[PATCH net-next 7/7] net: stmmac: TX Coalesce should be per-packet
From: Jose Abreu <Jose.Abreu@synopsys.com>
Date: 2019-11-13 15:13:06
Also in:
lkml, netdev
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
TX Coalesce settings are per packet and not per fragment because otherwise the coalesce would be different between TSO and non-TSO packets. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> --- Cc: Giuseppe Cavallaro <redacted> Cc: Alexandre Torgue <redacted> Cc: Jose Abreu <redacted> Cc: "David S. Miller" <davem@davemloft.net> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6136ada20c8e..140abfcb54c6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c@@ -3033,7 +3033,7 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) tx_q->tx_skbuff[tx_q->cur_tx] = skb; /* Manage tx mitigation */ - tx_q->tx_count_frames += nfrags + 1; + tx_q->tx_count_frames++; if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) && !((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && priv->hwts_tx_en)) {
@@ -3241,7 +3241,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) * This approach takes care about the fragments: desc is the first * element in case of no SG. */ - tx_q->tx_count_frames += nfrags + 1; + tx_q->tx_count_frames++; if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) && !((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && priv->hwts_tx_en)) {
--
2.7.4
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