// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2024, Intel Corporation. */ #include <linux/vmalloc.h> #include "ice.h" #include "devlink.h" #include "devlink_port.h" #include "ice_lib.h" #include "ice_fltr.h" static int ice_active_port_option = …; /** * ice_devlink_port_opt_speed_str - convert speed to a string * @speed: speed value */ static const char *ice_devlink_port_opt_speed_str(u8 speed) { … } #define ICE_PORT_OPT_DESC_LEN … /** * ice_devlink_port_options_print - Print available port split options * @pf: the PF to print split port options * * Prints a table with available port split options and max port speeds */ static void ice_devlink_port_options_print(struct ice_pf *pf) { … } /** * ice_devlink_aq_set_port_option - Send set port option admin queue command * @pf: the PF to print split port options * @option_idx: selected port option * @extack: extended netdev ack structure * * Sends set port option admin queue command with selected port option and * calls NVM write activate. */ static int ice_devlink_aq_set_port_option(struct ice_pf *pf, u8 option_idx, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_split - .port_split devlink handler * @devlink: devlink instance structure * @port: devlink port structure * @count: number of ports to split to * @extack: extended netdev ack structure * * Callback for the devlink .port_split operation. * * Unfortunately, the devlink expression of available options is limited * to just a number, so search for an FW port option which supports * the specified number. As there could be multiple FW port options with * the same port split count, allow switching between them. When the same * port split count request is issued again, switch to the next FW port * option with the same port split count. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_split(struct devlink *devlink, struct devlink_port *port, unsigned int count, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_unsplit - .port_unsplit devlink handler * @devlink: devlink instance structure * @port: devlink port structure * @extack: extended netdev ack structure * * Callback for the devlink .port_unsplit operation. * Calls ice_devlink_port_split with split count set to 1. * There could be no FW option available with split count 1. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_unsplit(struct devlink *devlink, struct devlink_port *port, struct netlink_ext_ack *extack) { … } /** * ice_devlink_set_port_split_options - Set port split options * @pf: the PF to set port split options * @attrs: devlink attributes * * Sets devlink port split options based on available FW port options */ static void ice_devlink_set_port_split_options(struct ice_pf *pf, struct devlink_port_attrs *attrs) { … } static const struct devlink_port_ops ice_devlink_port_ops = …; /** * ice_devlink_set_switch_id - Set unique switch id based on pci dsn * @pf: the PF to create a devlink port for * @ppid: struct with switch id information */ static void ice_devlink_set_switch_id(struct ice_pf *pf, struct netdev_phys_item_id *ppid) { … } /** * ice_devlink_create_pf_port - Create a devlink port for this PF * @pf: the PF to create a devlink port for * * Create and register a devlink_port for this PF. * This function has to be called under devl_lock. * * Return: zero on success or an error code on failure. */ int ice_devlink_create_pf_port(struct ice_pf *pf) { … } /** * ice_devlink_destroy_pf_port - Destroy the devlink_port for this PF * @pf: the PF to cleanup * * Unregisters the devlink_port structure associated with this PF. * This function has to be called under devl_lock. */ void ice_devlink_destroy_pf_port(struct ice_pf *pf) { … } /** * ice_devlink_port_get_vf_fn_mac - .port_fn_hw_addr_get devlink handler * @port: devlink port structure * @hw_addr: MAC address of the port * @hw_addr_len: length of MAC address * @extack: extended netdev ack structure * * Callback for the devlink .port_fn_hw_addr_get operation * Return: zero on success or an error code on failure. */ static int ice_devlink_port_get_vf_fn_mac(struct devlink_port *port, u8 *hw_addr, int *hw_addr_len, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_set_vf_fn_mac - .port_fn_hw_addr_set devlink handler * @port: devlink port structure * @hw_addr: MAC address of the port * @hw_addr_len: length of MAC address * @extack: extended netdev ack structure * * Callback for the devlink .port_fn_hw_addr_set operation * Return: zero on success or an error code on failure. */ static int ice_devlink_port_set_vf_fn_mac(struct devlink_port *port, const u8 *hw_addr, int hw_addr_len, struct netlink_ext_ack *extack) { … } static const struct devlink_port_ops ice_devlink_vf_port_ops = …; /** * ice_devlink_create_vf_port - Create a devlink port for this VF * @vf: the VF to create a port for * * Create and register a devlink_port for this VF. * * Return: zero on success or an error code on failure. */ int ice_devlink_create_vf_port(struct ice_vf *vf) { … } /** * ice_devlink_destroy_vf_port - Destroy the devlink_port for this VF * @vf: the VF to cleanup * * Unregisters the devlink_port structure associated with this VF. */ void ice_devlink_destroy_vf_port(struct ice_vf *vf) { … } /** * ice_devlink_create_sf_dev_port - Register virtual port for a subfunction * @sf_dev: the subfunction device to create a devlink port for * * Register virtual flavour devlink port for the subfunction auxiliary device * created after activating a dynamically added devlink port. * * Return: zero on success or an error code on failure. */ int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev) { … } /** * ice_devlink_destroy_sf_dev_port - Destroy virtual port for a subfunction * @sf_dev: the subfunction device to create a devlink port for * * Unregisters the virtual port associated with this subfunction. */ void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev) { … } /** * ice_activate_dynamic_port - Activate a dynamic port * @dyn_port: dynamic port instance to activate * @extack: extack for reporting error