1 /* bnx2fc_hwi.c: QLogic Linux FCoE offload driver.
2 * This file contains the code that low level functions that interact
3 * with 57712 FCoE firmware.
5 * Copyright (c) 2008-2013 Broadcom Corporation
6 * Copyright (c) 2014-2016 QLogic Corporation
7 * Copyright (c) 2016-2017 Cavium Inc.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation.
13 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
18 DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
20 static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
21 struct fcoe_kcqe *new_cqe_kcqe);
22 static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
23 struct fcoe_kcqe *ofld_kcqe);
24 static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
25 struct fcoe_kcqe *ofld_kcqe);
26 static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
27 static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
28 struct fcoe_kcqe *destroy_kcqe);
30 int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
32 struct fcoe_kwqe_stat stat_req;
33 struct kwqe *kwqe_arr[2];
37 memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
38 stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
40 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
42 stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
43 stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
45 kwqe_arr[0] = (struct kwqe *) &stat_req;
47 if (hba->cnic && hba->cnic->submit_kwqes)
48 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
54 * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
56 * @hba: adapter structure pointer
58 * Send down FCoE firmware init KWQEs which initiates the initial handshake
62 int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
64 struct fcoe_kwqe_init1 fcoe_init1;
65 struct fcoe_kwqe_init2 fcoe_init2;
66 struct fcoe_kwqe_init3 fcoe_init3;
67 struct kwqe *kwqe_arr[3];
72 printk(KERN_ERR PFX "hba->cnic NULL during fcoe fw init\n");
77 memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
78 fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
79 fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
80 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
82 fcoe_init1.num_tasks = hba->max_tasks;
83 fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
84 fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
85 fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
86 fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
87 fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
88 fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
89 fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
90 fcoe_init1.task_list_pbl_addr_hi =
91 (u32) ((u64) hba->task_ctx_bd_dma >> 32);
92 fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
94 fcoe_init1.flags = (PAGE_SHIFT <<
95 FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
97 fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
100 memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
101 fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
102 fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
103 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
105 fcoe_init2.hsi_major_version = FCOE_HSI_MAJOR_VERSION;
106 fcoe_init2.hsi_minor_version = FCOE_HSI_MINOR_VERSION;
109 fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
110 fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
111 ((u64) hba->hash_tbl_pbl_dma >> 32);
113 fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
114 fcoe_init2.t2_hash_tbl_addr_hi = (u32)
115 ((u64) hba->t2_hash_tbl_dma >> 32);
117 fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
118 fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
119 ((u64) hba->t2_hash_tbl_ptr_dma >> 32);
121 fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
123 /* fill init3 KWQE */
124 memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
125 fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
126 fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
127 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
128 fcoe_init3.error_bit_map_lo = 0xffffffff;
129 fcoe_init3.error_bit_map_hi = 0xffffffff;
132 * enable both cached connection and cached tasks
133 * 0 = none, 1 = cached connection, 2 = cached tasks, 3 = both
135 fcoe_init3.perf_config = 3;
137 kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
138 kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
139 kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
141 if (hba->cnic && hba->cnic->submit_kwqes)
142 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
146 int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
148 struct fcoe_kwqe_destroy fcoe_destroy;
149 struct kwqe *kwqe_arr[2];
153 /* fill destroy KWQE */
154 memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
155 fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
156 fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
157 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
158 kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
160 if (hba->cnic && hba->cnic->submit_kwqes)
161 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
166 * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
168 * @port: port structure pointer
169 * @tgt: bnx2fc_rport structure pointer
171 int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
172 struct bnx2fc_rport *tgt)
174 struct fc_lport *lport = port->lport;
175 struct bnx2fc_interface *interface = port->priv;
176 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
177 struct bnx2fc_hba *hba = interface->hba;
178 struct kwqe *kwqe_arr[4];
179 struct fcoe_kwqe_conn_offload1 ofld_req1;
180 struct fcoe_kwqe_conn_offload2 ofld_req2;
181 struct fcoe_kwqe_conn_offload3 ofld_req3;
182 struct fcoe_kwqe_conn_offload4 ofld_req4;
183 struct fc_rport_priv *rdata = tgt->rdata;
184 struct fc_rport *rport = tgt->rport;
190 /* Initialize offload request 1 structure */
191 memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
193 ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
194 ofld_req1.hdr.flags =
195 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
198 conn_id = (u16)tgt->fcoe_conn_id;
199 ofld_req1.fcoe_conn_id = conn_id;
202 ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
203 ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
205 ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
206 ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
208 ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
209 ofld_req1.rq_first_pbe_addr_hi =
210 (u32)((u64) tgt->rq_dma >> 32);
212 ofld_req1.rq_prod = 0x8000;
214 /* Initialize offload request 2 structure */
215 memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
217 ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
218 ofld_req2.hdr.flags =
219 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
221 ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
223 ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
224 ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
226 ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
227 ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
229 ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
230 ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
232 /* Initialize offload request 3 structure */
233 memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
235 ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
236 ofld_req3.hdr.flags =
237 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
239 ofld_req3.vlan_tag = interface->vlan_id <<
240 FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
241 ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
243 port_id = fc_host_port_id(lport->host);
245 BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
250 * Store s_id of the initiator for further reference. This will
