aboutsummaryrefslogtreecommitdiffstats
path: root/docs/com/pres/Summit/Berlin-2016/conversation.html
blob: 356c2ad1e0f6ec3e9d7995e3272f2f63ca9944c2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
<!doctype html>
<html lang="en">

	<head>
		<meta charset="utf-8">

		<title>OPNFV presentation</title>

		<meta name="description" content="Conversation with the Testing community">
		<meta name="author" content="OPNFV Testing Worjing Group">

		<meta name="apple-mobile-web-app-capable" content="yes" />
		<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />

		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">

		<link rel="stylesheet" href="../../reveal.js/css/reveal.css">
		<link rel="stylesheet" href="../../../css/theme/OPNFV-Berlin.css" id="theme">

		<!-- Code syntax highlighting -->
		<link rel="stylesheet" href="../../reveal.js/lib/css/zenburn.css">

		<!-- Printing and PDF exports -->
		<script>
			var link = document.createElement( 'link' );
			link.rel = 'stylesheet';
			link.type = 'text/css';
			link.href = window.location.search.match( /print-pdf/gi ) ? '../../reveal.js/css/print/pdf.css' : '../../reveal.js/css/print/paper.css';
			document.getElementsByTagName( 'head' )[0].appendChild( link );
		</script>

		<!--[if lt IE 9]>
		<script src="lib/js/html5shiv.js"></script>
		<![endif]-->
	</head>

	<body>

		<div class="reveal">
			<!-- Any section element inside of this container is displayed as a slide -->
			<div class="slides">

				<section data-background="../../../img/title-bg-berlin.png" data-background-transition="none">
                     <br><br><br><br><br>
                     <h1>Conversation with the Testing Community</h1>
                     <br><br>
					 <h4>OPNFV testing community</h4>
					 <h5>OPNFV Design Summit, 20/6/2016, Berlin</h5>
					 <br>

				</section>

				<section data-markdown>
						>“You make experiments and I make theories. Do you know the difference? A theory is something nobody believes, except the person who made it. An experiment is something everybody believes, except the person who made it." A.Einstein
				</section>

				<section data-markdown>
					# Agenda
					* Who are we?
					* Upstream, Upstream, Upstream
					* Towards Telco Cloud KPI
				</section>

				<section data-markdown>
					# Who are we?
					![team](../../../img/OPNFV_testing_group.png)
					This is a representation...not a governance!
				</section>
                <section>
					<section>
						<h3>The test projects</h3>
						<table>
							<thead>
								<tr>
									<th>Test case</th>
									<th>Description</th>
								</tr>
							</thead>
							<tbody>
								<tr>
									<td>Functest</td>
									<td>Umbrella project for Functional testing</td>
								</tr>
								<tr>
									<td>Yardstick</td>
									<td>Umbrella project for performance/qualification testing</td>
								</tr>
								<tr>
									<td>CPerf</td>
									<td>SDN controller performance testing</td>
								</tr>
								<tr>
									<td>StorPerf</td>
									<td>Storage performance testing</td>
								</tr>
								<tr>
									<td>VSPerf</td>
									<td>VSwitch qualification</td>
								</tr>
								<tr>
									<td>Bottlenecks</td>
									<td>Detect possible bottlenecks</td>
								</tr>
								<tr>
									<td>QTIP</td>
									<td>Benchmark to boost performance</td>
								</tr>
							</tbody>
						</table>
					</section>

						<section data-markdown>
							# Functest
							* Functional testing to validate scenarios
							* Contributors (raise your hands)
							* Functest presentation (here...1h ago :))
							* breakout sessions
							  * Today 3.10PM-3.40PM (vIMS evolution) 4PM (feature project integration), 5PM (Colorado status)
							  * tomorrow 11AM (API, test collection), 1PM (work Upstream), 3.15PM (D Release)(to be confirmed...)
						</section>
						<section data-markdown>
							# Yardstick
							* Performance testing framework and NFVI Validation
							* [Contributors](https://wiki.opnfv.org/display/yardstick/People)
							* Yardstick presentation
							  * How to Do a Pre-deployment NFVI Validation Quickly and Efficiently? Wednesday, June 22, 4:00 PM - 4:30 PM
							  * Yardstick: A Pre-deployment NFVI Validation Tool. Thursday, June 23, 3:10 PM - 3:30 PM
							* breakout sessions
							  * Tomorrow 2PM (Yardstick in C)
						</section>
						<section data-markdown>
							# CPerf
							* SDN Controller Performance Testing
							* Upstream test experts + standards/metrics experts
							* Goal: Cross-controller perf tests in CI against realistic deployments
						</section>
						<section data-markdown>
							# StorPerf
							* Cinder Volume Performance Testing
							* Based on SNIA's SSD Test Specification
							* Presentation
							  * StorPerf: Cinder Storage Performance Measurement.
							    Wednesday, June 22, 3:40 PM - 3:55 PM
							* Breakout Session
							  * Tomorrow 10:15 (StorPerf Test Results Working Session)
						</section>
						<section data-markdown>
							# VSPerf
						</section>
						<section data-markdown>
							# Bottlenecks
						</section>
						<section data-markdown>
							# QTIP

