netdev - Re: [PATCH net-next v2 3/9] ethtool: add a new command for reading standard stats

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Date:   Sat, 17 Apr 2021 22:27:55 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, andrew@...n.ch,
        mkubecek@...e.cz, idosch@...dia.com, saeedm@...dia.com,
        michael.chan@...adcom.com
Subject: Re: [PATCH net-next v2 3/9] ethtool: add a new command for reading
 standard stats

On Sat, Apr 17, 2021 at 12:18:08PM -0700, Jakub Kicinski wrote:
> On Sat, 17 Apr 2021 12:15:20 -0700 Jakub Kicinski wrote:
> > On Sat, 17 Apr 2021 21:53:40 +0300 Ido Schimmel wrote:
> > > On Sat, Apr 17, 2021 at 11:13:51AM -0700, Jakub Kicinski wrote:  
> > > > On Sat, 17 Apr 2021 10:57:42 -0700 Jakub Kicinski wrote:    
> > > >
> > > > 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.    
> > > 
> > > So the kernel can work with ETHTOOL_A_BITSET_BIT_INDEX /
> > > ETHTOOL_A_BITSET_BIT_NAME, but I was wondering if using ethtool binary
> > > we can query the strings that the kernel will accept. I think not?  
> 
> Heh, I misunderstood your question. You're asking if the strings can be
> queried from the command line.

Yea :)

> 
> No, I don't think so. We could add some form of "porcelain" command if
> needed.

Can be useful for automatic bash completion, but if you need to patch
mag page / help message, then also patching bash completion is not a big
deal.