251 * be used during disable/destroy during linkdown processing as
252 * when the lport is reset, the port_id also is reset to 0
255 ofld_req3.s_id[0] = (port_id & 0x000000FF);
256 ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
257 ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
259 port_id = rport->port_id;
260 ofld_req3.d_id[0] = (port_id & 0x000000FF);
261 ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
262 ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
264 ofld_req3.tx_total_conc_seqs = rdata->max_seq;
266 ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
267 ofld_req3.rx_max_fc_pay_len = lport->mfs;
269 ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
270 ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
271 ofld_req3.rx_open_seqs_exch_c3 = 1;
273 ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
274 ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
276 /* set mul_n_port_ids supported flag to 0, until it is supported */
279 ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
280 FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
282 /* Info from PLOGI response */
283 ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
284 FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
286 ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
287 FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
290 * Info from PRLI response, this info is used for sequence level error
293 if (tgt->dev_type == TYPE_TAPE) {
294 ofld_req3.flags |= 1 <<
295 FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT;
296 ofld_req3.flags |= (((rdata->flags & FC_RP_FLAGS_REC_SUPPORTED)
298 FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT);
302 ofld_req3.flags |= (interface->vlan_enabled <<
303 FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
305 /* C2_VALID and ACK flags are not set as they are not supported */
308 /* Initialize offload request 4 structure */
309 memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
310 ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
311 ofld_req4.hdr.flags =
312 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
314 ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
317 ofld_req4.src_mac_addr_lo[0] = port->data_src_addr[5];
319 ofld_req4.src_mac_addr_lo[1] = port->data_src_addr[4];
320 ofld_req4.src_mac_addr_mid[0] = port->data_src_addr[3];
321 ofld_req4.src_mac_addr_mid[1] = port->data_src_addr[2];
322 ofld_req4.src_mac_addr_hi[0] = port->data_src_addr[1];
323 ofld_req4.src_mac_addr_hi[1] = port->data_src_addr[0];
324 ofld_req4.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
326 ofld_req4.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
327 ofld_req4.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
328 ofld_req4.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
329 ofld_req4.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
330 ofld_req4.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
332 ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
333 ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
335 ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
336 ofld_req4.confq_pbl_base_addr_hi =
337 (u32)((u64) tgt->confq_pbl_dma >> 32);
339 kwqe_arr[0] = (struct kwqe *) &ofld_req1;
340 kwqe_arr[1] = (struct kwqe *) &ofld_req2;
341 kwqe_arr[2] = (struct kwqe *) &ofld_req3;
342 kwqe_arr[3] = (struct kwqe *) &ofld_req4;
344 if (hba->cnic && hba->cnic->submit_kwqes)
345 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
351 * bnx2fc_send_session_enable_req - initiates FCoE Session enablement
353 * @port: port structure pointer
354 * @tgt: bnx2fc_rport structure pointer
356 int bnx2fc_send_session_enable_req(struct fcoe_port *port,
357 struct bnx2fc_rport *tgt)
359 struct kwqe *kwqe_arr[2];
360 struct bnx2fc_interface *interface = port->priv;
361 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
362 struct bnx2fc_hba *hba = interface->hba;
363 struct fcoe_kwqe_conn_enable_disable enbl_req;
364 struct fc_lport *lport = port->lport;
365 struct fc_rport *rport = tgt->rport;
370 memset(&enbl_req, 0x00,
371 sizeof(struct fcoe_kwqe_conn_enable_disable));
372 enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
374 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
376 enbl_req.src_mac_addr_lo[0] = port->data_src_addr[5];
378 enbl_req.src_mac_addr_lo[1] = port->data_src_addr[4];
379 enbl_req.src_mac_addr_mid[0] = port->data_src_addr[3];
380 enbl_req.src_mac_addr_mid[1] = port->data_src_addr[2];
381 enbl_req.src_mac_addr_hi[0] = port->data_src_addr[1];
382 enbl_req.src_mac_addr_hi[1] = port->data_src_addr[0];
383 memcpy(tgt->src_addr, port->data_src_addr, ETH_ALEN);
385 enbl_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
386 enbl_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
387 enbl_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
388 enbl_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
389 enbl_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
390 enbl_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
392 port_id = fc_host_port_id(lport->host);
393 if (port_id != tgt->sid) {
394 printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
395 "sid = 0x%x\n", port_id, tgt->sid);
398 enbl_req.s_id[0] = (port_id & 0x000000FF);
399 enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
400 enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
402 port_id = rport->port_id;
403 enbl_req.d_id[0] = (port_id & 0x000000FF);
404 enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
405 enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
406 enbl_req.vlan_tag = interface->vlan_id <<
407 FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
408 enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
409 enbl_req.vlan_flag = interface->vlan_enabled;
410 enbl_req.context_id = tgt->context_id;
411 enbl_req.conn_id = tgt->fcoe_conn_id;
413 kwqe_arr[0] = (struct kwqe *) &enbl_req;
415 if (hba->cnic && hba->cnic->submit_kwqes)
416 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
421 * bnx2fc_send_session_disable_req - initiates FCoE Session disable
423 * @port: port structure pointer
424 * @tgt: bnx2fc_rport structure pointer
426 int bnx2fc_send_session_disable_req(struct fcoe_port *port,
427 struct bnx2fc_rport *tgt)
429 struct bnx2fc_interface *interface = port->priv;
430 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
431 struct bnx2fc_hba *hba = interface->hba;
432 struct fcoe_kwqe_conn_enable_disable disable_req;
433 struct kwqe *kwqe_arr[2];
434 struct fc_rport *rport = tgt->rport;
439 memset(&disable_req, 0x00,
440 sizeof(struct fcoe_kwqe_conn_enable_disable));
441 disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
442 disable_req.hdr.flags =
443 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
445 disable_req.src_mac_addr_lo[0] = tgt->src_addr[5];
446 disable_req.src_mac_addr_lo[1] = tgt->src_addr[4];
447 disable_req.src_mac_addr_mid[0] = tgt->src_addr[3];
448 disable_req.src_mac_addr_mid[1] = tgt->src_addr[2];
449 disable_req.src_mac_addr_hi[0] = tgt->src_addr[1];
450 disable_req.src_mac_addr_hi[1] = tgt->src_addr[0];
452 disable_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
453 disable_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
454 disable_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
455 disable_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
456 disable_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
457 disable_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
460 disable_req.s_id[0] = (port_id & 0x000000FF);
461 disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
462 disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
465 port_id = rport->port_id;
466 disable_req.d_id[0] = (port_id & 0x000000FF);
