e7065dd1e8
This was inherited from iwlwifi, which drives devices supported by both iwn(4) and iwm(4) in FreeBSD. In iwm(4) _mvm is meaningless, so remove it. OpenBSD made the same change a long time ago. No functional change intended. MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
382 lines
10 KiB
C
382 lines
10 KiB
C
/*-
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* Based on BSD-licensed source modules in the Linux iwlwifi driver,
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* which were used as the reference documentation for this implementation.
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*
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* Driver version we are currently based off of is
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* Linux 4.7.3 (tag id d7f6728f57e3ecbb7ef34eb7d9f564d514775d75)
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*
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***********************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* Copyright(c) 2016 Intel Deutschland GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* Copyright(c) 2016 Intel Deutschland GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_wlan.h"
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#include "opt_iwm.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/endian.h>
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#include <sys/firmware.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/linker.h>
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <machine/resource.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/iwm/if_iwmreg.h>
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#include <dev/iwm/if_iwmvar.h>
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#include <dev/iwm/if_iwm_config.h>
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#include <dev/iwm/if_iwm_debug.h>
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#include <dev/iwm/if_iwm_constants.h>
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#include <dev/iwm/if_iwm_util.h>
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#include <dev/iwm/if_iwm_mac_ctxt.h>
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#include <dev/iwm/if_iwm_sta.h>
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/*
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* New version of ADD_STA_sta command added new fields at the end of the
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* structure, so sending the size of the relevant API's structure is enough to
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* support both API versions.
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*/
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static inline int
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iwm_add_sta_cmd_size(struct iwm_softc *sc)
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{
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return sc->cfg->mqrx_supported ? sizeof(struct iwm_add_sta_cmd) :
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sizeof(struct iwm_add_sta_cmd_v7);
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}
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/* send station add/update command to firmware */
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int
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iwm_sta_send_to_fw(struct iwm_softc *sc, struct iwm_node *in,
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boolean_t update)
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{
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struct iwm_vap *ivp = IWM_VAP(in->in_ni.ni_vap);
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struct iwm_add_sta_cmd add_sta_cmd = {
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.sta_id = IWM_STATION_ID,
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.mac_id_n_color =
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htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, ivp->color)),
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.add_modify = update ? 1 : 0,
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.station_flags_msk = htole32(IWM_STA_FLG_FAT_EN_MSK |
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IWM_STA_FLG_MIMO_EN_MSK),
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.tid_disable_tx = htole16(0xffff),
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};
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int ret;
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uint32_t status;
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uint32_t agg_size = 0, mpdu_dens = 0;
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if (!update) {
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int ac;
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for (ac = 0; ac < WME_NUM_AC; ac++) {
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add_sta_cmd.tfd_queue_msk |=
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htole32(1 << iwm_ac_to_tx_fifo[ac]);
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}
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IEEE80211_ADDR_COPY(&add_sta_cmd.addr, in->in_ni.ni_bssid);
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}
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add_sta_cmd.station_flags |=
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htole32(agg_size << IWM_STA_FLG_MAX_AGG_SIZE_SHIFT);
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add_sta_cmd.station_flags |=
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htole32(mpdu_dens << IWM_STA_FLG_AGG_MPDU_DENS_SHIFT);
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status = IWM_ADD_STA_SUCCESS;
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ret = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA,
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iwm_add_sta_cmd_size(sc),
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&add_sta_cmd, &status);
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if (ret)
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return ret;
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switch (status & IWM_ADD_STA_STATUS_MASK) {
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case IWM_ADD_STA_SUCCESS:
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IWM_DPRINTF(sc, IWM_DEBUG_NODE, "IWM_ADD_STA PASSED\n");
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break;
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default:
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ret = EIO;
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device_printf(sc->sc_dev, "IWM_ADD_STA failed\n");
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break;
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}
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return ret;
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}
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int
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iwm_add_sta(struct iwm_softc *sc, struct iwm_node *in)
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{
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return iwm_sta_send_to_fw(sc, in, FALSE);
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}
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int
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iwm_update_sta(struct iwm_softc *sc, struct iwm_node *in)
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{
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return iwm_sta_send_to_fw(sc, in, TRUE);
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}
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int
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iwm_drain_sta(struct iwm_softc *sc, struct iwm_vap *ivp, boolean_t drain)
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{
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struct iwm_add_sta_cmd cmd = {};
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int ret;
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uint32_t status;
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cmd.mac_id_n_color =
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htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, ivp->color));
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cmd.sta_id = IWM_STATION_ID;
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cmd.add_modify = IWM_STA_MODE_MODIFY;
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cmd.station_flags = drain ? htole32(IWM_STA_FLG_DRAIN_FLOW) : 0;
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cmd.station_flags_msk = htole32(IWM_STA_FLG_DRAIN_FLOW);
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status = IWM_ADD_STA_SUCCESS;
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ret = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA,
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iwm_add_sta_cmd_size(sc),
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&cmd, &status);
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if (ret)
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return ret;
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switch (status & IWM_ADD_STA_STATUS_MASK) {
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case IWM_ADD_STA_SUCCESS:
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IWM_DPRINTF(sc, IWM_DEBUG_NODE,
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"Frames for staid %d will drained in fw\n", IWM_STATION_ID);
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break;
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default:
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ret = EIO;
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device_printf(sc->sc_dev,
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"Couldn't drain frames for staid %d\n", IWM_STATION_ID);
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break;
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}
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return ret;
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}
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/*
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* Remove a station from the FW table. Before sending the command to remove
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* the station validate that the station is indeed known to the driver (sanity
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* only).
