From 477bd4beb93bf9ace9bda71f1437b191befa9cf4 Mon Sep 17 00:00:00 2001 From: Swee Leong Ching Date: Fri, 5 Jan 2024 15:09:23 +0800 Subject: net: stmmac: Make MSI interrupt routine generic There is no support for per DMA channel interrupt for non-MSI platform, where the MAC's per channel interrupt hooks up to interrupt controller(GIC) through shared peripheral interrupt(SPI) to handle interrupt from TX/RX transmit channel. This patch generalize the existing MSI ISR to also support non-MSI platform. Signed-off-by: Teoh Ji Sheng Signed-off-by: Swee Leong Ching Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 4 +-- .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 3 +++ drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 30 +++++++++++----------- 4 files changed, 21 insertions(+), 18 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c index 60283543ffc8..f0ec69af96c9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c @@ -952,7 +952,7 @@ static int stmmac_config_single_msi(struct pci_dev *pdev, res->irq = pci_irq_vector(pdev, 0); res->wol_irq = res->irq; - plat->flags &= ~STMMAC_FLAG_MULTI_MSI_EN; + plat->flags &= ~STMMAC_FLAG_MULTI_IRQ_EN; dev_info(&pdev->dev, "%s: Single IRQ enablement successful\n", __func__); @@ -1004,7 +1004,7 @@ static int stmmac_config_multi_msi(struct pci_dev *pdev, if (plat->msi_sfty_ue_vec < STMMAC_MSI_VEC_MAX) res->sfty_ue_irq = pci_irq_vector(pdev, plat->msi_sfty_ue_vec); - plat->flags |= STMMAC_FLAG_MULTI_MSI_EN; + plat->flags |= STMMAC_FLAG_MULTI_IRQ_EN; dev_info(&pdev->dev, "%s: multi MSI enablement successful\n", __func__); return 0; diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index ba2ce776bd4d..cf43fb3c6cc5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -427,6 +427,9 @@ static int socfpga_dwmac_probe(struct platform_device *pdev) plat_dat->bsp_priv = dwmac; plat_dat->fix_mac_speed = socfpga_dwmac_fix_mac_speed; + if (stmmac_res.rx_irq[0] > 0 && stmmac_res.tx_irq[0] > 0) + plat_dat->flags |= STMMAC_FLAG_MULTI_IRQ_EN; + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (ret) return ret; diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c index 84d3a8551b03..5f649106ffcd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -175,7 +175,7 @@ static void dwmac4_dma_init(void __iomem *ioaddr, value = readl(ioaddr + DMA_BUS_MODE); - if (dma_cfg->multi_msi_en) { + if (dma_cfg->multi_irq_en) { value &= ~DMA_BUS_MODE_INTM_MASK; value |= (DMA_BUS_MODE_INTM_MODE1 << DMA_BUS_MODE_INTM_SHIFT); } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 47de466e432c..57873b879b33 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -129,8 +129,8 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id); /* For MSI interrupts handling */ static irqreturn_t stmmac_mac_interrupt(int irq, void *dev_id); static irqreturn_t stmmac_safety_interrupt(int irq, void *dev_id); -static irqreturn_t stmmac_msi_intr_tx(int irq, void *data); -static irqreturn_t stmmac_msi_intr_rx(int irq, void *data); +static irqreturn_t stmmac_dma_tx_interrupt(int irq, void *data); +static irqreturn_t stmmac_dma_rx_interrupt(int irq, void *data); static void stmmac_reset_rx_queue(struct stmmac_priv *priv, u32 queue); static void stmmac_reset_tx_queue(struct stmmac_priv *priv, u32 queue); static void stmmac_reset_queues_param(struct stmmac_priv *priv); @@ -3602,7 +3602,7 @@ static void stmmac_free_irq(struct net_device *dev, } } -static int stmmac_request_irq_multi_msi(struct net_device *dev) +static int stmmac_request_irq_multi(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); enum request_irq_err irq_err; @@ -3697,7 +3697,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) } } - /* Request Rx MSI irq */ + /* Request Rx irq */ for (i = 0; i < priv->plat->rx_queues_to_use; i++) { if (i >= MTL_MAX_RX_QUEUES) break; @@ -3707,11 +3707,11 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) int_name = priv->int_name_rx_irq[i]; sprintf(int_name, "%s:%s-%d", dev->name, "rx", i); ret = request_irq(priv->rx_irq[i], - stmmac_msi_intr_rx, + stmmac_dma_rx_interrupt, 0, int_name, &priv->dma_conf.rx_queue[i]); if (unlikely(ret < 0)) { netdev_err(priv->dev, - "%s: alloc rx-%d MSI %d (error: %d)\n", + "%s: alloc rx-%d dma rx_irq %d (error: %d)\n", __func__, i, priv->rx_irq[i], ret); irq_err = REQ_IRQ_ERR_RX; irq_idx = i; @@ -3722,7 +3722,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) irq_set_affinity_hint(priv->rx_irq[i], &cpu_mask); } - /* Request Tx MSI irq */ + /* Request Tx irq */ for (i = 0; i < priv->plat->tx_queues_to_use; i++) { if (i >= MTL_MAX_TX_QUEUES) break; @@ -3732,11 +3732,11 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) int_name = priv->int_name_tx_irq[i]; sprintf(int_name, "%s:%s-%d", dev->name, "tx", i); ret = request_irq(priv->tx_irq[i], - stmmac_msi_intr_tx, + stmmac_dma_tx_interrupt, 0, int_name, &priv->dma_conf.tx_queue[i]); if (unlikely(ret < 0)) { netdev_err(priv->dev, - "%s: alloc tx-%d MSI %d (error: %d)\n", + "%s: alloc tx-%d dma tx_irq %d (error: %d)\n", __func__, i, priv->tx_irq[i], ret); irq_err = REQ_IRQ_ERR_TX; irq_idx = i; @@ -3811,8 +3811,8 @@ static int stmmac_request_irq(struct net_device *dev) int ret; /* Request the IRQ lines */ - if (priv->plat->flags & STMMAC_FLAG_MULTI_MSI_EN) - ret = stmmac_request_irq_multi_msi(dev); + if (priv->plat->flags & STMMAC_FLAG_MULTI_IRQ_EN) + ret = stmmac_request_irq_multi(dev); else ret = stmmac_request_irq_single(dev); @@ -6075,7 +6075,7 @@ static irqreturn_t stmmac_safety_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static irqreturn_t stmmac_msi_intr_tx(int irq, void *data) +static irqreturn_t stmmac_dma_tx_interrupt(int irq, void *data) { struct stmmac_tx_queue *tx_q = (struct stmmac_tx_queue *)data; struct stmmac_dma_conf *dma_conf; @@ -6107,7 +6107,7 @@ static irqreturn_t stmmac_msi_intr_tx(int irq, void *data) return IRQ_HANDLED; } -static irqreturn_t stmmac_msi_intr_rx(int irq, void *data) +static irqreturn_t stmmac_dma_rx_interrupt(int irq, void *data) { struct stmmac_rx_queue *rx_q = (struct stmmac_rx_queue *)data; struct stmmac_dma_conf *dma_conf; @@ -7456,8 +7456,8 @@ int stmmac_dvr_probe(struct device *device, priv->plat = plat_dat; priv->ioaddr = res->addr; priv->dev->base_addr = (unsigned long)res->addr; - priv->plat->dma_cfg->multi_msi_en = - (priv->plat->flags & STMMAC_FLAG_MULTI_MSI_EN); + priv->plat->dma_cfg->multi_irq_en = + (priv->plat->flags & STMMAC_FLAG_MULTI_IRQ_EN); priv->dev->irq = res->irq; priv->wol_irq = res->wol_irq; -- cgit v1.2.3