1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 /* QLogic qed NIC Driver
3 * Copyright (c) 2015-2017 QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
5 */
6
7 #include <linux/types.h>
8 #include <asm/byteorder.h>
9 #include <asm/param.h>
10 #include <linux/delay.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/interrupt.h>
13 #include <linux/kernel.h>
14 #include <linux/log2.h>
15 #include <linux/module.h>
16 #include <linux/pci.h>
17 #include <linux/slab.h>
18 #include <linux/stddef.h>
19 #include <linux/string.h>
20 #include <linux/workqueue.h>
21 #include <linux/errno.h>
22 #include <linux/list.h>
23 #include <linux/spinlock.h>
24 #define __PREVENT_DUMP_MEM_ARR__
25 #define __PREVENT_PXP_GLOBAL_WIN__
26 #include "qed.h"
27 #include "qed_cxt.h"
28 #include "qed_dev_api.h"
29 #include "qed_fcoe.h"
30 #include "qed_hsi.h"
31 #include "qed_hw.h"
32 #include "qed_int.h"
33 #include "qed_iro_hsi.h"
34 #include "qed_ll2.h"
35 #include "qed_mcp.h"
36 #include "qed_reg_addr.h"
37 #include "qed_sp.h"
38 #include "qed_sriov.h"
39 #include <linux/qed/qed_fcoe_if.h>
40
41 struct qed_fcoe_conn {
42 struct list_head list_entry;
43 bool free_on_delete;
44
45 u16 conn_id;
46 u32 icid;
47 u32 fw_cid;
48 u8 layer_code;
49
50 dma_addr_t sq_pbl_addr;
51 dma_addr_t sq_curr_page_addr;
52 dma_addr_t sq_next_page_addr;
53 dma_addr_t xferq_pbl_addr;
54 void *xferq_pbl_addr_virt_addr;
55 dma_addr_t xferq_addr[4];
56 void *xferq_addr_virt_addr[4];
57 dma_addr_t confq_pbl_addr;
58 void *confq_pbl_addr_virt_addr;
59 dma_addr_t confq_addr[2];
60 void *confq_addr_virt_addr[2];
61
62 dma_addr_t terminate_params;
63
64 u16 dst_mac_addr_lo;
65 u16 dst_mac_addr_mid;
66 u16 dst_mac_addr_hi;
67 u16 src_mac_addr_lo;
68 u16 src_mac_addr_mid;
69 u16 src_mac_addr_hi;
70
71 u16 tx_max_fc_pay_len;
72 u16 e_d_tov_timer_val;
73 u16 rec_tov_timer_val;
74 u16 rx_max_fc_pay_len;
75 u16 vlan_tag;
76 u16 physical_q0;
77
78 struct fc_addr_nw s_id;
79 u8 max_conc_seqs_c3;
80 struct fc_addr_nw d_id;
81 u8 flags;
82 u8 def_q_idx;
83 };
84
85 static int
qed_sp_fcoe_func_start(struct qed_hwfn * p_hwfn,enum spq_mode comp_mode,struct qed_spq_comp_cb * p_comp_addr)86 qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
87 enum spq_mode comp_mode,
88 struct qed_spq_comp_cb *p_comp_addr)
89 {
90 struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
91 struct fcoe_init_ramrod_params *p_ramrod = NULL;
92 struct fcoe_init_func_ramrod_data *p_data;
93 struct fcoe_conn_context *p_cxt = NULL;
94 struct qed_spq_entry *p_ent = NULL;
95 struct qed_sp_init_data init_data;
96 struct qed_cxt_info cxt_info;
97 u32 dummy_cid;
98 int rc = 0;
99 __le16 tmp;
100 u8 i;
101
102 /* Get SPQ entry */
103 memset(&init_data, 0, sizeof(init_data));
104 init_data.cid = qed_spq_get_cid(p_hwfn);
105 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
106 init_data.comp_mode = comp_mode;
107 init_data.p_comp_data = p_comp_addr;
108
109 rc = qed_sp_init_request(p_hwfn, &p_ent,
110 FCOE_RAMROD_CMD_ID_INIT_FUNC,
111 PROTOCOLID_FCOE, &init_data);
112 if (rc)
113 return rc;
114
115 p_ramrod = &p_ent->ramrod.fcoe_init;
116 p_data = &p_ramrod->init_ramrod_data;
117 fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
118
119 /* Sanity */
120 if (fcoe_pf_params->num_cqs > p_hwfn->hw_info.feat_num[QED_FCOE_CQ]) {
121 DP_ERR(p_hwfn,
122 "Cannot satisfy CQ amount. CQs requested %d, CQs available %d. Aborting function start\n",
123 fcoe_pf_params->num_cqs,
124 p_hwfn->hw_info.feat_num[QED_FCOE_CQ]);
125 rc = -EINVAL;
126 goto err;
127 }
128
129 p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
130 tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
131 p_data->sq_num_pages_in_pbl = tmp;
132
133 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
134 if (rc)
135 goto err;
136
137 cxt_info.iid = dummy_cid;
138 rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
139 if (rc) {
140 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
141 dummy_cid);
142 goto err;
143 }
144 p_cxt = cxt_info.p_cxt;
145 memset(p_cxt, 0, sizeof(*p_cxt));
146
147 SET_FIELD(p_cxt->tstorm_ag_context.flags3,
148 TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
149
150 fcoe_pf_params->dummy_icid = (u16)dummy_cid;
151
152 tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
153 p_data->func_params.num_tasks = tmp;
