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qtnfmac: add DFS offload support

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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: Dmitry Lebed <dlebed@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Dmitry Lebed 2018-03-26 16:36:33 +03:00 committed by Kalle Valo
parent fb7bcb6b46
commit fbb93020b8
3 changed files with 25 additions and 2 deletions
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9
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
View File

@ -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;

11
drivers/net/wireless/quantenna/qtnfmac/event.c
View File

@ -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);

7
drivers/net/wireless/quantenna/qtnfmac/qlink.h
View File

@ -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_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,
};
/**