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Software should not touch this region of flash, as the firmware
will be the only writer and consumer of the region.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
it needs scatterlist.h - indirect chain of includes doesn't work on a
lot of targets.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Andrew Vaszquez said:
> There's a problem that is causing commands returned by the LLD with
> a DID_RESET status to be reissued with cleared cmd->sdb data which
> in our tests are manifesting in firmware detected overruns. Here's
> a snippet of a READ_10 scsi_cmnd upon completion by the storage
The problem is caused by:
commit b60af5b0adf0da24c673598c8d3fb4d4189a15ce
Author: Alan Stern <stern@rowland.harvard.edu>
Date: Mon Nov 3 15:56:47 2008 -0500
[SCSI] simplify scsi_io_completion()
Because scsi_release_buffers() is called before commands that go
through the ACTION_RETRY and ACTION_DELAYED_RETRY legs are requeued.
However, they're not re-prepared, so nothing ever reallocates the
buffer resources to them. Fix this by releasing the buffers only if
we're not going to go down these legs (but scsi_release_buffers() on
all legs including two in scsi_end_request(); this latter needs a
special version __scsi_release_buffers() because the final one can be
called after the request has been freed, so the bidi test in
scsi_release_buffers(), which touches the request has to be skipped).
Reported-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch makes part of the scsi probe (which is mostly device spin up and the
partition scan) asynchronous. Only the part that runs after getting the device
number allocated is asynchronous, ensuring that device numbering remains stable.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
When we reworked the transport for the rport lifetimes, in cases where the
rport was reused as a container for tgt id bindings, we inadvertantly
removed the callback to the driver indicating that dev_loss_tmo had fired.
This patch restores that functionality.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Fix misspelling of "firmware" in qla1280.c
It's spelled "firmware".
Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix misspelling of "firmware" in a100u2w.c
It's spelled "firmware".
Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix misspelling of "firmware" in megaraid.c
Fixed "firmware", "ownership" and grammar in the same comment.
Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix misspelling of "firmware" in ql4_mbx.c
It's spelled "firmware".
Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
At some point since 2.6.22, the aha152x_cs driver stopped working and
started erring on load with the following messages:
kernel: pcmcia: request for exclusive IRQ could not be fulfilled.
kernel: pcmcia: the driver needs updating to supported shared IRQ lines.
With the following change, the driver works with shared IRQs.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org> [2.6.28], [2.6.27], [2.6.26]
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
DIF does not work with 6-byte commands so we previously ignored those
commands when preparing a request. However, DIX does not need
RDPROTECT/WRPROTECT to be set and 6-byte commands are consequently
perfectly valid in host-only mode.
This patch fixes a problem where we would set the wrong DIX operation
when issuing commands to a legacy disk.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Switch tag arrays to u8 to prevent problems on platforms with signed
char.
Reported-by: Tim LaBerge <tim.laberge@Quantum.Com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Add application tag to the output displayed on error.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
patch
commit b60af5b0adf0da24c673598c8d3fb4d4189a15ce
Author: Alan Stern <stern@rowland.harvard.edu>
Date: Mon Nov 3 15:56:47 2008 -0500
[SCSI] simplify scsi_io_completion()
broke DIX error handling. Also, we are now using EILSEQ to indicate
integrity errors to the upper layers (as opposed to regular EIO
failures). This allows filesystems to inspect buffers and decide
whether to retry the I/O. Update scsi_io_completion() accordingly.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
A bug was introduced by
commit b60af5b0adf0da24c673598c8d3fb4d4189a15ce
Author: Alan Stern <stern@rowland.harvard.edu>
Date: Mon Nov 3 15:56:47 2008 -0500
[SCSI] simplify scsi_io_completion()
because the simplification uses scsi_queue_insert(). The problem with
this function is that it expects to be called from the completion path
while the command is still outstanding, so it decrements the device
and host busy counts to do the requeue. The problem is that
scsi_io_completion() is a path executed well after these counts have
*already* been decremented, leading to a double decrement if the
command goes down any error path leading to ACTION_DELAYED_RETRY.
The fix is to allow a private function __scsi_queue_insert() with a
flag to say whether the busy counters should be decremented. This is
made static to scsi_lib.c to discourage other use.
Reported-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
I increased the delay step by step until loading of mvsas
reliably detected the drive 200 times in sequence. A much better
approach would be to monitor the hardware for some flag which
indicates that port detection has finished, but I do not have any
hardware documentation.
Signed-off-by: Reinhard Nissl <rnissl@gmx.de>
Cc: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Make enlarge_buffer() retry allocation if the previously chosen page
order was too small. Really limit the page order to 6. Return error if
the maximum order is not large enough for the request.
Signed-off-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This integrates st_scsi_kern_execute and st_do_scsi. IOW, it removes
st_scsi_kern_execute. Then st has a single function, st_do_scsi, to
perform SCSI commands.
Signed-off-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
frp_sg_current in struct st_buffer is always zero. We don't need it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
orig_frp_segs in struct st_buffer is always zero. We don't need it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
- remove the from_initialization argument, which is always 1. We
always need to use GFP_ATOMIC.
