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path: root/drivers/net/wireless/ath/ath9k/rc.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/rc.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/rc.c616
1 files changed, 192 insertions, 424 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index ba06e78b2f50..16a271787b85 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -22,133 +22,132 @@ static const struct ath_rate_table ar5416_11na_ratetable = {
{
{ VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, 12,
- 0, 2, 1, 0, 0, 0, 0, 0 },
+ 0, 0, 0, 0, 0, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
7800, 0x0f, 0x00, 18,
- 0, 3, 1, 1, 1, 1, 1, 0 },
+ 0, 1, 1, 1, 1, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
10000, 0x0a, 0x00, 24,
- 2, 4, 2, 2, 2, 2, 2, 0 },
+ 2, 2, 2, 2, 2, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
13900, 0x0e, 0x00, 36,
- 2, 6, 2, 3, 3, 3, 3, 0 },
+ 2, 3, 3, 3, 3, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
17300, 0x09, 0x00, 48,
- 4, 10, 3, 4, 4, 4, 4, 0 },
+ 4, 4, 4, 4, 4, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
23000, 0x0d, 0x00, 72,
- 4, 14, 3, 5, 5, 5, 5, 0 },
+ 4, 5, 5, 5, 5, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
27400, 0x08, 0x00, 96,
- 4, 20, 3, 6, 6, 6, 6, 0 },
+ 4, 6, 6, 6, 6, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
29300, 0x0c, 0x00, 108,
- 4, 23, 3, 7, 7, 7, 7, 0 },
- { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */
+ 4, 7, 7, 7, 7, 0 },
+ { VALID_2040, VALID_2040, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */
6400, 0x80, 0x00, 0,
- 0, 2, 3, 8, 24, 8, 24, 3216 },
+ 0, 8, 24, 8, 24, 3216 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */
12700, 0x81, 0x00, 1,
- 2, 4, 3, 9, 25, 9, 25, 6434 },
+ 2, 9, 25, 9, 25, 6434 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */
18800, 0x82, 0x00, 2,
- 2, 6, 3, 10, 26, 10, 26, 9650 },
+ 2, 10, 26, 10, 26, 9650 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */
25000, 0x83, 0x00, 3,
- 4, 10, 3, 11, 27, 11, 27, 12868 },
+ 4, 11, 27, 11, 27, 12868 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */
36700, 0x84, 0x00, 4,
- 4, 14, 3, 12, 28, 12, 28, 19304 },
+ 4, 12, 28, 12, 28, 19304 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */
48100, 0x85, 0x00, 5,
- 4, 20, 3, 13, 29, 13, 29, 25740 },
+ 4, 13, 29, 13, 29, 25740 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */
53500, 0x86, 0x00, 6,
- 4, 23, 3, 14, 30, 14, 30, 28956 },
+ 4, 14, 30, 14, 30, 28956 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */
59000, 0x87, 0x00, 7,
- 4, 25, 3, 15, 31, 15, 32, 32180 },
+ 4, 15, 31, 15, 32, 32180 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */
12700, 0x88, 0x00,
- 8, 0, 2, 3, 16, 33, 16, 33, 6430 },
+ 8, 3, 16, 33, 16, 33, 6430 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */
24800, 0x89, 0x00, 9,
- 2, 4, 3, 17, 34, 17, 34, 12860 },
+ 2, 17, 34, 17, 34, 12860 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */
36600, 0x8a, 0x00, 10,
- 2, 6, 3, 18, 35, 18, 35, 19300 },
+ 2, 18, 35, 18, 35, 19300 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */
48100, 0x8b, 0x00, 11,
- 4, 10, 3, 19, 36, 19, 36, 25736 },
+ 4, 19, 36, 19, 36, 25736 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */
69500, 0x8c, 0x00, 12,
- 4, 14, 3, 20, 37, 20, 37, 38600 },
+ 4, 20, 37, 20, 37, 38600 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */
89500, 0x8d, 0x00, 13,
- 4, 20, 3, 21, 38, 21, 38, 51472 },
+ 4, 21, 38, 21, 38, 51472 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */
98900, 0x8e, 0x00, 14,
- 4, 23, 3, 22, 39, 22, 39, 57890 },
+ 4, 22, 39, 22, 39, 57890 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */
108300, 0x8f, 0x00, 15,
- 4, 25, 3, 23, 40, 23, 41, 64320 },
+ 4, 23, 40, 23, 41, 64320 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */
13200, 0x80, 0x00, 0,
- 0, 2, 3, 8, 24, 24, 24, 6684 },
+ 0, 8, 24, 24, 24, 6684 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */
25900, 0x81, 0x00, 1,
- 2, 4, 3, 9, 25, 25, 25, 13368 },
+ 2, 9, 25, 25, 25, 13368 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */
38600, 0x82, 0x00, 2,
- 2, 6, 3, 10, 26, 26, 26, 20052 },
+ 2, 10, 26, 26, 26, 20052 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */
49800, 0x83, 0x00, 3,
- 4, 10, 3, 11, 27, 27, 27, 26738 },
+ 4, 11, 27, 27, 27, 26738 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */
72200, 0x84, 0x00, 4,
- 4, 14, 3, 12, 28, 28, 28, 40104 },
+ 4, 12, 28, 28, 28, 40104 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */
92900, 0x85, 0x00, 5,
- 4, 20, 3, 13, 29, 29, 29, 53476 },
+ 4, 13, 29, 29, 29, 53476 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */
102700, 0x86, 0x00, 6,
- 4, 23, 3, 14, 30, 30, 30, 60156 },
+ 4, 14, 30, 30, 30, 60156 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */
112000, 0x87, 0x00, 7,
- 4, 25, 3, 15, 31, 32, 32, 66840 },
+ 4, 15, 31, 32, 32, 66840 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */
122000, 0x87, 0x00, 7,
- 4, 25, 3, 15, 31, 32, 32, 74200 },
+ 4, 15, 31, 32, 32, 74200 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */
25800, 0x88, 0x00, 8,
- 0, 2, 3, 16, 33, 33, 33, 13360 },
+ 0, 16, 33, 33, 33, 13360 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */
49800, 0x89, 0x00, 9,
- 2, 4, 3, 17, 34, 34, 34, 26720 },
+ 2, 17, 34, 34, 34, 26720 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */
71900, 0x8a, 0x00, 10,
- 2, 6, 3, 18, 35, 35, 35, 40080 },
+ 2, 18, 35, 35, 35, 40080 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */
92500, 0x8b, 0x00, 11,
- 4, 10, 3, 19, 36, 36, 36, 53440 },
+ 4, 19, 36, 36, 36, 53440 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */
130300, 0x8c, 0x00, 12,
- 4, 14, 3, 20, 37, 37, 37, 80160 },
+ 4, 20, 37, 37, 37, 80160 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */
162800, 0x8d, 0x00, 13,
- 4, 20, 3, 21, 38, 38, 38, 106880 },
+ 4, 21, 38, 38, 38, 106880 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */
178200, 0x8e, 0x00, 14,
- 4, 23, 3, 22, 39, 39, 39, 120240 },
+ 4, 22, 39, 39, 39, 120240 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */
192100, 0x8f, 0x00, 15,
- 4, 25, 3, 23, 40, 41, 41, 133600 },
+ 4, 23, 40, 41, 41, 133600 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */
207000, 0x8f, 0x00, 15,
- 4, 25, 3, 23, 40, 41, 41, 148400 },
+ 4, 23, 40, 41, 41, 148400 },
},
50, /* probe interval */
- 50, /* rssi reduce interval */
WLAN_RC_HT_FLAG, /* Phy rates allowed initially */
};
@@ -160,145 +159,144 @@ static const struct ath_rate_table ar5416_11ng_ratetable = {
{
{ VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */
900, 0x1b, 0x00, 2,
- 0, 0, 1, 0, 0, 0, 0, 0 },
+ 0, 0, 0, 0, 0, 0 },
{ VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */
1900, 0x1a, 0x04, 4,
- 1, 1, 1, 1, 1, 1, 1, 0 },
+ 1, 1, 1, 1, 1, 0 },
{ VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */
4900, 0x19, 0x04, 11,
- 2, 2, 2, 2, 2, 2, 2, 0 },
+ 2, 2, 2, 2, 2, 0 },
{ VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */
8100, 0x18, 0x04, 22,
- 3, 3, 2, 3, 3, 3, 3, 0 },
+ 3, 3, 3, 3, 3, 0 },
{ INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, 12,
- 4, 2, 1, 4, 4, 4, 4, 0 },
+ 4, 4, 4, 4, 4, 0 },
{ INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
7800, 0x0f, 0x00, 18,
- 4, 3, 1, 5, 5, 5, 5, 0 },
+ 4, 5, 5, 5, 5, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
10100, 0x0a, 0x00, 24,
- 6, 4, 1, 6, 6, 6, 6, 0 },
+ 6, 6, 6, 6, 6, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
14100, 0x0e, 0x00, 36,
- 6, 6, 2, 7, 7, 7, 7, 0 },
+ 6, 7, 7, 7, 7, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
17700, 0x09, 0x00, 48,
- 8, 10, 3, 8, 8, 8, 8, 0 },
+ 8, 8, 8, 8, 8, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
23700, 0x0d, 0x00, 72,
- 8, 14, 3, 9, 9, 9, 9, 0 },
+ 8, 9, 9, 9, 9, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
27400, 0x08, 0x00, 96,
- 8, 20, 3, 10, 10, 10, 10, 0 },
+ 8, 10, 10, 10, 10, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
30900, 0x0c, 0x00, 108,
- 8, 23, 3, 11, 11, 11, 11, 0 },
+ 8, 11, 11, 11, 11, 0 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */
6400, 0x80, 0x00, 0,
- 4, 2, 3, 12, 28, 12, 28, 3216 },
+ 4, 12, 28, 12, 28, 3216 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */
12700, 0x81, 0x00, 1,
- 6, 4, 3, 13, 29, 13, 29, 6434 },
+ 6, 13, 29, 13, 29, 6434 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */
18800, 0x82, 0x00, 2,
- 6, 6, 3, 14, 30, 14, 30, 9650 },
+ 6, 14, 30, 14, 30, 9650 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */
25000, 0x83, 0x00, 3,
- 8, 10, 3, 15, 31, 15, 31, 12868 },
+ 8, 15, 31, 15, 31, 12868 },
{ VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */
36700, 0x84, 0x00, 4,
- 8, 14, 3, 16, 32, 16, 32, 19304 },
+ 8, 16, 32, 16, 32, 19304 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */
48100, 0x85, 0x00, 5,
- 8, 20, 3, 17, 33, 17, 33, 25740 },
+ 8, 17, 33, 17, 33, 25740 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */
53500, 0x86, 0x00, 6,
- 8, 23, 3, 18, 34, 18, 34, 28956 },
+ 8, 18, 34, 18, 34, 28956 },
{ INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */
59000, 0x87, 0x00, 7,
- 8, 25, 3, 19, 35, 19, 36, 32180 },
+ 8, 19, 35, 19, 36, 32180 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */
12700, 0x88, 0x00, 8,
- 4, 2, 3, 20, 37, 20, 37, 6430 },
+ 4, 20, 37, 20, 37, 6430 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */
24800, 0x89, 0x00, 9,
- 6, 4, 3, 21, 38, 21, 38, 12860 },
+ 6, 21, 38, 21, 38, 12860 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */
36600, 0x8a, 0x00, 10,
- 6, 6, 3, 22, 39, 22, 39, 19300 },
+ 6, 22, 39, 22, 39, 19300 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */
48100, 0x8b, 0x00, 11,
- 8, 10, 3, 23, 40, 23, 40, 25736 },
+ 8, 23, 40, 23, 40, 25736 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */
69500, 0x8c, 0x00, 12,
- 8, 14, 3, 24, 41, 24, 41, 38600 },
+ 8, 24, 41, 24, 41, 38600 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */
89500, 0x8d, 0x00, 13,
- 8, 20, 3, 25, 42, 25, 42, 51472 },
+ 8, 25, 42, 25, 42, 51472 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */
98900, 0x8e, 0x00, 14,
- 8, 23, 3, 26, 43, 26, 44, 57890 },
+ 8, 26, 43, 26, 44, 57890 },
{ VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */
108300, 0x8f, 0x00, 15,
- 8, 25, 3, 27, 44, 27, 45, 64320 },
+ 8, 27, 44, 27, 45, 64320 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */
13200, 0x80, 0x00, 0,
- 8, 2, 3, 12, 28, 28, 28, 6684 },
+ 8, 12, 28, 28, 28, 6684 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */
25900, 0x81, 0x00, 1,
- 8, 4, 3, 13, 29, 29, 29, 13368 },
+ 8, 13, 29, 29, 29, 13368 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */
38600, 0x82, 0x00, 2,
- 8, 6, 3, 14, 30, 30, 30, 20052 },
+ 8, 14, 30, 30, 30, 20052 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */
49800, 0x83, 0x00, 3,
- 8, 10, 3, 15, 31, 31, 31, 26738 },
+ 8, 15, 31, 31, 31, 26738 },
{ VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */
72200, 0x84, 0x00, 4,
- 8, 14, 3, 16, 32, 32, 32, 40104 },
+ 8, 16, 32, 32, 32, 40104 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */
92900, 0x85, 0x00, 5,
- 8, 20, 3, 17, 33, 33, 33, 53476 },
+ 8, 17, 33, 33, 33, 53476 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */
102700, 0x86, 0x00, 6,
- 8, 23, 3, 18, 34, 34, 34, 60156 },
+ 8, 18, 34, 34, 34, 60156 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */
112000, 0x87, 0x00, 7,
- 8, 23, 3, 19, 35, 36, 36, 66840 },
+ 8, 19, 35, 36, 36, 66840 },
{ INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */
122000, 0x87, 0x00, 7,
- 8, 25, 3, 19, 35, 36, 36, 74200 },
+ 8, 19, 35, 36, 36, 74200 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */
25800, 0x88, 0x00, 8,
- 8, 2, 3, 20, 37, 37, 37, 13360 },
+ 8, 20, 37, 37, 37, 13360 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */
49800, 0x89, 0x00, 9,
- 8, 4, 3, 21, 38, 38, 38, 26720 },
+ 8, 21, 38, 38, 38, 26720 },
{ INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */
71900, 0x8a, 0x00, 10,
- 8, 6, 3, 22, 39, 39, 39, 40080 },
+ 8, 22, 39, 39, 39, 40080 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */
92500, 0x8b, 0x00, 11,
- 8, 10, 3, 23, 40, 40, 40, 53440 },
+ 8, 23, 40, 40, 40, 53440 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */
130300, 0x8c, 0x00, 12,
- 8, 14, 3, 24, 41, 41, 41, 80160 },
+ 8, 24, 41, 41, 41, 80160 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */
162800, 0x8d, 0x00, 13,
- 8, 20, 3, 25, 42, 42, 42, 106880 },
+ 8, 25, 42, 42, 42, 106880 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */
178200, 0x8e, 0x00, 14,
- 8, 23, 3, 26, 43, 43, 43, 120240 },
+ 8, 26, 43, 43, 43, 120240 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */
192100, 0x8f, 0x00, 15,
- 8, 23, 3, 27, 44, 45, 45, 133600 },
+ 8, 27, 44, 45, 45, 133600 },
{ VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */
207000, 0x8f, 0x00, 15,
- 8, 25, 3, 27, 44, 45, 45, 148400 },
+ 8, 27, 44, 45, 45, 148400 },
},
50, /* probe interval */
- 50, /* rssi reduce interval */
WLAN_RC_HT_FLAG, /* Phy rates allowed initially */
};
@@ -307,31 +305,30 @@ static const struct ath_rate_table ar5416_11a_ratetable = {
{
{ VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, (0x80|12),
- 0, 2, 1, 0, 0 },
+ 0, 0, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
7800, 0x0f, 0x00, 18,
- 0, 3, 1, 1, 0 },
+ 0, 1, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
10000, 0x0a, 0x00, (0x80|24),
- 2, 4, 2, 2, 0 },
+ 2, 2, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
13900, 0x0e, 0x00, 36,
- 2, 6, 2, 3, 0 },
+ 2, 3, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
17300, 0x09, 0x00, (0x80|48),
