After discussions in the thread titled:
[PATCH] scsi_debug: illegal blocking memory allocation
here is a patch containing the discussed fix and some other
fixes and additions. The patch is against lk 2.6.20-rc3 .
The version is bumped to 1.81 .
ChangeLog:
- Change several GFP_KERNEL allocations to GFP_ATOMIC
as they can be called from queuecommand() context
- check above allocation returns and if out of memory
report DID_REQUEUE in two cases, DID_NO_CONNECT in
another, and fail slave configure() in another
- add support for WRITE BUFFER command
- add aborted_command error injection support
(opts mask 0x10), similar mechanism to
recovered_error injection.
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
scsi_retry_command only has a single caller, so there is no point
in having this function. Additionally the memset of the sense
buffer it does is entirely superflous as scsi_request_fn already
calls scsi_init_cmd_errh to perform this memset before the command
is reissued.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The D700 needs the burst length setting to the previous 53c700 default
of 8 otherwise it will be effectively disabled.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This is a patch, which allows not only disabling bursting but to specify
different burst lenghts. This feature is needed to get the 53c700 driver
working for the onboard SCSI controller of SNI RM machines, which only
work reliably with a 4 word burst length.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Setting .ConfigBase and .Present is now done at the pcmcia core.
The driver cleanup missed a few places where the driver did set .Present
to PRESENT_OPTION and later to the values from the CIS. Setting to
PRESENT_OPTION now overrides the values from the CIS. So just remove
those lines.
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jeremy caught a bug in the qla1280 driver where it didn't set the
residual value correctly.
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Update domain name change from lsil.com to lsi.com.
Change module author to megaraidlinux@lsi.com
Signed-off-by: Sumant Patro <sumant.patro@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The attached patch updates the 3ware 8000 driver:
- Free irq handler in __tw_shutdown().
- Turn on RCD bit for caching mode page.
- Serialize reset code.
Signed-off-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
sr_block_ioctl() should proceed to SCSI ioctls if cdrom_ioctl()
returns -ENOSYS. However it tested for ENOSYS instead of -ENOSYS
rendering all SCSI ioctls other than GET_IDLUN and GET_BUS_NUMBER
inaccessible. Fix it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Add kmalloc failure check and fix the loop on error path. Without the
patch pool element at index [0] will not be freed.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Update drivers/scsi/aacraid/linit.c and Documentation/scsi/aacraid.txt
file with the current list of
adapters supported by the aacraid driver. Deprecated a few adapters that
never shipped, corrected a
few and added new adapters that matched the family code support. No
functional changes to the driver.
No side effects.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Yanling Qi, noted that when the sense data length of
a check-condition is greater than 0x7f (127), senselen = (data[0] << 8)
| data[1] will become negative. It causes different kinds of panics from
GPF, spin_lock deadlock to spin_lock recursion.
We were also swapping this value on big endien machines.
This patch fixes both issues by using be16_to_cpu().
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch cures two run together printk messages in iSCSI
driver.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The return value of crypto_alloc_hash() should be checked by
IS_ERR().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The transition from crypto_digest_*() to the crypto_hash_*() family
introduced a bug into the data digest calculation: crypto_hash_update() is
called with the number of S/G elements instead of the S/G lists data size.
Signed-off-by: Arne Redlich <arne.redlich@xiranet.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Apparently no ATAPI CD/DVD actually supports REPORT LUNS (in spite of
claiming scsi-3 compliance, where it's mandatory) and worse, some
crash or flake out on being sent the command. This may actually be
due to a conflict between SPC and MMC with MMC not listing REPORT LUNS
as mandatory. The same standards conflict exists for RBC as well.
Fix all of this by reversing the blacklists for CDROM and RBC devices
(i.e. now they have to have the BLIST_REPORTLUNS2 flag set even if the
inquiry data returns scsi-3 compliance).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Rather than a direct call, as was done in the case of a
RISC-paused state within the ISP24xx interrupt handler.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Original code would incorrectly use non-24xx code-paths.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Disable subsequent GPSC queries if Fabric Management services do
not support the operation.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Apparently the driver compiles and runs, so tidy up some macro warnings
and bring it back as unBROKEN.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The code does this:
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
...
scsi_normalize_sense(sense, sizeof(*sense), sshdr)
however the sizeof will return 1 not 96 which means the sense data will
have no valid ASC/ASCQ values. Fix by putting the correct sense size.
The only affected case for this would have been the DV buffer sanity
check failure, which is fortunately quite rare.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
If either scsi_complete_async_scans() is called a second time
before the first call has finished, or a host scan is started while
scsi_complete_async_scans() is still sleeping, it would fail to wake up
the other task, which would sleep forever.
I've changed the kernel-doc to make it clear that
scsi_complete_async_scans() only guarantees that scans which started
before it was called are guaranteed to have finished when it returns.
I considered making it wait until all scans are completed, but it can't
guarantee that no more scans will start before it returns anyway, and it
runs the risk of confusing other callers of scsi_complete_async_scans()
for hosts actually scanning.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The Advansys ISA/EISA/PCI driver has a compile error when
CONFIG_PCI=n, so wrap the pci_device_id table inside
ifdef CONFIG_PCI.
drivers/scsi/advansys.c: At top level:
drivers/scsi/advansys.c:18219: error: array type has incomplete element type
drivers/scsi/advansys.c:18221: error: 'PCI_ANY_ID' undeclared here (not in a function)
make[2]: *** [drivers/scsi/advansys.o] Error 1
make[1]: *** [drivers/scsi] Error 2
make: *** [drivers] Error 2
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Choose rpa_vscsi.c over iseries_vscsi.c when building both pseries and
iseries. This fixes a link error.
Signed-off-by: Judith Lebzelter <judith@osdl.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We have full flexibility of merging parameters now, so we can remove the
hooks that define back/front/request merge strategies. Nobody is using
them anymore.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
It's a file system thing, for block requests the only size used in the
io paths is ->data_len as it is in bytes, not sectors.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Run this:
#!/bin/sh
for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
echo "De-casting $f..."
perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
done
And then go through and reinstate those cases where code is casting pointers
to non-pointers.
And then drop a few hunks which conflicted with outstanding work.
Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
ordering of the first two arguments are fixed.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Make sun3 scsi drivers compile/work again (though with way too many warnings...)
Tested on 3/50, 3/60.
Signed-off-by: Sam Creasey <sammy@sammy.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Some people want to use ide_cd for CD-ROM but still dynamically load
ide-scsi for things like tape drives. If you compile in the CD driver this
works out but if you want them modular you need an option to ensure that
whoever loads first the right things happen.
This replaces the original draft patch which leaked a scsi host reference
[akpm@osdl.org: add MODULE_PARM_DESC]
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pass struct dev pointer to dma_cache_sync()
dma_cache_sync() is ill-designed in that it does not have a struct device
pointer argument which makes proper support for systems that consist of a
mix of coherent and non-coherent DMA devices hard. Change dma_cache_sync
to take a struct device pointer as first argument and fix all its callers
to pass it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
dma_is_consistent() is ill-designed in that it does not have a struct
device pointer argument which makes proper support for systems that consist
of a mix of coherent and non-coherent DMA devices hard. Change
dma_is_consistent to take a struct device pointer as first argument and fix
the sole caller to pass it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#
set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
done
The script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
SLAB_KERNEL is an alias of GFP_KERNEL.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Conflicts:
drivers/pcmcia/ds.c
Fix up merge failures with Linus's head and fix new compile failures.
Signed-Off-By: David Howells <dhowells@redhat.com>
Simple patch to add the new PCIe version of the 29320 card.
Signed-off: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The original wait loop may be much longer than intended time.
