diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 91472e049231..3a6b3950eb0e 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1847,6 +1847,75 @@ ice_discover_caps(struct ice_hw *hw, enum ice_adminq_opc opc) } /** + * ice_set_safe_mode_caps - Override dev/func capabilities when in safe mode + * @hw: pointer to the hardware structure + */ +void ice_set_safe_mode_caps(struct ice_hw *hw) +{ + struct ice_hw_func_caps *func_caps = &hw->func_caps; + struct ice_hw_dev_caps *dev_caps = &hw->dev_caps; + u32 valid_func, rxq_first_id, txq_first_id; + u32 msix_vector_first_id, max_mtu; + u32 num_func = 0; + u8 i; + + /* cache some func_caps values that should be restored after memset */ + valid_func = func_caps->common_cap.valid_functions; + txq_first_id = func_caps->common_cap.txq_first_id; + rxq_first_id = func_caps->common_cap.rxq_first_id; + msix_vector_first_id = func_caps->common_cap.msix_vector_first_id; + max_mtu = func_caps->common_cap.max_mtu; + + /* unset func capabilities */ + memset(func_caps, 0, sizeof(*func_caps)); + + /* restore cached values */ + func_caps->common_cap.valid_functions = valid_func; + func_caps->common_cap.txq_first_id = txq_first_id; + func_caps->common_cap.rxq_first_id = rxq_first_id; + func_caps->common_cap.msix_vector_first_id = msix_vector_first_id; + func_caps->common_cap.max_mtu = max_mtu; + + /* one Tx and one Rx queue in safe mode */ + func_caps->common_cap.num_rxq = 1; + func_caps->common_cap.num_txq = 1; + + /* two MSIX vectors, one for traffic and one for misc causes */ + func_caps->common_cap.num_msix_vectors = 2; + func_caps->guar_num_vsi = 1; + + /* cache some dev_caps values that should be restored after memset */ + valid_func = dev_caps->common_cap.valid_functions; + txq_first_id = dev_caps->common_cap.txq_first_id; + rxq_first_id = dev_caps->common_cap.rxq_first_id; + msix_vector_first_id = dev_caps->common_cap.msix_vector_first_id; + max_mtu = dev_caps->common_cap.max_mtu; + + /* unset dev capabilities */ + memset(dev_caps, 0, sizeof(*dev_caps)); + + /* restore cached values */ + dev_caps->common_cap.valid_functions = valid_func; + dev_caps->common_cap.txq_first_id = txq_first_id; + dev_caps->common_cap.rxq_first_id = rxq_first_id; + dev_caps->common_cap.msix_vector_first_id = msix_vector_first_id; + dev_caps->common_cap.max_mtu = max_mtu; + + /* valid_func is a bitmap. get number of functions */ +#define ICE_MAX_FUNCS 8 + for (i = 0; i < ICE_MAX_FUNCS; i++) + if (valid_func & BIT(i)) + num_func++; + + /* one Tx and one Rx queue per function in safe mode */ + dev_caps->common_cap.num_rxq = num_func; + dev_caps->common_cap.num_txq = num_func; + + /* two MSIX vectors per function */ + dev_caps->common_cap.num_msix_vectors = 2 * num_func; +} + +/** * ice_get_caps - get info about the HW * @hw: pointer to the hardware structure */ |