Commit Graph

45 Commits

Author SHA1 Message Date
Andrew Vasquez ac280b670e [SCSI] qla2xxx: Add asynchronous-login support.
ISPs which support this feature include 23xx and above.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-09-05 09:41:57 -05:00
Andrew Vasquez cf53b069f5 [SCSI] qla2xxx: Generalize srb structure usage.
Lay groundwork for adding alternative asynchronous operations by
generalize and extending the SRB structure.  This allows for
follow-on patches to add support for:

- Asynchronous logins.
- ELS/CT passthru requests.
- Loopback requests.
- Non-blocking mailbox commands (ABTS, Task Management, etc).

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-09-05 09:41:55 -05:00
Anirban Chakraborty 7163ea8151 [SCSI] qla2xxx: Fix to ensure driver works in sinlge queue mode if multiqueue fails
When the multiqueue mode fails to work, the driver falls back on single
queue mode. This ensures that the firmware is reinitialized with single
queue options and all the resources are readjusted accordingly.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:52:20 -05:00
Anirban Chakraborty 59e0b8b088 [SCSI] qla2xxx: Correct NULL pointer bug in cpu affinity mode.
This patch fixes a NULL pointer bug that occurs when IO is being
carried out on a vport for which the cpu affinity mode is turned on.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-08 14:46:44 -05:00
Anirban Chakraborty 67c2e93ae7 [SCSI] qla2xxx: Remove reference to request queue from scsi request block.
srbs used to maintain a reference to the request queue on which
it was enqueued. This is no longer required as the request queue
pointer is now maintained in the scsi host that issues the srb.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:08 -05:00
Anirban Chakraborty 68ca949cdb [SCSI] qla2xxx: Add CPU affinity support.
Set the module parameter ql2xmultique_tag to 1 to enable this
feature. In this mode, the total number of response queues
created is equal to the number of online cpus. Turning the block
layer's rq_affinity mode on enables requests to be routed to the
proper cpu and at the same time it enables completion of the IO
in a response queue that is affined to the cpu in the request
path.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:08 -05:00
Anirban Chakraborty 2afa19a937 [SCSI] qla2xxx: Add QoS support.
Set the number of request queues to the module paramater
ql2xmaxqueues.  Each vport gets a request queue. The QoS value
set to the request queues determines priority control for queued
IOs. If QoS value is not specified, the vports use the default
queue 0.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:07 -05:00
Andrew Vasquez 08029990b2 [SCSI] qla2xxx: Refactor request/response-queue register handling.
Original code used an overabundance of indirect pointers to
function helpers.  Instead, the driver can exploit the immutable
properties of a queue's ISP-association and ID, which are both
known at queue initialization-time.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-03 09:22:44 -05:00
Andrew Vasquez 444786d7fd [SCSI] qla2xxx: Use proper request/response queues with MQ instantiations.
Original code would inadvertanly place I/Os on the default
request-queue.  Also, correctly pass in the proper MSI-X vector
during response-queue initialization.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-07 15:51:20 -06:00
Anirban Chakraborty 17d98630a4 [SCSI] qla2xxx: changes in multiq code
Following changes have been made:
 1. Scan outstanding commands only in the queue where it is submitted
 2. Update queue registers directly in the fast path
 3. Queue specific BAR is remapped only for multiq capable adapters

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:35 -06:00
Anirban Chakraborty 73208dfd7a [SCSI] qla2xxx: add support for multi-queue adapter
Following changes have been made.
1. qla_hw_data structure holds an array for request queue pointers,
and an array for response queue pointers.
2. The base request and response queues are created by default.
3. Additional request and response queues are created at the time of vport
creation. If queue resources are exhausted during vport creation, newly
created vports use the default queue.
4. Requests are sent to the request queue that the vport was assigned
in the beginning.
5. Responses are completed on the response queue with which the request queue
is associated with.

[fixup memcpy argument reversal spotted by davej@redhat.com]
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:33 -06:00
Anirban Chakraborty e315cd28b9 [SCSI] qla2xxx: Code changes for qla data structure refactoring
Following changes have been made:

1. Outstanding commands are based on a request queue, scsi_qla_host
   does not maintain it anymore.

2. start_scsi is accessed via isp_ops struct instead of direct
   invocation.

