diff options
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 4fbda0eb4776..c763a5b3bd6b 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -927,6 +927,9 @@ static void nfp_net_tx_complete(struct nfp_net_tx_ring *tx_ring) int fidx; int idx; + if (tx_ring->wr_p == tx_ring->rd_p) + return; + /* Work out how many descriptors have been transmitted */ qcp_rd_p = nfp_qcp_rd_ptr_read(tx_ring->qcp_q); @@ -1001,6 +1004,9 @@ static void nfp_net_xdp_complete(struct nfp_net_tx_ring *tx_ring) int idx, todo; u32 qcp_rd_p; + if (tx_ring->wr_p == tx_ring->rd_p) + return; + /* Work out how many descriptors have been transmitted */ qcp_rd_p = nfp_qcp_rd_ptr_read(tx_ring->qcp_q); |