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@xxxxxxxxx> --- drivers/net/wireless/iwlwifi/iwl-3945-hw.h | 1 - drivers/net/wireless/iwlwifi/iwl-3945.c | 3 ++- drivers/net/wireless/iwlwifi/iwl-3945.h | 5 +++-- drivers/net/wireless/iwlwifi/iwl-4965-hw.h | 14 +++++++++----- drivers/net/wireless/iwlwifi/iwl-4965.c | 20 +++++++++++++++++--- drivers/net/wireless/iwlwifi/iwl-4965.h | 5 +++-- drivers/net/wireless/iwlwifi/iwl4965-base.c | 21 ++++++++++++++------- 7 files changed, 48 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h index 0a5a08d..fb362ff 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h @@ -691,7 +691,6 @@ struct iwl_eeprom { #define RX_LOW_WATERMARK 8 -#define IWL_RX_BUF_SIZE 3000 /* card static random access memory (SRAM) for processor data and instructs */ #define ALM_RTC_INST_UPPER_BOUND (0x014000) #define ALM_RTC_DATA_UPPER_BOUND (0x808000) diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index e9cb40e..4cd0ed8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2197,7 +2197,8 @@ int iwl_hw_set_hw_setting(struct iwl_priv *priv) } priv->hw_setting.ac_queue_count = AC_NUM; - priv->hw_setting.rx_buffer_size = IWL_RX_BUF_SIZE; + priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE; + priv->hw_setting.max_pkt_size = 2342; priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd); priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE; priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG; diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h index d1616bf..a5332ac 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945.h @@ -72,6 +72,7 @@ enum iwl_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 @@ -447,7 +448,6 @@ union iwl_ht_rate_supp { #ifdef CONFIG_IWL3945_HT #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) -#define HT_IE_MAX_AMSDU_SIZE_4K (0) #define CFG_HT_MPDU_DENSITY_2USEC (0x5) #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC @@ -552,7 +552,8 @@ struct iwl_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; diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h index 21c7577..61b57ac 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h @@ -740,8 +740,8 @@ struct iwl_eeprom { #define RX_FREE_BUFFERS 64 #define RX_LOW_WATERMARK 8 - -#define IWL_RX_BUF_SIZE (4 * 1024) +#define IWL_RX_BUF_SIZE_4K (4 * 1024) +#define IWL_RX_BUF_SIZE_8K (8 * 1024) #define IWL_MAX_BSM_SIZE BSM_SRAM_SIZE #define KDR_RTC_INST_UPPER_BOUND (0x018000) #define KDR_RTC_DATA_UPPER_BOUND (0x80A000) @@ -1055,15 +1055,19 @@ union iwl_tx_power_dual_stream { #define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MASK (0x00001000) /* bit 12 */ #define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MASK (0x00000FF0) /* bit 4-11 */ -#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT (20) -#define FH_RCSR_RX_CONFIG_RB_SIZE_BITSHIFT (16) +#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT (20) +#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_BITSHIFT (4) +#define RX_RB_TIMEOUT (0x10) /* RCSR: rx_config register values */ #define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000) #define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000) #define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000) -#define IWL_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000) +#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000) +#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000) +#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000) +#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000) /* RCSR channel 0 config register values */ #define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 91fbf3d..ca61117 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 iwl_priv *priv, struct iwl_rx_queue *rxq) { int rc; unsigned long flags; + unsigned int rb_size; spin_lock_irqsave(&priv->lock, flags); rc = iwl_grab_nic_access(priv); @@ -234,6 +235,11 @@ static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) return rc; } + if (iwl_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 HW */ iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); @@ -248,7 +254,7 @@ static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) iwl_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)); @@ -1721,7 +1727,11 @@ int iwl_hw_set_hw_setting(struct iwl_priv *priv) priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd); priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE; priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG; - + if (iwl_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; @@ -3519,7 +3529,7 @@ static void iwl4965_handle_data_packet(struct iwl_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; @@ -3685,6 +3695,10 @@ 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 (iwl_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; diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h index 3494fc5..2ac9173 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965.h @@ -56,6 +56,7 @@ extern struct pci_device_id iwl_hw_card_ids[]; /* Module parameters accessible from iwl-*.c */ extern int iwl_param_hwcrypto; extern int iwl_param_queues_num; +extern int iwl_param_amsdu_size_8K; enum iwl_antenna { IWL_ANTENNA_DIVERSITY, @@ -473,7 +474,6 @@ union iwl_ht_rate_supp { #ifdef CONFIG_IWL4965_HT #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) -#define HT_IE_MAX_AMSDU_SIZE_4K (0) #define CFG_HT_MPDU_DENSITY_2USEC (0x5) #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC @@ -572,7 +572,8 @@ struct iwl_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; diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 95374f4..3bd030d 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -81,6 +81,7 @@ static int iwl_param_antenna; /* def: 0 = both antennas (use diversity) */ int iwl_param_hwcrypto; /* def: using software encryption */ static int iwl_param_qos_enable = 1; int iwl_param_queues_num = IWL_MAX_NUM_QUEUES; +int iwl_param_amsdu_size_8K; /* def: enable 8K amsdu size */ /* * module name, copyright, version, etc. @@ -3166,7 +3167,7 @@ void iwl_handle_data_packet_monitor(struct iwl_priv *priv, __le16 phy_flags_hw = cpu_to_le16(phy_flags); /* We received data from the HW, so stop the watchdog */ - if (len > IWL_RX_BUF_SIZE - sizeof(*iwl_rt)) { + if (len > priv->hw_setting.rx_buf_size - sizeof(*iwl_rt)) { IWL_DEBUG_DROP("Dropping too large packet in monitor\n"); return; } @@ -4395,7 +4396,8 @@ void iwl_rx_replenish(void *data) element = rxq->rx_used.next; rxb = list_entry(element, struct iwl_rx_mem_buffer, list); rxb->skb = - alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC); + alloc_skb(priv->hw_setting.rx_buf_size, + __GFP_NOWARN | GFP_ATOMIC); if (!rxb->skb) { if (net_ratelimit()) printk(KERN_CRIT DRV_NAME @@ -4409,7 +4411,7 @@ void iwl_rx_replenish(void *data) list_del(element); rxb->dma_addr = pci_map_single(priv->pci_dev, rxb->skb->data, - IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); + priv->hw_setting.rx_buf_size, PCI_DMA_FROMDEVICE); list_add_tail(&rxb->list, &rxq->rx_free); rxq->free_count++; } @@ -4432,7 +4434,8 @@ static void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) if (rxq->pool[i].skb != NULL) { pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, - IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); + priv->hw_setting.rx_buf_size, + PCI_DMA_FROMDEVICE); dev_kfree_skb(rxq->pool[i].skb); } } @@ -4479,7 +4482,8 @@ void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) if (rxq->pool[i].skb != NULL) { pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, - IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); + priv->hw_setting.rx_buf_size, + PCI_DMA_FROMDEVICE); priv->alloc_rxb_skb--; dev_kfree_skb(rxq->pool[i].skb); rxq->pool[i].skb = NULL; @@ -4606,7 +4610,7 @@ static void iwl_rx_handle(struct iwl_priv *priv) rxq->queue[i] = NULL; pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, - IWL_RX_BUF_SIZE, + priv->hw_setting.rx_buf_size, PCI_DMA_FROMDEVICE); pkt = (struct iwl_rx_packet *)rxb->skb->data; @@ -4659,7 +4663,8 @@ static void iwl_rx_handle(struct iwl_priv *priv) } pci_unmap_single(priv->pci_dev, rxb->dma_addr, - IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); + priv->hw_setting.rx_buf_size, + PCI_DMA_FROMDEVICE); spin_lock_irqsave(&rxq->lock, flags); list_add_tail(&rxb->list, &priv->rxq.rx_used); spin_unlock_irqrestore(&rxq->lock, flags); @@ -9302,6 +9307,8 @@ MODULE_PARM_DESC(queues_num, "number of hw queues."); /* QoS */ module_param_named(qos_enable, iwl_param_qos_enable, int, 0444); MODULE_PARM_DESC(qos_enable, "enable all QoS functionality"); +module_param_named(amsdu_size_8K, iwl_param_amsdu_size_8K, int, 0444); +MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); module_exit(iwl_exit); module_init(iwl_init); -- 1.5.3.3 --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). 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