On 08/26/2014 09:52 AM, Venkatesh Vivekanandan wrote:
Maxim,
Need not apply this patch to upstream. It was sent, so that someone
else can validate the multi-queue support in ODP-DPDK.
Thanks,
Venky
Venky I'm fine with that patch. Do we need to pass 12 to command line
argument? 12 is number of cpus and number of dpdk threads, what will be
if number of cpus will change? Might be set up this to 128 to blast 128
different ips?
Maxim.
On 25 August 2014 20:14, <[email protected]
<mailto:[email protected]>> wrote:
From: Venkatesh Vivekanandan <[email protected]
<mailto:[email protected]>>
setup:
- connect two ixgbe/igb cards to x86 box which has atleast 4 cpus.
- Lets say we have eth0 & eth1 in one card and eth2 & eth3 in
other card
- eth0 and eth2 are connected back to back using cross cable(1g) or
fibre(10g)
- Similarly connect eth1 and eth3
test:
- say eth2 and eth3 are given to dpdk on which odp-dpdk l2fwd app
is running.
cmd is ./example/l2fwd/odp_l2fwd -i 0,1 -m 0
- ensure eth0 and eth1 are brought up and put in promiscuous mode.
- start odp_generator in rx mode in eth1. cmd is
./example/generator/odp_generator -I eth1 -m r
- start odp_generator in tx mode in eth0. cmd is
./example/generator/odp_generator -I eth0 --srcmac a0:36:9f:13:89:08
--dstmac a0:36:9f:13:89:c8 -m u --dstip 201.0.0.0
- replace srcmac(eth0) and dstmac(eth2) with actual mac addresses
on the port.
- choose suitable dstip, so that packets are distributed to different
cpus on the machine.
Signed-off-by: Venkatesh Vivekanandan
<[email protected]
<mailto:[email protected]>>
---
example/generator/odp_generator.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/example/generator/odp_generator.c
b/example/generator/odp_generator.c
index b10372e..d202a8a 100644
--- a/example/generator/odp_generator.c
+++ b/example/generator/odp_generator.c
@@ -171,7 +171,7 @@ static int scan_mac(char *in, odp_ethaddr_t *des)
static void pack_udp_pkt(odp_buffer_t obuf)
{
char *buf;
- int max;
+ int max, i = 0;
odp_packet_t pkt;
odp_ethhdr_t *eth;
odp_ipv4hdr_t *ip;
@@ -195,6 +195,8 @@ static void pack_udp_pkt(odp_buffer_t obuf)
/* ip */
odp_packet_set_l3_offset(pkt, ODP_ETHHDR_LEN);
ip = (odp_ipv4hdr_t *)(buf + ODP_ETHHDR_LEN);
+ i = ((i+1) % 12);
+ args->appl.dstip = args->appl.dstip + i;
ip->dst_addr = odp_cpu_to_be_32(args->appl.dstip);
ip->src_addr = odp_cpu_to_be_32(args->appl.srcip);
ip->ver_ihl = ODP_IPV4 << 4 | ODP_IPV4HDR_IHL_MIN;
--
1.8.1.2
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