/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2007 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include #include #include #include #include #include #include #include #include #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_crtn.h" #include "lpfc_logmsg.h" #include "lpfc_compat.h" #include "lpfc_debugfs.h" /* * Define macro to log: Mailbox command x%x cannot issue Data * This allows multiple uses of lpfc_msgBlk0311 * w/o perturbing log msg utility. */ #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ lpfc_printf_log(phba, \ KERN_INFO, \ LOG_MBOX | LOG_SLI, \ "(%d):0311 Mailbox command x%x cannot " \ "issue Data: x%x x%x x%x\n", \ pmbox->vport ? pmbox->vport->vpi : 0, \ pmbox->mb.mbxCommand, \ phba->pport->port_state, \ psli->sli_flag, \ flag) /* There are only four IOCB completion types. */ typedef enum _lpfc_iocb_type { LPFC_UNKNOWN_IOCB, LPFC_UNSOL_IOCB, LPFC_SOL_IOCB, LPFC_ABORT_IOCB } lpfc_iocb_type; /* SLI-2/SLI-3 provide different sized iocbs. Given a pointer * to the start of the ring, and the slot number of the * desired iocb entry, calc a pointer to that entry. */ static inline IOCB_t * lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { return (IOCB_t *) (((char *) pring->cmdringaddr) + pring->cmdidx * phba->iocb_cmd_size); } static inline IOCB_t * lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { return (IOCB_t *) (((char *) pring->rspringaddr) + pring->rspidx * phba->iocb_rsp_size); } static struct lpfc_iocbq * __lpfc_sli_get_iocbq(struct lpfc_hba *phba) { struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; struct lpfc_iocbq * iocbq = NULL; list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); return iocbq; } struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *phba) { struct lpfc_iocbq * iocbq = NULL; unsigned long iflags; spin_lock_irqsave(&phba->hbalock, iflags); iocbq = __lpfc_sli_get_iocbq(phba); spin_unlock_irqrestore(&phba->hbalock, iflags); return iocbq; } void __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) { size_t start_clean = offsetof(struct lpfc_iocbq, iocb); /* * Clean all volatile data fields, preserve iotag and node struct. */ memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); } void lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) { unsigned long iflags; /* * Clean all volatile data fields, preserve iotag and node struct. */ spin_lock_irqsave(&phba->hbalock, iflags); __lpfc_sli_release_iocbq(phba, iocbq); spin_unlock_irqrestore(&phba->hbalock, iflags); } /* * Translate the iocb command to an iocb command type used to decide the final * disposition of each completed IOCB. */ static lpfc_iocb_type lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) { lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; if (iocb_cmnd > CMD_MAX_IOCB_CMD) return 0; switch (iocb_cmnd) { case CMD_XMIT_SEQUENCE_CR: case CMD_XMIT_SEQUENCE_CX: case CMD_XMIT_BCAST_CN: case CMD_XMIT_BCAST_CX: case CMD_ELS_REQUEST_CR: case CMD_ELS_REQUEST_CX: case CMD_CREATE_XRI_CR: case CMD_CREATE_XRI_CX: case CMD_GET_RPI_CN: case CMD_XMIT_ELS_RSP_CX: case CMD_GET_RPI_CR: case CMD_FCP_IWRITE_CR: case CMD_FCP_IWRITE_CX: case CMD_FCP_IREAD_CR: case CMD_FCP_IREAD_CX: case CMD_FCP_ICMND_CR: case CMD_FCP_ICMND_CX: case CMD_FCP_TSEND_CX: case CMD_FCP_TRSP_CX: case CMD_FCP_TRECEIVE_CX: case CMD_FCP_AUTO_TRSP_CX: case CMD_ADAPTER_MSG: case CMD_ADAPTER_DUMP: case CMD_XMIT_SEQUENCE64_CR: case CMD_XMIT_SEQUENCE64_CX: case CMD_XMIT_BCAST64_CN: case CMD_XMIT_BCAST64_CX: case CMD_ELS_REQUEST64_CR: case CMD_ELS_REQUEST64_CX: case CMD_FCP_IWRITE64_CR: case CMD_FCP_IWRITE64_CX: case CMD_FCP_IREAD64_CR: case CMD_FCP_IREAD64_CX: case CMD_FCP_ICMND64_CR: case CMD_FCP_ICMND64_CX: case CMD_FCP_TSEND64_CX: case CMD_FCP_TRSP64_CX: case CMD_FCP_TRECEIVE64_CX: case CMD_GEN_REQUEST64_CR: case CMD_GEN_REQUEST64_CX: case CMD_XMIT_ELS_RSP64_CX: type = LPFC_SOL_IOCB; break; case CMD_ABORT_XRI_CN: case CMD_ABORT_XRI_CX: case CMD_CLOSE_XRI_CN: case CMD_CLOSE_XRI_CX: case CMD_XRI_ABORTED_CX: case CMD_ABORT_MXRI64_CN: type = LPFC_ABORT_IOCB; break; case CMD_RCV_SEQUENCE_CX: case CMD_RCV_ELS_REQ_CX: case CMD_RCV_SEQUENCE64_CX: case CMD_RCV_ELS_REQ64_CX: case CMD_IOCB_RCV_SEQ64_CX: case CMD_IOCB_RCV_ELS64_CX: case CMD_IOCB_RCV_CONT64_CX: type = LPFC_UNSOL_IOCB; break; default: type = LPFC_UNKNOWN_IOCB; break; } return type; } static int lpfc_sli_ring_map(struct lpfc_hba *phba) { struct lpfc_sli *psli = &phba->sli; LPFC_MBOXQ_t *pmb; MAILBOX_t *pmbox; int i, rc, ret = 0; pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) return -ENOMEM; pmbox = &pmb->mb; phba->link_state = LPFC_INIT_MBX_CMDS; for (i = 0; i < psli->num_rings; i++) { lpfc_config_ring(phba, i, pmb); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0446 Adapter failed to init (%d), " "mbxCmd x%x CFG_RING, mbxStatus x%x, " "ring %d\n", rc, pmbox->mbxCommand, pmbox->mbxStatus, i); phba->link_state = LPFC_HBA_ERROR; ret = -ENXIO; break; } } mempool_free(pmb, phba->mbox_mem_pool); return ret; } static int lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *piocb) { list_add_tail(&piocb->list, &pring->txcmplq); pring->txcmplq_cnt++; if ((unlikely(pring->ringno == LPFC_ELS_RING)) && (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { if (!piocb->vport) BUG(); else mod_timer(&piocb->vport->els_tmofunc, jiffies + HZ * (phba->fc_ratov << 1)); } return 0; } static struct lpfc_iocbq * lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { struct lpfc_iocbq *cmd_iocb; list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); if (cmd_iocb != NULL) pring->txq_cnt--; return cmd_iocb; } static IOCB_t * lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] : &phba->slim2p->mbx.us.s2.port[pring->ringno]; uint32_t max_cmd_idx = pring->numCiocb; if ((pring->next_cmdidx == pring->cmdidx) && (++pring->next_cmdidx >= max_cmd_idx)) pring->next_cmdidx = 0; if (unlikely(pring->local_getidx == pring->next_cmdidx)) { pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); if (unlikely(pring->local_getidx >= max_cmd_idx)) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0315 Ring %d issue: portCmdGet %d " "is bigger then cmd ring %d\n", pring->ringno, pring->local_getidx, max_cmd_idx); phba->link_state = LPFC_HBA_ERROR; /* * All error attention handlers are posted to * worker thread */ phba->work_ha |= HA_ERATT; phba->work_hs = HS_FFER3; /* hbalock should already be held */ if (phba->work_wait) lpfc_worker_wake_up(phba); return NULL; } if (pring->local_getidx == pring->next_cmdidx) return NULL; } return lpfc_cmd_iocb(phba, pring); } uint16_t lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) { struct lpfc_iocbq **new_arr; struct lpfc_iocbq **old_arr; size_t new_len; struct lpfc_sli *psli = &phba->sli; uint16_t iotag; spin_lock_irq(&phba->hbalock); iotag = psli->last_iotag; if(++iotag < psli->iocbq_lookup_len) { psli->last_iotag = iotag; psli->iocbq_lookup[iotag] = iocbq; spin_unlock_irq(&phba->hbalock); iocbq->iotag = iotag; return iotag; } else if (psli->iocbq_lookup_len < (0xffff - LPFC_IOCBQ_LOOKUP_INCREMENT)) { new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; spin_unlock_irq(&phba->hbalock); new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), GFP_KERNEL); if (new_arr) { spin_lock_irq(&phba->hbalock); old_arr = psli->iocbq_lookup; if (new_len <= psli->iocbq_lookup_len) { /* highly unprobable case */ kfree(new_arr); iotag = psli->last_iotag; if(++iotag < psli->iocbq_lookup_len) { psli->last_iotag = iotag; psli->iocbq_lookup[iotag] = iocbq; spin_unlock_irq(&phba->hbalock); iocbq->iotag = iotag; return iotag; } spin_unlock_irq(&phba->hbalock); return 0; } if (psli->iocbq_lookup) memcpy(new_arr, old_arr, ((psli->last_iotag + 1) * sizeof (struct lpfc_iocbq *))); psli->iocbq_lookup = new_arr; psli->iocbq_lookup_len = new_len; psli->last_iotag = iotag; psli->iocbq_lookup[iotag] = iocbq; spin_unlock_irq(&phba->hbalock); iocbq->iotag = iotag; kfree(old_arr); return iotag; } } else spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_ERR,LOG_SLI, "0318 Failed to allocate IOTAG.last IOTAG is %d\n", psli->last_iotag); return 0; } static void lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, IOCB_t *iocb, struct lpfc_iocbq *nextiocb) { /* * Set up an iotag */ nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; if (pring->ringno == LPFC_ELS_RING) { lpfc_debugfs_slow_ring_trc(phba, "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", *(((uint32_t *) &nextiocb->iocb) + 4), *(((uint32_t *) &nextiocb->iocb) + 6), *(((uint32_t *) &nextiocb->iocb) + 7)); } /* * Issue iocb command to adapter */ lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); wmb(); pring->stats.iocb_cmd++; /* * If there is no completion routine to call, we can release the * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, * that have no rsp ring completion, iocb_cmpl MUST be NULL. */ if (nextiocb->iocb_cmpl) lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); else __lpfc_sli_release_iocbq(phba, nextiocb); /* * Let the HBA know what IOCB slot will be the next one the * driver will put a command into. */ pring->cmdidx = pring->next_cmdidx; writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); } static void lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { int ringno = pring->ringno; pring->flag |= LPFC_CALL_RING_AVAILABLE; wmb(); /* * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. * The HBA will tell us when an IOCB entry is available. */ writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); readl(phba->CAregaddr); /* flush */ pring->stats.iocb_cmd_full++; } static void lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { int ringno = pring->ringno; /* * Tell the HBA that there is work to do in this ring. */ wmb(); writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); readl(phba->CAregaddr); /* flush */ } static void lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { IOCB_t *iocb; struct lpfc_iocbq *nextiocb; /* * Check to see if: * (a) there is anything on the txq to send * (b) link is up * (c) link attention events can be processed (fcp ring only) * (d) IOCB processing is not blocked by the outstanding mbox command. */ if (pring->txq_cnt && lpfc_is_link_up(phba) && (pring->ringno != phba->sli.fcp_ring || phba->sli.sli_flag & LPFC_PROCESS_LA) && !