- 4, 10, 3, 4, 0 },
+ 4, 4, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
23000, 0x0d, 0x00, 72,
- 4, 14, 3, 5, 0 },
+ 4, 5, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
27400, 0x08, 0x00, 96,
- 4, 19, 3, 6, 0 },
+ 4, 6, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
29300, 0x0c, 0x00, 108,
- 4, 23, 3, 7, 0 },
+ 4, 7, 0 },
},
50, /* probe interval */
- 50, /* rssi reduce interval */
0, /* Phy rates allowed initially */
};
@@ -340,64 +337,42 @@ static const struct ath_rate_table ar5416_11g_ratetable = {
{
{ VALID, VALID, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */
900, 0x1b, 0x00, 2,
- 0, 0, 1, 0, 0 },
+ 0, 0, 0 },
{ VALID, VALID, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */
1900, 0x1a, 0x04, 4,
- 1, 1, 1, 1, 0 },
+ 1, 1, 0 },
{ VALID, VALID, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */
4900, 0x19, 0x04, 11,
- 2, 2, 2, 2, 0 },
+ 2, 2, 0 },
{ VALID, VALID, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */
8100, 0x18, 0x04, 22,
- 3, 3, 2, 3, 0 },
+ 3, 3, 0 },
{ INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, 12,
- 4, 2, 1, 4, 0 },
+ 4, 4, 0 },
{ INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
7800, 0x0f, 0x00, 18,
- 4, 3, 1, 5, 0 },
+ 4, 5, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
10000, 0x0a, 0x00, 24,
- 6, 4, 1, 6, 0 },
+ 6, 6, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
13900, 0x0e, 0x00, 36,
- 6, 6, 2, 7, 0 },
+ 6, 7, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
17300, 0x09, 0x00, 48,
- 8, 10, 3, 8, 0 },
+ 8, 8, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
23000, 0x0d, 0x00, 72,
- 8, 14, 3, 9, 0 },
+ 8, 9, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
27400, 0x08, 0x00, 96,
- 8, 19, 3, 10, 0 },
+ 8, 10, 0 },
{ VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
29300, 0x0c, 0x00, 108,
- 8, 23, 3, 11, 0 },
+ 8, 11, 0 },
},
50, /* probe interval */
- 50, /* rssi reduce interval */
- 0, /* Phy rates allowed initially */
-};
-
-static const struct ath_rate_table ar5416_11b_ratetable = {
- 4,
- {
- { VALID, VALID, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */
- 900, 0x1b, 0x00, (0x80|2),
- 0, 0, 1, 0, 0 },
- { VALID, VALID, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */
- 1800, 0x1a, 0x04, (0x80|4),
- 1, 1, 1, 1, 0 },
- { VALID, VALID, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */
- 4300, 0x19, 0x04, (0x80|11),
- 1, 2, 2, 2, 0 },
- { VALID, VALID, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */
- 7100, 0x18, 0x04, (0x80|22),
- 1, 4, 100, 3, 0 },
- },
- 100, /* probe interval */
- 100, /* rssi reduce interval */
0, /* Phy rates allowed initially */
};
@@ -454,13 +429,6 @@ static inline void ath_rc_set_valid_txmask(struct ath_rate_priv *ath_rc_priv,
ath_rc_priv->valid_rate_index[index] = valid_tx_rate ? 1 : 0;
}
-static inline int ath_rc_isvalid_txmask(struct ath_rate_priv *ath_rc_priv,
- u8 index)
-{
- ASSERT(index <= ath_rc_priv->rate_table_size);
- return ath_rc_priv->valid_rate_index[index];
-}
-
static inline
int ath_rc_get_nextvalid_txrate(const struct ath_rate_table *rate_table,
struct ath_rate_priv *ath_rc_priv,
@@ -495,15 +463,13 @@ static int ath_rc_valid_phyrate(u32 phy, u32 capflag, int ignore_cw)
if (!ignore_cw && WLAN_RC_PHY_HT(phy))
if (WLAN_RC_PHY_40(phy) && !(capflag & WLAN_RC_40_FLAG))
return 0;
- if (!WLAN_RC_PHY_40(phy) && (capflag & WLAN_RC_40_FLAG))
- return 0;
return 1;
}
static inline int
-ath_rc_get_nextlowervalid_txrate(const struct ath_rate_table *rate_table,
- struct ath_rate_priv *ath_rc_priv,
- u8 cur_valid_txrate, u8 *next_idx)
+ath_rc_get_lower_rix(const struct ath_rate_table *rate_table,
+ struct ath_rate_priv *ath_rc_priv,
+ u8 cur_valid_txrate, u8 *next_idx)
{
int8_t i;
@@ -629,52 +595,20 @@ static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv,
return hi;
}
-static u8 ath_rc_ratefind_ht(struct ath_softc *sc,
- struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- int *is_probing)
+/* Finds the highest rate index we can use */
+static u8 ath_rc_get_highest_rix(struct ath_softc *sc,
+ struct ath_rate_priv *ath_rc_priv,
+ const struct ath_rate_table *rate_table,
+ int *is_probing)
{
- u32 dt, best_thruput, this_thruput, now_msec;
+ u32 best_thruput, this_thruput, now_msec;
u8 rate, next_rate, best_rate, maxindex, minindex;
- int8_t rssi_last, rssi_reduce = 0, index = 0;
-
- *is_probing = 0;
-
- rssi_last = median(ath_rc_priv->rssi_last,
- ath_rc_priv->rssi_last_prev,
- ath_rc_priv->rssi_last_prev2);
-
- /*
- * Age (reduce) last ack rssi based on how old it is.
- * The bizarre numbers are so the delta is 160msec,
- * meaning we divide by 16.
- * 0msec <= dt <= 25msec: don't derate
- * 25msec <= dt <= 185msec: derate linearly from 0 to 10dB
- * 185msec <= dt: derate by 10dB
- */
+ int8_t index = 0;
now_msec = jiffies_to_msecs(jiffies);
- dt = now_msec - ath_rc_priv->rssi_time;
-
- if (dt >= 185)
- rssi_reduce = 10;
- else if (dt >= 25)
- rssi_reduce = (u8)((dt - 25) >> 4);
-
- /* Now reduce rssi_last by rssi_reduce */
- if (rssi_last < rssi_reduce)
- rssi_last = 0;
- else
- rssi_last -= rssi_reduce;
-
- /*
- * Now look up the rate in the rssi table and return it.
- * If no rates match then we return 0 (lowest rate)
- */
-
+ *is_probing = 0;
best_thruput = 0;
maxindex = ath_rc_priv->max_valid_rate-1;
-
minindex = 0;
best_rate = minindex;
@@ -700,7 +634,7 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc,
* 10-15 and we would be worse off then staying
* at the current rate.
*/
- per_thres = ath_rc_priv->state[rate].per;
+ per_thres = ath_rc_priv->per[rate];
if (per_thres < 12)
per_thres = 12;
@@ -714,7 +648,6 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc,
}
rate = best_rate;
- ath_rc_priv->rssi_last_lookup = rssi_last;
/*
* Must check the actual rate (ratekbps) to account for
@@ -741,10 +674,18 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc,
if (rate > (ath_rc_priv->rate_table_size - 1))
rate = ath_rc_priv->rate_table_size - 1;
- ASSERT((rate_table->info[rate].valid &&
- (ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)) ||
- (rate_table->info[rate].valid_single_stream &&
- !(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG)));
+ if (rate_table->info[rate].valid &&
+ (ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG))
+ return rate;
+
+ if (rate_table->info[rate].valid_single_stream &&
+ !(ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG));
+ return rate;
+
+ /* This should not happen */
+ WARN_ON(1);
+
+ rate = ath_rc_priv->valid_rate_index[0];
return rate;
}
@@ -796,7 +737,6 @@ static void ath_rc_rate_set_rtscts(struct ath_softc *sc,
* just CTS. Note that this is only done for OFDM/HT unicast frames.
*/
if ((sc->sc_flags & SC_OP_PROTECT_ENABLE) &&
- !(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) &&
(rate_table->info[rix].phy == WLAN_RC_PHY_OFDM ||
WLAN_RC_PHY_HT(rate_table->info[rix].phy))) {
rates[0].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT;
@@ -806,50 +746,37 @@ static void ath_rc_rate_set_rtscts(struct ath_softc *sc,
tx_info->control.rts_cts_rate_idx = cix;
}
-static u8 ath_rc_rate_getidx(struct ath_softc *sc,
- struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- u8 rix, u16 stepdown,
- u16 min_rate)
-{
- u32 j;
- u8 nextindex = 0;
-
- if (min_rate) {
- for (j = RATE_TABLE_SIZE; j > 0; j--) {
- if (ath_rc_get_nextlowervalid_txrate(rate_table,
- ath_rc_priv, rix, &nextindex))
- rix = nextindex;
- else
- break;
- }
- } else {
- for (j = stepdown; j > 0; j--) {
- if (ath_rc_get_nextlowervalid_txrate(rate_table,
- ath_rc_priv, rix, &nextindex))
- rix = nextindex;
- else
- break;
- }
- }
- return rix;
-}
-
-static void ath_rc_ratefind(struct ath_softc *sc,
- struct ath_rate_priv *ath_rc_priv,
- struct ieee80211_tx_rate_control *txrc)
+static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
+ struct ieee80211_tx_rate_control *txrc)
{
+ struct ath_softc *sc = priv;
+ struct ath_rate_priv *ath_rc_priv = priv_sta;
const struct ath_rate_table *rate_table;
struct sk_buff *skb = txrc->skb;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *rates = tx_info->control.rates;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
__le16 fc = hdr->frame_control;
- u8 try_per_rate = 0, i = 0, rix, nrix;
+ u8 try_per_rate, i = 0, rix, nrix;
int is_probe = 0;
+ if (rate_control_send_low(sta, priv_sta, txrc))
+ return;
+
+ /*
+ * For Multi Rate Retry we use a different number of
+ * retry attempt counts. This ends up looking like this:
+ *
+ * MRR[0] = 2
+ * MRR[1] = 2
+ * MRR[2] = 2
+ * MRR[3] = 4
+ *
+ */
+ try_per_rate = sc->hw->max_rate_tries;
+
rate_table = sc->cur_rate_table;
- rix = ath_rc_ratefind_ht(sc, ath_rc_priv, rate_table, &is_probe);
+ rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe);
nrix = rix;
if (is_probe) {
@@ -858,18 +785,15 @@ static void ath_rc_ratefind(struct ath_softc *sc,
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
1, nrix, 0);
- try_per_rate = (ATH_11N_TXMAXTRY/4);
/* Get the next tried/allowed rate. No RTS for the next series
* after the probe rate
*/
- nrix = ath_rc_rate_getidx(sc, ath_rc_priv,
- rate_table, nrix, 1, 0);
+ ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix);
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, nrix, 0);
tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
} else {
- try_per_rate = (ATH_11N_TXMAXTRY/4);
/* Set the choosen rate. No RTS for first series entry. */
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, nrix, 0);
@@ -877,18 +801,14 @@ static void ath_rc_ratefind(struct ath_softc *sc,
/* Fill in the other rates for multirate retry */
for ( ; i < 4; i++) {
- u8 try_num;
- u8 min_rate;
+ /* Use twice the number of tries for the last MRR segment. */
+ if (i + 1 == 4)
+ try_per_rate = 4;
- try_num = ((i + 1) == 4) ?
- ATH_11N_TXMAXTRY - (try_per_rate * i) : try_per_rate ;
- min_rate = (((i + 1) == 4) && 0);
-
- nrix = ath_rc_rate_getidx(sc, ath_rc_priv,
- rate_table, nrix, 1, min_rate);
+ ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix);
/* All other rates in the series have RTS enabled */
ath_rc_rate_set_series(rate_table, &rates[i], txrc,
- try_num, nrix, 1);
+ try_per_rate, nrix, 1);
}
/*
@@ -925,9 +845,8 @@ static void ath_rc_ratefind(struct ath_softc *sc,
*
* FIXME: Fix duration
*/
- if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) &&
- (ieee80211_has_morefrags(fc) ||
- (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG))) {
+ if (ieee80211_has_morefrags(fc) ||
+ (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)) {
rates[1].count = rates[2].count = rates[3].count = 0;
rates[1].idx = rates[2].idx = rates[3].idx = 0;
rates[0].count = ATH_TXMAXTRY;
@@ -960,13 +879,13 @@ static bool ath_rc_update_per(struct ath_softc *sc,
100 * 9 / 10
};
- last_per = ath_rc_priv->state[tx_rate].per;
+ last_per = ath_rc_priv->per[tx_rate];
if (xretries) {
if (xretries == 1) {
- ath_rc_priv->state[tx_rate].per += 30;
- if (ath_rc_priv->state[tx_rate].per > 100)
- ath_rc_priv->state[tx_rate].per = 100;
+ ath_rc_priv->per[tx_rate] += 30;
+ if (ath_rc_priv->per[tx_rate] > 100)
+ ath_rc_priv->per[tx_rate] = 100;
} else {
/* xretries == 2 */
count = ARRAY_SIZE(nretry_to_per_lookup);
@@ -974,7 +893,7 @@ static bool ath_rc_update_per(struct ath_softc *sc,
retries = count - 1;
/* new_PER = 7/8*old_PER + 1/8*(currentPER) */
- ath_rc_priv->state[tx_rate].per =
+ ath_rc_priv->per[tx_rate] =
(u8)(last_per - (last_per >> 3) + (100 >> 3));
}
@@ -1010,18 +929,14 @@ static bool ath_rc_update_per(struct ath_softc *sc,
n_frames = tx_info_priv->n_frames * (retries + 1);
cur_per = (100 * n_bad_frames / n_frames) >> 3;
new_per = (u8)(last_per - (last_per >> 3) + cur_per);
- ath_rc_priv->state[tx_rate].per = new_per;
+ ath_rc_priv->per[tx_rate] = new_per;
}
} else {
- ath_rc_priv->state[tx_rate].per =
+ ath_rc_priv->per[tx_rate] =
(u8)(last_per - (last_per >> 3) +
(nretry_to_per_lookup[retries] >> 3));
}
- ath_rc_priv->rssi_last_prev2 = ath_rc_priv->rssi_last_prev;
- ath_rc_priv->rssi_last_prev = ath_rc_priv->rssi_last;
- ath_rc_priv->rssi_last = tx_info_priv->tx.ts_rssi;
- ath_rc_priv->rssi_time = now_msec;
/*
* If we got at most one retry then increase the max rate if
@@ -1045,8 +960,8 @@ static bool ath_rc_update_per(struct ath_softc *sc,
ath_rc_priv->probe_rate;
probe_rate = ath_rc_priv->probe_rate;
- if (ath_rc_priv->state[probe_rate].per > 30)
- ath_rc_priv->state[probe_rate].per = 20;
+ if (ath_rc_priv->per[probe_rate] > 30)
+ ath_rc_priv->per[probe_rate] = 20;
ath_rc_priv->probe_rate = 0;
@@ -1065,18 +980,9 @@ static bool ath_rc_update_per(struct ath_softc *sc,
/*
* Don't update anything. We don't know if
* this was because of collisions or poor signal.
- *
- * Later: if rssi_ack is close to
- * ath_rc_priv->state[txRate].rssi_thres and we see lots
- * of retries, then we could increase
- * ath_rc_priv->state[txRate].rssi_thres.
*/
ath_rc_priv->hw_maxretry_pktcnt = 0;
} else {
- int32_t rssi_ackAvg;
- int8_t rssi_thres;
- int8_t rssi_ack_vmin;
-
/*
* It worked with no retries. First ignore bogus (small)
* rssi_ack values.
