| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2004-2012 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.emulex.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <linux/blkdev.h> |
| #include <linux/delay.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/idr.h> |
| #include <linux/interrupt.h> |
| #include <linux/module.h> |
| #include <linux/kthread.h> |
| #include <linux/pci.h> |
| #include <linux/spinlock.h> |
| #include <linux/ctype.h> |
| #include <linux/aer.h> |
| #include <linux/slab.h> |
| #include <linux/firmware.h> |
| #include <linux/miscdevice.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| #include "lpfc_hw4.h" |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_sli4.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_version.h" |
| |
| char *_dump_buf_data; |
| unsigned long _dump_buf_data_order; |
| char *_dump_buf_dif; |
| unsigned long _dump_buf_dif_order; |
| spinlock_t _dump_buf_lock; |
| |
| static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); |
| static int lpfc_post_rcv_buf(struct lpfc_hba *); |
| static int lpfc_sli4_queue_verify(struct lpfc_hba *); |
| static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); |
| static int lpfc_setup_endian_order(struct lpfc_hba *); |
| static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); |
| static void lpfc_free_els_sgl_list(struct lpfc_hba *); |
| static void lpfc_init_sgl_list(struct lpfc_hba *); |
| static int lpfc_init_active_sgl_array(struct lpfc_hba *); |
| static void lpfc_free_active_sgl(struct lpfc_hba *); |
| static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); |
| static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); |
| static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); |
| static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); |
| static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); |
| |
| static struct scsi_transport_template *lpfc_transport_template = NULL; |
| static struct scsi_transport_template *lpfc_vport_transport_template = NULL; |
| static DEFINE_IDR(lpfc_hba_index); |
| |
| /** |
| * lpfc_config_port_prep - Perform lpfc initialization prior to config port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine will do LPFC initialization prior to issuing the CONFIG_PORT |
| * mailbox command. It retrieves the revision information from the HBA and |
| * collects the Vital Product Data (VPD) about the HBA for preparing the |
| * configuration of the HBA. |
| * |
| * Return codes: |
| * 0 - success. |
| * -ERESTART - requests the SLI layer to reset the HBA and try again. |
| * Any other value - indicates an error. |
| **/ |
| int |
| lpfc_config_port_prep(struct lpfc_hba *phba) |
| { |
| lpfc_vpd_t *vp = &phba->vpd; |
| int i = 0, rc; |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| char *lpfc_vpd_data = NULL; |
| uint16_t offset = 0; |
| static char licensed[56] = |
| "key unlock for use with gnu public licensed code only\0"; |
| static int init_key = 1; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| mb = &pmb->u.mb; |
| phba->link_state = LPFC_INIT_MBX_CMDS; |
| |
| if (lpfc_is_LC_HBA(phba->pcidev->device)) { |
| if (init_key) { |
| uint32_t *ptext = (uint32_t *) licensed; |
| |
| for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) |
| *ptext = cpu_to_be32(*ptext); |
| init_key = 0; |
| } |
| |
| lpfc_read_nv(phba, pmb); |
| memset((char*)mb->un.varRDnvp.rsvd3, 0, |
| sizeof (mb->un.varRDnvp.rsvd3)); |
| memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, |
| sizeof (licensed)); |
| |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
| "0324 Config Port initialization " |
| "error, mbxCmd x%x READ_NVPARM, " |
| "mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, |
| sizeof(phba->wwnn)); |
| memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, |
| sizeof(phba->wwpn)); |
| } |
| |
| phba->sli3_options = 0x0; |
| |
| /* Setup and issue mailbox READ REV command */ |
| lpfc_read_rev(phba, pmb); |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0439 Adapter failed to init, mbxCmd x%x " |
| "READ_REV, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mempool_free( pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| |
| |
| /* |
| * The value of rr must be 1 since the driver set the cv field to 1. |
| * This setting requires the FW to set all revision fields. |
| */ |
| if (mb->un.varRdRev.rr == 0) { |
| vp->rev.rBit = 0; |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0440 Adapter failed to init, READ_REV has " |
| "missing revision information.\n"); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| |
| if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EINVAL; |
| } |
| |
| /* Save information as VPD data */ |
| vp->rev.rBit = 1; |
| memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); |
| vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; |
| memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); |
| vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; |
| memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); |
| vp->rev.biuRev = mb->un.varRdRev.biuRev; |
| vp->rev.smRev = mb->un.varRdRev.smRev; |
| vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; |
| vp->rev.endecRev = mb->un.varRdRev.endecRev; |
| vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; |
| vp->rev.fcphLow = mb->un.varRdRev.fcphLow; |
| vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; |
| vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; |
| vp->rev.postKernRev = mb->un.varRdRev.postKernRev; |
| vp->rev.opFwRev = mb->un.varRdRev.opFwRev; |
| |
| /* If the sli feature level is less then 9, we must |
| * tear down all RPIs and VPIs on link down if NPIV |
| * is enabled. |
| */ |
| if (vp->rev.feaLevelHigh < 9) |
| phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; |
| |
| if (lpfc_is_LC_HBA(phba->pcidev->device)) |
| memcpy(phba->RandomData, (char *)&mb->un.varWords[24], |
| sizeof (phba->RandomData)); |
| |
| /* Get adapter VPD information */ |
| lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); |
| if (!lpfc_vpd_data) |
| goto out_free_mbox; |
| do { |
| lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0441 VPD not present on adapter, " |
| "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mb->un.varDmp.word_cnt = 0; |
| } |
| /* dump mem may return a zero when finished or we got a |
| * mailbox error, either way we are done. |
| */ |
| if (mb->un.varDmp.word_cnt == 0) |
| break; |
| if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) |
| mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; |
| lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, |
| lpfc_vpd_data + offset, |
| mb->un.varDmp.word_cnt); |
| offset += mb->un.varDmp.word_cnt; |
| } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); |
| lpfc_parse_vpd(phba, lpfc_vpd_data, offset); |
| |
| kfree(lpfc_vpd_data); |
| out_free_mbox: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return 0; |
| } |
| |
| /** |
| * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the completion handler for driver's configuring asynchronous event |
| * mailbox command to the device. If the mailbox command returns successfully, |
| * it will set internal async event support flag to 1; otherwise, it will |
| * set internal async event support flag to 0. |
| **/ |
| static void |
| lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) |
| { |
| if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) |
| phba->temp_sensor_support = 1; |
| else |
| phba->temp_sensor_support = 0; |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the completion handler for dump mailbox command for getting |
| * wake up parameters. When this command complete, the response contain |
| * Option rom version of the HBA. This function translate the version number |
| * into a human readable string and store it in OptionROMVersion. |
| **/ |
| static void |
| lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| { |
| struct prog_id *prg; |
| uint32_t prog_id_word; |
| char dist = ' '; |
| /* character array used for decoding dist type. */ |
| char dist_char[] = "nabx"; |
| |
| if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| prg = (struct prog_id *) &prog_id_word; |
| |
| /* word 7 contain option rom version */ |
| prog_id_word = pmboxq->u.mb.un.varWords[7]; |
| |
| /* Decode the Option rom version word to a readable string */ |
| if (prg->dist < 4) |
| dist = dist_char[prg->dist]; |
| |
| if ((prg->dist == 3) && (prg->num == 0)) |
| sprintf(phba->OptionROMVersion, "%d.%d%d", |
| prg->ver, prg->rev, prg->lev); |
| else |
| sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", |
| prg->ver, prg->rev, prg->lev, |
| dist, prg->num); |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, |
| * cfg_soft_wwnn, cfg_soft_wwpn |
| * @vport: pointer to lpfc vport data structure. |
| * |
| * |
| * Return codes |
| * None. |
| **/ |
| void |
| lpfc_update_vport_wwn(struct lpfc_vport *vport) |
| { |
| /* If the soft name exists then update it using the service params */ |
| if (vport->phba->cfg_soft_wwnn) |
| u64_to_wwn(vport->phba->cfg_soft_wwnn, |
| vport->fc_sparam.nodeName.u.wwn); |
| if (vport->phba->cfg_soft_wwpn) |
| u64_to_wwn(vport->phba->cfg_soft_wwpn, |
| vport->fc_sparam.portName.u.wwn); |
| |
| /* |
| * If the name is empty or there exists a soft name |
| * then copy the service params name, otherwise use the fc name |
| */ |
| if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) |
| memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
| sizeof(struct lpfc_name)); |
| else |
| memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, |
| sizeof(struct lpfc_name)); |
| |
| if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) |
| memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
| sizeof(struct lpfc_name)); |
| else |
| memcpy(&vport->fc_sparam.portName, &vport->fc_portname, |
| sizeof(struct lpfc_name)); |
| } |
| |
| /** |
| * lpfc_config_port_post - Perform lpfc initialization after config port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine will do LPFC initialization after the CONFIG_PORT mailbox |
| * command call. It performs all internal resource and state setups on the |
| * port: post IOCB buffers, enable appropriate host interrupt attentions, |
| * ELS ring timers, etc. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_config_port_post(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| struct lpfc_dmabuf *mp; |
| struct lpfc_sli *psli = &phba->sli; |
| uint32_t status, timeout; |
| int i, j; |
| int rc; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* |
| * If the Config port completed correctly the HBA is not |
| * over heated any more. |
| */ |
| if (phba->over_temp_state == HBA_OVER_TEMP) |
| phba->over_temp_state = HBA_NORMAL_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| mb = &pmb->u.mb; |
| |
| /* Get login parameters for NID. */ |
| rc = lpfc_read_sparam(phba, pmb, 0); |
| if (rc) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ENOMEM; |
| } |
| |
| pmb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0448 Adapter failed init, mbxCmd x%x " |
| "READ_SPARM mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| phba->link_state = LPFC_HBA_ERROR; |
| mp = (struct lpfc_dmabuf *) pmb->context1; |
| mempool_free(pmb, phba->mbox_mem_pool); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| return -EIO; |
| } |
| |
| mp = (struct lpfc_dmabuf *) pmb->context1; |
| |
| memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| pmb->context1 = NULL; |
| lpfc_update_vport_wwn(vport); |
| |
| /* Update the fc_host data structures with new wwn. */ |
| fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); |
| fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); |
| fc_host_max_npiv_vports(shost) = phba->max_vpi; |
| |
| /* If no serial number in VPD data, use low 6 bytes of WWNN */ |
| /* This should be consolidated into parse_vpd ? - mr */ |
| if (phba->SerialNumber[0] == 0) { |
| uint8_t *outptr; |
| |
| outptr = &vport->fc_nodename.u.s.IEEE[0]; |
| for (i = 0; i < 12; i++) { |
| status = *outptr++; |
| j = ((status & 0xf0) >> 4); |
| if (j <= 9) |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x30 + (uint8_t) j); |
| else |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); |
| i++; |
| j = (status & 0xf); |
| if (j <= 9) |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x30 + (uint8_t) j); |
| else |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); |
| } |
| } |
| |
| lpfc_read_config(phba, pmb); |
| pmb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0453 Adapter failed to init, mbxCmd x%x " |
| "READ_CONFIG, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| phba->link_state = LPFC_HBA_ERROR; |
| mempool_free( pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| |
| /* Check if the port is disabled */ |
| lpfc_sli_read_link_ste(phba); |
| |
| /* Reset the DFT_HBA_Q_DEPTH to the max xri */ |
| if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) |
| phba->cfg_hba_queue_depth = |
| (mb->un.varRdConfig.max_xri + 1) - |
| lpfc_sli4_get_els_iocb_cnt(phba); |
| |
| phba->lmt = mb->un.varRdConfig.lmt; |
| |
| /* Get the default values for Model Name and Description */ |
| lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); |
| |
| phba->link_state = LPFC_LINK_DOWN; |
| |
| /* Only process IOCBs on ELS ring till hba_state is READY */ |
| if (psli->ring[psli->extra_ring].cmdringaddr) |
| psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; |
| if (psli->ring[psli->fcp_ring].cmdringaddr) |
| psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; |
| if (psli->ring[psli->next_ring].cmdringaddr) |
| psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; |
| |
| /* Post receive buffers for desired rings */ |
| if (phba->sli_rev != 3) |
| lpfc_post_rcv_buf(phba); |
| |
| /* |
| * Configure HBA MSI-X attention conditions to messages if MSI-X mode |
| */ |
| if (phba->intr_type == MSIX) { |
| rc = lpfc_config_msi(phba, pmb); |
| if (rc) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
| "0352 Config MSI mailbox command " |
| "failed, mbxCmd x%x, mbxStatus x%x\n", |
| pmb->u.mb.mbxCommand, |
| pmb->u.mb.mbxStatus); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| /* Initialize ERATT handling flag */ |
| phba->hba_flag &= ~HBA_ERATT_HANDLED; |
| |
| /* Enable appropriate host interrupts */ |
| if (lpfc_readl(phba->HCregaddr, &status)) { |
| spin_unlock_irq(&phba->hbalock); |
| return -EIO; |
| } |
| status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; |
| if (psli->num_rings > 0) |
| status |= HC_R0INT_ENA; |
| if (psli->num_rings > 1) |
| status |= HC_R1INT_ENA; |
| if (psli->num_rings > 2) |
| status |= HC_R2INT_ENA; |
| if (psli->num_rings > 3) |
| status |= HC_R3INT_ENA; |
| |
| if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && |
| (phba->cfg_poll & DISABLE_FCP_RING_INT)) |
| status &= ~(HC_R0INT_ENA); |
| |
| writel(status, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Set up ring-0 (ELS) timer */ |
| timeout = phba->fc_ratov * 2; |
| mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); |
| /* Set up heart beat (HB) timer */ |
| mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); |
| phba->hb_outstanding = 0; |
| phba->last_completion_time = jiffies; |
| /* Set up error attention (ERATT) polling timer */ |
| mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); |
| |
| if (phba->hba_flag & LINK_DISABLED) { |
| lpfc_printf_log(phba, |
| KERN_ERR, LOG_INIT, |
| "2598 Adapter Link is disabled.\n"); |
| lpfc_down_link(phba, pmb); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { |
| lpfc_printf_log(phba, |
| KERN_ERR, LOG_INIT, |
| "2599 Adapter failed to issue DOWN_LINK" |
| " mbox command rc 0x%x\n", rc); |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); |
| if (rc) |
| return rc; |
| } |
| /* MBOX buffer will be freed in mbox compl */ |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_config_async(phba, pmb, LPFC_ELS_RING); |
| pmb->mbox_cmpl = lpfc_config_async_cmpl; |
| pmb->vport = phba->pport; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, |
| KERN_ERR, |
| LOG_INIT, |
| "0456 Adapter failed to issue " |
| "ASYNCEVT_ENABLE mbox status x%x\n", |
| rc); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| /* Get Option rom version */ |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_dump_wakeup_param(phba, pmb); |
| pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; |
| pmb->vport = phba->pport; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " |
| "to get Option ROM version status x%x\n", rc); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_init_link - Initialize the FC link |
| * @phba: pointer to lpfc hba data structure. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the INIT_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use as a delayed link up mechanism with the |
| * module parameter lpfc_suppress_link_up. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| int |
| lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) |
| { |
| return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); |
| } |
| |
| /** |
| * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology |
| * @phba: pointer to lpfc hba data structure. |
| * @fc_topology: desired fc topology. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the INIT_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use as a delayed link up mechanism with the |
| * module parameter lpfc_suppress_link_up. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| int |
| lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, |
| uint32_t flag) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| int rc; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| mb = &pmb->u.mb; |
| pmb->vport = vport; |
| |
| if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && |
| !(phba->lmt & LMT_1Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && |
| !(phba->lmt & LMT_2Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && |
| !(phba->lmt & LMT_4Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && |
| !(phba->lmt & LMT_8Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && |
| !(phba->lmt & LMT_10Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && |
| !(phba->lmt & LMT_16Gb))) { |
| /* Reset link speed to auto */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1302 Invalid speed for this board:%d " |
| "Reset link speed to auto.\n", |
| phba->cfg_link_speed); |
| phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; |
| } |
| lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| lpfc_set_loopback_flag(phba); |
| rc = lpfc_sli_issue_mbox(phba, pmb, flag); |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0498 Adapter failed to init, mbxCmd x%x " |
| "INIT_LINK, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| /* Clear all interrupt enable conditions */ |
| writel(0, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| /* Clear all pending interrupts */ |
| writel(0xffffffff, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| } |
| phba->link_state = LPFC_HBA_ERROR; |
| if (rc != MBX_BUSY || flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; |
| if (flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_link - this routine downs the FC link |
| * @phba: pointer to lpfc hba data structure. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the DOWN_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use to stop the link. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| int |
| lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) |
| { |
| LPFC_MBOXQ_t *pmb; |
| int rc; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_printf_log(phba, |
| KERN_ERR, LOG_INIT, |
| "0491 Adapter Link is disabled.\n"); |
| lpfc_down_link(phba, pmb); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, pmb, flag); |
| if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { |
| lpfc_printf_log(phba, |
| KERN_ERR, LOG_INIT, |
| "2522 Adapter failed to issue DOWN_LINK" |
| " mbox command rc 0x%x\n", rc); |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| if (flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do LPFC uninitialization before the HBA is reset when |
| * bringing down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_hba_down_prep(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| /* Disable interrupts */ |
| writel(0, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } |
| |
| if (phba->pport->load_flag & FC_UNLOADING) |
| lpfc_cleanup_discovery_resources(phba->pport); |
| else { |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && |
| vports[i] != NULL; i++) |
| lpfc_cleanup_discovery_resources(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do uninitialization after the HBA is reset when bring |
| * down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| static int |
| lpfc_hba_down_post_s3(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| struct lpfc_dmabuf *mp, *next_mp; |
| LIST_HEAD(completions); |
| int i; |
| |
| if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
| lpfc_sli_hbqbuf_free_all(phba); |
| else { |
| /* Cleanup preposted buffers on the ELS ring */ |
| pring = &psli->ring[LPFC_ELS_RING]; |
| list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
| list_del(&mp->list); |
| pring->postbufq_cnt--; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| for (i = 0; i < psli->num_rings; i++) { |
| pring = &psli->ring[i]; |
| |
| /* At this point in time the HBA is either reset or DOA. Either |
| * way, nothing should be on txcmplq as it will NEVER complete. |
| */ |
| list_splice_init(&pring->txcmplq, &completions); |
| pring->txcmplq_cnt = 0; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| spin_lock_irq(&phba->hbalock); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do uninitialization after the HBA is reset when bring |
| * down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| static int |
| lpfc_hba_down_post_s4(struct lpfc_hba *phba) |
| { |
| struct lpfc_scsi_buf *psb, *psb_next; |
| LIST_HEAD(aborts); |
| int ret; |
| unsigned long iflag = 0; |
| struct lpfc_sglq *sglq_entry = NULL; |
| |
| ret = lpfc_hba_down_post_s3(phba); |
| if (ret) |
| return ret; |
| /* At this point in time the HBA is either reset or DOA. Either |
| * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be |
| * on the lpfc_sgl_list so that it can either be freed if the |
| * driver is unloading or reposted if the driver is restarting |
| * the port. |
| */ |
| spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ |
| /* scsl_buf_list */ |
| /* abts_sgl_list_lock required because worker thread uses this |
| * list. |
| */ |
| spin_lock(&phba->sli4_hba.abts_sgl_list_lock); |
| list_for_each_entry(sglq_entry, |
| &phba->sli4_hba.lpfc_abts_els_sgl_list, list) |
| sglq_entry->state = SGL_FREED; |
| |
| list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, |
| &phba->sli4_hba.lpfc_sgl_list); |
| spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); |
| /* abts_scsi_buf_list_lock required because worker thread uses this |
| * list. |
| */ |
| spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
| list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, |
| &aborts); |
| spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
| spin_unlock_irq(&phba->hbalock); |
| |
| list_for_each_entry_safe(psb, psb_next, &aborts, list) { |
| psb->pCmd = NULL; |
| psb->status = IOSTAT_SUCCESS; |
| } |
| spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); |
| list_splice(&aborts, &phba->lpfc_scsi_buf_list); |
| spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_post - Wrapper func for hba down post routine |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine wraps the actual SLI3 or SLI4 routine for performing |
| * uninitialization after the HBA is reset when bring down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_hba_down_post(struct lpfc_hba *phba) |
| { |
| return (*phba->lpfc_hba_down_post)(phba); |
| } |
| |
| /** |
| * lpfc_hb_timeout - The HBA-timer timeout handler |
| * @ptr: unsigned long holds the pointer to lpfc hba data structure. |
| * |
| * This is the HBA-timer timeout handler registered to the lpfc driver. When |
| * this timer fires, a HBA timeout event shall be posted to the lpfc driver |
| * work-port-events bitmap and the worker thread is notified. This timeout |
| * event will be used by the worker thread to invoke the actual timeout |
| * handler routine, lpfc_hb_timeout_handler. Any periodical operations will |
| * be performed in the timeout handler and the HBA timeout event bit shall |
| * be cleared by the worker thread after it has taken the event bitmap out. |
| **/ |
| static void |
| lpfc_hb_timeout(unsigned long ptr) |
| { |
| struct lpfc_hba *phba; |
| uint32_t tmo_posted; |
| unsigned long iflag; |
| |
| phba = (struct lpfc_hba *)ptr; |
| |
| /* Check for heart beat timeout conditions */ |
| spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
| tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; |
| if (!tmo_posted) |
| phba->pport->work_port_events |= WORKER_HB_TMO; |
| spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); |
| |
| /* Tell the worker thread there is work to do */ |
| if (!tmo_posted) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| |
| /** |
| * lpfc_rrq_timeout - The RRQ-timer timeout handler |
| * @ptr: unsigned long holds the pointer to lpfc hba data structure. |
| * |
| * This is the RRQ-timer timeout handler registered to the lpfc driver. When |
| * this timer fires, a RRQ timeout event shall be posted to the lpfc driver |
| * work-port-events bitmap and the worker thread is notified. This timeout |
| * event will be used by the worker thread to invoke the actual timeout |
| * handler routine, lpfc_rrq_handler. Any periodical operations will |
| * be performed in the timeout handler and the RRQ timeout event bit shall |
| * be cleared by the worker thread after it has taken the event bitmap out. |
| **/ |
| static void |
| lpfc_rrq_timeout(unsigned long ptr) |
| { |
| struct lpfc_hba *phba; |
| unsigned long iflag; |
| |
| phba = (struct lpfc_hba *)ptr; |
| spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
| phba->hba_flag |= HBA_RRQ_ACTIVE; |
| spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); |
| lpfc_worker_wake_up(phba); |
| } |
| |
| /** |
| * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the callback function to the lpfc heart-beat mailbox command. |
| * If configured, the lpfc driver issues the heart-beat mailbox command to |
| * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the |
| * heart-beat mailbox command is issued, the driver shall set up heart-beat |
| * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks |
| * heart-beat outstanding state. Once the mailbox command comes back and |
| * no error conditions detected, the heart-beat mailbox command timer is |
| * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding |
| * state is cleared for the next heart-beat. If the timer expired with the |
| * heart-beat outstanding state set, the driver will put the HBA offline. |
| **/ |
| static void |
| lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) |
| { |
| unsigned long drvr_flag; |
| |
| spin_lock_irqsave(&phba->hbalock, drvr_flag); |
| phba->hb_outstanding = 0; |
| spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
| |
| /* Check and reset heart-beat timer is necessary */ |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && |
| !(phba->link_state == LPFC_HBA_ERROR) && |
| !(phba->pport->load_flag & FC_UNLOADING)) |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_INTERVAL); |
| return; |
| } |
| |
| /** |
| * lpfc_hb_timeout_handler - The HBA-timer timeout handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This is the actual HBA-timer timeout handler to be invoked by the worker |
| * thread whenever the HBA timer fired and HBA-timeout event posted. This |
| * handler performs any periodic operations needed for the device. If such |
| * periodic event has already been attended to either in the interrupt handler |
