diff mbox series

[v4,3/4] net/iavf: support RSS hash for IP fragment

Message ID 20210413081032.60509-4-jia.guo@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Qi Zhang
Headers show
Series support flow for IP fragment in IAVF | expand

Checks

Context Check Description
ci/checkpatch warning coding style issues

Commit Message

Guo, Jia April 13, 2021, 8:10 a.m. UTC
New pattern and RSS hash flow parsing are added to handle fragmented
IPv4/IPv6  packet.

Signed-off-by: Ting Xu <ting.xu@intel.com>
Signed-off-by: Jeff Guo <jia.guo@intel.com>
---
 drivers/net/iavf/iavf_generic_flow.c | 24 ++++++++
 drivers/net/iavf/iavf_generic_flow.h |  3 +
 drivers/net/iavf/iavf_hash.c         | 83 ++++++++++++++++++++++++----
 3 files changed, 100 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/iavf/iavf_generic_flow.c b/drivers/net/iavf/iavf_generic_flow.c
index 8635ff83ca..242bb4abc5 100644
--- a/drivers/net/iavf/iavf_generic_flow.c
+++ b/drivers/net/iavf/iavf_generic_flow.c
@@ -219,6 +219,30 @@  enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6[] = {
 	RTE_FLOW_ITEM_TYPE_END,
 };
 
+enum rte_flow_item_type iavf_pattern_eth_ipv6_frag_ext[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_frag_ext[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_frag_ext[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
 enum rte_flow_item_type iavf_pattern_eth_ipv6_udp[] = {
 	RTE_FLOW_ITEM_TYPE_ETH,
 	RTE_FLOW_ITEM_TYPE_IPV6,
diff --git a/drivers/net/iavf/iavf_generic_flow.h b/drivers/net/iavf/iavf_generic_flow.h
index 005eeb3553..32932557ca 100644
--- a/drivers/net/iavf/iavf_generic_flow.h
+++ b/drivers/net/iavf/iavf_generic_flow.h
@@ -203,6 +203,9 @@  extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_icmp[];
 extern enum rte_flow_item_type iavf_pattern_eth_ipv6[];
 extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6[];
 extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_frag_ext[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_frag_ext[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_frag_ext[];
 extern enum rte_flow_item_type iavf_pattern_eth_ipv6_udp[];
 extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_udp[];
 extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_udp[];
diff --git a/drivers/net/iavf/iavf_hash.c b/drivers/net/iavf/iavf_hash.c
index d8d22f8009..5d3d62839b 100644
--- a/drivers/net/iavf/iavf_hash.c
+++ b/drivers/net/iavf/iavf_hash.c
@@ -112,6 +112,10 @@  iavf_hash_parse_pattern_action(struct iavf_adapter *ad,
 	FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | \
 	FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), {BUFF_NOUSED} }
 
+#define proto_hdr_ipv6_frag { \
+	VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG, \
+	FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID), {BUFF_NOUSED} }
+
 #define proto_hdr_ipv6_with_prot { \
 	VIRTCHNL_PROTO_HDR_IPV6, \
 	FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | \
@@ -190,6 +194,12 @@  struct virtchnl_proto_hdrs outer_ipv6_tmplt = {
 	{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6}
 };
 
+struct virtchnl_proto_hdrs outer_ipv6_frag_tmplt = {
+	TUNNEL_LEVEL_OUTER, 5,
+	{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
+	 proto_hdr_ipv6, proto_hdr_ipv6_frag}
+};
+
 struct virtchnl_proto_hdrs outer_ipv6_udp_tmplt = {
 	TUNNEL_LEVEL_OUTER, 5,
 	{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan,
@@ -303,7 +313,8 @@  struct virtchnl_proto_hdrs ipv4_ecpri_tmplt = {
 /* rss type super set */
 
