b43: Fix QoS defaults

This fixes the initialization of the default QoS parameters.
This got broken by "wireless: fix warnings from QoS patch".

Reported-by: Lorenzo Nava
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 45 insertions, 11 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c836beceb10d..79c25d6385ce 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3059,6 +3059,15 @@ static void b43_qos_params_upload(struct b43_wldev *dev,
         }
 }
 
+/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
+static const u16 b43_qos_shm_offsets[] = {
+        /* [mac80211-queue-nr] = SHM_OFFSET, */
+        [0] = B43_QOS_VOICE,
+        [1] = B43_QOS_VIDEO,
+        [2] = B43_QOS_BESTEFFORT,
+        [3] = B43_QOS_BACKGROUND,
+};
+
 /* Update the QOS parameters in hardware. */
 static void b43_qos_update(struct b43_wldev *dev)
 {
@@ -3067,14 +3076,8 @@ static void b43_qos_update(struct b43_wldev *dev)
         unsigned long flags;
         unsigned int i;
 
-        /* Mapping of mac80211 queues to b43 SHM offsets. */
-        static const u16 qos_shm_offsets[] = {
-                [0] = B43_QOS_VOICE,
-                [1] = B43_QOS_VIDEO,
-                [2] = B43_QOS_BESTEFFORT,
-                [3] = B43_QOS_BACKGROUND,
-        };
-        BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
+        BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+                     ARRAY_SIZE(wl->qos_params));
 
         b43_mac_suspend(dev);
         spin_lock_irqsave(&wl->irq_lock, flags);
@@ -3083,7 +3086,7 @@ static void b43_qos_update(struct b43_wldev *dev)
                 params = &(wl->qos_params[i]);
                 if (params->need_hw_update) {
                         b43_qos_params_upload(dev, &(params->p),
-                                              qos_shm_offsets[i]);
+                                              b43_qos_shm_offsets[i]);
                         params->need_hw_update = 0;
                 }
         }
@@ -3097,11 +3100,42 @@ static void b43_qos_clear(struct b43_wl *wl)
         struct b43_qos_params *params;
         unsigned int i;
 
+        /* Initialize QoS parameters to sane defaults. */
+
+        BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+                     ARRAY_SIZE(wl->qos_params));
+
         for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
                 params = &(wl->qos_params[i]);
 
-                memset(&(params->p), 0, sizeof(params->p));
-                params->p.aifs = -1;
+                switch (b43_qos_shm_offsets[i]) {
+                case B43_QOS_VOICE:
+                        params->p.txop = 0;
+                        params->p.aifs = 2;
+                        params->p.cw_min = 0x0001;
+                        params->p.cw_max = 0x0001;
+                        break;
+                case B43_QOS_VIDEO:
+                        params->p.txop = 0;
+                        params->p.aifs = 2;
+                        params->p.cw_min = 0x0001;
+                        params->p.cw_max = 0x0001;
+                        break;
+                case B43_QOS_BESTEFFORT:
+                        params->p.txop = 0;
+                        params->p.aifs = 3;
+                        params->p.cw_min = 0x0001;
+                        params->p.cw_max = 0x03FF;
+                        break;
+                case B43_QOS_BACKGROUND:
+                        params->p.txop = 0;
+                        params->p.aifs = 7;
+                        params->p.cw_min = 0x0001;
+                        params->p.cw_max = 0x03FF;
+                        break;
+                default:
+                        B43_WARN_ON(1);
+                }
                 params->need_hw_update = 1;
         }
 }