All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jakub Kicinski <kuba@kernel.org>
To: Ido Schimmel <idosch@idosch.org>
Cc: netdev@vger.kernel.org, davem@davemloft.net, andrew@lunn.ch,
	mkubecek@suse.cz, idosch@nvidia.com, saeedm@nvidia.com,
	michael.chan@broadcom.com
Subject: Re: [PATCH net-next v2 3/9] ethtool: add a new command for reading standard stats
Date: Sat, 17 Apr 2021 11:13:51 -0700	[thread overview]
Message-ID: <20210417111351.27c54b99@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <20210417105742.76bb2461@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>

On Sat, 17 Apr 2021 10:57:42 -0700 Jakub Kicinski wrote:
> > I tried to understand how you add new groups without user space
> > changes and I think this statement is not entirely accurate.
> > 
> > At minimum, user space needs to know the names of these groups, but
> > currently there is no way to query the information, so it's added to
> > ethtool's help message:
> > 
> > ethtool [ FLAGS ] -S|--statistics DEVNAME       Show adapter statistics       
> >        [ --groups [eth-phy] [eth-mac] [eth-ctrl] [rmon] ]  
> 
> Um, yes and now. The only places the user space puts those names 
> is the help message and man page.
> 
> Thru the magic of bitsets it doesn't actually interpret them, so
> with old user space you can still query a new group, it will just 
> not show up in "ethtool -h".
> 
> Is that what you're saying?

FWIW ethnl_parse_bit() -> ETHTOOL_A_BITSET_BIT_NAME
User space can also use raw flags like --groups 0xf but that's perhaps
too spartan for serious use.

  reply	other threads:[~2021-04-17 18:13 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16 19:27 [PATCH net-next v2 0/9] ethtool: add uAPI for reading standard stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 1/9] docs: networking: extend the statistics documentation Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 2/9] docs: ethtool: document standard statistics Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 3/9] ethtool: add a new command for reading standard stats Jakub Kicinski
2021-04-17 17:15   ` Ido Schimmel
2021-04-17 17:57     ` Jakub Kicinski
2021-04-17 18:13       ` Jakub Kicinski [this message]
2021-04-17 18:53         ` Ido Schimmel
2021-04-17 19:15           ` Jakub Kicinski
2021-04-17 19:18             ` Jakub Kicinski
2021-04-17 19:27               ` Ido Schimmel
2021-04-17 20:10               ` Michal Kubecek
2021-04-19 19:20                 ` Jakub Kicinski
2021-04-18  8:20   ` Ido Schimmel
2021-04-16 19:27 ` [PATCH net-next v2 4/9] ethtool: add interface to read standard MAC stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 5/9] ethtool: add interface to read standard MAC Ctrl stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 6/9] ethtool: add interface to read RMON stats Jakub Kicinski
2021-04-18  8:04   ` Ido Schimmel
2021-04-19 18:55     ` Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 7/9] mlxsw: implement ethtool standard stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 8/9] bnxt: " Jakub Kicinski
2021-04-19  0:27   ` Michael Chan
2021-04-16 19:27 ` [PATCH net-next v2 9/9] mlx5: " Jakub Kicinski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210417111351.27c54b99@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com \
    --to=kuba@kernel.org \
    --cc=andrew@lunn.ch \
    --cc=davem@davemloft.net \
    --cc=idosch@idosch.org \
    --cc=idosch@nvidia.com \
    --cc=michael.chan@broadcom.com \
    --cc=mkubecek@suse.cz \
    --cc=netdev@vger.kernel.org \
    --cc=saeedm@nvidia.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.