Commit Graph

3757 Commits

Author SHA1 Message Date
Mike Christie
103962380e [SCSI] iscsi class: bump version
Update version.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:54 -06:00
Mike Christie
df93ffcd74 [SCSI] iscsi_tcp: fix setting of r2t
If we negotiate for X r2ts we have to use only X r2ts. We cannot
round up (we could send less though). It is ok to fail if it
is not something the driver can handle, so this patch just does
that.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:52 -06:00
vignesh babu
1183657217 [SCSI] libiscsi: use is_power_of_2
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)

Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:51 -06:00
Mike Christie
4545a88fc1 [SCSI] iscsi_tcp: hold lock during data rsp processing
iscsi_data_rsp needs to hold the sesison lock when it calls
iscsi_update_cmdsn.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:50 -06:00
Mike Christie
66bbe0ce11 [SCSI] iscsi_tcp: enable sg chaining
The previous patches converted iscsi_tcp to support sg chaining.
This patch sets the proper flags and sets sg_table size to
4096. This allows fs io to be capped at max_sectors, but passthrough
IO to be limited by some other part of the kernel.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:48 -06:00
Mike Christie
4cd49ea133 [SCSI] libiscsi, iscsi class: set tmf to a safe default and export in sysfs
Older tools will not be setting the tmf time outs since they
did not exists, so set them to a safe default.

And export abort and lu reset timeout values in sysfs.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:46 -06:00
Mike Christie
7a53dc52a5 [SCSI] iscsi_tcp: drop session when itt does not match any command
A target should never send us a itt that does not match a running
task. If it does we do not really know what is coming down after the header,
unless we evaluate the hdr and do some guessing sometimes. However,
even if we know what is coming we probably do not have buffers for it or we
cannot respond (if it is a r2t for example), so just drop the session.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:45 -06:00
Olaf Kirch
03766a1d4e [SCSI] iscsi_tcp: stop leaking r2t_info's when the incoming R2T is bad
iscsi_r2t_rsp checks the incoming R2T for sanity, and if it
thinks it's fishy, it will drop it silently. In this case, we
leaked an r2t_info object. If we do this often enough, we run
into a BUG_ON some time later.

Removed r2t wrappers and update patch by Mike Christie

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:43 -06:00
Olaf Kirch
a8ac6311cc [SCSI] iscsi: convert xmit path to iscsi chunks
Convert xmit to iscsi chunks.

from michaelc@cs.wisc.edu:

Bug fixes, more digest integration, sg chaining conversion and other
sg wrapper changes, coding style sync up, and removal of io fields,
like pdu_sent, that are not needed.

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:42 -06:00
Mike Christie
1040c99d9f [SCSI] libiscsi: Drop host lock in queuecommand
The driver does not need the host lock in queuecommand so drop it.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:41 -06:00
Mike Christie
c1635cb786 [SCSI] libiscsi: clear conn->ctask when task is completed early
If the current ctask is failed early, we legt the conn->ctask pointer
pointing to a invalid task. When the xmit thread would send data for
it, we would then oops.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:39 -06:00
Mike Christie
9000bcd649 [SCSI] libiscsi: Do not fail commands immediately during logout
If the target requests a logout, then we do not want
to fail commands to scsi-ml right away. This patch just
fails in pending commands for a requeue immediately, and then lets
iscsid handle running commands like normal recovery.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:38 -06:00
FUJITA Tomonori
bca1088a81 [SCSI] iscsi_tcp: update the website URL
Use open-iscsi.org instead of linux-iscsi.sf.net, which hasn't been
updated for ages.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:36 -06:00
Mike Christie
f6d5180c78 [SCSI] libiscsi: fix nop handling
During root boot and shutdown the target could send us nops.
At this time iscsid cannot be running, so the target will drop
the session and the boot or shutdown will hang.

To handle this and allow us to better control when to check the network
this patch moves the nop handling to the kernel.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:35 -06:00
Mike Christie
2697478903 [SCSI] libiscsi: fix shutdown
We were using the device delete sysfs file to remove each device
then logout. Now in 2.6.21 this will not work because
the sysfs delete file returns immediately and does not wait for
the device removal to complete. This causes a hang if a cache sync
is needed during shutdown. Before .21, that approach had other
problems, so this patch fixes the shutdown code so that we remove the target
and unbind the session before logging out and shut down the session

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:33 -06:00
Mike Christie
bc436b2787 [SCSI] libiscsi: grab eh_mutex during host reset
I thought we may not need the eh mutex during host reset, but that is wrong
with the new shutdown code. When start_session_recovery sets the state to
terminate then drops the session lock. The scsi eh thread could then grab the
session lock see that we are terminating and then return failed to scsi-ml.
scsi-ml's eh then owns the command and will do whatever it wants
with it. But then the iscsi eh thread could grab the session lock
and want to complete the scsi commands that we in the LLD, but
it no longer owns them and kaboom.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:31 -06:00
Mike Christie
d8bf541e65 [SCSI] iscsi class: Use our own workq instead of common system one.
There is just too much going on through the common workq and
something like a scsi device removal through sysfs affects
how long it will take to recover the transport, mark it as
failed, or shut it down gracefully.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:30 -06:00
Mike Christie
b3a7ea8d50 [SCSI] libiscsi: do not block session during logout
There is not need to block the session during logout. Since
we are going to fail the commands that were blocked just fail them
immediately instead.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:28 -06:00
Olaf Kirch
6320377fd9 [SCSI] libiscsi, iscsi_tcp: iscsi pool cleanup
iscsi_pool_init simplified

iscsi_pool_init currently has a lot of duplicate kfree() calls it does
when some allocation fails. This patch simplifies the code a little by
using iscsi_pool_free to tear down the pool in case of an error.

iscsi_pool_init also returns a copy of the item array to the caller.
Not all callers use this array, so we make it optional.

Instead of allocating a second array and return that, allocate just one
array, of twice the size.

Update users of iscsi_pool_{init,free}

This patch drops the (now useless) second argument to
iscsi_pool_free, and updates all callers.

It also removes the ctask->r2ts array, which was never
used anyway. Since the items argument to iscsi_pool_init
is now optional, we can pass NULL instead.

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:27 -06:00
Boaz Harrosh
38ad03de3f [SCSI] libiscsi,iser: patch for AHS support
- The default initialization of hdr_max is the minimum -
    sizeof(struct iscsi_cmd) - Once this patch goes into iser the default
    initialization at libiscsi can be removed.
  - This is not yet full support for AHSs at iser end. But it should be easy.
    Just allocate more space at iser_desc right after iscsi_hdr. Than
    at transmission time use ctask->hdr_len to retrieve the total
    size of all iscsi pdu headers. See previous patch at iscsi_tcp.[ch]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:25 -06:00
Boaz Harrosh
004d6530f8 [SCSI] iscsi_tcp, libiscsi: initial AHS Support
at libiscsi generic code
  - currently code assumes a storage space of pdu header is allocated
    at llds ctask and is pointed to by iscsi_cmd_task->hdr. Here I add
    a hdr_max field pertaining to that storage, and an hdr_len that
    accumulates the current use of the pdu-header.

  - Add an iscsi_next_hdr() inline which returns the next free space
    to write new Header at. Also iscsi_next_hdr() is used to retrieve
    the address at which to write the header-digest.

  - Add iscsi_add_hdr(length). What the user do is calls iscsi_next_hdr()
    for address of the new header, than calls iscsi_add_hdr(length) with
    the size of the new header. iscsi_add_hdr() will check if space is
    available and update to the new size. length must be padded according
    to standard.

  - Add 2 padding inline helpers thanks to Olaf. Current patch does not
    use them but Following patches will.
    Also moved definition of ISCSI_PAD_LEN to iscsi_proto.h which had
    PAD_WORD_LEN that was never used anywhere.

  - Let iscsi_prep_scsi_cmd_pdu() signal an Error return since now  it is
    possible that it will fail.