 /* IPv4 outer */
-#define IAVF_RSS_TYPE_OUTER_IPV4	(ETH_RSS_ETH | ETH_RSS_IPV4)
+#define IAVF_RSS_TYPE_OUTER_IPV4	(ETH_RSS_ETH | ETH_RSS_IPV4 | \
+					 ETH_RSS_FRAG_IPV4)
 #define IAVF_RSS_TYPE_OUTER_IPV4_UDP	(IAVF_RSS_TYPE_OUTER_IPV4 | \
 					 ETH_RSS_NONFRAG_IPV4_UDP)
 #define IAVF_RSS_TYPE_OUTER_IPV4_TCP	(IAVF_RSS_TYPE_OUTER_IPV4 | \
@@ -312,6 +323,8 @@  struct virtchnl_proto_hdrs ipv4_ecpri_tmplt = {
 					 ETH_RSS_NONFRAG_IPV4_SCTP)
 /* IPv6 outer */
 #define IAVF_RSS_TYPE_OUTER_IPV6	(ETH_RSS_ETH | ETH_RSS_IPV6)
+#define IAVF_RSS_TYPE_OUTER_IPV6_FRAG	(IAVF_RSS_TYPE_OUTER_IPV6 | \
+					 ETH_RSS_FRAG_IPV6)
 #define IAVF_RSS_TYPE_OUTER_IPV6_UDP	(IAVF_RSS_TYPE_OUTER_IPV6 | \
 					 ETH_RSS_NONFRAG_IPV6_UDP)
 #define IAVF_RSS_TYPE_OUTER_IPV6_TCP	(IAVF_RSS_TYPE_OUTER_IPV6 | \
@@ -330,6 +343,8 @@  struct virtchnl_proto_hdrs ipv4_ecpri_tmplt = {
 /* VLAN IPv6 */
 #define IAVF_RSS_TYPE_VLAN_IPV6		(IAVF_RSS_TYPE_OUTER_IPV6 | \
 					 ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
+#define IAVF_RSS_TYPE_VLAN_IPV6_FRAG	(IAVF_RSS_TYPE_OUTER_IPV6_FRAG | \
+					 ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 #define IAVF_RSS_TYPE_VLAN_IPV6_UDP	(IAVF_RSS_TYPE_OUTER_IPV6_UDP | \
 					 ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
 #define IAVF_RSS_TYPE_VLAN_IPV6_TCP	(IAVF_RSS_TYPE_OUTER_IPV6_TCP | \
@@ -415,10 +430,12 @@  static struct iavf_pattern_match_item iavf_hash_pattern_list[] = {
 	{iavf_pattern_eth_ipv4_ecpri,			ETH_RSS_ECPRI,			&ipv4_ecpri_tmplt},
 	/* IPv6 */
 	{iavf_pattern_eth_ipv6,				IAVF_RSS_TYPE_OUTER_IPV6,	&outer_ipv6_tmplt},
+	{iavf_pattern_eth_ipv6_frag_ext,		IAVF_RSS_TYPE_OUTER_IPV6_FRAG,	&outer_ipv6_frag_tmplt},
 	{iavf_pattern_eth_ipv6_udp,			IAVF_RSS_TYPE_OUTER_IPV6_UDP,	&outer_ipv6_udp_tmplt},
 	{iavf_pattern_eth_ipv6_tcp,			IAVF_RSS_TYPE_OUTER_IPV6_TCP,	&outer_ipv6_tcp_tmplt},
 	{iavf_pattern_eth_ipv6_sctp,			IAVF_RSS_TYPE_OUTER_IPV6_SCTP,	&outer_ipv6_sctp_tmplt},
 	{iavf_pattern_eth_vlan_ipv6,			IAVF_RSS_TYPE_VLAN_IPV6,	&outer_ipv6_tmplt},
+	{iavf_pattern_eth_vlan_ipv6_frag_ext,		IAVF_RSS_TYPE_OUTER_IPV6_FRAG,	&outer_ipv6_frag_tmplt},
 	{iavf_pattern_eth_vlan_ipv6_udp,		IAVF_RSS_TYPE_VLAN_IPV6_UDP,	&outer_ipv6_udp_tmplt},
 	{iavf_pattern_eth_vlan_ipv6_tcp,		IAVF_RSS_TYPE_VLAN_IPV6_TCP,	&outer_ipv6_tcp_tmplt},
 	{iavf_pattern_eth_vlan_ipv6_sctp,		IAVF_RSS_TYPE_VLAN_IPV6_SCTP,	&outer_ipv6_sctp_tmplt},
@@ -626,6 +643,29 @@  do { \
 	REFINE_PROTO_FLD(ADD, fld_2);	\
 } while (0)
 
