--- /dev/null
+/*
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <asm/unaligned.h>
+#include "htc.h"
+
+/* identify firmware images */
+#define FIRMWARE_AR7010_1_1 "htc_7010.fw"
+#define FIRMWARE_AR9271 "htc_9271.fw"
+
+MODULE_FIRMWARE(FIRMWARE_AR7010_1_1);
+MODULE_FIRMWARE(FIRMWARE_AR9271);
+
+static struct usb_device_id ath9k_hif_usb_ids[] = {
+ { USB_DEVICE(0x0cf3, 0x9271) }, /* Atheros */
+ { USB_DEVICE(0x0cf3, 0x1006) }, /* Atheros */
+ { USB_DEVICE(0x0846, 0x9030) }, /* Netgear N150 */
+ { USB_DEVICE(0x07D1, 0x3A10) }, /* Dlink Wireless 150 */
+ { USB_DEVICE(0x13D3, 0x3327) }, /* Azurewave */
+ { USB_DEVICE(0x13D3, 0x3328) }, /* Azurewave */
+ { USB_DEVICE(0x13D3, 0x3346) }, /* IMC Networks */
+ { USB_DEVICE(0x13D3, 0x3348) }, /* Azurewave */
+ { USB_DEVICE(0x13D3, 0x3349) }, /* Azurewave */
+ { USB_DEVICE(0x13D3, 0x3350) }, /* Azurewave */
+ { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */
+ { USB_DEVICE(0x040D, 0x3801) }, /* VIA */
+ { USB_DEVICE(0x0cf3, 0xb003) }, /* Ubiquiti WifiStation Ext */
+ { USB_DEVICE(0x0cf3, 0xb002) }, /* Ubiquiti WifiStation */
+ { USB_DEVICE(0x057c, 0x8403) }, /* AVM FRITZ!WLAN 11N v2 USB */
+ { USB_DEVICE(0x0471, 0x209e) }, /* Philips (or NXP) PTA01 */
+
+ { USB_DEVICE(0x0cf3, 0x7015),
+ .driver_info = AR9287_USB }, /* Atheros */
+ { USB_DEVICE(0x1668, 0x1200),
+ .driver_info = AR9287_USB }, /* Verizon */
+
+ { USB_DEVICE(0x0cf3, 0x7010),
+ .driver_info = AR9280_USB }, /* Atheros */
+ { USB_DEVICE(0x0846, 0x9018),
+ .driver_info = AR9280_USB }, /* Netgear WNDA3200 */
+ { USB_DEVICE(0x083A, 0xA704),
+ .driver_info = AR9280_USB }, /* SMC Networks */
+ { USB_DEVICE(0x0411, 0x017f),
+ .driver_info = AR9280_USB }, /* Sony UWA-BR100 */
+ { USB_DEVICE(0x0411, 0x0197),
+ .driver_info = AR9280_USB }, /* Buffalo WLI-UV-AG300P */
+ { USB_DEVICE(0x04da, 0x3904),
+ .driver_info = AR9280_USB },
+
+ { USB_DEVICE(0x0cf3, 0x20ff),
+ .driver_info = STORAGE_DEVICE },
+
+ { },
+};
+
+MODULE_DEVICE_TABLE(usb, ath9k_hif_usb_ids);
+
+static int __hif_usb_tx(struct hif_device_usb *hif_dev);
+
+static void hif_usb_regout_cb(struct urb *urb)
+{
+ struct cmd_buf *cmd = (struct cmd_buf *)urb->context;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ goto free;
+ default:
+ break;
+ }
+
+ if (cmd) {
+ ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle,
+ cmd->skb, true);
+ kfree(cmd);
+ }
+
+ return;
+free:
+ kfree_skb(cmd->skb);
+ kfree(cmd);
+}
+
+static int hif_usb_send_regout(struct hif_device_usb *hif_dev,
+ struct sk_buff *skb)
+{
+ struct urb *urb;
+ struct cmd_buf *cmd;
+ int ret = 0;
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL)
+ return -ENOMEM;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ cmd->skb = skb;
+ cmd->hif_dev = hif_dev;
+
+ usb_fill_int_urb(urb, hif_dev->udev,
+ usb_sndintpipe(hif_dev->udev, USB_REG_OUT_PIPE),
+ skb->data, skb->len,
+ hif_usb_regout_cb, cmd, 1);
+
+ usb_anchor_urb(urb, &hif_dev->regout_submitted);
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ kfree(cmd);
+ }
+ usb_free_urb(urb);
+
+ return ret;
+}
+
+static void hif_usb_mgmt_cb(struct urb *urb)
+{
+ struct cmd_buf *cmd = (struct cmd_buf *)urb->context;
+ struct hif_device_usb *hif_dev;
+ bool txok = true;
+
+ if (!cmd || !cmd->skb || !cmd->hif_dev)
+ return;
+
+ hif_dev = cmd->hif_dev;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ txok = false;
+
+ /*
+ * If the URBs are being flushed, no need to complete
+ * this packet.
