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Commit b9e23a67 authored by Taku Izumi's avatar Taku Izumi Committed by David S. Miller
Browse files

fjes: net_device_ops.ndo_change_mtu 



This patch adds net_device_ops.ndo_change_mtu.

Signed-off-by: default avatarTaku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 879bc9a3

drivers/net/fjes/fjes_main.c

+29 −0
Original line number Original line Diff line number Diff line
@@ -57,6 +57,7 @@ static void fjes_tx_stall_task(struct work_struct *); 
static irqreturn_t fjes_intr(int, void*);

static irqreturn_t fjes_intr(int, void*);

static struct rtnl_link_stats64 *

static struct rtnl_link_stats64 *

fjes_get_stats64(struct net_device *, 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_add(struct acpi_device *);

static int fjes_acpi_remove(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_stop		= fjes_close,

	.ndo_start_xmit		= fjes_xmit_frame,

	.ndo_start_xmit		= fjes_xmit_frame,

	.ndo_get_stats64	= fjes_get_stats64,

	.ndo_get_stats64	= fjes_get_stats64,

	.ndo_change_mtu		= fjes_change_mtu,

};

};





/* fjes_open - Called when a network interface is made active */

/* 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;

	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)

static irqreturn_t fjes_intr(int irq, void *data)

{

{

	struct fjes_adapter *adapter = data;

	struct fjes_adapter *adapter = data;