iwlwifi: transport: track number of allocated queues

As the transport will decide how many queues (and MSI-X vectors)
to allocate, add a field to indicate that to the op-mode so it
can size/allocate its own data structures appropriately.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/iwlwifi/iwl-trans.c

@@ -87,6 +87,7 @@ struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
 	trans->cfg = cfg;
 	trans->ops = ops;
 	trans->dev_cmd_headroom = dev_cmd_headroom;
+	trans->num_rx_queues = 1;
 
 	snprintf(trans->dev_cmd_pool_name, sizeof(trans->dev_cmd_pool_name),
 		 "iwl_cmd_pool:%s", dev_name(trans->dev));

drivers/net/wireless/iwlwifi/iwl-trans.h

@@ -386,6 +386,7 @@ static inline void iwl_free_rxb(struct iwl_rx_cmd_buffer *r)
 #define IWL_MAX_HW_QUEUES		32
 #define IWL_MAX_TID_COUNT	8
 #define IWL_FRAME_LIMIT	64
+#define IWL_MAX_RX_HW_QUEUES	16
 
 /**
  * enum iwl_wowlan_status - WoWLAN image/device status
@@ -654,6 +655,8 @@ enum iwl_d0i3_mode {
  * @hw_id_str: a string with info about HW ID. Set during transport allocation.
  * @pm_support: set to true in start_hw if link pm is supported
  * @ltr_enabled: set to true if the LTR is enabled
+ * @num_rx_queues: number of RX queues allocated by the transport;
+ *	the transport must set this before calling iwl_drv_start()
  * @dev_cmd_pool: pool for Tx cmd allocation - for internal use only.
  *	The user should use iwl_trans_{alloc,free}_tx_cmd.
  * @dev_cmd_headroom: room needed for the transport's private use before the
@@ -693,6 +696,8 @@ struct iwl_trans {
 	bool pm_support;
 	bool ltr_enabled;
 
+	u8 num_rx_queues;
+
 	/* The following fields are internal only */
 	struct kmem_cache *dev_cmd_pool;
 	size_t dev_cmd_headroom;