+ */
+ spin_lock(&hif_dev->tx.tx_lock);
+ if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) {
+ spin_unlock(&hif_dev->tx.tx_lock);
+ dev_kfree_skb_any(cmd->skb);
+ kfree(cmd);
+ return;
+ }
+ spin_unlock(&hif_dev->tx.tx_lock);
+
+ break;
+ default:
+ txok = false;
+ break;
+ }
+
+ skb_pull(cmd->skb, 4);
+ ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle,
+ cmd->skb, txok);
+ kfree(cmd);
+}
+
+static int hif_usb_send_mgmt(struct hif_device_usb *hif_dev,
+ struct sk_buff *skb)
+{
+ struct urb *urb;
+ struct cmd_buf *cmd;
+ int ret = 0;
+ __le16 *hdr;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (urb == NULL)
+ return -ENOMEM;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
+ if (cmd == NULL) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ cmd->skb = skb;
+ cmd->hif_dev = hif_dev;
+
+ hdr = (__le16 *) skb_push(skb, 4);
+ *hdr++ = cpu_to_le16(skb->len - 4);
+ *hdr++ = cpu_to_le16(ATH_USB_TX_STREAM_MODE_TAG);
+
+ usb_fill_bulk_urb(urb, hif_dev->udev,
+ usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE),
+ skb->data, skb->len,
+ hif_usb_mgmt_cb, cmd);
+
+ usb_anchor_urb(urb, &hif_dev->mgmt_submitted);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ kfree(cmd);
+ }
+ usb_free_urb(urb);
+
+ return ret;
+}
+
+static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev,
+ struct sk_buff_head *list)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(list)) != NULL) {
+ dev_kfree_skb_any(skb);
+ }
+}
+
+static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev,
+ struct sk_buff_head *queue,
+ bool txok)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(queue)) != NULL) {
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+ int ln = skb->len;
+#endif
+ ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
+ skb, txok);
+ if (txok) {
+ TX_STAT_INC(skb_success);
+ TX_STAT_ADD(skb_success_bytes, ln);
+ }
+ else
+ TX_STAT_INC(skb_failed);
+ }
+}
+
+static void hif_usb_tx_cb(struct urb *urb)
+{
+ struct tx_buf *tx_buf = (struct tx_buf *) urb->context;
+ struct hif_device_usb *hif_dev;
+ bool txok = true;
+
+ if (!tx_buf || !tx_buf->hif_dev)
+ return;
+
+ hif_dev = tx_buf->hif_dev;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ txok = false;
+
+ /*
+ * If the URBs are being flushed, no need to add this
+ * URB to the free list.
+ */
+ spin_lock(&hif_dev->tx.tx_lock);
+ if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) {
+ spin_unlock(&hif_dev->tx.tx_lock);
+ ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
+ return;
+ }
+ spin_unlock(&hif_dev->tx.tx_lock);
+
+ break;
+ default:
+ txok = false;
+ break;
+ }
+
+ ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, txok);
+
+ /* Re-initialize the SKB queue */
+ tx_buf->len = tx_buf->offset = 0;
+ __skb_queue_head_init(&tx_buf->skb_queue);
+
+ /* Add this TX buffer to the free list */
+ spin_lock(&hif_dev->tx.tx_lock);
+ list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
+ hif_dev->tx.tx_buf_cnt++;
+ if (!(hif_dev->tx.flags & HIF_USB_TX_STOP))
+ __hif_usb_tx(hif_dev); /* Check for pending SKBs */
+ TX_STAT_INC(buf_completed);
+ spin_unlock(&hif_dev->tx.tx_lock);
+}
+
+/* TX lock has to be taken */
+static int __hif_usb_tx(struct hif_device_usb *hif_dev)
+{
+ struct tx_buf *tx_buf = NULL;
+ struct sk_buff *nskb = NULL;
+ int ret = 0, i;
+ u16 tx_skb_cnt = 0;
+ u8 *buf;
+ __le16 *hdr;
+
+ if (hif_dev->tx.tx_skb_cnt == 0)
+ return 0;
+
+ /* Check if a free TX buffer is available */
+ if (list_empty(&hif_dev->tx.tx_buf))
+ return 0;
+
+ tx_buf = list_first_entry(&hif_dev->tx.tx_buf, struct tx_buf, list);
+ list_move_tail(&tx_buf->list, &hif_dev->tx.tx_pending);
+ hif_dev->tx.tx_buf_cnt--;
+
+ tx_skb_cnt = min_t(u16, hif_dev->tx.tx_skb_cnt, MAX_TX_AGGR_NUM);
+
+ for (i = 0; i < tx_skb_cnt; i++) {
+ nskb = __skb_dequeue(&hif_dev->tx.tx_skb_queue);
+
+ /* Should never be NULL */
+ BUG_ON(!nskb);
+
+ hif_dev->tx.tx_skb_cnt--;
+
+ buf = tx_buf->buf;
+ buf += tx_buf->offset;
