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 bnx2fc_interface *interface = tgt->port->priv;
637 struct bnx2fc_hba *hba = interface->hba;
640 u64 err_warn_bit_map;
644 BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
645 switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
646 case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
647 frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
648 FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
650 num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
652 spin_lock_bh(&tgt->tgt_lock);
653 rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
654 spin_unlock_bh(&tgt->tgt_lock);
659 buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
663 BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
667 for (i = 0; i < num_rq; i++) {
668 spin_lock_bh(&tgt->tgt_lock);
669 rq_data = (unsigned char *)
670 bnx2fc_get_next_rqe(tgt, 1);
671 spin_unlock_bh(&tgt->tgt_lock);
672 len = BNX2FC_RQ_BUF_SZ;
673 memcpy(buf1, rq_data, len);
677 bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
682 spin_lock_bh(&tgt->tgt_lock);
683 bnx2fc_return_rqe(tgt, num_rq);
684 spin_unlock_bh(&tgt->tgt_lock);
687 case FCOE_ERROR_DETECTION_CQE_TYPE:
689 * In case of error reporting CQE a single RQ entry
692 spin_lock_bh(&tgt->tgt_lock);
694 err_entry = (struct fcoe_err_report_entry *)
695 bnx2fc_get_next_rqe(tgt, 1);
696 xid = err_entry->fc_hdr.ox_id;
697 BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
698 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
699 err_entry->data.err_warn_bitmap_hi,
700 err_entry->data.err_warn_bitmap_lo);
701 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
702 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
705 if (xid > hba->max_xid) {
706 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
711 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
712 index = xid % BNX2FC_TASKS_PER_PAGE;
714 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
718 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
719 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
723 if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
724 &io_req->req_flags)) {
725 BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
726 "progress.. ignore unsol err\n");
730 err_warn_bit_map = (u64)
731 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
732 (u64)err_entry->data.err_warn_bitmap_lo;
733 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
734 if (err_warn_bit_map & (u64)((u64)1 << i)) {
741 * If ABTS is already in progress, and FW error is
742 * received after that, do not cancel the timeout_work
743 * and let the error recovery continue by explicitly
744 * logging out the target, when the ABTS eventually
747 if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
748 printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
749 "in ABTS processing\n", xid);
752 BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn);
753 if (tgt->dev_type != TYPE_TAPE)
756 case FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION:
757 case FCOE_ERROR_CODE_DATA_OOO_RO:
758 case FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT:
759 case FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET:
760 case FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ:
761 case FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET:
762 BNX2FC_TGT_DBG(tgt, "REC TOV popped for xid - 0x%x\n",
764 memcpy(&io_req->err_entry, err_entry,
765 sizeof(struct fcoe_err_report_entry));
766 if (!test_bit(BNX2FC_FLAG_SRR_SENT,
767 &io_req->req_flags)) {
768 spin_unlock_bh(&tgt->tgt_lock);
769 rc = bnx2fc_send_rec(io_req);
770 spin_lock_bh(&tgt->tgt_lock);
775 printk(KERN_ERR PFX "SRR in progress\n");
783 set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags);
785 * Cancel the timeout_work, as we received IO
786 * completion with FW error.
788 if (cancel_delayed_work(&io_req->timeout_work))
789 kref_put(&io_req->refcount, bnx2fc_cmd_release);
791 rc = bnx2fc_initiate_abts(io_req);
793 printk(KERN_ERR PFX "err_warn: initiate_abts "
794 "failed xid = 0x%x. issue cleanup\n",
796 bnx2fc_initiate_cleanup(io_req);
799 bnx2fc_return_rqe(tgt, 1);
800 spin_unlock_bh(&tgt->tgt_lock);
803 case FCOE_WARNING_DETECTION_CQE_TYPE:
805 *In case of warning reporting CQE a single RQ entry
808 spin_lock_bh(&tgt->tgt_lock);
810 err_entry = (struct fcoe_err_report_entry *)
811 bnx2fc_get_next_rqe(tgt, 1);
812 xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
813 BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
814 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
815 err_entry->data.err_warn_bitmap_hi,
816 err_entry->data.err_warn_bitmap_lo);
817 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
818 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
820 if (xid > hba->max_xid) {
821 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid);
825 err_warn_bit_map = (u64)
826 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
827 (u64)err_entry->data.err_warn_bitmap_lo;
828 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
829 if (err_warn_bit_map & ((u64)1 << i)) {
