/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2012 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 #include #include #include #include #include #include #include #include #include "lpfc_hw4.h" #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_sli4.h" #include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_vport.h" #include "lpfc_version.h" char *_dump_buf_data; unsigned long _dump_buf_data_order; char *_dump_buf_dif; unsigned long _dump_buf_dif_order; spinlock_t _dump_buf_lock; static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); static int lpfc_post_rcv_buf(struct lpfc_hba *); static int lpfc_sli4_queue_verify(struct lpfc_hba *); static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); static int lpfc_setup_endian_order(struct lpfc_hba *); static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); static void lpfc_free_els_sgl_list(struct lpfc_hba *); static void lpfc_init_sgl_list(struct lpfc_hba *); static int lpfc_init_active_sgl_array(struct lpfc_hba *); static void lpfc_free_active_sgl(struct lpfc_hba *); static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); static struct scsi_transport_template *lpfc_transport_template = NULL; static struct scsi_transport_template *lpfc_vport_transport_template = NULL; static DEFINE_IDR(lpfc_hba_index); /** * lpfc_config_port_prep - Perform lpfc initialization prior to config port * @phba: pointer to lpfc hba data structure. * * This routine will do LPFC initialization prior to issuing the CONFIG_PORT * mailbox command. It retrieves the revision information from the HBA and * collects the Vital Product Data (VPD) about the HBA for preparing the * configuration of the HBA. * * Return codes: * 0 - success. * -ERESTART - requests the SLI layer to reset the HBA and try again. * Any other value - indicates an error. **/ int lpfc_config_port_prep(struct lpfc_hba *phba) { lpfc_vpd_t *vp = &phba->vpd; int i = 0, rc; LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; char *lpfc_vpd_data = NULL; uint16_t offset = 0; static char licensed[56] = "key unlock for use with gnu public licensed code only\0"; static int init_key = 1; pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } mb = &pmb->u.mb; phba->link_state = LPFC_INIT_MBX_CMDS; if (lpfc_is_LC_HBA(phba->pcidev->device)) { if (init_key) { uint32_t *ptext = (uint32_t *) licensed; for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) *ptext = cpu_to_be32(*ptext); init_key = 0; } lpfc_read_nv(phba, pmb); memset((char*)mb->un.varRDnvp.rsvd3, 0, sizeof (mb->un.varRDnvp.rsvd3)); memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, sizeof (licensed)); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0324 Config Port initialization " "error, mbxCmd x%x READ_NVPARM, " "mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); mempool_free(pmb, phba->mbox_mem_pool); return -ERESTART; } memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, sizeof(phba->wwnn)); memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, sizeof(phba->wwpn)); } phba->sli3_options = 0x0; /* Setup and issue mailbox READ REV command */ lpfc_read_rev(phba, pmb); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0439 Adapter failed to init, mbxCmd x%x " "READ_REV, mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); mempool_free( pmb, phba->mbox_mem_pool); return -ERESTART; } /* * The value of rr must be 1 since the driver set the cv field to 1. * This setting requires the FW to set all revision fields. */ if (mb->un.varRdRev.rr == 0) { vp->rev.rBit = 0; lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0440 Adapter failed to init, READ_REV has " "missing revision information.\n"); mempool_free(pmb, phba->mbox_mem_pool); return -ERESTART; } if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { mempool_free(pmb, phba->mbox_mem_pool); return -EINVAL; } /* Save information as VPD data */ vp->rev.rBit = 1; memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); vp->rev.biuRev = mb->un.varRdRev.biuRev; vp->rev.smRev = mb->un.varRdRev.smRev; vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; vp->rev.endecRev = mb->un.varRdRev.endecRev; vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; vp->rev.fcphLow = mb->un.varRdRev.fcphLow; vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; vp->rev.postKernRev = mb->un.varRdRev.postKernRev; vp->rev.opFwRev = mb->un.varRdRev.opFwRev; /* If the sli feature level is less then 9, we must * tear down all RPIs and VPIs on link down if NPIV * is enabled. */ if (vp->rev.feaLevelHigh < 9) phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; if (lpfc_is_LC_HBA(phba->pcidev->device)) memcpy(phba->RandomData, (char *)&mb->un.varWords[24], sizeof (phba->RandomData)); /* Get adapter VPD information */ lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); if (!lpfc_vpd_data) goto out_free_mbox; do { lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "0441 VPD not present on adapter, " "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); mb->un.varDmp.word_cnt = 0; } /* dump mem may return a zero when finished or we got a * mailbox error, either way we are done. */ if (mb->un.varDmp.word_cnt == 0) break; if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, lpfc_vpd_data + offset, mb->un.varDmp.word_cnt); offset += mb->un.varDmp.word_cnt; } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); lpfc_parse_vpd(phba, lpfc_vpd_data, offset); kfree(lpfc_vpd_data); out_free_mbox: mempool_free(pmb, phba->mbox_mem_pool); return 0; } /** * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd * @phba: pointer to lpfc hba data structure. * @pmboxq: pointer to the driver internal queue element for mailbox command. * * This is the completion handler for driver's configuring asynchronous event * mailbox command to the device. If the mailbox command returns successfully, * it will set internal async event support flag to 1; otherwise, it will * set internal async event support flag to 0. **/ static void lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) { if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) phba->temp_sensor_support = 1; else phba->temp_sensor_support = 0; mempool_free(pmboxq, phba->mbox_mem_pool); return; } /** * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler * @phba: pointer to lpfc hba data structure. * @pmboxq: pointer to the driver internal queue element for mailbox command. * * This is the completion handler for dump mailbox command for getting * wake up parameters. When this command complete, the response contain * Option rom version of the HBA. This function translate the version number * into a human readable string and store it in OptionROMVersion. **/ static void lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) { struct prog_id *prg; uint32_t prog_id_word; char dist = ' '; /* character array used for decoding dist type. */ char dist_char[] = "nabx"; if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); return; } prg = (struct prog_id *) &prog_id_word; /* word 7 contain option rom version */ prog_id_word = pmboxq->u.mb.un.varWords[7]; /* Decode the Option rom version word to a readable string */ if (prg->dist < 4) dist = dist_char[prg->dist]; if ((prg->dist == 3) && (prg->num == 0)) sprintf(phba->OptionROMVersion, "%d.