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path: root/drivers/net/wireless/iwlwifi/iwl-rx.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c105
1 files changed, 22 insertions, 83 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 0509c16dbe7..8d2b73e194d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -218,8 +218,7 @@ int iwl_rx_queue_restock(struct iwl_priv *priv)
/* If we've added more space for the firmware to place data, tell it.
* Increment device's write pointer in multiples of 8. */
- if ((write != (rxq->write & ~0x7))
- || (abs(rxq->write - rxq->read) > 7)) {
+ if (write != (rxq->write & ~0x7)) {
spin_lock_irqsave(&rxq->lock, flags);
rxq->need_update = 1;
spin_unlock_irqrestore(&rxq->lock, flags);
@@ -317,7 +316,10 @@ void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
+ pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
+ rxq->rb_stts, rxq->rb_stts_dma);
rxq->bd = NULL;
+ rxq->rb_stts = NULL;
}
EXPORT_SYMBOL(iwl_rx_queue_free);
@@ -334,7 +336,12 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv)
/* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
if (!rxq->bd)
- return -ENOMEM;
+ goto err_bd;
+
+ rxq->rb_stts = pci_alloc_consistent(dev, sizeof(struct iwl_rb_status),
+ &rxq->rb_stts_dma);
+ if (!rxq->rb_stts)
+ goto err_rb;
/* Fill the rx_used queue with _all_ of the Rx buffers */
for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
@@ -346,6 +353,12 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv)
rxq->free_count = 0;
rxq->need_update = 0;
return 0;
+
+err_rb:
+ pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->dma_addr);
+err_bd:
+ return -ENOMEM;
}
EXPORT_SYMBOL(iwl_rx_queue_alloc);
@@ -412,10 +425,10 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
/* Tell device where in DRAM to update its Rx status */
iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
- (priv->shared_phys + priv->rb_closed_offset) >> 4);
+ rxq->rb_stts_dma >> 4);
/* Enable Rx DMA
- * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set becuase of HW bug in
+ * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set because of HW bug in
* the credit mechanism in 5000 HW RX FIFO
* Direct rx interrupts to hosts
* Rx buffer size 4 or 8k
@@ -426,6 +439,7 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY |
FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
+ FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME |
rb_size|
(rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)|
(rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS));
@@ -485,49 +499,6 @@ void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
}
EXPORT_SYMBOL(iwl_rx_missed_beacon_notif);
-int iwl_rx_agg_start(struct iwl_priv *priv, const u8 *addr, int tid, u16 ssn)
-{
- unsigned long flags;
- int sta_id;
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
- priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC);
-}
-EXPORT_SYMBOL(iwl_rx_agg_start);
-
-int iwl_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid)
-{
- unsigned long flags;
- int sta_id;
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
- priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC);
-}
-EXPORT_SYMBOL(iwl_rx_agg_stop);
-
/* Calculate noise level, based on measurements during network silence just
* before arriving beacon. This measurement can be done only if we know
@@ -1003,38 +974,6 @@ static inline int iwl_calc_rssi(struct iwl_priv *priv,
}
-static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.sta.modify_mask = 0;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
-}
-
-static void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
-{
- /* FIXME: need locking over ps_status ??? */
- u8 sta_id = iwl_find_station(priv, addr);
-
- if (sta_id != IWL_INVALID_STATION) {
- u8 sta_awake = priv->stations[sta_id].
- ps_status == STA_PS_STATUS_WAKE;
-
- if (sta_awake && ps_bit)
- priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
- else if (!sta_awake && !ps_bit) {
- iwl_sta_modify_ps_wake(priv, sta_id);
- priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
- }
- }
-}
-
/* This is necessary only for a number of statistics, see the caller. */
static int iwl_is_network_packet(struct iwl_priv *priv,
struct ieee80211_hdr *header)
@@ -1157,7 +1096,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
/* Set "1" to report good data frames in groups of 100 */
- /* FIXME: need to optimze the call: */
+ /* FIXME: need to optimize the call: */
iwl_dbg_report_frame(priv, pkt, header, 1);
IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n",
@@ -1168,12 +1107,12 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
* "antenna number"
*
* It seems that the antenna field in the phy flags value
- * is actually a bitfield. This is undefined by radiotap,
+ * is actually a bit field. This is undefined by radiotap,
* it wants an actual antenna number but I always get "7"
* for most legacy frames I receive indicating that the
* same frame was received on all three RX chains.
*
- * I think this field should be removed in favour of a
+ * I think this field should be removed in favor of a
* new 802.11n radiotap field "RX chains" that is defined
* as a bitmask.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-15 18:13:30 +0000