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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>
This commit is contained in:
Amritha Nambiar 2016-03-09 18:32:16 -05:00 committed by Jeff Kirsher
parent dbd15b8f9c
commit 4ae7834221
2 changed files with 18 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -8257,19 +8257,20 @@ static int ixgbe_configure_clsu32(struct ixgbe_adapter *adapter,
return -EINVAL;
for (i = 0; nexthdr[i].jump; i++) {
if (nexthdr->o != cls->knode.sel->offoff ||
nexthdr->s != cls->knode.sel->offshift ||
nexthdr->m != cls->knode.sel->offmask ||
if (nexthdr[i].o != cls->knode.sel->offoff ||
nexthdr[i].s != cls->knode.sel->offshift ||
nexthdr[i].m != cls->knode.sel->offmask ||
/* do not support multiple key jumps its just mad */
cls->knode.sel->nkeys > 1)
return -EINVAL;
if (nexthdr->off != cls->knode.sel->keys[0].off ||
nexthdr->val != cls->knode.sel->keys[0].val ||
nexthdr->mask != cls->knode.sel->keys[0].mask)
return -EINVAL;
adapter->jump_tables[link_uhtid] = nexthdr->jump;
if (nexthdr[i].off == cls->knode.sel->keys[0].off &&
nexthdr[i].val == cls->knode.sel->keys[0].val &&
nexthdr[i].mask == cls->knode.sel->keys[0].mask) {
adapter->jump_tables[link_uhtid] =
nexthdr[i].jump;
break;
}
}
return 0;
}

8
drivers/net/ethernet/intel/ixgbe/ixgbe_model.h
View File

@ -82,6 +82,12 @@ static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
{ .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 @@ struct ixgbe_nexthdr {
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_ */