aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/wil6210/txrx.h
blob: 45a61f597c5c03649de38116eecdc880802b4e3f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
/*
 * Copyright (c) 2012 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef WIL6210_TXRX_H
#define WIL6210_TXRX_H

#define BUF_SW_OWNED    (1)
#define BUF_HW_OWNED    (0)

/* size of max. Rx packet */
#define RX_BUF_LEN      (2048)
#define TX_BUF_LEN      (2048)
/* how many bytes to reserve for rtap header? */
#define WIL6210_RTAP_SIZE (128)

/* Tx/Rx path */
/*
 * Tx descriptor - MAC part
 * [dword 0]
 * bit  0.. 9 : lifetime_expiry_value:10
 * bit     10 : interrup_en:1
 * bit     11 : status_en:1
 * bit 12..13 : txss_override:2
 * bit     14 : timestamp_insertion:1
 * bit     15 : duration_preserve:1
 * bit 16..21 : reserved0:6
 * bit 22..26 : mcs_index:5
 * bit     27 : mcs_en:1
 * bit 28..29 : reserved1:2
 * bit     30 : reserved2:1
 * bit     31 : sn_preserved:1
 * [dword 1]
 * bit  0.. 3 : pkt_mode:4
 * bit      4 : pkt_mode_en:1
 * bit  5.. 7 : reserved0:3
 * bit  8..13 : reserved1:6
 * bit     14 : reserved2:1
 * bit     15 : ack_policy_en:1
 * bit 16..19 : dst_index:4
 * bit     20 : dst_index_en:1
 * bit 21..22 : ack_policy:2
 * bit     23 : lifetime_en:1
 * bit 24..30 : max_retry:7
 * bit     31 : max_retry_en:1
 * [dword 2]
 * bit  0.. 7 : num_of_descriptors:8
 * bit  8..17 : reserved:10
 * bit 18..19 : l2_translation_type:2
 * bit     20 : snap_hdr_insertion_en:1
 * bit     21 : vlan_removal_en:1
 * bit 22..31 : reserved0:10
 * [dword 3]
 * bit  0.. 31: ucode_cmd:32
 */
struct vring_tx_mac {
	u32 d[3];
	u32 ucode_cmd;
} __packed;

/* TX MAC Dword 0 */
#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_POS 0
#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_LEN 10
#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_MSK 0x3FF

#define MAC_CFG_DESC_TX_0_INTERRUP_EN_POS 10
#define MAC_CFG_DESC_TX_0_INTERRUP_EN_LEN 1
#define MAC_CFG_DESC_TX_0_INTERRUP_EN_MSK 0x400

#define MAC_CFG_DESC_TX_0_STATUS_EN_POS 11
#define MAC_CFG_DESC_TX_0_STATUS_EN_LEN 1
#define MAC_CFG_DESC_TX_0_STATUS_EN_MSK 0x800

#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_POS 12
#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_LEN 2
#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_MSK 0x3000

#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_POS 14
#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_LEN 1
#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_MSK 0x4000

#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_POS 15
#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_LEN 1
#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_MSK 0x8000

#define MAC_CFG_DESC_TX_0_MCS_INDEX_POS 22
#define MAC_CFG_DESC_TX_0_MCS_INDEX_LEN 5
#define MAC_CFG_DESC_TX_0_MCS_INDEX_MSK 0x7C00000

#define MAC_CFG_DESC_TX_0_MCS_EN_POS 27
#define MAC_CFG_DESC_TX_0_MCS_EN_LEN 1
#define MAC_CFG_DESC_TX_0_MCS_EN_MSK 0x8000000

#define MAC_CFG_DESC_TX_0_SN_PRESERVED_POS 31
#define MAC_CFG_DESC_TX_0_SN_PRESERVED_LEN 1
#define MAC_CFG_DESC_TX_0_SN_PRESERVED_MSK 0x80000000

/* TX MAC Dword 1 */
#define MAC_CFG_DESC_TX_1_PKT_MODE_POS 0
#define MAC_CFG_DESC_TX_1_PKT_MODE_LEN 4
#define MAC_CFG_DESC_TX_1_PKT_MODE_MSK 0xF

#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_POS 4
#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_LEN 1
#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_MSK 0x10

#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_POS 15
#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_LEN 1
#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_MSK 0x8000

#define MAC_CFG_DESC_TX_1_DST_INDEX_POS 16
#define MAC_CFG_DESC_TX_1_DST_INDEX_LEN 4
#define MAC_CFG_DESC_TX_1_DST_INDEX_MSK 0xF0000

