From patchwork Thu Jan 19 13:29:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 9525735 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D87D36020B for ; Thu, 19 Jan 2017 13:33:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C89DC27B2F for ; Thu, 19 Jan 2017 13:33:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BCA4327FBE; Thu, 19 Jan 2017 13:33:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_SORBS_SPAM, RDNS_NONE, T_DKIM_INVALID autolearn=no version=3.3.1 Received: from bombadil.infradead.org (unknown [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7A22F27B2F for ; Thu, 19 Jan 2017 13:33:52 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cUCqc-0004ZD-2Z; Thu, 19 Jan 2017 13:33:50 +0000 Received: from mail-wm0-f50.google.com ([74.125.82.50]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cUCoG-0000hS-2o for linux-arm-kernel@lists.infradead.org; Thu, 19 Jan 2017 13:31:32 +0000 Received: by mail-wm0-f50.google.com with SMTP id r144so77150458wme.1 for ; Thu, 19 Jan 2017 05:31:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=M2Mt1IUY+9KqnX3iZFJkMS6FZ88o8pZIMUf0LimNJkU=; b=RtafMm0I/Vhiw+UxmxkvocAJHXNoDxzrqah3oNXi97WoTAchm2SgVOZL8tjroNUYik JZtjQxT598YWBE8+5jCpzCCU0RwlT8Ghp6NZyWVk/n7O4FHryzF3o6TxGB3AMwbYKxRZ vVx8Trc3cgKUD+LuXV9DF/LPwJQ6U328lAD71ghezH5e+Wn3mzRVEi1NyMbihp3qPMys lWW2To+8qOh37l69Qihl4CJ/UmrGDtIG3ffOX4HHLm6D4WfvyeowX7/wSXfC4sb5J0fp GUvHDixBAhT+hJoFhyWvAHOu/M/CNMbszjW6LS4caA0jbNUJGP/laucX0csRiV4d5aBW 81sQ== 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; bh=M2Mt1IUY+9KqnX3iZFJkMS6FZ88o8pZIMUf0LimNJkU=; b=uHSfsIEH96nptshy5MdFB8mXMiVW8zg6eWSDn6uSiXvKa3xNp9nfmEidBRFZqByB0k VMAi/xhDzjpLEG7CCI3L8WsexCSKj5CIw8GDd0ILztrIyGNzdW3v2Y+1g7YhrstySHEK xKbBeKWMNCRDi0IhU2UyAPrGRV8POCoGTrJac/if9JQex1IwHXQI3OxSbEK+rCwWRJv0 JpyXTA3Jgj7m4VSQdXxgcAJuUw/LEOpnscI6pDa3HqOwjvUzKQYKaa7Pgc54Qq8ZoyDG zWZ+BmnamaRFuWWwbeEwaMlHPsEgSfeEYt7jFgE1ElA5fcCgiQ0U4umPDqGfDDPsLIGY Eqgg== X-Gm-Message-State: AIkVDXLwk2FdHRHLFxbV0PyVAQ70rLNDe9sjbgpNMMfjjazvajLNufYMBpzGeMlMdwumeiRw X-Received: by 10.223.173.183 with SMTP id w52mr9057537wrc.164.1484832604658; Thu, 19 Jan 2017 05:30:04 -0800 (PST) Received: from localhost.localdomain ([90.63.244.31]) by smtp.gmail.com with ESMTPSA id c202sm53251996wmd.10.2017.01.19.05.30.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 19 Jan 2017 05:30:04 -0800 (PST) From: Bartosz Golaszewski To: Kevin Hilman , Sekhar Nori , Patrick Titiano , Michael Turquette , Tejun Heo , Rob Herring , Mark Rutland , Russell King , David Lechner Subject: [PATCH v4 09/14] sata: ahci: export ahci_do_hardreset() locally Date: Thu, 19 Jan 2017 14:29:43 +0100 Message-Id: <1484832588-18413-10-git-send-email-bgolaszewski@baylibre.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1484832588-18413-1-git-send-email-bgolaszewski@baylibre.com> References: <1484832588-18413-1-git-send-email-bgolaszewski@baylibre.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170119_053124_572054_8B619ED3 X-CRM114-Status: GOOD ( 15.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ide@vger.kernel.org, Bartosz Golaszewski , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP We need a way to retrieve the information about the online state of the link in the ahci-da850 driver. Create a new function: ahci_do_hardreset() which is called from ahci_hardreset() for backwards compatibility, but has an additional argument: 'online' - which can be used to check if the link is online after this function returns. The new routine will be used in the ahci-da850 driver to avoid code duplication when implementing a workaround for tha da850 SATA controller quirk/instability. Signed-off-by: Bartosz Golaszewski --- drivers/ata/ahci.h | 3 +++ drivers/ata/libahci.c | 18 +++++++++++++----- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 0cc08f8..5db6ab2 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -398,6 +398,9 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class, int pmp, unsigned long deadline, int (*check_ready)(struct ata_link *link)); +int ahci_do_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline, bool *online); + unsigned int ahci_qc_issue(struct ata_queued_cmd *qc); int ahci_stop_engine(struct ata_port *ap); void ahci_start_fis_rx(struct ata_port *ap); diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index ee7db31..3159f9e 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1519,8 +1519,8 @@ static int ahci_pmp_retry_softreset(struct ata_link *link, unsigned int *class, return rc; } -static int ahci_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline) +int ahci_do_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline, bool *online) { const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context); struct ata_port *ap = link->ap; @@ -1528,7 +1528,6 @@ static int ahci_hardreset(struct ata_link *link, unsigned int *class, struct ahci_host_priv *hpriv = ap->host->private_data; u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; struct ata_taskfile tf; - bool online; int rc; DPRINTK("ENTER\n"); @@ -1540,17 +1539,26 @@ static int ahci_hardreset(struct ata_link *link, unsigned int *class, tf.command = ATA_BUSY; ata_tf_to_fis(&tf, 0, 0, d2h_fis); - rc = sata_link_hardreset(link, timing, deadline, &online, + rc = sata_link_hardreset(link, timing, deadline, online, ahci_check_ready); hpriv->start_engine(ap); - if (online) + if (*online) *class = ahci_dev_classify(ap); DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); return rc; } +EXPORT_SYMBOL_GPL(ahci_do_hardreset); + +static int ahci_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline) +{ + bool online; + + return ahci_do_hardreset(link, class, deadline, &online); +} static void ahci_postreset(struct ata_link *link, unsigned int *class) {