749 lines
24 KiB
C
749 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
|
|
/*
|
|
* Copyright (C) 2017 Intel Deutschland GmbH
|
|
* Copyright (C) 2018-2023 Intel Corporation
|
|
*/
|
|
#include "rs.h"
|
|
#include "fw-api.h"
|
|
#include "sta.h"
|
|
#include "iwl-op-mode.h"
|
|
#include "mvm.h"
|
|
|
|
static u8 rs_fw_bw_from_sta_bw(const struct ieee80211_link_sta *link_sta)
|
|
{
|
|
switch (link_sta->bandwidth) {
|
|
case IEEE80211_STA_RX_BW_320:
|
|
return IWL_TLC_MNG_CH_WIDTH_320MHZ;
|
|
case IEEE80211_STA_RX_BW_160:
|
|
return IWL_TLC_MNG_CH_WIDTH_160MHZ;
|
|
case IEEE80211_STA_RX_BW_80:
|
|
return IWL_TLC_MNG_CH_WIDTH_80MHZ;
|
|
case IEEE80211_STA_RX_BW_40:
|
|
return IWL_TLC_MNG_CH_WIDTH_40MHZ;
|
|
case IEEE80211_STA_RX_BW_20:
|
|
default:
|
|
return IWL_TLC_MNG_CH_WIDTH_20MHZ;
|
|
}
|
|
}
|
|
|
|
static u8 rs_fw_set_active_chains(u8 chains)
|
|
{
|
|
u8 fw_chains = 0;
|
|
|
|
if (chains & ANT_A)
|
|
fw_chains |= IWL_TLC_MNG_CHAIN_A_MSK;
|
|
if (chains & ANT_B)
|
|
fw_chains |= IWL_TLC_MNG_CHAIN_B_MSK;
|
|
|
|
return fw_chains;
|
|
}
|
|
|
|
static u8 rs_fw_sgi_cw_support(struct ieee80211_link_sta *link_sta)
|
|
{
|
|
struct ieee80211_sta_ht_cap *ht_cap = &link_sta->ht_cap;
|
|
struct ieee80211_sta_vht_cap *vht_cap = &link_sta->vht_cap;
|
|
struct ieee80211_sta_he_cap *he_cap = &link_sta->he_cap;
|
|
u8 supp = 0;
|
|
|
|
if (he_cap->has_he)
|
|
return 0;
|
|
|
|
if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
|
|
supp |= BIT(IWL_TLC_MNG_CH_WIDTH_20MHZ);
|
|
if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
|
|
supp |= BIT(IWL_TLC_MNG_CH_WIDTH_40MHZ);
|
|
if (vht_cap->cap & IEEE80211_VHT_CAP_SHORT_GI_80)
|
|
supp |= BIT(IWL_TLC_MNG_CH_WIDTH_80MHZ);
|
|
if (vht_cap->cap & IEEE80211_VHT_CAP_SHORT_GI_160)
|
|
supp |= BIT(IWL_TLC_MNG_CH_WIDTH_160MHZ);
|
|
|
|
return supp;
|
|
}
|
|
|
|
static u16 rs_fw_get_config_flags(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_link_sta *link_sta,
|
|
const struct ieee80211_sta_he_cap *sband_he_cap)
|
|
{
|
|
struct ieee80211_sta_ht_cap *ht_cap = &link_sta->ht_cap;
|
|
struct ieee80211_sta_vht_cap *vht_cap = &link_sta->vht_cap;
|
|
struct ieee80211_sta_he_cap *he_cap = &link_sta->he_cap;
|
|
bool vht_ena = vht_cap->vht_supported;
|
|
u16 flags = 0;
|
|
|
|
/* get STBC flags */
|
|
if (mvm->cfg->ht_params->stbc &&
|
|
(num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1)) {
|
|
if (he_cap->has_he && he_cap->he_cap_elem.phy_cap_info[2] &
|
|
IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ)
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_STBC_MSK;
|
|
else if (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK)
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_STBC_MSK;
|
|
else if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC)
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_STBC_MSK;
|
|
}
|
|
|
|
if (mvm->cfg->ht_params->ldpc &&
|
|
((ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING) ||
|
|
(vht_ena && (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))))
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
|
|
|
|
/* consider LDPC support in case of HE */
|
|
if (he_cap->has_he && (he_cap->he_cap_elem.phy_cap_info[1] &
|
|
IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
|
|
|
|
if (sband_he_cap &&
|
|
!(sband_he_cap->he_cap_elem.phy_cap_info[1] &
|
|
IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))
|
|
flags &= ~IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
|
|
|
|
if (he_cap->has_he &&
|
|
(he_cap->he_cap_elem.phy_cap_info[3] &
|
|
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK &&
|
|
sband_he_cap &&
|
|
sband_he_cap->he_cap_elem.phy_cap_info[3] &
|
|
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK))
|
|
flags |= IWL_TLC_MNG_CFG_FLAGS_HE_DCM_NSS_1_MSK;
|
|
|
|
return flags;
|
|
}
|
|
|
|
static
|
|
int rs_fw_vht_highest_rx_mcs_index(const struct ieee80211_sta_vht_cap *vht_cap,
|
|
int nss)
|
|
{
|
|
u16 rx_mcs = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) &
|
|
(0x3 << (2 * (nss - 1)));
|
|
rx_mcs >>= (2 * (nss - 1));
|
|
|
|
switch (rx_mcs) {
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_7:
|
|
return IWL_TLC_MNG_HT_RATE_MCS7;
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_8:
|
|
return IWL_TLC_MNG_HT_RATE_MCS8;
|
|
case IEEE80211_VHT_MCS_SUPPORT_0_9:
|
|
return IWL_TLC_MNG_HT_RATE_MCS9;
|
|
default:
|
|
WARN_ON_ONCE(1);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rs_fw_vht_set_enabled_rates(const struct ieee80211_link_sta *link_sta,
|
|
const struct ieee80211_sta_vht_cap *vht_cap,
|
|
struct iwl_tlc_config_cmd_v4 *cmd)
|
|
{
|
|
u16 supp;
|
|
int i, highest_mcs;
|
|
u8 max_nss = link_sta->rx_nss;
|
|
struct ieee80211_vht_cap ieee_vht_cap = {
|
|
.vht_cap_info = cpu_to_le32(vht_cap->cap),
|
|
.supp_mcs = vht_cap->vht_mcs,
|
|
};
|
|
|
|
/* the station support only a single receive chain */
|
|
if (link_sta->smps_mode == IEEE80211_SMPS_STATIC)
|
|
max_nss = 1;
|
|
|
|
for (i = 0; i < max_nss && i < IWL_TLC_NSS_MAX; i++) {
|
|
int nss = i + 1;
|
|
|
|
highest_mcs = rs_fw_vht_highest_rx_mcs_index(vht_cap, nss);
|
|
if (!highest_mcs)
|
|
continue;
|
|
|
|
supp = BIT(highest_mcs + 1) - 1;
|
|
if (link_sta->bandwidth == IEEE80211_STA_RX_BW_20)
|
|
supp &= ~BIT(IWL_TLC_MNG_HT_RATE_MCS9);
|
|
|
|
cmd->ht_rates[i][IWL_TLC_MCS_PER_BW_80] = cpu_to_le16(supp);
|
|
/*
|
|
* Check if VHT extended NSS indicates that the bandwidth/NSS
|
|
* configuration is supported - only for MCS 0 since we already
|
|
* decoded the MCS bits anyway ourselves.
|
|
*/
|
|
if (link_sta->bandwidth == IEEE80211_STA_RX_BW_160 &&
|
|
ieee80211_get_vht_max_nss(&ieee_vht_cap,
|
|
IEEE80211_VHT_CHANWIDTH_160MHZ,
|
|
0, true, nss) >= nss)
|
|
cmd->ht_rates[i][IWL_TLC_MCS_PER_BW_160] =
|
|
cmd->ht_rates[i][IWL_TLC_MCS_PER_BW_80];
|
|
}
|
|
}
|
|
|
|
static u16 rs_fw_he_ieee80211_mcs_to_rs_mcs(u16 mcs)
|
|
{
|
|
switch (mcs) {
|
|
case IEEE80211_HE_MCS_SUPPORT_0_7:
|
|
return BIT(IWL_TLC_MNG_HT_RATE_MCS7 + 1) - 1;
|
|
case IEEE80211_HE_MCS_SUPPORT_0_9:
|
|
return BIT(IWL_TLC_MNG_HT_RATE_MCS9 + 1) - 1;
|
|
case IEEE80211_HE_MCS_SUPPORT_0_11:
|
|
return BIT(IWL_TLC_MNG_HT_RATE_MCS11 + 1) - 1;
|
|
case IEEE80211_HE_MCS_NOT_SUPPORTED:
|
|
return 0;
|
|
}
|
|
|
|
WARN(1, "invalid HE MCS %d\n", mcs);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rs_fw_he_set_enabled_rates(const struct ieee80211_link_sta *link_sta,
|
|
const struct ieee80211_sta_he_cap *sband_he_cap,
