Commit fa4dfc4a authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

netdevsim: implement fake flash updating with notifications 



Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Reviewed-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8f1956f1

drivers/net/netdevsim/dev.c

+44 −0
Original line number Diff line number Diff line
@@ -38,6 +38,8 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev) 
	nsim_dev->ports_ddir = debugfs_create_dir("ports", nsim_dev->ddir);

	if (IS_ERR_OR_NULL(nsim_dev->ports_ddir))

		return PTR_ERR_OR_ZERO(nsim_dev->ports_ddir) ?: -EINVAL;

	debugfs_create_bool("fw_update_status", 0600, nsim_dev->ddir,

			    &nsim_dev->fw_update_status);

	return 0;

}
@@ -220,8 +222,49 @@ static int nsim_dev_reload(struct devlink *devlink, 
	return 0;

}



#define NSIM_DEV_FLASH_SIZE 500000

#define NSIM_DEV_FLASH_CHUNK_SIZE 1000

#define NSIM_DEV_FLASH_CHUNK_TIME_MS 10



static int nsim_dev_flash_update(struct devlink *devlink, const char *file_name,

				 const char *component,

				 struct netlink_ext_ack *extack)

{

	struct nsim_dev *nsim_dev = devlink_priv(devlink);

	int i;



	if (nsim_dev->fw_update_status) {

		devlink_flash_update_begin_notify(devlink);

		devlink_flash_update_status_notify(devlink,

						   "Preparing to flash",

						   component, 0, 0);

	}



	for (i = 0; i < NSIM_DEV_FLASH_SIZE / NSIM_DEV_FLASH_CHUNK_SIZE; i++) {

		if (nsim_dev->fw_update_status)

			devlink_flash_update_status_notify(devlink, "Flashing",

							   component,

							   i * NSIM_DEV_FLASH_CHUNK_SIZE,

							   NSIM_DEV_FLASH_SIZE);

		msleep(NSIM_DEV_FLASH_CHUNK_TIME_MS);

	}



	if (nsim_dev->fw_update_status) {

		devlink_flash_update_status_notify(devlink, "Flashing",

						   component,

						   NSIM_DEV_FLASH_SIZE,

						   NSIM_DEV_FLASH_SIZE);

		devlink_flash_update_status_notify(devlink, "Flashing done",

						   component, 0, 0);

		devlink_flash_update_end_notify(devlink);

	}



	return 0;

}



static const struct devlink_ops nsim_dev_devlink_ops = {

	.reload = nsim_dev_reload,

	.flash_update = nsim_dev_flash_update,

};



static struct nsim_dev *
@@ -240,6 +283,7 @@ nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev, unsigned int port_count) 
	get_random_bytes(nsim_dev->switch_id.id, nsim_dev->switch_id.id_len);

	INIT_LIST_HEAD(&nsim_dev->port_list);

	mutex_init(&nsim_dev->port_list_lock);

	nsim_dev->fw_update_status = true;



	nsim_dev->fib_data = nsim_fib_create();

	if (IS_ERR(nsim_dev->fib_data)) {

drivers/net/netdevsim/netdevsim.h

+1 −0
Original line number Diff line number Diff line
@@ -157,6 +157,7 @@ struct nsim_dev { 
	struct netdev_phys_item_id switch_id;

	struct list_head port_list;

	struct mutex port_list_lock; /* protects port list */

	bool fw_update_status;

};



int nsim_dev_init(void);