From e0335f67a281cb8eb11868e614ee9390fbbe9b1d Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Sat, 18 May 2013 04:01:36 +0000 Subject: libfc: Reject PLOGI from nodes with incompatible role Reject a PLOGI from a node with an incompatible role, that is, initiator-to-initiator or target-to-target. Signed-off-by: Mark Rustad Reviewed-by: Yi Zou Tested-by: Jack Morgan Signed-off-by: Robert Love diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 6bbb944..c710d90 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -926,6 +926,20 @@ err: kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy); } +static bool +fc_rport_compatible_roles(struct fc_lport *lport, struct fc_rport_priv *rdata) +{ + if (rdata->ids.roles == FC_PORT_ROLE_UNKNOWN) + return true; + if ((rdata->ids.roles & FC_PORT_ROLE_FCP_TARGET) && + (lport->service_params & FCP_SPPF_INIT_FCN)) + return true; + if ((rdata->ids.roles & FC_PORT_ROLE_FCP_INITIATOR) && + (lport->service_params & FCP_SPPF_TARG_FCN)) + return true; + return false; +} + /** * fc_rport_enter_plogi() - Send Port Login (PLOGI) request * @rdata: The remote port to send a PLOGI to @@ -938,6 +952,12 @@ static void fc_rport_enter_plogi(struct fc_rport_priv *rdata) struct fc_lport *lport = rdata->local_port; struct fc_frame *fp; + if (!fc_rport_compatible_roles(lport, rdata)) { + FC_RPORT_DBG(rdata, "PLOGI suppressed for incompatible role\n"); + fc_rport_state_enter(rdata, RPORT_ST_PLOGI_WAIT); + return; + } + FC_RPORT_DBG(rdata, "Port entered PLOGI state from %s state\n", fc_rport_state(rdata)); @@ -1646,6 +1666,13 @@ static void fc_rport_recv_plogi_req(struct fc_lport *lport, rjt_data.explan = ELS_EXPL_NONE; goto reject; } + if (!fc_rport_compatible_roles(lport, rdata)) { + FC_RPORT_DBG(rdata, "Received PLOGI for incompatible role\n"); + mutex_unlock(&rdata->rp_mutex); + rjt_data.reason = ELS_RJT_LOGIC; + rjt_data.explan = ELS_EXPL_NONE; + goto reject; + } /* * Get session payload size from incoming PLOGI. -- cgit v0.10.2 From f07d46bbc9ba9a08b338dec7bb858977d4d822fb Mon Sep 17 00:00:00 2001 From: Neerav Parikh Date: Sat, 18 May 2013 05:12:28 +0000 Subject: fcoe: Fix smatch warning in fcoe_fdmi_info function This patch fixes a smatch warning as below: smatch warnings: drivers/scsi/fcoe/fcoe.c:782 fcoe_fdmi_info() warn: 'fdmi' puts 896 bytes on stack Reported-by: Fengguang Wu Signed-off-by: Neerav Parikh Tested-by: Jack Morgan Signed-off-by: Robert Love diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 32ae6c6..3336e57 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -774,7 +774,6 @@ static void fcoe_fdmi_info(struct fc_lport *lport, struct net_device *netdev) struct fcoe_port *port; struct net_device *realdev; int rc; - struct netdev_fcoe_hbainfo fdmi; port = lport_priv(lport); fcoe = port->priv; @@ -788,9 +787,13 @@ static void fcoe_fdmi_info(struct fc_lport *lport, struct net_device *netdev) return; if (realdev->netdev_ops->ndo_fcoe_get_hbainfo) { - memset(&fdmi, 0, sizeof(fdmi)); + struct netdev_fcoe_hbainfo *fdmi; + fdmi = kzalloc(sizeof(*fdmi), GFP_KERNEL); + if (!fdmi) + return; + rc = realdev->netdev_ops->ndo_fcoe_get_hbainfo(realdev, - &fdmi); + fdmi); if (rc) { printk(KERN_INFO "fcoe: Failed to retrieve FDMI " "information from netdev.