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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Pascal Mazon <pascal.mazon@6wind.com>, keith.wiles@intel.com
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 1/6] net/tap: use correct tap name
Date: Tue, 31 Jan 2017 13:06:06 +0000	[thread overview]
Message-ID: <abf0d961-4b2a-e1bf-0732-cc9d933f9278@intel.com> (raw)
In-Reply-To: <1485855778-15496-1-git-send-email-pascal.mazon@6wind.com>

On 1/31/2017 9:42 AM, Pascal Mazon wrote:
> dev->data->name contains "net_tap", the device driver name.

I see what patch does, just as a note to commit log:

AFAIK, "dev->data->name" is device name, and for this case it is
"net_tap#", like "net_tap0", "net_tap1" ...

"dev->data_drv_name" is the driver name which is "net_tap"

> dev->data->dev_private->name contains the actual iface name,
> e.g. "dtap0".

Right, I agree this is correct comparing "dev->data->name"

But the problem is pmd->name is per eth_dev.

If I read code correct, for multiple queue support, each queue pair will
create a tap device, so each needs a different name.

So can't just use pmd->name. Need to create a name per queue pair, it
can be combination of pmd->name + "_" + queue_id? Or can keep a name per
queue pair, instead of eth_dev.

What do you think?

> 
> In tun_alloc() especially, we want to use the latter. Otherwise the
> netdevice would be wrongly named "net_tap". Furthermore, creating
> several tap vdev would point to the same netdevice.
> 
> In any case, it must to be consistent with the tun_alloc() call in
> eth_dev_tap_create().
> 
> Signed-off-by: Pascal Mazon <pascal.mazon@6wind.com>
<...>

  parent reply	other threads:[~2017-01-31 13:06 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-31  9:42 Pascal Mazon
2017-01-31  9:42 ` [dpdk-dev] [PATCH 2/6] net/tap: use correct channel for error logs Pascal Mazon
2017-01-31 13:07   ` Ferruh Yigit
2017-01-31 16:58     ` Stephen Hemminger
2017-01-31 17:04       ` Wiles, Keith
2017-01-31  9:42 ` [dpdk-dev] [PATCH 3/6] net/tap: don't set fd value overwritten just below Pascal Mazon
2017-01-31  9:42 ` [dpdk-dev] [PATCH 4/6] net/tap: keep kernel-assigned MAC address Pascal Mazon
2017-01-31 13:13   ` Ferruh Yigit
2017-01-31  9:42 ` [dpdk-dev] [PATCH 5/6] net/tap: display tap name after parsing Pascal Mazon
2017-01-31 13:16   ` Ferruh Yigit
2017-01-31  9:42 ` [dpdk-dev] [PATCH 6/6] net/tap: implement link up and down callbacks Pascal Mazon
2017-01-31 13:21   ` Ferruh Yigit
2017-01-31 14:31     ` Pascal Mazon
2017-01-31 13:06 ` Ferruh Yigit [this message]
2017-01-31 14:23   ` [dpdk-dev] [PATCH 1/6] net/tap: use correct tap name Pascal Mazon
2017-01-31 15:28     ` Ferruh Yigit
2017-01-31 15:30       ` Pascal Mazon
2017-01-31 15:38         ` Ferruh Yigit
2017-01-31 15:44           ` Wiles, Keith
2017-01-31 15:44             ` Pascal Mazon
2017-01-31 16:06               ` Wiles, Keith
2017-01-31 16:39                 ` Pascal Mazon
2017-01-31 23:29                   ` Wiles, Keith
2017-02-01  8:11                     ` Pascal Mazon
2017-02-01 15:25                       ` Wiles, Keith
2017-02-01 15:40                         ` Pascal Mazon
2017-02-01 15:55                           ` Wiles, Keith
2017-02-01 17:50                             ` Ferruh Yigit
2017-02-02  8:05                               ` Pascal Mazon
2017-02-02  8:25                                 ` Pascal Mazon
2017-02-02 10:23                                   ` Ferruh Yigit
2017-01-31 14:52 ` Wiles, Keith
2017-01-31 15:14   ` Ferruh Yigit
2017-01-31 15:19     ` Wiles, Keith
2017-02-02 13:46 ` Wiles, Keith
2017-02-02 16:17 ` [dpdk-dev] [PATCH v2 1/7] " Pascal Mazon
2017-02-02 16:17   ` [dpdk-dev] [PATCH v2 2/7] net/tap: use correct channel for error logs Pascal Mazon
2017-02-02 16:18   ` [dpdk-dev] [PATCH v2 3/7] net/tap: don't set fd value overwritten just below Pascal Mazon
2017-02-02 16:18   ` [dpdk-dev] [PATCH v2 4/7] net/tap: keep kernel-assigned MAC address Pascal Mazon
2017-02-02 16:18   ` [dpdk-dev] [PATCH v2 5/7] net/tap: display tap name after parsing Pascal Mazon
2017-02-02 16:18   ` [dpdk-dev] [PATCH v2 6/7] net/tap: implement link up and down callbacks Pascal Mazon
2017-02-02 16:18   ` [dpdk-dev] [PATCH v2 7/7] net/tap: support promiscuous and allmulti setting Pascal Mazon
2017-02-02 16:23   ` [dpdk-dev] [PATCH v2 1/7] net/tap: use correct tap name Wiles, Keith
2017-02-02 16:24     ` Wiles, Keith
2017-02-02 21:55       ` Ferruh Yigit

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