From: Jason Gunthorpe <jgg@mellanox.com>
To: Max Gurtovoy <maxg@mellanox.com>
Cc: dledford@redhat.com, leon@kernel.org, galpress@amazon.com,
dennis.dalessandro@intel.com, netdev@vger.kernel.org,
sagi@grimberg.me, linux-rdma@vger.kernel.org, bvanassche@acm.org,
santosh.shilimkar@oracle.com, tom@talpey.com,
aron.silverton@oracle.com, israelr@mellanox.com,
oren@mellanox.com, shlomin@mellanox.com, vladimirk@mellanox.com
Subject: Re: [PATCH 0/9 v2] Remove FMR support from RDMA drivers
Date: Wed, 27 May 2020 22:06:15 -0300 [thread overview]
Message-ID: <20200528010615.GD24561@mellanox.com> (raw)
In-Reply-To: <20200527094634.24240-1-maxg@mellanox.com>
On Wed, May 27, 2020 at 12:46:25PM +0300, Max Gurtovoy wrote:
> This series removes the support for FMR mode to register memory. This ancient
> mode is unsafe (rkeys that are usually exposed for caching purposes and the API
> is limited to page granularity mappings) and not maintained/tested in the last
> few years. It also doesn't have any reasonable advantage over other memory
> registration methods such as FRWR (that is implemented in all the recent RDMA
> adapters). This series should be reviewed and approved by the maintainer of the
> effected drivers and I suggest to test it as well.
>
> The tests that I made for this series (fio benchmarks and fio verify data):
> 1. iSER initiator on ConnectX-4
> 2. iSER initiator on ConnectX-3
> 3. SRP initiator on ConnectX-4 (loopback to SRP target)
> 4. SRP initiator on ConnectX-3
I looked at this for a bit, and it seems like there is still a fair
amount more to remove, I came up with this:
https://github.com/jgunthorpe/linux/commits/for_max
Can you check?
Thanks
Jason
prev parent reply other threads:[~2020-05-28 1:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 9:46 [PATCH 0/9 v2] Remove FMR support from RDMA drivers Max Gurtovoy
2020-05-27 9:46 ` [PATCH 1/9] RDMA/mlx5: Remove FMR leftovers Max Gurtovoy
2020-05-27 13:58 ` Leon Romanovsky
2020-05-27 9:46 ` [PATCH 2/9] RDMA/mlx4: remove FMR support for memory registration Max Gurtovoy
2020-05-27 14:03 ` Leon Romanovsky
2020-05-27 9:46 ` [PATCH 3/9] RDMA/rds: " Max Gurtovoy
2020-05-27 9:46 ` [PATCH 4/9] RDMA/mthca: " Max Gurtovoy
2020-05-27 9:46 ` [PATCH 5/9] RDMA/rdmavt: remove FMR " Max Gurtovoy
2020-05-27 15:56 ` Dennis Dalessandro
2020-05-27 9:46 ` [PATCH 6/9] RDMA/iser: Remove support for " Max Gurtovoy
2020-05-27 9:46 ` [PATCH 7/9] RDMA/srp: remove " Max Gurtovoy
2020-05-27 9:46 ` [PATCH 8/9] RDMA/core: remove FMR pool API Max Gurtovoy
2020-05-27 9:46 ` [PATCH 9/9] RDMA/core: remove FMR device ops Max Gurtovoy
2020-05-28 1:06 ` Jason Gunthorpe [this message]
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