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Commit f645ecc0 authored by Hemant Kumar's avatar Hemant Kumar Committed by Jack Pham
Browse files

usb: gadget: rndis: Add new rndis parameters 



Add pkt_alignment_factor rndis parameter. This
parameter along with max_pkt_per_xfer allow rndis
function driver to aggregate more than one IP packets
per transfer. This is done by calling newly added API
rndis_set_pkt_alignment_factor().

Change-Id: Ic9c543c388f872452e708a3a26be4ae82b54c082
Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
Signed-off-by: default avatarJack Pham <jackp@codeaurora.org>
parent 56a743ea

drivers/usb/gadget/function/rndis.c

+14 −1
Original line number Diff line number Diff line
@@ -579,7 +579,7 @@ static int rndis_init_response(struct rndis_params *params, 
		+ sizeof(struct ethhdr)

		+ sizeof(struct rndis_packet_msg_type)

		+ 22));

	resp->PacketAlignmentFactor = cpu_to_le32(0);

	resp->PacketAlignmentFactor = cpu_to_le32(params->pkt_alignment_factor);

	resp->AFListOffset = cpu_to_le32(0);

	resp->AFListSize = cpu_to_le32(0);
@@ -1179,6 +1179,19 @@ int rndis_rm_hdr(struct gether *port, 
}

EXPORT_SYMBOL_GPL(rndis_rm_hdr);



void rndis_set_pkt_alignment_factor(struct rndis_params *params,

		u8 pkt_alignment_factor)

{

	pr_debug("%s:\n", __func__);



	if (!params) {

		pr_err("%s: failed, params NULL\n", __func__);

		return;

	}



	params->pkt_alignment_factor = pkt_alignment_factor;

}



#ifdef CONFIG_USB_GADGET_DEBUG_FILES



static int rndis_proc_show(struct seq_file *m, void *v)

drivers/usb/gadget/function/rndis.h

+3 −0
Original line number Diff line number Diff line
@@ -172,6 +172,7 @@ typedef struct rndis_params { 
	u32			vendorID;

	u8			max_pkt_per_xfer;

	const char		*vendorDescr;

	u8			pkt_alignment_factor;

	void			(*resp_avail)(void *v);

	void			(*flow_ctrl_enable)(bool enable,

			struct rndis_params *params);
@@ -204,5 +205,7 @@ int rndis_signal_disconnect(struct rndis_params *params); 
int  rndis_state(struct rndis_params *params);

extern void rndis_set_host_mac(struct rndis_params *params, const u8 *addr);

void rndis_flow_control(struct rndis_params *params, bool enable_flow_control);

void rndis_set_pkt_alignment_factor(struct rndis_params *params,

		u8 pkt_alignment_factor);



#endif  /* _LINUX_RNDIS_H */