154 p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
155 p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
156
157 DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
158 fcoe_pf_params->glbl_q_params_addr);
159
160 tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
161 p_data->q_params.cq_num_entries = tmp;
162
163 tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
164 p_data->q_params.cmdq_num_entries = tmp;
165
166 p_data->q_params.num_queues = fcoe_pf_params->num_cqs;
167
168 tmp = (__force __le16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
169 p_data->q_params.queue_relative_offset = (__force u8)tmp;
170
171 for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
172 tmp = cpu_to_le16(qed_get_igu_sb_id(p_hwfn, i));
173 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
174 }
175
176 p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
177 p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
178
179 p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
180
181 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
182 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
183 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
184 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
185 tmp = cpu_to_le16(fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ]);
186 p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = tmp;
187 tmp = cpu_to_le16(fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ]);
188 p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = tmp;
189
190 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
191 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
192 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
193 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
194 tmp = cpu_to_le16(fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]);
195 p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = tmp;
196 tmp = cpu_to_le16(fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]);
197 p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = tmp;
198 tmp = cpu_to_le16(fcoe_pf_params->rq_buffer_size);
199 p_data->q_params.rq_buffer_size = tmp;
200
201 if (fcoe_pf_params->is_target) {
202 SET_FIELD(p_data->q_params.q_validity,
203 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
204 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
205 SET_FIELD(p_data->q_params.q_validity,
206 SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
207 SET_FIELD(p_data->q_params.q_validity,
208 SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
209 } else {
210 SET_FIELD(p_data->q_params.q_validity,
211 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
212 }
213
214 rc = qed_spq_post(p_hwfn, p_ent, NULL);
215
216 return rc;
217
218 err:
219 qed_sp_destroy_request(p_hwfn, p_ent);
220 return rc;
221 }
222
223 static int
qed_sp_fcoe_conn_offload(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn * p_conn,enum spq_mode comp_mode,struct qed_spq_comp_cb * p_comp_addr)224 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
225 struct qed_fcoe_conn *p_conn,
226 enum spq_mode comp_mode,
227 struct qed_spq_comp_cb *p_comp_addr)
228 {
229 struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
230 struct fcoe_conn_offload_ramrod_data *p_data;
231 struct qed_spq_entry *p_ent = NULL;
232 struct qed_sp_init_data init_data;
233 u16 physical_q0;
234 __le16 tmp;
235 int rc;
236
237 /* Get SPQ entry */
238 memset(&init_data, 0, sizeof(init_data));
239 init_data.cid = p_conn->icid;
240 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
241 init_data.comp_mode = comp_mode;
242 init_data.p_comp_data = p_comp_addr;
243
244 rc = qed_sp_init_request(p_hwfn, &p_ent,
245 FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
246 PROTOCOLID_FCOE, &init_data);
247 if (rc)
248 return rc;
249
250 p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
251 p_data = &p_ramrod->offload_ramrod_data;
252
253 /* Transmission PQ is the first of the PF */
254 physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
255 p_conn->physical_q0 = physical_q0;
256 p_data->physical_q0 = cpu_to_le16(physical_q0);
257
258 p_data->conn_id = cpu_to_le16(p_conn->conn_id);
259 DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
260 DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
