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netdevsim: implement fake flash updating with notifications
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2 changed files with 45 additions and 0 deletions
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@ -38,6 +38,8 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
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nsim_dev->ports_ddir = debugfs_create_dir("ports", nsim_dev->ddir);
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if (IS_ERR_OR_NULL(nsim_dev->ports_ddir))
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return PTR_ERR_OR_ZERO(nsim_dev->ports_ddir) ?: -EINVAL;
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debugfs_create_bool("fw_update_status", 0600, nsim_dev->ddir,
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&nsim_dev->fw_update_status);
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return 0;
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}
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@ -220,8 +222,49 @@ static int nsim_dev_reload(struct devlink *devlink,
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return 0;
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}
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#define NSIM_DEV_FLASH_SIZE 500000
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#define NSIM_DEV_FLASH_CHUNK_SIZE 1000
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#define NSIM_DEV_FLASH_CHUNK_TIME_MS 10
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static int nsim_dev_flash_update(struct devlink *devlink, const char *file_name,
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const char *component,
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struct netlink_ext_ack *extack)
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{
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struct nsim_dev *nsim_dev = devlink_priv(devlink);
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int i;
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if (nsim_dev->fw_update_status) {
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devlink_flash_update_begin_notify(devlink);
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devlink_flash_update_status_notify(devlink,
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"Preparing to flash",
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component, 0, 0);
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}
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for (i = 0; i < NSIM_DEV_FLASH_SIZE / NSIM_DEV_FLASH_CHUNK_SIZE; i++) {
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if (nsim_dev->fw_update_status)
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devlink_flash_update_status_notify(devlink, "Flashing",
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component,
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i * NSIM_DEV_FLASH_CHUNK_SIZE,
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NSIM_DEV_FLASH_SIZE);
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msleep(NSIM_DEV_FLASH_CHUNK_TIME_MS);
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}
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if (nsim_dev->fw_update_status) {
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devlink_flash_update_status_notify(devlink, "Flashing",
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component,
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NSIM_DEV_FLASH_SIZE,
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NSIM_DEV_FLASH_SIZE);
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devlink_flash_update_status_notify(devlink, "Flashing done",
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component, 0, 0);
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devlink_flash_update_end_notify(devlink);
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}
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return 0;
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}
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static const struct devlink_ops nsim_dev_devlink_ops = {
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.reload = nsim_dev_reload,
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.flash_update = nsim_dev_flash_update,
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};
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static struct nsim_dev *
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@ -240,6 +283,7 @@ nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev, unsigned int port_count)
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get_random_bytes(nsim_dev->switch_id.id, nsim_dev->switch_id.id_len);
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INIT_LIST_HEAD(&nsim_dev->port_list);
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mutex_init(&nsim_dev->port_list_lock);
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nsim_dev->fw_update_status = true;
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nsim_dev->fib_data = nsim_fib_create();
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if (IS_ERR(nsim_dev->fib_data)) {
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@ -157,6 +157,7 @@ struct nsim_dev {
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struct netdev_phys_item_id switch_id;
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struct list_head port_list;
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struct mutex port_list_lock; /* protects port list */
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bool fw_update_status;
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};
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int nsim_dev_init(void);
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