From: Alvin Zhang <alvinx.zhang@intel.com>
Date: Fri, 24 Sep 2021 09:53:41 +0000 (+0800)
Subject: net/ice: support IPv4/L4 checksum RSS offload
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e495e930a9b65f70ba810a8d6b5e2fb0fd0f483b;p=dpdk.git

net/ice: support IPv4/L4 checksum RSS offload

Add supports for RSS_IPV4_CHKSUM & RSS_L4_CHKSUM RSS offload types
in RSS flow.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---

diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst
index d4c66d8012..d7e0e44c1a 100644
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -80,6 +80,7 @@ New Features
 * **Updated Intel ice driver.**
 
   * Added 1PPS out support by a devargs.
+  * Added IPv4 and L4 (TCP/UDP/SCTP) checksum hash support in RSS flow.
 
 * **Updated Marvell cnxk ethdev driver.**
 
diff --git a/drivers/net/ice/ice_hash.c b/drivers/net/ice/ice_hash.c
index 545bf1bb5d..20a3204fab 100644
--- a/drivers/net/ice/ice_hash.c
+++ b/drivers/net/ice/ice_hash.c
@@ -374,13 +374,17 @@ struct ice_rss_hash_cfg eth_tmplt = {
 
 /* IPv4 */
 #define ICE_RSS_TYPE_ETH_IPV4		(ETH_RSS_ETH | ETH_RSS_IPV4 | \
-					 ETH_RSS_FRAG_IPV4)
+					 ETH_RSS_FRAG_IPV4 | \
+					 ETH_RSS_IPV4_CHKSUM)
 #define ICE_RSS_TYPE_ETH_IPV4_UDP	(ICE_RSS_TYPE_ETH_IPV4 | \
-					 ETH_RSS_NONFRAG_IPV4_UDP)
+					 ETH_RSS_NONFRAG_IPV4_UDP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_ETH_IPV4_TCP	(ICE_RSS_TYPE_ETH_IPV4 | \
-					 ETH_RSS_NONFRAG_IPV4_TCP)
+					 ETH_RSS_NONFRAG_IPV4_TCP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_ETH_IPV4_SCTP	(ICE_RSS_TYPE_ETH_IPV4 | \
-					 ETH_RSS_NONFRAG_IPV4_SCTP)
+					 ETH_RSS_NONFRAG_IPV4_SCTP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_IPV4		ETH_RSS_IPV4
 #define ICE_RSS_TYPE_IPV4_UDP		(ETH_RSS_IPV4 | \
 					 ETH_RSS_NONFRAG_IPV4_UDP)
@@ -394,11 +398,14 @@ struct ice_rss_hash_cfg eth_tmplt = {
 #define ICE_RSS_TYPE_ETH_IPV6_FRAG	(ETH_RSS_ETH | ETH_RSS_IPV6 | \
 					 ETH_RSS_FRAG_IPV6)
 #define ICE_RSS_TYPE_ETH_IPV6_UDP	(ICE_RSS_TYPE_ETH_IPV6 | \
-					 ETH_RSS_NONFRAG_IPV6_UDP)
+					 ETH_RSS_NONFRAG_IPV6_UDP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_ETH_IPV6_TCP	(ICE_RSS_TYPE_ETH_IPV6 | \
-					 ETH_RSS_NONFRAG_IPV6_TCP)
+					 ETH_RSS_NONFRAG_IPV6_TCP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_ETH_IPV6_SCTP	(ICE_RSS_TYPE_ETH_IPV6 | \
-					 ETH_RSS_NONFRAG_IPV6_SCTP)
+					 ETH_RSS_NONFRAG_IPV6_SCTP | \
+					 ETH_RSS_L4_CHKSUM)
 #define ICE_RSS_TYPE_IPV6		ETH_RSS_IPV6
 #define ICE_RSS_TYPE_IPV6_UDP		(ETH_RSS_IPV6 | \
 					 ETH_RSS_NONFRAG_IPV6_UDP)
@@ -689,6 +696,9 @@ ice_refine_hash_cfg_l234(struct ice_rss_hash_cfg *hash_cfg,
 		} else {
 			*hash_flds &= ~ICE_FLOW_HASH_IPV4;
 		}
+
+		if (rss_type & ETH_RSS_IPV4_CHKSUM)
+			*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM);
 	}
 
 	if (*addl_hdrs & ICE_FLOW_SEG_HDR_IPV6) {
@@ -765,6 +775,9 @@ ice_refine_hash_cfg_l234(struct ice_rss_hash_cfg *hash_cfg,
 		} else {
 			*hash_flds &= ~ICE_FLOW_HASH_UDP_PORT;
 		}
+
+		if (rss_type & ETH_RSS_L4_CHKSUM)
+			*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_CHKSUM);
 	}
 
 	if (*addl_hdrs & ICE_FLOW_SEG_HDR_TCP) {
@@ -782,6 +795,9 @@ ice_refine_hash_cfg_l234(struct ice_rss_hash_cfg *hash_cfg,
 		} else {
 			*hash_flds &= ~ICE_FLOW_HASH_TCP_PORT;
 		}
+
+		if (rss_type & ETH_RSS_L4_CHKSUM)
+			*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_CHKSUM);
 	}
 
 	if (*addl_hdrs & ICE_FLOW_SEG_HDR_SCTP) {
@@ -799,6 +815,9 @@ ice_refine_hash_cfg_l234(struct ice_rss_hash_cfg *hash_cfg,
 		} else {
 			*hash_flds &= ~ICE_FLOW_HASH_SCTP_PORT;
 		}
+
+		if (rss_type & ETH_RSS_L4_CHKSUM)
+			*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_CHKSUM);
 	}
 
 	if (*addl_hdrs & ICE_FLOW_SEG_HDR_L2TPV3) {