Re: [PATCH 09/17] RDMA/mlx5: Implement mlx5_ib_map_mr_sg_pi and mlx5_ib_alloc_mr_integrity

Subject: Re: [PATCH 09/17] RDMA/mlx5: Implement mlx5_ib_map_mr_sg_pi and mlx5_ib_alloc_mr_integrity
From: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Date: Thu, 7 Mar 2019 19:09:25 +0200
Cc: <israelr@xxxxxxxxxxxx>, <idanb@xxxxxxxxxxxx>, <vladimirk@xxxxxxxxxxxx>, <shlomin@xxxxxxxxxxxx>, <oren@xxxxxxxxxxxx>
In-reply-to: <4821b635-3c4b-955a-bc28-3a43c57510f3@grimberg.me>
References: <1549560811-8655-1-git-send-email-maxg@mellanox.com> <1549560811-8655-10-git-send-email-maxg@mellanox.com> <4821b635-3c4b-955a-bc28-3a43c57510f3@grimberg.me>
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On 2/7/2019 8:21 PM, Sagi Grimberg wrote:

btw, have you considered using the dma lkey for single entry data and
pi? Would probably save the overhead of posting a second UMR for

4K workloads.

Good idea, we'll address perf improvements during the NVMEoF/RDMA hostmetadata submission.

References:
- [PATCH 00/17 V2] Introduce new API for T10-PI offload
  - From: Max Gurtovoy
- [PATCH 09/17] RDMA/mlx5: Implement mlx5_ib_map_mr_sg_pi and mlx5_ib_alloc_mr_integrity
  - From: Max Gurtovoy
- Re: [PATCH 09/17] RDMA/mlx5: Implement mlx5_ib_map_mr_sg_pi and mlx5_ib_alloc_mr_integrity
  - From: Sagi Grimberg