Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * rtl871x_xmit.c |
| 3 | * |
| 4 | * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. |
| 5 | * Linux device driver for RTL8192SU |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 19 | * |
| 20 | * Modifications for inclusion into the Linux staging tree are |
| 21 | * Copyright(c) 2010 Larry Finger. All rights reserved. |
| 22 | * |
| 23 | * Contact information: |
| 24 | * WLAN FAE <wlanfae@realtek.com> |
| 25 | * Larry Finger <Larry.Finger@lwfinger.net> |
| 26 | * |
| 27 | ******************************************************************************/ |
| 28 | |
| 29 | #define _RTL871X_XMIT_C_ |
| 30 | |
| 31 | #include "osdep_service.h" |
| 32 | #include "drv_types.h" |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 33 | #include "wifi.h" |
| 34 | #include "osdep_intf.h" |
| 35 | #include "usb_ops.h" |
| 36 | |
| 37 | |
| 38 | static const u8 P802_1H_OUI[P80211_OUI_LEN] = {0x00, 0x00, 0xf8}; |
| 39 | static const u8 RFC1042_OUI[P80211_OUI_LEN] = {0x00, 0x00, 0x00}; |
| 40 | static void init_hwxmits(struct hw_xmit *phwxmit, sint entry); |
| 41 | static void alloc_hwxmits(struct _adapter *padapter); |
| 42 | static void free_hwxmits(struct _adapter *padapter); |
| 43 | |
| 44 | static void _init_txservq(struct tx_servq *ptxservq) |
| 45 | { |
| 46 | _init_listhead(&ptxservq->tx_pending); |
| 47 | _init_queue(&ptxservq->sta_pending); |
| 48 | ptxservq->qcnt = 0; |
| 49 | } |
| 50 | |
| 51 | void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv) |
| 52 | { |
| 53 | memset((unsigned char *)psta_xmitpriv, 0, |
| 54 | sizeof(struct sta_xmit_priv)); |
| 55 | spin_lock_init(&psta_xmitpriv->lock); |
| 56 | _init_txservq(&psta_xmitpriv->be_q); |
| 57 | _init_txservq(&psta_xmitpriv->bk_q); |
| 58 | _init_txservq(&psta_xmitpriv->vi_q); |
| 59 | _init_txservq(&psta_xmitpriv->vo_q); |
| 60 | _init_listhead(&psta_xmitpriv->legacy_dz); |
| 61 | _init_listhead(&psta_xmitpriv->apsd); |
| 62 | } |
| 63 | |
| 64 | sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv, |
| 65 | struct _adapter *padapter) |
| 66 | { |
| 67 | sint i; |
| 68 | struct xmit_buf *pxmitbuf; |
| 69 | struct xmit_frame *pxframe; |
| 70 | |
| 71 | memset((unsigned char *)pxmitpriv, 0, sizeof(struct xmit_priv)); |
| 72 | spin_lock_init(&pxmitpriv->lock); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 73 | /* |
Justin P. Mattock | be10ac2 | 2012-05-07 07:38:22 -0700 | [diff] [blame] | 74 | Please insert all the queue initialization using _init_queue below |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 75 | */ |
| 76 | pxmitpriv->adapter = padapter; |
| 77 | _init_queue(&pxmitpriv->be_pending); |
| 78 | _init_queue(&pxmitpriv->bk_pending); |
| 79 | _init_queue(&pxmitpriv->vi_pending); |
| 80 | _init_queue(&pxmitpriv->vo_pending); |
| 81 | _init_queue(&pxmitpriv->bm_pending); |
| 82 | _init_queue(&pxmitpriv->legacy_dz_queue); |
| 83 | _init_queue(&pxmitpriv->apsd_queue); |
| 84 | _init_queue(&pxmitpriv->free_xmit_queue); |
| 85 | /* |
| 86 | Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME, |
| 87 | and initialize free_xmit_frame below. |
| 88 | Please also apply free_txobj to link_up all the xmit_frames... |
| 89 | */ |
Vitaly Osipov | 91d435f | 2014-05-24 18:19:27 +1000 | [diff] [blame] | 90 | pxmitpriv->pallocated_frame_buf = kmalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4, |
| 91 | GFP_ATOMIC); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 92 | if (pxmitpriv->pallocated_frame_buf == NULL) { |
| 93 | pxmitpriv->pxmit_frame_buf = NULL; |
| 94 | return _FAIL; |
| 95 | } |
| 96 | pxmitpriv->pxmit_frame_buf = pxmitpriv->pallocated_frame_buf + 4 - |
| 97 | ((addr_t) (pxmitpriv->pallocated_frame_buf) & 3); |
| 98 | pxframe = (struct xmit_frame *) pxmitpriv->pxmit_frame_buf; |
| 99 | for (i = 0; i < NR_XMITFRAME; i++) { |
| 100 | _init_listhead(&(pxframe->list)); |
| 101 | pxframe->padapter = padapter; |
| 102 | pxframe->frame_tag = DATA_FRAMETAG; |
| 103 | pxframe->pkt = NULL; |
| 104 | pxframe->buf_addr = NULL; |
| 105 | pxframe->pxmitbuf = NULL; |
| 106 | list_insert_tail(&(pxframe->list), |
| 107 | &(pxmitpriv->free_xmit_queue.queue)); |
| 108 | pxframe++; |
| 109 | } |
| 110 | pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME; |
| 111 | /* |
| 112 | init xmit hw_txqueue |
| 113 | */ |
| 114 | _r8712_init_hw_txqueue(&pxmitpriv->be_txqueue, BE_QUEUE_INX); |
| 115 | _r8712_init_hw_txqueue(&pxmitpriv->bk_txqueue, BK_QUEUE_INX); |
| 116 | _r8712_init_hw_txqueue(&pxmitpriv->vi_txqueue, VI_QUEUE_INX); |
| 117 | _r8712_init_hw_txqueue(&pxmitpriv->vo_txqueue, VO_QUEUE_INX); |
| 118 | _r8712_init_hw_txqueue(&pxmitpriv->bmc_txqueue, BMC_QUEUE_INX); |
| 119 | pxmitpriv->frag_len = MAX_FRAG_THRESHOLD; |
| 120 | pxmitpriv->txirp_cnt = 1; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 121 | /*per AC pending irp*/ |
| 122 | pxmitpriv->beq_cnt = 0; |
| 123 | pxmitpriv->bkq_cnt = 0; |
| 124 | pxmitpriv->viq_cnt = 0; |
| 125 | pxmitpriv->voq_cnt = 0; |
| 126 | /*init xmit_buf*/ |
| 127 | _init_queue(&pxmitpriv->free_xmitbuf_queue); |
| 128 | _init_queue(&pxmitpriv->pending_xmitbuf_queue); |
