[deliverable/linux.git] / drivers / net / wireless / libertas / rx.c

/*
 * This file contains the handling of RX in wlan driver.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <net/cfg80211.h>

#include "defs.h"
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "dev.h"

struct eth803hdr {
	u8 dest_addr[6];
	u8 src_addr[6];
	u16 h803_len;
} __packed;

struct rfc1042hdr {
	u8 llc_dsap;
	u8 llc_ssap;
	u8 llc_ctrl;
	u8 snap_oui[3];
	u16 snap_type;
} __packed;

struct rxpackethdr {
	struct eth803hdr eth803_hdr;
	struct rfc1042hdr rfc1042_hdr;
} __packed;

struct rx80211packethdr {
	struct rxpd rx_pd;
	void *eth80211_hdr;
} __packed;

static int process_rxed_802_11_packet(struct lbs_private *priv,
	struct sk_buff *skb);

/**
 * lbs_process_rxed_packet - processes received packet and forwards it
 * to kernel/upper layer
 *
 * @priv:	A pointer to &struct lbs_private
 * @skb:	A pointer to skb which includes the received packet
 * returns:	0 or -1
 */
int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
{
	int ret = 0;
	struct net_device *dev = priv->dev;
	struct rxpackethdr *p_rx_pkt;
	struct rxpd *p_rx_pd;
	int hdrchop;
	struct ethhdr *p_ethhdr;
	static const u8 rfc1042_eth_hdr[] = {
		0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
	};

	lbs_deb_enter(LBS_DEB_RX);

	BUG_ON(!skb);

	skb->ip_summed = CHECKSUM_NONE;

	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
		return process_rxed_802_11_packet(priv, skb);

	p_rx_pd = (struct rxpd *) skb->data;
	p_rx_pkt = (struct rxpackethdr *) ((u8 *)p_rx_pd +
		le32_to_cpu(p_rx_pd->pkt_ptr));

	dev = lbs_mesh_set_dev(priv, dev, p_rx_pd);

	lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
		 min_t(unsigned int, skb->len, 100));

	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
		lbs_deb_rx("rx err: frame received with bad length\n");
		dev->stats.rx_length_errors++;
		ret = 0;
		dev_kfree_skb(skb);
		goto done;
	}

	lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
		skb->len, (size_t)le32_to_cpu(p_rx_pd->pkt_ptr),
		skb->len - (size_t)le32_to_cpu(p_rx_pd->pkt_ptr));

	lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
		sizeof(p_rx_pkt->eth803_hdr.dest_addr));
	lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
		sizeof(p_rx_pkt->eth803_hdr.src_addr));

	if (memcmp(&p_rx_pkt->rfc1042_hdr,
		   rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) {
		/*
		 *  Replace the 803 header and rfc1042 header (llc/snap) with an
		 *    EthernetII header, keep the src/dst and snap_type (ethertype)
		 *
		 *  The firmware only passes up SNAP frames converting
		 *    all RX Data from 802.11 to 802.2/LLC/SNAP frames.
		 *
		 *  To create the Ethernet II, just move the src, dst address right
		 *    before the snap_type.
		 */
		p_ethhdr = (struct ethhdr *)
		    ((u8 *) &p_rx_pkt->eth803_hdr
		     + sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
		     - sizeof(p_rx_pkt->eth803_hdr.dest_addr)
		     - sizeof(p_rx_pkt->eth803_hdr.src_addr)
		     - sizeof(p_rx_pkt->rfc1042_hdr.snap_type));

		memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,
		       sizeof(p_ethhdr->h_source));
		memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
		       sizeof(p_ethhdr->h_dest));

		/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
		 *   that was removed
		 */
		hdrchop = (u8 *)p_ethhdr - (u8 *)p_rx_pd;
	} else {
		lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
			(u8 *) &p_rx_pkt->rfc1042_hdr,
			sizeof(p_rx_pkt->rfc1042_hdr));

		/* Chop off the rxpd */
		hdrchop = (u8 *)&p_rx_pkt->eth803_hdr - (u8 *)p_rx_pd;
	}