(pring->flag & LPFC_STOP_IOCB_MBX)) { while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && (nextiocb = lpfc_sli_ringtx_get(phba, pring))) lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); if (iocb) lpfc_sli_update_ring(phba, pring); else lpfc_sli_update_full_ring(phba, pring); } return; } /* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ static void lpfc_sli_turn_on_ring(struct lpfc_hba *phba, int ringno) { struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[ringno] : &phba->slim2p->mbx.us.s2.port[ringno]; unsigned long iflags; /* If the ring is active, flag it */ spin_lock_irqsave(&phba->hbalock, iflags); if (phba->sli.ring[ringno].cmdringaddr) { if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; /* * Force update of the local copy of cmdGetInx */ phba->sli.ring[ringno].local_getidx = le32_to_cpu(pgp->cmdGetInx); lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); } } spin_unlock_irqrestore(&phba->hbalock, iflags); } struct lpfc_hbq_entry * lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) { struct hbq_s *hbqp = &phba->hbqs[hbqno]; if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && ++hbqp->next_hbqPutIdx >= hbqp->entry_count) hbqp->next_hbqPutIdx = 0; if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { uint32_t raw_index = phba->hbq_get[hbqno]; uint32_t getidx = le32_to_cpu(raw_index); hbqp->local_hbqGetIdx = getidx; if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, "1802 HBQ %d: local_hbqGetIdx " "%u is > than hbqp->entry_count %u\n", hbqno, hbqp->local_hbqGetIdx, hbqp->entry_count); phba->link_state = LPFC_HBA_ERROR; return NULL; } if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) return NULL; } return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + hbqp->hbqPutIdx; } void lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) { struct lpfc_dmabuf *dmabuf, *next_dmabuf; struct hbq_dmabuf *hbq_buf; int i, hbq_count; hbq_count = lpfc_sli_hbq_count(); /* Return all memory used by all HBQs */ for (i = 0; i < hbq_count; ++i) { list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->hbqs[i].hbq_buffer_list, list) { hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); list_del(&hbq_buf->dbuf.list); (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); } } } static struct lpfc_hbq_entry * lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, struct hbq_dmabuf *hbq_buf) { struct lpfc_hbq_entry *hbqe; dma_addr_t physaddr = hbq_buf->dbuf.phys; /* Get next HBQ entry slot to use */ hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); if (hbqe) { struct hbq_s *hbqp = &phba->hbqs[hbqno]; hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); hbqe->bde.tus.f.bdeSize = hbq_buf->size; hbqe->bde.tus.f.bdeFlags = 0; hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); /* Sync SLIM */ hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); /* flush */ readl(phba->hbq_put + hbqno); list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); } return hbqe; } static struct lpfc_hbq_init lpfc_els_hbq = { .rn = 1, .entry_count = 200, .mask_count = 0, .profile = 0, .ring_mask = (1 << LPFC_ELS_RING), .buffer_count = 0, .init_count = 20, .add_count = 5, }; static struct lpfc_hbq_init lpfc_extra_hbq = { .rn = 1, .entry_count = 200, .mask_count = 0, .profile = 0, .ring_mask = (1 << LPFC_EXTRA_RING), .buffer_count = 0, .init_count = 0, .add_count = 5, }; struct lpfc_hbq_init *lpfc_hbq_defs[] = { &lpfc_els_hbq, &lpfc_extra_hbq, }; static int lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) { uint32_t i, start, end; struct hbq_dmabuf *hbq_buffer; if (!phba->hbqs[hbqno].hbq_alloc_buffer) { return 0; } start = lpfc_hbq_defs[hbqno]->buffer_count; end = count + lpfc_hbq_defs[hbqno]->buffer_count; if (end > lpfc_hbq_defs[hbqno]->entry_count) { end = lpfc_hbq_defs[hbqno]->entry_count; } /* Populate HBQ entries */ for (i = start; i < end; i++) { hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); if (!hbq_buffer) return 1; hbq_buffer->tag = (i | (hbqno << 16)); if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) lpfc_hbq_defs[hbqno]->buffer_count++; else (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); } return 0; } int lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) { return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, lpfc_hbq_defs[qno]->add_count)); } int lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) { return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, lpfc_hbq_defs[qno]->init_count)); } struct hbq_dmabuf * lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) { struct lpfc_dmabuf *d_buf; struct hbq_dmabuf *hbq_buf; uint32_t hbqno; hbqno = tag >> 16; if (hbqno >= LPFC_MAX_HBQS) return NULL; list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); if (hbq_buf->tag == tag) { return hbq_buf; } } lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, "1803 Bad hbq tag. Data: x%x x%x\n", tag, lpfc_hbq_defs[tag >> 16]->buffer_count); return NULL; } void lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) { uint32_t hbqno; if (hbq_buffer) { hbqno = hbq_buffer->tag >> 16; if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); } } } static int lpfc_sli_chk_mbx_command(uint8_t mbxCommand) { uint8_t ret; switch (mbxCommand) { case MBX_LOAD_SM: case MBX_READ_NV: case MBX_WRITE_NV: case MBX_RUN_BIU_DIAG: case MBX_INIT_LINK: case MBX_DOWN_LINK: case MBX_CONFIG_LINK: case MBX_CONFIG_RING: case MBX_RESET_RING: case MBX_READ_CONFIG: case MBX_READ_RCONFIG: case MBX_READ_SPARM: case MBX_READ_STATUS: case MBX_READ_RPI: case MBX_READ_XRI: case MBX_READ_REV: case MBX_READ_LNK_STAT: case MBX_REG_LOGIN: case MBX_UNREG_LOGIN: case MBX_READ_LA: case MBX_CLEAR_LA: case MBX_DUMP_MEMORY: case MBX_DUMP_CONTEXT: case MBX_RUN_DIAGS: case MBX_RESTART: case MBX_UPDATE_CFG: case MBX_DOWN_LOAD: case MBX_DEL_LD_ENTRY: case MBX_RUN_PROGRAM: case MBX_SET_MASK: case MBX_SET_SLIM: case MBX_UNREG_D_ID: case MBX_KILL_BOARD: case MBX_CONFIG_FARP: case MBX_BEACON: case MBX_LOAD_AREA: case MBX_RUN_BIU_DIAG64: case MBX_CONFIG_PORT: case MBX_READ_SPARM64: case MBX_READ_RPI64: case MBX_REG_LOGIN64: case MBX_READ_LA64: case MBX_FLASH_WR_ULA: case MBX_SET_DEBUG: case MBX_LOAD_EXP_ROM: case MBX_REG_VPI: case MBX_UNREG_VPI: case MBX_HEARTBEAT: ret = mbxCommand; break; default: ret = MBX_SHUTDOWN; break; } return ret; } static void lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) { wait_queue_head_t *pdone_q; unsigned long drvr_flag; /* * If pdone_q is empty, the driver thread gave up waiting and * continued running. */ pmboxq->mbox_flag |= LPFC_MBX_WAKE; spin_lock_irqsave(&phba->hbalock, drvr_flag); pdone_q = (wait_queue_head_t *) pmboxq->context1; if (pdone_q) wake_up_interruptible(pdone_q); spin_unlock_irqrestore(&phba->hbalock, drvr_flag); return; } void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_dmabuf *mp; uint16_t rpi; int rc; mp = (struct lpfc_dmabuf *) (pmb->context1); if (mp) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } /* * If a REG_LOGIN succeeded after node is destroyed or node * is in re-discovery driver need to cleanup the RPI. */ if (!(phba->pport->load_flag & FC_UNLOADING) && pmb->mb.mbxCommand == MBX_REG_LOGIN64 && !pmb->mb.mbxStatus) { rpi = pmb->mb.un.varWords[0]; lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc != MBX_NOT_FINISHED) return; } mempool_free(pmb, phba->mbox_mem_pool); return; } int lpfc_sli_handle_mb_event(struct lpfc_hba *phba) { MAILBOX_t *pmbox; LPFC_MBOXQ_t *pmb; int rc; LIST_HEAD(cmplq); phba->sli.slistat.mbox_event++; /* Get all completed mailboxe buffers into the cmplq */ spin_lock_irq(&phba->hbalock); list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); spin_unlock_irq(&phba->hbalock); /* Get a Mailbox buffer to setup mailbox commands for callback */ do { list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); if (pmb == NULL) break; pmbox = &pmb->mb; if (pmbox->mbxCommand != MBX_HEARTBEAT) { if (pmb->vport) { lpfc_debugfs_disc_trc(pmb->vport, LPFC_DISC_TRC_MBOX_VPORT, "MBOX cmpl vport: cmd:x%x mb:x%x x%x", (uint32_t)pmbox->mbxCommand, pmbox->un.varWords[0], pmbox->un.varWords[1]); } else { lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_MBOX, "MBOX cmpl: cmd:x%x mb:x%x x%x", (uint32_t)pmbox->mbxCommand, pmbox->un.varWords[0], pmbox->un.varWords[1]); } } /* * It is a fatal error if unknown mbox command completion. */ if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == MBX_SHUTDOWN) { /* Unknow mailbox command compl */ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "(%d):0323 Unknown Mailbox command " "%x Cmpl\n", pmb->vport ? pmb->vport->vpi : 0, pmbox->mbxCommand); phba->link_state = LPFC_HBA_ERROR; phba->work_hs = HS_FFER3; lpfc_handle_eratt(phba); continue; } if (pmbox->mbxStatus) { phba->sli.slistat.mbox_stat_err++; if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { /* Mbox cmd cmpl error - RETRYing */ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, "(%d):0305 Mbox cmd cmpl " "error - RETRYing Data: x%x " "x%x x%x x%x\n", pmb->vport ? pmb->vport->vpi :0, pmbox->mbxCommand, pmbox->mbxStatus, pmbox->un.varWords[0], pmb->vport->port_state); pmbox->mbxStatus = 0; pmbox->mbxOwner = OWN_HOST; spin_lock_irq(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irq(&phba->hbalock); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc == MBX_SUCCESS) continue; } } /* Mailbox cmd Cmpl */ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, "(%d):0307 Mailbox cmd x%x Cmpl x%p " "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", pmb->vport ? pmb->vport->vpi : 0, pmbox->mbxCommand, pmb->mbox_cmpl, *((uint32_t *) pmbox), pmbox->un.varWords[0], pmbox->un.varWords[1], pmbox->un.varWords[2], pmbox->un.varWords[3], pmbox->un.varWords[4], pmbox->un.varWords[5], pmbox->un.varWords[6], pmbox->un.varWords[7]); if (pmb->mbox_cmpl) pmb->mbox_cmpl(phba,pmb); } while (1); return 0; } static struct lpfc_dmabuf * lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) { struct hbq_dmabuf *hbq_entry, *new_hbq_entry; uint32_t hbqno; void *virt; /* virtual address ptr */ dma_addr_t phys; /* mapped address */ hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); if (hbq_entry == NULL) return NULL; list_del(&hbq_entry->dbuf.list); hbqno = tag >> 16; new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); if (new_hbq_entry == NULL) return &hbq_entry->dbuf; new_hbq_entry->tag = -1; phys = new_hbq_entry->dbuf.phys; virt = new_hbq_entry->dbuf.virt; new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys; new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt; hbq_entry->dbuf.phys = phys; hbq_entry->dbuf.virt = virt; lpfc_sli_free_hbq(phba, hbq_entry); return &new_hbq_entry->dbuf; } static int lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *saveq) { IOCB_t * irsp; WORD5 * w5p; uint32_t Rctl, Type; uint32_t match, i; match = 0; irsp = &(saveq->iocb); if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX) || (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX)) { Rctl = FC_ELS_REQ; Type = FC_ELS_DATA; } else { w5p = (WORD5 *) & (saveq->iocb.un. ulpWord[5]); Rctl = w5p->hcsw.Rctl; Type = w5p->hcsw.Type; /* Firmware Workaround */ if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { Rctl = FC_ELS_REQ; Type = FC_ELS_DATA; w5p->hcsw.Rctl = Rctl; w5p->hcsw.Type = Type; } } if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { if (irsp->ulpBdeCount != 0) saveq->context2 = lpfc_sli_replace_hbqbuff(phba, irsp->un.ulpWord[3]); if (irsp->ulpBdeCount == 2) saveq->context3 = lpfc_sli_replace_hbqbuff(phba, irsp->unsli3.sli3Words[7]); } /* unSolicited Responses */ if (pring->prt[0].profile) { if (pring->prt[0].lpfc_sli_rcv_unsol_event) (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); match = 1; } else { /* We must search, based on rctl / type for the right routine */ for (i = 0; i < pring->num_mask; i++) { if ((pring->prt[i].rctl == Rctl) && (pring->prt[i]. type == Type)) { if (pring->prt[i].lpfc_sli_rcv_unsol_event) (pring->prt[i].