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*/
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static int
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iwm_rm_sta_common(struct iwm_softc *sc)
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{
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struct iwm_rm_sta_cmd rm_sta_cmd = {
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.sta_id = IWM_STATION_ID,
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};
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int ret;
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ret = iwm_send_cmd_pdu(sc, IWM_REMOVE_STA, 0,
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sizeof(rm_sta_cmd), &rm_sta_cmd);
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if (ret) {
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device_printf(sc->sc_dev,
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"Failed to remove station. Id=%d\n", IWM_STATION_ID);
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return ret;
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}
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return 0;
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}
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int
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iwm_rm_sta(struct iwm_softc *sc, struct ieee80211vap *vap,
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boolean_t is_assoc)
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{
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uint32_t tfd_queue_msk = 0;
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int ret;
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int ac;
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ret = iwm_drain_sta(sc, IWM_VAP(vap), TRUE);
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if (ret)
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return ret;
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for (ac = 0; ac < WME_NUM_AC; ac++) {
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tfd_queue_msk |= htole32(1 << iwm_ac_to_tx_fifo[ac]);
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}
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ret = iwm_flush_tx_path(sc, tfd_queue_msk, IWM_CMD_SYNC);
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if (ret)
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return ret;
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#ifdef notyet /* function not yet implemented */
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ret = iwl_trans_wait_tx_queue_empty(mvm->trans,
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mvm_sta->tfd_queue_msk);
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if (ret)
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return ret;
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#endif
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ret = iwm_drain_sta(sc, IWM_VAP(vap), FALSE);
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/* if we are associated - we can't remove the AP STA now */
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if (is_assoc)
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return ret;
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/* XXX wait until STA is drained */
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ret = iwm_rm_sta_common(sc);
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return ret;
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}
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int
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iwm_rm_sta_id(struct iwm_softc *sc, struct ieee80211vap *vap)
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{
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/* XXX wait until STA is drained */
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return iwm_rm_sta_common(sc);
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}
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static int
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iwm_add_int_sta_common(struct iwm_softc *sc, struct iwm_int_sta *sta,
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const uint8_t *addr, uint16_t mac_id, uint16_t color)
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{
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struct iwm_add_sta_cmd cmd;
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int ret;
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uint32_t status;
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memset(&cmd, 0, sizeof(cmd));
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cmd.sta_id = sta->sta_id;
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cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(mac_id, color));
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if (sta->sta_id == IWM_AUX_STA_ID && sc->cfg->mqrx_supported)
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cmd.station_type = IWM_STA_AUX_ACTIVITY;
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cmd.tfd_queue_msk = htole32(sta->tfd_queue_msk);
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cmd.tid_disable_tx = htole16(0xffff);
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if (addr)
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IEEE80211_ADDR_COPY(cmd.addr, addr);
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ret = iwm_send_cmd_pdu_status(sc, IWM_ADD_STA,
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iwm_add_sta_cmd_size(sc),
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&cmd, &status);
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if (ret)
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return ret;
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switch (status & IWM_ADD_STA_STATUS_MASK) {
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case IWM_ADD_STA_SUCCESS:
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IWM_DPRINTF(sc, IWM_DEBUG_NODE, "Internal station added.\n");
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return 0;
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default:
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ret = EIO;
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device_printf(sc->sc_dev,
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"Add internal station failed, status=0x%x\n", status);
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break;
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}
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return ret;
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}
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int
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iwm_add_aux_sta(struct iwm_softc *sc)
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{
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int ret;
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sc->sc_aux_sta.sta_id = IWM_AUX_STA_ID;
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sc->sc_aux_sta.tfd_queue_msk = (1 << IWM_AUX_QUEUE);
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/* Map Aux queue to fifo - needs to happen before adding Aux station */
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ret = iwm_enable_txq(sc, IWM_AUX_STA_ID, IWM_AUX_QUEUE,
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IWM_TX_FIFO_MCAST);
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if (ret)
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return ret;
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ret = iwm_add_int_sta_common(sc, &sc->sc_aux_sta, NULL,
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IWM_MAC_INDEX_AUX, 0);
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if (ret) {
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memset(&sc->sc_aux_sta, 0, sizeof(sc->sc_aux_sta));
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sc->sc_aux_sta.sta_id = IWM_STATION_COUNT;
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}
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return ret;
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}
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void iwm_del_aux_sta(struct iwm_softc *sc)
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{
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memset(&sc->sc_aux_sta, 0, sizeof(sc->sc_aux_sta));
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sc->sc_aux_sta.sta_id = IWM_STATION_COUNT;
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}
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