/******************************************************************************
*
- * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
* file called LICENSE.
*
* Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
memset(ptr, 0, sizeof(*ptr));
}
-static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
-
- dma_addr_t addr = get_unaligned_le32(&tb->lo);
- if (sizeof(dma_addr_t) > sizeof(u32))
- addr |=
- ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
-
- return addr;
-}
-
-static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
-
- return le16_to_cpu(tb->hi_n_len) >> 4;
-}
-
-static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
- dma_addr_t addr, u16 len)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
- u16 hi_n_len = len << 4;
-
- put_unaligned_le32(addr, &tb->lo);
- if (sizeof(dma_addr_t) > sizeof(u32))
- hi_n_len |= ((addr >> 16) >> 16) & 0xF;
-
- tb->hi_n_len = cpu_to_le16(hi_n_len);
-
- tfd->num_tbs = idx + 1;
-}
-
-static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
-{
- return tfd->num_tbs & 0x1f;
-}
-
-/**
- * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
- * @priv - driver private data
- * @txq - tx queue
- *
- * Does NOT advance any TFD circular buffer read/write indexes
- * Does NOT free the TFD itself (which is within circular buffer)
- */
-static void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)&txq->tfds[0];
- struct iwl_tfd *tfd;
- struct pci_dev *dev = priv->pci_dev;
- int index = txq->q.read_ptr;
- int i;
- int num_tbs;
-
- tfd = &tfd_tmp[index];
-
- /* Sanity check on number of chunks */
- num_tbs = iwl_tfd_get_num_tbs(tfd);
-
- if (num_tbs >= IWL_NUM_OF_TBS) {
- IWL_ERROR("Too many chunks: %i\n", num_tbs);
- /* @todo issue fatal error, it is quite serious situation */
- return;
- }
-
- /* Unmap tx_cmd */
- if (num_tbs)
- pci_unmap_single(dev,
- pci_unmap_addr(&txq->cmd[index]->meta, mapping),
- pci_unmap_len(&txq->cmd[index]->meta, len),
- PCI_DMA_TODEVICE);
-
- /* Unmap chunks, if any. */
- for (i = 1; i < num_tbs; i++) {
- pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
- iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
-
- if (txq->txb) {
- dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]);
- txq->txb[txq->q.read_ptr].skb[i - 1] = NULL;
- }
- }
-}
-
-static int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
- struct iwl_tfd *tfd,
- dma_addr_t addr, u16 len)
-{
-
- u32 num_tbs = iwl_tfd_get_num_tbs(tfd);
-
- /* Each TFD can point to a maximum 20 Tx buffers */
- if (num_tbs >= IWL_NUM_OF_TBS) {
- IWL_ERROR("Error can not send more than %d chunks\n",
- IWL_NUM_OF_TBS);
- return -EINVAL;
- }
-
- BUG_ON(addr & ~DMA_BIT_MASK(36));
- if (unlikely(addr & ~IWL_TX_DMA_MASK))
- IWL_ERROR("Unaligned address = %llx\n",
- (unsigned long long)addr);
-
- iwl_tfd_set_tb(tfd, num_tbs, addr, len);
-
- return 0;
-}
-
/**
* iwl_txq_update_write_ptr - Send new write index to hardware
*/
reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
+ IWL_DEBUG_INFO(priv, "Requesting wakeup, GP1 = 0x%x\n", reg);
iwl_set_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
return ret;
}
- /* restore this queue's parameters in nic hardware. */
- ret = iwl_grab_nic_access(priv);
- if (ret)
- return ret;
iwl_write_direct32(priv, HBUS_TARG_WRPTR,
txq->q.write_ptr | (txq_id << 8));
- iwl_release_nic_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). */
* Free all buffers.
* 0-fill, but do not free "txq" descriptor structure.