467 disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
468 disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
469 disable_req.context_id = tgt->context_id;
470 disable_req.conn_id = tgt->fcoe_conn_id;
471 disable_req.vlan_tag = interface->vlan_id <<
472 FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
473 disable_req.vlan_tag |=
474 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
475 disable_req.vlan_flag = interface->vlan_enabled;
477 kwqe_arr[0] = (struct kwqe *) &disable_req;
479 if (hba->cnic && hba->cnic->submit_kwqes)
480 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
486 * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
488 * @port: port structure pointer
489 * @tgt: bnx2fc_rport structure pointer
491 int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
492 struct bnx2fc_rport *tgt)
494 struct fcoe_kwqe_conn_destroy destroy_req;
495 struct kwqe *kwqe_arr[2];
499 memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
500 destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
501 destroy_req.hdr.flags =
502 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
504 destroy_req.context_id = tgt->context_id;
505 destroy_req.conn_id = tgt->fcoe_conn_id;
507 kwqe_arr[0] = (struct kwqe *) &destroy_req;
509 if (hba->cnic && hba->cnic->submit_kwqes)
510 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
515 static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport)
517 struct bnx2fc_lport *blport;
519 spin_lock_bh(&hba->hba_lock);
520 list_for_each_entry(blport, &hba->vports, list) {
521 if (blport->lport == lport) {
522 spin_unlock_bh(&hba->hba_lock);
526 spin_unlock_bh(&hba->hba_lock);
532 static void bnx2fc_unsol_els_work(struct work_struct *work)
534 struct bnx2fc_unsol_els *unsol_els;
535 struct fc_lport *lport;
536 struct bnx2fc_hba *hba;
539 unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
540 lport = unsol_els->lport;
542 hba = unsol_els->hba;
543 if (is_valid_lport(hba, lport))
544 fc_exch_recv(lport, fp);
548 void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
550 u32 frame_len, u16 l2_oxid)
552 struct fcoe_port *port = tgt->port;
553 struct fc_lport *lport = port->lport;
554 struct bnx2fc_interface *interface = port->priv;
555 struct bnx2fc_unsol_els *unsol_els;
556 struct fc_frame_header *fh;
564 unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
566 BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
570 BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
573 payload_len = frame_len - sizeof(struct fc_frame_header);
575 fp = fc_frame_alloc(lport, payload_len);
577 printk(KERN_ERR PFX "fc_frame_alloc failure\n");
582 fh = (struct fc_frame_header *) fc_frame_header_get(fp);
583 /* Copy FC Frame header and payload into the frame */
584 memcpy(fh, buf, frame_len);
586 if (l2_oxid != FC_XID_UNKNOWN)
587 fh->fh_ox_id = htons(l2_oxid);
591 if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
592 (fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
594 if (fh->fh_type == FC_TYPE_ELS) {
595 op = fc_frame_payload_op(fp);
596 if ((op == ELS_TEST) || (op == ELS_ESTC) ||
597 (op == ELS_FAN) || (op == ELS_CSU)) {
599 * No need to reply for these
602 printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
608 crc = fcoe_fc_crc(fp);
611 fr_sof(fp) = FC_SOF_I3;
612 fr_eof(fp) = FC_EOF_T;
613 fr_crc(fp) = cpu_to_le32(~crc);
614 unsol_els->lport = lport;
615 unsol_els->hba = interface->hba;
617 INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
618 queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
620 BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
626 static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
629 struct fcoe_err_report_entry *err_entry;
630 unsigned char *rq_data;
631 unsigned char *buf = NULL, *buf1;
635 struct bnx2fc_cmd *io_req = NULL;
636 struct fcoe_task_ctx_entry *task, *task_page;
637 struct bnx2fc_interface *interface = tgt->port->priv;
638 struct bnx2fc_hba *hba = interface->hba;
641 u64 err_warn_bit_map;
645 BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
646 switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
647 case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
648 frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
649 FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
651 num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
653 spin_lock_bh(&tgt->tgt_lock);
654 rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
655 spin_unlock_bh(&tgt->tgt_lock);
660 buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
664 BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
668 for (i = 0; i < num_rq; i++) {
669 spin_lock_bh(&tgt->tgt_lock);
670 rq_data = (unsigned char *)
671 bnx2fc_get_next_rqe(tgt, 1);
672 spin_unlock_bh(&tgt->tgt_lock);
673 len = BNX2FC_RQ_BUF_SZ;
674 memcpy(buf1, rq_data, len);
678 bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
683 spin_lock_bh(&tgt->tgt_lock);
684 bnx2fc_return_rqe(tgt, num_rq);
685 spin_unlock_bh(&tgt->tgt_lock);
688 case FCOE_ERROR_DETECTION_CQE_TYPE:
690 * In case of error reporting CQE a single RQ entry
693 spin_lock_bh(&tgt->tgt_lock);
695 err_entry = (struct fcoe_err_report_entry *)
696 bnx2fc_get_next_rqe(tgt, 1);
697 xid = err_entry->fc_hdr.ox_id;
698 BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
699 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
700 err_entry->data.err_warn_bitmap_hi,
701 err_entry->data.err_warn_bitmap_lo);
702 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
703 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
706 if (xid > hba->max_xid) {
707 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
712 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
713 index = xid % BNX2FC_TASKS_PER_PAGE;
714 task_page = (struct fcoe_task_ctx_entry *)
715 hba->task_ctx[task_idx];
716 task = &(task_page[index]);
718 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
722 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
723 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
727 if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
728 &io_req->req_flags)) {
729 BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
730 "progress.. ignore unsol err\n");
734 err_warn_bit_map = (u64)
735 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
736 (u64)err_entry->data.err_warn_bitmap_lo;
737 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
738 if (err_warn_bit_map & (u64)((u64)1 << i)) {
745 * If ABTS is already in progress, and FW error is
746 * received after that, do not cancel the timeout_work
747 * and let the error recovery continue by explicitly
748 * logging out the target, when the ABTS eventually
751 if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
752 printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
753 "in ABTS processing\n", xid);
756 BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn);
757 if (tgt->dev_type != TYPE_TAPE)
760 case FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION:
761 case FCOE_ERROR_CODE_DATA_OOO_RO:
762 case FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT:
763 case FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET:
764 case FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ:
765 case FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET:
766 BNX2FC_TGT_DBG(tgt, "REC TOV popped for xid - 0x%x\n",
768 memcpy(&io_req->err_entry, err_entry,
769 sizeof(struct fcoe_err_report_entry));
770 if (!test_bit(BNX2FC_FLAG_SRR_SENT,
771 &io_req->req_flags)) {
772 spin_unlock_bh(&tgt->tgt_lock);
773 rc = bnx2fc_send_rec(io_req);
774 spin_lock_bh(&tgt->tgt_lock);
779 printk(KERN_ERR PFX "SRR in progress\n");
787 set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags);
789 * Cancel the timeout_work, as we received IO
790 * completion with FW error.
