diff options
| -rw-r--r-- | drivers/net/wireless/iwlegacy/3945.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlegacy/4965-mac.c | 18 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlegacy/common.c | 66 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlegacy/common.h | 20 |
4 files changed, 52 insertions, 61 deletions
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c index 103251dba459..8900e3c42b02 100644 --- a/drivers/net/wireless/iwlegacy/3945.c +++ b/drivers/net/wireless/iwlegacy/3945.c @@ -790,7 +790,6 @@ il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq) static int il3945_tx_reset(struct il_priv *il) { - /* bypass mode */ il_wr_prph(il, ALM_SCD_MODE_REG, 0x2); @@ -827,8 +826,7 @@ il3945_tx_reset(struct il_priv *il) static int il3945_txq_ctx_reset(struct il_priv *il) { - int rc; - int txq_id, slots_num; + int rc, txq_id; il3945_hw_txq_ctx_free(il); @@ -844,10 +842,7 @@ il3945_txq_ctx_reset(struct il_priv *il) /* Tx queue(s) */ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { - slots_num = - (txq_id == - IL39_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - rc = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id); + rc = il_tx_queue_init(il, txq_id); if (rc) { IL_ERR("Tx %d queue init failed\n", txq_id); goto error; diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c index cf1486132eea..a0158e3efd01 100644 --- a/drivers/net/wireless/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/iwlegacy/4965-mac.c @@ -1952,8 +1952,7 @@ il4965_hw_txq_ctx_free(struct il_priv *il) int il4965_txq_ctx_alloc(struct il_priv *il) { - int ret; - int txq_id, slots_num; + int ret, txq_id; unsigned long flags; /* Free all tx/cmd queues and keep-warm buffer */ @@ -1990,10 +1989,7 @@ il4965_txq_ctx_alloc(struct il_priv *il) /* Alloc and init all Tx queues, including the command queue (#4/#9) */ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { - slots_num = - (txq_id == - il->cmd_queue) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id); + ret = il_tx_queue_init(il, txq_id); if (ret) { IL_ERR("Tx %d queue init failed\n", txq_id); goto error; @@ -2014,25 +2010,21 @@ error_bc_tbls: void il4965_txq_ctx_reset(struct il_priv *il) { - int txq_id, slots_num; + int txq_id; unsigned long flags; spin_lock_irqsave(&il->lock, flags); /* Turn off all Tx DMA fifos */ il4965_txq_set_sched(il, 0); - /* Tell NIC where to find the "keep warm" buffer */ il_wr(il, FH49_KW_MEM_ADDR_REG, il->kw.dma >> 4); spin_unlock_irqrestore(&il->lock, flags); /* Alloc and init all Tx queues, including the command queue (#4) */ - for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { - slots_num = - txq_id == il->cmd_queue ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - il_tx_queue_reset(il, &il->txq[txq_id], slots_num, txq_id); - } + for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) + il_tx_queue_reset(il, txq_id); } void diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c index d0d408e1b367..872302a3f869 100644 --- a/drivers/net/wireless/iwlegacy/common.c +++ b/drivers/net/wireless/iwlegacy/common.c @@ -2887,20 +2887,22 @@ EXPORT_SYMBOL(il_queue_space); * il_queue_init - Initialize queue's high/low-water and read/write idxes */ static int -il_queue_init(struct il_priv *il, struct il_queue *q, int count, int slots_num, - u32 id) +il_queue_init(struct il_priv *il, struct il_queue *q, int slots, u32 id) { - q->n_bd = count; - q->n_win = slots_num; - q->id = id; + /* + * TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise + * il_queue_inc_wrap and il_queue_dec_wrap are broken. + */ + BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); + /* FIXME: remove q->n_bd */ + q->n_bd = TFD_QUEUE_SIZE_MAX; - /* count must be power-of-two size, otherwise il_queue_inc_wrap - * and il_queue_dec_wrap are broken. */ - BUG_ON(!is_power_of_2(count)); + q->n_win = slots; + q->id = id; - /* slots_num must be power-of-two size, otherwise + /* slots_must be power-of-two size, otherwise * il_get_cmd_idx is broken. */ - BUG_ON(!is_power_of_2(slots_num)); + BUG_ON(!is_power_of_2(slots)); q->low_mark = q->n_win / 4; if (q->low_mark < 4) @@ -2959,12 +2961,11 @@ error: * il_tx_queue_init - Allocate and initialize one tx/cmd