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. 4 * 5 * Copyright (c) 2008-2013 Broadcom Corporation 6 * Copyright (c) 2014-2016 QLogic Corporation 7 * Copyright (c) 2016-2017 Cavium Inc. 8 * 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. 12 * 13 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com) 14 */ 15 16 #include "bnx2fc.h" 17 18 DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); 19 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); 29 30 int bnx2fc_send_stat_req(struct bnx2fc_hba *hba) 31 { 32 struct fcoe_kwqe_stat stat_req; 33 struct kwqe *kwqe_arr[2]; 34 int num_kwqes = 1; 35 int rc = 0; 36 37 memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat)); 38 stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT; 39 stat_req.hdr.flags = 40 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT); 41 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); 44 45 kwqe_arr[0] = (struct kwqe *) &stat_req; 46 47 if (hba->cnic && hba->cnic->submit_kwqes) 48 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 49 50 return rc; 51 } 52 53 /** 54 * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w 55 * 56 * @hba: adapter structure pointer 57 * 58 * Send down FCoE firmware init KWQEs which initiates the initial handshake 59 * with the f/w. 60 * 61 */ 62 int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba) 63 { 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]; 68 int num_kwqes = 3; 69 int rc = 0; 70 71 if (!hba->cnic) { 72 printk(KERN_ERR PFX "hba->cnic NULL during fcoe fw init\n"); 73 return -ENODEV; 74 } 75 76 /* fill init1 KWQE */ 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); 81 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; 93 94 fcoe_init1.flags = (PAGE_SHIFT << 95 FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT); 96 97 fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG; 98 99 /* fill init2 KWQE */ 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); 104 105 fcoe_init2.hsi_major_version = FCOE_HSI_MAJOR_VERSION; 106 fcoe_init2.hsi_minor_version = FCOE_HSI_MINOR_VERSION; 107 108 109 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); 112 113 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); 116 117 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); 120 121 fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS; 122 123 /* 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; 130 131 /* 132 * enable both cached connection and cached tasks 133 * 0 = none, 1 = cached connection, 2 = cached tasks, 3 = both 134 */ 135 fcoe_init3.perf_config = 3; 136 137 kwqe_arr[0] = (struct kwqe *) &fcoe_init1; 138 kwqe_arr[1] = (struct kwqe *) &fcoe_init2; 139 kwqe_arr[2] = (struct kwqe *) &fcoe_init3; 140 141 if (hba->cnic && hba->cnic->submit_kwqes) 142 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 143 144 return rc; 145 } 146 int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba) 147 { 148 struct fcoe_kwqe_destroy fcoe_destroy; 149 struct kwqe *kwqe_arr[2]; 150 int num_kwqes = 1; 151 int rc = -1; 152 153 /* 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; 159 160 if (hba->cnic && hba->cnic->submit_kwqes) 161 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 162 return rc; 163 } 164 165 /** 166 * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process 167 * 168 * @port: port structure pointer 169 * @tgt: bnx2fc_rport structure pointer 170 */ 171 int bnx2fc_send_session_ofld_req(struct fcoe_port *port, 172 struct bnx2fc_rport *tgt) 173 { 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; 185 int num_kwqes = 4; 186 u32 port_id; 187 int rc = 0; 188 u16 conn_id; 189 190 /* Initialize offload request 1 structure */ 191 memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1)); 192 193 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); 196 197 198 conn_id = (u16)tgt->fcoe_conn_id; 199 ofld_req1.fcoe_conn_id = conn_id; 200 201 202 ofld_req1.sq_addr_lo = (u32) tgt->sq_dma; 203 ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32); 204 205 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); 207 208 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); 211 212 ofld_req1.rq_prod = 0x8000; 213 214 /* Initialize offload request 2 structure */ 215 memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2)); 216 217 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); 220 221 ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size; 222 223 ofld_req2.cq_addr_lo = (u32) tgt->cq_dma; 224 ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32); 225 226 ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma; 227 ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32); 228 229 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); 231 232 /* Initialize offload request 3 structure */ 233 memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3)); 234 235 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); 238 239 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; 242 243 port_id = fc_host_port_id(lport->host); 244 if (port_id == 0) { 245 BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n"); 246 return -EINVAL; 247 } 248 249 /* 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 0 253 */ 254 tgt->sid = port_id; 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; 258 259 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; 263 264 ofld_req3.tx_total_conc_seqs = rdata->max_seq; 265 266 ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq; 267 ofld_req3.rx_max_fc_pay_len = lport->mfs; 268 269 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; 272 273 ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma; 274 ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32); 275 276 /* set mul_n_port_ids supported flag to 0, until it is supported */ 277 ofld_req3.flags = 0; 278 /* 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); 281 */ 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); 285 286 ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) << 287 FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT); 288 289 /* 290 * Info from PRLI response, this info is used for sequence level error 291 * recovery support 292 */ 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) 297 ? 