From patchwork Wed Jun 7 13:59:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Chevallier X-Patchwork-Id: 13270598 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C0EF1C7EE25 for ; Wed, 7 Jun 2023 12:08:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Wed, 7 Jun 2023 12:08:15 +0000 (UTC) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Florian Fainelli , Heiner Kallweit , Russell King , Vladimir Oltean , Ioana Ciornei , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Maxime Coquelin , Jose Abreu , Alexandre Torgue , Giuseppe Cavallaro , Simon Horman , Maciej Fijalkowski , Feiyang Chen Subject: [PATCH net-next v4 1/5] net: altera-tse: Initialize local structs before using it Date: Wed, 7 Jun 2023 15:59:37 +0200 Message-Id: <20230607135941.407054-2-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230607135941.407054-1-maxime.chevallier@bootlin.com> References: <20230607135941.407054-1-maxime.chevallier@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_050822_396117_F8077283 X-CRM114-Status: GOOD ( 12.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The regmap_config and mdio_regmap_config objects needs to be zeroed before using them. This will cause spurious errors at probe time as config->pad_bits is containing random uninitialized data. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Maxime Chevallier --- V3->V4 : Also zero "mrc" from Maciej's review V2->V3 : No changes V1->V2 : No changes drivers/net/ethernet/altera/altera_tse_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index d866c0f1b503..215f9fb89c5b 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1255,6 +1255,8 @@ static int altera_tse_probe(struct platform_device *pdev) if (ret) goto err_free_netdev; + memset(&pcs_regmap_cfg, 0, sizeof(pcs_regmap_cfg)); + memset(&mrc, 0, sizeof(mrc)); /* SGMII PCS address space. The location can vary depending on how the * IP is integrated. We can have a resource dedicated to it at a specific * address space, but if it's not the case, we fallback to the mdiophy0 From patchwork Wed Jun 7 13:59:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Chevallier X-Patchwork-Id: 13270601 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DA33DC7EE2F for ; Wed, 7 Jun 2023 12:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Wed, 7 Jun 2023 12:08:18 +0000 (UTC) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Florian Fainelli , Heiner Kallweit , Russell King , Vladimir Oltean , Ioana Ciornei , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Maxime Coquelin , Jose Abreu , Alexandre Torgue , Giuseppe Cavallaro , Simon Horman , Maciej Fijalkowski , Feiyang Chen Subject: [PATCH net-next v4 2/5] net: altera_tse: Use the correct Kconfig option for the PCS_LYNX dependency Date: Wed, 7 Jun 2023 15:59:38 +0200 Message-Id: <20230607135941.407054-3-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230607135941.407054-1-maxime.chevallier@bootlin.com> References: <20230607135941.407054-1-maxime.chevallier@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_050822_616633_6B2E2763 X-CRM114-Status: GOOD ( 11.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use the correct Kconfig dependency for altera_tse as PCS_ALTERA_TSE was replaced by PCS_LYNX. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Maxime Chevallier --- V3->V4 : No changes V2->V3 : Fix a typo in the commit title V1->V2 : New patch drivers/net/ethernet/altera/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/altera/Kconfig b/drivers/net/ethernet/altera/Kconfig index 93533ba03429..17985319088c 100644 --- a/drivers/net/ethernet/altera/Kconfig +++ b/drivers/net/ethernet/altera/Kconfig @@ -4,7 +4,7 @@ config ALTERA_TSE depends on HAS_DMA select PHYLIB select PHYLINK - select PCS_ALTERA_TSE + select PCS_LYNX select MDIO_REGMAP select REGMAP_MMIO help From patchwork Wed Jun 7 