iwlwifi: 802.11n add support to 8K A-MSDU Rx frames

This patch give the iwlwifi the ability to support A-MSDU up to 8K

Please notice - in order to work in 8K A-MSDU ucode support is needed,
version 4.44.1.19 (soon to be published). 4K A-MSDU works in current ucode
version as well.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 29 insertions, 2 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 263b0b71c0c3..709203a41986 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -75,6 +75,7 @@ enum iwl3945_antenna {
  * else RTS for data/management frames where MPDU is larger
  *   than RTS value.
  */
+#define IWL_RX_BUF_SIZE           3000U
 #define DEFAULT_RTS_THRESHOLD     2347U
 #define MIN_RTS_THRESHOLD         0U
 #define MAX_RTS_THRESHOLD         2347U
@@ -452,6 +453,30 @@ union iwl3945_ht_rate_supp {
         };
 };
 
+#ifdef CONFIG_IWL3945_HT
+#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
+#define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
+#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
+
+struct sta_ht_info {
+        u8 is_ht;
+        u16 rx_mimo_ps_mode;
+        u16 tx_mimo_ps_mode;
+        u16 control_channel;
+        u8 max_amsdu_size;
+        u8 ampdu_factor;
+        u8 mpdu_density;
+        u8 operating_mode;
+        u8 supported_chan_width;
+        u8 extension_chan_offset;
+        u8 is_green_field;
+        u8 sgf;
+        u8 supp_rates[16];
+        u8 tx_chan_width;
+        u8 chan_width_cap;
+};
+#endif                          /*CONFIG_IWL3945_HT */
+
 #ifdef CONFIG_IWL3945_QOS
 
 union iwl3945_qos_capabity {
@@ -535,7 +560,8 @@ struct iwl3945_ibss_seq {
  * @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:
+ * @rx_buf_size:
+ * @max_pkt_size:
  * @max_rxq_log: Log-base-2 of max_rxq_size
  * @max_stations:
  * @bcast_sta_id:
@@ -547,7 +573,8 @@ struct iwl3945_driver_hw_info {
         u16 ac_queue_count;
         u16 tx_cmd_len;
         u16 max_rxq_size;
-        u32 rx_buffer_size;
+        u32 rx_buf_size;
+        u32 max_pkt_size;
         u16 max_rxq_log;
         u8  max_stations;
         u8  bcast_sta_id;