							## OPNFV Platform Benchmark

							- Bottom up
								- testing baremetal components first
							- More than result
								- comparing against reference
							- Setup-Test-Diagnose-Improve
								- a closed loop to boost platform performance

							## Breakout session

							- 14:30~15:45, June 21st/Tuesday
							- Room Tegel
						</section>
				</section>
				<section>
				    <section data-markdown>
				    # Upstream, upstream, upstream..
				    </section>
				    <section data-markdown>
				    ## We are on the shoulders of the giants
				    * Rally (OpenStack)
				    * ODL, ONOS, ...
				    * RobotFramework, Teston
				    * .....
				    </section>
				    <section data-markdown>
				    ## Time to give back
				    ### How to improve work with testing upstream community
				    </section>

				</section>

				<section>

				    <section data-markdown>
				    # Towards Telco Cloud KPI?
				    </section>

				    <section data-markdown>
				    # Testing group goals
				    * Define common needs (naming, rules, tools...)
				    * Unify result collection, reporting, dashboarding, documentation
				    * Share best practice: docker, CLI, ..
				    * Identify testing domains
				    * Encourage testing in poorly covered areas
				    </section>

				    <section data-markdown>
				    # The ultimate goal: define Telco Cloud KPIs
				    * Provide methodology and test suites to qualify a Telco Cloud
				    * Provide reference benchs for plugfest/third party integration: compare apple with apple
				    </section>

				</section>

				<section data-markdown>
					# Thank you
				</section>

			</div>
            <div class='footer'>
				 <img src="../../../img/logo-OPNFV-Berlin.png" alt="OPNFV logo"> 
	        </div>
		</div>

		<script src="../../reveal.js/lib/js/head.min.js"></script>
		<script src="../../reveal.js/js/reveal.js"></script>

		<script>

			// Full list of configuration options available at:
			// https://github.com/hakimel/reveal.js#configuration
			Reveal.initialize({
				controls: true,
				progress: true,
				history: true,
				center: true,

				transition: 'slide', // none/fade/slide/convex/concave/zoom

				// Optional reveal.js plugins
				dependencies: [
					{ src: '../../reveal.js/lib/js/classList.js', condition: function() { return !document.body.classList; } },
					{ src: '../../reveal.js/plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
					{ src: '../../reveal.js/plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
					{ src: '../../reveal.js/plugin/highlight/highlight.js', async: true, condition: function() { return !!document.querySelector( 'pre code' ); }, callback: function() { hljs.initHighlightingOnLoad(); } },
					{ src: '../../reveal.js/plugin/zoom-js/zoom.js', async: true },
					{ src: '../../reveal.js/plugin/notes/notes.js', async: true }
				]
			});

		</script>

	</body>
</html>
bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ }
/******************************************************************************
 *
 * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 * wlanfae <wlanfae@realtek.com>
 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 * Hsinchu 300, Taiwan.
 *
 *****************************************************************************/

#include "wifi.h"
#include "core.h"
#include "usb.h"
#include "base.h"
#include "ps.h"
#include "rtl8192c/fw_common.h"
#include <linux/export.h>
#include <linux/module.h>

MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("USB basic driver for rtlwifi");

#define	REALTEK_USB_VENQT_READ			0xC0
#define	REALTEK_USB_VENQT_WRITE			0x40
#define REALTEK_USB_VENQT_CMD_REQ		0x05
#define	REALTEK_USB_VENQT_CMD_IDX		0x00

#define MAX_USBCTRL_VENDORREQ_TIMES		10

static void usbctrl_async_callback(struct urb *urb)
{
	if (urb) {
		/* free dr */
		kfree(urb->setup_packet);
		/* free databuf */
		kfree(urb->transfer_buffer);
	}
}

static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
					  u16 value, u16 index, void *pdata,
					  u16 len)
{
	int rc;
	unsigned int pipe;
	u8 reqtype;
	struct usb_ctrlrequest *dr;
	struct urb *urb;
	const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE;
	u8 *databuf;

	if (WARN_ON_ONCE(len > databuf_maxlen))
		len = databuf_maxlen;

	pipe = usb_sndctrlpipe(udev, 0); /* write_out */
	reqtype =  REALTEK_USB_VENQT_WRITE;

	dr = kzalloc(sizeof(*dr), GFP_ATOMIC);
	if (!dr)
		return -ENOMEM;

	databuf = kzalloc(databuf_maxlen, GFP_ATOMIC);
	if (!databuf) {
		kfree(dr);
		return -ENOMEM;
	}

