This patch add support for inner and outer ethernet types for the
E-Switch Flows with tunnels. Inner and outer ethernet type match
can be specified with ethernet items, vlan items, or implicitly
deduced from IP address items. The tcm_info field in Netlink message
tcm structure is filled always with outer protocol.
Cc: sta...@dpdk.org
Signed-off-by: Viacheslav Ovsiienko <viachesl...@mellanox.com>
---
drivers/net/mlx5/mlx5_flow_tcf.c | 127 +++++++++++++++++++++++----------------
1 file changed, 74 insertions(+), 53 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_tcf.c b/drivers/net/mlx5/mlx5_flow_tcf.c
index e70c377..9e5d947 100644
--- a/drivers/net/mlx5/mlx5_flow_tcf.c
+++ b/drivers/net/mlx5/mlx5_flow_tcf.c
@@ -2420,6 +2420,7 @@ struct pedit_parser {
int size = 0;
size += SZ_NLATTR_STRZ_OF("flower") +
+ SZ_NLATTR_TYPE_OF(uint16_t) + /* Outer ether type. */
SZ_NLATTR_NEST + /* TCA_OPTIONS. */
SZ_NLATTR_TYPE_OF(uint32_t); /* TCA_CLS_FLAGS_SKIP_SW. */
if (attr->group > 0)
@@ -2431,26 +2432,22 @@ struct pedit_parser {
case RTE_FLOW_ITEM_TYPE_PORT_ID:
break;
case RTE_FLOW_ITEM_TYPE_ETH:
- size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
- SZ_NLATTR_DATA_OF(ETHER_ADDR_LEN) * 4;
+ size += SZ_NLATTR_DATA_OF(ETHER_ADDR_LEN) * 4;
/* dst/src MAC addr and mask. */
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
- size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
- SZ_NLATTR_TYPE_OF(uint16_t) +
+ size += SZ_NLATTR_TYPE_OF(uint16_t) +
/* VLAN Ether type. */
SZ_NLATTR_TYPE_OF(uint8_t) + /* VLAN prio. */
SZ_NLATTR_TYPE_OF(uint16_t); /* VLAN ID. */
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
- size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
- SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
+ size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
SZ_NLATTR_TYPE_OF(uint32_t) * 4;
/* dst/src IP addr and mask. */
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
- size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
- SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
+ size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN) * 4;
/* dst/src IP addr and mask. */
break;
@@ -3124,9 +3121,9 @@ struct pedit_parser {
struct nlmsghdr *nlh = dev_flow->tcf.nlh;
struct tcmsg *tcm = dev_flow->tcf.tcm;
uint32_t na_act_index_cur;
- bool eth_type_set = 0;
- bool vlan_present = 0;
- bool vlan_eth_type_set = 0;
+ rte_be16_t inner_etype = RTE_BE16(ETH_P_ALL);
+ rte_be16_t outer_etype = RTE_BE16(ETH_P_ALL);
+ rte_be16_t vlan_etype = RTE_BE16(ETH_P_ALL);
bool ip_proto_set = 0;
bool tunnel_outer = 0;
struct nlattr *na_flower;
@@ -3164,8 +3161,7 @@ struct pedit_parser {
* Priority cannot be zero to prevent the kernel from picking one
* automatically.
*/
- tcm->tcm_info = TC_H_MAKE((attr->priority + 1) << 16,
- RTE_BE16(ETH_P_ALL));
+ tcm->tcm_info = TC_H_MAKE((attr->priority + 1) << 16, outer_etype);
if (attr->group > 0)
mnl_attr_put_u32(nlh, TCA_CHAIN, attr->group);
mnl_attr_put_strz(nlh, TCA_KIND, "flower");
@@ -3210,6 +3206,12 @@ struct pedit_parser {
if (mask.eth == &flow_tcf_mask_empty.eth)
break;
spec.eth = items->spec;
+ if (mask.eth->type) {
+ if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
+ inner_etype = spec.eth->type;
+ else
+ outer_etype = spec.eth->type;
+ }
if (tunnel_outer) {
DRV_LOG(WARNING,
"outer L2 addresses cannot be"
@@ -3217,11 +3219,6 @@ struct pedit_parser {
" parameter is ignored");
break;
}
- if (mask.eth->type) {
- mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_ETH_TYPE,
- spec.eth->type);
- eth_type_set = 1;
- }
if (!is_zero_ether_addr(&mask.eth->dst)) {
mnl_attr_put(nlh, TCA_FLOWER_KEY_ETH_DST,
ETHER_ADDR_LEN,
@@ -3252,20 +3249,14 @@ struct pedit_parser {
sizeof(flow_tcf_mask_supported.vlan),
error);
assert(mask.vlan);
- if (!eth_type_set)
- mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_ETH_TYPE,
- RTE_BE16(ETH_P_8021Q));
- eth_type_set = 1;
- vlan_present = 1;
if (mask.vlan == &flow_tcf_mask_empty.vlan)
break;
spec.vlan = items->spec;
- if (mask.vlan->inner_type) {
- mnl_attr_put_u16(nlh,
- TCA_FLOWER_KEY_VLAN_ETH_TYPE,
- spec.vlan->inner_type);
- vlan_eth_type_set = 1;
- }
+ assert(outer_etype == RTE_BE16(ETH_P_ALL) ||
+ outer_etype == RTE_BE16(ETH_P_8021Q));
+ outer_etype = RTE_BE16(ETH_P_8021Q);
+ if (mask.vlan->inner_type)
+ vlan_etype = spec.vlan->inner_type;
if (mask.vlan->tci & RTE_BE16(0xe000))
mnl_attr_put_u8(nlh, TCA_FLOWER_KEY_VLAN_PRIO,
(rte_be_to_cpu_16
@@ -3288,19 +3279,20 @@ struct pedit_parser {
sizeof(flow_tcf_mask_supported.ipv4),
error);
assert(mask.ipv4);
- spec.ipv4 = items->spec;
- if (!tunnel_outer) {
- if (!eth_type_set ||
- (!vlan_eth_type_set && vlan_present))
- mnl_attr_put_u16
- (nlh,
- vlan_present ?
