It's just wrapper to sk_buff pointers ...
Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx>
---
drivers/net/wireless/iwlegacy/3945-mac.c | 4 +--
drivers/net/wireless/iwlegacy/3945.c | 18 +++++++---------
drivers/net/wireless/iwlegacy/4965-mac.c | 33 ++++++++++++-----------------
drivers/net/wireless/iwlegacy/4965.c | 18 +++++++++-------
drivers/net/wireless/iwlegacy/common.c | 24 ++++++++++-----------
drivers/net/wireless/iwlegacy/common.h | 18 +--------------
6 files changed, 46 insertions(+), 69 deletions(-)
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index 40ce692..aa8f5c0 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -538,9 +538,7 @@ il3945_tx_skb(struct il_priv *il, struct sk_buff *skb)
idx = il_get_cmd_idx(q, q->write_ptr, 0);
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info));
- txq->txb[q->write_ptr].skb = skb;
+ txq->skbs[q->write_ptr] = skb;
/* Init first empty entry in queue's array of Tx/cmd buffers */
out_cmd = txq->cmd[idx];
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c
index 7c21a57..6c1ae5f 100644
--- a/drivers/net/wireless/iwlegacy/3945.c
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -293,16 +293,16 @@ il3945_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx)
{
struct il_tx_queue *txq = &il->txq[txq_id];
struct il_queue *q = &txq->q;
- struct il_tx_info *tx_info;
+ struct sk_buff *skb;
BUG_ON(txq_id == IL39_CMD_QUEUE_NUM);
for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
- tx_info = &txq->txb[txq->q.read_ptr];
- ieee80211_tx_status_irqsafe(il->hw, tx_info->skb);
- tx_info->skb = NULL;
+ skb = txq->skbs[txq->q.read_ptr];
+ ieee80211_tx_status_irqsafe(il->hw, skb);
+ txq->skbs[txq->q.read_ptr] = NULL;
il->ops->lib->txq_free_tfd(il, txq);
}
@@ -336,7 +336,7 @@ il3945_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
}
txq->time_stamp = jiffies;
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
+ info = IEEE80211_SKB_CB(txq->skbs[txq->q.read_ptr]);
ieee80211_tx_info_clear_status(info);
/* Fill the MRR chain with some info about on-chip retransmissions */
@@ -660,15 +660,13 @@ il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
PCI_DMA_TODEVICE);
/* free SKB */
- if (txq->txb) {
- struct sk_buff *skb;
-
- skb = txq->txb[txq->q.read_ptr].skb;
+ if (txq->skbs) {
+ struct sk_buff *skb = txq->skbs[txq->q.read_ptr];
/* can be called from irqs-disabled context */
if (skb) {
dev_kfree_skb_any(skb);
- txq->txb[txq->q.read_ptr].skb = NULL;
+ txq->skbs[txq->q.read_ptr] = NULL;
}
}
}
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 49dd1e0..2a52e7b 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -1753,9 +1753,7 @@ il4965_tx_skb(struct il_priv *il, struct sk_buff *skb)
spin_unlock(&il->sta_lock);
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info));
- txq->txb[q->write_ptr].skb = skb;
+ txq->skbs[q->write_ptr] = skb;
/* Set up first empty entry in queue's array of Tx/cmd buffers */
out_cmd = txq->cmd[q->write_ptr];
@@ -2435,14 +2433,14 @@ il4965_non_agg_tx_status(struct il_priv *il, const u8 *addr1)
}
static void
-il4965_tx_status(struct il_priv *il, struct il_tx_info *tx_info, bool is_agg)
+il4965_tx_status(struct il_priv *il, struct sk_buff *skb, bool is_agg)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (!is_agg)
il4965_non_agg_tx_status(il, hdr->addr1);
- ieee80211_tx_status_irqsafe(il->hw, tx_info->skb);
+ ieee80211_tx_status_irqsafe(il->hw, skb);
}
int
@@ -2450,9 +2448,9 @@ il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx)
{
