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wireless-drivers fixes for 4.6 

iwlwifi
 
 * fix P2P rates (and possibly other issues)
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Merge tag 'wireless-drivers-for-davem-2016-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.6

iwlwifi

* fix P2P rates (and possibly other issues)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-05-10 01:02:51 -04:00
parent adc0a8bfdc cbbba30f1a
commit 5e769ada93
1 changed files with 48 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
View File

@ -105,6 +105,7 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
struct iwl_tx_cmd *tx_cmd,
struct ieee80211_tx_info *info, u8 sta_id)
{
struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
u32 tx_flags = le32_to_cpu(tx_cmd->tx_flags);
@ -185,7 +186,7 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
tx_cmd->tx_flags = cpu_to_le32(tx_flags);
/* Total # bytes to be transmitted */
tx_cmd->len = cpu_to_le16((u16)skb->len +
(uintptr_t)info->driver_data[0]);
(uintptr_t)skb_info->driver_data[0]);
tx_cmd->next_frame_len = 0;
tx_cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
tx_cmd->sta_id = sta_id;
@ -327,10 +328,11 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
*/
static struct iwl_device_cmd *
iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
int hdrlen, struct ieee80211_sta *sta, u8 sta_id)
struct ieee80211_tx_info *info, int hdrlen,
struct ieee80211_sta *sta, u8 sta_id)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
@ -350,10 +352,10 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);
memset(&info->status, 0, sizeof(info->status));
memset(info->driver_data, 0, sizeof(info->driver_data));
memset(&skb_info->status, 0, sizeof(skb_info->status));
memset(skb_info->driver_data, 0, sizeof(skb_info->driver_data));
info->driver_data[1] = dev_cmd;
skb_info->driver_data[1] = dev_cmd;
return dev_cmd;
}
@ -361,22 +363,25 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_info info;
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
u8 sta_id;
int hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU))
memcpy(&info, skb->cb, sizeof(info));
if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_AMPDU))
return -1;
if (WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
(!info->control.vif ||
info->hw_queue != info->control.vif->cab_queue)))
if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
(!info.control.vif ||
info.hw_queue != info.control.vif->cab_queue)))
return -1;
/* This holds the amsdu headers length */
info->driver_data[0] = (void *)(uintptr_t)0;
skb_info->driver_data[0] = (void *)(uintptr_t)0;
/*
* IWL_MVM_OFFCHANNEL_QUEUE is used for ROC packets that can be used
@ -385,7 +390,7 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
* and hence needs to be sent on the aux queue
*/
if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
info->control.vif->type == NL80211_IFTYPE_STATION)
info.control.vif->type == NL80211_IFTYPE_STATION)
IEEE80211_SKB_CB(skb)->hw_queue = mvm->aux_queue;
/*
@ -398,14 +403,14 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
* AUX station.
*/
sta_id = mvm->aux_sta.sta_id;
if (info->control.vif) {
if (info.control.vif) {
struct iwl_mvm_vif *mvmvif =
iwl_mvm_vif_from_mac80211(info->control.vif);
iwl_mvm_vif_from_mac80211(info.control.vif);
if (info->control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
info->control.vif->type == NL80211_IFTYPE_AP)
if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
info.control.vif->type == NL80211_IFTYPE_AP)
sta_id = mvmvif->bcast_sta.sta_id;
else if (info->control.vif->type == NL80211_IFTYPE_STATION &&
else if (info.control.vif->type == NL80211_IFTYPE_STATION &&
is_multicast_ether_addr(hdr->addr1)) {
u8 ap_sta_id = ACCESS_ONCE(mvmvif->ap_sta_id);
@ -414,19 +419,18 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
}
}
IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, info->hw_queue);
IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, info.hw_queue);
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, hdrlen, NULL, sta_id);
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, &info, hdrlen, NULL, sta_id);
if (!dev_cmd)
return -1;
/* From now on, we cannot access info->control */
tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, hdrlen);
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, info->hw_queue)) {
if (iwl_trans_tx(mvm->trans, skb, dev_cmd, info.hw_queue)) {
iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
return -1;
}
@ -445,11 +449,11 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
#ifdef CONFIG_INET
static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
struct ieee80211_tx_info *info,
struct ieee80211_sta *sta,
struct sk_buff_head *mpdus_skb)
{
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (void *)skb->data;
unsigned int mss = skb_shinfo(skb)->gso_size;
struct sk_buff *tmp, *next;
@ -544,6 +548,8 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
/* This skb fits in one single A-MSDU */
if (num_subframes * mss >= tcp_payload_len) {
struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
/*
* Compute the length of all the data added for the A-MSDU.
* This will be used to compute the length to write in the TX
@ -552,11 +558,10 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
* already had one set of SNAP / IP / TCP headers.
*/
num_subframes = DIV_ROUND_UP(tcp_payload_len, mss);
info = IEEE80211_SKB_CB(skb);
amsdu_add = num_subframes * sizeof(struct ethhdr) +
(num_subframes - 1) * (snap_ip_tcp + pad);
/* This holds the amsdu headers length */
info->driver_data[0] = (void *)(uintptr_t)amsdu_add;
skb_info->driver_data[0] = (void *)(uintptr_t)amsdu_add;
__skb_queue_tail(mpdus_skb, skb);
return 0;
@ -596,11 +601,14 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
ip_hdr(tmp)->id = htons(ip_base_id + i * num_subframes);
if (tcp_payload_len > mss) {
struct ieee80211_tx_info *skb_info =
IEEE80211_SKB_CB(tmp);
num_subframes = DIV_ROUND_UP(tcp_payload_len, mss);
info = IEEE80211_SKB_CB(tmp);
amsdu_add = num_subframes * sizeof(struct ethhdr) +
(num_subframes - 1) * (snap_ip_tcp + pad);
info->driver_data[0] = (void *)(uintptr_t)amsdu_add;
skb_info->driver_data[0] =
(void *)(uintptr_t)amsdu_add;
skb_shinfo(tmp)->gso_size = mss;
} else {
qc = ieee80211_get_qos_ctl((void *)tmp->data);
@ -622,6 +630,7 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
}
#else /* CONFIG_INET */
static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
struct ieee80211_tx_info *info,
struct ieee80211_sta *sta,
struct sk_buff_head *mpdus_skb)
{
@ -636,10 +645,10 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
* Sets the fields in the Tx cmd that are crypto related
*/
static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
struct ieee80211_tx_info *info,
struct ieee80211_sta *sta)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_mvm_sta *mvmsta;
struct iwl_device_cmd *dev_cmd;
struct iwl_tx_cmd *tx_cmd;
@ -660,7 +669,8 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
return -1;
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, hdrlen, sta, mvmsta->sta_id);
dev_cmd = iwl_mvm_set_tx_params(mvm, skb, info, hdrlen,
sta, mvmsta->sta_id);
if (!dev_cmd)
goto drop;
@ -736,7 +746,8 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
struct ieee80211_sta *sta)
{
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_info info;
struct sk_buff_head mpdus_skbs;
unsigned int payload_len;
int ret;
@ -747,21 +758,23 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
return -1;
memcpy(&info, skb->cb, sizeof(info));
/* This holds the amsdu headers length */
info->driver_data[0] = (void *)(uintptr_t)0;
skb_info->driver_data[0] = (void *)(uintptr_t)0;
if (!skb_is_gso(skb))
return iwl_mvm_tx_mpdu(mvm, skb, sta);
return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
tcp_hdrlen(skb) + skb->data_len;
if (payload_len <= skb_shinfo(skb)->gso_size)
return iwl_mvm_tx_mpdu(mvm, skb, sta);
return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
__skb_queue_head_init(&mpdus_skbs);
ret = iwl_mvm_tx_tso(mvm, skb, sta, &mpdus_skbs);
ret = iwl_mvm_tx_tso(mvm, skb, &info, sta, &mpdus_skbs);
if (ret)
return ret;
@ -771,7 +784,7 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
while (!skb_queue_empty(&mpdus_skbs)) {
skb = __skb_dequeue(&mpdus_skbs);
ret = iwl_mvm_tx_mpdu(mvm, skb, sta);
ret = iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
if (ret) {
__skb_queue_purge(&mpdus_skbs);
return ret;