#include <linux/wireless.h>
#include <linux/rtnetlink.h>
#include <linux/bitmap.h>
+#include <linux/pm_qos_params.h>
#include <net/net_namespace.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
+#include "driver-ops.h"
#include "rate.h"
#include "mesh.h"
#include "wep.h"
/* be a bit nasty */
new_flags |= (1<<31);
- local->ops->configure_filter(local_to_hw(local),
- changed_flags, &new_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
+ drv_configure_filter(local, changed_flags, &new_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
WARN_ON(new_flags & (1<<31));
ieee80211_configure_filter(local);
}
-/* everything else */
-
-int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_conf conf;
-
- if (WARN_ON(!netif_running(sdata->dev)))
- return 0;
-
- if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
- return -EINVAL;
-
- if (!local->ops->config_interface)
- return 0;
-
- memset(&conf, 0, sizeof(conf));
-
- if (sdata->vif.type == NL80211_IFTYPE_STATION)
- conf.bssid = sdata->u.mgd.bssid;
- else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- conf.bssid = sdata->u.ibss.bssid;
- else if (sdata->vif.type == NL80211_IFTYPE_AP)
- conf.bssid = sdata->dev->dev_addr;
- else if (ieee80211_vif_is_mesh(&sdata->vif)) {
- static const u8 zero[ETH_ALEN] = { 0 };
- conf.bssid = zero;
- } else {
- WARN_ON(1);
- return -EINVAL;
- }
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_AP:
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_MESH_POINT:
- break;
- default:
- /* do not warn to simplify caller in scan.c */
- changed &= ~IEEE80211_IFCC_BEACON_ENABLED;
- if (WARN_ON(changed & IEEE80211_IFCC_BEACON))
- return -EINVAL;
- changed &= ~IEEE80211_IFCC_BEACON;
- break;
- }
-
- if (changed & IEEE80211_IFCC_BEACON_ENABLED) {
- if (local->sw_scanning) {
- conf.enable_beacon = false;
- } else {
- /*
- * Beacon should be enabled, but AP mode must
- * check whether there is a beacon configured.
- */
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_AP:
- conf.enable_beacon =
- !!rcu_dereference(sdata->u.ap.beacon);
- break;
- case NL80211_IFTYPE_ADHOC:
- conf.enable_beacon = !!sdata->u.ibss.probe_resp;
- break;
- case NL80211_IFTYPE_MESH_POINT:
- conf.enable_beacon = true;
- break;
- default:
- /* not reached */
- WARN_ON(1);
- break;
- }
- }
- }
-
- if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
- return -EINVAL;
-
- conf.changed = changed;
-
- return local->ops->config_interface(local_to_hw(local),
- &sdata->vif, &conf);
-}
-
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
{
- struct ieee80211_channel *chan;
+ struct ieee80211_channel *chan, *scan_chan;
int ret = 0;
int power;
enum nl80211_channel_type channel_type;
might_sleep();
- if (local->sw_scanning) {
- chan = local->scan_channel;
+ scan_chan = local->scan_channel;
+
+ if (scan_chan) {
+ chan = scan_chan;
channel_type = NL80211_CHAN_NO_HT;
} else {
chan = local->oper_channel;
changed |= IEEE80211_CONF_CHANGE_CHANNEL;
}
- if (local->sw_scanning)
+ if (scan_chan)
power = chan->max_power;
else
power = local->power_constr_level ?
(chan->max_power - local->power_constr_level) :
chan->max_power;
- if (local->user_power_level)
+ if (local->user_power_level >= 0)
power = min(power, local->user_power_level);
if (local->hw.conf.power_level != power) {
}
if (changed && local->open_count) {
- ret = local->ops->config(local_to_hw(local), changed);
+ ret = drv_config(local, changed);
/*
* Goal:
* HW reconfiguration should never fail, the driver has told
u32 changed)
{
struct ieee80211_local *local = sdata->local;
+ static const u8 zero[ETH_ALEN] = { 0 };
- if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+ if (!changed)
return;
- if (!changed)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ /*
+ * While not associated, claim a BSSID of all-zeroes
+ * so that drivers don't do any weird things with the
+ * BSSID at that time.
