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 9/9] net: stmmac: xgmac: Disable MMC interrupts by default
Date: Tue, 29 Oct 2019 15:14:53 +0100 [thread overview]
Message-ID: <4c77b55e43cf7a3243086a465b50568eb352d534.1572355609.git.Jose.Abreu@synopsys.com> (raw)
In-Reply-To: <cover.1572355609.git.Jose.Abreu@synopsys.com>
In-Reply-To: <cover.1572355609.git.Jose.Abreu@synopsys.com>
MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.
Fixes: b6cdf09f51c2 ("net: stmmac: xgmac: Implement MMC counters")
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/mmc_core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index a223584f5f9a..252cf48c5816 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -176,6 +176,7 @@
#define MMC_XGMAC_RX_PKT_SMD_ERR 0x22c
#define MMC_XGMAC_RX_PKT_ASSEMBLY_OK 0x230
#define MMC_XGMAC_RX_FPE_FRAG 0x234
+#define MMC_XGMAC_RX_IPC_INTR_MASK 0x25c
static void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
{
@@ -333,8 +334,9 @@ static void dwxgmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
static void dwxgmac_mmc_intr_all_mask(void __iomem *mmcaddr)
{
- writel(MMC_DEFAULT_MASK, mmcaddr + MMC_RX_INTR_MASK);
- writel(MMC_DEFAULT_MASK, mmcaddr + MMC_TX_INTR_MASK);
+ writel(0x0, mmcaddr + MMC_RX_INTR_MASK);
+ writel(0x0, mmcaddr + MMC_TX_INTR_MASK);
+ writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_IPC_INTR_MASK);
}
static void dwxgmac_read_mmc_reg(void __iomem *addr, u32 reg, u32 *dest)
--
2.7.4
prev parent reply other threads:[~2019-10-29 14:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 14:14 [PATCH net 0/9] net: stmmac: Fixes for -net Jose Abreu
2019-10-29 14:14 ` [PATCH net 1/9] net: stmmac: Fix sparse warning Jose Abreu
2019-10-29 14:14 ` [PATCH net 2/9] net: stmmac: gmac4: bitrev32 returns u32 Jose Abreu
2019-10-29 14:14 ` [PATCH net 3/9] net: stmmac: xgmac: " Jose Abreu
2019-10-29 14:14 ` [PATCH net 4/9] net: stmmac: selftests: Must remove UC/MC addresses to prevent false positives Jose Abreu
2019-10-30 21:52 ` David Miller
2019-10-29 14:14 ` [PATCH net 5/9] net: stmmac: xgmac: Only get SPH header len if available Jose Abreu
2019-10-29 14:28 ` Jose Abreu
2019-10-29 14:14 ` [PATCH net 6/9] net: stmmac: xgmac: Fix TSA selection Jose Abreu
2019-10-29 14:14 ` [PATCH net 7/9] net: stmmac: xgmac: Fix AV Feature detection Jose Abreu
2019-10-29 14:14 ` [PATCH net 8/9] net: stmmac: xgmac: Disable Flow Control when 1 or more queues are in AV Jose Abreu
2019-10-29 14:14 ` Jose Abreu [this message]
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