Use more accurate timer_after for it. Also adjust wait value to
avoid unnecessary long waiting.
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Add support for st_vsc1 type device (st_vsc is ok because it does not
require extra buffer).
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
- add comments for various devices
- remove unused device ids(0xf350, 0x4301, 0x8301, 0x8302)
- add new device id(0xe350)
- fix vendor id of st_vsc
- modify Kconfig help info
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Firmware of new version may adjust default queue length. It is
backward compatible.
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
During hard reset, an all-1 value from PCI_COMMAND should be invalid.
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This command needs information from both firmware and driver. First copy
information from firmware to buffer, then fill in driver information.
Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Conflicts:
drivers/ata/libata-scsi.c
include/linux/libata.h
Futher merge of Linus's head and compilation fixups.
Signed-Off-By: David Howells <dhowells@redhat.com>
megaraid's MMIO RD*/WR* macros directly call readl() and writel() with
an 'unsigned long' argument. This throws a warning, but is otherwise OK
because the 'unsigned long' is really the result of ioremap(). This
setup is also OK because the variable can hold an ioremap cookie /or/ a
PCI I/O port (PIO).
However, to fix the warning thrown when readl() and writel() are passed
an unsigned long cookie, I introduce 'void __iomem *mmio_base', holding
the same value as 'base'. This will silence the warnings, and also
cause an oops whenever these MMIO-only functions are ever accidentally
passed an I/O address.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
drivers/scsi/scsi_tgt_if.c: In function 'tgt_uspace_send_event':
drivers/scsi/scsi_tgt_if.c:88: warning: implicit declaration of function 'flush_dcache_page'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Conflicts:
drivers/infiniband/core/iwcm.c
drivers/net/chelsio/cxgb2.c
drivers/net/wireless/bcm43xx/bcm43xx_main.c
drivers/net/wireless/prism54/islpci_eth.c
drivers/usb/core/hub.h
drivers/usb/input/hid-core.c
net/core/netpoll.c
Fix up merge failures with Linus's head and fix new compilation failures.
Signed-Off-By: David Howells <dhowells@redhat.com>
struct pcmcia_device *p_dev->conf.ConfigBase and .Present are set in almost
all PCMICA driver right at the beginning, using the same calls but slightly
different implementations. Unfiy this in the PCMCIA core.
Includes a small bugfix ("drivers/net/pcmcia/xirc2ps_cs.c: remove unused
label") from and Signed-off-by Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
As we read out the manufactor and card_id from the PCMCIA device in the
PCMCIA core, and device drivers can access those reliably in struct
pcmcia_device's fields manf_id and card_id, remove additional (and partly
broken) manf_id and card_id detection logic from PCMCIA device drivers.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
With async scanning, we're now tripping the BUG_ON in
sas_ex_discover_end_dev(), so make the error handling here correct.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Misc Fixes:
- Prevent references to NULL node list element in reset routines.
- Add missing IOCB types to switch tables
- Reset the card on Port Error 5
- Fix infinite loop in LUN reset
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The driver now allows both wwpn and wwnn to be set.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
To avoid continually updating the driver for new subsystem ids
(as adapter modules are proliferating), remove this 2nd level decode.
Genericize the reported Adapter names to be consistent across
Emulex product line.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Add MSI (Message Signalled Interrupts) support
Actual use must be enabled via the new module parameter "lpfc_use_msi"
Defaults to no use
Many thanks to Frederic Temporelli who implemented the initial patch.
Signed-off-by: Frederic Temporelli <frederic.temporelli@ext.bull.net>
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Adjust LOG_FCP logging to be more meaningful.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
It was not accounted for in the fast/slow rings.
Genericize the implementation and control it via sysfs
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Discovery Fixes:
- Prevent starting discovery of a node if discovery is in progress.
- Code improvement (reduction) for lpfc_findnode_did().