1 : 0) << 298 FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT); 299 } 300 301 /* vlan flag */ 302 ofld_req3.flags |= (interface->vlan_enabled << 303 FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT); 304 305 /* C2_VALID and ACK flags are not set as they are not supported */ 306 307 308 /* 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); 313 314 ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20; 315 316 317 ofld_req4.src_mac_addr_lo[0] = port->data_src_addr[5]; 318 /* local mac */ 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]; 325 /* fcf mac */ 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]; 331 332 ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma; 333 ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32); 334 335 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); 338 339 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; 343 344 if (hba->cnic && hba->cnic->submit_kwqes) 345 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 346 347 return rc; 348 } 349 350 /** 351 * bnx2fc_send_session_enable_req - initiates FCoE Session enablement 352 * 353 * @port: port structure pointer 354 * @tgt: bnx2fc_rport structure pointer 355 */ 356 int bnx2fc_send_session_enable_req(struct fcoe_port *port, 357 struct bnx2fc_rport *tgt) 358 { 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; 366 int num_kwqes = 1; 367 int rc = 0; 368 u32 port_id; 369 370 memset(&enbl_req, 0x00, 371 sizeof(struct fcoe_kwqe_conn_enable_disable)); 372 enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN; 373 enbl_req.hdr.flags = 374 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT); 375 376 enbl_req.src_mac_addr_lo[0] = port->data_src_addr[5]; 377 /* local mac */ 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); 384 385 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]; 391 392 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); 396 port_id = tgt->sid; 397 } 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; 401 402 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; 412 413 kwqe_arr[0] = (struct kwqe *) &enbl_req; 414 415 if (hba->cnic && hba->cnic->submit_kwqes) 416 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 417 return rc; 418 } 419 420 /** 421 * bnx2fc_send_session_disable_req - initiates FCoE Session disable 422 * 423 * @port: port structure pointer 424 * @tgt: bnx2fc_rport structure pointer 425 */ 426 int bnx2fc_send_session_disable_req(struct fcoe_port *port, 427 struct bnx2fc_rport *tgt) 428 { 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; 435 int num_kwqes = 1; 436 int rc = 0; 437 u32 port_id; 438 439 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); 444 445 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]; 451 452 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]; 458 459 port_id = tgt->sid; 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; 463 464 465 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; 476 477 kwqe_arr[0] = (struct kwqe *) &disable_req; 478 479 if (hba->cnic && hba->cnic->submit_kwqes) 480 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 481 482 return rc; 483 } 484 485 /** 486 * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy 487 * 488 * @port: port structure pointer 489 * @tgt: bnx2fc_rport structure pointer 490 */ 491 int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba, 492 struct bnx2fc_rport *tgt) 493 { 494 struct fcoe_kwqe_conn_destroy destroy_req; 495 struct kwqe *kwqe_arr[2]; 496 int num_kwqes = 1; 497 int rc = 0; 498 499 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); 503 504 destroy_req.context_id = tgt->context_id; 505 destroy_req.conn_id = tgt->fcoe_conn_id; 506 507 kwqe_arr[0] = (struct kwqe *) &destroy_req; 508 509 if (hba->cnic && hba->cnic->submit_kwqes) 510 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); 511 512 return rc; 513 } 514 515 static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport) 516 { 517 struct bnx2fc_lport *blport; 518 519 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); 523 return true; 524 } 525 } 526 spin_unlock_bh(&hba->hba_lock); 527 return false; 528 529 } 530 531 532 static void bnx2fc_unsol_els_work(struct work_struct *work) 533 { 534 struct bnx2fc_unsol_els *unsol_els; 535 struct fc_lport *lport; 536 struct bnx2fc_hba *hba; 537 struct fc_frame *fp; 538 539 unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work); 540 lport = unsol_els->lport; 541 fp = unsol_els->fp; 542 hba = unsol_els->hba; 543 if (is_valid_lport(hba, lport)) 544 fc_exch_recv(lport, fp); 545 kfree(unsol_els); 546 } 547 548 void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, 549 unsigned char *buf, 550 u32 frame_len, u16 l2_oxid) 551 { 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; 557 struct fc_frame *fp; 558 struct sk_buff *skb; 559 u32 payload_len; 560 u32 crc; 561 u8 op; 562 563 564 unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC); 565 if (!unsol_els) { 566 BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n"); 567 return; 568 } 569 570 BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n", 