diff options
| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2018-08-29 18:59:44 +0100 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2018-08-29 19:00:12 +0100 |
| commit | 8e6d9d118f6105a3627b64a7949e1fb0b145879e (patch) | |
| tree | 6494692bc19c7dd9cae2b16cf6e0ed7e90aa1da8 /drivers/net/thunderx/nicvf_rxtx.c | |
| parent | 43192222b329b3c984687235b0081c7fbfe484ba (diff) | |
New upstream version 16.11.8upstream/16.11.8
Change-Id: I3d0a7da377a86fe41f3516c5a3c458746abc33fb
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/thunderx/nicvf_rxtx.c')
| -rw-r--r-- | drivers/net/thunderx/nicvf_rxtx.c | 24 |
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; } |