834 BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn);
836 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
837 index = xid % BNX2FC_TASKS_PER_PAGE;
838 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
842 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
843 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
847 memcpy(&io_req->err_entry, err_entry,
848 sizeof(struct fcoe_err_report_entry));
850 if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION)
851 /* REC_TOV is not a warning code */
854 BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n");
856 bnx2fc_return_rqe(tgt, 1);
857 spin_unlock_bh(&tgt->tgt_lock);
861 printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
866 void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe)
868 struct fcoe_task_ctx_entry *task;
869 struct fcoe_task_ctx_entry *task_page;
870 struct fcoe_port *port = tgt->port;
871 struct bnx2fc_interface *interface = port->priv;
872 struct bnx2fc_hba *hba = interface->hba;
873 struct bnx2fc_cmd *io_req;
880 spin_lock_bh(&tgt->tgt_lock);
881 xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
882 if (xid >= hba->max_tasks) {
883 printk(KERN_ERR PFX "ERROR:xid out of range\n");
884 spin_unlock_bh(&tgt->tgt_lock);
887 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
888 index = xid % BNX2FC_TASKS_PER_PAGE;
889 task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
890 task = &(task_page[index]);
892 num_rq = ((task->rxwr_txrd.var_ctx.rx_flags &
893 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE) >>
894 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT);
896 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
898 if (io_req == NULL) {
899 printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
900 spin_unlock_bh(&tgt->tgt_lock);
904 /* Timestamp IO completion time */
905 cmd_type = io_req->cmd_type;
907 rx_state = ((task->rxwr_txrd.var_ctx.rx_flags &
908 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE) >>
909 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT);
911 /* Process other IO completion types */
913 case BNX2FC_SCSI_CMD:
914 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
915 bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq);
916 spin_unlock_bh(&tgt->tgt_lock);
920 if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
921 bnx2fc_process_abts_compl(io_req, task, num_rq);
923 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
924 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
926 printk(KERN_ERR PFX "Invalid rx state - %d\n",
930 case BNX2FC_TASK_MGMT_CMD:
931 BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
932 bnx2fc_process_tm_compl(io_req, task, num_rq);
937 * ABTS request received by firmware. ABTS response
938 * will be delivered to the task belonging to the IO
941 BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
942 kref_put(&io_req->refcount, bnx2fc_cmd_release);
946 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED)
947 bnx2fc_process_els_compl(io_req, task, num_rq);
948 else if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
949 bnx2fc_process_abts_compl(io_req, task, num_rq);
951 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
952 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
954 printk(KERN_ERR PFX "Invalid rx state = %d\n",
959 BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
960 kref_put(&io_req->refcount, bnx2fc_cmd_release);
963 case BNX2FC_SEQ_CLEANUP:
964 BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n",
966 bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state);
967 kref_put(&io_req->refcount, bnx2fc_cmd_release);
971 printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
974 spin_unlock_bh(&tgt->tgt_lock);
977 void bnx2fc_arm_cq(struct bnx2fc_rport *tgt)
979 struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
983 rx_db->doorbell_cq_cons = tgt->cq_cons_idx | (tgt->cq_curr_toggle_bit <<
984 FCOE_CQE_TOGGLE_BIT_SHIFT);
985 msg = *((u32 *)rx_db);
986 writel(cpu_to_le32(msg), tgt->ctx_base);
990 static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
992 struct bnx2fc_work *work;
993 work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
997 INIT_LIST_HEAD(&work->list);
1003 /* Pending work request completion */
1004 static void bnx2fc_pending_work(struct bnx2fc_rport *tgt, unsigned int wqe)
1006 unsigned int cpu = wqe % num_possible_cpus();
1007 struct bnx2fc_percpu_s *fps;
1008 struct bnx2fc_work *work;
1010 fps = &per_cpu(bnx2fc_percpu, cpu);
1011 spin_lock_bh(&fps->fp_work_lock);
1012 if (fps->iothread) {
1013 work = bnx2fc_alloc_work(tgt, wqe);
1015 list_add_tail(&work->list, &fps->work_list);
1016 wake_up_process(fps->iothread);
1017 spin_unlock_bh(&fps->fp_work_lock);
1021 spin_unlock_bh(&fps->fp_work_lock);
1022 bnx2fc_process_cq_compl(tgt, wqe);
1025 int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
1027 struct fcoe_cqe *cq;
1029 struct fcoe_cqe *cqe;
1030 u32 num_free_sqes = 0;
1035 * cq_lock is a low contention lock used to protect
1036 * the CQ data structure from being freed up during
1037 * the upload operation
