return 0;
}
+static int ath10k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
+{
+ switch ((mcs_map >> (2 * nss)) & 0x3) {
+ case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
+ case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
+ case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
+ }
+ return 0;
+}
+
/**********/
/* Crypto */
/**********/
return ret;
}
-/* Check if only one bit set */
-static int ath10k_check_single_mask(u32 mask)
-{
- int bit;
-
- bit = ffs(mask);
- if (!bit)
- return 0;
-
- mask &= ~BIT(bit - 1);
- if (mask)
- return 2;
-
- return 1;
-}
-
static bool
-ath10k_default_bitrate_mask(struct ath10k *ar,
- enum ieee80211_band band,
- const struct cfg80211_bitrate_mask *mask)
+ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
+ enum ieee80211_band band,
+ const struct cfg80211_bitrate_mask *mask)
{
- u32 legacy = 0x00ff;
- u8 ht = 0xff, i;
- u16 vht = 0x3ff;
- u16 nrf = ar->num_rf_chains;
-
- if (ar->cfg_tx_chainmask)
- nrf = get_nss_from_chainmask(ar->cfg_tx_chainmask);
+ int num_rates = 0;
+ int i;
- switch (band) {
- case IEEE80211_BAND_2GHZ:
- legacy = 0x00fff;
- vht = 0;
- break;
- case IEEE80211_BAND_5GHZ:
- break;
- default:
- return false;
- }
+ num_rates += hweight32(mask->control[band].legacy);
- if (mask->control[band].legacy != legacy)
- return false;
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
+ num_rates += hweight8(mask->control[band].ht_mcs[i]);
- for (i = 0; i < nrf; i++)
- if (mask->control[band].ht_mcs[i] != ht)
- return false;
-
- for (i = 0; i < nrf; i++)
- if (mask->control[band].vht_mcs[i] != vht)
- return false;
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
+ num_rates += hweight16(mask->control[band].vht_mcs[i]);
- return true;
+ return num_rates == 1;
}
static bool
-ath10k_bitrate_mask_nss(const struct cfg80211_bitrate_mask *mask,
- enum ieee80211_band band,
- u8 *fixed_nss)
-{
- int ht_nss = 0, vht_nss = 0, i;
+ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
+ enum ieee80211_band band,
+ const struct cfg80211_bitrate_mask *mask,
+ int *nss)
+{
+ struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
+ u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
+ u8 ht_nss_mask = 0;
+ u8 vht_nss_mask = 0;
+ int i;
- /* check legacy */
- if (ath10k_check_single_mask(mask->control[band].legacy))
+ if (mask->control[band].legacy)
return false;
- /* check HT */
- for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
- if (mask->control[band].ht_mcs[i] == 0xff)
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
+ if (mask->control[band].ht_mcs[i] == 0)
continue;
- else if (mask->control[band].ht_mcs[i] == 0x00)
- break;
-
- return false;
+ else if (mask->control[band].ht_mcs[i] ==
+ sband->ht_cap.mcs.rx_mask[i])
+ ht_nss_mask |= BIT(i);
+ else
+ return false;
}
- ht_nss = i;
-
- /* check VHT */
- for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
- if (mask->control[band].vht_mcs[i] == 0x03ff)
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
+ if (mask->control[band].vht_mcs[i] == 0)
continue;
- else if (mask->control[band].vht_mcs[i] == 0x0000)
- break;
-
- return false;
+ else if (mask->control[band].vht_mcs[i] ==
+ ath10k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
+ vht_nss_mask |= BIT(i);
+ else
+ return false;
}
- vht_nss = i;
-
- if (ht_nss > 0 && vht_nss > 0)
+ if (ht_nss_mask != vht_nss_mask)
return false;
- if (ht_nss)
- *fixed_nss = ht_nss;
- else if (vht_nss)
- *fixed_nss = vht_nss;
- else
+ if (ht_nss_mask == 0)
return false;
- return true;
-}
-
-static bool
-ath10k_bitrate_mask_correct(const struct cfg80211_bitrate_mask *mask,
- enum ieee80211_band band,
- enum wmi_rate_preamble *preamble)
-{
- int legacy = 0, ht = 0, vht = 0, i;
-
- *preamble = WMI_RATE_PREAMBLE_OFDM;
-
- /* check legacy */
- legacy = ath10k_check_single_mask(mask->control[band].legacy);
- if (legacy > 1)
- return false;
-
- /* check HT */
- for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