+ hdr = (__le16 *)buf;
+ *hdr++ = cpu_to_le16(nskb->len);
+ *hdr++ = cpu_to_le16(ATH_USB_TX_STREAM_MODE_TAG);
+ buf += 4;
+ memcpy(buf, nskb->data, nskb->len);
+ tx_buf->len = nskb->len + 4;
+
+ if (i < (tx_skb_cnt - 1))
+ tx_buf->offset += (((tx_buf->len - 1) / 4) + 1) * 4;
+
+ if (i == (tx_skb_cnt - 1))
+ tx_buf->len += tx_buf->offset;
+
+ __skb_queue_tail(&tx_buf->skb_queue, nskb);
+ TX_STAT_INC(skb_queued);
+ }
+
+ usb_fill_bulk_urb(tx_buf->urb, hif_dev->udev,
+ usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE),
+ tx_buf->buf, tx_buf->len,
+ hif_usb_tx_cb, tx_buf);
+
+ ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC);
+ if (ret) {
+ tx_buf->len = tx_buf->offset = 0;
+ ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, false);
+ __skb_queue_head_init(&tx_buf->skb_queue);
+ list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
+ hif_dev->tx.tx_buf_cnt++;
+ }
+
+ if (!ret)
+ TX_STAT_INC(buf_queued);
+
+ return ret;
+}
+
+static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb)
+{
+ struct ath9k_htc_tx_ctl *tx_ctl;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+
+ if (hif_dev->tx.flags & HIF_USB_TX_STOP) {
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+ return -ENODEV;
+ }
+
+ /* Check if the max queue count has been reached */
+ if (hif_dev->tx.tx_skb_cnt > MAX_TX_BUF_NUM) {
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+ return -ENOMEM;
+ }
+
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+
+ tx_ctl = HTC_SKB_CB(skb);
+
+ /* Mgmt/Beacon frames don't use the TX buffer pool */
+ if ((tx_ctl->type == ATH9K_HTC_MGMT) ||
+ (tx_ctl->type == ATH9K_HTC_BEACON)) {
+ ret = hif_usb_send_mgmt(hif_dev, skb);
+ }
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+
+ if ((tx_ctl->type == ATH9K_HTC_NORMAL) ||
+ (tx_ctl->type == ATH9K_HTC_AMPDU)) {
+ __skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb);
+ hif_dev->tx.tx_skb_cnt++;
+ }
+
+ /* Check if AMPDUs have to be sent immediately */
+ if ((hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) &&
+ (hif_dev->tx.tx_skb_cnt < 2)) {
+ __hif_usb_tx(hif_dev);
+ }
+
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+
+ return ret;
+}
+
+static void hif_usb_start(void *hif_handle)
+{
+ struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
+ unsigned long flags;
+
+ hif_dev->flags |= HIF_USB_START;
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+ hif_dev->tx.flags &= ~HIF_USB_TX_STOP;
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+}
+
+static void hif_usb_stop(void *hif_handle)
+{
+ struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
+ struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+ ath9k_skb_queue_complete(hif_dev, &hif_dev->tx.tx_skb_queue, false);
+ hif_dev->tx.tx_skb_cnt = 0;
+ hif_dev->tx.flags |= HIF_USB_TX_STOP;
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+
+ /* The pending URBs have to be canceled. */
+ list_for_each_entry_safe(tx_buf, tx_buf_tmp,
+ &hif_dev->tx.tx_pending, list) {
+ usb_kill_urb(tx_buf->urb);
+ }
+
+ usb_kill_anchored_urbs(&hif_dev->mgmt_submitted);
+}
+
+static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb)
+{
+ struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
+ int ret = 0;
+
+ switch (pipe_id) {
+ case USB_WLAN_TX_PIPE:
+ ret = hif_usb_send_tx(hif_dev, skb);
+ break;
+ case USB_REG_OUT_PIPE:
+ ret = hif_usb_send_regout(hif_dev, skb);
+ break;
+ default:
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: Invalid TX pipe: %d\n", pipe_id);
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static inline bool check_index(struct sk_buff *skb, u8 idx)
+{
+ struct ath9k_htc_tx_ctl *tx_ctl;
+
+ tx_ctl = HTC_SKB_CB(skb);
+
+ if ((tx_ctl->type == ATH9K_HTC_AMPDU) &&
+ (tx_ctl->sta_idx == idx))
+ return true;
+
+ return false;
+}
+
+static void hif_usb_sta_drain(void *hif_handle, u8 idx)
+{
+ struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
