| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2004-2008 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 <linux/blkdev.h> |
| #include <linux/delay.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/idr.h> |
| #include <linux/interrupt.h> |
| #include <linux/kthread.h> |
| #include <linux/pci.h> |
| #include <linux/spinlock.h> |
| #include <linux/ctype.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.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 int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); |
| static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); |
| static int lpfc_post_rcv_buf(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->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); |
| 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; |
| } |
| 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->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->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->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_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->mb; |
| |
| /* Get login parameters for NID. */ |
| lpfc_read_sparam(phba, pmb, 0); |
| 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; |
| |
| if (phba->cfg_soft_wwnn) |
| u64_to_wwn(phba->cfg_soft_wwnn, |
| vport->fc_sparam.nodeName.u.wwn); |
| if (phba->cfg_soft_wwpn) |
| u64_to_wwn(phba->cfg_soft_wwpn, |
| vport->fc_sparam.portName.u.wwn); |
| memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
| sizeof (struct lpfc_name)); |
| memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
| sizeof (struct lpfc_name)); |
| |
| /* 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); |
| |
| /* 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; |
| } |
| |
| /* 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; |
| |
| 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); |
| |
| if ((phba->cfg_link_speed > LINK_SPEED_10G) |
| || ((phba->cfg_link_speed == LINK_SPEED_1G) |
| && !(phba->lmt & LMT_1Gb)) |
| || ((phba->cfg_link_speed == LINK_SPEED_2G) |
| && !(phba->lmt & LMT_2Gb)) |
| || ((phba->cfg_link_speed == LINK_SPEED_4G) |
| && !(phba->lmt & LMT_4Gb)) |
| || ((phba->cfg_link_speed == LINK_SPEED_8G) |
| && !(phba->lmt & LMT_8Gb)) |
| || ((phba->cfg_link_speed == LINK_SPEED_10G) |
| && !(phba->lmt & LMT_10Gb))) { |
| /* Reset link speed to auto */ |
| lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, |
| "1302 Invalid speed for this board: " |
| "Reset link speed to auto: x%x\n", |
| phba->cfg_link_speed); |
| phba->cfg_link_speed = LINK_SPEED_AUTO; |
| } |
| |
| 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->mb.mbxCommand, pmb->mb.mbxStatus); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| } |
| |
| /* Initialize ERATT handling flag */ |
| phba->hba_flag &= ~HBA_ERATT_HANDLED; |
| |
| /* Enable appropriate host interrupts */ |
| spin_lock_irq(&phba->hbalock); |
| status = readl(phba->HCregaddr); |
| 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); |
| |
| lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| lpfc_set_loopback_flag(phba); |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0454 Adapter failed to init, mbxCmd x%x " |
| "INIT_LINK, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| |
| /* 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) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| /* MBOX buffer will be freed in mbox compl */ |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 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); |
| 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_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 - sucess. |
| * 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_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_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) |
| { |
| LPFC_MBOXQ_t *pmboxq; |
| struct lpfc_dmabuf *buf_ptr; |
| int retval; |
| struct lpfc_sli *psli = &phba->sli; |
| LIST_HEAD(completions); |
| |
| 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) { |
| 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; |
| } |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); |
| phba->hb_outstanding = 1; |
| return; |
| } else { |
| /* |
| * If heart beat timeout called with hb_outstanding set |
| * we need to take the HBA offline. |
| */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0459 Adapter heartbeat failure, " |
| "taking this port offline.\n"); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_unblock_mgmt_io(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| lpfc_hba_down_post(phba); |
| } |
| } |
| } |
| |
| /** |
| * 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_SLI2_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_offline_prep(phba); |
| |
| lpfc_offline(phba); |
| lpfc_reset_barrier(phba); |
| lpfc_sli_brdreset(phba); |
| lpfc_hba_down_post(phba); |
| lpfc_sli_brdready(phba, HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| return; |
| } |
| |
| /** |
| * 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; |
| |
| 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_SLI2_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); |
| phba->work_hs = readl(phba->HSregaddr); |
| /* 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) { |
| /* 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]); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI2_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_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_la(phba, pmb, mp); |
| pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; |
| 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--) { |
| phba->Port[j++] = vpd[index++]; |
| if (j == 19) |
| break; |
| } |
| 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; |
| struct { |
| char * name; |
| int max_speed; |
| char * bus; |
| } m = {"<Unknown>", 0, ""}; |
| |
| if (mdp && mdp[0] != '\0' |
| && descp && descp[0] != '\0') |
| return; |
| |
| 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", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_SUPERFLY: |
| if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) |
| m = (typeof(m)){"LP7000", max_speed, "PCI"}; |
| else |
| m = (typeof(m)){"LP7000E", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_DRAGONFLY: |
| m = (typeof(m)){"LP8000", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_CENTAUR: |
| if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) |
| m = (typeof(m)){"LP9002", max_speed, "PCI"}; |
| else |
| m = (typeof(m)){"LP9000", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_RFLY: |
| m = (typeof(m)){"LP952", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_PEGASUS: |
| m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_THOR: |
| m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_VIPER: |
| m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_PFLY: |
| m = (typeof(m)){"LP982", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_TFLY: |
| m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS: |
| m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_SCSP: |
| m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_DCSP: |
| m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE: |
| m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_SCSP: |
| m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_DCSP: |
| m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_BMID: |
| m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_BSMB: |
| m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR: |
| m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_SCSP: |
| m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_DCSP: |
| m = (typeof(m)){"LP2105", max_speed, "PCIe"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_ZMID: |
| m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_ZSMB: |
| m = (typeof(m)){"LPe111", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_LP101: |
| m = (typeof(m)){"LP101", max_speed, "PCI-X"}; |
| break; |
| case PCI_DEVICE_ID_LP10000S: |
| m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; |
| break; |
| case PCI_DEVICE_ID_LP11000S: |
| m = (typeof(m)){"LP11000-S", max_speed, |
| "PCI-X2"}; |
| break; |
| case PCI_DEVICE_ID_LPE11000S: |
| m = (typeof(m)){"LPe11000-S", max_speed, |
| "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT: |
| m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT_MID: |
| m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SMB: |
| m = (typeof(m)){"LPe121", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT_DCSP: |
| m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SCSP: |
| m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_SAT_S: |
| m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; |
| break; |
| case PCI_DEVICE_ID_HORNET: |
| m = (typeof(m)){"LP21000", max_speed, "PCIe"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_VF: |
| m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_PF: |
| m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_S: |
| m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; |
| break; |
| default: |
| m = (typeof(m)){ NULL }; |
| break; |
| } |
| |
| if (mdp && mdp[0] == '\0') |
| snprintf(mdp, 79,"%s", m.name); |
| if (descp && descp[0] == '\0') |
| snprintf(descp, 255, |
| "Emulex %s %d%s %s %s", |
| m.name, m.max_speed, |
| (GE) ? "GE" : "Gb", |
| m.bus, |
| (GE) ? "FCoE Adapter" : "Fibre Channel Adapter"); |
| } |
| |
| /** |
| * 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; |
| HashResultPointer[2] = 0x98BADCFE; |
| HashResultPointer[3] = 0x10325476; |
| HashResultPointer[4] = 0xC3D2E1F0; |
| } |
| |
| /** |
| * lpfc_sha_iterate - Iterate initial hash table with the working hash table |
| * @HashResultPointer: pointer to an initial/result hash table. |
| * @HashWorkingPointer: pointer to an working hash table. |
| * |
| * This routine iterates an initial hash table pointed by @HashResultPointer |
| * with the values from the working hash table pointeed by @HashWorkingPointer. |
| * The results are putting back to the initial hash table, returned through |
| * the @HashResultPointer as the result hash table. |
| **/ |
| static void |
| lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) |
| { |
| int t; |
| uint32_t TEMP; |
| uint32_t A, B, C, D, E; |
| t = 16; |
| do { |
| HashWorkingPointer[t] = |
| S(1, |
| HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - |
| 8] ^ |
| HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); |
| } while (++t <= 79); |
| t = 0; |
| A = HashResultPointer[0]; |
| B = HashResultPointer[1]; |
| C = HashResultPointer[2]; |
| D = HashResultPointer[3]; |
| E = HashResultPointer[4]; |
| |
| do { |
| if (t < 20) { |
| TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; |
| } else if (t < 40) { |
| TEMP = (B ^ C ^ D) + 0x6ED9EBA1; |
| } else if (t < 60) { |
| TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; |
| } else { |
| TEMP = (B ^ C ^ D) + 0xCA62C1D6; |
| } |
| TEMP += S(5, A) + E + HashWorkingPointer[t]; |
| E = D; |
| D = C; |
| C = S(30, B); |
| B = A; |
| A = TEMP; |
| } while (++t <= 79); |
| |
| HashResultPointer[0] += A; |
| HashResultPointer[1] += B; |