Vitaly Osipov | 91d435f | 2014-05-24 18:19:27 +1000 | [diff] [blame] | 129 | pxmitpriv->pallocated_xmitbuf = kmalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4, |
| 130 | GFP_ATOMIC); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 131 | if (pxmitpriv->pallocated_xmitbuf == NULL) |
| 132 | return _FAIL; |
| 133 | pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 - |
| 134 | ((addr_t)(pxmitpriv->pallocated_xmitbuf) & 3); |
| 135 | pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf; |
| 136 | for (i = 0; i < NR_XMITBUFF; i++) { |
| 137 | _init_listhead(&pxmitbuf->list); |
Vitaly Osipov | 91d435f | 2014-05-24 18:19:27 +1000 | [diff] [blame] | 138 | pxmitbuf->pallocated_buf = kmalloc(MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ, |
| 139 | GFP_ATOMIC); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 140 | if (pxmitbuf->pallocated_buf == NULL) |
| 141 | return _FAIL; |
| 142 | pxmitbuf->pbuf = pxmitbuf->pallocated_buf + XMITBUF_ALIGN_SZ - |
| 143 | ((addr_t) (pxmitbuf->pallocated_buf) & |
| 144 | (XMITBUF_ALIGN_SZ - 1)); |
| 145 | r8712_xmit_resource_alloc(padapter, pxmitbuf); |
| 146 | list_insert_tail(&pxmitbuf->list, |
| 147 | &(pxmitpriv->free_xmitbuf_queue.queue)); |
| 148 | pxmitbuf++; |
| 149 | } |
| 150 | pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF; |
Ali Bahar | f95302e | 2011-09-04 03:14:18 +0800 | [diff] [blame] | 151 | _init_workitem(&padapter->wkFilterRxFF0, r8712_SetFilter, padapter); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 152 | alloc_hwxmits(padapter); |
| 153 | init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry); |
| 154 | tasklet_init(&pxmitpriv->xmit_tasklet, |
Ali Bahar | f95302e | 2011-09-04 03:14:18 +0800 | [diff] [blame] | 155 | (void(*)(unsigned long))r8712_xmit_bh, |
| 156 | (unsigned long)padapter); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 157 | return _SUCCESS; |
| 158 | } |
| 159 | |
| 160 | void _free_xmit_priv(struct xmit_priv *pxmitpriv) |
| 161 | { |
| 162 | int i; |
| 163 | struct _adapter *padapter = pxmitpriv->adapter; |
| 164 | struct xmit_frame *pxmitframe = (struct xmit_frame *) |
| 165 | pxmitpriv->pxmit_frame_buf; |
| 166 | struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf; |
| 167 | |
| 168 | if (pxmitpriv->pxmit_frame_buf == NULL) |
| 169 | return; |
| 170 | for (i = 0; i < NR_XMITFRAME; i++) { |
| 171 | r8712_xmit_complete(padapter, pxmitframe); |
| 172 | pxmitframe++; |
| 173 | } |
| 174 | for (i = 0; i < NR_XMITBUFF; i++) { |
| 175 | r8712_xmit_resource_free(padapter, pxmitbuf); |
| 176 | kfree(pxmitbuf->pallocated_buf); |
| 177 | pxmitbuf++; |
| 178 | } |
| 179 | kfree(pxmitpriv->pallocated_frame_buf); |
| 180 | kfree(pxmitpriv->pallocated_xmitbuf); |
| 181 | free_hwxmits(padapter); |
| 182 | } |
| 183 | |
| 184 | sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt, |
| 185 | struct pkt_attrib *pattrib) |
| 186 | { |
| 187 | uint i; |
| 188 | struct pkt_file pktfile; |
| 189 | struct sta_info *psta = NULL; |
| 190 | struct ethhdr etherhdr; |
| 191 | |
| 192 | struct tx_cmd txdesc; |
| 193 | |
| 194 | sint bmcast; |
| 195 | struct sta_priv *pstapriv = &padapter->stapriv; |
| 196 | struct security_priv *psecuritypriv = &padapter->securitypriv; |
| 197 | struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
| 198 | struct qos_priv *pqospriv = &pmlmepriv->qospriv; |
| 199 | |
| 200 | _r8712_open_pktfile(pkt, &pktfile); |
| 201 | |
| 202 | i = _r8712_pktfile_read(&pktfile, (unsigned char *)ðerhdr, ETH_HLEN); |
| 203 | |
| 204 | pattrib->ether_type = ntohs(etherhdr.h_proto); |
| 205 | |
| 206 | { |
| 207 | u8 bool; |
| 208 | /*If driver xmit ARP packet, driver can set ps mode to initial |
| 209 | * setting. It stands for getting DHCP or fix IP.*/ |
| 210 | if (pattrib->ether_type == 0x0806) { |
| 211 | if (padapter->pwrctrlpriv.pwr_mode != |
| 212 | padapter->registrypriv.power_mgnt) { |
| 213 | _cancel_timer(&(pmlmepriv->dhcp_timer), &bool); |
| 214 | r8712_set_ps_mode(padapter, padapter->registrypriv. |
| 215 | power_mgnt, padapter->registrypriv.smart_ps); |
| 216 | } |
| 217 | } |
| 218 | } |
| 219 | memcpy(pattrib->dst, ðerhdr.h_dest, ETH_ALEN); |
| 220 | memcpy(pattrib->src, ðerhdr.h_source, ETH_ALEN); |
| 221 | pattrib->pctrl = 0; |
| 222 | if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) || |
| 223 | (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) { |
| 224 | memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); |
| 225 | memcpy(pattrib->ta, pattrib->src, ETH_ALEN); |
| 226 | } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { |
| 227 | memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN); |
| 228 | memcpy(pattrib->ta, pattrib->src, ETH_ALEN); |
| 229 | } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
| 230 | memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); |
| 231 | memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN); |
| 232 | } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) { |
| 233 | /*firstly, filter packet not belongs to mp*/ |
| 234 | if (pattrib->ether_type != 0x8712) |
| 235 | return _FAIL; |
| 236 | /* for mp storing the txcmd per packet, |