+ struct sk_buff *skb, *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+
+ skb_queue_walk_safe(&hif_dev->tx.tx_skb_queue, skb, tmp) {
+ if (check_index(skb, idx)) {
+ __skb_unlink(skb, &hif_dev->tx.tx_skb_queue);
+ ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
+ skb, false);
+ hif_dev->tx.tx_skb_cnt--;
+ TX_STAT_INC(skb_failed);
+ }
+ }
+
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+}
+
+static struct ath9k_htc_hif hif_usb = {
+ .transport = ATH9K_HIF_USB,
+ .name = "ath9k_hif_usb",
+
+ .control_ul_pipe = USB_REG_OUT_PIPE,
+ .control_dl_pipe = USB_REG_IN_PIPE,
+
+ .start = hif_usb_start,
+ .stop = hif_usb_stop,
+ .sta_drain = hif_usb_sta_drain,
+ .send = hif_usb_send,
+};
+
+static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
+ struct sk_buff *skb)
+{
+ struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER];
+ int index = 0, i = 0, len = skb->len;
+ int rx_remain_len, rx_pkt_len;
+ u16 pool_index = 0;
+ u8 *ptr;
+
+ spin_lock(&hif_dev->rx_lock);
+
+ rx_remain_len = hif_dev->rx_remain_len;
+ rx_pkt_len = hif_dev->rx_transfer_len;
+
+ if (rx_remain_len != 0) {
+ struct sk_buff *remain_skb = hif_dev->remain_skb;
+
+ if (remain_skb) {
+ ptr = (u8 *) remain_skb->data;
+
+ index = rx_remain_len;
+ rx_remain_len -= hif_dev->rx_pad_len;
+ ptr += rx_pkt_len;
+
+ memcpy(ptr, skb->data, rx_remain_len);
+
+ rx_pkt_len += rx_remain_len;
+ hif_dev->rx_remain_len = 0;
+ skb_put(remain_skb, rx_pkt_len);
+
+ skb_pool[pool_index++] = remain_skb;
+
+ } else {
+ index = rx_remain_len;
+ }
+ }
+
+ spin_unlock(&hif_dev->rx_lock);
+
+ while (index < len) {
+ u16 pkt_len;
+ u16 pkt_tag;
+ u16 pad_len;
+ int chk_idx;
+
+ ptr = (u8 *) skb->data;
+
+ pkt_len = get_unaligned_le16(ptr + index);
+ pkt_tag = get_unaligned_le16(ptr + index + 2);
+
+ if (pkt_tag != ATH_USB_RX_STREAM_MODE_TAG) {
+ RX_STAT_INC(skb_dropped);
+ return;
+ }
+
+ pad_len = 4 - (pkt_len & 0x3);
+ if (pad_len == 4)
+ pad_len = 0;
+
+ chk_idx = index;
+ index = index + 4 + pkt_len + pad_len;
+
+ if (index > MAX_RX_BUF_SIZE) {
+ spin_lock(&hif_dev->rx_lock);
+ hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE;
+ hif_dev->rx_transfer_len =
+ MAX_RX_BUF_SIZE - chk_idx - 4;
+ hif_dev->rx_pad_len = pad_len;
+
+ nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
+ if (!nskb) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: RX memory allocation error\n");
+ spin_unlock(&hif_dev->rx_lock);
+ goto err;
+ }
+ skb_reserve(nskb, 32);
+ RX_STAT_INC(skb_allocated);
+
+ memcpy(nskb->data, &(skb->data[chk_idx+4]),
+ hif_dev->rx_transfer_len);
+
+ /* Record the buffer pointer */
+ hif_dev->remain_skb = nskb;
+ spin_unlock(&hif_dev->rx_lock);
+ } else {
+ nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
+ if (!nskb) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: RX memory allocation error\n");
+ goto err;
+ }
+ skb_reserve(nskb, 32);
+ RX_STAT_INC(skb_allocated);
+
+ memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len);
+ skb_put(nskb, pkt_len);
+ skb_pool[pool_index++] = nskb;
+ }
+ }
+
+err:
+ for (i = 0; i < pool_index; i++) {
+ RX_STAT_ADD(skb_completed_bytes, skb_pool[i]->len);
+ ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i],
+ skb_pool[i]->len, USB_WLAN_RX_PIPE);
+ RX_STAT_INC(skb_completed);
+ }
+}
+
+static void ath9k_hif_usb_rx_cb(struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *) urb->context;
+ struct hif_device_usb *hif_dev =
+ usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+ int ret;
+
+ if (!skb)
+ return;
+
+ if (!hif_dev)
+ goto free;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ goto free;
+ default:
+ goto resubmit;
+ }
+
+ if (likely(urb->actual_length != 0)) {
+ skb_put(skb, urb->actual_length);
+ ath9k_hif_usb_rx_stream(hif_dev, skb);
+ }
+
+resubmit:
+ skb_reset_tail_pointer(skb);
+ skb_trim(skb, 0);
+
+ usb_anchor_urb(urb, &hif_dev->rx_submitted);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ goto free;
+ }
+
+ return;
+free:
+ kfree_skb(skb);
+}
+
+static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *) urb->context;
+ struct sk_buff *nskb;
+ struct hif_device_usb *hif_dev =
+ usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+ int ret;
+
+ if (!skb)
+ return;
+
+ if (!hif_dev)
+ goto free;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ goto free;
+ default:
+ skb_reset_tail_pointer(skb);
+ skb_trim(skb, 0);
+
+ goto resubmit;
+ }
+
+ if (likely(urb->actual_length != 0)) {
+ skb_put(skb, urb->actual_length);
+
+ /* Process the command first */
+ ath9k_htc_rx_msg(hif_dev->htc_handle, skb,
+ skb->len, USB_REG_IN_PIPE);
+
+
+ nskb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC);
+ if (!nskb) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: REG_IN memory allocation failure\n");
+ urb->context = NULL;
+ return;
+ }
+
+ usb_fill_int_urb(urb, hif_dev->udev,
+ usb_rcvintpipe(hif_dev->udev,
+ USB_REG_IN_PIPE),
+ nskb->data, MAX_REG_IN_BUF_SIZE,
+ ath9k_hif_usb_reg_in_cb, nskb, 1);
+ }
+
+resubmit:
+ usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ goto free;
+ }
+
+ return;
+free:
+ kfree_skb(skb);
+ urb->context = NULL;
+}
+
+static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev)
+{
+ struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL;
+ unsigned long flags;
+
+ list_for_each_entry_safe(tx_buf, tx_buf_tmp,
+ &hif_dev->tx.tx_buf, list) {
+ usb_kill_urb(tx_buf->urb);
+ list_del(&tx_buf->list);
+ usb_free_urb(tx_buf->urb);
+ kfree(tx_buf->buf);
+ kfree(tx_buf);
+ }
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+ hif_dev->tx.flags |= HIF_USB_TX_FLUSH;
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+
+ list_for_each_entry_safe(tx_buf, tx_buf_tmp,
+ &hif_dev->tx.tx_pending, list) {
+ usb_kill_urb(tx_buf->urb);
+ list_del(&tx_buf->list);
+ usb_free_urb(tx_buf->urb);
+ kfree(tx_buf->buf);
+ kfree(tx_buf);
+ }
+
+ usb_kill_anchored_urbs(&hif_dev->mgmt_submitted);
+}
+
+static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev)
+{
+ struct tx_buf *tx_buf;
+ int i;
+
+ INIT_LIST_HEAD(&hif_dev->tx.tx_buf);
+ INIT_LIST_HEAD(&hif_dev->tx.tx_pending);
+ spin_lock_init(&hif_dev->tx.tx_lock);
+ __skb_queue_head_init(&hif_dev->tx.tx_skb_queue);
+ init_usb_anchor(&hif_dev->mgmt_submitted);
+
+ for (i = 0; i < MAX_TX_URB_NUM; i++) {
+ tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL);
+ if (!tx_buf)
+ goto err;
+
+ tx_buf->buf = kzalloc(MAX_TX_BUF_SIZE, GFP_KERNEL);
+ if (!tx_buf->buf)
+ goto err;
+
+ tx_buf->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tx_buf->urb)
+ goto err;
+
+ tx_buf->hif_dev = hif_dev;
+ __skb_queue_head_init(&tx_buf->skb_queue);
+
+ list_add_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
+ }
+
+ hif_dev->tx.tx_buf_cnt = MAX_TX_URB_NUM;
+
+ return 0;
+err:
+ if (tx_buf) {
+ kfree(tx_buf->buf);
+ kfree(tx_buf);
+ }
+ ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
+ return -ENOMEM;
+}
+
+static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb *hif_dev)
+{
+ usb_kill_anchored_urbs(&hif_dev->rx_submitted);
+}
+
+static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb *hif_dev)
+{
+ struct urb *urb = NULL;
+ struct sk_buff *skb = NULL;
+ int i, ret;
+
+ init_usb_anchor(&hif_dev->rx_submitted);
+ spin_lock_init(&hif_dev->rx_lock);
+
+ for (i = 0; i < MAX_RX_URB_NUM; i++) {
+
+ /* Allocate URB */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL) {
+ ret = -ENOMEM;
+ goto err_urb;
+ }
+
+ /* Allocate buffer */
+ skb = alloc_skb(MAX_RX_BUF_SIZE, GFP_KERNEL);
+ if (!skb) {
+ ret = -ENOMEM;
+ goto err_skb;
+ }
+
+ usb_fill_bulk_urb(urb, hif_dev->udev,
+ usb_rcvbulkpipe(hif_dev->udev,
+ USB_WLAN_RX_PIPE),
+ skb->data, MAX_RX_BUF_SIZE,
+ ath9k_hif_usb_rx_cb, skb);
+
+ /* Anchor URB */
+ usb_anchor_urb(urb, &hif_dev->rx_submitted);
+
+ /* Submit URB */
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ goto err_submit;
+ }
+
+ /*
+ * Drop reference count.
+ * This ensures that the URB is freed when killing them.