  - I was tired of yet again writing a "this is a digest" comment next to
    sizeof(__u32) so I defined a new ISCSI_DIGEST_SIZE. Now I don't need
    any comments. Changed all places that used sizeof(__u32) or "4" in
    connection to a digest.

  iscsi_tcp specific code
  - At struct iscsi_tcp_cmd_task allocate maximum space allowed in
    standard for all headers following the iscsi_cmd header. and mark
    it so in iscsi_tcp_session_create()
  - At iscsi_send_cmd_hdr() retrieve the correct headers size and
    write header digest at iscsi_next_hdr().

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:23 -06:00
Boaz Harrosh
7207fea452 [SCSI] iscsi: Prettify resid handling and some extra checks
- Check to see that OVERFLOW is not negative indicating
    a bug.
  - Unify handling of UNDERFLOW and OVERFLOW to the same
    code.
  - Also handle BIDI_OVERFLOW.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:22 -06:00
Olaf Kirch
da32dd681f [SCSI] iscsi_tcp: rewrite recv path
Rewrite recv path. Fixes:
- data digest processing and error handling.
- ahs support.

Some fixups by Mike Christie

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:20 -06:00
Mike Christie
843c0a8a76 [SCSI] libiscsi, iscsi_tcp: add device support
This patch adds logical unit reset support. This should work for ib_iser,
but I have not finished testing that driver so it is not hooked in yet.

This patch also temporarily reverts the iscsi_tcp r2t write out patch.
That code is completely rewritten in this patchset.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:19 -06:00
Tejun Heo
8ae732a91d [SCSI] make pcmcia directory use obj-y|m instead of subdir-y|m
subdir-y|m isn't supposed to contain modules or built-in components.
Change subdir-$(CONFIG_PCMCIA) to obj-$(CONFIG_PCMCIA).

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:17 -06:00
Denis Cheng
b7d68ca3f0 [SCSI] ipr: use LIST_HEAD instead of LIST_HEAD_INIT
Signed-off-by: Denis Cheng <crquan@gmail.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:15 -06:00
Jeff Garzik
230e886e7b [SCSI] gdth: kill unneeded 'irq' argument
Neither gdth_get_status() nor __gdth_interrupt() need their 'irq' argument,
so remove it.

[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:14 -06:00
Jeff Garzik
736f77deaf [SCSI] sym53c416: kill pointless irq handler loop and test
- kill pointless irq handler loop to find base address, it is already
  passed to irq handler via Scsi_Host.

- kill now-pointless !base test.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:12 -06:00
Jeff Garzik
baa9aac6a1 [SCSI] NCR5380: minor irq handler cleanups
* remove unnecessary cast

* remove unnecessary use of 'irq' function arg

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:11 -06:00
Andrew Morton
fc9b511882 [SCSI] sgiwd93: export sgiwd93_reset()
mips allmodconfig:

ERROR: "sgiwd93_reset" [drivers/scsi/wd33c93.ko] undefined!

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:09 -06:00
Salyzyn, Mark
94cf6ba11b [SCSI] aacraid: fix driver failure with Dell PowerEdge Expandable RAID Controller 3/Di
As reported in http://bugzilla.kernel.org/show_bug.cgi?id=3D9133 it was
discovered that the PERC line of controllers lacked a key 64 bit
ScatterGather capable SCSI pass-through function. The adapters are still
capable of 64 bit ScatterGather I/O commands, but these two can not be
mixed. This problem was exacerbated by the introduction of the SCSI
Generic access to the DASD physical devices.

The fix for users before this patch is applied is aacraid.dacmode=3D0 on
the kernel command line to disable 64 bit I/O.

The enclosed patch introduces a new adapter quirk and tries to limp
along by enabling pass-through in situations where memory is 32 bit
addressable on 64 bit machines, or disable the pass-through functions
altogether. I expect that the check for 32 bit addressable memory to be
controversial in that it can be incorrect in non-Dell non-Intel systems
that PERC would never be installed under, the alternative is to disable
pass-through in all cases which could be reported as another regression.

Pass-through is used for SCSI Generic access to the physical devices, or
for the management applications to properly function.

In systems where this patch has disabled pass-through because it is
unsupportable in combination with I/O performance, the user can choose
to enable pass-through by turning off dacmode (aacraid.dacmode=3D0) or
limiting the discovered kernel memory (mem=3D4G) with an associated loss
in runtime performance. If we chose instead to turn off 64 bit dacmode
for the adapters with this quirk, then this would be reported as another
regression.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:07 -06:00
HighPoint Linux Team
00f5970193 [SCSI] hptiop: add more adapter models and other fixes
Most code changes were made to support adapters based on Marvell IOP, plus some
other fixes.

- add more PCI device IDs
- support for adapters based on Marvell IOP
- fix a result code translation error on big-endian systems
- fix resource releasing bug when scsi_host_alloc() fail in hptiop_probe()
- update scsi_cmnd.resid when finishing a request
- correct some coding style issues

[akpm@linux-foundation.org: type fixes]
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:06 -06:00
Randy Dunlap
a7ed0448e2 [SCSI] aic94xx: fix section mismatches
Fix section mismatch warning:

WARNING: vmlinux.o(.init.text+0x23be6): Section mismatch: reference to .exit.text:asd_unmap_ha (between 'asd_pci_probe' and 'qla4xxx_module_init')
+
WARNING: vmlinux.o(.text+0x1ec8a8): Section mismatch: reference to .exit.text:as
d_unmap_ioport (between 'asd_unmap_ha' and 'asd_remove_dev_attrs')
WARNING: vmlinux.o(.text+0x1ec8b1): Section mismatch: reference to .exit.text:as
d_unmap_memio (between 'asd_unmap_ha' and 'asd_remove_dev_attrs')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:04 -06:00
Jeff Garzik
2551a13e61 [SCSI] ips: handle scsi_add_host() failure, and other err cleanups
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:02 -06:00
Jeff Garzik
21e1a5f26c [SCSI] ips: PCI API cleanups
* pass Scsi_Host to ips_remove_device() via pci_set_drvdata(),
  allowing us to eliminate the ips_ha[] search loop and call
  ips_release() directly.

* call pci_{request,release}_regions() and eliminate individual
  request/release_[mem_]region() calls

* call pci_disable_device(), paired with pci_enable_device()

* s/0/NULL/ in a few places

* check ioremap() return value

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:28:01 -06:00
Jeff Garzik
2f277d6a71 [SCSI] ips: trim trailing whitespace
[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:27:59 -06:00
Jeff Garzik
8a694cc87a [SCSI] ips: remove ips_ha members that duplicate struct pci_dev members
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:27:57 -06:00
Randy Dunlap
864473bbbb [SCSI] sym2: fix section mismatch warning
Fix section mismatch warning:

WARNING: vmlinux.o(.text+0x1ff3a2): Section mismatch: reference to .exit.text:sym2_remove (between 'sym2_io_error_detected' and 'sym_xpt_done')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:27:56 -06:00
Adrian Bunk
a6ababd26a [SCSI] lpfc: minor cleanups
This patch contains the following minor cleanups:
- make the following needlessly global functions static:
  - lpfc_els.c: lpfc_register_new_vport()
  - lpfc_els.c: lpfc_issue_els_fdisc()
  - lpfc_els.c: lpfc_issue_fabric_iocb()
  - lpfc_els.c: lpfc_fabric_abort_vport()
  - lpfc_hbadisc.c: lpfc_dev_loss_tmo_handler()
  - lpfc_hbadisc.c: lpfc_mbx_cmpl_clear_la()
  - lpfc_hbadisc.c: lpfc_disc_flush_list()
  - lpfc_hbadisc.c: __lpfc_find_node()
  - lpfc_init.c: lpfc_hb_timeout()
  - lpfc_init.c: lpfc_block_mgmt_io()
  - lpfc_sli.c: __lpfc_sli_release_iocbq()
  - lpfc_sli.c: lpfc_sli_next_hbq_slot()
  - lpfc_sli.c: lpfc_sli_hbqbuf_init_hbqs()
  - lpfc_sli.c: lpfc_sli_hbqbuf_find()
  - lpfc_sli.c: __lpfc_sli_issue_iocb()
- #if 0 the following unused global functions:
  - lpfc_els.c: lpfc_fabric_abort_flogi()
  - lpfc_hbadisc.c: lpfc_find_node()
  - lpfc_hbadisc.c: lpfc_findnode_rpi()
- remove the unused exports

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:50 -06:00
James Bottomley
001aac257c [SCSI] sd,sr: add early detection of medium not present
The current scsi_test_unit_ready() is updated to return sense code
information (in struct scsi_sense_hdr).  The sd and sr drivers are
changed to interpret the sense code return asc 0x3a as no media and
adjust the device status accordingly.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:50 -06:00
Rusty Russell
4a03d90e35 [SCSI] BUG_ON() impossible condition in sg list counting
If blk_rq_map_sg wrote more than was allocated in the scatterlist,
BUG_ON() is probably the right thing to do.

[jejb: rejections fixed up]

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:50 -06:00
Randy Dunlap
a8aae4d342 [SCSI] tgt: fix build when dprintk is defined
Fix scsi_tgt_lib build when dprintk is defined:
Also fix accessors problem when dprintk is defined

drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_cmd_destroy':
drivers/scsi/scsi_tgt_lib.c:183: warning: format '%lu' expects type 'long unsigned int', but argument 6 has type 'unsigned int'
drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_cmd_done':
drivers/scsi/scsi_tgt_lib.c:330: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'unsigned int'
drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_transfer_response':
drivers/scsi/scsi_tgt_lib.c:345: warning: format '%lu' expects type 'long unsigned int', but argument 5 has type 'unsigned int'
drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_init_cmd':
drivers/scsi/scsi_tgt_lib.c:368: warning: format '%lu' expects type 'long unsigned int', but argument 6 has type 'unsigned int'
drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_kspace_exec':
drivers/scsi/scsi_tgt_lib.c:499: warning: format '%lu' expects type 'long unsigned int', but argument 9 has type 'unsigned int'
drivers/scsi/scsi_tgt_lib.c: In function 'scsi_tgt_kspace_it_nexus_rsp':
drivers/scsi/scsi_tgt_lib.c:620: error: 'mid' undeclared (first use in this function)
drivers/scsi/scsi_tgt_lib.c:620: error: (Each undeclared identifier is reported only once
drivers/scsi/scsi_tgt_lib.c:620: error: for each function it appears in.)
make[2]: *** [drivers/scsi/scsi_tgt_lib.o] Error 1

[tomo:
> -     dprintk("%d %d %llx\n", host_no, result, (unsigned long long) mid);
> +     dprintk("%d %d\n", host_no, result);

'mid' is a typo. I wanted to do:

        dprintk("%d %d %llx\n", host_no, result, (unsigned long long)itn_id);

The rest looks ok. Thanks,
]

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:49 -06:00
Christoph Hellwig
f3307f7276 [SCSI] aacraid: don't assign cpu_to_le32(int) to u8
On Wed, Nov 07, 2007 at 01:51:44PM -0500, Salyzyn, Mark wrote:
> Christoph Hellwig [mailto:hch@infradead.org] sez:
> > Did anyone run the driver through sparse to see if we have
> > more issues like this?
>
> There are some warnings from sparse, none like this one. I will deal
> with the warnings ...

Actually there are a lot of endianess warnings, fortunately most of them
harmless.  The patch below fixes all of them up (including the ones in
the patch I replied to), except for aac_init_adapter which is really odd
and I don't know what to do.

[jejb fixed up rejections and checkpatch issues]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mark Salyzyn <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:46 -06:00
Andrew Vasquez
3fb8931645 [SCSI] qla2xxx: Update version number to 8.02.00-k6.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:46 -06:00
Shyam Sundar
f4a8dbc7f6 [SCSI] qla2xxx: Properly handle Vport state-change-notifications.
Drivers do SCRs for each Vport. When something changes in the
fabric, firmware generates one interrupt for each RSCN. Based on
the current implementation, in each case, we make recursive calls
to handle RSCN for physical and each subsequent virtual ports.
The fix is to also take into consideration the vp_idx, which is
set by the firmware to indicate the vport the RSCN was meant for.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:45 -06:00
Andrew Vasquez
eb66dc60be [SCSI] qla2xxx: Correct NPIV support for recent ISPs.
Firmware will export to software the maximum number of vports
supported for any given firmware version and ISP type.  Use this
information rather than the current hardcoding of limitations
within the driver.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:45 -06:00
Andrew Vasquez
06e23b7470 [SCSI] qla2xxx: Don't explicitly read mbx registers while processing a system-error.
Callers of qla2x00_async_event() already populate the mb[] array
upon invocation, doing so via the appropriate mailbox register
accessors.  The stale codes removed are leftover-bits kept during
the FWI2 transition.  Though relatively benign, the extra-reads
are not valid for FWI2 boards (ISP24xx and above) and peek into
the incorrect regions of registers.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:45 -06:00
Robert Jennings
860784c8a2 [SCSI] ibmvscsi: requeue while CRQ closed
CRQ send errors that return with H_CLOSED should return with
SCSI_MLQUEUE_HOST_BUSY until firmware alerts the client of a CRQ
transport event.  The transport event will either reinitialize and
requeue the requests or fail and return IO with DID_ERROR.

To avoid failing the eh_* functions while re-attaching to the server
adapter this will retry for a period of time while ibmvscsi_send_srp_event
returns SCSI_MLQUEUE_HOST_BUSY.

In ibmvscsi_eh_abort_handler() the loop includes the search of the
event list.  The lock on the hostdata is dropped while waiting to try
again after failing ibmvscsi_send_srp_event.  The event could have been
purged if a login was in progress when the function was called.

In ibmvscsi_eh_device_reset_handler() the loop includes the call to
get_event_struct() because a failing call to ibmvscsi_send_srp_event()
will have freed the event struct.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:45 -06:00
Randy Dunlap
dc8875e107 [SCSI] docbook and kernel-doc updates
- Change title to remove "Mid-Layer" since the doc is about all of the
SCSI layers.
- Use "SCSI" instead of "scsi" in docbook text.
- Use "*/" to end kernel-doc notation blocks.
- A few other minor typo fixes.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:45 -06:00
Randy Dunlap
c93ff979a4 [SCSI] kernel-doc: use correct function name
Use correct function name in kernel-doc.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:44 -06:00
Tony Battersby
25d7c363f2 [SCSI] move single_lun flag from scsi_device to scsi_target
Some SCSI tape medium changers that need the BLIST_SINGLELUN flag have
the medium changer at one LUN and the tape drive at a different LUN.
The inquiry string of the tape drive may be different from that of the
medium changer.  In order for single_lun to be effective, every
scsi_device under a given scsi_target must have it set.  This means that
there needs to be a blacklist entry for BOTH the medium changer AND the
tape drive, which is impractical because some medium changers may be
paired with a variety of different tape drive models.  It makes more
sense to put the single_lun flag in scsi_target instead of scsi_device,
which causes every device at a given target ID to inherit the single_lun
flag from one LUN.  This makes it possible to blacklist just the medium
changer and not the tape drive.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:44 -06:00
bo yang
f28cd7cf8f [SCSI] megaraid_sas: Update version and changelog
Update version and changelog

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:44 -06:00
bo yang
ad84db2e2e [SCSI] megaraid_sas: support for poll_mode_io (reduced interrupt)
Added module parameter "poll_mode_io" to support for "polling"
(reduced interrupt operation).  In this mode, IO completion interrupts
are delayed. At the end of initiating IOs, the driver schedules for
cmd completion if there are pending cmds.  A timer-based interrupt has
also been added to prevent IO completion from being delayed
indefinitely in the case that no new IOs are initiated.  Some
formatting issues in resume, suspend comment block also corrected

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:44 -06:00
bo yang
7343eb6570 [SCSI] megaraid_sas: call cmd completion from reset
Driver will call cmd completion routine from Reset path without waiting for cmd completion from isr context.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:43 -06:00
bo yang
b10c36a575 [SCSI] megaraid_sas: use unsigned long for sense_buff ptr
MegaRAID utilities expect sense_buff to be of type unsigned long.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:43 -06:00
bo yang
14faea9f7f [SCSI] megaraid_sas: check max_sgl reported by FW for setting max_sectors_per_req
1. Setting the max_sectors_per_req based on max SGL supported by the
   FW. Prior versions calculated this value from controller info's
   max_sectors_1, max_sectors_2. For certain controllers/FW, this was
   resulting in a value greater than max SGL supported by the FW. Now
   we take the min of max sgl from FW and max_sectors calculation.