%d%d", prg->ver, prg->rev, prg->lev); else sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", prg->ver, prg->rev, prg->lev, dist, prg->num); mempool_free(pmboxq, phba->mbox_mem_pool); return; } /** * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, * cfg_soft_wwnn, cfg_soft_wwpn * @vport: pointer to lpfc vport data structure. * * * Return codes * None. **/ void lpfc_update_vport_wwn(struct lpfc_vport *vport) { /* If the soft name exists then update it using the service params */ if (vport->phba->cfg_soft_wwnn) u64_to_wwn(vport->phba->cfg_soft_wwnn, vport->fc_sparam.nodeName.u.wwn); if (vport->phba->cfg_soft_wwpn) u64_to_wwn(vport->phba->cfg_soft_wwpn, vport->fc_sparam.portName.u.wwn); /* * If the name is empty or there exists a soft name * then copy the service params name, otherwise use the fc name */ if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, sizeof(struct lpfc_name)); else memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) memcpy(&vport->fc_portname, &vport->fc_sparam.portName, sizeof(struct lpfc_name)); else memcpy(&vport->fc_sparam.portName, &vport->fc_portname, sizeof(struct lpfc_name)); } /** * lpfc_config_port_post - Perform lpfc initialization after config port * @phba: pointer to lpfc hba data structure. * * This routine will do LPFC initialization after the CONFIG_PORT mailbox * command call. It performs all internal resource and state setups on the * port: post IOCB buffers, enable appropriate host interrupt attentions, * ELS ring timers, etc. * * Return codes * 0 - success. * Any other value - error. **/ int lpfc_config_port_post(struct lpfc_hba *phba) { struct lpfc_vport *vport = phba->pport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; struct lpfc_dmabuf *mp; struct lpfc_sli *psli = &phba->sli; uint32_t status, timeout; int i, j; int rc; spin_lock_irq(&phba->hbalock); /* * If the Config port completed correctly the HBA is not * over heated any more. */ if (phba->over_temp_state == HBA_OVER_TEMP) phba->over_temp_state = HBA_NORMAL_TEMP; spin_unlock_irq(&phba->hbalock); pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } mb = &pmb->u.mb; /* Get login parameters for NID. */ rc = lpfc_read_sparam(phba, pmb, 0); if (rc) { mempool_free(pmb, phba->mbox_mem_pool); return -ENOMEM; } pmb->vport = vport; if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0448 Adapter failed init, mbxCmd x%x " "READ_SPARM mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); phba->link_state = LPFC_HBA_ERROR; mp = (struct lpfc_dmabuf *) pmb->context1; mempool_free(pmb, phba->mbox_mem_pool); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); return -EIO; } mp = (struct lpfc_dmabuf *) pmb->context1; memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); pmb->context1 = NULL; lpfc_update_vport_wwn(vport); /* Update the fc_host data structures with new wwn. */ fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); fc_host_max_npiv_vports(shost) = phba->max_vpi; /* If no serial number in VPD data, use low 6 bytes of WWNN */ /* This should be consolidated into parse_vpd ? - mr */ if (phba->SerialNumber[0] == 0) { uint8_t *outptr; outptr = &vport->fc_nodename.u.s.IEEE[0]; for (i = 0; i < 12; i++) { status = *outptr++; j = ((status & 0xf0) >> 4); if (j <= 9) phba->SerialNumber[i] = (char)((uint8_t) 0x30 + (uint8_t) j); else phba->SerialNumber[i] = (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); i++; j = (status & 0xf); if (j <= 9) phba->SerialNumber[i] = (char)((uint8_t) 0x30 + (uint8_t) j); else phba->SerialNumber[i] = (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); } } lpfc_read_config(phba, pmb); pmb->vport = vport; if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0453 Adapter failed to init, mbxCmd x%x " "READ_CONFIG, mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); phba->link_state = LPFC_HBA_ERROR; mempool_free( pmb, phba->mbox_mem_pool); return -EIO; } /* Check if the port is disabled */ lpfc_sli_read_link_ste(phba); /* Reset the DFT_HBA_Q_DEPTH to the max xri */ if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) phba->cfg_hba_queue_depth = (mb->un.varRdConfig.max_xri + 1) - lpfc_sli4_get_els_iocb_cnt(phba); phba->lmt = mb->un.varRdConfig.lmt; /* Get the default values for Model Name and Description */ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); phba->link_state = LPFC_LINK_DOWN; /* Only process IOCBs on ELS ring till hba_state is READY */ if (psli->ring[psli->extra_ring].cmdringaddr) psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; if (psli->ring[psli->fcp_ring].cmdringaddr) psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; if (psli->ring[psli->next_ring].cmdringaddr) psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; /* Post receive buffers for desired rings */ if (phba->sli_rev != 3) lpfc_post_rcv_buf(phba); /* * Configure HBA MSI-X attention conditions to messages if MSI-X mode */ if (phba->intr_type == MSIX) { rc = lpfc_config_msi(phba, pmb); if (rc) { mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0352 Config MSI mailbox command " "failed, mbxCmd x%x, mbxStatus x%x\n", pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } } spin_lock_irq(&phba->hbalock); /* Initialize ERATT handling flag */ phba->hba_flag &= ~HBA_ERATT_HANDLED; /* Enable appropriate host interrupts */ if (lpfc_readl(phba->HCregaddr, &status)) { spin_unlock_irq(&phba->hbalock); return -EIO; } status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; if (psli->num_rings > 0) status |= HC_R0INT_ENA; if (psli->num_rings > 1) status |= HC_R1INT_ENA; if (psli->num_rings > 2) status |= HC_R2INT_ENA; if (psli->num_rings > 3) status |= HC_R3INT_ENA; if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && (phba->cfg_poll & DISABLE_FCP_RING_INT)) status &= ~(HC_R0INT_ENA); writel(status, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ spin_unlock_irq(&phba->hbalock); /* Set up ring-0 (ELS) timer */ timeout = phba->fc_ratov * 2; mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); /* Set up heart beat (HB) timer */ mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); phba->hb_outstanding = 0; phba->last_completion_time = jiffies; /* Set up error attention (ERATT) polling timer */ mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); if (phba->hba_flag & LINK_DISABLED) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2598 Adapter Link is disabled.