\n"); @@ -800,38 +803,39 @@ static void fcoe_fdmi_info(struct fc_lport *lport, struct net_device *netdev) snprintf(fc_host_serial_number(lport->host), FC_SERIAL_NUMBER_SIZE, "%s", - fdmi.serial_number); + fdmi->serial_number); snprintf(fc_host_manufacturer(lport->host), FC_SERIAL_NUMBER_SIZE, "%s", - fdmi.manufacturer); + fdmi->manufacturer); snprintf(fc_host_model(lport->host), FC_SYMBOLIC_NAME_SIZE, "%s", - fdmi.model); + fdmi->model); snprintf(fc_host_model_description(lport->host), FC_SYMBOLIC_NAME_SIZE, "%s", - fdmi.model_description); + fdmi->model_description); snprintf(fc_host_hardware_version(lport->host), FC_VERSION_STRING_SIZE, "%s", - fdmi.hardware_version); + fdmi->hardware_version); snprintf(fc_host_driver_version(lport->host), FC_VERSION_STRING_SIZE, "%s", - fdmi.driver_version); + fdmi->driver_version); snprintf(fc_host_optionrom_version(lport->host), FC_VERSION_STRING_SIZE, "%s", - fdmi.optionrom_version); + fdmi->optionrom_version); snprintf(fc_host_firmware_version(lport->host), FC_VERSION_STRING_SIZE, "%s", - fdmi.firmware_version); + fdmi->firmware_version); /* Enable FDMI lport states */ lport->fdmi_enabled = 1; + kfree(fdmi); } else { lport->fdmi_enabled = 0; printk(KERN_INFO "fcoe: No FDMI support.\n"); -- cgit v0.10.2 From 418a8cfe69c3b6bd4598e9870b9f412e2c247214 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Sat, 18 May 2013 06:28:17 +0000 Subject: fcoe: fix the link error status block sparse warnings Both fcoe_fc_els_lesb and fc_els_lesb are in __be32 already, and both are exactly the same size in bytes, with somewhat different member names to reflect the fact the former is for Ethernet media the latter is for Fiber Channel, so, remove conversion and use __be32 directly. This fixes the warning from sparse check. Signed-off-by: Yi Zou Reported-by: Fengguang Wu Tested-by: Jack Morgan Signed-off-by: Robert Love diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index f3a5a53..bedd422 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -180,24 +180,10 @@ void fcoe_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev) { struct fcoe_ctlr *fip = fcoe_ctlr_device_priv(ctlr_dev); struct net_device *netdev = fcoe_get_netdev(fip->lp); - struct fcoe_fc_els_lesb *fcoe_lesb; - struct fc_els_lesb fc_lesb; - - __fcoe_get_lesb(fip->lp, &fc_lesb, netdev); - fcoe_lesb = (struct fcoe_fc_els_lesb *)(&fc_lesb); - - ctlr_dev->lesb.lesb_link_fail = - ntohl(fcoe_lesb->lesb_link_fail); - ctlr_dev->lesb.lesb_vlink_fail = - ntohl(fcoe_lesb->lesb_vlink_fail); - ctlr_dev->lesb.lesb_miss_fka = - ntohl(fcoe_lesb->lesb_miss_fka); - ctlr_dev->lesb.lesb_symb_err = - ntohl(fcoe_lesb->lesb_symb_err); - ctlr_dev->lesb.lesb_err_block = - ntohl(fcoe_lesb->lesb_err_block); - ctlr_dev->lesb.lesb_fcs_error = - ntohl(fcoe_lesb->lesb_fcs_error); + struct fc_els_lesb *fc_lesb; + + fc_lesb = (struct fc_els_lesb *)(&ctlr_dev->lesb); + __fcoe_get_lesb(fip->lp, fc_lesb, netdev); } EXPORT_SYMBOL_GPL(fcoe_ctlr_get_lesb); -- cgit v0.10.2 From 4a80f083dd70a200763e77d3eeee48bdf753c7df Mon Sep 17 00:00:00 2001 From: Robert Love Date: Tue, 11 Jun 2013 07:28:03 +0000 Subject: libfc: Remove extra space in fc_exch_timer_cancel definition Simply remove an extra space that violates coding style. Signed-off-by: Robert Love Tested-by: Jack Morgan Acked-by: Neil Horman diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 8b928c6..e98ea6a 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -337,7 +337,7 @@ static void fc_exch_release(struct fc_exch *ep) * fc_exch_timer_cancel() - cancel exch timer * @ep: The exchange whose timer to be canceled */ -static inline void fc_exch_timer_cancel(struct fc_exch *ep) +static inline void fc_exch_timer_cancel(struct fc_exch *ep) { if (cancel_delayed_work(&ep->timeout_work)) { FC_EXCH_DBG(ep, "Exchange timer canceled\n"); -- cgit v0.10.2 From 3a2926054acf876313afaaddac00a8ad255f6d68 Mon Sep 17 00:00:00 2001 From: Robert Love Date: Tue, 11 Jun 2013 07:28:09 +0000 Subject: libfc: Differentiate echange timer cancellation debug statements There are two debug statements with the same output string regarding echange timer cancellation. This patch simply changes the output of one string so that they can be differentiated. Signed-off-by: Robert Love Tested-by: Jack Morgan Acked-by: Neil Horman diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index e98ea6a..5879929 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -1567,7 +1567,7 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp) fc_exch_rctl_name(fh->fh_r_ctl)); if (cancel_delayed_work_sync(&ep->timeout_work)) { - FC_EXCH_DBG(ep, "Exchange timer canceled\n"); + FC_EXCH_DBG(ep, "Exchange timer canceled due to ABTS response\n"); fc_exch_release(ep); /* release from pending timer hold */ } -- cgit v0.10.2 From a2ceb1fbaa875172345f611a3d37c3662f7e5082 Mon Sep 17 00:00:00 2001 From: Robert Love Date: Tue, 11 Jun 2013 07:28:19 +0000 Subject: libfcoe: Fix meaningless log statement ctlr_dev was initialized to NULL, and never re-assigned. This caused the log statement to always report failure. This patch removes the unused variable and fixes the log statement to always report 'success', as that is what should be logged if the code reaches this point. Signed-off-by: Robert Love Tested-by: Jack Morgan Acked-by: Neil Horman diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index bedd422..f1ae5ed 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -707,7 +707,6 @@ ssize_t fcoe_ctlr_create_store(struct bus_type *bus, { struct net_device *netdev = NULL; struct fcoe_transport *ft = NULL; - struct fcoe_ctlr_device *ctlr_dev = NULL; int rc = 0; int err; @@ -754,9 +753,8 @@ ssize_t fcoe_ctlr_create_store(struct bus_type *bus, goto out_putdev; } - LIBFCOE_TRANSPORT_DBG("transport %s %s to create fcoe on %s.\n", - ft->name, (ctlr_dev) ? "succeeded" : "failed", - netdev->name); + LIBFCOE_TRANSPORT_DBG("transport %s succeeded to create fcoe on %s.\n", + ft->name, netdev->name); out_putdev: dev_put(netdev); -- cgit v0.10.2 From d17efa001aacaa774581972230b1a9db1e618ded Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Sat, 18 May 2013 04:10:07 +0000 Subject: fcoe: Stop fc_rport_priv structure leak When repeatedly doing rmmod and modprobe on the ixgbe driver while FCoE is active in a VN2VN configuration, memory leaks would be discovered by kmemleak with the following backtrace: unreferenced object 0xffff88003d076000 (size 1024): comm "kworker/0:3", pid 2998, jiffies 4295436448 (age 1015.332s) hex dump (first 32 bytes): 48 8a fe 6f 00 88 ff ff 00 00 00 00 00 00 00 00 H..o............ 01 00 00 00 02 00 00 00 7b ac 87 21 1b 00 00 10 ........{..!.... backtrace: [] kmemleak_alloc+0x5b/0xc0 [] __kmalloc+0xd8/0x1b0 [] fc_rport_create+0x48/0x1f0 [libfc] [] fcoe_ctlr_vn_add.isra.10+0x56/0x1a0 [libfcoe] [] fcoe_ctlr_vn_recv+0x8b0/0xab0 [libfcoe] [] fcoe_ctlr_recv_work+0x4c6/0xf60 [libfcoe] [] process_one_work+0x1e4/0x4d0 [] worker_thread+0x10f/0x380 [] kthread+0xea/0xf0 [] ret_from_fork+0x7c/0xb0 [] 0xffffffffffffffff This patch stops the leak of the fc_rport_priv structure. Signed-off-by: Mark Rustad Tested-by: Jack Morgan Signed-off-by: Robert Love diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c index 795843d..203415e 100644 --- a/drivers/scsi/fcoe/fcoe_ctlr.c +++ b/drivers/scsi/fcoe/fcoe_ctlr.c @@ -2090,7 +2090,11 @@ static struct fc_rport_operations fcoe_ctlr_vn_rport_ops = { */ static void fcoe_ctlr_disc_stop_locked(struct fc_lport *lport) { + struct fc_rport_priv *rdata; + mutex_lock(&lport->disc.disc_mutex); + list_for_each_entry_rcu(rdata, &lport->disc.rports, peers) + lport->tt.rport_logoff(rdata); lport->disc.disc_callback = NULL; mutex_unlock(&lport->disc.disc_mutex); } -- cgit v0.10.2 From 7a5ed75a782a1f2de7fc773981ecd88bfa7595b1 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Tue, 25 Jun 2013 17:49:40 +0000 Subject: fcoe: Reduce number of sparse warnings Declare local variables and functions 'static'. This patch does not change any functionality. Signed-off-by: Bart Van Assche Signed-off-by: Robert Love diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c index 8c05ae01..c9382d6 100644 --- a/drivers/scsi/fcoe/fcoe_sysfs.c +++ b/drivers/scsi/fcoe/fcoe_sysfs.c @@ -507,7 +507,7 @@ static const struct attribute_group *fcoe_fcf_attr_groups[] = { NULL, }; -struct bus_type fcoe_bus_type; +static struct bus_type fcoe_bus_type; static int fcoe_bus_match(struct device *dev, struct device_driver *drv) @@ -541,25 +541,25 @@ static void fcoe_fcf_device_release(struct device *dev) kfree(fcf); } -struct device_type fcoe_ctlr_device_type = { +static struct device_type fcoe_ctlr_device_type = { .name = "fcoe_ctlr", .groups = fcoe_ctlr_attr_groups, .release = fcoe_ctlr_device_release, }; -struct device_type fcoe_fcf_device_type = { +static struct device_type fcoe_fcf_device_type = { .name = "fcoe_fcf", .groups = fcoe_fcf_attr_groups, .release = fcoe_fcf_device_release, }; -struct bus_attribute fcoe_bus_attr_group[] = { +static struct bus_attribute fcoe_bus_attr_group[] = { __ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store), __ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store), __ATTR_NULL }; -struct bus_type fcoe_bus_type = { +static struct bus_type fcoe_bus_type = { .name = "fcoe", .match = &fcoe_bus_match, .bus_attrs = fcoe_bus_attr_group, @@ -569,7 +569,7 @@ struct bus_type fcoe_bus_type = { * fcoe_ctlr_device_flush_work() - Flush a FIP ctlr's workqueue * @ctlr: Pointer to the FIP ctlr whose workqueue is to be flushed */ -void fcoe_ctlr_device_flush_work(struct fcoe_ctlr_device *ctlr) +static void fcoe_ctlr_device_flush_work(struct fcoe_ctlr_device *ctlr) { if (!fcoe_ctlr_work_q(ctlr)) { printk(KERN_ERR @@ -590,8 +590,8 @@ void fcoe_ctlr_device_flush_work(struct fcoe_ctlr_device *ctlr) * Return value: * 1 on success / 0 already queued / < 0 for error */ -int fcoe_ctlr_device_queue_work(struct fcoe_ctlr_device *ctlr, - struct work_struct *work) +static int fcoe_ctlr_device_queue_work(struct fcoe_ctlr_device *ctlr, + struct work_struct *work) { if (unlikely(!fcoe_ctlr_work_q(ctlr))) { printk(KERN_ERR @@ -609,7 +609,7 @@ int fcoe_ctlr_device_queue_work(struct fcoe_ctlr_device *ctlr, * fcoe_ctlr_device_flush_devloss() - Flush a FIP ctlr's devloss workqueue * @ctlr: Pointer to FIP ctlr whose workqueue is to be flushed */ -void fcoe_ctlr_device_flush_devloss(struct fcoe_ctlr_device *ctlr) +static void fcoe_ctlr_device_flush_devloss(struct fcoe_ctlr_device *ctlr) { if (!fcoe_ctlr_devloss_work_q(ctlr)) { printk(KERN_ERR @@ -631,9 +631,9 @@ void fcoe_ctlr_device_flush_devloss(struct fcoe_ctlr_device *ctlr) * Return value: * 1 on success / 0 already queued / < 0 for error */ -int fcoe_ctlr_device_queue_devloss_work(struct fcoe_ctlr_device *ctlr, - struct delayed_work *work, - unsigned long delay) +static int fcoe_ctlr_device_queue_devloss_work(struct fcoe_ctlr_device *ctlr, + struct delayed_work *work, + unsigned long delay) { if (unlikely(!fcoe_ctlr_devloss_work_q(ctlr))) { printk(KERN_ERR -- cgit v0.10.2