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netdevsim: implement fake flash updating with notifications

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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>
This commit is contained in:
Jiri Pirko 2019-06-04 15:40:43 +02:00 committed by David S. Miller
parent 8f1956f113
commit fa4dfc4a94
2 changed files with 45 additions and 0 deletions
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44
drivers/net/netdevsim/dev.c
View File

@ -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)) {

1
drivers/net/netdevsim/netdevsim.h
View File

@ -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);