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path: root/drivers/scsi/lpfc/lpfc_init.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c154
1 files changed, 132 insertions, 22 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 6cfeba7454d4..22843751c2ca 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1,7 +1,7 @@
1/******************************************************************* 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for * 2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. * 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. * 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. * 5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com * 6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -461,11 +461,21 @@ lpfc_config_port_post(struct lpfc_hba *phba)
461int 461int
462lpfc_hba_down_prep(struct lpfc_hba *phba) 462lpfc_hba_down_prep(struct lpfc_hba *phba)
463{ 463{
464 struct lpfc_vport **vports;
465 int i;
464 /* Disable interrupts */ 466 /* Disable interrupts */
465 writel(0, phba->HCregaddr); 467 writel(0, phba->HCregaddr);
466 readl(phba->HCregaddr); /* flush */ 468 readl(phba->HCregaddr); /* flush */
467 469
468 lpfc_cleanup_discovery_resources(phba->pport); 470 if (phba->pport->load_flag & FC_UNLOADING)
471 lpfc_cleanup_discovery_resources(phba->pport);
472 else {
473 vports = lpfc_create_vport_work_array(phba);
474 if (vports != NULL)
475 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
476 lpfc_cleanup_discovery_resources(vports[i]);
477 lpfc_destroy_vport_work_array(phba, vports);
478 }
469 return 0; 479 return 0;
470} 480}
471 481
@@ -1422,9 +1432,32 @@ lpfc_cleanup(struct lpfc_vport *vport)
1422 lpfc_port_link_failure(vport); 1432 lpfc_port_link_failure(vport);
1423 1433
1424 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1434 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1435 if (!NLP_CHK_NODE_ACT(ndlp)) {
1436 ndlp = lpfc_enable_node(vport, ndlp,
1437 NLP_STE_UNUSED_NODE);
1438 if (!ndlp)
1439 continue;
1440 spin_lock_irq(&phba->ndlp_lock);
1441 NLP_SET_FREE_REQ(ndlp);
1442 spin_unlock_irq(&phba->ndlp_lock);
1443 /* Trigger the release of the ndlp memory */
1444 lpfc_nlp_put(ndlp);
1445 continue;
1446 }
1447 spin_lock_irq(&phba->ndlp_lock);
1448 if (NLP_CHK_FREE_REQ(ndlp)) {
1449 /* The ndlp should not be in memory free mode already */
1450 spin_unlock_irq(&phba->ndlp_lock);
1451 continue;
1452 } else
1453 /* Indicate request for freeing ndlp memory */
1454 NLP_SET_FREE_REQ(ndlp);
1455 spin_unlock_irq(&phba->ndlp_lock);
1456
1425 if (ndlp->nlp_type & NLP_FABRIC) 1457 if (ndlp->nlp_type & NLP_FABRIC)
1426 lpfc_disc_state_machine(vport, ndlp, NULL, 1458 lpfc_disc_state_machine(vport, ndlp, NULL,
1427 NLP_EVT_DEVICE_RECOVERY); 1459 NLP_EVT_DEVICE_RECOVERY);
1460
1428 lpfc_disc_state_machine(vport, ndlp, NULL, 1461 lpfc_disc_state_machine(vport, ndlp, NULL,
1429 NLP_EVT_DEVICE_RM); 1462 NLP_EVT_DEVICE_RM);
1430 } 1463 }
@@ -1438,6 +1471,17 @@ lpfc_cleanup(struct lpfc_vport *vport)
1438 if (i++ > 3000) { 1471 if (i++ > 3000) {
1439 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1472 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1440 "0233 Nodelist not empty\n"); 1473 "0233 Nodelist not empty\n");
1474 list_for_each_entry_safe(ndlp, next_ndlp,
1475 &vport->fc_nodes, nlp_listp) {
1476 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
1477 LOG_NODE,
1478 "0282: did:x%x ndlp:x%p "
1479 "usgmap:x%x refcnt:%d\n",
1480 ndlp->nlp_DID, (void *)ndlp,
1481 ndlp->nlp_usg_map,
1482 atomic_read(
1483 &ndlp->kref.refcount));
1484 }
1441 break; 1485 break;
1442 } 1486 }
1443 1487
@@ -1586,6 +1630,8 @@ lpfc_offline_prep(struct lpfc_hba * phba)
1586 list_for_each_entry_safe(ndlp, next_ndlp, 1630 list_for_each_entry_safe(ndlp, next_ndlp,
1587 &vports[i]->fc_nodes, 1631 &vports[i]->fc_nodes,
1588 nlp_listp) { 1632 nlp_listp) {
1633 if (!NLP_CHK_NODE_ACT(ndlp))
1634 continue;
1589 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1635 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1590 continue; 1636 continue;
1591 if (ndlp->nlp_type & NLP_FABRIC) { 1637 if (ndlp->nlp_type & NLP_FABRIC) {
@@ -1695,9 +1741,9 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
1695 1741
1696 vport = (struct lpfc_vport *) shost->hostdata; 1742 vport = (struct lpfc_vport *) shost->hostdata;
1697 vport->phba = phba; 1743 vport->phba = phba;
1698
1699 vport->load_flag |= FC_LOADING; 1744 vport->load_flag |= FC_LOADING;
1700 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1745 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1746 vport->fc_rscn_flush = 0;
1701 1747
1702 lpfc_get_vport_cfgparam(vport); 1748 lpfc_get_vport_cfgparam(vport);
1703 shost->unique_id = instance; 1749 shost->unique_id = instance;
@@ -1879,6 +1925,42 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost)
1879 spin_unlock_irq(shost->host_lock); 1925 spin_unlock_irq(shost->host_lock);
1880} 1926}
1881 1927
1928static int
1929lpfc_enable_msix(struct lpfc_hba *phba)
1930{
1931 int error;
1932
1933 phba->msix_entries[0].entry = 0;
1934 phba->msix_entries[0].vector = 0;
1935
1936 error = pci_enable_msix(phba->pcidev, phba->msix_entries,
1937 ARRAY_SIZE(phba->msix_entries));
1938 if (error) {
1939 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1940 "0420 Enable MSI-X failed (%d), continuing "
1941 "with MSI\n", error);
1942 pci_disable_msix(phba->pcidev);
1943 return error;
1944 }
1945
1946 error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0,
1947 LPFC_DRIVER_NAME, phba);
1948 if (error) {
1949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1950 "0421 MSI-X request_irq failed (%d), "
1951 "continuing with MSI\n", error);
1952 pci_disable_msix(phba->pcidev);
1953 }
1954 return error;
1955}
1956
1957static void
1958lpfc_disable_msix(struct lpfc_hba *phba)
1959{
1960 free_irq(phba->msix_entries[0].vector, phba);
1961 pci_disable_msix(phba->pcidev);
1962}
1963
1882static int __devinit 1964static int __devinit
1883lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1965lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1884{ 1966{
@@ -1905,6 +1987,9 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1905 1987
1906 spin_lock_init(&phba->hbalock); 1988 spin_lock_init(&phba->hbalock);
1907 1989
1990 /* Initialize ndlp management spinlock */
1991 spin_lock_init(&phba->ndlp_lock);
1992
1908 phba->pcidev = pdev; 1993 phba->pcidev = pdev;
1909 1994
1910 /* Assign an unused board number */ 1995 /* Assign an unused board number */
@@ -2002,6 +2087,8 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2002 2087
2003 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 2088 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
2004 2089
2090 INIT_LIST_HEAD(&phba->hbqbuf_in_list);
2091
2005 /* Initialize the SLI Layer to run with lpfc HBAs. */ 2092 /* Initialize the SLI Layer to run with lpfc HBAs. */
2006 lpfc_sli_setup(phba); 2093 lpfc_sli_setup(phba);
2007 lpfc_sli_queue_setup(phba); 2094 lpfc_sli_queue_setup(phba);
@@ -2077,24 +2164,36 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2077 lpfc_debugfs_initialize(vport); 2164 lpfc_debugfs_initialize(vport);
2078 2165
2079 pci_set_drvdata(pdev, shost); 2166 pci_set_drvdata(pdev, shost);
