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From: Shijith Thotton <shijith.thotton@caviumnetworks.com>
To: "Yang, Qiming" <qiming.yang@intel.com>,
	Gregory Etelson <gregory@weka.io>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	Jianfeng Tan <jianfeng.tan@intel.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>
Subject: Re: [dpdk-dev] vf init issue with patch igb_uio: issue FLR during open and release of device file
Date: Wed, 13 Sep 2017 16:18:41 +0530	[thread overview]
Message-ID: <20170913104840.GA14229@localhost.localdomain> (raw)
In-Reply-To: <F5DF4F0E3AFEF648ADC1C3C33AD4DBF16F7E0E71@SHSMSX101.ccr.corp.intel.com>

On Wed, Sep 13, 2017 at 07:51:30AM +0000, Yang, Qiming wrote:
>    Hi, Shijith
> 
>     
> 
>    VF init error will happen after apply your patch, error log as below. If
>    revert your commit, all things work well. And this issue is not only occur
>    in i40 VF but also ixgbe.
> 
>    Could you help to check it soon?
> 
>     
> 
>    [root@localhost app]# ./testpmd -c 7 -n 4 -- -i
> 
>    EAL: Detected 10 lcore(s)
> 
>    EAL: No free hugepages reported in hugepages-1048576kB
> 
>    EAL: Probing VFIO support...
> 
>    EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
>    unreliable clock cycles !
> 
>    EAL: PCI device 0000:00:03.0 on NUMA socket -1
> 
>    EAL:   Invalid NUMA socket, default to 0
> 
>    EAL:   probe driver: 8086:154c net_i40e_vf
> 
>    i40evf_init_vf(): init_adminq failed: -53
> 
>    i40evf_dev_init(): Init vf failed
> 
>    EAL: Requested device 0000:00:03.0 cannot be used
> 
>     
> 
>    commit b58eedfc7dd57eef6d12e2c654a52c834f36084a
>    Author: Shijith Thotton <shijith.thotton@caviumnetworks.com>
>    Date: Fri Jul 7 16:43:51 2017 +0530
> 
>    igb_uio: issue FLR during open and release of device file
> 
>    Set UIO info device file operations open and release. Call pci reset
>    function inside open and release to clear device state at start and end.
>    Copied this behaviour from vfio_pci kernel module code. With this patch,
>    it is not mandatory to issue FLR by PMD's during init and close.
> 
>    Bus master enable and disable are added in open and release respectively
>    to take care of device DMA.
> 
>    Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
>    Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
>    Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
>    Acked-by: Gregory Etelson <gregory@weka.io>
> 
>     
> 
>    Best Regard,
> 
>    Yang Qiming
> 
>     

Hi Yang Qiming,

We didn't face this issue while preparing patch. I think, Gregory tested
it for Intel NICs. Adding more people to the loop for help.

Shijith

  reply	other threads:[~2017-09-13 10:49 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-13  7:51 Yang, Qiming
2017-09-13 10:48 ` Shijith Thotton [this message]
2017-09-13 11:03   ` Ferruh Yigit
2017-09-13 14:25     ` Hu, Xuekun
2017-09-13 17:06       ` Ferruh Yigit
2017-09-13 19:44         ` Patil, Harish
2017-09-15  8:04           ` Yang, Qiming
2017-09-15  8:42             ` Thomas Monjalon
2017-09-15  9:18               ` Yang, Qiming
2017-09-15  9:25                 ` Ferruh Yigit
2017-09-15  9:31                 ` Shijith Thotton
2017-09-17  2:49             ` Gregory Etelson
2017-09-18  2:21               ` Yang, Qiming
2017-09-18  2:39                 ` Zhang, Helin
2017-09-18  3:50                   ` Yang, Qiming
2017-09-18  6:49                     ` Shijith Thotton
2017-09-18 19:33                       ` Ferruh Yigit
2017-09-18 22:43                       ` Patil, Harish
2017-09-14  3:16         ` Yang, Qiming
2017-09-14  7:00           ` Shijith Thotton
2017-09-14  7:15             ` Shijith Thotton
2017-09-14  1:23   ` Yang, Qiming
2017-09-19 10:24 ` [dpdk-dev] [PATCH] igb_uio: remove PCI reset during uio device open Shijith Thotton
2017-09-20 16:52   ` Ferruh Yigit
2017-09-21 10:00   ` Luca Boccassi
2017-09-22  2:47   ` Yang, Qiming
2017-09-29 12:57   ` Wu, Jingjing
2017-10-02 18:24     ` Shijith Thotton
2017-10-03 11:35       ` Gregory Etelson
2017-10-13 14:36         ` Shijith Thotton
2017-10-13 14:51 ` [dpdk-dev] [PATCH] igb_uio: revert open and release operations Thomas Monjalon
2017-10-13 21:05   ` Ferruh Yigit
2017-10-13 21:11     ` Thomas Monjalon
2017-10-13 21:17       ` Thomas Monjalon

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