From patchwork Wed Aug 25 07:01:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12456615 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A549C43216 for ; Wed, 25 Aug 2021 07:02:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35ED961407 for ; Wed, 25 Aug 2021 07:02:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239118AbhHYHDO (ORCPT ); Wed, 25 Aug 2021 03:03:14 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:5816 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S238536AbhHYHCy (ORCPT ); Wed, 25 Aug 2021 03:02:54 -0400 X-IronPort-AV: E=Sophos;i="5.84,349,1620658800"; d="scan'208";a="91716440" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 25 Aug 2021 16:02:08 +0900 Received: from localhost.localdomain (unknown [10.226.92.232]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id CF1B34202725; Wed, 25 Aug 2021 16:02:04 +0900 (JST) From: Biju Das To: "David S. Miller" , Jakub Kicinski Cc: Biju Das , Sergey Shtylyov , Lad Prabhakar , Andrew Lunn , Sergei Shtylyov , Geert Uytterhoeven , Adam Ford , Yoshihiro Shimoda , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Chris Paterson , Biju Das Subject: [PATCH net-next 02/13] ravb: Add multi_irq to struct ravb_hw_info Date: Wed, 25 Aug 2021 08:01:43 +0100 Message-Id: <20210825070154.14336-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210825070154.14336-1-biju.das.jz@bp.renesas.com> References: <20210825070154.14336-1-biju.das.jz@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org R-Car Gen3 supports separate interrupts for E-MAC and DMA queues, whereas R-Car Gen2 and RZ/G2L have a single interrupt instead. Add a multi_irq hw feature bit to struct ravb_hw_info to enable this only for R-Car Gen3. Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar Reviewed-by: Sergey Shtylyov --- drivers/net/ethernet/renesas/ravb.h | 1 + drivers/net/ethernet/renesas/ravb_main.c | 22 ++++++++++++++-------- drivers/net/ethernet/renesas/ravb_ptp.c | 8 +++++--- 3 files changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 84700a82a41c..da486e06b322 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -997,6 +997,7 @@ struct ravb_hw_info { /* hardware features */ unsigned internal_delay:1; /* AVB-DMAC has internal delays */ unsigned tx_counters:1; /* E-MAC has TX counters */ + unsigned multi_irqs:1; /* AVB-DMAC and E-MAC has multiple irqs */ }; struct ravb_private { diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 073e690ab830..28b8dcae57a8 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -427,6 +427,7 @@ static void ravb_emac_init(struct net_device *ndev) static int ravb_dmac_init(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; int error; /* Set CONFIG mode */ @@ -458,7 +459,7 @@ static int ravb_dmac_init(struct net_device *ndev) ravb_write(ndev, TCCR_TFEN, TCCR); /* Interrupt init: */ - if (priv->chip_id == RCAR_GEN3) { + if (info->multi_irqs) { /* Clear DIL.DPLx */ ravb_write(ndev, 0, DIL); /* Set queue specific interrupt */ @@ -758,6 +759,7 @@ static void ravb_error_interrupt(struct net_device *ndev) static bool ravb_queue_interrupt(struct net_device *ndev, int q) { struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; u32 ris0 = ravb_read(ndev, RIS0); u32 ric0 = ravb_read(ndev, RIC0); u32 tis = ravb_read(ndev, TIS); @@ -766,7 +768,7 @@ static bool ravb_queue_interrupt(struct net_device *ndev, int q) if (((ris0 & ric0) & BIT(q)) || ((tis & tic) & BIT(q))) { if (napi_schedule_prep(&priv->napi[q])) { /* Mask RX and TX interrupts */ - if (priv->chip_id == RCAR_GEN2) { + if (!info->multi_irqs) { ravb_write(ndev, ric0 & ~BIT(q), RIC0); ravb_write(ndev, tic & ~BIT(q), TIC); } else { @@ -909,6 +911,7 @@ static int ravb_poll(struct napi_struct *napi, int budget) { struct net_device *ndev = napi->dev; struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; unsigned long flags; int q = napi - priv->napi; int mask = BIT(q); @@ -932,7 +935,7 @@ static int ravb_poll(struct napi_struct *napi, int budget) /* Re-enable