[edk2-devel] [PATCHv2 4/4] MdeModulePkg/SdMmcPciHcDxe: Add retries for async commands

[Albecki, Mateusz]

This patch adds retries for async execution for commands that
failed due to the CRC errors.

Cc: Hao A Wu <hao.a.wu at intel.com>
Cc: Marcin Wojtas <mw at semihalf.com>
Cc: Zhichao Gao <zhichao.gao at intel.com>
Cc: Liming Gao <liming.gao at intel.com>

Signed-off-by: Mateusz Albecki <mateusz.albecki at intel.com>
---
 MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
index 193b0f24e2..b18ff3e972 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
@@ -211,8 +211,10 @@ Done:
       gBS->SignalEvent (TrbEvent);
       return;
     }
-  }
-  if ((Trb != NULL) && (Status != EFI_NOT_READY)) {
+  } else if ((Trb != NULL) && (Status == EFI_CRC_ERROR) && (Trb->Retries > 0)) {
+    Trb->Retries--;
+    Trb->Started = FALSE;
+  } else if ((Trb != NULL)) {
     RemoveEntryList (Link);
     Trb->Packet->TransactionStatus = Status;
     TrbEvent = Trb->Event;
-- 
2.14.1.windows.1

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