18e84c258SEugene Krasnikov /* 28e84c258SEugene Krasnikov * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> 38e84c258SEugene Krasnikov * 48e84c258SEugene Krasnikov * Permission to use, copy, modify, and/or distribute this software for any 58e84c258SEugene Krasnikov * purpose with or without fee is hereby granted, provided that the above 68e84c258SEugene Krasnikov * copyright notice and this permission notice appear in all copies. 78e84c258SEugene Krasnikov * 88e84c258SEugene Krasnikov * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 98e84c258SEugene Krasnikov * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 108e84c258SEugene Krasnikov * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 118e84c258SEugene Krasnikov * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 128e84c258SEugene Krasnikov * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 138e84c258SEugene Krasnikov * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 148e84c258SEugene Krasnikov * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 158e84c258SEugene Krasnikov */ 168e84c258SEugene Krasnikov 178e84c258SEugene Krasnikov #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 188e84c258SEugene Krasnikov 19e1a6b5d3SBryan O'Donoghue #include <linux/random.h> 208e84c258SEugene Krasnikov #include "txrx.h" 218e84c258SEugene Krasnikov 228e84c258SEugene Krasnikov static inline int get_rssi0(struct wcn36xx_rx_bd *bd) 238e84c258SEugene Krasnikov { 248e84c258SEugene Krasnikov return 100 - ((bd->phy_stat0 >> 24) & 0xff); 258e84c258SEugene Krasnikov } 268e84c258SEugene Krasnikov 27039d5d4dSBryan O'Donoghue static inline int get_snr(struct wcn36xx_rx_bd *bd) 28039d5d4dSBryan O'Donoghue { 29039d5d4dSBryan O'Donoghue return ((bd->phy_stat1 >> 24) & 0xff); 30039d5d4dSBryan O'Donoghue } 31039d5d4dSBryan O'Donoghue 320aa90483SLoic Poulain struct wcn36xx_rate { 330aa90483SLoic Poulain u16 bitrate; 340aa90483SLoic Poulain u16 mcs_or_legacy_index; 350aa90483SLoic Poulain enum mac80211_rx_encoding encoding; 360aa90483SLoic Poulain enum mac80211_rx_encoding_flags encoding_flags; 370aa90483SLoic Poulain enum rate_info_bw bw; 380aa90483SLoic Poulain }; 390aa90483SLoic Poulain 408a27ca39SLoic Poulain /* Buffer descriptor rx_ch field is limited to 5-bit (4+1), a mapping is used 418a27ca39SLoic Poulain * for 11A Channels. 428a27ca39SLoic Poulain */ 438a27ca39SLoic Poulain static const u8 ab_rx_ch_map[] = { 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 448a27ca39SLoic Poulain 108, 112, 116, 120, 124, 128, 132, 136, 140, 458a27ca39SLoic Poulain 149, 153, 157, 161, 165, 144 }; 468a27ca39SLoic Poulain 470aa90483SLoic Poulain static const struct wcn36xx_rate wcn36xx_rate_table[] = { 480aa90483SLoic Poulain /* 11b rates */ 490aa90483SLoic Poulain { 10, 0, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 500aa90483SLoic Poulain { 20, 1, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 510aa90483SLoic Poulain { 55, 2, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 520aa90483SLoic Poulain { 110, 3, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 530aa90483SLoic Poulain 540aa90483SLoic Poulain /* 11b SP (short preamble) */ 550aa90483SLoic Poulain { 10, 0, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, 560aa90483SLoic Poulain { 20, 1, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, 570aa90483SLoic Poulain { 55, 2, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, 580aa90483SLoic Poulain { 110, 3, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, 590aa90483SLoic Poulain 600aa90483SLoic Poulain /* 11ag */ 610aa90483SLoic Poulain { 60, 4, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 620aa90483SLoic Poulain { 90, 5, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 630aa90483SLoic Poulain { 120, 6, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 640aa90483SLoic Poulain { 180, 7, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 650aa90483SLoic Poulain { 240, 8, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 660aa90483SLoic Poulain { 360, 9, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 670aa90483SLoic Poulain { 480, 10, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 680aa90483SLoic Poulain { 540, 11, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, 690aa90483SLoic Poulain 700aa90483SLoic Poulain /* 11n */ 710aa90483SLoic Poulain { 65, 0, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 720aa90483SLoic Poulain { 130, 1, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 730aa90483SLoic Poulain { 195, 2, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 740aa90483SLoic Poulain { 260, 3, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 750aa90483SLoic Poulain { 390, 4, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 760aa90483SLoic Poulain { 520, 5, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 770aa90483SLoic Poulain { 585, 6, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 780aa90483SLoic Poulain { 650, 7, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 790aa90483SLoic Poulain 800aa90483SLoic Poulain /* 11n SGI */ 810aa90483SLoic Poulain { 72, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 820aa90483SLoic Poulain { 144, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 830aa90483SLoic Poulain { 217, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 840aa90483SLoic Poulain { 289, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 850aa90483SLoic Poulain { 434, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 860aa90483SLoic Poulain { 578, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 870aa90483SLoic Poulain { 650, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 880aa90483SLoic Poulain { 722, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 890aa90483SLoic Poulain 900aa90483SLoic Poulain /* 11n GF (greenfield) */ 910aa90483SLoic Poulain { 65, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 920aa90483SLoic Poulain { 130, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 930aa90483SLoic Poulain { 195, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 940aa90483SLoic Poulain { 260, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 950aa90483SLoic Poulain { 390, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 960aa90483SLoic Poulain { 520, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 970aa90483SLoic Poulain { 585, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 980aa90483SLoic Poulain { 650, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, 990aa90483SLoic Poulain 1000aa90483SLoic Poulain /* 11n CB (channel bonding) */ 1010aa90483SLoic Poulain { 135, 0, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1020aa90483SLoic Poulain { 270, 1, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1030aa90483SLoic Poulain { 405, 2, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1040aa90483SLoic Poulain { 540, 3, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1050aa90483SLoic Poulain { 810, 4, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1060aa90483SLoic Poulain { 1080, 5, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1070aa90483SLoic Poulain { 1215, 6, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1080aa90483SLoic Poulain { 1350, 7, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 1090aa90483SLoic Poulain 1100aa90483SLoic Poulain /* 11n CB + SGI */ 1110aa90483SLoic Poulain { 150, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1120aa90483SLoic Poulain { 300, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1130aa90483SLoic Poulain { 450, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1140aa90483SLoic Poulain { 600, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1150aa90483SLoic Poulain { 900, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1160aa90483SLoic Poulain { 1200, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1170aa90483SLoic Poulain { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1180aa90483SLoic Poulain { 1500, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 1190aa90483SLoic Poulain 1200aa90483SLoic Poulain /* 11n GF + CB */ 1210aa90483SLoic Poulain { 135, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1220aa90483SLoic Poulain { 270, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1230aa90483SLoic Poulain { 405, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1240aa90483SLoic Poulain { 540, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1250aa90483SLoic Poulain { 810, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1260aa90483SLoic Poulain { 1080, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1270aa90483SLoic Poulain { 1215, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1280aa90483SLoic Poulain { 1350, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, 1290aa90483SLoic Poulain 13010630b15SBryan O'Donoghue /* 11ac reserved indices */ 13110630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 13210630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 13310630b15SBryan O'Donoghue 13410630b15SBryan O'Donoghue /* 11ac 20 MHz 800ns GI MCS 0-8 */ 13510630b15SBryan O'Donoghue { 65, 0, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 13610630b15SBryan O'Donoghue { 130, 1, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 13710630b15SBryan O'Donoghue { 195, 2, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 13810630b15SBryan O'Donoghue { 260, 3, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 13910630b15SBryan O'Donoghue { 390, 4, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 14010630b15SBryan O'Donoghue { 520, 5, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 14110630b15SBryan O'Donoghue { 585, 6, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 14210630b15SBryan O'Donoghue { 650, 7, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 14310630b15SBryan O'Donoghue { 780, 8, RX_ENC_HT, 0, RATE_INFO_BW_20 }, 14410630b15SBryan O'Donoghue 14510630b15SBryan O'Donoghue /* 11ac reserved indices */ 14610630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 14710630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 14810630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 14910630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15010630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15110630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15210630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15410630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 15510630b15SBryan O'Donoghue 15610630b15SBryan O'Donoghue /* 11ac 20 MHz 400ns SGI MCS 6-8 */ 