261 DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
262 DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
263 DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
264 DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
265
266 DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
267 DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
268 DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
269
270 p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
271 p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
272 p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
273 p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
274 p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
275 p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
276
277 tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
278 p_data->tx_max_fc_pay_len = tmp;
279 tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
280 p_data->e_d_tov_timer_val = tmp;
281 tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
282 p_data->rec_rr_tov_timer_val = tmp;
283 tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
284 p_data->rx_max_fc_pay_len = tmp;
285
286 p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
287 p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
288 p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
289 p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
290 p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
291 p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
292 p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
293 p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
294 p_data->flags = p_conn->flags;
295 if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
296 SET_FIELD(p_data->flags,
297 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_SINGLE_VLAN, 1);
298 p_data->def_q_idx = p_conn->def_q_idx;
299
300 return qed_spq_post(p_hwfn, p_ent, NULL);
301 }
302
303 static int
qed_sp_fcoe_conn_destroy(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn * p_conn,enum spq_mode comp_mode,struct qed_spq_comp_cb * p_comp_addr)304 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
305 struct qed_fcoe_conn *p_conn,
306 enum spq_mode comp_mode,
307 struct qed_spq_comp_cb *p_comp_addr)
308 {
309 struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
310 struct qed_spq_entry *p_ent = NULL;
311 struct qed_sp_init_data init_data;
312 int rc = 0;
313
314 /* Get SPQ entry */
315 memset(&init_data, 0, sizeof(init_data));
316 init_data.cid = p_conn->icid;
317 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
318 init_data.comp_mode = comp_mode;
319 init_data.p_comp_data = p_comp_addr;
320
321 rc = qed_sp_init_request(p_hwfn, &p_ent,
322 FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
323 PROTOCOLID_FCOE, &init_data);
324 if (rc)
325 return rc;
326
327 p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
328 DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
329 p_conn->terminate_params);
330
331 return qed_spq_post(p_hwfn, p_ent, NULL);
332 }
333
334 static int
qed_sp_fcoe_func_stop(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum spq_mode comp_mode,struct qed_spq_comp_cb * p_comp_addr)335 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
336 struct qed_ptt *p_ptt,
337 enum spq_mode comp_mode,
338 struct qed_spq_comp_cb *p_comp_addr)
339 {
340 struct qed_spq_entry *p_ent = NULL;
341 struct qed_sp_init_data init_data;
342 u32 active_segs = 0;
343 int rc = 0;
344
345 /* Get SPQ entry */
346 memset(&init_data, 0, sizeof(init_data));
347 init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
348 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
349 init_data.comp_mode = comp_mode;
350 init_data.p_comp_data = p_comp_addr;
351
352 rc = qed_sp_init_request(p_hwfn, &p_ent,
353 FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
354 PROTOCOLID_FCOE, &init_data);
355 if (rc)
356 return rc;
357
358 active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
359 active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
360 qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
361
362 return qed_spq_post(p_hwfn, p_ent, NULL);
363 }
364
365 static int
qed_fcoe_allocate_connection(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn ** p_out_conn)366 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