|
|
struct iwl_tlc_config_cmd_v4 *cmd)
|
|
{
|
|
const struct ieee80211_sta_he_cap *he_cap = &link_sta->he_cap;
|
|
u16 mcs_160 = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
|
|
u16 mcs_80 = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80);
|
|
u16 tx_mcs_80 = le16_to_cpu(sband_he_cap->he_mcs_nss_supp.tx_mcs_80);
|
|
u16 tx_mcs_160 = le16_to_cpu(sband_he_cap->he_mcs_nss_supp.tx_mcs_160);
|
|
int i;
|
|
u8 nss = link_sta->rx_nss;
|
|
|
|
/* the station support only a single receive chain */
|
|
if (link_sta->smps_mode == IEEE80211_SMPS_STATIC)
|
|
nss = 1;
|
|
|
|
for (i = 0; i < nss && i < IWL_TLC_NSS_MAX; i++) {
|
|
u16 _mcs_160 = (mcs_160 >> (2 * i)) & 0x3;
|
|
u16 _mcs_80 = (mcs_80 >> (2 * i)) & 0x3;
|
|
u16 _tx_mcs_160 = (tx_mcs_160 >> (2 * i)) & 0x3;
|
|
u16 _tx_mcs_80 = (tx_mcs_80 >> (2 * i)) & 0x3;
|
|
|
|
/* If one side doesn't support - mark both as not supporting */
|
|
if (_mcs_80 == IEEE80211_HE_MCS_NOT_SUPPORTED ||
|
|
_tx_mcs_80 == IEEE80211_HE_MCS_NOT_SUPPORTED) {
|
|
_mcs_80 = IEEE80211_HE_MCS_NOT_SUPPORTED;
|
|
_tx_mcs_80 = IEEE80211_HE_MCS_NOT_SUPPORTED;
|
|
}
|
|
if (_mcs_80 > _tx_mcs_80)
|
|
_mcs_80 = _tx_mcs_80;
|
|
cmd->ht_rates[i][IWL_TLC_MCS_PER_BW_80] =
|
|
cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_80));
|
|
|
|
/* If one side doesn't support - mark both as not supporting */
|
|
if (_mcs_160 == IEEE80211_HE_MCS_NOT_SUPPORTED ||
|
|
_tx_mcs_160 == IEEE80211_HE_MCS_NOT_SUPPORTED) {
|
|
_mcs_160 = IEEE80211_HE_MCS_NOT_SUPPORTED;
|
|
_tx_mcs_160 = IEEE80211_HE_MCS_NOT_SUPPORTED;
|
|
}
|
|
if (_mcs_160 > _tx_mcs_160)
|
|
_mcs_160 = _tx_mcs_160;
|
|
cmd->ht_rates[i][IWL_TLC_MCS_PER_BW_160] =
|
|
cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_160));
|
|
}
|
|
}
|
|
|
|
static u8 rs_fw_eht_max_nss(u8 rx_nss, u8 tx_nss)
|
|
{
|
|
u8 tx = u8_get_bits(tx_nss, IEEE80211_EHT_MCS_NSS_TX);
|
|
u8 rx = u8_get_bits(rx_nss, IEEE80211_EHT_MCS_NSS_RX);
|
|
/* the max nss that can be used,
|
|
* is the min with our tx capa and the peer rx capa.
|
|
*/
|
|
return min(tx, rx);
|
|
}
|
|
|
|
#define MAX_NSS_MCS(mcs_num, rx, tx) \
|
|
rs_fw_eht_max_nss((rx)->rx_tx_mcs ##mcs_num## _max_nss, \
|
|
(tx)->rx_tx_mcs ##mcs_num## _max_nss)
|
|
|
|
static void rs_fw_set_eht_mcs_nss(__le16 ht_rates[][3],
|
|
enum IWL_TLC_MCS_PER_BW bw,
|
|
u8 max_nss, u16 mcs_msk)
|
|
{
|
|
if (max_nss >= 2)
|
|
ht_rates[IWL_TLC_NSS_2][bw] |= cpu_to_le16(mcs_msk);
|
|
|
|
if (max_nss >= 1)
|
|
ht_rates[IWL_TLC_NSS_1][bw] |= cpu_to_le16(mcs_msk);
|
|
}
|
|
|
|
static const
|
|
struct ieee80211_eht_mcs_nss_supp_bw *
|
|
rs_fw_rs_mcs2eht_mcs(enum IWL_TLC_MCS_PER_BW bw,
|
|
const struct ieee80211_eht_mcs_nss_supp *eht_mcs)
|
|
{
|
|
switch (bw) {
|
|
case IWL_TLC_MCS_PER_BW_80:
|
|
return &eht_mcs->bw._80;
|
|
case IWL_TLC_MCS_PER_BW_160:
|
|
return &eht_mcs->bw._160;
|
|
case IWL_TLC_MCS_PER_BW_320:
|
|
return &eht_mcs->bw._320;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
rs_fw_eht_set_enabled_rates(struct ieee80211_vif *vif,
|
|
const struct ieee80211_link_sta *link_sta,
|
|
const struct ieee80211_sta_he_cap *sband_he_cap,
|
|
const struct ieee80211_sta_eht_cap *sband_eht_cap,
|
|
struct iwl_tlc_config_cmd_v4 *cmd)
|
|
{
|
|