2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
   a max of 60 seconds to respond to the INIT cmd.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:43 -06:00
bo yang
31ea708897 [SCSI] megaraid_sas: add hibernation support
Adding hibernation support. suspend, resume routine implemented.

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:43 -06:00
Tony Battersby
1e6c38cec0 [SCSI] 3w-9xxx: fix abysmal write performance on some motherboards
The 3ware 9500S-8 SATA RAID controller exhibits terrible write
performance when PCI memory-write-and-invalidate is disabled.  This is
easy to demonstrate by replacing pci_try_set_mwi() in the patch below
with pci_clear_mwi().  My benchmarks show the following:

MWI disabled: 15 MB/s write, 330 MB/s read
MWI enabled:  240 MB/s write, 330 MB/s read

Most motherboards will enable MWI without the driver having to set it
explicitly, so most people probably wouldn't encounter this problem.
For the few motherboards that don't enable it, this patch could give a
16x performance improvement for writing.

This issue does not seem to affect the 9550SX controller, but the patch
doesn't hurt it either.  I haven't tested any of the other 3ware
controllers.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: adam radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:42 -06:00
Darrick J. Wong
8ee24023ef [SCSI] libsas: Fix various sparse complaints
Annotate sas_queuecommand with locking details, and clean up a few
more sparse warnings about static/non-static declarations.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:41 -06:00
Darrick J. Wong
5929faf333 [SCSI] libsas: Convert sas_proto users to sas_protocol
sparse complains about the mixing of enums in libsas.  Since the
underlying numeric values of both enums are the same, combine them
to get rid of the warning.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:41 -06:00
Matthias Kaehlcke
e5a69e27cc [SCSI] megaraid_sas: Convert aen_mutex to the mutex API
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Acked-by: Bo Yang <Bo.Yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:41 -06:00
Boaz Harrosh
3ce7c65886 [SCSI] imm: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
 - Not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:41 -06:00
Boaz Harrosh
57643c711c [SCSI] ppa: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:41 -06:00
Rob Landley
eb44820c28 [SCSI] Add Documentation and integrate into docbook build
Add Documentation/DocBook/scsi_midlayer.tmpl, add to Makefile, and update
lots of kerneldoc comments in drivers/scsi/*.

Updated with comments from Stefan Richter, Stephen M. Cameron,
 James Bottomley and Randy Dunlap.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:40 -06:00
Salyzyn, Mark
f858317d89 [SCSI] aacraid: forced reset override
Some of our vendors have requested that our adapters ignore the hardware
reset attempts during recovery and have enforced this with changes in
Adapter Firmware. Some of our customers have requested the option to be
able to reset the adapter under adverse adapter failure, we even had a
few defects reported here considering it a regression that the Adapter
could not be reset. This patch addresses this dichotomy. The user can
force the adapter to be reset if it supports the IOP_RESET_ALWAYS
command, in cases where the adapter has been programmed to ignore the
reset, by setting the aacraid.check_reset parameter to a value of -1.

The driver will not reset an Adapter that does not support the reset
command(s).

This patch also fixes and cleans up some of the logic associated with
resetting the adapter.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh
9e0fe44ddb [SCSI] NCR5380 family: convert to accessors & !use_sg cleanup
- This patch depends on:
      NCR5380: Use scsi_eh API for REQUEST_SENSE invocation
  - convert to accessors and !use_sg cleanup
  - FIXME: Not sg-chain ready look for ++cmd->SCp.buffer

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh
9a3dd65baf [SCSI] wd7000: proper fix for boards without sg support
- code used to set sg_tablesize to zero for board revision
    less than 6. This is no longer supported, therefore I
    use sg_tablesize=1 and open code the sg handling for that case.
  - Get rid of use of SG_NONE which will be removed soon.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:39 -06:00
Boaz Harrosh
fe7ed98fd4 [SCSI] atp870u: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
 - Probably not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Cc: jameshsu <jameshsu@acard.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh
c73961e563 [SCSI] scsi_debug: convert to use the data buffer accessors
- remove the unnecessary map_single path.
  - convert to use the new accessors for the sg lists and the
    parameters.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:38 -06:00
Boaz Harrosh
caa1e8c321 [SCSI] seagate: Remove driver
- Apparently no one wonts this driver, and no one
    is willing to fix it for future changes to SCSI.
    So remove it, and if someone wants it in the future
    He can revive it with the needed fixes.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh
864a4675b2 [SCSI] psi240i: remove driver
The psi240i driver is still written for cmnd->request_buffer
as a char pointer to actual data. There was never any attempt
to use the scatterlist option.

  - remove all source files (3) from drivers/scsi
  - Remove from Makefile and Kconfig

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh
53d2a88503 [SCSI] in2000: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh
dfb104ff5d [SCSI] qlogicpti: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:36 -06:00
Boaz Harrosh
ee0ae92793 [SCSI] wd33c93: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh
8e31f1f4d9 [SCSI] fd_mcs: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
 - Not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh
fc3fdfcc8b [SCSI] aha1542: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh
cc0455fac0 [SCSI] a3000: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh
f2c1afa5eb [SCSI] a2091: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:35 -06:00
Boaz Harrosh
7410d849a4 [SCSI] eata_pio: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Boaz Harrosh
040cd23242 [SCSI] nsp_cs: convert to data accessors and !use_sg cleanup
- use scsi data accessors
  - cleanup !use_sg code paths
  - TODO: use next_sg() for Jens's sglist branch. Look for 2
    places with "SCp.buffer++"

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Boaz Harrosh
73d2cb165a [SCSI] aha152x: Use scsi_eh API for REQUEST_SENSE invocation
- Use new scsi_eh_prep/restor_cmnd() for synchronous
    REQUEST_SENSE invocation.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Mike Christie
75a9a4e147 [SCSI] add DID_REQUEUE string to scsi_show_result host table
I was working on patches which add new transport error values, when I
noticed that DID_REQUEUE was not in the hostbyte_table. I do not think
there is any way to hit the code path where scsi_show_result is called
and where you return DID_REQUEUE, because DID_REQUEUE causes scsi-ml to
always requeue the command. However, for completeness and because I want
to one day send a patch that tries to add new host bytes values, I am
sending this patch.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
James Smart
062af9c300 [SCSI] lpfc 8.2.3 : Change version number to 8.2.3
Change version number to 8.2.3

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
James Smart
7af670510d [SCSI] lpfc 8.2.3 : Temperature handling fix
Temperature handling fix - return proper error code indicator for applications

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart
76bb24efdc [SCSI] lpfc 8.2.3 : Internal loopback fixes
Internal loopback fixes:
- Use HBQs rather than Q_RING_BUFF
- Correct HBQs continuation entries
- Update CT handler to SLI3 iocbs

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart
a8adb83208 [SCSI] lpfc 8.2.3 : Miscellaneous Small Fixes - part 2
Miscellaneous Small Fixes - part 2

- Fix ndlp left in PLOGI state after link up
- Fix cannot rcv unsol ELS frames after running HBA resets for a few minutes
- Fix HBQ buffer_count implemention
- Fix RPI leak
- Fix crash while deleting vports while HBA is reset
- Revert the FCP Fbits offset back to 7
- Fix panic when deleting vports
- Remove unused code in switch statement outside of a case
- Reject PLOGI from invalid PName or NName of 0
- Ignore PLOGI responses from WWPName or WWNName of 0
- Fix debugfs hbqinfo display for ppc
- Added 8G to list of supported speeds for sysfs parameter
- Defer ndlp cleanup to dev-loss timeout handler
- Added support for WRITE_VPARMS mailbox command by applications

