korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-15 15:04:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

rsi: data packet descriptor enhancements

Browse Source 
This patch covers some enhancements in data packet descriptor
preparation especially for EAPOL, multicast/broadcast packets.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Pavani Muthyala 2017-07-06 20:07:18 +05:30 committed by Kalle Valo
parent af19309776
commit 0eb42586cf
3 changed files with 55 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/net/wireless/rsi/rsi_91x_hal.c
View File

@ -119,14 +119,18 @@ static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_hdr *tmp_hdr;
struct ieee80211_hdr *wh = NULL;
struct ieee80211_tx_info *info;
struct ieee80211_vif *vif = NULL;
struct skb_info *tx_params;
struct ieee80211_bss_conf *bss;
struct rsi_data_desc *data_desc;
struct xtended_desc *xtend_desc;
int status;
u8 ieee80211_size = MIN_802_11_HDR_LEN;
u8 extnd_size;
u8 header_size;
u8 vap_id = 0;
u8 dword_align_bytes;
u16 seq_num;
info = IEEE80211_SKB_CB(skb);
@ -137,23 +141,34 @@ int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
status = -EINVAL;
goto err;
}
tmp_hdr = (struct ieee80211_hdr *)&skb->data[0];
seq_num = (le16_to_cpu(tmp_hdr->seq_ctrl) >> 4);
extnd_size = ((uintptr_t)skb->data & 0x3);
if ((FRAME_DESC_SZ + extnd_size) > skb_headroom(skb)) {
header_size = FRAME_DESC_SZ + sizeof(struct xtended_desc);
if (header_size > skb_headroom(skb)) {
rsi_dbg(ERR_ZONE, "%s: Unable to send pkt\n", __func__);
status = -ENOSPC;
goto err;
}
skb_push(skb, header_size);
dword_align_bytes = ((unsigned long)skb->data & 0x3f);
if (header_size > skb_headroom(skb)) {
rsi_dbg(ERR_ZONE, "%s: Not enough headroom\n", __func__);
status = -ENOSPC;
goto err;
}
skb_push(skb, dword_align_bytes);
header_size += dword_align_bytes;
skb_push(skb, (FRAME_DESC_SZ + extnd_size));
tx_params->internal_hdr_size = header_size;
data_desc = (struct rsi_data_desc *)skb->data;
memset(data_desc, 0, sizeof(*data_desc));
memset(data_desc, 0, header_size);
if (ieee80211_is_data_qos(tmp_hdr->frame_control)) {
xtend_desc = (struct xtended_desc *)&skb->data[FRAME_DESC_SZ];
wh = (struct ieee80211_hdr *)&skb->data[header_size];
seq_num = (le16_to_cpu(wh->seq_ctrl) >> 4);
vif = adapter->vifs[0];
data_desc->xtend_desc_size = header_size - FRAME_DESC_SZ;
if (ieee80211_is_data_qos(wh->frame_control)) {
ieee80211_size += 2;
data_desc->mac_flags |= cpu_to_le16(RSI_QOS_ENABLE);
}
@ -169,7 +184,6 @@ int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
rsi_set_len_qno(&data_desc->len_qno, (skb->len - FRAME_DESC_SZ),
RSI_WIFI_DATA_Q);
data_desc->header_len = ieee80211_size;
data_desc->xtend_desc_size = extnd_size;
if (common->min_rate != RSI_RATE_AUTO) {
/* Send fixed rate */
@ -184,6 +198,21 @@ int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
data_desc->rate_info |=
cpu_to_le16(ENABLE_SHORTGI_RATE);
}
}
if (skb->protocol == cpu_to_be16(ETH_P_PAE)) {
rsi_dbg(INFO_ZONE, "*** Tx EAPOL ***\n");
data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE);
if (common->band == NL80211_BAND_5GHZ)
data_desc->rate_info = cpu_to_le16(RSI_RATE_6);
else
data_desc->rate_info = cpu_to_le16(RSI_RATE_1);
data_desc->mac_flags |= cpu_to_le16(RSI_REKEY_PURPOSE);
data_desc->misc_flags |= RSI_FETCH_RETRY_CNT_FRM_HST;
#define EAPOL_RETRY_CNT 15
xtend_desc->retry_cnt = EAPOL_RETRY_CNT;
}
data_desc->mac_flags = cpu_to_le16(seq_num & 0xfff);
@ -191,7 +220,14 @@ int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
((tx_params->tid & 0xf) << 4));
data_desc->sta_id = tx_params->sta_id;
status = adapter->host_intf_ops->write_pkt(adapter, skb->data,
if ((is_broadcast_ether_addr(wh->addr1)) ||
(is_multicast_ether_addr(wh->addr1))) {
data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE);
data_desc->frame_info |= cpu_to_le16(RSI_BROADCAST_PKT);
data_desc->sta_id = vap_id;
}
status = adapter->host_intf_ops->write_pkt(common->priv, skb->data,
skb->len);
if (status)
rsi_dbg(ERR_ZONE, "%s: Failed to write pkt\n",

3
drivers/net/wireless/rsi/rsi_hal.h
View File

@ -131,7 +131,8 @@ struct rsi_mgmt_desc {
struct rsi_data_desc {
__le16 len_qno;
u16 reserved;
u8 cfm_frame_type;
u8 misc_flags;
u8 xtend_desc_size;
u8 header_len;
__le16 frame_info;

3
drivers/net/wireless/rsi/rsi_mgmt.h
View File

@ -64,7 +64,10 @@
#define RATE_INFO_ENABLE BIT(0)
#define RSI_BROADCAST_PKT BIT(9)
#define RSI_DESC_REQUIRE_CFM_TO_HOST BIT(2)
#define RSI_ADD_DELTA_TSF_VAP_ID BIT(3)
#define RSI_FETCH_RETRY_CNT_FRM_HST BIT(4)
#define RSI_QOS_ENABLE BIT(12)
#define RSI_REKEY_PURPOSE BIT(13)
#define RSI_ENCRYPT_PKT BIT(15)
#define UPPER_20_ENABLE (0x2 << 12)