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path: root/drivers/net/thunderx/nicvf_rxtx.c
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Diffstat (limited to 'drivers/net/thunderx/nicvf_rxtx.c')
-rw-r--r--drivers/net/thunderx/nicvf_rxtx.c24
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/thunderx/nicvf_rxtx.c b/drivers/net/thunderx/nicvf_rxtx.c
index 275adb31..4b9b2932 100644
--- a/drivers/net/thunderx/nicvf_rxtx.c
+++ b/drivers/net/thunderx/nicvf_rxtx.c
@@ -190,12 +190,14 @@ nicvf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
free_desc -= TX_DESC_PER_PKT;
}
- sq->tail = tail;
- sq->xmit_bufs += i;
- rte_wmb();
+ if (likely(i)) {
+ sq->tail = tail;
+ sq->xmit_bufs += i;
+ rte_wmb();
- /* Inform HW to xmit the packets */
- nicvf_addr_write(sq->sq_door, i * TX_DESC_PER_PKT);
+ /* Inform HW to xmit the packets */
+ nicvf_addr_write(sq->sq_door, i * TX_DESC_PER_PKT);
+ }
return i;
}
@@ -246,12 +248,14 @@ nicvf_xmit_pkts_multiseg(void *tx_queue, struct rte_mbuf **tx_pkts,
}
}
- sq->tail = tail;
- sq->xmit_bufs += used_bufs;
- rte_wmb();
+ if (likely(used_desc)) {
+ sq->tail = tail;
+ sq->xmit_bufs += used_bufs;
+ rte_wmb();
- /* Inform HW to xmit the packets */
- nicvf_addr_write(sq->sq_door, used_desc);
+ /* Inform HW to xmit the packets */
+ nicvf_addr_write(sq->sq_door, used_desc);
+ }
return i;
}