From: Jose Abreu <Jose.Abreu@synopsys.com>
To: netdev@vger.kernel.org
Cc: Joao Pinto <Joao.Pinto@synopsys.com>,
Jose Abreu <Jose.Abreu@synopsys.com>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Jose Abreu <Jose.Abreu@synopsys.com>,
"David S. Miller" <davem@davemloft.net>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
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 [thread overview]
Message-ID: <51b9d21bebde8f9694a2a9883733c7a16425cd72.1573657592.git.Jose.Abreu@synopsys.com> (raw)
In-Reply-To: <cover.1573657592.git.Jose.Abreu@synopsys.com>
In-Reply-To: <cover.1573657592.git.Jose.Abreu@synopsys.com>
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
next prev parent reply other threads:[~2019-11-13 15:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-13 15:12 [PATCH net-next 0/7] net: stmmac: CPU Performance Improvements Jose Abreu
2019-11-13 15:12 ` Jose Abreu [this message]
2019-11-13 15:12 ` [PATCH net-next 2/7] net: stmmac: Setup a default RX Coalesce value instead of the minimum Jose Abreu
2019-11-13 15:12 ` [PATCH net-next 3/7] net: stmmac: gmac4+: Enable the TBU Interrupt Jose Abreu
2019-11-13 15:12 ` [PATCH net-next 4/7] net: stmmac: gmac4+: Remove uneeded computation for RFA/RFD Jose Abreu
2019-11-13 15:12 ` [PATCH net-next 5/7] net: stmmac: xgmac: " Jose Abreu
2019-11-13 15:12 ` [PATCH net-next 6/7] net: stmmac: Tune-up default coalesce settings Jose Abreu
2019-11-13 15:12 ` [PATCH net-next 7/7] net: stmmac: TX Coalesce should be per-packet Jose Abreu
2019-11-14 10:59 ` [PATCH net-next 0/7] net: stmmac: CPU Performance Improvements Jose Abreu
2019-11-14 21:34 ` David Miller
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