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart
87af33fe5f [SCSI] lpfc 8.2.3 : FC Discovery Fixes
FC Discovery Fixes:
- Fix up lpfc_drop_node() vs lpfc_nlp_not_used() usage
- Clear ADISC flag when unregistering RPI and REMOVE ndlps if in recovery.
- Fix usage of UNUSED list and ndlps
- Fix PLOGI race conditions
- Reset link if NameServer PLOGI errors occur
- Synchronize GID_FT queries with PLOGI receptions

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart
98c9ea5c02 [SCSI] lpfc 8.2.3 : Miscellaneous Small Fixes - part 1
Miscellaneous Small Fixes - part 1
- Fix typo kmzlloc -> kzalloc
- Fix discovery ndlp use after free panic
- Fix link event causing flood of 0108 messages
- Relieve some mbox congestion on link up with 100 vports
- Fix broken vport parameters
- Prevent lock recursion in logo_reglogin_issue
- Split uses of error variable in lpfc_pci_probe_one into retval and error
- Remove completion code related to dev_loss_tmo
- Remove unused LPFC_MAX_HBQ #define
- Don't compare pointers to 0 for sparse
- Make 2 functions static for sparse
- Fix default rpi cleanup code causing rogue ndlps to remain on the NPR list
- Remove annoying ELS messages when driver is unloaded
- Fix Cannot issue Register Fabric login problems on link up
- Remove LPFC_EVT_DEV_LOSS_DELAY
- Fix FC port swap test leads to device going offline
- Fix vport CT flags to only be set when accepted
- Add code to handle signals during vport_create
- Fix too many retries in FC-AL mode
- Pull lpfc_port_link_failure out of lpfc_linkdown_port

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:33 -06:00
James Smart
0b727fea7a [SCSI] lpfc 8.2.3 : Remove flawed MBX_STOP_IOCB logic
Remove flawed MBX_STOP_IOCB logic

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:32 -06:00
James Smart
7ee5d43e2e [SCSI] lpfc 8.2.3 : NPIV bug fixes
NPIV bug fixes:
- Remove vport params on physical hba when npiv is disabled
- Implement new DA_ID CT command to remove vport information from
  the switch after delete. Some switches didn't clean this up unless
  the physical link dropped.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
James Smart
57127f1572 [SCSI] lpfc 8.2.3 : Added support for ASICs that report temperature
Added support for ASICs that report temperature. Temperature notices are
 reported as events and logged. Temperature can be read via sysfs.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
Brian King
d1a357fcc8 [SCSI] ibmvscsi: Set default command timeout
Set the default command timeout for ibmvscsi disks to 60 seconds
to ensure we don't prematurely timeout commands. This fixes a problem
seen where the default 30 seconds was not long enough due to
congestion on the server.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:31 -06:00
Adrian Bunk
f37a7238d3 [SCSI] 53c7xx: fix removal fallout
This patch does some additional cleanups after the 53c7xx removal.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
FUJITA Tomonori
f10ab66fa5 [SCSI] tgt: convert to use the data buffer accessors
- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
Gilbert Wu
1237c98db2 [SCSI] aic94xx: update BIOS image from user space.
1. Create a file "update_bios" in sysfs to allow user to update bios
    from user space.

 2. The BIOS image file can be downloaded from web site

"http://www.adaptec.com/en-US/downloads/bios_fw/bios_fw_ver?productId=SAS-48300&dn=Adaptec+Serial+Attached+SCSI+48300"
    and copy the BIOS image into /lib/firmware folder.

 3. The aic994xx will accept "update bios_file" and "verify bios_file"
    commands to perform update and verify BIOS image .

    For example:

     Type "echo "update asc483c01.ufi" > /sys/devices/.../update_bios"
          to update BIOS image from /lib/firmware/as483c01.ufi file into
          HBA's flash memory.

     Type "echo "verify asc483c01.ufi" > /sys/devices/.../update_bios"
          to verify BIOS image between /lib/firmware/asc48c01.ufi file
and
          HBA's flash memory.

 4. Type "cat  /sys/devices/.../update_bios" to view the status or
result
    of updating BIOS.

Signed-off-by: Gilbert Wu <gilbert_wu@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
Kay Sievers
285e9670d9 [SCSI] sr,sd: send media state change modification events
This will send for a card reader slot (remove/add media):
  UEVENT[1187091572.155884] change   /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)
  UEVENT[1187091572.162314] remove   /block/sdb/sdb1 (block)
  UEVENT[1187091572.172464] add      /block/sdb/sdb1 (block)
  UEVENT[1187091572.175408] change   /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)

and for a DVD drive (add/eject media):
  UEVENT[1187091590.189159] change   /devices/pci0000:00/0000:00:1f.1/host4/target4:0:0/4:0:0:0 (scsi)
  UEVENT[1187091590.957124] add      /module/isofs (module)
  UEVENT[1187091604.468207] change   /devices/pci0000:00/0000:00:1f.1/host4/target4:0:0/4:0:0:0 (scsi)

Userspace gets events, even for unpartitioned media. This unifies
the event handling for asynchronoous events (AN) and events caused by
perodical polling the device from userspace.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>

[jejb: modified for new event API]

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:30 -06:00
FUJITA Tomonori
3a43e69ce5 [SCSI] qla1280: fix 32 bit segment code
There's an error remaining in the 32 bit descriptor code after the
conversion to dma accessors:  req_cnt is left uninitialised.

qla1280_32bit_start_scsi gives the following warnings:

drivers/scsi/qla1280.c: In function 'qla1280_32bit_start_scsi':
drivers/scsi/qla1280.c:3044: warning: unused variable 'dma_handle'
drivers/scsi/qla1280.c: In function 'qla1280_queuecommand':
drivers/scsi/qla1280.c:3060: warning: 'req_cnt' is used uninitialized in this function
drivers/scsi/qla1280.c:3042: note: 'req_cnt' was declared here

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-09 15:06:07 -06:00
Linus Torvalds
7b3d9545f9 Revert "scsi: revert "[SCSI] Get rid of scsi_cmnd->done""
This reverts commit ac40532ef0, which gets
us back the original cleanup of 6f5391c283.

It turns out that the bug that was triggered by that commit was
apparently not actually triggered by that commit at all, and just the
testing conditions had changed enough to make it appear to be due to it.

The real problem seems to have been found by Peter Osterlund:

  "pktcdvd sets it [block device size] when opening the /dev/pktcdvd
   device, but when the drive is later opened as /dev/scd0, there is
   nothing that sets it back.  (Btw, 40944 is possible if the disk is a
   CDRW that was formatted with "cdrwtool -m 10236".)

   The problem is that pktcdvd opens the cd device in non-blocking mode
   when pktsetup is run, and doesn't close it again until pktsetup -d is
   run.  The effect is that if you meanwhile open the cd device,
   blkdev.c:do_open() doesn't call bd_set_size() because
   bdev->bd_openers is non-zero."

In particular, to repeat the bug (regardless of whether commit
6f5391c283 is applied or not):

  " 1. Start with an empty drive.
    2. pktsetup 0 /dev/scd0
    3. Insert a CD containing an isofs filesystem.
    4. mount /dev/pktcdvd/0 /mnt/tmp
    5. umount /mnt/tmp
    6. Press the eject button.
    7. Insert a DVD containing a non-writable filesystem.
    8. mount /dev/scd0 /mnt/tmp
    9. find /mnt/tmp -type f -print0 | xargs -0 sha1sum >/dev/null
    10. If the DVD contains data beyond the physical size of a CD, you
        get I/O errors in the terminal, and dmesg reports lots of
        "attempt to access beyond end of device" errors."

which in turn is because the nested open after the media change won't
cause the size to be set properly (because the original open still holds
the block device, and we only do the bd_set_size() when we don't have
other people holding the device open).

The proper fix for that is probably to just do something like

	bdev->bd_inode->i_size = (loff_t)get_capacity(disk)<<9;

in fs/block_dev.c:do_open() even for the cases where we're not the
original opener (but *not* call bd_set_size(), since that will also
change the block size of the device).

