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). */
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));
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) */
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 */
/* 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) ||
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;
}
txq = &priv->txq[txq_id];
+ swq_id = txq->swq_id;
q = &txq->q;
- txq->swq_id = swq_id;
spin_lock_irqsave(&priv->lock, flags);
/* 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),
+ &out_cmd->hdr, len,
PCI_DMA_BIDIRECTIONAL);
pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
- pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
+ pci_unmap_len_set(&out_cmd->meta, len, len);
/* Add buffer containing Tx command and MAC(!) header to TFD's
* first entry */
- txcmd_phys += offsetof(struct iwl_cmd, hdr);
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). */
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, 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_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(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
-
iwl_print_hex_dump(priv, 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);
+ 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);
}
}
INDEX_TO_SEQ(q->write_ptr));
if (out_cmd->meta.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_BIDIRECTIONAL);
- 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_cmd) - sizeof(struct iwl_cmd_meta);
+ len += (idx == TFD_CMD_SLOTS) ? IWL_MAX_SCAN_SIZE : 0;
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- phys_addr, fix_size, 1,
- U32_PAD(cmd->len));
#ifdef CONFIG_IWLWIFI_DEBUG
switch (out_cmd->hdr.cmd) {
/* 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_cmd->meta, mapping, phys_addr);
+ pci_unmap_len_set(&out_cmd->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);
ret = iwl_txq_update_write_ptr(priv, txq);
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;
}
__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_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
}
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) {
- IWL_ERR(priv, "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 {
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_WARN(priv, "Stopping AGG while state not IWL_AGG_ON\n");
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