struct il_tx_queue *txq = &il->txq[txq_id];
struct il_queue *q = &txq->q;
- struct il_tx_info *tx_info;
int nfreed = 0;
struct ieee80211_hdr *hdr;
+ struct sk_buff *skb;
if (idx >= q->n_bd || il_queue_used(q, idx) == 0) {
IL_ERR("Read idx for DMA queue txq id (%d), idx %d, "
@@ -2464,19 +2462,18 @@ il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx)
for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
- tx_info = &txq->txb[txq->q.read_ptr];
+ skb = txq->skbs[txq->q.read_ptr];
- if (WARN_ON_ONCE(tx_info->skb == NULL))
+ if (WARN_ON_ONCE(skb == NULL))
continue;
- hdr = (struct ieee80211_hdr *)tx_info->skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
if (ieee80211_is_data_qos(hdr->frame_control))
nfreed++;
- il4965_tx_status(il, tx_info,
- txq_id >= IL4965_FIRST_AMPDU_QUEUE);
- tx_info->skb = NULL;
+ il4965_tx_status(il, skb, txq_id >= IL4965_FIRST_AMPDU_QUEUE);
+ txq->skbs[txq->q.read_ptr] = NULL;
il->ops->lib->txq_free_tfd(il, txq);
}
return nfreed;
@@ -2540,7 +2537,7 @@ il4965_tx_status_reply_compressed_ba(struct il_priv *il, struct il_ht_agg *agg,
D_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
- info = IEEE80211_SKB_CB(il->txq[scd_flow].txb[agg->start_idx].skb);
+ info = IEEE80211_SKB_CB(il->txq[scd_flow].skbs[agg->start_idx]);
memset(&info->status, 0, sizeof(info->status));
info->flags |= IEEE80211_TX_STAT_ACK;
info->flags |= IEEE80211_TX_STAT_AMPDU;
@@ -3624,15 +3621,13 @@ il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
PCI_DMA_TODEVICE);
/* free SKB */
- if (txq->txb) {
- struct sk_buff *skb;
-
- skb = txq->txb[txq->q.read_ptr].skb;
+ if (txq->skbs) {
+ struct sk_buff *skb = txq->skbs[txq->q.read_ptr];
/* can be called from irqs-disabled context */
if (skb) {
dev_kfree_skb_any(skb);
- txq->txb[txq->q.read_ptr].skb = NULL;
+ txq->skbs[txq->q.read_ptr] = NULL;
}
}
}
diff --git a/drivers/net/wireless/iwlegacy/4965.c b/drivers/net/wireless/iwlegacy/4965.c
index cf1d016..17a6922 100644
--- a/drivers/net/wireless/iwlegacy/4965.c
+++ b/drivers/net/wireless/iwlegacy/4965.c
@@ -1873,7 +1873,7 @@ il4965_tx_status_reply_tx(struct il_priv *il, struct il_ht_agg *agg,
D_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
agg->frame_count, agg->start_idx, idx);
- info = IEEE80211_SKB_CB(il->txq[txq_id].txb[idx].skb);
+ info = IEEE80211_SKB_CB(il->txq[txq_id].skbs[idx]);
info->status.rates[0].count = tx_resp->failure_frame + 1;
info->flags &= ~IEEE80211_TX_CTL_AMPDU;
info->flags |= il4965_tx_status_to_mac80211(status);
@@ -1888,6 +1888,7 @@ il4965_tx_status_reply_tx(struct il_priv *il, struct il_ht_agg *agg,
/* Two or more frames were attempted; expect block-ack */
u64 bitmap = 0;
int start = agg->start_idx;
+ struct sk_buff *skb;
/* Construct bit-map of pending frames within Tx win */
for (i = 0; i < agg->frame_count; i++) {
@@ -1905,12 +1906,10 @@ il4965_tx_status_reply_tx(struct il_priv *il, struct il_ht_agg *agg,
D_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
agg->frame_count, txq_id, idx);
- hdr = il_tx_queue_get_hdr(il, txq_id, idx);
- if (!hdr) {
- IL_ERR("BUG_ON idx doesn't point to valid skb"
- " idx=%d, txq_id=%d\n", idx, txq_id);
+ skb = il->txq[txq_id].skbs[idx];
+ if (WARN_ON_ONCE(skb == NULL))
return -1;
- }
+ hdr = (struct ieee80211_hdr *) skb->data;
sc = le16_to_cpu(hdr->seq_ctrl);
if (idx != (SEQ_TO_SN(sc) & 0xff)) {
@@ -2018,6 +2017,7 @@ il4965_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
int txq_id = SEQ_TO_QUEUE(sequence);
int idx = SEQ_TO_IDX(sequence);
struct il_tx_queue *txq = &il->txq[txq_id];
+ struct sk_buff *skb;
