Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004 Video54 Technologies, Inc. |
Sujith | cee075a | 2009-03-13 09:07:23 +0530 | [diff] [blame] | 3 | * Copyright (c) 2004-2009 Atheros Communications, Inc. |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 4 | * |
| 5 | * Permission to use, copy, modify, and/or distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 18 | #include <linux/slab.h> |
| 19 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 20 | #include "ath9k.h" |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 21 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 22 | static const struct ath_rate_table ar5416_11na_ratetable = { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 23 | 68, |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 24 | 8, /* MCS start */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 25 | { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 26 | [0] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 6000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 27 | 5400, 0, 12, 0, 0, 0, 0 }, /* 6 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 28 | [1] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 9000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 29 | 7800, 1, 18, 0, 1, 1, 1 }, /* 9 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 30 | [2] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 31 | 10000, 2, 24, 2, 2, 2, 2 }, /* 12 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 32 | [3] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 33 | 13900, 3, 36, 2, 3, 3, 3 }, /* 18 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 34 | [4] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 35 | 17300, 4, 48, 4, 4, 4, 4 }, /* 24 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 36 | [5] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 37 | 23000, 5, 72, 4, 5, 5, 5 }, /* 36 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 38 | [6] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 39 | 27400, 6, 96, 4, 6, 6, 6 }, /* 48 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 40 | [7] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 41 | 29300, 7, 108, 4, 7, 7, 7 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 42 | [8] = { RC_HT_SDT_2040, WLAN_RC_PHY_HT_20_SS, 6500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 43 | 6400, 0, 0, 0, 38, 8, 38 }, /* 6.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 44 | [9] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 13000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 45 | 12700, 1, 1, 2, 39, 9, 39 }, /* 13 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 46 | [10] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 19500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 47 | 18800, 2, 2, 2, 40, 10, 40 }, /* 19.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 48 | [11] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 26000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 49 | 25000, 3, 3, 4, 41, 11, 41 }, /* 26 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 50 | [12] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 51 | 36700, 4, 4, 4, 42, 12, 42 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 52 | [13] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 52000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 53 | 48100, 5, 5, 4, 43, 13, 43 }, /* 52 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 54 | [14] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 58500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 55 | 53500, 6, 6, 4, 44, 14, 44 }, /* 58.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 56 | [15] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 65000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 57 | 59000, 7, 7, 4, 45, 16, 46 }, /* 65 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 58 | [16] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS_HGI, 72200, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 59 | 65400, 7, 7, 4, 45, 16, 46 }, /* 75 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 60 | [17] = { RC_INVALID, WLAN_RC_PHY_HT_20_DS, 13000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 61 | 12700, 8, 8, 0, 47, 17, 47 }, /* 13 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 62 | [18] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 26000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 63 | 24800, 9, 9, 2, 48, 18, 48 }, /* 26 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 64 | [19] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 65 | 36600, 10, 10, 2, 49, 19, 49 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 66 | [20] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 52000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 67 | 48100, 11, 11, 4, 50, 20, 50 }, /* 52 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 68 | [21] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 78000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 69 | 69500, 12, 12, 4, 51, 21, 51 }, /* 78 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 70 | [22] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 104000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 71 | 89500, 13, 13, 4, 52, 22, 52 }, /* 104 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 72 | [23] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 117000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 73 | 98900, 14, 14, 4, 53, 23, 53 }, /* 117 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 74 | [24] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 130000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 75 | 108300, 15, 15, 4, 54, 25, 55 }, /* 130 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 76 | [25] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS_HGI, 144400, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 77 | 120000, 15, 15, 4, 54, 25, 55 }, /* 144.4 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 78 | [26] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 19500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 79 | 17400, 16, 16, 0, 56, 26, 56 }, /* 19.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 80 | [27] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 81 | 35100, 17, 17, 2, 57, 27, 57 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 82 | [28] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 58500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 83 | 52600, 18, 18, 2, 58, 28, 58 }, /* 58.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 84 | [29] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 78000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 85 | 70400, 19, 19, 4, 59, 29, 59 }, /* 78 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 86 | [30] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 117000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 87 | 104900, 20, 20, 4, 60, 31, 61 }, /* 117 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 88 | [31] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS_HGI, 130000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 89 | 115800, 20, 20, 4, 60, 31, 61 }, /* 130 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 90 | [32] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 156000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 91 | 137200, 21, 21, 4, 62, 33, 63 }, /* 156 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 92 | [33] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 173300, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 93 | 151100, 21, 21, 4, 62, 33, 63 }, /* 173.3 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 94 | [34] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 175500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 95 | 152800, 22, 22, 4, 64, 35, 65 }, /* 175.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 96 | [35] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 195000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 97 | 168400, 22, 22, 4, 64, 35, 65 }, /* 195 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 98 | [36] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 195000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 99 | 168400, 23, 23, 4, 66, 37, 67 }, /* 195 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 100 | [37] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 216700, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 101 | 185000, 23, 23, 4, 66, 37, 67 }, /* 216.7 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 102 | [38] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 13500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 103 | 13200, 0, 0, 0, 38, 38, 38 }, /* 13.5 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 104 | [39] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 27500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 105 | 25900, 1, 1, 2, 39, 39, 39 }, /* 27.0 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 106 | [40] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 40500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 107 | 38600, 2, 2, 2, 40, 40, 40 }, /* 40.5 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 108 | [41] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 109 | 49800, 3, 3, 4, 41, 41, 41 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 110 | [42] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 81500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 111 | 72200, 4, 4, 4, 42, 42, 42 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 112 | [43] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 108000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 113 | 92900, 5, 5, 4, 43, 43, 43 }, /* 108 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 114 | [44] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 121500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 115 | 102700, 6, 6, 4, 44, 44, 44 }, /* 121.5 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 116 | [45] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 135000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 117 | 112000, 7, 7, 4, 45, 46, 46 }, /* 135 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 118 | [46] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 119 | 122000, 7, 7, 4, 45, 46, 46 }, /* 150 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 120 | [47] = { RC_INVALID, WLAN_RC_PHY_HT_40_DS, 27000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 121 | 25800, 8, 8, 0, 47, 47, 47 }, /* 27 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 122 | [48] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 123 | 49800, 9, 9, 2, 48, 48, 48 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 124 | [49] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 81000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 125 | 71900, 10, 10, 2, 49, 49, 49 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 126 | [50] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 108000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 127 | 92500, 11, 11, 4, 50, 50, 50 }, /* 108 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 128 | [51] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 162000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 129 | 130300, 12, 12, 4, 51, 51, 51 }, /* 162 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 130 | [52] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 216000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 131 | 162800, 13, 13, 4, 52, 52, 52 }, /* 216 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 132 | [53] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 243000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 133 | 178200, 14, 14, 4, 53, 53, 53 }, /* 243 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 134 | [54] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 270000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 135 | 192100, 15, 15, 4, 54, 55, 55 }, /* 270 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 136 | [55] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS_HGI, 300000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 137 | 207000, 15, 15, 4, 54, 55, 55 }, /* 300 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 138 | [56] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 40500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 139 | 36100, 16, 16, 0, 56, 56, 56 }, /* 40.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 140 | [57] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 81000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 141 | 72900, 17, 17, 2, 57, 57, 57 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 142 | [58] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 121500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 143 | 108300, 18, 18, 2, 58, 58, 58 }, /* 121.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 144 | [59] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 162000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 145 | 142000, 19, 19, 4, 59, 59, 59 }, /* 162 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 146 | [60] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 243000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 147 | 205100, 20, 20, 4, 60, 61, 61 }, /* 243 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 148 | [61] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS_HGI, 270000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 149 | 224700, 20, 20, 4, 60, 61, 61 }, /* 270 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 150 | [62] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 324000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 151 | 263100, 21, 21, 4, 62, 63, 63 }, /* 324 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 152 | [63] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 360000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 153 | 288000, 21, 21, 4, 62, 63, 63 }, /* 360 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 154 | [64] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 364500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 155 | 290700, 22, 22, 4, 64, 65, 65 }, /* 364.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 156 | [65] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 405000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 157 | 317200, 22, 22, 4, 64, 65, 65 }, /* 405 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 158 | [66] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 405000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 159 | 317200, 23, 23, 4, 66, 67, 67 }, /* 405 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 160 | [67] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 450000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 161 | 346400, 23, 23, 4, 66, 67, 67 }, /* 450 Mb */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 162 | }, |
| 163 | 50, /* probe interval */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 164 | WLAN_RC_HT_FLAG, /* Phy rates allowed initially */ |
| 165 | }; |
| 166 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 167 | /* 4ms frame limit not used for NG mode. The values filled |
| 168 | * for HT are the 64K max aggregate limit */ |
| 169 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 170 | static const struct ath_rate_table ar5416_11ng_ratetable = { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 171 | 72, |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 172 | 12, /* MCS start */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 173 | { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 174 | [0] = { RC_ALL, WLAN_RC_PHY_CCK, 1000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 175 | 900, 0, 2, 0, 0, 0, 0 }, /* 1 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 176 | [1] = { RC_ALL, WLAN_RC_PHY_CCK, 2000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 177 | 1900, 1, 4, 1, 1, 1, 1 }, /* 2 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 178 | [2] = { RC_ALL, WLAN_RC_PHY_CCK, 5500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 179 | 4900, 2, 11, 2, 2, 2, 2 }, /* 5.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 180 | [3] = { RC_ALL, WLAN_RC_PHY_CCK, 11000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 181 | 8100, 3, 22, 3, 3, 3, 3 }, /* 11 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 182 | [4] = { RC_INVALID, WLAN_RC_PHY_OFDM, 6000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 183 | 5400, 4, 12, 4, 4, 4, 4 }, /* 6 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 184 | [5] = { RC_INVALID, WLAN_RC_PHY_OFDM, 9000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 185 | 7800, 5, 18, 4, 5, 5, 5 }, /* 9 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 186 | [6] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 187 | 10100, 6, 24, 6, 6, 6, 6 }, /* 12 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 188 | [7] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 189 | 14100, 7, 36, 6, 7, 7, 7 }, /* 18 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 190 | [8] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 191 | 17700, 8, 48, 8, 8, 8, 8 }, /* 24 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 192 | [9] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 193 | 23700, 9, 72, 8, 9, 9, 9 }, /* 36 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 194 | [10] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 195 | 27400, 10, 96, 8, 10, 10, 10 }, /* 48 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 196 | [11] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 197 | 30900, 11, 108, 8, 11, 11, 11 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 198 | [12] = { RC_INVALID, WLAN_RC_PHY_HT_20_SS, 6500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 199 | 6400, 0, 0, 4, 42, 12, 42 }, /* 6.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 200 | [13] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 13000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 201 | 12700, 1, 1, 6, 43, 13, 43 }, /* 13 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 202 | [14] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 19500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 203 | 18800, 2, 2, 6, 44, 14, 44 }, /* 19.5 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 204 | [15] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 26000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 205 | 25000, 3, 3, 8, 45, 15, 45 }, /* 26 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 206 | [16] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 207 | 36700, 4, 4, 8, 46, 16, 46 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 208 | [17] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 52000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 209 | 48100, 5, 5, 8, 47, 17, 47 }, /* 52 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 210 | [18] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 58500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 211 | 53500, 6, 6, 8, 48, 18, 48 }, /* 58.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 212 | [19] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 65000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 213 | 59000, 7, 7, 8, 49, 20, 50 }, /* 65 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 214 | [20] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS_HGI, 72200, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 215 | 65400, 7, 7, 8, 49, 20, 50 }, /* 65 Mb*/ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 216 | [21] = { RC_INVALID, WLAN_RC_PHY_HT_20_DS, 13000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 217 | 12700, 8, 8, 4, 51, 21, 51 }, /* 13 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 218 | [22] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 26000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 219 | 24800, 9, 9, 6, 52, 22, 52 }, /* 26 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 220 | [23] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 221 | 36600, 10, 10, 6, 53, 23, 53 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 222 | [24] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 52000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 223 | 48100, 11, 11, 8, 54, 24, 54 }, /* 52 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 224 | [25] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 78000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 225 | 69500, 12, 12, 8, 55, 25, 55 }, /* 78 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 226 | [26] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 104000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 227 | 89500, 13, 13, 8, 56, 26, 56 }, /* 104 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 228 | [27] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 117000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 229 | 98900, 14, 14, 8, 57, 27, 57 }, /* 117 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 230 | [28] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 130000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 231 | 108300, 15, 15, 8, 58, 29, 59 }, /* 130 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 232 | [29] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS_HGI, 144400, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 233 | 120000, 15, 15, 8, 58, 29, 59 }, /* 144.4 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 234 | [30] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 19500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 235 | 17400, 16, 16, 4, 60, 30, 60 }, /* 19.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 236 | [31] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 39000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 237 | 35100, 17, 17, 6, 61, 31, 61 }, /* 39 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 238 | [32] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 58500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 239 | 52600, 18, 18, 6, 62, 32, 62 }, /* 58.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 240 | [33] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 78000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 241 | 70400, 19, 19, 8, 63, 33, 63 }, /* 78 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 242 | [34] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS, 117000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 243 | 104900, 20, 20, 8, 64, 35, 65 }, /* 117 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 244 | [35] = { RC_INVALID, WLAN_RC_PHY_HT_20_TS_HGI, 130000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 245 | 115800, 20, 20, 8, 64, 35, 65 }, /* 130 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 246 | [36] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 156000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 247 | 137200, 21, 21, 8, 66, 37, 67 }, /* 156 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 248 | [37] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 173300, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 249 | 151100, 21, 21, 8, 66, 37, 67 }, /* 173.3 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 250 | [38] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 175500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 251 | 152800, 22, 22, 8, 68, 39, 69 }, /* 175.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 252 | [39] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 195000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 253 | 168400, 22, 22, 8, 68, 39, 69 }, /* 195 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 254 | [40] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 195000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 255 | 168400, 23, 23, 8, 70, 41, 71 }, /* 195 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 256 | [41] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 216700, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 257 | 185000, 23, 23, 8, 70, 41, 71 }, /* 216.7 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 258 | [42] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 13500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 259 | 13200, 0, 0, 8, 42, 42, 42 }, /* 13.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 260 | [43] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 27500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 261 | 25900, 1, 1, 8, 43, 43, 43 }, /* 27.0 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 262 | [44] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 40500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 263 | 38600, 2, 2, 8, 44, 44, 44 }, /* 40.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 264 | [45] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 265 | 49800, 3, 3, 8, 45, 45, 45 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 266 | [46] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 81500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 267 | 72200, 4, 4, 8, 46, 46, 46 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 268 | [47] = { RC_HT_S_40 , WLAN_RC_PHY_HT_40_SS, 108000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 269 | 92900, 5, 5, 8, 47, 47, 47 }, /* 108 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 270 | [48] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 121500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 271 | 102700, 6, 6, 8, 48, 48, 48 }, /* 121.