Thread (12 messages) 12 messages, 2 authors, 2021-01-29

[dpdk-dev] [PATCH v2 2/5] net/ena: Tx doorbell statistics fix

From: Michal Krawczyk <hidden>
Date: 2021-01-26 18:33:10
Subsystem: networking drivers, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Amit Bernstein <redacted>

Increment Tx doorbell statistics on tx_pkt_burst
after writing to doorbell and in case max burst size achieved

Fixes: c7519ea5eb8d ("net/ena: call additional doorbells if needed")
Cc: stable@dpdk.org

Signed-off-by: Amit Bernstein <redacted>
Reviewed-by: Michal Krawczyk <redacted>
Reviewed-by: Igor Chauskin <redacted>
---
 drivers/net/ena/ena_ethdev.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 516e244295..111e830bfa 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2519,6 +2519,7 @@ static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
 			"llq tx max burst size of queue %d achieved, writing doorbell to send burst\n",
 			tx_ring->id);
 		ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+		tx_ring->tx_stats.doorbells++;
 	}
 
 	/* prepare the packet's descriptors to dma engine */
-- 
2.25.1
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