[PATCH 0/1] MdeModulePkg/Ahci: Skip retry for non-transient errors

["Albecki, Mateusz" <mateusz.albecki@intel.com>]

Fix for the recovery logic which causes hdd unlock to fail if user supplies incorrect
password. Every failed packet used to be recovered which is causing the
incorrect password to be tried multiple times. This patch series fixes the logic
to only retry commands that failed due to CRC error.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4011

Github pull: https://github.com/tianocore/edk2/pull/4157

Tests:
- tested basic linux boot from AHCI on qemu
- tested basic linux boot from AHCI on custom qemu which will fail 50% of the DMA commands with CRC error.
  Observed that all of the packets that failed were successfully retried. Custom Qemu: https://github.com/matalbec/qemu/tree/sata_dma_50p_fail
- additionally Hunter Chang tested and confirmed that the password issue is no longer observed.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Hunter Chang <hunter.chang@intel.com>

Mateusz Albecki (1):
  MdeModulePkg/Ahci: Skip retry for non-transient errors

 .../Bus/Ata/AtaAtapiPassThru/AhciMode.c       | 69 +++++++++++++++++--
 .../Bus/Ata/AtaAtapiPassThru/AhciMode.h       |  3 +-
 2 files changed, 67 insertions(+), 5 deletions(-)

-- 
2.39.1.windows.1

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