Re: [PATCH 1/2] MdeModulePkg/SataControllerDxe: Add support for drives in RAID mode

Wu, Hao A

-----Original Message-----
From: Vitaly Cheptsov <cheptsov@...>
Sent: Friday, December 11, 2020 5:25 PM
Cc: Vitaly Cheptsov <cheptsov@...>; Wang, Jian J
<>; Wu, Hao A <hao.a.wu@...>; Albecki,
Mateusz <mateusz.albecki@...>; Laszlo Ersek <lersek@...>
Subject: [PATCH 1/2] MdeModulePkg/SataControllerDxe: Add support for
drives in RAID mode


This resolves the problem of using drivers connected to Intel G33 builtin
SATA controller when run from DuetPkg when it can only be configured in
RAID mode through the firmware settings.

Hello Vitaly,

If my understanding is correct, this driver (SataControllerDxe) and the
AtaAtapiPassThru driver are written for non-RAID case only.

Both drivers (especially AtaAtapiPassThru) do not distinguish logic/physical
SCSI channels, which I think only works for the non-RAID case. I am not sure if
this patch series will have an impact to existing RAID drivers.

Best Regards,
Hao Wu

Cc: Jian J Wang <>
Cc: Hao A Wu <hao.a.wu@...>
Cc: Mateusz Albecki <mateusz.albecki@...>
Cc: Laszlo Ersek <lersek@...>
Signed-off-by: Vitaly Cheptsov <cheptsov@...>
MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.c
index ab06e2833c..301335c967 100644
--- a/MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.c
+++ b/MdeModulePkg/Bus/Pci/SataControllerDxe/SataController.c
@@ -324,7 +324,7 @@ SataControllerSupported (

- if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData)) {
+ if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData) || IS_PCI_RAID
+ (&PciData)) {

@@ -465,7 +465,7 @@ SataControllerStart (
if (IS_PCI_IDE (&PciData)) {
Private->IdeInit.ChannelCount = IDE_MAX_CHANNEL;
Private->DeviceCount = IDE_MAX_DEVICES;
- } else if (IS_PCI_SATADPA (&PciData)) {
+ } else if (IS_PCI_SATADPA (&PciData) || IS_PCI_RAID (&PciData)) {
// Read Ports Implemented(PI) to calculate max port number (0 based).
2.24.3 (Apple Git-128)

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