ath6kl: Fix key configuration to copy at most seq_len from seq
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / main.c
index 30b5a53db9ed061dd6ba60a790a7ccde0ba8fc23..5e5f4ca8f3f079488391bf902897991e3ba3e03d 100644 (file)
 #include "target.h"
 #include "debug.h"
 
-struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 *node_addr)
+struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
 {
+       struct ath6kl *ar = vif->ar;
        struct ath6kl_sta *conn = NULL;
        u8 i, max_conn;
 
-       max_conn = (ar->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
+       max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
 
        for (i = 0; i < max_conn; i++) {
                if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
@@ -393,8 +394,8 @@ out:
 #define AR6003_RESET_CONTROL_ADDRESS 0x00004000
 #define AR6004_RESET_CONTROL_ADDRESS 0x00004000
 
-static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
-                               bool wait_fot_compltn, bool cold_reset)
+void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
+                        bool wait_fot_compltn, bool cold_reset)
 {
        int status = 0;
        u32 address;
@@ -425,102 +426,33 @@ static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
                ath6kl_err("failed to reset target\n");
 }
 
-void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile,
-                         bool get_dbglogs)
-{
-       struct ath6kl *ar = ath6kl_priv(dev);
-       static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-       bool discon_issued;
-
-       netif_stop_queue(dev);
-
-       /* disable the target and the interrupts associated with it */
-       if (test_bit(WMI_READY, &ar->flag)) {
-               discon_issued = (test_bit(CONNECTED, &ar->flag) ||
-                                test_bit(CONNECT_PEND, &ar->flag));
-               ath6kl_disconnect(ar);
-               if (!keep_profile)
-                       ath6kl_init_profile_info(ar);
-
-               del_timer(&ar->disconnect_timer);
-
-               clear_bit(WMI_READY, &ar->flag);
-               ath6kl_wmi_shutdown(ar->wmi);
-               clear_bit(WMI_ENABLED, &ar->flag);
-               ar->wmi = NULL;
-
-               /*
-                * After wmi_shudown all WMI events will be dropped. We
-                * need to cleanup the buffers allocated in AP mode and
-                * give disconnect notification to stack, which usually
-                * happens in the disconnect_event. Simulate the disconnect
-                * event by calling the function directly. Sometimes
-                * disconnect_event will be received when the debug logs
-                * are collected.
-                */
-               if (discon_issued)
-                       ath6kl_disconnect_event(ar, DISCONNECT_CMD,
-                                               (ar->nw_type & AP_NETWORK) ?
-                                               bcast_mac : ar->bssid,
-                                               0, NULL, 0);
-
-               ar->user_key_ctrl = 0;
-
-       } else {
-               ath6kl_dbg(ATH6KL_DBG_TRC,
-                          "%s: wmi is not ready 0x%p 0x%p\n",
-                          __func__, ar, ar->wmi);
-
-               /* Shut down WMI if we have started it */
-               if (test_bit(WMI_ENABLED, &ar->flag)) {
-                       ath6kl_dbg(ATH6KL_DBG_TRC,
-                                  "%s: shut down wmi\n", __func__);
-                       ath6kl_wmi_shutdown(ar->wmi);
-                       clear_bit(WMI_ENABLED, &ar->flag);
-                       ar->wmi = NULL;
-               }
-       }
-
-       if (ar->htc_target) {
-               ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
-               ath6kl_htc_stop(ar->htc_target);
-       }
-
-       /*
-        * Try to reset the device if we can. The driver may have been
-        * configure NOT to reset the target during a debug session.
-        */
-       ath6kl_dbg(ATH6KL_DBG_TRC,
-                  "attempting to reset target on instance destroy\n");
-       ath6kl_reset_device(ar, ar->target_type, true, true);
-}
-
-static void ath6kl_install_static_wep_keys(struct ath6kl *ar)
+static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
 {
        u8 index;
        u8 keyusage;
 
        for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) {
-               if (ar->wep_key_list[index].key_len) {
+               if (vif->wep_key_list[index].key_len) {
                        keyusage = GROUP_USAGE;
-                       if (index == ar->def_txkey_index)
+                       if (index == vif->def_txkey_index)
                                keyusage |= TX_USAGE;
 