571 l2_oxid, frame_len); 572 573 payload_len = frame_len - sizeof(struct fc_frame_header); 574 575 fp = fc_frame_alloc(lport, payload_len); 576 if (!fp) { 577 printk(KERN_ERR PFX "fc_frame_alloc failure\n"); 578 kfree(unsol_els); 579 return; 580 } 581 582 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); 585 586 if (l2_oxid != FC_XID_UNKNOWN) 587 fh->fh_ox_id = htons(l2_oxid); 588 589 skb = fp_skb(fp); 590 591 if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) || 592 (fh->fh_r_ctl == FC_RCTL_ELS_REP)) { 593 594 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)) { 598 /* 599 * No need to reply for these 600 * ELS requests 601 */ 602 printk(KERN_ERR PFX "dropping ELS 0x%x\n", op); 603 kfree_skb(skb); 604 kfree(unsol_els); 605 return; 606 } 607 } 608 crc = fcoe_fc_crc(fp); 609 fc_frame_init(fp); 610 fr_dev(fp) = lport; 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; 616 unsol_els->fp = fp; 617 INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work); 618 queue_work(bnx2fc_wq, &unsol_els->unsol_els_work); 619 } else { 620 BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl); 621 kfree_skb(skb); 622 kfree(unsol_els); 623 } 624 } 625 626 static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) 627 { 628 u8 num_rq; 629 struct fcoe_err_report_entry *err_entry; 630 unsigned char *rq_data; 631 unsigned char *buf = NULL, *buf1; 632 int i; 633 u16 xid; 634 u32 frame_len, len; 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; 639 int task_idx, index; 640 int rc = 0; 641 u64 err_warn_bit_map; 642 u8 err_warn = 0xff; 643 644 645 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; 650 651 num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ; 652 653 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); 656 657 if (rq_data) { 658 buf = rq_data; 659 } else { 660 buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ), 661 GFP_ATOMIC); 662 663 if (!buf1) { 664 BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n"); 665 break; 666 } 667 668 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); 675 buf1 += len; 676 } 677 } 678 bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, 679 FC_XID_UNKNOWN); 680 681 if (buf != rq_data) 682 kfree(buf); 683 spin_lock_bh(&tgt->tgt_lock); 684 bnx2fc_return_rqe(tgt, num_rq); 685 spin_unlock_bh(&tgt->tgt_lock); 686 break; 687 688 case FCOE_ERROR_DETECTION_CQE_TYPE: 689 /* 690 * In case of error reporting CQE a single RQ entry 691 * is consumed. 692 */ 693 spin_lock_bh(&tgt->tgt_lock); 694 num_rq = 1; 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); 704 705 706 if (xid > hba->max_xid) { 707 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", 708 xid); 709 goto ret_err_rqe; 710 } 711 712 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]); 717 718 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid]; 719 if (!io_req) 720 goto ret_err_rqe; 721 722 if (io_req->cmd_type != BNX2FC_SCSI_CMD) { 723 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n"); 724 goto ret_err_rqe; 725 } 726 727 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"); 731 goto ret_err_rqe; 732 } 733 734 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)) { 739 err_warn = i; 740 break; 741 } 742 } 743 744 /* 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 749 * times out. 750 */ 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); 754 goto ret_err_rqe; 755 } 756 BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn); 757 if (tgt->dev_type != TYPE_TAPE) 758 goto skip_rec; 759 switch (err_warn) { 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", 767 xid); 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); 775 776 if (rc) 777 goto skip_rec; 778 } else 779 printk(KERN_ERR PFX "SRR in progress\n"); 780 goto ret_err_rqe; 781 break; 782 default: 783 break; 784 } 785 786 skip_rec: 787 set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags); 788 /* 789 * Cancel the timeout_work, as we received IO 790 * completion with FW error. 791 */ 792 if (cancel_delayed_work(&io_req->timeout_work)) 793 kref_put(&io_req->refcount, bnx2fc_cmd_release); 794 795 rc = bnx2fc_initiate_abts(io_req); 796 if (rc != SUCCESS) { 797 printk(KERN_ERR PFX "err_warn: initiate_abts " 798 "failed xid = 0x%x. issue cleanup\n", 799 io_req->xid); 800 bnx2fc_initiate_cleanup(io_req); 801 } 802 ret_err_rqe: 803 bnx2fc_return_rqe(tgt, 1); 804 spin_unlock_bh(&tgt->tgt_lock); 805 break; 806 807 case FCOE_WARNING_DETECTION_CQE_TYPE: 808 /* 809 *In case of warning reporting CQE a single RQ entry 810 * is consumes. 811 */ 812 spin_lock_bh(&tgt->tgt_lock); 813 num_rq = 1; 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); 823 824 if (xid > hba->max_xid) { 825 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid); 826 goto ret_warn_rqe; 827 } 828 829 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)) { 834 err_warn = i; 835 break; 836 } 837 } 838 BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn); 839 840 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]; 846 if (!io_req) 847 goto ret_warn_rqe; 848 849 if (io_req->cmd_type != BNX2FC_SCSI_CMD) { 850 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n"); 851 goto ret_warn_rqe; 852 } 853 854 memcpy(&io_req->err_entry, err_entry, 855 sizeof(struct fcoe_err_report_entry)); 856 857 if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION) 858 /* REC_TOV is not a warning code */ 859 BUG_ON(1); 860 else 861 BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n"); 862 ret_warn_rqe: 863 bnx2fc_return_rqe(tgt, 1); 864 spin_unlock_bh(&tgt->tgt_lock); 865 break; 866 867 default: 868 printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n"); 869 break; 