From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
tx start will start the tx queues: basically configure the SCD
Remove the IWLAGN prefix to SCD defines on the way.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Wey-Yi Guy <wey-yi.guy@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 51 ++++-----
drivers/net/wireless/iwlwifi/iwl-agn-ucode.c | 136 +-----------------------
drivers/net/wireless/iwlwifi/iwl-agn.h | 1 -
drivers/net/wireless/iwlwifi/iwl-dev.h | 4 +-
drivers/net/wireless/iwlwifi/iwl-prph.h | 82 +++++++-------
drivers/net/wireless/iwlwifi/iwl-trans.c | 153 +++++++++++++++++++++++++-
drivers/net/wireless/iwlwifi/iwl-trans.h | 5 +
7 files changed, 222 insertions(+), 210 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 554750d..ece3202 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -166,10 +166,10 @@ static int iwlagn_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
u32 tbl_dw;
u16 scd_q2ratid;
- scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
+ scd_q2ratid = ra_tid & SCD_QUEUE_RA_TID_MAP_RATID_MSK;
tbl_dw_addr = priv->scd_base_addr +
- IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
+ SCD_TRANS_TBL_OFFSET_QUEUE(txq_id);
tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr);
@@ -188,9 +188,9 @@ static void iwlagn_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id)
/* Simply stop the queue, but don't change any configuration;
* the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
iwl_write_prph(priv,
- IWLAGN_SCD_QUEUE_STATUS_BITS(txq_id),
- (0 << IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (1 << IWLAGN_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+ SCD_QUEUE_STATUS_BITS(txq_id),
+ (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
+ (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
}
void iwlagn_set_wr_ptrs(struct iwl_priv *priv,
@@ -198,7 +198,7 @@ void iwlagn_set_wr_ptrs(struct iwl_priv *priv,
{
iwl_write_direct32(priv, HBUS_TARG_WRPTR,
(index & 0xff) | (txq_id << 8));
- iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(txq_id), index);
+ iwl_write_prph(priv, SCD_QUEUE_RDPTR(txq_id), index);
}
void iwlagn_tx_queue_set_status(struct iwl_priv *priv,
@@ -208,11 +208,11 @@ void iwlagn_tx_queue_set_status(struct iwl_priv *priv,
int txq_id = txq->q.id;
int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
- iwl_write_prph(priv, IWLAGN_SCD_QUEUE_STATUS_BITS(txq_id),
- (active << IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
- (tx_fifo_id << IWLAGN_SCD_QUEUE_STTS_REG_POS_TXF) |
- (1 << IWLAGN_SCD_QUEUE_STTS_REG_POS_WSL) |
- IWLAGN_SCD_QUEUE_STTS_REG_MSK);
+ iwl_write_prph(priv, SCD_QUEUE_STATUS_BITS(txq_id),
+ (active << SCD_QUEUE_STTS_REG_POS_ACTIVE) |
+ (tx_fifo_id << SCD_QUEUE_STTS_REG_POS_TXF) |
+ (1 << SCD_QUEUE_STTS_REG_POS_WSL) |
+ SCD_QUEUE_STTS_REG_MSK);
txq->sched_retry = scd_retry;
@@ -271,10 +271,10 @@ void iwlagn_txq_agg_queue_setup(struct iwl_priv *priv,
iwlagn_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
/* Set this queue as a chain-building queue */
- iwl_set_bits_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL, (1<<txq_id));
+ iwl_set_bits_prph(priv, SCD_QUEUECHAIN_SEL, (1<<txq_id));
/* enable aggregations for the queue */
- iwl_set_bits_prph(priv, IWLAGN_SCD_AGGR_SEL, (1<<txq_id));
+ iwl_set_bits_prph(priv, SCD_AGGR_SEL, (1<<txq_id));
/* Place first TFD at index corresponding to start sequence number.