| 237 | * according to the info of txcmd to update pattrib */ |
| 238 | /*get MP_TXDESC_SIZE bytes txcmd per packet*/ |
| 239 | i = _r8712_pktfile_read(&pktfile, (u8 *)&txdesc, TXDESC_SIZE); |
| 240 | memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); |
| 241 | memcpy(pattrib->ta, pattrib->src, ETH_ALEN); |
| 242 | pattrib->pctrl = 1; |
| 243 | } |
| 244 | /* r8712_xmitframe_coalesce() overwrite this!*/ |
| 245 | pattrib->pktlen = pktfile.pkt_len; |
| 246 | if (ETH_P_IP == pattrib->ether_type) { |
| 247 | /* The following is for DHCP and ARP packet, we use cck1M to |
| 248 | * tx these packets and let LPS awake some time |
| 249 | * to prevent DHCP protocol fail */ |
| 250 | u8 tmp[24]; |
| 251 | _r8712_pktfile_read(&pktfile, &tmp[0], 24); |
| 252 | pattrib->dhcp_pkt = 0; |
| 253 | if (pktfile.pkt_len > 282) {/*MINIMUM_DHCP_PACKET_SIZE)*/ |
| 254 | if (ETH_P_IP == pattrib->ether_type) {/* IP header*/ |
| 255 | if (((tmp[21] == 68) && (tmp[23] == 67)) || |
| 256 | ((tmp[21] == 67) && (tmp[23] == 68))) { |
| 257 | /* 68 : UDP BOOTP client |
| 258 | * 67 : UDP BOOTP server |
| 259 | * Use low rate to send DHCP packet.*/ |
| 260 | pattrib->dhcp_pkt = 1; |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | bmcast = IS_MCAST(pattrib->ra); |
| 266 | /* get sta_info*/ |
| 267 | if (bmcast) { |
| 268 | psta = r8712_get_bcmc_stainfo(padapter); |
| 269 | pattrib->mac_id = 4; |
| 270 | } else { |
| 271 | if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) { |
| 272 | psta = r8712_get_stainfo(pstapriv, |
| 273 | get_bssid(pmlmepriv)); |
| 274 | pattrib->mac_id = 5; |
| 275 | } else { |
| 276 | psta = r8712_get_stainfo(pstapriv, pattrib->ra); |
| 277 | if (psta == NULL) /* drop the pkt */ |
| 278 | return _FAIL; |
| 279 | if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) |
| 280 | pattrib->mac_id = 5; |
| 281 | else |
| 282 | pattrib->mac_id = psta->mac_id; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | if (psta) { |
| 287 | pattrib->psta = psta; |
| 288 | } else { |
| 289 | /* if we cannot get psta => drrp the pkt */ |
| 290 | return _FAIL; |
| 291 | } |
| 292 | |
| 293 | pattrib->ack_policy = 0; |
| 294 | /* get ether_hdr_len */ |
| 295 | pattrib->pkt_hdrlen = ETH_HLEN; |
| 296 | |
| 297 | if (pqospriv->qos_option) |
| 298 | r8712_set_qos(&pktfile, pattrib); |
| 299 | else { |
| 300 | pattrib->hdrlen = WLAN_HDR_A3_LEN; |
| 301 | pattrib->subtype = WIFI_DATA_TYPE; |
| 302 | pattrib->priority = 0; |
| 303 | } |
| 304 | if (psta->ieee8021x_blocked == true) { |
| 305 | pattrib->encrypt = 0; |
| 306 | if ((pattrib->ether_type != 0x888e) && |
| 307 | (check_fwstate(pmlmepriv, WIFI_MP_STATE) == false)) |
| 308 | return _FAIL; |
| 309 | } else |
| 310 | GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast); |
| 311 | switch (pattrib->encrypt) { |
| 312 | case _WEP40_: |
| 313 | case _WEP104_: |
| 314 | pattrib->iv_len = 4; |
| 315 | pattrib->icv_len = 4; |
| 316 | break; |
| 317 | case _TKIP_: |
| 318 | pattrib->iv_len = 8; |
| 319 | pattrib->icv_len = 4; |
| 320 | if (padapter->securitypriv.busetkipkey == _FAIL) |
| 321 | return _FAIL; |
| 322 | break; |
| 323 | case _AES_: |
| 324 | pattrib->iv_len = 8; |
| 325 | pattrib->icv_len = 8; |
| 326 | break; |
| 327 | default: |
| 328 | pattrib->iv_len = 0; |
| 329 | pattrib->icv_len = 0; |
| 330 | break; |
| 331 | } |
| 332 | |
| 333 | if (pattrib->encrypt && |
| 334 | ((padapter->securitypriv.sw_encrypt == true) || |
| 335 | (psecuritypriv->hw_decrypted == false))) |
| 336 | pattrib->bswenc = true; |
| 337 | else |
| 338 | pattrib->bswenc = false; |
| 339 | /* if in MP_STATE, update pkt_attrib from mp_txcmd, and overwrite |
| 340 | * some settings above.*/ |
| 341 | if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) |
| 342 | pattrib->priority = (txdesc.txdw1 >> QSEL_SHT) & 0x1f; |
| 343 | return _SUCCESS; |
| 344 | } |
| 345 | |
| 346 | static sint xmitframe_addmic(struct _adapter *padapter, |
| 347 | struct xmit_frame *pxmitframe) |
| 348 | { |
| 349 | u32 curfragnum, length, datalen; |
| 350 | u8 *pframe, *payload, mic[8]; |
| 351 | struct mic_data micdata; |
| 352 | struct sta_info *stainfo; |
| 353 | struct qos_priv *pqospriv = &(padapter->mlmepriv.qospriv); |
| 354 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 355 | struct security_priv *psecuritypriv = &padapter->securitypriv; |
| 356 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 357 | u8 priority[4] = {0x0, 0x0, 0x0, 0x0}; |
| 358 | sint bmcst = IS_MCAST(pattrib->ra); |
| 359 | |
| 360 | if (pattrib->psta) |
| 361 | stainfo = pattrib->psta; |
| 362 | else |
| 363 | stainfo = r8712_get_stainfo(&padapter->stapriv, |
| 364 | &pattrib->ra[0]); |
| 365 | if (pattrib->encrypt == _TKIP_) { |
| 366 | /*encode mic code*/ |
| 367 | if (stainfo != NULL) { |
| 368 | u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, |
| 369 | 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, |
| 370 | 0x0, 0x0}; |
| 371 | datalen = pattrib->pktlen - pattrib->hdrlen; |
Joe Perches | 859171c | 2010-11-14 19:04:48 -0800 | [diff] [blame] | 372 | pframe = pxmitframe->buf_addr + TXDESC_OFFSET; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 373 | if (bmcst) { |