	urb = usb_alloc_urb(0, GFP_ATOMIC);
	if (!urb) {
		kfree(databuf);
		kfree(dr);
		return -ENOMEM;
	}

	dr->bRequestType = reqtype;
	dr->bRequest = request;
	dr->wValue = cpu_to_le16(value);
	dr->wIndex = cpu_to_le16(index);
	dr->wLength = cpu_to_le16(len);
	/* data are already in little-endian order */
	memcpy(databuf, pdata, len);
	usb_fill_control_urb(urb, udev, pipe,
			     (unsigned char *)dr, databuf, len,
			     usbctrl_async_callback, NULL);
	rc = usb_submit_urb(urb, GFP_ATOMIC);
	if (rc < 0) {
		kfree(databuf);
		kfree(dr);
	}
	usb_free_urb(urb);
	return rc;
}

static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
					u16 value, u16 index, void *pdata,
					u16 len)
{
	unsigned int pipe;
	int status;
	u8 reqtype;
	int vendorreq_times = 0;
	static int count;

	pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
	reqtype =  REALTEK_USB_VENQT_READ;

	do {
		status = usb_control_msg(udev, pipe, request, reqtype, value,
					 index, pdata, len, 1000);
		if (status < 0) {
			/* firmware download is checksumed, don't retry */
			if ((value >= FW_8192C_START_ADDRESS &&
			    value <= FW_8192C_END_ADDRESS))
				break;
		} else {
			break;
		}
	} while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES);

	if (status < 0 && count++ < 4)
		pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
		       value, status, *(u32 *)pdata);
	return status;
}

static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len)
{
	struct device *dev = rtlpriv->io.dev;
	struct usb_device *udev = to_usb_device(dev);
	u8 request;
	u16 wvalue;
	u16 index;
	__le32 *data;
	unsigned long flags;

	spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags);
	if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT)
		rtlpriv->usb_data_index = 0;
	data = &rtlpriv->usb_data[rtlpriv->usb_data_index];
	spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags);
	request = REALTEK_USB_VENQT_CMD_REQ;
	index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */

	wvalue = (u16)addr;
	_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
	return le32_to_cpu(*data);
}

static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
{
	return (u8)_usb_read_sync(rtlpriv, addr, 1);
}

static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
{
	return (u16)_usb_read_sync(rtlpriv, addr, 2);
}

static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
{
	return _usb_read_sync(rtlpriv, addr, 4);
}

static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
			     u16 len)
{
	u8 request;
	u16 wvalue;
	u16 index;
	__le32 data;

	request = REALTEK_USB_VENQT_CMD_REQ;
	index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
	wvalue = (u16)(addr&0x0000ffff);
	data = cpu_to_le32(val);
	_usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
				       len);
}

static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
{
	struct device *dev = rtlpriv->io.dev;

	_usb_write_async(to_usb_device(dev), addr, val, 1);
}

static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
{
	struct device *dev = rtlpriv->io.dev;

	_usb_write_async(to_usb_device(dev), addr, val, 2);
}

static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
{
	struct device *dev = rtlpriv->io.dev;

	_usb_write_async(to_usb_device(dev), addr, val, 4);
}

static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data,
			     u16 len)
{
	struct device *dev = rtlpriv->io.dev;
	struct usb_device *udev = to_usb_device(dev);
	u8 request = REALTEK_USB_VENQT_CMD_REQ;
	u8 reqtype =  REALTEK_USB_VENQT_WRITE;
	u16 wvalue;
	u16 index = REALTEK_USB_VENQT_CMD_IDX;
	int pipe = usb_sndctrlpipe(udev, 0); /* write_out */
	u8 *buffer;

	wvalue = (u16)(addr & 0x0000ffff);
	buffer = kmemdup(data, len, GFP_ATOMIC);
	if (!buffer)
		return;
	usb_control_msg(udev, pipe, request, reqtype, wvalue,
			index, buffer, len, 50);

	kfree(buffer);
}

static void _rtl_usb_io_handler_init(struct device *dev,
				     struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtlpriv->io.dev = dev;
	mutex_init(&rtlpriv->io.bb_mutex);
	rtlpriv->io.write8_async	= _usb_write8_async;
	rtlpriv->io.write16_async	= _usb_write16_async;
	rtlpriv->io.write32_async	= _usb_write32_async;
	rtlpriv->io.read8_sync		= _usb_read8_sync;
	rtlpriv->io.read16_sync		= _usb_read16_sync;
	rtlpriv->io.read32_sync		= _usb_read32_sync;
	rtlpriv->io.writeN_sync		= _usb_writeN_sync;
}

static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
{
	struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);

	mutex_destroy(&rtlpriv->io.bb_mutex);
}

/**
 *
 *	Default aggregation handler. Do nothing and just return the oldest skb.
 */
static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
						  struct sk_buff_head *list)
{
	return skb_dequeue(list);
}