+ */
+ if (sdata->vif.bss_conf.assoc)
+ sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid;
+ else
+ sdata->vif.bss_conf.bssid = zero;
+ } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
+ else if (sdata->vif.type == NL80211_IFTYPE_AP)
+ sdata->vif.bss_conf.bssid = sdata->dev->dev_addr;
+ else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ sdata->vif.bss_conf.bssid = zero;
+ } else {
+ WARN_ON(1);
return;
+ }
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ break;
+ default:
+ /* do not warn to simplify caller in scan.c */
+ changed &= ~BSS_CHANGED_BEACON_ENABLED;
+ if (WARN_ON(changed & BSS_CHANGED_BEACON))
+ return;
+ break;
+ }
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ if (local->sw_scanning) {
+ sdata->vif.bss_conf.enable_beacon = false;
+ } else {
+ /*
+ * Beacon should be enabled, but AP mode must
+ * check whether there is a beacon configured.
+ */
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ sdata->vif.bss_conf.enable_beacon =
+ !!rcu_dereference(sdata->u.ap.beacon);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ sdata->vif.bss_conf.enable_beacon =
+ !!rcu_dereference(sdata->u.ibss.presp);
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ sdata->vif.bss_conf.enable_beacon = true;
+ break;
+ default:
+ /* not reached */
+ WARN_ON(1);
+ break;
+ }
+ }
+ }
- if (local->ops->bss_info_changed)
- local->ops->bss_info_changed(local_to_hw(local),
- &sdata->vif,
- &sdata->vif.bss_conf,
- changed);
+ drv_bss_info_changed(local, &sdata->vif,
+ &sdata->vif.bss_conf, changed);
+
+ /* DEPRECATED */
+ local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int;
}
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = (struct ieee80211_local *) data;
struct sk_buff *skb;
- struct ieee80211_rx_status rx_status;
struct ieee80211_ra_tid *ra_tid;
while ((skb = skb_dequeue(&local->skb_queue)) ||
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
switch (skb->pkt_type) {
case IEEE80211_RX_MSG:
- /* status is in skb->cb */
- memcpy(&rx_status, skb->cb, sizeof(rx_status));
/* Clear skb->pkt_type in order to not confuse kernel
* netstack. */
skb->pkt_type = 0;
- __ieee80211_rx(local_to_hw(local), skb, &rx_status);
+ ieee80211_rx(local_to_hw(local), skb);
break;
case IEEE80211_TX_STATUS_MSG:
skb->pkt_type = 0;
}
}
-/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
- * make a prepared TX frame (one that has been given to hw) to look like brand
- * new IEEE 802.11 frame that is ready to go through TX processing again.
- */
-static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
- struct ieee80211_key *key,
- struct sk_buff *skb)
-{
- unsigned int hdrlen, iv_len, mic_len;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
- if (!key)
- goto no_key;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- iv_len = WEP_IV_LEN;
- mic_len = WEP_ICV_LEN;
- break;
- case ALG_TKIP:
- iv_len = TKIP_IV_LEN;
- mic_len = TKIP_ICV_LEN;
- break;
- case ALG_CCMP:
- iv_len = CCMP_HDR_LEN;
- mic_len = CCMP_MIC_LEN;
- break;
- default:
- goto no_key;
- }
-
- if (skb->len >= hdrlen + mic_len &&
- !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- skb_trim(skb, skb->len - mic_len);
- if (skb->len >= hdrlen + iv_len) {
- memmove(skb->data + iv_len, skb->data, hdrlen);
- hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len);
- }
-
-no_key:
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
- memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data,
- hdrlen - IEEE80211_QOS_CTL_LEN);
- skb_pull(skb, IEEE80211_QOS_CTL_LEN);
- }
-}
-
static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
struct sta_info *sta,
struct sk_buff *skb)
{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
sta->tx_filtered_count++;
/*
*/
if (test_sta_flags(sta, WLAN_STA_PS) &&
skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
- ieee80211_remove_tx_extra(local, sta->key, skb);
skb_queue_tail(&sta->tx_filtered, skb);
return;
}
- if (!test_sta_flags(sta, WLAN_STA_PS) && !skb->requeue) {
+ if (!test_sta_flags(sta, WLAN_STA_PS) &&
+ !(info->flags & IEEE80211_TX_INTFL_RETRIED)) {
/* Software retry the packet once */
- skb->requeue = 1;
- ieee80211_remove_tx_extra(local, sta->key, skb);
- dev_queue_xmit(skb);
+ info->flags |= IEEE80211_TX_INTFL_RETRIED;
+ ieee80211_add_pending_skb(local, skb);
return;
}
}
EXPORT_SYMBOL(ieee80211_tx_status);
+static void ieee80211_restart_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, restart_work);
+
+ rtnl_lock();
+ ieee80211_reconfig(local);
+ rtnl_unlock();
+}
+
+void ieee80211_restart_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ /* use this reason, __ieee80211_resume will unblock it */
+ ieee80211_stop_queues_by_reason(hw,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+ schedule_work(&local->restart_work);
+}
+EXPORT_SYMBOL(ieee80211_restart_hw);
+
struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
const struct ieee80211_ops *ops)
{
* +-------------------------+
*
*/
- priv_size = ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
- priv_data_len;
+ priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len;
wiphy = wiphy_new(&mac80211_config_ops, priv_size);
return NULL;
wiphy->privid = mac80211_wiphy_privid;
- wiphy->max_scan_ssids = 4;
+
/* Yes, putting cfg80211_bss into ieee80211_bss is a hack */
wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
sizeof(struct cfg80211_bss);
local = wiphy_priv(wiphy);
+
local->hw.wiphy = wiphy;
- local->hw.priv = (char *)local +
- ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+ local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
BUG_ON(!ops->tx);
BUG_ON(!ops->start);
/* set up some defaults */
local->hw.queues = 1;
local->hw.max_rates = 1;
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- local->hw.conf.long_frame_max_tx_count = 4;
- local->hw.conf.short_frame_max_tx_count = 7;
+ local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+ local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
local->hw.conf.radio_enabled = true;
+ local->user_power_level = -1;
INIT_LIST_HEAD(&local->interfaces);
mutex_init(&local->iflist_mtx);
+ mutex_init(&local->scan_mtx);
spin_lock_init(&local->key_lock);
INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
+ INIT_WORK(&local->restart_work, ieee80211_restart_work);
+
INIT_WORK(&local->dynamic_ps_enable_work,
ieee80211_dynamic_ps_enable_work);
INIT_WORK(&local->dynamic_ps_disable_work,
setup_timer(&local->dynamic_ps_timer,
ieee80211_dynamic_ps_timer, (unsigned long) local);
- for (i = 0; i < IEEE80211_MAX_AMPDU_QUEUES; i++)
- local->ampdu_ac_queue[i] = -1;
- /* using an s8 won't work with more than that */
- BUILD_BUG_ON(IEEE80211_MAX_AMPDU_QUEUES > 127);
-
sta_info_init(local);
+ for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
+ skb_queue_head_init(&local->pending[i]);
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
(unsigned long)local);
tasklet_disable(&local->tx_pending_tasklet);
skb_queue_head_init(&local->skb_queue);
skb_queue_head_init(&local->skb_queue_unreliable);
+ spin_lock_init(&local->ampdu_lock);
+
return local_to_hw(local);
}
EXPORT_SYMBOL(ieee80211_alloc_hw);
enum ieee80211_band band;
struct net_device *mdev;
struct ieee80211_master_priv *mpriv;
- int channels, i, j;
+ int channels, i, j, max_bitrates;
+ bool supp_ht;
+ static const u32 cipher_suites[] = {
+ WLAN_CIPHER_SUITE_WEP40,
+ WLAN_CIPHER_SUITE_WEP104,
+ WLAN_CIPHER_SUITE_TKIP,
+ WLAN_CIPHER_SUITE_CCMP,
+
+ /* keep last -- depends on hw flags! */
+ WLAN_CIPHER_SUITE_AES_CMAC
+ };
/*
* generic code guarantees at least one band,
* that hw.conf.channel is assigned
*/
channels = 0;
+ max_bitrates = 0;
+ supp_ht = false;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[band];
- if (sband && !local->oper_channel) {
+ if (!sband)
+ continue;
+ if (!local->oper_channel) {
/* init channel we're on */
local->hw.conf.channel =
- local->oper_channel =
- local->scan_channel = &sband->channels[0];
+ local->oper_channel = &sband->channels[0];
+ local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
}
- if (sband)
- channels += sband->n_channels;
+ channels += sband->n_channels;
+
+ if (max_bitrates < sband->n_bitrates)
+ max_bitrates = sband->n_bitrates;
+ supp_ht = supp_ht || sband->ht_cap.ht_supported;
}
local->int_scan_req.n_channels = channels;
/* mac80211 always supports monitor */
local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+ if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+ local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+ else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
+ local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
+
+ /*
+ * Calculate scan IE length -- we need this to alloc
+ * memory and to subtract from the driver limit. It
+ * includes the (extended) supported rates and HT
+ * information -- SSID is the driver's responsibility.
