diff options
| -rw-r--r-- | drivers/net/ethernet/sfc/ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 3 |
3 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c index 0b8ffdfba3d8..63546930f954 100644 --- a/drivers/net/ethernet/sfc/ethtool.c +++ b/drivers/net/ethernet/sfc/ethtool.c @@ -65,6 +65,7 @@ static u64 efx_get_atomic_stat(void *field) unsigned int, efx_get_uint_stat) static const struct efx_sw_stat_desc efx_sw_stat_desc[] = { + EFX_ETHTOOL_UINT_TXQ_STAT(merge_events), EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts), EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers), EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets), diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 481e41219869..f52b38c1ef26 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -186,6 +186,7 @@ struct efx_tx_buffer { * variable indicates that the queue is empty. This is to * avoid cache-line ping-pong between the xmit path and the * completion path. + * @merge_events: Number of TX merged completion events * @insert_count: Current insert pointer * This is the number of buffers that have been added to the * software ring. @@ -222,6 +223,7 @@ struct efx_tx_queue { /* Members used mainly on the completion path */ unsigned int read_count ____cacheline_aligned_in_smp; unsigned int old_write_count; + unsigned int merge_events; /* Members used only on the xmit path */ unsigned int insert_count ____cacheline_aligned_in_smp; diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index 4903c4f7f292..85ee647b28ad 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -437,6 +437,9 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index) efx_dequeue_buffers(tx_queue, index, &pkts_compl, &bytes_compl); netdev_tx_completed_queue(tx_queue->core_txq, pkts_compl, bytes_compl); + if (pkts_compl > 1) + ++tx_queue->merge_events; + /* See if we need to restart the netif queue. This memory * barrier ensures that we write read_count (inside * efx_dequeue_buffers()) before reading the queue status. |