- Update discovery to send RFF to Fabric on link up
- Bypass unique WWN checks for fabric addresses
- Add ndlp to plogi list prior to issuing the plogi els command
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This is IBM Virtual SCSI target driver for tgt. The driver is based on
the original ibmvscsis driver:
http://lkml.org/lkml/2005/10/17/99
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
libsrp provides helper functions for SRP target drivers.
Some SRP target drivers would be out of drivers/scsi/ so we added an
entry for libsrp in drivers/scsi/Kconfig.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
In the switch over, I forgot to set the command length, so it sends out
a request sense with whatever length the prior command had (and fails
badly if it wasn't 6).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Use NULL instead of 0 for pointers (sparse warning):
drivers/scsi/qla2xxx/qla_attr.c:393:4: warning: Using plain integer as NULL pointer
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Fix various .c/.h typos in comments (no code changes).
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Makefile and Kconfig for tgt.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The user-space daemon and tgt kernel module need bi-directional
kernel/user high-performance interface, however, mainline provides no
standard interface like that.
This patch adds shared memory interface between kernel and user spaces
like some other drivers do by using own character device. The
user-space daemon and tgt kernel module creates shared memory via mmap
and use it like ring buffer. poll (kernel to user) and write (user to
kernel) system calls are used for notification.
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@SteelEye.com>
The core scsi target lib functions.
TODO:
- mv md/dm-bio-list.h to linux/bio-list.h so md and us do not have to
do that weird include.
- convert scsi_tgt_cmd's work struct to James's execute code. And try
to kill our scsi_tgt_cmd.
- add host state checking. We do refcouting so hotplug is partially
supported, but we need to add state checking to make it easier on
the LLD.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch contains the needed changes to the scsi-ml for the target
mode support.
Note, per the last review we moved almost all the fields we added
to the scsi_cmnd to our internal data structure which we are going
to try and kill off when we can replace it with support from other
parts of the kernel.
The one field we left on was the offset variable. This is needed to handle
the case where the target gets request that is so large that it cannot
execute it in one dma operation. So max_secotors or a segment limit may
limit the size of the transfer. In this case our tgt core code will
break up the command into managable transfers and send them to the
LLD one at a time. The offset is then used to tell the LLD where in
the command we are at. Is there another field on the scsi_cmd for
that?
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
WARNING: drivers/scsi/initio.o - Section mismatch: reference to .init.data: from .text between 'i91u_detect' (at offset 0x26e8) and 'i91uSCBPost'
WARNING: drivers/scsi/initio.o - Section mismatch: reference to .init.data:i91u_pci_devices from .text between 'i91u_detect' (at offset 0x26ef) and 'i91uSCBPost'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Modify intialization semantics:
- perform basic hardware configuration only (as usual)
- allocate resources
- load and execute firmware
- defer link (transport) negotiations to the DPC thread
- again the code in qla2x00_initialize_adapter() to stall probe()
completion was needed for legacy-style scanning.
- DPC thread stalls until probe() complete.
- before probe() completes, set DPC flags to perform loop-resync logic
(similar to what's done during cable-insertion/removal).
Benefits: user does not have to wait 20+ seconds in case the FC cable
is unplugged during driver load, code consolidation (removal of
redundant link negotiation logic during initialize_adaoter()), and
finilly, the driver no longer needs to defer the fc_remote_port_add()
calls to hold off lun-scanning prior to returning from the probe()
function.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
If a driver can find its own targets, it can now fill in scan_finished and
(optionally) scan_start in the scsi_host_template. Then, when it calls
scsi_scan_host(), it will be called back (from a thread if asynchronous
discovery is enabled), first to start the scan, and then at intervals to
check if the scan is completed.
