From patchwork Thu Oct 29 10:07:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ioana Ciornei X-Patchwork-Id: 11865879 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HK_RANDOM_FROM,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43E35C55178 for ; Thu, 29 Oct 2020 10:09:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C137E20791 for ; Thu, 29 Oct 2020 10:08:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HFOKdwvY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726811AbgJ2KI6 (ORCPT ); Thu, 29 Oct 2020 06:08:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726774AbgJ2KI4 (ORCPT ); Thu, 29 Oct 2020 06:08:56 -0400 Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 477C9C0613CF; Thu, 29 Oct 2020 03:08:55 -0700 (PDT) Received: by mail-ed1-x542.google.com with SMTP id o18so2460569edq.4; Thu, 29 Oct 2020 03:08:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=a7JPSUHSVCY0X61IWDBX82RS+a9PWwyRiHa/9xfMeNg=; b=HFOKdwvYG5xCWR/Ta9Mgy+CpNuahbKALN4Xd3QCof5DmLOCObU4sHnty44J8/d0Jua Ym1L5KBVMXV8XX4vmTeqzRVk+RY2dL8PctV7CtJEklkruI8XhH0LKdnwUYwEGLv4G8b6 Q8vVkhKMqH5h1CDdjS5XNILW5936Siy4yxt7IsUqYzp57OfaE80e4/MH9NEyo4dXAJfe apmFHePj2sI+jqL1p2RLRt+gSA6wm3w+f+g4Dc/+I2Dc3+wTguva8mdz3DUltMTAivOX DFSKRutUOe5oe+0J9zwcha7Lph3W2i3dKvmfPHejRsSC/wE4qrmYq7s8qE6BTZLSsEjL PzYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=a7JPSUHSVCY0X61IWDBX82RS+a9PWwyRiHa/9xfMeNg=; b=gD6KF2zDRxvoAuhD2lZjQKsYHGq89q1lEwL+HX+yp8T9rTSgi+F/ee9ZBtuQtrkFsV WDgchLLJBsHH92C9dzISdslMgqPeONfTeSHy4B5mM1kBHZzSX9+iLSyW9F+0sVTQ6I7U JZ+QyPC+9dzsKNlAIUm+nk4/koB9cvJUv8gbB6cgp/xuCPEDdkwwYDqt4eYvSJf/0Jxa SO/YuUtcG+8jcKYVb0NPienlaZMF4Vqtv9K/WIvVNKdxU+ranMZ7nFKmSYcGkZbiyv7p oC1RYuhpzJVQTtw0COh0bF5FhMRyYTsQz8uQwgG79briKOy2FGK6T/E+2GJciDU5FuUp yHTQ== X-Gm-Message-State: AOAM530ZMryPAQMG6fqA/+VFFyNV4MQPkJCnRfas0SBAnz1dQe/Z+4ug IvjX2ioDlU45+16RgPOtyQE= X-Google-Smtp-Source: ABdhPJxgBqPm9hQcj//Psokwsov/sa8mR498y3fTD7+etK6sfRL6iu7QpTq/X/f1SuL1Cr6OWsCqSw== X-Received: by 2002:a05:6402:289:: with SMTP id l9mr3176855edv.294.1603966133974; Thu, 29 Oct 2020 03:08:53 -0700 (PDT) Received: from yoga-910.localhost ([188.25.2.177]) by smtp.gmail.com with ESMTPSA id m1sm1198650ejj.117.2020.10.29.03.08.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Oct 2020 03:08:53 -0700 (PDT) From: Ioana Ciornei To: Andrew Lunn , Heiner Kallweit , Russell King , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ioana Ciornei , Michael Walle , Florian Fainelli Subject: [PATCH net-next 11/19] net: phy: broadcom: implement generic .handle_interrupt() callback Date: Thu, 29 Oct 2020 12:07:33 +0200 Message-Id: <20201029100741.462818-12-ciorneiioana@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201029100741.462818-1-ciorneiioana@gmail.com> References: <20201029100741.462818-1-ciorneiioana@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Ioana Ciornei In an attempt to actually support shared IRQs in phylib, we now move the responsibility of triggering the phylib state machine or just returning IRQ_NONE, based on the IRQ status register, to the PHY driver. Having 3 different IRQ handling callbacks (.handle_interrupt(), .did_interrupt() and .ack_interrupt() ) is confusing so let the PHY driver implement directly an IRQ handler like any other device driver. Make this driver follow the new convention. Cc: Michael Walle Cc: Florian Fainelli Signed-off-by: Ioana Ciornei --- drivers/net/phy/bcm-cygnus.c | 1 + drivers/net/phy/bcm-phy-lib.c | 19 ++++++++++++++++++ drivers/net/phy/bcm-phy-lib.h | 1 + drivers/net/phy/bcm54140.c | 19 +++++++++++++----- drivers/net/phy/bcm63xx.c | 2 ++ drivers/net/phy/bcm87xx.c | 32 +++++++++++++++++++++---------- drivers/net/phy/broadcom.c | 36 +++++++++++++++++++++++++++++++++++ 7 files changed, 95 insertions(+), 15 deletions(-) diff --git a/drivers/net/phy/bcm-cygnus.c b/drivers/net/phy/bcm-cygnus.c index 9ccf28b0a04d..a236e0b8d04d 100644 --- a/drivers/net/phy/bcm-cygnus.c +++ b/drivers/net/phy/bcm-cygnus.c @@ -258,6 +258,7 @@ static struct phy_driver bcm_cygnus_phy_driver[] = { .config_init = bcm_cygnus_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, .suspend = genphy_suspend, .resume = bcm_cygnus_resume, }, { diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c index ef6825b30323..a32da9ee98ab 100644 --- a/drivers/net/phy/bcm-phy-lib.c +++ b/drivers/net/phy/bcm-phy-lib.c @@ -196,6 +196,25 @@ int bcm_phy_config_intr(struct phy_device *phydev) } EXPORT_SYMBOL_GPL(bcm_phy_config_intr); +irqreturn_t bcm_phy_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, MII_BCM54XX_ISR); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (irq_status == 0) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} +EXPORT_SYMBOL_GPL(bcm_phy_handle_interrupt); + int bcm_phy_read_shadow(struct phy_device *phydev, u16 shadow) { phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow)); diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h index 237a8503c9b4..c3842f87c33b 100644 --- a/drivers/net/phy/bcm-phy-lib.h +++ b/drivers/net/phy/bcm-phy-lib.h @@ -63,6 +63,7 @@ int bcm_phy_modify_rdb(struct phy_device *phydev, u16 rdb, u16 mask, int bcm_phy_ack_intr(struct phy_device *phydev); int bcm_phy_config_intr(struct phy_device *phydev); +irqreturn_t bcm_phy_handle_interrupt(struct phy_device *phydev); int bcm_phy_enable_apd(struct phy_device *phydev, bool dll_pwr_down); diff --git a/drivers/net/phy/bcm54140.c b/drivers/net/phy/bcm54140.c index 8998e68bb26b..f388cacd992a 100644 --- a/drivers/net/phy/bcm54140.c +++ b/drivers/net/phy/bcm54140.c @@ -637,13 +637,22 @@ static int bcm54140_config_init(struct phy_device *phydev) BCM54140_RDB_C_PWR_ISOLATE, 0); } -static int bcm54140_did_interrupt(struct phy_device *phydev) +static irqreturn_t bcm54140_handle_interrupt(struct phy_device *phydev) { - int ret; + int irq_status; + + irq_status = bcm_phy_read_rdb(phydev, BCM54140_RDB_ISR); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (irq_status == 0) + return IRQ_NONE; - ret = bcm_phy_read_rdb(phydev, BCM54140_RDB_ISR); + phy_trigger_machine(phydev); - return (ret < 0) ? 0 : ret; + return IRQ_HANDLED; } static int bcm54140_ack_intr(struct phy_device *phydev) @@ -834,8 +843,8 @@ static struct phy_driver bcm54140_drivers[] = { .flags = PHY_POLL_CABLE_TEST, .features = PHY_GBIT_FEATURES, .config_init = bcm54140_config_init, - .did_interrupt = bcm54140_did_interrupt, .ack_interrupt = bcm54140_ack_intr, + .handle_interrupt = bcm54140_handle_interrupt, .config_intr = bcm54140_config_intr, .probe = bcm54140_probe, .suspend = genphy_suspend, diff --git a/drivers/net/phy/bcm63xx.c b/drivers/net/phy/bcm63xx.c index 459fb2069c7e..818c853b6638 100644 --- a/drivers/net/phy/bcm63xx.c +++ b/drivers/net/phy/bcm63xx.c @@ -69,6 +69,7 @@ static struct phy_driver bcm63xx_driver[] = { .config_init = bcm63xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm63xx_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { /* same phy as above, with just a different OUI */ .phy_id = 0x002bdc00, @@ -79,6 +80,7 @@ static struct phy_driver bcm63xx_driver[] = { .config_init = bcm63xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm63xx_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, } }; module_phy_driver(bcm63xx_driver); diff --git a/drivers/net/phy/bcm87xx.c b/drivers/net/phy/bcm87xx.c index df360e1c5069..f20cfb05ef04 100644 --- a/drivers/net/phy/bcm87xx.c +++ b/drivers/net/phy/bcm87xx.c @@ -153,10 +153,29 @@ static int bcm87xx_config_intr(struct phy_device *phydev) return err; } -static int bcm87xx_did_interrupt(struct phy_device *phydev) +static irqreturn_t bcm87xx_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, BCM87XX_LASI_STATUS); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (irq_status == 0) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + +static int bcm87xx_ack_interrupt(struct phy_device *phydev) { int reg; + /* Reading the LASI status clears it. */ reg = phy_read(phydev, BCM87XX_LASI_STATUS); if (reg < 0) { @@ -168,13 +187,6 @@ static int bcm87xx_did_interrupt(struct phy_device *phydev) return (reg & 1) != 0; } -static int bcm87xx_ack_interrupt(struct phy_device *phydev) -{ - /* Reading the LASI status clears it. */ - bcm87xx_did_interrupt(phydev); - return 0; -} - static int bcm8706_match_phy_device(struct phy_device *phydev) { return