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authorBen Cahill <ben.m.cahill@intel.com>2007-11-29 11:09:49 +0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:05:19 -0800
commitbc47279f558e7e9ea70dad1d484d2816ec239bb0 (patch)
treebe0b2be7b15e70df44f85f5c8bd8c3b9f21bc69d /drivers/net/wireless/iwlwifi/iwl-3945.h
parent81cd110d818dd4649cbac17f95f698a24c7acc45 (diff)
iwlwifi: Add comments to some driver data structures
Add comments to some driver data structures Remove unused "sched_retry" member from struct iwl3945_tx_queue Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-3945.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.h35
1 files changed, 31 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 02040ef10da..607a1ed542f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -130,6 +130,7 @@ struct iwl3945_queue {
#define MAX_NUM_OF_TBS (20)
+/* One for each TFD */
struct iwl3945_tx_info {
struct ieee80211_tx_status status;
struct sk_buff *skb[MAX_NUM_OF_TBS];
@@ -137,10 +138,15 @@ struct iwl3945_tx_info {
/**
* struct iwl3945_tx_queue - Tx Queue for DMA
- * @need_update: need to update read/write index
- * @shed_retry: queue is HT AGG enabled
+ * @q: generic Rx/Tx queue descriptor
+ * @bd: base of circular buffer of TFDs
+ * @cmd: array of command/Tx buffers
+ * @dma_addr_cmd: physical address of cmd/tx buffer array
+ * @txb: array of per-TFD driver data
+ * @need_update: indicates need to update read/write index
*
- * Queue consists of circular buffer of BD's and required locking structures.
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
*/
struct iwl3945_tx_queue {
struct iwl3945_queue q;
@@ -149,7 +155,6 @@ struct iwl3945_tx_queue {
dma_addr_t dma_addr_cmd;
struct iwl3945_tx_info *txb;
int need_update;
- int sched_retry;
int active;
};
@@ -325,6 +330,13 @@ struct iwl3945_cmd_meta {
} __attribute__ ((packed));
+/**
+ * struct iwl3945_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for a scan command
+ * (which is relatively huge; space is allocated separately).
+ */
struct iwl3945_cmd {
struct iwl3945_cmd_meta meta;
struct iwl3945_cmd_header hdr;
@@ -522,6 +534,19 @@ struct iwl3945_ibss_seq {
struct list_head list;
};
+/**
+ * struct iwl4965_driver_hw_info
+ * @max_txq_num: Max # Tx queues supported
+ * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
+ * @tx_cmd_len: Size of Tx command (but not including frame itself)
+ * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
+ * @rx_buffer_size:
+ * @max_rxq_log: Log-base-2 of max_rxq_size
+ * @max_stations:
+ * @bcast_sta_id:
+ * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
+ * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
+ */
struct iwl3945_driver_hw_info {
u16 max_txq_num;
u16 ac_queue_count;
@@ -857,6 +882,8 @@ struct iwl3945_priv {
u16 last_seq_num;
u16 last_frag_num;
unsigned long last_packet_time;
+
+ /* Hash table for finding stations in IBSS network */
struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
/* eeprom */