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提交 45eb400d 编写于 作者: L Lennert Buytenhek 提交者： John W. Linville
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mwl8k: shorten receive/transmit state variable names 

To conserve horizontal space.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 a43c49a8
隐藏空白更改
内联 并排
Showing with 93 addition and 101 deletion
drivers/net/wireless/mwl8k.c
浏览文件 @ 45eb400d
......@@ -88,30 +88,30 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table);
#define MWL8K_TX_QUEUES 4
struct mwl8k_rx_queue {
int rx_desc_count;
int rxd_count;
/* hw receives here */
int rx_head;
int head;
/* refill descs here */
int rx_tail;
int tail;
struct mwl8k_rx_desc *rx_desc_area;
dma_addr_t rx_desc_dma;
struct sk_buff **rx_skb;
struct mwl8k_rx_desc *rxd;
dma_addr_t rxd_dma;
struct sk_buff **skb;
};
struct mwl8k_tx_queue {
/* hw transmits here */
int tx_head;
int head;
/* sw appends here */
int tx_tail;
int tail;
struct ieee80211_tx_queue_stats tx_stats;
struct mwl8k_tx_desc *tx_desc_area;
dma_addr_t tx_desc_dma;
struct sk_buff **tx_skb;
struct ieee80211_tx_queue_stats stats;
struct mwl8k_tx_desc *txd;
dma_addr_t txd_dma;
struct sk_buff **skb;
};
/* Pointers to the firmware data and meta information about it. */
......@@ -738,7 +738,7 @@ struct mwl8k_rx_desc {
__u8 link_quality;
__u8 noise_level;
__le32 pkt_phys_addr;
__le32 next_rx_desc_phys_addr;
__le32 next_rxd_phys_addr;
__le16 qos_control;
__le16 rate_info;
__le32 pad0[4];
......@@ -767,42 +767,38 @@ static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
int size;
int i;
rxq->rx_desc_count = 0;
rxq->rx_head = 0;
rxq->rx_tail = 0;
rxq->rxd_count = 0;
rxq->head = 0;
rxq->tail = 0;
size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc);
rxq->rx_desc_area =
pci_alloc_consistent(priv->pdev, size, &rxq->rx_desc_dma);
if (rxq->rx_desc_area == NULL) {
rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
if (rxq->rxd == NULL) {
printk(KERN_ERR "%s: failed to alloc RX descriptors\n",
wiphy_name(hw->wiphy));
return -ENOMEM;
}
memset(rxq->rx_desc_area, 0, size);
memset(rxq->rxd, 0, size);
rxq->rx_skb = kmalloc(MWL8K_RX_DESCS *
sizeof(*rxq->rx_skb), GFP_KERNEL);
if (rxq->rx_skb == NULL) {
rxq->skb = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->skb), GFP_KERNEL);
if (rxq->skb == NULL) {
printk(KERN_ERR "%s: failed to alloc RX skbuff list\n",
wiphy_name(hw->wiphy));
pci_free_consistent(priv->pdev, size,
rxq->rx_desc_area, rxq->rx_desc_dma);
pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
return -ENOMEM;
}
memset(rxq->rx_skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->rx_skb));
memset(rxq->skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->skb));
for (i = 0; i < MWL8K_RX_DESCS; i++) {
struct mwl8k_rx_desc *rx_desc;
int nexti;
rx_desc = rxq->rx_desc_area + i;
rx_desc = rxq->rxd + i;
nexti = (i + 1) % MWL8K_RX_DESCS;
rx_desc->next_rx_desc_phys_addr =
cpu_to_le32(rxq->rx_desc_dma
+ nexti * sizeof(*rx_desc));
rx_desc->next_rxd_phys_addr =
cpu_to_le32(rxq->rxd_dma + nexti * sizeof(*rx_desc));
rx_desc->rx_ctrl = MWL8K_RX_CTRL_OWNED_BY_HOST;
}
......@@ -816,7 +812,7 @@ static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
int refilled;
refilled = 0;
while (rxq->rx_desc_count < MWL8K_RX_DESCS && limit--) {
while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
struct sk_buff *skb;
int rx;
......@@ -824,19 +820,19 @@ static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
if (skb == NULL)
break;
rxq->rx_desc_count++;
rxq->rxd_count++;
rx = rxq->rx_tail;
rxq->rx_tail = (rx + 1) % MWL8K_RX_DESCS;
rx = rxq->tail;
rxq->tail = (rx + 1) % MWL8K_RX_DESCS;
rxq->rx_desc_area[rx].pkt_phys_addr =
rxq->rxd[rx].pkt_phys_addr =
cpu_to_le32(pci_map_single(priv->pdev, skb->data,
MWL8K_RX_MAXSZ, DMA_FROM_DEVICE));
rxq->rx_desc_area[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ);
rxq->rx_skb[rx] = skb;
rxq->rxd[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ);
