/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2007 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2008 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
int
lpfc_hba_down_prep(struct lpfc_hba *phba)
{
+ struct lpfc_vport **vports;
+ int i;
/* Disable interrupts */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- lpfc_cleanup_discovery_resources(phba->pport);
+ 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_vpi && vports[i] != NULL; i++)
+ lpfc_cleanup_discovery_resources(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ }
return 0;
}
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 (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);
}
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;
}
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) {
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;
spin_unlock_irq(shost->host_lock);
}
+static int
+lpfc_enable_msix(struct lpfc_hba *phba)
+{
+ int error;
+
+ phba->msix_entries[0].entry = 0;
+ phba->msix_entries[0].vector = 0;
+
+ error = pci_enable_msix(phba->pcidev, phba->msix_entries,
+ ARRAY_SIZE(phba->msix_entries));
+ if (error) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0420 Enable MSI-X failed (%d), continuing "
+ "with MSI\n", error);
+ pci_disable_msix(phba->pcidev);
+ return error;
+ }
+
+ error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0,
+ LPFC_DRIVER_NAME, phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0421 MSI-X request_irq failed (%d), "
+ "continuing with MSI\n", error);
+ pci_disable_msix(phba->pcidev);
+ }
+ return error;
+}
+
+static void
+lpfc_disable_msix(struct lpfc_hba *phba)
+{
+ free_irq(phba->msix_entries[0].vector, phba);
+ pci_disable_msix(phba->pcidev);
+}
+
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
uint16_t iotag;
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
- if (pci_enable_device_bars(pdev, bars))
+ if (pci_enable_device_mem(pdev))
goto out;
if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
goto out_disable_device;
spin_lock_init(&phba->hbalock);
+ /* Initialize ndlp management spinlock */
+ spin_lock_init(&phba->ndlp_lock);
+
phba->pcidev = pdev;
/* Assign an unused board number */
lpfc_debugfs_initialize(vport);
pci_set_drvdata(pdev, shost);
+ phba->intr_type = NONE;
- if (phba->cfg_use_msi) {
+ if (phba->cfg_use_msi == 2) {
+ error = lpfc_enable_msix(phba);
+ if (!error)
+ phba->intr_type = MSIX;
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
retval = pci_enable_msi(phba->pcidev);
if (!retval)
- phba->using_msi = 1;
+ phba->intr_type = MSI;
else
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0452 Enable MSI failed, continuing "
"with IRQ\n");
}
- retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
- LPFC_DRIVER_NAME, phba);
- if (retval) {
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0451 Enable interrupt handler failed\n");
- error = retval;
- goto out_disable_msi;
+ /* MSI-X is the only case the doesn't need to call request_irq */
+ if (phba->intr_type != MSIX) {
+ retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (retval) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
+ "interrupt handler failed\n");
+ error = retval;
+ goto out_disable_msi;
+ } else if (phba->intr_type != MSI)
+ phba->intr_type = INTx;
}
phba->MBslimaddr = phba->slim_memmap_p;
out_free_irq:
lpfc_stop_phba_timers(phba);
phba->pport->work_port_events = 0;
- free_irq(phba->pcidev->irq, phba);
+
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else
+ free_irq(phba->pcidev->irq, phba);
+
out_disable_msi:
- if (phba->using_msi)
+ if (phba->intr_type == MSI)
pci_disable_msi(phba->pcidev);
destroy_port(vport);
out_kthread_stop:
lpfc_debugfs_terminate(vport);
- /* Release the irq reservation */
- free_irq(phba->pcidev->irq, phba);
- if (phba->using_msi)
- pci_disable_msi(phba->pcidev);
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else {
+ free_irq(phba->pcidev->irq, phba);
+ if (phba->intr_type == MSI)
+ pci_disable_msi(phba->pcidev);
+ }
pci_set_drvdata(pdev, NULL);
scsi_host_put(shost);
pring = &psli->ring[psli->fcp_ring];
lpfc_sli_abort_iocb_ring(phba, pring);
- /* Release the irq reservation */
- free_irq(phba->pcidev->irq, phba);
- if (phba->using_msi)
- pci_disable_msi(phba->pcidev);
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else {
+ free_irq(phba->pcidev->irq, phba);
+ if (phba->intr_type == MSI)
+ pci_disable_msi(phba->pcidev);
+ }
/* Request a slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
projects / mirror_ubuntu-bionic-kernel.git / blobdiff