#define IS_HIGH_SPEED_USB(udev) \
		((USB_SPEED_HIGH == (udev)->speed) ? true : false)

static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
{
	u32 i;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
						    ? USB_HIGH_SPEED_BULK_SIZE
						    : USB_FULL_SPEED_BULK_SIZE;

	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n",
		 rtlusb->max_bulk_out_size);

	for (i = 0; i < __RTL_TXQ_NUM; i++) {
		u32 ep_num = rtlusb->ep_map.ep_mapping[i];
		if (!ep_num) {
			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
				 "Invalid endpoint map setting!\n");
			return -EINVAL;
		}
	}

	rtlusb->usb_tx_post_hdl =
		 rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
	rtlusb->usb_tx_cleanup	=
		 rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
	rtlusb->usb_tx_aggregate_hdl =
		 (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
		 ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
		 : &_none_usb_tx_aggregate_hdl;

	init_usb_anchor(&rtlusb->tx_submitted);
	for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
		skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
		init_usb_anchor(&rtlusb->tx_pending[i]);
	}
	return 0;
}

static void _rtl_rx_work(unsigned long param);

static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);

	rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
	rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
	rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
	rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
	rtlusb->usb_rx_segregate_hdl =
		rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;

	pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
		rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
	init_usb_anchor(&rtlusb->rx_submitted);
	init_usb_anchor(&rtlusb->rx_cleanup_urbs);

	skb_queue_head_init(&rtlusb->rx_queue);
	rtlusb->rx_work_tasklet.func = _rtl_rx_work;
	rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb;

	return 0;
}

static int _rtl_usb_init(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
	int err;
	u8 epidx;
	struct usb_interface	*usb_intf = rtlusb->intf;
	u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;

	rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
	for (epidx = 0; epidx < epnums; epidx++) {
		struct usb_endpoint_descriptor *pep_desc;
		pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;

		if (usb_endpoint_dir_in(pep_desc))
			rtlusb->in_ep_nums++;
		else if (usb_endpoint_dir_out(pep_desc))
			rtlusb->out_ep_nums++;

		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
			 pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
			 pep_desc->bInterval);
	}
	if (rtlusb->in_ep_nums <  rtlpriv->cfg->usb_interface_cfg->in_ep_num) {
		pr_err("Too few input end points found\n");
		return -EINVAL;
	}
	if (rtlusb->out_ep_nums == 0) {
		pr_err("No output end points found\n");
		return -EINVAL;
	}
	/* usb endpoint mapping */
	err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
	rtlusb->usb_mq_to_hwq =  rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
	_rtl_usb_init_tx(hw);
	_rtl_usb_init_rx(hw);
	return err;
}

static void rtl_usb_init_sw(struct ieee80211_hw *hw)
{
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	rtlhal->hw = hw;
	ppsc->inactiveps = false;
	ppsc->leisure_ps = false;
	ppsc->fwctrl_lps = false;
	ppsc->reg_fwctrl_lps = 3;
	ppsc->reg_max_lps_awakeintvl = 5;
	ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;

	 /* IBSS */
	mac->beacon_interval = 100;

	 /* AMPDU */
	mac->min_space_cfg = 0;
	mac->max_mss_density = 0;

	/* set sane AMPDU defaults */
	mac->current_ampdu_density = 7;
	mac->current_ampdu_factor = 3;

	/* QOS */
	rtlusb->acm_method = EACMWAY2_SW;

	/* IRQ */
	/* HIMR - turn all on */
	rtlusb->irq_mask[0] = 0xFFFFFFFF;
	/* HIMR_EX - turn all on */
	rtlusb->irq_mask[1] = 0xFFFFFFFF;
	rtlusb->disableHWSM =  true;
}

static void _rtl_rx_completed(struct urb *urb);

static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb,
			      struct urb *urb, gfp_t gfp_mask)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	void *buf;

	buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask,
				 &urb->transfer_dma);
	if (!buf) {
		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
			 "Failed to usb_alloc_coherent!!\n");
		return -ENOMEM;
	}

	usb_fill_bulk_urb(urb, rtlusb->udev,
			  usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
			  buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb);
	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	return 0;
}

static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
				    struct sk_buff *skb)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u8 *rxdesc = skb->data;
	struct ieee80211_hdr *hdr;
	bool unicast = false;
	__le16 fc;
	struct ieee80211_rx_status rx_status = {0};
	struct rtl_stats stats = {
		.signal = 0,
		.rate = 0,
	};

	skb_pull(skb, RTL_RX_DESC_SIZE);
	rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
	skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
	hdr = (struct ieee80211_hdr *)(skb->data);
	fc = hdr->frame_control;
	if (!stats.crc) {
		memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));

		if (is_broadcast_ether_addr(hdr->addr1)) {
			/*TODO*/;
		} else if (is_multicast_ether_addr(hdr->addr1)) {
			/*TODO*/
		} else {
			unicast = true;
			rtlpriv->stats.rxbytesunicast +=  skb->len;
		}

		if (ieee80211_is_data(fc)) {
			rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);

			if (unicast)
				rtlpriv->link_info.num_rx_inperiod++;
		}
		/* static bcn for roaming */
		rtl_beacon_statistic(hw, skb);
	}
}

static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
				      struct sk_buff *skb)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u8 *rxdesc = skb->data;
	struct ieee80211_hdr *hdr;
	bool unicast = false;
	__le16 fc;
	struct ieee80211_rx_status rx_status = {0};
	struct rtl_stats stats = {
		.signal = 0,
		.rate = 0,
	};

	skb_pull(skb, RTL_RX_DESC_SIZE);
	rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
	skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
	hdr = (struct ieee80211_hdr *)(skb->data);
	fc = hdr->frame_control;
	if (!stats.crc) {
		memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));

		if (is_broadcast_ether_addr(hdr->addr1)) {
			/*TODO*/;
		} else if (is_multicast_ether_addr(hdr->addr1)) {
			/*TODO*/
		} else {
			unicast = true;
			rtlpriv->stats.rxbytesunicast +=  skb->len;
		}

		if (ieee80211_is_data(fc)) {
			rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);

			if (unicast)
				rtlpriv->link_info.num_rx_inperiod++;
		}

		/* static bcn for roaming */
		rtl_beacon_statistic(hw, skb);

		if (likely(rtl_action_proc(hw, skb, false)))
			ieee80211_rx(hw, skb);
		else
			dev_kfree_skb_any(skb);
	}
}

static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
{
	struct sk_buff *_skb;
	struct sk_buff_head rx_queue;
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	skb_queue_head_init(&rx_queue);
	if (rtlusb->usb_rx_segregate_hdl)
		rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
	WARN_ON(skb_queue_empty(&rx_queue));
	while (!skb_queue_empty(&rx_queue)) {
		_skb = skb_dequeue(&rx_queue);
		_rtl_usb_rx_process_agg(hw, _skb);
		ieee80211_rx(hw, _skb);
	}
}

#define __RX_SKB_MAX_QUEUED	64

static void _rtl_rx_work(unsigned long param)
{
	struct rtl_usb *rtlusb = (struct rtl_usb *)param;
	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
	struct sk_buff *skb;

	while ((skb = skb_dequeue(&rtlusb->rx_queue))) {
		if (unlikely(IS_USB_STOP(rtlusb))) {
			dev_kfree_skb_any(skb);
			continue;
		}

		if (likely(!rtlusb->usb_rx_segregate_hdl)) {
			_rtl_usb_rx_process_noagg(hw, skb);
		} else {
			/* TO DO */
			_rtl_rx_pre_process(hw, skb);
			pr_err("rx agg not supported\n");
		}
	}
}

static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
					unsigned int len)
{
#if NET_IP_ALIGN != 0
	unsigned int padding = 0;
#endif

	/* make function no-op when possible */
	if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
		return 0;

#if NET_IP_ALIGN != 0
	/* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */
	/* TODO: deduplicate common code, define helper function instead? */

	if (ieee80211_is_data_qos(hdr->frame_control)) {
		u8 *qc = ieee80211_get_qos_ctl(hdr);

		padding ^= NET_IP_ALIGN;

		/* Input might be invalid, avoid accessing memory outside
		 * the buffer.
		 */
		if ((unsigned long)qc - (unsigned long)hdr < len &&
		    *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
			padding ^= NET_IP_ALIGN;
	}

	if (ieee80211_has_a4(hdr->frame_control))
		padding ^= NET_IP_ALIGN;

	return padding;
#endif
}

#define __RADIO_TAP_SIZE_RSV	32

static void _rtl_rx_completed(struct urb *_urb)
{
	struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context;
	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	int err = 0;

	if (unlikely(IS_USB_STOP(rtlusb)))
		goto free;

	if (likely(0 == _urb->status)) {
		unsigned int padding;
		struct sk_buff *skb;
		unsigned int qlen;
		unsigned int size = _urb->actual_length;
		struct ieee80211_hdr *hdr;

		if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) {
			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
				 "Too short packet from bulk IN! (len: %d)\n",
				 size);
			goto resubmit;
		}

		qlen = skb_queue_len(&rtlusb->rx_queue);
		if (qlen >= __RX_SKB_MAX_QUEUED) {
			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
				 "Pending RX skbuff queue full! (qlen: %d)\n",
				 qlen);
			goto resubmit;
		}

		hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE);
		padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE);

		skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding);
		if (!skb) {
			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
				 "Can't allocate skb for bulk IN!\n");
			goto resubmit;
		}

		_rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);

		/* Make sure the payload data is 4 byte aligned. */
		skb_reserve(skb, padding);

