Commit Graph

324 Commits

Author SHA1 Message Date
Chad Dupuis 97ea702bac [SCSI] qla2xxx: Fix build errors related to invalid print fields on some architectures.
Fixes some build warnings such as:
drivers/scsi/qla2xxx/qla_attr.c:162:6: warning: format '%lx' expects argument of
type 'long unsigned int', but argument 6 has type 'size_t'"
and
drivers/scsi/qla2xxx/qla_init.c:5198:7: warning: format '%lx' expects argument
of type 'long unsigned int', but argument 5 has type 'uint32_t' [-Wformat]

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-19 15:10:20 -07:00
Armen Baloyan 4440e46d5d [SCSI] qla2xxx: Add IOCB Abort command asynchronous handling.
Send aborts to the firmware via the request/response queue mechanism.

Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:53 -07:00
Armen Baloyan faef62d134 [SCSI] qla2xxx: Fix Task Management command asynchronous handling
- Fix interpreting the wrong IOCB type for task management
functions in the response path.
- Merge the task management function handling for various adapters.

Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:52 -07:00
Chad Dupuis f73cb695d3 [SCSI] qla2xxx: Add support for ISP2071.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:50 -07:00
Joe Carnuccio 1ca60e3b0d [SCSI] qla2xxx: Enable the Flash Access Control (FAC) mailbox command.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:17:49 -07:00
Chad Dupuis 3b6e5b9d5f [SCSI] qla2xxx: Honor execute firmware failures.
If the execute firmware command fails we do not stop the rest of the
initialization process which will continue to fail so if we encounter an error
simply short circuit the process.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-19 07:38:56 -08:00
Joe Carnuccio fabbb8df8e [SCSI] qla2xxx: Add missing FCP statistics to sysfs interface.
Add the missing FCP statistics to sysfs.
Add reset FCP statistics functionality via sysfs.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:28:04 -07:00
Joe Carnuccio 1ae47cf300 [SCSI] qla2xxx: Reconfigure thermal temperature.
For supported ISPS, Read asic temperature by calling the
GET PARAMS (type C) mailbox command.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:28:03 -07:00
Joe Carnuccio c46e65c7e5 [SCSI] qla2xxx: Add setting of driver version string for vendor application.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:28:02 -07:00
Atul Deshmukh 7ec0effd30 [SCSI] qla2xxx: Add support for ISP8044.
[jejb: checkpatch fixes]
Signed-off-by: Atul Deshmukh <atul.deshmukh@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:28:00 -07:00
Oleksandr Khoshaba 7b83355890 [SCSI] qla2xxx: Print some variables to hexadecimal string via %*phN format
The patch changes a specifier used to output some variables. Instead of using
stack for each byte the '%*ph[CN]' allows to take a one pointer and prints
entire buffer as a hexadecimal string with the separator ':' or ''.

Signed-off-by: Oleksandr Khoshaba <Oleksandr.Khoshaba@gmail.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-03 07:27:59 -07:00
Bart Van Assche 6593d5bdbd [SCSI] qla2xxx: Remove dead code in qla2x00_configure_hba()
At the end of qla2x00_configure_hba() we know that rval == QLA_SUCCESS.
Hence remove the dead code.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-08 17:27:07 +01:00
Giridhar Malavali 8ae6d9c7eb [SCSI] qla2xxx: Enhancements to support ISPFx00.
[jejb: fix up checkpatch issues]
Signed-off-by: Andrew Vazquez <andrew.vasquez@qlogic.com>
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-11 15:42:04 -07:00
Arun Easi 00876ae85b [SCSI] qla2xxx: Fix crash during firmware dump procedure.
System crashes, in initiator mode operation, with
qla2xxx_copy_atioqueues() in stack trace when firmware dump is
attempted.

Check for atio_q_length alone does not indicate if atio_ring is
allocated, make explicit check of atio_ring to avoid the crash.

Applicable to ISP24xx, ISP25xx, ISP81xx & ISP83xx line of HBAs.

Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06 11:30:16 +01:00
Joe Carnuccio e9f4f41807 [SCSI] Revert "qla2xxx: Add setting of driver version string for vendor application."
The original patch was not covering all the adapters and firmwares.

This commit reverts 3a11711ad0.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-06 11:29:14 +01:00
Joe Carnuccio fe52f6e121 [SCSI] qla2xxx: Integrate generic card temperature with mezz card temperature.
Give priority to I2C thermal.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 14:39:27 +00:00
Chad Dupuis bb4cf5b73b [SCSI] qla2xxx: Don't process RSCNs for a vport on the same physical adapter.
Currently,the driver is processes RSCNs for each new NPIV ports that is created.
Processing the RSCN includes a name server query to see what has changed at the
name server side.  The name server query is performed by the physical port and
each virtual port on the physical adapter (since the RSCN is passed to each
virtual port for processing).  As the number of virtual ports being created
increases, this causes a lot of traffic and busies the firmware.