| * or by processing slow-ring or fast-ring events within the HBA-timer |
| * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets |
| * the timer for the next timeout period. If lpfc heart-beat mailbox command |
| * is configured and there is no heart-beat mailbox command outstanding, a |
| * heart-beat mailbox is issued and timer set properly. Otherwise, if there |
| * has been a heart-beat mailbox command outstanding, the HBA shall be put |
| * to offline. |
| **/ |
| void |
| lpfc_hb_timeout_handler(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| LPFC_MBOXQ_t *pmboxq; |
| struct lpfc_dmabuf *buf_ptr; |
| int retval, i; |
| struct lpfc_sli *psli = &phba->sli; |
| LIST_HEAD(completions); |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) |
| lpfc_rcv_seq_check_edtov(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| if ((phba->link_state == LPFC_HBA_ERROR) || |
| (phba->pport->load_flag & FC_UNLOADING) || |
| (phba->pport->fc_flag & FC_OFFLINE_MODE)) |
| return; |
| |
| spin_lock_irq(&phba->pport->work_port_lock); |
| |
| if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, |
| jiffies)) { |
| spin_unlock_irq(&phba->pport->work_port_lock); |
| if (!phba->hb_outstanding) |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_INTERVAL); |
| else |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); |
| return; |
| } |
| spin_unlock_irq(&phba->pport->work_port_lock); |
| |
| if (phba->elsbuf_cnt && |
| (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&phba->elsbuf, &completions); |
| phba->elsbuf_cnt = 0; |
| phba->elsbuf_prev_cnt = 0; |
| spin_unlock_irq(&phba->hbalock); |
| |
| while (!list_empty(&completions)) { |
| list_remove_head(&completions, buf_ptr, |
| struct lpfc_dmabuf, list); |
| lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| kfree(buf_ptr); |
| } |
| } |
| phba->elsbuf_prev_cnt = phba->elsbuf_cnt; |
| |
| /* If there is no heart beat outstanding, issue a heartbeat command */ |
| if (phba->cfg_enable_hba_heartbeat) { |
| if (!phba->hb_outstanding) { |
| if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && |
| (list_empty(&psli->mboxq))) { |
| pmboxq = mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!pmboxq) { |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + |
| HZ * LPFC_HB_MBOX_INTERVAL); |
| return; |
| } |
| |
| lpfc_heart_beat(phba, pmboxq); |
| pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; |
| pmboxq->vport = phba->pport; |
| retval = lpfc_sli_issue_mbox(phba, pmboxq, |
| MBX_NOWAIT); |
| |
| if (retval != MBX_BUSY && |
| retval != MBX_SUCCESS) { |
| mempool_free(pmboxq, |
| phba->mbox_mem_pool); |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + |
| HZ * LPFC_HB_MBOX_INTERVAL); |
| return; |
| } |
| phba->skipped_hb = 0; |
| phba->hb_outstanding = 1; |
| } else if (time_before_eq(phba->last_completion_time, |
| phba->skipped_hb)) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2857 Last completion time not " |
| " updated in %d ms\n", |
| jiffies_to_msecs(jiffies |
| - phba->last_completion_time)); |
| } else |
| phba->skipped_hb = jiffies; |
| |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); |
| return; |
| } else { |
| /* |
| * If heart beat timeout called with hb_outstanding set |
| * we need to give the hb mailbox cmd a chance to |
| * complete or TMO. |
| */ |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0459 Adapter heartbeat still out" |
| "standing:last compl time was %d ms.\n", |
| jiffies_to_msecs(jiffies |
| - phba->last_completion_time)); |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); |
| } |
| } |
| } |
| |
| /** |
| * lpfc_offline_eratt - Bring lpfc offline on hardware error attention |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to bring the HBA offline when HBA hardware error |
| * other than Port Error 6 has been detected. |
| **/ |
| static void |
| lpfc_offline_eratt(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_offline_prep(phba); |
| |
| lpfc_offline(phba); |
| lpfc_reset_barrier(phba); |
| spin_lock_irq(&phba->hbalock); |
| lpfc_sli_brdreset(phba); |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_hba_down_post(phba); |
| lpfc_sli_brdready(phba, HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to bring a SLI4 HBA offline when HBA hardware error |
| * other than Port Error 6 has been detected. |
| **/ |
| static void |
| lpfc_sli4_offline_eratt(struct lpfc_hba *phba) |
| { |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_sli4_brdreset(phba); |
| lpfc_hba_down_post(phba); |
| lpfc_sli4_post_status_check(phba); |
| lpfc_unblock_mgmt_io(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| } |
| |
| /** |
| * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the deferred HBA hardware error |
| * conditions. This type of error is indicated by HBA by setting ER1 |
| * and another ER bit in the host status register. The driver will |
| * wait until the ER1 bit clears before handling the error condition. |
| **/ |
| static void |
| lpfc_handle_deferred_eratt(struct lpfc_hba *phba) |
| { |
| uint32_t old_host_status = phba->work_hs; |
| struct lpfc_sli_ring *pring; |
| struct lpfc_sli *psli = &phba->sli; |
| |
| /* If the pci channel is offline, ignore possible errors, |
| * since we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0479 Deferred Adapter Hardware Error " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, |
| phba->work_status[0], phba->work_status[1]); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| |
| /* |
| * Firmware stops when it triggred erratt. That could cause the I/Os |
| * dropped by the firmware. Error iocb (I/O) on txcmplq and let the |
| * SCSI layer retry it after re-establishing link. |
| */ |
| pring = &psli->ring[psli->fcp_ring]; |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| |
| /* |
| * There was a firmware error. Take the hba offline and then |
| * attempt to restart it. |
| */ |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| |
| /* Wait for the ER1 bit to clear.*/ |
| while (phba->work_hs & HS_FFER1) { |
| msleep(100); |
| if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { |
| phba->work_hs = UNPLUG_ERR ; |
| break; |
| } |
| /* If driver is unloading let the worker thread continue */ |
| if (phba->pport->load_flag & FC_UNLOADING) { |
| phba->work_hs = 0; |
| break; |
| } |
| } |
| |
| /* |
| * This is to ptrotect against a race condition in which |
| * first write to the host attention register clear the |
| * host status register. |
| */ |
| if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) |
| phba->work_hs = old_host_status & ~HS_FFER1; |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); |
| phba->work_status[1] = readl(phba->MBslimaddr + 0xac); |
| } |
| |
| static void |
| lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) |
| { |
| struct lpfc_board_event_header board_event; |
| struct Scsi_Host *shost; |
| |
| board_event.event_type = FC_REG_BOARD_EVENT; |
| board_event.subcategory = LPFC_EVENT_PORTINTERR; |
| shost = lpfc_shost_from_vport(phba->pport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(board_event), |
| (char *) &board_event, |
| LPFC_NL_VENDOR_ID); |
| } |
| |
| /** |
| * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the following HBA hardware error |
| * conditions: |
| * 1 - HBA error attention interrupt |
| * 2 - DMA ring index out of range |
| * 3 - Mailbox command came back as unknown |
| **/ |
| static void |
| lpfc_handle_eratt_s3(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| uint32_t event_data; |
| unsigned long temperature; |
| struct temp_event temp_event_data; |
| struct Scsi_Host *shost; |
| |
| /* If the pci channel is offline, ignore possible errors, |
| * since we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| /* If resets are disabled then leave the HBA alone and return */ |
| if (!phba->cfg_enable_hba_reset) |
| return; |
| |
| /* Send an internal error event to mgmt application */ |
| lpfc_board_errevt_to_mgmt(phba); |
| |
| if (phba->hba_flag & DEFER_ERATT) |
| lpfc_handle_deferred_eratt(phba); |
| |
| if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { |
| if (phba->work_hs & HS_FFER6) |
| /* Re-establishing Link */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "1301 Re-establishing Link " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, phba->work_status[0], |
| phba->work_status[1]); |
| if (phba->work_hs & HS_FFER8) |
| /* Device Zeroization */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "2861 Host Authentication device " |
| "zeroization Data:x%x x%x x%x\n", |
| phba->work_hs, phba->work_status[0], |
| phba->work_status[1]); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* |
| * Firmware stops when it triggled erratt with HS_FFER6. |
| * That could cause the I/Os dropped by the firmware. |
| * Error iocb (I/O) on txcmplq and let the SCSI layer |
| * retry it after re-establishing link. |
| */ |
| pring = &psli->ring[psli->fcp_ring]; |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| |
| /* |
| * There was a firmware error. Take the hba offline and then |
| * attempt to restart it. |
| */ |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| if (lpfc_online(phba) == 0) { /* Initialize the HBA */ |
| lpfc_unblock_mgmt_io(phba); |
| return; |
| } |
| lpfc_unblock_mgmt_io(phba); |
| } else if (phba->work_hs & HS_CRIT_TEMP) { |
| temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); |
| temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; |
| temp_event_data.event_code = LPFC_CRIT_TEMP; |
| temp_event_data.data = (uint32_t)temperature; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0406 Adapter maximum temperature exceeded " |
| "(%ld), taking this port offline " |
| "Data: x%x x%x x%x\n", |
| temperature, phba->work_hs, |
| phba->work_status[0], phba->work_status[1]); |
| |
| shost = lpfc_shost_from_vport(phba->pport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(temp_event_data), |
| (char *) &temp_event_data, |
| SCSI_NL_VID_TYPE_PCI |
| | PCI_VENDOR_ID_EMULEX); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->over_temp_state = HBA_OVER_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_offline_eratt(phba); |
| |
| } else { |
| /* The if clause above forces this code path when the status |
| * failure is a value other than FFER6. Do not call the offline |
| * twice. This is the adapter hardware error path. |
| */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0457 Adapter Hardware Error " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, |
| phba->work_status[0], phba->work_status[1]); |
| |
| event_data = FC_REG_DUMP_EVENT; |
| shost = lpfc_shost_from_vport(vport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(event_data), (char *) &event_data, |
| SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); |
| |
| lpfc_offline_eratt(phba); |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the SLI4 HBA hardware error attention |
| * conditions. |
| **/ |
| static void |
| lpfc_handle_eratt_s4(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| uint32_t event_data; |
| struct Scsi_Host *shost; |
| uint32_t if_type; |
| struct lpfc_register portstat_reg = {0}; |
| uint32_t reg_err1, reg_err2; |
| uint32_t uerrlo_reg, uemasklo_reg; |
| uint32_t pci_rd_rc1, pci_rd_rc2; |
| int rc; |
| |
| /* If the pci channel is offline, ignore possible errors, since |
| * we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) |
| return; |
| /* If resets are disabled then leave the HBA alone and return */ |
| if (!phba->cfg_enable_hba_reset) |
| return; |
| |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| pci_rd_rc1 = lpfc_readl( |
| phba->sli4_hba.u.if_type0.UERRLOregaddr, |
| &uerrlo_reg); |
| pci_rd_rc2 = lpfc_readl( |
| phba->sli4_hba.u.if_type0.UEMASKLOregaddr, |
| &uemasklo_reg); |
| /* consider PCI bus read error as pci_channel_offline */ |
| if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) |
| return; |
| lpfc_sli4_offline_eratt(phba); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| pci_rd_rc1 = lpfc_readl( |
| phba->sli4_hba.u.if_type2.STATUSregaddr, |
| &portstat_reg.word0); |
| /* consider PCI bus read error as pci_channel_offline */ |
| if (pci_rd_rc1 == -EIO) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3151 PCI bus read access failure: x%x\n", |
| readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); |
| return; |
| } |
| reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); |
| reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); |
| if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { |
| /* TODO: Register for Overtemp async events. */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2889 Port Overtemperature event, " |
| "taking port offline\n"); |
| spin_lock_irq(&phba->hbalock); |
| phba->over_temp_state = HBA_OVER_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_offline_eratt(phba); |
| break; |
| } |
| if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3143 Port Down: Firmware Restarted\n"); |
| else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3144 Port Down: Debug Dump\n"); |
| else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3145 Port Down: Provisioning\n"); |
| /* |
| * On error status condition, driver need to wait for port |
| * ready before performing reset. |
| */ |
| rc = lpfc_sli4_pdev_status_reg_wait(phba); |
| if (!rc) { |
| /* need reset: attempt for port recovery */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2887 Reset Needed: Attempting Port " |
| "Recovery...\n"); |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| if (lpfc_online(phba) == 0) { |
| lpfc_unblock_mgmt_io(phba); |
| /* don't report event on forced debug dump */ |
| if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) |
| return; |
| else |
| break; |
| } |
| /* fall through for not able to recover */ |
| } |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3152 Unrecoverable error, bring the port " |
| "offline\n"); |
| lpfc_sli4_offline_eratt(phba); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| break; |
| } |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "3123 Report dump event to upper layer\n"); |
| /* Send an internal error event to mgmt application */ |
| lpfc_board_errevt_to_mgmt(phba); |
| |
| event_data = FC_REG_DUMP_EVENT; |
| shost = lpfc_shost_from_vport(vport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(event_data), (char *) &event_data, |
| SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); |
| } |
| |
| /** |
| * lpfc_handle_eratt - Wrapper func for handling hba error attention |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine wraps the actual SLI3 or SLI4 hba error attention handling |
| * routine from the API jump table function pointer from the lpfc_hba struct. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| void |
| lpfc_handle_eratt(struct lpfc_hba *phba) |
| { |
| (*phba->lpfc_handle_eratt)(phba); |
| } |
| |
| /** |
| * lpfc_handle_latt - The HBA link event handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked from the worker thread to handle a HBA host |
| * attention link event. |
| **/ |
| void |
| lpfc_handle_latt(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct lpfc_sli *psli = &phba->sli; |
| LPFC_MBOXQ_t *pmb; |
| volatile uint32_t control; |
| struct lpfc_dmabuf *mp; |
| int rc = 0; |
| |
| pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| rc = 1; |
| goto lpfc_handle_latt_err_exit; |
| } |
| |
| mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!mp) { |
| rc = 2; |
| goto lpfc_handle_latt_free_pmb; |
| } |
| |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp->virt) { |
| rc = 3; |
| goto lpfc_handle_latt_free_mp; |
| } |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_all_cmd(phba); |
| |
| psli->slistat.link_event++; |
| lpfc_read_topology(phba, pmb, mp); |
| pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; |
| pmb->vport = vport; |
| /* Block ELS IOCBs until we have processed this mbox command */ |
| phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| rc = 4; |
| goto lpfc_handle_latt_free_mbuf; |
| } |
| |
| /* Clear Link Attention in HA REG */ |
| spin_lock_irq(&phba->hbalock); |
| writel(HA_LATT, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| |
| return; |
| |
| lpfc_handle_latt_free_mbuf: |
| phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| lpfc_handle_latt_free_mp: |
| kfree(mp); |
| lpfc_handle_latt_free_pmb: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| lpfc_handle_latt_err_exit: |
| /* Enable Link attention interrupts */ |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag |= LPFC_PROCESS_LA; |
| control = readl(phba->HCregaddr); |
| control |= HC_LAINT_ENA; |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| |
| /* Clear Link Attention in HA REG */ |
| writel(HA_LATT, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_linkdown(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
| "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_parse_vpd - Parse VPD (Vital Product Data) |
| * @phba: pointer to lpfc hba data structure. |
| * @vpd: pointer to the vital product data. |
| * @len: length of the vital product data in bytes. |
| * |
| * This routine parses the Vital Product Data (VPD). The VPD is treated as |
| * an array of characters. In this routine, the ModelName, ProgramType, and |
| * ModelDesc, etc. fields of the phba data structure will be populated. |
| * |
| * Return codes |
| * 0 - pointer to the VPD passed in is NULL |
| * 1 - success |
| **/ |
| int |
| lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) |
| { |
| uint8_t lenlo, lenhi; |
| int Length; |
| int i, j; |
| int finished = 0; |
| int index = 0; |
| |
| if (!vpd) |
| return 0; |
| |
| /* Vital Product */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0455 Vital Product Data: x%x x%x x%x x%x\n", |
| (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], |
| (uint32_t) vpd[3]); |
| while (!finished && (index < (len - 4))) { |
| switch (vpd[index]) { |
| case 0x82: |
| case 0x91: |
| index += 1; |
| lenlo = vpd[index]; |
| index += 1; |
| lenhi = vpd[index]; |
| index += 1; |
| i = ((((unsigned short)lenhi) << 8) + lenlo); |
| index += i; |
| break; |
| case 0x90: |
| index += 1; |
| lenlo = vpd[index]; |
| index += 1; |
| lenhi = vpd[index]; |
| index += 1; |
| Length = ((((unsigned short)lenhi) << 8) + lenlo); |
| if (Length > len - index) |
| Length = len - index; |
| while (Length > 0) { |
| /* Look for Serial Number */ |
| if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->SerialNumber[j++] = vpd[index++]; |
| if (j == 31) |
| break; |
| } |
| phba->SerialNumber[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { |
| phba->vpd_flag |= VPD_MODEL_DESC; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ModelDesc[j++] = vpd[index++]; |
| if (j == 255) |
| break; |
| } |
| phba->ModelDesc[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { |
| phba->vpd_flag |= VPD_MODEL_NAME; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ModelName[j++] = vpd[index++]; |
| if (j == 79) |
| break; |
| } |
| phba->ModelName[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { |
| phba->vpd_flag |= VPD_PROGRAM_TYPE; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ProgramType[j++] = vpd[index++]; |
| if (j == 255) |
| break; |
| } |
| phba->ProgramType[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { |
| phba->vpd_flag |= VPD_PORT; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (phba->sli4_hba.pport_name_sta == |
| LPFC_SLI4_PPNAME_GET)) { |
| j++; |
| index++; |
| } else |
| phba->Port[j++] = vpd[index++]; |
| if (j == 19) |
| break; |
| } |
| if ((phba->sli_rev != LPFC_SLI_REV4) || |
| (phba->sli4_hba.pport_name_sta == |
| LPFC_SLI4_PPNAME_NON)) |
| phba->Port[j] = 0; |
| continue; |
| } |
| else { |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| index += i; |
| Length -= (3 + i); |
| } |
| } |
| finished = 0; |
| break; |
| case 0x78: |
| finished = 1; |
| break; |
| default: |
| index ++; |
| break; |
| } |
| } |
| |
| return(1); |
| } |
| |
| /** |
| * lpfc_get_hba_model_desc - Retrieve HBA device model name and description |
| * @phba: pointer to lpfc hba data structure. |
| * @mdp: pointer to the data structure to hold the derived model name. |
| * @descp: pointer to the data structure to hold the derived description. |
| * |
| * This routine retrieves HBA's description based on its registered PCI device |
| * ID. The @descp passed into this function points to an array of 256 chars. It |
| * shall be returned with the model name, maximum speed, and the host bus type. |
| * The @mdp passed into this function points to an array of 80 chars. When the |
| * function returns, the @mdp will be filled with the model name. |
| **/ |
| static void |
| lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) |
| { |
| lpfc_vpd_t *vp; |
| uint16_t dev_id = phba->pcidev->device; |
| int max_speed; |
| int GE = 0; |
| int oneConnect = 0; /* default is not a oneConnect */ |
| struct { |
| char *name; |
| char *bus; |
| char *function; |
| } m = {"<Unknown>", "", ""}; |
| |
| if (mdp && mdp[0] != '\0' |
| && descp && descp[0] != '\0') |
| return; |
| |
| if (phba->lmt & LMT_16Gb) |
| max_speed = 16; |
| else if (phba->lmt & LMT_10Gb) |
| max_speed = 10; |
| else if (phba->lmt & LMT_8Gb) |
| max_speed = 8; |
| else if (phba->lmt & LMT_4Gb) |
| max_speed = 4; |
| else if (phba->lmt & LMT_2Gb) |
| max_speed = 2; |
| else |
| max_speed = 1; |
| |
| vp = &phba->vpd; |
| |
| switch (dev_id) { |
| case PCI_DEVICE_ID_FIREFLY: |
| m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SUPERFLY: |
| if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) |
| m = (typeof(m)){"LP7000", "PCI", |
| "Fibre Channel Adapter"}; |
| else |
| m = (typeof(m)){"LP7000E", "PCI", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_DRAGONFLY: |
| m = (typeof(m)){"LP8000", "PCI", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_CENTAUR: |
| if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) |
| m = (typeof(m)){"LP9002", "PCI", |
| "Fibre Channel Adapter"}; |
| else |
| m = (typeof(m)){"LP9000", "PCI", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_RFLY: |
| m = (typeof(m)){"LP952", "PCI", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PEGASUS: |
| m = (typeof(m)){"LP9802", "PCI-X", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_THOR: |
| m = (typeof(m)){"LP10000", "PCI-X", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_VIPER: |
| m = (typeof(m)){"LPX1000", "PCI-X", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PFLY: |
| m = (typeof(m)){"LP982", "PCI-X", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_TFLY: |
| m = (typeof(m)){"LP1050", "PCI-X", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS: |
| m = (typeof(m)){"LP11000", "PCI-X2", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_SCSP: |
| m = (typeof(m)){"LP11000-SP", "PCI-X2", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_DCSP: |
| m = (typeof(m)){"LP11002-SP", "PCI-X2", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE: |
| m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_SCSP: |
| m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_DCSP: |
| m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_BMID: |
| m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_BSMB: |
| m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR: |
| m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_SCSP: |
| m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_DCSP: |
| m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_ZMID: |
| m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZSMB: |
| m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP101: |
| m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP10000S: |
| m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP11000S: |
| m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LPE11000S: |
| m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT: |
| m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_MID: |
| m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SMB: |
| m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_DCSP: |
| m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SCSP: |
| m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_S: |
| m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HORNET: |
| m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_VF: |
| m = (typeof(m)){"LPev12000", "PCIe IOV", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_PF: |
| m = (typeof(m)){"LPev12000", "PCIe IOV", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_S: |
| m = (typeof(m)){"LPemv12002-S", "PCIe IOV", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_TIGERSHARK: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; |
| break; |
| case PCI_DEVICE_ID_TOMCAT: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; |
| break; |
| case PCI_DEVICE_ID_FALCON: |
| m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", |
| "EmulexSecure Fibre"}; |
| break; |
| case PCI_DEVICE_ID_BALIUS: |
| m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", |
| "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FC: |
| case PCI_DEVICE_ID_LANCER_FC_VF: |
| m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FCOE: |
| case PCI_DEVICE_ID_LANCER_FCOE_VF: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; |
| break; |
| default: |
| m = (typeof(m)){"Unknown", "", ""}; |
| break; |
| } |
| |
| if (mdp && mdp[0] == '\0') |
| snprintf(mdp, 79,"%s", m.name); |
| /* |
| * oneConnect hba requires special processing, they are all initiators |
| * and we put the port number on the end |
| */ |
| if (descp && descp[0] == '\0') { |
| if (oneConnect) |
| snprintf(descp, 255, |
| "Emulex OneConnect %s, %s Initiator, Port %s", |
| m.name, m.function, |
| phba->Port); |
| else |
| snprintf(descp, 255, |
| "Emulex %s %d%s %s %s", |
| m.name, max_speed, (GE) ? "GE" : "Gb", |
| m.bus, m.function); |
| } |
| } |
| |
| /** |
| * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring |
| * @phba: pointer to lpfc hba data structure. |
| * @pring: pointer to a IOCB ring. |
| * @cnt: the number of IOCBs to be posted to the IOCB ring. |
| * |
| * This routine posts a given number of IOCBs with the associated DMA buffer |
| * descriptors specified by the cnt argument to the given IOCB ring. |
| * |
| * Return codes |
| * The number of IOCBs NOT able to be posted to the IOCB ring. |
| **/ |
| int |
| lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) |
| { |
| IOCB_t *icmd; |
| struct lpfc_iocbq *iocb; |
| struct lpfc_dmabuf *mp1, *mp2; |
| |
| cnt += pring->missbufcnt; |
| |
| /* While there are buffers to post */ |
| while (cnt > 0) { |
| /* Allocate buffer for command iocb */ |
| iocb = lpfc_sli_get_iocbq(phba); |
| if (iocb == NULL) { |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| icmd = &iocb->iocb; |
| |
| /* 2 buffers can be posted per command */ |
| /* Allocate buffer to post */ |
| mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp1) |
| mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); |
| if (!mp1 || !mp1->virt) { |
| kfree(mp1); |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| |
| INIT_LIST_HEAD(&mp1->list); |
| /* Allocate buffer to post */ |
| if (cnt > 1) { |
| mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp2) |
| mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
| &mp2->phys); |
| if (!mp2 || !mp2->virt) { |
| kfree(mp2); |
| lpfc_mbuf_free(phba, mp1->virt, mp1->phys); |
| kfree(mp1); |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| |
| INIT_LIST_HEAD(&mp2->list); |
| } else { |
| mp2 = NULL; |
| } |
| |
| icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); |
| icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); |
| icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; |
| icmd->ulpBdeCount = 1; |
| cnt--; |
| if (mp2) { |
| icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); |
| icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); |
| icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; |
| cnt--; |
| icmd->ulpBdeCount = 2; |
| } |
| |
| icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; |
