> > We are hitting SQ overflow on iSER target side with high block sizes over RoCE
> > (see dmesg output below).
> >
> > We are using Q-Logic/Cavium NIC with a capability of 4 sges.
>
> That's somewhat expected if the device has low max_sge. It was decided
> that queue_full mechanism is not something that iser-target should
> handle but rather the iscsi-target core on top.
>
> You probably should not get into aborts though... Does the I/O complete?
> or does it fail?
The IOs complete
>
> Is this upstream? is [1] applied?
>
> I could come up with some queue-full handling in isert that will be more
> lightweight, but I'd let Nic make a judgment call before I do anything.
>
> [1]:
> commit a4467018c2a7228f4ef58051f0511bd037bff264
> Author: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
> Date: Sun Oct 30 17:30:08 2016 -0700
>
> iscsi-target: Propigate queue_data_in + queue_status errors
>
Yes, the patch is applied.
Thanks,
Ram
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