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From: Richard Cochran <richardcochran@gmail.com>
To: Saeed Mahameed <saeed@kernel.org>
Cc: Eran Ben Elisha <eranbe@nvidia.com>,
	Jakub Kicinski <kuba@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>
Subject: Re: [net-next V2 08/15] net/mlx5e: Add TX PTP port object support
Date: Mon, 7 Dec 2020 07:19:06 -0800	[thread overview]
Message-ID: <20201207151906.GA30105@hoboy.vegasvil.org> (raw)
In-Reply-To: <a03538c728bf232ccae718d78de43883c4fca70d.camel@kernel.org>

On Mon, Dec 07, 2020 at 12:37:45AM -0800, Saeed Mahameed wrote:

> we are not adding any new mechanism.

Sorry, I didn't catch the beginning of this thread.  Are you proposing
adding HWTSTAMP_TX_ON_TIME_CRITICAL_ONLY to net_tstamp.h ?

If so, then ...

> Our driver feature is and internal enhancement yes, but the suggested
> flag is very far from indicating any internal enhancement, is actually
> an enhancement to the current API, and is a very simple extension with
> wide range of improvements to all layers.

No, that would be no enhancement but rather a hack for poorly designed
hardware.
 
> Our driver can optimize accuracy when this flag is set, other drivers
> might be happy to implement it since they already have a slow hw

Name three other drivers that would "be happy" to implement this.  Can
you name even one other?

Thanks,
Richard



  parent reply	other threads:[~2020-12-07 15:20 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-03  4:20 [pull request][net-next V2 00/15] mlx5 updates 2020-12-01 Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 01/15] net/mlx5e: Free drop RQ in a dedicated function Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 02/15] net/mlx5e: Allow CQ outside of channel context Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 03/15] net/mlx5e: Allow RQ " Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 04/15] net/mlx5e: Allow SQ " Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 05/15] net/mlx5e: Change skb fifo push/pop API to be used without SQ Saeed Mahameed
2020-12-03  4:20 ` [net-next V2 06/15] net/mlx5e: Split SW group counters update function Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 07/15] net/mlx5e: Move MLX5E_RX_ERR_CQE macro Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 08/15] net/mlx5e: Add TX PTP port object support Saeed Mahameed
2020-12-04  2:29   ` Jakub Kicinski
2020-12-04 19:33     ` Saeed Mahameed
2020-12-04 20:26       ` Jakub Kicinski
2020-12-04 21:57         ` Saeed Mahameed
2020-12-04 22:52           ` Jakub Kicinski
2020-12-05  0:55             ` Vladimir Oltean
2020-12-07  6:22               ` Saeed Mahameed
2020-12-04 23:17           ` Jakub Kicinski
2020-12-04 23:57             ` Saeed Mahameed
2020-12-05  0:24               ` Jakub Kicinski
2020-12-06 13:37                 ` Eran Ben Elisha
2020-12-06 17:08                   ` Richard Cochran
2020-12-07  8:37                     ` Saeed Mahameed
2020-12-07 11:05                       ` Eran Ben Elisha
2020-12-07 15:19                       ` Richard Cochran [this message]
2020-12-07 20:42                         ` Jakub Kicinski
2020-12-07 22:04                           ` Saeed Mahameed
2020-12-08 13:02                           ` Richard Cochran
2020-12-06 13:36             ` Eran Ben Elisha
2020-12-07 20:29               ` Jakub Kicinski
2020-12-06 13:33           ` Eran Ben Elisha
2020-12-05  1:49         ` Vladimir Oltean
2020-12-05  2:10           ` Jakub Kicinski
2020-12-05 13:20           ` Richard Cochran
2020-12-07  5:50           ` Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 09/15] net/mlx5e: Add TX port timestamp support Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 10/15] net/mlx5e: remove unnecessary memset Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 11/15] net/mlx5e: Remove duplicated include Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 12/15] net/mlx5: Arm only EQs with EQEs Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 13/15] net/mlx5: Fix passing zero to 'PTR_ERR' Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 14/15] net/mlx5e: Split between RX/TX tunnel FW support indication Saeed Mahameed
2020-12-03  4:21 ` [net-next V2 15/15] net/mlx5e: Fill mlx5e_create_cq_param in a function Saeed Mahameed

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