#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_POS 20
#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_LEN 1
#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_MSK 0x100000

#define MAC_CFG_DESC_TX_1_ACK_POLICY_POS 21
#define MAC_CFG_DESC_TX_1_ACK_POLICY_LEN 2
#define MAC_CFG_DESC_TX_1_ACK_POLICY_MSK 0x600000

#define MAC_CFG_DESC_TX_1_LIFETIME_EN_POS 23
#define MAC_CFG_DESC_TX_1_LIFETIME_EN_LEN 1
#define MAC_CFG_DESC_TX_1_LIFETIME_EN_MSK 0x800000

#define MAC_CFG_DESC_TX_1_MAX_RETRY_POS 24
#define MAC_CFG_DESC_TX_1_MAX_RETRY_LEN 7
#define MAC_CFG_DESC_TX_1_MAX_RETRY_MSK 0x7F000000

#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_POS 31
#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_LEN 1
#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_MSK 0x80000000

/* TX MAC Dword 2 */
#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS 0
#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_LEN 8
#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_MSK 0xFF

#define MAC_CFG_DESC_TX_2_RESERVED_POS 8
#define MAC_CFG_DESC_TX_2_RESERVED_LEN 10
#define MAC_CFG_DESC_TX_2_RESERVED_MSK 0x3FF00

#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_POS 18
#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_LEN 2
#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_MSK 0xC0000

#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_POS 20
#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_LEN 1
#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_MSK 0x100000

#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_POS 21
#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_LEN 1
#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_MSK 0x200000

/* TX MAC Dword 3 */
#define MAC_CFG_DESC_TX_3_UCODE_CMD_POS 0
#define MAC_CFG_DESC_TX_3_UCODE_CMD_LEN 32
#define MAC_CFG_DESC_TX_3_UCODE_CMD_MSK 0xFFFFFFFF

/* TX DMA Dword 0 */
#define DMA_CFG_DESC_TX_0_L4_LENGTH_POS 0
#define DMA_CFG_DESC_TX_0_L4_LENGTH_LEN 8
#define DMA_CFG_DESC_TX_0_L4_LENGTH_MSK 0xFF

#define DMA_CFG_DESC_TX_0_CMD_EOP_POS 8
#define DMA_CFG_DESC_TX_0_CMD_EOP_LEN 1
#define DMA_CFG_DESC_TX_0_CMD_EOP_MSK 0x100

#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS 10
#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_LEN 1
#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_MSK 0x400

#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_POS 11
#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_LEN 2
#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_MSK 0x1800

#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_POS 13
#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_LEN 1
#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_MSK 0x2000

#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_POS 14
#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_LEN 1
#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_MSK 0x4000

#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_POS 15
#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_LEN 1
#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_MSK 0x8000

#define DMA_CFG_DESC_TX_0_QID_POS 16
#define DMA_CFG_DESC_TX_0_QID_LEN 5
#define DMA_CFG_DESC_TX_0_QID_MSK 0x1F0000

#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_POS 21
#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_LEN 1
#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_MSK 0x200000

#define DMA_CFG_DESC_TX_0_L4_TYPE_POS 30
#define DMA_CFG_DESC_TX_0_L4_TYPE_LEN 2
#define DMA_CFG_DESC_TX_0_L4_TYPE_MSK 0xC0000000


#define TX_DMA_STATUS_DU         BIT(0)

struct vring_tx_dma {
	u32 d0;
	u32 addr_low;
	u16 addr_high;
	u8  ip_length;
	u8  b11;       /* 0..6: mac_length; 7:ip_version */
	u8  error;     /* 0..2: err; 3..7: reserved; */
	u8  status;    /* 0: used; 1..7; reserved */
	u16 length;
} __packed;

