/* $OpenBSD: if_iwm.c,v 1.391 2022/02/08 14:24:36 stsp Exp $ */ /* * Copyright (c) 2014, 2016 genua gmbh * Author: Stefan Sperling * Copyright (c) 2014 Fixup Software Ltd. * Copyright (c) 2017 Stefan Sperling * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Based on BSD-licensed source modules in the Linux iwlwifi driver, * which were used as the reference documentation for this implementation. * *********************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, * USA * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * * BSD LICENSE * * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 Intel Deutschland GmbH * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 2007-2010 Damien Bergamini * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include #include #include /* for SEQ_LT */ #undef DPRINTF /* defined in ieee80211_priv.h */ #define DEVNAME(_s) ((_s)->sc_dev.dv_xname) #define IC2IFP(_ic_) (&(_ic_)->ic_if) #define le16_to_cpup(_a_) (le16toh(*(const uint16_t *)(_a_))) #define le32_to_cpup(_a_) (le32toh(*(const uint32_t *)(_a_))) #ifdef IWM_DEBUG #define DPRINTF(x) do { if (iwm_debug > 0) printf x; } while (0) #define DPRINTFN(n, x) do { if (iwm_debug >= (n)) printf x; } while (0) int iwm_debug = 1; #else #define DPRINTF(x) do { ; } while (0) #define DPRINTFN(n, x) do { ; } while (0) #endif #include #include const uint8_t iwm_nvm_channels[] = { /* 2.4 GHz */ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /* 5 GHz */ 36, 40, 44 , 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165 }; const uint8_t iwm_nvm_channels_8000[] = { /* 2.4 GHz */ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /* 5 GHz */ 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165, 169, 173, 177, 181 }; #define IWM_NUM_2GHZ_CHANNELS 14 const struct iwm_rate { uint16_t rate; uint8_t plcp; uint8_t ht_plcp; } iwm_rates[] = { /* Legacy */ /* HT */ { 2, IWM_RATE_1M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP }, { 4, IWM_RATE_2M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP }, { 11, IWM_RATE_5M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP }, { 22, IWM_RATE_11M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP }, { 12, IWM_RATE_6M_PLCP, IWM_RATE_HT_SISO_MCS_0_PLCP }, { 18, IWM_RATE_9M_PLCP, IWM_RATE_HT_SISO_MCS_INV_PLCP }, { 24, IWM_RATE_12M_PLCP, IWM_RATE_HT_SISO_MCS_1_PLCP }, { 26, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_8_PLCP }, { 36, IWM_RATE_18M_PLCP, IWM_RATE_HT_SISO_MCS_2_PLCP }, { 48, IWM_RATE_24M_PLCP, IWM_RATE_HT_SISO_MCS_3_PLCP }, { 52, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_9_PLCP }, { 72, IWM_RATE_36M_PLCP, IWM_RATE_HT_SISO_MCS_4_PLCP }, { 78, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_10_PLCP }, { 96, IWM_RATE_48M_PLCP, IWM_RATE_HT_SISO_MCS_5_PLCP }, { 104, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_11_PLCP }, { 108, IWM_RATE_54M_PLCP, IWM_RATE_HT_SISO_MCS_6_PLCP }, { 128, IWM_RATE_INVM_PLCP, IWM_RATE_HT_SISO_MCS_7_PLCP }, { 156, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_12_PLCP }, { 208, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_13_PLCP }, { 234, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_14_PLCP }, { 260, IWM_RATE_INVM_PLCP, IWM_RATE_HT_MIMO2_MCS_15_PLCP }, }; #define IWM_RIDX_CCK 0 #define IWM_RIDX_OFDM 4 #define IWM_RIDX_MAX (nitems(iwm_rates)-1) #define IWM_RIDX_IS_CCK(_i_) ((_i_) < IWM_RIDX_OFDM) #define IWM_RIDX_IS_OFDM(_i_) ((_i_) >= IWM_RIDX_OFDM) #define IWM_RVAL_IS_OFDM(_i_) ((_i_) >= 12 && (_i_) != 22) /* Convert an MCS index into an iwm_rates[] index. */ const int iwm_mcs2ridx[] = { IWM_RATE_MCS_0_INDEX, IWM_RATE_MCS_1_INDEX, IWM_RATE_MCS_2_INDEX, IWM_RATE_MCS_3_INDEX, IWM_RATE_MCS_4_INDEX, IWM_RATE_MCS_5_INDEX, IWM_RATE_MCS_6_INDEX, IWM_RATE_MCS_7_INDEX, IWM_RATE_MCS_8_INDEX, IWM_RATE_MCS_9_INDEX, IWM_RATE_MCS_10_INDEX, IWM_RATE_MCS_11_INDEX, IWM_RATE_MCS_12_INDEX, IWM_RATE_MCS_13_INDEX, IWM_RATE_MCS_14_INDEX, IWM_RATE_MCS_15_INDEX, }; struct iwm_nvm_section { uint16_t length; uint8_t *data; }; int iwm_is_mimo_ht_plcp(uint8_t); int iwm_is_mimo_mcs(int); int iwm_store_cscheme(struct iwm_softc *, uint8_t *, size_t); int iwm_firmware_store_section(struct iwm_softc *, enum iwm_ucode_type, uint8_t *, size_t); int iwm_set_default_calib(struct iwm_softc *, const void *); void iwm_fw_info_free(struct iwm_fw_info *); void iwm_fw_version_str(char *, size_t, uint32_t, uint32_t, uint32_t); int iwm_read_firmware(struct iwm_softc *); uint32_t iwm_read_prph_unlocked(struct iwm_softc *, uint32_t); uint32_t iwm_read_prph(struct iwm_softc *, uint32_t); void iwm_write_prph_unlocked(struct iwm_softc *, uint32_t, uint32_t); void iwm_write_prph(struct iwm_softc *, uint32_t, uint32_t); int iwm_read_mem(struct iwm_softc *, uint32_t, void *, int); int iwm_write_mem(struct iwm_softc *, uint32_t, const void *, int); int iwm_write_mem32(struct iwm_softc *, uint32_t, uint32_t); int iwm_poll_bit(struct iwm_softc *, int, uint32_t, uint32_t, int); int iwm_nic_lock(struct iwm_softc *); void iwm_nic_assert_locked(struct iwm_softc *); void iwm_nic_unlock(struct iwm_softc *); int iwm_set_bits_mask_prph(struct iwm_softc *, uint32_t, uint32_t, uint32_t); int iwm_set_bits_prph(struct iwm_softc *, uint32_t, uint32_t); int iwm_clear_bits_prph(struct iwm_softc *, uint32_t, uint32_t); int iwm_dma_contig_alloc(bus_dma_tag_t, struct iwm_dma_info *, bus_size_t, bus_size_t); void iwm_dma_contig_free(struct iwm_dma_info *); int iwm_alloc_rx_ring(struct iwm_softc *, struct iwm_rx_ring *); void iwm_disable_rx_dma(struct iwm_softc *); void iwm_reset_rx_ring(struct iwm_softc *, struct iwm_rx_ring *); void iwm_free_rx_ring(struct iwm_softc *, struct iwm_rx_ring *); int iwm_alloc_tx_ring(struct iwm_softc *, struct iwm_tx_ring *, int); void iwm_reset_tx_ring(struct iwm_softc *, struct iwm_tx_ring *); void iwm_free_tx_ring(struct iwm_softc *, struct iwm_tx_ring *); void iwm_enable_rfkill_int(struct iwm_softc *); int iwm_check_rfkill(struct iwm_softc *); void iwm_enable_interrupts(struct iwm_softc *); void iwm_enable_fwload_interrupt(struct iwm_softc *); void iwm_restore_interrupts(struct iwm_softc *); void iwm_disable_interrupts(struct iwm_softc *); void iwm_ict_reset(struct iwm_softc *); int iwm_set_hw_ready(struct iwm_softc *); int iwm_prepare_card_hw(struct iwm_softc *); void iwm_apm_config(struct iwm_softc *); int iwm_apm_init(struct iwm_softc *); void iwm_apm_stop(struct iwm_softc *); int iwm_allow_mcast(struct iwm_softc *); void iwm_init_msix_hw(struct iwm_softc *); void iwm_conf_msix_hw(struct iwm_softc *, int); int iwm_clear_persistence_bit(struct iwm_softc *); int iwm_start_hw(struct iwm_softc *); void iwm_stop_device(struct iwm_softc *); void iwm_nic_config(struct iwm_softc *); int iwm_nic_rx_init(struct iwm_softc *); int iwm_nic_rx_legacy_init(struct iwm_softc *); int iwm_nic_rx_mq_init(struct iwm_softc *); int iwm_nic_tx_init(struct iwm_softc *); int iwm_nic_init(struct iwm_softc *); int iwm_enable_ac_txq(struct iwm_softc *, int, int); int iwm_enable_txq(struct iwm_softc *, int, int, int, int, uint8_t, uint16_t); int iwm_disable_txq(struct iwm_softc *, int, int, uint8_t); int iwm_post_alive(struct iwm_softc *); struct iwm_phy_db_entry *iwm_phy_db_get_section(struct iwm_softc *, uint16_t, uint16_t); int iwm_phy_db_set_section(struct iwm_softc *, struct iwm_calib_res_notif_phy_db *); int iwm_is_valid_channel(uint16_t); uint8_t iwm_ch_id_to_ch_index(uint16_t); uint16_t iwm_channel_id_to_papd(uint16_t); uint16_t iwm_channel_id_to_txp(struct iwm_softc *, uint16_t); int iwm_phy_db_get_section_data(struct iwm_softc *, uint32_t, uint8_t **, uint16_t *, uint16_t); int iwm_send_phy_db_cmd(struct iwm_softc *, uint16_t, uint16_t, void *); int iwm_phy_db_send_all_channel_groups(struct iwm_softc *, uint16_t, uint8_t); int iwm_send_phy_db_data(struct iwm_softc *); void iwm_protect_session(struct iwm_softc *, struct iwm_node *, uint32_t, uint32_t); void iwm_unprotect_session(struct iwm_softc *, struct iwm_node *); int iwm_nvm_read_chunk(struct iwm_softc *, uint16_t, uint16_t, uint16_t, uint8_t *, uint16_t *); int iwm_nvm_read_section(struct iwm_softc *, uint16_t, uint8_t *, uint16_t *, size_t); void iwm_init_channel_map(struct iwm_softc *, const uint16_t * const, const uint8_t *nvm_channels, int nchan); int iwm_mimo_enabled(struct iwm_softc *); void iwm_setup_ht_rates(struct iwm_softc *); void iwm_mac_ctxt_task(void *); void iwm_phy_ctxt_task(void *); void iwm_updateprot(struct ieee80211com *); void iwm_updateslot(struct ieee80211com *); void iwm_updateedca(struct ieee80211com *); void iwm_updatechan(struct ieee80211com *); void iwm_updatedtim(struct ieee80211com *); void iwm_init_reorder_buffer(struct iwm_reorder_buffer *, uint16_t, uint16_t); void iwm_clear_reorder_buffer(struct iwm_softc *, struct iwm_rxba_data *); int iwm_ampdu_rx_start(struct ieee80211com *, struct ieee80211_node *, uint8_t); void iwm_ampdu_rx_stop(struct ieee80211com *, struct ieee80211_node *, uint8_t); void iwm_rx_ba_session_expired(void *); void iwm_reorder_timer_expired(void *); int iwm_sta_rx_agg(struct iwm_softc *, struct ieee80211_node *, uint8_t, uint16_t, uint16_t, int, int); int iwm_ampdu_tx_start(struct ieee80211com *, struct ieee80211_node *, uint8_t); void iwm_ampdu_tx_stop(struct ieee80211com *, struct ieee80211_node *, uint8_t); void iwm_ba_task(void *); int iwm_parse_nvm_data(struct iwm_softc *, const uint16_t *, const uint16_t *, const uint16_t *, const uint16_t *, const uint16_t *, const uint16_t *, int); void iwm_set_hw_address_8000(struct iwm_softc *, struct iwm_nvm_data *, const uint16_t *, const uint16_t *); int iwm_parse_nvm_sections(struct iwm_softc *, struct iwm_nvm_section *); int iwm_nvm_init(struct iwm_softc *); int iwm_firmware_load_sect(struct iwm_softc *, uint32_t, const uint8_t *, uint32_t); int iwm_firmware_load_chunk(struct iwm_softc *, uint32_t, const uint8_t *, uint32_t); int iwm_load_firmware_7000(struct iwm_softc *, enum iwm_ucode_type); int iwm_load_cpu_sections_8000(struct iwm_softc *, struct iwm_fw_sects *, int , int *); int iwm_load_firmware_8000(struct iwm_softc *, enum iwm_ucode_type); int iwm_load_firmware(struct iwm_softc *, enum iwm_ucode_type); int iwm_start_fw(struct iwm_softc *, enum iwm_ucode_type); int iwm_send_tx_ant_cfg(struct iwm_softc *, uint8_t); int iwm_send_phy_cfg_cmd(struct iwm_softc *); int iwm_load_ucode_wait_alive(struct iwm_softc *, enum iwm_ucode_type); int iwm_send_dqa_cmd(struct iwm_softc *); int iwm_run_init_mvm_ucode(struct iwm_softc *, int); int iwm_config_ltr(struct iwm_softc *); int iwm_rx_addbuf(struct iwm_softc *, int, int); int iwm_get_signal_strength(struct iwm_softc *, struct iwm_rx_phy_info *); int iwm_rxmq_get_signal_strength(struct iwm_softc *, struct iwm_rx_mpdu_desc *); void iwm_rx_rx_phy_cmd(struct iwm_softc *, struct iwm_rx_packet *, struct iwm_rx_data *); int iwm_get_noise(const struct iwm_statistics_rx_non_phy *); int iwm_rx_hwdecrypt(struct iwm_softc *, struct mbuf *, uint32_t, struct ieee80211_rxinfo *); int iwm_ccmp_decap(struct iwm_softc *, struct mbuf *, struct ieee80211_node *, struct ieee80211_rxinfo *); void iwm_rx_frame(struct iwm_softc *, struct mbuf *, int, uint32_t, int, int, uint32_t, struct ieee80211_rxinfo *, struct mbuf_list *); void iwm_ht_single_rate_control(struct iwm_softc *, struct ieee80211_node *, int, uint8_t, int); void iwm_rx_tx_cmd_single(struct iwm_softc *, struct iwm_rx_packet *, struct iwm_node *, int, int); void iwm_txd_done(struct iwm_softc *, struct iwm_tx_data *); void iwm_txq_advance(struct iwm_softc *, struct iwm_tx_ring *, int); void iwm_rx_tx_cmd(struct iwm_softc *, struct iwm_rx_packet *, struct iwm_rx_data *); void iwm_clear_oactive(struct iwm_softc *, struct iwm_tx_ring *); void iwm_ampdu_rate_control(struct iwm_softc *, struct ieee80211_node *, struct iwm_tx_ring *, int, uint16_t, uint16_t); void iwm_rx_compressed_ba(struct iwm_softc *, struct iwm_rx_packet *); void iwm_rx_bmiss(struct iwm_softc *, struct iwm_rx_packet *, struct iwm_rx_data *); int iwm_binding_cmd(struct iwm_softc *, struct iwm_node *, uint32_t); int iwm_phy_ctxt_cmd_uhb(struct iwm_softc *, struct iwm_phy_ctxt *, uint8_t, uint8_t, uint32_t, uint32_t, uint8_t); void iwm_phy_ctxt_cmd_hdr(struct iwm_softc *, struct iwm_phy_ctxt *, struct iwm_phy_context_cmd *, uint32_t, uint32_t); void iwm_phy_ctxt_cmd_data(struct iwm_softc *, struct iwm_phy_context_cmd *, struct ieee80211_channel *, uint8_t, uint8_t, uint8_t); int iwm_phy_ctxt_cmd(struct iwm_softc *, struct iwm_phy_ctxt *, uint8_t, uint8_t, uint32_t, uint32_t, uint8_t); int iwm_send_cmd(struct iwm_softc *, struct iwm_host_cmd *); int iwm_send_cmd_pdu(struct iwm_softc *, uint32_t, uint32_t, uint16_t, const void *); int iwm_send_cmd_status(struct iwm_softc *, struct iwm_host_cmd *, uint32_t *); int iwm_send_cmd_pdu_status(struct iwm_softc *, uint32_t, uint16_t, const void *, uint32_t *); void iwm_free_resp(struct iwm_softc *, struct iwm_host_cmd *); void iwm_cmd_done(struct iwm_softc *, int, int, int); void iwm_update_sched(struct iwm_softc *, int, int, uint8_t, uint16_t); void iwm_reset_sched(struct iwm_softc *, int, int, uint8_t); const struct iwm_rate *iwm_tx_fill_cmd(struct iwm_softc *, struct iwm_node *, struct ieee80211_frame *, struct iwm_tx_cmd *); int iwm_tx(struct iwm_softc *, struct mbuf *, struct ieee80211_node *, int); int iwm_flush_tx_path(struct iwm_softc *, int); int iwm_wait_tx_queues_empty(struct iwm_softc *); void iwm_led_enable(struct iwm_softc *); void iwm_led_disable(struct iwm_softc *); int iwm_led_is_enabled(struct iwm_softc *); void iwm_led_blink_timeout(void *); void iwm_led_blink_start(struct iwm_softc *); void iwm_led_blink_stop(struct iwm_softc *); int iwm_beacon_filter_send_cmd(struct iwm_softc *, struct iwm_beacon_filter_cmd *); void iwm_beacon_filter_set_cqm_params(struct iwm_softc *, struct iwm_node *, struct iwm_beacon_filter_cmd *); int iwm_update_beacon_abort(struct iwm_softc *, struct iwm_node *, int); void iwm_power_build_cmd(struct iwm_softc *, struct iwm_node *, struct iwm_mac_power_cmd *); int iwm_power_mac_update_mode(struct iwm_softc *, struct iwm_node *); int iwm_power_update_device(struct iwm_softc *); int iwm_enable_beacon_filter(struct iwm_softc *, struct iwm_node *); int iwm_disable_beacon_filter(struct iwm_softc *); int iwm_add_sta_cmd(struct iwm_softc *, struct iwm_node *, int); int iwm_add_aux_sta(struct iwm_softc *); int iwm_drain_sta(struct iwm_softc *sc, struct iwm_node *, int); int iwm_flush_sta(struct iwm_softc *, struct iwm_node *); int iwm_rm_sta_cmd(struct iwm_softc *, struct iwm_node *); uint16_t iwm_scan_rx_chain(struct iwm_softc *); uint32_t iwm_scan_rate_n_flags(struct iwm_softc *, int, int); uint8_t iwm_lmac_scan_fill_channels(struct iwm_softc *, struct iwm_scan_channel_cfg_lmac *, int, int); int iwm_fill_probe_req(struct iwm_softc *, struct iwm_scan_probe_req *); int iwm_lmac_scan(struct iwm_softc *, int); int iwm_config_umac_scan(struct iwm_softc *); int iwm_umac_scan(struct iwm_softc *, int); void iwm_mcc_update(struct iwm_softc *, struct iwm_mcc_chub_notif *); uint8_t iwm_ridx2rate(struct ieee80211_rateset *, int); int iwm_rval2ridx(int); void iwm_ack_rates(struct iwm_softc *, struct iwm_node *, int *, int *); void iwm_mac_ctxt_cmd_common(struct iwm_softc *, struct iwm_node *, struct iwm_mac_ctx_cmd *, uint32_t); void iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc *, struct iwm_node *, struct iwm_mac_data_sta *, int); int iwm_mac_ctxt_cmd(struct iwm_softc *, struct iwm_node *, uint32_t, int); int iwm_update_quotas(struct iwm_softc *, struct iwm_node *, int); void iwm_add_task(struct iwm_softc *, struct taskq *, struct task *); void iwm_del_task(struct iwm_softc *, struct taskq *, struct task *); int iwm_scan(struct iwm_softc *); int iwm_bgscan(struct ieee80211com *); void iwm_bgscan_done(struct ieee80211com *, struct ieee80211_node_switch_bss_arg *, size_t); void iwm_bgscan_done_task(void *); int iwm_umac_scan_abort(struct iwm_softc *); int iwm_lmac_scan_abort(struct iwm_softc *); int iwm_scan_abort(struct iwm_softc *); int iwm_phy_ctxt_update(struct iwm_softc *, struct iwm_phy_ctxt *, struct ieee80211_channel *, uint8_t, uint8_t, uint32_t, uint8_t); int iwm_auth(struct iwm_softc *); int iwm_deauth(struct iwm_softc *); int iwm_run(struct iwm_softc *); int iwm_run_stop(struct iwm_softc *); struct ieee80211_node *iwm_node_alloc(struct ieee80211com *); int iwm_set_key_v1(struct ieee80211com *, struct ieee80211_node *, struct ieee80211_key *); int iwm_set_key(struct ieee80211com *, struct ieee80211_node *, struct ieee80211_key *); void iwm_delete_key_v1(struct ieee80211com *, struct ieee80211_node *, struct ieee80211_key *); void iwm_delete_key(struct ieee80211com *, struct ieee80211_node *, struct ieee80211_key *); void iwm_calib_timeout(void *); void iwm_setrates(struct iwm_node *, int); int iwm_media_change(struct ifnet *); void iwm_newstate_task(void *); int iwm_newstate(struct ieee80211com *, enum ieee80211_state, int); void iwm_endscan(struct iwm_softc *); void iwm_fill_sf_command(struct iwm_softc *, struct iwm_sf_cfg_cmd *, struct ieee80211_node *); int iwm_sf_config(struct iwm_softc *, int); int iwm_send_bt_init_conf(struct iwm_softc *); int iwm_send_soc_conf(struct iwm_softc *); int iwm_send_update_mcc_cmd(struct iwm_softc *, const char *); int iwm_send_temp_report_ths_cmd(struct iwm_softc *); void iwm_tt_tx_backoff(struct iwm_softc *, uint32_t); void iwm_free_fw_paging(struct iwm_softc *); int iwm_save_fw_paging(struct iwm_softc *, const struct iwm_fw_sects *); int iwm_send_paging_cmd(struct iwm_softc *, const struct iwm_fw_sects *); int iwm_init_hw(struct iwm_softc *); int iwm_init(struct ifnet *); void iwm_start(struct ifnet *); void iwm_stop(struct ifnet *); void iwm_watchdog(struct ifnet *); int iwm_ioctl(struct ifnet *, u_long, caddr_t); const char *iwm_desc_lookup(uint32_t); void iwm_nic_error(struct iwm_softc *); void iwm_dump_driver_status(struct iwm_softc *); void iwm_nic_umac_error(struct iwm_softc *); void iwm_rx_mpdu(struct iwm_softc *, struct mbuf *, void *, size_t, struct mbuf_list *); void iwm_flip_address(uint8_t *); int iwm_detect_duplicate(struct iwm_softc *, struct mbuf *, struct iwm_rx_mpdu_desc *, struct ieee80211_rxinfo *); int iwm_is_sn_less(uint16_t, uint16_t, uint16_t); void iwm_release_frames(struct iwm_softc *, struct ieee80211_node *, struct iwm_rxba_data *, struct iwm_reorder_buffer *, uint16_t, struct mbuf_list *); int iwm_oldsn_workaround(struct iwm_softc *, struct ieee80211_node *, int, struct iwm_reorder_buffer *, uint32_t, uint32_t); int iwm_rx_reorder(struct iwm_softc *, struct mbuf *, int, struct iwm_rx_mpdu_desc *, int, int, uint32_t, struct ieee80211_rxinfo *, struct mbuf_list *); void iwm_rx_mpdu_mq(struct iwm_softc *, struct mbuf *, void *, size_t, struct mbuf_list *); int iwm_rx_pkt_valid(struct iwm_rx_packet *); void iwm_rx_pkt(struct iwm_softc *, struct iwm_rx_data *, struct mbuf_list *); void iwm_notif_intr(struct iwm_softc *); int iwm_intr(void *); int iwm_intr_msix(void *); int iwm_match(struct device *, void *, void *); int iwm_preinit(struct iwm_softc *); void iwm_attach_hook(struct device *); void iwm_attach(struct device *, struct device *, void *); void iwm_init_task(void *); int iwm_activate(struct device *, int); void iwm_resume(struct iwm_softc *); int iwm_wakeup(struct iwm_softc *); #if NBPFILTER > 0 void iwm_radiotap_attach(struct iwm_softc *); #endif uint8_t iwm_lookup_cmd_ver(struct iwm_softc *sc, uint8_t grp, uint8_t cmd) { const struct iwm_fw_cmd_version *entry; int i; for (i = 0; i < sc->n_cmd_versions; i++) { entry = &sc->cmd_versions[i]; if (entry->group == grp && entry->cmd == cmd) return entry->cmd_ver; } return IWM_FW_CMD_VER_UNKNOWN; } int iwm_is_mimo_ht_plcp(uint8_t ht_plcp) { return (ht_plcp != IWM_RATE_HT_SISO_MCS_INV_PLCP && (ht_plcp & IWM_RATE_HT_MCS_NSS_MSK)); } int iwm_is_mimo_mcs(int mcs) { int ridx = iwm_mcs2ridx[mcs]; return iwm_is_mimo_ht_plcp(iwm_rates[ridx].ht_plcp); } int iwm_store_cscheme(struct iwm_softc *sc, uint8_t *data, size_t dlen) { struct iwm_fw_cscheme_list *l = (void *)data; if (dlen < sizeof(*l) || dlen < sizeof(l->size) + l->size * sizeof(*l->cs)) return EINVAL; /* we don't actually store anything for now, always use s/w crypto */ return 0; } int iwm_firmware_store_section(struct iwm_softc *sc, enum iwm_ucode_type type, uint8_t *data, size_t dlen) { struct iwm_fw_sects *fws; struct iwm_fw_onesect *fwone; if (type >= IWM_UCODE_TYPE_MAX) return EINVAL; if (dlen < sizeof(uint32_t)) return EINVAL; fws = &sc->sc_fw.fw_sects[type]; if (fws->fw_count >= IWM_UCODE_SECT_MAX) return EINVAL; fwone = &fws->fw_sect[fws->fw_count]; /* first 32bit are device load offset */ memcpy(&fwone->fws_devoff, data, sizeof(uint32_t)); /* rest is data */ fwone->fws_data = data + sizeof(uint32_t); fwone->fws_len = dlen - sizeof(uint32_t); fws->fw_count++; fws->fw_totlen += fwone->fws_len; return 0; } #define IWM_DEFAULT_SCAN_CHANNELS 40 /* Newer firmware might support more channels. Raise this value if needed. */ #define IWM_MAX_SCAN_CHANNELS 52 /* as of 8265-34 firmware image */ struct iwm_tlv_calib_data { uint32_t ucode_type; struct iwm_tlv_calib_ctrl calib; } __packed; int iwm_set_default_calib(struct iwm_softc *sc, const void *data) { const struct iwm_tlv_calib_data *def_calib = data; uint32_t ucode_type = le32toh(def_calib->ucode_type); if (ucode_type >= IWM_UCODE_TYPE_MAX) return EINVAL; sc->sc_default_calib[ucode_type].flow_trigger = def_calib->calib.flow_trigger; sc->sc_default_calib[ucode_type].event_trigger = def_calib->calib.event_trigger; return 0; } void iwm_fw_info_free(struct iwm_fw_info *fw) { free(fw->fw_rawdata, M_DEVBUF, fw->fw_rawsize); fw->fw_rawdata = NULL; fw->fw_rawsize = 0; /* don't touch fw->fw_status */ memset(fw->fw_sects, 0, sizeof(fw->fw_sects)); } void iwm_fw_version_str(char *buf, size_t bufsize, uint32_t major, uint32_t minor, uint32_t api) { /* * Starting with major version 35 the Linux driver prints the minor * version in hexadecimal. */ if (major >= 35) snprintf(buf, bufsize, "%u.%08x.%u", major, minor, api); else snprintf(buf, bufsize, "%u.%u.%u", major, minor, api); } int iwm_read_firmware(struct iwm_softc *sc) { struct iwm_fw_info *fw = &sc->sc_fw; struct iwm_tlv_ucode_header *uhdr; struct iwm_ucode_tlv tlv; uint32_t tlv_type; uint8_t *data; uint32_t usniffer_img; uint32_t paging_mem_size; int err; size_t len; if (fw->fw_status == IWM_FW_STATUS_DONE) return 0; while (fw->fw_status == IWM_FW_STATUS_INPROGRESS) tsleep_nsec(&sc->sc_fw, 0, "iwmfwp", INFSLP); fw->fw_status = IWM_FW_STATUS_INPROGRESS; if (fw->fw_rawdata != NULL) iwm_fw_info_free(fw); err = loadfirmware(sc->sc_fwname, (u_char **)&fw->fw_rawdata, &fw->fw_rawsize); if (err) { printf("%s: could not read firmware %s (error %d)\n", DEVNAME(sc), sc->sc_fwname, err); goto out; } sc->sc_capaflags = 0; sc->sc_capa_n_scan_channels = IWM_DEFAULT_SCAN_CHANNELS; memset(sc->sc_enabled_capa, 0, sizeof(sc->sc_enabled_capa)); memset(sc->sc_ucode_api, 0, sizeof(sc->sc_ucode_api)); sc->n_cmd_versions = 0; uhdr = (void *)fw->fw_rawdata; if (*(uint32_t *)fw->fw_rawdata != 0 || le32toh(uhdr->magic) != IWM_TLV_UCODE_MAGIC) { printf("%s: invalid firmware %s\n", DEVNAME(sc), sc->sc_fwname); err = EINVAL; goto out; } iwm_fw_version_str(sc->sc_fwver, sizeof(sc->sc_fwver), IWM_UCODE_MAJOR(le32toh(uhdr->ver)), IWM_UCODE_MINOR(le32toh(uhdr->ver)), IWM_UCODE_API(le32toh(uhdr->ver))); data = uhdr->data; len = fw->fw_rawsize - sizeof(*uhdr); while (len >= sizeof(tlv)) { size_t tlv_len; void *tlv_data; memcpy(&tlv, data, sizeof(tlv)); tlv_len = le32toh(tlv.length); tlv_type = le32toh(tlv.type); len -= sizeof(tlv); data += sizeof(tlv); tlv_data = data; if (len < tlv_len) { printf("%s: firmware too short: %zu bytes\n", DEVNAME(sc), len); err = EINVAL; goto parse_out; } switch (tlv_type) { case IWM_UCODE_TLV_PROBE_MAX_LEN: if (tlv_len < sizeof(uint32_t)) { err = EINVAL; goto parse_out; } sc->sc_capa_max_probe_len = le32toh(*(uint32_t *)tlv_data); if (sc->sc_capa_max_probe_len > IWM_SCAN_OFFLOAD_PROBE_REQ_SIZE) { err = EINVAL; goto parse_out; } break; case IWM_UCODE_TLV_PAN: if (tlv_len) { err = EINVAL; goto parse_out; } sc->sc_capaflags |= IWM_UCODE_TLV_FLAGS_PAN; break; case IWM_UCODE_TLV_FLAGS: if (tlv_len < sizeof(uint32_t)) { err = EINVAL; goto parse_out; } /* * Apparently there can be many flags, but Linux driver * parses only the first one, and so do we. * * XXX: why does this override IWM_UCODE_TLV_PAN? * Intentional or a bug? Observations from * current firmware file: * 1) TLV_PAN is parsed first * 2) TLV_FLAGS contains TLV_FLAGS_PAN * ==> this resets TLV_PAN to itself... hnnnk */ sc->sc_capaflags = le32toh(*(uint32_t *)tlv_data); break; case IWM_UCODE_TLV_CSCHEME: err = iwm_store_cscheme(sc, tlv_data, tlv_len); if (err) goto parse_out; break; case IWM_UCODE_TLV_NUM_OF_CPU: { uint32_t num_cpu; if (tlv_len != sizeof(uint32_t)) { err = EINVAL; goto parse_out; } num_cpu = le32toh(*(uint32_t *)tlv_data); if (num_cpu < 1 || num_cpu > 2) { err = EINVAL; goto parse_out; } break; } case IWM_UCODE_TLV_SEC_RT: err = iwm_firmware_store_section(sc, IWM_UCODE_TYPE_REGULAR, tlv_data, tlv_len); if (err) goto parse_out; break; case IWM_UCODE_TLV_SEC_INIT: err = iwm_firmware_store_section(sc, IWM_UCODE_TYPE_INIT, tlv_data, tlv_len); if (err) goto parse_out; break; case IWM_UCODE_TLV_SEC_WOWLAN: err = iwm_firmware_store_section(sc, IWM_UCODE_TYPE_WOW, tlv_data, tlv_len); if (err) goto parse_out; break; case IWM_UCODE_TLV_DEF_CALIB: if (tlv_len != sizeof(struct iwm_tlv_calib_data)) { err = EINVAL; goto parse_out; } err = iwm_set_default_calib(sc, tlv_data); if (err) goto parse_out; break; case IWM_UCODE_TLV_PHY_SKU: if (tlv_len != sizeof(uint32_t)) { err = EINVAL; goto parse_out; } sc->sc_fw_phy_config = le32toh(*(uint32_t *)tlv_data); break; case IWM_UCODE_TLV_API_CHANGES_SET: { struct iwm_ucode_api *api; int idx, i; if (tlv_len != sizeof(*api)) { err = EINVAL; goto parse_out; } api = (struct iwm_ucode_api *)tlv_data; idx = le32toh(api->api_index); if (idx >= howmany(IWM_NUM_UCODE_TLV_API, 32)) { err = EINVAL; goto parse_out; } for (i = 0; i < 32; i++) { if ((le32toh(api->api_flags) & (1 << i)) == 0) continue; setbit(sc->sc_ucode_api, i + (32 * idx)); } break; } case IWM_UCODE_TLV_ENABLED_CAPABILITIES: { struct iwm_ucode_capa *capa; int idx, i; if (tlv_len != sizeof(*capa)) { err = EINVAL; goto parse_out; } capa = (struct iwm_ucode_capa *)tlv_data; idx = le32toh(capa->api_index); if (idx >= howmany(IWM_NUM_UCODE_TLV_CAPA, 32)) { goto parse_out; } for (i = 0; i < 32; i++) { if ((le32toh(capa->api_capa) & (1 << i)) == 0) continue; setbit(sc->sc_enabled_capa, i + (32 * idx)); } break; } case IWM_UCODE_TLV_CMD_VERSIONS: if (tlv_len % sizeof(struct iwm_fw_cmd_version)) { tlv_len /= sizeof(struct iwm_fw_cmd_version); tlv_len *= sizeof(struct iwm_fw_cmd_version); } if (sc->n_cmd_versions != 0) { err = EINVAL; goto parse_out; } if (tlv_len > sizeof(sc->cmd_versions)) { err = EINVAL; goto parse_out; } memcpy(&sc->cmd_versions[0], tlv_data, tlv_len); sc->n_cmd_versions = tlv_len / sizeof(struct iwm_fw_cmd_version); break; case IWM_UCODE_TLV_SDIO_ADMA_ADDR: case IWM_UCODE_TLV_FW_GSCAN_CAPA: /* ignore, not used by current driver */ break; case IWM_UCODE_TLV_SEC_RT_USNIFFER: err = iwm_firmware_store_section(sc, IWM_UCODE_TYPE_REGULAR_USNIFFER, tlv_data, tlv_len); if (err) goto parse_out; break; case IWM_UCODE_TLV_PAGING: if (tlv_len != sizeof(uint32_t)) { err = EINVAL; goto parse_out; } paging_mem_size = le32toh(*(const uint32_t *)tlv_data); DPRINTF(("%s: Paging: paging enabled (size = %u bytes)\n", DEVNAME(sc), paging_mem_size)); if (paging_mem_size > IWM_MAX_PAGING_IMAGE_SIZE) { printf("%s: Driver only supports up to %u" " bytes for paging image (%u requested)\n", DEVNAME(sc), IWM_MAX_PAGING_IMAGE_SIZE, paging_mem_size); err = EINVAL; goto out; } if (paging_mem_size & (IWM_FW_PAGING_SIZE - 1)) { printf("%s: Paging: image isn't multiple of %u\n", DEVNAME(sc), IWM_FW_PAGING_SIZE); err = EINVAL; goto out; } fw->fw_sects[IWM_UCODE_TYPE_REGULAR].paging_mem_size = paging_mem_size; usniffer_img = IWM_UCODE_TYPE_REGULAR_USNIFFER; fw->fw_sects[usniffer_img].paging_mem_size = paging_mem_size; break; case IWM_UCODE_TLV_N_SCAN_CHANNELS: if (tlv_len != sizeof(uint32_t)) { err = EINVAL; goto parse_out; } sc->sc_capa_n_scan_channels = le32toh(*(uint32_t *)tlv_data); if (sc->sc_capa_n_scan_channels > IWM_MAX_SCAN_CHANNELS) { err = ERANGE; goto parse_out; } break; case IWM_UCODE_TLV_FW_VERSION: if (tlv_len != sizeof(uint32_t) * 3) { err = EINVAL; goto parse_out; } iwm_fw_version_str(sc->sc_fwver, sizeof(sc->sc_fwver), le32toh(((uint32_t *)tlv_data)[0]), le32toh(((uint32_t *)tlv_data)[1]), le32toh(((uint32_t *)tlv_data)[2])); break; case IWM_UCODE_TLV_FW_DBG_DEST: case IWM_UCODE_TLV_FW_DBG_CONF: case IWM_UCODE_TLV_UMAC_DEBUG_ADDRS: case IWM_UCODE_TLV_LMAC_DEBUG_ADDRS: case IWM_UCODE_TLV_TYPE_DEBUG_INFO: case IWM_UCODE_TLV_TYPE_BUFFER_ALLOCATION: case IWM_UCODE_TLV_TYPE_HCMD: case IWM_UCODE_TLV_TYPE_REGIONS: case IWM_UCODE_TLV_TYPE_TRIGGERS: break; case IWM_UCODE_TLV_HW_TYPE: break; case IWM_UCODE_TLV_FW_MEM_SEG: break; /* undocumented TLVs found in iwm-9000-43 image */ case 0x1000003: case 0x1000004: break; default: err = EINVAL; goto parse_out; } len -= roundup(tlv_len, 4); data += roundup(tlv_len, 4); } KASSERT(err == 0); parse_out: if (err) { printf("%s: firmware parse error %d, " "section type %d\n", DEVNAME(sc), err, tlv_type); } out: if (err) { fw->fw_status = IWM_FW_STATUS_NONE; if (fw->fw_rawdata != NULL) iwm_fw_info_free(fw); } else fw->fw_status = IWM_FW_STATUS_DONE; wakeup(&sc->sc_fw); return err; } uint32_t iwm_read_prph_unlocked(struct iwm_softc *sc, uint32_t addr) { IWM_WRITE(sc, IWM_HBUS_TARG_PRPH_RADDR, ((addr & 0x000fffff) | (3 << 24))); IWM_BARRIER_READ_WRITE(sc); return IWM_READ(sc, IWM_HBUS_TARG_PRPH_RDAT); } uint32_t iwm_read_prph(struct iwm_softc *sc, uint32_t addr) { iwm_nic_assert_locked(sc); return iwm_read_prph_unlocked(sc, addr); } void iwm_write_prph_unlocked(struct iwm_softc *sc, uint32_t addr, uint32_t val) { IWM_WRITE(sc, IWM_HBUS_TARG_PRPH_WADDR, ((addr & 0x000fffff) | (3 << 24))); IWM_BARRIER_WRITE(sc); IWM_WRITE(sc, IWM_HBUS_TARG_PRPH_WDAT, val); } void iwm_write_prph(struct iwm_softc *sc, uint32_t addr, uint32_t val) { iwm_nic_assert_locked(sc); iwm_write_prph_unlocked(sc, addr, val); } void iwm_write_prph64(struct iwm_softc *sc, uint64_t addr, uint64_t val) { iwm_write_prph(sc, (uint32_t)addr, val & 0xffffffff); iwm_write_prph(sc, (uint32_t)addr + 4, val >> 32); } int iwm_read_mem(struct iwm_softc *sc, uint32_t addr, void *buf, int dwords) { int offs, err = 0; uint32_t *vals = buf; if (iwm_nic_lock(sc)) { IWM_WRITE(sc, IWM_HBUS_TARG_MEM_RADDR, addr); for (offs = 0; offs < dwords; offs++) vals[offs] = IWM_READ(sc, IWM_HBUS_TARG_MEM_RDAT); iwm_nic_unlock(sc); } else { err = EBUSY; } return err; } int iwm_write_mem(struct iwm_softc *sc, uint32_t addr, const void *buf, int dwords) { int offs; const uint32_t *vals = buf; if (iwm_nic_lock(sc)) { IWM_WRITE(sc, IWM_HBUS_TARG_MEM_WADDR, addr); /* WADDR auto-increments */ for (offs = 0; offs < dwords; offs++) { uint32_t val = vals ? vals[offs] : 0; IWM_WRITE(sc, IWM_HBUS_TARG_MEM_WDAT, val); } iwm_nic_unlock(sc); } else { return EBUSY; } return 0; } int iwm_write_mem32(struct iwm_softc *sc, uint32_t addr, uint32_t val) { return iwm_write_mem(sc, addr, &val, 1); } int iwm_poll_bit(struct iwm_softc *sc, int reg, uint32_t bits, uint32_t mask, int timo) { for (;;) { if ((IWM_READ(sc, reg) & mask) == (bits & mask)) { return 1; } if (timo < 10) { return 0; } timo -= 10; DELAY(10); } } int iwm_nic_lock(struct iwm_softc *sc) { if (sc->sc_nic_locks > 0) { iwm_nic_assert_locked(sc); sc->sc_nic_locks++; return 1; /* already locked */ } IWM_SETBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); if (sc->sc_device_family >= IWM_DEVICE_FAMILY_8000) DELAY(2); if (iwm_poll_bit(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | IWM_CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP, 150000)) { sc->sc_nic_locks++; return 1; } printf("%s: acquiring device failed\n", DEVNAME(sc)); return 0; } void iwm_nic_assert_locked(struct iwm_softc *sc) { if (sc->sc_nic_locks <= 0) panic("%s: nic locks counter %d", DEVNAME(sc), sc->sc_nic_locks); } void iwm_nic_unlock(struct iwm_softc *sc) { if (sc->sc_nic_locks > 0) { if (--sc->sc_nic_locks == 0) IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); } else printf("%s: NIC already unlocked\n", DEVNAME(sc)); } int iwm_set_bits_mask_prph(struct iwm_softc *sc, uint32_t reg, uint32_t bits, uint32_t mask) { uint32_t val; if (iwm_nic_lock(sc)) { val = iwm_read_prph(sc, reg) & mask; val |= bits; iwm_write_prph(sc, reg, val); iwm_nic_unlock(sc); return 0; } return EBUSY; } int iwm_set_bits_prph(struct iwm_softc *sc, uint32_t reg, uint32_t bits) { return iwm_set_bits_mask_prph(sc, reg, bits, ~0); } int iwm_clear_bits_prph(struct iwm_softc *sc, uint32_t reg, uint32_t bits) { return iwm_set_bits_mask_prph(sc, reg, 0, ~bits); } int iwm_dma_contig_alloc(bus_dma_tag_t tag, struct iwm_dma_info *dma, bus_size_t size, bus_size_t alignment) { int nsegs, err; caddr_t va; dma->tag = tag; dma->size = size; err = bus_dmamap_create(tag, size, 1, size, 0, BUS_DMA_NOWAIT, &dma->map); if (err) goto fail; err = bus_dmamem_alloc(tag, size, alignment, 0, &dma->seg, 1, &nsegs, BUS_DMA_NOWAIT); if (err) goto fail; err = bus_dmamem_map(tag, &dma->seg, 1, size, &va, BUS_DMA_NOWAIT); if (err) goto fail; dma->vaddr = va; err = bus_dmamap_load(tag, dma->map, dma->vaddr, size, NULL, BUS_DMA_NOWAIT); if (err) goto fail; memset(dma->vaddr, 0, size); bus_dmamap_sync(tag, dma->map, 0, size, BUS_DMASYNC_PREWRITE); dma->paddr = dma->map->dm_segs[0].ds_addr; return 0; fail: iwm_dma_contig_free(dma); return err; } void iwm_dma_contig_free(struct iwm_dma_info *dma) { if (dma->map != NULL) { if (dma->vaddr != NULL) { bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(dma->tag, dma->map); bus_dmamem_unmap(dma->tag, dma->vaddr, dma->size); bus_dmamem_free(dma->tag, &dma->seg, 1); dma->vaddr = NULL; } bus_dmamap_destroy(dma->tag, dma->map); dma->map = NULL; } } int iwm_alloc_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring) { bus_size_t size; size_t descsz; int count, i, err; ring->cur = 0; if (sc->sc_mqrx_supported) { count = IWM_RX_MQ_RING_COUNT; descsz = sizeof(uint64_t); } else { count = IWM_RX_RING_COUNT; descsz = sizeof(uint32_t); } /* Allocate RX descriptors (256-byte aligned). */ size = count * descsz; err = iwm_dma_contig_alloc(sc->sc_dmat, &ring->free_desc_dma, size, 256); if (err) { printf("%s: could not allocate RX ring DMA memory\n", DEVNAME(sc)); goto fail; } ring->desc = ring->free_desc_dma.vaddr; /* Allocate RX status area (16-byte aligned). */ err = iwm_dma_contig_alloc(sc->sc_dmat, &ring->stat_dma, sizeof(*ring->stat), 16); if (err) { printf("%s: could not allocate RX status DMA memory\n", DEVNAME(sc)); goto fail; } ring->stat = ring->stat_dma.vaddr; if (sc->sc_mqrx_supported) { size = count * sizeof(uint32_t); err = iwm_dma_contig_alloc(sc->sc_dmat, &ring->used_desc_dma, size, 256); if (err) { printf("%s: could not allocate RX ring DMA memory\n", DEVNAME(sc)); goto fail; } } for (i = 0; i < count; i++) { struct iwm_rx_data *data = &ring->data[i]; memset(data, 0, sizeof(*data)); err = bus_dmamap_create(sc->sc_dmat, IWM_RBUF_SIZE, 1, IWM_RBUF_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &data->map); if (err) { printf("%s: could not create RX buf DMA map\n", DEVNAME(sc)); goto fail; } err = iwm_rx_addbuf(sc, IWM_RBUF_SIZE, i); if (err) goto fail; } return 0; fail: iwm_free_rx_ring(sc, ring); return err; } void iwm_disable_rx_dma(struct iwm_softc *sc) { int ntries; if (iwm_nic_lock(sc)) { if (sc->sc_mqrx_supported) { iwm_write_prph(sc, IWM_RFH_RXF_DMA_CFG, 0); for (ntries = 0; ntries < 1000; ntries++) { if (iwm_read_prph(sc, IWM_RFH_GEN_STATUS) & IWM_RXF_DMA_IDLE) break; DELAY(10); } } else { IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); for (ntries = 0; ntries < 1000; ntries++) { if (IWM_READ(sc, IWM_FH_MEM_RSSR_RX_STATUS_REG)& IWM_FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE) break; DELAY(10); } } iwm_nic_unlock(sc); } } void iwm_reset_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring) { ring->cur = 0; bus_dmamap_sync(sc->sc_dmat, ring->stat_dma.map, 0, ring->stat_dma.size, BUS_DMASYNC_PREWRITE); memset(ring->stat, 0, sizeof(*ring->stat)); bus_dmamap_sync(sc->sc_dmat, ring->stat_dma.map, 0, ring->stat_dma.size, BUS_DMASYNC_POSTWRITE); } void iwm_free_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring) { int count, i; iwm_dma_contig_free(&ring->free_desc_dma); iwm_dma_contig_free(&ring->stat_dma); iwm_dma_contig_free(&ring->used_desc_dma); if (sc->sc_mqrx_supported) count = IWM_RX_MQ_RING_COUNT; else count = IWM_RX_RING_COUNT; for (i = 0; i < count; i++) { struct iwm_rx_data *data = &ring->data[i]; if (data->m != NULL) { bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); bus_dmamap_unload(sc->sc_dmat, data->map); m_freem(data->m); data->m = NULL; } if (data->map != NULL) bus_dmamap_destroy(sc->sc_dmat, data->map); } } int iwm_alloc_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring, int qid) { bus_addr_t paddr; bus_size_t size; int i, err; ring->qid = qid; ring->queued = 0; ring->cur = 0; ring->tail = 0; /* Allocate TX descriptors (256-byte aligned). */ size = IWM_TX_RING_COUNT * sizeof (struct iwm_tfd); err = iwm_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, size, 256); if (err) { printf("%s: could not allocate TX ring DMA