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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 1/9] net: tap: Allocate own receive buffer
Date: Mon, 19 Sep 2022 10:01:25 +0200	[thread overview]
Message-ID: <20220919080133.877651-2-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20220919080133.877651-1-s.hauer@pengutronix.de>

Use a driver private buffer as network receive buffer rather than the
globally allocated ones which will be removed soon.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/net/tap.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 1fbfa085b1..8a659c125e 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -15,6 +15,7 @@
 struct tap_priv {
 	int fd;
 	char *name;
+	char *rx_buf;
 };
 
 static int tap_eth_send(struct eth_device *edev, void *packet, int length)
@@ -30,10 +31,10 @@ static int tap_eth_rx(struct eth_device *edev)
 	struct tap_priv *priv = edev->priv;
 	int length;
 
-	length = linux_read_nonblock(priv->fd, NetRxPackets[0], PKTSIZE);
+	length = linux_read_nonblock(priv->fd, priv->rx_buf, PKTSIZE);
 
 	if (length > 0)
-		net_receive(edev, NetRxPackets[0], length);
+		net_receive(edev, priv->rx_buf, length);
 
 	return 0;
 }
@@ -73,6 +74,8 @@ static int tap_probe(struct device_d *dev)
 		goto out;
 	}
 
+	priv->rx_buf = xmalloc(PKTSIZE);
+
 	edev = xzalloc(sizeof(struct eth_device));
 	edev->priv = priv;
 	edev->parent = dev;
-- 
2.30.2




  reply	other threads:[~2022-09-19  8:03 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-19  8:01 [PATCH 0/9] Reduce usage of NetRxPackets[] Sascha Hauer
2022-09-19  8:01 ` Sascha Hauer [this message]
2022-09-19  8:01 ` [PATCH 2/9] net: macb: Allocate own receive buffer Sascha Hauer
2022-09-19  8:01 ` [PATCH 3/9] net: cs8900: " Sascha Hauer
2022-09-19  8:01 ` [PATCH 4/9] net: liteeth: Do not use NetRxPackets Sascha Hauer
2022-09-19  8:01 ` [PATCH 5/9] net: efi-snp: Allocate own receive buffer Sascha Hauer
2022-09-19  8:01 ` [PATCH 6/9] net: smc91111: " Sascha Hauer
2022-09-19  8:01 ` [PATCH 7/9] net: smc911x: " Sascha Hauer
2022-09-19  8:01 ` [PATCH 8/9] net: ks8851_mll: " Sascha Hauer
2022-09-19  8:01 ` [PATCH 9/9] net: remove altera_tse driver Sascha Hauer

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