15710630b15SBryan O'Donoghue { 655, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 15810630b15SBryan O'Donoghue { 722, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 15910630b15SBryan O'Donoghue { 866, 8, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, 16010630b15SBryan O'Donoghue 16110630b15SBryan O'Donoghue /* 11ac reserved indices */ 16210630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 16310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 16410630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 16510630b15SBryan O'Donoghue 16610630b15SBryan O'Donoghue /* 11ac 40 MHz 800ns GI MCS 0-9 */ 16710630b15SBryan O'Donoghue { 135, 0, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 16810630b15SBryan O'Donoghue { 270, 1, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 16910630b15SBryan O'Donoghue { 405, 2, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17010630b15SBryan O'Donoghue { 540, 3, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17110630b15SBryan O'Donoghue { 810, 4, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17210630b15SBryan O'Donoghue { 1080, 5, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17310630b15SBryan O'Donoghue { 1215, 6, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17410630b15SBryan O'Donoghue { 1350, 7, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17510630b15SBryan O'Donoghue { 1350, 7, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17610630b15SBryan O'Donoghue { 1620, 8, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17710630b15SBryan O'Donoghue { 1800, 9, RX_ENC_HT, 0, RATE_INFO_BW_40 }, 17810630b15SBryan O'Donoghue 17910630b15SBryan O'Donoghue /* 11ac reserved indices */ 18010630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18110630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18210630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18410630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18510630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18610630b15SBryan O'Donoghue 18710630b15SBryan O'Donoghue /* 11ac 40 MHz 400ns SGI MCS 5-7 */ 18810630b15SBryan O'Donoghue { 1200, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 18910630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 19010630b15SBryan O'Donoghue { 1500, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 19110630b15SBryan O'Donoghue 19210630b15SBryan O'Donoghue /* 11ac reserved index */ 19310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 19410630b15SBryan O'Donoghue 19510630b15SBryan O'Donoghue /* 11ac 40 MHz 400ns SGI MCS 5-7 */ 19610630b15SBryan O'Donoghue { 1800, 8, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 19710630b15SBryan O'Donoghue { 2000, 9, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 19810630b15SBryan O'Donoghue 19910630b15SBryan O'Donoghue /* 11ac reserved index */ 20010630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 20110630b15SBryan O'Donoghue 20210630b15SBryan O'Donoghue /* 11ac 80 MHz 800ns GI MCS 0-7 */ 20310630b15SBryan O'Donoghue { 292, 0, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20410630b15SBryan O'Donoghue { 585, 1, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20510630b15SBryan O'Donoghue { 877, 2, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20610630b15SBryan O'Donoghue { 1170, 3, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20710630b15SBryan O'Donoghue { 1755, 4, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20810630b15SBryan O'Donoghue { 2340, 5, RX_ENC_HT, 0, RATE_INFO_BW_80}, 20910630b15SBryan O'Donoghue { 2632, 6, RX_ENC_HT, 0, RATE_INFO_BW_80}, 21010630b15SBryan O'Donoghue { 2925, 7, RX_ENC_HT, 0, RATE_INFO_BW_80}, 21110630b15SBryan O'Donoghue 21210630b15SBryan O'Donoghue /* 11 ac reserved index */ 21310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 21410630b15SBryan O'Donoghue 21510630b15SBryan O'Donoghue /* 11ac 80 MHz 800 ns GI MCS 8-9 */ 21610630b15SBryan O'Donoghue { 3510, 8, RX_ENC_HT, 0, RATE_INFO_BW_80}, 21710630b15SBryan O'Donoghue { 3900, 9, RX_ENC_HT, 0, RATE_INFO_BW_80}, 21810630b15SBryan O'Donoghue 21910630b15SBryan O'Donoghue /* 11 ac reserved indices */ 22010630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22110630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22210630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22410630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22510630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22610630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 22710630b15SBryan O'Donoghue 22810630b15SBryan O'Donoghue /* 11ac 80 MHz 400 ns SGI MCS 6-7 */ 22910630b15SBryan O'Donoghue { 2925, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_80 }, 23010630b15SBryan O'Donoghue { 3250, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_80 }, 23110630b15SBryan O'Donoghue 23210630b15SBryan O'Donoghue /* 11ac reserved index */ 23310630b15SBryan O'Donoghue { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, 23410630b15SBryan O'Donoghue 23510630b15SBryan O'Donoghue /* 11ac 80 MHz 400ns SGI MCS 8-9 */ 23610630b15SBryan O'Donoghue { 3900, 8, RX_ENC_VHT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_80 }, 23710630b15SBryan O'Donoghue { 4333, 9, RX_ENC_VHT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_80 }, 2380aa90483SLoic Poulain }; 2390aa90483SLoic Poulain 240a224b47aSLoic Poulain static struct sk_buff *wcn36xx_unchain_msdu(struct sk_buff_head *amsdu) 241a224b47aSLoic Poulain { 242a224b47aSLoic Poulain struct sk_buff *skb, *first; 243a224b47aSLoic Poulain int total_len = 0; 244a224b47aSLoic Poulain int space; 245a224b47aSLoic Poulain 246a224b47aSLoic Poulain first = __skb_dequeue(amsdu); 247a224b47aSLoic Poulain 248a224b47aSLoic Poulain skb_queue_walk(amsdu, skb) 249a224b47aSLoic Poulain total_len += skb->len; 250a224b47aSLoic Poulain 251a224b47aSLoic Poulain space = total_len - skb_tailroom(first); 252a224b47aSLoic Poulain if (space > 0 && pskb_expand_head(first, 0, space, GFP_ATOMIC) < 0) { 253a224b47aSLoic Poulain __skb_queue_head(amsdu, first); 254a224b47aSLoic Poulain return NULL; 255a224b47aSLoic Poulain } 256a224b47aSLoic Poulain 257a224b47aSLoic Poulain /* Walk list again, copying contents into msdu_head */ 258a224b47aSLoic Poulain while ((skb = __skb_dequeue(amsdu))) { 259a224b47aSLoic Poulain skb_copy_from_linear_data(skb, skb_put(first, skb->len), 260a224b47aSLoic Poulain skb->len); 261a224b47aSLoic Poulain dev_kfree_skb_irq(skb); 262a224b47aSLoic Poulain } 263a224b47aSLoic Poulain 264a224b47aSLoic Poulain return first; 265a224b47aSLoic Poulain } 266a224b47aSLoic Poulain 267a224b47aSLoic Poulain static void __skb_queue_purge_irq(struct sk_buff_head *list) 268a224b47aSLoic Poulain { 269a224b47aSLoic Poulain struct sk_buff *skb; 270a224b47aSLoic Poulain 271a224b47aSLoic Poulain while ((skb = __skb_dequeue(list)) != NULL) 272a224b47aSLoic Poulain dev_kfree_skb_irq(skb); 273a224b47aSLoic Poulain } 274a224b47aSLoic Poulain 27529696e0aSBryan O'Donoghue static void wcn36xx_update_survey(struct wcn36xx *wcn, int rssi, int snr, 27629696e0aSBryan O'Donoghue int band, int freq) 27729696e0aSBryan O'Donoghue { 27829696e0aSBryan O'Donoghue static struct ieee80211_channel *channel; 27929696e0aSBryan O'Donoghue struct ieee80211_supported_band *sband; 28029696e0aSBryan O'Donoghue int idx; 28129696e0aSBryan O'Donoghue int i; 282e1a6b5d3SBryan O'Donoghue u8 snr_sample = snr & 0xff; 28329696e0aSBryan O'Donoghue 28429696e0aSBryan O'Donoghue idx = 0; 28529696e0aSBryan O'Donoghue if (band == NL80211_BAND_5GHZ) 28629696e0aSBryan O'Donoghue idx = wcn->hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 28729696e0aSBryan O'Donoghue 28829696e0aSBryan O'Donoghue sband = wcn->hw->wiphy->bands[band]; 28929696e0aSBryan O'Donoghue channel = sband->channels; 29029696e0aSBryan O'Donoghue 29129696e0aSBryan O'Donoghue for (i = 0; i < sband->n_channels; i++, channel++) { 29229696e0aSBryan O'Donoghue if (channel->center_freq == freq) { 29329696e0aSBryan O'Donoghue idx += i; 29429696e0aSBryan O'Donoghue break; 29529696e0aSBryan O'Donoghue } 29629696e0aSBryan O'Donoghue } 29729696e0aSBryan O'Donoghue 29829696e0aSBryan O'Donoghue spin_lock(&wcn->survey_lock); 29929696e0aSBryan O'Donoghue wcn->chan_survey[idx].rssi = rssi; 30029696e0aSBryan O'Donoghue wcn->chan_survey[idx].snr = snr; 30129696e0aSBryan O'Donoghue spin_unlock(&wcn->survey_lock); 302e1a6b5d3SBryan O'Donoghue 303e1a6b5d3SBryan O'Donoghue add_device_randomness(&snr_sample, sizeof(snr_sample)); 30429696e0aSBryan O'Donoghue } 30529696e0aSBryan O'Donoghue 3068e84c258SEugene Krasnikov int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) 3078e84c258SEugene Krasnikov { 3088e84c258SEugene Krasnikov struct ieee80211_rx_status status; 3090aa90483SLoic Poulain const struct wcn36xx_rate *rate; 3108e84c258SEugene Krasnikov struct ieee80211_hdr *hdr; 3118e84c258SEugene Krasnikov struct wcn36xx_rx_bd *bd; 3128e84c258SEugene Krasnikov u16 fc, sn; 3138e84c258SEugene Krasnikov 3148e84c258SEugene Krasnikov /* 3158e84c258SEugene Krasnikov * All fields must be 0, otherwise it can lead to 3168e84c258SEugene Krasnikov * unexpected consequences. 3178e84c258SEugene Krasnikov */ 3188e84c258SEugene Krasnikov memset(&status, 0, sizeof(status)); 3198e84c258SEugene Krasnikov 3208e84c258SEugene Krasnikov bd = (struct wcn36xx_rx_bd *)skb->data; 321*fba52950SKalle Valo buff_to_be(bd, sizeof(*bd)/sizeof(u32)); 3228e84c258SEugene Krasnikov wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP, 3238e84c258SEugene Krasnikov "BD <<< ", (char *)bd, 3248e84c258SEugene Krasnikov sizeof(struct wcn36xx_rx_bd)); 3258e84c258SEugene Krasnikov 326a224b47aSLoic Poulain if (bd->pdu.mpdu_data_off <= bd->pdu.mpdu_header_off || 327a224b47aSLoic Poulain bd->pdu.mpdu_len < bd->pdu.mpdu_header_len) 328a224b47aSLoic Poulain goto drop; 329a224b47aSLoic Poulain 330a224b47aSLoic Poulain if (bd->asf && !bd->esf) { /* chained A-MSDU chunks */ 331a224b47aSLoic Poulain /* Sanity check */ 332a224b47aSLoic Poulain if (bd->pdu.mpdu_data_off + bd->pdu.mpdu_len > WCN36XX_PKT_SIZE) 333a224b47aSLoic Poulain goto drop; 334a224b47aSLoic Poulain 335a224b47aSLoic Poulain skb_put(skb, bd->pdu.mpdu_data_off + bd->pdu.mpdu_len); 336a224b47aSLoic Poulain skb_pull(skb, bd->pdu.mpdu_data_off); 337a224b47aSLoic Poulain 338a224b47aSLoic Poulain /* Only set status for first chained BD (with mac header) */ 339a224b47aSLoic Poulain goto done; 340a224b47aSLoic Poulain } 341a224b47aSLoic Poulain 342a224b47aSLoic Poulain if (bd->pdu.mpdu_header_off < sizeof(*bd) || 343a224b47aSLoic Poulain