diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 205 |
1 files changed, 135 insertions, 70 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 06874e6009e..86d1bdcbf2d 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -60,7 +60,7 @@ 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. + * 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 @@ -221,7 +221,7 @@ out_free_mbox: } /** - * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd. + * 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. * @@ -242,8 +242,7 @@ lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) } /** - * lpfc_dump_wakeup_param_cmpl: Completion handler for dump memory mailbox - * command used for getting wake up parameters. + * 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. * @@ -287,7 +286,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) } /** - * lpfc_config_port_post: Perform lpfc initialization after config port. + * 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 @@ -303,6 +302,7 @@ 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; @@ -360,6 +360,11 @@ lpfc_config_port_post(struct lpfc_hba *phba) sizeof (struct lpfc_name)); memcpy(&vport->fc_portname, &vport->fc_sparam.portName, sizeof (struct lpfc_name)); + + /* Update the fc_host data structures with new wwn. */ + fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); + fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); + /* If no serial number in VPD data, use low 6 bytes of WWNN */ /* This should be consolidated into parse_vpd ? - mr */ if (phba->SerialNumber[0] == 0) { @@ -551,7 +556,7 @@ lpfc_config_port_post(struct lpfc_hba *phba) } /** - * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset. + * 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 @@ -583,7 +588,7 @@ lpfc_hba_down_prep(struct lpfc_hba *phba) } /** - * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset. + * lpfc_hba_down_post - 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 @@ -599,8 +604,6 @@ lpfc_hba_down_post(struct lpfc_hba *phba) struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; struct lpfc_dmabuf *mp, *next_mp; - struct lpfc_iocbq *iocb; - IOCB_t *cmd = NULL; LIST_HEAD(completions); int i; @@ -628,20 +631,9 @@ lpfc_hba_down_post(struct lpfc_hba *phba) pring->txcmplq_cnt = 0; spin_unlock_irq(&phba->hbalock); - while (!list_empty(&completions)) { - iocb = list_get_first(&completions, struct lpfc_iocbq, - list); - cmd = &iocb->iocb; - list_del_init(&iocb->list); - - if (!iocb->iocb_cmpl) - lpfc_sli_release_iocbq(phba, iocb); - else { - cmd->ulpStatus = IOSTAT_LOCAL_REJECT; - cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; - (iocb->iocb_cmpl) (phba, iocb, iocb); - } - } + /* 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); @@ -652,7 +644,7 @@ lpfc_hba_down_post(struct lpfc_hba *phba) } /** - * lpfc_hb_timeout: The HBA-timer timeout handler. + * 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 @@ -686,7 +678,7 @@ lpfc_hb_timeout(unsigned long ptr) } /** - * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function. + * 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. * @@ -721,7 +713,7 @@ lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) } /** - * lpfc_hb_timeout_handler: The HBA-timer timeout handler. + * 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 @@ -830,7 +822,7 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba) } /** - * lpfc_offline_eratt: Bring lpfc offline on hardware error attention. + * 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 @@ -857,7 +849,73 @@ lpfc_offline_eratt(struct lpfc_hba *phba) } /** - * lpfc_handle_eratt: The HBA hardware error handler. + * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to handle the deferred HBA hardware error + * conditions. This type of error is indicated by HBA by setting ER1 + * and another ER bit in the host status register. The driver will + * wait until the ER1 bit clears before handling the error condition. + **/ +static void +lpfc_handle_deferred_eratt(struct lpfc_hba *phba) +{ + uint32_t old_host_status = phba->work_hs; + struct lpfc_sli_ring *pring; + struct lpfc_sli *psli = &phba->sli; + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0479 Deferred Adapter Hardware Error " + "Data: x%x x%x x%x\n", + phba->work_hs, + phba->work_status[0], phba->work_status[1]); + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI2_ACTIVE; + spin_unlock_irq(&phba->hbalock); + + + /* + * Firmware stops when it triggred erratt. That could cause the I/Os + * dropped by the firmware. Error iocb (I/O) on txcmplq and let the + * SCSI layer retry it after re-establishing link. + */ + pring = &psli->ring[psli->fcp_ring]; + lpfc_sli_abort_iocb_ring(phba, pring); + + /* + * There was a firmware error. Take the hba offline and then + * attempt to restart it. + */ + lpfc_offline_prep(phba); + lpfc_offline(phba); + + /* Wait for the ER1 bit to clear.