Use the more efficient read-DMA'ble-buffer mailbox commands
rather than reading a single word/dword at a time.  We also
remove a bulk of the duplicate mailbox command-handling codes in
favor of more generic read-memory() routines (qla2xxx_dump_ram()
and qla24xx_dump_ram()).
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

lpfc and qla2xxx overwrite the standard 'state' attribute with
custom callbacks. So rename the custom attributes to 'link_state'
and retain the original meaning of the 'state' attribute.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Acked-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Acked-by: NJames Smart <James.Smart@Emulex.Com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

It's big, but there doesn't seem to be a way to split it up smaller...
Signed-off-by: NTony Jones <tonyj@suse.de>
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>

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

Upon having configuration changes on vports only, the driver
handles SCR regardless physical port state and, in turn, it
results mailbox error as below:

	Mar 20 11:24:20 dl585 kernel: qla2x00_mailbox_command(9): **** FAILED.  mbx0=4005, mbx1=1, mbx2=8100, cmd=70 ****

With the changes, driver checks physical port loop_state and make
sure the port is ready to take commands.
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>

Changes are added to the driver so that it can behave properly
upon having asynchronous events, for example, addition of target
devices to the VPs.
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 there is no actual cable connection on vports, made change so
that the driver checks DFLG_NO_CABLE against ha->device_flags
only for physical port.
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>

There were several places where referencing ha structure of
virtual ports for resources. Among those refereces, certain
fields are get up-to-dated only on ha structure of physical port.
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>

The member is not needed as there's no non-scatter-gather
list I/Os submitted by the upper-layers.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

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

Now that infrastructure is present within the midlayer and there
is a clear distinction between what is expected from a device and
target reset, convert the current device-reset codes to a
target-reset, and add codes to perform a proper device-reset (LUN
reset).

In the process of adding reset support, collapse and consolidate
large sections of mailbox-command (TMF issuance) codes,
generalize the two 'wait-for-commands-to-complete' functions, and
add a generic-reset routine for use by midlayer reset functions.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Some switches return 0x09 (Command not supported) as the reason
code for GPSC failure.  Check for this code, and disable
additional GPSC queries if found.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

The Flash Descriptor Table (FDT) present on many recent HBAs
encodes flash accessing characteristics of the flash-part used on
the HBA.  Use this information during flash manipulation (writes)
rather than using specific hard-coded values based on queried
manufacturer and device IDs.
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>

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

Recent ISPs have a region within FLASH which acts as a repository
for the logging of serious hardware and software failures.
Currently, the region is large enough to support up to 255
entries.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Supported events include LIP, LIP reset, RSCN, link up, and link
down.

To support AEN (and additional forthcoming features), we also
introduce a simple deferred-work construct to manage events which
require a non-atomic sleeping-capable context.  This work-list is
processed as part of the driver's standard DPC routine.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

There's no need to use the heavier (albiet safer)
*_irq[save|restore]() locking primitives within the driver's
interrupt handlers, interrupts are guaranteed to be
non-reentrant.  Use lightweight spin_lock() and spin_unlock()
primitives while acquiring the hardware_lock.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Rather than using a duplicate/cached value stored in the driver's
internal fcport structure.
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>

Use generic FC transport #defines for speed values.
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>

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

The original code would incorrectly hardcode ELS timeout values
rather than using the traditional '2 * r_a_tov' value.  In some
cases, the hardcoded values would be larger than the
mailbox-command-timeout and result in a needless BIG_HAMMER (ISP
reset), the typical recovery mechanism employed in such cases.

The second defect in the original code was in the assignment of
the default 'ha->r_a_tov' to twice the traditional value.
Correct this by setting the value to 10 seconds.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

For recent ISPs, software must detect OVERRUN conditions by
checking the SS_RESIDUAL_OVER bit during CS_COMPLETE handling.
Update the driver to perform this check, which is consistent with
what earlier firmwares did by explicitly cracking open the
FCP_RSP statuses and returning an CS_DATA_OVERRUN.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

There's no point in hitting the RISC with what will most
assuredly be an unsucessful reset of the RISC hardware if the
initial stop-firmware mailbox command fails with a time-out
status.  Instead, to avoid what could amount to a lengthy
stop-firmware/detect-failure/reset-risc loop, continue with
driver unloading and discard the stop-firmware requirement.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

scsi/qla2xxx/qla_dfs.c: In function 'qla2x00_dfs_fce_show':
scsi/qla2xxx/qla_dfs.c:26: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'uint64_t'
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-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>

[SCSI] qla2xxx: Correct issue where incorrect init-fw mailbox command was used on non-NPIV capable ISPs.

BIT_2 of the firmware attributes is only valid on FW-interface-2
type HBAs.  Code in commit
c48339de would cause the
incorrect initialize-firmware mailbox command to be issued for
non-NPIV capable ISPs.  Correct this by reverting to previously
used (and correct) pre-condition 'if' check.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

 For following fc_host specific attributes, vports rely on the pport.
 So, this patch changed way to access the data for those attributes so that
 they can access pport's.
 - get_host_speed (speed)
 - get_host_port_state (port_state)
 - get_host_port_type (port_type)
 - get_fc_host_stats

Also, added PORT_SPEED_8GB case in the speed attribute for 8Gb HBAs.
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>

While running IO simultaneously through physical port and virtual
port, if user changes Data Rate (from scli utility), IO through
virtual port fails.  It failed because the vport had not received
the ISP_ABORT_NEEDED notification.
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>

There's no functional change involved with this update, instead
it simply migrates the "set cleared interrupt state" codes to a
more approprate method, qla2x00_request_irqs(), and cleans-up the
driver's probe() logic.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Collapse duplicate codes called during probe() and RISC-reset
into qla2x00_setup_chip().
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

- Drop loop-till-allocated structure of code within
  qla2x00_mem_alloc().
- Properly unwind deallcations of memory during failures.
- Drop qla2x00_allocate_sp_pool() and qla2x00_free_sp_pool()
  functions as their implementations can easily be collapsed into
  the callers.
- Defer DMA pool allocation of SFP data until requested.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

To insure that there is no stale data present during EFT
re-registration.
Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

Refactor SRB-failure completion codes in the process.  Also,
signal the DPC routine to complete sooner as backend processing
at shutdown-time is superflous.

[jejb: resolve conflicts with pci_enable_device_bars removal]
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>