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qtnfmac: allow to control DFS slave radar detection

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In ETSI region DFS slave device can operate in two modes on DFS channels:
 - do on-channel radar detection and use higher Tx power
 - don't do radar detection and use lower Tx power as a consequence

Allow user to control that behavior through qtnfmac module parameter.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Igor Mitsyanko 2019-04-09 07:35:10 +00:00 committed by Kalle Valo
parent 4f87d486fa
commit 888f1564a2
6 changed files with 19 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
View File

@ -1008,7 +1008,7 @@ static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy,
pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator,
req->alpha2[0], req->alpha2[1]);
ret = qtnf_cmd_reg_notify(mac, req);
ret = qtnf_cmd_reg_notify(mac, req, qtnf_mac_slave_radar_get(wiphy));
if (ret) {
pr_err("MAC%u: failed to update region to %c%c: %d\n",
mac->macid, req->alpha2[0], req->alpha2[1], ret);

4
drivers/net/wireless/quantenna/qtnfmac/commands.c
View File

@ -2367,7 +2367,8 @@ int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, bool up)
return ret;
}
int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req)
int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req,
bool slave_radar)
{
struct wiphy *wiphy = priv_to_wiphy(mac);
struct qtnf_bus *bus = mac->bus;
@ -2429,6 +2430,7 @@ int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req)
break;
}
cmd->slave_radar = slave_radar;
cmd->num_channels = 0;
for (band = 0; band < NUM_NL80211_BANDS; band++) {

3
drivers/net/wireless/quantenna/qtnfmac/commands.h
View File

@ -57,7 +57,8 @@ int qtnf_cmd_send_disconnect(struct qtnf_vif *vif,
u16 reason_code);
int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif,
bool up);
int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req);
int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req,
bool slave_radar);
int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u16 channel,
struct qtnf_chan_stats *stats);
int qtnf_cmd_send_chan_switch(struct qtnf_vif *vif,

9
drivers/net/wireless/quantenna/qtnfmac/core.c
View File

@ -16,6 +16,10 @@
#define QTNF_DMP_MAX_LEN 48
#define QTNF_PRIMARY_VIF_IDX 0
static bool slave_radar = true;
module_param(slave_radar, bool, 0644);
MODULE_PARM_DESC(slave_radar, "set 0 to disable radar detection in slave mode");
struct qtnf_frame_meta_info {
u8 magic_s;
u8 ifidx;
@ -426,6 +430,11 @@ static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus,
return mac;
}
bool qtnf_mac_slave_radar_get(struct wiphy *wiphy)
{
return slave_radar;
}
static const struct ethtool_ops qtnf_ethtool_ops = {
.get_drvinfo = cfg80211_get_drvinfo,
};

1
drivers/net/wireless/quantenna/qtnfmac/core.h
View File

@ -134,6 +134,7 @@ struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac);
struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac);
void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac);
void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac);
bool qtnf_mac_slave_radar_get(struct wiphy *wiphy);
struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus);
int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
const char *name, unsigned char name_assign_type);

4
drivers/net/wireless/quantenna/qtnfmac/qlink.h
View File

@ -588,6 +588,7 @@ enum qlink_user_reg_hint_type {
* of &enum qlink_user_reg_hint_type.
* @num_channels: number of &struct qlink_tlv_channel in a variable portion of a
* payload.
* @slave_radar: whether slave device should enable radar detection.
* @dfs_region: one of &enum qlink_dfs_regions.
* @info: variable portion of regulatory notifier callback.
*/
@ -598,7 +599,8 @@ struct qlink_cmd_reg_notify {
u8 user_reg_hint_type;
u8 num_channels;
u8 dfs_region;
u8 rsvd[2];
u8 slave_radar;
u8 rsvd[1];
u8 info[0];
} __packed;