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 272 | [49] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 135000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 273 | 112000, 7, 7, 8, 49, 50, 50 }, /* 135 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 274 | [50] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 275 | 122000, 7, 7, 8, 49, 50, 50 }, /* 150 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 276 | [51] = { RC_INVALID, WLAN_RC_PHY_HT_40_DS, 27000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 277 | 25800, 8, 8, 8, 51, 51, 51 }, /* 27 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 278 | [52] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 54000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 279 | 49800, 9, 9, 8, 52, 52, 52 }, /* 54 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 280 | [53] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 81000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 281 | 71900, 10, 10, 8, 53, 53, 53 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 282 | [54] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 108000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 283 | 92500, 11, 11, 8, 54, 54, 54 }, /* 108 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 284 | [55] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 162000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 285 | 130300, 12, 12, 8, 55, 55, 55 }, /* 162 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 286 | [56] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 216000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 287 | 162800, 13, 13, 8, 56, 56, 56 }, /* 216 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 288 | [57] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 243000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 289 | 178200, 14, 14, 8, 57, 57, 57 }, /* 243 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 290 | [58] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 270000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 291 | 192100, 15, 15, 8, 58, 59, 59 }, /* 270 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 292 | [59] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS_HGI, 300000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 293 | 207000, 15, 15, 8, 58, 59, 59 }, /* 300 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 294 | [60] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 40500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 295 | 36100, 16, 16, 8, 60, 60, 60 }, /* 40.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 296 | [61] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 81000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 297 | 72900, 17, 17, 8, 61, 61, 61 }, /* 81 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 298 | [62] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 121500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 299 | 108300, 18, 18, 8, 62, 62, 62 }, /* 121.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 300 | [63] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 162000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 301 | 142000, 19, 19, 8, 63, 63, 63 }, /* 162 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 302 | [64] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS, 243000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 303 | 205100, 20, 20, 8, 64, 65, 65 }, /* 243 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 304 | [65] = { RC_INVALID, WLAN_RC_PHY_HT_40_TS_HGI, 270000, |
Mohammed Shafi Shajakhan | 7a82665 | 2010-10-13 11:47:09 +0530 | [diff] [blame] | 305 | 224700, 20, 20, 8, 64, 65, 65 }, /* 270 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 306 | [66] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 324000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 307 | 263100, 21, 21, 8, 66, 67, 67 }, /* 324 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 308 | [67] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 360000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 309 | 288000, 21, 21, 8, 66, 67, 67 }, /* 360 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 310 | [68] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 364500, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 311 | 290700, 22, 22, 8, 68, 69, 69 }, /* 364.5 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 312 | [69] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 405000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 313 | 317200, 22, 22, 8, 68, 69, 69 }, /* 405 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 314 | [70] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 405000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 315 | 317200, 23, 23, 8, 70, 71, 71 }, /* 405 Mb */ |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 316 | [71] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 450000, |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 317 | 346400, 23, 23, 8, 70, 71, 71 }, /* 450 Mb */ |
Felix Fietkau | 1fe8234 | 2009-11-23 22:22:27 +0100 | [diff] [blame] | 318 | }, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 319 | 50, /* probe interval */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 320 | WLAN_RC_HT_FLAG, /* Phy rates allowed initially */ |
| 321 | }; |
| 322 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 323 | static const struct ath_rate_table ar5416_11a_ratetable = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 324 | 8, |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 325 | 0, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 326 | { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 327 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 328 | 5400, 0, 12, 0}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 329 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 330 | 7800, 1, 18, 0}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 331 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 332 | 10000, 2, 24, 2}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 333 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 334 | 13900, 3, 36, 2}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 335 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 336 | 17300, 4, 48, 4}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 337 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 338 | 23000, 5, 72, 4}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 339 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 340 | 27400, 6, 96, 4}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 341 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 342 | 29300, 7, 108, 4}, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 343 | }, |
| 344 | 50, /* probe interval */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 345 | 0, /* Phy rates allowed initially */ |
| 346 | }; |
| 347 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 348 | static const struct ath_rate_table ar5416_11g_ratetable = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 349 | 12, |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 350 | 0, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 351 | { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 352 | { RC_L_SDT, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 353 | 900, 0, 2, 0}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 354 | { RC_L_SDT, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 355 | 1900, 1, 4, 1}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 356 | { RC_L_SDT, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 357 | 4900, 2, 11, 2}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 358 | { RC_L_SDT, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 359 | 8100, 3, 22, 3}, |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 360 | { RC_INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 361 | 5400, 4, 12, 4}, |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 362 | { RC_INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 363 | 7800, 5, 18, 4}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 364 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 365 | 10000, 6, 24, 6}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 366 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 367 | 13900, 7, 36, 6}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 368 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 369 | 17300, 8, 48, 8}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 370 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 371 | 23000, 9, 72, 8}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 372 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 373 | 27400, 10, 96, 8}, |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 374 | { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ |
Senthil Balasubramanian | aaa41ec | 2010-07-27 19:16:34 +0530 | [diff] [blame] | 375 | 29300, 11, 108, 8}, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 376 | }, |
| 377 | 50, /* probe interval */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 378 | 0, /* Phy rates allowed initially */ |
| 379 | }; |
| 380 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 381 | static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table, |
| 382 | struct ieee80211_tx_rate *rate); |
| 383 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 384 | static void ath_rc_sort_validrates(const struct ath_rate_table *rate_table, |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 385 | struct ath_rate_priv *ath_rc_priv) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 386 | { |
| 387 | u8 i, j, idx, idx_next; |
| 388 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 389 | for (i = ath_rc_priv->max_valid_rate - 1; i > 0; i--) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 390 | for (j = 0; j <= i-1; j++) { |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 391 | idx = ath_rc_priv->valid_rate_index[j]; |
| 392 | idx_next = ath_rc_priv->valid_rate_index[j+1]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 393 | |
| 394 | if (rate_table->info[idx].ratekbps > |
| 395 | rate_table->info[idx_next].ratekbps) { |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 396 | ath_rc_priv->valid_rate_index[j] = idx_next; |
| 397 | ath_rc_priv->valid_rate_index[j+1] = idx; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 398 | } |
| 399 | } |
| 400 | } |
| 401 | } |
| 402 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 403 | static void ath_rc_init_valid_txmask(struct ath_rate_priv *ath_rc_priv) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 404 | { |
| 405 | u8 i; |
| 406 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 407 | for (i = 0; i < ath_rc_priv->rate_table_size; i++) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 408 | ath_rc_priv->valid_rate_index[i] = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 409 | } |
| 410 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 411 | static inline void ath_rc_set_valid_txmask(struct ath_rate_priv *ath_rc_priv, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 412 | u8 index, int valid_tx_rate) |
| 413 | { |
Luis R. Rodriguez | 9680e8a | 2009-09-13 23:28:00 -0700 | [diff] [blame] | 414 | BUG_ON(index > ath_rc_priv->rate_table_size); |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 415 | ath_rc_priv->valid_rate_index[index] = !!valid_tx_rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 416 | } |
| 417 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 418 | static inline |
| 419 | int ath_rc_get_nextvalid_txrate(const struct ath_rate_table *rate_table, |
| 420 | struct ath_rate_priv *ath_rc_priv, |
| 421 | u8 cur_valid_txrate, |
| 422 | u8 *next_idx) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 423 | { |
| 424 | u8 i; |
| 425 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 426 | for (i = 0; i < ath_rc_priv->max_valid_rate - 1; i++) { |
| 427 | if (ath_rc_priv->valid_rate_index[i] == cur_valid_txrate) { |
| 428 | *next_idx = ath_rc_priv->valid_rate_index[i+1]; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 429 | return 1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 430 | } |
| 431 | } |
| 432 | |
| 433 | /* No more valid rates */ |
| 434 | *next_idx = 0; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 435 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 436 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | /* Return true only for single stream */ |
| 440 | |
| 441 | static int ath_rc_valid_phyrate(u32 phy, u32 capflag, int ignore_cw) |
| 442 | { |
Jouni Malinen | b657ead | 2009-01-13 14:33:49 +0200 | [diff] [blame] | 443 | if (WLAN_RC_PHY_HT(phy) && !(capflag & WLAN_RC_HT_FLAG)) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 444 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 445 | if (WLAN_RC_PHY_DS(phy) && !(capflag & WLAN_RC_DS_FLAG)) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 446 | return 0; |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 447 | if (WLAN_RC_PHY_TS(phy) && !(capflag & WLAN_RC_TS_FLAG)) |
| 448 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 449 | if (WLAN_RC_PHY_SGI(phy) && !(capflag & WLAN_RC_SGI_FLAG)) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 450 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 451 | if (!ignore_cw && WLAN_RC_PHY_HT(phy)) |
| 452 | if (WLAN_RC_PHY_40(phy) && !(capflag & WLAN_RC_40_FLAG)) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 453 | return 0; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 454 | return 1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | static inline int |
Luis R. Rodriguez | 39448b0 | 2009-07-14 20:14:00 -0400 | [diff] [blame] | 458 | ath_rc_get_lower_rix(const struct ath_rate_table *rate_table, |
| 459 | struct ath_rate_priv *ath_rc_priv, |
| 460 | u8 cur_valid_txrate, u8 *next_idx) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 461 | { |
| 462 | int8_t i; |
| 463 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 464 | for (i = 1; i < ath_rc_priv->max_valid_rate ; i++) { |
| 465 | if (ath_rc_priv->valid_rate_index[i] == cur_valid_txrate) { |
| 466 | *next_idx = ath_rc_priv->valid_rate_index[i-1]; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 467 | return 1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 468 | } |
