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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2022 Intel Corporation
*/
#include "mvm.h"
static int iwl_mvm_link_cmd_send(struct iwl_mvm *mvm,
struct iwl_link_config_cmd *cmd,
enum iwl_ctxt_action action)
{
int ret;
cmd->action = cpu_to_le32(action);
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(MAC_CONF_GROUP, LINK_CONFIG_CMD), 0,
sizeof(*cmd), cmd);
if (ret)
IWL_ERR(mvm, "Failed to send LINK_CONFIG_CMD (action:%d): %d\n",
action, ret);
return ret;
}
int iwl_mvm_add_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_link_config_cmd cmd = {};
if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
return -EINVAL;
/* Update SF - Disable if needed. if this fails, SF might still be on
* while many macs are bound, which is forbidden - so fail the binding.
*/
if (iwl_mvm_sf_update(mvm, vif, false))
return -EINVAL;
cmd.link_id = cpu_to_le32(mvmvif->phy_ctxt->id);
cmd.mac_id = cpu_to_le32(mvmvif->id);
cmd.phy_id = cpu_to_le32(mvmvif->phy_ctxt->id);
memcpy(cmd.local_link_addr, vif->addr, ETH_ALEN);
return iwl_mvm_link_cmd_send(mvm, &cmd, FW_CTXT_ACTION_ADD);
}
int iwl_mvm_link_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
u32 changes, bool active)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm_phy_ctxt *phyctxt = mvmvif->phy_ctxt;
struct iwl_link_config_cmd cmd = {};
u32 ht_flag, flags = 0, flags_mask = 0;
if (!phyctxt)
return -EINVAL;
cmd.link_id = cpu_to_le32(phyctxt->id);
/* The phy_id, link address and listen_lmac can be modified only until
* the link becomes active, otherwise they will be ignored.
*/
cmd.phy_id = cpu_to_le32(phyctxt->id);
cmd.mac_id = cpu_to_le32(mvmvif->id);
memcpy(cmd.local_link_addr, vif->addr, ETH_ALEN);
cmd.active = cpu_to_le32(active);
/* TODO: set a value to cmd.listen_lmac when system requiremens
* will define it
*/
iwl_mvm_set_fw_basic_rates(mvm, vif, &cmd.cck_rates, &cmd.ofdm_rates);
cmd.cck_short_preamble = cpu_to_le32(vif->bss_conf.use_short_preamble);
cmd.short_slot = cpu_to_le32(vif->bss_conf.use_short_slot);
/* The fw does not distinguish between ht and fat */
ht_flag = LINK_PROT_FLG_HT_PROT | LINK_PROT_FLG_FAT_PROT;
iwl_mvm_set_fw_protection_flags(mvm, vif, &cmd.protection_flags,
ht_flag, LINK_PROT_FLG_TGG_PROTECT);
iwl_mvm_set_fw_qos_params(mvm, vif, &cmd.ac[0], &cmd.qos_flags);
/* We need the dtim_period to set the MAC as associated */
if (vif->cfg.assoc && vif->bss_conf.dtim_period)
iwl_mvm_set_fw_dtim_tbtt(mvm, vif, &cmd.dtim_tsf,
&cmd.dtim_time,
&cmd.assoc_beacon_arrive_time);
else
changes &= ~LINK_CONTEXT_MODIFY_BEACON_TIMING;
cmd.bi = cpu_to_le32(vif->bss_conf.beacon_int);
cmd.dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
vif->bss_conf.dtim_period);
/* TODO: Assumes that the beacon id == mac context id */
cmd.beacon_template = cpu_to_le32(mvmvif->id);
if (!vif->bss_conf.he_support || iwlwifi_mod_params.disable_11ax ||
!vif->cfg.assoc) {
changes &= ~LINK_CONTEXT_MODIFY_HE_PARAMS;
goto send_cmd;
}
cmd.htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext;
if (vif->bss_conf.uora_exists) {
cmd.rand_alloc_ecwmin =
vif->bss_conf.uora_ocw_range & 0x7;
cmd.rand_alloc_ecwmax =
(vif->bss_conf.uora_ocw_range >> 3) & 0x7;
}
/* TODO how to set ndp_fdbk_buff_th_exp? */
if (iwl_mvm_set_fw_mu_edca_params(mvm, mvmvif,
&cmd.trig_based_txf[0])) {
flags |= LINK_FLG_MU_EDCA_CW;
flags_mask |= LINK_FLG_MU_EDCA_CW;
}
if (vif->bss_conf.eht_puncturing && !iwlwifi_mod_params.disable_11be)
cmd.puncture_mask = cpu_to_le16(vif->bss_conf.eht_puncturing);
else
/* This flag can be set only if the MAC has eht support */
changes &= ~LINK_CONTEXT_MODIFY_EHT_PARAMS;
cmd.bss_color = vif->bss_conf.he_bss_color.color;
if (!vif->bss_conf.he_bss_color.enabled) {
flags |= LINK_FLG_BSS_COLOR_DIS;
flags_mask |= LINK_FLG_BSS_COLOR_DIS;
}
cmd.frame_time_rts_th = cpu_to_le16(vif->bss_conf.frame_time_rts_th);
/* Block 26-tone RU OFDMA transmissions */
if (mvmvif->he_ru_2mhz_block) {
flags |= LINK_FLG_RU_2MHZ_BLOCK;
flags_mask |= LINK_FLG_RU_2MHZ_BLOCK;
}
if (vif->bss_conf.nontransmitted) {
ether_addr_copy(cmd.ref_bssid_addr,
vif->bss_conf.transmitter_bssid);
cmd.bssid_index = vif->bss_conf.bssid_index;
}
send_cmd:
cmd.modify_mask = cpu_to_le32(changes);
cmd.flags = cpu_to_le32(flags);
cmd.flags_mask = cpu_to_le32(flags_mask);
return iwl_mvm_link_cmd_send(mvm, &cmd, FW_CTXT_ACTION_MODIFY);
}
int iwl_mvm_remove_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_link_config_cmd cmd = {};
int ret;
if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
return -EINVAL;
cmd.link_id = cpu_to_le32(mvmvif->phy_ctxt->id);
ret = iwl_mvm_link_cmd_send(mvm, &cmd, FW_CTXT_ACTION_REMOVE);
if (!ret)
if (iwl_mvm_sf_update(mvm, vif, true))
IWL_ERR(mvm, "Failed to update SF state\n");
return ret;
}
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