+ */
+ usb_free_urb(urb);
+ }
+
+ return 0;
+
+err_submit:
+ kfree_skb(skb);
+err_skb:
+ usb_free_urb(urb);
+err_urb:
+ ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
+ return ret;
+}
+
+static void ath9k_hif_usb_dealloc_reg_in_urbs(struct hif_device_usb *hif_dev)
+{
+ usb_kill_anchored_urbs(&hif_dev->reg_in_submitted);
+}
+
+static int ath9k_hif_usb_alloc_reg_in_urbs(struct hif_device_usb *hif_dev)
+{
+ struct urb *urb = NULL;
+ struct sk_buff *skb = NULL;
+ int i, ret;
+
+ init_usb_anchor(&hif_dev->reg_in_submitted);
+
+ for (i = 0; i < MAX_REG_IN_URB_NUM; i++) {
+
+ /* Allocate URB */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL) {
+ ret = -ENOMEM;
+ goto err_urb;
+ }
+
+ /* Allocate buffer */
+ skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
+ if (!skb) {
+ ret = -ENOMEM;
+ goto err_skb;
+ }
+
+ usb_fill_int_urb(urb, hif_dev->udev,
+ usb_rcvintpipe(hif_dev->udev,
+ USB_REG_IN_PIPE),
+ skb->data, MAX_REG_IN_BUF_SIZE,
+ ath9k_hif_usb_reg_in_cb, skb, 1);
+
+ /* Anchor URB */
+ usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
+
+ /* Submit URB */
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ goto err_submit;
+ }
+
+ /*
+ * Drop reference count.
+ * This ensures that the URB is freed when killing them.
+ */
+ usb_free_urb(urb);
+ }
+
+ return 0;
+
+err_submit:
+ kfree_skb(skb);
+err_skb:
+ usb_free_urb(urb);
+err_urb:
+ ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev);
+ return ret;
+}
+
+static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev)
+{
+ /* Register Write */
+ init_usb_anchor(&hif_dev->regout_submitted);
+
+ /* TX */
+ if (ath9k_hif_usb_alloc_tx_urbs(hif_dev) < 0)
+ goto err;
+
+ /* RX */
+ if (ath9k_hif_usb_alloc_rx_urbs(hif_dev) < 0)
+ goto err_rx;
+
+ /* Register Read */
+ if (ath9k_hif_usb_alloc_reg_in_urbs(hif_dev) < 0)
+ goto err_reg;
+
+ return 0;
+err_reg:
+ ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
+err_rx:
+ ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
+err:
+ return -ENOMEM;
+}
+
+static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev)
+{
+ usb_kill_anchored_urbs(&hif_dev->regout_submitted);
+ ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev);
+ ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
+ ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
+}
+
+static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
+{
+ int transfer, err;
+ const void *data = hif_dev->fw_data;
+ size_t len = hif_dev->fw_size;
+ u32 addr = AR9271_FIRMWARE;
+ u8 *buf = kzalloc(4096, GFP_KERNEL);
+ u32 firm_offset;
+
+ if (!buf)
+ return -ENOMEM;
+
+ while (len) {
+ transfer = min_t(size_t, len, 4096);
+ memcpy(buf, data, transfer);
+
+ err = usb_control_msg(hif_dev->udev,
+ usb_sndctrlpipe(hif_dev->udev, 0),
+ FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT,
+ addr >> 8, 0, buf, transfer, HZ);
+ if (err < 0) {
+ kfree(buf);
+ return err;
+ }
+
+ len -= transfer;
+ data += transfer;
+ addr += transfer;
+ }
+ kfree(buf);
+
+ if (IS_AR7010_DEVICE(hif_dev->usb_device_id->driver_info))
+ firm_offset = AR7010_FIRMWARE_TEXT;
+ else
+ firm_offset = AR9271_FIRMWARE_TEXT;
+
+ /*
+ * Issue FW download complete command to firmware.
+ */
+ err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0),
+ FIRMWARE_DOWNLOAD_COMP,
+ 0x40 | USB_DIR_OUT,
+ firm_offset >> 8, 0, NULL, 0, HZ);
+ if (err)
+ return -EIO;
+
+ dev_info(&hif_dev->udev->dev, "ath9k_htc: Transferred FW: %s, size: %ld\n",
+ hif_dev->fw_name, (unsigned long) hif_dev->fw_size);
+
+ return 0;
+}
+
+static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev)
+{
+ int ret;
+
+ ret = ath9k_hif_usb_download_fw(hif_dev);
+ if (ret) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: Firmware - %s download failed\n",
+ hif_dev->fw_name);
+ return ret;
+ }
+
+ /* Alloc URBs */
+ ret = ath9k_hif_usb_alloc_urbs(hif_dev);
+ if (ret) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: Unable to allocate URBs\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void ath9k_hif_usb_dev_deinit(struct hif_device_usb *hif_dev)
+{
+ ath9k_hif_usb_dealloc_urbs(hif_dev);
+}
+
+/*
+ * If initialization fails or the FW cannot be retrieved,
+ * detach the device.