@@ -1086,43 +992,9 @@ static bool ath_rc_update_per(struct ath_softc *sc,
ath_rc_priv->hw_maxretry_pktcnt++;
}
- if (tx_info_priv->tx.ts_rssi <
- rate_table->info[tx_rate].rssi_ack_validmin)
- goto exit;
-
- /* Average the rssi */
- if (tx_rate != ath_rc_priv->rssi_sum_rate) {
- ath_rc_priv->rssi_sum_rate = tx_rate;
- ath_rc_priv->rssi_sum =
- ath_rc_priv->rssi_sum_cnt = 0;
- }
-
- ath_rc_priv->rssi_sum += tx_info_priv->tx.ts_rssi;
- ath_rc_priv->rssi_sum_cnt++;
-
- if (ath_rc_priv->rssi_sum_cnt < 4)
- goto exit;
-
- rssi_ackAvg =
- (ath_rc_priv->rssi_sum + 2) / 4;
- rssi_thres =
- ath_rc_priv->state[tx_rate].rssi_thres;
- rssi_ack_vmin =
- rate_table->info[tx_rate].rssi_ack_validmin;
-
- ath_rc_priv->rssi_sum =
- ath_rc_priv->rssi_sum_cnt = 0;
-
- /* Now reduce the current rssi threshold */
- if ((rssi_ackAvg < rssi_thres + 2) &&
- (rssi_thres > rssi_ack_vmin)) {
- ath_rc_priv->state[tx_rate].rssi_thres--;
- }
-
- state_change = true;
}
}
-exit:
+
return state_change;
}
@@ -1134,11 +1006,6 @@ static void ath_rc_update_ht(struct ath_softc *sc,
struct ath_tx_info_priv *tx_info_priv,
int tx_rate, int xretries, int retries)
{
-#define CHK_RSSI(rate) \
- ((ath_rc_priv->state[(rate)].rssi_thres + \
- rate_table->info[(rate)].rssi_ack_deltamin) > \
- ath_rc_priv->state[(rate)+1].rssi_thres)
-
u32 now_msec = jiffies_to_msecs(jiffies);
int rate;
u8 last_per;
@@ -1149,14 +1016,7 @@ static void ath_rc_update_ht(struct ath_softc *sc,
if ((tx_rate < 0) || (tx_rate > rate_table->rate_cnt))
return;
- /* To compensate for some imbalance between ctrl and ext. channel */
-
- if (WLAN_RC_PHY_40(rate_table->info[tx_rate].phy))
- tx_info_priv->tx.ts_rssi =
- tx_info_priv->tx.ts_rssi < 3 ? 0 :
- tx_info_priv->tx.ts_rssi - 3;
-
- last_per = ath_rc_priv->state[tx_rate].per;
+ last_per = ath_rc_priv->per[tx_rate];
/* Update PER first */
state_change = ath_rc_update_per(sc, rate_table, ath_rc_priv,
@@ -1167,114 +1027,52 @@ static void ath_rc_update_ht(struct ath_softc *sc,
* If this rate looks bad (high PER) then stop using it for
* a while (except if we are probing).
*/
- if (ath_rc_priv->state[tx_rate].per >= 55 && tx_rate > 0 &&
+ if (ath_rc_priv->per[tx_rate] >= 55 && tx_rate > 0 &&
rate_table->info[tx_rate].ratekbps <=
rate_table->info[ath_rc_priv->rate_max_phy].ratekbps) {
- ath_rc_get_nextlowervalid_txrate(rate_table, ath_rc_priv,
- (u8)tx_rate, &ath_rc_priv->rate_max_phy);
+ ath_rc_get_lower_rix(rate_table, ath_rc_priv,
+ (u8)tx_rate, &ath_rc_priv->rate_max_phy);
/* Don't probe for a little while. */
ath_rc_priv->probe_time = now_msec;
}
- if (state_change) {
- /*
- * Make sure the rates above this have higher rssi thresholds.
- * (Note: Monotonicity is kept within the OFDM rates and
- * within the CCK rates. However, no adjustment is
- * made to keep the rssi thresholds monotonically
- * increasing between the CCK and OFDM rates.)
