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iwlwifi: virtualize op_mode's stop/start queue 

Export them as "queue_full" and "queue_not_full" notification.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-02-09 16:08:15 +02:00 committed by Wey-Yi Guy
parent db70f290e1
commit 02e3835884
6 changed files with 31 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1386,6 +1386,8 @@ const struct iwl_op_mode_ops iwl_dvm_ops = {
.start = iwl_op_mode_dvm_start,
.stop = iwl_op_mode_dvm_stop,
.rx = iwl_rx_dispatch,
.queue_full = iwl_stop_sw_queue,
.queue_not_full = iwl_wake_sw_queue,
.free_skb = iwl_free_skb,
};

3
drivers/net/wireless/iwlwifi/iwl-agn.h
View File

@ -84,6 +84,9 @@ void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb);
int __must_check iwl_rx_dispatch(struct iwl_op_mode *op_mode,
struct iwl_rx_mem_buffer *rxb,
struct iwl_device_cmd *cmd);
void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac);
void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, u8 ac);
/* MAC80211 */
struct ieee80211_hw *iwl_alloc_all(void);

8
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -1475,12 +1475,16 @@ void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
dev_kfree_skb_any(skb);
}
void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac)
void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac)
{
struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
ieee80211_stop_queue(priv->hw, ac);
}
void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac)
void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, u8 ac)
{
struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
ieee80211_wake_queue(priv->hw, ac);
}

17
drivers/net/wireless/iwlwifi/iwl-op-mode.h
View File

@ -80,6 +80,10 @@ struct iwl_rx_mem_buffer;
* May sleep
* @rx: Rx notification to the op_mode. rxb is the Rx buffer itself. Cmd is the
* HCMD the this Rx responds to.
* @queue_full: notifies that a HW queue is full. Ac is the ac of the queue
* Must be atomic
* @queue_not_full: notifies that a HW queue is not full any more.
* Ac is the ac of the queue. Must be atomic
* @free_skb: allows the transport layer to free skbs that haven't been
* reclaimed by the op_mode. This can happen when the driver is freed and
* there are Tx packets pending in the transport layer.
@ -90,6 +94,8 @@ struct iwl_op_mode_ops {
void (*stop)(struct iwl_op_mode *op_mode);
int (*rx)(struct iwl_op_mode *op_mode, struct iwl_rx_mem_buffer *rxb,
struct iwl_device_cmd *cmd);
void (*queue_full)(struct iwl_op_mode *op_mode, u8 ac);
void (*queue_not_full)(struct iwl_op_mode *op_mode, u8 ac);
void (*free_skb)(struct iwl_op_mode *op_mode, struct sk_buff *skb);
};
@ -119,6 +125,17 @@ static inline int iwl_op_mode_rx(struct iwl_op_mode *op_mode,
return op_mode->ops->rx(op_mode, rxb, cmd);
}
static inline void iwl_op_mode_queue_full(struct iwl_op_mode *op_mode, u8 ac)
{
op_mode->ops->queue_full(op_mode, ac);
}
static inline void iwl_op_mode_queue_not_full(struct iwl_op_mode *op_mode,
u8 ac)
{
op_mode->ops->queue_not_full(op_mode, ac);
}
static inline void iwl_op_mode_free_skb(struct iwl_op_mode *op_mode,
struct sk_buff *skb)
{

2
drivers/net/wireless/iwlwifi/iwl-shared.h
View File

@ -539,8 +539,6 @@ void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand);
const char *get_cmd_string(u8 cmd);
bool iwl_check_for_ct_kill(struct iwl_priv *priv);
void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac);
void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac);
/* notification wait support */
void iwl_abort_notification_waits(struct iwl_shared *shrd);

5
drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
View File

@ -40,6 +40,7 @@
#include "iwl-trans.h"
#include "iwl-debug.h"
#include "iwl-io.h"
#include "iwl-op-mode.h"
struct iwl_tx_queue;
struct iwl_queue;
@ -374,7 +375,7 @@ static inline void iwl_wake_queue(struct iwl_trans *trans,
if (test_and_clear_bit(hwq, trans_pcie->queue_stopped)) {
if (atomic_dec_return(&trans_pcie->queue_stop_count[ac]) <= 0) {
iwl_wake_sw_queue(priv(trans), ac);
iwl_op_mode_queue_not_full(trans->op_mode, ac);
IWL_DEBUG_TX_QUEUES(trans, "Wake hwq %d ac %d. %s",
hwq, ac, msg);
} else {
@ -397,7 +398,7 @@ static inline void iwl_stop_queue(struct iwl_trans *trans,
if (!test_and_set_bit(hwq, trans_pcie->queue_stopped)) {
if (atomic_inc_return(&trans_pcie->queue_stop_count[ac]) > 0) {
iwl_stop_sw_queue(priv(trans), ac);
iwl_op_mode_queue_full(trans->op_mode, ac);
IWL_DEBUG_TX_QUEUES(trans, "Stop hwq %d ac %d"
" stop count %d. %s",
hwq, ac, atomic_read(&trans_pcie->