/** * ice_devlink_port_opt_speed_str - convert speed to a string * @speed: speed value
*/ staticconstchar *ice_devlink_port_opt_speed_str(u8 speed)
{ switch (speed & ICE_AQC_PORT_OPT_MAX_LANE_M) { case ICE_AQC_PORT_OPT_MAX_LANE_100M: return"0.1"; case ICE_AQC_PORT_OPT_MAX_LANE_1G: return"1"; case ICE_AQC_PORT_OPT_MAX_LANE_2500M: return"2.5"; case ICE_AQC_PORT_OPT_MAX_LANE_5G: return"5"; case ICE_AQC_PORT_OPT_MAX_LANE_10G: return"10"; case ICE_AQC_PORT_OPT_MAX_LANE_25G: return"25"; case ICE_AQC_PORT_OPT_MAX_LANE_40G: return"40"; case ICE_AQC_PORT_OPT_MAX_LANE_50G: return"50"; case ICE_AQC_PORT_OPT_MAX_LANE_100G: return"100";
}
return"-";
}
#define ICE_PORT_OPT_DESC_LEN 50 /** * 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
*/ staticvoid ice_devlink_port_options_print(struct ice_pf *pf)
{
u8 i, j, options_count, cnt, speed, pending_idx, active_idx; struct ice_aqc_get_port_options_elem *options, *opt; struct device *dev = ice_pf_to_dev(pf); bool active_valid, pending_valid; char desc[ICE_PORT_OPT_DESC_LEN]; constchar *str; int status;
options = kcalloc(ICE_AQC_PORT_OPT_MAX * ICE_MAX_PORT_PER_PCI_DEV, sizeof(*options), GFP_KERNEL); if (!options) return;
for (i = 0; i < ICE_MAX_PORT_PER_PCI_DEV; i++) {
opt = options + i * ICE_AQC_PORT_OPT_MAX;
options_count = ICE_AQC_PORT_OPT_MAX;
active_valid = 0;
status = ice_aq_get_port_options(&pf->hw, opt, &options_count,
i, true, &active_idx,
&active_valid, &pending_idx,
&pending_valid); if (status) {
dev_dbg(dev, "Couldn't read port option for port %d, err %d\n",
i, status); goto err;
}
}
dev_dbg(dev, "Available port split options and max port speeds (Gbps):\n");
dev_dbg(dev, "Status Split Quad 0 Quad 1\n");
dev_dbg(dev, " count L0 L1 L2 L3 L4 L5 L6 L7\n");
for (i = 0; i < options_count; i++) {
cnt = 0;
if (i == ice_active_port_option)
str = "Active"; elseif ((i == pending_idx) && pending_valid)
str = "Pending"; else
str = "";
status = ice_acquire_nvm(&pf->hw, ICE_RES_WRITE); if (status) {
dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n",
status, pf->hw.adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore"); return -EIO;
}
status = ice_nvm_write_activate(&pf->hw, ICE_AQC_NVM_ACTIV_REQ_EMPR, NULL); if (status) {
dev_dbg(dev, "ice_nvm_write_activate failed, err %d aq_err %d\n",
status, pf->hw.adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Port split request failed to save data");
ice_release_nvm(&pf->hw); return -EIO;
}
ice_release_nvm(&pf->hw);
NL_SET_ERR_MSG_MOD(extack, "Reboot required to finish port split"); return 0;
}
/** * 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.
*/ staticint
ice_devlink_port_split(struct devlink *devlink, struct devlink_port *port, unsignedint count, struct netlink_ext_ack *extack)
{ struct ice_aqc_get_port_options_elem options[ICE_AQC_PORT_OPT_MAX];
u8 i, j, active_idx, pending_idx, new_option; struct ice_pf *pf = devlink_priv(devlink);
u8 option_count = ICE_AQC_PORT_OPT_MAX; struct device *dev = ice_pf_to_dev(pf); bool active_valid, pending_valid; int status;
status = ice_aq_get_port_options(&pf->hw, options, &option_count,
0, true, &active_idx, &active_valid,
&pending_idx, &pending_valid); if (status) {
dev_dbg(dev, "Couldn't read port split options, err = %d\n",
status);
NL_SET_ERR_MSG_MOD(extack, "Failed to get available port split options"); return -EIO;
}
new_option = ICE_AQC_PORT_OPT_MAX;
active_idx = pending_valid ? pending_idx : active_idx; for (i = 1; i <= option_count; i++) { /* In order to allow switching between FW port options with * the same port split count, search for a new option starting * from the active/pending option (with array wrap around).
