From: Jason Gunthorpe <jgg@nvidia.com>
To: Yonatan Nachum <ynachum@amazon.com>
Cc: leon@kernel.org, linux-rdma@vger.kernel.org, mrgolin@amazon.com,
sleybo@amazon.com, matua@amazon.com, gal.pressman@linux.dev
Subject: Re: [PATCH for-rc] RDMA/efa: Validate SQ ring size against max LLQ size
Date: Mon, 1 Jun 2026 21:30:05 -0300 [thread overview]
Message-ID: <20260602003005.GA648279@nvidia.com> (raw)
In-Reply-To: <20260526081536.1203553-1-ynachum@amazon.com>
On Tue, May 26, 2026 at 08:15:36AM +0000, Yonatan Nachum wrote:
> Validate the SQ ring size against the device's max LLQ size. This
> ensures that when using 128-byte WQEs, userspace cannot exceed the queue
> limits.
>
> On create QP, userspace provides the SQ ring size (depth x WQE size)
> which is validated against the max LLQ size.
>
> Fixes: 40909f664d27 ("RDMA/efa: Add EFA verbs implementation")
> Reviewed-by: Michael Margolin <mrgolin@amazon.com>
> Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
> ---
> drivers/infiniband/hw/efa/efa_verbs.c | 27 ++++++++++++++++++---------
> 1 file changed, 18 insertions(+), 9 deletions(-)
The Sashiko comments look like they are worth addressing
https://sashiko.dev/#/patchset/20260517175216.614494-1-ynachum%40amazon.com
Jason
next prev parent reply other threads:[~2026-06-02 0:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-26 8:15 [PATCH for-rc] RDMA/efa: Validate SQ ring size against max LLQ size Yonatan Nachum
2026-06-01 9:16 ` Yonatan Nachum
2026-06-02 0:30 ` Jason Gunthorpe [this message]
2026-06-02 6:51 ` [PATCH for-rc] RDMA/efa: Validate SQ ring size against max LLQ sizey Yonatan Nachum
2026-06-02 18:01 ` Jason Gunthorpe
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