This patch renames queue pointers to write_ptr and read_ptr
instead of first_empty and last_used. This is closer to technical
terminology we everyday use
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-3945.c | 12 +++---
drivers/net/wireless/iwlwifi/iwl-4965.c | 24 +++++-----
drivers/net/wireless/iwlwifi/iwl3945-base.c | 61 +++++++++++++------------
drivers/net/wireless/iwlwifi/iwl4965-base.c | 65 ++++++++++++++-------------
drivers/net/wireless/iwlwifi/iwlwifi.h | 4 +-
5 files changed, 84 insertions(+), 82 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 1795d2b..cf0ab7d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -518,14 +518,14 @@ int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
}
/**
- * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
*
* Does NOT advance any indexes
*/
int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter;
@@ -548,12 +548,12 @@ int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
for (i = 1; i < counter; i++) {
pci_unmap_single(dev, le32_to_cpu(bd->pa[i].addr),
le32_to_cpu(bd->pa[i].len), PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[0]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[0];
- if (txq->txb[txq->q.last_used].skb[0]) {
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0];
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
/* Can be called from interrupt context */
dev_kfree_skb_any(skb);
- txq->txb[txq->q.last_used].skb[0] = NULL;
+ txq->txb[txq->q.read_ptr].skb[0] = NULL;
}
}
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9b274f9..39f5836 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -1748,14 +1748,14 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
}
/**
- * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
*
* Does NOT advance any indexes
*/
int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter = 0;
@@ -1795,11 +1795,11 @@ int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
IWL_GET_BITS(bd->pa[index], tb1_len),
PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[i]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[i];
+ if (txq->txb[txq->q.read_ptr].skb[i]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[i];
dev_kfree_skb(skb);
- txq->txb[txq->q.last_used].skb[i] = NULL;
+ txq->txb[txq->q.read_ptr].skb[i] = NULL;
}
}
return 0;
@@ -2775,11 +2775,11 @@ int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[txq->q.first_empty], byte_cnt, len);
+ tfd_offset[txq->q.write_ptr], byte_cnt, len);
- if (txq->q.first_empty < IWL4965_MAX_WIN_SIZE)
+ if (txq->q.write_ptr < IWL4965_MAX_WIN_SIZE)
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[IWL4965_QUEUE_SIZE + txq->q.first_empty],
+ tfd_offset[IWL4965_QUEUE_SIZE + txq->q.write_ptr],
byte_cnt, len);
return 0;
@@ -4197,8 +4197,8 @@ static int iwl4965_tx_queue_agg_enable(struct iwl_priv *priv, int txq_id,
iwl_set_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1<<txq_id));
- priv->txq[txq_id].q.last_used = (ssn_idx & 0xff);
- priv->txq[txq_id].q.first_empty = (ssn_idx & 0xff);
+ 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) */
iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
@@ -4249,8 +4249,8 @@ static int iwl4965_tx_queue_agg_disable(struct iwl_priv *priv, u16 txq_id,
iwl_clear_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1 << txq_id));
- priv->txq[txq_id].q.last_used = (ssn_idx & 0xff);
- priv->txq[txq_id].q.first_empty = (ssn_idx & 0xff);
+ 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) */
iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d93d169..2581675 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -211,9 +211,9 @@ static void iwl_print_hex_dump(int level, void *p, u32 len)
static int iwl_queue_space(const struct iwl_queue *q)
{
- int s = q->last_used - q->first_empty;
+ int s = q->read_ptr - q->write_ptr;
- if (q->last_used > q->first_empty)
+ if (q->read_ptr > q->write_ptr)
s -= q->n_bd;
if (s <= 0)
@@ -239,9 +239,9 @@ static inline int iwl_queue_dec_wrap(int index, int n_bd)
static inline int x2_queue_used(const struct iwl_queue *q, int i)
{
- return q->first_empty > q->last_used ?
- (i >= q->last_used && i < q->first_empty) :
- !(i < q->last_used && i >= q->first_empty);
+ return q->write_ptr > q->read_ptr ?