\n"); lpfc_down_link(phba, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2599 Adapter failed to issue DOWN_LINK" " mbox command rc 0x%x\n", rc); mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { mempool_free(pmb, phba->mbox_mem_pool); rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); if (rc) return rc; } /* MBOX buffer will be freed in mbox compl */ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } lpfc_config_async(phba, pmb, LPFC_ELS_RING); pmb->mbox_cmpl = lpfc_config_async_cmpl; pmb->vport = phba->pport; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0456 Adapter failed to issue " "ASYNCEVT_ENABLE mbox status x%x\n", rc); mempool_free(pmb, phba->mbox_mem_pool); } /* Get Option rom version */ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } lpfc_dump_wakeup_param(phba, pmb); pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; pmb->vport = phba->pport; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " "to get Option ROM version status x%x\n", rc); mempool_free(pmb, phba->mbox_mem_pool); } return 0; } /** * lpfc_hba_init_link - Initialize the FC link * @phba: pointer to lpfc hba data structure. * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT * * This routine will issue the INIT_LINK mailbox command call. * It is available to other drivers through the lpfc_hba data * structure for use as a delayed link up mechanism with the * module parameter lpfc_suppress_link_up. * * Return code * 0 - success * Any other value - error **/ int lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) { return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); } /** * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology * @phba: pointer to lpfc hba data structure. * @fc_topology: desired fc topology. * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT * * This routine will issue the INIT_LINK mailbox command call. * It is available to other drivers through the lpfc_hba data * structure for use as a delayed link up mechanism with the * module parameter lpfc_suppress_link_up. * * Return code * 0 - success * Any other value - error **/ int lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, uint32_t flag) { struct lpfc_vport *vport = phba->pport; LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; int rc; pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } mb = &pmb->u.mb; pmb->vport = vport; if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) { /* Reset link speed to auto */ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, "1302 Invalid speed for this board:%d " "Reset link speed to auto.\n", phba->cfg_link_speed); phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; } lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; if (phba->sli_rev < LPFC_SLI_REV4) lpfc_set_loopback_flag(phba); rc = lpfc_sli_issue_mbox(phba, pmb, flag); if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0498 Adapter failed to init, mbxCmd x%x " "INIT_LINK, mbxStatus x%x\n", mb->mbxCommand, mb->mbxStatus); if (phba->sli_rev <= LPFC_SLI_REV3) { /* Clear all interrupt enable conditions */ writel(0, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ /* Clear all pending interrupts */ writel(0xffffffff, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ } phba->link_state = LPFC_HBA_ERROR; if (rc != MBX_BUSY || flag == MBX_POLL) mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; if (flag == MBX_POLL) mempool_free(pmb, phba->mbox_mem_pool); return 0; } /** * lpfc_hba_down_link - this routine downs the FC link * @phba: pointer to lpfc hba data structure. * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT * * This routine will issue the DOWN_LINK mailbox command call. * It is available to other drivers through the lpfc_hba data * structure for use to stop the link. * * Return code * 0 - success * Any other value - error **/ int lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) { LPFC_MBOXQ_t *pmb; int rc; pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { phba->link_state = LPFC_HBA_ERROR; return -ENOMEM; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0491 Adapter Link is disabled.\n"); lpfc_down_link(phba, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, pmb, flag); if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2522 Adapter failed to issue DOWN_LINK" " mbox command rc 0x%x\n", rc); mempool_free(pmb, phba->mbox_mem_pool); return -EIO; } if (flag == MBX_POLL) mempool_free(pmb, phba->mbox_mem_pool); return 0; } /** * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset * @phba: pointer to lpfc HBA data structure. * * This routine will do LPFC uninitialization before the HBA is reset when * bringing down the SLI Layer. * * Return codes * 0 - success. * Any other value - error. **/ int lpfc_hba_down_prep(struct lpfc_hba *phba) { struct lpfc_vport **vports; int i; if (phba->sli_rev <= LPFC_SLI_REV3) { /* Disable interrupts */ writel(0, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } if (phba->pport->load_flag & FC_UNLOADING) lpfc_cleanup_discovery_resources(phba->pport); else { vports = lpfc_create_vport_work_array(phba); if (vports != NULL) for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) lpfc_cleanup_discovery_resources(vports[i]); lpfc_destroy_vport_work_array(phba, vports); } return 0; } /** * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset * @phba: pointer to lpfc HBA data structure. * * This routine will do uninitialization after the HBA is reset when bring * down the SLI Layer. * * Return codes * 0 - success. * Any other value - error. **/ static int lpfc_hba_down_post_s3(struct lpfc_hba *phba) { struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; struct lpfc_dmabuf *mp, *next_mp; LIST_HEAD(completions); int i; if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) lpfc_sli_hbqbuf_free_all(phba); else { /* Cleanup preposted buffers on the ELS ring */ pring = &psli->ring[LPFC_ELS_RING]; list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { list_del(&mp->list); pring->postbufq_cnt--; lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } } spin_lock_irq(&phba->hbalock); for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; /* At this point in time the HBA is either reset or DOA. Either * way, nothing should be on txcmplq as it will NEVER complete. */ list_splice_init(&pring->txcmplq, &completions); pring->txcmplq_cnt = 0; spin_unlock_irq(&phba->hbalock); /* Cancel all the IOCBs from the completions list */ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); lpfc_sli_abort_iocb_ring(phba, pring); spin_lock_irq(&phba->hbalock); } spin_unlock_irq(&phba->hbalock); return 0; } /** * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset * @phba: pointer to lpfc HBA data structure. * * This routine will do uninitialization after the HBA is reset when