d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

mlx5: avoid lkey retrieval for inlined packets

Browse Source 
Improves performance as the lkey is not needed by hardware in this case.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Nelio Laranjeiro 2016-03-03 15:27:15 +01:00 committed by Thomas Monjalon
parent 081f7eae24
commit d970e99260
1 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/mlx5/mlx5_rxtx.c
View File

@ -512,16 +512,6 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
/* Retrieve buffer information. */
addr = rte_pktmbuf_mtod(buf, uintptr_t);
length = DATA_LEN(buf);
/* Retrieve Memory Region key for this memory pool. */
lkey = txq_mp2mr(txq, txq_mb2mp(buf));
if (unlikely(lkey == (uint32_t)-1)) {
/* MR does not exist. */
DEBUG("%p: unable to get MP <-> MR"
" association", (void *)txq);
/* Clean up TX element. */
elt->buf = NULL;
goto stop;
}
/* Update element. */
elt->buf = buf;
if (txq->priv->vf)
@ -545,12 +535,25 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
send_flags);
else
#endif
{
/* Retrieve Memory Region key for this
* memory pool. */
lkey = txq_mp2mr(txq, txq_mb2mp(buf));
if (unlikely(lkey == (uint32_t)-1)) {
/* MR does not exist. */
DEBUG("%p: unable to get MP <-> MR"
" association", (void *)txq);
/* Clean up TX element. */
elt->buf = NULL;
goto stop;
}
err = txq->send_pending
(txq->qp,
addr,
length,
lkey,
send_flags);
}
if (unlikely(err))
goto stop;
#ifdef MLX5_PMD_SOFT_COUNTERS