// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2008 Cisco Systems, Inc. All rights reserved. * Copyright 2007 Nuova Systems, Inc. All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "vnic_dev.h" #include "vnic_intr.h" #include "vnic_stats.h" #include "fnic_io.h" #include "fnic.h" #include "fnic_fdls.h" #include "fdls_fc.h" #define PCI_DEVICE_ID_CISCO_FNIC 0x0045 /* Timer to poll notification area for events. Used for MSI interrupts */ #define FNIC_NOTIFY_TIMER_PERIOD (2 * HZ) static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES]; static struct kmem_cache *fnic_io_req_cache; static struct kmem_cache *fdls_frame_cache; static struct kmem_cache *fdls_frame_elem_cache; static LIST_HEAD(fnic_list); static DEFINE_SPINLOCK(fnic_list_lock); static DEFINE_IDA(fnic_ida); struct work_struct reset_fnic_work; LIST_HEAD(reset_fnic_list); DEFINE_SPINLOCK(reset_fnic_list_lock); /* Supported devices by fnic module */ static const struct pci_device_id fnic_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) }, { 0, } }; MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_AUTHOR("Abhijeet Joglekar , " "Joseph R. Eykholt "); MODULE_LICENSE("GPL v2"); MODULE_VERSION(DRV_VERSION); MODULE_DEVICE_TABLE(pci, fnic_id_table); unsigned int fnic_log_level; module_param(fnic_log_level, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels"); unsigned int fnic_fdmi_support = 1; module_param(fnic_fdmi_support, int, 0644); MODULE_PARM_DESC(fnic_fdmi_support, "FDMI support"); static unsigned int fnic_tgt_id_binding = 1; module_param(fnic_tgt_id_binding, uint, 0644); MODULE_PARM_DESC(fnic_tgt_id_binding, "Target ID binding (0 for none. 1 for binding by WWPN (default))"); unsigned int io_completions = FNIC_DFLT_IO_COMPLETIONS; module_param(io_completions, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(io_completions, "Max CQ entries to process at a time"); unsigned int fnic_trace_max_pages = 16; module_param(fnic_trace_max_pages, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_trace_max_pages, "Total allocated memory pages " "for fnic trace buffer"); unsigned int fnic_fc_trace_max_pages = 64; module_param(fnic_fc_trace_max_pages, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_fc_trace_max_pages, "Total allocated memory pages for fc trace buffer"); static unsigned int fnic_max_qdepth = FNIC_DFLT_QUEUE_DEPTH; module_param(fnic_max_qdepth, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(fnic_max_qdepth, "Queue depth to report for each LUN"); unsigned int pc_rscn_handling_feature_flag = PC_RSCN_HANDLING_FEATURE_ON; module_param(pc_rscn_handling_feature_flag, uint, 0644); MODULE_PARM_DESC(pc_rscn_handling_feature_flag, "PCRSCN handling (0 for none. 1 to handle PCRSCN (default))"); struct workqueue_struct *reset_fnic_work_queue; struct workqueue_struct *fnic_fip_queue; static int fnic_sdev_init(struct scsi_device *sdev) { struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; scsi_change_queue_depth(sdev, fnic_max_qdepth); return 0; } static const struct scsi_host_template fnic_host_template = { .module = THIS_MODULE, .name = DRV_NAME, .queuecommand = fnic_queuecommand, .eh_timed_out = fc_eh_timed_out, .eh_abort_handler = fnic_abort_cmd, .eh_device_reset_handler = fnic_device_reset, .eh_host_reset_handler = fnic_eh_host_reset_handler, .sdev_init = fnic_sdev_init, .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .cmd_per_lun = 3, .can_queue = FNIC_DFLT_IO_REQ, .sg_tablesize = FNIC_MAX_SG_DESC_CNT, .max_sectors = 0xffff, .shost_groups = fnic_host_groups, .track_queue_depth = 1, .cmd_size = sizeof(struct fnic_cmd_priv), .map_queues = fnic_mq_map_queues_cpus, }; static void fnic_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) { if (timeout) rport->dev_loss_tmo = timeout; else rport->dev_loss_tmo = 1; } static void fnic_get_host_speed(struct Scsi_Host *shost); static struct scsi_transport_template *fnic_fc_transport; static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *); static void fnic_reset_host_stats(struct Scsi_Host *); static struct fc_function_template fnic_fc_functions = { .show_host_node_name = 1, .show_host_port_name = 1, .show_host_supported_classes = 1, .show_host_supported_fc4s = 1, .show_host_active_fc4s = 1, .show_host_maxframe_size = 1, .show_host_port_id = 1, .show_host_supported_speeds = 1, .get_host_speed = fnic_get_host_speed, .show_host_speed = 1, .show_host_port_type = 1, .get_host_port_state = fnic_get_host_port_state, .show_host_port_state = 1, .show_host_symbolic_name = 1, .show_rport_maxframe_size = 1, .show_rport_supported_classes = 1, .show_host_fabric_name = 1, .show_starget_node_name = 1, .show_starget_port_name = 1, .show_starget_port_id = 1, .show_rport_dev_loss_tmo = 1, .set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo, .issue_fc_host_lip = fnic_issue_fc_host_lip, .get_fc_host_stats = fnic_get_stats, .reset_fc_host_stats = fnic_reset_host_stats, .dd_fcrport_size = sizeof(struct rport_dd_data_s), .terminate_rport_io = fnic_terminate_rport_io, .bsg_request = NULL, }; static void fnic_get_host_speed(struct Scsi_Host *shost) { struct fnic *fnic = *((struct fnic **) shost_priv(shost)); u32 port_speed = vnic_dev_port_speed(fnic->vdev); struct fnic_stats *fnic_stats = &fnic->fnic_stats; FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num, "port_speed: %d Mbps", port_speed); atomic64_set(&fnic_stats->misc_stats.port_speed_in_mbps, port_speed); /* Add in other values as they get defined in fw */ switch (port_speed) { case DCEM_PORTSPEED_1G: fc_host_speed(shost) = FC_PORTSPEED_1GBIT; break; case DCEM_PORTSPEED_2G: fc_host_speed(shost) = FC_PORTSPEED_2GBIT; break; case DCEM_PORTSPEED_4G: fc_host_speed(shost) = FC_PORTSPEED_4GBIT; break; case DCEM_PORTSPEED_8G: fc_host_speed(shost) = FC_PORTSPEED_8GBIT; break; case DCEM_PORTSPEED_10G: fc_host_speed(shost) = FC_PORTSPEED_10GBIT; break; case DCEM_PORTSPEED_16G: fc_host_speed(shost) = FC_PORTSPEED_16GBIT; break; case DCEM_PORTSPEED_20G: fc_host_speed(shost) = FC_PORTSPEED_20GBIT; break; case DCEM_PORTSPEED_25G: fc_host_speed(shost) = FC_PORTSPEED_25GBIT; break; case DCEM_PORTSPEED_32G: fc_host_speed(shost) = FC_PORTSPEED_32GBIT; break; case DCEM_PORTSPEED_40G: case DCEM_PORTSPEED_4x10G: fc_host_speed(shost) = FC_PORTSPEED_40GBIT; break; case DCEM_PORTSPEED_50G: fc_host_speed(shost) = FC_PORTSPEED_50GBIT; break; case DCEM_PORTSPEED_64G: fc_host_speed(shost) = FC_PORTSPEED_64GBIT; break; case DCEM_PORTSPEED_100G: fc_host_speed(shost) = FC_PORTSPEED_100GBIT; break; case DCEM_PORTSPEED_128G: fc_host_speed(shost) = FC_PORTSPEED_128GBIT; break; default: FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num, "Unknown FC speed: %d Mbps", port_speed); fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break; } } /* Placeholder function */ static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host) { int ret; struct fnic *fnic = *((struct fnic **) shost_priv(host)); struct fc_host_statistics *stats = &fnic->fnic_stats.host_stats; struct vnic_stats *vs; unsigned long flags; if (time_before (jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT)) return stats; fnic->stats_time = jiffies; spin_lock_irqsave(&fnic->fnic_lock, flags); ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); spin_unlock_irqrestore(&fnic->fnic_lock, flags); if (ret) { FNIC_MAIN_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, "fnic: Get vnic stats failed: 0x%x", ret); return stats; } vs = fnic->stats; stats->tx_frames = vs->tx.tx_unicast_frames_ok; stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4; stats->rx_frames = vs->rx.rx_unicast_frames_ok; stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4; stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors; stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop; stats->invalid_crc_count = vs->rx.rx_crc_errors; stats->seconds_since_last_reset = (jiffies - fnic->stats_reset_time) / HZ; stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000); stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000); return stats; } /* * fnic_dump_fchost_stats * note : dumps fc_statistics into system logs */ void fnic_dump_fchost_stats(struct Scsi_Host *host, struct fc_host_statistics *stats) { FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: seconds since last reset = %llu\n", stats->seconds_since_last_reset); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: tx frames = %llu\n", stats->tx_frames); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: tx words = %llu\n", stats->tx_words); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: rx frames = %llu\n", stats->rx_frames); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: rx words = %llu\n", stats->rx_words); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: lip count = %llu\n", stats->lip_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: nos count = %llu\n", stats->nos_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: error frames = %llu\n", stats->error_frames); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: dumped frames = %llu\n", stats->dumped_frames); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: link failure count = %llu\n", stats->link_failure_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: loss of sync count = %llu\n", stats->loss_of_sync_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: loss of signal count = %llu\n", stats->loss_of_signal_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: prim seq protocol err count = %llu\n", stats->prim_seq_protocol_err_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: invalid tx word count= %llu\n", stats->invalid_tx_word_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: invalid crc count = %llu\n", stats->invalid_crc_count); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: fcp input requests = %llu\n", stats->fcp_input_requests); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: fcp output requests = %llu\n", stats->fcp_output_requests); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: fcp control requests = %llu\n", stats->fcp_control_requests); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: fcp input megabytes = %llu\n", stats->fcp_input_megabytes); FNIC_MAIN_NOTE(KERN_NOTICE, host, "fnic: fcp output megabytes = %llu\n", stats->fcp_output_megabytes); return; } /* * fnic_reset_host_stats : clears host stats * note : called when reset_statistics set under sysfs dir */ static void fnic_reset_host_stats(struct Scsi_Host *host) { int ret; struct fnic *fnic = *((struct fnic **) shost_priv(host)); struct fc_host_statistics *stats; unsigned long flags; /* dump current stats, before clearing them */ stats = fnic_get_stats(host); fnic_dump_fchost_stats(host, stats); spin_lock_irqsave(&fnic->fnic_lock, flags); ret = vnic_dev_stats_clear(fnic->vdev); spin_unlock_irqrestore(&fnic->fnic_lock, flags); if (ret) { FNIC_MAIN_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, "fnic: Reset vnic stats failed" " 0x%x", ret); return; } fnic->stats_reset_time = jiffies; memset(stats, 0, sizeof(*stats)); return; } void fnic_log_q_error(struct fnic *fnic) { unsigned int i; u32 error_status; for (i = 0; i < fnic->raw_wq_count; i++) { error_status = ioread32(&fnic->wq[i].ctrl->error_status); if (error_status) dev_err(&fnic->pdev->dev, "WQ[%d] error_status %d\n", i, error_status); } for (i = 0; i < fnic->rq_count; i++) { error_status = ioread32(&fnic->rq[i].ctrl->error_status); if (error_status) dev_err(&fnic->pdev->dev, "RQ[%d] error_status %d\n", i, error_status); } for (i = 0; i < fnic->wq_copy_count; i++) { error_status = ioread32(&fnic->hw_copy_wq[i].ctrl->error_status); if (error_status) dev_err(&fnic->pdev->dev, "CWQ[%d] error_status %d\n", i, error_status); } } void fnic_handle_link_event(struct fnic *fnic) { unsigned long flags; spin_lock_irqsave(&fnic->fnic_lock, flags); if (fnic->stop_rx_link_events) { spin_unlock_irqrestore(&fnic->fnic_lock, flags); return; } spin_unlock_irqrestore(&fnic->fnic_lock, flags); queue_work(fnic_event_queue, &fnic->link_work); } static int fnic_notify_set(struct fnic *fnic) { int err; switch (vnic_dev_get_intr_mode(fnic->vdev)) { case VNIC_DEV_INTR_MODE_INTX: err = vnic_dev_notify_set(fnic->vdev, FNIC_INTX_NOTIFY); break; case VNIC_DEV_INTR_MODE_MSI: err = vnic_dev_notify_set(fnic->vdev, -1); break; case VNIC_DEV_INTR_MODE_MSIX: err = vnic_dev_notify_set(fnic->vdev, fnic->wq_copy_count + fnic->copy_wq_base); break; default: dev_err(&fnic->pdev->dev, "Interrupt mode should be set up" " before devcmd notify set %d\n", vnic_dev_get_intr_mode(fnic->vdev)); err = -1; break; } return err; } static void fnic_notify_timer(struct timer_list *t) { struct fnic *fnic = from_timer(fnic, t, notify_timer); fnic_handle_link_event(fnic); mod_timer(&fnic->notify_timer, round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD)); } static void fnic_notify_timer_start(struct fnic *fnic) { switch (vnic_dev_get_intr_mode(fnic->vdev)) { case VNIC_DEV_INTR_MODE_MSI: /* * Schedule first timeout immediately. The driver is * initiatialized and ready to look for link up notification */ mod_timer(&fnic->notify_timer, jiffies); break; default: /* Using intr for notification for INTx/MSI-X */ break; } } static int fnic_dev_wait(struct vnic_dev *vdev, int (*start)(struct vnic_dev *, int), int (*finished)(struct vnic_dev *, int *), int arg) { unsigned long time; int done; int err; int count; count = 0; err = start(vdev, arg); if (err) return err; /* Wait for func to complete. * Sometime schedule_timeout_uninterruptible take long time * to wake up so we do not retry as we are only waiting for * 2 seconds in while loop. By adding count, we make sure * we try atleast three times before returning -ETIMEDOUT */ time = jiffies + (HZ * 2); do { err = finished(vdev, &done); count++; if (err) return err; if (done) return 0; schedule_timeout_uninterruptible(HZ / 10); } while (time_after(time, jiffies) || (count < 3)); return -ETIMEDOUT; } static int fnic_cleanup(struct fnic *fnic) { unsigned int i; int err; int raw_wq_rq_counts; vnic_dev_disable(fnic->vdev); for (i = 0; i < fnic->intr_count; i++) vnic_intr_mask(&fnic->intr[i]); for (i = 0; i < fnic->rq_count; i++) { err = vnic_rq_disable(&fnic->rq[i]); if (err) return err; } for (i = 0; i < fnic->raw_wq_count; i++) { err = vnic_wq_disable(&fnic->wq[i]); if (err) return err; } for (i = 0; i < fnic->wq_copy_count; i++) { err = vnic_wq_copy_disable(&fnic->hw_copy_wq[i]); if (err) return err; raw_wq_rq_counts = fnic->raw_wq_count + fnic->rq_count; fnic_wq_copy_cmpl_handler(fnic, -1, i + raw_wq_rq_counts); } /* Clean up completed IOs and FCS frames */ fnic_wq_cmpl_handler(fnic, -1); fnic_rq_cmpl_handler(fnic, -1); /* Clean up the IOs and FCS frames that have not completed */ for (i = 0; i < fnic->raw_wq_count; i++) vnic_wq_clean(&fnic->wq[i], fnic_free_wq_buf); for (i = 0; i < fnic->rq_count; i++) vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); for (i = 0; i < fnic->wq_copy_count; i++) vnic_wq_copy_clean(&fnic->hw_copy_wq[i], fnic_wq_copy_cleanup_handler); for (i = 0; i < fnic->cq_count; i++) vnic_cq_clean(&fnic->cq[i]); for (i = 0; i < fnic->intr_count; i++) vnic_intr_clean(&fnic->intr[i]); mempool_destroy(fnic->io_req_pool); mempool_destroy(fnic->frame_pool); mempool_destroy(fnic->frame_elem_pool); for (i = 0; i < FNIC_SGL_NUM_CACHES; i++) mempool_destroy(fnic->io_sgl_pool[i]); return 0; } static void fnic_iounmap(struct fnic *fnic) { if (fnic->bar0.vaddr) iounmap(fnic->bar0.vaddr); } static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id) { vnic_dev_set_default_vlan(fnic->vdev, vlan_id); } static void fnic_scsi_init(struct fnic *fnic) { struct Scsi_Host *host = fnic->host; snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, host->host_no); host->transportt = fnic_fc_transport; } static void fnic_free_ioreq_tables_mq(struct fnic *fnic) { int hwq; for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) kfree(fnic->sw_copy_wq[hwq].io_req_table); } static int fnic_scsi_drv_init(struct fnic *fnic) { struct Scsi_Host *host = fnic->host; int err; struct pci_dev *pdev = fnic->pdev; struct fnic_iport_s *iport = &fnic->iport; int hwq; /* Configure maximum outstanding IO reqs*/ if (fnic->config.io_throttle_count != FNIC_UCSM_DFLT_THROTTLE_CNT_BLD) host->can_queue = min_t(u32, FNIC_MAX_IO_REQ, max_t(u32, FNIC_MIN_IO_REQ, fnic->config.io_throttle_count)); fnic->fnic_max_tag_id = host->can_queue; host->max_lun = fnic->config.luns_per_tgt; host->max_id = FNIC_MAX_FCP_TARGET; host->max_cmd_len = FNIC_FCOE_MAX_CMD_LEN; host->nr_hw_queues = fnic->wq_copy_count; dev_info(&fnic->pdev->dev, "fnic: can_queue: %d max_lun: %llu", host->can_queue, host->max_lun); dev_info(&fnic->pdev->dev, "fnic: max_id: %d max_cmd_len: %d nr_hw_queues: %d", host->max_id, host->max_cmd_len, host->nr_hw_queues); for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) { fnic->sw_copy_wq[hwq].ioreq_table_size = fnic->fnic_max_tag_id; fnic->sw_copy_wq[hwq].io_req_table = kzalloc((fnic->sw_copy_wq[hwq].ioreq_table_size + 1) * sizeof(struct fnic_io_req *), GFP_KERNEL); if (!fnic->sw_copy_wq[hwq].io_req_table) { fnic_free_ioreq_tables_mq(fnic); return -ENOMEM; } } dev_info(&fnic->pdev->dev, "fnic copy wqs: %d, Q0 ioreq table size: %d\n", fnic->wq_copy_count, fnic->sw_copy_wq[0].ioreq_table_size); fnic_scsi_init(fnic); err = scsi_add_host(fnic->host, &pdev->dev); if (err) { dev_err(&fnic->pdev->dev, "fnic: scsi add host failed: aborting\n"); return err; } fc_host_maxframe_size(fnic->host) = iport->max_payload_size; fc_host_dev_loss_tmo(fnic->host) = fnic->config.port_down_timeout / 1000; sprintf(fc_host_symbolic_name(fnic->host), DRV_NAME " v" DRV_VERSION " over %s", fnic->name); fc_host_port_type(fnic->host) = FC_PORTTYPE_NPORT; fc_host_node_name(fnic->host) = iport->wwnn; fc_host_port_name(fnic->host) = iport->wwpn; fc_host_supported_classes(fnic->host) = FC_COS_CLASS3; memset(fc_host_supported_fc4s(fnic->host), 0, sizeof(fc_host_supported_fc4s(fnic->host))); fc_host_supported_fc4s(fnic->host)[2] = 1; fc_host_supported_fc4s(fnic->host)[7] = 1; fc_host_supported_speeds(fnic->host) = 0; fc_host_supported_speeds(fnic->host) |= FC_PORTSPEED_8GBIT; dev_info(&fnic->pdev->dev, "shost_data: 0x%p\n", fnic->host->shost_data); if (fnic->host->shost_data != NULL) { if (fnic_tgt_id_binding == 0) { dev_info(&fnic->pdev->dev, "Setting target binding to NONE\n"); fc_host_tgtid_bind_type(fnic->host) = FC_TGTID_BIND_NONE; } else { dev_info(&fnic->pdev->dev, "Setting target binding to WWPN\n"); fc_host_tgtid_bind_type(fnic->host) = FC_TGTID_BIND_BY_WWPN; } } fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); if (!fnic->io_req_pool) { scsi_remove_host(fnic->host); return -ENOMEM; } return 0; } void fnic_mq_map_queues_cpus(struct