[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
NPIV support is added to the driver. It utilizes the interfaces of the fc transport for the creation and deletion of vports. Within the driver, a new Scsi_Host is created for each NPIV instance, and is paired with a new instance of a FC port. This allows N FC Port elements to share a single Adapter. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart
committed by
James Bottomley
James Bottomley
parent
ed95768429
commit
92d7f7b0cd
@@ -39,6 +39,7 @@
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#include "lpfc_version.h"
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#include "lpfc_compat.h"
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#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#define LPFC_DEF_DEVLOSS_TMO 30
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#define LPFC_MIN_DEVLOSS_TMO 1
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@@ -139,7 +140,7 @@ lpfc_fwrev_show(struct class_device *cdev, char *buf)
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char fwrev[32];
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lpfc_decode_firmware_rev(phba, fwrev, 1);
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return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
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return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
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}
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static ssize_t
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@@ -178,10 +179,11 @@ lpfc_state_show(struct class_device *cdev, char *buf)
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case LPFC_INIT_MBX_CMDS:
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case LPFC_LINK_DOWN:
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case LPFC_HBA_ERROR:
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len += snprintf(buf + len, PAGE_SIZE-len, "Link Down");
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len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
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break;
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case LPFC_LINK_UP:
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case LPFC_CLEAR_LA:
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case LPFC_HBA_READY:
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len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
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switch (vport->port_state) {
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@@ -190,8 +192,9 @@ lpfc_state_show(struct class_device *cdev, char *buf)
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break;
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case LPFC_LOCAL_CFG_LINK:
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len += snprintf(buf + len, PAGE_SIZE-len,
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"configuring\n");
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"Configuring Link\n");
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break;
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case LPFC_FDISC:
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case LPFC_FLOGI:
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case LPFC_FABRIC_CFG_LINK:
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case LPFC_NS_REG:
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@@ -205,7 +208,11 @@ lpfc_state_show(struct class_device *cdev, char *buf)
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len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
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break;
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case LPFC_STATE_UNKNOWN:
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case LPFC_VPORT_FAILED:
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len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
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break;
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case LPFC_VPORT_UNKNOWN:
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len += snprintf(buf + len, PAGE_SIZE - len,
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"Unknown\n");
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break;
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@@ -432,6 +439,151 @@ lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
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return -EIO;
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}
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static ssize_t
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lpfc_max_vpi_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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return snprintf(buf, PAGE_SIZE, "%d\n", phba->max_vpi);
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}
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static ssize_t
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lpfc_used_vpi_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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/* Don't count the physical port */
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return snprintf(buf, PAGE_SIZE, "%d\n", phba->vpi_cnt-1);
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}
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int
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lpfc_get_hba_info(struct lpfc_hba *phba, uint32_t *mxri,
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uint32_t *axri, uint32_t *mrpi, uint32_t *arpi)
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{
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struct lpfc_sli *psli = &phba->sli;
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LPFC_MBOXQ_t *pmboxq;
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MAILBOX_t *pmb;
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int rc = 0;
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/*
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* prevent udev from issuing mailbox commands until the port is
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* configured.
