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| author | Sieng Piaw Liew <liew.s.piaw@gmail.com> | 2022-06-23 11:49:23 +0800 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2023-03-04 19:28:16 +0100 |
| commit | a332b8cc9cb1536684d1a33291bb9db6b22cff99 (patch) | |
| tree | 0e38f6c40e1c0591ec8995318c4e8f64b045a259 /target | |
| parent | 71ef4ec47c18ad98122c6259843dc3d9b009be08 (diff) | |
| download | upstream-a332b8cc9cb1536684d1a33291bb9db6b22cff99.tar.gz upstream-a332b8cc9cb1536684d1a33291bb9db6b22cff99.tar.bz2 upstream-a332b8cc9cb1536684d1a33291bb9db6b22cff99.zip | |
bmips: check NAPI context when refilling rx SKB
Check if we're in NAPI context when refilling rx. Normally we're almost
always running in NAPI context. Dispatch to napi_alloc_frag() directly
instead of relying on netdev_alloc_frag() which does the same but with
the overhead of local_bh_disable/enable.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[improve code format]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c index 68b5bc0cd0..854bcc0a8c 100644 --- a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c +++ b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c @@ -256,7 +256,7 @@ static inline void dmas_writel(struct bcm6368_enetsw *priv, u32 val, /* * refill rx queue */ -static int bcm6368_enetsw_refill_rx(struct net_device *dev) +static int bcm6368_enetsw_refill_rx(struct net_device *dev, bool napi_mode) { struct bcm6368_enetsw *priv = netdev_priv(dev); @@ -269,8 +269,12 @@ static int bcm6368_enetsw_refill_rx(struct net_device *dev) desc = &priv->rx_desc_cpu[desc_idx]; if (!priv->rx_buf[desc_idx]) { - unsigned char *buf = - netdev_alloc_frag(priv->rx_frag_size); + unsigned char *buf; + + if (likely(napi_mode)) + buf = napi_alloc_frag(priv->rx_frag_size); + else + buf = netdev_alloc_frag(priv->rx_frag_size); if (unlikely(!buf)) break; @@ -319,7 +323,7 @@ static void bcm6368_enetsw_refill_rx_timer(struct timer_list *t) struct net_device *dev = priv->net_dev; spin_lock(&priv->rx_lock); - bcm6368_enetsw_refill_rx(dev); + bcm6368_enetsw_refill_rx(dev, false); spin_unlock(&priv->rx_lock); } @@ -419,7 +423,7 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget) } while (--budget > 0); if (processed || !priv->rx_desc_count) { - bcm6368_enetsw_refill_rx(dev); + bcm6368_enetsw_refill_rx(dev, true); /* kick rx dma */ dmac_writel(priv, priv->dma_chan_en_mask, @@ -725,7 +729,7 @@ static int bcm6368_enetsw_open(struct net_device *dev) dma_writel(priv, DMA_BUFALLOC_FORCE_MASK | 0, DMA_BUFALLOC_REG(priv->rx_chan)); - if (bcm6368_enetsw_refill_rx(dev)) { + if (bcm6368_enetsw_refill_rx(dev, false)) { dev_err(kdev, "cannot allocate rx buffer queue\n"); ret = -ENOMEM; goto out; |