Commit Graph

46 Commits

Author SHA1 Message Date
Jesper Juhl
c9475cb0c3 [PATCH] kfree cleanup: drivers/scsi
This is the drivers/scsi/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/scsi/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:01 -08:00
Nishanth Aravamudan
a9a3047dd8 [PATCH] drivers/scsi: fix-up schedule_timeout() usage
Use schedule_timeout_uninterruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:59 -08:00
James.Smart@Emulex.Com
eb66fff7d9 [SCSI] lpfc: Change version number to 8.1.0
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:33:14 -05:00
James.Smart@Emulex.Com
73797e31b5 [SCSI] lpfc 8.1.0 : Add owner field to struct pci_driver
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:32:49 -05:00
James.Smart@Emulex.Com
0bd4ca25ad [SCSI] lpfc: Fix eh_ return codes for commands
Return FAILED from eh_ routines if command(s) is(are) not completed

There were scenarios where we may have returned from the error
handlers prior to all affected commands being flushed to the midlayer.
Add changes to ensure this doesn't happen.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:31:48 -05:00
James.Smart@Emulex.Com
4a0dfcdefb [SCSI] lpfc: Remove unneeded IOCB_t * cast
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:31:05 -05:00
James.Smart@Emulex.Com
a784efbff7 [SCSI] lpfc: Adjust lpfc_scsi_buf allocation
Adjust lpfc_scsi_buf allocation to account for lun_queue_depth and
error handling

Under high load and high duress, the error handler could steal some
command resources from the normal i/o path. Rework to allocate
additional resources to avoid this scneario.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:30:12 -05:00
James.Smart@Emulex.Com
68876920f4 [SCSI] lpfc: Replace lpfc_sli_issue_iocb_wait_high_priority
Replace lpfc_sli_issue_iocb_wait_high_priority with lpfc_sli_issue_iocb_wait.

Simplify code paths, as there really wasn't a "priority"

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:29:09 -05:00
James Bottomley
604a3e3042 [SCSI] lpfc: Fix for "command completion for iotax x?? not found"
From: James Smart <James.Smart@emulex.com>

There were scenarios where the error handlers could reuse an iotag
value of an active io.  Remove all possibility of this by
pre-assigning iotag resources to command resources.

Signed-off-by: James Smart <James.Smart@emulex.com>

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:28:33 -05:00
James.Smart@Emulex.Com
21568f5387 [SCSI] lpfc: Remove RPI hash from the driver
Table was not providing a lot of value and injected a couple of
errors. Removed it and made functionality inline.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:22:50 -05:00
James.Smart@Emulex.Com
93a20f7445 [SCSI] lpfc: Restore HEX safe bahavior of the sysfs xxx_store functions.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:21:26 -05:00
James.Smart@Emulex.Com
f91b392c4d [SCSI] lpfc: Fix for "Unknown IOCB command Data: x0 x3 x0 x0"
Fix for "Unknown IOCB command Data: x0 x3 x0 x0" messages and
inability to see devices

On some platforms, the host-memory based ring mgmt area was not
zero. Also, driver wasn't manipulating the entire 32bits of the ring
pointers.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:19:52 -05:00
James.Smart@Emulex.Com
09703d38d4 [SCSI] lpfc: Fix comments for nodev_tmo
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:18:30 -05:00
James.Smart@Emulex.Com
7bcbb7527f [SCSI] lpfc: Add range checking for attributes passed as options at load time.
Reuse macros defined for sysfs store callbacks in the initialization
code in order to enforce the same range checking.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:12:49 -05:00
James.Smart@Emulex.Com
755c0d06c5 [SCSI] lpfc: Return -EINVAL, -EPERM, and -EIO instead of 0 from sysfs callbacks
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:11:40 -05:00
James.Smart@Emulex.Com
964b77e776 [SCSI] lpfc: Update to Emulex hba model names
Update adapter names to match Emulex naming conventions.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:10:44 -05:00
James.Smart@Emulex.Com
433c357956 [SCSI] lpfc: Cleanup code in lpfc_get_stats().
Cleanup white spaces in argument calls & initializations, prune if
statements, remove casting and remove redundant if checks.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:09:58 -05:00
James.Smart@Emulex.Com
19a7b4aebf [SCSI] update fc_transport for removal of block/unblock functions
We recently went back to implement a board reset. When we perform the
reset, we wanted to tear down the internal data structures and rebuild
them. Unfortunately, when it came to the rport structure, things were
odd. If we deleted them, the scsi targets and sdevs would be
torn down. Not a good thing for a temporary reset. We could block the
rports, but we either maintain the internal structures to keep the
rport reference (perhaps even replicating what's in the transport),
or we have to fatten the fc transport with new search routines to find
the rport (and deal with a case of a dangling rport that the driver
forgets).