792 if (cancel_delayed_work(&io_req->timeout_work))
793 kref_put(&io_req->refcount, bnx2fc_cmd_release);
795 rc = bnx2fc_initiate_abts(io_req);
797 printk(KERN_ERR PFX "err_warn: initiate_abts "
798 "failed xid = 0x%x. issue cleanup\n",
800 bnx2fc_initiate_cleanup(io_req);
803 bnx2fc_return_rqe(tgt, 1);
804 spin_unlock_bh(&tgt->tgt_lock);
807 case FCOE_WARNING_DETECTION_CQE_TYPE:
809 *In case of warning reporting CQE a single RQ entry
812 spin_lock_bh(&tgt->tgt_lock);
814 err_entry = (struct fcoe_err_report_entry *)
815 bnx2fc_get_next_rqe(tgt, 1);
816 xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
817 BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
818 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
819 err_entry->data.err_warn_bitmap_hi,
820 err_entry->data.err_warn_bitmap_lo);
821 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
822 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
824 if (xid > hba->max_xid) {
825 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid);
829 err_warn_bit_map = (u64)
830 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
831 (u64)err_entry->data.err_warn_bitmap_lo;
832 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
833 if (err_warn_bit_map & (u64) (1 << i)) {
838 BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn);
840 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
841 index = xid % BNX2FC_TASKS_PER_PAGE;
842 task_page = (struct fcoe_task_ctx_entry *)
843 interface->hba->task_ctx[task_idx];
844 task = &(task_page[index]);
845 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
849 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
850 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
854 memcpy(&io_req->err_entry, err_entry,
855 sizeof(struct fcoe_err_report_entry));
857 if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION)
858 /* REC_TOV is not a warning code */
861 BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n");
863 bnx2fc_return_rqe(tgt, 1);
864 spin_unlock_bh(&tgt->tgt_lock);
868 printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
873 void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe)
875 struct fcoe_task_ctx_entry *task;
876 struct fcoe_task_ctx_entry *task_page;
877 struct fcoe_port *port = tgt->port;
878 struct bnx2fc_interface *interface = port->priv;
879 struct bnx2fc_hba *hba = interface->hba;
880 struct bnx2fc_cmd *io_req;
887 spin_lock_bh(&tgt->tgt_lock);
888 xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
889 if (xid >= hba->max_tasks) {
890 printk(KERN_ERR PFX "ERROR:xid out of range\n");
891 spin_unlock_bh(&tgt->tgt_lock);
894 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
895 index = xid % BNX2FC_TASKS_PER_PAGE;
896 task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
897 task = &(task_page[index]);
899 num_rq = ((task->rxwr_txrd.var_ctx.rx_flags &
900 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE) >>
901 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT);
903 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
905 if (io_req == NULL) {
906 printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
907 spin_unlock_bh(&tgt->tgt_lock);
911 /* Timestamp IO completion time */
912 cmd_type = io_req->cmd_type;
914 rx_state = ((task->rxwr_txrd.var_ctx.rx_flags &
915 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE) >>
916 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT);
918 /* Process other IO completion types */
920 case BNX2FC_SCSI_CMD:
921 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
922 bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq);
923 spin_unlock_bh(&tgt->tgt_lock);
927 if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
928 bnx2fc_process_abts_compl(io_req, task, num_rq);
930 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
931 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
933 printk(KERN_ERR PFX "Invalid rx state - %d\n",
937 case BNX2FC_TASK_MGMT_CMD:
938 BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
939 bnx2fc_process_tm_compl(io_req, task, num_rq);
944 * ABTS request received by firmware. ABTS response
945 * will be delivered to the task belonging to the IO
948 BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
949 kref_put(&io_req->refcount, bnx2fc_cmd_release);
953 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED)
954 bnx2fc_process_els_compl(io_req, task, num_rq);
955 else if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
956 bnx2fc_process_abts_compl(io_req, task, num_rq);
958 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
959 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
961 printk(KERN_ERR PFX "Invalid rx state = %d\n",
966 BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
967 kref_put(&io_req->refcount, bnx2fc_cmd_release);
970 case BNX2FC_SEQ_CLEANUP:
971 BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n",
973 bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state);
974 kref_put(&io_req->refcount, bnx2fc_cmd_release);
978 printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
981 spin_unlock_bh(&tgt->tgt_lock);
984 void bnx2fc_arm_cq(struct bnx2fc_rport *tgt)
986 struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
990 rx_db->doorbell_cq_cons = tgt->cq_cons_idx | (tgt->cq_curr_toggle_bit <<
991 FCOE_CQE_TOGGLE_BIT_SHIFT);
992 msg = *((u32 *)rx_db);
993 writel(cpu_to_le32(msg), tgt->ctx_base);
998 static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
1000 struct bnx2fc_work *work;
1001 work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
1005 INIT_LIST_HEAD(&work->list);
1011 int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
1013 struct fcoe_cqe *cq;
1015 struct fcoe_cqe *cqe;
1016 u32 num_free_sqes = 0;
1021 * cq_lock is a low contention lock used to protect
1022 * the CQ data structure from being freed up during
1023 * the upload operation
1025 spin_lock_bh(&tgt->cq_lock);
1028 printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
1029 spin_unlock_bh(&tgt->cq_lock);
1033 cq_cons = tgt->cq_cons_idx;
1036 while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
1037 (tgt->cq_curr_toggle_bit <<
1038 FCOE_CQE_TOGGLE_BIT_SHIFT)) {
1040 /* new entry on the cq */
1041 if (wqe & FCOE_CQE_CQE_TYPE) {
1042 /* Unsolicited event notification */
1043 bnx2fc_process_unsol_compl(tgt, wqe);
1045 /* Pending work request completion */
1046 struct bnx2fc_work *work = NULL;
1047 struct bnx2fc_percpu_s *fps = NULL;
1048 unsigned int cpu = wqe % num_possible_cpus();
1050 fps = &per_cpu(bnx2fc_percpu, cpu);
1051 spin_lock_bh(&fps->fp_work_lock);
1052 if (unlikely(!fps->iothread))
1055 work = bnx2fc_alloc_work(tgt, wqe);
1057 list_add_tail(&work->list,
1060 spin_unlock_bh(&fps->fp_work_lock);
1062 /* Pending work request completion */
1063 if (fps->iothread && work)
1064 wake_up_process(fps->iothread);
1066 bnx2fc_process_cq_compl(tgt, wqe);
1073 if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
1074 tgt->cq_cons_idx = 0;
1076 tgt->cq_curr_toggle_bit =
1077 1 - tgt->cq_curr_toggle_bit;
1081 /* Arm CQ only if doorbell is mapped */
1084 atomic_add(num_free_sqes, &tgt->free_sqes);
1086 spin_unlock_bh(&tgt->cq_lock);
1091 * bnx2fc_fastpath_notification - process global event queue (KCQ)
1093 * @hba: adapter structure pointer
1094 * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
1096 * Fast path event notification handler
1098 static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
1099 struct fcoe_kcqe *new_cqe_kcqe)
1101 u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
1102 struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
1105 printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id);
1109 bnx2fc_process_new_cqes(tgt);
1113 * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
1115 * @hba: adapter structure pointer
1116 * @ofld_kcqe: connection offload kcqe pointer
1118 * handle session offload completion, enable the session if offload is
1121 static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
1122 struct fcoe_kcqe *ofld_kcqe)
1124 struct bnx2fc_rport *tgt;
1125 struct fcoe_port *port;
1126 struct bnx2fc_interface *interface;
1130 conn_id = ofld_kcqe->fcoe_conn_id;
1131 context_id = ofld_kcqe->fcoe_conn_context_id;
1132 tgt = hba->tgt_ofld_list[conn_id];
1134 printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
1137 BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
1138 ofld_kcqe->fcoe_conn_context_id);
1140 interface = tgt->port->priv;
1141 if (hba != interface->hba) {
1142 printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mis-match\n");
1146 * cnic has allocated a context_id for this session; use this
1147 * while enabling the session.
