[PATCH] dmaengine: idxd: set max_xfer and max_batch for RO device

[PATCH] dmaengine: idxd: set max_xfer and max_batch for RO device

[Dave Jiang]

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: Dave Jiang <dave.jiang@intel.com>
---
 drivers/dma/idxd/device.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index f652da6ab47d..95c8c7d8d419 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -1018,6 +1018,9 @@ 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]);

Re: [PATCH] dmaengine: idxd: set max_xfer and max_batch for RO device

[Vinod Koul]

On 11-04-22, 15:11, Dave Jiang wrote:
> 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.

Applied, thanks

> 
> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
> ---
>  drivers/dma/idxd/device.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
> index f652da6ab47d..95c8c7d8d419 100644
> --- a/drivers/dma/idxd/device.c
> +++ b/drivers/dma/idxd/device.c
> @@ -1018,6 +1018,9 @@ 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]);
> 

-- 
~Vinod