		/* reserve some space for mac80211's radiotap */
		skb_reserve(skb, __RADIO_TAP_SIZE_RSV);

		memcpy(skb_put(skb, size), _urb->transfer_buffer, size);

		skb_queue_tail(&rtlusb->rx_queue, skb);
		tasklet_schedule(&rtlusb->rx_work_tasklet);

		goto resubmit;
	}

	switch (_urb->status) {
	/* disconnect */
	case -ENOENT:
	case -ECONNRESET:
	case -ENODEV:
	case -ESHUTDOWN:
		goto free;
	default:
		break;
	}

resubmit:
	usb_anchor_urb(_urb, &rtlusb->rx_submitted);
	err = usb_submit_urb(_urb, GFP_ATOMIC);
	if (unlikely(err)) {
		usb_unanchor_urb(_urb);
		goto free;
	}
	return;

free:
	/* On some architectures, usb_free_coherent must not be called from
	 * hardirq context. Queue urb to cleanup list.
	 */
	usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs);
}

#undef __RADIO_TAP_SIZE_RSV

static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	struct urb *urb;

	usb_kill_anchored_urbs(&rtlusb->rx_submitted);

	tasklet_kill(&rtlusb->rx_work_tasklet);
	cancel_work_sync(&rtlpriv->works.lps_change_work);

	flush_workqueue(rtlpriv->works.rtl_wq);
	destroy_workqueue(rtlpriv->works.rtl_wq);

	skb_queue_purge(&rtlusb->rx_queue);

	while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
		usb_free_coherent(urb->dev, urb->transfer_buffer_length,
				urb->transfer_buffer, urb->transfer_dma);
		usb_free_urb(urb);
	}
}

static int _rtl_usb_receive(struct ieee80211_hw *hw)
{
	struct urb *urb;
	int err;
	int i;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	WARN_ON(0 == rtlusb->rx_urb_num);
	/* 1600 == 1514 + max WLAN header + rtk info */
	WARN_ON(rtlusb->rx_max_size < 1600);

	for (i = 0; i < rtlusb->rx_urb_num; i++) {
		err = -ENOMEM;
		urb = usb_alloc_urb(0, GFP_KERNEL);
		if (!urb) {
			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
				 "Failed to alloc URB!!\n");
			goto err_out;
		}

		err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
		if (err < 0) {
			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
				 "Failed to prep_rx_urb!!\n");
			usb_free_urb(urb);
			goto err_out;
		}

		usb_anchor_urb(urb, &rtlusb->rx_submitted);
		err = usb_submit_urb(urb, GFP_KERNEL);
		if (err)
			goto err_out;
		usb_free_urb(urb);
	}
	return 0;

err_out:
	usb_kill_anchored_urbs(&rtlusb->rx_submitted);
	_rtl_usb_cleanup_rx(hw);
	return err;
}

static int rtl_usb_start(struct ieee80211_hw *hw)
{
	int err;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	err = rtlpriv->cfg->ops->hw_init(hw);
	if (!err) {
		rtl_init_rx_config(hw);

		/* Enable software */
		SET_USB_START(rtlusb);
		/* should after adapter start and interrupt enable. */
		set_hal_start(rtlhal);

		/* Start bulk IN */
		err = _rtl_usb_receive(hw);
	}

	return err;
}
/**
 *
 *
 */

/*=======================  tx =========================================*/
static void rtl_usb_cleanup(struct ieee80211_hw *hw)
{
	u32 i;
	struct sk_buff *_skb;
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	struct ieee80211_tx_info *txinfo;

	/* clean up rx stuff. */
	_rtl_usb_cleanup_rx(hw);

	/* clean up tx stuff */
	for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
		while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
			rtlusb->usb_tx_cleanup(hw, _skb);
			txinfo = IEEE80211_SKB_CB(_skb);
			ieee80211_tx_info_clear_status(txinfo);
			txinfo->flags |= IEEE80211_TX_STAT_ACK;
			ieee80211_tx_status_irqsafe(hw, _skb);
		}
		usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
	}
	usb_kill_anchored_urbs(&rtlusb->tx_submitted);
}

/**
 *
 * We may add some struct into struct rtl_usb later. Do deinit here.
 *
 */
static void rtl_usb_deinit(struct ieee80211_hw *hw)
{
	rtl_usb_cleanup(hw);
}

static void rtl_usb_stop(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	/* should after adapter start and interrupt enable. */
	set_hal_stop(rtlhal);
	cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
	/* Enable software */
	SET_USB_STOP(rtlusb);
	rtlpriv->cfg->ops->hw_disable(hw);
}

static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
{
	int err;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	usb_anchor_urb(_urb, &rtlusb->tx_submitted);
	err = usb_submit_urb(_urb, GFP_ATOMIC);
	if (err < 0) {
		struct sk_buff *skb;