queue */ int -il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, - u32 txq_id) +il_tx_queue_init(struct il_priv *il, u32 txq_id) { - int i, len; - int ret; - int actual_slots = slots_num; + int i, len, ret; + int slots, actual_slots; + struct il_tx_queue *txq = &il->txq[txq_id]; /* * Alloc buffer array for commands (Tx or other types of commands). @@ -2974,8 +2975,13 @@ il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, * For normal Tx queues (all other queues), no super-size command * space is needed. */ - if (txq_id == il->cmd_queue) - actual_slots++; + if (txq_id == il->cmd_queue) { + slots = TFD_CMD_SLOTS; + actual_slots = slots + 1; + } else { + slots = TFD_TX_CMD_SLOTS; + actual_slots = slots; + } txq->meta = kzalloc(sizeof(struct il_cmd_meta) * actual_slots, GFP_KERNEL); @@ -2988,7 +2994,7 @@ il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, len = sizeof(struct il_device_cmd); for (i = 0; i < actual_slots; i++) { /* only happens for cmd queue */ - if (i == slots_num) + if (i == slots) len = IL_MAX_CMD_SIZE; txq->cmd[i] = kmalloc(len, GFP_KERNEL); @@ -3011,12 +3017,8 @@ il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, if (txq_id < 4) il_set_swq_id(txq, txq_id, txq_id); - /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise - * il_queue_inc_wrap and il_queue_dec_wrap are broken. */ - BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); - /* Initialize queue's high/low-water marks, and head/tail idxes */ - il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); + il_queue_init(il, &txq->q, slots, txq_id); /* Tell device where to find queue */ il->ops->txq_init(il, txq); @@ -3034,20 +3036,24 @@ out_free_arrays: EXPORT_SYMBOL(il_tx_queue_init); void -il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq, int slots_num, - u32 txq_id) +il_tx_queue_reset(struct il_priv *il, u32 txq_id) { - int actual_slots = slots_num; + int slots, actual_slots; + struct il_tx_queue *txq = &il->txq[txq_id]; - if (txq_id == il->cmd_queue) - actual_slots++; + if (txq_id == il->cmd_queue) { + slots = TFD_CMD_SLOTS; + actual_slots = TFD_CMD_SLOTS + 1; + } else { + slots = TFD_TX_CMD_SLOTS; + actual_slots = TFD_TX_CMD_SLOTS; + } memset(txq->meta, 0, sizeof(struct il_cmd_meta) * actual_slots); - txq->need_update = 0; /* Initialize queue's high/low-water marks, and head/tail idxes */ - il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); + il_queue_init(il, &txq->q, slots, txq_id); /* Tell device where to find queue */ il->ops->txq_init(il, txq); diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h index 13bfd4394f91..e2f55dc86936 100644 --- a/drivers/net/wireless/iwlegacy/common.h +++ b/drivers/net/wireless/iwlegacy/common.h @@ -1783,14 +1783,12 @@ void il_chswitch_done(struct il_priv *il, bool is_success); /***************************************************** * TX ******************************************************/ -void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq); -int il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num, - u32 txq_id); -void il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq, - int slots_num, u32 txq_id); -void il_tx_queue_unmap(struct il_priv *il, int txq_id); -void il_tx_queue_free(struct il_priv *il, int txq_id); -void il_setup_watchdog(struct il_priv *il); +extern void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq); +extern int il_tx_queue_init(struct il_priv *il, u32 txq_id); +extern void il_tx_queue_reset(struct il_priv *il, u32 txq_id); +extern void il_tx_queue_unmap(struct il_priv *il, int txq_id); +extern void il_tx_queue_free(struct il_priv *il, int txq_id); +extern void il_setup_watchdog(struct il_priv *il); /***************************************************** * TX power ****************************************************/ @@ -2405,10 +2403,10 @@ struct il_rb_status { __le32 __unused; /* 3945 only */ } __packed; -#define TFD_QUEUE_SIZE_MAX (256) -#define TFD_QUEUE_SIZE_BC_DUP (64) +#define TFD_QUEUE_SIZE_MAX 256 +#define TFD_QUEUE_SIZE_BC_DUP 64 #define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP) -#define IL_TX_DMA_MASK DMA_BIT_MASK(36) +#define IL_TX_DMA_MASK DMA_BIT_MASK(36) #define IL_NUM_OF_TBS 20 static inline u8 |