Commit 23084545 authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
Browse files

dmaengine: idxd: set max_xfer and max_batch for RO device 



Load the max_xfer_size and max_batch_size values from the values read from
registers to the shadow variables. This will allow the read-only device to
display the correct values for the sysfs attributes.

Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164971507673.2201761.11244446608988838897.stgit@djiang5-desk3.ch.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 4e5a4eb2

drivers/dma/idxd/device.c

+3 −0
Original line number Diff line number Diff line
@@ -1031,6 +1031,9 @@ static int idxd_wq_load_config(struct idxd_wq *wq) 


	wq->priority = wq->wqcfg->priority;



	wq->max_xfer_bytes = 1ULL << wq->wqcfg->max_xfer_shift;

	wq->max_batch_size = 1ULL << wq->wqcfg->max_batch_shift;



	for (i = 0; i < WQCFG_STRIDES(idxd); i++) {

		wqcfg_offset = WQCFG_OFFSET(idxd, wq->id, i);

		dev_dbg(dev, "WQ[%d][%d][%#x]: %#x\n", wq->id, i, wqcfg_offset, wq->wqcfg->bits[i]);