Scsi_Host *host) { struct fnic *fnic = *((struct fnic **) shost_priv(host)); struct pci_dev *l_pdev = fnic->pdev; int intr_mode = fnic->config.intr_mode; struct blk_mq_queue_map *qmap = &host->tag_set.map[HCTX_TYPE_DEFAULT]; if (intr_mode == VNIC_DEV_INTR_MODE_MSI || intr_mode == VNIC_DEV_INTR_MODE_INTX) { FNIC_MAIN_DBG(KERN_ERR, fnic->host, fnic->fnic_num, "intr_mode is not msix\n"); return; } FNIC_MAIN_DBG(KERN_INFO, fnic->host, fnic->fnic_num, "qmap->nr_queues: %d\n", qmap->nr_queues); if (l_pdev == NULL) { FNIC_MAIN_DBG(KERN_ERR, fnic->host, fnic->fnic_num, "l_pdev is null\n"); return; } blk_mq_map_hw_queues(qmap, &l_pdev->dev, FNIC_PCI_OFFSET); } static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct Scsi_Host *host = NULL; struct fnic *fnic; mempool_t *pool; struct fnic_iport_s *iport; int err = 0; int fnic_id = 0; int i; unsigned long flags; char *desc, *subsys_desc; int len; /* * Allocate fnic */ fnic = kzalloc(sizeof(struct fnic), GFP_KERNEL); if (!fnic) { err = -ENOMEM; goto err_out_fnic_alloc; } iport = &fnic->iport; fnic_id = ida_alloc(&fnic_ida, GFP_KERNEL); if (fnic_id < 0) { dev_err(&pdev->dev, "Unable to alloc fnic ID\n"); err = fnic_id; goto err_out_ida_alloc; } fnic->pdev = pdev; fnic->fnic_num = fnic_id; /* Find model name from PCIe subsys ID */ if (fnic_get_desc_by_devid(pdev, &desc, &subsys_desc) == 0) { dev_info(&fnic->pdev->dev, "Model: %s\n", subsys_desc); /* Update FDMI model */ fnic->subsys_desc_len = strlen(subsys_desc); len = ARRAY_SIZE(fnic->subsys_desc); if (fnic->subsys_desc_len > len) fnic->subsys_desc_len = len; memcpy(fnic->subsys_desc, subsys_desc, fnic->subsys_desc_len); dev_info(&fnic->pdev->dev, "FDMI Model: %s\n", fnic->subsys_desc); } else { fnic->subsys_desc_len = 0; dev_info(&fnic->pdev->dev, "Model: %s subsys_id: 0x%04x\n", "Unknown", pdev->subsystem_device); } err = pci_enable_device(pdev); if (err) { dev_err(&fnic->pdev->dev, "Cannot enable PCI device, aborting.\n"); goto err_out_pci_enable_device; } err = pci_request_regions(pdev, DRV_NAME); if (err) { dev_err(&fnic->pdev->dev, "Cannot enable PCI resources, aborting\n"); goto err_out_pci_request_regions; } pci_set_master(pdev); /* Query PCI controller on system for DMA addressing * limitation for the device. Try 47-bit first, and * fail to 32-bit. Cisco VIC supports 47 bits only. */ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(47)); if (err) { err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) { dev_err(&fnic->pdev->dev, "No usable DMA configuration " "aborting\n"); goto err_out_set_dma_mask; } } /* Map vNIC resources from BAR0 */ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { dev_err(&fnic->pdev->dev, "BAR0 not memory-map'able, aborting.\n"); err = -ENODEV; goto err_out_map_bar; } fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); fnic->bar0.bus_addr = pci_resource_start(pdev, 0); fnic->bar0.len = pci_resource_len(pdev, 0); if (!fnic->bar0.vaddr) { dev_err(&fnic->pdev->dev, "Cannot memory-map BAR0 res hdr, " "aborting.\n"); err = -ENODEV; goto err_out_fnic_map_bar; } fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); if (!fnic->vdev) { dev_err(&fnic->pdev->dev, "vNIC registration failed, " "aborting.\n"); err = -ENODEV; goto err_out_dev_register; } err = vnic_dev_cmd_init(fnic->vdev); if (err) { dev_err(&fnic->pdev->dev, "vnic_dev_cmd_init() returns %d, aborting\n", err); goto err_out_dev_cmd_init; } err = fnic_dev_wait(fnic->vdev, vnic_dev_open, vnic_dev_open_done, CMD_OPENF_RQ_ENABLE_THEN_POST); if (err) { dev_err(&fnic->pdev->dev, "vNIC dev open failed, aborting.\n"); goto err_out_dev_open; } err = vnic_dev_init(fnic->vdev, 0); if (err) { dev_err(&fnic->pdev->dev, "vNIC dev init failed, aborting.\n"); goto err_out_dev_init; } err = vnic_dev_mac_addr(fnic->vdev, iport->hwmac); if (err) { dev_err(&fnic->pdev->dev, "vNIC get MAC addr failed\n"); goto err_out_dev_mac_addr; } /* set data_src for point-to-point mode and to keep it non-zero */ memcpy(fnic->data_src_addr, iport->hwmac, ETH_ALEN); /* Get vNIC configuration */ err = fnic_get_vnic_config(fnic); if (err) { dev_err(&fnic->pdev->dev, "Get vNIC configuration failed, " "aborting.\n"); goto err_out_fnic_get_config; } switch (fnic->config.flags & 0xff0) { case VFCF_FC_INITIATOR: { host = scsi_host_alloc(&fnic_host_template, sizeof(struct fnic *)); if (!host) { dev_err(&fnic->pdev->dev, "Unable to allocate scsi host\n"); err = -ENOMEM; goto err_out_scsi_host_alloc; } *((struct fnic **) shost_priv(host)) = fnic; fnic->host = host; fnic->role = FNIC_ROLE_FCP_INITIATOR; dev_info(&fnic->pdev->dev, "fnic: %d is scsi initiator\n", fnic->fnic_num); } break; default: dev_info(&fnic->pdev->dev, "fnic: %d has no role defined\n", fnic->fnic_num); err = -EINVAL; goto err_out_fnic_role; } /* Setup PCI resources */ pci_set_drvdata(pdev, fnic); fnic_get_res_counts(fnic); err = fnic_set_intr_mode(fnic); if (err) { dev_err(&fnic->pdev->dev, "Failed to set intr mode, " "aborting.