Cc: Peter Osterlund <petero2@telia.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-06 10:17:12 -08:00
Dave Dillow
911833440b [SCSI] SRP transport: only remove our own entries
The SCSI SRP transport class currently iterates over all children
devices of the host that is being removed in srp_remove_host(). However,
not all of those children were created by the SRP transport, and
removing them will cause corruption and an oops when their creator tries
to remove them.

Signed-off-by: David Dillow <dillowda@ornl.gov>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-04 14:15:51 -06:00
Linus Torvalds
3a62b5f3cd Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] scsi_sysfs: restore prep_fn when ULD is removed
2008-01-03 11:59:27 -08:00
Ingo Molnar
ac40532ef0 scsi: revert "[SCSI] Get rid of scsi_cmnd->done"
This reverts commit 6f5391c283 ("[SCSI]
Get rid of scsi_cmnd->done") that was supposed to be a cleanup commit,
but apparently it causes regressions:

  Bug 9370 - v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device
  http://bugzilla.kernel.org/show_bug.cgi?id=9370

this patch should be reintroduced in a more split-up form to make
testing of it easier.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-02 13:11:06 -08:00
James Bottomley
751bf4d786 [SCSI] scsi_sysfs: restore prep_fn when ULD is removed
A recent bug report:

http://bugzilla.kernel.org/show_bug.cgi?id=9674

Was caused because the ULDs now set their own prep functions, but
don't necessarily reset the prep function back to the SCSI default
when they are removed.  This leads to panics if commands are sent to
the device after the module is removed because the prep_fn is still
pointing to the old module code.  The fix for this is to implement a
bus remove method that resets the prep_fn pointer correctly before
calling the ULD specific driver remove method.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-02 13:08:00 -06:00
Linus Torvalds
c7eeae734f Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] initio: bugfix for accessors patch
  [SCSI] st: fix kernel BUG at include/linux/scatterlist.h:59!
  [SCSI] initio: fix conflict when loading driver
  [SCSI] sym53c8xx: fix "irq X: nobody cared" regression
  [SCSI] dpt_i2o: driver is only 32 bit so don't set 64 bit DMA mask
  [SCSI] sym53c8xx: fix free_irq() regression
2007-12-19 14:25:56 -08:00
Boaz Harrosh
a169e63740 [SCSI] initio: bugfix for accessors patch
patch: [SCSI] initio: convert to use the data buffer accessors had a
small but fatal bug in that it didn't increment the pointer into the
initio scatterlist descriptors as it looped over the block generated
ones. Fixed here.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:04:15 -06:00
FUJITA Tomonori
cd81621c5c [SCSI] st: fix kernel BUG at include/linux/scatterlist.h:59!
This is caused by a missing scatterlist initialisation (it only shows
up when sg list handling debugging is turned on).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kai Makisara <Kai.Makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:04:13 -06:00
Alan Cox
99f1f53492 [SCSI] initio: fix conflict when loading driver
> I have a scanner connected to a Initio INI-950 SCSI card and I recently
> upgraded from SuSE 10.2 to 10.3.  The new kernel doesn't see any of my
> devices.  I get the following in /var/log/messages:
>
> ACPI: PCI Interrupt 0000:00:0a.0[A] -> GSI 17 (level, low) -> IRQ 16
> initio: I/O port range 0x0 is busy.
> ACPI: PCI interrupt for device 0000:00:0a.0 disabled

Humm not a collision - thats a bug in the driver updating.  Looks like the
changes I made and combined with Christoph's lost a line somewhere when I
was merging it all.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:04:11 -06:00
Tony Battersby
cedefa13db [SCSI] sym53c8xx: fix "irq X: nobody cared" regression
The patch described by the following excerpt from ChangeLog-2.6.24-rc1
eventually causes a "irq X: nobody cared" error after a while:

commit 99c9e0a1d6
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Oct 5 15:55:12 2007 -0400

    [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE

After this happens, the kernel disables the IRQ, causing the SCSI card
to stop working until the next reboot.  The problem is caused by the
interrupt handler returning IRQ_NONE instead of IRQ_HANDLED after
handling an interrupt-on-the-fly (INTF) condition.  The following patch
fixes the problem.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:04:09 -06:00
James Bottomley
c80ddf00cd [SCSI] dpt_i2o: driver is only 32 bit so don't set 64 bit DMA mask
This fixes a potential corruption bug where the truncation would cause
reading or writing to the wrong memory area on machines with >4GB of
main memory.

Cc: Stable Kernel Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:04:08 -06:00
Tony Battersby
7ee2413ca0 [SCSI] sym53c8xx: fix free_irq() regression
The following commit changed the pointer passed to request_irq(), but
failed to change the pointer passed to free_irq():

commit 99c9e0a1d6
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Oct 5 15:55:12 2007 -0400

    [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE

    ...

The result is that free_irq() doesn't actually take any action.  This
patch fixes it.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-18 16:03:09 -06:00
Bartlomiej Zolnierkiewicz
69ae6fee4f ide-scsi: add ide_scsi_hex_dump() helper
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Denis Cheng <crquan@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-12-12 23:31:57 +01:00
Maciej W. Rozycki
522939d45c esp_scsi: fix reset cleanup spinlock recursion
The esp_reset_cleanup() function is called with the host lock held and
invokes starget_for_each_device() which wants to take it too.  Here is a
fix along the lines of shost_for_each_device()/__shost_for_each_device()
adding a __starget_for_each_device() counterpart which assumes the lock
has already been taken.

Eventually, I think the driver should get modified so that more work is
done as a softirq rather than in the interrupt context, but for now it
fixes a bug that causes the spinlock debugger to fire.

While at it, it fixes a small number of cosmetic problems with
starget_for_each_device() too.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:55 -08:00
Andrew Morton
24601bbcac revert "dpt_i2o: convert to SCSI hotplug model"
revert

    commit 55d9fcf57b
    Author: Matthew Wilcox <matthew@wil.cx>
    Date:   Mon Jul 30 15:19:18 2007 -0600

        [SCSI] dpt_i2o: convert to SCSI hotplug model

         - Delete refereces to HOSTS_C
         - Switch to module_init/module_exit instead of detect/release
         - Don't pass around the host template and rename it to adpt_template
         - Switch from scsi_register/scsi_unregister to scsi_host_alloc,
           scsi_add_host, scsi_scan_host and scsi_host_put.

Because it caused (for unknown reasons) Andres' all-data-reads-as-zeroes
problem, reported at
http://groups.google.com/group/fa.linux.kernel/msg/083a9acff0330234

Cc: Matthew Wilcox <matthew@wil.cx>
Cc: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Anders Henke <anders.henke@1und1.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:54 -08:00
Linus Torvalds
26145f7e7e Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage
  [SCSI] zfcp: fix cleanup of dismissed error recovery actions
  [SCSI] zfcp: fix dismissal of error recovery actions
  [SCSI] qla1280: convert to use the data buffer accessors
  [SCSI] iscsi: return data transfer residual for data-out commands
  [SCSI] iscsi_tcp: fix potential lockup with write commands
  [SCSI] aacraid: fix security weakness
  [SCSI] aacraid: fix up le32 issues in BlinkLED
  [SCSI] aacraid: fix potential panic in thread stop
  [SCSI] aacraid: don't assign cpu_to_le32(constant) to u8
2007-12-03 08:20:11 -08:00
Geert Uytterhoeven
e482179d54 m68k: zorro7xx needs <asm/amigahw.h>
m68k: zorro7xx needs <asm/amigahw.h> if !CONFIG_AMIGA_PCMCIA

Reported by Ingo Juergensmann <ij@2007.bluespice.org>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-29 09:24:52 -08:00
Denis Cheng
6413f08666 ide-scsi: use print_hex_dump from <linux/kernel.h>
these utilities implemented in lib/hexdump.c are more handy, please use this.