bring * down the SLI Layer. * * Return codes * 0 - success. * Any other value - error. **/ static int lpfc_hba_down_post_s4(struct lpfc_hba *phba) { struct lpfc_scsi_buf *psb, *psb_next; LIST_HEAD(aborts); int ret; unsigned long iflag = 0; struct lpfc_sglq *sglq_entry = NULL; ret = lpfc_hba_down_post_s3(phba); if (ret) return ret; /* At this point in time the HBA is either reset or DOA. Either * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be * on the lpfc_sgl_list so that it can either be freed if the * driver is unloading or reposted if the driver is restarting * the port. */ spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ /* scsl_buf_list */ /* abts_sgl_list_lock required because worker thread uses this * list. */ spin_lock(&phba->sli4_hba.abts_sgl_list_lock); list_for_each_entry(sglq_entry, &phba->sli4_hba.lpfc_abts_els_sgl_list, list) sglq_entry->state = SGL_FREED; list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); /* abts_scsi_buf_list_lock required because worker thread uses this * list. */ spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, &aborts); spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); spin_unlock_irq(&phba->hbalock); list_for_each_entry_safe(psb, psb_next, &aborts, list) { psb->pCmd = NULL; psb->status = IOSTAT_SUCCESS; } spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); list_splice(&aborts, &phba->lpfc_scsi_buf_list); spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); return 0; } /** * lpfc_hba_down_post - Wrapper func for hba down post routine * @phba: pointer to lpfc HBA data structure. * * This routine wraps the actual SLI3 or SLI4 routine for performing * uninitialization after the HBA is reset when bring down the SLI Layer. * * Return codes * 0 - success. * Any other value - error. **/ int lpfc_hba_down_post(struct lpfc_hba *phba) { return (*phba->lpfc_hba_down_post)(phba); } /** * lpfc_hb_timeout - The HBA-timer timeout handler * @ptr: unsigned long holds the pointer to lpfc hba data structure. * * This is the HBA-timer timeout handler registered to the lpfc driver. When * this timer fires, a HBA timeout event shall be posted to the lpfc driver * work-port-events bitmap and the worker thread is notified. This timeout * event will be used by the worker thread to invoke the actual timeout * handler routine, lpfc_hb_timeout_handler. Any periodical operations will * be performed in the timeout handler and the HBA timeout event bit shall * be cleared by the worker thread after it has taken the event bitmap out. **/ static void lpfc_hb_timeout(unsigned long ptr) { struct lpfc_hba *phba; uint32_t tmo_posted; unsigned long iflag; phba = (struct lpfc_hba *)ptr; /* Check for heart beat timeout conditions */ spin_lock_irqsave(&phba->pport->work_port_lock, iflag); tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; if (!tmo_posted) phba->pport->work_port_events |= WORKER_HB_TMO; spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); /* Tell the worker thread there is work to do */ if (!tmo_posted) lpfc_worker_wake_up(phba); return; } /** * lpfc_rrq_timeout - The RRQ-timer timeout handler * @ptr: unsigned long holds the pointer to lpfc hba data structure. * * This is the RRQ-timer timeout handler registered to the lpfc driver. When * this timer fires, a RRQ timeout event shall be posted to the lpfc driver * work-port-events bitmap and the worker thread is notified. This timeout * event will be used by the worker thread to invoke the actual timeout * handler routine, lpfc_rrq_handler. Any periodical operations will * be performed in the timeout handler and the RRQ timeout event bit shall * be cleared by the worker thread after it has taken the event bitmap out. **/ static void lpfc_rrq_timeout(unsigned long ptr) { struct lpfc_hba *phba; unsigned long iflag; phba = (struct lpfc_hba *)ptr; spin_lock_irqsave(&phba->pport->work_port_lock, iflag); phba->hba_flag |= HBA_RRQ_ACTIVE; spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); lpfc_worker_wake_up(phba); } /** * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function * @phba: pointer to lpfc hba data structure. * @pmboxq: pointer to the driver internal queue element for mailbox command. * * This is the callback function to the lpfc heart-beat mailbox command. * If configured, the lpfc driver issues the heart-beat mailbox command to * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the * heart-beat mailbox command is issued, the driver shall set up heart-beat * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks * heart-beat outstanding state. Once the mailbox command comes back and * no error conditions detected, the heart-beat mailbox command timer is * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding * state is cleared for the next heart-beat. If the timer expired with the * heart-beat outstanding state set, the driver will put the HBA offline. **/ static void lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) { unsigned long drvr_flag; spin_lock_irqsave(&phba->hbalock, drvr_flag); phba->hb_outstanding = 0; spin_unlock_irqrestore(&phba->hbalock, drvr_flag); /* Check and reset heart-beat timer is necessary */ mempool_free(pmboxq, phba->mbox_mem_pool); if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && !(phba->link_state == LPFC_HBA_ERROR) && !(phba->pport->load_flag & FC_UNLOADING)) mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); return; } /** * lpfc_hb_timeout_handler - The HBA-timer timeout handler * @phba: pointer to lpfc hba data structure. * * This is the actual HBA-timer timeout handler to be invoked by the worker * thread whenever the HBA timer fired and HBA-timeout event posted. This * handler performs any periodic operations needed for the device. If such * periodic event has already been attended to either in the interrupt handler * or by processing slow-ring or fast-ring events within the HBA-timer * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets * the timer for the next timeout period. If lpfc heart-beat mailbox command * is configured and there is no heart-beat mailbox command outstanding, a * heart-beat mailbox is issued and timer set properly. Otherwise, if there * has been a heart-beat mailbox command outstanding, the HBA shall be put * to offline. **/ void lpfc_hb_timeout_handler(struct lpfc_hba *phba) { struct lpfc_vport **vports; LPFC_MBOXQ_t *pmboxq; struct lpfc_dmabuf *buf_ptr; int retval, i; struct lpfc_sli *psli = &phba->sli; LIST_HEAD(completions); vports = lpfc_create_vport_work_array(phba); if (vports != NULL) for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) lpfc_rcv_seq_check_edtov(vports[i]); lpfc_destroy_vport_work_array(phba, vports); if ((phba->link_state == LPFC_HBA_ERROR) || (phba->pport->load_flag & FC_UNLOADING) || (phba->pport->fc_flag & FC_OFFLINE_MODE)) return; spin_lock_irq(&phba->pport->work_port_lock); if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, jiffies)) { spin_unlock_irq(&phba->pport->work_port_lock); if (!phba->hb_outstanding) mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); else mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); return; } spin_unlock_irq(&phba->pport->work_port_lock); if (phba->elsbuf_cnt && (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { spin_lock_irq(&phba->hbalock); list_splice_init(&phba->elsbuf, &completions); phba->elsbuf_cnt = 0; phba->elsbuf_prev_cnt = 0; spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { list_remove_head(&completions, buf_ptr, struct lpfc_dmabuf, list); lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); kfree(buf_ptr); } } phba->elsbuf_prev_cnt = phba->elsbuf_cnt; /* If there is no heart beat outstanding, issue a heartbeat command */ if (phba->cfg_enable_hba_heartbeat) { if (!phba->hb_outstanding) { if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && (list_empty(&psli->mboxq))) { pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmboxq) { mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); return; } lpfc_heart_beat(phba, pmboxq); pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; pmboxq->vport = phba->pport; retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); if (retval != MBX_BUSY && retval != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); return; } phba->skipped_hb = 0; phba->hb_outstanding = 1; } else if (time_before_eq(phba->last_completion_time, phba->skipped_hb)) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "2857 Last completion time not " " updated in %d ms\n", jiffies_to_msecs(jiffies - phba->last_completion_time)); } else phba->skipped_hb = jiffies; mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); return; } else { /* * If heart beat timeout called with hb_outstanding set * we need to give the hb mailbox cmd a chance to * complete or TMO. */ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, "0459 Adapter heartbeat still out" "standing:last compl time was %d ms.\n", jiffies_to_msecs(jiffies - phba->last_completion_time)); mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); } } } /** * lpfc_offline_eratt - Bring lpfc offline on hardware error attention * @phba: pointer to lpfc hba data structure. * * This routine is called to bring the HBA offline when HBA hardware error * other than Port Error 6 has been detected. **/ static void lpfc_offline_eratt(struct lpfc_hba *phba) { struct lpfc_sli *psli = &phba->sli; spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_SLI_ACTIVE; spin_unlock_irq(&phba->hbalock); lpfc_offline_prep(phba); lpfc_offline(phba); lpfc_reset_barrier(phba); spin_lock_irq(&phba->hbalock); lpfc_sli_brdreset(phba); spin_unlock_irq(&phba->hbalock); lpfc_hba_down_post(phba); lpfc_sli_brdready(phba, HS_MBRDY); lpfc_unblock_mgmt_io(phba); phba->link_state = LPFC_HBA_ERROR; return; } /** * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention * @phba: pointer to lpfc hba data structure. * * This routine is called to bring a SLI4 HBA offline when HBA hardware error * other than Port Error 6 has been detected. **/ static void lpfc_sli4_offline_eratt(struct lpfc_hba *phba) { lpfc_offline_prep(phba); lpfc_offline(phba); lpfc_sli4_brdreset(phba); lpfc_hba_down_post(phba); lpfc_sli4_post_status_check(phba); lpfc_unblock_mgmt_io(phba); phba->link_state = LPFC_HBA_ERROR; } /** * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler * @phba: pointer to lpfc hba data structure. * * This routine is invoked to handle the deferred HBA hardware error * conditions. This type of error is indicated by HBA by setting ER1 * and another ER bit in the host status register. The driver will * wait until the ER1 bit clears before handling the error condition. **/ static void lpfc_handle_deferred_eratt(struct lpfc_hba *phba) { uint32_t old_host_status = phba->work_hs; struct lpfc_sli_ring *pring; struct lpfc_sli *psli = &phba->sli; /* If the pci channel is offline, ignore possible errors, * since we cannot communicate with the pci card anyway. */ if (pci_channel_offline(phba->pcidev)) { spin_lock_irq(&phba->hbalock); phba->hba_flag &= ~DEFER_ERATT; spin_unlock_irq(&phba->hbalock); return; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0479 Deferred Adapter Hardware Error " "Data: x%x x%x x%x\n", phba->work_hs, phba->work_status[0], phba->work_status[1]); spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_SLI_ACTIVE; spin_unlock_irq(&phba->hbalock); /* * Firmware stops when it triggred erratt. That could cause the I/Os * dropped by the firmware. Error iocb (I/O) on txcmplq and let the * SCSI layer retry it after re-establishing link. */ pring = &psli->ring[psli->fcp_ring]; lpfc_sli_abort_iocb_ring(phba, pring); /* * There was a firmware error. Take the hba offline and then * attempt to restart it. */ lpfc_offline_prep(phba); lpfc_offline(phba); /* Wait for the ER1 bit to clear.*/ while (phba->work_hs & HS_FFER1) { msleep(100); if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { phba->work_hs = UNPLUG_ERR ; break; } /* If driver is unloading let the worker thread continue */ if (phba->pport->load_flag & FC_UNLOADING) { phba->work_hs = 0; break; } } /* * This is to ptrotect against a race condition in which * first write to the host attention register clear the * host status register. */ if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) phba->work_hs = old_host_status & ~HS_FFER1; spin_lock_irq(&phba->hbalock); phba->hba_flag &= ~DEFER_ERATT; spin_unlock_irq(&phba->hbalock); phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); phba->work_status[1] = readl(phba->MBslimaddr + 0xac); } static void lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) { struct lpfc_board_event_header board_event; struct Scsi_Host *shost; board_event.event_type = FC_REG_BOARD_EVENT; board_event.subcategory = LPFC_EVENT_PORTINTERR; shost = lpfc_shost_from_vport(phba->pport); fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(board_event), (char *) &board_event, LPFC_NL_VENDOR_ID); } /** * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler * @phba: pointer to lpfc hba data structure. * * This routine is invoked to handle the following HBA hardware error * conditions: * 1 - HBA error attention interrupt * 2 - DMA ring index out of range * 3 - Mailbox command came back as unknown **/ static void lpfc_handle_eratt_s3(struct lpfc_hba *phba) { struct lpfc_vport *vport = phba->pport; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; uint32_t event_data; unsigned long temperature; struct temp_event temp_event_data; struct Scsi_Host *shost; /* If the pci channel is offline, ignore possible errors, * since we cannot communicate with the pci card anyway. */ if (pci_channel_offline(phba->pcidev)) { spin_lock_irq(&phba->hbalock); phba->hba_flag &= ~DEFER_ERATT; spin_unlock_irq(&phba->hbalock); return; } /* If resets are disabled then leave the HBA alone and return */ if (!phba->cfg_enable_hba_reset) return; /* Send an internal error event to mgmt application */ lpfc_board_errevt_to_mgmt(phba); if (phba->hba_flag & DEFER_ERATT) lpfc_handle_deferred_eratt(phba); if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { if (phba->work_hs & HS_FFER6) /* Re-establishing Link */ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, "1301 Re-establishing Link " "Data: x%x x%x x%x\n", phba->work_hs, phba->work_status[0], phba->work_status[1]); if (phba->work_hs & HS_FFER8) /* Device Zeroization */ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, "2861 Host Authentication device " "zeroization Data:x%x x%x x%x\n", phba->work_hs, phba->work_status[0], phba->work_status[1]); spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_SLI_ACTIVE; spin_unlock_irq(&phba->hbalock); /* * Firmware stops when it triggled erratt with HS_FFER6. * That could cause the I/Os dropped by the firmware. * Error iocb (I/O) on txcmplq and let the SCSI layer * retry it after re-establishing link. */ pring = &psli->ring[psli->fcp_ring]; lpfc_sli_abort_iocb_ring(phba, pring); /* * There was a firmware error. Take the hba offline and then * attempt to restart it. */ lpfc_offline_prep(phba); lpfc_offline(phba); lpfc_sli_brdrestart(phba); if (lpfc_online(phba) == 0) { /* Initialize the HBA */ lpfc_unblock_mgmt_io(phba); return; } lpfc_unblock_mgmt_io(phba); } else if (phba->work_hs & HS_CRIT_TEMP) { temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; temp_event_data.event_code = LPFC_CRIT_TEMP; temp_event_data.data = (uint32_t)temperature; lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0406 Adapter maximum temperature exceeded " "(%ld), taking this port offline " "Data: x%x x%x x%x\n", temperature, phba->work_hs, phba->work_status[0], phba->work_status[1]); shost = lpfc_shost_from_vport(phba->pport); fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(temp_event_data), (char *) &temp_event_data, SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); spin_lock_irq(&phba->hbalock); phba->over_temp_state = HBA_OVER_TEMP; spin_unlock_irq(&phba->hbalock); lpfc_offline_eratt(phba); } else { /* The if clause above forces this code path when the status * failure is a value other than FFER6. Do not call the offline * twice. This is the adapter hardware error path. */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0457 Adapter Hardware Error " "Data: x%x x%x x%x\n", phba->work_hs, phba->work_status[0], phba->work_status[1]); event_data = FC_REG_DUMP_EVENT; shost = lpfc_shost_from_vport(vport); fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(event_data), (char *) &event_data, SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); lpfc_offline_eratt(phba); } return; } /** * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler * @phba: pointer to lpfc hba data structure. * * This routine is invoked to handle the SLI4 HBA hardware error attention * conditions. **/ static void lpfc_handle_eratt_s4(struct lpfc_hba *phba) { struct lpfc_vport *vport = phba->pport; uint32_t event_data; struct Scsi_Host *shost; uint32_t if_type; struct lpfc_register portstat_reg = {0}; uint32_t reg_err1, reg_err2; uint32_t uerrlo_reg, uemasklo_reg; uint32_t pci_rd_rc1, pci_rd_rc2; int rc; /* If the pci channel is offline, ignore possible errors, since * we cannot communicate with the pci card anyway. */ if (pci_channel_offline(phba->pcidev)) return; /* If resets are disabled then leave the HBA alone and return */ if (!phba->cfg_enable_hba_reset) return; if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); switch (if_type) { case LPFC_SLI_INTF_IF_TYPE_0: pci_rd_rc1 = lpfc_readl( phba->sli4_hba.u.if_type0.UERRLOregaddr, &uerrlo_reg); pci_rd_rc2 = lpfc_readl( phba->sli4_hba.u.if_type0.UEMASKLOregaddr, &uemasklo_reg); /* consider PCI bus read error as pci_channel_offline */ if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) return; lpfc_sli4_offline_eratt(phba); break; case LPFC_SLI_INTF_IF_TYPE_2: pci_rd_rc1 = lpfc_readl( phba->sli4_hba.u.if_type2.STATUSregaddr, &portstat_reg.word0); /* consider PCI bus read error as pci_channel_offline */ if (pci_rd_rc1 == -EIO) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3151 PCI bus read access failure: x%x\n", readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); return; } reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { /* TODO: Register for Overtemp async events. */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2889 Port Overtemperature event, " "taking port offline\n"); spin_lock_irq(&phba->hbalock); phba->over_temp_state = HBA_OVER_TEMP; spin_unlock_irq(&phba->hbalock); lpfc_sli4_offline_eratt(phba); break; } if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3143 Port Down: Firmware Restarted\n"); else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3144 Port Down: Debug Dump\n"); else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3145 Port Down: Provisioning\n"); /* * On error status condition, driver need to wait for port * ready before performing reset. */ rc = lpfc_sli4_pdev_status_reg_wait(phba); if (!rc) { /* need reset: attempt for port recovery */ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "2887 Reset Needed: Attempting Port " "Recovery...\n"); lpfc_offline_prep(phba); lpfc_offline(phba); lpfc_sli_brdrestart(phba); if (lpfc_online(phba) == 0) { lpfc_unblock_mgmt_io(phba); /* don't report event on forced debug dump */ if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) return; else break; } /* fall through for not able to recover */ } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3152 Unrecoverable error, bring the port " "offline\n"); lpfc_sli4_offline_eratt(phba); break; case LPFC_SLI_INTF_IF_TYPE_1: default: break; } lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, "3123 Report dump event to upper layer\n"); /* Send an internal error event to mgmt application */ lpfc_board_errevt_to_mgmt(phba); event_data = FC_REG_DUMP_EVENT; shost = lpfc_shost_from_vport(vport); fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(event_data), (char *) &event_data, SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); } /** * lpfc_handle_eratt - Wrapper func for handling hba error attention * @phba: pointer to lpfc HBA data structure. * * This routine wraps the actual SLI3 or SLI4 hba error attention handling * routine from the API jump table function pointer from the lpfc_hba struct. * * Return codes * 0 - success. * Any other value - error. **/ void lpfc_handle_eratt(struct lpfc_hba *phba) { (*phba->lpfc_handle_eratt)(phba); } /** * lpfc_handle_latt - The HBA link event handler * @phba: pointer to lpfc hba data structure. * * This routine is invoked from the worker thread to handle a HBA host * attention link event. **/ void lpfc_handle_latt(struct lpfc_hba *phba) { struct lpfc_vport *vport = phba->pport; struct lpfc_sli *psli = &phba->sli; LPFC_MBOXQ_t *pmb; volatile uint32_t control; struct lpfc_dmabuf *mp; int rc = 0; pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) { rc = 1; goto lpfc_handle_latt_err_exit; } mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); if (!mp) { rc = 2; goto lpfc_handle_latt_free_pmb; } mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); if (!mp->virt) { rc = 3; goto lpfc_handle_latt_free_mp; } /* Cleanup any outstanding ELS commands */ lpfc_els_flush_all_cmd(phba); psli->slistat.link_event++; lpfc_read_topology(phba, pmb, mp); pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; pmb->vport = vport; /* Block ELS IOCBs until we have processed this mbox command */ phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { rc = 4; goto lpfc_handle_latt_free_mbuf; } /* Clear Link Attention in HA REG */ spin_lock_irq(&phba->hbalock); writel(HA_LATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ spin_unlock_irq(&phba->hbalock); return; lpfc_handle_latt_free_mbuf: phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; lpfc_mbuf_free(phba, mp->virt, mp->phys); lpfc_handle_latt_free_mp: kfree(mp); lpfc_handle_latt_free_pmb: mempool_free(pmb, phba->mbox_mem_pool); lpfc_handle_latt_err_exit: /* Enable Link attention interrupts */ spin_lock_irq(&phba->hbalock); psli->sli_flag |= LPFC_PROCESS_LA; control = readl(phba->HCregaddr); control |= HC_LAINT_ENA; writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ /* Clear Link Attention in HA REG */ writel(HA_LATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ spin_unlock_irq(&phba->hbalock); lpfc_linkdown(phba); phba->link_state = LPFC_HBA_ERROR; lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); return; } /** * lpfc_parse_vpd - Parse VPD (Vital Product Data) * @phba: pointer to lpfc hba data structure. * @vpd: pointer to the vital product data. * @len: length of the vital product data in bytes. * * This routine parses the Vital Product Data (VPD). The VPD is treated as * an array of characters. In this routine, the ModelName, ProgramType, and * ModelDesc, etc. fields of the phba data structure will be populated. * * Return codes * 0 - pointer to the VPD passed in is NULL * 1 - success **/ int lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) { uint8_t lenlo, lenhi; int Length; int i, j; int finished = 0; int index = 0; if (!vpd) return 0; /* Vital Product */ lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "0455 Vital Product Data: x%x x%x x%x x%x\n", (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], (uint32_t) vpd[3]); while (!finished && (index < (len - 4))) { switch (vpd[index]) { case 0x82: case 0x91: index += 1; lenlo = vpd[index]; index += 1; lenhi = vpd[index]; index += 1; i = ((((unsigned short)lenhi) << 8) + lenlo); index += i; break; case 0x90: index += 1; lenlo = vpd[index]; index += 1; lenhi = vpd[index]; index += 1; Length = ((((unsigned short)lenhi) << 8) + lenlo); if (Length > len - index) Length = len - index; while (Length > 0) { /* Look for Serial Number */ if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { index += 2; i = vpd[index]; index += 1; j = 0; Length -= (3+i); while(i--) { phba->SerialNumber[j++] = vpd[index++]; if (j == 31) break; } phba->SerialNumber[j] = 0; continue; } else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { phba->vpd_flag |= VPD_MODEL_DESC; index += 2; i = vpd[index]; index += 1; j = 0; Length -= (3+i); while(i--) { phba->ModelDesc[j++] = vpd[index++]; if (j == 255) break; } phba->ModelDesc[j] = 0; continue; } else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { phba->vpd_flag |= VPD_MODEL_NAME; index += 2; i = vpd[index]; index += 1; j = 0; Length -= (3+i); while(i--) { phba->ModelName[j++] = vpd[index++]; if (j == 79) break; } phba->ModelName[j] = 0; continue; } else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { phba->vpd_flag |= VPD_PROGRAM_TYPE; index += 2; i = vpd[index]; index += 1; j = 0; Length -= (3+i); while(i--) { phba->ProgramType[j++] = vpd[index++]; if (j == 255) break; } phba->ProgramType[j] = 0; continue; } else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { phba->vpd_flag |= VPD_PORT; index += 2; i = vpd[index]; index += 1; j = 0; Length -= (3+i); while(i--) { if ((phba->sli_rev == LPFC_SLI_REV4) && (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET)) { j++; index++; } else phba->Port[j++] = vpd[index++]; if (j == 19) break; } if ((phba->sli_rev != LPFC_SLI_REV4) || (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_NON)) phba->Port[j] = 0; continue; } else { index += 2; i = vpd[index]; index += 1; index += i; Length -= (3 + i); } } finished = 0; break; case 0x78: finished = 1; break; default: index ++; break; } } return(1); } /** * lpfc_get_hba_model_desc - Retrieve HBA device model name and description * @phba: pointer to lpfc hba data structure. * @mdp: pointer to the data structure to hold the derived model name. * @descp: pointer to the data structure to hold the derived description. * * This routine retrieves HBA's description based on its registered PCI device * ID. The @descp passed into this function points to an array of 256 chars. It * shall be returned with the model name, maximum speed, and the host bus type. * The @mdp passed into this function points to an array of 80 chars. When the * function returns, the @mdp will be filled with the model name. **/ static void lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) { lpfc_vpd_t *vp; uint16_t dev_id = phba->pcidev->device; int max_speed; int GE = 0; int oneConnect = 0; /* default is not a oneConnect */ struct { char *name; char *bus; char *function; } m = {"", "", ""}; if (mdp && mdp[0] != '\0' && descp && descp[0] != '\0') return; if (phba->lmt & LMT_16Gb) max_speed = 16; else if (phba->lmt & LMT_10Gb) max_speed = 10; else if (phba->lmt & LMT_8Gb) max_speed = 8; else if (phba->lmt & LMT_4Gb) max_speed = 4; else if (phba->lmt & LMT_2Gb) max_speed = 2; else max_speed = 1; vp = &phba->vpd; switch (dev_id) { case PCI_DEVICE_ID_FIREFLY: m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SUPERFLY: if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) m = (typeof(m)){"LP7000", "PCI", "Fibre Channel Adapter"}; else m = (typeof(m)){"LP7000E", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_DRAGONFLY: m = (typeof(m)){"LP8000", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_CENTAUR: if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) m = (typeof(m)){"LP9002", "PCI", "Fibre Channel Adapter"}; else m = (typeof(m)){"LP9000", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_RFLY: m = (typeof(m)){"LP952", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_PEGASUS: m = (typeof(m)){"LP9802", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_THOR: m = (typeof(m)){"LP10000", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_VIPER: m = (typeof(m)){"LPX1000", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_PFLY: m = (typeof(m)){"LP982", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_TFLY: m = (typeof(m)){"LP1050", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_HELIOS: m = (typeof(m)){"LP11000", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_HELIOS_SCSP: m = (typeof(m)){"LP11000-SP", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_HELIOS_DCSP: m = (typeof(m)){"LP11002-SP", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_NEPTUNE: m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_NEPTUNE_SCSP: m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_NEPTUNE_DCSP: m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_BMID: m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_BSMB: m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_ZEPHYR: m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_ZEPHYR_SCSP: m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_ZEPHYR_DCSP: m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; GE = 1; break; case PCI_DEVICE_ID_ZMID: m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_ZSMB: m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LP101: m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LP10000S: m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LP11000S: m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LPE11000S: m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT: m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT_MID: m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT_SMB: m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT_DCSP: m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT_SCSP: m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_SAT_S: m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_HORNET: m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; GE = 1; break; case PCI_DEVICE_ID_PROTEUS_VF: m = (typeof(m)){"LPev12000", "PCIe IOV", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_PROTEUS_PF: m = (typeof(m)){"LPev12000", "PCIe IOV", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_PROTEUS_S: m = (typeof(m)){"LPemv12002-S", "PCIe IOV", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_TIGERSHARK: oneConnect = 1; m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; break; case PCI_DEVICE_ID_TOMCAT: oneConnect = 1; m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; break; case PCI_DEVICE_ID_FALCON: m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", "EmulexSecure Fibre"}; break; case PCI_DEVICE_ID_BALIUS: m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LANCER_FC: case PCI_DEVICE_ID_LANCER_FC_VF: m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; break; case PCI_DEVICE_ID_LANCER_FCOE: case PCI_DEVICE_ID_LANCER_FCOE_VF: oneConnect = 1; m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; break; default: m = (typeof(m)){"Unknown", "", ""}; break; } if (mdp && mdp[0] == '\0') snprintf(mdp, 79,"%s", m.name); /* * oneConnect hba requires special processing, they are all initiators * and we put the port number on the end */ if (descp && descp[0] == '\0') { if (oneConnect) snprintf(descp, 255, "Emulex OneConnect %s, %s Initiator, Port %s", m.name, m.function, phba->Port); else snprintf(descp, 255, "Emulex %s %d%s %s %s", m.name, max_speed, (GE) ? "GE" : "Gb", m.bus, m.function); } } /** * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring * @phba: pointer to lpfc hba data structure. * @pring: pointer to a IOCB ring. * @cnt: the number of IOCBs to be posted to the IOCB ring. * * This routine posts a given number of IOCBs with the associated DMA buffer * descriptors specified by the cnt argument to the given IOCB ring. * * Return codes * The number of IOCBs NOT able to be posted to the IOCB ring. **/ int lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) { IOCB_t *icmd; struct lpfc_iocbq *iocb; struct lpfc_dmabuf *mp1, *mp2; cnt += pring->missbufcnt; /* While there are buffers to post */ while (cnt > 0) { /* Allocate buffer for command iocb */ iocb = lpfc_sli_get_iocbq(phba); if (iocb == NULL) { pring->missbufcnt = cnt; return cnt; } icmd = &iocb->iocb; /* 2 buffers can be posted per command */ /* Allocate buffer to post */ mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); if (mp1) mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); if (!mp1 || !mp1->virt) { kfree(mp1); lpfc_sli_release_iocbq(phba, iocb); pring->missbufcnt = cnt; return cnt; } INIT_LIST_HEAD(&mp1->list); /* Allocate buffer to post */ if (cnt > 1) { mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); if (mp2) mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp2->phys); if (!mp2 || !mp2->virt) { kfree(mp2); lpfc_mbuf_free(phba, mp1->virt, mp1->phys); kfree(mp1); lpfc_sli_release_iocbq(phba, iocb); pring->missbufcnt = cnt; return cnt; } INIT_LIST_HEAD(&mp2->list); } else { mp2 = NULL; } icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; icmd->ulpBdeCount = 1; cnt--; if (mp2) { icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; cnt--; icmd->ulpBdeCount = 2; } icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; icmd->ulpLe = 1; if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == IOCB_ERROR) { lpfc_mbuf_free(phba, mp1->virt, mp1->phys); kfree(mp1); cnt++; if (mp2) { lpfc_mbuf_free(phba, mp2->virt, mp2->phys); kfree(mp2); cnt++; } lpfc_sli_release_iocbq(phba, iocb); pring->missbufcnt = cnt; return cnt; } lpfc_sli_ringpostbuf_put(phba, pring, mp1); if (mp2) lpfc_sli_ringpostbuf_put(phba, pring, mp2); } pring->missbufcnt = 0; return 0; } /** * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring * @phba: pointer to lpfc hba data structure. * * This routine posts initial receive IOCB buffers to the ELS ring. The * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is * set to 64 IOCBs. * * Return codes * 0 - success (currently always success) **/ static int lpfc_post_rcv_buf(struct lpfc_hba *phba) { struct lpfc_sli *psli = &phba->sli; /* Ring 0, ELS / CT buffers */ lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); /* Ring 2 - FCP no buffers needed */ return 0; } #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) /** * lpfc_sha_init - Set up initial array of hash table entries * @HashResultPointer: pointer to an array as hash table. * * This routine sets up the initial values to the array of hash table entries * for the LC HBAs. **/ static void lpfc_sha_init(uint32_t * HashResultPointer) { HashResultPointer[0] = 0x67452301; HashResultPointer[1] = 0xEFCDAB89; HashResultPo