[dpdk-dev] [PATCH v3 07/11] net/iavf: support flow mark in normal data path

[Leyi Rong]

Support Flow Director mark ID parsing in normal path.

Signed-off-by: Leyi Rong <leyi.r...@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 0cd0117c2..b63efd4e8 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -67,6 +67,9 @@
 #define IAVF_48_BIT_WIDTH (CHAR_BIT * 6)
 #define IAVF_48_BIT_MASK  RTE_LEN2MASK(IAVF_48_BIT_WIDTH, uint64_t)
 
+#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 09ce5e3f3..725dd9e45 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -756,6 +756,10 @@ 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;
@@ -776,6 +780,25 @@ 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,
@@ -792,6 +815,11 @@ 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 \
@@ -951,6 +979,9 @@ 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;
@@ -1349,6 +1380,9 @@ 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. */
@@ -1515,6 +1549,9 @@ 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