It dawned on me that we had actually reached this state incorrectly.
When the fc transport first started, we did the block/unblock first, then
added the rport interface. The purpose of block/unblock is to hide the
temporary disappearance of the rport (e.g. being deleted, then readded).
Why are we making the driver do the block/unblock ? We should be making
the transport have only an rport add/delete, and the let the transport
handle the block/unblock.

So... This patch removes the existing fc_remote_port_block/unblock
functions. It moves the block/unblock functionality into the
fc_remote_port_add/delete functions.  Updates for the lpfc driver are
included. Qlogic driver updates are also enclosed, thanks to the
contributions of Andrew Vasquez. [Note: the qla2xxx changes are
relative to the scsi-misc-2.6 tree as of this morning - which does
not include the recent patches sent by Andrew]. The zfcp driver does
not use the block/unblock functions.

One last comment: The resulting behavior feels very clean. The LLDD is
concerned only with add/delete, which corresponds to the physical
disappearance.  However, the fact that the scsi target and sdevs are
not immediately torn down after the LLDD calls delete causes an
interesting scenario... the midlayer can call the xxx_slave_alloc and
xxx_queuecommand functions with a sdev that is at the location the
rport used to be. The driver must validate the device exists when it
first enters these functions. In thinking about it, this has always
been the case for the LLDD and these routines. The existing drivers
already check for existence. However, this highlights that simple
validation via data structure dereferencing needs to be watched.
To deal with this, a new transport function, fc_remote_port_chkready()
was created that LLDDs should call when they first enter these two
routines. It validates the rport state, and returns a scsi result
which could be returned. In addition to solving the above, it also
creates consistent behavior from the LLDD's when the block and deletes
are occuring.

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 21:20:07 -05:00
Andrew Vasquez
91ca7b01ec [SCSI] Add an 'Issue LIP' device attribute in fc_transport class
Ok, here's a patch to add such a common API for fc transport users.
Relevant LLD changes (lpfc and qla2xxx) also present.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 19:35:25 -05:00
Al Viro
c53033f6b0 [PATCH] gfp_t: drivers/scsi
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-28 08:16:50 -07:00
Andrew Morton
68ce1eb540 [SCSI] lpfc build fix
gcc-2.95.x doesn't do anonymous unions.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-21 16:25:46 -05:00
Andrew Vasquez
f631b4be76 [SCSI] lpfc: use wwn_to_u64() transport helper
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Acked-by: Smart, James <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-10 11:11:48 -05:00
James.Smart@Emulex.Com
9909b79e3d [SCSI] lpfc driver 8.0.30 : update version to 8.0.30
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:09:32 -05:00
James.Smart@Emulex.Com
918865230e [SCSI] lpfc driver 8.0.30 : convert to use of int_to_scsilun()
Replace use of lpfc_put_lun with midlayer's int_to_scsilun

Remove driver's local definition of lpfc_put_lun (which converts an
int back to a 64-bit LUN) and replace it's use with the recently added
int_to_scsilun function provided by the midlayer.

Note: Embedding midlayer structure in our structure caused
need for more files to include midlayer headers.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:09:01 -05:00
James.Smart@Emulex.Com
ea84c3f74d [SCSI] lpfc driver 8.0.30 : dev_loss and nodev timeouts
Fix handling of the dev_loss and nodev timeouts.

