For devices that can register page list that is bigger than
USHRT_MAX, we actually take the wrong value for sg_tablesize.
E.g: for CX4 max_fast_reg_page_list_len is 65536 (bigger than USHRT_MAX)
so we set sg_tablesize to 0 by mistake. Therefore, each IO that is
bigger than 4k splitted to "< 4k" chunks that cause performance degredation.
Remove wrong sg_tablesize assignment, and use the value that was set during
address resolution handler with the needed casting.
Fixes: 911f4331bc87 ("IB/mlx5: Expose correct max_fast_reg_page_list_len")
That's not correct, the patch was a fix which exposed a bug in iser
that was broken anyway. Let's remove it.
Other than that, looks good,
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
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