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ice: enable_rdma devlink param

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Implement enable_rdma devlink parameter to allow user to turn RDMA
feature on and off.

It is useful when there is no enough interrupts and user doesn't need
RDMA feature.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Michal Swiatkowski
2024-12-03 07:58:15 +01:00
committed by Tony Nguyen
parent a8c2d3932c
commit 87181cd698
2 changed files with 28 additions and 1 deletions
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21
drivers/net/ethernet/intel/ice/devlink/devlink.c
View File

@@ -1576,6 +1576,19 @@ ice_devlink_msix_min_pf_validate(struct devlink *devlink, u32 id,
return 0;
}
static int ice_devlink_enable_rdma_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
struct ice_pf *pf = devlink_priv(devlink);
bool new_state = val.vbool;
if (new_state && !test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
return -EOPNOTSUPP;
return 0;
}
enum ice_param_id {
ICE_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
ICE_DEVLINK_PARAM_ID_TX_SCHED_LAYERS,
@@ -1591,6 +1604,8 @@ static const struct devlink_param ice_dvl_rdma_params[] = {
ice_devlink_enable_iw_get,
ice_devlink_enable_iw_set,
ice_devlink_enable_iw_validate),
DEVLINK_PARAM_GENERIC(ENABLE_RDMA, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL, ice_devlink_enable_rdma_validate),
};
static const struct devlink_param ice_dvl_msix_params[] = {
@@ -1731,6 +1746,12 @@ int ice_devlink_register_params(struct ice_pf *pf)
devl_param_driverinit_value_set(devlink,
DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
value);
value.vbool = test_bit(ICE_FLAG_RDMA_ENA, pf->flags);
devl_param_driverinit_value_set(devlink,
DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
value);
return 0;
unregister_msix_params:

8
drivers/net/ethernet/intel/ice/ice_lib.c
View File

@@ -833,7 +833,13 @@ bool ice_is_safe_mode(struct ice_pf *pf)
*/
bool ice_is_rdma_ena(struct ice_pf *pf)
{
return test_bit(ICE_FLAG_RDMA_ENA, pf->flags);
union devlink_param_value value;
int err;
err = devl_param_driverinit_value_get(priv_to_devlink(pf),
DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
&value);
return err ? test_bit(ICE_FLAG_RDMA_ENA, pf->flags) : value.vbool;
}
/**