* Assumes that ssn_idx is valid (!= 0xFFF) */
@@ -284,16 +284,16 @@ void iwlagn_txq_agg_queue_setup(struct iwl_priv *priv,
/* Set up Tx window size and frame limit for this queue */
iwl_write_targ_mem(priv, priv->scd_base_addr +
- IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(txq_id) +
+ SCD_CONTEXT_QUEUE_OFFSET(txq_id) +
sizeof(u32),
((frame_limit <<
- IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
- IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
+ SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
+ SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
((frame_limit <<
- IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
- IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
+ SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
+ SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
- iwl_set_bits_prph(priv, IWLAGN_SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl_set_bits_prph(priv, SCD_INTERRUPT_MASK, (1 << txq_id));
/* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
iwlagn_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
@@ -317,29 +317,20 @@ static int iwlagn_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
iwlagn_tx_queue_stop_scheduler(priv, txq_id);
- iwl_clear_bits_prph(priv, IWLAGN_SCD_AGGR_SEL, (1 << txq_id));
+ iwl_clear_bits_prph(priv, SCD_AGGR_SEL, (1 << txq_id));
priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
/* supposes that ssn_idx is valid (!= 0xFFF) */
iwlagn_set_wr_ptrs(priv, txq_id, ssn_idx);
- iwl_clear_bits_prph(priv, IWLAGN_SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl_clear_bits_prph(priv, SCD_INTERRUPT_MASK, (1 << txq_id));
iwl_txq_ctx_deactivate(priv, txq_id);
iwlagn_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
return 0;
}
-/*
- * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
- * must be called under priv->lock and mac access
- */
-void iwlagn_txq_set_sched(struct iwl_priv *priv, u32 mask)
-{
- iwl_write_prph(priv, IWLAGN_SCD_TXFACT, mask);
-}
-
static void iwlagn_tx_cmd_protection(struct iwl_priv *priv,
struct ieee80211_tx_info *info,
__le16 fc, __le32 *tx_flags)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
index c15a1f7..aebd5c7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
@@ -41,38 +41,6 @@
#include "iwl-agn-calib.h"
#include "iwl-trans.h"
-#define IWL_AC_UNSET -1
-
-struct queue_to_fifo_ac {
- s8 fifo, ac;
-};
-
-static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = {
- { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
- { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
- { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
- { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
- { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
- { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
- { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
- { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
- { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
- { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
-};
-
-static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = {
- { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
- { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
- { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
- { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
- { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, },
- { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, },
- { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, },
- { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, },
- { IWL_TX_FIFO_BE_IPAN, 2, },
- { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
-};
-
static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
{COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
0, COEX_UNASSOC_IDLE_FLAGS},
@@ -379,111 +347,9 @@ int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
static int iwlagn_alive_notify(struct iwl_priv *priv)
{
- const struct queue_to_fifo_ac *queue_to_fifo;
- struct iwl_rxon_context *ctx;
- u32 a;
- unsigned long flags;
- int i, chan;
- u32 reg_val;
int ret;
- spin_lock_irqsave(&priv->lock, flags);
-
- priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR);
- a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND;
- /* reset conext data memory */
- for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND;
- a += 4)
- iwl_write_targ_mem(priv, a, 0);
- /* reset tx status memory */
- for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND;
- a += 4)
- iwl_write_targ_mem(priv, a, 0);
- for (; a < priv->scd_base_addr +
- IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4)
- iwl_write_targ_mem(priv, a, 0);
-
- iwl_write_prph(priv, IWLAGN_SCD_DRAM_BASE_ADDR,
- priv->scd_bc_tbls.dma >> 10);
-
- /* Enable DMA channel */
- for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++)
- iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
-
- /* Update FH chicken bits */
- reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
- iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
- reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
-
- iwl_write_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL,
- IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv));
- iwl_write_prph(priv, IWLAGN_SCD_AGGR_SEL, 0);
-
- /* initiate the queues */
- for (i = 0; i < priv->hw_params.max_txq_num; i++) {
- iwl_write_prph(priv, IWLAGN_SCD_QUEUE_RDPTR(i), 0);
- iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
- iwl_write_targ_mem(priv, priv->scd_base_addr +
- IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
- iwl_write_targ_mem(priv, priv->scd_base_addr +
- IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(i) +
- sizeof(u32),
- ((SCD_WIN_SIZE <<
- IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
- IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
- ((SCD_FRAME_LIMIT <<
- IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
- IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
- }
-
- iwl_write_prph(priv, IWLAGN_SCD_INTERRUPT_MASK,
- IWL_MASK(0, priv->hw_params.max_txq_num));
-
- /* Activate all Tx DMA/FIFO channels */
- iwlagn_txq_set_sched(priv, IWL_MASK(0, 7));
-
- /* map queues to FIFOs */
- if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
- queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
- else
- queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
-
- iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0);
-
- /* make sure all queue are not stopped */
- memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
- for (i = 0; i < 4; i++)
- atomic_set(&priv->queue_stop_count[i], 0);
- for_each_context(priv, ctx)
- ctx->last_tx_rejected = false;
-
- /* reset to 0 to enable all the queue first */
- priv->txq_ctx_active_msk = 0;
-
- BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10);
- BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10);
-
- for (i = 0; i < 10; i++) {
- int fifo = queue_to_fifo[i].fifo;
- int ac = queue_to_fifo[i].ac;
-
- iwl_txq_ctx_activate(priv, i);
-
- if (fifo == IWL_TX_FIFO_UNUSED)
- continue;
-
- if (ac != IWL_AC_UNSET)
- iwl_set_swq_id(&priv->txq[i], ac, i);
- iwlagn_tx_queue_set_status(priv, &priv->txq[i], fifo, 0);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Enable L1-Active */
- iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+ trans_tx_start(priv);
ret = iwlagn_send_wimax_coex(priv);
if (ret)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index c851fc2..0e8ccb9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -136,7 +136,6 @@ void iwlagn_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
void iwlagn_tx_queue_set_status(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
int tx_fifo_id, int scd_retry);
-void iwlagn_txq_set_sched(struct iwl_priv *priv, u32 mask);
void iwl_free_tfds_in_queue(struct iwl_priv *priv,
int sta_id, int tid, int freed);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index cf6f4b2..fddc236 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1234,10 +1234,11 @@ struct iwl_trans;
/**
* struct iwl_trans_ops - transport specific operations
-
* @rx_init: inits the rx memory, allocate it if needed
* @rx_free: frees the rx memory
* @tx_init:inits the tx memory, allocate if needed
+ * @tx_start: starts and configures all the Tx fifo - usually done once the fw
+ * is alive.
