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fjes: net_device_ops.ndo_change_mtu 

This patch adds net_device_ops.ndo_change_mtu.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taku Izumi 2015-08-21 17:29:29 +09:00 committed by David S. Miller
parent 879bc9a3ea
commit b9e23a67d5
1 changed files with 29 additions and 0 deletions
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29
drivers/net/fjes/fjes_main.c
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@ -57,6 +57,7 @@ static void fjes_tx_stall_task(struct work_struct *);
static irqreturn_t fjes_intr(int, void*);
static struct rtnl_link_stats64 *
fjes_get_stats64(struct net_device *, struct rtnl_link_stats64 *);
static int fjes_change_mtu(struct net_device *, int);
static int fjes_acpi_add(struct acpi_device *);
static int fjes_acpi_remove(struct acpi_device *);
@ -222,6 +223,7 @@ static const struct net_device_ops fjes_netdev_ops = {
.ndo_stop = fjes_close,
.ndo_start_xmit = fjes_xmit_frame,
.ndo_get_stats64 = fjes_get_stats64,
.ndo_change_mtu = fjes_change_mtu,
};
/* fjes_open - Called when a network interface is made active */
@ -713,6 +715,33 @@ fjes_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
return stats;
}
static int fjes_change_mtu(struct net_device *netdev, int new_mtu)
{
bool running = netif_running(netdev);
int ret = 0;
int idx;
for (idx = 0; fjes_support_mtu[idx] != 0; idx++) {
if (new_mtu <= fjes_support_mtu[idx]) {
new_mtu = fjes_support_mtu[idx];
if (new_mtu == netdev->mtu)
return 0;
if (running)
fjes_close(netdev);
netdev->mtu = new_mtu;
if (running)
ret = fjes_open(netdev);
return ret;
}
}
return -EINVAL;
}
static irqreturn_t fjes_intr(int irq, void *data)
{
struct fjes_adapter *adapter = data;