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From: Stephen Hemminger <stephen@networkplumber.org>
To: Amit Prakash Shukla <amitprakashs@marvell.com>
Cc: Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	Kiran Kumar Kokkilagadda <kirankumark@marvell.com>,
	Nithin Kumar Dabilpuram <ndabilpuram@marvell.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [EXT] Re: [PATCH v2 2/3] graph: pcap capture for graph nodes
Date: Thu, 12 Jan 2023 08:30:24 -0800	[thread overview]
Message-ID: <20230112083024.17c68431@hermes.local> (raw)
In-Reply-To: <PH0PR18MB5167841EC00170E5A8278AD8C8FD9@PH0PR18MB5167.namprd18.prod.outlook.com>

On Thu, 12 Jan 2023 09:57:50 +0000
Amit Prakash Shukla <amitprakashs@marvell.com> wrote:

> Hi Stephen,
> 
> > -----Original Message-----
> > From: Stephen Hemminger <stephen@networkplumber.org>
> > Sent: Wednesday, January 11, 2023 9:37 PM
> > To: Amit Prakash Shukla <amitprakashs@marvell.com>
> > Cc: Jerin Jacob Kollanukkaran <jerinj@marvell.com>; Kiran Kumar
> > Kokkilagadda <kirankumark@marvell.com>; Nithin Kumar Dabilpuram
> > <ndabilpuram@marvell.com>; dev@dpdk.org
> > Subject: [EXT] Re: [PATCH v2 2/3] graph: pcap capture for graph nodes
> > 
> > External Email
> > 
> > ----------------------------------------------------------------------
> > On Wed, 11 Jan 2023 14:23:41 +0530
> > Amit Prakash Shukla <amitprakashs@marvell.com> wrote:
> >   
> > > +
> > > +#define PCAP_DUMP_DATA(dbuf, buf_size, cur_len, sbuf, len)                   \
> > > +do {                                                                         \
> > > +	if ((cur_len + len) >= buf_size)                                     \
> > > +		break;                                                       \
> > > +	rte_memcpy(dbuf + cur_len, sbuf, len);                               \
> > > +	cur_len += len;                                                      \
> > > +} while (0)
> > > +  
> > 
> > Why do you need this to be a macro.
> > Macro's are evil, have side effects and hide code.  
> 
> I had added macro for future, if lot of custom data is to be added to pcapng. Anyways I will remove it
> in next version of patch.

One other option is to add a new custom block type or options in pcapng.
Keep comment as a string, since that is what wireshark etc no how to handle.
Also, packet id data might be useful for graph.


https://pcapng.github.io/pcapng/draft-tuexen-opsawg-pcapng.html

  reply	other threads:[~2023-01-12 16:30 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-23 12:02 [RFC PATCH] graph: add support for pcap trace for graph Amit Prakash Shukla
2022-12-23 16:47 ` Stephen Hemminger
2023-01-06 10:40   ` [EXT] " Amit Prakash Shukla
2023-01-06 16:41     ` Stephen Hemminger
2023-01-06 18:56     ` Stephen Hemminger
2023-01-10 11:26       ` Amit Prakash Shukla
2023-01-10 11:58 ` [PATCH v1 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-10 11:58   ` [PATCH v1 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-10 11:58   ` [PATCH v1 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-10 17:05   ` [PATCH v1 1/3] pcapng: comment option support for epb Stephen Hemminger
2023-01-11  8:53   ` [PATCH v2 " Amit Prakash Shukla
2023-01-11  8:53     ` [PATCH v2 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-11 16:07       ` Stephen Hemminger
2023-01-12  9:57         ` [EXT] " Amit Prakash Shukla
2023-01-12 16:30           ` Stephen Hemminger [this message]
2023-01-19 14:37             ` Amit Prakash Shukla
2023-01-19 16:48               ` Stephen Hemminger
2023-01-11  8:53     ` [PATCH v2 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-12 10:01     ` [PATCH v3 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-12 10:01       ` [PATCH v3 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-12 12:18         ` Jerin Jacob
2023-01-19 14:21           ` [EXT] " Amit Prakash Shukla
2023-01-12 10:01       ` [PATCH v3 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-24 11:21       ` [PATCH v4 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-24 11:21         ` [PATCH v4 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-31  8:06           ` Jerin Jacob
2023-02-03  8:15             ` [EXT] " Amit Prakash Shukla
2023-01-24 11:21         ` [PATCH v4 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-31  8:14           ` Jerin Jacob
2023-02-03  8:16             ` [EXT] " Amit Prakash Shukla
2023-02-03  8:19         ` [PATCH v5 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-02-03  8:19           ` [PATCH v5 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09  9:12             ` David Marchand
2023-02-09  9:29               ` [EXT] " Amit Prakash Shukla
2023-02-03  8:19           ` [PATCH v5 3/3] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09  9:13           ` [PATCH v5 1/3] pcapng: comment option support for epb David Marchand
2023-02-09 16:48             ` Stephen Hemminger
2023-02-09  9:56           ` [PATCH v6 1/4] " Amit Prakash Shukla
2023-02-09  9:56             ` [PATCH v6 2/4] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09  9:56             ` [PATCH v6 3/4] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09  9:56             ` [PATCH v6 4/4] test/graph: initialize graph param variable Amit Prakash Shukla
2023-02-09 10:03             ` [PATCH v6 1/4] pcapng: comment option support for epb Amit Prakash Shukla
2023-02-09 10:24             ` [PATCH v7 1/3] " Amit Prakash Shukla
2023-02-09 10:24               ` [PATCH v7 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09 10:24               ` [PATCH v7 3/3] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09 17:28                 ` Jerin Jacob
2023-02-10 12:18                   ` David Marchand

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