Changes and New Features

Core

3832246

Show SF Device IRQs

[ConnectX-5 and above that support SFs, AFAIR] Added IRQs directory inside SF SYSFS directory. This allows users to know the mapping of SFs and their IRQs.

N/A

N/A

3807493

Configurable SF EQs

[BlueField-2 and above and ConnectX-6 and above] Added support for setting a maximum number of completion EQs for SFs. It allows the user to set the number of queues for an SF.

Devlink

xx.42.1000

NetDev

3639446

Support Lightweight EQ

[BlueField-3] Page EQ is not created, and no BOOT/INIT pages are allocated for non-page supplier functions. Optimize RDMA driver initialization by delaying QPs and the corresponding CQs creation. Re-implement write combining test with SQ, and optimize for SF by reading the result from its parent PF.

N/A

xx.41.0270

3612469

Support Hardware GRO

[ConnectX-7] Added support for Hardware GRO. Hardware GRO reduces CPU overhead and improves throughput.

N/A

28.41.1000

RDMA

3910418

Expose req_transport_retries_exceeded Counter

[All HCAs] Added support for exposing req_transport_retries_exceeded counter (per QP counter). It can be seen using the RDMA statistics and it shows the number of times the requester detected transport retries exceed error.

N/A

N/A

3845636

Support Up to 23 Bits for uar_page_index in create_cq Flow

[ ConnectX-7 ] Added support for allowing users to perform create_cq with a uar_page_index larger than 2^16 as supported by the hardware/firmware.

rdma-core 53.0

N/A

VDPA

3861923

Pre-create Hardware VQs at Device Creation Time

[ConnectX-6 Dx, ConnectX-7, BlueField-3] Added support for pre-creating the VQs at device creation time. This improves the downtime for the Live Migration process.

N/A

22.41.1000