netdev - RE: [net-next v3 13/15] iecm: Add ethtool

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Date:   Mon, 29 Jun 2020 22:07:18 +0000
From:   "Brady, Alan" <alan.brady@...el.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "Michael, Alice" <alice.michael@...el.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "nhorman@...hat.com" <nhorman@...hat.com>,
        "sassmann@...hat.com" <sassmann@...hat.com>,
        "Burra, Phani R" <phani.r.burra@...el.com>,
        "Hay, Joshua A" <joshua.a.hay@...el.com>,
        "Chittim, Madhu" <madhu.chittim@...el.com>,
        "Linga, Pavan Kumar" <pavan.kumar.linga@...el.com>,
        "Skidmore, Donald C" <donald.c.skidmore@...el.com>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Samudrala, Sridhar" <sridhar.samudrala@...el.com>
Subject: RE: [net-next v3 13/15] iecm: Add ethtool

> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Monday, June 29, 2020 2:31 PM
> To: Brady, Alan <alan.brady@...el.com>
> Cc: Kirsher, Jeffrey T <jeffrey.t.kirsher@...el.com>; davem@...emloft.net;
> Michael, Alice <alice.michael@...el.com>; netdev@...r.kernel.org;
> nhorman@...hat.com; sassmann@...hat.com; Burra, Phani R
> <phani.r.burra@...el.com>; Hay, Joshua A <joshua.a.hay@...el.com>; Chittim,
> Madhu <madhu.chittim@...el.com>; Linga, Pavan Kumar
> <pavan.kumar.linga@...el.com>; Skidmore, Donald C
> <donald.c.skidmore@...el.com>; Brandeburg, Jesse
> <jesse.brandeburg@...el.com>; Samudrala, Sridhar
> <sridhar.samudrala@...el.com>
> Subject: Re: [net-next v3 13/15] iecm: Add ethtool
> 
> On Mon, 29 Jun 2020 21:00:57 +0000 Brady, Alan wrote:
> > > > +/* Helper macro to define an iecm_stat structure with proper size and
> type.
> > > > + * Use this when defining constant statistics arrays. Note that
> > > > +@...pe expects
> > > > + * only a type name and is used multiple times.
> > > > + */
> > > > +#define IECM_STAT(_type, _name, _stat) { \
> > > > +	.stat_string = _name, \
> > > > +	.sizeof_stat = sizeof_field(_type, _stat), \
> > > > +	.stat_offset = offsetof(_type, _stat) \ }
> > > > +
> > > > +/* Helper macro for defining some statistics related to queues */
> > > > +#define IECM_QUEUE_STAT(_name, _stat) \
> > > > +	IECM_STAT(struct iecm_queue, _name, _stat)
> > > > +
> > > > +/* Stats associated with a Tx queue */ static const struct
> > > > +iecm_stats iecm_gstrings_tx_queue_stats[] = {
> > > > +	IECM_QUEUE_STAT("%s-%u.packets", q_stats.tx.packets),
> > > > +	IECM_QUEUE_STAT("%s-%u.bytes", q_stats.tx.bytes), };
> > > > +
> > > > +/* Stats associated with an Rx queue */ static const struct
> > > > +iecm_stats iecm_gstrings_rx_queue_stats[] = {
> > > > +	IECM_QUEUE_STAT("%s-%u.packets", q_stats.rx.packets),
> > > > +	IECM_QUEUE_STAT("%s-%u.bytes", q_stats.rx.bytes),
> > > > +	IECM_QUEUE_STAT("%s-%u.generic_csum", q_stats.rx.generic_csum),
> > > > +	IECM_QUEUE_STAT("%s-%u.basic_csum", q_stats.rx.basic_csum),
> > >
> > > What's basic and generic? perhaps given them the Linux names?
> >
> > I believe these should be hw_csum for basic_csum and csum_valid for
> generic_csum, will fix.
> 
> I was thinking of just saying csum_complete and csum_unnecessary.
> 
> But generic_sum doesn't seem to be incremented in this patch, so hard to tell
> what it is :S
> 

csum_complete and csum_unnecessary works.  Sorry some of the checksum functionality didn't quite make the cut in time for the patch series but will appear in a future patch soon.   Thanks.

Alan