bd->pdu.mpdu_header_off + bd->pdu.mpdu_len > WCN36XX_PKT_SIZE) 344a224b47aSLoic Poulain goto drop; 345a224b47aSLoic Poulain 3468e84c258SEugene Krasnikov skb_put(skb, bd->pdu.mpdu_header_off + bd->pdu.mpdu_len); 3478e84c258SEugene Krasnikov skb_pull(skb, bd->pdu.mpdu_header_off); 3488e84c258SEugene Krasnikov 34988603903SBjorn Andersson hdr = (struct ieee80211_hdr *) skb->data; 35088603903SBjorn Andersson fc = __le16_to_cpu(hdr->frame_control); 35188603903SBjorn Andersson sn = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)); 35288603903SBjorn Andersson 35388603903SBjorn Andersson status.mactime = 10; 3548e84c258SEugene Krasnikov status.signal = -get_rssi0(bd); 3558e84c258SEugene Krasnikov status.antenna = 1; 3568e84c258SEugene Krasnikov status.flag = 0; 3578e84c258SEugene Krasnikov status.rx_flags = 0; 3588e84c258SEugene Krasnikov status.flag |= RX_FLAG_IV_STRIPPED | 3598e84c258SEugene Krasnikov RX_FLAG_MMIC_STRIPPED | 3608e84c258SEugene Krasnikov RX_FLAG_DECRYPTED; 3618e84c258SEugene Krasnikov 3627fdd69c5SJohannes Berg wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x\n", status.flag); 3638e84c258SEugene Krasnikov 364c9c5608fSBenjamin Li if (bd->scan_learn) { 365c9c5608fSBenjamin Li /* If packet originate from hardware scanning, extract the 366c9c5608fSBenjamin Li * band/channel from bd descriptor. 367c9c5608fSBenjamin Li */ 368c9c5608fSBenjamin Li u8 hwch = (bd->reserved0 << 4) + bd->rx_ch; 369c9c5608fSBenjamin Li 370c9c5608fSBenjamin Li if (bd->rf_band != 1 && hwch <= sizeof(ab_rx_ch_map) && hwch >= 1) { 371c9c5608fSBenjamin Li status.band = NL80211_BAND_5GHZ; 372c9c5608fSBenjamin Li status.freq = ieee80211_channel_to_frequency(ab_rx_ch_map[hwch - 1], 373c9c5608fSBenjamin Li status.band); 374c9c5608fSBenjamin Li } else { 375c9c5608fSBenjamin Li status.band = NL80211_BAND_2GHZ; 376c9c5608fSBenjamin Li status.freq = ieee80211_channel_to_frequency(hwch, status.band); 377c9c5608fSBenjamin Li } 378c9c5608fSBenjamin Li } else { 379c9c5608fSBenjamin Li status.band = WCN36XX_BAND(wcn); 380c9c5608fSBenjamin Li status.freq = WCN36XX_CENTER_FREQ(wcn); 381c9c5608fSBenjamin Li } 382c9c5608fSBenjamin Li 38329696e0aSBryan O'Donoghue wcn36xx_update_survey(wcn, status.signal, get_snr(bd), 38429696e0aSBryan O'Donoghue status.band, status.freq); 38529696e0aSBryan O'Donoghue 3860aa90483SLoic Poulain if (bd->rate_id < ARRAY_SIZE(wcn36xx_rate_table)) { 3870aa90483SLoic Poulain rate = &wcn36xx_rate_table[bd->rate_id]; 3880aa90483SLoic Poulain status.encoding = rate->encoding; 3890aa90483SLoic Poulain status.enc_flags = rate->encoding_flags; 3900aa90483SLoic Poulain status.bw = rate->bw; 3910aa90483SLoic Poulain status.rate_idx = rate->mcs_or_legacy_index; 3921af05d43SBryan O'Donoghue status.nss = 1; 3936ea131acSLoic Poulain 3946ea131acSLoic Poulain if (status.band == NL80211_BAND_5GHZ && 3956ea131acSLoic Poulain status.encoding == RX_ENC_LEGACY && 396cfdf6b19SBenjamin Li status.rate_idx >= 4) { 3976ea131acSLoic Poulain /* no dsss rates in 5Ghz rates table */ 3986ea131acSLoic Poulain status.rate_idx -= 4; 3996ea131acSLoic Poulain } 4000aa90483SLoic Poulain } else { 4010aa90483SLoic Poulain status.encoding = 0; 4020aa90483SLoic Poulain status.bw = 0; 4030aa90483SLoic Poulain status.enc_flags = 0; 4040aa90483SLoic Poulain status.rate_idx = 0; 4050aa90483SLoic Poulain } 4060aa90483SLoic Poulain 4078678fd31SLoic Poulain if (ieee80211_is_beacon(hdr->frame_control) || 4088678fd31SLoic Poulain ieee80211_is_probe_resp(hdr->frame_control)) 4098678fd31SLoic Poulain status.boottime_ns = ktime_get_boottime_ns(); 4108678fd31SLoic Poulain 4118e84c258SEugene Krasnikov memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); 4128e84c258SEugene Krasnikov 4138e84c258SEugene Krasnikov if (ieee80211_is_beacon(hdr->frame_control)) { 4148e84c258SEugene Krasnikov wcn36xx_dbg(WCN36XX_DBG_BEACON, "beacon skb %p len %d fc %04x sn %d\n", 4158e84c258SEugene Krasnikov skb, skb->len, fc, sn); 4168e84c258SEugene Krasnikov wcn36xx_dbg_dump(WCN36XX_DBG_BEACON_DUMP, "SKB <<< ", 4178e84c258SEugene Krasnikov (char *)skb->data, skb->len); 4188e84c258SEugene Krasnikov } else { 4198e84c258SEugene Krasnikov wcn36xx_dbg(WCN36XX_DBG_RX, "rx skb %p len %d fc %04x sn %d\n", 4208e84c258SEugene Krasnikov skb, skb->len, fc, sn); 4218e84c258SEugene Krasnikov wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP, "SKB <<< ", 4228e84c258SEugene Krasnikov (char *)skb->data, skb->len); 4238e84c258SEugene Krasnikov } 4248e84c258SEugene Krasnikov 425a224b47aSLoic Poulain done: 426a224b47aSLoic Poulain /* Chained AMSDU ? slow path */ 427a224b47aSLoic Poulain if (unlikely(bd->asf && !(bd->lsf && bd->esf))) { 428a224b47aSLoic Poulain if (bd->esf && !skb_queue_empty(&wcn->amsdu)) { 429a224b47aSLoic Poulain wcn36xx_err("Discarding non complete chain"); 430a224b47aSLoic Poulain __skb_queue_purge_irq(&wcn->amsdu); 431a224b47aSLoic Poulain } 432a224b47aSLoic Poulain 433a224b47aSLoic Poulain __skb_queue_tail(&wcn->amsdu, skb); 434a224b47aSLoic Poulain 435a224b47aSLoic Poulain if (!bd->lsf) 436a224b47aSLoic Poulain return 0; /* Not the last AMSDU, wait for more */ 437a224b47aSLoic Poulain 438a224b47aSLoic Poulain skb = wcn36xx_unchain_msdu(&wcn->amsdu); 439a224b47aSLoic Poulain if (!skb) 440a224b47aSLoic Poulain goto drop; 441a224b47aSLoic Poulain } 442a224b47aSLoic Poulain 4438e84c258SEugene Krasnikov ieee80211_rx_irqsafe(wcn->hw, skb); 4448e84c258SEugene Krasnikov 4458e84c258SEugene Krasnikov return 0; 446a224b47aSLoic Poulain 447a224b47aSLoic Poulain drop: /* drop everything */ 448a224b47aSLoic Poulain wcn36xx_err("Drop frame! skb:%p len:%u hoff:%u doff:%u asf=%u esf=%u lsf=%u\n", 449a224b47aSLoic Poulain skb, bd->pdu.mpdu_len, bd->pdu.mpdu_header_off, 450a224b47aSLoic Poulain bd->pdu.mpdu_data_off, bd->asf, bd->esf, bd->lsf); 451a224b47aSLoic Poulain 452a224b47aSLoic Poulain dev_kfree_skb_irq(skb); 453a224b47aSLoic Poulain __skb_queue_purge_irq(&wcn->amsdu); 454a224b47aSLoic Poulain 455a224b47aSLoic Poulain return -EINVAL; 4568e84c258SEugene Krasnikov } 4578e84c258SEugene Krasnikov 4588e84c258SEugene Krasnikov static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd, 4598e84c258SEugene Krasnikov u32 mpdu_header_len, 4608e84c258SEugene Krasnikov u32 len, 4618e84c258SEugene Krasnikov u16 tid) 4628e84c258SEugene Krasnikov { 4638e84c258SEugene Krasnikov bd->pdu.mpdu_header_len = mpdu_header_len; 4648e84c258SEugene Krasnikov bd->pdu.mpdu_header_off = sizeof(*bd); 4658e84c258SEugene Krasnikov bd->pdu.mpdu_data_off = bd->pdu.mpdu_header_len + 4668e84c258SEugene Krasnikov bd->pdu.mpdu_header_off; 4678e84c258SEugene Krasnikov bd->pdu.mpdu_len = len; 4688e84c258SEugene Krasnikov bd->pdu.tid = tid; 4698e84c258SEugene Krasnikov } 4708e84c258SEugene Krasnikov 4718e84c258SEugene Krasnikov static inline struct wcn36xx_vif *get_vif_by_addr(struct wcn36xx *wcn, 4728e84c258SEugene Krasnikov u8 *addr) 4738e84c258SEugene Krasnikov { 4748e84c258SEugene Krasnikov struct wcn36xx_vif *vif_priv = NULL; 4758e84c258SEugene Krasnikov struct ieee80211_vif *vif = NULL; 4768e84c258SEugene Krasnikov list_for_each_entry(vif_priv, &wcn->vif_list, list) { 477ce75877fSPontus Fuchs vif = wcn36xx_priv_to_vif(vif_priv); 4788e84c258SEugene Krasnikov if (memcmp(vif->addr, addr, ETH_ALEN) == 0) 4798e84c258SEugene Krasnikov return vif_priv; 4808e84c258SEugene Krasnikov } 4818e84c258SEugene Krasnikov wcn36xx_warn("vif %pM not found\n", addr); 4828e84c258SEugene Krasnikov return NULL; 4838e84c258SEugene Krasnikov } 484e26dc173SBob Copeland 485e26dc173SBob Copeland static void wcn36xx_tx_start_ampdu(struct wcn36xx *wcn, 486e26dc173SBob Copeland struct wcn36xx_sta *sta_priv, 487e26dc173SBob Copeland struct sk_buff *skb) 488e26dc173SBob Copeland { 489e26dc173SBob Copeland struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 490e26dc173SBob Copeland struct ieee80211_sta *sta; 491e26dc173SBob Copeland u8 *qc, tid; 492e26dc173SBob Copeland 493e26dc173SBob Copeland if (!conf_is_ht(&wcn->hw->conf)) 494e26dc173SBob Copeland return; 495e26dc173SBob Copeland 496e26dc173SBob Copeland sta = wcn36xx_priv_to_sta(sta_priv); 497e26dc173SBob Copeland 498e26dc173SBob Copeland if (WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) 499e26dc173SBob Copeland return; 500e26dc173SBob Copeland 501e26dc173SBob Copeland if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO) 502e26dc173SBob Copeland return; 503e26dc173SBob Copeland 504e26dc173SBob Copeland qc = ieee80211_get_qos_ctl(hdr); 505e26dc173SBob Copeland tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; 506e26dc173SBob Copeland 507e26dc173SBob Copeland spin_lock(&sta_priv->ampdu_lock); 508e26dc173SBob Copeland if (sta_priv->ampdu_state[tid] != WCN36XX_AMPDU_NONE) 509e26dc173SBob Copeland goto out_unlock; 510e26dc173SBob Copeland 511e26dc173SBob Copeland if (sta_priv->non_agg_frame_ct++ >= WCN36XX_AMPDU_START_THRESH) { 512e26dc173SBob Copeland sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 513e26dc173SBob Copeland sta_priv->non_agg_frame_ct = 0; 514e26dc173SBob Copeland ieee80211_start_tx_ba_session(sta, tid, 0); 515e26dc173SBob Copeland } 516e26dc173SBob Copeland out_unlock: 517e26dc173SBob Copeland spin_unlock(&sta_priv->ampdu_lock); 518e26dc173SBob Copeland } 519e26dc173SBob Copeland 5208e84c258SEugene Krasnikov static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd, 5218e84c258SEugene Krasnikov struct wcn36xx *wcn, 5228e84c258SEugene Krasnikov struct wcn36xx_vif **vif_priv, 5238e84c258SEugene Krasnikov struct wcn36xx_sta *sta_priv, 5245f3f9285SBob Copeland struct sk_buff *skb, 5258e84c258SEugene Krasnikov bool bcast) 5268e84c258SEugene Krasnikov { 5275f3f9285SBob Copeland struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 528512b191dSLoic Poulain struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 5298e84c258SEugene Krasnikov struct ieee80211_vif *vif = NULL; 5308e84c258SEugene Krasnikov struct wcn36xx_vif *__vif_priv = NULL; 531512b191dSLoic Poulain bool is_data_qos = ieee80211_is_data_qos(hdr->frame_control); 532512b191dSLoic Poulain u16 tid = 0; 533e26dc173SBob Copeland 5348e84c258SEugene Krasnikov bd->bd_rate = WCN36XX_BD_RATE_DATA; 5358e84c258SEugene Krasnikov 5368e84c258SEugene Krasnikov /* 5378e84c258SEugene Krasnikov * For not unicast frames mac80211 will not set sta pointer so use 5388e84c258SEugene Krasnikov * self_sta_index instead. 5398e84c258SEugene Krasnikov */ 5408e84c258SEugene Krasnikov if (sta_priv) { 5418e84c258SEugene Krasnikov __vif_priv = sta_priv->vif; 542ce75877fSPontus Fuchs vif = wcn36xx_priv_to_vif(__vif_priv); 5438e84c258SEugene Krasnikov 54482cad2a0SPontus Fuchs bd->dpu_sign = sta_priv->ucast_dpu_sign; 5458e84c258SEugene Krasnikov if (vif->type == NL80211_IFTYPE_STATION) { 5468e84c258SEugene Krasnikov bd->sta_index = sta_priv->bss_sta_index; 5478e84c258SEugene Krasnikov bd->dpu_desc_idx = sta_priv->bss_dpu_desc_index; 5488e84c258SEugene Krasnikov } else if (vif->type == NL80211_IFTYPE_AP || 5498e84c258SEugene Krasnikov vif->type == NL80211_IFTYPE_ADHOC || 5508e84c258SEugene Krasnikov vif->type == NL80211_IFTYPE_MESH_POINT) { 5518e84c258SEugene Krasnikov bd->sta_index = sta_priv->sta_index; 5528e84c258SEugene Krasnikov bd->dpu_desc_idx = sta_priv->dpu_desc_index; 5538e84c258SEugene Krasnikov } 5548e84c258SEugene Krasnikov } else { 5558e84c258SEugene Krasnikov __vif_priv = get_vif_by_addr(wcn, hdr->addr2); 5568e84c258SEugene Krasnikov bd->sta_index = __vif_priv->self_sta_index; 5578e84c258SEugene Krasnikov bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index; 5582ba0b461SPontus Fuchs bd->dpu_sign = __vif_priv->self_ucast_dpu_sign; 55982cad2a0SPontus Fuchs } 5608e84c258SEugene Krasnikov 561512b191dSLoic Poulain if (is_data_qos) { 562512b191dSLoic Poulain tid = ieee80211_get_tid(hdr); 563512b191dSLoic Poulain /* TID->QID is one-to-one mapping */ 564512b191dSLoic Poulain bd->queue_id = tid; 565113f304dSLoic Poulain bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_QOS; 566113f304dSLoic Poulain } else { 567113f304dSLoic Poulain bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS; 568512b191dSLoic Poulain } 569512b191dSLoic Poulain 570512b191dSLoic Poulain if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT || 571fdf21cc3SLoic Poulain (sta_priv && !sta_priv->is_data_encrypted)) { 5728e84c258SEugene Krasnikov bd->dpu_ne = 1; 573fdf21cc3SLoic Poulain } 5748e84c258SEugene Krasnikov 575512b191dSLoic Poulain if (ieee80211_is_any_nullfunc(hdr->frame_control)) { 576512b191dSLoic Poulain /* Don't use a regular queue for null packet (no ampdu) */ 577512b191dSLoic Poulain bd->queue_id = WCN36XX_TX_U_WQ_ID; 578d3fd2c95SLoic Poulain bd->bd_rate = WCN36XX_BD_RATE_CTRL; 579113f304dSLoic Poulain if (ieee80211_is_qos_nullfunc(hdr->frame_control)) 580113f304dSLoic Poulain bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_HOST; 581512b191dSLoic Poulain } 582512b191dSLoic Poulain 5838e84c258SEugene Krasnikov if (bcast) { 5848e84c258SEugene Krasnikov bd->ub = 1; 5858e84c258SEugene Krasnikov bd->ack_policy = 1; 5868e84c258SEugene Krasnikov } 5878e84c258SEugene Krasnikov *vif_priv = __vif_priv; 5885f3f9285SBob Copeland 5895f3f9285SBob Copeland wcn36xx_set_tx_pdu(bd, 590e26dc173SBob Copeland is_data_qos ? 5915f3f9285SBob Copeland sizeof(struct ieee80211_qos_hdr) : 5925f3f9285SBob Copeland sizeof(struct ieee80211_hdr_3addr), 593512b191dSLoic Poulain skb->len, tid); 594e26dc173SBob Copeland 595e26dc173SBob Copeland if (sta_priv && is_data_qos) 596e26dc173SBob Copeland wcn36xx_tx_start_ampdu(wcn, sta_priv, skb); 5978e84c258SEugene Krasnikov } 5988e84c258SEugene Krasnikov 5998e84c258SEugene Krasnikov static void wcn36xx_set_tx_mgmt(struct wcn36xx_tx_bd *bd, 6008e84c258SEugene Krasnikov struct wcn36xx *wcn, 6018e84c258SEugene Krasnikov struct wcn36xx_vif **vif_priv, 6025f3f9285SBob Copeland struct sk_buff *skb, 6038e84c258SEugene Krasnikov bool bcast) 6048e84c258SEugene Krasnikov { 6055f3f9285SBob Copeland struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 6068e84c258SEugene Krasnikov struct wcn36xx_vif *__vif_priv = 6078e84c258SEugene Krasnikov get_vif_by_addr(wcn, hdr->addr2); 6088e84c258SEugene Krasnikov bd->sta_index = __vif_priv->self_sta_index; 6098e84c258SEugene Krasnikov bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index; 6108e84c258SEugene Krasnikov bd->dpu_ne = 1; 6118e84c258SEugene Krasnikov 6128e84c258SEugene Krasnikov /* default rate for unicast */ 6138e84c258SEugene Krasnikov if (ieee80211_is_mgmt(hdr->frame_control)) 61457fbcce3SJohannes Berg bd->bd_rate = (WCN36XX_BAND(wcn) == NL80211_BAND_5GHZ) ? 6158e84c258SEugene Krasnikov WCN36XX_BD_RATE_CTRL : 6168e84c258SEugene Krasnikov WCN36XX_BD_RATE_MGMT; 6178e84c258SEugene Krasnikov else if (ieee80211_is_ctl(hdr->frame_control)) 6188e84c258SEugene Krasnikov bd->bd_rate = WCN36XX_BD_RATE_CTRL; 6198e84c258SEugene Krasnikov else 6208e84c258SEugene Krasnikov wcn36xx_warn("frame control type unknown\n"); 6218e84c258SEugene Krasnikov 6228e84c258SEugene Krasnikov /* 6238e84c258SEugene Krasnikov * In joining state trick hardware that probe is sent as 6248e84c258SEugene Krasnikov * unicast even if address is broadcast. 6258e84c258SEugene Krasnikov */ 6268e84c258SEugene Krasnikov if (__vif_priv->is_joining && 6278e84c258SEugene Krasnikov ieee80211_is_probe_req(hdr->frame_control)) 6288e84c258SEugene Krasnikov bcast = false; 6298e84c258SEugene Krasnikov 6308e84c258SEugene Krasnikov if (bcast) { 6318e84c258SEugene Krasnikov /* broadcast */ 6328e84c258SEugene Krasnikov bd->ub = 1; 6338e84c258SEugene Krasnikov /* No ack needed not unicast */ 6348e84c258SEugene Krasnikov bd->ack_policy = 1; 6358e84c258SEugene Krasnikov bd->queue_id = WCN36XX_TX_B_WQ_ID; 6368e84c258SEugene Krasnikov } else 6378e84c258SEugene Krasnikov bd->queue_id = WCN36XX_TX_U_WQ_ID; 6388e84c258SEugene Krasnikov *vif_priv = __vif_priv; 6395f3f9285SBob Copeland 640113f304dSLoic Poulain bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS; 641113f304dSLoic Poulain 6425f3f9285SBob Copeland wcn36xx_set_tx_pdu(bd, 6435f3f9285SBob Copeland ieee80211_is_data_qos(hdr->frame_control) ? 6445f3f9285SBob Copeland sizeof(struct ieee80211_qos_hdr) : 6455f3f9285SBob Copeland sizeof(struct ieee80211_hdr_3addr), 6465f3f9285SBob Copeland skb->len, WCN36XX_TID); 6478e84c258SEugene Krasnikov } 6488e84c258SEugene Krasnikov 6498e84c258SEugene Krasnikov int wcn36xx_start_tx(struct wcn36xx *wcn, 6508e84c258SEugene Krasnikov struct wcn36xx_sta *sta_priv, 6518e84c258SEugene Krasnikov struct sk_buff *skb) 6528e84c258SEugene Krasnikov { 6538e84c258SEugene Krasnikov struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 6548e84c258SEugene Krasnikov struct wcn36xx_vif *vif_priv = NULL; 6558e84c258SEugene Krasnikov struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 6568e84c258SEugene Krasnikov bool is_low = ieee80211_is_data(hdr->frame_control); 6578e84c258SEugene Krasnikov bool bcast = is_broadcast_ether_addr(hdr->addr1) || 6588e84c258SEugene Krasnikov is_multicast_ether_addr(hdr->addr1); 659a9e79b11SLoic Poulain bool ack_ind = (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) && 660a9e79b11SLoic Poulain !(info->flags & IEEE80211_TX_CTL_NO_ACK); 661e5f99081SLoic Poulain struct wcn36xx_tx_bd bd; 662271f1e65SDaniel Mack int ret; 6638e84c258SEugene Krasnikov 664e5f99081SLoic Poulain memset(&bd, 0, sizeof(bd)); 6658e84c258SEugene Krasnikov 6668e84c258SEugene Krasnikov wcn36xx_dbg(WCN36XX_DBG_TX, 6678e84c258SEugene Krasnikov "tx skb %p len %d fc %04x sn %d %s %s\n", 6688e84c258SEugene Krasnikov skb, skb->len, __le16_to_cpu(hdr->frame_control), 6698e84c258SEugene Krasnikov IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)), 6708e84c258SEugene Krasnikov is_low ? "low" : "high", bcast ? "bcast" : "ucast"); 6718e84c258SEugene Krasnikov 6728e84c258SEugene Krasnikov wcn36xx_dbg_dump(WCN36XX_DBG_TX_DUMP, "", skb->data, skb->len); 6738e84c258SEugene Krasnikov 674e5f99081SLoic Poulain bd.dpu_rf = WCN36XX_BMU_WQ_TX; 6758e84c258SEugene Krasnikov 676a9e79b11SLoic Poulain if (unlikely(ack_ind)) { 6778e84c258SEugene Krasnikov wcn36xx_dbg(WCN36XX_DBG_DXE, "TX_ACK status requested\n"); 678fdf21cc3SLoic Poulain 6798e84c258SEugene Krasnikov /* Only one at a time is supported by fw. Stop the TX queues 6808e84c258SEugene Krasnikov * until the ack status gets back. 6818e84c258SEugene Krasnikov */ 6828e84c258SEugene Krasnikov ieee80211_stop_queues(wcn->hw); 683fdf21cc3SLoic Poulain 684fdf21cc3SLoic Poulain /* Request ack indication from the firmware */ 685fdf21cc3SLoic Poulain bd.tx_comp = 1; 6868e84c258SEugene Krasnikov } 6878e84c258SEugene Krasnikov 6888e84c258SEugene Krasnikov /* Data frames served first*/ 6895f3f9285SBob Copeland if (is_low) 690e5f99081SLoic Poulain wcn36xx_set_tx_data(&bd, wcn, &vif_priv, sta_priv, skb, bcast); 6915f3f9285SBob Copeland else 6928e84c258SEugene Krasnikov /* MGMT and CTRL frames are handeld here*/ 693e5f99081SLoic Poulain wcn36xx_set_tx_mgmt(&bd, wcn, &vif_priv, skb, bcast); 6948e84c258SEugene Krasnikov 695*fba52950SKalle Valo buff_to_be(&bd, sizeof(bd)/sizeof(u32)); 696e5f99081SLoic Poulain bd.tx_bd_sign = 0xbdbdbdbd; 6978e84c258SEugene Krasnikov 698271f1e65SDaniel Mack ret = wcn36xx_dxe_tx_frame(wcn, vif_priv, &bd, skb, is_low); 699a9e79b11SLoic Poulain if (unlikely(ret && ack_ind)) { 700a9e79b11SLoic Poulain /* If the skb has not been transmitted, resume TX queue */ 701271f1e65SDaniel Mack ieee80211_wake_queues(wcn->hw); 702271f1e65SDaniel Mack } 703271f1e65SDaniel Mack 704271f1e65SDaniel Mack return ret; 7058e84c258SEugene Krasnikov } 7061216c4d3SEdmond Gagnon 7071216c4d3SEdmond Gagnon void wcn36xx_process_tx_rate(struct ani_global_class_a_stats_info *stats, struct rate_info *info) 7081216c4d3SEdmond Gagnon { 7091216c4d3SEdmond Gagnon /* tx_rate is in units of 500kbps; mac80211 wants them in 100kbps */ 7101216c4d3SEdmond Gagnon if (stats->tx_rate_flags & HAL_TX_RATE_LEGACY) 7111216c4d3SEdmond Gagnon info->legacy = stats->tx_rate * 5; 7121216c4d3SEdmond Gagnon 7131216c4d3SEdmond Gagnon info->flags = 0; 7141216c4d3SEdmond Gagnon info->mcs = stats->mcs_index; 7151216c4d3SEdmond Gagnon info->nss = 1; 7161216c4d3SEdmond Gagnon 7171216c4d3SEdmond Gagnon if (stats->tx_rate_flags & (HAL_TX_RATE_HT20 | HAL_TX_RATE_HT40)) 7181216c4d3SEdmond Gagnon info->flags |= RATE_INFO_FLAGS_MCS; 7191216c4d3SEdmond Gagnon 7201216c4d3SEdmond Gagnon if (stats->tx_rate_flags & (HAL_TX_RATE_VHT20 | HAL_TX_RATE_VHT40 | HAL_TX_RATE_VHT80)) 7211216c4d3SEdmond Gagnon info->flags |= RATE_INFO_FLAGS_VHT_MCS; 7221216c4d3SEdmond Gagnon 7231216c4d3SEdmond Gagnon if (stats->tx_rate_flags & HAL_TX_RATE_SGI) 7241216c4d3SEdmond Gagnon info->flags |= RATE_INFO_FLAGS_SHORT_GI; 7251216c4d3SEdmond Gagnon 7261216c4d3SEdmond Gagnon if (stats->tx_rate_flags & (HAL_TX_RATE_HT20 | HAL_TX_RATE_VHT20)) 7271216c4d3SEdmond Gagnon info->bw = RATE_INFO_BW_20; 7281216c4d3SEdmond Gagnon 7291216c4d3SEdmond Gagnon if (stats->tx_rate_flags & (HAL_TX_RATE_HT40 | HAL_TX_RATE_VHT40)) 7301216c4d3SEdmond Gagnon info->bw = RATE_INFO_BW_40; 7311216c4d3SEdmond Gagnon 7321216c4d3SEdmond Gagnon if (stats->tx_rate_flags & HAL_TX_RATE_VHT80) 7331216c4d3SEdmond Gagnon info->bw = RATE_INFO_BW_80; 7341216c4d3SEdmond Gagnon } 735