DPDK patches and discussions
 help / color / mirror / Atom feed
From: santosh <santosh.shukla@caviumnetworks.com>
To: Olivier MATZ <olivier.matz@6wind.com>
Cc: dev@dpdk.org, thomas@monjalon.net,
	jerin.jacob@caviumnetworks.com, hemant.agrawal@nxp.com
Subject: Re: [dpdk-dev] [PATCH v4 2/7] mempool: add mempool arg in xmem size and usage
Date: Mon, 4 Sep 2017 20:28:36 +0530	[thread overview]
Message-ID: <3d57f862-4005-79e7-4732-ae03dd0b6399@caviumnetworks.com> (raw)
In-Reply-To: <20170904144636.7kot5gcvpv3w5k4a@neon>


On Monday 04 September 2017 08:16 PM, Olivier MATZ wrote:
> On Mon, Sep 04, 2017 at 08:03:53PM +0530, santosh wrote:
>>
>> On Monday 04 September 2017 07:52 PM, Olivier MATZ wrote:
>>> On Tue, Aug 15, 2017 at 11:37:38AM +0530, Santosh Shukla wrote:
>>>> xmem_size and xmem_usage need to know the status of mp->flag.
>>>> Following patch will make use of that.
>>>>
>>>> Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
>>>> ---
>>>>  drivers/net/xenvirt/rte_mempool_gntalloc.c |  5 +++--
>>>>  lib/librte_mempool/rte_mempool.c           | 10 ++++++----
>>>>  lib/librte_mempool/rte_mempool.h           |  8 ++++++--
>>>>  test/test/test_mempool.c                   |  4 ++--
>>>>  4 files changed, 17 insertions(+), 10 deletions(-)
>>>>
>>>> diff --git a/drivers/net/xenvirt/rte_mempool_gntalloc.c b/drivers/net/xenvirt/rte_mempool_gntalloc.c
>>>> index 73e82f808..ee0bda459 100644
>>>> --- a/drivers/net/xenvirt/rte_mempool_gntalloc.c
>>>> +++ b/drivers/net/xenvirt/rte_mempool_gntalloc.c
>>>> @@ -114,7 +114,7 @@ _create_mempool(const char *name, unsigned elt_num, unsigned elt_size,
>>>>  	pg_shift = rte_bsf32(pg_sz);
>>>>  
>>>>  	rte_mempool_calc_obj_size(elt_size, flags, &objsz);
>>>> -	sz = rte_mempool_xmem_size(elt_num, objsz.total_size, pg_shift);
>>>> +	sz = rte_mempool_xmem_size(elt_num, objsz.total_size, pg_shift, NULL);
>>>>  	pg_num = sz >> pg_shift;
>>>>  
>>>>  	pa_arr = calloc(pg_num, sizeof(pa_arr[0]));
>>> What is the meaning of passing NULL to rte_mempool_xmem_size()?
>>> Does it mean that flags are ignored?
>> Yes that mean flags are ignored.
> But the flags change the return value of rte_mempool_xmem_size(), right?

no, It won't change.

> So, correct me if I'm wrong, but if we don't pass the proper flags, the
> returned value won't be the one we expect.

passing flag value other than MEMPOOL_F_POOL_BLK_SZ_ALIGNED, wont impact return value.

>>> Wouldn't it be better to pass the mempool flags instead of the mempool
>>> pointer?
>> Keeping mempool as param rather flag useful in case user want to do/refer more
>> thing in future for xmem_size/usage() api. Otherwise he has append one more param
>> to api and send out deprecation notice.. Btw, its const param so won;t hurt right?
>>
>> However if you still want to restrict param to mp->flags then pl. suggest.
>>
>> Thanks. 
>>
>>

  reply	other threads:[~2017-09-04 14:58 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-21 17:32 [dpdk-dev] [PATCH 0/4] Infrastructure to support octeontx HW mempool manager Santosh Shukla
2017-06-21 17:32 ` [dpdk-dev] [PATCH 1/4] mempool: get the external mempool capability Santosh Shukla
2017-07-03 16:37   ` Olivier Matz
2017-07-05  6:41     ` santosh
2017-07-10 13:55       ` Olivier Matz
2017-07-10 16:09         ` santosh
2017-06-21 17:32 ` [dpdk-dev] [PATCH 2/4] mempool: detect physical contiguous object in pool Santosh Shukla
2017-07-03 16:37   ` Olivier Matz
2017-07-05  7:07     ` santosh
2017-06-21 17:32 ` [dpdk-dev] [PATCH 3/4] mempool: introduce block size align flag Santosh Shukla
2017-07-03 16:37   ` Olivier Matz
2017-07-05  7:35     ` santosh
2017-07-10 13:15       ` Olivier Matz
2017-07-10 16:22         ` santosh
2017-06-21 17:32 ` [dpdk-dev] [PATCH 4/4] mempool: update range info to pool Santosh Shukla
2017-07-13  9:32 ` [dpdk-dev] [PATCH v2 0/6] Infrastructure to support octeontx HW mempool manager Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 1/6] mempool: fix flags data type Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 2/6] mempool: get the mempool capability Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 3/6] mempool: detect physical contiguous object in pool Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 4/6] mempool: add mempool arg in xmem size and usage Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 5/6] mempool: introduce block size align flag Santosh Shukla
2017-07-13  9:32   ` [dpdk-dev] [PATCH v2 6/6] mempool: update range info to pool Santosh Shukla
2017-07-18  6:07   ` [dpdk-dev] [PATCH v2 0/6] Infrastructure to support octeontx HW mempool manager santosh
2017-07-20 13:47   ` [dpdk-dev] [PATCH v3 " Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 1/6] mempool: fix flags data type Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 2/6] mempool: get the mempool capability Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 3/6] mempool: detect physical contiguous object in pool Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 4/6] mempool: add mempool arg in xmem size and usage Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 5/6] mempool: introduce block size align flag Santosh Shukla
2017-07-20 13:47     ` [dpdk-dev] [PATCH v3 6/6] mempool: update range info to pool Santosh Shukla
2017-08-15  6:07     ` [dpdk-dev] [PATCH v4 0/7] Infrastructure to support octeontx HW mempool manager Santosh Shukla
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 1/7] mempool: fix flags data type Santosh Shukla
2017-09-04 14:11         ` Olivier MATZ
2017-09-04 14:18           ` santosh
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 2/7] mempool: add mempool arg in xmem size and usage Santosh Shukla
2017-09-04 14:22         ` Olivier MATZ
2017-09-04 14:33           ` santosh
2017-09-04 14:46             ` Olivier MATZ
2017-09-04 14:58               ` santosh [this message]
2017-09-04 15:23                 ` Olivier MATZ
2017-09-04 15:52                   ` santosh
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 3/7] doc: remove mempool api change notice Santosh Shukla
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 4/7] mempool: get the mempool capability Santosh Shukla
2017-09-04 14:32         ` Olivier MATZ
2017-09-04 14:44           ` santosh
2017-09-04 15:56             ` Olivier MATZ
2017-09-04 16:29               ` santosh
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 5/7] mempool: detect physical contiguous object in pool Santosh Shukla
2017-09-04 14:43         ` Olivier MATZ
2017-09-04 14:47           ` santosh
2017-09-04 16:00             ` Olivier MATZ
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 6/7] mempool: introduce block size align flag Santosh Shukla
2017-09-04 16:20         ` Olivier MATZ
2017-09-04 17:45           ` santosh
2017-09-07  7:27             ` Olivier MATZ
2017-09-07  7:37               ` santosh
2017-08-15  6:07       ` [dpdk-dev] [PATCH v4 7/7] mempool: update range info to pool Santosh Shukla
2017-09-06 11:28       ` [dpdk-dev] [PATCH v5 0/8] Infrastructure to support octeontx HW mempool manager Santosh Shukla
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 1/8] mempool: remove unused flags argument Santosh Shukla
2017-09-07  7:41           ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 2/8] mempool: change flags from int to unsigned int Santosh Shukla
2017-09-07  7:43           ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 3/8] mempool: add flags arg in xmem size and usage Santosh Shukla
2017-09-07  7:46           ` Olivier MATZ
2017-09-07  7:49             ` santosh
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 4/8] doc: remove mempool notice Santosh Shukla
2017-09-07  7:47           ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 5/8] mempool: get the mempool capability Santosh Shukla
2017-09-07  7:59           ` Olivier MATZ
2017-09-07  8:15             ` santosh
2017-09-07  8:39               ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 6/8] mempool: detect physical contiguous object in pool Santosh Shukla
2017-09-07  8:05           ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 7/8] mempool: introduce block size align flag Santosh Shukla
2017-09-07  8:13           ` Olivier MATZ
2017-09-07  8:27             ` santosh
2017-09-07  8:57               ` Olivier MATZ
2017-09-06 11:28         ` [dpdk-dev] [PATCH v5 8/8] mempool: update range info to pool Santosh Shukla
2017-09-07  8:30           ` Olivier MATZ
2017-09-07  8:56             ` santosh
2017-09-07  9:09               ` Olivier MATZ
2017-09-07 15:30         ` [dpdk-dev] [PATCH v6 0/8] Infrastructure to support octeontx HW mempool manager Santosh Shukla
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 1/8] mempool: remove unused flags argument Santosh Shukla
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 2/8] mempool: change flags from int to unsigned int Santosh Shukla
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 3/8] mempool: add flags arg in xmem size and usage Santosh Shukla
2017-09-25 11:24             ` Olivier MATZ
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 4/8] doc: remove mempool notice Santosh Shukla
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 5/8] mempool: get the mempool capability Santosh Shukla
2017-09-25 11:26             ` Olivier MATZ
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 6/8] mempool: detect physical contiguous object in pool Santosh Shukla
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 7/8] mempool: introduce block size align flag Santosh Shukla
2017-09-22 12:59             ` Hemant Agrawal
2017-09-25 11:32             ` Olivier MATZ
2017-09-25 22:08               ` santosh
2017-09-07 15:30           ` [dpdk-dev] [PATCH v6 8/8] mempool: notify memory area to pool Santosh Shukla
2017-09-25 11:41             ` Olivier MATZ
2017-09-25 22:18               ` santosh
2017-09-29  4:53                 ` santosh
2017-09-29  8:20                   ` Olivier MATZ
2017-09-29  8:25                     ` santosh
2017-09-13  9:58           ` [dpdk-dev] [PATCH v6 0/8] Infrastructure to support octeontx HW mempool manager santosh
2017-09-19  8:26             ` santosh
2017-10-01  9:28           ` [dpdk-dev] [PATCH v7 " Santosh Shukla
2017-10-01  9:28             ` [dpdk-dev] [PATCH v7 1/8] mempool: remove unused flags argument Santosh Shukla
2017-10-01  9:28             ` [dpdk-dev] [PATCH v7 2/8] mempool: change flags from int to unsigned int Santosh Shukla
2017-10-01  9:28             ` [dpdk-dev] [PATCH v7 3/8] mempool: add flags arg in xmem size and usage Santosh Shukla
2017-10-01  9:28             ` [dpdk-dev] [PATCH v7 4/8] doc: remove mempool notice Santosh Shukla
2017-10-01  9:28             ` [dpdk-dev] [PATCH v7 5/8] mempool: get the mempool capability Santosh Shukla
2017-10-01  9:29             ` [dpdk-dev] [PATCH v7 6/8] mempool: detect physical contiguous object in pool Santosh Shukla
2017-10-01  9:29             ` [dpdk-dev] [PATCH v7 7/8] mempool: introduce block size align flag Santosh Shukla
2017-10-02  8:35               ` santosh
2017-10-02 14:26               ` Olivier MATZ
2017-10-01  9:29             ` [dpdk-dev] [PATCH v7 8/8] mempool: notify memory area to pool Santosh Shukla
2017-10-02  8:36               ` santosh
2017-10-02 14:27               ` Olivier MATZ
2017-10-06 20:00             ` [dpdk-dev] [PATCH v7 0/8] Infrastructure to support octeontx HW mempool manager Thomas Monjalon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3d57f862-4005-79e7-4732-ae03dd0b6399@caviumnetworks.com \
    --to=santosh.shukla@caviumnetworks.com \
    --cc=dev@dpdk.org \
    --cc=hemant.agrawal@nxp.com \
    --cc=jerin.jacob@caviumnetworks.com \
    --cc=olivier.matz@6wind.com \
    --cc=thomas@monjalon.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).