From patchwork Fri Dec 22 05:44:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Swee, Leong Ching" X-Patchwork-Id: 757952 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA729BE53; Fri, 22 Dec 2023 05:46:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ZQaL31hG" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1703223967; x=1734759967; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=pNSWH3cGb8jQjk1sGpH5wFxIWXQ+eiKLajT6kOJrQF8=; b=ZQaL31hGfkSlC6enpAurWuXrdg8H/EY4VtLfoUB07lgUOU6xq82fXbrU mQpB15GUvzoWOM3XnNHBd9zMmRDFA7iZNxBEL3EJF0/gIdXrf+Ykmb6Aw 2JaKuGLvjpalXguUpILsuyuwJljWzEPDUSaKn/WEK/xW8HmTmNZYvGa3N n2epkNj1E8RTAeFoP4b+g+nFNh4gdE6JsSaDLFz2NKIAwO18pel+aVlsn C4EGJFaasrbfIUjSbqufwXwMDcwRypwRjLLU/6QrRWbR98nbRsUQxgNAD iG3tULXjB+pAao2DKOA8ZKBGt2QoMYAjG1bUfoD+CBLRnnd8bew6BNRfT A==; X-IronPort-AV: E=McAfee;i="6600,9927,10931"; a="9470553" X-IronPort-AV: E=Sophos;i="6.04,294,1695711600"; d="scan'208";a="9470553" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Dec 2023 21:46:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10931"; a="900324214" X-IronPort-AV: E=Sophos;i="6.04,294,1695711600"; d="scan'208";a="900324214" Received: from pg-esw-build.png.intel.com ([10.226.214.57]) by orsmga004.jf.intel.com with ESMTP; 21 Dec 2023 21:46:01 -0800 From: Leong Ching Swee To: Maxime Coquelin , Alexandre Torgue , Jose Abreu , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Giuseppe Cavallaro Cc: linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, Swee Leong Ching , Teoh Ji Sheng Subject: [PATCH net-next v1 2/4] net: stmmac: Make MSI interrupt routine generic Date: Fri, 22 Dec 2023 13:44:49 +0800 Message-Id: <20231222054451.2683242-3-leong.ching.swee@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231222054451.2683242-1-leong.ching.swee@intel.com> References: <20231222054451.2683242-1-leong.ching.swee@intel.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Swee Leong Ching 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 --- .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 4 +-- .../net/ethernet/stmicro/stmmac/dwmac4_dma.c | 2 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 29 ++++++++++--------- include/linux/stmmac.h | 4 +-- 4 files changed, 21 insertions(+), 18 deletions(-) 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/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..30cc9edb4198 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_tx_queue_interrupt(int irq, void *data); +static irqreturn_t stmmac_rx_queue_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; @@ -3701,13 +3701,13 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) for (i = 0; i < priv->plat->rx_queues_to_use; i++) { if (i >= MTL_MAX_RX_QUEUES) break; - if (priv->rx_irq[i] == 0) + if (priv->rx_irq[i] <= 0) continue; 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_rx_queue_interrupt, 0, int_name, &priv->dma_conf.rx_queue[i]); if (unlikely(ret < 0)) { netdev_err(priv->dev, @@ -3726,13 +3726,13 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) for (i = 0; i < priv->plat->tx_queues_to_use; i++) { if (i >= MTL_MAX_TX_QUEUES) break; - if (priv->tx_irq[i] == 0) + if (priv->tx_irq[i] <= 0) continue; 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_tx_queue_interrupt, 0, int_name, &priv->dma_conf.tx_queue[i]); if (unlikely(ret < 0)) { netdev_err(priv->dev, @@ -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_tx_queue_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_rx_queue_interrupt(int irq, void *data) { struct stmmac_rx_queue *rx_q = (struct stmmac_rx_queue *)data; struct stmmac_dma_conf *dma_conf; @@ -7456,8 +7456,11 @@ 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); + + if (res->rx_irq[0] > 0 && res->tx_irq[0] > 0) { + priv->plat->flags |= STMMAC_FLAG_MULTI_IRQ_EN; + priv->plat->dma_cfg->multi_irq_en = true; + } priv->dev->irq = res->irq; priv->wol_irq = res->wol_irq; diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index dee5ad6e48c5..b950e6f9761d 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -98,7 +98,7 @@ struct stmmac_dma_cfg { int mixed_burst; bool aal; bool eame; - bool multi_msi_en; + bool multi_irq_en; bool dche; }; @@ -215,7 +215,7 @@ struct dwmac4_addrs { #define STMMAC_FLAG_TSO_EN BIT(4) #define STMMAC_FLAG_SERDES_UP_AFTER_PHY_LINKUP BIT(5) #define STMMAC_FLAG_VLAN_FAIL_Q_EN BIT(6) -#define STMMAC_FLAG_MULTI_MSI_EN BIT(7) +#define STMMAC_FLAG_MULTI_IRQ_EN BIT(7) #define STMMAC_FLAG_EXT_SNAPSHOT_EN BIT(8) #define STMMAC_FLAG_INT_SNAPSHOT_EN BIT(9) #define STMMAC_FLAG_RX_CLK_RUNS_IN_LPI BIT(10)