- ht += ath10k_check_single_mask(mask->control[band].ht_mcs[i]);
- if (ht > 1)
- return false;
-
- /* check VHT */
- for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
- vht += ath10k_check_single_mask(mask->control[band].vht_mcs[i]);
- if (vht > 1)
- return false;
-
- /* Currently we support only one fixed_rate */
- if ((legacy + ht + vht) != 1)
+ if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
return false;
- if (ht)
- *preamble = WMI_RATE_PREAMBLE_HT;
- else if (vht)
- *preamble = WMI_RATE_PREAMBLE_VHT;
+ *nss = fls(ht_nss_mask);
return true;
}
-static bool
-ath10k_bitrate_mask_rate(struct ath10k *ar,
- const struct cfg80211_bitrate_mask *mask,
- enum ieee80211_band band,
- u8 *fixed_rate,
- u8 *fixed_nss)
+static int
+ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
+ enum ieee80211_band band,
+ const struct cfg80211_bitrate_mask *mask,
+ u8 *rate, u8 *nss)
{
- struct ieee80211_supported_band *sband;
- u8 rate = 0, pream = 0, nss = 0, i;
- enum wmi_rate_preamble preamble;
-
- /* Check if single rate correct */
- if (!ath10k_bitrate_mask_correct(mask, band, &preamble))
- return false;
-
- pream = preamble;
-
- switch (preamble) {
- case WMI_RATE_PREAMBLE_CCK:
- case WMI_RATE_PREAMBLE_OFDM:
- i = ffs(mask->control[band].legacy) - 1;
- sband = &ar->mac.sbands[band];
-
- if (WARN_ON(i >= sband->n_bitrates))
- return false;
+ struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
+ int rate_idx;
+ int i;
+ u16 bitrate;
+ u8 preamble;
+ u8 hw_rate;
- rate = sband->bitrates[i].hw_value;
- break;
- case WMI_RATE_PREAMBLE_HT:
- for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
- if (mask->control[band].ht_mcs[i])
- break;
+ if (hweight32(mask->control[band].legacy) == 1) {
+ rate_idx = ffs(mask->control[band].legacy) - 1;
- if (i == IEEE80211_HT_MCS_MASK_LEN)
- return false;
+ hw_rate = sband->bitrates[rate_idx].hw_value;
+ bitrate = sband->bitrates[rate_idx].bitrate;
- rate = ffs(mask->control[band].ht_mcs[i]) - 1;
- nss = i;
- break;
- case WMI_RATE_PREAMBLE_VHT:
- for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
- if (mask->control[band].vht_mcs[i])
- break;
+ if (ath10k_mac_bitrate_is_cck(bitrate))
+ preamble = WMI_RATE_PREAMBLE_CCK;
+ else
+ preamble = WMI_RATE_PREAMBLE_OFDM;
- if (i == NL80211_VHT_NSS_MAX)
- return false;
+ *nss = 1;
+ *rate = preamble << 6 |
+ (*nss - 1) << 4 |
+ hw_rate << 0;
- rate = ffs(mask->control[band].vht_mcs[i]) - 1;
- nss = i;
- break;
+ return 0;
}
- *fixed_nss = nss + 1;
- nss <<= 4;
- pream <<= 6;
-
- ath10k_dbg(ar, ATH10K_DBG_MAC, "mac fixed rate pream 0x%02x nss 0x%02x rate 0x%02x\n",
- pream, nss, rate);
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
+ if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
+ *nss = i + 1;
+ *rate = WMI_RATE_PREAMBLE_HT << 6 |
+ (*nss - 1) << 4 |
+ (ffs(mask->control[band].ht_mcs[i]) - 1);
- *fixed_rate = pream | nss | rate;
+ return 0;
+ }
+ }
- return true;
-}
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
+ if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
+ *nss = i + 1;
+ *rate = WMI_RATE_PREAMBLE_VHT << 6 |
+ (*nss - 1) << 4 |
+ (ffs(mask->control[band].vht_mcs[i]) - 1);
-static bool ath10k_get_fixed_rate_nss(struct ath10k *ar,
- const struct cfg80211_bitrate_mask *mask,
- enum ieee80211_band band,
- u8 *fixed_rate,
- u8 *fixed_nss)
-{
- /* First check full NSS mask, if we can simply limit NSS */
- if (ath10k_bitrate_mask_nss(mask, band, fixed_nss))
- return true;
+ return 0;
+ }
+ }
- /* Next Check single rate is set */
- return ath10k_bitrate_mask_rate(ar, mask, band, fixed_rate, fixed_nss);
+ return -EINVAL;
}
-static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
- u8 fixed_rate,
- u8 fixed_nss,
- u8 force_sgi)
+static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
+ u8 rate, u8 nss, u8 sgi)
{
struct ath10k *ar = arvif->ar;
u32 vdev_param;
- int ret = 0;
-
- mutex_lock(&ar->conf_mutex);
-
- if (arvif->fixed_rate == fixed_rate &&
- arvif->fixed_nss == fixed_nss &&
- arvif->force_sgi == force_sgi)
- goto exit;
+ int ret;
- if (fixed_rate == WMI_FIXED_RATE_NONE)
- ath10k_dbg(ar, ATH10K_DBG_MAC, "mac disable fixed bitrate mask\n");
+ lockdep_assert_held(&ar->conf_mutex);
- if (force_sgi)
- ath10k_dbg(ar, ATH10K_DBG_MAC, "mac force sgi\n");
+ ath10k_dbg(ar, ATH10K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02hhx nss %hhu sgi %hhu\n",
+ arvif->vdev_id, rate, nss, sgi);
vdev_param = ar->wmi.vdev_param->fixed_rate;
- ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
- vdev_param, fixed_rate);
+ ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
if (ret) {
ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
- fixed_rate, ret);
- ret = -EINVAL;
- goto exit;
+ rate, ret);
+ return ret;
}
- arvif->fixed_rate = fixed_rate;
-
vdev_param = ar->wmi.vdev_param->nss;
- ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
- vdev_param, fixed_nss);
-
+ ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
if (ret) {
- ath10k_warn(ar, "failed to set fixed nss param %d: %d\n",
- fixed_nss, ret);
- ret = -EINVAL;
- goto exit;
+ ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
+ return ret;
}
- arvif->fixed_nss = fixed_nss;
-
vdev_param = ar->wmi.vdev_param->sgi;
- ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
- force_sgi);
-
+ ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
if (ret) {
- ath10k_warn(ar, "failed to set sgi param %d: %d\n",
- force_sgi, ret);
- ret = -EINVAL;
- goto exit;
+ ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
+ return ret;
}
- arvif->force_sgi = force_sgi;
-
-exit:
- mutex_unlock(&ar->conf_mutex);
- return ret;
+ return 0;
}
-static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- const struct cfg80211_bitrate_mask *mask)
+static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const struct cfg80211_bitrate_mask *mask)
{
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct cfg80211_chan_def def;
struct ath10k *ar = arvif->ar;
enum ieee80211_band band;
- u8 fixed_rate = WMI_FIXED_RATE_NONE;
- u8 fixed_nss = ar->num_rf_chains;
- u8 force_sgi;
+ u8 rate;
+ u8 nss;
+ u8 sgi;
+ int single_nss;
+ int ret;
if (ath10k_mac_vif_chan(vif, &def))
return -EPERM;
- if (ar->cfg_tx_chainmask)
- fixed_nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
-
band = def.chan->band;
- force_sgi = mask->control[band].gi;
- if (force_sgi == NL80211_TXRATE_FORCE_LGI)
+ sgi = mask->control[band].gi;
+ if (sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
- if (!ath10k_default_bitrate_mask(ar, band, mask)) {
- if (!ath10k_get_fixed_rate_nss(ar, mask, band,
- &fixed_rate,
- &fixed_nss))
- return -EINVAL;
+ if (ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask)) {
+ ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
+ &rate, &nss);
+ if (ret) {
+ ath10k_warn(ar, "failed to get single rate for vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+ } else if (ath10k_mac_bitrate_mask_get_single_nss(ar, band, mask,
+ &single_nss)) {
+ rate = WMI_FIXED_RATE_NONE;
+ nss = single_nss;
+ } else {
+ rate = WMI_FIXED_RATE_NONE;
+ nss = ar->num_rf_chains;
}
- if (fixed_rate == WMI_FIXED_RATE_NONE && force_sgi) {
- ath10k_warn(ar, "failed to force SGI usage for default rate settings\n");
- return -EINVAL;
+ mutex_lock(&ar->conf_mutex);
+
+ ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi);
+ if (ret) {
+ ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ goto exit;
}
- return ath10k_set_fixed_rate_param(arvif, fixed_rate,
- fixed_nss, force_sgi);
+exit:
+ mutex_unlock(&ar->conf_mutex);
+
+ return ret;
}
static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
.get_antenna = ath10k_get_antenna,
.reconfig_complete = ath10k_reconfig_complete,
.get_survey = ath10k_get_survey,
- .set_bitrate_mask = ath10k_set_bitrate_mask,
+ .set_bitrate_mask = ath10k_mac_op_set_bitrate_mask,
.sta_rc_update = ath10k_sta_rc_update,
.get_tsf = ath10k_get_tsf,
.ampdu_action = ath10k_ampdu_action,
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff