rsi: use dynamic RX control blocks instead of MAX_RX_URB

Currently 2 RX control blocks are allocated by default.
If wifi alone mode is used rx control block 2 is unusable.
So, changes are done accordingly in all places to use
RX control blocks dynamically based on coex mode check.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 0a50cff..64781a3 100644 (file)
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -497,15 +497,15 @@ static struct rsi_host_intf_ops usb_host_intf_ops = {
  */
 static void rsi_deinit_usb_interface(struct rsi_hw *adapter)
 {
-       u8 idx;
-
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
 
        rsi_kill_thread(&dev->rx_thread);
 
-       for (idx = 0; idx < MAX_RX_URBS; idx++) {
-               usb_free_urb(dev->rx_cb[idx].rx_urb);
-               kfree(dev->rx_cb[idx].rx_buffer);
+       usb_free_urb(dev->rx_cb[0].rx_urb);
+       kfree(dev->rx_cb[0].rx_buffer);
+       if (adapter->priv->coex_mode > 1) {
+               usb_free_urb(dev->rx_cb[1].rx_urb);
+               kfree(dev->rx_cb[1].rx_buffer);
        }
 
        kfree(adapter->priv->rx_data_pkt);
@@ -516,9 +516,11 @@ static int rsi_usb_init_rx(struct rsi_hw *adapter)
 {
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
        struct rx_usb_ctrl_block *rx_cb;
-       u8 idx;
+       u8 idx, num_rx_cb;
+
+       num_rx_cb = (adapter->priv->coex_mode > 1 ? 2 : 1);
 
-       for (idx = 0; idx < MAX_RX_URBS; idx++) {
+       for (idx = 0; idx < num_rx_cb; idx++) {
                rx_cb = &dev->rx_cb[idx];
 
                rx_cb->rx_buffer = kzalloc(RSI_USB_BUF_SIZE * 2,
@@ -538,9 +540,11 @@ static int rsi_usb_init_rx(struct rsi_hw *adapter)
        return 0;
 
 err:
-       for (idx = 0; idx < MAX_RX_URBS; idx++) {
-               kfree(dev->rx_cb[idx].rx_buffer);
-               kfree(dev->rx_cb[idx].rx_urb);
+       kfree(dev->rx_cb[0].rx_buffer);
+       usb_free_urb(dev->rx_cb[0].rx_urb);
+       if (adapter->priv->coex_mode > 1) {
+               kfree(dev->rx_cb[1].rx_buffer);
+               usb_free_urb(dev->rx_cb[1].rx_urb);
        }
        return -1;
 }
@@ -557,7 +561,7 @@ static int rsi_init_usb_interface(struct rsi_hw *adapter,
 {
        struct rsi_91x_usbdev *rsi_dev;
        struct rsi_common *common = adapter->priv;
-       int status, i;
+       int status;
 
        rsi_dev = kzalloc(sizeof(*rsi_dev), GFP_KERNEL);
        if (!rsi_dev)
@@ -617,9 +621,11 @@ static int rsi_init_usb_interface(struct rsi_hw *adapter,
        return 0;
 
 fail_thread:
-       for (i = 0; i < MAX_RX_URBS; i++) {
-               kfree(rsi_dev->rx_cb[i].rx_buffer);
-               kfree(rsi_dev->rx_cb[i].rx_urb);
+       kfree(rsi_dev->rx_cb[0].rx_buffer);
+       usb_free_urb(rsi_dev->rx_cb[0].rx_urb);
+       if (common->coex_mode > 1) {
+               kfree(rsi_dev->rx_cb[1].rx_buffer);
+               usb_free_urb(rsi_dev->rx_cb[1].rx_urb);
        }
 fail_tx:
        kfree(common->rx_data_pkt);

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb_ops.c b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
index d0650ea..fc25b1b 100644 (file)
--- a/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb_ops.c
@@ -30,15 +30,16 @@ void rsi_usb_rx_thread(struct rsi_common *common)
        struct rsi_hw *adapter = common->priv;
        struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev;
        struct rx_usb_ctrl_block *rx_cb;
-       int status, idx;
+       int status, idx, num_rx_cb;
 
+       num_rx_cb = (adapter->priv->coex_mode > 1 ? 2 : 1);
        do {
                rsi_wait_event(&dev->rx_thread.event, EVENT_WAIT_FOREVER);
 
                if (atomic_read(&dev->rx_thread.thread_done))
                        goto out;
 
-               for (idx = 0; idx < MAX_RX_URBS; idx++) {
+               for (idx = 0; idx < num_rx_cb; idx++) {
                        rx_cb = &dev->rx_cb[idx];
                        if (!rx_cb->pend)
                                continue;