*/
-static void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
+void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
{
struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct iwl_queue *q = &txq->q;
/* first, empty all BD's */
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);
+ priv->cfg->ops->lib->txq_free_tfd(priv, txq);
- len = sizeof(struct iwl_cmd) * q->n_window;
+ len = sizeof(struct iwl_device_cmd) * q->n_window;
/* De-alloc array of command/tx buffers */
for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
- pci_free_consistent(dev, sizeof(struct iwl_tfd) *
+ pci_free_consistent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);
/* De-alloc array of per-TFD driver data */
kfree(txq->txb);
txq->txb = NULL;
+ /* deallocate arrays */
+ kfree(txq->cmd);
+ kfree(txq->meta);
+ txq->cmd = NULL;
+ txq->meta = NULL;
+
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
-
+EXPORT_SYMBOL(iwl_tx_queue_free);
/**
* iwl_cmd_queue_free - Deallocate DMA queue.
* Free all buffers.
* 0-fill, but do not free "txq" descriptor structure.
*/
-static void iwl_cmd_queue_free(struct iwl_priv *priv)
+void iwl_cmd_queue_free(struct iwl_priv *priv)
{
struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
struct iwl_queue *q = &txq->q;
if (q->n_bd == 0)
return;
- len = sizeof(struct iwl_cmd) * q->n_window;
+ len = sizeof(struct iwl_device_cmd) * q->n_window;
len += IWL_MAX_SCAN_SIZE;
/* De-alloc array of command/tx buffers */
/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
- pci_free_consistent(dev, sizeof(struct iwl_tfd) *
+ pci_free_consistent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
+EXPORT_SYMBOL(iwl_cmd_queue_free);
+
/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
* DMA services
*
struct iwl_tx_queue *txq, u32 id)
{
struct pci_dev *dev = priv->pci_dev;
+ size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
/* Driver private data, only for Tx (not command) queues,
* not shared with device. */
txq->txb = kmalloc(sizeof(txq->txb[0]) *
TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
if (!txq->txb) {
- IWL_ERROR("kmalloc for auxiliary BD "
+ IWL_ERR(priv, "kmalloc for auxiliary BD "
"structures failed\n");
goto error;
}
- } else
+ } else {
txq->txb = NULL;
+ }
/* 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->q.dma_addr);
+ txq->tfds = pci_alloc_consistent(dev, tfd_sz, &txq->q.dma_addr);
if (!txq->tfds) {
- IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
- sizeof(txq->tfds[0]) * TFD_QUEUE_SIZE_MAX);
+ IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz);
goto error;
}
txq->q.id = id;
return -ENOMEM;
}
-/*
- * Tell nic where to find circular buffer of Tx Frame Descriptors for
- * given Tx queue, and enable the DMA channel used for that queue.
- *
- * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
- * channels supported in hardware.
- */
-static int iwl_hw_tx_queue_init(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- int ret;
- unsigned long flags;
- int txq_id = txq->q.id;
-
- spin_lock_irqsave(&priv->lock, flags);
- ret = iwl_grab_nic_access(priv);
- if (ret) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
- }
-
- /* Circular buffer (TFD queue in DRAM) physical base address */
- iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
- txq->q.dma_addr >> 8);
-
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
/**
* iwl_tx_queue_init - Allocate and initialize one tx/cmd queue
*/
-static int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id)
+int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+ int slots_num, u32 txq_id)
{
int i, len;
int ret;
+ int actual_slots = slots_num;
/*
* Alloc buffer array for commands (Tx or other types of commands).
* For normal Tx queues (all other queues), no super-size command
* space is needed.