1149 tgt->context_id = context_id;
1150 if (ofld_kcqe->completion_status) {
1151 if (ofld_kcqe->completion_status ==
1152 FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
1153 printk(KERN_ERR PFX "unable to allocate FCoE context "
1155 set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
1158 /* FW offload request successfully completed */
1159 set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
1162 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1163 wake_up_interruptible(&tgt->ofld_wait);
1167 * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
1169 * @hba: adapter structure pointer
1170 * @ofld_kcqe: connection offload kcqe pointer
1172 * handle session enable completion, mark the rport as ready
1175 static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
1176 struct fcoe_kcqe *ofld_kcqe)
1178 struct bnx2fc_rport *tgt;
1179 struct bnx2fc_interface *interface;
1183 context_id = ofld_kcqe->fcoe_conn_context_id;
1184 conn_id = ofld_kcqe->fcoe_conn_id;
1185 tgt = hba->tgt_ofld_list[conn_id];
1187 printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n");
1191 BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
1192 ofld_kcqe->fcoe_conn_context_id);
1195 * context_id should be the same for this target during offload
1198 if (tgt->context_id != context_id) {
1199 printk(KERN_ERR PFX "context id mis-match\n");
1202 interface = tgt->port->priv;
1203 if (hba != interface->hba) {
1204 printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
1207 if (!ofld_kcqe->completion_status)
1208 /* enable successful - rport ready for issuing IOs */
1209 set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
1212 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1213 wake_up_interruptible(&tgt->ofld_wait);
1216 static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
1217 struct fcoe_kcqe *disable_kcqe)
1220 struct bnx2fc_rport *tgt;
1223 conn_id = disable_kcqe->fcoe_conn_id;
1224 tgt = hba->tgt_ofld_list[conn_id];
1226 printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n");
1230 BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
1232 if (disable_kcqe->completion_status) {
1233 printk(KERN_ERR PFX "Disable failed with cmpl status %d\n",
1234 disable_kcqe->completion_status);
1235 set_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags);
1236 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1237 wake_up_interruptible(&tgt->upld_wait);
1239 /* disable successful */
1240 BNX2FC_TGT_DBG(tgt, "disable successful\n");
1241 clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
1242 clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
1243 set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1244 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1245 wake_up_interruptible(&tgt->upld_wait);
1249 static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
1250 struct fcoe_kcqe *destroy_kcqe)
1252 struct bnx2fc_rport *tgt;
1255 conn_id = destroy_kcqe->fcoe_conn_id;
1256 tgt = hba->tgt_ofld_list[conn_id];
1258 printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n");
1262 BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
1264 if (destroy_kcqe->completion_status) {
1265 printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n",
1266 destroy_kcqe->completion_status);
1269 /* destroy successful */
1270 BNX2FC_TGT_DBG(tgt, "upload successful\n");
1271 clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1272 set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
1273 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1274 wake_up_interruptible(&tgt->upld_wait);
1278 static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
1281 case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
1282 printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
1285 case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
1286 printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
1289 case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
1290 printk(KERN_ERR PFX "init_failure due to NIC error\n");
1292 case FCOE_KCQE_COMPLETION_STATUS_ERROR:
1293 printk(KERN_ERR PFX "init failure due to compl status err\n");
1295 case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION:
1296 printk(KERN_ERR PFX "init failure due to HSI mismatch\n");
1299 printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
1304 * bnx2fc_indicae_kcqe - process KCQE
1306 * @hba: adapter structure pointer
1307 * @kcqe: kcqe pointer
1308 * @num_cqe: Number of completion queue elements
1310 * Generic KCQ event handler
1312 void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
1315 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
1317 struct fcoe_kcqe *kcqe = NULL;
1319 while (i < num_cqe) {
1320 kcqe = (struct fcoe_kcqe *) kcq[i++];
1322 switch (kcqe->op_code) {
1323 case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
1324 bnx2fc_fastpath_notification(hba, kcqe);
1327 case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
1328 bnx2fc_process_ofld_cmpl(hba, kcqe);
1331 case FCOE_KCQE_OPCODE_ENABLE_CONN:
1332 bnx2fc_process_enable_conn_cmpl(hba, kcqe);
1335 case FCOE_KCQE_OPCODE_INIT_FUNC:
1336 if (kcqe->completion_status !=
1337 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1338 bnx2fc_init_failure(hba,
1339 kcqe->completion_status);
1341 set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1342 bnx2fc_get_link_state(hba);
1343 printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
1344 (u8)hba->pcidev->bus->number);
1348 case FCOE_KCQE_OPCODE_DESTROY_FUNC:
1349 if (kcqe->completion_status !=
1350 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1352 printk(KERN_ERR PFX "DESTROY failed\n");
1354 printk(KERN_ERR PFX "DESTROY success\n");
1356 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1357 wake_up_interruptible(&hba->destroy_wait);
1360 case FCOE_KCQE_OPCODE_DISABLE_CONN:
1361 bnx2fc_process_conn_disable_cmpl(hba, kcqe);
1364 case FCOE_KCQE_OPCODE_DESTROY_CONN:
1365 bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
1368 case FCOE_KCQE_OPCODE_STAT_FUNC:
1369 if (kcqe->completion_status !=
1370 FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
1371 printk(KERN_ERR PFX "STAT failed\n");
1372 complete(&hba->stat_req_done);
1375 case FCOE_KCQE_OPCODE_FCOE_ERROR:
1378 printk(KERN_ERR PFX "unknown opcode 0x%x\n",
1384 void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
1386 struct fcoe_sqe *sqe;
1388 sqe = &tgt->sq[tgt->sq_prod_idx];
1391 sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
1392 sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
1394 /* Advance SQ Prod Idx */
1395 if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
1396 tgt->sq_prod_idx = 0;
1397 tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
1401 void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
1403 struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
1407 sq_db->prod = tgt->sq_prod_idx |
1408 (tgt->sq_curr_toggle_bit << 15);
1409 msg = *((u32 *)sq_db);
1410 writel(cpu_to_le32(msg), tgt->ctx_base);
1415 int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
1417 u32 context_id = tgt->context_id;
1418 struct fcoe_port *port = tgt->port;
1420 resource_size_t reg_base;
1421 struct bnx2fc_interface *interface = port->priv;
1422 struct bnx2fc_hba *hba = interface->hba;
