net/sfc: handle received packet type info from HW

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>

diff --git a/doc/guides/nics/features/sfc_efx.ini b/doc/guides/nics/features/sfc_efx.ini
index ec1d1db..b5887d5 100644 (file)
--- a/doc/guides/nics/features/sfc_efx.ini
+++ b/doc/guides/nics/features/sfc_efx.ini
@@ -15,6 +15,7 @@ Multicast MAC filter = Y
 Flow control         = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
+Packet type parsing  = Y
 Basic stats          = Y
 Extended stats       = Y
 BSD nic_uio          = Y

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 8724eae..1333f8b 100644 (file)
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -67,6 +67,8 @@ SFC EFX PMD has support for:
 
 - IPv4/IPv6 TCP/UDP receive checksum offload
 
+- Received packet type information
+
 
 Non-supported Features
 ----------------------

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 4e49180..469df34 100644 (file)
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -96,6 +96,24 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 }
 
+static const uint32_t *
+sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
+{
+       static const uint32_t ptypes[] = {
+               RTE_PTYPE_L2_ETHER,
+               RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
+               RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
+               RTE_PTYPE_L4_TCP,
+               RTE_PTYPE_L4_UDP,
+               RTE_PTYPE_UNKNOWN
+       };
+
+       if (dev->rx_pkt_burst == sfc_recv_pkts)
+               return ptypes;
+
+       return NULL;
+}
+
 static int
 sfc_dev_configure(struct rte_eth_dev *dev)
 {
@@ -818,6 +836,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .xstats_get                     = sfc_xstats_get,
        .xstats_get_names               = sfc_xstats_get_names,
        .dev_infos_get                  = sfc_dev_infos_get,
+       .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
        .mtu_set                        = sfc_dev_set_mtu,
        .rx_queue_setup                 = sfc_rx_queue_setup,
        .rx_queue_release               = sfc_rx_queue_release,

diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index 4df4132..be8fa23 100644 (file)
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -169,6 +169,18 @@ sfc_rx_desc_flags_to_offload_flags(const unsigned int desc_flags)
        return mbuf_flags;
 }
 
+static uint32_t
+sfc_rx_desc_flags_to_packet_type(const unsigned int desc_flags)
+{
+       return RTE_PTYPE_L2_ETHER |
+               ((desc_flags & EFX_PKT_IPV4) ?
+                       RTE_PTYPE_L3_IPV4_EXT_UNKNOWN : 0) |
+               ((desc_flags & EFX_PKT_IPV6) ?
+                       RTE_PTYPE_L3_IPV6_EXT_UNKNOWN : 0) |
+               ((desc_flags & EFX_PKT_TCP) ? RTE_PTYPE_L4_TCP : 0) |
+               ((desc_flags & EFX_PKT_UDP) ? RTE_PTYPE_L4_UDP : 0);
+}
+
 uint16_t
 sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 {
@@ -222,7 +234,7 @@ sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                rte_pktmbuf_pkt_len(m) = seg_len;
 
                m->ol_flags = sfc_rx_desc_flags_to_offload_flags(desc_flags);
-               m->packet_type = RTE_PTYPE_L2_ETHER;
+               m->packet_type = sfc_rx_desc_flags_to_packet_type(desc_flags);
 
                *rx_pkts++ = m;
                done_pkts++;