Bart:
- s/KERN_DEBUG/KERN_CONT/ as pointed out by Randy
- s/DUMP_PREFIX_OFFSET/DUMP_PREFIX_NONE/
- don't include ASCII dump
- respect 80-columns limit

Signed-off-by: Denis Cheng <crquan@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27 21:35:58 +01:00
Jeff Garzik
1e64166430 [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage
* Always pass the same value to free_irq() that we pass to
  request_irq().  This fixes several bugs.

* Always call NCR5380_intr() with 'irq' and 'dev_id' arguments.

  Note, scsi_falcon_intr() is the only case now where dev_id is not the
  scsi_host.

* Always pass Scsi_Host to request_irq().  For most cases, the drivers
  already did so, and I merely neated the source code line.  In other
  cases, either NULL or a non-sensical value was passed, verified to be
  unused, then changed to be Scsi_Host in anticipation of the future.

In addition to the bugs fixes, this change makes the interface usage
consistent, which in turn enables the possibility of directly
referencing Scsi_Host from all NCR5380_intr() invocations.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-25 12:19:26 +02:00
Andrew Morton
d297a5d576 aic94xx_sds: rename FLASH_SIZE
arm:

drivers/scsi/aic94xx/aic94xx_sds.c:381:1: warning: "FLASH_SIZE" redefined
In file included from include/asm/arch/irqs.h:22,
                 from include/asm/irq.h:4,
                 from include/asm/hardirq.h:6,
                 from include/linux/hardirq.h:7,
                 from include/asm-generic/local.h:5,
                 from include/asm/local.h:1,
                 from include/linux/module.h:19,
                 from include/linux/device.h:21,
                 from include/linux/pci.h:52,
                 from drivers/scsi/aic94xx/aic94xx_sds.c:28:
include/asm/arch/platform.h:444:1: warning: this is the location of the previous definition

Cc: Gilbert Wu <gilbert_wu@adaptec.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:44 -08:00
Jes Sorensen
5c1da582b3 [SCSI] qla1280: convert to use the data buffer accessors
- remove the unnecessary map_single path.
- convert to use the new accessors for the sg lists and the parameters.

Fixed to missing initialization of sg lists before calling
for_each_sg() by Jes Sorensen - sg list needs to be initialized before
trying to pull the elements out of it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-14 18:25:44 -06:00
Tony Battersby
6ee6a2f025 [SCSI] iscsi: return data transfer residual for data-out commands
Currently, the iSCSI driver returns the data transfer residual for
data-in commands (e.g. read) but not data-out commands (e.g. write).
This patch makes it return the data transfer residual for both types of
commands.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-14 14:52:16 -06:00
Tony Battersby
505f76b306 [SCSI] iscsi_tcp: fix potential lockup with write commands
There is a race condition in iscsi_tcp.c that may cause it to forget
that it received a R2T from the target.  This race may cause a data-out
command (such as a write) to lock up.  The race occurs here:

static int
iscsi_send_unsol_pdu(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
{
	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
	int rc;

	if (tcp_ctask->xmstate & XMSTATE_UNS_HDR) {
		BUG_ON(!ctask->unsol_count);
		tcp_ctask->xmstate &= ~XMSTATE_UNS_HDR; <---- RACE
		...

static int
iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
{
	...
	tcp_ctask->xmstate |= XMSTATE_SOL_HDR_INIT; <---- RACE
	...

While iscsi_xmitworker() (called from scsi_queue_work()) is preparing to
send unsolicited data, iscsi_tcp_data_recv() (called from
tcp_read_sock()) interrupts it upon receipt of a R2T from the target.
Both contexts do read-modify-write of tcp_ctask->xmstate.  Usually, gcc
on x86 will make &= and |= atomic on UP (not guaranteed of course), but
in this case iscsi_send_unsol_pdu() reads the value of xmstate before
clearing the bit, which causes gcc to read xmstate into a CPU register,
test it, clear the bit, and then store it back to memory.  If the recv
interrupt happens during this sequence, then the XMSTATE_SOL_HDR_INIT
bit set by the recv interrupt will be lost, and the R2T will be
forgotten.

The patch below (against 2.6.24-rc1) converts accesses of xmstate to use
set_bit, clear_bit, and test_bit instead of |= and &=.  I have tested
this patch and verified that it fixes the problem.  Another possible
approach would be to hold a lock during most of the rx/tx setup and
post-processing, and drop the lock only for the actual rx/tx.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-14 14:51:58 -06:00
Alan Cox
5f78e89b5f [SCSI] aacraid: fix security weakness
Actually there are several but one is trivially fixed

1.	FSACTL_GET_NEXT_ADAPTER_FIB ioctl does not lock dev->fib_list
but needs to
2.	Ditto for FSACTL_CLOSE_GET_ADAPTER_FIB
3.	It is possible to construct an attack via the SRB ioctls where
the user obtains assorted elevated privileges. Various approaches are
possible, the trivial ones being things like writing to the raw media
via scsi commands and the swap image of other executing programs with
higher privileges.

So the ioctls should be CAP_SYS_RAWIO - at least all the FIB manipulating
ones. This is a bandaid fix for #3 but probably the ioctls should grow
their own capable checks. The other two bugs need someone competent in that
driver to fix them.

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Mark Salyzyn <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-11 17:35:48 -06:00
Salyzyn, Mark
e6096963d2 [SCSI] aacraid: fix up le32 issues in BlinkLED
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-07 08:17:55 -08:00
Salyzyn, Mark
e85fbc595a [SCSI] aacraid: fix potential panic in thread stop
Got a panic in the threading code on an older kernel when the Adapter
failed to load properly and driver shut down apparently before any
threading had started, can not dupe. Expect that this may be relevant in
the latest kernel, but not sure. This patch does no harm, and should
alleviate the possibility of this panic.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-07 08:15:49 -08:00
Stephen Rothwell
3b2d871245 [SCSI] aacraid: don't assign cpu_to_le32(constant) to u8
Noticed on PowerPC allmod config build:

drivers/scsi/aacraid/commsup.c:1342: warning: large integer implicitly truncated to unsigned type
drivers/scsi/aacraid/commsup.c:1343: warning: large integer implicitly truncated to unsigned type
drivers/scsi/aacraid/commsup.c:1344: warning: large integer implicitly truncated to unsigned type

Also fix some whitespace on the changed lines.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Mark Salyzyn <mark_salyzyn@adaptec.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-07 08:12:02 -08:00
Jeff Garzik
bd3989e006 PCI: Add Kconfig option to disable deprecated pci_find_* API
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:17 -08:00
Linus Torvalds
aac9e28d2f Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] ibmvscsi: Prevent IO during partner login
  [SCSI] lpfc : Correct queue tag handling
  [SCSI] Update MAINTAINER email address and trees
  [SCSI] osst: fix if (...) \n #if... cases missing semicolons when false
2007-11-05 09:57:13 -08:00
Jeff Garzik
a341cd0f6a SCSI: add asynchronous event notification API
Originally based on a patch by Kristen Carlson Accardi @ Intel.
Copious input from James Bottomley.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-11-03 22:23:02 -04:00
Robert Jennings
3c887e8a1a [SCSI] ibmvscsi: Prevent IO during partner login
By setting the request_limit in send_srp_login to 1 we allowed login
requests to be sent to the server adapter.  If this was not an initial
login, but was a login after a disconnect with the server, other I/O
requests could attempt to be processed before the login occured.  These
I/O requests would fail, sometimes resulting in filesystems getting
marked read-only.

To address this we can set the request_limit to 0 while doing the login
and add an exception where login requests, along with task management
events, are always passed to the server.

There is a case where the request_limit had already reached 0 would result
in all events being sent rather than returning SCSI_MLQUEUE_HOST_BUSY; this
has also been fixed by this patch.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-03 12:10:36 -05:00
James Smart
7e2b19fbc7 [SCSI] lpfc : Correct queue tag handling
This patch corrects the lpfc tag handling issue identified by Hannes Reinecke
http://marc.info/?l=linux-scsi@m=119270235628850&w=2

The basis for this patch originated from Hajime Kai. Thank You Hajime.