| 469 | } |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 470 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 471 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 472 | } |
| 473 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 474 | static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 475 | const struct ath_rate_table *rate_table, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 476 | u32 capflag) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 477 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 478 | u8 i, hi = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 479 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 480 | for (i = 0; i < rate_table->rate_cnt; i++) { |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 481 | if (rate_table->info[i].rate_flags & RC_LEGACY) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 482 | u32 phy = rate_table->info[i].phy; |
| 483 | u8 valid_rate_count = 0; |
| 484 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 485 | if (!ath_rc_valid_phyrate(phy, capflag, 0)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 486 | continue; |
| 487 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 488 | valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 489 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 490 | ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = i; |
| 491 | ath_rc_priv->valid_phy_ratecnt[phy] += 1; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 492 | ath_rc_set_valid_txmask(ath_rc_priv, i, 1); |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 493 | hi = i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 494 | } |
| 495 | } |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 496 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 497 | return hi; |
| 498 | } |
| 499 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 500 | static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 501 | const struct ath_rate_table *rate_table, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 502 | struct ath_rateset *rateset, |
| 503 | u32 capflag) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 504 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 505 | u8 i, j, hi = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 506 | |
| 507 | /* Use intersection of working rates and valid rates */ |
| 508 | for (i = 0; i < rateset->rs_nrates; i++) { |
| 509 | for (j = 0; j < rate_table->rate_cnt; j++) { |
| 510 | u32 phy = rate_table->info[j].phy; |
Mohammed Shafi Shajakhan | 4fc4fbd | 2010-10-28 19:51:47 +0530 | [diff] [blame] | 511 | u16 rate_flags = rate_table->info[j].rate_flags; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 512 | u8 rate = rateset->rs_rates[i]; |
| 513 | u8 dot11rate = rate_table->info[j].dot11rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 514 | |
| 515 | /* We allow a rate only if its valid and the |
| 516 | * capflag matches one of the validity |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 517 | * (VALID/VALID_20/VALID_40) flags */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 518 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 519 | if ((rate == dot11rate) && |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 520 | (rate_flags & WLAN_RC_CAP_MODE(capflag)) == |
| 521 | WLAN_RC_CAP_MODE(capflag) && |
| 522 | (rate_flags & WLAN_RC_CAP_STREAM(capflag)) && |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 523 | !WLAN_RC_PHY_HT(phy)) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 524 | u8 valid_rate_count = 0; |
| 525 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 526 | if (!ath_rc_valid_phyrate(phy, capflag, 0)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 527 | continue; |
| 528 | |
| 529 | valid_rate_count = |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 530 | ath_rc_priv->valid_phy_ratecnt[phy]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 531 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 532 | ath_rc_priv->valid_phy_rateidx[phy] |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 533 | [valid_rate_count] = j; |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 534 | ath_rc_priv->valid_phy_ratecnt[phy] += 1; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 535 | ath_rc_set_valid_txmask(ath_rc_priv, j, 1); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 536 | hi = A_MAX(hi, j); |
| 537 | } |
| 538 | } |
| 539 | } |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 540 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 541 | return hi; |
| 542 | } |
| 543 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 544 | static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 545 | const struct ath_rate_table *rate_table, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 546 | u8 *mcs_set, u32 capflag) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 547 | { |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 548 | struct ath_rateset *rateset = (struct ath_rateset *)mcs_set; |
| 549 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 550 | u8 i, j, hi = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 551 | |
| 552 | /* Use intersection of working rates and valid rates */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 553 | for (i = 0; i < rateset->rs_nrates; i++) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 554 | for (j = 0; j < rate_table->rate_cnt; j++) { |
| 555 | u32 phy = rate_table->info[j].phy; |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 556 | u16 rate_flags = rate_table->info[j].rate_flags; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 557 | u8 rate = rateset->rs_rates[i]; |
| 558 | u8 dot11rate = rate_table->info[j].dot11rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 559 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 560 | if ((rate != dot11rate) || !WLAN_RC_PHY_HT(phy) || |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 561 | !(rate_flags & WLAN_RC_CAP_STREAM(capflag)) || |
| 562 | !WLAN_RC_PHY_HT_VALID(rate_flags, capflag)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 563 | continue; |
| 564 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 565 | if (!ath_rc_valid_phyrate(phy, capflag, 0)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 566 | continue; |
| 567 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 568 | ath_rc_priv->valid_phy_rateidx[phy] |
| 569 | [ath_rc_priv->valid_phy_ratecnt[phy]] = j; |
| 570 | ath_rc_priv->valid_phy_ratecnt[phy] += 1; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 571 | ath_rc_set_valid_txmask(ath_rc_priv, j, 1); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 572 | hi = A_MAX(hi, j); |
| 573 | } |
| 574 | } |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 575 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 576 | return hi; |
| 577 | } |
| 578 | |
Luis R. Rodriguez | 201c3b4 | 2009-07-14 20:14:04 -0400 | [diff] [blame] | 579 | /* Finds the highest rate index we can use */ |
| 580 | static u8 ath_rc_get_highest_rix(struct ath_softc *sc, |
| 581 | struct ath_rate_priv *ath_rc_priv, |
| 582 | const struct ath_rate_table *rate_table, |
| 583 | int *is_probing) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 584 | { |
Vasanthakumar Thiagarajan | 39a4caf | 2009-07-14 20:14:10 -0400 | [diff] [blame] | 585 | u32 best_thruput, this_thruput, now_msec; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 586 | u8 rate, next_rate, best_rate, maxindex, minindex; |
Vasanthakumar Thiagarajan | 39a4caf | 2009-07-14 20:14:10 -0400 | [diff] [blame] | 587 | int8_t index = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 588 | |
| 589 | now_msec = jiffies_to_msecs(jiffies); |
Vasanthakumar Thiagarajan | 39a4caf | 2009-07-14 20:14:10 -0400 | [diff] [blame] | 590 | *is_probing = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 591 | best_thruput = 0; |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 592 | maxindex = ath_rc_priv->max_valid_rate-1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 593 | minindex = 0; |
| 594 | best_rate = minindex; |
| 595 | |
| 596 | /* |
| 597 | * Try the higher rate first. It will reduce memory moving time |
| 598 | * if we have very good channel characteristics. |
| 599 | */ |
| 600 | for (index = maxindex; index >= minindex ; index--) { |
| 601 | u8 per_thres; |
| 602 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 603 | rate = ath_rc_priv->valid_rate_index[index]; |
| 604 | if (rate > ath_rc_priv->rate_max_phy) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 605 | continue; |
| 606 | |
| 607 | /* |
| 608 | * For TCP the average collision rate is around 11%, |
| 609 | * so we ignore PERs less than this. This is to |
| 610 | * prevent the rate we are currently using (whose |
| 611 | * PER might be in the 10-15 range because of TCP |
| 612 | * collisions) looking worse than the next lower |
| 613 | * rate whose PER has decayed close to 0. If we |
| 614 | * used to next lower rate, its PER would grow to |
| 615 | * 10-15 and we would be worse off then staying |
| 616 | * at the current rate. |
| 617 | */ |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 618 | per_thres = ath_rc_priv->per[rate]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 619 | if (per_thres < 12) |
| 620 | per_thres = 12; |
| 621 | |
| 622 | this_thruput = rate_table->info[rate].user_ratekbps * |
| 623 | (100 - per_thres); |
| 624 | |
| 625 | if (best_thruput <= this_thruput) { |
| 626 | best_thruput = this_thruput; |
| 627 | best_rate = rate; |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | rate = best_rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 632 | |
| 633 | /* |
| 634 | * Must check the actual rate (ratekbps) to account for |
| 635 | * non-monoticity of 11g's rate table |
| 636 | */ |
| 637 | |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 638 | if (rate >= ath_rc_priv->rate_max_phy) { |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 639 | rate = ath_rc_priv->rate_max_phy; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 640 | |
| 641 | /* Probe the next allowed phy state */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 642 | if (ath_rc_get_nextvalid_txrate(rate_table, |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 643 | ath_rc_priv, rate, &next_rate) && |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 644 | (now_msec - ath_rc_priv->probe_time > |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 645 | rate_table->probe_interval) && |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 646 | (ath_rc_priv->hw_maxretry_pktcnt >= 1)) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 647 | rate = next_rate; |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 648 | ath_rc_priv->probe_rate = rate; |
| 649 | ath_rc_priv->probe_time = now_msec; |
| 650 | ath_rc_priv->hw_maxretry_pktcnt = 0; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 651 | *is_probing = 1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 652 | } |
| 653 | } |
| 654 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 655 | if (rate > (ath_rc_priv->rate_table_size - 1)) |
| 656 | rate = ath_rc_priv->rate_table_size - 1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 657 | |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 658 | if (RC_TS_ONLY(rate_table->info[rate].rate_flags) && |
| 659 | (ath_rc_priv->ht_cap & WLAN_RC_TS_FLAG)) |
| 660 | return rate; |
| 661 | |
| 662 | if (RC_DS_OR_LATER(rate_table->info[rate].rate_flags) && |
| 663 | (ath_rc_priv->ht_cap & (WLAN_RC_DS_FLAG | WLAN_RC_TS_FLAG))) |
Luis R. Rodriguez | e43419f | 2009-07-14 20:13:54 -0400 | [diff] [blame] | 664 | return rate; |
| 665 | |
Senthil Balasubramanian | f63b340 | 2010-07-27 19:16:31 +0530 | [diff] [blame] | 666 | if (RC_SS_OR_LEGACY(rate_table->info[rate].rate_flags)) |
Luis R. Rodriguez | e43419f | 2009-07-14 20:13:54 -0400 | [diff] [blame] | 667 | return rate; |
| 668 | |
| 669 | /* This should not happen */ |
| 670 | WARN_ON(1); |
| 671 | |
| 672 | rate = ath_rc_priv->valid_rate_index[0]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 673 | |
| 674 | return rate; |
| 675 | } |
| 676 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 677 | static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table, |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 678 | struct ieee80211_tx_rate *rate, |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 679 | struct ieee80211_tx_rate_control *txrc, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 680 | u8 tries, u8 rix, int rtsctsenable) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 681 | { |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 682 | rate->count = tries; |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 683 | rate->idx = rate_table->info[rix].ratecode; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 684 | |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 685 | if (txrc->short_preamble) |
| 686 | rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE; |
| 687 | if (txrc->rts || rtsctsenable) |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 688 | rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS; |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 689 | |
| 690 | if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) { |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 691 | rate->flags |= IEEE80211_TX_RC_MCS; |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 692 | if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) |
