Return-path: Received: from paleale.coelho.fi ([176.9.41.70]:45284 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727479AbeHaMh6 (ORCPT ); Fri, 31 Aug 2018 08:37:58 -0400 From: Luca Coelho To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Ido Yariv , Luca Coelho Date: Fri, 31 Aug 2018 11:31:03 +0300 Message-Id: <20180831083130.15525-2-luca@coelho.fi> (sfid-20180831_103151_219549_87A63D5A) In-Reply-To: <20180831083130.15525-1-luca@coelho.fi> References: <20180831083130.15525-1-luca@coelho.fi> Subject: [PATCH 01/28] mac80211: Add he_capa debugfs entry Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ido Yariv Export HE capabilities information via debugfs, similar to HT & VHT. Signed-off-by: Ido Yariv Signed-off-by: Luca Coelho --- net/mac80211/debugfs_sta.c | 325 +++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 4105081dc1df..de66f685a107 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -4,6 +4,7 @@ * Copyright 2007 Johannes Berg * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2016 Intel Deutschland GmbH + * Copyright (C) 2018 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -487,12 +488,335 @@ static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf, p += scnprintf(p, sizeof(buf)+buf-p, "MCS TX highest: %d Mbps\n", le16_to_cpu(vhtc->vht_mcs.tx_highest)); +#undef PFLAG } return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } STA_OPS(vht_capa); +static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + char *buf, *p; + size_t buf_sz = PAGE_SIZE; + struct sta_info *sta = file->private_data; + struct ieee80211_sta_he_cap *hec = &sta->sta.he_cap; + struct ieee80211_he_mcs_nss_supp *nss = &hec->he_mcs_nss_supp; + u8 ppe_size; + u8 *cap; + int i; + ssize_t ret; + + buf = kmalloc(buf_sz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + p += scnprintf(p, buf_sz + buf - p, "HE %ssupported\n", + hec->has_he ? "" : "not "); + if (!hec->has_he) + goto out; + + cap = hec->he_cap_elem.mac_cap_info; + p += scnprintf(p, buf_sz + buf - p, + "MAC-CAP: %#.2x %#.2x %#.2x %#.2x %#.2x\n", + cap[0], cap[1], cap[2], cap[3], cap[4]); + +#define PRINT(fmt, ...) \ + p += scnprintf(p, buf_sz + buf - p, "\t\t" fmt "\n", \ + ##__VA_ARGS__) + +#define PFLAG(t, n, a, b) \ + do { \ + if (cap[n] & IEEE80211_HE_##t##_CAP##n##_##a) \ + PRINT("%s", b); \ + } while (0) + +#define PFLAG_RANGE(t, i, n, s, m, off, fmt) \ + do { \ + u8 msk = IEEE80211_HE_##t##_CAP##i##_##n##_MASK; \ + u8 idx = ((cap[i] & msk) >> (ffs(msk) - 1)) + off; \ + PRINT(fmt, (s << idx) + (m * idx)); \ + } while (0) + +#define PFLAG_RANGE_DEFAULT(t, i, n, s, m, off, fmt, a, b) \ + do { \ + if (cap[i] == IEEE80211_HE_##t ##_CAP##i##_##n##_##a) { \ + PRINT("%s", b); \ + break; \ + } \ + PFLAG_RANGE(t, i, n, s, m, off, fmt); \ + } while (0) + + PFLAG(MAC, 0, HTC_HE, "HTC-HE"); + PFLAG(MAC, 0, TWT_REQ, "TWT-REQ"); + PFLAG(MAC, 0, TWT_RES, "TWT-RES"); + PFLAG_RANGE_DEFAULT(MAC, 0, DYNAMIC_FRAG, 0, 1, 0, + "DYNAMIC-FRAG-LEVEL-%d", NOT_SUPP, "NOT-SUPP"); + PFLAG_RANGE_DEFAULT(MAC, 0, MAX_NUM_FRAG_MSDU, 1, 0, 0, + "MAX-NUM-FRAG-MSDU-%d", UNLIMITED, "UNLIMITED"); + + PFLAG_RANGE_DEFAULT(MAC, 1, MIN_FRAG_SIZE, 128, 0, -1, + "MIN-FRAG-SIZE-%d", UNLIMITED, "UNLIMITED"); + PFLAG_RANGE_DEFAULT(MAC, 1, TF_MAC_PAD_DUR, 0, 8, 0, + "TF-MAC-PAD-DUR-%dUS", MASK, "UNKNOWN"); + PFLAG_RANGE(MAC, 1, MULTI_TID_AGG_QOS, 0, 1, 1, "MULTI-TID-AGG-QOS-%d"); + + if (cap[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) { + switch (((cap[2] << 1) | (cap[1] >> 7)) & 0x3) { + case 0: + PRINT("LINK-ADAPTATION-NO-FEEDBACK"); + break; + case 1: + PRINT("LINK-ADAPTATION-RESERVED"); + break; + case 2: + PRINT("LINK-ADAPTATION-UNSOLICITED-FEEDBACK"); + break; + case 3: + PRINT("LINK-ADAPTATION-BOTH"); + break; + } + } + + PFLAG(MAC, 2, ALL_ACK, "ALL-ACK"); + PFLAG(MAC, 2, UL_MU_RESP_SCHED, "UL-MU-RESP-SCHED"); + PFLAG(MAC, 2, BSR, "BSR"); + PFLAG(MAC, 2, BCAST_TWT, "BCAST-TWT"); + PFLAG(MAC, 2, 32BIT_BA_BITMAP, "32BIT-BA-BITMAP"); + PFLAG(MAC, 2, MU_CASCADING, "MU-CASCADING"); + PFLAG(MAC, 2, ACK_EN, "ACK-EN"); + + PFLAG(MAC, 3, GRP_ADDR_MULTI_STA_BA_DL_MU, + "GRP-ADDR-MULTI-STA-BA-DL-MU"); + PFLAG(MAC, 3, OMI_CONTROL, "OMI-CONTROL"); + PFLAG(MAC, 3, OFDMA_RA, "OFDMA-RA"); + + switch (cap[3] & IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_MASK) { + case IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_USE_VHT: + PRINT("MAX-A-AMPDU-LEN-EXP-USE-VHT"); + break; + case IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_1: + PRINT("MAX-A-AMPDU-LEN-EXP-VHT-1"); + break; + case IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_2: + PRINT("MAX-A-AMPDU-LEN-EXP-VHT-2"); + break; + case IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_RESERVED: + PRINT("MAX-A-AMPDU-LEN-EXP-RESERVED"); + break; + } + + PFLAG(MAC, 3, A_AMSDU_FRAG, "A-AMSDU-FRAG"); + PFLAG(MAC, 3, FLEX_TWT_SCHED, "FLEX-TWT-SCHED"); + PFLAG(MAC, 3, RX_CTRL_FRAME_TO_MULTIBSS, "RX-CTRL-FRAME-TO-MULTIBSS"); + + PFLAG(MAC, 4, BSRP_BQRP_A_MPDU_AGG, "BSRP-BQRP-A-MPDU-AGG"); + PFLAG(MAC, 4, QTP, "QTP"); + PFLAG(MAC, 4, BQR, "BQR"); + PFLAG(MAC, 4, SR_RESP, "SR-RESP"); + PFLAG(MAC, 4, NDP_FB_REP, "NDP-FB-REP"); + PFLAG(MAC, 4, OPS, "OPS"); + PFLAG(MAC, 4, AMDSU_IN_AMPDU, "AMSDU-IN-AMPDU"); + + cap = hec->he_cap_elem.phy_cap_info; + p += scnprintf(p, buf_sz + buf - p, + "PHY CAP: %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x %#.2x\n", + cap[0], cap[1], cap[2], cap[3], cap[4], cap[5], cap[6], + cap[7], cap[8]); + + PFLAG(PHY, 0, DUAL_BAND, "DUAL-BAND"); + + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_IN_2G, + "CHANNEL-WIDTH-SET-40MHZ-IN-2G"); + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G, + "CHANNEL-WIDTH-SET-40MHZ-80MHZ-IN-5G"); + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_160MHZ_IN_5G, + "CHANNEL-WIDTH-SET-160MHZ-IN-5G"); + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G, + "CHANNEL-WIDTH-SET-80PLUS80-MHZ-IN-5G"); + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G, + "CHANNEL-WIDTH-SET-RU-MAPPING-IN-2G"); + PFLAG(PHY, 0, CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G, + "CHANNEL-WIDTH-SET-RU-MAPPING-IN-5G"); + + switch (cap[1] & IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK) { + case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ: + PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-20MHZ"); + break; + case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ: + PRINT("PREAMBLE-PUNC-RX-80MHZ-ONLY-SECOND-40MHZ"); + break; + case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ: + PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-20MHZ"); + break; + case IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ: + PRINT("PREAMBLE-PUNC-RX-160MHZ-ONLY-SECOND-40MHZ"); + break; + } + + PFLAG(PHY, 1, DEVICE_CLASS_A, + "IEEE80211-HE-PHY-CAP1-DEVICE-CLASS-A"); + PFLAG(PHY, 1, LDPC_CODING_IN_PAYLOAD, + "LDPC-CODING-IN-PAYLOAD"); + PFLAG(PHY, 1, HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US, + "HY-CAP1-HE-LTF-AND-GI-FOR-HE-PPDUS-0-8US"); + PRINT("MIDAMBLE-RX-MAX-NSTS-%d", ((cap[2] << 1) | (cap[1] >> 7)) & 0x3); + + PFLAG(PHY, 2, NDP_4x_LTF_AND_3_2US, "NDP-4X-LTF-AND-3-2US"); + PFLAG(PHY, 2, STBC_TX_UNDER_80MHZ, "STBC-TX-UNDER-80MHZ"); + PFLAG(PHY, 2, STBC_RX_UNDER_80MHZ, "STBC-RX-UNDER-80MHZ"); + PFLAG(PHY, 2, DOPPLER_TX, "DOPPLER-TX"); + PFLAG(PHY, 2, DOPPLER_RX, "DOPPLER-RX"); + PFLAG(PHY, 2, UL_MU_FULL_MU_MIMO, "UL-MU-FULL-MU-MIMO"); + PFLAG(PHY, 2, UL_MU_PARTIAL_MU_MIMO, "UL-MU-PARTIAL-MU-MIMO"); + + switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK) { + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM: + PRINT("DCM-MAX-CONST-TX-NO-DCM"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK: + PRINT("DCM-MAX-CONST-TX-BPSK"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK: + PRINT("DCM-MAX-CONST-TX-QPSK"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM: + PRINT("DCM-MAX-CONST-TX-16-QAM"); + break; + } + + PFLAG(PHY, 3, DCM_MAX_TX_NSS_1, "DCM-MAX-TX-NSS-1"); + PFLAG(PHY, 3, DCM_MAX_TX_NSS_2, "DCM-MAX-TX-NSS-2"); + + switch (cap[3] & IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK) { + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM: + PRINT("DCM-MAX-CONST-RX-NO-DCM"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK: + PRINT("DCM-MAX-CONST-RX-BPSK"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK: + PRINT("DCM-MAX-CONST-RX-QPSK"); + break; + case IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM: + PRINT("DCM-MAX-CONST-RX-16-QAM"); + break; + } + + PFLAG(PHY, 3, DCM_MAX_RX_NSS_1, "DCM-MAX-RX-NSS-1"); + PFLAG(PHY, 3, DCM_MAX_RX_NSS_2, "DCM-MAX-RX-NSS-2"); + PFLAG(PHY, 3, RX_HE_MU_PPDU_FROM_NON_AP_STA, + "RX-HE-MU-PPDU-FROM-NON-AP-STA"); + PFLAG(PHY, 3, SU_BEAMFORMER, "SU-BEAMFORMER"); + + PFLAG(PHY, 4, SU_BEAMFORMEE, "SU-BEAMFORMEE"); + PFLAG(PHY, 4, MU_BEAMFORMER, "MU-BEAMFORMER"); + + PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_UNDER_80MHZ, 0, 1, 4, + "BEAMFORMEE-MAX-STS-UNDER-%d"); + PFLAG_RANGE(PHY, 4, BEAMFORMEE_MAX_STS_ABOVE_80MHZ, 0, 1, 4, + "BEAMFORMEE-MAX-STS-ABOVE-%d"); + + PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ, 0, 1, 1, + "NUM-SND-DIM-UNDER-80MHZ-%d"); + PFLAG_RANGE(PHY, 5, BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ, 0, 1, 1, + "NUM-SND-DIM-ABOVE-80MHZ-%d"); + PFLAG(PHY, 5, NG16_SU_FEEDBACK, "NG16-SU-FEEDBACK"); + PFLAG(PHY, 5, NG16_MU_FEEDBACK, "NG16-MU-FEEDBACK"); + + PFLAG(PHY, 6, CODEBOOK_SIZE_42_SU, "CODEBOOK-SIZE-42-SU"); + PFLAG(PHY, 