctx_desc
->cmd_ring_size
=
497 cpu_to_le32(adapter
->max_tx_desc_count
);
499 for (ctx
= 0; ctx
< MAX_RCV_CTX
; ++ctx
) {
500 recv_ctx
= &adapter
->recv_ctx
[ctx
];
502 for (ring
= 0; ring
< adapter
->max_rds_rings
; ring
++) {
503 rds_ring
= &recv_ctx
->rds_rings
[ring
];
505 adapter
->ctx_desc
->rcv_ctx
[ring
].rcv_ring_addr
=
506 cpu_to_le64(rds_ring
->phys_addr
);
507 adapter
->ctx_desc
->rcv_ctx
[ring
].rcv_ring_size
=
508 cpu_to_le32(rds_ring
->max_rx_desc_count
);
510 adapter
->ctx_desc
->sts_ring_addr
=
511 cpu_to_le64(recv_ctx
->rcv_status_desc_phys_addr
);
512 adapter
->ctx_desc
->sts_ring_size
=
513 cpu_to_le32(adapter
->max_rx_desc_count
);
516 adapter
->pci_write_normalize(adapter
, CRB_CTX_ADDR_REG_LO(func_id
),
517 lower32(adapter
->ctx_desc_phys_addr
));
518 adapter
->pci_write_normalize(adapter
, CRB_CTX_ADDR_REG_HI(func_id
),
519 upper32(adapter
->ctx_desc_phys_addr
));
520 adapter
->pci_write_normalize(adapter
, CRB_CTX_SIGNATURE_REG(func_id
),
521 NETXEN_CTX_SIGNATURE
| func_id
);
525 static uint32_t sw_int_mask
[4] = {
526 CRB_SW_INT_MASK_0
, CRB_SW_INT_MASK_1
,
527 CRB_SW_INT_MASK_2
, CRB_SW_INT_MASK_3
530 int netxen_alloc_hw_resources(struct netxen_adapter
*adapter
)
532 struct netxen_hardware_context
*hw
= &adapter
->ahw
;
537 struct netxen_recv_context
*recv_ctx
;
538 struct nx_host_rds_ring
*rds_ring
;
540 err
= netxen_receive_peg_ready(adapter
);
542 printk(KERN_ERR
"Rcv Peg initialization not complete:%x.\n",
547 addr
= pci_alloc_consistent(adapter
->pdev
,
548 sizeof(struct netxen_ring_ctx
) + sizeof(uint32_t),
549 &adapter
->ctx_desc_phys_addr
);
552 DPRINTK(ERR
, "failed to allocate hw context\n");
555 memset(addr
, 0, sizeof(struct netxen_ring_ctx
));
556 adapter
->ctx_desc
= (struct netxen_ring_ctx
*)addr
;
557 adapter
->ctx_desc
->ctx_id
= cpu_to_le32(adapter
->portnum
);
558 adapter
->ctx_desc
->cmd_consumer_offset
=
559 cpu_to_le64(adapter
->ctx_desc_phys_addr
+
560 sizeof(struct netxen_ring_ctx
));
561 adapter
->cmd_consumer
=
562 (__le32
*)(((char *)addr
) + sizeof(struct netxen_ring_ctx
));
565 addr
= pci_alloc_consistent(adapter
->pdev
,
566 sizeof(struct cmd_desc_type0
) *
567 adapter
->max_tx_desc_count
,
568 &hw
->cmd_desc_phys_addr
);
571 printk(KERN_ERR
"%s failed to allocate tx desc ring\n",
572 netxen_nic_driver_name
);
576 hw
->cmd_desc_head
= (struct cmd_desc_type0
*)addr
;
578 for (ctx
= 0; ctx
< MAX_RCV_CTX
; ++ctx
) {
579 recv_ctx
= &adapter
->recv_ctx
[ctx
];
581 for (ring
= 0; ring
< adapter
->max_rds_rings
; ring
++) {
583 rds_ring
= &recv_ctx
->rds_rings
[ring
];
584 addr
= pci_alloc_consistent(adapter
->pdev
,
586 &rds_ring
->phys_addr
);
588 printk(KERN_ERR
"%s failed to allocate rx "
590 netxen_nic_driver_name
, ring
);
594 rds_ring
->desc_head
= (struct rcv_desc
*)addr
;
596 if (adapter
->fw_major
< 4)
597 rds_ring
->crb_rcv_producer
=
598 recv_crb_registers
[adapter
->portnum
].
