nfp: clear ring delayed kick counters

We need to clear delayed kick counters when we free rings otherwise after ndo_close()/ndo_open() we could kick HW by more entries than actually written to rings. Signed-off-by: Jakub Kicinski <[email protected]> Reviewed-by: Rolf Neugebauer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
akeromi · Dec 17, 2015 · 301c141 · 301c141
1 parent 1bd4978
commit 301c141
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -1363,6 +1363,7 @@ static void nfp_net_tx_ring_free(struct nfp_net_tx_ring *tx_ring)
 	tx_ring->wr_p = 0;
 	tx_ring->rd_p = 0;
 	tx_ring->qcp_rd_p = 0;
+	tx_ring->wr_ptr_add = 0;
 
 	tx_ring->txbufs = NULL;
 	tx_ring->txds = NULL;
@@ -1437,6 +1438,7 @@ static void nfp_net_rx_ring_free(struct nfp_net_rx_ring *rx_ring)
 	rx_ring->cnt = 0;
 	rx_ring->wr_p = 0;
 	rx_ring->rd_p = 0;
+	rx_ring->wr_ptr_add = 0;
 
 	rx_ring->rxbufs = NULL;
 	rx_ring->rxds = NULL;