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From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: "Morten Brørup" <mb@smartsharesystems.com>,
	"Randles, Ronan" <ronan.randles@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: "Van Haaren, Harry" <harry.van.haaren@intel.com>
Subject: RE: [PATCH 02/12] net: add function to pretty print IPv4
Date: Wed, 15 Dec 2021 01:06:14 +0000	[thread overview]
Message-ID: <DM6PR11MB4491A8A8E7CFC8DA5D3D46F59A769@DM6PR11MB4491.namprd11.prod.outlook.com> (raw)
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35D86D6F@smartserver.smartshare.dk>



> -----Original Message-----
> From: Morten Brørup <mb@smartsharesystems.com>
> Sent: Tuesday, December 14, 2021 5:31 PM
> To: Randles, Ronan <ronan.randles@intel.com>; dev@dpdk.org
> Cc: Van Haaren, Harry <harry.van.haaren@intel.com>
> Subject: RE: [PATCH 02/12] net: add function to pretty print IPv4
> 
> > From: Ronan Randles [mailto:ronan.randles@intel.com]
> > Sent: Tuesday, 14 December 2021 15.13
> >
> > This function accepts an uint32_t representation of an IP address and
> > produces a string representation stored in a char * buffer. Realavent
> > unit tests also included.
> >
> > Signed-off-by: Ronan Randles <ronan.randles@intel.com>
> 
> [snip]
> 
> > diff --git a/lib/net/rte_ip.h b/lib/net/rte_ip.h
> > index 188054fda4..e46f0b41ba 100644
> > --- a/lib/net/rte_ip.h
> > +++ b/lib/net/rte_ip.h
> > @@ -444,6 +444,26 @@ __rte_experimental
> >  int32_t
> >  rte_ip_parse_addr(const char *src_ip, uint32_t *output_addr);
> >
> > +
> > +/**
> > + * Print IP address from 32 bit int into char * buffer.
> > + *
> > + * @param ip_addr
> > + *   ip address to be printed.
> > + * @param buffer
> > + *   The buffer the string will be saved into.
> > + * @param buffer_size
> > + *   size of buffer to be used.
> > + *
> > + * @retval 0
> > + *   Success.
> > + * @retval -1
> > + *   Failure due to invalid input arguments.
> > + */
> > +__rte_experimental
> > +int32_t
> > +rte_ip_print_addr(uint32_t ip_addr, char *buffer, uint32_t
> > buffer_size);
> > +
> 
> In continuation of my email reply about the IPv4 parse function...
> 
> I have a few suggestions to the IPv4 print function too:
> 
> The return value should be the number of characters written to the output string, and still -1 on error. With this modification, you could
> use the return type ssize_t instead of int32_t.
> 
> Furthermore, I would prefer having the parameters in the same order as snprintf(): char *str, size_t size, const uint32_t ip_addr. Please
> also notice the suggested changed type for the size, and the const added to the ip_addr.
> 
Honestly, I don't understand why we need to introduce such functions
inside DPDK at all.
What's wrong with existing standard ones: inet_ntop() and inet_pton()?



