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Commit 3377ffed authored by Hemant Kumar's avatar Hemant Kumar
Browse files

mhi: device: netdev: Add flag to track napi scheduling 



Flag is set to true when napi_schedule is called and false
when napi_complete is called. This helps to identify the
status of napi if a data stall is reported on downlink.

Change-Id: Id54340c0274da3120f21154c0774e035a61347a9
Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
parent fd8f045d

drivers/bus/mhi/devices/mhi_netdev.c

+8 −1
Original line number Diff line number Diff line
@@ -111,6 +111,7 @@ struct mhi_netdev { 


	/* debug stats */

	u32 abuffers, kbuffers, rbuffers;

	bool napi_scheduled;

};



struct mhi_netdev_priv {
@@ -451,6 +452,7 @@ static int mhi_netdev_alloc_thread(void *data) 


		/* replenish the ring */

		napi_schedule(mhi_netdev->napi);

		mhi_netdev->napi_scheduled = true;



		/* wait for buffers to run low or thread to stop */

		wait_event_interruptible(mhi_netdev->alloc_event,
@@ -490,6 +492,7 @@ static int mhi_netdev_poll(struct napi_struct *napi, int budget) 
	if (rx_work < 0) {

		MSG_ERR("Error polling ret:%d\n", rx_work);

		napi_complete(napi);

		mhi_netdev->napi_scheduled = false;

		return 0;

	}
@@ -500,8 +503,10 @@ static int mhi_netdev_poll(struct napi_struct *napi, int budget) 
		mhi_netdev_queue(mhi_netdev, rsc_dev->mhi_dev);



	/* complete work if # of packet processed less than allocated budget */

	if (rx_work < budget)

	if (rx_work < budget) {

		napi_complete(napi);

		mhi_netdev->napi_scheduled = false;

	}



	MSG_VERB("polled %d\n", rx_work);
@@ -837,6 +842,7 @@ static void mhi_netdev_status_cb(struct mhi_device *mhi_dev, enum MHI_CB mhi_cb) 
		return;



	napi_schedule(mhi_netdev->napi);

	mhi_netdev->napi_scheduled = true;

}



#ifdef CONFIG_DEBUG_FS
@@ -1098,6 +1104,7 @@ static int mhi_netdev_probe(struct mhi_device *mhi_dev, 
	 * by triggering a napi_poll

	 */

	napi_schedule(mhi_netdev->napi);

	mhi_netdev->napi_scheduled = true;



	return 0;

}