1424 reg_base = pci_resource_start(hba->pcidev,
1425 BNX2X_DOORBELL_PCI_BAR);
1426 reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
1427 tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4);
1433 char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1435 char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
1437 if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
1440 tgt->rq_cons_idx += num_items;
1442 if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
1443 tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
1448 void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1450 /* return the rq buffer */
1451 u32 next_prod_idx = tgt->rq_prod_idx + num_items;
1452 if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
1453 /* Wrap around RQ */
1454 next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
1456 tgt->rq_prod_idx = next_prod_idx;
1457 tgt->conn_db->rq_prod = tgt->rq_prod_idx;
1460 void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req,
1461 struct fcoe_task_ctx_entry *task,
1462 struct bnx2fc_cmd *orig_io_req,
1465 struct scsi_cmnd *sc_cmd = orig_io_req->sc_cmd;
1466 struct bnx2fc_rport *tgt = seq_clnp_req->tgt;
1467 struct bnx2fc_interface *interface = tgt->port->priv;
1468 struct fcoe_bd_ctx *bd = orig_io_req->bd_tbl->bd_tbl;
1469 struct fcoe_task_ctx_entry *orig_task;
1470 struct fcoe_task_ctx_entry *task_page;
1471 struct fcoe_ext_mul_sges_ctx *sgl;
1472 u8 task_type = FCOE_TASK_TYPE_SEQUENCE_CLEANUP;
1474 u16 orig_xid = orig_io_req->xid;
1475 u32 context_id = tgt->context_id;
1476 u64 phys_addr = (u64)orig_io_req->bd_tbl->bd_tbl_dma;
1477 u32 orig_offset = offset;
1479 int orig_task_idx, index;
1482 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1484 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1485 orig_task_type = FCOE_TASK_TYPE_WRITE;
1487 orig_task_type = FCOE_TASK_TYPE_READ;
1490 task->txwr_rxrd.const_ctx.tx_flags =
1491 FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP <<
1492 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1494 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1495 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1496 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1497 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1498 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1499 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1500 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1501 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1503 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
1505 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_seq_cnt = 0;
1506 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_data_offset = offset;
1508 bd_count = orig_io_req->bd_tbl->bd_valid;
1510 /* obtain the appropriate bd entry from relative offset */
1511 for (i = 0; i < bd_count; i++) {
1512 if (offset < bd[i].buf_len)
1514 offset -= bd[i].buf_len;
1516 phys_addr += (i * sizeof(struct fcoe_bd_ctx));
1518 if (orig_task_type == FCOE_TASK_TYPE_WRITE) {
1519 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1521 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1522 (u32)((u64)phys_addr >> 32);
1523 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1525 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_off =
1526 offset; /* adjusted offset */
1527 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_idx = i;
1529 orig_task_idx = orig_xid / BNX2FC_TASKS_PER_PAGE;
1530 index = orig_xid % BNX2FC_TASKS_PER_PAGE;
1532 task_page = (struct fcoe_task_ctx_entry *)
1533 interface->hba->task_ctx[orig_task_idx];
1534 orig_task = &(task_page[index]);
1536 /* Multiple SGEs were used for this IO */
1537 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1538 sgl->mul_sgl.cur_sge_addr.lo = (u32)phys_addr;
1539 sgl->mul_sgl.cur_sge_addr.hi = (u32)((u64)phys_addr >> 32);
1540 sgl->mul_sgl.sgl_size = bd_count;
1541 sgl->mul_sgl.cur_sge_off = offset; /*adjusted offset */
1542 sgl->mul_sgl.cur_sge_idx = i;
1544 memset(&task->rxwr_only.rx_seq_ctx, 0,
1545 sizeof(struct fcoe_rx_seq_ctx));
1546 task->rxwr_only.rx_seq_ctx.low_exp_ro = orig_offset;
1547 task->rxwr_only.rx_seq_ctx.high_exp_ro = orig_offset;
1550 void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
1551 struct fcoe_task_ctx_entry *task,
1554 u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
1555 struct bnx2fc_rport *tgt = io_req->tgt;
1556 u32 context_id = tgt->context_id;
1558 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1560 /* Tx Write Rx Read */
1562 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1563 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1564 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1565 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1566 if (tgt->dev_type == TYPE_TAPE)
1567 task->txwr_rxrd.const_ctx.init_flags |=
1568 FCOE_TASK_DEV_TYPE_TAPE <<
1569 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1571 task->txwr_rxrd.const_ctx.init_flags |=
1572 FCOE_TASK_DEV_TYPE_DISK <<
1573 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1574 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
1577 task->txwr_rxrd.const_ctx.tx_flags =
1578 FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
1579 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1581 /* Rx Read Tx Write */
1582 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1583 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1584 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1585 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1588 void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
1589 struct fcoe_task_ctx_entry *task)
1591 struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
1592 struct bnx2fc_rport *tgt = io_req->tgt;
1593 struct fc_frame_header *fc_hdr;
1594 struct fcoe_ext_mul_sges_ctx *sgl;
1601 /* Obtain task_type */
1602 if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
1603 (io_req->cmd_type == BNX2FC_ELS)) {
1604 task_type = FCOE_TASK_TYPE_MIDPATH;
1605 } else if (io_req->cmd_type == BNX2FC_ABTS) {
1606 task_type = FCOE_TASK_TYPE_ABTS;
1609 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1611 /* Setup the task from io_req for easy reference */
1612 io_req->task = task;
1614 BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
1615 io_req->cmd_type, task_type);
1618 if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
1619 (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
1620 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1621 (u32)mp_req->mp_req_bd_dma;
1622 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1623 (u32)((u64)mp_req->mp_req_bd_dma >> 32);
1624 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size = 1;
1627 /* Tx Write Rx Read */
1629 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1630 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1631 if (tgt->dev_type == TYPE_TAPE)
1632 task->txwr_rxrd.const_ctx.init_flags |=
1633 FCOE_TASK_DEV_TYPE_TAPE <<
1634 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1636 task->txwr_rxrd.const_ctx.init_flags |=
1637 FCOE_TASK_DEV_TYPE_DISK <<
1638 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1639 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1640 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1643 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT <<
