diff options
author | Avinash Patil <patila@marvell.com> | 2012-09-11 01:30:49 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2012-09-11 19:31:58 (GMT) |
commit | 4ac8764ab2290fd83c21b4183ca6a0f279dab277 (patch) | |
tree | 4095ec3b1b1dad95edaa5654e6d56796ff508692 /drivers/net | |
parent | fd4c45112800573f2c40a6372c419f6218885b58 (diff) | |
download | linux-fsl-qoriq-4ac8764ab2290fd83c21b4183ca6a0f279dab277.tar.xz |
mwifiex: separate TxPD processing routine for AP
This patch adds separate tx packet descriptor routine for AP
interface. This function fills bss_type, bss_num, wmm packet
delay information etc for TxPD going on AP interface.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/wireless/mwifiex/main.h | 1 | ||||
-rw-r--r-- | drivers/net/wireless/mwifiex/txrx.c | 6 | ||||
-rw-r--r-- | drivers/net/wireless/mwifiex/uap_txrx.c | 70 |
3 files changed, 76 insertions, 1 deletions
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index bb75390..12ceea4 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -812,6 +812,7 @@ struct mwifiex_sta_node * mwifiex_get_sta_entry(struct mwifiex_private *priv, u8 *mac); void mwifiex_delete_all_station_list(struct mwifiex_private *priv); void *mwifiex_process_sta_txpd(struct mwifiex_private *, struct sk_buff *skb); +void *mwifiex_process_uap_txpd(struct mwifiex_private *, struct sk_buff *skb); int mwifiex_sta_init_cmd(struct mwifiex_private *, u8 first_sta); int mwifiex_cmd_802_11_scan(struct host_cmd_ds_command *cmd, struct mwifiex_scan_cmd_config *scan_cfg); diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c index 985073d..2af2639 100644 --- a/drivers/net/wireless/mwifiex/txrx.c +++ b/drivers/net/wireless/mwifiex/txrx.c @@ -75,7 +75,11 @@ int mwifiex_process_tx(struct mwifiex_private *priv, struct sk_buff *skb, u8 *head_ptr; struct txpd *local_tx_pd = NULL; - head_ptr = mwifiex_process_sta_txpd(priv, skb); + if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) + head_ptr = mwifiex_process_uap_txpd(priv, skb); + else + head_ptr = mwifiex_process_sta_txpd(priv, skb); + if (head_ptr) { if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) local_tx_pd = diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c index 6d814f0..df17d08 100644 --- a/drivers/net/wireless/mwifiex/uap_txrx.c +++ b/drivers/net/wireless/mwifiex/uap_txrx.c @@ -253,3 +253,73 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter, return ret; } + +/* + * This function fills the TxPD for AP tx packets. + * + * The Tx buffer received by this function should already have the + * header space allocated for TxPD. + * + * This function inserts the TxPD in between interface header and actual + * data and adjusts the buffer pointers accordingly. + * + * The following TxPD fields are set by this function, as required - + * - BSS number + * - Tx packet length and offset + * - Priority + * - Packet delay + * - Priority specific Tx control + * - Flags + */ +void *mwifiex_process_uap_txpd(struct mwifiex_private *priv, + struct sk_buff *skb) +{ + struct mwifiex_adapter *adapter = priv->adapter; + struct uap_txpd *txpd; + struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb); + int pad, len; + + if (!skb->len) { + dev_err(adapter->dev, "Tx: bad packet length: %d\n", skb->len); + tx_info->status_code = -1; + return skb->data; + } + + /* If skb->data is not aligned, add padding */ + pad = (4 - (((void *)skb->data - NULL) & 0x3)) % 4; + + len = sizeof(*txpd) + pad; + + BUG_ON(skb_headroom(skb) < len + INTF_HEADER_LEN); + + skb_push(skb, len); + + txpd = (struct uap_txpd *)skb->data; + memset(txpd, 0, sizeof(*txpd)); + txpd->bss_num = priv->bss_num; + txpd->bss_type = priv->bss_type; + txpd->tx_pkt_length = cpu_to_le16((u16)(skb->len - len)); + + txpd->priority = (u8)skb->priority; + txpd->pkt_delay_2ms = mwifiex_wmm_compute_drv_pkt_delay(priv, skb); + + if (txpd->priority < ARRAY_SIZE(priv->wmm.user_pri_pkt_tx_ctrl)) + /* + * Set the priority specific tx_control field, setting of 0 will + * cause the default value to be used later in this function. + */ + txpd->tx_control = + cpu_to_le32(priv->wmm.user_pri_pkt_tx_ctrl[txpd->priority]); + + /* Offset of actual data */ + txpd->tx_pkt_offset = cpu_to_le16(len); + + /* make space for INTF_HEADER_LEN */ + skb_push(skb, INTF_HEADER_LEN); + + if (!txpd->tx_control) + /* TxCtrl set by user or default */ + txpd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl); + + return skb->data; +} |