Processing the RSCN for a virtual port we already have a priori knowledge of is
not necessary so check the 24-bit fabric ID of the RSCN entry and skip
processing it if the RSCN is for a virtual port we already know about.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 14:31:24 +00:00
Joe Carnuccio 3a11711ad0 [SCSI] qla2xxx: Add setting of driver version string for vendor application.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 14:28:10 +00:00
Joe Carnuccio 827210ba2a [SCSI] Revert "[SCSI] qla2xxx: Optimize existing port name server query matching."
This reverts commit c0822b63cc.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 14:04:01 +00:00
Joe Carnuccio e452ceb636 [SCSI] Revert "[SCSI] qla2xxx: Avoid losing any fc ports when loop id's are exhausted."
This reverts commit 4dc77c36f8.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 12:55:45 +00:00
Saurav Kashyap 1e63395ce0 [SCSI] qla2xxx: Update the copyright information.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 12:49:22 +00:00
Chad Dupuis b00ee7d770 [SCSI] qla2xxx: Unload hangs after issuing BSG commands to vport.
BSG code path increments ref count in the send path, but does not
decrement in the return path leading to hang during unload of the
driver.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 12:35:40 +00:00
Joe Carnuccio 61e1b269be [SCSI] qla2xxx: Do link initialization on get loop id failure.
To avoid continually doing ISP resets when get loop id fails to
obtain the adapter loop id, first try to do a link initialization.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 12:31:36 +00:00
Giridhar Malavali e9454a883b [SCSI] qla2xxx: Update the FTP site references in the driver sources.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 12:30:48 +00:00
Arun Easi aa230bc55c [SCSI] qla2xxx: Enable target mode support for ISP83xx.
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 11:32:12 +00:00
Chad Dupuis 8d93f55022 [SCSI] qla2xxx: Determine the number of outstanding commands based on available resources.
Base the number of outstanding requests the driver will keep track of on the
available resources instead of being hard-coded.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 11:28:49 +00:00
Joe Carnuccio d0297c9a3f [SCSI] qla2xxx: Parameterize the link speed of hba rather than fcport.
Parameterize qla2x00_get_link_speed_str() to be generic on link speed.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 15:14:48 +00:00
Joe Carnuccio 1f93da52a2 [SCSI] qla2xxx: Move marking fcport online ahead of setting iiDMA speed.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 15:12:52 +00:00
Joe Carnuccio 4ea2c9c7b3 [SCSI] qla2xxx: Add acquiring of risc semaphore before doing ISP reset.
Try to acquire the semaphore; if semaphore is hung then acquire it by force.
The ISP reset clears the semaphore, thereby implicitly releasing it.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 15:11:16 +00:00
Saurav Kashyap fa4926306a [SCSI] qla2xxx: Fix for warnings reported by sparse.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 11:14:10 +00:00
Chad Dupuis 3aa28e42a5 [SCSI] qla2xxx: Remove spurious taking of ha->vport_slock spinlock.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 09:42:21 +00:00
Andrew Vasquez 5b93903844 [SCSI] qla2xxx: Clear unsupported 'states' during Get-FW-State queries.
Rather than returning stale mailbox values.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-30 09:40:59 +00:00
Jiri Kosina f24b5cb818 [SCSI] qla2xxx: fix potential deadlock on ha->hardware_lock
Lockdep reports:

=== [ cut here ] ===
 =========================================================
 [ INFO: possible irq lock inversion dependency detected ]
 3.6.0-0.0.0.28.36b5ec9-default #1 Not tainted
 ---------------------------------------------------------
 qla2xxx_1_dpc/368 just changed the state of lock:
  (&(&ha->vport_slock)->rlock){+.....}, at: [<ffffffffa009b377>] qla2x00_configure_hba+0x197/0x3c0 [qla2xxx]
 but this lock was taken by another, HARDIRQ-safe lock in the past:
  (&(&ha->hardware_lock)->rlock){-.....}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&ha->vport_slock)->rlock);
                               local_irq_disable();
                               lock(&(&ha->hardware_lock)->rlock);
                               lock(&(&ha->vport_slock)->rlock);
  <Interrupt>
    lock(&(&ha->hardware_lock)->rlock);
=== [ cut here ] ===

Fix the potential deadlock by disabling IRQs while holding ha->vport_slock.

