From patchwork Thu Dec 14 11:45:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492851 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="aBCyfvzf" Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9B1711A for ; Thu, 14 Dec 2023 03:46:21 -0800 (PST) Received: by mail-ed1-x536.google.com with SMTP id 4fb4d7f45d1cf-548ce39b101so10887184a12.2 for ; Thu, 14 Dec 2023 03:46:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554380; x=1703159180; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sOZAMEvogW3XDicAaSrKeFR75wLTaTJmQUaxz//D884=; b=aBCyfvzffeuy42b2a47jBeJGrg53dY+MTmMzoc7yMX7VflA5yHr0WL7S68E4JNifGL KX6bZomu8uTJJaZZIS6nlHo9+XvgF9AaHiOmieyFEiuxYPQ86d9SqUkFEUB6edAoQo73 VESw2BtfPzNGCvPWudZMpFasmOmr3kME8U4VaXnzdjAThNxHcnku8ZAjVWxNM3PqcPIe 31fqqntHiX+5FVMekoykFVKbQehCe8JFIrbyAd4NBgCGclXP0C8EMMLy8ezhrpUSVnCG m/Dttb3Pt7yC9nt3olSIJikvLP+8oYIun8TH1ykpxSVkVul3drPvV5tnMheC5dW9W9x0 /SNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554380; x=1703159180; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sOZAMEvogW3XDicAaSrKeFR75wLTaTJmQUaxz//D884=; b=i9hDRNd6LEiB8Y8YbuiSFwJScJKFK8e/UXccMZtY/durhfV/lmKYTxLK6aRLBuBESE vljk1b3jydKGUx5X/s+zLQybii2nscbT0H63PyreK0CGD9CMVRZQ082h9te6363aLEC0 jZSv17SeKcH3B9QFK5bGlSKFKTP2ymDsOcrBAYSr6lPauj2YcGirVeFihNJq5YU60E+p rpMVnYpwFWWKAjQa5kE1/ZAsBG7VfiAZj7lAvXoF38p7GLAzyqAOB6brVbhwOSXXh+id izMlHGU3RuJFiXmytQvtt87GfGXx5m4+7u+Uy4QDo8JRRmcm9GBEavKt+cDyP3LYfa95 3sPQ== X-Gm-Message-State: AOJu0YyYM1OfcszS7NpWzf4J4YgmF7tsckH85TDqWQUlDC9UQOOq0Xc/ MveAykZQYDng2+BaEu1wl9jfaQ== X-Google-Smtp-Source: AGHT+IEAFaM5Cm0jFSOiB0BP6s0buW/H66IBrBKllrAZ3Y8UZeWvQVog2DOBsNItlsCh8+yUrOEP2g== X-Received: by 2002:a17:906:14e:b0:a19:a19b:4231 with SMTP id 14-20020a170906014e00b00a19a19b4231mr2526628ejh.156.1702554380148; Thu, 14 Dec 2023 03:46:20 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:19 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 01/21] net: ravb: Let IP-specific receive function to interrogate descriptors Date: Thu, 14 Dec 2023 13:45:40 +0200 Message-Id: <20231214114600.2451162-2-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea ravb_poll() initial code used to interrogate the first descriptor of the RX queue in case gPTP is false to determine if ravb_rx() should be called. This is done for non-gPTP IPs. For gPTP IPs the driver PTP-specific information was used to determine if receive function should be called. As every IP has its own receive function that interrogates the RX descriptors list in the same way the ravb_poll() was doing there is no need to double check this in ravb_poll(). Removing the code from ravb_poll() leads to a cleaner code. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - addressed review comments and keep stale code out of this patch drivers/net/ethernet/renesas/ravb_main.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 1c253403a297..8e67a18b2924 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1282,25 +1282,16 @@ 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; - bool gptp = info->gptp || info->ccc_gac; - struct ravb_rx_desc *desc; unsigned long flags; int q = napi - priv->napi; int mask = BIT(q); int quota = budget; - unsigned int entry; - if (!gptp) { - entry = priv->cur_rx[q] % priv->num_rx_ring[q]; - desc = &priv->gbeth_rx_ring[entry]; - } /* Processing RX Descriptor Ring */ /* Clear RX interrupt */ ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0); - if (gptp || desc->die_dt != DT_FEMPTY) { - if (ravb_rx(ndev, "a, q)) - goto out; - } + if (ravb_rx(ndev, "a, q)) + goto out; /* Processing TX Descriptor Ring */ spin_lock_irqsave(&priv->lock, flags); From patchwork Thu Dec 14 11:45:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492852 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="I69wKj6c" Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2B16A124 for ; Thu, 14 Dec 2023 03:46:23 -0800 (PST) Received: by mail-ed1-x52b.google.com with SMTP id 4fb4d7f45d1cf-5527ee1b5c3so562157a12.1 for ; Thu, 14 Dec 2023 03:46:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554381; x=1703159181; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xzZ0BgGaxayTSFzsb/BEZRjubDF9VvMmh4DxIfBVmak=; b=I69wKj6ciyjUxJ7QD/w621gbHVWbppXUhhnZ+Pw2vfjD8ysGHonveitzmjV0HB8mh2 IvfhpZ+S7Pm6BoW8V1eVcmePUjQI9SofLtPnOHA4dCR+fHx5rKqhNE7DQ36cWzmlEaYq 8iWDPRf2R0QDU4T3+u47GbIGofv5MGz4AOuTjxQkHUK9b+Hod/kH98vj2H3YtMetKvV8 a4bcab/zx04lAVQfa/bvp8ConLHmtSAOH6Dxq+9xnp+mKBIwaj1IJGrUBOQu2llmExbH Y26J2rISYlvGRem8LXGGok/FeVXkOcQxaR2QRvMY4ENlVPazClO/5UascgOx4uWxPBww T56g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554381; x=1703159181; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xzZ0BgGaxayTSFzsb/BEZRjubDF9VvMmh4DxIfBVmak=; b=IVby1khYszT2azGDm4LqJlcymF9Gk8wHsW8dvocVSdOnShtUd33FAWaR5zYw0wLeZI YPk5154XGeNOocbF39m0+0Q+UgzQPDfwZGf0GN5zTM75oxmc8EomNJTrV9VwyBwDeVCc MVIMVq/xIh0efsNBglaPT+9xaz/qpbKH4P6g7ZGj50Lt1/an6Nr5FpHDFxgp/P4NPsHs alVOmxvPOU5XpW8rrZQtg2fw1p0mwHc0cRtiPd2Qv08E1QaN++m3gQCJwQ1wXlUwuxQG tT8D9tyKQhce+eE3RQPXNZHHQfqKtLwmGmF+/le2v0c6hc/eDjCodRM/7JADDs+7Udy+ pt8w== X-Gm-Message-State: AOJu0YzdZsXsusZV9sKtyBeUkNcAemCoxyaRfDEIzERqDKTg0Y4ykY6P Qw+kJNscBuvXO0QvO1WrREBWsA== X-Google-Smtp-Source: AGHT+IGrfsWF2TK37JNT1iRMcyS+d6NKRvQ7j5MzSSkR+QkO1AqE2szxYNqX3A233KgAaRlYFdYN5g== X-Received: by 2002:a17:907:5c7:b0:a23:f56:98e1 with SMTP id wg7-20020a17090705c700b00a230f5698e1mr903990ejb.18.1702554381683; Thu, 14 Dec 2023 03:46:21 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:21 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 02/21] net: ravb: Rely on PM domain to enable gptp_clk Date: Thu, 14 Dec 2023 13:45:41 +0200 Message-Id: <20231214114600.2451162-3-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea ravb_rzv2m_hw_info::gptp_ref_clk is enabled only for RZ/V2M. RZ/V2M is an ARM64-based device which selects power domains by default and CONFIG_PM. The RZ/V2M Ethernet DT node has proper power-domain binding available in device tree from the commit that added the Ethernet node. (4872ca1f92b0 ("arm64: dts: renesas: r9a09g011: Add ethernet nodes")). Power domain support was available in the rzg2l-cpg.c driver when the Ethernet DT node has been enabled in RZ/V2M device tree. (ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")). Thus, remove the explicit clock enable for gptp_clk (and treat it as the other clocks are treated) as it is not needed and removing it doesn't break the ABI according to the above explanations. By removing the enable/disable operation from the driver we can add runtime PM support (which operates on clocks) w/o the need to handle the gptp_clk in the Ethernet driver functions like ravb_runtime_nop(). PM domain does all that is needed. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - collected tags drivers/net/ethernet/renesas/ravb_main.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 8e67a18b2924..aa5e9b27ed31 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2780,7 +2780,6 @@ static int ravb_probe(struct platform_device *pdev) error = PTR_ERR(priv->gptp_clk); goto out_disable_refclk; } - clk_prepare_enable(priv->gptp_clk); } ndev->max_mtu = info->rx_max_buf_size - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); @@ -2806,7 +2805,7 @@ static int ravb_probe(struct platform_device *pdev) /* Set GTI value */ error = ravb_set_gti(ndev); if (error) - goto out_disable_gptp_clk; + goto out_disable_refclk; /* Request GTI loading */ ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI); @@ -2830,7 +2829,7 @@ static int ravb_probe(struct platform_device *pdev) "Cannot allocate desc base address table (size %d bytes)\n", priv->desc_bat_size); error = -ENOMEM; - goto out_disable_gptp_clk; + goto out_disable_refclk; } for (q = RAVB_BE; q < DBAT_ENTRY_NUM; q++) priv->desc_bat[q].die_dt = DT_EOS; @@ -2893,8 +2892,6 @@ static int ravb_probe(struct platform_device *pdev) /* Stop PTP Clock driver */ if (info->ccc_gac) ravb_ptp_stop(ndev); -out_disable_gptp_clk: - clk_disable_unprepare(priv->gptp_clk); out_disable_refclk: clk_disable_unprepare(priv->refclk); out_release: @@ -2932,7 +2929,6 @@ static void ravb_remove(struct platform_device *pdev) if (error) netdev_err(ndev, "Failed to reset ndev\n"); - clk_disable_unprepare(priv->gptp_clk); clk_disable_unprepare(priv->refclk); pm_runtime_put_sync(&pdev->dev); From patchwork Thu Dec 14 11:45:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492853 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="NVaV6MdF" Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6B4210A for ; Thu, 14 Dec 2023 03:46:24 -0800 (PST) Received: by mail-ej1-x62a.google.com with SMTP id a640c23a62f3a-a22f59c6aeaso253610366b.2 for ; Thu, 14 Dec 2023 03:46:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554383; x=1703159183; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=YimeFaEHAC3lIu4QGMGIH0XFkFOK3pB7g8Rtk8OXULw=; b=NVaV6MdFFn44vQOJ+T5Ea3KVQg2gyfSQXRtVBG80811Bw1y0QPFHPnbE4xxMd+RmZU ShxVe3PU8hmFyrjsBHGkZGl9MSKMm69RyYy0apLcy6a1d/bTymZGSqOPk3xjWv4vCduE 2NPAi35pRpgZu49R0TkEIcgE7u29CEj/sDijwTHMbMBU47gGANB4NDekfWi5fh2jGKPr EpamgjlewSiqBb/ttqQUdgoB8sX4bze6b7gj0qOWzI4wR7bAat6hkDyZQQm4OhNspXFz cRIF11Ide+Z/p0WaZ4taEohoG8LPWitYv3Xd9k/BJyE5RYsmKykNZkZJIKQPtTdJnM3I mu3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554383; x=1703159183; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YimeFaEHAC3lIu4QGMGIH0XFkFOK3pB7g8Rtk8OXULw=; b=PvSOO3gmdP6GUffTAfD6+fonCJ4F9H2HzSnlY6lKlwBi3Me+ErE1RxvpT1fw322Uhj rhyzBFTfI+ObACrozkm9/MZgUeYWeQfXdmxT+VzGC/mCLbPnWcNKMEo4UC3+bGU831+b wO5xZxTrCiLHzyw7155O8IBIiE6J0SJ40D6zrqyLZ5OWvfCwHLo8RBFvfEmXzy0K+cBG 9Mt3b/nEINybMiCMD6UnPeBSA+3i94TCsSKh0OgV/+s52xPVfYjwFnHs6jc7gpSaKF/e IzA1zllTP6l+F5SgFTnUkSnqGRZ6Cq8/LzmtvhGhcGJ+jpzAD4gVc7I+re6+CChY52yM S/+w== X-Gm-Message-State: AOJu0Yymg1t5w1Q5Pny6eAl+bFhMASmsLP8L0U6h/fmcqqL+UIiKFt/w dHwGWhkN6BNEu1PLxwmhE4Bq8g== X-Google-Smtp-Source: AGHT+IGCn2/UbIdGnznzhJ0TGCQKSt7Gts2t4IoBzSpbr36Rkj3nYjorrXYeBtJoiUGaYtkZs1R4kQ== X-Received: by 2002:a17:907:2955:b0:a02:8b23:895d with SMTP id et21-20020a170907295500b00a028b23895dmr3746075ejc.35.1702554383237; Thu, 14 Dec 2023 03:46:23 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:22 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 03/21] net: ravb: Make reset controller support mandatory Date: Thu, 14 Dec 2023 13:45:42 +0200 Message-Id: <20231214114600.2451162-4-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea On the RZ/G3S SoC the reset controller is mandatory for the IP to work. The device tree binding documentation for the ravb driver specifies that the resets are mandatory. Based on this, make the resets mandatory also in driver for all ravb devices. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov Reviewed-by: Geert Uytterhoeven --- Changes in v2: - collected tags drivers/net/ethernet/renesas/ravb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index aa5e9b27ed31..b4d5a14ac4e5 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2645,7 +2645,7 @@ static int ravb_probe(struct platform_device *pdev) return -EINVAL; } - rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL); + rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); if (IS_ERR(rstc)) return dev_err_probe(&pdev->dev, PTR_ERR(rstc), "failed to get cpg reset\n"); From patchwork Thu Dec 14 11:45:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492854 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="Txa6w5xm" Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B35F123 for ; Thu, 14 Dec 2023 03:46:26 -0800 (PST) Received: by mail-ed1-x52c.google.com with SMTP id 4fb4d7f45d1cf-550dd0e3304so7460797a12.1 for ; Thu, 14 Dec 2023 03:46:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554385; x=1703159185; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=PL5VROIQlUnuTnBZqVb2KKr5+vHUGpVIHNw8m0ZONHU=; b=Txa6w5xmmyEoli356lA+ucuv/peYFuyf6grVed9GrzHIrbYFN9wvFUpFBLvkgXD2VD S3GYhVrmlzbZ7PuHcjxFe/p+uSjt/R+JkAu4XzYjLQv3p6nMpoXMaNgbcWuVdLB7JF50 F9myfw4fw1ZnAaX1gVQOzMe+nsCjqxU8Z7c3/G2V24AJuqx4D+DXfCi/w/+KnBeHmt9K l3NwvkEIffbtRaI992uEXd9XwyJUPdbtWrddjQ3Pp0GbtqY1R6WbJPTUgAWKHM7kULrw 9uch6FJX8JNqjPIKKqE534aKOHHQLTxBAL/ghku6XV6unQdbng5vaTkO1w7/tC1xanGQ 6tRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554385; x=1703159185; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=PL5VROIQlUnuTnBZqVb2KKr5+vHUGpVIHNw8m0ZONHU=; b=IGMDYXjWrWD24B3fyf/+TkUf4M3X4aYm2o0UszMQQl1ZdSdOovEXJySXoHn2sRvZNu 0sDtYa6Jz8CBqvczKbz7X5YpPH6C9Nh4nDqAqHW10ErZ3NLVMdphGJeJ2H4ZMUKYBARD vhFC5Dgm8ox++hHSK2FsBwFR2cfwGLbPsq+6ygcBSnAIvVXa+9xVoKFKj3Yg4YO4wpDz rqetyHNKu54vy061OvbP4ZEXNO02sC6Tv9qIKllzI5lRlylIDeci/5YlnWZ5L/5uDl/L /EcksvTstajXtP7cR1B2bJCku6OVHd+nTkfdHmB0oH4JklRHwqV+/8P0nS3r/7X3X+QE eVZQ== X-Gm-Message-State: AOJu0YwJYYW2W3THTTvfw2sqS8GeQ/Yen5t0qW+uzOyK9ZSD6yZnGPbJ bRoX4qzNKJ3pHGstHqkgTUC8gQ== X-Google-Smtp-Source: AGHT+IFilY+iQeeK0x22eHDsUc6bGf7W5xarJ763eOpTEUGRRm8kqwNrurYkInmGp1MIRP3FbelzjA== X-Received: by 2002:a17:906:5350:b0:9b2:c583:cd71 with SMTP id j16-20020a170906535000b009b2c583cd71mr5817776ejo.50.1702554384854; Thu, 14 Dec 2023 03:46:24 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:24 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 04/21] net: ravb: Switch to SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() and pm_ptr() Date: Thu, 14 Dec 2023 13:45:43 +0200 Message-Id: <20231214114600.2451162-5-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea SET_SYSTEM_SLEEP_PM_OPS() and SET_RUNTIME_PM_OPS() are deprecated now and require __maybe_unused protection against unused function warnings. The usage of pm_ptr() and SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() allows the compiler to see the functions, thus suppressing the warning. Thus drop the __maybe_unused markings. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov Reviewed-by: Geert Uytterhoeven --- Changes in v2: - collected tags drivers/net/ethernet/renesas/ravb_main.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index b4d5a14ac4e5..82085bb9b7a3 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2978,7 +2978,7 @@ static int ravb_wol_restore(struct net_device *ndev) return disable_irq_wake(priv->emac_irq); } -static int __maybe_unused ravb_suspend(struct device *dev) +static int ravb_suspend(struct device *dev) { struct net_device *ndev = dev_get_drvdata(dev); struct ravb_private *priv = netdev_priv(ndev); @@ -3000,7 +3000,7 @@ static int __maybe_unused ravb_suspend(struct device *dev) return ret; } -static int __maybe_unused ravb_resume(struct device *dev) +static int ravb_resume(struct device *dev) { struct net_device *ndev = dev_get_drvdata(dev); struct ravb_private *priv = netdev_priv(ndev); @@ -3063,7 +3063,7 @@ static int __maybe_unused ravb_resume(struct device *dev) return ret; } -static int __maybe_unused ravb_runtime_nop(struct device *dev) +static int ravb_runtime_nop(struct device *dev) { /* Runtime PM callback shared between ->runtime_suspend() * and ->runtime_resume(). Simply returns success. @@ -3076,8 +3076,8 @@ static int __maybe_unused ravb_runtime_nop(struct device *dev) } static const struct dev_pm_ops ravb_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(ravb_suspend, ravb_resume) - SET_RUNTIME_PM_OPS(ravb_runtime_nop, ravb_runtime_nop, NULL) + SYSTEM_SLEEP_PM_OPS(ravb_suspend, ravb_resume) + RUNTIME_PM_OPS(ravb_runtime_nop, ravb_runtime_nop, NULL) }; static struct platform_driver ravb_driver = { @@ -3085,7 +3085,7 @@ static struct platform_driver ravb_driver = { .remove_new = ravb_remove, .driver = { .name = "ravb", - .pm = &ravb_dev_pm_ops, + .pm = pm_ptr(&ravb_dev_pm_ops), .of_match_table = ravb_match_table, }, }; From patchwork Thu Dec 14 11:45:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492855 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="ebcRxg6k" Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47827124 for ; Thu, 14 Dec 2023 03:46:27 -0800 (PST) Received: by mail-ed1-x530.google.com with SMTP id 4fb4d7f45d1cf-551ee7d5214so1029806a12.0 for ; Thu, 14 Dec 2023 03:46:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554386; x=1703159186; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sboPzcqED4l7A2TcVT8TTFqV3DguoQYe1ei2qrslI+E=; b=ebcRxg6kZ6cjtU0xL4eBRKIbE+gPxPeJ3BYGM4TCCvSvMaRG5QIqhI63YeGOF41/CL 2rVetTJdjjOYkFASXmuTSmrvr+9RQlfZhmMfZVMlpF5BHLucnIzNfHwf2FHHk1FPpxrQ YGKjwGih8kuKQmzSE9CTUWxOosTTPi7H/phQGFw3MSZ6xP3POdxRkto3YoUZdpu9L6AV Sa1O47InUGCYa4vCBfmCYoRGpur9/0GoRQZWOfGZE+wHR2xm4SNnj76jp5UgyA/1kFvl ssuQtcoN5pgrz6tJQMnQDXd7UPyhBq9kMtv/4RPGFOQCTQ93AsUxa252ti0YmD3/ZGmC 3BCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554386; x=1703159186; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sboPzcqED4l7A2TcVT8TTFqV3DguoQYe1ei2qrslI+E=; b=n/gupYgFxYnwA9kAgTHEXsOt0YgZo+vCLnDmbKUodliYrlOZwVUWeif5bCZHqvzL0m yyZbsHSfqQgywtNbM4rx+tSfgpSbSXuK0QiZxvdoV+8cfy50Vlp5XisA+JRnAyHq5MHW VlXk5zi6j/33v4jtz90SdHV98Vcp9CisGSumpGo1qZVmbjjHDdFmjHZ6zxkVI9DBKHoM ULKxZWO8XENFS+8AT1QnyImjxngUXnGDJu2SNVxCkLunzrNkaU0fBfSbjz8E5yM7g2IK 9fNajqEa/gkTDdQE28hFxgT2e7S+6AHgqpNAkpQbPMSZocKeM2cMIW4C0NQpUMpYnMVT C7ZQ== X-Gm-Message-State: AOJu0YyhBP4zfaQ0liPYwxa+C0LY6s3RPgvBLTs8/X6SFDSkmvBS02nK r11HOp2zinz3meUGFnFGwBB8dw== X-Google-Smtp-Source: AGHT+IHl53VNtTjSgWUmsHo7m90haNzQ56Bx9egUjEPl/J+iHBivUUh8qpwlQivBaht+nSz2egnnTQ== X-Received: by 2002:a17:906:104d:b0:a19:c793:c85c with SMTP id j13-20020a170906104d00b00a19c793c85cmr8063016ejj.6.1702554386392; Thu, 14 Dec 2023 03:46:26 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:26 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 05/21] net: ravb: Use tabs instead of spaces Date: Thu, 14 Dec 2023 13:45:44 +0200 Message-Id: <20231214114600.2451162-6-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Use tabs instead of spaces in the ravb_set_rate_gbeth() function. This aligns with the coding style requirements. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - collected tags drivers/net/ethernet/renesas/ravb_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 82085bb9b7a3..5a57383762e7 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -85,13 +85,13 @@ static void ravb_set_rate_gbeth(struct net_device *ndev) struct ravb_private *priv = netdev_priv(ndev); switch (priv->speed) { - case 10: /* 10BASE */ + case 10: /* 10BASE */ ravb_write(ndev, GBETH_GECMR_SPEED_10, GECMR); break; - case 100: /* 100BASE */ + case 100: /* 100BASE */ ravb_write(ndev, GBETH_GECMR_SPEED_100, GECMR); break; - case 1000: /* 1000BASE */ + case 1000: /* 1000BASE */ ravb_write(ndev, GBETH_GECMR_SPEED_1000, GECMR); break; } From patchwork Thu Dec 14 11:45:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492856 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="BtVfCesJ" Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77CF2182 for ; Thu, 14 Dec 2023 03:46:29 -0800 (PST) Received: by mail-ej1-x62b.google.com with SMTP id a640c23a62f3a-a1f33c13ff2so688988866b.3 for ; Thu, 14 Dec 2023 03:46:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554388; x=1703159188; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zPmtetqkn+6AHMt4qrWAH+XK1NCRm1PmSoAA4AvSe08=; b=BtVfCesJcX7uXnFqQj+QHIRwpHKXSpwIdKN1kqLlTULuVmWU8Ph3KbRc5+UZdUky6y JSyPtSXAMVFh1eutGr2XZlEGAZ9tRvoGEnpYPbj2weZsmbS4y7qoBnDY+C3b2roG/VuT 2dX9vFNwiBmETk1l9rApf3j+zlHDUfesugHYmNvE+NPdtAWPHvcAtqh/VA3eW/+L1IlD dMM/9ggcQHJcshOv0WAXI6V+IeJRRbgZEYzMq8BKY+dl7iDVd8KEvPrkaI0Hbun8chOd tZDjFTy8/LJEOXasJwmALVe1Kk+fKStlYaKCR/pmH2m78TIuP+1NsCRdlQerBlg2bnS1 uvpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554388; x=1703159188; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zPmtetqkn+6AHMt4qrWAH+XK1NCRm1PmSoAA4AvSe08=; b=Inq/jWIh4B2csRragidRX09aRKawpVAA1B3KKnFNJ9f2+CAQ+CPCRVMnzKSylf5lY/ xHBBuQHcScSkf9cIhQvHV9PrhG4qSGo6jNW7nubcTPrflcA9YA9jbJexm0d1lTYl+WTD pNX+Vwsk6+SMMespeW7Fnd0mDwBdQO5t98GutL2Mp/DZy/AiUEes6liKlNRiYI6XdmDg +NPoraGZEnZ7L4ibdUcGu+CK5xyWnKOBJV5t7tdOGABYnW/ytqox++TxrS+BTa/0pmZe DP2Fc0VxX3aQM7fSbz41ZUZxytpD2VHhml95EMIbO47uMbF1nOY0qB+x/bpybjDgV13D GTNg== X-Gm-Message-State: AOJu0YxCfqoiesScA8fA21Fr7vXG4HMDqpzNO0ViUDrsjletXha1njsP JYeXsfFExeadnodDc69koG/Rhw== X-Google-Smtp-Source: AGHT+IEV1vVXY4yCrxuSZjg06XM9leKb7L6pjYLxoh7jJlhdAxhghURah8mlsJHVPQriywu6r3+kgQ== X-Received: by 2002:a17:907:aa2:b0:a10:f9a8:bfe1 with SMTP id bz2-20020a1709070aa200b00a10f9a8bfe1mr4762907ejc.16.1702554387976; Thu, 14 Dec 2023 03:46:27 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:27 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 06/21] net: ravb: Assert/de-assert reset on suspend/resume Date: Thu, 14 Dec 2023 13:45:45 +0200 Message-Id: <20231214114600.2451162-7-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea RZ/G3S can go to deep sleep states where power to most of the SoC parts is off. When resuming from such a state, the Ethernet controller needs to be reinitialized. De-asserting the reset signal for it should also be done. Thus, add reset assert/de-assert on suspend/resume functions. On the resume function, the de-assert was not reverted in case of failures to give the user a chance to restore the interface (e.g., bringing down/up the interface) in case suspend/resume failed. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - fixed typos in patch description and subject - on ravb_suspend() assert the reset signal in case interface is down; due to this the Sergey's Rb tag was left aside in this version drivers/net/ethernet/renesas/ravb_main.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 5a57383762e7..9a618d8dbfcd 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2985,7 +2985,7 @@ static int ravb_suspend(struct device *dev) int ret; if (!netif_running(ndev)) - return 0; + goto reset_assert; netif_device_detach(ndev); @@ -2997,7 +2997,11 @@ static int ravb_suspend(struct device *dev) if (priv->info->ccc_gac) ravb_ptp_stop(ndev); - return ret; + if (priv->wol_enabled) + return ret; + +reset_assert: + return reset_control_assert(priv->rstc); } static int ravb_resume(struct device *dev) @@ -3005,7 +3009,11 @@ static int ravb_resume(struct device *dev) struct net_device *ndev = dev_get_drvdata(dev); struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; - int ret = 0; + int ret; + + ret = reset_control_deassert(priv->rstc); + if (ret) + return ret; /* If WoL is enabled set reset mode to rearm the WoL logic */ if (priv->wol_enabled) { From patchwork Thu Dec 14 11:45:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492857 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="ZuGXB+eS" Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44D8B193 for ; Thu, 14 Dec 2023 03:46:30 -0800 (PST) Received: by mail-ed1-x533.google.com with SMTP id 4fb4d7f45d1cf-5522bfba795so1931041a12.2 for ; Thu, 14 Dec 2023 03:46:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554389; x=1703159189; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=urXQcBC1I2HSJadX/7B8vUlbLmboqpTqecwWwz/bPS4=; b=ZuGXB+eSIGZ4T0x03M35t+rn/f90z0mV8KJz/OtKj2skFSxpKG6woHKXRvYr257RXf O4D9wFhs9dTFtsakOMBIu4aYV3ZFq6BHhYzP/qRalWr7KeeI7tuHsJdFatmnrex6RWHw kq5rlD+8q8DdLJgx6fzPk0Sh9Xq3jCCxuSDqiBOJDhHalVt+tvZE/mp5DoUyYbrKYVMj KVw+FX2WMBxogAbAO5WRRTK+COsfQxYC0ab/fI65/Yz1IYsLsnjVkR3sox3PdS6Mmq6s Hcl9VHghyTr9PgAMEDfVZFYgedOHQz7db+B3xdeAozAXhl8bCeh/hkZoOpjzYmALnLRv kFCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554389; x=1703159189; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=urXQcBC1I2HSJadX/7B8vUlbLmboqpTqecwWwz/bPS4=; b=aqETFvqvuX+7yjXavGy04s1fxtWxbcgzHeDdQBzyrY8tprDmZ5i0qS2yzHf7XY53KM yj86XQpJgKA0iJH5ugGTXOgIVxU2XJFvJS/4bxGe2AyDUHZSeNeeAOonsgXLZUop9hAT fjYEgXiqW0se9HzI3A318F8DsDreabDKK98jU3zdD7wXf5zBfnwIxYNKe4KNFMICniw9 8R6VFTgk33MQAsaMnnf+R2gBSp0+iMdAAw7BCuxMlGqyCTLserK2XVtqsnbgcpGiMZQ2 pLmwXerUEUPsUt8yYTjzJ30g+xShh9DAN1slkSFe90AHWj5jhOmj5iOJ7CwNYGudhgHG bG5w== X-Gm-Message-State: AOJu0Yw53wPmN1FocR1NjPRHLba1ZHyhd9AvYvxbMzrtVGgBePAtiyuq 5KJYBuo8LpbCbMRJ8OMXZv1gAA== X-Google-Smtp-Source: AGHT+IEqGQoFBiFfzfK3jqMrNe9KA/tUQ/OOWSMGUcII2taRF+pt0OygGdcB8qR+fZU+qYveelsr+w== X-Received: by 2002:a17:906:5a49:b0:a1e:86c2:dccd with SMTP id my9-20020a1709065a4900b00a1e86c2dccdmr4714486ejc.14.1702554389543; Thu, 14 Dec 2023 03:46:29 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:29 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 07/21] net: ravb: Move reference clock enable/disable on runtime PM APIs Date: Thu, 14 Dec 2023 13:45:46 +0200 Message-Id: <20231214114600.2451162-8-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Reference clock could be or not part of the power domain. If it is part of the power domain, the power domain takes care of propertly setting it. In case it is not part of the power domain and full runtime PM support is available in driver the clock will not be propertly disabled/enabled at runtime. For this, keep the prepare/unprepare operations in the driver's probe()/remove() functions and move the enable/disable in runtime PM functions. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - this patch is new and follows the recommendations proposed in the discussion of patch 08/13 ("net: ravb: Rely on PM domain to enable refclk") from v2 drivers/net/ethernet/renesas/ravb_main.c | 88 +++++++++++++----------- 1 file changed, 46 insertions(+), 42 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 9a618d8dbfcd..83691a0f0cc2 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2664,11 +2664,6 @@ static int ravb_probe(struct platform_device *pdev) if (error) goto out_free_netdev; - pm_runtime_enable(&pdev->dev); - error = pm_runtime_resume_and_get(&pdev->dev); - if (error < 0) - goto out_rpm_disable; - if (info->multi_irqs) { if (info->err_mgmt_irqs) irq = platform_get_irq_byname(pdev, "dia"); @@ -2679,7 +2674,7 @@ static int ravb_probe(struct platform_device *pdev) } if (irq < 0) { error = irq; - goto out_release; + goto out_reset_assert; } ndev->irq = irq; @@ -2697,10 +2692,23 @@ static int ravb_probe(struct platform_device *pdev) priv->num_rx_ring[RAVB_NC] = NC_RX_RING_SIZE; } + priv->refclk = devm_clk_get_optional(&pdev->dev, "refclk"); + if (IS_ERR(priv->refclk)) { + error = PTR_ERR(priv->refclk); + goto out_reset_assert; + } + clk_prepare(priv->refclk); + + platform_set_drvdata(pdev, ndev); + pm_runtime_enable(&pdev->dev); + error = pm_runtime_resume_and_get(&pdev->dev); + if (error < 0) + goto out_rpm_disable; + priv->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(priv->addr)) { error = PTR_ERR(priv->addr); - goto out_release; + goto out_rpm_put; } /* The Ether-specific entries in the device structure. */ @@ -2711,7 +2719,7 @@ static int ravb_probe(struct platform_device *pdev) error = of_get_phy_mode(np, &priv->phy_interface); if (error && error != -ENODEV) - goto out_release; + goto out_rpm_put; priv->no_avb_link = of_property_read_bool(np, "renesas,no-ether-link"); priv->avb_link_active_low = @@ -2724,14 +2732,14 @@ static int ravb_probe(struct platform_device *pdev) irq = platform_get_irq_byname(pdev, "ch24"); if (irq < 0) { error = irq; - goto out_release; + goto out_rpm_put; } priv->emac_irq = irq; for (i = 0; i < NUM_RX_QUEUE; i++) { irq = platform_get_irq_byname(pdev, ravb_rx_irqs[i]); if (irq < 0) { error = irq; - goto out_release; + goto out_rpm_put; } priv->rx_irqs[i] = irq; } @@ -2739,7 +2747,7 @@ static int ravb_probe(struct platform_device *pdev) irq = platform_get_irq_byname(pdev, ravb_tx_irqs[i]); if (irq < 0) { error = irq; - goto out_release; + goto out_rpm_put; } priv->tx_irqs[i] = irq; } @@ -2748,14 +2756,14 @@ static int ravb_probe(struct platform_device *pdev) irq = platform_get_irq_byname(pdev, "err_a"); if (irq < 0) { error = irq; - goto out_release; + goto out_rpm_put; } priv->erra_irq = irq; irq = platform_get_irq_byname(pdev, "mgmt_a"); if (irq < 0) { error = irq; - goto out_release; + goto out_rpm_put; } priv->mgmta_irq = irq; } @@ -2764,21 +2772,14 @@ static int ravb_probe(struct platform_device *pdev) priv->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(priv->clk)) { error = PTR_ERR(priv->clk); - goto out_release; + goto out_rpm_put; } - priv->refclk = devm_clk_get_optional(&pdev->dev, "refclk"); - if (IS_ERR(priv->refclk)) { - error = PTR_ERR(priv->refclk); - goto out_release; - } - clk_prepare_enable(priv->refclk); - if (info->gptp_ref_clk) { priv->gptp_clk = devm_clk_get(&pdev->dev, "gptp"); if (IS_ERR(priv->gptp_clk)) { error = PTR_ERR(priv->gptp_clk); - goto out_disable_refclk; + goto out_rpm_put; } } @@ -2799,20 +2800,20 @@ static int ravb_probe(struct platform_device *pdev) /* Set AVB config mode */ error = ravb_set_config_mode(ndev); if (error) - goto out_disable_refclk; + goto out_rpm_put; if (info->gptp || info->ccc_gac) { /* Set GTI value */ error = ravb_set_gti(ndev); if (error) - goto out_disable_refclk; + goto out_rpm_put; /* Request GTI loading */ ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI); /* Check completion status. */ error = ravb_wait(ndev, GCCR, GCCR_LTI, 0); if (error) - goto out_disable_refclk; + goto out_rpm_put; } if (info->internal_delay) { @@ -2829,7 +2830,7 @@ static int ravb_probe(struct platform_device *pdev) "Cannot allocate desc base address table (size %d bytes)\n", priv->desc_bat_size); error = -ENOMEM; - goto out_disable_refclk; + goto out_rpm_put; } for (q = RAVB_BE; q < DBAT_ENTRY_NUM; q++) priv->desc_bat[q].die_dt = DT_EOS; @@ -2875,8 +2876,6 @@ static int ravb_probe(struct platform_device *pdev) netdev_info(ndev, "Base address at %#x, %pM, IRQ %d.\n", (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); - platform_set_drvdata(pdev, ndev); - return 0; out_napi_del: @@ -2892,12 +2891,12 @@ static int ravb_probe(struct platform_device *pdev) /* Stop PTP Clock driver */ if (info->ccc_gac) ravb_ptp_stop(ndev); -out_disable_refclk: - clk_disable_unprepare(priv->refclk); -out_release: +out_rpm_put: pm_runtime_put(&pdev->dev); out_rpm_disable: pm_runtime_disable(&pdev->dev); + clk_unprepare(priv->refclk); +out_reset_assert: reset_control_assert(rstc); out_free_netdev: free_netdev(ndev); @@ -2929,10 +2928,9 @@ static void ravb_remove(struct platform_device *pdev) if (error) netdev_err(ndev, "Failed to reset ndev\n"); - clk_disable_unprepare(priv->refclk); - pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); + clk_unprepare(priv->refclk); reset_control_assert(priv->rstc); free_netdev(ndev); platform_set_drvdata(pdev, NULL); @@ -3071,21 +3069,27 @@ static int ravb_resume(struct device *dev) return ret; } -static int ravb_runtime_nop(struct device *dev) +static int ravb_runtime_suspend(struct device *dev) { - /* Runtime PM callback shared between ->runtime_suspend() - * and ->runtime_resume(). Simply returns success. - * - * This driver re-initializes all registers after - * pm_runtime_get_sync() anyway so there is no need - * to save and restore registers here. - */ + struct net_device *ndev = dev_get_drvdata(dev); + struct ravb_private *priv = netdev_priv(ndev); + + clk_disable(priv->refclk); + return 0; } +static int ravb_runtime_resume(struct device *dev) +{ + struct net_device *ndev = dev_get_drvdata(dev); + struct ravb_private *priv = netdev_priv(ndev); + + return clk_enable(priv->refclk); +} + static const struct dev_pm_ops ravb_dev_pm_ops = { SYSTEM_SLEEP_PM_OPS(ravb_suspend, ravb_resume) - RUNTIME_PM_OPS(ravb_runtime_nop, ravb_runtime_nop, NULL) + RUNTIME_PM_OPS(ravb_runtime_suspend, ravb_runtime_resume, NULL) }; static struct platform_driver ravb_driver = { From patchwork Thu Dec 14 11:45:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492859 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="YHA90Fx5" Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A1DD1A1 for ; Thu, 14 Dec 2023 03:46:32 -0800 (PST) Received: by mail-ej1-x62b.google.com with SMTP id a640c23a62f3a-a1e7971db2aso926228266b.3 for ; Thu, 14 Dec 2023 03:46:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554391; x=1703159191; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=UvqstCJTSxpQ0zTFtZeVFyf9XwS489IYbBY9tfQ8I8w=; b=YHA90Fx5I0cqQCkOrzTgfef48t0Rv4Tx/CMTl22g7xUdS5+QGJ2zs8USYnHzL5hMBM vu2g0DZN9ncR8e8S6jpA3qKCpioPYE12zLka/DrvUkXYbiMBvDaNiFCY0t7BHKb+Qt5O dfHm2txXvptwludAcCX57vjrnsXhILUfXg+JPHaIMdyfLGx547mFz9k8nE/S9dhUcQjN UjorlfyrVt2G4/ChIrWgQ8y0P9aOfX/i6Uz/SAT9KV/tz7uvHUJUhradi3Hq7HVy9arr /Y/NaV2+PmFDlDSNhTjqoRjyBfnHQ+NjJHk16J7hlsdu2U7F4WruPRrJnVuRpCCBRdto ZYvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554391; x=1703159191; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UvqstCJTSxpQ0zTFtZeVFyf9XwS489IYbBY9tfQ8I8w=; b=higC0unFdUGhJ4491tAih00e8NDEy/C0esGUQB8Q4RL/m3HP6jtvKqikY3TxxuZmtI S4ywoKYD6mATqQHLL4aoircW6fMs4xGRWJl9axslXzzhCQNTWd5XnwusOKLGr92qYxqd whvAs0QxKP7c58Dhu04/Ovwfzlj4lKV7qijtvfNxDD+kQb+kkzxv4vYE4zqWsRZ/DDGW OP6/Uv+C4rpIyLTzC6U+DKMHSNB6Uf+Wb2vh7udx+brgKe/ebFl5Bg1Y++XEnNX4WQth Lr8yvDz3xfYrixM1yjamry4T20Wpfy9jvS2sjhuYNLCJ14MCD9Ix7LR7PCrSnXpV6jQm 46mg== X-Gm-Message-State: AOJu0YzBoUK++Kg7NiF0KNtgWM1PJn590Is9iOPaw4twIIdve9zpZONI O0Pf6Dbe8d/VFfN8II5Ly0FmLQ== X-Google-Smtp-Source: AGHT+IFgAP23xaHhWugO0C8DEtcDbctnuWlDzqn1ezvfAwo7Xo5UqKOcKz77/sBDQ6B+eyrxjZz8FQ== X-Received: by 2002:a17:906:3f5b:b0:a19:a19a:eab5 with SMTP id f27-20020a1709063f5b00b00a19a19aeab5mr4216369ejj.110.1702554391078; Thu, 14 Dec 2023 03:46:31 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:30 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 08/21] net: ravb: Move the IRQs get and request in the probe function Date: Thu, 14 Dec 2023 13:45:47 +0200 Message-Id: <20231214114600.2451162-9-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Move the IRQs get and request in the driver's probe function. As some IP variants switches to reset operation mode as a result of setting module standby through clock enable/disable APIs, to implement runtime PM the resource parsing and requests are moved in the probe function and IP settings are moved in the open functions. This is a preparatory change to add runtime PM support for all IP variants. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 274 +++++++++++------------ 1 file changed, 132 insertions(+), 142 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 83691a0f0cc2..d7f6e8ea8e79 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1731,7 +1731,7 @@ static inline int ravb_hook_irq(unsigned int irq, irq_handler_t handler, name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s", ndev->name, ch); if (!name) return -ENOMEM; - error = request_irq(irq, handler, 0, name, ndev); + error = devm_request_irq(dev, irq, handler, 0, name, ndev); if (error) netdev_err(ndev, "cannot request IRQ %s\n", name); @@ -1755,63 +1755,16 @@ 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; napi_enable(&priv->napi[RAVB_BE]); if (info->nc_queues) napi_enable(&priv->napi[RAVB_NC]); - if (!info->multi_irqs) { - error = request_irq(ndev->irq, ravb_interrupt, IRQF_SHARED, - ndev->name, ndev); - if (error) { - netdev_err(ndev, "cannot request IRQ\n"); - goto out_napi_off; - } - } else { - error = ravb_hook_irq(ndev->irq, ravb_multi_interrupt, ndev, - dev, "ch22:multi"); - if (error) - goto out_napi_off; - error = ravb_hook_irq(priv->emac_irq, ravb_emac_interrupt, ndev, - dev, "ch24:emac"); - if (error) - goto out_free_irq; - error = ravb_hook_irq(priv->rx_irqs[RAVB_BE], ravb_be_interrupt, - ndev, dev, "ch0:rx_be"); - if (error) - goto out_free_irq_emac; - error = ravb_hook_irq(priv->tx_irqs[RAVB_BE], ravb_be_interrupt, - ndev, dev, "ch18:tx_be"); - if (error) - goto out_free_irq_be_rx; - error = ravb_hook_irq(priv->rx_irqs[RAVB_NC], ravb_nc_interrupt, - ndev, dev, "ch1:rx_nc"); - if (error) - goto out_free_irq_be_tx; - error = ravb_hook_irq(priv->tx_irqs[RAVB_NC], ravb_nc_interrupt, - ndev, dev, "ch19:tx_nc"); - if (error) - goto out_free_irq_nc_rx; - - if (info->err_mgmt_irqs) { - error = ravb_hook_irq(priv->erra_irq, ravb_multi_interrupt, - ndev, dev, "err_a"); - if (error) - goto out_free_irq_nc_tx; - error = ravb_hook_irq(priv->mgmta_irq, ravb_multi_interrupt, - ndev, dev, "mgmt_a"); - if (error) - goto out_free_irq_erra; - } - } - /* Device init */ error = ravb_dmac_init(ndev); if (error) - goto out_free_irq_mgmta; + goto out_napi_off; ravb_emac_init(ndev); /* Initialise PTP Clock driver */ @@ -1832,26 +1785,6 @@ static int ravb_open(struct net_device *ndev) if (info->gptp) ravb_ptp_stop(ndev); ravb_stop_dma(ndev); -out_free_irq_mgmta: - if (!info->multi_irqs) - goto out_free_irq; - if (info->err_mgmt_irqs) - free_irq(priv->mgmta_irq, ndev); -out_free_irq_erra: - if (info->err_mgmt_irqs) - free_irq(priv->erra_irq, ndev); -out_free_irq_nc_tx: - free_irq(priv->tx_irqs[RAVB_NC], ndev); -out_free_irq_nc_rx: - free_irq(priv->rx_irqs[RAVB_NC], ndev); -out_free_irq_be_tx: - free_irq(priv->tx_irqs[RAVB_BE], ndev); -out_free_irq_be_rx: - free_irq(priv->rx_irqs[RAVB_BE], ndev); -out_free_irq_emac: - free_irq(priv->emac_irq, ndev); -out_free_irq: - free_irq(ndev->irq, ndev); out_napi_off: if (info->nc_queues) napi_disable(&priv->napi[RAVB_NC]); @@ -2177,19 +2110,6 @@ static int ravb_close(struct net_device *ndev) cancel_work_sync(&priv->work); - 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); - free_irq(priv->rx_irqs[RAVB_BE], ndev); - free_irq(priv->emac_irq, ndev); - if (info->err_mgmt_irqs) { - free_irq(priv->erra_irq, ndev); - free_irq(priv->mgmta_irq, ndev); - } - } - free_irq(ndev->irq, ndev); - if (info->nc_queues) napi_disable(&priv->napi[RAVB_NC]); napi_disable(&priv->napi[RAVB_BE]); @@ -2616,6 +2536,127 @@ static void ravb_parse_delay_mode(struct device_node *np, struct net_device *nde } } +static int ravb_get_irqs(struct ravb_private *priv) +{ + const char *err_a_irq_name = NULL, *mgmt_a_irq_name = NULL; + const struct ravb_hw_info *info = priv->info; + struct platform_device *pdev = priv->pdev; + struct net_device *ndev = priv->ndev; + const char *irq_name, *emac_irq_name; + int i, irq; + + if (!info->multi_irqs) { + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + ndev->irq = irq; + return 0; + } + + if (info->err_mgmt_irqs) { + irq_name = "dia"; + emac_irq_name = "line3"; + err_a_irq_name = "err_a"; + mgmt_a_irq_name = "mgmt_a"; + } else { + irq_name = "ch22"; + emac_irq_name = "ch24"; + } + + irq = platform_get_irq_byname(pdev, irq_name); + if (irq < 0) + return irq; + ndev->irq = irq; + + irq = platform_get_irq_byname(pdev, emac_irq_name); + if (irq < 0) + return irq; + priv->emac_irq = irq; + + if (err_a_irq_name) { + irq = platform_get_irq_byname(pdev, "err_a"); + if (irq < 0) + return irq; + priv->erra_irq = irq; + } + + if (mgmt_a_irq_name) { + irq = platform_get_irq_byname(pdev, "mgmt_a"); + if (irq < 0) + return irq; + priv->mgmta_irq = irq; + } + + for (i = 0; i < NUM_RX_QUEUE; i++) { + irq = platform_get_irq_byname(pdev, ravb_rx_irqs[i]); + if (irq < 0) + return irq; + priv->rx_irqs[i] = irq; + } + for (i = 0; i < NUM_TX_QUEUE; i++) { + irq = platform_get_irq_byname(pdev, ravb_tx_irqs[i]); + if (irq < 0) + return irq; + priv->tx_irqs[i] = irq; + } + + return 0; +} + +static int ravb_request_irqs(struct ravb_private *priv) +{ + const struct ravb_hw_info *info = priv->info; + struct net_device *ndev = priv->ndev; + struct device *dev = &priv->pdev->dev; + int error; + + if (!info->multi_irqs) { + error = devm_request_irq(dev, ndev->irq, ravb_interrupt, IRQF_SHARED, + ndev->name, ndev); + if (error) + netdev_err(ndev, "cannot request IRQ\n"); + + return error; + } + + error = ravb_hook_irq(ndev->irq, ravb_multi_interrupt, ndev, + dev, "ch22:multi"); + if (error) + return error; + error = ravb_hook_irq(priv->emac_irq, ravb_emac_interrupt, ndev, + dev, "ch24:emac"); + if (error) + return error; + error = ravb_hook_irq(priv->rx_irqs[RAVB_BE], ravb_be_interrupt, + ndev, dev, "ch0:rx_be"); + if (error) + return error; + error = ravb_hook_irq(priv->tx_irqs[RAVB_BE], ravb_be_interrupt, + ndev, dev, "ch18:tx_be"); + if (error) + return error; + error = ravb_hook_irq(priv->rx_irqs[RAVB_NC], ravb_nc_interrupt, + ndev, dev, "ch1:rx_nc"); + if (error) + return error; + error = ravb_hook_irq(priv->tx_irqs[RAVB_NC], ravb_nc_interrupt, + ndev, dev, "ch19:tx_nc"); + if (error) + return error; + + if (!info->err_mgmt_irqs) + return 0; + + error = ravb_hook_irq(priv->erra_irq, ravb_multi_interrupt, + ndev, dev, "err_a"); + if (error) + return error; + + return ravb_hook_irq(priv->mgmta_irq, ravb_multi_interrupt, + ndev, dev, "mgmt_a"); +} + static void ravb_set_delay_mode(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); @@ -2635,9 +2676,8 @@ static int ravb_probe(struct platform_device *pdev) struct reset_control *rstc; struct ravb_private *priv; struct net_device *ndev; - int error, irq, q; struct resource *res; - int i; + int error, q; if (!np) { dev_err(&pdev->dev, @@ -2664,20 +2704,6 @@ static int ravb_probe(struct platform_device *pdev) if (error) goto out_free_netdev; - if (info->multi_irqs) { - if (info->err_mgmt_irqs) - irq = platform_get_irq_byname(pdev, "dia"); - else - irq = platform_get_irq_byname(pdev, "ch22"); - } else { - irq = platform_get_irq(pdev, 0); - } - if (irq < 0) { - error = irq; - goto out_reset_assert; - } - ndev->irq = irq; - SET_NETDEV_DEV(ndev, &pdev->dev); priv = netdev_priv(ndev); @@ -2692,6 +2718,14 @@ static int ravb_probe(struct platform_device *pdev) priv->num_rx_ring[RAVB_NC] = NC_RX_RING_SIZE; } + error = ravb_get_irqs(priv); + if (error) + goto out_reset_assert; + + error = ravb_request_irqs(priv); + if (error) + goto out_reset_assert; + priv->refclk = devm_clk_get_optional(&pdev->dev, "refclk"); if (IS_ERR(priv->refclk)) { error = PTR_ERR(priv->refclk); @@ -2725,50 +2759,6 @@ 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->multi_irqs) { - if (info->err_mgmt_irqs) - irq = platform_get_irq_byname(pdev, "line3"); - else - irq = platform_get_irq_byname(pdev, "ch24"); - if (irq < 0) { - error = irq; - goto out_rpm_put; - } - priv->emac_irq = irq; - for (i = 0; i < NUM_RX_QUEUE; i++) { - irq = platform_get_irq_byname(pdev, ravb_rx_irqs[i]); - if (irq < 0) { - error = irq; - goto out_rpm_put; - } - priv->rx_irqs[i] = irq; - } - for (i = 0; i < NUM_TX_QUEUE; i++) { - irq = platform_get_irq_byname(pdev, ravb_tx_irqs[i]); - if (irq < 0) { - error = irq; - goto out_rpm_put; - } - priv->tx_irqs[i] = irq; - } - - if (info->err_mgmt_irqs) { - irq = platform_get_irq_byname(pdev, "err_a"); - if (irq < 0) { - error = irq; - goto out_rpm_put; - } - priv->erra_irq = irq; - - irq = platform_get_irq_byname(pdev, "mgmt_a"); - if (irq < 0) { - error = irq; - goto out_rpm_put; - } - priv->mgmta_irq = irq; - } - } - priv->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(priv->clk)) { error = PTR_ERR(priv->clk); From patchwork Thu Dec 14 11:45:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492858 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; 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([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:32 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 09/21] net: ravb: Split GTI computation and set operations Date: Thu, 14 Dec 2023 13:45:48 +0200 Message-Id: <20231214114600.2451162-10-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea ravb_set_gti() was computing the value of GTI based on the reference clock rate and then applied it to register. This was done on the driver's probe function. In order to implement runtime PM for all IP variants (as some IP variants switches to reset operation mode (and thus the register's content is lost) when module standby is configured through clock APIs) the GTI was split in 2 parts: one computing the value of the GTI register (done in the driver's probe function) and one applying the computed value to register (done in the driver's ndo_open API). Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb.h | 2 + drivers/net/ethernet/renesas/ravb_main.c | 110 ++++++++++++----------- 2 files changed, 58 insertions(+), 54 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index e0f8276cffed..76202395b68d 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -1106,6 +1106,8 @@ struct ravb_private { const struct ravb_hw_info *info; struct reset_control *rstc; + + uint64_t gti_tiv; }; static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index d7f6e8ea8e79..5e01e03e1b43 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1750,6 +1750,51 @@ static int ravb_set_reset_mode(struct net_device *ndev) return error; } +static int ravb_set_gti(struct net_device *ndev) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + + if (!(info->gptp || info->ccc_gac)) + return 0; + + ravb_write(ndev, priv->gti_tiv, GTI); + + /* Request GTI loading */ + ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI); + + /* Check completion status. */ + return ravb_wait(ndev, GCCR, GCCR_LTI, 0); +} + +static int ravb_compute_gti(struct net_device *ndev) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + struct device *dev = ndev->dev.parent; + unsigned long rate; + + if (!(info->gptp || info->ccc_gac)) + return 0; + + if (info->gptp_ref_clk) + rate = clk_get_rate(priv->gptp_clk); + else + rate = clk_get_rate(priv->clk); + if (!rate) + return -EINVAL; + + priv->gti_tiv = div64_ul(1000000000ULL << 20, rate); + + if (priv->gti_tiv < GTI_TIV_MIN || priv->gti_tiv > GTI_TIV_MAX) { + dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n", + priv->gti_tiv, GTI_TIV_MIN, GTI_TIV_MAX); + return -EINVAL; + } + + return 0; +} + /* Network device open function for Ethernet AVB */ static int ravb_open(struct net_device *ndev) { @@ -1767,6 +1812,10 @@ static int ravb_open(struct net_device *ndev) goto out_napi_off; ravb_emac_init(ndev); + error = ravb_set_gti(ndev); + if (error) + goto out_dma_stop; + /* Initialise PTP Clock driver */ if (info->gptp) ravb_ptp_init(ndev, priv->pdev); @@ -1784,6 +1833,7 @@ static int ravb_open(struct net_device *ndev) /* Stop PTP Clock driver */ if (info->gptp) ravb_ptp_stop(ndev); +out_dma_stop: ravb_stop_dma(ndev); out_napi_off: if (info->nc_queues) @@ -2449,34 +2499,6 @@ static const struct of_device_id ravb_match_table[] = { }; MODULE_DEVICE_TABLE(of, ravb_match_table); -static int ravb_set_gti(struct net_device *ndev) -{ - struct ravb_private *priv = netdev_priv(ndev); - const struct ravb_hw_info *info = priv->info; - struct device *dev = ndev->dev.parent; - unsigned long rate; - uint64_t inc; - - if (info->gptp_ref_clk) - rate = clk_get_rate(priv->gptp_clk); - else - rate = clk_get_rate(priv->clk); - if (!rate) - return -EINVAL; - - inc = div64_ul(1000000000ULL << 20, rate); - - if (inc < GTI_TIV_MIN || inc > GTI_TIV_MAX) { - dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n", - inc, GTI_TIV_MIN, GTI_TIV_MAX); - return -EINVAL; - } - - ravb_write(ndev, inc, GTI); - - return 0; -} - static int ravb_set_config_mode(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); @@ -2792,19 +2814,9 @@ static int ravb_probe(struct platform_device *pdev) if (error) goto out_rpm_put; - if (info->gptp || info->ccc_gac) { - /* Set GTI value */ - error = ravb_set_gti(ndev); - if (error) - goto out_rpm_put; - - /* Request GTI loading */ - ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI); - /* Check completion status. */ - error = ravb_wait(ndev, GCCR, GCCR_LTI, 0); - if (error) - goto out_rpm_put; - } + error = ravb_compute_gti(ndev); + if (error) + goto out_rpm_put; if (info->internal_delay) { ravb_parse_delay_mode(np, ndev); @@ -3020,19 +3032,9 @@ static int ravb_resume(struct device *dev) if (ret) return ret; - if (info->gptp || info->ccc_gac) { - /* Set GTI value */ - ret = ravb_set_gti(ndev); - if (ret) - return ret; - - /* Request GTI loading */ - ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI); - /* Check completion status. */ - ret = ravb_wait(ndev, GCCR, GCCR_LTI, 0); - if (ret) - return ret; - } + ret = ravb_set_gti(ndev); + if (ret) + return ret; if (info->internal_delay) ravb_set_delay_mode(ndev); From patchwork Thu Dec 14 11:45:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492860 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="ooVfqKUk" Received: from mail-ej1-x636.google.com (mail-ej1-x636.google.com [IPv6:2a00:1450:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53B5812F for ; Thu, 14 Dec 2023 03:46:36 -0800 (PST) Received: by mail-ej1-x636.google.com with SMTP id a640c23a62f3a-a1f8a1e9637so102534166b.1 for ; Thu, 14 Dec 2023 03:46:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554394; 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([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:34 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 10/21] net: ravb: Move delay mode set in the driver's ndo_open API Date: Thu, 14 Dec 2023 13:45:49 +0200 Message-Id: <20231214114600.2451162-11-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Delay parse and set were done in the driver's probe API. As some IP variants switch to reset mode (and thus registers' content is lost) when setting clocks (due to module standby functionality) to be able to implement runtime PM keep the delay parsing in the driver's probe function and move the delay apply function to the driver's ndo_open API. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 37 ++++++++++++++---------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 5e01e03e1b43..04eaa1967651 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1795,6 +1795,21 @@ static int ravb_compute_gti(struct net_device *ndev) return 0; } +static void ravb_set_delay_mode(struct net_device *ndev) +{ + struct ravb_private *priv = netdev_priv(ndev); + u32 set = 0; + + if (!priv->info->internal_delay) + return; + + if (priv->rxcidm) + set |= APSR_RDM; + if (priv->txcidm) + set |= APSR_TDM; + ravb_modify(ndev, APSR, APSR_RDM | APSR_TDM, set); +} + /* Network device open function for Ethernet AVB */ static int ravb_open(struct net_device *ndev) { @@ -1806,6 +1821,8 @@ static int ravb_open(struct net_device *ndev) if (info->nc_queues) napi_enable(&priv->napi[RAVB_NC]); + ravb_set_delay_mode(ndev); + /* Device init */ error = ravb_dmac_init(ndev); if (error) @@ -2530,6 +2547,9 @@ static void ravb_parse_delay_mode(struct device_node *np, struct net_device *nde bool explicit_delay = false; u32 delay; + if (!priv->info->internal_delay) + return; + if (!of_property_read_u32(np, "rx-internal-delay-ps", &delay)) { /* Valid values are 0 and 1800, according to DT bindings */ priv->rxcidm = !!delay; @@ -2679,18 +2699,6 @@ static int ravb_request_irqs(struct ravb_private *priv) ndev, dev, "mgmt_a"); } -static void ravb_set_delay_mode(struct net_device *ndev) -{ - struct ravb_private *priv = netdev_priv(ndev); - u32 set = 0; - - if (priv->rxcidm) - set |= APSR_RDM; - if (priv->txcidm) - set |= APSR_TDM; - ravb_modify(ndev, APSR, APSR_RDM | APSR_TDM, set); -} - static int ravb_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -2818,10 +2826,7 @@ static int ravb_probe(struct platform_device *pdev) if (error) goto out_rpm_put; - if (info->internal_delay) { - ravb_parse_delay_mode(np, ndev); - ravb_set_delay_mode(ndev); - } + ravb_parse_delay_mode(np, ndev); /* Allocate descriptor base address table */ priv->desc_bat_size = sizeof(struct ravb_desc) * DBAT_ENTRY_NUM; From patchwork Thu Dec 14 11:45:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492861 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="gryyX4Y6" Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E721912B for ; Thu, 14 Dec 2023 03:46:37 -0800 (PST) Received: by mail-ed1-x534.google.com with SMTP id 4fb4d7f45d1cf-54c77e0835bso11103498a12.2 for ; Thu, 14 Dec 2023 03:46:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554396; x=1703159196; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=lR5Cjb3g5JwSTu3j/K8ArNRp5NJou/sw/M1aYXvPkhE=; b=gryyX4Y6UY59iIdoIvoVNQbrEJ94YU9HfU3wjgLIP/OpjCse6cSY9v0Q1yvikxxU58 AtAFQJ78WRBndmjC0tLCBLt71fUZTVcODl9BRyM2CSNgYw6NkT1x7WhTssQMH9S0pvXw xXG4Z56d79I9g5kGyBJXgwN5T3LxmQUi2ROk8n4y3JgH0Xbl4kGIAdqMnP8QEhOSwbal xmiN77e4n1g19FI3SRkPV0ZNB9pAY6IlhTj2vxoOTb4RKeLOY1qccznWHhQ1IZ+h1dwZ 7GldsMsUw9wHI1lgQ9mpbgCO8LA1HiBnRr+8yclOH2tqNbUcq+haASEVPTu0OHeAZWZy f87A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554396; x=1703159196; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lR5Cjb3g5JwSTu3j/K8ArNRp5NJou/sw/M1aYXvPkhE=; b=eGYHZXzPJ70EqodblS9RVBP4Arj7k2U69elHGfsrh/Ui93Vxw3uI/Ffd+2lI1NOJIv 1HQUuVq07cQdvsTic0SWGFgTNalWtcf0vJi5QLO/Je+/lNnCq+DPirRmzOZwXCR8ZfqQ VyZ0ia4LTUSf6SYKY6It+nevs/ohfN0TSR64mviWZ2xMN2KZ7rFjt8BHravFkNYgarwc lllNS6guUdpnE0FYNnShBXrxoOFZsvA9qKNqn949+iZbMqq+QB7gT8ILLRruxhbM3jOz plSG1Tzgf6hfakoQfHeZQbkZzLfGviYoazivAlwkHN6qCOfvjUUk+j9+kwaUo9i14wLv zYKA== X-Gm-Message-State: AOJu0YyxK38SyE/FZVmBayw/QKymq0SX516JyWLudKD6YsIGoEeasc/O fnygxXQwZgZpVPzZBACHdiGrsg== X-Google-Smtp-Source: AGHT+IGTEA8XdvK5DIgTXUJDZNcrpoxh+EdMHgeULkwRzquHNIZ6hTg2ARSBoQED7sSDbafP7bbF/g== X-Received: by 2002:a17:906:53:b0:a22:fc0f:9878 with SMTP id 19-20020a170906005300b00a22fc0f9878mr1424003ejg.16.1702554396449; Thu, 14 Dec 2023 03:46:36 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:36 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 11/21] net: ravb: Move DBAT configuration to the driver's ndo_open API Date: Thu, 14 Dec 2023 13:45:50 +0200 Message-Id: <20231214114600.2451162-12-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea DBAT setup was done in the driver's probe API. As some IP variants switch to reset mode (and thus registers' content is lost) when setting clocks (due to module standby functionality) to be able to implement runtime PM move the DBAT configuration in the driver's ndo_open API. This commit prepares the code for the addition of runtime PM. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 04eaa1967651..6b8ca08be35e 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1822,6 +1822,7 @@ static int ravb_open(struct net_device *ndev) napi_enable(&priv->napi[RAVB_NC]); ravb_set_delay_mode(ndev); + ravb_write(ndev, priv->desc_bat_dma, DBAT); /* Device init */ error = ravb_dmac_init(ndev); @@ -2841,7 +2842,6 @@ static int ravb_probe(struct platform_device *pdev) } for (q = RAVB_BE; q < DBAT_ENTRY_NUM; q++) priv->desc_bat[q].die_dt = DT_EOS; - ravb_write(ndev, priv->desc_bat_dma, DBAT); /* Initialise HW timestamp list */ INIT_LIST_HEAD(&priv->ts_skb_list); From patchwork Thu Dec 14 11:45:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492862 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="kvJ9INdg" Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2D97193 for ; Thu, 14 Dec 2023 03:46:39 -0800 (PST) Received: by mail-lf1-x130.google.com with SMTP id 2adb3069b0e04-50bfa5a6cffso9338709e87.0 for ; Thu, 14 Dec 2023 03:46:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554398; x=1703159198; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=YUpk9YEw4O5jZFB/MhCu88qNpJzCkLxLIB6VsR179rU=; b=kvJ9INdg0ZqMNqg8of9oBNzFNJJFxmQ70NToJ82NrikOjaxrizVuPoNIqcBLuY/+MD T1oo8gLFyEyXjhVMAZKvOHsYmBnVeP7XM+SGiO5pX0YTkfxHW5XfpBI15FVAAZymQ3Eu 5QsPdbE2qjJNp219I0CFCIexY4OwHZbGR/yom+uSMYbt/kqBMHX/GT5v8OdnPqPtrN2g hFv2SqqMJNQ0B9mTNAwRv3jMAjVQ3QW6HAAfb5czcaVASuAjHk6ZEbg8pwUd0Xv1flQA SFdGx6V7oDTlp/XyR79Odwvr1zHAn5L8im5BPr9eYcr2ivNfxjnFGNrfIfRWV6FayLun xMHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554398; x=1703159198; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YUpk9YEw4O5jZFB/MhCu88qNpJzCkLxLIB6VsR179rU=; b=etgLY5A6JFgpdjvThSDyGC79PLokNSYblZJmGSVZfFDPFq9eSoXfC9DPlWjHVTDm8p wU14NBP3Q89m7FW8BZHtn3xXaFjzEn8OmK9ze7j9NxysynZyf+CEhPfEE6g4qDbJOnD6 piJ1QgTxAmVYWn38elM3Z+zZ2vRJ2r98c83jK6A0fVB/bV6P3tnpXV2EtXuzY8CaRsYr Ri+bGfvpQEboocwOsFrrOCkNQ5Jzplk4PtE/qL3CspkyxILN/odzZWmf9dfu+yj+NAvs SMKA8kQRs0xNhmInVKgZPHLvNfNhrJ3rv+1OvRqb7i/PA63P9QnscETQ84C6MFni1/+E ldww== X-Gm-Message-State: AOJu0YzTnTFhtu+QkTB1nqsk3tYgIZlli4pOPomsChzHUpT2EpOQJMmA Zw/IIXXUoG+5hgWQ2kKB6ZKN/A== X-Google-Smtp-Source: AGHT+IE0y3Td04brKCB75tYN8zqof2o97uZkz4II4IxWKFLNIX1b77Ouhh0D+qPezdfOihQoAIzZ1g== X-Received: by 2002:ac2:4e8f:0:b0:50c:44:919e with SMTP id o15-20020ac24e8f000000b0050c0044919emr3721718lfr.108.1702554398125; Thu, 14 Dec 2023 03:46:38 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:37 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 12/21] net: ravb: Move ptp initialization in the driver's ndo_open API for ccc_gac platorms Date: Thu, 14 Dec 2023 13:45:51 +0200 Message-Id: <20231214114600.2451162-13-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea The initialization sequence for PTP is the same for platforms with ccc_gac and gptp (according to chapter "Figure 50.71 Flow of gPTP Initialization (Normal, Common to All Modes)" of the R-Car Series, 3rd generation hardware manual and chapter "Figure 37A.53 Flow of gPTP Initialization (Normal, Common to All Modes)" of the RZ/G Series hardware manual). As some IP variants switch to reset mode (and thus registers' content is lost) when setting clocks (due to module standby functionality) to be able to implement runtime PM, move the PTP initialization to the driver's ndo_open API. This commit prepares the code for the addition of runtime PM. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 6b8ca08be35e..db9222fc57c2 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1835,7 +1835,7 @@ static int ravb_open(struct net_device *ndev) goto out_dma_stop; /* Initialise PTP Clock driver */ - if (info->gptp) + if (info->gptp || info->ccc_gac) ravb_ptp_init(ndev, priv->pdev); /* PHY control start */ @@ -1849,7 +1849,7 @@ static int ravb_open(struct net_device *ndev) out_ptp_stop: /* Stop PTP Clock driver */ - if (info->gptp) + if (info->gptp || info->ccc_gac) ravb_ptp_stop(ndev); out_dma_stop: ravb_stop_dma(ndev); @@ -2151,7 +2151,7 @@ static int ravb_close(struct net_device *ndev) ravb_write(ndev, 0, TIC); /* Stop PTP Clock driver */ - if (info->gptp) + if (info->gptp || info->ccc_gac) ravb_ptp_stop(ndev); /* Set the config mode to stop the AVB-DMAC's processes */ @@ -2846,10 +2846,6 @@ static int ravb_probe(struct platform_device *pdev) /* Initialise HW timestamp list */ INIT_LIST_HEAD(&priv->ts_skb_list); - /* Initialise PTP Clock driver */ - if (info->ccc_gac) - ravb_ptp_init(ndev, pdev); - /* Debug message level */ priv->msg_enable = RAVB_DEF_MSG_ENABLE; @@ -2894,10 +2890,6 @@ static int ravb_probe(struct platform_device *pdev) out_dma_free: dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat, priv->desc_bat_dma); - - /* Stop PTP Clock driver */ - if (info->ccc_gac) - ravb_ptp_stop(ndev); out_rpm_put: pm_runtime_put(&pdev->dev); out_rpm_disable: @@ -2924,10 +2916,6 @@ static void ravb_remove(struct platform_device *pdev) ravb_mdio_release(priv); - /* Stop PTP Clock driver */ - if (info->ccc_gac) - ravb_ptp_stop(ndev); - dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat, priv->desc_bat_dma); From patchwork Thu Dec 14 11:45:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492864 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="Eeq6inLy" Received: from mail-ej1-x636.google.com (mail-ej1-x636.google.com [IPv6:2a00:1450:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D6BAD47 for ; Thu, 14 Dec 2023 03:46:41 -0800 (PST) Received: by mail-ej1-x636.google.com with SMTP id a640c23a62f3a-a1f33c13ff2so689005866b.3 for ; Thu, 14 Dec 2023 03:46:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554399; x=1703159199; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=n7dNH0yi6XzttRpIS4P56ybelKHS8ihp5wjWT0GHLak=; b=Eeq6inLy5W2mrO354iuSXJVYQZU/JiVrKYFzyhVi0WPclNViMhg9B8TBysbWHKTEBM BO283Wx5dxCl5T99e6p6RjiULDAwOEmZV0ND3POX9y42nc76z5pqs330Fwna97we1+72 KadgywhLlXigJ7PTw3nsGHgUgCjXxa94c/864bIA70I4X8bkf9nBrBFt489t3vayRfXz 98YZWuw2e53qwqbZexp7HV9WLRgl6vKh0Pv83Gx2UhKn2t7wEL2dJXSCxwpUk7Y3UUqV x1dYzLSgFAuGseRQuZZggs5CTHO9TwzQ98P9PCUQm4w2CriGOE31U07WTToPKdSHKp8w 4CPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554399; x=1703159199; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=n7dNH0yi6XzttRpIS4P56ybelKHS8ihp5wjWT0GHLak=; b=KBxlSrqOzI7rp7U3FJSrAlV/0ljoD1abL+J0oQtJzZoO7g+Mkub1GvNINzCDp+R8Hq rCst6ijqMYaR0NzxJsyFiPu3OgZzfqucymqMUAHBr3ubT8I1ufQt2YU/ff39snU0YMqC GYdytuR1TE3p92iMhOEaXeYX7xt0aj3diG3sVFz4zPXsbjc/C0D/NKOfkbugxCR3bKWE 9cYMMgIwICixA6jFDYSNDil1AAeYHYO0kkNxrGsD1e5ztuLIFa2hXezPjkhq8MaZNw9W ewD/O+QrVlsLBDYRq8fuWlf5BZ32pp7vHqsNPB0Z6pjbOc/oZcHZn/QPiaAm8mGBiGxp 0Byg== X-Gm-Message-State: AOJu0Yx1sNq8S0fv6wwW1qOnPAm73G0U/0XFtazIRlloDebvXi9Qla9x KwahVXCnLPGqjmD9Hkkc9cSo5Q== X-Google-Smtp-Source: AGHT+IEwULcW6kIbUcVj2dm26sY++GOUztxBHkNp2Xd5nW0QXKxtbqRqRpO6mxt8JWERKWyBfds/1w== X-Received: by 2002:a17:906:dfc7:b0:a1c:aebe:ff2 with SMTP id jt7-20020a170906dfc700b00a1caebe0ff2mr5282957ejc.37.1702554399757; Thu, 14 Dec 2023 03:46:39 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:39 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 13/21] net: ravb: Set config mode in ndo_open and reset mode in ndo_close Date: Thu, 14 Dec 2023 13:45:52 +0200 Message-Id: <20231214114600.2451162-14-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea As some IP variants switch to reset mode (and thus registers' content is lost) when setting clocks (due to module standby functionality) to be able to implement runtime PM and save more power, set the IP's operation mode to reset at the end of the probe. Along with it, in the ndo_open API the IP will be switched to configuration, then operational mode. In the ndo_close API, the IP will be switched back to reset mode. This allows implementing runtime PM and, along with it, save more power when the IP is not used. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 91 ++++++++++++++---------- 1 file changed, 54 insertions(+), 37 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index db9222fc57c2..31a1f8a83652 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1738,6 +1738,30 @@ static inline int ravb_hook_irq(unsigned int irq, irq_handler_t handler, return error; } +static int ravb_set_config_mode(struct net_device *ndev) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + int error; + + if (info->gptp) { + ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG); + /* Set CSEL value */ + ravb_modify(ndev, CCC, CCC_CSEL, CCC_CSEL_HPB); + } else if (info->ccc_gac) { + ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG | + CCC_GAC | CCC_CSEL_HPB); + } else { + ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG); + } + + error = ravb_wait(ndev, CSR, CSR_OPS, CSR_OPS_CONFIG); + if (error) + netdev_err(ndev, "failed to switch device to config mode\n"); + + return error; +} + static int ravb_set_reset_mode(struct net_device *ndev) { int error; @@ -1821,13 +1845,19 @@ static int ravb_open(struct net_device *ndev) if (info->nc_queues) napi_enable(&priv->napi[RAVB_NC]); + /* Set AVB config mode */ + error = ravb_set_config_mode(ndev); + if (error) + goto out_napi_off; + ravb_set_delay_mode(ndev); ravb_write(ndev, priv->desc_bat_dma, DBAT); /* Device init */ error = ravb_dmac_init(ndev); if (error) - goto out_napi_off; + goto out_set_reset; + ravb_emac_init(ndev); error = ravb_set_gti(ndev); @@ -1853,6 +1883,8 @@ static int ravb_open(struct net_device *ndev) ravb_ptp_stop(ndev); out_dma_stop: ravb_stop_dma(ndev); +out_set_reset: + ravb_set_reset_mode(ndev); out_napi_off: if (info->nc_queues) napi_disable(&priv->napi[RAVB_NC]); @@ -2187,6 +2219,9 @@ static int ravb_close(struct net_device *ndev) if (info->nc_queues) ravb_ring_free(ndev, RAVB_NC); + /* Set reset mode. */ + ravb_set_reset_mode(ndev); + return 0; } @@ -2517,30 +2552,6 @@ static const struct of_device_id ravb_match_table[] = { }; MODULE_DEVICE_TABLE(of, ravb_match_table); -static int ravb_set_config_mode(struct net_device *ndev) -{ - struct ravb_private *priv = netdev_priv(ndev); - const struct ravb_hw_info *info = priv->info; - int error; - - if (info->gptp) { - ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG); - /* Set CSEL value */ - ravb_modify(ndev, CCC, CCC_CSEL, CCC_CSEL_HPB); - } else if (info->ccc_gac) { - ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG | - CCC_GAC | CCC_CSEL_HPB); - } else { - ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG); - } - - error = ravb_wait(ndev, CSR, CSR_OPS, CSR_OPS_CONFIG); - if (error) - netdev_err(ndev, "failed to switch device to config mode\n"); - - return error; -} - /* Set tx and rx clock internal delay modes */ static void ravb_parse_delay_mode(struct device_node *np, struct net_device *ndev) { @@ -2818,11 +2829,6 @@ static int ravb_probe(struct platform_device *pdev) ndev->netdev_ops = &ravb_netdev_ops; ndev->ethtool_ops = &ravb_ethtool_ops; - /* Set AVB config mode */ - error = ravb_set_config_mode(ndev); - if (error) - goto out_rpm_put; - error = ravb_compute_gti(ndev); if (error) goto out_rpm_put; @@ -2857,11 +2863,16 @@ static int ravb_probe(struct platform_device *pdev) eth_hw_addr_random(ndev); } + /* Set config mode as this is needed for PHY initialization. */ + error = ravb_config(ndev); + if (error) + goto out_rpm_put; + /* MDIO bus init */ error = ravb_mdio_init(priv); if (error) { dev_err(&pdev->dev, "failed to initialize MDIO\n"); - goto out_dma_free; + goto out_reset_mode; } netif_napi_add(ndev, &priv->napi[RAVB_BE], ravb_poll); @@ -2875,19 +2886,30 @@ static int ravb_probe(struct platform_device *pdev) device_set_wakeup_capable(&pdev->dev, 1); + /* Reset MAC as the module will be runtime disabled at this moment. + * This saves power. MAC will be switched back to configuration mode + * in ravb_open(). + */ + error = ravb_set_reset_mode(ndev); + if (error) + goto out_netdev_unregister; + /* Print device information */ netdev_info(ndev, "Base address at %#x, %pM, IRQ %d.\n", (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); return 0; +out_netdev_unregister: + unregister_netdev(ndev); out_napi_del: if (info->nc_queues) netif_napi_del(&priv->napi[RAVB_NC]); netif_napi_del(&priv->napi[RAVB_BE]); ravb_mdio_release(priv); -out_dma_free: +out_reset_mode: + ravb_set_reset_mode(ndev); dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat, priv->desc_bat_dma); out_rpm_put: @@ -2907,7 +2929,6 @@ static void ravb_remove(struct platform_device *pdev) struct net_device *ndev = platform_get_drvdata(pdev); struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; - int error; unregister_netdev(ndev); if (info->nc_queues) @@ -2919,10 +2940,6 @@ static void ravb_remove(struct platform_device *pdev) dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat, priv->desc_bat_dma); - error = ravb_set_reset_mode(ndev); - if (error) - netdev_err(ndev, "Failed to reset ndev\n"); - pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_unprepare(priv->refclk); From patchwork Thu Dec 14 11:45:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492863 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="CDEYaeaE" Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FB95D54 for ; Thu, 14 Dec 2023 03:46:43 -0800 (PST) Received: by mail-lf1-x129.google.com with SMTP id 2adb3069b0e04-50bf32c0140so9073332e87.1 for ; Thu, 14 Dec 2023 03:46:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554401; x=1703159201; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9cT7sZVhk3SPH3qfWzj9p6vjX2dF9hm4OYxHa78CzWQ=; b=CDEYaeaE6qduuOmQss6XjTpBXM3l7gS2mus6VDSWgpvsyp5VVU14HtMHCVJG7z5rUX YkkdljRVLrtBpLWUoHHqmN73+boOi/tndrwdDrNwO03k5sScGTIoyMZv1EMB9KzhPAdV eXXr99nB4SQRzrDPDnMsfLd9I1uVo01hmH1PSXz6sI5ltOtO3eq6pA/gfxEnt6WqZuYj GskgPJd7cirHQ9sde+NaB75o769xgmBDu9vcb2MvmzihbVAzZ3NPbsrwmjHek5dOwurS Azdv0m4nc37IAPXIyl2lCCV0+9Fl9g/XAyvZ1Y7JV+lGnX9hALmkfZJVJSqAUdHGps5Q 2UYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554401; x=1703159201; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9cT7sZVhk3SPH3qfWzj9p6vjX2dF9hm4OYxHa78CzWQ=; b=gGPHM2mBgXrHvTEtgKJcp57mpNB5RFY9zjb51n8GFU1pD16LRIjvdYIUw0AtBdOLe6 QrQBtwD8bqF9SoXcGHZaAaKV6WMKuDt9HvsfeM6uCKW4abxi+yDLrcHdfrcbfLFiSK7N B5JYa3gQ9wNXBN4gK7v/K2IJMnTzBEDqj87LMkL82P/1aksG7VfI5Unqgl2gu7Yawl66 mHcLNsY7cp+nHsM/0ksCzVv0ch4I0nqDmQrJXB6XdcHJlhCylLPt9MHHEPG8XVAk5EIY Erc5RwI5w1LXLnFJsG39td0jXHmvwV1PDDTalWJxEG2Q7nSRsl4Y+8FE7pzjkVVUHXbZ 6JEA== X-Gm-Message-State: AOJu0YwZMkbO3ZXZn9MHBTeMrbfkaf8xM88gx1JKswsYtQwYi6tZxsEf 3JAHwzrLnDMFXehIC6SVWxtsCQ== X-Google-Smtp-Source: AGHT+IG971WfjyERHQhZ0TdR63Dq7y7Fb1xD2Xpc2eRNcB9COcCGSdCFifT0aHwVpfyDHrdNy75McA== X-Received: by 2002:a19:ad44:0:b0:50c:2fc:cac with SMTP id s4-20020a19ad44000000b0050c02fc0cacmr4070502lfd.126.1702554401526; Thu, 14 Dec 2023 03:46:41 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:40 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 14/21] net: ravb: Simplify ravb_suspend() Date: Thu, 14 Dec 2023 13:45:53 +0200 Message-Id: <20231214114600.2451162-15-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea As ravb_close() contains now the call to ravb_ptp_stop() for both ccc_gac and gPTP aware platforms, there is no need to keep the separated call in ravb_suspend(). Instead, move it to ravb_wol_setup(). In this way the resulting code is cleaner. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 31a1f8a83652..16450bf241cd 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2968,6 +2968,9 @@ static int ravb_wol_setup(struct net_device *ndev) /* Enable MagicPacket */ ravb_modify(ndev, ECMR, ECMR_MPDE, ECMR_MPDE); + if (priv->info->ccc_gac) + ravb_ptp_stop(ndev); + return enable_irq_wake(priv->emac_irq); } @@ -3000,14 +3003,10 @@ static int ravb_suspend(struct device *dev) netif_device_detach(ndev); if (priv->wol_enabled) - ret = ravb_wol_setup(ndev); - else - ret = ravb_close(ndev); + return ravb_wol_setup(ndev); - if (priv->info->ccc_gac) - ravb_ptp_stop(ndev); - - if (priv->wol_enabled) + ret = ravb_close(ndev); + if (ret) return ret; reset_assert: From patchwork Thu Dec 14 11:45:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492865 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="LoFzQsts" Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F5E7D5E for ; Thu, 14 Dec 2023 03:46:44 -0800 (PST) Received: by mail-ej1-x633.google.com with SMTP id a640c23a62f3a-a1d93da3eb7so928404766b.0 for ; Thu, 14 Dec 2023 03:46:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554403; x=1703159203; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=33vAc5ck7zdvdX0qktOXfLvJPjpSeplyQvjMFmFH8tY=; b=LoFzQstsVKFmbpptn1HQVy1NiqC8PnygBJJAhNpM54Cr8k0uT/Vih+aw8BmqUvYG1s EmtYhdKoEu5Bx7nQjjjFz57MaOu3btxYEAL27cxVYnQs9nlShDo1qCPTa1rs9ItTDPd8 YhKcm9Y+N+6qhI/v6YrD5lcXVw6R0SQkt/0F3g0B2cHPmoSqa2mfIunH8xMLg4oScPg5 MhhTqOlDK1ZuzZaBz73QeBDTkHJ1BE/O/o651PQj3iZBnLpCKAXAuSjMTWHFWTnBC9jd 5SS/rqPuhQOjRyd5tPH7a8r8/1WsVVzxJtOocpoHunTqKJYMWoThAAniuWb2dVtrEAPt Ne7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554403; x=1703159203; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=33vAc5ck7zdvdX0qktOXfLvJPjpSeplyQvjMFmFH8tY=; b=BFCtzVgLsEYEeZFnoSn8u2k4cgsKkog7zYi2aBD7XZVaG1NJRDtRqZb9J2iBp5pMSl izN0rU/GPP2XCF6y7xj6rnM9GuIVp3+gyp64yC4tyhtNKF6WAdE3wdvydq/rnwejLrmd 27efRMucDN4kV7WwutJgLvQChDTluCYtrRU1pmRAIjIx+f2XpwkseKEPrWtZ63pKTpC+ 4FgYEr2bSpjWREvEtozbMQfsefoXilTlT+iDAbTeCX9QH6g8//lts71dV0+0dN9YovS/ oUlbiqfcl5j9uqolMajeG/HTiuZ2KuufN1qeUpxUZTHZ2zHHqCSt5IZoOp60idLes99c tOSw== X-Gm-Message-State: AOJu0YxGe/rOmDEzsCdArtQdVCMMYoT1uEMANh2FELxryHY2DzrLMweY TSO7Cc1ecwGpwmL31c9jZGzgsw== X-Google-Smtp-Source: AGHT+IFyLlweizU3HmYYgch4IUmSBXQSbhxj3U8dxHcyuNzp7kt/p9z7G0OxdVq+g4jtagb4Wh3qWg== X-Received: by 2002:a17:907:c715:b0:a1d:551f:a197 with SMTP id ty21-20020a170907c71500b00a1d551fa197mr5941372ejc.82.1702554403005; Thu, 14 Dec 2023 03:46:43 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:42 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 15/21] net: ravb: Simplify ravb_resume() Date: Thu, 14 Dec 2023 13:45:54 +0200 Message-Id: <20231214114600.2451162-16-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Remove explicit calls to functions that are called ravb_open(). There is no need to have them doubled now that the ravb_open() already contains what is needed for the interface configuration. Along with it, PTP needed configurations were moved to ravb_wol_restore(). With this, code in ravb_resume() is simpler. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 60 ++++++++++-------------- 1 file changed, 24 insertions(+), 36 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 16450bf241cd..b581666e341f 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2978,6 +2978,20 @@ static int ravb_wol_restore(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; + int error; + + /* Set reset mode to rearm the WoL logic. */ + error = ravb_set_reset_mode(ndev); + if (error) + return error; + + /* Set AVB config mode. */ + error = ravb_set_config_mode(ndev); + if (error) + return error; + + if (priv->info->ccc_gac) + ravb_ptp_init(ndev, priv->pdev); if (info->nc_queues) napi_enable(&priv->napi[RAVB_NC]); @@ -3017,55 +3031,29 @@ static int ravb_resume(struct device *dev) { struct net_device *ndev = dev_get_drvdata(dev); struct ravb_private *priv = netdev_priv(ndev); - const struct ravb_hw_info *info = priv->info; int ret; ret = reset_control_deassert(priv->rstc); if (ret) return ret; - /* If WoL is enabled set reset mode to rearm the WoL logic */ + if (!netif_running(ndev)) + return 0; + + /* If WoL is enabled restore the interface. */ if (priv->wol_enabled) { - ret = ravb_set_reset_mode(ndev); + ret = ravb_wol_restore(ndev); if (ret) return ret; } - /* All register have been reset to default values. - * Restore all registers which where setup at probe time and - * reopen device if it was running before system suspended. - */ - - /* Set AVB config mode */ - ret = ravb_set_config_mode(ndev); - if (ret) + /* Reopening the interface will restore the device to the working state. */ + ret = ravb_open(ndev); + if (ret < 0) return ret; - ret = ravb_set_gti(ndev); - if (ret) - return ret; - - if (info->internal_delay) - ravb_set_delay_mode(ndev); - - /* Restore descriptor base address table */ - ravb_write(ndev, priv->desc_bat_dma, DBAT); - - if (priv->info->ccc_gac) - ravb_ptp_init(ndev, priv->pdev); - - if (netif_running(ndev)) { - if (priv->wol_enabled) { - ret = ravb_wol_restore(ndev); - if (ret) - return ret; - } - ret = ravb_open(ndev); - if (ret < 0) - return ret; - ravb_set_rx_mode(ndev); - netif_device_attach(ndev); - } + ravb_set_rx_mode(ndev); + netif_device_attach(ndev); return ret; } From patchwork Thu Dec 14 11:45:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492866 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="VDRP0MYq" Received: from mail-ed1-x52e.google.com (mail-ed1-x52e.google.com [IPv6:2a00:1450:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4846BD67 for ; Thu, 14 Dec 2023 03:46:46 -0800 (PST) Received: by mail-ed1-x52e.google.com with SMTP id 4fb4d7f45d1cf-54c5d041c23so10540519a12.2 for ; Thu, 14 Dec 2023 03:46:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554405; x=1703159205; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=NoiORotVHtzab0Z6R5tqUvsar+MHiUXnH/O7lUfaa34=; b=VDRP0MYqeIxkNCwLg1+URch3+vUo8qgO7a1B9GIQ9sq8G2Jzn6TEJHo4n/kbNcT0TQ UzeoerzztzZ9yt9Jx4oulqrRdu74mLvZQbfL5eT2rsWr8HCLu5BzTj6rk8sHcnFAfTt5 CwiGIJlGtcWm4pz+N3VmlQ5HTAr9vERm11jB6w2taQDq2DtHbcdR8lIPym5PgMTbGuoe FaHH8gDnhn2CmZruZFXLO3lPx1+b3C+KXwogPyZ8IRsBfR2v6NJfy/Tt6j+eSymwZ6Mj fCFpOlymA63cxhPLuY1kd5+3o4wS5N9PWYLoXRETnDiSswU4koAfuYFBRutqcZIQRfSV +K2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554405; x=1703159205; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=NoiORotVHtzab0Z6R5tqUvsar+MHiUXnH/O7lUfaa34=; b=utYX+2hBMdVVnnKqYKfbfRHwzGCBptJwqQzbvLMkFXiZk2FttrlGhIWb//LTSQVerB WferonRzhjeIbIYLjVHb4cqQRqRcmEA93o1mjMZpIiG4fcsTszQFSk1Ye1xNY2VbUP/v p9GGj4pdNugDKB7IrQcfhi3hde1QoMzyV+Qb8504OrDxUF0TDv2AvuX0i/BakDqyuKg5 gW7XIZWMkZTBjgZpOr0rvfiJvGX++kFgmXlS2w94Xbu4abiA9sDjC7YYZwiTMVkQfTlz EXBWzZ9NI4HDPmFRmRUH9WFXoD0NiTFNZSQmVNmPLQ7yHFwPx9vKeOR/t2DBej47fwUR LuQA== X-Gm-Message-State: AOJu0YxZFjoK2nIfPUYHhMFRGbc0YCpnQrKtB5Eu7G2it+F2UgSY5du8 jFQPTvlNN/2iic6UMonNkkHXcw== X-Google-Smtp-Source: AGHT+IEkHkIjbZxyWNnhWgVzwKp1oLjVB6rkXJC6EiXk5LsZBUGVINMSQUgKJqcBBpk9Att/KP854w== X-Received: by 2002:a17:906:de:b0:a19:a1ba:bada with SMTP id 30-20020a17090600de00b00a19a1babadamr2578053eji.128.1702554404767; Thu, 14 Dec 2023 03:46:44 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:44 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 16/21] net: ravb: Keep the reverse order of operations in ravb_close() Date: Thu, 14 Dec 2023 13:45:55 +0200 Message-Id: <20231214114600.2451162-17-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Keep the reverse order of operations in ravb_close() when comparing with ravb_open(). This is the recommended configuration sequence. Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index b581666e341f..38999ef1ea85 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2182,6 +2182,14 @@ static int ravb_close(struct net_device *ndev) ravb_write(ndev, 0, RIC2); ravb_write(ndev, 0, TIC); + /* PHY disconnect */ + if (ndev->phydev) { + phy_stop(ndev->phydev); + phy_disconnect(ndev->phydev); + if (of_phy_is_fixed_link(np)) + of_phy_deregister_fixed_link(np); + } + /* Stop PTP Clock driver */ if (info->gptp || info->ccc_gac) ravb_ptp_stop(ndev); @@ -2200,14 +2208,6 @@ static int ravb_close(struct net_device *ndev) } } - /* PHY disconnect */ - if (ndev->phydev) { - phy_stop(ndev->phydev); - phy_disconnect(ndev->phydev); - if (of_phy_is_fixed_link(np)) - of_phy_deregister_fixed_link(np); - } - cancel_work_sync(&priv->work); if (info->nc_queues) From patchwork Thu Dec 14 11:45:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492868 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="W7zLXBgU" Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA183D7F for ; Thu, 14 Dec 2023 03:46:48 -0800 (PST) Received: by mail-ej1-x62a.google.com with SMTP id a640c23a62f3a-a1ef2f5ed01so1006548266b.0 for ; Thu, 14 Dec 2023 03:46:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554406; x=1703159206; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tYBn9/laLzrg7Vdv2MX/5C0b5odhy/gUWFCra0JFpOw=; b=W7zLXBgU/MmJZmapmnyy1jmsQHZ7zVFjlgXXG1EsktOvneRpT/IuxMOOMw9WM8K56+ SWsoyZ7uC+zoDdYkq+Idik3vzN7uxAA/y3GlzqvxcJS8db8iCKB9Z72NfU0ksgPttFIL Cm0GvfuA7aEYcqrruZpkgwpb3guc/CFjPMCAh3uGWJ3TUOUtqBLlw0TMjvlbqPlvtSTc GteAnq8rhPPTKkTR0IADYOwsJsyrmkouIArwUtjlH4xvHmMM96aRCKb+038EFGSPjpGT iNytUewClQt6tYPHSsY1hhEJnRkFKdZ6BvdZcTLjK3FTah9rN8VmniVvN1ZqgP+E6VTr 2zAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554406; x=1703159206; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=tYBn9/laLzrg7Vdv2MX/5C0b5odhy/gUWFCra0JFpOw=; b=S3bbvZOHwhR6SkiecivmMbE24VGizE6AqDvID58gFvLxQXDD/E/XlAktODwOFW/H2L Aj85Tb0xsIbiwUDBA4DRs9k00SihHtK4Og0ZEa/sFr2aJxfUwFf3n44R8dm5aJTMwgiP GQiiLFfV0PtSOFav+VHImk3VyNLcCorhdMl4jWcKiT8UB8HwAcY7JCL3mOPFlWW+nVng bl5hvj8hasYb2jxBVfNEkEeursvSDXe+eW6v4uL95IEuMtDlf4Mf6PGWOw8NQ1BbdIea ETbCZjQao2MnPOmTJHAaAJOA/3rQE6gRQbesvxSfPCKSzaGZFtMxP4dLjqDw0ZX9f+Hc AP/A== X-Gm-Message-State: AOJu0YxB00t7QpA008UMM5yN3lKio6vYgRvl4yoR0HspoCfa3InF3s53 cwHlqRPa+TY9Zy7gPPdT+iBWPA== X-Google-Smtp-Source: AGHT+IELfCBw9NbcKSq88512K3cgJnjQwOtGysv+vOQMfS/g+oF4gHBjkLsL02Q1+qt0DyW+mANwkw== X-Received: by 2002:a17:906:197:b0:a1b:d7a5:927a with SMTP id 23-20020a170906019700b00a1bd7a5927amr2171533ejb.183.1702554406583; Thu, 14 Dec 2023 03:46:46 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:45 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 17/21] net: ravb: Keep clock request operations grouped together Date: Thu, 14 Dec 2023 13:45:56 +0200 Message-Id: <20231214114600.2451162-18-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Keep clock request operations grouped togeter to have all clock-related code in a single place. This makes the code simpler to follow. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 28 ++++++++++++------------ 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 38999ef1ea85..a2a64c22ec41 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2768,6 +2768,20 @@ static int ravb_probe(struct platform_device *pdev) if (error) goto out_reset_assert; + priv->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(priv->clk)) { + error = PTR_ERR(priv->clk); + goto out_reset_assert; + } + + if (info->gptp_ref_clk) { + priv->gptp_clk = devm_clk_get(&pdev->dev, "gptp"); + if (IS_ERR(priv->gptp_clk)) { + error = PTR_ERR(priv->gptp_clk); + goto out_reset_assert; + } + } + priv->refclk = devm_clk_get_optional(&pdev->dev, "refclk"); if (IS_ERR(priv->refclk)) { error = PTR_ERR(priv->refclk); @@ -2801,20 +2815,6 @@ static int ravb_probe(struct platform_device *pdev) priv->avb_link_active_low = of_property_read_bool(np, "renesas,ether-link-active-low"); - priv->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(priv->clk)) { - error = PTR_ERR(priv->clk); - goto out_rpm_put; - } - - if (info->gptp_ref_clk) { - priv->gptp_clk = devm_clk_get(&pdev->dev, "gptp"); - if (IS_ERR(priv->gptp_clk)) { - error = PTR_ERR(priv->gptp_clk); - goto out_rpm_put; - } - } - ndev->max_mtu = info->rx_max_buf_size - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); ndev->min_mtu = ETH_MIN_MTU; From patchwork Thu Dec 14 11:45:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492867 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="l7aXLowx" Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C449210DE for ; Thu, 14 Dec 2023 03:46:49 -0800 (PST) Received: by mail-lf1-x12c.google.com with SMTP id 2adb3069b0e04-50bffb64178so9432452e87.2 for ; Thu, 14 Dec 2023 03:46:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554408; x=1703159208; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hga+Euca2ffWU8RByuMIoZjdDg4sBJqJ6E8Xj3GqHcU=; b=l7aXLowxuHeivrKOLCrOxfXiS1Nkru3oah4VqGlbWzr/wvwFOVe4IafZKyJEBZsLE7 Q3Kri5ufiU8CX9ITsqdLvbIe3CNkWNKPN7oywmcvoD6u8ulM/EAcowXe7m/MQ1wWkqPT DUGDkvyLM2kFAC3xfLE9aSmrOvXmDV+doBJbK9ywwWDTBjp7JAaiUXwpaZWaLgRFbTIt i9oSBRGOalagrvRzGbHKOWP3IHnlz/VStR+oT0HpnFUIfc8dv74IbvmTZPgTjzEX1rO2 A3H5qLN0KnqwO4A1VU4k8Ur8vxNq9ITQv45AIgcPYmfxRMq5g37AzsTfAVm1/ly/9EYJ 3+Gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554408; x=1703159208; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hga+Euca2ffWU8RByuMIoZjdDg4sBJqJ6E8Xj3GqHcU=; b=wEdjuAfGikrTmbKJnZzU6lHhu3N7g7jjv1ftipGBhCyw7VrJ1djYt9KG4aISs6av+N t3c2UX4ueiM+txL4MtQ9y4RW0DvK6Rcfi2QklyoOUJCk6v3vkte6lTQD03Gszl/7GeEd 1/xTPJw4ovKu9uCiGACifBkcPSKyII1nZninecXDFSblWgjCxnT5PYfV5Vn/Ss1ljC9H z/wHXYLDvH+HkjM9sOofvk95KkM/zmrpfBZDc5fZ4lUyMhCC+lMXpU1/PDsRS5QznWX9 ZhH6Kl/Bvzlk7nIjGePjTwZxI19nKQKI59p2pr9Yku2pNxrkLTsflj1LVS5N3ggRyhxK D/9g== X-Gm-Message-State: AOJu0YyRvcrZDwRsqsusEmLbrvyrkLS/d1f2JWEIs/kwuqCEur8RUxL5 KMzQm6KTOjCeWqGU9vX/SgZlrQ== X-Google-Smtp-Source: AGHT+IFnDBljg1qdRWJ1vg6w1v/K2QMbcocaqB1sTTdcbBfsJx37oqwxmTaj3RmyvXHm2M4a86VXcw== X-Received: by 2002:ac2:554b:0:b0:50b:f09b:e5a6 with SMTP id l11-20020ac2554b000000b0050bf09be5a6mr4073265lfk.112.1702554408129; Thu, 14 Dec 2023 03:46:48 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:47 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 18/21] net: ravb: Return cached statistics if the interface is down Date: Thu, 14 Dec 2023 13:45:57 +0200 Message-Id: <20231214114600.2451162-19-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Return the cached statistics in case the interface is down. There should be no drawback to this, as most of the statistics are updated on the data path and if runtime PM is enabled and the interface is down, the registers that are explicitly read on ravb_get_stats() are zero anyway on most of the IP variants. The commit prepares the code for the addition of runtime PM support. Suggested-by: Sergey Shtylyov Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index a2a64c22ec41..1995cf7ff084 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2110,6 +2110,9 @@ static struct net_device_stats *ravb_get_stats(struct net_device *ndev) const struct ravb_hw_info *info = priv->info; struct net_device_stats *nstats, *stats0, *stats1; + if (!netif_running(ndev)) + return &ndev->stats; + nstats = &ndev->stats; stats0 = &priv->stats[RAVB_BE]; From patchwork Thu Dec 14 11:45:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492869 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="Y+m+p6IK" Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A41A0D7E for ; Thu, 14 Dec 2023 03:46:51 -0800 (PST) Received: by mail-ej1-x62f.google.com with SMTP id a640c23a62f3a-a22ed5f0440so390724666b.1 for ; Thu, 14 Dec 2023 03:46:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554410; x=1703159210; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=14qVcRtLUoxmGTGt0RCexgzno6C/e+ZUicAuIzWdGM8=; b=Y+m+p6IKW7np4yvKR3QIsaIFRHZ7BtcGXWxM4p8gan3plrP0UJWam9zMILEllQkOzp 9nZN8tWs/6VP5hNn3BckBwe7B/eqIQCO7fPH1Oi+aUwC+3Z5UpDue3sPEIHUIi4UfXIw opqQIr70z9f/1eoxLlCdkFD6MeuIcs01NdJ02GBfLxJVFCIa4TEQhspGGBKjZS6oQWA5 M6JYjyYoaPDkaubYLYJa22KQLuhKyqaFSabc7V0+ow5EIAOgEe/tmqj3cObCJPrbHmJc u5sf/tc9qqJS8vmUDg0InKcv4zyuaHnqYfJVCYlkQ5nd/cYang+ex3iHP6Igy2DlGDBn vMhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554410; x=1703159210; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=14qVcRtLUoxmGTGt0RCexgzno6C/e+ZUicAuIzWdGM8=; b=hCXQ+ojBX8bZdCZ5XSTbKNXDYaIAIZK+bxIFPtC2h4kYgdJqi2HGALyI5LErw4JOHV 6cH7uAs/MkE8nwjVn8uZm/skZVHtRaE4bNqZlAsbk+8FfcSXeppzI6o9TRrlL77r4QjT ufomH0Hk7ahMMNMiQJTN5gR7USH0OfNywpNmyvKEjFrXzM8DxkviCxk8fchpThis6PEO YLy/nyjf2VQHkMqMCq+jpktwR2rhk3SO45UlzDrdQX57HPYIm9PuvHO6WIUn/mwaV/AE pY1EXDphswzNbZ9INFA1ZPimYlrHpRefTIeon6TsENYKwxQtKv8g6nQGX5XBztWy1yvL ra2g== X-Gm-Message-State: AOJu0YxJUjH78YiDOJcJ4IH16jffqkJu+nioza0AL7UoCxUtOufZG5zK LRkA5cfmv5LNyzqKCRWfYveMmg== X-Google-Smtp-Source: AGHT+IHmclDok0JjLUg0rjrhrqia2ROzMPs6mwFhPJ8AeOdZc7oPAsNAsr5T6UPZrffIVAhz+HTrRA== X-Received: by 2002:a17:907:7d8b:b0:9e3:f24d:5496 with SMTP id oz11-20020a1709077d8b00b009e3f24d5496mr3578988ejc.28.1702554410066; Thu, 14 Dec 2023 03:46:50 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:49 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 19/21] net: ravb: Do not set promiscuous mode if the interface is down Date: Thu, 14 Dec 2023 13:45:58 +0200 Message-Id: <20231214114600.2451162-20-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Do not allow setting promiscuous mode if the interface is down. In case runtime PM is enabled, and while interface is down, the IP will be in reset mode (as for some platforms disabling/enabling the clocks will switch the IP to standby mode which will lead to losing registers' content). Commit prepares for the addition of runtime PM. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 1995cf7ff084..633346b6cd7c 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2164,6 +2164,9 @@ static void ravb_set_rx_mode(struct net_device *ndev) struct ravb_private *priv = netdev_priv(ndev); unsigned long flags; + if (!netif_running(ndev)) + return; + spin_lock_irqsave(&priv->lock, flags); ravb_modify(ndev, ECMR, ECMR_PRM, ndev->flags & IFF_PROMISC ? ECMR_PRM : 0); From patchwork Thu Dec 14 11:45:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492870 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="TiaSZnUy" Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3147110DD for ; Thu, 14 Dec 2023 03:46:53 -0800 (PST) Received: by mail-ed1-x52d.google.com with SMTP id 4fb4d7f45d1cf-5526c14b8f8so691331a12.3 for ; Thu, 14 Dec 2023 03:46:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554411; x=1703159211; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=f+ln7zR2keR4FaUbDItY5t4KbD1y5Hd3PKZ17DhMaKY=; b=TiaSZnUy1f20q3/f8xwGn1Qi6rnKrt86Ce8V9TTsaair15PPKDs6lkQpr+olTCGR+v LQ+MB5h0jQDfLtv7Ozkf3qASdTWyPguufcwZfMZNPjFJzSzLcvfjQvWCh+IWshEAO5PV pVLzxW2OZptgu37/ErZGC6PC6brc4P4htq9akCN6V+ll3ITOBFjjySfGsBXGQdfZKr30 hUEsAuZsPts/0Wg9GwpxaybMBosf2UC54nHa7mBNL7DwpuG4OPsMJU0HoqC8hGCFbiCl ldhk/XGBoBM46ucMMFznXSnU1wgBRyTceDSfpFzV3U0dZ4D/dBuHTabXyshUVElZd5j3 YzMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554411; x=1703159211; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=f+ln7zR2keR4FaUbDItY5t4KbD1y5Hd3PKZ17DhMaKY=; b=EgSB8RlLeKf+tAGO/nTJ+/6D4LgENIYLHQOlLhIef0/anwtil0rc5YH8tv44pEqC7c vsyfg/OgOz1Ies10QIYROJ3v7FeG9W2j/6S7UyWujE/H4bWklk1fUmoPE1YmFXegb3wB dmO7zsq5d6zVQ5B/KMjmHZPFL8lGB/tgM2vkltKzlKeBmY1ZHkohRVfVb4XUVIY+GpZJ ittHjuBD8CXVG3pX+W95jARGI1+xbKmqxrKU4pdWJPnyU/vpFUsS6Nom3nGhjJ9GWECa U1dtZndKv2w6otooy/An3JeeKHqm1OcUE2PlhyfUpeHENamg5BSYBaWm/o61wqQJ1JIq NS+A== X-Gm-Message-State: AOJu0YzH3d8iChufrLe6vuG1qo5SUY0d9sdFS4qFnoEbB0bwlQwtmp4S CR1Ci3qTkJaHgwh2CJbOqDaDmQ== X-Google-Smtp-Source: AGHT+IFgOBx15mU54bAyPdEXoWDrhA2ZoQXpznNb85CQGcD0zg2tnQGKXuJ2ho/Ah2o3YaitijDfqA== X-Received: by 2002:a17:906:748d:b0:a23:ff8:8528 with SMTP id e13-20020a170906748d00b00a230ff88528mr133043ejl.13.1702554411577; Thu, 14 Dec 2023 03:46:51 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:51 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 20/21] net: ravb: Do not apply RX CSUM settings to hardware if the interface is down Date: Thu, 14 Dec 2023 13:45:59 +0200 Message-Id: <20231214114600.2451162-21-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Do not apply the RX CSUM settings to hardware if the interface is down. In case runtime PM is enabled, and while the interface is down, the IP will be in reset mode (as for some platforms disabling/enabling the clocks will switch the IP to standby mode, which will lead to losing registers' content) and applying settings in reset mode is not an option. Instead, cache the RX CSUM settings and apply them in ravb_open(). Commit prepares for the addition of runtime PM. Signed-off-by: Claudiu Beznea --- Changes in v2: - none; this patch is new drivers/net/ethernet/renesas/ravb_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 633346b6cd7c..9ff943dff522 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1868,6 +1868,15 @@ static int ravb_open(struct net_device *ndev) if (info->gptp || info->ccc_gac) ravb_ptp_init(ndev, priv->pdev); + /* Apply features that might have been changed while the interface + * was down. + */ + if (ndev->hw_features & NETIF_F_RXCSUM) { + u32 val = (ndev->features & NETIF_F_RXCSUM) ? ECMR_RCSC : 0; + + ravb_modify(ndev, ECMR, ECMR_RCSC, val); + } + /* PHY control start */ error = ravb_phy_start(ndev); if (error) @@ -2337,6 +2346,9 @@ static void ravb_set_rx_csum(struct net_device *ndev, bool enable) struct ravb_private *priv = netdev_priv(ndev); unsigned long flags; + if (!netif_running(ndev)) + return; + spin_lock_irqsave(&priv->lock, flags); /* Disable TX and RX */ From patchwork Thu Dec 14 11:46:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13492871 X-Patchwork-Delegate: geert@linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="VH2cq5w1" Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3C26171A for ; Thu, 14 Dec 2023 03:46:54 -0800 (PST) Received: by mail-ed1-x529.google.com with SMTP id 4fb4d7f45d1cf-54f4f7e88feso8845049a12.3 for ; Thu, 14 Dec 2023 03:46:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1702554413; x=1703159213; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=AHdjbrsgC9c7zj7iW7XF4dehsvpJIxxX32noXPZIWvM=; b=VH2cq5w1BQ0Zbv/cNEd4CUZaRS8dyZjc4zE+W1wM4RqrCRVoR5xKR4uoz7hWqSGsHA DbhoR7p5hQ4v/uDaj0XiLwEjCI+im9ODDaJ9CSsxSGirOfFQ0IAYjV3OL3ZY1Xjv+W9V oM3GbU3NOcLAWVjdwTVD0bcLROXGqW4Ke5UpA5y5vTzeJR6EHc/tZ/kLz5yPMtPA+gP8 xmpv68vR2iJzUeXGGwRKynq1mn12XMVc3AAV2jA2BomxyfhUwe0LvvQYK+Ex311ELynx mErJJPbFEnscJrKgnWeDBblsz8C0BxMsYZj+M0bB8BsT4G8swO/IuypMyKS6H4pgQlD+ DtvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702554413; x=1703159213; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=AHdjbrsgC9c7zj7iW7XF4dehsvpJIxxX32noXPZIWvM=; b=FmrvzCUl90La4OOemIXvbcfGhuNC0NhHAEZuRMWdlrI5llLkhWKgW4mfRoLpH+xBKe 37+Nox+/HowjOjo+1Zb+w3GAerH2358qF/wpBZLfMUQW5A2VXpYKQoPieSjfKvhWKdir HuQ7gmf9dE7YQFEpQlhJ1wFPB9M0qLGnorLw7R8gS7quTqwFB73uZjDhipSDzZhlranz UG1YOh2qaGvDJbGcStY80WeE1IUDL9BAtV91JePtN+1ozQk+1UvftaA4UPHZvNgyVHzj IGZtzmIe09/kLsqzfSY4dQNXOGoHp4JLEn9/PspLdNQUnXoWBqFr4dAJrnLvCqiQqu5N b/7w== X-Gm-Message-State: AOJu0Yz2JUTTCTeZw3LEUU1V8TNunwkPDoFzyULlG/wACC1caql5tEFe gvSCtzqj8EG6WHf/NR46qy0Qjg== X-Google-Smtp-Source: AGHT+IFrFS+Z+MB4DKzhISgHNRoGJDDklWTn4/FS7HR5/yJpAYoiauOPD4XcVQ8K730XQ5ToztxooQ== X-Received: by 2002:a17:906:284:b0:a19:940f:b9d3 with SMTP id 4-20020a170906028400b00a19940fb9d3mr4327540ejf.25.1702554413073; Thu, 14 Dec 2023 03:46:53 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.103]) by smtp.gmail.com with ESMTPSA id ll9-20020a170907190900b00a1da2f7c1d8sm9240877ejc.77.2023.12.14.03.46.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 03:46:52 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: s.shtylyov@omp.ru, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, richardcochran@gmail.com, p.zabel@pengutronix.de, yoshihiro.shimoda.uh@renesas.com, wsa+renesas@sang-engineering.com, geert+renesas@glider.be Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea Subject: [PATCH net-next v2 21/21] net: ravb: Add runtime PM support Date: Thu, 14 Dec 2023 13:46:00 +0200 Message-Id: <20231214114600.2451162-22-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> References: <20231214114600.2451162-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Add runtime PM support for the ravb driver. As the driver is used by different IP variants, with different behaviors, to be able to have the runtime PM support available for all devices, the preparatory commits moved all the resources parsing and allocations in the driver's probe function and kept the settings for ravb_open(). This is due to the fact that on some IP variants-platforms tuples disabling/enabling the clocks will switch the IP to the reset operation mode where registers' content is lost and reconfiguration needs to be done. For this the rabv_open() function enables the clocks, switches the IP to configuration mode, applies all the registers settings and switches the IP to the operational mode. At the end of ravb_open() IP is ready to send/receive data. In ravb_close() necessary reverts are done (compared with ravb_open()), the IP is switched to reset mode and clocks are disabled. The ethtool APIs or IOCTLs that might execute while the interface is down are either cached (and applied in ravb_open()) or rejected (as at that time the IP is in reset mode). Keeping the IP in the reset mode also increases the power saved (according to the hardware manual). Signed-off-by: Claudiu Beznea Reviewed-by: Sergey Shtylyov --- Changes in v2: - keep RPM support for all platforms drivers/net/ethernet/renesas/ravb_main.c | 47 ++++++++++++++++++++++-- 1 file changed, 44 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 9ff943dff522..0733b63ff910 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1839,16 +1839,21 @@ static int ravb_open(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; + struct device *dev = &priv->pdev->dev; int error; napi_enable(&priv->napi[RAVB_BE]); if (info->nc_queues) napi_enable(&priv->napi[RAVB_NC]); + error = pm_runtime_resume_and_get(dev); + if (error < 0) + goto out_napi_off; + /* Set AVB config mode */ error = ravb_set_config_mode(ndev); if (error) - goto out_napi_off; + goto out_rpm_put; ravb_set_delay_mode(ndev); ravb_write(ndev, priv->desc_bat_dma, DBAT); @@ -1894,6 +1899,9 @@ static int ravb_open(struct net_device *ndev) ravb_stop_dma(ndev); out_set_reset: ravb_set_reset_mode(ndev); +out_rpm_put: + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); out_napi_off: if (info->nc_queues) napi_disable(&priv->napi[RAVB_NC]); @@ -2189,6 +2197,7 @@ static int ravb_close(struct net_device *ndev) struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; struct ravb_tstamp_skb *ts_skb, *ts_skb2; + struct device *dev = &priv->pdev->dev; netif_tx_stop_all_queues(ndev); @@ -2237,6 +2246,9 @@ static int ravb_close(struct net_device *ndev) /* Set reset mode. */ ravb_set_reset_mode(ndev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + return 0; } @@ -2808,6 +2820,8 @@ static int ravb_probe(struct platform_device *pdev) clk_prepare(priv->refclk); platform_set_drvdata(pdev, ndev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 100); + pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); error = pm_runtime_resume_and_get(&pdev->dev); if (error < 0) @@ -2916,6 +2930,9 @@ static int ravb_probe(struct platform_device *pdev) netdev_info(ndev, "Base address at %#x, %pM, IRQ %d.\n", (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + return 0; out_netdev_unregister: @@ -2934,6 +2951,7 @@ static int ravb_probe(struct platform_device *pdev) pm_runtime_put(&pdev->dev); out_rpm_disable: pm_runtime_disable(&pdev->dev); + pm_runtime_dont_use_autosuspend(&pdev->dev); clk_unprepare(priv->refclk); out_reset_assert: reset_control_assert(rstc); @@ -2947,6 +2965,12 @@ static void ravb_remove(struct platform_device *pdev) struct net_device *ndev = platform_get_drvdata(pdev); struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; + struct device *dev = &priv->pdev->dev; + int error; + + error = pm_runtime_resume_and_get(dev); + if (error < 0) + return; unregister_netdev(ndev); if (info->nc_queues) @@ -2958,8 +2982,9 @@ static void ravb_remove(struct platform_device *pdev) dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat, priv->desc_bat_dma); - pm_runtime_put_sync(&pdev->dev); + pm_runtime_put_sync_suspend(&pdev->dev); pm_runtime_disable(&pdev->dev); + pm_runtime_dont_use_autosuspend(dev); clk_unprepare(priv->refclk); reset_control_assert(priv->rstc); free_netdev(ndev); @@ -3041,6 +3066,10 @@ static int ravb_suspend(struct device *dev) if (ret) return ret; + ret = pm_runtime_force_suspend(&priv->pdev->dev); + if (ret) + return ret; + reset_assert: return reset_control_assert(priv->rstc); } @@ -3063,16 +3092,28 @@ static int ravb_resume(struct device *dev) ret = ravb_wol_restore(ndev); if (ret) return ret; + } else { + ret = pm_runtime_force_resume(dev); + if (ret) + return ret; } /* Reopening the interface will restore the device to the working state. */ ret = ravb_open(ndev); if (ret < 0) - return ret; + goto out_rpm_put; ravb_set_rx_mode(ndev); netif_device_attach(ndev); + return 0; + +out_rpm_put: + if (!priv->wol_enabled) { + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + } + return ret; }