+ */
+ local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */
+ if (supp_ht)
+ local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
+
+ if (!local->ops->hw_scan) {
+ /* For hw_scan, driver needs to set these up. */
+ local->hw.wiphy->max_scan_ssids = 4;
+ local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+ }
+
+ /*
+ * If the driver supports any scan IEs, then assume the
+ * limit includes the IEs mac80211 will add, otherwise
+ * leave it at zero and let the driver sort it out; we
+ * still pass our IEs to the driver but userspace will
+ * not be allowed to in that case.
+ */
+ if (local->hw.wiphy->max_scan_ie_len)
+ local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len;
+
+ local->hw.wiphy->cipher_suites = cipher_suites;
+ local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+ if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
+ local->hw.wiphy->n_cipher_suites--;
+
result = wiphy_register(local->hw.wiphy);
if (result < 0)
goto fail_wiphy_register;
*/
if (hw->queues > IEEE80211_MAX_QUEUES)
hw->queues = IEEE80211_MAX_QUEUES;
- if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES)
- hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES;
- if (hw->queues < 4)
- hw->ampdu_queues = 0;
mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
"wmaster%d", ieee80211_master_setup,
debugfs_hw_add(local);
- if (local->hw.conf.beacon_int < 10)
- local->hw.conf.beacon_int = 100;
-
if (local->hw.max_listen_interval == 0)
local->hw.max_listen_interval = 1;
if (result < 0)
goto fail_sta_info;
+ result = ieee80211_wep_init(local);
+ if (result < 0) {
+ printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n",
+ wiphy_name(local->hw.wiphy), result);
+ goto fail_wep;
+ }
+
rtnl_lock();
result = dev_alloc_name(local->mdev, local->mdev->name);
if (result < 0)
goto fail_rate;
}
- result = ieee80211_wep_init(local);
-
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n",
- wiphy_name(local->hw.wiphy), result);
- goto fail_wep;
- }
-
/* add one default STA interface if supported */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) {
result = ieee80211_if_add(local, "wlan%d", NULL,
}
}
+ local->network_latency_notifier.notifier_call =
+ ieee80211_max_network_latency;
+ result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
+ &local->network_latency_notifier);
+
+ if (result) {
+ rtnl_lock();
+ goto fail_pm_qos;
+ }
+
return 0;
-fail_wep:
- rate_control_deinitialize(local);
-fail_rate:
+ fail_pm_qos:
+ ieee80211_led_exit(local);
+ ieee80211_remove_interfaces(local);
+ fail_rate:
unregister_netdevice(local->mdev);
local->mdev = NULL;
-fail_dev:
+ fail_dev:
rtnl_unlock();
+ ieee80211_wep_free(local);
+ fail_wep:
sta_info_stop(local);
-fail_sta_info:
+ fail_sta_info:
debugfs_hw_del(local);
destroy_workqueue(local->hw.workqueue);
-fail_workqueue:
+ fail_workqueue:
if (local->mdev)
free_netdev(local->mdev);
-fail_mdev_alloc:
+ fail_mdev_alloc:
wiphy_unregister(local->hw.wiphy);
-fail_wiphy_register:
+ fail_wiphy_register:
kfree(local->int_scan_req.channels);
return result;
}
tasklet_kill(&local->tx_pending_tasklet);
tasklet_kill(&local->tasklet);
+ pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
+ &local->network_latency_notifier);
+
rtnl_lock();
/*
struct ieee80211_local *local = hw_to_local(hw);
mutex_destroy(&local->iflist_mtx);
+ mutex_destroy(&local->scan_mtx);
wiphy_free(local->hw.wiphy);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff