[dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Jianfeng Tan]

API rte_eth_dev_info_get() fills driver name according to drv_name
of rte_eth_dev_data. But we have not fill such info in virtio_user.

We do not use the same one with virtio device as some applications
might depend on driver name to differetiate kinds of devices, such
as VPP.

Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
CC: stable@dpdk.org

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
---
 drivers/net/virtio/virtio_user_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index c877968..110f6a9 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
 	hw->use_simple_rxtx = 0;
 	hw->virtio_user_dev = dev;
 	data->dev_private = hw;
+	data->drv_name = "virtio_user PMD";
 	data->numa_node = SOCKET_ID_ANY;
 	data->kdrv = RTE_KDRV_NONE;
 	data->dev_flags = RTE_ETH_DEV_DETACHABLE;
-- 
2.7.4

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Ferruh Yigit]

On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
> API rte_eth_dev_info_get() fills driver name according to drv_name
> of rte_eth_dev_data. But we have not fill such info in virtio_user.
> 
> We do not use the same one with virtio device as some applications
> might depend on driver name to differetiate kinds of devices, such
> as VPP.
> 
> Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
> CC: stable@dpdk.org
> 
> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> ---
>  drivers/net/virtio/virtio_user_ethdev.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
> index c877968..110f6a9 100644
> --- a/drivers/net/virtio/virtio_user_ethdev.c
> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
>  	hw->use_simple_rxtx = 0;
>  	hw->virtio_user_dev = dev;
>  	data->dev_private = hw;
> +	data->drv_name = "virtio_user PMD";

How driver naming done changed in next-net.
Please check any other virtual driver in next-net for sample.

>  	data->numa_node = SOCKET_ID_ANY;
>  	data->kdrv = RTE_KDRV_NONE;
>  	data->dev_flags = RTE_ETH_DEV_DETACHABLE;
> 

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Tan, Jianfeng]

Hi Ferruh,

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Wednesday, January 18, 2017 7:53 PM
> To: Tan, Jianfeng; dev@dpdk.org
> Cc: Liu, Yuanhan; stable@dpdk.org
> Subject: Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name
> 
> On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
> > API rte_eth_dev_info_get() fills driver name according to drv_name
> > of rte_eth_dev_data. But we have not fill such info in virtio_user.
> >
> > We do not use the same one with virtio device as some applications
> > might depend on driver name to differetiate kinds of devices, such
> > as VPP.
> >
> > Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
> > CC: stable@dpdk.org
> >
> > Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> > ---
> >  drivers/net/virtio/virtio_user_ethdev.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/net/virtio/virtio_user_ethdev.c
> b/drivers/net/virtio/virtio_user_ethdev.c
> > index c877968..110f6a9 100644
> > --- a/drivers/net/virtio/virtio_user_ethdev.c
> > +++ b/drivers/net/virtio/virtio_user_ethdev.c
> > @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
> >  	hw->use_simple_rxtx = 0;
> >  	hw->virtio_user_dev = dev;
> >  	data->dev_private = hw;
> > +	data->drv_name = "virtio_user PMD";
> 
> How driver naming done changed in next-net.
> Please check any other virtual driver in next-net for sample.

Thank you for the info. And it seems that it's already fixed by that patch.

Self NACK.

Thanks,
Jianfeng

> 
> >  	data->numa_node = SOCKET_ID_ANY;
> >  	data->kdrv = RTE_KDRV_NONE;
> >  	data->dev_flags = RTE_ETH_DEV_DETACHABLE;
> >

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Ferruh Yigit]

On 1/18/2017 1:49 PM, Tan, Jianfeng wrote:
> Hi Ferruh,
> 
>> -----Original Message-----
>> From: Yigit, Ferruh
>> Sent: Wednesday, January 18, 2017 7:53 PM
>> To: Tan, Jianfeng; dev@dpdk.org
>> Cc: Liu, Yuanhan; stable@dpdk.org
>> Subject: Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name
>>
>> On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
>>> API rte_eth_dev_info_get() fills driver name according to drv_name
>>> of rte_eth_dev_data. But we have not fill such info in virtio_user.
>>>
>>> We do not use the same one with virtio device as some applications
>>> might depend on driver name to differetiate kinds of devices, such
>>> as VPP.
>>>
>>> Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
>>> CC: stable@dpdk.org
>>>
>>> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
>>> ---
>>>  drivers/net/virtio/virtio_user_ethdev.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/net/virtio/virtio_user_ethdev.c
>> b/drivers/net/virtio/virtio_user_ethdev.c
>>> index c877968..110f6a9 100644
>>> --- a/drivers/net/virtio/virtio_user_ethdev.c
>>> +++ b/drivers/net/virtio/virtio_user_ethdev.c
>>> @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
>>>  	hw->use_simple_rxtx = 0;
>>>  	hw->virtio_user_dev = dev;
>>>  	data->dev_private = hw;
>>> +	data->drv_name = "virtio_user PMD";
>>
>> How driver naming done changed in next-net.
>> Please check any other virtual driver in next-net for sample.
> 
> Thank you for the info. And it seems that it's already fixed by that patch.

That patch modified during merge, can you please confirm the latest
version in the repo?

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Tan, Jianfeng]

Hi Ferruh,

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Wednesday, January 18, 2017 11:55 PM
> To: Tan, Jianfeng; dev@dpdk.org
> Cc: Liu, Yuanhan; stable@dpdk.org
> Subject: Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name
> 
> On 1/18/2017 1:49 PM, Tan, Jianfeng wrote:
> > Hi Ferruh,
> >
> >> -----Original Message-----
> >> From: Yigit, Ferruh
> >> Sent: Wednesday, January 18, 2017 7:53 PM
> >> To: Tan, Jianfeng; dev@dpdk.org
> >> Cc: Liu, Yuanhan; stable@dpdk.org
> >> Subject: Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver
> name
> >>
> >> On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
> >>> API rte_eth_dev_info_get() fills driver name according to drv_name
> >>> of rte_eth_dev_data. But we have not fill such info in virtio_user.
> >>>
> >>> We do not use the same one with virtio device as some applications
> >>> might depend on driver name to differetiate kinds of devices, such
> >>> as VPP.
> >>>
> >>> Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
> >>> CC: stable@dpdk.org
> >>>
> >>> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> >>> ---
> >>>  drivers/net/virtio/virtio_user_ethdev.c | 1 +
> >>>  1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/drivers/net/virtio/virtio_user_ethdev.c
> >> b/drivers/net/virtio/virtio_user_ethdev.c
> >>> index c877968..110f6a9 100644
> >>> --- a/drivers/net/virtio/virtio_user_ethdev.c
> >>> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> >>> @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
> >>>  	hw->use_simple_rxtx = 0;
> >>>  	hw->virtio_user_dev = dev;
> >>>  	data->dev_private = hw;
> >>> +	data->drv_name = "virtio_user PMD";
> >>
> >> How driver naming done changed in next-net.
> >> Please check any other virtual driver in next-net for sample.
> >
> > Thank you for the info. And it seems that it's already fixed by that patch.
> 
> That patch modified during merge, can you please confirm the latest
> version in the repo?

Just checked latest master repo, this problem has been fixed by commit 73db5badb04 ("net: align ethdev and eal driver names"). Thanks to David Marchand.

Yuanhan, do you think this patch can be applied to the stable repo?

Thanks,
Jianfeng

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Yuanhan Liu]

On Thu, Jan 19, 2017 at 09:16:58AM +0800, Tan, Jianfeng wrote:
> > >> On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
> > >>> API rte_eth_dev_info_get() fills driver name according to drv_name
> > >>> of rte_eth_dev_data. But we have not fill such info in virtio_user.
> > >>>
> > >>> We do not use the same one with virtio device as some applications
> > >>> might depend on driver name to differetiate kinds of devices, such
> > >>> as VPP.
> > >>>
> > >>> Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
> > >>> CC: stable@dpdk.org
> > >>>
> > >>> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> > >>> ---
> > >>>  drivers/net/virtio/virtio_user_ethdev.c | 1 +
> > >>>  1 file changed, 1 insertion(+)
> > >>>
> > >>> diff --git a/drivers/net/virtio/virtio_user_ethdev.c
> > >> b/drivers/net/virtio/virtio_user_ethdev.c
> > >>> index c877968..110f6a9 100644
> > >>> --- a/drivers/net/virtio/virtio_user_ethdev.c
> > >>> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> > >>> @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
> > >>>  	hw->use_simple_rxtx = 0;
> > >>>  	hw->virtio_user_dev = dev;
> > >>>  	data->dev_private = hw;
> > >>> +	data->drv_name = "virtio_user PMD";
> > >>
> > >> How driver naming done changed in next-net.
> > >> Please check any other virtual driver in next-net for sample.
> > >
> > > Thank you for the info. And it seems that it's already fixed by that patch.
> > 
> > That patch modified during merge, can you please confirm the latest
> > version in the repo?
> 
> Just checked latest master repo, this problem has been fixed by commit 73db5badb04 ("net: align ethdev and eal driver names"). Thanks to David Marchand.
> 
> Yuanhan, do you think this patch can be applied to the stable repo?

I think I would partially backport that commit to a stable release: just
pick the virtio changes, with a brand new commit log, stating the issue
need to be fixed and it's a partial backport from 73db5badb04 ("net: align
ethdev and eal driver names").

Okay to you?

	--yliu

Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name

[Tan, Jianfeng]

> -----Original Message-----
> From: Yuanhan Liu [mailto:yuanhan.liu@linux.intel.com]
> Sent: Thursday, January 19, 2017 4:16 PM
> To: Tan, Jianfeng
> Cc: Yigit, Ferruh; dev@dpdk.org; stable@dpdk.org
> Subject: Re: [dpdk-stable] [PATCH] net/virtio-user: fix missing driver name
> 
> On Thu, Jan 19, 2017 at 09:16:58AM +0800, Tan, Jianfeng wrote:
> > > >> On 1/18/2017 11:44 AM, Jianfeng Tan wrote:
> > > >>> API rte_eth_dev_info_get() fills driver name according to drv_name
> > > >>> of rte_eth_dev_data. But we have not fill such info in virtio_user.
> > > >>>
> > > >>> We do not use the same one with virtio device as some applications
> > > >>> might depend on driver name to differetiate kinds of devices, such
> > > >>> as VPP.
> > > >>>
> > > >>> Fixes: e9efa4d93821 ("net/virtio-user: add new virtual PCI driver")
> > > >>> CC: stable@dpdk.org
> > > >>>
> > > >>> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> > > >>> ---
> > > >>>  drivers/net/virtio/virtio_user_ethdev.c | 1 +
> > > >>>  1 file changed, 1 insertion(+)
> > > >>>
> > > >>> diff --git a/drivers/net/virtio/virtio_user_ethdev.c
> > > >> b/drivers/net/virtio/virtio_user_ethdev.c
> > > >>> index c877968..110f6a9 100644
> > > >>> --- a/drivers/net/virtio/virtio_user_ethdev.c
> > > >>> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> > > >>> @@ -312,6 +312,7 @@ virtio_user_eth_dev_alloc(const char *name)
> > > >>>  	hw->use_simple_rxtx = 0;
> > > >>>  	hw->virtio_user_dev = dev;
> > > >>>  	data->dev_private = hw;
> > > >>> +	data->drv_name = "virtio_user PMD";
> > > >>
> > > >> How driver naming done changed in next-net.
> > > >> Please check any other virtual driver in next-net for sample.
> > > >
> > > > Thank you for the info. And it seems that it's already fixed by that patch.
> > >
> > > That patch modified during merge, can you please confirm the latest
> > > version in the repo?
> >
> > Just checked latest master repo, this problem has been fixed by commit
> 73db5badb04 ("net: align ethdev and eal driver names"). Thanks to David
> Marchand.
> >
> > Yuanhan, do you think this patch can be applied to the stable repo?
> 
> I think I would partially backport that commit to a stable release: just
> pick the virtio changes, with a brand new commit log, stating the issue
> need to be fixed and it's a partial backport from 73db5badb04 ("net: align
> ethdev and eal driver names").
> 
> Okay to you?

That will be great. Actually, I'm wondering if possible to make your work easier by just adding another very simple fix only to stable branch.

Thanks,
Jianfeng

> 
> 	--yliu