There is currently a DMA mapping leak that can occur in the ibmvfc
driver if we fail to allocate a scatterlist. Fix this by unmapping
the scatterlist in the failure path. Additionally, only log an error
for a scatterlist allocation failure if the log level is greater
than the default, since this can occur when running Active Memory
Sharing and this is not considered an error.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Commit f78badb1ae ([SCSI] fc
transport: pre-emptively terminate i/o upon dev_loss_tmo timeout)
changed the callback semantics of dev_loss_tmo and
terminate_rport_io such that repeated calls could be made. This
could result in the the driver using stale (NULLed-out, in
dev_loss_tmo) data from the rport. Correct this by addint a
simple check to ensure a valid fcport is attached.
Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
When clearing the flash device's SR, the comment is incorrect...
clearing the SR is 2 steps:
1. the SR protect bit is 1, so the first write zero clears only
that bit,
2. the SR protect bit is now 0, so the next write zero clears the
remaining bits.
The sector erase debug print more correctly identifies that the erase failed.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The flash data was incorrectly being converted (cpu_to_le32())
when using the bulk-flash-write mailbox command (ISP25xx and
above).
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Pre-ISP81XX parts (including ISP24xx and ISP25xx) could contain a
firmware image within a segment of flash, driver would fallback
to loading this firmware if the request-firmware interface failed
(userspace .bin file). Moving forward, all ISP81XX parts will
ship with a suggested-to-be-used firmware image within flash
which all driver should first attempt to load. If the flash
firmware load fails, the driver will then fallback to loading
firmware via the request-firmware interface (ql8100_fw.bin).
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Original code would incorrectly bypass serialization if the DPC
thread were performing a big-hammer operation (ISP abort). This
short circuit, though rare, would subsequently stomp on a
secondary thread's mailbox command execution. Found during
ISP81XX testing.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Original code should work as well given qla24xx_reset_adapter()
is only called in extreme cases where the HBA is taken offline.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
qla4xxx does not check the I_T nexus values correctly
so it ends up creating one session to the target. If
a portal should disappear or they should be reported
in different order the driver will think it is already
logged in when it could now be speaking to a different
target portal or accessing it through a different
initiator port (iscsi initiator port is not tied to
hardware and is just the initiator name plus isid
so you could end up with multiple ports through one
host).
This patch has the driver check the iscsi scsi port
values when matching sessions (we do not check
the initiator name because that is static). It results
in a portal from each target portal group getting
logged into instead of just one per target. In the future
the firmware should hopefully send us notification of other
sessions that are created to other portals within the
same tpgt and the sessions should have different isids.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
I am not sure what happened. It looks like we have always leaked
the q->queue that is allocated from the kfifo_init call. nab finally
noticed that we were leaking and this patch fixes it by adding a
kfree call to iscsi_pool_free. kfifo_free is not used per kfifo_init's
instructions to use kfree.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
serial: Add 16850 uart type support to OF uart driver
hvc_console: Remove tty->low_latency
powerpc: Get the number of SLBs from "slb-size" property
powerpc: is_hugepage_only_range() must account for both 4kB and 64kB slices
powerpc/ps3: printing fixups for l64 to ll64 conversion drivers/video
powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/scsi
powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/ps3
powerpc/ps3: Printing fixups for l64 to ll64 conversion sound/ppc
powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/char
powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/block
powerpc/ps3: Printing fixups for l64 to ll64 conversion arch/powerpc
powerpc/ps3: ps3_repository_read_mm_info() takes u64 * arguments
powerpc/ps3: clear_bit()/set_bit() operate on unsigned longs
powerpc/ps3: The lv1_ routines have u64 parameters
powerpc/ps3: Use dma_addr_t down through the stack
powerpc/ps3: set_dabr() takes an unsigned long
powerpc: Cleanup from l64 to ll64 change drivers/scsi
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_fsl: Return non-zero on error in probe()
drivers/ata/pata_ali.c: s/isa_bridge/ali_isa_bridge/ to fix alpha build
libata: New driver for OCTEON SOC Compact Flash interface (v7).
libata: Add another column to the ata_timing table.
sata_via: Add VT8261 support
pata_atiixp: update port enabledness test handling
[libata] get-identity ioctl: Fix use of invalid memory pointer
for SAS drivers.
Caught by Ke Wei (and team?) at Marvell.
Also, move the ata_scsi_ioctl export to libata-scsi.c, as that seems to be the
general trend.
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
__scsi_device_lookup_by_target() will always return
the first sdev with a matching LUN, regardless of
the state. However, when this sdev is in SDEV_DEL
scsi_device_lookup_by_target() will ignore this
device and so any valid device on the list after
the deleted device will never be found.
So we have to modify __scsi_device_lookup_by_target()
to skip any device in SDEV_DEL.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
virt_to_page() call should not be used on kernel text and data
addresses. virt_to_page() is used by sg_init_one(). So change padbuf
to be allocated within iscsi_segment.
Signed-off-by: Karen Xie <kxie@chelsio.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