memory\n", DEVNAME(sc)); goto fail; } ring->desc = ring->desc_dma.vaddr; /* * There is no need to allocate DMA buffers for unused rings. * 7k/8k/9k hardware supports up to 31 Tx rings which is more * than we currently need. * * In DQA mode we use 1 command queue + 4 DQA mgmt/data queues. * The command is queue 0 (sc->txq[0]), and 4 mgmt/data frame queues * are sc->tqx[IWM_DQA_MIN_MGMT_QUEUE + ac], i.e. sc->txq[5:8], * in order to provide one queue per EDCA category. * Tx aggregation requires additional queues, one queue per TID for * which aggregation is enabled. We map TID 0-7 to sc->txq[10:17]. * * In non-DQA mode, we use rings 0 through 9 (0-3 are EDCA, 9 is cmd), * and Tx aggregation is not supported. * * Unfortunately, we cannot tell if DQA will be used until the * firmware gets loaded later, so just allocate sufficient rings * in order to satisfy both cases. */ if (qid > IWM_LAST_AGG_TX_QUEUE) return 0; size = IWM_TX_RING_COUNT * sizeof(struct iwm_device_cmd); err = iwm_dma_contig_alloc(sc->sc_dmat, &ring->cmd_dma, size, 4); if (err) { printf("%s: could not allocate cmd DMA memory\n", DEVNAME(sc)); goto fail; } ring->cmd = ring->cmd_dma.vaddr; paddr = ring->cmd_dma.paddr; for (i = 0; i < IWM_TX_RING_COUNT; i++) { struct iwm_tx_data *data = &ring->data[i]; size_t mapsize; data->cmd_paddr = paddr; data->scratch_paddr = paddr + sizeof(struct iwm_cmd_header) + offsetof(struct iwm_tx_cmd, scratch); paddr += sizeof(struct iwm_device_cmd); /* FW commands may require more mapped space than packets. */ if (qid == IWM_CMD_QUEUE || qid == IWM_DQA_CMD_QUEUE) mapsize = (sizeof(struct iwm_cmd_header) + IWM_MAX_CMD_PAYLOAD_SIZE); else mapsize = MCLBYTES; err = bus_dmamap_create(sc->sc_dmat, mapsize, IWM_NUM_OF_TBS - 2, mapsize, 0, BUS_DMA_NOWAIT, &data->map); if (err) { printf("%s: could not create TX buf DMA map\n", DEVNAME(sc)); goto fail; } } KASSERT(paddr == ring->cmd_dma.paddr + size); return 0; fail: iwm_free_tx_ring(sc, ring); return err; } void iwm_reset_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring) { int i; for (i = 0; i < IWM_TX_RING_COUNT; i++) { struct iwm_tx_data *data = &ring->data[i]; if (data->m != NULL) { bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, data->map); m_freem(data->m); data->m = NULL; } } /* Clear TX descriptors. */ memset(ring->desc, 0, ring->desc_dma.size); bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, ring->desc_dma.size, BUS_DMASYNC_PREWRITE); sc->qfullmsk &= ~(1 << ring->qid); sc->qenablemsk &= ~(1 << ring->qid); /* 7000 family NICs are locked while commands are in progress. */ if (ring->qid == sc->cmdqid && ring->queued > 0) { if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) iwm_nic_unlock(sc); } ring->queued = 0; ring->cur = 0; ring->tail = 0; } void iwm_free_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring) { int i; iwm_dma_contig_free(&ring->desc_dma); iwm_dma_contig_free(&ring->cmd_dma); for (i = 0; i < IWM_TX_RING_COUNT; i++) { struct iwm_tx_data *data = &ring->data[i]; if (data->m != NULL) { bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, data->map); m_freem(data->m); data->m = NULL; } if (data->map != NULL) bus_dmamap_destroy(sc->sc_dmat, data->map); } } void iwm_enable_rfkill_int(struct iwm_softc *sc) { if (!sc->sc_msix) { sc->sc_intmask = IWM_CSR_INT_BIT_RF_KILL; IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask); } else { IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, sc->sc_fh_init_mask); IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, ~IWM_MSIX_HW_INT_CAUSES_REG_RF_KILL); sc->sc_hw_mask = IWM_MSIX_HW_INT_CAUSES_REG_RF_KILL; } if (sc->sc_device_family >= IWM_DEVICE_FAMILY_9000) IWM_SETBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN); } int iwm_check_rfkill(struct iwm_softc *sc) { uint32_t v; int rv; /* * "documentation" is not really helpful here: * 27: HW_RF_KILL_SW * Indicates state of (platform's) hardware RF-Kill switch * * But apparently when it's off, it's on ... */ v = IWM_READ(sc, IWM_CSR_GP_CNTRL); rv = (v & IWM_CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) == 0; if (rv) { sc->sc_flags |= IWM_FLAG_RFKILL; } else { sc->sc_flags &= ~IWM_FLAG_RFKILL; } return rv; } void iwm_enable_interrupts(struct iwm_softc *sc) { if (!sc->sc_msix) { sc->sc_intmask = IWM_CSR_INI_SET_MASK; IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask); } else { /* * fh/hw_mask keeps all the unmasked causes. * Unlike msi, in msix cause is enabled when it is unset. */ sc->sc_hw_mask = sc->sc_hw_init_mask; sc->sc_fh_mask = sc->sc_fh_init_mask; IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, ~sc->sc_fh_mask); IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, ~sc->sc_hw_mask); } } void iwm_enable_fwload_interrupt(struct iwm_softc *sc) { if (!sc->sc_msix) { sc->sc_intmask = IWM_CSR_INT_BIT_FH_TX; IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask); } else { IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, sc->sc_hw_init_mask); IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, ~IWM_MSIX_FH_INT_CAUSES_D2S_CH0_NUM); sc->sc_fh_mask = IWM_MSIX_FH_INT_CAUSES_D2S_CH0_NUM; } } void iwm_restore_interrupts(struct iwm_softc *sc) { IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask); } void iwm_disable_interrupts(struct iwm_softc *sc) { if (!sc->sc_msix) { IWM_WRITE(sc, IWM_CSR_INT_MASK, 0); /* acknowledge all interrupts */ IWM_WRITE(sc, IWM_CSR_INT, ~0); IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, ~0); } else { IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, sc->sc_fh_init_mask); IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, sc->sc_hw_init_mask); } } void iwm_ict_reset(struct iwm_softc *sc) { iwm_disable_interrupts(sc); memset(sc->ict_dma.vaddr, 0, IWM_ICT_SIZE); sc->ict_cur = 0; /* Set physical address of ICT (4KB aligned). */ IWM_WRITE(sc, IWM_CSR_DRAM_INT_TBL_REG, IWM_CSR_DRAM_INT_TBL_ENABLE | IWM_CSR_DRAM_INIT_TBL_WRAP_CHECK | IWM_CSR_DRAM_INIT_TBL_WRITE_POINTER | sc->ict_dma.paddr >> IWM_ICT_PADDR_SHIFT); /* Switch to ICT interrupt mode in driver. */ sc->sc_flags |= IWM_FLAG_USE_ICT; IWM_WRITE(sc, IWM_CSR_INT, ~0); iwm_enable_interrupts(sc); } #define IWM_HW_READY_TIMEOUT 50 int iwm_set_hw_ready(struct iwm_softc *sc) { int ready; IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, IWM_CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); ready = iwm_poll_bit(sc, IWM_CSR_HW_IF_CONFIG_REG, IWM_CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, IWM_CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, IWM_HW_READY_TIMEOUT); if (ready) IWM_SETBITS(sc, IWM_CSR_MBOX_SET_REG, IWM_CSR_MBOX_SET_REG_OS_ALIVE); return ready; } #undef IWM_HW_READY_TIMEOUT int iwm_prepare_card_hw(struct iwm_softc *sc) { int t = 0; int ntries; if (iwm_set_hw_ready(sc)) return 0; IWM_SETBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); DELAY(1000); for (ntries = 0; ntries < 10; ntries++) { /* If HW is not ready, prepare the conditions to check again */ IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, IWM_CSR_HW_IF_CONFIG_REG_PREPARE); do { if (iwm_set_hw_ready(sc)) return 0; DELAY(200); t += 200; } while (t < 150000); DELAY(25000); } return ETIMEDOUT; } void iwm_apm_config(struct iwm_softc *sc) { pcireg_t lctl, cap; /* * HW bug W/A for instability in PCIe bus L0S->L1 transition. * Check if BIOS (or OS) enabled L1-ASPM on this device. * If so (likely), disable L0S, so device moves directly L0->L1; * costs negligible amount of power savings. * If not (unlikely), enable L0S, so there is at least some * power savings, even without L1. */ lctl = pci_conf_read(sc->sc_pct, sc->sc_pcitag, sc->sc_cap_off + PCI_PCIE_LCSR); if (lctl & PCI_PCIE_LCSR_ASPM_L1) { IWM_SETBITS(sc, IWM_CSR_GIO_REG, IWM_CSR_GIO_REG_VAL_L0S_ENABLED); } else { IWM_CLRBITS(sc, IWM_CSR_GIO_REG, IWM_CSR_GIO_REG_VAL_L0S_ENABLED); } cap = pci_conf_read(sc->sc_pct, sc->sc_pcitag, sc->sc_cap_off + PCI_PCIE_DCSR2); sc->sc_ltr_enabled = (cap & PCI_PCIE_DCSR2_LTREN) ? 1 : 0; DPRINTF(("%s: L1 %sabled - LTR %sabled\n", DEVNAME(sc), (lctl & PCI_PCIE_LCSR_ASPM_L1) ? "En" : "Dis", sc->sc_ltr_enabled ? "En" : "Dis")); } /* * Start up NIC's basic functionality after it has been reset * e.g. after platform boot or shutdown. * NOTE: This does not load uCode nor start the embedded processor */ int iwm_apm_init(struct iwm_softc *sc) { int err = 0; /* Disable L0S exit timer (platform NMI workaround) */ if (sc->sc_device_family < IWM_DEVICE_FAMILY_8000) IWM_SETBITS(sc, IWM_CSR_GIO_CHICKEN_BITS, IWM_CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); /* * Disable L0s without affecting L1; * don't wait for ICH L0s (ICH bug W/A) */ IWM_SETBITS(sc, IWM_CSR_GIO_CHICKEN_BITS, IWM_CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); /* Set FH wait threshold to maximum (HW error during stress W/A) */ IWM_SETBITS(sc, IWM_CSR_DBG_HPET_MEM_REG, IWM_CSR_DBG_HPET_MEM_REG_VAL); /* * Enable HAP INTA (interrupt from management bus) to * wake device's PCI Express link L1a -> L0s */ IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, IWM_CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); iwm_apm_config(sc); #if 0 /* not for 7k/8k */ /* Configure analog phase-lock-loop before activating to D0A */ if (trans->cfg->base_params->pll_cfg_val) IWM_SETBITS(trans, IWM_CSR_ANA_PLL_CFG, trans->cfg->base_params->pll_cfg_val); #endif /* * Set "initialization complete" bit to move adapter from * D0U* --> D0A* (powered-up active) state. */ IWM_SETBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_INIT_DONE); /* * Wait for clock stabilization; once stabilized, access to * device-internal resources is supported, e.g. iwm_write_prph() * and accesses to uCode SRAM. */ if (!iwm_poll_bit(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000)) { printf("%s: timeout waiting for clock stabilization\n", DEVNAME(sc)); err = ETIMEDOUT; goto out; } if (sc->host_interrupt_operation_mode) { /* * This is a bit of an abuse - This is needed for 7260 / 3160 * only check host_interrupt_operation_mode even if this is * not related to host_interrupt_operation_mode. * * Enable the oscillator to count wake up time for L1 exit. This * consumes slightly more power (100uA) - but allows to be sure * that we wake up from L1 on time. * * This looks weird: read twice the same register, discard the * value, set a bit, and yet again, read that same register * just to discard the value. But that's the way the hardware * seems to like it. */ if (iwm_nic_lock(sc)) { iwm_read_prph(sc, IWM_OSC_CLK); iwm_read_prph(sc, IWM_OSC_CLK); iwm_nic_unlock(sc); } err = iwm_set_bits_prph(sc, IWM_OSC_CLK, IWM_OSC_CLK_FORCE_CONTROL); if (err) goto out; if (iwm_nic_lock(sc)) { iwm_read_prph(sc, IWM_OSC_CLK); iwm_read_prph(sc, IWM_OSC_CLK); iwm_nic_unlock(sc); } } /* * Enable DMA clock and wait for it to stabilize. * * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits * do not disable clocks. This preserves any hardware bits already * set by default in "CLK_CTRL_REG" after reset. */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { if (iwm_nic_lock(sc)) { iwm_write_prph(sc, IWM_APMG_CLK_EN_REG, IWM_APMG_CLK_VAL_DMA_CLK_RQT); iwm_nic_unlock(sc); } DELAY(20); /* Disable L1-Active */ err = iwm_set_bits_prph(sc, IWM_APMG_PCIDEV_STT_REG, IWM_APMG_PCIDEV_STT_VAL_L1_ACT_DIS); if (err) goto out; /* Clear the interrupt in APMG if the NIC is in RFKILL */ if (iwm_nic_lock(sc)) { iwm_write_prph(sc, IWM_APMG_RTC_INT_STT_REG, IWM_APMG_RTC_INT_STT_RFKILL); iwm_nic_unlock(sc); } } out: if (err) printf("%s: apm init error %d\n", DEVNAME(sc), err); return err; } void iwm_apm_stop(struct iwm_softc *sc) { IWM_SETBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, IWM_CSR_HW_IF_CONFIG_REG_PREPARE | IWM_CSR_HW_IF_CONFIG_REG_ENABLE_PME); DELAY(1000); IWM_CLRBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); DELAY(5000); /* stop device's busmaster DMA activity */ IWM_SETBITS(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_STOP_MASTER); if (!iwm_poll_bit(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_MASTER_DISABLED, IWM_CSR_RESET_REG_FLAG_MASTER_DISABLED, 100)) printf("%s: timeout waiting for master\n", DEVNAME(sc)); /* * Clear "initialization complete" bit to move adapter from * D0A* (powered-up Active) --> D0U* (Uninitialized) state. */ IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_INIT_DONE); } void iwm_init_msix_hw(struct iwm_softc *sc) { iwm_conf_msix_hw(sc, 0); if (!sc->sc_msix) return; sc->sc_fh_init_mask = ~IWM_READ(sc, IWM_CSR_MSIX_FH_INT_MASK_AD); sc->sc_fh_mask = sc->sc_fh_init_mask; sc->sc_hw_init_mask = ~IWM_READ(sc, IWM_CSR_MSIX_HW_INT_MASK_AD); sc->sc_hw_mask = sc->sc_hw_init_mask; } void iwm_conf_msix_hw(struct iwm_softc *sc, int stopped) { int vector = 0; if (!sc->sc_msix) { /* Newer chips default to MSIX. */ if (sc->sc_mqrx_supported && !stopped && iwm_nic_lock(sc)) { iwm_write_prph(sc, IWM_UREG_CHICK, IWM_UREG_CHICK_MSI_ENABLE); iwm_nic_unlock(sc); } return; } if (!stopped && iwm_nic_lock(sc)) { iwm_write_prph(sc, IWM_UREG_CHICK, IWM_UREG_CHICK_MSIX_ENABLE); iwm_nic_unlock(sc); } /* Disable all interrupts */ IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, ~0); IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, ~0); /* Map fallback-queue (command/mgmt) to a single vector */ IWM_WRITE_1(sc, IWM_CSR_MSIX_RX_IVAR(0), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); /* Map RSS queue (data) to the same vector */ IWM_WRITE_1(sc, IWM_CSR_MSIX_RX_IVAR(1), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); /* Enable the RX queues cause interrupts */ IWM_CLRBITS(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, IWM_MSIX_FH_INT_CAUSES_Q0 | IWM_MSIX_FH_INT_CAUSES_Q1); /* Map non-RX causes to the same vector */ IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_D2S_CH0_NUM), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_D2S_CH1_NUM), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_S2D), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_FH_ERR), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_ALIVE), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_WAKEUP), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_IML), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_CT_KILL), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_RF_KILL), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_PERIODIC), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_SW_ERR), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_SCD), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_FH_TX), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_HW_ERR), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); IWM_WRITE_1(sc, IWM_CSR_MSIX_IVAR(IWM_MSIX_IVAR_CAUSE_REG_HAP), vector | IWM_MSIX_NON_AUTO_CLEAR_CAUSE); /* Enable non-RX causes interrupts */ IWM_CLRBITS(sc, IWM_CSR_MSIX_FH_INT_MASK_AD, IWM_MSIX_FH_INT_CAUSES_D2S_CH0_NUM | IWM_MSIX_FH_INT_CAUSES_D2S_CH1_NUM | IWM_MSIX_FH_INT_CAUSES_S2D | IWM_MSIX_FH_INT_CAUSES_FH_ERR); IWM_CLRBITS(sc, IWM_CSR_MSIX_HW_INT_MASK_AD, IWM_MSIX_HW_INT_CAUSES_REG_ALIVE | IWM_MSIX_HW_INT_CAUSES_REG_WAKEUP | IWM_MSIX_HW_INT_CAUSES_REG_IML | IWM_MSIX_HW_INT_CAUSES_REG_CT_KILL | IWM_MSIX_HW_INT_CAUSES_REG_RF_KILL | IWM_MSIX_HW_INT_CAUSES_REG_PERIODIC | IWM_MSIX_HW_INT_CAUSES_REG_SW_ERR | IWM_MSIX_HW_INT_CAUSES_REG_SCD | IWM_MSIX_HW_INT_CAUSES_REG_FH_TX | IWM_MSIX_HW_INT_CAUSES_REG_HW_ERR | IWM_MSIX_HW_INT_CAUSES_REG_HAP); } int iwm_clear_persistence_bit(struct iwm_softc *sc) { uint32_t hpm, wprot; hpm = iwm_read_prph_unlocked(sc, IWM_HPM_DEBUG); if (hpm != 0xa5a5a5a0 && (hpm & IWM_HPM_PERSISTENCE_BIT)) { wprot = iwm_read_prph_unlocked(sc, IWM_PREG_PRPH_WPROT_9000); if (wprot & IWM_PREG_WFPM_ACCESS) { printf("%s: cannot clear persistence bit\n", DEVNAME(sc)); return EPERM; } iwm_write_prph_unlocked(sc, IWM_HPM_DEBUG, hpm & ~IWM_HPM_PERSISTENCE_BIT); } return 0; } int iwm_start_hw(struct iwm_softc *sc) { int err; err = iwm_prepare_card_hw(sc); if (err) return err; if (sc->sc_device_family == IWM_DEVICE_FAMILY_9000) { err = iwm_clear_persistence_bit(sc); if (err) return err; } /* Reset the entire device */ IWM_WRITE(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_SW_RESET); DELAY(5000); err = iwm_apm_init(sc); if (err) return err; iwm_init_msix_hw(sc); iwm_enable_rfkill_int(sc); iwm_check_rfkill(sc); return 0; } void iwm_stop_device(struct iwm_softc *sc) { int chnl, ntries; int qid; iwm_disable_interrupts(sc); sc->sc_flags &= ~IWM_FLAG_USE_ICT; /* Stop all DMA channels. */ if (iwm_nic_lock(sc)) { /* Deactivate TX scheduler. */ iwm_write_prph(sc, IWM_SCD_TXFACT, 0); for (chnl = 0; chnl < IWM_FH_TCSR_CHNL_NUM; chnl++) { IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(chnl), 0); for (ntries = 0; ntries < 200; ntries++) { uint32_t r; r = IWM_READ(sc, IWM_FH_TSSR_TX_STATUS_REG); if (r & IWM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE( chnl)) break; DELAY(20); } } iwm_nic_unlock(sc); } iwm_disable_rx_dma(sc); iwm_reset_rx_ring(sc, &sc->rxq); for (qid = 0; qid < nitems(sc->txq); qid++) iwm_reset_tx_ring(sc, &sc->txq[qid]); if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { if (iwm_nic_lock(sc)) { /* Power-down device's busmaster DMA clocks */ iwm_write_prph(sc, IWM_APMG_CLK_DIS_REG, IWM_APMG_CLK_VAL_DMA_CLK_RQT); iwm_nic_unlock(sc); } DELAY(5); } /* Make sure (redundant) we've released our request to stay awake */ IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); if (sc->sc_nic_locks > 0) printf("%s: %d active NIC locks forcefully cleared\n", DEVNAME(sc), sc->sc_nic_locks); sc->sc_nic_locks = 0; /* Stop the device, and put it in low power state */ iwm_apm_stop(sc); /* Reset the on-board processor. */ IWM_WRITE(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_SW_RESET); DELAY(5000); /* * Upon stop, the IVAR table gets erased, so msi-x won't * work. This causes a bug in RF-KILL flows, since the interrupt * that enables radio won't fire on the correct irq, and the * driver won't be able to handle the interrupt. * Configure the IVAR table again after reset. */ iwm_conf_msix_hw(sc, 1); /* * Upon stop, the APM issues an interrupt if HW RF kill is set. * Clear the interrupt again. */ iwm_disable_interrupts(sc); /* Even though we stop the HW we still want the RF kill interrupt. */ iwm_enable_rfkill_int(sc); iwm_check_rfkill(sc); iwm_prepare_card_hw(sc); } void iwm_nic_config(struct iwm_softc *sc) { uint8_t radio_cfg_type, radio_cfg_step, radio_cfg_dash; uint32_t mask, val, reg_val = 0; radio_cfg_type = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_TYPE) >> IWM_FW_PHY_CFG_RADIO_TYPE_POS; radio_cfg_step = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_STEP) >> IWM_FW_PHY_CFG_RADIO_STEP_POS; radio_cfg_dash = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_DASH) >> IWM_FW_PHY_CFG_RADIO_DASH_POS; reg_val |= IWM_CSR_HW_REV_STEP(sc->sc_hw_rev) << IWM_CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; reg_val |= IWM_CSR_HW_REV_DASH(sc->sc_hw_rev) << IWM_CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; /* radio configuration */ reg_val |= radio_cfg_type << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; reg_val |= radio_cfg_step << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; reg_val |= radio_cfg_dash << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; mask = IWM_CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | IWM_CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | IWM_CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | IWM_CSR_HW_IF_CONFIG_REG_BIT_MAC_SI; val = IWM_READ(sc, IWM_CSR_HW_IF_CONFIG_REG); val &= ~mask; val |= reg_val; IWM_WRITE(sc, IWM_CSR_HW_IF_CONFIG_REG, val); /* * W/A : NIC is stuck in a reset state after Early PCIe power off * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) iwm_set_bits_mask_prph(sc, IWM_APMG_PS_CTRL_REG, IWM_APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, ~IWM_APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); } int iwm_nic_rx_init(struct iwm_softc *sc) { if (sc->sc_mqrx_supported) return iwm_nic_rx_mq_init(sc); else return iwm_nic_rx_legacy_init(sc); } int iwm_nic_rx_mq_init(struct iwm_softc *sc) { int enabled; if (!iwm_nic_lock(sc)) return EBUSY; /* Stop RX DMA. */ iwm_write_prph(sc, IWM_RFH_RXF_DMA_CFG, 0); /* Disable RX used and free queue operation. */ iwm_write_prph(sc, IWM_RFH_RXF_RXQ_ACTIVE, 0); iwm_write_prph64(sc, IWM_RFH_Q0_FRBDCB_BA_LSB, sc->rxq.free_desc_dma.paddr); iwm_write_prph64(sc, IWM_RFH_Q0_URBDCB_BA_LSB, sc->rxq.used_desc_dma.paddr); iwm_write_prph64(sc, IWM_RFH_Q0_URBD_STTS_WPTR_LSB, sc->rxq.stat_dma.paddr); iwm_write_prph(sc, IWM_RFH_Q0_FRBDCB_WIDX, 0); iwm_write_prph(sc, IWM_RFH_Q0_FRBDCB_RIDX, 0); iwm_write_prph(sc, IWM_RFH_Q0_URBDCB_WIDX, 0); /* We configure only queue 0 for now. */ enabled = ((1 << 0) << 16) | (1 << 0); /* Enable RX DMA, 4KB buffer size. */ iwm_write_prph(sc, IWM_RFH_RXF_DMA_CFG, IWM_RFH_DMA_EN_ENABLE_VAL | IWM_RFH_RXF_DMA_RB_SIZE_4K | IWM_RFH_RXF_DMA_MIN_RB_4_8 | IWM_RFH_RXF_DMA_DROP_TOO_LARGE_MASK | IWM_RFH_RXF_DMA_RBDCB_SIZE_512); /* Enable RX DMA snooping. */ iwm_write_prph(sc, IWM_RFH_GEN_CFG, IWM_RFH_GEN_CFG_RFH_DMA_SNOOP | IWM_RFH_GEN_CFG_SERVICE_DMA_SNOOP | (sc->sc_integrated ? IWM_RFH_GEN_CFG_RB_CHUNK_SIZE_64 : IWM_RFH_GEN_CFG_RB_CHUNK_SIZE_128)); /* Enable the configured queue(s). */ iwm_write_prph(sc, IWM_RFH_RXF_RXQ_ACTIVE, enabled); iwm_nic_unlock(sc); IWM_WRITE_1(sc, IWM_CSR_INT_COALESCING, IWM_HOST_INT_TIMEOUT_DEF); IWM_WRITE(sc, IWM_RFH_Q0_FRBDCB_WIDX_TRG, 8); return 0; } int iwm_nic_rx_legacy_init(struct iwm_softc *sc) { memset(sc->rxq.stat, 0, sizeof(*sc->rxq.stat)); iwm_disable_rx_dma(sc); if (!iwm_nic_lock(sc)) return EBUSY; /* reset and flush pointers */ IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_RBDCB_WPTR, 0); IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_FLUSH_RB_REQ, 0); IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_RDPTR, 0); IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); /* Set physical address of RX ring (256-byte aligned). */ IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_RBDCB_BASE_REG, sc->rxq.free_desc_dma.paddr >> 8); /* Set physical address of RX status (16-byte aligned). */ IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_STTS_WPTR_REG, sc->rxq.stat_dma.paddr >> 4); /* Enable RX. */ IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_CONFIG_REG, IWM_FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | IWM_FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | /* HW bug */ IWM_FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | (IWM_RX_RB_TIMEOUT << IWM_FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS) | IWM_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K | IWM_RX_QUEUE_SIZE_LOG << IWM_FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS); IWM_WRITE_1(sc, IWM_CSR_INT_COALESCING, IWM_HOST_INT_TIMEOUT_DEF); /* W/A for interrupt coalescing bug in 7260 and 3160 */ if (sc->host_interrupt_operation_mode) IWM_SETBITS(sc, IWM_CSR_INT_COALESCING, IWM_HOST_INT_OPER_MODE); iwm_nic_unlock(sc); /* * This value should initially be 0 (before preparing any RBs), * and should be 8 after preparing the first 8 RBs (for example). */ IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_WPTR, 8); return 0; } int iwm_nic_tx_init(struct iwm_softc *sc) { int qid, err; if (!iwm_nic_lock(sc)) return EBUSY; /* Deactivate TX scheduler. */ iwm_write_prph(sc, IWM_SCD_TXFACT, 0); /* Set physical address of "keep warm" page (16-byte aligned). */ IWM_WRITE(sc, IWM_FH_KW_MEM_ADDR_REG, sc->kw_dma.paddr >> 4); for (qid = 0; qid < nitems(sc->txq); qid++) { struct iwm_tx_ring *txq = &sc->txq[qid]; /* Set physical address of TX ring (256-byte aligned). */ IWM_WRITE(sc, IWM_FH_MEM_CBBC_QUEUE(qid), txq->desc_dma.paddr >> 8); } err = iwm_set_bits_prph(sc, IWM_SCD_GP_CTRL, IWM_SCD_GP_CTRL_AUTO_ACTIVE_MODE | IWM_SCD_GP_CTRL_ENABLE_31_QUEUES); iwm_nic_unlock(sc); return err; } int iwm_nic_init(struct iwm_softc *sc) { int err; iwm_apm_init(sc); if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) iwm_set_bits_mask_prph(sc, IWM_APMG_PS_CTRL_REG, IWM_APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, ~IWM_APMG_PS_CTRL_MSK_PWR_SRC); iwm_nic_config(sc); err = iwm_nic_rx_init(sc); if (err) return err; err = iwm_nic_tx_init(sc); if (err) return err; IWM_SETBITS(sc, IWM_CSR_MAC_SHADOW_REG_CTRL, 0x800fffff); return 0; } /* Map a TID to an ieee80211_edca_ac category. */ const uint8_t iwm_tid_to_ac[IWM_MAX_TID_COUNT] = { EDCA_AC_BE, EDCA_AC_BK, EDCA_AC_BK, EDCA_AC_BE, EDCA_AC_VI, EDCA_AC_VI, EDCA_AC_VO, EDCA_AC_VO, }; /* Map ieee80211_edca_ac categories to firmware Tx FIFO. */ const uint8_t iwm_ac_to_tx_fifo[] = { IWM_TX_FIFO_BE, IWM_TX_FIFO_BK, IWM_TX_FIFO_VI, IWM_TX_FIFO_VO, }; int iwm_enable_ac_txq(struct iwm_softc *sc, int qid, int fifo) { int err; iwm_nic_assert_locked(sc); IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, qid << 8 | 0); iwm_write_prph(sc, IWM_SCD_QUEUE_STATUS_BITS(qid), (0 << IWM_SCD_QUEUE_STTS_REG_POS_ACTIVE) | (1 << IWM_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); err = iwm_clear_bits_prph(sc, IWM_SCD_AGGR_SEL, (1 << qid)); if (err) { return err; } iwm_write_prph(sc, IWM_SCD_QUEUE_RDPTR(qid), 0); iwm_write_mem32(sc, sc->sched_base + IWM_SCD_CONTEXT_QUEUE_OFFSET(qid), 0); /* Set scheduler window size and frame limit. */ iwm_write_mem32(sc, sc->sched_base + IWM_SCD_CONTEXT_QUEUE_OFFSET(qid) + sizeof(uint32_t), ((IWM_FRAME_LIMIT << IWM_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & IWM_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | ((IWM_FRAME_LIMIT << IWM_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & IWM_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); iwm_write_prph(sc, IWM_SCD_QUEUE_STATUS_BITS(qid), (1 << IWM_SCD_QUEUE_STTS_REG_POS_ACTIVE) | (fifo << IWM_SCD_QUEUE_STTS_REG_POS_TXF) | (1 << IWM_SCD_QUEUE_STTS_REG_POS_WSL) | IWM_SCD_QUEUE_STTS_REG_MSK); if (qid == sc->cmdqid) iwm_write_prph(sc, IWM_SCD_EN_CTRL, iwm_read_prph(sc, IWM_SCD_EN_CTRL) | (1 << qid)); return 0; } int iwm_enable_txq(struct iwm_softc *sc, int sta_id, int qid, int fifo, int aggregate, uint8_t tid, uint16_t ssn) { struct iwm_tx_ring *ring = &sc->txq[qid]; struct iwm_scd_txq_cfg_cmd cmd; int err, idx, scd_bug; iwm_nic_assert_locked(sc); /* * If we need to move the SCD write pointer by steps of * 0x40, 0x80 or 0xc0, it gets stuck. * This is really ugly, but this is the easiest way out for * this sad hardware issue. * This bug has been fixed on devices 9000 and up. */ scd_bug = !sc->sc_mqrx_supported && !((ssn - ring->cur) & 0x3f) && (ssn != ring->cur); if (scd_bug) ssn = (ssn + 1) & 0xfff; idx = IWM_AGG_SSN_TO_TXQ_IDX(ssn); IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, qid << 8 | idx); ring->cur = idx; ring->tail = idx; memset(&cmd, 0, sizeof(cmd)); cmd.tid = tid; cmd.scd_queue = qid; cmd.enable = 1; cmd.sta_id = sta_id; cmd.tx_fifo = fifo; cmd.aggregate = aggregate; cmd.ssn = htole16(ssn); cmd.window = IWM_FRAME_LIMIT; err = iwm_send_cmd_pdu(sc, IWM_SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); if (err) return err; sc->qenablemsk |= (1 << qid); return 0; } int iwm_disable_txq(struct iwm_softc *sc, int sta_id, int qid, uint8_t tid) { struct iwm_scd_txq_cfg_cmd cmd; int err; memset(&cmd, 0, sizeof(cmd)); cmd.tid = tid; cmd.scd_queue = qid; cmd.enable = 0; cmd.sta_id = sta_id; err = iwm_send_cmd_pdu(sc, IWM_SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); if (err) return err; sc->qenablemsk &= ~(1 << qid); return 0; } int iwm_post_alive(struct iwm_softc *sc) { int nwords; int err, chnl; uint32_t base; if (!iwm_nic_lock(sc)) return EBUSY; base = iwm_read_prph(sc, IWM_SCD_SRAM_BASE_ADDR); iwm_ict_reset(sc); iwm_nic_unlock(sc); /* Clear TX scheduler state in SRAM. */ nwords = (IWM_SCD_TRANS_TBL_MEM_UPPER_BOUND - IWM_SCD_CONTEXT_MEM_LOWER_BOUND) / sizeof(uint32_t); err = iwm_write_mem(sc, sc->sched_base + IWM_SCD_CONTEXT_MEM_LOWER_BOUND, NULL, nwords); if (err) return err; if (!iwm_nic_lock(sc)) return EBUSY; /* Set physical address of TX scheduler rings (1KB aligned). */ iwm_write_prph(sc, IWM_SCD_DRAM_BASE_ADDR, sc->sched_dma.paddr >> 10); iwm_write_prph(sc, IWM_SCD_CHAINEXT_EN, 0); /* enable command channel */ err = iwm_enable_ac_txq(sc, sc->cmdqid, IWM_TX_FIFO_CMD); if (err) { iwm_nic_unlock(sc); return err; } /* Activate TX scheduler. */ iwm_write_prph(sc, IWM_SCD_TXFACT, 0xff); /* Enable DMA channels. */ for (chnl = 0; chnl < IWM_FH_TCSR_CHNL_NUM; chnl++) { IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(chnl), IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); } IWM_SETBITS(sc, IWM_FH_TX_CHICKEN_BITS_REG, IWM_FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); iwm_nic_unlock(sc); /* Enable L1-Active */ if (sc->sc_device_family < IWM_DEVICE_FAMILY_8000) { err = iwm_clear_bits_prph(sc, IWM_APMG_PCIDEV_STT_REG, IWM_APMG_PCIDEV_STT_VAL_L1_ACT_DIS); } return err; } struct iwm_phy_db_entry * iwm_phy_db_get_section(struct iwm_softc *sc, uint16_t type, uint16_t chg_id) { struct iwm_phy_db *phy_db = &sc->sc_phy_db; if (type >= IWM_PHY_DB_MAX) return NULL; switch (type) { case IWM_PHY_DB_CFG: return &phy_db->cfg; case IWM_PHY_DB_CALIB_NCH: return &phy_db->calib_nch; case IWM_PHY_DB_CALIB_CHG_PAPD: if (chg_id >= IWM_NUM_PAPD_CH_GROUPS) return NULL; return &phy_db->calib_ch_group_papd[chg_id]; case IWM_PHY_DB_CALIB_CHG_TXP: if (chg_id >= IWM_NUM_TXP_CH_GROUPS) return NULL; return &phy_db->calib_ch_group_txp[chg_id]; default: return NULL; } return NULL; } int iwm_phy_db_set_section(struct iwm_softc *sc, struct iwm_calib_res_notif_phy_db *phy_db_notif) { uint16_t type = le16toh(phy_db_notif->type); uint16_t size = le16toh(phy_db_notif->length); struct iwm_phy_db_entry *entry; uint16_t chg_id = 0; if (type == IWM_PHY_DB_CALIB_CHG_PAPD || type == IWM_PHY_DB_CALIB_CHG_TXP) chg_id = le16toh(*(uint16_t *)phy_db_notif->data); entry = iwm_phy_db_get_section(sc, type, chg_id); if (!entry) return EINVAL; if (entry->data) free(entry->data, M_DEVBUF, entry->size); entry->data = malloc(size, M_DEVBUF, M_NOWAIT); if (!entry->data) { entry->size = 0; return ENOMEM; } memcpy(entry->data, phy_db_notif->data, size); entry->size = size; return 0; } int iwm_is_valid_channel(uint16_t ch_id) { if (ch_id <= 14 || (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) || (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) || (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1)) return 1; return 0; } uint8_t iwm_ch_id_to_ch_index(uint16_t ch_id) { if (!iwm_is_valid_channel(ch_id)) return 0xff; if (ch_id <= 14) return ch_id - 1; if (ch_id <= 64) return (ch_id + 20) / 4; if (ch_id <= 140) return (ch_id - 12) / 4; return (ch_id - 13) / 4; } uint16_t iwm_channel_id_to_papd(uint16_t ch_id) { if (!iwm_is_valid_channel(ch_id)) return 0xff; if (1 <= ch_id && ch_id <= 14) return 0; if (36 <= ch_id && ch_id <= 64) return 1; if (100 <= ch_id && ch_id <= 140) return 2; return 3; } uint16_t iwm_channel_id_to_txp(struct iwm_softc *sc, uint16_t ch_id) { struct iwm_phy_db *phy_db = &sc->sc_phy_db; struct iwm_phy_db_chg_txp *txp_chg; int i; uint8_t ch_index = iwm_ch_id_to_ch_index(ch_id); if (ch_index == 0xff) return 0xff; for (i = 0; i < IWM_NUM_TXP_CH_GROUPS; i++) { txp_chg = (void *)phy_db->calib_ch_group_txp[i].data; if (!txp_chg) return 0xff; /* * Looking for the first channel group the max channel * of which is higher than the requested channel. */ if (le16toh(txp_chg->max_channel_idx) >= ch_index) return i; } return 0xff; } int iwm_phy_db_get_section_data(struct iwm_softc *sc, uint32_t type, uint8_t **data, uint16_t *size, uint16_t ch_id) { struct iwm_phy_db_entry *entry; uint16_t ch_group_id = 0; if (type == IWM_PHY_DB_CALIB_CHG_PAPD) ch_group_id = iwm_channel_id_to_papd(ch_id); else if (type == IWM_PHY_DB_CALIB_CHG_TXP) ch_group_id = iwm_channel_id_to_txp(sc, ch_id); entry = iwm_phy_db_get_section(sc, type, ch_group_id); if (!entry) return EINVAL; *data = entry->data; *size = entry->size; return 0; } int iwm_send_phy_db_cmd(struct iwm_softc *sc, uint16_t type, uint16_t length, void *data) { struct iwm_phy_db_cmd phy_db_cmd; struct iwm_host_cmd cmd = { .id = IWM_PHY_DB_CMD, .flags = IWM_CMD_ASYNC, }; phy_db_cmd.type = le16toh(type); phy_db_cmd.length = le16toh(length); cmd.data[0] = &phy_db_cmd; cmd.len[0] = sizeof(struct iwm_phy_db_cmd); cmd.data[1] = data; cmd.len[1] = length; return iwm_send_cmd(sc, &cmd); } int iwm_phy_db_send_all_channel_groups(struct iwm_softc *sc, uint16_t type, uint8_t max_ch_groups) { uint16_t i; int err; struct iwm_phy_db_entry *entry; for (i = 0; i < max_ch_groups; i++) { entry = iwm_phy_db_get_section(sc, type, i); if (!entry) return EINVAL; if (!entry->size) continue; err = iwm_send_phy_db_cmd(sc, type, entry->size, entry->data); if (err) return err; DELAY(1000); } return 0; } int iwm_send_phy_db_data(struct iwm_softc *sc) { uint8_t *data = NULL; uint16_t size = 0; int err; err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CFG, &data, &size, 0); if (err) return err; err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CFG, size, data); if (err) return err; err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CALIB_NCH, &data, &size, 0); if (err) return err; err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CALIB_NCH, size, data); if (err) return err; err = iwm_phy_db_send_all_channel_groups(sc, IWM_PHY_DB_CALIB_CHG_PAPD, IWM_NUM_PAPD_CH_GROUPS); if (err) return err; err = iwm_phy_db_send_all_channel_groups(sc, IWM_PHY_DB_CALIB_CHG_TXP, IWM_NUM_TXP_CH_GROUPS); if (err) return err; return 0; } /* * For the high priority TE use a time event type that has similar priority to * the FW's action scan priority. */ #define IWM_ROC_TE_TYPE_NORMAL IWM_TE_P2P_DEVICE_DISCOVERABLE #define IWM_ROC_TE_TYPE_MGMT_TX IWM_TE_P2P_CLIENT_ASSOC int iwm_send_time_event_cmd(struct iwm_softc *sc, const struct iwm_time_event_cmd *cmd) { struct iwm_rx_packet *pkt; struct iwm_time_event_resp *resp; struct iwm_host_cmd hcmd = { .id = IWM_TIME_EVENT_CMD, .flags = IWM_CMD_WANT_RESP, .resp_pkt_len = sizeof(*pkt) + sizeof(*resp), }; uint32_t resp_len; int err; hcmd.data[0] = cmd; hcmd.len[0] = sizeof(*cmd); err = iwm_send_cmd(sc, &hcmd); if (err) return err; pkt = hcmd.resp_pkt; if (!pkt || (pkt->hdr.flags & IWM_CMD_FAILED_MSK)) { err = EIO; goto out; } resp_len = iwm_rx_packet_payload_len(pkt); if (resp_len != sizeof(*resp)) { err = EIO; goto out; } resp = (void *)pkt->data; if (le32toh(resp->status) == 0) sc->sc_time_event_uid = le32toh(resp->unique_id); else err = EIO; out: iwm_free_resp(sc, &hcmd); return err; } void iwm_protect_session(struct iwm_softc *sc, struct iwm_node *in, uint32_t duration, uint32_t max_delay) { struct iwm_time_event_cmd time_cmd; /* Do nothing if a time event is already scheduled. */ if (sc->sc_flags & IWM_FLAG_TE_ACTIVE) return; memset(&time_cmd, 0, sizeof(time_cmd)); time_cmd.action = htole32(IWM_FW_CTXT_ACTION_ADD); time_cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); time_cmd.id = htole32(IWM_TE_BSS_STA_AGGRESSIVE_ASSOC); time_cmd.apply_time = htole32(0); time_cmd.max_frags = IWM_TE_V2_FRAG_NONE; time_cmd.max_delay = htole32(max_delay); /* TODO: why do we need to interval = bi if it is not periodic? */ time_cmd.interval = htole32(1); time_cmd.duration = htole32(duration); time_cmd.repeat = 1; time_cmd.policy = htole16(IWM_TE_V2_NOTIF_HOST_EVENT_START | IWM_TE_V2_NOTIF_HOST_EVENT_END | IWM_T2_V2_START_IMMEDIATELY); if (iwm_send_time_event_cmd(sc, &time_cmd) == 0) sc->sc_flags |= IWM_FLAG_TE_ACTIVE; DELAY(100); } void iwm_unprotect_session(struct iwm_softc *sc, struct iwm_node *in) { struct iwm_time_event_cmd time_cmd; /* Do nothing if the time event has already ended. */ if ((sc->sc_flags & IWM_FLAG_TE_ACTIVE) == 0) return; memset(&time_cmd, 0, sizeof(time_cmd)); time_cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE); time_cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); time_cmd.id = htole32(sc->sc_time_event_uid); if (iwm_send_time_event_cmd(sc, &time_cmd) == 0) sc->sc_flags &= ~IWM_FLAG_TE_ACTIVE; DELAY(100); } /* * NVM read access and content parsing. We do not support * external NVM or writing NVM. */ /* list of NVM sections we are allowed/need to read */ const int iwm_nvm_to_read[] = { IWM_NVM_SECTION_TYPE_HW, IWM_NVM_SECTION_TYPE_SW, IWM_NVM_SECTION_TYPE_REGULATORY, IWM_NVM_SECTION_TYPE_CALIBRATION, IWM_NVM_SECTION_TYPE_PRODUCTION, IWM_NVM_SECTION_TYPE_REGULATORY_SDP, IWM_NVM_SECTION_TYPE_HW_8000, IWM_NVM_SECTION_TYPE_MAC_OVERRIDE, IWM_NVM_SECTION_TYPE_PHY_SKU, }; #define IWM_NVM_DEFAULT_CHUNK_SIZE (2*1024) #define IWM_NVM_WRITE_OPCODE 1 #define IWM_NVM_READ_OPCODE 0 int iwm_nvm_read_chunk(struct iwm_softc *sc, uint16_t section, uint16_t offset, uint16_t length, uint8_t *data, uint16_t *len) { offset = 0; struct iwm_nvm_access_cmd nvm_access_cmd = { .offset = htole16(offset), .length = htole16(length), .type = htole16(section), .op_code = IWM_NVM_READ_OPCODE, }; struct iwm_nvm_access_resp *nvm_resp; struct iwm_rx_packet *pkt; struct iwm_host_cmd cmd = { .id = IWM_NVM_ACCESS_CMD, .flags = (IWM_CMD_WANT_RESP | IWM_CMD_SEND_IN_RFKILL), .resp_pkt_len = IWM_CMD_RESP_MAX, .data = { &nvm_access_cmd, }, }; int err, offset_read; size_t bytes_read; uint8_t *resp_data; cmd.len[0] = sizeof(struct iwm_nvm_access_cmd); err = iwm_send_cmd(sc, &cmd); if (err) return err; pkt = cmd.resp_pkt; if (pkt->hdr.flags & IWM_CMD_FAILED_MSK) { err = EIO; goto exit; } /* Extract NVM response */ nvm_resp = (void *)pkt->data; if (nvm_resp == NULL) return EIO; err = le16toh(nvm_resp->status); bytes_read = le16toh(nvm_resp->length); offset_read = le16toh(nvm_resp->offset); resp_data = nvm_resp->data; if (err) { err = EINVAL; goto exit; } if (offset_read != offset) { err = EINVAL; goto exit; } if (bytes_read > length) { err = EINVAL; goto exit; } memcpy(data + offset, resp_data, bytes_read); *len = bytes_read; exit: iwm_free_resp(sc, &cmd); return err; } /* * Reads an NVM section completely. * NICs prior to 7000 family doesn't have a real NVM, but just read * section 0 which is the EEPROM. Because the EEPROM reading is unlimited * by uCode, we need to manually check in this case that we don't * overflow and try to read more than the EEPROM size. */ int iwm_nvm_read_section(struct iwm_softc *sc, uint16_t section, uint8_t *data, uint16_t *len, size_t max_len) { uint16_t chunklen, seglen; int err = 0; chunklen = seglen = IWM_NVM_DEFAULT_CHUNK_SIZE; *len = 0; /* Read NVM chunks until exhausted (reading less than requested) */ while (seglen == chunklen && *len < max_len) { err = iwm_nvm_read_chunk(sc, section, *len, chunklen, data, &seglen); if (err) return err; *len += seglen; } return err; } uint8_t iwm_fw_valid_tx_ant(struct iwm_softc *sc) { uint8_t tx_ant; tx_ant = ((sc->sc_fw_phy_config & IWM_FW_PHY_CFG_TX_CHAIN) >> IWM_FW_PHY_CFG_TX_CHAIN_POS); if (sc->sc_nvm.valid_tx_ant) tx_ant &= sc->sc_nvm.valid_tx_ant; return tx_ant; } uint8_t iwm_fw_valid_rx_ant(struct iwm_softc *sc) { uint8_t rx_ant; rx_ant = ((sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RX_CHAIN) >> IWM_FW_PHY_CFG_RX_CHAIN_POS); if (sc->sc_nvm.valid_rx_ant) rx_ant &= sc->sc_nvm.valid_rx_ant; return rx_ant; } void iwm_init_channel_map(struct iwm_softc *sc, const uint16_t * const nvm_ch_flags, const uint8_t *nvm_channels, int nchan) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_nvm_data *data = &sc->sc_nvm; int ch_idx; struct ieee80211_channel *channel; uint16_t ch_flags; int is_5ghz; int flags, hw_value; for (ch_idx = 0; ch_idx < nchan; ch_idx++) { ch_flags = le16_to_cpup(nvm_ch_flags + ch_idx); if (ch_idx >= IWM_NUM_2GHZ_CHANNELS && !data->sku_cap_band_52GHz_enable) ch_flags &= ~IWM_NVM_CHANNEL_VALID; if (!(ch_flags & IWM_NVM_CHANNEL_VALID)) continue; hw_value = nvm_channels[ch_idx]; channel = &ic->ic_channels[hw_value]; is_5ghz = ch_idx >= IWM_NUM_2GHZ_CHANNELS; if (!is_5ghz) { flags = IEEE80211_CHAN_2GHZ; channel->ic_flags = IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; } else { flags = IEEE80211_CHAN_5GHZ; channel->ic_flags = IEEE80211_CHAN_A; } channel->ic_freq = ieee80211_ieee2mhz(hw_value, flags); if (!(ch_flags & IWM_NVM_CHANNEL_ACTIVE)) channel->ic_flags |= IEEE80211_CHAN_PASSIVE; if (data->sku_cap_11n_enable) { channel->ic_flags |= IEEE80211_CHAN_HT; if (ch_flags & IWM_NVM_CHANNEL_40MHZ) channel->ic_flags |= IEEE80211_CHAN_40MHZ; } } } int iwm_mimo_enabled(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; return !sc->sc_nvm.sku_cap_mimo_disable && (ic->ic_userflags & IEEE80211_F_NOMIMO) == 0; } void iwm_setup_ht_rates(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint8_t rx_ant; /* TX is supported with the same MCS as RX. */ ic->ic_tx_mcs_set = IEEE80211_TX_MCS_SET_DEFINED; memset(ic->ic_sup_mcs, 0, sizeof(ic->ic_sup_mcs)); ic->ic_sup_mcs[0] = 0xff; /* MCS 0-7 */ if (!iwm_mimo_enabled(sc)) return; rx_ant = iwm_fw_valid_rx_ant(sc); if ((rx_ant & IWM_ANT_AB) == IWM_ANT_AB || (rx_ant & IWM_ANT_BC) == IWM_ANT_BC) ic->ic_sup_mcs[1] = 0xff; /* MCS 8-15 */ } void iwm_init_reorder_buffer(struct iwm_reorder_buffer *reorder_buf, uint16_t ssn, uint16_t buf_size) { reorder_buf->head_sn = ssn; reorder_buf->num_stored = 0; reorder_buf->buf_size = buf_size; reorder_buf->last_amsdu = 0; reorder_buf->last_sub_index = 0; reorder_buf->removed = 0; reorder_buf->valid = 0; reorder_buf->consec_oldsn_drops = 0; reorder_buf->consec_oldsn_ampdu_gp2 = 0; reorder_buf->consec_oldsn_prev_drop = 0; } void iwm_clear_reorder_buffer(struct iwm_softc *sc, struct iwm_rxba_data *rxba) { int i; struct iwm_reorder_buffer *reorder_buf = &rxba->reorder_buf; struct iwm_reorder_buf_entry *entry; for (i = 0; i < reorder_buf->buf_size; i++) { entry = &rxba->entries[i]; ml_purge(&entry->frames); timerclear(&entry->reorder_time); } reorder_buf->removed = 1; timeout_del(&reorder_buf->reorder_timer); timerclear(&rxba->last_rx); timeout_del(&rxba->session_timer); rxba->baid = IWM_RX_REORDER_DATA_INVALID_BAID; } #define RX_REORDER_BUF_TIMEOUT_MQ_USEC (100000ULL) void iwm_rx_ba_session_expired(void *arg) { struct iwm_rxba_data *rxba = arg; struct iwm_softc *sc = rxba->sc; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = ic->ic_bss; struct timeval now, timeout, expiry; int s; s = splnet(); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0 && ic->ic_state == IEEE80211_S_RUN && rxba->baid != IWM_RX_REORDER_DATA_INVALID_BAID) { getmicrouptime(&now); USEC_TO_TIMEVAL(RX_REORDER_BUF_TIMEOUT_MQ_USEC, &timeout); timeradd(&rxba->last_rx, &timeout, &expiry); if (timercmp(&now, &expiry, <)) { timeout_add_usec(&rxba->session_timer, rxba->timeout); } else { ic->ic_stats.is_ht_rx_ba_timeout++; ieee80211_delba_request(ic, ni, IEEE80211_REASON_TIMEOUT, 0, rxba->tid); } } splx(s); } void iwm_reorder_timer_expired(void *arg) { struct mbuf_list ml = MBUF_LIST_INITIALIZER(); struct iwm_reorder_buffer *buf = arg; struct iwm_rxba_data *rxba = iwm_rxba_data_from_reorder_buf(buf); struct iwm_reorder_buf_entry *entries = &rxba->entries[0]; struct iwm_softc *sc = rxba->sc; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = ic->ic_bss; int i, s; uint16_t sn = 0, index = 0; int expired = 0; int cont = 0; struct timeval now, timeout, expiry; if (!buf->num_stored || buf->removed) return; s = splnet(); getmicrouptime(&now); USEC_TO_TIMEVAL(RX_REORDER_BUF_TIMEOUT_MQ_USEC, &timeout); for (i = 0; i < buf->buf_size ; i++) { index = (buf->head_sn + i) % buf->buf_size; if (ml_empty(&entries[index].frames)) { /* * If there is a hole and the next frame didn't expire * we want to break and not advance SN. */ cont = 0; continue; } timeradd(&entries[index].reorder_time, &timeout, &expiry); if (!cont && timercmp(&now, &expiry, <)) break; expired = 1; /* continue until next hole after this expired frame */ cont = 1; sn = (buf->head_sn + (i + 1)) & 0xfff; } if (expired) { /* SN is set to the last expired frame + 1 */ iwm_release_frames(sc, ni, rxba, buf, sn, &ml); if_input(&sc->sc_ic.ic_if, &ml); ic->ic_stats.is_ht_rx_ba_window_gap_timeout++; } else { /* * If no frame expired and there are stored frames, index is now * pointing to the first unexpired frame - modify reorder timeout * accordingly. */ timeout_add_usec(&buf->reorder_timer, RX_REORDER_BUF_TIMEOUT_MQ_USEC); } splx(s); } #define IWM_MAX_RX_BA_SESSIONS 16 int iwm_sta_rx_agg(struct iwm_softc *sc, struct ieee80211_node *ni, uint8_t tid, uint16_t ssn, uint16_t winsize, int timeout_val, int start) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_add_sta_cmd cmd; struct iwm_node *in = (void *)ni; int err, s; uint32_t status; size_t cmdsize; struct iwm_rxba_data *rxba = NULL; uint8_t baid = 0; s = splnet(); if (start && sc->sc_rx_ba_sessions >= IWM_MAX_RX_BA_SESSIONS) { ieee80211_addba_req_refuse(ic, ni, tid); splx(s); return 0; } memset(&cmd, 0, sizeof(cmd)); cmd.sta_id = IWM_STATION_ID; cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); cmd.add_modify = IWM_STA_MODE_MODIFY; if (start) { cmd.add_immediate_ba_tid = (uint8_t)tid; cmd.add_immediate_ba_ssn = ssn; cmd.rx_ba_window = winsize; } else { cmd.remove_immediate_ba_tid = (uint8_t)tid; } cmd.modify_mask = start ? IWM_STA_MODIFY_ADD_BA_TID : IWM_STA_MODIFY_REMOVE_BA_TID; status = IWM_ADD_STA_SUCCESS; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmdsize = sizeof(cmd); else cmdsize = sizeof(struct iwm_add_sta_cmd_v7); err = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA, cmdsize, &cmd, &status); if (!err && (status & IWM_ADD_STA_STATUS_MASK) != IWM_ADD_STA_SUCCESS) err = EIO; if (err) { if (start) ieee80211_addba_req_refuse(ic, ni, tid); splx(s); return err; } if (sc->sc_mqrx_supported) { /* Deaggregation is done in hardware. */ if (start) { if (!(status & IWM_ADD_STA_BAID_VALID_MASK)) { ieee80211_addba_req_refuse(ic, ni, tid); splx(s); return EIO; } baid = (status & IWM_ADD_STA_BAID_MASK) >> IWM_ADD_STA_BAID_SHIFT; if (baid == IWM_RX_REORDER_DATA_INVALID_BAID || baid >= nitems(sc->sc_rxba_data)) { ieee80211_addba_req_refuse(ic, ni, tid); splx(s); return EIO; } rxba = &sc->sc_rxba_data[baid]; if (rxba->baid != IWM_RX_REORDER_DATA_INVALID_BAID) { ieee80211_addba_req_refuse(ic, ni, tid); splx(s); return 0; } rxba->sta_id = IWM_STATION_ID; rxba->tid = tid; rxba->baid = baid; rxba->timeout = timeout_val; getmicrouptime(&rxba->last_rx); iwm_init_reorder_buffer(&rxba->reorder_buf, ssn, winsize); if (timeout_val != 0) { struct ieee80211_rx_ba *ba; timeout_add_usec(&rxba->session_timer, timeout_val); /* XXX disable net80211's BA timeout handler */ ba = &ni->ni_rx_ba[tid]; ba->ba_timeout_val = 0; } } else { int i; for (i = 0; i < nitems(sc->sc_rxba_data); i++) { rxba = &sc->sc_rxba_data[i]; if (rxba->baid == IWM_RX_REORDER_DATA_INVALID_BAID) continue; if (rxba->tid != tid) continue; iwm_clear_reorder_buffer(sc, rxba); break; } } } if (start) { sc->sc_rx_ba_sessions++; ieee80211_addba_req_accept(ic, ni, tid); } else if (sc->sc_rx_ba_sessions > 0) sc->sc_rx_ba_sessions--; splx(s); return 0; } void iwm_mac_ctxt_task(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; int err, s = splnet(); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) || ic->ic_state != IEEE80211_S_RUN) { refcnt_rele_wake(&sc->task_refs); splx(s); return; } err = iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_MODIFY, 1); if (err) printf("%s: failed to update MAC\n", DEVNAME(sc)); iwm_unprotect_session(sc, in); refcnt_rele_wake(&sc->task_refs); splx(s); } void iwm_updateprot(struct ieee80211com *ic) { struct iwm_softc *sc = ic->ic_softc; if (ic->ic_state == IEEE80211_S_RUN && !task_pending(&sc->newstate_task)) iwm_add_task(sc, systq, &sc->mac_ctxt_task); } void iwm_updateslot(struct ieee80211com *ic) { struct iwm_softc *sc = ic->ic_softc; if (ic->ic_state == IEEE80211_S_RUN && !task_pending(&sc->newstate_task)) iwm_add_task(sc, systq, &sc->mac_ctxt_task); } void iwm_updateedca(struct ieee80211com *ic) { struct iwm_softc *sc = ic->ic_softc; if (ic->ic_state == IEEE80211_S_RUN && !task_pending(&sc->newstate_task)) iwm_add_task(sc, systq, &sc->mac_ctxt_task); } void iwm_phy_ctxt_task(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct ieee80211_node *ni = &in->in_ni; uint8_t chains, sco; int err, s = splnet(); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) || ic->ic_state != IEEE80211_S_RUN || in->in_phyctxt == NULL) { refcnt_rele_wake(&sc->task_refs); splx(s); return; } chains = iwm_mimo_enabled(sc) ? 2 : 1; if (ieee80211_node_supports_ht_chan40(ni)) sco = (ni->ni_htop0 & IEEE80211_HTOP0_SCO_MASK); else sco = IEEE80211_HTOP0_SCO_SCN; if (in->in_phyctxt->sco != sco) { err = iwm_phy_ctxt_update(sc, in->in_phyctxt, in->in_phyctxt->channel, chains, chains, 0, sco); if (err) printf("%s: failed to update PHY\n", DEVNAME(sc)); iwm_setrates(in, 0); } refcnt_rele_wake(&sc->task_refs); splx(s); } void iwm_updatechan(struct ieee80211com *ic) { struct iwm_softc *sc = ic->ic_softc; if (ic->ic_state == IEEE80211_S_RUN && !task_pending(&sc->newstate_task)) iwm_add_task(sc, systq, &sc->phy_ctxt_task); } void iwm_updatedtim(struct ieee80211com *ic) { struct iwm_softc *sc = ic->ic_softc; if (ic->ic_state == IEEE80211_S_RUN && !task_pending(&sc->newstate_task)) iwm_add_task(sc, systq, &sc->mac_ctxt_task); } int iwm_sta_tx_agg(struct iwm_softc *sc, struct ieee80211_node *ni, uint8_t tid, uint16_t ssn, uint16_t winsize, int start) { struct iwm_add_sta_cmd cmd; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ni; int qid = IWM_FIRST_AGG_TX_QUEUE + tid; struct iwm_tx_ring *ring; enum ieee80211_edca_ac ac; int fifo; uint32_t status; int err; size_t cmdsize; /* Ensure we can map this TID to an aggregation queue. */ if (tid >= IWM_MAX_TID_COUNT || qid > IWM_LAST_AGG_TX_QUEUE) return ENOSPC; if (start) { if ((sc->tx_ba_queue_mask & (1 << qid)) != 0) return 0; } else { if ((sc->tx_ba_queue_mask & (1 << qid)) == 0) return 0; } ring = &sc->txq[qid]; ac = iwm_tid_to_ac[tid]; fifo = iwm_ac_to_tx_fifo[ac]; memset(&cmd, 0, sizeof(cmd)); cmd.sta_id = IWM_STATION_ID; cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); cmd.add_modify = IWM_STA_MODE_MODIFY; if (start) { /* Enable Tx aggregation for this queue. */ in->tid_disable_ampdu &= ~(1 << tid); in->tfd_queue_msk |= (1 << qid); } else { in->tid_disable_ampdu |= (1 << tid); /* * Queue remains enabled in the TFD queue mask * until we leave RUN state. */ err = iwm_flush_sta(sc, in); if (err) return err; } cmd.tfd_queue_msk |= htole32(in->tfd_queue_msk); cmd.tid_disable_tx = htole16(in->tid_disable_ampdu); cmd.modify_mask = (IWM_STA_MODIFY_QUEUES | IWM_STA_MODIFY_TID_DISABLE_TX); if (start && (sc->qenablemsk & (1 << qid)) == 0) { if (!iwm_nic_lock(sc)) { if (start) ieee80211_addba_resp_refuse(ic, ni, tid, IEEE80211_STATUS_UNSPECIFIED); return EBUSY; } err = iwm_enable_txq(sc, IWM_STATION_ID, qid, fifo, 1, tid, ssn); iwm_nic_unlock(sc); if (err) { printf("%s: could not enable Tx queue %d (error %d)\n", DEVNAME(sc), qid, err); if (start) ieee80211_addba_resp_refuse(ic, ni, tid, IEEE80211_STATUS_UNSPECIFIED); return err; } /* * If iwm_enable_txq() employed the SCD hardware bug * workaround we must skip the frame with seqnum SSN. */ if (ring->cur != IWM_AGG_SSN_TO_TXQ_IDX(ssn)) { ssn = (ssn + 1) & 0xfff; KASSERT(ring->cur == IWM_AGG_SSN_TO_TXQ_IDX(ssn)); ieee80211_output_ba_move_window(ic, ni, tid, ssn); ni->ni_qos_txseqs[tid] = ssn; } } if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmdsize = sizeof(cmd); else cmdsize = sizeof(struct iwm_add_sta_cmd_v7); status = 0; err = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA, cmdsize, &cmd, &status); if (!err && (status & IWM_ADD_STA_STATUS_MASK) != IWM_ADD_STA_SUCCESS) err = EIO; if (err) { printf("%s: could not update sta (error %d)\n", DEVNAME(sc), err); if (start) ieee80211_addba_resp_refuse(ic, ni, tid, IEEE80211_STATUS_UNSPECIFIED); return err; } if (start) { sc->tx_ba_queue_mask |= (1 << qid); ieee80211_addba_resp_accept(ic, ni, tid); } else { sc->tx_ba_queue_mask &= ~(1 << qid); /* * Clear pending frames but keep the queue enabled. * Firmware panics if we disable the queue here. */ iwm_txq_advance(sc, ring, ring->cur); iwm_clear_oactive(sc, ring); } return 0; } void iwm_ba_task(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = ic->ic_bss; int s = splnet(); int tid, err = 0; if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) || ic->ic_state != IEEE80211_S_RUN) { refcnt_rele_wake(&sc->task_refs); splx(s); return; } for (tid = 0; tid < IWM_MAX_TID_COUNT && !err; tid++) { if (sc->sc_flags & IWM_FLAG_SHUTDOWN) break; if (sc->ba_rx.start_tidmask & (1 << tid)) { struct ieee80211_rx_ba *ba = &ni->ni_rx_ba[tid]; err = iwm_sta_rx_agg(sc, ni, tid, ba->ba_winstart, ba->ba_winsize, ba->ba_timeout_val, 1); sc->ba_rx.start_tidmask &= ~(1 << tid); } else if (sc->ba_rx.stop_tidmask & (1 << tid)) { err = iwm_sta_rx_agg(sc, ni, tid, 0, 0, 0, 0); sc->ba_rx.stop_tidmask &= ~(1 << tid); } } for (tid = 0; tid < IWM_MAX_TID_COUNT && !err; tid++) { if (sc->sc_flags & IWM_FLAG_SHUTDOWN) break; if (sc->ba_tx.start_tidmask & (1 << tid)) { struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; err = iwm_sta_tx_agg(sc, ni, tid, ba->ba_winstart, ba->ba_winsize, 1); sc->ba_tx.start_tidmask &= ~(1 << tid); } else if (sc->ba_tx.stop_tidmask & (1 << tid)) { err = iwm_sta_tx_agg(sc, ni, tid, 0, 0, 0); sc->ba_tx.stop_tidmask &= ~(1 << tid); } } /* * We "recover" from failure to start or stop a BA session * by resetting the device. */ if (err && (sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) task_add(systq, &sc->init_task); refcnt_rele_wake(&sc->task_refs); splx(s); } /* * This function is called by upper layer when an ADDBA request is received * from another STA and before the ADDBA response is sent. */ int iwm_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni, uint8_t tid) { struct iwm_softc *sc = IC2IFP(ic)->if_softc; if (sc->sc_rx_ba_sessions >= IWM_MAX_RX_BA_SESSIONS || tid > IWM_MAX_TID_COUNT) return ENOSPC; if (sc->ba_rx.start_tidmask & (1 << tid)) return EBUSY; sc->ba_rx.start_tidmask |= (1 << tid); iwm_add_task(sc, systq, &sc->ba_task); return EBUSY; } /* * This function is called by upper layer on teardown of an HT-immediate * Block Ack agreement (eg. upon receipt of a DELBA frame). */ void iwm_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, uint8_t tid) { struct iwm_softc *sc = IC2IFP(ic)->if_softc; if (tid > IWM_MAX_TID_COUNT || sc->ba_rx.stop_tidmask & (1 << tid)) return; sc->ba_rx.stop_tidmask |= (1 << tid); iwm_add_task(sc, systq, &sc->ba_task); } int iwm_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni, uint8_t tid) { struct iwm_softc *sc = IC2IFP(ic)->if_softc; struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; int qid = IWM_FIRST_AGG_TX_QUEUE + tid; /* We only implement Tx aggregation with DQA-capable firmware. */ if (!isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) return ENOTSUP; /* Ensure we can map this TID to an aggregation queue. */ if (tid >= IWM_MAX_TID_COUNT) return EINVAL; /* We only support a fixed Tx aggregation window size, for now. */ if (ba->ba_winsize != IWM_FRAME_LIMIT) return ENOTSUP; /* Is firmware already using Tx aggregation on this queue? */ if ((sc->tx_ba_queue_mask & (1 << qid)) != 0) return ENOSPC; /* Are we already processing an ADDBA request? */ if (sc->ba_tx.start_tidmask & (1 << tid)) return EBUSY; sc->ba_tx.start_tidmask |= (1 << tid); iwm_add_task(sc, systq, &sc->ba_task); return EBUSY; } void iwm_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, uint8_t tid) { struct iwm_softc *sc = IC2IFP(ic)->if_softc; int qid = IWM_FIRST_AGG_TX_QUEUE + tid; if (tid > IWM_MAX_TID_COUNT || sc->ba_tx.stop_tidmask & (1 << tid)) return; /* Is firmware currently using Tx aggregation on this queue? */ if ((sc->tx_ba_queue_mask & (1 << qid)) == 0) return; sc->ba_tx.stop_tidmask |= (1 << tid); iwm_add_task(sc, systq, &sc->ba_task); } void iwm_set_hw_address_8000(struct iwm_softc *sc, struct iwm_nvm_data *data, const uint16_t *mac_override, const uint16_t *nvm_hw) { const uint8_t *hw_addr; if (mac_override) { static const uint8_t reserved_mac[] = { 0x02, 0xcc, 0xaa, 0xff, 0xee, 0x00 }; hw_addr = (const uint8_t *)(mac_override + IWM_MAC_ADDRESS_OVERRIDE_8000); /* * Store the MAC address from MAO section. * No byte swapping is required in MAO section */ memcpy(data->hw_addr, hw_addr, ETHER_ADDR_LEN); /* * Force the use of the OTP MAC address in case of reserved MAC * address in the NVM, or if address is given but invalid. */ if (memcmp(reserved_mac, hw_addr, ETHER_ADDR_LEN) != 0 && (memcmp(etherbroadcastaddr, data->hw_addr, sizeof(etherbroadcastaddr)) != 0) && (memcmp(etheranyaddr, data->hw_addr, sizeof(etheranyaddr)) != 0) && !ETHER_IS_MULTICAST(data->hw_addr)) return; } if (nvm_hw) { /* Read the mac address from WFMP registers. */ uint32_t mac_addr0, mac_addr1; if (!iwm_nic_lock(sc)) goto out; mac_addr0 = htole32(iwm_read_prph(sc, IWM_WFMP_MAC_ADDR_0)); mac_addr1 = htole32(iwm_read_prph(sc, IWM_WFMP_MAC_ADDR_1)); iwm_nic_unlock(sc); hw_addr = (const uint8_t *)&mac_addr0; data->hw_addr[0] = hw_addr[3]; data->hw_addr[1] = hw_addr[2]; data->hw_addr[2] = hw_addr[1]; data->hw_addr[3] = hw_addr[0]; hw_addr = (const uint8_t *)&mac_addr1; data->hw_addr[4] = hw_addr[1]; data->hw_addr[5] = hw_addr[0]; return; } out: printf("%s: mac address not found\n", DEVNAME(sc)); memset(data->hw_addr, 0, sizeof(data->hw_addr)); } int iwm_parse_nvm_data(struct iwm_softc *sc, const uint16_t *nvm_hw, const uint16_t *nvm_sw, const uint16_t *nvm_calib, const uint16_t *mac_override, const uint16_t *phy_sku, const uint16_t *regulatory, int n_regulatory) { struct iwm_nvm_data *data = &sc->sc_nvm; uint8_t hw_addr[ETHER_ADDR_LEN]; uint32_t sku; uint16_t lar_config; data->nvm_version = le16_to_cpup(nvm_sw + IWM_NVM_VERSION); if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { uint16_t radio_cfg = le16_to_cpup(nvm_sw + IWM_RADIO_CFG); data->radio_cfg_type = IWM_NVM_RF_CFG_TYPE_MSK(radio_cfg); data->radio_cfg_step = IWM_NVM_RF_CFG_STEP_MSK(radio_cfg); data->radio_cfg_dash = IWM_NVM_RF_CFG_DASH_MSK(radio_cfg); data->radio_cfg_pnum = IWM_NVM_RF_CFG_PNUM_MSK(radio_cfg); sku = le16_to_cpup(nvm_sw + IWM_SKU); } else { uint32_t radio_cfg = le32_to_cpup((uint32_t *)(phy_sku + IWM_RADIO_CFG_8000)); data->radio_cfg_type = IWM_NVM_RF_CFG_TYPE_MSK_8000(radio_cfg); data->radio_cfg_step = IWM_NVM_RF_CFG_STEP_MSK_8000(radio_cfg); data->radio_cfg_dash = IWM_NVM_RF_CFG_DASH_MSK_8000(radio_cfg); data->radio_cfg_pnum = IWM_NVM_RF_CFG_PNUM_MSK_8000(radio_cfg); data->valid_tx_ant = IWM_NVM_RF_CFG_TX_ANT_MSK_8000(radio_cfg); data->valid_rx_ant = IWM_NVM_RF_CFG_RX_ANT_MSK_8000(radio_cfg); sku = le32_to_cpup((uint32_t *)(phy_sku + IWM_SKU_8000)); } data->sku_cap_band_24GHz_enable = sku & IWM_NVM_SKU_CAP_BAND_24GHZ; data->sku_cap_band_52GHz_enable = sku & IWM_NVM_SKU_CAP_BAND_52GHZ; data->sku_cap_11n_enable = sku & IWM_NVM_SKU_CAP_11N_ENABLE; data->sku_cap_mimo_disable = sku & IWM_NVM_SKU_CAP_MIMO_DISABLE; if (sc->sc_device_family >= IWM_DEVICE_FAMILY_8000) { uint16_t lar_offset = data->nvm_version < 0xE39 ? IWM_NVM_LAR_OFFSET_8000_OLD : IWM_NVM_LAR_OFFSET_8000; lar_config = le16_to_cpup(regulatory + lar_offset); data->lar_enabled = !!(lar_config & IWM_NVM_LAR_ENABLED_8000); data->n_hw_addrs = le16_to_cpup(nvm_sw + IWM_N_HW_ADDRS_8000); } else data->n_hw_addrs = le16_to_cpup(nvm_sw + IWM_N_HW_ADDRS); /* The byte order is little endian 16 bit, meaning 214365 */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { memcpy(hw_addr, nvm_hw + IWM_HW_ADDR, ETHER_ADDR_LEN); data->hw_addr[0] = hw_addr[1]; data->hw_addr[1] = hw_addr[0]; data->hw_addr[2] = hw_addr[3]; data->hw_addr[3] = hw_addr[2]; data->hw_addr[4] = hw_addr[5]; data->hw_addr[5] = hw_addr[4]; } else iwm_set_hw_address_8000(sc, data, mac_override, nvm_hw); if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { if (sc->nvm_type == IWM_NVM_SDP) { iwm_init_channel_map(sc, regulatory, iwm_nvm_channels, MIN(n_regulatory, nitems(iwm_nvm_channels))); } else { iwm_init_channel_map(sc, &nvm_sw[IWM_NVM_CHANNELS], iwm_nvm_channels, nitems(iwm_nvm_channels)); } } else iwm_init_channel_map(sc, ®ulatory[IWM_NVM_CHANNELS_8000], iwm_nvm_channels_8000, MIN(n_regulatory, nitems(iwm_nvm_channels_8000))); data->calib_version = 255; /* TODO: this value will prevent some checks from failing, we need to check if this field is still needed, and if it does, where is it in the NVM */ return 0; } int iwm_parse_nvm_sections(struct iwm_softc *sc, struct iwm_nvm_section *sections) { const uint16_t *hw, *sw, *calib, *mac_override = NULL, *phy_sku = NULL; const uint16_t *regulatory = NULL; int n_regulatory = 0; /* Checking for required sections */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { if (!sections[IWM_NVM_SECTION_TYPE_SW].data || !sections[IWM_NVM_SECTION_TYPE_HW].data) { return ENOENT; } hw = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_HW].data; if (sc->nvm_type == IWM_NVM_SDP) { if (!sections[IWM_NVM_SECTION_TYPE_REGULATORY_SDP].data) return ENOENT; regulatory = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_REGULATORY_SDP].data; n_regulatory = sections[IWM_NVM_SECTION_TYPE_REGULATORY_SDP].length; } } else if (sc->sc_device_family >= IWM_DEVICE_FAMILY_8000) { /* SW and REGULATORY sections are mandatory */ if (!sections[IWM_NVM_SECTION_TYPE_SW].data || !sections[IWM_NVM_SECTION_TYPE_REGULATORY].data) { return ENOENT; } /* MAC_OVERRIDE or at least HW section must exist */ if (!sections[IWM_NVM_SECTION_TYPE_HW_8000].data && !sections[IWM_NVM_SECTION_TYPE_MAC_OVERRIDE].data) { return ENOENT; } /* PHY_SKU section is mandatory in B0 */ if (!sections[IWM_NVM_SECTION_TYPE_PHY_SKU].data) { return ENOENT; } regulatory = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_REGULATORY].data; n_regulatory = sections[IWM_NVM_SECTION_TYPE_REGULATORY].length; hw = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_HW_8000].data; mac_override = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_MAC_OVERRIDE].data; phy_sku = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_PHY_SKU].data; } else { panic("unknown device family %d", sc->sc_device_family); } sw = (const uint16_t *)sections[IWM_NVM_SECTION_TYPE_SW].data; calib = (const uint16_t *) sections[IWM_NVM_SECTION_TYPE_CALIBRATION].data; /* XXX should pass in the length of every section */ return iwm_parse_nvm_data(sc, hw, sw, calib, mac_override, phy_sku, regulatory, n_regulatory); } int iwm_nvm_init(struct iwm_softc *sc) { struct iwm_nvm_section nvm_sections[IWM_NVM_NUM_OF_SECTIONS]; int i, section, err; uint16_t len; uint8_t *buf; const size_t bufsz = sc->sc_nvm_max_section_size; memset(nvm_sections, 0, sizeof(nvm_sections)); buf = malloc(bufsz, M_DEVBUF, M_WAIT); if (buf == NULL) return ENOMEM; for (i = 0; i < nitems(iwm_nvm_to_read); i++) { section = iwm_nvm_to_read[i]; KASSERT(section <= nitems(nvm_sections)); err = iwm_nvm_read_section(sc, section, buf, &len, bufsz); if (err) { err = 0; continue; } nvm_sections[section].data = malloc(len, M_DEVBUF, M_WAIT); if (nvm_sections[section].data == NULL) { err = ENOMEM; break; } memcpy(nvm_sections[section].data, buf, len); nvm_sections[section].length = len; } free(buf, M_DEVBUF, bufsz); if (err == 0) err = iwm_parse_nvm_sections(sc, nvm_sections); for (i = 0; i < IWM_NVM_NUM_OF_SECTIONS; i++) { if (nvm_sections[i].data != NULL) free(nvm_sections[i].data, M_DEVBUF, nvm_sections[i].length); } return err; } int iwm_firmware_load_sect(struct iwm_softc *sc, uint32_t dst_addr, const uint8_t *section, uint32_t byte_cnt) { int err = EINVAL; uint32_t chunk_sz, offset; chunk_sz = MIN(IWM_FH_MEM_TB_MAX_LENGTH, byte_cnt); for (offset = 0; offset < byte_cnt; offset += chunk_sz) { uint32_t addr, len; const uint8_t *data; addr = dst_addr + offset; len = MIN(chunk_sz, byte_cnt - offset); data = section + offset; err = iwm_firmware_load_chunk(sc, addr, data, len); if (err) break; } return err; } int iwm_firmware_load_chunk(struct iwm_softc *sc, uint32_t dst_addr, const uint8_t *chunk, uint32_t byte_cnt) { struct iwm_dma_info *dma = &sc->fw_dma; int err; /* Copy firmware chunk into pre-allocated DMA-safe memory. */ memcpy(dma->vaddr, chunk, byte_cnt); bus_dmamap_sync(sc->sc_dmat, dma->map, 0, byte_cnt, BUS_DMASYNC_PREWRITE); if (dst_addr >= IWM_FW_MEM_EXTENDED_START && dst_addr <= IWM_FW_MEM_EXTENDED_END) { err = iwm_set_bits_prph(sc, IWM_LMPM_CHICK, IWM_LMPM_CHICK_EXTENDED_ADDR_SPACE); if (err) return err; } sc->sc_fw_chunk_done = 0; if (!iwm_nic_lock(sc)) return EBUSY; IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(IWM_FH_SRVC_CHNL), IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE); IWM_WRITE(sc, IWM_FH_SRVC_CHNL_SRAM_ADDR_REG(IWM_FH_SRVC_CHNL), dst_addr); IWM_WRITE(sc, IWM_FH_TFDIB_CTRL0_REG(IWM_FH_SRVC_CHNL), dma->paddr & IWM_FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); IWM_WRITE(sc, IWM_FH_TFDIB_CTRL1_REG(IWM_FH_SRVC_CHNL), (iwm_get_dma_hi_addr(dma->paddr) << IWM_FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt); IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_BUF_STS_REG(IWM_FH_SRVC_CHNL), 1 << IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM | 1 << IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX | IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID); IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(IWM_FH_SRVC_CHNL), IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE | IWM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD); iwm_nic_unlock(sc); /* Wait for this segment to load. */ err = 0; while (!sc->sc_fw_chunk_done) { err = tsleep_nsec(&sc->sc_fw, 0, "iwmfw", SEC_TO_NSEC(1)); if (err) break; } if (!sc->sc_fw_chunk_done) printf("%s: fw chunk addr 0x%x len %d failed to load\n", DEVNAME(sc), dst_addr, byte_cnt); if (dst_addr >= IWM_FW_MEM_EXTENDED_START && dst_addr <= IWM_FW_MEM_EXTENDED_END) { int err2 = iwm_clear_bits_prph(sc, IWM_LMPM_CHICK, IWM_LMPM_CHICK_EXTENDED_ADDR_SPACE); if (!err) err = err2; } return err; } int iwm_load_firmware_7000(struct iwm_softc *sc, enum iwm_ucode_type ucode_type) { struct iwm_fw_sects *fws; int err, i; void *data; uint32_t dlen; uint32_t offset; fws = &sc->sc_fw.fw_sects[ucode_type]; for (i = 0; i < fws->fw_count; i++) { data = fws->fw_sect[i].fws_data; dlen = fws->fw_sect[i].fws_len; offset = fws->fw_sect[i].fws_devoff; if (dlen > sc->sc_fwdmasegsz) { err = EFBIG; } else err = iwm_firmware_load_sect(sc, offset, data, dlen); if (err) { printf("%s: could not load firmware chunk %u of %u\n", DEVNAME(sc), i, fws->fw_count); return err; } } iwm_enable_interrupts(sc); IWM_WRITE(sc, IWM_CSR_RESET, 0); return 0; } int iwm_load_cpu_sections_8000(struct iwm_softc *sc, struct iwm_fw_sects *fws, int cpu, int *first_ucode_section) { int shift_param; int i, err = 0, sec_num = 0x1; uint32_t val, last_read_idx = 0; void *data; uint32_t dlen; uint32_t offset; if (cpu == 1) { shift_param = 0; *first_ucode_section = 0; } else { shift_param = 16; (*first_ucode_section)++; } for (i = *first_ucode_section; i < IWM_UCODE_SECT_MAX; i++) { last_read_idx = i; data = fws->fw_sect[i].fws_data; dlen = fws->fw_sect[i].fws_len; offset = fws->fw_sect[i].fws_devoff; /* * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between * CPU1 to CPU2. * PAGING_SEPARATOR_SECTION delimiter - separate between * CPU2 non paged to CPU2 paging sec. */ if (!data || offset == IWM_CPU1_CPU2_SEPARATOR_SECTION || offset == IWM_PAGING_SEPARATOR_SECTION) break; if (dlen > sc->sc_fwdmasegsz) { err = EFBIG; } else err = iwm_firmware_load_sect(sc, offset, data, dlen); if (err) { printf("%s: could not load firmware chunk %d " "(error %d)\n", DEVNAME(sc), i, err); return err; } /* Notify the ucode of the loaded section number and status */ if (iwm_nic_lock(sc)) { val = IWM_READ(sc, IWM_FH_UCODE_LOAD_STATUS); val = val | (sec_num << shift_param); IWM_WRITE(sc, IWM_FH_UCODE_LOAD_STATUS, val); sec_num = (sec_num << 1) | 0x1; iwm_nic_unlock(sc); } else { err = EBUSY; printf("%s: could not load firmware chunk %d " "(error %d)\n", DEVNAME(sc), i, err); return err; } } *first_ucode_section = last_read_idx; if (iwm_nic_lock(sc)) { if (cpu == 1) IWM_WRITE(sc, IWM_FH_UCODE_LOAD_STATUS, 0xFFFF); else IWM_WRITE(sc, IWM_FH_UCODE_LOAD_STATUS, 0xFFFFFFFF); iwm_nic_unlock(sc); } else { err = EBUSY; printf("%s: could not finalize firmware loading (error %d)\n", DEVNAME(sc), err); return err; } return 0; } int iwm_load_firmware_8000(struct iwm_softc *sc, enum iwm_ucode_type ucode_type) { struct iwm_fw_sects *fws; int err = 0; int first_ucode_section; fws = &sc->sc_fw.fw_sects[ucode_type]; /* configure the ucode to be ready to get the secured image */ /* release CPU reset */ if (iwm_nic_lock(sc)) { iwm_write_prph(sc, IWM_RELEASE_CPU_RESET, IWM_RELEASE_CPU_RESET_BIT); iwm_nic_unlock(sc); } /* load to FW the binary Secured sections of CPU1 */ err = iwm_load_cpu_sections_8000(sc, fws, 1, &first_ucode_section); if (err) return err; /* load to FW the binary sections of CPU2 */ err = iwm_load_cpu_sections_8000(sc, fws, 2, &first_ucode_section); if (err) return err; iwm_enable_interrupts(sc); return 0; } int iwm_load_firmware(struct iwm_softc *sc, enum iwm_ucode_type ucode_type) { int err; splassert(IPL_NET); sc->sc_uc.uc_intr = 0; sc->sc_uc.uc_ok = 0; if (sc->sc_device_family >= IWM_DEVICE_FAMILY_8000) err = iwm_load_firmware_8000(sc, ucode_type); else err = iwm_load_firmware_7000(sc, ucode_type); if (err) return err; /* wait for the firmware to load */ err = tsleep_nsec(&sc->sc_uc, 0, "iwmuc", SEC_TO_NSEC(1)); if (err || !sc->sc_uc.uc_ok) printf("%s: could not load firmware\n", DEVNAME(sc)); return err; } int iwm_start_fw(struct iwm_softc *sc, enum iwm_ucode_type ucode_type) { int err; IWM_WRITE(sc, IWM_CSR_INT, ~0); err = iwm_nic_init(sc); if (err) { printf("%s: unable to init nic\n", DEVNAME(sc)); return err; } /* make sure rfkill handshake bits are cleared */ IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL); IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); /* clear (again), then enable firmware load interrupt */ IWM_WRITE(sc, IWM_CSR_INT, ~0); iwm_enable_fwload_interrupt(sc); /* really make sure rfkill handshake bits are cleared */ /* maybe we should write a few times more? just to make sure */ IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL); IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL); return iwm_load_firmware(sc, ucode_type); } int iwm_send_tx_ant_cfg(struct iwm_softc *sc, uint8_t valid_tx_ant) { struct iwm_tx_ant_cfg_cmd tx_ant_cmd = { .valid = htole32(valid_tx_ant), }; return iwm_send_cmd_pdu(sc, IWM_TX_ANT_CONFIGURATION_CMD, 0, sizeof(tx_ant_cmd), &tx_ant_cmd); } int iwm_send_phy_cfg_cmd(struct iwm_softc *sc) { struct iwm_phy_cfg_cmd phy_cfg_cmd; enum iwm_ucode_type ucode_type = sc->sc_uc_current; phy_cfg_cmd.phy_cfg = htole32(sc->sc_fw_phy_config | sc->sc_extra_phy_config); phy_cfg_cmd.calib_control.event_trigger = sc->sc_default_calib[ucode_type].event_trigger; phy_cfg_cmd.calib_control.flow_trigger = sc->sc_default_calib[ucode_type].flow_trigger; return iwm_send_cmd_pdu(sc, IWM_PHY_CONFIGURATION_CMD, 0, sizeof(phy_cfg_cmd), &phy_cfg_cmd); } int iwm_send_dqa_cmd(struct iwm_softc *sc) { struct iwm_dqa_enable_cmd dqa_cmd = { .cmd_queue = htole32(IWM_DQA_CMD_QUEUE), }; uint32_t cmd_id; cmd_id = iwm_cmd_id(IWM_DQA_ENABLE_CMD, IWM_DATA_PATH_GROUP, 0); return iwm_send_cmd_pdu(sc, cmd_id, 0, sizeof(dqa_cmd), &dqa_cmd); } int iwm_load_ucode_wait_alive(struct iwm_softc *sc, enum iwm_ucode_type ucode_type) { enum iwm_ucode_type old_type = sc->sc_uc_current; struct iwm_fw_sects *fw = &sc->sc_fw.fw_sects[ucode_type]; int err; err = iwm_read_firmware(sc); if (err) return err; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) sc->cmdqid = IWM_DQA_CMD_QUEUE; else sc->cmdqid = IWM_CMD_QUEUE; sc->sc_uc_current = ucode_type; err = iwm_start_fw(sc, ucode_type); if (err) { sc->sc_uc_current = old_type; return err; } err = iwm_post_alive(sc); if (err) return err; /* * configure and operate fw paging mechanism. * driver configures the paging flow only once, CPU2 paging image * included in the IWM_UCODE_INIT image. */ if (fw->paging_mem_size) { err = iwm_save_fw_paging(sc, fw); if (err) { printf("%s: failed to save the FW paging image\n", DEVNAME(sc)); return err; } err = iwm_send_paging_cmd(sc, fw); if (err) { printf("%s: failed to send the paging cmd\n", DEVNAME(sc)); iwm_free_fw_paging(sc); return err; } } return 0; } int iwm_run_init_mvm_ucode(struct iwm_softc *sc, int justnvm) { const int wait_flags = (IWM_INIT_COMPLETE | IWM_CALIB_COMPLETE); int err, s; if ((sc->sc_flags & IWM_FLAG_RFKILL) && !justnvm) { printf("%s: radio is disabled by hardware switch\n", DEVNAME(sc)); return EPERM; } s = splnet(); sc->sc_init_complete = 0; err = iwm_load_ucode_wait_alive(sc, IWM_UCODE_TYPE_INIT); if (err) { printf("%s: failed to load init firmware\n", DEVNAME(sc)); splx(s); return err; } if (sc->sc_device_family < IWM_DEVICE_FAMILY_8000) { err = iwm_send_bt_init_conf(sc); if (err) { printf("%s: could not init bt coex (error %d)\n", DEVNAME(sc), err); splx(s); return err; } } if (justnvm) { err = iwm_nvm_init(sc); if (err) { printf("%s: failed to read nvm\n", DEVNAME(sc)); splx(s); return err; } if (IEEE80211_ADDR_EQ(etheranyaddr, sc->sc_ic.ic_myaddr)) IEEE80211_ADDR_COPY(sc->sc_ic.ic_myaddr, sc->sc_nvm.hw_addr); splx(s); return 0; } err = iwm_sf_config(sc, IWM_SF_INIT_OFF); if (err) { splx(s); return err; } /* Send TX valid antennas before triggering calibrations */ err = iwm_send_tx_ant_cfg(sc, iwm_fw_valid_tx_ant(sc)); if (err) { splx(s); return err; } /* * Send phy configurations command to init uCode * to start the 16.0 uCode init image internal calibrations. */ err = iwm_send_phy_cfg_cmd(sc); if (err) { splx(s); return err; } /* * Nothing to do but wait for the init complete and phy DB * notifications from the firmware. */ while ((sc->sc_init_complete & wait_flags) != wait_flags) { err = tsleep_nsec(&sc->sc_init_complete, 0, "iwminit", SEC_TO_NSEC(2)); if (err) break; } splx(s); return err; } int iwm_config_ltr(struct iwm_softc *sc) { struct iwm_ltr_config_cmd cmd = { .flags = htole32(IWM_LTR_CFG_FLAG_FEATURE_ENABLE), }; if (!sc->sc_ltr_enabled) return 0; return iwm_send_cmd_pdu(sc, IWM_LTR_CONFIG, 0, sizeof(cmd), &cmd); } int iwm_rx_addbuf(struct iwm_softc *sc, int size, int idx) { struct iwm_rx_ring *ring = &sc->rxq; struct iwm_rx_data *data = &ring->data[idx]; struct mbuf *m; int err; int fatal = 0; m = m_gethdr(M_DONTWAIT, MT_DATA); if (m == NULL) return ENOBUFS; if (size <= MCLBYTES) { MCLGET(m, M_DONTWAIT); } else { MCLGETL(m, M_DONTWAIT, IWM_RBUF_SIZE); } if ((m->m_flags & M_EXT) == 0) { m_freem(m); return ENOBUFS; } if (data->m != NULL) { bus_dmamap_unload(sc->sc_dmat, data->map); fatal = 1; } m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; err = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, BUS_DMA_READ|BUS_DMA_NOWAIT); if (err) { /* XXX */ if (fatal) panic("iwm: could not load RX mbuf"); m_freem(m); return err; } data->m = m; bus_dmamap_sync(sc->sc_dmat, data->map, 0, size, BUS_DMASYNC_PREREAD); /* Update RX descriptor. */ if (sc->sc_mqrx_supported) { ((uint64_t *)ring->desc)[idx] = htole64(data->map->dm_segs[0].ds_addr); bus_dmamap_sync(sc->sc_dmat, ring->free_desc_dma.map, idx * sizeof(uint64_t), sizeof(uint64_t), BUS_DMASYNC_PREWRITE); } else { ((uint32_t *)ring->desc)[idx] = htole32(data->map->dm_segs[0].ds_addr >> 8); bus_dmamap_sync(sc->sc_dmat, ring->free_desc_dma.map, idx * sizeof(uint32_t), sizeof(uint32_t), BUS_DMASYNC_PREWRITE); } return 0; } /* * RSSI values are reported by the FW as positive values - need to negate * to obtain their dBM. Account for missing antennas by replacing 0 * values by -256dBm: practically 0 power and a non-feasible 8 bit value. */ int iwm_get_signal_strength(struct iwm_softc *sc, struct iwm_rx_phy_info *phy_info) { int energy_a, energy_b, energy_c, max_energy; uint32_t val; val = le32toh(phy_info->non_cfg_phy[IWM_RX_INFO_ENERGY_ANT_ABC_IDX]); energy_a = (val & IWM_RX_INFO_ENERGY_ANT_A_MSK) >> IWM_RX_INFO_ENERGY_ANT_A_POS; energy_a = energy_a ? -energy_a : -256; energy_b = (val & IWM_RX_INFO_ENERGY_ANT_B_MSK) >> IWM_RX_INFO_ENERGY_ANT_B_POS; energy_b = energy_b ? -energy_b : -256; energy_c = (val & IWM_RX_INFO_ENERGY_ANT_C_MSK) >> IWM_RX_INFO_ENERGY_ANT_C_POS; energy_c = energy_c ? -energy_c : -256; max_energy = MAX(energy_a, energy_b); max_energy = MAX(max_energy, energy_c); return max_energy; } int iwm_rxmq_get_signal_strength(struct iwm_softc *sc, struct iwm_rx_mpdu_desc *desc) { int energy_a, energy_b; energy_a = desc->v1.energy_a; energy_b = desc->v1.energy_b; energy_a = energy_a ? -energy_a : -256; energy_b = energy_b ? -energy_b : -256; return MAX(energy_a, energy_b); } void iwm_rx_rx_phy_cmd(struct iwm_softc *sc, struct iwm_rx_packet *pkt, struct iwm_rx_data *data) { struct iwm_rx_phy_info *phy_info = (void *)pkt->data; bus_dmamap_sync(sc->sc_dmat, data->map, sizeof(*pkt), sizeof(*phy_info), BUS_DMASYNC_POSTREAD); memcpy(&sc->sc_last_phy_info, phy_info, sizeof(sc->sc_last_phy_info)); } /* * Retrieve the average noise (in dBm) among receivers. */ int iwm_get_noise(const struct iwm_statistics_rx_non_phy *stats) { int i, total, nbant, noise; total = nbant = noise = 0; for (i = 0; i < 3; i++) { noise = letoh32(stats->beacon_silence_rssi[i]) & 0xff; if (noise) { total += noise; nbant++; } } /* There should be at least one antenna but check anyway. */ return (nbant == 0) ? -127 : (total / nbant) - 107; } int iwm_ccmp_decap(struct iwm_softc *sc, struct mbuf *m, struct ieee80211_node *ni, struct ieee80211_rxinfo *rxi) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_key *k = &ni->ni_pairwise_key; struct ieee80211_frame *wh; uint64_t pn, *prsc; uint8_t *ivp; uint8_t tid; int hdrlen, hasqos; wh = mtod(m, struct ieee80211_frame *); hdrlen = ieee80211_get_hdrlen(wh); ivp = (uint8_t *)wh + hdrlen; /* Check that ExtIV bit is set. */ if (!(ivp[3] & IEEE80211_WEP_EXTIV)) return 1; hasqos = ieee80211_has_qos(wh); tid = hasqos ? ieee80211_get_qos(wh) & IEEE80211_QOS_TID : 0; prsc = &k->k_rsc[tid]; /* Extract the 48-bit PN from the CCMP header. */ pn = (uint64_t)ivp[0] | (uint64_t)ivp[1] << 8 | (uint64_t)ivp[4] << 16 | (uint64_t)ivp[5] << 24 | (uint64_t)ivp[6] << 32 | (uint64_t)ivp[7] << 40; if (rxi->rxi_flags & IEEE80211_RXI_HWDEC_SAME_PN) { if (pn < *prsc) { ic->ic_stats.is_ccmp_replays++; return 1; } } else if (pn <= *prsc) { ic->ic_stats.is_ccmp_replays++; return 1; } /* Last seen packet number is updated in ieee80211_inputm(). */ /* * Some firmware versions strip the MIC, and some don't. It is not * clear which of the capability flags could tell us what to expect. * For now, keep things simple and just leave the MIC in place if * it is present. * * The IV will be stripped by ieee80211_inputm(). */ return 0; } int iwm_rx_hwdecrypt(struct iwm_softc *sc, struct mbuf *m, uint32_t rx_pkt_status, struct ieee80211_rxinfo *rxi) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); struct ieee80211_frame *wh; struct ieee80211_node *ni; int ret = 0; uint8_t type, subtype; wh = mtod(m, struct ieee80211_frame *); type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; if (type == IEEE80211_FC0_TYPE_CTL) return 0; subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; if (ieee80211_has_qos(wh) && (subtype & IEEE80211_FC0_SUBTYPE_NODATA)) return 0; if (IEEE80211_IS_MULTICAST(wh->i_addr1) || !(wh->i_fc[1] & IEEE80211_FC1_PROTECTED)) return 0; ni = ieee80211_find_rxnode(ic, wh); /* Handle hardware decryption. */ if ((ni->ni_flags & IEEE80211_NODE_RXPROT) && ni->ni_pairwise_key.k_cipher == IEEE80211_CIPHER_CCMP) { if ((rx_pkt_status & IWM_RX_MPDU_RES_STATUS_SEC_ENC_MSK) != IWM_RX_MPDU_RES_STATUS_SEC_CCM_ENC) { ic->ic_stats.is_ccmp_dec_errs++; ret = 1; goto out; } /* Check whether decryption was successful or not. */ if ((rx_pkt_status & (IWM_RX_MPDU_RES_STATUS_DEC_DONE | IWM_RX_MPDU_RES_STATUS_MIC_OK)) != (IWM_RX_MPDU_RES_STATUS_DEC_DONE | IWM_RX_MPDU_RES_STATUS_MIC_OK)) { ic->ic_stats.is_ccmp_dec_errs++; ret = 1; goto out; } rxi->rxi_flags |= IEEE80211_RXI_HWDEC; } out: if (ret) ifp->if_ierrors++; ieee80211_release_node(ic, ni); return ret; } void iwm_rx_frame(struct iwm_softc *sc, struct mbuf *m, int chanidx, uint32_t rx_pkt_status, int is_shortpre, int rate_n_flags, uint32_t device_timestamp, struct ieee80211_rxinfo *rxi, struct mbuf_list *ml) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); struct ieee80211_frame *wh; struct ieee80211_node *ni; struct ieee80211_channel *bss_chan; uint8_t saved_bssid[IEEE80211_ADDR_LEN] = { 0 }; if (chanidx < 0 || chanidx >= nitems(ic->ic_channels)) chanidx = ieee80211_chan2ieee(ic, ic->ic_ibss_chan); wh = mtod(m, struct ieee80211_frame *); ni = ieee80211_find_rxnode(ic, wh); if (ni == ic->ic_bss) { /* * We may switch ic_bss's channel during scans. * Record the current channel so we can restore it later. */ bss_chan = ni->ni_chan; IEEE80211_ADDR_COPY(&saved_bssid, ni->ni_macaddr); } ni->ni_chan = &ic->ic_channels[chanidx]; if ((rxi->rxi_flags & IEEE80211_RXI_HWDEC) && iwm_ccmp_decap(sc, m, ni, rxi) != 0) { ifp->if_ierrors++; m_freem(m); ieee80211_release_node(ic, ni); return; } #if NBPFILTER > 0 if (sc->sc_drvbpf != NULL) { struct iwm_rx_radiotap_header *tap = &sc->sc_rxtap; uint16_t chan_flags; tap->wr_flags = 0; if (is_shortpre) tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; tap->wr_chan_freq = htole16(ic->ic_channels[chanidx].ic_freq); chan_flags = ic->ic_channels[chanidx].ic_flags; if (ic->ic_curmode != IEEE80211_MODE_11N) chan_flags &= ~IEEE80211_CHAN_HT; tap->wr_chan_flags = htole16(chan_flags); tap->wr_dbm_antsignal = (int8_t)rxi->rxi_rssi; tap->wr_dbm_antnoise = (int8_t)sc->sc_noise; tap->wr_tsft = device_timestamp; if (rate_n_flags & IWM_RATE_MCS_HT_MSK) { uint8_t mcs = (rate_n_flags & (IWM_RATE_HT_MCS_RATE_CODE_MSK | IWM_RATE_HT_MCS_NSS_MSK)); tap->wr_rate = (0x80 | mcs); } else { uint8_t rate = (rate_n_flags & IWM_RATE_LEGACY_RATE_MSK); switch (rate) { /* CCK rates. */ case 10: tap->wr_rate = 2; break; case 20: tap->wr_rate = 4; break; case 55: tap->wr_rate = 11; break; case 110: tap->wr_rate = 22; break; /* OFDM rates. */ case 0xd: tap->wr_rate = 12; break; case 0xf: tap->wr_rate = 18; break; case 0x5: tap->wr_rate = 24; break; case 0x7: tap->wr_rate = 36; break; case 0x9: tap->wr_rate = 48; break; case 0xb: tap->wr_rate = 72; break; case 0x1: tap->wr_rate = 96; break; case 0x3: tap->wr_rate = 108; break; /* Unknown rate: should not happen. */ default: tap->wr_rate = 0; } } bpf_mtap_hdr(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_DIRECTION_IN); } #endif ieee80211_inputm(IC2IFP(ic), m, ni, rxi, ml); /* * ieee80211_inputm() might have changed our BSS. * Restore ic_bss's channel if we are still in the same BSS. */ if (ni == ic->ic_bss && IEEE80211_ADDR_EQ(saved_bssid, ni->ni_macaddr)) ni->ni_chan = bss_chan; ieee80211_release_node(ic, ni); } void iwm_rx_mpdu(struct iwm_softc *sc, struct mbuf *m, void *pktdata, size_t maxlen, struct mbuf_list *ml) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_rxinfo rxi; struct iwm_rx_phy_info *phy_info; struct iwm_rx_mpdu_res_start *rx_res; int device_timestamp; uint16_t phy_flags; uint32_t len; uint32_t rx_pkt_status; int rssi, chanidx, rate_n_flags; memset(&rxi, 0, sizeof(rxi)); phy_info = &sc->sc_last_phy_info; rx_res = (struct iwm_rx_mpdu_res_start *)pktdata; len = le16toh(rx_res->byte_count); if (ic->ic_opmode == IEEE80211_M_MONITOR) { /* Allow control frames in monitor mode. */ if (len < sizeof(struct ieee80211_frame_cts)) { ic->ic_stats.is_rx_tooshort++; IC2IFP(ic)->if_ierrors++; m_freem(m); return; } } else if (len < sizeof(struct ieee80211_frame)) { ic->ic_stats.is_rx_tooshort++; IC2IFP(ic)->if_ierrors++; m_freem(m); return; } if (len > maxlen - sizeof(*rx_res)) { IC2IFP(ic)->if_ierrors++; m_freem(m); return; } if (__predict_false(phy_info->cfg_phy_cnt > 20)) { m_freem(m); return; } rx_pkt_status = le32toh(*(uint32_t *)(pktdata + sizeof(*rx_res) + len)); if (!(rx_pkt_status & IWM_RX_MPDU_RES_STATUS_CRC_OK) || !(rx_pkt_status & IWM_RX_MPDU_RES_STATUS_OVERRUN_OK)) { m_freem(m); return; /* drop */ } m->m_data = pktdata + sizeof(*rx_res); m->m_pkthdr.len = m->m_len = len; if (iwm_rx_hwdecrypt(sc, m, rx_pkt_status, &rxi)) { m_freem(m); return; } chanidx = letoh32(phy_info->channel); device_timestamp = le32toh(phy_info->system_timestamp); phy_flags = letoh16(phy_info->phy_flags); rate_n_flags = le32toh(phy_info->rate_n_flags); rssi = iwm_get_signal_strength(sc, phy_info); rssi = (0 - IWM_MIN_DBM) + rssi; /* normalize */ rssi = MIN(rssi, ic->ic_max_rssi); /* clip to max. 100% */ rxi.rxi_rssi = rssi; rxi.rxi_tstamp = device_timestamp; iwm_rx_frame(sc, m, chanidx, rx_pkt_status, (phy_flags & IWM_PHY_INFO_FLAG_SHPREAMBLE), rate_n_flags, device_timestamp, &rxi, ml); } void iwm_flip_address(uint8_t *addr) { int i; uint8_t mac_addr[ETHER_ADDR_LEN]; for (i = 0; i < ETHER_ADDR_LEN; i++) mac_addr[i] = addr[ETHER_ADDR_LEN - i - 1]; IEEE80211_ADDR_COPY(addr, mac_addr); } /* * Drop duplicate 802.11 retransmissions * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery") * and handle pseudo-duplicate frames which result from deaggregation * of A-MSDU frames in hardware. */ int iwm_detect_duplicate(struct iwm_softc *sc, struct mbuf *m, struct iwm_rx_mpdu_desc *desc, struct ieee80211_rxinfo *rxi) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct iwm_rxq_dup_data *dup_data = &in->dup_data; uint8_t tid = IWM_MAX_TID_COUNT, subframe_idx; struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); uint8_t type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; int hasqos = ieee80211_has_qos(wh); uint16_t seq; if (type == IEEE80211_FC0_TYPE_CTL || (hasqos && (subtype & IEEE80211_FC0_SUBTYPE_NODATA)) || IEEE80211_IS_MULTICAST(wh->i_addr1)) return 0; if (hasqos) { tid = (ieee80211_get_qos(wh) & IEEE80211_QOS_TID); if (tid > IWM_MAX_TID_COUNT) tid = IWM_MAX_TID_COUNT; } /* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */ subframe_idx = desc->amsdu_info & IWM_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK; seq = letoh16(*(u_int16_t *)wh->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT; if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) && dup_data->last_seq[tid] == seq && dup_data->last_sub_frame[tid] >= subframe_idx) return 1; /* * Allow the same frame sequence number for all A-MSDU subframes * following the first subframe. * Otherwise these subframes would be discarded as replays. */ if (dup_data->last_seq[tid] == seq && subframe_idx > dup_data->last_sub_frame[tid] && (desc->mac_flags2 & IWM_RX_MPDU_MFLG2_AMSDU)) { rxi->rxi_flags |= IEEE80211_RXI_SAME_SEQ; } dup_data->last_seq[tid] = seq; dup_data->last_sub_frame[tid] = subframe_idx; return 0; } /* * Returns true if sn2 - buffer_size < sn1 < sn2. * To be used only in order to compare reorder buffer head with NSSN. * We fully trust NSSN unless it is behind us due to reorder timeout. * Reorder timeout can only bring us up to buffer_size SNs ahead of NSSN. */ int iwm_is_sn_less(uint16_t sn1, uint16_t sn2, uint16_t buffer_size) { return SEQ_LT(sn1, sn2) && !SEQ_LT(sn1, sn2 - buffer_size); } void iwm_release_frames(struct iwm_softc *sc, struct ieee80211_node *ni, struct iwm_rxba_data *rxba, struct iwm_reorder_buffer *reorder_buf, uint16_t nssn, struct mbuf_list *ml) { struct iwm_reorder_buf_entry *entries = &rxba->entries[0]; uint16_t ssn = reorder_buf->head_sn; /* ignore nssn smaller than head sn - this can happen due to timeout */ if (iwm_is_sn_less(nssn, ssn, reorder_buf->buf_size)) goto set_timer; while (iwm_is_sn_less(ssn, nssn, reorder_buf->buf_size)) { int index = ssn % reorder_buf->buf_size; struct mbuf *m; int chanidx, is_shortpre; uint32_t rx_pkt_status, rate_n_flags, device_timestamp; struct ieee80211_rxinfo *rxi; /* This data is the same for all A-MSDU subframes. */ chanidx = entries[index].chanidx; rx_pkt_status = entries[index].rx_pkt_status; is_shortpre = entries[index].is_shortpre; rate_n_flags = entries[index].rate_n_flags; device_timestamp = entries[index].device_timestamp; rxi = &entries[index].rxi; /* * Empty the list. Will have more than one frame for A-MSDU. * Empty list is valid as well since nssn indicates frames were * received. */ while ((m = ml_dequeue(&entries[index].frames)) != NULL) { iwm_rx_frame(sc, m, chanidx, rx_pkt_status, is_shortpre, rate_n_flags, device_timestamp, rxi, ml); reorder_buf->num_stored--; /* * Allow the same frame sequence number and CCMP PN for * all A-MSDU subframes following the first subframe. * Otherwise they would be discarded as replays. */ rxi->rxi_flags |= IEEE80211_RXI_SAME_SEQ; rxi->rxi_flags |= IEEE80211_RXI_HWDEC_SAME_PN; } ssn = (ssn + 1) & 0xfff; } reorder_buf->head_sn = nssn; set_timer: if (reorder_buf->num_stored && !reorder_buf->removed) { timeout_add_usec(&reorder_buf->reorder_timer, RX_REORDER_BUF_TIMEOUT_MQ_USEC); } else timeout_del(&reorder_buf->reorder_timer); } int iwm_oldsn_workaround(struct iwm_softc *sc, struct ieee80211_node *ni, int tid, struct iwm_reorder_buffer *buffer, uint32_t reorder_data, uint32_t gp2) { struct ieee80211com *ic = &sc->sc_ic; if (gp2 != buffer->consec_oldsn_ampdu_gp2) { /* we have a new (A-)MPDU ... */ /* * reset counter to 0 if we didn't have any oldsn in * the last A-MPDU (as detected by GP2 being identical) */ if (!buffer->consec_oldsn_prev_drop) buffer->consec_oldsn_drops = 0; /* either way, update our tracking state */ buffer->consec_oldsn_ampdu_gp2 = gp2; } else if (buffer->consec_oldsn_prev_drop) { /* * tracking state didn't change, and we had an old SN * indication before - do nothing in this case, we * already noted this one down and are waiting for the * next A-MPDU (by GP2) */ return 0; } /* return unless this MPDU has old SN */ if (!(reorder_data & IWM_RX_MPDU_REORDER_BA_OLD_SN)) return 0; /* update state */ buffer->consec_oldsn_prev_drop = 1; buffer->consec_oldsn_drops++; /* if limit is reached, send del BA and reset state */ if (buffer->consec_oldsn_drops == IWM_AMPDU_CONSEC_DROPS_DELBA) { ieee80211_delba_request(ic, ni, IEEE80211_REASON_UNSPECIFIED, 0, tid); buffer->consec_oldsn_prev_drop = 0; buffer->consec_oldsn_drops = 0; return 1; } return 0; } /* * Handle re-ordering of frames which were de-aggregated in hardware. * Returns 1 if the MPDU was consumed (buffered or dropped). * Returns 0 if the MPDU should be passed to upper layer. */ int iwm_rx_reorder(struct iwm_softc *sc, struct mbuf *m, int chanidx, struct iwm_rx_mpdu_desc *desc, int is_shortpre, int rate_n_flags, uint32_t device_timestamp, struct ieee80211_rxinfo *rxi, struct mbuf_list *ml) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_frame *wh; struct ieee80211_node *ni; struct iwm_rxba_data *rxba; struct iwm_reorder_buffer *buffer; uint32_t reorder_data = le32toh(desc->reorder_data); int is_amsdu = (desc->mac_flags2 & IWM_RX_MPDU_MFLG2_AMSDU); int last_subframe = (desc->amsdu_info & IWM_RX_MPDU_AMSDU_LAST_SUBFRAME); uint8_t tid; uint8_t subframe_idx = (desc->amsdu_info & IWM_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK); struct iwm_reorder_buf_entry *entries; int index; uint16_t nssn, sn; uint8_t baid, type, subtype; int hasqos; wh = mtod(m, struct ieee80211_frame *); hasqos = ieee80211_has_qos(wh); tid = hasqos ? ieee80211_get_qos(wh) & IEEE80211_QOS_TID : 0; type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; /* * We are only interested in Block Ack requests and unicast QoS data. */ if (IEEE80211_IS_MULTICAST(wh->i_addr1)) return 0; if (hasqos) { if (subtype & IEEE80211_FC0_SUBTYPE_NODATA) return 0; } else { if (type != IEEE80211_FC0_TYPE_CTL || subtype != IEEE80211_FC0_SUBTYPE_BAR) return 0; } baid = (reorder_data & IWM_RX_MPDU_REORDER_BAID_MASK) >> IWM_RX_MPDU_REORDER_BAID_SHIFT; if (baid == IWM_RX_REORDER_DATA_INVALID_BAID || baid >= nitems(sc->sc_rxba_data)) return 0; rxba = &sc->sc_rxba_data[baid]; if (rxba->baid == IWM_RX_REORDER_DATA_INVALID_BAID || tid != rxba->tid || rxba->sta_id != IWM_STATION_ID) return 0; if (rxba->timeout != 0) getmicrouptime(&rxba->last_rx); /* Bypass A-MPDU re-ordering in net80211. */ rxi->rxi_flags |= IEEE80211_RXI_AMPDU_DONE; nssn = reorder_data & IWM_RX_MPDU_REORDER_NSSN_MASK; sn = (reorder_data & IWM_RX_MPDU_REORDER_SN_MASK) >> IWM_RX_MPDU_REORDER_SN_SHIFT; buffer = &rxba->reorder_buf; entries = &rxba->entries[0]; if (!buffer->valid) { if (reorder_data & IWM_RX_MPDU_REORDER_BA_OLD_SN) return 0; buffer->valid = 1; } ni = ieee80211_find_rxnode(ic, wh); if (type == IEEE80211_FC0_TYPE_CTL && subtype == IEEE80211_FC0_SUBTYPE_BAR) { iwm_release_frames(sc, ni, rxba, buffer, nssn, ml); goto drop; } /* * If there was a significant jump in the nssn - adjust. * If the SN is smaller than the NSSN it might need to first go into * the reorder buffer, in which case we just release up to it and the * rest of the function will take care of storing it and releasing up to * the nssn. */ if (!iwm_is_sn_less(nssn, buffer->head_sn + buffer->buf_size, buffer->buf_size) || !SEQ_LT(sn, buffer->head_sn + buffer->buf_size)) { uint16_t min_sn = SEQ_LT(sn, nssn) ? sn : nssn; ic->ic_stats.is_ht_rx_frame_above_ba_winend++; iwm_release_frames(sc, ni, rxba, buffer, min_sn, ml); } if (iwm_oldsn_workaround(sc, ni, tid, buffer, reorder_data, device_timestamp)) { /* BA session will be torn down. */ ic->ic_stats.is_ht_rx_ba_window_jump++; goto drop; } /* drop any outdated packets */ if (SEQ_LT(sn, buffer->head_sn)) { ic->ic_stats.is_ht_rx_frame_below_ba_winstart++; goto drop; } /* release immediately if allowed by nssn and no stored frames */ if (!buffer->num_stored && SEQ_LT(sn, nssn)) { if (iwm_is_sn_less(buffer->head_sn, nssn, buffer->buf_size) && (!is_amsdu || last_subframe)) buffer->head_sn = nssn; ieee80211_release_node(ic, ni); return 0; } /* * release immediately if there are no stored frames, and the sn is * equal to the head. * This can happen due to reorder timer, where NSSN is behind head_sn. * When we released everything, and we got the next frame in the * sequence, according to the NSSN we can't release immediately, * while technically there is no hole and we can move forward. */ if (!buffer->num_stored && sn == buffer->head_sn) { if (!is_amsdu || last_subframe) buffer->head_sn = (buffer->head_sn + 1) & 0xfff; ieee80211_release_node(ic, ni); return 0; } index = sn % buffer->buf_size; /* * Check if we already stored this frame * As AMSDU is either received or not as whole, logic is simple: * If we have frames in that position in the buffer and the last frame * originated from AMSDU had a different SN then it is a retransmission. * If it is the same SN then if the subframe index is incrementing it * is the same AMSDU - otherwise it is a retransmission. */ if (!ml_empty(&entries[index].frames)) { if (!is_amsdu) { ic->ic_stats.is_ht_rx_ba_no_buf++; goto drop; } else if (sn != buffer->last_amsdu || buffer->last_sub_index >= subframe_idx) { ic->ic_stats.is_ht_rx_ba_no_buf++; goto drop; } } else { /* This data is the same for all A-MSDU subframes. */ entries[index].chanidx = chanidx; entries[index].is_shortpre = is_shortpre; entries[index].rate_n_flags = rate_n_flags; entries[index].device_timestamp = device_timestamp; memcpy(&entries[index].rxi, rxi, sizeof(entries[index].rxi)); } /* put in reorder buffer */ ml_enqueue(&entries[index].frames, m); buffer->num_stored++; getmicrouptime(&entries[index].reorder_time); if (is_amsdu) { buffer->last_amsdu = sn; buffer->last_sub_index = subframe_idx; } /* * We cannot trust NSSN for AMSDU sub-frames that are not the last. * The reason is that NSSN advances on the first sub-frame, and may * cause the reorder buffer to advance before all the sub-frames arrive. * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with * SN 1. NSSN for first sub frame will be 3 with the result of driver * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is * already ahead and it will be dropped. * If the last sub-frame is not on this queue - we will get frame * release notification with up to date NSSN. */ if (!is_amsdu || last_subframe) iwm_release_frames(sc, ni, rxba, buffer, nssn, ml); ieee80211_release_node(ic, ni); return 1; drop: m_freem(m); ieee80211_release_node(ic, ni); return 1; } void iwm_rx_mpdu_mq(struct iwm_softc *sc, struct mbuf *m, void *pktdata, size_t maxlen, struct mbuf_list *ml) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_rxinfo rxi; struct iwm_rx_mpdu_desc *desc; uint32_t len, hdrlen, rate_n_flags, device_timestamp; int rssi; uint8_t chanidx; uint16_t phy_info; memset(&rxi, 0, sizeof(rxi)); desc = (struct iwm_rx_mpdu_desc *)pktdata; if (!(desc->status & htole16(IWM_RX_MPDU_RES_STATUS_CRC_OK)) || !(desc->status & htole16(IWM_RX_MPDU_RES_STATUS_OVERRUN_OK))) { m_freem(m); return; /* drop */ } len = le16toh(desc->mpdu_len); if (ic->ic_opmode == IEEE80211_M_MONITOR) { /* Allow control frames in monitor mode. */ if (len < sizeof(struct ieee80211_frame_cts)) { ic->ic_stats.is_rx_tooshort++; IC2IFP(ic)->if_ierrors++; m_freem(m); return; } } else if (len < sizeof(struct ieee80211_frame)) { ic->ic_stats.is_rx_tooshort++; IC2IFP(ic)->if_ierrors++; m_freem(m); return; } if (len > maxlen - sizeof(*desc)) { IC2IFP(ic)->if_ierrors++; m_freem(m); return; } m->m_data = pktdata + sizeof(*desc); m->m_pkthdr.len = m->m_len = len; /* Account for padding following the frame header. */ if (desc->mac_flags2 & IWM_RX_MPDU_MFLG2_PAD) { struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); int type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; if (type == IEEE80211_FC0_TYPE_CTL) { switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { case IEEE80211_FC0_SUBTYPE_CTS: hdrlen = sizeof(struct ieee80211_frame_cts); break; case IEEE80211_FC0_SUBTYPE_ACK: hdrlen = sizeof(struct ieee80211_frame_ack); break; default: hdrlen = sizeof(struct ieee80211_frame_min); break; } } else hdrlen = ieee80211_get_hdrlen(wh); if ((le16toh(desc->status) & IWM_RX_MPDU_RES_STATUS_SEC_ENC_MSK) == IWM_RX_MPDU_RES_STATUS_SEC_CCM_ENC) { /* Padding is inserted after the IV. */ hdrlen += IEEE80211_CCMP_HDRLEN; } memmove(m->m_data + 2, m->m_data, hdrlen); m_adj(m, 2); } /* * Hardware de-aggregates A-MSDUs and copies the same MAC header * in place for each subframe. But it leaves the 'A-MSDU present' * bit set in the frame header. We need to clear this bit ourselves. * * And we must allow the same CCMP PN for subframes following the * first subframe. Otherwise they would be discarded as replays. */ if (desc->mac_flags2 & IWM_RX_MPDU_MFLG2_AMSDU) { struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); uint8_t subframe_idx = (desc->amsdu_info & IWM_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK); if (subframe_idx > 0) rxi.rxi_flags |= IEEE80211_RXI_HWDEC_SAME_PN; if (ieee80211_has_qos(wh) && ieee80211_has_addr4(wh) && m->m_len >= sizeof(struct ieee80211_qosframe_addr4)) { struct ieee80211_qosframe_addr4 *qwh4 = mtod(m, struct ieee80211_qosframe_addr4 *); qwh4->i_qos[0] &= htole16(~IEEE80211_QOS_AMSDU); /* HW reverses addr3 and addr4. */ iwm_flip_address(qwh4->i_addr3); iwm_flip_address(qwh4->i_addr4); } else if (ieee80211_has_qos(wh) && m->m_len >= sizeof(struct ieee80211_qosframe)) { struct ieee80211_qosframe *qwh = mtod(m, struct ieee80211_qosframe *); qwh->i_qos[0] &= htole16(~IEEE80211_QOS_AMSDU); /* HW reverses addr3. */ iwm_flip_address(qwh->i_addr3); } } /* * Verify decryption before duplicate detection. The latter uses * the TID supplied in QoS frame headers and this TID is implicitly * verified as part of the CCMP nonce. */ if (iwm_rx_hwdecrypt(sc, m, le16toh(desc->status), &rxi)) { m_freem(m); return; } if (iwm_detect_duplicate(sc, m, desc, &rxi)) { m_freem(m); return; } phy_info = le16toh(desc->phy_info); rate_n_flags = le32toh(desc->v1.rate_n_flags); chanidx = desc->v1.channel; device_timestamp = desc->v1.gp2_on_air_rise; rssi = iwm_rxmq_get_signal_strength(sc, desc); rssi = (0 - IWM_MIN_DBM) + rssi; /* normalize */ rssi = MIN(rssi, ic->ic_max_rssi); /* clip to max. 100% */ rxi.rxi_rssi = rssi; rxi.rxi_tstamp = le64toh(desc->v1.tsf_on_air_rise); if (iwm_rx_reorder(sc, m, chanidx, desc, (phy_info & IWM_RX_MPDU_PHY_SHORT_PREAMBLE), rate_n_flags, device_timestamp, &rxi, ml)) return; iwm_rx_frame(sc, m, chanidx, le16toh(desc->status), (phy_info & IWM_RX_MPDU_PHY_SHORT_PREAMBLE), rate_n_flags, device_timestamp, &rxi, ml); } void iwm_ra_choose(struct iwm_softc *sc, struct ieee80211_node *ni) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ni; int old_txmcs = ni->ni_txmcs; ieee80211_ra_choose(&in->in_rn, ic, ni); /* * If RA has chosen a new TX rate we must update * the firmware's LQ rate table. */ if (ni->ni_txmcs != old_txmcs) iwm_setrates(in, 1); } void iwm_ht_single_rate_control(struct iwm_softc *sc, struct ieee80211_node *ni, int txmcs, uint8_t failure_frame, int txfail) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ni; /* Ignore Tx reports which don't match our last LQ command. */ if (txmcs != ni->ni_txmcs) { if (++in->lq_rate_mismatch > 15) { /* Try to sync firmware with the driver... */ iwm_setrates(in, 1); in->lq_rate_mismatch = 0; } } else { int mcs = txmcs; const struct ieee80211_ht_rateset *rs = ieee80211_ra_get_ht_rateset(txmcs, ieee80211_node_supports_ht_chan40(ni), ieee80211_ra_use_ht_sgi(ni)); unsigned int retries = 0, i; in->lq_rate_mismatch = 0; for (i = 0; i < failure_frame; i++) { if (mcs > rs->min_mcs) { ieee80211_ra_add_stats_ht(&in->in_rn, ic, ni, mcs, 1, 1); mcs--; } else retries++; } if (txfail && failure_frame == 0) { ieee80211_ra_add_stats_ht(&in->in_rn, ic, ni, txmcs, 1, 1); } else { ieee80211_ra_add_stats_ht(&in->in_rn, ic, ni, mcs, retries + 1, retries); } iwm_ra_choose(sc, ni); } } void iwm_rx_tx_cmd_single(struct iwm_softc *sc, struct iwm_rx_packet *pkt, struct iwm_node *in, int txmcs, int txrate) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = &in->in_ni; struct ifnet *ifp = IC2IFP(ic); struct iwm_tx_resp *tx_resp = (void *)pkt->data; int status = le16toh(tx_resp->status.status) & IWM_TX_STATUS_MSK; int txfail; KASSERT(tx_resp->frame_count == 1); txfail = (status != IWM_TX_STATUS_SUCCESS && status != IWM_TX_STATUS_DIRECT_DONE); /* * Update rate control statistics. * Only report frames which were actually queued with the currently * selected Tx rate. Because Tx queues are relatively long we may * encounter previously selected rates here during Tx bursts. * Providing feedback based on such frames can lead to suboptimal * Tx rate control decisions. */ if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) { if (txrate != ni->ni_txrate) { if (++in->lq_rate_mismatch > 15) { /* Try to sync firmware with the driver... */ iwm_setrates(in, 1); in->lq_rate_mismatch = 0; } } else { in->lq_rate_mismatch = 0; in->in_amn.amn_txcnt++; if (txfail) in->in_amn.amn_retrycnt++; if (tx_resp->failure_frame > 0) in->in_amn.amn_retrycnt++; } } else if (ic->ic_fixed_mcs == -1 && ic->ic_state == IEEE80211_S_RUN && (le32toh(tx_resp->initial_rate) & IWM_RATE_MCS_HT_MSK)) { int txmcs = le32toh(tx_resp->initial_rate) & (IWM_RATE_HT_MCS_RATE_CODE_MSK | IWM_RATE_HT_MCS_NSS_MSK); iwm_ht_single_rate_control(sc, ni, txmcs, tx_resp->failure_frame, txfail); } if (txfail) ifp->if_oerrors++; } void iwm_txd_done(struct iwm_softc *sc, struct iwm_tx_data *txd) { struct ieee80211com *ic = &sc->sc_ic; bus_dmamap_sync(sc->sc_dmat, txd->map, 0, txd->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, txd->map); m_freem(txd->m); txd->m = NULL; KASSERT(txd->in); ieee80211_release_node(ic, &txd->in->in_ni); txd->in = NULL; txd->ampdu_nframes = 0; txd->ampdu_txmcs = 0; } void iwm_txq_advance(struct iwm_softc *sc, struct iwm_tx_ring *ring, int idx) { struct iwm_tx_data *txd; while (ring->tail != idx) { txd = &ring->data[ring->tail]; if (txd->m != NULL) { if (ring->qid < IWM_FIRST_AGG_TX_QUEUE) DPRINTF(("%s: missed Tx completion: tail=%d " "idx=%d\n", __func__, ring->tail, idx)); iwm_reset_sched(sc, ring->qid, ring->tail, IWM_STATION_ID); iwm_txd_done(sc, txd); ring->queued--; } ring->tail = (ring->tail + 1) % IWM_TX_RING_COUNT; } wakeup(ring); } void iwm_ampdu_tx_done(struct iwm_softc *sc, struct iwm_cmd_header *cmd_hdr, struct iwm_node *in, struct iwm_tx_ring *txq, uint32_t initial_rate, uint8_t nframes, uint8_t failure_frame, uint16_t ssn, int status, struct iwm_agg_tx_status *agg_status) { struct ieee80211com *ic = &sc->sc_ic; int tid = cmd_hdr->qid - IWM_FIRST_AGG_TX_QUEUE; struct iwm_tx_data *txdata = &txq->data[cmd_hdr->idx]; struct ieee80211_node *ni = &in->in_ni; struct ieee80211_tx_ba *ba; int txfail = (status != IWM_TX_STATUS_SUCCESS && status != IWM_TX_STATUS_DIRECT_DONE); uint16_t seq; if (ic->ic_state != IEEE80211_S_RUN) return; if (nframes > 1) { int i; /* * Collect information about this A-MPDU. */ for (i = 0; i < nframes; i++) { uint8_t qid = agg_status[i].qid; uint8_t idx = agg_status[i].idx; uint16_t txstatus = (le16toh(agg_status[i].status) & IWM_AGG_TX_STATE_STATUS_MSK); if (txstatus != IWM_AGG_TX_STATE_TRANSMITTED) continue; if (qid != cmd_hdr->qid) continue; txdata = &txq->data[idx]; if (txdata->m == NULL) continue; /* The Tx rate was the same for all subframes. */ txdata->ampdu_txmcs = initial_rate & (IWM_RATE_HT_MCS_RATE_CODE_MSK | IWM_RATE_HT_MCS_NSS_MSK); txdata->ampdu_nframes = nframes; } return; } ba = &ni->ni_tx_ba[tid]; if (ba->ba_state != IEEE80211_BA_AGREED) return; if (SEQ_LT(ssn, ba->ba_winstart)) return; /* This was a final single-frame Tx attempt for frame SSN-1. */ seq = (ssn - 1) & 0xfff; /* * Skip rate control if our Tx rate is fixed. * Don't report frames to MiRA which were sent at a different * Tx rate than ni->ni_txmcs. */ if (ic->ic_fixed_mcs == -1) { if (txdata->ampdu_nframes > 1) { /* * This frame was once part of an A-MPDU. * Report one failed A-MPDU Tx attempt. * The firmware might have made several such * attempts but we don't keep track of this. */ ieee80211_ra_add_stats_ht(&in->in_rn, ic, ni, txdata->ampdu_txmcs, 1, 1); } /* Report the final single-frame Tx attempt. */ if (initial_rate & IWM_RATE_HT_MCS_RATE_CODE_MSK) { int txmcs = initial_rate & (IWM_RATE_HT_MCS_RATE_CODE_MSK | IWM_RATE_HT_MCS_NSS_MSK); iwm_ht_single_rate_control(sc, ni, txmcs, failure_frame, txfail); } } if (txfail) ieee80211_tx_compressed_bar(ic, ni, tid, ssn); /* * SSN corresponds to the first (perhaps not yet transmitted) frame * in firmware's BA window. Firmware is not going to retransmit any * frames before its BA window so mark them all as done. */ ieee80211_output_ba_move_window(ic, ni, tid, ssn); iwm_txq_advance(sc, txq, IWM_AGG_SSN_TO_TXQ_IDX(ssn)); iwm_clear_oactive(sc, txq); } void iwm_rx_tx_cmd(struct iwm_softc *sc, struct iwm_rx_packet *pkt, struct iwm_rx_data *data) { struct iwm_cmd_header *cmd_hdr = &pkt->hdr; int idx = cmd_hdr->idx; int qid = cmd_hdr->qid; struct iwm_tx_ring *ring = &sc->txq[qid]; struct iwm_tx_data *txd; struct iwm_tx_resp *tx_resp = (void *)pkt->data; uint32_t ssn; uint32_t len = iwm_rx_packet_len(pkt); bus_dmamap_sync(sc->sc_dmat, data->map, 0, IWM_RBUF_SIZE, BUS_DMASYNC_POSTREAD); /* Sanity checks. */ if (sizeof(*tx_resp) > len) return; if (qid < IWM_FIRST_AGG_TX_QUEUE && tx_resp->frame_count > 1) return; if (qid > IWM_LAST_AGG_TX_QUEUE) return; if (sizeof(*tx_resp) + sizeof(ssn) + tx_resp->frame_count * sizeof(tx_resp->status) > len) return; sc->sc_tx_timer[qid] = 0; txd = &ring->data[idx]; if (txd->m == NULL) return; memcpy(&ssn, &tx_resp->status + tx_resp->frame_count, sizeof(ssn)); ssn = le32toh(ssn) & 0xfff; if (qid >= IWM_FIRST_AGG_TX_QUEUE) { int status; status = le16toh(tx_resp->status.status) & IWM_TX_STATUS_MSK; iwm_ampdu_tx_done(sc, cmd_hdr, txd->in, ring, le32toh(tx_resp->initial_rate), tx_resp->frame_count, tx_resp->failure_frame, ssn, status, &tx_resp->status); } else { /* * Even though this is not an agg queue, we must only free * frames before the firmware's starting sequence number. */ iwm_rx_tx_cmd_single(sc, pkt, txd->in, txd->txmcs, txd->txrate); iwm_txq_advance(sc, ring, IWM_AGG_SSN_TO_TXQ_IDX(ssn)); iwm_clear_oactive(sc, ring); } } void iwm_clear_oactive(struct iwm_softc *sc, struct iwm_tx_ring *ring) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); if (ring->queued < IWM_TX_RING_LOMARK) { sc->qfullmsk &= ~(1 << ring->qid); if (sc->qfullmsk == 0 && ifq_is_oactive(&ifp->if_snd)) { ifq_clr_oactive(&ifp->if_snd); /* * Well, we're in interrupt context, but then again * I guess net80211 does all sorts of stunts in * interrupt context, so maybe this is no biggie. */ (*ifp->if_start)(ifp); } } } void iwm_ampdu_rate_control(struct iwm_softc *sc, struct ieee80211_node *ni, struct iwm_tx_ring *txq, int tid, uint16_t seq, uint16_t ssn) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ni; int idx, end_idx; /* * Update Tx rate statistics for A-MPDUs before firmware's BA window. */ idx = IWM_AGG_SSN_TO_TXQ_IDX(seq); end_idx = IWM_AGG_SSN_TO_TXQ_IDX(ssn); while (idx != end_idx) { struct iwm_tx_data *txdata = &txq->data[idx]; if (txdata->m != NULL && txdata->ampdu_nframes > 1) { /* * We can assume that this subframe has been ACKed * because ACK failures come as single frames and * before failing an A-MPDU subframe the firmware * sends it as a single frame at least once. */ ieee80211_ra_add_stats_ht(&in->in_rn, ic, ni, txdata->ampdu_txmcs, 1, 0); /* Report this frame only once. */ txdata->ampdu_nframes = 0; } idx = (idx + 1) % IWM_TX_RING_COUNT; } iwm_ra_choose(sc, ni); } void iwm_rx_compressed_ba(struct iwm_softc *sc, struct iwm_rx_packet *pkt) { struct iwm_ba_notif *ban = (void *)pkt->data; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = ic->ic_bss; struct iwm_node *in = (void *)ni; struct ieee80211_tx_ba *ba; struct iwm_tx_ring *ring; uint16_t seq, ssn; int qid; if (ic->ic_state != IEEE80211_S_RUN) return; if (iwm_rx_packet_payload_len(pkt) < sizeof(*ban)) return; if (ban->sta_id != IWM_STATION_ID || !IEEE80211_ADDR_EQ(in->in_macaddr, ban->sta_addr)) return; qid = le16toh(ban->scd_flow); if (qid < IWM_FIRST_AGG_TX_QUEUE || qid > IWM_LAST_AGG_TX_QUEUE) return; /* Protect against a firmware bug where the queue/TID are off. */ if (qid != IWM_FIRST_AGG_TX_QUEUE + ban->tid) return; sc->sc_tx_timer[qid] = 0; ba = &ni->ni_tx_ba[ban->tid]; if (ba->ba_state != IEEE80211_BA_AGREED) return; ring = &sc->txq[qid]; /* * The first bit in ban->bitmap corresponds to the sequence number * stored in the sequence control field ban->seq_ctl. * Multiple BA notifications in a row may be using this number, with * additional bits being set in cba->bitmap. It is unclear how the * firmware decides to shift this window forward. * We rely on ba->ba_winstart instead. */ seq = le16toh(ban->seq_ctl) >> IEEE80211_SEQ_SEQ_SHIFT; /* * The firmware's new BA window starting sequence number * corresponds to the first hole in ban->scd_ssn, implying * that all frames between 'seq' and 'ssn' (non-inclusive) * have been acked. */ ssn = le16toh(ban->scd_ssn); if (SEQ_LT(ssn, ba->ba_winstart)) return; /* Skip rate control if our Tx rate is fixed. */ if (ic->ic_fixed_mcs == -1) iwm_ampdu_rate_control(sc, ni, ring, ban->tid, ba->ba_winstart, ssn); /* * SSN corresponds to the first (perhaps not yet transmitted) frame * in firmware's BA window. Firmware is not going to retransmit any * frames before its BA window so mark them all as done. */ ieee80211_output_ba_move_window(ic, ni, ban->tid, ssn); iwm_txq_advance(sc, ring, IWM_AGG_SSN_TO_TXQ_IDX(ssn)); iwm_clear_oactive(sc, ring); } void iwm_rx_bmiss(struct iwm_softc *sc, struct iwm_rx_packet *pkt, struct iwm_rx_data *data) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_missed_beacons_notif *mbn = (void *)pkt->data; uint32_t missed; if ((ic->ic_opmode != IEEE80211_M_STA) || (ic->ic_state != IEEE80211_S_RUN)) return; bus_dmamap_sync(sc->sc_dmat, data->map, sizeof(*pkt), sizeof(*mbn), BUS_DMASYNC_POSTREAD); missed = le32toh(mbn->consec_missed_beacons_since_last_rx); if (missed > ic->ic_bmissthres && ic->ic_mgt_timer == 0) { if (ic->ic_if.if_flags & IFF_DEBUG) printf("%s: receiving no beacons from %s; checking if " "this AP is still responding to probe requests\n", DEVNAME(sc), ether_sprintf(ic->ic_bss->ni_macaddr)); /* * Rather than go directly to scan state, try to send a * directed probe request first. If that fails then the * state machine will drop us into scanning after timing * out waiting for a probe response. */ IEEE80211_SEND_MGMT(ic, ic->ic_bss, IEEE80211_FC0_SUBTYPE_PROBE_REQ, 0); } } int iwm_binding_cmd(struct iwm_softc *sc, struct iwm_node *in, uint32_t action) { struct iwm_binding_cmd cmd; struct iwm_phy_ctxt *phyctxt = in->in_phyctxt; uint32_t mac_id = IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color); int i, err, active = (sc->sc_flags & IWM_FLAG_BINDING_ACTIVE); uint32_t status; size_t len; if (action == IWM_FW_CTXT_ACTION_ADD && active) panic("binding already added"); if (action == IWM_FW_CTXT_ACTION_REMOVE && !active) panic("binding already removed"); if (phyctxt == NULL) /* XXX race with iwm_stop() */ return EINVAL; memset(&cmd, 0, sizeof(cmd)); cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color)); cmd.action = htole32(action); cmd.phy = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color)); cmd.macs[0] = htole32(mac_id); for (i = 1; i < IWM_MAX_MACS_IN_BINDING; i++) cmd.macs[i] = htole32(IWM_FW_CTXT_INVALID); if (IEEE80211_IS_CHAN_2GHZ(phyctxt->channel) || !isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_CDB_SUPPORT)) cmd.lmac_id = htole32(IWM_LMAC_24G_INDEX); else cmd.lmac_id = htole32(IWM_LMAC_5G_INDEX); if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT)) len = sizeof(cmd); else len = sizeof(struct iwm_binding_cmd_v1); status = 0; err = iwm_send_cmd_pdu_status(sc, IWM_BINDING_CONTEXT_CMD, len, &cmd, &status); if (err == 0 && status != 0) err = EIO; return err; } void iwm_phy_ctxt_cmd_hdr(struct iwm_softc *sc, struct iwm_phy_ctxt *ctxt, struct iwm_phy_context_cmd *cmd, uint32_t action, uint32_t apply_time) { memset(cmd, 0, sizeof(struct iwm_phy_context_cmd)); cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ctxt->id, ctxt->color)); cmd->action = htole32(action); cmd->apply_time = htole32(apply_time); } void iwm_phy_ctxt_cmd_data(struct iwm_softc *sc, struct iwm_phy_context_cmd *cmd, struct ieee80211_channel *chan, uint8_t chains_static, uint8_t chains_dynamic, uint8_t sco) { struct ieee80211com *ic = &sc->sc_ic; uint8_t active_cnt, idle_cnt; cmd->ci.band = IEEE80211_IS_CHAN_2GHZ(chan) ? IWM_PHY_BAND_24 : IWM_PHY_BAND_5; cmd->ci.channel = ieee80211_chan2ieee(ic, chan); if (chan->ic_flags & IEEE80211_CHAN_40MHZ) { if (sco == IEEE80211_HTOP0_SCO_SCA) { /* secondary chan above -> control chan below */ cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE40; } else if (sco == IEEE80211_HTOP0_SCO_SCB) { /* secondary chan below -> control chan above */ cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_ABOVE; cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE40; } else { cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE20; cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; } } else { cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE20; cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; } /* Set rx the chains */ idle_cnt = chains_static; active_cnt = chains_dynamic; cmd->rxchain_info = htole32(iwm_fw_valid_rx_ant(sc) << IWM_PHY_RX_CHAIN_VALID_POS); cmd->rxchain_info |= htole32(idle_cnt << IWM_PHY_RX_CHAIN_CNT_POS); cmd->rxchain_info |= htole32(active_cnt << IWM_PHY_RX_CHAIN_MIMO_CNT_POS); cmd->txchain_info = htole32(iwm_fw_valid_tx_ant(sc)); } int iwm_phy_ctxt_cmd_uhb(struct iwm_softc *sc, struct iwm_phy_ctxt *ctxt, uint8_t chains_static, uint8_t chains_dynamic, uint32_t action, uint32_t apply_time, uint8_t sco) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_phy_context_cmd_uhb cmd; uint8_t active_cnt, idle_cnt; struct ieee80211_channel *chan = ctxt->channel; memset(&cmd, 0, sizeof(cmd)); cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ctxt->id, ctxt->color)); cmd.action = htole32(action); cmd.apply_time = htole32(apply_time); cmd.ci.band = IEEE80211_IS_CHAN_2GHZ(chan) ? IWM_PHY_BAND_24 : IWM_PHY_BAND_5; cmd.ci.channel = htole32(ieee80211_chan2ieee(ic, chan)); if (chan->ic_flags & IEEE80211_CHAN_40MHZ) { if (sco == IEEE80211_HTOP0_SCO_SCA) { /* secondary chan above -> control chan below */ cmd.ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; cmd.ci.width = IWM_PHY_VHT_CHANNEL_MODE40; } else if (sco == IEEE80211_HTOP0_SCO_SCB) { /* secondary chan below -> control chan above */ cmd.ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_ABOVE; cmd.ci.width = IWM_PHY_VHT_CHANNEL_MODE40; } else { cmd.ci.width = IWM_PHY_VHT_CHANNEL_MODE20; cmd.ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; } } else { cmd.ci.width = IWM_PHY_VHT_CHANNEL_MODE20; cmd.ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; } idle_cnt = chains_static; active_cnt = chains_dynamic; cmd.rxchain_info = htole32(iwm_fw_valid_rx_ant(sc) << IWM_PHY_RX_CHAIN_VALID_POS); cmd.rxchain_info |= htole32(idle_cnt << IWM_PHY_RX_CHAIN_CNT_POS); cmd.rxchain_info |= htole32(active_cnt << IWM_PHY_RX_CHAIN_MIMO_CNT_POS); cmd.txchain_info = htole32(iwm_fw_valid_tx_ant(sc)); return iwm_send_cmd_pdu(sc, IWM_PHY_CONTEXT_CMD, 0, sizeof(cmd), &cmd); } int iwm_phy_ctxt_cmd(struct iwm_softc *sc, struct iwm_phy_ctxt *ctxt, uint8_t chains_static, uint8_t chains_dynamic, uint32_t action, uint32_t apply_time, uint8_t sco) { struct iwm_phy_context_cmd cmd; /* * Intel increased the size of the fw_channel_info struct and neglected * to bump the phy_context_cmd struct, which contains an fw_channel_info * member in the middle. * To keep things simple we use a separate function to handle the larger * variant of the phy context command. */ if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS)) return iwm_phy_ctxt_cmd_uhb(sc, ctxt, chains_static, chains_dynamic, action, apply_time, sco); iwm_phy_ctxt_cmd_hdr(sc, ctxt, &cmd, action, apply_time); iwm_phy_ctxt_cmd_data(sc, &cmd, ctxt->channel, chains_static, chains_dynamic, sco); return iwm_send_cmd_pdu(sc, IWM_PHY_CONTEXT_CMD, 0, sizeof(struct iwm_phy_context_cmd), &cmd); } int iwm_send_cmd(struct iwm_softc *sc, struct iwm_host_cmd *hcmd) { struct iwm_tx_ring *ring = &sc->txq[sc->cmdqid]; struct iwm_tfd *desc; struct iwm_tx_data *txdata; struct iwm_device_cmd *cmd; struct mbuf *m; bus_addr_t paddr; uint32_t addr_lo; int err = 0, i, paylen, off, s; int idx, code, async, group_id; size_t hdrlen, datasz; uint8_t *data; int generation = sc->sc_generation; code = hcmd->id; async = hcmd->flags & IWM_CMD_ASYNC; idx = ring->cur; for (i = 0, paylen = 0; i < nitems(hcmd->len); i++) { paylen += hcmd->len[i]; } /* If this command waits for a response, allocate response buffer. */ hcmd->resp_pkt = NULL; if (hcmd->flags & IWM_CMD_WANT_RESP) { uint8_t *resp_buf; KASSERT(!async); KASSERT(hcmd->resp_pkt_len >= sizeof(struct iwm_rx_packet)); KASSERT(hcmd->resp_pkt_len <= IWM_CMD_RESP_MAX); if (sc->sc_cmd_resp_pkt[idx] != NULL) return ENOSPC; resp_buf = malloc(hcmd->resp_pkt_len, M_DEVBUF, M_NOWAIT | M_ZERO); if (resp_buf == NULL) return ENOMEM; sc->sc_cmd_resp_pkt[idx] = resp_buf; sc->sc_cmd_resp_len[idx] = hcmd->resp_pkt_len; } else { sc->sc_cmd_resp_pkt[idx] = NULL; } s = splnet(); desc = &ring->desc[idx]; txdata = &ring->data[idx]; group_id = iwm_cmd_groupid(code); if (group_id != 0) { hdrlen = sizeof(cmd->hdr_wide); datasz = sizeof(cmd->data_wide); } else { hdrlen = sizeof(cmd->hdr); datasz = sizeof(cmd->data); } if (paylen > datasz) { /* Command is too large to fit in pre-allocated space. */ size_t totlen = hdrlen + paylen; if (paylen > IWM_MAX_CMD_PAYLOAD_SIZE) { printf("%s: firmware command too long (%zd bytes)\n", DEVNAME(sc), totlen); err = EINVAL; goto out; } m = MCLGETL(NULL, M_DONTWAIT, totlen); if (m == NULL) { printf("%s: could not get fw cmd mbuf (%zd bytes)\n", DEVNAME(sc), totlen); err = ENOMEM; goto out; } cmd = mtod(m, struct iwm_device_cmd *); err = bus_dmamap_load(sc->sc_dmat, txdata->map, cmd, totlen, NULL, BUS_DMA_NOWAIT | BUS_DMA_WRITE); if (err) { printf("%s: could not load fw cmd mbuf (%zd bytes)\n", DEVNAME(sc), totlen); m_freem(m); goto out; } txdata->m = m; /* mbuf will be freed in iwm_cmd_done() */ paddr = txdata->map->dm_segs[0].ds_addr; } else { cmd = &ring->cmd[idx]; paddr = txdata->cmd_paddr; } if (group_id != 0) { cmd->hdr_wide.opcode = iwm_cmd_opcode(code); cmd->hdr_wide.group_id = group_id; cmd->hdr_wide.qid = ring->qid; cmd->hdr_wide.idx = idx; cmd->hdr_wide.length = htole16(paylen); cmd->hdr_wide.version = iwm_cmd_version(code); data = cmd->data_wide; } else { cmd->hdr.code = code; cmd->hdr.flags = 0; cmd->hdr.qid = ring->qid; cmd->hdr.idx = idx; data = cmd->data; } for (i = 0, off = 0; i < nitems(hcmd->data); i++) { if (hcmd->len[i] == 0) continue; memcpy(data + off, hcmd->data[i], hcmd->len[i]); off += hcmd->len[i]; } KASSERT(off == paylen); /* lo field is not aligned */ addr_lo = htole32((uint32_t)paddr); memcpy(&desc->tbs[0].lo, &addr_lo, sizeof(uint32_t)); desc->tbs[0].hi_n_len = htole16(iwm_get_dma_hi_addr(paddr) | ((hdrlen + paylen) << 4)); desc->num_tbs = 1; if (paylen > datasz) { bus_dmamap_sync(sc->sc_dmat, txdata->map, 0, hdrlen + paylen, BUS_DMASYNC_PREWRITE); } else { bus_dmamap_sync(sc->sc_dmat, ring->cmd_dma.map, (char *)(void *)cmd - (char *)(void *)ring->cmd_dma.vaddr, hdrlen + paylen, BUS_DMASYNC_PREWRITE); } bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, (char *)(void *)desc - (char *)(void *)ring->desc_dma.vaddr, sizeof (*desc), BUS_DMASYNC_PREWRITE); /* * Wake up the NIC to make sure that the firmware will see the host * command - we will let the NIC sleep once all the host commands * returned. This needs to be done only on 7000 family NICs. */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) { if (ring->queued == 0 && !iwm_nic_lock(sc)) { err = EBUSY; goto out; } } iwm_update_sched(sc, ring->qid, ring->cur, 0, 0); /* Kick command ring. */ ring->queued++; ring->cur = (ring->cur + 1) % IWM_TX_RING_COUNT; IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); if (!async) { err = tsleep_nsec(desc, PCATCH, "iwmcmd", SEC_TO_NSEC(1)); if (err == 0) { /* if hardware is no longer up, return error */ if (generation != sc->sc_generation) { err = ENXIO; goto out; } /* Response buffer will be freed in iwm_free_resp(). */ hcmd->resp_pkt = (void *)sc->sc_cmd_resp_pkt[idx]; sc->sc_cmd_resp_pkt[idx] = NULL; } else if (generation == sc->sc_generation) { free(sc->sc_cmd_resp_pkt[idx], M_DEVBUF, sc->sc_cmd_resp_len[idx]); sc->sc_cmd_resp_pkt[idx] = NULL; } } out: splx(s); return err; } int iwm_send_cmd_pdu(struct iwm_softc *sc, uint32_t id, uint32_t flags, uint16_t len, const void *data) { struct iwm_host_cmd cmd = { .id = id, .len = { len, }, .data = { data, }, .flags = flags, }; return iwm_send_cmd(sc, &cmd); } int iwm_send_cmd_status(struct iwm_softc *sc, struct iwm_host_cmd *cmd, uint32_t *status) { struct iwm_rx_packet *pkt; struct iwm_cmd_response *resp; int err, resp_len; KASSERT((cmd->flags & IWM_CMD_WANT_RESP) == 0); cmd->flags |= IWM_CMD_WANT_RESP; cmd->resp_pkt_len = sizeof(*pkt) + sizeof(*resp); err = iwm_send_cmd(sc, cmd); if (err) return err; pkt = cmd->resp_pkt; if (pkt == NULL || (pkt->hdr.flags & IWM_CMD_FAILED_MSK)) return EIO; resp_len = iwm_rx_packet_payload_len(pkt); if (resp_len != sizeof(*resp)) { iwm_free_resp(sc, cmd); return EIO; } resp = (void *)pkt->data; *status = le32toh(resp->status); iwm_free_resp(sc, cmd); return err; } int iwm_send_cmd_pdu_status(struct iwm_softc *sc, uint32_t id, uint16_t len, const void *data, uint32_t *status) { struct iwm_host_cmd cmd = { .id = id, .len = { len, }, .data = { data, }, }; return iwm_send_cmd_status(sc, &cmd, status); } void iwm_free_resp(struct iwm_softc *sc, struct iwm_host_cmd *hcmd) { KASSERT((hcmd->flags & (IWM_CMD_WANT_RESP)) == IWM_CMD_WANT_RESP); free(hcmd->resp_pkt, M_DEVBUF, hcmd->resp_pkt_len); hcmd->resp_pkt = NULL; } void iwm_cmd_done(struct iwm_softc *sc, int qid, int idx, int code) { struct iwm_tx_ring *ring = &sc->txq[sc->cmdqid]; struct iwm_tx_data *data; if (qid != sc->cmdqid) { return; /* Not a command ack. */ } data = &ring->data[idx]; if (data->m != NULL) { bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, data->map); m_freem(data->m); data->m = NULL; } wakeup(&ring->desc[idx]); if (ring->queued == 0) { DPRINTF(("%s: unexpected firmware response to command 0x%x\n", DEVNAME(sc), code)); } else if (--ring->queued == 0) { /* * 7000 family NICs are locked while commands are in progress. * All commands are now done so we may unlock the NIC again. */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) iwm_nic_unlock(sc); } } void iwm_update_sched(struct iwm_softc *sc, int qid, int idx, uint8_t sta_id, uint16_t len) { struct iwm_agn_scd_bc_tbl *scd_bc_tbl; uint16_t val; scd_bc_tbl = sc->sched_dma.vaddr; len += IWM_TX_CRC_SIZE + IWM_TX_DELIMITER_SIZE; if (sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_DW_BC_TABLE) len = roundup(len, 4) / 4; val = htole16(sta_id << 12 | len); bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 0, sc->sched_dma.size, BUS_DMASYNC_PREWRITE); /* Update TX scheduler. */ scd_bc_tbl[qid].tfd_offset[idx] = val; if (idx < IWM_TFD_QUEUE_SIZE_BC_DUP) scd_bc_tbl[qid].tfd_offset[IWM_TFD_QUEUE_SIZE_MAX + idx] = val; bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 0, sc->sched_dma.size, BUS_DMASYNC_POSTWRITE); } void iwm_reset_sched(struct iwm_softc *sc, int qid, int idx, uint8_t sta_id) { struct iwm_agn_scd_bc_tbl *scd_bc_tbl; uint16_t val; scd_bc_tbl = sc->sched_dma.vaddr; val = htole16(1 | (sta_id << 12)); bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 0, sc->sched_dma.size, BUS_DMASYNC_PREWRITE); /* Update TX scheduler. */ scd_bc_tbl[qid].tfd_offset[idx] = val; if (idx < IWM_TFD_QUEUE_SIZE_BC_DUP) scd_bc_tbl[qid].tfd_offset[IWM_TFD_QUEUE_SIZE_MAX + idx] = val; bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 0, sc->sched_dma.size, BUS_DMASYNC_POSTWRITE); } /* * Fill in various bit for management frames, and leave them * unfilled for data frames (firmware takes care of that). * Return the selected TX rate. */ const struct iwm_rate * iwm_tx_fill_cmd(struct iwm_softc *sc, struct iwm_node *in, struct ieee80211_frame *wh, struct iwm_tx_cmd *tx) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = &in->in_ni; const struct iwm_rate *rinfo; int type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; int min_ridx = iwm_rval2ridx(ieee80211_min_basic_rate(ic)); int ridx, rate_flags; tx->rts_retry_limit = IWM_RTS_DFAULT_RETRY_LIMIT; tx->data_retry_limit = IWM_LOW_RETRY_LIMIT; if (IEEE80211_IS_MULTICAST(wh->i_addr1) || type != IEEE80211_FC0_TYPE_DATA) { /* for non-data, use the lowest supported rate */ ridx = min_ridx; tx->data_retry_limit = IWM_MGMT_DFAULT_RETRY_LIMIT; } else if (ic->ic_fixed_mcs != -1) { ridx = sc->sc_fixed_ridx; } else if (ic->ic_fixed_rate != -1) { ridx = sc->sc_fixed_ridx; } else { int i; /* Use firmware rateset retry table. */ tx->initial_rate_index = 0; tx->tx_flags |= htole32(IWM_TX_CMD_FLG_STA_RATE); if (ni->ni_flags & IEEE80211_NODE_HT) { ridx = iwm_mcs2ridx[ni->ni_txmcs]; return &iwm_rates[ridx]; } ridx = (IEEE80211_IS_CHAN_5GHZ(ni->ni_chan)) ? IWM_RIDX_OFDM : IWM_RIDX_CCK; for (i = 0; i < ni->ni_rates.rs_nrates; i++) { if (iwm_rates[i].rate == (ni->ni_txrate & IEEE80211_RATE_VAL)) { ridx = i; break; } } return &iwm_rates[ridx]; } rinfo = &iwm_rates[ridx]; if (iwm_is_mimo_ht_plcp(rinfo->ht_plcp)) rate_flags = IWM_RATE_MCS_ANT_AB_MSK; else if (sc->sc_device_family == IWM_DEVICE_FAMILY_9000) rate_flags = IWM_RATE_MCS_ANT_B_MSK; else rate_flags = IWM_RATE_MCS_ANT_A_MSK; if (IWM_RIDX_IS_CCK(ridx)) rate_flags |= IWM_RATE_MCS_CCK_MSK; if ((ni->ni_flags & IEEE80211_NODE_HT) && type == IEEE80211_FC0_TYPE_DATA && rinfo->ht_plcp != IWM_RATE_HT_SISO_MCS_INV_PLCP) { uint8_t sco; if (ieee80211_node_supports_ht_chan40(ni)) sco = (ni->ni_htop0 & IEEE80211_HTOP0_SCO_MASK); else sco = IEEE80211_HTOP0_SCO_SCN; rate_flags |= IWM_RATE_MCS_HT_MSK; if ((sco == IEEE80211_HTOP0_SCO_SCA || sco == IEEE80211_HTOP0_SCO_SCB) && in->in_phyctxt != NULL && in->in_phyctxt->sco == sco) { rate_flags |= IWM_RATE_MCS_CHAN_WIDTH_40; if (ieee80211_node_supports_ht_sgi40(ni)) rate_flags |= IWM_RATE_MCS_SGI_MSK; } else if (ieee80211_node_supports_ht_sgi20(ni)) rate_flags |= IWM_RATE_MCS_SGI_MSK; tx->rate_n_flags = htole32(rate_flags | rinfo->ht_plcp); } else tx->rate_n_flags = htole32(rate_flags | rinfo->plcp); return rinfo; } #define TB0_SIZE 16 int iwm_tx(struct iwm_softc *sc, struct mbuf *m, struct ieee80211_node *ni, int ac) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ni; struct iwm_tx_ring *ring; struct iwm_tx_data *data; struct iwm_tfd *desc; struct iwm_device_cmd *cmd; struct iwm_tx_cmd *tx; struct ieee80211_frame *wh; struct ieee80211_key *k = NULL; const struct iwm_rate *rinfo; uint8_t *ivp; uint32_t flags; u_int hdrlen; bus_dma_segment_t *seg; uint8_t tid, type, subtype; int i, totlen, err, pad; int qid, hasqos; wh = mtod(m, struct ieee80211_frame *); type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; if (type == IEEE80211_FC0_TYPE_CTL) hdrlen = sizeof(struct ieee80211_frame_min); else hdrlen = ieee80211_get_hdrlen(wh); hasqos = ieee80211_has_qos(wh); if (type == IEEE80211_FC0_TYPE_DATA) tid = IWM_TID_NON_QOS; else tid = IWM_MAX_TID_COUNT; /* * Map EDCA categories to Tx data queues. * * We use static data queue assignments even in DQA mode. We do not * need to share Tx queues between stations because we only implement * client mode; the firmware's station table contains only one entry * which represents our access point. */ if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) qid = IWM_DQA_MIN_MGMT_QUEUE + ac; else qid = ac; /* If possible, put this frame on an aggregation queue. */ if (hasqos) { struct ieee80211_tx_ba *ba; uint16_t qos = ieee80211_get_qos(wh); int qostid = qos & IEEE80211_QOS_TID; int agg_qid = IWM_FIRST_AGG_TX_QUEUE + qostid; ba = &ni->ni_tx_ba[qostid]; if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && type == IEEE80211_FC0_TYPE_DATA && subtype != IEEE80211_FC0_SUBTYPE_NODATA && (sc->tx_ba_queue_mask & (1 << agg_qid)) && ba->ba_state == IEEE80211_BA_AGREED) { qid = agg_qid; tid = qostid; ac = ieee80211_up_to_ac(ic, qostid); } } ring = &sc->txq[qid]; desc = &ring->desc[ring->cur]; memset(desc, 0, sizeof(*desc)); data = &ring->data[ring->cur]; cmd = &ring->cmd[ring->cur]; cmd->hdr.code = IWM_TX_CMD; cmd->hdr.flags = 0; cmd->hdr.qid = ring->qid; cmd->hdr.idx = ring->cur; tx = (void *)cmd->data; memset(tx, 0, sizeof(*tx)); rinfo = iwm_tx_fill_cmd(sc, in, wh, tx); #if NBPFILTER > 0 if (sc->sc_drvbpf != NULL) { struct iwm_tx_radiotap_header *tap = &sc->sc_txtap; uint16_t chan_flags; tap->wt_flags = 0; tap->wt_chan_freq = htole16(ni->ni_chan->ic_freq); chan_flags = ni->ni_chan->ic_flags; if (ic->ic_curmode != IEEE80211_MODE_11N) chan_flags &= ~IEEE80211_CHAN_HT; tap->wt_chan_flags = htole16(chan_flags); if ((ni->ni_flags & IEEE80211_NODE_HT) && !IEEE80211_IS_MULTICAST(wh->i_addr1) && type == IEEE80211_FC0_TYPE_DATA && rinfo->ht_plcp != IWM_RATE_HT_SISO_MCS_INV_PLCP) { tap->wt_rate = (0x80 | rinfo->ht_plcp); } else tap->wt_rate = rinfo->rate; if ((ic->ic_flags & IEEE80211_F_WEPON) && (wh->i_fc[1] & IEEE80211_FC1_PROTECTED)) tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; bpf_mtap_hdr(sc->sc_drvbpf, tap, sc->sc_txtap_len, m, BPF_DIRECTION_OUT); } #endif totlen = m->m_pkthdr.len; if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { k = ieee80211_get_txkey(ic, wh, ni); if ((k->k_flags & IEEE80211_KEY_GROUP) || (k->k_cipher != IEEE80211_CIPHER_CCMP)) { if ((m = ieee80211_encrypt(ic, m, k)) == NULL) return ENOBUFS; /* 802.11 header may have moved. */ wh = mtod(m, struct ieee80211_frame *); totlen = m->m_pkthdr.len; k = NULL; /* skip hardware crypto below */ } else { /* HW appends CCMP MIC */ totlen += IEEE80211_CCMP_HDRLEN; } } flags = 0; if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { flags |= IWM_TX_CMD_FLG_ACK; } if (type == IEEE80211_FC0_TYPE_DATA && !IEEE80211_IS_MULTICAST(wh->i_addr1) && (totlen + IEEE80211_CRC_LEN > ic->ic_rtsthreshold || (ic->ic_flags & IEEE80211_F_USEPROT))) flags |= IWM_TX_CMD_FLG_PROT_REQUIRE; tx->sta_id = IWM_STATION_ID; if (type == IEEE80211_FC0_TYPE_MGT) { if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) tx->pm_frame_timeout = htole16(3); else tx->pm_frame_timeout = htole16(2); } else { if (type == IEEE80211_FC0_TYPE_CTL && subtype == IEEE80211_FC0_SUBTYPE_BAR) { struct ieee80211_frame_min *mwh; uint8_t *barfrm; uint16_t ctl; mwh = mtod(m, struct ieee80211_frame_min *); barfrm = (uint8_t *)&mwh[1]; ctl = LE_READ_2(barfrm); tid = (ctl & IEEE80211_BA_TID_INFO_MASK) >> IEEE80211_BA_TID_INFO_SHIFT; flags |= IWM_TX_CMD_FLG_ACK | IWM_TX_CMD_FLG_BAR; tx->data_retry_limit = IWM_BAR_DFAULT_RETRY_LIMIT; } tx->pm_frame_timeout = htole16(0); } if (hdrlen & 3) { /* First segment length must be a multiple of 4. */ flags |= IWM_TX_CMD_FLG_MH_PAD; tx->offload_assist |= htole16(IWM_TX_CMD_OFFLD_PAD); pad = 4 - (hdrlen & 3); } else pad = 0; tx->len = htole16(totlen); tx->tid_tspec = tid; tx->life_time = htole32(IWM_TX_CMD_LIFE_TIME_INFINITE); /* Set physical address of "scratch area". */ tx->dram_lsb_ptr = htole32(data->scratch_paddr); tx->dram_msb_ptr = iwm_get_dma_hi_addr(data->scratch_paddr); /* Copy 802.11 header in TX command. */ memcpy(((uint8_t *)tx) + sizeof(*tx), wh, hdrlen); if (k != NULL && k->k_cipher == IEEE80211_CIPHER_CCMP) { /* Trim 802.11 header and prepend CCMP IV. */ m_adj(m, hdrlen - IEEE80211_CCMP_HDRLEN); ivp = mtod(m, u_int8_t *); k->k_tsc++; /* increment the 48-bit PN */ ivp[0] = k->k_tsc; /* PN0 */ ivp[1] = k->k_tsc >> 8; /* PN1 */ ivp[2] = 0; /* Rsvd */ ivp[3] = k->k_id << 6 | IEEE80211_WEP_EXTIV; ivp[4] = k->k_tsc >> 16; /* PN2 */ ivp[5] = k->k_tsc >> 24; /* PN3 */ ivp[6] = k->k_tsc >> 32; /* PN4 */ ivp[7] = k->k_tsc >> 40; /* PN5 */ tx->sec_ctl = IWM_TX_CMD_SEC_CCM; memcpy(tx->key, k->k_key, MIN(sizeof(tx->key), k->k_len)); /* TX scheduler includes CCMP MIC length. */ totlen += IEEE80211_CCMP_MICLEN; } else { /* Trim 802.11 header. */ m_adj(m, hdrlen); tx->sec_ctl = 0; } flags |= IWM_TX_CMD_FLG_BT_DIS; if (!hasqos) flags |= IWM_TX_CMD_FLG_SEQ_CTL; tx->tx_flags |= htole32(flags); err = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, BUS_DMA_NOWAIT | BUS_DMA_WRITE); if (err && err != EFBIG) { printf("%s: can't map mbuf (error %d)\n", DEVNAME(sc), err); m_freem(m); return err; } if (err) { /* Too many DMA segments, linearize mbuf. */ if (m_defrag(m, M_DONTWAIT)) { m_freem(m); return ENOBUFS; } err = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, BUS_DMA_NOWAIT | BUS_DMA_WRITE); if (err) { printf("%s: can't map mbuf (error %d)\n", DEVNAME(sc), err); m_freem(m); return err; } } data->m = m; data->in = in; data->txmcs = ni->ni_txmcs; data->txrate = ni->ni_txrate; data->ampdu_txmcs = ni->ni_txmcs; /* updated upon Tx interrupt */ /* Fill TX descriptor. */ desc->num_tbs = 2 + data->map->dm_nsegs; desc->tbs[0].lo = htole32(data->cmd_paddr); desc->tbs[0].hi_n_len = htole16(iwm_get_dma_hi_addr(data->cmd_paddr) | (TB0_SIZE << 4)); desc->tbs[1].lo = htole32(data->cmd_paddr + TB0_SIZE); desc->tbs[1].hi_n_len = htole16(iwm_get_dma_hi_addr(data->cmd_paddr) | ((sizeof(struct iwm_cmd_header) + sizeof(*tx) + hdrlen + pad - TB0_SIZE) << 4)); /* Other DMA segments are for data payload. */ seg = data->map->dm_segs; for (i = 0; i < data->map->dm_nsegs; i++, seg++) { desc->tbs[i+2].lo = htole32(seg->ds_addr); desc->tbs[i+2].hi_n_len = \ htole16(iwm_get_dma_hi_addr(seg->ds_addr) | ((seg->ds_len) << 4)); } bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, BUS_DMASYNC_PREWRITE); bus_dmamap_sync(sc->sc_dmat, ring->cmd_dma.map, (char *)(void *)cmd - (char *)(void *)ring->cmd_dma.vaddr, sizeof (*cmd), BUS_DMASYNC_PREWRITE); bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, (char *)(void *)desc - (char *)(void *)ring->desc_dma.vaddr, sizeof (*desc), BUS_DMASYNC_PREWRITE); iwm_update_sched(sc, ring->qid, ring->cur, tx->sta_id, totlen); /* Kick TX ring. */ ring->cur = (ring->cur + 1) % IWM_TX_RING_COUNT; IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); /* Mark TX ring as full if we reach a certain threshold. */ if (++ring->queued > IWM_TX_RING_HIMARK) { sc->qfullmsk |= 1 << ring->qid; } if (ic->ic_if.if_flags & IFF_UP) sc->sc_tx_timer[ring->qid] = 15; return 0; } int iwm_flush_tx_path(struct iwm_softc *sc, int tfd_queue_msk) { struct iwm_tx_path_flush_cmd flush_cmd = { .sta_id = htole32(IWM_STATION_ID), .tid_mask = htole16(0xffff), }; int err; err = iwm_send_cmd_pdu(sc, IWM_TXPATH_FLUSH, 0, sizeof(flush_cmd), &flush_cmd); if (err) printf("%s: Flushing tx queue failed: %d\n", DEVNAME(sc), err); return err; } #define IWM_FLUSH_WAIT_MS 2000 int iwm_wait_tx_queues_empty(struct iwm_softc *sc) { int i, err; for (i = 0; i < IWM_MAX_QUEUES; i++) { struct iwm_tx_ring *ring = &sc->txq[i]; if (i == sc->cmdqid) continue; while (ring->queued > 0) { err = tsleep_nsec(ring, 0, "iwmflush", MSEC_TO_NSEC(IWM_FLUSH_WAIT_MS)); if (err) return err; } } return 0; } void iwm_led_enable(struct iwm_softc *sc) { IWM_WRITE(sc, IWM_CSR_LED_REG, IWM_CSR_LED_REG_TURN_ON); } void iwm_led_disable(struct iwm_softc *sc) { IWM_WRITE(sc, IWM_CSR_LED_REG, IWM_CSR_LED_REG_TURN_OFF); } int iwm_led_is_enabled(struct iwm_softc *sc) { return (IWM_READ(sc, IWM_CSR_LED_REG) == IWM_CSR_LED_REG_TURN_ON); } #define IWM_LED_BLINK_TIMEOUT_MSEC 200 void iwm_led_blink_timeout(void *arg) { struct iwm_softc *sc = arg; if (iwm_led_is_enabled(sc)) iwm_led_disable(sc); else iwm_led_enable(sc); timeout_add_msec(&sc->sc_led_blink_to, IWM_LED_BLINK_TIMEOUT_MSEC); } void iwm_led_blink_start(struct iwm_softc *sc) { timeout_add_msec(&sc->sc_led_blink_to, IWM_LED_BLINK_TIMEOUT_MSEC); iwm_led_enable(sc); } void iwm_led_blink_stop(struct iwm_softc *sc) { timeout_del(&sc->sc_led_blink_to); iwm_led_disable(sc); } #define IWM_POWER_KEEP_ALIVE_PERIOD_SEC 25 int iwm_beacon_filter_send_cmd(struct iwm_softc *sc, struct iwm_beacon_filter_cmd *cmd) { return iwm_send_cmd_pdu(sc, IWM_REPLY_BEACON_FILTERING_CMD, 0, sizeof(struct iwm_beacon_filter_cmd), cmd); } void iwm_beacon_filter_set_cqm_params(struct iwm_softc *sc, struct iwm_node *in, struct iwm_beacon_filter_cmd *cmd) { cmd->ba_enable_beacon_abort = htole32(sc->sc_bf.ba_enabled); } int iwm_update_beacon_abort(struct iwm_softc *sc, struct iwm_node *in, int enable) { struct iwm_beacon_filter_cmd cmd = { IWM_BF_CMD_CONFIG_DEFAULTS, .bf_enable_beacon_filter = htole32(1), .ba_enable_beacon_abort = htole32(enable), }; if (!sc->sc_bf.bf_enabled) return 0; sc->sc_bf.ba_enabled = enable; iwm_beacon_filter_set_cqm_params(sc, in, &cmd); return iwm_beacon_filter_send_cmd(sc, &cmd); } void iwm_power_build_cmd(struct iwm_softc *sc, struct iwm_node *in, struct iwm_mac_power_cmd *cmd) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = &in->in_ni; int dtim_period, dtim_msec, keep_alive; cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); if (ni->ni_dtimperiod) dtim_period = ni->ni_dtimperiod; else dtim_period = 1; /* * Regardless of power management state the driver must set * keep alive period. FW will use it for sending keep alive NDPs * immediately after association. Check that keep alive period * is at least 3 * DTIM. */ dtim_msec = dtim_period * ni->ni_intval; keep_alive = MAX(3 * dtim_msec, 1000 * IWM_POWER_KEEP_ALIVE_PERIOD_SEC); keep_alive = roundup(keep_alive, 1000) / 1000; cmd->keep_alive_seconds = htole16(keep_alive); if (ic->ic_opmode != IEEE80211_M_MONITOR) cmd->flags = htole16(IWM_POWER_FLAGS_POWER_SAVE_ENA_MSK); } int iwm_power_mac_update_mode(struct iwm_softc *sc, struct iwm_node *in) { int err; int ba_enable; struct iwm_mac_power_cmd cmd; memset(&cmd, 0, sizeof(cmd)); iwm_power_build_cmd(sc, in, &cmd); err = iwm_send_cmd_pdu(sc, IWM_MAC_PM_POWER_TABLE, 0, sizeof(cmd), &cmd); if (err != 0) return err; ba_enable = !!(cmd.flags & htole16(IWM_POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)); return iwm_update_beacon_abort(sc, in, ba_enable); } int iwm_power_update_device(struct iwm_softc *sc) { struct iwm_device_power_cmd cmd = { }; struct ieee80211com *ic = &sc->sc_ic; if (ic->ic_opmode != IEEE80211_M_MONITOR) cmd.flags = htole16(IWM_DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); return iwm_send_cmd_pdu(sc, IWM_POWER_TABLE_CMD, 0, sizeof(cmd), &cmd); } int iwm_enable_beacon_filter(struct iwm_softc *sc, struct iwm_node *in) { struct iwm_beacon_filter_cmd cmd = { IWM_BF_CMD_CONFIG_DEFAULTS, .bf_enable_beacon_filter = htole32(1), }; int err; iwm_beacon_filter_set_cqm_params(sc, in, &cmd); err = iwm_beacon_filter_send_cmd(sc, &cmd); if (err == 0) sc->sc_bf.bf_enabled = 1; return err; } int iwm_disable_beacon_filter(struct iwm_softc *sc) { struct iwm_beacon_filter_cmd cmd; int err; memset(&cmd, 0, sizeof(cmd)); err = iwm_beacon_filter_send_cmd(sc, &cmd); if (err == 0) sc->sc_bf.bf_enabled = 0; return err; } int iwm_add_sta_cmd(struct iwm_softc *sc, struct iwm_node *in, int update) { struct iwm_add_sta_cmd add_sta_cmd; int err; uint32_t status; size_t cmdsize; struct ieee80211com *ic = &sc->sc_ic; if (!update && (sc->sc_flags & IWM_FLAG_STA_ACTIVE)) panic("STA already added"); memset(&add_sta_cmd, 0, sizeof(add_sta_cmd)); if (ic->ic_opmode == IEEE80211_M_MONITOR) add_sta_cmd.sta_id = IWM_MONITOR_STA_ID; else add_sta_cmd.sta_id = IWM_STATION_ID; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) { if (ic->ic_opmode == IEEE80211_M_MONITOR) add_sta_cmd.station_type = IWM_STA_GENERAL_PURPOSE; else add_sta_cmd.station_type = IWM_STA_LINK; } add_sta_cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); if (ic->ic_opmode == IEEE80211_M_MONITOR) { int qid; IEEE80211_ADDR_COPY(&add_sta_cmd.addr, etheranyaddr); if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) qid = IWM_DQA_INJECT_MONITOR_QUEUE; else qid = IWM_AUX_QUEUE; in->tfd_queue_msk |= (1 << qid); } else { int ac; for (ac = 0; ac < EDCA_NUM_AC; ac++) { int qid = ac; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) qid += IWM_DQA_MIN_MGMT_QUEUE; in->tfd_queue_msk |= (1 << qid); } } if (!update) { if (ic->ic_opmode == IEEE80211_M_MONITOR) IEEE80211_ADDR_COPY(&add_sta_cmd.addr, etherbroadcastaddr); else IEEE80211_ADDR_COPY(&add_sta_cmd.addr, in->in_macaddr); } add_sta_cmd.add_modify = update ? 1 : 0; add_sta_cmd.station_flags_msk |= htole32(IWM_STA_FLG_FAT_EN_MSK | IWM_STA_FLG_MIMO_EN_MSK); if (update) { add_sta_cmd.modify_mask |= (IWM_STA_MODIFY_QUEUES | IWM_STA_MODIFY_TID_DISABLE_TX); } add_sta_cmd.tid_disable_tx = htole16(in->tid_disable_ampdu); add_sta_cmd.tfd_queue_msk = htole32(in->tfd_queue_msk); if (in->in_ni.ni_flags & IEEE80211_NODE_HT) { add_sta_cmd.station_flags_msk |= htole32(IWM_STA_FLG_MAX_AGG_SIZE_MSK | IWM_STA_FLG_AGG_MPDU_DENS_MSK); if (iwm_mimo_enabled(sc)) { if (in->in_ni.ni_rxmcs[1] != 0) { add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_MIMO_EN_MIMO2); } if (in->in_ni.ni_rxmcs[2] != 0) { add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_MIMO_EN_MIMO3); } } if (ieee80211_node_supports_ht_chan40(&in->in_ni)) { add_sta_cmd.station_flags |= htole32( IWM_STA_FLG_FAT_EN_40MHZ); } add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_MAX_AGG_SIZE_64K); switch (ic->ic_ampdu_params & IEEE80211_AMPDU_PARAM_SS) { case IEEE80211_AMPDU_PARAM_SS_2: add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_AGG_MPDU_DENS_2US); break; case IEEE80211_AMPDU_PARAM_SS_4: add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_AGG_MPDU_DENS_4US); break; case IEEE80211_AMPDU_PARAM_SS_8: add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_AGG_MPDU_DENS_8US); break; case IEEE80211_AMPDU_PARAM_SS_16: add_sta_cmd.station_flags |= htole32(IWM_STA_FLG_AGG_MPDU_DENS_16US); break; default: break; } } status = IWM_ADD_STA_SUCCESS; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmdsize = sizeof(add_sta_cmd); else cmdsize = sizeof(struct iwm_add_sta_cmd_v7); err = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA, cmdsize, &add_sta_cmd, &status); if (!err && (status & IWM_ADD_STA_STATUS_MASK) != IWM_ADD_STA_SUCCESS) err = EIO; return err; } int iwm_add_aux_sta(struct iwm_softc *sc) { struct iwm_add_sta_cmd cmd; int err, qid; uint32_t status; size_t cmdsize; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) { qid = IWM_DQA_AUX_QUEUE; err = iwm_enable_txq(sc, IWM_AUX_STA_ID, qid, IWM_TX_FIFO_MCAST, 0, IWM_MAX_TID_COUNT, 0); } else { qid = IWM_AUX_QUEUE; err = iwm_enable_ac_txq(sc, qid, IWM_TX_FIFO_MCAST); } if (err) return err; memset(&cmd, 0, sizeof(cmd)); cmd.sta_id = IWM_AUX_STA_ID; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmd.station_type = IWM_STA_AUX_ACTIVITY; cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_MAC_INDEX_AUX, 0)); cmd.tfd_queue_msk = htole32(1 << qid); cmd.tid_disable_tx = htole16(0xffff); status = IWM_ADD_STA_SUCCESS; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmdsize = sizeof(cmd); else cmdsize = sizeof(struct iwm_add_sta_cmd_v7); err = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA, cmdsize, &cmd, &status); if (!err && (status & IWM_ADD_STA_STATUS_MASK) != IWM_ADD_STA_SUCCESS) err = EIO; return err; } int iwm_drain_sta(struct iwm_softc *sc, struct iwm_node* in, int drain) { struct iwm_add_sta_cmd cmd; int err; uint32_t status; size_t cmdsize; memset(&cmd, 0, sizeof(cmd)); cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); cmd.sta_id = IWM_STATION_ID; cmd.add_modify = IWM_STA_MODE_MODIFY; cmd.station_flags = drain ? htole32(IWM_STA_FLG_DRAIN_FLOW) : 0; cmd.station_flags_msk = htole32(IWM_STA_FLG_DRAIN_FLOW); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_STA_TYPE)) cmdsize = sizeof(cmd); else cmdsize = sizeof(struct iwm_add_sta_cmd_v7); status = IWM_ADD_STA_SUCCESS; err = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA, cmdsize, &cmd, &status); if (err) { printf("%s: could not update sta (error %d)\n", DEVNAME(sc), err); return err; } switch (status & IWM_ADD_STA_STATUS_MASK) { case IWM_ADD_STA_SUCCESS: break; default: err = EIO; printf("%s: Couldn't %s draining for station\n", DEVNAME(sc), drain ? "enable" : "disable"); break; } return err; } int iwm_flush_sta(struct iwm_softc *sc, struct iwm_node *in) { int err; sc->sc_flags |= IWM_FLAG_TXFLUSH; err = iwm_drain_sta(sc, in, 1); if (err) goto done; err = iwm_flush_tx_path(sc, in->tfd_queue_msk); if (err) { printf("%s: could not flush Tx path (error %d)\n", DEVNAME(sc), err); goto done; } /* * Flushing Tx rings may fail if the AP has disappeared. * We can rely on iwm_newstate_task() to reset everything and begin * scanning again if we are left with outstanding frames on queues. */ err = iwm_wait_tx_queues_empty(sc); if (err) goto done; err = iwm_drain_sta(sc, in, 0); done: sc->sc_flags &= ~IWM_FLAG_TXFLUSH; return err; } int iwm_rm_sta_cmd(struct iwm_softc *sc, struct iwm_node *in) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_rm_sta_cmd rm_sta_cmd; int err; if ((sc->sc_flags & IWM_FLAG_STA_ACTIVE) == 0) panic("sta already removed"); memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); if (ic->ic_opmode == IEEE80211_M_MONITOR) rm_sta_cmd.sta_id = IWM_MONITOR_STA_ID; else rm_sta_cmd.sta_id = IWM_STATION_ID; err = iwm_send_cmd_pdu(sc, IWM_REMOVE_STA, 0, sizeof(rm_sta_cmd), &rm_sta_cmd); return err; } uint16_t iwm_scan_rx_chain(struct iwm_softc *sc) { uint16_t rx_chain; uint8_t rx_ant; rx_ant = iwm_fw_valid_rx_ant(sc); rx_chain = rx_ant << IWM_PHY_RX_CHAIN_VALID_POS; rx_chain |= rx_ant << IWM_PHY_RX_CHAIN_FORCE_MIMO_SEL_POS; rx_chain |= rx_ant << IWM_PHY_RX_CHAIN_FORCE_SEL_POS; rx_chain |= 0x1 << IWM_PHY_RX_CHAIN_DRIVER_FORCE_POS; return htole16(rx_chain); } uint32_t iwm_scan_rate_n_flags(struct iwm_softc *sc, int flags, int no_cck) { uint32_t tx_ant; int i, ind; for (i = 0, ind = sc->sc_scan_last_antenna; i < IWM_RATE_MCS_ANT_NUM; i++) { ind = (ind + 1) % IWM_RATE_MCS_ANT_NUM; if (iwm_fw_valid_tx_ant(sc) & (1 << ind)) { sc->sc_scan_last_antenna = ind; break; } } tx_ant = (1 << sc->sc_scan_last_antenna) << IWM_RATE_MCS_ANT_POS; if ((flags & IEEE80211_CHAN_2GHZ) && !no_cck) return htole32(IWM_RATE_1M_PLCP | IWM_RATE_MCS_CCK_MSK | tx_ant); else return htole32(IWM_RATE_6M_PLCP | tx_ant); } uint8_t iwm_lmac_scan_fill_channels(struct iwm_softc *sc, struct iwm_scan_channel_cfg_lmac *chan, int n_ssids, int bgscan) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_channel *c; uint8_t nchan; for (nchan = 0, c = &ic->ic_channels[1]; c <= &ic->ic_channels[IEEE80211_CHAN_MAX] && nchan < sc->sc_capa_n_scan_channels; c++) { if (c->ic_flags == 0) continue; chan->channel_num = htole16(ieee80211_mhz2ieee(c->ic_freq, 0)); chan->iter_count = htole16(1); chan->iter_interval = 0; chan->flags = htole32(IWM_UNIFIED_SCAN_CHANNEL_PARTIAL); if (n_ssids != 0 && !bgscan) chan->flags |= htole32(1 << 1); /* select SSID 0 */ chan++; nchan++; } return nchan; } uint8_t iwm_umac_scan_fill_channels(struct iwm_softc *sc, struct iwm_scan_channel_cfg_umac *chan, int n_ssids, int bgscan) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_channel *c; uint8_t nchan; for (nchan = 0, c = &ic->ic_channels[1]; c <= &ic->ic_channels[IEEE80211_CHAN_MAX] && nchan < sc->sc_capa_n_scan_channels; c++) { if (c->ic_flags == 0) continue; chan->channel_num = ieee80211_mhz2ieee(c->ic_freq, 0); chan->iter_count = 1; chan->iter_interval = htole16(0); if (n_ssids != 0 && !bgscan) chan->flags = htole32(1 << 0); /* select SSID 0 */ chan++; nchan++; } return nchan; } int iwm_fill_probe_req_v1(struct iwm_softc *sc, struct iwm_scan_probe_req_v1 *preq1) { struct iwm_scan_probe_req preq2; int err, i; err = iwm_fill_probe_req(sc, &preq2); if (err) return err; preq1->mac_header = preq2.mac_header; for (i = 0; i < nitems(preq1->band_data); i++) preq1->band_data[i] = preq2.band_data[i]; preq1->common_data = preq2.common_data; memcpy(preq1->buf, preq2.buf, sizeof(preq1->buf)); return 0; } int iwm_fill_probe_req(struct iwm_softc *sc, struct iwm_scan_probe_req *preq) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_frame *wh = (struct ieee80211_frame *)preq->buf; struct ieee80211_rateset *rs; size_t remain = sizeof(preq->buf); uint8_t *frm, *pos; memset(preq, 0, sizeof(*preq)); if (remain < sizeof(*wh) + 2) return ENOBUFS; /* * Build a probe request frame. Most of the following code is a * copy & paste of what is done in net80211. */ wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_REQ; wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; IEEE80211_ADDR_COPY(wh->i_addr1, etherbroadcastaddr); IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_myaddr); IEEE80211_ADDR_COPY(wh->i_addr3, etherbroadcastaddr); *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */ *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */ frm = (uint8_t *)(wh + 1); *frm++ = IEEE80211_ELEMID_SSID; *frm++ = 0; /* hardware inserts SSID */ /* Tell firmware where the MAC header and SSID IE are. */ preq->mac_header.offset = 0; preq->mac_header.len = htole16(frm - (uint8_t *)wh); remain -= frm - (uint8_t *)wh; /* Fill in 2GHz IEs and tell firmware where they are. */ rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; if (rs->rs_nrates > IEEE80211_RATE_SIZE) { if (remain < 4 + rs->rs_nrates) return ENOBUFS; } else if (remain < 2 + rs->rs_nrates) return ENOBUFS; preq->band_data[0].offset = htole16(frm - (uint8_t *)wh); pos = frm; frm = ieee80211_add_rates(frm, rs); if (rs->rs_nrates > IEEE80211_RATE_SIZE) frm = ieee80211_add_xrates(frm, rs); remain -= frm - pos; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) { if (remain < 3) return ENOBUFS; *frm++ = IEEE80211_ELEMID_DSPARMS; *frm++ = 1; *frm++ = 0; remain -= 3; } preq->band_data[0].len = htole16(frm - pos); if (sc->sc_nvm.sku_cap_band_52GHz_enable) { /* Fill in 5GHz IEs. */ rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; if (rs->rs_nrates > IEEE80211_RATE_SIZE) { if (remain < 4 + rs->rs_nrates) return ENOBUFS; } else if (remain < 2 + rs->rs_nrates) return ENOBUFS; preq->band_data[1].offset = htole16(frm - (uint8_t *)wh); pos = frm; frm = ieee80211_add_rates(frm, rs); if (rs->rs_nrates > IEEE80211_RATE_SIZE) frm = ieee80211_add_xrates(frm, rs); preq->band_data[1].len = htole16(frm - pos); remain -= frm - pos; } /* Send 11n IEs on both 2GHz and 5GHz bands. */ preq->common_data.offset = htole16(frm - (uint8_t *)wh); pos = frm; if (ic->ic_flags & IEEE80211_F_HTON) { if (remain < 28) return ENOBUFS; frm = ieee80211_add_htcaps(frm, ic); /* XXX add WME info? */ } preq->common_data.len = htole16(frm - pos); return 0; } int iwm_lmac_scan(struct iwm_softc *sc, int bgscan) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_host_cmd hcmd = { .id = IWM_SCAN_OFFLOAD_REQUEST_CMD, .len = { 0, }, .data = { NULL, }, .flags = 0, }; struct iwm_scan_req_lmac *req; struct iwm_scan_probe_req_v1 *preq; size_t req_len; int err, async = bgscan; req_len = sizeof(struct iwm_scan_req_lmac) + (sizeof(struct iwm_scan_channel_cfg_lmac) * sc->sc_capa_n_scan_channels) + sizeof(struct iwm_scan_probe_req_v1); if (req_len > IWM_MAX_CMD_PAYLOAD_SIZE) return ENOMEM; req = malloc(req_len, M_DEVBUF, (async ? M_NOWAIT : M_WAIT) | M_CANFAIL | M_ZERO); if (req == NULL) return ENOMEM; hcmd.len[0] = (uint16_t)req_len; hcmd.data[0] = (void *)req; hcmd.flags |= async ? IWM_CMD_ASYNC : 0; /* These timings correspond to iwlwifi's UNASSOC scan. */ req->active_dwell = 10; req->passive_dwell = 110; req->fragmented_dwell = 44; req->extended_dwell = 90; if (bgscan) { req->max_out_time = htole32(120); req->suspend_time = htole32(120); } else { req->max_out_time = htole32(0); req->suspend_time = htole32(0); } req->scan_prio = htole32(IWM_SCAN_PRIORITY_HIGH); req->rx_chain_select = iwm_scan_rx_chain(sc); req->iter_num = htole32(1); req->delay = 0; req->scan_flags = htole32(IWM_LMAC_SCAN_FLAG_PASS_ALL | IWM_LMAC_SCAN_FLAG_ITER_COMPLETE | IWM_LMAC_SCAN_FLAG_EXTENDED_DWELL); if (ic->ic_des_esslen == 0) req->scan_flags |= htole32(IWM_LMAC_SCAN_FLAG_PASSIVE); else req->scan_flags |= htole32(IWM_LMAC_SCAN_FLAG_PRE_CONNECTION); if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT) && isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) req->scan_flags |= htole32(IWM_LMAC_SCAN_FLAGS_RRM_ENABLED); req->flags = htole32(IWM_PHY_BAND_24); if (sc->sc_nvm.sku_cap_band_52GHz_enable) req->flags |= htole32(IWM_PHY_BAND_5); req->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP | IWM_MAC_FILTER_IN_BEACON); /* Tx flags 2 GHz. */ req->tx_cmd[0].tx_flags = htole32(IWM_TX_CMD_FLG_SEQ_CTL | IWM_TX_CMD_FLG_BT_DIS); req->tx_cmd[0].rate_n_flags = iwm_scan_rate_n_flags(sc, IEEE80211_CHAN_2GHZ, 1/*XXX*/); req->tx_cmd[0].sta_id = IWM_AUX_STA_ID; /* Tx flags 5 GHz. */ req->tx_cmd[1].tx_flags = htole32(IWM_TX_CMD_FLG_SEQ_CTL | IWM_TX_CMD_FLG_BT_DIS); req->tx_cmd[1].rate_n_flags = iwm_scan_rate_n_flags(sc, IEEE80211_CHAN_5GHZ, 1/*XXX*/); req->tx_cmd[1].sta_id = IWM_AUX_STA_ID; /* Check if we're doing an active directed scan. */ if (ic->ic_des_esslen != 0) { req->direct_scan[0].id = IEEE80211_ELEMID_SSID; req->direct_scan[0].len = ic->ic_des_esslen; memcpy(req->direct_scan[0].ssid, ic->ic_des_essid, ic->ic_des_esslen); } req->n_channels = iwm_lmac_scan_fill_channels(sc, (struct iwm_scan_channel_cfg_lmac *)req->data, ic->ic_des_esslen != 0, bgscan); preq = (struct iwm_scan_probe_req_v1 *)(req->data + (sizeof(struct iwm_scan_channel_cfg_lmac) * sc->sc_capa_n_scan_channels)); err = iwm_fill_probe_req_v1(sc, preq); if (err) { free(req, M_DEVBUF, req_len); return err; } /* Specify the scan plan: We'll do one iteration. */ req->schedule[0].iterations = 1; req->schedule[0].full_scan_mul = 1; /* Disable EBS. */ req->channel_opt[0].non_ebs_ratio = 1; req->channel_opt[1].non_ebs_ratio = 1; err = iwm_send_cmd(sc, &hcmd); free(req, M_DEVBUF, req_len); return err; } int iwm_config_umac_scan(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_scan_config *scan_config; int err, nchan; size_t cmd_size; struct ieee80211_channel *c; struct iwm_host_cmd hcmd = { .id = iwm_cmd_id(IWM_SCAN_CFG_CMD, IWM_LONG_GROUP, 0), .flags = 0, }; static const uint32_t rates = (IWM_SCAN_CONFIG_RATE_1M | IWM_SCAN_CONFIG_RATE_2M | IWM_SCAN_CONFIG_RATE_5M | IWM_SCAN_CONFIG_RATE_11M | IWM_SCAN_CONFIG_RATE_6M | IWM_SCAN_CONFIG_RATE_9M | IWM_SCAN_CONFIG_RATE_12M | IWM_SCAN_CONFIG_RATE_18M | IWM_SCAN_CONFIG_RATE_24M | IWM_SCAN_CONFIG_RATE_36M | IWM_SCAN_CONFIG_RATE_48M | IWM_SCAN_CONFIG_RATE_54M); cmd_size = sizeof(*scan_config) + sc->sc_capa_n_scan_channels; scan_config = malloc(cmd_size, M_DEVBUF, M_WAIT | M_CANFAIL | M_ZERO); if (scan_config == NULL) return ENOMEM; scan_config->tx_chains = htole32(iwm_fw_valid_tx_ant(sc)); scan_config->rx_chains = htole32(iwm_fw_valid_rx_ant(sc)); scan_config->legacy_rates = htole32(rates | IWM_SCAN_CONFIG_SUPPORTED_RATE(rates)); /* These timings correspond to iwlwifi's UNASSOC scan. */ scan_config->dwell_active = 10; scan_config->dwell_passive = 110; scan_config->dwell_fragmented = 44; scan_config->dwell_extended = 90; scan_config->out_of_channel_time = htole32(0); scan_config->suspend_time = htole32(0); IEEE80211_ADDR_COPY(scan_config->mac_addr, sc->sc_ic.ic_myaddr); scan_config->bcast_sta_id = IWM_AUX_STA_ID; scan_config->channel_flags = 0; for (c = &ic->ic_channels[1], nchan = 0; c <= &ic->ic_channels[IEEE80211_CHAN_MAX] && nchan < sc->sc_capa_n_scan_channels; c++) { if (c->ic_flags == 0) continue; scan_config->channel_array[nchan++] = ieee80211_mhz2ieee(c->ic_freq, 0); } scan_config->flags = htole32(IWM_SCAN_CONFIG_FLAG_ACTIVATE | IWM_SCAN_CONFIG_FLAG_ALLOW_CHUB_REQS | IWM_SCAN_CONFIG_FLAG_SET_TX_CHAINS | IWM_SCAN_CONFIG_FLAG_SET_RX_CHAINS | IWM_SCAN_CONFIG_FLAG_SET_AUX_STA_ID | IWM_SCAN_CONFIG_FLAG_SET_ALL_TIMES | IWM_SCAN_CONFIG_FLAG_SET_LEGACY_RATES | IWM_SCAN_CONFIG_FLAG_SET_MAC_ADDR | IWM_SCAN_CONFIG_FLAG_SET_CHANNEL_FLAGS| IWM_SCAN_CONFIG_N_CHANNELS(nchan) | IWM_SCAN_CONFIG_FLAG_CLEAR_FRAGMENTED); hcmd.data[0] = scan_config; hcmd.len[0] = cmd_size; err = iwm_send_cmd(sc, &hcmd); free(scan_config, M_DEVBUF, cmd_size); return err; } int iwm_umac_scan_size(struct iwm_softc *sc) { int base_size = IWM_SCAN_REQ_UMAC_SIZE_V1; int tail_size; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) base_size = IWM_SCAN_REQ_UMAC_SIZE_V8; else if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) base_size = IWM_SCAN_REQ_UMAC_SIZE_V7; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_SCAN_EXT_CHAN_VER)) tail_size = sizeof(struct iwm_scan_req_umac_tail_v2); else tail_size = sizeof(struct iwm_scan_req_umac_tail_v1); return base_size + sizeof(struct iwm_scan_channel_cfg_umac) * sc->sc_capa_n_scan_channels + tail_size; } struct iwm_scan_umac_chan_param * iwm_get_scan_req_umac_chan_param(struct iwm_softc *sc, struct iwm_scan_req_umac *req) { if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) return &req->v8.channel; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) return &req->v7.channel; return &req->v1.channel; } void * iwm_get_scan_req_umac_data(struct iwm_softc *sc, struct iwm_scan_req_umac *req) { if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) return (void *)&req->v8.data; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) return (void *)&req->v7.data; return (void *)&req->v1.data; } /* adaptive dwell max budget time [TU] for full scan */ #define IWM_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300 /* adaptive dwell max budget time [TU] for directed scan */ #define IWM_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN 100 /* adaptive dwell default high band APs number */ #define IWM_SCAN_ADWELL_DEFAULT_HB_N_APS 8 /* adaptive dwell default low band APs number */ #define IWM_SCAN_ADWELL_DEFAULT_LB_N_APS 2 /* adaptive dwell default APs number in social channels (1, 6, 11) */ #define IWM_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL 10 int iwm_umac_scan(struct iwm_softc *sc, int bgscan) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_host_cmd hcmd = { .id = iwm_cmd_id(IWM_SCAN_REQ_UMAC, IWM_LONG_GROUP, 0), .len = { 0, }, .data = { NULL, }, .flags = 0, }; struct iwm_scan_req_umac *req; void *cmd_data, *tail_data; struct iwm_scan_req_umac_tail_v2 *tail; struct iwm_scan_req_umac_tail_v1 *tailv1; struct iwm_scan_umac_chan_param *chanparam; size_t req_len; int err, async = bgscan; req_len = iwm_umac_scan_size(sc); if ((req_len < IWM_SCAN_REQ_UMAC_SIZE_V1 + sizeof(struct iwm_scan_req_umac_tail_v1)) || req_len > IWM_MAX_CMD_PAYLOAD_SIZE) return ERANGE; req = malloc(req_len, M_DEVBUF, (async ? M_NOWAIT : M_WAIT) | M_CANFAIL | M_ZERO); if (req == NULL) return ENOMEM; hcmd.len[0] = (uint16_t)req_len; hcmd.data[0] = (void *)req; hcmd.flags |= async ? IWM_CMD_ASYNC : 0; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) { req->v7.adwell_default_n_aps_social = IWM_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL; req->v7.adwell_default_n_aps = IWM_SCAN_ADWELL_DEFAULT_LB_N_APS; if (ic->ic_des_esslen != 0) req->v7.adwell_max_budget = htole16(IWM_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN); else req->v7.adwell_max_budget = htole16(IWM_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN); req->v7.scan_priority = htole32(IWM_SCAN_PRIORITY_HIGH); req->v7.max_out_time[IWM_SCAN_LB_LMAC_IDX] = 0; req->v7.suspend_time[IWM_SCAN_LB_LMAC_IDX] = 0; if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) { req->v8.active_dwell[IWM_SCAN_LB_LMAC_IDX] = 10; req->v8.passive_dwell[IWM_SCAN_LB_LMAC_IDX] = 110; } else { req->v7.active_dwell = 10; req->v7.passive_dwell = 110; req->v7.fragmented_dwell = 44; } } else { /* These timings correspond to iwlwifi's UNASSOC scan. */ req->v1.active_dwell = 10; req->v1.passive_dwell = 110; req->v1.fragmented_dwell = 44; req->v1.extended_dwell = 90; req->v1.scan_priority = htole32(IWM_SCAN_PRIORITY_HIGH); } if (bgscan) { const uint32_t timeout = htole32(120); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) { req->v8.max_out_time[IWM_SCAN_LB_LMAC_IDX] = timeout; req->v8.suspend_time[IWM_SCAN_LB_LMAC_IDX] = timeout; } else if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) { req->v7.max_out_time[IWM_SCAN_LB_LMAC_IDX] = timeout; req->v7.suspend_time[IWM_SCAN_LB_LMAC_IDX] = timeout; } else { req->v1.max_out_time = timeout; req->v1.suspend_time = timeout; } } req->ooc_priority = htole32(IWM_SCAN_PRIORITY_HIGH); cmd_data = iwm_get_scan_req_umac_data(sc, req); chanparam = iwm_get_scan_req_umac_chan_param(sc, req); chanparam->count = iwm_umac_scan_fill_channels(sc, (struct iwm_scan_channel_cfg_umac *)cmd_data, ic->ic_des_esslen != 0, bgscan); chanparam->flags = 0; tail_data = cmd_data + sizeof(struct iwm_scan_channel_cfg_umac) * sc->sc_capa_n_scan_channels; tail = tail_data; /* tail v1 layout differs in preq and direct_scan member fields. */ tailv1 = tail_data; req->general_flags = htole32(IWM_UMAC_SCAN_GEN_FLAGS_PASS_ALL | IWM_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL_V2)) { req->v8.general_flags2 = IWM_UMAC_SCAN_GEN_FLAGS2_ALLOW_CHNL_REORDER; } if (ic->ic_des_esslen != 0) { if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_SCAN_EXT_CHAN_VER)) { tail->direct_scan[0].id = IEEE80211_ELEMID_SSID; tail->direct_scan[0].len = ic->ic_des_esslen; memcpy(tail->direct_scan[0].ssid, ic->ic_des_essid, ic->ic_des_esslen); } else { tailv1->direct_scan[0].id = IEEE80211_ELEMID_SSID; tailv1->direct_scan[0].len = ic->ic_des_esslen; memcpy(tailv1->direct_scan[0].ssid, ic->ic_des_essid, ic->ic_des_esslen); } req->general_flags |= htole32(IWM_UMAC_SCAN_GEN_FLAGS_PRE_CONNECT); } else req->general_flags |= htole32(IWM_UMAC_SCAN_GEN_FLAGS_PASSIVE); if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT) && isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) req->general_flags |= htole32(IWM_UMAC_SCAN_GEN_FLAGS_RRM_ENABLED); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_ADAPTIVE_DWELL)) { req->general_flags |= htole32(IWM_UMAC_SCAN_GEN_FLAGS_ADAPTIVE_DWELL); } else { req->general_flags |= htole32(IWM_UMAC_SCAN_GEN_FLAGS_EXTENDED_DWELL); } if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_SCAN_EXT_CHAN_VER)) err = iwm_fill_probe_req(sc, &tail->preq); else err = iwm_fill_probe_req_v1(sc, &tailv1->preq); if (err) { free(req, M_DEVBUF, req_len); return err; } /* Specify the scan plan: We'll do one iteration. */ tail->schedule[0].interval = 0; tail->schedule[0].iter_count = 1; err = iwm_send_cmd(sc, &hcmd); free(req, M_DEVBUF, req_len); return err; } void iwm_mcc_update(struct iwm_softc *sc, struct iwm_mcc_chub_notif *notif) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); char alpha2[3]; snprintf(alpha2, sizeof(alpha2), "%c%c", (le16toh(notif->mcc) & 0xff00) >> 8, le16toh(notif->mcc) & 0xff); if (ifp->if_flags & IFF_DEBUG) { printf("%s: firmware has detected regulatory domain '%s' " "(0x%x)\n", DEVNAME(sc), alpha2, le16toh(notif->mcc)); } /* TODO: Schedule a task to send MCC_UPDATE_CMD? */ } uint8_t iwm_ridx2rate(struct ieee80211_rateset *rs, int ridx) { int i; uint8_t rval; for (i = 0; i < rs->rs_nrates; i++) { rval = (rs->rs_rates[i] & IEEE80211_RATE_VAL); if (rval == iwm_rates[ridx].rate) return rs->rs_rates[i]; } return 0; } int iwm_rval2ridx(int rval) { int ridx; for (ridx = 0; ridx < nitems(iwm_rates); ridx++) { if (iwm_rates[ridx].plcp == IWM_RATE_INVM_PLCP) continue; if (rval == iwm_rates[ridx].rate) break; } return ridx; } void iwm_ack_rates(struct iwm_softc *sc, struct iwm_node *in, int *cck_rates, int *ofdm_rates) { struct ieee80211_node *ni = &in->in_ni; struct ieee80211_rateset *rs = &ni->ni_rates; int lowest_present_ofdm = -1; int lowest_present_cck = -1; uint8_t cck = 0; uint8_t ofdm = 0; int i; if (ni->ni_chan == IEEE80211_CHAN_ANYC || IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { for (i = IWM_FIRST_CCK_RATE; i < IWM_FIRST_OFDM_RATE; i++) { if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) continue; cck |= (1 << i); if (lowest_present_cck == -1 || lowest_present_cck > i) lowest_present_cck = i; } } for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) { if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0) continue; ofdm |= (1 << (i - IWM_FIRST_OFDM_RATE)); if (lowest_present_ofdm == -1 || lowest_present_ofdm > i) lowest_present_ofdm = i; } /* * Now we've got the basic rates as bitmaps in the ofdm and cck * variables. This isn't sufficient though, as there might not * be all the right rates in the bitmap. E.g. if the only basic * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps * and 6 Mbps because the 802.11-2007 standard says in 9.6: * * [...] a STA responding to a received frame shall transmit * its Control Response frame [...] at the highest rate in the * BSSBasicRateSet parameter that is less than or equal to the * rate of the immediately previous frame in the frame exchange * sequence ([...]) and that is of the same modulation class * ([...]) as the received frame. If no rate contained in the * BSSBasicRateSet parameter meets these conditions, then the * control frame sent in response to a received frame shall be * transmitted at the highest mandatory rate of the PHY that is * less than or equal to the rate of the received frame, and * that is of the same modulation class as the received frame. * * As a consequence, we need to add all mandatory rates that are * lower than all of the basic rates to these bitmaps. */ if (IWM_RATE_24M_INDEX < lowest_present_ofdm) ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE; if (IWM_RATE_12M_INDEX < lowest_present_ofdm) ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE; /* 6M already there or needed so always add */ ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE; /* * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. * Note, however: * - if no CCK rates are basic, it must be ERP since there must * be some basic rates at all, so they're OFDM => ERP PHY * (or we're in 5 GHz, and the cck bitmap will never be used) * - if 11M is a basic rate, it must be ERP as well, so add 5.5M * - if 5.5M is basic, 1M and 2M are mandatory * - if 2M is basic, 1M is mandatory * - if 1M is basic, that's the only valid ACK rate. * As a consequence, it's not as complicated as it sounds, just add * any lower rates to the ACK rate bitmap. */ if (IWM_RATE_11M_INDEX < lowest_present_cck) cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE; if (IWM_RATE_5M_INDEX < lowest_present_cck) cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE; if (IWM_RATE_2M_INDEX < lowest_present_cck) cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE; /* 1M already there or needed so always add */ cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE; *cck_rates = cck; *ofdm_rates = ofdm; } void iwm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in, struct iwm_mac_ctx_cmd *cmd, uint32_t action) { #define IWM_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = ic->ic_bss; int cck_ack_rates, ofdm_ack_rates; int i; cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(in->in_id, in->in_color)); cmd->action = htole32(action); if (ic->ic_opmode == IEEE80211_M_MONITOR) cmd->mac_type = htole32(IWM_FW_MAC_TYPE_LISTENER); else if (ic->ic_opmode == IEEE80211_M_STA) cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA); else panic("unsupported operating mode %d", ic->ic_opmode); cmd->tsf_id = htole32(IWM_TSF_ID_A); IEEE80211_ADDR_COPY(cmd->node_addr, ic->ic_myaddr); if (ic->ic_opmode == IEEE80211_M_MONITOR) { IEEE80211_ADDR_COPY(cmd->bssid_addr, etherbroadcastaddr); return; } IEEE80211_ADDR_COPY(cmd->bssid_addr, in->in_macaddr); iwm_ack_rates(sc, in, &cck_ack_rates, &ofdm_ack_rates); cmd->cck_rates = htole32(cck_ack_rates); cmd->ofdm_rates = htole32(ofdm_ack_rates); cmd->cck_short_preamble = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? IWM_MAC_FLG_SHORT_PREAMBLE : 0); cmd->short_slot = htole32((ic->ic_flags & IEEE80211_F_SHSLOT) ? IWM_MAC_FLG_SHORT_SLOT : 0); for (i = 0; i < EDCA_NUM_AC; i++) { struct ieee80211_edca_ac_params *ac = &ic->ic_edca_ac[i]; int txf = iwm_ac_to_tx_fifo[i]; cmd->ac[txf].cw_min = htole16(IWM_EXP2(ac->ac_ecwmin)); cmd->ac[txf].cw_max = htole16(IWM_EXP2(ac->ac_ecwmax)); cmd->ac[txf].aifsn = ac->ac_aifsn; cmd->ac[txf].fifos_mask = (1 << txf); cmd->ac[txf].edca_txop = htole16(ac->ac_txoplimit * 32); } if (ni->ni_flags & IEEE80211_NODE_QOS) cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_UPDATE_EDCA); if (ni->ni_flags & IEEE80211_NODE_HT) { enum ieee80211_htprot htprot = (ni->ni_htop1 & IEEE80211_HTOP1_PROT_MASK); switch (htprot) { case IEEE80211_HTPROT_NONE: break; case IEEE80211_HTPROT_NONMEMBER: case IEEE80211_HTPROT_NONHT_MIXED: cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_HT_PROT | IWM_MAC_PROT_FLG_FAT_PROT); break; case IEEE80211_HTPROT_20MHZ: if (in->in_phyctxt && (in->in_phyctxt->sco == IEEE80211_HTOP0_SCO_SCA || in->in_phyctxt->sco == IEEE80211_HTOP0_SCO_SCB)) { cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_HT_PROT | IWM_MAC_PROT_FLG_FAT_PROT); } break; default: break; } cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_TGN); } if (ic->ic_flags & IEEE80211_F_USEPROT) cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT); cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP); #undef IWM_EXP2 } void iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in, struct iwm_mac_data_sta *sta, int assoc) { struct ieee80211_node *ni = &in->in_ni; uint32_t dtim_off; uint64_t tsf; dtim_off = ni->ni_dtimcount * ni->ni_intval * IEEE80211_DUR_TU; memcpy(&tsf, ni->ni_tstamp, sizeof(tsf)); tsf = letoh64(tsf); sta->is_assoc = htole32(assoc); sta->dtim_time = htole32(ni->ni_rstamp + dtim_off); sta->dtim_tsf = htole64(tsf + dtim_off); sta->bi = htole32(ni->ni_intval); sta->bi_reciprocal = htole32(iwm_reciprocal(ni->ni_intval)); sta->dtim_interval = htole32(ni->ni_intval * ni->ni_dtimperiod); sta->dtim_reciprocal = htole32(iwm_reciprocal(sta->dtim_interval)); sta->listen_interval = htole32(10); sta->assoc_id = htole32(ni->ni_associd); sta->assoc_beacon_arrive_time = htole32(ni->ni_rstamp); } int iwm_mac_ctxt_cmd(struct iwm_softc *sc, struct iwm_node *in, uint32_t action, int assoc) { struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni = &in->in_ni; struct iwm_mac_ctx_cmd cmd; int active = (sc->sc_flags & IWM_FLAG_MAC_ACTIVE); if (action == IWM_FW_CTXT_ACTION_ADD && active) panic("MAC already added"); if (action == IWM_FW_CTXT_ACTION_REMOVE && !active) panic("MAC already removed"); memset(&cmd, 0, sizeof(cmd)); iwm_mac_ctxt_cmd_common(sc, in, &cmd, action); if (ic->ic_opmode == IEEE80211_M_MONITOR) { cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_PROMISC | IWM_MAC_FILTER_IN_CONTROL_AND_MGMT | IWM_MAC_FILTER_ACCEPT_GRP | IWM_MAC_FILTER_IN_BEACON | IWM_MAC_FILTER_IN_PROBE_REQUEST | IWM_MAC_FILTER_IN_CRC32); } else if (!assoc || !ni->ni_associd || !ni->ni_dtimperiod) /* * Allow beacons to pass through as long as we are not * associated or we do not have dtim period information. */ cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON); else iwm_mac_ctxt_cmd_fill_sta(sc, in, &cmd.sta, assoc); return iwm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, 0, sizeof(cmd), &cmd); } int iwm_update_quotas(struct iwm_softc *sc, struct iwm_node *in, int running) { struct iwm_time_quota_cmd_v1 cmd; int i, idx, num_active_macs, quota, quota_rem; int colors[IWM_MAX_BINDINGS] = { -1, -1, -1, -1, }; int n_ifs[IWM_MAX_BINDINGS] = {0, }; uint16_t id; memset(&cmd, 0, sizeof(cmd)); /* currently, PHY ID == binding ID */ if (in && in->in_phyctxt) { id = in->in_phyctxt->id; KASSERT(id < IWM_MAX_BINDINGS); colors[id] = in->in_phyctxt->color; if (running) n_ifs[id] = 1; } /* * The FW's scheduling session consists of * IWM_MAX_QUOTA fragments. Divide these fragments * equally between all the bindings that require quota */ num_active_macs = 0; for (i = 0; i < IWM_MAX_BINDINGS; i++) { cmd.quotas[i].id_and_color = htole32(IWM_FW_CTXT_INVALID); num_active_macs += n_ifs[i]; } quota = 0; quota_rem = 0; if (num_active_macs) { quota = IWM_MAX_QUOTA / num_active_macs; quota_rem = IWM_MAX_QUOTA % num_active_macs; } for (idx = 0, i = 0; i < IWM_MAX_BINDINGS; i++) { if (colors[i] < 0) continue; cmd.quotas[idx].id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(i, colors[i])); if (n_ifs[i] <= 0) { cmd.quotas[idx].quota = htole32(0); cmd.quotas[idx].max_duration = htole32(0); } else { cmd.quotas[idx].quota = htole32(quota * n_ifs[i]); cmd.quotas[idx].max_duration = htole32(0); } idx++; } /* Give the remainder of the session to the first binding */ cmd.quotas[0].quota = htole32(le32toh(cmd.quotas[0].quota) + quota_rem); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_QUOTA_LOW_LATENCY)) { struct iwm_time_quota_cmd cmd_v2; memset(&cmd_v2, 0, sizeof(cmd_v2)); for (i = 0; i < IWM_MAX_BINDINGS; i++) { cmd_v2.quotas[i].id_and_color = cmd.quotas[i].id_and_color; cmd_v2.quotas[i].quota = cmd.quotas[i].quota; cmd_v2.quotas[i].max_duration = cmd.quotas[i].max_duration; } return iwm_send_cmd_pdu(sc, IWM_TIME_QUOTA_CMD, 0, sizeof(cmd_v2), &cmd_v2); } return iwm_send_cmd_pdu(sc, IWM_TIME_QUOTA_CMD, 0, sizeof(cmd), &cmd); } void iwm_add_task(struct iwm_softc *sc, struct taskq *taskq, struct task *task) { int s = splnet(); if (sc->sc_flags & IWM_FLAG_SHUTDOWN) { splx(s); return; } refcnt_take(&sc->task_refs); if (!task_add(taskq, task)) refcnt_rele_wake(&sc->task_refs); splx(s); } void iwm_del_task(struct iwm_softc *sc, struct taskq *taskq, struct task *task) { if (task_del(taskq, task)) refcnt_rele(&sc->task_refs); } int iwm_scan(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); int err; if (sc->sc_flags & IWM_FLAG_BGSCAN) { err = iwm_scan_abort(sc); if (err) { printf("%s: could not abort background scan\n", DEVNAME(sc)); return err; } } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_UMAC_SCAN)) err = iwm_umac_scan(sc, 0); else err = iwm_lmac_scan(sc, 0); if (err) { printf("%s: could not initiate scan\n", DEVNAME(sc)); return err; } /* * The current mode might have been fixed during association. * Ensure all channels get scanned. */ if (IFM_MODE(ic->ic_media.ifm_cur->ifm_media) == IFM_AUTO) ieee80211_setmode(ic, IEEE80211_MODE_AUTO); sc->sc_flags |= IWM_FLAG_SCANNING; if (ifp->if_flags & IFF_DEBUG) printf("%s: %s -> %s\n", ifp->if_xname, ieee80211_state_name[ic->ic_state], ieee80211_state_name[IEEE80211_S_SCAN]); if ((sc->sc_flags & IWM_FLAG_BGSCAN) == 0) { ieee80211_set_link_state(ic, LINK_STATE_DOWN); ieee80211_node_cleanup(ic, ic->ic_bss); } ic->ic_state = IEEE80211_S_SCAN; iwm_led_blink_start(sc); wakeup(&ic->ic_state); /* wake iwm_init() */ return 0; } int iwm_bgscan(struct ieee80211com *ic) { struct iwm_softc *sc = IC2IFP(ic)->if_softc; int err; if (sc->sc_flags & IWM_FLAG_SCANNING) return 0; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_UMAC_SCAN)) err = iwm_umac_scan(sc, 1); else err = iwm_lmac_scan(sc, 1); if (err) { printf("%s: could not initiate scan\n", DEVNAME(sc)); return err; } sc->sc_flags |= IWM_FLAG_BGSCAN; return 0; } void iwm_bgscan_done(struct ieee80211com *ic, struct ieee80211_node_switch_bss_arg *arg, size_t arg_size) { struct iwm_softc *sc = ic->ic_softc; free(sc->bgscan_unref_arg, M_DEVBUF, sc->bgscan_unref_arg_size); sc->bgscan_unref_arg = arg; sc->bgscan_unref_arg_size = arg_size; iwm_add_task(sc, sc->sc_nswq, &sc->bgscan_done_task); } void iwm_bgscan_done_task(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct ieee80211_node *ni = &in->in_ni; int tid, err = 0, s = splnet(); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) || (ic->ic_flags & IEEE80211_F_BGSCAN) == 0 || ic->ic_state != IEEE80211_S_RUN) { err = ENXIO; goto done; } for (tid = 0; tid < IWM_MAX_TID_COUNT; tid++) { int qid = IWM_FIRST_AGG_TX_QUEUE + tid; if ((sc->tx_ba_queue_mask & (1 << qid)) == 0) continue; err = iwm_sta_tx_agg(sc, ni, tid, 0, 0, 0); if (err) goto done; err = iwm_disable_txq(sc, IWM_STATION_ID, qid, tid); if (err) goto done; in->tfd_queue_msk &= ~(1 << qid); #if 0 /* disabled for now; we are going to DEAUTH soon anyway */ IEEE80211_SEND_ACTION(ic, ni, IEEE80211_CATEG_BA, IEEE80211_ACTION_DELBA, IEEE80211_REASON_AUTH_LEAVE << 16 | IEEE80211_FC1_DIR_TODS << 8 | tid); #endif ieee80211_node_tx_ba_clear(ni, tid); } err = iwm_flush_sta(sc, in); if (err) goto done; /* * Tx queues have been flushed and Tx agg has been stopped. * Allow roaming to proceed. */ ni->ni_unref_arg = sc->bgscan_unref_arg; ni->ni_unref_arg_size = sc->bgscan_unref_arg_size; sc->bgscan_unref_arg = NULL; sc->bgscan_unref_arg_size = 0; ieee80211_node_tx_stopped(ic, &in->in_ni); done: if (err) { free(sc->bgscan_unref_arg, M_DEVBUF, sc->bgscan_unref_arg_size); sc->bgscan_unref_arg = NULL; sc->bgscan_unref_arg_size = 0; if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) task_add(systq, &sc->init_task); } refcnt_rele_wake(&sc->task_refs); splx(s); } int iwm_umac_scan_abort(struct iwm_softc *sc) { struct iwm_umac_scan_abort cmd = { 0 }; return iwm_send_cmd_pdu(sc, IWM_WIDE_ID(IWM_LONG_GROUP, IWM_SCAN_ABORT_UMAC), 0, sizeof(cmd), &cmd); } int iwm_lmac_scan_abort(struct iwm_softc *sc) { struct iwm_host_cmd cmd = { .id = IWM_SCAN_OFFLOAD_ABORT_CMD, }; int err, status; err = iwm_send_cmd_status(sc, &cmd, &status); if (err) return err; if (status != IWM_CAN_ABORT_STATUS) { /* * The scan abort will return 1 for success or * 2 for "failure". A failure condition can be * due to simply not being in an active scan which * can occur if we send the scan abort before the * microcode has notified us that a scan is completed. */ return EBUSY; } return 0; } int iwm_scan_abort(struct iwm_softc *sc) { int err; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_UMAC_SCAN)) err = iwm_umac_scan_abort(sc); else err = iwm_lmac_scan_abort(sc); if (err == 0) sc->sc_flags &= ~(IWM_FLAG_SCANNING | IWM_FLAG_BGSCAN); return err; } int iwm_phy_ctxt_update(struct iwm_softc *sc, struct iwm_phy_ctxt *phyctxt, struct ieee80211_channel *chan, uint8_t chains_static, uint8_t chains_dynamic, uint32_t apply_time, uint8_t sco) { uint16_t band_flags = (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ); int err; if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && (phyctxt->channel->ic_flags & band_flags) != (chan->ic_flags & band_flags)) { err = iwm_phy_ctxt_cmd(sc, phyctxt, chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_REMOVE, apply_time, sco); if (err) { printf("%s: could not remove PHY context " "(error %d)\n", DEVNAME(sc), err); return err; } phyctxt->channel = chan; err = iwm_phy_ctxt_cmd(sc, phyctxt, chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_ADD, apply_time, sco); if (err) { printf("%s: could not add PHY context " "(error %d)\n", DEVNAME(sc), err); return err; } } else { phyctxt->channel = chan; err = iwm_phy_ctxt_cmd(sc, phyctxt, chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_MODIFY, apply_time, sco); if (err) { printf("%s: could not update PHY context (error %d)\n", DEVNAME(sc), err); return err; } } phyctxt->sco = sco; return 0; } int iwm_auth(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; uint32_t duration; int generation = sc->sc_generation, err; splassert(IPL_NET); if (ic->ic_opmode == IEEE80211_M_MONITOR) { err = iwm_phy_ctxt_update(sc, &sc->sc_phyctxt[0], ic->ic_ibss_chan, 1, 1, 0, IEEE80211_HTOP0_SCO_SCN); if (err) return err; } else { err = iwm_phy_ctxt_update(sc, &sc->sc_phyctxt[0], in->in_ni.ni_chan, 1, 1, 0, IEEE80211_HTOP0_SCO_SCN); if (err) return err; } in->in_phyctxt = &sc->sc_phyctxt[0]; IEEE80211_ADDR_COPY(in->in_macaddr, in->in_ni.ni_macaddr); iwm_setrates(in, 0); err = iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_ADD, 0); if (err) { printf("%s: could not add MAC context (error %d)\n", DEVNAME(sc), err); return err; } sc->sc_flags |= IWM_FLAG_MAC_ACTIVE; err = iwm_binding_cmd(sc, in, IWM_FW_CTXT_ACTION_ADD); if (err) { printf("%s: could not add binding (error %d)\n", DEVNAME(sc), err); goto rm_mac_ctxt; } sc->sc_flags |= IWM_FLAG_BINDING_ACTIVE; in->tid_disable_ampdu = 0xffff; err = iwm_add_sta_cmd(sc, in, 0); if (err) { printf("%s: could not add sta (error %d)\n", DEVNAME(sc), err); goto rm_binding; } sc->sc_flags |= IWM_FLAG_STA_ACTIVE; if (ic->ic_opmode == IEEE80211_M_MONITOR) return 0; /* * Prevent the FW from wandering off channel during association * by "protecting" the session with a time event. */ if (in->in_ni.ni_intval) duration = in->in_ni.ni_intval * 2; else duration = IEEE80211_DUR_TU; iwm_protect_session(sc, in, duration, in->in_ni.ni_intval / 2); return 0; rm_binding: if (generation == sc->sc_generation) { iwm_binding_cmd(sc, in, IWM_FW_CTXT_ACTION_REMOVE); sc->sc_flags &= ~IWM_FLAG_BINDING_ACTIVE; } rm_mac_ctxt: if (generation == sc->sc_generation) { iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_REMOVE, 0); sc->sc_flags &= ~IWM_FLAG_MAC_ACTIVE; } return err; } int iwm_deauth(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; int err; splassert(IPL_NET); iwm_unprotect_session(sc, in); if (sc->sc_flags & IWM_FLAG_STA_ACTIVE) { err = iwm_flush_sta(sc, in); if (err) return err; err = iwm_rm_sta_cmd(sc, in); if (err) { printf("%s: could not remove STA (error %d)\n", DEVNAME(sc), err); return err; } in->tid_disable_ampdu = 0xffff; sc->sc_flags &= ~IWM_FLAG_STA_ACTIVE; sc->sc_rx_ba_sessions = 0; sc->ba_rx.start_tidmask = 0; sc->ba_rx.stop_tidmask = 0; sc->tx_ba_queue_mask = 0; sc->ba_tx.start_tidmask = 0; sc->ba_tx.stop_tidmask = 0; } if (sc->sc_flags & IWM_FLAG_BINDING_ACTIVE) { err = iwm_binding_cmd(sc, in, IWM_FW_CTXT_ACTION_REMOVE); if (err) { printf("%s: could not remove binding (error %d)\n", DEVNAME(sc), err); return err; } sc->sc_flags &= ~IWM_FLAG_BINDING_ACTIVE; } if (sc->sc_flags & IWM_FLAG_MAC_ACTIVE) { err = iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_REMOVE, 0); if (err) { printf("%s: could not remove MAC context (error %d)\n", DEVNAME(sc), err); return err; } sc->sc_flags &= ~IWM_FLAG_MAC_ACTIVE; } /* Move unused PHY context to a default channel. */ err = iwm_phy_ctxt_update(sc, &sc->sc_phyctxt[0], &ic->ic_channels[1], 1, 1, 0, IEEE80211_HTOP0_SCO_SCN); if (err) return err; return 0; } int iwm_run(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct ieee80211_node *ni = &in->in_ni; int err; splassert(IPL_NET); if (ic->ic_opmode == IEEE80211_M_MONITOR) { /* Add a MAC context and a sniffing STA. */ err = iwm_auth(sc); if (err) return err; } /* Configure Rx chains for MIMO and configure 40 MHz channel. */ if (ic->ic_opmode == IEEE80211_M_MONITOR) { uint8_t chains = iwm_mimo_enabled(sc) ? 2 : 1; err = iwm_phy_ctxt_update(sc, in->in_phyctxt, in->in_phyctxt->channel, chains, chains, 0, IEEE80211_HTOP0_SCO_SCN); if (err) { printf("%s: failed to update PHY\n", DEVNAME(sc)); return err; } } else if (ni->ni_flags & IEEE80211_NODE_HT) { uint8_t chains = iwm_mimo_enabled(sc) ? 2 : 1; uint8_t sco; if (ieee80211_node_supports_ht_chan40(ni)) sco = (ni->ni_htop0 & IEEE80211_HTOP0_SCO_MASK); else sco = IEEE80211_HTOP0_SCO_SCN; err = iwm_phy_ctxt_update(sc, in->in_phyctxt, in->in_phyctxt->channel, chains, chains, 0, sco); if (err) { printf("%s: failed to update PHY\n", DEVNAME(sc)); return err; } } /* Update STA again, for HT-related settings such as MIMO. */ err = iwm_add_sta_cmd(sc, in, 1); if (err) { printf("%s: could not update STA (error %d)\n", DEVNAME(sc), err); return err; } /* We have now been assigned an associd by the AP. */ err = iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_MODIFY, 1); if (err) { printf("%s: failed to update MAC\n", DEVNAME(sc)); return err; } err = iwm_sf_config(sc, IWM_SF_FULL_ON); if (err) { printf("%s: could not set sf full on (error %d)\n", DEVNAME(sc), err); return err; } err = iwm_allow_mcast(sc); if (err) { printf("%s: could not allow mcast (error %d)\n", DEVNAME(sc), err); return err; } err = iwm_power_update_device(sc); if (err) { printf("%s: could not send power command (error %d)\n", DEVNAME(sc), err); return err; } #ifdef notyet /* * Disabled for now. Default beacon filter settings * prevent net80211 from getting ERP and HT protection * updates from beacons. */ err = iwm_enable_beacon_filter(sc, in); if (err) { printf("%s: could not enable beacon filter\n", DEVNAME(sc)); return err; } #endif err = iwm_power_mac_update_mode(sc, in); if (err) { printf("%s: could not update MAC power (error %d)\n", DEVNAME(sc), err); return err; } if (!isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) { err = iwm_update_quotas(sc, in, 1); if (err) { printf("%s: could not update quotas (error %d)\n", DEVNAME(sc), err); return err; } } ieee80211_amrr_node_init(&sc->sc_amrr, &in->in_amn); ieee80211_ra_node_init(&in->in_rn); if (ic->ic_opmode == IEEE80211_M_MONITOR) { iwm_led_blink_start(sc); return 0; } /* Start at lowest available bit-rate, AMRR will raise. */ in->in_ni.ni_txrate = 0; in->in_ni.ni_txmcs = 0; iwm_setrates(in, 0); timeout_add_msec(&sc->sc_calib_to, 500); iwm_led_enable(sc); return 0; } int iwm_run_stop(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct ieee80211_node *ni = &in->in_ni; int err, i, tid; splassert(IPL_NET); /* * Stop Tx/Rx BA sessions now. We cannot rely on the BA task * for this when moving out of RUN state since it runs in a * separate thread. * Note that in->in_ni (struct ieee80211_node) already represents * our new access point in case we are roaming between APs. * This means we cannot rely on struct ieee802111_node to tell * us which BA sessions exist. */ for (i = 0; i < nitems(sc->sc_rxba_data); i++) { struct iwm_rxba_data *rxba = &sc->sc_rxba_data[i]; if (rxba->baid == IWM_RX_REORDER_DATA_INVALID_BAID) continue; err = iwm_sta_rx_agg(sc, ni, rxba->tid, 0, 0, 0, 0); if (err) return err; iwm_clear_reorder_buffer(sc, rxba); if (sc->sc_rx_ba_sessions > 0) sc->sc_rx_ba_sessions--; } for (tid = 0; tid < IWM_MAX_TID_COUNT; tid++) { int qid = IWM_FIRST_AGG_TX_QUEUE + tid; if ((sc->tx_ba_queue_mask & (1 << qid)) == 0) continue; err = iwm_sta_tx_agg(sc, ni, tid, 0, 0, 0); if (err) return err; err = iwm_disable_txq(sc, IWM_STATION_ID, qid, tid); if (err) return err; in->tfd_queue_msk &= ~(1 << qid); } ieee80211_ba_del(ni); if (ic->ic_opmode == IEEE80211_M_MONITOR) iwm_led_blink_stop(sc); err = iwm_sf_config(sc, IWM_SF_INIT_OFF); if (err) return err; iwm_disable_beacon_filter(sc); if (!isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) { err = iwm_update_quotas(sc, in, 0); if (err) { printf("%s: could not update quotas (error %d)\n", DEVNAME(sc), err); return err; } } /* Mark station as disassociated. */ err = iwm_mac_ctxt_cmd(sc, in, IWM_FW_CTXT_ACTION_MODIFY, 0); if (err) { printf("%s: failed to update MAC\n", DEVNAME(sc)); return err; } /* Reset Tx chains in case MIMO or 40 MHz channels were enabled. */ if (in->in_ni.ni_flags & IEEE80211_NODE_HT) { err = iwm_phy_ctxt_update(sc, in->in_phyctxt, in->in_phyctxt->channel, 1, 1, 0, IEEE80211_HTOP0_SCO_SCN); if (err) { printf("%s: failed to update PHY\n", DEVNAME(sc)); return err; } } return 0; } struct ieee80211_node * iwm_node_alloc(struct ieee80211com *ic) { return malloc(sizeof (struct iwm_node), M_DEVBUF, M_NOWAIT | M_ZERO); } int iwm_set_key_v1(struct ieee80211com *ic, struct ieee80211_node *ni, struct ieee80211_key *k) { struct iwm_softc *sc = ic->ic_softc; struct iwm_add_sta_key_cmd_v1 cmd; memset(&cmd, 0, sizeof(cmd)); cmd.common.key_flags = htole16(IWM_STA_KEY_FLG_CCM | IWM_STA_KEY_FLG_WEP_KEY_MAP | ((k->k_id << IWM_STA_KEY_FLG_KEYID_POS) & IWM_STA_KEY_FLG_KEYID_MSK)); if (k->k_flags & IEEE80211_KEY_GROUP) cmd.common.key_flags |= htole16(IWM_STA_KEY_MULTICAST); memcpy(cmd.common.key, k->k_key, MIN(sizeof(cmd.common.key), k->k_len)); cmd.common.key_offset = 0; cmd.common.sta_id = IWM_STATION_ID; return iwm_send_cmd_pdu(sc, IWM_ADD_STA_KEY, IWM_CMD_ASYNC, sizeof(cmd), &cmd); } int iwm_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, struct ieee80211_key *k) { struct iwm_softc *sc = ic->ic_softc; struct iwm_add_sta_key_cmd cmd; if ((k->k_flags & IEEE80211_KEY_GROUP) || k->k_cipher != IEEE80211_CIPHER_CCMP) { /* Fallback to software crypto for other ciphers. */ return (ieee80211_set_key(ic, ni, k)); } if (!isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_TKIP_MIC_KEYS)) return iwm_set_key_v1(ic, ni, k); memset(&cmd, 0, sizeof(cmd)); cmd.common.key_flags = htole16(IWM_STA_KEY_FLG_CCM | IWM_STA_KEY_FLG_WEP_KEY_MAP | ((k->k_id << IWM_STA_KEY_FLG_KEYID_POS) & IWM_STA_KEY_FLG_KEYID_MSK)); if (k->k_flags & IEEE80211_KEY_GROUP) cmd.common.key_flags |= htole16(IWM_STA_KEY_MULTICAST); memcpy(cmd.common.key, k->k_key, MIN(sizeof(cmd.common.key), k->k_len)); cmd.common.key_offset = 0; cmd.common.sta_id = IWM_STATION_ID; cmd.transmit_seq_cnt = htole64(k->k_tsc); return iwm_send_cmd_pdu(sc, IWM_ADD_STA_KEY, IWM_CMD_ASYNC, sizeof(cmd), &cmd); } void iwm_delete_key_v1(struct ieee80211com *ic, struct ieee80211_node *ni, struct ieee80211_key *k) { struct iwm_softc *sc = ic->ic_softc; struct iwm_add_sta_key_cmd_v1 cmd; memset(&cmd, 0, sizeof(cmd)); cmd.common.key_flags = htole16(IWM_STA_KEY_NOT_VALID | IWM_STA_KEY_FLG_NO_ENC | IWM_STA_KEY_FLG_WEP_KEY_MAP | ((k->k_id << IWM_STA_KEY_FLG_KEYID_POS) & IWM_STA_KEY_FLG_KEYID_MSK)); memcpy(cmd.common.key, k->k_key, MIN(sizeof(cmd.common.key), k->k_len)); cmd.common.key_offset = 0; cmd.common.sta_id = IWM_STATION_ID; iwm_send_cmd_pdu(sc, IWM_ADD_STA_KEY, IWM_CMD_ASYNC, sizeof(cmd), &cmd); } void iwm_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni, struct ieee80211_key *k) { struct iwm_softc *sc = ic->ic_softc; struct iwm_add_sta_key_cmd cmd; if ((k->k_flags & IEEE80211_KEY_GROUP) || (k->k_cipher != IEEE80211_CIPHER_CCMP)) { /* Fallback to software crypto for other ciphers. */ ieee80211_delete_key(ic, ni, k); return; } if (!isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_TKIP_MIC_KEYS)) return iwm_delete_key_v1(ic, ni, k); memset(&cmd, 0, sizeof(cmd)); cmd.common.key_flags = htole16(IWM_STA_KEY_NOT_VALID | IWM_STA_KEY_FLG_NO_ENC | IWM_STA_KEY_FLG_WEP_KEY_MAP | ((k->k_id << IWM_STA_KEY_FLG_KEYID_POS) & IWM_STA_KEY_FLG_KEYID_MSK)); memcpy(cmd.common.key, k->k_key, MIN(sizeof(cmd.common.key), k->k_len)); cmd.common.key_offset = 0; cmd.common.sta_id = IWM_STATION_ID; iwm_send_cmd_pdu(sc, IWM_ADD_STA_KEY, IWM_CMD_ASYNC, sizeof(cmd), &cmd); } void iwm_calib_timeout(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct ieee80211_node *ni = &in->in_ni; int s; s = splnet(); if ((ic->ic_fixed_rate == -1 || ic->ic_fixed_mcs == -1) && (ni->ni_flags & IEEE80211_NODE_HT) == 0 && ic->ic_opmode == IEEE80211_M_STA && ic->ic_bss) { int old_txrate = ni->ni_txrate; ieee80211_amrr_choose(&sc->sc_amrr, &in->in_ni, &in->in_amn); /* * If AMRR has chosen a new TX rate we must update * the firwmare's LQ rate table. * ni_txrate may change again before the task runs so * cache the chosen rate in the iwm_node structure. */ if (ni->ni_txrate != old_txrate) iwm_setrates(in, 1); } splx(s); timeout_add_msec(&sc->sc_calib_to, 500); } void iwm_setrates(struct iwm_node *in, int async) { struct ieee80211_node *ni = &in->in_ni; struct ieee80211com *ic = ni->ni_ic; struct iwm_softc *sc = IC2IFP(ic)->if_softc; struct iwm_lq_cmd lqcmd; struct ieee80211_rateset *rs = &ni->ni_rates; int i, ridx, ridx_min, ridx_max, j, mimo, tab = 0; struct iwm_host_cmd cmd = { .id = IWM_LQ_CMD, .len = { sizeof(lqcmd), }, }; cmd.flags = async ? IWM_CMD_ASYNC : 0; memset(&lqcmd, 0, sizeof(lqcmd)); lqcmd.sta_id = IWM_STATION_ID; if (ic->ic_flags & IEEE80211_F_USEPROT) lqcmd.flags |= IWM_LQ_FLAG_USE_RTS_MSK; /* * Fill the LQ rate selection table with legacy and/or HT rates * in descending order, i.e. with the node's current TX rate first. * In cases where throughput of an HT rate corresponds to a legacy * rate it makes no sense to add both. We rely on the fact that * iwm_rates is laid out such that equivalent HT/legacy rates share * the same IWM_RATE_*_INDEX value. Also, rates not applicable to * legacy/HT are assumed to be marked with an 'invalid' PLCP value. */ j = 0; ridx_min = iwm_rval2ridx(ieee80211_min_basic_rate(ic)); mimo = iwm_is_mimo_mcs(ni->ni_txmcs); ridx_max = (mimo ? IWM_RIDX_MAX : IWM_LAST_HT_SISO_RATE); for (ridx = ridx_max; ridx >= ridx_min; ridx--) { uint8_t plcp = iwm_rates[ridx].plcp; uint8_t ht_plcp = iwm_rates[ridx].ht_plcp; if (j >= nitems(lqcmd.rs_table)) break; tab = 0; if (ni->ni_flags & IEEE80211_NODE_HT) { if (ht_plcp == IWM_RATE_HT_SISO_MCS_INV_PLCP) continue; /* Do not mix SISO and MIMO HT rates. */ if ((mimo && !iwm_is_mimo_ht_plcp(ht_plcp)) || (!mimo && iwm_is_mimo_ht_plcp(ht_plcp))) continue; for (i = ni->ni_txmcs; i >= 0; i--) { if (isclr(ni->ni_rxmcs, i)) continue; if (ridx != iwm_mcs2ridx[i]) continue; tab = ht_plcp; tab |= IWM_RATE_MCS_HT_MSK; /* First two Tx attempts may use 40MHz/SGI. */ if (j > 1) break; if (in->in_phyctxt->sco == IEEE80211_HTOP0_SCO_SCA || in->in_phyctxt->sco == IEEE80211_HTOP0_SCO_SCB) { tab |= IWM_RATE_MCS_CHAN_WIDTH_40; tab |= IWM_RATE_MCS_RTS_REQUIRED_MSK; } if (ieee80211_ra_use_ht_sgi(ni)) tab |= IWM_RATE_MCS_SGI_MSK; break; } } else if (plcp != IWM_RATE_INVM_PLCP) { for (i = ni->ni_txrate; i >= 0; i--) { if (iwm_rates[ridx].rate == (rs->rs_rates[i] & IEEE80211_RATE_VAL)) { tab = plcp; break; } } } if (tab == 0) continue; if (iwm_is_mimo_ht_plcp(ht_plcp)) tab |= IWM_RATE_MCS_ANT_AB_MSK; else if (sc->sc_device_family == IWM_DEVICE_FAMILY_9000) tab |= IWM_RATE_MCS_ANT_B_MSK; else tab |= IWM_RATE_MCS_ANT_A_MSK; if (IWM_RIDX_IS_CCK(ridx)) tab |= IWM_RATE_MCS_CCK_MSK; lqcmd.rs_table[j++] = htole32(tab); } lqcmd.mimo_delim = (mimo ? j : 0); /* Fill the rest with the lowest possible rate */ while (j < nitems(lqcmd.rs_table)) { tab = iwm_rates[ridx_min].plcp; if (IWM_RIDX_IS_CCK(ridx_min)) tab |= IWM_RATE_MCS_CCK_MSK; if (sc->sc_device_family == IWM_DEVICE_FAMILY_9000) tab |= IWM_RATE_MCS_ANT_B_MSK; else tab |= IWM_RATE_MCS_ANT_A_MSK; lqcmd.rs_table[j++] = htole32(tab); } if (sc->sc_device_family == IWM_DEVICE_FAMILY_9000) lqcmd.single_stream_ant_msk = IWM_ANT_B; else lqcmd.single_stream_ant_msk = IWM_ANT_A; lqcmd.dual_stream_ant_msk = IWM_ANT_AB; lqcmd.agg_time_limit = htole16(4000); /* 4ms */ lqcmd.agg_disable_start_th = 3; lqcmd.agg_frame_cnt_limit = 0x3f; cmd.data[0] = &lqcmd; iwm_send_cmd(sc, &cmd); } int iwm_media_change(struct ifnet *ifp) { struct iwm_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; uint8_t rate, ridx; int err; err = ieee80211_media_change(ifp); if (err != ENETRESET) return err; if (ic->ic_fixed_mcs != -1) sc->sc_fixed_ridx = iwm_mcs2ridx[ic->ic_fixed_mcs]; else if (ic->ic_fixed_rate != -1) { rate = ic->ic_sup_rates[ic->ic_curmode]. rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; /* Map 802.11 rate to HW rate index. */ for (ridx = 0; ridx <= IWM_RIDX_MAX; ridx++) if (iwm_rates[ridx].rate == rate) break; sc->sc_fixed_ridx = ridx; } if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) { iwm_stop(ifp); err = iwm_init(ifp); } return err; } void iwm_newstate_task(void *psc) { struct iwm_softc *sc = (struct iwm_softc *)psc; struct ieee80211com *ic = &sc->sc_ic; enum ieee80211_state nstate = sc->ns_nstate; enum ieee80211_state ostate = ic->ic_state; int arg = sc->ns_arg; int err = 0, s = splnet(); if (sc->sc_flags & IWM_FLAG_SHUTDOWN) { /* iwm_stop() is waiting for us. */ refcnt_rele_wake(&sc->task_refs); splx(s); return; } if (ostate == IEEE80211_S_SCAN) { if (nstate == ostate) { if (sc->sc_flags & IWM_FLAG_SCANNING) { refcnt_rele_wake(&sc->task_refs); splx(s); return; } /* Firmware is no longer scanning. Do another scan. */ goto next_scan; } else iwm_led_blink_stop(sc); } if (nstate <= ostate) { switch (ostate) { case IEEE80211_S_RUN: err = iwm_run_stop(sc); if (err) goto out; /* FALLTHROUGH */ case IEEE80211_S_ASSOC: case IEEE80211_S_AUTH: if (nstate <= IEEE80211_S_AUTH) { err = iwm_deauth(sc); if (err) goto out; } /* FALLTHROUGH */ case IEEE80211_S_SCAN: case IEEE80211_S_INIT: break; } /* Die now if iwm_stop() was called while we were sleeping. */ if (sc->sc_flags & IWM_FLAG_SHUTDOWN) { refcnt_rele_wake(&sc->task_refs); splx(s); return; } } switch (nstate) { case IEEE80211_S_INIT: break; case IEEE80211_S_SCAN: next_scan: err = iwm_scan(sc); if (err) break; refcnt_rele_wake(&sc->task_refs); splx(s); return; case IEEE80211_S_AUTH: err = iwm_auth(sc); break; case IEEE80211_S_ASSOC: break; case IEEE80211_S_RUN: err = iwm_run(sc); break; } out: if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) { if (err) task_add(systq, &sc->init_task); else sc->sc_newstate(ic, nstate, arg); } refcnt_rele_wake(&sc->task_refs); splx(s); } int iwm_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) { struct ifnet *ifp = IC2IFP(ic); struct iwm_softc *sc = ifp->if_softc; /* * Prevent attempts to transition towards the same state, unless * we are scanning in which case a SCAN -> SCAN transition * triggers another scan iteration. And AUTH -> AUTH is needed * to support band-steering. */ if (sc->ns_nstate == nstate && nstate != IEEE80211_S_SCAN && nstate != IEEE80211_S_AUTH) return 0; if (ic->ic_state == IEEE80211_S_RUN) { timeout_del(&sc->sc_calib_to); iwm_del_task(sc, systq, &sc->ba_task); iwm_del_task(sc, systq, &sc->mac_ctxt_task); iwm_del_task(sc, systq, &sc->phy_ctxt_task); iwm_del_task(sc, systq, &sc->bgscan_done_task); } sc->ns_nstate = nstate; sc->ns_arg = arg; iwm_add_task(sc, sc->sc_nswq, &sc->newstate_task); return 0; } void iwm_endscan(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; if ((sc->sc_flags & (IWM_FLAG_SCANNING | IWM_FLAG_BGSCAN)) == 0) return; sc->sc_flags &= ~(IWM_FLAG_SCANNING | IWM_FLAG_BGSCAN); ieee80211_end_scan(&ic->ic_if); } /* * Aging and idle timeouts for the different possible scenarios * in default configuration */ static const uint32_t iwm_sf_full_timeout_def[IWM_SF_NUM_SCENARIO][IWM_SF_NUM_TIMEOUT_TYPES] = { { htole32(IWM_SF_SINGLE_UNICAST_AGING_TIMER_DEF), htole32(IWM_SF_SINGLE_UNICAST_IDLE_TIMER_DEF) }, { htole32(IWM_SF_AGG_UNICAST_AGING_TIMER_DEF), htole32(IWM_SF_AGG_UNICAST_IDLE_TIMER_DEF) }, { htole32(IWM_SF_MCAST_AGING_TIMER_DEF), htole32(IWM_SF_MCAST_IDLE_TIMER_DEF) }, { htole32(IWM_SF_BA_AGING_TIMER_DEF), htole32(IWM_SF_BA_IDLE_TIMER_DEF) }, { htole32(IWM_SF_TX_RE_AGING_TIMER_DEF), htole32(IWM_SF_TX_RE_IDLE_TIMER_DEF) }, }; /* * Aging and idle timeouts for the different possible scenarios * in single BSS MAC configuration. */ static const uint32_t iwm_sf_full_timeout[IWM_SF_NUM_SCENARIO][IWM_SF_NUM_TIMEOUT_TYPES] = { { htole32(IWM_SF_SINGLE_UNICAST_AGING_TIMER), htole32(IWM_SF_SINGLE_UNICAST_IDLE_TIMER) }, { htole32(IWM_SF_AGG_UNICAST_AGING_TIMER), htole32(IWM_SF_AGG_UNICAST_IDLE_TIMER) }, { htole32(IWM_SF_MCAST_AGING_TIMER), htole32(IWM_SF_MCAST_IDLE_TIMER) }, { htole32(IWM_SF_BA_AGING_TIMER), htole32(IWM_SF_BA_IDLE_TIMER) }, { htole32(IWM_SF_TX_RE_AGING_TIMER), htole32(IWM_SF_TX_RE_IDLE_TIMER) }, }; void iwm_fill_sf_command(struct iwm_softc *sc, struct iwm_sf_cfg_cmd *sf_cmd, struct ieee80211_node *ni) { int i, j, watermark; sf_cmd->watermark[IWM_SF_LONG_DELAY_ON] = htole32(IWM_SF_W_MARK_SCAN); /* * If we are in association flow - check antenna configuration * capabilities of the AP station, and choose the watermark accordingly. */ if (ni) { if (ni->ni_flags & IEEE80211_NODE_HT) { if (ni->ni_rxmcs[1] != 0) watermark = IWM_SF_W_MARK_MIMO2; else watermark = IWM_SF_W_MARK_SISO; } else { watermark = IWM_SF_W_MARK_LEGACY; } /* default watermark value for unassociated mode. */ } else { watermark = IWM_SF_W_MARK_MIMO2; } sf_cmd->watermark[IWM_SF_FULL_ON] = htole32(watermark); for (i = 0; i < IWM_SF_NUM_SCENARIO; i++) { for (j = 0; j < IWM_SF_NUM_TIMEOUT_TYPES; j++) { sf_cmd->long_delay_timeouts[i][j] = htole32(IWM_SF_LONG_DELAY_AGING_TIMER); } } if (ni) { memcpy(sf_cmd->full_on_timeouts, iwm_sf_full_timeout, sizeof(iwm_sf_full_timeout)); } else { memcpy(sf_cmd->full_on_timeouts, iwm_sf_full_timeout_def, sizeof(iwm_sf_full_timeout_def)); } } int iwm_sf_config(struct iwm_softc *sc, int new_state) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_sf_cfg_cmd sf_cmd = { .state = htole32(new_state), }; int err = 0; #if 0 /* only used for models with sdio interface, in iwlwifi */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_8000) sf_cmd.state |= htole32(IWM_SF_CFG_DUMMY_NOTIF_OFF); #endif switch (new_state) { case IWM_SF_UNINIT: case IWM_SF_INIT_OFF: iwm_fill_sf_command(sc, &sf_cmd, NULL); break; case IWM_SF_FULL_ON: iwm_fill_sf_command(sc, &sf_cmd, ic->ic_bss); break; default: return EINVAL; } err = iwm_send_cmd_pdu(sc, IWM_REPLY_SF_CFG_CMD, IWM_CMD_ASYNC, sizeof(sf_cmd), &sf_cmd); return err; } int iwm_send_bt_init_conf(struct iwm_softc *sc) { struct iwm_bt_coex_cmd bt_cmd; bt_cmd.mode = htole32(IWM_BT_COEX_WIFI); bt_cmd.enabled_modules = htole32(IWM_BT_COEX_HIGH_BAND_RET); return iwm_send_cmd_pdu(sc, IWM_BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd); } int iwm_send_soc_conf(struct iwm_softc *sc) { struct iwm_soc_configuration_cmd cmd; int err; uint32_t cmd_id, flags = 0; memset(&cmd, 0, sizeof(cmd)); /* * In VER_1 of this command, the discrete value is considered * an integer; In VER_2, it's a bitmask. Since we have only 2 * values in VER_1, this is backwards-compatible with VER_2, * as long as we don't set any other flag bits. */ if (!sc->sc_integrated) { /* VER_1 */ flags = IWM_SOC_CONFIG_CMD_FLAGS_DISCRETE; } else { /* VER_2 */ uint8_t scan_cmd_ver; if (sc->sc_ltr_delay != IWM_SOC_FLAGS_LTR_APPLY_DELAY_NONE) flags |= (sc->sc_ltr_delay & IWM_SOC_FLAGS_LTR_APPLY_DELAY_MASK); scan_cmd_ver = iwm_lookup_cmd_ver(sc, IWM_LONG_GROUP, IWM_SCAN_REQ_UMAC); if (scan_cmd_ver != IWM_FW_CMD_VER_UNKNOWN && scan_cmd_ver >= 2 && sc->sc_low_latency_xtal) flags |= IWM_SOC_CONFIG_CMD_FLAGS_LOW_LATENCY; } cmd.flags = htole32(flags); cmd.latency = htole32(sc->sc_xtal_latency); cmd_id = iwm_cmd_id(IWM_SOC_CONFIGURATION_CMD, IWM_SYSTEM_GROUP, 0); err = iwm_send_cmd_pdu(sc, cmd_id, 0, sizeof(cmd), &cmd); if (err) printf("%s: failed to set soc latency: %d\n", DEVNAME(sc), err); return err; } int iwm_send_update_mcc_cmd(struct iwm_softc *sc, const char *alpha2) { struct iwm_mcc_update_cmd mcc_cmd; struct iwm_host_cmd hcmd = { .id = IWM_MCC_UPDATE_CMD, .flags = IWM_CMD_WANT_RESP, .resp_pkt_len = IWM_CMD_RESP_MAX, .data = { &mcc_cmd }, }; struct iwm_rx_packet *pkt; size_t resp_len; int err; int resp_v3 = isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_LAR_SUPPORT_V3); if (sc->sc_device_family == IWM_DEVICE_FAMILY_8000 && !sc->sc_nvm.lar_enabled) { return 0; } memset(&mcc_cmd, 0, sizeof(mcc_cmd)); mcc_cmd.mcc = htole16(alpha2[0] << 8 | alpha2[1]); if (isset(sc->sc_ucode_api, IWM_UCODE_TLV_API_WIFI_MCC_UPDATE) || isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_LAR_MULTI_MCC)) mcc_cmd.source_id = IWM_MCC_SOURCE_GET_CURRENT; else mcc_cmd.source_id = IWM_MCC_SOURCE_OLD_FW; if (resp_v3) { /* same size as resp_v2 */ hcmd.len[0] = sizeof(struct iwm_mcc_update_cmd); } else { hcmd.len[0] = sizeof(struct iwm_mcc_update_cmd_v1); } err = iwm_send_cmd(sc, &hcmd); if (err) return err; pkt = hcmd.resp_pkt; if (!pkt || (pkt->hdr.flags & IWM_CMD_FAILED_MSK)) { err = EIO; goto out; } if (resp_v3) { struct iwm_mcc_update_resp_v3 *resp; resp_len = iwm_rx_packet_payload_len(pkt); if (resp_len < sizeof(*resp)) { err = EIO; goto out; } resp = (void *)pkt->data; if (resp_len != sizeof(*resp) + resp->n_channels * sizeof(resp->channels[0])) { err = EIO; goto out; } } else { struct iwm_mcc_update_resp_v1 *resp_v1; resp_len = iwm_rx_packet_payload_len(pkt); if (resp_len < sizeof(*resp_v1)) { err = EIO; goto out; } resp_v1 = (void *)pkt->data; if (resp_len != sizeof(*resp_v1) + resp_v1->n_channels * sizeof(resp_v1->channels[0])) { err = EIO; goto out; } } out: iwm_free_resp(sc, &hcmd); return err; } int iwm_send_temp_report_ths_cmd(struct iwm_softc *sc) { struct iwm_temp_report_ths_cmd cmd; int err; /* * In order to give responsibility for critical-temperature-kill * and TX backoff to FW we need to send an empty temperature * reporting command at init time. */ memset(&cmd, 0, sizeof(cmd)); err = iwm_send_cmd_pdu(sc, IWM_WIDE_ID(IWM_PHY_OPS_GROUP, IWM_TEMP_REPORTING_THRESHOLDS_CMD), 0, sizeof(cmd), &cmd); if (err) printf("%s: TEMP_REPORT_THS_CMD command failed (error %d)\n", DEVNAME(sc), err); return err; } void iwm_tt_tx_backoff(struct iwm_softc *sc, uint32_t backoff) { struct iwm_host_cmd cmd = { .id = IWM_REPLY_THERMAL_MNG_BACKOFF, .len = { sizeof(uint32_t), }, .data = { &backoff, }, }; iwm_send_cmd(sc, &cmd); } void iwm_free_fw_paging(struct iwm_softc *sc) { int i; if (sc->fw_paging_db[0].fw_paging_block.vaddr == NULL) return; for (i = 0; i < IWM_NUM_OF_FW_PAGING_BLOCKS; i++) { iwm_dma_contig_free(&sc->fw_paging_db[i].fw_paging_block); } memset(sc->fw_paging_db, 0, sizeof(sc->fw_paging_db)); } int iwm_fill_paging_mem(struct iwm_softc *sc, const struct iwm_fw_sects *image) { int sec_idx, idx; uint32_t offset = 0; /* * find where is the paging image start point: * if CPU2 exist and it's in paging format, then the image looks like: * CPU1 sections (2 or more) * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2 * CPU2 sections (not paged) * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2 * non paged to CPU2 paging sec * CPU2 paging CSS * CPU2 paging image (including instruction and data) */ for (sec_idx = 0; sec_idx < IWM_UCODE_SECT_MAX; sec_idx++) { if (image->fw_sect[sec_idx].fws_devoff == IWM_PAGING_SEPARATOR_SECTION) { sec_idx++; break; } } /* * If paging is enabled there should be at least 2 more sections left * (one for CSS and one for Paging data) */ if (sec_idx >= nitems(image->fw_sect) - 1) { printf("%s: Paging: Missing CSS and/or paging sections\n", DEVNAME(sc)); iwm_free_fw_paging(sc); return EINVAL; } /* copy the CSS block to the dram */ DPRINTF(("%s: Paging: load paging CSS to FW, sec = %d\n", DEVNAME(sc), sec_idx)); memcpy(sc->fw_paging_db[0].fw_paging_block.vaddr, image->fw_sect[sec_idx].fws_data, sc->fw_paging_db[0].fw_paging_size); DPRINTF(("%s: Paging: copied %d CSS bytes to first block\n", DEVNAME(sc), sc->fw_paging_db[0].fw_paging_size)); sec_idx++; /* * copy the paging blocks to the dram * loop index start from 1 since that CSS block already copied to dram * and CSS index is 0. * loop stop at num_of_paging_blk since that last block is not full. */ for (idx = 1; idx < sc->num_of_paging_blk; idx++) { memcpy(sc->fw_paging_db[idx].fw_paging_block.vaddr, (const char *)image->fw_sect[sec_idx].fws_data + offset, sc->fw_paging_db[idx].fw_paging_size); DPRINTF(("%s: Paging: copied %d paging bytes to block %d\n", DEVNAME(sc), sc->fw_paging_db[idx].fw_paging_size, idx)); offset += sc->fw_paging_db[idx].fw_paging_size; } /* copy the last paging block */ if (sc->num_of_pages_in_last_blk > 0) { memcpy(sc->fw_paging_db[idx].fw_paging_block.vaddr, (const char *)image->fw_sect[sec_idx].fws_data + offset, IWM_FW_PAGING_SIZE * sc->num_of_pages_in_last_blk); DPRINTF(("%s: Paging: copied %d pages in the last block %d\n", DEVNAME(sc), sc->num_of_pages_in_last_blk, idx)); } return 0; } int iwm_alloc_fw_paging_mem(struct iwm_softc *sc, const struct iwm_fw_sects *image) { int blk_idx = 0; int error, num_of_pages; if (sc->fw_paging_db[0].fw_paging_block.vaddr != NULL) { int i; /* Device got reset, and we setup firmware paging again */ bus_dmamap_sync(sc->sc_dmat, sc->fw_paging_db[0].fw_paging_block.map, 0, IWM_FW_PAGING_SIZE, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); for (i = 1; i < sc->num_of_paging_blk + 1; i++) { bus_dmamap_sync(sc->sc_dmat, sc->fw_paging_db[i].fw_paging_block.map, 0, IWM_PAGING_BLOCK_SIZE, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); } return 0; } /* ensure IWM_BLOCK_2_EXP_SIZE is power of 2 of IWM_PAGING_BLOCK_SIZE */ #if (1 << IWM_BLOCK_2_EXP_SIZE) != IWM_PAGING_BLOCK_SIZE #error IWM_BLOCK_2_EXP_SIZE must be power of 2 of IWM_PAGING_BLOCK_SIZE #endif num_of_pages = image->paging_mem_size / IWM_FW_PAGING_SIZE; sc->num_of_paging_blk = ((num_of_pages - 1) / IWM_NUM_OF_PAGE_PER_GROUP) + 1; sc->num_of_pages_in_last_blk = num_of_pages - IWM_NUM_OF_PAGE_PER_GROUP * (sc->num_of_paging_blk - 1); DPRINTF(("%s: Paging: allocating mem for %d paging blocks, each block" " holds 8 pages, last block holds %d pages\n", DEVNAME(sc), sc->num_of_paging_blk, sc->num_of_pages_in_last_blk)); /* allocate block of 4Kbytes for paging CSS */ error = iwm_dma_contig_alloc(sc->sc_dmat, &sc->fw_paging_db[blk_idx].fw_paging_block, IWM_FW_PAGING_SIZE, 4096); if (error) { /* free all the previous pages since we failed */ iwm_free_fw_paging(sc); return ENOMEM; } sc->fw_paging_db[blk_idx].fw_paging_size = IWM_FW_PAGING_SIZE; DPRINTF(("%s: Paging: allocated 4K(CSS) bytes for firmware paging.\n", DEVNAME(sc))); /* * allocate blocks in dram. * since that CSS allocated in fw_paging_db[0] loop start from index 1 */ for (blk_idx = 1; blk_idx < sc->num_of_paging_blk + 1; blk_idx++) { /* allocate block of IWM_PAGING_BLOCK_SIZE (32K) */ /* XXX Use iwm_dma_contig_alloc for allocating */ error = iwm_dma_contig_alloc(sc->sc_dmat, &sc->fw_paging_db[blk_idx].fw_paging_block, IWM_PAGING_BLOCK_SIZE, 4096); if (error) { /* free all the previous pages since we failed */ iwm_free_fw_paging(sc); return ENOMEM; } sc->fw_paging_db[blk_idx].fw_paging_size = IWM_PAGING_BLOCK_SIZE; DPRINTF(( "%s: Paging: allocated 32K bytes for firmware paging.\n", DEVNAME(sc))); } return 0; } int iwm_save_fw_paging(struct iwm_softc *sc, const struct iwm_fw_sects *fw) { int ret; ret = iwm_alloc_fw_paging_mem(sc, fw); if (ret) return ret; return iwm_fill_paging_mem(sc, fw); } /* send paging cmd to FW in case CPU2 has paging image */ int iwm_send_paging_cmd(struct iwm_softc *sc, const struct iwm_fw_sects *fw) { int blk_idx; uint32_t dev_phy_addr; struct iwm_fw_paging_cmd fw_paging_cmd = { .flags = htole32(IWM_PAGING_CMD_IS_SECURED | IWM_PAGING_CMD_IS_ENABLED | (sc->num_of_pages_in_last_blk << IWM_PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)), .block_size = htole32(IWM_BLOCK_2_EXP_SIZE), .block_num = htole32(sc->num_of_paging_blk), }; /* loop for for all paging blocks + CSS block */ for (blk_idx = 0; blk_idx < sc->num_of_paging_blk + 1; blk_idx++) { dev_phy_addr = htole32( sc->fw_paging_db[blk_idx].fw_paging_block.paddr >> IWM_PAGE_2_EXP_SIZE); fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr; bus_dmamap_sync(sc->sc_dmat, sc->fw_paging_db[blk_idx].fw_paging_block.map, 0, blk_idx == 0 ? IWM_FW_PAGING_SIZE : IWM_PAGING_BLOCK_SIZE, BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); } return iwm_send_cmd_pdu(sc, iwm_cmd_id(IWM_FW_PAGING_BLOCK_CMD, IWM_LONG_GROUP, 0), 0, sizeof(fw_paging_cmd), &fw_paging_cmd); } int iwm_init_hw(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; int err, i, ac, qid, s; err = iwm_run_init_mvm_ucode(sc, 0); if (err) return err; /* Should stop and start HW since INIT image just loaded. */ iwm_stop_device(sc); err = iwm_start_hw(sc); if (err) { printf("%s: could not initialize hardware\n", DEVNAME(sc)); return err; } /* Restart, this time with the regular firmware */ s = splnet(); err = iwm_load_ucode_wait_alive(sc, IWM_UCODE_TYPE_REGULAR); if (err) { printf("%s: could not load firmware\n", DEVNAME(sc)); splx(s); return err; } if (!iwm_nic_lock(sc)) { splx(s); return EBUSY; } err = iwm_send_tx_ant_cfg(sc, iwm_fw_valid_tx_ant(sc)); if (err) { printf("%s: could not init tx ant config (error %d)\n", DEVNAME(sc), err); goto err; } err = iwm_send_phy_db_data(sc); if (err) { printf("%s: could not init phy db (error %d)\n", DEVNAME(sc), err); goto err; } err = iwm_send_phy_cfg_cmd(sc); if (err) { printf("%s: could not send phy config (error %d)\n", DEVNAME(sc), err); goto err; } err = iwm_send_bt_init_conf(sc); if (err) { printf("%s: could not init bt coex (error %d)\n", DEVNAME(sc), err); goto err; } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT)) { err = iwm_send_soc_conf(sc); if (err) goto err; } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) { err = iwm_send_dqa_cmd(sc); if (err) goto err; } /* Add auxiliary station for scanning */ err = iwm_add_aux_sta(sc); if (err) { printf("%s: could not add aux station (error %d)\n", DEVNAME(sc), err); goto err; } for (i = 0; i < IWM_NUM_PHY_CTX; i++) { /* * The channel used here isn't relevant as it's * going to be overwritten in the other flows. * For now use the first channel we have. */ sc->sc_phyctxt[i].id = i; sc->sc_phyctxt[i].channel = &ic->ic_channels[1]; err = iwm_phy_ctxt_cmd(sc, &sc->sc_phyctxt[i], 1, 1, IWM_FW_CTXT_ACTION_ADD, 0, IEEE80211_HTOP0_SCO_SCN); if (err) { printf("%s: could not add phy context %d (error %d)\n", DEVNAME(sc), i, err); goto err; } } /* Initialize tx backoffs to the minimum. */ if (sc->sc_device_family == IWM_DEVICE_FAMILY_7000) iwm_tt_tx_backoff(sc, 0); err = iwm_config_ltr(sc); if (err) { printf("%s: PCIe LTR configuration failed (error %d)\n", DEVNAME(sc), err); } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_CT_KILL_BY_FW)) { err = iwm_send_temp_report_ths_cmd(sc); if (err) goto err; } err = iwm_power_update_device(sc); if (err) { printf("%s: could not send power command (error %d)\n", DEVNAME(sc), err); goto err; } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_LAR_SUPPORT)) { err = iwm_send_update_mcc_cmd(sc, "ZZ"); if (err) { printf("%s: could not init LAR (error %d)\n", DEVNAME(sc), err); goto err; } } if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_UMAC_SCAN)) { err = iwm_config_umac_scan(sc); if (err) { printf("%s: could not configure scan (error %d)\n", DEVNAME(sc), err); goto err; } } if (ic->ic_opmode == IEEE80211_M_MONITOR) { if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) qid = IWM_DQA_INJECT_MONITOR_QUEUE; else qid = IWM_AUX_QUEUE; err = iwm_enable_txq(sc, IWM_MONITOR_STA_ID, qid, iwm_ac_to_tx_fifo[EDCA_AC_BE], 0, IWM_MAX_TID_COUNT, 0); if (err) { printf("%s: could not enable monitor inject Tx queue " "(error %d)\n", DEVNAME(sc), err); goto err; } } else { for (ac = 0; ac < EDCA_NUM_AC; ac++) { if (isset(sc->sc_enabled_capa, IWM_UCODE_TLV_CAPA_DQA_SUPPORT)) qid = ac + IWM_DQA_MIN_MGMT_QUEUE; else qid = ac; err = iwm_enable_txq(sc, IWM_STATION_ID, qid, iwm_ac_to_tx_fifo[ac], 0, IWM_TID_NON_QOS, 0); if (err) { printf("%s: could not enable Tx queue %d " "(error %d)\n", DEVNAME(sc), ac, err); goto err; } } } err = iwm_disable_beacon_filter(sc); if (err) { printf("%s: could not disable beacon filter (error %d)\n", DEVNAME(sc), err); goto err; } err: iwm_nic_unlock(sc); splx(s); return err; } /* Allow multicast from our BSSID. */ int iwm_allow_mcast(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; struct iwm_mcast_filter_cmd *cmd; size_t size; int err; size = roundup(sizeof(*cmd), 4); cmd = malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO); if (cmd == NULL) return ENOMEM; cmd->filter_own = 1; cmd->port_id = 0; cmd->count = 0; cmd->pass_all = 1; IEEE80211_ADDR_COPY(cmd->bssid, in->in_macaddr); err = iwm_send_cmd_pdu(sc, IWM_MCAST_FILTER_CMD, 0, size, cmd); free(cmd, M_DEVBUF, size); return err; } int iwm_init(struct ifnet *ifp) { struct iwm_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; int err, generation; rw_assert_wrlock(&sc->ioctl_rwl); generation = ++sc->sc_generation; KASSERT(sc->task_refs.refs == 0); refcnt_init(&sc->task_refs); err = iwm_preinit(sc); if (err) return err; err = iwm_start_hw(sc); if (err) { printf("%s: could not initialize hardware\n", DEVNAME(sc)); return err; } err = iwm_init_hw(sc); if (err) { if (generation == sc->sc_generation) iwm_stop(ifp); return err; } if (sc->sc_nvm.sku_cap_11n_enable) iwm_setup_ht_rates(sc); ifq_clr_oactive(&ifp->if_snd); ifp->if_flags |= IFF_RUNNING; if (ic->ic_opmode == IEEE80211_M_MONITOR) { ic->ic_bss->ni_chan = ic->ic_ibss_chan; ieee80211_new_state(ic, IEEE80211_S_RUN, -1); return 0; } ieee80211_begin_scan(ifp); /* * ieee80211_begin_scan() ends up scheduling iwm_newstate_task(). * Wait until the transition to SCAN state has completed. */ do { err = tsleep_nsec(&ic->ic_state, PCATCH, "iwminit", SEC_TO_NSEC(1)); if (generation != sc->sc_generation) return ENXIO; if (err) { iwm_stop(ifp); return err; } } while (ic->ic_state != IEEE80211_S_SCAN); return 0; } void iwm_start(struct ifnet *ifp) { struct iwm_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni; struct ether_header *eh; struct mbuf *m; int ac = EDCA_AC_BE; /* XXX */ if (!(ifp->if_flags & IFF_RUNNING) || ifq_is_oactive(&ifp->if_snd)) return; for (;;) { /* why isn't this done per-queue? */ if (sc->qfullmsk != 0) { ifq_set_oactive(&ifp->if_snd); break; } /* Don't queue additional frames while flushing Tx queues. */ if (sc->sc_flags & IWM_FLAG_TXFLUSH) break; /* need to send management frames even if we're not RUNning */ m = mq_dequeue(&ic->ic_mgtq); if (m) { ni = m->m_pkthdr.ph_cookie; goto sendit; } if (ic->ic_state != IEEE80211_S_RUN || (ic->ic_xflags & IEEE80211_F_TX_MGMT_ONLY)) break; m = ifq_dequeue(&ifp->if_snd); if (!m) break; if (m->m_len < sizeof (*eh) && (m = m_pullup(m, sizeof (*eh))) == NULL) { ifp->if_oerrors++; continue; } #if NBPFILTER > 0 if (ifp->if_bpf != NULL) bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); #endif if ((m = ieee80211_encap(ifp, m, &ni)) == NULL) { ifp->if_oerrors++; continue; } sendit: #if NBPFILTER > 0 if (ic->ic_rawbpf != NULL) bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT); #endif if (iwm_tx(sc, m, ni, ac) != 0) { ieee80211_release_node(ic, ni); ifp->if_oerrors++; continue; } if (ifp->if_flags & IFF_UP) ifp->if_timer = 1; } return; } void iwm_stop(struct ifnet *ifp) { struct iwm_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct iwm_node *in = (void *)ic->ic_bss; int i, s = splnet(); rw_assert_wrlock(&sc->ioctl_rwl); sc->sc_flags |= IWM_FLAG_SHUTDOWN; /* Disallow new tasks. */ /* Cancel scheduled tasks and let any stale tasks finish up. */ task_del(systq, &sc->init_task); iwm_del_task(sc, sc->sc_nswq, &sc->newstate_task); iwm_del_task(sc, systq, &sc->ba_task); iwm_del_task(sc, systq, &sc->mac_ctxt_task); iwm_del_task(sc, systq, &sc->phy_ctxt_task); iwm_del_task(sc, systq, &sc->bgscan_done_task); KASSERT(sc->task_refs.refs >= 1); refcnt_finalize(&sc->task_refs, "iwmstop"); iwm_stop_device(sc); free(sc->bgscan_unref_arg, M_DEVBUF, sc->bgscan_unref_arg_size); sc->bgscan_unref_arg = NULL; sc->bgscan_unref_arg_size = 0; /* Reset soft state. */ sc->sc_generation++; for (i = 0; i < nitems(sc->sc_cmd_resp_pkt); i++) { free(sc->sc_cmd_resp_pkt[i], M_DEVBUF, sc->sc_cmd_resp_len[i]); sc->sc_cmd_resp_pkt[i] = NULL; sc->sc_cmd_resp_len[i] = 0; } ifp->if_flags &= ~IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); in->in_phyctxt = NULL; in->tid_disable_ampdu = 0xffff; in->tfd_queue_msk = 0; IEEE80211_ADDR_COPY(in->in_macaddr, etheranyaddr); sc->sc_flags &= ~(IWM_FLAG_SCANNING | IWM_FLAG_BGSCAN); sc->sc_flags &= ~IWM_FLAG_MAC_ACTIVE; sc->sc_flags &= ~IWM_FLAG_BINDING_ACTIVE; sc->sc_flags &= ~IWM_FLAG_STA_ACTIVE; sc->sc_flags &= ~IWM_FLAG_TE_ACTIVE; sc->sc_flags &= ~IWM_FLAG_HW_ERR; sc->sc_flags &= ~IWM_FLAG_SHUTDOWN; sc->sc_flags &= ~IWM_FLAG_TXFLUSH; sc->sc_rx_ba_sessions = 0; sc->ba_rx.start_tidmask = 0; sc->ba_rx.stop_tidmask = 0; sc->tx_ba_queue_mask = 0; sc->ba_tx.start_tidmask = 0; sc->ba_tx.stop_tidmask = 0; sc->sc_newstate(ic, IEEE80211_S_INIT, -1); sc->ns_nstate = IEEE80211_S_INIT; timeout_del(&sc->sc_calib_to); /* XXX refcount? */ for (i = 0; i < nitems(sc->sc_rxba_data); i++) { struct iwm_rxba_data *rxba = &sc->sc_rxba_data[i]; iwm_clear_reorder_buffer(sc, rxba); } iwm_led_blink_stop(sc); memset(sc->sc_tx_timer, 0, sizeof(sc->sc_tx_timer)); ifp->if_timer = 0; splx(s); } void iwm_watchdog(struct ifnet *ifp) { struct iwm_softc *sc = ifp->if_softc; int i; ifp->if_timer = 0; /* * We maintain a separate timer for each Tx queue because * Tx aggregation queues can get "stuck" while other queues * keep working. The Linux driver uses a similar workaround. */ for (i = 0; i < nitems(sc->sc_tx_timer); i++) { if (sc->sc_tx_timer[i] > 0) { if (--sc->sc_tx_timer[i] == 0) { printf("%s: device timeout\n", DEVNAME(sc)); if (ifp->if_flags & IFF_DEBUG) { iwm_nic_error(sc); iwm_dump_driver_status(sc); } if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) task_add(systq, &sc->init_task); ifp->if_oerrors++; return; } ifp->if_timer = 1; } } ieee80211_watchdog(ifp); } int iwm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct iwm_softc *sc = ifp->if_softc; int s, err = 0, generation = sc->sc_generation; /* * Prevent processes from entering this function while another * process is tsleep'ing in it. */ err = rw_enter(&sc->ioctl_rwl, RW_WRITE | RW_INTR); if (err == 0 && generation != sc->sc_generation) { rw_exit(&sc->ioctl_rwl); return ENXIO; } if (err) return err; s = splnet(); switch (cmd) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; /* FALLTHROUGH */ case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (!(ifp->if_flags & IFF_RUNNING)) { /* Force reload of firmware image from disk. */ sc->sc_fw.fw_status = IWM_FW_STATUS_NONE; err = iwm_init(ifp); } } else { if (ifp->if_flags & IFF_RUNNING) iwm_stop(ifp); } break; default: err = ieee80211_ioctl(ifp, cmd, data); } if (err == ENETRESET) { err = 0; if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) { iwm_stop(ifp); err = iwm_init(ifp); } } splx(s); rw_exit(&sc->ioctl_rwl); return err; } /* * Note: This structure is read from the device with IO accesses, * and the reading already does the endian conversion. As it is * read with uint32_t-sized accesses, any members with a different size * need to be ordered correctly though! */ struct iwm_error_event_table { uint32_t valid; /* (nonzero) valid, (0) log is empty */ uint32_t error_id; /* type of error */ uint32_t trm_hw_status0; /* TRM HW status */ uint32_t trm_hw_status1; /* TRM HW status */ uint32_t blink2; /* branch link */ uint32_t ilink1; /* interrupt link */ uint32_t ilink2; /* interrupt link */ uint32_t data1; /* error-specific data */ uint32_t data2; /* error-specific data */ uint32_t data3; /* error-specific data */ uint32_t bcon_time; /* beacon timer */ uint32_t tsf_low; /* network timestamp function timer */ uint32_t tsf_hi; /* network timestamp function timer */ uint32_t gp1; /* GP1 timer register */ uint32_t gp2; /* GP2 timer register */ uint32_t fw_rev_type; /* firmware revision type */ uint32_t major; /* uCode version major */ uint32_t minor; /* uCode version minor */ uint32_t hw_ver; /* HW Silicon version */ uint32_t brd_ver; /* HW board version */ uint32_t log_pc; /* log program counter */ uint32_t frame_ptr; /* frame pointer */ uint32_t stack_ptr; /* stack pointer */ uint32_t hcmd; /* last host command header */ uint32_t isr0; /* isr status register LMPM_NIC_ISR0: * rxtx_flag */ uint32_t isr1; /* isr status register LMPM_NIC_ISR1: * host_flag */ uint32_t isr2; /* isr status register LMPM_NIC_ISR2: * enc_flag */ uint32_t isr3; /* isr status register LMPM_NIC_ISR3: * time_flag */ uint32_t isr4; /* isr status register LMPM_NIC_ISR4: * wico interrupt */ uint32_t last_cmd_id; /* last HCMD id handled by the firmware */ uint32_t wait_event; /* wait event() caller address */ uint32_t l2p_control; /* L2pControlField */ uint32_t l2p_duration; /* L2pDurationField */ uint32_t l2p_mhvalid; /* L2pMhValidBits */ uint32_t l2p_addr_match; /* L2pAddrMatchStat */ uint32_t lmpm_pmg_sel; /* indicate which clocks are turned on * (LMPM_PMG_SEL) */ uint32_t u_timestamp; /* indicate when the date and time of the * compilation */ uint32_t flow_handler; /* FH read/write pointers, RX credit */ } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; /* * UMAC error struct - relevant starting from family 8000 chip. * Note: This structure is read from the device with IO accesses, * and the reading already does the endian conversion. As it is * read with u32-sized accesses, any members with a different size * need to be ordered correctly though! */ struct iwm_umac_error_event_table { uint32_t valid; /* (nonzero) valid, (0) log is empty */ uint32_t error_id; /* type of error */ uint32_t blink1; /* branch link */ uint32_t blink2; /* branch link */ uint32_t ilink1; /* interrupt link */ uint32_t ilink2; /* interrupt link */ uint32_t data1; /* error-specific data */ uint32_t data2; /* error-specific data */ uint32_t data3; /* error-specific data */ uint32_t umac_major; uint32_t umac_minor; uint32_t frame_pointer; /* core register 27*/ uint32_t stack_pointer; /* core register 28 */ uint32_t cmd_header; /* latest host cmd sent to UMAC */ uint32_t nic_isr_pref; /* ISR status register */ } __packed; #define ERROR_START_OFFSET (1 * sizeof(uint32_t)) #define ERROR_ELEM_SIZE (7 * sizeof(uint32_t)) void iwm_nic_umac_error(struct iwm_softc *sc) { struct iwm_umac_error_event_table table; uint32_t base; base = sc->sc_uc.uc_umac_error_event_table; if (base < 0x800000) { printf("%s: Invalid error log pointer 0x%08x\n", DEVNAME(sc), base); return; } if (iwm_read_mem(sc, base, &table, sizeof(table)/sizeof(uint32_t))) { printf("%s: reading errlog failed\n", DEVNAME(sc)); return; } if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { printf("%s: Start UMAC Error Log Dump:\n", DEVNAME(sc)); printf("%s: Status: 0x%x, count: %d\n", DEVNAME(sc), sc->sc_flags, table.valid); } printf("%s: 0x%08X | %s\n", DEVNAME(sc), table.error_id, iwm_desc_lookup(table.error_id)); printf("%s: 0x%08X | umac branchlink1\n", DEVNAME(sc), table.blink1); printf("%s: 0x%08X | umac branchlink2\n", DEVNAME(sc), table.blink2); printf("%s: 0x%08X | umac interruptlink1\n", DEVNAME(sc), table.ilink1); printf("%s: 0x%08X | umac interruptlink2\n", DEVNAME(sc), table.ilink2); printf("%s: 0x%08X | umac data1\n", DEVNAME(sc), table.data1); printf("%s: 0x%08X | umac data2\n", DEVNAME(sc), table.data2); printf("%s: 0x%08X | umac data3\n", DEVNAME(sc), table.data3); printf("%s: 0x%08X | umac major\n", DEVNAME(sc), table.umac_major); printf("%s: 0x%08X | umac minor\n", DEVNAME(sc), table.umac_minor); printf("%s: 0x%08X | frame pointer\n", DEVNAME(sc), table.frame_pointer); printf("%s: 0x%08X | stack pointer\n", DEVNAME(sc), table.stack_pointer); printf("%s: 0x%08X | last host cmd\n", DEVNAME(sc), table.cmd_header); printf("%s: 0x%08X | isr status reg\n", DEVNAME(sc), table.nic_isr_pref); } #define IWM_FW_SYSASSERT_CPU_MASK 0xf0000000 static struct { const char *name; uint8_t num; } advanced_lookup[] = { { "NMI_INTERRUPT_WDG", 0x34 }, { "SYSASSERT", 0x35 }, { "UCODE_VERSION_MISMATCH", 0x37 }, { "BAD_COMMAND", 0x38 }, { "BAD_COMMAND", 0x39 }, { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, { "FATAL_ERROR", 0x3D }, { "NMI_TRM_HW_ERR", 0x46 }, { "NMI_INTERRUPT_TRM", 0x4C }, { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, { "NMI_INTERRUPT_HOST", 0x66 }, { "NMI_INTERRUPT_LMAC_FATAL", 0x70 }, { "NMI_INTERRUPT_UMAC_FATAL", 0x71 }, { "NMI_INTERRUPT_OTHER_LMAC_FATAL", 0x73 }, { "NMI_INTERRUPT_ACTION_PT", 0x7C }, { "NMI_INTERRUPT_UNKNOWN", 0x84 }, { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, { "ADVANCED_SYSASSERT", 0 }, }; const char * iwm_desc_lookup(uint32_t num) { int i; for (i = 0; i < nitems(advanced_lookup) - 1; i++) if (advanced_lookup[i].num == (num & ~IWM_FW_SYSASSERT_CPU_MASK)) return advanced_lookup[i].name; /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ return advanced_lookup[i].name; } /* * Support for dumping the error log seemed like a good idea ... * but it's mostly hex junk and the only sensible thing is the * hw/ucode revision (which we know anyway). Since it's here, * I'll just leave it in, just in case e.g. the Intel guys want to * help us decipher some "ADVANCED_SYSASSERT" later. */ void iwm_nic_error(struct iwm_softc *sc) { struct iwm_error_event_table table; uint32_t base; printf("%s: dumping device error log\n", DEVNAME(sc)); base = sc->sc_uc.uc_error_event_table; if (base < 0x800000) { printf("%s: Invalid error log pointer 0x%08x\n", DEVNAME(sc), base); return; } if (iwm_read_mem(sc, base, &table, sizeof(table)/sizeof(uint32_t))) { printf("%s: reading errlog failed\n", DEVNAME(sc)); return; } if (!table.valid) { printf("%s: errlog not found, skipping\n", DEVNAME(sc)); return; } if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { printf("%s: Start Error Log Dump:\n", DEVNAME(sc)); printf("%s: Status: 0x%x, count: %d\n", DEVNAME(sc), sc->sc_flags, table.valid); } printf("%s: 0x%08X | %-28s\n", DEVNAME(sc), table.error_id, iwm_desc_lookup(table.error_id)); printf("%s: %08X | trm_hw_status0\n", DEVNAME(sc), table.trm_hw_status0); printf("%s: %08X | trm_hw_status1\n", DEVNAME(sc), table.trm_hw_status1); printf("%s: %08X | branchlink2\n", DEVNAME(sc), table.blink2); printf("%s: %08X | interruptlink1\n", DEVNAME(sc), table.ilink1); printf("%s: %08X | interruptlink2\n", DEVNAME(sc), table.ilink2); printf("%s: %08X | data1\n", DEVNAME(sc), table.data1); printf("%s: %08X | data2\n", DEVNAME(sc), table.data2); printf("%s: %08X | data3\n", DEVNAME(sc), table.data3); printf("%s: %08X | beacon time\n", DEVNAME(sc), table.bcon_time); printf("%s: %08X | tsf low\n", DEVNAME(sc), table.tsf_low); printf("%s: %08X | tsf hi\n", DEVNAME(sc), table.tsf_hi); printf("%s: %08X | time gp1\n", DEVNAME(sc), table.gp1); printf("%s: %08X | time gp2\n", DEVNAME(sc), table.gp2); printf("%s: %08X | uCode revision type\n", DEVNAME(sc), table.fw_rev_type); printf("%s: %08X | uCode version major\n", DEVNAME(sc), table.major); printf("%s: %08X | uCode version minor\n", DEVNAME(sc), table.minor); printf("%s: %08X | hw version\n", DEVNAME(sc), table.hw_ver); printf("%s: %08X | board version\n", DEVNAME(sc), table.brd_ver); printf("%s: %08X | hcmd\n", DEVNAME(sc), table.hcmd); printf("%s: %08X | isr0\n", DEVNAME(sc), table.isr0); printf("%s: %08X | isr1\n", DEVNAME(sc), table.isr1); printf("%s: %08X | isr2\n", DEVNAME(sc), table.isr2); printf("%s: %08X | isr3\n", DEVNAME(sc), table.isr3); printf("%s: %08X | isr4\n", DEVNAME(sc), table.isr4); printf("%s: %08X | last cmd Id\n", DEVNAME(sc), table.last_cmd_id); printf("%s: %08X | wait_event\n", DEVNAME(sc), table.wait_event); printf("%s: %08X | l2p_control\n", DEVNAME(sc), table.l2p_control); printf("%s: %08X | l2p_duration\n", DEVNAME(sc), table.l2p_duration); printf("%s: %08X | l2p_mhvalid\n", DEVNAME(sc), table.l2p_mhvalid); printf("%s: %08X | l2p_addr_match\n", DEVNAME(sc), table.l2p_addr_match); printf("%s: %08X | lmpm_pmg_sel\n", DEVNAME(sc), table.lmpm_pmg_sel); printf("%s: %08X | timestamp\n", DEVNAME(sc), table.u_timestamp); printf("%s: %08X | flow_handler\n", DEVNAME(sc), table.flow_handler); if (sc->sc_uc.uc_umac_error_event_table) iwm_nic_umac_error(sc); } void iwm_dump_driver_status(struct iwm_softc *sc) { int i; printf("driver status:\n"); for (i = 0; i < IWM_MAX_QUEUES; i++) { struct iwm_tx_ring *ring = &sc->txq[i]; printf(" tx ring %2d: qid=%-2d cur=%-3d " "queued=%-3d\n", i, ring->qid, ring->cur, ring->queued); } printf(" rx ring: cur=%d\n", sc->rxq.cur); printf(" 802.11 state %s\n", ieee80211_state_name[sc->sc_ic.ic_state]); } #define SYNC_RESP_STRUCT(_var_, _pkt_) \ do { \ bus_dmamap_sync(sc->sc_dmat, data->map, sizeof(*(_pkt_)), \ sizeof(*(_var_)), BUS_DMASYNC_POSTREAD); \ _var_ = (void *)((_pkt_)+1); \ } while (/*CONSTCOND*/0) #define SYNC_RESP_PTR(_ptr_, _len_, _pkt_) \ do { \ bus_dmamap_sync(sc->sc_dmat, data->map, sizeof(*(_pkt_)), \ sizeof(len), BUS_DMASYNC_POSTREAD); \ _ptr_ = (void *)((_pkt_)+1); \ } while (/*CONSTCOND*/0) #define ADVANCE_RXQ(sc) (sc->rxq.cur = (sc->rxq.cur + 1) % count); int iwm_rx_pkt_valid(struct iwm_rx_packet *pkt) { int qid, idx, code; qid = pkt->hdr.qid & ~0x80; idx = pkt->hdr.idx; code = IWM_WIDE_ID(pkt->hdr.flags, pkt->hdr.code); return (!(qid == 0 && idx == 0 && code == 0) && pkt->len_n_flags != htole32(IWM_FH_RSCSR_FRAME_INVALID)); } void iwm_rx_pkt(struct iwm_softc *sc, struct iwm_rx_data *data, struct mbuf_list *ml) { struct ifnet *ifp = IC2IFP(&sc->sc_ic); struct iwm_rx_packet *pkt, *nextpkt; uint32_t offset = 0, nextoff = 0, nmpdu = 0, len; struct mbuf *m0, *m; const size_t minsz = sizeof(pkt->len_n_flags) + sizeof(pkt->hdr); int qid, idx, code, handled = 1; bus_dmamap_sync(sc->sc_dmat, data->map, 0, IWM_RBUF_SIZE, BUS_DMASYNC_POSTREAD); m0 = data->m; while (m0 && offset + minsz < IWM_RBUF_SIZE) { pkt = (struct iwm_rx_packet *)(m0->m_data + offset); qid = pkt->hdr.qid; idx = pkt->hdr.idx; code = IWM_WIDE_ID(pkt->hdr.flags, pkt->hdr.code); if (!iwm_rx_pkt_valid(pkt)) break; len = sizeof(pkt->len_n_flags) + iwm_rx_packet_len(pkt); if (len < minsz || len > (IWM_RBUF_SIZE - offset)) break; if (code == IWM_REPLY_RX_MPDU_CMD && ++nmpdu == 1) { /* Take mbuf m0 off the RX ring. */ if (iwm_rx_addbuf(sc, IWM_RBUF_SIZE, sc->rxq.cur)) { ifp->if_ierrors++; break; } KASSERT(data->m != m0); } switch (code) { case IWM_REPLY_RX_PHY_CMD: iwm_rx_rx_phy_cmd(sc, pkt, data); break; case IWM_REPLY_RX_MPDU_CMD: { size_t maxlen = IWM_RBUF_SIZE - offset - minsz; nextoff = offset + roundup(len, IWM_FH_RSCSR_FRAME_ALIGN); nextpkt = (struct iwm_rx_packet *) (m0->m_data + nextoff); if (nextoff + minsz >= IWM_RBUF_SIZE || !iwm_rx_pkt_valid(nextpkt)) { /* No need to copy last frame in buffer. */ if (offset > 0) m_adj(m0, offset); if (sc->sc_mqrx_supported) iwm_rx_mpdu_mq(sc, m0, pkt->data, maxlen, ml); else iwm_rx_mpdu(sc, m0, pkt->data, maxlen, ml); m0 = NULL; /* stack owns m0 now; abort loop */ } else { /* * Create an mbuf which points to the current * packet. Always copy from offset zero to * preserve m_pkthdr. */ m = m_copym(m0, 0, M_COPYALL, M_DONTWAIT); if (m == NULL) { ifp->if_ierrors++; m_freem(m0); m0 = NULL; break; } m_adj(m, offset); if (sc->sc_mqrx_supported) iwm_rx_mpdu_mq(sc, m, pkt->data, maxlen, ml); else iwm_rx_mpdu(sc, m, pkt->data, maxlen, ml); } break; } case IWM_TX_CMD: iwm_rx_tx_cmd(sc, pkt, data); break; case IWM_BA_NOTIF: iwm_rx_compressed_ba(sc, pkt); break; case IWM_MISSED_BEACONS_NOTIFICATION: iwm_rx_bmiss(sc, pkt, data); break; case IWM_MFUART_LOAD_NOTIFICATION: break; case IWM_ALIVE: { struct iwm_alive_resp_v1 *resp1; struct iwm_alive_resp_v2 *resp2; struct iwm_alive_resp_v3 *resp3; if (iwm_rx_packet_payload_len(pkt) == sizeof(*resp1)) { SYNC_RESP_STRUCT(resp1, pkt); sc->sc_uc.uc_error_event_table = le32toh(resp1->error_event_table_ptr); sc->sc_uc.uc_log_event_table = le32toh(resp1->log_event_table_ptr); sc->sched_base = le32toh(resp1->scd_base_ptr); if (resp1->status == IWM_ALIVE_STATUS_OK) sc->sc_uc.uc_ok = 1; else sc->sc_uc.uc_ok = 0; } if (iwm_rx_packet_payload_len(pkt) == sizeof(*resp2)) { SYNC_RESP_STRUCT(resp2, pkt); sc->sc_uc.uc_error_event_table = le32toh(resp2->error_event_table_ptr); sc->sc_uc.uc_log_event_table = le32toh(resp2->log_event_table_ptr); sc->sched_base = le32toh(resp2->scd_base_ptr); sc->sc_uc.uc_umac_error_event_table = le32toh(resp2->error_info_addr); if (resp2->status == IWM_ALIVE_STATUS_OK) sc->sc_uc.uc_ok = 1; else sc->sc_uc.uc_ok = 0; } if (iwm_rx_packet_payload_len(pkt) == sizeof(*resp3)) { SYNC_RESP_STRUCT(resp3, pkt); sc->sc_uc.uc_error_event_table = le32toh(resp3->error_event_table_ptr); sc->sc_uc.uc_log_event_table = le32toh(resp3->log_event_table_ptr); sc->sched_base = le32toh(resp3->scd_base_ptr); sc->sc_uc.uc_umac_error_event_table = le32toh(resp3->error_info_addr); if (resp3->status == IWM_ALIVE_STATUS_OK) sc->sc_uc.uc_ok = 1; else sc->sc_uc.uc_ok = 0; } sc->sc_uc.uc_intr = 1; wakeup(&sc->sc_uc); break; } case IWM_CALIB_RES_NOTIF_PHY_DB: { struct iwm_calib_res_notif_phy_db *phy_db_notif; SYNC_RESP_STRUCT(phy_db_notif, pkt); iwm_phy_db_set_section(sc, phy_db_notif); sc->sc_init_complete |= IWM_CALIB_COMPLETE; wakeup(&sc->sc_init_complete); break; } case IWM_STATISTICS_NOTIFICATION: { struct iwm_notif_statistics *stats; SYNC_RESP_STRUCT(stats, pkt); memcpy(&sc->sc_stats, stats, sizeof(sc->sc_stats)); sc->sc_noise = iwm_get_noise(&stats->rx.general); break; } case IWM_MCC_CHUB_UPDATE_CMD: { struct iwm_mcc_chub_notif *notif; SYNC_RESP_STRUCT(notif, pkt); iwm_mcc_update(sc, notif); break; } case IWM_DTS_MEASUREMENT_NOTIFICATION: case IWM_WIDE_ID(IWM_PHY_OPS_GROUP, IWM_DTS_MEASUREMENT_NOTIF_WIDE): case IWM_WIDE_ID(IWM_PHY_OPS_GROUP, IWM_TEMP_REPORTING_THRESHOLDS_CMD): break; case IWM_WIDE_ID(IWM_PHY_OPS_GROUP, IWM_CT_KILL_NOTIFICATION): { struct iwm_ct_kill_notif *notif; SYNC_RESP_STRUCT(notif, pkt); printf("%s: device at critical temperature (%u degC), " "stopping device\n", DEVNAME(sc), le16toh(notif->temperature)); sc->sc_flags |= IWM_FLAG_HW_ERR; task_add(systq, &sc->init_task); break; } case IWM_ADD_STA_KEY: case IWM_PHY_CONFIGURATION_CMD: case IWM_TX_ANT_CONFIGURATION_CMD: case IWM_ADD_STA: case IWM_MAC_CONTEXT_CMD: case IWM_REPLY_SF_CFG_CMD: case IWM_POWER_TABLE_CMD: case IWM_LTR_CONFIG: case IWM_PHY_CONTEXT_CMD: case IWM_BINDING_CONTEXT_CMD: case IWM_WIDE_ID(IWM_LONG_GROUP, IWM_SCAN_CFG_CMD): case IWM_WIDE_ID(IWM_LONG_GROUP, IWM_SCAN_REQ_UMAC): case IWM_WIDE_ID(IWM_LONG_GROUP, IWM_SCAN_ABORT_UMAC): case IWM_SCAN_OFFLOAD_REQUEST_CMD: case IWM_SCAN_OFFLOAD_ABORT_CMD: case IWM_REPLY_BEACON_FILTERING_CMD: case IWM_MAC_PM_POWER_TABLE: case IWM_TIME_QUOTA_CMD: case IWM_REMOVE_STA: case IWM_TXPATH_FLUSH: case IWM_LQ_CMD: case IWM_WIDE_ID(IWM_LONG_GROUP, IWM_FW_PAGING_BLOCK_CMD): case IWM_BT_CONFIG: case IWM_REPLY_THERMAL_MNG_BACKOFF: case IWM_NVM_ACCESS_CMD: case IWM_MCC_UPDATE_CMD: case IWM_TIME_EVENT_CMD: { size_t pkt_len; if (sc->sc_cmd_resp_pkt[idx] == NULL) break; bus_dmamap_sync(sc->sc_dmat, data->map, 0, sizeof(*pkt), BUS_DMASYNC_POSTREAD); pkt_len = sizeof(pkt->len_n_flags) + iwm_rx_packet_len(pkt); if ((pkt->hdr.flags & IWM_CMD_FAILED_MSK) || pkt_len < sizeof(*pkt) || pkt_len > sc->sc_cmd_resp_len[idx]) { free(sc->sc_cmd_resp_pkt[idx], M_DEVBUF, sc->sc_cmd_resp_len[idx]); sc->sc_cmd_resp_pkt[idx] = NULL; break; } bus_dmamap_sync(sc->sc_dmat, data->map, sizeof(*pkt), pkt_len - sizeof(*pkt), BUS_DMASYNC_POSTREAD); memcpy(sc->sc_cmd_resp_pkt[idx], pkt, pkt_len); break; } /* ignore */ case IWM_PHY_DB_CMD: break; case IWM_INIT_COMPLETE_NOTIF: sc->sc_init_complete |= IWM_INIT_COMPLETE; wakeup(&sc->sc_init_complete); break; case IWM_SCAN_OFFLOAD_COMPLETE: { struct iwm_periodic_scan_complete *notif; SYNC_RESP_STRUCT(notif, pkt); break; } case IWM_SCAN_ITERATION_COMPLETE: { struct iwm_lmac_scan_complete_notif *notif; SYNC_RESP_STRUCT(notif, pkt); iwm_endscan(sc); break; } case IWM_SCAN_COMPLETE_UMAC: { struct iwm_umac_scan_complete *notif; SYNC_RESP_STRUCT(notif, pkt); iwm_endscan(sc); break; } case IWM_SCAN_ITERATION_COMPLETE_UMAC: { struct iwm_umac_scan_iter_complete_notif *notif; SYNC_RESP_STRUCT(notif, pkt); iwm_endscan(sc); break; } case IWM_REPLY_ERROR: { struct iwm_error_resp *resp; SYNC_RESP_STRUCT(resp, pkt); printf("%s: firmware error 0x%x, cmd 0x%x\n", DEVNAME(sc), le32toh(resp->error_type), resp->cmd_id); break; } case IWM_TIME_EVENT_NOTIFICATION: { struct iwm_time_event_notif *notif; uint32_t action; SYNC_RESP_STRUCT(notif, pkt); if (sc->sc_time_event_uid != le32toh(notif->unique_id)) break; action = le32toh(notif->action); if (action & IWM_TE_V2_NOTIF_HOST_EVENT_END) sc->sc_flags &= ~IWM_FLAG_TE_ACTIVE; break; } case IWM_WIDE_ID(IWM_SYSTEM_GROUP, IWM_FSEQ_VER_MISMATCH_NOTIFICATION): break; /* * Firmware versions 21 and 22 generate some DEBUG_LOG_MSG * messages. Just ignore them for now. */ case IWM_DEBUG_LOG_MSG: break; case IWM_MCAST_FILTER_CMD: break; case IWM_SCD_QUEUE_CFG: { struct iwm_scd_txq_cfg_rsp *rsp; SYNC_RESP_STRUCT(rsp, pkt); break; } case IWM_WIDE_ID(IWM_DATA_PATH_GROUP, IWM_DQA_ENABLE_CMD): break; case IWM_WIDE_ID(IWM_SYSTEM_GROUP, IWM_SOC_CONFIGURATION_CMD): break; default: handled = 0; printf("%s: unhandled firmware response 0x%x/0x%x " "rx ring %d[%d]\n", DEVNAME(sc), code, pkt->len_n_flags, (qid & ~0x80), idx); break; } /* * uCode sets bit 0x80 when it originates the notification, * i.e. when the notification is not a direct response to a * command sent by the driver. * For example, uCode issues IWM_REPLY_RX when it sends a * received frame to the driver. */ if (handled && !(qid & (1 << 7))) { iwm_cmd_done(sc, qid, idx, code); } offset += roundup(len, IWM_FH_RSCSR_FRAME_ALIGN); } if (m0 && m0 != data->m) m_freem(m0); } void iwm_notif_intr(struct iwm_softc *sc) { struct mbuf_list ml = MBUF_LIST_INITIALIZER(); uint32_t wreg; uint16_t hw; int count; bus_dmamap_sync(sc->sc_dmat, sc->rxq.stat_dma.map, 0, sc->rxq.stat_dma.size, BUS_DMASYNC_POSTREAD); if (sc->sc_mqrx_supported) { count = IWM_RX_MQ_RING_COUNT; wreg = IWM_RFH_Q0_FRBDCB_WIDX_TRG; } else { count = IWM_RX_RING_COUNT; wreg = IWM_FH_RSCSR_CHNL0_WPTR; } hw = le16toh(sc->rxq.stat->closed_rb_num) & 0xfff; hw &= (count - 1); while (sc->rxq.cur != hw) { struct iwm_rx_data *data = &sc->rxq.data[sc->rxq.cur]; iwm_rx_pkt(sc, data, &ml); ADVANCE_RXQ(sc); } if_input(&sc->sc_ic.ic_if, &ml); /* * Tell the firmware what we have processed. * Seems like the hardware gets upset unless we align the write by 8?? */ hw = (hw == 0) ? count - 1 : hw - 1; IWM_WRITE(sc, wreg, hw & ~7); } int iwm_intr(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); int handled = 0; int rv = 0; uint32_t r1, r2; IWM_WRITE(sc, IWM_CSR_INT_MASK, 0); if (sc->sc_flags & IWM_FLAG_USE_ICT) { uint32_t *ict = sc->ict_dma.vaddr; int tmp; tmp = htole32(ict[sc->ict_cur]); if (!tmp) goto out_ena; /* * ok, there was something. keep plowing until we have all. */ r1 = r2 = 0; while (tmp) { r1 |= tmp; ict[sc->ict_cur] = 0; sc->ict_cur = (sc->ict_cur+1) % IWM_ICT_COUNT; tmp = htole32(ict[sc->ict_cur]); } /* this is where the fun begins. don't ask */ if (r1 == 0xffffffff) r1 = 0; /* * Workaround for hardware bug where bits are falsely cleared * when using interrupt coalescing. Bit 15 should be set if * bits 18 and 19 are set. */ if (r1 & 0xc0000) r1 |= 0x8000; r1 = (0xff & r1) | ((0xff00 & r1) << 16); } else { r1 = IWM_READ(sc, IWM_CSR_INT); r2 = IWM_READ(sc, IWM_CSR_FH_INT_STATUS); } if (r1 == 0 && r2 == 0) { goto out_ena; } if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) goto out; IWM_WRITE(sc, IWM_CSR_INT, r1 | ~sc->sc_intmask); /* ignored */ handled |= (r1 & (IWM_CSR_INT_BIT_ALIVE /*| IWM_CSR_INT_BIT_SCD*/)); if (r1 & IWM_CSR_INT_BIT_RF_KILL) { handled |= IWM_CSR_INT_BIT_RF_KILL; iwm_check_rfkill(sc); task_add(systq, &sc->init_task); rv = 1; goto out_ena; } if (r1 & IWM_CSR_INT_BIT_SW_ERR) { if (ifp->if_flags & IFF_DEBUG) { iwm_nic_error(sc); iwm_dump_driver_status(sc); } printf("%s: fatal firmware error\n", DEVNAME(sc)); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) task_add(systq, &sc->init_task); rv = 1; goto out; } if (r1 & IWM_CSR_INT_BIT_HW_ERR) { handled |= IWM_CSR_INT_BIT_HW_ERR; printf("%s: hardware error, stopping device \n", DEVNAME(sc)); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) { sc->sc_flags |= IWM_FLAG_HW_ERR; task_add(systq, &sc->init_task); } rv = 1; goto out; } /* firmware chunk loaded */ if (r1 & IWM_CSR_INT_BIT_FH_TX) { IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, IWM_CSR_FH_INT_TX_MASK); handled |= IWM_CSR_INT_BIT_FH_TX; sc->sc_fw_chunk_done = 1; wakeup(&sc->sc_fw); } if (r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX | IWM_CSR_INT_BIT_RX_PERIODIC)) { if (r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX)) { handled |= (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX); IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, IWM_CSR_FH_INT_RX_MASK); } if (r1 & IWM_CSR_INT_BIT_RX_PERIODIC) { handled |= IWM_CSR_INT_BIT_RX_PERIODIC; IWM_WRITE(sc, IWM_CSR_INT, IWM_CSR_INT_BIT_RX_PERIODIC); } /* Disable periodic interrupt; we use it as just a one-shot. */ IWM_WRITE_1(sc, IWM_CSR_INT_PERIODIC_REG, IWM_CSR_INT_PERIODIC_DIS); /* * Enable periodic interrupt in 8 msec only if we received * real RX interrupt (instead of just periodic int), to catch * any dangling Rx interrupt. If it was just the periodic * interrupt, there was no dangling Rx activity, and no need * to extend the periodic interrupt; one-shot is enough. */ if (r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX)) IWM_WRITE_1(sc, IWM_CSR_INT_PERIODIC_REG, IWM_CSR_INT_PERIODIC_ENA); iwm_notif_intr(sc); } rv = 1; out_ena: iwm_restore_interrupts(sc); out: return rv; } int iwm_intr_msix(void *arg) { struct iwm_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); uint32_t inta_fh, inta_hw; int vector = 0; inta_fh = IWM_READ(sc, IWM_CSR_MSIX_FH_INT_CAUSES_AD); inta_hw = IWM_READ(sc, IWM_CSR_MSIX_HW_INT_CAUSES_AD); IWM_WRITE(sc, IWM_CSR_MSIX_FH_INT_CAUSES_AD, inta_fh); IWM_WRITE(sc, IWM_CSR_MSIX_HW_INT_CAUSES_AD, inta_hw); inta_fh &= sc->sc_fh_mask; inta_hw &= sc->sc_hw_mask; if (inta_fh & IWM_MSIX_FH_INT_CAUSES_Q0 || inta_fh & IWM_MSIX_FH_INT_CAUSES_Q1) { iwm_notif_intr(sc); } /* firmware chunk loaded */ if (inta_fh & IWM_MSIX_FH_INT_CAUSES_D2S_CH0_NUM) { sc->sc_fw_chunk_done = 1; wakeup(&sc->sc_fw); } if ((inta_fh & IWM_MSIX_FH_INT_CAUSES_FH_ERR) || (inta_hw & IWM_MSIX_HW_INT_CAUSES_REG_SW_ERR) || (inta_hw & IWM_MSIX_HW_INT_CAUSES_REG_SW_ERR_V2)) { if (ifp->if_flags & IFF_DEBUG) { iwm_nic_error(sc); iwm_dump_driver_status(sc); } printf("%s: fatal firmware error\n", DEVNAME(sc)); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) task_add(systq, &sc->init_task); return 1; } if (inta_hw & IWM_MSIX_HW_INT_CAUSES_REG_RF_KILL) { iwm_check_rfkill(sc); task_add(systq, &sc->init_task); } if (inta_hw & IWM_MSIX_HW_INT_CAUSES_REG_HW_ERR) { printf("%s: hardware error, stopping device \n", DEVNAME(sc)); if ((sc->sc_flags & IWM_FLAG_SHUTDOWN) == 0) { sc->sc_flags |= IWM_FLAG_HW_ERR; task_add(systq, &sc->init_task); } return 1; } /* * Before sending the interrupt the HW disables it to prevent * a nested interrupt. This is done by writing 1 to the corresponding * bit in the mask register. After handling the interrupt, it should be * re-enabled by clearing this bit. This register is defined as * write 1 clear (W1C) register, meaning that it's being clear * by writing 1 to the bit. */ IWM_WRITE(sc, IWM_CSR_MSIX_AUTOMASK_ST_AD, 1 << vector); return 1; } typedef void *iwm_match_t; static const struct pci_matchid iwm_devices[] = { { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_3160_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_3160_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_3165_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_3165_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_3168_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_7260_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_7260_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_7265_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_7265_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_8260_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_8260_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_8265_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_9260_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_9560_1 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_9560_2 }, { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_WL_9560_3 }, }; int iwm_match(struct device *parent, iwm_match_t match __unused, void *aux) { return pci_matchbyid((struct pci_attach_args *)aux, iwm_devices, nitems(iwm_devices)); } int iwm_preinit(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = IC2IFP(ic); int err; static int attached; err = iwm_prepare_card_hw(sc); if (err) { printf("%s: could not initialize hardware\n", DEVNAME(sc)); return err; } if (attached) { /* Update MAC in case the upper layers changed it. */ IEEE80211_ADDR_COPY(sc->sc_ic.ic_myaddr, ((struct arpcom *)ifp)->ac_enaddr); return 0; } err = iwm_start_hw(sc); if (err) { printf("%s: could not initialize hardware\n", DEVNAME(sc)); return err; } err = iwm_run_init_mvm_ucode(sc, 1); iwm_stop_device(sc); if (err) return err; /* Print version info and MAC address on first successful fw load. */ attached = 1; printf("%s: hw rev 0x%x, fw ver %s, address %s\n", DEVNAME(sc), sc->sc_hw_rev & IWM_CSR_HW_REV_TYPE_MSK, sc->sc_fwver, ether_sprintf(sc->sc_nvm.hw_addr)); if (sc->sc_nvm.sku_cap_11n_enable) iwm_setup_ht_rates(sc); /* not all hardware can do 5GHz band */ if (!sc->sc_nvm.sku_cap_band_52GHz_enable) memset(&ic->ic_sup_rates[IEEE80211_MODE_11A], 0, sizeof(ic->ic_sup_rates[IEEE80211_MODE_11A])); /* Configure channel information obtained from firmware. */ ieee80211_channel_init(ifp); /* Configure MAC address. */ err = if_setlladdr(ifp, ic->ic_myaddr); if (err) printf("%s: could not set MAC address (error %d)\n", DEVNAME(sc), err); ieee80211_media_init(ifp, iwm_media_change, ieee80211_media_status); return 0; } void iwm_attach_hook(struct device *self) { struct iwm_softc *sc = (void *)self; KASSERT(!cold); iwm_preinit(sc); } void iwm_attach(struct device *parent, struct device *self, void *aux) { struct iwm_softc *sc = (void *)self; struct pci_attach_args *pa = aux; pci_intr_handle_t ih; pcireg_t reg, memtype; struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; const char *intrstr; int err; int txq_i, i, j; sc->sc_pct = pa->pa_pc; sc->sc_pcitag = pa->pa_tag; sc->sc_dmat = pa->pa_dmat; rw_init(&sc->ioctl_rwl, "iwmioctl"); err = pci_get_capability(sc->sc_pct, sc->sc_pcitag, PCI_CAP_PCIEXPRESS, &sc->sc_cap_off, NULL); if (err == 0) { printf("%s: PCIe capability structure not found!\n", DEVNAME(sc)); return; } /* * We disable the RETRY_TIMEOUT register (0x41) to keep * PCI Tx retries from interfering with C3 CPU state. */ reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, reg & ~0xff00); memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START); err = pci_mapreg_map(pa, PCI_MAPREG_START, memtype, 0, &sc->sc_st, &sc->sc_sh, NULL, &sc->sc_sz, 0); if (err) { printf("%s: can't map mem space\n", DEVNAME(sc)); return; } if (pci_intr_map_msix(pa, 0, &ih) == 0) { sc->sc_msix = 1; } else if (pci_intr_map_msi(pa, &ih)) { if (pci_intr_map(pa, &ih)) { printf("%s: can't map interrupt\n", DEVNAME(sc)); return; } /* Hardware bug workaround. */ reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); if (reg & PCI_COMMAND_INTERRUPT_DISABLE) reg &= ~PCI_COMMAND_INTERRUPT_DISABLE; pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, reg); } intrstr = pci_intr_string(sc->sc_pct, ih); if (sc->sc_msix) sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwm_intr_msix, sc, DEVNAME(sc)); else sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwm_intr, sc, DEVNAME(sc)); if (sc->sc_ih == NULL) { printf("\n"); printf("%s: can't establish interrupt", DEVNAME(sc)); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf(", %s\n", intrstr); sc->sc_hw_rev = IWM_READ(sc, IWM_CSR_HW_REV); switch (PCI_PRODUCT(pa->pa_id)) { case PCI_PRODUCT_INTEL_WL_3160_1: case PCI_PRODUCT_INTEL_WL_3160_2: sc->sc_fwname = "iwm-3160-17"; sc->host_interrupt_operation_mode = 1; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ; sc->sc_nvm_max_section_size = 16384; sc->nvm_type = IWM_NVM; break; case PCI_PRODUCT_INTEL_WL_3165_1: case PCI_PRODUCT_INTEL_WL_3165_2: sc->sc_fwname = "iwm-7265D-29"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ; sc->sc_nvm_max_section_size = 16384; sc->nvm_type = IWM_NVM; break; case PCI_PRODUCT_INTEL_WL_3168_1: sc->sc_fwname = "iwm-3168-29"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ; sc->sc_nvm_max_section_size = 16384; sc->nvm_type = IWM_NVM_SDP; break; case PCI_PRODUCT_INTEL_WL_7260_1: case PCI_PRODUCT_INTEL_WL_7260_2: sc->sc_fwname = "iwm-7260-17"; sc->host_interrupt_operation_mode = 1; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ; sc->sc_nvm_max_section_size = 16384; sc->nvm_type = IWM_NVM; break; case PCI_PRODUCT_INTEL_WL_7265_1: case PCI_PRODUCT_INTEL_WL_7265_2: sc->sc_fwname = "iwm-7265-17"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ; sc->sc_nvm_max_section_size = 16384; sc->nvm_type = IWM_NVM; break; case PCI_PRODUCT_INTEL_WL_8260_1: case PCI_PRODUCT_INTEL_WL_8260_2: sc->sc_fwname = "iwm-8000C-36"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_8000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ_8000; sc->sc_nvm_max_section_size = 32768; sc->nvm_type = IWM_NVM_EXT; break; case PCI_PRODUCT_INTEL_WL_8265_1: sc->sc_fwname = "iwm-8265-36"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_8000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ_8000; sc->sc_nvm_max_section_size = 32768; sc->nvm_type = IWM_NVM_EXT; break; case PCI_PRODUCT_INTEL_WL_9260_1: sc->sc_fwname = "iwm-9260-46"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_9000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ_8000; sc->sc_nvm_max_section_size = 32768; sc->sc_mqrx_supported = 1; break; case PCI_PRODUCT_INTEL_WL_9560_1: case PCI_PRODUCT_INTEL_WL_9560_2: case PCI_PRODUCT_INTEL_WL_9560_3: sc->sc_fwname = "iwm-9000-46"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_9000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ_8000; sc->sc_nvm_max_section_size = 32768; sc->sc_mqrx_supported = 1; sc->sc_integrated = 1; if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_WL_9560_3) { sc->sc_xtal_latency = 670; sc->sc_extra_phy_config = IWM_FW_PHY_CFG_SHARED_CLK; } else sc->sc_xtal_latency = 650; break; default: printf("%s: unknown adapter type\n", DEVNAME(sc)); return; } /* * In the 8000 HW family the format of the 4 bytes of CSR_HW_REV have * changed, and now the revision step also includes bit 0-1 (no more * "dash" value). To keep hw_rev backwards compatible - we'll store it * in the old format. */ if (sc->sc_device_family >= IWM_DEVICE_FAMILY_8000) { uint32_t hw_step; sc->sc_hw_rev = (sc->sc_hw_rev & 0xfff0) | (IWM_CSR_HW_REV_STEP(sc->sc_hw_rev << 2) << 2); if (iwm_prepare_card_hw(sc) != 0) { printf("%s: could not initialize hardware\n", DEVNAME(sc)); return; } /* * In order to recognize C step the driver should read the * chip version id located at the AUX bus MISC address. */ IWM_SETBITS(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_INIT_DONE); DELAY(2); err = iwm_poll_bit(sc, IWM_CSR_GP_CNTRL, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, IWM_CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); if (!err) { printf("%s: Failed to wake up the nic\n", DEVNAME(sc)); return; } if (iwm_nic_lock(sc)) { hw_step = iwm_read_prph(sc, IWM_WFPM_CTRL_REG); hw_step |= IWM_ENABLE_WFPM; iwm_write_prph(sc, IWM_WFPM_CTRL_REG, hw_step); hw_step = iwm_read_prph(sc, IWM_AUX_MISC_REG); hw_step = (hw_step >> IWM_HW_STEP_LOCATION_BITS) & 0xF; if (hw_step == 0x3) sc->sc_hw_rev = (sc->sc_hw_rev & 0xFFFFFFF3) | (IWM_SILICON_C_STEP << 2); iwm_nic_unlock(sc); } else { printf("%s: Failed to lock the nic\n", DEVNAME(sc)); return; } } /* * Allocate DMA memory for firmware transfers. * Must be aligned on a 16-byte boundary. */ err = iwm_dma_contig_alloc(sc->sc_dmat, &sc->fw_dma, sc->sc_fwdmasegsz, 16); if (err) { printf("%s: could not allocate memory for firmware\n", DEVNAME(sc)); return; } /* Allocate "Keep Warm" page, used internally by the card. */ err = iwm_dma_contig_alloc(sc->sc_dmat, &sc->kw_dma, 4096, 4096); if (err) { printf("%s: could not allocate keep warm page\n", DEVNAME(sc)); goto fail1; } /* Allocate interrupt cause table (ICT).*/ err = iwm_dma_contig_alloc(sc->sc_dmat, &sc->ict_dma, IWM_ICT_SIZE, 1<sc_dmat, &sc->sched_dma, nitems(sc->txq) * sizeof(struct iwm_agn_scd_bc_tbl), 1024); if (err) { printf("%s: could not allocate TX scheduler rings\n", DEVNAME(sc)); goto fail3; } for (txq_i = 0; txq_i < nitems(sc->txq); txq_i++) { err = iwm_alloc_tx_ring(sc, &sc->txq[txq_i], txq_i); if (err) { printf("%s: could not allocate TX ring %d\n", DEVNAME(sc), txq_i); goto fail4; } } err = iwm_alloc_rx_ring(sc, &sc->rxq); if (err) { printf("%s: could not allocate RX ring\n", DEVNAME(sc)); goto fail4; } sc->sc_nswq = taskq_create("iwmns", 1, IPL_NET, 0); if (sc->sc_nswq == NULL) goto fail4; /* Clear pending interrupts. */ IWM_WRITE(sc, IWM_CSR_INT, 0xffffffff); ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ ic->ic_state = IEEE80211_S_INIT; /* Set device capabilities. */ ic->ic_caps = IEEE80211_C_QOS | IEEE80211_C_TX_AMPDU | /* A-MPDU */ IEEE80211_C_WEP | /* WEP */ IEEE80211_C_RSN | /* WPA/RSN */ IEEE80211_C_SCANALL | /* device scans all channels at once */ IEEE80211_C_SCANALLBAND | /* device scans all bands at once */ IEEE80211_C_MONITOR | /* monitor mode supported */ IEEE80211_C_SHSLOT | /* short slot time supported */ IEEE80211_C_SHPREAMBLE; /* short preamble supported */ ic->ic_htcaps = IEEE80211_HTCAP_SGI20 | IEEE80211_HTCAP_SGI40; ic->ic_htcaps |= IEEE80211_HTCAP_CBW20_40; ic->ic_htcaps |= (IEEE80211_HTCAP_SMPS_DIS << IEEE80211_HTCAP_SMPS_SHIFT); ic->ic_htxcaps = 0; ic->ic_txbfcaps = 0; ic->ic_aselcaps = 0; ic->ic_ampdu_params = (IEEE80211_AMPDU_PARAM_SS_4 | 0x3 /* 64k */); ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; for (i = 0; i < nitems(sc->sc_phyctxt); i++) { sc->sc_phyctxt[i].id = i; sc->sc_phyctxt[i].sco = IEEE80211_HTOP0_SCO_SCN; } sc->sc_amrr.amrr_min_success_threshold = 1; sc->sc_amrr.amrr_max_success_threshold = 15; /* IBSS channel undefined for now. */ ic->ic_ibss_chan = &ic->ic_channels[1]; ic->ic_max_rssi = IWM_MAX_DBM - IWM_MIN_DBM; ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = iwm_ioctl; ifp->if_start = iwm_start; ifp->if_watchdog = iwm_watchdog; memcpy(ifp->if_xname, DEVNAME(sc), IFNAMSIZ); if_attach(ifp); ieee80211_ifattach(ifp); ieee80211_media_init(ifp, iwm_media_change, ieee80211_media_status); #if NBPFILTER > 0 iwm_radiotap_attach(sc); #endif timeout_set(&sc->sc_calib_to, iwm_calib_timeout, sc); timeout_set(&sc->sc_led_blink_to, iwm_led_blink_timeout, sc); for (i = 0; i < nitems(sc->sc_rxba_data); i++) { struct iwm_rxba_data *rxba = &sc->sc_rxba_data[i]; rxba->baid = IWM_RX_REORDER_DATA_INVALID_BAID; rxba->sc = sc; timeout_set(&rxba->session_timer, iwm_rx_ba_session_expired, rxba); timeout_set(&rxba->reorder_buf.reorder_timer, iwm_reorder_timer_expired, &rxba->reorder_buf); for (j = 0; j < nitems(rxba->entries); j++) ml_init(&rxba->entries[j].frames); } task_set(&sc->init_task, iwm_init_task, sc); task_set(&sc->newstate_task, iwm_newstate_task, sc); task_set(&sc->ba_task, iwm_ba_task, sc); task_set(&sc->mac_ctxt_task, iwm_mac_ctxt_task, sc); task_set(&sc->phy_ctxt_task, iwm_phy_ctxt_task, sc); task_set(&sc->bgscan_done_task, iwm_bgscan_done_task, sc); ic->ic_node_alloc = iwm_node_alloc; ic->ic_bgscan_start = iwm_bgscan; ic->ic_bgscan_done = iwm_bgscan_done; ic->ic_set_key = iwm_set_key; ic->ic_delete_key = iwm_delete_key; /* Override 802.11 state transition machine. */ sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = iwm_newstate; ic->ic_updateprot = iwm_updateprot; ic->ic_updateslot = iwm_updateslot; ic->ic_updateedca = iwm_updateedca; ic->ic_updatedtim = iwm_updatedtim; ic->ic_ampdu_rx_start = iwm_ampdu_rx_start; ic->ic_ampdu_rx_stop = iwm_ampdu_rx_stop; ic->ic_ampdu_tx_start = iwm_ampdu_tx_start; ic->ic_ampdu_tx_stop = iwm_ampdu_tx_stop; /* * We cannot read the MAC address without loading the * firmware from disk. Postpone until mountroot is done. */ config_mountroot(self, iwm_attach_hook); return; fail4: while (--txq_i >= 0) iwm_free_tx_ring(sc, &sc->txq[txq_i]); iwm_free_rx_ring(sc, &sc->rxq); iwm_dma_contig_free(&sc->sched_dma); fail3: if (sc->ict_dma.vaddr != NULL) iwm_dma_contig_free(&sc->ict_dma); fail2: iwm_dma_contig_free(&sc->kw_dma); fail1: iwm_dma_contig_free(&sc->fw_dma); return; } #if NBPFILTER > 0 void iwm_radiotap_attach(struct iwm_softc *sc) { bpfattach(&sc->sc_drvbpf, &sc->sc_ic.ic_if, DLT_IEEE802_11_RADIO, sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN); sc->sc_rxtap_len = sizeof sc->sc_rxtapu; sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); sc->sc_rxtap.wr_ihdr.it_present = htole32(IWM_RX_RADIOTAP_PRESENT); sc->sc_txtap_len = sizeof sc->sc_txtapu; sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); sc->sc_txtap.wt_ihdr.it_present = htole32(IWM_TX_RADIOTAP_PRESENT); } #endif void iwm_init_task(void *arg1) { struct iwm_softc *sc = arg1; struct ifnet *ifp = &sc->sc_ic.ic_if; int s = splnet(); int generation = sc->sc_generation; int fatal = (sc->sc_flags & (IWM_FLAG_HW_ERR | IWM_FLAG_RFKILL)); rw_enter_write(&sc->ioctl_rwl); if (generation != sc->sc_generation) { rw_exit(&sc->ioctl_rwl); splx(s); return; } if (ifp->if_flags & IFF_RUNNING) iwm_stop(ifp); else sc->sc_flags &= ~IWM_FLAG_HW_ERR; if (!fatal && (ifp->if_flags & (IFF_UP | IFF_RUNNING)) == IFF_UP) iwm_init(ifp); rw_exit(&sc->ioctl_rwl); splx(s); } void iwm_resume(struct iwm_softc *sc) { pcireg_t reg; /* * We disable the RETRY_TIMEOUT register (0x41) to keep * PCI Tx retries from interfering with C3 CPU state. */ reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, reg & ~0xff00); if (!sc->sc_msix) { /* Hardware bug workaround. */ reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); if (reg & PCI_COMMAND_INTERRUPT_DISABLE) reg &= ~PCI_COMMAND_INTERRUPT_DISABLE; pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, reg); } iwm_disable_interrupts(sc); } int iwm_wakeup(struct iwm_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &sc->sc_ic.ic_if; int err; err = iwm_start_hw(sc); if (err) return err; err = iwm_init_hw(sc); if (err) return err; refcnt_init(&sc->task_refs); ifq_clr_oactive(&ifp->if_snd); ifp->if_flags |= IFF_RUNNING; if (ic->ic_opmode == IEEE80211_M_MONITOR) ieee80211_new_state(ic, IEEE80211_S_RUN, -1); else ieee80211_begin_scan(ifp); return 0; } int iwm_activate(struct device *self, int act) { struct iwm_softc *sc = (struct iwm_softc *)self; struct ifnet *ifp = &sc->sc_ic.ic_if; int err = 0; switch (act) { case DVACT_QUIESCE: if (ifp->if_flags & IFF_RUNNING) { rw_enter_write(&sc->ioctl_rwl); iwm_stop(ifp); rw_exit(&sc->ioctl_rwl); } break; case DVACT_RESUME: iwm_resume(sc); break; case DVACT_WAKEUP: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == IFF_UP) { err = iwm_wakeup(sc); if (err) printf("%s: could not initialize hardware\n", DEVNAME(sc)); } break; } return 0; } struct cfdriver iwm_cd = { NULL, "iwm", DV_IFNET }; struct cfattach iwm_ca = { sizeof(struct iwm_softc), iwm_match, iwm_attach, NULL, iwm_activate };