| HashResultPointer[2] += C; |
| HashResultPointer[3] += D; |
| HashResultPointer[4] += E; |
| |
| } |
| |
| /** |
| * lpfc_challenge_key - Create challenge key based on WWPN of the HBA |
| * @RandomChallenge: pointer to the entry of host challenge random number array. |
| * @HashWorking: pointer to the entry of the working hash array. |
| * |
| * This routine calculates the working hash array referred by @HashWorking |
| * from the challenge random numbers associated with the host, referred by |
| * @RandomChallenge. The result is put into the entry of the working hash |
| * array and returned by reference through @HashWorking. |
| **/ |
| static void |
| lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) |
| { |
| *HashWorking = (*RandomChallenge ^ *HashWorking); |
| } |
| |
| /** |
| * lpfc_hba_init - Perform special handling for LC HBA initialization |
| * @phba: pointer to lpfc hba data structure. |
| * @hbainit: pointer to an array of unsigned 32-bit integers. |
| * |
| * This routine performs the special handling for LC HBA initialization. |
| **/ |
| void |
| lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) |
| { |
| int t; |
| uint32_t *HashWorking; |
| uint32_t *pwwnn = (uint32_t *) phba->wwnn; |
| |
| HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); |
| if (!HashWorking) |
| return; |
| |
| HashWorking[0] = HashWorking[78] = *pwwnn++; |
| HashWorking[1] = HashWorking[79] = *pwwnn; |
| |
| for (t = 0; t < 7; t++) |
| lpfc_challenge_key(phba->RandomData + t, HashWorking + t); |
| |
| lpfc_sha_init(hbainit); |
| lpfc_sha_iterate(hbainit, HashWorking); |
| kfree(HashWorking); |
| } |
| |
| /** |
| * lpfc_cleanup - Performs vport cleanups before deleting a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine performs the necessary cleanups before deleting the @vport. |
| * It invokes the discovery state machine to perform necessary state |
| * transitions and to release the ndlps associated with the @vport. Note, |
| * the physical port is treated as @vport 0. |
| **/ |
| void |
| lpfc_cleanup(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| int i = 0; |
| |
| if (phba->link_state > LPFC_LINK_DOWN) |
| lpfc_port_link_failure(vport); |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp)) { |
| ndlp = lpfc_enable_node(vport, ndlp, |
| NLP_STE_UNUSED_NODE); |
| if (!ndlp) |
| continue; |
| spin_lock_irq(&phba->ndlp_lock); |
| NLP_SET_FREE_REQ(ndlp); |
| spin_unlock_irq(&phba->ndlp_lock); |
| /* Trigger the release of the ndlp memory */ |
| lpfc_nlp_put(ndlp); |
| continue; |
| } |
| spin_lock_irq(&phba->ndlp_lock); |
| if (NLP_CHK_FREE_REQ(ndlp)) { |
| /* The ndlp should not be in memory free mode already */ |
| spin_unlock_irq(&phba->ndlp_lock); |
| continue; |
| } else |
| /* Indicate request for freeing ndlp memory */ |
| NLP_SET_FREE_REQ(ndlp); |
| spin_unlock_irq(&phba->ndlp_lock); |
| |
| if (vport->port_type != LPFC_PHYSICAL_PORT && |
| ndlp->nlp_DID == Fabric_DID) { |
| /* Just free up ndlp with Fabric_DID for vports */ |
| lpfc_nlp_put(ndlp); |
| continue; |
| } |
| |
| if (ndlp->nlp_type & NLP_FABRIC) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RECOVERY); |
| |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| |
| } |
| |
| /* At this point, ALL ndlp's should be gone |
| * because of the previous NLP_EVT_DEVICE_RM. |
| * Lets wait for this to happen, if needed. |
| */ |
| while (!list_empty(&vport->fc_nodes)) { |
| if (i++ > 3000) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
| "0233 Nodelist not empty\n"); |
| list_for_each_entry_safe(ndlp, next_ndlp, |
| &vport->fc_nodes, nlp_listp) { |
| lpfc_printf_vlog(ndlp->vport, KERN_ERR, |
| LOG_NODE, |
| "0282 did:x%x ndlp:x%p " |
| "usgmap:x%x refcnt:%d\n", |
| ndlp->nlp_DID, (void *)ndlp, |
| ndlp->nlp_usg_map, |
| atomic_read( |
| &ndlp->kref.refcount)); |
| } |
| break; |
| } |
| |
| /* Wait for any activity on ndlps to settle */ |
| msleep(10); |
| } |
| } |
| |
| /** |
| * lpfc_stop_vport_timers - Stop all the timers associated with a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine stops all the timers associated with a @vport. This function |
| * is invoked before disabling or deleting a @vport. Note that the physical |
| * port is treated as @vport 0. |
| **/ |
| void |
| lpfc_stop_vport_timers(struct lpfc_vport *vport) |
| { |
| del_timer_sync(&vport->els_tmofunc); |
| del_timer_sync(&vport->fc_fdmitmo); |
| lpfc_can_disctmo(vport); |
| return; |
| } |
| |
| /** |
| * lpfc_stop_hba_timers - Stop all the timers associated with an HBA |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine stops all the timers associated with a HBA. This function is |
| * invoked before either putting a HBA offline or unloading the driver. |
| **/ |
| void |
| lpfc_stop_hba_timers(struct lpfc_hba *phba) |
| { |
| lpfc_stop_vport_timers(phba->pport); |
| del_timer_sync(&phba->sli.mbox_tmo); |
| del_timer_sync(&phba->fabric_block_timer); |
| del_timer_sync(&phba->eratt_poll); |
| del_timer_sync(&phba->hb_tmofunc); |
| phba->hb_outstanding = 0; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| /* Stop any LightPulse device specific driver timers */ |
| del_timer_sync(&phba->fcp_poll_timer); |
| break; |
| case LPFC_PCI_DEV_OC: |
| /* Stop any OneConnect device sepcific driver timers */ |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0297 Invalid device group (x%x)\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine marks a HBA's management interface as blocked. Once the HBA's |
| * management interface is marked as blocked, all the user space access to |
| * the HBA, whether they are from sysfs interface or libdfc interface will |
| * all be blocked. The HBA is set to block the management interface when the |
| * driver prepares the HBA interface for online or offline. |
| **/ |
| static void |
| lpfc_block_mgmt_io(struct lpfc_hba * phba) |
| { |
| unsigned long iflag; |
| |
| spin_lock_irqsave(&phba->hbalock, iflag); |
| phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; |
| spin_unlock_irqrestore(&phba->hbalock, iflag); |
| } |
| |
| /** |
| * lpfc_online - Initialize and bring a HBA online |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine initializes the HBA and brings a HBA online. During this |
| * process, the management interface is blocked to prevent user space access |
| * to the HBA interfering with the driver initialization. |
| * |
| * Return codes |
| * 0 - successful |
| * 1 - failed |
| **/ |
| int |
| lpfc_online(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport; |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (!phba) |
| return 0; |
| vport = phba->pport; |
| |
| if (!(vport->fc_flag & FC_OFFLINE_MODE)) |
| return 0; |
| |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0458 Bring Adapter online\n"); |
| |
| lpfc_block_mgmt_io(phba); |
| |
| if (!lpfc_sli_queue_setup(phba)) { |
| lpfc_unblock_mgmt_io(phba); |
| return 1; |
| } |
| |
| if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ |
| lpfc_unblock_mgmt_io(phba); |
| return 1; |
| } |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| struct Scsi_Host *shost; |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| vports[i]->fc_flag &= ~FC_OFFLINE_MODE; |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) |
| vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| lpfc_unblock_mgmt_io(phba); |
| return 0; |
| } |
| |
| /** |
| * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine marks a HBA's management interface as not blocked. Once the |
| * HBA's management interface is marked as not blocked, all the user space |
| * access to the HBA, whether they are from sysfs interface or libdfc |
| * interface will be allowed. The HBA is set to block the management interface |
| * when the driver prepares the HBA interface for online or offline and then |
| * set to unblock the management interface afterwards. |
| **/ |
| void |
| lpfc_unblock_mgmt_io(struct lpfc_hba * phba) |
| { |
| unsigned long iflag; |
| |
| spin_lock_irqsave(&phba->hbalock, iflag); |
| phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; |
| spin_unlock_irqrestore(&phba->hbalock, iflag); |
| } |
| |
| /** |
| * lpfc_offline_prep - Prepare a HBA to be brought offline |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to prepare a HBA to be brought offline. It performs |
| * unregistration login to all the nodes on all vports and flushes the mailbox |
| * queue to make it ready to be brought offline. |
| **/ |
| void |
| lpfc_offline_prep(struct lpfc_hba * phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| return; |
| |
| lpfc_block_mgmt_io(phba); |
| |
| lpfc_linkdown(phba); |
| |
| /* Issue an unreg_login to all nodes on all vports */ |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| struct Scsi_Host *shost; |
| |
| if (vports[i]->load_flag & FC_UNLOADING) |
| continue; |
| shost = lpfc_shost_from_vport(vports[i]); |
| list_for_each_entry_safe(ndlp, next_ndlp, |
| &vports[i]->fc_nodes, |
| nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp)) |
| continue; |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| continue; |
| if (ndlp->nlp_type & NLP_FABRIC) { |
| lpfc_disc_state_machine(vports[i], ndlp, |
| NULL, NLP_EVT_DEVICE_RECOVERY); |
| lpfc_disc_state_machine(vports[i], ndlp, |
| NULL, NLP_EVT_DEVICE_RM); |
| } |
| spin_lock_irq(shost->host_lock); |
| ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
| spin_unlock_irq(shost->host_lock); |
| lpfc_unreg_rpi(vports[i], ndlp); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| lpfc_sli_flush_mbox_queue(phba); |
| } |
| |
| /** |
| * lpfc_offline - Bring a HBA offline |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine actually brings a HBA offline. It stops all the timers |
| * associated with the HBA, brings down the SLI layer, and eventually |
| * marks the HBA as in offline state for the upper layer protocol. |
| **/ |
| void |
| lpfc_offline(struct lpfc_hba *phba) |
| { |
| struct Scsi_Host *shost; |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (phba->pport->fc_flag & FC_OFFLINE_MODE) |
| return; |
| |
| /* stop all timers associated with this hba */ |
| lpfc_stop_phba_timers(phba); |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) |
| lpfc_stop_vport_timers(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0460 Bring Adapter offline\n"); |
| /* Bring down the SLI Layer and cleanup. The HBA is offline |
| now. */ |
| lpfc_sli_hba_down(phba); |
| spin_lock_irq(&phba->hbalock); |
| phba->work_ha = 0; |
| spin_unlock_irq(&phba->hbalock); |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| vports[i]->work_port_events = 0; |
| vports[i]->fc_flag |= FC_OFFLINE_MODE; |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| /** |
| * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is to free all the SCSI buffers and IOCBs from the driver |
| * list back to kernel. It is called from lpfc_pci_remove_one to free |
| * the internal resources before the device is removed from the system. |
| * |
| * Return codes |
| * 0 - successful (for now, it always returns 0) |
| **/ |
| static int |
| lpfc_scsi_free(struct lpfc_hba *phba) |
| { |
| struct lpfc_scsi_buf *sb, *sb_next; |