*/
- 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;
- }
+ if (txq_id == IWL_CMD_QUEUE_NUM)
+ actual_slots++;
+
+ txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots,
+ GFP_KERNEL);
+ txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots,
+ GFP_KERNEL);
+
+ if (!txq->meta || !txq->cmd)
+ goto out_free_arrays;
+
+ len = sizeof(struct iwl_device_cmd);
+ for (i = 0; i < actual_slots; i++) {
+ /* only happens for cmd queue */
+ if (i == slots_num)
+ len += IWL_MAX_SCAN_SIZE;
txq->cmd[i] = kmalloc(len, GFP_KERNEL);
if (!txq->cmd[i])
txq->need_update = 0;
+ /* aggregation TX queues will get their ID when aggregation begins */
+ if (txq_id <= IWL_TX_FIFO_AC3)
+ txq->swq_id = txq_id;
+
/* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
* iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
/* Tell device where to find queue */
- iwl_hw_tx_queue_init(priv, txq);
+ priv->cfg->ops->lib->txq_init(priv, txq);
return 0;
err:
- for (i = 0; i < slots_num; i++) {
+ for (i = 0; i < actual_slots; i++)
kfree(txq->cmd[i]);
- txq->cmd[i] = NULL;
- }
+out_free_arrays:
+ kfree(txq->meta);
+ kfree(txq->cmd);
- if (txq_id == IWL_CMD_QUEUE_NUM) {
- kfree(txq->cmd[slots_num]);
- txq->cmd[slots_num] = NULL;
- }
return -ENOMEM;
}
+EXPORT_SYMBOL(iwl_tx_queue_init);
+
/**
* iwl_hw_txq_ctx_free - Free TXQ Context
*
ret = iwl_alloc_dma_ptr(priv, &priv->scd_bc_tbls,
priv->hw_params.scd_bc_tbls_size);
if (ret) {
- IWL_ERROR("Scheduler BC Table allocation failed\n");
+ IWL_ERR(priv, "Scheduler BC Table allocation failed\n");
goto error_bc_tbls;
}
/* Alloc keep-warm buffer */
ret = iwl_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE);
if (ret) {
- IWL_ERROR("Keep Warm allocation failed\n");
+ IWL_ERR(priv, "Keep Warm allocation failed\n");
goto error_kw;
}
spin_lock_irqsave(&priv->lock, flags);
- ret = iwl_grab_nic_access(priv);
- if (unlikely(ret)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- goto error_reset;
- }
/* Turn off all Tx DMA fifos */
priv->cfg->ops->lib->txq_set_sched(priv, 0);
/* Tell NIC where to find the "keep warm" buffer */
iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
- iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
/* Alloc and init all Tx queues, including the command queue (#4) */
ret = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
txq_id);
if (ret) {
- IWL_ERROR("Tx %d queue init failed\n", txq_id);
+ IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
goto error;
}
}
error:
iwl_hw_txq_ctx_free(priv);
- error_reset:
iwl_free_dma_ptr(priv, &priv->kw);
error_kw:
iwl_free_dma_ptr(priv, &priv->scd_bc_tbls);
/* Turn off all Tx DMA fifos */
spin_lock_irqsave(&priv->lock, flags);
- if (iwl_grab_nic_access(priv)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
priv->cfg->ops->lib->txq_set_sched(priv, 0);
FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch),
1000);
}
- iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
/* Deallocate memory for all Tx queues */
struct iwl_tx_cmd *tx_cmd,
struct ieee80211_tx_info *info,
struct ieee80211_hdr *hdr,
- int is_unicast, u8 std_id)
+ u8 std_id)
{
__le16 fc = hdr->frame_control;
__le32 tx_flags = tx_cmd->tx_flags;
memcpy(tx_cmd->key, keyconf->key, keyconf->keylen);
if (info->flags & IEEE80211_TX_CTL_AMPDU)
tx_cmd->tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
- IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
+ IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
break;
case ALG_TKIP:
tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
ieee80211_get_tkip_key(keyconf, skb_frag,
IEEE80211_TKIP_P2_KEY, tx_cmd->key);
- IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
+ IWL_DEBUG_TX(priv, "tx_cmd with tkip hwcrypto\n");
break;
case ALG_WEP:
memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
- IWL_DEBUG_TX("Configuring packet for WEP encryption "
+ IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
"with key %d\n", keyconf->keyidx);
break;
default:
- printk(KERN_ERR "Unknown encode alg %d\n", keyconf->alg);
+ IWL_ERR(priv, "Unknown encode alg %d\n", keyconf->alg);
break;
}
}
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct iwl_tfd *tfd;
struct iwl_tx_queue *txq;
struct iwl_queue *q;
- struct iwl_cmd *out_cmd;
+ struct iwl_device_cmd *out_cmd;
+ struct iwl_cmd_meta *out_meta;
struct iwl_tx_cmd *tx_cmd;
int swq_id, txq_id;
dma_addr_t phys_addr;
u16 len, len_org;
u16 seq_number = 0;
__le16 fc;
- u8 hdr_len, unicast;
+ u8 hdr_len;
u8 sta_id;
u8 wait_write_ptr = 0;
u8 tid = 0;
spin_lock_irqsave(&priv->lock, flags);
if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_DROP("Dropping - RF KILL\n");
+ IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
goto drop_unlock;
}
if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) ==
IWL_INVALID_RATE) {
- IWL_ERROR("ERROR: No TX rate available.\n");
+ IWL_ERR(priv, "ERROR: No TX rate available.\n");
goto drop_unlock;
}
- unicast = !is_multicast_ether_addr(hdr->addr1);
-
fc = hdr->frame_control;
#ifdef CONFIG_IWLWIFI_DEBUG
if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX("Sending AUTH frame\n");
+ IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
else if (ieee80211_is_assoc_req(fc))
- IWL_DEBUG_TX("Sending ASSOC frame\n");
+ IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
else if (ieee80211_is_reassoc_req(fc))
- IWL_DEBUG_TX("Sending REASSOC frame\n");
+ IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
#endif
/* drop all data frame if we are not associated */
if (ieee80211_is_data(fc) &&
- (priv->iw_mode != NL80211_IFTYPE_MONITOR ||
+ (!iwl_is_monitor_mode(priv) ||
!(info->flags & IEEE80211_TX_CTL_INJECTED)) && /* packet injection */
(!iwl_is_associated(priv) ||
((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id) ||
!priv->assoc_station_added)) {
- IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
+ IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
goto drop_unlock;
}
/* Find (or create) index into station table for destination station */
sta_id = iwl_get_sta_id(priv, hdr);
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
+ IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
hdr->addr1);
goto drop;
}
- IWL_DEBUG_TX("station Id %d\n", sta_id);
+ IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
- swq_id = skb_get_queue_mapping(skb);
- txq_id = swq_id;
+ txq_id = skb_get_queue_mapping(skb);
if (ieee80211_is_data_qos(fc)) {
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
seq_number = priv->stations[sta_id].tid[tid].seq_number;
seq_number &= IEEE80211_SCTL_SEQ;
hdr->seq_ctrl = hdr->seq_ctrl &
- __constant_cpu_to_le16(IEEE80211_SCTL_FRAG);
+ cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(seq_number);
seq_number += 0x10;
/* aggregation is on for this <sta,tid> */
}
txq = &priv->txq[txq_id];
+ swq_id = txq->swq_id;
q = &txq->q;
- txq->swq_id = swq_id;
spin_lock_irqsave(&priv->lock, flags);
- /* Set up first empty TFD within this queue's circular TFD buffer */
- tfd = &txq->tfds[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
-
/* Set up driver data for this TFD */
memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
txq->txb[q->write_ptr].skb[0] = skb;
/* Set up first empty entry in queue's array of Tx/cmd buffers */
out_cmd = txq->cmd[q->write_ptr];
+ out_meta = &txq->meta[q->write_ptr];
tx_cmd = &out_cmd->cmd.tx;
memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd));
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, hdr_len);
+
+ /* Total # bytes to be transmitted */
+ len = (u16)skb->len;
+ tx_cmd->len = cpu_to_le16(len);
+
+ if (info->control.hw_key)
+ iwl_tx_cmd_build_hwcrypto(priv, info, tx_cmd, skb, sta_id);
+
+ /* TODO need this for burst mode later on */