\n"); goto err_out_fnic_set_intr_mode; } err = fnic_alloc_vnic_resources(fnic); if (err) { dev_err(&fnic->pdev->dev, "Failed to alloc vNIC resources, " "aborting.\n"); goto err_out_fnic_alloc_vnic_res; } dev_info(&fnic->pdev->dev, "fnic copy wqs: %d, Q0 ioreq table size: %d\n", fnic->wq_copy_count, fnic->sw_copy_wq[0].ioreq_table_size); /* initialize all fnic locks */ spin_lock_init(&fnic->fnic_lock); for (i = 0; i < FNIC_WQ_MAX; i++) spin_lock_init(&fnic->wq_lock[i]); for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { spin_lock_init(&fnic->wq_copy_lock[i]); fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; fnic->fw_ack_recd[i] = 0; fnic->fw_ack_index[i] = -1; } pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); if (!pool) { err = -ENOMEM; goto err_out_free_resources; } fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); if (!pool) { err = -ENOMEM; goto err_out_free_dflt_pool; } fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; pool = mempool_create_slab_pool(FDLS_MIN_FRAMES, fdls_frame_cache); if (!pool) { err = -ENOMEM; goto err_out_fdls_frame_pool; } fnic->frame_pool = pool; pool = mempool_create_slab_pool(FDLS_MIN_FRAME_ELEM, fdls_frame_elem_cache); if (!pool) { err = -ENOMEM; goto err_out_fdls_frame_elem_pool; } fnic->frame_elem_pool = pool; /* setup vlan config, hw inserts vlan header */ fnic->vlan_hw_insert = 1; fnic->vlan_id = 0; if (fnic->config.flags & VFCF_FIP_CAPABLE) { dev_info(&fnic->pdev->dev, "firmware supports FIP\n"); /* enable directed and multicast */ vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); vnic_dev_add_addr(fnic->vdev, iport->hwmac); spin_lock_init(&fnic->vlans_lock); INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame); INIT_LIST_HEAD(&fnic->fip_frame_queue); INIT_LIST_HEAD(&fnic->vlan_list); timer_setup(&fnic->retry_fip_timer, fnic_handle_fip_timer, 0); timer_setup(&fnic->fcs_ka_timer, fnic_handle_fcs_ka_timer, 0); timer_setup(&fnic->enode_ka_timer, fnic_handle_enode_ka_timer, 0); timer_setup(&fnic->vn_ka_timer, fnic_handle_vn_ka_timer, 0); fnic->set_vlan = fnic_set_vlan; } else { dev_info(&fnic->pdev->dev, "firmware uses non-FIP mode\n"); } fnic->state = FNIC_IN_FC_MODE; atomic_set(&fnic->in_flight, 0); fnic->state_flags = FNIC_FLAGS_NONE; /* Enable hardware stripping of vlan header on ingress */ fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); /* Setup notification buffer area */ err = fnic_notify_set(fnic); if (err) { dev_err(&fnic->pdev->dev, "Failed to alloc notify buffer, aborting.\n"); goto err_out_fnic_notify_set; } /* Setup notify timer when using MSI interrupts */ if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) timer_setup(&fnic->notify_timer, fnic_notify_timer, 0); /* allocate RQ buffers and post them to RQ*/ for (i = 0; i < fnic->rq_count; i++) { err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); if (err) { dev_err(&fnic->pdev->dev, "fnic_alloc_rq_frame can't alloc " "frame\n"); goto err_out_alloc_rq_buf; } } init_completion(&fnic->reset_completion_wait); /* Start local port initialization */ iport->max_flogi_retries = fnic->config.flogi_retries; iport->max_plogi_retries = fnic->config.plogi_retries; iport->plogi_timeout = fnic->config.plogi_timeout; iport->service_params = (FNIC_FCP_SP_INITIATOR | FNIC_FCP_SP_RD_XRDY_DIS | FNIC_FCP_SP_CONF_CMPL); if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) iport->service_params |= FNIC_FCP_SP_RETRY; iport->boot_time = jiffies; iport->e_d_tov = fnic->config.ed_tov; iport->r_a_tov = fnic->config.ra_tov; iport->link_supported_speeds = FNIC_PORTSPEED_10GBIT; iport->wwpn = fnic->config.port_wwn; iport->wwnn = fnic->config.node_wwn; iport->max_payload_size = fnic->config.maxdatafieldsize; if ((iport->max_payload_size < FNIC_MIN_DATA_FIELD_SIZE) || (iport->max_payload_size > FNIC_FC_MAX_PAYLOAD_LEN) || ((iport->max_payload_size % 4) != 0)) { iport->max_payload_size = FNIC_FC_MAX_PAYLOAD_LEN; } iport->flags |= FNIC_FIRST_LINK_UP; timer_setup(&(iport->fabric.retry_timer), fdls_fabric_timer_callback, 0); fnic->stats_reset_time = jiffies; INIT_WORK(&fnic->link_work, fnic_handle_link); INIT_WORK(&fnic->frame_work, fnic_handle_frame); INIT_WORK(&fnic->tport_work, fnic_tport_event_handler); INIT_WORK(&fnic->flush_work, fnic_flush_tx); INIT_LIST_HEAD(&fnic->frame_queue); INIT_LIST_HEAD(&fnic->tx_queue); INIT_LIST_HEAD(&fnic->tport_event_list); INIT_DELAYED_WORK(&iport->oxid_pool.schedule_oxid_free_retry, fdls_schedule_oxid_free_retry_work); /* Initialize the oxid reclaim list and work struct */ INIT_LIST_HEAD(&iport->oxid_pool.oxid_reclaim_list); INIT_DELAYED_WORK(&iport->oxid_pool.oxid_reclaim_work, fdls_reclaim_oxid_handler); /* Enable all queues */ for (i = 0; i < fnic->raw_wq_count; i++) vnic_wq_enable(&fnic->wq[i]); for (i = 0; i < fnic->rq_count; i++) { if (!ioread32(&fnic->rq[i].ctrl->enable)) vnic_rq_enable(&fnic->rq[i]); } for (i = 0; i < fnic->wq_copy_count; i++) vnic_wq_copy_enable(&fnic->hw_copy_wq[i]); vnic_dev_enable(fnic->vdev); err = fnic_request_intr(fnic); if (err) { dev_err(&fnic->pdev->dev, "Unable to request irq.