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Message-Id: <20240105070925.2948871-4-leong.ching.swee@intel.com>
Date: Fri, 5 Jan 2024 15:09:24 +0800
From: Leong Ching Swee <leong.ching.swee@...el.com>
To: Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
devicetree@...r.kernel.org,
Swee Leong Ching <leong.ching.swee@...el.com>,
Teoh Ji Sheng <ji.sheng.teoh@...el.com>
Subject: [PATCH net-next v2 3/4] net: stmmac: Add support for TX/RX channel interrupt
From: Swee Leong Ching <leong.ching.swee@...el.com>
Enable TX/RX channel interrupt registration for MAC that interrupts CPU
through shared peripheral interrupt (SPI).
Per channel interrupts and interrupt-names are registered through,
Eg: 4 tx and 4 rx channels:
interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
<GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
<GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
<GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
<GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "dma_tx0",
"dma_tx1",
"dma_tx2",
"dma_tx3",
"dma_rx0",
"dma_rx1",
"dma_rx2",
"dma_rx3";
Signed-off-by: Teoh Ji Sheng <ji.sheng.teoh@...el.com>
Signed-off-by: Swee Leong Ching <leong.ching.swee@...el.com>
---
.../ethernet/stmicro/stmmac/stmmac_platform.c | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 70eadc83ca68..ae6859153e98 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -710,6 +710,10 @@ EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt);
int stmmac_get_platform_resources(struct platform_device *pdev,
struct stmmac_resources *stmmac_res)
{
+ char irq_name[9];
+ int i;
+ int irq;
+
memset(stmmac_res, 0, sizeof(*stmmac_res));
/* Get IRQ information early to have an ability to ask for deferred
@@ -743,6 +747,30 @@ int stmmac_get_platform_resources(struct platform_device *pdev,
dev_info(&pdev->dev, "IRQ eth_lpi not found\n");
}
+ /* For RX Channel */
+ for (i = 0; i < MTL_MAX_RX_QUEUES; i++) {
+ snprintf(irq_name, sizeof(irq_name), "dma_rx%i", i);
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
+ if (irq == -EPROBE_DEFER)
+ return irq;
+ else if (irq < 0)
+ break;
+
+ stmmac_res->rx_irq[i] = irq;
+ }
+
+ /* For TX Channel */
+ for (i = 0; i < MTL_MAX_TX_QUEUES; i++) {
+ snprintf(irq_name, sizeof(irq_name), "dma_tx%i", i);
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
+ if (irq == -EPROBE_DEFER)
+ return irq;
+ else if (irq < 0)
+ break;
+
+ stmmac_res->tx_irq[i] = irq;
+ }
+
stmmac_res->addr = devm_platform_ioremap_resource(pdev, 0);
return PTR_ERR_OR_ZERO(stmmac_res->addr);
--
2.34.1
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