diff options
Diffstat (limited to 'drivers/staging/wfx/queue.c')
| -rw-r--r-- | drivers/staging/wfx/queue.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c index 6e3159165143..31c37f69c295 100644 --- a/drivers/staging/wfx/queue.c +++ b/drivers/staging/wfx/queue.c @@ -2,7 +2,7 @@ /* * O(1) TX queue with built-in allocator. * - * Copyright (c) 2017-2019, Silicon Laboratories, Inc. + * Copyright (c) 2017-2020, Silicon Laboratories, Inc. * Copyright (c) 2010, ST-Ericsson */ #include <linux/sched.h> @@ -60,11 +60,16 @@ void wfx_tx_lock_flush(struct wfx_dev *wdev) void wfx_tx_queues_init(struct wfx_vif *wvif) { + // The device is in charge to respect the details of the QoS parameters. + // The driver just ensure that it roughtly respect the priorities to + // avoid any shortage. + const int priorities[IEEE80211_NUM_ACS] = { 1, 2, 64, 128 }; int i; for (i = 0; i < IEEE80211_NUM_ACS; ++i) { skb_queue_head_init(&wvif->tx_queue[i].normal); skb_queue_head_init(&wvif->tx_queue[i].cab); + wvif->tx_queue[i].priority = priorities[i]; } } @@ -219,6 +224,11 @@ bool wfx_tx_queues_has_cab(struct wfx_vif *wvif) return false; } +static int wfx_tx_queue_get_weight(struct wfx_queue *queue) +{ + return atomic_read(&queue->pending_frames) * queue->priority; +} + static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev) { struct wfx_queue *queues[IEEE80211_NUM_ACS * ARRAY_SIZE(wdev->vif)]; @@ -234,8 +244,8 @@ static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev) WARN_ON(num_queues >= ARRAY_SIZE(queues)); queues[num_queues] = &wvif->tx_queue[i]; for (j = num_queues; j > 0; j--) - if (atomic_read(&queues[j]->pending_frames) < - atomic_read(&queues[j - 1]->pending_frames)) + if (wfx_tx_queue_get_weight(queues[j]) < + wfx_tx_queue_get_weight(queues[j - 1])) swap(queues[j - 1], queues[j]); num_queues++; } |