/* peer RX mcs capa */
|
|
const struct ieee80211_eht_mcs_nss_supp *eht_rx_mcs =
|
|
&link_sta->eht_cap.eht_mcs_nss_supp;
|
|
/* our TX mcs capa */
|
|
const struct ieee80211_eht_mcs_nss_supp *eht_tx_mcs =
|
|
&sband_eht_cap->eht_mcs_nss_supp;
|
|
|
|
enum IWL_TLC_MCS_PER_BW bw;
|
|
struct ieee80211_eht_mcs_nss_supp_20mhz_only mcs_rx_20;
|
|
struct ieee80211_eht_mcs_nss_supp_20mhz_only mcs_tx_20;
|
|
|
|
/* peer is 20Mhz only */
|
|
if (vif->type == NL80211_IFTYPE_AP &&
|
|
!(link_sta->he_cap.he_cap_elem.phy_cap_info[0] &
|
|
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) {
|
|
mcs_rx_20 = eht_rx_mcs->only_20mhz;
|
|
} else {
|
|
mcs_rx_20.rx_tx_mcs7_max_nss = eht_rx_mcs->bw._80.rx_tx_mcs9_max_nss;
|
|
mcs_rx_20.rx_tx_mcs9_max_nss = eht_rx_mcs->bw._80.rx_tx_mcs9_max_nss;
|
|
mcs_rx_20.rx_tx_mcs11_max_nss = eht_rx_mcs->bw._80.rx_tx_mcs11_max_nss;
|
|
mcs_rx_20.rx_tx_mcs13_max_nss = eht_rx_mcs->bw._80.rx_tx_mcs13_max_nss;
|
|
}
|
|
|
|
/* nic is 20Mhz only */
|
|
if (!(sband_he_cap->he_cap_elem.phy_cap_info[0] &
|
|
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL)) {
|
|
mcs_tx_20 = eht_tx_mcs->only_20mhz;
|
|
} else {
|
|
mcs_tx_20.rx_tx_mcs7_max_nss = eht_tx_mcs->bw._80.rx_tx_mcs9_max_nss;
|
|
mcs_tx_20.rx_tx_mcs9_max_nss = eht_tx_mcs->bw._80.rx_tx_mcs9_max_nss;
|
|
mcs_tx_20.rx_tx_mcs11_max_nss = eht_tx_mcs->bw._80.rx_tx_mcs11_max_nss;
|
|
mcs_tx_20.rx_tx_mcs13_max_nss = eht_tx_mcs->bw._80.rx_tx_mcs13_max_nss;
|
|
}
|
|
|
|
/* rates for 20/40/80 bw */
|
|
bw = IWL_TLC_MCS_PER_BW_80;
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(7, &mcs_rx_20, &mcs_tx_20), GENMASK(7, 0));
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(9, &mcs_rx_20, &mcs_tx_20), GENMASK(9, 8));
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(11, &mcs_rx_20, &mcs_tx_20), GENMASK(11, 10));
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(13, &mcs_rx_20, &mcs_tx_20), GENMASK(13, 12));
|
|
|
|
/* rate for 160/320 bw */
|
|
for (bw = IWL_TLC_MCS_PER_BW_160; bw <= IWL_TLC_MCS_PER_BW_320; bw++) {
|
|
const struct ieee80211_eht_mcs_nss_supp_bw *mcs_rx =
|
|
rs_fw_rs_mcs2eht_mcs(bw, eht_rx_mcs);
|
|
const struct ieee80211_eht_mcs_nss_supp_bw *mcs_tx =
|
|
rs_fw_rs_mcs2eht_mcs(bw, eht_tx_mcs);
|
|
|
|
/* got unsupported index for bw */
|
|
if (!mcs_rx || !mcs_tx)
|
|
continue;
|
|
|
|
/* break out if we don't support the bandwidth */
|
|
if (cmd->max_ch_width < (bw + IWL_TLC_MNG_CH_WIDTH_80MHZ))
|
|
break;
|
|
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(9, mcs_rx, mcs_tx), GENMASK(9, 0));
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(11, mcs_rx, mcs_tx), GENMASK(11, 10));
|
|
rs_fw_set_eht_mcs_nss(cmd->ht_rates, bw,
|
|
MAX_NSS_MCS(13, mcs_rx, mcs_tx), GENMASK(13, 12));
|
|
}
|
|
|
|
/* the station support only a single receive chain */
|
|
if (link_sta->smps_mode == IEEE80211_SMPS_STATIC ||
|
|
link_sta->rx_nss < 2)
|
|
memset(cmd->ht_rates[IWL_TLC_NSS_2], 0,
|
|
sizeof(cmd->ht_rates[IWL_TLC_NSS_2]));
|
|
}
|
|
|
|
static void rs_fw_set_supp_rates(struct ieee80211_vif *vif,
|
|
struct ieee80211_link_sta *link_sta,
|
|
struct ieee80211_supported_band *sband,
|
|
const struct ieee80211_sta_he_cap *sband_he_cap,
|
|
const struct ieee80211_sta_eht_cap *sband_eht_cap,