*/ + while (phba->work_hs & HS_FFER1) { + msleep(100); + phba->work_hs = readl(phba->HSregaddr); + /* If driver is unloading let the worker thread continue */ + if (phba->pport->load_flag & FC_UNLOADING) { + phba->work_hs = 0; + break; + } + } + + /* + * This is to ptrotect against a race condition in which + * first write to the host attention register clear the + * host status register. + */ + if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) + phba->work_hs = old_host_status & ~HS_FFER1; + + phba->hba_flag &= ~DEFER_ERATT; + phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); + phba->work_status[1] = readl(phba->MBslimaddr + 0xac); +} + +/** + * lpfc_handle_eratt - The HBA hardware error handler * @phba: pointer to lpfc hba data structure. * * This routine is invoked to handle the following HBA hardware error @@ -895,6 +953,9 @@ lpfc_handle_eratt(struct lpfc_hba *phba) (char *) &board_event, LPFC_NL_VENDOR_ID); + if (phba->hba_flag & DEFER_ERATT) + lpfc_handle_deferred_eratt(phba); + if (phba->work_hs & HS_FFER6) { /* Re-establishing Link */ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, @@ -976,7 +1037,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba) } /** - * lpfc_handle_latt: The HBA link event handler. + * 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 @@ -1063,7 +1124,7 @@ lpfc_handle_latt_err_exit: } /** - * lpfc_parse_vpd: Parse VPD (Vital Product Data). + * 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. @@ -1213,7 +1274,7 @@ lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) } /** - * lpfc_get_hba_model_desc: Retrieve HBA device model name and description. + * 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. @@ -1322,7 +1383,8 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; break; case PCI_DEVICE_ID_ZEPHYR_DCSP: - m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; + m = (typeof(m)){"LP2105", max_speed, "PCIe"}; + GE = 1; break; case PCI_DEVICE_ID_ZMID: m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; @@ -1392,7 +1454,7 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) } /** - * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring. + * 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. @@ -1493,7 +1555,7 @@ lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) } /** - * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring. + * 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 @@ -1518,7 +1580,7 @@ lpfc_post_rcv_buf(struct lpfc_hba *phba) #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) /** - * lpfc_sha_init: Set up initial array of hash table entries. + * 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 @@ -1535,7 +1597,7 @@ lpfc_sha_init(uint32_t * HashResultPointer) } /** - * lpfc_sha_iterate: Iterate initial hash table with the working hash table. + * 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. * @@ -1592,7 +1654,7 @@ lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) } /** - * lpfc_challenge_key: Create challenge key based on WWPN of the HBA. + * 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. * @@ -1608,7 +1670,7 @@ lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) } /** - * lpfc_hba_init: Perform special handling for LC HBA initialization. + * 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. * @@ -1637,7 +1699,7 @@ lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) } /** - * lpfc_cleanup: Performs vport cleanups before deleting a vport. + * 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. @@ -1724,7 +1786,7 @@ lpfc_cleanup(struct lpfc_vport *vport) } /** - * lpfc_stop_vport_timers: Stop all the timers associated with a vport. + * 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 @@ -1741,7 +1803,7 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport) } /** - * lpfc_stop_phba_timers: Stop all the timers associated with an HBA. + * lpfc_stop_phba_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 @@ -1761,7 +1823,7 @@ lpfc_stop_phba_timers(struct lpfc_hba *phba) } /** - * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked. + * 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 @@ -1781,7 +1843,7 @@ lpfc_block_mgmt_io(struct lpfc_hba * phba) } /** - * lpfc_online: Initialize and bring a HBA online. + * 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 @@ -1839,7 +1901,7 @@ lpfc_online(struct lpfc_hba *phba) } /** - * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked. + * 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 @@ -1860,7 +1922,7 @@ lpfc_unblock_mgmt_io(struct lpfc_hba * phba) } /** - * lpfc_offline_prep: Prepare a HBA to be brought offline. + * 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 @@ -1917,7 +1979,7 @@ lpfc_offline_prep(struct lpfc_hba * phba) } /** - * lpfc_offline: Bring a HBA offline. + * 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 @@ -1962,7 +2024,7 @@ lpfc_offline(struct lpfc_hba *phba) } /** - * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists. + * 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 @@ -2001,7 +2063,7 @@ lpfc_scsi_free(struct lpfc_hba *phba) } /** - * lpfc_create_port: Create an FC port. + * 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. @@ -2091,7 +2153,7 @@ out: } /** - * destroy_port: Destroy an FC port. + * 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 @@ -2116,7 +2178,7 @@ destroy_port(struct lpfc_vport *vport) } /** - * lpfc_get_instance: Get a unique integer ID. + * 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. @@ -2139,7 +2201,7 @@ lpfc_get_instance(void) } /** - * lpfc_scan_finished: method for SCSI layer to detect whether scan is done. + * 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. * @@ -2197,7 +2259,7 @@ finished: } /** - * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port. + * 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 @@ -2252,7 +2314,7 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost) } /** - * lpfc_enable_msix: Enable MSI-X interrupt mode. + * lpfc_enable_msix - Enable MSI-X interrupt mode * @phba: pointer to lpfc hba data structure. * * This routine is invoked to enable the MSI-X interrupt vectors. The kernel @@ -2366,7 +2428,7 @@ msi_fail_out: } /** - * lpfc_disable_msix: Disable MSI-X interrupt mode. + * lpfc_disable_msix - Disable MSI-X interrupt mode * @phba: pointer to lpfc hba data structure. * * This routine is invoked to release the MSI-X vectors and then disable the @@ -2385,7 +2447,7 @@ lpfc_disable_msix(struct lpfc_hba *phba) } /** - * lpfc_enable_msi: Enable MSI interrupt mode. + * lpfc_enable_msi - Enable MSI interrupt mode * @phba: pointer to lpfc hba data structure. * * This routine is invoked to enable the MSI interrupt mode. The kernel @@ -2423,7 +2485,7 @@ lpfc_enable_msi(struct lpfc_hba *phba) } /** - * lpfc_disable_msi: Disable MSI interrupt mode. + * lpfc_disable_msi - Disable MSI interrupt mode * @phba: pointer to lpfc hba data structure. * * This routine is invoked to disable the MSI interrupt mode. The driver @@ -2441,7 +2503,7 @@ lpfc_disable_msi(struct lpfc_hba *phba) } /** - * lpfc_log_intr_mode: Log the active interrupt mode + * lpfc_log_intr_mode - Log the active interrupt mode * @phba: pointer to lpfc hba data structure. * @intr_mode: active interrupt mode adopted. * @@ -2490,7 +2552,7 @@ lpfc_stop_port(struct lpfc_hba *phba) } /** - * lpfc_enable_intr: Enable device interrupt. + * lpfc_enable_intr - Enable device interrupt * @phba: pointer to lpfc hba data structure. * * This routine is invoked to enable device interrupt and associate driver's @@ -2547,7 +2609,7 @@ lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) } /** - * lpfc_disable_intr: Disable device interrupt. + * lpfc_disable_intr - Disable device interrupt * @phba: pointer to lpfc hba data structure. * * This routine is invoked to disable device interrupt and disassociate the @@ -2574,7 +2636,7 @@ lpfc_disable_intr(struct lpfc_hba *phba) } /** - * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem. + * lpfc_pci_probe_one - lpfc PCI probe func to register device to PCI subsystem * @pdev: pointer to PCI device * @pid: pointer to PCI device identifier * @@ -3010,7 +3072,7 @@ out: } /** - * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem. + * lpfc_pci_remove_one - lpfc PCI func to unregister device from PCI subsystem * @pdev: pointer to PCI device * * This routine is to be registered to the kernel's PCI subsystem. When an @@ -3033,8 +3095,6 @@ lpfc_pci_remove_one(struct pci_dev *pdev) lpfc_free_sysfs_attr(vport); - kthread_stop(phba->worker_thread); - /* Release all the vports against this physical port */ vports = lpfc_create_vport_work_array(phba); if (vports != NULL) @@ -3052,7 +3112,12 @@ lpfc_pci_remove_one(struct pci_dev *pdev) * clears the rings, discards all mailbox commands, and resets * the HBA. */ + + /* HBA interrupt will be diabled after this call */ lpfc_sli_hba_down(phba); + /* Stop kthread signal shall trigger work_done one more time */ + kthread_stop(phba->worker_thread); + /* Final cleanup of txcmplq and reset the HBA */ lpfc_sli_brdrestart(phba); lpfc_stop_phba_timers(phba); @@ -3095,7 +3160,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev) } /** - * lpfc_pci_suspend_one: lpfc PCI func to suspend device for power management. + * lpfc_pci_suspend_one - lpfc PCI func to suspend device for power management * @pdev: pointer to PCI device * @msg: power management message * @@ -3139,7 +3204,7 @@ lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) } /** - * lpfc_pci_resume_one: lpfc PCI func to resume device for power management. + * lpfc_pci_resume_one - lpfc PCI func to resume device for power management * @pdev: pointer to PCI device * * This routine is to be registered to the kernel's PCI subsystem to support @@ -3204,7 +3269,7 @@ lpfc_pci_resume_one(struct pci_dev *pdev) } /** - * lpfc_io_error_detected: Driver method for handling PCI I/O error detected. + * lpfc_io_error_detected - Driver method for handling PCI I/O error detected * @pdev: pointer to PCI device. * @state: the current PCI connection state. * @@ -3254,7 +3319,7 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, } /** - * lpfc_io_slot_reset: Restart a PCI device from scratch. + * lpfc_io_slot_reset - Restart a PCI device from scratch * @pdev: pointer to PCI device. * * This routine is registered to the PCI subsystem for error handling. This is @@ -3313,7 +3378,7 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) } /** - * lpfc_io_resume: Resume PCI I/O operation. + * lpfc_io_resume - Resume PCI I/O operation * @pdev: pointer to PCI device * * This routine is registered to the PCI subsystem for error handling. It is @@ -3426,7 +3491,7 @@ static struct pci_driver lpfc_driver = { }; /** - * lpfc_init: lpfc module initialization routine. + * 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 @@ -3472,7 +3537,7 @@ lpfc_init(void) } /** - * lpfc_exit: lpfc module removal routine. + * 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 |