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Differential D32194

libmlx5: Report if kernel allows using MPW in SQ
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Authored by vag.singh_oneconvergence.com on Sep 28 2021, 1:58 PM.
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Details

Reviewers
kib
• hselasky
Summary

[PATCH 20/31] FreeBSD OFED support for DPDK MLX5 PMD

a) Use flag MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED to indicate hardware
supports multi packet WQE and it's enabled in SQ context.
Flag MLX5DV_CONTEXT_FLAGS_MPW is deprecated, shall not be used
in new applications.

b) Report if enhanced multi packet send WQE is supported through mlx5
direct verbs.

Test Plan

Tested on KVM, ESXi, and HyperV/Azure Hypervisors with FreeBSD 14.0-CURRENT and FreeBSD12.1-STABLE.

iperf
DPDK MLX5 PMD/testpmd

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rG FreeBSD src repository
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Event Timeline

vag.singh_oneconvergence.com requested review of this revision.Sep 28 2021, 1:58 PM
vag.singh_oneconvergence.com created this revision.

Revision Contents
Changeset List

PathSize
contrib/
ofed/
libmlx5/
6 lines
4 lines
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Diff 95851

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contrib/ofed/libmlx5/mlx5-abi.h

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contrib/ofed/libmlx5/mlx5.h

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contrib/ofed/libmlx5/mlx5.c

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contrib/ofed/libmlx5/mlx5dv.h

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contrib/ofed/libmlx5/mlx5dv_query_device.3

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contrib/ofed/libmlx5/verbs.c

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