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* libfcoe: Fix fcoe_sysfs VN2VN modeRobert Love2013-03-261-15/+45
| | | | | | | | | | | | | | | | | | | The libfc discovery layer is being initialized in the 'create' paths for both legacy libfcoe module parameters and fcoe_sysfs control interfaces. The problem is that for VN2VN mode the discovery layer is initialized as if it were in 'fabric' mode and it is not re-configured when the mode is changed to 'vn2vn'. This patch splits out code that needs to be initialized once and code that can, and should be, re-configured when the mode changes. Additionally this patch makes that change so that the discovery layer can be reconfigured to the libfcoe implementation when in 'vn2vn' mode. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
* libfc, fcoe, bnx2fc: Split fc_disc_init into fc_disc_{init, config}Robert Love2013-03-263-10/+21
| | | | | | | | | Split discovery initialization in code that is setup once (fcoe_disc_init) and code that can be re-configured (fcoe_disc_config). Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
* libfc, fcoe, bnx2fc: Always use fcoe_disc_init for discovery layer ↵Robert Love2013-03-263-8/+10
| | | | | | | | | | | | | initialization Currently libfcoe is doing some libfc discovery layer initialization outside of libfc. This patch moves this code into libfc and sets up a split in discovery (one time) initialization code and (re-configurable) settings that will come in the next patch. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
* fcoe: Fix deadlock between create and destroy pathsRobert Love2013-03-251-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can deadlock (s_active and fcoe_config_mutex) if a port is being destroyed at the same time one is being created. [ 4200.503113] ====================================================== [ 4200.503114] [ INFO: possible circular locking dependency detected ] [ 4200.503116] 3.8.0-rc5+ #8 Not tainted [ 4200.503117] ------------------------------------------------------- [ 4200.503118] kworker/3:2/2492 is trying to acquire lock: [ 4200.503119] (s_active#292){++++.+}, at: [<ffffffff8122d20b>] sysfs_addrm_finish+0x3b/0x70 [ 4200.503127] but task is already holding lock: [ 4200.503128] (fcoe_config_mutex){+.+.+.}, at: [<ffffffffa02f3338>] fcoe_destroy_work+0xe8/0x120 [fcoe] [ 4200.503133] which lock already depends on the new lock. [ 4200.503135] the existing dependency chain (in reverse order) is: [ 4200.503136] -> #1 (fcoe_config_mutex){+.+.+.}: [ 4200.503139] [<ffffffff810c7711>] lock_acquire+0xa1/0x140 [ 4200.503143] [<ffffffff816ca7be>] mutex_lock_nested+0x6e/0x360 [ 4200.503146] [<ffffffffa02f11bd>] fcoe_enable+0x1d/0xb0 [fcoe] [ 4200.503148] [<ffffffffa02f127d>] fcoe_ctlr_enabled+0x2d/0x50 [fcoe] [ 4200.503151] [<ffffffffa02ffbe8>] store_ctlr_enabled+0x38/0x90 [libfcoe] [ 4200.503154] [<ffffffff81424878>] dev_attr_store+0x18/0x30 [ 4200.503157] [<ffffffff8122b750>] sysfs_write_file+0xe0/0x150 [ 4200.503160] [<ffffffff811b334c>] vfs_write+0xac/0x180 [ 4200.503162] [<ffffffff811b3692>] sys_write+0x52/0xa0 [ 4200.503164] [<ffffffff816d7159>] system_call_fastpath+0x16/0x1b [ 4200.503167] -> #0 (s_active#292){++++.