|
|
struct iwl_tlc_config_cmd_v4 *cmd)
|
|
{
|
|
int i;
|
|
u16 supp = 0;
|
|
unsigned long tmp; /* must be unsigned long for for_each_set_bit */
|
|
const struct ieee80211_sta_ht_cap *ht_cap = &link_sta->ht_cap;
|
|
const struct ieee80211_sta_vht_cap *vht_cap = &link_sta->vht_cap;
|
|
const struct ieee80211_sta_he_cap *he_cap = &link_sta->he_cap;
|
|
|
|
/* non HT rates */
|
|
tmp = link_sta->supp_rates[sband->band];
|
|
for_each_set_bit(i, &tmp, BITS_PER_LONG)
|
|
supp |= BIT(sband->bitrates[i].hw_value);
|
|
|
|
cmd->non_ht_rates = cpu_to_le16(supp);
|
|
cmd->mode = IWL_TLC_MNG_MODE_NON_HT;
|
|
|
|
/* HT/VHT rates */
|
|
if (link_sta->eht_cap.has_eht && sband_he_cap && sband_eht_cap) {
|
|
cmd->mode = IWL_TLC_MNG_MODE_EHT;
|
|
rs_fw_eht_set_enabled_rates(vif, link_sta, sband_he_cap,
|
|
sband_eht_cap, cmd);
|
|
} else if (he_cap->has_he && sband_he_cap) {
|
|
cmd->mode = IWL_TLC_MNG_MODE_HE;
|
|
rs_fw_he_set_enabled_rates(link_sta, sband_he_cap, cmd);
|
|
} else if (vht_cap->vht_supported) {
|
|
cmd->mode = IWL_TLC_MNG_MODE_VHT;
|
|
rs_fw_vht_set_enabled_rates(link_sta, vht_cap, cmd);
|
|
} else if (ht_cap->ht_supported) {
|
|
cmd->mode = IWL_TLC_MNG_MODE_HT;
|
|
cmd->ht_rates[IWL_TLC_NSS_1][IWL_TLC_MCS_PER_BW_80] =
|
|
cpu_to_le16(ht_cap->mcs.rx_mask[0]);
|
|
|
|
/* the station support only a single receive chain */
|
|
if (link_sta->smps_mode == IEEE80211_SMPS_STATIC)
|
|
cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_MCS_PER_BW_80] =
|
|
0;
|
|
else
|
|
cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_MCS_PER_BW_80] =
|
|
cpu_to_le16(ht_cap->mcs.rx_mask[1]);
|
|
}
|
|
}
|
|
|
|
void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_tlc_update_notif *notif;
|
|
struct ieee80211_sta *sta;
|
|
struct ieee80211_link_sta *link_sta;
|
|
struct iwl_mvm_sta *mvmsta;
|
|
struct iwl_mvm_link_sta *mvm_link_sta;
|
|
struct iwl_lq_sta_rs_fw *lq_sta;
|
|
u32 flags;
|
|
|
|
rcu_read_lock();
|
|
|
|
notif = (void *)pkt->data;
|
|
link_sta = rcu_dereference(mvm->fw_id_to_link_sta[notif->sta_id]);
|
|
sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
|
|
if (IS_ERR_OR_NULL(sta) || !link_sta) {
|
|
/* can happen in remove station flow where mvm removed internally
|
|
* the station before removing from FW
|
|
*/
|
|
IWL_DEBUG_RATE(mvm,
|
|
"Invalid mvm RCU pointer for sta id (%d) in TLC notification\n",
|
|
notif->sta_id);
|
|
goto out;
|
|
}
|
|
|
|
mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
|
|
if (!mvmsta) {
|
|
IWL_ERR(mvm, "Invalid sta id (%d) in FW TLC notification\n",
|
|
notif->sta_id);
|
|
goto out;
|
|
}
|
|
|
|
flags = le32_to_cpu(notif->flags);
|
|
|
|
mvm_link_sta = rcu_dereference(mvmsta->link[link_sta->link_id]);
|
|
if (!mvm_link_sta) {
|
|
IWL_DEBUG_RATE(mvm,
|
|
"Invalid mvmsta RCU pointer for link (%d) of sta id (%d) in TLC notification\n",
|
|
link_sta->link_id, notif->sta_id);
|
|
goto out;
|
|
}
|
|
lq_sta = &mvm_link_sta->lq_sta.rs_fw;
|
|
|
|
if (flags & IWL_TLC_NOTIF_FLAG_RATE) {
|
|
char pretty_rate[100];
|
|
|
|
if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,
|
|
TLC_MNG_UPDATE_NOTIF, 0) < 3) {
|
|
rs_pretty_print_rate_v1(pretty_rate,
|
|
sizeof(pretty_rate),
|
|
le32_to_cpu(notif->rate));
|
|
IWL_DEBUG_RATE(mvm,
|
|
"Got rate in old format. Rate: %s. Converting.\n",
|
|
pretty_rate);
|
|
lq_sta->last_rate_n_flags =
|
|
iwl_new_rate_from_v1(le32_to_cpu(notif->rate));
|
|
} else {
|
|
lq_sta->last_rate_n_flags = le32_to_cpu(notif->rate);
|
|
}
|
|
rs_pretty_print_rate(pretty_rate, sizeof(pretty_rate),
|
|
lq_sta->last_rate_n_flags);
|
|
IWL_DEBUG_RATE(mvm, "new rate: %s\n", pretty_rate);
|
|
}
|
|
|
|
if (flags & IWL_TLC_NOTIF_FLAG_AMSDU && !mvm_link_sta->orig_amsdu_len) {
|
|
u16 size = le32_to_cpu(notif->amsdu_size);
|
|
int i;
|
|
|
|
if (link_sta->agg.max_amsdu_len < size) {
|
|
/*
|
|
* In debug link_sta->agg.max_amsdu_len < size
|
|
* so also check with orig_amsdu_len which holds the
|
|
* original data before debugfs changed the value
|
|
*/
|
|
WARN_ON(mvm_link_sta->orig_amsdu_len < size);
|
|
goto out;
|
|
}
|
|
|
|
mvmsta->amsdu_enabled = le32_to_cpu(notif->amsdu_enabled);
|
|
mvmsta->max_amsdu_len = size;
|
|
link_sta->agg.max_rc_amsdu_len = mvmsta->max_amsdu_len;
|
|
|
|
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
|
|
if (mvmsta->amsdu_enabled & BIT(i))
|
|
link_sta->agg.max_tid_amsdu_len[i] =
|
|
iwl_mvm_max_amsdu_size(mvm, sta, i);
|
|
else
|
|
/*
|
|
* Not so elegant, but this will effectively
|
|
* prevent AMSDU on this TID
|
|
*/
|
|
link_sta->agg.max_tid_amsdu_len[i] = 1;
|
|
}
|
|
|
|
IWL_DEBUG_RATE(mvm,
|
|
"AMSDU update. AMSDU size: %d, AMSDU selected size: %d, AMSDU TID bitmap 0x%X\n",
|
|
le32_to_cpu(notif->amsdu_size), size,
|
|
mvmsta->amsdu_enabled);
|
|
}
|
|
out:
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta,
|
|
struct ieee80211_bss_conf *link_conf,
|
|
struct ieee80211_link_sta *link_sta)
|
|
{
|
|
const struct ieee80211_sta_vht_cap *vht_cap = &link_sta->vht_cap;
|
|
const struct ieee80211_sta_ht_cap *ht_cap = &link_sta->ht_cap;
|
|
const struct ieee80211_sta_eht_cap *eht_cap = &link_sta->eht_cap;
|
|
|
|
if (WARN_ON_ONCE(!link_conf->chandef.chan))
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_3895;
|
|
|
|
if (link_conf->chandef.chan->band == NL80211_BAND_6GHZ) {
|
|
switch (le16_get_bits(link_sta->he_6ghz_capa.capa,
|
|
IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN)) {
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_11454;
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_7991;
|
|
default:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_3895;
|
|
}
|
|
} else if (link_conf->chandef.chan->band == NL80211_BAND_2GHZ &&
|
|
eht_cap->has_eht) {
|
|
switch (u8_get_bits(eht_cap->eht_cap_elem.mac_cap_info[0],
|
|
IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK)) {
|
|
case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_11454;
|
|
case IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_7991;
|
|
default:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_3895;
|
|
}
|
|
} else if (vht_cap->vht_supported) {
|
|
switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_11454;
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_7991;
|
|
default:
|
|
return IEEE80211_MAX_MPDU_LEN_VHT_3895;
|
|
}
|
|
} else if (ht_cap->ht_supported) {
|
|
if (ht_cap->cap & IEEE80211_HT_CAP_MAX_AMSDU)
|
|
/*
|
|
* agg is offloaded so we need to assume that agg
