ath10k: implement mesh support
Add support for mesh to ath10k. We simply use an AP virtual interface
in the firmware in order to enable beaconing without TSF adoption, and
use the raw (802.11) transmit mode.
Due to firmware limitations, the firmware must operate in raw
(non-native 802.11) mode. As this is configured at firmware init time,
a new "rawmode" modparam is added, and mesh interfaces are available
only if rawmode=true. The firmware must advertise support for rawmode;
tested successfully with firmware 10.2.4.70.6-2.
When the module is loaded with (newly implemented) modparam rawmode=1, it
will enable operating an open mesh STA via something like the following:
ip link set wlan0 down
iw dev wlan0 set type mp
ip link set wlan0 up
iw dev wlan0 set freq 5745 80 5775
iw dev wlan0 mesh join mesh-vht
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 6e5033b..09a74a8 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -34,16 +34,19 @@
static unsigned int ath10k_cryptmode_param;
static bool uart_print;
static bool skip_otp;
+static bool rawmode;
module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
module_param_named(cryptmode, ath10k_cryptmode_param, uint, 0644);
module_param(uart_print, bool, 0644);
module_param(skip_otp, bool, 0644);
+module_param(rawmode, bool, 0644);
MODULE_PARM_DESC(debug_mask, "Debugging mask");
MODULE_PARM_DESC(uart_print, "Uart target debugging");
MODULE_PARM_DESC(skip_otp, "Skip otp failure for calibration in testmode");
MODULE_PARM_DESC(cryptmode, "Crypto mode: 0-hardware, 1-software");
+MODULE_PARM_DESC(rawmode, "Use raw 802.11 frame datapath");
static const struct ath10k_hw_params ath10k_hw_params_list[] = {
{
@@ -1122,6 +1125,15 @@
ar->htt.max_num_amsdu = ATH10K_HTT_MAX_NUM_AMSDU_DEFAULT;
ar->htt.max_num_ampdu = ATH10K_HTT_MAX_NUM_AMPDU_DEFAULT;
+ if (rawmode) {
+ if (!test_bit(ATH10K_FW_FEATURE_RAW_MODE_SUPPORT,
+ ar->fw_features)) {
+ ath10k_err(ar, "rawmode = 1 requires support from firmware");
+ return -EINVAL;
+ }
+ set_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags);
+ }
+
if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
ar->wmi.rx_decap_mode = ATH10K_HW_TXRX_RAW;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 80efcc8..1cda4f9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4211,6 +4211,14 @@
case NL80211_IFTYPE_ADHOC:
arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
break;
+ case NL80211_IFTYPE_MESH_POINT:
+ if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
+ ret = -EINVAL;
+ ath10k_warn(ar, "must load driver with rawmode=1 to add mesh interfaces\n");
+ goto err;
+ }
+ arvif->vdev_type = WMI_VDEV_TYPE_AP;
+ break;
case NL80211_IFTYPE_AP:
arvif->vdev_type = WMI_VDEV_TYPE_AP;
@@ -4251,6 +4259,7 @@
* become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
*/
if (vif->type == NL80211_IFTYPE_ADHOC ||
+ vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_AP) {
arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
IEEE80211_MAX_FRAME_LEN,
@@ -4590,6 +4599,13 @@
if (ret)
ath10k_warn(ar, "failed to update beacon template: %d\n",
ret);
+
+ if (ieee80211_vif_is_mesh(vif)) {
+ /* mesh doesn't use SSID but firmware needs it */
+ strncpy(arvif->u.ap.ssid, "mesh",
+ sizeof(arvif->u.ap.ssid));
+ arvif->u.ap.ssid_len = 4;
+ }
}
if (changed & BSS_CHANGED_AP_PROBE_RESP) {
@@ -5329,6 +5345,7 @@
} else if (old_state == IEEE80211_STA_AUTH &&
new_state == IEEE80211_STA_ASSOC &&
(vif->type == NL80211_IFTYPE_AP ||
+ vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_ADHOC)) {
/*
* New association.
@@ -5364,6 +5381,7 @@
} else if (old_state == IEEE80211_STA_ASSOC &&
new_state == IEEE80211_STA_AUTH &&
(vif->type == NL80211_IFTYPE_AP ||
+ vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_ADHOC)) {
/*
* Disassociation.
@@ -6678,6 +6696,9 @@
{
.max = 7,
.types = BIT(NL80211_IFTYPE_AP)
+#ifdef CONFIG_MAC80211_MESH
+ | BIT(NL80211_IFTYPE_MESH_POINT)
+#endif
},
};
@@ -6685,6 +6706,9 @@
{
.max = 8,
.types = BIT(NL80211_IFTYPE_AP)
+#ifdef CONFIG_MAC80211_MESH
+ | BIT(NL80211_IFTYPE_MESH_POINT)
+#endif
},
};
@@ -6722,6 +6746,9 @@
{
.max = 2,
.types = BIT(NL80211_IFTYPE_AP) |
+#ifdef CONFIG_MAC80211_MESH
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO),
},
@@ -6743,6 +6770,9 @@
{
.max = 1,
.types = BIT(NL80211_IFTYPE_AP) |
+#ifdef CONFIG_MAC80211_MESH
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
BIT(NL80211_IFTYPE_P2P_GO),
},
{
@@ -6809,6 +6839,9 @@
{
.max = 16,
.types = BIT(NL80211_IFTYPE_AP)
+#ifdef CONFIG_MAC80211_MESH
+ | BIT(NL80211_IFTYPE_MESH_POINT)
+#endif
},
};
@@ -7033,7 +7066,8 @@
ar->hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_AP);
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT);
ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;