From: Jason Gunthorpe <jgg@ziepe.ca>
To: Jacob Moroni <jmoroni@google.com>
Cc: "Czurylo, Krzysztof" <krzysztof.czurylo@intel.com>,
"Nikolova, Tatyana E" <tatyana.e.nikolova@intel.com>,
"leon@kernel.org" <leon@kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>
Subject: Re: [PATCH rdma-next] RDMA/irdma: Convert QP table to xarray
Date: Tue, 20 Jan 2026 14:58:30 -0400 [thread overview]
Message-ID: <20260120185830.GV961572@ziepe.ca> (raw)
In-Reply-To: <CAHYDg1QRh5dGd6B5C0N96PNkXzKguTNggQzFcbaw6PtCAPVTQQ@mail.gmail.com>
On Mon, Jan 19, 2026 at 10:56:26AM -0500, Jacob Moroni wrote:
> > Finally, the xarray was intended to replace radix tree. This is not
> > a vector-like (dynamically resized array) data structure.
> > Not sure if this is the right application for it.
xarray is an appropriate data structure for any kind of dynamic array
that has good clustering of values. Probably matches this well.
> It's just really easy to drop in place of the existing array for cases like this
> where the array is being used as an ID->pointer map and the IDs need
> to remain consistent for the object. It seems to be the go-to for many RDMA
> drivers.
I would certainly expect drivers to use xarray instead of allocating
their max possible ID tracking spaces.
That said someone from intel needs to ack this..
Jason
prev parent reply other threads:[~2026-01-20 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-18 1:25 [PATCH rdma-next] RDMA/irdma: Convert QP table to xarray Jacob Moroni
2026-01-19 12:53 ` Czurylo, Krzysztof
2026-01-19 15:56 ` Jacob Moroni
2026-01-20 18:58 ` Jason Gunthorpe [this message]
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