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brcmfmac: support removing AP interfaces with "interface_remove" 

New firmwares (e.g. 10.10.69.36 for BCM4366) support "interface_remove"
for removing interfaces. Try to use this method on cfg80211 request. In
case of older firmwares (e.g. 7.35.177.56 for BCM43602 as I tested) this
will just result in firmware rejecting command and this won't change any
behavior.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rafał Miłecki 2016-06-29 21:54:27 +02:00 committed by Kalle Valo
parent a63b09872c
commit dba8fbc67e
1 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
View File

@ -785,12 +785,48 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
return err;
}
static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
struct net_device *ndev = wdev->netdev;
struct brcmf_if *ifp = netdev_priv(ndev);
int ret;
int err;
brcmf_cfg80211_arm_vif_event(cfg, ifp->vif);
err = brcmf_fil_bsscfg_data_set(ifp, "interface_remove", NULL, 0);
if (err) {
brcmf_err("interface_remove failed %d\n", err);
goto err_unarm;
}
/* wait for firmware event */
ret = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL,
BRCMF_VIF_EVENT_TIMEOUT);
if (!ret) {
brcmf_err("timeout occurred\n");
err = -EIO;
goto err_unarm;
}
brcmf_remove_interface(ifp, true);
err_unarm:
brcmf_cfg80211_arm_vif_event(cfg, NULL);
return err;
}
static
int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
{
struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
struct net_device *ndev = wdev->netdev;
if (ndev && ndev == cfg_to_ndev(cfg))
return -ENOTSUPP;
/* vif event pending in firmware */
if (brcmf_cfg80211_vif_event_armed(cfg))
return -EBUSY;
@ -807,12 +843,13 @@ int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_MESH_POINT:
return -EOPNOTSUPP;
case NL80211_IFTYPE_AP:
return brcmf_cfg80211_del_ap_iface(wiphy, wdev);
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_P2P_DEVICE: