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Commit 5f07655b authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Daniel Borkmann
Browse files

netdevsim: add switch_id attribute 



Grouping netdevsim devices into "ASICs" will soon be supported.
Add switch_id attribute to all netdevsims.  For now each netdevsim
will have its switch_id matching the device id.

Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: default avatarQuentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent c23e014a

drivers/net/netdevsim/netdev.c

+24 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <net/netlink.h>

#include <net/pkt_cls.h>

#include <net/rtnetlink.h>

#include <net/switchdev.h>



#include "netdevsim.h"
@@ -144,12 +145,34 @@ static struct device_type nsim_dev_type = { 
	.release = nsim_dev_release,

};



static int

nsim_port_attr_get(struct net_device *dev, struct switchdev_attr *attr)

{

	struct netdevsim *ns = netdev_priv(dev);



	switch (attr->id) {

	case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:

		attr->u.ppid.id_len = sizeof(ns->switch_id);

		memcpy(&attr->u.ppid.id, &ns->switch_id,

		       attr->u.ppid.id_len);

		return 0;

	default:

		return -EOPNOTSUPP;

	}

}



static const struct switchdev_ops nsim_switchdev_ops = {

	.switchdev_port_attr_get	= nsim_port_attr_get,

};



static int nsim_init(struct net_device *dev)

{

	struct netdevsim *ns = netdev_priv(dev);

	int err;



	ns->netdev = dev;

	ns->switch_id = nsim_dev_id;



	ns->ddir = debugfs_create_dir(netdev_name(dev), nsim_ddir);

	if (IS_ERR_OR_NULL(ns->ddir))

		return -ENOMEM;
@@ -166,6 +189,7 @@ static int nsim_init(struct net_device *dev) 
		goto err_bpf_uninit;



	SET_NETDEV_DEV(dev, &ns->dev);

	SWITCHDEV_SET_OPS(dev, &nsim_switchdev_ops);



	err = nsim_devlink_setup(ns);

	if (err)

drivers/net/netdevsim/netdevsim.h

+1 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ struct netdevsim { 
	struct u64_stats_sync syncp;



	struct device dev;

	u32 switch_id;



	struct dentry *ddir;