[PATCH] mt7601u: use ieee80211_rx_list to pass frames to the network stack as a batch
flat view
STALE2081d
LANDED
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2021-01-13 23:52:55
Subsystem:
mediatek mt7601u wireless lan driver, the rest · Maintainers:
Jakub Kicinski, Linus Torvalds
Landed in mainline as 2a9269b1cdc3 on 2021-01-25.
Similar to mt76 driver, rely on ieee80211_rx_list in order to improve icache footprint Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/wireless/mediatek/mt7601u/dma.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt7601u/dma.c b/drivers/net/wireless/mediatek/mt7601u/dma.c
index 5f99054f535b..e0f96c64aab3 100644
--- a/drivers/net/wireless/mediatek/mt7601u/dma.c
+++ b/drivers/net/wireless/mediatek/mt7601u/dma.c@@ -74,7 +74,8 @@ mt7601u_rx_skb_from_seg(struct mt7601u_dev *dev, struct mt7601u_rxwi *rxwi, } static void mt7601u_rx_process_seg(struct mt7601u_dev *dev, u8 *data, - u32 seg_len, struct page *p) + u32 seg_len, struct page *p, + struct list_head *list) { struct sk_buff *skb; struct mt7601u_rxwi *rxwi;
@@ -104,9 +105,13 @@ static void mt7601u_rx_process_seg(struct mt7601u_dev *dev, u8 *data, if (!skb) return; - spin_lock(&dev->mac_lock); - ieee80211_rx(dev->hw, skb); - spin_unlock(&dev->mac_lock); + local_bh_disable(); + rcu_read_lock(); + + ieee80211_rx_list(dev->hw, NULL, skb, list); + + rcu_read_unlock(); + local_bh_enable(); } static u16 mt7601u_rx_next_seg_len(u8 *data, u32 data_len)
@@ -130,6 +135,7 @@ mt7601u_rx_process_entry(struct mt7601u_dev *dev, struct mt7601u_dma_buf_rx *e) u32 seg_len, data_len = e->urb->actual_length; u8 *data = page_address(e->p); struct page *new_p = NULL; + LIST_HEAD(list); int cnt = 0; if (!test_bit(MT7601U_STATE_INITIALIZED, &dev->state))
@@ -140,7 +146,8 @@ mt7601u_rx_process_entry(struct mt7601u_dev *dev, struct mt7601u_dma_buf_rx *e) new_p = dev_alloc_pages(MT_RX_ORDER); while ((seg_len = mt7601u_rx_next_seg_len(data, data_len))) { - mt7601u_rx_process_seg(dev, data, seg_len, new_p ? e->p : NULL); + mt7601u_rx_process_seg(dev, data, seg_len, + new_p ? e->p : NULL, &list); data_len -= seg_len; data += seg_len;
@@ -150,6 +157,8 @@ mt7601u_rx_process_entry(struct mt7601u_dev *dev, struct mt7601u_dma_buf_rx *e) if (cnt > 1) trace_mt_rx_dma_aggr(dev, cnt, !!new_p); + netif_receive_skb_list(&list); + if (new_p) { /* we have one extra ref from the allocator */ __free_pages(e->p, MT_RX_ORDER);
--
2.29.2