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*/
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if (phba->link_state < LPFC_LINK_DOWN ||
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!phba->mbox_mem_pool ||
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(phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
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return 0;
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if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
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return 0;
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pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
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if (!pmboxq)
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return 0;
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memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
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pmb = &pmboxq->mb;
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pmb->mbxCommand = MBX_READ_CONFIG;
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pmb->mbxOwner = OWN_HOST;
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pmboxq->context1 = NULL;
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if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
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(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
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rc = MBX_NOT_FINISHED;
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else
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rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
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if (rc != MBX_SUCCESS) {
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if (rc == MBX_TIMEOUT)
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pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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else
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mempool_free(pmboxq, phba->mbox_mem_pool);
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return 0;
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}
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if (mrpi)
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*mrpi = pmb->un.varRdConfig.max_rpi;
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if (arpi)
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*arpi = pmb->un.varRdConfig.avail_rpi;
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if (mxri)
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*mxri = pmb->un.varRdConfig.max_xri;
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if (axri)
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*axri = pmb->un.varRdConfig.avail_xri;
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mempool_free(pmboxq, phba->mbox_mem_pool);
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return 1;
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}
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static ssize_t
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lpfc_max_rpi_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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uint32_t cnt;
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if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL))
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return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
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return snprintf(buf, PAGE_SIZE, "Unknown\n");
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}
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static ssize_t
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lpfc_used_rpi_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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uint32_t cnt, acnt;
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if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt))
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return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
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return snprintf(buf, PAGE_SIZE, "Unknown\n");
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}
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static ssize_t
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lpfc_max_xri_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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uint32_t cnt;
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if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL))
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return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
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return snprintf(buf, PAGE_SIZE, "Unknown\n");
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}
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static ssize_t
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lpfc_used_xri_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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uint32_t cnt, acnt;
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if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL))
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return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
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return snprintf(buf, PAGE_SIZE, "Unknown\n");
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}
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static ssize_t
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lpfc_npiv_info_show(struct class_device *cdev, char *buf)
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{
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struct Scsi_Host *shost = class_to_shost(cdev);
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struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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if (!(phba->max_vpi))
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return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
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if (vport->port_type == LPFC_PHYSICAL_PORT)
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return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
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return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
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}
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static ssize_t
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lpfc_poll_show(struct class_device *cdev, char *buf)
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{
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@@ -640,6 +792,13 @@ static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
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static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
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lpfc_board_mode_show, lpfc_board_mode_store);
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static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
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static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
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static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
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static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
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static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
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static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
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static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
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static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
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static char *lpfc_soft_wwn_key = "C99G71SL8032A";
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@@ -829,6 +988,17 @@ MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
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static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
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lpfc_poll_show, lpfc_poll_store);
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int lpfc_sli_mode = 0;
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module_param(lpfc_sli_mode, int, 0);
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MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
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" 0 - auto (SLI-3 if supported),"
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" 2 - select SLI-2 even on SLI-3 capable HBAs,"
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" 3 - select SLI-3");
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int lpfc_npiv_enable = 0;
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module_param(lpfc_npiv_enable, int, 0);
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MODULE_PARM_DESC(lpfc_npiv_enable, "Enable NPIV functionality");
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/*
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# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
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# until the timer expires. Value range is [0,255]. Default value is 30.
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@@ -984,6 +1154,33 @@ LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
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LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
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"Max number of FCP commands we can queue to a lpfc HBA");
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/*
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# peer_port_login: This parameter allows/prevents logins
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# between peer ports hosted on the same physical port.
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# When this parameter is set 0 peer ports of same physical port
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# are not allowed to login to each other.
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# When this parameter is set 1 peer ports of same physical port
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# are allowed to login to each other.
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# Default value of this parameter is 0.
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*/
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LPFC_ATTR_R(peer_port_login, 0, 0, 1,
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"Allow peer ports on the same physical port to login to each "
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"other.");
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/*
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# vport_restrict_login: This parameter allows/prevents logins
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# between Virtual Ports and remote initiators.
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# When this parameter is not set (0) Virtual Ports will accept PLOGIs from
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# other initiators and will attempt to PLOGI all remote ports.
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# When this parameter is set (1) Virtual Ports will reject PLOGIs from
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# remote ports and will not attempt to PLOGI to other initiators.
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# This parameter does not restrict to the physical port.
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# This parameter does not restrict logins to Fabric resident remote ports.
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# Default value of this parameter is 1.
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*/
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LPFC_ATTR_RW(vport_restrict_login, 1, 0, 1,
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"Restrict virtual ports login to remote initiators.");
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/*
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# Some disk devices have a "select ID" or "select Target" capability.
