efct_hw_reqtag_alloc
wqcb = efct_hw_reqtag_alloc(hw, efct_hw_wq_process_abort, io_to_abort);
ctx->wqcb = efct_hw_reqtag_alloc(hw, callback, arg);
wqcb = efct_hw_reqtag_alloc(hw, efct_hw_wq_process_io, io);
*efct_hw_reqtag_alloc(struct efct_hw *hw,