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); match = 1; break; } } } if (match == 0) { /* Unexpected Rctl / Type received */ /* Ring handler: unexpected Rctl Type received */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, "0313 Ring %d handler: unexpected Rctl x%x " "Type x%x received\n", pring->ringno, Rctl, Type); } return 1; } static struct lpfc_iocbq * lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *prspiocb) { struct lpfc_iocbq *cmd_iocb = NULL; uint16_t iotag; iotag = prspiocb->iocb.ulpIoTag; if (iotag != 0 && iotag <= phba->sli.last_iotag) { cmd_iocb = phba->sli.iocbq_lookup[iotag]; list_del_init(&cmd_iocb->list); pring->txcmplq_cnt--; return cmd_iocb; } lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0317 iotag x%x is out off " "range: max iotag x%x wd0 x%x\n", iotag, phba->sli.last_iotag, *(((uint32_t *) &prspiocb->iocb) + 7)); return NULL; } static int lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *saveq) { struct lpfc_iocbq *cmdiocbp; int rc = 1; unsigned long iflag; /* Based on the iotag field, get the cmd IOCB from the txcmplq */ spin_lock_irqsave(&phba->hbalock, iflag); cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); spin_unlock_irqrestore(&phba->hbalock, iflag); if (cmdiocbp) { if (cmdiocbp->iocb_cmpl) { /* * Post all ELS completions to the worker thread. * All other are passed to the completion callback. */ if (pring->ringno == LPFC_ELS_RING) { if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { cmdiocbp->iocb_flag &= ~LPFC_DRIVER_ABORTED; saveq->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; saveq->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; } } (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); } else lpfc_sli_release_iocbq(phba, cmdiocbp); } else { /* * Unknown initiating command based on the response iotag. * This could be the case on the ELS ring because of * lpfc_els_abort(). */ if (pring->ringno != LPFC_ELS_RING) { /* * Ring handler: unexpected completion IoTag * */ lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI, "0322 Ring %d handler: " "unexpected completion IoTag x%x " "Data: x%x x%x x%x x%x\n", pring->ringno, saveq->iocb.ulpIoTag, saveq->iocb.ulpStatus, saveq->iocb.un.ulpWord[4], saveq->iocb.ulpCommand, saveq->iocb.ulpContext); } } return rc; } static void lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] : &phba->slim2p->mbx.us.s2.port[pring->ringno]; /* * Ring handler: portRspPut is bigger then * rsp ring */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0312 Ring %d handler: portRspPut %d " "is bigger then rsp ring %d\n", pring->ringno, le32_to_cpu(pgp->rspPutInx), pring->numRiocb); phba->link_state = LPFC_HBA_ERROR; /* * All error attention handlers are posted to * worker thread */ phba->work_ha |= HA_ERATT; phba->work_hs = HS_FFER3; /* hbalock should already be held */ if (phba->work_wait) lpfc_worker_wake_up(phba); return; } void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) { struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; IOCB_t *irsp = NULL; IOCB_t *entry = NULL; struct lpfc_iocbq *cmdiocbq = NULL; struct lpfc_iocbq rspiocbq; struct lpfc_pgp *pgp; uint32_t status; uint32_t portRspPut, portRspMax; int type; uint32_t rsp_cmpl = 0; uint32_t ha_copy; unsigned long iflags; pring->stats.iocb_event++; pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] : &phba->slim2p->mbx.us.s2.port[pring->ringno]; /* * The next available response entry should never exceed the maximum * entries. If it does, treat it as an adapter hardware error. */ portRspMax = pring->numRiocb; portRspPut = le32_to_cpu(pgp->rspPutInx); if (unlikely(portRspPut >= portRspMax)) { lpfc_sli_rsp_pointers_error(phba, pring); return; } rmb(); while (pring->rspidx != portRspPut) { entry = lpfc_resp_iocb(phba, pring); if (++pring->rspidx >= portRspMax) pring->rspidx = 0; lpfc_sli_pcimem_bcopy((uint32_t *) entry, (uint32_t *) &rspiocbq.iocb, phba->iocb_rsp_size); irsp = &rspiocbq.iocb; type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); pring->stats.iocb_rsp++; rsp_cmpl++; if (unlikely(irsp->ulpStatus)) { /* Rsp ring error: IOCB */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, "0326 Rsp Ring %d error: IOCB Data: " "x%x x%x x%x x%x x%x x%x x%x x%x\n", pring->ringno, irsp->un.ulpWord[0], irsp->un.ulpWord[1], irsp->un.ulpWord[2], irsp->un.ulpWord[3], irsp->un.ulpWord[4], irsp->un.ulpWord[5], *(((uint32_t *) irsp) + 6), *(((uint32_t *) irsp) + 7)); } switch (type) { case LPFC_ABORT_IOCB: case LPFC_SOL_IOCB: /* * Idle exchange closed via ABTS from port. No iocb * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0314 IOCB cmd 0x%x " "processed. Skipping " "completion", irsp->ulpCommand); break; } spin_lock_irqsave(&phba->hbalock, iflags); cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, &rspiocbq); spin_unlock_irqrestore(&phba->hbalock, iflags); if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &rspiocbq); } break; default: if (irsp->ulpCommand == CMD_ADAPTER_MSG) { char adaptermsg[LPFC_MAX_ADPTMSG]; memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); memcpy(&adaptermsg[0], (uint8_t *) irsp, MAX_MSG_DATA); dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s\n", phba->brd_no, adaptermsg); } else { /* Unknown IOCB command */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0321 Unknown IOCB command " "Data: x%x, x%x x%x x%x x%x\n", type, irsp->ulpCommand, irsp->ulpStatus, irsp->ulpIoTag, irsp->ulpContext); } break; } /* * The response IOCB has been processed. Update the ring * pointer in SLIM. If the port response put pointer has not * been updated, sync the pgp->rspPutInx and fetch the new port * response put pointer. */ writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); if (pring->rspidx == portRspPut) portRspPut = le32_to_cpu(pgp->rspPutInx); } ha_copy = readl(phba->HAregaddr); ha_copy >>= (LPFC_FCP_RING * 4); if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { spin_lock_irqsave(&phba->hbalock, iflags); pring->stats.iocb_rsp_full++; status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); writel(status, phba->CAregaddr); readl(phba->CAregaddr); spin_unlock_irqrestore(&phba->hbalock, iflags); } if ((ha_copy & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { spin_lock_irqsave(&phba->hbalock, iflags); pring->flag &= ~LPFC_CALL_RING_AVAILABLE; pring->stats.iocb_cmd_empty++; /* Force update of the local copy of cmdGetInx */ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); lpfc_sli_resume_iocb(phba, pring); if ((pring->lpfc_sli_cmd_available)) (pring->lpfc_sli_cmd_available) (phba, pring); spin_unlock_irqrestore(&phba->hbalock, iflags); } return; } /* * This routine presumes LPFC_FCP_RING handling and doesn't bother * to check it explicitly. */ static int lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, uint32_t mask) { struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] : &phba->slim2p->mbx.us.s2.port[pring->ringno]; IOCB_t *irsp = NULL; IOCB_t *entry = NULL; struct lpfc_iocbq *cmdiocbq = NULL; struct lpfc_iocbq rspiocbq; uint32_t status; uint32_t portRspPut, portRspMax; int rc = 1; lpfc_iocb_type type; unsigned long iflag; uint32_t rsp_cmpl = 0; spin_lock_irqsave(&phba->hbalock, iflag); pring->stats.iocb_event++; /* * The next available response entry should never exceed the maximum * entries. If it does, treat it as an adapter hardware error. */ portRspMax = pring->numRiocb; portRspPut = le32_to_cpu(pgp->rspPutInx); if (unlikely(portRspPut >= portRspMax)) { lpfc_sli_rsp_pointers_error(phba, pring); spin_unlock_irqrestore(&phba->hbalock, iflag); return 1; } rmb(); while (pring->rspidx != portRspPut) { /* * Fetch an entry off the ring and copy it into a local data * structure. The copy involves a byte-swap since the * network byte order and pci byte orders are different. */ entry = lpfc_resp_iocb(phba, pring); phba->last_completion_time = jiffies; if (++pring->rspidx >= portRspMax) pring->rspidx = 0; lpfc_sli_pcimem_bcopy((uint32_t *) entry, (uint32_t *) &rspiocbq.iocb, phba->iocb_rsp_size); INIT_LIST_HEAD(&(rspiocbq.list)); irsp = &rspiocbq.iocb; type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); pring->stats.iocb_rsp++; rsp_cmpl++; if (unlikely(irsp->ulpStatus)) { /* * If resource errors reported from HBA, reduce * queuedepths of the SCSI device. */ if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { spin_unlock_irqrestore(&phba->hbalock, iflag); lpfc_adjust_queue_depth(phba); spin_lock_irqsave(&phba->hbalock, iflag); } /* Rsp ring error: IOCB */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, "0336 Rsp Ring %d error: IOCB Data: " "x%x x%x x%x x%x x%x x%x x%x x%x\n", pring->ringno, irsp->un.ulpWord[0], irsp->un.ulpWord[1], irsp->un.ulpWord[2], irsp->un.ulpWord[3], irsp->un.ulpWord[4], irsp->un.ulpWord[5], *(((uint32_t *) irsp) + 6), *(((uint32_t *) irsp) + 7)); } switch (type) { case LPFC_ABORT_IOCB: case LPFC_SOL_IOCB: /* * Idle exchange closed via ABTS from port. No iocb * resources need to be recovered. */ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0333 IOCB cmd 0x%x" " processed. Skipping" " completion\n", irsp->ulpCommand); break; } cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, &rspiocbq); if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &rspiocbq); } else { spin_unlock_irqrestore(&phba->hbalock, iflag); (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &rspiocbq); spin_lock_irqsave(&phba->hbalock, iflag); } } break; case LPFC_UNSOL_IOCB: spin_unlock_irqrestore(&phba->hbalock, iflag); lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); spin_lock_irqsave(&phba->hbalock, iflag); break; default: if (irsp->ulpCommand == CMD_ADAPTER_MSG) { char adaptermsg[LPFC_MAX_ADPTMSG]; memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); memcpy(&adaptermsg[0], (uint8_t *) irsp, MAX_MSG_DATA); dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s\n", phba->brd_no, adaptermsg); } else { /* Unknown IOCB command */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0334 Unknown IOCB command " "Data: x%x, x%x x%x x%x x%x\n", type, irsp->ulpCommand, irsp->ulpStatus, irsp->ulpIoTag, irsp->ulpContext); } break; } /* * The response IOCB has been processed. Update the ring * pointer in SLIM. If the port response put pointer has not * been updated, sync the pgp->rspPutInx and fetch the new port * response put pointer. */ writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); if (pring->rspidx == portRspPut) portRspPut = le32_to_cpu(pgp->rspPutInx); } if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { pring->stats.iocb_rsp_full++; status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); writel(status, phba->CAregaddr); readl(phba->CAregaddr); } if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { pring->flag &= ~LPFC_CALL_RING_AVAILABLE; pring->stats.iocb_cmd_empty++; /* Force update of the local copy of cmdGetInx */ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); lpfc_sli_resume_iocb(phba, pring); if ((pring->lpfc_sli_cmd_available)) (pring->lpfc_sli_cmd_available) (phba, pring); } spin_unlock_irqrestore(&phba->hbalock, iflag); return rc; } int lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, uint32_t mask) { struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] : &phba->slim2p->mbx.us.s2.port[pring->ringno]; IOCB_t *entry; IOCB_t *irsp = NULL; struct lpfc_iocbq *rspiocbp = NULL; struct lpfc_iocbq *next_iocb; struct lpfc_iocbq *cmdiocbp; struct lpfc_iocbq *saveq; uint8_t iocb_cmd_type; lpfc_iocb_type type; uint32_t status, free_saveq; uint32_t portRspPut, portRspMax; int rc = 1; unsigned long iflag; spin_lock_irqsave(&phba->hbalock, iflag); pring->stats.iocb_event++; /* * The next available response entry should never exceed the maximum * entries. If it does, treat it as an adapter hardware error. */ portRspMax = pring->numRiocb; portRspPut = le32_to_cpu(pgp->rspPutInx); if (portRspPut >= portRspMax) { /* * Ring handler: portRspPut is bigger then * rsp ring */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0303 Ring %d handler: portRspPut %d " "is bigger then rsp ring %d\n", pring->ringno, portRspPut, portRspMax); phba->link_state = LPFC_HBA_ERROR; spin_unlock_irqrestore(&phba->hbalock, iflag); phba->work_hs = HS_FFER3; lpfc_handle_eratt(phba); return 1; } rmb(); while (pring->rspidx != portRspPut) { /* * Build a completion list and call the appropriate handler. * The process is to get the next available response iocb, get * a free iocb from the list, copy the response data into the * free iocb, insert to the continuation list, and update the * next response index to slim. This process makes response * iocb's in the ring available to DMA as fast as possible but * pays a penalty for a copy operation. Since the iocb is * only 32 bytes, this penalty is considered small relative to * the PCI reads for register values and a slim write. When * the ulpLe field is set, the entire Command has been * received. */ entry = lpfc_resp_iocb(phba, pring); phba->last_completion_time = jiffies; rspiocbp = __lpfc_sli_get_iocbq(phba); if (rspiocbp == NULL) { printk(KERN_ERR "%s: out of buffers! Failing " "completion.