From patchwork Wed Oct 2 18:24:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Karan Tilak Kumar (kartilak)" X-Patchwork-Id: 13820226 Received: from rcdn-iport-1.cisco.com (rcdn-iport-1.cisco.com [173.37.86.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8BAA1D172D; Wed, 2 Oct 2024 18:29:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=173.37.86.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727893796; cv=none; b=i1Dl3VeMHyw/2bttp6BFVvtUM6Icti342/8UPefmT6Op4ftyZp3q+4e/2KnG8nfxJYkAzcYOpvoWPY+VjKzpPWvdW4DqSTRthwGxaw0LfyMV7fxE/aWSN6VOHLlSDQ1rbrppUWdcglkiQFqGFl0JUby1QYgl7M+2K+PBQY1FTCo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727893796; c=relaxed/simple; bh=wRT/xJmcdvf7Murs/mxjeickKg7D8CP26mwFxcoIvEM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=sCtDY1Xky7z2XoNl5ICN0KxkwkXPCmJFNXyWAi68UxxZI1yVneDSSewSd9XkpKYCtIRxyGkQTjAfVRFFPf9YgklDqiDOzij6PsYP2aJK1THz2Gf7bdZfsicFjrroiDQC8ovxHkYVRb29HKE4sipPdN5odaf180osxnQw8WZDeK0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com; spf=pass smtp.mailfrom=cisco.com; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b=a7AdftVf; arc=none smtp.client-ip=173.37.86.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cisco.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b="a7AdftVf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=40129; q=dns/txt; s=iport; t=1727893794; x=1729103394; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ej+aYDsixI5e/OPp+KZm1iM91g832qb/1Uqp4BYpfUY=; b=a7AdftVfvsv43HHBmHdtwIV1CDVqjk7F3zbCLulAnX2OURu7DqmRTzwJ GB6JQdlDsagcOhK12aGM+Gn90aUHjB8gtdsPhYBDAsZlMAIf8k2vUN0MG 7qH7R4G1nwk3LQDtuBC+c0AuvGbDZUYPlgaODYszsZFaSDXG9tlsozWo+ g=; X-CSE-ConnectionGUID: 6S5+bYkVTAOz4u5AvTtUUw== X-CSE-MsgGUID: yEg1ltlrSVio/cmqe68d8Q== X-IronPort-AV: E=Sophos;i="6.11,172,1725321600"; d="scan'208";a="268620799" Received: from rcdn-core-8.cisco.com ([173.37.93.144]) by rcdn-iport-1.cisco.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2024 18:29:53 +0000 Received: from localhost.cisco.com ([10.193.101.253]) (authenticated bits=0) by rcdn-core-8.cisco.com (8.15.2/8.15.2) with ESMTPSA id 492IOHQt009807 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 2 Oct 2024 18:29:52 GMT From: Karan Tilak Kumar To: sebaddel@cisco.com Cc: arulponn@cisco.com, djhawar@cisco.com, gcboffa@cisco.com, mkai2@cisco.com, satishkh@cisco.com, aeasi@cisco.com, jejb@linux.ibm.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Karan Tilak Kumar Subject: [PATCH v4 10/14] scsi: fnic: Modify fnic interfaces to use FDLS Date: Wed, 2 Oct 2024 11:24:06 -0700 Message-Id: <20241002182410.68093-11-kartilak@cisco.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20241002182410.68093-1-kartilak@cisco.com> References: <20241002182410.68093-1-kartilak@cisco.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-User: kartilak@cisco.com X-Outbound-SMTP-Client: 10.193.101.253, [10.193.101.253] X-Outbound-Node: rcdn-core-8.cisco.com Modify fnic driver interfaces to use FDLS and supporting functions. Refactor code in fnic_probe and fnic_remove. Get fnic from shost_priv. Add error handling in stats processing functions. Modify some print statements. Add support to do module unload cleanup. Use placeholder functions/modify function declarations to not break compilation. Reviewed-by: Sesidhar Baddela Reviewed-by: Arulprabhu Ponnusamy Reviewed-by: Gian Carlo Boffa Signed-off-by: Arun Easi Signed-off-by: Karan Tilak Kumar --- Changes between v2 and v3: Modify scsi_unload to fix null pointer exception during fnic_remove. Replace fnic->host with fnic->lport->host to prevent compilation errors. Changes between v1 and v2: Incorporate review comments from Hannes from other patches: Replace pr_info with dev_info. Replace pr_err with dev_err. --- drivers/scsi/fnic/fnic.h | 12 +- drivers/scsi/fnic/fnic_attrs.c | 12 +- drivers/scsi/fnic/fnic_debugfs.c | 28 +- drivers/scsi/fnic/fnic_fcs.c | 16 + drivers/scsi/fnic/fnic_main.c | 491 +++++++++++++++++-------------- drivers/scsi/fnic/fnic_res.c | 30 +- drivers/scsi/fnic/fnic_scsi.c | 39 +++ drivers/scsi/fnic/fnic_trace.c | 6 + 8 files changed, 384 insertions(+), 250 deletions(-) diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h index c6fe9eec9a0c..58d864b59c89 100644 --- a/drivers/scsi/fnic/fnic.h +++ b/drivers/scsi/fnic/fnic.h @@ -81,6 +81,7 @@ #define IS_FNIC_FCP_INITIATOR(fnic) (fnic->role == FNIC_ROLE_FCP_INITIATOR) #define FNIC_FW_RESET_TIMEOUT 60000 /* mSec */ +#define FNIC_FCOE_MAX_CMD_LEN 16 /* Retry supported by rport (returned by PRLI service parameters) */ #define FNIC_FC_RP_FLAGS_RETRY 0x1 @@ -340,6 +341,7 @@ struct fnic { int fnic_num; enum fnic_role_e role; struct fnic_iport_s iport; + struct Scsi_Host *host; struct fc_lport *lport; struct fcoe_ctlr ctlr; /* FIP FCoE controller structure */ struct vnic_dev_bar bar0; @@ -458,11 +460,6 @@ struct fnic { ____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX]; }; -static inline struct fnic *fnic_from_ctlr(struct fcoe_ctlr *fip) -{ - return container_of(fip, struct fnic, ctlr); -} - extern struct workqueue_struct *fnic_event_queue; extern struct workqueue_struct *fnic_fip_queue; extern const struct attribute_group *fnic_host_groups[]; @@ -491,6 +488,7 @@ int fnic_eh_host_reset_handler(struct scsi_cmnd *sc); int fnic_host_reset(struct Scsi_Host *shost); void fnic_reset(struct Scsi_Host *shost); int fnic_issue_fc_host_lip(struct Scsi_Host *shost); +void fnic_get_host_port_state(struct Scsi_Host *shost); void fnic_scsi_fcpio_reset(struct fnic *fnic); int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int copy_work_to_do, unsigned int cq_index); int fnic_wq_cmpl_handler(struct fnic *fnic, int); @@ -503,7 +501,7 @@ const char *fnic_state_to_str(unsigned int state); void fnic_mq_map_queues_cpus(struct Scsi_Host *host); void fnic_log_q_error(struct fnic *fnic); void fnic_handle_link_event(struct fnic *fnic); -void fnic_stats_debugfs_init(struct fnic *fnic); +int fnic_stats_debugfs_init(struct fnic *fnic); void fnic_stats_debugfs_remove(struct fnic *fnic); int fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *); @@ -532,5 +530,7 @@ unsigned int fnic_count_lun_ioreqs_wq(struct fnic *fnic, u32 hwq, struct scsi_device *device); unsigned int fnic_count_lun_ioreqs(struct fnic *fnic, struct scsi_device *device); +void fnic_scsi_unload(struct fnic *fnic); +void fnic_scsi_unload_cleanup(struct fnic *fnic); #endif /* _FNIC_H_ */ diff --git a/drivers/scsi/fnic/fnic_attrs.c b/drivers/scsi/fnic/fnic_attrs.c index 0c5e57c7e322..705718f0809b 100644 --- a/drivers/scsi/fnic/fnic_attrs.c +++ b/drivers/scsi/fnic/fnic_attrs.c @@ -11,8 +11,8 @@ static ssize_t fnic_show_state(struct device *dev, struct device_attribute *attr, char *buf) { - struct fc_lport *lp = shost_priv(class_to_shost(dev)); - struct fnic *fnic = lport_priv(lp); + struct fnic *fnic = + *((struct fnic **) shost_priv(class_to_shost(dev))); return sysfs_emit(buf, "%s\n", fnic_state_str[fnic->state]); } @@ -26,9 +26,13 @@ static ssize_t fnic_show_drv_version(struct device *dev, static ssize_t fnic_show_link_state(struct device *dev, struct device_attribute *attr, char *buf) { - struct fc_lport *lp = shost_priv(class_to_shost(dev)); + struct fnic *fnic = + *((struct fnic **) shost_priv(class_to_shost(dev))); - return sysfs_emit(buf, "%s\n", (lp->link_up) ? "Link Up" : "Link Down"); + return sysfs_emit(buf, "%s\n", + ((fnic->iport.state != FNIC_IPORT_STATE_INIT) && + (fnic->iport.state != FNIC_IPORT_STATE_LINK_WAIT)) ? + "Link Up" : "Link Down"); } static DEVICE_ATTR(fnic_state, S_IRUGO, fnic_show_state, NULL); diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c index 2619a2d4f5f1..3748bbe190f7 100644 --- a/drivers/scsi/fnic/fnic_debugfs.c +++ b/drivers/scsi/fnic/fnic_debugfs.c @@ -7,6 +7,9 @@ #include #include "fnic.h" +extern int fnic_get_debug_info(struct stats_debug_info *debug_buffer, + struct fnic *fnic); + static struct