Symptoms: when remote port disappears for a period of time longer then
either nodev_tmo or dev_loss_tmo, the lpfc driver worker thread will
stall removing that remote port.

Cause: removing remote port involves un-blocking and sync-ing
corresponding block device queue. But corresponding node in the lpfc
driver is still in the NPR(?node port recovery?) state and mid-layer
gets SCSI_MLQUEUE_HOST_BUSY as a return value when it is trying to call
queuecommand() with command for that node (AKA remote port)

Fix: Instead of returning SCSI_MLQUEUE_HOST_BUS from queuecommand() for
nodes in NPR states complete it with retry-able error code  DID_BUS_BUSY

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:54 -05:00
James.Smart@Emulex.Com
f888ba3ce7 [SCSI] lpfc driver 8.0.30 : fix get_stats panic
Fix panic in lpfc_get_stats()

Symptoms: Panic on sysfs stats access

Cause: In lpfc_get_stats() we are writing to memory that we do not
own.

Fix: Fix our stats structure allocation. Embed phba->link_stats in
struct lpfc_hba and stop treating it like rogue structure.

Note: Embedding midlayer/transport structure in our structure caused
need for more files to include midlayer/transport headers.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:48 -05:00
James.Smart@Emulex.Com
69859dc477 [SCSI] lpfc driver 8.0.30 : task mgmt bit clearing
Clear task management bits when preparing SCSI commands

In lpfc_scsi_prep_cmnd, clear the task management bits (fcpCntl2 member
in the fcp_cmd structure) when preparing regular SCSI commands.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:40 -05:00
James.Smart@Emulex.Com
8cbdc5fffa [SCSI] lpfc driver 8.0.30 : fix lip/cablepull panic
Fix panic on lip and cable pull

Symptoms: Panic on lip or cable pull

Cause: Use after free of nlp in lpfc_nlp_remove()

Fix: Do not make FC transport calls after a node is removed. Transport
calls are disabled by ignoring the initial delete transition.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:30 -05:00
James.Smart@Emulex.Com
483f05f013 [SCSI] lpfc driver 8.0.30 : fix iocb reuse initialization
IOCB BDE not getting fully initialized during reuse

Symptoms: Driver gets Status 3 and Reason 0x13 on IOCB completions.

Cause: The IOCB bpl.bdeSize and bdeFlags are not getting initialized on reuse.

Fix: Reinitialize these fields in prep_dma each time an IOCB is used.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:13 -05:00
Olaf Hering
44456d37b5 [PATCH] turn many #if $undefined_string into #ifdef $undefined_string
turn many #if $undefined_string into #ifdef $undefined_string to fix some
warnings after -Wno-def was added to global CFLAGS

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:08 -07:00
James.Smart@Emulex.Com
eda912e34a [SCSI] lpfc: Change version to 8.0.29.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 19:08:56 -05:00
James.Smart@Emulex.Com
c44ce17374 [SCSI] lpfc: Update copyright notices
Update copyright notice text and include year 2005.

Add Copyright notice for Christoph Hellwig to several files: lpfc.h
lpfc_attr.c lpfc_els.c lpfc_hbadisc.c lpfc_init.c lpfc_mbox.c
lpfc_mem.c lpfc_nportdisc.c lpfc_scsi.c lpfc_sli.c

