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Merge branch 'netdevsim-fix-tests-and-netdevsim'

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Jakub Kicinski says:

====================
netdevsim: fix tests and netdevsim

The first patch fixes a merge which brought back some dead
code. Next a tiny re-write of the main test using netdevsim
aims to ease debugging.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-11-06 09:59:58 -08:00
commit fb90ab6ba9
2 changed files with 22 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/net/netdevsim/dev.c
View File

@ -753,7 +753,7 @@ static int nsim_dev_reload_create(struct nsim_dev *nsim_dev,
return err;
}
static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev)
{
struct nsim_dev *nsim_dev;
struct devlink *devlink;
@ -761,7 +761,7 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
devlink = devlink_alloc(&nsim_dev_devlink_ops, sizeof(*nsim_dev));
if (!devlink)
return ERR_PTR(-ENOMEM);
return -ENOMEM;
devlink_net_set(devlink, nsim_bus_dev->initial_net);
nsim_dev = devlink_priv(devlink);
nsim_dev->nsim_bus_dev = nsim_bus_dev;
@ -773,6 +773,8 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
nsim_dev->max_macs = NSIM_DEV_MAX_MACS_DEFAULT;
nsim_dev->test1 = NSIM_DEV_TEST1_DEFAULT;
dev_set_drvdata(&nsim_bus_dev->dev, nsim_dev);
err = nsim_dev_resources_register(devlink);
if (err)
goto err_devlink_free;
@ -818,7 +820,7 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
goto err_bpf_dev_exit;
devlink_params_publish(devlink);
return nsim_dev;
return 0;
err_bpf_dev_exit:
nsim_bpf_dev_exit(nsim_dev);
@ -841,7 +843,7 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
devlink_resources_unregister(devlink, NULL);
err_devlink_free:
devlink_free(devlink);
return ERR_PTR(err);
return err;
}
static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev)
@ -858,8 +860,9 @@ static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev)
nsim_fib_destroy(devlink, nsim_dev->fib_data);
}
static void nsim_dev_destroy(struct nsim_dev *nsim_dev)
void nsim_dev_remove(struct nsim_bus_dev *nsim_bus_dev)
{
struct nsim_dev *nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev);
struct devlink *devlink = priv_to_devlink(nsim_dev);
nsim_dev_reload_destroy(nsim_dev);
@ -873,40 +876,6 @@ static void nsim_dev_destroy(struct nsim_dev *nsim_dev)
devlink_free(devlink);
}
int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev)
{
struct nsim_dev *nsim_dev;
int i;
int err;
nsim_dev = nsim_dev_create(nsim_bus_dev);
if (IS_ERR(nsim_dev))
return PTR_ERR(nsim_dev);
dev_set_drvdata(&nsim_bus_dev->dev, nsim_dev);
mutex_lock(&nsim_dev->port_list_lock);
for (i = 0; i < nsim_bus_dev->port_count; i++) {
err = __nsim_dev_port_add(nsim_dev, i);
if (err)
goto err_port_del_all;
}
mutex_unlock(&nsim_dev->port_list_lock);
return 0;
err_port_del_all:
mutex_unlock(&nsim_dev->port_list_lock);
nsim_dev_port_del_all(nsim_dev);
nsim_dev_destroy(nsim_dev);
return err;
}
void nsim_dev_remove(struct nsim_bus_dev *nsim_bus_dev)
{
struct nsim_dev *nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev);
nsim_dev_destroy(nsim_dev);
}
static struct nsim_dev_port *
__nsim_dev_port_lookup(struct nsim_dev *nsim_dev, unsigned int port_index)
{

20
tools/testing/selftests/bpf/test_offload.py
View File

@ -335,13 +335,22 @@ class NetdevSimDev:
"""
Class for netdevsim bus device and its attributes.
"""
@staticmethod
def ctrl_write(path, val):
fullpath = os.path.join("/sys/bus/netdevsim/", path)
try:
with open(fullpath, "w") as f:
f.write(val)
except OSError as e:
log("WRITE %s: %r" % (fullpath, val), -e.errno)
raise e
log("WRITE %s: %r" % (fullpath, val), 0)
def __init__(self, port_count=1):
addr = 0
while True:
try:
with open("/sys/bus/netdevsim/new_device", "w") as f:
f.write("%u %u" % (addr, port_count))
self.ctrl_write("new_device", "%u %u" % (addr, port_count))
except OSError as e:
if e.errno == errno.ENOSPC:
addr += 1
@ -403,14 +412,13 @@ class NetdevSimDev:
return progs
def remove(self):
with open("/sys/bus/netdevsim/del_device", "w") as f:
f.write("%u" % self.addr)
self.ctrl_write("del_device", "%u" % (self.addr, ))
devs.remove(self)
def remove_nsim(self, nsim):
self.nsims.remove(nsim)
with open("/sys/bus/netdevsim/devices/netdevsim%u/del_port" % self.addr ,"w") as f:
f.write("%u" % nsim.port_index)
self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ),
"%u" % (nsim.port_index, ))
class NetdevSim:
"""