unable to create QP after set HUGE_RC to y

Infrastructure & Networking Software And Drivers Mellanox OFED
1

Hi,

I had a problem since I set HUGE_RC to y in order for HCA to use huge pages for QP and CQ. It shows up the following error message:

Unable to create QP.

Couldn’t create IB resources

After I remove the environment variable, it works fine again. On my system, I have huge pages of 1GB in size, and the OS reserves 8 such pages.

I am using ConnextX-3 with mlx4_0.

I am wondering what could be the cause for such errors.

Thanks in advance,

Sam

2

Sam,

Could you try upgrading to MLNX_OFED 3.1 to see if it resolves this problem.

http://www.mellanox.com/page/products_dyn?product_family=26 http://www.mellanox.com/page/products_dyn?product_family=26

3

Could you try set these variables and run test again

export MLX_QP_ALLOC_TYPE=HUGE

export MLX_CP_ALLOC_TYPE=HUGE

4

Hi,

The firmware version is 2.33.5000, and the driver version is OFED-2.4-1.0.0

Thank you,

5

Hi,

Thank you for replying.

I tried to set the above mentioned variables, but it still shows the same error messages.

I guess you mean MLX_CQ_ALLOC_TYPE instead of MLX_CP_ALLOC_TYPE.

I am running simple commands such as, ib_send_bw or ib_send_lat. Those commands work fine without

setting those environmental variables, but error messages show up as soon as environmental variables are

set.

Thank you,

Sam

6

What firmware and driver are you using?