| icmd->ulpLe = 1; |
| |
| if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == |
| IOCB_ERROR) { |
| lpfc_mbuf_free(phba, mp1->virt, mp1->phys); |
| kfree(mp1); |
| cnt++; |
| if (mp2) { |
| lpfc_mbuf_free(phba, mp2->virt, mp2->phys); |
| kfree(mp2); |
| cnt++; |
| } |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| lpfc_sli_ringpostbuf_put(phba, pring, mp1); |
| if (mp2) |
| lpfc_sli_ringpostbuf_put(phba, pring, mp2); |
| } |
| pring->missbufcnt = 0; |
| return 0; |
| } |
| |
| /** |
| * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine posts initial receive IOCB buffers to the ELS ring. The |
| * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is |
| * set to 64 IOCBs. |
| * |
| * Return codes |
| * 0 - success (currently always success) |
| **/ |
| static int |
| lpfc_post_rcv_buf(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| |
| /* Ring 0, ELS / CT buffers */ |
| lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); |
| /* Ring 2 - FCP no buffers needed */ |
| |
| return 0; |
| } |
| |
| #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) |
| |
| /** |
| * lpfc_sha_init - Set up initial array of hash table entries |
| * @HashResultPointer: pointer to an array as hash table. |
| * |
| * This routine sets up the initial values to the array of hash table entries |
| * for the LC HBAs. |
| **/ |
| static void |
| lpfc_sha_init(uint32_t * HashResultPointer) |
| { |
| HashResultPointer[0] = 0x67452301; |
| HashResultPointer[1] = 0xEFCDAB89; |
| 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; |
| } |
| |
| /* take care of nodes in unused state before the state |
| * machine taking action. |
| */ |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { |
| 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_cleanup_vports_rrqs(vport, NULL); |
| } |
| |
| /** |
| * 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); |
| del_timer_sync(&vport->delayed_disc_tmo); |
| lpfc_can_disctmo(vport); |
| return; |
| } |
| |
| /** |
| * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine stops the SLI4 FCF rediscover wait timer if it's on. The |
| * caller of this routine should already hold the host lock. |
| **/ |
| void |
| __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) |
| { |
| /* Clear pending FCF rediscovery wait flag */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; |
| |
| /* Now, try to stop the timer */ |
| del_timer(&phba->fcf.redisc_wait); |
| } |
| |
| /** |
| * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine stops the SLI4 FCF rediscover wait timer if it's on. It |
| * checks whether the FCF rediscovery wait timer is pending with the host |
| * lock held before proceeding with disabling the timer and clearing the |
| * wait timer pendig flag. |
| **/ |
| void |
| lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) |
| { |
| spin_lock_irq(&phba->hbalock); |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { |
| /* FCF rediscovery timer already fired or stopped */ |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); |
| /* Clear failover in progress flags */ |
| phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * 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); |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| del_timer_sync(&phba->rrq_tmr); |
| phba->hba_flag &= ~HBA_RRQ_ACTIVE; |
| } |
| 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 */ |
| lpfc_sli4_stop_fcf_redisc_wait_timer(phba); |
| 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; |
| uint8_t actcmd = MBX_HEARTBEAT; |
| unsigned long timeout; |
| |
| timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; |
| spin_lock_irqsave(&phba->hbalock, iflag); |
| phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; |
| if (phba->sli.mbox_active) { |
| actcmd = phba->sli.mbox_active->u.mb.mbxCommand; |
| /* Determine how long we might wait for the active mailbox |
| * command to be gracefully completed by firmware. |
| */ |
| timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
| phba->sli.mbox_active) * 1000) + jiffies; |
| } |
| spin_unlock_irqrestore(&phba->hbalock, iflag); |
| |
| /* Wait for the outstnading mailbox command to complete */ |
| while (phba->sli.mbox_active) { |
| /* Check active mailbox complete status every 2ms */ |
| msleep(2); |
| if (time_after(jiffies, timeout)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2813 Mgmt IO is Blocked %x " |
| "- mbox cmd %x still active\n", |
| phba->sli.sli_flag, actcmd); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * lpfc_sli4_node_prep - Assign RPIs for active nodes. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * Allocate RPIs for all active remote nodes. This is needed whenever |
| * an SLI4 adapter is reset and the driver is not unloading. Its purpose |
| * is to fixup the temporary rpi assignments. |
| **/ |
| void |
| lpfc_sli4_node_prep(struct lpfc_hba *phba) |
| { |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (phba->sli_rev != LPFC_SLI_REV4) |
| return; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| if (vports[i]->load_flag & FC_UNLOADING) |
| continue; |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, |
| &vports[i]->fc_nodes, |
| nlp_listp) { |
| if (NLP_CHK_NODE_ACT(ndlp)) |
| ndlp->nlp_rpi = |
| lpfc_sli4_alloc_rpi(phba); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| /** |
| * 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 (phba->sli_rev == LPFC_SLI_REV4) { |
| if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ |
| lpfc_unblock_mgmt_io(phba); |
| return 1; |
| } |
| } else { |
| if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ |
| lpfc_unblock_mgmt_io(phba); |
| return 1; |
| } |
| } |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && 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; |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_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; |
| struct Scsi_Host *shost; |
| 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_vports && vports[i] != NULL; i++) { |
| if (vports[i]->load_flag & FC_UNLOADING) |
| continue; |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; |
| vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| vports[i]->fc_flag &= ~FC_VFI_REGISTERED; |
| spin_unlock_irq(shost->host_lock); |
| |
| 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); |
| /* |
| * Whenever an SLI4 port goes offline, free the |
| * RPI. Get a new RPI when the adapter port |
| * comes back online. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); |
| lpfc_unreg_rpi(vports[i], ndlp); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| lpfc_sli_mbox_sys_shutdown(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 port and all timers associated with this hba */ |
| lpfc_stop_port(phba); |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && 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_vports && 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. |
| **/ |
| static void |
| 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. */ |
| spin_lock(&phba->scsi_buf_list_lock); |
| 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--; |
| } |
| spin_unlock(&phba->scsi_buf_list_lock); |
| |
| /* 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); |
| } |
| |
| /** |
| * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine first calculates the sizes of the current els and allocated |
| * scsi sgl lists, and then goes through all sgls to updates the physical |
| * XRIs assigned due to port function reset. During port initialization, the |
| * current els and allocated scsi sgl lists are 0s. |
| * |
| * Return codes |
| * 0 - successful (for now, it always returns 0) |
| **/ |
| int |
| lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) |
| { |
| struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; |
| struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; |
| uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; |
| LIST_HEAD(els_sgl_list); |
| LIST_HEAD(scsi_sgl_list); |
| int rc; |
| |
| /* |
| * update on pci function's els xri-sgl list |
| */ |
| els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); |
| if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { |
| /* els xri-sgl expanded */ |
| xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "3157 ELS xri-sgl count increased from " |
| "%d to %d\n", phba->sli4_hba.els_xri_cnt, |
| els_xri_cnt); |
| /* allocate the additional els sgls */ |
| for (i = 0; i < xri_cnt; i++) { |
| sglq_entry = kzalloc(sizeof(struct lpfc_sglq), |
| GFP_KERNEL); |
| if (sglq_entry == NULL) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2562 Failure to allocate an " |
| "ELS sgl entry:%d\n", i); |
| rc = -ENOMEM; |
| goto out_free_mem; |
| } |
| sglq_entry->buff_type = GEN_BUFF_TYPE; |
| sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, |
| &sglq_entry->phys); |
| if (sglq_entry->virt == NULL) { |
| kfree(sglq_entry); |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2563 Failure to allocate an " |
| "ELS mbuf:%d\n", i); |
| rc = -ENOMEM; |
| goto out_free_mem; |
| } |
| sglq_entry->sgl = sglq_entry->virt; |
| memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); |
| sglq_entry->state = SGL_FREED; |
| list_add_tail(&sglq_entry->list, &els_sgl_list); |
| } |
| spin_lock(&phba->hbalock); |
| list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); |
| spin_unlock(&phba->hbalock); |
| } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { |
| /* els xri-sgl shrinked */ |
| xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "3158 ELS xri-sgl count decreased from " |
| "%d to %d\n", phba->sli4_hba.els_xri_cnt, |
| els_xri_cnt); |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); |
| spin_unlock_irq(&phba->hbalock); |
| /* release extra els sgls from list */ |
| for (i = 0; i < xri_cnt; i++) { |
| list_remove_head(&els_sgl_list, |
| sglq_entry, struct lpfc_sglq, list); |
| if (sglq_entry) { |
| lpfc_mbuf_free(phba, sglq_entry->virt, |
| sglq_entry->phys); |
| kfree(sglq_entry); |
| } |
| } |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); |
| spin_unlock_irq(&phba->hbalock); |
| } else |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "3163 ELS xri-sgl count unchanged: %d\n", |
| els_xri_cnt); |
| phba->sli4_hba.els_xri_cnt = els_xri_cnt; |
| |
| /* update xris to els sgls on the list */ |
| sglq_entry = NULL; |
| sglq_entry_next = NULL; |
| list_for_each_entry_safe(sglq_entry, sglq_entry_next, |
| &phba->sli4_hba.lpfc_sgl_list, list) { |
| lxri = lpfc_sli4_next_xritag(phba); |
| if (lxri == NO_XRI) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2400 Failed to allocate xri for " |
| "ELS sgl\n"); |
| rc = -ENOMEM; |
| goto out_free_mem; |
| } |
| sglq_entry->sli4_lxritag = lxri; |
| sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; |
| } |
| |
| /* |
| * update on pci function's allocated scsi xri-sgl list |
| */ |
| phba->total_scsi_bufs = 0; |
| |
| /* maximum number of xris available for scsi buffers */ |
| phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - |
| els_xri_cnt; |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2401 Current allocated SCSI xri-sgl count:%d, " |
| "maximum SCSI xri count:%d\n", |
| phba->sli4_hba.scsi_xri_cnt, |
| phba->sli4_hba.scsi_xri_max); |
| |
| spin_lock_irq(&phba->scsi_buf_list_lock); |
| list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list); |
| spin_unlock_irq(&phba->scsi_buf_list_lock); |
| |
| if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { |
| /* max scsi xri shrinked below the allocated scsi buffers */ |
| scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - |
| phba->sli4_hba.scsi_xri_max; |
| /* release the extra allocated scsi buffers */ |
| for (i = 0; i < scsi_xri_cnt; i++) { |
| list_remove_head(&scsi_sgl_list, psb, |
| struct lpfc_scsi_buf, list); |
| pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, |
| psb->dma_handle); |
| kfree(psb); |
| } |
| spin_lock_irq(&phba->scsi_buf_list_lock); |
| phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; |
| spin_unlock_irq(&phba->scsi_buf_list_lock); |
| } |
| |
| /* update xris associated to remaining allocated scsi buffers */ |
| psb = NULL; |
| psb_next = NULL; |
| list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { |
| lxri = lpfc_sli4_next_xritag(phba); |
| if (lxri == NO_XRI) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2560 Failed to allocate xri for " |
| "scsi buffer\n"); |
| rc = -ENOMEM; |
| goto out_free_mem; |
| } |
| psb->cur_iocbq.sli4_lxritag = lxri; |
| psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; |
| } |
| spin_lock(&phba->scsi_buf_list_lock); |
| list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list); |
| spin_unlock(&phba->scsi_buf_list_lock); |
| |
| return 0; |
| |
| out_free_mem: |
| lpfc_free_els_sgl_list(phba); |
| lpfc_scsi_free(phba); |
| return rc; |
| } |
| |
| /** |
| * 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; |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| shost->dma_boundary = |
| phba->sli4_hba.pc_sli4_params.sge_supp_len-1; |
| shost->sg_tablesize = phba->cfg_sg_seg_cnt; |
| } |
| |
| /* |
| * 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); |
| INIT_LIST_HEAD(&vport->rcv_buffer_list); |
| 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; |
| |
| init_timer(&vport->delayed_disc_tmo); |
| vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; |
| vport->delayed_disc_tmo.data = (unsigned long)vport; |
| |
| error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->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_16Gb) |
| fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; |
| 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; |
| |
| fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; |
| |
| /* 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_stop_port_s3 - Stop SLI3 device port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to stop an SLI3 device port, it stops the device |
| * from generating interrupts and stops the device driver's timers for the |
| * device. |
| **/ |
| static void |
| lpfc_stop_port_s3(struct lpfc_hba *phba) |
| { |
| /* 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 */ |
| |
| /* Reset some HBA SLI setup states */ |
| lpfc_stop_hba_timers(phba); |
| phba->pport->work_port_events = 0; |
| } |
| |
| /** |
| * lpfc_stop_port_s4 - Stop SLI4 device port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to stop an SLI4 device port, it stops the device |
| * from generating interrupts and stops the device driver's timers for the |
| * device. |
| **/ |
| static void |
| lpfc_stop_port_s4(struct lpfc_hba *phba) |
| { |
| /* Reset some HBA SLI4 setup states */ |
| lpfc_stop_hba_timers(phba); |
| phba->pport->work_port_events = 0; |
| phba->sli4_hba.intr_enable = 0; |
| } |
| |
| /** |
| * lpfc_stop_port - Wrapper function for stopping hba port |
| * @phba: Pointer to HBA context object. |
| * |
| * This routine wraps the actual SLI3 or SLI4 hba stop port routine from |
| * the API jump table function pointer from the lpfc_hba struct. |
| **/ |
| void |
| lpfc_stop_port(struct lpfc_hba *phba) |
| { |
| phba->lpfc_stop_port(phba); |
| } |
| |
| /** |
| * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer |
| * @phba: Pointer to hba for which this call is being executed. |
| * |
| * This routine starts the timer waiting for the FCF rediscovery to complete. |
| **/ |
| void |
| lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) |
| { |
| unsigned long fcf_redisc_wait_tmo = |
| (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); |
| /* Start fcf rediscovery wait period timer */ |
| mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); |
| spin_lock_irq(&phba->hbalock); |
| /* Allow action to new fcf asynchronous event */ |
| phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); |
| /* Mark the FCF rediscovery pending state */ |
| phba->fcf.fcf_flag |= FCF_REDISC_PEND; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout |
| * @ptr: Map to lpfc_hba data structure pointer. |
| * |
| * This routine is invoked when waiting for FCF table rediscover has been |
| * timed out. If new FCF record(s) has (have) been discovered during the |
| * wait period, a new FCF event shall be added to the FCOE async event |
| * list, and then worker thread shall be waked up for processing from the |
| * worker thread context. |
| **/ |
| void |
| lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) |
| { |
| struct lpfc_hba *phba = (struct lpfc_hba *)ptr; |
| |
| /* Don't send FCF rediscovery event if timer cancelled */ |
| spin_lock_irq(&phba->hbalock); |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| /* Clear FCF rediscovery timer pending flag */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; |
| /* FCF rediscovery event to worker thread */ |
| phba->fcf.fcf_flag |= FCF_REDISC_EVT; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2776 FCF rediscover quiescent timer expired\n"); |
| /* wake up worker thread */ |
| lpfc_worker_wake_up(phba); |
| } |
| |
| /** |
| * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async link completion queue entry. |
| * |
| * This routine is to parse the SLI4 link-attention link fault code and |
| * translate it into the base driver's read link attention mailbox command |
| * status. |
| * |
| * Return: Link-attention status in terms of base driver's coding. |
| **/ |
| static uint16_t |
| lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, |
| struct lpfc_acqe_link *acqe_link) |
| { |
| uint16_t latt_fault; |
| |
| switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { |
| case LPFC_ASYNC_LINK_FAULT_NONE: |
| case LPFC_ASYNC_LINK_FAULT_LOCAL: |
| case LPFC_ASYNC_LINK_FAULT_REMOTE: |
| latt_fault = 0; |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0398 Invalid link fault code: x%x\n", |
| bf_get(lpfc_acqe_link_fault, acqe_link)); |
| latt_fault = MBXERR_ERROR; |
| break; |
| } |
| return latt_fault; |
| } |
| |
| /** |
| * lpfc_sli4_parse_latt_type - Parse sli4 link attention type |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async link completion queue entry. |
| * |
| * This routine is to parse the SLI4 link attention type and translate it |
| * into the base driver's link attention type coding. |
| * |
| * Return: Link attention type in terms of base driver's coding. |
| **/ |
| static uint8_t |
| lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, |
| struct lpfc_acqe_link *acqe_link) |
| { |
| uint8_t att_type; |
| |
| switch (bf_get(lpfc_acqe_link_status, acqe_link)) { |
| case LPFC_ASYNC_LINK_STATUS_DOWN: |
| case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: |
| att_type = LPFC_ATT_LINK_DOWN; |
| break; |
| case LPFC_ASYNC_LINK_STATUS_UP: |
| /* Ignore physical link up events - wait for logical link up */ |
| att_type = LPFC_ATT_RESERVED; |
| break; |
| case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: |
| att_type = LPFC_ATT_LINK_UP; |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0399 Invalid link attention type: x%x\n", |
| bf_get(lpfc_acqe_link_status, acqe_link)); |
| att_type = LPFC_ATT_RESERVED; |
| break; |
| } |
| return att_type; |
| } |
| |
| /** |
| * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async link completion queue entry. |
| * |
| * This routine is to parse the SLI4 link-attention link speed and translate |
| * it into the base driver's link-attention link speed coding. |
| * |
| * Return: Link-attention link speed in terms of base driver's coding. |
| **/ |
| static uint8_t |
| lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, |
| struct lpfc_acqe_link *acqe_link) |
| { |
| uint8_t link_speed; |
| |
| switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { |
| case LPFC_ASYNC_LINK_SPEED_ZERO: |
| case LPFC_ASYNC_LINK_SPEED_10MBPS: |
| case LPFC_ASYNC_LINK_SPEED_100MBPS: |
| link_speed = LPFC_LINK_SPEED_UNKNOWN; |
| break; |
| case LPFC_ASYNC_LINK_SPEED_1GBPS: |
| link_speed = LPFC_LINK_SPEED_1GHZ; |
| break; |
| case LPFC_ASYNC_LINK_SPEED_10GBPS: |
| link_speed = LPFC_LINK_SPEED_10GHZ; |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0483 Invalid link-attention link speed: x%x\n", |
| bf_get(lpfc_acqe_link_speed, acqe_link)); |
| link_speed = LPFC_LINK_SPEED_UNKNOWN; |
| break; |
| } |
| return link_speed; |
| } |
| |
| /** |
| * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async link completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous FCoE link event. |
| **/ |
| static void |
| lpfc_sli4_async_link_evt(struct lpfc_hba *phba, |
| struct lpfc_acqe_link *acqe_link) |
| { |
| struct lpfc_dmabuf *mp; |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| struct lpfc_mbx_read_top *la; |
| uint8_t att_type; |
| int rc; |
| |
| att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); |
| if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) |
| return; |
| phba->fcoe_eventtag = acqe_link->event_tag; |
| pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "0395 The mboxq allocation failed\n"); |
| return; |
| } |
| mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!mp) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "0396 The lpfc_dmabuf allocation failed\n"); |
| goto out_free_pmb; |
| } |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp->virt) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "0397 The mbuf allocation failed\n"); |
| goto out_free_dmabuf; |
| } |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_all_cmd(phba); |
| |
| /* Block ELS IOCBs until we have done process link event */ |
| phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| |
| /* Update link event statistics */ |
| phba->sli.slistat.link_event++; |
| |
| /* Create lpfc_handle_latt mailbox command from link ACQE */ |
| lpfc_read_topology(phba, pmb, mp); |
| pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; |
| pmb->vport = phba->pport; |
| |
| /* Keep the link status for extra SLI4 state machine reference */ |
| phba->sli4_hba.link_state.speed = |
| bf_get(lpfc_acqe_link_speed, acqe_link); |
| phba->sli4_hba.link_state.duplex = |
| bf_get(lpfc_acqe_link_duplex, acqe_link); |
| phba->sli4_hba.link_state.status = |
| bf_get(lpfc_acqe_link_status, acqe_link); |
| phba->sli4_hba.link_state.type = |
| bf_get(lpfc_acqe_link_type, acqe_link); |
| phba->sli4_hba.link_state.number = |
| bf_get(lpfc_acqe_link_number, acqe_link); |
| phba->sli4_hba.link_state.fault = |
| bf_get(lpfc_acqe_link_fault, acqe_link); |
| phba->sli4_hba.link_state.logical_speed = |
| bf_get(lpfc_acqe_logical_link_speed, acqe_link); |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2900 Async FC/FCoE Link event - Speed:%dGBit " |
| "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " |
| "Logical speed:%dMbps Fault:%d\n", |
| phba->sli4_hba.link_state.speed, |
| phba->sli4_hba.link_state.topology, |
| phba->sli4_hba.link_state.status, |
| phba->sli4_hba.link_state.type, |
| phba->sli4_hba.link_state.number, |
| phba->sli4_hba.link_state.logical_speed * 10, |
| phba->sli4_hba.link_state.fault); |
| /* |
| * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch |
| * topology info. Note: Optional for non FC-AL ports. |
| */ |
| if (!(phba->hba_flag & HBA_FCOE_MODE)) { |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) |
| goto out_free_dmabuf; |
| return; |
| } |
| /* |
| * For FCoE Mode: fill in all the topology information we need and call |
| * the READ_TOPOLOGY completion routine to continue without actually |
| * sending the READ_TOPOLOGY mailbox command to the port. |
| */ |
| /* Parse and translate status field */ |
| mb = &pmb->u.mb; |
| mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); |
| |
| /* Parse and translate link attention fields */ |
| la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; |
| la->eventTag = acqe_link->event_tag; |
| bf_set(lpfc_mbx_read_top_att_type, la, att_type); |
| bf_set(lpfc_mbx_read_top_link_spd, la, |
| lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); |
| |
| /* Fake the the following irrelvant fields */ |
| bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); |
| bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); |
| bf_set(lpfc_mbx_read_top_il, la, 0); |
| bf_set(lpfc_mbx_read_top_pb, la, 0); |
| bf_set(lpfc_mbx_read_top_fa, la, 0); |
| bf_set(lpfc_mbx_read_top_mm, la, 0); |
| |
| /* Invoke the lpfc_handle_latt mailbox command callback function */ |
| lpfc_mbx_cmpl_read_topology(phba, pmb); |
| |
| return; |
| |
| out_free_dmabuf: |
| kfree(mp); |
| out_free_pmb: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| /** |
| * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_fc: pointer to the async fc completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous FC event. It will simply log |
| * that the event was received and then issue a read_topology mailbox command so |
| * that the rest of the driver will treat it the same as SLI3. |
| **/ |
| static void |
| lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) |
| { |
| struct lpfc_dmabuf *mp; |
| LPFC_MBOXQ_t *pmb; |
| int rc; |
| |
| if (bf_get(lpfc_trailer_type, acqe_fc) != |
| LPFC_FC_LA_EVENT_TYPE_FC_LINK) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2895 Non FC link Event detected.(%d)\n", |
| bf_get(lpfc_trailer_type, acqe_fc)); |
| return; |
| } |
| /* Keep the link status for extra SLI4 state machine reference */ |
| phba->sli4_hba.link_state.speed = |
| bf_get(lpfc_acqe_fc_la_speed, acqe_fc); |
| phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; |
| phba->sli4_hba.link_state.topology = |
| bf_get(lpfc_acqe_fc_la_topology, acqe_fc); |
| phba->sli4_hba.link_state.status = |
| bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); |
| phba->sli4_hba.link_state.type = |
| bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); |
| phba->sli4_hba.link_state.number = |
| bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); |
| phba->sli4_hba.link_state.fault = |
| bf_get(lpfc_acqe_link_fault, acqe_fc); |
| phba->sli4_hba.link_state.logical_speed = |
| bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2896 Async FC event - Speed:%dGBaud Topology:x%x " |
| "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" |
| "%dMbps Fault:%d\n", |
| phba->sli4_hba.link_state.speed, |
| phba->sli4_hba.link_state.topology, |
| phba->sli4_hba.link_state.status, |
| phba->sli4_hba.link_state.type, |
| phba->sli4_hba.link_state.number, |
| phba->sli4_hba.link_state.logical_speed * 10, |
| phba->sli4_hba.link_state.fault); |
| pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2897 The mboxq allocation failed\n"); |
| return; |
| } |
| mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!mp) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2898 The lpfc_dmabuf allocation failed\n"); |
| goto out_free_pmb; |
| } |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp->virt) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2899 The mbuf allocation failed\n"); |
| goto out_free_dmabuf; |
| } |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_all_cmd(phba); |
| |
| /* Block ELS IOCBs until we have done process link event */ |
| phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| |
| /* Update link event statistics */ |
| phba->sli.slistat.link_event++; |
| |
| /* Create lpfc_handle_latt mailbox command from link ACQE */ |
| lpfc_read_topology(phba, pmb, mp); |
| pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; |
| pmb->vport = phba->pport; |
| |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) |
| goto out_free_dmabuf; |
| return; |
| |
| out_free_dmabuf: |
| kfree(mp); |
| out_free_pmb: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| /** |
| * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_fc: pointer to the async SLI completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous SLI events. |
| **/ |
| static void |
| lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) |
| { |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2901 Async SLI event - Event Data1:x%08x Event Data2:" |
| "x%08x SLI Event Type:%d", |
| acqe_sli->event_data1, acqe_sli->event_data2, |
| bf_get(lpfc_trailer_type, acqe_sli)); |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport |
| * @vport: pointer to vport data structure. |
| * |
| * This routine is to perform Clear Virtual Link (CVL) on a vport in |
| * response to a CVL event. |
| * |
| * Return the pointer to the ndlp with the vport if successful, otherwise |
| * return NULL. |
| **/ |
| static struct lpfc_nodelist * |
| lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| struct lpfc_hba *phba; |
| |
| if (!vport) |
| return NULL; |
| phba = vport->phba; |
| if (!phba) |
| return NULL; |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) { |
| /* Cannot find existing Fabric ndlp, so allocate a new one */ |
| ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
| if (!ndlp) |
| return 0; |
| lpfc_nlp_init(vport, ndlp, Fabric_DID); |
| /* Set the node type */ |
| ndlp->nlp_type |= NLP_FABRIC; |
| /* Put ndlp onto node list */ |
| lpfc_enqueue_node(vport, ndlp); |
| } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
| /* re-setup ndlp without removing from node list */ |
| ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); |
| if (!ndlp) |
| return 0; |
| } |
| if ((phba->pport->port_state < LPFC_FLOGI) && |
| (phba->pport->port_state != LPFC_VPORT_FAILED)) |
| return NULL; |
| /* If virtual link is not yet instantiated ignore CVL */ |
| if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) |
| && (vport->port_state != LPFC_VPORT_FAILED)) |
| return NULL; |
| shost = lpfc_shost_from_vport(vport); |
| if (!shost) |
| return NULL; |
| lpfc_linkdown_port(vport); |
| lpfc_cleanup_pending_mbox(vport); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag |= FC_VPORT_CVL_RCVD; |
| spin_unlock_irq(shost->host_lock); |
| |
| return ndlp; |
| } |
| |
| /** |
| * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports |
| * @vport: pointer to lpfc hba data structure. |
| * |
| * This routine is to perform Clear Virtual Link (CVL) on all vports in |
| * response to a FCF dead event. |
| **/ |
| static void |
| lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) |
| lpfc_sli4_perform_vport_cvl(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| /** |
| * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async fcoe completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous fcoe event. |
| **/ |
| static void |
| lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, |
| struct lpfc_acqe_fip *acqe_fip) |
| { |
| uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); |
| int rc; |
| struct lpfc_vport *vport; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| int active_vlink_present; |
| struct lpfc_vport **vports; |
| int i; |
| |
| phba->fc_eventTag = acqe_fip->event_tag; |
| phba->fcoe_eventtag = acqe_fip->event_tag; |
| switch (event_type) { |
| case LPFC_FIP_EVENT_TYPE_NEW_FCF: |
| case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: |
| if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | |
| LOG_DISCOVERY, |
| "2546 New FCF event, evt_tag:x%x, " |
| "index:x%x\n", |
| acqe_fip->event_tag, |
| acqe_fip->index); |
| else |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | |
| LOG_DISCOVERY, |
| "2788 FCF param modified event, " |
| "evt_tag:x%x, index:x%x\n", |
| acqe_fip->event_tag, |
| acqe_fip->index); |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| /* |
| * During period of FCF discovery, read the FCF |
| * table record indexed by the event to update |
| * FCF roundrobin failover eligible FCF bmask. |
| */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | |
| LOG_DISCOVERY, |
| "2779 Read FCF (x%x) for updating " |
| "roundrobin FCF failover bmask\n", |
| acqe_fip->index); |
| rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); |
| } |
| |
| /* If the FCF discovery is in progress, do nothing. */ |
| spin_lock_irq(&phba->hbalock); |
| if (phba->hba_flag & FCF_TS_INPROG) { |
| spin_unlock_irq(&phba->hbalock); |
| break; |
| } |
| /* If fast FCF failover rescan event is pending, do nothing */ |
| if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { |
| spin_unlock_irq(&phba->hbalock); |
| break; |
| } |
| |
| /* If the FCF has been in discovered state, do nothing. */ |
| if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { |
| spin_unlock_irq(&phba->hbalock); |
| break; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Otherwise, scan the entire FCF table and re-discover SAN */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2770 Start FCF table scan per async FCF " |
| "event, evt_tag:x%x, index:x%x\n", |
| acqe_fip->event_tag, acqe_fip->index); |
| rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| if (rc) |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, |
| "2547 Issue FCF scan read FCF mailbox " |
| "command failed (x%x)\n", rc); |
| break; |
| |
| case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2548 FCF Table full count 0x%x tag 0x%x\n", |
| bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), |
| acqe_fip->event_tag); |
| break; |
| |
| case LPFC_FIP_EVENT_TYPE_FCF_DEAD: |
| phba->fcoe_cvl_eventtag = acqe_fip->event_tag; |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, |
| "2549 FCF (x%x) disconnected from network, " |
| "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); |
| /* |
| * If we are in the middle of FCF failover process, clear |
| * the corresponding FCF bit in the roundrobin bitmap. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| spin_unlock_irq(&phba->hbalock); |
| /* Update FLOGI FCF failover eligible FCF bmask */ |
| lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); |
| break; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* If the event is not for currently used fcf do nothing */ |
| if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) |
| break; |
| |
| /* |
| * Otherwise, request the port to rediscover the entire FCF |
| * table for a fast recovery from case that the current FCF |
| * is no longer valid as we are not in the middle of FCF |
| * failover process already. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| /* Mark the fast failover process in progress */ |
| phba->fcf.fcf_flag |= FCF_DEAD_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2771 Start FCF fast failover process due to " |
| "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " |
| "\n", acqe_fip->event_tag, acqe_fip->index); |
| rc = lpfc_sli4_redisc_fcf_table(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | |
| LOG_DISCOVERY, |
| "2772 Issue FCF rediscover mabilbox " |
| "command failed, fail through to FCF " |
| "dead event\n"); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| /* |
| * Last resort will fail over by treating this |
| * as a link down to FCF registration. |
| */ |
| lpfc_sli4_fcf_dead_failthrough(phba); |
| } else { |
| /* Reset FCF roundrobin bmask for new discovery */ |
| lpfc_sli4_clear_fcf_rr_bmask(phba); |
| /* |
| * Handling fast FCF failover to a DEAD FCF event is |
| * considered equalivant to receiving CVL to all vports. |
| */ |
| lpfc_sli4_perform_all_vport_cvl(phba); |
| } |
| break; |
| case LPFC_FIP_EVENT_TYPE_CVL: |
| phba->fcoe_cvl_eventtag = acqe_fip->event_tag; |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, |
| "2718 Clear Virtual Link Received for VPI 0x%x" |
| " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); |
| |
| vport = lpfc_find_vport_by_vpid(phba, |
| acqe_fip->index); |
| ndlp = lpfc_sli4_perform_vport_cvl(vport); |
| if (!ndlp) |
| break; |
| active_vlink_present = 0; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; |
| i++) { |
| if ((!(vports[i]->fc_flag & |
| FC_VPORT_CVL_RCVD)) && |
| (vports[i]->port_state > LPFC_FDISC)) { |
| active_vlink_present = 1; |
| break; |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| if (active_vlink_present) { |
| /* |
| * If there are other active VLinks present, |
| * re-instantiate the Vlink using FDISC. |
| */ |
| mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); |
| shost = lpfc_shost_from_vport(vport); |
| spin_lock_irq(shost->host_lock); |
| ndlp->nlp_flag |= NLP_DELAY_TMO; |
| spin_unlock_irq(shost->host_lock); |
| ndlp->nlp_last_elscmd = ELS_CMD_FDISC; |
| vport->port_state = LPFC_FDISC; |
| } else { |
| /* |
| * Otherwise, we request port to rediscover |
| * the entire FCF table for a fast recovery |
| * from possible case that the current FCF |
| * is no longer valid if we are not already |
| * in the FCF failover process. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| spin_unlock_irq(&phba->hbalock); |
| break; |
| } |
| /* Mark the fast failover process in progress */ |
| phba->fcf.fcf_flag |= FCF_ACVL_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | |
| LOG_DISCOVERY, |
| "2773 Start FCF failover per CVL, " |
| "evt_tag:x%x\n", acqe_fip->event_tag); |
| rc = lpfc_sli4_redisc_fcf_table(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | |
| LOG_DISCOVERY, |
| "2774 Issue FCF rediscover " |
| "mabilbox command failed, " |
| "through to CVL event\n"); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| /* |
| * Last resort will be re-try on the |
| * the current registered FCF entry. |
| */ |
| lpfc_retry_pport_discovery(phba); |
| } else |
| /* |
| * Reset FCF roundrobin bmask for new |
| * discovery. |
| */ |
| lpfc_sli4_clear_fcf_rr_bmask(phba); |
| } |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "0288 Unknown FCoE event type 0x%x event tag " |
| "0x%x\n", event_type, acqe_fip->event_tag); |
| break; |
| } |
| } |
| |
| /** |
| * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async dcbx completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous dcbx event. |
| **/ |
| static void |
| lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, |
| struct lpfc_acqe_dcbx *acqe_dcbx) |
| { |
| phba->fc_eventTag = acqe_dcbx->event_tag; |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "0290 The SLI4 DCBX asynchronous event is not " |
| "handled yet\n"); |
| } |
| |
| /** |
| * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event |
| * @phba: pointer to lpfc hba data structure. |
| * @acqe_link: pointer to the async grp5 completion queue entry. |
| * |
| * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event |
| * is an asynchronous notified of a logical link speed change. The Port |
| * reports the logical link speed in units of 10Mbps. |
| **/ |
| static void |
| lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, |
| struct lpfc_acqe_grp5 *acqe_grp5) |
| { |
| uint16_t prev_ll_spd; |
| |
| phba->fc_eventTag = acqe_grp5->event_tag; |
| phba->fcoe_eventtag = acqe_grp5->event_tag; |
| prev_ll_spd = phba->sli4_hba.link_state.logical_speed; |
| phba->sli4_hba.link_state.logical_speed = |
| (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2789 GRP5 Async Event: Updating logical link speed " |
| "from %dMbps to %dMbps\n", (prev_ll_spd * 10), |
| (phba->sli4_hba.link_state.logical_speed*10)); |
| } |
| |
| /** |
| * lpfc_sli4_async_event_proc - Process all the pending asynchronous event |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked by the worker thread to process all the pending |
| * SLI4 asynchronous events. |
| **/ |
| void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) |
| { |
| struct lpfc_cq_event *cq_event; |
| |
| /* First, declare the async event has been handled */ |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~ASYNC_EVENT; |
| spin_unlock_irq(&phba->hbalock); |
| /* Now, handle all the async events */ |
| while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { |
| /* Get the first event from the head of the event queue */ |
| spin_lock_irq(&phba->hbalock); |
| list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, |
| cq_event, struct lpfc_cq_event, list); |
| spin_unlock_irq(&phba->hbalock); |
| /* Process the asynchronous event */ |
| switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { |
| case LPFC_TRAILER_CODE_LINK: |
| lpfc_sli4_async_link_evt(phba, |
| &cq_event->cqe.acqe_link); |
| break; |
| case LPFC_TRAILER_CODE_FCOE: |
| lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); |
| break; |
| case LPFC_TRAILER_CODE_DCBX: |
| lpfc_sli4_async_dcbx_evt(phba, |
| &cq_event->cqe.acqe_dcbx); |
| break; |
| case LPFC_TRAILER_CODE_GRP5: |
| lpfc_sli4_async_grp5_evt(phba, |
| &cq_event->cqe.acqe_grp5); |
| break; |
| case LPFC_TRAILER_CODE_FC: |
| lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); |
| break; |
| case LPFC_TRAILER_CODE_SLI: |
| lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); |
| break; |
| default: |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "1804 Invalid asynchrous event code: " |
| "x%x\n", bf_get(lpfc_trailer_code, |
| &cq_event->cqe.mcqe_cmpl)); |
| break; |
| } |
| /* Free the completion event processed to the free pool */ |
| lpfc_sli4_cq_event_release(phba, cq_event); |
| } |
| } |
| |
| /** |
| * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked by the worker thread to process FCF table |
| * rediscovery pending completion event. |
| **/ |
| void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) |
| { |
| int rc; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* Clear FCF rediscovery timeout event */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; |
| /* Clear driver fast failover FCF record flag */ |
| phba->fcf.failover_rec.flag = 0; |
| /* Set state for FCF fast failover */ |
| phba->fcf.fcf_flag |= FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Scan FCF table from the first entry to re-discover SAN */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2777 Start post-quiescent FCF table scan\n"); |
| rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); |
| if (rc) |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, |
| "2747 Issue FCF scan read FCF mailbox " |
| "command failed 0x%x\n", rc); |
| } |
| |
| /** |
| * lpfc_api_table_setup - Set up per hba pci-device group func api jump table |
| * @phba: pointer to lpfc hba data structure. |
| * @dev_grp: The HBA PCI-Device group number. |
| * |
| * This routine is invoked to set up the per HBA PCI-Device group function |
| * API jump table entries. |
| * |
| * Return: 0 if success, otherwise -ENODEV |
| **/ |
| int |
| lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) |
| { |
| int rc; |
| |
| /* Set up lpfc PCI-device group */ |
| phba->pci_dev_grp = dev_grp; |
| |
| /* The LPFC_PCI_DEV_OC uses SLI4 */ |
| if (dev_grp == LPFC_PCI_DEV_OC) |
| phba->sli_rev = LPFC_SLI_REV4; |
| |
| /* Set up device INIT API function jump table */ |
| rc = lpfc_init_api_table_setup(phba, dev_grp); |
| if (rc) |
| return -ENODEV; |
| /* Set up SCSI API function jump table */ |
| rc = lpfc_scsi_api_table_setup(phba, dev_grp); |
| if (rc) |
| return -ENODEV; |
| /* Set up SLI API function jump table */ |
| rc = lpfc_sli_api_table_setup(phba, dev_grp); |
| if (rc) |
| return -ENODEV; |
| /* Set up MBOX API function jump table */ |
| rc = lpfc_mbox_api_table_setup(phba, dev_grp); |
| if (rc) |
| return -ENODEV; |
| |
| return 0; |
| } |
| |
| /** |
| * 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 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_enable_pci_dev(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| int bars = 0; |
| |
| /* 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); |
| |
| /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ |
| if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) |
| pdev->needs_freset = 1; |
| |
| return 0; |
| |
| out_disable_device: |
| pci_disable_device(pdev); |
| out_error: |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1401 Failed to enable pci device, bars:x%x\n", bars); |
| 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_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This function enables the PCI SR-IOV virtual functions to a physical |
| * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to |
| * enable the number of virtual functions to the physical function. As |
| * not all devices support SR-IOV, the return code from the pci_enable_sriov() |
| * API call does not considered as an error condition for most of the device. |
| **/ |
| uint16_t |
| lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev = phba->pcidev; |
| uint16_t nr_virtfn; |
| int pos; |
| |
| pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); |
| if (pos == 0) |
| return 0; |
| |
| pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); |
| return nr_virtfn; |
| } |
| |
| /** |
| * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions |
| * @phba: pointer to lpfc hba data structure. |
| * @nr_vfn: number of virtual functions to be enabled. |
| * |
| * This function enables the PCI SR-IOV virtual functions to a physical |
| * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to |
| * enable the number of virtual functions to the physical function. As |
| * not all devices support SR-IOV, the return code from the pci_enable_sriov() |
| * API call does not considered as an error condition for most of the device. |
| **/ |
| int |
| lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) |
| { |
| struct pci_dev *pdev = phba->pcidev; |
| uint16_t max_nr_vfn; |
| int rc; |
| |
| max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); |
| if (nr_vfn > max_nr_vfn) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3057 Requested vfs (%d) greater than " |
| "supported vfs (%d)", nr_vfn, max_nr_vfn); |
| return -EINVAL; |
| } |
| |
| rc = pci_enable_sriov(pdev, nr_vfn); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2806 Failed to enable sriov on this device " |
| "with vfn number nr_vf:%d, rc:%d\n", |
| nr_vfn, rc); |
| } else |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2807 Successful enable sriov on this device " |
| "with vfn number nr_vf:%d\n", nr_vfn); |
| return rc; |
| } |
| |
| /** |
| * 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 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli; |
| int rc; |
| |
| /* |
| * 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); |
| if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { |
| phba->menlo_flag |= HBA_MENLO_SUPPORT; |
| /* check for menlo minimum sg count */ |
| if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) |
| phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; |
| } |
| |
| /* |
| * 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; |
| |
| /* |
| * Enable sr-iov virtual functions if supported and configured |
| * through the module parameter. |
| */ |
| if (phba->cfg_sriov_nr_virtfn > 0) { |
| rc = lpfc_sli_probe_sriov_nr_virtfn(phba, |
| phba->cfg_sriov_nr_virtfn); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2808 Requested number of SR-IOV " |
| "virtual functions (%d) is not " |
| "supported\n", |
| phba->cfg_sriov_nr_virtfn); |
| phba->cfg_sriov_nr_virtfn = 0; |
| } |
| } |
| |
| 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_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up the driver internal resources specific to |
| * support the SLI-4 HBA device it attached to. |
| * |
| * Return codes |
| * 0 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli; |
| LPFC_MBOXQ_t *mboxq; |
| int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; |
| uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; |
| struct lpfc_mqe *mqe; |
| int longs, sli_family; |
| int sges_per_segment; |
| |
| /* Before proceed, wait for POST done and device ready */ |
| rc = lpfc_sli4_post_status_check(phba); |
| if (rc) |
| return -ENODEV; |
| |
| /* |
| * 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; |
| init_timer(&phba->rrq_tmr); |
| phba->rrq_tmr.function = lpfc_rrq_timeout; |
| phba->rrq_tmr.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; |
| /* 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; |
| /* FCF rediscover timer */ |
| init_timer(&phba->fcf.redisc_wait); |
| phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; |
| phba->fcf.redisc_wait.data = (unsigned long)phba; |
| |
| /* |
| * Control structure for handling external multi-buffer mailbox |
| * command pass-through. |
| */ |
| memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, |
| sizeof(struct lpfc_mbox_ext_buf_ctx)); |
| INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| |
| /* |
| * We need to do a READ_CONFIG mailbox command here before |
| * calling lpfc_get_cfgparam. For VFs this will report the |
| * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. |
| * All of the resources allocated |
| * for this Port are tied to these values. |
| */ |
| /* Get all the module params for configuring this host */ |
| lpfc_get_cfgparam(phba); |
| phba->max_vpi = LPFC_MAX_VPI; |
| /* This will be set to correct value after the read_config mbox */ |
| phba->max_vports = 0; |
| |
| /* Program the default value of vlan_id and fc_map */ |
| phba->valid_vlan = 0; |
| phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; |
| phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; |
| phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; |
| |
| /* With BlockGuard we can have multiple SGEs per Data Segemnt */ |
| sges_per_segment = 1; |
| if (phba->cfg_enable_bg) |
| sges_per_segment = 2; |
| |
| /* |
| * 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. |
| * To insure that the scsi sgl does not cross a 4k page boundary only |
| * sgl sizes of must be a power of 2. |
| */ |
| buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + |
| (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * |
| sizeof(struct sli4_sge))); |
| |
| sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); |
| max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; |
| switch (sli_family) { |
| case LPFC_SLI_INTF_FAMILY_BE2: |
| case LPFC_SLI_INTF_FAMILY_BE3: |
| /* There is a single hint for BE - 2 pages per BPL. */ |
| if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == |
| LPFC_SLI_INTF_SLI_HINT1_1) |
| max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; |
| break; |
| case LPFC_SLI_INTF_FAMILY_LNCR_A0: |
| case LPFC_SLI_INTF_FAMILY_LNCR_B0: |
| default: |
| break; |
| } |
| |
| for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; |
| dma_buf_size < max_buf_size && buf_size > dma_buf_size; |
| dma_buf_size = dma_buf_size << 1) |
| ; |
| if (dma_buf_size == max_buf_size) |
| phba->cfg_sg_seg_cnt = (dma_buf_size - |
| sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - |
| (2 * sizeof(struct sli4_sge))) / |
| sizeof(struct sli4_sge); |
| phba->cfg_sg_dma_buf_size = dma_buf_size; |
| |
| /* Initialize buffer queue management fields */ |
| hbq_count = lpfc_sli_hbq_count(); |
| for (i = 0; i < hbq_count; ++i) |
| INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); |
| INIT_LIST_HEAD(&phba->rb_pend_list); |
| phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; |
| phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; |
| |
| /* |
| * Initialize the SLI Layer to run with lpfc SLI4 HBAs. |
| */ |
| /* Initialize the Abort scsi buffer list used by driver */ |
| spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); |
| /* This abort list used by worker thread */ |
| spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); |
| |
| /* |
| * Initialize driver internal slow-path work queues |
| */ |
| |
| /* Driver internel slow-path CQ Event pool */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); |
| /* Response IOCB work queue list */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); |
| /* Asynchronous event CQ Event work queue list */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); |
| /* Fast-path XRI aborted CQ Event work queue list */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); |
| /* Slow-path XRI aborted CQ Event work queue list */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); |
| /* Receive queue CQ Event work queue list */ |
| INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); |
| |
| /* Initialize extent block lists. */ |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); |
| INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); |
| |
| /* Initialize the driver internal SLI layer lists. */ |
| lpfc_sli_setup(phba); |
| lpfc_sli_queue_setup(phba); |
| |
| /* Allocate device driver memory */ |
| rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); |
| if (rc) |
| return -ENOMEM; |
| |
| /* IF Type 2 ports get initialized now. */ |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| LPFC_SLI_INTF_IF_TYPE_2) { |
| rc = lpfc_pci_function_reset(phba); |
| if (unlikely(rc)) |
| return -ENODEV; |
| } |
| |
| /* Create the bootstrap mailbox command */ |
| rc = lpfc_create_bootstrap_mbox(phba); |
| if (unlikely(rc)) |
| goto out_free_mem; |
| |
| /* Set up the host's endian order with the device. */ |
| rc = lpfc_setup_endian_order(phba); |
| if (unlikely(rc)) |
| goto out_free_bsmbx; |
| |
| /* Set up the hba's configuration parameters. */ |
| rc = lpfc_sli4_read_config(phba); |
| if (unlikely(rc)) |
| goto out_free_bsmbx; |
| |
| /* IF Type 0 ports get initialized now. */ |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| LPFC_SLI_INTF_IF_TYPE_0) { |
| rc = lpfc_pci_function_reset(phba); |
| if (unlikely(rc)) |
| goto out_free_bsmbx; |
| } |
| |
| mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!mboxq) { |
| rc = -ENOMEM; |
| goto out_free_bsmbx; |
| } |
| |
| /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ |
| lpfc_supported_pages(mboxq); |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| if (!rc) { |
| mqe = &mboxq->u.mqe; |
| memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), |
| LPFC_MAX_SUPPORTED_PAGES); |
| for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { |
| switch (pn_page[i]) { |
| case LPFC_SLI4_PARAMETERS: |
| phba->sli4_hba.pc_sli4_params.supported = 1; |
| break; |
| default: |
| break; |
| } |
| } |
| /* Read the port's SLI4 Parameters capabilities if supported. */ |
| if (phba->sli4_hba.pc_sli4_params.supported) |
| rc = lpfc_pc_sli4_params_get(phba, mboxq); |
| if (rc) { |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| rc = -EIO; |
| goto out_free_bsmbx; |
| } |
| } |
| /* |
| * Get sli4 parameters that override parameters from Port capabilities. |
| * If this call fails, it isn't critical unless the SLI4 parameters come |
| * back in conflict. |
| */ |
| rc = lpfc_get_sli4_parameters(phba, mboxq); |
| if (rc) { |
| if (phba->sli4_hba.extents_in_use && |
| phba->sli4_hba.rpi_hdrs_in_use) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2999 Unsupported SLI4 Parameters " |
| "Extents and RPI headers enabled.\n"); |
| goto out_free_bsmbx; |
| } |
| } |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| /* Verify all the SLI4 queues */ |
| rc = lpfc_sli4_queue_verify(phba); |
| if (rc) |
| goto out_free_bsmbx; |
| |
| /* Create driver internal CQE event pool */ |
| rc = lpfc_sli4_cq_event_pool_create(phba); |
| if (rc) |
| goto out_free_bsmbx; |
| |
| /* Initialize sgl lists per host */ |
| lpfc_init_sgl_list(phba); |
| |
| /* Allocate and initialize active sgl array */ |
| rc = lpfc_init_active_sgl_array(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1430 Failed to initialize sgl list.\n"); |
| goto out_destroy_cq_event_pool; |
| } |
| rc = lpfc_sli4_init_rpi_hdrs(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1432 Failed to initialize rpi headers.\n"); |
| goto out_free_active_sgl; |
| } |
| |
| /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ |
| longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; |
| phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), |
| GFP_KERNEL); |
| if (!phba->fcf.fcf_rr_bmask) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2759 Failed allocate memory for FCF round " |
| "robin failover bmask\n"); |
| rc = -ENOMEM; |
| goto out_remove_rpi_hdrs; |
| } |
| |
| /* |
| * The cfg_fcp_eq_count can be zero whenever there is exactly one |
| * interrupt vector. This is not an error |
| */ |
| if (phba->cfg_fcp_eq_count) { |
| phba->sli4_hba.fcp_eq_hdl = |
| kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * |
| phba->cfg_fcp_eq_count), GFP_KERNEL); |
| if (!phba->sli4_hba.fcp_eq_hdl) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2572 Failed allocate memory for " |
| "fast-path per-EQ handle array\n"); |
| rc = -ENOMEM; |
| goto out_free_fcf_rr_bmask; |
| } |
| } |
| |
| phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * |
| phba->sli4_hba.cfg_eqn), GFP_KERNEL); |
| if (!phba->sli4_hba.msix_entries) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2573 Failed allocate memory for msi-x " |
| "interrupt vector entries\n"); |
| rc = -ENOMEM; |
| goto out_free_fcp_eq_hdl; |
| } |
| |
| /* |
| * Enable sr-iov virtual functions if supported and configured |
| * through the module parameter. |
| */ |
| if (phba->cfg_sriov_nr_virtfn > 0) { |
| rc = lpfc_sli_probe_sriov_nr_virtfn(phba, |
| phba->cfg_sriov_nr_virtfn); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "3020 Requested number of SR-IOV " |
| "virtual functions (%d) is not " |
| "supported\n", |
| phba->cfg_sriov_nr_virtfn); |
| phba->cfg_sriov_nr_virtfn = 0; |
| } |
| } |
| |
| return 0; |
| |
| out_free_fcp_eq_hdl: |
| kfree(phba->sli4_hba.fcp_eq_hdl); |
| out_free_fcf_rr_bmask: |
| kfree(phba->fcf.fcf_rr_bmask); |
| out_remove_rpi_hdrs: |
| lpfc_sli4_remove_rpi_hdrs(phba); |
| out_free_active_sgl: |
| lpfc_free_active_sgl(phba); |
| out_destroy_cq_event_pool: |
| lpfc_sli4_cq_event_pool_destroy(phba); |
| out_free_bsmbx: |
| lpfc_destroy_bootstrap_mbox(phba); |
| out_free_mem: |
| lpfc_mem_free(phba); |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 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-4 HBA device it attached to. |
| **/ |
| static void |
| lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) |
| { |
| struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; |
| |
| /* Free memory allocated for msi-x interrupt vector entries */ |
| kfree(phba->sli4_hba.msix_entries); |
| |
| /* Free memory allocated for fast-path work queue handles */ |
| kfree(phba->sli4_hba.fcp_eq_hdl); |
| |
| /* Free the allocated rpi headers. */ |
| lpfc_sli4_remove_rpi_hdrs(phba); |
| lpfc_sli4_remove_rpis(phba); |
| |
| /* Free eligible FCF index bmask */ |
| kfree(phba->fcf.fcf_rr_bmask); |
| |
| /* Free the ELS sgl list */ |
| lpfc_free_active_sgl(phba); |
| lpfc_free_els_sgl_list(phba); |
| |
| /* Free the completion queue EQ event pool */ |
| lpfc_sli4_cq_event_release_all(phba); |
| lpfc_sli4_cq_event_pool_destroy(phba); |
| |
| /* Release resource identifiers. */ |
| lpfc_sli4_dealloc_resource_identifiers(phba); |
| |
| /* Free the bsmbx region. */ |
| lpfc_destroy_bootstrap_mbox(phba); |
| |
| /* Free the SLI Layer memory with SLI4 HBAs */ |
| lpfc_mem_free_all(phba); |
| |
| /* Free the current connect table */ |
| list_for_each_entry_safe(conn_entry, next_conn_entry, |
| &phba->fcf_conn_rec_list, list) { |
| list_del_init(&conn_entry->list); |
| kfree(conn_entry); |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_init_api_table_setup - Set up init api function 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) |
| { |
| phba->lpfc_hba_init_link = lpfc_hba_init_link; |
| phba->lpfc_hba_down_link = lpfc_hba_down_link; |
| phba->lpfc_selective_reset = lpfc_selective_reset; |
| 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; |
| case LPFC_PCI_DEV_OC: |
| phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; |
| phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; |
| phba->lpfc_stop_port = lpfc_stop_port_s4; |
| 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 - successful |
| * 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 - successful |
| * 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 - successful |
| * 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_lxritag = NO_XRI; |
| 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_free_sgl_list - Free a given sgl list. |
| * @phba: pointer to lpfc hba data structure. |
| * @sglq_list: pointer to the head of sgl list. |
| * |
| * This routine is invoked to free a give sgl list and memory. |
| **/ |
| void |
| lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) |
| { |
| struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
| |
| list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { |
| list_del(&sglq_entry->list); |
| lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); |
| kfree(sglq_entry); |
| } |
| } |
| |
| /** |
| * lpfc_free_els_sgl_list - Free els sgl list. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to free the driver's els sgl list and memory. |
| **/ |
| static void |
| lpfc_free_els_sgl_list(struct lpfc_hba *phba) |
| { |
| LIST_HEAD(sglq_list); |
| |
| /* Retrieve all els sgls from driver list */ |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Now free the sgl list */ |
| lpfc_free_sgl_list(phba, &sglq_list); |
| } |
| |
| /** |
| * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate the driver's active sgl memory. |
| * This array will hold the sglq_entry's for active IOs. |
| **/ |
| static int |
| lpfc_init_active_sgl_array(struct lpfc_hba *phba) |
| { |
| int size; |
| size = sizeof(struct lpfc_sglq *); |
| size *= phba->sli4_hba.max_cfg_param.max_xri; |
| |
| phba->sli4_hba.lpfc_sglq_active_list = |
| kzalloc(size, GFP_KERNEL); |
| if (!phba->sli4_hba.lpfc_sglq_active_list) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| /** |
| * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to walk through the array of active sglq entries |
| * and free all of the resources. |
| * This is just a place holder for now. |
| **/ |
| static void |
| lpfc_free_active_sgl(struct lpfc_hba *phba) |
| { |
| kfree(phba->sli4_hba.lpfc_sglq_active_list); |
| } |
| |
| /** |
| * lpfc_init_sgl_list - Allocate and initialize sgl list. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate and initizlize the driver's sgl |
| * list and set up the sgl xritag tag array accordingly. |
| * |
| **/ |
| static void |
| lpfc_init_sgl_list(struct lpfc_hba *phba) |
| { |
| /* Initialize and populate the sglq list per host/VF. */ |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); |
| |
| /* els xri-sgl book keeping */ |
| phba->sli4_hba.els_xri_cnt = 0; |
| |
| /* scsi xri-buffer book keeping */ |
| phba->sli4_hba.scsi_xri_cnt = 0; |
| } |
| |
| /** |
| * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to post rpi header templates to the |
| * port for those SLI4 ports that do not support extents. This routine |
| * posts a PAGE_SIZE memory region to the port to hold up to |
| * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine |
| * and should be called only when interrupts are disabled. |
| * |
| * Return codes |
| * 0 - successful |
| * -ERROR - otherwise. |
| **/ |
| int |
| lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) |
| { |
| int rc = 0; |
| struct lpfc_rpi_hdr *rpi_hdr; |
| |
| INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); |
| if (!phba->sli4_hba.rpi_hdrs_in_use) |
| return rc; |
| if (phba->sli4_hba.extents_in_use) |
| return -EIO; |
| |
| rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); |
| if (!rpi_hdr) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
| "0391 Error during rpi post operation\n"); |
| lpfc_sli4_remove_rpis(phba); |
| rc = -ENODEV; |
| } |
| |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate a single 4KB memory region to |
| * support rpis and stores them in the phba. This single region |
| * provides support for up to 64 rpis. The region is used globally |
| * by the device. |
| * |
| * Returns: |
| * A valid rpi hdr on success. |
| * A NULL pointer on any failure. |
| **/ |
| struct lpfc_rpi_hdr * |
| lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) |
| { |
| uint16_t rpi_limit, curr_rpi_range; |
| struct lpfc_dmabuf *dmabuf; |
| struct lpfc_rpi_hdr *rpi_hdr; |
| uint32_t rpi_count; |
| |
| /* |
| * If the SLI4 port supports extents, posting the rpi header isn't |
| * required. Set the expected maximum count and let the actual value |
| * get set when extents are fully allocated. |
| */ |
| if (!phba->sli4_hba.rpi_hdrs_in_use) |
| return NULL; |
| if (phba->sli4_hba.extents_in_use) |
| return NULL; |
| |
| /* The limit on the logical index is just the max_rpi count. */ |
| rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + |
| phba->sli4_hba.max_cfg_param.max_rpi - 1; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* |
| * Establish the starting RPI in this header block. The starting |
| * rpi is normalized to a zero base because the physical rpi is |
| * port based. |
| */ |
| curr_rpi_range = phba->sli4_hba.next_rpi; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* |
| * The port has a limited number of rpis. The increment here |
| * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value |
| * and to allow the full max_rpi range per port. |
| */ |
| if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) |
| rpi_count = rpi_limit - curr_rpi_range; |
| else |
| rpi_count = LPFC_RPI_HDR_COUNT; |
| |
| if (!rpi_count) |
| return NULL; |
| /* |
| * First allocate the protocol header region for the port. The |
| * port expects a 4KB DMA-mapped memory region that is 4K aligned. |
| */ |
| dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!dmabuf) |
| return NULL; |
| |
| dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, |
| LPFC_HDR_TEMPLATE_SIZE, |
| &dmabuf->phys, |
| GFP_KERNEL); |
| if (!dmabuf->virt) { |
| rpi_hdr = NULL; |
| goto err_free_dmabuf; |
| } |
| |
| memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); |
| if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { |
| rpi_hdr = NULL; |
| goto err_free_coherent; |
| } |
| |
| /* Save the rpi header data for cleanup later. */ |
| rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); |
| if (!rpi_hdr) |
| goto err_free_coherent; |
| |
| rpi_hdr->dmabuf = dmabuf; |
| rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; |
| rpi_hdr->page_count = 1; |
| spin_lock_irq(&phba->hbalock); |
| |
| /* The rpi_hdr stores the logical index only. */ |
| rpi_hdr->start_rpi = curr_rpi_range; |
| list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); |
| |
| /* |
| * The next_rpi stores the next logical module-64 rpi value used |
| * to post physical rpis in subsequent rpi postings. |
| */ |
| phba->sli4_hba.next_rpi += rpi_count; |
| spin_unlock_irq(&phba->hbalock); |
| return rpi_hdr; |
| |
| err_free_coherent: |
| dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, |
| dmabuf->virt, dmabuf->phys); |
| err_free_dmabuf: |
| kfree(dmabuf); |
| return NULL; |
| } |
| |
| /** |
| * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to remove all memory resources allocated |
| * to support rpis for SLI4 ports not supporting extents. This routine |
| * presumes the caller has released all rpis consumed by fabric or port |
| * logins and is prepared to have the header pages removed. |
| **/ |
| void |
| lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) |
| { |
| struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; |
| |
| if (!phba->sli4_hba.rpi_hdrs_in_use) |
| goto exit; |
| |
| list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, |
| &phba->sli4_hba.lpfc_rpi_hdr_list, list) { |
| list_del(&rpi_hdr->list); |
| dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, |
| rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); |
| kfree(rpi_hdr->dmabuf); |
| kfree(rpi_hdr); |
| } |
| exit: |
| /* There are no rpis available to the port now. */ |
| phba->sli4_hba.next_rpi = 0; |
| } |
| |
| /** |
| * 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 - successful |
| * 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) { |
| dev_err(&pdev->dev, "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; |
| } |
| |
| spin_lock_init(&phba->ct_ev_lock); |
| INIT_LIST_HEAD(&phba->ct_ev_waiters); |
| |
| 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 - successful |
| * 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; |
| |
| atomic_set(&phba->sdev_cnt, 0); |
| 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) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9043 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) |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9044 BLKGRD: ERROR unable to allocate " |
| "memory for hexdump\n"); |
| } else |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9045 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) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9046 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) |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9047 BLKGRD: ERROR unable to allocate " |
| "memory for hexdump\n"); |
| } else |
| lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
| "9048 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 - successful |
| * 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 |
| || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 |
| || pci_set_consistent_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->mbox_ext = (phba->slim2p.virt + |
| offsetof(struct lpfc_sli2_slim, mbx_ext_words)); |
| 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_sli4_post_status_check - Wait for SLI4 POST done and check status |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to wait for SLI4 device Power On Self Test (POST) |
| * done and check status. |
| * |
| * Return 0 if successful, otherwise -ENODEV. |
| **/ |
| int |
| lpfc_sli4_post_status_check(struct lpfc_hba *phba) |
| { |
| struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; |
| struct lpfc_register reg_data; |
| int i, port_error = 0; |
| uint32_t if_type; |
| |
| memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); |
| memset(®_data, 0, sizeof(reg_data)); |
| if (!phba->sli4_hba.PSMPHRregaddr) |
| return -ENODEV; |
| |
| /* Wait up to 30 seconds for the SLI Port POST done and ready */ |
| for (i = 0; i < 3000; i++) { |
| if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, |
| &portsmphr_reg.word0) || |
| (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { |
| /* Port has a fatal POST error, break out */ |
| port_error = -ENODEV; |
| break; |
| } |
| if (LPFC_POST_STAGE_PORT_READY == |
| bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) |
| break; |
| msleep(10); |
| } |
| |
| /* |
| * If there was a port error during POST, then don't proceed with |
| * other register reads as the data may not be valid. Just exit. |
| */ |
| if (port_error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1408 Port Failed POST - portsmphr=0x%x, " |
| "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " |
| "scr2=x%x, hscratch=x%x, pstatus=x%x\n", |
| portsmphr_reg.word0, |
| bf_get(lpfc_port_smphr_perr, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_nip, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), |
| bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); |
| } else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2534 Device Info: SLIFamily=0x%x, " |
| "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " |
| "SLIHint_2=0x%x, FT=0x%x\n", |
| bf_get(lpfc_sli_intf_sli_family, |
| &phba->sli4_hba.sli_intf), |
| bf_get(lpfc_sli_intf_slirev, |
| &phba->sli4_hba.sli_intf), |
| bf_get(lpfc_sli_intf_if_type, |
| &phba->sli4_hba.sli_intf), |
| bf_get(lpfc_sli_intf_sli_hint1, |
| &phba->sli4_hba.sli_intf), |
| bf_get(lpfc_sli_intf_sli_hint2, |
| &phba->sli4_hba.sli_intf), |
| bf_get(lpfc_sli_intf_func_type, |
| &phba->sli4_hba.sli_intf)); |
| /* |
| * Check for other Port errors during the initialization |
| * process. Fail the load if the port did not come up |
| * correctly. |
| */ |
| if_type = bf_get(lpfc_sli_intf_if_type, |
| &phba->sli4_hba.sli_intf); |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| phba->sli4_hba.ue_mask_lo = |
| readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); |
| phba->sli4_hba.ue_mask_hi = |
| readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); |
| uerrlo_reg.word0 = |
| readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); |
| uerrhi_reg.word0 = |
| readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); |
| if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || |
| (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1422 Unrecoverable Error " |
| "Detected during POST " |
| "uerr_lo_reg=0x%x, " |
| "uerr_hi_reg=0x%x, " |
| "ue_mask_lo_reg=0x%x, " |
| "ue_mask_hi_reg=0x%x\n", |
| uerrlo_reg.word0, |
| uerrhi_reg.word0, |
| phba->sli4_hba.ue_mask_lo, |
| phba->sli4_hba.ue_mask_hi); |
| port_error = -ENODEV; |
| } |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| /* Final checks. The port status should be clean. */ |
| if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, |
| ®_data.word0) || |
| (bf_get(lpfc_sliport_status_err, ®_data) && |
| !bf_get(lpfc_sliport_status_rn, ®_data))) { |
| phba->work_status[0] = |
| readl(phba->sli4_hba.u.if_type2. |
| ERR1regaddr); |
| phba->work_status[1] = |
| readl(phba->sli4_hba.u.if_type2. |
| ERR2regaddr); |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2888 Unrecoverable port error " |
| "following POST: port status reg " |
| "0x%x, port_smphr reg 0x%x, " |
| "error 1=0x%x, error 2=0x%x\n", |
| reg_data.word0, |
| portsmphr_reg.word0, |
| phba->work_status[0], |
| phba->work_status[1]); |
| port_error = -ENODEV; |
| } |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| break; |
| } |
| } |
| return port_error; |
| } |
| |
| /** |
| * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. |
| * @phba: pointer to lpfc hba data structure. |
| * @if_type: The SLI4 interface type getting configured. |
| * |
| * This routine is invoked to set up SLI4 BAR0 PCI config space register |
| * memory map. |
| **/ |
| static void |
| lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) |
| { |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| phba->sli4_hba.u.if_type0.UERRLOregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; |
| phba->sli4_hba.u.if_type0.UERRHIregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; |
| phba->sli4_hba.u.if_type0.UEMASKLOregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; |
| phba->sli4_hba.u.if_type0.UEMASKHIregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; |
| phba->sli4_hba.SLIINTFregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| phba->sli4_hba.u.if_type2.ERR1regaddr = |
| phba->sli4_hba.conf_regs_memmap_p + |
| LPFC_CTL_PORT_ER1_OFFSET; |
| phba->sli4_hba.u.if_type2.ERR2regaddr = |
| phba->sli4_hba.conf_regs_memmap_p + |
| LPFC_CTL_PORT_ER2_OFFSET; |
| phba->sli4_hba.u.if_type2.CTRLregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + |
| LPFC_CTL_PORT_CTL_OFFSET; |
| phba->sli4_hba.u.if_type2.STATUSregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + |
| LPFC_CTL_PORT_STA_OFFSET; |
| phba->sli4_hba.SLIINTFregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; |
| phba->sli4_hba.PSMPHRregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + |
| LPFC_CTL_PORT_SEM_OFFSET; |
| phba->sli4_hba.RQDBregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; |
| phba->sli4_hba.WQDBregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; |
| phba->sli4_hba.EQCQDBregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; |
| phba->sli4_hba.MQDBregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; |
| phba->sli4_hba.BMBXregaddr = |
| phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| dev_printk(KERN_ERR, &phba->pcidev->dev, |
| "FATAL - unsupported SLI4 interface type - %d\n", |
| if_type); |
| break; |
| } |
| } |
| |
| /** |
| * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up SLI4 BAR1 control status register (CSR) |
| * memory map. |
| **/ |
| static void |
| lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) |
| { |
| phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + |
| LPFC_SLIPORT_IF0_SMPHR; |
| phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + |
| LPFC_HST_ISR0; |
| phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + |
| LPFC_HST_IMR0; |
| phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + |
| LPFC_HST_ISCR0; |
| } |
| |
| /** |
| * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. |
| * @phba: pointer to lpfc hba data structure. |
| * @vf: virtual function number |
| * |
| * This routine is invoked to set up SLI4 BAR2 doorbell register memory map |
| * based on the given viftual function number, @vf. |
| * |
| * Return 0 if successful, otherwise -ENODEV. |
| **/ |
| static int |
| lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) |
| { |
| if (vf > LPFC_VIR_FUNC_MAX) |
| return -ENODEV; |
| |
| phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + |
| vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); |
| phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + |
| vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); |
| phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + |
| vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); |
| phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + |
| vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); |
| phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + |
| vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); |
| return 0; |
| } |
| |
| /** |
| * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to create the bootstrap mailbox |
| * region consistent with the SLI-4 interface spec. This |
| * routine allocates all memory necessary to communicate |
| * mailbox commands to the port and sets up all alignment |
| * needs. No locks are expected to be held when calling |
| * this routine. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - could not allocated memory. |
| **/ |
| static int |
| lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) |
| { |
| uint32_t bmbx_size; |
| struct lpfc_dmabuf *dmabuf; |
| struct dma_address *dma_address; |
| uint32_t pa_addr; |
| uint64_t phys_addr; |
| |
| dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!dmabuf) |
| return -ENOMEM; |
| |
| /* |
| * The bootstrap mailbox region is comprised of 2 parts |
| * plus an alignment restriction of 16 bytes. |
| */ |
| bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); |
| dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, |
| bmbx_size, |
| &dmabuf->phys, |
| GFP_KERNEL); |
| if (!dmabuf->virt) { |
| kfree(dmabuf); |
| return -ENOMEM; |
| } |
| memset(dmabuf->virt, 0, bmbx_size); |
| |
| /* |
| * Initialize the bootstrap mailbox pointers now so that the register |
| * operations are simple later. The mailbox dma address is required |
| * to be 16-byte aligned. Also align the virtual memory as each |
| * maibox is copied into the bmbx mailbox region before issuing the |
| * command to the port. |
| */ |
| phba->sli4_hba.bmbx.dmabuf = dmabuf; |
| phba->sli4_hba.bmbx.bmbx_size = bmbx_size; |
| |
| phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, |
| LPFC_ALIGN_16_BYTE); |
| phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, |
| LPFC_ALIGN_16_BYTE); |
| |
| /* |
| * Set the high and low physical addresses now. The SLI4 alignment |
| * requirement is 16 bytes and the mailbox is posted to the port |
| * as two 30-bit addresses. The other data is a bit marking whether |
| * the 30-bit address is the high or low address. |
| * Upcast bmbx aphys to 64bits so shift instruction compiles |
| * clean on 32 bit machines. |
| */ |
| dma_address = &phba->sli4_hba.bmbx.dma_address; |
| phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; |
| pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); |
| dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | |
| LPFC_BMBX_BIT1_ADDR_HI); |
| |
| pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); |
| dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | |
| LPFC_BMBX_BIT1_ADDR_LO); |
| return 0; |
| } |
| |
| /** |
| * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to teardown the bootstrap mailbox |
| * region and release all host resources. This routine requires |
| * the caller to ensure all mailbox commands recovered, no |
| * additional mailbox comands are sent, and interrupts are disabled |
| * before calling this routine. |
| * |
| **/ |
| static void |
| lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) |
| { |
| dma_free_coherent(&phba->pcidev->dev, |
| phba->sli4_hba.bmbx.bmbx_size, |
| phba->sli4_hba.bmbx.dmabuf->virt, |
| phba->sli4_hba.bmbx.dmabuf->phys); |
| |
| kfree(phba->sli4_hba.bmbx.dmabuf); |
| memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); |
| } |
| |
| /** |
| * lpfc_sli4_read_config - Get the config parameters. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to read the configuration parameters from the HBA. |
| * The configuration parameters are used to set the base and maximum values |
| * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource |
| * allocation for the port. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| int |
| lpfc_sli4_read_config(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *pmb; |
| struct lpfc_mbx_read_config *rd_config; |
| union lpfc_sli4_cfg_shdr *shdr; |
| uint32_t shdr_status, shdr_add_status; |
| struct lpfc_mbx_get_func_cfg *get_func_cfg; |
| struct lpfc_rsrc_desc_fcfcoe *desc; |
| uint32_t desc_count; |
| int length, i, rc = 0; |
| |
| pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2011 Unable to allocate memory for issuing " |
| "SLI_CONFIG_SPECIAL mailbox command\n"); |
| return -ENOMEM; |
| } |
| |
| lpfc_read_config(phba, pmb); |
| |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2012 Mailbox failed , mbxCmd x%x " |
| "READ_CONFIG, mbxStatus x%x\n", |
| bf_get(lpfc_mqe_command, &pmb->u.mqe), |
| bf_get(lpfc_mqe_status, &pmb->u.mqe)); |
| rc = -EIO; |
| } else { |
| rd_config = &pmb->u.mqe.un.rd_config; |
| if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { |
| phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; |
| phba->sli4_hba.lnk_info.lnk_tp = |
| bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); |
| phba->sli4_hba.lnk_info.lnk_no = |
| bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "3081 lnk_type:%d, lnk_numb:%d\n", |
| phba->sli4_hba.lnk_info.lnk_tp, |
| phba->sli4_hba.lnk_info.lnk_no); |
| } else |
| lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
| "3082 Mailbox (x%x) returned ldv:x0\n", |
| bf_get(lpfc_mqe_command, &pmb->u.mqe)); |
| phba->sli4_hba.extents_in_use = |
| bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); |
| phba->sli4_hba.max_cfg_param.max_xri = |
| bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); |
| phba->sli4_hba.max_cfg_param.xri_base = |
| bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); |
| phba->sli4_hba.max_cfg_param.max_vpi = |
| bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); |
| phba->sli4_hba.max_cfg_param.vpi_base = |
| bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); |
| phba->sli4_hba.max_cfg_param.max_rpi = |
| bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); |
| phba->sli4_hba.max_cfg_param.rpi_base = |
| bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); |
| phba->sli4_hba.max_cfg_param.max_vfi = |
| bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); |
| phba->sli4_hba.max_cfg_param.vfi_base = |
| bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); |
| phba->sli4_hba.max_cfg_param.max_fcfi = |
| bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); |
| phba->sli4_hba.max_cfg_param.max_eq = |
| bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); |
| phba->sli4_hba.max_cfg_param.max_rq = |
| bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); |
| phba->sli4_hba.max_cfg_param.max_wq = |
| bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); |
| phba->sli4_hba.max_cfg_param.max_cq = |
| bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); |
| phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); |
| phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; |
| phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; |
| phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; |
| phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? |
| (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; |
| phba->max_vports = phba->max_vpi; |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "2003 cfg params Extents? %d " |
| "XRI(B:%d M:%d), " |
| "VPI(B:%d M:%d) " |
| "VFI(B:%d M:%d) " |
| "RPI(B:%d M:%d) " |
| "FCFI(Count:%d)\n", |
| phba->sli4_hba.extents_in_use, |
| phba->sli4_hba.max_cfg_param.xri_base, |
| phba->sli4_hba.max_cfg_param.max_xri, |
| phba->sli4_hba.max_cfg_param.vpi_base, |
| phba->sli4_hba.max_cfg_param.max_vpi, |
| phba->sli4_hba.max_cfg_param.vfi_base, |
| phba->sli4_hba.max_cfg_param.max_vfi, |
| phba->sli4_hba.max_cfg_param.rpi_base, |
| phba->sli4_hba.max_cfg_param.max_rpi, |
| phba->sli4_hba.max_cfg_param.max_fcfi); |
| } |
| |
| if (rc) |
| goto read_cfg_out; |
| |
| /* Reset the DFT_HBA_Q_DEPTH to the max xri */ |
| if (phba->cfg_hba_queue_depth > |
| (phba->sli4_hba.max_cfg_param.max_xri - |
| lpfc_sli4_get_els_iocb_cnt(phba))) |
| phba->cfg_hba_queue_depth = |
| phba->sli4_hba.max_cfg_param.max_xri - |
| lpfc_sli4_get_els_iocb_cnt(phba); |
| |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_IF_TYPE_2) |
| goto read_cfg_out; |
| |
| /* get the pf# and vf# for SLI4 if_type 2 port */ |
| length = (sizeof(struct lpfc_mbx_get_func_cfg) - |
| sizeof(struct lpfc_sli4_cfg_mhdr)); |
| lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, |
| length, LPFC_SLI4_MBX_EMBED); |
| |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| shdr = (union lpfc_sli4_cfg_shdr *) |
| &pmb->u.mqe.un.sli4_config.header.cfg_shdr; |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| if (rc || shdr_status || shdr_add_status) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "3026 Mailbox failed , mbxCmd x%x " |
| "GET_FUNCTION_CONFIG, mbxStatus x%x\n", |
| bf_get(lpfc_mqe_command, &pmb->u.mqe), |
| bf_get(lpfc_mqe_status, &pmb->u.mqe)); |
| rc = -EIO; |
| goto read_cfg_out; |
| } |
| |
| /* search for fc_fcoe resrouce descriptor */ |
| get_func_cfg = &pmb->u.mqe.un.get_func_cfg; |
| desc_count = get_func_cfg->func_cfg.rsrc_desc_count; |
| |
| for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { |
| desc = (struct lpfc_rsrc_desc_fcfcoe *) |
| &get_func_cfg->func_cfg.desc[i]; |
| if (LPFC_RSRC_DESC_TYPE_FCFCOE == |
| bf_get(lpfc_rsrc_desc_pcie_type, desc)) { |
| phba->sli4_hba.iov.pf_number = |
| bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); |
| phba->sli4_hba.iov.vf_number = |
| bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); |
| break; |
| } |
| } |
| |
| if (i < LPFC_RSRC_DESC_MAX_NUM) |
| lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
| "3027 GET_FUNCTION_CONFIG: pf_number:%d, " |
| "vf_number:%d\n", phba->sli4_hba.iov.pf_number, |
| phba->sli4_hba.iov.vf_number); |
| else { |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "3028 GET_FUNCTION_CONFIG: failed to find " |
| "Resrouce Descriptor:x%x\n", |
| LPFC_RSRC_DESC_TYPE_FCFCOE); |
| rc = -EIO; |
| } |
| |
| read_cfg_out: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return rc; |
| } |
| |
| /** |
| * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to setup the port-side endian order when |
| * the port if_type is 0. This routine has no function for other |
| * if_types. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| static int |
| lpfc_setup_endian_order(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| uint32_t if_type, rc = 0; |
| uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, |
| HOST_ENDIAN_HIGH_WORD1}; |
| |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0492 Unable to allocate memory for " |
| "issuing SLI_CONFIG_SPECIAL mailbox " |
| "command\n"); |
| return -ENOMEM; |
| } |
| |
| /* |
| * The SLI4_CONFIG_SPECIAL mailbox command requires the first |
| * two words to contain special data values and no other data. |
| */ |
| memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0493 SLI_CONFIG_SPECIAL mailbox " |
| "failed with status x%x\n", |
| rc); |
| rc = -EIO; |
| } |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| break; |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to check the user settable queue counts for EQs and |
| * CQs. after this routine is called the counts will be set to valid values that |
| * adhere to the constraints of the system's interrupt vectors and the port's |
| * queue resources. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| **/ |
| static int |
| lpfc_sli4_queue_verify(struct lpfc_hba *phba) |
| { |
| int cfg_fcp_wq_count; |
| int cfg_fcp_eq_count; |
| |
| /* |
| * Sanity check for confiugred queue parameters against the run-time |
| * device parameters |
| */ |
| |
| /* Sanity check on FCP fast-path WQ parameters */ |
| cfg_fcp_wq_count = phba->cfg_fcp_wq_count; |
| if (cfg_fcp_wq_count > |
| (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { |
| cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - |
| LPFC_SP_WQN_DEF; |
| if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2581 Not enough WQs (%d) from " |
| "the pci function for supporting " |
| "FCP WQs (%d)\n", |
| phba->sli4_hba.max_cfg_param.max_wq, |
| phba->cfg_fcp_wq_count); |
| goto out_error; |
| } |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2582 Not enough WQs (%d) from the pci " |
| "function for supporting the requested " |
| "FCP WQs (%d), the actual FCP WQs can " |
| "be supported: %d\n", |
| phba->sli4_hba.max_cfg_param.max_wq, |
| phba->cfg_fcp_wq_count, cfg_fcp_wq_count); |
| } |
| /* The actual number of FCP work queues adopted */ |
| phba->cfg_fcp_wq_count = cfg_fcp_wq_count; |
| |
| /* Sanity check on FCP fast-path EQ parameters */ |
| cfg_fcp_eq_count = phba->cfg_fcp_eq_count; |
| if (cfg_fcp_eq_count > |
| (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { |
| cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - |
| LPFC_SP_EQN_DEF; |
| if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2574 Not enough EQs (%d) from the " |
| "pci function for supporting FCP " |
| "EQs (%d)\n", |
| phba->sli4_hba.max_cfg_param.max_eq, |
| phba->cfg_fcp_eq_count); |
| goto out_error; |
| } |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2575 Not enough EQs (%d) from the pci " |
| "function for supporting the requested " |
| "FCP EQs (%d), the actual FCP EQs can " |
| "be supported: %d\n", |
| phba->sli4_hba.max_cfg_param.max_eq, |
| phba->cfg_fcp_eq_count, cfg_fcp_eq_count); |
| } |
| /* It does not make sense to have more EQs than WQs */ |
| if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2593 The FCP EQ count(%d) cannot be greater " |
| "than the FCP WQ count(%d), limiting the " |
| "FCP EQ count to %d\n", cfg_fcp_eq_count, |
| phba->cfg_fcp_wq_count, |
| phba->cfg_fcp_wq_count); |
| cfg_fcp_eq_count = phba->cfg_fcp_wq_count; |
| } |
| /* The actual number of FCP event queues adopted */ |
| phba->cfg_fcp_eq_count = cfg_fcp_eq_count; |
| /* The overall number of event queues used */ |
| phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; |
| |
| /* Get EQ depth from module parameter, fake the default for now */ |
| phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; |
| phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; |
| |
| /* Get CQ depth from module parameter, fake the default for now */ |
| phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; |
| phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; |
| |
| return 0; |
| out_error: |
| return -ENOMEM; |
| } |
| |
| /** |
| * lpfc_sli4_queue_create - Create all the SLI4 queues |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA |
| * operation. For each SLI4 queue type, the parameters such as queue entry |
| * count (queue depth) shall be taken from the module parameter. For now, |
| * we just use some constant number as place holder. |
| * |
| * Return codes |
| * 0 - sucessful |
| * -ENOMEM - No availble memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| int |
| lpfc_sli4_queue_create(struct lpfc_hba *phba) |
| { |
| struct lpfc_queue *qdesc; |
| int fcp_eqidx, fcp_cqidx, fcp_wqidx; |
| |
| /* |
| * Create Event Queues (EQs) |
| */ |
| |
| /* Create slow path event queue */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, |
| phba->sli4_hba.eq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0496 Failed allocate slow-path EQ\n"); |
| goto out_error; |
| } |
| phba->sli4_hba.sp_eq = qdesc; |
| |
| /* |
| * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be |
| * zero whenever there is exactly one interrupt vector. This is not |
| * an error. |
| */ |
| if (phba->cfg_fcp_eq_count) { |
| phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * |
| phba->cfg_fcp_eq_count), GFP_KERNEL); |
| if (!phba->sli4_hba.fp_eq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2576 Failed allocate memory for " |
| "fast-path EQ record array\n"); |
| goto out_free_sp_eq; |
| } |
| } |
| for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, |
| phba->sli4_hba.eq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0497 Failed allocate fast-path EQ\n"); |
| goto out_free_fp_eq; |
| } |
| phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; |
| } |
| |
| /* |
| * Create Complete Queues (CQs) |
| */ |
| |
| /* Create slow-path Mailbox Command Complete Queue */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, |
| phba->sli4_hba.cq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0500 Failed allocate slow-path mailbox CQ\n"); |
| goto out_free_fp_eq; |
| } |
| phba->sli4_hba.mbx_cq = qdesc; |
| |
| /* Create slow-path ELS Complete Queue */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, |
| phba->sli4_hba.cq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0501 Failed allocate slow-path ELS CQ\n"); |
| goto out_free_mbx_cq; |
| } |
| phba->sli4_hba.els_cq = qdesc; |
| |
| |
| /* |
| * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. |
| * If there are no FCP EQs then create exactly one FCP CQ. |
| */ |
| if (phba->cfg_fcp_eq_count) |
| phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * |
| phba->cfg_fcp_eq_count), |
| GFP_KERNEL); |
| else |
| phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), |
| GFP_KERNEL); |
| if (!phba->sli4_hba.fcp_cq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2577 Failed allocate memory for fast-path " |
| "CQ record array\n"); |
| goto out_free_els_cq; |
| } |
| fcp_cqidx = 0; |
| do { |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, |
| phba->sli4_hba.cq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0499 Failed allocate fast-path FCP " |
| "CQ (%d)\n", fcp_cqidx); |
| goto out_free_fcp_cq; |
| } |
| phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; |
| } while (++fcp_cqidx < phba->cfg_fcp_eq_count); |
| |
| /* Create Mailbox Command Queue */ |
| phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; |
| phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; |
| |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, |
| phba->sli4_hba.mq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0505 Failed allocate slow-path MQ\n"); |
| goto out_free_fcp_cq; |
| } |
| phba->sli4_hba.mbx_wq = qdesc; |
| |
| /* |
| * Create all the Work Queues (WQs) |
| */ |
| phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; |
| phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; |
| |
| /* Create slow-path ELS Work Queue */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, |
| phba->sli4_hba.wq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0504 Failed allocate slow-path ELS WQ\n"); |
| goto out_free_mbx_wq; |
| } |
| phba->sli4_hba.els_wq = qdesc; |
| |
| /* Create fast-path FCP Work Queue(s) */ |
| phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * |
| phba->cfg_fcp_wq_count), GFP_KERNEL); |
| if (!phba->sli4_hba.fcp_wq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2578 Failed allocate memory for fast-path " |
| "WQ record array\n"); |
| goto out_free_els_wq; |
| } |
| for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, |
| phba->sli4_hba.wq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0503 Failed allocate fast-path FCP " |
| "WQ (%d)\n", fcp_wqidx); |
| goto out_free_fcp_wq; |
| } |
| phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; |
| } |
| |
| /* |
| * Create Receive Queue (RQ) |
| */ |
| phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; |
| phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; |
| |
| /* Create Receive Queue for header */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, |
| phba->sli4_hba.rq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0506 Failed allocate receive HRQ\n"); |
| goto out_free_fcp_wq; |
| } |
| phba->sli4_hba.hdr_rq = qdesc; |
| |
| /* Create Receive Queue for data */ |
| qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, |
| phba->sli4_hba.rq_ecount); |
| if (!qdesc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0507 Failed allocate receive DRQ\n"); |
| goto out_free_hdr_rq; |
| } |
| phba->sli4_hba.dat_rq = qdesc; |
| |
| return 0; |
| |
| out_free_hdr_rq: |
| lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); |
| phba->sli4_hba.hdr_rq = NULL; |
| out_free_fcp_wq: |
| for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { |
| lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); |
| phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; |
| } |
| kfree(phba->sli4_hba.fcp_wq); |
| phba->sli4_hba.fcp_wq = NULL; |
| out_free_els_wq: |
| lpfc_sli4_queue_free(phba->sli4_hba.els_wq); |
| phba->sli4_hba.els_wq = NULL; |
| out_free_mbx_wq: |
| lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); |
| phba->sli4_hba.mbx_wq = NULL; |
| out_free_fcp_cq: |
| for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { |
| lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); |
| phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; |
| } |
| kfree(phba->sli4_hba.fcp_cq); |
| phba->sli4_hba.fcp_cq = NULL; |
| out_free_els_cq: |
| lpfc_sli4_queue_free(phba->sli4_hba.els_cq); |
| phba->sli4_hba.els_cq = NULL; |
| out_free_mbx_cq: |
| lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); |
| phba->sli4_hba.mbx_cq = NULL; |
| out_free_fp_eq: |
| for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { |
| lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); |
| phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; |
| } |
| kfree(phba->sli4_hba.fp_eq); |
| phba->sli4_hba.fp_eq = NULL; |
| out_free_sp_eq: |
| lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); |
| phba->sli4_hba.sp_eq = NULL; |
| out_error: |
| return -ENOMEM; |
| } |
| |
| /** |
| * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to release all the SLI4 queues with the FCoE HBA |
| * operation. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| void |
| lpfc_sli4_queue_destroy(struct lpfc_hba *phba) |
| { |
| int fcp_qidx; |
| |
| /* Release mailbox command work queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); |
| phba->sli4_hba.mbx_wq = NULL; |
| |
| /* Release ELS work queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.els_wq); |
| phba->sli4_hba.els_wq = NULL; |
| |
| /* Release FCP work queue */ |
| if (phba->sli4_hba.fcp_wq != NULL) |
| for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; |
| fcp_qidx++) |
| lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); |
| kfree(phba->sli4_hba.fcp_wq); |
| phba->sli4_hba.fcp_wq = NULL; |
| |
| /* Release unsolicited receive queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); |
| phba->sli4_hba.hdr_rq = NULL; |
| lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); |
| phba->sli4_hba.dat_rq = NULL; |
| |
| /* Release ELS complete queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.els_cq); |
| phba->sli4_hba.els_cq = NULL; |
| |
| /* Release mailbox command complete queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); |
| phba->sli4_hba.mbx_cq = NULL; |
| |
| /* Release FCP response complete queue */ |
| fcp_qidx = 0; |
| if (phba->sli4_hba.fcp_cq != NULL) |
| do |
| lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); |
| while (++fcp_qidx < phba->cfg_fcp_eq_count); |
| kfree(phba->sli4_hba.fcp_cq); |
| phba->sli4_hba.fcp_cq = NULL; |
| |
| /* Release fast-path event queue */ |
| if (phba->sli4_hba.fp_eq != NULL) |
| for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; |
| fcp_qidx++) |
| lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); |
| kfree(phba->sli4_hba.fp_eq); |
| phba->sli4_hba.fp_eq = NULL; |
| |
| /* Release slow-path event queue */ |
| lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); |
| phba->sli4_hba.sp_eq = NULL; |
| |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_queue_setup - Set up all the SLI4 queues |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to set up all the SLI4 queues for the FCoE HBA |
| * operation. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| int |
| lpfc_sli4_queue_setup(struct lpfc_hba *phba) |
| { |
| int rc = -ENOMEM; |
| int fcp_eqidx, fcp_cqidx, fcp_wqidx; |
| int fcp_cq_index = 0; |
| |
| /* |
| * Set up Event Queues (EQs) |
| */ |
| |
| /* Set up slow-path event queue */ |
| if (!phba->sli4_hba.sp_eq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0520 Slow-path EQ not allocated\n"); |
| goto out_error; |
| } |
| rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, |
| LPFC_SP_DEF_IMAX); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0521 Failed setup of slow-path EQ: " |
| "rc = 0x%x\n", rc); |
| goto out_error; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2583 Slow-path EQ setup: queue-id=%d\n", |
| phba->sli4_hba.sp_eq->queue_id); |
| |
| /* Set up fast-path event queue */ |
| if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3147 Fast-path EQs not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_sp_eq; |
| } |
| for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { |
| if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0522 Fast-path EQ (%d) not " |
| "allocated\n", fcp_eqidx); |
| rc = -ENOMEM; |
| goto out_destroy_fp_eq; |
| } |
| rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], |
| phba->cfg_fcp_imax); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0523 Failed setup of fast-path EQ " |
| "(%d), rc = 0x%x\n", fcp_eqidx, rc); |
| goto out_destroy_fp_eq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2584 Fast-path EQ setup: " |
| "queue[%d]-id=%d\n", fcp_eqidx, |
| phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); |
| } |
| |
| /* |
| * Set up Complete Queues (CQs) |
| */ |
| |
| /* Set up slow-path MBOX Complete Queue as the first CQ */ |
| if (!phba->sli4_hba.mbx_cq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0528 Mailbox CQ not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_fp_eq; |
| } |
| rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, |
| LPFC_MCQ, LPFC_MBOX); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0529 Failed setup of slow-path mailbox CQ: " |
| "rc = 0x%x\n", rc); |
| goto out_destroy_fp_eq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", |
| phba->sli4_hba.mbx_cq->queue_id, |
| phba->sli4_hba.sp_eq->queue_id); |
| |
| /* Set up slow-path ELS Complete Queue */ |
| if (!phba->sli4_hba.els_cq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0530 ELS CQ not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_mbx_cq; |
| } |
| rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, |
| LPFC_WCQ, LPFC_ELS); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0531 Failed setup of slow-path ELS CQ: " |
| "rc = 0x%x\n", rc); |
| goto out_destroy_mbx_cq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", |
| phba->sli4_hba.els_cq->queue_id, |
| phba->sli4_hba.sp_eq->queue_id); |
| |
| /* Set up fast-path FCP Response Complete Queue */ |
| if (!phba->sli4_hba.fcp_cq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3148 Fast-path FCP CQ array not " |
| "allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_els_cq; |
| } |
| fcp_cqidx = 0; |
| do { |
| if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0526 Fast-path FCP CQ (%d) not " |
| "allocated\n", fcp_cqidx); |
| rc = -ENOMEM; |
| goto out_destroy_fcp_cq; |
| } |
| if (phba->cfg_fcp_eq_count) |
| rc = lpfc_cq_create(phba, |
| phba->sli4_hba.fcp_cq[fcp_cqidx], |
| phba->sli4_hba.fp_eq[fcp_cqidx], |
| LPFC_WCQ, LPFC_FCP); |
| else |
| rc = lpfc_cq_create(phba, |
| phba->sli4_hba.fcp_cq[fcp_cqidx], |
| phba->sli4_hba.sp_eq, |
| LPFC_WCQ, LPFC_FCP); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0527 Failed setup of fast-path FCP " |
| "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); |
| goto out_destroy_fcp_cq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2588 FCP CQ setup: cq[%d]-id=%d, " |
| "parent %seq[%d]-id=%d\n", |
| fcp_cqidx, |
| phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, |
| (phba->cfg_fcp_eq_count) ? "" : "sp_", |
| fcp_cqidx, |
| (phba->cfg_fcp_eq_count) ? |
| phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : |
| phba->sli4_hba.sp_eq->queue_id); |
| } while (++fcp_cqidx < phba->cfg_fcp_eq_count); |
| |
| /* |
| * Set up all the Work Queues (WQs) |
| */ |
| |
| /* Set up Mailbox Command Queue */ |
| if (!phba->sli4_hba.mbx_wq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0538 Slow-path MQ not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_fcp_cq; |
| } |
| rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, |
| phba->sli4_hba.mbx_cq, LPFC_MBOX); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0539 Failed setup of slow-path MQ: " |
| "rc = 0x%x\n", rc); |
| goto out_destroy_fcp_cq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", |
| phba->sli4_hba.mbx_wq->queue_id, |
| phba->sli4_hba.mbx_cq->queue_id); |
| |
| /* Set up slow-path ELS Work Queue */ |
| if (!phba->sli4_hba.els_wq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0536 Slow-path ELS WQ not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_mbx_wq; |
| } |
| rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, |
| phba->sli4_hba.els_cq, LPFC_ELS); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0537 Failed setup of slow-path ELS WQ: " |
| "rc = 0x%x\n", rc); |
| goto out_destroy_mbx_wq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", |
| phba->sli4_hba.els_wq->queue_id, |
| phba->sli4_hba.els_cq->queue_id); |
| |
| /* Set up fast-path FCP Work Queue */ |
| if (!phba->sli4_hba.fcp_wq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3149 Fast-path FCP WQ array not " |
| "allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_els_wq; |
| } |
| for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { |
| if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0534 Fast-path FCP WQ (%d) not " |
| "allocated\n", fcp_wqidx); |
| rc = -ENOMEM; |
| goto out_destroy_fcp_wq; |
| } |
| rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], |
| phba->sli4_hba.fcp_cq[fcp_cq_index], |
| LPFC_FCP); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0535 Failed setup of fast-path FCP " |
| "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); |
| goto out_destroy_fcp_wq; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2591 FCP WQ setup: wq[%d]-id=%d, " |
| "parent cq[%d]-id=%d\n", |
| fcp_wqidx, |
| phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, |
| fcp_cq_index, |
| phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); |
| /* Round robin FCP Work Queue's Completion Queue assignment */ |
| if (phba->cfg_fcp_eq_count) |
| fcp_cq_index = ((fcp_cq_index + 1) % |
| phba->cfg_fcp_eq_count); |
| } |
| |
| /* |
| * Create Receive Queue (RQ) |
| */ |
| if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0540 Receive Queue not allocated\n"); |
| rc = -ENOMEM; |
| goto out_destroy_fcp_wq; |
| } |
| |
| lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); |
| lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); |
| |
| rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, |
| phba->sli4_hba.els_cq, LPFC_USOL); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0541 Failed setup of Receive Queue: " |
| "rc = 0x%x\n", rc); |
| goto out_destroy_fcp_wq; |
| } |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " |
| "parent cq-id=%d\n", |
| phba->sli4_hba.hdr_rq->queue_id, |
| phba->sli4_hba.dat_rq->queue_id, |
| phba->sli4_hba.els_cq->queue_id); |
| return 0; |
| |
| out_destroy_fcp_wq: |
| for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) |
| lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); |
| out_destroy_els_wq: |
| lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); |
| out_destroy_mbx_wq: |
| lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); |
| out_destroy_fcp_cq: |
| for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) |
| lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); |
| out_destroy_els_cq: |
| lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); |
| out_destroy_mbx_cq: |
| lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); |
| out_destroy_fp_eq: |
| for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) |
| lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); |
| out_destroy_sp_eq: |
| lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); |
| out_error: |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_queue_unset - Unset all the SLI4 queues |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unset all the SLI4 queues with the FCoE HBA |
| * operation. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| void |
| lpfc_sli4_queue_unset(struct lpfc_hba *phba) |
| { |
| int fcp_qidx; |
| |
| /* Unset mailbox command work queue */ |
| lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); |
| /* Unset ELS work queue */ |
| lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); |
| /* Unset unsolicited receive queue */ |
| lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); |
| /* Unset FCP work queue */ |
| for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) |
| lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); |
| /* Unset mailbox command complete queue */ |
| lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); |
| /* Unset ELS complete queue */ |
| lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); |
| /* Unset FCP response complete queue */ |
| if (phba->sli4_hba.fcp_cq) { |
| fcp_qidx = 0; |
| do { |
| lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); |
| } while (++fcp_qidx < phba->cfg_fcp_eq_count); |
| } |
| /* Unset fast-path event queue */ |
| if (phba->sli4_hba.fp_eq) { |
| for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; |
| fcp_qidx++) |
| lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); |
| } |
| /* Unset slow-path event queue */ |
| lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); |
| } |
| |
| /** |
| * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to allocate and set up a pool of completion queue |
| * events. The body of the completion queue event is a completion queue entry |
| * CQE. For now, this pool is used for the interrupt service routine to queue |
| * the following HBA completion queue events for the worker thread to process: |
| * - Mailbox asynchronous events |
| * - Receive queue completion unsolicited events |
| * Later, this can be used for all the slow-path events. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| **/ |
| static int |
| lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) |
| { |
| struct lpfc_cq_event *cq_event; |
| int i; |
| |
| for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { |
| cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); |
| if (!cq_event) |
| goto out_pool_create_fail; |
| list_add_tail(&cq_event->list, |
| &phba->sli4_hba.sp_cqe_event_pool); |
| } |
| return 0; |
| |
| out_pool_create_fail: |
| lpfc_sli4_cq_event_pool_destroy(phba); |
| return -ENOMEM; |
| } |
| |
| /** |
| * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to free the pool of completion queue events at |
| * driver unload time. Note that, it is the responsibility of the driver |
| * cleanup routine to free all the outstanding completion-queue events |
| * allocated from this pool back into the pool before invoking this routine |
| * to destroy the pool. |
| **/ |
| static void |
| lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) |
| { |
| struct lpfc_cq_event *cq_event, *next_cq_event; |
| |
| list_for_each_entry_safe(cq_event, next_cq_event, |
| &phba->sli4_hba.sp_cqe_event_pool, list) { |
| list_del(&cq_event->list); |
| kfree(cq_event); |
| } |
| } |
| |
| /** |
| * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is the lock free version of the API invoked to allocate a |
| * completion-queue event from the free pool. |
| * |
| * Return: Pointer to the newly allocated completion-queue event if successful |