Also make scsi_prep_async_scan and scsi_finish_async_scan static.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Drivers that called scsi_scan_target() instead of scsi_scan_host() were
still adding devices; this needs to be under the control of userspace,
not the driver.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Without this patch, the user has to add a kernel command line parameter
to get asynchronous SCSI scanning. Now they can select the default at
compile time and still override it at boot time if they need to.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Received from Mark Salyzyn:
Version patch, update to reflect a rough estimate of the Adaptec build
(2423) that coincides with the sources on kernel.org.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Received from Mark Salyzyn:
Add code to abort outstanding management ioctl fibs when the blinkLED recovery
is performed. This code is 'clunky' and does not have any real feedback in that
the reset could progress before the user application has gotten it's
notification of command completion. We put a schedule() call to delay just the
right amount for most cases, because we tried a spin and still managed to find
cases where we would spin forever waiting for the management application to
acknowledge the impending doom surrounding the cause of the BlinkLED. Will
cause an oops in the context of the management application if we proceed too
quickly. I view this as the lesser of many evils since currently if there are
outstanding management ioctls during a need to reset/recover the adapter, the
management application just locks up and waits forever. The best practices fix
for this problem not going to be simple or easy (at least the fixes I imagine
today); and we found a balance between the needs of the driver to proceed, and
the applications that locked or confused that would hold back the driver. I
just do not like the idea of a kernel oops in an application to deal with low
priority, sluggish or misbehaving applications.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Received from Mark Salyzyn:
Blinkled at startup is useful for catching Adapters in a lot of pain, in a
BlinkLED assert, quickly; rather than waiting several minutes for commands to
timeout.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch makes ipr_ioctl static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Since the default error log size has increased on SAS adapters,
prevent ipr from logging this additional data unless requested
to do so by the user set log level in order to prevent flooding
the logs.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Adds support for logging SAS fabric errors logged by
the ipr firmware.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Remove ipr's usage of the scsi transport eh_timed_out for
handling SATA timeouts. This was only needed in order to set
some flags on the qc prior to calling ata_do_eh.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Both SCSI_IPR_TRACE and SCSI_IPR_DUMP should be defaulted to
yes when SCSI_IPR is enabled.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The ipr disk array devices do not support a cancel all
requests primitive, so change the ipr driver to never
send it.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
If an ipr adapter hits a fatal microcode error requiring a reset
while a SATA device is going through EH, it can result in a command
getting issued to the ipr adapter while it is getting reset, which
can cause PCI bus errors. Wait for any outstanding adapter reset
to finish prior to issuing a SATA device reset.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch fixes a timing issue related to nvram accesses in qla4xxx
driver for some cpu/slot speed combination.
Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch makes two needlessly global functions static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: "Patro, Sumant" <Sumant.Patro@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch provides the following:
1. adds support for the next version of Qlogic's iSCSI HBA, qla4032
(PCI Device ID 4032).
2. removes dead code related to topcat chip and renames
qla4010_soft_reset to qla4xxx_soft_reset (minor changes).
Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
On qla4xxx, the driver needs to grab the drvr semaphore provided by
the hardware, prior to issuing a reset. This patches takes care of a
couple of places where it was not being done. In addition there is
minor clean up.
Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
When the aic94xx driver creates ascbs, each ascb is initialized with a
timeout timer. If there are any ascbs left over when the driver is being
torn down, these timers need to be deleted. In particular, we seem to
hit this case when ascbs are issued yet never end up on the done list.
Right now there's a sequencer bug that results in this happening every
so often.
CONTROL PHY commands are typically sent when things are really messed
up with the sequencer; however, any other leftover ascb should produce
loud warnings.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch implements a REQ_DEVICE_RESET handler for the aic94xx
driver. Like the earlier REQ_TASK_ABORT patch, this patch defers the
device reset to the Scsi_Host's workqueue, which has the added benefit
of ensuring that the device reset does not happen at the same time
that the abort tmfs are being processed. After the phy reset, the
busted drive should go away and be re-detected later, which is indeed
what I've seen on both a x260 and a x206m.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Pass the work_struct pointer to the work function rather than context data.