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# From a protocol standpoint "select ID" usually means select the
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@@ -1127,6 +1324,7 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
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LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
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struct class_device_attribute *lpfc_hba_attrs[] = {
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&class_device_attr_info,
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&class_device_attr_serialnum,
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@@ -1143,6 +1341,8 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
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&class_device_attr_lpfc_log_verbose,
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&class_device_attr_lpfc_lun_queue_depth,
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&class_device_attr_lpfc_hba_queue_depth,
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&class_device_attr_lpfc_peer_port_login,
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&class_device_attr_lpfc_vport_restrict_login,
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&class_device_attr_lpfc_nodev_tmo,
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&class_device_attr_lpfc_devloss_tmo,
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&class_device_attr_lpfc_fcp_class,
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@@ -1161,6 +1361,13 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
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&class_device_attr_nport_evt_cnt,
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&class_device_attr_management_version,
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&class_device_attr_board_mode,
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&class_device_attr_max_vpi,
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&class_device_attr_used_vpi,
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&class_device_attr_max_rpi,
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&class_device_attr_used_rpi,
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&class_device_attr_max_xri,
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&class_device_attr_used_xri,
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&class_device_attr_npiv_info,
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&class_device_attr_issue_reset,
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&class_device_attr_lpfc_poll,
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&class_device_attr_lpfc_poll_tmo,
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@@ -1299,7 +1506,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
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} else {
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if (phba->sysfs_mbox.state != SMBOX_WRITING ||
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phba->sysfs_mbox.offset != off ||
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phba->sysfs_mbox.mbox == NULL ) {
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phba->sysfs_mbox.mbox == NULL) {
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sysfs_mbox_idle(phba);
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spin_unlock_irq(&phba->hbalock);
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return -EAGAIN;
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@@ -1406,6 +1613,8 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
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return -EPERM;
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}
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phba->sysfs_mbox.mbox->vport = vport;
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if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
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sysfs_mbox_idle(phba);
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spin_unlock_irq(&phba->hbalock);
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@@ -1480,12 +1689,12 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
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int error;
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error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
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&sysfs_ctlreg_attr);
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&sysfs_ctlreg_attr);
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if (error)
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goto out;
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error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
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&sysfs_mbox_attr);
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&sysfs_mbox_attr);
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if (error)
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goto out_remove_ctlreg_attr;
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@@ -1527,7 +1736,9 @@ lpfc_get_host_port_type(struct Scsi_Host *shost)
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spin_lock_irq(shost->host_lock);
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if (lpfc_is_link_up(phba)) {
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if (vport->port_type == LPFC_NPIV_PORT) {
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fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
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} else if (lpfc_is_link_up(phba)) {
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if (phba->fc_topology == TOPOLOGY_LOOP) {
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if (vport->fc_flag & FC_PUBLIC_LOOP)
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fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
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@@ -1563,6 +1774,7 @@ lpfc_get_host_port_state(struct Scsi_Host *shost)
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break;
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case LPFC_LINK_UP:
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case LPFC_CLEAR_LA:
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case LPFC_HBA_READY:
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/* Links up, beyond this port_type reports state */
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fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
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break;
