1 /* SPDX-License-Identifier: GPL-2.0 */
2 /******************************************************************************
3  *
4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5  *
6  * Modifications for inclusion into the Linux staging tree are
7  * Copyright(c) 2010 Larry Finger. All rights reserved.
8  *
9  * Contact information:
10  * WLAN FAE <wlanfae@realtek.com>
11  * Larry Finger <Larry.Finger@lwfinger.net>
12  *
13  ******************************************************************************/
14 #ifndef _RTL871X_XMIT_H_
15 #define _RTL871X_XMIT_H_
16 
17 #include "osdep_service.h"
18 #include "drv_types.h"
19 #include "xmit_osdep.h"
20 
21 #ifdef CONFIG_R8712_TX_AGGR
22 #define MAX_XMITBUF_SZ  (16384)
23 #else
24 #define MAX_XMITBUF_SZ  (2048)
25 #endif
26 
27 #define NR_XMITBUFF     (4)
28 
29 #ifdef CONFIG_R8712_TX_AGGR
30 #define AGGR_NR_HIGH_BOUND      (4) /*(8) */
31 #define AGGR_NR_LOW_BOUND       (2)
32 #endif
33 
34 #define XMITBUF_ALIGN_SZ 512
35 #define TX_GUARD_BAND		5
36 #define MAX_NUMBLKS		(1)
37 
38 /* Fixed the Big Endian bug when using the software driver encryption.*/
39 #define WEP_IV(pattrib_iv, txpn, keyidx)\
40 do { \
41 	pattrib_iv[0] = txpn._byte_.TSC0;\
42 	pattrib_iv[1] = txpn._byte_.TSC1;\
43 	pattrib_iv[2] = txpn._byte_.TSC2;\
44 	pattrib_iv[3] = ((keyidx & 0x3) << 6);\
45 	txpn.val = (txpn.val == 0xffffff) ? 0 : (txpn.val+1);\
46 } while (0)
47 
48 /* Fixed the Big Endian bug when doing the Tx.
49  * The Linksys WRH54G will check this.
50  */
51 #define TKIP_IV(pattrib_iv, txpn, keyidx)\
52 do { \
53 	pattrib_iv[0] = txpn._byte_.TSC1;\
54 	pattrib_iv[1] = (txpn._byte_.TSC1 | 0x20) & 0x7f;\
55 	pattrib_iv[2] = txpn._byte_.TSC0;\
56 	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
57 	pattrib_iv[4] = txpn._byte_.TSC2;\
58 	pattrib_iv[5] = txpn._byte_.TSC3;\
59 	pattrib_iv[6] = txpn._byte_.TSC4;\
60 	pattrib_iv[7] = txpn._byte_.TSC5;\
61 	txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
62 	(txpn.val+1);\
63 } while (0)
64 
65 #define AES_IV(pattrib_iv, txpn, keyidx)\
66 do { \
67 	pattrib_iv[0] = txpn._byte_.TSC0;\
68 	pattrib_iv[1] = txpn._byte_.TSC1;\
69 	pattrib_iv[2] = 0;\
70 	pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
71 	pattrib_iv[4] = txpn._byte_.TSC2;\
72 	pattrib_iv[5] = txpn._byte_.TSC3;\
73 	pattrib_iv[6] = txpn._byte_.TSC4;\
74 	pattrib_iv[7] = txpn._byte_.TSC5;\
75 	txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
76 	(txpn.val+1);\
77 } while (0)
78 
79 struct hw_xmit {
80 	spinlock_t xmit_lock;
81 	struct list_head pending;
82 	struct  __queue *sta_queue;
83 	struct hw_txqueue *phwtxqueue;
84 	sint	txcmdcnt;
85 	int	accnt;
86 };
87 
88 struct pkt_attrib {
89 	u8	type;
90 	u8	subtype;
91 	u8	bswenc;
92 	u8	dhcp_pkt;
93 
94 	u16	seqnum;
95 	u16	ether_type;
96 	u16	pktlen;		/* the original 802.3 pkt raw_data len
97 				 * (not include ether_hdr data)
98 				 */
99 	u16	last_txcmdsz;
100 
101 	u8	pkt_hdrlen;	/*the original 802.3 pkt header len*/
102 	u8	hdrlen;		/*the WLAN Header Len*/
103 	u8	nr_frags;
104 	u8	ack_policy;
105 	u8	mac_id;
106 	u8	vcs_mode;	/*virtual carrier sense method*/
107 	u8	pctrl;/*per packet txdesc control enable*/
108 	u8	qsel;
109 
110 	u8	priority;
111 	u8	encrypt;	/* when 0 indicate no encrypt. when non-zero,
112 				 * indicate the encrypt algorithm
113 				 */
114 	u8	iv_len;
115 	u8	icv_len;
116 	unsigned char iv[8];
117 	unsigned char icv[8];
118 	u8	dst[ETH_ALEN] __aligned(2);	/* for ether_addr_copy */
119 	u8	src[ETH_ALEN];
120 	u8	ta[ETH_ALEN];
121 	u8	ra[ETH_ALEN];
122 	struct sta_info *psta;
123 };
124 
125 #define WLANHDR_OFFSET	64
126 #define DATA_FRAMETAG		0x01
127 #define L2_FRAMETAG		0x02
128 #define MGNT_FRAMETAG		0x03
129 #define AMSDU_FRAMETAG	0x04
130 #define EII_FRAMETAG		0x05
131 #define IEEE8023_FRAMETAG  0x06
132 #define MP_FRAMETAG		0x07
133 #define TXAGG_FRAMETAG	0x08
134 
135 struct xmit_buf {
136 	struct list_head list;
137 
138 	u8 *pallocated_buf;
139 	u8 *pbuf;
140 	void *priv_data;
141 	struct urb *pxmit_urb[8];
142 	u32 aggr_nr;
143 };
144 
145 struct xmit_frame {
146 	struct list_head list;
147 	struct pkt_attrib attrib;
148 	_pkt *pkt;
149 	int frame_tag;
150 	struct _adapter *padapter;
151 	u8 *buf_addr;
152 	struct xmit_buf *pxmitbuf;
153 	u8 *mem_addr;
154 	u16 sz[8];
155 	struct urb *pxmit_urb[8];
156 	u8 bpending[8];
157 	u8 last[8];
158 };
159 
160 struct tx_servq {
161 	struct list_head tx_pending;
162 	struct  __queue	sta_pending;
163 	int qcnt;
164 };
165 
166 struct sta_xmit_priv {
167 	spinlock_t lock;
168 	sint	option;
169 	sint	apsd_setting;	/* When bit mask is on, the associated edca
170 				 * queue supports APSD.
