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brcmfmac: add multiple BSS support.

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This patch adds support for multiple BSS interfaces (AP). In
total three AP configurations can be created. In order to use
multiple BSS firmware needs to support it.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hante Meuleman 2014-12-03 21:05:33 +01:00 committed by John W. Linville
parent c4034f43e6
commit a44aa4001a
8 changed files with 274 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

249
drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
View File

@ -520,6 +520,95 @@ brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
ADDR_INDIRECT);
}
static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
{
struct brcmf_mbss_ssid_le mbss_ssid_le;
int bsscfgidx;
int err;
memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr);
if (bsscfgidx < 0)
return bsscfgidx;
mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
mbss_ssid_le.SSID_len = cpu_to_le32(5);
sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
sizeof(mbss_ssid_le));
if (err < 0)
brcmf_err("setting ssid failed %d\n", err);
return err;
}
/**
* brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
*
* @wiphy: wiphy device of new interface.
* @name: name of the new interface.
* @flags: not used.
* @params: contains mac address for AP device.
*/
static
struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
u32 *flags, struct vif_params *params)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
struct brcmf_cfg80211_vif *vif;
int err;
if (brcmf_cfg80211_vif_event_armed(cfg))
return ERR_PTR(-EBUSY);
brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false);
if (IS_ERR(vif))
return (struct wireless_dev *)vif;
brcmf_cfg80211_arm_vif_event(cfg, vif);
err = brcmf_cfg80211_request_ap_if(ifp);
if (err) {
brcmf_cfg80211_arm_vif_event(cfg, NULL);
goto fail;
}
/* wait for firmware event */
err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
msecs_to_jiffies(1500));
brcmf_cfg80211_arm_vif_event(cfg, NULL);
if (!err) {
brcmf_err("timeout occurred\n");
err = -EIO;
goto fail;
}
/* interface created in firmware */
ifp = vif->ifp;
if (!ifp) {
brcmf_err("no if pointer provided\n");
err = -ENOENT;
goto fail;
}
strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
err = brcmf_net_attach(ifp, true);
if (err) {
brcmf_err("Registering netdevice failed\n");
goto fail;
}
return &ifp->vif->wdev;
fail:
brcmf_free_vif(vif);
return ERR_PTR(err);
}
static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
{
enum nl80211_iftype iftype;
@ -545,12 +634,16 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
switch (type) {
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 ERR_PTR(-EOPNOTSUPP);
case NL80211_IFTYPE_AP:
wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
if (!IS_ERR(wdev))
brcmf_cfg80211_update_proto_addr_mode(wdev);
return wdev;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_P2P_DEVICE:
@ -3361,11 +3454,10 @@ static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
}
static s32
brcmf_configure_wpaie(struct net_device *ndev,
brcmf_configure_wpaie(struct brcmf_if *ifp,
const struct brcmf_vs_tlv *wpa_ie,
bool is_rsn_ie)
{
struct brcmf_if *ifp = netdev_priv(ndev);
u32 auth = 0; /* d11 open authentication */
u16 count;
s32 err = 0;
@ -3840,6 +3932,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
enum nl80211_iftype dev_role;
struct brcmf_fil_bss_enable_le bss_enable;
u16 chanspec;
bool mbss;
brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
settings->chandef.chan->hw_value,
@ -3850,6 +3943,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
settings->inactivity_timeout);
dev_role = ifp->vif->wdev.iftype;
mbss = ifp->vif->mbss;
memset(&ssid_le, 0, sizeof(ssid_le));
if (settings->ssid == NULL || settings->ssid_len == 0) {
@ -3869,8 +3963,10 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
}
brcmf_set_mpc(ifp, 0);
brcmf_configure_arp_offload(ifp, false);
if (!mbss) {
brcmf_set_mpc(ifp, 0);
brcmf_configure_arp_offload(ifp, false);
}
/* find the RSN_IE */
rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
@ -3884,13 +3980,16 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
brcmf_dbg(TRACE, "WPA(2) IE is found\n");
if (wpa_ie != NULL) {
/* WPA IE */
err = brcmf_configure_wpaie(ndev, wpa_ie, false);
err = brcmf_configure_wpaie(ifp, wpa_ie, false);
if (err < 0)
goto exit;
} else {
struct brcmf_vs_tlv *tmp_ie;
tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
/* RSN IE */
err = brcmf_configure_wpaie(ndev,
(struct brcmf_vs_tlv *)rsn_ie, true);
err = brcmf_configure_wpaie(ifp, tmp_ie, true);
if (err < 0)
goto exit;
}
@ -3901,45 +4000,53 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
if (err < 0) {
brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
goto exit;
}
if (settings->beacon_interval) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
settings->beacon_interval);
if (!mbss) {
chanspec = chandef_to_chanspec(&cfg->d11inf,
&settings->chandef);
err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
if (err < 0) {
brcmf_err("Beacon Interval Set Error, %d\n", err);
