18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 3*57b7b345SMiri Korenblit * Copyright (C) 2012-2014, 2018-2021 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7c5aaa8beSWang Xuerui #include <asm/unaligned.h> 8a399f980SJohannes Berg #include <linux/etherdevice.h> 9e705c121SKalle Valo #include <linux/skbuff.h> 10e705c121SKalle Valo #include "iwl-trans.h" 11e705c121SKalle Valo #include "mvm.h" 12e705c121SKalle Valo #include "fw-api.h" 13e705c121SKalle Valo 14e705c121SKalle Valo /* 15e705c121SKalle Valo * iwl_mvm_rx_rx_phy_cmd - REPLY_RX_PHY_CMD handler 16e705c121SKalle Valo * 17e705c121SKalle Valo * Copies the phy information in mvm->last_phy_info, it will be used when the 18e705c121SKalle Valo * actual data will come from the fw in the next packet. 19e705c121SKalle Valo */ 20e705c121SKalle Valo void iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 21e705c121SKalle Valo { 22e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 231e1a58beSJohannes Berg unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 241e1a58beSJohannes Berg 251e1a58beSJohannes Berg if (unlikely(pkt_len < sizeof(mvm->last_phy_info))) 261e1a58beSJohannes Berg return; 27e705c121SKalle Valo 28e705c121SKalle Valo memcpy(&mvm->last_phy_info, pkt->data, sizeof(mvm->last_phy_info)); 29e705c121SKalle Valo mvm->ampdu_ref++; 30e705c121SKalle Valo 31e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 32e705c121SKalle Valo if (mvm->last_phy_info.phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) { 33e705c121SKalle Valo spin_lock(&mvm->drv_stats_lock); 34e705c121SKalle Valo mvm->drv_rx_stats.ampdu_count++; 35e705c121SKalle Valo spin_unlock(&mvm->drv_stats_lock); 36e705c121SKalle Valo } 37e705c121SKalle Valo #endif 38e705c121SKalle Valo } 39e705c121SKalle Valo 40e705c121SKalle Valo /* 41e705c121SKalle Valo * iwl_mvm_pass_packet_to_mac80211 - builds the packet for mac80211 42e705c121SKalle Valo * 43e705c121SKalle Valo * Adds the rxb to a new skb and give it to mac80211 44e705c121SKalle Valo */ 45e705c121SKalle Valo static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, 4643ec72b7SJohannes Berg struct ieee80211_sta *sta, 47e705c121SKalle Valo struct napi_struct *napi, 48e705c121SKalle Valo struct sk_buff *skb, 49e705c121SKalle Valo struct ieee80211_hdr *hdr, u16 len, 50bdbc58abSDan Carpenter u8 crypt_len, 51e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 52e705c121SKalle Valo { 535cddd05cSJohannes Berg unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control); 545cddd05cSJohannes Berg unsigned int fraglen; 555cddd05cSJohannes Berg 565cddd05cSJohannes Berg /* 575cddd05cSJohannes Berg * The 'hdrlen' (plus the 8 bytes for the SNAP and the crypt_len, 585cddd05cSJohannes Berg * but those are all multiples of 4 long) all goes away, but we 595cddd05cSJohannes Berg * want the *end* of it, which is going to be the start of the IP 605cddd05cSJohannes Berg * header, to be aligned when it gets pulled in. 615cddd05cSJohannes Berg * The beginning of the skb->data is aligned on at least a 4-byte 625cddd05cSJohannes Berg * boundary after allocation. Everything here is aligned at least 635cddd05cSJohannes Berg * on a 2-byte boundary so we can just take hdrlen & 3 and pad by 645cddd05cSJohannes Berg * the result. 655cddd05cSJohannes Berg */ 665cddd05cSJohannes Berg skb_reserve(skb, hdrlen & 3); 67e705c121SKalle Valo 68e705c121SKalle Valo /* If frame is small enough to fit in skb->head, pull it completely. 69e705c121SKalle Valo * If not, only pull ieee80211_hdr (including crypto if present, and 70e705c121SKalle Valo * an additional 8 bytes for SNAP/ethertype, see below) so that 71e705c121SKalle Valo * splice() or TCP coalesce are more efficient. 72e705c121SKalle Valo * 73e705c121SKalle Valo * Since, in addition, ieee80211_data_to_8023() always pull in at 74e705c121SKalle Valo * least 8 bytes (possibly more for mesh) we can do the same here 75e705c121SKalle Valo * to save the cost of doing it later. That still doesn't pull in 76e705c121SKalle Valo * the actual IP header since the typical case has a SNAP header. 77e705c121SKalle Valo * If the latter changes (there are efforts in the standards group 78e705c121SKalle Valo * to do so) we should revisit this and ieee80211_data_to_8023(). 79e705c121SKalle Valo */ 805cddd05cSJohannes Berg hdrlen = (len <= skb_tailroom(skb)) ? len : hdrlen + crypt_len + 8; 81e705c121SKalle Valo 8259ae1d12SJohannes Berg skb_put_data(skb, hdr, hdrlen); 83e705c121SKalle Valo fraglen = len - hdrlen; 84e705c121SKalle Valo 85e705c121SKalle Valo if (fraglen) { 86e705c121SKalle Valo int offset = (void *)hdr + hdrlen - 87e705c121SKalle Valo rxb_addr(rxb) + rxb_offset(rxb); 88e705c121SKalle Valo 89e705c121SKalle Valo skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset, 90e705c121SKalle Valo fraglen, rxb->truesize); 91e705c121SKalle Valo } 92e705c121SKalle Valo 9343ec72b7SJohannes Berg ieee80211_rx_napi(mvm->hw, sta, skb, napi); 94e705c121SKalle Valo } 95e705c121SKalle Valo 96e705c121SKalle Valo /* 97e705c121SKalle Valo * iwl_mvm_get_signal_strength - use new rx PHY INFO API 98e705c121SKalle Valo * values are reported by the fw as positive values - need to negate 99e705c121SKalle Valo * to obtain their dBM. Account for missing antennas by replacing 0 100e705c121SKalle Valo * values by -256dBm: practically 0 power and a non-feasible 8 bit value. 101e705c121SKalle Valo */ 102e705c121SKalle Valo static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, 103e705c121SKalle Valo struct iwl_rx_phy_info *phy_info, 104e705c121SKalle Valo struct ieee80211_rx_status *rx_status) 105e705c121SKalle Valo { 106*57b7b345SMiri Korenblit int energy_a, energy_b, max_energy; 107e705c121SKalle Valo u32 val; 108e705c121SKalle Valo 109e705c121SKalle Valo val = 110e705c121SKalle Valo le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]); 111e705c121SKalle Valo energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >> 112e705c121SKalle Valo IWL_RX_INFO_ENERGY_ANT_A_POS; 113e705c121SKalle Valo energy_a = energy_a ? -energy_a : S8_MIN; 114e705c121SKalle Valo energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >> 115e705c121SKalle Valo IWL_RX_INFO_ENERGY_ANT_B_POS; 116e705c121SKalle Valo energy_b = energy_b ? -energy_b : S8_MIN; 117e705c121SKalle Valo max_energy = max(energy_a, energy_b); 118e705c121SKalle Valo 119*57b7b345SMiri Korenblit IWL_DEBUG_STATS(mvm, "energy In A %d B %d , and max %d\n", 120*57b7b345SMiri Korenblit energy_a, energy_b, max_energy); 121e705c121SKalle Valo 122e705c121SKalle Valo rx_status->signal = max_energy; 123e705c121SKalle Valo rx_status->chains = (le16_to_cpu(phy_info->phy_flags) & 124e705c121SKalle Valo RX_RES_PHY_FLAGS_ANTENNA) 125e705c121SKalle Valo >> RX_RES_PHY_FLAGS_ANTENNA_POS; 126e705c121SKalle Valo rx_status->chain_signal[0] = energy_a; 127e705c121SKalle Valo rx_status->chain_signal[1] = energy_b; 128e705c121SKalle Valo } 129e705c121SKalle Valo 130e705c121SKalle Valo /* 131e705c121SKalle Valo * iwl_mvm_set_mac80211_rx_flag - translate fw status to mac80211 format 132e705c121SKalle Valo * @mvm: the mvm object 133e705c121SKalle Valo * @hdr: 80211 header 134e705c121SKalle Valo * @stats: status in mac80211's format 135e705c121SKalle Valo * @rx_pkt_status: status coming from fw 136e705c121SKalle Valo * 137e705c121SKalle Valo * returns non 0 value if the packet should be dropped 138e705c121SKalle Valo */ 139e705c121SKalle Valo static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm, 140e705c121SKalle Valo struct ieee80211_hdr *hdr, 141e705c121SKalle Valo struct ieee80211_rx_status *stats, 142e705c121SKalle Valo u32 rx_pkt_status, 143e705c121SKalle Valo u8 *crypt_len) 144e705c121SKalle Valo { 145e705c121SKalle Valo if (!ieee80211_has_protected(hdr->frame_control) || 146e705c121SKalle Valo (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) == 147e705c121SKalle Valo RX_MPDU_RES_STATUS_SEC_NO_ENC) 148e705c121SKalle Valo return 0; 149e705c121SKalle Valo 150e705c121SKalle Valo /* packet was encrypted with unknown alg */ 151e705c121SKalle Valo if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) == 152e705c121SKalle Valo RX_MPDU_RES_STATUS_SEC_ENC_ERR) 153e705c121SKalle Valo return 0; 154e705c121SKalle Valo 155e705c121SKalle Valo switch (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) { 156e705c121SKalle Valo case RX_MPDU_RES_STATUS_SEC_CCM_ENC: 157e705c121SKalle Valo /* alg is CCM: check MIC only */ 158e705c121SKalle Valo if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK)) 159e705c121SKalle Valo return -1; 160e705c121SKalle Valo 161e705c121SKalle Valo stats->flag |= RX_FLAG_DECRYPTED; 162e705c121SKalle Valo *crypt_len = IEEE80211_CCMP_HDR_LEN; 163e705c121SKalle Valo return 0; 164e705c121SKalle Valo 165e705c121SKalle Valo case RX_MPDU_RES_STATUS_SEC_TKIP_ENC: 166e705c121SKalle Valo /* Don't drop the frame and decrypt it in SW */ 16757df3839SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, 16857df3839SSara Sharon IWL_UCODE_TLV_API_DEPRECATE_TTAK) && 16957df3839SSara Sharon !(rx_pkt_status & RX_MPDU_RES_STATUS_TTAK_OK)) 170e705c121SKalle Valo return 0; 171e705c121SKalle Valo *crypt_len = IEEE80211_TKIP_IV_LEN; 1725a2abdcaSGustavo A. R. Silva fallthrough; 173e705c121SKalle Valo 174e705c121SKalle Valo case RX_MPDU_RES_STATUS_SEC_WEP_ENC: 175e705c121SKalle Valo if (!(rx_pkt_status & RX_MPDU_RES_STATUS_ICV_OK)) 176e705c121SKalle Valo return -1; 177e705c121SKalle Valo 178e705c121SKalle Valo stats->flag |= RX_FLAG_DECRYPTED; 179e705c121SKalle Valo if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) == 180e705c121SKalle Valo RX_MPDU_RES_STATUS_SEC_WEP_ENC) 181e705c121SKalle Valo *crypt_len = IEEE80211_WEP_IV_LEN; 182e705c121SKalle Valo return 0; 183e705c121SKalle Valo 184e705c121SKalle Valo case RX_MPDU_RES_STATUS_SEC_EXT_ENC: 185e705c121SKalle Valo if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK)) 186e705c121SKalle Valo return -1; 187e705c121SKalle Valo stats->flag |= RX_FLAG_DECRYPTED; 188e705c121SKalle Valo return 0; 189e705c121SKalle Valo 190e705c121SKalle Valo default: 191baf41bc3SShaul Triebitz /* Expected in monitor (not having the keys) */ 192baf41bc3SShaul Triebitz if (!mvm->monitor_on) 193e705c121SKalle Valo IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status); 194e705c121SKalle Valo } 195e705c121SKalle Valo 196e705c121SKalle Valo return 0; 197e705c121SKalle Valo } 198e705c121SKalle Valo 1997d9d0d56SLuca Coelho static void iwl_mvm_rx_handle_tcm(struct iwl_mvm *mvm, 2007d9d0d56SLuca Coelho struct ieee80211_sta *sta, 2017d9d0d56SLuca Coelho struct ieee80211_hdr *hdr, u32 len, 2027d9d0d56SLuca Coelho struct iwl_rx_phy_info *phy_info, 2037d9d0d56SLuca Coelho u32 rate_n_flags) 2047d9d0d56SLuca Coelho { 2057d9d0d56SLuca Coelho struct iwl_mvm_sta *mvmsta; 2067d9d0d56SLuca Coelho struct iwl_mvm_tcm_mac *mdata; 2077d9d0d56SLuca Coelho int mac; 2087d9d0d56SLuca Coelho int ac = IEEE80211_AC_BE; /* treat non-QoS as BE */ 209b0ffe455SJohannes Berg struct iwl_mvm_vif *mvmvif; 210b0ffe455SJohannes Berg /* expected throughput in 100Kbps, single stream, 20 MHz */ 211b0ffe455SJohannes Berg static const u8 thresh_tpt[] = { 212b0ffe455SJohannes Berg 9, 18, 30, 42, 60, 78, 90, 96, 120, 135, 213b0ffe455SJohannes Berg }; 214b0ffe455SJohannes Berg u16 thr; 2157d9d0d56SLuca Coelho 2167d9d0d56SLuca Coelho if (ieee80211_is_data_qos(hdr->frame_control)) 2177d9d0d56SLuca Coelho ac = tid_to_mac80211_ac[ieee80211_get_tid(hdr)]; 2187d9d0d56SLuca Coelho 2197d9d0d56SLuca Coelho mvmsta = iwl_mvm_sta_from_mac80211(sta); 2207d9d0d56SLuca Coelho mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK; 2217d9d0d56SLuca Coelho 2227d9d0d56SLuca Coelho if (time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD)) 2237d9d0d56SLuca Coelho schedule_delayed_work(&mvm->tcm.work, 0); 2247d9d0d56SLuca Coelho mdata = &mvm->tcm.data[mac]; 2257d9d0d56SLuca Coelho mdata->rx.pkts[ac]++; 2267d9d0d56SLuca Coelho 2277d9d0d56SLuca Coelho /* count the airtime only once for each ampdu */ 2287d9d0d56SLuca Coelho if (mdata->rx.last_ampdu_ref != mvm->ampdu_ref) { 2297d9d0d56SLuca Coelho mdata->rx.last_ampdu_ref = mvm->ampdu_ref; 2307d9d0d56SLuca Coelho mdata->rx.airtime += le16_to_cpu(phy_info->frame_time); 2317d9d0d56SLuca Coelho } 2327d9d0d56SLuca Coelho 2337d9d0d56SLuca Coelho if (!