| 693 | rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
| 694 | if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) |
| 695 | rate->flags |= IEEE80211_TX_RC_SHORT_GI; |
| 696 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 697 | } |
| 698 | |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 699 | static void ath_rc_rate_set_rtscts(struct ath_softc *sc, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 700 | const struct ath_rate_table *rate_table, |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 701 | struct ieee80211_tx_info *tx_info) |
| 702 | { |
| 703 | struct ieee80211_tx_rate *rates = tx_info->control.rates; |
| 704 | int i = 0, rix = 0, cix, enable_g_protection = 0; |
| 705 | |
| 706 | /* get the cix for the lowest valid rix */ |
| 707 | for (i = 3; i >= 0; i--) { |
| 708 | if (rates[i].count && (rates[i].idx >= 0)) { |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 709 | rix = ath_rc_get_rateindex(rate_table, &rates[i]); |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 710 | break; |
| 711 | } |
| 712 | } |
| 713 | cix = rate_table->info[rix].ctrl_rate; |
| 714 | |
| 715 | /* All protection frames are transmited at 2Mb/s for 802.11g, |
| 716 | * otherwise we transmit them at 1Mb/s */ |
| 717 | if (sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ && |
| 718 | !conf_is_ht(&sc->hw->conf)) |
| 719 | enable_g_protection = 1; |
| 720 | |
| 721 | /* |
| 722 | * If 802.11g protection is enabled, determine whether to use RTS/CTS or |
| 723 | * just CTS. Note that this is only done for OFDM/HT unicast frames. |
| 724 | */ |
| 725 | if ((sc->sc_flags & SC_OP_PROTECT_ENABLE) && |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 726 | (rate_table->info[rix].phy == WLAN_RC_PHY_OFDM || |
| 727 | WLAN_RC_PHY_HT(rate_table->info[rix].phy))) { |
| 728 | rates[0].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT; |
| 729 | cix = rate_table->info[enable_g_protection].ctrl_rate; |
| 730 | } |
| 731 | |
| 732 | tx_info->control.rts_cts_rate_idx = cix; |
| 733 | } |
| 734 | |
Luis R. Rodriguez | e25739a | 2009-07-14 20:14:09 -0400 | [diff] [blame] | 735 | static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, |
| 736 | struct ieee80211_tx_rate_control *txrc) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 737 | { |
Luis R. Rodriguez | e25739a | 2009-07-14 20:14:09 -0400 | [diff] [blame] | 738 | struct ath_softc *sc = priv; |
| 739 | struct ath_rate_priv *ath_rc_priv = priv_sta; |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 740 | const struct ath_rate_table *rate_table; |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 741 | struct sk_buff *skb = txrc->skb; |
| 742 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 743 | struct ieee80211_tx_rate *rates = tx_info->control.rates; |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 744 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| 745 | __le16 fc = hdr->frame_control; |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 746 | u8 try_per_rate, i = 0, rix; |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 747 | int is_probe = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 748 | |
Luis R. Rodriguez | e25739a | 2009-07-14 20:14:09 -0400 | [diff] [blame] | 749 | if (rate_control_send_low(sta, priv_sta, txrc)) |
| 750 | return; |
| 751 | |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 752 | /* |
| 753 | * For Multi Rate Retry we use a different number of |
| 754 | * retry attempt counts. This ends up looking like this: |
| 755 | * |
Felix Fietkau | 6589651 | 2010-01-24 03:26:11 +0100 | [diff] [blame] | 756 | * MRR[0] = 4 |
| 757 | * MRR[1] = 4 |
| 758 | * MRR[2] = 4 |
| 759 | * MRR[3] = 8 |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 760 | * |
| 761 | */ |
Felix Fietkau | 6589651 | 2010-01-24 03:26:11 +0100 | [diff] [blame] | 762 | try_per_rate = 4; |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 763 | |
Felix Fietkau | 4e99001 | 2010-10-13 16:43:27 +0200 | [diff] [blame] | 764 | rate_table = ath_rc_priv->rate_table; |
Luis R. Rodriguez | 201c3b4 | 2009-07-14 20:14:04 -0400 | [diff] [blame] | 765 | rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 766 | |
Luis R. Rodriguez | b0a3344 | 2010-04-15 17:39:39 -0400 | [diff] [blame] | 767 | /* |
| 768 | * If we're in HT mode and both us and our peer supports LDPC. |
| 769 | * We don't need to check our own device's capabilities as our own |
| 770 | * ht capabilities would have already been intersected with our peer's. |
| 771 | */ |
| 772 | if (conf_is_ht(&sc->hw->conf) && |
| 773 | (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING)) |
| 774 | tx_info->flags |= IEEE80211_TX_CTL_LDPC; |
| 775 | |
Felix Fietkau | 58b5190 | 2010-04-19 19:57:37 +0200 | [diff] [blame] | 776 | if (conf_is_ht(&sc->hw->conf) && |
| 777 | (sta->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC)) |
| 778 | tx_info->flags |= (1 << IEEE80211_TX_CTL_STBC_SHIFT); |
| 779 | |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 780 | if (is_probe) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 781 | /* set one try for probe rates. For the |
| 782 | * probes don't enable rts */ |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 783 | ath_rc_rate_set_series(rate_table, &rates[i++], txrc, |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 784 | 1, rix, 0); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 785 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 786 | /* Get the next tried/allowed rate. No RTS for the next series |
| 787 | * after the probe rate |
| 788 | */ |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 789 | ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix); |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 790 | ath_rc_rate_set_series(rate_table, &rates[i++], txrc, |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 791 | try_per_rate, rix, 0); |
Vasanthakumar Thiagarajan | 14587ce | 2009-03-12 15:32:54 +0530 | [diff] [blame] | 792 | |
| 793 | tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 794 | } else { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 795 | /* Set the choosen rate. No RTS for first series entry. */ |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 796 | ath_rc_rate_set_series(rate_table, &rates[i++], txrc, |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 797 | try_per_rate, rix, 0); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 798 | } |
| 799 | |
| 800 | /* Fill in the other rates for multirate retry */ |
Sujith | 3900898 | 2009-01-30 14:29:15 +0530 | [diff] [blame] | 801 | for ( ; i < 4; i++) { |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 802 | /* Use twice the number of tries for the last MRR segment. */ |
| 803 | if (i + 1 == 4) |
Felix Fietkau | 6589651 | 2010-01-24 03:26:11 +0100 | [diff] [blame] | 804 | try_per_rate = 8; |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 805 | |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 806 | ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 807 | /* All other rates in the series have RTS enabled */ |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 808 | ath_rc_rate_set_series(rate_table, &rates[i], txrc, |
Felix Fietkau | 5c0ba62 | 2010-02-19 01:46:36 +0100 | [diff] [blame] | 809 | try_per_rate, rix, 1); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | /* |
| 813 | * NB:Change rate series to enable aggregation when operating |
| 814 | * at lower MCS rates. When first rate in series is MCS2 |
| 815 | * in HT40 @ 2.4GHz, series should look like: |
| 816 | * |
| 817 | * {MCS2, MCS1, MCS0, MCS0}. |
| 818 | * |
| 819 | * When first rate in series is MCS3 in HT20 @ 2.4GHz, series should |
| 820 | * look like: |
| 821 | * |
| 822 | * {MCS3, MCS2, MCS1, MCS1} |
| 823 | * |
| 824 | * So, set fourth rate in series to be same as third one for |
| 825 | * above conditions. |
| 826 | */ |
Sujith | 3706de6 | 2008-12-07 21:42:10 +0530 | [diff] [blame] | 827 | if ((sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ) && |
Luis R. Rodriguez | ecf7044 | 2008-12-23 15:58:43 -0800 | [diff] [blame] | 828 | (conf_is_ht(&sc->hw->conf))) { |
Sujith | 40990ec | 2008-12-07 21:41:37 +0530 | [diff] [blame] | 829 | u8 dot11rate = rate_table->info[rix].dot11rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 830 | u8 phy = rate_table->info[rix].phy; |
| 831 | if (i == 4 && |
| 832 | ((dot11rate == 2 && phy == WLAN_RC_PHY_HT_40_SS) || |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 833 | (dot11rate == 3 && phy == WLAN_RC_PHY_HT_20_SS))) { |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 834 | rates[3].idx = rates[2].idx; |
| 835 | rates[3].flags = rates[2].flags; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 836 | } |
| 837 | } |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 838 | |
| 839 | /* |
| 840 | * Force hardware to use computed duration for next |
| 841 | * fragment by disabling multi-rate retry, which |
| 842 | * updates duration based on the multi-rate duration table. |
| 843 | * |
| 844 | * FIXME: Fix duration |
| 845 | */ |
Luis R. Rodriguez | 7682a76 | 2009-07-14 20:14:05 -0400 | [diff] [blame] | 846 | if (ieee80211_has_morefrags(fc) || |
| 847 | (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)) { |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 848 | rates[1].count = rates[2].count = rates[3].count = 0; |
| 849 | rates[1].idx = rates[2].idx = rates[3].idx = 0; |
| 850 | rates[0].count = ATH_TXMAXTRY; |
| 851 | } |
| 852 | |
| 853 | /* Setup RTS/CTS */ |
| 854 | ath_rc_rate_set_rtscts(sc, rate_table, tx_info); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 855 | } |
| 856 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 857 | static bool ath_rc_update_per(struct ath_softc *sc, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 858 | const struct ath_rate_table *rate_table, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 859 | struct ath_rate_priv *ath_rc_priv, |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 860 | struct ieee80211_tx_info *tx_info, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 861 | int tx_rate, int xretries, int retries, |
| 862 | u32 now_msec) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 863 | { |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 864 | bool state_change = false; |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 865 | int count, n_bad_frames; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 866 | u8 last_per; |
Joe Perches | 07b2fa5 | 2010-11-20 18:38:53 -0800 | [diff] [blame] | 867 | static const u32 nretry_to_per_lookup[10] = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 868 | 100 * 0 / 1, |
| 869 | 100 * 1 / 4, |
| 870 | 100 * 1 / 2, |
| 871 | 100 * 3 / 4, |
| 872 | 100 * 4 / 5, |
| 873 | 100 * 5 / 6, |
| 874 | 100 * 6 / 7, |
| 875 | 100 * 7 / 8, |
| 876 | 100 * 8 / 9, |
| 877 | 100 * 9 / 10 |
| 878 | }; |
| 879 | |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 880 | last_per = ath_rc_priv->per[tx_rate]; |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 881 | n_bad_frames = tx_info->status.ampdu_len - tx_info->status.ampdu_ack_len; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 882 | |
| 883 | if (xretries) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 884 | if (xretries == 1) { |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 885 | ath_rc_priv->per[tx_rate] += 30; |
| 886 | if (ath_rc_priv->per[tx_rate] > 100) |
| 887 | ath_rc_priv->per[tx_rate] = 100; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 888 | } else { |
| 889 | /* xretries == 2 */ |
Julia Lawall | 87c1687 | 2008-11-09 17:56:10 +0100 | [diff] [blame] | 890 | count = ARRAY_SIZE(nretry_to_per_lookup); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 891 | if (retries >= count) |
| 892 | retries = count - 1; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 893 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 894 | /* new_PER = 7/8*old_PER + 1/8*(currentPER) */ |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 895 | ath_rc_priv->per[tx_rate] = |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 896 | (u8)(last_per - (last_per >> 3) + (100 >> 3)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | /* xretries == 1 or 2 */ |
| 900 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 901 | if (ath_rc_priv->probe_rate == tx_rate) |
| 902 | ath_rc_priv->probe_rate = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 903 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 904 | } else { /* xretries == 0 */ |
Julia Lawall | 87c1687 | 2008-11-09 17:56:10 +0100 | [diff] [blame] | 905 | count = ARRAY_SIZE(nretry_to_per_lookup); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 906 | if (retries >= count) |
| 907 | retries = count - 1; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 908 | |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 909 | if (n_bad_frames) { |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 910 | /* new_PER = 7/8*old_PER + 1/8*(currentPER) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 911 | * Assuming that n_frames is not 0. The current PER |
| 912 | * from the retries is 100 * retries / (retries+1), |
| 913 | * since the first retries attempts failed, and the |
| 914 | * next one worked. For the one that worked, |
