[edk2-devel] [edk2-platforms PATCH 8/8] Marvell/Drivers: Pp2Dxe: Fix Pp2SnpReceive
Marcin Wojtas
mw at semihalf.com
Mon Mar 14 15:38:37 UTC 2022
This patch adds missing parameter's and SNP instance
status checks in SnpReceive callback. Additionally,
the local variables declarations are cleaned-up.
Signed-off-by: Marcin Wojtas <mw at semihalf.com>
---
Silicon/Marvell/Drivers/Net/Pp2Dxe/Pp2Dxe.c | 43 ++++++++++++++++----
1 file changed, 36 insertions(+), 7 deletions(-)
diff --git a/Silicon/Marvell/Drivers/Net/Pp2Dxe/Pp2Dxe.c b/Silicon/Marvell/Drivers/Net/Pp2Dxe/Pp2Dxe.c
index 841a1c8f84..5e463ac932 100644
--- a/Silicon/Marvell/Drivers/Net/Pp2Dxe/Pp2Dxe.c
+++ b/Silicon/Marvell/Drivers/Net/Pp2Dxe/Pp2Dxe.c
@@ -1214,23 +1214,50 @@ Pp2SnpReceive (
)
{
INTN ReceivedPackets;
- PP2DXE_CONTEXT *Pp2Context = INSTANCE_FROM_SNP(This);
- PP2DXE_PORT *Port = &Pp2Context->Port;
- MVPP2_SHARED *Mvpp2Shared = Pp2Context->Port.Priv;
+ PP2DXE_CONTEXT *Pp2Context;
+ PP2DXE_PORT *Port;
UINTN PhysAddr, VirtAddr;
- EFI_STATUS Status = EFI_SUCCESS;
+ EFI_STATUS Status;
EFI_TPL SavedTpl;
UINT32 StatusReg;
INTN PoolId;
UINTN PktLength;
UINT8 *DataPtr;
MVPP2_RX_DESC *RxDesc;
- MVPP2_RX_QUEUE *Rxq = &Port->Rxqs[0];
+ MVPP2_RX_QUEUE *Rxq;
+
+ /* Check input parameters. */
+ if (This == NULL || Buffer == NULL || BufferSize == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ SavedTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ Pp2Context = INSTANCE_FROM_SNP (This);
+ /* Check whether the driver was started and initialized. */
+ if (This->Mode->State != EfiSimpleNetworkInitialized) {
+ switch (This->Mode->State) {
+ case EfiSimpleNetworkStopped:
+ DEBUG ((DEBUG_WARN, "Pp2Dxe%d: not started\n", Pp2Context->Instance));
+ ReturnUnlock (SavedTpl, EFI_NOT_STARTED);
+ case EfiSimpleNetworkStarted:
+ DEBUG ((DEBUG_WARN, "Pp2Dxe%d: not initialized\n", Pp2Context->Instance));
+ ReturnUnlock (SavedTpl, EFI_DEVICE_ERROR);
+ default:
+ DEBUG ((DEBUG_WARN,
+ "Pp2Dxe%d: wrong state: %u\n",
+ Pp2Context->Instance,
+ This->Mode->State));
+ ReturnUnlock (SavedTpl, EFI_DEVICE_ERROR);
+ }
+ }
+
+ Port = &Pp2Context->Port;
ASSERT (Port != NULL);
+ Rxq = &Port->Rxqs[0];
ASSERT (Rxq != NULL);
- SavedTpl = gBS->RaiseTPL (TPL_CALLBACK);
ReceivedPackets = Mvpp2RxqReceived(Port, Rxq->Id);
if (ReceivedPackets == 0) {
@@ -1285,10 +1312,12 @@ Pp2SnpReceive (
*EtherType = NTOHS (*(UINT16 *)(&DataPtr[12]));
}
+ Status = EFI_SUCCESS;
+
drop:
/* Refill: pass packet back to BM */
PoolId = (StatusReg & MVPP2_RXD_BM_POOL_ID_MASK) >> MVPP2_RXD_BM_POOL_ID_OFFS;
- Mvpp2BmPoolPut(Mvpp2Shared, PoolId, PhysAddr, VirtAddr);
+ Mvpp2BmPoolPut (Pp2Context->Port.Priv, PoolId, PhysAddr, VirtAddr);
/* Update counters with 1 packet received and 1 packet refilled */
Mvpp2RxqStatusUpdate(Port, Rxq->Id, 1, 1);
--
2.29.0
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