Messages in this thread Patch in this message | | | From | Jose Abreu <> | Subject | [PATCH net-next 1/7] net: stmmac: Do not set RX IC bit if RX Coalesce is zero | Date | Wed, 13 Nov 2019 16:12:02 +0100 |
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We may only want to use the RX Watchdog so lets check if RX Coalesce settings are non-zero and only set the RX Interrupt on Completion bit if its not.
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
--- Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Jose Abreu <joabreu@synopsys.com> 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 | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 39b4efd521f9..e3677883ea30 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3440,7 +3440,8 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv, u32 queue) rx_q->rx_count_frames += priv->rx_coal_frames; if (rx_q->rx_count_frames > priv->rx_coal_frames) rx_q->rx_count_frames = 0; - use_rx_wd = priv->use_riwt && rx_q->rx_count_frames; + use_rx_wd = !priv->rx_coal_frames; + use_rx_wd |= priv->use_riwt && rx_q->rx_count_frames; dma_wmb(); stmmac_set_rx_owner(priv, p, use_rx_wd); -- 2.7.4
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