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
|
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -1014,9 +1014,7 @@
*/
sc->sc_hasveol = ath_hal_hasveol(ah);
- /* Interference mitigation/ambient noise immunity (ANI).
- * In modes other than HAL_M_STA, it causes receive sensitivity
- * problems for OFDM. */
+ /* Interference mitigation/ambient noise immunity (ANI). */
sc->sc_hasintmit = ath_hal_hasintmit(ah);
/* get mac address from hardware */
@@ -1144,6 +1142,11 @@
sc->sc_rp_lasttsf = 0;
sc->sc_last_tsf = 0;
+ /* set all 3 to auto */
+ sc->sc_intmit = -1;
+ sc->sc_noise_immunity = -1;
+ sc->sc_ofdm_weak_det = -1;
+
return 0;
bad3:
ieee80211_ifdetach(ic);
@@ -2351,16 +2354,6 @@
}
if (status & HAL_INT_MIB) {
sc->sc_stats.ast_mib++;
- /* When the card receives lots of PHY errors, the MIB
- * interrupt will fire at a very rapid rate. We will use
- * a timer to enforce at least 1 jiffy delay between
- * MIB interrupts. This should be unproblematic, since
- * the hardware will continue to update the counters in
- * the mean time. */
- sc->sc_imask &= ~HAL_INT_MIB;
- ath_hal_intrset(ah, sc->sc_imask);
- mod_timer(&sc->sc_mib_enable, jiffies + 1);
-
/* Let the HAL handle the event. */
ath_hal_mibevent(ah, &sc->sc_halstats);
}
@@ -2430,6 +2423,43 @@
return flags;
}
+static int ath_setintmit(struct ath_softc *sc)
+{
+ struct ath_hal *ah = sc->sc_ah;
+ int ret;
+ int val;
+
+ if (!sc->sc_hasintmit)
+ return 0;
+
+ switch(sc->sc_intmit) {
+ case -1:
+ if (sc->sc_opmode != IEEE80211_M_MONITOR)
+ val = 1;
+ else
+ val = 0;
+ break;
+ case 0: /* disabled */
+ case 1: /* enabled */
+ val = sc->sc_intmit;
+ break;
+ default:
+ return 0;
+ }
+ ret = ath_hal_setintmit(ah, val);
+ if (val)
+ goto done;
+
+ /* manual settings */
+ if ((sc->sc_noise_immunity >= 0) && (sc->sc_noise_immunity <= 5))
+ ath_hal_setcapability(ah, HAL_CAP_INTMIT, 2, sc->sc_noise_immunity, NULL);
+ if ((sc->sc_ofdm_weak_det == 0) || (sc->sc_ofdm_weak_det == 1))
+ ath_hal_setcapability(ah, HAL_CAP_INTMIT, 3, sc->sc_ofdm_weak_det, NULL);
+
+done:
+ return ret;
+}
+
/*
* Context: process context
*/
@@ -2495,8 +2525,7 @@
if (sc->sc_softled)
ath_hal_gpioCfgOutput(ah, sc->sc_ledpin);
- if ((sc->sc_opmode != HAL_M_STA) && sc->sc_hasintmit)
- ath_hal_setintmit(ah, 0);
+ ath_setintmit(sc);
/*
* This is needed only to setup initial state
@@ -2532,7 +2561,7 @@
* Enable MIB interrupts when there are hardware phy counters.
* Note we only do this (at the moment) for station mode.
*/
- if (sc->sc_needmib && ic->ic_opmode == IEEE80211_M_STA)
+ if (sc->sc_needmib && ath_hal_getintmit(ah, NULL))
sc->sc_imask |= HAL_INT_MIB;
ath_hal_intrset(ah, sc->sc_imask);
@@ -2789,9 +2818,7 @@
EPRINTF(sc, "Unable to reset hardware: '%s' (HAL status %u)\n",
ath_get_hal_status_desc(status), status);
- if ((sc->sc_opmode != HAL_M_STA) && sc->sc_hasintmit)
- ath_hal_setintmit(ah, 0);
-
+ ath_setintmit(sc);
ath_update_txpow(sc); /* update tx power state */
ath_radar_update(sc);
ath_setdefantenna(sc, sc->sc_defant);
@@ -4176,6 +4203,8 @@
if (sc->sc_nmonvaps > 0)
rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
HAL_RX_FILTER_PROBEREQ | HAL_RX_FILTER_PROM);
+ if (sc->sc_hasintmit && !sc->sc_needmib && ath_hal_getintmit(ah, NULL))
+ rfilt |= HAL_RX_FILTER_PHYERR;
if (sc->sc_curchan.privFlags & CHANNEL_DFS)
rfilt |= (HAL_RX_FILTER_PHYERR | HAL_RX_FILTER_PHYRADAR);
return rfilt;
@@ -6526,9 +6555,6 @@
rs->rs_rssi = 0;
len = rs->rs_datalen;
- /* DMA sync. dies spectacularly if len == 0 */
- if (len == 0)
- goto rx_next;
if (rs->rs_more) {
/*
@@ -8880,9 +8906,7 @@
if (sc->sc_softled)