RX/TX interrupts */ spin_lock_irqsave(&priv->lock, flags); - if (priv->chip_id == RCAR_GEN2) { + if (!info->multi_irqs) { ravb_modify(ndev, RIC0, mask, mask); ravb_modify(ndev, TIC, mask, mask); } else { @@ -1338,6 +1341,7 @@ static inline int ravb_hook_irq(unsigned int irq, irq_handler_t handler, static int ravb_open(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; struct platform_device *pdev = priv->pdev; struct device *dev = &pdev->dev; int error; @@ -1345,7 +1349,7 @@ static int ravb_open(struct net_device *ndev) napi_enable(&priv->napi[RAVB_BE]); napi_enable(&priv->napi[RAVB_NC]); - if (priv->chip_id == RCAR_GEN2) { + if (!info->multi_irqs) { error = request_irq(ndev->irq, ravb_interrupt, IRQF_SHARED, ndev->name, ndev); if (error) { @@ -1403,7 +1407,7 @@ static int ravb_open(struct net_device *ndev) if (priv->chip_id == RCAR_GEN2) ravb_ptp_stop(ndev); out_free_irq_nc_tx: - if (priv->chip_id == RCAR_GEN2) + if (!info->multi_irqs) goto out_free_irq; free_irq(priv->tx_irqs[RAVB_NC], ndev); out_free_irq_nc_rx: @@ -1680,6 +1684,7 @@ static int ravb_close(struct net_device *ndev) { struct device_node *np = ndev->dev.parent->of_node; struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; struct ravb_tstamp_skb *ts_skb, *ts_skb2; netif_tx_stop_all_queues(ndev); @@ -1713,7 +1718,7 @@ static int ravb_close(struct net_device *ndev) of_phy_deregister_fixed_link(np); } - if (priv->chip_id != RCAR_GEN2) { + if (info->multi_irqs) { free_irq(priv->tx_irqs[RAVB_NC], ndev); free_irq(priv->rx_irqs[RAVB_NC], ndev); free_irq(priv->tx_irqs[RAVB_BE], ndev); @@ -1939,6 +1944,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { .max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1, .internal_delay = 1, .tx_counters = 1, + .multi_irqs = 1, }; static const struct ravb_hw_info ravb_gen2_hw_info = { @@ -2077,7 +2083,7 @@ static int ravb_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); pm_runtime_get_sync(&pdev->dev); - if (info->chip_id == RCAR_GEN3) + if (info->multi_irqs) irq = platform_get_irq_byname(pdev, "ch22"); else irq = platform_get_irq(pdev, 0); @@ -2117,7 +2123,7 @@ static int ravb_probe(struct platform_device *pdev) priv->avb_link_active_low = of_property_read_bool(np, "renesas,ether-link-active-low"); - if (info->chip_id == RCAR_GEN3) { + if (info->multi_irqs) { irq = platform_get_irq_byname(pdev, "ch24"); if (irq < 0) { error = irq; diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c index 6984bd5b7da9..c099656dd75b 100644 --- a/drivers/net/ethernet/renesas/ravb_ptp.c +++ b/drivers/net/ethernet/renesas/ravb_ptp.c @@ -179,6 +179,7 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp, { struct ravb_private *priv = container_of(ptp, struct ravb_private, ptp.info); + const struct ravb_hw_info *info = priv->info; struct net_device *ndev = priv->ndev; unsigned long flags; @@ -197,7 +198,7 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp, priv->ptp.extts[req->index] = on; spin_lock_irqsave(&priv->lock, flags); - if (priv->chip_id == RCAR_GEN2) + if (!info->multi_irqs) ravb_modify(ndev, GIC, GIC_PTCE, on ? GIC_PTCE : 0); else if (on) ravb_write(ndev, GIE_PTCS, GIE); @@ -213,6 +214,7 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp, { struct ravb_private *priv = container_of(ptp, struct ravb_private, ptp.info); + const struct ravb_hw_info *info = priv->info; struct net_device *ndev = priv->ndev; struct ravb_ptp_perout *perout; unsigned long flags; @@ -252,7 +254,7 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp, error = ravb_ptp_update_compare(priv, (u32)start_ns); if (!error) { /* Unmask interrupt */ - if (priv->chip_id == RCAR_GEN2) + if (!info->multi_irqs) ravb_modify(ndev, GIC, GIC_PTME, GIC_PTME); else ravb_write(ndev, GIE_PTMS0, GIE); @@ -264,7 +266,7 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp, perout->period = 0; /* Mask interrupt */ - if (priv->chip_id == RCAR_GEN2) + if (!info->multi_irqs) ravb_modify(ndev, GIC, GIC_PTME, 0); else ravb_write(ndev, GID_PTMD0, GID);