In order to recycle skbs in the page_pool "hot" cache in
napi_pp_put_page routine, set napi pointer for MMIO devices in
mt76_create_page_pool().
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
Changes since v1:
- do not allocate page_pools for tx queues
---
drivers/net/wireless/mediatek/mt76/mac80211.c | 10 +++++++++-
drivers/net/wireless/mediatek/mt76/mt76.h | 12 ++++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 5cc608d20619..516980cf4caf 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -579,13 +579,18 @@ EXPORT_SYMBOL_GPL(mt76_unregister_phy);
int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q)
{
+ bool is_qrx = mt76_queue_is_rx(dev, q);
struct page_pool_params pp_params = {
.order = 0,
.flags = 0,
.nid = NUMA_NO_NODE,
.dev = dev->dma_dev,
};
- int idx = q - dev->q_rx;
+ int idx = is_qrx ? q - dev->q_rx : -1;
+
+ /* Allocate page_pools just for rx/wed_tx_free queues */
+ if (!is_qrx && !mt76_queue_is_wed_tx_free(q))
+ return 0;
switch (idx) {
case MT_RXQ_MAIN:
@@ -604,6 +609,9 @@ int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q)
pp_params.dma_dir = DMA_FROM_DEVICE;
pp_params.max_len = PAGE_SIZE;
pp_params.offset = 0;
+ /* NAPI is available just for rx queues */
+ if (idx >= 0 && idx < ARRAY_SIZE(dev->napi))
+ pp_params.napi = &dev->napi[idx];
}
q->page_pool = page_pool_create(&pp_params);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index c7286dbeeaae..0da88f153427 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -1613,6 +1613,18 @@ s8 mt76_get_rate_power_limits(struct mt76_phy *phy,
struct mt76_power_limits *dest,
s8 target_power);
+static inline bool mt76_queue_is_rx(struct mt76_dev *dev, struct mt76_queue *q)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++) {
+ if (q == &dev->q_rx[i])
+ return true;
+ }
+
+ return false;
+}
+
static inline bool mt76_queue_is_wed_tx_free(struct mt76_queue *q)
{
return (q->flags & MT_QFLAG_WED) &&
--
2.43.0
