Re: [dpdk-dev] [PATCH v3] net/i40e: enable MAC address as FDIR input set

["Xing, Beilei" <beilei.xing@intel.com>]

-----Original Message-----
From: Cui, LunyuanX <lunyuanx.cui@intel.com> 
Sent: Monday, March 30, 2020 5:06 PM
To: dev@dpdk.org
Cc: Xing, Beilei <beilei.xing@intel.com>; Yang, Qiming <qiming.yang@intel.com>; Wu, Jingjing <jingjing.wu@intel.com>; Cui, LunyuanX <lunyuanx.cui@intel.com>
Subject: [PATCH v3] net/i40e: enable MAC address as FDIR input set

FVL enable src MAC address and dst MAC address as FDIR's input set for ipv4-other. When OVS-DPDK is working as a pure L2 switch, enable MAC address as FDIR input set with Mark+RSS action would help the performance speed up. And FVL FDIR supports to change input set with MAC address.

Signed-off-by: Lunyuan Cui <lunyuanx.cui@intel.com>

---
v3:
 - Enable MAC address as FDIR's input set
v2:
 - Enable src MAC address as FDIR's input set
---
 doc/guides/rel_notes/release_20_05.rst |  6 +++
 drivers/net/i40e/i40e_ethdev.c         |  1 +
 drivers/net/i40e/i40e_ethdev.h         |  9 +++-
 drivers/net/i40e/i40e_fdir.c           |  6 +++
 drivers/net/i40e/i40e_flow.c           | 65 +++++++++++++++++++-------
 5 files changed, 68 insertions(+), 19 deletions(-)

diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst
index 000bbf501..7139288d6 100644
--- a/doc/guides/rel_notes/release_20_05.rst
+++ b/doc/guides/rel_notes/release_20_05.rst
@@ -62,6 +62,12 @@ New Features
 
   * Added support for matching on IPv4 Time To Live and IPv6 Hop Limit.
 
+* **Updated Intel i40e driver.**
+
+  Updated i40e PMD with new features and improvements, including:
+
+  * enable MAC address as FDIR input set for ipv4-other.
+
 
 Removed Items
 -------------
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 9539b0470..041627ef5 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -9373,6 +9373,7 @@ i40e_get_valid_input_set(enum i40e_filter_pctype pctype,
 		I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT |
 		I40E_INSET_SCTP_VT,
 		[I40E_FILTER_PCTYPE_NONF_IPV4_OTHER] =
+		I40E_INSET_DMAC | I40E_INSET_SMAC |
 		I40E_INSET_VLAN_OUTER | I40E_INSET_VLAN_INNER |
 		I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST |
 		I40E_INSET_IPV4_TOS | I40E_INSET_IPV4_PROTO | diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index aac89de91..dbb5d594a 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -544,12 +544,19 @@ struct i40e_ipv6_l2tpv3oip_flow {
 	uint32_t session_id; /* Session ID in big endian. */  };
 
+/* A structure used to define the input for l2 dst type flow */ struct 
+i40e_l2_flow {
+	struct rte_ether_addr dst;
+	struct rte_ether_addr src;
+	uint16_t ether_type;          /**< Ether type in big endian */
+};
+
 /*
  * A union contains the inputs for all types of flow
  * items in flows need to be in big endian
  */
 union i40e_fdir_flow {
-	struct rte_eth_l2_flow          l2_flow;
+	struct i40e_l2_flow             l2_flow;
 	struct rte_eth_udpv4_flow       udp4_flow;
 	struct rte_eth_tcpv4_flow       tcp4_flow;
 	struct rte_eth_sctpv4_flow      sctp4_flow;
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c index 931f25976..2f24615b6 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1062,7 +1062,13 @@ i40e_flow_fdir_fill_eth_ip_head(struct i40e_pf *pf,
 		[I40E_FILTER_PCTYPE_NONF_IPV6_OTHER] = IPPROTO_NONE,
 	};
 
