Hi all,
I have some confusion with mlx5 sub function feature. I tested it
with Mellanox ConnectX-6 Dx recently,
then I found the maximum amount of SF in each PF is just 128, I‘m not
sure if there is a problem with
my configuration, or there are some limits of SF in ConnectX-6.
Here is the environment:
system: CentOS Linux release 7.9.2009
NIC: Mellanox Technologies MT2892 Family
[ConnectX-6 Dx]
firmware-version: 22.29.2002 (MT_0000000430)
kernel: net-next master branch
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/
mlxconfig:
PF_BAR2_ENABLE True(1)
PF_BAR2_SIZE 8
PER_PF_NUM_SF True(1)
PF_TOTAL_SF 65535
PF_SF_BAR_SIZE 0
When I tried to create more SF:
~# devlink port add pci/0000:b3:00.0 flavour pcisf pfnum 0 sfnum 128
devlink answers: No space left on device
Is there anything missed in configuration? Can I create more sub
functions in ConnectX-6?
Trully yours,
avis