| struct lpfc_iocbq *io, *io_next; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* Release all the lpfc_scsi_bufs maintained by this host. */ |
| list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { |
| list_del(&sb->list); |
| pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, |
| sb->dma_handle); |
| kfree(sb); |
| phba->total_scsi_bufs--; |
| } |
| |
| /* Release all the lpfc_iocbq entries maintained by this host. */ |
| list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { |
| list_del(&io->list); |
| kfree(io); |
| phba->total_iocbq_bufs--; |
| } |
| |
| spin_unlock_irq(&phba->hbalock); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_create_port - Create an FC port |
| * @phba: pointer to lpfc hba data structure. |
| * @instance: a unique integer ID to this FC port. |
| * @dev: pointer to the device data structure. |
| * |
| * This routine creates a FC port for the upper layer protocol. The FC port |
| * can be created on top of either a physical port or a virtual port provided |
| * by the HBA. This routine also allocates a SCSI host data structure (shost) |
| * and associates the FC port created before adding the shost into the SCSI |
| * layer. |
| * |
| * Return codes |
| * @vport - pointer to the virtual N_Port data structure. |
| * NULL - port create failed. |
| **/ |
| struct lpfc_vport * |
| lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) |
| { |
| struct lpfc_vport *vport; |
| struct Scsi_Host *shost; |
| int error = 0; |
| |
| if (dev != &phba->pcidev->dev) |
| shost = scsi_host_alloc(&lpfc_vport_template, |
| sizeof(struct lpfc_vport)); |
| else |
| shost = scsi_host_alloc(&lpfc_template, |
| sizeof(struct lpfc_vport)); |
| if (!shost) |
| goto out; |
| |
| vport = (struct lpfc_vport *) shost->hostdata; |
| vport->phba = phba; |
| vport->load_flag |= FC_LOADING; |
| vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| vport->fc_rscn_flush = 0; |
| |
| lpfc_get_vport_cfgparam(vport); |
| shost->unique_id = instance; |
| shost->max_id = LPFC_MAX_TARGET; |
| shost->max_lun = vport->cfg_max_luns; |
| shost->this_id = -1; |
| shost->max_cmd_len = 16; |
| |
| /* |
| * Set initial can_queue value since 0 is no longer supported and |
| * scsi_add_host will fail. This will be adjusted later based on the |
| * max xri value determined in hba setup. |
| */ |
| shost->can_queue = phba->cfg_hba_queue_depth - 10; |
| if (dev != &phba->pcidev->dev) { |
| shost->transportt = lpfc_vport_transport_template; |
| vport->port_type = LPFC_NPIV_PORT; |
| } else { |
| shost->transportt = lpfc_transport_template; |
| vport->port_type = LPFC_PHYSICAL_PORT; |
| } |
| |
| /* Initialize all internally managed lists. */ |
| INIT_LIST_HEAD(&vport->fc_nodes); |
| spin_lock_init(&vport->work_port_lock); |
| |
| init_timer(&vport->fc_disctmo); |
| vport->fc_disctmo.function = lpfc_disc_timeout; |
| vport->fc_disctmo.data = (unsigned long)vport; |
| |
| init_timer(&vport->fc_fdmitmo); |
| vport->fc_fdmitmo.function = lpfc_fdmi_tmo; |
| vport->fc_fdmitmo.data = (unsigned long)vport; |
| |
| init_timer(&vport->els_tmofunc); |
| vport->els_tmofunc.function = lpfc_els_timeout; |
| vport->els_tmofunc.data = (unsigned long)vport; |
| |
| error = scsi_add_host(shost, dev); |
| if (error) |
| goto out_put_shost; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_add_tail(&vport->listentry, &phba->port_list); |
| spin_unlock_irq(&phba->hbalock); |
| return vport; |
| |
| out_put_shost: |
| scsi_host_put(shost); |
| out: |
| return NULL; |
| } |
| |
| /** |
| * destroy_port - destroy an FC port |
| * @vport: pointer to an lpfc virtual N_Port data structure. |
| * |
| * This routine destroys a FC port from the upper layer protocol. All the |
| * resources associated with the port are released. |
| **/ |
| void |
| destroy_port(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| |
| lpfc_debugfs_terminate(vport); |
| fc_remove_host(shost); |
| scsi_remove_host(shost); |
| |
| spin_lock_irq(&phba->hbalock); |
| list_del_init(&vport->listentry); |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_cleanup(vport); |
| return; |
| } |
| |
| /** |
| * lpfc_get_instance - Get a unique integer ID |
| * |
| * This routine allocates a unique integer ID from lpfc_hba_index pool. It |
| * uses the kernel idr facility to perform the task. |
| * |
| * Return codes: |
| * instance - a unique integer ID allocated as the new instance. |
| * -1 - lpfc get instance failed. |
| **/ |
| int |
| lpfc_get_instance(void) |
| { |
| int instance = 0; |
| |
| /* Assign an unused number */ |
| if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) |
| return -1; |
| if (idr_get_new(&lpfc_hba_index, NULL, &instance)) |
| return -1; |
| return instance; |
| } |
| |
| /** |
| * lpfc_scan_finished - method for SCSI layer to detect whether scan is done |
| * @shost: pointer to SCSI host data structure. |
| * @time: elapsed time of the scan in jiffies. |
| * |
| * This routine is called by the SCSI layer with a SCSI host to determine |
| * whether the scan host is finished. |
| * |
| * Note: there is no scan_start function as adapter initialization will have |
| * asynchronously kicked off the link initialization. |
| * |
| * Return codes |
| * 0 - SCSI host scan is not over yet. |
| * 1 - SCSI host scan is over. |
| **/ |
| int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int stat = 0; |
| |
| spin_lock_irq(shost->host_lock); |
| |
| if (vport->load_flag & FC_UNLOADING) { |
| stat = 1; |
| goto finished; |
| } |
| if (time >= 30 * HZ) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0461 Scanning longer than 30 " |
| "seconds. Continuing initialization\n"); |
| stat = 1; |
| goto finished; |
| } |
| if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0465 Link down longer than 15 " |
| "seconds. Continuing initialization\n"); |
| stat = 1; |
| goto finished; |
| } |
| |
| if (vport->port_state != LPFC_VPORT_READY) |
| goto finished; |
| if (vport->num_disc_nodes || vport->fc_prli_sent) |
| goto finished; |
| if (vport->fc_map_cnt == 0 && time < 2 * HZ) |
| goto finished; |
| if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) |
| goto finished; |
| |
| stat = 1; |
| |
| finished: |
| spin_unlock_irq(shost->host_lock); |
| return stat; |
| } |
| |
| /** |
| * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port |
| * @shost: pointer to SCSI host data structure. |
| * |
| * This routine initializes a given SCSI host attributes on a FC port. The |
| * SCSI host can be either on top of a physical port or a virtual port. |
| **/ |
| void lpfc_host_attrib_init(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| /* |
| * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). |
| */ |
| |
| 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_supported_classes(shost) = FC_COS_CLASS3; |
| |
| memset(fc_host_supported_fc4s(shost), 0, |
| sizeof(fc_host_supported_fc4s(shost))); |
| fc_host_supported_fc4s(shost)[2] = 1; |
| fc_host_supported_fc4s(shost)[7] = 1; |
| |
| lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), |
| sizeof fc_host_symbolic_name(shost)); |
| |
| fc_host_supported_speeds(shost) = 0; |
| if (phba->lmt & LMT_10Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; |
| if (phba->lmt & LMT_8Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; |
| if (phba->lmt & LMT_4Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; |
| if (phba->lmt & LMT_2Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; |
| if (phba->lmt & LMT_1Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; |
| |
| fc_host_maxframe_size(shost) = |
| (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | |
| (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; |
| |
| /* This value is also unchanging */ |
| memset(fc_host_active_fc4s(shost), 0, |
| sizeof(fc_host_active_fc4s(shost))); |
| fc_host_active_fc4s(shost)[2] = 1; |
| fc_host_active_fc4s(shost)[7] = 1; |
| |
| fc_host_max_npiv_vports(shost) = phba->max_vpi; |
| spin_lock_irq(shost->host_lock); |
| vport->load_flag &= ~FC_LOADING; |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /** |
| * lpfc_enable_msix - Enable MSI-X interrupt mode |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI-X interrupt vectors. The kernel |
| * function pci_enable_msix() is called to enable the MSI-X vectors. Note that |
| * pci_enable_msix(), once invoked, enables either all or nothing, depending |
| * on the current availability of PCI vector resources. The device driver is |
| * responsible for calling the individual request_irq() to register each MSI-X |
| * vector with a interrupt handler, which is done in this function. Note that |
| * later when device is unloading, the driver should always call free_irq() |
| * on all MSI-X vectors it has done request_irq() on before calling |
| * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device |
| * will be left with MSI-X enabled and leaks its vectors. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_enable_msix(struct lpfc_hba *phba) |
| { |
| int rc, i; |
| LPFC_MBOXQ_t *pmb; |
| |
| /* Set up MSI-X multi-message vectors */ |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| phba->msix_entries[i].entry = i; |
| |
| /* Configure MSI-X capability structure */ |
| rc = pci_enable_msix(phba->pcidev, phba->msix_entries, |
| ARRAY_SIZE(phba->msix_entries)); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0420 PCI enable MSI-X failed (%d)\n", rc); |
| goto msi_fail_out; |
| } else |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0477 MSI-X entry[%d]: vector=x%x " |
| "message=%d\n", i, |
| phba->msix_entries[i].vector, |
| phba->msix_entries[i].entry); |
| /* |
| * Assign MSI-X vectors to interrupt handlers |
| */ |
| |
| /* vector-0 is associated to slow-path handler */ |
| rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler, |
| IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0421 MSI-X slow-path request_irq failed " |
| "(%d)\n", rc); |
| goto msi_fail_out; |
| } |
| |
| /* vector-1 is associated to fast-path handler */ |
| rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler, |
| IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba); |
| |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0429 MSI-X fast-path request_irq failed " |
| "(%d)\n", rc); |
| goto irq_fail_out; |
| } |
| |
| /* |
| * Configure HBA MSI-X attention conditions to messages |
| */ |
| pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| |
| if (!pmb) { |
| rc = -ENOMEM; |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0474 Unable to allocate memory for issuing " |
| "MBOX_CONFIG_MSI command\n"); |
| goto mem_fail_out; |
| } |
| rc = lpfc_config_msi(phba, pmb); |
| if (rc) |
| goto mbx_fail_out; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| "0351 Config MSI mailbox command failed, " |
| "mbxCmd x%x, mbxStatus x%x\n", |
| pmb->mb.mbxCommand, pmb->mb.mbxStatus); |
| goto mbx_fail_out; |
| } |
| |
| /* Free memory allocated for mailbox command */ |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return rc; |
| |
| mbx_fail_out: |
| /* Free memory allocated for mailbox command */ |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| mem_fail_out: |
| /* free the irq already requested */ |
| free_irq(phba->msix_entries[1].vector, phba); |
| |
| irq_fail_out: |
| /* free the irq already requested */ |
| free_irq(phba->msix_entries[0].vector, phba); |
| |
| msi_fail_out: |
| /* Unconfigure MSI-X capability structure */ |
| pci_disable_msix(phba->pcidev); |
| return rc; |
| } |
| |
| /** |
| * lpfc_disable_msix - Disable MSI-X interrupt mode |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to release the MSI-X vectors and then disable the |
| * MSI-X interrupt mode. |
| **/ |
| static void |
| lpfc_disable_msix(struct lpfc_hba *phba) |
| { |
| int i; |
| |
| /* Free up MSI-X multi-message vectors */ |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| free_irq(phba->msix_entries[i].vector, phba); |
| /* Disable MSI-X */ |
| pci_disable_msix(phba->pcidev); |
| } |
| |
| /** |
| * lpfc_enable_msi - Enable MSI interrupt mode |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI interrupt mode. The kernel |
| * function pci_enable_msi() is called to enable the MSI vector. The |
| * device driver is responsible for calling the request_irq() to register |
| * MSI vector with a interrupt the handler, which is done in this function. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| */ |
| static int |
| lpfc_enable_msi(struct lpfc_hba *phba) |
| { |
| int rc; |
| |
| rc = pci_enable_msi(phba->pcidev); |
| if (!rc) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0462 PCI enable MSI mode success.\n"); |
| else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0471 PCI enable MSI mode failed (%d)\n", rc); |
| return rc; |
| } |
| |
| rc = request_irq(phba->pcidev->irq, lpfc_intr_handler, |
| IRQF_SHARED, LPFC_DRIVER_NAME, phba); |
| if (rc) { |
| pci_disable_msi(phba->pcidev); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0478 MSI request_irq failed (%d)\n", rc); |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_disable_msi - Disable MSI interrupt mode |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to disable the MSI interrupt mode. The driver |
| * calls free_irq() on MSI vector it has done request_irq() on before |
| * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and |
| * a device will be left with MSI enabled and leaks its vector. |
| */ |
| |
| static void |
| lpfc_disable_msi(struct lpfc_hba *phba) |
| { |
| free_irq(phba->pcidev->irq, phba); |
| pci_disable_msi(phba->pcidev); |
| return; |
| } |
| |
| /** |
| * lpfc_log_intr_mode - Log the active interrupt mode |
| * @phba: pointer to lpfc hba data structure. |
| * @intr_mode: active interrupt mode adopted. |
| * |
| * This routine it invoked to log the currently used active interrupt mode |
| * to the device. |
| **/ |
| static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) |
| { |
| switch (intr_mode) { |
| case 0: |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0470 Enable INTx interrupt mode.\n"); |
| break; |
| case 1: |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0481 Enabled MSI interrupt mode.\n"); |
| break; |
| case 2: |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0480 Enabled MSI-X interrupt mode.\n"); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0482 Illegal interrupt mode.\n"); |
| break; |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_enable_pci_dev - Enable a generic PCI device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the PCI device that is common to all |
| * PCI devices. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_enable_pci_dev(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| int bars; |
| |
| /* Obtain PCI device reference */ |
| if (!phba->pcidev) |
| goto out_error; |
| else |
| pdev = phba->pcidev; |
| /* Select PCI BARs */ |
| bars = pci_select_bars(pdev, IORESOURCE_MEM); |
| /* Enable PCI device */ |
| if (pci_enable_device_mem(pdev)) |
| goto out_error; |
| /* Request PCI resource for the device */ |
| if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) |
| goto out_disable_device; |
| /* Set up device as PCI master and save state for EEH */ |
| pci_set_master(pdev); |
| pci_try_set_mwi(pdev); |
| pci_save_state(pdev); |
| |
| return 0; |
| |
| out_disable_device: |
| pci_disable_device(pdev); |
| out_error: |
| return -ENODEV; |
| } |
| |
| /** |
| * lpfc_disable_pci_dev - Disable a generic PCI device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to disable the PCI device that is common to all |
| * PCI devices. |
| **/ |
| static void |
| lpfc_disable_pci_dev(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| int bars; |
| |
| /* Obtain PCI device reference */ |
| if (!phba->pcidev) |
| return; |
| else |
| pdev = phba->pcidev; |
| /* Select PCI BARs */ |
| bars = pci_select_bars(pdev, IORESOURCE_MEM); |
| /* Release PCI resource and disable PCI device */ |
| pci_release_selected_regions(pdev, bars); |
| pci_disable_device(pdev); |
| /* Null out PCI private reference to driver */ |
| pci_set_drvdata(pdev, NULL); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_reset_hba - Reset a hba |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to reset a hba device. It brings the HBA |
| * offline, performs a board restart, and then brings the board back |
| * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up |
| * on outstanding mailbox commands. |
| **/ |
| void |
| lpfc_reset_hba(struct lpfc_hba *phba) |
| { |
| /* If resets are disabled then set error state and return. */ |
| if (!phba->cfg_enable_hba_reset) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return; |
| } |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| lpfc_online(phba); |
| lpfc_unblock_mgmt_io(phba); |
| } |
| |
| /** |
| * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up the driver internal resources specific to |
| * support the SLI-3 HBA device it attached to. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli; |
| |
| /* |
| * Initialize timers used by driver |
| */ |
| |
| /* Heartbeat timer */ |
| init_timer(&phba->hb_tmofunc); |
| phba->hb_tmofunc.function = lpfc_hb_timeout; |
| phba->hb_tmofunc.data = (unsigned long)phba; |
| |
| psli = &phba->sli; |
| /* MBOX heartbeat timer */ |
| init_timer(&psli->mbox_tmo); |
| psli->mbox_tmo.function = lpfc_mbox_timeout; |
| psli->mbox_tmo.data = (unsigned long) phba; |
| /* FCP polling mode timer */ |
| init_timer(&phba->fcp_poll_timer); |
| phba->fcp_poll_timer.function = lpfc_poll_timeout; |
| phba->fcp_poll_timer.data = (unsigned long) phba; |
| /* Fabric block timer */ |
| init_timer(&phba->fabric_block_timer); |
| phba->fabric_block_timer.function = lpfc_fabric_block_timeout; |
| phba->fabric_block_timer.data = (unsigned long) phba; |
| /* EA polling mode timer */ |
| init_timer(&phba->eratt_poll); |
| phba->eratt_poll.function = lpfc_poll_eratt; |
| phba->eratt_poll.data = (unsigned long) phba; |
| |
| /* Host attention work mask setup */ |
| phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); |
| phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); |
| |
| /* Get all the module params for configuring this host */ |
| lpfc_get_cfgparam(phba); |
| /* |
| * Since the sg_tablesize is module parameter, the sg_dma_buf_size |
| * used to create the sg_dma_buf_pool must be dynamically calculated. |
| * 2 segments are added since the IOCB needs a command and response bde. |
| */ |
| phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + |
| sizeof(struct fcp_rsp) + |
| ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); |
| |
| if (phba->cfg_enable_bg) { |
| phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; |
| phba->cfg_sg_dma_buf_size += |
| phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); |
| } |
| |
| /* Also reinitialize the host templates with new values. */ |
| lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; |
| lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; |
| |
| phba->max_vpi = LPFC_MAX_VPI; |
| /* This will be set to correct value after config_port mbox */ |
| phba->max_vports = 0; |
| |
| /* |
| * Initialize the SLI Layer to run with lpfc HBAs. |
| */ |
| lpfc_sli_setup(phba); |
| lpfc_sli_queue_setup(phba); |
| |
| /* Allocate device driver memory */ |
| if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unset the driver internal resources set up |
| * specific for supporting the SLI-3 HBA device it attached to. |
| **/ |
| static void |
| lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) |
| { |
| /* Free device driver memory allocated */ |
| lpfc_mem_free_all(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_init_api_table_setup - Set up init api fucntion jump table |
| * @phba: The hba struct for which this call is being executed. |
| * @dev_grp: The HBA PCI-Device group number. |
| * |
| * This routine sets up the device INIT interface API function jump table |
| * in @phba struct. |
| * |
| * Returns: 0 - success, -ENODEV - failure. |
| **/ |
| int |
| lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) |
| { |
| switch (dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; |
| phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; |
| phba->lpfc_stop_port = lpfc_stop_port_s3; |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1431 Invalid HBA PCI-device group: 0x%x\n", |
| dev_grp); |
| return -ENODEV; |
| break; |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up the driver internal resources before the |
| * device specific resource setup to support the HBA device it attached to. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) |
| { |
| /* |
| * Driver resources common to all SLI revisions |
| */ |
| atomic_set(&phba->fast_event_count, 0); |
| spin_lock_init(&phba->hbalock); |
| |
| /* Initialize ndlp management spinlock */ |
| spin_lock_init(&phba->ndlp_lock); |
| |
| INIT_LIST_HEAD(&phba->port_list); |
| INIT_LIST_HEAD(&phba->work_list); |
| init_waitqueue_head(&phba->wait_4_mlo_m_q); |
| |
| /* Initialize the wait queue head for the kernel thread */ |
| init_waitqueue_head(&phba->work_waitq); |
| |
| /* Initialize the scsi buffer list used by driver for scsi IO */ |
| spin_lock_init(&phba->scsi_buf_list_lock); |
| INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); |
| |
| /* Initialize the fabric iocb list */ |
| INIT_LIST_HEAD(&phba->fabric_iocb_list); |
| |
| /* Initialize list to save ELS buffers */ |
| INIT_LIST_HEAD(&phba->elsbuf); |
| |
| /* Initialize FCF connection rec list */ |
| INIT_LIST_HEAD(&phba->fcf_conn_rec_list); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up the driver internal resources after the |
| * device specific resource setup to support the HBA device it attached to. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) |
| { |
| int error; |
| |
| /* Startup the kernel thread for this host adapter. */ |
| phba->worker_thread = kthread_run(lpfc_do_work, phba, |
| "lpfc_worker_%d", phba->brd_no); |
| if (IS_ERR(phba->worker_thread)) { |
| error = PTR_ERR(phba->worker_thread); |
| return error; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unset the driver internal resources set up after |
| * the device specific resource setup for supporting the HBA device it |
| * attached to. |
| **/ |
| static void |
| lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) |
| { |
| /* Stop kernel worker thread */ |
| kthread_stop(phba->worker_thread); |
| } |
| |
| /** |
| * lpfc_free_iocb_list - Free iocb list. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to free the driver's IOCB list and memory. |
| **/ |
| static void |
| lpfc_free_iocb_list(struct lpfc_hba *phba) |
| { |
| struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(iocbq_entry, iocbq_next, |
| &phba->lpfc_iocb_list, list) { |
| list_del(&iocbq_entry->list); |
| kfree(iocbq_entry); |
| phba->total_iocbq_bufs--; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_init_iocb_list - Allocate and initialize iocb list. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate and initizlize the driver's IOCB |
| * list and set up the IOCB tag array accordingly. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) |
| { |
| struct lpfc_iocbq *iocbq_entry = NULL; |
| uint16_t iotag; |
| int i; |
| |
| /* Initialize and populate the iocb list per host. */ |
| INIT_LIST_HEAD(&phba->lpfc_iocb_list); |
| for (i = 0; i < iocb_count; i++) { |
| iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); |
| if (iocbq_entry == NULL) { |
| printk(KERN_ERR "%s: only allocated %d iocbs of " |
| "expected %d count. Unloading driver.\n", |
| __func__, i, LPFC_IOCB_LIST_CNT); |
| goto out_free_iocbq; |
| } |
| |
| iotag = lpfc_sli_next_iotag(phba, iocbq_entry); |
| if (iotag == 0) { |
| kfree(iocbq_entry); |
| printk(KERN_ERR "%s: failed to allocate IOTAG. " |
| "Unloading driver.\n", __func__); |
| goto out_free_iocbq; |
| } |
| iocbq_entry->sli4_xritag = NO_XRI; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); |
| phba->total_iocbq_bufs++; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| return 0; |
| |
| out_free_iocbq: |
| lpfc_free_iocb_list(phba); |
| |
| return -ENOMEM; |
| } |
| |
| /** |
| * lpfc_hba_alloc - Allocate driver hba data structure for a device. |
| * @pdev: pointer to pci device data structure. |
| * |
| * This routine is invoked to allocate the driver hba data structure for an |
| * HBA device. If the allocation is successful, the phba reference to the |
| * PCI device data structure is set. |
| * |
| * Return codes |
| * pointer to @phba - sucessful |
| * NULL - error |
| **/ |
| static struct lpfc_hba * |
| lpfc_hba_alloc(struct pci_dev *pdev) |
| { |
| struct lpfc_hba *phba; |
| |
| /* Allocate memory for HBA structure */ |
| phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); |
| if (!phba) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1417 Failed to allocate hba struct.\n"); |
| return NULL; |
| } |
| |
| /* Set reference to PCI device in HBA structure */ |
| phba->pcidev = pdev; |
| |
| /* Assign an unused board number */ |
| phba->brd_no = lpfc_get_instance(); |
| if (phba->brd_no < 0) { |
| kfree(phba); |
| return NULL; |
| } |
| |
| return phba; |
| } |
| |
| /** |
| * lpfc_hba_free - Free driver hba data structure with a device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to free the driver hba data structure with an |
| * HBA device. |
| **/ |
| static void |
| lpfc_hba_free(struct lpfc_hba *phba) |
| { |
| /* Release the driver assigned board number */ |
| idr_remove(&lpfc_hba_index, phba->brd_no); |
| |
| kfree(phba); |
| return; |
| } |
| |
| /** |
| * lpfc_create_shost - Create hba physical port with associated scsi host. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to create HBA physical port and associate a SCSI |
| * host with it. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_create_shost(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport; |
| struct Scsi_Host *shost; |
| |
| /* Initialize HBA FC structure */ |
| phba->fc_edtov = FF_DEF_EDTOV; |
| phba->fc_ratov = FF_DEF_RATOV; |
| phba->fc_altov = FF_DEF_ALTOV; |
| phba->fc_arbtov = FF_DEF_ARBTOV; |
| |
| vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); |
| if (!vport) |
| return -ENODEV; |
| |
| shost = lpfc_shost_from_vport(vport); |
| phba->pport = vport; |
| lpfc_debugfs_initialize(vport); |
| /* Put reference to SCSI host to driver's device private data */ |
| pci_set_drvdata(phba->pcidev, shost); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to destroy HBA physical port and the associated |
| * SCSI host. |
| **/ |
| static void |
| lpfc_destroy_shost(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| |
| /* Destroy physical port that associated with the SCSI host */ |
| destroy_port(vport); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_setup_bg - Setup Block guard structures and debug areas. |
| * @phba: pointer to lpfc hba data structure. |
| * @shost: the shost to be used to detect Block guard settings. |
| * |
| * This routine sets up the local Block guard protocol settings for @shost. |
| * This routine also allocates memory for debugging bg buffers. |
| **/ |
| static void |
| lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) |
| { |
| int pagecnt = 10; |
| if (lpfc_prot_mask && lpfc_prot_guard) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "1478 Registering BlockGuard with the " |
| "SCSI layer\n"); |
| scsi_host_set_prot(shost, lpfc_prot_mask); |
| scsi_host_set_guard(shost, lpfc_prot_guard); |
| } |
| if (!_dump_buf_data) { |
| while (pagecnt) { |
| spin_lock_init(&_dump_buf_lock); |
| _dump_buf_data = |
| (char *) __get_free_pages(GFP_KERNEL, pagecnt); |
| if (_dump_buf_data) { |
| printk(KERN_ERR "BLKGRD allocated %d pages for " |
| "_dump_buf_data at 0x%p\n", |
| (1 << pagecnt), _dump_buf_data); |
| _dump_buf_data_order = pagecnt; |
| memset(_dump_buf_data, 0, |
| ((1 << PAGE_SHIFT) << pagecnt)); |
| break; |
| } else |
| --pagecnt; |
| } |
| if (!_dump_buf_data_order) |
| printk(KERN_ERR "BLKGRD ERROR unable to allocate " |
| "memory for hexdump\n"); |
| } else |
| printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" |
| "\n", _dump_buf_data); |
| if (!_dump_buf_dif) { |
| while (pagecnt) { |
| _dump_buf_dif = |
| (char *) __get_free_pages(GFP_KERNEL, pagecnt); |
| if (_dump_buf_dif) { |
| printk(KERN_ERR "BLKGRD allocated %d pages for " |
| "_dump_buf_dif at 0x%p\n", |
| (1 << pagecnt), _dump_buf_dif); |
| _dump_buf_dif_order = pagecnt; |
| memset(_dump_buf_dif, 0, |
| ((1 << PAGE_SHIFT) << pagecnt)); |
| break; |
| } else |
| --pagecnt; |
| } |
| if (!_dump_buf_dif_order) |
| printk(KERN_ERR "BLKGRD ERROR unable to allocate " |
| "memory for hexdump\n"); |
| } else |
| printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", |
| _dump_buf_dif); |
| } |
| |
| /** |
| * lpfc_post_init_setup - Perform necessary device post initialization setup. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to perform all the necessary post initialization |
| * setup for the device. |
| **/ |
| static void |
| lpfc_post_init_setup(struct lpfc_hba *phba) |
| { |
| struct Scsi_Host *shost; |
| struct lpfc_adapter_event_header adapter_event; |
| |
| /* Get the default values for Model Name and Description */ |
| lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); |
| |
| /* |
| * hba setup may have changed the hba_queue_depth so we need to |
| * adjust the value of can_queue. |
| */ |
| shost = pci_get_drvdata(phba->pcidev); |
| shost->can_queue = phba->cfg_hba_queue_depth - 10; |
| if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) |
| lpfc_setup_bg(phba, shost); |
| |
| lpfc_host_attrib_init(shost); |
| |
| if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
| spin_lock_irq(shost->host_lock); |
| lpfc_poll_start_timer(phba); |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0428 Perform SCSI scan\n"); |
| /* Send board arrival event to upper layer */ |
| adapter_event.event_type = FC_REG_ADAPTER_EVENT; |
| adapter_event.subcategory = LPFC_EVENT_ARRIVAL; |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(adapter_event), |
| (char *) &adapter_event, |
| LPFC_NL_VENDOR_ID); |
| return; |
| } |
| |
| /** |
| * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up the PCI device memory space for device |
| * with SLI-3 interface spec. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| unsigned long bar0map_len, bar2map_len; |
| int i, hbq_count; |
| void *ptr; |
| int error = -ENODEV; |
| |
| /* Obtain PCI device reference */ |
| if (!phba->pcidev) |
| return error; |
| else |
| pdev = phba->pcidev; |
| |
| /* Set the device DMA mask size */ |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
| return error; |
| |
| /* Get the bus address of Bar0 and Bar2 and the number of bytes |
| * required by each mapping. |
| */ |
| phba->pci_bar0_map = pci_resource_start(pdev, 0); |
| bar0map_len = pci_resource_len(pdev, 0); |
| |
| phba->pci_bar2_map = pci_resource_start(pdev, 2); |
| bar2map_len = pci_resource_len(pdev, 2); |
| |
| /* Map HBA SLIM to a kernel virtual address. */ |
| phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); |
| if (!phba->slim_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for SLIM memory.\n"); |
| goto out; |
| } |
| |
| /* Map HBA Control Registers to a kernel virtual address. */ |
| phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); |
| if (!phba->ctrl_regs_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for HBA control registers.\n"); |
| goto out_iounmap_slim; |
| } |
| |
| /* Allocate memory for SLI-2 structures */ |
| phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, |
| SLI2_SLIM_SIZE, |
| &phba->slim2p.phys, |
| GFP_KERNEL); |
| if (!phba->slim2p.virt) |
| goto out_iounmap; |
| |
| memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); |
| phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); |
| phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); |
| phba->IOCBs = (phba->slim2p.virt + |
| offsetof(struct lpfc_sli2_slim, IOCBs)); |
| |
| phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, |
| lpfc_sli_hbq_size(), |
| &phba->hbqslimp.phys, |
| GFP_KERNEL); |
| if (!phba->hbqslimp.virt) |
| goto out_free_slim; |
| |
| hbq_count = lpfc_sli_hbq_count(); |
| ptr = phba->hbqslimp.virt; |
| for (i = 0; i < hbq_count; ++i) { |
| phba->hbqs[i].hbq_virt = ptr; |
| INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); |
| ptr += (lpfc_hbq_defs[i]->entry_count * |
| sizeof(struct lpfc_hbq_entry)); |
| } |
| phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; |
| phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; |
| |
| memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); |
| |
| INIT_LIST_HEAD(&phba->rb_pend_list); |
| |
| phba->MBslimaddr = phba->slim_memmap_p; |
| phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; |
| phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; |
| phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; |
| phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; |
| |
| return 0; |
| |
| out_free_slim: |
| dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, |
| phba->slim2p.virt, phba->slim2p.phys); |
| out_iounmap: |
| iounmap(phba->ctrl_regs_memmap_p); |
| out_iounmap_slim: |
| iounmap(phba->slim_memmap_p); |
| out: |
| return error; |
| } |
| |
| /** |
| * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unset the PCI device memory space for device |
| * with SLI-3 interface spec. |
| **/ |
| static void |
| lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| |