599 crb_rcv_producer
[ring
];
602 /* status desc ring */
603 addr
= pci_alloc_consistent(adapter
->pdev
,
604 STATUS_DESC_RINGSIZE
,
605 &recv_ctx
->rcv_status_desc_phys_addr
);
607 printk(KERN_ERR
"%s failed to allocate sts desc ring\n",
608 netxen_nic_driver_name
);
612 recv_ctx
->rcv_status_desc_head
= (struct status_desc
*)addr
;
614 if (adapter
->fw_major
< 4)
615 recv_ctx
->crb_sts_consumer
=
616 recv_crb_registers
[adapter
->portnum
].
620 if (adapter
->fw_major
>= 4) {
621 adapter
->intr_scheme
= INTR_SCHEME_PERPORT
;
622 adapter
->msi_mode
= MSI_MODE_MULTIFUNC
;
624 err
= nx_fw_cmd_create_rx_ctx(adapter
);
627 err
= nx_fw_cmd_create_tx_ctx(adapter
);
632 adapter
->intr_scheme
= adapter
->pci_read_normalize(adapter
,
633 CRB_NIC_CAPABILITIES_FW
);
634 adapter
->msi_mode
= adapter
->pci_read_normalize(adapter
,
635 CRB_NIC_MSI_MODE_FW
);
636 adapter
->crb_intr_mask
= sw_int_mask
[adapter
->portnum
];
638 err
= netxen_init_old_ctx(adapter
);
640 netxen_free_hw_resources(adapter
);
649 netxen_free_hw_resources(adapter
);
653 void netxen_free_hw_resources(struct netxen_adapter
*adapter
)
655 struct netxen_recv_context
*recv_ctx
;
656 struct nx_host_rds_ring
*rds_ring
;
659 if (adapter
->fw_major
>= 4) {
660 nx_fw_cmd_destroy_tx_ctx(adapter
);
661 nx_fw_cmd_destroy_rx_ctx(adapter
);
664 if (adapter
->ctx_desc
!= NULL
) {
665 pci_free_consistent(adapter
->pdev
,
666 sizeof(struct netxen_ring_ctx
) +
669 adapter
->ctx_desc_phys_addr
);
670 adapter
->ctx_desc
= NULL
;
673 if (adapter
->ahw
.cmd_desc_head
!= NULL
) {
674 pci_free_consistent(adapter
->pdev
,
675 sizeof(struct cmd_desc_type0
) *
676 adapter
->max_tx_desc_count
,
677 adapter
->ahw
.cmd_desc_head
,
678 adapter
->ahw
.cmd_desc_phys_addr
);
679 adapter
->ahw
.cmd_desc_head
= NULL
;
682 for (ctx
= 0; ctx
< MAX_RCV_CTX
; ++ctx
) {
683 recv_ctx
= &adapter
->recv_ctx
[ctx
];
684 for (ring
= 0; ring
< adapter
->max_rds_rings
; ring
++) {
685 rds_ring
= &recv_ctx
->rds_rings
[ring
];
687 if (rds_ring
->desc_head
!= NULL
) {
688 pci_free_consistent(adapter
->pdev
,
691 rds_ring
->phys_addr
);
692 rds_ring
->desc_head
= NULL
;
696 if (recv_ctx
->rcv_status_desc_head
!= NULL
) {
697 pci_free_consistent(adapter
->pdev
,
698 STATUS_DESC_RINGSIZE
,
699 recv_ctx
->rcv_status_desc_head
,
700 recv_ctx
->rcv_status_desc_phys_addr
);
701 recv_ctx
->rcv_status_desc_head
= NULL
;