1644 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1646 /* Rx Write Tx Read */
1647 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1650 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1651 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1653 context_id = tgt->context_id;
1654 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1655 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1657 fc_hdr = &(mp_req->req_fc_hdr);
1658 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
1659 fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
1660 fc_hdr->fh_rx_id = htons(0xffff);
1661 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
1662 } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
1663 fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
1666 /* Fill FC Header into middle path buffer */
1667 hdr = (u64 *) &task->txwr_rxrd.union_ctx.tx_frame.fc_hdr;
1668 memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
1669 hdr[0] = cpu_to_be64(temp_hdr[0]);
1670 hdr[1] = cpu_to_be64(temp_hdr[1]);
1671 hdr[2] = cpu_to_be64(temp_hdr[2]);
1674 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
1675 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1677 sgl->mul_sgl.cur_sge_addr.lo = (u32)mp_req->mp_resp_bd_dma;
1678 sgl->mul_sgl.cur_sge_addr.hi =
1679 (u32)((u64)mp_req->mp_resp_bd_dma >> 32);
1680 sgl->mul_sgl.sgl_size = 1;
1684 void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
1685 struct fcoe_task_ctx_entry *task)
1688 struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
1689 struct io_bdt *bd_tbl = io_req->bd_tbl;
1690 struct bnx2fc_rport *tgt = io_req->tgt;
1691 struct fcoe_cached_sge_ctx *cached_sge;
1692 struct fcoe_ext_mul_sges_ctx *sgl;
1693 int dev_type = tgt->dev_type;
1695 u64 tmp_fcp_cmnd[4];
1700 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1702 /* Setup the task from io_req for easy reference */
1703 io_req->task = task;
1705 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1706 task_type = FCOE_TASK_TYPE_WRITE;
1708 task_type = FCOE_TASK_TYPE_READ;
1711 bd_count = bd_tbl->bd_valid;
1712 cached_sge = &task->rxwr_only.union_ctx.read_info.sgl_ctx.cached_sge;
1713 if (task_type == FCOE_TASK_TYPE_WRITE) {
1714 if ((dev_type == TYPE_DISK) && (bd_count == 1)) {
1715 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1717 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.lo =
1718 cached_sge->cur_buf_addr.lo =
1719 fcoe_bd_tbl->buf_addr_lo;
1720 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.hi =
1721 cached_sge->cur_buf_addr.hi =
1722 fcoe_bd_tbl->buf_addr_hi;
1723 task->txwr_only.sgl_ctx.cached_sge.cur_buf_rem =
1724 cached_sge->cur_buf_rem =
1725 fcoe_bd_tbl->buf_len;
1727 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1728 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1730 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1731 (u32)bd_tbl->bd_tbl_dma;
1732 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1733 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1734 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1739 /*Tx Write Rx Read */
1740 /* Init state to NORMAL */
1741 task->txwr_rxrd.const_ctx.init_flags |= task_type <<
1742 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1743 if (dev_type == TYPE_TAPE) {
1744 task->txwr_rxrd.const_ctx.init_flags |=
1745 FCOE_TASK_DEV_TYPE_TAPE <<
1746 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1747 io_req->rec_retry = 0;
1748 io_req->rec_retry = 0;
1750 task->txwr_rxrd.const_ctx.init_flags |=
1751 FCOE_TASK_DEV_TYPE_DISK <<
1752 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1753 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1754 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1756 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
1757 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1759 /* Set initial seq counter */
1760 task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1;
1762 /* Fill FCP_CMND IU */
1764 task->txwr_rxrd.union_ctx.fcp_cmd.opaque;
1765 bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
1768 cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
1770 for (i = 0; i < cnt; i++) {
1771 *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
1775 /* Rx Write Tx Read */
1776 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1778 context_id = tgt->context_id;
1779 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1780 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1783 /* Set state to "waiting for the first packet" */
1784 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1785 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1787 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
1790 if (task_type != FCOE_TASK_TYPE_READ)
1793 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1794 bd_count = bd_tbl->bd_valid;
1796 if (dev_type == TYPE_DISK) {
1797 if (bd_count == 1) {
1799 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1801 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1802 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1803 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1804 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1805 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1806 } else if (bd_count == 2) {
1807 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1809 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1810 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1811 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1814 cached_sge->second_buf_addr.lo =
1815 fcoe_bd_tbl->buf_addr_lo;
1816 cached_sge->second_buf_addr.hi =
1817 fcoe_bd_tbl->buf_addr_hi;
1818 cached_sge->second_buf_rem = fcoe_bd_tbl->buf_len;
1819 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1820 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1823 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1824 sgl->mul_sgl.cur_sge_addr.hi =
1825 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1826 sgl->mul_sgl.sgl_size = bd_count;
1829 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1830 sgl->mul_sgl.cur_sge_addr.hi =
1831 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1832 sgl->mul_sgl.sgl_size = bd_count;
1837 * bnx2fc_setup_task_ctx - allocate and map task context
1839 * @hba: pointer to adapter structure
1841 * allocate memory for task context, and associated BD table to be used
1845 int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
1848 struct regpair *task_ctx_bdt;
1850 int task_ctx_arr_sz;
1854 * Allocate task context bd table. A page size of bd table
1855 * can map 256 buffers. Each buffer contains 32 task context
1856 * entries. Hence the limit with one page is 8192 task context
1859 hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
1861 &hba->task_ctx_bd_dma,
1863 if (!hba->task_ctx_bd_tbl) {
1864 printk(KERN_ERR PFX "unable to allocate task context BDT\n");
1868 memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE);
1871 * Allocate task_ctx which is an array of pointers pointing to
1872 * a page containing 32 task contexts
1874 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
1875 hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)),
1877 if (!hba->task_ctx) {
