Re: IBV_WR_SEND_WITH_IMM failure

Hi Xavier.

On Tue, Oct 16, 2012 at 8:13 PM, Xavier Guérin [off-list ref] wrote:

Hello list,

I am having a puzzling error with IBV_WR_SEND_WITH_IMM. Polling fails
with IBV_WC_RETRY_EXC_ERR when I use buffer bigger that 1KB.
Send/Receive buffers are of a larger size and properly registered.

This completion status means that the remote QP didn't send any ack/nack.
If this is your first message, then this means that the connection was
established in the wrong way. If this isn't the first message, the
remote QP stopped being available (QP was destroyed/moved to reset or
error state or the remote application completely ended).

Incidentally, it fails when exceeding the MTU size of my device, a
Connect-X 3 VPI configured as 10Gb/s RoCE.

What happens if you configures the QPs MTU to be 1KB in both sides?


Dotan
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