qed: Fix SPQ entries not returned to pool in error flows
[sfrench/cifs-2.6.git] / drivers / net / ethernet / qlogic / qed / qed_fcoe.c
1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015-2017  QLogic Corporation
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and /or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32
33 #include <linux/types.h>
34 #include <asm/byteorder.h>
35 #include <asm/param.h>
36 #include <linux/delay.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/interrupt.h>
39 #include <linux/kernel.h>
40 #include <linux/log2.h>
41 #include <linux/module.h>
42 #include <linux/pci.h>
43 #include <linux/slab.h>
44 #include <linux/stddef.h>
45 #include <linux/string.h>
46 #include <linux/workqueue.h>
47 #include <linux/errno.h>
48 #include <linux/list.h>
49 #include <linux/spinlock.h>
50 #define __PREVENT_DUMP_MEM_ARR__
51 #define __PREVENT_PXP_GLOBAL_WIN__
52 #include "qed.h"
53 #include "qed_cxt.h"
54 #include "qed_dev_api.h"
55 #include "qed_fcoe.h"
56 #include "qed_hsi.h"
57 #include "qed_hw.h"
58 #include "qed_int.h"
59 #include "qed_ll2.h"
60 #include "qed_mcp.h"
61 #include "qed_reg_addr.h"
62 #include "qed_sp.h"
63 #include "qed_sriov.h"
64 #include <linux/qed/qed_fcoe_if.h>
65
66 struct qed_fcoe_conn {
67         struct list_head list_entry;
68         bool free_on_delete;
69
70         u16 conn_id;
71         u32 icid;
72         u32 fw_cid;
73         u8 layer_code;
74
75         dma_addr_t sq_pbl_addr;
76         dma_addr_t sq_curr_page_addr;
77         dma_addr_t sq_next_page_addr;
78         dma_addr_t xferq_pbl_addr;
79         void *xferq_pbl_addr_virt_addr;
80         dma_addr_t xferq_addr[4];
81         void *xferq_addr_virt_addr[4];
82         dma_addr_t confq_pbl_addr;
83         void *confq_pbl_addr_virt_addr;
84         dma_addr_t confq_addr[2];
85         void *confq_addr_virt_addr[2];
86
87         dma_addr_t terminate_params;
88
89         u16 dst_mac_addr_lo;
90         u16 dst_mac_addr_mid;
91         u16 dst_mac_addr_hi;
92         u16 src_mac_addr_lo;
93         u16 src_mac_addr_mid;
94         u16 src_mac_addr_hi;
95
96         u16 tx_max_fc_pay_len;
97         u16 e_d_tov_timer_val;
98         u16 rec_tov_timer_val;
99         u16 rx_max_fc_pay_len;
100         u16 vlan_tag;
101         u16 physical_q0;
102
103         struct fc_addr_nw s_id;
104         u8 max_conc_seqs_c3;
105         struct fc_addr_nw d_id;
106         u8 flags;
107         u8 def_q_idx;
108 };
109
110 static int
111 qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
112                        enum spq_mode comp_mode,
113                        struct qed_spq_comp_cb *p_comp_addr)
114 {
115         struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
116         struct fcoe_init_ramrod_params *p_ramrod = NULL;
117         struct fcoe_init_func_ramrod_data *p_data;
118         struct e4_fcoe_conn_context *p_cxt = NULL;
119         struct qed_spq_entry *p_ent = NULL;
120         struct qed_sp_init_data init_data;
121         struct qed_cxt_info cxt_info;
122         u32 dummy_cid;
123         int rc = 0;
124         u16 tmp;
125         u8 i;
126
127         /* Get SPQ entry */
128         memset(&init_data, 0, sizeof(init_data));
129         init_data.cid = qed_spq_get_cid(p_hwfn);
130         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
131         init_data.comp_mode = comp_mode;
132         init_data.p_comp_data = p_comp_addr;
133
134         rc = qed_sp_init_request(p_hwfn, &p_ent,
135                                  FCOE_RAMROD_CMD_ID_INIT_FUNC,
136                                  PROTOCOLID_FCOE, &init_data);
137         if (rc)
138                 return rc;
139
140         p_ramrod = &p_ent->ramrod.fcoe_init;
141         p_data = &p_ramrod->init_ramrod_data;
142         fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
143
144         /* Sanity */
145         if (fcoe_pf_params->num_cqs > p_hwfn->hw_info.feat_num[QED_FCOE_CQ]) {
146                 DP_ERR(p_hwfn,
147                        "Cannot satisfy CQ amount. CQs requested %d, CQs available %d. Aborting function start\n",
148                        fcoe_pf_params->num_cqs,
149                        p_hwfn->hw_info.feat_num[QED_FCOE_CQ]);
150                 rc = -EINVAL;
151                 goto err;
152         }
153
154         p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
155         tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
156         p_data->sq_num_pages_in_pbl = tmp;
157
158         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
159         if (rc)
160                 goto err;
161
162         cxt_info.iid = dummy_cid;
163         rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
164         if (rc) {
165                 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
166                           dummy_cid);
167                 goto err;
168         }
169         p_cxt = cxt_info.p_cxt;
170         SET_FIELD(p_cxt->tstorm_ag_context.flags3,
171                   E4_TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
172
173         fcoe_pf_params->dummy_icid = (u16)dummy_cid;
174
175         tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
176         p_data->func_params.num_tasks = tmp;
177         p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
178         p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
179
180         DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
181                        fcoe_pf_params->glbl_q_params_addr);
182
183         tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
184         p_data->q_params.cq_num_entries = tmp;
185
186         tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
187         p_data->q_params.cmdq_num_entries = tmp;
188
189         tmp = fcoe_pf_params->num_cqs;
190         p_data->q_params.num_queues = (u8)tmp;
191
192         tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
193         p_data->q_params.queue_relative_offset = (u8)tmp;
194
195         for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
196                 u16 igu_sb_id;
197
198                 igu_sb_id = qed_get_igu_sb_id(p_hwfn, i);
199                 tmp = cpu_to_le16(igu_sb_id);
200                 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
201         }
202
203         p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
204         p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
205
206         p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
207
208         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
209                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
210         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
211             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
212         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
213         p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
214         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
215         p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
216
217         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
218                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
219         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
220             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
221         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
222         p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
223         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
224         p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
225         tmp = fcoe_pf_params->rq_buffer_size;
226         p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
227
228         if (fcoe_pf_params->is_target) {
229                 SET_FIELD(p_data->q_params.q_validity,
230                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
231                 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
232                         SET_FIELD(p_data->q_params.q_validity,
233                                   SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
234                 SET_FIELD(p_data->q_params.q_validity,
235                           SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
236         } else {
237                 SET_FIELD(p_data->q_params.q_validity,
238                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
239         }
240
241         rc = qed_spq_post(p_hwfn, p_ent, NULL);
242
243         return rc;
244
245 err:
246         qed_sp_destroy_request(p_hwfn, p_ent);
247         return rc;
248 }
249
250 static int
251 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
252                          struct qed_fcoe_conn *p_conn,
253                          enum spq_mode comp_mode,
254                          struct qed_spq_comp_cb *p_comp_addr)
255 {
256         struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
257         struct fcoe_conn_offload_ramrod_data *p_data;
258         struct qed_spq_entry *p_ent = NULL;
259         struct qed_sp_init_data init_data;
260         u16 physical_q0, tmp;
261         int rc;
262
263         /* Get SPQ entry */
264         memset(&init_data, 0, sizeof(init_data));
265         init_data.cid = p_conn->icid;
266         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
267         init_data.comp_mode = comp_mode;
268         init_data.p_comp_data = p_comp_addr;
269
270         rc = qed_sp_init_request(p_hwfn, &p_ent,
271                                  FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
272                                  PROTOCOLID_FCOE, &init_data);
273         if (rc)
274                 return rc;
275
276         p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
277         p_data = &p_ramrod->offload_ramrod_data;
278
279         /* Transmission PQ is the first of the PF */
280         physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
281         p_conn->physical_q0 = cpu_to_le16(physical_q0);
282         p_data->physical_q0 = cpu_to_le16(physical_q0);
283
284         p_data->conn_id = cpu_to_le16(p_conn->conn_id);
285         DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
286         DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
287         DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
288         DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
289         DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
290         DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
291
292         DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
293         DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
294         DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
295
296         p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
297         p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
298         p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
299         p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
300         p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
301         p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
302
303         tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
304         p_data->tx_max_fc_pay_len = tmp;
305         tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
306         p_data->e_d_tov_timer_val = tmp;
307         tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
308         p_data->rec_rr_tov_timer_val = tmp;
309         tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
310         p_data->rx_max_fc_pay_len = tmp;
311
312         p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
313         p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
314         p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
315         p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
316         p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
317         p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
318         p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
319         p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
320         p_data->flags = p_conn->flags;
321         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
322                 SET_FIELD(p_data->flags,
323                           FCOE_CONN_OFFLOAD_RAMROD_DATA_B_SINGLE_VLAN, 1);
324         p_data->def_q_idx = p_conn->def_q_idx;
325
326         return qed_spq_post(p_hwfn, p_ent, NULL);
327 }
328
329 static int
330 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
331                          struct qed_fcoe_conn *p_conn,
332                          enum spq_mode comp_mode,
333                          struct qed_spq_comp_cb *p_comp_addr)
334 {
335         struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
336         struct qed_spq_entry *p_ent = NULL;
337         struct qed_sp_init_data init_data;
338         int rc = 0;
339
340         /* Get SPQ entry */
341         memset(&init_data, 0, sizeof(init_data));
342         init_data.cid = p_conn->icid;
343         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
344         init_data.comp_mode = comp_mode;
345         init_data.p_comp_data = p_comp_addr;
346
347         rc = qed_sp_init_request(p_hwfn, &p_ent,
348                                  FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
349                                  PROTOCOLID_FCOE, &init_data);
350         if (rc)
351                 return rc;
352
353         p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
354         DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
355                        p_conn->terminate_params);
356
357         return qed_spq_post(p_hwfn, p_ent, NULL);
358 }
359
360 static int
361 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
362                       struct qed_ptt *p_ptt,
363                       enum spq_mode comp_mode,
364                       struct qed_spq_comp_cb *p_comp_addr)
365 {
366         struct qed_spq_entry *p_ent = NULL;
367         struct qed_sp_init_data init_data;
368         u32 active_segs = 0;
369         int rc = 0;
370
371         /* Get SPQ entry */
372         memset(&init_data, 0, sizeof(init_data));
373         init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
374         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
375         init_data.comp_mode = comp_mode;
376         init_data.p_comp_data = p_comp_addr;
377
378         rc = qed_sp_init_request(p_hwfn, &p_ent,
379                                  FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
380                                  PROTOCOLID_FCOE, &init_data);
381         if (rc)
382                 return rc;
383
384         active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
385         active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
386         qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
387
388         return qed_spq_post(p_hwfn, p_ent, NULL);
389 }
390
391 static int
392 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
393                              struct qed_fcoe_conn **p_out_conn)
394 {
395         struct qed_fcoe_conn *p_conn = NULL;
396         void *p_addr;
397         u32 i;
398
399         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
400         if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
401                 p_conn =
402                     list_first_entry(&p_hwfn->p_fcoe_info->free_list,
403                                      struct qed_fcoe_conn, list_entry);
404         if (p_conn) {
405                 list_del(&p_conn->list_entry);
406                 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
407                 *p_out_conn = p_conn;
408                 return 0;
409         }
410         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
411
412         p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
413         if (!p_conn)
414                 return -ENOMEM;
415
416         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
417                                     QED_CHAIN_PAGE_SIZE,
418                                     &p_conn->xferq_pbl_addr, GFP_KERNEL);
419         if (!p_addr)
420                 goto nomem_pbl_xferq;
421         p_conn->xferq_pbl_addr_virt_addr = p_addr;
422
423         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
424                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
425                                             QED_CHAIN_PAGE_SIZE,
426                                             &p_conn->xferq_addr[i], GFP_KERNEL);
427                 if (!p_addr)
428                         goto nomem_xferq;
429                 p_conn->xferq_addr_virt_addr[i] = p_addr;
430
431                 p_addr = p_conn->xferq_pbl_addr_virt_addr;
432                 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
433         }
434
435         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
436                                     QED_CHAIN_PAGE_SIZE,
437                                     &p_conn->confq_pbl_addr, GFP_KERNEL);
438         if (!p_addr)
439                 goto nomem_xferq;
440         p_conn->confq_pbl_addr_virt_addr = p_addr;
441
442         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
443                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
444                                             QED_CHAIN_PAGE_SIZE,
445                                             &p_conn->confq_addr[i], GFP_KERNEL);
446                 if (!p_addr)
447                         goto nomem_confq;
448                 p_conn->confq_addr_virt_addr[i] = p_addr;
449
450                 p_addr = p_conn->confq_pbl_addr_virt_addr;
451                 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
452         }
453
454         p_conn->free_on_delete = true;
455         *p_out_conn = p_conn;
456         return 0;
457
458 nomem_confq:
459         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
460                           QED_CHAIN_PAGE_SIZE,
461                           p_conn->confq_pbl_addr_virt_addr,
462                           p_conn->confq_pbl_addr);
463         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
464                 if (p_conn->confq_addr_virt_addr[i])
465                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
466                                           QED_CHAIN_PAGE_SIZE,
467                                           p_conn->confq_addr_virt_addr[i],
468                                           p_conn->confq_addr[i]);
469 nomem_xferq:
470         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
471                           QED_CHAIN_PAGE_SIZE,
472                           p_conn->xferq_pbl_addr_virt_addr,
473                           p_conn->xferq_pbl_addr);
474         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
475                 if (p_conn->xferq_addr_virt_addr[i])
476                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
477                                           QED_CHAIN_PAGE_SIZE,
478                                           p_conn->xferq_addr_virt_addr[i],
479                                           p_conn->xferq_addr[i]);
480 nomem_pbl_xferq:
481         kfree(p_conn);
482         return -ENOMEM;
483 }
484
485 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
486                                      struct qed_fcoe_conn *p_conn)
487 {
488         u32 i;
489
490         if (!p_conn)
491                 return;
492
493         if (p_conn->confq_pbl_addr_virt_addr)
494                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
495                                   QED_CHAIN_PAGE_SIZE,
496                                   p_conn->confq_pbl_addr_virt_addr,
497                                   p_conn->confq_pbl_addr);
498
499         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
500                 if (!p_conn->confq_addr_virt_addr[i])
501                         continue;
502                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
503                                   QED_CHAIN_PAGE_SIZE,
504                                   p_conn->confq_addr_virt_addr[i],
505                                   p_conn->confq_addr[i]);
506         }
507
508         if (p_conn->xferq_pbl_addr_virt_addr)
509                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
510                                   QED_CHAIN_PAGE_SIZE,
511                                   p_conn->xferq_pbl_addr_virt_addr,
512                                   p_conn->xferq_pbl_addr);
513
514         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
515                 if (!p_conn->xferq_addr_virt_addr[i])
516                         continue;
517                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
518                                   QED_CHAIN_PAGE_SIZE,
519                                   p_conn->xferq_addr_virt_addr[i],
520                                   p_conn->xferq_addr[i]);
521         }
522         kfree(p_conn);
523 }
524
525 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
526 {
527         return (u8 __iomem *)p_hwfn->doorbells +
528                qed_db_addr(cid, DQ_DEMS_LEGACY);
529 }
530
531 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
532                                                    u8 bdq_id)
533 {
534         if (RESC_NUM(p_hwfn, QED_BDQ)) {
535                 return (u8 __iomem *)p_hwfn->regview +
536                        GTT_BAR0_MAP_REG_MSDM_RAM +
537                        MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
538                                                                   QED_BDQ),
539                                                        bdq_id);
540         } else {
541                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
542                 return NULL;
543         }
544 }
545
546 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
547                                                      u8 bdq_id)
548 {
549         if (RESC_NUM(p_hwfn, QED_BDQ)) {
550                 return (u8 __iomem *)p_hwfn->regview +
551                        GTT_BAR0_MAP_REG_TSDM_RAM +
552                        TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
553                                                                   QED_BDQ),
554                                                        bdq_id);
555         } else {
556                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
557                 return NULL;
558         }
559 }
560
561 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
562 {
563         struct qed_fcoe_info *p_fcoe_info;
564
565         /* Allocate LL2's set struct */
566         p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
567         if (!p_fcoe_info) {
568                 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
569                 return -ENOMEM;
570         }
571         INIT_LIST_HEAD(&p_fcoe_info->free_list);
572
573         p_hwfn->p_fcoe_info = p_fcoe_info;
574         return 0;
575 }
576
577 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
578 {
579         struct e4_fcoe_task_context *p_task_ctx = NULL;
580         int rc;
581         u32 i;
582
583         spin_lock_init(&p_hwfn->p_fcoe_info->lock);
584         for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
585                 rc = qed_cxt_get_task_ctx(p_hwfn, i,
586                                           QED_CTX_WORKING_MEM,
587                                           (void **)&p_task_ctx);
588                 if (rc)
589                         continue;
590
591                 memset(p_task_ctx, 0, sizeof(struct e4_fcoe_task_context));
592                 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
593                           TIMERS_CONTEXT_VALIDLC0, 1);
594                 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
595                           TIMERS_CONTEXT_VALIDLC1, 1);
596                 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
597                           E4_TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
598         }
599 }
600
601 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
602 {
603         struct qed_fcoe_conn *p_conn = NULL;
604
605         if (!p_hwfn->p_fcoe_info)
606                 return;
607
608         while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
609                 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
610                                           struct qed_fcoe_conn, list_entry);
611                 if (!p_conn)
612                         break;
613                 list_del(&p_conn->list_entry);
614                 qed_fcoe_free_connection(p_hwfn, p_conn);
615         }
616
617         kfree(p_hwfn->p_fcoe_info);
618         p_hwfn->p_fcoe_info = NULL;
619 }
620
621 static int
622 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
623                             struct qed_fcoe_conn *p_in_conn,
624                             struct qed_fcoe_conn **p_out_conn)
625 {
626         struct qed_fcoe_conn *p_conn = NULL;
627         int rc = 0;
628         u32 icid;
629
630         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
631         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
632         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
633         if (rc)
634                 return rc;
635
636         /* Use input connection [if provided] or allocate a new one */
637         if (p_in_conn) {
638                 p_conn = p_in_conn;
639         } else {
640                 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
641                 if (rc) {
642                         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
643                         qed_cxt_release_cid(p_hwfn, icid);
644                         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
645                         return rc;
646                 }
647         }
648
649         p_conn->icid = icid;
650         p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
651         *p_out_conn = p_conn;
652
653         return rc;
654 }
655
656 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
657                                         struct qed_fcoe_conn *p_conn)
658 {
659         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
660         list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
661         qed_cxt_release_cid(p_hwfn, p_conn->icid);
662         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
663 }
664
665 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
666                                  struct qed_ptt *p_ptt,
667                                  struct qed_fcoe_stats *p_stats)
668 {
669         struct fcoe_rx_stat tstats;
670         u32 tstats_addr;
671
672         memset(&tstats, 0, sizeof(tstats));
673         tstats_addr = BAR0_MAP_REG_TSDM_RAM +
674             TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
675         qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
676
677         p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
678         p_stats->fcoe_rx_data_pkt_cnt =
679             HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
680         p_stats->fcoe_rx_xfer_pkt_cnt =
681             HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
682         p_stats->fcoe_rx_other_pkt_cnt =
683             HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
684
685         p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
686             le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
687         p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
688             le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
689         p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
690             le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
691         p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
692             le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
693         p_stats->fcoe_silent_drop_total_pkt_cnt =
694             le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
695 }
696
697 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
698                                  struct qed_ptt *p_ptt,
699                                  struct qed_fcoe_stats *p_stats)
700 {
701         struct fcoe_tx_stat pstats;
702         u32 pstats_addr;
703
704         memset(&pstats, 0, sizeof(pstats));
705         pstats_addr = BAR0_MAP_REG_PSDM_RAM +
706             PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
707         qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
708
709         p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
710         p_stats->fcoe_tx_data_pkt_cnt =
711             HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
712         p_stats->fcoe_tx_xfer_pkt_cnt =
713             HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
714         p_stats->fcoe_tx_other_pkt_cnt =
715             HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
716 }
717
718 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
719                               struct qed_fcoe_stats *p_stats)
720 {
721         struct qed_ptt *p_ptt;
722
723         memset(p_stats, 0, sizeof(*p_stats));
724
725         p_ptt = qed_ptt_acquire(p_hwfn);
726
727         if (!p_ptt) {
728                 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
729                 return -EINVAL;
730         }
731
732         _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
733         _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
734
735         qed_ptt_release(p_hwfn, p_ptt);
736
737         return 0;
738 }
739
740 struct qed_hash_fcoe_con {
741         struct hlist_node node;
742         struct qed_fcoe_conn *con;
743 };
744
745 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
746                                   struct qed_dev_fcoe_info *info)
747 {
748         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
749         int rc;
750
751         memset(info, 0, sizeof(*info));
752         rc = qed_fill_dev_info(cdev, &info->common);
753
754         info->primary_dbq_rq_addr =
755             qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
756         info->secondary_bdq_rq_addr =
757             qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
758
759         info->wwpn = hwfn->mcp_info->func_info.wwn_port;
760         info->wwnn = hwfn->mcp_info->func_info.wwn_node;
761
762         info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
763
764         return rc;
765 }
766
767 static void qed_register_fcoe_ops(struct qed_dev *cdev,
768                                   struct qed_fcoe_cb_ops *ops, void *cookie)
769 {
770         cdev->protocol_ops.fcoe = ops;
771         cdev->ops_cookie = cookie;
772 }
773
774 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
775                                                    u32 handle)
776 {
777         struct qed_hash_fcoe_con *hash_con = NULL;
778
779         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
780                 return NULL;
781
782         hash_for_each_possible(cdev->connections, hash_con, node, handle) {
783                 if (hash_con->con->icid == handle)
784                         break;
785         }
786
787         if (!hash_con || (hash_con->con->icid != handle))
788                 return NULL;
789
790         return hash_con;
791 }
792
793 static int qed_fcoe_stop(struct qed_dev *cdev)
794 {
795         struct qed_ptt *p_ptt;
796         int rc;
797
798         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
799                 DP_NOTICE(cdev, "fcoe already stopped\n");
800                 return 0;
801         }
802
803         if (!hash_empty(cdev->connections)) {
804                 DP_NOTICE(cdev,
805                           "Can't stop fcoe - not all connections were returned\n");
806                 return -EINVAL;
807         }
808
809         p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
810         if (!p_ptt)
811                 return -EAGAIN;
812
813         /* Stop the fcoe */
814         rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev), p_ptt,
815                                    QED_SPQ_MODE_EBLOCK, NULL);
816         cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
817         qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
818
819         return rc;
820 }
821
822 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
823 {
824         int rc;
825
826         if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
827                 DP_NOTICE(cdev, "fcoe already started;\n");
828                 return 0;
829         }
830
831         rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
832                                     QED_SPQ_MODE_EBLOCK, NULL);
833         if (rc) {
834                 DP_NOTICE(cdev, "Failed to start fcoe\n");
835                 return rc;
836         }
837
838         cdev->flags |= QED_FLAG_STORAGE_STARTED;
839         hash_init(cdev->connections);
840
841         if (tasks) {
842                 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
843                                                        GFP_ATOMIC);
844
845                 if (!tid_info) {
846                         DP_NOTICE(cdev,
847                                   "Failed to allocate tasks information\n");
848                         qed_fcoe_stop(cdev);
849                         return -ENOMEM;
850                 }
851
852                 rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
853                 if (rc) {
854                         DP_NOTICE(cdev, "Failed to gather task information\n");
855                         qed_fcoe_stop(cdev);
856                         kfree(tid_info);
857                         return rc;
858                 }
859
860                 /* Fill task information */
861                 tasks->size = tid_info->tid_size;
862                 tasks->num_tids_per_block = tid_info->num_tids_per_block;
863                 memcpy(tasks->blocks, tid_info->blocks,
864                        MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
865
866                 kfree(tid_info);
867         }
868
869         return 0;
870 }
871
872 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
873                                  u32 *handle,
874                                  u32 *fw_cid, void __iomem **p_doorbell)
875 {
876         struct qed_hash_fcoe_con *hash_con;
877         int rc;
878
879         /* Allocate a hashed connection */
880         hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
881         if (!hash_con) {
882                 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
883                 return -ENOMEM;
884         }
885
886         /* Acquire the connection */
887         rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
888                                          &hash_con->con);
889         if (rc) {
890                 DP_NOTICE(cdev, "Failed to acquire Connection\n");
891                 kfree(hash_con);
892                 return rc;
893         }
894
895         /* Added the connection to hash table */
896         *handle = hash_con->con->icid;
897         *fw_cid = hash_con->con->fw_cid;
898         hash_add(cdev->connections, &hash_con->node, *handle);
899
900         if (p_doorbell)
901                 *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
902                                                    *handle);
903
904         return 0;
905 }
906
907 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
908 {
909         struct qed_hash_fcoe_con *hash_con;
910
911         hash_con = qed_fcoe_get_hash(cdev, handle);
912         if (!hash_con) {
913                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
914                           handle);
915                 return -EINVAL;
916         }
917
918         hlist_del(&hash_con->node);
919         qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
920         kfree(hash_con);
921
922         return 0;
923 }
924
925 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
926                                  u32 handle,
927                                  struct qed_fcoe_params_offload *conn_info)
928 {
929         struct qed_hash_fcoe_con *hash_con;
930         struct qed_fcoe_conn *con;
931
932         hash_con = qed_fcoe_get_hash(cdev, handle);
933         if (!hash_con) {
934                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
935                           handle);
936                 return -EINVAL;
937         }
938
939         /* Update the connection with information from the params */
940         con = hash_con->con;
941
942         con->sq_pbl_addr = conn_info->sq_pbl_addr;
943         con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
944         con->sq_next_page_addr = conn_info->sq_next_page_addr;
945         con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
946         con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
947         con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
948         con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
949         con->vlan_tag = conn_info->vlan_tag;
950         con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
951         con->flags = conn_info->flags;
952         con->def_q_idx = conn_info->def_q_idx;
953
954         con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
955             conn_info->src_mac[4];
956         con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
957             conn_info->src_mac[2];
958         con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
959             conn_info->src_mac[0];
960         con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
961             conn_info->dst_mac[4];
962         con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
963             conn_info->dst_mac[2];
964         con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
965             conn_info->dst_mac[0];
966
967         con->s_id.addr_hi = conn_info->s_id.addr_hi;
968         con->s_id.addr_mid = conn_info->s_id.addr_mid;
969         con->s_id.addr_lo = conn_info->s_id.addr_lo;
970         con->d_id.addr_hi = conn_info->d_id.addr_hi;
971         con->d_id.addr_mid = conn_info->d_id.addr_mid;
972         con->d_id.addr_lo = conn_info->d_id.addr_lo;
973
974         return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
975                                         QED_SPQ_MODE_EBLOCK, NULL);
976 }
977
978 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
979                                  u32 handle, dma_addr_t terminate_params)
980 {
981         struct qed_hash_fcoe_con *hash_con;
982         struct qed_fcoe_conn *con;
983
984         hash_con = qed_fcoe_get_hash(cdev, handle);
985         if (!hash_con) {
986                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
987                           handle);
988                 return -EINVAL;
989         }
990
991         /* Update the connection with information from the params */
992         con = hash_con->con;
993         con->terminate_params = terminate_params;
994
995         return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
996                                         QED_SPQ_MODE_EBLOCK, NULL);
997 }
998
999 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
1000 {
1001         return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
1002 }
1003
1004 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
1005                                  struct qed_mcp_fcoe_stats *stats)
1006 {
1007         struct qed_fcoe_stats proto_stats;
1008
1009         /* Retrieve FW statistics */
1010         memset(&proto_stats, 0, sizeof(proto_stats));
1011         if (qed_fcoe_stats(cdev, &proto_stats)) {
1012                 DP_VERBOSE(cdev, QED_MSG_STORAGE,
1013                            "Failed to collect FCoE statistics\n");
1014                 return;
1015         }
1016
1017         /* Translate FW statistics into struct */
1018         stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
1019                          proto_stats.fcoe_rx_xfer_pkt_cnt +
1020                          proto_stats.fcoe_rx_other_pkt_cnt;
1021         stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
1022                          proto_stats.fcoe_tx_xfer_pkt_cnt +
1023                          proto_stats.fcoe_tx_other_pkt_cnt;
1024         stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1025
1026         /* Request protocol driver to fill-in the rest */
1027         if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1028                 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1029                 void *cookie = cdev->ops_cookie;
1030
1031                 if (ops->get_login_failures)
1032                         stats->login_failure = ops->get_login_failures(cookie);
1033         }
1034 }
1035
1036 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1037         .common = &qed_common_ops_pass,
1038         .ll2 = &qed_ll2_ops_pass,
1039         .fill_dev_info = &qed_fill_fcoe_dev_info,
1040         .start = &qed_fcoe_start,
1041         .stop = &qed_fcoe_stop,
1042         .register_ops = &qed_register_fcoe_ops,
1043         .acquire_conn = &qed_fcoe_acquire_conn,
1044         .release_conn = &qed_fcoe_release_conn,
1045         .offload_conn = &qed_fcoe_offload_conn,
1046         .destroy_conn = &qed_fcoe_destroy_conn,
1047         .get_stats = &qed_fcoe_stats,
1048 };
1049
1050 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1051 {
1052         return &qed_fcoe_ops_pass;
1053 }
1054 EXPORT_SYMBOL(qed_get_fcoe_ops);
1055
1056 void qed_put_fcoe_ops(void)
1057 {
1058 }
1059 EXPORT_SYMBOL(qed_put_fcoe_ops);