netdev - Re: [PATCH iproute2 v3] tc: Show classes in tree view

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Message-ID: <20141224210935.GA24242@angus-think.lan>
Date:	Wed, 24 Dec 2014 23:09:35 +0200
From:	Vadim Kochan <vadim4j@...il.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	Vadim Kochan <vadim4j@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 v3] tc: Show classes in tree view

On Wed, Dec 24, 2014 at 12:14:16PM -0800, Stephen Hemminger wrote:
> On Wed, 24 Dec 2014 02:46:16 +0200
> Vadim Kochan <vadim4j@...il.com> wrote:
> 
> > From: Vadim Kochan <vadim4j@...il.com>
> > 
> > Added new '-t[ree]' which shows classes dependency
> > in the tree view. Meanwhile only generic stats info
> > is supported.
> > 
> > e.g.:
> > 
> > $ tc/tc -t class show dev tap0
> > +---(1:2) htb rate 6Mbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    +---(1:40) htb prio 0 rate 5Mbit ceil 5Mbit burst 15Kb cburst 1600b
> > |    +---(1:50) htb rate 3Mbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    |    +---(1:51) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    |
> > |    +---(1:60) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> > |
> > +---(1:1) htb rate 6Mbit ceil 6Mbit burst 15Kb cburst 1599b
> >      +---(1:10) htb prio 0 rate 5Mbit ceil 5Mbit burst 15Kb cburst 1600b
> >      +---(1:20) htb prio 0 rate 3Mbit ceil 6Mbit burst 15Kb cburst 1599b
> >      +---(1:30) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> > 
> > $ tc/tc -t -s class show dev tap0
> > +---(1:2) htb rate 6Mbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    |    Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> > |    |    rate 0bit 0pps backlog 0b 0p requeues 0
> > |    |
> > |    +---(1:40) htb prio 0 rate 5Mbit ceil 5Mbit burst 15Kb cburst 1600b
> > |    |          Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> > |    |          rate 0bit 0pps backlog 0b 0p requeues 0
> > |    |
> > |    +---(1:50) htb rate 3Mbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    |    |     Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> > |    |    |     rate 0bit 0pps backlog 0b 0p requeues 0
> > |    |    |
> > |    |    +---(1:51) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> > |    |               Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> > |    |               rate 0bit 0pps backlog 0b 0p requeues 0
> > |    |
> > |    +---(1:60) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> > |               Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> > |               rate 0bit 0pps backlog 0b 0p requeues 0
> > |
> > +---(1:1) htb rate 6Mbit ceil 6Mbit burst 15Kb cburst 1599b
> >      |    Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> >      |    rate 0bit 0pps backlog 0b 0p requeues 0
> >      |
> >      +---(1:10) htb prio 0 rate 5Mbit ceil 5Mbit burst 15Kb cburst 1600b
> >      |          Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> >      |          rate 0bit 0pps backlog 0b 0p requeues 0
> >      |
> >      +---(1:20) htb prio 0 rate 3Mbit ceil 6Mbit burst 15Kb cburst 1599b
> >      |          Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> >      |          rate 0bit 0pps backlog 0b 0p requeues 0
> >      |
> >      +---(1:30) htb prio 0 rate 1Kbit ceil 6Mbit burst 15Kb cburst 1599b
> >                 Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
> >                 rate 0bit 0pps backlog 0b 0p requeues 0
> > 
> > Signed-off-by: Vadim Kochan <vadim4j@...il.com>
> > ---
> > Changes v3:
> >     Fixed wrong brackets style
> > 
> > Changes v2:
> >     Removed "Date:" from commit message which was added by mistake.
> > 
> > Changes RFC -> PATCH:
> >     #1 get rid of INIT_HLIST_NODE
> >     #2 added sample output to commit message
> >     #3 use "show_tree=1" instead of "show_tree++"
> >     #4 no need update include/hlist.h (because of #1)
> >     #5 changed a little tree output: parentheses around class id instead of qdisc name
> > 
> >  tc/tc.c        |   5 +-
> >  tc/tc_class.c  | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
> >  tc/tc_common.h |   2 +
> >  3 files changed, 165 insertions(+), 3 deletions(-)
> 
> I don't get strict about checkpatch. But ran this patch through and there are some minor
> things that would be good to fix.
>   1. Split long lines like:
> WARNING: line over 80 characters
> #198: FILE: tc/tc_class.c:219:
> +static void tree_cls_show(FILE *fp, char *buf, struct hlist_head *root_list, int level)
> 
>   2. Don't use variable name 'childs', makes sense to call it children instead??
> 
>   3. Don't use space before * as in:
> ERROR: "foo * bar" should be "foo *bar"
> #285: FILE: tc/tc_class.c:305:
> +	struct rtattr * tb[TCA_MAX+1] = {};
> 
> 
> 
> 

I will fix them.
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