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