  reply	other threads:[~2021-12-15  1:06 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-14 14:12 [PATCH 00/12] add packet generator library and example app Ronan Randles
2021-12-14 14:12 ` [PATCH 01/12] net: add string to IPv4 parse function Ronan Randles
2021-12-14 17:31   ` Morten Brørup
2021-12-15  9:27     ` Bruce Richardson
2021-12-15  9:35       ` Morten Brørup
2021-12-15 10:11         ` Bruce Richardson
2022-01-19 14:20   ` Thomas Monjalon
2021-12-14 14:12 ` [PATCH 02/12] net: add function to pretty print IPv4 Ronan Randles
2021-12-14 16:08   ` Stephen Hemminger
2021-12-14 17:42     ` Morten Brørup
2021-12-14 17:31   ` Morten Brørup
2021-12-15  1:06     ` Ananyev, Konstantin [this message]
2021-12-15  3:20       ` Stephen Hemminger
2021-12-15  7:23         ` Morten Brørup
2021-12-15 13:06           ` Ananyev, Konstantin
2022-01-19 14:24             ` Thomas Monjalon
2022-01-19 14:41               ` Van Haaren, Harry
2021-12-14 14:12 ` [PATCH 03/12] gen: add files for initial traffic generation library Ronan Randles
2021-12-14 14:12 ` [PATCH 04/12] gen: add basic Rx and Tx routines and tests Ronan Randles
2021-12-14 14:12 ` [PATCH 05/12] gen: add raw packet data API " Ronan Randles
2021-12-15 12:40   ` Jerin Jacob
2021-12-17 11:40     ` Van Haaren, Harry
2021-12-17 16:19       ` Thomas Monjalon
2021-12-20 10:21         ` Van Haaren, Harry
2022-01-19 14:56           ` Thomas Monjalon
2022-01-20 10:21             ` Van Haaren, Harry
2022-01-21 10:45               ` Van Haaren, Harry
2021-12-20 13:21       ` Jerin Jacob
2022-01-21 14:20         ` Xueming(Steven) Li
2021-12-14 14:12 ` [PATCH 06/12] gen: add parsing infrastructure and Ether protocol Ronan Randles
2021-12-14 14:12 ` [PATCH 07/12] gen: add gen IP parsing Ronan Randles
2021-12-14 14:12 ` [PATCH 08/12] examples/generator: import code from basicfwd.c Ronan Randles
2021-12-14 14:12 ` [PATCH 09/12] examples/generator: enable gen library for traffic gen Ronan Randles
2021-12-14 14:12 ` [PATCH 10/12] examples/generator: telemetry support Ronan Randles
2021-12-14 14:12 ` [PATCH 11/12] examples/generator: link status check added Ronan Randles
2021-12-14 14:12 ` [PATCH 12/12] examples/generator: line rate limiting Ronan Randles
2021-12-14 16:10   ` Stephen Hemminger
2021-12-14 14:57 ` [PATCH 00/12] add packet generator library and example app Bruce Richardson
2021-12-14 15:59   ` Randles, Ronan
2022-01-12 16:18   ` Morten Brørup
2021-12-15 12:31 ` Jerin Jacob
2021-12-15 14:07   ` Bruce Richardson
2022-01-21 10:31 ` [PATCH v2 00/15] " Ronan Randles
2022-01-21 10:31   ` [PATCH v2 01/15] net: add string to IPv4 parse function Ronan Randles
2022-01-21 10:31   ` [PATCH v2 02/15] net: add function to pretty print IPv4 Ronan Randles
2022-01-21 16:20     ` Stephen Hemminger
2022-01-21 10:31   ` [PATCH v2 03/15] gen: add files for initial traffic generation library Ronan Randles
2022-01-21 10:31   ` [PATCH v2 04/15] gen: add basic Rx and Tx routines and tests Ronan Randles
2022-01-21 10:31   ` [PATCH v2 05/15] gen: add raw packet data API " Ronan Randles
2022-01-21 10:31   ` [PATCH v2 06/15] gen: add parsing infrastructure and Ether protocol Ronan Randles
2022-01-21 10:31   ` [PATCH v2 07/15] gen: add gen IP parsing Ronan Randles
2022-01-21 10:31   ` [PATCH v2 08/15] examples/generator: import code from basicfwd.c Ronan Randles
2022-01-21 10:31   ` [PATCH v2 09/15] examples/generator: enable gen library for traffic gen Ronan Randles
2022-01-21 10:31   ` [PATCH v2 10/15] examples/generator: telemetry support Ronan Randles
2022-01-21 10:31   ` [PATCH v2 11/15] examples/generator: link status check added Ronan Randles
2022-01-21 10:31   ` [PATCH v2 12/15] examples/generator: line rate limiting Ronan Randles
2022-01-21 10:31   ` [PATCH v2 13/15] gen: add UDP support Ronan Randles
2022-01-21 10:31   ` [PATCH v2 14/15] net/vxlan: instance flag endianness refactored Ronan Randles
2022-01-21 10:31   ` [PATCH v2 15/15] gen: add VXLAN support Ronan Randles
2022-01-21 14:44 ` [PATCH 00/12] add packet generator library and example app Xueming(Steven) Li
2022-01-21 15:24   ` Van Haaren, Harry
2022-01-24 10:48     ` Ananyev, Konstantin

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