+ iwl_tx_cmd_build_basic(priv, tx_cmd, info, hdr, sta_id);
+
+ /* set is_hcca to 0; it probably will never be implemented */
+ iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, sta_id, 0);
+
+ iwl_update_tx_stats(priv, le16_to_cpu(fc), len);
+
/*
* Use the first empty entry in this queue's command buffer array
* to contain the Tx command and MAC header concatenated together
else
len_org = 0;
+ /* Tell NIC about any 2-byte padding after MAC header */
+ if (len_org)
+ tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
+
/* Physical address of this Tx command's header (not MAC header!),
* within command buffer array. */
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));
+ &out_cmd->hdr, len,
+ PCI_DMA_BIDIRECTIONAL);
+ pci_unmap_addr_set(out_meta, mapping, txcmd_phys);
+ pci_unmap_len_set(out_meta, len, len);
/* Add buffer containing Tx command and MAC(!) header to TFD's
* first entry */
- txcmd_phys += offsetof(struct iwl_cmd, hdr);
- iwl_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
+ priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
+ txcmd_phys, len, 1, 0);
- if (info->control.hw_key)
- iwl_tx_cmd_build_hwcrypto(priv, info, tx_cmd, skb, sta_id);
+ if (!ieee80211_has_morefrags(hdr->frame_control)) {
+ txq->need_update = 1;
+ if (qc)
+ priv->stations[sta_id].tid[tid].seq_number = seq_number;
+ } else {
+ wait_write_ptr = 1;
+ txq->need_update = 0;
+ }
/* Set up TFD's 2nd entry to point directly to remainder of skb,
* if any (802.11 null frames have no payload). */
if (len) {
phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
len, PCI_DMA_TODEVICE);
- iwl_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
+ priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
+ phys_addr, len,
+ 0, 0);
}
- /* Tell NIC about any 2-byte padding after MAC header */
- if (len_org)
- tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
-
- /* Total # bytes to be transmitted */
- len = (u16)skb->len;
- tx_cmd->len = cpu_to_le16(len);
- /* TODO need this for burst mode later on */
- iwl_tx_cmd_build_basic(priv, tx_cmd, info, hdr, unicast, sta_id);
-
- /* set is_hcca to 0; it probably will never be implemented */
- iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, sta_id, 0);
-
- iwl_update_tx_stats(priv, le16_to_cpu(fc), len);
-
scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl_tx_cmd, scratch);
+ offsetof(struct iwl_tx_cmd, scratch);
+
+ len = sizeof(struct iwl_tx_cmd) +
+ sizeof(struct iwl_cmd_header) + hdr_len;
+ /* take back ownership of DMA buffer to enable update */
+ pci_dma_sync_single_for_cpu(priv->pci_dev, txcmd_phys,
+ len, PCI_DMA_BIDIRECTIONAL);
tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys);
tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys);
- if (!ieee80211_has_morefrags(hdr->frame_control)) {
- txq->need_update = 1;
- if (qc)
- priv->stations[sta_id].tid[tid].seq_number = seq_number;
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
-
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
+ IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
+ le16_to_cpu(out_cmd->hdr.sequence));
+ IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags));
+ iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
+ iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
/* Set up entry for this TFD in Tx byte-count array */
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, len);
+ if (info->flags & IEEE80211_TX_CTL_AMPDU)
+ priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq,
+ le16_to_cpu(tx_cmd->len));
+
+ pci_dma_sync_single_for_device(priv->pci_dev, txcmd_phys,
+ len, PCI_DMA_BIDIRECTIONAL);
/* Tell device the write index *just past* this latest filled TFD */
q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
iwl_txq_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->lock, flags);
