diff options
Diffstat (limited to 'OvmfPkg/PvScsiDxe/PvScsi.c')
| -rw-r--r-- | OvmfPkg/PvScsiDxe/PvScsi.c | 109 |
1 files changed, 58 insertions, 51 deletions
diff --git a/OvmfPkg/PvScsiDxe/PvScsi.c b/OvmfPkg/PvScsiDxe/PvScsi.c index 1ca50390c0..843534ebf7 100644 --- a/OvmfPkg/PvScsiDxe/PvScsi.c +++ b/OvmfPkg/PvScsiDxe/PvScsi.c @@ -991,13 +991,6 @@ PvScsiInitRings ( )
{
EFI_STATUS Status;
- union {
- PVSCSI_CMD_DESC_SETUP_RINGS Cmd;
- UINT32 Uint32;
- } AlignedCmd;
- PVSCSI_CMD_DESC_SETUP_RINGS *Cmd;
-
- Cmd = &AlignedCmd.Cmd;
Status = PvScsiAllocateSharedPages (
Dev,
@@ -1032,46 +1025,8 @@ PvScsiInitRings ( }
ZeroMem (Dev->RingDesc.RingCmps, EFI_PAGE_SIZE);
- ZeroMem (Cmd, sizeof (*Cmd));
- Cmd->ReqRingNumPages = 1;
- Cmd->CmpRingNumPages = 1;
- Cmd->RingsStatePPN = RShiftU64 (
- Dev->RingDesc.RingStateDmaDesc.DeviceAddress,
- EFI_PAGE_SHIFT
- );
- Cmd->ReqRingPPNs[0] = RShiftU64 (
- Dev->RingDesc.RingReqsDmaDesc.DeviceAddress,
- EFI_PAGE_SHIFT
- );
- Cmd->CmpRingPPNs[0] = RShiftU64 (
- Dev->RingDesc.RingCmpsDmaDesc.DeviceAddress,
- EFI_PAGE_SHIFT
- );
-
- STATIC_ASSERT (
- sizeof (*Cmd) % sizeof (UINT32) == 0,
- "Cmd must be multiple of 32-bit words"
- );
- Status = PvScsiWriteCmdDesc (
- Dev,
- PvScsiCmdSetupRings,
- (UINT32 *)Cmd,
- sizeof (*Cmd) / sizeof (UINT32)
- );
- if (EFI_ERROR (Status)) {
- goto FreeRingCmps;
- }
-
return EFI_SUCCESS;
-FreeRingCmps:
- PvScsiFreeSharedPages (
- Dev,
- 1,
- Dev->RingDesc.RingCmps,
- &Dev->RingDesc.RingCmpsDmaDesc
- );
-
FreeRingReqs:
PvScsiFreeSharedPages (
Dev,
@@ -1121,6 +1076,48 @@ PvScsiFreeRings ( STATIC
EFI_STATUS
+PvScsiSetupRings (
+ IN OUT PVSCSI_DEV *Dev
+ )
+{
+ union {
+ PVSCSI_CMD_DESC_SETUP_RINGS Cmd;
+ UINT32 Uint32;
+ } AlignedCmd;
+ PVSCSI_CMD_DESC_SETUP_RINGS *Cmd;
+
+ Cmd = &AlignedCmd.Cmd;
+
+ ZeroMem (Cmd, sizeof (*Cmd));
+ Cmd->ReqRingNumPages = 1;
+ Cmd->CmpRingNumPages = 1;
+ Cmd->RingsStatePPN = RShiftU64 (
+ Dev->RingDesc.RingStateDmaDesc.DeviceAddress,
+ EFI_PAGE_SHIFT
+ );
+ Cmd->ReqRingPPNs[0] = RShiftU64 (
+ Dev->RingDesc.RingReqsDmaDesc.DeviceAddress,
+ EFI_PAGE_SHIFT
+ );
+ Cmd->CmpRingPPNs[0] = RShiftU64 (
+ Dev->RingDesc.RingCmpsDmaDesc.DeviceAddress,
+ EFI_PAGE_SHIFT
+ );
+
+ STATIC_ASSERT (
+ sizeof (*Cmd) % sizeof (UINT32) == 0,
+ "Cmd must be multiple of 32-bit words"
+ );
+ return PvScsiWriteCmdDesc (
+ Dev,
+ PvScsiCmdSetupRings,
+ (UINT32 *)Cmd,
+ sizeof (*Cmd) / sizeof (UINT32)
+ );
+}
+
+STATIC
+EFI_STATUS
PvScsiInit (
IN OUT PVSCSI_DEV *Dev
)
@@ -1172,6 +1169,14 @@ PvScsiInit ( }
//
+ // Setup rings against device
+ //
+ Status = PvScsiSetupRings (Dev);
+ if (EFI_ERROR (Status)) {
+ goto FreeDmaCommBuffer;
+ }
+
+ //
// Populate the exported interface's attributes
//
Dev->PassThru.Mode = &Dev->PassThruMode;
@@ -1202,13 +1207,15 @@ PvScsiInit ( return EFI_SUCCESS;
-FreeRings:
- //
- // Reset device to stop device usage of the rings.
- // This is required to safely free the rings.
- //
- PvScsiResetAdapter (Dev);
+FreeDmaCommBuffer:
+ PvScsiFreeSharedPages (
+ Dev,
+ EFI_SIZE_TO_PAGES (sizeof (*Dev->DmaBuf)),
+ Dev->DmaBuf,
+ &Dev->DmaBufDmaDesc
+ );
+FreeRings:
PvScsiFreeRings (Dev);
RestorePciAttributes:
|