-                       ath6kl_wmi_addkey_cmd(ar->wmi,
+                       ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
                                              index,
                                              WEP_CRYPT,
                                              keyusage,
-                                             ar->wep_key_list[index].key_len,
-                                             NULL,
-                                             ar->wep_key_list[index].key,
+                                             vif->wep_key_list[index].key_len,
+                                             NULL, 0,
+                                             vif->wep_key_list[index].key,
                                              KEY_OP_INIT_VAL, NULL,
                                              NO_SYNC_WMIFLAG);
                }
        }
 }
 
-void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel)
+void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
 {
+       struct ath6kl *ar = vif->ar;
        struct ath6kl_req_key *ik;
        int res;
        u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
@@ -529,10 +461,10 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel)
 
        ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
 
-       switch (ar->auth_mode) {
+       switch (vif->auth_mode) {
        case NONE_AUTH:
-               if (ar->prwise_crypto == WEP_CRYPT)
-                       ath6kl_install_static_wep_keys(ar);
+               if (vif->prwise_crypto == WEP_CRYPT)
+                       ath6kl_install_static_wep_keys(vif);
                break;
        case WPA_PSK_AUTH:
        case WPA2_PSK_AUTH:
@@ -544,8 +476,9 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel)
                           "the initial group key for AP mode\n");
                memset(key_rsc, 0, sizeof(key_rsc));
                res = ath6kl_wmi_addkey_cmd(
-                       ar->wmi, ik->key_index, ik->key_type,
-                       GROUP_USAGE, ik->key_len, key_rsc, ik->key,
+                       ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
+                       GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
+                       ik->key,
                        KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
                if (res) {
                        ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
@@ -554,15 +487,16 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel)
                break;
        }
 
-       ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
-       set_bit(CONNECTED, &ar->flag);
-       netif_carrier_on(ar->net_dev);
+       ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
+       set_bit(CONNECTED, &vif->flags);
+       netif_carrier_on(vif->ndev);
 }
 
-void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr,
+void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
                                u8 keymgmt, u8 ucipher, u8 auth,
                                u8 assoc_req_len, u8 *assoc_info)
 {
+       struct ath6kl *ar = vif->ar;
        u8 *ies = NULL, *wpa_ie = NULL, *pos;
        size_t ies_len = 0;
        struct station_info sinfo;
@@ -617,348 +551,32 @@ void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr,
        sinfo.assoc_req_ies_len = ies_len;
        sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
 
-       cfg80211_new_sta(ar->net_dev, mac_addr, &sinfo, GFP_KERNEL);
+       cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
 
-       netif_wake_queue(ar->net_dev);
-}
-
-/* Functions for Tx credit handling */
-void ath6k_credit_init(struct htc_credit_state_info *cred_info,
-                      struct list_head *ep_list,
-                      int tot_credits)
-{
-       struct htc_endpoint_credit_dist *cur_ep_dist;
-       int count;
-
-       cred_info->cur_free_credits = tot_credits;
-       cred_info->total_avail_credits = tot_credits;
-
-       list_for_each_entry(cur_ep_dist, ep_list, list) {
-               if (cur_ep_dist->endpoint == ENDPOINT_0)
-                       continue;
-
-               cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg;
-
-               if (tot_credits > 4)
-                       if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) ||
-                           (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) {
-                               ath6kl_deposit_credit_to_ep(cred_info,
-                                               cur_ep_dist,
-                                               cur_ep_dist->cred_min);
-                               cur_ep_dist->dist_flags |= HTC_EP_ACTIVE;
-                       }
-
-               if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) {
-                       ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist,
-                                                   cur_ep_dist->cred_min);
-                       /*
-                        * Control service is always marked active, it
-                        * never goes inactive EVER.
-                        */
-                       cur_ep_dist->dist_flags |= HTC_EP_ACTIVE;
-               } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC)
-                       /* this is the lowest priority data endpoint */
-                       cred_info->lowestpri_ep_dist = cur_ep_dist->list;
-
-               /*
-                * Streams have to be created (explicit | implicit) for all
-                * kinds of traffic. BE endpoints are also inactive in the
-                * beginning. When BE traffic starts it creates implicit
-                * streams that redistributes credits.
-                *
-                * Note: all other endpoints have minimums set but are
-                * initially given NO credits. credits will be distributed
-                * as traffic activity demands
-                */
-       }
-
-       WARN_ON(cred_info->cur_free_credits <= 0);
-
-       list_for_each_entry(cur_ep_dist, ep_list, list) {
-               if (cur_ep_dist->endpoint == ENDPOINT_0)
-                       continue;
-
-               if (cur_ep_dist->svc_id == WMI_CONTROL_SVC)
-                       cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg;
-               else {
-                       /*
-                        * For the remaining data endpoints, we assume that
-                        * each cred_per_msg are the same. We use a simple
-                        * calculation here, we take the remaining credits
-                        * and determine how many max messages this can
-                        * cover and then set each endpoint's normal value
-                        * equal to 3/4 this amount.
-                        */
-                       count = (cred_info->cur_free_credits /
-                                cur_ep_dist->cred_per_msg)
-                               * cur_ep_dist->cred_per_msg;
-                       count = (count * 3) >> 2;
-                       count = max(count, cur_ep_dist->cred_per_msg);
-                       cur_ep_dist->cred_norm = count;
-
-               }
-       }
-}
-
-/* initialize and setup credit distribution */
-int ath6k_setup_credit_dist(void *htc_handle,
-                           struct htc_credit_state_info *cred_info)
-{
-       u16 servicepriority[5];
-
-       memset(cred_info, 0, sizeof(struct htc_credit_state_info));
-
-       servicepriority[0] = WMI_CONTROL_SVC;  /* highest */
-       servicepriority[1] = WMI_DATA_VO_SVC;
-       servicepriority[2] = WMI_DATA_VI_SVC;
-       servicepriority[3] = WMI_DATA_BE_SVC;
-       servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */
-
-       /* set priority list */
-       ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5);
-
-       return 0;
-}
-
-/* reduce an ep's credits back to a set limit */
-static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info,
-                                struct htc_endpoint_credit_dist  *ep_dist,
-                                int limit)
-{
-       int credits;
-
-       ep_dist->cred_assngd = limit;
-
-       if (ep_dist->credits <= limit)
-               return;
-
-       credits = ep_dist->credits - limit;
-       ep_dist->credits -= credits;
-       cred_info->cur_free_credits += credits;
-}
-
-static void ath6k_credit_update(struct htc_credit_state_info *cred_info,
-                               struct list_head *epdist_list)
-{
-       struct htc_endpoint_credit_dist *cur_dist_list;
-
-       list_for_each_entry(cur_dist_list, epdist_list, list) {
-               if (cur_dist_list->endpoint == ENDPOINT_0)
-                       continue;
-
-               if (cur_dist_list->cred_to_dist > 0) {
-                       cur_dist_list->credits +=
-                                       cur_dist_list->cred_to_dist;
-                       cur_dist_list->cred_to_dist = 0;
-                       if (cur_dist_list->credits >
-                           cur_dist_list->cred_assngd)
-                               ath6k_reduce_credits(cred_info,
-                                               cur_dist_list,
-                                               cur_dist_list->cred_assngd);
