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authorStephen Hemminger <shemminger@linux-foundation.org>2007-11-28 14:20:16 -0800
committerJeff Garzik <jeff@garzik.org>2007-12-01 16:35:51 -0500
commit48f6b053613b62fed7a2fe3255e5568260a8d615 (patch)
tree9f6795257b703468ce918e652fc750e2fc538406
parentdda93b486a25009456fca6b9c925ab4d7c6b6d6a (diff)
via-velocity: don't oops on MTU change (resend)
The VIA veloicty driver needs the following to allow changing MTU when down. The buffer size needs to be computed when device is brought up, not when device is initialized. This also fixes a bug where the buffer size was computed differently on change_mtu versus initial setting. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/net/via-velocity.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index 450e29d7a9f3..35cd65d6b9ed 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1242,6 +1242,9 @@ static int velocity_rx_refill(struct velocity_info *vptr)
static int velocity_init_rd_ring(struct velocity_info *vptr)
{
int ret;
+ int mtu = vptr->dev->mtu;
+
+ vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
vptr->rd_info = kcalloc(vptr->options.numrx,
sizeof(struct velocity_rd_info), GFP_KERNEL);
@@ -1898,8 +1901,6 @@ static int velocity_open(struct net_device *dev)
struct velocity_info *vptr = netdev_priv(dev);
int ret;
- vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
-
ret = velocity_init_rings(vptr);
if (ret < 0)
goto out;
@@ -1978,12 +1979,6 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
velocity_free_rd_ring(vptr);
dev->mtu = new_mtu;
- if (new_mtu > 8192)
- vptr->rx_buf_sz = 9 * 1024;
- else if (new_mtu > 4096)
- vptr->rx_buf_sz = 8192;
- else
- vptr->rx_buf_sz = 4 * 1024;
ret = velocity_init_rd_ring(vptr);
if (ret < 0)