diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.h | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h index d0abbb3a5ac..30001482c48 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965.h @@ -129,6 +129,7 @@ struct iwl4965_queue { #define MAX_NUM_OF_TBS (20) +/* One for each TFD */ struct iwl4965_tx_info { struct ieee80211_tx_status status; struct sk_buff *skb[MAX_NUM_OF_TBS]; @@ -136,10 +137,16 @@ struct iwl4965_tx_info { /** * struct iwl4965_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 + * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled * - * 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 iwl4965_tx_queue { struct iwl4965_queue q; @@ -332,9 +339,16 @@ struct iwl4965_cmd_meta { } __attribute__ ((packed)); +/** + * struct iwl4965_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 iwl4965_cmd { - struct iwl4965_cmd_meta meta; - struct iwl4965_cmd_header hdr; + struct iwl4965_cmd_meta meta; /* driver data */ + struct iwl4965_cmd_header hdr; /* uCode API */ union { struct iwl4965_addsta_cmd addsta; struct iwl4965_led_cmd led; @@ -436,6 +450,20 @@ struct iwl4965_rx_queue { #ifdef CONFIG_IWL4965_HT #ifdef CONFIG_IWL4965_HT_AGG +/** + * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack + * @txq_id: Tx queue used for Tx attempt + * @frame_count: # frames attempted by Tx command + * @wait_for_ba: Expect block-ack before next Tx reply + * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window + * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window + * @bitmap1: High order, one bit for each frame pending ACK in Tx window + * @rate_n_flags: Rate at which Tx was attempted + * + * If REPLY_TX indicates that aggregation was attempted, driver must wait + * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info + * until block ack arrives. + */ struct iwl4965_ht_agg { u16 txq_id; u16 frame_count; @@ -566,6 +594,19 @@ struct iwl4965_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 iwl4965_driver_hw_info { u16 max_txq_num; u16 ac_queue_count; @@ -1149,10 +1190,11 @@ struct iwl4965_priv { u8 call_post_assoc_from_beacon; u8 assoc_station_added; u8 use_ant_b_for_management_frame; /* Tx antenna selection */ - /* HT variables */ + + /* High Throughput (HT) variables */ u8 is_dup; u8 is_ht_enabled; - u8 channel_width; /* 0=20MHZ, 1=40MHZ */ + u8 channel_width; /* 0=20MHZ, 1=40MHZ supported */ u8 current_channel_width; u8 valid_antenna; /* Bit mask of antennas actually connected */ #ifdef CONFIG_IWL4965_SENSITIVITY @@ -1229,6 +1271,8 @@ struct iwl4965_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 */ |