[ovs-dev] [PATCH V4 16/17] netdev-offload-dpdk: Support offload of set IPv4 actions
Eli Britstein
elibr at mellanox.com
Mon Dec 16 15:10:46 UTC 2019
Signed-off-by: Eli Britstein <elibr at mellanox.com>
Reviewed-by: Oz Shlomo <ozsh at mellanox.com>
---
Documentation/howto/dpdk.rst | 1 +
NEWS | 4 +--
lib/netdev-offload-dpdk.c | 69 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 72 insertions(+), 2 deletions(-)
diff --git a/Documentation/howto/dpdk.rst b/Documentation/howto/dpdk.rst
index 0e9939ddd..c440bf28e 100644
--- a/Documentation/howto/dpdk.rst
+++ b/Documentation/howto/dpdk.rst
@@ -393,6 +393,7 @@ Supported actions for hardware offload are:
- Output.
- Drop.
- Modification of Ethernet (mod_dl_src/mod_dl_dst).
+- Modification of IPv4 (mod_nw_src/mod_nw_dst/mod_nw_ttl).
Further Reading
---------------
diff --git a/NEWS b/NEWS
index 3ade86d49..297ca6fff 100644
--- a/NEWS
+++ b/NEWS
@@ -26,8 +26,8 @@ Post-v2.12.0
* DPDK ring ports (dpdkr) are deprecated and will be removed in next
releases.
* Add support for DPDK 19.11.
- * Add hardware offload support for output, drop and set MAC actions
- (experimental).
+ * Add hardware offload support for output, drop and set actions of
+ MAC and IPv4 (experimental).
v2.12.0 - 03 Sep 2019
---------------------
diff --git a/lib/netdev-offload-dpdk.c b/lib/netdev-offload-dpdk.c
index 83fb7a2ed..0f0685f4d 100644
--- a/lib/netdev-offload-dpdk.c
+++ b/lib/netdev-offload-dpdk.c
@@ -382,6 +382,29 @@ dump_flow_action(struct ds *s, const struct rte_flow_action *actions)
} else {
ds_put_format(s, " Set-mac-%s = null\n", dirstr);
}
+ } else if (actions->type == RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ||
+ actions->type == RTE_FLOW_ACTION_TYPE_SET_IPV4_DST) {
+ const struct rte_flow_action_set_ipv4 *set_ipv4 = actions->conf;
+ char *dirstr = actions->type == RTE_FLOW_ACTION_TYPE_SET_IPV4_DST
+ ? "dst" : "src";
+
+ ds_put_format(s, "rte flow set-ipv4-%s action:\n", dirstr);
+ if (set_ipv4) {
+ ds_put_format(s,
+ " Set-ipv4-%s: "IP_FMT"\n", dirstr,
+ IP_ARGS(set_ipv4->ipv4_addr));
+ } else {
+ ds_put_format(s, " Set-ipv4-%s = null\n", dirstr);
+ }
+ } else if (actions->type == RTE_FLOW_ACTION_TYPE_SET_TTL) {
+ const struct rte_flow_action_set_ttl *set_ttl = actions->conf;
+
+ ds_put_cstr(s, "rte flow set-ttl action:\n");
+ if (set_ttl) {
+ ds_put_format(s, " Set-ttl: %d\n", set_ttl->ttl_value);
+ } else {
+ ds_put_cstr(s, " Set-ttl = null\n");
+ }
} else {
ds_put_format(s, "unknown rte flow action (%d)\n", actions->type);
}
@@ -888,6 +911,52 @@ parse_set_actions(struct flow_actions *actions,
VLOG_DBG_RL(&error_rl, "Unsupported ETHERNET set action");
return -1;
}
+ } else if (nl_attr_type(sa) == OVS_KEY_ATTR_IPV4) {
+ const struct ovs_key_ipv4 *key = nl_attr_get(sa);
+ const struct ovs_key_ipv4 *mask = masked ?
+ get_mask(sa, struct ovs_key_ipv4) : NULL;
+ struct ovs_key_ipv4 consumed_mask;
+
+ if (masked) {
+ memcpy(&consumed_mask, mask, sizeof consumed_mask);
+ } else {
+ memset(&consumed_mask, 0, sizeof consumed_mask);
+ }
+
+ BUILD_ASSERT(sizeof(struct rte_flow_action_set_ipv4) ==
+ sizeof key->ipv4_src);
+ if (add_set_flow_action(actions, &key->ipv4_src,
+ mask ? &mask->ipv4_src : NULL,
+ sizeof key->ipv4_src,
+ RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC)) {
+ return -1;
+ }
+ memset(&consumed_mask.ipv4_src, 0, sizeof consumed_mask.ipv4_src);
+
+ BUILD_ASSERT(sizeof(struct rte_flow_action_set_ipv4) ==
+ sizeof key->ipv4_dst);
+ if (add_set_flow_action(actions, &key->ipv4_dst,
+ mask ? &mask->ipv4_dst : NULL,
+ sizeof key->ipv4_dst,
+ RTE_FLOW_ACTION_TYPE_SET_IPV4_DST)) {
+ return -1;
+ }
+ memset(&consumed_mask.ipv4_dst, 0, sizeof consumed_mask.ipv4_dst);
+
+ BUILD_ASSERT(sizeof(struct rte_flow_action_set_ttl) ==
+ sizeof key->ipv4_ttl);
+ if (add_set_flow_action(actions, &key->ipv4_ttl,
+ mask ? &mask->ipv4_ttl : NULL,
+ sizeof key->ipv4_ttl,
+ RTE_FLOW_ACTION_TYPE_SET_TTL)) {
+ return -1;
+ }
+ memset(&consumed_mask.ipv4_ttl, 0, sizeof consumed_mask.ipv4_ttl);
+
+ if (!is_all_zeros(&consumed_mask, sizeof consumed_mask)) {
+ VLOG_DBG_RL(&error_rl, "Unsupported IPv4 set action");
+ return -1;
+ }
} else {
VLOG_DBG_RL(&error_rl,
"Unsupported set action type=%d", nl_attr_type(sa));
--
2.14.5
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