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authorJakub Kicinski <jakub.kicinski@netronome.com>2017-03-21 17:59:19 -0700
committerDavid S. Miller <davem@davemloft.net>2017-03-22 12:59:09 -0700
commit28b0cfee7b1b62ea214ebc50be5d5a92cbc30d42 (patch)
tree2f2fd389db03ac9164e9a88e6626fa26bf7b521a
parent83d08a1d746522c3286c2f52608bea0f79c0e9df (diff)
nfp: flush xmit_more on error paths
In case of ring full or DMA mapping error remember to flush xmit_more delayed kicks. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_common.c2
1 files changed, 2 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 255294b8bc5f..d35eeba86bac 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -759,6 +759,7 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
nn_dp_warn(dp, "TX ring %d busy. wrp=%u rdp=%u\n",
qidx, tx_ring->wr_p, tx_ring->rd_p);
netif_tx_stop_queue(nd_q);
+ nfp_net_tx_xmit_more_flush(tx_ring);
u64_stats_update_begin(&r_vec->tx_sync);
r_vec->tx_busy++;
u64_stats_update_end(&r_vec->tx_sync);
@@ -867,6 +868,7 @@ err_unmap:
tx_ring->txbufs[wr_idx].fidx = -2;
err_free:
nn_dp_warn(dp, "Failed to map DMA TX buffer\n");
+ nfp_net_tx_xmit_more_flush(tx_ring);
u64_stats_update_begin(&r_vec->tx_sync);
r_vec->tx_errors++;
u64_stats_update_end(&r_vec->tx_sync);