-
-/**
- * Analyze gathered port parameters via Netlink to recognize master
- * and representor devices for E-Switch configuration.
- *
- * @param[in] num_vf_set
- * flag of presence of number of VFs port attribute.
- * @param[inout] switch_info
- * Port information, including port name as a number and port name
- * type if recognized
- *
- * @return
- * master and representor flags are set in switch_info according to
- * recognized parameters (if any).
- */
-void
-mlx5_nl_check_switch_info(bool num_vf_set,
- struct mlx5_switch_info *switch_info)
-{
- switch (switch_info->name_type) {
- case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN:
- /*
- * Name is not recognized, assume the master,
- * check the number of VFs key presence.
- */
- switch_info->master = num_vf_set;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_NOTSET:
- /*
- * Name is not set, this assumes the legacy naming
- * schema for master, just check if there is a
- * number of VFs key.
- */
- switch_info->master = num_vf_set;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
- /* New uplink naming schema recognized. */
- switch_info->master = 1;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_LEGACY:
- /* Legacy representors naming schema. */
- switch_info->representor = !num_vf_set;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
- /* New representors naming schema. */
- switch_info->representor = 1;
- break;
- }
-}
-
-/**
- * Analyze gathered port parameters via sysfs to recognize master
- * and representor devices for E-Switch configuration.
- *
- * @param[in] device_dir
- * flag of presence of "device" directory under port device key.
- * @param[inout] switch_info
- * Port information, including port name as a number and port name
- * type if recognized
- *
- * @return
- * master and representor flags are set in switch_info according to
- * recognized parameters (if any).
- */
-void
-mlx5_sysfs_check_switch_info(bool device_dir,
- struct mlx5_switch_info *switch_info)
-{
- switch (switch_info->name_type) {
- case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN:
- /*
- * Name is not recognized, assume the master,
- * check the device directory presence.
- */
- switch_info->master = device_dir;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_NOTSET:
- /*
- * Name is not set, this assumes the legacy naming
- * schema for master, just check if there is
- * a device directory.
- */
- switch_info->master = device_dir;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
- /* New uplink naming schema recognized. */
- switch_info->master = 1;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_LEGACY:
- /* Legacy representors naming schema. */
- switch_info->representor = !device_dir;
- break;
- case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
- /* New representors naming schema. */
- switch_info->representor = 1;
- break;
- }
-}
-
-/**
- * Extract port name, as a number, from sysfs or netlink information.
- *
- * @param[in] port_name_in
- * String representing the port name.
- * @param[out] port_info_out
- * Port information, including port name as a number and port name
- * type if recognized
- *
- * @return
- * port_name field set according to recognized name format.
- */
-void
-mlx5_translate_port_name(const char *port_name_in,
- struct mlx5_switch_info *port_info_out)
-{
- char pf_c1, pf_c2, vf_c1, vf_c2;
- char *end;
- int sc_items;
-
- /*
- * Check for port-name as a string of the form pf0vf0
- * (support kernel ver >= 5.0 or OFED ver >= 4.6).
- */
- sc_items = sscanf(port_name_in, "%c%c%d%c%c%d",
- &pf_c1, &pf_c2, &port_info_out->pf_num,
- &vf_c1, &vf_c2, &port_info_out->port_name);
- if (sc_items == 6 &&
- pf_c1 == 'p' && pf_c2 == 'f' &&
- vf_c1 == 'v' && vf_c2 == 'f') {
- port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_PFVF;
- return;
- }
- /*
- * Check for port-name as a string of the form p0
- * (support kernel ver >= 5.0, or OFED ver >= 4.6).
- */
- sc_items = sscanf(port_name_in, "%c%d",
- &pf_c1, &port_info_out->port_name);
- if (sc_items == 2 && pf_c1 == 'p') {
- port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UPLINK;
- return;
- }
- /* Check for port-name as a number (support kernel ver < 5.0 */
- errno = 0;
- port_info_out->port_name = strtol(port_name_in, &end, 0);
- if (!errno &&
- (size_t)(end - port_name_in) == strlen(port_name_in)) {
- port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_LEGACY;
- return;
- }
- port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN;
- return;
-}