+ (i >= q->read_ptr && i < q->write_ptr) :
+ !(i < q->read_ptr && i >= q->write_ptr);
}
static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
@@ -275,7 +275,8 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
if (q->high_mark < 2)
q->high_mark = 2;
- q->first_empty = q->last_used = 0;
+ q->write_ptr = 0;
+ q->read_ptr = 0;
return 0;
}
@@ -371,8 +372,8 @@ void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
return;
/* first, empty all BD's */
- for (; q->first_empty != q->last_used;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd))
+ for (; q->write_ptr != q->read_ptr;
+ q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
iwl_hw_txq_free_tfd(priv, txq);
len = sizeof(struct iwl_cmd) * q->n_window;
@@ -652,12 +653,12 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
spin_lock_irqsave(&priv->hcmd_lock, flags);
- tfd = &txq->bd[q->first_empty];
+ tfd = &txq->bd[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->first_empty, cmd->meta.flags & CMD_SIZE_HUGE);
+ idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
out_cmd = &txq->cmd[idx];
out_cmd->hdr.cmd = cmd->id;
@@ -669,7 +670,7 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
out_cmd->hdr.flags = 0;
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
- INDEX_TO_SEQ(q->first_empty));
+ INDEX_TO_SEQ(q->write_ptr));
if (out_cmd->meta.flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
@@ -685,10 +686,10 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
- fix_size, q->first_empty, idx, IWL_CMD_QUEUE_NUM);
+ fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
txq->need_update = 1;
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+ q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
ret = iwl_tx_queue_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->hcmd_lock, flags);
@@ -2777,21 +2778,21 @@ static int iwl_tx_skb(struct iwl_priv *priv,
spin_lock_irqsave(&priv->lock, flags);
- tfd = &txq->bd[q->first_empty];
+ tfd = &txq->bd[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->first_empty, 0);
+ idx = get_cmd_index(q, q->write_ptr, 0);
- memset(&(txq->txb[q->first_empty]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->first_empty].skb[0] = skb;
- memcpy(&(txq->txb[q->first_empty].status.control),
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
+ txq->txb[q->write_ptr].skb[0] = skb;
+ memcpy(&(txq->txb[q->write_ptr].status.control),
ctl, sizeof(struct ieee80211_tx_control));
out_cmd = &txq->cmd[idx];
memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
out_cmd->hdr.cmd = REPLY_TX;
out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->first_empty)));
+ INDEX_TO_SEQ(q->write_ptr)));
/* copy frags header */
memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
@@ -2859,7 +2860,7 @@ static int iwl_tx_skb(struct iwl_priv *priv,
iwl_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
ieee80211_get_hdrlen(fc));
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+ q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
rc = iwl_tx_queue_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -3345,20 +3346,20 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
"is out of range [0-%d] %d %d.\n", txq_id,
- index, q->n_bd, q->first_empty, q->last_used);
+ index, q->n_bd, q->write_ptr, q->read_ptr);
return 0;
}
for (index = iwl_queue_inc_wrap(index, q->n_bd);
- q->last_used != index;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd)) {
+ q->read_ptr != index;
+ q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
if (txq_id != IWL_CMD_QUEUE_NUM) {
iwl_txstatus_to_ieee(priv,
- &(txq->txb[txq->q.last_used]));
+ &(txq->txb[txq->q.read_ptr]));
iwl_hw_txq_free_tfd(priv, txq);
} else if (nfreed > 1) {
IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
- q->first_empty, q->last_used);
+ q->write_ptr, q->read_ptr);
queue_work(priv->workqueue, &priv->restart);
}
nfreed++;
@@ -3398,12 +3399,12 @@ static void iwl_rx_reply_tx(struct iwl_priv *priv,
if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