dentry *fnic_trace_debugfs_root; static struct dentry *fnic_trace_debugfs_file; static struct dentry *fnic_trace_enable; @@ -593,6 +596,7 @@ static int fnic_stats_debugfs_open(struct inode *inode, debug->buf_size = buf_size; memset((void *)debug->debug_buffer, 0, buf_size); debug->buffer_len = fnic_get_stats_data(debug, fnic_stats); + debug->buffer_len += fnic_get_debug_info(debug, fnic); file->private_data = debug; @@ -673,26 +677,48 @@ static const struct file_operations fnic_reset_debugfs_fops = { * It will create file stats and reset_stats under statistics/host# directory * to log per fnic stats. */ -void fnic_stats_debugfs_init(struct fnic *fnic) +int fnic_stats_debugfs_init(struct fnic *fnic) { + int rc = -1; char name[16]; snprintf(name, sizeof(name), "host%d", fnic->lport->host->host_no); + if (!fnic_stats_debugfs_root) { + pr_debug("fnic_stats root doesn't exist\n"); + return rc; + } + fnic->fnic_stats_debugfs_host = debugfs_create_dir(name, fnic_stats_debugfs_root); + if (!fnic->fnic_stats_debugfs_host) { + pr_debug("Cannot create host directory\n"); + return rc; + } + fnic->fnic_stats_debugfs_file = debugfs_create_file("stats", S_IFREG|S_IRUGO|S_IWUSR, fnic->fnic_stats_debugfs_host, fnic, &fnic_stats_debugfs_fops); + if (!fnic->fnic_stats_debugfs_file) { + pr_debug("Cannot create host stats file\n"); + return rc; + } + fnic->fnic_reset_debugfs_file = debugfs_create_file("reset_stats", S_IFREG|S_IRUGO|S_IWUSR, fnic->fnic_stats_debugfs_host, fnic, &fnic_reset_debugfs_fops); + if (!fnic->fnic_reset_debugfs_file) { + pr_debug("Cannot create host stats file\n"); + return rc; + } + rc = 0; + return rc; } /* diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c index 096530a5b096..c1bc7e8b4f67 100644 --- a/drivers/scsi/fnic/fnic_fcs.c +++ b/drivers/scsi/fnic/fnic_fcs.c @@ -80,6 +80,22 @@ static inline void fnic_fdls_set_fcoe_dstmac(struct fnic *fnic, memcpy(fnic->iport.fcfmac, dst_mac, 6); } +void fnic_get_host_port_state(struct Scsi_Host *shost) +{ + struct fnic *fnic = *((struct fnic **) shost_priv(shost)); + struct fnic_iport_s *iport = &fnic->iport; + unsigned long flags; + + spin_lock_irqsave(&fnic->fnic_lock, flags); + if (!fnic->link_status) + fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; + else if (iport->state == FNIC_IPORT_STATE_READY) + fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; + else + fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; + spin_unlock_irqrestore(&fnic->fnic_lock, flags); +} + void fnic_fdls_link_status_change(struct fnic *fnic, int linkup) { struct fnic_iport_s *iport = &fnic->iport; diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index bff2f125db9e..e18bc9916e55 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -66,6 +66,11 @@ unsigned int fnic_fdmi_support = 1; module_param(fnic_fdmi_support, int, 0644); MODULE_PARM_DESC(fnic_fdmi_support, "FDMI support"); +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"); @@ -84,9 +89,6 @@ 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"); -static struct libfc_function_template fnic_transport_template = { -}; - struct workqueue_struct *fnic_fip_queue; static int fnic_slave_alloc(struct scsi_device *sdev) @@ -148,7 +150,7 @@ static struct fc_function_template fnic_fc_functions = { .get_host_speed = fnic_get_host_speed, .show_host_speed = 1, .show_host_port_type = 1, - .get_host_port_state = fc_get_host_port_state, + .get_host_port_state = fnic_get_host_port_state, .show_host_port_state = 1, .show_host_symbolic_name = 1, .show_rport_maxframe_size = 1, @@ -160,79 +162,78 @@ static struct fc_function_template fnic_fc_functions = { .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, + .get_fc_host_stats = NULL, .reset_fc_host_stats = fnic_reset_host_stats, - .