3. Interrupt registrations are done using response queue instead of
   device id.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:16 -06:00
Bjorn Helgaas cc3ef7bc40 [SCSI] qla2xxx: Fix "occured" spelling errors.
Fix "occured" spelling errors.  Most of these are in comments, which
I wouldn't normally bother with, but a couple are in printks, which
irritate me more.  So I just fixed them all at the same time.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:18 -05:00
Harish Zunjarrao 49fd462a1b [SCSI] qla2xxx: Add input/output byte-count statistics.
Currently Firmware does not have counters for input megabytes and
output megabytes, therefore driver counts these values depending
on the status of the scsi command and direction of the command.
The values are exported in the FC_HOST path.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:16 -05:00
Andrew Vasquez c9c5ced90a [SCSI] qla2xxx: Additional NPIV corrections.
Minor fixes addressing:
- rport managements during vport deletion.
- acquire proper physical-ha during qla24xx_abort_command() and
  qla24xx_queuecommand()
- do not needlessly acquire the pha for non-NPIV capable ISPs.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-26 15:31:30 -04:00
Seokmann Ju 246de42cfc [SCSI] qla2xxx: Always aquire the parent's hardware_lock.
While issuing a marker, manipulating the request/response queues
and modifying the outstanding command array.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-26 15:14:40 -04:00
Andrew Vasquez 587f4cae4a [SCSI] qla2xxx: Cruft cleanup of functions and structures.
Strip unused (DEBUG-ONLY) enabled functions, inlines, useless
wrappers, and unused DPC flags from the code.  Another step in
the migration towards a cleaner (less-crusty) driver.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:14 -05:00
Andrew Vasquez 01e58d8eac [SCSI] qla2xxx: Update copyright banner.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 12:19:11 -05:00
Andrew Vasquez a3a63d55a4 [SCSI] qla2xxx: Defer explicit interrupt-polling processing to init-time scenarios.
As the intermixing may cause issues where HCCR bits could be
cleared inappropriately during MSI/MSI-X interrupt handling.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-23 15:53:41 -04:00
Andrew Vasquez 700ca0e701 [SCSI] qla2xxx: Cleanup several 'sparse' warnings.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-12 14:50:26 -04:00
Andrew Vasquez fd34f55694 [SCSI] qla2xxx: Re-factor isp_operations to static structures.
In preparation for new ISP types.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 09:24:22 -05:00
Andrew Vasquez e428924ccd [SCSI] qla2xxx: Generalize FW-Interface-2 support.
In preparation for new ISP types.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 08:59:09 -05:00
Seokmann Ju 2c3dfe3f6a [SCSI] qla2xxx: add support for NPIV
Following patch adds support for NPIV (N-Port ID Virtualization) to the
qla2xxx.

- supported within switched-fabric topologies only.
- supports up to 63 virtual ports on each physical port.

Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-14 19:08:05 -05:00
FUJITA Tomonori 385d70b4e2 [SCSI] qla2xxx: 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: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-31 12:23:49 -05:00
Shyam Sundar b797b6de9d [SCSI] qla2xxx: Correct endianess problem while issuing a Marker IOCB on ISP24xx.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 11:29:45 -05:00
Adrian Bunk 413975a0f1 [SCSI] qla2xxx: make some more functions static
Make 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>
2006-06-30 21:34:18 -05:00
Andrew Vasquez 75bc419070 [SCSI] qla2xxx: Drop unused driver cruft.
- structure definitions.
- structure members.
- #define's.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-20 09:43:22 -05:00
andrew.vasquez@qlogic.com 044cc6c8ec [SCSI] qla2xxx: Add ISP54xx support.
Chip is similar in form to our ISP24xx offering.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-12 09:38:03 -06:00
andrew.vasquez@qlogic.com 0d4be1240b [PATCH] qla2xxx: Correct lun assignment during IOCB submission.
4gb products require an IOCB's FCP-LUN to be formatted in
wire-format prior to submission.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-07 10:54:07 -06:00
James Bottomley 72df8325f4 [SCSI] qla2xxx: fix unnecessary activation of blk tag queue
From: 	'Andrew Vasquez' <andrew.vasquez@qlogic.com>

Drop scsi_populate_tag_msg() interrogation.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 14:41:19 -05:00
Andrew Vasquez fa90c54f6d [SCSI] qla2xxx: Update license.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 11:53:23 -05:00
Andrew Vasquez 661c3f6cc3 [SCSI] qla2xxx: Use midlayer's int_to_scsilun() function.
While populating command type 6 and 7 IOCBs.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 11:52:33 -05:00
Andrew Vasquez 4fdfefe529 [SCSI] qla2xxx: Add support to dynamically enable/disable ZIO.
ISP23xx and ISP24xx chips have support for an adaptive
method of posting SCSI command completions for multiple SCSI
commands during a single system interrupt.

SCSI commands are placed on the system response queue
without interrupting the host until 1) a delay timer
expires; or 2) a SCSI command completes with an error.

As long as the host software (qla2xxx) services the response
queue for completions (this polling is done during
queuecommand()) within the 'delay timer' period, the
firmware will not generate system interrupt.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 11:52:11 -05:00
Andrew Vasquez 131736d34e [SCSI] qla2xxx: Remove redundant call to pci_unmap_sg().
In a corner-case failure where the request-q does not
contain enough entries for a given request, pci_unmap_sg()
would be called twice.  Remove direct call and let the
failure-path logic handle the unmapping.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-04 19:53:28 -05:00
Linus Torvalds db776a14f3 Fix compiler warning in qla_iocb.c
Remove bogus initialization that was re-done (correctly) later.
2005-07-26 14:50:02 -07:00
Andrew Vasquez ae91193cd5 [SCSI] qla2xxx: Update copyright banner.
Update copyright banner.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 11:12:12 -04:00
Andrew Vasquez fa2a1ce53d [SCSI] qla2xxx: Code scrubbing.
Code scrubbing.

 - Remove trailing whitespace from driver files.
 - Remove unused #defines and inlines.
 - Standardize on C comments (// -> /* */)

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 11:03:15 -04:00
Andrew Vasquez 2b6c0cee90 [SCSI] qla2xxx: Add ISP24xx IOCB manipulation routines.
Add ISP24xx IOCB manipulation routines.

Add appropriate glue-code for ISP24xx support while
manipulting IOCB packets.  Add an ISP24xx specific
'start_scsi' routine due to command-type-7 layout
changes.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 11:00:07 -04:00
Andrew Vasquez 3d71644cf9 [SCSI] qla2xxx: Add ISP24xx definitions.
Add ISP24xx definitions.

Add requisite structure definitions and #define's for ISP24xx
support.  Also drop volatile modifiers from device_reg_* register
layouts as the members are never really accessed, only their
offsets within the layout are used during reads and writes.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 10:54:46 -04:00
Andrew Vasquez abbd8870b9 [SCSI] qla2xxx: Factor-out ISP specific functions to method-based call tables.
Factor-out ISP specific functions to method-based call tables.

In anticipation of ISP24xx/ISP25xx support, factor-out ISP
specific functions into a method-based call table.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-14 10:47:30 -04:00
Andrew Vasquez 354d6b2196 [SCSI] remove some dead code in qla2xxx
Original from: Christoph Hellwig <hch@lst.de>

Modified and
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20 12:53:25 -05:00
83021920e7 [PATCH] qla2xxx: cleanup DMA mappings...
Don't use cmd->request->nr_hw_segments as it may not be initialized
  (SG_IO in particular bypasses anything that initializes this and just
  uses scsi_do_req to insert a scsi_request directly on the head of the
  queue) and a bogus value here can trip up the checks to make sure that
  the number of segments will fit in the queue ring buffer, resulting in
  commands that are never completed.

  Fix up several issues with PCI DMA mapping and failure to check return
  values on the mappings.

  Make the check for space in the ring buffer happen after the DMA mapping
  is done since any checks done before the mapping has taken place are
  bogus.

  Doug Ledford <dledford@redhat.com>.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:48:12 -05:00
bdf796210e [PATCH] qla2xxx: remove lun discovery codes...
Remove internal lun discovery routines and support
structures.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:47:46 -05:00
f4f051ebb4 [PATCH] qla2xxx: remove internal queuing...
Remove internal command queuing from the driver.  As is, this
driver cannot tolerate cable-pulls as I/Os will begin to fail
by the upper layers.

     o Should be used in conjuction with the
       11-fc_rport_adds_2.diff patch.
     o Removes qla_listops.h file -- no longer needed.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:46:53 -05:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00