Reported-and-tested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 12:27:25 +01:00
Arun Easi 9e522cd8f3 [SCSI] qla2xxx: T10 DIF - ISP83xx changes.
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:54 +04:00
Saurav Kashyap 409ee0fe14 [SCSI] qla2xxx: Restrict nic core reset to one function for mctp.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:53 +04:00
Saurav Kashyap 2a8593f80d [SCSI] qla2xxx: Get fcal position map should not be called for p2p topology.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:53 +04:00
Chad Dupuis 5ffd3a52bf [SCSI] qla2xxx: Set Maximum Read Request Size to 4K.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:53 +04:00
Saurav Kashyap 45980cc22e [SCSI] qla2xxx: Do not restrict the number of NPIV ports for ISP83xx.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:51 +04:00
Andrew Vasquez c74d88a468 [SCSI] qla2xxx: Fail initialization if unable to load RISC code.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:51 +04:00
Saurav Kashyap 711aa7f722 [SCSI] qla2xxx: Dont call nic restart firmware if it is already active and running.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:50 +04:00
Santosh Vernekar a6171297c2 [SCSI] qla2xxx: Perform ROM mbx cmd access only after ISP soft-reset during f/w recovery.
Signed-off-by: Santosh Vernekar <santosh.vernekar@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:49 +04:00
Arun Easi 370d550ea4 [SCSI] qla2xxx: Fix for continuous rescan attempts in arbitrated loop topology.
Stale information in the temporary fcport created in
qla2x00_configure_local_loop() causes qla2x00_get_port_database() call
to fail. This reschedules scan, which gets stuck continuously in the
rescheduling-of-scan loop due to the failure.

Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:49 +04:00
Chad Dupuis 46152ceb7c [SCSI] qla2xxx: Update the driver copyright.
Update the driver copyright from 2003-2011 to 2003-2012.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:49 +04:00
Chad Dupuis 8fcd6b8b0f [SCSI] qla2xxx: Changes for ISP83xx loopback support.
Minor changes to support loopback functionality with ISP83xx CNAs.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:48 +04:00
Saurav Kashyap 81178772b6 [SCSI] qla2xxx: Implemetation of mctp.
[jejb: fix up checkpatch errors]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:47 +04:00
Santosh Vernekar 7d613ac6ac [SCSI] qla2xxx: IDC implementation for ISP83xx.
Signed-off-by: Santosh Vernekar <santosh.vernekar@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:47 +04:00
Saurav Kashyap a9b6f722f6 [SCSI] qla2xxx: Implementation of bidirectional.
[jejb: merge fix for introduced warning]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:47 +04:00
Chad Dupuis 5f16b331d8 [SCSI] qla2xxx: Use bitmap to store loop_id's for fcports.
Store used fcport loop_id's in a bitmap so that as opposed to looping through
all fcports to find the next free loop_id, new loop_id lookup can be just be
done via bitops.

[jejb: plus fix for incorrect LOOPID_MAP_SIZE from Andrew Vasquez]
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:03:36 +04:00
Jon Mason e67f13212a [SCSI] qla2xxx: remove unnecessary reads of PCI_CAP_ID_EXP
The PCIE capability offset is saved during PCI bus walking.  It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it.  Also, pci_is_pcie is a
better way of determining if the device is PCIE or not (as it uses the
same saved PCIE capability offset).

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:59:02 +01:00
Nicholas Bellinger 2d70c103fd [SCSI] qla2xxx: Add LLD target-mode infrastructure for >= 24xx series
Add LLD target mode for >= 24xx series HW.  This code was originally based on
external qla2x00t module based on 8.02.01-k4, and has been refactored to
push the bulk of code into mainline qla2xxx.ko LLD -> qla_target.c.

The implementation uses internal workqueues for I/O context submission
into tcm_qla2xxx code, and includes the struct qla_tgt_func_tmpl API for
external interaction to allow qla2xxx LDD to function without direct
target-core dependencies:

It also enables qla_target.c usage within existing qla2xxx LLD code.
This includes:

*) Addition of target mode specific members to existing data
structures in qla_def.h and struct qla_hw_data->tgt_ops using
qla_target.h:struct qla_tgt_func_tmpl

*) Addition of struct qla_tgt_func_tmpl and direct calls into
qla_target.c logic w/ qlt_* prefixed functions.

*) Addition of qla_iocb.c:qla2x00_req_pkt() for ring processing, and
qla2x00_issue_marker() for handling request/response queue processing
for target mode operation

*) Addition of various qla_tgt_mode_enabled() logic checks in
qla24xx_nvram_config(), qla2x00_initialize_adapter(), qla2x00_rff_id(),
qla2x00_abort_isp(), qla24xx_modify_vp_config(), and
qla2x00_vp_abort_isp().

By default the new qlini_mode module parameter is setting initiator-mode
to 'enabled' in order for 'modprobe qla2xxx' to continue to function as
expected in initiator only mode.  Enabling target-mode operation will
currently require a:

    modprobe qla2xxx qlini_mode="disabled"

in order to explictly disabled initiator mode and allow target-mode
to be enabled via tcm_qla2xxx configfs fabric callers.

(nab: Convert to qlini_mode='enabled' by default in qla_target.c)
(joern: Remove loop_id from qla_tgt_make_local_sess() arguments +
        Remove unused s_id + fix s_id endianness bug +
        simplify qla_tgt_abort_work)
(gerard: fix section __exit mismatch in qla_tgt_exit)
(arun: Capture ATIO queue during firmware dump + Send SCR in target mode +
       Target mode review comments)
(roland: Don't create duplicate target sessions to address tearing down
         ACLs with IO in flight + Add missing call to qlt_fc_port_deleted
	 call during qla2x00_schedule_rport_del timeout)

Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-05-22 11:47:51 +01:00