[edk2-devel] [PATCH edk2-platforms v2 2/4] Silicon/Broadcom/BcmGenetDxe: add support for broadcast filtering
Ard Biesheuvel
ard.biesheuvel at arm.com
Sun May 10 10:42:57 UTC 2020
Add a helper to configure the first MDF filter for filtering the
broadcast Ethernet address.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel at arm.com>
---
Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.h | 7 ++++++
Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c | 24 ++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.h b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.h
index 2e7b78322bcd..1dc7a51a1ca6 100644
--- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.h
+++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.h
@@ -107,6 +107,7 @@
#define GENET_UMAC_MDF_CTRL 0xe50
#define GENET_UMAC_MDF_ADDR0(n) (0xe54 + (n) * 0x8)
#define GENET_UMAC_MDF_ADDR1(n) (0xe58 + (n) * 0x8)
+#define GENET_MAX_MDF_FILTER 17
#define GENET_DMA_DESC_COUNT 256
#define GENET_DMA_DESC_SIZE 12
@@ -300,6 +301,12 @@ GenetSetPromisc (
IN BOOLEAN Enable
);
+VOID
+GenetEnableBroadcastFilter (
+ IN GENET_PRIVATE_DATA *Genet,
+ IN BOOLEAN Enable
+ );
+
VOID
GenetDmaInitRings (
IN GENET_PRIVATE_DATA *Genet
diff --git a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
index af7c06656433..2176bb451e7d 100644
--- a/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
+++ b/Silicon/Broadcom/Drivers/Net/BcmGenetDxe/GenetUtil.c
@@ -492,6 +492,30 @@ GenetSetPromisc (
GenetMmioWrite (Genet, GENET_UMAC_CMD, Value);
}
+/**
+ Enable the MAC filter for the Ethernet broadcast address
+
+ @param Genet[in] Pointer to GENET_PRIVATE_DATA.
+ @param Enable[in] Promiscuous mode state.
+
+**/
+VOID
+GenetEnableBroadcastFilter (
+ IN GENET_PRIVATE_DATA *Genet,
+ IN BOOLEAN Enable
+ )
+{
+ UINT32 Value;
+
+ Value = (1U << GENET_MAX_MDF_FILTER) - 1;
+ if (Enable) {
+ GenetMmioWrite (Genet, GENET_UMAC_MDF_ADDR0 (0), 0xffff);
+ GenetMmioWrite (Genet, GENET_UMAC_MDF_ADDR1 (0), 0xffffffff);
+ Value &= ~BIT0;
+ }
+ GenetMmioWrite (Genet, GENET_UMAC_MDF_CTRL, Value);
+}
+
/**
Configure DMA TX and RX queues, enabling them.
--
2.17.1
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