[dpdk-dev] [PATCH 08/12] net/iavf: support flow mark in normal data path

[Leyi Rong <leyi.rong@intel.com>]

Support Flow Director mark ID parsing in normal path.

Signed-off-by: Leyi Rong <leyi.rong@intel.com>
---
 drivers/net/iavf/iavf.h      |  3 +++
 drivers/net/iavf/iavf_rxtx.c | 37 ++++++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h
index 1918a67f1..533856f21 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -74,6 +74,9 @@
 #define IAVF_COMMS_PROTO_L2TPV3         0x0000000000000008
 #define IAVF_COMMS_PROTO_ESP            0x0000000000000010
 
+#define IAVF_RX_DESC_EXT_STATUS_FLEXBH_MASK  0x03
+#define IAVF_RX_DESC_EXT_STATUS_FLEXBH_FD_ID 0x01
+
 struct iavf_adapter;
 struct iavf_rx_queue;
 struct iavf_tx_queue;
diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index 5d484d5e9..d941249e3 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -746,6 +746,10 @@ iavf_rxd_to_pkt_flags(uint64_t qword)
 					IAVF_RX_DESC_FLTSTAT_RSS_HASH) ==
 			IAVF_RX_DESC_FLTSTAT_RSS_HASH) ? PKT_RX_RSS_HASH : 0;
 
+	/* Check if FDIR Match */
+	flags |= (qword & (1 << IAVF_RX_DESC_STATUS_FLM_SHIFT) ?
+				PKT_RX_FDIR : 0);
+
 	if (likely((error_bits & IAVF_RX_ERR_BITS) == 0)) {
 		flags |= (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD);
 		return flags;
@@ -766,6 +770,25 @@ iavf_rxd_to_pkt_flags(uint64_t qword)
 	return flags;
 }
 
+static inline uint64_t
+iavf_rxd_build_fdir(volatile union iavf_rx_desc *rxdp, struct rte_mbuf *mb)
+{
+	uint64_t flags = 0;
+	uint16_t flexbh;
+
+	flexbh = (rte_le_to_cpu_32(rxdp->wb.qword2.ext_status) >>
+		IAVF_RX_DESC_EXT_STATUS_FLEXBH_SHIFT) &
+		IAVF_RX_DESC_EXT_STATUS_FLEXBH_MASK;
+
+	if (flexbh == IAVF_RX_DESC_EXT_STATUS_FLEXBH_FD_ID) {
+		mb->hash.fdir.hi =
+			rte_le_to_cpu_32(rxdp->wb.qword3.hi_dword.fd_id);
+		flags |= PKT_RX_FDIR_ID;
+	}
+
+	return flags;
+}
+
 /* Translate the rx flex descriptor status to pkt flags */
 static inline void
 iavf_rxd_to_pkt_fields(struct rte_mbuf *mb,
@@ -782,6 +805,11 @@ iavf_rxd_to_pkt_fields(struct rte_mbuf *mb,
 		mb->hash.rss = rte_le_to_cpu_32(desc->rss_hash);
 	}
 #endif
+
+	if (desc->flow_id != 0xFFFFFFFF) {
+		mb->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
+		mb->hash.fdir.hi = rte_le_to_cpu_32(desc->flow_id);
+	}
 }
 
 #define IAVF_RX_FLEX_ERR0_BITS	\
@@ -917,6 +945,9 @@ iavf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 			rxm->hash.rss =
 				rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
 
+		if (pkt_flags & PKT_RX_FDIR)
+			pkt_flags |= iavf_rxd_build_fdir(&rxd, rxm);
+
 		rxm->ol_flags |= pkt_flags;
 
 		rx_pkts[nb_rx++] = rxm;
@@ -1365,6 +1396,9 @@ iavf_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 			first_seg->hash.rss =
 				rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
 
+		if (pkt_flags & PKT_RX_FDIR)
+			pkt_flags |= iavf_rxd_build_fdir(&rxd, first_seg);
+
 		first_seg->ol_flags |= pkt_flags;
 
 		/* Prefetch data of first segment, if configured to do so. */
@@ -1549,6 +1583,9 @@ iavf_rx_scan_hw_ring(struct iavf_rx_queue *rxq)
 				mb->hash.rss = rte_le_to_cpu_32(
 					rxdp[j].wb.qword0.hi_dword.rss);
 
+			if (pkt_flags & PKT_RX_FDIR)
+				pkt_flags |= iavf_rxd_build_fdir(&rxdp[j], mb);
+
 			mb->ol_flags |= pkt_flags;
 		}
 
-- 
2.17.1