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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Thomas Monjalon <thomas@monjalon.net>,
	dev@dpdk.org, stable@dpdk.org,
	Jianfeng Tan <jianfeng.tan@intel.com>,
	Jingjing Wu <jingjing.wu@intel.com>,
	Shijith Thotton <shijith.thotton@caviumnetworks.com>,
	Gregory Etelson <gregory@weka.io>,
	Harish Patil <harish.patil@cavium.com>,
	George Prekas <george.prekas@epfl.ch>,
	Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Subject: [dpdk-dev] [PATCH] igb_uio: remove device reset in open
Date: Fri, 20 Oct 2017 17:55:11 +0100	[thread overview]
Message-ID: <20171020165511.47899-1-ferruh.yigit@intel.com> (raw)
In-Reply-To: <efabcaad-b0e9-e360-22b5-953b0bc20032@intel.com>

Remove device reset during application start, the reset for application
exit still there.

Reset in open removed because of following comments:
1- Device reset not completed when VF driver loaded, which cause VF PMD
   initialization error.
   Adding delay can solve the issue but will increase driver load time.

2- Reset will be issues all devices unconditionally, not very efficient
   way.

Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
Cc: Jianfeng Tan <jianfeng.tan@intel.com>
Cc: Jingjing Wu <jingjing.wu@intel.com>
Cc: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Cc: Gregory Etelson <gregory@weka.io>
Cc: Harish Patil <harish.patil@cavium.com>
Cc: George Prekas <george.prekas@epfl.ch>
Cc: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
---
 lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
index f7ef82554..fd320d87d 100644
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -336,8 +336,6 @@ igbuio_pci_open(struct uio_info *info, struct inode *inode)
 	struct pci_dev *dev = udev->pdev;
 	int err;
 
-	pci_reset_function(dev);
-
 	/* set bus master, which was cleared by the reset function */
 	pci_set_master(dev);
 
-- 
2.13.6

  reply	other threads:[~2017-10-20 16:55 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-17 20:14 [dpdk-dev] [PATCH] igb_uio: revert open and release operations Ferruh Yigit
2017-10-17 20:33 ` Thomas Monjalon
2017-10-18  4:50   ` Patil, Harish
2017-10-19 22:43     ` Patil, Harish
2017-10-20  1:15       ` Ferruh Yigit
2017-10-20 15:26         ` Tan, Jianfeng
2017-10-20 16:32           ` Ferruh Yigit
2017-10-20 16:55             ` Ferruh Yigit [this message]
2017-10-20 16:57               ` [dpdk-dev] [PATCH] igb_uio: remove device reset in open Ferruh Yigit
2017-10-20 19:01                 ` Gregory Etelson
2017-10-20 22:18                 ` Patil, Harish
2017-10-23 12:28                 ` Shijith Thotton
2017-10-23 16:36                   ` Ferruh Yigit
2017-10-23 19:03                     ` Shijith Thotton
2017-10-25 23:43                 ` Mody, Rasesh
2017-10-26  9:28                   ` Tan, Jianfeng
2017-10-27  0:49                     ` Ferruh Yigit
2017-11-01  6:58                       ` Mody, Rasesh
2017-11-01 14:12                         ` Stephen Hemminger
2017-11-02  8:03                           ` Mody, Rasesh
2017-11-02  8:55                             ` Ferruh Yigit
2017-11-02 17:34                               ` Mody, Rasesh
2017-11-02 18:09                                 ` Ferruh Yigit
2017-11-02 18:45                                   ` Mody, Rasesh
2017-11-03  0:31                                     ` Ferruh Yigit
2017-11-03 19:18                                       ` Mody, Rasesh
2017-11-03 19:24                                         ` Thomas Monjalon
2017-11-03 22:20                                           ` Ferruh Yigit
2017-11-03 22:39                                             ` Ferruh Yigit
2017-10-24 21:38               ` Ferruh Yigit
2017-10-18  0:14 ` [dpdk-dev] [PATCH] igb_uio: revert open and release operations Wu, Jingjing
2017-10-18  6:27 ` Shijith Thotton
2017-10-18 20:47   ` Ferruh Yigit
2017-10-24 21:32 ` Ferruh Yigit
2017-10-22 16:06 [dpdk-dev] [PATCH] igb_uio: remove device reset in open Patil, Harish

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