From 0849ac3b61226b8e7040115a26c63cec5ca106f3 Mon Sep 17 00:00:00 2001
From: Pascal Mazon <pascal.mazon@6wind.com>
Date: Wed, 15 Mar 2017 15:48:18 +0100
Subject: [PATCH] net/tap: add packet type management

Advertise packet types supported by the librte_net.

Signed-off-by: Pascal Mazon <pascal.mazon@6wind.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 doc/guides/nics/features/tap.ini |  1 +
 drivers/net/tap/Makefile         |  8 ++++++++
 drivers/net/tap/rte_eth_tap.c    | 35 ++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/doc/guides/nics/features/tap.ini b/doc/guides/nics/features/tap.ini
index 6aa11874e2..7f3f4d661d 100644
--- a/doc/guides/nics/features/tap.ini
+++ b/doc/guides/nics/features/tap.ini
@@ -13,6 +13,7 @@ MTU update           = Y
 Multicast MAC filter = Y
 Speed capabilities   = Y
 Unicast MAC filter   = Y
+Packet type parsing  = Y
 Other kdrv           = Y
 ARMv7                = Y
 ARMv8                = Y
diff --git a/drivers/net/tap/Makefile b/drivers/net/tap/Makefile
index bedd1b738e..ddf87232d3 100644
--- a/drivers/net/tap/Makefile
+++ b/drivers/net/tap/Makefile
@@ -47,4 +47,12 @@ CFLAGS += $(WERROR_FLAGS)
 #
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += rte_eth_tap.c
 
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_eal
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_mempool
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_kvargs
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_TAP) += lib/librte_net
+
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 0a684813ed..7b70d62d55 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -38,6 +38,7 @@
 #include <rte_malloc.h>
 #include <rte_vdev.h>
 #include <rte_kvargs.h>
+#include <rte_net.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -285,6 +286,8 @@ pmd_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 		mbuf->data_len = len;
 		mbuf->pkt_len = len;
 		mbuf->port = rxq->in_port;
+		mbuf->packet_type = rte_net_get_ptype(mbuf, NULL,
+						      RTE_PTYPE_ALL_MASK);
 
 		/* account for the receive frame */
 		bufs[num_rx++] = mbuf;
@@ -762,6 +765,37 @@ tap_set_mc_addr_list(struct rte_eth_dev *dev __rte_unused,
 	return 0;
 }
 
+static const uint32_t*
+tap_dev_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused)
+{
+	static const uint32_t ptypes[] = {
+		RTE_PTYPE_INNER_L2_ETHER,
+		RTE_PTYPE_INNER_L2_ETHER_VLAN,
+		RTE_PTYPE_INNER_L2_ETHER_QINQ,
+		RTE_PTYPE_INNER_L3_IPV4,
+		RTE_PTYPE_INNER_L3_IPV4_EXT,
+		RTE_PTYPE_INNER_L3_IPV6,
+		RTE_PTYPE_INNER_L3_IPV6_EXT,
+		RTE_PTYPE_INNER_L4_FRAG,
+		RTE_PTYPE_INNER_L4_UDP,
+		RTE_PTYPE_INNER_L4_TCP,
+		RTE_PTYPE_INNER_L4_SCTP,
+		RTE_PTYPE_L2_ETHER,
+		RTE_PTYPE_L2_ETHER_VLAN,
+		RTE_PTYPE_L2_ETHER_QINQ,
+		RTE_PTYPE_L3_IPV4,
+		RTE_PTYPE_L3_IPV4_EXT,
+		RTE_PTYPE_L3_IPV6_EXT,
+		RTE_PTYPE_L3_IPV6,
+		RTE_PTYPE_L4_FRAG,
+		RTE_PTYPE_L4_UDP,
+		RTE_PTYPE_L4_TCP,
+		RTE_PTYPE_L4_SCTP,
+	};
+
+	return ptypes;
+}
+
 static const struct eth_dev_ops ops = {
 	.dev_start              = tap_dev_start,
 	.dev_stop               = tap_dev_stop,
@@ -784,6 +818,7 @@ static const struct eth_dev_ops ops = {
 	.set_mc_addr_list       = tap_set_mc_addr_list,
 	.stats_get              = tap_stats_get,
 	.stats_reset            = tap_stats_reset,
+	.dev_supported_ptypes_get = tap_dev_supported_ptypes_get,
 };
 
 static int
-- 
2.20.1