	/* Chop off the leading header bytes so the skb points to the start of
	 *   either the reconstructed EthII frame or the 802.2/llc/snap frame
	 */
	skb_pull(skb, hdrchop);

	priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);

	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
	dev->stats.rx_bytes += skb->len;
	dev->stats.rx_packets++;

	skb->protocol = eth_type_trans(skb, dev);
	if (in_interrupt())
		netif_rx(skb);
	else
		netif_rx_ni(skb);

	ret = 0;
done:
	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
	return ret;
}
EXPORT_SYMBOL_GPL(lbs_process_rxed_packet);

/**
 * convert_mv_rate_to_radiotap - converts Tx/Rx rates from Marvell WLAN format
 * (see Table 2 in Section 3.1) to IEEE80211_RADIOTAP_RATE units (500 Kb/s)
 *
 * @rate:	Input rate
 * returns:	Output Rate (0 if invalid)
 */
static u8 convert_mv_rate_to_radiotap(u8 rate)
{
	switch (rate) {
	case 0:		/*   1 Mbps */
		return 2;
	case 1:		/*   2 Mbps */
		return 4;
	case 2:		/* 5.5 Mbps */
		return 11;
	case 3:		/*  11 Mbps */
		return 22;
	/* case 4: reserved */
	case 5:		/*   6 Mbps */
		return 12;
	case 6:		/*   9 Mbps */
		return 18;
	case 7:		/*  12 Mbps */
		return 24;
	case 8:		/*  18 Mbps */
		return 36;
	case 9:		/*  24 Mbps */
		return 48;
	case 10:		/*  36 Mbps */
		return 72;
	case 11:		/*  48 Mbps */
		return 96;
	case 12:		/*  54 Mbps */
		return 108;
	}
	pr_alert("Invalid Marvell WLAN rate %i\n", rate);
	return 0;
}

/**
 * process_rxed_802_11_packet - processes a received 802.11 packet and forwards
 * it to kernel/upper layer
 *
 * @priv:	A pointer to &struct lbs_private
 * @skb:	A pointer to skb which includes the received packet
 * returns:	0 or -1
 */
static int process_rxed_802_11_packet(struct lbs_private *priv,
	struct sk_buff *skb)
{
	int ret = 0;
	struct net_device *dev = priv->dev;
	struct rx80211packethdr *p_rx_pkt;
	struct rxpd *prxpd;
	struct rx_radiotap_hdr radiotap_hdr;
	struct rx_radiotap_hdr *pradiotap_hdr;

	lbs_deb_enter(LBS_DEB_RX);

	p_rx_pkt = (struct rx80211packethdr *) skb->data;
	prxpd = &p_rx_pkt->rx_pd;

	/* lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100)); */

	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
		lbs_deb_rx("rx err: frame received with bad length\n");
		dev->stats.rx_length_errors++;
		ret = -EINVAL;
		kfree_skb(skb);
		goto done;
	}

	lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
	       skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));

	/* create the exported radio header */

	/* radiotap header */
	memset(&radiotap_hdr, 0, sizeof(radiotap_hdr));
	/* XXX must check radiotap_hdr.hdr.it_pad for pad */
	radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
	radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
	radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
	/* XXX must check no carryout */
	radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;

	/* chop the rxpd */
	skb_pull(skb, sizeof(struct rxpd));

	/* add space for the new radio header */
	if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
	    pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0, GFP_ATOMIC)) {
		netdev_alert(dev, "%s: couldn't pskb_expand_head\n", __func__);
		ret = -ENOMEM;
		kfree_skb(skb);
		goto done;
	}

	pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));
	memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));

	priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);

	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
	dev->stats.rx_bytes += skb->len;
	dev->stats.rx_packets++;

	skb->protocol = eth_type_trans(skb, priv->dev);

	if (in_interrupt())
		netif_rx(skb);
	else
		netif_rx_ni(skb);

	ret = 0;

done:
	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
	return ret;
}
Commit	Line	Data
8973a6e7 RD	1	/*
	2	* This file contains the handling of RX in wlan driver.
	3	*/
0e4e06ae JP	4
	5	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	6
876c9d3a	7	#include <linux/etherdevice.h>
5a0e3ad6	8	#include <linux/slab.h>
876c9d3a	9	#include <linux/types.h>
e86dc1ca	10	#include <net/cfg80211.h>
876c9d3a	11
e86dc1ca	12	#include "defs.h"
9e66e701	13	#include "host.h"
876c9d3a MT	14	#include "radiotap.h"
	15	#include "decl.h"
	16	#include "dev.h"
876c9d3a MT	17
	18	struct eth803hdr {
	19	u8 dest_addr[6];
	20	u8 src_addr[6];
	21	u16 h803_len;
ba2d3587	22	} __packed;
876c9d3a MT	23
	24	struct rfc1042hdr {
	25	u8 llc_dsap;
	26	u8 llc_ssap;
	27	u8 llc_ctrl;
	28	u8 snap_oui[3];
	29	u16 snap_type;
ba2d3587	30	} __packed;
876c9d3a MT	31
876c9d3a MT	32	struct rxpackethdr {
876c9d3a MT	33	struct eth803hdr eth803_hdr;
876c9d3a MT	34	struct rfc1042hdr rfc1042_hdr;
ba2d3587	35	} __packed;
876c9d3a MT	36
	37	struct rx80211packethdr {
	38	struct rxpd rx_pd;
	39	void *eth80211_hdr;
ba2d3587	40	} __packed;
876c9d3a	41
69f9032d HS	42	static int process_rxed_802_11_packet(struct lbs_private *priv,
69f9032d HS	43	struct sk_buff *skb);
876c9d3a	44
876c9d3a	45	/**
8973a6e7 RD	46	* lbs_process_rxed_packet - processes received packet and forwards it
8973a6e7 RD	47	* to kernel/upper layer
876c9d3a	48	*
8973a6e7 RD	49	* @priv: A pointer to &struct lbs_private
	50	* @skb: A pointer to skb which includes the received packet
	51	* returns: 0 or -1
876c9d3a	52	*/
69f9032d	53	int lbs_process_rxed_packet(struct lbs_private priv, struct sk_buff skb)
876c9d3a	54	{
876c9d3a	55	int ret = 0;
6f93a8e7	56	struct net_device *dev = priv->dev;
876c9d3a MT	57	struct rxpackethdr *p_rx_pkt;
876c9d3a MT	58	struct rxpd *p_rx_pd;
876c9d3a MT	59	int hdrchop;
876c9d3a MT	60	struct ethhdr *p_ethhdr;
482e039f JP	61	static const u8 rfc1042_eth_hdr[] = {
	62	0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
	63	};
876c9d3a	64
9012b28a	65	lbs_deb_enter(LBS_DEB_RX);
876c9d3a	66
7919b89c HS	67	BUG_ON(!skb);
7919b89c HS	68
6f93a8e7 DW	69	skb->ip_summed = CHECKSUM_NONE;
6f93a8e7 DW	70
e86dc1ca	71	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
876c9d3a MT	72	return process_rxed_802_11_packet(priv, skb);
876c9d3a MT	73
e45d8e53 BZ	74	p_rx_pd = (struct rxpd *) skb->data;
	75	p_rx_pkt = (struct rxpackethdr ) ((u8 )p_rx_pd +
	76	le32_to_cpu(p_rx_pd->pkt_ptr));
e0e42da3 HS	77
e0e42da3 HS	78	dev = lbs_mesh_set_dev(priv, dev, p_rx_pd);
876c9d3a	79
ece56191	80	lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
876c9d3a MT	81	min_t(unsigned int, skb->len, 100));
	82
	83	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
9012b28a	84	lbs_deb_rx("rx err: frame received with bad length\n");
bbfc6b78	85	dev->stats.rx_length_errors++;
876c9d3a	86	ret = 0;
f54930f3	87	dev_kfree_skb(skb);
876c9d3a MT	88	goto done;
	89	}
	90
e45d8e53	91	lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
a2caba6b JL	92	skb->len, (size_t)le32_to_cpu(p_rx_pd->pkt_ptr),
a2caba6b JL	93	skb->len - (size_t)le32_to_cpu(p_rx_pd->pkt_ptr));
876c9d3a	94
ece56191	95	lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
876c9d3a	96	sizeof(p_rx_pkt->eth803_hdr.dest_addr));
ece56191	97	lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
876c9d3a MT	98	sizeof(p_rx_pkt->eth803_hdr.src_addr));
	99
	100	if (memcmp(&p_rx_pkt->rfc1042_hdr,
	101	rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) {
	102	/*
	103	* Replace the 803 header and rfc1042 header (llc/snap) with an
	104	* EthernetII header, keep the src/dst and snap_type (ethertype)
	105	*
	106	* The firmware only passes up SNAP frames converting
	107	* all RX Data from 802.11 to 802.2/LLC/SNAP frames.
	108	*
	109	* To create the Ethernet II, just move the src, dst address right
	110	* before the snap_type.
	111	*/
	112	p_ethhdr = (struct ethhdr *)
819cf15e	113	((u8 *) &p_rx_pkt->eth803_hdr
876c9d3a MT	114	+ sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
	115	- sizeof(p_rx_pkt->eth803_hdr.dest_addr)
	116	- sizeof(p_rx_pkt->eth803_hdr.src_addr)
	117	- sizeof(p_rx_pkt->rfc1042_hdr.snap_type));
	118
	119	memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,
	120	sizeof(p_ethhdr->h_source));
	121	memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
	122	sizeof(p_ethhdr->h_dest));
	123
	124	/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
	125	* that was removed
	126	*/
e45d8e53	127	hdrchop = (u8 )p_ethhdr - (u8 )p_rx_pd;
876c9d3a	128	} else {
ece56191	129	lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
819cf15e	130	(u8 *) &p_rx_pkt->rfc1042_hdr,
876c9d3a MT	131	sizeof(p_rx_pkt->rfc1042_hdr));
	132
	133	/* Chop off the rxpd */
e45d8e53	134	hdrchop = (u8 )&p_rx_pkt->eth803_hdr - (u8 )p_rx_pd;
876c9d3a MT	135	}
	136
	137	/* Chop off the leading header bytes so the skb points to the start of
	138	* either the reconstructed EthII frame or the 802.2/llc/snap frame
	139	*/
	140	skb_pull(skb, hdrchop);
	141
e86dc1ca	142	priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
876c9d3a	143
9012b28a	144	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
bbfc6b78 SH	145	dev->stats.rx_bytes += skb->len;
bbfc6b78 SH	146	dev->stats.rx_packets++;
876c9d3a	147
6f93a8e7	148	skb->protocol = eth_type_trans(skb, dev);
ae3e0fcf HS	149	if (in_interrupt())
	150	netif_rx(skb);
	151	else
	152	netif_rx_ni(skb);
3d4bd24b	153
876c9d3a MT	154	ret = 0;
876c9d3a MT	155	done:
9012b28a	156	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
876c9d3a MT	157	return ret;
876c9d3a MT	158	}
10078321	159	EXPORT_SYMBOL_GPL(lbs_process_rxed_packet);
876c9d3a MT	160
876c9d3a MT	161	/**
8973a6e7 RD	162	* convert_mv_rate_to_radiotap - converts Tx/Rx rates from Marvell WLAN format
8973a6e7 RD	163	* (see Table 2 in Section 3.1) to IEEE80211_RADIOTAP_RATE units (500 Kb/s)
876c9d3a	164	*
8973a6e7 RD	165	* @rate: Input rate
8973a6e7 RD	166	* returns: Output Rate (0 if invalid)
876c9d3a MT	167	*/
	168	static u8 convert_mv_rate_to_radiotap(u8 rate)
	169	{
	170	switch (rate) {
	171	case 0: /* 1 Mbps */
	172	return 2;
	173	case 1: /* 2 Mbps */
	174	return 4;
	175	case 2: /* 5.5 Mbps */
	176	return 11;
	177	case 3: /* 11 Mbps */
	178	return 22;
965f8bbc LCC	179	/* case 4: reserved */
965f8bbc LCC	180	case 5: /* 6 Mbps */
876c9d3a	181	return 12;
965f8bbc	182	case 6: /* 9 Mbps */
876c9d3a	183	return 18;
965f8bbc	184	case 7: /* 12 Mbps */
876c9d3a	185	return 24;
965f8bbc	186	case 8: /* 18 Mbps */
876c9d3a	187	return 36;
965f8bbc	188	case 9: /* 24 Mbps */
876c9d3a	189	return 48;