-
-                       if (cur_dist_list->credits >
-                           cur_dist_list->cred_norm)
-                               ath6k_reduce_credits(cred_info, cur_dist_list,
-                                                    cur_dist_list->cred_norm);
-
-                       if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) {
-                               if (cur_dist_list->txq_depth == 0)
-                                       ath6k_reduce_credits(cred_info,
-                                                            cur_dist_list, 0);
-                       }
-               }
-       }
-}
-
-/*
- * HTC has an endpoint that needs credits, ep_dist is the endpoint in
- * question.
- */
-void ath6k_seek_credits(struct htc_credit_state_info *cred_info,
-                       struct htc_endpoint_credit_dist *ep_dist)
-{
-       struct htc_endpoint_credit_dist *curdist_list;
-       int credits = 0;
-       int need;
-
-       if (ep_dist->svc_id == WMI_CONTROL_SVC)
-               goto out;
-
-       if ((ep_dist->svc_id == WMI_DATA_VI_SVC) ||
-           (ep_dist->svc_id == WMI_DATA_VO_SVC))
-               if ((ep_dist->cred_assngd >= ep_dist->cred_norm))
-                       goto out;
-
-       /*
-        * For all other services, we follow a simple algorithm of:
-        *
-        * 1. checking the free pool for credits
-        * 2. checking lower priority endpoints for credits to take
-        */
-
-       credits = min(cred_info->cur_free_credits, ep_dist->seek_cred);
-
-       if (credits >= ep_dist->seek_cred)
-               goto out;
-
-       /*
-        * We don't have enough in the free pool, try taking away from
-        * lower priority services The rule for taking away credits:
-        *
-        *   1. Only take from lower priority endpoints
-        *   2. Only take what is allocated above the minimum (never
-        *      starve an endpoint completely)
-        *   3. Only take what you need.
-        */
-
-       list_for_each_entry_reverse(curdist_list,
-                                   &cred_info->lowestpri_ep_dist,
-                                   list) {
-               if (curdist_list == ep_dist)
-                       break;
-
-               need = ep_dist->seek_cred - cred_info->cur_free_credits;
-
-               if ((curdist_list->cred_assngd - need) >=
-                    curdist_list->cred_min) {
-                       /*
-                        * The current one has been allocated more than
-                        * it's minimum and it has enough credits assigned
-                        * above it's minimum to fulfill our need try to
-                        * take away just enough to fulfill our need.
-                        */
-                       ath6k_reduce_credits(cred_info, curdist_list,
-                                       curdist_list->cred_assngd - need);
-
-                       if (cred_info->cur_free_credits >=
-                           ep_dist->seek_cred)
-                               break;
-               }
-
-               if (curdist_list->endpoint == ENDPOINT_0)
-                       break;
-       }
-
-       credits = min(cred_info->cur_free_credits, ep_dist->seek_cred);
-
-out:
-       /* did we find some credits? */
-       if (credits)
-               ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits);
-
-       ep_dist->seek_cred = 0;
-}
-
-/* redistribute credits based on activity change */
-static void ath6k_redistribute_credits(struct htc_credit_state_info *info,
-                                      struct list_head *ep_dist_list)
-{
-       struct htc_endpoint_credit_dist *curdist_list;
-
-       list_for_each_entry(curdist_list, ep_dist_list, list) {
-               if (curdist_list->endpoint == ENDPOINT_0)
-                       continue;
-
-               if ((curdist_list->svc_id == WMI_DATA_BK_SVC)  ||
-                   (curdist_list->svc_id == WMI_DATA_BE_SVC))
-                       curdist_list->dist_flags |= HTC_EP_ACTIVE;
-
-               if ((curdist_list->svc_id != WMI_CONTROL_SVC) &&
-                   !(curdist_list->dist_flags & HTC_EP_ACTIVE)) {
-                       if (curdist_list->txq_depth == 0)
-                               ath6k_reduce_credits(info,
-                                               curdist_list, 0);
-                       else
-                               ath6k_reduce_credits(info,
-                                               curdist_list,
-                                               curdist_list->cred_min);
-               }
-       }
-}
-
-/*
- *
- * This function is invoked whenever endpoints require credit
- * distributions. A lock is held while this function is invoked, this
- * function shall NOT block. The ep_dist_list is a list of distribution
- * structures in prioritized order as defined by the call to the
- * htc_set_credit_dist() api.
- */
-void ath6k_credit_distribute(struct htc_credit_state_info *cred_info,
-                            struct list_head *ep_dist_list,
-                            enum htc_credit_dist_reason reason)
-{
-       switch (reason) {
-       case HTC_CREDIT_DIST_SEND_COMPLETE:
-               ath6k_credit_update(cred_info, ep_dist_list);
-               break;
-       case HTC_CREDIT_DIST_ACTIVITY_CHANGE:
-               ath6k_redistribute_credits(cred_info, ep_dist_list);
-               break;
-       default:
-               break;
-       }
-
-       WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits);
-       WARN_ON(cred_info->cur_free_credits < 0);
+       netif_wake_queue(vif->ndev);
 }
 
 void disconnect_timer_handler(unsigned long ptr)
 {
        struct net_device *dev = (struct net_device *)ptr;
-       struct ath6kl *ar = ath6kl_priv(dev);
+       struct ath6kl_vif *vif = netdev_priv(dev);
 
-       ath6kl_init_profile_info(ar);
-       ath6kl_disconnect(ar);
+       ath6kl_init_profile_info(vif);
+       ath6kl_disconnect(vif);
 }
 
-void ath6kl_disconnect(struct ath6kl *ar)
+void ath6kl_disconnect(struct ath6kl_vif *vif)
 {
-       if (test_bit(CONNECTED, &ar->flag) ||
-           test_bit(CONNECT_PEND, &ar->flag)) {
-               ath6kl_wmi_disconnect_cmd(ar->wmi);
+       if (test_bit(CONNECTED, &vif->flags) ||
+           test_bit(CONNECT_PEND, &vif->flags)) {
+               ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
                /*
                 * Disconnect command is issued, clear the connect pending
                 * flag. The connected flag will be cleared in
                 * disconnect event notification.
                 */
-               clear_bit(CONNECT_PEND, &ar->flag);
-       }
-}
-
-void ath6kl_deep_sleep_enable(struct ath6kl *ar)
-{
-       switch (ar->sme_state) {
-       case SME_CONNECTING:
-               cfg80211_connect_result(ar->net_dev, ar->bssid, NULL, 0,
-                                       NULL, 0,
-                                       WLAN_STATUS_UNSPECIFIED_FAILURE,
-                                       GFP_KERNEL);
-               break;
-       case SME_CONNECTED:
-       default:
-               /*
-                * FIXME: oddly enough smeState is in DISCONNECTED during
-                * suspend, why? Need to send disconnected event in that
-                * state.
-                */
-               cfg80211_disconnected(ar->net_dev, 0, NULL, 0, GFP_KERNEL);
-               break;
+               clear_bit(CONNECT_PEND, &vif->flags);
        }
-
-       if (test_bit(CONNECTED, &ar->flag) ||
-           test_bit(CONNECT_PEND, &ar->flag))
-               ath6kl_wmi_disconnect_cmd(ar->wmi);
-
-       ar->sme_state = SME_DISCONNECTED;
-
-       /* disable scanning */
-       if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0,
-                                     0, 0) != 0)
-               printk(KERN_WARNING "ath6kl: failed to disable scan "
-                      "during suspend\n");
-
-       ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED);
 }
 
 /* WMI Event handlers */
@@ -980,17 +598,16 @@ static const char *get_hw_id_string(u32 id)
 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
 {
        struct ath6kl *ar = devt;
-       struct net_device *dev = ar->net_dev;
 
-       memcpy(dev->dev_addr, datap, ETH_ALEN);
+       memcpy(ar->mac_addr, datap, ETH_ALEN);
        ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
-                  __func__, dev->dev_addr);
+                  __func__, ar->mac_addr);
 
        ar->version.wlan_ver = sw_ver;
        ar->version.abi_ver = abi_ver;
 
-       snprintf(ar->wdev->wiphy->fw_version,
-                sizeof(ar->wdev->wiphy->fw_version),
+       snprintf(ar->wiphy->fw_version,
+                sizeof(ar->wiphy->fw_version),
                 "%u.%u.%u.%u",
                 (ar->version.wlan_ver & 0xf0000000) >> 28,
                 (ar->version.wlan_ver & 0x0f000000) >> 24,
@@ -1001,78 +618,91 @@ void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
        set_bit(WMI_READY, &ar->flag);
        wake_up(&ar->event_wq);
 
-       ath6kl_info("hw %s fw %s%s\n",
-                   get_hw_id_string(ar->wdev->wiphy->hw_version),
-                   ar->wdev->wiphy->fw_version,
-                   test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
+       if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
+               ath6kl_info("hw %s fw %s%s\n",
+                           get_hw_id_string(ar->wiphy->hw_version),
+                           ar->wiphy->fw_version,
+                           test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
+       }
 }
 
-void ath6kl_scan_complete_evt(struct ath6kl *ar, int status)
+void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
 {
-       ath6kl_cfg80211_scan_complete_event(ar, status);
+       struct ath6kl *ar = vif->ar;
+       bool aborted = false;
+
+       if (status != WMI_SCAN_STATUS_SUCCESS)
+               aborted = true;
+
+       ath6kl_cfg80211_scan_complete_event(vif, aborted);
 
        if (!ar->usr_bss_filter) {
-               clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag);
-               ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
+               clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
+               ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+                                        NONE_BSS_FILTER, 0);
        }
 
-       ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status);
+       ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
 }
 
-void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid,
+void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
                          u16 listen_int, u16 beacon_int,
                          enum network_type net_type, u8 beacon_ie_len,
                          u8 assoc_req_len, u8 assoc_resp_len,
                          u8 *assoc_info)
 {
-       unsigned long flags;
+       struct ath6kl *ar = vif->ar;
 
-       ath6kl_cfg80211_connect_event(ar, channel, bssid,
+       ath6kl_cfg80211_connect_event(vif, channel, bssid,
                                      listen_int, beacon_int,
                                      net_type, beacon_ie_len,
                                      assoc_req_len, assoc_resp_len,
                                      assoc_info);
 
-       memcpy(ar->bssid, bssid, sizeof(ar->bssid));
-       ar->bss_ch = channel;
+       memcpy(vif->bssid, bssid, sizeof(vif->bssid));
+       vif->bss_ch = channel;
 
-       if ((ar->nw_type == INFRA_NETWORK))
-               ath6kl_wmi_listeninterval_cmd(ar->wmi, ar->listen_intvl_t,
+       if ((vif->nw_type == INFRA_NETWORK))
+               ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
+                                             ar->listen_intvl_t,
                                              ar->listen_intvl_b);
 
-       netif_wake_queue(ar->net_dev);
+       netif_wake_queue(vif->ndev);
 
        /* Update connect & link status atomically */
-       spin_lock_irqsave(&ar->lock, flags);
-       set_bit(CONNECTED, &ar->flag);
-       clear_bit(CONNECT_PEND, &ar->flag);
-       netif_carrier_on(ar->net_dev);
-       spin_unlock_irqrestore(&ar->lock, flags);
+       spin_lock_bh(&vif->if_lock);
+       set_bit(CONNECTED, &vif->flags);
+       clear_bit(CONNECT_PEND, &vif->flags);
+       netif_carrier_on(vif->ndev);
+       spin_unlock_bh(&vif->if_lock);
 
-       aggr_reset_state(ar->aggr_cntxt);
-       ar->reconnect_flag = 0;
+       aggr_reset_state(vif->aggr_cntxt);
+       vif->reconnect_flag = 0;
 
-       if ((ar->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
+       if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
                memset(ar->node_map, 0, sizeof(ar->node_map));
                ar->node_num = 0;
                ar->next_ep_id = ENDPOINT_2;
        }
 
        if (!ar->usr_bss_filter) {
-               set_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag);
-               ath6kl_wmi_bssfilter_cmd(ar->wmi, CURRENT_BSS_FILTER, 0);
+               set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
+               ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+                                        CURRENT_BSS_FILTER, 0);
        }
 }
 
-void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast)
+void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
 {
        struct ath6kl_sta *sta;
+       struct ath6kl *ar = vif->ar;
        u8 tsc[6];
+
        /*
         * For AP case, keyid will have aid of STA which sent pkt with
         * MIC error. Use this aid to get MAC & send it to hostapd.
         */
-       if (ar->nw_type == AP_NETWORK) {
+       if (vif->nw_type == AP_NETWORK) {
                sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
                if (!sta)
                        return;
@@ -1081,19 +711,20 @@ void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast)
                           "ap tkip mic error received from aid=%d\n", keyid);
 
                memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
-               cfg80211_michael_mic_failure(ar->net_dev, sta->mac,
+               cfg80211_michael_mic_failure(vif->ndev, sta->mac,
                                             NL80211_KEYTYPE_PAIRWISE, keyid,
                                             tsc, GFP_KERNEL);
        } else
-               ath6kl_cfg80211_tkip_micerr_event(ar, keyid, ismcast);
+               ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
 
 }
 
-static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len)
+static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
 {
        struct wmi_target_stats *tgt_stats =
                (struct wmi_target_stats *) ptr;
-       struct target_stats *stats = &ar->target_stats;
+       struct ath6kl *ar = vif->ar;
+       struct target_stats *stats = &vif->target_stats;
        struct tkip_ccmp_stats *ccmp_stats;
        u8 ac;
 
@@ -1189,8 +820,8 @@ static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len)
        stats->wow_evt_discarded +=
                le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
 
-       if (test_bit(STATS_UPDATE_PEND, &ar->flag)) {
-               clear_bit(STATS_UPDATE_PEND, &ar->flag);
+       if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
+               clear_bit(STATS_UPDATE_PEND, &vif->flags);
                wake_up(&ar->event_wq);
        }
 }
@@ -1200,14 +831,15 @@ static void ath6kl_add_le32(__le32 *var, __le32 val)
        *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
 }
 
-void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len)
+void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
 {
        struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
+       struct ath6kl *ar = vif->ar;
        struct wmi_ap_mode_stat *ap = &ar->ap_stats;
        struct wmi_per_sta_stat *st_ap, *st_p;
        u8 ac;
 
-       if (ar->nw_type == AP_NETWORK) {
+       if (vif->nw_type == AP_NETWORK) {
                if (len < sizeof(*p))
                        return;
 
@@ -1226,7 +858,7 @@ void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len)
                }
 
        } else {
-               ath6kl_update_target_stats(ar, ptr, len);
+               ath6kl_update_target_stats(vif, ptr, len);
        }
 }
 
@@ -1245,11 +877,12 @@ void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
        wake_up(&ar->event_wq);
 }
 
-void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid)
+void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
 {
        struct ath6kl_sta *conn;
        struct sk_buff *skb;
        bool psq_empty = false;
+       struct ath6kl *ar = vif->ar;
 
        conn = ath6kl_find_sta_by_aid(ar, aid);
 
@@ -1272,7 +905,7 @@ void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid)
        spin_unlock_bh(&conn->psq_lock);
 
        conn->sta_flags |= STA_PS_POLLED;
-       ath6kl_data_tx(skb, ar->net_dev);
+       ath6kl_data_tx(skb, vif->ndev);
        conn->sta_flags &= ~STA_PS_POLLED;
 
        spin_lock_bh(&conn->psq_lock);
@@ -1280,13 +913,14 @@ void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid)
        spin_unlock_bh(&conn->psq_lock);
 
        if (psq_empty)
-               ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0);
+               ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
 }
 
-void ath6kl_dtimexpiry_event(struct ath6kl *ar)
+void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
 {
        bool mcastq_empty = false;
        struct sk_buff *skb;
+       struct ath6kl *ar = vif->ar;
 
        /*
         * If there are no associated STAs, ignore the DTIM expiry event.
@@ -1308,31 +942,31 @@ void ath6kl_dtimexpiry_event(struct ath6kl *ar)
                return;
 
        /* set the STA flag to dtim_expired for the frame to go out */
-       set_bit(DTIM_EXPIRED, &ar->flag);
+       set_bit(DTIM_EXPIRED, &vif->flags);
 
        spin_lock_bh(&ar->mcastpsq_lock);
        while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
                spin_unlock_bh(&ar->mcastpsq_lock);
 
-               ath6kl_data_tx(skb, ar->net_dev);
+               ath6kl_data_tx(skb, vif->ndev);
 
                spin_lock_bh(&ar->mcastpsq_lock);
        }
        spin_unlock_bh(&ar->mcastpsq_lock);
 
-       clear_bit(DTIM_EXPIRED, &ar->flag);
+       clear_bit(DTIM_EXPIRED, &vif->flags);
 
        /* clear the LSB of the BitMapCtl field of the TIM IE */
-       ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0);
+       ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
 }
 
-void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid,
+void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
                             u8 assoc_resp_len, u8 *assoc_info,
                             u16 prot_reason_status)
 {
-       unsigned long flags;
+       struct ath6kl *ar = vif->ar;
 
-       if (ar->nw_type == AP_NETWORK) {
+       if (vif->nw_type == AP_NETWORK) {
                if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
                        return;
 
@@ -1344,31 +978,31 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid,
 
                        /* clear the LSB of the TIM IE's BitMapCtl field */
                        if (test_bit(WMI_READY, &ar->flag))
-                               ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0);
+                               ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
+                                                      MCAST_AID, 0);
                }
 
                if (!is_broadcast_ether_addr(bssid)) {
                        /* send event to application */
-                       cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL);
+                       cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
                }
 
-               if (memcmp(ar->net_dev->dev_addr, bssid, ETH_ALEN) == 0) {
-                       memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
-                       clear_bit(CONNECTED, &ar->flag);
+               if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
+                       memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
+                       clear_bit(CONNECTED, &vif->flags);
                }
                return;
        }
 
-       ath6kl_cfg80211_disconnect_event(ar, reason, bssid,
+       ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
                                       assoc_resp_len, assoc_info,
                                       prot_reason_status);
 
-       aggr_reset_state(ar->aggr_cntxt);
+       aggr_reset_state(vif->aggr_cntxt);
 
-       del_timer(&ar->disconnect_timer);
+       del_timer(&vif->disconnect_timer);
 
-       ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT,
-                  "disconnect reason is %d\n", reason);
+       ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
 
        /*
         * If the event is due to disconnect cmd from the host, only they
@@ -1377,83 +1011,98 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid,
         */
        if (reason == DISCONNECT_CMD) {
                if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
-                       ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
+                       ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+                                                NONE_BSS_FILTER, 0);
        } else {
-               set_bit(CONNECT_PEND, &ar->flag);
+               set_bit(CONNECT_PEND, &vif->flags);
                if (((reason == ASSOC_FAILED) &&
                    (prot_reason_status == 0x11)) ||
                    ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0)
-                    && (ar->reconnect_flag == 1))) {
-                       set_bit(CONNECTED, &ar->flag);
+                    && (vif->reconnect_flag == 1))) {
+                       set_bit(CONNECTED, &vif->flags);
                        return;
                }
        }
 
        /* update connect & link status atomically */
-       spin_lock_irqsave(&ar->lock, flags);
-       clear_bit(CONNECTED, &ar->flag);
-       netif_carrier_off(ar->net_dev);
-       spin_unlock_irqrestore(&ar->lock, flags);
+       spin_lock_bh(&vif->if_lock);
+       clear_bit(CONNECTED, &vif->flags);
+       netif_carrier_off(vif->ndev);
+       spin_unlock_bh(&vif->if_lock);
 
-       if ((reason != CSERV_DISCONNECT) || (ar->reconnect_flag != 1))
-               ar->reconnect_flag = 0;
+       if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
+               vif->reconnect_flag = 0;
 
        if (reason != CSERV_DISCONNECT)
                ar->user_key_ctrl = 0;
 
-       netif_stop_queue(ar->net_dev);
-       memset(ar->bssid, 0, sizeof(ar->bssid));
-       ar->bss_ch = 0;
+       netif_stop_queue(vif->ndev);
+       memset(vif->bssid, 0, sizeof(vif->bssid));
+       vif->bss_ch = 0;
 
        ath6kl_tx_data_cleanup(ar);
 }
 
-static int ath6kl_open(struct net_device *dev)
+struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
 {
-       struct ath6kl *ar = ath6kl_priv(dev);
-       unsigned long flags;
+       struct ath6kl_vif *vif;
+
+       spin_lock_bh(&ar->list_lock);
+       if (list_empty(&ar->vif_list)) {
+               spin_unlock_bh(&ar->list_lock);
+               return NULL;
+       }
 
-       spin_lock_irqsave(&ar->lock, flags);
+       vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
 
-       set_bit(WLAN_ENABLED, &ar->flag);
+       spin_unlock_bh(&ar->list_lock);
 
-       if (test_bit(CONNECTED, &ar->flag)) {
+       return vif;
+}
+
+static int ath6kl_open(struct net_device *dev)
+{
+       struct ath6kl_vif *vif = netdev_priv(dev);
+
+       set_bit(WLAN_ENABLED, &vif->flags);
+
+       if (test_bit(CONNECTED, &vif->flags)) {
                netif_carrier_on(dev);
                netif_wake_queue(dev);
        } else
                netif_carrier_off(dev);
 
-       spin_unlock_irqrestore(&ar->lock, flags);
-
        return 0;
 }
 
 static int ath6kl_close(struct net_device *dev)
 {
        struct ath6kl *ar = ath6kl_priv(dev);
+       struct ath6kl_vif *vif = netdev_priv(dev);
 
        netif_stop_queue(dev);
 
-       ath6kl_disconnect(ar);
+       ath6kl_disconnect(vif);
 
        if (test_bit(WMI_READY, &ar->flag)) {
-               if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0,
-                                             0, 0, 0))
+               if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF,
+                                             0, 0, 0, 0, 0, 0, 0, 0, 0))
                        return -EIO;
 
-               clear_bit(WLAN_ENABLED, &ar->flag);
        }
 
-       ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED);
+       ath6kl_cfg80211_scan_complete_event(vif, true);
+
+       clear_bit(WLAN_ENABLED, &vif->flags);
 
        return 0;
 }
 
 static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
 {
-       struct ath6kl *ar = ath6kl_priv(dev);
+       struct ath6kl_vif *vif = netdev_priv(dev);
 
-       return &ar->net_stats;
+       return &vif->net_stats;
 }
 
 static struct net_device_ops ath6kl_netdev_ops = {
@@ -1466,6 +1115,7 @@ static struct net_device_ops ath6kl_netdev_ops = {
 void init_netdev(struct net_device *dev)
 {
        dev->netdev_ops = &ath6kl_netdev_ops;
+       dev->destructor = free_netdev;
        dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
 
        dev->needed_headroom = ETH_HLEN;
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