diff options
| author | Cosmin Ratiu <cratiu@nvidia.com> | 2025-09-16 17:11:43 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-17 18:30:51 -0700 |
| commit | 6bdcb735fec6cb866b0d40634d4f23effba81074 (patch) | |
| tree | 8bd53f8bd56d9a83ea0f444f60cd15d4439d14c5 | |
| parent | 325db9c6f69b1408ccd2c6e237fc07697a9f210f (diff) | |
devlink: Add a 'num_doorbells' driverinit param
This parameter can be used by drivers to configure a different number of
doorbells.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | Documentation/networking/devlink/devlink-params.rst | 3 | ||||
| -rw-r--r-- | include/net/devlink.h | 4 | ||||
| -rw-r--r-- | net/devlink/param.c | 5 |
3 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index c51da4fba7e7..0a9c20d70122 100644 --- a/Documentation/networking/devlink/devlink-params.rst +++ b/Documentation/networking/devlink/devlink-params.rst @@ -148,3 +148,6 @@ own name. - The max number of Virtual Functions (VFs) exposed by the PF. after reboot/pci reset, 'sriov_totalvfs' entry under the device's sysfs directory will report this value. + * - ``num_doorbells`` + - u32 + - Controls the number of doorbells used by the device. diff --git a/include/net/devlink.h b/include/net/devlink.h index 8d4362f010e4..9e824f61e40f 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -531,6 +531,7 @@ enum devlink_param_generic_id { DEVLINK_PARAM_GENERIC_ID_ENABLE_PHC, DEVLINK_PARAM_GENERIC_ID_CLOCK_ID, DEVLINK_PARAM_GENERIC_ID_TOTAL_VFS, + DEVLINK_PARAM_GENERIC_ID_NUM_DOORBELLS, /* add new param generic ids above here*/ __DEVLINK_PARAM_GENERIC_ID_MAX, @@ -598,6 +599,9 @@ enum devlink_param_generic_id { #define DEVLINK_PARAM_GENERIC_TOTAL_VFS_NAME "total_vfs" #define DEVLINK_PARAM_GENERIC_TOTAL_VFS_TYPE DEVLINK_PARAM_TYPE_U32 +#define DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_NAME "num_doorbells" +#define DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_TYPE DEVLINK_PARAM_TYPE_U32 + #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \ { \ .id = DEVLINK_PARAM_GENERIC_ID_##_id, \ diff --git a/net/devlink/param.c b/net/devlink/param.c index 33134940c266..70e69523412c 100644 --- a/net/devlink/param.c +++ b/net/devlink/param.c @@ -107,6 +107,11 @@ static const struct devlink_param devlink_param_generic[] = { .name = DEVLINK_PARAM_GENERIC_TOTAL_VFS_NAME, .type = DEVLINK_PARAM_GENERIC_TOTAL_VFS_TYPE, }, + { + .id = DEVLINK_PARAM_GENERIC_ID_NUM_DOORBELLS, + .name = DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_NAME, + .type = DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_TYPE, + }, }; static int devlink_param_generic_verify(const struct devlink_param *param) |