"is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.first_empty,
- txq->q.last_used);
+ index, txq->q.n_bd, txq->q.write_ptr,
+ txq->q.read_ptr);
return;
}
- tx_status = &(txq->txb[txq->q.last_used].status);
+ tx_status = &(txq->txb[txq->q.read_ptr].status);
tx_status->retry_count = tx_resp->failure_frame;
tx_status->queue_number = status;
@@ -4338,14 +4339,14 @@ int iwl_tx_queue_update_write_ptr(struct iwl_priv *priv,
if (rc)
return rc;
iwl_write_restricted(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
+ txq->q.write_ptr | (txq_id << 8));
iwl_release_restricted_access(priv);
/* else not in power-save mode, uCode will never sleep when we're
* trying to tx (during RFKILL, we're not trying to tx). */
} else
iwl_write32(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
+ txq->q.write_ptr | (txq_id << 8));
txq->need_update = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 9cd8dcb..8b6bb49 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -210,9 +210,9 @@ static void iwl_print_hex_dump(int level, void *p, u32 len)
static int iwl_queue_space(const struct iwl_queue *q)
{
- int s = q->last_used - q->first_empty;
+ int s = q->read_ptr - q->write_ptr;
- if (q->last_used > q->first_empty)
+ if (q->read_ptr > q->write_ptr)
s -= q->n_bd;
if (s <= 0)
@@ -238,9 +238,9 @@ static inline int iwl_queue_dec_wrap(int index, int n_bd)
static inline int x2_queue_used(const struct iwl_queue *q, int i)
{
- return q->first_empty > q->last_used ?
- (i >= q->last_used && i < q->first_empty) :
- !(i < q->last_used && i >= q->first_empty);
+ return q->write_ptr > q->read_ptr ?
+ (i >= q->read_ptr && i < q->write_ptr) :
+ !(i < q->read_ptr && i >= q->write_ptr);
}
static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
@@ -274,7 +274,8 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
if (q->high_mark < 2)
q->high_mark = 2;
- q->first_empty = q->last_used = 0;
+ q->write_ptr = 0;
+ q->read_ptr = 0;
return 0;
}
@@ -370,8 +371,8 @@ void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
return;
/* first, empty all BD's */
- for (; q->first_empty != q->last_used;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd))
+ for (; q->write_ptr != q->read_ptr;
+ q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
iwl_hw_txq_free_tfd(priv, txq);
len = sizeof(struct iwl_cmd) * q->n_window;
@@ -653,12 +654,12 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
spin_lock_irqsave(&priv->hcmd_lock, flags);
- tfd = &txq->bd[q->first_empty];
+ tfd = &txq->bd[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->first_empty, cmd->meta.flags & CMD_SIZE_HUGE);
+ idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
out_cmd = &txq->cmd[idx];
out_cmd->hdr.cmd = cmd->id;
@@ -670,7 +671,7 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
out_cmd->hdr.flags = 0;
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
- INDEX_TO_SEQ(q->first_empty));
+ INDEX_TO_SEQ(q->write_ptr));
if (out_cmd->meta.flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
@@ -682,11 +683,11 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
- fix_size, q->first_empty, idx, IWL_CMD_QUEUE_NUM);
+ fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
txq->need_update = 1;
ret = iwl4965_tx_queue_update_wr_ptr(priv, txq, 0);
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+ q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
iwl_tx_queue_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->hcmd_lock, flags);
@@ -2866,21 +2867,21 @@ static int iwl_tx_skb(struct iwl_priv *priv,
spin_lock_irqsave(&priv->lock, flags);
- tfd = &txq->bd[q->first_empty];
+ tfd = &txq->bd[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->first_empty, 0);
+ idx = get_cmd_index(q, q->write_ptr, 0);
- memset(&(txq->txb[q->first_empty]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->first_empty].skb[0] = skb;
- memcpy(&(txq->txb[q->first_empty].status.control),
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
+ txq->txb[q->write_ptr].skb[0] = skb;
