From: Jason Gunthorpe <jgg@ziepe.ca>
To: Konstantin Taranov <kotaranov@linux.microsoft.com>
Cc: kotaranov@microsoft.com, shirazsaleem@microsoft.com,
longli@microsoft.com, leon@kernel.org,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH rdma-next v2 1/1] RDMA/mana_ib: return PD number to the user
Date: Thu, 5 Feb 2026 10:22:12 -0400 [thread overview]
Message-ID: <20260205142212.GL2328995@ziepe.ca> (raw)
In-Reply-To: <20260205121354.925515-1-kotaranov@linux.microsoft.com>
On Thu, Feb 05, 2026 at 04:13:54AM -0800, Konstantin Taranov wrote:
> From: Konstantin Taranov <kotaranov@microsoft.com>
>
> Implement returning to userspace applications PDNs of created PDs.
> The PDN is used by applications that build work requests outside of the
> rdma-core code base. The PDN is used to build work requests that require
> additional PD isolation checks. The requests can fit only 16 bit PDNs.
> Allow users to request short PDNs which are 16 bits.
What?
PDN is protected information it should never be given to the HW
directly from userspace.
How can this possibly be secure?
Jason
next prev parent reply other threads:[~2026-02-05 14:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 12:13 Konstantin Taranov
2026-02-05 14:22 ` Jason Gunthorpe [this message]
2026-02-05 16:35 ` Konstantin Taranov
2026-02-05 17:25 ` Jason Gunthorpe
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