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Commit 0e8b24fb authored by Badhri Jagan Sridharan's avatar Badhri Jagan Sridharan Committed by Ruchi Kandoi
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ndis: Add debug support to disable RNDIS Multipacket Feature 



This change adds module param which allows to disable RNDIS
Multi-packet Feature (Aggregation support in Downlink path)
as this feature is enabled by default.

To disable use this param before moving to RNDIS Composition:
echo 1 > /sys/module/g_android/parameters/rndis_multipacket_dl_disable

Also counts errors as Rx errors if received RNDIS packets are
not following RNDIS message format as those packets are being
discarded.

Change-Id: I764430da78f2204af92e14bb279c11b24c7e4c67
Signed-off-by: default avatarMayank Rana <mrana@codeaurora.org>
parent e298eec1

drivers/usb/gadget/function/f_rndis.c

+2 −0
Original line number Diff line number Diff line
@@ -481,6 +481,8 @@ static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req) 
				__func__, buf->MaxTransferSize,

				rndis->port.multi_pkt_xfer ? "enabled" :

							    "disabled");

		if (rndis_multipacket_dl_disable)

			rndis->port.multi_pkt_xfer = 0;

	}

//	spin_unlock(&dev->lock);

}

drivers/usb/gadget/function/u_ether.c

+4 −0
Original line number Diff line number Diff line
@@ -291,6 +291,10 @@ static void rx_complete(struct usb_ep *ep, struct usb_request *req) 
				status = dev->unwrap(dev->port_usb,

							skb,

							&dev->rx_frames);

				if (status == -EINVAL)

					dev->net->stats.rx_errors++;

				else if (status == -EOVERFLOW)

					dev->net->stats.rx_over_errors++;

			} else {

				dev_kfree_skb_any(skb);

				status = -ENOTCONN;