Signed-off-by: hajime-kai@soft.fujitsu.com
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-03 12:09:29 -05:00
Jens Axboe
c46f2334c8 [SG] Get rid of __sg_mark_end()
sg_mark_end() overwrites the page_link information, but all users want
__sg_mark_end() behaviour where we just set the end bit. That is the most
natural way to use the sg list, since you'll fill it in and then mark the
end point.

So change sg_mark_end() to only set the termination bit. Add a sg_magic
debug check as well, and clear a chain pointer if it is set.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-11-02 08:47:06 +01:00
Russell King
01c0ad5854 [ARM] Fix an rpc_defconfig regression
Fix:

  CC      drivers/scsi/arm/powertec.o
In file included from drivers/scsi/arm/powertec.c:29:
drivers/scsi/arm/scsi.h: In function 'next_SCp':
drivers/scsi/arm/scsi.h:42: error: 'struct scatterlist' has no member named 'page'
drivers/scsi/arm/scsi.h: In function 'init_SCp':
drivers/scsi/arm/scsi.h:80: error: 'struct scatterlist' has no member named 'page'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-31 15:21:35 +00:00
Dirk Hohndel
e403149c92 Kbuild/doc: fix links to Documentation files
Fix links to files in Documentation/* in various Kconfig files

Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-30 14:26:30 -07:00
Linus Torvalds
20dc9f01a8 Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block
* 'sg' of git://git.kernel.dk/linux-2.6-block:
  Correction of "Update drivers to use sg helpers" patch for IMXMMC driver
  sg_init_table() should use unsigned loop index variable
  sg_last() should use unsigned loop index variable
  Initialise scatter/gather list in sg driver
  Initialise scatter/gather list in ata_sg_setup
  x86: fix pci-gart failure handling
  SG: s390-scsi: missing size parameter in zfcp_address_to_sg()
  SG: clear termination bit in sg_chain()
2007-10-29 07:49:10 -07:00
Al Viro
db3a91fe2b deal with resource allocation bugs in arcmsr
a) for type B we should _not_ iounmap() acb->pmu; it's not ioremapped.
b) for type B we should iounmap() two regions we _do_ ioremap.
c) if ioremap() fails, we need to bail out (and clean up).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:33 -07:00
Al Viro
142956af52 fix abuses of ptrdiff_t
Use of ptrdiff_t in places like

-                       if (!access_ok(VERIFY_WRITE, u_tmp->rx_buf, u_tmp->len))
+                       if (!access_ok(VERIFY_WRITE, (u8 __user *)
+                                               (ptrdiff_t) u_tmp->rx_buf,
+                                               u_tmp->len))

is wrong; for one thing, it's a bad C (it's what uintptr_t is for; in general
we are not even promised that ptrdiff_t is large enough to hold a pointer,
just enough to hold a difference between two pointers within the same object).
For another, it confuses the fsck out of sparse.

Use unsigned long or uintptr_t instead.  There are several places misusing
ptrdiff_t; fixed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:33 -07:00
Al Viro
0c7eb2eb80 fix reentrancy bug in arcmsr_get_iop_{r,w}qbuffer()
doh...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:33 -07:00
Al Viro
6a7d26d58a arcmsr: endianness bug
initializing a field in data shared with the card with
cpu_to_le32(something) | 0x100000 is broken - the field is, indeed,
little-endian and we need cpu_to_le32() on both parts.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:33 -07:00
Al Viro
80da1adbbf trivial annotations in arcmsr
driver still has serious portability problems

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:33 -07:00
Anton Blanchard
30fa0d0f0c Initialise scatter/gather list in sg driver
After turning on DEBUG_SG I hit a fail:

kernel BUG at include/linux/scatterlist.h:50!

	sg_build_indirect
	sg_build_reserve
	sg_open
	chrdev_open
	__dentry_open
	do_filp_open
	do_sys_open

We should initialise the sg list when we allocate it in sg_build_sgat.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-29 09:18:03 +01:00
Ilpo Järvinen
ccd1443b5a [SCSI] osst: fix if (...) \n #if... cases missing semicolons when false
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Acked-by: Willem Riede <osst@riede.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-27 14:31:06 -05:00
Herbert Xu
68e3f5dd4d [CRYPTO] users: Fix up scatterlist conversion errors
This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-27 00:52:07 -07:00
Jens Axboe
642f149031 SG: Change sg_set_page() to take length and offset argument
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.

Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-24 11:20:47 +02:00
Geert Uytterhoeven
5a1cb47ff4 m68k: sg fallout
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24 08:55:40 +02:00
Linus Torvalds
1212663fba Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits)
  [SCSI] qla2xxx: Update version number to 8.02.00-k5.
  [SCSI] qla2xxx: Correct display of ISP serial-number.
  [SCSI] qla2xxx: Correct residual-count handling discrepancies during UNDERRUN handling.
  [SCSI] qla2xxx: Make driver (mostly) legacy I/O port free.
  [SCSI] qla2xxx: Fix issue where final flash-segment updates were falling into the slow-path write handler.
  [SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates.
  [SCSI] qla2xxx: Defer explicit interrupt-polling processing to init-time scenarios.
  [SCSI] qla2xxx: Resync with latest HBA SSID specification -- 2.2u.
  [SCSI] sym53c8xx: Remove sym_xpt_async_sent_bdr
  [SCSI] sym53c8xx: Remove pci_dev pointer from sym_shcb
  [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE
  [SCSI] sym53c8xx: Get rid of IRQ_FMT and IRQ_PRM
  [SCSI] sym53c8xx: Use scmd_printk where appropriate
  [SCSI] sym53c8xx: Simplify DAC DMA handling
  [SCSI] sym53c8xx: Remove tag_ctrl module parameter
  [SCSI] sym53c8xx: Remove io_ws, mmio_ws and ram_ws elements
  [SCSI] sym53c8xx: Remove ->device_id
  [SCSI] sym53c8xx: Use pdev->revision
  [SCSI] sym53c8xx: PCI Error Recovery support
  [SCSI] sym53c8xx: Stop overriding scsi_done
  ...
2007-10-23 16:37:29 -07:00
Andrew Vasquez
af2709fd0d [SCSI] qla2xxx: Update version number to 8.02.00-k5.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:55:16 -04:00
Andrew Vasquez
8b7afc2a90 [SCSI] qla2xxx: Correct display of ISP serial-number.
The original serial-number calculations based on WWPN no longer
apply to newer ISPs (ISP24xx and ISP25xx).  These newer board's
serial number reside in the VPD.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:54:54 -04:00
Andrew Vasquez
6acf819002 [SCSI] qla2xxx: Correct residual-count handling discrepancies during UNDERRUN handling.
For recent ISPs, software during CS_UNDERRUN handling must
determine if the two residuals, firmware-calculated and FCP_RSP,
are different to recognize if a frame has been dropped.  Update
the driver to catch this condition, and clear the
SS_RESIDUAL_UNDER and lscsi_status bits.  This logic is
consistent with what earlier firmwares did by explicitly
cracking open the FCP_RSP statuses and clearing
SS_RESIDUAL_UNDER.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:54:41 -04:00
Andrew Vasquez
285d0321d1 [SCSI] qla2xxx: Make driver (mostly) legacy I/O port free.
Recent ISPs need only the single MMIO BAR to manipulate HW
registers.  Unfortunately, ISP21xx, ISP22xx, ISP23xx, and ISP63xx
type cards still require the I/O mapped region to manipulate the
FLASH via the two HW flash-registers (flash_address and
flash_data).

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:54:28 -04:00
Andrew Vasquez
94d6a2b328 [SCSI] qla2xxx: Fix issue where final flash-segment updates were falling into the slow-path write handler.
Original implementation would not use the burst-write mechanisms
for requests equal to OPTROM_BURST_DWORDS transfer dwords.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:54:10 -04:00
Andrew Vasquez
2c96d8d0c1 [SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates.
Since both NVRAM and VPD regions of the flash reside on unaligned
sector boundaries, during update, the driver must perform a
read-modify-write operation to the composite NVRAM/VPD region.
This affects ISP25xx type boards only.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:53:55 -04:00