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From: Luis Chamberlain <mcgrof@kernel•org>
To: jeyu@kernel•org, davem@davemloft•net, kuba@kernel•org
Cc: michael.chan@broadcom•com, dchickles@marvell•com,
	sburla@marvell•com, fmanlunas@marvell•com, aelior@marvell•com,
	GR-everest-linux-l2@marvell•com, kvalo@codeaurora•org,
	johannes@sipsolutions•net, akpm@linux-foundation•org,
	arnd@arndb•de, rostedt@goodmis•org, mingo@redhat•com,
	aquini@redhat•com, cai@lca•pw, dyoung@redhat•com, bhe@redhat•com,
	peterz@infradead•org, tglx@linutronix•de, gpiccoli@canonical•com,
	pmladek@suse•com, tiwai@suse•de, schlad@suse•de,
	andriy.shevchenko@linux•intel.com, derosier@gmail•com,
	keescook@chromium•org, daniel.vetter@ffwll•ch, will@kernel•org,
	mchehab+samsung@kernel•org, vkoul@kernel•org,
	mchehab+huawei@kernel•org, robh@kernel•org, mhiramat@kernel•org,
	sfr@canb•auug.org.au, linux@dominikbrodowski•net,
	glider@google•com, paulmck@kernel•org, elver@google•com,
	bauerman@linux•ibm.com, yamada.masahiro@socionext•com,
	samitolvanen@google•com, yzaikin@google•com, dvyukov@google•com,
	rdunlap@infradead•org, corbet@lwn•net, dianders@chromium•org,
	netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
	linux-doc@vger•kernel.org, Luis Chamberlain <mcgrof@kernel•org>,
	Igor Russkikh <irusskikh@marvell•com>
Subject: [PATCH v3 8/8] qed: use new taint_firmware_crashed()
Date: Tue, 26 May 2020 14:58:15 +0000	[thread overview]
Message-ID: <20200526145815.6415-9-mcgrof@kernel.org> (raw)
In-Reply-To: <20200526145815.6415-1-mcgrof@kernel.org>

This makes use of the new taint_firmware_crashed() to help
annotate when firmware for device drivers crash. When firmware
crashes devices can sometimes become unresponsive, and recovery
sometimes requires a driver unload / reload and in the worst cases
a reboot.

Using a taint flag allows us to annotate when this happens clearly.

Cc: Ariel Elior <aelior@marvell•com>
Cc: GR-everest-linux-l2@marvell•com
Reviewed-by: Igor Russkikh <irusskikh@marvell•com>
Acked-by: Rafael Aquini <aquini@redhat•com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel•org>
---
 drivers/net/ethernet/qlogic/qed/qed_mcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index 9624616806e7..dd4357b0b5d1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -566,6 +566,7 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
 		DP_NOTICE(p_hwfn,
 			  "The MFW failed to respond to command 0x%08x [param 0x%08x].\n",
 			  p_mb_params->cmd, p_mb_params->param);
+		taint_firmware_crashed();
 		qed_mcp_print_cpu_info(p_hwfn, p_ptt);
 
 		spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
-- 
2.26.2


  parent reply	other threads:[~2020-05-26 15:07 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-26 14:58 [PATCH v3 0/8] kernel: taint when the driver firmware crashes Luis Chamberlain
2020-05-26 14:58 ` [PATCH v3 1/8] kernel.h: move taint and system state flags to uapi Luis Chamberlain
2020-05-26 14:58 ` [PATCH v3 2/8] panic: add uevent support Luis Chamberlain
2020-05-26 14:58 ` [PATCH v3 3/8] taint: add firmware crash taint support Luis Chamberlain
2020-05-26 14:58 ` [PATCH v3 4/8] panic: make taint data type clearer Luis Chamberlain
2020-05-26 14:58 ` [PATCH v3 5/8] ath10k: use new taint_firmware_crashed() Luis Chamberlain
2020-06-02 21:01   ` Brian Norris
2020-05-26 14:58 ` [PATCH v3 6/8] bnxt_en: " Luis Chamberlain
2020-05-26 18:09   ` Michael Chan
2020-05-26 14:58 ` [PATCH v3 7/8] liquidio: " Luis Chamberlain
2020-05-26 14:58 ` Luis Chamberlain [this message]
2020-05-26 22:46 ` [PATCH v3 0/8] kernel: taint when the driver firmware crashes Jakub Kicinski
2020-05-26 23:07   ` Luis Chamberlain
2020-05-26 23:30     ` Jakub Kicinski
2020-05-27  3:19       ` Luis Chamberlain
2020-05-27 21:36         ` Jakub Kicinski
2020-05-28 14:27           ` Luis Chamberlain
2020-05-28 15:04             ` Ben Greear
2020-05-28 16:33               ` Luis Chamberlain

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