(rate_n_flags & (RATE_MCS_HT_MSK | RATE_MCS_VHT_MSK))) 2347d9d0d56SLuca Coelho return; 2357d9d0d56SLuca Coelho 236b0ffe455SJohannes Berg mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 237b0ffe455SJohannes Berg 238b0ffe455SJohannes Berg if (mdata->opened_rx_ba_sessions || 239b0ffe455SJohannes Berg mdata->uapsd_nonagg_detect.detected || 240b0ffe455SJohannes Berg (!mvmvif->queue_params[IEEE80211_AC_VO].uapsd && 241b0ffe455SJohannes Berg !mvmvif->queue_params[IEEE80211_AC_VI].uapsd && 242b0ffe455SJohannes Berg !mvmvif->queue_params[IEEE80211_AC_BE].uapsd && 243b0ffe455SJohannes Berg !mvmvif->queue_params[IEEE80211_AC_BK].uapsd) || 244b0ffe455SJohannes Berg mvmsta->sta_id != mvmvif->ap_sta_id) 245b0ffe455SJohannes Berg return; 246b0ffe455SJohannes Berg 247b0ffe455SJohannes Berg if (rate_n_flags & RATE_MCS_HT_MSK) { 248b0ffe455SJohannes Berg thr = thresh_tpt[rate_n_flags & RATE_HT_MCS_RATE_CODE_MSK]; 249b0ffe455SJohannes Berg thr *= 1 + ((rate_n_flags & RATE_HT_MCS_NSS_MSK) >> 250b0ffe455SJohannes Berg RATE_HT_MCS_NSS_POS); 251b0ffe455SJohannes Berg } else { 252b0ffe455SJohannes Berg if (WARN_ON((rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK) >= 253b0ffe455SJohannes Berg ARRAY_SIZE(thresh_tpt))) 254b0ffe455SJohannes Berg return; 255b0ffe455SJohannes Berg thr = thresh_tpt[rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK]; 256b0ffe455SJohannes Berg thr *= 1 + ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> 257b0ffe455SJohannes Berg RATE_VHT_MCS_NSS_POS); 258b0ffe455SJohannes Berg } 259b0ffe455SJohannes Berg 260b0ffe455SJohannes Berg thr <<= ((rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) >> 261b0ffe455SJohannes Berg RATE_MCS_CHAN_WIDTH_POS); 262b0ffe455SJohannes Berg 263b0ffe455SJohannes Berg mdata->uapsd_nonagg_detect.rx_bytes += len; 264b0ffe455SJohannes Berg ewma_rate_add(&mdata->uapsd_nonagg_detect.rate, thr); 2657d9d0d56SLuca Coelho } 2667d9d0d56SLuca Coelho 267e705c121SKalle Valo static void iwl_mvm_rx_csum(struct ieee80211_sta *sta, 268e705c121SKalle Valo struct sk_buff *skb, 269e705c121SKalle Valo u32 status) 270e705c121SKalle Valo { 271e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 272e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 273e705c121SKalle Valo 274e705c121SKalle Valo if (mvmvif->features & NETIF_F_RXCSUM && 275e705c121SKalle Valo status & RX_MPDU_RES_STATUS_CSUM_DONE && 276e705c121SKalle Valo status & RX_MPDU_RES_STATUS_CSUM_OK) 277e705c121SKalle Valo skb->ip_summed = CHECKSUM_UNNECESSARY; 278e705c121SKalle Valo } 279e705c121SKalle Valo 280e705c121SKalle Valo /* 281e705c121SKalle Valo * iwl_mvm_rx_rx_mpdu - REPLY_RX_MPDU_CMD handler 282e705c121SKalle Valo * 283e705c121SKalle Valo * Handles the actual data of the Rx packet from the fw 284e705c121SKalle Valo */ 285e705c121SKalle Valo void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi, 286e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 287e705c121SKalle Valo { 288e705c121SKalle Valo struct ieee80211_hdr *hdr; 289e705c121SKalle Valo struct ieee80211_rx_status *rx_status; 290e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 291e705c121SKalle Valo struct iwl_rx_phy_info *phy_info; 292e705c121SKalle Valo struct iwl_rx_mpdu_res_start *rx_res; 293a399f980SJohannes Berg struct ieee80211_sta *sta = NULL; 294e705c121SKalle Valo struct sk_buff *skb; 295efc0ec5aSJohannes Berg u32 len, pkt_len = iwl_rx_packet_payload_len(pkt); 296e705c121SKalle Valo u32 rate_n_flags; 297e705c121SKalle Valo u32 rx_pkt_status; 298e705c121SKalle Valo u8 crypt_len = 0; 299e705c121SKalle Valo 300b8aba27cSJohannes Berg if (unlikely(pkt_len < sizeof(*rx_res))) { 301b8aba27cSJohannes Berg IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n"); 302b8aba27cSJohannes Berg return; 303b8aba27cSJohannes Berg } 304b8aba27cSJohannes Berg 305e705c121SKalle Valo phy_info = &mvm->last_phy_info; 306e705c121SKalle Valo rx_res = (struct iwl_rx_mpdu_res_start *)pkt->data; 307e705c121SKalle Valo hdr = (struct ieee80211_hdr *)(pkt->data + sizeof(*rx_res)); 308e705c121SKalle Valo len = le16_to_cpu(rx_res->byte_count); 309efc0ec5aSJohannes Berg 310efc0ec5aSJohannes Berg if (unlikely(len + sizeof(*rx_res) + sizeof(__le32) > pkt_len)) { 311efc0ec5aSJohannes Berg IWL_DEBUG_DROP(mvm, "FW lied about packet len\n"); 312efc0ec5aSJohannes Berg return; 313efc0ec5aSJohannes Berg } 314efc0ec5aSJohannes Berg 315c5aaa8beSWang Xuerui rx_pkt_status = get_unaligned_le32((__le32 *) 316e705c121SKalle Valo (pkt->data + sizeof(*rx_res) + len)); 317e705c121SKalle Valo 318e705c121SKalle Valo /* Dont use dev_alloc_skb(), we'll have enough headroom once 319e705c121SKalle Valo * ieee80211_hdr pulled. 320e705c121SKalle Valo */ 321e705c121SKalle Valo skb = alloc_skb(128, GFP_ATOMIC); 322e705c121SKalle Valo if (!skb) { 323e705c121SKalle Valo IWL_ERR(mvm, "alloc_skb failed\n"); 324e705c121SKalle Valo return; 325e705c121SKalle Valo } 326e705c121SKalle Valo 327e705c121SKalle Valo rx_status = IEEE80211_SKB_RXCB(skb); 328e705c121SKalle Valo 329e705c121SKalle Valo /* 330e705c121SKalle Valo * drop the packet if it has failed being decrypted by HW 331e705c121SKalle Valo */ 332e705c121SKalle Valo if (iwl_mvm_set_mac80211_rx_flag(mvm, hdr, rx_status, rx_pkt_status, 333e705c121SKalle Valo &crypt_len)) { 334e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Bad decryption results 0x%08x\n", 335e705c121SKalle Valo rx_pkt_status); 336e705c121SKalle Valo kfree_skb(skb); 337e705c121SKalle Valo return; 338e705c121SKalle Valo } 339e705c121SKalle Valo 340e705c121SKalle Valo /* 341e705c121SKalle Valo * Keep packets with CRC errors (and with overrun) for monitor mode 342e705c121SKalle Valo * (otherwise the firmware discards them) but mark them as bad. 343e705c121SKalle Valo */ 344e705c121SKalle Valo if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) || 345e705c121SKalle Valo !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) { 346e705c121SKalle Valo IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status); 347e705c121SKalle Valo rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; 348e705c121SKalle Valo } 349e705c121SKalle Valo 350e705c121SKalle Valo /* This will be used in several places later */ 351e705c121SKalle Valo rate_n_flags = le32_to_cpu(phy_info->rate_n_flags); 352e705c121SKalle Valo 353e705c121SKalle Valo /* rx_status carries information about the packet to mac80211 */ 354e705c121SKalle Valo rx_status->mactime = le64_to_cpu(phy_info->timestamp); 355e705c121SKalle Valo rx_status->device_timestamp = le32_to_cpu(phy_info->system_timestamp); 356e705c121SKalle Valo rx_status->band = 357e705c121SKalle Valo (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 35857fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 359e705c121SKalle Valo rx_status->freq = 360e705c121SKalle Valo ieee80211_channel_to_frequency(le16_to_cpu(phy_info->channel), 361e705c121SKalle Valo rx_status->band); 36277fe7395SSara Sharon 36377fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 36477fe7395SSara Sharon rx_status->flag |= RX_FLAG_MACTIME_PLCP_START; 365e705c121SKalle Valo 366e705c121SKalle Valo iwl_mvm_get_signal_strength(mvm, phy_info, rx_status); 367e705c121SKalle Valo 368e705c121SKalle Valo IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status->signal, 369e705c121SKalle Valo (unsigned long long)rx_status->mactime); 370e705c121SKalle Valo 371e705c121SKalle Valo rcu_read_lock(); 372a399f980SJohannes Berg if (rx_pkt_status & RX_MPDU_RES_STATUS_SRC_STA_FOUND) { 373a399f980SJohannes Berg u32 id = rx_pkt_status & RX_MPDU_RES_STATUS_STA_ID_MSK; 374a399f980SJohannes Berg 375a399f980SJohannes Berg id >>= RX_MDPU_RES_STATUS_STA_ID_SHIFT; 376a399f980SJohannes Berg 377be9ae34eSNathan Errera if (!WARN_ON_ONCE(id >= mvm->fw->ucode_capa.num_stations)) { 378a399f980SJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[id]); 379a399f980SJohannes Berg if (IS_ERR(sta)) 380a399f980SJohannes Berg sta = NULL; 381a399f980SJohannes Berg } 382a399f980SJohannes Berg } else if (!is_multicast_ether_addr(hdr->addr2)) { 383a399f980SJohannes Berg /* This is fine since we prevent two stations with the same 384a399f980SJohannes Berg * address from being added. 385e705c121SKalle Valo */ 386a399f980SJohannes Berg sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL); 387e705c121SKalle Valo } 388e705c121SKalle Valo 389e705c121SKalle Valo if (sta) { 390e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 391d3a108a4SAndrei Otcheretianski struct ieee80211_vif *tx_blocked_vif = 392d3a108a4SAndrei Otcheretianski rcu_dereference(mvm->csa_tx_blocked_vif); 3936c042d75SSara Sharon struct iwl_fw_dbg_trigger_tlv *trig; 3946c042d75SSara Sharon struct ieee80211_vif *vif = mvmsta->vif; 395e705c121SKalle Valo 396a399f980SJohannes Berg /* We have tx blocked stations (with CS bit). If we heard 397a399f980SJohannes Berg * frames from a blocked station on a new channel we can 398a399f980SJohannes Berg * TX to it again. 399a399f980SJohannes Berg */ 4006c042d75SSara Sharon if (unlikely(tx_blocked_vif) && vif == tx_blocked_vif) { 401d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif = 402d3a108a4SAndrei Otcheretianski iwl_mvm_vif_from_mac80211(tx_blocked_vif); 403d3a108a4SAndrei Otcheretianski 404d3a108a4SAndrei Otcheretianski if (mvmvif->csa_target_freq == rx_status->freq) 405d3a108a4SAndrei Otcheretianski iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, 406d3a108a4SAndrei Otcheretianski false); 407d3a108a4SAndrei Otcheretianski } 408a399f980SJohannes Berg 409ecaf71deSGregory Greenman rs_update_last_rssi(mvm, mvmsta, rx_status); 410e705c121SKalle Valo 4116c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, 4126c042d75SSara Sharon ieee80211_vif_to_wdev(vif), 4136c042d75SSara Sharon FW_DBG_TRIGGER_RSSI); 4146c042d75SSara Sharon 4156c042d75SSara Sharon if (trig && ieee80211_is_beacon(hdr->frame_control)) { 416e705c121SKalle Valo struct iwl_fw_dbg_trigger_low_rssi *rssi_trig; 417e705c121SKalle Valo s32 rssi; 418e705c121SKalle Valo 419e705c121SKalle Valo rssi_trig = (void *)trig->data; 420e705c121SKalle Valo rssi = le32_to_cpu(rssi_trig->rssi); 421e705c121SKalle Valo 4226c042d75SSara Sharon if (rx_status->signal < rssi) 4237174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 4247174beb6SJohannes Berg NULL); 425e705c121SKalle Valo } 426e705c121SKalle Valo 4277d9d0d56SLuca Coelho if (!mvm->tcm.paused && len >= sizeof(*hdr) && 4287d9d0d56SLuca Coelho !is_multicast_ether_addr(hdr->addr1) && 4297d9d0d56SLuca Coelho ieee80211_is_data(hdr->frame_control)) 4307d9d0d56SLuca Coelho iwl_mvm_rx_handle_tcm(mvm, sta, hdr, len, phy_info, 4317d9d0d56SLuca Coelho rate_n_flags); 4327d9d0d56SLuca Coelho 433a399f980SJohannes Berg if (ieee80211_is_data(hdr->frame_control)) 434e705c121SKalle Valo iwl_mvm_rx_csum(sta, skb, rx_pkt_status); 435a399f980SJohannes Berg } 436e705c121SKalle Valo rcu_read_unlock(); 437e705c121SKalle Valo 438e705c121SKalle Valo /* set the preamble flag if appropriate */ 439e705c121SKalle Valo if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE)) 4407fdd69c5SJohannes Berg rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE; 441e705c121SKalle Valo 442e705c121SKalle Valo if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) { 443e705c121SKalle Valo /* 444e705c121SKalle Valo * We know which subframes of an A-MPDU belong 445e705c121SKalle Valo * together since we get a single PHY response 446e705c121SKalle Valo * from the firmware for all of them 447e705c121SKalle Valo */ 448e705c121SKalle Valo rx_status->flag |= RX_FLAG_AMPDU_DETAILS; 449e705c121SKalle Valo rx_status->ampdu_reference = mvm->ampdu_ref; 450e705c121SKalle Valo } 451e705c121SKalle Valo 452e705c121SKalle Valo /* Set up the HT phy flags */ 453e705c121SKalle Valo switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 454e705c121SKalle Valo case RATE_MCS_CHAN_WIDTH_20: 455e705c121SKalle Valo break; 456e705c121SKalle Valo case RATE_MCS_CHAN_WIDTH_40: 457da6a4352SJohannes Berg rx_status->bw = RATE_INFO_BW_40; 458e705c121SKalle Valo break; 459e705c121SKalle Valo case RATE_MCS_CHAN_WIDTH_80: 460da6a4352SJohannes Berg rx_status->bw = RATE_INFO_BW_80; 461e705c121SKalle Valo break; 462e705c121SKalle Valo case RATE_MCS_CHAN_WIDTH_160: 463da6a4352SJohannes Berg rx_status->bw = RATE_INFO_BW_160; 464e705c121SKalle Valo break; 465e705c121SKalle Valo } 4664c59ff5aSSara Sharon if (!(rate_n_flags & RATE_MCS_CCK_MSK) && 4674c59ff5aSSara Sharon rate_n_flags & RATE_MCS_SGI_MSK) 4687fdd69c5SJohannes Berg rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 469e705c121SKalle Valo if (rate_n_flags & RATE_HT_MCS_GF_MSK) 4707fdd69c5SJohannes Berg rx_status->enc_flags |= RX_ENC_FLAG_HT_GF; 471e705c121SKalle Valo if (rate_n_flags & RATE_MCS_LDPC_MSK) 4727fdd69c5SJohannes Berg rx_status->enc_flags |= RX_ENC_FLAG_LDPC; 473e705c121SKalle Valo if (rate_n_flags & RATE_MCS_HT_MSK) { 47477e40945SSara Sharon u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> 475e705c121SKalle Valo RATE_MCS_STBC_POS; 476da6a4352SJohannes Berg rx_status->encoding = RX_ENC_HT; 477e705c121SKalle Valo rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK; 4787fdd69c5SJohannes Berg rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT; 479e705c121SKalle Valo } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 48077e40945SSara Sharon u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> 481e705c121SKalle Valo RATE_MCS_STBC_POS; 4828613c948SJohannes Berg rx_status->nss = 483e705c121SKalle Valo ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> 484e705c121SKalle Valo RATE_VHT_MCS_NSS_POS) + 1; 485e705c121SKalle Valo rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK; 486da6a4352SJohannes Berg rx_status->encoding = RX_ENC_VHT; 4877fdd69c5SJohannes Berg rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT; 488e705c121SKalle Valo if (rate_n_flags & RATE_MCS_BF_MSK) 4897fdd69c5SJohannes Berg rx_status->enc_flags |= RX_ENC_FLAG_BF; 490e705c121SKalle Valo } else { 491cb2de6bbSSara Sharon int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, 492e705c121SKalle Valo rx_status->band); 493cb2de6bbSSara Sharon 494cb2de6bbSSara Sharon if (WARN(rate < 0 || rate > 0xFF, 495cb2de6bbSSara Sharon "Invalid rate flags 0x%x, band %d,\n", 496cb2de6bbSSara Sharon rate_n_flags, rx_status->band)) { 497cb2de6bbSSara Sharon kfree_skb(skb); 498cb2de6bbSSara Sharon return; 499cb2de6bbSSara Sharon } 500cb2de6bbSSara Sharon rx_status->rate_idx = rate; 501e705c121SKalle Valo } 502e705c121SKalle Valo 503e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 504e705c121SKalle Valo iwl_mvm_update_frame_stats(mvm, rate_n_flags, 505e705c121SKalle Valo rx_status->flag & RX_FLAG_AMPDU_DETAILS); 506e705c121SKalle Valo #endif 507a339e918SLuca Coelho 508a339e918SLuca Coelho if (unlikely((ieee80211_is_beacon(hdr->frame_control) || 509a339e918SLuca Coelho ieee80211_is_probe_resp(hdr->frame_control)) && 510a339e918SLuca Coelho mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)) 511a339e918SLuca Coelho mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND; 512a339e918SLuca Coelho 51343ec72b7SJohannes Berg if (unlikely(ieee80211_is_beacon(hdr->frame_control) || 51443ec72b7SJohannes Berg ieee80211_is_probe_resp(hdr->frame_control))) 5159285ec4cSJason A. Donenfeld rx_status->boottime_ns = ktime_get_boottime_ns(); 51643ec72b7SJohannes Berg 51743ec72b7SJohannes Berg iwl_mvm_pass_packet_to_mac80211(mvm, sta, napi, skb, hdr, len, 518bdbc58abSDan Carpenter crypt_len, rxb); 519e705c121SKalle Valo } 520e705c121SKalle Valo 521e705c121SKalle Valo struct iwl_mvm_stat_data { 522e705c121SKalle Valo struct iwl_mvm *mvm; 523290d5e49SMordechay Goodstein __le32 flags; 524e705c121SKalle Valo __le32 mac_id; 525e705c121SKalle Valo u8 beacon_filter_average_energy; 526853f4954SMordechay Goodstein __le32 *beacon_counter; 527853f4954SMordechay Goodstein u8 *beacon_average_energy; 528e705c121SKalle Valo }; 529e705c121SKalle Valo 530e705c121SKalle Valo static void iwl_mvm_stat_iterator(void *_data, u8 *mac, 531e705c121SKalle Valo struct ieee80211_vif *vif) 532e705c121SKalle Valo { 533e705c121SKalle Valo struct iwl_mvm_stat_data *data = _data; 534e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 535e705c121SKalle Valo int sig = -data->beacon_filter_average_energy; 536e705c121SKalle Valo int last_event; 537e705c121SKalle Valo int thold = vif->bss_conf.cqm_rssi_thold; 538e705c121SKalle Valo int hyst = vif->bss_conf.cqm_rssi_hyst; 539e705c121SKalle Valo u16 id = le32_to_cpu(data->mac_id); 540e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 54155ed14cdSEmmanuel Grumbach u16 vif_id = mvmvif->id; 542e705c121SKalle Valo 543e705c121SKalle Valo /* This doesn't need the MAC ID check since it's not taking the 544e705c121SKalle Valo * data copied into the "data" struct, but rather the data from 545e705c121SKalle Valo * the notification directly. 546e705c121SKalle Valo */ 547e705c121SKalle Valo mvmvif->beacon_stats.num_beacons = 548853f4954SMordechay Goodstein le32_to_cpu(data->beacon_counter[vif_id]); 549e705c121SKalle Valo mvmvif->beacon_stats.avg_signal = 550853f4954SMordechay Goodstein -data->beacon_average_energy[vif_id]; 551e705c121SKalle Valo 552290d5e49SMordechay Goodstein /* make sure that beacon statistics don't go backwards with TCM 553290d5e49SMordechay Goodstein * request to clear statistics 554290d5e49SMordechay Goodstein */ 555290d5e49SMordechay Goodstein if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 556290d5e49SMordechay Goodstein mvmvif->beacon_stats.accu_num_beacons += 557290d5e49SMordechay Goodstein mvmvif->beacon_stats.num_beacons; 558290d5e49SMordechay Goodstein 559e705c121SKalle Valo if (mvmvif->id != id) 560e705c121SKalle Valo return; 561e705c121SKalle Valo 562e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 563e705c121SKalle Valo return; 564e705c121SKalle Valo 565e705c121SKalle Valo if (sig == 0) { 566e705c121SKalle Valo IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n"); 567e705c121SKalle Valo return; 568e705c121SKalle Valo } 569e705c121SKalle Valo 570e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = sig; 571e705c121SKalle Valo 572e705c121SKalle Valo /* BT Coex */ 573e705c121SKalle Valo if (mvmvif->bf_data.bt_coex_min_thold != 574e705c121SKalle Valo mvmvif->bf_data.bt_coex_max_thold) { 575e705c121SKalle Valo last_event = mvmvif->bf_data.last_bt_coex_event; 576e705c121SKalle Valo if (sig > mvmvif->bf_data.bt_coex_max_thold && 577e705c121SKalle Valo (last_event <= mvmvif->bf_data.bt_coex_min_thold || 578e705c121SKalle Valo last_event == 0)) { 579e705c121SKalle Valo mvmvif->bf_data.last_bt_coex_event = sig; 580e705c121SKalle Valo IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n", 581e705c121SKalle Valo sig); 582e705c121SKalle Valo iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH); 583e705c121SKalle Valo } else if (sig < mvmvif->bf_data.bt_coex_min_thold && 584e705c121SKalle Valo (last_event >= mvmvif->bf_data.bt_coex_max_thold || 585e705c121SKalle Valo last_event == 0)) { 586e705c121SKalle Valo mvmvif->bf_data.last_bt_coex_event = sig; 587e705c121SKalle Valo IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n", 588e705c121SKalle Valo sig); 589e705c121SKalle Valo iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW); 590e705c121SKalle Valo } 591e705c121SKalle Valo } 592e705c121SKalle Valo 593e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 594e705c121SKalle Valo return; 595e705c121SKalle Valo 596e705c121SKalle Valo /* CQM Notification */ 597e705c121SKalle Valo last_event = mvmvif->bf_data.last_cqm_event; 598e705c121SKalle Valo if (thold && sig < thold && (last_event == 0 || 599e705c121SKalle Valo sig < last_event - hyst)) { 600e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = sig; 601e705c121SKalle Valo IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n", 602e705c121SKalle Valo sig); 603e705c121SKalle Valo ieee80211_cqm_rssi_notify( 604e705c121SKalle Valo vif, 605e705c121SKalle Valo NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, 606769f07d8SAndrzej Zaborowski sig, 607e705c121SKalle Valo GFP_KERNEL); 608e705c121SKalle Valo } else if (sig > thold && 609e705c121SKalle Valo (last_event == 0 || sig > last_event + hyst)) { 610e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = sig; 611e705c121SKalle Valo IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n", 612e705c121SKalle Valo sig); 613e705c121SKalle Valo ieee80211_cqm_rssi_notify( 614e705c121SKalle Valo vif, 615e705c121SKalle Valo NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, 616769f07d8SAndrzej Zaborowski sig, 617e705c121SKalle Valo GFP_KERNEL); 618e705c121SKalle Valo } 619e705c121SKalle Valo } 620e705c121SKalle Valo 621e705c121SKalle Valo static inline void 622e705c121SKalle Valo iwl_mvm_rx_stats_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) 623e705c121SKalle Valo { 624e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 625e705c121SKalle Valo struct iwl_fw_dbg_trigger_stats *trig_stats; 626e705c121SKalle Valo u32 trig_offset, trig_thold; 627e705c121SKalle Valo 6286c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, FW_DBG_TRIGGER_STATS); 6296c042d75SSara Sharon if (!trig) 630e705c121SKalle Valo return; 631e705c121SKalle Valo 632e705c121SKalle Valo trig_stats = (void *)trig->data; 633e705c121SKalle Valo 634e705c121SKalle Valo trig_offset = le32_to_cpu(trig_stats->stop_offset); 635e705c121SKalle Valo trig_thold = le32_to_cpu(trig_stats->stop_threshold); 636e705c121SKalle Valo 637e705c121SKalle Valo if (WARN_ON_ONCE(trig_offset >= iwl_rx_packet_payload_len(pkt))) 638e705c121SKalle Valo return; 639e705c121SKalle Valo 640e705c121SKalle Valo if (le32_to_cpup((__le32 *) (pkt->data + trig_offset)) < trig_thold) 641e705c121SKalle Valo return; 642e705c121SKalle Valo 6437174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, NULL); 644e705c121SKalle Valo } 645e705c121SKalle Valo 646c6bae216SMordechay Goodstein static void iwl_mvm_stats_energy_iter(void *_data, 647c6bae216SMordechay Goodstein struct ieee80211_sta *sta) 648853f4954SMordechay Goodstein { 649c6bae216SMordechay Goodstein struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 650c6bae216SMordechay Goodstein u8 *energy = _data; 651c6bae216SMordechay Goodstein u32 sta_id = mvmsta->sta_id; 652853f4954SMordechay Goodstein 653c6bae216SMordechay Goodstein if (WARN_ONCE(sta_id >= IWL_MVM_STATION_COUNT_MAX, "sta_id %d >= %d", 654c6bae216SMordechay Goodstein sta_id, IWL_MVM_STATION_COUNT_MAX)) 655853f4954SMordechay Goodstein return; 656853f4954SMordechay Goodstein 657c6bae216SMordechay Goodstein if (energy[sta_id]) 658c6bae216SMordechay Goodstein mvmsta->avg_energy = energy[sta_id]; 659853f4954SMordechay Goodstein 660853f4954SMordechay Goodstein } 661853f4954SMordechay Goodstein 662853f4954SMordechay Goodstein static void 663853f4954SMordechay Goodstein iwl_mvm_update_tcm_from_stats(struct iwl_mvm *mvm, __le32 *air_time_le, 664853f4954SMordechay Goodstein __le32 *rx_bytes_le) 665853f4954SMordechay Goodstein { 666853f4954SMordechay Goodstein int i; 667853f4954SMordechay Goodstein 668853f4954SMordechay Goodstein spin_lock(&mvm->tcm.lock); 669853f4954SMordechay Goodstein for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 670853f4954SMordechay Goodstein struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[i]; 671853f4954SMordechay Goodstein u32 rx_bytes = le32_to_cpu(rx_bytes_le[i]); 672853f4954SMordechay Goodstein u32 airtime = le32_to_cpu(air_time_le[i]); 673853f4954SMordechay Goodstein 674853f4954SMordechay Goodstein mdata->rx.airtime += airtime; 675853f4954SMordechay Goodstein mdata->uapsd_nonagg_detect.rx_bytes += rx_bytes; 676853f4954SMordechay Goodstein if (airtime) { 677853f4954SMordechay Goodstein /* re-init every time to store rate from FW */ 678853f4954SMordechay Goodstein ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 679853f4954SMordechay Goodstein ewma_rate_add(&mdata->uapsd_nonagg_detect.rate, 680853f4954SMordechay Goodstein rx_bytes * 8 / airtime); 681853f4954SMordechay Goodstein } 682853f4954SMordechay Goodstein } 683853f4954SMordechay Goodstein spin_unlock(&mvm->tcm.lock); 684853f4954SMordechay Goodstein } 685853f4954SMordechay Goodstein 686853f4954SMordechay Goodstein static void 687853f4954SMordechay Goodstein iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm, 688853f4954SMordechay Goodstein struct iwl_rx_packet *pkt) 689853f4954SMordechay Goodstein { 690853f4954SMordechay Goodstein struct iwl_mvm_stat_data data = { 691853f4954SMordechay Goodstein .mvm = mvm, 692853f4954SMordechay Goodstein }; 693853f4954SMordechay Goodstein u8 beacon_average_energy[MAC_INDEX_AUX]; 694853f4954SMordechay Goodstein u8 average_energy[IWL_MVM_STATION_COUNT_MAX]; 695853f4954SMordechay Goodstein struct iwl_statistics_operational_ntfy *stats; 696853f4954SMordechay Goodstein int expected_size; 697853f4954SMordechay Goodstein __le32 flags; 698853f4954SMordechay Goodstein int i; 699853f4954SMordechay Goodstein 700853f4954SMordechay Goodstein expected_size = sizeof(*stats); 701853f4954SMordechay Goodstein if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) < expected_size, 702853f4954SMordechay Goodstein "received invalid statistics size (%d)!, expected_size: %d\n", 703853f4954SMordechay Goodstein iwl_rx_packet_payload_len(pkt), expected_size)) 704853f4954SMordechay Goodstein return; 705853f4954SMordechay Goodstein 706853f4954SMordechay Goodstein stats = (void *)&pkt->data; 707853f4954SMordechay Goodstein 708853f4954SMordechay Goodstein if (WARN_ONCE(stats->hdr.type != FW_STATISTICS_OPERATIONAL || 709c0f46dcaSMordechay Goodstein stats->hdr.version != 710c0f46dcaSMordechay Goodstein iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, STATISTICS_CMD, 0), 711853f4954SMordechay Goodstein "received unsupported hdr type %d, version %d\n", 712853f4954SMordechay Goodstein stats->hdr.type, stats->hdr.version)) 713853f4954SMordechay Goodstein return; 714853f4954SMordechay Goodstein 715853f4954SMordechay Goodstein flags = stats->flags; 716853f4954SMordechay Goodstein mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time); 717853f4954SMordechay Goodstein mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time); 718853f4954SMordechay Goodstein mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf); 719853f4954SMordechay Goodstein mvm->radio_stats.on_time_scan = le64_to_cpu(stats->on_time_scan); 720853f4954SMordechay Goodstein 721853f4954SMordechay Goodstein iwl_mvm_rx_stats_check_trigger(mvm, pkt); 722853f4954SMordechay Goodstein 723853f4954SMordechay Goodstein data.mac_id = stats->mac_id; 724853f4954SMordechay Goodstein data.beacon_filter_average_energy = 725853f4954SMordechay Goodstein le32_to_cpu(stats->beacon_filter_average_energy); 726853f4954SMordechay Goodstein data.flags = flags; 727853f4954SMordechay Goodstein data.beacon_counter = stats->beacon_counter; 728853f4954SMordechay Goodstein for (i = 0; i < ARRAY_SIZE(beacon_average_energy); i++) 729853f4954SMordechay Goodstein beacon_average_energy[i] = 730853f4954SMordechay Goodstein le32_to_cpu(stats->beacon_average_energy[i]); 731853f4954SMordechay Goodstein 732853f4954SMordechay Goodstein data.beacon_average_energy = beacon_average_energy; 733853f4954SMordechay Goodstein 734853f4954SMordechay Goodstein ieee80211_iterate_active_interfaces(mvm->hw, 735853f4954SMordechay Goodstein IEEE80211_IFACE_ITER_NORMAL, 736853f4954SMordechay Goodstein iwl_mvm_stat_iterator, 737853f4954SMordechay Goodstein &data); 738853f4954SMordechay Goodstein 739853f4954SMordechay Goodstein for (i = 0; i < ARRAY_SIZE(average_energy); i++) 740853f4954SMordechay Goodstein average_energy[i] = le32_to_cpu(stats->average_energy[i]); 741c6bae216SMordechay Goodstein ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, 742c6bae216SMordechay Goodstein average_energy); 743853f4954SMordechay Goodstein /* 744853f4954SMordechay Goodstein * Don't update in case the statistics are not cleared, since 745853f4954SMordechay Goodstein * we will end up counting twice the same airtime, once in TCM 746853f4954SMordechay Goodstein * request and once in statistics notification. 747853f4954SMordechay Goodstein */ 748853f4954SMordechay Goodstein if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 749853f4954SMordechay Goodstein iwl_mvm_update_tcm_from_stats(mvm, stats->air_time, 750853f4954SMordechay Goodstein stats->rx_bytes); 751853f4954SMordechay Goodstein } 752853f4954SMordechay Goodstein 753e705c121SKalle Valo void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm, 754e705c121SKalle Valo struct iwl_rx_packet *pkt) 755e705c121SKalle Valo { 756e705c121SKalle Valo struct iwl_mvm_stat_data data = { 757e705c121SKalle Valo .mvm = mvm, 758e705c121SKalle Valo }; 759853f4954SMordechay Goodstein __le32 *bytes, *air_time, flags; 7600e7ac018SSara Sharon int expected_size; 761cfbeb598SGoodstein, Mordechay u8 *energy; 762853f4954SMordechay Goodstein 763853f4954SMordechay Goodstein /* From ver 14 and up we use TLV statistics format */ 764853f4954SMordechay Goodstein if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 765853f4954SMordechay Goodstein STATISTICS_CMD, 0) >= 14) 766853f4954SMordechay Goodstein return iwl_mvm_handle_rx_statistics_tlv(mvm, pkt); 7670e7ac018SSara Sharon 768678d9b6dSLiad Kaufman if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 769678d9b6dSLiad Kaufman if (iwl_mvm_has_new_rx_api(mvm)) 7700e7ac018SSara Sharon expected_size = sizeof(struct iwl_notif_statistics_v11); 7710e7ac018SSara Sharon else 7720e7ac018SSara Sharon expected_size = sizeof(struct iwl_notif_statistics_v10); 773678d9b6dSLiad Kaufman } else { 774606b9ab6SEmmanuel Grumbach expected_size = sizeof(struct iwl_notif_statistics); 775678d9b6dSLiad Kaufman } 776e705c121SKalle Valo 77742fa5e0eSJohannes Berg if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) != expected_size, 77842fa5e0eSJohannes Berg "received invalid statistics size (%d)!\n", 77942fa5e0eSJohannes Berg iwl_rx_packet_payload_len(pkt))) 7806a90f85aSLuca Coelho return; 781e705c121SKalle Valo 782678d9b6dSLiad Kaufman if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 783678d9b6dSLiad Kaufman struct iwl_notif_statistics_v11 *stats = (void *)&pkt->data; 784678d9b6dSLiad Kaufman 785e705c121SKalle Valo data.mac_id = stats->rx.general.mac_id; 786e705c121SKalle Valo data.beacon_filter_average_energy = 7870e7ac018SSara Sharon stats->general.common.beacon_filter_average_energy; 788e705c121SKalle Valo 789678d9b6dSLiad Kaufman mvm->rx_stats_v3 = stats->rx; 790e705c121SKalle Valo 791678d9b6dSLiad Kaufman mvm->radio_stats.rx_time = 792678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.rx_time); 793678d9b6dSLiad Kaufman mvm->radio_stats.tx_time = 794678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.tx_time); 795e705c121SKalle Valo mvm->radio_stats.on_time_rf = 7960e7ac018SSara Sharon le64_to_cpu(stats->general.common.on_time_rf); 797e705c121SKalle Valo mvm->radio_stats.on_time_scan = 7980e7ac018SSara Sharon le64_to_cpu(stats->general.common.on_time_scan); 799e705c121SKalle Valo 800853f4954SMordechay Goodstein data.beacon_counter = stats->general.beacon_counter; 801853f4954SMordechay Goodstein data.beacon_average_energy = 802853f4954SMordechay Goodstein stats->general.beacon_average_energy; 803678d9b6dSLiad Kaufman flags = stats->flag; 804678d9b6dSLiad Kaufman } else { 805606b9ab6SEmmanuel Grumbach struct iwl_notif_statistics *stats = (void *)&pkt->data; 806678d9b6dSLiad Kaufman 807678d9b6dSLiad Kaufman data.mac_id = stats->rx.general.mac_id; 808678d9b6dSLiad Kaufman data.beacon_filter_average_energy = 809678d9b6dSLiad Kaufman stats->general.common.beacon_filter_average_energy; 810678d9b6dSLiad Kaufman 811678d9b6dSLiad Kaufman mvm->rx_stats = stats->rx; 812678d9b6dSLiad Kaufman 813678d9b6dSLiad Kaufman mvm->radio_stats.rx_time = 814678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.rx_time); 815678d9b6dSLiad Kaufman mvm->radio_stats.tx_time = 816678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.tx_time); 817678d9b6dSLiad Kaufman mvm->radio_stats.on_time_rf = 818678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.on_time_rf); 819678d9b6dSLiad Kaufman mvm->radio_stats.on_time_scan = 820678d9b6dSLiad Kaufman le64_to_cpu(stats->general.common.on_time_scan); 821678d9b6dSLiad Kaufman 822853f4954SMordechay Goodstein data.beacon_counter = stats->general.beacon_counter; 823853f4954SMordechay Goodstein data.beacon_average_energy = 824853f4954SMordechay Goodstein stats->general.beacon_average_energy; 825678d9b6dSLiad Kaufman flags = stats->flag; 826678d9b6dSLiad Kaufman } 827290d5e49SMordechay Goodstein data.flags = flags; 828678d9b6dSLiad Kaufman 829cfbeb598SGoodstein, Mordechay iwl_mvm_rx_stats_check_trigger(mvm, pkt); 830cfbeb598SGoodstein, Mordechay 831cfbeb598SGoodstein, Mordechay ieee80211_iterate_active_interfaces(mvm->hw, 832cfbeb598SGoodstein, Mordechay IEEE80211_IFACE_ITER_NORMAL, 833cfbeb598SGoodstein, Mordechay iwl_mvm_stat_iterator, 834cfbeb598SGoodstein, Mordechay &data); 835cfbeb598SGoodstein, Mordechay 836cfbeb598SGoodstein, Mordechay if (!iwl_mvm_has_new_rx_api(mvm)) 837cfbeb598SGoodstein, Mordechay return; 838988b5968SSara Sharon 839678d9b6dSLiad Kaufman if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 840678d9b6dSLiad Kaufman struct iwl_notif_statistics_v11 *v11 = (void *)&pkt->data; 8410e7ac018SSara Sharon 8420e7ac018SSara Sharon energy = (void *)&v11->load_stats.avg_energy; 843b0ffe455SJohannes Berg bytes = (void *)&v11->load_stats.byte_count; 8440e7ac018SSara Sharon air_time = (void *)&v11->load_stats.air_time; 8450e7ac018SSara Sharon } else { 846606b9ab6SEmmanuel Grumbach struct iwl_notif_statistics *stats = (void *)&pkt->data; 847678d9b6dSLiad Kaufman 8480e7ac018SSara Sharon energy = (void *)&stats->load_stats.avg_energy; 849b0ffe455SJohannes Berg bytes = (void *)&stats->load_stats.byte_count; 8500e7ac018SSara Sharon air_time = (void *)&stats->load_stats.air_time; 8510e7ac018SSara Sharon } 852c6bae216SMordechay Goodstein ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, 853c6bae216SMordechay Goodstein energy); 8547d9d0d56SLuca Coelho 8557d9d0d56SLuca Coelho /* 8567d9d0d56SLuca Coelho * Don't update in case the statistics are not cleared, since 8577d9d0d56SLuca Coelho * we will end up counting twice the same airtime, once in TCM 8587d9d0d56SLuca Coelho * request and once in statistics notification. 8597d9d0d56SLuca Coelho */ 860853f4954SMordechay Goodstein if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 861853f4954SMordechay Goodstein iwl_mvm_update_tcm_from_stats(mvm, air_time, bytes); 8627d9d0d56SLuca Coelho 863e705c121SKalle Valo } 864e705c121SKalle Valo 865e705c121SKalle Valo void iwl_mvm_rx_statistics(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 866e705c121SKalle Valo { 867e705c121SKalle Valo iwl_mvm_handle_rx_statistics(mvm, rxb_addr(rxb)); 868e705c121SKalle Valo } 8693af512d6SSara Sharon 8703af512d6SSara Sharon void iwl_mvm_window_status_notif(struct iwl_mvm *mvm, 8713af512d6SSara Sharon struct iwl_rx_cmd_buffer *rxb) 8723af512d6SSara Sharon { 8733af512d6SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 8743af512d6SSara Sharon struct iwl_ba_window_status_notif *notif = (void *)pkt->data; 8753af512d6SSara Sharon int i; 8763af512d6SSara Sharon 877afc857bcSJohannes Berg BUILD_BUG_ON(ARRAY_SIZE(notif->ra_tid) != BA_WINDOW_STREAMS_MAX); 878afc857bcSJohannes Berg BUILD_BUG_ON(ARRAY_SIZE(notif->mpdu_rx_count) != BA_WINDOW_STREAMS_MAX); 879afc857bcSJohannes Berg BUILD_BUG_ON(ARRAY_SIZE(notif->bitmap) != BA_WINDOW_STREAMS_MAX); 880afc857bcSJohannes Berg BUILD_BUG_ON(ARRAY_SIZE(notif->start_seq_num) != BA_WINDOW_STREAMS_MAX); 8813af512d6SSara Sharon 8823af512d6SSara Sharon rcu_read_lock(); 8833af512d6SSara Sharon for (i = 0; i < BA_WINDOW_STREAMS_MAX; i++) { 8843af512d6SSara Sharon struct ieee80211_sta *sta; 8853af512d6SSara Sharon u8 sta_id, tid; 8863af512d6SSara Sharon u64 bitmap; 8873af512d6SSara Sharon u32 ssn; 8883af512d6SSara Sharon u16 ratid; 8893af512d6SSara Sharon u16 received_mpdu; 8903af512d6SSara Sharon 8913af512d6SSara Sharon ratid = le16_to_cpu(notif->ra_tid[i]); 8923af512d6SSara Sharon /* check that this TID is valid */ 8933af512d6SSara Sharon if (!(ratid & BA_WINDOW_STATUS_VALID_MSK)) 8943af512d6SSara Sharon continue; 8953af512d6SSara Sharon 8963af512d6SSara Sharon received_mpdu = le16_to_cpu(notif->mpdu_rx_count[i]); 8973af512d6SSara Sharon if (received_mpdu == 0) 8983af512d6SSara Sharon continue; 8993af512d6SSara Sharon 9003af512d6SSara Sharon tid = ratid & BA_WINDOW_STATUS_TID_MSK; 9013af512d6SSara Sharon /* get the station */ 9023af512d6SSara Sharon sta_id = (ratid & BA_WINDOW_STATUS_STA_ID_MSK) 9033af512d6SSara Sharon >> BA_WINDOW_STATUS_STA_ID_POS; 9043af512d6SSara Sharon sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 9053af512d6SSara Sharon if (IS_ERR_OR_NULL(sta)) 9063af512d6SSara Sharon continue; 9073af512d6SSara Sharon bitmap = le64_to_cpu(notif->bitmap[i]); 9083af512d6SSara Sharon ssn = le32_to_cpu(notif->start_seq_num[i]); 9093af512d6SSara Sharon 9103af512d6SSara Sharon /* update mac80211 with the bitmap for the reordering buffer */ 9113af512d6SSara Sharon ieee80211_mark_rx_ba_filtered_frames(sta, tid, ssn, bitmap, 9123af512d6SSara Sharon received_mpdu); 9133af512d6SSara Sharon } 9143af512d6SSara Sharon rcu_read_unlock(); 9153af512d6SSara Sharon } 916