- 'got' valuable is initialized to zero and doesn't change. We don't
need it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This removes the usage of struct scatterlist completely.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This removes struct st_buff_fragment and use reserved_pages array to
store fragment buffer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This removes unused buf_to_sg() that the non-dio path used.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch converts the dio path (mmap) to use st_scsi_execute. IOW,
it removes scsi_execute_async in the non dio path.
scsi_execute_async has gone! This also remove unused st_sleep_done.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch converts the non-dio path (fragment buffer path) to use
st_scsi_execute. IOW, it removes scsi_execute_async in the non-dio
path.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
st_scsi_execute is a helper function to perform SCSI commands
involving data transfer between user and kernel space (st_read and
st_write).
It's the future plan to combine this with st_scsi_kern_execute helper
function.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This adds struct rq_map_data and the array of pointers to store
fragment buffers to struct st_buffer.
This patch doesn't remove st_buf_fragment but the latter patch does.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch simiplifies the fragment buffer management a bit, all the
buffers in the fragment list become the same size. This is necessary
to use the block layer API (sg driver was modified in the same way)
since the block layer API takes the same size page frames instead of
scatter gatter.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The commit 818827669d85b84241696ffef2de485db46b0b5e (block: make
blk_rq_map_user take a NULL user-space buffer) extended
blk_rq_map_user to accept a NULL user-space buffer with a READ
command. It was necessary to convert sg to use the block layer mapping
API.
This patch extends blk_rq_map_user again for a WRITE command. It is
necessary to convert st and osst drivers to use the block layer
apping API.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This fixes bio_copy_user_iov to properly handle the partial mappings
with struct rq_map_data (which only sg uses for now but st and osst
will shortly). It adds the offset member to struct rq_map_data and
changes blk_rq_map_user to update it so that bio_copy_user_iov can add
an appropriate page frame via bio_add_pc_page().
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
In a previous patch to fix an issue with error recovery,
the behavior of the max_requests module paramater was also
changed. If, for some reason, max_requests is set to one by
the user, we will end up with a negative number for can_queue.
Fix this by making max_requests not include the two event structs
needed to do error recovery.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <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@diku.dk>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The remove() callback in platform drivers should return int in
accordance to the definition of the platform_driver structure.
However, the SGI-specific WD93 SCSI controller driver defines
the callback as a void function, which causes the following
compilation warning:
drivers/scsi/sgiwd93.c:314: warning: initialization from
incompatible pointer type
This patch fixes the warning by changing the return type of
the remove() callback to what the core driver code requires.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
If a link down event is received, outstanding commands may get
returned to the ibmvfc driver with a "transaction cancelled implicit"
response. This is currently translated to DID_ABORT, which does
not get retried by SCSI core, but rather passes the failure up
the stack. This can result in I/O errors at the filesystem level.
Fix up this response a well as a few other error responses.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch (as1191) adds a missing "default" case in
scsi_io_completion(), thereby fixing an "uninitialized variable"
error. It also adds a missing newline to a log entry.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Make sure the control flow in scsi_times_out makes sense.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
[jejb: limit ioctl to returning 20 characters to avoid overrun
on long device names and add a few more conversions]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
As planed, this removes ide-scsi.
The 2.6 kernel supports direct writing to ide CD drives, which
eliminates the need for ide-scsi. ide-scsi has been unmaintained and
marked as deprecated.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James.Bottomley@HansenPartnership.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (33 commits)
ide-cd: remove dead dsc_overlap setting
ide: push local_irq_{save,restore}() to do_identify()
ide: remove superfluous local_irq_{save,restore}() from ide_dump_status()
ide: move legacy ISA/VLB ports handling to ide-legacy.c (v2)
ide: move Power Management support to ide-pm.c
ide: use ATA_DMA_* defines in ide-dma-sff.c
ide: checkpatch.pl fixes for ide-lib.c
ide: remove inline tags from ide-probe.c
ide: remove redundant code from ide_end_drive_cmd()
ide: struct device - replace bus_id with dev_name(), dev_set_name()
ide: rework handling of serialized ports (v2)
cy82c693: remove superfluous ide_cy82c693 chipset type
trm290: add IDE_HFLAG_TRM290 host flag
ide: add ->max_sectors field to struct ide_port_info
rz1000: apply chipset quirks early (v2)
ide: always set nIEN on idle devices
ide: fix ->quirk_list checking in ide_do_request()
gayle: set IDE_HFLAG_SERIALIZE explictly
cmd64x: set IDE_HFLAG_SERIALIZE explictly for CMD646
ali14xx: doesn't use shared IRQs
...
fcoe selects libfc and requires SCSI and PCI (the SCSI requirement is
implicitly covered by an enclosing if). Fix them both up so they
cannot be configured in an invalid state: make LIBFC select
SCSI_FC_ATTRS and make FCOE depend on PCI and select LIBFC.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
cxgb3i requires the cxgb3 net driver, so it selects it. However,
cxgb3 has dependencies which the select cannot see. Fix this by
separating out the cxgb3 dependencies into a separate hidden config
option (CONFIG_CHELSIO_T3_DEPENDS) and make both cxgb3 and cxgb3i
depend on it.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This structure may not be defined if CONFIG_MODULE=n, so never deref
it. Change uses of module->name to module_name(module) and corrects
some dyslexic printks and docbook comments.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The cxgb3i was using skb->sp pointer for some internal book-keeping
which is not related to the secure path. Changed it to use skb->cb[]
instead.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