| /* Obtain PCI device reference */ |
| if (!phba->pcidev) |
| return; |
| else |
| pdev = phba->pcidev; |
| |
| /* Free coherent DMA memory allocated */ |
| dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), |
| phba->hbqslimp.virt, phba->hbqslimp.phys); |
| dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, |
| phba->slim2p.virt, phba->slim2p.phys); |
| |
| /* I/O memory unmap */ |
| iounmap(phba->ctrl_regs_memmap_p); |
| iounmap(phba->slim_memmap_p); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI-X interrupt vectors to device |
| * with SLI-3 interface specs. The kernel function pci_enable_msix() is |
| * called to enable the MSI-X vectors. Note that pci_enable_msix(), once |
| * invoked, enables either all or nothing, depending on the current |
| * availability of PCI vector resources. The device driver is responsible |
| * for calling the individual request_irq() to register each MSI-X vector |
| * with a interrupt handler, which is done in this function. Note that |
| * later when device is unloading, the driver should always call free_irq() |
| * on all MSI-X vectors it has done request_irq() on before calling |
| * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device |
| * will be left with MSI-X enabled and leaks its vectors. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli_enable_msix(struct lpfc_hba *phba) |
| { |
| int rc, i; |
| LPFC_MBOXQ_t *pmb; |
| |
| /* Set up MSI-X multi-message vectors */ |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| phba->msix_entries[i].entry = i; |
| |
| /* Configure MSI-X capability structure */ |
| rc = pci_enable_msix(phba->pcidev, phba->msix_entries, |
| ARRAY_SIZE(phba->msix_entries)); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0420 PCI enable MSI-X failed (%d)\n", rc); |
| goto msi_fail_out; |
| } |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0477 MSI-X entry[%d]: vector=x%x " |
| "message=%d\n", i, |
| phba->msix_entries[i].vector, |
| phba->msix_entries[i].entry); |
| /* |
| * Assign MSI-X vectors to interrupt handlers |
| */ |
| |
| /* vector-0 is associated to slow-path handler */ |
| rc = request_irq(phba->msix_entries[0].vector, |
| &lpfc_sli_sp_intr_handler, IRQF_SHARED, |
| LPFC_SP_DRIVER_HANDLER_NAME, phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0421 MSI-X slow-path request_irq failed " |
| "(%d)\n", rc); |
| goto msi_fail_out; |
| } |
| |
| /* vector-1 is associated to fast-path handler */ |
| rc = request_irq(phba->msix_entries[1].vector, |
| &lpfc_sli_fp_intr_handler, IRQF_SHARED, |
| LPFC_FP_DRIVER_HANDLER_NAME, phba); |
| |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0429 MSI-X fast-path request_irq failed " |
| "(%d)\n", rc); |
| goto irq_fail_out; |
| } |
| |
| /* |
| * Configure HBA MSI-X attention conditions to messages |
| */ |
| pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| |
| if (!pmb) { |
| rc = -ENOMEM; |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0474 Unable to allocate memory for issuing " |
| "MBOX_CONFIG_MSI command\n"); |
| goto mem_fail_out; |
| } |
| rc = lpfc_config_msi(phba, pmb); |
| if (rc) |
| goto mbx_fail_out; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| "0351 Config MSI mailbox command failed, " |
| "mbxCmd x%x, mbxStatus x%x\n", |
| pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); |
| goto mbx_fail_out; |
| } |
| |
| /* Free memory allocated for mailbox command */ |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return rc; |
| |
| mbx_fail_out: |
| /* Free memory allocated for mailbox command */ |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| mem_fail_out: |
| /* free the irq already requested */ |
| free_irq(phba->msix_entries[1].vector, phba); |
| |
| irq_fail_out: |
| /* free the irq already requested */ |
| free_irq(phba->msix_entries[0].vector, phba); |
| |
| msi_fail_out: |
| /* Unconfigure MSI-X capability structure */ |
| pci_disable_msix(phba->pcidev); |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to release the MSI-X vectors and then disable the |
| * MSI-X interrupt mode to device with SLI-3 interface spec. |
| **/ |
| static void |
| lpfc_sli_disable_msix(struct lpfc_hba *phba) |
| { |
| int i; |
| |
| /* Free up MSI-X multi-message vectors */ |
| for (i = 0; i < LPFC_MSIX_VECTORS; i++) |
| free_irq(phba->msix_entries[i].vector, phba); |
| /* Disable MSI-X */ |
| pci_disable_msix(phba->pcidev); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI interrupt mode to device with |
| * SLI-3 interface spec. The kernel function pci_enable_msi() is called to |
| * enable the MSI vector. The device driver is responsible for calling the |
| * request_irq() to register MSI vector with a interrupt the handler, which |
| * is done in this function. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| */ |
| static int |
| lpfc_sli_enable_msi(struct lpfc_hba *phba) |
| { |
| int rc; |
| |
| rc = pci_enable_msi(phba->pcidev); |
| if (!rc) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0462 PCI enable MSI mode success.\n"); |
| else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0471 PCI enable MSI mode failed (%d)\n", rc); |
| return rc; |
| } |
| |
| rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, |
| IRQF_SHARED, LPFC_DRIVER_NAME, phba); |
| if (rc) { |
| pci_disable_msi(phba->pcidev); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0478 MSI request_irq failed (%d)\n", rc); |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to disable the MSI interrupt mode to device with |
| * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has |
| * done request_irq() on before calling pci_disable_msi(). Failure to do so |
| * results in a BUG_ON() and a device will be left with MSI enabled and leaks |
| * its vector. |
| */ |
| static void |
| lpfc_sli_disable_msi(struct lpfc_hba *phba) |
| { |
| free_irq(phba->pcidev->irq, phba); |
| pci_disable_msi(phba->pcidev); |
| return; |
| } |
| |
| /** |
| * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable device interrupt and associate driver's |
| * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface |
| * spec. Depends on the interrupt mode configured to the driver, the driver |
| * will try to fallback from the configured interrupt mode to an interrupt |
| * mode which is supported by the platform, kernel, and device in the order |
| * of: |
| * MSI-X -> MSI -> IRQ. |
| * |
| * Return codes |
| * 0 - sucessful |
| * other values - error |
| **/ |
| static uint32_t |
| lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) |
| { |
| uint32_t intr_mode = LPFC_INTR_ERROR; |
| int retval; |
| |
| if (cfg_mode == 2) { |
| /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ |
| retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); |
| if (!retval) { |
| /* Now, try to enable MSI-X interrupt mode */ |
| retval = lpfc_sli_enable_msix(phba); |
| if (!retval) { |
| /* Indicate initialization to MSI-X mode */ |
| phba->intr_type = MSIX; |
| intr_mode = 2; |
| } |
| } |
| } |
| |
| /* Fallback to MSI if MSI-X initialization failed */ |
| if (cfg_mode >= 1 && phba->intr_type == NONE) { |
| retval = lpfc_sli_enable_msi(phba); |
| if (!retval) { |
| /* Indicate initialization to MSI mode */ |
| phba->intr_type = MSI; |
| intr_mode = 1; |
| } |
| } |
| |
| /* Fallback to INTx if both MSI-X/MSI initalization failed */ |
| if (phba->intr_type == NONE) { |
| retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, |
| IRQF_SHARED, LPFC_DRIVER_NAME, phba); |
| if (!retval) { |
| /* Indicate initialization to INTx mode */ |
| phba->intr_type = INTx; |
| intr_mode = 0; |
| } |
| } |
| return intr_mode; |
| } |
| |
| /** |
| * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to disable device interrupt and disassociate the |
| * driver's interrupt handler(s) from interrupt vector(s) to device with |
| * SLI-3 interface spec. Depending on the interrupt mode, the driver will |
| * release the interrupt vector(s) for the message signaled interrupt. |
| **/ |
| static void |
| lpfc_sli_disable_intr(struct lpfc_hba *phba) |
| { |
| /* Disable the currently initialized interrupt mode */ |
| if (phba->intr_type == MSIX) |
| lpfc_sli_disable_msix(phba); |
| else if (phba->intr_type == MSI) |
| lpfc_sli_disable_msi(phba); |
| else if (phba->intr_type == INTx) |
| free_irq(phba->pcidev->irq, phba); |
| |
| /* Reset interrupt management states */ |
| phba->intr_type = NONE; |
| phba->sli.slistat.sli_intr = 0; |
| |
| return; |
| } |
| |
| /** |
| * lpfc_unset_hba - Unset SLI3 hba device initialization |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unset the HBA device initialization steps to |
| * a device with SLI-3 interface spec. |
| **/ |
| static void |
| lpfc_unset_hba(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| spin_lock_irq(shost->host_lock); |
| vport->load_flag |= FC_UNLOADING; |
| spin_unlock_irq(shost->host_lock); |
| |
| lpfc_stop_hba_timers(phba); |
| |
| phba->pport->work_port_events = 0; |
| |
| lpfc_sli_hba_down(phba); |
| |
| lpfc_sli_brdrestart(phba); |
| |
| lpfc_sli_disable_intr(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. |
| * @pdev: pointer to PCI device |
| * @pid: pointer to PCI device identifier |
| * |
| * This routine is to be called to attach a device with SLI-3 interface spec |
| * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is |
| * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific |
| * information of the device and driver to see if the driver state that it can |
| * support this kind of device. If the match is successful, the driver core |
| * invokes this routine. If this routine determines it can claim the HBA, it |
| * does all the initialization that it needs to do to handle the HBA properly. |
| * |
| * Return code |
| * 0 - driver can claim the device |
| * negative value - driver can not claim the device |
| **/ |
| static int __devinit |
| lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) |
| { |
| struct lpfc_hba *phba; |
| struct lpfc_vport *vport = NULL; |
| int error; |
| uint32_t cfg_mode, intr_mode; |
| |
| /* Allocate memory for HBA structure */ |
| phba = lpfc_hba_alloc(pdev); |
| if (!phba) |
| return -ENOMEM; |
| |
| /* Perform generic PCI device enabling operation */ |
| error = lpfc_enable_pci_dev(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1401 Failed to enable pci device.\n"); |
| goto out_free_phba; |
| } |
| |
| /* Set up SLI API function jump table for PCI-device group-0 HBAs */ |
| error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); |
| if (error) |
| goto out_disable_pci_dev; |
| |
| /* Set up SLI-3 specific device PCI memory space */ |
| error = lpfc_sli_pci_mem_setup(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1402 Failed to set up pci memory space.\n"); |
| goto out_disable_pci_dev; |
| } |
| |
| /* Set up phase-1 common device driver resources */ |
| error = lpfc_setup_driver_resource_phase1(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1403 Failed to set up driver resource.\n"); |
| goto out_unset_pci_mem_s3; |
| } |
| |
| /* Set up SLI-3 specific device driver resources */ |
| error = lpfc_sli_driver_resource_setup(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1404 Failed to set up driver resource.\n"); |