} else {
- ieee80211_stop_queue(priv->hw, txq->swq_id);
+ iwl_stop_queue(priv, txq->swq_id);
}
}
{
struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
struct iwl_queue *q = &txq->q;
- struct iwl_tfd *tfd;
- struct iwl_cmd *out_cmd;
+ struct iwl_device_cmd *out_cmd;
+ struct iwl_cmd_meta *out_meta;
dma_addr_t phys_addr;
unsigned long flags;
int len, ret;
* the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
* we will need to increase the size of the TFD entries */
BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
- !(cmd->meta.flags & CMD_SIZE_HUGE));
+ !(cmd->flags & CMD_SIZE_HUGE));
if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_INFO("Not sending command - RF KILL");
+ IWL_DEBUG_INFO(priv, "Not sending command - RF KILL\n");
return -EIO;
}
- if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
- IWL_ERROR("No space for Tx\n");
+ if (iwl_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
+ IWL_ERR(priv, "No space for Tx\n");
return -ENOSPC;
}
spin_lock_irqsave(&priv->hcmd_lock, flags);
- tfd = &txq->tfds[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
-
-
- idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
+ idx = get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
out_cmd = txq->cmd[idx];
+ out_meta = &txq->meta[idx];
+
+ out_meta->flags = cmd->flags;
+ if (cmd->flags & CMD_WANT_SKB)
+ out_meta->source = cmd;
+ if (cmd->flags & CMD_ASYNC)
+ out_meta->callback = cmd->callback;
out_cmd->hdr.cmd = cmd->id;
- memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
/* At this point, the out_cmd now has all of the incoming cmd
out_cmd->hdr.flags = 0;
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
INDEX_TO_SEQ(q->write_ptr));
- if (out_cmd->meta.flags & CMD_SIZE_HUGE)
+ if (cmd->flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
- 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);
+ len = sizeof(struct iwl_device_cmd);
+ len += (idx == TFD_CMD_SLOTS) ? IWL_MAX_SCAN_SIZE : 0;
- iwl_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
#ifdef CONFIG_IWLWIFI_DEBUG
switch (out_cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
- IWL_DEBUG_HC_DUMP("Sending command %s (#%x), seq: 0x%04X, "
+ IWL_DEBUG_HC_DUMP(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
break;
default:
- IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
+ IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
#endif
txq->need_update = 1;
- /* Set up entry in queue's byte count circular buffer */
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
+ if (priv->cfg->ops->lib->txq_update_byte_cnt_tbl)
+ /* Set up entry in queue's byte count circular buffer */
+ priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
+
+ phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr,
+ fix_size, PCI_DMA_BIDIRECTIONAL);
+ pci_unmap_addr_set(out_meta, mapping, phys_addr);
+ pci_unmap_len_set(out_meta, len, fix_size);
+
+ priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
+ phys_addr, fix_size, 1,
+ U32_PAD(cmd->len));
/* Increment and update queue's write index */
q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
int nfreed = 0;
if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
- IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
+ IWL_ERR(priv, "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->write_ptr, q->read_ptr);
return 0;
if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)
priv->cfg->ops->lib->txq_inval_byte_cnt_tbl(priv, txq);
- iwl_hw_txq_free_tfd(priv, txq);
+ priv->cfg->ops->lib->txq_free_tfd(priv, txq);
nfreed++;
}
return nfreed;
int nfreed = 0;
if ((idx >= q->n_bd) || (iwl_queue_used(q, idx) == 0)) {
- IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
+ IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
"is out of range [0-%d] %d %d.\n", txq_id,
idx, q->n_bd, q->write_ptr, q->read_ptr);