1878 printk(KERN_ERR PFX "unable to allocate task context array\n");
1884 * Allocate task_ctx_dma which is an array of dma addresses
1886 hba->task_ctx_dma = kmalloc((task_ctx_arr_sz *
1887 sizeof(dma_addr_t)), GFP_KERNEL);
1888 if (!hba->task_ctx_dma) {
1889 printk(KERN_ERR PFX "unable to alloc context mapping array\n");
1894 task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
1895 for (i = 0; i < task_ctx_arr_sz; i++) {
1897 hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
1899 &hba->task_ctx_dma[i],
1901 if (!hba->task_ctx[i]) {
1902 printk(KERN_ERR PFX "unable to alloc task context\n");
1906 memset(hba->task_ctx[i], 0, PAGE_SIZE);
1907 addr = (u64)hba->task_ctx_dma[i];
1908 task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
1909 task_ctx_bdt->lo = cpu_to_le32((u32)addr);
1915 for (i = 0; i < task_ctx_arr_sz; i++) {
1916 if (hba->task_ctx[i]) {
1918 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1919 hba->task_ctx[i], hba->task_ctx_dma[i]);
1920 hba->task_ctx[i] = NULL;
1924 kfree(hba->task_ctx_dma);
1925 hba->task_ctx_dma = NULL;
1927 kfree(hba->task_ctx);
1928 hba->task_ctx = NULL;
1930 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1931 hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
1932 hba->task_ctx_bd_tbl = NULL;
1937 void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
1939 int task_ctx_arr_sz;
1942 if (hba->task_ctx_bd_tbl) {
1943 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1944 hba->task_ctx_bd_tbl,
1945 hba->task_ctx_bd_dma);
1946 hba->task_ctx_bd_tbl = NULL;
1949 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
1950 if (hba->task_ctx) {
1951 for (i = 0; i < task_ctx_arr_sz; i++) {
1952 if (hba->task_ctx[i]) {
1953 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1955 hba->task_ctx_dma[i]);
1956 hba->task_ctx[i] = NULL;
1959 kfree(hba->task_ctx);
1960 hba->task_ctx = NULL;
1963 kfree(hba->task_ctx_dma);
1964 hba->task_ctx_dma = NULL;
1967 static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
1973 if (hba->hash_tbl_segments) {
1975 pbl = hba->hash_tbl_pbl;
1977 segment_count = hba->hash_tbl_segment_count;
1978 for (i = 0; i < segment_count; ++i) {
1979 dma_addr_t dma_address;
1981 dma_address = le32_to_cpu(*pbl);
1983 dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
1985 dma_free_coherent(&hba->pcidev->dev,
1986 BNX2FC_HASH_TBL_CHUNK_SIZE,
1987 hba->hash_tbl_segments[i],
1992 kfree(hba->hash_tbl_segments);
1993 hba->hash_tbl_segments = NULL;
1996 if (hba->hash_tbl_pbl) {
1997 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1999 hba->hash_tbl_pbl_dma);
2000 hba->hash_tbl_pbl = NULL;
2004 static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
2007 int hash_table_size;
2009 int segment_array_size;
2010 int dma_segment_array_size;
2011 dma_addr_t *dma_segment_array;
2014 hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
2015 sizeof(struct fcoe_hash_table_entry);
2017 segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
2018 segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
2019 hba->hash_tbl_segment_count = segment_count;
2021 segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
2022 hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
2023 if (!hba->hash_tbl_segments) {
2024 printk(KERN_ERR PFX "hash table pointers alloc failed\n");
2027 dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
2028 dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
2029 if (!dma_segment_array) {
2030 printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
2034 for (i = 0; i < segment_count; ++i) {
2035 hba->hash_tbl_segments[i] =
2036 dma_alloc_coherent(&hba->pcidev->dev,
2037 BNX2FC_HASH_TBL_CHUNK_SIZE,
2038 &dma_segment_array[i],
2040 if (!hba->hash_tbl_segments[i]) {
2041 printk(KERN_ERR PFX "hash segment alloc failed\n");
2044 memset(hba->hash_tbl_segments[i], 0,
2045 BNX2FC_HASH_TBL_CHUNK_SIZE);
2048 hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev,
2050 &hba->hash_tbl_pbl_dma,
2052 if (!hba->hash_tbl_pbl) {
2053 printk(KERN_ERR PFX "hash table pbl alloc failed\n");
2056 memset(hba->hash_tbl_pbl, 0, PAGE_SIZE);
2058 pbl = hba->hash_tbl_pbl;
2059 for (i = 0; i < segment_count; ++i) {
2060 u64 paddr = dma_segment_array[i];
2061 *pbl = cpu_to_le32((u32) paddr);
2063 *pbl = cpu_to_le32((u32) (paddr >> 32));
2066 pbl = hba->hash_tbl_pbl;
2068 while (*pbl && *(pbl + 1)) {
2077 kfree(dma_segment_array);
2081 for (i = 0; i < segment_count; ++i) {
2082 if (hba->hash_tbl_segments[i])
2083 dma_free_coherent(&hba->pcidev->dev,
2084 BNX2FC_HASH_TBL_CHUNK_SIZE,
2085 hba->hash_tbl_segments[i],
2086 dma_segment_array[i]);
2089 kfree(dma_segment_array);
2092 kfree(hba->hash_tbl_segments);
2093 hba->hash_tbl_segments = NULL;
2098 * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
2100 * @hba: Pointer to adapter structure
2103 int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
2109 if (bnx2fc_allocate_hash_table(hba))
2112 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
2113 hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2114 &hba->t2_hash_tbl_ptr_dma,
2116 if (!hba->t2_hash_tbl_ptr) {
2117 printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
2118 bnx2fc_free_fw_resc(hba);
2121 memset(hba->t2_hash_tbl_ptr, 0x00, mem_size);
2123 mem_size = BNX2FC_NUM_MAX_SESS *
2124 sizeof(struct fcoe_t2_hash_table_entry);
2125 hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2126 &hba->t2_hash_tbl_dma,
2128 if (!hba->t2_hash_tbl) {
2129 printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
2130 bnx2fc_free_fw_resc(hba);
2133 memset(hba->t2_hash_tbl, 0x00, mem_size);
2134 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
2135 addr = (unsigned long) hba->t2_hash_tbl_dma +
2136 ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
2137 hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
2138 hba->t2_hash_tbl[i].next.hi = addr >> 32;
2141 hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
2142 PAGE_SIZE, &hba->dummy_buf_dma,
2144 if (!hba->dummy_buffer) {
2145 printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
2146 bnx2fc_free_fw_resc(hba);
2150 hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev,
2152 &hba->stats_buf_dma,
2154 if (!hba->stats_buffer) {
2155 printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
2156 bnx2fc_free_fw_resc(hba);
2159 memset(hba->stats_buffer, 0x00, PAGE_SIZE);
2164 void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
2168 if (hba->stats_buffer) {
2169 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2170 hba->stats_buffer, hba->stats_buf_dma);
2171 hba->stats_buffer = NULL;
2174 if (hba->dummy_buffer) {
2175 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2176 hba->dummy_buffer, hba->dummy_buf_dma);
2177 hba->dummy_buffer = NULL;
2180 if (hba->t2_hash_tbl_ptr) {
2181 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
2182 dma_free_coherent(&hba->pcidev->dev, mem_size,
2183 hba->t2_hash_tbl_ptr,
2184 hba->t2_hash_tbl_ptr_dma);
2185 hba->t2_hash_tbl_ptr = NULL;
2188 if (hba->t2_hash_tbl) {
2189 mem_size = BNX2FC_NUM_MAX_SESS *
2190 sizeof(struct fcoe_t2_hash_table_entry);
2191 dma_free_coherent(&hba->pcidev->dev, mem_size,
2192 hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
2193 hba->t2_hash_tbl = NULL;
2195 bnx2fc_free_hash_table(hba);