- */
- for (rate = tx_rate; rate < size - 1; rate++) {
- if (rate_table->info[rate+1].phy !=
- rate_table->info[tx_rate].phy)
- break;
-
- if (CHK_RSSI(rate)) {
- ath_rc_priv->state[rate+1].rssi_thres =
- ath_rc_priv->state[rate].rssi_thres +
- rate_table->info[rate].rssi_ack_deltamin;
- }
- }
-
- /* Make sure the rates below this have lower rssi thresholds. */
- for (rate = tx_rate - 1; rate >= 0; rate--) {
- if (rate_table->info[rate].phy !=
- rate_table->info[tx_rate].phy)
- break;
-
- if (CHK_RSSI(rate)) {
- if (ath_rc_priv->state[rate+1].rssi_thres <
- rate_table->info[rate].rssi_ack_deltamin)
- ath_rc_priv->state[rate].rssi_thres = 0;
- else {
- ath_rc_priv->state[rate].rssi_thres =
- ath_rc_priv->state[rate+1].rssi_thres -
- rate_table->info[rate].rssi_ack_deltamin;
- }
-
- if (ath_rc_priv->state[rate].rssi_thres <
- rate_table->info[rate].rssi_ack_validmin) {
- ath_rc_priv->state[rate].rssi_thres =
- rate_table->info[rate].rssi_ack_validmin;
- }
- }
- }
- }
-
/* Make sure the rates below this have lower PER */
/* Monotonicity is kept only for rates below the current rate. */
- if (ath_rc_priv->state[tx_rate].per < last_per) {
+ if (ath_rc_priv->per[tx_rate] < last_per) {
for (rate = tx_rate - 1; rate >= 0; rate--) {
- if (rate_table->info[rate].phy !=
- rate_table->info[tx_rate].phy)
- break;
- if (ath_rc_priv->state[rate].per >
- ath_rc_priv->state[rate+1].per) {
- ath_rc_priv->state[rate].per =
- ath_rc_priv->state[rate+1].per;
+ if (ath_rc_priv->per[rate] >
+ ath_rc_priv->per[rate+1]) {
+ ath_rc_priv->per[rate] =
+ ath_rc_priv->per[rate+1];
}
}
}
/* Maintain monotonicity for rates above the current rate */
for (rate = tx_rate; rate < size - 1; rate++) {
- if (ath_rc_priv->state[rate+1].per <
- ath_rc_priv->state[rate].per)
- ath_rc_priv->state[rate+1].per =
- ath_rc_priv->state[rate].per;
- }
-
- /* Every so often, we reduce the thresholds and
- * PER (different for CCK and OFDM). */
- if (now_msec - ath_rc_priv->rssi_down_time >=
- rate_table->rssi_reduce_interval) {
-
- for (rate = 0; rate < size; rate++) {
- if (ath_rc_priv->state[rate].rssi_thres >
- rate_table->info[rate].rssi_ack_validmin)
- ath_rc_priv->state[rate].rssi_thres -= 1;
- }
- ath_rc_priv->rssi_down_time = now_msec;
+ if (ath_rc_priv->per[rate+1] <
+ ath_rc_priv->per[rate])
+ ath_rc_priv->per[rate+1] =
+ ath_rc_priv->per[rate];
}
/* Every so often, we reduce the thresholds
* and PER (different for CCK and OFDM). */
if (now_msec - ath_rc_priv->per_down_time >=
- rate_table->rssi_reduce_interval) {
+ rate_table->probe_interval) {
for (rate = 0; rate < size; rate++) {
- ath_rc_priv->state[rate].per =
- 7 * ath_rc_priv->state[rate].per / 8;
+ ath_rc_priv->per[rate] =
+ 7 * ath_rc_priv->per[rate] / 8;
}
ath_rc_priv->per_down_time = now_msec;
}
ath_debug_stat_retries(sc, tx_rate, xretries, retries,
- ath_rc_priv->state[tx_rate].per);
+ ath_rc_priv->per[tx_rate]);
-#undef CHK_RSSI
}
static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table,
@@ -1410,9 +1208,7 @@ static void ath_rc_init(struct ath_softc *sc,
/* Initialize thresholds according to the global rate table */
for (i = 0 ; i < ath_rc_priv->rate_table_size; i++) {
- ath_rc_priv->state[i].rssi_thres =
- rate_table->info[i].rssi_ack_validmin;
- ath_rc_priv->state[i].per = 0;
+ ath_rc_priv->per[i] = 0;
}
/* Determine the valid rates */
@@ -1521,7 +1317,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
/*
* If underrun error is seen assume it as an excessive retry only
* if prefetch trigger level have reached the max (0x3f for 5416)
- * Adjust the long retry as if the frame was tried ATH_11N_TXMAXTRY
+ * Adjust the long retry as if the frame was tried hw->max_rate_tries
* times. This affects how ratectrl updates PER for the failed rate.
*/
if (tx_info_priv->tx.ts_flags &
@@ -1536,7 +1332,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
tx_status = 1;
ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status,
- (is_underrun) ? ATH_11N_TXMAXTRY :
+ (is_underrun) ? sc->hw->max_rate_tries :
tx_info_priv->tx.ts_longretry);
/* Check if aggregation has to be enabled for this tid */
@@ -1560,31 +1356,6 @@ exit:
kfree(tx_info_priv);
}
-static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
- struct ieee80211_tx_rate_control *txrc)
-{
- struct ieee80211_supported_band *sband = txrc->sband;
- struct sk_buff *skb = txrc->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
- struct ath_softc *sc = priv;
- struct ath_rate_priv *ath_rc_priv = priv_sta;
- __le16 fc = hdr->frame_control;
-
- /* lowest rate for management and NO_ACK frames */
- if (!ieee80211_is_data(fc) ||
- tx_info->flags & IEEE80211_TX_CTL_NO_ACK || !sta) {
- tx_info->control.rates[0].idx = rate_lowest_index(sband, sta);
- tx_info->control.rates[0].count =
- (tx_info->flags & IEEE80211_TX_CTL_NO_ACK) ?
- 1 : ATH_MGT_TXMAXTRY;
- return;
- }
-
- /* Find tx rate for unicast frames */
- ath_rc_ratefind(sc, ath_rc_priv, txrc);
-}
-
static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
@@ -1697,7 +1468,6 @@ static void *ath_rate_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp
return NULL;
}
- rate_priv->rssi_down_time = jiffies_to_msecs(jiffies);
rate_priv->tx_triglevel_max = sc->sc_ah->caps.tx_triglevel_max;
return rate_priv;
@@ -1725,8 +1495,6 @@ static struct rate_control_ops ath_rate_ops = {
void ath_rate_attach(struct ath_softc *sc)
{
- sc->hw_rate_table[ATH9K_MODE_11B] =
- &ar5416_11b_ratetable;
sc->hw_rate_table[ATH9K_MODE_11A] =
&ar5416_11a_ratetable;
sc->hw_rate_table[ATH9K_MODE_11G] =
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-26 17:39:59 +0000