		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
			 "Failed to submit urb\n");
		usb_unanchor_urb(_urb);
		skb = (struct sk_buff *)_urb->context;
		kfree_skb(skb);
	}
	usb_free_urb(_urb);
}

static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
			struct sk_buff *skb)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	struct ieee80211_tx_info *txinfo;

	rtlusb->usb_tx_post_hdl(hw, urb, skb);
	skb_pull(skb, RTL_TX_HEADER_SIZE);
	txinfo = IEEE80211_SKB_CB(skb);
	ieee80211_tx_info_clear_status(txinfo);
	txinfo->flags |= IEEE80211_TX_STAT_ACK;

	if (urb->status) {
		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
			 "Urb has error status 0x%X\n", urb->status);
		goto out;
	}
	/*  TODO:	statistics */
out:
	ieee80211_tx_status_irqsafe(hw, skb);
	return urb->status;
}

static void _rtl_tx_complete(struct urb *urb)
{
	struct sk_buff *skb = (struct sk_buff *)urb->context;
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
	int err;

	if (unlikely(IS_USB_STOP(rtlusb)))
		return;
	err = _usb_tx_post(hw, urb, skb);
	if (err) {
		/* Ignore error and keep issuiing other urbs */
		return;
	}
}

static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
				struct sk_buff *skb, u32 ep_num)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	struct urb *_urb;

	WARN_ON(NULL == skb);
	_urb = usb_alloc_urb(0, GFP_ATOMIC);
	if (!_urb) {
		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
			 "Can't allocate URB for bulk out!\n");
		kfree_skb(skb);
		return NULL;
	}
	_rtl_install_trx_info(rtlusb, skb, ep_num);
	usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
			  ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
	_urb->transfer_flags |= URB_ZERO_PACKET;
	return _urb;
}

static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
		       enum rtl_txq qnum)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	u32 ep_num;
	struct urb *_urb = NULL;
	struct sk_buff *_skb = NULL;

	WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
	if (unlikely(IS_USB_STOP(rtlusb))) {
		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
			 "USB device is stopping...\n");
		kfree_skb(skb);
		return;
	}
	ep_num = rtlusb->ep_map.ep_mapping[qnum];
	_skb = skb;
	_urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
	if (unlikely(!_urb)) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "Can't allocate urb. Drop skb!\n");
		kfree_skb(skb);
		return;
	}
	_rtl_submit_tx_urb(hw, _urb);
}

static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw,
				   struct ieee80211_sta *sta,
				   struct sk_buff *skb,
				   u16 hw_queue)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	struct rtl_tx_desc *pdesc = NULL;
	struct rtl_tcb_desc tcb_desc;
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
	__le16 fc = hdr->frame_control;
	u8 *pda_addr = hdr->addr1;
	/* ssn */
	u8 *qc = NULL;
	u8 tid = 0;
	u16 seq_number = 0;

	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
	if (ieee80211_is_auth(fc)) {
		RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
		rtl_ips_nic_on(hw);
	}

	if (rtlpriv->psc.sw_ps_enabled) {
		if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
		    !ieee80211_has_pm(fc))
			hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
	}

	rtl_action_proc(hw, skb, true);
	if (is_multicast_ether_addr(pda_addr))
		rtlpriv->stats.txbytesmulticast += skb->len;
	else if (is_broadcast_ether_addr(pda_addr))
		rtlpriv->stats.txbytesbroadcast += skb->len;
	else
		rtlpriv->stats.txbytesunicast += skb->len;
	if (ieee80211_is_data_qos(fc)) {
		qc = ieee80211_get_qos_ctl(hdr);
		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
		seq_number = (le16_to_cpu(hdr->seq_ctrl) &
			     IEEE80211_SCTL_SEQ) >> 4;
		seq_number += 1;
		seq_number <<= 4;
	}
	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, NULL, info, sta, skb,
					hw_queue, &tcb_desc);
	if (!ieee80211_has_morefrags(hdr->frame_control)) {
		if (qc)
			mac->tids[tid].seq_number = seq_number;
	}
	if (ieee80211_is_data(fc))
		rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
}

static int rtl_usb_tx(struct ieee80211_hw *hw,
		      struct ieee80211_sta *sta,
		      struct sk_buff *skb,
		      struct rtl_tcb_desc *dummy)
{
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
	__le16 fc = hdr->frame_control;
	u16 hw_queue;

	if (unlikely(is_hal_stop(rtlhal)))
		goto err_free;
	hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
	_rtl_usb_tx_preprocess(hw, sta, skb, hw_queue);
	_rtl_usb_transmit(hw, skb, hw_queue);
	return NETDEV_TX_OK;

err_free:
	dev_kfree_skb_any(skb);
	return NETDEV_TX_OK;
}

static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
					struct ieee80211_sta *sta,
					struct sk_buff *skb)
{
	return false;
}

static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work)
{
	struct rtl_works *rtlworks =
	    container_of(work, struct rtl_works, fill_h2c_cmd);
	struct ieee80211_hw *hw = rtlworks->hw;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask);
}

