[lustre-devel] [PATCH 00/10] lustre: lnet: fixes for non-x86 systems

[NeilBrown]

On Sun, Oct 14 2018, James Simmons wrote:

> These are the required patches to make LNet work with non-x86
> platforms like ARM or Power8. The tunables map_on_demand and
> concurrent_sends assumed pages were 4K in size which is not
> correct. Massively reworked to basically defunct those tunables.
> Also the size of the LNet packet was always 256 pages but when
> the page size is 64K like some ARM or Power8 systems the maximum
> LNet message sent was 16MB not 1MB which is what is expected.
> Fixing up the RDMA handling in the ko2iblnd driver also resolved
> some performance issues.

Thanks.
I've applied this series, but I've still suspicious of that little
section in patch 3.
I hope that can be clarified, or fixed, before I feel the need to  move
the series from 'lustre-testing' to 'lustre'.

Thanks,
NeilBrown


>
> Alexey Lyashkov (1):
>   lustre: lnd: use less CQ entries for each connection
>
> Amir Shehata (6):
>   lustre: lnd: set device capabilities
>   lustre: o2iblnd: use IB_MR_TYPE_SG_GAPS
>   lustre: lnd: rework map_on_demand behavior
>   lustre: lnd: calculate qp max_send_wrs properly
>   lustre: lnd: remove concurrent_sends tunable
>   lustre: lnd: correct WR fast reg accounting
>
> Dmitry Eremin (1):
>   lustre: o2iblnd: limit cap.max_send_wr for MLX5
>
> James Simmons (1):
>   lustre: lnet: make LNET_MAX_IOV dependent on page size
>
> John L. Hammond (1):
>   lustre: o2ib: use splice in kiblnd_peer_connect_failed()
>
>  .../staging/lustre/include/linux/lnet/lib-types.h  |  10 +-
>  .../lustre/include/uapi/linux/lnet/lnet-types.h    |   3 -
>  drivers/staging/lustre/lnet/Kconfig                |  10 --
>  .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c    | 138 +++++++++++++++------
>  .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h    |  68 +++-------
>  .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 133 ++++++++++++++------
>  .../lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c  |  85 ++++++-------
>  drivers/staging/lustre/lustre/include/lustre_net.h |   1 +
>  8 files changed, 256 insertions(+), 192 deletions(-)
>
> -- 
> 1.8.3.1
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