diff options
Diffstat (limited to 'drivers/net/ethernet/intel/idpf/idpf_lib.c')
-rw-r--r-- | drivers/net/ethernet/intel/idpf/idpf_lib.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/idpf/idpf_lib.c b/drivers/net/ethernet/intel/idpf/idpf_lib.c index 0241e498cc..58179bd733 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_lib.c +++ b/drivers/net/ethernet/intel/idpf/idpf_lib.c @@ -1060,6 +1060,71 @@ static void idpf_vport_dealloc(struct idpf_vport *vport) } /** + * idpf_is_hsplit_supported - check whether the header split is supported + * @vport: virtual port to check the capability for + * + * Return: true if it's supported by the HW/FW, false if not. + */ +static bool idpf_is_hsplit_supported(const struct idpf_vport *vport) +{ + return idpf_is_queue_model_split(vport->rxq_model) && + idpf_is_cap_ena_all(vport->adapter, IDPF_HSPLIT_CAPS, + IDPF_CAP_HSPLIT); +} + +/** + * idpf_vport_get_hsplit - get the current header split feature state + * @vport: virtual port to query the state for + * + * Return: ``ETHTOOL_TCP_DATA_SPLIT_UNKNOWN`` if not supported, + * ``ETHTOOL_TCP_DATA_SPLIT_DISABLED`` if disabled, + * ``ETHTOOL_TCP_DATA_SPLIT_ENABLED`` if active. + */ +u8 idpf_vport_get_hsplit(const struct idpf_vport *vport) +{ + const struct idpf_vport_user_config_data *config; + + if (!idpf_is_hsplit_supported(vport)) + return ETHTOOL_TCP_DATA_SPLIT_UNKNOWN; + + config = &vport->adapter->vport_config[vport->idx]->user_config; + + return test_bit(__IDPF_USER_FLAG_HSPLIT, config->user_flags) ? + ETHTOOL_TCP_DATA_SPLIT_ENABLED : + ETHTOOL_TCP_DATA_SPLIT_DISABLED; +} + +/** + * idpf_vport_set_hsplit - enable or disable header split on a given vport + * @vport: virtual port to configure + * @val: Ethtool flag controlling the header split state + * + * Return: true on success, false if not supported by the HW. + */ +bool idpf_vport_set_hsplit(const struct idpf_vport *vport, u8 val) +{ + struct idpf_vport_user_config_data *config; + + if (!idpf_is_hsplit_supported(vport)) + return val == ETHTOOL_TCP_DATA_SPLIT_UNKNOWN; + + config = &vport->adapter->vport_config[vport->idx]->user_config; + + switch (val) { + case ETHTOOL_TCP_DATA_SPLIT_UNKNOWN: + /* Default is to enable */ + case ETHTOOL_TCP_DATA_SPLIT_ENABLED: + __set_bit(__IDPF_USER_FLAG_HSPLIT, config->user_flags); + return true; + case ETHTOOL_TCP_DATA_SPLIT_DISABLED: + __clear_bit(__IDPF_USER_FLAG_HSPLIT, config->user_flags); + return true; + default: + return false; + } +} + +/** * idpf_vport_alloc - Allocates the next available struct vport in the adapter * @adapter: board private structure * @max_q: vport max queue info |