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authorJohn Lo <loj@cisco.com>2020-05-12 22:34:39 -0400
committerDamjan Marion <dmarion@me.com>2020-05-27 17:27:27 +0000
commit4a302ee7c75f3d4fd1a73a9d1f6c34b3bde8d620 (patch)
tree46afc10a5fb0edc511b18ab8cac176458a9e59c0 /src/vnet/ethernet/ethernet.h
parent94f3295d3807ccadbadbc863640af4fc4c224d7f (diff)
ethernet: fix DMAC check and skip unnecessary ones (VPP-1868)
Fix and optimize DMAC check in ethernet-input node to utilize NIC or driver which support L3 DMAC-filtering mode so that DMAC check can be bypassed safely for interfaces/sub-interfaces in L3 mode. Checking of interface in L3-DMAC-filtering state to avoid DMAC check require the following: a) Fix interface driver init sequence for devices which supports L3 DMAC-filtering to indicate its capability and initialize interface to L3 DMAC-filtering state. b) Fix ethernet_set_flags() function and its associated callback flags_change() functions registered by various drivers in interface infra to provide proper L3 DMAC filtering status. Maintain interface/sub-interface L3 config count so DMAC checks can be bypassed if L3 forwarding is not setup on any main/sub-interfaces. Type: fix Ticket: VPP-1868 Signed-off-by: John Lo <loj@cisco.com> Change-Id: I204d90459c13e9e486cfcba4e64e3d479bc9f2ae
Diffstat (limited to 'src/vnet/ethernet/ethernet.h')
-rw-r--r--src/vnet/ethernet/ethernet.h21
1 files changed, 14 insertions, 7 deletions
diff --git a/src/vnet/ethernet/ethernet.h b/src/vnet/ethernet/ethernet.h
index 2f544bbdbaa..afb932931b7 100644
--- a/src/vnet/ethernet/ethernet.h
+++ b/src/vnet/ethernet/ethernet.h
@@ -137,15 +137,22 @@ typedef struct ethernet_interface
{
u32 flags;
- /* Accept all packets (promiscuous mode). */
-#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL (1 << 0)
-#define ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags) \
- (((flags) & ~ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) == 0)
+ /* Top 16 bits for status and bottom 16 bits for set operation */
+#define ETHERNET_INTERFACE_FLAGS_STATUS_MASK (0xffff0000)
+#define ETHERNET_INTERFACE_FLAGS_SET_OPN_MASK (0x0000ffff)
+
+ /* Interface driver/hw is in L3/non-promiscuous mode so packet DMAC
+ would already be filtered */
+#define ETHERNET_INTERFACE_FLAG_STATUS_L3 (1 << 16)
+
+ /* Set interface to default L3 mode */
+#define ETHERNET_INTERFACE_FLAG_DEFAULT_L3 0
+
+ /* Set interface to accept all packets (promiscuous mode). */
+#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL 1
/* Change MTU on interface from hw interface structure */
-#define ETHERNET_INTERFACE_FLAG_MTU (1 << 1)
-#define ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags) \
- ((flags) & ETHERNET_INTERFACE_FLAG_MTU)
+#define ETHERNET_INTERFACE_FLAG_MTU 2
/* Callback, e.g. to turn on/off promiscuous mode */
ethernet_flag_change_function_t *flag_change;