| goto out_unset_pci_mem_s3; |
| } |
| |
| /* Initialize and populate the iocb list per host */ |
| error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1405 Failed to initialize iocb list.\n"); |
| goto out_unset_driver_resource_s3; |
| } |
| |
| /* Set up common device driver resources */ |
| error = lpfc_setup_driver_resource_phase2(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1406 Failed to set up driver resource.\n"); |
| goto out_free_iocb_list; |
| } |
| |
| /* Create SCSI host to the physical port */ |
| error = lpfc_create_shost(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1407 Failed to create scsi host.\n"); |
| goto out_unset_driver_resource; |
| } |
| |
| /* Configure sysfs attributes */ |
| vport = phba->pport; |
| error = lpfc_alloc_sysfs_attr(vport); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1476 Failed to allocate sysfs attr\n"); |
| goto out_destroy_shost; |
| } |
| |
| /* Now, trying to enable interrupt and bring up the device */ |
| cfg_mode = phba->cfg_use_msi; |
| while (true) { |
| /* Put device to a known state before enabling interrupt */ |
| lpfc_stop_port(phba); |
| /* Configure and enable interrupt */ |
| intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0431 Failed to enable interrupt.\n"); |
| error = -ENODEV; |
| goto out_free_sysfs_attr; |
| } |
| /* SLI-3 HBA setup */ |
| if (lpfc_sli_hba_setup(phba)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1477 Failed to set up hba\n"); |
| error = -ENODEV; |
| goto out_remove_device; |
| } |
| |
| /* Wait 50ms for the interrupts of previous mailbox commands */ |
| msleep(50); |
| /* Check active interrupts on message signaled interrupts */ |
| if (intr_mode == 0 || |
| phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { |
| /* Log the current active interrupt mode */ |
| phba->intr_mode = intr_mode; |
| lpfc_log_intr_mode(phba, intr_mode); |
| break; |
| } else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0447 Configure interrupt mode (%d) " |
| "failed active interrupt test.\n", |
| intr_mode); |
| /* Disable the current interrupt mode */ |
| lpfc_sli_disable_intr(phba); |
| /* Try next level of interrupt mode */ |
| cfg_mode = --intr_mode; |
| } |
| } |
| |
| /* Perform post initialization setup */ |
| lpfc_post_init_setup(phba); |
| |
| /* Check if there are static vports to be created. */ |
| lpfc_create_static_vport(phba); |
| |
| return 0; |
| |
| out_remove_device: |
| lpfc_unset_hba(phba); |
| out_free_sysfs_attr: |
| lpfc_free_sysfs_attr(vport); |
| out_destroy_shost: |
| lpfc_destroy_shost(phba); |
| out_unset_driver_resource: |
| lpfc_unset_driver_resource_phase2(phba); |
| out_free_iocb_list: |
| lpfc_free_iocb_list(phba); |
| out_unset_driver_resource_s3: |
| lpfc_sli_driver_resource_unset(phba); |
| out_unset_pci_mem_s3: |
| lpfc_sli_pci_mem_unset(phba); |
| out_disable_pci_dev: |
| lpfc_disable_pci_dev(phba); |
| out_free_phba: |
| lpfc_hba_free(phba); |
| return error; |
| } |
| |
| /** |
| * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. |
| * @pdev: pointer to PCI device |
| * |
| * This routine is to be called to disattach a device with SLI-3 interface |
| * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is |
| * removed from PCI bus, it performs all the necessary cleanup for the HBA |
| * device to be removed from the PCI subsystem properly. |
| **/ |
| static void __devexit |
| lpfc_pci_remove_one_s3(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_vport **vports; |
| struct lpfc_hba *phba = vport->phba; |
| int i; |
| int bars = pci_select_bars(pdev, IORESOURCE_MEM); |
| |
| spin_lock_irq(&phba->hbalock); |
| vport->load_flag |= FC_UNLOADING; |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_free_sysfs_attr(vport); |
| |
| /* Release all the vports against this physical port */ |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) |
| fc_vport_terminate(vports[i]->fc_vport); |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| /* Remove FC host and then SCSI host with the physical port */ |
| fc_remove_host(shost); |
| scsi_remove_host(shost); |
| lpfc_cleanup(vport); |
| |
| /* |
| * Bring down the SLI Layer. This step disable all interrupts, |
| * clears the rings, discards all mailbox commands, and resets |
| * the HBA. |
| */ |
| |
| /* HBA interrupt will be diabled after this call */ |
| lpfc_sli_hba_down(phba); |
| /* Stop kthread signal shall trigger work_done one more time */ |
| kthread_stop(phba->worker_thread); |
| /* Final cleanup of txcmplq and reset the HBA */ |
| lpfc_sli_brdrestart(phba); |
| |
| lpfc_stop_hba_timers(phba); |
| spin_lock_irq(&phba->hbalock); |
| list_del_init(&vport->listentry); |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_debugfs_terminate(vport); |
| |
| /* Disable interrupt */ |
| lpfc_sli_disable_intr(phba); |
| |
| pci_set_drvdata(pdev, NULL); |
| scsi_host_put(shost); |
| |
| /* |
| * Call scsi_free before mem_free since scsi bufs are released to their |
| * corresponding pools here. |
| */ |
| lpfc_scsi_free(phba); |
| lpfc_mem_free_all(phba); |
| |
| dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), |
| phba->hbqslimp.virt, phba->hbqslimp.phys); |
| |
| /* Free resources associated with SLI2 interface */ |
| dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, |
| phba->slim2p.virt, phba->slim2p.phys); |
| |
| /* unmap adapter SLIM and Control Registers */ |
| iounmap(phba->ctrl_regs_memmap_p); |
| iounmap(phba->slim_memmap_p); |
| |
| lpfc_hba_free(phba); |
| |
| pci_release_selected_regions(pdev, bars); |
| pci_disable_device(pdev); |
| } |
| |
| /** |
| * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt |
| * @pdev: pointer to PCI device |
| * @msg: power management message |
| * |
| * This routine is to be called from the kernel's PCI subsystem to support |
| * system Power Management (PM) to device with SLI-3 interface spec. When |
| * PM invokes this method, it quiesces the device by stopping the driver's |
| * worker thread for the device, turning off device's interrupt and DMA, |
| * and bring the device offline. Note that as the driver implements the |
| * minimum PM requirements to a power-aware driver's PM support for the |
| * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) |
| * to the suspend() method call will be treated as SUSPEND and the driver will |
| * fully reinitialize its device during resume() method call, the driver will |
| * set device to PCI_D3hot state in PCI config space instead of setting it |
| * according to the @msg provided by the PM. |
| * |
| * Return code |
| * 0 - driver suspended the device |
| * Error otherwise |
| **/ |
| static int |
| lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0473 PCI device Power Management suspend.\n"); |
| |
| /* Bring down the device */ |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| kthread_stop(phba->worker_thread); |
| |
| /* Disable interrupt from device */ |
| lpfc_sli_disable_intr(phba); |
| |
| /* Save device state to PCI config space */ |
| pci_save_state(pdev); |
| pci_set_power_state(pdev, PCI_D3hot); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt |
| * @pdev: pointer to PCI device |
| * |
| * This routine is to be called from the kernel's PCI subsystem to support |
| * system Power Management (PM) to device with SLI-3 interface spec. When PM |
| * invokes this method, it restores the device's PCI config space state and |
| * fully reinitializes the device and brings it online. Note that as the |
| * driver implements the minimum PM requirements to a power-aware driver's |
| * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, |
| * FREEZE) to the suspend() method call will be treated as SUSPEND and the |
| * driver will fully reinitialize its device during resume() method call, |
| * the device will be set to PCI_D0 directly in PCI config space before |
| * restoring the state. |
| * |
| * Return code |
| * 0 - driver suspended the device |
| * Error otherwise |
| **/ |
| static int |
| lpfc_pci_resume_one_s3(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| uint32_t intr_mode; |
| int error; |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0452 PCI device Power Management resume.\n"); |
| |
| /* Restore device state from PCI config space */ |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| if (pdev->is_busmaster) |
| pci_set_master(pdev); |
| |
| /* Startup the kernel thread for this host adapter. */ |
| phba->worker_thread = kthread_run(lpfc_do_work, phba, |
| "lpfc_worker_%d", phba->brd_no); |
| if (IS_ERR(phba->worker_thread)) { |
| error = PTR_ERR(phba->worker_thread); |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0434 PM resume failed to start worker " |
| "thread: error=x%x.\n", error); |
| return error; |
| } |
| |
| /* Configure and enable interrupt */ |
| intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0430 PM resume Failed to enable interrupt\n"); |
| return -EIO; |
| } else |
| phba->intr_mode = intr_mode; |
| |
| /* Restart HBA and bring it online */ |
| lpfc_sli_brdrestart(phba); |
| lpfc_online(phba); |
| |
| /* Log the current active interrupt mode */ |
| lpfc_log_intr_mode(phba, phba->intr_mode); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error |
| * @pdev: pointer to PCI device. |
| * @state: the current PCI connection state. |
| * |
| * This routine is called from the PCI subsystem for I/O error handling to |
| * device with SLI-3 interface spec. This function is called by the PCI |
| * subsystem after a PCI bus error affecting this device has been detected. |
| * When this function is invoked, it will need to stop all the I/Os and |
| * interrupt(s) to the device. Once that is done, it will return |
| * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery |
| * as desired. |
| * |
| * Return codes |
| * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery |
| * PCI_ERS_RESULT_DISCONNECT - device could not be recovered |
| **/ |
| static pci_ers_result_t |
| lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| |
| if (state == pci_channel_io_perm_failure) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0472 PCI channel I/O permanent failure\n"); |
| /* Block all SCSI devices' I/Os on the host */ |
| lpfc_scsi_dev_block(phba); |
| /* Clean up all driver's outstanding SCSI I/Os */ |
| lpfc_sli_flush_fcp_rings(phba); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| pci_disable_device(pdev); |
| /* |
| * There may be 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); |
| |
| /* Disable interrupt */ |
| lpfc_sli_disable_intr(phba); |
| |
| /* Request a slot reset. */ |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| /** |
| * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. |
| * @pdev: pointer to PCI device. |
| * |
| * This routine is called from the PCI subsystem for error handling to |
| * device with SLI-3 interface spec. This is called after PCI bus has been |
| * reset to restart the PCI card from scratch, as if from a cold-boot. |
| * During the PCI subsystem error recovery, after driver returns |
| * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error |
| * recovery and then call this routine before calling the .resume method |
| * to recover the device. This function will initialize the HBA device, |
| * enable the interrupt, but it will just put the HBA to offline state |
| * without passing any I/O traffic. |
| * |
| * Return codes |
| * PCI_ERS_RESULT_RECOVERED - the device has been recovered |
| * PCI_ERS_RESULT_DISCONNECT - device could not be recovered |
| */ |
| static pci_ers_result_t |
| lpfc_io_slot_reset_s3(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| struct lpfc_sli *psli = &phba->sli; |
| uint32_t intr_mode; |
| |
| dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); |
| if (pci_enable_device_mem(pdev)) { |
| printk(KERN_ERR "lpfc: Cannot re-enable " |
| "PCI device after reset.\n"); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| pci_restore_state(pdev); |
| if (pdev->is_busmaster) |
| pci_set_master(pdev); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Configure and enable interrupt */ |
| intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0427 Cannot re-enable interrupt after " |
| "slot reset.\n"); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } else |
| phba->intr_mode = intr_mode; |
| |
| /* Take device offline; this will perform cleanup */ |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| |
| /* Log the current active interrupt mode */ |
| lpfc_log_intr_mode(phba, phba->intr_mode); |
| |
| return PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| /** |
| * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. |
| * @pdev: pointer to PCI device |
| * |
| * This routine is called from the PCI subsystem for error handling to device |
| * with SLI-3 interface spec. It is called when kernel error recovery tells |
| * the lpfc driver that it is ok to resume normal PCI operation after PCI bus |
| * error recovery. After this call, traffic can start to flow from this device |
| * again. |
| */ |
| static void |
| lpfc_io_resume_s3(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| |
| lpfc_online(phba); |
| } |
| |
| /** |
| * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem |
| * @pdev: pointer to PCI device |
| * @pid: pointer to PCI device identifier |
| * |
| * This routine is to be registered to the kernel's PCI subsystem. When an |
| * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks |
| * at PCI device-specific information of the device and driver to see if the |
| * driver state that it can support this kind of device. If the match is |
| * successful, the driver core invokes this routine. This routine dispatches |
| * the action to the proper SLI-3 or SLI-4 device probing routine, which will |
| * do all the initialization that it needs to do to handle the HBA device |
| * properly. |
| * |
| * Return code |
| * 0 - driver can claim the device |
| * negative value - driver can not claim the device |
| **/ |
| static int __devinit |
| lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) |
| { |
| int rc; |
| uint16_t dev_id; |
| |
| if (pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id)) |
| return -ENODEV; |
| |
| switch (dev_id) { |
| default: |
| rc = lpfc_pci_probe_one_s3(pdev, pid); |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem |
| * @pdev: pointer to PCI device |
| * |
| * This routine is to be registered to the kernel's PCI subsystem. When an |
| * Emulex HBA is removed from PCI bus, the driver core invokes this routine. |
| * This routine dispatches the action to the proper SLI-3 or SLI-4 device |
| * remove routine, which will perform all the necessary cleanup for the |
| * device to be removed from the PCI subsystem properly. |
| **/ |
| static void __devexit |
| lpfc_pci_remove_one(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| lpfc_pci_remove_one_s3(pdev); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1424 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management |
| * @pdev: pointer to PCI device |
| * @msg: power management message |
| * |
| * This routine is to be registered to the kernel's PCI subsystem to support |
| * system Power Management (PM). When PM invokes this method, it dispatches |
| * the action to the proper SLI-3 or SLI-4 device suspend routine, which will |
| * suspend the device. |
| * |
| * Return code |
| * 0 - driver suspended the device |
| * Error otherwise |
| **/ |
| static int |
| lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| int rc = -ENODEV; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| rc = lpfc_pci_suspend_one_s3(pdev, msg); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1425 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management |
| * @pdev: pointer to PCI device |
| * |
| * This routine is to be registered to the kernel's PCI subsystem to support |
| * system Power Management (PM). When PM invokes this method, it dispatches |
| * the action to the proper SLI-3 or SLI-4 device resume routine, which will |
| * resume the device. |
| * |
| * Return code |
| * 0 - driver suspended the device |
| * Error otherwise |
| **/ |
| static int |
| lpfc_pci_resume_one(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| int rc = -ENODEV; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| rc = lpfc_pci_resume_one_s3(pdev); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1426 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_io_error_detected - lpfc method for handling PCI I/O error |
| * @pdev: pointer to PCI device. |
| * @state: the current PCI connection state. |
| * |
| * This routine is registered to the PCI subsystem for error handling. This |
| * function is called by the PCI subsystem after a PCI bus error affecting |
| * this device has been detected. When this routine is invoked, it dispatches |
| * the action to the proper SLI-3 or SLI-4 device error detected handling |
| * routine, which will perform the proper error detected operation. |
| * |
| * Return codes |
| * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery |
| * PCI_ERS_RESULT_DISCONNECT - device could not be recovered |
| **/ |
| static pci_ers_result_t |
| lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| rc = lpfc_io_error_detected_s3(pdev, state); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1427 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch |
| * @pdev: pointer to PCI device. |
| * |
| * This routine is registered to the PCI subsystem for error handling. This |
| * function is called after PCI bus has been reset to restart the PCI card |
| * from scratch, as if from a cold-boot. When this routine is invoked, it |
| * dispatches the action to the proper SLI-3 or SLI-4 device reset handling |
| * routine, which will perform the proper device reset. |
| * |
| * Return codes |
| * PCI_ERS_RESULT_RECOVERED - the device has been recovered |
| * PCI_ERS_RESULT_DISCONNECT - device could not be recovered |
| **/ |
| static pci_ers_result_t |
| lpfc_io_slot_reset(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| rc = lpfc_io_slot_reset_s3(pdev); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1428 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_io_resume - lpfc method for resuming PCI I/O operation |
| * @pdev: pointer to PCI device |
| * |
| * This routine is registered to the PCI subsystem for error handling. It |
| * is called when kernel error recovery tells the lpfc driver that it is |
| * OK to resume normal PCI operation after PCI bus error recovery. When |
| * this routine is invoked, it dispatches the action to the proper SLI-3 |
| * or SLI-4 device io_resume routine, which will resume the device operation. |
| **/ |
| static void |
| lpfc_io_resume(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| |
| switch (phba->pci_dev_grp) { |
| case LPFC_PCI_DEV_LP: |
| lpfc_io_resume_s3(pdev); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1429 Invalid PCI device group: 0x%x\n", |
| phba->pci_dev_grp); |
| break; |
| } |
| return; |
| } |
| |
| static struct pci_device_id lpfc_id_table[] = { |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK_S, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| { 0 } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, lpfc_id_table); |
| |
| static struct pci_error_handlers lpfc_err_handler = { |
| .error_detected = lpfc_io_error_detected, |
| .slot_reset = lpfc_io_slot_reset, |
| .resume = lpfc_io_resume, |
| }; |
| |
| static struct pci_driver lpfc_driver = { |
| .name = LPFC_DRIVER_NAME, |
| .id_table = lpfc_id_table, |
| .probe = lpfc_pci_probe_one, |
| .remove = __devexit_p(lpfc_pci_remove_one), |
| .suspend = lpfc_pci_suspend_one, |
| .resume = lpfc_pci_resume_one, |
| .err_handler = &lpfc_err_handler, |
| }; |
| |
| /** |
| * lpfc_init - lpfc module initialization routine |
| * |
| * This routine is to be invoked when the lpfc module is loaded into the |
| * kernel. The special kernel macro module_init() is used to indicate the |
| * role of this routine to the kernel as lpfc module entry point. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - FC attach transport failed |
| * all others - failed |
| */ |
| static int __init |
| lpfc_init(void) |
| { |
| int error = 0; |
| |
| printk(LPFC_MODULE_DESC "\n"); |
| printk(LPFC_COPYRIGHT "\n"); |
| |
| if (lpfc_enable_npiv) { |
| lpfc_transport_functions.vport_create = lpfc_vport_create; |
| lpfc_transport_functions.vport_delete = lpfc_vport_delete; |
| } |
| lpfc_transport_template = |
| fc_attach_transport(&lpfc_transport_functions); |
| if (lpfc_transport_template == NULL) |
| return -ENOMEM; |
| if (lpfc_enable_npiv) { |
| lpfc_vport_transport_template = |
| fc_attach_transport(&lpfc_vport_transport_functions); |
| if (lpfc_vport_transport_template == NULL) { |
| fc_release_transport(lpfc_transport_template); |
| return -ENOMEM; |
| } |
| } |
| error = pci_register_driver(&lpfc_driver); |
| if (error) { |
| fc_release_transport(lpfc_transport_template); |
| if (lpfc_enable_npiv) |
| fc_release_transport(lpfc_vport_transport_template); |
| } |
| |
| return error; |
| } |
| |
| /** |
| * lpfc_exit - lpfc module removal routine |
| * |
| * This routine is invoked when the lpfc module is removed from the kernel. |
| * The special kernel macro module_exit() is used to indicate the role of |
| * this routine to the kernel as lpfc module exit point. |
| */ |
| static void __exit |
| lpfc_exit(void) |
| { |
| pci_unregister_driver(&lpfc_driver); |
| fc_release_transport(lpfc_transport_template); |
| if (lpfc_enable_npiv) |
| fc_release_transport(lpfc_vport_transport_template); |
| if (_dump_buf_data) { |
| printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " |
| "at 0x%p\n", |
| (1L << _dump_buf_data_order), _dump_buf_data); |
| free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); |
| } |
| |
| if (_dump_buf_dif) { |
| printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " |
| "at 0x%p\n", |
| (1L << _dump_buf_dif_order), _dump_buf_dif); |
| free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); |
| } |
| } |
| |
| module_init(lpfc_init); |
| module_exit(lpfc_exit); |
| MODULE_LICENSE("GPL"); |
| MODULE_DESCRIPTION(LPFC_MODULE_DESC); |
| MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); |
| MODULE_VERSION("0:" LPFC_DRIVER_VERSION); |