Signed-off-by: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Base the number of outstanding requests the driver will keep track of on the
available resources instead of being hard-coded.
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Parameterize qla2x00_get_link_speed_str() to be generic on link speed.
Signed-off-by: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Rather than returning stale mailbox values.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Acked-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSantosh Vernekar <santosh.vernekar@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Update the driver copyright from 2003-2011 to 2003-2012.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Minor changes to support loopback functionality with ISP83xx CNAs.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

[jejb: fix up checkpatch errors]
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NSantosh Vernekar <santosh.vernekar@qlogic.com>
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

[jejb: merge fix for introduced warning]
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NJon Mason <jdmason@kudzu.us>
Acked-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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: NNicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

The field vp_idx in struct fc_port is a redundant/mirror copy of
the same field in struct scsi_qla_host;

struct fc_port has a pointer vha to scsi_qla_host which allows
the original copy of vp_idx to be readily accessed.
Signed-off-by: NJoe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Currently stats is part of ha data structure, common for physical and virtual
ports. Moved the stats to vha, each port will have its own stat.
Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Replace "Inconisistent" with "Inconsistent" in drivers/scsi/qla2xxx/qla_init.c
Signed-off-by: NRaul Porcel <armin76@gentoo.org>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

A device logout sent in the delete path of a fcport would clear the
port handle binding inside the firmware. This could lead to queued
work items for the fcport, if any, getting incorrect results. This
patch fixes the issue by checking for device name changes after a
call to get port database.
Signed-off-by: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Add a field to the qla_hw_data struct to allow us to set the maximum number of
fabric devices on a per adapter basis based on ISP type.

[jejb: fix up missing rval = QLA_SUCCESS to prevent uninit var warning]
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Rather than continuously allocating and freeing swl within the discovery
process, simply pre-allocate it the first time that it's needed, cache it
through the rest of the lifecycle of the driver and free it at module unload.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Make sure that all calls to ha->isp_ops->fabric_login() check the
return value for failure.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Instead of processing each RSCN individually, use only the name server results
from the switch to tell the existance of a given fcport.
Signed-off-by: NArun Easi <arun.easi@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Rework the structures related to SRB processing to minimize the memory
allocations per I/O and manage resources associated with and completions
from common routines.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Original 'defaults' were not OUI valid.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>