| 374 | if (!memcmp(psecuritypriv->XGrptxmickey |
| 375 | [psecuritypriv->XGrpKeyid].skey, |
| 376 | null_key, 16)) |
| 377 | return _FAIL; |
| 378 | /*start to calculate the mic code*/ |
| 379 | r8712_secmicsetkey(&micdata, |
| 380 | psecuritypriv-> |
| 381 | XGrptxmickey[psecuritypriv-> |
| 382 | XGrpKeyid].skey); |
| 383 | } else { |
| 384 | if (!memcmp(&stainfo->tkiptxmickey.skey[0], |
| 385 | null_key, 16)) |
| 386 | return _FAIL; |
| 387 | /* start to calculate the mic code */ |
| 388 | r8712_secmicsetkey(&micdata, |
| 389 | &stainfo->tkiptxmickey.skey[0]); |
| 390 | } |
| 391 | if (pframe[1] & 1) { /* ToDS==1 */ |
| 392 | r8712_secmicappend(&micdata, |
| 393 | &pframe[16], 6); /*DA*/ |
| 394 | if (pframe[1]&2) /* From Ds==1 */ |
| 395 | r8712_secmicappend(&micdata, |
| 396 | &pframe[24], 6); |
| 397 | else |
| 398 | r8712_secmicappend(&micdata, |
| 399 | &pframe[10], 6); |
| 400 | } else { /* ToDS==0 */ |
| 401 | r8712_secmicappend(&micdata, |
| 402 | &pframe[4], 6); /* DA */ |
| 403 | if (pframe[1]&2) /* From Ds==1 */ |
| 404 | r8712_secmicappend(&micdata, |
| 405 | &pframe[16], 6); |
| 406 | else |
| 407 | r8712_secmicappend(&micdata, |
| 408 | &pframe[10], 6); |
| 409 | } |
| 410 | if (pqospriv->qos_option == 1) |
| 411 | priority[0] = (u8)pxmitframe-> |
| 412 | attrib.priority; |
| 413 | r8712_secmicappend(&micdata, &priority[0], 4); |
| 414 | payload = pframe; |
| 415 | for (curfragnum = 0; curfragnum < pattrib->nr_frags; |
| 416 | curfragnum++) { |
| 417 | payload = (u8 *)RND4((addr_t)(payload)); |
| 418 | payload = payload+pattrib-> |
| 419 | hdrlen+pattrib->iv_len; |
| 420 | if ((curfragnum + 1) == pattrib->nr_frags) { |
| 421 | length = pattrib->last_txcmdsz - |
| 422 | pattrib->hdrlen - |
| 423 | pattrib->iv_len - |
| 424 | ((psecuritypriv->sw_encrypt) |
| 425 | ? pattrib->icv_len : 0); |
| 426 | r8712_secmicappend(&micdata, payload, |
| 427 | length); |
| 428 | payload = payload+length; |
| 429 | } else{ |
| 430 | length = pxmitpriv->frag_len - |
| 431 | pattrib->hdrlen-pattrib->iv_len - |
| 432 | ((psecuritypriv->sw_encrypt) ? |
| 433 | pattrib->icv_len : 0); |
| 434 | r8712_secmicappend(&micdata, payload, |
| 435 | length); |
| 436 | payload = payload + length + |
| 437 | pattrib->icv_len; |
| 438 | } |
| 439 | } |
| 440 | r8712_secgetmic(&micdata, &(mic[0])); |
| 441 | /* add mic code and add the mic code length in |
| 442 | * last_txcmdsz */ |
| 443 | memcpy(payload, &(mic[0]), 8); |
| 444 | pattrib->last_txcmdsz += 8; |
| 445 | payload = payload-pattrib->last_txcmdsz + 8; |
| 446 | } |
| 447 | } |
| 448 | return _SUCCESS; |
| 449 | } |
| 450 | |
| 451 | static sint xmitframe_swencrypt(struct _adapter *padapter, |
| 452 | struct xmit_frame *pxmitframe) |
| 453 | { |
| 454 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 455 | |
| 456 | if (pattrib->bswenc) { |
| 457 | switch (pattrib->encrypt) { |
| 458 | case _WEP40_: |
| 459 | case _WEP104_: |
| 460 | r8712_wep_encrypt(padapter, (u8 *)pxmitframe); |
| 461 | break; |
| 462 | case _TKIP_: |
| 463 | r8712_tkip_encrypt(padapter, (u8 *)pxmitframe); |
| 464 | break; |
| 465 | case _AES_: |
| 466 | r8712_aes_encrypt(padapter, (u8 *)pxmitframe); |
| 467 | break; |
| 468 | default: |
| 469 | break; |
| 470 | } |
| 471 | } |
| 472 | return _SUCCESS; |
| 473 | } |
| 474 | |
| 475 | static sint make_wlanhdr(struct _adapter *padapter , u8 *hdr, |
| 476 | struct pkt_attrib *pattrib) |
| 477 | { |
| 478 | u16 *qc; |
| 479 | |
| 480 | struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr; |
| 481 | struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
| 482 | struct qos_priv *pqospriv = &pmlmepriv->qospriv; |
| 483 | u16 *fctrl = &pwlanhdr->frame_ctl; |
| 484 | memset(hdr, 0, WLANHDR_OFFSET); |
| 485 | SetFrameSubType(fctrl, pattrib->subtype); |
| 486 | if (pattrib->subtype & WIFI_DATA_TYPE) { |
| 487 | if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)) { |
| 488 | /* to_ds = 1, fr_ds = 0; */ |
| 489 | SetToDs(fctrl); |
| 490 | memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), |
| 491 | ETH_ALEN); |
| 492 | memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN); |
| 493 | memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN); |
| 494 | } else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true)) { |
| 495 | /* to_ds = 0, fr_ds = 1; */ |
| 496 | SetFrDs(fctrl); |
| 497 | memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN); |
| 498 | memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), |
| 499 | ETH_ALEN); |
| 500 | memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN); |
| 501 | } else if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) |
| 502 | || (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) |
| 503 | == true)) { |
| 504 | memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN); |
| 505 | memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN); |
| 506 | memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), |
| 507 | ETH_ALEN); |
| 508 | } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) { |
| 509 | memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN); |
| 510 | memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN); |