+static void
+iavf_hash_add_fragment_hdr(struct virtchnl_proto_hdrs *hdrs, int layer)
+{
+	struct virtchnl_proto_hdr *hdr1;
+	struct virtchnl_proto_hdr *hdr2;
+	int i;
+
+	if (layer < 0 || layer > hdrs->count)
+		return;
+
+	/* shift headers layer */
+	for (i = hdrs->count; i >= layer; i--) {
+		hdr1 = &hdrs->proto_hdr[i];
+		hdr2 = &hdrs->proto_hdr[i - 1];
+		*hdr1 = *hdr2;
+	}
+
+	/* adding dummy fragment header */
+	hdr1 = &hdrs->proto_hdr[layer];
+	VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, IPV4_FRAG);
+	hdrs->count = ++layer;
+}
+
 /* refine proto hdrs base on l2, l3, l4 rss type */
 static void
 iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
@@ -647,17 +687,19 @@  iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 			break;
 		case VIRTCHNL_PROTO_HDR_IPV4:
 			if (rss_type &
-			    (ETH_RSS_IPV4 |
+			    (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
 			     ETH_RSS_NONFRAG_IPV4_UDP |
 			     ETH_RSS_NONFRAG_IPV4_TCP |
 			     ETH_RSS_NONFRAG_IPV4_SCTP)) {
-				if (rss_type & ETH_RSS_L3_SRC_ONLY) {
+				if (rss_type & ETH_RSS_FRAG_IPV4) {
+					iavf_hash_add_fragment_hdr(proto_hdrs, i + 1);
+				} else if (rss_type & ETH_RSS_L3_SRC_ONLY) {
 					REFINE_PROTO_FLD(DEL, IPV4_DST);
 				} else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 					REFINE_PROTO_FLD(DEL, IPV4_SRC);
 				} else if (rss_type &
-					 (ETH_RSS_L4_SRC_ONLY |
-					  ETH_RSS_L4_DST_ONLY)) {
+					   (ETH_RSS_L4_SRC_ONLY |
+					    ETH_RSS_L4_DST_ONLY)) {
 					REFINE_PROTO_FLD(DEL, IPV4_DST);
 					REFINE_PROTO_FLD(DEL, IPV4_SRC);
 				}
@@ -665,9 +707,21 @@  iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 				hdr->field_selector = 0;
 			}
 			break;
+		case VIRTCHNL_PROTO_HDR_IPV4_FRAG:
+			if (rss_type &
+			    (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
+			     ETH_RSS_NONFRAG_IPV4_UDP |
+			     ETH_RSS_NONFRAG_IPV4_TCP |
+			     ETH_RSS_NONFRAG_IPV4_SCTP)) {
+				if (rss_type & ETH_RSS_FRAG_IPV4)
+					REFINE_PROTO_FLD(ADD, IPV4_FRAG_PKID);
+			} else {
+				hdr->field_selector = 0;
+			}
+			break;
 		case VIRTCHNL_PROTO_HDR_IPV6:
 			if (rss_type &
-			    (ETH_RSS_IPV6 |
+			    (ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
 			     ETH_RSS_NONFRAG_IPV6_UDP |
 			     ETH_RSS_NONFRAG_IPV6_TCP |
 			     ETH_RSS_NONFRAG_IPV6_SCTP)) {
@@ -676,8 +730,8 @@  iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 				} else if (rss_type & ETH_RSS_L3_DST_ONLY) {
 					REFINE_PROTO_FLD(DEL, IPV6_SRC);
 				} else if (rss_type &
-					 (ETH_RSS_L4_SRC_ONLY |
-					  ETH_RSS_L4_DST_ONLY)) {
+					   (ETH_RSS_L4_SRC_ONLY |
+					    ETH_RSS_L4_DST_ONLY)) {
 					REFINE_PROTO_FLD(DEL, IPV6_DST);
 					REFINE_PROTO_FLD(DEL, IPV6_SRC);
 				}
@@ -692,6 +746,13 @@  iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
 					REPALCE_PROTO_FLD(IPV6_DST,
 							  IPV6_PREFIX64_DST);
 			}
+			break;
+		case VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG:
+			if (rss_type & ETH_RSS_FRAG_IPV6)
+				REFINE_PROTO_FLD(ADD, IPV6_EH_FRAG_PKID);
+			else
+				hdr->field_selector = 0;
+
 			break;
 		case VIRTCHNL_PROTO_HDR_UDP:
 			if (rss_type &
@@ -885,8 +946,10 @@  struct rss_attr_type {
 				 ETH_RSS_NONFRAG_IPV6_TCP	| \
 				 ETH_RSS_NONFRAG_IPV6_SCTP)
 
-#define VALID_RSS_IPV4		(ETH_RSS_IPV4 | VALID_RSS_IPV4_L4)
-#define VALID_RSS_IPV6		(ETH_RSS_IPV6 | VALID_RSS_IPV6_L4)
+#define VALID_RSS_IPV4		(ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | \
+				 VALID_RSS_IPV4_L4)
+#define VALID_RSS_IPV6		(ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | \
+				 VALID_RSS_IPV6_L4)
 #define VALID_RSS_L3		(VALID_RSS_IPV4 | VALID_RSS_IPV6)
 #define VALID_RSS_L4		(VALID_RSS_IPV4_L4 | VALID_RSS_IPV6_L4)