2167 phba->intr_type = NONE;
2080 2168
2081 if (phba->cfg_use_msi) { 2169 if (phba->cfg_use_msi == 2) {
2170 error = lpfc_enable_msix(phba);
2171 if (!error)
2172 phba->intr_type = MSIX;
2173 }
2174
2175 /* Fallback to MSI if MSI-X initialization failed */
2176 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
2082 retval = pci_enable_msi(phba->pcidev); 2177 retval = pci_enable_msi(phba->pcidev);
2083 if (!retval) 2178 if (!retval)
2084 phba->using_msi = 1; 2179 phba->intr_type = MSI;
2085 else 2180 else
2086 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2087 "0452 Enable MSI failed, continuing " 2182 "0452 Enable MSI failed, continuing "
2088 "with IRQ\n"); 2183 "with IRQ\n");
2089 } 2184 }
2090 2185
2091 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 2186 /* MSI-X is the only case the doesn't need to call request_irq */
2092 LPFC_DRIVER_NAME, phba); 2187 if (phba->intr_type != MSIX) {
2093 if (retval) { 2188 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
2094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2189 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2095 "0451 Enable interrupt handler failed\n"); 2190 if (retval) {
2096 error = retval; 2191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
2097 goto out_disable_msi; 2192 "interrupt handler failed\n");
2193 error = retval;
2194 goto out_disable_msi;
2195 } else if (phba->intr_type != MSI)
2196 phba->intr_type = INTx;
2098 } 2197 }
2099 2198
2100 phba->MBslimaddr = phba->slim_memmap_p; 2199 phba->MBslimaddr = phba->slim_memmap_p;
@@ -2139,9 +2238,14 @@ out_remove_device:
2139out_free_irq: 2238out_free_irq:
2140 lpfc_stop_phba_timers(phba); 2239 lpfc_stop_phba_timers(phba);
2141 phba->pport->work_port_events = 0; 2240 phba->pport->work_port_events = 0;
2142 free_irq(phba->pcidev->irq, phba); 2241
2242 if (phba->intr_type == MSIX)
2243 lpfc_disable_msix(phba);
2244 else
2245 free_irq(phba->pcidev->irq, phba);
2246
2143out_disable_msi: 2247out_disable_msi:
2144 if (phba->using_msi) 2248 if (phba->intr_type == MSI)
2145 pci_disable_msi(phba->pcidev); 2249 pci_disable_msi(phba->pcidev);
2146 destroy_port(vport); 2250 destroy_port(vport);
2147out_kthread_stop: 2251out_kthread_stop:
@@ -2214,10 +2318,13 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
2214 2318
2215 lpfc_debugfs_terminate(vport); 2319 lpfc_debugfs_terminate(vport);
2216 2320
2217 /* Release the irq reservation */ 2321 if (phba->intr_type == MSIX)
2218 free_irq(phba->pcidev->irq, phba); 2322 lpfc_disable_msix(phba);
2219 if (phba->using_msi) 2323 else {
2220 pci_disable_msi(phba->pcidev); 2324 free_irq(phba->pcidev->irq, phba);
2325 if (phba->intr_type == MSI)
2326 pci_disable_msi(phba->pcidev);
2327 }
2221 2328
2222 pci_set_drvdata(pdev, NULL); 2329 pci_set_drvdata(pdev, NULL);
2223 scsi_host_put(shost); 2330 scsi_host_put(shost);
@@ -2276,10 +2383,13 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
2276 pring = &psli->ring[psli->fcp_ring]; 2383 pring = &psli->ring[psli->fcp_ring];
2277 lpfc_sli_abort_iocb_ring(phba, pring); 2384 lpfc_sli_abort_iocb_ring(phba, pring);
2278 2385
2279 /* Release the irq reservation */ 2386 if (phba->intr_type == MSIX)
2280 free_irq(phba->pcidev->irq, phba); 2387 lpfc_disable_msix(phba);
2281 if (phba->using_msi) 2388 else {
2282 pci_disable_msi(phba->pcidev); 2389 free_irq(phba->pcidev->irq, phba);
2390 if (phba->intr_type == MSI)
2391 pci_disable_msi(phba->pcidev);
2392 }
2283 2393
2284 /* Request a slot reset. */ 2394 /* Request a slot reset. */
2285 return PCI_ERS_RESULT_NEED_RESET; 2395 return PCI_ERS_RESULT_NEED_RESET;