1039 spin_lock_bh(&tgt->cq_lock);
1042 printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
1043 spin_unlock_bh(&tgt->cq_lock);
1047 cq_cons = tgt->cq_cons_idx;
1050 while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
1051 (tgt->cq_curr_toggle_bit <<
1052 FCOE_CQE_TOGGLE_BIT_SHIFT)) {
1054 /* new entry on the cq */
1055 if (wqe & FCOE_CQE_CQE_TYPE) {
1056 /* Unsolicited event notification */
1057 bnx2fc_process_unsol_compl(tgt, wqe);
1059 bnx2fc_pending_work(tgt, wqe);
1066 if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
1067 tgt->cq_cons_idx = 0;
1069 tgt->cq_curr_toggle_bit =
1070 1 - tgt->cq_curr_toggle_bit;
1074 /* Arm CQ only if doorbell is mapped */
1077 atomic_add(num_free_sqes, &tgt->free_sqes);
1079 spin_unlock_bh(&tgt->cq_lock);
1084 * bnx2fc_fastpath_notification - process global event queue (KCQ)
1086 * @hba: adapter structure pointer
1087 * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
1089 * Fast path event notification handler
1091 static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
1092 struct fcoe_kcqe *new_cqe_kcqe)
1094 u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
1095 struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
1098 printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id);
1102 bnx2fc_process_new_cqes(tgt);
1106 * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
1108 * @hba: adapter structure pointer
1109 * @ofld_kcqe: connection offload kcqe pointer
1111 * handle session offload completion, enable the session if offload is
1114 static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
1115 struct fcoe_kcqe *ofld_kcqe)
1117 struct bnx2fc_rport *tgt;
1118 struct bnx2fc_interface *interface;
1122 conn_id = ofld_kcqe->fcoe_conn_id;
1123 context_id = ofld_kcqe->fcoe_conn_context_id;
1124 tgt = hba->tgt_ofld_list[conn_id];
1126 printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
1129 BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
1130 ofld_kcqe->fcoe_conn_context_id);
1131 interface = tgt->port->priv;
1132 if (hba != interface->hba) {
1133 printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mis-match\n");
1137 * cnic has allocated a context_id for this session; use this
1138 * while enabling the session.
1140 tgt->context_id = context_id;
1141 if (ofld_kcqe->completion_status) {
1142 if (ofld_kcqe->completion_status ==
1143 FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
1144 printk(KERN_ERR PFX "unable to allocate FCoE context "
1146 set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
1149 /* FW offload request successfully completed */
1150 set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
1153 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1154 wake_up_interruptible(&tgt->ofld_wait);
1158 * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
1160 * @hba: adapter structure pointer
1161 * @ofld_kcqe: connection offload kcqe pointer
1163 * handle session enable completion, mark the rport as ready
1166 static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
1167 struct fcoe_kcqe *ofld_kcqe)
1169 struct bnx2fc_rport *tgt;
1170 struct bnx2fc_interface *interface;
1174 context_id = ofld_kcqe->fcoe_conn_context_id;
1175 conn_id = ofld_kcqe->fcoe_conn_id;
1176 tgt = hba->tgt_ofld_list[conn_id];
1178 printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n");
1182 BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
1183 ofld_kcqe->fcoe_conn_context_id);
1186 * context_id should be the same for this target during offload
1189 if (tgt->context_id != context_id) {
1190 printk(KERN_ERR PFX "context id mis-match\n");
1193 interface = tgt->port->priv;
1194 if (hba != interface->hba) {
1195 printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
1198 if (!ofld_kcqe->completion_status)
1199 /* enable successful - rport ready for issuing IOs */
1200 set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
1203 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1204 wake_up_interruptible(&tgt->ofld_wait);
1207 static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
1208 struct fcoe_kcqe *disable_kcqe)
1211 struct bnx2fc_rport *tgt;
1214 conn_id = disable_kcqe->fcoe_conn_id;
1215 tgt = hba->tgt_ofld_list[conn_id];
1217 printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n");
1221 BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
1223 if (disable_kcqe->completion_status) {
1224 printk(KERN_ERR PFX "Disable failed with cmpl status %d\n",
1225 disable_kcqe->completion_status);
1226 set_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags);
1227 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1228 wake_up_interruptible(&tgt->upld_wait);
1230 /* disable successful */
1231 BNX2FC_TGT_DBG(tgt, "disable successful\n");
1232 clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
1233 clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
1234 set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1235 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1236 wake_up_interruptible(&tgt->upld_wait);
1240 static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
1241 struct fcoe_kcqe *destroy_kcqe)
1243 struct bnx2fc_rport *tgt;
1246 conn_id = destroy_kcqe->fcoe_conn_id;
1247 tgt = hba->tgt_ofld_list[conn_id];
1249 printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n");
1253 BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
1255 if (destroy_kcqe->completion_status) {
1256 printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n",
1257 destroy_kcqe->completion_status);
1260 /* destroy successful */
1261 BNX2FC_TGT_DBG(tgt, "upload successful\n");
1262 clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1263 set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
1264 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1265 wake_up_interruptible(&tgt->upld_wait);
1269 static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
1272 case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
1273 printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
1276 case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
1277 printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
1280 case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
1281 printk(KERN_ERR PFX "init_failure due to NIC error\n");
1283 case FCOE_KCQE_COMPLETION_STATUS_ERROR:
1284 printk(KERN_ERR PFX "init failure due to compl status err\n");
1286 case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION:
1287 printk(KERN_ERR PFX "init failure due to HSI mismatch\n");
1290 printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
1295 * bnx2fc_indicae_kcqe - process KCQE
1297 * @hba: adapter structure pointer
1298 * @kcqe: kcqe pointer
1299 * @num_cqe: Number of completion queue elements
1301 * Generic KCQ event handler
1303 void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
1306 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
1308 struct fcoe_kcqe *kcqe = NULL;
1310 while (i < num_cqe) {
1311 kcqe = (struct fcoe_kcqe *) kcq[i++];
1313 switch (kcqe->op_code) {
1314 case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
1315 bnx2fc_fastpath_notification(hba, kcqe);
1318 case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
1319 bnx2fc_process_ofld_cmpl(hba, kcqe);
1322 case FCOE_KCQE_OPCODE_ENABLE_CONN:
1323 bnx2fc_process_enable_conn_cmpl(hba, kcqe);
1326 case FCOE_KCQE_OPCODE_INIT_FUNC:
1327 if (kcqe->completion_status !=
1328 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1329 bnx2fc_init_failure(hba,
1330 kcqe->completion_status);
1332 set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1333 bnx2fc_get_link_state(hba);
1334 printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
1335 (u8)hba->pcidev->bus->number);
1339 case FCOE_KCQE_OPCODE_DESTROY_FUNC:
1340 if (kcqe->completion_status !=
1341 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1343 printk(KERN_ERR PFX "DESTROY failed\n");
1345 printk(KERN_ERR PFX "DESTROY success\n");
1347 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1348 wake_up_interruptible(&hba->destroy_wait);
1351 case FCOE_KCQE_OPCODE_DISABLE_CONN:
1352 bnx2fc_process_conn_disable_cmpl(hba, kcqe);
1355 case FCOE_KCQE_OPCODE_DESTROY_CONN:
1356 bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
1359 case FCOE_KCQE_OPCODE_STAT_FUNC:
1360 if (kcqe->completion_status !=
1361 FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
1362 printk(KERN_ERR PFX "STAT failed\n");
1363 complete(&hba->stat_req_done);
1366 case FCOE_KCQE_OPCODE_FCOE_ERROR:
1369 printk(KERN_ERR PFX "unknown opcode 0x%x\n",
1375 void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
1377 struct fcoe_sqe *sqe;
1379 sqe = &tgt->sq[tgt->sq_prod_idx];
1382 sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
1383 sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
1385 /* Advance SQ Prod Idx */
1386 if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
1387 tgt->sq_prod_idx = 0;
1388 tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
1392 void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
1394 struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
1398 sq_db->prod = tgt->sq_prod_idx |
1399 (tgt->sq_curr_toggle_bit << 15);
1400 msg = *((u32 *)sq_db);
1401 writel(cpu_to_le32(msg), tgt->ctx_base);
1405 int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
1407 u32 context_id = tgt->context_id;
1408 struct fcoe_port *port = tgt->port;
1410 resource_size_t reg_base;
1411 struct bnx2fc_interface *interface = port->priv;
1412 struct bnx2fc_hba *hba = interface->hba;
1414 reg_base = pci_resource_start(hba->pcidev,
1415 BNX2X_DOORBELL_PCI_BAR);
1416 reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
1417 tgt->ctx_base = ioremap(reg_base + reg_off, 4);
1423 char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1425 char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
1427 if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
1430 tgt->rq_cons_idx += num_items;
1432 if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
1433 tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
1438 void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1440 /* return the rq buffer */
1441 u32 next_prod_idx = tgt->rq_prod_idx + num_items;
1442 if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
1443 /* Wrap around RQ */
1444 next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
1446 tgt->rq_prod_idx = next_prod_idx;
1447 tgt->conn_db->rq_prod = tgt->rq_prod_idx;
1450 void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req,
1451 struct fcoe_task_ctx_entry *task,
1452 struct bnx2fc_cmd *orig_io_req,
1455 struct scsi_cmnd *sc_cmd = orig_io_req->sc_cmd;
1456 struct bnx2fc_rport *tgt = seq_clnp_req->tgt;
1457 struct fcoe_bd_ctx *bd = orig_io_req->bd_tbl->bd_tbl;
1458 struct fcoe_ext_mul_sges_ctx *sgl;
1459 u8 task_type = FCOE_TASK_TYPE_SEQUENCE_CLEANUP;
1461 u16 orig_xid = orig_io_req->xid;
1462 u32 context_id = tgt->context_id;
1463 u64 phys_addr = (u64)orig_io_req->bd_tbl->bd_tbl_dma;
1464 u32 orig_offset = offset;
1466 int orig_task_idx, index;
1469 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1471 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1472 orig_task_type = FCOE_TASK_TYPE_WRITE;
1474 orig_task_type = FCOE_TASK_TYPE_READ;
1477 task->txwr_rxrd.const_ctx.tx_flags =
1478 FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP <<
1479 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1481 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1482 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1483 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1484 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1485 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1486 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1487 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1488 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1490 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
1492 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_seq_cnt = 0;
1493 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_data_offset = offset;
1495 bd_count = orig_io_req->bd_tbl->bd_valid;
1497 /* obtain the appropriate bd entry from relative offset */
1498 for (i = 0; i < bd_count; i++) {
1499 if (offset < bd[i].buf_len)
1501 offset -= bd[i].buf_len;
1503 phys_addr += (i * sizeof(struct fcoe_bd_ctx));
1505 if (orig_task_type == FCOE_TASK_TYPE_WRITE) {
1506 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1508 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1509 (u32)((u64)phys_addr >> 32);
1510 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1512 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_off =
1513 offset; /* adjusted offset */
1514 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_idx = i;
1516 orig_task_idx = orig_xid / BNX2FC_TASKS_PER_PAGE;
1517 index = orig_xid % BNX2FC_TASKS_PER_PAGE;
1519 /* Multiple SGEs were used for this IO */
1520 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1521 sgl->mul_sgl.cur_sge_addr.lo = (u32)phys_addr;
1522 sgl->mul_sgl.cur_sge_addr.hi = (u32)((u64)phys_addr >> 32);
1523 sgl->mul_sgl.sgl_size = bd_count;
1524 sgl->mul_sgl.cur_sge_off = offset; /*adjusted offset */
1525 sgl->mul_sgl.cur_sge_idx = i;
1527 memset(&task->rxwr_only.rx_seq_ctx, 0,
1528 sizeof(struct fcoe_rx_seq_ctx));
1529 task->rxwr_only.rx_seq_ctx.low_exp_ro = orig_offset;
1530 task->rxwr_only.rx_seq_ctx.high_exp_ro = orig_offset;
1533 void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
1534 struct fcoe_task_ctx_entry *task,
1537 u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
1538 struct bnx2fc_rport *tgt = io_req->tgt;
1539 u32 context_id = tgt->context_id;
1541 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1543 /* Tx Write Rx Read */
1545 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1546 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1547 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1548 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1549 if (tgt->dev_type == TYPE_TAPE)
1550 task->txwr_rxrd.const_ctx.init_flags |=
1551 FCOE_TASK_DEV_TYPE_TAPE <<
1552 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1554 task->txwr_rxrd.const_ctx.init_flags |=
1555 FCOE_TASK_DEV_TYPE_DISK <<
1556 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1557 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
1560 task->txwr_rxrd.const_ctx.tx_flags =
1561 FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
1562 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1564 /* Rx Read Tx Write */
1565 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1566 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1567 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1568 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1571 void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
1572 struct fcoe_task_ctx_entry *task)
1574 struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
1575 struct bnx2fc_rport *tgt = io_req->tgt;
1576 struct fc_frame_header *fc_hdr;
1577 struct fcoe_ext_mul_sges_ctx *sgl;
1584 /* Obtain task_type */
1585 if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
1586 (io_req->cmd_type == BNX2FC_ELS)) {
1587 task_type = FCOE_TASK_TYPE_MIDPATH;
1588 } else if (io_req->cmd_type == BNX2FC_ABTS) {
1589 task_type = FCOE_TASK_TYPE_ABTS;
1592 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1594 /* Setup the task from io_req for easy reference */
1595 io_req->task = task;
1597 BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
1598 io_req->cmd_type, task_type);
1601 if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
1602 (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
1603 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1604 (u32)mp_req->mp_req_bd_dma;
1605 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1606 (u32)((u64)mp_req->mp_req_bd_dma >> 32);
1607 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size = 1;
1610 /* Tx Write Rx Read */
1612 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1613 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1614 if (tgt->dev_type == TYPE_TAPE)
1615 task->txwr_rxrd.const_ctx.init_flags |=
1616 FCOE_TASK_DEV_TYPE_TAPE <<
1617 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1619 task->txwr_rxrd.const_ctx.init_flags |=
1620 FCOE_TASK_DEV_TYPE_DISK <<
1621 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1622 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1623 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1626 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT <<
1627 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1629 /* Rx Write Tx Read */
1630 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1633 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1634 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1636 context_id = tgt->context_id;
1637 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1638 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1640 fc_hdr = &(mp_req->req_fc_hdr);
1641 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
1642 fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
1643 fc_hdr->fh_rx_id = htons(0xffff);
1644 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
1645 } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
1646 fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
1649 /* Fill FC Header into middle path buffer */
1650 hdr = (u64 *) &task->txwr_rxrd.union_ctx.tx_frame.fc_hdr;
1651 memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
1652 hdr[0] = cpu_to_be64(temp_hdr[0]);
1653 hdr[1] = cpu_to_be64(temp_hdr[1]);
1654 hdr[2] = cpu_to_be64(temp_hdr[2]);
1657 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
1658 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1660 sgl->mul_sgl.cur_sge_addr.lo = (u32)mp_req->mp_resp_bd_dma;
1661 sgl->mul_sgl.cur_sge_addr.hi =
1662 (u32)((u64)mp_req->mp_resp_bd_dma >> 32);
1663 sgl->mul_sgl.sgl_size = 1;
1667 void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
1668 struct fcoe_task_ctx_entry *task)
1671 struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
1672 struct io_bdt *bd_tbl = io_req->bd_tbl;
1673 struct bnx2fc_rport *tgt = io_req->tgt;
1674 struct fcoe_cached_sge_ctx *cached_sge;
1675 struct fcoe_ext_mul_sges_ctx *sgl;
1676 int dev_type = tgt->dev_type;
1678 u64 tmp_fcp_cmnd[4];
1683 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1685 /* Setup the task from io_req for easy reference */
1686 io_req->task = task;
1688 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1689 task_type = FCOE_TASK_TYPE_WRITE;
1691 task_type = FCOE_TASK_TYPE_READ;
1694 bd_count = bd_tbl->bd_valid;
1695 cached_sge = &task->rxwr_only.union_ctx.read_info.sgl_ctx.cached_sge;
1696 if (task_type == FCOE_TASK_TYPE_WRITE) {
1697 if ((dev_type == TYPE_DISK) && (bd_count == 1)) {
1698 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1700 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.lo =
1701 cached_sge->cur_buf_addr.lo =
1702 fcoe_bd_tbl->buf_addr_lo;
1703 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.hi =
1704 cached_sge->cur_buf_addr.hi =
1705 fcoe_bd_tbl->buf_addr_hi;
1706 task->txwr_only.sgl_ctx.cached_sge.cur_buf_rem =
1707 cached_sge->cur_buf_rem =
1708 fcoe_bd_tbl->buf_len;
1710 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1711 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1713 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1714 (u32)bd_tbl->bd_tbl_dma;
1715 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1716 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1717 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1722 /*Tx Write Rx Read */
1723 /* Init state to NORMAL */
1724 task->txwr_rxrd.const_ctx.init_flags |= task_type <<
1725 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1726 if (dev_type == TYPE_TAPE) {
1727 task->txwr_rxrd.const_ctx.init_flags |=
1728 FCOE_TASK_DEV_TYPE_TAPE <<
1729 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1730 io_req->rec_retry = 0;
1731 io_req->rec_retry = 0;
1733 task->txwr_rxrd.const_ctx.init_flags |=
1734 FCOE_TASK_DEV_TYPE_DISK <<
1735 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1736 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1737 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1739 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
1740 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1742 /* Set initial seq counter */
1743 task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1;
1745 /* Fill FCP_CMND IU */
1747 task->txwr_rxrd.union_ctx.fcp_cmd.opaque;
1748 bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
1751 cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
1753 for (i = 0; i < cnt; i++) {
1754 *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
1758 /* Rx Write Tx Read */
1759 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1761 context_id = tgt->context_id;
1762 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1763 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1766 /* Set state to "waiting for the first packet" */
1767 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1768 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1770 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
1773 if (task_type != FCOE_TASK_TYPE_READ)
1776 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1777 bd_count = bd_tbl->bd_valid;
1779 if (dev_type == TYPE_DISK) {
1780 if (bd_count == 1) {
1782 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1784 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1785 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1786 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1787 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1788 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1789 } else if (bd_count == 2) {
1790 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1792 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1793 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1794 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1797 cached_sge->second_buf_addr.lo =
1798 fcoe_bd_tbl->buf_addr_lo;
1799 cached_sge->second_buf_addr.hi =
1800 fcoe_bd_tbl->buf_addr_hi;
1801 cached_sge->second_buf_rem = fcoe_bd_tbl->buf_len;
1802 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1803 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1806 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1807 sgl->mul_sgl.cur_sge_addr.hi =
1808 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1809 sgl->mul_sgl.sgl_size = bd_count;
1812 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1813 sgl->mul_sgl.cur_sge_addr.hi =
1814 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1815 sgl->mul_sgl.sgl_size = bd_count;
1820 * bnx2fc_setup_task_ctx - allocate and map task context
1822 * @hba: pointer to adapter structure
1824 * allocate memory for task context, and associated BD table to be used
1828 int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
1831 struct regpair *task_ctx_bdt;
1833 int task_ctx_arr_sz;
1837 * Allocate task context bd table. A page size of bd table
1838 * can map 256 buffers. Each buffer contains 32 task context
1839 * entries. Hence the limit with one page is 8192 task context
1842 hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
1844 &hba->task_ctx_bd_dma,
1846 if (!hba->task_ctx_bd_tbl) {
1847 printk(KERN_ERR PFX "unable to allocate task context BDT\n");
1853 * Allocate task_ctx which is an array of pointers pointing to
1854 * a page containing 32 task contexts
1856 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
1857 hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)),
1859 if (!hba->task_ctx) {
1860 printk(KERN_ERR PFX "unable to allocate task context array\n");
1866 * Allocate task_ctx_dma which is an array of dma addresses
1868 hba->task_ctx_dma = kmalloc((task_ctx_arr_sz *
1869 sizeof(dma_addr_t)), GFP_KERNEL);
1870 if (!hba->task_ctx_dma) {
1871 printk(KERN_ERR PFX "unable to alloc context mapping array\n");
1876 task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
1877 for (i = 0; i < task_ctx_arr_sz; i++) {
1879 hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
1881 &hba->task_ctx_dma[i],
1883 if (!hba->task_ctx[i]) {
1884 printk(KERN_ERR PFX "unable to alloc task context\n");
1888 addr = (u64)hba->task_ctx_dma[i];
1889 task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
1890 task_ctx_bdt->lo = cpu_to_le32((u32)addr);
1896 for (i = 0; i < task_ctx_arr_sz; i++) {
1897 if (hba->task_ctx[i]) {
1899 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1900 hba->task_ctx[i], hba->task_ctx_dma[i]);
1901 hba->task_ctx[i] = NULL;
1905 kfree(hba->task_ctx_dma);
1906 hba->task_ctx_dma = NULL;
1908 kfree(hba->task_ctx);
1909 hba->task_ctx = NULL;
1911 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1912 hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
1913 hba->task_ctx_bd_tbl = NULL;
1918 void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
1920 int task_ctx_arr_sz;
1923 if (hba->task_ctx_bd_tbl) {
1924 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1925 hba->task_ctx_bd_tbl,
1926 hba->task_ctx_bd_dma);
1927 hba->task_ctx_bd_tbl = NULL;
1930 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
1931 if (hba->task_ctx) {
1932 for (i = 0; i < task_ctx_arr_sz; i++) {
1933 if (hba->task_ctx[i]) {
1934 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1936 hba->task_ctx_dma[i]);
1937 hba->task_ctx[i] = NULL;
1940 kfree(hba->task_ctx);
1941 hba->task_ctx = NULL;