brcmf_err("Set Channel failed: chspec=%d, %d\n",
chanspec, err);
goto exit;
}
}
if (settings->dtim_period) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
settings->dtim_period);
if (settings->beacon_interval) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
settings->beacon_interval);
if (err < 0) {
brcmf_err("Beacon Interval Set Error, %d\n",
err);
goto exit;
}
}
if (settings->dtim_period) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
settings->dtim_period);
if (err < 0) {
brcmf_err("DTIM Interval Set Error, %d\n", err);
goto exit;
}
}
if (dev_role == NL80211_IFTYPE_AP) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
if (err < 0) {
brcmf_err("BRCMF_C_DOWN error %d\n", err);
goto exit;
}
brcmf_fil_iovar_int_set(ifp, "apsta", 0);
}
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
if (err < 0) {
brcmf_err("DTIM Interval Set Error, %d\n", err);
brcmf_err("SET INFRA error %d\n", err);
goto exit;
}
}
if (dev_role == NL80211_IFTYPE_AP) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
if (err < 0) {
brcmf_err("BRCMF_C_DOWN error %d\n", err);
goto exit;
}
brcmf_fil_iovar_int_set(ifp, "apsta", 0);
}
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
if (err < 0) {
brcmf_err("SET INFRA error %d\n", err);
goto exit;
}
if (dev_role == NL80211_IFTYPE_AP) {
if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
brcmf_fil_iovar_int_set(ifp, "mbss", 1);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
if (err < 0) {
brcmf_err("setting AP mode failed %d\n", err);
@ -3984,7 +4091,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
exit:
if (err) {
if ((err) && (!mbss)) {
brcmf_set_mpc(ifp, 1);
brcmf_configure_arp_offload(ifp, true);
}
@ -4005,20 +4112,31 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
/* first to make sure they get processed by fw. */
msleep(400);
if (ifp->vif->mbss) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
return err;
}
memset(&join_params, 0, sizeof(join_params));
err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
&join_params, sizeof(join_params));
if (err < 0)
brcmf_err("SET SSID error (%d)\n", err);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
if (err < 0)
brcmf_err("BRCMF_C_UP error %d\n", err);
brcmf_err("BRCMF_C_DOWN error %d\n", err);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
if (err < 0)
brcmf_err("setting AP mode failed %d\n", err);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
if (err < 0)
brcmf_err("setting INFRA mode failed %d\n", err);
if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
brcmf_fil_iovar_int_set(ifp, "mbss", 0);
/* Bring device back up so it can be used again */
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
if (err < 0)
brcmf_err("BRCMF_C_UP error %d\n", err);
} else {
bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
bss_enable.enable = cpu_to_le32(0);
@ -4370,7 +4488,9 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
enum nl80211_iftype type,
bool pm_block)
{
struct brcmf_cfg80211_vif *vif_walk;
struct brcmf_cfg80211_vif *vif;
bool mbss;
brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
sizeof(*vif));
@ -4386,6 +4506,17 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
brcmf_init_prof(&vif->profile);
if (type == NL80211_IFTYPE_AP) {
mbss = false;
list_for_each_entry(vif_walk, &cfg->vif_list, list) {
if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
mbss = true;
break;
}
}
vif->mbss = mbss;
}
list_add_tail(&vif->list, &cfg->vif_list);
return vif;
}
@ -4628,6 +4759,7 @@ brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
const struct brcmf_event_msg *e, void *data)
{
struct brcmf_if *ifp = netdev_priv(ndev);
static int generation;
u32 event = e->event_code;
u32 reason = e->reason;
@ -4638,6 +4770,8 @@ brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
ndev != cfg_to_ndev(cfg)) {
brcmf_dbg(CONN, "AP mode link down\n");
complete(&cfg->vif_disabled);
if (ifp->vif->mbss)
brcmf_remove_interface(ifp->drvr, ifp->bssidx);
return 0;
}
@ -5429,7 +5563,28 @@ static int brcmf_setup_wiphybands(struct wiphy *wiphy)
return 0;
}
static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC)
},
{
.max = 4,
.types = BIT(NL80211_IFTYPE_AP)
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO)
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_P2P_DEVICE)
}
};
static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
{
.max = 2,
.types = BIT(NL80211_IFTYPE_STATION) |
@ -5450,8 +5605,8 @@ static struct ieee80211_iface_combination brcmf_iface_combos[] = {
{
.max_interfaces = BRCMF_IFACE_MAX_CNT,
.num_different_channels = 1,
.n_limits = ARRAY_SIZE(brcmf_iface_limits),
.limits = brcmf_iface_limits
.n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
.limits = brcmf_iface_limits_sbss,
}
};
@ -5527,6 +5682,10 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
ifc_combo = brcmf_iface_combos[0];
if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
ifc_combo.num_different_channels = 2;
if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
ifc_combo.limits = brcmf_iface_limits_mbss;
}
wiphy->iface_combinations = kmemdup(&ifc_combo,
sizeof(ifc_combo),
GFP_KERNEL);

2
drivers/net/wireless/brcm80211/brcmfmac/cfg80211.h
View File

@ -183,6 +183,7 @@ struct vif_saved_ie {
* @pm_block: power-management blocked.
* @list: linked list.
* @mgmt_rx_reg: registered rx mgmt frame types.
* @mbss: Multiple BSS type, set if not first AP (not relevant for P2P).
*/
struct brcmf_cfg80211_vif {
struct brcmf_if *ifp;
@ -194,6 +195,7 @@ struct brcmf_cfg80211_vif {
struct vif_saved_ie saved_ie;
struct list_head list;
u16 mgmt_rx_reg;
bool mbss;
};
/* association inform */

39
drivers/net/wireless/brcm80211/brcmfmac/core.c
View File

@ -836,7 +836,7 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
return ifp;
}
void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
static void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
{
struct brcmf_if *ifp;
@ -869,6 +869,38 @@ void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
}
}
void brcmf_remove_interface(struct brcmf_pub *drvr, u32 bssidx)
{
if (drvr->iflist[bssidx]) {
brcmf_fws_del_interface(drvr->iflist[bssidx]);
brcmf_del_if(drvr, bssidx);
}
}
int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr)
{
int ifidx;
int bsscfgidx;
bool available;
int highest;
available = false;
bsscfgidx = 2;
highest = 2;
for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
if (drvr->iflist[ifidx]) {
if (drvr->iflist[ifidx]->bssidx == bsscfgidx)
bsscfgidx = highest + 1;
else if (drvr->iflist[ifidx]->bssidx > highest)
highest = drvr->iflist[ifidx]->bssidx;
} else {
available = true;
}
}
return available ? bsscfgidx : -ENOMEM;
}
int brcmf_attach(struct device *dev)
{
struct brcmf_pub *drvr = NULL;
@ -1033,10 +1065,7 @@ void brcmf_detach(struct device *dev)
/* make sure primary interface removed last */
for (i = BRCMF_MAX_IFS-1; i > -1; i--)
if (drvr->iflist[i]) {
brcmf_fws_del_interface(drvr->iflist[i]);
brcmf_del_if(drvr, i);
}
brcmf_remove_interface(drvr, i);
brcmf_cfg80211_detach(drvr->config);

3
drivers/net/wireless/brcm80211/brcmfmac/core.h
View File

@ -175,7 +175,8 @@ char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
char *name, u8 *mac_addr);
void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
void brcmf_remove_interface(struct brcmf_pub *drvr, u32 bssidx);
int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr);
void brcmf_txflowblock_if(struct brcmf_if *ifp,
enum brcmf_netif_stop_reason reason, bool state);
void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp, u8 ifidx,

23
drivers/net/wireless/brcm80211/brcmfmac/feature.c
View File

@ -97,6 +97,28 @@ static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
}
}
/**
* brcmf_feat_iovar_int_set() - determine feature through iovar set.
*
* @ifp: interface to query.
* @id: feature id.
* @name: iovar name.
*/
static void brcmf_feat_iovar_int_set(struct brcmf_if *ifp,
enum brcmf_feat_id id, char *name, u32 val)
{
int err;
err = brcmf_fil_iovar_int_set(ifp, name, val);
if (err == 0) {
brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
ifp->drvr->feat_flags |= BIT(id);
} else {
brcmf_dbg(TRACE, "%s feature check failed: %d\n",
brcmf_feat_names[id], err);
}
}
void brcmf_feat_attach(struct brcmf_pub *drvr)
{
struct brcmf_if *ifp = drvr->iflist[0];
@ -104,6 +126,7 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
if (drvr->bus_if->wowl_supported)
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0);
/* set chip related quirks */
switch (drvr->bus_if->chip) {

1
drivers/net/wireless/brcm80211/brcmfmac/feature.h
View File

@ -22,6 +22,7 @@
* MCHAN: multi-channel for concurrent P2P.
*/
#define BRCMF_FEAT_LIST \
BRCMF_FEAT_DEF(MBSS) \
BRCMF_FEAT_DEF(MCHAN) \
BRCMF_FEAT_DEF(WOWL)
/*

6
drivers/net/wireless/brcm80211/brcmfmac/fweh.c
View File

@ -221,10 +221,8 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data);
if (ifp && ifevent->action == BRCMF_E_IF_DEL) {
brcmf_fws_del_interface(ifp);
brcmf_del_if(drvr, ifevent->bssidx);
}
if (ifp && ifevent->action == BRCMF_E_IF_DEL)
brcmf_remove_interface(drvr, ifevent->bssidx);
}
/**

6
drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
View File

@ -519,4 +519,10 @@ struct brcmf_fil_wowl_pattern_le {
/* u8 pattern[] - Pattern follows the mask is at 'patternoffset' */
};
struct brcmf_mbss_ssid_le {
__le32 bsscfgidx;
__le32 SSID_len;
unsigned char SSID[32];
};
#endif /* FWIL_TYPES_H_ */