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path: root/drivers/net/wireless/iwlwifi/iwl3945-base.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl3945-base.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c125
1 files changed, 77 insertions, 48 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index c37fa00af6d..53e274a5f4f 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -57,7 +57,7 @@
#include "iwl-dev.h"
static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl3945_tx_queue *txq);
+ struct iwl_tx_queue *txq);
/*
* module name, copyright, version, etc.
@@ -162,7 +162,7 @@ static int iwl3945_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
* iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
*/
static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
- struct iwl3945_tx_queue *txq, u32 id)
+ struct iwl_tx_queue *txq, u32 id)
{
struct pci_dev *dev = priv->pci_dev;
@@ -181,13 +181,13 @@ static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
/* Circular buffer of transmit frame descriptors (TFDs),
* shared with device */
- txq->tfds = pci_alloc_consistent(dev,
- sizeof(txq->tfds[0]) * TFD_QUEUE_SIZE_MAX,
+ txq->tfds39 = pci_alloc_consistent(dev,
+ sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX,
&txq->q.dma_addr);
- if (!txq->tfds) {
+ if (!txq->tfds39) {
IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n",
- sizeof(txq->tfds[0]) * TFD_QUEUE_SIZE_MAX);
+ sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX);
goto error;
}
txq->q.id = id;
@@ -205,10 +205,9 @@ static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
* iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
*/
int iwl3945_tx_queue_init(struct iwl_priv *priv,
- struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id)
+ struct iwl_tx_queue *txq, int slots_num, u32 txq_id)
{
- struct pci_dev *dev = priv->pci_dev;
- int len;
+ int len, i;
int rc = 0;
/*
@@ -219,20 +218,25 @@ int iwl3945_tx_queue_init(struct iwl_priv *priv,
* For data Tx queues (all other queues), no super-size command
* space is needed.
*/
- len = sizeof(struct iwl_cmd) * slots_num;
- if (txq_id == IWL_CMD_QUEUE_NUM)
- len += IWL_MAX_SCAN_SIZE;
- txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
- if (!txq->cmd)
- return -ENOMEM;
+ len = sizeof(struct iwl_cmd);
+ for (i = 0; i <= slots_num; i++) {
+ if (i == slots_num) {
+ if (txq_id == IWL_CMD_QUEUE_NUM)
+ len += IWL_MAX_SCAN_SIZE;
+ else
+ continue;
+ }
+
+ txq->cmd[i] = kmalloc(len, GFP_KERNEL);
+ if (!txq->cmd[i])
+ goto err;
+ }
/* Alloc driver data array and TFD circular buffer */
rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
- if (rc) {
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+ if (rc)
+ goto err;
- return -ENOMEM;
- }
txq->need_update = 0;
/* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
@@ -246,6 +250,17 @@ int iwl3945_tx_queue_init(struct iwl_priv *priv,
iwl3945_hw_tx_queue_init(priv, txq);
return 0;
+err:
+ for (i = 0; i < slots_num; i++) {
+ kfree(txq->cmd[i]);
+ txq->cmd[i] = NULL;
+ }
+
+ if (txq_id == IWL_CMD_QUEUE_NUM) {
+ kfree(txq->cmd[slots_num]);
+ txq->cmd[slots_num] = NULL;
+ }
+ return -ENOMEM;
}
/**
@@ -256,11 +271,11 @@ int iwl3945_tx_queue_init(struct iwl_priv *priv,
* Free all buffers.
* 0-fill, but do not free "txq" descriptor structure.
*/
-void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl3945_tx_queue *txq)
+void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_queue *q = &txq->q;
struct pci_dev *dev = priv->pci_dev;
- int len;
+ int len, i;
if (q->n_bd == 0)
return;
@@ -275,12 +290,13 @@ void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl3945_tx_queue *txq)
len += IWL_MAX_SCAN_SIZE;
/* De-alloc array of command/tx buffers */
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+ for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
+ kfree(txq->cmd[i]);
/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
pci_free_consistent(dev, sizeof(struct iwl3945_tfd) *
- txq->q.n_bd, txq->tfds, txq->q.dma_addr);
+ txq->q.n_bd, txq->tfds39, txq->q.dma_addr);
/* De-alloc array of per-TFD driver data */
kfree(txq->txb);
@@ -444,7 +460,7 @@ u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flag
*/
static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
- struct iwl3945_tx_queue *txq = &priv->txq39[IWL_CMD_QUEUE_NUM];
+ struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
struct iwl_queue *q = &txq->q;
struct iwl3945_tfd *tfd;
struct iwl_cmd *out_cmd;
@@ -452,7 +468,7 @@ static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
dma_addr_t phys_addr;
int pad;
- int ret;
+ int ret, len;
unsigned long flags;
/* If any of the command structures end up being larger than
@@ -474,11 +490,11 @@ static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
spin_lock_irqsave(&priv->hcmd_lock, flags);
- tfd = &txq->tfds[q->write_ptr];
+ tfd = &txq->tfds39[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
- out_cmd = &txq->cmd[idx];
+ out_cmd = txq->cmd[idx];
out_cmd->hdr.cmd = cmd->id;
memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
@@ -493,8 +509,15 @@ static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
if (out_cmd->meta.flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
- phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
- offsetof(struct iwl_cmd, hdr);
+ len = (idx == TFD_CMD_SLOTS) ?
+ IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd);
+
+ phys_addr = pci_map_single(priv->pci_dev, out_cmd,
+ len, PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr);
+ pci_unmap_len_set(&out_cmd->meta, len, len);
+ phys_addr += offsetof(struct iwl_cmd, hdr);
+
iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
pad = U32_PAD(cmd->len);
@@ -620,7 +643,7 @@ cancel:
* TX cmd queue. Otherwise in case the cmd comes
* in later, it will possibly set an invalid
* address (cmd->meta.source). */
- qcmd = &priv->txq39[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
+ qcmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
qcmd->meta.flags &= ~CMD_WANT_SKB;
}
fail:
@@ -2229,7 +2252,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl3945_tfd *tfd;
int txq_id = skb_get_queue_mapping(skb);
- struct iwl3945_tx_queue *txq = NULL;
+ struct iwl_tx_queue *txq = NULL;
struct iwl_queue *q = NULL;
dma_addr_t phys_addr;
dma_addr_t txcmd_phys;
@@ -2306,13 +2329,13 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
}
/* Descriptor for chosen Tx queue */
- txq = &priv->txq39[txq_id];
+ txq = &priv->txq[txq_id];
q = &txq->q;
spin_lock_irqsave(&priv->lock, flags);
/* Set up first empty TFD within this queue's circular TFD buffer */
- tfd = &txq->tfds[q->write_ptr];
+ tfd = &txq->tfds39[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
idx = get_cmd_index(q, q->write_ptr, 0);
@@ -2321,7 +2344,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
txq->txb[q->write_ptr].skb[0] = skb;
/* Init first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = &txq->cmd[idx];
+ 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));
@@ -2360,8 +2383,14 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
/* Physical address of this Tx command's header (not MAC header!),
* within command buffer array. */
- txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
- offsetof(struct iwl_cmd, hdr);
+ txcmd_phys = pci_map_single(priv->pci_dev,
+ out_cmd, sizeof(struct iwl_cmd),
+ PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
+ pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
+ /* Add buffer containing Tx command and MAC(!) header to TFD's
+ * first entry */
+ txcmd_phys += offsetof(struct iwl_cmd, hdr);
/* Add buffer containing Tx command and MAC(!) header to TFD's
* first entry */
@@ -3076,7 +3105,7 @@ static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
int txq_id, int index)
{
- struct iwl3945_tx_queue *txq = &priv->txq39[txq_id];
+ struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct iwl_queue *q = &txq->q;
int nfreed = 0;
@@ -3121,8 +3150,8 @@ static void iwl3945_tx_cmd_complete(struct iwl_priv *priv,
BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
- cmd_index = get_cmd_index(&priv->txq39[IWL_CMD_QUEUE_NUM].q, index, huge);
- cmd = &priv->txq39[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+ cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
+ cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
/* Input error checking is done when commands are added to queue. */
if (cmd->meta.flags & CMD_WANT_SKB) {
@@ -3678,7 +3707,7 @@ static void iwl3945_rx_handle(struct iwl_priv *priv)
* iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
*/
static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl3945_tx_queue *txq)
+ struct iwl_tx_queue *txq)
{
u32 reg = 0;
int rc = 0;
@@ -4088,12 +4117,12 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
if (inta & CSR_INT_BIT_WAKEUP) {
IWL_DEBUG_ISR("Wakeup interrupt\n");
iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[0]);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[1]);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[2]);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[3]);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[4]);
- iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[5]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]);
handled |= CSR_INT_BIT_WAKEUP;
}
@@ -6735,7 +6764,7 @@ static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
{
struct iwl_priv *priv = hw->priv;
int i, avail;
- struct iwl3945_tx_queue *txq;
+ struct iwl_tx_queue *txq;
struct iwl_queue *q;
unsigned long flags;
@@ -6749,7 +6778,7 @@ static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
spin_lock_irqsave(&priv->lock, flags);
for (i = 0; i < AC_NUM; i++) {
- txq = &priv->txq39[i];
+ txq = &priv->txq[i];
q = &txq->q;
avail = iwl_queue_space(q);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-25 08:12:31 +0000