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From: "Benoit Ganne (bganne)" <bganne@cisco.com>
To: "Thomas Monjalon" <thomas@monjalon.net>,
	"Ferruh Yigit" <ferruh.yigit@intel.com>,
	"Andrew Rybchenko" <arybchenko@solarflare.com>,
	"Morten Brørup" <mb@smartsharesystems.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, Matan Azrad <matan@mellanox.com>
Subject: Re: [dpdk-dev] [RFC] ethdev: use special speed for virtual Ethernet devices
Date: Wed, 1 Apr 2020 10:03:08 +0000	[thread overview]
Message-ID: <CH2PR11MB43276561AAA77F101D27FA99C1C90@CH2PR11MB4327.namprd11.prod.outlook.com> (raw)
In-Reply-To: <2254486.aKNjEaI27c@xps>

Hi all,

>> Alternatively, we could expand the meaning of ETH_SPEED_NUM_NONE:
>> -#define ETH_SPEED_NUM_NONE         0 /**< Not defined */
>> +#define ETH_SPEED_NUM_NONE         0 /**< Not defined or unknown
>> (virtual device) */
> Yes I agree with extending the comment for NONE.
>> The special value could also be used in cases like this:
>>
>> http://inbox.dpdk.org/dev/AM0PR0502MB401907ADE7CEA27DC642DF35D2CB0@AM0PR0502MB4019.eurprd05.prod.outlook.com/T/#t
> Yes, if speed is unknown, it should be reported as 0.

Ok that should answer Matan concerns: it is perfectly fine for a PMD to return ETH_SPEED_NUM_NONE if it does not have better information.
From my app writer point of view it makes sense.

Best
ben

  reply	other threads:[~2020-04-01 10:03 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-01  9:33 Morten Brørup
2020-04-01  9:53 ` Thomas Monjalon
2020-04-01 10:03   ` Benoit Ganne (bganne) [this message]
2020-04-01 10:06   ` [dpdk-dev] [RFC] ethdev: use special speed for virtual Ethernetdevices Morten Brørup
2020-04-02 12:54     ` Ivan Dyukov
2020-04-02 13:50       ` Morten Brørup
2020-04-02 15:29         ` Stephen Hemminger
2020-04-02 20:41         ` Ivan Dyukov
2020-04-02 20:58           ` Thomas Monjalon
2020-04-03  8:05             ` Ivan Dyukov
2020-04-03  9:45               ` Morten Brørup
2020-04-03 11:01                 ` Thomas Monjalon
2020-04-07 22:26                 ` [dpdk-dev] [PATCH 0/2] ethdev link speed Thomas Monjalon
2020-04-07 22:26                   ` [dpdk-dev] [PATCH 1/2] ethdev: deduplicate functions to get link infos Thomas Monjalon
2020-04-08  5:21                     ` Asaf Penso
2020-04-08 12:49                       ` Thomas Monjalon
2020-04-13 14:14                     ` Andrew Rybchenko
2020-04-07 22:26                   ` [dpdk-dev] [PATCH 2/2] ethdev: allow unknown link speed Thomas Monjalon
2020-04-08  5:39                     ` Jerin Jacob
2020-04-10 10:53                     ` Morten Brørup
2020-04-13 14:26                     ` Andrew Rybchenko
2020-04-16 13:42                       ` Ferruh Yigit
2020-04-26 11:44                     ` Matan Azrad

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