On Tue, 28 May 2019 13:48:46 +0200, Jiri Pirko wrote:
> From: Jiri Pirko <j...@mellanox.com>
> 
> Signed-off-by: Jiri Pirko <j...@mellanox.com>
> ---
> v1->v2:
> - added debugfs toggle to enable/disable flash status notifications

Could you please add a selftest making use of netdevsim code?

Sorry, I must have liked the feature so much first time I missed this :)

> diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
> index b509b941d5ca..c5c417a3c0ce 100644
> --- a/drivers/net/netdevsim/dev.c
> +++ b/drivers/net/netdevsim/dev.c
> @@ -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);

In automated testing it may be a little annoying if this takes > 5sec

> +     }
> +
> +     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 *

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