| 915 | * n_bad_frames subframes out of n_frames wored, |
| 916 | * so the PER for that part is |
| 917 | * 100 * n_bad_frames / n_frames, and it contributes |
| 918 | * 100 * n_bad_frames / (n_frames * (retries+1)) to |
| 919 | * the above PER. The expression below is a |
| 920 | * simplified version of the sum of these two terms. |
| 921 | */ |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 922 | if (tx_info->status.ampdu_len > 0) { |
| 923 | int n_frames, n_bad_tries; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 924 | u8 cur_per, new_per; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 925 | |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 926 | n_bad_tries = retries * tx_info->status.ampdu_len + |
| 927 | n_bad_frames; |
| 928 | n_frames = tx_info->status.ampdu_len * (retries + 1); |
| 929 | cur_per = (100 * n_bad_tries / n_frames) >> 3; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 930 | new_per = (u8)(last_per - (last_per >> 3) + cur_per); |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 931 | ath_rc_priv->per[tx_rate] = new_per; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 932 | } |
| 933 | } else { |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 934 | ath_rc_priv->per[tx_rate] = |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 935 | (u8)(last_per - (last_per >> 3) + |
| 936 | (nretry_to_per_lookup[retries] >> 3)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 937 | } |
| 938 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 939 | |
| 940 | /* |
| 941 | * If we got at most one retry then increase the max rate if |
| 942 | * this was a probe. Otherwise, ignore the probe. |
| 943 | */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 944 | if (ath_rc_priv->probe_rate && ath_rc_priv->probe_rate == tx_rate) { |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 945 | if (retries > 0 || 2 * n_bad_frames > tx_info->status.ampdu_len) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 946 | /* |
| 947 | * Since we probed with just a single attempt, |
| 948 | * any retries means the probe failed. Also, |
| 949 | * if the attempt worked, but more than half |
| 950 | * the subframes were bad then also consider |
| 951 | * the probe a failure. |
| 952 | */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 953 | ath_rc_priv->probe_rate = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 954 | } else { |
| 955 | u8 probe_rate = 0; |
| 956 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 957 | ath_rc_priv->rate_max_phy = |
| 958 | ath_rc_priv->probe_rate; |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 959 | probe_rate = ath_rc_priv->probe_rate; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 960 | |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 961 | if (ath_rc_priv->per[probe_rate] > 30) |
| 962 | ath_rc_priv->per[probe_rate] = 20; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 963 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 964 | ath_rc_priv->probe_rate = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 965 | |
| 966 | /* |
| 967 | * Since this probe succeeded, we allow the next |
| 968 | * probe twice as soon. This allows the maxRate |
| 969 | * to move up faster if the probes are |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 970 | * successful. |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 971 | */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 972 | ath_rc_priv->probe_time = |
| 973 | now_msec - rate_table->probe_interval / 2; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 974 | } |
| 975 | } |
| 976 | |
| 977 | if (retries > 0) { |
| 978 | /* |
| 979 | * Don't update anything. We don't know if |
| 980 | * this was because of collisions or poor signal. |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 981 | */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 982 | ath_rc_priv->hw_maxretry_pktcnt = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 983 | } else { |
| 984 | /* |
| 985 | * It worked with no retries. First ignore bogus (small) |
| 986 | * rssi_ack values. |
| 987 | */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 988 | if (tx_rate == ath_rc_priv->rate_max_phy && |
| 989 | ath_rc_priv->hw_maxretry_pktcnt < 255) { |
| 990 | ath_rc_priv->hw_maxretry_pktcnt++; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 991 | } |
| 992 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 993 | } |
| 994 | } |
Vasanthakumar Thiagarajan | 39a4caf | 2009-07-14 20:14:10 -0400 | [diff] [blame] | 995 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 996 | return state_change; |
| 997 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 998 | |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 999 | static void ath_debug_stat_retries(struct ath_rate_priv *rc, int rix, |
| 1000 | int xretries, int retries, u8 per) |
| 1001 | { |
| 1002 | struct ath_rc_stats *stats = &rc->rcstats[rix]; |
| 1003 | |
| 1004 | stats->xretries += xretries; |
| 1005 | stats->retries += retries; |
| 1006 | stats->per = per; |
| 1007 | } |
| 1008 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1009 | /* Update PER, RSSI and whatever else that the code thinks it is doing. |
| 1010 | If you can make sense of all this, you really need to go out more. */ |
| 1011 | |
| 1012 | static void ath_rc_update_ht(struct ath_softc *sc, |
| 1013 | struct ath_rate_priv *ath_rc_priv, |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1014 | struct ieee80211_tx_info *tx_info, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1015 | int tx_rate, int xretries, int retries) |
| 1016 | { |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1017 | u32 now_msec = jiffies_to_msecs(jiffies); |
| 1018 | int rate; |
| 1019 | u8 last_per; |
| 1020 | bool state_change = false; |
Felix Fietkau | 4e99001 | 2010-10-13 16:43:27 +0200 | [diff] [blame] | 1021 | const struct ath_rate_table *rate_table = ath_rc_priv->rate_table; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1022 | int size = ath_rc_priv->rate_table_size; |
| 1023 | |
| 1024 | if ((tx_rate < 0) || (tx_rate > rate_table->rate_cnt)) |
| 1025 | return; |
| 1026 | |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1027 | last_per = ath_rc_priv->per[tx_rate]; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1028 | |
| 1029 | /* Update PER first */ |
| 1030 | state_change = ath_rc_update_per(sc, rate_table, ath_rc_priv, |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1031 | tx_info, tx_rate, xretries, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1032 | retries, now_msec); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1033 | |
| 1034 | /* |
| 1035 | * If this rate looks bad (high PER) then stop using it for |
| 1036 | * a while (except if we are probing). |
| 1037 | */ |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1038 | if (ath_rc_priv->per[tx_rate] >= 55 && tx_rate > 0 && |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 1039 | rate_table->info[tx_rate].ratekbps <= |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1040 | rate_table->info[ath_rc_priv->rate_max_phy].ratekbps) { |
Luis R. Rodriguez | 39448b0 | 2009-07-14 20:14:00 -0400 | [diff] [blame] | 1041 | ath_rc_get_lower_rix(rate_table, ath_rc_priv, |
| 1042 | (u8)tx_rate, &ath_rc_priv->rate_max_phy); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1043 | |
| 1044 | /* Don't probe for a little while. */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1045 | ath_rc_priv->probe_time = now_msec; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1046 | } |
| 1047 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1048 | /* Make sure the rates below this have lower PER */ |
| 1049 | /* Monotonicity is kept only for rates below the current rate. */ |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1050 | if (ath_rc_priv->per[tx_rate] < last_per) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1051 | for (rate = tx_rate - 1; rate >= 0; rate--) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1052 | |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1053 | if (ath_rc_priv->per[rate] > |
| 1054 | ath_rc_priv->per[rate+1]) { |
| 1055 | ath_rc_priv->per[rate] = |
| 1056 | ath_rc_priv->per[rate+1]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1057 | } |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | /* Maintain monotonicity for rates above the current rate */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1062 | for (rate = tx_rate; rate < size - 1; rate++) { |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1063 | if (ath_rc_priv->per[rate+1] < |
| 1064 | ath_rc_priv->per[rate]) |
| 1065 | ath_rc_priv->per[rate+1] = |
| 1066 | ath_rc_priv->per[rate]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1067 | } |
| 1068 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1069 | /* Every so often, we reduce the thresholds |
| 1070 | * and PER (different for CCK and OFDM). */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1071 | if (now_msec - ath_rc_priv->per_down_time >= |
Vasanthakumar Thiagarajan | c413046 | 2009-07-14 20:14:12 -0400 | [diff] [blame] | 1072 | rate_table->probe_interval) { |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1073 | for (rate = 0; rate < size; rate++) { |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1074 | ath_rc_priv->per[rate] = |
| 1075 | 7 * ath_rc_priv->per[rate] / 8; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1076 | } |
| 1077 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1078 | ath_rc_priv->per_down_time = now_msec; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1079 | } |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1080 | |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 1081 | ath_debug_stat_retries(ath_rc_priv, tx_rate, xretries, retries, |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1082 | ath_rc_priv->per[tx_rate]); |
Sujith | 029bc43 | 2009-02-04 08:10:26 +0530 | [diff] [blame] | 1083 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1084 | } |
| 1085 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 1086 | static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1087 | struct ieee80211_tx_rate *rate) |
| 1088 | { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 1089 | int rix = 0, i = 0; |
Joe Perches | 07b2fa5 | 2010-11-20 18:38:53 -0800 | [diff] [blame] | 1090 | static const int mcs_rix_off[] = { 7, 15, 20, 21, 22, 23 }; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1091 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 1092 | if (!(rate->flags & IEEE80211_TX_RC_MCS)) |
| 1093 | return rate->idx; |
| 1094 | |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 1095 | while (rate->idx > mcs_rix_off[i] && |
Joe Perches | 07b2fa5 | 2010-11-20 18:38:53 -0800 | [diff] [blame] | 1096 | i < ARRAY_SIZE(mcs_rix_off)) { |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 1097 | rix++; i++; |
| 1098 | } |
| 1099 | |
| 1100 | rix += rate->idx + rate_table->mcs_start; |
| 1101 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1102 | if ((rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && |
| 1103 | (rate->flags & IEEE80211_TX_RC_SHORT_GI)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 1104 | rix = rate_table->info[rix].ht_index; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1105 | else if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 1106 | rix = rate_table->info[rix].sgi_index; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1107 | else if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 1108 | rix = rate_table->info[rix].cw40index; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1109 | |
| 1110 | return rix; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1111 | } |
| 1112 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1113 | static void ath_rc_tx_status(struct ath_softc *sc, |
| 1114 | struct ath_rate_priv *ath_rc_priv, |
| 1115 | struct ieee80211_tx_info *tx_info, |
| 1116 | int final_ts_idx, int xretries, int long_retry) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1117 | { |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 1118 | const struct ath_rate_table *rate_table; |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 1119 | struct ieee80211_tx_rate *rates = tx_info->status.rates; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1120 | u8 flags; |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1121 | u32 i = 0, rix; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1122 | |
Felix Fietkau | 4e99001 | 2010-10-13 16:43:27 +0200 | [diff] [blame] | 1123 | rate_table = ath_rc_priv->rate_table; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1124 | |
| 1125 | /* |
| 1126 | * If the first rate is not the final index, there |
| 1127 | * are intermediate rate failures to be processed. |
| 1128 | */ |
| 1129 | if (final_ts_idx != 0) { |
| 1130 | /* Process intermediate rates that failed.*/ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1131 | for (i = 0; i < final_ts_idx ; i++) { |
| 1132 | if (rates[i].count != 0 && (rates[i].idx >= 0)) { |
| 1133 | flags = rates[i].flags; |
| 1134 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1135 | /* If HT40 and we have switched mode from |
| 1136 | * 40 to 20 => don't update */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1137 | |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 1138 | if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && |
Sujith | f5c38ef | 2009-03-30 15:28:57 +0530 | [diff] [blame] | 1139 | !(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1140 | return; |
Sujith | e63835b | 2008-11-18 09:07:53 +0530 | [diff] [blame] | 1141 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1142 | rix = ath_rc_get_rateindex(rate_table, &rates[i]); |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1143 | ath_rc_update_ht(sc, ath_rc_priv, tx_info, |
| 1144 | rix, xretries ? 1 : 2, |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1145 | rates[i].count); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1146 | } |
| 1147 | } |
| 1148 | } else { |
| 1149 | /* |
| 1150 | * Handle the special case of MIMO PS burst, where the second |
| 1151 | * aggregate is sent out with only one rate and one try. |
| 1152 | * Treating it as an excessive retry penalizes the rate |
| 1153 | * inordinately. |
| 1154 | */ |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 1155 | if (rates[0].count == 1 && xretries == 1) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1156 | xretries = 2; |
| 1157 | } |
| 1158 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1159 | flags = rates[i].flags; |
| 1160 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1161 | /* If HT40 and we have switched mode from 40 to 20 => don't update */ |
Sujith | a8efee4 | 2008-11-18 09:07:30 +0530 | [diff] [blame] | 1162 | if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && |
Sujith | f5c38ef | 2009-03-30 15:28:57 +0530 | [diff] [blame] | 1163 | !(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1164 | return; |
| 1165 | |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1166 | rix = ath_rc_get_rateindex(rate_table, &rates[i]); |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1167 | ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1168 | } |
| 1169 | |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 1170 | static const |
| 1171 | struct ath_rate_table *ath_choose_rate_table(struct ath_softc *sc, |
| 1172 | enum ieee80211_band band, |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 1173 | bool is_ht) |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1174 | { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1175 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1176 | |
| 1177 | switch(band) { |
| 1178 | case IEEE80211_BAND_2GHZ: |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1179 | if (is_ht) |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 1180 | return &ar5416_11ng_ratetable; |
| 1181 | return &ar5416_11g_ratetable; |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1182 | case IEEE80211_BAND_5GHZ: |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1183 | if (is_ht) |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 1184 | return &ar5416_11na_ratetable; |
| 1185 | return &ar5416_11a_ratetable; |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1186 | default: |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1187 | ath_dbg(common, ATH_DBG_CONFIG, "Invalid band\n"); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1188 | return NULL; |
| 1189 | } |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1190 | } |
| 1191 | |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1192 | static void ath_rc_init(struct ath_softc *sc, |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1193 | struct ath_rate_priv *ath_rc_priv, |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1194 | struct ieee80211_supported_band *sband, |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1195 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 1196 | const struct ath_rate_table *rate_table) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1197 | { |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1198 | struct ath_rateset *rateset = &ath_rc_priv->neg_rates; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1199 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1200 | u8 *ht_mcs = (u8 *)&ath_rc_priv->neg_ht_rates; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1201 | u8 i, j, k, hi = 0, hthi = 0; |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1202 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1203 | /* Initial rate table size. Will change depending |
| 1204 | * on the working rate set */ |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1205 | ath_rc_priv->rate_table_size = RATE_TABLE_SIZE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1206 | |
| 1207 | /* Initialize thresholds according to the global rate table */ |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1208 | for (i = 0 ; i < ath_rc_priv->rate_table_size; i++) { |
Vasanthakumar Thiagarajan | 922bac6 | 2009-07-14 20:14:13 -0400 | [diff] [blame] | 1209 | ath_rc_priv->per[i] = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | /* Determine the valid rates */ |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1213 | ath_rc_init_valid_txmask(ath_rc_priv); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1214 | |
| 1215 | for (i = 0; i < WLAN_RC_PHY_MAX; i++) { |
| 1216 | for (j = 0; j < MAX_TX_RATE_PHY; j++) |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1217 | ath_rc_priv->valid_phy_rateidx[i][j] = 0; |
| 1218 | ath_rc_priv->valid_phy_ratecnt[i] = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1219 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1220 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1221 | if (!rateset->rs_nrates) { |
| 1222 | /* No working rate, just initialize valid rates */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1223 | hi = ath_rc_init_validrates(ath_rc_priv, rate_table, |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 1224 | ath_rc_priv->ht_cap); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1225 | } else { |
| 1226 | /* Use intersection of working rates and valid rates */ |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1227 | hi = ath_rc_setvalid_rates(ath_rc_priv, rate_table, |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 1228 | rateset, ath_rc_priv->ht_cap); |
Sujith | 5ddfac3 | 2008-11-18 09:06:44 +0530 | [diff] [blame] | 1229 | if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG) { |
Sujith | 2c5a744 | 2008-11-18 09:08:33 +0530 | [diff] [blame] | 1230 | hthi = ath_rc_setvalid_htrates(ath_rc_priv, |
Sujith | c89424d | 2009-01-30 14:29:28 +0530 | [diff] [blame] | 1231 | rate_table, |
| 1232 | ht_mcs, |
| 1233 | ath_rc_priv->ht_cap); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1234 | } |
| 1235 | hi = A_MAX(hi, hthi); |
| 1236 | } |
| 1237 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1238 | ath_rc_priv->rate_table_size = hi + 1; |
| 1239 | ath_rc_priv->rate_max_phy = 0; |
Luis R. Rodriguez | 9680e8a | 2009-09-13 23:28:00 -0700 | [diff] [blame] | 1240 | BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1241 | |
| 1242 | for (i = 0, k = 0; i < WLAN_RC_PHY_MAX; i++) { |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1243 | for (j = 0; j < ath_rc_priv->valid_phy_ratecnt[i]; j++) { |
| 1244 | ath_rc_priv->valid_rate_index[k++] = |
| 1245 | ath_rc_priv->valid_phy_rateidx[i][j]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1246 | } |
| 1247 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1248 | if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1) |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1249 | || !ath_rc_priv->valid_phy_ratecnt[i]) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1250 | continue; |
| 1251 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1252 | ath_rc_priv->rate_max_phy = ath_rc_priv->valid_phy_rateidx[i][j-1]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1253 | } |
Luis R. Rodriguez | 9680e8a | 2009-09-13 23:28:00 -0700 | [diff] [blame] | 1254 | BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE); |
| 1255 | BUG_ON(k > RATE_TABLE_SIZE); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1256 | |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1257 | ath_rc_priv->max_valid_rate = k; |
Sujith | 256b775 | 2008-11-18 09:03:12 +0530 | [diff] [blame] | 1258 | ath_rc_sort_validrates(rate_table, ath_rc_priv); |
| 1259 | ath_rc_priv->rate_max_phy = ath_rc_priv->valid_rate_index[k-4]; |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 1260 | ath_rc_priv->rate_table = rate_table; |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1261 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1262 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1263 | "RC Initialized with capabilities: 0x%x\n", |
| 1264 | ath_rc_priv->ht_cap); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1265 | } |
| 1266 | |
Sujith | c2da50e | 2009-03-13 08:56:11 +0530 | [diff] [blame] | 1267 | static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta, |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1268 | bool is_cw40, bool is_sgi) |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1269 | { |
| 1270 | u8 caps = 0; |
| 1271 | |
Sujith | c2da50e | 2009-03-13 08:56:11 +0530 | [diff] [blame] | 1272 | if (sta->ht_cap.ht_supported) { |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1273 | caps = WLAN_RC_HT_FLAG; |
Senthil Balasubramanian | 1d9d06a | 2010-07-27 19:16:32 +0530 | [diff] [blame] | 1274 | if (sta->ht_cap.mcs.rx_mask[1] && sta->ht_cap.mcs.rx_mask[2]) |
| 1275 | caps |= WLAN_RC_TS_FLAG | WLAN_RC_DS_FLAG; |
| 1276 | else if (sta->ht_cap.mcs.rx_mask[1]) |
Felix Fietkau | 3553727 | 2010-06-12 17:22:33 +0200 | [diff] [blame] | 1277 | caps |= WLAN_RC_DS_FLAG; |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1278 | if (is_cw40) |
| 1279 | caps |= WLAN_RC_40_FLAG; |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1280 | if (is_sgi) |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1281 | caps |= WLAN_RC_SGI_FLAG; |
| 1282 | } |
| 1283 | |
| 1284 | return caps; |
| 1285 | } |
| 1286 | |
Felix Fietkau | 334b060 | 2010-09-20 13:45:39 +0200 | [diff] [blame] | 1287 | static bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, |
| 1288 | u8 tidno) |
| 1289 | { |
| 1290 | struct ath_atx_tid *txtid; |
| 1291 | |
| 1292 | if (!(sc->sc_flags & SC_OP_TXAGGR)) |
| 1293 | return false; |
| 1294 | |
| 1295 | txtid = ATH_AN_2_TID(an, tidno); |
| 1296 | |
| 1297 | if (!(txtid->state & (AGGR_ADDBA_COMPLETE | AGGR_ADDBA_PROGRESS))) |
| 1298 | return true; |
| 1299 | return false; |
| 1300 | } |
| 1301 | |
| 1302 | |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1303 | /***********************************/ |
| 1304 | /* mac80211 Rate Control callbacks */ |
| 1305 | /***********************************/ |
| 1306 | |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 1307 | static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate) |
| 1308 | { |
| 1309 | struct ath_rc_stats *stats; |
| 1310 | |
| 1311 | stats = &rc->rcstats[final_rate]; |
| 1312 | stats->success++; |
| 1313 | } |
| 1314 | |
| 1315 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1316 | static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, |
| 1317 | struct ieee80211_sta *sta, void *priv_sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1318 | struct sk_buff *skb) |
| 1319 | { |
| 1320 | struct ath_softc *sc = priv; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1321 | struct ath_rate_priv *ath_rc_priv = priv_sta; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1322 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); |
| 1323 | struct ieee80211_hdr *hdr; |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1324 | int final_ts_idx = 0, tx_status = 0, is_underrun = 0; |
| 1325 | int long_retry = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1326 | __le16 fc; |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1327 | int i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1328 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1329 | hdr = (struct ieee80211_hdr *)skb->data; |
| 1330 | fc = hdr->frame_control; |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1331 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { |
| 1332 | struct ieee80211_tx_rate *rate = &tx_info->status.rates[i]; |
| 1333 | if (!rate->count) |
| 1334 | break; |
| 1335 | |
| 1336 | final_ts_idx = i; |
| 1337 | long_retry = rate->count - 1; |
| 1338 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1339 | |
Felix Fietkau | d969847 | 2010-03-01 13:32:11 +0100 | [diff] [blame] | 1340 | if (!priv_sta || !ieee80211_is_data(fc)) |
| 1341 | return; |
| 1342 | |
| 1343 | /* This packet was aggregated but doesn't carry status info */ |
| 1344 | if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && |
| 1345 | !(tx_info->flags & IEEE80211_TX_STAT_AMPDU)) |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1346 | return; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1347 | |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1348 | if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) |
| 1349 | return; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1350 | |
Björn Smedman | a8909cf | 2010-10-10 22:51:54 +0200 | [diff] [blame] | 1351 | if (!(tx_info->flags & IEEE80211_TX_STAT_AMPDU)) { |
| 1352 | tx_info->status.ampdu_ack_len = |
| 1353 | (tx_info->flags & IEEE80211_TX_STAT_ACK ? 1 : 0); |
| 1354 | tx_info->status.ampdu_len = 1; |
| 1355 | } |
| 1356 | |
Felix Fietkau | 1d666d8 | 2010-11-11 03:18:34 +0100 | [diff] [blame] | 1357 | if (!(tx_info->flags & IEEE80211_TX_STAT_ACK)) |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1358 | tx_status = 1; |