ath_hal_gpioCfgOutput(ah, sc->sc_ledpin);
- if ((sc->sc_opmode != HAL_M_STA) && sc->sc_hasintmit)
- ath_hal_setintmit(ah, 0);
-
+ ath_setintmit(sc);
sc->sc_curchan = hchan;
ath_update_txpow(sc); /* update tx power state */
ath_radar_update(sc);
@@ -10659,9 +10683,54 @@
ATH_RP_IGNORED = 24,
ATH_RADAR_IGNORED = 25,
ATH_MAXVAPS = 26,
+ ATH_INTMIT = 27,
+ ATH_NOISE_IMMUNITY = 28,
+ ATH_OFDM_WEAK_DET = 29
};
static int
+ath_sysctl_set_intmit(struct ath_softc *sc, long ctl, u_int val)
+{
+ int ret;
+
+ switch(ctl) {
+ case ATH_INTMIT:
+ sc->sc_intmit = val;
+ break;
+ case ATH_NOISE_IMMUNITY:
+ sc->sc_noise_immunity = val;
+ break;
+ case ATH_OFDM_WEAK_DET:
+ sc->sc_ofdm_weak_det = val;
+ break;
+ default:
+ return -EINVAL;
+ }
+ ret = ath_setintmit(sc);
+ ath_calcrxfilter(sc);
+ return ret;
+}
+
+static int
+ath_sysctl_get_intmit(struct ath_softc *sc, long ctl, u_int *val)
+{
+ struct ath_hal *ah = sc->sc_ah;
+
+ switch(ctl) {
+ case ATH_INTMIT:
+ *val = (ath_hal_getcapability(ah, HAL_CAP_INTMIT, 1, NULL) == HAL_OK);
+ break;
+ case ATH_NOISE_IMMUNITY:
+ return ath_hal_getcapability(ah, HAL_CAP_INTMIT, 2, val);
+ case ATH_OFDM_WEAK_DET:
+ return ath_hal_getcapability(ah, HAL_CAP_INTMIT, 3, val);
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int
ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl, write, filp, buffer, lenp, ppos)
{
struct ath_softc *sc = ctl->extra1;
@@ -10847,6 +10916,11 @@
case ATH_RADAR_IGNORED:
sc->sc_radar_ignored = val;
break;
+ case ATH_INTMIT:
+ case ATH_NOISE_IMMUNITY:
+ case ATH_OFDM_WEAK_DET:
+ ret = ath_sysctl_set_intmit(sc, (long)ctl->extra2, val);
+ break;
default:
ret = -EINVAL;
break;
@@ -10913,6 +10987,11 @@
case ATH_RADAR_IGNORED:
val = sc->sc_radar_ignored;
break;
+ case ATH_INTMIT:
+ case ATH_NOISE_IMMUNITY:
+ case ATH_OFDM_WEAK_DET:
+ ret = ath_sysctl_get_intmit(sc, (long)ctl->extra2, &val);
+ break;
default:
ret = -EINVAL;
break;
@@ -11090,6 +11169,24 @@
.proc_handler = ath_sysctl_halparam,
.extra2 = (void *)ATH_RADAR_IGNORED,
},
+ { .ctl_name = CTL_AUTO,
+ .procname = "intmit",
+ .mode = 0644,
+ .proc_handler = ath_sysctl_halparam,
+ .extra2 = (void *)ATH_INTMIT,
+ },
+ { .ctl_name = CTL_AUTO,
+ .procname = "noise_immunity",
+ .mode = 0644,
+ .proc_handler = ath_sysctl_halparam,
+ .extra2 = (void *)ATH_NOISE_IMMUNITY,
+ },
+ { .ctl_name = CTL_AUTO,
+ .procname = "ofdm_weak_det",
+ .mode = 0644,
+ .proc_handler = ath_sysctl_halparam,
+ .extra2 = (void *)ATH_OFDM_WEAK_DET,
+ },
{ 0 }
};
--- a/ath/if_athvar.h
+++ b/ath/if_athvar.h
@@ -693,6 +693,10 @@
unsigned int sc_txcont_power; /* Continuous transmit power in 0.5dBm units */
unsigned int sc_txcont_rate; /* Continuous transmit rate in Mbps */
+ int8_t sc_intmit; /* Interference mitigation enabled, -1 = auto, based on mode, 0/1 = off/on */
+ int8_t sc_noise_immunity; /* Noise immunity level, 0-4, -1 == auto) */
+ int8_t sc_ofdm_weak_det; /* OFDM weak frames detection, -1 == auto */
+
/* rate tables */
const HAL_RATE_TABLE *sc_rates[IEEE80211_MODE_MAX];
const HAL_RATE_TABLE *sc_currates; /* current rate table */
--- a/ath/if_ath_hal.h
+++ b/ath/if_ath_hal.h
@@ -67,14 +67,14 @@
static inline HAL_BOOL ath_hal_getdiagstate(struct ath_hal *ah, int request,
const void *args, u_int32_t argsize,
- void **result,
+ void *result,
u_int32_t *resultsize)
{
HAL_BOOL ret;
ATH_HAL_LOCK_IRQ(ah->ah_sc);
ath_hal_set_function(__func__);
ret =
- ah->ah_getDiagState(ah, request, args, argsize, *result,
+ ah->ah_getDiagState(ah, request, args, argsize, result,
resultsize);
ath_hal_set_function(NULL);
ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
|
