- 19 Feb, 2012 10 commits
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James Smart authored
Note: this is a replacement patch for the issue pointed out in http://www.gossamer-threads.com/lists/linux/kernel/1477270Signed-off-by:
Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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James Smart authored
Locking fix and Memory leak Fixes - Fix Locking code raises IRQ twice (NA) - Fix mailbox and vpi memory leaks (126818) Signed-off-by:
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James Smart authored
FC Discovery state machine fixes. - Fix bug with driver returning the inactive ndlp (125743) - Fix discovery problem when in pt2pt by copying old ndlp state before state change (126887) - Fix ndlp nodelist not empty wait timeout during driver unloading (127052) Signed-off-by:
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James Smart authored
T10 Diff fixes and enhancements: - Add SLI4 Lancer support for T10 DIF / BlockGuard (121980) - Fix SLI4 BlockGuard behavior when protection data is generated by HBA (121980) - Enhance debugfs for injecting T10 DIF errors (123966, 132966) - Fix Incorrect usage of bghm for BlockGuard errors (127022) Signed-off-by:
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James Smart authored
SLI related fixes: - Fix REG_RPI fails on SLI4 HBA putting NPort into NPR state (126230) - Fix ELS FDISC failing with local reject / invalid RPI. (126350) - Fix reset port when reset is needed during fw_dump (125807) - Fix unbounded firmware revision string from port cause panic (126560) - Fix driver behavior when receiving an ADISC (126654) - Fix driver not returning when bad ndlp found in abts error event handling (126209) - Add more driver logs in area of SLI4 port error attention and reset recovery (126813, 124466) - Fix failure in handling large CQ/EQ identifiers in an IOV environment (126856) - Fix for driver using duplicate RPIs after lancer port reset (126723) - Clear vport->fc_myDID in lpfc_els_issue_fdisc to guarentee a zero SID (126779, 126897) - Fix for SLI4 Port delivery for BLS ABORT ACC (126289) Signed-off-by:
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James Smart authored
BSG and User interface fixes: - Fix driver processing an els command using 16Gb FC Adapter (126345) - Change SLI4 FC port internal loopback to inner internal (126409) - Fix bug with driver dump command type 4 using 16Gb FC Adapter (126406) - Create character device to take a reference on the driver (126082) Signed-off-by:
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Mark Salyzyn authored
IO_XFER_ERROR_BREAK and IO_XFER_OPEN_RETRY_TIMEOUT are deficient of the required actions as outlined in the programming manual for the pm8001. Due to the overlapping code requirements of these recovery responses, we found it necessary to bundle them together into one patch. When a break is received during the command phase (ssp_completion), this is a result of a timeout or interruption on the bus. Logic suggests that we should retry the command. When a break is received during the data-phase (ssp_event), the task must be aborted on the target or it will retain a data-phase lock turning the target reticent to all future media commands yet will successfully respond to TUR, INQUIRY and ABORT leading eventually to target failure through several abort-cycle loops. The open retry interval is exceedingly short resulting in occasional target drop-off during expander resets or when targets push-back during bad-block remapping. Increased effective timeout from 130ms to 1.5 seconds for each try so as to trigger after the administrative inquiry/tur timeout in the scsi subsystem to keep error-recovery harmonics to a minimum. When an open retry timeout event is received, the action required by the targets is to issue an abort for the outstanding command then logic suggests we retry the command as this state is usually an indication of a credit block or busy condition on the target. We hijacked the pm8001_handle_event work queue handler so that it will handle task as an argument instead of device for the workers in support of the deferred handling outlined above. Moderate to Heavy bad-path testing on a 2.6.32 vintage kernel, compile-testing on scsi-misc-2.6 kernel ... Signed-off-by:
Mark Salyzyn <mark_salyzyn@xyratex.com> Acked-by:
Jack Wang <jack_wang@usish.com> Signed-off-by:
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Mark Salyzyn authored
Jack noticed I dropped a patch fragment associated with a flags automatic variable in mpi_set_phys_g3_with_ssc (ooops) and that the pre-emptive locking that piggy-backed this patch was not in-fact necessary because of underlying atomic accesses to the hardware. Here is the updated patch fixing these two issues. The pm8001 driver is missing the FUNC_GET_EVENTS handler in the phy control function. Since the pm8001_bar4_shift function was not designed to be called at runtime, added locking surrounding the adjustment for all accesses. Signed-off-by:
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Mark Salyzyn authored
pm8001_phy_control PHY_FUNC_HARD_RESET locks up on second try via smp_phy_control because response HW_EVENT_PHY_START_STATUS fails to complete previous command. The PM8001F_RUN_TIME flag is not treated as a bit, but a state in all readers, yet once we are operational or in the run time state, the flags use a bit-set operation. Signed-off-by:
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Oliver Neukum authored
This implements basic power management for SCSI tapes. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Acked-by:
Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by:
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- 18 Feb, 2012 15 commits
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Alan Stern authored
This patch (as1520) fixes a bug in the SCSI layer's power management implementation. LUN scanning can be carried out asynchronously in do_scan_async(), and sd uses an asynchronous thread for the time-consuming parts of disk probing in sd_probe_async(). Currently nothing coordinates these async threads with system sleep transitions; they can and do attempt to continue scanning/probing SCSI devices even after the host adapter has been suspended. As one might expect, the outcome is not ideal. This is what the "prepare" stage of system suspend was created for. After the prepare callback has been called for a host, target, or device, drivers are not allowed to register any children underneath them. Currently the SCSI prepare callback is not implemented; this patch rectifies that omission. For SCSI hosts, the prepare routine calls scsi_complete_async_scans() to wait until async scanning is finished. It might be slightly more efficient to wait only until the host in question has been scanned, but there's currently no way to do that. Besides, during a sleep transition we will ultimately have to wait until all the host scanning has finished anyway. For SCSI devices, the prepare routine calls async_synchronize_full() to wait until sd probing is finished. The routine does nothing for SCSI targets, because asynchronous target scanning is done only as part of host scanning. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> CC: <stable@kernel.org> Signed-off-by:
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Huajun Li authored
In do_scan_async(), calling scsi_autopm_put_host(shost) may reference freed shost, and cause Posison overwitten warning. Yes, this case can happen, for example, an USB is disconnected just when do_scan_async() thread starts to run, then scsi_host_put() called in scsi_finish_async_scan() will lead to shost be freed(because the refcount of shost->shost_gendev decreases to 1 after USB disconnects), at this point, if references shost again, system will show following warning msg. To make scsi_autopm_put_host(shost) always reference a valid shost, put it just before scsi_host_put() in function scsi_finish_async_scan(). [ 299.281565] ============================================================================= [ 299.281634] BUG kmalloc-4096 (Tainted: G I ): Poison overwritten [ 299.281682] ----------------------------------------------------------------------------- [ 299.281684] [ 299.281752] INFO: 0xffff880056c305d0-0xffff880056c305d0. First byte 0x6a instead of 0x6b [ 299.281816] INFO: Allocated in scsi_host_alloc+0x4a/0x490 age=1688 cpu=1 pid=2004 [ 299.281870] __slab_alloc+0x617/0x6c1 [ 299.281901] __kmalloc+0x28c/0x2e0 [ 299.281931] scsi_host_alloc+0x4a/0x490 [ 299.281966] usb_stor_probe1+0x5b/0xc40 [usb_storage] [ 299.282010] storage_probe+0xa4/0xe0 [usb_storage] [ 299.282062] usb_probe_interface+0x172/0x330 [usbcore] [ 299.282105] driver_probe_device+0x257/0x3b0 [ 299.282138] __driver_attach+0x103/0x110 [ 299.282171] bus_for_each_dev+0x8e/0xe0 [ 299.282201] driver_attach+0x26/0x30 [ 299.282230] bus_add_driver+0x1c4/0x430 [ 299.282260] driver_register+0xb6/0x230 [ 299.282298] usb_register_driver+0xe5/0x270 [usbcore] [ 299.282337] 0xffffffffa04ab03d [ 299.282364] do_one_initcall+0x47/0x230 [ 299.282396] sys_init_module+0xa0f/0x1fe0 [ 299.282429] INFO: Freed in scsi_host_dev_release+0x18a/0x1d0 age=85 cpu=0 pid=2008 [ 299.282482] __slab_free+0x3c/0x2a1 [ 299.282510] kfree+0x296/0x310 [ 299.282536] scsi_host_dev_release+0x18a/0x1d0 [ 299.282574] device_release+0x74/0x100 [ 299.282606] kobject_release+0xc7/0x2a0 [ 299.282637] kobject_put+0x54/0xa0 [ 299.282668] put_device+0x27/0x40 [ 299.282694] scsi_host_put+0x1d/0x30 [ 299.282723] do_scan_async+0x1fc/0x2b0 [ 299.282753] kthread+0xdf/0xf0 [ 299.282782] kernel_thread_helper+0x4/0x10 [ 299.282817] INFO: Slab 0xffffea00015b0c00 objects=7 used=7 fp=0x (null) flags=0x100000000004080 [ 299.282882] INFO: Object 0xffff880056c30000 @offset=0 fp=0x (null) [ 299.282884] ... Signed-off-by:Huajun Li <huajun.li.lee@gmail.com> Cc: stable@kernel.org Acked-by:
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Chad Dupuis authored
Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Giridhar Malavali authored
Signed-off-by:
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Shyam Sundar authored
With IOs running and PegHalt testing the system reboots when memory reset is performed during device initialization. Signed-off-by:
Shyam Sundar <shyam.sundar@qlogic.com> Signed-off-by:
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Giridhar Malavali authored
[SCSI] qla2xxx: Complete mailbox command timedout to avoid initialization failures during next reset cycle. Complete the mailbox command timed out before initiating another abort cycle to recover so that mailbox commands issued during next reset cycle don't fail due to pending mailbox access timeout. Signed-off-by:
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Michael Christie authored
Remove the check for a NULL fcport so that the host reset will run unconditionally to unwedge any commands before the device is offlined and to prevent a quick runthrough of the SCSI error handling. Signed-off-by:
Michael Christie <mchristi@redhat.com> Signed-off-by:
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Andrew Vasquez authored
ISP2200 adapters only have 24 mailbox registers so read only that many. Reported-by:
Olatunji Ruwase <oor@cs.cmu.edu> Signed-off-by:
Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by:
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Andrew Vasquez authored
This can cause instability in mailbox command state machine handling. Signed-off-by:
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Andrew Vasquez authored
Not clearing the options flags in mbx1 could lead the firmware into interpreting old data in mbx1 through mbx8. This could lead to inadvertent DMA read/write operations to stale memory. Signed-off-by:
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Andrew Vasquez authored
Many locations within the driver would use an inconsistent set of checks to determine ISP-reset state. Consolidate the checks into this inline-helper. Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Arun Easi authored
Signed-off-by:
Arun Easi <arun.easi@qlogic.com> Signed-off-by:
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Dave Jiang authored
NULL orom ptr passed in for verification which caused page fault. We will set a default version when we don't have orom struct. Reported-by:
Dan Melnic <dan@seamicro.com> Signed-off-by:
Dave Jiang <dave.jiang@intel.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Kleber Sacilotto de Souza authored
In some scenarios, an EEH error can take a long time to be detected, since the driver issues an MMIO read only after a device reset command times out and we try to reset the adapter. This patch adds some code in ipr_cancel_op() to read a hardware register so we detect the error earlier in case the op is being aborted because of a timeout caused by a frozen adapter slot. Another problem in such scenarios is that in __ipr_eh_host_reset() we change the dump state flag from WAIT_FOR_DUMP to GET_DUMP, and the flag is later changed from GET_DUMP to READ_DUMP in ipr_reset_restore_cfg_space(). However, if when __ipr_eh_host_reset() is called by the SCSI error handling the function ipr_reset_restore_cfg_space() has already been called by the PCI EEH code, we end up with the flag in an inconsistent state. This patch also prevents this problem. Signed-off-by:
Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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- 13 Feb, 2012 1 commit
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Alexey Khoroshilov authored
If ioc->pci_error_recovery is set, goto out in mpt2sas_base_hard_reset_handler() leads to unlock unheld ioc->reset_in_progress_mutex. The patch fixes the issue by jumping afer mutex_unlock() call. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by:
"Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com> Signed-off-by:
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- 11 Feb, 2012 2 commits
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Says Jens: "Time to push off some of the pending items. I really wanted to wait until we had the regression nailed, but alas it's not quite there yet. But I'm very confident that it's "just" a missing expire on exit, so fix from Tejun should be fairly trivial. I'm headed out for a week on the slopes. - Killing the barrier part of mtip32xx. It doesn't really support barriers, and it doesn't need them (writes are fully ordered). - A few fixes from Dan Carpenter, preventing overflows of integer multiplication. - A fixup for loop, fixing a previous commit that didn't quite solve the partial read problem from Dave Young. - A bio integer overflow fix from Kent Overstreet. - Improvement/fix of the door "keep locked" part of the cdrom shared code from Paolo Benzini. - A few cfq fixes from Shaohua Li. - A fix for bsg sysfs warning when removing a file it did not create from Stanislaw Gruszka. - Two fixes for floppy from Vivek, preventing a crash. - A few block core fixes from Tejun. One killing the over-optimized ioc exit path, cleaning that up nicely. Two others fixing an oops on elevator switch, due to calling into the scheduler merge check code without holding the queue lock." * 'for-linus' of git://git.kernel.dk/linux-block: block: fix lockdep warning on io_context release put_io_context() relay: prevent integer overflow in relay_open() loop: zero fill bio instead of return -EIO for partial read bio: don't overflow in bio_get_nr_vecs() floppy: Fix a crash during rmmod floppy: Cleanup disk->queue before caling put_disk() if add_disk() was never called cdrom: move shared static to cdrom_device_info bsg: fix sysfs link remove warning block: don't call elevator callbacks for plug merges block: separate out blk_rq_merge_ok() and blk_try_merge() from elevator functions mtip32xx: removed the irrelevant argument of mtip_hw_submit_io() and the unused member of struct driver_data block: strip out locking optimization in put_io_context() cdrom: use copy_to_user() without the underscores block: fix ioc locking warning block: fix NULL icq_cache reference block,cfq: change code order -
Tejun Heo authored
11a3122f "block: strip out locking optimization in put_io_context()" removed ioc_lock depth lockdep annoation along with locking optimization; however, while recursing from put_io_context() is no longer possible, ioc_release_fn() may still end up putting the last reference of another ioc through elevator, which wlil grab ioc->lock triggering spurious (as the ioc is always different one) A-A deadlock warning. As this can only happen one time from ioc_release_fn(), using non-zero subclass from ioc_release_fn() is enough. Use subclass 1. Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
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- 10 Feb, 2012 12 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Quoth David: 1) GRO MAC header comparisons were ethernet specific, breaking other link types. This required a multi-faceted fix to cure the originally noted case (Infiniband), because IPoIB was lying about it's actual hard header length. Thanks to Eric Dumazet, Roland Dreier, and others. 2) Fix build failure when INET_UDP_DIAG is built in and ipv6 is modular. From Anisse Astier. 3) Off by ones and other bug fixes in netprio_cgroup from Neil Horman. 4) ipv4 TCP reset generation needs to respect any network interface binding from the socket, otherwise route lookups might give a different result than all the other segments received. From Shawn Lu. 5) Fix unintended regression in ipv4 proxy ARP responses, from Thomas Graf. 6) Fix SKB under-allocation bug in sh_eth, from Yoshihiro Shimoda. 7) Revert skge PCI mapping changes that are causing crashes for some folks, from Stephen Hemminger. 8) IPV4 route lookups fill in the wildcarded fields of the given flow lookup key passed in, which is fine most of the time as this is exactly what the caller's want. However there are a few cases that want to retain the original flow key values afterwards, so handle those cases properly. Fix from Julian Anastasov. 9) IGB/IXGBE VF lookup bug fixes from Greg Rose. 10) Properly null terminate filename passed to ethtool flash device method, from Ben Hutchings. 11) S3 resume fix in via-velocity from David Lv. 12) Fix double SKB free during xmit failure in CAIF, from Dmitry Tarnyagin. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits) net: Don't proxy arp respond if iif == rt->dst.dev if private VLAN is disabled ipv4: Fix wrong order of ip_rt_get_source() and update iph->daddr. netprio_cgroup: fix wrong memory access when NETPRIO_CGROUP=m netprio_cgroup: don't allocate prio table when a device is registered netprio_cgroup: fix an off-by-one bug bna: fix error handling of bnad_get_flash_partition_by_offset() isdn: type bug in isdn_net_header() net: Make qdisc_skb_cb upper size bound explicit. ixgbe: ethtool: stats user buffer overrun ixgbe: dcb: up2tc mapping lost on disable/enable CEE DCB state ixgbe: do not update real num queues when netdev is going away ixgbe: Fix broken dependency on MAX_SKB_FRAGS being related to page size ixgbe: Fix case of Tx Hang in PF with 32 VFs ixgbe: fix vf lookup igb: fix vf lookup e1000: add dropped DMA receive enable back in for WoL gro: more generic L2 header check IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addresses zd1211rw: firmware needs duration_id set to zero for non-pspoll frames net: enable TC35815 for MIPS again ... -
Thomas Graf authored
Commit 653241 (net: RFC3069, private VLAN proxy arp support) changed the behavior of arp proxy to send arp replies back out on the interface the request came in even if the private VLAN feature is disabled. Previously we checked rt->dst.dev != skb->dev for in scenarios, when proxy arp is enabled on for the netdevice and also when individual proxy neighbour entries have been added. This patch adds the check back for the pneigh_lookup() scenario. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Acked-by:
Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Li Wei authored
This patch fix a bug which introduced by commit ac8a4810 (ipv4: Save nexthop address of LSRR/SSRR option to IPCB.).In that patch, we saved the nexthop of SRR in ip_option->nexthop and update iph->daddr until we get to ip_forward_options(), but we need to update it before ip_rt_get_source(), otherwise we may get a wrong src. Signed-off-by:
Li Wei <lw@cn.fujitsu.com> Signed-off-by:
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Neil Horman authored
When the netprio_cgroup module is not loaded, net_prio_subsys_id is -1, and so sock_update_prioidx() accesses cgroup_subsys array with negative index subsys[-1]. Make the code resembles cls_cgroup code, which is bug free. Origionally-authored-by:
Li Zefan <lizf@cn.fujitsu.com> Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Neil Horman authored
So we delay the allocation till the priority is set through cgroup, and this makes skb_update_priority() faster when it's not set. This also eliminates an off-by-one bug similar with the one fixed in the previous patch. Origionally-authored-by:
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Neil Horman authored
# mount -t cgroup xxx /mnt # mkdir /mnt/tmp # cat /mnt/tmp/net_prio.ifpriomap lo 0 eth0 0 virbr0 0 # echo 'lo 999' > /mnt/tmp/net_prio.ifpriomap # cat /mnt/tmp/net_prio.ifpriomap lo 999 eth0 0 virbr0 4101267344 We got weired output, because we exceeded the boundary of the array. We may even crash the kernel.. Origionally-authored-by:
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: fixup interlaced bits clearing in PIPECONF on PCH_SPLIT (v2) drm/i915: no lvds quirk for AOpen MP45 drm/i915: Force explicit bpp selection for intel_dp_link_required drm/radeon: do not continue after error from r600_ib_test drivers/gpu/drm/drm_ioc32.c: initialize all fields drm/i915: fixup interlaced bits clearing in PIPECONF on PCH_SPLIT drm/i915:: Disable FBC on SandyBridge
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git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds authored
fix 1 mysterious divide error fix 3 NULL dereference bugs in writeback tracing, on SD card removal w/o umount * tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: fix dereferencing NULL bdi->dev on trace_writeback_queue lib: proportion: lower PROP_MAX_SHIFT to 32 on 64-bit kernel writeback: fix NULL bdi->dev in trace writeback_single_inode backing-dev: fix wakeup timer races with bdi_unregister()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix double start/stop in x86_pmu_start() perf evsel: Fix an issue where perf report fails to show the proper percentage perf tools: Fix prefix matching for kernel maps perf tools: Fix perf stack to non executable on x86_64 perf: Remove deprecated WARN_ON_ONCE()
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Couple of regressions, couple of zero-day bugs, a minor enhancement. Nothing really major. * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (f75375s) Let f75375_update_device treat pwmX as a measured value hwmon: (f75375s) Fix bit shifting in f75375_write16 hwmon: (f75375s) Fix reading of wrong register when initializing the F75387 hwmon: (f75375s) Fix automatic pwm mode setting for F75373 & F75375 hwmon: (w83627ehf) Remove duplicate code
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Dave Airlie authored
Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux into drm-fixes * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux: drm/i915: fixup interlaced bits clearing in PIPECONF on PCH_SPLIT (v2) drm/i915: no lvds quirk for AOpen MP45 drm/i915: Force explicit bpp selection for intel_dp_link_required drm/i915: fixup interlaced bits clearing in PIPECONF on PCH_SPLIT drm/i915:: Disable FBC on SandyBridge
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Dan Carpenter authored
"subbuf_size" and "n_subbufs" come from the user and they need to be capped to prevent an integer overflow. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@kernel.org Signed-off-by:
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