Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

FLTDS provides FLT address in the byte address format,
convert it to dword address for further use.
Signed-off-by: NHarish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

In addition to checking for potentially unnecessary iomem
readX()/writeX() operations, a pci_channel_io_perm_failure should
not trigger a full internal removal.  Found during additional
testing with pSeries blade systems.
Signed-off-by: NSeokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

As updates will occur using low-level option-rom manipulation
routines.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Firmware semantics changed for 24xx and above ISPs in their
handling of the specified execution-throttle passed during
firmware initialization.  The original codes use of a theoretical
maximum (0xffff, as carried over from earlier ISPs) could in fact
act as a throttle in some circumstances.  Now set the value based
of the firmware's own 'resource' (exchange IOCBs) capabilities.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The original code to 'resize request-queues' based on iocb-counts
and employed during early ISP23xx testing was too
overly-pessimistic with regards to latencies in the firmware
pulling requests.  Recent ISPs can easily keep up processing a
stream of commands from an abbreviated (effectively, half the
original size) queue.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rather than assuming a particular layout of the data.  Applies to
recent ISPs only.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

When IRQs are shared by multiple controllers and if the first one
to register does not disable the IRQ, then IRQ will be enabled
for all other controllers by default, irrespective of their
setting. With IRQF_DISABLED registration, the driver interrupt
routine was called with interrupt enabled always. Disbaling the
registration with IRQF_DISABLED, since driver code is re-entrant
safe and all critical sections are guarded with interrupt safe
locks.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Interface allows for the update of onboard EDC firmware
present on mezzanine ISP25xx type cards.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

In handling the RMW semantics needed to update regions not
falling on a sector boundary.
Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

General cleanup of extraneous/legacy crud.

Additional cleanups and
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

For ISP24xx and above the ISP-abort after flash update is not
needed, as the only purpose it was serving was to update the boot
code and firmware versions in the scsi_qla_host_t structure.  Now
an update of the versions will be done in the write-vpd path.
Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Additional cleanups and
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Additional cleanups and
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Ensure that an ISP-abort has completed before performing any
update.  After the update do not wait for an ISP-abort completion,
instead just wait until the ISP is reset.  This avoids long
delays due to waiting for loop ready in qla2x00_abort_isp().
Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Additional cleanups and
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Given the low-level interface varies from one flash-part
manufacturer to the next, the Flash-Access-Control (FAC) mailbox
command makes the specific flash type transparent to the driver
by encapsulating a basic set of accessor and update routines.
Use these new routines where applicable by querying FAC opcode
get-sector-size at init-time.

Additional cleanups and
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Since the routines can/will use resources such as devices and
rports that aren't valid after midlayer tear-down, correct this
potential race, by stopping the offending during the early stages
of the remove() callback.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

As all commands queued on the physical HBA should be aborted and
returned to the upper-layers.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Reflects layout and format of latest specification.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Since in some circumstances, login-retries may be occuring in the
background via the DPC routine.  This race, in the inadvertant
setting of the loop-id to 'NONE' breaks the existing retry logic.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Recent ISPs use this data to configure FCF information.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

With recent ISPs loading firmware from flash, a flash-update to
the firmware-image region with a follow-on reset will reload the
new image.

Original caching of data only made sense when firmware was bound
with the driver.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The pcihdr variable is used to find valid boot code image to get
FC boot code versions from flash. The pcihdr variable should be
byte aligned.
Signed-off-by: NHarish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

fce_size should be calculated based on the FCE_SIZE #define.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Earlier refactoring codes missed passing the proper vha structure
and instead passed the 'hardware-descriptor' ha.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Post refactoring/multi-queue additions essentially eliminated the
need for separate ISP24XX+ queuecommand as isp_ops contains a
function pointer to the associated 'start_scsi()' operation.
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

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: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The value is already pre-assigned prior to the qla2x00_mem_alloc().
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

QLA_* return codes are 'int' in size.  There were still several
legacy check-points which assumed a return-code width of 8-bits.
This could cause incorrect assumptions of 'good' status if a
return of QLA_FUNCTION_TIMEOUT.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Use minimum value for max vport during firmware initialization in LOOP
topology. Using max vport value from get resource count in LOOP topology
causes firmware initialization failure.
Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Bits 31-8 are marked as reserved and should be ignored while
interpreting a region's code.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The clearing of a vha's req_ques were overrunning during vport
creation.  During deletion, vport queues should be torn-down
after all cleanup has occurred.
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

To ensure smooth operations amongst the FCoE and NIC side
components of the ISP81xx chip, the FCoE driver (qla2xxx) must
ensure the 10gb NIC driver (qlge) does not timeout waiting for
IDC (Inter-Driver Communication) acknowledgments.  The
acknowledgment requirements are trivial -- a simple mirroring of
incoming mailbox registers during the AEN to a process-context
capable mailbox command.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Correct response-queue-0 processing by instructing the firmware
to run with interrupt-handshaking disabled, similarly to what is
now done for all non-0 response queues.  Since all
response-queues now run in the same mode, the driver no longer
needs the hot-path 'is-disabled-HCCR' test.
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Kernel Panic is observed with a Qlogic 2472 Card is plugged into the
system and the qla2xxx driver is loaded:

QLogic Fibre Channel HBA Driver: 8.02.01.02.11.0-k9
vendor=8086 device=3410
qla2xxx 0000:05:00.0: PCI INT A -> GSI 40 (level, low) -> IRQ 40
qla2xxx 0000:05:00.0: Found an ISP2432, irq 40, iobase
0xffffc2001091c000
qla2xxx 0000:05:00.0: Configuring PCI space...
qla2xxx 0000:05:00.0: setting latency timer to 64
qla2xxx 0000:05:00.0: Configure NVRAM parameters...
BUG: unable to handle kernel NULL pointer dereference at
0000000000000000
IP: [<ffffffff8036319a>] strncpy+0x5/0x1e
PGD 7c564067 PUD 78d8c067 PMD 0
Oops: 0000 [1] SMP
last sysfs file:
/sys/devices/pci0000:00/0000:00:1d.1/usb6/6-2/6-2:1.1/input/input4/event
4/dev
CPU 1
Modules linked in: qla2xxx(+) squashfs usb_storage scsi_transport_fc
scsi_tgt parport_pc parport arc4 ecb crypto_blkcipher acpi_cpufreq fan
loop nfs nfs_acl lockd sunrpc nls_iso8859_1 nls_cp437 ipv6 af_packet st
sr_mod ide_disk ide_cd_mod ide_core cdrom usbhid hid ff_memless sg
sd_mod crc_t10dif uhci_hcd mptsas mptscsih ehci_hcd mptbase
scsi_transport_sas rtc_cmos rtc_core rtc_lib usbcore scsi_mod thermal
bnx2 button processor thermal_sys hwmon edd
Supported: Yes
Pid: 4415, comm: insmod Not tainted 2.6.27.13-1-default #1
RIP: 0010:[<ffffffff8036319a>] [<ffffffff8036319a>] strncpy+0x5/0x1e
RSP: 0018:ffff88007b04fbc0 EFLAGS: 00010202
RAX: 00000000000000b7 RBX: ffff88007b9641e0 RCX: ffff88007c1b2ad7
RDX: 000000000000004f RSI: 0000000000000000 RDI: ffff88007c1b2ad7
RBP: ffff88007c1b0620 R08: 0000000000000010 R09: 0000000100000000
R10: 0000000000000046 R11: ffffffff803651c6 R12: ffff88007b074000
R13: ffff88007b964000 R14: ffff88007c1b2ac6 R15: 0000000000000000
FS: 00007f91a6c366f0(0000) GS:ffff88007dbeee40(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000007bd7c000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process insmod (pid: 4415, threadinfo ffff88007b04e000, task
ffff880078586180)
Stack: ffffffffa02d82c4 0000000000002432 ffff88007d385000
ffff88007c1b0620
ffff88007c1b0620 ffff88007c1b0000 ffff88007d385000 0000000000002432
ffffffffa02dcb1e 0000000000002432 ffffc2001091c000 ffff88007c1b0620
Call Trace:
[<ffffffffa02d82c4>] qla24xx_nvram_config+0x385/0x6c2 [qla2xxx]
[<ffffffffa02dcb1e>] qla2x00_initialize_adapter+0x169/0x383 [qla2xxx]
[<ffffffffa02f2040>] qla2x00_probe_one+0x6bc/0x9c6 [qla2xxx]
[<ffffffff8037346f>] pci_device_probe+0xb8/0x105
[<ffffffff803e5a27>] really_probe+0xdd/0x1e5
[<ffffffff803e5c14>] __driver_attach+0x46/0x6d
[<ffffffff803e51e1>] bus_for_each_dev+0x44/0x78
[<ffffffff803e4ac7>] bus_add_driver+0xef/0x235
[<ffffffff803e5dd8>] driver_register+0xa2/0x11f
[<ffffffff803736fd>] __pci_register_driver+0x5d/0x90
[<ffffffffa0308126>] qla2x00_module_init+0x126/0x159 [qla2xxx]
[<ffffffff80209041>] _stext+0x41/0x110
[<ffffffff80260abd>] sys_init_module+0xa0/0x1ba
[<ffffffff8020bfbb>] system_call_fastpath+0x16/0x1b
[<00007f91a679b76a>] 0x7f91a679b76a
Code: ff c1 41 39 c0 75 05 45 85 c0 75 bf 41 29 c0 44 89 c0 c3 31 d2 8a
04 16 88 04 17 48 ff c2 84 c0 75 f3 48 89 f8 c3 48 89 f9 eb 10 <8a> 06
3c 01 88 01 48 83 de ff 48 ff c1 48 ff ca 48 85 d2 75 eb
RIP [<ffffffff8036319a>] strncpy+0x5/0x1e
RSP <ffff88007b04fbc0>
CR2: 0000000000000000
---[ end trace 829d7d78dfafb785 ]---

The attached patch fixes the issue.
Signed-off-by: NShyam Iyer <shyam_iyer@dell.com>
Acked-by: NSeokmann Ju <Seokmann.ju@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Commit f78badb1 ([SCSI] fc
transport: pre-emptively terminate i/o upon dev_loss_tmo timeout)
changed the callback semantics of dev_loss_tmo and
terminate_rport_io such that repeated calls could be made.  This
could result in the the driver using stale (NULLed-out, in
dev_loss_tmo) data from the rport.  Correct this by addint a
simple check to ensure a valid fcport is attached.
Signed-off-by: NSeokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>