path: root/examples/l3fwd
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authorGuduri Prathyusha <>2017-10-30 13:01:26 +0530
committerFerruh Yigit <>2017-11-07 08:50:57 +0000
commit3a4475e51d13ec3328b291061c38b7c5643a86ee (patch)
tree27fad38ce4b933d9e46eff20013f74929a7c621f /examples/l3fwd
parent9f8f40f7953599efbd7193ad34b220637847b5a4 (diff)
examples/l3fwd: fix NEON instructions
To group consecutive packets with same destination port in bursts of 4 neon intrinsic data types dp1 and dp2 are calculated such that if dst_port[]={a,b,c,d,e,f,g,h,i...} dp1 should contain: <a,b,c,d> and dp2 should contain: <b,c,d,e> in the first iteration. dp1 should be <e,f,g,h> and dp2 should be <f,g,h,i> in the next iteration. Whereas the existing code incorrectly calculates dp1 as <d,e,f,g> from second iteration. This patch fixes the incorrect ARM NEON instructions on dp1. Fixes: 569b290cdb36 ("examples/l3fwd: add NEON implementation") Cc: Signed-off-by: Guduri Prathyusha <> Acked-by: Jianbo Liu <> Acked-by: Jerin Jacob <>
Diffstat (limited to 'examples/l3fwd')
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/l3fwd/l3fwd_neon.h b/examples/l3fwd/l3fwd_neon.h
index 42d50d3..4bc1613 100644
--- a/examples/l3fwd/l3fwd_neon.h
+++ b/examples/l3fwd/l3fwd_neon.h
@@ -192,7 +192,7 @@ send_packets_multi(struct lcore_conf *qconf, struct rte_mbuf **pkts_burst,
* dp1:
* <d[j], d[j+1], d[j+2], d[j+3], ... >
- dp1 = vextq_u16(dp1, dp1, FWDSTEP - 1);
+ dp1 = vextq_u16(dp2, dp1, FWDSTEP - 1);