Simplify operations with hiding mmio_base.
Signed-off-by: NSeungwon Jeon <tgih.jun@samsung.com>
Tested-by: NMaya Erez <merez@codeaurora.org>
Signed-off-by: NSantosh Y <santoshsy@gmail.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

The standard scsi timeout is not appropriate in some of the environments where
Hyper-V is deployed. Set this timeout appropriately for all devices managed
by this driver.

On cloud environments where storage latencies may be unbounded, having the
scsi layer initiating recovery can be problematic since (a) the host is
already implementing a variety of recovery strategies and (b) implementing a
recovery strategy at the VM level may be more appropriate in cases where
storage latencies exceed a certain threshold.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

I ported BusLogic driver to 64-bit. There is no current maintainer for
this driver and since I made significant changes to the driver for
64-bit porting work, I will continue to maintain it.
Signed-off-by: NKhalid Aziz <khalid@gonehiking.org>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

[jejb: fix up pointer to int cast warning]
Signed-off-by: NKhalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Fix CamelCase and extra long lines in the buslogic driver.
Signed-off-by: NKhalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

This is the kernel part of the modification to extract the net params
from the ibft sysfs to the iface struct used for the connection
request upon sync_session in the open-iscsi util.

Three new session sysfs params are defined:
boot_root - holds the name of the /sys/firmware/ibft or iscsi_rootN
boot_nic  - holds the ethernetN name
boot_target - holds the targetN name
Signed-off-by: NEddie Wai <eddie.wai@broadcom.com>
Reviewed-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

One of the customer had reported that the set of raid logical arrays will
become unavailable (I/O offline) after a long hours of IO stress test.  The OS
wouldn`t be accessible afterwards and require a hard reset.

This driver patch has a fix for race condition between the doorbell and the
circular buffer. The driver is modified to do an extra read after clearing the
doorbell in case there had been a completion posted during the small timing
window.

With this fix, we ran IO stress for ~13 days. There were no IO failures.
Signed-off-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NWen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: NBrian King <brking@linux.vnet.ibm.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

SATA drives located behind a SAS controller would incorrectly receive
WRITE SAME commands. Tweak the heuristics so that:

 - If REPORT SUPPORTED OPERATION CODES is provided we will use that to
   choose between WRITE SAME(16), WRITE SAME(10) and disabled. This also
   fixes an issue with the old code which would issue WRITE SAME(10)
   despite the command not being whitelisted in REPORT SUPPORTED
   OPERATION CODES.

 - If REPORT SUPPORTED OPERATION CODES is not provided we will fall back
   to WRITE SAME(10) unless the device has an ATA Information VPD page.
   The assumption is that a SATL which is smart enough to implement
   WRITE SAME would also provide REPORT SUPPORTED OPERATION CODES.

To facilitate the new heuristics scsi_report_opcode() has been modified
to so we can distinguish between "operation not supported" and "RSOC not
supported".
Reported-by: NH. Peter Anvin <hpa@zytor.com>
Tested-by: NBernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

There is an unlock missing if the == FNIC_IOREQ_ABTS_PENDING is
false.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NHiral Patel <hiralpat@cisco.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Update bfa driver version to 3.2.21.1
Update bfa to use firmware image versions 3.2.1.0
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Disassoicate path_tov in the driver with the dev_loss_tmo set by the
application.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

This patch enables support for chinook quad port 16G FC card (falcon)
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Fix endianess issue on Big-endian architecture for firmware statistics
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Fix bug_on condition check in RPSC (Report Port Speed Capabilities)
response processing.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Allow processing completions from firmware during IOC_DISABLE request is
being processed by the firmware, by setting the queue_process flag
appropriately.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Get RDS drop interrupts and REC (Read Exchange Concise) related stats
from firmware.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

1. While FRU VPD data update, inform firmware to send a completion event
   on I2C bus. Without this change, firmware used to send completion
   message on I2C bus for every chunk of FRU VPD update.
2. Support for FRU VPN update on CHINOOK2 cards.
3. Append port count to the model name to differentiate between single
   port and dual port model of 1860.
4. Update the size of the model name to 16bytes
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Replaced usage of void * with u64 in data structure shared between
brocade user space libraries and the bfa driver to address pointer
size changes across 32-bit vs 64-bit to have the compatibility between
32bit library and 64bit driver and vice versa.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Root cause: When kernel crashes, On brocade 815/825 adapters,
 bfa IOC state machine and FW doesn't get a notification and
hence are not cleanly shutdown. So registers holding driver/IOC
state information are not reset back to valid disabled/parking
values. This causes subsequent driver initialization to fail
during kdump kernel boot.

Fix description: during the initialization of first PCI function, reset
corresponding register when unclean shutown is detect by reading chip
registers. This will make sure that ioc/fw gets clean re-initialization.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Retry FDISC a max of 6 times. Introduce new events to handle vport
login fails due to max logins to fabric/switch.
Signed-off-by: NAnil Gurumurthy <agurumur@brocade.com>
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

On Xen kernels, if ATC (address translation cache) is enabled, the
first PCIe DMA read from the adapter fails with an error. This is due to
a bug ASIC, which leads to a failure of 1860 ports to be initialised.

This patch includes the fix to disable Invalidated Tag Match Enable
capability by setting the bit 26 of CHIP_MISC_PRG to 0, by default it is
set to 1.
Signed-off-by: NAnil Gurumurthy <agurumur@brocade.com>
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Update addl. fields in FDMI to confirm to FC-GS6 standard for RPA and
RHBA commands.
Signed-off-by: NAnil Gurumurthy <agurumur@brocade.com>
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

The WARN_ON condition check in IO completion path is wrong. IOtags
returned by the firmware is compared with driver/bfa iotag after masking
the retry count bits.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

D-Port is a new port type created with the intention of running link
level diagnostic tests like loopback, traffic test. In static D-port
mode, user configures the port to D-port mode and starts the test, but
in dynamic D-port, once the Brocade switch port is configured to
D-port, it will reject the regular FLOGI from HBA with reason that it is
in D-port mode. So based on the reason code HBA port will turn itself into
D-port and start diagnostic test.
Signed-off-by: NSudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

This patch includes changes to get FC HBA feature Forward Error
Correction (FEC) (enabled at 16Gig speed) status from firmware and to
return to brocade HBA management utility.
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

This patch includes changes to  1) Enable/disable fc credit recovery on
Brocade FC adapter port operating at max supported speed. 2) Get credit
recovery status and stats related to credit loss and recovered credits
Signed-off-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

The 'ctl' field of  the 'struct ata_taskfile' is not really dual purpose, i.e.
it is not intended  for storing the alternate status register (which is mapped
at the same address in the legacy IDE controllers) in the qc_fill_rtf() method.
No other 'libata' driver except 'drivers/scsi/ipr.c' stores the alternate status
register's value in the 'ctl' field of 'qc->result_tf', hence this driver should
not do this as well...
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: NBrian King <brking@linux.vnet.ibm.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>