+}: [ 4200.503170] [<ffffffff810c680f>] __lock_acquire+0x135f/0x1c90 [ 4200.503172] [<ffffffff810c7711>] lock_acquire+0xa1/0x140 [ 4200.503174] [<ffffffff8122c626>] sysfs_deactivate+0x116/0x160 [ 4200.503176] [<ffffffff8122d20b>] sysfs_addrm_finish+0x3b/0x70 [ 4200.503178] [<ffffffff8122b2eb>] sysfs_hash_and_remove+0x5b/0xb0 [ 4200.503180] [<ffffffff8122f3d1>] sysfs_remove_group+0x61/0x100 [ 4200.503183] [<ffffffff814251eb>] device_remove_groups+0x3b/0x60 [ 4200.503185] [<ffffffff81425534>] device_remove_attrs+0x44/0x80 [ 4200.503187] [<ffffffff81425e97>] device_del+0x127/0x1c0 [ 4200.503189] [<ffffffff81425f52>] device_unregister+0x22/0x60 [ 4200.503191] [<ffffffffa0300970>] fcoe_ctlr_device_delete+0xe0/0xf0 [libfcoe] [ 4200.503194] [<ffffffffa02f1b5c>] fcoe_interface_cleanup+0x6c/0xa0 [fcoe] [ 4200.503196] [<ffffffffa02f3355>] fcoe_destroy_work+0x105/0x120 [fcoe] [ 4200.503198] [<ffffffff8107ee91>] process_one_work+0x1a1/0x580 [ 4200.503203] [<ffffffff81080c6e>] worker_thread+0x15e/0x440 [ 4200.503205] [<ffffffff8108715a>] kthread+0xea/0xf0 [ 4200.503207] [<ffffffff816d70ac>] ret_from_fork+0x7c/0xb0 [ 4200.503209] other info that might help us debug this: [ 4200.503211] Possible unsafe locking scenario: [ 4200.503212] CPU0 CPU1 [ 4200.503213] ---- ---- [ 4200.503214] lock(fcoe_config_mutex); [ 4200.503215] lock(s_active#292); [ 4200.503218] lock(fcoe_config_mutex); [ 4200.503219] lock(s_active#292); [ 4200.503221] *** DEADLOCK *** [ 4200.503223] 3 locks held by kworker/3:2/2492: [ 4200.503224] #0: (fcoe){.+.+.+}, at: [<ffffffff8107ee2b>] process_one_work+0x13b/0x580 [ 4200.503228] #1: ((&port->destroy_work)){+.+.+.}, at: [<ffffffff8107ee2b>] process_one_work+0x13b/0x580 [ 4200.503232] #2: (fcoe_config_mutex){+.+.+.}, at: [<ffffffffa02f3338>] fcoe_destroy_work+0xe8/0x120 [fcoe] [ 4200.503236] stack backtrace: [ 4200.503238] Pid: 2492, comm: kworker/3:2 Not tainted 3.8.0-rc5+ #8 [ 4200.503240] Call Trace: [ 4200.503243] [<ffffffff816c2f09>] print_circular_bug+0x1fb/0x20c [ 4200.503246] [<ffffffff810c680f>] __lock_acquire+0x135f/0x1c90 [ 4200.503248] [<ffffffff810c463a>] ? debug_check_no_locks_freed+0x9a/0x180 [ 4200.503250] [<ffffffff810c7711>] lock_acquire+0xa1/0x140 [ 4200.503253] [<ffffffff8122d20b>] ? sysfs_addrm_finish+0x3b/0x70 [ 4200.503255] [<ffffffff8122c626>] sysfs_deactivate+0x116/0x160 [ 4200.503258] [<ffffffff8122d20b>] ? sysfs_addrm_finish+0x3b/0x70 [ 4200.503260] [<ffffffff8122d20b>] sysfs_addrm_finish+0x3b/0x70 [ 4200.503262] [<ffffffff8122b2eb>] sysfs_hash_and_remove+0x5b/0xb0 [ 4200.503265] [<ffffffff8122f3d1>] sysfs_remove_group+0x61/0x100 [ 4200.503273] [<ffffffff814251eb>] device_remove_groups+0x3b/0x60 [ 4200.503275] [<ffffffff81425534>] device_remove_attrs+0x44/0x80 [ 4200.503277] [<ffffffff81425e97>] device_del+0x127/0x1c0 [ 4200.503279] [<ffffffff81425f52>] device_unregister+0x22/0x60 [ 4200.503282] [<ffffffffa0300970>] fcoe_ctlr_device_delete+0xe0/0xf0 [libfcoe] [ 4200.503285] [<ffffffffa02f1b5c>] fcoe_interface_cleanup+0x6c/0xa0 [fcoe] [ 4200.503287] [<ffffffffa02f3355>] fcoe_destroy_work+0x105/0x120 [fcoe] [ 4200.503290] [<ffffffff8107ee91>] process_one_work+0x1a1/0x580 [ 4200.503292] [<ffffffff8107ee2b>] ? process_one_work+0x13b/0x580 [ 4200.503295] [<ffffffffa02f3250>] ? fcoe_if_destroy+0x230/0x230 [fcoe] [ 4200.503297] [<ffffffff81080c6e>] worker_thread+0x15e/0x440 [ 4200.503299] [<ffffffff81080b10>] ? busy_worker_rebind_fn+0x100/0x100 [ 4200.503301] [<ffffffff8108715a>] kthread+0xea/0xf0 [ 4200.503304] [<ffffffff81087070>] ? kthread_create_on_node+0x160/0x160 [ 4200.503306] [<ffffffff816d70ac>] ret_from_fork+0x7c/0xb0 [ 4200.503308] [<ffffffff81087070>] ? kthread_create_on_node+0x160/0x160 Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com>
* bnx2fc: Make the fcoe_cltr the SCSI host parentRobert Love2013-03-251-3/+2
| | | | | | | | | | | | | | | The fcoemon userspace daemon is searching for the a hostX under the the /sys/bus/fcoe/devices/ctlrX/ entries. When interfaces created using fcoe_sysfs and fcoe.ko this linkage is setup correctly, but bnx2fc is not doing the same thing and therefore fcoemon does not create the fcoe interface for bnx2fc. This patch sets up the correct linkage for bnx2fc such that fcoemon will work correctly with fcoe_sysfs and bnx2fc. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
* ACPI / glue: Add .match() callback to struct acpi_bus_typeRafael J. Wysocki2013-03-041-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | USB uses the .find_bridge() callback from struct acpi_bus_type incorrectly, because as a result of the way it is used by USB every device in the system that doesn't have a bus type or parent is passed to usb_acpi_find_device() for inspection. What USB actually needs, though, is to call usb_acpi_find_device() for USB ports that don't have a bus type defined, but have usb_port_device_type as their device type, as well as for USB devices. To fix that replace the struct bus_type pointer in struct acpi_bus_type used for matching devices to specific subsystems with a .match() callback to be used for this purpose and update the users of struct acpi_bus_type, including USB, accordingly. Define the .match() callback routine for USB, usb_acpi_bus_match(), in such a way that it will cover both USB devices and USB ports and remove the now redundant .find_bridge() callback pointer from usb_acpi_bus. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Jeff Garzik <jgarzik@pobox.com>
* Merge tag 'scsi-for-linus' of ↵Linus Torvalds2013-03-0267-1190/+4000
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This is an assorted set of stragglers into the merge window with driver updates for qla2xxx, megaraid_sas, storvsc and ufs. It also includes pulls of the uapi tree (all the remaining SCSI pieces) and the fcoe tree (updates to fcoe and libfc)" * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (81 commits) [SCSI] ufs: Separate PCI code into glue driver [SCSI] ufs: Segregate PCI Specific Code [SCSI] scsi: fix lpfc build when wmb() is defined as mb() [SCSI] storvsc: Handle dynamic resizing of the device [SCSI] storvsc: Restructure error handling code on command completion [SCSI] storvsc: avoid usage of WRITE_SAME [SCSI] aacraid: suppress two GCC warnings [SCSI] hpsa: check for dma_mapping_error in hpsa_passthru ioctls [SCSI] hpsa: reorganize error handling in hpsa_passthru_ioctl [SCSI] hpsa: check for dma_mapping_error in hpsa_map_sg_chain_block [SCSI] hpsa: Check for dma_mapping_error for all code paths using fill_cmd [SCSI] hpsa: Check for dma_mapping_error in hpsa_map_one [SCSI] dc395x: uninitialized variable in device_alloc() [SCSI] Fix range check in scsi_host_dif_capable() [SCSI] storvsc: Initialize the sglist [SCSI] mpt2sas: Add support for OEM specific controller [SCSI] ipr: Fix oops while resetting an ipr adapter [SCSI] fnic: Fnic Trace Utility [SCSI] fnic: New debug flags and debug log messages [SCSI] fnic: fnic driver may hit BUG_ON on device reset ...
| * [SCSI] Merge tag 'fcoe-02-19-13' into for-linusJames Bottomley2013-03-0110-288/+736
| |\ | | | | | | | | | | | | | | | FCoE Updates for 3.9 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| | * libfcoe: Check for unusable FCFs before looking for conflicting FCFsBhanu Prakash Gollapudi2013-02-191-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When there are multiple FCFs in the fabric, and one of them becomes unavailable, the fabric name for the unavailable FCF becomes 0 along with FIP_FL_AVAIL getting reset. In this case, FCF selection logic does not select any FCF as it first checks for conflicting FCFs (since fabric name is 0, it fails the condition), instead of first checking if it is usable or not. Fix it by first checking if FCF is usable and skip that FCF, and go to the next one in the list to check if it can be selected. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * libfc: XenServer fails to mount root filesystem.Krishna Mohan2013-02-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | schedule_delayed_work() is using msec instead of jiffies. On PLOGI reject from target, remote port retry is scheduled @ 20 sec instead of 2sec(FC_DEF_E_D_TOV). XenServer dom0 kernel is configured with CONFIG_HZ=100Hz Signed-off-by: Krishna Mohan <krmohan@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * libfcoe: Handle CVL while waiting to select an FCFBhanu Prakash Gollapudi2013-02-121-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a CVL is received while we wait to select best FCF, we drop it without handling it. This causes initiator and the switch to go out-of-sync. Initiator proceeds selecting one of the FCFs and tries to send FIP FLOGI. However the switch may reject the FLOGI, as it has cleared its internal state, and expects the initiator to start FIP discovery protocol. Fix this condition by resetting the fcoe controller. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Reviewed-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * fcoe: Fix deadlock while deleting FCoE interface with NPIV portsNeerav Parikh2013-01-281-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes following deadlock caused by destroying of an FCoE interface with active NPIV ports on that interface. Call Trace: [<ffffffff814b7e88>] schedule+0x64/0x66 [<ffffffff814b6b4f>] schedule_timeout+0x36/0xe3 [<ffffffff81070c55>] ? update_curr+0xd6/0x110 [<ffffffff81071f6b>] ? hrtick_update+0x1b/0x4d [<ffffffff81072405>] ? dequeue_task_fair+0x1ca/0x1d9 [<ffffffff8106a369>] ? need_resched+0x1e/0x28 [<ffffffff814b7d14>] wait_for_common+0x9b/0xf1 [<ffffffff8106e7be>] ? try_to_wake_up+0x1e0/0x1e0 [<ffffffff814b7e22>] wait_for_completion+0x1d/0x1f [<ffffffff8105ae82>] flush_workqueue+0x116/0x2a1 [<ffffffff8105b357>] drain_workqueue+0x66/0x14c [<ffffffff8105b8ef>] destroy_workqueue+0x1a/0xcf [<ffffffffa009211e>] fc_remove_host+0x154/0x17f [scsi_transport_fc] [<ffffffffa00edbb8>] fcoe_if_destroy+0x184/0x1c9 [fcoe] [<ffffffffa00edc28>] fcoe_destroy_work+0x2b/0x44 [fcoe] [<ffffffff8105a82a>] process_one_work+0x1a8/0x2a4 [<ffffffffa00edbfd>] ? fcoe_if_destroy+0x1c9/0x1c9 [fcoe] [<ffffffff8105c396>] worker_thread+0x1db/0x268 [<ffffffff810604a3>] ? wake_up_bit+0x2a/0x2a [<ffffffff8105c1bb>] ? manage_workers.clone.16+0x1f6/0x1f6 [<ffffffff8105ffd6>] kthread+0x6f/0x77 [<ffffffff814c0304>] kernel_thread_helper+0x4/0x10 [<ffffffff8105ff67>] ? kthread_freezable_should_stop+0x4b/0x4b Call Trace: [<ffffffff814b7e88>] schedule+0x64/0x66 [<ffffffff814b8041>] schedule_preempt_disabled+0xe/0x10 [<ffffffff814b70a1>] __mutex_lock_common.clone.5+0x117/0x17a [<ffffffff814b7117>] __mutex_lock_slowpath+0x13/0x15 [<ffffffff814b6f76>] mutex_lock+0x23/0x37 [<ffffffff8125b890>] ? list_del+0x11/0x30 [<ffffffffa00edc84>] fcoe_vport_destroy+0x43/0x5f [fcoe] [<ffffffffa009130a>] fc_vport_terminate+0x48/0x110 [scsi_transport_fc] [<ffffffffa00913ef>] fc_vport_sched_delete+0x1d/0x79 [scsi_transport_fc] [<ffffffff8105a82a>] process_one_work+0x1a8/0x2a4 [<ffffffffa00913d2>] ? fc_vport_terminate+0x110/0x110 [scsi_transport_fc] [<ffffffff8105c396>] worker_thread+0x1db/0x268 [<ffffffff8105c1bb>] ? manage_workers.clone.16+0x1f6/0x1f6 [<ffffffff8105ffd6>] kthread+0x6f/0x77 [<ffffffff814c0304>] kernel_thread_helper+0x4/0x10 [<ffffffff8105ff67>] ? kthread_freezable_should_stop+0x4b/0x4b [<ffffffff814c0300>] ? gs_change+0x13/0x13 A prior attempt to fix this issue is posted here: http://lists.open-fcoe.org/pipermail/devel/2012-October/012318.html or http://article.gmane.org/gmane.linux.scsi.open-fcoe.devel/11924 Based on feedback and discussion with Neil Horman it seems that the above patch may have a case where the fcoe_vport_destroy() and fcoe_destroy_work() can race; hence that patch has been withdrawn with this patch that is trying to solve the same problem in a different way. In the current approach instead of removing the fcoe_config_mutex from the vport_delete callback function; I've chosen to delete all the NPIV ports first on a given root lport before continuing with the removal of the root lport. Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * fcoe: close race on link speed detection in fcoe codeNeil Horman2013-01-281-4/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When creating an fcoe interfce, we call fcoe_link_speed_update before we add the lports fcoe interface to the fc_hostlist. Since network device events like NETDEV_CHANGE are only processed if an fcoe interface is found with an underlying netdev that matches the netdev of the event. Since this processing in fcoe_device_notification is how link_speed changes get communicated to the libfc code (via fcoe_link_speed_update), we have a race condition - if a NETDEV_CHANGE event is sent after the call to fcoe_link_speed_update in fcoe_netdev_config, but before we add the interface to the fc_hostlist, we will loose the event and attributes like /sys/class/fc_host/hostX/speed will not get updated properly. Fix this by moving the add to the fc_hostlist above the serialized call to fcoe_netdev_config, ensuring that we catch netdev envents before we make a direct call to fcoe_link_speed_update. Also use this opportunity to clean up access to the fc_hostlist a bit by creating a fcoe_hostlist_del accessor and replacing the cleanup in fcoe_exit to use it properly. Tested by myself successfully [ Comment over 80 chars broken into multi-line by Robert Love to satisfy checkpatch.pl ] Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * debris left by "[SCSI] libfcoe: Remove mutex_trylock/restart_syscall checks"Al Viro2012-12-141-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AFAICS, the situation for fcoe_transport_disable() seems to be the same as for fcoe_transport_enable(). IOW, shouldn't it have restart_syscall() removed as well? I don't see any in-tree ->disable() instances that could return -ERESTARTSYS, anyway... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * bnx2fc: use fcoe_get_lesb/fcoe_ctlr_get_lesb() directly from libfcoeYi Zou2012-12-141-46/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Drop the bnx2fc_xxx versions as they are basically the same. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * bnx2fc: use fcoe_link_speed_update() from the exported symbol in libfcoeYi Zou2012-12-141-31/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have fcoe_link_speed_update() in libfcoe ready for use now, take out the bnx2fc version which is almost the same. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * bnx2fc: add support to get_netdev for bnx2f_interfaceYi Zou2012-12-141-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support to fcoe_port's newly added get_netdev fucntion pointer for bnx2fc. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * libfcoe, fcoe: consolidate the fcoe_ctlr_get_lesb/fcoe_get_lesbYi Zou2012-12-142-40/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similarly they can be moved into libfcoe instead of being private to fcoe now. Also add comments particularly on the term LESB to the corresponding function. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * libfcoe, fcoe: move fcoe_link_speed_update() to libfcoe and export itYi Zou2012-12-142-35/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the previous patch, fcoe_link_speed_update() can be moved into libfcoe and exported to used by fcoe, bnx2fc, and etc. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * fcoe: add support to the get_netdev() for fcoe_interfaceYi Zou2012-12-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support to fcoe_port's newly added get_netdev fucntion pointer. Signed-off-by: Yi Zou <yi.zou@intel.com> Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| | * libfc, libfcoe, fcoe: Convert debug_logging macros to pr_infoRobert Love2012-12-143-27/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert libfc, libfcoe and fcoe's debug_logging macros to use pr_info() instead of printk(KERN_INFO, ...). checkpatch.pl now complains about this, so convert libfcoe to preferred method. Signed-off-by: Robert Love <robert.w.love@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
| | * bnx2fc: Use the fcoe_sysfs control interfaceRobert Love2012-12-141-29/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the new fcoe_sysfs control interface to bnx2fc.ko. It keeps the deprecated interface in tact and therefore either the legacy or the new control interfaces can be used. A mixed mode is not supported. A user must either use the new interfaces or the old ones, but not both. The fcoe_ctlr's link state is now driven by both the netdev link state as well as the fcoe_ctlr_device's enabled attribute. The link must be up and the fcoe_ctlr_device must be enabled before the FCoE Controller starts discovery or login. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
| | * fcoe: Use the fcoe_sysfs control interfaceRobert Love2012-12-142-24/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the new fcoe_sysfs control interface to fcoe.ko. It keeps the deprecated interface in tact and therefore either the legacy or the new control interfaces can be used. A mixed mode is not supported. A user must either use the new interfaces or the old ones, but not both. The fcoe_ctlr's link state is now driven by both the netdev link state as well as the fcoe_ctlr_device's enabled attribute. The link must be up and the fcoe_ctlr_device must be enabled before the FCoE Controller starts discovery or login. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
| | * libfcoe, fcoe, bnx2fc: Add new fcoe control interfaceRobert Love2012-12-144-9/+234
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch does a few things. 1) Makes /sys/bus/fcoe/ctlr_{create,destroy} interfaces. These interfaces take an <ifname> and will either create an FCoE Controller or destroy an FCoE Controller depending on which file is written to. The new FCoE Controller will start in a DISABLED state and will not do discovery or login until it is ENABLED. This pause will allow us to configure the FCoE Controller before enabling it. 2) Makes the 'mode' attribute of a fcoe_ctlr_device writale. This allows the user to configure the mode in which the FCoE Controller will start in when it is ENABLED. Possible modes are 'Fabric', or 'VN2VN'. The default mode for a fcoe_ctlr{,_device} is 'Fabric'. Drivers must implement the set_fcoe_ctlr_mode routine to support this feature. libfcoe offers an exported routine to set a FCoE Controller's mode. The mode can only be changed when the FCoE Controller is DISABLED. This patch also removes the get_fcoe_ctlr_mode pointer in the fcoe_sysfs function template, the code in fcoe_ctlr.c to get the mode and the assignment of the fcoe_sysfs function pointer to the fcoe_ctlr.c implementation (in fcoe and bnx2fc). fcoe_sysfs can return that value for the mode without consulting the LLD. 3) Make a 'enabled' attribute of a fcoe_ctlr_device. On a read, fcoe_sysfs will return the attribute's value. On a write, fcoe_sysfs will call the LLD (if there is a callback) to notifiy that the enalbed state has changed. This patch maintains the old FCoE control interfaces as module parameters, but it adds comments pointing out that the old interfaces are deprecated. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
| | * libfcoe: Add fcoe_sysfs debug logging levelRobert Love2012-12-142-3/+15
| | | | | | | | | | | | | | | | | | | | | Add a macro to print fcoe_sysfs debug statements. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
| | * libfcoe: Save some memory and optimize name lookupsRobert Love2012-12-041-28/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of creating a structure with an enum and a pointer to a string, simply allocate an array of strings and use the enum values for the indicies. This means that we do not need to iterate through the list of entries when looking up a string name by its enum key. This will also help with a latter patch that will add more fcoe_sysfs attributes that will also use the fcoe_enum_name_search macro. One attribute will also do a reverse lookup which requires less code when the enum-to-string mappings are organized as this patch makes them to be. Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
| | * libfc: fix REC handlingVasu Dev2012-12-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently fc_fcp_timeout doesn't check FC_RP_FLAGS_REC_SUPPORTED flag first, this prevents REC request ever going out at all to the target having REC support. So this patches fixes the fc_fcp_timeout by checking FC_RP_FLAGS_REC_SUPPORTED flag first. The changed order won't cause any issue during clearing FC_RP_FLAGS_REC_SUPPORTED on failed IO with target not supporting FC_RP_FLAGS_REC_SUPPORTED, since retry on failed IO would succeed. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com>
| * | [SCSI] ufs: Separate PCI code into glue driverVinayak Holikatti2013-02-255-327/+440
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch separates PCI code from ufshcd.c and makes it as a core driver module and adds a new file ufshcd-pci.c as PCI glue driver. [jejb: strip __devinit and devexit_p()] Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Tested-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] ufs: Segregate PCI Specific CodeVinayak Holikatti2013-02-254-219/+267
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch segregates the PCI specific code in ufshcd.c to make it ready for splitting into core ufs driver and PCI glue driver. Also copyright header modification to remove extra warranty disclaim. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Tested-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] scsi: fix lpfc build when wmb() is defined as mb()Randy Dunlap2013-02-241-28/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On architectures where wmb() is defined as mb(), a build error happens since there is also a variable named 'mb' in lpfc_sli.c's lpfc_sli_issue_mbox_s3() function. Rename the variable to 'mbx' to prevent the build error. drivers/scsi/lpfc/lpfc_sli.c: error: called object 'mb' is not a function Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] storvsc: Handle dynamic resizing of the deviceK. Y. Srinivasan2013-02-241-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | Handle LUN size changes by re-scanning the device. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] storvsc: Restructure error handling code on command completionK. Y. Srinivasan2013-02-241-42/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for handling additional sense codes, restructure and cleanup the error handling code in the command completion code path. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] storvsc: avoid usage of WRITE_SAMEOlaf Hering2013-02-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set scsi_device->no_write_same because the host does not support it. Also blacklist WRITE_SAME to avoid (and log) accident usage. If the guest uses the ext4 filesystem, storvsc hangs while it prints these messages in an endless loop: ... [ 161.459523] hv_storvsc vmbus_0_1: cmd 0x41 scsi status 0x2 srb status 0x6 [ 161.462157] sd 2:0:0:0: [sda] [ 161.463135] Sense Key : No Sense [current] [ 161.464983] sd 2:0:0:0: [sda] [ 161.465899] Add. Sense: No additional sense information [ 161.468211] hv_storvsc vmbus_0_1: cmd 0x41 scsi status 0x2 srb status 0x6 [ 161.475766] sd 2:0:0:0: [sda] [ 161.476728] Sense Key : No Sense [current] [ 161.478284] sd 2:0:0:0: [sda] [ 161.479441] Add. Sense: No additional sense information ... This happens with a guest running on Windows Server 2012, but happens to work while running on Windows Server 2008. WRITE_SAME isnt really supported by both versions, so disable the command usage globally. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] aacraid: suppress two GCC warningsPaul Bolle2013-02-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Building src.o for a 32 bit system triggers two GCC warnings: drivers/scsi/aacraid/src.c: In function ‘aac_src_deliver_message’: drivers/scsi/aacraid/src.c:410:3: warning: right shift count >= width of type [enabled by default] drivers/scsi/aacraid/src.c:434:2: warning: right shift count >= width of type [enabled by default] These warnings are caused by a right shift of 32. Use upper_32_bits() to suppress them. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] hpsa: check for dma_mapping_error in hpsa_passthru ioctlsStephen M. Cameron2013-02-241-0/+16
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] hpsa: reorganize error handling in hpsa_passthru_ioctlStephen M. Cameron2013-02-241-12/+13
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] hpsa: check for dma_mapping_error in hpsa_map_sg_chain_blockStephen M. Cameron2013-02-241-2/+12
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] hpsa: Check for dma_mapping_error for all code paths using fill_cmdStephen M. Cameron2013-02-241-20/+39
| | | | | | | | | | | | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] hpsa: Check for dma_mapping_error in hpsa_map_oneShuah Khan2013-02-241-0/+5
| | | | | | | | | | | | | | | | | | Signed-off-by: Shuah Khan <shuah.khan@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] dc395x: uninitialized variable in device_alloc()Dan Carpenter2013-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bug was introduced back in bitkeeper days in 2003. We use "dcb->dev_mode" before it has been initialized. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Oliver Neukum <oliver@neukum.org> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] storvsc: Initialize the sglistK. Y. Srinivasan2013-02-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Properly initialize scatterlist before using it. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] mpt2sas: Add support for OEM specific controllerSreekanth Reddy2013-02-242-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | Defined SSDID & HW vendor brand strings. Added entries for SSDID within the function that prints the brand string. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] ipr: Fix oops while resetting an ipr adapterBrian King2013-02-242-10/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When resetting an ipr adapter, we use scsi_block_requests to block any new commands from scsi core, and then unblock after the reset. When hotplug removing an adapter, we shut it down and go through this same code, but we've seen issues with scsi_unblock_requests running after the adapter's memory has been freed. There is really no need to block/unblock when the adapter is being removed, so this patch skips the block/unblock and will immediately fail any commands that happen to make it to queuecommand while the adapter is being shutdown. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] fnic: Fnic Trace UtilityHiral Patel2013-02-227-11/+803
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fnic Trace utility is a tracing functionality built directly into fnic driver to trace events. The benefit that trace buffer brings to fnic driver is the ability to see what it happening inside the fnic driver. It also provides the capability to trace every IO event inside fnic driver to debug panics, hangs and potentially IO corruption issues. This feature makes it easy to find problems in fnic driver and it also helps in tracking down strange bugs in a more manageable way. Trace buffer is shared across all fnic instances for this implementation. Signed-off-by: Hiral Patel <hiralpat@cisco.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] fnic: New debug flags and debug log messagesHiral Patel2013-02-223-21/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | Added new fnic debug flags for identifying IO state at every stage of IO while debugging and also added more log messages for better debugging capability. Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Hiral Patel <hiralpat@cisco.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] fnic: fnic driver may hit BUG_ON on device resetHiral Patel2013-02-222-7/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The issue was observed when LUN Reset is issued through IOCTL or sg_reset utility. fnic driver issues LUN RESET to firmware. On successful completion of device reset, driver cleans up all the pending IOs that were issued prior to device reset. These pending IOs are expected to be in ABTS_PENDING state. This works fine, when the device reset operation resulted from midlayer, but not when device reset was triggered from IOCTL path as the pending IOs were not in ABTS_PENDING state. execution path hits panic if the pending IO is not in ABTS_PENDING state. Changes: The fix replaces BUG_ON check in fnic_clean_pending_aborts() with marking pending IOs as ABTS_PENDING if they were not in ABTS_PENDING state and skips if they were already in ABTS_PENDING state. An extra check is added to validate the abort status of the commands after a delay of 2 * E_D_TOV using a helper function. The helper function returns 1 if it finds any pending IO in ABTS_PENDING state, belong to the LUN on which device reset was issued else 0. With this, device reset operation returns success only if the helper funciton returns 0, otherwise it returns failure. Other changes: - Removed code in fnic_clean_pending_aborts() that returns failure if it finds io_req NULL, instead of returning failure added code to continue with next io - Added device reset flags for debugging in fnic_terminate_rport_io, fnic_rport_exch_reset, and fnic_clean_pending_aborts Signed-off-by: Narsimhulu Musini <nmusini@cisco.com> Signed-off-by: Hiral Patel <hiralpat@cisco.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] fnic: Fix SGEs limitHiral Patel2013-02-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Driver allows IOs with more SGEs than max SGEs supported by Palo. The current max SGEs supported by the fnic driver is 1024. The current register settings on Palo supports a max of 256 only. Palo would return any IO with more than 256 SGEs with an error indicating INVALID_SGLS. Fnic driver should limit the max supported SGLs in the driver to 256 to avoid this error. Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Hiral Patel <hiralpat@cisco.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] fnic: fixing issues in device and firmware reset codeHiral Patel2013-02-223-32/+397
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Handling overlapped firmware resets This fix serialize multiple firmware resets to avoid situation where fnic device fails to come up for link up event, when firmware resets are issued back to back. If there are overlapped firmware resets are issued, the firmware reset operation checks whether there is any firmware reset in progress, if so it polls for its completion in a loop with 100ms delay. 2. Handling device reset timeout fnic_device_reset code has been modified to handle Device reset timeout: - Issue terminate on device reset timeout. - Introduced flags field (one of the scratch fields in scsi_cmnd). With this, device reset request would have DEVICE_RESET flag set for other routines to determine the type of the request. Also modified fnic_terminate_rport_io, fnic_rport_exch_rset, completion routines to handle SCSI commands with DEVICE_RESET flag. 3. LUN/Device Reset hangs when issued through IOCTL using utilities like sg_reset. Each SCSI command is associated with a valid tag, fnic uses this tag to retrieve associated scsi command on completion. the LUN/Device Reset issued through IOCTL resulting into a SCSI command that is not associated with a valid tag. So fnic fails to retrieve associated scsi command on completion, which causes hang. This fix allocates tag, associates it with the scsi command and frees the tag, when the operation completed. 4. Preventing IOs during firmware reset. Current fnic implementation allows IO submissions during firmware reset. This fix synchronizes IO submissions and firmware reset operations. It ensures that IOs issued to fnic prior to reset will be issued to the firmware before firmware reset. Signed-off-by: Narsimhulu Musini <nmusini@cisco.com> Signed-off-by: Hiral Patel <hiralpat@cisco.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] pm80xx: fix for memory region freeSakthivel K2013-02-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | All memory regions are allocated based on variables total_len and alignment but free was based on element_size. Signed-off-by: Sakthivel K <DL.Team.PMC.SPC.Linux.open.source@pmcs.com> Signed-off-by: Anand Kumar S <DL.Team.PMC.SPC.Linux.open.source@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] megaraid_sas: Version and Changelog updateadam radford2013-02-222-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | This patch updates the megaraid_sas driver version and updates Documentation/scsi/ChangeLog.megaraid_sas. Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 08:04:32 +0100