| 511 | memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), |
| 512 | ETH_ALEN); |
| 513 | } else |
| 514 | return _FAIL; |
| 515 | |
| 516 | if (pattrib->encrypt) |
| 517 | SetPrivacy(fctrl); |
| 518 | if (pqospriv->qos_option) { |
| 519 | qc = (unsigned short *)(hdr + pattrib->hdrlen - 2); |
| 520 | if (pattrib->priority) |
| 521 | SetPriority(qc, pattrib->priority); |
| 522 | SetAckpolicy(qc, pattrib->ack_policy); |
| 523 | } |
| 524 | /* TODO: fill HT Control Field */ |
| 525 | /* Update Seq Num will be handled by f/w */ |
| 526 | { |
| 527 | struct sta_info *psta; |
| 528 | |
| 529 | sint bmcst = IS_MCAST(pattrib->ra); |
| 530 | if (pattrib->psta) |
| 531 | psta = pattrib->psta; |
| 532 | else { |
| 533 | if (bmcst) |
| 534 | psta = r8712_get_bcmc_stainfo(padapter); |
| 535 | else |
| 536 | psta = |
| 537 | r8712_get_stainfo(&padapter->stapriv, |
| 538 | pattrib->ra); |
| 539 | } |
| 540 | if (psta) { |
| 541 | psta->sta_xmitpriv.txseq_tid |
| 542 | [pattrib->priority]++; |
| 543 | psta->sta_xmitpriv.txseq_tid[pattrib->priority] |
| 544 | &= 0xFFF; |
| 545 | pattrib->seqnum = psta->sta_xmitpriv. |
| 546 | txseq_tid[pattrib->priority]; |
| 547 | SetSeqNum(hdr, pattrib->seqnum); |
| 548 | } |
| 549 | } |
| 550 | } |
| 551 | return _SUCCESS; |
| 552 | } |
| 553 | |
| 554 | static sint r8712_put_snap(u8 *data, u16 h_proto) |
| 555 | { |
| 556 | struct ieee80211_snap_hdr *snap; |
| 557 | const u8 *oui; |
| 558 | |
| 559 | snap = (struct ieee80211_snap_hdr *)data; |
| 560 | snap->dsap = 0xaa; |
| 561 | snap->ssap = 0xaa; |
| 562 | snap->ctrl = 0x03; |
| 563 | if (h_proto == 0x8137 || h_proto == 0x80f3) |
| 564 | oui = P802_1H_OUI; |
| 565 | else |
| 566 | oui = RFC1042_OUI; |
| 567 | snap->oui[0] = oui[0]; |
| 568 | snap->oui[1] = oui[1]; |
| 569 | snap->oui[2] = oui[2]; |
| 570 | *(u16 *)(data + SNAP_SIZE) = htons(h_proto); |
| 571 | return SNAP_SIZE + sizeof(u16); |
| 572 | } |
| 573 | |
| 574 | /* |
| 575 | * This sub-routine will perform all the following: |
| 576 | * 1. remove 802.3 header. |
| 577 | * 2. create wlan_header, based on the info in pxmitframe |
| 578 | * 3. append sta's iv/ext-iv |
| 579 | * 4. append LLC |
| 580 | * 5. move frag chunk from pframe to pxmitframe->mem |
| 581 | * 6. apply sw-encrypt, if necessary. |
| 582 | */ |
| 583 | sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt, |
| 584 | struct xmit_frame *pxmitframe) |
| 585 | { |
| 586 | struct pkt_file pktfile; |
| 587 | |
| 588 | sint frg_len, mpdu_len, llc_sz; |
| 589 | u32 mem_sz; |
| 590 | u8 frg_inx; |
| 591 | addr_t addr; |
| 592 | u8 *pframe, *mem_start, *ptxdesc; |
| 593 | struct sta_info *psta; |
| 594 | struct security_priv *psecuritypriv = &padapter->securitypriv; |
| 595 | struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
| 596 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 597 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 598 | u8 *pbuf_start; |
| 599 | sint bmcst = IS_MCAST(pattrib->ra); |
| 600 | |
| 601 | if (pattrib->psta == NULL) |
| 602 | return _FAIL; |
| 603 | psta = pattrib->psta; |
| 604 | if (pxmitframe->buf_addr == NULL) |
| 605 | return _FAIL; |
| 606 | pbuf_start = pxmitframe->buf_addr; |
| 607 | ptxdesc = pbuf_start; |
| 608 | mem_start = pbuf_start + TXDESC_OFFSET; |
| 609 | if (make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) |
| 610 | return _FAIL; |
| 611 | _r8712_open_pktfile(pkt, &pktfile); |
Ali Bahar | f95302e | 2011-09-04 03:14:18 +0800 | [diff] [blame] | 612 | _r8712_pktfile_read(&pktfile, NULL, (uint) pattrib->pkt_hdrlen); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 613 | if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) { |
| 614 | /* truncate TXDESC_SIZE bytes txcmd if at mp mode for 871x */ |
| 615 | if (pattrib->ether_type == 0x8712) { |
| 616 | /* take care - update_txdesc overwrite this */ |
| 617 | _r8712_pktfile_read(&pktfile, ptxdesc, TXDESC_SIZE); |
| 618 | } |
| 619 | } |
| 620 | pattrib->pktlen = pktfile.pkt_len; |
| 621 | frg_inx = 0; |
| 622 | frg_len = pxmitpriv->frag_len - 4; |
| 623 | while (1) { |
| 624 | llc_sz = 0; |
| 625 | mpdu_len = frg_len; |
| 626 | pframe = mem_start; |
| 627 | SetMFrag(mem_start); |
| 628 | pframe += pattrib->hdrlen; |
| 629 | mpdu_len -= pattrib->hdrlen; |
| 630 | /* adding icv, if necessary...*/ |
| 631 | if (pattrib->iv_len) { |
| 632 | if (psta != NULL) { |
| 633 | switch (pattrib->encrypt) { |
| 634 | case _WEP40_: |
| 635 | case _WEP104_: |
| 636 | WEP_IV(pattrib->iv, psta->txpn, |
| 637 | (u8)psecuritypriv-> |
| 638 | PrivacyKeyIndex); |
| 639 | break; |
| 640 | case _TKIP_: |
| 641 | if (bmcst) |
| 642 | TKIP_IV(pattrib->iv, |
| 643 | psta->txpn, |
| 644 | (u8)psecuritypriv-> |
| 645 | XGrpKeyid); |
| 646 | else |
| 647 | TKIP_IV(pattrib->iv, psta->txpn, |
| 648 | 0); |
| 649 | break; |
| 650 | case _AES_: |
| 651 | if (bmcst) |
| 652 | AES_IV(pattrib->iv, psta->txpn, |
| 653 | (u8)psecuritypriv-> |
| 654 | XGrpKeyid); |
| 655 | else |
| 656 | AES_IV(pattrib->iv, psta->txpn, |
| 657 | 0); |
| 658 | break; |
| 659 | } |
| 660 | } |
| 661 | memcpy(pframe, pattrib->iv, pattrib->iv_len); |
| 662 | pframe += pattrib->iv_len; |
