The following are the changes and/or new features that have been added to this version of MLNX_OFED.
|
HCAs |
Feature/Change |
Description |
|
ConnectX-5 |
VFs per PF |
Increased the amount of maximum virtual functions (VF) that can be allocated to a physical function (PF) to 127 VF. |
|
ConnectX-4/ ConnectX-4 Lx/ConnectX-5 |
SW-Defined UDP Source Port for RoCE v2 |
UDP source port for RoCE v2 packets is now calculated by the driver rather than the firmware, achieving better distribution and less congestion. This mechanism works for RDMA- CM QPs only, and ensures that RDMA connection messages and data messages have the same UDP source port value. |
|
mlx5 Driver |
Local Loopback Disable |
Added the ability to manually disable Local Loopback regardless of the number of open user-space transport domains. |
|
ConnectX-6 |
Adapter Cards |
Added support for ConnectX-6 Ready. For further information, please contact Mellanox Support. |
|
All |
NEO-Host |
Integrated NEO-Host for orchestration and management of host networking into MLNX_OFED package. |
|
Bug Fixes |
See “Bug Fixes" section. |
For additional information on the new features, please refer to MLNX_OFED User Manual.
Note that the following APIs are deprecated and replaced with the new APIs as of MLNX-OFED version 4.0, as listed in the table below.
|
Feature |
Type |
Current API |
New API |
|
Rereg MR |
Verb |
ibv_exp_rereg_mr |
ibv_rereg_mr |
|
Memory Window |
Verb |
ibv_exp_bind_mw |
ibv_bind_mw |
|
Structure |
ibv_exp_send_wr -> bind_mw |
ibv_send_wr -> bind_mw |
|
|
Opcodes |
IBV_EXP_WR_SEND_WITH_INV |
IBV_WR_SEND_WITH_INV |
|
|
IBV_EXP_WR_LOCAL_INV |
IBV_WR_LOCAL_INV |
||
|
IBV_EXP_WR_BIND_MW |
IBV_WR_BIND_MW |
||
|
Capability |
IBV_EXP_DEVICE_MEM_WIN- DOW |
IBV_DEVICE_MEM_WIN- DOW |
|
|
Completion |
IBV_EXP_WC_WITH_INV |
IBV_WC_WITH_INV |
The following are the unsupported functionalities/features/HCAs in MLNX_OFED:
ConnectX®-2 Adapter Card
Relational Database Service (RDS)
Ethernet over InfiniBand (EoIB) - mlx4_vnic
mthca InfiniBand driver