netdev - [RFC v2 4/6] cxgb4: use async probe

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Date:	Thu,  4 Sep 2014 23:37:25 -0700
From:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
To:	gregkh@...uxfoundation.org, dmitry.torokhov@...il.com,
	falcon@...zu.com, tiwai@...e.de, tj@...nel.org,
	arjan@...ux.intel.com
Cc:	linux-kernel@...r.kernel.org, oleg@...hat.com, hare@...e.com,
	akpm@...ux-foundation.org, penguin-kernel@...ove.sakura.ne.jp,
	joseph.salisbury@...onical.com, bpoirier@...e.de,
	santosh@...lsio.com, "Luis R. Rodriguez" <mcgrof@...e.com>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Tim Gardner <tim.gardner@...onical.com>,
	Pierre Fersing <pierre-fersing@...rref.org>,
	Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>,
	Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>,
	Sreekanth Reddy <sreekanth.reddy@...gotech.com>,
	Abhijit Mahajan <abhijit.mahajan@...gotech.com>,
	Hariprasad S <hariprasad@...lsio.com>,
	Casey Leedom <leedom@...lsio.com>,
	MPT-FusionLinux.pdl@...gotech.com, linux-scsi@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [RFC v2 4/6] cxgb4: use async probe

From: "Luis R. Rodriguez" <mcgrof@...e.com>

cxgb4 probe can take up to over 1 minute when the firmware is
is written and installed on the device, even after this the device
driver still does some device probing and can take quite a bit.
systemd will kill this driver when probe does take over 30 seconds,
use the asynch probe mechanism to circumvent this.

Cc: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc: Joseph Salisbury <joseph.salisbury@...onical.com>
Cc: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
Cc: Tim Gardner <tim.gardner@...onical.com>
Cc: Pierre Fersing <pierre-fersing@...rref.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Benjamin Poirier <bpoirier@...e.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>
Cc: Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>
Cc: Sreekanth Reddy <sreekanth.reddy@...gotech.com>
Cc: Abhijit Mahajan <abhijit.mahajan@...gotech.com>
Cc: Hariprasad S <hariprasad@...lsio.com>
Cc: Santosh Rastapur <santosh@...lsio.com>
Cc: Casey Leedom <leedom@...lsio.com>
Cc: MPT-FusionLinux.pdl@...gotech.com
Cc: linux-scsi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@...e.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 18fb9c6..5f7d24a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -6794,6 +6794,7 @@ static struct pci_driver cxgb4_driver = {
 	.remove   = remove_one,
 	.shutdown = remove_one,
 	.err_handler = &cxgb4_eeh,
+	.driver.async_probe = true,
 };
 
 static int __init cxgb4_init_module(void)
-- 
2.0.3

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