+ */
+static void ath9k_hif_usb_firmware_fail(struct hif_device_usb *hif_dev)
+{
+ struct device *dev = &hif_dev->udev->dev;
+ struct device *parent = dev->parent;
+
+ complete_all(&hif_dev->fw_done);
+
+ if (parent)
+ device_lock(parent);
+
+ device_release_driver(dev);
+
+ if (parent)
+ device_unlock(parent);
+}
+
+static void ath9k_hif_usb_firmware_cb(const struct firmware *fw, void *context)
+{
+ struct hif_device_usb *hif_dev = context;
+ int ret;
+
+ if (!fw) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: Failed to get firmware %s\n",
+ hif_dev->fw_name);
+ goto err_fw;
+ }
+
+ hif_dev->htc_handle = ath9k_htc_hw_alloc(hif_dev, &hif_usb,
+ &hif_dev->udev->dev);
+ if (hif_dev->htc_handle == NULL)
+ goto err_dev_alloc;
+
+ hif_dev->fw_data = fw->data;
+ hif_dev->fw_size = fw->size;
+
+ /* Proceed with initialization */
+
+ ret = ath9k_hif_usb_dev_init(hif_dev);
+ if (ret)
+ goto err_dev_init;
+
+ ret = ath9k_htc_hw_init(hif_dev->htc_handle,
+ &hif_dev->interface->dev,
+ hif_dev->usb_device_id->idProduct,
+ hif_dev->udev->product,
+ hif_dev->usb_device_id->driver_info);
+ if (ret) {
+ ret = -EINVAL;
+ goto err_htc_hw_init;
+ }
+
+ release_firmware(fw);
+ hif_dev->flags |= HIF_USB_READY;
+ complete_all(&hif_dev->fw_done);
+
+ return;
+
+err_htc_hw_init:
+ ath9k_hif_usb_dev_deinit(hif_dev);
+err_dev_init:
+ ath9k_htc_hw_free(hif_dev->htc_handle);
+err_dev_alloc:
+ release_firmware(fw);
+err_fw:
+ ath9k_hif_usb_firmware_fail(hif_dev);
+}
+
+/*
+ * An exact copy of the function from zd1211rw.
+ */
+static int send_eject_command(struct usb_interface *interface)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_host_interface *iface_desc = &interface->altsetting[0];
+ struct usb_endpoint_descriptor *endpoint;
+ unsigned char *cmd;
+ u8 bulk_out_ep;
+ int r;
+
+ /* Find bulk out endpoint */
+ for (r = 1; r >= 0; r--) {
+ endpoint = &iface_desc->endpoint[r].desc;
+ if (usb_endpoint_dir_out(endpoint) &&
+ usb_endpoint_xfer_bulk(endpoint)) {
+ bulk_out_ep = endpoint->bEndpointAddress;
+ break;
+ }
+ }
+ if (r == -1) {
+ dev_err(&udev->dev,
+ "ath9k_htc: Could not find bulk out endpoint\n");
+ return -ENODEV;
+ }
+
+ cmd = kzalloc(31, GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENODEV;
+
+ /* USB bulk command block */
+ cmd[0] = 0x55; /* bulk command signature */
+ cmd[1] = 0x53; /* bulk command signature */
+ cmd[2] = 0x42; /* bulk command signature */
+ cmd[3] = 0x43; /* bulk command signature */
+ cmd[14] = 6; /* command length */
+
+ cmd[15] = 0x1b; /* SCSI command: START STOP UNIT */
+ cmd[19] = 0x2; /* eject disc */
+
+ dev_info(&udev->dev, "Ejecting storage device...\n");
+ r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, bulk_out_ep),
+ cmd, 31, NULL, 2000);
+ kfree(cmd);
+ if (r)
+ return r;
+
+ /* At this point, the device disconnects and reconnects with the real
+ * ID numbers. */
+
+ usb_set_intfdata(interface, NULL);
+ return 0;
+}
+
+static int ath9k_hif_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct hif_device_usb *hif_dev;
+ int ret = 0;
+
+ if (id->driver_info == STORAGE_DEVICE)
+ return send_eject_command(interface);
+
+ hif_dev = kzalloc(sizeof(struct hif_device_usb), GFP_KERNEL);
+ if (!hif_dev) {
+ ret = -ENOMEM;
+ goto err_alloc;
+ }
+
+ usb_get_dev(udev);
+
+ hif_dev->udev = udev;
+ hif_dev->interface = interface;
+ hif_dev->usb_device_id = id;
+#ifdef CONFIG_PM
+ udev->reset_resume = 1;
+#endif
+ usb_set_intfdata(interface, hif_dev);
+
+ init_completion(&hif_dev->fw_done);
+
+ /* Find out which firmware to load */
+
+ if (IS_AR7010_DEVICE(id->driver_info))
+ hif_dev->fw_name = FIRMWARE_AR7010_1_1;
+ else