\n"); goto err_out_fnic_request_intr; } fnic_notify_timer_start(fnic); fnic_fdls_init(fnic, (fnic->config.flags & VFCF_FIP_CAPABLE)); err = fnic_scsi_drv_init(fnic); if (err) goto err_out_scsi_drv_init; err = fnic_stats_debugfs_init(fnic); if (err) { dev_err(&fnic->pdev->dev, "Failed to initialize debugfs for stats\n"); goto err_out_free_stats_debugfs; } for (i = 0; i < fnic->intr_count; i++) vnic_intr_unmask(&fnic->intr[i]); spin_lock_irqsave(&fnic_list_lock, flags); list_add_tail(&fnic->list, &fnic_list); spin_unlock_irqrestore(&fnic_list_lock, flags); return 0; err_out_free_stats_debugfs: fnic_stats_debugfs_remove(fnic); fnic_free_ioreq_tables_mq(fnic); scsi_remove_host(fnic->host); err_out_scsi_drv_init: fnic_free_intr(fnic); err_out_fnic_request_intr: err_out_alloc_rq_buf: for (i = 0; i < fnic->rq_count; i++) { if (ioread32(&fnic->rq[i].ctrl->enable)) vnic_rq_disable(&fnic->rq[i]); vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); } vnic_dev_notify_unset(fnic->vdev); err_out_fnic_notify_set: mempool_destroy(fnic->frame_elem_pool); err_out_fdls_frame_elem_pool: mempool_destroy(fnic->frame_pool); err_out_fdls_frame_pool: mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); err_out_free_dflt_pool: mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); err_out_free_resources: fnic_free_vnic_resources(fnic); err_out_fnic_alloc_vnic_res: fnic_clear_intr_mode(fnic); err_out_fnic_set_intr_mode: scsi_host_put(fnic->host); err_out_fnic_role: err_out_scsi_host_alloc: err_out_fnic_get_config: err_out_dev_mac_addr: err_out_dev_init: vnic_dev_close(fnic->vdev); err_out_dev_open: err_out_dev_cmd_init: vnic_dev_unregister(fnic->vdev); err_out_dev_register: fnic_iounmap(fnic); err_out_fnic_map_bar: err_out_map_bar: err_out_set_dma_mask: pci_release_regions(pdev); err_out_pci_request_regions: pci_disable_device(pdev); err_out_pci_enable_device: ida_free(&fnic_ida, fnic->fnic_num); err_out_ida_alloc: kfree(fnic); err_out_fnic_alloc: return err; } static void fnic_remove(struct pci_dev *pdev) { struct fnic *fnic = pci_get_drvdata(pdev); unsigned long flags; /* * Sometimes when probe() fails and do not exit with an error code, * remove() gets called with 'drvdata' not set. Avoid a crash by * adding a defensive check. */ if (!fnic) return; spin_lock_irqsave(&fnic->fnic_lock, flags); fnic->stop_rx_link_events = 1; spin_unlock_irqrestore(&fnic->fnic_lock, flags); /* * Flush the fnic event queue. After this call, there should * be no event queued for this fnic device in the workqueue */ flush_workqueue(fnic_event_queue); fnic_scsi_unload(fnic); if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) del_timer_sync(&fnic->notify_timer); if (fnic->config.flags & VFCF_FIP_CAPABLE) { del_timer_sync(&fnic->retry_fip_timer); del_timer_sync(&fnic->fcs_ka_timer); del_timer_sync(&fnic->enode_ka_timer); del_timer_sync(&fnic->vn_ka_timer); fnic_free_txq(&fnic->fip_frame_queue); fnic_fcoe_reset_vlans(fnic); } if ((fnic_fdmi_support == 1) && (fnic->iport.fabric.fdmi_pending > 0)) del_timer_sync(&fnic->iport.fabric.fdmi_timer); fnic_stats_debugfs_remove(fnic); /* * This stops the fnic device, masks all interrupts. Completed * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are * cleaned up */ fnic_cleanup(fnic); spin_lock_irqsave(&fnic_list_lock, flags); list_del(&fnic->list); spin_unlock_irqrestore(&fnic_list_lock, flags); fnic_free_txq(&fnic->frame_queue); fnic_free_txq(&fnic->tx_queue); vnic_dev_notify_unset(fnic->vdev); fnic_free_intr(fnic); fnic_free_vnic_resources(fnic); fnic_clear_intr_mode(fnic); vnic_dev_close(fnic->vdev); vnic_dev_unregister(fnic->vdev); fnic_iounmap(fnic); pci_release_regions(pdev); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); ida_free(&fnic_ida, fnic->fnic_num); fnic_scsi_unload_cleanup(fnic); scsi_host_put(fnic->host); kfree(fnic); } static struct pci_driver fnic_driver = { .name = DRV_NAME, .id_table = fnic_id_table, .probe = fnic_probe, .remove = fnic_remove, }; static int __init fnic_init_module(void) { size_t len; int