Add the corresponding data structure and logics, to support
the offload of IPv4 item.
Signed-off-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
---
doc/guides/nics/features/nfp.ini | 1 +
doc/guides/rel_notes/release_22_11.rst | 1 +
drivers/net/nfp/flower/nfp_flower_cmsg.h | 38 ++++++++++++++++++
drivers/net/nfp/nfp_flow.c | 68 +++++++++++++++++++++++++++++++-
4 files changed, 107 insertions(+), 1 deletion(-)
@@ -28,6 +28,7 @@ Usage doc = Y
[rte_flow items]
eth = Y
+ipv4 = Y
port_id = Y
vlan = Y
@@ -109,6 +109,7 @@ New Features
* Ethernet
* Single VLAN
+ * IPv4
Add the support of rte_flow actions as follow:
@@ -253,6 +253,44 @@ struct nfp_flower_mac_mpls {
rte_be32_t mpls_lse;
};
+/*
+ * L4 ports (for UDP, TCP, SCTP) (1W/4B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | port_src | port_dst |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_tp_ports {
+ rte_be16_t port_src;
+ rte_be16_t port_dst;
+};
+
+struct nfp_flower_ip_ext {
+ uint8_t tos;
+ uint8_t proto;
+ uint8_t ttl;
+ uint8_t flags;
+};
+
+/*
+ * L3 IPv4 details (3W/12B)
+ * 3 2 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | DSCP |ECN| protocol | ttl | flags |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv4_addr_src |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | ipv4_addr_dst |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+struct nfp_flower_ipv4 {
+ struct nfp_flower_ip_ext ip_ext;
+ rte_be32_t ipv4_src;
+ rte_be32_t ipv4_dst;
+};
+
struct nfp_fl_act_head {
uint8_t jump_id;
uint8_t len_lw;
@@ -534,6 +534,11 @@ struct nfp_mask_id_entry {
PMD_DRV_LOG(DEBUG, "RTE_FLOW_ITEM_TYPE_VLAN detected");
key_ls->vlan = NFP_FLOWER_MASK_VLAN_CFI;
break;
+ case RTE_FLOW_ITEM_TYPE_IPV4:
+ PMD_DRV_LOG(DEBUG, "RTE_FLOW_ITEM_TYPE_IPV4 detected");
+ key_ls->key_layer |= NFP_FLOWER_LAYER_IPV4;
+ key_ls->key_size += sizeof(struct nfp_flower_ipv4);
+ break;
default:
PMD_DRV_LOG(ERR, "Item type %d not supported.", item->type);
return -ENOTSUP;
@@ -674,13 +679,58 @@ struct nfp_mask_id_entry {
return 0;
}
+static int
+nfp_flow_merge_ipv4(struct rte_flow *nfp_flow,
+ char **mbuf_off,
+ const struct rte_flow_item *item,
+ const struct nfp_flow_item_proc *proc,
+ bool is_mask)
+{
+ struct nfp_flower_ipv4 *ipv4;
+ const struct rte_ipv4_hdr *hdr;
+ struct nfp_flower_meta_tci *meta_tci;
+ const struct rte_flow_item_ipv4 *spec;
+ const struct rte_flow_item_ipv4 *mask;
+
+ spec = item->spec;
+ mask = item->mask ? item->mask : proc->mask_default;
+ meta_tci = (struct nfp_flower_meta_tci *)nfp_flow->payload.unmasked_data;
+
+ if (spec == NULL) {
+ PMD_DRV_LOG(DEBUG, "nfp flow merge ipv4: no item->spec!");
+ goto ipv4_end;
+ }
+
+ /*
+ * reserve space for L4 info.
+ * rte_flow has ipv4 before L4 but NFP flower fw requires L4 before ipv4
+ */
+ if (meta_tci->nfp_flow_key_layer & NFP_FLOWER_LAYER_TP)
+ *mbuf_off += sizeof(struct nfp_flower_tp_ports);
+
+ hdr = is_mask ? &mask->hdr : &spec->hdr;
+ ipv4 = (struct nfp_flower_ipv4 *)*mbuf_off;
+
+ ipv4->ip_ext.tos = hdr->type_of_service;
+ ipv4->ip_ext.proto = hdr->next_proto_id;
+ ipv4->ip_ext.ttl = hdr->time_to_live;
+ ipv4->ipv4_src = hdr->src_addr;
+ ipv4->ipv4_dst = hdr->dst_addr;
+
+ipv4_end:
+ *mbuf_off += sizeof(struct nfp_flower_ipv4);
+
+ return 0;
+}
+
/* Graph of supported items and associated process function */
static const struct nfp_flow_item_proc nfp_flow_item_proc_list[] = {
[RTE_FLOW_ITEM_TYPE_END] = {
.next_item = NEXT_ITEM(RTE_FLOW_ITEM_TYPE_ETH),
},
[RTE_FLOW_ITEM_TYPE_ETH] = {
- .next_item = NEXT_ITEM(RTE_FLOW_ITEM_TYPE_VLAN),
+ .next_item = NEXT_ITEM(RTE_FLOW_ITEM_TYPE_VLAN,
+ RTE_FLOW_ITEM_TYPE_IPV4),
.mask_support = &(const struct rte_flow_item_eth){
.hdr = {
.dst_addr.addr_bytes = "\xff\xff\xff\xff\xff\xff",
@@ -694,6 +744,7 @@ struct nfp_mask_id_entry {
.merge = nfp_flow_merge_eth,
},
[RTE_FLOW_ITEM_TYPE_VLAN] = {
+ .next_item = NEXT_ITEM(RTE_FLOW_ITEM_TYPE_IPV4),
.mask_support = &(const struct rte_flow_item_vlan){
.hdr = {
.vlan_tci = RTE_BE16(0xefff),
@@ -705,6 +756,21 @@ struct nfp_mask_id_entry {
.mask_sz = sizeof(struct rte_flow_item_vlan),
.merge = nfp_flow_merge_vlan,
},
+ [RTE_FLOW_ITEM_TYPE_IPV4] = {
+ .mask_support = &(const struct rte_flow_item_ipv4){
+ .hdr = {
+ .type_of_service = 0xff,
+ .fragment_offset = RTE_BE16(0xffff),
+ .time_to_live = 0xff,
+ .next_proto_id = 0xff,
+ .src_addr = RTE_BE32(0xffffffff),
+ .dst_addr = RTE_BE32(0xffffffff),
+ },
+ },
+ .mask_default = &rte_flow_item_ipv4_mask,
+ .mask_sz = sizeof(struct rte_flow_item_ipv4),
+ .merge = nfp_flow_merge_ipv4,
+ },
};
static int