[PATCH v1 0/4] smartpqi: fixes and updates for 2.1.42-011

[David Strahan <david.strahan@microchip.com>]

From: David Strahan <David.Strahan@microchip.com>

These patches are based on Martin Petersen's 7.2/scsi-queue tree
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
 7.2/scsi-queue

This patch series includes four patches, with two main functional changes:

1. smartpqi-Fix-AIO-retry-marker-cleared-by-SCSI-core-between-dispatches

   On recent Linux kernels the driver can enter a retry loop on the
   AIO fast path when a request is retried, looping until timeout, and
   a diagnostic path that takes a physical drive offline on AIO-bypass
   failure is never entered.

   Registers a per-command initialization callback with the SCSI core
   so its presence causes the core to skip the per-dispatch clear of
   the retry marker, letting it survive the requeue so the AIO-to-RAID
   fallback proceeds as intended.

2. smartpqi-add-support-for-CCISS_BIG_PASSTHRU-ioctl

   Adds pqi_big_passthru_ioctl() to handle CCISS_BIG_PASSTHRU ioctl
   requests. The existing passthru ioctl uses a 16-bit integer for the
   I/O buffer size, limiting transfers to 64KB. The big passthru ioctl
   uses BIG_IOCTL_Command_struct, which stores the buffer size as a
   32-bit integer, allowing the larger transfers required by some
   management utilities.

The other two patches:
3. smartpqi-add-new-pci-device-ids
   Adds PCI IDs for new Hurray Data, ZTE, and Ramaxel controllers.
   No functional changes.
4. smartpqi-update-driver-version-to-2.1.42-011
   Updates the driver version string.
   No functional changes.