/*
 * Rx descriptor - MAC part
 * [dword 0]
 * bit  0.. 3 : tid:4 The QoS (b3-0) TID Field
 * bit  4.. 6 : connection_id:3 :The Source index that  was found during
 *  Parsing the TA.  This field is used to  define the source of the packet
 * bit      7 : reserved:1
 * bit  8.. 9 : mac_id:2 : The MAC virtual  Ring number (always zero)
 * bit 10..11 : frame_type:2 : The FC Control  (b3-2) -  MPDU Type
 *              (management, data, control  and extension)
 * bit 12..15 : frame_subtype:4 : The FC Control  (b7-4) -  Frame Subtype
 * bit 16..27 : seq_number:12 The received Sequence number field
 * bit 28..31 : extended:4 extended subtype
 * [dword 1]
 * bit  0.. 3 : reserved
 * bit  4.. 5 : key_id:2
 * bit      6 : decrypt_bypass:1
 * bit      7 : security:1
 * bit  8.. 9 : ds_bits:2
 * bit     10 : a_msdu_present:1  from qos header
 * bit     11 : a_msdu_type:1  from qos header
 * bit     12 : a_mpdu:1  part of AMPDU aggregation
 * bit     13 : broadcast:1
 * bit     14 : mutlicast:1
 * bit     15 : reserved:1
 * bit 16..20 : rx_mac_qid:5   The Queue Identifier that the packet
 *                             is received from
 * bit 21..24 : mcs:4
 * bit 25..28 : mic_icr:4
 * bit 29..31 : reserved:3
 * [dword 2]
 * bit  0.. 2 : time_slot:3 The timeslot that the MPDU is received
 * bit      3 : fc_protocol_ver:1 The FC Control  (b0) - Protocol  Version
 * bit      4 : fc_order:1 The FC Control (b15) -Order
 * bit  5.. 7 : qos_ack_policy:3  The QoS (b6-5) ack policy Field
 * bit      8 : esop:1 The QoS (b4) ESOP field
 * bit      9 : qos_rdg_more_ppdu:1 The QoS (b9) RDG  field
 * bit 10..14 : qos_reserved:5 The QoS (b14-10) Reserved  field
 * bit     15 : qos_ac_constraint:1
 * bit 16..31 : pn_15_0:16 low 2 bytes of PN
 * [dword 3]
 * bit  0..31 : pn_47_16:32 high 4 bytes of PN
 */
struct vring_rx_mac {
	u32 d0;
	u32 d1;
	u16 w4;
	u16 pn_15_0;
	u32 pn_47_16;
} __packed;

/*
 * Rx descriptor - DMA part
 * [dword 0]
 * bit  0.. 7 : l4_length:8 layer 4 length
 * bit  8.. 9 : reserved:2
 * bit     10 : cmd_dma_it:1
 * bit 11..15 : reserved:5
 * bit 16..29 : phy_info_length:14
 * bit 30..31 : l4_type:2 valid if the L4I bit is set in the status field
 * [dword 1]
 * bit  0..31 : addr_low:32 The payload buffer low address
 * [dword 2]
 * bit  0..15 : addr_high:16 The payload buffer high address
 * bit 16..23 : ip_length:8
 * bit 24..30 : mac_length:7
 * bit     31 : ip_version:1
 * [dword 3]
 *  [byte 12] error
 *  [byte 13] status
 * bit      0 : du:1
 * bit      1 : eop:1
 * bit      2 : error:1
 * bit      3 : mi:1
 * bit      4 : l3_identified:1
 * bit      5 : l4_identified:1
 * bit      6 : phy_info_included:1
 * bit      7 : reserved:1
 *  [word 7] length
 *
 */

#define RX_DMA_D0_CMD_DMA_IT     BIT(10)

#define RX_DMA_STATUS_DU         BIT(0)
#define RX_DMA_STATUS_ERROR      BIT(2)
#define RX_DMA_STATUS_PHY_INFO   BIT(6)

struct vring_rx_dma {
	u32 d0;
	u32 addr_low;
	u16 addr_high;
	u8  ip_length;
	u8  b11;
	u8  error;
	u8  status;
	u16 length;
} __packed;

struct vring_tx_desc {
	struct vring_tx_mac mac;
	struct vring_tx_dma dma;
} __packed;

struct vring_rx_desc {
	struct vring_rx_mac mac;
	struct vring_rx_dma dma;
} __packed;

union vring_desc {
	struct vring_tx_desc tx;
	struct vring_rx_desc rx;
} __packed;

static inline int wil_rxdesc_phy_length(volatile struct vring_rx_desc *d)
{
	return WIL_GET_BITS(d->dma.d0, 16, 29);
}

static inline int wil_rxdesc_mcs(volatile struct vring_rx_desc *d)
{
	return WIL_GET_BITS(d->mac.d1, 21, 24);
}

static inline int wil_rxdesc_ds_bits(volatile struct vring_rx_desc *d)
{
	return WIL_GET_BITS(d->mac.d1, 8, 9);
}

static inline int wil_rxdesc_ftype(volatile struct vring_rx_desc *d)
{
	return WIL_GET_BITS(d->mac.d0, 10, 11);
}

#endif /* WIL6210_TXRX_H */