| 663 | mpdu_len -= pattrib->iv_len; |
| 664 | } |
| 665 | if (frg_inx == 0) { |
| 666 | llc_sz = r8712_put_snap(pframe, pattrib->ether_type); |
| 667 | pframe += llc_sz; |
| 668 | mpdu_len -= llc_sz; |
| 669 | } |
| 670 | if ((pattrib->icv_len > 0) && (pattrib->bswenc)) |
| 671 | mpdu_len -= pattrib->icv_len; |
| 672 | if (bmcst) |
| 673 | mem_sz = _r8712_pktfile_read(&pktfile, pframe, |
| 674 | pattrib->pktlen); |
| 675 | else |
| 676 | mem_sz = _r8712_pktfile_read(&pktfile, pframe, |
| 677 | mpdu_len); |
| 678 | pframe += mem_sz; |
| 679 | if ((pattrib->icv_len > 0) && (pattrib->bswenc)) { |
| 680 | memcpy(pframe, pattrib->icv, pattrib->icv_len); |
| 681 | pframe += pattrib->icv_len; |
| 682 | } |
| 683 | frg_inx++; |
| 684 | if (bmcst || (r8712_endofpktfile(&pktfile) == true)) { |
| 685 | pattrib->nr_frags = frg_inx; |
| 686 | pattrib->last_txcmdsz = pattrib->hdrlen + |
| 687 | pattrib->iv_len + |
| 688 | ((pattrib->nr_frags == 1) ? |
| 689 | llc_sz : 0) + |
| 690 | ((pattrib->bswenc) ? |
| 691 | pattrib->icv_len : 0) + mem_sz; |
| 692 | ClearMFrag(mem_start); |
| 693 | break; |
| 694 | } |
| 695 | addr = (addr_t)(pframe); |
| 696 | mem_start = (unsigned char *)RND4(addr) + TXDESC_OFFSET; |
| 697 | memcpy(mem_start, pbuf_start + TXDESC_OFFSET, pattrib->hdrlen); |
| 698 | } |
| 699 | |
| 700 | if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) |
| 701 | return _FAIL; |
| 702 | xmitframe_swencrypt(padapter, pxmitframe); |
| 703 | return _SUCCESS; |
| 704 | } |
| 705 | |
| 706 | void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len) |
| 707 | { |
| 708 | uint protection; |
| 709 | u8 *perp; |
| 710 | sint erp_len; |
| 711 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 712 | struct registry_priv *pregistrypriv = &padapter->registrypriv; |
| 713 | |
| 714 | switch (pxmitpriv->vcs_setting) { |
| 715 | case DISABLE_VCS: |
| 716 | pxmitpriv->vcs = NONE_VCS; |
| 717 | break; |
| 718 | case ENABLE_VCS: |
| 719 | break; |
| 720 | case AUTO_VCS: |
| 721 | default: |
| 722 | perp = r8712_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len); |
| 723 | if (perp == NULL) |
| 724 | pxmitpriv->vcs = NONE_VCS; |
| 725 | else { |
| 726 | protection = (*(perp + 2)) & BIT(1); |
| 727 | if (protection) { |
| 728 | if (pregistrypriv->vcs_type == RTS_CTS) |
| 729 | pxmitpriv->vcs = RTS_CTS; |
| 730 | else |
| 731 | pxmitpriv->vcs = CTS_TO_SELF; |
| 732 | } else |
| 733 | pxmitpriv->vcs = NONE_VCS; |
| 734 | } |
| 735 | break; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv) |
| 740 | { |
| 741 | unsigned long irqL; |
| 742 | struct xmit_buf *pxmitbuf = NULL; |
| 743 | struct list_head *plist, *phead; |
| 744 | struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue; |
| 745 | |
| 746 | spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL); |
| 747 | if (_queue_empty(pfree_xmitbuf_queue) == true) |
| 748 | pxmitbuf = NULL; |
| 749 | else { |
| 750 | phead = get_list_head(pfree_xmitbuf_queue); |
| 751 | plist = get_next(phead); |
| 752 | pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list); |
| 753 | list_delete(&(pxmitbuf->list)); |
| 754 | } |
| 755 | if (pxmitbuf != NULL) |
| 756 | pxmitpriv->free_xmitbuf_cnt--; |
| 757 | spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL); |
| 758 | return pxmitbuf; |
| 759 | } |
| 760 | |
| 761 | int r8712_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf) |
| 762 | { |
| 763 | unsigned long irqL; |
| 764 | struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue; |
| 765 | |
| 766 | if (pxmitbuf == NULL) |
| 767 | return _FAIL; |
| 768 | spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL); |
| 769 | list_delete(&pxmitbuf->list); |
| 770 | list_insert_tail(&(pxmitbuf->list), get_list_head(pfree_xmitbuf_queue)); |
| 771 | pxmitpriv->free_xmitbuf_cnt++; |
| 772 | spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL); |
| 773 | return _SUCCESS; |
| 774 | } |
| 775 | |
| 776 | /* |
| 777 | Calling context: |
| 778 | 1. OS_TXENTRY |
| 779 | 2. RXENTRY (rx_thread or RX_ISR/RX_CallBack) |
| 780 | |
| 781 | If we turn on USE_RXTHREAD, then, no need for critical section. |
| 782 | Otherwise, we must use _enter/_exit critical to protect free_xmit_queue... |
| 783 | |
| 784 | Must be very very cautious... |
| 785 | |
| 786 | */ |
| 787 | |
| 788 | struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv) |
| 789 | { |
| 790 | /* |
| 791 | Please remember to use all the osdep_service api, |
| 792 | and lock/unlock or _enter/_exit critical to protect |
| 793 | pfree_xmit_queue |
| 794 | */ |
| 795 | unsigned long irqL; |
| 796 | struct xmit_frame *pxframe = NULL; |
| 797 | struct list_head *plist, *phead; |
| 798 | struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue; |
| 799 | |
| 800 | spin_lock_irqsave(&pfree_xmit_queue->lock, irqL); |
| 801 | if (_queue_empty(pfree_xmit_queue) == true) |
| 802 | pxframe = NULL; |
| 803 | else { |
| 804 | phead = get_list_head(pfree_xmit_queue); |
| 805 | plist = get_next(phead); |
| 806 | pxframe = LIST_CONTAINOR(plist, struct xmit_frame, list); |
| 807 | list_delete(&(pxframe->list)); |
| 808 | } |
| 809 | if (pxframe != NULL) { |
