Merge "usb: gadget: u_ether: add tx multipler module param"

module_param(qmult, uint, S_IRUGO|S_IWUSR);

MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");

/*

 * Usually downlink rates are higher than uplink rates and it

 * deserve higher number of requests. For CAT-6 data rates of

 * 300Mbps (~30 packets per milli-sec) 40 usb request may not

 * be sufficient. At this rate and with interrupt moderation

 * of interconnect, data can be very bursty. tx_qmult is the

 * additional multipler on qmult.

 */

static unsigned tx_qmult = 1;

module_param(tx_qmult, uint, S_IRUGO|S_IWUSR);

MODULE_PARM_DESC(tx_qmult, "Additional queue length multiplier for tx");

/* for dual-speed hardware, use deeper queues at high/super speed */

static inline int qlen(struct usb_gadget *gadget)

{

	int	status;

	spin_lock(&dev->req_lock);

	status = prealloc(&dev->tx_reqs, link->in_ep, n,

	status = prealloc(&dev->tx_reqs, link->in_ep, n * tx_qmult,

				dev->gadget->sg_supported,

				dev->header_len);

	if (status < 0)