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), + .dd_fcrport_size = sizeof(struct rport_dd_data_s), .terminate_rport_io = fnic_terminate_rport_io, - .bsg_request = fc_lport_bsg_request, + .bsg_request = NULL, }; static void fnic_get_host_speed(struct Scsi_Host *shost) { - struct fc_lport *lp = shost_priv(shost); - struct fnic *fnic = lport_priv(lp); + struct fnic *fnic = *((struct fnic **) shost_priv(shost)); u32 port_speed = vnic_dev_port_speed(fnic->vdev); + FNIC_MAIN_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num, + "port_speed: %d 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->lport->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 fc_lport *lp = shost_priv(host); - struct fnic *fnic = lport_priv(lp); - struct fc_host_statistics *stats = &lp->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->lport->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); - + struct fc_host_statistics *stats; return stats; } @@ -313,8 +314,7 @@ void fnic_dump_fchost_stats(struct Scsi_Host *host, static void fnic_reset_host_stats(struct Scsi_Host *host) { int ret; - struct fc_lport *lp = shost_priv(host); - struct fnic *fnic = lport_priv(lp); + struct fnic *fnic = *((struct fnic **) shost_priv(host)); struct fc_host_statistics *stats; unsigned long flags; @@ -527,9 +527,23 @@ 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->lport->host; + + snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, + host->host_no); + + host->transportt = fnic_fc_transport; +} + static int fnic_scsi_drv_init(struct fnic *fnic) { struct Scsi_Host *host = fnic->lport->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) @@ -540,7 +554,7 @@ static int fnic_scsi_drv_init(struct fnic *fnic) 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 = FCOE_MAX_CMD_LEN; + host->max_cmd_len = FNIC_FCOE_MAX_CMD_LEN; host->nr_hw_queues = fnic->wq_copy_count; @@ -550,13 +564,62 @@ static int fnic_scsi_drv_init(struct fnic *fnic) 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); + } + + 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->lport->host, &pdev->dev); + if (err) { + dev_err(&fnic->pdev->dev, "fnic: scsi add host failed: aborting\n"); + return -1; + } + fc_host_maxframe_size(fnic->lport->host) = iport->max_payload_size; + fc_host_dev_loss_tmo(fnic->lport->host) = + fnic->config.port_down_timeout / 1000; + sprintf(fc_host_symbolic_name(fnic->lport->host), + DRV_NAME " v" DRV_VERSION " over %s", fnic->name); + fc_host_port_type(fnic->lport->host) = FC_PORTTYPE_NPORT; + fc_host_node_name(fnic->lport->host) = iport->wwnn; + fc_host_port_name(fnic->lport->host) = iport->wwpn; + fc_host_supported_classes(fnic->lport->host) = FC_COS_CLASS3; + memset(fc_host_supported_fc4s(fnic->lport->host), 0, + sizeof(fc_host_supported_fc4s(fnic->lport->host))); + fc_host_supported_fc4s(fnic->lport->host)[2] = 1; + fc_host_supported_fc4s(fnic->lport->host)[7] = 1; + fc_host_supported_speeds(fnic->lport->host) = 0; + fc_host_supported_speeds(fnic->lport->host) |= FC_PORTSPEED_8GBIT; + + dev_info(&fnic->pdev->dev, "shost_data: 0x%p\n", fnic->lport->host->shost_data); + if (fnic->lport->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->lport->host) = FC_TGTID_BIND_NONE; + } else { + dev_info(&fnic->pdev->dev, "Setting target binding to WWPN\n"); + fc_host_tgtid_bind_type(fnic->lport->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->lport->host); + return -ENOMEM; + } + return 0; } void fnic_mq_map_queues_cpus(struct Scsi_Host *host) { - struct fc_lport *lp = shost_priv(host); - struct fnic *fnic = lport_priv(lp); + 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]; @@ -581,31 +644,27 @@ void fnic_mq_map_queues_cpus(struct Scsi_Host *host) static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - struct Scsi_Host *host; - struct fc_lport *lp; + 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; - int hwq; char *desc, *subsys_desc; int len; /* - * Allocate SCSI Host and set up association between host, - * local port, and fnic + * Allocate fnic */ - lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); - if (!lp) { - dev_err(&pdev->dev, "Unable