Cannot Connect NVMeoF At Certain NR_IO_Queues Values

[Max Gurtovoy]

On 5/15/2018 2:09 AM, Gruher, Joseph R wrote:
>> IMO this issue was fixed in mlx5_core function mlx5_get_vector_affinity.
>> It was a long discussion regarding this fix and it will be fixed again in 4.17. After
>> the final fix, it should go to stable kernel as well.
> 
> Thanks Max.  So current 4.17-rc5 has a fix now?  Or fix is not in yet?

The latest fix is not there. SaeedM should push it this week.

> 
>> Meanwhile I can suggest a fast workaround for you if needed (or other
>> solutions as well):
>> diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index
>> 0f840ec..dd92cb9 100644
>> --- a/drivers/nvme/host/rdma.c
>> +++ b/drivers/nvme/host/rdma.c
>> @@ -2236,7 +2236,7 @@ static int nvme_rdma_map_queues(struct
>> blk_mq_tag_set *set)
>>           .init_hctx      = nvme_rdma_init_hctx,
>>           .poll           = nvme_rdma_poll,
>>           .timeout        = nvme_rdma_timeout,
>> -       .map_queues     = nvme_rdma_map_queues,
>>    };
> 
> Thanks, I'll give this a shot.
> 

Great.