From: Ben Dooks <ben.dooks@codethink.co.uk>
To: netdev@vger.kernel.org
Cc: oneukum@suse.com, davem@davemloft.net, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-kernel@lists.codethink.co.uk,
Ben Dooks <ben.dooks@codethink.co.uk>
Subject: [PATCH 1/8] usbnet: smsc95xx: fix rx packet alignment
Date: Fri, 12 Oct 2018 09:33:58 +0100 [thread overview]
Message-ID: <20181012083405.19246-2-ben.dooks@codethink.co.uk> (raw)
In-Reply-To: <20181012083405.19246-1-ben.dooks@codethink.co.uk>
The smsc95xx driver already takes into account the NET_IP_ALIGN
parameter when setting up the receive packet data, which means
we do not need to worry about aligning the packets in the usbnet
driver.
Adding the EVENT_NO_IP_ALIGN means that the IPv4 header is now
passed to the ip_rcv() routine with the start on an aligned address.
Tested on Raspberry Pi B3.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
drivers/net/usb/smsc95xx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 06b4d290784d..401ec9feb495 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1292,6 +1292,7 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->features |= NETIF_F_RXCSUM;
dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
+ set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
smsc95xx_init_mac_address(dev);
--
2.19.1
next prev parent reply other threads:[~2018-10-12 8:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-12 8:33 SMSC95XX updates for packet alignment and turbo mode (V2) Ben Dooks
2018-10-12 8:33 ` Ben Dooks [this message]
2018-10-12 8:33 ` [PATCH 2/8] usbnet: smsc95xx: add kconfig for turbo mode Ben Dooks
2018-10-15 12:48 ` Bjørn Mork
2018-10-12 8:34 ` [PATCH 3/8] usbnet: smsc95xx: simplify tx_fixup code Ben Dooks
2018-10-12 8:34 ` [PATCH 4/8] usbnet: smsc95xx: check for csum being in last four bytes Ben Dooks
2018-10-12 8:34 ` [PATCH 5/8] usbnet: smsc95xx: align tx-buffer to word Ben Dooks
2018-10-12 8:34 ` [PATCH 6/8] usbnet: smsc95xx: fix memcpy for accessing rx-data Ben Dooks
2018-10-12 8:48 ` Sergei Shtylyov
2018-10-12 8:34 ` [PATCH 7/8] usbnet: smsc95xx: add usbnet -> priv function Ben Dooks
2018-10-12 8:34 ` [PATCH 8/8] usbnet: smsc95xx: add rx_turbo attribute Ben Dooks
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