return;
}
pci_unmap_single(priv->pci_dev,
- pci_unmap_addr(&txq->cmd[cmd_idx]->meta, mapping),
- pci_unmap_len(&txq->cmd[cmd_idx]->meta, len),
- PCI_DMA_TODEVICE);
+ pci_unmap_addr(&txq->meta[cmd_idx], mapping),
+ pci_unmap_len(&txq->meta[cmd_idx], len),
+ PCI_DMA_BIDIRECTIONAL);
for (idx = iwl_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
if (nfreed++ > 0) {
- IWL_ERROR("HCMD skipped: index (%d) %d %d\n", idx,
+ IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", idx,
q->write_ptr, q->read_ptr);
queue_work(priv->workqueue, &priv->restart);
}
int index = SEQ_TO_INDEX(sequence);
int cmd_index;
bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
- struct iwl_cmd *cmd;
+ struct iwl_device_cmd *cmd;
+ struct iwl_cmd_meta *meta;
/* If a Tx command is being handled and it isn't in the actual
* command queue then there a command routing bug has been introduced
txq_id, sequence,
priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr,
priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) {
- iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32);
+ iwl_print_hex_error(priv, rxb, 32);
return;
}
cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+ meta = &priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_index];
/* Input error checking is done when commands are added to queue. */
- if (cmd->meta.flags & CMD_WANT_SKB) {
- cmd->meta.source->u.skb = rxb->skb;
+ if (meta->flags & CMD_WANT_SKB) {
+ meta->source->reply_skb = rxb->skb;
rxb->skb = NULL;
- } else if (cmd->meta.u.callback &&
- !cmd->meta.u.callback(priv, cmd, rxb->skb))
+ } else if (meta->callback && !meta->callback(priv, cmd, rxb->skb))
rxb->skb = NULL;
iwl_hcmd_queue_reclaim(priv, txq_id, index, cmd_index);
- if (!(cmd->meta.flags & CMD_ASYNC)) {
+ if (!(meta->flags & CMD_ASYNC)) {
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
wake_up_interruptible(&priv->wait_command_queue);
}
else
return -EINVAL;
- IWL_WARNING("%s on ra = %pM tid = %d\n",
+ IWL_WARN(priv, "%s on ra = %pM tid = %d\n",
__func__, ra, tid);
sta_id = iwl_find_station(priv, ra);
- if (sta_id == IWL_INVALID_STATION)
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_ERR(priv, "Start AGG on invalid station\n");
return -ENXIO;
+ }
if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
- IWL_ERROR("Start AGG when state is not IWL_AGG_OFF !\n");
+ IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
return -ENXIO;
}
txq_id = iwl_txq_ctx_activate_free(priv);
- if (txq_id == -1)
+ if (txq_id == -1) {
+ IWL_ERR(priv, "No free aggregation queue available\n");
return -ENXIO;
+ }
spin_lock_irqsave(&priv->sta_lock, flags);
tid_data = &priv->stations[sta_id].tid[tid];
*ssn = SEQ_TO_SN(tid_data->seq_number);
tid_data->agg.txq_id = txq_id;
+ priv->txq[txq_id].swq_id = iwl_virtual_agg_queue_num(tx_fifo, txq_id);
spin_unlock_irqrestore(&priv->sta_lock, flags);
ret = priv->cfg->ops->lib->txq_agg_enable(priv, txq_id, tx_fifo,
return ret;
if (tid_data->tfds_in_queue == 0) {
- printk(KERN_ERR "HW queue is empty\n");
+ IWL_DEBUG_HT(priv, "HW queue is empty\n");
tid_data->agg.state = IWL_AGG_ON;
ieee80211_start_tx_ba_cb_irqsafe(priv->hw, ra, tid);
} else {
- IWL_DEBUG_HT("HW queue is NOT empty: %d packets in HW queue\n",
+ IWL_DEBUG_HT(priv, "HW queue is NOT empty: %d packets in HW queue\n",
tid_data->tfds_in_queue);
tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA;
}
unsigned long flags;
if (!ra) {
- IWL_ERROR("ra = NULL\n");
+ IWL_ERR(priv, "ra = NULL\n");
return -EINVAL;
}
sta_id = iwl_find_station(priv, ra);
- if (sta_id == IWL_INVALID_STATION)
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
return -ENXIO;
+ }
if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_ON)
- IWL_WARNING("Stopping AGG while state not IWL_AGG_ON\n");
+ IWL_WARN(priv, "Stopping AGG while state not IWL_AGG_ON\n");
