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netdevsim: add couple of debugfs bools to debug devlink reload

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Add flag to disallow reload and another one that causes reload to
always fail.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-06 08:30:01 +02:00 committed by David S. Miller
parent d44dc74132
commit 155ddfc5e5
2 changed files with 22 additions and 0 deletions
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20
drivers/net/netdevsim/dev.c
View file

@ -90,6 +90,10 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
&nsim_dev->test1);
debugfs_create_file("take_snapshot", 0200, nsim_dev->ddir, nsim_dev,
&nsim_dev_take_snapshot_fops);
debugfs_create_bool("dont_allow_reload", 0600, nsim_dev->ddir,
&nsim_dev->dont_allow_reload);
debugfs_create_bool("fail_reload", 0600, nsim_dev->ddir,
&nsim_dev->fail_reload);
return 0;
}
@ -478,6 +482,14 @@ static int nsim_dev_reload_down(struct devlink *devlink, bool netns_change,
{
struct nsim_dev *nsim_dev = devlink_priv(devlink);
if (nsim_dev->dont_allow_reload) {
/* For testing purposes, user set debugfs dont_allow_reload
* value to true. So forbid it.
*/
NL_SET_ERR_MSG_MOD(extack, "User forbidded reload for testing purposes");
return -EOPNOTSUPP;
}
nsim_dev_reload_destroy(nsim_dev);
return 0;
}
@ -487,6 +499,14 @@ static int nsim_dev_reload_up(struct devlink *devlink,
{
struct nsim_dev *nsim_dev = devlink_priv(devlink);
if (nsim_dev->fail_reload) {
/* For testing purposes, user set debugfs fail_reload
* value to true. Fail right away.
*/
NL_SET_ERR_MSG_MOD(extack, "User setup the reload to fail for testing purposes");
return -EINVAL;
}
return nsim_dev_reload_create(nsim_dev, extack);
}

2
drivers/net/netdevsim/netdevsim.h
View file

@ -161,6 +161,8 @@ struct nsim_dev {
bool fw_update_status;
u32 max_macs;
bool test1;
bool dont_allow_reload;
bool fail_reload;
struct devlink_region *dummy_region;
};