367 struct qed_fcoe_conn **p_out_conn)
368 {
369 struct qed_fcoe_conn *p_conn = NULL;
370 void *p_addr;
371 u32 i;
372
373 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
374 if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
375 p_conn =
376 list_first_entry(&p_hwfn->p_fcoe_info->free_list,
377 struct qed_fcoe_conn, list_entry);
378 if (p_conn) {
379 list_del(&p_conn->list_entry);
380 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
381 *p_out_conn = p_conn;
382 return 0;
383 }
384 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
385
386 p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
387 if (!p_conn)
388 return -ENOMEM;
389
390 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
391 QED_CHAIN_PAGE_SIZE,
392 &p_conn->xferq_pbl_addr, GFP_KERNEL);
393 if (!p_addr)
394 goto nomem_pbl_xferq;
395 p_conn->xferq_pbl_addr_virt_addr = p_addr;
396
397 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
398 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
399 QED_CHAIN_PAGE_SIZE,
400 &p_conn->xferq_addr[i], GFP_KERNEL);
401 if (!p_addr)
402 goto nomem_xferq;
403 p_conn->xferq_addr_virt_addr[i] = p_addr;
404
405 p_addr = p_conn->xferq_pbl_addr_virt_addr;
406 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
407 }
408
409 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
410 QED_CHAIN_PAGE_SIZE,
411 &p_conn->confq_pbl_addr, GFP_KERNEL);
412 if (!p_addr)
413 goto nomem_xferq;
414 p_conn->confq_pbl_addr_virt_addr = p_addr;
415
416 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
417 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
418 QED_CHAIN_PAGE_SIZE,
419 &p_conn->confq_addr[i], GFP_KERNEL);
420 if (!p_addr)
421 goto nomem_confq;
422 p_conn->confq_addr_virt_addr[i] = p_addr;
423
424 p_addr = p_conn->confq_pbl_addr_virt_addr;
425 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
426 }
427
428 p_conn->free_on_delete = true;
429 *p_out_conn = p_conn;
430 return 0;
431
432 nomem_confq:
433 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
434 QED_CHAIN_PAGE_SIZE,
435 p_conn->confq_pbl_addr_virt_addr,
436 p_conn->confq_pbl_addr);
437 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
438 if (p_conn->confq_addr_virt_addr[i])
439 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
440 QED_CHAIN_PAGE_SIZE,
441 p_conn->confq_addr_virt_addr[i],
442 p_conn->confq_addr[i]);
443 nomem_xferq:
444 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
445 QED_CHAIN_PAGE_SIZE,
446 p_conn->xferq_pbl_addr_virt_addr,
447 p_conn->xferq_pbl_addr);
448 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
449 if (p_conn->xferq_addr_virt_addr[i])
450 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
451 QED_CHAIN_PAGE_SIZE,
452 p_conn->xferq_addr_virt_addr[i],
453 p_conn->xferq_addr[i]);
454 nomem_pbl_xferq:
455 kfree(p_conn);
456 return -ENOMEM;
457 }
458
qed_fcoe_free_connection(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn * p_conn)459 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
460 struct qed_fcoe_conn *p_conn)
461 {
462 u32 i;
463
464 if (!p_conn)
465 return;
466
467 if (p_conn->confq_pbl_addr_virt_addr)
468 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
469 QED_CHAIN_PAGE_SIZE,
470 p_conn->confq_pbl_addr_virt_addr,
471 p_conn->confq_pbl_addr);
472
473 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
474 if (!p_conn->confq_addr_virt_addr[i])
475 continue;
476 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
477 QED_CHAIN_PAGE_SIZE,
478 p_conn->confq_addr_virt_addr[i],
479 p_conn->confq_addr[i]);
480 }
481
482 if (p_conn->xferq_pbl_addr_virt_addr)
483 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
484 QED_CHAIN_PAGE_SIZE,
485 p_conn->xferq_pbl_addr_virt_addr,
486 p_conn->xferq_pbl_addr);
487
488 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
489 if (!p_conn->xferq_addr_virt_addr[i])
490 continue;
491 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
492 QED_CHAIN_PAGE_SIZE,
493 p_conn->xferq_addr_virt_addr[i],
494 p_conn->xferq_addr[i]);
495 }
496 kfree(p_conn);
497 }
498
qed_fcoe_get_db_addr(struct qed_hwfn * p_hwfn,u32 cid)499 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
500 {
501 return (u8 __iomem *)p_hwfn->doorbells +
502 qed_db_addr(cid, DQ_DEMS_LEGACY);
503 }
504