\n", __FUNCTION__); break; } lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, phba->iocb_rsp_size); irsp = &rspiocbp->iocb; if (++pring->rspidx >= portRspMax) pring->rspidx = 0; if (pring->ringno == LPFC_ELS_RING) { lpfc_debugfs_slow_ring_trc(phba, "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", *(((uint32_t *) irsp) + 4), *(((uint32_t *) irsp) + 6), *(((uint32_t *) irsp) + 7)); } writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); if (list_empty(&(pring->iocb_continueq))) { list_add(&rspiocbp->list, &(pring->iocb_continueq)); } else { list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); } pring->iocb_continueq_cnt++; if (irsp->ulpLe) { /* * By default, the driver expects to free all resources * associated with this iocb completion. */ free_saveq = 1; saveq = list_get_first(&pring->iocb_continueq, struct lpfc_iocbq, list); irsp = &(saveq->iocb); list_del_init(&pring->iocb_continueq); pring->iocb_continueq_cnt = 0; pring->stats.iocb_rsp++; /* * If resource errors reported from HBA, reduce * queuedepths of the SCSI device. */ if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { spin_unlock_irqrestore(&phba->hbalock, iflag); lpfc_adjust_queue_depth(phba); spin_lock_irqsave(&phba->hbalock, iflag); } if (irsp->ulpStatus) { /* Rsp ring error: IOCB */ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, "0328 Rsp Ring %d error: " "IOCB Data: " "x%x x%x x%x x%x " "x%x x%x x%x x%x " "x%x x%x x%x x%x " "x%x x%x x%x x%x\n", pring->ringno, irsp->un.ulpWord[0], irsp->un.ulpWord[1], irsp->un.ulpWord[2], irsp->un.ulpWord[3], irsp->un.ulpWord[4], irsp->un.ulpWord[5], *(((uint32_t *) irsp) + 6), *(((uint32_t *) irsp) + 7), *(((uint32_t *) irsp) + 8), *(((uint32_t *) irsp) + 9), *(((uint32_t *) irsp) + 10), *(((uint32_t *) irsp) + 11), *(((uint32_t *) irsp) + 12), *(((uint32_t *) irsp) + 13), *(((uint32_t *) irsp) + 14), *(((uint32_t *) irsp) + 15)); } /* * Fetch the IOCB command type and call the correct * completion routine. Solicited and Unsolicited * IOCBs on the ELS ring get freed back to the * lpfc_iocb_list by the discovery kernel thread. */ iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); if (type == LPFC_SOL_IOCB) { spin_unlock_irqrestore(&phba->hbalock, iflag); rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); spin_lock_irqsave(&phba->hbalock, iflag); } else if (type == LPFC_UNSOL_IOCB) { spin_unlock_irqrestore(&phba->hbalock, iflag); rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); spin_lock_irqsave(&phba->hbalock, iflag); } else if (type == LPFC_ABORT_IOCB) { if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && ((cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq)))) { /* Call the specified completion routine */ if (cmdiocbp->iocb_cmpl) { spin_unlock_irqrestore( &phba->hbalock, iflag); (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); spin_lock_irqsave( &phba->hbalock, iflag); } else __lpfc_sli_release_iocbq(phba, cmdiocbp); } } else if (type == LPFC_UNKNOWN_IOCB) { if (irsp->ulpCommand == CMD_ADAPTER_MSG) { char adaptermsg[LPFC_MAX_ADPTMSG]; memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); memcpy(&adaptermsg[0], (uint8_t *) irsp, MAX_MSG_DATA); dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s\n", phba->brd_no, adaptermsg); } else { /* Unknown IOCB command */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0335 Unknown IOCB " "command Data: x%x " "x%x x%x x%x\n", irsp->ulpCommand, irsp->ulpStatus, irsp->ulpIoTag, irsp->ulpContext); } } if (free_saveq) { list_for_each_entry_safe(rspiocbp, next_iocb, &saveq->list, list) { list_del(&rspiocbp->list); __lpfc_sli_release_iocbq(phba, rspiocbp); } __lpfc_sli_release_iocbq(phba, saveq); } rspiocbp = NULL; } /* * If the port response put pointer has not been updated, sync * the pgp->rspPutInx in the MAILBOX_tand fetch the new port * response put pointer. */ if (pring->rspidx == portRspPut) { portRspPut = le32_to_cpu(pgp->rspPutInx); } } /* while (pring->rspidx != portRspPut) */ if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { /* At least one response entry has been freed */ pring->stats.iocb_rsp_full++; /* SET RxRE_RSP in Chip Att register */ status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); writel(status, phba->CAregaddr); readl(phba->CAregaddr); /* flush */ } if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { pring->flag &= ~LPFC_CALL_RING_AVAILABLE; pring->stats.iocb_cmd_empty++; /* Force update of the local copy of cmdGetInx */ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); lpfc_sli_resume_iocb(phba, pring); if ((pring->lpfc_sli_cmd_available)) (pring->lpfc_sli_cmd_available) (phba, pring); } spin_unlock_irqrestore(&phba->hbalock, iflag); return rc; } void lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) { LIST_HEAD(completions); struct lpfc_iocbq *iocb, *next_iocb; IOCB_t *cmd = NULL; if (pring->ringno == LPFC_ELS_RING) { lpfc_fabric_abort_hba(phba); } /* Error everything on txq and txcmplq * First do the txq. */ spin_lock_irq(&phba->hbalock); list_splice_init(&pring->txq, &completions); pring->txq_cnt = 0; /* Next issue ABTS for everything on the txcmplq */ list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) lpfc_sli_issue_abort_iotag(phba, pring, iocb); spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { iocb = list_get_first(&completions, struct lpfc_iocbq, list); cmd = &iocb->iocb; list_del_init(&iocb->list); if (!iocb->iocb_cmpl) lpfc_sli_release_iocbq(phba, iocb); else { cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (iocb->iocb_cmpl) (phba, iocb, iocb); } } } int lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) { uint32_t status; int i = 0; int retval = 0; /* Read the HBA Host Status Register */ status = readl(phba->HSregaddr); /* * Check status register every 100ms for 5 retries, then every * 500ms for 5, then every 2.5 sec for 5, then reset board and * every 2.5 sec for 4. * Break our of the loop if errors occurred during init. */ while (((status & mask) != mask) && !(status & HS_FFERM) && i++ < 20) { if (i <= 5) msleep(10); else if (i <= 10) msleep(500); else msleep(2500); if (i == 15) { /* Do post */ phba->pport->port_state = LPFC_VPORT_UNKNOWN; lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ status = readl(phba->HSregaddr); } /* Check to see if any errors occurred during init */ if ((status & HS_FFERM) || (i >= 20)) { phba->link_state = LPFC_HBA_ERROR; retval = 1; } return retval; } #define BARRIER_TEST_PATTERN (0xdeadbeef) void lpfc_reset_barrier(struct lpfc_hba *phba) { uint32_t __iomem *resp_buf; uint32_t __iomem *mbox_buf; volatile uint32_t mbox; uint32_t hc_copy; int i; uint8_t hdrtype; pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); if (hdrtype != 0x80 || (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) return; /* * Tell the other part of the chip to suspend temporarily all * its DMA activity. */ resp_buf = phba->MBslimaddr; /* Disable the error attention */ hc_copy = readl(phba->HCregaddr); writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); readl(phba->HCregaddr); /* flush */ phba->link_flag |= LS_IGNORE_ERATT; if (readl(phba->HAregaddr) & HA_ERATT) { /* Clear Chip error bit */ writel(HA_ERATT, phba->HAregaddr); phba->pport->stopped = 1; } mbox = 0; ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); mbox_buf = phba->MBslimaddr; writel(mbox, mbox_buf); for (i = 0; readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) mdelay(1); if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || phba->pport->stopped) goto restore_hc; else goto clear_errat; } ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; for (i = 0; readl(resp_buf) != mbox && i < 500; i++) mdelay(1); clear_errat: while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) mdelay(1); if (readl(phba->HAregaddr) & HA_ERATT) { writel(HA_ERATT, phba->HAregaddr); phba->pport->stopped = 1; } restore_hc: phba->link_flag &= ~LS_IGNORE_ERATT; writel(hc_copy, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } int lpfc_sli_brdkill(struct lpfc_hba *phba) { struct lpfc_sli *psli; LPFC_MBOXQ_t *pmb; uint32_t status; uint32_t ha_copy; int retval; int i = 0; psli = &phba->sli; /* Kill HBA */ lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0329 Kill HBA Data: x%x x%x\n", phba->pport->port_state, psli->sli_flag); if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) == 0) return 1; /* Disable the error attention */ spin_lock_irq(&phba->hbalock); status = readl(phba->HCregaddr); status &= ~HC_ERINT_ENA; writel(status, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ phba->link_flag |= LS_IGNORE_ERATT; spin_unlock_irq(&phba->hbalock); lpfc_kill_board(phba, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (retval != MBX_SUCCESS) { if (retval != MBX_BUSY) mempool_free(pmb, phba->mbox_mem_pool); spin_lock_irq(&phba->hbalock); phba->link_flag &= ~LS_IGNORE_ERATT; spin_unlock_irq(&phba->hbalock); return 1; } psli->sli_flag &= ~LPFC_SLI2_ACTIVE; mempool_free(pmb, phba->mbox_mem_pool); /* There is no completion for a KILL_BOARD mbox cmd. Check for an error * attention every 100ms for 3 seconds. If we don't get ERATT after * 3 seconds we still set HBA_ERROR state because the status of the * board is now undefined. */ ha_copy = readl(phba->HAregaddr); while ((i++ < 30) && !(ha_copy & HA_ERATT)) { mdelay(100); ha_copy = readl(phba->HAregaddr); } del_timer_sync(&psli->mbox_tmo); if (ha_copy & HA_ERATT) { writel(HA_ERATT, phba->HAregaddr); phba->pport->stopped = 1; } spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; phba->link_flag &= ~LS_IGNORE_ERATT; spin_unlock_irq(&phba->hbalock); psli->mbox_active = NULL; lpfc_hba_down_post(phba); phba->link_state = LPFC_HBA_ERROR; return ha_copy & HA_ERATT ? 0 : 1; } int lpfc_sli_brdreset(struct lpfc_hba *phba) { struct lpfc_sli *psli; struct lpfc_sli_ring *pring; uint16_t cfg_value; int i; psli = &phba->sli; /* Reset HBA */ lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0325 Reset HBA Data: x%x x%x\n", phba->pport->port_state, psli->sli_flag); /* perform board reset */ phba->fc_eventTag = 0; phba->pport->fc_myDID = 0; phba->pport->fc_prevDID = 0; /* Turn off parity checking and serr during the physical reset */ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value & ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); /* Now toggle INITFF bit in the Host Control Register */ writel(HC_INITFF, phba->HCregaddr); mdelay(1); readl(phba->HCregaddr); /* flush */ writel(0, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ /* Restore PCI cmd register */ pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); /* Initialize relevant SLI info */ for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; pring->flag = 0; pring->rspidx = 0; pring->next_cmdidx = 0; pring->local_getidx = 0; pring->cmdidx = 0; pring->missbufcnt = 0; } phba->link_state = LPFC_WARM_START; return 0; } int lpfc_sli_brdrestart(struct lpfc_hba *phba) { MAILBOX_t *mb; struct lpfc_sli *psli; uint16_t skip_post; volatile uint32_t word0; void __iomem *to_slim; spin_lock_irq(&phba->hbalock); psli = &phba->sli; /* Restart HBA */ lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0337 Restart HBA Data: x%x x%x\n", phba->pport->port_state, psli->sli_flag); word0 = 0; mb = (MAILBOX_t *) &word0; mb->mbxCommand = MBX_RESTART; mb->mbxHc = 1; lpfc_reset_barrier(phba); to_slim = phba->MBslimaddr; writel(*(uint32_t *) mb, to_slim); readl(to_slim); /* flush */ /* Only skip post after fc_ffinit is completed */ if (phba->pport->port_state) { skip_post = 1; word0 = 1; /* This is really setting up word1 */ } else { skip_post = 0; word0 = 0; /* This is really setting up word1 */ } to_slim = phba->MBslimaddr + sizeof (uint32_t); writel(*(uint32_t *) mb, to_slim); readl(to_slim); /* flush */ lpfc_sli_brdreset(phba); phba->pport->stopped = 0; phba->link_state = LPFC_INIT_START; spin_unlock_irq(&phba->hbalock); memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); psli->stats_start = get_seconds(); if (skip_post) mdelay(100); else mdelay(2000); lpfc_hba_down_post(phba); return 0; } static int lpfc_sli_chipset_init(struct lpfc_hba *phba) { uint32_t status, i = 0; /* Read the HBA Host Status Register */ status = readl(phba->HSregaddr); /* Check status register to see what current state is */ i = 0; while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { /* Check every 100ms for 5 retries, then every 500ms for 5, then * every 2.5 sec for 5, then reset board and every 2.5 sec for * 4. */ if (i++ >= 20) { /* Adapter failed to init, timeout, status reg */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0436 Adapter failed to init, " "timeout, status reg x%x\n", status); phba->link_state = LPFC_HBA_ERROR; return -ETIMEDOUT; } /* Check to see if any errors occurred during init */ if (status & HS_FFERM) { /* ERROR: During chipset initialization */ /* Adapter failed to init, chipset, status reg */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0437 Adapter failed to init, " "chipset, status reg x%x\n", status); phba->link_state = LPFC_HBA_ERROR; return -EIO; } if (i <= 5) { msleep(10); } else if (i <= 10) { msleep(500); } else { msleep(2500); } if (i == 15) { /* Do post */ phba->pport->port_state = LPFC_VPORT_UNKNOWN; lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ status = readl(phba->HSregaddr); } /* Check to see if any errors occurred during init */ if (status & HS_FFERM) { /* ERROR: During chipset initialization */ /* Adapter failed to init, chipset, status reg */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0438 Adapter failed to init, chipset, " "status reg x%x\n", status); phba->link_state = LPFC_HBA_ERROR; return -EIO; } /* Clear all interrupt enable conditions */ writel(0, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ /* setup host attn register */ writel(0xffffffff, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ return 0; } int lpfc_sli_hbq_count(void) { return ARRAY_SIZE(lpfc_hbq_defs); } static int lpfc_sli_hbq_entry_count(void) { int hbq_count = lpfc_sli_hbq_count(); int count = 0; int i; for (i = 0; i < hbq_count; ++i) count += lpfc_hbq_defs[i]->entry_count; return count; } int lpfc_sli_hbq_size(void) { return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); } static int lpfc_sli_hbq_setup(struct lpfc_hba *phba) { int hbq_count = lpfc_sli_hbq_count(); LPFC_MBOXQ_t *pmb; MAILBOX_t *pmbox; uint32_t hbqno; uint32_t hbq_entry_index; /* Get a Mailbox buffer to setup mailbox * commands for HBA initialization */ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) return -ENOMEM; pmbox = &pmb->mb; /* Initialize the struct lpfc_sli_hbq structure for each hbq */ phba->link_state = LPFC_INIT_MBX_CMDS; hbq_entry_index = 0; for (hbqno = 0; hbqno < hbq_count; ++hbqno) { phba->hbqs[hbqno].next_hbqPutIdx = 0; phba->hbqs[hbqno].hbqPutIdx = 0; phba->hbqs[hbqno].local_hbqGetIdx = 0; phba->hbqs[hbqno].entry_count = lpfc_hbq_defs[hbqno]->entry_count; lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], hbq_entry_index, pmb); hbq_entry_index += phba->hbqs[hbqno].entry_count; if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { /* Adapter failed to init, mbxCmd CFG_RING, mbxStatus , ring */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, "1805 Adapter failed to init. " "Data: x%x x%x x%x\n", pmbox->mbxCommand, pmbox->mbxStatus, hbqno); phba->link_state = LPFC_HBA_ERROR; mempool_free(pmb, phba->mbox_mem_pool); return ENXIO; } } phba->hbq_count = hbq_count; mempool_free(pmb, phba->mbox_mem_pool); /* Initially populate or replenish the HBQs */ for (hbqno = 0; hbqno < hbq_count; ++hbqno) { if (lpfc_sli_hbqbuf_init_hbqs(phba, hbqno)) return -ENOMEM; } return 0; } static int lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode) { LPFC_MBOXQ_t *pmb; uint32_t resetcount = 0, rc = 0, done = 0; pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } phba->sli_rev = sli_mode; while (resetcount < 2 && !done) { spin_lock_irq(&phba->hbalock); phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; spin_unlock_irq(&phba->hbalock); phba->pport->port_state = LPFC_VPORT_UNKNOWN; lpfc_sli_brdrestart(phba); msleep(2500); rc = lpfc_sli_chipset_init(phba); if (rc) break; spin_lock_irq(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irq(&phba->hbalock); resetcount++; /* Call pre CONFIG_PORT mailbox command initialization. A * value of 0 means the call was successful. Any other * nonzero value is a failure, but if ERESTART is returned, * the driver may reset the HBA and try again. */ rc = lpfc_config_port_prep(phba); if (rc == -ERESTART) { phba->link_state = LPFC_LINK_UNKNOWN; continue; } else if (rc) { break; } phba->link_state = LPFC_INIT_MBX_CMDS; lpfc_config_port(phba, pmb); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0442 Adapter failed to init, mbxCmd x%x " "CONFIG_PORT, mbxStatus x%x Data: x%x\n", pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); spin_lock_irq(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; spin_unlock_irq(&phba->hbalock); rc = -ENXIO; } else { done = 1; phba->max_vpi = (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) != 0 ? pmb->mb.un.varCfgPort.max_vpi : 0; } } if (!done) { rc = -EINVAL; goto do_prep_failed; } if ((pmb->mb.un.varCfgPort.sli_mode == 3) && (!pmb->mb.un.varCfgPort.cMA)) { rc = -ENXIO; goto do_prep_failed; } return rc; do_prep_failed: mempool_free(pmb, phba->mbox_mem_pool); return rc; } int lpfc_sli_hba_setup(struct lpfc_hba *phba) { uint32_t rc; int mode = 3; switch (lpfc_sli_mode) { case 2: if (phba->cfg_enable_npiv) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, "1824 NPIV enabled: Override lpfc_sli_mode " "parameter (%d) to auto (0).\n", lpfc_sli_mode); break; } mode = 2; break; case 0: case 3: break; default: lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, "1819 Unrecognized lpfc_sli_mode " "parameter: %d.\n", lpfc_sli_mode); break; } rc = lpfc_do_config_port(phba, mode); if (rc && lpfc_sli_mode == 3) lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, "1820 Unable to select SLI-3. " "Not supported by adapter.\n"); if (rc && mode != 2) rc = lpfc_do_config_port(phba, 2); if (rc) goto lpfc_sli_hba_setup_error; if (phba->sli_rev == 3) { phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; phba->sli3_options |= LPFC_SLI3_ENABLED; phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; } else { phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; phba->sli3_options = 0; } lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "0444 Firmware in SLI %x mode. Max_vpi %d\n", phba->sli_rev, phba->max_vpi); rc = lpfc_sli_ring_map(phba); if (rc) goto lpfc_sli_hba_setup_error; /* Init HBQs */ if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { rc = lpfc_sli_hbq_setup(phba); if (rc) goto lpfc_sli_hba_setup_error; } phba->sli.sli_flag |= LPFC_PROCESS_LA; rc = lpfc_config_port_post(phba); if (rc) goto lpfc_sli_hba_setup_error; return rc; lpfc_sli_hba_setup_error: phba->link_state = LPFC_HBA_ERROR; lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "0445 Firmware initialization failed\n"); return rc; } /*! lpfc_mbox_timeout * * \pre * \post * \param hba Pointer to per struct lpfc_hba structure * \param l1 Pointer to the driver's mailbox queue. * \return * void * * \b Description: * * This routine handles mailbox timeout events at timer interrupt context. */ void lpfc_mbox_timeout(unsigned long ptr) { struct lpfc_hba *phba = (struct lpfc_hba *) ptr; unsigned long iflag; uint32_t tmo_posted; spin_lock_irqsave(&phba->pport->work_port_lock, iflag); tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; if (!tmo_posted) phba->pport->work_port_events |= WORKER_MBOX_TMO; spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); if (!tmo_posted) { spin_lock_irqsave(&phba->hbalock, iflag); if (phba->work_wait) lpfc_worker_wake_up(phba); spin_unlock_irqrestore(&phba->hbalock, iflag); } } void lpfc_mbox_timeout_handler(struct lpfc_hba *phba) { LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; MAILBOX_t *mb = &pmbox->mb; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { return; } /* Mbox cmd timeout */ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", mb->mbxCommand, phba->pport->port_state, phba->sli.sli_flag, phba->sli.mbox_active); /* Setting state unknown so lpfc_sli_abort_iocb_ring * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing * it to fail all oustanding SCSI IO. */ spin_lock_irq(&phba->pport->work_port_lock); phba->pport->work_port_events &= ~WORKER_MBOX_TMO; spin_unlock_irq(&phba->pport->work_port_lock); spin_lock_irq(&phba->hbalock); phba->link_state = LPFC_LINK_UNKNOWN; phba->pport->fc_flag |= FC_ESTABLISH_LINK; psli->sli_flag &= ~LPFC_SLI2_ACTIVE; spin_unlock_irq(&phba->hbalock); pring = &psli->ring[psli->fcp_ring]; lpfc_sli_abort_iocb_ring(phba, pring); lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "0316 Resetting board due to mailbox timeout\n"); /* * lpfc_offline calls lpfc_sli_hba_down which will clean up * on oustanding mailbox commands. */ lpfc_offline_prep(phba); lpfc_offline(phba); lpfc_sli_brdrestart(phba); if (lpfc_online(phba) == 0) /* Initialize the HBA */ mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); lpfc_unblock_mgmt_io(phba); return; } int lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) { MAILBOX_t *mb; struct lpfc_sli *psli = &phba->sli; uint32_t status, evtctr; uint32_t ha_copy; int i; unsigned long drvr_flag = 0; volatile uint32_t word0, ldata; void __iomem *to_slim; if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { if(!pmbox->vport) { lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT, "1806 Mbox x%x failed. No vport\n", pmbox->mb.mbxCommand); dump_stack(); return MBXERR_ERROR; } } /* If the PCI channel is in offline state, do not post mbox. */ if (unlikely(pci_channel_offline(phba->pcidev))) return MBX_NOT_FINISHED; spin_lock_irqsave(&phba->hbalock, drvr_flag); psli = &phba->sli; mb = &pmbox->mb; status = MBX_SUCCESS; if (phba->link_state == LPFC_HBA_ERROR) { spin_unlock_irqrestore(&phba->hbalock, drvr_flag); /* Mbox command cannot issue */ LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) return MBX_NOT_FINISHED; } if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { spin_unlock_irqrestore(&phba->hbalock, drvr_flag); LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) return MBX_NOT_FINISHED; } if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { /* Polling for a mbox command when another one is already active * is not allowed in SLI. Also, the driver must have established * SLI2 mode to queue and process multiple mbox commands. */ if (flag & MBX_POLL) { spin_unlock_irqrestore(&phba->hbalock, drvr_flag); /* Mbox command cannot issue */ LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); return MBX_NOT_FINISHED; } if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { spin_unlock_irqrestore(&phba->hbalock, drvr_flag); /* Mbox command cannot issue */ LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); return MBX_NOT_FINISHED; } /* Handle STOP IOCB processing flag. This is only meaningful * if we are not polling for mbox completion. */ if (flag & MBX_STOP_IOCB) { flag &= ~MBX_STOP_IOCB; /* Now flag each ring */ for (i = 0; i < psli->num_rings; i++) { /* If the ring is active, flag it */ if (psli->ring[i].cmdringaddr) { psli->ring[i].flag |= LPFC_STOP_IOCB_MBX; } } } /* Another mailbox command is still being processed, queue this * command to be processed later. */ lpfc_mbox_put(phba, pmbox); /* Mbox cmd issue - BUSY */ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, "(%d):0308 Mbox cmd issue - BUSY Data: " "x%x x%x x%x x%x\n", pmbox->vport ? pmbox->vport->vpi : 0xffffff, mb->mbxCommand, phba->pport->port_state, psli->sli_flag, flag); psli->slistat.mbox_busy++; spin_unlock_irqrestore(&phba->hbalock, drvr_flag); if (pmbox->vport) { lpfc_debugfs_disc_trc(pmbox->vport, LPFC_DISC_TRC_MBOX_VPORT, "MBOX Bsy vport: cmd:x%x mb:x%x x%x", (uint32_t)mb->mbxCommand, mb->un.varWords[0], mb->un.varWords[1]); } else { lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_MBOX, "MBOX Bsy: cmd:x%x mb:x%x x%x", (uint32_t)mb->mbxCommand, mb->un.varWords[0], mb->un.varWords[1]); } return MBX_BUSY; } /* Handle STOP IOCB processing flag. This is only meaningful * if we are not polling for mbox completion. */ if (flag & MBX_STOP_IOCB) { flag &= ~MBX_STOP_IOCB; if (flag == MBX_NOWAIT) { /* Now flag each ring */ for (i = 0; i < psli->num_rings; i++) { /* If the ring is active, flag it */ if (psli->ring[i].cmdringaddr) { psli->ring[i].flag |= LPFC_STOP_IOCB_MBX; } } } } psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; /* If we are not polling, we MUST be in SLI2 mode */ if (flag != MBX_POLL) { if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && (mb->mbxCommand != MBX_KILL_BOARD)) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(&phba->hbalock, drvr_flag); /* Mbox command cannot issue */ LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); return MBX_NOT_FINISHED; } /* timeout active mbox command */ mod_timer(&psli->mbox_tmo, (jiffies + (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); } /* Mailbox cmd issue */ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " "x%x\n", pmbox->vport ? pmbox->vport->vpi : 0, mb->mbxCommand, phba->pport->port_state, psli->sli_flag, flag); if (mb->mbxCommand != MBX_HEARTBEAT) { if (pmbox->vport) { lpfc_debugfs_disc_trc(pmbox->vport, LPFC_DISC_TRC_MBOX_VPORT, "MBOX Send vport: cmd:x%x mb:x%x x%x", (uint32_t)mb->mbxCommand, mb->un.varWords[0], mb->un.varWords[1]); } else { lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_MBOX, "MBOX Send: cmd:x%x mb:x%x x%x", (uint32_t)mb->mbxCommand, mb->un.varWords[0], mb->un.varWords[1]); } } psli->slistat.mbox_cmd++; evtctr = psli->slistat.mbox_event; /* next set own bit for the adapter and copy over command word */ mb->mbxOwner = OWN_CHIP; if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* First copy command data to host SLIM area */ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); } else { if (mb->mbxCommand == MBX_CONFIG_PORT) { /* copy command data into host mbox for cmpl */ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); } /* First copy mbox command data to HBA SLIM, skip past first word */ to_slim = phba->MBslimaddr + sizeof (uint32_t); lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], MAILBOX_CMD_SIZE - sizeof (uint32_t)); /* Next copy over first word, with mbxOwner set */ ldata = *((volatile uint32_t *)mb); to_slim = phba->MBslimaddr; writel(ldata, to_slim); readl(to_slim); /* flush */ if (mb->mbxCommand == MBX_CONFIG_PORT) { /* switch over to host mailbox */ psli->sli_flag |= LPFC_SLI2_ACTIVE; } } wmb(); /* interrupt board to doit right away */ writel(CA_MBATT, phba->CAregaddr); readl(phba->CAregaddr); /* flush */ switch (flag) { case MBX_NOWAIT: /* Don't wait for it to finish, just return */ psli->mbox_active = pmbox; break; case MBX_POLL: psli->mbox_active = NULL; if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* First read mbox status word */ word0 = *((volatile uint32_t *)&phba->slim2p->mbx); word0 = le32_to_cpu(word0); } else { /* First read mbox status word */ word0 = readl(phba->MBslimaddr); } /* Read the HBA Host Attention Register */ ha_copy = readl(phba->HAregaddr); i = lpfc_mbox_tmo_val(phba, mb->mbxCommand); i *= 1000; /* Convert to ms */ /* Wait for command to complete */ while (((word0 & OWN_CHIP) == OWN_CHIP) || (!(ha_copy & HA_MBATT) && (phba->link_state > LPFC_WARM_START))) { if (i-- <= 0) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(&phba->hbalock, drvr_flag); return MBX_NOT_FINISHED; } /* Check if we took a mbox interrupt while we were polling */ if (((word0 & OWN_CHIP) != OWN_CHIP) && (evtctr != psli->slistat.mbox_event)) break; spin_unlock_irqrestore(&phba->hbalock, drvr_flag); msleep(1); spin_lock_irqsave(&phba->hbalock, drvr_flag); if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* First copy command data */ word0 = *((volatile uint32_t *) &phba->slim2p->mbx); word0 = le32_to_cpu(word0); if (mb->mbxCommand == MBX_CONFIG_PORT) { MAILBOX_t *slimmb; volatile uint32_t slimword0; /* Check real SLIM for any errors */ slimword0 = readl(phba->MBslimaddr); slimmb = (MAILBOX_t *) & slimword0; if (((slimword0 & OWN_CHIP) != OWN_CHIP) && slimmb->mbxStatus) { psli->sli_flag &= ~LPFC_SLI2_ACTIVE; word0 = slimword0; } } } else { /* First copy command data */ word0 = readl(phba->MBslimaddr); } /* Read the HBA Host Attention Register */ ha_copy = readl(phba->HAregaddr); } if (psli->sli_flag & LPFC_SLI2_ACTIVE) { /* copy results back to user */ lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, MAILBOX_CMD_SIZE); } else { /* First copy command data */ lpfc_memcpy_from_slim(mb, phba->MBslimaddr, MAILBOX_CMD_SIZE); if ((mb->mbxCommand == MBX_DUMP_MEMORY) && pmbox->context2) { lpfc_memcpy_from_slim((void *)pmbox->context2, phba->MBslimaddr + DMP_RSP_OFFSET, mb->un.varDmp.word_cnt); } } writel(HA_MBATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; status = mb->mbxStatus; } spin_unlock_irqrestore(&phba->hbalock, drvr_flag); return status; } /* * Caller needs to hold lock. */ static void __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *piocb) { /* Insert the caller's iocb in the txq tail for later processing. */ list_add_tail(&piocb->list, &pring->txq); pring->txq_cnt++; } static struct lpfc_iocbq * lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq **piocb) { struct lpfc_iocbq * nextiocb; nextiocb = lpfc_sli_ringtx_get(phba, pring); if (!nextiocb) { nextiocb = *piocb; *piocb = NULL; } return nextiocb; } /* * Lockless version of lpfc_sli_issue_iocb. */ int __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *piocb, uint32_t flag) { struct lpfc_iocbq *nextiocb; IOCB_t *iocb; if (piocb->iocb_cmpl && (!piocb->vport) && (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, "1807 IOCB x%x failed. No vport\n", piocb->iocb.ulpCommand); dump_stack(); return IOCB_ERROR; } /* If the PCI channel is in offline state, do not post iocbs. */ if (unlikely(pci_channel_offline(phba->pcidev))) return IOCB_ERROR; /* * We should never get an IOCB if we are in a < LINK_DOWN state */ if (unlikely(phba->link_state < LPFC_LINK_DOWN)) return IOCB_ERROR; /* * Check to see if we are blocking IOCB processing because of a * outstanding mbox command. */ if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) goto iocb_busy; if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { /* * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF * can be issued if the link is not up. */ switch (piocb->iocb.ulpCommand) { case CMD_QUE_RING_BUF_CN: case CMD_QUE_RING_BUF64_CN: /* * For IOCBs, like QUE_RING_BUF, that have no rsp ring * completion, iocb_cmpl MUST be 0. */ if (piocb->iocb_cmpl) piocb->iocb_cmpl = NULL; /*FALLTHROUGH*/ case CMD_CREATE_XRI_CR: case CMD_CLOSE_XRI_CN: case CMD_CLOSE_XRI_CX: break; default: goto iocb_busy; } /* * For FCP commands, we must be in a state where we can process link * attention events. */ } else if (unlikely(pring->ringno == phba->sli.fcp_ring && !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { goto iocb_busy; } while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); if (iocb) lpfc_sli_update_ring(phba, pring); else lpfc_sli_update_full_ring(phba, pring); if (!piocb) return IOCB_SUCCESS; goto out_busy; iocb_busy: pring->stats.iocb_cmd_delay++; out_busy: if (!(flag & SLI_IOCB_RET_IOCB)) { __lpfc_sli_ringtx_put(phba, pring, piocb); return IOCB_SUCCESS; } return IOCB_BUSY; } int lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *piocb, uint32_t flag) { unsigned long iflags; int rc; spin_lock_irqsave(&phba->hbalock, iflags); rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); spin_unlock_irqrestore(&phba->hbalock, iflags); return rc; } static int lpfc_extra_ring_setup( struct lpfc_hba *phba) { struct lpfc_sli *psli; struct lpfc_sli_ring *pring; psli = &phba->sli; /* Adjust cmd/rsp ring iocb entries more evenly */ /* Take some away from the FCP ring */ pring = &psli->ring[psli->fcp_ring]; pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; /* and give them to the extra ring */ pring = &psli->ring[psli->extra_ring]; pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; /* Setup default profile for this ring */ pring->iotag_max = 4096; pring->num_mask = 1; pring->prt[0].profile = 0; /* Mask 0 */ pring->prt[0].rctl = phba->cfg_multi_ring_rctl; pring->prt[0].type = phba->cfg_multi_ring_type; pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; return 0; } int lpfc_sli_setup(struct lpfc_hba *phba) { int i, totiocbsize = 0; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; psli->num_rings = MAX_CONFIGURED_RINGS; psli->sli_flag = 0; psli->fcp_ring = LPFC_FCP_RING; psli->next_ring = LPFC_FCP_NEXT_RING; psli->extra_ring = LPFC_EXTRA_RING; psli->iocbq_lookup = NULL; psli->iocbq_lookup_len = 0; psli->last_iotag = 0; for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; switch (i) { case LPFC_FCP_RING: /* ring 0 - FCP */ /* numCiocb and numRiocb are used in config_port */ pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; pring->sizeCiocb = (phba->sli_rev == 3) ? SLI3_IOCB_CMD_SIZE : SLI2_IOCB_CMD_SIZE; pring->sizeRiocb = (phba->sli_rev == 3) ? SLI3_IOCB_RSP_SIZE : SLI2_IOCB_RSP_SIZE; pring->iotag_ctr = 0; pring->iotag_max = (phba->cfg_hba_queue_depth * 2); pring->fast_iotag = pring->iotag_max; pring->num_mask = 0; break; case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ /* numCiocb and numRiocb are used in config_port */ pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; pring->sizeCiocb = (phba->sli_rev == 3) ? SLI3_IOCB_CMD_SIZE : SLI2_IOCB_CMD_SIZE; pring->sizeRiocb = (phba->sli_rev == 3) ? SLI3_IOCB_RSP_SIZE : SLI2_IOCB_RSP_SIZE; pring->iotag_max = phba->cfg_hba_queue_depth; pring->num_mask = 0; break; case LPFC_ELS_RING: /* ring 2 - ELS / CT */ /* numCiocb and numRiocb are used in config_port */ pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; pring->sizeCiocb = (phba->sli_rev == 3) ? SLI3_IOCB_CMD_SIZE : SLI2_IOCB_CMD_SIZE; pring->sizeRiocb = (phba->sli_rev == 3) ? SLI3_IOCB_RSP_SIZE : SLI2_IOCB_RSP_SIZE; pring->fast_iotag = 0; pring->iotag_ctr = 0; pring->iotag_max = 4096; pring->num_mask = 4; pring->prt[0].profile = 0; /* Mask 0 */ pring->prt[0].rctl = FC_ELS_REQ; pring->prt[0].type = FC_ELS_DATA; pring->prt[0].lpfc_sli_rcv_unsol_event = lpfc_els_unsol_event; pring->prt[1].profile = 0; /* Mask 1 */ pring->prt[1].rctl = FC_ELS_RSP; pring->prt[1].type = FC_ELS_DATA; pring->prt[1].lpfc_sli_rcv_unsol_event = lpfc_els_unsol_event; pring->prt[2].profile = 0; /* Mask 2 */ /* NameServer Inquiry */ pring->prt[2].rctl = FC_UNSOL_CTL; /* NameServer */ pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; pring->prt[2].lpfc_sli_rcv_unsol_event = lpfc_ct_unsol_event; pring->prt[3].profile = 0; /* Mask 3 */ /* NameServer response */ pring->prt[3].rctl = FC_SOL_CTL; /* NameServer */ pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; pring->prt[3].lpfc_sli_rcv_unsol_event = lpfc_ct_unsol_event; break; } totiocbsize += (pring->numCiocb * pring->sizeCiocb) + (pring->numRiocb * pring->sizeRiocb); } if (totiocbsize > MAX_SLIM_IOCB_SIZE) { /* Too many cmd / rsp ring entries in SLI2 SLIM */ printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " "SLI2 SLIM Data: x%x x%lx\n", phba->brd_no, totiocbsize, (unsigned long) MAX_SLIM_IOCB_SIZE); } if (phba->cfg_multi_ring_support == 2) lpfc_extra_ring_setup(phba); return 0; } int lpfc_sli_queue_setup(struct lpfc_hba *phba) { struct lpfc_sli *psli; struct lpfc_sli_ring *pring; int i; psli = &phba->sli; spin_lock_irq(&phba->hbalock); INIT_LIST_HEAD(&psli->mboxq); INIT_LIST_HEAD(&psli->mboxq_cmpl); /* Initialize list headers for txq and txcmplq as double linked lists */ for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; pring->ringno = i; pring->next_cmdidx = 0; pring->local_getidx = 0; pring->cmdidx = 0; INIT_LIST_HEAD(&pring->txq); INIT_LIST_HEAD(&pring->txcmplq); INIT_LIST_HEAD(&pring->iocb_continueq); INIT_LIST_HEAD(&pring->postbufq); } spin_unlock_irq(&phba->hbalock); return 1; } int lpfc_sli_host_down(struct lpfc_vport *vport) { LIST_HEAD(completions); struct lpfc_hba *phba = vport->phba; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; struct lpfc_iocbq *iocb, *next_iocb; int i; unsigned long flags = 0; uint16_t prev_pring_flag; lpfc_cleanup_discovery_resources(vport); spin_lock_irqsave(&phba->hbalock, flags); for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; prev_pring_flag = pring->flag; if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */ pring->flag |= LPFC_DEFERRED_RING_EVENT; /* * Error everything on the txq since these iocbs have not been * given to the FW yet. */ list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { if (iocb->vport != vport) continue; list_move_tail(&iocb->list, &completions); pring->txq_cnt--; } /* Next issue ABTS for everything on the txcmplq */ list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { if (iocb->vport != vport) continue; lpfc_sli_issue_abort_iotag(phba, pring, iocb); } pring->flag = prev_pring_flag; } spin_unlock_irqrestore(&phba->hbalock, flags); while (!list_empty(&completions)) { list_remove_head(&completions, iocb, struct lpfc_iocbq, list); if (!iocb->iocb_cmpl) lpfc_sli_release_iocbq(phba, iocb); else { iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN; (iocb->iocb_cmpl) (phba, iocb, iocb); } } return 1; } int lpfc_sli_hba_down(struct lpfc_hba *phba) { LIST_HEAD(completions); struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; LPFC_MBOXQ_t *pmb; struct lpfc_iocbq *iocb; IOCB_t *cmd = NULL; int i; unsigned long flags = 0; lpfc_hba_down_prep(phba); lpfc_fabric_abort_hba(phba); spin_lock_irqsave(&phba->hbalock, flags); for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */ pring->flag |= LPFC_DEFERRED_RING_EVENT; /* * Error everything on the txq since these iocbs have not been * given to the FW yet. */ list_splice_init(&pring->txq, &completions); pring->txq_cnt = 0; } spin_unlock_irqrestore(&phba->hbalock, flags); while (!list_empty(&completions)) { list_remove_head(&completions, iocb, struct lpfc_iocbq, list); cmd = &iocb->iocb; if (!iocb->iocb_cmpl) lpfc_sli_release_iocbq(phba, iocb); else { cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_DOWN; (iocb->iocb_cmpl) (phba, iocb, iocb); } } /* Return any active mbox cmds */ del_timer_sync(&psli->mbox_tmo); spin_lock_irqsave(&phba->hbalock, flags); spin_lock(&phba->pport->work_port_lock); phba->pport->work_port_events &= ~WORKER_MBOX_TMO; spin_unlock(&phba->pport->work_port_lock); if (psli->mbox_active) { list_add_tail(&psli->mbox_active->list, &completions); psli->mbox_active = NULL; psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; } /* Return any pending or completed mbox cmds */ list_splice_init(&phba->sli.mboxq, &completions); list_splice_init(&phba->sli.mboxq_cmpl, &completions); INIT_LIST_HEAD(&psli->mboxq); INIT_LIST_HEAD(&psli->mboxq_cmpl); spin_unlock_irqrestore(&phba->hbalock, flags); while (!list_empty(&completions)) { list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); pmb->mb.mbxStatus = MBX_NOT_FINISHED; if (pmb->mbox_cmpl) { pmb->mbox_cmpl(phba,pmb); } } return 1; } void lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) { uint32_t *src = srcp; uint32_t *dest = destp; uint32_t ldata; int i; for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { ldata = *src; ldata = le32_to_cpu(ldata); *dest = ldata; src++; dest++; } } int lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_dmabuf *mp) { /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up later */ spin_lock_irq(&phba->hbalock); list_add_tail(&mp->list, &pring->postbufq); pring->postbufq_cnt++; spin_unlock_irq(&phba->hbalock); return 0; } struct lpfc_dmabuf * lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, dma_addr_t phys) { struct lpfc_dmabuf *mp, *next_mp; struct list_head *slp = &pring->postbufq; /* Search postbufq, from the begining, looking for a match on phys */ spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { if (mp->phys == phys) { list_del_init(&mp->list); pring->postbufq_cnt--; spin_unlock_irq(&phba->hbalock); return mp; } } spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0410 Cannot find virtual addr for mapped buf on " "ring %d Data x%llx x%p x%p x%x\n", pring->ringno, (unsigned long long)phys, slp->next, slp->prev, pring->postbufq_cnt); return NULL; } static void lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { IOCB_t *irsp = &rspiocb->iocb; uint16_t abort_iotag, abort_context; struct lpfc_iocbq *abort_iocb; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; abort_iocb = NULL; if (irsp->ulpStatus) { abort_context = cmdiocb->iocb.un.acxri.abortContextTag; abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; spin_lock_irq(&phba->hbalock); if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, "0327 Cannot abort els iocb %p " "with tag %x context %x, abort status %x, " "abort code %x\n", abort_iocb, abort_iotag, abort_context, irsp->ulpStatus, irsp->un.ulpWord[4]); /* * make sure we have the right iocbq before taking it * off the txcmplq and try to call completion routine. */ if (!abort_iocb || abort_iocb->iocb.ulpContext != abort_context || (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) spin_unlock_irq(&phba->hbalock); else { list_del_init(&abort_iocb->list); pring->txcmplq_cnt--; spin_unlock_irq(&phba->hbalock); abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); } } lpfc_sli_release_iocbq(phba, cmdiocb); return; } static void lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { IOCB_t *irsp = &rspiocb->iocb; /* ELS cmd tag completes */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "0133 Ignoring ELS cmd tag x%x completion Data: " "x%x x%x x%x\n", irsp->ulpIoTag, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout); if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) lpfc_ct_free_iocb(phba, cmdiocb); else lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *cmdiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct lpfc_iocbq *abtsiocbp; IOCB_t *icmd = NULL; IOCB_t *iabt = NULL; int retval = IOCB_ERROR; /* * There are certain command types we don't want to abort. And we * don't want to abort commands that are already in the process of * being aborted. */ icmd = &cmdiocb->iocb; if (icmd->ulpCommand == CMD_ABORT_XRI_CN || icmd->ulpCommand == CMD_CLOSE_XRI_CN || (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) return 0; /* If we're unloading, don't abort iocb on the ELS ring, but change the * callback so that nothing happens when it finishes. */ if ((vport->load_flag & FC_UNLOADING) && (pring->ringno == LPFC_ELS_RING)) { if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; else cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; goto abort_iotag_exit; } /* issue ABTS for this IOCB based on iotag */ abtsiocbp = __lpfc_sli_get_iocbq(phba); if (abtsiocbp == NULL) return 0; /* This signals the response to set the correct status * before calling the completion handler. */ cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; iabt = &abtsiocbp->iocb; iabt->un.acxri.abortType = ABORT_TYPE_ABTS; iabt->un.acxri.abortContextTag = icmd->ulpContext; iabt->un.acxri.abortIoTag = icmd->ulpIoTag; iabt->ulpLe = 1; iabt->ulpClass = icmd->ulpClass; if (phba->link_state >= LPFC_LINK_UP) iabt->ulpCommand = CMD_ABORT_XRI_CN; else iabt->ulpCommand = CMD_CLOSE_XRI_CN; abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, "0339 Abort xri x%x, original iotag x%x, " "abort cmd iotag x%x\n", iabt->un.acxri.abortContextTag, iabt->un.acxri.abortIoTag, abtsiocbp->iotag); retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); abort_iotag_exit: /* * Caller to this routine should check for IOCB_ERROR * and handle it properly. This routine no longer removes * iocb off txcmplq and call compl in case of IOCB_ERROR. */ return retval; } static int lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) { struct lpfc_scsi_buf *lpfc_cmd; struct scsi_cmnd *cmnd; int rc = 1; if (!(iocbq->iocb_flag & LPFC_IO_FCP)) return rc; if (iocbq->vport != vport) return rc; lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); cmnd = lpfc_cmd->pCmd; if (cmnd == NULL) return rc; switch (ctx_cmd) { case LPFC_CTX_LUN: if ((cmnd->device->id == tgt_id) && (cmnd->device->lun == lun_id)) rc = 0; break; case LPFC_CTX_TGT: if (cmnd->device->id == tgt_id) rc = 0; break; case LPFC_CTX_HOST: rc = 0; break; default: printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", __FUNCTION__, ctx_cmd); break; } return rc; } int lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *iocbq; int sum, i; for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { iocbq = phba->sli.iocbq_lookup[i]; if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, ctx_cmd) == 0) sum++; } return sum; } void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { lpfc_sli_release_iocbq(phba, cmdiocb); return; } int lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *iocbq; struct lpfc_iocbq *abtsiocb; IOCB_t *cmd = NULL; int errcnt = 0, ret_val = 0; int i; for (i = 1; i <= phba->sli.last_iotag; i++) { iocbq = phba->sli.iocbq_lookup[i]; if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, abort_cmd) != 0) continue; /* issue ABTS for this IOCB based on iotag */ abtsiocb = lpfc_sli_get_iocbq(phba); if (abtsiocb == NULL) { errcnt++; continue; } cmd = &iocbq->iocb; abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; abtsiocb->iocb.ulpLe = 1; abtsiocb->iocb.ulpClass = cmd->ulpClass; abtsiocb->vport = phba->pport; if (lpfc_is_link_up(phba)) abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; else abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; /* Setup callback routine and issue the command. */ abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); if (ret_val == IOCB_ERROR) { lpfc_sli_release_iocbq(phba, abtsiocb); errcnt++; continue; } } return errcnt; } static void lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq, struct lpfc_iocbq *rspiocbq) { wait_queue_head_t *pdone_q; unsigned long iflags; spin_lock_irqsave(&phba->hbalock, iflags); cmdiocbq->iocb_flag |= LPFC_IO_WAKE; if (cmdiocbq->context2 && rspiocbq) memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, &rspiocbq->iocb, sizeof(IOCB_t)); pdone_q = cmdiocbq->context_un.wait_queue; if (pdone_q) wake_up(pdone_q); spin_unlock_irqrestore(&phba->hbalock, iflags); return; } /* * Issue the caller's iocb and wait for its completion, but no longer than the * caller's timeout. Note that iocb_flags is cleared before the * lpfc_sli_issue_call since the wake routine sets a unique value and by * definition this is a wait function. */ int lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *piocb, struct lpfc_iocbq *prspiocbq, uint32_t timeout) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); long timeleft, timeout_req = 0; int retval = IOCB_SUCCESS; uint32_t creg_val; /* * If the caller has provided a response iocbq buffer, then context2 * is NULL or its an error. */ if (prspiocbq) { if (piocb->context2) return IOCB_ERROR; piocb->context2 = prspiocbq; } piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; piocb->context_un.wait_queue = &done_q; piocb->iocb_flag &= ~LPFC_IO_WAKE; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { creg_val = readl(phba->HCregaddr); creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); if (retval == IOCB_SUCCESS) { timeout_req = timeout * HZ; timeleft = wait_event_timeout(done_q, piocb->iocb_flag & LPFC_IO_WAKE, timeout_req); if (piocb->iocb_flag & LPFC_IO_WAKE) { lpfc_printf_log(phba, KERN_INFO, LOG_SLI, "0331 IOCB wake signaled\n"); } else if (timeleft == 0) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0338 IOCB wait timeout error - no " "wake response Data x%x\n", timeout); retval = IOCB_TIMEDOUT; } else { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "0330 IOCB wake NOT set, " "Data x%x x%lx\n", timeout, (timeleft / jiffies)); retval = IOCB_TIMEDOUT; } } else { lpfc_printf_log(phba, KERN_INFO, LOG_SLI, ":0332 IOCB wait issue failed, Data x%x\n", retval); retval = IOCB_ERROR; } if (phba->cfg_poll & DISABLE_FCP_RING_INT) { creg_val = readl(phba->HCregaddr); creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } if (prspiocbq) piocb->context2 = NULL; piocb->context_un.wait_queue = NULL; piocb->iocb_cmpl = NULL; return retval; } int lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, uint32_t timeout) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); int retval; unsigned long flag; /* The caller must leave context1 empty. */ if (pmboxq->context1 != 0) return MBX_NOT_FINISHED; /* setup wake call as IOCB callback */ pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; /* setup context field to pass wait_queue pointer to wake function */ pmboxq->context1 = &done_q; /* now issue the command */ retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); if (retval == MBX_BUSY || retval == MBX_SUCCESS) { wait_event_interruptible_timeout(done_q, pmboxq->mbox_flag & LPFC_MBX_WAKE, timeout * HZ); spin_lock_irqsave(&phba->hbalock, flag); pmboxq->context1 = NULL; /* * if LPFC_MBX_WAKE flag is set the mailbox is completed * else do not free the resources. */ if (pmboxq->mbox_flag & LPFC_MBX_WAKE) retval = MBX_SUCCESS; else { retval = MBX_TIMEOUT; pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; } spin_unlock_irqrestore(&phba->hbalock, flag); } return retval; } int lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) { struct lpfc_vport *vport = phba->pport; int i = 0; uint32_t ha_copy; while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { if (i++ > LPFC_MBOX_TMO * 1000) return 1; /* * Call lpfc_sli_handle_mb_event only if a mailbox cmd * did finish. This way we won't get the misleading * "Stray Mailbox Interrupt" message. */ spin_lock_irq(&phba->hbalock); ha_copy = phba->work_ha; phba->work_ha &= ~HA_MBATT; spin_unlock_irq(&phba->hbalock); if (ha_copy & HA_MBATT) if (lpfc_sli_handle_mb_event(phba) == 0) i = 0; msleep(1); } return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; } irqreturn_t lpfc_intr_handler(int irq, void *dev_id) { struct lpfc_hba *phba; uint32_t ha_copy; uint32_t work_ha_copy; unsigned long status; int i; uint32_t control; MAILBOX_t *mbox, *pmbox; struct lpfc_vport *vport; struct lpfc_nodelist *ndlp; struct lpfc_dmabuf *mp; LPFC_MBOXQ_t *pmb; int rc; /* * Get the driver's phba structure from the dev_id and * assume the HBA is not interrupting. */ phba = (struct lpfc_hba *) dev_id; if (unlikely(!phba)) return IRQ_NONE; /* If the pci channel is offline, ignore all the interrupts. */ if (unlikely(pci_channel_offline(phba->pcidev))) return IRQ_NONE; phba->sli.slistat.sli_intr++; /* * Call the HBA to see if it is interrupting. If not, don't claim * the interrupt */ /* Ignore all interrupts during initialization. */ if (unlikely(phba->link_state < LPFC_LINK_DOWN)) return IRQ_NONE; /* * Read host attention register to determine interrupt source * Clear Attention Sources, except Error Attention (to * preserve status) and Link Attention */ spin_lock(&phba->hbalock); ha_copy = readl(phba->HAregaddr); /* If somebody is waiting to handle an eratt don't process it * here. The brdkill function will do this. */ if (phba->link_flag & LS_IGNORE_ERATT) ha_copy &= ~HA_ERATT; writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); readl(phba->HAregaddr); /* flush */ spin_unlock(&phba->hbalock); if (unlikely(!ha_copy)) return IRQ_NONE; work_ha_copy = ha_copy & phba->work_ha_mask; if (unlikely(work_ha_copy)) { if (work_ha_copy & HA_LATT) { if (phba->sli.sli_flag & LPFC_PROCESS_LA) { /* * Turn off Link Attention interrupts * until CLEAR_LA done */ spin_lock(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_PROCESS_LA; control = readl(phba->HCregaddr); control &= ~HC_LAINT_ENA; writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ spin_unlock(&phba->hbalock); } else work_ha_copy &= ~HA_LATT; } if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { /* * Turn off Slow Rings interrupts, LPFC_ELS_RING is * the only slow ring. */ status = (work_ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); status >>= (4*LPFC_ELS_RING); if (status & HA_RXMASK) { spin_lock(&phba->hbalock); control = readl(phba->HCregaddr); lpfc_debugfs_slow_ring_trc(phba, "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", control, status, (uint32_t)phba->sli.slistat.sli_intr); if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { lpfc_debugfs_slow_ring_trc(phba, "ISR Disable ring:" "pwork:x%x hawork:x%x wait:x%x", phba->work_ha, work_ha_copy, (uint32_t)((unsigned long) phba->work_wait)); control &= ~(HC_R0INT_ENA << LPFC_ELS_RING); writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } else { lpfc_debugfs_slow_ring_trc(phba, "ISR slow ring: pwork:" "x%x hawork:x%x wait:x%x", phba->work_ha, work_ha_copy, (uint32_t)((unsigned long) phba->work_wait)); } spin_unlock(&phba->hbalock); } } if (work_ha_copy & HA_ERATT) { phba->link_state = LPFC_HBA_ERROR; /* * There was a link/board error. Read the * status register to retrieve the error event * and process it. */ phba->sli.slistat.err_attn_event++; /* Save status info */ phba->work_hs = readl(phba->HSregaddr); phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); phba->work_status[1] = readl(phba->MBslimaddr + 0xac); /* Clear Chip error bit */ writel(HA_ERATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ phba->pport->stopped = 1; } if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { pmb = phba->sli.mbox_active; pmbox = &pmb->mb; mbox = &phba->slim2p->mbx; vport = pmb->vport; /* First check out the status word */ lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); if (pmbox->mbxOwner != OWN_HOST) { /* * Stray Mailbox Interrupt, mbxCommand * mbxStatus */ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, "(%d):0304 Stray Mailbox " "Interrupt mbxCommand x%x " "mbxStatus x%x\n", (vport ? vport->vpi : 0), pmbox->mbxCommand, pmbox->mbxStatus); } phba->last_completion_time = jiffies; del_timer_sync(&phba->sli.mbox_tmo); phba->sli.mbox_active = NULL; if (pmb->mbox_cmpl) { lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); } if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, "MBOX dflt rpi: : status:x%x rpi:x%x", (uint32_t)pmbox->mbxStatus, pmbox->un.varWords[0], 0); if ( !pmbox->mbxStatus) { mp = (struct lpfc_dmabuf *) (pmb->context1); ndlp = (struct lpfc_nodelist *) pmb->context2; /* Reg_LOGIN of dflt RPI was successful. * new lets get rid of the RPI using the * same mbox buffer. */ lpfc_unreg_login(phba, vport->vpi, pmbox->un.varWords[0], pmb); pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; pmb->context1 = mp; pmb->context2 = ndlp; pmb->vport = vport; spin_lock(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock(&phba->hbalock); goto send_current_mbox; } } spin_lock(&phba->pport->work_port_lock); phba->pport->work_port_events &= ~WORKER_MBOX_TMO; spin_unlock(&phba->pport->work_port_lock); lpfc_mbox_cmpl_put(phba, pmb); } if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active == NULL)) { send_next_mbox: spin_lock(&phba->hbalock); phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; pmb = lpfc_mbox_get(phba); spin_unlock(&phba->hbalock); send_current_mbox: /* Process next mailbox command if there is one */ if (pmb != NULL) { rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { pmb->mb.mbxStatus = MBX_NOT_FINISHED; lpfc_mbox_cmpl_put(phba, pmb); goto send_next_mbox; } } else { /* Turn on IOCB processing */ for (i = 0; i < phba->sli.num_rings; i++) lpfc_sli_turn_on_ring(phba, i); } } spin_lock(&phba->hbalock); phba->work_ha |= work_ha_copy; if (phba->work_wait) lpfc_worker_wake_up(phba); spin_unlock(&phba->hbalock); } ha_copy &= ~(phba->work_ha_mask); /* * Process all events on FCP ring. Take the optimized path for * FCP IO. Any other IO is slow path and is handled by * the worker thread. */ status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); status >>= (4*LPFC_FCP_RING); if (status & HA_RXMASK) lpfc_sli_handle_fast_ring_event(phba, &phba->sli.ring[LPFC_FCP_RING], status); if (phba->cfg_multi_ring_support == 2) { /* * Process all events on extra ring. Take the optimized path * for extra ring IO. Any other IO is slow path and is handled * by the worker thread. */ status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); status >>= (4*LPFC_EXTRA_RING); if (status & HA_RXMASK) { lpfc_sli_handle_fast_ring_event(phba, &phba->sli.ring[LPFC_EXTRA_RING], status); } } return IRQ_HANDLED; } /* lpfc_intr_handler */