+ hif_dev->fw_name = FIRMWARE_AR9271;
+
+ ret = request_firmware_nowait(THIS_MODULE, true, hif_dev->fw_name,
+ &hif_dev->udev->dev, GFP_KERNEL,
+ hif_dev, ath9k_hif_usb_firmware_cb);
+ if (ret) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: Async request for firmware %s failed\n",
+ hif_dev->fw_name);
+ goto err_fw_req;
+ }
+
+ dev_info(&hif_dev->udev->dev, "ath9k_htc: Firmware %s requested\n",
+ hif_dev->fw_name);
+
+ return 0;
+
+err_fw_req:
+ usb_set_intfdata(interface, NULL);
+ kfree(hif_dev);
+ usb_put_dev(udev);
+err_alloc:
+ return ret;
+}
+
+static void ath9k_hif_usb_reboot(struct usb_device *udev)
+{
+ u32 reboot_cmd = 0xffffffff;
+ void *buf;
+ int ret;
+
+ buf = kmemdup(&reboot_cmd, 4, GFP_KERNEL);
+ if (!buf)
+ return;
+
+ ret = usb_interrupt_msg(udev, usb_sndintpipe(udev, USB_REG_OUT_PIPE),
+ buf, 4, NULL, HZ);
+ if (ret)
+ dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n");
+
+ kfree(buf);
+}
+
+static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
+ bool unplugged = (udev->state == USB_STATE_NOTATTACHED) ? true : false;
+
+ if (!hif_dev)
+ return;
+
+ wait_for_completion(&hif_dev->fw_done);
+
+ if (hif_dev->flags & HIF_USB_READY) {
+ ath9k_htc_hw_deinit(hif_dev->htc_handle, unplugged);
+ ath9k_htc_hw_free(hif_dev->htc_handle);
+ ath9k_hif_usb_dev_deinit(hif_dev);
+ }
+
+ usb_set_intfdata(interface, NULL);
+
+ /* If firmware was loaded we should drop it
+ * go back to first stage bootloader. */
+ if (!unplugged && (hif_dev->flags & HIF_USB_READY))
+ ath9k_hif_usb_reboot(udev);
+
+ kfree(hif_dev);
+ dev_info(&udev->dev, "ath9k_htc: USB layer deinitialized\n");
+ usb_put_dev(udev);
+}
+
+#ifdef CONFIG_PM
+static int ath9k_hif_usb_suspend(struct usb_interface *interface,
+ pm_message_t message)
+{
+ struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
+
+ /*
+ * The device has to be set to FULLSLEEP mode in case no
+ * interface is up.
+ */
+ if (!(hif_dev->flags & HIF_USB_START))
+ ath9k_htc_suspend(hif_dev->htc_handle);
+
+ wait_for_completion(&hif_dev->fw_done);
+
+ if (hif_dev->flags & HIF_USB_READY)
+ ath9k_hif_usb_dealloc_urbs(hif_dev);
+
+ return 0;
+}
+
+static int ath9k_hif_usb_resume(struct usb_interface *interface)
+{
+ struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
+ struct htc_target *htc_handle = hif_dev->htc_handle;
+ int ret;
+ const struct firmware *fw;
+
+ ret = ath9k_hif_usb_alloc_urbs(hif_dev);
+ if (ret)
+ return ret;
+
+ if (hif_dev->flags & HIF_USB_READY) {
+ /* request cached firmware during suspend/resume cycle */
+ ret = request_firmware(&fw, hif_dev->fw_name,
+ &hif_dev->udev->dev);
+ if (ret)
+ goto fail_resume;
+
+ hif_dev->fw_data = fw->data;
+ hif_dev->fw_size = fw->size;
+ ret = ath9k_hif_usb_download_fw(hif_dev);
+ release_firmware(fw);
+ if (ret)
+ goto fail_resume;
+ } else {
+ ath9k_hif_usb_dealloc_urbs(hif_dev);
+ return -EIO;
+ }
+
+ mdelay(100);
+
+ ret = ath9k_htc_resume(htc_handle);
+
+ if (ret)
+ goto fail_resume;
+
+ return 0;
+
+fail_resume:
+ ath9k_hif_usb_dealloc_urbs(hif_dev);
+
+ return ret;
+}
+#endif
+
+static struct usb_driver ath9k_hif_usb_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = ath9k_hif_usb_probe,
+ .disconnect = ath9k_hif_usb_disconnect,
+#ifdef CONFIG_PM
+ .suspend = ath9k_hif_usb_suspend,
+ .resume = ath9k_hif_usb_resume,
+ .reset_resume = ath9k_hif_usb_resume,
+#endif
+ .id_table = ath9k_hif_usb_ids,
+ .soft_unbind = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+int ath9k_hif_usb_init(void)
+{
+ return usb_register(&ath9k_hif_usb_driver);
+}
+
+void ath9k_hif_usb_exit(void)
+{
+ usb_deregister(&ath9k_hif_usb_driver);
+}
Code Review / kvmfornfv.git / blobdiff