qed_fcoe_get_primary_bdq_prod(struct qed_hwfn * p_hwfn,u8 bdq_id)505 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
506 u8 bdq_id)
507 {
508 if (RESC_NUM(p_hwfn, QED_BDQ)) {
509 return (u8 __iomem *)p_hwfn->regview +
510 GET_GTT_BDQ_REG_ADDR(GTT_BAR0_MAP_REG_MSDM_RAM,
511 MSTORM_SCSI_BDQ_EXT_PROD,
512 RESC_START(p_hwfn, QED_BDQ), bdq_id);
513 } else {
514 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
515 return NULL;
516 }
517 }
518
qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn * p_hwfn,u8 bdq_id)519 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
520 u8 bdq_id)
521 {
522 if (RESC_NUM(p_hwfn, QED_BDQ)) {
523 return (u8 __iomem *)p_hwfn->regview +
524 GET_GTT_BDQ_REG_ADDR(GTT_BAR0_MAP_REG_TSDM_RAM,
525 TSTORM_SCSI_BDQ_EXT_PROD,
526 RESC_START(p_hwfn, QED_BDQ), bdq_id);
527 } else {
528 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
529 return NULL;
530 }
531 }
532
qed_fcoe_alloc(struct qed_hwfn * p_hwfn)533 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
534 {
535 struct qed_fcoe_info *p_fcoe_info;
536
537 /* Allocate LL2's set struct */
538 p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
539 if (!p_fcoe_info) {
540 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
541 return -ENOMEM;
542 }
543 INIT_LIST_HEAD(&p_fcoe_info->free_list);
544
545 p_hwfn->p_fcoe_info = p_fcoe_info;
546 return 0;
547 }
548
qed_fcoe_setup(struct qed_hwfn * p_hwfn)549 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
550 {
551 struct fcoe_task_context *p_task_ctx = NULL;
552 u32 i, lc;
553 int rc;
554
555 spin_lock_init(&p_hwfn->p_fcoe_info->lock);
556 for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
557 rc = qed_cxt_get_task_ctx(p_hwfn, i,
558 QED_CTX_WORKING_MEM,
559 (void **)&p_task_ctx);
560 if (rc)
561 continue;
562
563 memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
564
565 lc = 0;
566 SET_FIELD(lc, TIMERS_CONTEXT_VALIDLC0, 1);
567 p_task_ctx->timer_context.logical_client_0 = cpu_to_le32(lc);
568
569 lc = 0;
570 SET_FIELD(lc, TIMERS_CONTEXT_VALIDLC1, 1);
571 p_task_ctx->timer_context.logical_client_1 = cpu_to_le32(lc);
572
573 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
574 TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
575 }
576 }
577
qed_fcoe_free(struct qed_hwfn * p_hwfn)578 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
579 {
580 struct qed_fcoe_conn *p_conn = NULL;
581
582 if (!p_hwfn->p_fcoe_info)
583 return;
584
585 while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
586 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
587 struct qed_fcoe_conn, list_entry);
588 if (!p_conn)
589 break;
590 list_del(&p_conn->list_entry);
591 qed_fcoe_free_connection(p_hwfn, p_conn);
592 }
593
594 kfree(p_hwfn->p_fcoe_info);
595 p_hwfn->p_fcoe_info = NULL;
596 }
597
598 static int
qed_fcoe_acquire_connection(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn * p_in_conn,struct qed_fcoe_conn ** p_out_conn)599 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
600 struct qed_fcoe_conn *p_in_conn,
601 struct qed_fcoe_conn **p_out_conn)
602 {
603 struct qed_fcoe_conn *p_conn = NULL;
604 int rc = 0;
605 u32 icid;
606
607 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
608 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
609 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
610 if (rc)
611 return rc;
612
613 /* Use input connection [if provided] or allocate a new one */
614 if (p_in_conn) {
615 p_conn = p_in_conn;
616 } else {
617 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
618 if (rc) {
619 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
620 qed_cxt_release_cid(p_hwfn, icid);
621 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
622 return rc;
623 }
624 }
625
626 p_conn->icid = icid;
627 p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
628 *p_out_conn = p_conn;
629
630 return rc;
631 }
632
qed_fcoe_release_connection(struct qed_hwfn * p_hwfn,struct qed_fcoe_conn * p_conn)633 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
634 struct qed_fcoe_conn *p_conn)
635 {
636 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
637 list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
638 qed_cxt_release_cid(p_hwfn, p_conn->icid);
639 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
640 }
641
