On Tue, Jun 30, 2015 at 1:45 PM, Sebastian Ott
[off-list ref] wrote:

after the latest mellanox update the mlx4 driver fails to probe a VF:
[   88.909562] mlx4_core 0000:00:00.0: mlx4_allocate_default_counters: failed to allocate default counter port 1 err -22
[   88.909564] mlx4_core 0000:00:00.0: Failed to allocate default counters, aborting
[   88.961735] mlx4_core: probe of 0000:00:00.0 failed with error -22

PFs still work. See below for more dmesg output - I also added a line of
debug output...maybe this helps.

Can you please send your "lspci | grep nox" listing? also what
Firmware version you have there? e.g when you probe the PF with
mlx4_core debug_level=1 can you sens us the lines that follow the PF
probe, e.g as here + dump of all caps as you did for the VF

  952.367911] mlx4_core: Mellanox ConnectX core driver v2.2-1 (Feb, 2014)
[  952.374606] mlx4_core: Initializing 0000:06:00.0
[  953.384332] mlx4_core 0000:06:00.0: FW version 2.34.5000 (cmd intf
rev 3), max commands 16
[...]

Also send us the output of "dmesg | grep -i counter" after such verbose load.

thanks,

Or.