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authorJiri Pirko <jiri@nvidia.com>2025-07-22 11:19:45 +0200
committerJakub Kicinski <kuba@kernel.org>2025-07-23 17:08:56 -0700
commit9a5bbab285cd21f56ec759d38d452394b51c5073 (patch)
tree82a65b17832b8e1c10641a24c9ac8177f8e4242f /drivers/net/netdevsim/dev.c
parent1bbdb81a98363fd5cd0c2ac16ad5346bdf814dff (diff)
netdevsim: add fw_update_flash_chunk_time_ms debugfs knobs
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>
Diffstat (limited to 'drivers/net/netdevsim/dev.c')
-rw-r--r--drivers/net/netdevsim/dev.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 01c7edb28d96..2672d071b325 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -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);