* layer */
struct iwl_priv;
-struct iwl_rxon_context;
-struct iwl_host_cmd;
struct iwl_shared;
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+enum {
+ CMD_SYNC = 0,
+ CMD_ASYNC = BIT(0),
+ CMD_WANT_SKB = BIT(1),
+ CMD_ON_DEMAND = BIT(2),
+};
+
+#define DEF_CMD_PAYLOAD_SIZE 320
+
+/**
+ * struct iwl_device_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for commands that
+ * aren't fully copied and use other TFD space.
+ */
+struct iwl_device_cmd {
+ struct iwl_cmd_header hdr; /* uCode API */
+ union {
+ u32 flags;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+ struct iwl_tx_cmd tx;
+ struct iwl6000_channel_switch_cmd chswitch;
+ u8 payload[DEF_CMD_PAYLOAD_SIZE];
+ } __packed cmd;
+} __packed;
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
+
+#define IWL_MAX_CMD_TFDS 2
+
+enum iwl_hcmd_dataflag {
+ IWL_HCMD_DFL_NOCOPY = BIT(0),
+};
+
+/**
+ * struct iwl_host_cmd - Host command to the uCode
+ * @data: array of chunks that composes the data of the host command
+ * @reply_page: pointer to the page that holds the response to the host command
+ * @callback:
+ * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
+ * @len: array of the lenths of the chunks in data
+ * @dataflags:
+ * @id: id of the host command
+ */
+struct iwl_host_cmd {
+ const void *data[IWL_MAX_CMD_TFDS];
+ unsigned long reply_page;
+ void (*callback)(struct iwl_shared *shrd,
+ struct iwl_device_cmd *cmd,
+ struct iwl_rx_packet *pkt);
+ u32 flags;
+ u16 len[IWL_MAX_CMD_TFDS];
+ u8 dataflags[IWL_MAX_CMD_TFDS];
+ u8 id;
+};
+
/**
* struct iwl_trans_ops - transport specific operations
* @alloc: allocates the meta data (not the queues themselves)
* probe.
* @tx_start: starts and configures all the Tx fifo - usually done once the fw
* is alive.
+ * @wake_any_queue: wake all the queues of a specfic context IWL_RXON_CTX_*
* @stop_device:stops the whole device (embedded CPU put to reset)
* @send_cmd:send a host command
* @send_cmd_pdu:send a host command: flags can be CMD_*
- * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use
* @tx: send an skb
* @reclaim: free packet until ssn. Returns a list of freed packets.
- * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is
+ * @tx_agg_alloc: allocate resources for a TX BA session
+ * @tx_agg_setup: setup a tx queue for AMPDU - will be called once the HW is
* ready and a successful ADDBA response has been received.
- * @txq_agg_disable: de-configure a Tx queue to send AMPDUs
+ * @tx_agg_disable: de-configure a Tx queue to send AMPDUs
* @kick_nic: remove the RESET from the embedded CPU and let it run
* @free: release all the ressource for the transport layer itself such as
* irq, tasklet etc...
+ * @stop_queue: stop a specific queue
+ * @check_stuck_queue: check if a specific queue is stuck
+ * @wait_tx_queue_empty: wait until all tx queues are empty
* @dbgfs_register: add the dbgfs files under this directory. Files will be
* automatically deleted.
