1 /****************************************************************************** 2 * 3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * 19 ******************************************************************************/ 20 #ifndef _RTW_XMIT_H_ 21 #define _RTW_XMIT_H_ 22 23 #include <osdep_service.h> 24 #include <drv_types.h> 25 26 #define MAX_XMITBUF_SZ (20480) /* 20k */ 27 #define NR_XMITBUFF (4) 28 29 #define XMITBUF_ALIGN_SZ 4 30 31 /* xmit extension buff defination */ 32 #define MAX_XMIT_EXTBUF_SZ (1536) 33 #define NR_XMIT_EXTBUFF (32) 34 35 #define MAX_NUMBLKS (1) 36 37 #define XMIT_VO_QUEUE (0) 38 #define XMIT_VI_QUEUE (1) 39 #define XMIT_BE_QUEUE (2) 40 #define XMIT_BK_QUEUE (3) 41 42 #define VO_QUEUE_INX 0 43 #define VI_QUEUE_INX 1 44 #define BE_QUEUE_INX 2 45 #define BK_QUEUE_INX 3 46 #define BCN_QUEUE_INX 4 47 #define MGT_QUEUE_INX 5 48 #define HIGH_QUEUE_INX 6 49 #define TXCMD_QUEUE_INX 7 50 51 #define HW_QUEUE_ENTRY 8 52 53 #define WEP_IV(pattrib_iv, dot11txpn, keyidx)\ 54 do {\ 55 pattrib_iv[0] = dot11txpn._byte_.TSC0;\ 56 pattrib_iv[1] = dot11txpn._byte_.TSC1;\ 57 pattrib_iv[2] = dot11txpn._byte_.TSC2;\ 58 pattrib_iv[3] = ((keyidx & 0x3)<<6);\ 59 dot11txpn.val = (dot11txpn.val == 0xffffff) ? 0 : (dot11txpn.val+1);\ 60 } while (0) 61 62 63 #define TKIP_IV(pattrib_iv, dot11txpn, keyidx)\ 64 do {\ 65 pattrib_iv[0] = dot11txpn._byte_.TSC1;\ 66 pattrib_iv[1] = (dot11txpn._byte_.TSC1 | 0x20) & 0x7f;\ 67 pattrib_iv[2] = dot11txpn._byte_.TSC0;\ 68 pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\ 69 pattrib_iv[4] = dot11txpn._byte_.TSC2;\ 70 pattrib_iv[5] = dot11txpn._byte_.TSC3;\ 71 pattrib_iv[6] = dot11txpn._byte_.TSC4;\ 72 pattrib_iv[7] = dot11txpn._byte_.TSC5;\ 73 dot11txpn.val = dot11txpn.val == 0xffffffffffffULL ? 0 : (dot11txpn.val+1);\ 74 } while (0) 75 76 #define AES_IV(pattrib_iv, dot11txpn, keyidx)\ 77 do { \ 78 pattrib_iv[0] = dot11txpn._byte_.TSC0; \ 79 pattrib_iv[1] = dot11txpn._byte_.TSC1; \ 80 pattrib_iv[2] = 0; \ 81 pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6); \ 82 pattrib_iv[4] = dot11txpn._byte_.TSC2; \ 83 pattrib_iv[5] = dot11txpn._byte_.TSC3; \ 84 pattrib_iv[6] = dot11txpn._byte_.TSC4; \ 85 pattrib_iv[7] = dot11txpn._byte_.TSC5; \ 86 dot11txpn.val = dot11txpn.val == 0xffffffffffffULL ? 0 : (dot11txpn.val+1);\ 87 } while (0) 88 89 #define HWXMIT_ENTRY 4 90 91 #define TXDESC_SIZE 32 92 93 #define PACKET_OFFSET_SZ (8) 94 #define TXDESC_OFFSET (TXDESC_SIZE + PACKET_OFFSET_SZ) 95 96 struct tx_desc { 97 /* DWORD 0 */ 98 __le32 txdw0; 99 __le32 txdw1; 100 __le32 txdw2; 101 __le32 txdw3; 102 __le32 txdw4; 103 __le32 txdw5; 104 __le32 txdw6; 105 __le32 txdw7; 106 }; 107 108 struct hw_xmit { 109 struct __queue *sta_queue; 110 int accnt; 111 }; 112 113 /* reduce size */ 114 struct pkt_attrib { 115 u8 type; 116 u8 subtype; 117 u8 bswenc; 118 u8 dhcp_pkt; 119 u16 ether_type; 120 u16 seqnum; 121 u16 pkt_hdrlen; /* the original 802.3 pkt header len */ 122 u16 hdrlen; /* the WLAN Header Len */ 123 u32 pktlen; /* the original 802.3 pkt raw_data len (not include 124 * ether_hdr data) */ 125 u32 last_txcmdsz; 126 u8 nr_frags; 127 u8 encrypt; /* when 0 indicate no encrypt. when non-zero, 128 * indicate the encrypt algorith */ 129 u8 iv_len; 130 u8 icv_len; 131 u8 iv[18]; 132 u8 icv[16]; 133 u8 priority; 134 u8 ack_policy; 135 u8 mac_id; 136 u8 vcs_mode; /* virtual carrier sense method */ 137 u8 dst[ETH_ALEN]; 138 u8 src[ETH_ALEN]; 139 u8 ta[ETH_ALEN]; 140 u8 ra[ETH_ALEN]; 141 u8 key_idx; 142 u8 qos_en; 143 u8 ht_en; 144 u8 raid;/* rate adpative id */ 145 u8 bwmode; 146 u8 ch_offset;/* PRIME_CHNL_OFFSET */ 147 u8 sgi;/* short GI */ 148 u8 ampdu_en;/* tx ampdu enable */ 149 u8 mdata;/* more data bit */ 150 u8 pctrl;/* per packet txdesc control enable */ 151 u8 triggered;/* for ap mode handling Power Saving sta */ 152 u8 qsel; 153 u8 eosp; 154 u8 rate; 155 u8 intel_proxim; 156 u8 retry_ctrl; 157 struct sta_info *psta; 158 }; 159 160 #define WLANHDR_OFFSET 64 161 162 #define NULL_FRAMETAG (0x0) 163 #define DATA_FRAMETAG 0x01 164 #define L2_FRAMETAG 0x02 165 #define MGNT_FRAMETAG 0x03 166 #define AMSDU_FRAMETAG 0x04 167 168 #define EII_FRAMETAG 0x05 169 #define IEEE8023_FRAMETAG 0x06 170 171 #define MP_FRAMETAG 0x07 172 173 #define TXAGG_FRAMETAG 0x08 174 175 struct submit_ctx { 176 u32 submit_time; /* */ 177 u32 timeout_ms; /* <0: not synchronous, 0: wait forever, >0: up to ms waiting */ 178 int status; /* status for operation */ 179 struct completion done; 180 }; 181 182 enum { 183 RTW_SCTX_SUBMITTED = -1, 184 RTW_SCTX_DONE_SUCCESS = 0, 185 RTW_SCTX_DONE_UNKNOWN, 186 RTW_SCTX_DONE_TIMEOUT, 187 RTW_SCTX_DONE_BUF_ALLOC, 188 RTW_SCTX_DONE_BUF_FREE, 189 RTW_SCTX_DONE_WRITE_PORT_ERR, 190 RTW_SCTX_DONE_TX_DESC_NA, 191 RTW_SCTX_DONE_TX_DENY, 192 RTW_SCTX_DONE_CCX_PKT_FAIL, 193 RTW_SCTX_DONE_DRV_STOP, 194 RTW_SCTX_DONE_DEV_REMOVE, 195 }; 196 197 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms); 198 int rtw_sctx_wait(struct submit_ctx *sctx); 199 void rtw_sctx_done_err(struct submit_ctx **sctx, int status); 200 void rtw_sctx_done(struct submit_ctx **sctx); 201 202 struct xmit_buf { 203 struct list_head list; 204 struct adapter *padapter; 205 u8 *pallocated_buf; 206 u8 *pbuf; 207 void *priv_data; 208 u16 ext_tag; /* 0: Normal xmitbuf, 1: extension xmitbuf. */ 209 u16 flags; 210 u32 alloc_sz; 211 u32 len; 212 struct submit_ctx *sctx; 213 u32 ff_hwaddr; 214 struct urb *pxmit_urb[8]; 215 dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */ 216 u8 bpending[8]; 217 int last[8]; 218 }; 219 220 struct xmit_frame { 221 struct list_head list; 222 struct pkt_attrib attrib; 223 struct sk_buff *pkt; 224 int frame_tag; 225 struct adapter *padapter; 226 u8 *buf_addr; 227 struct xmit_buf *pxmitbuf; 228 229 u8 agg_num; 230 s8 pkt_offset; 231 u8 ack_report; 232 }; 233 234 struct tx_servq { 235 struct list_head tx_pending; 236 struct __queue sta_pending; 237 int qcnt; 238 }; 239 240 struct sta_xmit_priv { 241 spinlock_t lock; 242 int option; 243 int apsd_setting; /* When bit mask is on, the associated edca 244 * queue supports APSD. */ 245 struct tx_servq be_q; /* priority == 0,3 */ 246 struct tx_servq bk_q; /* priority == 1,2 */ 247 struct tx_servq vi_q; /* priority == 4,5 */ 248 struct tx_servq vo_q; /* priority == 6,7 */ 249 struct list_head legacy_dz; 250 struct list_head apsd; 251 u16 txseq_tid[16]; 252 }; 253 254 struct hw_txqueue { 255 volatile int head; 256 volatile int tail; 257 volatile int free_sz; /* in units of 64 bytes */ 258 volatile int free_cmdsz; 259 volatile int txsz[8]; 260 uint ff_hwaddr; 261 uint cmd_hwaddr; 262 int ac_tag; 263 }; 264 265 struct agg_pkt_info { 266 u16 offset; 267 u16 pkt_len; 268 }; 269 270 struct xmit_priv { 271 spinlock_t lock; 272 struct semaphore xmit_sema; 273 struct semaphore terminate_xmitthread_sema; 274 struct __queue be_pending; 275 struct __queue bk_pending; 276 struct __queue vi_pending; 277 struct __queue vo_pending; 278 struct __queue bm_pending; 279 u8 *pallocated_frame_buf; 280 u8 *pxmit_frame_buf; 281 uint free_xmitframe_cnt; 282 struct __queue free_xmit_queue; 283 uint frag_len; 284 struct adapter *adapter; 285 u8 vcs_setting; 286 u8 vcs; 287 u8 vcs_type; 288 u64 tx_bytes; 289 u64 tx_pkts; 290 u64 tx_drop; 291 u64 last_tx_bytes; 292 u64 last_tx_pkts; 293 struct hw_xmit *hwxmits; 294 u8 hwxmit_entry; 295 u8 wmm_para_seq[4];/* sequence for wmm ac parameter strength 296 * from large to small. it's value is 0->vo, 297 * 1->vi, 2->be, 3->bk. */ 298 struct semaphore tx_retevt;/* all tx return event; */ 299 u8 txirp_cnt;/* */ 300 struct tasklet_struct xmit_tasklet; 301 /* per AC pending irp */ 302 int beq_cnt; 303 int bkq_cnt; 304 int viq_cnt; 305 int voq_cnt; 306 struct __queue free_xmitbuf_queue; 307 struct __queue pending_xmitbuf_queue; 308 u8 *pallocated_xmitbuf; 309 u8 *pxmitbuf; 310 uint free_xmitbuf_cnt; 311 struct __queue free_xmit_extbuf_queue; 312 u8 *pallocated_xmit_extbuf; 313 u8 *pxmit_extbuf; 314 uint free_xmit_extbuf_cnt; 315 u16 nqos_ssn; 316 int ack_tx; 317 struct mutex ack_tx_mutex; 318 struct submit_ctx ack_tx_ops; 319 }; 320 321 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv); 322 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, 323 struct xmit_buf *pxmitbuf); 324 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv); 325 s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, 326 struct xmit_buf *pxmitbuf); 327 void rtw_count_tx_stats(struct adapter *padapter, 328 struct xmit_frame *pxmitframe, int sz); 329 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len); 330 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, 331 struct pkt_attrib *pattrib); 332 s32 rtw_put_snap(u8 *data, u16 h_proto); 333 334 struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv); 335 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, 336 struct xmit_frame *pxmitframe); 337 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, 338 struct __queue *pframequeue); 339 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, 340 struct sta_info *psta, int up, u8 *ac); 341 s32 rtw_xmitframe_enqueue(struct adapter *padapter, 342 struct xmit_frame *pxmitframe); 343 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, 344 struct hw_xmit *phwxmit_i, int entry); 345 346 s32 rtw_xmit_classifier(struct adapter *padapter, 347 struct xmit_frame *pxmitframe); 348 u32 rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib *pattrib); 349 #define rtw_wlan_pkt_size(f) rtw_calculate_wlan_pkt_size_by_attribue(&f->attrib) 350 s32 rtw_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, 351 struct xmit_frame *pxmitframe); 352 s32 _rtw_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag); 353 void _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv); 354 s32 rtw_txframes_pending(struct adapter *padapter); 355 s32 rtw_txframes_sta_ac_pending(struct adapter *padapter, 356 struct pkt_attrib *pattrib); 357 void rtw_init_hwxmits(struct hw_xmit *phwxmit, int entry); 358 s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter); 359 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv); 360 void rtw_alloc_hwxmits(struct adapter *padapter); 361 void rtw_free_hwxmits(struct adapter *padapter); 362 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **pkt); 363 364 #if defined(CONFIG_88EU_AP_MODE) 365 int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe); 366 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta); 367 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta); 368 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta); 369 #endif 370 371 u8 qos_acm(u8 acm_mask, u8 priority); 372 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe); 373 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms); 374 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status); 375 376 /* include after declaring struct xmit_buf, in order to avoid warning */ 377 #include <xmit_osdep.h> 378 379 #endif /* _RTL871X_XMIT_H_ */ 380