From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 478837F7D7; Tue, 16 Jan 2024 19:51:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705434714; cv=none; b=uZBN5qly3+FbbTu3RLlIr7zEfYAUd4e/Bd9hnvDZINp6MQ3CIJtMvzoWNcnxHDNMPOzyVEAaq6oDNYL7JDfdZ6LT+tAbGqJTPPaAHjrTUcbt8ATO6JkJPo9N4Lj5WT4EmvMPxUlcaLZUQWw0bjAJXQGjDBAENTBgAxOqI4dVL8E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705434714; c=relaxed/simple; bh=7YXe3ADN7fnF7Ev541THmz4uS1qnlQIWpTKvm5bZzJk=; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version:X-stable: X-Patchwork-Hint:X-stable-base:Content-Transfer-Encoding; b=imyAhaO+Bl/KPxQ94MFp2Dp/IXZf5PTC3QXRcRunxOp0+F+n9+Bizo3HqAmbcl8mwoRmeZWgYU9dPztP2l4TBcT7QhIYv2KRJBisZO3UmJ0E0UyO/RCjGKcetTrkyfXyQ+tEM7Ou3RTz3BynqSmE4bmvavpHlm4wbxNjaTrX4JY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u3FUSeol; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u3FUSeol" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66378C433F1; Tue, 16 Jan 2024 19:51:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705434714; bh=7YXe3ADN7fnF7Ev541THmz4uS1qnlQIWpTKvm5bZzJk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u3FUSeolw0xIsjlSNQWwp91iWjnR5CricSB0hUEoZTlmBg1xR10uv+16cYYKb7jzI cdEA2PVvr93UqO++li6bj6rXuap8TfbEZdHdbCIF14qczYTpmJAly1JVkMR02VPj5Y C/7Osm99wq95Fi3UCpa0LvTjT9+BJziPuWdiWLdZrzum4C5gZ7TGVuMJSW/3fXJ0lu 3MhjayOGaZQmq9IDAft3gsm293SrQHeA2+d/S5zVwgOBeTW59ZSoqTFtJig+E1POcI 1QmzC4oJvnqxMzvVdyvK+Gd3e4rh0WHT5hG2K9BPdY6k0GZAyLwwE5IOXnY3luLGLG 4EqjALnS340RA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Shannon Nelson , Brett Creeley , "David S . Miller" , Sasha Levin , drivers@pensando.io, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, florian.fainelli@broadcom.com, allen.hubbe@amd.com, drc@linux.vnet.ibm.com, yuehaibing@huawei.com, leon@kernel.org, justinstitt@google.com, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 6.6 060/104] ionic: pass opcode to devcmd_wait Date: Tue, 16 Jan 2024 14:46:26 -0500 Message-ID: <20240116194908.253437-60-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240116194908.253437-1-sashal@kernel.org> References: <20240116194908.253437-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.12 Content-Transfer-Encoding: 8bit From: Shannon Nelson [ Upstream commit 24f110240c03c6b5368f1203bac72883d511e606 ] Don't rely on the PCI memory for the devcmd opcode because we read a 0xff value if the PCI bus is broken, which can cause us to report a bogus dev_cmd opcode later. Signed-off-by: Shannon Nelson Reviewed-by: Brett Creeley Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/pensando/ionic/ionic_dev.c | 1 + drivers/net/ethernet/pensando/ionic/ionic_dev.h | 1 + drivers/net/ethernet/pensando/ionic/ionic_main.c | 2 +- 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c index c06576f43916..22ab0a44fa8c 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c @@ -321,6 +321,7 @@ void ionic_dev_cmd_comp(struct ionic_dev *idev, union ionic_dev_cmd_comp *comp) void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd) { + idev->opcode = cmd->cmd.opcode; memcpy_toio(&idev->dev_cmd_regs->cmd, cmd, sizeof(*cmd)); iowrite32(0, &idev->dev_cmd_regs->done); iowrite32(1, &idev->dev_cmd_regs->doorbell); diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h index bd2d4a26f543..23f9d3b8029a 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h @@ -152,6 +152,7 @@ struct ionic_dev { bool fw_hb_ready; bool fw_status_ready; u8 fw_generation; + u8 opcode; u64 __iomem *db_pages; dma_addr_t phy_db_pages; diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c index 1dc79cecc5cc..baa865af49ad 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_main.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c @@ -465,7 +465,7 @@ static int __ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds, */ max_wait = jiffies + (max_seconds * HZ); try_again: - opcode = readb(&idev->dev_cmd_regs->cmd.cmd.opcode); + opcode = idev->opcode; start_time = jiffies; for (fw_up = ionic_is_fw_running(idev); !done && fw_up && time_before(jiffies, max_wait); -- 2.43.0