netdev - Re: [PATCH net-next] cxgb4: Add PTP Hardware Clock (PHC) support

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Message-ID: <20170628143729.l5rv6kixvd3rt45z@localhost.localdomain>
Date:   Wed, 28 Jun 2017 16:37:29 +0200
From:   Richard Cochran <richardcochran@...il.com>
To:     Atul Gupta <atul.gupta@...lsio.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, venkatesh@...lsio.com,
        Ganesh Goudar <ganeshgr@...lsio.com>
Subject: Re: [PATCH net-next] cxgb4: Add PTP Hardware Clock (PHC) support

On Wed, Jun 28, 2017 at 01:29:03PM +0530, Atul Gupta wrote:
> Add PTP IEEE-1588 support and make it accessible via PHC subsystem.
> The functionality is enabled for T5/T6 adapters. Driver interfaces with
> Firmware to program and adjust the clock offset.
> 
> Signed-off-by: Atul Gupta <atul.gupta@...lsio.com>
> Signed-off-by: Ganesh Goudar <ganeshgr@...lsio.com>

Please put the PTP maintainer onto CC for PTP patches.

>  drivers/net/ethernet/chelsio/cxgb4/Makefile        |   2 +-
>  drivers/net/ethernet/chelsio/cxgb4/cxgb4.h         |   9 +
>  drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c |  25 +-
>  drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c    |  87 +++-
>  drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.c     | 476 +++++++++++++++++++++
>  drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.h     |  74 ++++
>  drivers/net/ethernet/chelsio/cxgb4/sge.c           | 166 ++++++-
>  drivers/net/ethernet/chelsio/cxgb4/t4_msg.h        |  28 ++
>  drivers/net/ethernet/chelsio/cxgb4/t4_regs.h       |   2 +
>  drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h      |  50 +++
>  10 files changed, 906 insertions(+), 13 deletions(-)

This should be broken down into a series of at least 2 patches:

1. Transmit hardware SO_TIMESTAMPING

2. PHC support

Thanks,
Richard