/** * Copyright (C) 2005 - 2013 Emulex * All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. The full GNU General * Public License is included in this distribution in the file called COPYING. * * Contact Information: * linux-drivers@emulex.com * * Emulex * 3333 Susan Street * Costa Mesa, CA 92626 */ #include #include "be.h" #include "be_mgmt.h" #include "be_main.h" int beiscsi_pci_soft_reset(struct beiscsi_hba *phba) { u32 sreset; u8 *pci_reset_offset = 0; u8 *pci_online0_offset = 0; u8 *pci_online1_offset = 0; u32 pconline0 = 0; u32 pconline1 = 0; u32 i; pci_reset_offset = (u8 *)phba->pci_va + BE2_SOFT_RESET; pci_online0_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE0; pci_online1_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE1; sreset = readl((void *)pci_reset_offset); sreset |= BE2_SET_RESET; writel(sreset, (void *)pci_reset_offset); i = 0; while (sreset & BE2_SET_RESET) { if (i > 64) break; msleep(100); sreset = readl((void *)pci_reset_offset); i++; } if (sreset & BE2_SET_RESET) { printk(KERN_ERR DRV_NAME " Soft Reset did not deassert\n"); return -EIO; } pconline1 = BE2_MPU_IRAM_ONLINE; writel(pconline0, (void *)pci_online0_offset); writel(pconline1, (void *)pci_online1_offset); sreset |= BE2_SET_RESET; writel(sreset, (void *)pci_reset_offset); i = 0; while (sreset & BE2_SET_RESET) { if (i > 64) break; msleep(1); sreset = readl((void *)pci_reset_offset); i++; } if (sreset & BE2_SET_RESET) { printk(KERN_ERR DRV_NAME " MPU Online Soft Reset did not deassert\n"); return -EIO; } return 0; } int be_chk_reset_complete(struct beiscsi_hba *phba) { unsigned int num_loop; u8 *mpu_sem = 0; u32 status; num_loop = 1000; mpu_sem = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; msleep(5000); while (num_loop) { status = readl((void *)mpu_sem); if ((status & 0x80000000) || (status & 0x0000FFFF) == 0xC000) break; msleep(60); num_loop--; } if ((status & 0x80000000) || (!num_loop)) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BC_%d : Failed in be_chk_reset_complete" "status = 0x%x\n", status); return -EIO; } return 0; } void be_mcc_notify(struct beiscsi_hba *phba) { struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; u32 val = 0; val |= mccq->id & DB_MCCQ_RING_ID_MASK; val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT; iowrite32(val, phba->db_va + DB_MCCQ_OFFSET); } unsigned int alloc_mcc_tag(struct beiscsi_hba *phba) { unsigned int tag = 0; if (phba->ctrl.mcc_tag_available) { tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index]; phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0; phba->ctrl.mcc_numtag[tag] = 0; } if (tag) { phba->ctrl.mcc_tag_available--; if (phba->ctrl.mcc_alloc_index == (MAX_MCC_CMD - 1)) phba->ctrl.mcc_alloc_index = 0; else phba->ctrl.mcc_alloc_index++; } return tag; } /* * beiscsi_mccq_compl()- Wait for completion of MBX * @phba: Driver private structure * @tag: Tag for the MBX Command * @wrb: the WRB used for the MBX Command * @cmd_hdr: IOCTL Hdr for the MBX Cmd * * Waits for MBX completion with the passed TAG. * * return * Success: 0 * Failure: Non-Zero **/ int beiscsi_mccq_compl(struct beiscsi_hba *phba, uint32_t tag, struct be_mcc_wrb **wrb, void *cmd_hdr) { int rc = 0; uint32_t mcc_tag_response; uint16_t status = 0, addl_status = 0, wrb_num = 0; struct be_mcc_wrb *temp_wrb; struct be_cmd_req_hdr *ioctl_hdr; struct be_cmd_resp_hdr *ioctl_resp_hdr; struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; if (beiscsi_error(phba)) return -EIO; /* wait for the mccq completion */ rc = wait_event_interruptible_timeout( phba->ctrl.mcc_wait[tag], phba->ctrl.mcc_numtag[tag], msecs_to_jiffies( BEISCSI_HOST_MBX_TIMEOUT)); if (rc <= 0) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT | BEISCSI_LOG_EH | BEISCSI_LOG_CONFIG, "BC_%d : MBX Cmd Completion timed out\n"); rc = -EAGAIN; /* decrement the mccq used count */ atomic_dec(&phba->ctrl.mcc_obj.q.used); goto release_mcc_tag; } else rc = 0; mcc_tag_response = phba->ctrl.mcc_numtag[tag]; status = (mcc_tag_response & CQE_STATUS_MASK); addl_status = ((mcc_tag_response & CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT); if (cmd_hdr) { ioctl_hdr = (struct be_cmd_req_hdr *)cmd_hdr; } else { wrb_num = (mcc_tag_response & CQE_STATUS_WRB_MASK) >> CQE_STATUS_WRB_SHIFT; temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num); ioctl_hdr = embedded_payload(temp_wrb); if (wrb) *wrb = temp_wrb; } if (status || addl_status) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT | BEISCSI_LOG_EH | BEISCSI_LOG_CONFIG, "BC_%d : MBX Cmd Failed for " "Subsys : %d Opcode : %d with " "Status : %d and Extd_Status : %d\n", ioctl_hdr->subsystem, ioctl_hdr->opcode, status, addl_status); if (status == MCC_STATUS_INSUFFICIENT_BUFFER) { ioctl_resp_hdr = (struct be_cmd_resp_hdr *) ioctl_hdr; if (ioctl_resp_hdr->response_length) goto release_mcc_tag; } rc = -EAGAIN; } release_mcc_tag: /* Release the MCC entry */ free_mcc_tag(&phba->ctrl, tag); return rc; } void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag) { spin_lock(&ctrl->mbox_lock); tag = tag & 0x000000FF; ctrl->mcc_tag[ctrl->mcc_free_index] = tag; if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1)) ctrl->mcc_free_index = 0; else ctrl->mcc_free_index++; ctrl->mcc_tag_available++; spin_unlock(&ctrl->mbox_lock); } bool is_link_state_evt(u32 trailer) { return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) & ASYNC_TRAILER_EVENT_CODE_MASK) == ASYNC_EVENT_CODE_LINK_STATE); } static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl) { if (compl->flags != 0) { compl->flags = le32_to_cpu(compl->flags); WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0); return true; } else return false; } static inline void be_mcc_compl_use(struct be_mcc_compl *compl) { compl->flags = 0; } /* * be_mcc_compl_process()- Check the MBX comapletion status * @ctrl: Function specific MBX data structure * @compl: Completion status of MBX Command * * Check for the MBX completion status when BMBX method used * * return * Success: Zero * Failure: Non-Zero **/ static int be_mcc_compl_process(struct be_ctrl_info *ctrl, struct be_mcc_compl *compl) { u16 compl_status, extd_status; struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); struct be_cmd_req_hdr *hdr = embedded_payload(wrb); struct be_cmd_resp_hdr *resp_hdr; be_dws_le_to_cpu(compl, 4); compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) & CQE_STATUS_COMPL_MASK; if (compl_status != MCC_STATUS_SUCCESS) { extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) & CQE_STATUS_EXTD_MASK; beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : error in cmd completion: " "Subsystem : %d Opcode : %d " "status(compl/extd)=%d/%d\n", hdr->subsystem, hdr->opcode, compl_status, extd_status); if (compl_status == MCC_STATUS_INSUFFICIENT_BUFFER) { resp_hdr = (struct be_cmd_resp_hdr *) hdr; if (resp_hdr->response_length) return 0; } return -EBUSY; } return 0; } int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl, struct be_mcc_compl *compl) { u16 compl_status, extd_status; unsigned short tag; be_dws_le_to_cpu(compl, 4); compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) & CQE_STATUS_COMPL_MASK; /* The ctrl.mcc_numtag[tag] is filled with * [31] = valid, [30:24] = Rsvd, [23:16] = wrb, [15:8] = extd_status, * [7:0] = compl_status */ tag = (compl->tag0 & 0x000000FF); extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) & CQE_STATUS_EXTD_MASK; ctrl->mcc_numtag[tag] = 0x80000000; ctrl->mcc_numtag[tag] |= (compl->tag0 & 0x00FF0000); ctrl->mcc_numtag[tag] |= (extd_status & 0x000000FF) << 8; ctrl->mcc_numtag[tag] |= (compl_status & 0x000000FF); wake_up_interruptible(&ctrl->mcc_wait[tag]); return 0; } static struct be_mcc_compl *be_mcc_compl_get(struct beiscsi_hba *phba) { struct be_queue_info *mcc_cq = &phba->ctrl.mcc_obj.cq; struct be_mcc_compl *compl = queue_tail_node(mcc_cq); if (be_mcc_compl_is_new(compl)) { queue_tail_inc(mcc_cq); return compl; } return NULL; } static void be2iscsi_fail_session(struct iscsi_cls_session *cls_session) { iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); } void beiscsi_async_link_state_process(struct beiscsi_hba *phba, struct be_async_event_link_state *evt) { if ((evt->port_link_status == ASYNC_EVENT_LINK_DOWN) || ((evt->port_link_status & ASYNC_EVENT_LOGICAL) && (evt->port_fault != BEISCSI_PHY_LINK_FAULT_NONE))) { phba->state = BE_ADAPTER_LINK_DOWN; beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT, "BC_%d : Link Down on Port %d\n", evt->physical_port); iscsi_host_for_each_session(phba->shost, be2iscsi_fail_session); } else if ((evt->port_link_status & ASYNC_EVENT_LINK_UP) || ((evt->port_link_status & ASYNC_EVENT_LOGICAL) && (evt->port_fault == BEISCSI_PHY_LINK_FAULT_NONE))) { phba->state = BE_ADAPTER_UP; beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT, "BC_%d : Link UP on Port %d\n", evt->physical_port); } } static void beiscsi_cq_notify(struct beiscsi_hba *phba, u16 qid, bool arm, u16 num_popped) { u32 val = 0; val |= qid & DB_CQ_RING_ID_MASK; if (arm) val |= 1 << DB_CQ_REARM_SHIFT; val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; iowrite32(val, phba->db_va + DB_CQ_OFFSET); } int beiscsi_process_mcc(struct beiscsi_hba *phba) { struct be_mcc_compl *compl; int num = 0, status = 0; struct be_ctrl_info *ctrl = &phba->ctrl; spin_lock_bh(&phba->ctrl.mcc_cq_lock); while ((compl = be_mcc_compl_get(phba))) { if (compl->flags & CQE_FLAGS_ASYNC_MASK) { /* Interpret flags as an async trailer */ if (is_link_state_evt(compl->flags)) /* Interpret compl as a async link evt */ beiscsi_async_link_state_process(phba, (struct be_async_event_link_state *) compl); else beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : Unsupported Async Event, flags" " = 0x%08x\n", compl->flags); } else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) { status = be_mcc_compl_process(ctrl, compl); atomic_dec(&phba->ctrl.mcc_obj.q.used); } be_mcc_compl_use(compl); num++; } if (num) beiscsi_cq_notify(phba, phba->ctrl.mcc_obj.cq.id, true, num); spin_unlock_bh(&phba->ctrl.mcc_cq_lock); return status; } /* * be_mcc_wait_compl()- Wait for MBX completion * @phba: driver private structure * * Wait till no more pending mcc requests are present * * return * Success: 0 * Failure: Non-Zero * **/ static int be_mcc_wait_compl(struct beiscsi_hba *phba) { int i, status; for (i = 0; i < mcc_timeout; i++) { if (beiscsi_error(phba)) return -EIO; status = beiscsi_process_mcc(phba); if (status) return status; if (atomic_read(&phba->ctrl.mcc_obj.q.used) == 0) break; udelay(100); } if (i == mcc_timeout) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : FW Timed Out\n"); phba->fw_timeout = true; beiscsi_ue_detect(phba); return -EBUSY; } return 0; } /* * be_mcc_notify_wait()- Notify and wait for Compl * @phba: driver private structure * * Notify MCC requests and wait for completion * * return * Success: 0 * Failure: Non-Zero **/ int be_mcc_notify_wait(struct beiscsi_hba *phba) { be_mcc_notify(phba); return be_mcc_wait_compl(phba); } /* * be_mbox_db_ready_wait()- Check ready status * @ctrl: Function specific MBX data structure * * Check for the ready status of FW to send BMBX * commands to adapter. * * return * Success: 0 * Failure: Non-Zero **/ static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl) { void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); uint32_t wait = 0; u32 ready; do { if (beiscsi_error(phba)) return -EIO; ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK; if (ready) break; if (wait > BEISCSI_HOST_MBX_TIMEOUT) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : FW Timed Out\n"); phba->fw_timeout = true; beiscsi_ue_detect(phba); return -EBUSY; } mdelay(1); wait++; } while (true); return 0; } /* * be_mbox_notify: Notify adapter of new BMBX command * @ctrl: Function specific MBX data structure * * Ring doorbell to inform adapter of a BMBX command * to process * * return * Success: 0 * Failure: Non-Zero **/ int be_mbox_notify(struct be_ctrl_info *ctrl) { int status; u32 val = 0; void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; struct be_dma_mem *mbox_mem = &ctrl->mbox_mem; struct be_mcc_mailbox *mbox = mbox_mem->va; struct be_mcc_compl *compl = &mbox->compl; struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); status = be_mbox_db_ready_wait(ctrl); if (status) return status; val &= ~MPU_MAILBOX_DB_RDY_MASK; val |= MPU_MAILBOX_DB_HI_MASK; val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; iowrite32(val, db); status = be_mbox_db_ready_wait(ctrl); if (status) return status; val = 0; val &= ~MPU_MAILBOX_DB_RDY_MASK; val &= ~MPU_MAILBOX_DB_HI_MASK; val |= (u32) (mbox_mem->dma >> 4) << 2; iowrite32(val, db); status = be_mbox_db_ready_wait(ctrl); if (status) return status; if (be_mcc_compl_is_new(compl)) { status = be_mcc_compl_process(ctrl, &mbox->compl); be_mcc_compl_use(compl); if (status) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : After be_mcc_compl_process\n"); return status; } } else { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : Invalid Mailbox Completion\n"); return -EBUSY; } return 0; } /* * Insert the mailbox address into the doorbell in two steps * Polls on the mbox doorbell till a command completion (or a timeout) occurs */ static int be_mbox_notify_wait(struct beiscsi_hba *phba) { int status; u32 val = 0; void __iomem *db = phba->ctrl.db + MPU_MAILBOX_DB_OFFSET; struct be_dma_mem *mbox_mem = &phba->ctrl.mbox_mem; struct be_mcc_mailbox *mbox = mbox_mem->va; struct be_mcc_compl *compl = &mbox->compl; struct be_ctrl_info *ctrl = &phba->ctrl; status = be_mbox_db_ready_wait(ctrl); if (status) return status; val |= MPU_MAILBOX_DB_HI_MASK; /* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */ val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; iowrite32(val, db); /* wait for ready to be set */ status = be_mbox_db_ready_wait(ctrl); if (status != 0) return status; val = 0; /* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */ val |= (u32)(mbox_mem->dma >> 4) << 2; iowrite32(val, db); status = be_mbox_db_ready_wait(ctrl); if (status != 0) return status; /* A cq entry has been made now */ if (be_mcc_compl_is_new(compl)) { status = be_mcc_compl_process(ctrl, &mbox->compl); be_mcc_compl_use(compl); if (status) return status; } else { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, "BC_%d : invalid mailbox completion\n"); return -EBUSY; } return 0; } void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len, bool embedded, u8 sge_cnt) { if (embedded) wrb->embedded |= MCC_WRB_EMBEDDED_MASK; else wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) << MCC_WRB_SGE_CNT_SHIFT; wrb->payload_length = payload_len; be_dws_cpu_to_le(wrb, 8); } void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr, u8 subsystem, u8 opcode, int cmd_len) { req_hdr->opcode = opcode; req_hdr->subsystem = subsystem; req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr)); req_hdr->timeout = BEISCSI_FW_MBX_TIMEOUT; } static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages, struct be_dma_mem *mem) { int i, buf_pages; u64 dma = (u64) mem->dma; buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages); for (i = 0; i < buf_pages; i++) { pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF); pages[i].hi = cpu_to_le32(upper_32_bits(dma)); dma += PAGE_SIZE_4K; } } static u32 eq_delay_to_mult(u32 usec_delay) { #define MAX_INTR_RATE 651042 const u32 round = 10; u32 multiplier; if (usec_delay == 0) multiplier = 0; else { u32 interrupt_rate = 1000000 / usec_delay; if (interrupt_rate == 0) multiplier = 1023; else { multiplier = (MAX_INTR_RATE - interrupt_rate) * round; multiplier /= interrupt_rate; multiplier = (multiplier + round / 2) / round; multiplier = min(multiplier, (u32) 1023); } } return multiplier; } struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem) { return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb; } struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba) { struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; struct be_mcc_wrb *wrb; WARN_ON(atomic_read(&mccq->used) >= mccq->len); wrb = queue_head_node(mccq); memset(wrb, 0, sizeof(*wrb)); wrb->tag0 = (mccq->head & 0x000000FF) << 16; queue_head_inc(mccq); atomic_inc(&mccq->used); return wrb; } int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl, struct be_queue_info *eq, int eq_delay) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_cmd_req_eq_create *req = embedded_payload(wrb); struct be_cmd_resp_eq_create *resp = embedded_payload(wrb); struct be_dma_mem *q_mem = &eq->dma_mem; int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_EQ_CREATE, sizeof(*req)); req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); AMAP_SET_BITS(struct amap_eq_context, func, req->context, PCI_FUNC(ctrl->pdev->devfn)); AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1); AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0); AMAP_SET_BITS(struct amap_eq_context, count, req->context, __ilog2_u32(eq->len / 256)); AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context, eq_delay_to_mult(eq_delay)); be_dws_cpu_to_le(req->context, sizeof(req->context)); be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify(ctrl); if (!status) { eq->id = le16_to_cpu(resp->eq_id); eq->created = true; } spin_unlock(&ctrl->mbox_lock); return status; } /** * be_cmd_fw_initialize()- Initialize FW * @ctrl: Pointer to function control structure * * Send FW initialize pattern for the function. * * return * Success: 0 * Failure: Non-Zero value **/ int be_cmd_fw_initialize(struct be_ctrl_info *ctrl) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); int status; u8 *endian_check; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); endian_check = (u8 *) wrb; *endian_check++ = 0xFF; *endian_check++ = 0x12; *endian_check++ = 0x34; *endian_check++ = 0xFF; *endian_check++ = 0xFF; *endian_check++ = 0x56; *endian_check++ = 0x78; *endian_check++ = 0xFF; be_dws_cpu_to_le(wrb, sizeof(*wrb)); status = be_mbox_notify(ctrl); if (status) beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BC_%d : be_cmd_fw_initialize Failed\n"); spin_unlock(&ctrl->mbox_lock); return status; } /** * be_cmd_fw_uninit()- Uinitialize FW * @ctrl: Pointer to function control structure * * Send FW uninitialize pattern for the function * * return * Success: 0 * Failure: Non-Zero value **/ int be_cmd_fw_uninit(struct be_ctrl_info *ctrl) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); int status; u8 *endian_check; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); endian_check = (u8 *) wrb; *endian_check++ = 0xFF; *endian_check++ = 0xAA; *endian_check++ = 0xBB; *endian_check++ = 0xFF; *endian_check++ = 0xFF; *endian_check++ = 0xCC; *endian_check++ = 0xDD; *endian_check = 0xFF; be_dws_cpu_to_le(wrb, sizeof(*wrb)); status = be_mbox_notify(ctrl); if (status) beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BC_%d : be_cmd_fw_uninit Failed\n"); spin_unlock(&ctrl->mbox_lock); return status; } int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl, struct be_queue_info *cq, struct be_queue_info *eq, bool sol_evts, bool no_delay, int coalesce_wm) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_cmd_req_cq_create *req = embedded_payload(wrb); struct be_cmd_resp_cq_create *resp = embedded_payload(wrb); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); struct be_dma_mem *q_mem = &cq->dma_mem; void *ctxt = &req->context; int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_CQ_CREATE, sizeof(*req)); req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); if (is_chip_be2_be3r(phba)) { AMAP_SET_BITS(struct amap_cq_context, coalescwm, ctxt, coalesce_wm); AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay); AMAP_SET_BITS(struct amap_cq_context, count, ctxt, __ilog2_u32(cq->len / 256)); AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1); AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts); AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1); AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id); AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1); AMAP_SET_BITS(struct amap_cq_context, func, ctxt, PCI_FUNC(ctrl->pdev->devfn)); } else { req->hdr.version = MBX_CMD_VER2; req->page_size = 1; AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm, ctxt, coalesce_wm); AMAP_SET_BITS(struct amap_cq_context_v2, nodelay, ctxt, no_delay); AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt, __ilog2_u32(cq->len / 256)); AMAP_SET_BITS(struct amap_cq_context_v2, valid, ctxt, 1); AMAP_SET_BITS(struct amap_cq_context_v2, eventable, ctxt, 1); AMAP_SET_BITS(struct amap_cq_context_v2, eqid, ctxt, eq->id); AMAP_SET_BITS(struct amap_cq_context_v2, armed, ctxt, 1); } be_dws_cpu_to_le(ctxt, sizeof(req->context)); be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify(ctrl); if (!status) { cq->id = le16_to_cpu(resp->cq_id); cq->created = true; } else beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BC_%d : In be_cmd_cq_create, status=ox%08x\n", status); spin_unlock(&ctrl->mbox_lock); return status; } static u32 be_encoded_q_len(int q_len) { u32 len_encoded = fls(q_len); /* log2(len) + 1 */ if (len_encoded == 16) len_encoded = 0; return len_encoded; } int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba, struct be_queue_info *mccq, struct be_queue_info *cq) { struct be_mcc_wrb *wrb; struct be_cmd_req_mcc_create *req; struct be_dma_mem *q_mem = &mccq->dma_mem; struct be_ctrl_info *ctrl; void *ctxt; int status; spin_lock(&phba->ctrl.mbox_lock); ctrl = &phba->ctrl; wrb = wrb_from_mbox(&ctrl->mbox_mem); memset(wrb, 0, sizeof(*wrb)); req = embedded_payload(wrb); ctxt = &req->context; be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_MCC_CREATE, sizeof(*req)); req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); AMAP_SET_BITS(struct amap_mcc_context, fid, ctxt, PCI_FUNC(phba->pcidev->devfn)); AMAP_SET_BITS(struct amap_mcc_context, valid, ctxt, 1); AMAP_SET_BITS(struct amap_mcc_context, ring_size, ctxt, be_encoded_q_len(mccq->len)); AMAP_SET_BITS(struct amap_mcc_context, cq_id, ctxt, cq->id); be_dws_cpu_to_le(ctxt, sizeof(req->context)); be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify_wait(phba); if (!status) { struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb); mccq->id = le16_to_cpu(resp->id); mccq->created = true; } spin_unlock(&phba->ctrl.mbox_lock); return status; } int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q, int queue_type) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_cmd_req_q_destroy *req = embedded_payload(wrb); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); u8 subsys = 0, opcode = 0; int status; beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, "BC_%d : In beiscsi_cmd_q_destroy " "queue_type : %d\n", queue_type); spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); switch (queue_type) { case QTYPE_EQ: subsys = CMD_SUBSYSTEM_COMMON; opcode = OPCODE_COMMON_EQ_DESTROY; break; case QTYPE_CQ: subsys = CMD_SUBSYSTEM_COMMON; opcode = OPCODE_COMMON_CQ_DESTROY; break; case QTYPE_MCCQ: subsys = CMD_SUBSYSTEM_COMMON; opcode = OPCODE_COMMON_MCC_DESTROY; break; case QTYPE_WRBQ: subsys = CMD_SUBSYSTEM_ISCSI; opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY; break; case QTYPE_DPDUQ: subsys = CMD_SUBSYSTEM_ISCSI; opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY; break; case QTYPE_SGL: subsys = CMD_SUBSYSTEM_ISCSI; opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES; break; default: spin_unlock(&ctrl->mbox_lock); BUG(); return -ENXIO; } be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req)); if (queue_type != QTYPE_SGL) req->id = cpu_to_le16(q->id); status = be_mbox_notify(ctrl); spin_unlock(&ctrl->mbox_lock); return status; } int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl, struct be_queue_info *cq, struct be_queue_info *dq, int length, int entry_size) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_defq_create_req *req = embedded_payload(wrb); struct be_dma_mem *q_mem = &dq->dma_mem; struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); void *ctxt = &req->context; int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req)); req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); if (is_chip_be2_be3r(phba)) { AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid, ctxt, 0); AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid_valid, ctxt, 1); AMAP_SET_BITS(struct amap_be_default_pdu_context, pci_func_id, ctxt, PCI_FUNC(ctrl->pdev->devfn)); AMAP_SET_BITS(struct amap_be_default_pdu_context, ring_size, ctxt, be_encoded_q_len(length / sizeof(struct phys_addr))); AMAP_SET_BITS(struct amap_be_default_pdu_context, default_buffer_size, ctxt, entry_size); AMAP_SET_BITS(struct amap_be_default_pdu_context, cq_id_recv, ctxt, cq->id); } else { AMAP_SET_BITS(struct amap_default_pdu_context_ext, rx_pdid, ctxt, 0); AMAP_SET_BITS(struct amap_default_pdu_context_ext, rx_pdid_valid, ctxt, 1); AMAP_SET_BITS(struct amap_default_pdu_context_ext, ring_size, ctxt, be_encoded_q_len(length / sizeof(struct phys_addr))); AMAP_SET_BITS(struct amap_default_pdu_context_ext, default_buffer_size, ctxt, entry_size); AMAP_SET_BITS(struct amap_default_pdu_context_ext, cq_id_recv, ctxt, cq->id); } be_dws_cpu_to_le(ctxt, sizeof(req->context)); be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify(ctrl); if (!status) { struct be_defq_create_resp *resp = embedded_payload(wrb); dq->id = le16_to_cpu(resp->id); dq->created = true; } spin_unlock(&ctrl->mbox_lock); return status; } int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem, struct be_queue_info *wrbq) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_wrbq_create_req *req = embedded_payload(wrb); struct be_wrbq_create_resp *resp = embedded_payload(wrb); int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req)); req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify(ctrl); if (!status) { wrbq->id = le16_to_cpu(resp->cid); wrbq->created = true; } spin_unlock(&ctrl->mbox_lock); return status; } int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_post_template_pages_req *req = embedded_payload(wrb); int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS, sizeof(*req)); req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); status = be_mbox_notify(ctrl); spin_unlock(&ctrl->mbox_lock); return status; } int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_remove_template_pages_req *req = embedded_payload(wrb); int status; spin_lock(&ctrl->mbox_lock); memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS, sizeof(*req)); req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; status = be_mbox_notify(ctrl); spin_unlock(&ctrl->mbox_lock); return status; } int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem, u32 page_offset, u32 num_pages) { struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_post_sgl_pages_req *req = embedded_payload(wrb); struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); int status; unsigned int curr_pages; u32 internal_page_offset = 0; u32 temp_num_pages = num_pages; if (num_pages == 0xff) num_pages = 1; spin_lock(&ctrl->mbox_lock); do { memset(wrb, 0, sizeof(*wrb)); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES, sizeof(*req)); curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req, pages); req->num_pages = min(num_pages, curr_pages); req->page_offset = page_offset; be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem); q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE); internal_page_offset += req->num_pages; page_offset += req->num_pages; num_pages -= req->num_pages; if (temp_num_pages == 0xff) req->num_pages = temp_num_pages; status = be_mbox_notify(ctrl); if (status) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BC_%d : FW CMD to map iscsi frags failed.\n"); goto error; } } while (num_pages > 0); error: spin_unlock(&ctrl->mbox_lock); if (status != 0) beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); return status; } int beiscsi_cmd_reset_function(struct beiscsi_hba *phba) { struct be_ctrl_info *ctrl = &phba->ctrl; struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); struct be_post_sgl_pages_req *req = embedded_payload(wrb); int status; spin_lock(&ctrl->mbox_lock); req = embedded_payload(wrb); be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_FUNCTION_RESET, sizeof(*req)); status = be_mbox_notify_wait(phba); spin_unlock(&ctrl->mbox_lock); return status; } /** * be_cmd_set_vlan()- Configure VLAN paramters on the adapter * @phba: device priv structure instance * @vlan_tag: TAG to be set * * Set the VLAN_TAG for the adapter or Disable VLAN on adapter * * returns * TAG for the MBX Cmd * **/ int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag) { unsigned int tag = 0; struct be_mcc_wrb *wrb; struct be_cmd_set_vlan_req *req; struct be_ctrl_info *ctrl = &phba->ctrl; spin_lock(&ctrl->mbox_lock); tag = alloc_mcc_tag(phba); if (!tag) { spin_unlock(&ctrl->mbox_lock); return tag; } wrb = wrb_from_mccq(phba); req = embedded_payload(wrb); wrb->tag0 |= tag; be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0); be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, OPCODE_COMMON_ISCSI_NTWK_SET_VLAN, sizeof(*req)); req->interface_hndl = phba->interface_handle; req->vlan_priority = vlan_tag; be_mcc_notify(phba); spin_unlock(&ctrl->mbox_lock); return tag; }