This patch set from Bodong is the supplementary part of the kernel series that
was accepted upstream into 4.10.
Packet pacing is a feature to control packet injection rate in arbitrary rates.
One typical use case is for streaming vendors to control the bandwidth of
different customers based on service coverage.
Packet pacing is a rate limiting and shaping for a QP (SQ for RAW QP), set and
change the rate is done by modifying QP.
This series made the following high level changes:
1. Report rate limit capabilities, it includes:
- The maximum and minimum rate limit in kbps supported
by packet pacing.
- Bitmap showing which QP types are supported by packet pacing operation.
2. Use the extended uverbs command for modify QP to add rate limit support.
3. Add support in mlx5 provider.
Pull request was sent:
https://github.com/linux-rdma/rdma-core/pull/51
Yishai
Bodong Wang (3):
ibverbs: Report packet pacing capabilities when querying device
ibverbs: Add support for packet pacing
mlx5: Add packet pacing support
libibverbs/cmd.c | 55 ++++++++++++++++++++++++++++++++----
libibverbs/driver.h | 5 ++++
libibverbs/examples/devinfo.c | 21 ++++++++++++++
libibverbs/kern-abi.h | 27 +++++++++++++++---
libibverbs/libibverbs.map | 5 ++++
libibverbs/man/ibv_modify_qp.3 | 2 ++
libibverbs/man/ibv_query_device_ex.3 | 7 +++++
libibverbs/verbs.h | 11 +++++++-
providers/mlx5/mlx5-abi.h | 2 ++
providers/mlx5/verbs.c | 20 +++++++++++--
10 files changed, 143 insertions(+), 12 deletions(-)
--
1.8.3.1
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