linux/drivers/staging/rtl8712/rtl871x_xmit.h
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   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)\
  40do { \
  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)\
  52do { \
  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)\
  66do { \
  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
  79struct 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
  88struct 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
 135struct 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
 145struct 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
 160struct tx_servq {
 161        struct list_head tx_pending;
 162        struct  __queue sta_pending;
 163        int qcnt;
 164};
 165
 166struct 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
 184struct  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
 195struct  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
 252void r8712_free_xmitbuf(struct xmit_priv *pxmitpriv,
 253                        struct xmit_buf *pxmitbuf);
 254struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv);
 255void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len);
 256struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv);
 257void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
 258                          struct xmit_frame *pxmitframe);
 259void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv,
 260                                struct  __queue *pframequeue);
 261int r8712_xmit_classifier(struct _adapter *padapter,
 262                          struct xmit_frame *pxmitframe);
 263sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
 264                              struct xmit_frame *pxmitframe);
 265sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
 266void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv);
 267int r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
 268                        struct pkt_attrib *pattrib);
 269int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
 270                                  struct pkt_attrib *pattrib);
 271int _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
 272                          struct _adapter *padapter);
 273void _free_xmit_priv(struct xmit_priv *pxmitpriv);
 274void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
 275                             struct xmit_frame *pxmitframe);
 276int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 277int r8712_xmit_enqueue(struct _adapter *padapter,
 278                       struct xmit_frame *pxmitframe);
 279void r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 280void r8712_xmit_bh(struct tasklet_struct *t);
 281
 282void 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