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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Marc Sune <marc.sune@bisdn.de>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 1/2] Added ETH_SPEED_CAP bitmap in rte_eth_dev_info
Date: Wed, 27 May 2015 06:02:31 +0200	[thread overview]
Message-ID: <2412503.21Wb9XeS85@xps13> (raw)
In-Reply-To: <1432669843-15672-2-git-send-email-marc.sune@bisdn.de>

Hi Marc,

2015-05-26 21:50, Marc Sune:
> Added constants and bitmap to struct rte_eth_dev_info to be used by PMDs.
> 
> Signed-off-by: Marc Sune <marc.sune@bisdn.de>
[...]
> +/**
> + * Device supported speeds
> + */
> +#define ETH_SPEED_CAP_NOT_PHY	(0)  /*< No phy media > */

Why not starting with lower values? Some new drivers may be interested
by lower speed.

> +#define ETH_SPEED_CAP_10M_HD	(1 << 0)  /*< 10 Mbps half-duplex> */
> +#define ETH_SPEED_CAP_10M_FD	(1 << 1)  /*< 10 Mbps full-duplex> */
> +#define ETH_SPEED_CAP_100M_HD	(1 << 2)  /*< 100 Mbps half-duplex> */
> +#define ETH_SPEED_CAP_100M_FD	(1 << 3)  /*< 100 Mbps full-duplex> */
> +#define ETH_SPEED_CAP_1G	(1 << 4)  /*< 1 Gbps > */
> +#define ETH_SPEED_CAP_2_5G	(1 << 5)  /*< 2.5 Gbps > */
> +#define ETH_SPEED_CAP_5G	(1 << 6)  /*< 5 Gbps > */
> +#define ETH_SPEED_CAP_10G	(1 << 7)  /*< 10 Mbps > */
> +#define ETH_SPEED_CAP_20G	(1 << 8)  /*< 20 Gbps > */
> +#define ETH_SPEED_CAP_25G	(1 << 9)  /*< 25 Gbps > */
> +#define ETH_SPEED_CAP_40G	(1 << 10)  /*< 40 Gbps > */
> +#define ETH_SPEED_CAP_50G	(1 << 11)  /*< 50 Gbps > */
> +#define ETH_SPEED_CAP_56G	(1 << 12)  /*< 56 Gbps > */
> +#define ETH_SPEED_CAP_100G	(1 << 13)  /*< 100 Gbps > */

We should note that rte_eth_link is using ETH_LINK_SPEED_* constants
which are not some bitmaps so we have to create these new constants.
Furthermore, rte_eth_link.link_speed is an uint16_t so it is limited
to 40G. Should we use some constant bitmaps here also?
What about removing _CAP suffix from your constants?

[...]
> +	uint32_t speed_capa;  /**< Supported speeds bitmap (ETH_SPEED_CAP_). */

If the constants are ETH_SPEED_CAP, why not wording this variable speed_cap?

