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1/*2 * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI3 * Host Bus Adapters. Refer to the README file included with this package4 * for driver version and adapter compatibility.5 *6 * Copyright (c) 2018 Broadcom. All Rights Reserved.7 * The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.8 *9 * This program is free software; you can redistribute it and/or modify it10 * under the terms of version 2 of the GNU General Public License as published11 * by the Free Software Foundation.12 *13 * This program is distributed in the hope that it will be useful. ALL EXPRESS14 * OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY15 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,16 * OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH17 * DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.18 * See the GNU General Public License for more details, a copy of which19 * can be found in the file COPYING included with this package.20 *21 * Contact Information:22 * linux-drivers@broadcom.com23 *24 */25 26#include <linux/bsg-lib.h>27#include <scsi/scsi_transport_iscsi.h>28#include <scsi/scsi_bsg_iscsi.h>29#include "be_mgmt.h"30#include "be_iscsi.h"31#include "be_main.h"32 33unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,34 struct beiscsi_hba *phba,35 struct bsg_job *job,36 struct be_dma_mem *nonemb_cmd)37{38 struct be_mcc_wrb *wrb;39 struct be_sge *mcc_sge;40 unsigned int tag = 0;41 struct iscsi_bsg_request *bsg_req = job->request;42 struct be_bsg_vendor_cmd *req = nonemb_cmd->va;43 unsigned short region, sector_size, sector, offset;44 45 nonemb_cmd->size = job->request_payload.payload_len;46 memset(nonemb_cmd->va, 0, nonemb_cmd->size);47 region = bsg_req->rqst_data.h_vendor.vendor_cmd[1];48 sector_size = bsg_req->rqst_data.h_vendor.vendor_cmd[2];49 sector = bsg_req->rqst_data.h_vendor.vendor_cmd[3];50 offset = bsg_req->rqst_data.h_vendor.vendor_cmd[4];51 req->region = region;52 req->sector = sector;53 req->offset = offset;54 55 if (mutex_lock_interruptible(&ctrl->mbox_lock))56 return 0;57 switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {58 case BEISCSI_WRITE_FLASH:59 offset = sector * sector_size + offset;60 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,61 OPCODE_COMMON_WRITE_FLASH, sizeof(*req));62 sg_copy_to_buffer(job->request_payload.sg_list,63 job->request_payload.sg_cnt,64 nonemb_cmd->va + offset, job->request_len);65 break;66 case BEISCSI_READ_FLASH:67 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,68 OPCODE_COMMON_READ_FLASH, sizeof(*req));69 break;70 default:71 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,72 "BG_%d : Unsupported cmd = 0x%x\n\n",73 bsg_req->rqst_data.h_vendor.vendor_cmd[0]);74 75 mutex_unlock(&ctrl->mbox_lock);76 return -EPERM;77 }78 79 wrb = alloc_mcc_wrb(phba, &tag);80 if (!wrb) {81 mutex_unlock(&ctrl->mbox_lock);82 return 0;83 }84 85 mcc_sge = nonembedded_sgl(wrb);86 be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,87 job->request_payload.sg_cnt);88 mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));89 mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);90 mcc_sge->len = cpu_to_le32(nonemb_cmd->size);91 92 be_mcc_notify(phba, tag);93 94 mutex_unlock(&ctrl->mbox_lock);95 return tag;96}97 98/**99 * mgmt_open_connection()- Establish a TCP CXN100 * @phba: driver priv structure101 * @dst_addr: Destination Address102 * @beiscsi_ep: ptr to device endpoint struct103 * @nonemb_cmd: ptr to memory allocated for command104 *105 * return106 * Success: Tag number of the MBX Command issued107 * Failure: Error code108 **/109int mgmt_open_connection(struct beiscsi_hba *phba,110 struct sockaddr *dst_addr,111 struct beiscsi_endpoint *beiscsi_ep,112 struct be_dma_mem *nonemb_cmd)113{114 struct hwi_controller *phwi_ctrlr;115 struct hwi_context_memory *phwi_context;116 struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;117 struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;118 struct be_ctrl_info *ctrl = &phba->ctrl;119 struct be_mcc_wrb *wrb;120 struct tcp_connect_and_offload_in_v1 *req;121 unsigned short def_hdr_id;122 unsigned short def_data_id;123 struct phys_addr template_address = { 0, 0 };124 struct phys_addr *ptemplate_address;125 unsigned int tag = 0;126 unsigned int i, ulp_num;127 unsigned short cid = beiscsi_ep->ep_cid;128 struct be_sge *sge;129 130 if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) {131 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,132 "BG_%d : unknown addr family %d\n",133 dst_addr->sa_family);134 return 0;135 }136 137 phwi_ctrlr = phba->phwi_ctrlr;138 phwi_context = phwi_ctrlr->phwi_ctxt;139 140 ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;141 142 def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);143 def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);144 145 ptemplate_address = &template_address;146 ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);147 if (mutex_lock_interruptible(&ctrl->mbox_lock))148 return 0;149 wrb = alloc_mcc_wrb(phba, &tag);150 if (!wrb) {151 mutex_unlock(&ctrl->mbox_lock);152 return 0;153 }154 155 sge = nonembedded_sgl(wrb);156 req = nonemb_cmd->va;157 memset(req, 0, sizeof(*req));158 159 be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);160 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,161 OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,162 nonemb_cmd->size);163 if (dst_addr->sa_family == PF_INET) {164 __be32 s_addr = daddr_in->sin_addr.s_addr;165 req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;166 req->ip_address.addr[0] = s_addr & 0x000000ff;167 req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;168 req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;169 req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;170 req->tcp_port = ntohs(daddr_in->sin_port);171 beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;172 beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);173 beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;174 } else {175 /* else its PF_INET6 family */176 req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;177 memcpy(&req->ip_address.addr,178 &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);179 req->tcp_port = ntohs(daddr_in6->sin6_port);180 beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);181 memcpy(&beiscsi_ep->dst6_addr,182 &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);183 beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;184 }185 req->cid = cid;186 i = phba->nxt_cqid++;187 if (phba->nxt_cqid == phba->num_cpus)188 phba->nxt_cqid = 0;189 req->cq_id = phwi_context->be_cq[i].id;190 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,191 "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);192 req->defq_id = def_hdr_id;193 req->hdr_ring_id = def_hdr_id;194 req->data_ring_id = def_data_id;195 req->do_offload = 1;196 req->dataout_template_pa.lo = ptemplate_address->lo;197 req->dataout_template_pa.hi = ptemplate_address->hi;198 sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));199 sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);200 sge->len = cpu_to_le32(nonemb_cmd->size);201 202 if (!is_chip_be2_be3r(phba)) {203 req->hdr.version = MBX_CMD_VER1;204 req->tcp_window_size = 0x8000;205 req->tcp_window_scale_count = 2;206 }207 208 be_mcc_notify(phba, tag);209 mutex_unlock(&ctrl->mbox_lock);210 return tag;211}212 213/**214 * beiscsi_exec_nemb_cmd()- execute non-embedded MBX cmd215 * @phba: driver priv structure216 * @nonemb_cmd: DMA address of the MBX command to be issued217 * @cbfn: callback func on MCC completion218 * @resp_buf: buffer to copy the MBX cmd response219 * @resp_buf_len: response length to be copied220 *221 **/222static int beiscsi_exec_nemb_cmd(struct beiscsi_hba *phba,223 struct be_dma_mem *nonemb_cmd,224 void (*cbfn)(struct beiscsi_hba *,225 unsigned int),226 void *resp_buf, u32 resp_buf_len)227{228 struct be_ctrl_info *ctrl = &phba->ctrl;229 struct be_mcc_wrb *wrb;230 struct be_sge *sge;231 unsigned int tag;232 int rc = 0;233 234 mutex_lock(&ctrl->mbox_lock);235 wrb = alloc_mcc_wrb(phba, &tag);236 if (!wrb) {237 mutex_unlock(&ctrl->mbox_lock);238 return -ENOMEM;239 }240 241 sge = nonembedded_sgl(wrb);242 be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);243 sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));244 sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));245 sge->len = cpu_to_le32(nonemb_cmd->size);246 247 if (cbfn) {248 struct be_dma_mem *tag_mem;249 250 set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);251 ctrl->ptag_state[tag].cbfn = cbfn;252 tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;253 254 /* store DMA mem to be freed in callback */255 tag_mem->size = nonemb_cmd->size;256 tag_mem->va = nonemb_cmd->va;257 tag_mem->dma = nonemb_cmd->dma;258 }259 be_mcc_notify(phba, tag);260 mutex_unlock(&ctrl->mbox_lock);261 262 /* with cbfn set, its async cmd, don't wait */263 if (cbfn)264 return 0;265 266 rc = beiscsi_mccq_compl_wait(phba, tag, NULL, nonemb_cmd);267 268 /* copy the response, if any */269 if (resp_buf)270 memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);271 return rc;272}273 274static int beiscsi_prep_nemb_cmd(struct beiscsi_hba *phba,275 struct be_dma_mem *cmd,276 u8 subsystem, u8 opcode, u32 size)277{278 cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev, size, &cmd->dma,279 GFP_KERNEL);280 if (!cmd->va) {281 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,282 "BG_%d : Failed to allocate memory for if info\n");283 return -ENOMEM;284 }285 cmd->size = size;286 be_cmd_hdr_prepare(cmd->va, subsystem, opcode, size);287 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,288 "BG_%d : subsystem %u cmd %u size %u\n",289 subsystem, opcode, size);290 return 0;291}292 293static void beiscsi_free_nemb_cmd(struct beiscsi_hba *phba,294 struct be_dma_mem *cmd, int rc)295{296 /*297 * If FW is busy the DMA buffer is saved with the tag. When the cmd298 * completes this buffer is freed.299 */300 if (rc == -EBUSY)301 return;302 303 dma_free_coherent(&phba->ctrl.pdev->dev, cmd->size, cmd->va, cmd->dma);304}305 306static void __beiscsi_eq_delay_compl(struct beiscsi_hba *phba, unsigned int tag)307{308 struct be_dma_mem *tag_mem;309 310 /* status is ignored */311 __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);312 tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;313 if (tag_mem->size) {314 dma_free_coherent(&phba->pcidev->dev, tag_mem->size,315 tag_mem->va, tag_mem->dma);316 tag_mem->size = 0;317 }318}319 320int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,321 struct be_set_eqd *set_eqd, int num)322{323 struct be_cmd_req_modify_eq_delay *req;324 struct be_dma_mem nonemb_cmd;325 int i, rc;326 327 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_COMMON,328 OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));329 if (rc)330 return rc;331 332 req = nonemb_cmd.va;333 req->num_eq = cpu_to_le32(num);334 for (i = 0; i < num; i++) {335 req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);336 req->delay[i].phase = 0;337 req->delay[i].delay_multiplier =338 cpu_to_le32(set_eqd[i].delay_multiplier);339 }340 341 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, __beiscsi_eq_delay_compl,342 NULL, 0);343 if (rc) {344 /*345 * Only free on failure. Async cmds are handled like -EBUSY346 * where it's handled for us.347 */348 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);349 }350 return rc;351}352 353/**354 * beiscsi_get_initiator_name - read initiator name from flash355 * @phba: device priv structure356 * @name: buffer pointer357 * @cfg: fetch user configured358 *359 */360int beiscsi_get_initiator_name(struct beiscsi_hba *phba, char *name, bool cfg)361{362 struct be_dma_mem nonemb_cmd;363 struct be_cmd_hba_name resp;364 struct be_cmd_hba_name *req;365 int rc;366 367 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI_INI,368 OPCODE_ISCSI_INI_CFG_GET_HBA_NAME, sizeof(resp));369 if (rc)370 return rc;371 372 req = nonemb_cmd.va;373 if (cfg)374 req->hdr.version = 1;375 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,376 &resp, sizeof(resp));377 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);378 if (rc) {379 beiscsi_log(phba, KERN_ERR,380 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,381 "BS_%d : Initiator Name MBX Failed\n");382 return rc;383 }384 rc = sprintf(name, "%s\n", resp.initiator_name);385 return rc;386}387 388unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)389{390 struct be_ctrl_info *ctrl = &phba->ctrl;391 struct be_mcc_wrb *wrb;392 struct be_cmd_get_all_if_id_req *req;393 struct be_cmd_get_all_if_id_req *pbe_allid;394 unsigned int tag;395 int status = 0;396 397 if (mutex_lock_interruptible(&ctrl->mbox_lock))398 return -EINTR;399 wrb = alloc_mcc_wrb(phba, &tag);400 if (!wrb) {401 mutex_unlock(&ctrl->mbox_lock);402 return -ENOMEM;403 }404 405 req = embedded_payload(wrb);406 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);407 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,408 OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,409 sizeof(*req));410 be_mcc_notify(phba, tag);411 mutex_unlock(&ctrl->mbox_lock);412 413 status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);414 if (status) {415 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,416 "BG_%d : %s failed: %d\n", __func__, status);417 return -EBUSY;418 }419 420 pbe_allid = embedded_payload(wrb);421 /* we now support only one interface per function */422 phba->interface_handle = pbe_allid->if_hndl_list[0];423 424 return status;425}426 427static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)428{429 u32 len;430 431 len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;432 while (len && !ip[len - 1])433 len--;434 return (len == 0);435}436 437static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,438 u32 action, u32 ip_type, u8 *gw)439{440 struct be_cmd_set_def_gateway_req *req;441 struct be_dma_mem nonemb_cmd;442 int rt_val;443 444 rt_val = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,445 OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,446 sizeof(*req));447 if (rt_val)448 return rt_val;449 450 req = nonemb_cmd.va;451 req->action = action;452 req->ip_addr.ip_type = ip_type;453 memcpy(req->ip_addr.addr, gw,454 (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);455 rt_val = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);456 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rt_val);457 return rt_val;458}459 460int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)461{462 struct be_cmd_get_def_gateway_resp gw_resp;463 int rt_val;464 465 memset(&gw_resp, 0, sizeof(gw_resp));466 rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);467 if (rt_val) {468 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,469 "BG_%d : Failed to Get Gateway Addr\n");470 return rt_val;471 }472 473 if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {474 rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,475 gw_resp.ip_addr.addr);476 if (rt_val) {477 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,478 "BG_%d : Failed to clear Gateway Addr Set\n");479 return rt_val;480 }481 }482 483 rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);484 if (rt_val)485 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,486 "BG_%d : Failed to Set Gateway Addr\n");487 488 return rt_val;489}490 491int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,492 struct be_cmd_get_def_gateway_resp *resp)493{494 struct be_cmd_get_def_gateway_req *req;495 struct be_dma_mem nonemb_cmd;496 int rc;497 498 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,499 OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,500 sizeof(*resp));501 if (rc)502 return rc;503 504 req = nonemb_cmd.va;505 req->ip_type = ip_type;506 507 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, resp,508 sizeof(*resp));509 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);510 return rc;511}512 513static int514beiscsi_if_clr_ip(struct beiscsi_hba *phba,515 struct be_cmd_get_if_info_resp *if_info)516{517 struct be_cmd_set_ip_addr_req *req;518 struct be_dma_mem nonemb_cmd;519 int rc;520 521 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,522 OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,523 sizeof(*req));524 if (rc)525 return rc;526 527 req = nonemb_cmd.va;528 req->ip_params.record_entry_count = 1;529 req->ip_params.ip_record.action = IP_ACTION_DEL;530 req->ip_params.ip_record.interface_hndl =531 phba->interface_handle;532 req->ip_params.ip_record.ip_addr.size_of_structure =533 sizeof(struct be_ip_addr_subnet_format);534 req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;535 memcpy(req->ip_params.ip_record.ip_addr.addr,536 if_info->ip_addr.addr,537 sizeof(if_info->ip_addr.addr));538 memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,539 if_info->ip_addr.subnet_mask,540 sizeof(if_info->ip_addr.subnet_mask));541 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);542 if (rc < 0 || req->ip_params.ip_record.status) {543 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,544 "BG_%d : failed to clear IP: rc %d status %d\n",545 rc, req->ip_params.ip_record.status);546 }547 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);548 return rc;549}550 551static int552beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,553 u8 *subnet, u32 ip_type)554{555 struct be_cmd_set_ip_addr_req *req;556 struct be_dma_mem nonemb_cmd;557 uint32_t ip_len;558 int rc;559 560 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,561 OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,562 sizeof(*req));563 if (rc)564 return rc;565 566 req = nonemb_cmd.va;567 req->ip_params.record_entry_count = 1;568 req->ip_params.ip_record.action = IP_ACTION_ADD;569 req->ip_params.ip_record.interface_hndl =570 phba->interface_handle;571 req->ip_params.ip_record.ip_addr.size_of_structure =572 sizeof(struct be_ip_addr_subnet_format);573 req->ip_params.ip_record.ip_addr.ip_type = ip_type;574 ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;575 memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);576 if (subnet)577 memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,578 subnet, ip_len);579 580 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);581 /**582 * In some cases, host needs to look into individual record status583 * even though FW reported success for that IOCTL.584 */585 if (rc < 0 || req->ip_params.ip_record.status) {586 __beiscsi_log(phba, KERN_ERR,587 "BG_%d : failed to set IP: rc %d status %d\n",588 rc, req->ip_params.ip_record.status);589 if (req->ip_params.ip_record.status)590 rc = -EINVAL;591 }592 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);593 return rc;594}595 596int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,597 u8 *ip, u8 *subnet)598{599 struct be_cmd_get_if_info_resp *if_info;600 struct be_cmd_rel_dhcp_req *reldhcp;601 struct be_dma_mem nonemb_cmd;602 int rc;603 604 rc = beiscsi_if_get_info(phba, ip_type, &if_info);605 if (rc)606 return rc;607 608 if (if_info->dhcp_state) {609 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,610 CMD_SUBSYSTEM_ISCSI,611 OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,612 sizeof(*reldhcp));613 if (rc)614 goto exit;615 616 reldhcp = nonemb_cmd.va;617 reldhcp->interface_hndl = phba->interface_handle;618 reldhcp->ip_type = ip_type;619 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);620 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);621 if (rc < 0) {622 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,623 "BG_%d : failed to release existing DHCP: %d\n",624 rc);625 goto exit;626 }627 }628 629 /* first delete any IP set */630 if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {631 rc = beiscsi_if_clr_ip(phba, if_info);632 if (rc)633 goto exit;634 }635 636 /* if ip == NULL then this is called just to release DHCP IP */637 if (ip)638 rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);639exit:640 kfree(if_info);641 return rc;642}643 644int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)645{646 struct be_cmd_get_def_gateway_resp gw_resp;647 struct be_cmd_get_if_info_resp *if_info;648 struct be_cmd_set_dhcp_req *dhcpreq;649 struct be_dma_mem nonemb_cmd;650 u8 *gw;651 int rc;652 653 rc = beiscsi_if_get_info(phba, ip_type, &if_info);654 if (rc)655 return rc;656 657 if (if_info->dhcp_state) {658 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,659 "BG_%d : DHCP Already Enabled\n");660 goto exit;661 }662 663 /* first delete any IP set */664 if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {665 rc = beiscsi_if_clr_ip(phba, if_info);666 if (rc)667 goto exit;668 }669 670 /* delete gateway settings if mode change is to DHCP */671 memset(&gw_resp, 0, sizeof(gw_resp));672 /* use ip_type provided in if_info */673 rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);674 if (rc) {675 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,676 "BG_%d : Failed to Get Gateway Addr\n");677 goto exit;678 }679 gw = (u8 *)&gw_resp.ip_addr.addr;680 if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {681 rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,682 if_info->ip_addr.ip_type, gw);683 if (rc) {684 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,685 "BG_%d : Failed to clear Gateway Addr Set\n");686 goto exit;687 }688 }689 690 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,691 OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,692 sizeof(*dhcpreq));693 if (rc)694 goto exit;695 696 dhcpreq = nonemb_cmd.va;697 dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */698 dhcpreq->retry_count = 1;699 dhcpreq->interface_hndl = phba->interface_handle;700 dhcpreq->ip_type = ip_type;701 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);702 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);703exit:704 kfree(if_info);705 return rc;706}707 708/**709 * beiscsi_if_set_vlan()- Issue and wait for CMD completion710 * @phba: device private structure instance711 * @vlan_tag: VLAN tag712 *713 * Issue the MBX Cmd and wait for the completion of the714 * command.715 *716 * returns717 * Success: 0718 * Failure: Non-Xero Value719 **/720int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)721{722 int rc;723 unsigned int tag;724 725 tag = be_cmd_set_vlan(phba, vlan_tag);726 if (!tag) {727 beiscsi_log(phba, KERN_ERR,728 (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),729 "BG_%d : VLAN Setting Failed\n");730 return -EBUSY;731 }732 733 rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);734 if (rc) {735 beiscsi_log(phba, KERN_ERR,736 (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),737 "BS_%d : VLAN MBX Cmd Failed\n");738 return rc;739 }740 return rc;741}742 743 744int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,745 struct be_cmd_get_if_info_resp **if_info)746{747 struct be_cmd_get_if_info_req *req;748 struct be_dma_mem nonemb_cmd;749 uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);750 int rc;751 752 rc = beiscsi_if_get_handle(phba);753 if (rc)754 return rc;755 756 do {757 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,758 CMD_SUBSYSTEM_ISCSI,759 OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,760 ioctl_size);761 if (rc)762 return rc;763 764 req = nonemb_cmd.va;765 req->interface_hndl = phba->interface_handle;766 req->ip_type = ip_type;767 768 /* Allocate memory for if_info */769 *if_info = kzalloc(ioctl_size, GFP_KERNEL);770 if (!