to alloc libfc local port\n"); + fnic = kzalloc(sizeof(struct fnic), GFP_KERNEL); + if (!fnic) { err = -ENOMEM; - goto err_out; + goto err_out_fnic_alloc; } - host = lp->host; - fnic = lport_priv(lp); + iport = &fnic->iport; fnic_id = ida_alloc(&fnic_ida, GFP_KERNEL); if (fnic_id < 0) { @@ -613,17 +672,9 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = fnic_id; goto err_out_ida_alloc; } - fnic->lport = lp; - fnic->ctlr.lp = lp; - fnic->link_events = 0; - fnic->pdev = pdev; - snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, - host->host_no); - - host->transportt = fnic_fc_transport; + fnic->pdev = pdev; fnic->fnic_num = fnic_id; - fnic_stats_debugfs_init(fnic); /* Find model name from PCIe subsys ID */ if (fnic_get_desc_by_devid(pdev, &desc, &subsys_desc) == 0) { @@ -645,13 +696,13 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = pci_enable_device(pdev); if (err) { dev_err(&fnic->pdev->dev, "Cannot enable PCI device, aborting.\n"); - goto err_out_free_hba; + 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_disable_device; + goto err_out_pci_request_regions; } pci_set_master(pdev); @@ -666,7 +717,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) { dev_err(&fnic->pdev->dev, "No usable DMA configuration " "aborting\n"); - goto err_out_release_regions; + goto err_out_set_dma_mask; } } @@ -674,7 +725,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 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_release_regions; + goto err_out_map_bar; } fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); @@ -685,7 +736,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_err(&fnic->pdev->dev, "Cannot memory-map BAR0 res hdr, " "aborting.\n"); err = -ENODEV; - goto err_out_release_regions; + goto err_out_fnic_map_bar; } fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); @@ -693,43 +744,67 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_err(&fnic->pdev->dev, "vNIC registration failed, " "aborting.\n"); err = -ENODEV; - goto err_out_iounmap; + 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_vnic_unregister; + 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_cmd_deinit; + 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_close; + goto err_out_dev_init; } - err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); + 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_close; + 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, fnic->ctlr.ctl_src_addr, ETH_ALEN); + 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_dev_close; + 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->lport->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); + goto err_out_fnic_role; } /* Setup PCI resources */ @@ -741,23 +816,14 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) { dev_err(&fnic->pdev->dev, "Failed to set intr mode, " "aborting.\n"); - goto err_out_dev_close; + 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_clear_intr; - } - - fnic_scsi_drv_init(fnic); - - 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); + 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); @@ -775,14 +841,9 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) fnic->fw_ack_index[i] = -1; } - err = -ENOMEM; - fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); - if (!fnic->io_req_pool) - goto err_out_free_resources; - pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); if (!pool) - goto err_out_free_ioreq_pool; + 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]); @@ -799,8 +860,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* 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, fnic->ctlr.ctl_src_addr); - fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); + 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_WORK(&fnic->flush_work, fnic_flush_tx); @@ -813,8 +873,6 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) fnic->set_vlan = fnic_set_vlan; } else { dev_info(&fnic->pdev->dev, "firmware uses non-FIP mode\n"); - fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); - fnic->ctlr.state = FIP_ST_NON_FIP; } fnic->state = FNIC_IN_FC_MODE; @@ -828,7 +886,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = fnic_notify_set(fnic); if (err) { dev_err(&fnic->pdev->dev, "Failed to alloc notify buffer, aborting.\n"); - goto err_out_free_max_pool; + goto err_out_fnic_notify_set; } /* Setup notify timer when using MSI interrupts */ @@ -841,10 +899,52 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) { dev_err(&fnic->pdev->dev, "fnic_alloc_rq_frame can't alloc " "frame\n"); - goto err_out_rq_buf; + 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_LIST_HEAD(&fnic->frame_queue); + INIT_LIST_HEAD(&fnic->tx_queue); + INIT_LIST_HEAD(&fnic->tport_event_list); + /* Enable all queues */ for (i = 0; i < fnic->raw_wq_count; i++) vnic_wq_enable(&fnic->wq[i]); @@ -855,158 +955,105 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 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_request_intr; - } - - /* - * Initialization done with PCI system, hardware, firmware. - * Add host to SCSI - */ - err = scsi_add_host(lp->host, &pdev->dev); - if (err) { - dev_err(&fnic->pdev->dev, "fnic: scsi_add_host failed...exiting\n"); - goto err_out_scsi_add_host; + goto err_out_fnic_request_intr; } + fnic_notify_timer_start(fnic); - /* Start local port initiatialization */ - - lp->link_up = 0; - - lp->max_retry_count = fnic->config.flogi_retries; - lp->max_rport_retry_count = fnic->config.plogi_retries; - lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | - FCP_SPPF_CONF_COMPL); - if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) - lp->service_params |= FCP_SPPF_RETRY; - - lp->boot_time = jiffies; - lp->e_d_tov = fnic->config.ed_tov; - lp->r_a_tov = fnic->config.ra_tov; - lp->link_supported_speeds = FC_PORTSPEED_10GBIT; - fc_set_wwnn(lp, fnic->config.node_wwn); - fc_set_wwpn(lp, fnic->config.port_wwn); - - fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); - - if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, - FCPIO_HOST_EXCH_RANGE_END, NULL)) { - err = -ENOMEM; - goto err_out_fc_exch_mgr_alloc; - } - - fc_lport_init_stats(lp); - fnic->stats_reset_time = jiffies; + fnic_fdls_init(fnic, (fnic->config.flags & VFCF_FIP_CAPABLE)); - fc_lport_config(lp); + if (IS_FNIC_FCP_INITIATOR(fnic) && fnic_scsi_drv_init(fnic)) + goto err_out_scsi_drv_init; - if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + - sizeof(struct fc_frame_header))) { - err = -EINVAL; - goto err_out_free_exch_mgr; + 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; } - fc_host_maxframe_size(lp->host) = lp->mfs; - fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000; - sprintf(fc_host_symbolic_name(lp->host), - DRV_NAME " v" DRV_VERSION " over %s", fnic->name); + 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); - 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_LIST_HEAD(&fnic->frame_queue); - INIT_LIST_HEAD(&fnic->tx_queue); - INIT_LIST_HEAD(&fnic->tport_event_list); - - fc_fabric_login(lp); - - vnic_dev_enable(fnic->vdev); - - for (i = 0; i < fnic->intr_count; i++) - vnic_intr_unmask(&fnic->intr[i]); - - fnic_notify_timer_start(fnic); - return 0; -err_out_free_exch_mgr: - fc_exch_mgr_free(lp); -err_out_fc_exch_mgr_alloc: - fc_remove_host(lp->host); - scsi_remove_host(lp->host); -err_out_scsi_add_host: +err_out_free_stats_debugfs: + fnic_stats_debugfs_remove(fnic); + scsi_remove_host(fnic->lport->host); +err_out_scsi_drv_init: fnic_free_intr(fnic); -err_out_request_intr: - for (i = 0; i < fnic->rq_count; i++) +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); -err_out_rq_buf: + } vnic_dev_notify_unset(fnic->vdev); -err_out_free_max_pool: +err_out_fnic_notify_set: 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_ioreq_pool: - mempool_destroy(fnic->io_req_pool); err_out_free_resources: - for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) - kfree(fnic->sw_copy_wq[hwq].io_req_table); fnic_free_vnic_resources(fnic); -err_out_clear_intr: +err_out_fnic_alloc_vnic_res: fnic_clear_intr_mode(fnic); -err_out_dev_close: +err_out_fnic_set_intr_mode: + if (IS_FNIC_FCP_INITIATOR(fnic)) + scsi_host_put(fnic->lport->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_cmd_deinit: -err_out_vnic_unregister: +err_out_dev_open: +err_out_dev_cmd_init: vnic_dev_unregister(fnic->vdev); -err_out_iounmap: +err_out_dev_register: fnic_iounmap(fnic); -err_out_release_regions: +err_out_fnic_map_bar: +err_out_map_bar: +err_out_set_dma_mask: pci_release_regions(pdev); -err_out_disable_device: +err_out_pci_request_regions: pci_disable_device(pdev); -err_out_free_hba: - fnic_stats_debugfs_remove(fnic); +err_out_pci_enable_device: ida_free(&fnic_ida, fnic->fnic_num); err_out_ida_alloc: - scsi_host_put(lp->host); -err_out: + kfree(fnic); +err_out_fnic_alloc: return err; } static void fnic_remove(struct pci_dev *pdev) { struct fnic *fnic = pci_get_drvdata(pdev); - struct fc_lport *lp = fnic->lport; unsigned long flags; - int hwq; - /* - * Mark state so that the workqueue thread stops forwarding - * received frames and link events to the local port. ISR and - * other threads that can queue work items will also stop - * creating work items on the fnic workqueue - */ spin_lock_irqsave(&fnic->fnic_lock, flags); fnic->stop_rx_link_events = 1; spin_unlock_irqrestore(&fnic->fnic_lock, flags); - if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) - del_timer_sync(&fnic->notify_timer); - /* * 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_free_txq(&fnic->frame_queue); - fnic_free_txq(&fnic->tx_queue); + + if (IS_FNIC_FCP_INITIATOR(fnic)) + 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); @@ -1021,19 +1068,6 @@ static void fnic_remove(struct pci_dev *pdev) if ((fnic_fdmi_support == 1) && (fnic->iport.fabric.fdmi_pending > 0)) del_timer_sync(&fnic->iport.fabric.fdmi_timer); - /* - * Log off the fabric. This stops all remote ports, dns port, - * logs off the fabric. This flushes all rport, disc, lport work - * before returning - */ - fc_fabric_logoff(fnic->lport); - - spin_lock_irqsave(&fnic->fnic_lock, flags); - fnic->in_remove = 1; - spin_unlock_irqrestore(&fnic->fnic_lock, flags); - - fcoe_ctlr_destroy(&fnic->ctlr); - fc_lport_destroy(lp); fnic_stats_debugfs_remove(fnic); /* @@ -1047,11 +1081,9 @@ static void fnic_remove(struct pci_dev *pdev) list_del(&fnic->list); spin_unlock_irqrestore(&fnic_list_lock, flags); - fc_remove_host(fnic->lport->host); - scsi_remove_host(fnic->lport->host); - for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) - kfree(fnic->sw_copy_wq[hwq].io_req_table); - fc_exch_mgr_free(fnic->lport); + 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); @@ -1061,8 +1093,13 @@ static void fnic_remove(struct pci_dev *pdev) fnic_iounmap(fnic); pci_release_regions(pdev); pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); ida_free(&fnic_ida, fnic->fnic_num); - scsi_host_put(lp->host); + if (IS_FNIC_FCP_INITIATOR(fnic)) { + fnic_scsi_unload_cleanup(fnic); + scsi_host_put(fnic->lport->host); + } + kfree(fnic); } static struct pci_driver fnic_driver = { @@ -1192,8 +1229,10 @@ static void __exit fnic_cleanup_module(void) { pci_unregister_driver(&fnic_driver); destroy_workqueue(fnic_event_queue); - if (fnic_fip_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); diff --git a/drivers/scsi/fnic/fnic_res.c b/drivers/scsi/fnic/fnic_res.c index dd24e25574db..763475587b7f 100644 --- a/drivers/scsi/fnic/fnic_res.c +++ b/drivers/scsi/fnic/fnic_res.c @@ -58,6 +58,11 @@ int fnic_get_vnic_config(struct fnic *fnic) GET_CONFIG(intr_mode); GET_CONFIG(wq_copy_count); + if ((c->flags & (VFCF_FC_INITIATOR)) == 0) { + dev_info(&fnic->pdev->dev, "vNIC role not defined (def role: FC Init)\n"); + c->flags |= VFCF_FC_INITIATOR; + } + c->wq_enet_desc_count = min_t(u32, VNIC_FNIC_WQ_DESCS_MAX, max_t(u32, VNIC_FNIC_WQ_DESCS_MIN, @@ -137,29 +142,28 @@ int fnic_get_vnic_config(struct fnic *fnic) c->wq_copy_count = min_t(u16, FNIC_WQ_COPY_MAX, c->wq_copy_count); - dev_info(&fnic->pdev->dev, "vNIC MAC addr %pM " - "wq/wq_copy/rq %d/%d/%d\n", - fnic->ctlr.ctl_src_addr, + dev_info(&fnic->pdev->dev, "fNIC MAC addr %p wq/wq_copy/rq %d/%d/%d\n", + fnic->data_src_addr, c->wq_enet_desc_count, c->wq_copy_desc_count, c->rq_desc_count); - dev_info(&fnic->pdev->dev, "vNIC node wwn %llx port wwn %llx\n", + dev_info(&fnic->pdev->dev, "fNIC node wwn 0x%llx port wwn 0x%llx\n", c->node_wwn, c->port_wwn); - dev_info(&fnic->pdev->dev, "vNIC ed_tov %d ra_tov %d\n", + dev_info(&fnic->pdev->dev, "fNIC ed_tov %d ra_tov %d\n", c->ed_tov, c->ra_tov); - dev_info(&fnic->pdev->dev, "vNIC mtu %d intr timer %d\n", + dev_info(&fnic->pdev->dev, "fNIC mtu %d intr timer %d\n", c->maxdatafieldsize, c->intr_timer); - dev_info(&fnic->pdev->dev, "vNIC flags 0x%x luns per tgt %d\n", + dev_info(&fnic->pdev->dev, "fNIC flags 0x%x luns per tgt %d\n", c->flags, c->luns_per_tgt); - dev_info(&fnic->pdev->dev, "vNIC flogi_retries %d flogi timeout %d\n", + dev_info(&fnic->pdev->dev, "fNIC flogi_retries %d flogi timeout %d\n", c->flogi_retries, c->flogi_timeout); - dev_info(&fnic->pdev->dev, "vNIC plogi retries %d plogi timeout %d\n", + dev_info(&fnic->pdev->dev, "fNIC plogi retries %d plogi timeout %d\n", c->plogi_retries, c->plogi_timeout); - dev_info(&fnic->pdev->dev, "vNIC io throttle count %d link dn timeout %d\n", + dev_info(&fnic->pdev->dev, "fNIC io throttle count %d link dn timeout %d\n", c->io_throttle_count, c->link_down_timeout); - dev_info(&fnic->pdev->dev, "vNIC port dn io retries %d port dn timeout %d\n", + dev_info(&fnic->pdev->dev, "fNIC port dn io retries %d port dn timeout %d\n", c->port_down_io_retries, c->port_down_timeout); - dev_info(&fnic->pdev->dev, "vNIC wq_copy_count: %d\n", c->wq_copy_count); - dev_info(&fnic->pdev->dev, "vNIC intr mode: %d\n", c->intr_mode); + dev_info(&fnic->pdev->dev, "fNIC wq_copy_count: %d\n", c->wq_copy_count); + dev_info(&fnic->pdev->dev, "fNIC intr mode: %d\n", c->intr_mode); return 0; } diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index c9907e05b54f..21bb5d92f04f 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1953,6 +1953,45 @@ void fnic_terminate_rport_io(struct fc_rport *rport) } } +/* + * FCP-SCSI specific handling for module unload + * + */ +void fnic_scsi_unload(struct fnic *fnic) +{ + unsigned long flags; + + /* + * Mark state so that the workqueue thread stops forwarding + * received frames and link events to the local port. ISR and + * other threads that can queue work items will also stop + * creating work items on the fnic workqueue + */ + spin_lock_irqsave(&fnic->fnic_lock, flags); + fnic->iport.state = FNIC_IPORT_STATE_LINK_WAIT; + spin_unlock_irqrestore(&fnic->fnic_lock, flags); + + if (fdls_get_state(&fnic->iport.fabric) != FDLS_STATE_INIT) + fnic_scsi_fcpio_reset(fnic); + + spin_lock_irqsave(&fnic->fnic_lock, flags); + fnic->in_remove = 1; + spin_unlock_irqrestore(&fnic->fnic_lock, flags); + + fnic_flush_tport_event_list(fnic); + fnic_delete_fcp_tports(fnic); +} + +void fnic_scsi_unload_cleanup(struct fnic *fnic) +{ + int hwq = 0; + + fc_remove_host(fnic->host); + scsi_remove_host(fnic->host); + for (hwq = 0; hwq < fnic->wq_copy_count; hwq++) + kfree(fnic->sw_copy_wq[hwq].io_req_table); +} + /* * This function is exported to SCSI for sending abort cmnds. * A SCSI IO is represented by a io_req in the driver. diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c index aaa4ea02fb7c..d717886808df 100644 --- a/drivers/scsi/fnic/fnic_trace.c +++ b/drivers/scsi/fnic/fnic_trace.c @@ -458,6 +458,12 @@ int fnic_get_stats_data(struct stats_debug_info *debug, } +int fnic_get_debug_info(struct stats_debug_info *info, struct fnic *fnic) +{ + /* Placeholder function */ + return 0; +} + /* * fnic_trace_buf_init - Initialize fnic trace buffer logging facility *