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 19:08:29 -05:00
James.Smart@Emulex.Com
5542134f61 [SCSI] lpfc: Remove $Id$ keyword strings.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 19:06:16 -05:00
James.Smart@Emulex.Com
2501322eee [SCSI] lpfc: Fix ADISC completion incorrectly putting initiators on mapped list
Symptom - An unmapped node (initiator) that goes away in a situation
such as cable pull, comes back as a mapped node.  Fix - On ADISC
completion, put a list on the mapped list only if it is a FCP_TARGET.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 18:58:48 -05:00
James.Smart@Emulex.Com
5eb95af086 [SCSI] lpfc: Add completion handler to the abort iocbs
Add completion handler to the abort iocbs to close a hole where we
could reuse an iotag.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 18:57:22 -05:00
James.Smart@Emulex.Com
1f679cafd2 [SCSI] lpfc: Fix LS_RJT never sent by lpfc_els_unsol_event()
lpfc_els_unsol_event() checks rjt_err to determine is LS_RJT should be
sent.  However, rjt_err was set to LSEXP_NOTHING_ELSE (which is 0) in
cases where an LS_RJT should be sent, so rjt_err was never true.
Change lpfc_els_unsol_event() to set rjt_err to 1 when LS_RJT should
be sent.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 18:55:23 -05:00
James.Smart@Emulex.Com
06325e7459 [SCSI] lpfc: Add LP6000 PCI ID
Fix driver not seeing LP6000.  Fix: add PCI id to the pci_device_id
table and a short description for the HBA in get_hba_model_desc().
Also add a default clause to the switch statement that parses the
various PCI ID's.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 17:18:52 -05:00
James.Smart@Emulex.Com
564b296083 [SCSI] lpfc: Set max_sectors in host template
Add max_sectors to the driver host template and initialize it with
0xFFFF since the driver has no limitations on the size a transfer
contained by a scsi command and that fits within the sg_tablesize
provisioned by the driver.  This fixes a performance issue seen in
some configurations.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 17:07:57 -05:00
James.Smart@Emulex.Com
87f6eaffd7 [SCSI] lpfc: Fix error loading on sparc
Bug reported via SourceForge - lpfc does not load on sparc.  The lpfc
driver must byteswap all FCP IOCBs to recover the data into cpu native
format.

Also correct issue of "iotag not found" messages

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 17:07:03 -05:00
James.Smart@Emulex.Com
db468d108a [SCSI] lpfc: Fixes in mbox_timeout_handler
Analysis:

Timeout of READ_SPARM64 causes call to lpfc_mbox_timeout_handler which
reads psli->mbox_active to determine the timeout mbox.  Timeout
handler then NULL's psli->mbox_active and calls
lpfc_mbx_cmpl_read_sparam(), which on timeout condition, calls
link_down().  link_down() now calls disc_done() which calls
mbox_timeout_hander() again since WORKER_MBOX_TMO is still set, which
goes back to read psli->mbox_active which is already NULL'ed.

Remove redundant if statement in lpfc_mbox_timeout_handler.  pmbox is
assigned psli->mbox_active so there is no need to check if it actually
equals psli->mbox_active.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 17:05:32 -05:00
James.Smart@Emulex.Com
6e8215e488 [SCSI] Fix issue where all hosts log nodev message for other initiators
Fix issue where all hosts connected to SAN get spammed with nodev
message when other initiators go away.  Display nodev message only
when FC targets go away.  However this behavior will be overridden if
LOG_DISCOVERY is set.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 17:04:06 -05:00
James.Smart@Emulex.Com
4cc2da1d84 [SCSI] lpfc: hgp/pgp cleanups
From: Christoph Hellwig <hch@lst.de>:

 - rename PGP/HPH to lpfc_pgp/lpfc_hgp
 - use __le32 types for the members to start fixing sparse -Wbitwise
   issues
 - remove lpfc_sli.MBhostaddr, we can always use the pointer from
   SLI2_DESC directly

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 16:58:16 -05:00
Jeff Garzik
68b3aa7c98 [SCSI] allow sleeping in ->eh_bus_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:05:10 -05:00
Jeff Garzik
94d0e7b805 [SCSI] allow sleeping in ->eh_device_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:05:03 -05:00
Jeff Garzik
8fa728a268 [SCSI] allow sleeping in ->eh_abort_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:04:55 -05:00
dea3101e0a lpfc: add Emulex FC driver version 8.0.28
From: 	James.Smart@Emulex.Com

Modified for kernel import and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:50:53 -05:00