13:59:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Chevallier X-Patchwork-Id: 13270600 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 83FABC83005 for ; 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Wed, 7 Jun 2023 12:08:20 +0000 (UTC) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Florian Fainelli , Heiner Kallweit , Russell King , Vladimir Oltean , Ioana Ciornei , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Maxime Coquelin , Jose Abreu , Alexandre Torgue , Giuseppe Cavallaro , Simon Horman , Maciej Fijalkowski , Feiyang Chen , Russell King Subject: [PATCH net-next v4 3/5] net: stmmac: make the pcs_lynx cleanup sequence specific to dwmac_socfpga Date: Wed, 7 Jun 2023 15:59:39 +0200 Message-Id: <20230607135941.407054-4-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230607135941.407054-1-maxime.chevallier@bootlin.com> References: <20230607135941.407054-1-maxime.chevallier@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_050825_010143_D6C5A3D1 X-CRM114-Status: GOOD ( 14.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org So far, only the dwmac_socfpga variant of stmmac uses PCS Lynx. Use a dedicated cleanup sequence for dwmac_socfpga instead of using the generic stmmac one. Fixes: 5d1f3fe7d2d5 ("net: stmmac: dwmac-sogfpga: use the lynx pcs driver") Suggested-by: Russell King (Oracle) Signed-off-by: Maxime Chevallier --- V3->V4 : No changes V2->V3 : Removed extra whiteline V1->V2 : New patch drivers/net/ethernet/stmicro/stmmac/common.h | 1 - .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 14 +++++++++++++- drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 3 --- 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 52c5ec553276..16e67c18b6f7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -16,7 +16,6 @@ #include #include #include -#include #include #if IS_ENABLED(CONFIG_VLAN_8021Q) #define STMMAC_VLAN_TAG_USED diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index e399fccbafe5..1fb808be843b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -494,6 +495,17 @@ static int socfpga_dwmac_probe(struct platform_device *pdev) return ret; } +static void socfpga_dwmac_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct stmmac_priv *priv = netdev_priv(ndev); + struct phylink_pcs *pcs = priv->hw->lynx_pcs; + + stmmac_pltfr_remove(pdev); + + lynx_pcs_destroy(pcs); +} + #ifdef CONFIG_PM_SLEEP static int socfpga_dwmac_resume(struct device *dev) { @@ -565,7 +577,7 @@ MODULE_DEVICE_TABLE(of, socfpga_dwmac_match); static struct platform_driver socfpga_dwmac_driver = { .probe = socfpga_dwmac_probe, - .remove_new = stmmac_pltfr_remove, + .remove_new = socfpga_dwmac_remove, .driver = { .name = "socfpga-dwmac", .pm = &socfpga_dwmac_pm_ops, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index c784a6731f08..3db1cb0fd160 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -665,9 +665,6 @@ int stmmac_mdio_unregister(struct net_device *ndev) if (priv->hw->xpcs) xpcs_destroy(priv->hw->xpcs); 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Wed, 7 Jun 2023 12:08:23 +0000 (UTC) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Florian Fainelli , Heiner Kallweit , Russell King , Vladimir Oltean , Ioana Ciornei , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Maxime Coquelin , Jose Abreu , Alexandre Torgue , Giuseppe Cavallaro , Simon Horman , Maciej Fijalkowski , Feiyang Chen , Russell King Subject: [PATCH net-next v4 4/5] net: altera_tse: explicitly disable autoscan on the regmap-mdio bus Date: Wed, 7 Jun 2023 15:59:40 +0200 Message-Id: <20230607135941.407054-5-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230607135941.407054-1-maxime.chevallier@bootlin.com> References: <20230607135941.407054-1-maxime.chevallier@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_050827_293711_0FA72163 X-CRM114-Status: GOOD ( 10.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Set the .autoscan flag to false on the regmap-mdio bus, to avoid using a random uninitialized value. We don't want autoscan in this case as the mdio device is a PCS and not a PHY. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Suggested-by: Russell King (Oracle) Signed-off-by: Maxime Chevallier --- V3->V4 : No changes V2->V3 : New patch drivers/net/ethernet/altera/altera_tse_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 215f9fb89c5b..2e15800e5310 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1288,6 +1288,7 @@ static int altera_tse_probe(struct platform_device *pdev) mrc.regmap = pcs_regmap; mrc.parent = &pdev->dev; mrc.valid_addr = 0x0; + mrc.autoscan = false; /* Rx IRQ */ priv->rx_irq = platform_get_irq_byname(pdev, "rx_irq"); From patchwork Wed Jun 7 13:59:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Chevallier X-Patchwork-Id: 13270603 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0F84EC7EE25 for ; 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Wed, 7 Jun 2023 12:08:25 +0000 (UTC) From: Maxime Chevallier To: davem@davemloft.net Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Florian Fainelli , Heiner Kallweit , Russell King , Vladimir Oltean , Ioana Ciornei , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Maxime Coquelin , Jose Abreu , Alexandre Torgue , Giuseppe Cavallaro , Simon Horman , Maciej Fijalkowski , Feiyang Chen , Russell King Subject: [PATCH net-next v4 5/5] net: dwmac_socfpga: initialize local data for mdio regmap configuration Date: Wed, 7 Jun 2023 15:59:41 +0200 Message-Id: <20230607135941.407054-6-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230607135941.407054-1-maxime.chevallier@bootlin.com> References: <20230607135941.407054-1-maxime.chevallier@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_050830_138235_2AECF2A9 X-CRM114-Status: GOOD ( 13.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Explicitely zero-ize the local mdio_regmap_config data, and explicitely set the .autoscan parameter, as we only have a PCS on this bus. Fixes: 5d1f3fe7d2d5 ("net: stmmac: dwmac-sogfpga: use the lynx pcs driver") Suggested-by: Russell King (Oracle) Suggested-by: Maciej Fijalkowski Signed-off-by: Maxime Chevallier --- V3->V4 : Move pcs_regmap_cfg into a more local block, and zeroize mrc V2->V3 : New patch .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index 1fb808be843b..6267bcb60206 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -389,7 +389,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev) struct net_device *ndev; struct stmmac_priv *stpriv; const struct socfpga_dwmac_ops *ops; - struct regmap_config pcs_regmap_cfg; ops = device_get_match_data(&pdev->dev); if (!ops) { @@ -447,19 +446,22 @@ static int socfpga_dwmac_probe(struct platform_device *pdev) if (ret) goto err_dvr_remove; - memset(&pcs_regmap_cfg, 0, sizeof(pcs_regmap_cfg)); - pcs_regmap_cfg.reg_bits = 16; - pcs_regmap_cfg.val_bits = 16; - pcs_regmap_cfg.reg_shift = REGMAP_UPSHIFT(1); - /* Create a regmap for the PCS so that it can be used by the PCS driver, * if we have such a PCS */ if (dwmac->tse_pcs_base) { + struct regmap_config pcs_regmap_cfg; struct mdio_regmap_config mrc; struct regmap *pcs_regmap; struct mii_bus *pcs_bus; + memset(&pcs_regmap_cfg, 0, sizeof(pcs_regmap_cfg)); + memset(&mrc, 0, sizeof(mrc)); + + pcs_regmap_cfg.reg_bits = 16; + pcs_regmap_cfg.val_bits = 16; + pcs_regmap_cfg.reg_shift = REGMAP_UPSHIFT(1); + pcs_regmap = devm_regmap_init_mmio(&pdev->dev, dwmac->tse_pcs_base, &pcs_regmap_cfg); if (IS_ERR(pcs_regmap)) { @@ -470,6 +472,7 @@ static int socfpga_dwmac_probe(struct platform_device *pdev) mrc.regmap = pcs_regmap; mrc.parent = &pdev->dev; mrc.valid_addr = 0x0; + mrc.autoscan = false; snprintf(mrc.name, MII_BUS_ID_SIZE, "%s-pcs-mii", ndev->name); pcs_bus = devm_mdio_regmap_register(&pdev->dev, &mrc);