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ath9k_htc: Use helper routines for transmission

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Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2011-04-13 11:26:52 +05:30 committed by John W. Linville
parent 2f80194c90
commit 821f9414c0
1 changed files with 127 additions and 100 deletions
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227
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
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@ -211,28 +211,140 @@ int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
return error;
}
static void ath9k_htc_tx_mgmt(struct ath9k_htc_priv *priv,
struct ath9k_htc_vif *avp,
struct sk_buff *skb,
u8 sta_idx, u8 vif_idx, u8 slot)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_mgmt *mgmt;
struct ieee80211_hdr *hdr;
struct tx_mgmt_hdr mgmt_hdr;
struct ath9k_htc_tx_ctl *tx_ctl;
u8 *tx_fhdr;
tx_ctl = HTC_SKB_CB(skb);
hdr = (struct ieee80211_hdr *) skb->data;
memset(tx_ctl, 0, sizeof(*tx_ctl));
memset(&mgmt_hdr, 0, sizeof(struct tx_mgmt_hdr));
/*
* Set the TSF adjust value for probe response
* frame also.
*/
if (avp && unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
mgmt = (struct ieee80211_mgmt *)skb->data;
mgmt->u.probe_resp.timestamp = avp->tsfadjust;
}
tx_ctl->type = ATH9K_HTC_MGMT;
mgmt_hdr.node_idx = sta_idx;
mgmt_hdr.vif_idx = vif_idx;
mgmt_hdr.tidno = 0;
mgmt_hdr.flags = 0;
mgmt_hdr.cookie = slot;
mgmt_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (mgmt_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
mgmt_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
mgmt_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
tx_ctl->epid = priv->mgmt_ep;
}
static void ath9k_htc_tx_data(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct sk_buff *skb,
u8 sta_idx, u8 vif_idx, u8 slot,
bool is_cab)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr;
struct ath9k_htc_tx_ctl *tx_ctl;
struct tx_frame_hdr tx_hdr;
u32 flags = 0;
u8 *qc, *tx_fhdr;
u16 qnum;
tx_ctl = HTC_SKB_CB(skb);
hdr = (struct ieee80211_hdr *) skb->data;
memset(tx_ctl, 0, sizeof(*tx_ctl));
memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));
tx_hdr.node_idx = sta_idx;
tx_hdr.vif_idx = vif_idx;
tx_hdr.cookie = slot;
/*
* This is a bit redundant but it helps to get
* the per-packet index quickly when draining the
* TX queue in the HIF layer. Otherwise we would
* have to parse the packet contents ...
*/
tx_ctl->sta_idx = sta_idx;
if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
tx_ctl->type = ATH9K_HTC_AMPDU;
tx_hdr.data_type = ATH9K_HTC_AMPDU;
} else {
tx_ctl->type = ATH9K_HTC_NORMAL;
tx_hdr.data_type = ATH9K_HTC_NORMAL;
}
if (ieee80211_is_data_qos(hdr->frame_control)) {
qc = ieee80211_get_qos_ctl(hdr);
tx_hdr.tidno = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
}
/* Check for RTS protection */
if (priv->hw->wiphy->rts_threshold != (u32) -1)
if (skb->len > priv->hw->wiphy->rts_threshold)
flags |= ATH9K_HTC_TX_RTSCTS;
/* CTS-to-self */
if (!(flags & ATH9K_HTC_TX_RTSCTS) &&
(vif && vif->bss_conf.use_cts_prot))
flags |= ATH9K_HTC_TX_CTSONLY;
tx_hdr.flags = cpu_to_be32(flags);
tx_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (tx_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
tx_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
tx_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(tx_hdr));
memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));
if (is_cab) {
CAB_STAT_INC;
tx_ctl->epid = priv->cab_ep;
return;
}
qnum = skb_get_queue_mapping(skb);
tx_ctl->epid = get_htc_epid(priv, qnum);
}
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
struct sk_buff *skb,
u8 slot, bool is_cab)
{
struct ieee80211_hdr *hdr;
struct ieee80211_mgmt *mgmt;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = tx_info->control.sta;
struct ieee80211_vif *vif = tx_info->control.vif;
struct ath9k_htc_sta *ista;
struct ath9k_htc_vif *avp = NULL;
struct ath9k_htc_tx_ctl *tx_ctl;
u16 qnum;
__le16 fc;
u8 *tx_fhdr;
u8 sta_idx, vif_idx;
tx_ctl = HTC_SKB_CB(skb);
memset(tx_ctl, 0, sizeof(*tx_ctl));
hdr = (struct ieee80211_hdr *) skb->data;
fc = hdr->frame_control;
/*
* Find out on which interface this packet has to be
@ -261,99 +373,14 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
sta_idx = priv->vif_sta_pos[vif_idx];
}
if (ieee80211_is_data(fc)) {
struct tx_frame_hdr tx_hdr;
u32 flags = 0;
u8 *qc;
if (ieee80211_is_data(hdr->frame_control))
ath9k_htc_tx_data(priv, vif, skb,
sta_idx, vif_idx, slot, is_cab);
else
ath9k_htc_tx_mgmt(priv, avp, skb,
sta_idx, vif_idx, slot);
memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));
tx_hdr.node_idx = sta_idx;
tx_hdr.vif_idx = vif_idx;
tx_hdr.cookie = slot;
/*
* This is a bit redundant but it helps to get
* the per-packet index quickly when draining the
* TX queue in the HIF layer. Otherwise we would
* have to parse the packet contents ...
*/
tx_ctl->sta_idx = sta_idx;
if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
tx_ctl->type = ATH9K_HTC_AMPDU;
tx_hdr.data_type = ATH9K_HTC_AMPDU;
} else {
tx_ctl->type = ATH9K_HTC_NORMAL;
tx_hdr.data_type = ATH9K_HTC_NORMAL;
}
if (ieee80211_is_data_qos(fc)) {
qc = ieee80211_get_qos_ctl(hdr);
tx_hdr.tidno = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
}
/* Check for RTS protection */
if (priv->hw->wiphy->rts_threshold != (u32) -1)
if (skb->len > priv->hw->wiphy->rts_threshold)
flags |= ATH9K_HTC_TX_RTSCTS;
/* CTS-to-self */
if (!(flags & ATH9K_HTC_TX_RTSCTS) &&
(vif && vif->bss_conf.use_cts_prot))
flags |= ATH9K_HTC_TX_CTSONLY;
tx_hdr.flags = cpu_to_be32(flags);
tx_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (tx_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
tx_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
tx_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(tx_hdr));
memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));
if (is_cab) {
CAB_STAT_INC;
tx_ctl->epid = priv->cab_ep;
goto send;
}
qnum = skb_get_queue_mapping(skb);
tx_ctl->epid = get_htc_epid(priv, qnum);
} else {
struct tx_mgmt_hdr mgmt_hdr;
memset(&mgmt_hdr, 0, sizeof(struct tx_mgmt_hdr));
/*
* Set the TSF adjust value for probe response
* frame also.
*/
if (avp && unlikely(ieee80211_is_probe_resp(fc))) {
mgmt = (struct ieee80211_mgmt *)skb->data;
mgmt->u.probe_resp.timestamp = avp->tsfadjust;
}
tx_ctl->type = ATH9K_HTC_MGMT;
mgmt_hdr.node_idx = sta_idx;
mgmt_hdr.vif_idx = vif_idx;
mgmt_hdr.tidno = 0;
mgmt_hdr.flags = 0;
mgmt_hdr.cookie = slot;
mgmt_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (mgmt_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
mgmt_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
mgmt_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
tx_ctl->epid = priv->mgmt_ep;
}
send:
return htc_send(priv->htc, skb);
}