870 } 871 } 872 873 void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe) 874 { 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; 881 int task_idx, index; 882 u16 xid; 883 u8 cmd_type; 884 u8 rx_state = 0; 885 u8 num_rq; 886 887 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); 892 return; 893 } 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]); 898 899 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); 902 903 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid]; 904 905 if (io_req == NULL) { 906 printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n"); 907 spin_unlock_bh(&tgt->tgt_lock); 908 return; 909 } 910 911 /* Timestamp IO completion time */ 912 cmd_type = io_req->cmd_type; 913 914 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); 917 918 /* Process other IO completion types */ 919 switch (cmd_type) { 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); 924 return; 925 } 926 927 if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED) 928 bnx2fc_process_abts_compl(io_req, task, num_rq); 929 else if (rx_state == 930 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED) 931 bnx2fc_process_cleanup_compl(io_req, task, num_rq); 932 else 933 printk(KERN_ERR PFX "Invalid rx state - %d\n", 934 rx_state); 935 break; 936 937 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); 940 break; 941 942 case BNX2FC_ABTS: 943 /* 944 * ABTS request received by firmware. ABTS response 945 * will be delivered to the task belonging to the IO 946 * that was aborted 947 */ 948 BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n"); 949 kref_put(&io_req->refcount, bnx2fc_cmd_release); 950 break; 951 952 case BNX2FC_ELS: 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); 957 else if (rx_state == 958 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED) 959 bnx2fc_process_cleanup_compl(io_req, task, num_rq); 960 else 961 printk(KERN_ERR PFX "Invalid rx state = %d\n", 962 rx_state); 963 break; 964 965 case BNX2FC_CLEANUP: 966 BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n"); 967 kref_put(&io_req->refcount, bnx2fc_cmd_release); 968 break; 969 970 case BNX2FC_SEQ_CLEANUP: 971 BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n", 972 io_req->xid); 973 bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state); 974 kref_put(&io_req->refcount, bnx2fc_cmd_release); 975 break; 976 977 default: 978 printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type); 979 break; 980 } 981 spin_unlock_bh(&tgt->tgt_lock); 982 } 983 984 void bnx2fc_arm_cq(struct bnx2fc_rport *tgt) 985 { 986 struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db; 987 u32 msg; 988 989 wmb(); 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); 994 mmiowb(); 995 996 } 997 998 static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe) 999 { 1000 struct bnx2fc_work *work; 1001 work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC); 1002 if (!work) 1003 return NULL; 1004 1005 INIT_LIST_HEAD(&work->list); 1006 work->tgt = tgt; 1007 work->wqe = wqe; 1008 return work; 1009 } 1010 1011 int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt) 1012 { 1013 struct fcoe_cqe *cq; 1014 u32 cq_cons; 1015 struct fcoe_cqe *cqe; 1016 u32 num_free_sqes = 0; 1017 u32 num_cqes = 0; 1018 u16 wqe; 1019 1020 /* 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 1024 */ 1025 spin_lock_bh(&tgt->cq_lock); 1026 1027 if (!tgt->cq) { 1028 printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n"); 1029 spin_unlock_bh(&tgt->cq_lock); 1030 return 0; 1031 } 1032 cq = tgt->cq; 1033 cq_cons = tgt->cq_cons_idx; 1034 cqe = &cq[cq_cons]; 1035 1036 while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) == 1037 (tgt->cq_curr_toggle_bit << 1038 FCOE_CQE_TOGGLE_BIT_SHIFT)) { 1039 1040 /* new entry on the cq */ 1041 if (wqe & FCOE_CQE_CQE_TYPE) { 1042 /* Unsolicited event notification */ 1043 bnx2fc_process_unsol_compl(tgt, wqe); 1044 } else { 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(); 1049 1050 fps = &per_cpu(bnx2fc_percpu, cpu); 1051 spin_lock_bh(&fps->fp_work_lock); 1052 if (unlikely(!fps->iothread)) 1053 goto unlock; 1054 1055 work = bnx2fc_alloc_work(tgt, wqe); 1056 if (work) 1057 list_add_tail(&work->list, 1058 &fps->work_list); 1059 unlock: 1060 spin_unlock_bh(&fps->fp_work_lock); 1061 1062 /* Pending work request completion */ 1063 if (fps->iothread && work) 1064 wake_up_process(fps->iothread); 1065 else 1066 bnx2fc_process_cq_compl(tgt, wqe); 1067 num_free_sqes++; 1068 } 1069 cqe++; 1070 tgt->cq_cons_idx++; 1071 num_cqes++; 1072 1073 if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) { 1074 tgt->cq_cons_idx = 0; 1075 cqe = cq; 1076 tgt->cq_curr_toggle_bit = 1077 1 - tgt->cq_curr_toggle_bit; 1078 } 1079 } 1080 if (num_cqes) { 1081 /* Arm CQ only if doorbell is mapped */ 1082 if (tgt->ctx_base) 1083 bnx2fc_arm_cq(tgt); 1084 atomic_add(num_free_sqes, &tgt->free_sqes); 1085 } 1086 spin_unlock_bh(&tgt->cq_lock); 1087 return 0; 1088 } 1089 1090 /** 1091 * bnx2fc_fastpath_notification - process global event queue (KCQ) 1092 * 1093 * @hba: adapter structure pointer 1094 * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry 1095 * 1096 * Fast path event notification handler 1097 */ 1098 static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba, 1099 struct fcoe_kcqe *new_cqe_kcqe) 1100 { 1101 u32 conn_id = new_cqe_kcqe->fcoe_conn_id; 1102 struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id]; 1103 1104 if (!tgt) { 1105 printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id); 1106 return; 1107 } 1108 1109 bnx2fc_process_new_cqes(tgt); 1110 } 1111 1112 /** 1113 * bnx2fc_process_ofld_cmpl - process FCoE session offload completion 1114 * 1115 * @hba: adapter structure pointer 1116 * @ofld_kcqe: connection offload kcqe pointer 1117 * 1118 * handle session offload completion, enable the session if offload is 1119 * successful. 1120 */ 1121 static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba, 1122 struct fcoe_kcqe *ofld_kcqe) 1123 { 1124 struct bnx2fc_rport *tgt; 1125 struct fcoe_port *port; 1126 struct bnx2fc_interface *interface; 1127 u32 conn_id; 1128 u32 context_id; 1129 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]; 1133 if (!tgt) { 1134 printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n"); 1135 return; 1136 } 1137 BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n", 1138 ofld_kcqe->fcoe_conn_context_id); 1139 port = tgt->port; 1140 interface = tgt->port->priv; 1141 if (hba != interface->hba) { 1142 printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mis-match\n"); 1143 goto ofld_cmpl_err; 1144 } 1145 /* 1146 * cnic has allocated a context_id for this session; use this 1147 * while enabling the session. 1148 */ 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 " 1154 "resources\n"); 1155 set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags); 1156 } 1157 } else { 1158 /* FW offload request successfully completed */ 1159 set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags); 1160 } 1161 ofld_cmpl_err: 1162 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags); 1163 wake_up_interruptible(&tgt->ofld_wait); 1164 } 1165 1166 /** 1167 * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion 1168 * 1169 * @hba: adapter structure pointer 1170 * @ofld_kcqe: connection offload kcqe pointer 1171 * 1172 * handle session enable completion, mark the rport as ready 1173 */ 1174 1175 static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba, 1176 struct fcoe_kcqe *ofld_kcqe) 1177 { 1178 struct bnx2fc_rport *tgt; 1179 struct bnx2fc_interface *interface; 1180 u32 conn_id; 1181 u32 context_id; 1182 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]; 1186 if (!tgt) { 1187 printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n"); 1188 return; 1189 } 1190 1191 BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n", 1192 ofld_kcqe->fcoe_conn_context_id); 1193 1194 /* 1195 * context_id should be the same for this target during offload 1196 * and enable 1197 */ 1198 if (tgt->context_id != context_id) { 1199 printk(KERN_ERR PFX "context id mis-match\n"); 1200 return; 1201 } 1202 interface = tgt->port->priv; 1203 if (hba != interface->hba) { 1204 printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mis-match\n"); 1205 goto enbl_cmpl_err; 1206 } 1207 if (!ofld_kcqe->completion_status) 1208 /* enable successful - rport ready for issuing IOs */ 1209 set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags); 1210 1211 enbl_cmpl_err: 1212 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags); 1213 wake_up_interruptible(&tgt->ofld_wait); 1214 } 1215 1216 static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba, 1217 struct fcoe_kcqe *disable_kcqe) 1218 { 1219 1220 struct bnx2fc_rport *tgt; 1221 u32 conn_id; 1222 1223 conn_id = disable_kcqe->fcoe_conn_id; 1224 tgt = hba->tgt_ofld_list[conn_id]; 1225 if (!tgt) { 1226 printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n"); 1227 return; 1228 } 1229 1230 BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id); 1231 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); 1238 } else { 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); 1246 } 1247 } 1248 1249 static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba, 1250 struct fcoe_kcqe *destroy_kcqe) 1251 { 1252 struct bnx2fc_rport *tgt; 1253 u32 conn_id; 1254 1255 conn_id = destroy_kcqe->fcoe_conn_id; 1256 tgt = hba->tgt_ofld_list[conn_id]; 1257 if (!tgt) { 1258 printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n"); 1259 return; 1260 } 1261 1262 BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id); 1263 1264 if (destroy_kcqe->completion_status) { 1265 printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n", 1266 destroy_kcqe->completion_status); 1267 return; 1268 } else { 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); 1275 } 1276 } 1277 1278 static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code) 1279 { 1280 switch (err_code) { 1281 case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE: 1282 printk(KERN_ERR PFX "init_failure due to invalid opcode\n"); 1283 break; 1284 1285 case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE: 1286 printk(KERN_ERR PFX "init failed due to ctx alloc failure\n"); 1287 break; 1288 1289 case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR: 1290 printk(KERN_ERR PFX "init_failure due to NIC error\n"); 1291 break; 1292 case FCOE_KCQE_COMPLETION_STATUS_ERROR: 1293 printk(KERN_ERR PFX "init failure due to compl status err\n"); 1294 break; 1295 case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION: 1296 printk(KERN_ERR PFX "init failure due to HSI mismatch\n"); 1297 break; 1298 default: 1299 printk(KERN_ERR PFX "Unknown Error code %d\n", err_code); 1300 } 1301 } 1302 1303 /** 1304 * bnx2fc_indicae_kcqe - process KCQE 1305 * 1306 * @hba: adapter structure pointer 1307 * @kcqe: kcqe pointer 1308 * @num_cqe: Number of completion queue elements 1309 * 1310 * Generic KCQ event handler 1311 */ 1312 void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[], 1313 u32 num_cqe) 1314 { 1315 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context; 1316 int i = 0; 1317 struct fcoe_kcqe *kcqe = NULL; 1318 1319 while (i < num_cqe) { 1320 kcqe = (struct fcoe_kcqe *) kcq[i++]; 1321 1322 switch (kcqe->op_code) { 1323 