diff options
| author | Ron Rindjunsky <ron.rindjunsky@intel.com> | 2007-11-26 17:14:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-29 02:05:46 +0300 |
| commit | 9ee1ba474fc37bcaf6a958bf7e995006fc69893b (patch) | |
| tree | 42224488712bfd808909ce48e0a4c2a8bc69c606 /drivers/net/wireless/iwlwifi/iwl-4965.c | |
| parent | 270243a50574455f593378377c0fa74284730f7d (diff) | |
| download | linux-9ee1ba474fc37bcaf6a958bf7e995006fc69893b.tar.xz | |
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>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 55d61000e342..f65fd6e5fecc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -226,6 +226,7 @@ static int iwl4965_rx_init(struct iwl4965_priv *priv, struct iwl4965_rx_queue *r { int rc; unsigned long flags; + unsigned int rb_size; spin_lock_irqsave(&priv->lock, flags); rc = iwl4965_grab_nic_access(priv); @@ -234,6 +235,11 @@ static int iwl4965_rx_init(struct iwl4965_priv *priv, struct iwl4965_rx_queue *r return rc; } + if (iwl4965_param_amsdu_size_8K) + rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K; + else + rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; + /* Stop Rx DMA */ iwl4965_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); @@ -253,7 +259,7 @@ static int iwl4965_rx_init(struct iwl4965_priv *priv, struct iwl4965_rx_queue *r iwl4965_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | - IWL_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K | + rb_size | /*0x10 << 4 | */ (RX_QUEUE_SIZE_LOG << FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT)); @@ -1771,7 +1777,11 @@ int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv) priv->hw_setting.tx_cmd_len = sizeof(struct iwl4965_tx_cmd); priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE; priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG; - + if (iwl4965_param_amsdu_size_8K) + priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE_8K; + else + priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE_4K; + priv->hw_setting.max_pkt_size = priv->hw_setting.rx_buf_size - 256; priv->hw_setting.max_stations = IWL4965_STATION_COUNT; priv->hw_setting.bcast_sta_id = IWL4965_BROADCAST_ID; return 0; @@ -3619,7 +3629,7 @@ static void iwl4965_handle_data_packet(struct iwl4965_priv *priv, int is_data, rx_start->byte_count = amsdu->byte_count; rx_end = (__le32 *) (((u8 *) hdr) + len); } - if (len > IWL_RX_BUF_SIZE || len < 16) { + if (len > priv->hw_setting.max_pkt_size || len < 16) { IWL_WARNING("byte count out of range [16,4K]" " : %d\n", len); return; @@ -3785,6 +3795,10 @@ void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info, int mode) ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20; ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS & (IWL_MIMO_PS_NONE << 2)); + if (iwl4965_param_amsdu_size_8K) { + printk(KERN_DEBUG "iwl4965 in A-MSDU 8K support mode\n"); + ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU; + } ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; |