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Commit fbb93020 authored by Dmitry Lebed's avatar Dmitry Lebed Committed by Kalle Valo
Browse files

qtnfmac: add DFS offload support 



DFS offload support implemented:
- DFS_OFFLOAD feature is advertised depending on HW capabilities
- CAC_STARTED event forwarding from HW implemented
- start_radar_detection() callback now returning -ENOTSUPP
  if DFS_OFFLOAD is enabled

Signed-off-by: default avatarDmitry Lebed <dlebed@quantenna.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent fb7bcb6b

drivers/net/wireless/quantenna/qtnfmac/cfg80211.c

+9 −0
Original line number Diff line number Diff line
@@ -813,6 +813,9 @@ static int qtnf_start_radar_detection(struct wiphy *wiphy, 
	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);

	int ret;



	if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))

		return -ENOTSUPP;



	ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms);

	if (ret)

		pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret);
@@ -909,6 +912,9 @@ struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 
{

	struct wiphy *wiphy;



	if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD)

		qtn_cfg80211_ops.start_radar_detection = NULL;



	wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac));

	if (!wiphy)

		return NULL;
@@ -982,6 +988,9 @@ int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 
			WIPHY_FLAG_AP_UAPSD |

			WIPHY_FLAG_HAS_CHANNEL_SWITCH;



	if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD)

		wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD);



	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |

				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;

drivers/net/wireless/quantenna/qtnfmac/event.c

+11 −0
Original line number Diff line number Diff line
@@ -443,6 +443,17 @@ static int qtnf_event_handle_radar(struct qtnf_vif *vif, 
		cfg80211_cac_event(vif->netdev, &chandef,

				   NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);

		break;

	case QLINK_RADAR_CAC_STARTED:

		if (vif->wdev.cac_started)

			break;



		if (!wiphy_ext_feature_isset(wiphy,

					     NL80211_EXT_FEATURE_DFS_OFFLOAD))

			break;



		cfg80211_cac_event(vif->netdev, &chandef,

				   NL80211_RADAR_CAC_STARTED, GFP_KERNEL);

		break;

	default:

		pr_warn("%s: unhandled radar event %u\n",

			vif->netdev->name, ev->event);

drivers/net/wireless/quantenna/qtnfmac/qlink.h

+5 −2
Original line number Diff line number Diff line
@@ -68,10 +68,12 @@ struct qlink_msg_header { 
 * @QLINK_HW_CAPAB_STA_INACT_TIMEOUT: device implements a logic to kick-out

 *	associated STAs due to inactivity. Inactivity timeout period is taken

 *	from QLINK_CMD_START_AP parameters.

 * @QLINK_HW_CAPAB_DFS_OFFLOAD: device implements DFS offload functionality

 */

enum qlink_hw_capab {

	QLINK_HW_CAPAB_REG_UPDATE		= BIT(0),

	QLINK_HW_CAPAB_STA_INACT_TIMEOUT	= BIT(1),

	QLINK_HW_CAPAB_DFS_OFFLOAD		= BIT(2),

};



enum qlink_iface_type {
@@ -1031,6 +1033,7 @@ enum qlink_radar_event { 
	QLINK_RADAR_CAC_ABORTED,

	QLINK_RADAR_NOP_FINISHED,

	QLINK_RADAR_PRE_CAC_EXPIRED,

	QLINK_RADAR_CAC_STARTED,

};



/**