static struct rtl_intf_ops rtl_usb_ops = {
	.adapter_start = rtl_usb_start,
	.adapter_stop = rtl_usb_stop,
	.adapter_tx = rtl_usb_tx,
	.waitq_insert = rtl_usb_tx_chk_waitq_insert,
};

int rtl_usb_probe(struct usb_interface *intf,
		  const struct usb_device_id *id,
		  struct rtl_hal_cfg *rtl_hal_cfg)
{
	int err;
	struct ieee80211_hw *hw = NULL;
	struct rtl_priv *rtlpriv = NULL;
	struct usb_device	*udev;
	struct rtl_usb_priv *usb_priv;

	hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
				sizeof(struct rtl_usb_priv), &rtl_ops);
	if (!hw) {
		RT_ASSERT(false, "ieee80211 alloc failed\n");
		return -ENOMEM;
	}
	rtlpriv = hw->priv;
	rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
				    GFP_KERNEL);
	if (!rtlpriv->usb_data)
		return -ENOMEM;

	/* this spin lock must be initialized early */
	spin_lock_init(&rtlpriv->locks.usb_lock);
	INIT_WORK(&rtlpriv->works.fill_h2c_cmd,
		  rtl_fill_h2c_cmd_work_callback);
	INIT_WORK(&rtlpriv->works.lps_change_work,
		  rtl_lps_change_work_callback);

	rtlpriv->usb_data_index = 0;
	init_completion(&rtlpriv->firmware_loading_complete);
	SET_IEEE80211_DEV(hw, &intf->dev);
	udev = interface_to_usbdev(intf);
	usb_get_dev(udev);
	usb_priv = rtl_usbpriv(hw);
	memset(usb_priv, 0, sizeof(*usb_priv));
	usb_priv->dev.intf = intf;
	usb_priv->dev.udev = udev;
	usb_set_intfdata(intf, hw);
	/* init cfg & intf_ops */
	rtlpriv->rtlhal.interface = INTF_USB;
	rtlpriv->cfg = rtl_hal_cfg;
	rtlpriv->intf_ops = &rtl_usb_ops;
	rtl_dbgp_flag_init(hw);
	/* Init IO handler */
	_rtl_usb_io_handler_init(&udev->dev, hw);
	rtlpriv->cfg->ops->read_chip_version(hw);
	/*like read eeprom and so on */
	rtlpriv->cfg->ops->read_eeprom_info(hw);
	err = _rtl_usb_init(hw);
	if (err)
		goto error_out;
	rtl_usb_init_sw(hw);
	/* Init mac80211 sw */
	err = rtl_init_core(hw);
	if (err) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "Can't allocate sw for mac80211\n");
		goto error_out;
	}
	if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
		goto error_out;
	}
	rtlpriv->cfg->ops->init_sw_leds(hw);

	err = ieee80211_register_hw(hw);
	if (err) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "Can't register mac80211 hw.\n");
		err = -ENODEV;
		goto error_out;
	}
	rtlpriv->mac80211.mac80211_registered = 1;

	set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
	return 0;

error_out:
	rtl_deinit_core(hw);
	_rtl_usb_io_handler_release(hw);
	usb_put_dev(udev);
	complete(&rtlpriv->firmware_loading_complete);
	return -ENODEV;
}
EXPORT_SYMBOL(rtl_usb_probe);

void rtl_usb_disconnect(struct usb_interface *intf)
{
	struct ieee80211_hw *hw = usb_get_intfdata(intf);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	if (unlikely(!rtlpriv))
		return;
	/* just in case driver is removed before firmware callback */
	wait_for_completion(&rtlpriv->firmware_loading_complete);
	clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
	/*ieee80211_unregister_hw will call ops_stop */
	if (rtlmac->mac80211_registered == 1) {
		ieee80211_unregister_hw(hw);
		rtlmac->mac80211_registered = 0;
	} else {
		rtl_deinit_deferred_work(hw);
		rtlpriv->intf_ops->adapter_stop(hw);
	}
	/*deinit rfkill */
	/* rtl_deinit_rfkill(hw); */
	rtl_usb_deinit(hw);
	rtl_deinit_core(hw);
	kfree(rtlpriv->usb_data);
	rtlpriv->cfg->ops->deinit_sw_leds(hw);
	rtlpriv->cfg->ops->deinit_sw_vars(hw);
	_rtl_usb_io_handler_release(hw);
	usb_put_dev(rtlusb->udev);
	usb_set_intfdata(intf, NULL);
	ieee80211_free_hw(hw);
}
EXPORT_SYMBOL(rtl_usb_disconnect);

int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
{
	return 0;
}
EXPORT_SYMBOL(rtl_usb_suspend);

int rtl_usb_resume(struct usb_interface *pusb_intf)
{
	return 0;
}
EXPORT_SYMBOL(rtl_usb_resume);