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Message-Id: <200709180909.50029.jackm@dev.mellanox.co.il>
Date: Tue, 18 Sep 2007 09:09:49 +0200
From: Jack Morgenstein <jackm@....mellanox.co.il>
To: general@...ts.openfabrics.org
Cc: Roland Dreier <rdreier@...co.com>, linux-kernel@...r.kernel.org,
netdev@...r.kernel.org, tziporet@...lanox.co.il
Subject: Re: [ofa-general] InfiniBand/RDMA merge plans for 2.6.24
On Thursday 13 September 2007 20:57, Roland Dreier wrote:
> HW specific:
>
> - I already merged patches to enable MSI-X by default for mthca and
> mlx4. I hope there aren't too many systems that get hosed if a
> MSI-X interrupt is generated.
>
> - Jack and Michael's mlx4 FMR support. Will merge I guess, although
> I do hope to have time to address the DMA API abuse that is being
> copied from mthca, so that mlx4 and mthca work in Xen domU.
>
> - ehca patch queue. Will merge, pending fixes for the few minor
> issues I commented on.
>
> - Steve's mthca router mode support. Would be nice to see a review
> from someone at Mellanox.
>
> - Arthur's mthca doorbell alignment fixes. I will experiment with a
> few different approaches and post what I like (and fix mlx4 as
> well). I hope Arthur can review.
>
> - Michael's mlx4 WQE shrinking patch. Not sure yet; I'll reply to
> the latest patch directly.
>
Missing from this list (IMPORTANT patch!):
[ofa-general] [PATCH 2 of 2] IB/mlx4: Handle new FW requirement for send request prefetching, for WQE sg lists
(Posted by me to list on Sept 4)
{patch header:
This is an addendum to Roland's commit 0e6e74162164d908edf7889ac66dca09e7505745
(June 18). This addendum adds prefetch headroom marking processing for s/g segments.
We write s/g segments in reverse order into the WQE, in order to guarantee
that the first dword of all cachelines containing s/g segments is written last
(overwriting the headroom invalidation pattern). The entire cacheline will thus
contain valid data when the invalidation pattern is overwritten.
}
This patch series (1 of 2 is for libmlx4, the same issue).
============================================================
Also, I'm now posting (in a separate post) the following patch to mlx4, which is important:
display the following device information via sysfs:
board_id, fw_ver, hw_rev, hca_type.
The info is displayed under directory /sys/class/infiniband/mlx4_x, where x is
the pci bus sequence number (starting from zero).
This patch makes information available to ibstat and ibv_devinfo under the
same directory as is used for tavor/arbel/sinai -- thus requiring no userspace
modifications.
- Jack
-
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