Fixed no-context ABTS received on unsolicited receive queue failed with BA_RJT
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Removed use of NOP mailboxes for interrupt verification in pci_probe_one_s4
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This patch fixes the following sparse error:
CHECK drivers/scsi/ipr.c
spinlock.h:147:9: warning: context imbalance in 'ipr_reset_reload' - unexpected unlock
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The new generation IBM SAS Controllers will support MSI-X interrupts and
Distributed Completion Processing features. This patch add these support
in ipr device driver.
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The resource path as displayed by the ipr driver is the
location string identifying a location on the SAS fabric.
This patch adds the SCSI host number such that error logs
can be more easily correlated in multiple adapter configurations.
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>
If kzalloc() or csio_hw_check_fwconfig() fail we may leave the
csio_hw_flash_config() function without freeing allocated memory or
firmware. This should take care of the leaks.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Naresh Kumar Inna <naresh@chelsio.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Increase max_sectors from 512 to 1024 in order to support max IO size of 512KB.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Since the FW counters are 32-bit, accumulate the stats in the driver.
[jejb: fix checkpatch warning]
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
We used to map doorbell register after FW enable request is complete.
This causes a race condition when unsolicited event is received, and FW
sends a CQE for it. Since the doorbell is not mapped, driver does not
arm CQ, which means FW will not notify the driver for further CQ
completions. To resolve this, map the doorbell between offload and
enable, so that driver is ready to receive the unsolicited packets and
arm the CQ as soon as FW enable is performed.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Moved the 'waiting for upload/offload completion' logic to respective
functions as it is called in multiple places. Also this is done in
preperation for the next patch.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Software FCoE target always advertises RETRY bit even when there are no
tape LUNs behind the target. This causes the driver to enable FW support
for sequence level error recovery and perform REC/SRR. This patch
arrests the behavior by not enabling SLER feature for this target.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
If the NULL test is necessary, the initialization involving a dereference of
the tested value should be moved after the NULL test.
The sematic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@
- T i = E->fld;
+ T i;
... when != E
when != i
if (E == NULL) S
+ i = E->fld;
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
These calls are followed by calls to memcpy() on the same memory area, so they
can be safely removed.
Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This patch stops the driver to invoke kthread (which remove the dead ioc)
for some time while EEH recovery has started.
[thenzl: add a 'non_operational_loop' reset.]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The intention in bnx2i_send_fw_iscsi_init_msg was to zero out
only the lower 32bits, but instead the whole mask64 is zeroed.
This patch fixes it.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Modified fnic driver to let hardware insert the COS value. Set bit
in descriptor to 0 telling hardware to use its lif COS configurations
to insert the COS value in the frames.
Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
ioc->diag_trigger_mpi is an SL_WH_MPI_TRIGGERS_T struct.
There is a cut and paste error here and SL_WH_EVENT_TRIGGERS_T is used
instead of SL_WH_MPI_TRIGGERS_T. Since the SL_WH_EVENT_TRIGGERS_T is
smaller than SL_WH_MPI_TRIGGERS_T, it means we only clear part of the
buffer.
I've changed it to use sizeof(ioc->diag_trigger_mpi) which is a bit
simpler.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: "Sreekanth Reddy" <Sreekanth.reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This removes an open coded simple_open() function and
replaces file operations references to the function
with simple_open() instead.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Naresh Kumar Inna <naresh@chelsio.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
In qla4xxx_get_ep_fwdb(), dst_addr is of type struct sockaddr.
We are copying sizeof(struct sockaddr_in6) bytes to dst_addr
which is 12 bytes larger. This will cause memory corruption.
So we change dst_addr to struct sockaddr_storage which is
of 128 byte, large enough to hold sizeof(struct sockaddr_in6).
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Issue:
Reset operation fails if port is in Link Down state
Fix:
Do not wait till HBA comes online after reset command is invoked.
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Issue:
Mailbox command timed out after switching from polling mode to interrupt mode.
Events:-
1. Mailbox interrupts are disabled
2. FW generates AEN and at same time driver enables Mailbox Interrupt
3. Driver issues new mailbox to Firmware
In above case driver will not get AEN interrupts generated by FW in step #2 as
FW generated this AEN when interrupts are disabled. During the same time
driver enabled the mailbox interrupt, so driver will not poll for interrupt.
Driver will never process AENs generated in step #2 and issues new mailbox to
FW, but now FW is not able to post mailbox completion as AENs generated before
are not processed by driver.
Fix:
Enable Mailbox / AEN interrupts before initializing FW in case of ISP83XX.
This will make sure we process all Mailbox and AENs in interrupt mode.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The ROM address handling in gdth_init_pci() is useless and possibly
dangerous. This patch removes it.
"pci_resource_start(pdev, 8)" is not well-defined. PCI resources 0-5 are
standard PCI BARs and 6 is the expansion ROM. Resource 8 is either an
SR-IOV BAR (if CONFIG_PCI_IOV=y, resources 7-12 are SR-IOV BARs) or a
bridge window (resources 7-10).
The GDT device is neither an SR-IOV device nor a bridge, so in either case
resource 8 should be zero since struct pci_dev is allocated with kzalloc().
It is illegal for a driver to write an arbitrary address to the ROM BAR
because it has no way of knowing whether the ROM will conflict with another
device.
I think the only effect of the code being removed was to:
1) Enable the ROM at 0xFEFF0000 (possibly causing a conflict with
another device)
2) Delay one millisecond
3) Write zero to the ROM BAR, disabling it
I doubt the delay is needed, but I left it since it seems innocuous.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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>
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>
When the ODD is powered off, any action the user did to the ODD that
would generate a media event will trigger an ACPI interrupt, so the
poll for media event is no longer necessary. And the poll will also
cause a runtime status change, which will stop the ODD from staying in
powered off state, so the poll should better be stopped.
But since we don't have access to the gendisk structure in LLDs, here
comes the disk_events_disable_depth for scsi device. This field is a
hint set by LLDs to convey information to upper layer drivers. A value
of 0 means media poll is necessary for the device, while values above 0
means media poll is not needed and should better be skipped. So we can
increase its value when we are to power off the ODD in ATA layer and
decrease its value when the ODD is powered on, effectively silence the
media events poll.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
CC: Russell King <linux@arm.linux.org.uk>
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'ibmvscsic' module is now simply 'ibmvscsi'; fix the Kconfig
description.
Signed-off-by: Wade Cline <clinew@linux.vnet.ibm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull more infiniband changes from Roland Dreier:
"Second batch of InfiniBand/RDMA changes for 3.8:
- cxgb4 changes to fix lookup engine hash collisions
- mlx4 changes to make flow steering usable
- fix to IPoIB to avoid pinning dst reference for too long"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/cxgb4: Fix bug for active and passive LE hash collision path
RDMA/cxgb4: Fix LE hash collision bug for passive open connection
RDMA/cxgb4: Fix LE hash collision bug for active open connection
mlx4_core: Allow choosing flow steering mode
mlx4_core: Adjustments to Flow Steering activation logic for SR-IOV
mlx4_core: Fix error flow in the flow steering wrapper
mlx4_core: Add QPN enforcement for flow steering rules set by VFs
cxgb4: Add LE hash collision bug fix path in LLD driver
cxgb4: Add T4 filter support
IPoIB: Call skb_dst_drop() once skb is enqueued for sending