| 1359 | |
| 1360 | ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status, |
Felix Fietkau | 827e69b | 2009-11-15 23:09:25 +0100 | [diff] [blame] | 1361 | (is_underrun) ? sc->hw->max_rate_tries : long_retry); |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1362 | |
Sujith | d22b002 | 2009-01-28 11:55:45 +0530 | [diff] [blame] | 1363 | /* Check if aggregation has to be enabled for this tid */ |
Vasanthakumar Thiagarajan | d5c232f | 2009-02-18 10:22:02 +0530 | [diff] [blame] | 1364 | if (conf_is_ht(&sc->hw->conf) && |
| 1365 | !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { |
Luis R. Rodriguez | c8b5760 | 2010-11-23 15:05:01 -0800 | [diff] [blame] | 1366 | if (ieee80211_is_data_qos(fc) && |
| 1367 | skb_get_queue_mapping(skb) != IEEE80211_AC_VO) { |
Sujith | d22b002 | 2009-01-28 11:55:45 +0530 | [diff] [blame] | 1368 | u8 *qc, tid; |
| 1369 | struct ath_node *an; |
| 1370 | |
| 1371 | qc = ieee80211_get_qos_ctl(hdr); |
| 1372 | tid = qc[0] & 0xf; |
| 1373 | an = (struct ath_node *)sta->drv_priv; |
| 1374 | |
| 1375 | if(ath_tx_aggr_check(sc, an, tid)) |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 1376 | ieee80211_start_tx_ba_session(sta, tid); |
Sujith | d22b002 | 2009-01-28 11:55:45 +0530 | [diff] [blame] | 1377 | } |
| 1378 | } |
Sujith | 7a7dec6 | 2009-01-30 14:32:09 +0530 | [diff] [blame] | 1379 | |
Felix Fietkau | 4e99001 | 2010-10-13 16:43:27 +0200 | [diff] [blame] | 1380 | ath_debug_stat_rc(ath_rc_priv, |
| 1381 | ath_rc_get_rateindex(ath_rc_priv->rate_table, |
| 1382 | &tx_info->status.rates[final_ts_idx])); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1383 | } |
| 1384 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1385 | static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, |
| 1386 | struct ieee80211_sta *sta, void *priv_sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1387 | { |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1388 | struct ath_softc *sc = priv; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1389 | struct ath_rate_priv *ath_rc_priv = priv_sta; |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 1390 | const struct ath_rate_table *rate_table; |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1391 | bool is_cw40, is_sgi = false; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1392 | int i, j = 0; |
| 1393 | |
Sujith | 7b4d273 | 2008-11-18 09:04:00 +0530 | [diff] [blame] | 1394 | for (i = 0; i < sband->n_bitrates; i++) { |
| 1395 | if (sta->supp_rates[sband->band] & BIT(i)) { |
| 1396 | ath_rc_priv->neg_rates.rs_rates[j] |
| 1397 | = (sband->bitrates[i].bitrate * 2) / 10; |
| 1398 | j++; |
| 1399 | } |
| 1400 | } |
| 1401 | ath_rc_priv->neg_rates.rs_nrates = j; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1402 | |
Sujith | a4510bf | 2008-10-23 12:15:19 +0530 | [diff] [blame] | 1403 | if (sta->ht_cap.ht_supported) { |
Sujith | 7b4d273 | 2008-11-18 09:04:00 +0530 | [diff] [blame] | 1404 | for (i = 0, j = 0; i < 77; i++) { |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1405 | if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8))) |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 1406 | ath_rc_priv->neg_ht_rates.rs_rates[j++] = i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1407 | if (j == ATH_RATE_MAX) |
| 1408 | break; |
| 1409 | } |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 1410 | ath_rc_priv->neg_ht_rates.rs_nrates = j; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1411 | } |
Sujith | 7b4d273 | 2008-11-18 09:04:00 +0530 | [diff] [blame] | 1412 | |
Mohammed Shafi Shajakhan | 5d4c428 | 2010-10-26 21:28:57 +0530 | [diff] [blame] | 1413 | is_cw40 = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1414 | |
| 1415 | if (is_cw40) |
Mohammed Shafi Shajakhan | 5d4c428 | 2010-10-26 21:28:57 +0530 | [diff] [blame] | 1416 | is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40); |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1417 | else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20) |
Mohammed Shafi Shajakhan | 5d4c428 | 2010-10-26 21:28:57 +0530 | [diff] [blame] | 1418 | is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1419 | |
| 1420 | /* Choose rate table first */ |
| 1421 | |
Felix Fietkau | 4e99001 | 2010-10-13 16:43:27 +0200 | [diff] [blame] | 1422 | rate_table = ath_choose_rate_table(sc, sband->band, |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 1423 | sta->ht_cap.ht_supported); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1424 | |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1425 | ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1426 | ath_rc_init(sc, priv_sta, sband, sta, rate_table); |
| 1427 | } |
| 1428 | |
| 1429 | static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, |
| 1430 | struct ieee80211_sta *sta, void *priv_sta, |
Sujith | 4fa0043 | 2010-03-01 14:42:57 +0530 | [diff] [blame] | 1431 | u32 changed, enum nl80211_channel_type oper_chan_type) |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1432 | { |
| 1433 | struct ath_softc *sc = priv; |
| 1434 | struct ath_rate_priv *ath_rc_priv = priv_sta; |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 1435 | const struct ath_rate_table *rate_table = NULL; |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1436 | bool oper_cw40 = false, oper_sgi; |
Mohammed Shafi Shajakhan | 5d4c428 | 2010-10-26 21:28:57 +0530 | [diff] [blame] | 1437 | bool local_cw40 = !!(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG); |
| 1438 | bool local_sgi = !!(ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1439 | |
| 1440 | /* FIXME: Handle AP mode later when we support CWM */ |
| 1441 | |
| 1442 | if (changed & IEEE80211_RC_HT_CHANGED) { |
| 1443 | if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION) |
| 1444 | return; |
| 1445 | |
Sujith | 4fa0043 | 2010-03-01 14:42:57 +0530 | [diff] [blame] | 1446 | if (oper_chan_type == NL80211_CHAN_HT40MINUS || |
| 1447 | oper_chan_type == NL80211_CHAN_HT40PLUS) |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1448 | oper_cw40 = true; |
| 1449 | |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1450 | if (oper_cw40) |
| 1451 | oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ? |
| 1452 | true : false; |
| 1453 | else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20) |
| 1454 | oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ? |
| 1455 | true : false; |
| 1456 | else |
| 1457 | oper_sgi = false; |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1458 | |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1459 | if ((local_cw40 != oper_cw40) || (local_sgi != oper_sgi)) { |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1460 | rate_table = ath_choose_rate_table(sc, sband->band, |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 1461 | sta->ht_cap.ht_supported); |
Sujith | c2da50e | 2009-03-13 08:56:11 +0530 | [diff] [blame] | 1462 | ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 1463 | oper_cw40, oper_sgi); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1464 | ath_rc_init(sc, priv_sta, sband, sta, rate_table); |
| 1465 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1466 | ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
| 1467 | "Operating HT Bandwidth changed to: %d\n", |
| 1468 | sc->hw->conf.channel_type); |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1469 | } |
| 1470 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1471 | } |
| 1472 | |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 1473 | #ifdef CONFIG_ATH9K_DEBUGFS |
| 1474 | |
| 1475 | static int ath9k_debugfs_open(struct inode *inode, struct file *file) |
| 1476 | { |
| 1477 | file->private_data = inode->i_private; |
| 1478 | return 0; |
| 1479 | } |
| 1480 | |
| 1481 | static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, |
| 1482 | size_t count, loff_t *ppos) |
| 1483 | { |
| 1484 | struct ath_rate_priv *rc = file->private_data; |
| 1485 | char *buf; |
| 1486 | unsigned int len = 0, max; |
| 1487 | int i = 0; |
| 1488 | ssize_t retval; |
| 1489 | |
| 1490 | if (rc->rate_table == NULL) |
| 1491 | return 0; |
| 1492 | |
| 1493 | max = 80 + rc->rate_table->rate_cnt * 1024 + 1; |
| 1494 | buf = kmalloc(max, GFP_KERNEL); |
| 1495 | if (buf == NULL) |
| 1496 | return -ENOMEM; |
| 1497 | |
| 1498 | len += sprintf(buf, "%6s %6s %6s " |
| 1499 | "%10s %10s %10s %10s\n", |
| 1500 | "HT", "MCS", "Rate", |
| 1501 | "Success", "Retries", "XRetries", "PER"); |
| 1502 | |
| 1503 | for (i = 0; i < rc->rate_table->rate_cnt; i++) { |
| 1504 | u32 ratekbps = rc->rate_table->info[i].ratekbps; |
| 1505 | struct ath_rc_stats *stats = &rc->rcstats[i]; |
| 1506 | char mcs[5]; |
| 1507 | char htmode[5]; |
| 1508 | int used_mcs = 0, used_htmode = 0; |
| 1509 | |
| 1510 | if (WLAN_RC_PHY_HT(rc->rate_table->info[i].phy)) { |
| 1511 | used_mcs = snprintf(mcs, 5, "%d", |
| 1512 | rc->rate_table->info[i].ratecode); |
| 1513 | |
| 1514 | if (WLAN_RC_PHY_40(rc->rate_table->info[i].phy)) |
| 1515 | used_htmode = snprintf(htmode, 5, "HT40"); |
| 1516 | else if (WLAN_RC_PHY_20(rc->rate_table->info[i].phy)) |
| 1517 | used_htmode = snprintf(htmode, 5, "HT20"); |
| 1518 | else |
| 1519 | used_htmode = snprintf(htmode, 5, "????"); |
| 1520 | } |
| 1521 | |
| 1522 | mcs[used_mcs] = '\0'; |
| 1523 | htmode[used_htmode] = '\0'; |
| 1524 | |
| 1525 | len += snprintf(buf + len, max - len, |
| 1526 | "%6s %6s %3u.%d: " |
| 1527 | "%10u %10u %10u %10u\n", |
| 1528 | htmode, |
| 1529 | mcs, |
| 1530 | ratekbps / 1000, |
| 1531 | (ratekbps % 1000) / 100, |
| 1532 | stats->success, |
| 1533 | stats->retries, |
| 1534 | stats->xretries, |
| 1535 | stats->per); |
| 1536 | } |
| 1537 | |
| 1538 | if (len > max) |
| 1539 | len = max; |
| 1540 | |
| 1541 | retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| 1542 | kfree(buf); |
| 1543 | return retval; |
| 1544 | } |
| 1545 | |
| 1546 | static const struct file_operations fops_rcstat = { |
| 1547 | .read = read_file_rcstat, |
| 1548 | .open = ath9k_debugfs_open, |
| 1549 | .owner = THIS_MODULE |
| 1550 | }; |
| 1551 | |
| 1552 | static void ath_rate_add_sta_debugfs(void *priv, void *priv_sta, |
| 1553 | struct dentry *dir) |
| 1554 | { |
| 1555 | struct ath_rate_priv *rc = priv_sta; |
| 1556 | debugfs_create_file("rc_stats", S_IRUGO, dir, rc, &fops_rcstat); |
| 1557 | } |
| 1558 | |
| 1559 | #endif /* CONFIG_ATH9K_DEBUGFS */ |
| 1560 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1561 | static void *ath_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1562 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1563 | struct ath_wiphy *aphy = hw->priv; |
| 1564 | return aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1565 | } |
| 1566 | |
| 1567 | static void ath_rate_free(void *priv) |
| 1568 | { |
| 1569 | return; |
| 1570 | } |
| 1571 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1572 | static void *ath_rate_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1573 | { |
| 1574 | struct ath_softc *sc = priv; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1575 | struct ath_rate_priv *rate_priv; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1576 | |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1577 | rate_priv = kzalloc(sizeof(struct ath_rate_priv), gfp); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1578 | if (!rate_priv) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1579 | ath_err(ath9k_hw_common(sc->sc_ah), |
| 1580 | "Unable to allocate private rc structure\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1581 | return NULL; |
| 1582 | } |
Sujith | fe60594 | 2008-11-18 09:03:36 +0530 | [diff] [blame] | 1583 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1584 | return rate_priv; |
| 1585 | } |
| 1586 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1587 | static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta, |
| 1588 | void *priv_sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1589 | { |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 1590 | struct ath_rate_priv *rate_priv = priv_sta; |
Sujith | fe60594 | 2008-11-18 09:03:36 +0530 | [diff] [blame] | 1591 | kfree(rate_priv); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | static struct rate_control_ops ath_rate_ops = { |
| 1595 | .module = NULL, |
| 1596 | .name = "ath9k_rate_control", |
| 1597 | .tx_status = ath_tx_status, |
| 1598 | .get_rate = ath_get_rate, |
| 1599 | .rate_init = ath_rate_init, |
Sujith | 9331ec8 | 2009-03-02 13:29:45 +0530 | [diff] [blame] | 1600 | .rate_update = ath_rate_update, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1601 | .alloc = ath_rate_alloc, |
| 1602 | .free = ath_rate_free, |
| 1603 | .alloc_sta = ath_rate_alloc_sta, |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 1604 | .free_sta = ath_rate_free_sta, |
Felix Fietkau | 772d551 | 2010-10-13 16:43:26 +0200 | [diff] [blame] | 1605 | #ifdef CONFIG_ATH9K_DEBUGFS |
| 1606 | .add_sta_debugfs = ath_rate_add_sta_debugfs, |
| 1607 | #endif |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1608 | }; |
| 1609 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1610 | int ath_rate_control_register(void) |
| 1611 | { |
| 1612 | return ieee80211_rate_control_register(&ath_rate_ops); |
| 1613 | } |
| 1614 | |
| 1615 | void ath_rate_control_unregister(void) |
| 1616 | { |
| 1617 | ieee80211_rate_control_unregister(&ath_rate_ops); |
| 1618 | } |