case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION: 1324 bnx2fc_fastpath_notification(hba, kcqe); 1325 break; 1326 1327 case FCOE_KCQE_OPCODE_OFFLOAD_CONN: 1328 bnx2fc_process_ofld_cmpl(hba, kcqe); 1329 break; 1330 1331 case FCOE_KCQE_OPCODE_ENABLE_CONN: 1332 bnx2fc_process_enable_conn_cmpl(hba, kcqe); 1333 break; 1334 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); 1340 } else { 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); 1345 } 1346 break; 1347 1348 case FCOE_KCQE_OPCODE_DESTROY_FUNC: 1349 if (kcqe->completion_status != 1350 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) { 1351 1352 printk(KERN_ERR PFX "DESTROY failed\n"); 1353 } else { 1354 printk(KERN_ERR PFX "DESTROY success\n"); 1355 } 1356 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); 1357 wake_up_interruptible(&hba->destroy_wait); 1358 break; 1359 1360 case FCOE_KCQE_OPCODE_DISABLE_CONN: 1361 bnx2fc_process_conn_disable_cmpl(hba, kcqe); 1362 break; 1363 1364 case FCOE_KCQE_OPCODE_DESTROY_CONN: 1365 bnx2fc_process_conn_destroy_cmpl(hba, kcqe); 1366 break; 1367 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); 1373 break; 1374 1375 case FCOE_KCQE_OPCODE_FCOE_ERROR: 1376 /* fall thru */ 1377 default: 1378 printk(KERN_ERR PFX "unknown opcode 0x%x\n", 1379 kcqe->op_code); 1380 } 1381 } 1382 } 1383 1384 void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid) 1385 { 1386 struct fcoe_sqe *sqe; 1387 1388 sqe = &tgt->sq[tgt->sq_prod_idx]; 1389 1390 /* Fill SQ WQE */ 1391 sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT; 1392 sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT; 1393 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; 1398 } 1399 } 1400 1401 void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt) 1402 { 1403 struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db; 1404 u32 msg; 1405 1406 wmb(); 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); 1411 mmiowb(); 1412 1413 } 1414 1415 int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt) 1416 { 1417 u32 context_id = tgt->context_id; 1418 struct fcoe_port *port = tgt->port; 1419 u32 reg_off; 1420 resource_size_t reg_base; 1421 struct bnx2fc_interface *interface = port->priv; 1422 struct bnx2fc_hba *hba = interface->hba; 1423 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); 1428 if (!tgt->ctx_base) 1429 return -ENOMEM; 1430 return 0; 1431 } 1432 1433 char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items) 1434 { 1435 char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ); 1436 1437 if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX) 1438 return NULL; 1439 1440 tgt->rq_cons_idx += num_items; 1441 1442 if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX) 1443 tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX; 1444 1445 return buf; 1446 } 1447 1448 void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items) 1449 { 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; 1455 } 1456 tgt->rq_prod_idx = next_prod_idx; 1457 tgt->conn_db->rq_prod = tgt->rq_prod_idx; 1458 } 1459 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, 1463 u32 offset) 1464 { 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; 1473 u8 orig_task_type; 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; 1478 int bd_count; 1479 int orig_task_idx, index; 1480 int i; 1481 1482 memset(task, 0, sizeof(struct fcoe_task_ctx_entry)); 1483 1484 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) 1485 orig_task_type = FCOE_TASK_TYPE_WRITE; 1486 else 1487 orig_task_type = FCOE_TASK_TYPE_READ; 1488 1489 /* Tx flags */ 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; 1493 /* init flags */ 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; 1502 1503 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid; 1504 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; 1507 1508 bd_count = orig_io_req->bd_tbl->bd_valid; 1509 1510 /* obtain the appropriate bd entry from relative offset */ 1511 for (i = 0; i < bd_count; i++) { 1512 if (offset < bd[i].buf_len) 1513 break; 1514 offset -= bd[i].buf_len; 1515 } 1516 phys_addr += (i * sizeof(struct fcoe_bd_ctx)); 1517 1518 if (orig_task_type == FCOE_TASK_TYPE_WRITE) { 1519 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo = 1520 (u32)phys_addr; 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 = 1524 bd_count; 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; 1528 } else { 1529 orig_task_idx = orig_xid / BNX2FC_TASKS_PER_PAGE; 1530 index = orig_xid % BNX2FC_TASKS_PER_PAGE; 1531 1532 task_page = (struct fcoe_task_ctx_entry *) 1533 interface->hba->task_ctx[orig_task_idx]; 1534 orig_task = &(task_page[index]); 1535 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; 1543 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; 1548 } 1549 } 1550 void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req, 1551 struct fcoe_task_ctx_entry *task, 1552 u16 orig_xid) 1553 { 1554 u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP; 1555 struct bnx2fc_rport *tgt = io_req->tgt; 1556 u32 context_id = tgt->context_id; 1557 1558 memset(task, 0, sizeof(struct fcoe_task_ctx_entry)); 1559 1560 /* Tx Write Rx Read */ 1561 /* init flags */ 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; 1570 else 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; 1575 1576 /* Tx flags */ 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; 1580 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; 1586 } 1587 1588 void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req, 1589 struct fcoe_task_ctx_entry *task) 1590 { 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; 1595 u8 task_type = 0; 1596 u64 *hdr; 1597 u64 temp_hdr[3]; 1598 u32 