*if_info) {771 beiscsi_log(phba, KERN_ERR,772 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,773 "BG_%d : Memory Allocation Failure\n");774 775 beiscsi_free_nemb_cmd(phba, &nonemb_cmd,776 -ENOMEM);777 return -ENOMEM;778 }779 780 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, *if_info,781 ioctl_size);782 783 /* Check if the error is because of Insufficent_Buffer */784 if (rc == -EAGAIN) {785 786 /* Get the new memory size */787 ioctl_size = ((struct be_cmd_resp_hdr *)788 nonemb_cmd.va)->actual_resp_len;789 ioctl_size += sizeof(struct be_cmd_req_hdr);790 791 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);792 /* Free the virtual memory */793 kfree(*if_info);794 } else {795 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);796 break;797 }798 } while (true);799 return rc;800}801 802int mgmt_get_nic_conf(struct beiscsi_hba *phba,803 struct be_cmd_get_nic_conf_resp *nic)804{805 struct be_dma_mem nonemb_cmd;806 int rc;807 808 rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,809 OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,810 sizeof(*nic));811 if (rc)812 return rc;813 814 rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, nic, sizeof(*nic));815 beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);816 return rc;817}818 819static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,820 unsigned int tag)821{822 struct be_cmd_get_boot_target_resp *boot_resp;823 struct be_cmd_resp_logout_fw_sess *logo_resp;824 struct be_cmd_get_session_resp *sess_resp;825 struct be_mcc_wrb *wrb;826 struct boot_struct *bs;827 int boot_work, status;828 829 if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {830 __beiscsi_log(phba, KERN_ERR,831 "BG_%d : %s no boot work %lx\n",832 __func__, phba->state);833 return;834 }835 836 if (phba->boot_struct.tag != tag) {837 __beiscsi_log(phba, KERN_ERR,838 "BG_%d : %s tag mismatch %d:%d\n",839 __func__, tag, phba->boot_struct.tag);840 return;841 }842 bs = &phba->boot_struct;843 boot_work = 1;844 status = 0;845 switch (bs->action) {846 case BEISCSI_BOOT_REOPEN_SESS:847 status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);848 if (!status)849 bs->action = BEISCSI_BOOT_GET_SHANDLE;850 else851 bs->retry--;852 break;853 case BEISCSI_BOOT_GET_SHANDLE:854 status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);855 if (!status) {856 boot_resp = embedded_payload(wrb);857 bs->s_handle = boot_resp->boot_session_handle;858 }859 if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {860 bs->action = BEISCSI_BOOT_REOPEN_SESS;861 bs->retry--;862 } else {863 bs->action = BEISCSI_BOOT_GET_SINFO;864 }865 break;866 case BEISCSI_BOOT_GET_SINFO:867 status = __beiscsi_mcc_compl_status(phba, tag, NULL,868 &bs->nonemb_cmd);869 if (!status) {870 sess_resp = bs->nonemb_cmd.va;871 memcpy(&bs->boot_sess, &sess_resp->session_info,872 sizeof(struct mgmt_session_info));873 bs->action = BEISCSI_BOOT_LOGOUT_SESS;874 } else {875 __beiscsi_log(phba, KERN_ERR,876 "BG_%d : get boot session info error : 0x%x\n",877 status);878 boot_work = 0;879 }880 dma_free_coherent(&phba->ctrl.pdev->dev, bs->nonemb_cmd.size,881 bs->nonemb_cmd.va, bs->nonemb_cmd.dma);882 bs->nonemb_cmd.va = NULL;883 break;884 case BEISCSI_BOOT_LOGOUT_SESS:885 status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);886 if (!status) {887 logo_resp = embedded_payload(wrb);888 if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {889 __beiscsi_log(phba, KERN_ERR,890 "BG_%d : FW boot session logout error : 0x%x\n",891 logo_resp->session_status);892 }893 }894 /* continue to create boot_kset even if logout failed? */895 bs->action = BEISCSI_BOOT_CREATE_KSET;896 break;897 default:898 break;899 }900 901 /* clear the tag so no other completion matches this tag */902 bs->tag = 0;903 if (!bs->retry) {904 boot_work = 0;905 __beiscsi_log(phba, KERN_ERR,906 "BG_%d : failed to setup boot target: status %d action %d\n",907 status, bs->action);908 }909 if (!boot_work) {910 /* wait for next event to start boot_work */911 clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);912 return;913 }914 schedule_work(&phba->boot_work);915}916 917/**918 * beiscsi_boot_logout_sess()- Logout from boot FW session919 * @phba: Device priv structure instance920 *921 * return922 * the TAG used for MBOX Command923 *924 */925unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)926{927 struct be_ctrl_info *ctrl = &phba->ctrl;928 struct be_mcc_wrb *wrb;929 struct be_cmd_req_logout_fw_sess *req;930 unsigned int tag;931 932 mutex_lock(&ctrl->mbox_lock);933 wrb = alloc_mcc_wrb(phba, &tag);934 if (!wrb) {935 mutex_unlock(&ctrl->mbox_lock);936 return 0;937 }938 939 req = embedded_payload(wrb);940 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);941 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,942 OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,943 sizeof(struct be_cmd_req_logout_fw_sess));944 /* Use the session handle copied into boot_sess */945 req->session_handle = phba->boot_struct.boot_sess.session_handle;946 947 phba->boot_struct.tag = tag;948 set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);949 ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;950 951 be_mcc_notify(phba, tag);952 mutex_unlock(&ctrl->mbox_lock);953 954 return tag;955}956/**957 * beiscsi_boot_reopen_sess()- Reopen boot session958 * @phba: Device priv structure instance959 *960 * return961 * the TAG used for MBOX Command962 *963 **/964unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)965{966 struct be_ctrl_info *ctrl = &phba->ctrl;967 struct be_mcc_wrb *wrb;968 struct be_cmd_reopen_session_req *req;969 unsigned int tag;970 971 mutex_lock(&ctrl->mbox_lock);972 wrb = alloc_mcc_wrb(phba, &tag);973 if (!wrb) {974 mutex_unlock(&ctrl->mbox_lock);975 return 0;976 }977 978 req = embedded_payload(wrb);979 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);980 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,981 OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,982 sizeof(struct be_cmd_reopen_session_resp));983 req->reopen_type = BE_REOPEN_BOOT_SESSIONS;984 req->session_handle = BE_BOOT_INVALID_SHANDLE;985 986 phba->boot_struct.tag = tag;987 set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);988 ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;989 990 be_mcc_notify(phba, tag);991 mutex_unlock(&ctrl->mbox_lock);992 return tag;993}994 995 996/**997 * beiscsi_boot_get_sinfo()- Get boot session info998 * @phba: device priv structure instance999 *1000 * Fetches the boot_struct.s_handle info from FW.1001 * return1002 * the TAG used for MBOX Command1003 *1004 **/1005unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)1006{1007 struct be_ctrl_info *ctrl = &phba->ctrl;1008 struct be_cmd_get_session_req *req;1009 struct be_dma_mem *nonemb_cmd;1010 struct be_mcc_wrb *wrb;1011 struct be_sge *sge;1012 unsigned int tag;1013 1014 mutex_lock(&ctrl->mbox_lock);1015 wrb = alloc_mcc_wrb(phba, &tag);1016 if (!wrb) {1017 mutex_unlock(&ctrl->mbox_lock);1018 return 0;1019 }1020 1021 nonemb_cmd = &phba->boot_struct.nonemb_cmd;1022 nonemb_cmd->size = sizeof(struct be_cmd_get_session_resp);1023 nonemb_cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev,1024 nonemb_cmd->size,1025 &nonemb_cmd->dma,1026 GFP_KERNEL);1027 if (!nonemb_cmd->va) {1028 mutex_unlock(&ctrl->mbox_lock);1029 return 0;1030 }1031 1032 req = nonemb_cmd->va;1033 memset(req, 0, sizeof(*req));1034 sge = nonembedded_sgl(wrb);1035 be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);1036 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,1037 OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,1038 sizeof(struct be_cmd_get_session_resp));1039 req->session_handle = phba->boot_struct.s_handle;1040 sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));1041 sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);1042 sge->len = cpu_to_le32(nonemb_cmd->size);1043 1044 phba->boot_struct.tag = tag;1045 set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);1046 ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;1047 1048 be_mcc_notify(phba, tag);1049 mutex_unlock(&ctrl->mbox_lock);1050 return tag;1051}1052 1053unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)1054{1055 struct be_ctrl_info *ctrl = &phba->ctrl;1056 struct be_mcc_wrb *wrb;1057 struct be_cmd_get_boot_target_req *req;1058 unsigned int tag;1059 1060 mutex_lock(&ctrl->mbox_lock);1061 wrb = alloc_mcc_wrb(phba, &tag);1062 if (!wrb) {1063 mutex_unlock(&ctrl->mbox_lock);1064 return 0;1065 }1066 1067 req = embedded_payload(wrb);1068 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);1069 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,1070 OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,1071 sizeof(struct be_cmd_get_boot_target_resp));1072 1073 if (async) {1074 phba->boot_struct.tag = tag;1075 set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);1076 ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;1077 }1078 1079 be_mcc_notify(phba, tag);1080 mutex_unlock(&ctrl->mbox_lock);1081 return tag;1082}1083 1084/**1085 * beiscsi_boot_get_shandle()- Get boot session handle1086 * @phba: device priv structure instance1087 * @s_handle: session handle returned for boot session.1088 *1089 * return1090 * Success: 11091 * Failure: negative1092 *1093 **/1094int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)1095{1096 struct be_cmd_get_boot_target_resp *boot_resp;1097 struct be_mcc_wrb *wrb;1098 unsigned int tag;1099 int rc;1100 1101 *s_handle = BE_BOOT_INVALID_SHANDLE;1102 /* get configured boot session count and handle */1103 tag = __beiscsi_boot_get_shandle(phba, 0);1104 if (!tag) {1105 beiscsi_log(phba, KERN_ERR,1106 BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,1107 "BG_%d : Getting Boot Target Info Failed\n");1108 return -EAGAIN;1109 }1110 1111 rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);1112 if (rc) {1113 beiscsi_log(phba, KERN_ERR,1114 BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,1115 "BG_%d : MBX CMD get_boot_target Failed\n");1116 return -EBUSY;1117 }1118 1119 boot_resp = embedded_payload(wrb);1120 /* check if there are any boot targets configured */1121 if (!boot_resp->boot_session_count) {1122 __beiscsi_log(phba, KERN_INFO,1123 "BG_%d : No boot targets configured\n");1124 return -ENXIO;1125 }1126 1127 /* only if FW has logged in to the boot target, s_handle is valid */1128 *s_handle = boot_resp->boot_session_handle;1129 return 1;1130}1131 1132/**1133 * beiscsi_drvr_ver_disp()- Display the driver Name and Version1134 * @dev: ptr to device not used.1135 * @attr: device attribute, not used.1136 * @buf: contains formatted text driver name and version1137 *1138 * return1139 * size of the formatted string1140 **/1141ssize_t1142beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,1143 char *buf)1144{1145 return snprintf(buf, PAGE_SIZE, BE_NAME "\n");1146}1147 1148/**1149 * beiscsi_fw_ver_disp()- Display Firmware Version1150 * @dev: ptr to device not used.1151 * @attr: device attribute, not used.1152 * @buf: contains formatted text Firmware version1153 *1154 * return1155 * size of the formatted string1156 **/1157ssize_t1158beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,1159 char *buf)1160{1161 struct Scsi_Host *shost = class_to_shost(dev);1162 struct beiscsi_hba *phba = iscsi_host_priv(shost);1163 1164 return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);1165}1166 1167/**1168 * beiscsi_active_session_disp()- Display Sessions Active1169 * @dev: ptr to device not used.1170 * @attr: device attribute, not used.1171 * @buf: contains formatted text Session Count1172 *1173 * return1174 * size of the formatted string1175 **/1176ssize_t1177beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,1178 char *buf)1179{1180 struct Scsi_Host *shost = class_to_shost(dev);1181 struct beiscsi_hba *phba = iscsi_host_priv(shost);1182 uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;1183 1184 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {1185 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {1186 avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);1187 total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);1188 len += scnprintf(buf+len, PAGE_SIZE - len,1189 "ULP%d : %d\n", ulp_num,1190 (total_cids - avlbl_cids));1191 } else1192 len += scnprintf(buf+len, PAGE_SIZE - len,1193 "ULP%d : %d\n", ulp_num, 0);1194 }1195 1196 return len;1197}1198 1199/**1200 * beiscsi_free_session_disp()- Display Avaliable Session1201 * @dev: ptr to device not used.1202 * @attr: device attribute, not used.1203 * @buf: contains formatted text Session Count1204 *1205 * return1206 * size of the formatted string1207 **/1208ssize_t1209beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,1210 char *buf)1211{1212 struct Scsi_Host *shost = class_to_shost(dev);1213 struct beiscsi_hba *phba = iscsi_host_priv(shost);1214 uint16_t ulp_num, len = 0;1215 1216 for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {1217 if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))1218 len += scnprintf(buf+len, PAGE_SIZE - len,1219 "ULP%d : %d\n", ulp_num,1220 BEISCSI_ULP_AVLBL_CID(phba, ulp_num));1221 else1222 len += scnprintf(buf+len, PAGE_SIZE - len,1223 "ULP%d : %d\n", ulp_num, 0);1224 }1225 1226 return len;1227}1228 1229/**1230 * beiscsi_adap_family_disp()- Display adapter family.1231 * @dev: ptr to device to get priv structure1232 * @attr: device attribute, not used.1233 * @buf: contains formatted text driver name and version1234 *1235 * return1236 * size of the formatted string1237 **/1238ssize_t1239beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,1240 char *buf)1241{1242 uint16_t dev_id = 0;1243 struct Scsi_Host *shost = class_to_shost(dev);1244 struct beiscsi_hba *phba = iscsi_host_priv(shost);1245 1246 dev_id = phba->pcidev->device;1247 switch (dev_id) {1248 case BE_DEVICE_ID1:1249 case OC_DEVICE_ID1:1250 case OC_DEVICE_ID2:1251 return snprintf(buf, PAGE_SIZE,1252 "Obsolete/Unsupported BE2 Adapter Family\n");1253 case BE_DEVICE_ID2:1254 case OC_DEVICE_ID3:1255 return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");1256 case OC_SKH_ID1:1257 return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");1258 default:1259 return snprintf(buf, PAGE_SIZE,1260 "Unknown Adapter Family: 0x%x\n", dev_id);1261 }1262}1263 1264/**1265 * beiscsi_phys_port_disp()- Display Physical Port Identifier1266 * @dev: ptr to device not used.1267 * @attr: device attribute, not used.1268 * @buf: contains formatted text port identifier1269 *1270 * return1271 * size of the formatted string1272 **/1273ssize_t1274beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,1275 char *buf)1276{1277 struct Scsi_Host *shost = class_to_shost(dev);1278 struct beiscsi_hba *phba = iscsi_host_priv(shost);1279 1280 return snprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",1281 phba->fw_config.phys_port);1282}1283 1284void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,1285 struct wrb_handle *pwrb_handle,1286 struct be_mem_descriptor *mem_descr,1287 struct hwi_wrb_context *pwrb_context)1288{1289 struct iscsi_wrb *pwrb = pwrb_handle->pwrb;1290 1291 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1292 max_send_data_segment_length, pwrb,1293 params->dw[offsetof(struct amap_beiscsi_offload_params,1294 max_send_data_segment_length) / 32]);1295 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,1296 BE_TGT_CTX_UPDT_CMD);1297 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1298 first_burst_length,1299 pwrb,1300 params->dw[offsetof(struct amap_beiscsi_offload_params,1301 first_burst_length) / 32]);1302 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,1303 (params->dw[offsetof(struct amap_beiscsi_offload_params,1304 erl) / 32] & OFFLD_PARAMS_ERL));1305 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,1306 (params->dw[offsetof(struct amap_beiscsi_offload_params,1307 dde) / 32] & OFFLD_PARAMS_DDE) >> 2);1308 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,1309 (params->dw[offsetof(struct amap_beiscsi_offload_params,1310 hde) / 32] & OFFLD_PARAMS_HDE) >> 3);1311 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,1312 (params->dw[offsetof(struct amap_beiscsi_offload_params,1313 ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);1314 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,1315 (params->dw[offsetof(struct amap_beiscsi_offload_params,1316 imd) / 32] & OFFLD_PARAMS_IMD) >> 5);1317 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,1318 pwrb,1319 (params->dw[offsetof(struct amap_beiscsi_offload_params,1320 exp_statsn) / 32] + 1));1321 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,1322 pwrb, pwrb_handle->wrb_index);1323 1324 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1325 max_burst_length, pwrb, params->dw[offsetof1326 (struct amap_beiscsi_offload_params,1327 max_burst_length) / 32]);1328 1329 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,1330 pwrb, pwrb_handle->wrb_index);1331 if (pwrb_context->plast_wrb)1332 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1333 ptr2nextwrb,1334 pwrb_context->plast_wrb,1335 pwrb_handle->wrb_index);1336 pwrb_context->plast_wrb = pwrb;1337 1338 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1339 session_state, pwrb, 0);1340 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,1341 pwrb, 1);1342 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,1343 pwrb, 0);1344 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,1345 0);1346 1347 mem_descr += ISCSI_MEM_GLOBAL_HEADER;1348 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1349 pad_buffer_addr_hi, pwrb,1350 mem_descr->mem_array[0].bus_address.u.a32.address_hi);1351 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,1352 pad_buffer_addr_lo, pwrb,1353 mem_descr->mem_array[0].bus_address.u.a32.address_lo);1354}1355 1356void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,1357 struct wrb_handle *pwrb_handle,1358 struct hwi_wrb_context *pwrb_context)1359{1360 struct iscsi_wrb *pwrb = pwrb_handle->pwrb;1361 1362 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1363 max_burst_length, pwrb, params->dw[offsetof1364 (struct amap_beiscsi_offload_params,1365 max_burst_length) / 32]);1366 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1367 type, pwrb,1368 BE_TGT_CTX_UPDT_CMD);1369 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1370 ptr2nextwrb,1371 pwrb, pwrb_handle->wrb_index);1372 if (pwrb_context->plast_wrb)1373 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1374 ptr2nextwrb,1375 pwrb_context->plast_wrb,1376 pwrb_handle->wrb_index);1377 pwrb_context->plast_wrb = pwrb;1378 1379 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,1380 pwrb, pwrb_handle->wrb_index);1381 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1382 max_send_data_segment_length, pwrb,1383 params->dw[offsetof(struct amap_beiscsi_offload_params,1384 max_send_data_segment_length) / 32]);1385 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1386 first_burst_length, pwrb,1387 params->dw[offsetof(struct amap_beiscsi_offload_params,1388 first_burst_length) / 32]);1389 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1390 max_recv_dataseg_len, pwrb,1391 params->dw[offsetof(struct amap_beiscsi_offload_params,1392 max_recv_data_segment_length) / 32]);1393 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1394 max_cxns, pwrb, BEISCSI_MAX_CXNS);1395 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,1396 (params->dw[offsetof(struct amap_beiscsi_offload_params,1397 erl) / 32] & OFFLD_PARAMS_ERL));1398 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,1399 (params->dw[offsetof(struct amap_beiscsi_offload_params,1400 dde) / 32] & OFFLD_PARAMS_DDE) >> 2);1401 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,1402 (params->dw[offsetof(struct amap_beiscsi_offload_params,1403 hde) / 32] & OFFLD_PARAMS_HDE) >> 3);1404 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1405 ir2t, pwrb,1406 (params->dw[offsetof(struct amap_beiscsi_offload_params,1407 ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);1408 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,1409 (params->dw[offsetof(struct amap_beiscsi_offload_params,1410 imd) / 32] & OFFLD_PARAMS_IMD) >> 5);1411 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1412 data_seq_inorder,1413 pwrb,1414 (params->dw[offsetof(struct amap_beiscsi_offload_params,1415 data_seq_inorder) / 32] &1416 OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);1417 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,1418 pdu_seq_inorder,1419 pwrb,1420 (params->dw[offsetof(struct amap_beiscsi_offload_params,1421 pdu_seq_inorder) / 32] &1422 OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);1423 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,1424 pwrb,1425 (params->dw[offsetof(struct amap_beiscsi_offload_params,1426 max_r2t) / 32] &1427 OFFLD_PARAMS_MAX_R2T) >> 8);1428 AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,1429 pwrb,1430 (params->dw[offsetof(struct amap_beiscsi_offload_params,1431 exp_statsn) / 32] + 1));1432}1433 1434unsigned int beiscsi_invalidate_cxn(struct beiscsi_hba *phba,1435 struct beiscsi_endpoint *beiscsi_ep)1436{1437 struct be_invalidate_connection_params_in *req;1438 struct be_ctrl_info *ctrl = &phba->ctrl;1439 struct be_mcc_wrb *wrb;1440 unsigned int tag = 0;1441 1442 mutex_lock(&ctrl->mbox_lock);1443 wrb = alloc_mcc_wrb(phba, &tag);1444 if (!wrb) {1445 mutex_unlock(&ctrl->mbox_lock);1446 return 0;1447 }1448 1449 req = embedded_payload(wrb);1450 be_wrb_hdr_prepare(wrb, sizeof(union be_invalidate_connection_params),1451 true, 0);1452 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,1453 OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,1454 sizeof(*req));1455 req->session_handle = beiscsi_ep->fw_handle;1456 req->cid = beiscsi_ep->ep_cid;1457 if (beiscsi_ep->conn)1458 req->cleanup_type = BE_CLEANUP_TYPE_INVALIDATE;1459 else1460 req->cleanup_type = BE_CLEANUP_TYPE_ISSUE_TCP_RST;1461 /**1462 * 0 - non-persistent targets1463 * 1 - save session info on flash1464 */1465 req->save_cfg = 0;1466 be_mcc_notify(phba, tag);1467 mutex_unlock(&ctrl->mbox_lock);1468 return tag;1469}1470 1471unsigned int beiscsi_upload_cxn(struct beiscsi_hba *phba,1472 struct beiscsi_endpoint *beiscsi_ep)1473{1474 struct be_ctrl_info *ctrl = &phba->ctrl;1475 struct be_mcc_wrb *wrb;1476 struct be_tcp_upload_params_in *req;1477 unsigned int tag;1478 1479 mutex_lock(&ctrl->mbox_lock);1480 wrb = alloc_mcc_wrb(phba, &tag);1481 if (!wrb) {1482 mutex_unlock(&ctrl->mbox_lock);1483 return 0;1484 }1485 1486 req = embedded_payload(wrb);1487 be_wrb_hdr_prepare(wrb, sizeof(union be_tcp_upload_params), true, 0);1488 be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,1489 OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));1490 req->id = beiscsi_ep->ep_cid;1491 if (beiscsi_ep->conn)1492 req->upload_type = BE_UPLOAD_TYPE_GRACEFUL;1493 else1494 req->upload_type = BE_UPLOAD_TYPE_ABORT;1495 be_mcc_notify(phba, tag);1496 mutex_unlock(&ctrl->mbox_lock);1497 return tag;1498}1499 1500int beiscsi_mgmt_invalidate_icds(struct beiscsi_hba *phba,1501 struct invldt_cmd_tbl *inv_tbl,1502 unsigned int nents)1503{1504 struct be_ctrl_info *ctrl = &phba->ctrl;1505 struct invldt_cmds_params_in *req;1506 struct be_dma_mem nonemb_cmd;1507 struct be_mcc_wrb *wrb;1508 unsigned int i, tag;1509 struct be_sge *sge;1510 int rc;1511 1512 if (!nents || nents > BE_INVLDT_CMD_TBL_SZ)1513 return -EINVAL;1514 1515 nonemb_cmd.size = sizeof(union be_invldt_cmds_params);1516 nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,1517 nonemb_cmd.size, &nonemb_cmd.dma,1518 GFP_KERNEL);1519 if (!nonemb_cmd.va) {1520 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,1521 "BM_%d : invldt_cmds_params alloc failed\n");1522 return -ENOMEM;1523 }1524 1525 mutex_lock(&ctrl->mbox_lock);1526 wrb = alloc_mcc_wrb(phba, &tag);1527 if (!wrb) {1528 mutex_unlock(&ctrl->mbox_lock);1529 dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,1530 nonemb_cmd.va, nonemb_cmd.dma);1531 return -ENOMEM;1532 }1533 1534 req = nonemb_cmd.va;1535 be_wrb_hdr_prepare(wrb, nonemb_cmd.size, false, 1);1536 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,1537 OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,1538 sizeof(*req));1539 req->ref_handle = 0;1540 req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;1541 for (i = 0; i < nents; i++) {1542 req->table[i].icd = inv_tbl[i].icd;1543 req->table[i].cid = inv_tbl[i].cid;1544 req->icd_count++;1545 }1546 sge = nonembedded_sgl(wrb);1547 sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));1548 sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd.dma));1549 sge->len = cpu_to_le32(nonemb_cmd.size);1550 1551 be_mcc_notify(phba, tag);1552 mutex_unlock(&ctrl->mbox_lock);1553 1554 rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);1555 if (rc != -EBUSY)1556 dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,1557 nonemb_cmd.va, nonemb_cmd.dma);1558 return rc;1559}1560