The work function can use container_of() to work out the data.
For the cases where the container of the work_struct may go away the moment the
pending bit is cleared, it is made possible to defer the release of the
structure by deferring the clearing of the pending bit.
To make this work, an extra flag is introduced into the management side of the
work_struct. This governs auto-release of the structure upon execution.
Ordinarily, the work queue executor would release the work_struct for further
scheduling or deallocation by clearing the pending bit prior to jumping to the
work function. This means that, unless the driver makes some guarantee itself
that the work_struct won't go away, the work function may not access anything
else in the work_struct or its container lest they be deallocated.. This is a
problem if the auxiliary data is taken away (as done by the last patch).
However, if the pending bit is *not* cleared before jumping to the work
function, then the work function *may* access the work_struct and its container
with no problems. But then the work function must itself release the
work_struct by calling work_release().
In most cases, automatic release is fine, so this is the default. Special
initiators exist for the non-auto-release case (ending in _NAR).
Signed-Off-By: David Howells <dhowells@redhat.com>
ATAPI devices transfer fixed number of bytes for CDBs (12 or 16). Some
ATAPI devices choke when shorter CDB is used and the left bytes contain
garbage. Block SG_IO cleared left bytes but SCSI SG_IO didn't. This patch
makes SCSI SG_IO clear it and simplify CDB clearing in block SG_IO.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mathieu Fluhr <mfluhr@nero.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Douglas Gilbert <dougg@torque.net>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: <stable@kernel.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Changes the obsolete Scsi_Cmnd to struct scsi_cmnd and remove the trailing
whitespaces.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Resetting the adapter causes the ServeRAID driver to exceed the max time
allowed by the softlock watchdog. Resetting the hardware can easily require
30 or more seconds. To avoid the
"BUG: soft lockup detected on CPU#0!"
result, this patch adds a touch_nmi_watchdog() to the driver's MDELAY macro.
Cc: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Acked-by: Jack Hammer <jack_hammer@adaptec.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch makes some needlessly global functions static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
BusLogic: use kzalloc(), remove cast to/from void*
aic7xxx_old: fix typo in cast
NCR53c406a: ifdef out static built code
fd_mcs: ifdef out static built code
ncr53c8xx: ifdef out static built code
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Revert 15084a4a63 - it caused a
scheduling-inside-spinlock bug.
Cc: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Jack Hammer <jack_hammer@adaptec.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Printk -> sdev_printk change originally from Luben Tuikov
<ltuikov@yahoo.com>. Loglevel changes prompted by Matthew Wilcox
<matthew@wil.cx>.
Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
scsi_assign_lock has been unused for a long time and is a bad idea
in general, so kill it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
I wanted to add some BUG checks to scsi_prep_fn to make sure no one
sends us a non-sg command, but this function is a horrible mess.
So I decided to detangle the function and document what the valid
cases are. While doing that I found that REQ_TYPE_SPECIAL commands
aren't used by the SCSI layer anymore and we can get rid of the code
handling them.
The new structure of scsi_prep_fn is:
(1) check if we're allowed to send this command
(2) big switch on cmd_type. For the two valid types call into
a function to set the command up, else error
(3) code to handle error cases
Because FS and BLOCK_PC commands are handled entirely separate after
the patch this introduces a tiny amount of code duplication. This
improves readabiulity though and will help to avoid the bidi command
overhead for FS commands so it's a good thing.
I've tested this on both sata and mptsas.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
scsi_send_eh_cmnd is the last user of non-sg commands currently.
This patch switches it to a one-element SG list. Also updates the
kerneldoc comment for scsi_send_eh_cmnd to reflect reality while we're
at it.
Test on my mptsas card, but this should get testing with as many
drivers as possible.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch straightens out the code that distinguishes the various escb
opcodes in escb_tasklet_complete so that they can be handled correctly.
It also provides all the necessary code to create a workqueue item that
tells libsas to abort a sas_task.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch adds an external function, sas_abort_task, to enable LLDDs
to abort sas_tasks. It also adds a work_struct so that the actual
work of aborting a task can be shifted from tasklet context (in the
LLDD) onto the scsi_host's workqueue.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch adds an EH done queue to sas_ha, converts the error handling
strategy function and the sas_scsi_task_done functions in libsas to use
the scsi_eh_* commands for error'd commands, and adds checks for the
INITIATOR_ABORTED flag so that we do the right thing if a sas_task has
been aborted by the initiator.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
If a drive reports that no media is present, there's no point in
continuing to ask it about media status. This patch (as696) cuts the
TUR polling short as soon as the drive reports no media instead of
going a full 3 iterations.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch (as810c) copies a minimum of 36 bytes of INQUIRY data, even if
the device claims that not all of them are valid. Often badly behaved
devices put plausible data in the Vendor, Product, and Revision strings but
set the Additional Length byte to a small value. Using potentially valid
data is certainly better than allocating a short buffer and then reading
beyond the end of it, which is what we do now.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix an array overrun spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Fix uses of "&&" where "&" was obviously intended instead.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
XMSTATE_SOL_HDR could be set when the xmit thread tests it, but there may
not be anything on the r2tqueue yet. Move the XMSTATE_SOL_HDR set
before the addition to the queue to make sure that when we pull something
off it it is valid. This does not add locks around the xmstate test or make
that a atmoic_t because this is a fast path and if it is set when we test it
we can handle it there without the overhead. Later on we check the xmitqueue
for all requests with the session lock so we will not miss it.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Some messages from debug_scsi do not have trailing newlines,
making console messages difficult to read. Fix that.
Signed-off-by: Pete Wyckoff <pw@osc.edu>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Unconditionally free crypto state, as it is always allocated during
TCP connection creation. Without this, crypto structures leak and
crc32c module refcounts grow as connections are created and
destroyed.
Signed-off-by: Pete Wyckoff <pw@osc.edu>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
For certain LLDs the sg driver can cause on oops
when the transfer length is large and not a
multiple of PAGE_SIZE.
ChangeLog:
- correct the length of the last scatter gather
list element.
- fix some printk()s that have the wrong function
name.
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Updates the 3ware 9000 driver:
- Free irq handler in __twa_shutdown().
- Serialize reset code.
- Add support for 9650SE controllers.
Signed-off-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Updating DDB0 inside aic94xx driver itself caused SMP command timeout. I
hit this SMP timeout problem twice but I am not able to reproduce it since
then. Here is a fix that retries an SMP command.
Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The patch updates DDB0 in the aic94xx driver itself. It doesn't supply
or use lldd_port_formed field. DDB0 is updated prior to posting
notification to libsas layer.
Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
SCSI_QLA_ISCSI needs to depend on NET to prevent build (link) failures
that are caused by selecting SCSI_ISCSI_ATTRS.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is a cross-port of a similar patch for aic7xxx;
only it's a bit simpler here as we don't support HVD
and all controller actually implement this register.
I hope.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This is a cross-port from aic79xx; we still hit the occasional
BUG_ON in slave_destroy. And again we don't really need the
slave_destroy callback nor the ahc_linux_target structure
at all.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
aic79xx has a special 'iocell' chip which handles the precompensation.
If it's set via DV we should make sure to set the chip correctly, too.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Whenever an external device is resetted we really have to take
care to keep the channel in sync. Just notifying SCSI-ML and retry
is not enough as we have to make sure the SCSI bus is not getting
confused, either.
So whenever we detect an external reset we rewrite the command to
TUR, disable packetized command and notify the internal engine
that an abort has happened. This way we trigger a proper bus
reset sequence and all devices will be renegotiated properly.
Kudos to Justin Gibbs and Luben Tuikov for this idea.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