| * NULL otherwise. |
| **/ |
| struct lpfc_cq_event * |
| __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) |
| { |
| struct lpfc_cq_event *cq_event = NULL; |
| |
| list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, |
| struct lpfc_cq_event, list); |
| return cq_event; |
| } |
| |
| /** |
| * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is the lock version of the API invoked to allocate a |
| * completion-queue event from the free pool. |
| * |
| * Return: Pointer to the newly allocated completion-queue event if successful |
| * NULL otherwise. |
| **/ |
| struct lpfc_cq_event * |
| lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) |
| { |
| struct lpfc_cq_event *cq_event; |
| unsigned long iflags; |
| |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| cq_event = __lpfc_sli4_cq_event_alloc(phba); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| return cq_event; |
| } |
| |
| /** |
| * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool |
| * @phba: pointer to lpfc hba data structure. |
| * @cq_event: pointer to the completion queue event to be freed. |
| * |
| * This routine is the lock free version of the API invoked to release a |
| * completion-queue event back into the free pool. |
| **/ |
| void |
| __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, |
| struct lpfc_cq_event *cq_event) |
| { |
| list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); |
| } |
| |
| /** |
| * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool |
| * @phba: pointer to lpfc hba data structure. |
| * @cq_event: pointer to the completion queue event to be freed. |
| * |
| * This routine is the lock version of the API invoked to release a |
| * completion-queue event back into the free pool. |
| **/ |
| void |
| lpfc_sli4_cq_event_release(struct lpfc_hba *phba, |
| struct lpfc_cq_event *cq_event) |
| { |
| unsigned long iflags; |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| __lpfc_sli4_cq_event_release(phba, cq_event); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| } |
| |
| /** |
| * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is to free all the pending completion-queue events to the |
| * back into the free pool for device reset. |
| **/ |
| static void |
| lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) |
| { |
| LIST_HEAD(cqelist); |
| struct lpfc_cq_event *cqe; |
| unsigned long iflags; |
| |
| /* Retrieve all the pending WCQEs from pending WCQE lists */ |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| /* Pending FCP XRI abort events */ |
| list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, |
| &cqelist); |
| /* Pending ELS XRI abort events */ |
| list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, |
| &cqelist); |
| /* Pending asynnc events */ |
| list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, |
| &cqelist); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| |
| while (!list_empty(&cqelist)) { |
| list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); |
| lpfc_sli4_cq_event_release(phba, cqe); |
| } |
| } |
| |
| /** |
| * lpfc_pci_function_reset - Reset pci function. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to request a PCI function reset. It will destroys |
| * all resources assigned to the PCI function which originates this request. |
| * |
| * Return codes |
| * 0 - successful |
| * -ENOMEM - No available memory |
| * -EIO - The mailbox failed to complete successfully. |
| **/ |
| int |
| lpfc_pci_function_reset(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| uint32_t rc = 0, if_type; |
| uint32_t shdr_status, shdr_add_status; |
| uint32_t rdy_chk, num_resets = 0, reset_again = 0; |
| union lpfc_sli4_cfg_shdr *shdr; |
| struct lpfc_register reg_data; |
| uint16_t devid; |
| |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0494 Unable to allocate memory for " |
| "issuing SLI_FUNCTION_RESET mailbox " |
| "command\n"); |
| return -ENOMEM; |
| } |
| |
| /* Setup PCI function reset mailbox-ioctl command */ |
| lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, |
| LPFC_SLI4_MBX_EMBED); |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| shdr = (union lpfc_sli4_cfg_shdr *) |
| &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, |
| &shdr->response); |
| if (rc != MBX_TIMEOUT) |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| if (shdr_status || shdr_add_status || rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0495 SLI_FUNCTION_RESET mailbox " |
| "failed with status x%x add_status x%x," |
| " mbx status x%x\n", |
| shdr_status, shdr_add_status, rc); |
| rc = -ENXIO; |
| } |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| for (num_resets = 0; |
| num_resets < MAX_IF_TYPE_2_RESETS; |
| num_resets++) { |
| reg_data.word0 = 0; |
| bf_set(lpfc_sliport_ctrl_end, ®_data, |
| LPFC_SLIPORT_LITTLE_ENDIAN); |
| bf_set(lpfc_sliport_ctrl_ip, ®_data, |
| LPFC_SLIPORT_INIT_PORT); |
| writel(reg_data.word0, phba->sli4_hba.u.if_type2. |
| CTRLregaddr); |
| /* flush */ |
| pci_read_config_word(phba->pcidev, |
| PCI_DEVICE_ID, &devid); |
| /* |
| * Poll the Port Status Register and wait for RDY for |
| * up to 10 seconds. If the port doesn't respond, treat |
| * it as an error. If the port responds with RN, start |
| * the loop again. |
| */ |
| for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { |
| msleep(10); |
| if (lpfc_readl(phba->sli4_hba.u.if_type2. |
| STATUSregaddr, ®_data.word0)) { |
| rc = -ENODEV; |
| goto out; |
| } |
| if (bf_get(lpfc_sliport_status_rn, ®_data)) |
| reset_again++; |
| if (bf_get(lpfc_sliport_status_rdy, ®_data)) |
| break; |
| } |
| |
| /* |
| * If the port responds to the init request with |
| * reset needed, delay for a bit and restart the loop. |
| */ |
| if (reset_again && (rdy_chk < 1000)) { |
| msleep(10); |
| reset_again = 0; |
| continue; |
| } |
| |
| /* Detect any port errors. */ |
| if ((bf_get(lpfc_sliport_status_err, ®_data)) || |
| (rdy_chk >= 1000)) { |
| phba->work_status[0] = readl( |
| phba->sli4_hba.u.if_type2.ERR1regaddr); |
| phba->work_status[1] = readl( |
| phba->sli4_hba.u.if_type2.ERR2regaddr); |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2890 Port error detected during port " |
| "reset(%d): wait_tmo:%d ms, " |
| "port status reg 0x%x, " |
| "error 1=0x%x, error 2=0x%x\n", |
| num_resets, rdy_chk*10, |
| reg_data.word0, |
| phba->work_status[0], |
| phba->work_status[1]); |
| rc = -ENODEV; |
| } |
| |
| /* |
| * Terminate the outer loop provided the Port indicated |
| * ready within 10 seconds. |
| */ |
| if (rdy_chk < 1000) |
| break; |
| } |
| /* delay driver action following IF_TYPE_2 function reset */ |
| msleep(100); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| break; |
| } |
| |
| out: |
| /* Catch the not-ready port failure after a port reset. */ |
| if (num_resets >= MAX_IF_TYPE_2_RESETS) |
| rc = -ENODEV; |
| |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands |
| * @phba: pointer to lpfc hba data structure. |
| * @cnt: number of nop mailbox commands to send. |
| * |
| * This routine is invoked to send a number @cnt of NOP mailbox command and |
| * wait for each command to complete. |
| * |
| * Return: the number of NOP mailbox command completed. |
| **/ |
| static int |
| lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| int length, cmdsent; |
| uint32_t mbox_tmo; |
| uint32_t rc = 0; |
| uint32_t shdr_status, shdr_add_status; |
| union lpfc_sli4_cfg_shdr *shdr; |
| |
| if (cnt == 0) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2518 Requested to send 0 NOP mailbox cmd\n"); |
| return cnt; |
| } |
| |
| mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2519 Unable to allocate memory for issuing " |
| "NOP mailbox command\n"); |
| return 0; |
| } |
| |
| /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ |
| length = (sizeof(struct lpfc_mbx_nop) - |
| sizeof(struct lpfc_sli4_cfg_mhdr)); |
| lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); |
| |
| for (cmdsent = 0; cmdsent < cnt; cmdsent++) { |
| if (!phba->sli4_hba.intr_enable) |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| else { |
| mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); |
| rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); |
| } |
| if (rc == MBX_TIMEOUT) |
| break; |
| /* Check return status */ |
| shdr = (union lpfc_sli4_cfg_shdr *) |
| &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, |
| &shdr->response); |
| if (shdr_status || shdr_add_status || rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "2520 NOP mailbox command failed " |
| "status x%x add_status x%x mbx " |
| "status x%x\n", shdr_status, |
| shdr_add_status, rc); |
| break; |
| } |
| } |
| |
| if (rc != MBX_TIMEOUT) |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| |
| return cmdsent; |
| } |
| |
| /** |
| * lpfc_sli4_pci_mem_setup - Setup SLI4 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-4 interface spec. |
| * |
| * Return codes |
| * 0 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) |
| { |
| struct pci_dev *pdev; |
| unsigned long bar0map_len, bar1map_len, bar2map_len; |
| int error = -ENODEV; |
| uint32_t if_type; |
| |
| /* 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 |
| || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 |
| || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { |
| return error; |
| } |
| } |
| |
| /* |
| * The BARs and register set definitions and offset locations are |
| * dependent on the if_type. |
| */ |
| if (pci_read_config_dword(pdev, LPFC_SLI_INTF, |
| &phba->sli4_hba.sli_intf.word0)) { |
| return error; |
| } |
| |
| /* There is no SLI3 failback for SLI4 devices. */ |
| if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_VALID) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2894 SLI_INTF reg contents invalid " |
| "sli_intf reg 0x%x\n", |
| phba->sli4_hba.sli_intf.word0); |
| return error; |
| } |
| |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| /* |
| * Get the bus address of SLI4 device Bar regions and the |
| * number of bytes required by each mapping. The mapping of the |
| * particular PCI BARs regions is dependent on the type of |
| * SLI4 device. |
| */ |
| if (pci_resource_start(pdev, 0)) { |
| phba->pci_bar0_map = pci_resource_start(pdev, 0); |
| bar0map_len = pci_resource_len(pdev, 0); |
| |
| /* |
| * Map SLI4 PCI Config Space Register base to a kernel virtual |
| * addr |
| */ |
| phba->sli4_hba.conf_regs_memmap_p = |
| ioremap(phba->pci_bar0_map, bar0map_len); |
| if (!phba->sli4_hba.conf_regs_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for SLI4 PCI config " |
| "registers.\n"); |
| goto out; |
| } |
| /* Set up BAR0 PCI config space register memory map */ |
| lpfc_sli4_bar0_register_memmap(phba, if_type); |
| } else { |
| phba->pci_bar0_map = pci_resource_start(pdev, 1); |
| bar0map_len = pci_resource_len(pdev, 1); |
| if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); |
| goto out; |
| } |
| phba->sli4_hba.conf_regs_memmap_p = |
| ioremap(phba->pci_bar0_map, bar0map_len); |
| if (!phba->sli4_hba.conf_regs_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for SLI4 PCI config " |
| "registers.\n"); |
| goto out; |
| } |
| lpfc_sli4_bar0_register_memmap(phba, if_type); |
| } |
| |
| if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && |
| (pci_resource_start(pdev, 2))) { |
| /* |
| * Map SLI4 if type 0 HBA Control Register base to a kernel |
| * virtual address and setup the registers. |
| */ |
| phba->pci_bar1_map = pci_resource_start(pdev, 2); |
| bar1map_len = pci_resource_len(pdev, 2); |
| phba->sli4_hba.ctrl_regs_memmap_p = |
| ioremap(phba->pci_bar1_map, bar1map_len); |
| if (!phba->sli4_hba.ctrl_regs_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for SLI4 HBA control registers.\n"); |
| goto out_iounmap_conf; |
| } |
| lpfc_sli4_bar1_register_memmap(phba); |
| } |
| |
| if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && |
| (pci_resource_start(pdev, 4))) { |
| /* |
| * Map SLI4 if type 0 HBA Doorbell Register base to a kernel |
| * virtual address and setup the registers. |
| */ |
| phba->pci_bar2_map = pci_resource_start(pdev, 4); |
| bar2map_len = pci_resource_len(pdev, 4); |
| phba->sli4_hba.drbl_regs_memmap_p = |
| ioremap(phba->pci_bar2_map, bar2map_len); |
| if (!phba->sli4_hba.drbl_regs_memmap_p) { |
| dev_printk(KERN_ERR, &pdev->dev, |
| "ioremap failed for SLI4 HBA doorbell registers.\n"); |
| goto out_iounmap_ctrl; |
| } |
| error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); |
| if (error) |
| goto out_iounmap_all; |
| } |
| |
| return 0; |
| |
| out_iounmap_all: |
| iounmap(phba->sli4_hba.drbl_regs_memmap_p); |
| out_iounmap_ctrl: |
| iounmap(phba->sli4_hba.ctrl_regs_memmap_p); |
| out_iounmap_conf: |
| iounmap(phba->sli4_hba.conf_regs_memmap_p); |
| out: |
| return error; |
| } |
| |
| /** |
| * lpfc_sli4_pci_mem_unset - Unset SLI4 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-4 interface spec. |
| **/ |
| static void |
| lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) |
| { |
| uint32_t if_type; |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| iounmap(phba->sli4_hba.drbl_regs_memmap_p); |
| iounmap(phba->sli4_hba.ctrl_regs_memmap_p); |
| iounmap(phba->sli4_hba.conf_regs_memmap_p); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| iounmap(phba->sli4_hba.conf_regs_memmap_p); |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| dev_printk(KERN_ERR, &phba->pcidev->dev, |
| "FATAL - unsupported SLI4 interface type - %d\n", |
| if_type); |
| break; |
| } |
| } |
| |
| /** |
| * 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 - successful |
| * 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 - successful |
| * 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 - successful |
| * 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_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI-X interrupt vectors to device |
| * with SLI-4 interface spec. 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 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli4_enable_msix(struct lpfc_hba *phba) |
| { |
| int vectors, rc, index; |
| |
| /* Set up MSI-X multi-message vectors */ |
| for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) |
| phba->sli4_hba.msix_entries[index].entry = index; |
| |
| /* Configure MSI-X capability structure */ |
| vectors = phba->sli4_hba.cfg_eqn; |
| enable_msix_vectors: |
| rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, |
| vectors); |
| if (rc > 1) { |
| vectors = rc; |
| goto enable_msix_vectors; |
| } else if (rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0484 PCI enable MSI-X failed (%d)\n", rc); |
| goto msi_fail_out; |
| } |
| |
| /* Log MSI-X vector assignment */ |
| for (index = 0; index < vectors; index++) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0489 MSI-X entry[%d]: vector=x%x " |
| "message=%d\n", index, |
| phba->sli4_hba.msix_entries[index].vector, |
| phba->sli4_hba.msix_entries[index].entry); |
| /* |
| * Assign MSI-X vectors to interrupt handlers |
| */ |
| if (vectors > 1) |
| rc = request_irq(phba->sli4_hba.msix_entries[0].vector, |
| &lpfc_sli4_sp_intr_handler, IRQF_SHARED, |
| LPFC_SP_DRIVER_HANDLER_NAME, phba); |
| else |
| /* All Interrupts need to be handled by one EQ */ |
| rc = request_irq(phba->sli4_hba.msix_entries[0].vector, |
| &lpfc_sli4_intr_handler, IRQF_SHARED, |
| LPFC_DRIVER_NAME, phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0485 MSI-X slow-path request_irq failed " |
| "(%d)\n", rc); |
| goto msi_fail_out; |
| } |
| |
| /* The rest of the vector(s) are associated to fast-path handler(s) */ |
| for (index = 1; index < vectors; index++) { |
| phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; |
| phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; |
| rc = request_irq(phba->sli4_hba.msix_entries[index].vector, |
| &lpfc_sli4_fp_intr_handler, IRQF_SHARED, |
| LPFC_FP_DRIVER_HANDLER_NAME, |
| &phba->sli4_hba.fcp_eq_hdl[index - 1]); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0486 MSI-X fast-path (%d) " |
| "request_irq failed (%d)\n", index, rc); |
| goto cfg_fail_out; |
| } |
| } |
| phba->sli4_hba.msix_vec_nr = vectors; |
| |
| return rc; |
| |
| cfg_fail_out: |
| /* free the irq already requested */ |
| for (--index; index >= 1; index--) |
| free_irq(phba->sli4_hba.msix_entries[index - 1].vector, |
| &phba->sli4_hba.fcp_eq_hdl[index - 1]); |
| |
| /* free the irq already requested */ |
| free_irq(phba->sli4_hba.msix_entries[0].vector, phba); |
| |
| msi_fail_out: |
| /* Unconfigure MSI-X capability structure */ |
| pci_disable_msix(phba->pcidev); |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 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-4 interface spec. |
| **/ |
| static void |
| lpfc_sli4_disable_msix(struct lpfc_hba *phba) |
| { |
| int index; |
| |
| /* Free up MSI-X multi-message vectors */ |
| free_irq(phba->sli4_hba.msix_entries[0].vector, phba); |
| |
| for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) |
| free_irq(phba->sli4_hba.msix_entries[index].vector, |
| &phba->sli4_hba.fcp_eq_hdl[index - 1]); |
| |
| /* Disable MSI-X */ |
| pci_disable_msix(phba->pcidev); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to enable the MSI interrupt mode to device with |
| * SLI-4 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 - successful |
| * other values - error |
| **/ |
| static int |
| lpfc_sli4_enable_msi(struct lpfc_hba *phba) |
| { |
| int rc, index; |
| |
| rc = pci_enable_msi(phba->pcidev); |
| if (!rc) |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0487 PCI enable MSI mode success.\n"); |
| else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0488 PCI enable MSI mode failed (%d)\n", rc); |
| return rc; |
| } |
| |
| rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, |
| IRQF_SHARED, LPFC_DRIVER_NAME, phba); |
| if (rc) { |
| pci_disable_msi(phba->pcidev); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0490 MSI request_irq failed (%d)\n", rc); |
| return rc; |
| } |
| |
| for (index = 0; index < phba->cfg_fcp_eq_count; index++) { |
| phba->sli4_hba.fcp_eq_hdl[index].idx = index; |
| phba->sli4_hba.fcp_eq_hdl[index].phba = phba; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to disable the MSI interrupt mode to device with |
| * SLI-4 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_sli4_disable_msi(struct lpfc_hba *phba) |
| { |
| free_irq(phba->pcidev->irq, phba); |
| pci_disable_msi(phba->pcidev); |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 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-4 |
| * 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 - successful |
| * other values - error |
| **/ |
| static uint32_t |
| lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) |
| { |
| uint32_t intr_mode = LPFC_INTR_ERROR; |
| int retval, index; |
| |
| if (cfg_mode == 2) { |
| /* Preparation before conf_msi mbox cmd */ |
| retval = 0; |
| if (!retval) { |
| /* Now, try to enable MSI-X interrupt mode */ |
| retval = lpfc_sli4_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_sli4_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_sli4_intr_handler, |
| IRQF_SHARED, LPFC_DRIVER_NAME, phba); |
| if (!retval) { |
| /* Indicate initialization to INTx mode */ |
| phba->intr_type = INTx; |
| intr_mode = 0; |
| for (index = 0; index < phba->cfg_fcp_eq_count; |
| index++) { |
| phba->sli4_hba.fcp_eq_hdl[index].idx = index; |
| phba->sli4_hba.fcp_eq_hdl[index].phba = phba; |
| } |
| } |
| } |
| return intr_mode; |
| } |
| |
| /** |
| * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 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-4 interface spec. Depending on the interrupt mode, the driver |
| * will release the interrupt vector(s) for the message signaled interrupt. |
| **/ |
| static void |
| lpfc_sli4_disable_intr(struct lpfc_hba *phba) |
| { |
| /* Disable the currently initialized interrupt mode */ |
| if (phba->intr_type == MSIX) |
| lpfc_sli4_disable_msix(phba); |
| else if (phba->intr_type == MSI) |
| lpfc_sli4_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); |
| |
| kfree(phba->vpi_bmask); |
| kfree(phba->vpi_ids); |
| |
| 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_sli4_unset_hba - Unset SLI4 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-4 interface spec. |
| **/ |
| static void |
| lpfc_sli4_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); |
| |
| phba->pport->work_port_events = 0; |
| |
| /* Stop the SLI4 device port */ |
| lpfc_stop_port(phba); |
| |
| lpfc_sli4_disable_intr(phba); |
| |
| /* Reset SLI4 HBA FCoE function */ |
| lpfc_pci_function_reset(phba); |
| lpfc_sli4_queue_destroy(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy |
| * @phba: Pointer to HBA context object. |
| * |
| * This function is called in the SLI4 code path to wait for completion |
| * of device's XRIs exchange busy. It will check the XRI exchange busy |
| * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after |
| * that, it will check the XRI exchange busy on outstanding FCP and ELS |
| * I/Os every 30 seconds, log error message, and wait forever. Only when |
| * all XRI exchange busy complete, the driver unload shall proceed with |
| * invoking the function reset ioctl mailbox command to the CNA and the |
| * the rest of the driver unload resource release. |
| **/ |
| static void |
| lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) |
| { |
| int wait_time = 0; |
| int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); |
| int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); |
| |
| while (!fcp_xri_cmpl || !els_xri_cmpl) { |
| if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { |
| if (!fcp_xri_cmpl) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2877 FCP XRI exchange busy " |
| "wait time: %d seconds.\n", |
| wait_time/1000); |
| if (!els_xri_cmpl) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2878 ELS XRI exchange busy " |
| "wait time: %d seconds.\n", |
| wait_time/1000); |
| msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); |
| wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; |
| } else { |
| msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); |
| wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; |
| } |
| fcp_xri_cmpl = |
| list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); |
| els_xri_cmpl = |
| list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); |
| } |
| } |
| |
| /** |
| * lpfc_sli4_hba_unset - Unset the fcoe hba |
| * @phba: Pointer to HBA context object. |
| * |
| * This function is called in the SLI4 code path to reset the HBA's FCoE |
| * function. The caller is not required to hold any lock. This routine |
| * issues PCI function reset mailbox command to reset the FCoE function. |
| * At the end of the function, it calls lpfc_hba_down_post function to |
| * free any pending commands. |
| **/ |
| static void |
| lpfc_sli4_hba_unset(struct lpfc_hba *phba) |
| { |
| int wait_cnt = 0; |
| LPFC_MBOXQ_t *mboxq; |
| struct pci_dev *pdev = phba->pcidev; |
| |
| lpfc_stop_hba_timers(phba); |
| phba->sli4_hba.intr_enable = 0; |
| |
| /* |
| * Gracefully wait out the potential current outstanding asynchronous |
| * mailbox command. |
| */ |
| |
| /* First, block any pending async mailbox command from posted */ |
| spin_lock_irq(&phba->hbalock); |
| phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; |
| spin_unlock_irq(&phba->hbalock); |
| /* Now, trying to wait it out if we can */ |
| while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
| msleep(10); |
| if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) |
| break; |
| } |
| /* Forcefully release the outstanding mailbox command if timed out */ |
| if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
| spin_lock_irq(&phba->hbalock); |
| mboxq = phba->sli.mbox_active; |
| mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; |
| __lpfc_mbox_cmpl_put(phba, mboxq); |
| phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| phba->sli.mbox_active = NULL; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /* Abort all iocbs associated with the hba */ |
| lpfc_sli_hba_iocb_abort(phba); |
| |
| /* Wait for completion of device XRI exchange busy */ |
| lpfc_sli4_xri_exchange_busy_wait(phba); |
| |
| /* Disable PCI subsystem interrupt */ |
| lpfc_sli4_disable_intr(phba); |
| |
| /* Disable SR-IOV if enabled */ |
| if (phba->cfg_sriov_nr_virtfn) |
| pci_disable_sriov(pdev); |
| |
| /* Stop kthread signal shall trigger work_done one more time */ |
| kthread_stop(phba->worker_thread); |
| |
| /* Reset SLI4 HBA FCoE function */ |
| lpfc_pci_function_reset(phba); |
| lpfc_sli4_queue_destroy(phba); |
| |
| /* Stop the SLI4 device port */ |
| phba->pport->work_port_events = 0; |
| } |
| |
| /** |
| * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. |
| * @phba: Pointer to HBA context object. |
| * @mboxq: Pointer to the mailboxq memory for the mailbox command response. |
| * |
| * This function is called in the SLI4 code path to read the port's |
| * sli4 capabilities. |
| * |
| * This function may be be called from any context that can block-wait |
| * for the completion. The expectation is that this routine is called |
| * typically from probe_one or from the online routine. |
| **/ |
| int |
| lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| int rc; |
| struct lpfc_mqe *mqe; |
| struct lpfc_pc_sli4_params *sli4_params; |
| uint32_t mbox_tmo; |
| |
| rc = 0; |
| mqe = &mboxq->u.mqe; |
| |
| /* Read the port's SLI4 Parameters port capabilities */ |
| lpfc_pc_sli4_params(mboxq); |
| if (!phba->sli4_hba.intr_enable) |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| else { |
| mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); |
| rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); |
| } |
| |
| if (unlikely(rc)) |
| return 1; |
| |
| sli4_params = &phba->sli4_hba.pc_sli4_params; |
| sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); |
| sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); |
| sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); |
| sli4_params->featurelevel_1 = bf_get(featurelevel_1, |
| &mqe->un.sli4_params); |
| sli4_params->featurelevel_2 = bf_get(featurelevel_2, |
| &mqe->un.sli4_params); |
| sli4_params->proto_types = mqe->un.sli4_params.word3; |
| sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; |
| sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); |
| sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); |
| sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); |
| sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); |
| sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); |
| sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); |
| sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); |
| sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); |
| sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); |
| sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); |
| sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); |
| sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); |
| sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); |
| sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); |
| sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); |
| sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); |
| sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); |
| sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); |
| sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); |
| |
| /* Make sure that sge_supp_len can be handled by the driver */ |
| if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) |
| sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; |
| |
| return rc; |
| } |
| |
| /** |
| * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. |
| * @phba: Pointer to HBA context object. |
| * @mboxq: Pointer to the mailboxq memory for the mailbox command response. |
| * |
| * This function is called in the SLI4 code path to read the port's |
| * sli4 capabilities. |
| * |
| * This function may be be called from any context that can block-wait |
| * for the completion. The expectation is that this routine is called |
| * typically from probe_one or from the online routine. |
| **/ |
| int |
| lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| int rc; |
| struct lpfc_mqe *mqe = &mboxq->u.mqe; |
| struct lpfc_pc_sli4_params *sli4_params; |
| uint32_t mbox_tmo; |
| int length; |
| struct lpfc_sli4_parameters *mbx_sli4_parameters; |
| |
| /* |
| * By default, the driver assumes the SLI4 port requires RPI |
| * header postings. The SLI4_PARAM response will correct this |
| * assumption. |
| */ |
| phba->sli4_hba.rpi_hdrs_in_use = 1; |
| |
| /* Read the port's SLI4 Config Parameters */ |
| length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - |
| sizeof(struct lpfc_sli4_cfg_mhdr)); |
| lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, |
| length, LPFC_SLI4_MBX_EMBED); |
| if (!phba->sli4_hba.intr_enable) |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| else { |
| mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); |
| rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); |
| } |
| if (unlikely(rc)) |
| return rc; |
| sli4_params = &phba->sli4_hba.pc_sli4_params; |
| mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; |
| sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); |
| sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); |
| sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); |
| sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, |
| mbx_sli4_parameters); |
| sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, |
| mbx_sli4_parameters); |
| if (bf_get(cfg_phwq, mbx_sli4_parameters)) |
| phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; |
| else |
| phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; |
| sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; |
| sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); |
| sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); |
| sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); |
| sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); |
| sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); |
| sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, |
| mbx_sli4_parameters); |
| sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, |
| mbx_sli4_parameters); |
| phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); |
| phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); |
| |
| /* Make sure that sge_supp_len can be handled by the driver */ |
| if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) |
| sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; |
| |
| return 0; |
| } |
| |
| /** |
| * 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; |
| struct Scsi_Host *shost = 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) |
| 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; |
| } |
| |
| /* Get the default values for Model Name and Description */ |
| lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); |
| |
| /* 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; |
| } |
| |
| shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ |
| /* 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); |
| if (shost) |
| scsi_host_put(shost); |
| 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 = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| if (vports[i]->port_type == LPFC_PHYSICAL_PORT) |
| continue; |
| 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 disabled 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); |
| |
| kfree(phba->vpi_bmask); |
| kfree(phba->vpi_ids); |
| |
| 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 SR-IOV if enabled */ |
| if (phba->cfg_sriov_nr_virtfn) |
| pci_disable_sriov(pdev); |
| |
| /* 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); |
| |
| /* |
| * As the new kernel behavior of pci_restore_state() API call clears |
| * device saved_state flag, need to save the restored state again. |
| */ |
| pci_save_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_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI3 device for PCI slot recover. It |
| * aborts all the outstanding SCSI I/Os to the pci device. |
| **/ |
| static void |
| lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2723 PCI channel I/O abort preparing for recovery\n"); |
| |
| /* |
| * There may be errored I/Os through HBA, abort all I/Os on txcmplq |
| * and let the SCSI mid-layer to retry them to recover. |
| */ |
| pring = &psli->ring[psli->fcp_ring]; |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| } |
| |
| /** |
| * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI3 device for PCI slot reset. It |
| * disables the device interrupt and pci device, and aborts the internal FCP |
| * pending I/Os. |
| **/ |
| static void |
| lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) |
| { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2710 PCI channel disable preparing for reset\n"); |
| |
| /* Block any management I/Os to the device */ |
| lpfc_block_mgmt_io(phba); |
| |
| /* Block all SCSI devices' I/Os on the host */ |
| lpfc_scsi_dev_block(phba); |
| |
| /* stop all timers */ |
| lpfc_stop_hba_timers(phba); |
| |
| /* Disable interrupt and pci device */ |
| lpfc_sli_disable_intr(phba); |
| pci_disable_device(phba->pcidev); |
| |
| /* Flush all driver's outstanding SCSI I/Os as we are to reset */ |
| lpfc_sli_flush_fcp_rings(phba); |
| } |
| |
| /** |
| * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI3 device for PCI slot permanently |
| * disabling. It blocks the SCSI transport layer traffic and flushes the FCP |
| * pending I/Os. |
| **/ |
| static void |
| lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) |
| { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2711 PCI channel permanent disable for failure\n"); |
| /* Block all SCSI devices' I/Os on the host */ |
| lpfc_scsi_dev_block(phba); |
| |
| /* stop all timers */ |
| lpfc_stop_hba_timers(phba); |
| |
| /* Clean up all driver's outstanding SCSI I/Os */ |
| lpfc_sli_flush_fcp_rings(phba); |
| } |
| |
| /** |
| * 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_CAN_RECOVER - can be recovered with reset_link |
| * 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; |
| |
| switch (state) { |
| case pci_channel_io_normal: |
| /* Non-fatal error, prepare for recovery */ |
| lpfc_sli_prep_dev_for_recover(phba); |
| return PCI_ERS_RESULT_CAN_RECOVER; |
| case pci_channel_io_frozen: |
| /* Fatal error, prepare for slot reset */ |
| lpfc_sli_prep_dev_for_reset(phba); |
| return PCI_ERS_RESULT_NEED_RESET; |
| case pci_channel_io_perm_failure: |
| /* Permanent failure, prepare for device down */ |
| lpfc_sli_prep_dev_for_perm_failure(phba); |
| return PCI_ERS_RESULT_DISCONNECT; |
| default: |
| /* Unknown state, prepare and request slot reset */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0472 Unknown PCI error state: x%x\n", state); |
| lpfc_sli_prep_dev_for_reset(phba); |
| 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); |
| |
| /* |
| * As the new kernel behavior of pci_restore_state() API call clears |
| * device saved_state flag, need to save the restored state again. |
| */ |
| pci_save_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, it will perform cleanup */ |
| lpfc_offline_prep(phba); |
| 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; |
| |
| /* Bring device online, it will be no-op for non-fatal error resume */ |
| lpfc_online(phba); |
| |
| /* Clean up Advanced Error Reporting (AER) if needed */ |
| if (phba->hba_flag & HBA_AER_ENABLED) |
| pci_cleanup_aer_uncorrect_error_status(pdev); |
| } |
| |
| /** |
| * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * returns the number of ELS/CT IOCBs to reserve |
| **/ |
| int |
| lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) |
| { |
| int max_xri = phba->sli4_hba.max_cfg_param.max_xri; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| if (max_xri <= 100) |
| return 10; |
| else if (max_xri <= 256) |
| return 25; |
| else if (max_xri <= 512) |
| return 50; |
| else if (max_xri <= 1024) |
| return 100; |
| else if (max_xri <= 1536) |
| return 150; |
| else if (max_xri <= 2048) |
| return 200; |
| else |
| return 250; |
| } else |
| return 0; |
| } |
| |
| /** |
| * lpfc_write_firmware - attempt to write a firmware image to the port |
| * @phba: pointer to lpfc hba data structure. |
| * @fw: pointer to firmware image returned from request_firmware. |
| * |
| * returns the number of bytes written if write is successful. |
| * returns a negative error value if there were errors. |
| * returns 0 if firmware matches currently active firmware on port. |
| **/ |
| int |
| lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) |
| { |
| char fwrev[FW_REV_STR_SIZE]; |
| struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; |
| struct list_head dma_buffer_list; |
| int i, rc = 0; |
| struct lpfc_dmabuf *dmabuf, *next; |
| uint32_t offset = 0, temp_offset = 0; |
| |
| INIT_LIST_HEAD(&dma_buffer_list); |
| if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || |
| (bf_get_be32(lpfc_grp_hdr_file_type, image) != |
| LPFC_FILE_TYPE_GROUP) || |
| (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || |
| (be32_to_cpu(image->size) != fw->size)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3022 Invalid FW image found. " |
| "Magic:%x Type:%x ID:%x\n", |
| be32_to_cpu(image->magic_number), |
| bf_get_be32(lpfc_grp_hdr_file_type, image), |
| bf_get_be32(lpfc_grp_hdr_id, image)); |
| return -EINVAL; |
| } |
| lpfc_decode_firmware_rev(phba, fwrev, 1); |
| if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3023 Updating Firmware. Current Version:%s " |
| "New Version:%s\n", |
| fwrev, image->revision); |
| for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { |
| dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), |
| GFP_KERNEL); |
| if (!dmabuf) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, |
| SLI4_PAGE_SIZE, |
| &dmabuf->phys, |
| GFP_KERNEL); |
| if (!dmabuf->virt) { |
| kfree(dmabuf); |
| rc = -ENOMEM; |
| goto out; |
| } |
| list_add_tail(&dmabuf->list, &dma_buffer_list); |
| } |
| while (offset < fw->size) { |
| temp_offset = offset; |
| list_for_each_entry(dmabuf, &dma_buffer_list, list) { |
| if (temp_offset + SLI4_PAGE_SIZE > fw->size) { |
| memcpy(dmabuf->virt, |
| fw->data + temp_offset, |
| fw->size - temp_offset); |
| temp_offset = fw->size; |
| break; |
| } |
| memcpy(dmabuf->virt, fw->data + temp_offset, |
| SLI4_PAGE_SIZE); |
| temp_offset += SLI4_PAGE_SIZE; |
| } |
| rc = lpfc_wr_object(phba, &dma_buffer_list, |
| (fw->size - offset), &offset); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "3024 Firmware update failed. " |
| "%d\n", rc); |
| goto out; |
| } |
| } |
| rc = offset; |
| } |
| out: |
| list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { |
| list_del(&dmabuf->list); |
| dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, |
| dmabuf->virt, dmabuf->phys); |
| kfree(dmabuf); |
| } |
| return rc; |
| } |
| |
| /** |
| * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys |
| * @pdev: pointer to PCI device |
| * @pid: pointer to PCI device identifier |
| * |
| * This routine is called from the kernel's PCI subsystem to device with |
| * SLI-4 interface spec. When an Emulex HBA with SLI-4 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_s4(struct pci_dev *pdev, const struct pci_device_id *pid) |
| { |
| struct lpfc_hba *phba; |
| struct lpfc_vport *vport = NULL; |
| struct Scsi_Host *shost = NULL; |
| int error; |
| uint32_t cfg_mode, intr_mode; |
| int mcnt; |
| int adjusted_fcp_eq_count; |
| const struct firmware *fw; |
| uint8_t file_name[16]; |
| |
| /* 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) |
| goto out_free_phba; |
| |
| /* Set up SLI API function jump table for PCI-device group-1 HBAs */ |
| error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); |
| if (error) |
| goto out_disable_pci_dev; |
| |
| /* Set up SLI-4 specific device PCI memory space */ |
| error = lpfc_sli4_pci_mem_setup(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1410 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, |
| "1411 Failed to set up driver resource.\n"); |
| goto out_unset_pci_mem_s4; |
| } |
| |
| /* Set up SLI-4 Specific device driver resources */ |
| error = lpfc_sli4_driver_resource_setup(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1412 Failed to set up driver resource.\n"); |
| goto out_unset_pci_mem_s4; |
| } |
| |
| /* Initialize and populate the iocb list per host */ |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2821 initialize iocb list %d.\n", |
| phba->cfg_iocb_cnt*1024); |
| error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); |
| |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1413 Failed to initialize iocb list.\n"); |
| goto out_unset_driver_resource_s4; |
| } |
| |
| INIT_LIST_HEAD(&phba->active_rrq_list); |
| INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); |
| |
| /* Set up common device driver resources */ |
| error = lpfc_setup_driver_resource_phase2(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1414 Failed to set up driver resource.\n"); |
| goto out_free_iocb_list; |
| } |
| |
| /* Get the default values for Model Name and Description */ |
| lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); |
| |
| /* Create SCSI host to the physical port */ |
| error = lpfc_create_shost(phba); |
| if (error) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1415 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, |
| "1416 Failed to allocate sysfs attr\n"); |
| goto out_destroy_shost; |
| } |
| |
| shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ |
| /* 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_sli4_enable_intr(phba, cfg_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0426 Failed to enable interrupt.\n"); |
| error = -ENODEV; |
| goto out_free_sysfs_attr; |
| } |
| /* Default to single EQ for non-MSI-X */ |
| if (phba->intr_type != MSIX) |
| adjusted_fcp_eq_count = 0; |
| else if (phba->sli4_hba.msix_vec_nr < |
| phba->cfg_fcp_eq_count + 1) |
| adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; |
| else |
| adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; |
| phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; |
| /* Set up SLI-4 HBA */ |
| if (lpfc_sli4_hba_setup(phba)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "1421 Failed to set up hba\n"); |
| error = -ENODEV; |
| goto out_disable_intr; |
| } |
| |
| /* Send NOP mbx cmds for non-INTx mode active interrupt test */ |
| if (intr_mode != 0) |
| mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, |
| LPFC_ACT_INTR_CNT); |
| |
| /* Check active interrupts received only for MSI/MSI-X */ |
| if (intr_mode == 0 || |
| phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { |
| /* Log the current active interrupt mode */ |
| phba->intr_mode = intr_mode; |
| lpfc_log_intr_mode(phba, intr_mode); |
| break; |
| } |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0451 Configure interrupt mode (%d) " |
| "failed active interrupt test.\n", |
| intr_mode); |
| /* Unset the previous SLI-4 HBA setup. */ |
| /* |
| * TODO: Is this operation compatible with IF TYPE 2 |
| * devices? All port state is deleted and cleared. |
| */ |
| lpfc_sli4_unset_hba(phba); |
| /* Try next level of interrupt mode */ |
| cfg_mode = --intr_mode; |
| } |
| |
| /* Perform post initialization setup */ |
| lpfc_post_init_setup(phba); |
| |
| /* check for firmware upgrade or downgrade (if_type 2 only) */ |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| LPFC_SLI_INTF_IF_TYPE_2) { |
| snprintf(file_name, 16, "%s.grp", phba->ModelName); |
| error = request_firmware(&fw, file_name, &phba->pcidev->dev); |
| if (!error) { |
| lpfc_write_firmware(phba, fw); |
| release_firmware(fw); |
| } |
| } |
| |
| /* Check if there are static vports to be created. */ |
| lpfc_create_static_vport(phba); |
| return 0; |
| |
| out_disable_intr: |
| lpfc_sli4_disable_intr(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_s4: |
| lpfc_sli4_driver_resource_unset(phba); |
| out_unset_pci_mem_s4: |
| lpfc_sli4_pci_mem_unset(phba); |
| out_disable_pci_dev: |
| lpfc_disable_pci_dev(phba); |
| if (shost) |
| scsi_host_put(shost); |
| out_free_phba: |
| lpfc_hba_free(phba); |
| return error; |
| } |
| |
| /** |
| * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem |
| * @pdev: pointer to PCI device |
| * |
| * This routine is called from the kernel's PCI subsystem to device with |
| * SLI-4 interface spec. When an Emulex HBA with SLI-4 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_s4(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; |
| |
| /* Mark the device unloading flag */ |
| spin_lock_irq(&phba->hbalock); |
| vport->load_flag |= FC_UNLOADING; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Free the HBA sysfs attributes */ |
| 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 = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| if (vports[i]->port_type == LPFC_PHYSICAL_PORT) |
| continue; |
| 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); |
| |
| /* Perform cleanup on the physical port */ |
| lpfc_cleanup(vport); |
| |
| /* |
| * Bring down the SLI Layer. This step disables all interrupts, |
| * clears the rings, discards all mailbox commands, and resets |
| * the HBA FCoE function. |
| */ |
| lpfc_debugfs_terminate(vport); |
| lpfc_sli4_hba_unset(phba); |
| |
| spin_lock_irq(&phba->hbalock); |
| list_del_init(&vport->listentry); |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Perform scsi free before driver resource_unset since scsi |
| * buffers are released to their corresponding pools here. |
| */ |
| lpfc_scsi_free(phba); |
| lpfc_sli4_driver_resource_unset(phba); |
| |
| /* Unmap adapter Control and Doorbell registers */ |
| lpfc_sli4_pci_mem_unset(phba); |
| |
| /* Release PCI resources and disable device's PCI function */ |
| scsi_host_put(shost); |
| lpfc_disable_pci_dev(phba); |
| |
| /* Finally, free the driver's device data structure */ |
| lpfc_hba_free(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt |
| * @pdev: pointer to PCI device |
| * @msg: power management message |
| * |
| * This routine is called from the kernel's PCI subsystem to support system |
| * Power Management (PM) to device with SLI-4 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 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_s4(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, |
| "2843 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_sli4_disable_intr(phba); |
| lpfc_sli4_queue_destroy(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_s4 - PCI func to resume SLI-4 device for power mgmnt |
| * @pdev: pointer to PCI device |
| * |
| * This routine is called from the kernel's PCI subsystem to support system |
| * Power Management (PM) to device with SLI-4 interface spac. 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_s4(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, |
| "0292 PCI device Power Management resume.\n"); |
| |
| /* Restore device state from PCI config space */ |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| |
| /* |
| * As the new kernel behavior of pci_restore_state() API call clears |
| * device saved_state flag, need to save the restored state again. |
| */ |
| pci_save_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, |
| "0293 PM resume failed to start worker " |
| "thread: error=x%x.\n", error); |
| return error; |
| } |
| |
| /* Configure and enable interrupt */ |
| intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0294 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_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI4 device for PCI slot recover. It |
| * aborts all the outstanding SCSI I/Os to the pci device. |
| **/ |
| static void |
| lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2828 PCI channel I/O abort preparing for recovery\n"); |
| /* |
| * There may be errored I/Os through HBA, abort all I/Os on txcmplq |
| * and let the SCSI mid-layer to retry them to recover. |
| */ |
| pring = &psli->ring[psli->fcp_ring]; |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| } |
| |
| /** |
| * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI4 device for PCI slot reset. It |
| * disables the device interrupt and pci device, and aborts the internal FCP |
| * pending I/Os. |
| **/ |
| static void |
| lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) |
| { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2826 PCI channel disable preparing for reset\n"); |
| |
| /* Block any management I/Os to the device */ |
| lpfc_block_mgmt_io(phba); |
| |
| /* Block all SCSI devices' I/Os on the host */ |
| lpfc_scsi_dev_block(phba); |
| |
| /* stop all timers */ |
| lpfc_stop_hba_timers(phba); |
| |
| /* Disable interrupt and pci device */ |
| lpfc_sli4_disable_intr(phba); |
| lpfc_sli4_queue_destroy(phba); |
| pci_disable_device(phba->pcidev); |
| |
| /* Flush all driver's outstanding SCSI I/Os as we are to reset */ |
| lpfc_sli_flush_fcp_rings(phba); |
| } |
| |
| /** |
| * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to prepare the SLI4 device for PCI slot permanently |
| * disabling. It blocks the SCSI transport layer traffic and flushes the FCP |
| * pending I/Os. |
| **/ |
| static void |
| lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) |
| { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2827 PCI channel permanent disable for failure\n"); |
| |
| /* Block all SCSI devices' I/Os on the host */ |
| lpfc_scsi_dev_block(phba); |
| |
| /* stop all timers */ |
| lpfc_stop_hba_timers(phba); |
| |
| /* Clean up all driver's outstanding SCSI I/Os */ |
| lpfc_sli_flush_fcp_rings(phba); |
| } |
| |
| /** |
| * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device |
| * @pdev: pointer to PCI device. |
| * @state: the current PCI connection state. |
| * |
| * This routine is called from the PCI subsystem for error handling to device |
| * with SLI-4 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_s4(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; |
| |
| switch (state) { |
| case pci_channel_io_normal: |
| /* Non-fatal error, prepare for recovery */ |
| lpfc_sli4_prep_dev_for_recover(phba); |
| return PCI_ERS_RESULT_CAN_RECOVER; |
| case pci_channel_io_frozen: |
| /* Fatal error, prepare for slot reset */ |
| lpfc_sli4_prep_dev_for_reset(phba); |
| return PCI_ERS_RESULT_NEED_RESET; |
| case pci_channel_io_perm_failure: |
| /* Permanent failure, prepare for device down */ |
| lpfc_sli4_prep_dev_for_perm_failure(phba); |
| return PCI_ERS_RESULT_DISCONNECT; |
| default: |
| /* Unknown state, prepare and request slot reset */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2825 Unknown PCI error state: x%x\n", state); |
| lpfc_sli4_prep_dev_for_reset(phba); |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| } |
| |
| /** |
| * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch |
| * @pdev: pointer to PCI device. |
| * |
| * This routine is called from the PCI subsystem for error handling to device |
| * with SLI-4 interface spec. It 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 the 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_s4(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); |
| |
| /* |
| * As the new kernel behavior of pci_restore_state() API call clears |
| * device saved_state flag, need to save the restored state again. |
| */ |
| pci_save_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_sli4_enable_intr(phba, phba->intr_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2824 Cannot re-enable interrupt after " |
| "slot reset.\n"); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } else |
| phba->intr_mode = intr_mode; |
| |
| /* Log the current active interrupt mode */ |
| lpfc_log_intr_mode(phba, phba->intr_mode); |
| |
| return PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| /** |
| * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device |
| * @pdev: pointer to PCI device |
| * |
| * This routine is called from the PCI subsystem for error handling to device |
| * with SLI-4 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_s4(struct pci_dev *pdev) |
| { |
| struct Scsi_Host *shost = pci_get_drvdata(pdev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| |
| /* |
| * In case of slot reset, as function reset is performed through |
| * mailbox command which needs DMA to be enabled, this operation |
| * has to be moved to the io resume phase. Taking device offline |
| * will perform the necessary cleanup. |
| */ |
| if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { |
| /* Perform device reset */ |
| lpfc_offline_prep(phba); |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| /* Bring the device back online */ |
| lpfc_online(phba); |
| } |
| |
| /* Clean up Advanced Error Reporting (AER) if needed */ |
| if (phba->hba_flag & HBA_AER_ENABLED) |
| pci_cleanup_aer_uncorrect_error_status(pdev); |
| } |
| |
| /** |
| * 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; |
| struct lpfc_sli_intf intf; |
| |
| if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) |
| return -ENODEV; |
| |
| if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && |
| (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) |
| rc = lpfc_pci_probe_one_s4(pdev, pid); |
| else |
| rc = lpfc_pci_probe_one_s3(pdev, pid); |
| |
| 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; |
| case LPFC_PCI_DEV_OC: |
| lpfc_pci_remove_one_s4(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; |
| case LPFC_PCI_DEV_OC: |
| rc = lpfc_pci_suspend_one_s4(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; |
| case LPFC_PCI_DEV_OC: |
| rc = lpfc_pci_resume_one_s4(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; |
| case LPFC_PCI_DEV_OC: |
| rc = lpfc_io_error_detected_s4(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; |
| case LPFC_PCI_DEV_OC: |
| rc = lpfc_io_slot_reset_s4(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; |
| case LPFC_PCI_DEV_OC: |
| lpfc_io_resume_s4(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; |
| } |
| |
| /** |
| * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace |
| * @inode: pointer to the inode representing the lpfcmgmt device |
| * @filep: pointer to the file representing the open lpfcmgmt device |
| * |
| * This routine puts a reference count on the lpfc module whenever the |
| * character device is opened |
| **/ |
| static int |
| lpfc_mgmt_open(struct inode *inode, struct file *filep) |
| { |
| try_module_get(THIS_MODULE); |
| return 0; |
| } |
| |
| /** |
| * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace |
| * @inode: pointer to the inode representing the lpfcmgmt device |
| * @filep: pointer to the file representing the open lpfcmgmt device |
| * |
| * This routine removes a reference count from the lpfc module when the |
| * character device is closed |
| **/ |
| static int |
| lpfc_mgmt_release(struct inode *inode, struct file *filep) |
| { |
| module_put(THIS_MODULE); |
| return 0; |
| } |
| |
| 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_TOMCAT, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, |
| PCI_ANY_ID, PCI_ANY_ID, }, |
| {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, |
| 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, |
| }; |
| |
| static const struct file_operations lpfc_mgmt_fop = { |
| .open = lpfc_mgmt_open, |
| .release = lpfc_mgmt_release, |
| }; |
| |
| static struct miscdevice lpfc_mgmt_dev = { |
| .minor = MISC_DYNAMIC_MINOR, |
| .name = "lpfcmgmt", |
| .fops = &lpfc_mgmt_fop, |
| }; |
| |
| /** |
| * 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"); |
| |
| error = misc_register(&lpfc_mgmt_dev); |
| if (error) |
| printk(KERN_ERR "Could not register lpfcmgmt device, " |
| "misc_register returned with status %d", error); |
| |
| 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) |
| { |
| misc_deregister(&lpfc_mgmt_dev); |
| 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 "9062 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 "9049 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); |