bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

netdevsim: add fw_update_flash_chunk_time_ms debugfs knobs

Browse Source 
Netdevsim emulates firmware update and it takes 5 seconds to complete.
For some use cases, this is too long and unnecessary. Allow user to
configure the time by exposing debugfs a knob to set chunk time.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250722091945.79506-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jiri Pirko
2025-07-22 11:19:45 +02:00
committed by Jakub Kicinski
parent 1bbdb81a98
commit 9a5bbab285
3 changed files with 9 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/netdevsim/dev.c
View File

@@ -314,6 +314,8 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
&nsim_dev->fw_update_status);
debugfs_create_u32("fw_update_overwrite_mask", 0600, nsim_dev->ddir,
&nsim_dev->fw_update_overwrite_mask);
debugfs_create_u32("fw_update_flash_chunk_time_ms", 0600, nsim_dev->ddir,
&nsim_dev->fw_update_flash_chunk_time_ms);
debugfs_create_u32("max_macs", 0600, nsim_dev->ddir,
&nsim_dev->max_macs);
debugfs_create_bool("test1", 0600, nsim_dev->ddir,
@@ -1015,9 +1017,9 @@ static int nsim_dev_info_get(struct devlink *devlink,
DEVLINK_INFO_VERSION_TYPE_COMPONENT);
}
#define NSIM_DEV_FLASH_SIZE 500000
#define NSIM_DEV_FLASH_SIZE 50000
#define NSIM_DEV_FLASH_CHUNK_SIZE 1000
#define NSIM_DEV_FLASH_CHUNK_TIME_MS 10
#define NSIM_DEV_FLASH_CHUNK_TIME_MS_DEFAULT 100
static int nsim_dev_flash_update(struct devlink *devlink,
struct devlink_flash_update_params *params,
@@ -1041,7 +1043,7 @@ static int nsim_dev_flash_update(struct devlink *devlink,
params->component,
i * NSIM_DEV_FLASH_CHUNK_SIZE,
NSIM_DEV_FLASH_SIZE);
msleep(NSIM_DEV_FLASH_CHUNK_TIME_MS);
msleep(nsim_dev->fw_update_flash_chunk_time_ms ?: 1);
}
if (nsim_dev->fw_update_status) {
@@ -1585,6 +1587,7 @@ int nsim_drv_probe(struct nsim_bus_dev *nsim_bus_dev)
INIT_LIST_HEAD(&nsim_dev->port_list);
nsim_dev->fw_update_status = true;
nsim_dev->fw_update_overwrite_mask = 0;
nsim_dev->fw_update_flash_chunk_time_ms = NSIM_DEV_FLASH_CHUNK_TIME_MS_DEFAULT;
nsim_dev->max_macs = NSIM_DEV_MAX_MACS_DEFAULT;
nsim_dev->test1 = NSIM_DEV_TEST1_DEFAULT;
spin_lock_init(&nsim_dev->fa_cookie_lock);