+	rte_memcpy(raw_pkt, &fdir_input->flow.l2_flow.dst,
+		sizeof(struct rte_ether_addr));
+	rte_memcpy(raw_pkt + sizeof(struct rte_ether_addr),
+		&fdir_input->flow.l2_flow.src,
+		sizeof(struct rte_ether_addr));
 	raw_pkt += 2 * sizeof(struct rte_ether_addr);
+
 	if (vlan && fdir_input->flow_ext.vlan_tci) {
 		rte_memcpy(raw_pkt, vlan_frame, sizeof(vlan_frame));
 		rte_memcpy(raw_pkt + sizeof(uint16_t), diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index d877ac250..65922b39c 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -2626,8 +2626,24 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
 			}
 
 			if (eth_spec && eth_mask) {
-				if (!rte_is_zero_ether_addr(&eth_mask->src) ||
-				    !rte_is_zero_ether_addr(&eth_mask->dst)) {
+				if (rte_is_broadcast_ether_addr(&eth_mask->dst) &&
+					rte_is_zero_ether_addr(&eth_mask->src)) {
+					filter->input.flow.l2_flow.dst =
+						eth_spec->dst;
+					input_set |= I40E_INSET_DMAC;
+				} else if (rte_is_zero_ether_addr(&eth_mask->dst) &&
+					rte_is_broadcast_ether_addr(&eth_mask->src)) {
+					filter->input.flow.l2_flow.src =
+						eth_spec->src;
+					input_set |= I40E_INSET_SMAC;
+				} else if (rte_is_broadcast_ether_addr(&eth_mask->dst) &&
+					rte_is_broadcast_ether_addr(&eth_mask->src)) {
+					filter->input.flow.l2_flow.dst =
+						eth_spec->dst;
+					filter->input.flow.l2_flow.src =
+						eth_spec->src;
+					input_set |= (I40E_INSET_DMAC | I40E_INSET_SMAC);
+				} else {
 					rte_flow_error_set(error, EINVAL,
 						      RTE_FLOW_ERROR_TYPE_ITEM,
 						      item,
@@ -2635,7 +2651,8 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
 					return -rte_errno;
 				}
 			}
-			if (eth_spec && eth_mask && eth_mask->type) {
+			if (eth_spec && eth_mask &&
+			next_type == RTE_FLOW_ITEM_TYPE_END) {

What's the purpose here?

 				if (eth_mask->type != RTE_BE16(0xffff)) {
 					rte_flow_error_set(error, EINVAL,
 						      RTE_FLOW_ERROR_TYPE_ITEM,
@@ -2750,21 +2767,33 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
 				    frag_off & RTE_IPV4_HDR_MF_FLAG)
 					pctype = I40E_FILTER_PCTYPE_FRAG_IPV4;
 
-				/* Get the filter info */
-				filter->input.flow.ip4_flow.proto =
-					ipv4_spec->hdr.next_proto_id;
-				filter->input.flow.ip4_flow.tos =
-					ipv4_spec->hdr.type_of_service;
-				filter->input.flow.ip4_flow.ttl =
-					ipv4_spec->hdr.time_to_live;
-				filter->input.flow.ip4_flow.src_ip =
-					ipv4_spec->hdr.src_addr;
-				filter->input.flow.ip4_flow.dst_ip =
-					ipv4_spec->hdr.dst_addr;
-
-				filter->input.flow_ext.inner_ip = false;
-				filter->input.flow_ext.oip_type =
-					I40E_FDIR_IPTYPE_IPV4;
+				if (input_set & (I40E_INSET_DMAC | I40E_INSET_SMAC)) {
+					if (input_set & (I40E_INSET_IPV4_SRC |
+						I40E_INSET_IPV4_DST | I40E_INSET_IPV4_TOS |
+						I40E_INSET_IPV4_TTL | I40E_INSET_IPV4_PROTO)) {
+						rte_flow_error_set(error, EINVAL,
+							RTE_FLOW_ERROR_TYPE_ITEM,
+							item,
+							"Invalid MAC_addr mask.");
+						return -rte_errno;
+					}

I don't think it must be exclusive between src mac/dst mac and other IPv4 fields.

+				} else {
+					/* Get the filter info */
+					filter->input.flow.ip4_flow.proto =
+						ipv4_spec->hdr.next_proto_id;
+					filter->input.flow.ip4_flow.tos =
+						ipv4_spec->hdr.type_of_service;
+					filter->input.flow.ip4_flow.ttl =
+						ipv4_spec->hdr.time_to_live;
+					filter->input.flow.ip4_flow.src_ip =
+						ipv4_spec->hdr.src_addr;
+					filter->input.flow.ip4_flow.dst_ip =
+						ipv4_spec->hdr.dst_addr;
+
+					filter->input.flow_ext.inner_ip = false;
+					filter->input.flow_ext.oip_type =
+						I40E_FDIR_IPTYPE_IPV4;
+				}
 			} else if (!ipv4_spec && !ipv4_mask && !outer_ip) {
 				filter->input.flow_ext.inner_ip = true;
 				filter->input.flow_ext.iip_type =
--
2.17.1