ixgbe: Extend cls_u32 offload to support UDP headers
Added support to match on UDP fields in the transport layer.
Extended core logic to support multiple headers.
Verified with the following filters :
handle 1: u32 divisor 1
u32 ht 800: order 1 link 1: \
offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 6 ff
u32 ht 1: order 2 \
match tcp src 1024 ffff match tcp dst 23 ffff action drop
handle 2: u32 divisor 1
u32 ht 800: order 3 link 2: \
offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 17 ff
u32 ht 2: order 4 \
match udp src 1025 ffff match udp dst 24 ffff action drop
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_model.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_model.h
index 74c53ad..60adde5 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_model.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_model.h
@@ -82,6 +82,12 @@
{ .val = NULL } /* terminal node */
};
+static struct ixgbe_mat_field ixgbe_udp_fields[] = {
+ {.off = 0, .val = ixgbe_mat_prgm_ports,
+ .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
+ { .val = NULL } /* terminal node */
+};
+
struct ixgbe_nexthdr {
/* offset, shift, and mask of position to next header */
unsigned int o;
@@ -98,6 +104,8 @@
static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
{ .o = 0, .s = 6, .m = 0xf,
.off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
+ { .o = 0, .s = 6, .m = 0xf,
+ .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
{ .jump = NULL } /* terminal node */
};
#endif /* _IXGBE_MODEL_H_ */