rxq->skb[rx] = skb;
wmb();
rxq->rx_desc_area[rx].rx_ctrl = 0;
rxq->rxd[rx].rx_ctrl = 0;
refilled++;
}
......@@ -852,24 +848,24 @@ static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
int i;
for (i = 0; i < MWL8K_RX_DESCS; i++) {
if (rxq->rx_skb[i] != NULL) {
if (rxq->skb[i] != NULL) {
unsigned long addr;
addr = le32_to_cpu(rxq->rx_desc_area[i].pkt_phys_addr);
addr = le32_to_cpu(rxq->rxd[i].pkt_phys_addr);
pci_unmap_single(priv->pdev, addr, MWL8K_RX_MAXSZ,
PCI_DMA_FROMDEVICE);
kfree_skb(rxq->rx_skb[i]);
rxq->rx_skb[i] = NULL;
kfree_skb(rxq->skb[i]);
rxq->skb[i] = NULL;
}
}
kfree(rxq->rx_skb);
rxq->rx_skb = NULL;
kfree(rxq->skb);
rxq->skb = NULL;
pci_free_consistent(priv->pdev,
MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc),
rxq->rx_desc_area, rxq->rx_desc_dma);
rxq->rx_desc_area = NULL;
rxq->rxd, rxq->rxd_dma);
rxq->rxd = NULL;
}
......@@ -910,7 +906,7 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
int processed;
processed = 0;
while (rxq->rx_desc_count && limit--) {
while (rxq->rxd_count && limit--) {
struct mwl8k_rx_desc *rx_desc;
struct sk_buff *skb;
struct ieee80211_rx_status status;
......@@ -918,18 +914,18 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
struct ieee80211_hdr *wh;
u16 rate_info;
rx_desc = rxq->rx_desc_area + rxq->rx_head;
rx_desc = rxq->rxd + rxq->head;
if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST))
break;
rmb();
skb = rxq->rx_skb[rxq->rx_head];
skb = rxq->skb[rxq->head];
if (skb == NULL)
break;
rxq->rx_skb[rxq->rx_head] = NULL;
rxq->skb[rxq->head] = NULL;
rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS;
rxq->rx_desc_count--;
rxq->head = (rxq->head + 1) % MWL8K_RX_DESCS;
rxq->rxd_count--;
addr = le32_to_cpu(rx_desc->pkt_phys_addr);
pci_unmap_single(priv->pdev, addr,
......@@ -1000,7 +996,7 @@ struct mwl8k_tx_desc {
__le32 pkt_phys_addr;
__le16 pkt_len;
__u8 dest_MAC_addr[ETH_ALEN];
__le32 next_tx_desc_phys_addr;
__le32 next_txd_phys_addr;
__le32 reserved;
__le16 rate_info;
__u8 peer_id;
......@@ -1016,44 +1012,40 @@ static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
int size;
int i;
memset(&txq->tx_stats, 0, sizeof(struct ieee80211_tx_queue_stats));
txq->tx_stats.limit = MWL8K_TX_DESCS;
txq->tx_head = 0;
txq->tx_tail = 0;
memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats));
txq->stats.limit = MWL8K_TX_DESCS;
txq->head = 0;
txq->tail = 0;
size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
txq->tx_desc_area =
pci_alloc_consistent(priv->pdev, size, &txq->tx_desc_dma);
if (txq->tx_desc_area == NULL) {
txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
if (txq->txd == NULL) {
printk(KERN_ERR "%s: failed to alloc TX descriptors\n",
wiphy_name(hw->wiphy));
return -ENOMEM;
}
memset(txq->tx_desc_area, 0, size);
memset(txq->txd, 0, size);
txq->tx_skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->tx_skb),
GFP_KERNEL);
if (txq->tx_skb == NULL) {
txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL);
if (txq->skb == NULL) {
printk(KERN_ERR "%s: failed to alloc TX skbuff list\n",
wiphy_name(hw->wiphy));
pci_free_consistent(priv->pdev, size,
txq->tx_desc_area, txq->tx_desc_dma);
pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
return -ENOMEM;
}
memset(txq->tx_skb, 0, MWL8K_TX_DESCS * sizeof(*txq->tx_skb));
memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb));
for (i = 0; i < MWL8K_TX_DESCS; i++) {
struct mwl8k_tx_desc *tx_desc;
int nexti;
tx_desc = txq->tx_desc_area + i;
tx_desc = txq->txd + i;
nexti = (i + 1) % MWL8K_TX_DESCS;
tx_desc->status = 0;
tx_desc->next_tx_desc_phys_addr =
cpu_to_le32(txq->tx_desc_dma +
nexti * sizeof(*tx_desc));
tx_desc->next_txd_phys_addr =
cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
}
return 0;
......@@ -1089,11 +1081,11 @@ static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv,
for (count = 0; count < MWL8K_TX_QUEUES; count++) {
txq = priv->txq + count;
txinfo[count].len = txq->tx_stats.len;
txinfo[count].head = txq->tx_head;
txinfo[count].tail = txq->tx_tail;
txinfo[count].len = txq->stats.len;
txinfo[count].head = txq->head;
txinfo[count].tail = txq->tail;
for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
tx_desc = txq->tx_desc_area + desc;
tx_desc = txq->txd + desc;
status = le32_to_cpu(tx_desc->status);
if (status & MWL8K_TXD_STATUS_FW_OWNED)
......@@ -1174,7 +1166,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
struct mwl8k_tx_queue *txq = priv->txq + index;
int wake = 0;
while (txq->tx_stats.len > 0) {
while (txq->stats.len > 0) {
int tx;
struct mwl8k_tx_desc *tx_desc;
unsigned long addr;
......@@ -1183,8 +1175,8 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
struct ieee80211_tx_info *info;
u32 status;
tx = txq->tx_head;
tx_desc = txq->tx_desc_area + tx;
tx = txq->head;
tx_desc = txq->txd + tx;
status = le32_to_cpu(tx_desc->status);
......@@ -1195,15 +1187,15 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
}
txq->tx_head = (tx + 1) % MWL8K_TX_DESCS;
BUG_ON(txq->tx_stats.len == 0);
txq->tx_stats.len--;
txq->head = (tx + 1) % MWL8K_TX_DESCS;
BUG_ON(txq->stats.len == 0);
txq->stats.len--;
priv->pending_tx_pkts--;
addr = le32_to_cpu(tx_desc->pkt_phys_addr);
size = le16_to_cpu(tx_desc->pkt_len);
skb = txq->tx_skb[tx];
txq->tx_skb[tx] = NULL;
skb = txq->skb[tx];
txq->skb[tx] = NULL;
BUG_ON(skb == NULL);
pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
......@@ -1236,13 +1228,13 @@ static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
mwl8k_txq_reclaim(hw, index, 1);
kfree(txq->tx_skb);
txq->tx_skb = NULL;
kfree(txq->skb);
txq->skb = NULL;
pci_free_consistent(priv->pdev,
MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
txq->tx_desc_area, txq->tx_desc_dma);
txq->tx_desc_area = NULL;
txq->txd, txq->txd_dma);
txq->txd = NULL;
}
static int
......@@ -1319,10 +1311,10 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
txq = priv->txq + index;
BUG_ON(txq->tx_skb[txq->tx_tail] != NULL);
txq->tx_skb[txq->tx_tail] = skb;
BUG_ON(txq->skb[txq->tail] != NULL);
txq->skb[txq->tail] = skb;
tx = txq->tx_desc_area + txq->tx_tail;
tx = txq->txd + txq->tail;
tx->data_rate = txdatarate;
tx->tx_priority = index;
tx->qos_control = cpu_to_le16(qos);
......@@ -1333,15 +1325,15 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
wmb();
tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
txq->tx_stats.count++;
txq->tx_stats.len++;
txq->stats.count++;
txq->stats.len++;
priv->pending_tx_pkts++;
txq->tx_tail++;
if (txq->tx_tail == MWL8K_TX_DESCS)
txq->tx_tail = 0;
txq->tail++;
if (txq->tail == MWL8K_TX_DESCS)
txq->tail = 0;
if (txq->tx_head == txq->tx_tail)
if (txq->head == txq->tail)
ieee80211_stop_queue(hw, index);
mwl8k_tx_start(priv);
......@@ -1492,7 +1484,7 @@ struct mwl8k_cmd_get_hw_spec {
__le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
__le32 caps2;
__le32 num_tx_desc_per_queue;
__le32 total_rx_desc;
__le32 total_rxd;
} __attribute__((packed));
static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw)
......@@ -1511,12 +1503,12 @@ static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw)
memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rx_desc_dma);
cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
for (i = 0; i < MWL8K_TX_QUEUES; i++)
cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].tx_desc_dma);
cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
cmd->total_rx_desc = cpu_to_le32(MWL8K_RX_DESCS);
cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
rc = mwl8k_post_cmd(hw, &cmd->header);
......@@ -2888,7 +2880,7 @@ static int mwl8k_get_tx_stats(struct ieee80211_hw *hw,
spin_lock_bh(&priv->tx_lock);
for (index = 0; index < MWL8K_TX_QUEUES; index++) {
txq = priv->txq + index;
memcpy(&stats[index], &txq->tx_stats,
memcpy(&stats[index], &txq->stats,
sizeof(struct ieee80211_tx_queue_stats));
}
spin_unlock_bh(&priv->tx_lock);
......
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