965f8bbc	190	case 10: /* 36 Mbps */
876c9d3a	191	return 72;
965f8bbc	192	case 11: /* 48 Mbps */
876c9d3a	193	return 96;
965f8bbc	194	case 12: /* 54 Mbps */
876c9d3a MT	195	return 108;
876c9d3a MT	196	}
0e4e06ae	197	pr_alert("Invalid Marvell WLAN rate %i\n", rate);
876c9d3a MT	198	return 0;
	199	}
	200
	201	/**
8973a6e7 RD	202	* process_rxed_802_11_packet - processes a received 802.11 packet and forwards
8973a6e7 RD	203	* it to kernel/upper layer
876c9d3a	204	*
8973a6e7 RD	205	* @priv: A pointer to &struct lbs_private
	206	* @skb: A pointer to skb which includes the received packet
	207	* returns: 0 or -1
876c9d3a	208	*/
69f9032d HS	209	static int process_rxed_802_11_packet(struct lbs_private *priv,
69f9032d HS	210	struct sk_buff *skb)
876c9d3a	211	{
876c9d3a	212	int ret = 0;
bbfc6b78	213	struct net_device *dev = priv->dev;
876c9d3a MT	214	struct rx80211packethdr *p_rx_pkt;
	215	struct rxpd *prxpd;
	216	struct rx_radiotap_hdr radiotap_hdr;
	217	struct rx_radiotap_hdr *pradiotap_hdr;
	218
9012b28a	219	lbs_deb_enter(LBS_DEB_RX);
876c9d3a MT	220
	221	p_rx_pkt = (struct rx80211packethdr *) skb->data;
	222	prxpd = &p_rx_pkt->rx_pd;
	223
819cf15e	224	/* lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100)); */
876c9d3a MT	225
876c9d3a MT	226	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
7bf02c29	227	lbs_deb_rx("rx err: frame received with bad length\n");
bbfc6b78	228	dev->stats.rx_length_errors++;
7bf02c29	229	ret = -EINVAL;
b700a98c	230	kfree_skb(skb);
876c9d3a MT	231	goto done;
	232	}
	233
9012b28a	234	lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
876c9d3a MT	235	skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
	236
	237	/* create the exported radio header */
876c9d3a	238
180be755	239	/* radiotap header */
c6a6368b PB	240	memset(&radiotap_hdr, 0, sizeof(radiotap_hdr));
c6a6368b PB	241	/* XXX must check radiotap_hdr.hdr.it_pad for pad */
180be755 DW	242	radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
180be755 DW	243	radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
180be755 DW	244	radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
	245	/* XXX must check no carryout */
	246	radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
180be755 DW	247
	248	/* chop the rxpd */
	249	skb_pull(skb, sizeof(struct rxpd));
	250
	251	/* add space for the new radio header */
	252	if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
7bf02c29	253	pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0, GFP_ATOMIC)) {
f3a57fd1	254	netdev_alert(dev, "%s: couldn't pskb_expand_head\n", __func__);
7bf02c29 DW	255	ret = -ENOMEM;
	256	kfree_skb(skb);
	257	goto done;
876c9d3a MT	258	}
876c9d3a MT	259
180be755 DW	260	pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));
	261	memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));
	262
e86dc1ca	263	priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
876c9d3a	264
9012b28a	265	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
bbfc6b78 SH	266	dev->stats.rx_bytes += skb->len;
bbfc6b78 SH	267	dev->stats.rx_packets++;
876c9d3a	268
e86dc1ca KD	269	skb->protocol = eth_type_trans(skb, priv->dev);
	270
	271	if (in_interrupt())
	272	netif_rx(skb);
	273	else
	274	netif_rx_ni(skb);
3d4bd24b	275
876c9d3a	276	ret = 0;
876c9d3a	277
9012b28a	278	done:
9012b28a HS	279	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
9012b28a HS	280	return ret;
876c9d3a	281	}