171 				 */
172 	struct tx_servq	be_q;	/* priority == 0,3 */
173 	struct tx_servq	bk_q;	/* priority == 1,2*/
174 	struct tx_servq	vi_q;	/*priority == 4,5*/
175 	struct tx_servq	vo_q;	/*priority == 6,7*/
176 	struct list_head  legacy_dz;
177 	struct list_head apsd;
178 	u16 txseq_tid[16];
179 	uint	sta_tx_bytes;
180 	u64	sta_tx_pkts;
181 	uint	sta_tx_fail;
182 };
183 
184 struct	hw_txqueue {
185 	/*volatile*/ sint	head;
186 	/*volatile*/ sint	tail;
187 	/*volatile*/ sint	free_sz;	/*in units of 64 bytes*/
188 	/*volatile*/ sint      free_cmdsz;
189 	/*volatile*/ sint	 txsz[8];
190 	uint	ff_hwaddr;
191 	uint	cmd_hwaddr;
192 	sint	ac_tag;
193 };
194 
195 struct	xmit_priv {
196 	spinlock_t lock;
197 	struct  __queue	be_pending;
198 	struct  __queue	bk_pending;
199 	struct  __queue	vi_pending;
200 	struct  __queue	vo_pending;
201 	struct  __queue	bm_pending;
202 	struct  __queue	legacy_dz_queue;
203 	struct  __queue	apsd_queue;
204 	u8 *pallocated_frame_buf;
205 	u8 *pxmit_frame_buf;
206 	uint free_xmitframe_cnt;
207 	uint mapping_addr;
208 	uint pkt_sz;
209 	struct  __queue	free_xmit_queue;
210 	struct	hw_txqueue	be_txqueue;
211 	struct	hw_txqueue	bk_txqueue;
212 	struct	hw_txqueue	vi_txqueue;
213 	struct	hw_txqueue	vo_txqueue;
214 	struct	hw_txqueue	bmc_txqueue;
215 	uint	frag_len;
216 	struct _adapter	*adapter;
217 	u8   vcs_setting;
218 	u8	vcs;
219 	u8	vcs_type;
220 	u16  rts_thresh;
221 	uint	tx_bytes;
222 	u64	tx_pkts;
223 	uint	tx_drop;
224 	struct hw_xmit *hwxmits;
225 	u8	hwxmit_entry;
226 	u8	txirp_cnt;
227 	struct tasklet_struct xmit_tasklet;
228 	struct work_struct xmit_pipe4_reset_wi;
229 	struct work_struct xmit_pipe6_reset_wi;
230 	struct work_struct xmit_piped_reset_wi;
231 	/*per AC pending irp*/
232 	int beq_cnt;
233 	int bkq_cnt;
234 	int viq_cnt;
235 	int voq_cnt;
236 	struct  __queue	free_amsdu_xmit_queue;
237 	u8 *pallocated_amsdu_frame_buf;
238 	u8 *pxmit_amsdu_frame_buf;
239 	uint free_amsdu_xmitframe_cnt;
240 	struct  __queue free_txagg_xmit_queue;
241 	u8 *pallocated_txagg_frame_buf;
242 	u8 *pxmit_txagg_frame_buf;
243 	uint free_txagg_xmitframe_cnt;
244 	int cmdseq;
245 	struct  __queue free_xmitbuf_queue;
246 	struct  __queue pending_xmitbuf_queue;
247 	u8 *pallocated_xmitbuf;
248 	u8 *pxmitbuf;
249 	uint free_xmitbuf_cnt;
250 };
251 
252 void r8712_free_xmitbuf(struct xmit_priv *pxmitpriv,
253 			struct xmit_buf *pxmitbuf);
254 struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv);
255 void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len);
256 struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv);
257 void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
258 			  struct xmit_frame *pxmitframe);
259 void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv,
260 				struct  __queue *pframequeue);
261 int r8712_xmit_classifier(struct _adapter *padapter,
262 			  struct xmit_frame *pxmitframe);
263 sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
264 			      struct xmit_frame *pxmitframe);
265 sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
266 void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv);
267 int r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
268 			struct pkt_attrib *pattrib);
269 int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
270 				  struct pkt_attrib *pattrib);
271 int _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
272 			  struct _adapter *padapter);
273 void _free_xmit_priv(struct xmit_priv *pxmitpriv);
274 void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
275 			     struct xmit_frame *pxmitframe);
276 int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
277 int r8712_xmit_enqueue(struct _adapter *padapter,
278 		       struct xmit_frame *pxmitframe);
279 void r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
280 void r8712_xmit_bh(struct tasklet_struct *t);
281 
282 void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe,
283 			struct xmit_buf *pxmitbuf);
284 
285 #include "rtl8712_xmit.h"
286 
287 #endif	/*_RTL871X_XMIT_H_*/
288 
289