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examples/ip_fragmentation: fix check of packet type

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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>
Tested-by: Fangfang Wei <fangfangx.wei@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Wei Dai 2017-03-14 22:47:49 +08:00 committed by Thomas Monjalon
parent fe2497f948
commit 201d52bc0d
1 changed files with 74 additions and 0 deletions
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74
examples/ip_fragmentation/main.c
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@ -654,6 +654,74 @@ 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)
{
@ -945,6 +1013,12 @@ main(int argc, char **argv)
ret, portid);
rte_eth_promiscuous_enable(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);
}
}
if (init_routing_table() < 0)