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info;
struct il4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
@@ -2036,10 +2036,12 @@ il4965_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
}
txq->time_stamp = jiffies;
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
+
+ skb = txq->skbs[txq->q.read_ptr];
+ info = IEEE80211_SKB_CB(skb);
memset(&info->status, 0, sizeof(info->status));
- hdr = il_tx_queue_get_hdr(il, txq_id, idx);
+ hdr = (struct ieee80211_hdr *) skb->data;
if (ieee80211_is_data_qos(hdr->frame_control)) {
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 1173521..04ec38e 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -2755,8 +2755,8 @@ il_tx_queue_free(struct il_priv *il, int txq_id)
txq->tfds, txq->q.dma_addr);
/* De-alloc array of per-TFD driver data */
- kfree(txq->txb);
- txq->txb = NULL;
+ kfree(txq->skbs);
+ txq->skbs = NULL;
/* deallocate arrays */
kfree(txq->cmd);
@@ -2930,23 +2930,21 @@ il_tx_queue_alloc(struct il_priv *il, struct il_tx_queue *txq, u32 id)
/* Driver ilate data, only for Tx (not command) queues,
* not shared with device. */
if (id != il->cmd_queue) {
- txq->txb = kcalloc(TFD_QUEUE_SIZE_MAX, sizeof(txq->txb[0]),
- GFP_KERNEL);
- if (!txq->txb) {
- IL_ERR("kmalloc for auxiliary BD "
- "structures failed\n");
+ txq->skbs = kcalloc(TFD_QUEUE_SIZE_MAX, sizeof(struct skb *),
+ GFP_KERNEL);
+ if (!txq->skbs) {
+ IL_ERR("Fail to alloc skbs\n");
goto error;
}
- } else {
- txq->txb = NULL;
- }
+ } else
+ txq->skbs = NULL;
/* Circular buffer of transmit frame descriptors (TFDs),
* shared with device */
txq->tfds =
dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, GFP_KERNEL);
if (!txq->tfds) {
- IL_ERR("pci_alloc_consistent(%zd) failed\n", tfd_sz);
+ IL_ERR("Fail to alloc TFDs\n");
goto error;
}
txq->q.id = id;
@@ -2954,8 +2952,8 @@ il_tx_queue_alloc(struct il_priv *il, struct il_tx_queue *txq, u32 id)
return 0;
error:
- kfree(txq->txb);
- txq->txb = NULL;
+ kfree(txq->skbs);
+ txq->skbs = NULL;
return -ENOMEM;
}
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 21ed70a..527a1b9 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -143,11 +143,6 @@ struct il_queue {
* space less than this */
};
-/* One for each TFD */
-struct il_tx_info {
- struct sk_buff *skb;
-};
-
/**
* struct il_tx_queue - Tx Queue for DMA
* @q: generic Rx/Tx queue descriptor
@@ -155,7 +150,7 @@ struct il_tx_info {
* @cmd: array of command/TX buffer pointers
* @meta: array of meta data for each command/tx buffer
* @dma_addr_cmd: physical address of cmd/tx buffer array
- * @txb: array of per-TFD driver data
+ * @skbs: array of per-TFD socket buffer pointers
* @time_stamp: time (in jiffies) of last read_ptr change
* @need_update: indicates need to update read/write idx
* @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
@@ -171,7 +166,7 @@ struct il_tx_queue {
void *tfds;
struct il_device_cmd **cmd;
struct il_cmd_meta *meta;
- struct il_tx_info *txb;
+ struct sk_buff **skbs;
unsigned long time_stamp;
u8 need_update;
u8 sched_retry;
@@ -1482,15 +1477,6 @@ il_txq_ctx_deactivate(struct il_priv *il, int txq_id)
clear_bit(txq_id, &il->txq_ctx_active_msk);
}
-static inline struct ieee80211_hdr *
-il_tx_queue_get_hdr(struct il_priv *il, int txq_id, int idx)
-{
- if (il->txq[txq_id].txb[idx].skb)
- return (struct ieee80211_hdr *)il->txq[txq_id].txb[idx].skb->
- data;
- return NULL;
-}
-
static inline int
il_is_associated(struct il_priv *il)
{
--
1.7.1
--
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