Revision: 17559
http://sourceforge.net/p/edk2/code/17559
Author: erictian
Date: 2015-06-04 06:57:18 +0000 (Thu, 04 Jun 2015)
Log Message:
-----------
MdeModulePkg/NvmExpressDxe: roll back redundant change in r17286
The initialization of Cc.Iosqes and Cc.Iocqes should not be removed
before any I/O operation as it would impact Qemu-NVMe functionality
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <[email protected]>
Revision Links:
--------------
http://sourceforge.net/p/edk2/code/17286
Modified Paths:
--------------
trunk/edk2/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c
Modified: trunk/edk2/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c
===================================================================
--- trunk/edk2/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c
2015-06-04 05:34:46 UTC (rev 17558)
+++ trunk/edk2/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c
2015-06-04 06:57:18 UTC (rev 17559)
@@ -513,9 +513,11 @@
// CC.AMS, CC.MPS and CC.CSS are all set to 0.
//
ZeroMem (&Cc, sizeof (NVME_CC));
- Cc.En = 1;
+ Cc.En = 1;
+ Cc.Iosqes = 6;
+ Cc.Iocqes = 4;
+
Status = WriteNvmeControllerConfiguration (Private, &Cc);
-
if (EFI_ERROR(Status)) {
return Status;
}
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