6, CODEBOOK_SIZE_75_MU, "CODEBOOK-SIZE-75-MU"); + PFLAG(PHY, 6, TRIG_SU_BEAMFORMER_FB, "TRIG-SU-BEAMFORMER-FB"); + PFLAG(PHY, 6, TRIG_MU_BEAMFORMER_FB, "TRIG-MU-BEAMFORMER-FB"); + PFLAG(PHY, 6, TRIG_CQI_FB, "TRIG-CQI-FB"); + PFLAG(PHY, 6, PARTIAL_BW_EXT_RANGE, "PARTIAL-BW-EXT-RANGE"); + PFLAG(PHY, 6, PARTIAL_BANDWIDTH_DL_MUMIMO, + "PARTIAL-BANDWIDTH-DL-MUMIMO"); + PFLAG(PHY, 6, PPE_THRESHOLD_PRESENT, "PPE-THRESHOLD-PRESENT"); + + PFLAG(PHY, 7, SRP_BASED_SR, "SRP-BASED-SR"); + PFLAG(PHY, 7, POWER_BOOST_FACTOR_AR, "POWER-BOOST-FACTOR-AR"); + PFLAG(PHY, 7, HE_SU_MU_PPDU_4XLTF_AND_08_US_GI, + "HE-SU-MU-PPDU-4XLTF-AND-08-US-GI"); + PFLAG_RANGE(PHY, 7, MAX_NC, 0, 1, 1, "MAX-NC-%d"); + PFLAG(PHY, 7, STBC_TX_ABOVE_80MHZ, "STBC-TX-ABOVE-80MHZ"); + PFLAG(PHY, 7, STBC_RX_ABOVE_80MHZ, "STBC-RX-ABOVE-80MHZ"); + + PFLAG(PHY, 8, HE_ER_SU_PPDU_4XLTF_AND_08_US_GI, + "HE-ER-SU-PPDU-4XLTF-AND-08-US-GI"); + PFLAG(PHY, 8, 20MHZ_IN_40MHZ_HE_PPDU_IN_2G, + "20MHZ-IN-40MHZ-HE-PPDU-IN-2G"); + PFLAG(PHY, 8, 20MHZ_IN_160MHZ_HE_PPDU, "20MHZ-IN-160MHZ-HE-PPDU"); + PFLAG(PHY, 8, 80MHZ_IN_160MHZ_HE_PPDU, "80MHZ-IN-160MHZ-HE-PPDU"); + PFLAG(PHY, 8, HE_ER_SU_1XLTF_AND_08_US_GI, + "HE-ER-SU-1XLTF-AND-08-US-GI"); + PFLAG(PHY, 8, MIDAMBLE_RX_2X_AND_1XLTF, "MIDAMBLE-RX-2X-AND-1XLTF"); + +#undef PFLAG_RANGE_DEFAULT +#undef PFLAG_RANGE +#undef PFLAG + +#define PRINT_NSS_SUPP(f, n) \ + do { \ + int i; \ + u16 v = le16_to_cpu(nss->f); \ + p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v); \ + for (i = 0; i < 8; i += 2) { \ + switch ((v >> i) & 0x3) { \ + case 0: \ + PRINT(n "-%d-SUPPORT-0-7", i / 2); \ + break; \ + case 1: \ + PRINT(n "-%d-SUPPORT-0-9", i / 2); \ + break; \ + case 2: \ + PRINT(n "-%d-SUPPORT-0-11", i / 2); \ + break; \ + case 3: \ + PRINT(n "-%d-NOT-SUPPORTED", i / 2); \ + break; \ + } \ + } \ + } while (0) + + PRINT_NSS_SUPP(rx_mcs_80, "RX-MCS-80"); + PRINT_NSS_SUPP(tx_mcs_80, "TX-MCS-80"); + + if (cap[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) { + PRINT_NSS_SUPP(rx_mcs_160, "RX-MCS-160"); + PRINT_NSS_SUPP(tx_mcs_160, "TX-MCS-160"); + } + + if (cap[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { + PRINT_NSS_SUPP(rx_mcs_80p80, "RX-MCS-80P80"); + PRINT_NSS_SUPP(tx_mcs_80p80, "TX-MCS-80P80"); + } + +#undef PRINT_NSS_SUPP +#undef PRINT + + if (!(cap[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)) + goto out; + + p += scnprintf(p, buf_sz + buf - p, "PPE-THRESHOLDS: %#.2x", + hec->ppe_thres[0]); + + ppe_size = ieee80211_he_ppe_size(hec->ppe_thres[0], cap); + for (i = 1; i < ppe_size; i++) { + p += scnprintf(p, buf_sz + buf - p, " %#.2x", + hec->ppe_thres[i]); + } + p += scnprintf(p, buf_sz + buf - p, "\n"); + +out: + ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); + kfree(buf); + return ret; +} +STA_OPS(he_capa); #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, 0400, \ @@ -538,6 +862,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(agg_status); DEBUGFS_ADD(ht_capa); DEBUGFS_ADD(vht_capa); + DEBUGFS_ADD(he_capa); DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates); DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments); -- 2.18.0