From: Leon Romanovsky <leon@kernel.org>
To: Geetha sowjanya <gakula@marvell.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net,
edumazet@google.com, sbhatta@marvell.com, hkelam@marvell.com,
sgoutham@marvell.com
Subject: Re: [PATCH net] octeontx2-af: Fix QMEM struct memory allocation
Date: Tue, 3 Jan 2023 12:05:51 +0200 [thread overview]
Message-ID: <Y7P9/7nlpH9TXcld@unreal> (raw)
In-Reply-To: <20230103040917.16151-1-gakula@marvell.com>
On Tue, Jan 03, 2023 at 09:39:17AM +0530, Geetha sowjanya wrote:
> Currently NIX, NPA queue context memory is being allocated using
> GFP_KERNEL flag which inturns allocates from memory reserved for
> CMA_DMA. Sizing CMA_DMA memory is getting difficult due to this
> dependency, the more number of interfaces enabled the more the
> CMA_DMA memory requirement.
>
> To address this issue, GFP_KERNEL flag is replaced with GFP_ATOMIC,
> with this memory will be allocated from unreserved memory.
No, GFP_ATOMIC is for memory allocations in atomic context and not for
separation between reserved and unreserved memory.
There is no any explanation to use GFP_ATOMIC except being in atomic
context.
Thanks
next prev parent reply other threads:[~2023-01-03 10:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-03 4:09 [PATCH net] octeontx2-af: Fix QMEM struct memory allocation Geetha sowjanya
2023-01-03 9:00 ` Pavan Chebbi
2023-01-03 10:05 ` Leon Romanovsky [this message]
2023-01-04 3:13 ` Jakub Kicinski
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=Y7P9/7nlpH9TXcld@unreal \
--to=leon@kernel.org \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=gakula@marvell.com \
--cc=hkelam@marvell.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=sbhatta@marvell.com \
--cc=sgoutham@marvell.com \
/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).