1944 kfree(hba->task_ctx_dma);
1945 hba->task_ctx_dma = NULL;
1948 static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
1954 if (hba->hash_tbl_segments) {
1956 pbl = hba->hash_tbl_pbl;
1958 segment_count = hba->hash_tbl_segment_count;
1959 for (i = 0; i < segment_count; ++i) {
1960 dma_addr_t dma_address;
1962 dma_address = le32_to_cpu(*pbl);
1964 dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
1966 dma_free_coherent(&hba->pcidev->dev,
1967 BNX2FC_HASH_TBL_CHUNK_SIZE,
1968 hba->hash_tbl_segments[i],
1973 kfree(hba->hash_tbl_segments);
1974 hba->hash_tbl_segments = NULL;
1977 if (hba->hash_tbl_pbl) {
1978 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1980 hba->hash_tbl_pbl_dma);
1981 hba->hash_tbl_pbl = NULL;
1985 static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
1988 int hash_table_size;
1990 int segment_array_size;
1991 int dma_segment_array_size;
1992 dma_addr_t *dma_segment_array;
1995 hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
1996 sizeof(struct fcoe_hash_table_entry);
1998 segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
1999 segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
2000 hba->hash_tbl_segment_count = segment_count;
2002 segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
2003 hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
2004 if (!hba->hash_tbl_segments) {
2005 printk(KERN_ERR PFX "hash table pointers alloc failed\n");
2008 dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
2009 dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
2010 if (!dma_segment_array) {
2011 printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
2015 for (i = 0; i < segment_count; ++i) {
2016 hba->hash_tbl_segments[i] = dma_alloc_coherent(&hba->pcidev->dev,
2017 BNX2FC_HASH_TBL_CHUNK_SIZE,
2018 &dma_segment_array[i],
2020 if (!hba->hash_tbl_segments[i]) {
2021 printk(KERN_ERR PFX "hash segment alloc failed\n");
2026 hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
2027 &hba->hash_tbl_pbl_dma,
2029 if (!hba->hash_tbl_pbl) {
2030 printk(KERN_ERR PFX "hash table pbl alloc failed\n");
2034 pbl = hba->hash_tbl_pbl;
2035 for (i = 0; i < segment_count; ++i) {
2036 u64 paddr = dma_segment_array[i];
2037 *pbl = cpu_to_le32((u32) paddr);
2039 *pbl = cpu_to_le32((u32) (paddr >> 32));
2042 pbl = hba->hash_tbl_pbl;
2044 while (*pbl && *(pbl + 1)) {
2053 kfree(dma_segment_array);
2057 for (i = 0; i < segment_count; ++i) {
2058 if (hba->hash_tbl_segments[i])
2059 dma_free_coherent(&hba->pcidev->dev,
2060 BNX2FC_HASH_TBL_CHUNK_SIZE,
2061 hba->hash_tbl_segments[i],
2062 dma_segment_array[i]);
2065 kfree(dma_segment_array);
2068 kfree(hba->hash_tbl_segments);
2069 hba->hash_tbl_segments = NULL;
2074 * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
2076 * @hba: Pointer to adapter structure
2079 int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
2085 if (bnx2fc_allocate_hash_table(hba))
2088 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
2089 hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2090 &hba->t2_hash_tbl_ptr_dma,
2092 if (!hba->t2_hash_tbl_ptr) {
2093 printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
2094 bnx2fc_free_fw_resc(hba);
2098 mem_size = BNX2FC_NUM_MAX_SESS *
2099 sizeof(struct fcoe_t2_hash_table_entry);
2100 hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2101 &hba->t2_hash_tbl_dma,
2103 if (!hba->t2_hash_tbl) {
2104 printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
2105 bnx2fc_free_fw_resc(hba);
2108 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
2109 addr = (unsigned long) hba->t2_hash_tbl_dma +
2110 ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
2111 hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
2112 hba->t2_hash_tbl[i].next.hi = addr >> 32;
2115 hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
2116 PAGE_SIZE, &hba->dummy_buf_dma,
2118 if (!hba->dummy_buffer) {
2119 printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
2120 bnx2fc_free_fw_resc(hba);
2124 hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
2125 &hba->stats_buf_dma,
2127 if (!hba->stats_buffer) {
2128 printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
2129 bnx2fc_free_fw_resc(hba);
2136 void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
2140 if (hba->stats_buffer) {
2141 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2142 hba->stats_buffer, hba->stats_buf_dma);
2143 hba->stats_buffer = NULL;
2146 if (hba->dummy_buffer) {
2147 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2148 hba->dummy_buffer, hba->dummy_buf_dma);
2149 hba->dummy_buffer = NULL;
2152 if (hba->t2_hash_tbl_ptr) {
2153 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
2154 dma_free_coherent(&hba->pcidev->dev, mem_size,
2155 hba->t2_hash_tbl_ptr,
2156 hba->t2_hash_tbl_ptr_dma);
2157 hba->t2_hash_tbl_ptr = NULL;
2160 if (hba->t2_hash_tbl) {
2161 mem_size = BNX2FC_NUM_MAX_SESS *
2162 sizeof(struct fcoe_t2_hash_table_entry);
2163 dma_free_coherent(&hba->pcidev->dev, mem_size,
2164 hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
2165 hba->t2_hash_tbl = NULL;
2167 bnx2fc_free_hash_table(hba);