- TCA_FLOWER_KEY_VLAN_ETH_TYPE :
- TCA_FLOWER_KEY_ETH_TYPE,
- RTE_BE16(ETH_P_IP));
- eth_type_set = 1;
- vlan_eth_type_set = 1;
+ if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
+ assert(inner_etype == RTE_BE16(ETH_P_ALL) ||
+ inner_etype == RTE_BE16(ETH_P_IP));
+ inner_etype = RTE_BE16(ETH_P_IP);
+ } else if (outer_etype == RTE_BE16(ETH_P_8021Q)) {
+ assert(vlan_etype == RTE_BE16(ETH_P_ALL) ||
+ vlan_etype == RTE_BE16(ETH_P_IP));
+ vlan_etype = RTE_BE16(ETH_P_IP);
+ } else {
+ assert(outer_etype == RTE_BE16(ETH_P_ALL) ||
+ outer_etype == RTE_BE16(ETH_P_IP));
+ outer_etype = RTE_BE16(ETH_P_IP);
}
+ spec.ipv4 = items->spec;
if (!tunnel_outer && mask.ipv4->hdr.next_proto_id) {
/*
* No way to set IP protocol for outer tunnel
@@ -3371,19 +3363,20 @@ struct pedit_parser {
sizeof(flow_tcf_mask_supported.ipv6),
error);
assert(mask.ipv6);
- spec.ipv6 = items->spec;
- if (!tunnel_outer) {
- if (!eth_type_set ||
- (!vlan_eth_type_set && vlan_present))
- mnl_attr_put_u16
- (nlh,
- vlan_present ?
- TCA_FLOWER_KEY_VLAN_ETH_TYPE :
- TCA_FLOWER_KEY_ETH_TYPE,
- RTE_BE16(ETH_P_IPV6));
- eth_type_set = 1;
- vlan_eth_type_set = 1;
+ if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
+ assert(inner_etype == RTE_BE16(ETH_P_ALL) ||
+ inner_etype == RTE_BE16(ETH_P_IPV6));
+ inner_etype = RTE_BE16(ETH_P_IPV6);
+ } else if (outer_etype == RTE_BE16(ETH_P_8021Q)) {
+ assert(vlan_etype == RTE_BE16(ETH_P_ALL) ||
+ vlan_etype == RTE_BE16(ETH_P_IPV6));
+ vlan_etype = RTE_BE16(ETH_P_IPV6);
+ } else {
+ assert(outer_etype == RTE_BE16(ETH_P_ALL) ||
+ outer_etype == RTE_BE16(ETH_P_IPV6));
+ outer_etype = RTE_BE16(ETH_P_IPV6);
}
+ spec.ipv6 = items->spec;
if (!tunnel_outer && mask.ipv6->hdr.proto) {
/*
* No way to set IP protocol for outer tunnel
@@ -3559,6 +3552,34 @@ struct pedit_parser {
NULL, "item not supported");
}
}
+ /*
+ * Set the ether_type flower key and tc rule protocol:
+ * - if there is nor VLAN neither VXLAN the key is taken from
+ * eth item directly or deduced from L3 items.
+ * - if there is vlan item then key is fixed to 802.1q.
+ * - if there is vxlan item then key is set to inner tunnel type.
+ * - simultaneous vlan and vxlan items are prohibited.
+ */
+ if (outer_etype != RTE_BE16(ETH_P_ALL)) {
+ tcm->tcm_info = TC_H_MAKE((attr->priority + 1) << 16,
+ outer_etype);
+ if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
+ if (inner_etype != RTE_BE16(ETH_P_ALL))
+ mnl_attr_put_u16(nlh,
+ TCA_FLOWER_KEY_ETH_TYPE,
+ inner_etype);
+ } else {
+ mnl_attr_put_u16(nlh,
+ TCA_FLOWER_KEY_ETH_TYPE,
+ outer_etype);
+ if (outer_etype == RTE_BE16(ETH_P_8021Q) &&
+ vlan_etype != RTE_BE16(ETH_P_ALL))
+ mnl_attr_put_u16(nlh,
+ TCA_FLOWER_KEY_VLAN_ETH_TYPE,
+ vlan_etype);
+ }
+ assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
+ }
na_flower_act = mnl_attr_nest_start(nlh, TCA_FLOWER_ACT);
na_act_index_cur = 1;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
--
1.8.3.1