err = 0; printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); /* Create debugfs entries for fnic */ err = fnic_debugfs_init(); if (err < 0) { printk(KERN_ERR PFX "Failed to create fnic directory " "for tracing and stats logging\n"); fnic_debugfs_terminate(); } /* Allocate memory for trace buffer */ err = fnic_trace_buf_init(); if (err < 0) { printk(KERN_ERR PFX "Trace buffer initialization Failed. " "Fnic Tracing utility is disabled\n"); fnic_trace_free(); } /* Allocate memory for fc trace buffer */ err = fnic_fc_trace_init(); if (err < 0) { printk(KERN_ERR PFX "FC trace buffer initialization Failed " "FC frame tracing utility is disabled\n"); fnic_fc_trace_free(); } /* Create a cache for allocation of default size sgls */ len = sizeof(struct fnic_dflt_sgl_list); fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, SLAB_HWCACHE_ALIGN, NULL); if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); err = -ENOMEM; goto err_create_fnic_sgl_slab_dflt; } /* Create a cache for allocation of max size sgls*/ len = sizeof(struct fnic_sgl_list); fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, SLAB_HWCACHE_ALIGN, NULL); if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); err = -ENOMEM; goto err_create_fnic_sgl_slab_max; } /* Create a cache of io_req structs for use via mempool */ fnic_io_req_cache = kmem_cache_create("fnic_io_req", sizeof(struct fnic_io_req), 0, SLAB_HWCACHE_ALIGN, NULL); if (!fnic_io_req_cache) { printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); err = -ENOMEM; goto err_create_fnic_ioreq_slab; } fdls_frame_cache = kmem_cache_create("fdls_frames", FNIC_FCOE_FRAME_MAXSZ, 0, SLAB_HWCACHE_ALIGN, NULL); if (!fdls_frame_cache) { pr_err("fnic fdls frame cache create failed\n"); err = -ENOMEM; goto err_create_fdls_frame_cache; } fdls_frame_elem_cache = kmem_cache_create("fdls_frame_elem", sizeof(struct fnic_frame_list), 0, SLAB_HWCACHE_ALIGN, NULL); if (!fdls_frame_elem_cache) { pr_err("fnic fdls frame elem cache create failed\n"); err = -ENOMEM; goto err_create_fdls_frame_cache_elem; } fnic_event_queue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fnic_event_wq"); if (!fnic_event_queue) { printk(KERN_ERR PFX "fnic work queue create failed\n"); err = -ENOMEM; goto err_create_fnic_workq; } fnic_fip_queue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, "fnic_fip_q"); if (!fnic_fip_queue) { printk(KERN_ERR PFX "fnic FIP work queue create failed\n"); err = -ENOMEM; goto err_create_fip_workq; } if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON) { reset_fnic_work_queue = create_singlethread_workqueue("reset_fnic_work_queue"); if (!reset_fnic_work_queue) { pr_err("reset fnic work queue create failed\n"); err = -ENOMEM; goto err_create_reset_fnic_workq; } spin_lock_init(&reset_fnic_list_lock); INIT_LIST_HEAD(&reset_fnic_list); INIT_WORK(&reset_fnic_work, fnic_reset_work_handler); } fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); if (!fnic_fc_transport) { printk(KERN_ERR PFX "fc_attach_transport error\n"); err = -ENOMEM; goto err_fc_transport; } /* register the driver with PCI system */ err = pci_register_driver(&fnic_driver); if (err < 0) { printk(KERN_ERR PFX "pci register error\n"); goto err_pci_register; } return err; err_pci_register: fc_release_transport(fnic_fc_transport); err_fc_transport: destroy_workqueue(fnic_fip_queue); err_create_fip_workq: if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON) destroy_workqueue(reset_fnic_work_queue); err_create_reset_fnic_workq: destroy_workqueue(fnic_event_queue); err_create_fnic_workq: kmem_cache_destroy(fdls_frame_elem_cache); err_create_fdls_frame_cache_elem: kmem_cache_destroy(fdls_frame_cache); err_create_fdls_frame_cache: kmem_cache_destroy(fnic_io_req_cache); err_create_fnic_ioreq_slab: kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); err_create_fnic_sgl_slab_max: kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); err_create_fnic_sgl_slab_dflt: fnic_trace_free(); fnic_fc_trace_free(); fnic_debugfs_terminate(); return err; } static void __exit fnic_cleanup_module(void) { pci_unregister_driver(&fnic_driver); destroy_workqueue(fnic_event_queue); if (pc_rscn_handling_feature_flag == PC_RSCN_HANDLING_FEATURE_ON) destroy_workqueue(reset_fnic_work_queue); if (fnic_fip_queue) { flush_workqueue(fnic_fip_queue); destroy_workqueue(fnic_fip_queue); } kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); kmem_cache_destroy(fnic_io_req_cache); kmem_cache_destroy(fdls_frame_cache); fc_release_transport(fnic_fc_transport); fnic_trace_free(); fnic_fc_trace_free(); fnic_debugfs_terminate(); ida_destroy(&fnic_ida); } module_init(fnic_init_module); module_exit(fnic_cleanup_module);