* @tx_free: frees the tx memory
* @stop_device:stops the whole device (embedded CPU put to reset)
* @send_cmd:send a host command
@@ -1256,6 +1257,7 @@ struct iwl_trans_ops {
void (*rx_free)(struct iwl_priv *priv);
int (*tx_init)(struct iwl_priv *priv);
+ void (*tx_start)(struct iwl_priv *priv);
void (*tx_free)(struct iwl_priv *priv);
void (*stop_device)(struct iwl_priv *priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 1cc0ed1..2f267b8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -178,61 +178,61 @@
#define SCD_WIN_SIZE 64
#define SCD_FRAME_LIMIT 64
-#define IWL_SCD_TXFIFO_POS_TID (0)
-#define IWL_SCD_TXFIFO_POS_RA (4)
-#define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
+#define SCD_TXFIFO_POS_TID (0)
+#define SCD_TXFIFO_POS_RA (4)
+#define SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
/* agn SCD */
-#define IWLAGN_SCD_QUEUE_STTS_REG_POS_TXF (0)
-#define IWLAGN_SCD_QUEUE_STTS_REG_POS_ACTIVE (3)
-#define IWLAGN_SCD_QUEUE_STTS_REG_POS_WSL (4)
-#define IWLAGN_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (19)
-#define IWLAGN_SCD_QUEUE_STTS_REG_MSK (0x00FF0000)
-
-#define IWLAGN_SCD_QUEUE_CTX_REG1_CREDIT_POS (8)
-#define IWLAGN_SCD_QUEUE_CTX_REG1_CREDIT_MSK (0x00FFFF00)
-#define IWLAGN_SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS (24)
-#define IWLAGN_SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK (0xFF000000)
-#define IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS (0)
-#define IWLAGN_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK (0x0000007F)
-#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
-#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
+#define SCD_QUEUE_STTS_REG_POS_TXF (0)
+#define SCD_QUEUE_STTS_REG_POS_ACTIVE (3)
+#define SCD_QUEUE_STTS_REG_POS_WSL (4)
+#define SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (19)
+#define SCD_QUEUE_STTS_REG_MSK (0x00FF0000)
+
+#define SCD_QUEUE_CTX_REG1_CREDIT_POS (8)
+#define SCD_QUEUE_CTX_REG1_CREDIT_MSK (0x00FFFF00)
+#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS (24)
+#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK (0xFF000000)
+#define SCD_QUEUE_CTX_REG2_WIN_SIZE_POS (0)
+#define SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK (0x0000007F)
+#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
+#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
/* Context Data */
-#define IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600)
-#define IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
+#define SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600)
+#define SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
/* Tx status */
-#define IWLAGN_SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
-#define IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
+#define SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
+#define SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
/* Translation Data */
-#define IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
-#define IWLAGN_SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808)
+#define SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
+#define SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808)
-#define IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(x)\
- (IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8))
+#define SCD_CONTEXT_QUEUE_OFFSET(x)\
+ (SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8))
-#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
- ((IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc)
+#define SCD_TRANS_TBL_OFFSET_QUEUE(x) \
+ ((SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc)
-#define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv) \
+#define SCD_QUEUECHAIN_SEL_ALL(priv) \
(((1<<(priv)->hw_params.max_txq_num) - 1) &\
(~(1<<(priv)->cmd_queue)))
-#define IWLAGN_SCD_BASE (PRPH_BASE + 0xa02c00)
-
-#define IWLAGN_SCD_SRAM_BASE_ADDR (IWLAGN_SCD_BASE + 0x0)
-#define IWLAGN_SCD_DRAM_BASE_ADDR (IWLAGN_SCD_BASE + 0x8)
-#define IWLAGN_SCD_AIT (IWLAGN_SCD_BASE + 0x0c)
-#define IWLAGN_SCD_TXFACT (IWLAGN_SCD_BASE + 0x10)
-#define IWLAGN_SCD_ACTIVE (IWLAGN_SCD_BASE + 0x14)
-#define IWLAGN_SCD_QUEUE_WRPTR(x) (IWLAGN_SCD_BASE + 0x18 + (x) * 4)
-#define IWLAGN_SCD_QUEUE_RDPTR(x) (IWLAGN_SCD_BASE + 0x68 + (x) * 4)
-#define IWLAGN_SCD_QUEUECHAIN_SEL (IWLAGN_SCD_BASE + 0xe8)
-#define IWLAGN_SCD_AGGR_SEL (IWLAGN_SCD_BASE + 0x248)
-#define IWLAGN_SCD_INTERRUPT_MASK (IWLAGN_SCD_BASE + 0x108)
-#define IWLAGN_SCD_QUEUE_STATUS_BITS(x) (IWLAGN_SCD_BASE + 0x10c + (x) * 4)
+#define SCD_BASE (PRPH_BASE + 0xa02c00)
+
+#define SCD_SRAM_BASE_ADDR (SCD_BASE + 0x0)
+#define SCD_DRAM_BASE_ADDR (SCD_BASE + 0x8)
+#define SCD_AIT (SCD_BASE + 0x0c)
+#define SCD_TXFACT (SCD_BASE + 0x10)
+#define SCD_ACTIVE (SCD_BASE + 0x14)
+#define SCD_QUEUE_WRPTR(x) (SCD_BASE + 0x18 + (x) * 4)
+#define SCD_QUEUE_RDPTR(x) (SCD_BASE + 0x68 + (x) * 4)
+#define SCD_QUEUECHAIN_SEL (SCD_BASE + 0xe8)
+#define SCD_AGGR_SEL (SCD_BASE + 0x248)
+#define SCD_INTERRUPT_MASK (SCD_BASE + 0x108)
+#define SCD_QUEUE_STATUS_BITS(x) (SCD_BASE + 0x10c + (x) * 4)
/*********************** END TX SCHEDULER *************************************/
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c
index 8d45554..7c748f6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.c
@@ -547,7 +547,7 @@ static int iwl_trans_tx_init(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
/* Turn off all Tx DMA fifos */
- iwl_write_prph(priv, IWLAGN_SCD_TXFACT, 0);
+ iwl_write_prph(priv, SCD_TXFACT, 0);
/* Tell NIC where to find the "keep warm" buffer */
iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
@@ -574,6 +574,154 @@ error:
return ret;
}
+/*
+ * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
+ * must be called under priv->lock and mac access
+ */
+static void iwl_trans_txq_set_sched(struct iwl_priv *priv, u32 mask)
+{
+ iwl_write_prph(priv, SCD_TXFACT, mask);
+}
+
+#define IWL_AC_UNSET -1
+
+struct queue_to_fifo_ac {
+ s8 fifo, ac;
+};
+
+static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = {
+ { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
+ { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
+ { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
+ { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
+ { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
+ { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
+ { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
+ { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
+ { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
+ { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, },
+};
+
+static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = {
+ { IWL_TX_FIFO_VO, IEEE80211_AC_VO, },
+ { IWL_TX_FIFO_VI, IEEE80211_AC_VI, },
+ { IWL_TX_FIFO_BE, IEEE80211_AC_BE, },
+ { IWL_TX_FIFO_BK, IEEE80211_AC_BK, },
+ { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, },
+ { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, },
+ { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, },
+ { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, },
+ { IWL_TX_FIFO_BE_IPAN, 2, },
+ { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, },
+};
+static void iwl_trans_tx_start(struct iwl_priv *priv)
+{
+ const struct queue_to_fifo_ac *queue_to_fifo;
+ struct iwl_rxon_context *ctx;
+ u32 a;
+ unsigned long flags;
+ int i, chan;
+ u32 reg_val;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ priv->scd_base_addr = iwl_read_prph(priv, SCD_SRAM_BASE_ADDR);
+ a = priv->scd_base_addr + SCD_CONTEXT_MEM_LOWER_BOUND;
+ /* reset conext data memory */
+ for (; a < priv->scd_base_addr + SCD_CONTEXT_MEM_UPPER_BOUND;
+ a += 4)
+ iwl_write_targ_mem(priv, a, 0);
+ /* reset tx status memory */
+ for (; a < priv->scd_base_addr + SCD_TX_STTS_MEM_UPPER_BOUND;
+ a += 4)
+ iwl_write_targ_mem(priv, a, 0);
+ for (; a < priv->scd_base_addr +
+ SCD_TRANS_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4)
+ iwl_write_targ_mem(priv, a, 0);
+
+ iwl_write_prph(priv, SCD_DRAM_BASE_ADDR,
+ priv->scd_bc_tbls.dma >> 10);
+
+ /* Enable DMA channel */
+ for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++)
+ iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
+ FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
+ FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
+
+ /* Update FH chicken bits */
+ reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
+ iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
+ reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
+
+ iwl_write_prph(priv, SCD_QUEUECHAIN_SEL,
+ SCD_QUEUECHAIN_SEL_ALL(priv));
+ iwl_write_prph(priv, SCD_AGGR_SEL, 0);
+
+ /* initiate the queues */
+ for (i = 0; i < priv->hw_params.max_txq_num; i++) {
+ iwl_write_prph(priv, SCD_QUEUE_RDPTR(i), 0);
+ iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
+ iwl_write_targ_mem(priv, priv->scd_base_addr +
+ SCD_CONTEXT_QUEUE_OFFSET(i), 0);
+ iwl_write_targ_mem(priv, priv->scd_base_addr +
+ SCD_CONTEXT_QUEUE_OFFSET(i) +
+ sizeof(u32),
+ ((SCD_WIN_SIZE <<
+ SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
+ SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
+ ((SCD_FRAME_LIMIT <<
+ SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
+ SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
+ }
+
+ iwl_write_prph(priv, SCD_INTERRUPT_MASK,
+ IWL_MASK(0, priv->hw_params.max_txq_num));
+
+ /* Activate all Tx DMA/FIFO channels */
+ iwl_trans_txq_set_sched(priv, IWL_MASK(0, 7));
+
+ /* map queues to FIFOs */
+ if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
+ queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
+ else
+ queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
+
+ iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0);
+
+ /* make sure all queue are not stopped */
+ memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
+ for (i = 0; i < 4; i++)
+ atomic_set(&priv->queue_stop_count[i], 0);
+ for_each_context(priv, ctx)
+ ctx->last_tx_rejected = false;
+
+ /* reset to 0 to enable all the queue first */
+ priv->txq_ctx_active_msk = 0;
+
+ BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10);
+ BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10);
+
+ for (i = 0; i < 10; i++) {
+ int fifo = queue_to_fifo[i].fifo;
+ int ac = queue_to_fifo[i].ac;
+
+ iwl_txq_ctx_activate(priv, i);
+
+ if (fifo == IWL_TX_FIFO_UNUSED)
+ continue;
+
+ if (ac != IWL_AC_UNSET)
+ iwl_set_swq_id(&priv->txq[i], ac, i);
+ iwlagn_tx_queue_set_status(priv, &priv->txq[i], fifo, 0);
+ }
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Enable L1-Active */
+ iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+}
+
/**
* iwlagn_txq_ctx_stop - Stop all Tx DMA channels
*/
@@ -585,7 +733,7 @@ static int iwl_trans_tx_stop(struct iwl_priv *priv)
/* Turn off all Tx DMA fifos */
spin_lock_irqsave(&priv->lock, flags);
- iwlagn_txq_set_sched(priv, 0);
+ iwl_trans_txq_set_sched(priv, 0);
/* Stop each Tx DMA channel, and wait for it to be idle */
for (ch = 0; ch < FH_TCSR_CHNL_NUM; ch++) {
@@ -822,6 +970,7 @@ static const struct iwl_trans_ops trans_ops = {
.rx_free = iwl_trans_rx_free,
.tx_init = iwl_trans_tx_init,
+ .tx_start = iwl_trans_tx_start,
.tx_free = iwl_trans_tx_free,
.stop_device = iwl_trans_stop_device,
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 55e6c33..16cdb89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -79,6 +79,11 @@ static inline int trans_tx_init(struct iwl_priv *priv)
return priv->trans.ops->tx_init(priv);
}
+static inline void trans_tx_start(struct iwl_priv *priv)
+{
+ priv->trans.ops->tx_start(priv);
+}
+
static inline void trans_tx_free(struct iwl_priv *priv)
{
priv->trans.ops->tx_free(priv);
--
1.7.0.4
--
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