tid_data = &priv->stations[sta_id].tid[tid];
ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
/* The queue is not empty */
if (write_ptr != read_ptr) {
- IWL_DEBUG_HT("Stopping a non empty AGG HW QUEUE\n");
+ IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n");
priv->stations[sta_id].tid[tid].agg.state =
IWL_EMPTYING_HW_QUEUE_DELBA;
return 0;
}
- IWL_DEBUG_HT("HW queue is empty\n");
+ IWL_DEBUG_HT(priv, "HW queue is empty\n");
priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
spin_lock_irqsave(&priv->lock, flags);
(q->read_ptr == q->write_ptr)) {
u16 ssn = SEQ_TO_SN(tid_data->seq_number);
int tx_fifo = default_tid_to_tx_fifo[tid];
- IWL_DEBUG_HT("HW queue empty: continue DELBA flow\n");
+ IWL_DEBUG_HT(priv, "HW queue empty: continue DELBA flow\n");
priv->cfg->ops->lib->txq_agg_disable(priv, txq_id,
ssn, tx_fifo);
tid_data->agg.state = IWL_AGG_OFF;
case IWL_EMPTYING_HW_QUEUE_ADDBA:
/* We are reclaiming the last packet of the queue */
if (tid_data->tfds_in_queue == 0) {
- IWL_DEBUG_HT("HW queue empty: continue ADDBA flow\n");
+ IWL_DEBUG_HT(priv, "HW queue empty: continue ADDBA flow\n");
tid_data->agg.state = IWL_AGG_ON;
ieee80211_start_tx_ba_cb_irqsafe(priv->hw, addr, tid);
}
struct ieee80211_tx_info *info;
if (unlikely(!agg->wait_for_ba)) {
- IWL_ERROR("Received BA when not expected\n");
+ IWL_ERR(priv, "Received BA when not expected\n");
return -EINVAL;
}
/* Mark that the expected block-ack response arrived */
agg->wait_for_ba = 0;
- IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
+ IWL_DEBUG_TX_REPLY(priv, "BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
/* Calculate shift to align block-ack bits with our Tx window bits */
sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl >> 4);
bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
if (agg->frame_count > (64 - sh)) {
- IWL_DEBUG_TX_REPLY("more frames than bitmap size");
+ IWL_DEBUG_TX_REPLY(priv, "more frames than bitmap size");
return -1;
}
for (i = 0; i < agg->frame_count ; i++) {
ack = bitmap & (1ULL << i);
successes += !!ack;
- IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
+ IWL_DEBUG_TX_REPLY(priv, "%s ON i=%d idx=%d raw=%d\n",
ack ? "ACK" : "NACK", i, (agg->start_idx + i) & 0xff,
agg->start_idx + i);
}
info->status.ampdu_ack_len = agg->frame_count;
iwl_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
- IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
+ IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n", (unsigned long long)bitmap);
return 0;
}
u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
if (scd_flow >= priv->hw_params.max_txq_num) {
- IWL_ERROR("BUG_ON scd_flow is bigger than number of queues\n");
+ IWL_ERR(priv,
+ "BUG_ON scd_flow is bigger than number of queues\n");
return;
}
/* TODO: Need to get this copy more safely - now good for debug */
- IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d] Received from %pM, "
+ IWL_DEBUG_TX_REPLY(priv, "REPLY_COMPRESSED_BA [%d] Received from %pM, "
"sta_id = %d\n",
agg->wait_for_ba,
(u8 *) &ba_resp->sta_addr_lo32,
ba_resp->sta_id);
- IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
+ IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
"%d, scd_ssn = %d\n",
ba_resp->tid,
ba_resp->seq_ctl,
(unsigned long long)le64_to_cpu(ba_resp->bitmap),
ba_resp->scd_flow,
ba_resp->scd_ssn);
- IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n",
+ IWL_DEBUG_TX_REPLY(priv, "DAT start_idx = %d, bitmap = 0x%llx \n",
agg->start_idx,
(unsigned long long)agg->bitmap);
if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
priv->mac80211_registered &&
(agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
- ieee80211_wake_queue(priv->hw, txq->swq_id);
+ iwl_wake_queue(priv, txq->swq_id);
iwl_txq_check_empty(priv, sta_id, tid, scd_flow);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff