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