  reply	other threads:[~2015-05-27  4:32 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-11 23:45 [dpdk-dev] [RFC PATCH 0/2] ethdev: add port speed capability bitmap Marc Sune
2015-05-11 23:45 ` [dpdk-dev] [RFC PATCH 1/2] Added ETH_SPEED_CAP bitmap in rte_eth_dev_info Marc Sune
2015-05-25 17:46   ` Stephen Hemminger
2015-05-26  8:41     ` Marc Sune
2015-05-26 15:03   ` Stephen Hemminger
2015-05-26 15:09     ` Marc Sune
2015-05-11 23:45 ` [dpdk-dev] [RFC PATCH 2/2] Filling speed capability bitmaps in the PMDs Marc Sune
2015-05-25 16:32 ` [dpdk-dev] [RFC PATCH 0/2] ethdev: add port speed capability bitmap Marc Sune
2015-05-26 19:50 ` [dpdk-dev] [PATCH v2 " Marc Sune
2015-05-26 19:50   ` [dpdk-dev] [PATCH v2 1/2] Added ETH_SPEED_CAP bitmap in rte_eth_dev_info Marc Sune
2015-05-27  4:02     ` Thomas Monjalon [this message]
2015-05-27  9:15       ` Marc Sune
2015-05-29 18:23         ` Thomas Monjalon
2015-06-08  8:50           ` Marc Sune
2015-06-11  9:08             ` Thomas Monjalon
2015-06-11 14:35               ` Marc Sune
2015-05-26 19:50   ` [dpdk-dev] [PATCH v2 2/2] Filling speed capability bitmaps in the PMDs Marc Sune
2015-05-26 21:20     ` Igor Ryzhov
2015-05-27  8:59       ` Marc Sune
2015-08-28 23:20   ` [dpdk-dev] [PATCH v3 0/2] ethdev: add port speed capability bitmap Marc Sune
2015-08-28 23:20     ` [dpdk-dev] [PATCH v3 1/2] Added ETH_SPEED_ bitmap in rte_eth_dev_info Marc Sune
2015-08-28 23:20     ` [dpdk-dev] [PATCH v3 2/2] Filling speed capability bitmaps in the PMDs Marc Sune
2015-08-29  0:16     ` [dpdk-dev] [PATCH v4 0/2] ethdev: add port speed capability bitmap Marc Sune
2015-08-29  0:16       ` [dpdk-dev] [PATCH v4 1/2] Added ETH_SPEED_ bitmap in rte_eth_dev_info Marc Sune
2015-08-29  0:16       ` [dpdk-dev] [PATCH v4 2/2] Filling speed capability bitmaps in the PMDs Marc Sune
2015-09-07 20:52       ` [dpdk-dev] [PATCH v4 0/2] ethdev: add port speed capability bitmap Marc Sune
2015-09-08 10:03         ` Nélio Laranjeiro
2015-09-08 20:26           ` Marc Sune
2015-09-09 13:10           ` Nélio Laranjeiro
2015-09-09 13:33             ` Thomas Monjalon
2015-09-13 19:14               ` Marc Sune
2015-09-13 21:18                 ` Thomas Monjalon
2015-09-14 10:02                   ` Nélio Laranjeiro
2015-09-14 10:52                   ` Morten Brørup
2015-09-14 21:33                     ` Marc Sune
2015-09-14 22:50                       ` Morten Brørup
2015-09-15  8:25                         ` Nélio Laranjeiro
2015-09-15  8:48                           ` Marc Sune
2015-09-15  9:39                             ` Morten Brørup
2015-09-15 10:04                             ` Adrien Mazarguil
2015-09-15 10:24                               ` Morten Brørup
2015-09-15 21:20                               ` Marc Sune
2015-09-16 14:41                                 ` Adrien Mazarguil
2015-09-15  7:05                       ` Thomas Monjalon
2015-09-15  7:33                         ` Morten Brørup
2015-09-15  9:06                       ` Morten Brørup
2015-10-04 21:12       ` [dpdk-dev] [PATCH v5 0/4] ethdev: add speed capabilities and refactor link API Marc Sune
2015-10-04 21:12         ` [dpdk-dev] [PATCH v5 1/4] ethdev: Added ETH_SPEED_CAP bitmap for ports Marc Sune
2015-10-04 21:12         ` [dpdk-dev] [PATCH v5 2/4] ethdev: Fill speed capability bitmaps in the PMDs Marc Sune
2015-10-04 21:12         ` [dpdk-dev] [PATCH v5 3/4] ethdev: redesign link speed config API Marc Sune
2015-10-05 10:59           ` Neil Horman
2015-10-07 13:31             ` Marc Sune
2015-10-06 13:48           ` Nélio Laranjeiro
2015-10-07 13:37             ` Marc Sune
2016-01-28 17:33           ` Harish Patil
2016-02-02  2:20             ` Stephen Hemminger
2016-02-02 22:30               ` Marc
2016-02-11 15:27                 ` Nélio Laranjeiro
2016-02-11 23:23                   ` Marc
2015-10-04 21:12         ` [dpdk-dev] [PATCH v5 4/4] doc: update with link changes Marc Sune
2015-10-04 21:21         ` [dpdk-dev] [PATCH v5 0/4] ethdev: add speed capabilities and refactor link API Marc Sune
2015-06-18 14:43 [dpdk-dev] [PATCH v2 1/2] Added ETH_SPEED_CAP bitmap in rte_eth_dev_info Morten Brørup
2015-06-18 15:06 ` Marc Sune
2015-06-18 15:33   ` Thomas Monjalon

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