context_id; 1599 1600 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; 1607 } 1608 1609 memset(task, 0, sizeof(struct fcoe_task_ctx_entry)); 1610 1611 /* Setup the task from io_req for easy reference */ 1612 io_req->task = task; 1613 1614 BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n", 1615 io_req->cmd_type, task_type); 1616 1617 /* Tx only */ 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; 1625 } 1626 1627 /* Tx Write Rx Read */ 1628 /* init flags */ 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; 1635 else 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; 1641 1642 /* tx flags */ 1643 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT << 1644 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT; 1645 1646 /* Rx Write Tx Read */ 1647 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len; 1648 1649 /* rx flags */ 1650 task->rxwr_txrd.var_ctx.rx_flags |= 1 << 1651 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT; 1652 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; 1656 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); 1664 } 1665 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]); 1672 1673 /* Rx Only */ 1674 if (task_type == FCOE_TASK_TYPE_MIDPATH) { 1675 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl; 1676 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; 1681 } 1682 } 1683 1684 void bnx2fc_init_task(struct bnx2fc_cmd *io_req, 1685 struct fcoe_task_ctx_entry *task) 1686 { 1687 u8 task_type; 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; 1694 u64 *fcp_cmnd; 1695 u64 tmp_fcp_cmnd[4]; 1696 u32 context_id; 1697 int cnt, i; 1698 int bd_count; 1699 1700 memset(task, 0, sizeof(struct fcoe_task_ctx_entry)); 1701 1702 /* Setup the task from io_req for easy reference */ 1703 io_req->task = task; 1704 1705 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) 1706 task_type = FCOE_TASK_TYPE_WRITE; 1707 else 1708 task_type = FCOE_TASK_TYPE_READ; 1709 1710 /* Tx only */ 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; 1716 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; 1726 1727 task->txwr_rxrd.const_ctx.init_flags |= 1 << 1728 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT; 1729 } else { 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 = 1735 bd_tbl->bd_valid; 1736 } 1737 } 1738 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; 1749 } else 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; 1755 /* tx flags */ 1756 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL << 1757 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT; 1758 1759 /* Set initial seq counter */ 1760 task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1; 1761 1762 /* Fill FCP_CMND IU */ 1763 fcp_cmnd = (u64 *) 1764 task->txwr_rxrd.union_ctx.fcp_cmd.opaque; 1765 bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd); 1766 1767 /* swap fcp_cmnd */ 1768 cnt = sizeof(struct fcp_cmnd) / sizeof(u64); 1769 1770 for (i = 0; i < cnt; i++) { 1771 *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]); 1772 fcp_cmnd++; 1773 } 1774 1775 /* Rx Write Tx Read */ 1776 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len; 1777 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; 1781 1782 /* rx flags */ 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; 1786 1787 task->rxwr_txrd.var_ctx.rx_id = 0xffff; 1788 1789 /* Rx Only */ 1790 if (task_type != FCOE_TASK_TYPE_READ) 1791 return; 1792 1793 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl; 1794 bd_count = bd_tbl->bd_valid; 1795 1796 if (dev_type == TYPE_DISK) { 1797 if (bd_count == 1) { 1798 1799 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl; 1800 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; 1808 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; 1812 1813 fcoe_bd_tbl++; 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; 1821 } else { 1822 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; 1827 } 1828 } else { 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; 1833 } 1834 } 1835 1836 /** 1837 * bnx2fc_setup_task_ctx - allocate and map task context 1838 * 1839 * @hba: pointer to adapter structure 1840 * 1841 * allocate memory for task context, and associated BD table to be used 1842 * by firmware 1843 * 1844 */ 1845 int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba) 1846 { 1847 int rc = 0; 1848 struct regpair *task_ctx_bdt; 1849 dma_addr_t addr; 1850 int task_ctx_arr_sz; 1851 int i; 1852 1853 /* 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 1857 * entries. 1858 */ 1859 hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev, 1860 PAGE_SIZE, 1861 &hba->task_ctx_bd_dma, 1862 GFP_KERNEL); 1863 if (!hba->task_ctx_bd_tbl) { 1864 printk(KERN_ERR PFX "unable to allocate task context BDT\n"); 1865 rc = -1; 1866 goto out; 1867 } 1868 memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE); 1869 1870 /* 1871 * Allocate task_ctx which is an array of pointers pointing to 1872 * a page containing 32 task contexts 1873 */ 1874 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE); 1875 hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)), 1876 GFP_KERNEL); 1877 if (!hba->task_ctx) { 1878 printk(KERN_ERR PFX "unable to allocate task context array\n"); 1879 rc = -1; 1880 goto out1; 1881 } 1882 1883 /* 1884 * Allocate task_ctx_dma which is an array of dma addresses 1885 */ 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"); 1890 rc = -1; 1891 goto out2; 1892 } 1893 1894 task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl; 1895 for (i = 0; i < task_ctx_arr_sz; i++) { 1896 1897 hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev, 1898 PAGE_SIZE, 1899 &hba->task_ctx_dma[i], 1900 GFP_KERNEL); 1901 if (!hba->task_ctx[i]) { 1902 printk(KERN_ERR PFX "unable to alloc task context\n"); 1903 rc = -1; 1904 goto out3; 1905 } 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); 1910 task_ctx_bdt++; 1911 } 1912 return 0; 1913 1914 out3: 1915 for (i = 0; i < task_ctx_arr_sz; i++) { 1916 if (hba->task_ctx[i]) { 1917 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; 1921 } 1922 } 1923 1924 kfree(hba->task_ctx_dma); 1925 hba->task_ctx_dma = NULL; 1926 out2: 1927 kfree(hba->task_ctx); 1928 hba->task_ctx = NULL; 1929 out1: 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; 1933 out: 1934 return rc; 1935 } 1936 1937 void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba) 1938 { 1939 int task_ctx_arr_sz; 1940 int i; 1941 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; 1947 } 1948 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, 1954 hba->task_ctx[i], 1955 hba->task_ctx_dma[i]); 1956 hba->task_ctx[i] = NULL; 1957 } 1958 } 1959 kfree(hba->task_ctx); 1960 hba->task_ctx = NULL; 1961 } 1962 1963 kfree(hba->task_ctx_dma); 1964 hba->task_ctx_dma = NULL; 1965 } 1966 1967 static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba) 1968 { 1969 int i; 1970 int segment_count; 1971 u32 *pbl; 1972 1973 if (hba->hash_tbl_segments) { 1974 1975 pbl = hba->hash_tbl_pbl; 1976 if (pbl) { 1977 segment_count = hba->hash_tbl_segment_count; 1978 for (i = 0; i < segment_count; ++i) { 1979 dma_addr_t dma_address; 1980 1981 dma_address = le32_to_cpu(*pbl); 1982 ++pbl; 1983 dma_address += ((u64)le32_to_cpu(*pbl)) << 32; 1984 ++pbl; 1985 dma_free_coherent(&hba->pcidev->dev, 1986 BNX2FC_HASH_TBL_CHUNK_SIZE, 1987 hba->hash_tbl_segments[i], 1988 dma_address); 1989 } 1990 } 1991 1992 kfree(hba->hash_tbl_segments); 1993 hba->hash_tbl_segments = NULL; 1994 } 1995 1996 if (hba->hash_tbl_pbl) { 1997 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE, 1998 hba->hash_tbl_pbl, 1999 hba->hash_tbl_pbl_dma); 2000 hba->hash_tbl_pbl = NULL; 2001 } 2002 } 2003 2004 static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba) 2005 { 2006 int i; 2007 int hash_table_size; 2008 int segment_count; 2009 int segment_array_size; 2010 int dma_segment_array_size; 2011 dma_addr_t *dma_segment_array; 2012 u32 *pbl; 2013 2014 hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL * 2015 sizeof(struct fcoe_hash_table_entry); 2016 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; 2020 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"); 2025 return -ENOMEM; 2026 } 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"); 2031 goto cleanup_ht; 2032 } 2033 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], 2039 GFP_KERNEL); 2040 if (!hba->hash_tbl_segments[i]) { 2041 printk(KERN_ERR PFX "hash segment alloc failed\n"); 2042 goto cleanup_dma; 2043 } 2044 memset(hba->hash_tbl_segments[i], 0, 2045 BNX2FC_HASH_TBL_CHUNK_SIZE); 2046 } 2047 2048 hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev, 2049 PAGE_SIZE, 2050 &hba->hash_tbl_pbl_dma, 2051 GFP_KERNEL); 2052 if (!hba->hash_tbl_pbl) { 2053 printk(KERN_ERR PFX "hash table pbl alloc failed\n"); 2054 goto cleanup_dma; 2055 } 2056 memset(hba->hash_tbl_pbl, 0, PAGE_SIZE); 2057 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); 2062 ++pbl; 2063 *pbl = cpu_to_le32((u32) (paddr >> 32)); 2064 ++pbl; 2065 } 2066 pbl = hba->hash_tbl_pbl; 2067 i = 0; 2068 while (*pbl && *(pbl + 1)) { 2069 u32 lo; 2070 u32 hi; 2071 lo = *pbl; 2072 ++pbl; 2073 hi = *pbl; 2074 ++pbl; 2075 ++i; 2076 } 2077 kfree(dma_segment_array); 2078 return 0; 2079 2080 cleanup_dma: 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]); 2087 } 2088 2089 kfree(dma_segment_array); 2090 2091 cleanup_ht: 2092 kfree(hba->hash_tbl_segments); 2093 hba->hash_tbl_segments = NULL; 2094 return -ENOMEM; 2095 } 2096 2097 /** 2098 * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer 2099 * 2100 * @hba: Pointer to adapter structure 2101 * 2102 */ 2103 int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba) 2104 { 2105 u64 addr; 2106 u32 mem_size; 2107 int i; 2108 2109 if (bnx2fc_allocate_hash_table(hba)) 2110 return -ENOMEM; 2111 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, 2115 GFP_KERNEL); 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); 2119 return -ENOMEM; 2120 } 2121 memset(hba->t2_hash_tbl_ptr, 0x00, mem_size); 2122 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, 2127 GFP_KERNEL); 2128 if (!hba->t2_hash_tbl) { 2129 printk(KERN_ERR PFX "unable to allocate t2 hash table\n"); 2130 bnx2fc_free_fw_resc(hba); 2131 return -ENOMEM; 2132 } 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; 2139 } 2140 2141 hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev, 2142 PAGE_SIZE, &hba->dummy_buf_dma, 2143 GFP_KERNEL); 2144 if (!hba->dummy_buffer) { 2145 printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n"); 2146 bnx2fc_free_fw_resc(hba); 2147 return -ENOMEM; 2148 } 2149 2150 hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev, 2151 PAGE_SIZE, 2152 &hba->stats_buf_dma, 2153 GFP_KERNEL); 2154 if (!hba->stats_buffer) { 2155 printk(KERN_ERR PFX "unable to alloc Stats Buffer\n"); 2156 bnx2fc_free_fw_resc(hba); 2157 return -ENOMEM; 2158 } 2159 memset(hba->stats_buffer, 0x00, PAGE_SIZE); 2160 2161 return 0; 2162 } 2163 2164 void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba) 2165 { 2166 u32 mem_size; 2167 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; 2172 } 2173 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; 2178 } 2179 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; 2186 } 2187 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; 2194 } 2195 bnx2fc_free_hash_table(hba); 2196 } 2197