_qed_fcoe_get_tstats(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_fcoe_stats * p_stats)642 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
643 struct qed_ptt *p_ptt,
644 struct qed_fcoe_stats *p_stats)
645 {
646 struct fcoe_rx_stat tstats;
647 u32 tstats_addr;
648
649 memset(&tstats, 0, sizeof(tstats));
650 tstats_addr = BAR0_MAP_REG_TSDM_RAM +
651 TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
652 qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
653
654 p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
655 p_stats->fcoe_rx_data_pkt_cnt =
656 HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
657 p_stats->fcoe_rx_xfer_pkt_cnt =
658 HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
659 p_stats->fcoe_rx_other_pkt_cnt =
660 HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
661
662 p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
663 le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
664 p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
665 le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
666 p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
667 le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
668 p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
669 le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
670 p_stats->fcoe_silent_drop_total_pkt_cnt =
671 le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
672 }
673
_qed_fcoe_get_pstats(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_fcoe_stats * p_stats)674 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
675 struct qed_ptt *p_ptt,
676 struct qed_fcoe_stats *p_stats)
677 {
678 struct fcoe_tx_stat pstats;
679 u32 pstats_addr;
680
681 memset(&pstats, 0, sizeof(pstats));
682 pstats_addr = BAR0_MAP_REG_PSDM_RAM +
683 PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
684 qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
685
686 p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
687 p_stats->fcoe_tx_data_pkt_cnt =
688 HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
689 p_stats->fcoe_tx_xfer_pkt_cnt =
690 HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
691 p_stats->fcoe_tx_other_pkt_cnt =
692 HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
693 }
694
qed_fcoe_get_stats(struct qed_hwfn * p_hwfn,struct qed_fcoe_stats * p_stats)695 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
696 struct qed_fcoe_stats *p_stats)
697 {
698 struct qed_ptt *p_ptt;
699
700 memset(p_stats, 0, sizeof(*p_stats));
701
702 p_ptt = qed_ptt_acquire(p_hwfn);
703
704 if (!p_ptt) {
705 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
706 return -EINVAL;
707 }
708
709 _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
710 _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
711
712 qed_ptt_release(p_hwfn, p_ptt);
713
714 return 0;
715 }
716
717 struct qed_hash_fcoe_con {
718 struct hlist_node node;
719 struct qed_fcoe_conn *con;
720 };
721
qed_fill_fcoe_dev_info(struct qed_dev * cdev,struct qed_dev_fcoe_info * info)722 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
723 struct qed_dev_fcoe_info *info)
724 {
725 struct qed_hwfn *hwfn = QED_AFFIN_HWFN(cdev);
726 int rc;
727
728 memset(info, 0, sizeof(*info));
729 rc = qed_fill_dev_info(cdev, &info->common);
730
731 info->primary_dbq_rq_addr =
732 qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
733 info->secondary_bdq_rq_addr =
734 qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
735
736 info->wwpn = hwfn->mcp_info->func_info.wwn_port;
737 info->wwnn = hwfn->mcp_info->func_info.wwn_node;
738
739 info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
740
741 return rc;
742 }
743
qed_register_fcoe_ops(struct qed_dev * cdev,struct qed_fcoe_cb_ops * ops,void * cookie)744 static void qed_register_fcoe_ops(struct qed_dev *cdev,
745 struct qed_fcoe_cb_ops *ops, void *cookie)
746 {
747 cdev->protocol_ops.fcoe = ops;
748 cdev->ops_cookie = cookie;
749 }
750
qed_fcoe_get_hash(struct qed_dev * cdev,u32 handle)751 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
752 u32 handle)
753 {
754 struct qed_hash_fcoe_con *hash_con = NULL;
755
756 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
757 return NULL;
758
759 hash_for_each_possible(cdev->connections, hash_con, node, handle) {
760 if (hash_con->con->icid == handle)
