diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex')
| -rw-r--r-- | drivers/net/wireless/mwifiex/cfg80211.c | 92 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/decl.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.c | 34 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.h | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/sta_tx.c | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/wmm.c | 7 |
6 files changed, 143 insertions, 17 deletions
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 6fd4fa6705d9..11942e5e33cf 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -139,6 +139,94 @@ mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, } /* + * This function forms an skb for management frame. + */ +static int +mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) +{ + u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + u16 pkt_len; + u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; + struct timeval tv; + + pkt_len = len + ETH_ALEN; + + skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); + memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); + + memcpy(skb_push(skb, sizeof(tx_control)), + &tx_control, sizeof(tx_control)); + + memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); + + /* Add packet data and address4 */ + memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf, + sizeof(struct ieee80211_hdr_3addr)); + memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN); + memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)), + buf + sizeof(struct ieee80211_hdr_3addr), + len - sizeof(struct ieee80211_hdr_3addr)); + + skb->priority = LOW_PRIO_TID; + do_gettimeofday(&tv); + skb->tstamp = timeval_to_ktime(tv); + + return 0; +} + +/* + * CFG802.11 operation handler to transmit a management frame. + */ +static int +mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct ieee80211_channel *chan, bool offchan, + enum nl80211_channel_type channel_type, + bool channel_type_valid, unsigned int wait, + const u8 *buf, size_t len, bool no_cck, + bool dont_wait_for_ack, u64 *cookie) +{ + struct sk_buff *skb; + u16 pkt_len; + const struct ieee80211_mgmt *mgmt; + struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); + + if (!buf || !len) { + wiphy_err(wiphy, "invalid buffer and length\n"); + return -EFAULT; + } + + mgmt = (const struct ieee80211_mgmt *)buf; + if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && + ieee80211_is_probe_resp(mgmt->frame_control)) { + /* Since we support offload probe resp, we need to skip probe + * resp in AP or GO mode */ + wiphy_dbg(wiphy, + "info: skip to send probe resp in AP or GO mode\n"); + return 0; + } + + pkt_len = len + ETH_ALEN; + skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + + pkt_len + sizeof(pkt_len)); + + if (!skb) { + wiphy_err(wiphy, "allocate skb failed for management frame\n"); + return -ENOMEM; + } + + mwifiex_form_mgmt_frame(skb, buf, len); + mwifiex_queue_tx_pkt(priv, skb); + + *cookie = random32() | 1; + cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC); + + wiphy_dbg(wiphy, "info: management frame transmitted\n"); + return 0; +} + +/* * CFG802.11 operation handler to set Tx power. */ static int @@ -1810,6 +1898,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = { .leave_ibss = mwifiex_cfg80211_leave_ibss, .add_key = mwifiex_cfg80211_add_key, .del_key = mwifiex_cfg80211_del_key, + .mgmt_tx = mwifiex_cfg80211_mgmt_tx, .set_default_key = mwifiex_cfg80211_set_default_key, .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, .set_tx_power = mwifiex_cfg80211_set_tx_power, @@ -1872,7 +1961,8 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom); wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | - NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; diff --git a/drivers/net/wireless/mwifiex/decl.h b/drivers/net/wireless/mwifiex/decl.h index 400d360ac91f..d21bcc146f4b 100644 --- a/drivers/net/wireless/mwifiex/decl.h +++ b/drivers/net/wireless/mwifiex/decl.h @@ -33,6 +33,9 @@ #define MWIFIEX_MIN_DATA_HEADER_LEN 36 /* sizeof(mwifiex_txpd) * + 4 byte alignment */ +#define MWIFIEX_MGMT_FRAME_HEADER_SIZE 8 /* sizeof(pkt_type) + * + sizeof(tx_control) + */ #define MWIFIEX_MAX_TX_BASTREAM_SUPPORTED 2 #define MWIFIEX_MAX_RX_BASTREAM_SUPPORTED 16 diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index bfd6667be01e..3bb3417932d0 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -469,6 +469,27 @@ mwifiex_close(struct net_device *dev) } /* + * Add buffer into wmm tx queue and queue work to transmit it. + */ +int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) +{ + mwifiex_wmm_add_buf_txqueue(priv, skb); + atomic_inc(&priv->adapter->tx_pending); + + if (priv->adapter->scan_delay_cnt) + atomic_set(&priv->adapter->is_tx_received, true); + + if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) { + mwifiex_set_trans_start(priv->netdev); + mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); + } + + queue_work(priv->adapter->workqueue, &priv->adapter->main_work); + + return 0; +} + +/* * CFG802.11 network device handler for data transmission. */ static int @@ -516,18 +537,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) tx_info->bss_type = priv->bss_type; mwifiex_fill_buffer(skb); - mwifiex_wmm_add_buf_txqueue(priv, skb); - atomic_inc(&priv->adapter->tx_pending); - - if (priv->adapter->scan_delay_cnt) - atomic_set(&priv->adapter->is_tx_received, true); - - if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) { - mwifiex_set_trans_start(dev); - mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); - } - - queue_work(priv->adapter->workqueue, &priv->adapter->main_work); + mwifiex_queue_tx_pkt(priv, skb); return 0; } diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 90b64b015447..092fbfaeb882 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -98,6 +98,8 @@ enum { #define MWIFIEX_OUI_NOT_PRESENT 0 #define MWIFIEX_OUI_PRESENT 1 +#define PKT_TYPE_MGMT 0xE5 + /* * Do not check for data_received for USB, as data_received * is handled in mwifiex_usb_recv for USB @@ -960,6 +962,14 @@ mwifiex_netdev_get_priv(struct net_device *dev) return (struct mwifiex_private *) (*(unsigned long *) netdev_priv(dev)); } +/* + * This function checks if a skb holds a management frame. + */ +static inline bool mwifiex_is_skb_mgmt_frame(struct sk_buff *skb) +{ + return (*(u32 *)skb->data == PKT_TYPE_MGMT); +} + int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, u32 func_init_shutdown); int mwifiex_add_card(void *, struct semaphore *, struct mwifiex_if_ops *, u8); @@ -1022,6 +1032,8 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, int mwifiex_main_process(struct mwifiex_adapter *); +int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb); + int mwifiex_get_bss_info(struct mwifiex_private *, struct mwifiex_bss_info *); int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, diff --git a/drivers/net/wireless/mwifiex/sta_tx.c b/drivers/net/wireless/mwifiex/sta_tx.c index 0a046d3a0c16..7b581af24f5f 100644 --- a/drivers/net/wireless/mwifiex/sta_tx.c +++ b/drivers/net/wireless/mwifiex/sta_tx.c @@ -48,6 +48,7 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv, struct txpd *local_tx_pd; struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb); u8 pad; + u16 pkt_type, pkt_offset; if (!skb->len) { dev_err(adapter->dev, "Tx: bad packet length: %d\n", skb->len); @@ -55,6 +56,8 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv, return skb->data; } + pkt_type = mwifiex_is_skb_mgmt_frame(skb) ? PKT_TYPE_MGMT : 0; + /* If skb->data is not aligned; add padding */ pad = (4 - (((void *)skb->data - NULL) & 0x3)) % 4; @@ -93,7 +96,14 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv, } /* Offset of actual data */ - local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd) + pad); + pkt_offset = sizeof(struct txpd) + pad; + if (pkt_type == PKT_TYPE_MGMT) { + /* Set the packet type and add header for management frame */ + local_tx_pd->tx_pkt_type = cpu_to_le16(pkt_type); + pkt_offset += MWIFIEX_MGMT_FRAME_HEADER_SIZE; + } + + local_tx_pd->tx_pkt_offset = cpu_to_le16(pkt_offset); /* make space for INTF_HEADER_LEN */ skb_push(skb, INTF_HEADER_LEN); diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 07a45407d3b4..600d8194610e 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -648,7 +648,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, u8 ra[ETH_ALEN], tid_down; unsigned long flags; - if (!priv->media_connected) { + if (!priv->media_connected && !mwifiex_is_skb_mgmt_frame(skb)) { dev_dbg(adapter->dev, "data: drop packet in disconnect\n"); mwifiex_write_data_complete(adapter, skb, -1); return; @@ -663,7 +663,8 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, /* In case of infra as we have already created the list during association we just don't have to call get_queue_raptr, we will have only 1 raptr for a tid in case of infra */ - if (!mwifiex_queuing_ra_based(priv)) { + if (!mwifiex_queuing_ra_based(priv) && + !mwifiex_is_skb_mgmt_frame(skb)) { if (!list_empty(&priv->wmm.tid_tbl_ptr[tid_down].ra_list)) ra_list = list_first_entry( &priv->wmm.tid_tbl_ptr[tid_down].ra_list, @@ -672,7 +673,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, ra_list = NULL; } else { memcpy(ra, skb->data, ETH_ALEN); - if (ra[0] & 0x01) + if (ra[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb)) memset(ra, 0xff, ETH_ALEN); ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra); } |