From: Wei Dai <wei.dai@intel.com>
To: wei.dai@intle.com, konstantin.ananyev@intel.com, helin.zhang@intel.com
Cc: Wei Dai <wei.dai@intel.com>, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v2] examples/ip_fragmentation: fix check of packet type
Date: Tue, 14 Mar 2017 15:46:49 +0800 [thread overview]
Message-ID: <1489477609-27888-1-git-send-email-wei.dai@intel.com> (raw)
The packet_type in mbuf is not correctly filled by ixgbe 82599 NIC.
To use the ether_type in ethernet header to check packet type is
more reliaber.
Fixes: 3c0184cc0c60 ("examples: replace some offload flags with packet type")
Fixes: ab351fe1c95c ("mbuf: remove packet type from offload flags")
Cc: stable@dpdk.org
Reported-by: Fangfang Wei <fangfangx.wei@intel.com>
Signed-off-by: Wei Dai <wei.dai@intel.com>
---
examples/ip_fragmentation/main.c | 75 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/examples/ip_fragmentation/main.c b/examples/ip_fragmentation/main.c
index 9e9ecae..ed1edab 100644
--- a/examples/ip_fragmentation/main.c
+++ b/examples/ip_fragmentation/main.c
@@ -653,6 +653,74 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
}
}
+/* Check L3 packet type detection capablity of the NIC port */
+static int
+check_ptype(int portid)
+{
+ int i, ret;
+ int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
+ uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
+ if (ret <= 0)
+ return 0;
+
+ uint32_t ptypes[ret];
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
+ for (i = 0; i < ret; ++i) {
+ if (ptypes[i] & RTE_PTYPE_L3_IPV4)
+ ptype_l3_ipv4 = 1;
+ if (ptypes[i] & RTE_PTYPE_L3_IPV6)
+ ptype_l3_ipv6 = 1;
+ }
+
+ if (ptype_l3_ipv4 == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
+
+ if (ptype_l3_ipv6 == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
+
+ if (ptype_l3_ipv4 && ptype_l3_ipv6)
+ return 1;
+
+ return 0;
+
+}
+
+/* Parse packet type of a packet by SW */
+static inline void
+parse_ptype(struct rte_mbuf *m)
+{
+ struct ether_hdr *eth_hdr;
+ uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+ uint16_t ether_type;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ ether_type = eth_hdr->ether_type;
+ if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+ else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+
+ m->packet_type = packet_type;
+}
+
+/* callback function to detect packet type for a queue of a port */
+static uint16_t
+cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
+ struct rte_mbuf *pkts[], uint16_t nb_pkts,
+ uint16_t max_pkts __rte_unused,
+ void *user_param __rte_unused)
+{
+ uint16_t i;
+
+ for (i = 0; i < nb_pkts; ++i)
+ parse_ptype(pkts[i]);
+
+ return nb_pkts;
+}
+
static int
init_routing_table(void)
{
@@ -897,6 +965,13 @@ main(int argc, char **argv)
ret, portid);
}
+ if (check_ptype(portid) == 0) {
+ rte_eth_add_rx_callback(portid, 0,
+ cb_parse_ptype, NULL);
+ printf("Add Rx callback funciton to detect L3 packet "
+ "type by SW : port = %d\n", portid);
+ }
+
rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
print_ethaddr(" Address:", &ports_eth_addr[portid]);
printf("\n");
--
2.7.4
next reply other threads:[~2017-03-14 7:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-14 7:46 Wei Dai [this message]
2017-03-14 14:47 Wei Dai
2017-03-15 12:23 ` Ananyev, Konstantin
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