* @suspend: stop the device unless WoWLAN is configured
void (*stop_device)(struct iwl_trans *trans);
void (*tx_start)(struct iwl_trans *trans);
+ void (*wake_any_queue)(struct iwl_trans *trans, u8 ctx);
+
int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
int (*send_cmd_pdu)(struct iwl_trans *trans, u8 id, u32 flags, u16 len,
const void *data);
- struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_trans *trans, int txq_id);
- int (*tx)(struct iwl_priv *priv, struct sk_buff *skb,
- struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu);
- void (*reclaim)(struct iwl_trans *trans, int txq_id, int ssn,
- u32 status, struct sk_buff_head *skbs);
-
- int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id);
- void (*txq_agg_setup)(struct iwl_priv *priv,
+ int (*tx)(struct iwl_trans *trans, struct sk_buff *skb,
+ struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id);
+ void (*reclaim)(struct iwl_trans *trans, int sta_id, int tid,
+ int txq_id, int ssn, u32 status,
+ struct sk_buff_head *skbs);
+
+ int (*tx_agg_disable)(struct iwl_trans *trans,
enum iwl_rxon_context_id ctx, int sta_id,
- int tid, int frame_limit);
+ int tid);
+ int (*tx_agg_alloc)(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx, int sta_id, int tid,
+ u16 *ssn);
+ void (*tx_agg_setup)(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx, int sta_id, int tid,
+ int frame_limit);
void (*kick_nic)(struct iwl_trans *trans);
void (*free)(struct iwl_trans *trans);
+ void (*stop_queue)(struct iwl_trans *trans, int q);
+
int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir);
+ int (*check_stuck_queue)(struct iwl_trans *trans, int q);
+ int (*wait_tx_queue_empty)(struct iwl_trans *trans);
+
int (*suspend)(struct iwl_trans *trans);
int (*resume)(struct iwl_trans *trans);
};
trans->ops->tx_start(trans);
}
+static inline void iwl_trans_wake_any_queue(struct iwl_trans *trans, u8 ctx)
+{
+ trans->ops->wake_any_queue(trans, ctx);
+}
+
+
static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
struct iwl_host_cmd *cmd)
{
return trans->ops->send_cmd_pdu(trans, id, flags, len, data);
}
-static inline struct iwl_tx_cmd *iwl_trans_get_tx_cmd(struct iwl_trans *trans,
- int txq_id)
+static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
+ struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id)
{
- return trans->ops->get_tx_cmd(trans, txq_id);
+ return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id);
}
-static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
- struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu)
+static inline void iwl_trans_reclaim(struct iwl_trans *trans, int sta_id,
+ int tid, int txq_id, int ssn, u32 status,
+ struct sk_buff_head *skbs)
{
- return trans->ops->tx(priv(trans), skb, tx_cmd, txq_id, fc, ampdu);
+ trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn, status, skbs);
}
-static inline void iwl_trans_reclaim(struct iwl_trans *trans, int txq_id,
- int ssn, u32 status,
- struct sk_buff_head *skbs)
+static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx,
+ int sta_id, int tid)
{
- trans->ops->reclaim(trans, txq_id, ssn, status, skbs);
+ return trans->ops->tx_agg_disable(trans, ctx, sta_id, tid);
}
-static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id)
+static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx,
+ int sta_id, int tid, u16 *ssn)
{
- return trans->ops->txq_agg_disable(priv(trans), txq_id);
+ return trans->ops->tx_agg_alloc(trans, ctx, sta_id, tid, ssn);
}
-static inline void iwl_trans_txq_agg_setup(struct iwl_trans *trans,
+
+static inline void iwl_trans_tx_agg_setup(struct iwl_trans *trans,
enum iwl_rxon_context_id ctx,
int sta_id, int tid,
int frame_limit)
{
- trans->ops->txq_agg_setup(priv(trans), ctx, sta_id, tid, frame_limit);
+ trans->ops->tx_agg_setup(trans, ctx, sta_id, tid, frame_limit);
}
static inline void iwl_trans_kick_nic(struct iwl_trans *trans)
trans->ops->free(trans);
}
+static inline void iwl_trans_stop_queue(struct iwl_trans *trans, int q)
+{
+ trans->ops->stop_queue(trans, q);
+}
+
+static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans)
+{
+ return trans->ops->wait_tx_queue_empty(trans);
+}
+
+static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q)
+{
+ return trans->ops->check_stuck_queue(trans, q);
+}
static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
struct dentry *dir)
{
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