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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>
This commit is contained in:
Avinash Patil 2012-09-10 18:30:49 -07:00 committed by John W. Linville
parent fd4c451128
commit 4ac8764ab2
3 changed files with 76 additions and 1 deletions
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1
drivers/net/wireless/mwifiex/main.h
View File

@ -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);

6
drivers/net/wireless/mwifiex/txrx.c
View File

@ -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 =

70
drivers/net/wireless/mwifiex/uap_txrx.c
View File

@ -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;
}