|
|
* are enabled and max mpdu in ampdu is 4095
|
|
* (spec 802.11-2016 9.3.2.1)
|
|
*/
|
|
return IEEE80211_MAX_MPDU_LEN_HT_BA;
|
|
else
|
|
return IEEE80211_MAX_MPDU_LEN_HT_3839;
|
|
}
|
|
|
|
/* in legacy mode no amsdu is enabled so return zero */
|
|
return 0;
|
|
}
|
|
|
|
void iwl_mvm_rs_fw_rate_init(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
struct ieee80211_bss_conf *link_conf,
|
|
struct ieee80211_link_sta *link_sta,
|
|
enum nl80211_band band)
|
|
{
|
|
struct ieee80211_hw *hw = mvm->hw;
|
|
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, TLC_MNG_CONFIG_CMD);
|
|
struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
|
|
u16 max_amsdu_len = rs_fw_get_max_amsdu_len(sta, link_conf, link_sta);
|
|
const struct ieee80211_sta_he_cap *sband_he_cap =
|
|
ieee80211_get_he_iftype_cap_vif(sband, vif);
|
|
const struct ieee80211_sta_eht_cap *sband_eht_cap =
|
|
ieee80211_get_eht_iftype_cap_vif(sband, vif);
|
|
struct iwl_mvm_link_sta *mvm_link_sta;
|
|
struct iwl_lq_sta_rs_fw *lq_sta;
|
|
struct iwl_tlc_config_cmd_v4 cfg_cmd = {
|
|
.max_ch_width = mvmsta->authorized ?
|
|
rs_fw_bw_from_sta_bw(link_sta) : IWL_TLC_MNG_CH_WIDTH_20MHZ,
|
|
.flags = cpu_to_le16(rs_fw_get_config_flags(mvm, vif, link_sta,
|
|
sband_he_cap)),
|
|
.chains = rs_fw_set_active_chains(iwl_mvm_get_valid_tx_ant(mvm)),
|
|
.sgi_ch_width_supp = rs_fw_sgi_cw_support(link_sta),
|
|
.max_mpdu_len = iwl_mvm_is_csum_supported(mvm) ?
|
|
cpu_to_le16(max_amsdu_len) : 0,
|
|
};
|
|
unsigned int link_id = link_conf->link_id;
|
|
int cmd_ver;
|
|
int ret;
|
|
|
|
/* Enable external EHT LTF only for GL device and if there's
|
|
* mutual support by AP and client
|
|
*/
|
|
if (CSR_HW_REV_TYPE(mvm->trans->hw_rev) == IWL_CFG_MAC_TYPE_GL &&
|
|
sband_eht_cap &&
|
|
sband_eht_cap->eht_cap_elem.phy_cap_info[5] &
|
|
IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF &&
|
|
link_sta->eht_cap.has_eht &&
|
|
link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
|
|
IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF) {
|
|
IWL_DEBUG_RATE(mvm, "Set support for Extra EHT LTF\n");
|
|
cfg_cmd.flags |=
|
|
cpu_to_le16(IWL_TLC_MNG_CFG_FLAGS_EHT_EXTRA_LTF_MSK);
|
|
}
|
|
|
|
rcu_read_lock();
|
|
mvm_link_sta = rcu_dereference(mvmsta->link[link_id]);
|
|
if (WARN_ON_ONCE(!mvm_link_sta)) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
|
|
cfg_cmd.sta_id = mvm_link_sta->sta_id;
|
|
|
|
lq_sta = &mvm_link_sta->lq_sta.rs_fw;
|
|
memset(lq_sta, 0, offsetof(typeof(*lq_sta), pers));
|
|
|
|
rcu_read_unlock();
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUGFS
|
|
iwl_mvm_reset_frame_stats(mvm);
|
|
#endif
|
|
rs_fw_set_supp_rates(vif, link_sta, sband,
|
|
sband_he_cap, sband_eht_cap,
|
|
&cfg_cmd);
|
|
|
|
/*
|
|
* since TLC offload works with one mode we can assume
|
|
* that only vht/ht is used and also set it as station max amsdu
|
|
*/
|
|
sta->deflink.agg.max_amsdu_len = max_amsdu_len;
|
|
|
|
cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
|
|
WIDE_ID(DATA_PATH_GROUP,
|
|
TLC_MNG_CONFIG_CMD),
|
|
0);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, sta_id=%d, max_ch_width=%d, mode=%d\n",
|
|
cfg_cmd.sta_id, cfg_cmd.max_ch_width, cfg_cmd.mode);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, chains=0x%X, ch_wid_supp=%d, flags=0x%X\n",
|
|
cfg_cmd.chains, cfg_cmd.sgi_ch_width_supp, cfg_cmd.flags);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, mpdu_len=%d, no_ht_rate=0x%X, tx_op=%d\n",
|
|
cfg_cmd.max_mpdu_len, cfg_cmd.non_ht_rates, cfg_cmd.max_tx_op);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, ht_rate[0][0]=0x%X, ht_rate[1][0]=0x%X\n",
|
|
cfg_cmd.ht_rates[0][0], cfg_cmd.ht_rates[1][0]);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, ht_rate[0][1]=0x%X, ht_rate[1][1]=0x%X\n",
|
|
cfg_cmd.ht_rates[0][1], cfg_cmd.ht_rates[1][1]);
|
|
IWL_DEBUG_RATE(mvm, "TLC CONFIG CMD, ht_rate[0][2]=0x%X, ht_rate[1][2]=0x%X\n",
|
|
cfg_cmd.ht_rates[0][2], cfg_cmd.ht_rates[1][2]);
|
|
if (cmd_ver == 4) {
|
|
ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC,
|
|
sizeof(cfg_cmd), &cfg_cmd);
|
|
} else if (cmd_ver < 4) {
|
|
struct iwl_tlc_config_cmd_v3 cfg_cmd_v3 = {
|
|
.sta_id = cfg_cmd.sta_id,
|
|
.max_ch_width = cfg_cmd.max_ch_width,
|
|
.mode = cfg_cmd.mode,
|
|
.chains = cfg_cmd.chains,
|
|
.amsdu = !!cfg_cmd.max_mpdu_len,
|
|
.flags = cfg_cmd.flags,
|
|
.non_ht_rates = cfg_cmd.non_ht_rates,
|
|
.ht_rates[0][0] = cfg_cmd.ht_rates[0][0],
|
|
.ht_rates[0][1] = cfg_cmd.ht_rates[0][1],
|
|
.ht_rates[1][0] = cfg_cmd.ht_rates[1][0],
|
|
.ht_rates[1][1] = cfg_cmd.ht_rates[1][1],
|
|
.sgi_ch_width_supp = cfg_cmd.sgi_ch_width_supp,
|
|
.max_mpdu_len = cfg_cmd.max_mpdu_len,
|
|
};
|
|
|
|
u16 cmd_size = sizeof(cfg_cmd_v3);
|
|
|
|
/* In old versions of the API the struct is 4 bytes smaller */
|
|
if (iwl_fw_lookup_cmd_ver(mvm->fw,
|
|
WIDE_ID(DATA_PATH_GROUP,
|
|
TLC_MNG_CONFIG_CMD), 0) < 3)
|
|
cmd_size -= 4;
|
|
|
|
ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC, cmd_size,
|
|
&cfg_cmd_v3);
|
|
} else {
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
if (ret)
|
|
IWL_ERR(mvm, "Failed to send rate scale config (%d)\n", ret);
|
|
}
|
|
|
|
int rs_fw_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
|
|
bool enable)
|
|
{
|
|
/* TODO: need to introduce a new FW cmd since LQ cmd is not relevant */
|
|
IWL_DEBUG_RATE(mvm, "tx protection - not implemented yet.\n");
|
|
return 0;
|
|
}
|
|
|
|
void iwl_mvm_rs_add_sta_link(struct iwl_mvm *mvm,
|
|
struct iwl_mvm_link_sta *link_sta)
|
|
{
|
|
struct iwl_lq_sta_rs_fw *lq_sta;
|
|
|
|
lq_sta = &link_sta->lq_sta.rs_fw;
|
|
|
|
lq_sta->pers.drv = mvm;
|
|
lq_sta->pers.sta_id = link_sta->sta_id;
|
|
lq_sta->pers.chains = 0;
|
|
memset(lq_sta->pers.chain_signal, 0,
|
|
sizeof(lq_sta->pers.chain_signal));
|
|
lq_sta->pers.last_rssi = S8_MIN;
|
|
lq_sta->last_rate_n_flags = 0;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
lq_sta->pers.dbg_fixed_rate = 0;
|
|
#endif
|
|
}
|
|
|
|
void iwl_mvm_rs_add_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta)
|
|
{
|
|
unsigned int link_id;
|
|
|
|
IWL_DEBUG_RATE(mvm, "create station rate scale window\n");
|
|
|
|
for (link_id = 0; link_id < ARRAY_SIZE(mvmsta->link); link_id++) {
|
|
struct iwl_mvm_link_sta *link =
|
|
rcu_dereference_protected(mvmsta->link[link_id],
|
|
lockdep_is_held(&mvm->mutex));
|
|
if (!link)
|
|
continue;
|
|
|
|
iwl_mvm_rs_add_sta_link(mvm, link);
|
|
}
|
|
}
|