761 break;
762 }
763
764 if (!hash_con || (hash_con->con->icid != handle))
765 return NULL;
766
767 return hash_con;
768 }
769
qed_fcoe_stop(struct qed_dev * cdev)770 static int qed_fcoe_stop(struct qed_dev *cdev)
771 {
772 struct qed_ptt *p_ptt;
773 int rc;
774
775 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
776 DP_NOTICE(cdev, "fcoe already stopped\n");
777 return 0;
778 }
779
780 if (!hash_empty(cdev->connections)) {
781 DP_NOTICE(cdev,
782 "Can't stop fcoe - not all connections were returned\n");
783 return -EINVAL;
784 }
785
786 p_ptt = qed_ptt_acquire(QED_AFFIN_HWFN(cdev));
787 if (!p_ptt)
788 return -EAGAIN;
789
790 /* Stop the fcoe */
791 rc = qed_sp_fcoe_func_stop(QED_AFFIN_HWFN(cdev), p_ptt,
792 QED_SPQ_MODE_EBLOCK, NULL);
793 cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
794 qed_ptt_release(QED_AFFIN_HWFN(cdev), p_ptt);
795
796 return rc;
797 }
798
qed_fcoe_start(struct qed_dev * cdev,struct qed_fcoe_tid * tasks)799 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
800 {
801 int rc;
802
803 if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
804 DP_NOTICE(cdev, "fcoe already started;\n");
805 return 0;
806 }
807
808 rc = qed_sp_fcoe_func_start(QED_AFFIN_HWFN(cdev), QED_SPQ_MODE_EBLOCK,
809 NULL);
810 if (rc) {
811 DP_NOTICE(cdev, "Failed to start fcoe\n");
812 return rc;
813 }
814
815 cdev->flags |= QED_FLAG_STORAGE_STARTED;
816 hash_init(cdev->connections);
817
818 if (tasks) {
819 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
820 GFP_ATOMIC);
821
822 if (!tid_info) {
823 DP_NOTICE(cdev,
824 "Failed to allocate tasks information\n");
825 qed_fcoe_stop(cdev);
826 return -ENOMEM;
827 }
828
829 rc = qed_cxt_get_tid_mem_info(QED_AFFIN_HWFN(cdev), tid_info);
830 if (rc) {
831 DP_NOTICE(cdev, "Failed to gather task information\n");
832 qed_fcoe_stop(cdev);
833 kfree(tid_info);
834 return rc;
835 }
836
837 /* Fill task information */
838 tasks->size = tid_info->tid_size;
839 tasks->num_tids_per_block = tid_info->num_tids_per_block;
840 memcpy(tasks->blocks, tid_info->blocks,
841 MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
842
843 kfree(tid_info);
844 }
845
846 return 0;
847 }
848
qed_fcoe_acquire_conn(struct qed_dev * cdev,u32 * handle,u32 * fw_cid,void __iomem ** p_doorbell)849 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
850 u32 *handle,
851 u32 *fw_cid, void __iomem **p_doorbell)
852 {
853 struct qed_hash_fcoe_con *hash_con;
854 int rc;
855
856 /* Allocate a hashed connection */
857 hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
858 if (!hash_con) {
859 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
860 return -ENOMEM;
861 }
862
863 /* Acquire the connection */
864 rc = qed_fcoe_acquire_connection(QED_AFFIN_HWFN(cdev), NULL,
865 &hash_con->con);
866 if (rc) {
867 DP_NOTICE(cdev, "Failed to acquire Connection\n");
868 kfree(hash_con);
869 return rc;
870 }
871
872 /* Added the connection to hash table */
873 *handle = hash_con->con->icid;
874 *fw_cid = hash_con->con->fw_cid;
875 hash_add(cdev->connections, &hash_con->node, *handle);
876
877 if (p_doorbell)
878 *p_doorbell = qed_fcoe_get_db_addr(QED_AFFIN_HWFN(cdev),
879 *handle);
880
881 return 0;
882 }
883
qed_fcoe_release_conn(struct qed_dev * cdev,u32 handle)884 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
885 {
886 struct qed_hash_fcoe_con *hash_con;
887
888 hash_con = qed_fcoe_get_hash(cdev, handle);
889 if (!hash_con) {
890 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
891 handle);
892 return -EINVAL;
893 }
894
895 hlist_del(&hash_con->node);
896 qed_fcoe_release_connection(QED_AFFIN_HWFN(cdev), hash_con->con);
897 kfree(hash_con);
898
899 return 0;
900 }
901
qed_fcoe_offload_conn(struct qed_dev * cdev,u32 handle,struct qed_fcoe_params_offload * conn_info)902 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
903 u32 handle,
904 struct qed_fcoe_params_offload *conn_info)
905 {
906 struct qed_hash_fcoe_con *hash_con;
907 struct qed_fcoe_conn *con;
908
909 hash_con = qed_fcoe_get_hash(cdev, handle);
910 if (!hash_con) {
911 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
912 handle);
913 return -EINVAL;
914 }
915
916 /* Update the connection with information from the params */
917 con = hash_con->con;
918
919 con->sq_pbl_addr = conn_info->sq_pbl_addr;