messages * * Activate the dynamic port based on its flavour. * * Return: zero on success or an error code on failure. */ static int ice_activate_dynamic_port(struct ice_dynamic_port *dyn_port, struct netlink_ext_ack *extack) { … } /** * ice_deactivate_dynamic_port - Deactivate a dynamic port * @dyn_port: dynamic port instance to deactivate * * Undo activation of a dynamic port. */ static void ice_deactivate_dynamic_port(struct ice_dynamic_port *dyn_port) { … } /** * ice_dealloc_dynamic_port - Deallocate and remove a dynamic port * @dyn_port: dynamic port instance to deallocate * * Free resources associated with a dynamically added devlink port. Will * deactivate the port if its currently active. */ static void ice_dealloc_dynamic_port(struct ice_dynamic_port *dyn_port) { … } /** * ice_dealloc_all_dynamic_ports - Deallocate all dynamic devlink ports * @pf: pointer to the pf structure */ void ice_dealloc_all_dynamic_ports(struct ice_pf *pf) { … } /** * ice_devlink_port_new_check_attr - Check that new port attributes are valid * @pf: pointer to the PF structure * @new_attr: the attributes for the new port * @extack: extack for reporting error messages * * Check that the attributes for the new port are valid before continuing to * allocate the devlink port. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_new_check_attr(struct ice_pf *pf, const struct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_del - devlink handler for port delete * @devlink: pointer to devlink * @port: devlink port to be deleted * @extack: pointer to extack * * Deletes devlink port and deallocates all resources associated with * created subfunction. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_del(struct devlink *devlink, struct devlink_port *port, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_fn_hw_addr_set - devlink handler for mac address set * @port: pointer to devlink port * @hw_addr: hw address to set * @hw_addr_len: hw address length * @extack: extack for reporting error messages * * Sets mac address for the port, verifies arguments and copies address * to the subfunction structure. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_fn_hw_addr_set(struct devlink_port *port, const u8 *hw_addr, int hw_addr_len, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_fn_hw_addr_get - devlink handler for mac address get * @port: pointer to devlink port * @hw_addr: hw address to set * @hw_addr_len: hw address length * @extack: extack for reporting error messages * * Returns mac address for the port. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_fn_hw_addr_get(struct devlink_port *port, u8 *hw_addr, int *hw_addr_len, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_fn_state_set - devlink handler for port state set * @port: pointer to devlink port * @state: state to set * @extack: extack for reporting error messages * * Activates or deactivates the port. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_fn_state_set(struct devlink_port *port, enum devlink_port_fn_state state, struct netlink_ext_ack *extack) { … } /** * ice_devlink_port_fn_state_get - devlink handler for port state get * @port: pointer to devlink port * @state: admin configured state of the port * @opstate: current port operational state * @extack: extack for reporting error messages * * Gets port state. * * Return: zero on success or an error code on failure. */ static int ice_devlink_port_fn_state_get(struct devlink_port *port, enum devlink_port_fn_state *state, enum devlink_port_fn_opstate *opstate, struct netlink_ext_ack *extack) { … } static const struct devlink_port_ops ice_devlink_port_sf_ops = …; /** * ice_reserve_sf_num - Reserve a subfunction number for this port * @pf: pointer to the pf structure * @new_attr: devlink port attributes requested * @extack: extack for reporting error messages * @sfnum: on success, the sf number reserved * * Reserve a subfunction number for this port. Only called for * DEVLINK_PORT_FLAVOUR_PCI_SF ports. * * Return: zero on success or an error code on failure. */ static int ice_reserve_sf_num(struct ice_pf *pf, const struct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, u32 *sfnum) { … } /** * ice_devlink_create_sf_port - Register PCI subfunction devlink port * @dyn_port: the dynamic port instance structure for this subfunction * * Register PCI subfunction flavour devlink port for a dynamically added * subfunction port. * * Return: zero on success or an error code on failure. */ int ice_devlink_create_sf_port(struct ice_dynamic_port *dyn_port) { … } /** * ice_devlink_destroy_sf_port - Destroy the devlink_port for this SF * @dyn_port: the dynamic port instance structure for this subfunction * * Unregisters the devlink_port structure associated with this SF. */ void ice_devlink_destroy_sf_port(struct ice_dynamic_port *dyn_port) { … } /** * ice_alloc_dynamic_port - Allocate new dynamic port * @pf: pointer to the pf structure * @new_attr: devlink port attributes requested * @extack: extack for reporting error messages * @devlink_port: index of newly created devlink port * * Allocate a new dynamic port instance and prepare it for configuration * with devlink. * * Return: zero on success or an error code on failure. */ static int ice_alloc_dynamic_port(struct ice_pf *pf, const struct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, struct devlink_port **devlink_port) { … } /** * ice_devlink_port_new - devlink handler for the new port * @devlink: pointer to devlink * @new_attr: pointer to the port new attributes * @extack: extack for reporting error messages * @devlink_port: pointer to a new port * * Creates new devlink port, checks new port attributes and reject * any unsupported parameters, allocates new subfunction for that port. * * Return: zero on success or an error code on failure. */ int ice_devlink_port_new(struct devlink *devlink, const struct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, struct devlink_port **devlink_port) { … }
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