+ memcpy(&(txq->txb[q->write_ptr].status.control),
ctl, sizeof(struct ieee80211_tx_control));
out_cmd = &txq->cmd[idx];
memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
out_cmd->hdr.cmd = REPLY_TX;
out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->first_empty)));
+ INDEX_TO_SEQ(q->write_ptr)));
/* copy frags header */
memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
@@ -2946,7 +2947,7 @@ static int iwl_tx_skb(struct iwl_priv *priv,
iwl4965_tx_queue_update_wr_ptr(priv, txq, len);
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+ q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
rc = iwl_tx_queue_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -3433,20 +3434,20 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
"is out of range [0-%d] %d %d.\n", txq_id,
- index, q->n_bd, q->first_empty, q->last_used);
+ index, q->n_bd, q->write_ptr, q->read_ptr);
return 0;
}
for (index = iwl_queue_inc_wrap(index, q->n_bd);
- q->last_used != index;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd)) {
+ q->read_ptr != index;
+ q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
if (txq_id != IWL_CMD_QUEUE_NUM) {
iwl_txstatus_to_ieee(priv,
- &(txq->txb[txq->q.last_used]));
+ &(txq->txb[txq->q.read_ptr]));
iwl_hw_txq_free_tfd(priv, txq);
} else if (nfreed > 1) {
IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
- q->first_empty, q->last_used);
+ q->write_ptr, q->read_ptr);
queue_work(priv->workqueue, &priv->restart);
}
nfreed++;
@@ -3534,7 +3535,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d \n",
agg->frame_count, agg->start_idx);
- tx_status = &(priv->txq[txq_id].txb[txq->q.last_used].status);
+ tx_status = &(priv->txq[txq_id].txb[txq->q.read_ptr].status);
tx_status->retry_count = tx_resp->failure_frame;
tx_status->queue_number = status & 0xff;
tx_status->queue_length = tx_resp->bt_kill_count;
@@ -3639,8 +3640,8 @@ static void iwl_rx_reply_tx(struct iwl_priv *priv,
if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
"is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.first_empty,
- txq->q.last_used);
+ index, txq->q.n_bd, txq->q.write_ptr,
+ txq->q.read_ptr);
return;
}
@@ -3675,7 +3676,7 @@ static void iwl_rx_reply_tx(struct iwl_priv *priv,
/* TODO: send BAR */
}
- if ((txq->q.last_used != (scd_ssn & 0xff))) {
+ if ((txq->q.read_ptr != (scd_ssn & 0xff))) {
index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
"%d index %d\n", scd_ssn , index);
@@ -3684,7 +3685,7 @@ static void iwl_rx_reply_tx(struct iwl_priv *priv,
} else {
#endif /* CONFIG_IWLWIFI_HT_AGG */
#endif /* CONFIG_IWLWIFI_HT */
- tx_status = &(txq->txb[txq->q.last_used].status);
+ tx_status = &(txq->txb[txq->q.read_ptr].status);
tx_status->retry_count = tx_resp->failure_frame;
tx_status->queue_number = status;
@@ -4662,14 +4663,14 @@ int iwl_tx_queue_update_write_ptr(struct iwl_priv *priv,
if (rc)
return rc;
iwl_write_restricted(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
+ txq->q.write_ptr | (txq_id << 8));
iwl_release_restricted_access(priv);
/* else not in power-save mode, uCode will never sleep when we're
* trying to tx (during RFKILL, we're not trying to tx). */
} else
iwl_write32(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
+ txq->q.write_ptr | (txq_id << 8));
txq->need_update = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwlwifi.h b/drivers/net/wireless/iwlwifi/iwlwifi.h
index a6983bf..70e106f 100644
--- a/drivers/net/wireless/iwlwifi/iwlwifi.h
+++ b/drivers/net/wireless/iwlwifi/iwlwifi.h
@@ -149,8 +149,8 @@ struct iwl_rt_tx_hdr {
*/
struct iwl_queue {
int n_bd; /* number of BDs in this queue */
- int first_empty; /* 1-st empty entry (index) host_w*/
- int last_used; /* last used entry (index) host_r*/
+ int write_ptr; /* 1-st empty entry (index) host_w*/
+ int read_ptr; /* last used entry (index) host_r*/
dma_addr_t dma_addr; /* physical addr for BD's */
int n_window; /* safe queue window */
u32 id;
--
1.5.2.2
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