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@@ -1644,13 +1856,14 @@ lpfc_get_stats(struct Scsi_Host *shost)
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unsigned long seconds;
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int rc = 0;
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/* prevent udev from issuing mailbox commands
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* until the port is configured.
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*/
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/*
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* prevent udev from issuing mailbox commands until the port is
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* configured.
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*/
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if (phba->link_state < LPFC_LINK_DOWN ||
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!phba->mbox_mem_pool ||
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(phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
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return NULL;
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return NULL;
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if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
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return NULL;
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@@ -1664,6 +1877,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
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pmb->mbxCommand = MBX_READ_STATUS;
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pmb->mbxOwner = OWN_HOST;
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pmboxq->context1 = NULL;
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pmboxq->vport = vport;
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if ((vport->fc_flag & FC_OFFLINE_MODE) ||
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(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
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@@ -1690,6 +1904,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
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pmb->mbxCommand = MBX_READ_LNK_STAT;
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pmb->mbxOwner = OWN_HOST;
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pmboxq->context1 = NULL;
|
||||
pmboxq->vport = vport;
|
||||
|
||||
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
|
||||
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
||||
@@ -1701,7 +1916,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
|
||||
if (rc == MBX_TIMEOUT)
|
||||
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
||||
else
|
||||
mempool_free( pmboxq, phba->mbox_mem_pool);
|
||||
mempool_free(pmboxq, phba->mbox_mem_pool);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
@@ -1769,6 +1984,7 @@ lpfc_reset_stats(struct Scsi_Host *shost)
|
||||
pmb->mbxOwner = OWN_HOST;
|
||||
pmb->un.varWords[0] = 0x1; /* reset request */
|
||||
pmboxq->context1 = NULL;
|
||||
pmboxq->vport = vport;
|
||||
|
||||
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
|
||||
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
||||
@@ -1788,6 +2004,7 @@ lpfc_reset_stats(struct Scsi_Host *shost)
|
||||
pmb->mbxCommand = MBX_READ_LNK_STAT;
|
||||
pmb->mbxOwner = OWN_HOST;
|
||||
pmboxq->context1 = NULL;
|
||||
pmboxq->vport = vport;
|
||||
|
||||
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
|
||||
(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
|
||||
@@ -1950,6 +2167,69 @@ struct fc_function_template lpfc_transport_functions = {
|
||||
.issue_fc_host_lip = lpfc_issue_lip,
|
||||
.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
|
||||
.terminate_rport_io = lpfc_terminate_rport_io,
|
||||
|
||||
.vport_create = lpfc_vport_create,
|
||||
.vport_delete = lpfc_vport_delete,
|
||||
.dd_fcvport_size = sizeof(struct lpfc_vport *),
|
||||
};
|
||||
|
||||
struct fc_function_template lpfc_vport_transport_functions = {
|
||||
/* fixed attributes the driver supports */
|
||||
.show_host_node_name = 1,
|
||||
.show_host_port_name = 1,
|
||||
.show_host_supported_classes = 1,
|
||||
.show_host_supported_fc4s = 1,
|
||||
.show_host_supported_speeds = 1,
|
||||
.show_host_maxframe_size = 1,
|
||||
|
||||
/* dynamic attributes the driver supports */
|
||||
.get_host_port_id = lpfc_get_host_port_id,
|
||||
.show_host_port_id = 1,
|
||||
|
||||
.get_host_port_type = lpfc_get_host_port_type,
|
||||
.show_host_port_type = 1,
|
||||
|
||||
.get_host_port_state = lpfc_get_host_port_state,
|
||||
.show_host_port_state = 1,
|
||||
|
||||
/* active_fc4s is shown but doesn't change (thus no get function) */
|
||||
.show_host_active_fc4s = 1,
|
||||
|
||||
.get_host_speed = lpfc_get_host_speed,
|
||||
.show_host_speed = 1,
|
||||
|
||||
.get_host_fabric_name = lpfc_get_host_fabric_name,
|
||||
.show_host_fabric_name = 1,
|
||||
|
||||
/*
|
||||
* The LPFC driver treats linkdown handling as target loss events
|
||||
* so there are no sysfs handlers for link_down_tmo.
|
||||
*/
|
||||
|
||||
.get_fc_host_stats = lpfc_get_stats,
|
||||
.reset_fc_host_stats = lpfc_reset_stats,
|
||||
|
||||
.dd_fcrport_size = sizeof(struct lpfc_rport_data),
|
||||
.show_rport_maxframe_size = 1,
|
||||
.show_rport_supported_classes = 1,
|
||||
|
||||
.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
|
||||
.show_rport_dev_loss_tmo = 1,
|
||||
|
||||
.get_starget_port_id = lpfc_get_starget_port_id,
|
||||
.show_starget_port_id = 1,
|
||||
|
||||
.get_starget_node_name = lpfc_get_starget_node_name,
|
||||
.show_starget_node_name = 1,
|
||||
|
||||
.get_starget_port_name = lpfc_get_starget_port_name,
|
||||
.show_starget_port_name = 1,
|
||||
|
||||
.issue_fc_host_lip = lpfc_issue_lip,
|
||||
.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
|
||||
.terminate_rport_io = lpfc_terminate_rport_io,
|
||||
|
||||
.vport_disable = lpfc_vport_disable,
|
||||
};
|
||||
|
||||
void
|
||||
@@ -1972,6 +2252,8 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
|
||||
lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
|
||||
lpfc_max_luns_init(phba, lpfc_max_luns);
|
||||
lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
|
||||
lpfc_peer_port_login_init(phba, lpfc_peer_port_login);
|
||||
lpfc_vport_restrict_login_init(phba, lpfc_vport_restrict_login);
|
||||
lpfc_use_msi_init(phba, lpfc_use_msi);
|
||||
lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
|
||||
lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
|
||||
|
||||
Reference in New Issue
Block a user