phydev->c45_ids.device_ids[4] == PHY_ID_BCM8706; @@ -196,7 +208,7 @@ static struct phy_driver bcm87xx_driver[] = { .read_status = bcm87xx_read_status, .ack_interrupt = bcm87xx_ack_interrupt, .config_intr = bcm87xx_config_intr, - .did_interrupt = bcm87xx_did_interrupt, + .handle_interrupt = bcm87xx_handle_interrupt, .match_phy_device = bcm8706_match_phy_device, }, { .phy_id = PHY_ID_BCM8727, @@ -208,7 +220,7 @@ static struct phy_driver bcm87xx_driver[] = { .read_status = bcm87xx_read_status, .ack_interrupt = bcm87xx_ack_interrupt, .config_intr = bcm87xx_config_intr, - .did_interrupt = bcm87xx_did_interrupt, + .handle_interrupt = bcm87xx_handle_interrupt, .match_phy_device = bcm8727_match_phy_device, } }; diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index cd271de9609b..8bcdb94ef2fc 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -643,6 +643,24 @@ static int brcm_fet_config_intr(struct phy_device *phydev) return err; } +static irqreturn_t brcm_fet_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, MII_BRCM_FET_INTREG); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (irq_status == 0) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + struct bcm53xx_phy_priv { u64 *stats; }; @@ -683,6 +701,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM5421, .phy_id_mask = 0xfffffff0, @@ -691,6 +710,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM54210E, .phy_id_mask = 0xfffffff0, @@ -699,6 +719,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM5461, .phy_id_mask = 0xfffffff0, @@ -707,6 +728,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM54612E, .phy_id_mask = 0xfffffff0, @@ -715,6 +737,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM54616S, .phy_id_mask = 0xfffffff0, @@ -724,6 +747,7 @@ static struct phy_driver broadcom_drivers[] = { .config_aneg = bcm54616s_config_aneg, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, .read_status = bcm54616s_read_status, .probe = bcm54616s_probe, }, { @@ -734,6 +758,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, .suspend = genphy_suspend, .resume = genphy_resume, }, { @@ -745,6 +770,7 @@ static struct phy_driver broadcom_drivers[] = { .config_aneg = bcm5481_config_aneg, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM54810, .phy_id_mask = 0xfffffff0, @@ -754,6 +780,7 @@ static struct phy_driver broadcom_drivers[] = { .config_aneg = bcm5481_config_aneg, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, .suspend = genphy_suspend, .resume = bcm54xx_resume, }, { @@ -765,6 +792,7 @@ static struct phy_driver broadcom_drivers[] = { .config_aneg = bcm5481_config_aneg, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, .suspend = genphy_suspend, .resume = bcm54xx_resume, }, { @@ -776,6 +804,7 @@ static struct phy_driver broadcom_drivers[] = { .read_status = bcm5482_read_status, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM50610, .phy_id_mask = 0xfffffff0, @@ -784,6 +813,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM50610M, .phy_id_mask = 0xfffffff0, @@ -792,6 +822,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM57780, .phy_id_mask = 0xfffffff0, @@ -800,6 +831,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCMAC131, .phy_id_mask = 0xfffffff0, @@ -808,6 +840,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = brcm_fet_config_init, .ack_interrupt = brcm_fet_ack_interrupt, .config_intr = brcm_fet_config_intr, + .handle_interrupt = brcm_fet_handle_interrupt, }, { .phy_id = PHY_ID_BCM5241, .phy_id_mask = 0xfffffff0, @@ -816,6 +849,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = brcm_fet_config_init, .ack_interrupt = brcm_fet_ack_interrupt, .config_intr = brcm_fet_config_intr, + .handle_interrupt = brcm_fet_handle_interrupt, }, { .phy_id = PHY_ID_BCM5395, .phy_id_mask = 0xfffffff0, @@ -839,6 +873,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, }, { .phy_id = PHY_ID_BCM89610, .phy_id_mask = 0xfffffff0, @@ -847,6 +882,7 @@ static struct phy_driver broadcom_drivers[] = { .config_init = bcm54xx_config_init, .ack_interrupt = bcm_phy_ack_intr, .config_intr = bcm_phy_config_intr, + .handle_interrupt = bcm_phy_handle_interrupt, } }; module_phy_driver(broadcom_drivers);