920 con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
921 con->sq_next_page_addr = conn_info->sq_next_page_addr;
922 con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
923 con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
924 con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
925 con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
926 con->vlan_tag = conn_info->vlan_tag;
927 con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
928 con->flags = conn_info->flags;
929 con->def_q_idx = conn_info->def_q_idx;
930
931 con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
932 conn_info->src_mac[4];
933 con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
934 conn_info->src_mac[2];
935 con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
936 conn_info->src_mac[0];
937 con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
938 conn_info->dst_mac[4];
939 con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
940 conn_info->dst_mac[2];
941 con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
942 conn_info->dst_mac[0];
943
944 con->s_id.addr_hi = conn_info->s_id.addr_hi;
945 con->s_id.addr_mid = conn_info->s_id.addr_mid;
946 con->s_id.addr_lo = conn_info->s_id.addr_lo;
947 con->d_id.addr_hi = conn_info->d_id.addr_hi;
948 con->d_id.addr_mid = conn_info->d_id.addr_mid;
949 con->d_id.addr_lo = conn_info->d_id.addr_lo;
950
951 return qed_sp_fcoe_conn_offload(QED_AFFIN_HWFN(cdev), con,
952 QED_SPQ_MODE_EBLOCK, NULL);
953 }
954
qed_fcoe_destroy_conn(struct qed_dev * cdev,u32 handle,dma_addr_t terminate_params)955 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
956 u32 handle, dma_addr_t terminate_params)
957 {
958 struct qed_hash_fcoe_con *hash_con;
959 struct qed_fcoe_conn *con;
960
961 hash_con = qed_fcoe_get_hash(cdev, handle);
962 if (!hash_con) {
963 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
964 handle);
965 return -EINVAL;
966 }
967
968 /* Update the connection with information from the params */
969 con = hash_con->con;
970 con->terminate_params = terminate_params;
971
972 return qed_sp_fcoe_conn_destroy(QED_AFFIN_HWFN(cdev), con,
973 QED_SPQ_MODE_EBLOCK, NULL);
974 }
975
qed_fcoe_stats(struct qed_dev * cdev,struct qed_fcoe_stats * stats)976 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
977 {
978 return qed_fcoe_get_stats(QED_AFFIN_HWFN(cdev), stats);
979 }
980
qed_get_protocol_stats_fcoe(struct qed_dev * cdev,struct qed_mcp_fcoe_stats * stats)981 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
982 struct qed_mcp_fcoe_stats *stats)
983 {
984 struct qed_fcoe_stats proto_stats;
985
986 /* Retrieve FW statistics */
987 memset(&proto_stats, 0, sizeof(proto_stats));
988 if (qed_fcoe_stats(cdev, &proto_stats)) {
989 DP_VERBOSE(cdev, QED_MSG_STORAGE,
990 "Failed to collect FCoE statistics\n");
991 return;
992 }
993
994 /* Translate FW statistics into struct */
995 stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
996 proto_stats.fcoe_rx_xfer_pkt_cnt +
997 proto_stats.fcoe_rx_other_pkt_cnt;
998 stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
999 proto_stats.fcoe_tx_xfer_pkt_cnt +
1000 proto_stats.fcoe_tx_other_pkt_cnt;
1001 stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1002
1003 /* Request protocol driver to fill-in the rest */
1004 if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1005 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1006 void *cookie = cdev->ops_cookie;
1007
1008 if (ops->get_login_failures)
1009 stats->login_failure = ops->get_login_failures(cookie);
1010 }
1011 }
1012
1013 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1014 .common = &qed_common_ops_pass,
1015 .ll2 = &qed_ll2_ops_pass,
1016 .fill_dev_info = &qed_fill_fcoe_dev_info,
1017 .start = &qed_fcoe_start,
1018 .stop = &qed_fcoe_stop,
1019 .register_ops = &qed_register_fcoe_ops,
1020 .acquire_conn = &qed_fcoe_acquire_conn,
1021 .release_conn = &qed_fcoe_release_conn,
1022 .offload_conn = &qed_fcoe_offload_conn,
1023 .destroy_conn = &qed_fcoe_destroy_conn,
1024 .get_stats = &qed_fcoe_stats,
1025 };
1026
qed_get_fcoe_ops(void)1027 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1028 {
1029 return &qed_fcoe_ops_pass;
1030 }
1031 EXPORT_SYMBOL(qed_get_fcoe_ops);
1032
qed_put_fcoe_ops(void)1033 void qed_put_fcoe_ops(void)
1034 {
1035 }
1036 EXPORT_SYMBOL(qed_put_fcoe_ops);
1037