| 810 | pxmitpriv->free_xmitframe_cnt--; |
| 811 | pxframe->buf_addr = NULL; |
| 812 | pxframe->pxmitbuf = NULL; |
| 813 | pxframe->attrib.psta = NULL; |
| 814 | pxframe->pkt = NULL; |
| 815 | } |
| 816 | spin_unlock_irqrestore(&pfree_xmit_queue->lock, irqL); |
| 817 | return pxframe; |
| 818 | } |
| 819 | |
| 820 | void r8712_free_xmitframe(struct xmit_priv *pxmitpriv, |
| 821 | struct xmit_frame *pxmitframe) |
| 822 | { |
| 823 | unsigned long irqL; |
| 824 | struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue; |
| 825 | struct _adapter *padapter = pxmitpriv->adapter; |
Ali Bahar | f95302e | 2011-09-04 03:14:18 +0800 | [diff] [blame] | 826 | struct sk_buff *pndis_pkt = NULL; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 827 | |
| 828 | if (pxmitframe == NULL) |
| 829 | return; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 830 | spin_lock_irqsave(&pfree_xmit_queue->lock, irqL); |
| 831 | list_delete(&pxmitframe->list); |
Ali Bahar | f95302e | 2011-09-04 03:14:18 +0800 | [diff] [blame] | 832 | if (pxmitframe->pkt) { |
| 833 | pndis_pkt = pxmitframe->pkt; |
| 834 | pxmitframe->pkt = NULL; |
| 835 | } |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 836 | list_insert_tail(&pxmitframe->list, get_list_head(pfree_xmit_queue)); |
| 837 | pxmitpriv->free_xmitframe_cnt++; |
| 838 | spin_unlock_irqrestore(&pfree_xmit_queue->lock, irqL); |
| 839 | if (netif_queue_stopped(padapter->pnetdev)) |
| 840 | netif_wake_queue(padapter->pnetdev); |
| 841 | } |
| 842 | |
| 843 | void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv, |
| 844 | struct xmit_frame *pxmitframe) |
| 845 | { |
| 846 | if (pxmitframe == NULL) |
| 847 | return; |
| 848 | if (pxmitframe->frame_tag == DATA_FRAMETAG) |
| 849 | r8712_free_xmitframe(pxmitpriv, pxmitframe); |
| 850 | } |
| 851 | |
| 852 | void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv, |
| 853 | struct __queue *pframequeue) |
| 854 | { |
| 855 | unsigned long irqL; |
| 856 | struct list_head *plist, *phead; |
| 857 | struct xmit_frame *pxmitframe; |
| 858 | |
| 859 | spin_lock_irqsave(&(pframequeue->lock), irqL); |
| 860 | phead = get_list_head(pframequeue); |
| 861 | plist = get_next(phead); |
| 862 | while (end_of_queue_search(phead, plist) == false) { |
| 863 | pxmitframe = LIST_CONTAINOR(plist, struct xmit_frame, list); |
| 864 | plist = get_next(plist); |
| 865 | r8712_free_xmitframe(pxmitpriv, pxmitframe); |
| 866 | } |
| 867 | spin_unlock_irqrestore(&(pframequeue->lock), irqL); |
| 868 | } |
| 869 | |
| 870 | static inline struct tx_servq *get_sta_pending(struct _adapter *padapter, |
| 871 | struct __queue **ppstapending, |
| 872 | struct sta_info *psta, sint up) |
| 873 | { |
| 874 | |
| 875 | struct tx_servq *ptxservq; |
| 876 | struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits; |
| 877 | |
| 878 | switch (up) { |
| 879 | case 1: |
| 880 | case 2: |
| 881 | ptxservq = &(psta->sta_xmitpriv.bk_q); |
| 882 | *ppstapending = &padapter->xmitpriv.bk_pending; |
| 883 | (phwxmits+3)->accnt++; |
| 884 | break; |
| 885 | case 4: |
| 886 | case 5: |
| 887 | ptxservq = &(psta->sta_xmitpriv.vi_q); |
| 888 | *ppstapending = &padapter->xmitpriv.vi_pending; |
| 889 | (phwxmits+1)->accnt++; |
| 890 | break; |
| 891 | case 6: |
| 892 | case 7: |
| 893 | ptxservq = &(psta->sta_xmitpriv.vo_q); |
| 894 | *ppstapending = &padapter->xmitpriv.vo_pending; |
| 895 | (phwxmits+0)->accnt++; |
| 896 | break; |
| 897 | case 0: |
| 898 | case 3: |
| 899 | default: |
| 900 | ptxservq = &(psta->sta_xmitpriv.be_q); |
| 901 | *ppstapending = &padapter->xmitpriv.be_pending; |
| 902 | (phwxmits + 2)->accnt++; |
| 903 | break; |
| 904 | } |
| 905 | return ptxservq; |
| 906 | } |
| 907 | |
| 908 | /* |
| 909 | * Will enqueue pxmitframe to the proper queue, and indicate it |
| 910 | * to xx_pending list..... |
| 911 | */ |
| 912 | sint r8712_xmit_classifier(struct _adapter *padapter, |
| 913 | struct xmit_frame *pxmitframe) |
| 914 | { |
| 915 | unsigned long irqL0; |
| 916 | struct __queue *pstapending; |
| 917 | struct sta_info *psta; |
| 918 | struct tx_servq *ptxservq; |
| 919 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 920 | struct sta_priv *pstapriv = &padapter->stapriv; |
| 921 | struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
| 922 | sint bmcst = IS_MCAST(pattrib->ra); |
| 923 | |
| 924 | if (pattrib->psta) |
| 925 | psta = pattrib->psta; |
| 926 | else { |
| 927 | if (bmcst) |
| 928 | psta = r8712_get_bcmc_stainfo(padapter); |
| 929 | else { |
| 930 | if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) |
| 931 | psta = r8712_get_stainfo(pstapriv, |
| 932 | get_bssid(pmlmepriv)); |
| 933 | else |
| 934 | psta = r8712_get_stainfo(pstapriv, pattrib->ra); |
| 935 | } |
| 936 | } |
| 937 | if (psta == NULL) |
| 938 | return _FAIL; |
| 939 | ptxservq = get_sta_pending(padapter, &pstapending, |
| 940 | psta, pattrib->priority); |
| 941 | spin_lock_irqsave(&pstapending->lock, irqL0); |
| 942 | if (is_list_empty(&ptxservq->tx_pending)) |
| 943 | list_insert_tail(&ptxservq->tx_pending, |
| 944 | get_list_head(pstapending)); |
| 945 | list_insert_tail(&pxmitframe->list, |
| 946 | get_list_head(&ptxservq->sta_pending)); |
| 947 | ptxservq->qcnt++; |
| 948 | spin_unlock_irqrestore(&pstapending->lock, irqL0); |
| 949 | return _SUCCESS; |
| 950 | } |
| 951 | |
| 952 | static void alloc_hwxmits(struct _adapter *padapter) |
| 953 | { |
| 954 | struct hw_xmit *hwxmits; |
| 955 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 956 | |
| 957 | pxmitpriv->hwxmit_entry = HWXMIT_ENTRY; |
Vitaly Osipov | 91d435f | 2014-05-24 18:19:27 +1000 | [diff] [blame] | 958 | pxmitpriv->hwxmits = kmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry, |
| 959 | GFP_ATOMIC); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 960 | if (pxmitpriv->hwxmits == NULL) |
| 961 | return; |
| 962 | hwxmits = pxmitpriv->hwxmits; |
| 963 | if (pxmitpriv->hwxmit_entry == 5) { |
| 964 | pxmitpriv->bmc_txqueue.head = 0; |
| 965 | hwxmits[0] .phwtxqueue = &pxmitpriv->bmc_txqueue; |
| 966 | hwxmits[0] .sta_queue = &pxmitpriv->bm_pending; |
| 967 | pxmitpriv->vo_txqueue.head = 0; |
| 968 | hwxmits[1] .phwtxqueue = &pxmitpriv->vo_txqueue; |
| 969 | hwxmits[1] .sta_queue = &pxmitpriv->vo_pending; |
| 970 | pxmitpriv->vi_txqueue.head = 0; |
| 971 | hwxmits[2] .phwtxqueue = &pxmitpriv->vi_txqueue; |
| 972 | hwxmits[2] .sta_queue = &pxmitpriv->vi_pending; |
| 973 | pxmitpriv->bk_txqueue.head = 0; |
| 974 | hwxmits[3] .phwtxqueue = &pxmitpriv->bk_txqueue; |
| 975 | hwxmits[3] .sta_queue = &pxmitpriv->bk_pending; |
| 976 | pxmitpriv->be_txqueue.head = 0; |
| 977 | hwxmits[4] .phwtxqueue = &pxmitpriv->be_txqueue; |
| 978 | hwxmits[4] .sta_queue = &pxmitpriv->be_pending; |
| 979 | } else if (pxmitpriv->hwxmit_entry == 4) { |
| 980 | pxmitpriv->vo_txqueue.head = 0; |
| 981 | hwxmits[0] .phwtxqueue = &pxmitpriv->vo_txqueue; |
| 982 | hwxmits[0] .sta_queue = &pxmitpriv->vo_pending; |
| 983 | pxmitpriv->vi_txqueue.head = 0; |
| 984 | hwxmits[1] .phwtxqueue = &pxmitpriv->vi_txqueue; |
| 985 | hwxmits[1] .sta_queue = &pxmitpriv->vi_pending; |
| 986 | pxmitpriv->be_txqueue.head = 0; |
| 987 | hwxmits[2] .phwtxqueue = &pxmitpriv->be_txqueue; |
| 988 | hwxmits[2] .sta_queue = &pxmitpriv->be_pending; |
| 989 | pxmitpriv->bk_txqueue.head = 0; |
| 990 | hwxmits[3] .phwtxqueue = &pxmitpriv->bk_txqueue; |
| 991 | hwxmits[3] .sta_queue = &pxmitpriv->bk_pending; |
| 992 | } |
| 993 | } |
| 994 | |
| 995 | static void free_hwxmits(struct _adapter *padapter) |
| 996 | { |
| 997 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 998 | |
Alexander Beregalov | 4008386 | 2011-03-26 20:18:14 +0300 | [diff] [blame] | 999 | kfree(pxmitpriv->hwxmits); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1000 | } |
| 1001 | |
| 1002 | static void init_hwxmits(struct hw_xmit *phwxmit, sint entry) |
| 1003 | { |
| 1004 | sint i; |
| 1005 | |
| 1006 | for (i = 0; i < entry; i++, phwxmit++) { |
| 1007 | spin_lock_init(&phwxmit->xmit_lock); |
| 1008 | _init_listhead(&phwxmit->pending); |
| 1009 | phwxmit->txcmdcnt = 0; |
| 1010 | phwxmit->accnt = 0; |
| 1011 | } |
| 1012 | } |
| 1013 | |
Ali Bahar | 07a6b03 | 2011-09-04 03:14:16 +0800 | [diff] [blame] | 1014 | void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe, |
| 1015 | struct xmit_buf *pxmitbuf) |
| 1016 | { |
| 1017 | /* pxmitbuf attach to pxmitframe */ |
| 1018 | pxmitframe->pxmitbuf = pxmitbuf; |
| 1019 | /* urb and irp connection */ |
| 1020 | pxmitframe->pxmit_urb[0] = pxmitbuf->pxmit_urb[0]; |
| 1021 | /* buffer addr assoc */ |
| 1022 | pxmitframe->buf_addr = pxmitbuf->pbuf; |
| 1023 | /* pxmitframe attach to pxmitbuf */ |
| 1024 | pxmitbuf->priv_data = pxmitframe; |
| 1025 | } |
| 1026 | |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1027 | /* |
| 1028 | * tx_action == 0 == no frames to transmit |
| 1029 | * tx_action > 0 ==> we have frames to transmit |
| 1030 | * tx_action < 0 ==> we have frames to transmit, but TXFF is not even enough |
| 1031 | * to transmit 1 frame. |
| 1032 | */ |
| 1033 | |
| 1034 | int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe) |
| 1035 | { |
| 1036 | unsigned long irqL; |
| 1037 | int ret; |
| 1038 | struct xmit_buf *pxmitbuf = NULL; |
| 1039 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 1040 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 1041 | |
| 1042 | r8712_do_queue_select(padapter, pattrib); |
| 1043 | spin_lock_irqsave(&pxmitpriv->lock, irqL); |
| 1044 | if (r8712_txframes_sta_ac_pending(padapter, pattrib) > 0) { |
| 1045 | ret = false; |
| 1046 | r8712_xmit_enqueue(padapter, pxmitframe); |
| 1047 | spin_unlock_irqrestore(&pxmitpriv->lock, irqL); |
| 1048 | return ret; |
| 1049 | } |
| 1050 | pxmitbuf = r8712_alloc_xmitbuf(pxmitpriv); |
| 1051 | if (pxmitbuf == NULL) { /*enqueue packet*/ |
| 1052 | ret = false; |
| 1053 | r8712_xmit_enqueue(padapter, pxmitframe); |
| 1054 | spin_unlock_irqrestore(&pxmitpriv->lock, irqL); |
| 1055 | } else { /*dump packet directly*/ |
| 1056 | spin_unlock_irqrestore(&pxmitpriv->lock, irqL); |
| 1057 | ret = true; |
Ali Bahar | 07a6b03 | 2011-09-04 03:14:16 +0800 | [diff] [blame] | 1058 | xmitframe_xmitbuf_attach(pxmitframe, pxmitbuf); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1059 | r8712_xmit_direct(padapter, pxmitframe); |
| 1060 | } |
| 1061 | return ret; |
| 1062 | } |