*/
j = (active_idx + i) % option_count;
if (new_option == active_idx) {
dev_dbg(dev, "request to split: count: %u is already set and there are no other options\n",
count);
NL_SET_ERR_MSG_MOD(extack, "Requested split count is already set");
ice_devlink_port_options_print(pf); return -EINVAL;
}
if (new_option == ICE_AQC_PORT_OPT_MAX) {
dev_dbg(dev, "request to split: count: %u not found\n", count);
NL_SET_ERR_MSG_MOD(extack, "Port split requested unsupported port config");
ice_devlink_port_options_print(pf); return -EINVAL;
}
status = ice_devlink_aq_set_port_option(pf, new_option, extack); if (status) return status;
ice_devlink_port_options_print(pf);
return 0;
}
/** * 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.
*/ staticint
ice_devlink_port_unsplit(struct devlink *devlink, struct devlink_port *port, struct netlink_ext_ack *extack)
{ return ice_devlink_port_split(devlink, port, 1, 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
*/ staticvoid
ice_devlink_set_port_split_options(struct ice_pf *pf, struct devlink_port_attrs *attrs)
{ struct ice_aqc_get_port_options_elem options[ICE_AQC_PORT_OPT_MAX];
u8 i, active_idx, pending_idx, option_count = ICE_AQC_PORT_OPT_MAX; bool active_valid, pending_valid; int status;
status = ice_aq_get_port_options(&pf->hw, options, &option_count,
0, true, &active_idx, &active_valid,
&pending_idx, &pending_valid); if (status) {
dev_dbg(ice_pf_to_dev(pf), "Couldn't read port split options, err = %d\n",
status); return;
}
/* find the biggest available port split count */ for (i = 0; i < option_count; i++)
attrs->lanes = max_t(int, attrs->lanes, options[i].pmd);
/** * 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
*/ staticvoid
ice_devlink_set_switch_id(struct ice_pf *pf, struct netdev_phys_item_id *ppid)
{ struct pci_dev *pdev = pf->pdev;
u64 id;
/** * 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)
{ struct devlink_port_attrs attrs = {}; struct devlink_port *devlink_port; struct devlink *devlink; struct ice_vsi *vsi; struct device *dev; int err;
devlink = priv_to_devlink(pf);
dev = ice_pf_to_dev(pf);
devlink_port = &pf->devlink_port;
vsi = ice_get_main_vsi(pf); if (!vsi) return -EIO;
/* As FW supports only port split options for whole device, * set port split options only for first PF.
*/ if (pf->hw.pf_id == 0)
ice_devlink_set_port_split_options(pf, &attrs);
ice_devlink_set_switch_id(pf, &attrs.switch_id);
devlink_port_attrs_set(devlink_port, &attrs);
err = devl_port_register_with_ops(devlink, devlink_port, vsi->idx,
&ice_devlink_port_ops); if (err) {
dev_err(dev, "Failed to create devlink port for PF %d, error %d\n",
pf->hw.pf_id, err); return err;
}
return 0;
}
/** * 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)
{
devl_port_unregister(&pf->devlink_port);
}
/** * 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.
*/ staticint ice_devlink_port_get_vf_fn_mac(struct devlink_port *port,
u8 *hw_addr, int *hw_addr_len, struct netlink_ext_ack *extack)
{ struct ice_vf *vf = container_of(port, struct ice_vf, devlink_port);
/** * 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.
*/ staticint ice_devlink_port_set_vf_fn_mac(struct devlink_port *port, const u8 *hw_addr, int hw_addr_len, struct netlink_ext_ack *extack)
/** * 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)
{ struct devlink_port_attrs attrs = {}; struct devlink_port *devlink_port; struct devlink *devlink; struct ice_vsi *vsi; struct device *dev; struct ice_pf *pf; int err;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
devlink_port = &vf->devlink_port;
vsi = ice_get_vf_vsi(vf); if (!vsi) return -EINVAL;
err = devl_port_register_with_ops(devlink, devlink_port, vsi->idx,
&ice_devlink_vf_port_ops); if (err) {
dev_err(dev, "Failed to create devlink port for VF %d, error %d\n",
vf->vf_id, err); return err;
}
return 0;
}
/** * 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)
{
devl_rate_leaf_destroy(&vf->devlink_port);
devl_port_unregister(&vf->devlink_port);
}
/** * 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)
{ struct devlink_port_attrs attrs = {}; struct ice_dynamic_port *dyn_port; struct devlink_port *devlink_port; struct devlink *devlink; struct ice_vsi *vsi;
/** * 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)
{
devl_port_unregister(&sf_dev->priv->devlink_port);
}
/** * 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.
*/ staticint
ice_activate_dynamic_port(struct ice_dynamic_port *dyn_port, struct netlink_ext_ack *extack)
{ int err;
if (dyn_port->active) return 0;
err = ice_sf_eth_activate(dyn_port, extack); if (err) return err;
dyn_port->active = true;
return 0;
}
/** * ice_deactivate_dynamic_port - Deactivate a dynamic port * @dyn_port: dynamic port instance to deactivate * * Undo activation of a dynamic port.
*/ staticvoid ice_deactivate_dynamic_port(struct ice_dynamic_port *dyn_port)
{ if (!dyn_port->active) return;
/** * 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.
*/ staticvoid ice_dealloc_dynamic_port(struct ice_dynamic_port *dyn_port)
{ struct devlink_port *devlink_port = &dyn_port->devlink_port; struct ice_pf *pf = dyn_port->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.
*/ staticint
ice_devlink_port_new_check_attr(struct ice_pf *pf, conststruct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack)
{ if (new_attr->flavour != DEVLINK_PORT_FLAVOUR_PCI_SF) {
NL_SET_ERR_MSG_MOD(extack, "Flavour other than pcisf is not supported"); return -EOPNOTSUPP;
}
if (new_attr->controller_valid) {
NL_SET_ERR_MSG_MOD(extack, "Setting controller is not supported"); return -EOPNOTSUPP;
}
if (new_attr->port_index_valid) {
NL_SET_ERR_MSG_MOD(extack, "Driver does not support user defined port index assignment"); return -EOPNOTSUPP;
}
if (!pci_msix_can_alloc_dyn(pf->pdev)) {
NL_SET_ERR_MSG_MOD(extack, "Dynamic MSIX-X interrupt allocation is not supported"); return -EOPNOTSUPP;
}
return 0;
}
/** * 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.
*/ staticint
ice_devlink_port_del(struct devlink *devlink, struct devlink_port *port, struct netlink_ext_ack *extack)
{ struct ice_dynamic_port *dyn_port;
/** * 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.
*/ staticint
ice_devlink_port_fn_hw_addr_set(struct devlink_port *port, const u8 *hw_addr, int hw_addr_len, struct netlink_ext_ack *extack)
{ struct ice_dynamic_port *dyn_port;
dyn_port = ice_devlink_port_to_dyn(port);
if (dyn_port->attached) {
NL_SET_ERR_MSG_MOD(extack, "Ethernet address can be change only in detached state"); return -EBUSY;
}
/** * 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.
*/ staticint
ice_devlink_port_fn_hw_addr_get(struct devlink_port *port, u8 *hw_addr, int *hw_addr_len, struct netlink_ext_ack *extack)
{ struct ice_dynamic_port *dyn_port;
/** * 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.
*/ staticint
ice_devlink_port_fn_state_set(struct devlink_port *port, enum devlink_port_fn_state state, struct netlink_ext_ack *extack)
{ struct ice_dynamic_port *dyn_port;
dyn_port = ice_devlink_port_to_dyn(port);
switch (state) { case DEVLINK_PORT_FN_STATE_ACTIVE: return ice_activate_dynamic_port(dyn_port, extack);
case DEVLINK_PORT_FN_STATE_INACTIVE:
ice_deactivate_dynamic_port(dyn_port); break;
}
return 0;
}
/** * 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.
*/ staticint
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)
{ struct ice_dynamic_port *dyn_port;
dyn_port = ice_devlink_port_to_dyn(port);
if (dyn_port->active)
*state = DEVLINK_PORT_FN_STATE_ACTIVE; else
*state = DEVLINK_PORT_FN_STATE_INACTIVE;
if (dyn_port->attached)
*opstate = DEVLINK_PORT_FN_OPSTATE_ATTACHED; else
*opstate = DEVLINK_PORT_FN_OPSTATE_DETACHED;
/** * 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.
*/ staticint
ice_reserve_sf_num(struct ice_pf *pf, conststruct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, u32 *sfnum)
{ int err;
/* If user didn't request an explicit number, pick one */ if (!new_attr->sfnum_valid) return xa_alloc(&pf->sf_nums, sfnum, NULL, xa_limit_32b,
GFP_KERNEL);
/* Otherwise, check and use the number provided */
err = xa_insert(&pf->sf_nums, new_attr->sfnum, NULL, GFP_KERNEL); if (err) { if (err == -EBUSY)
NL_SET_ERR_MSG_MOD(extack, "Subfunction with given sfnum already exists"); return err;
}
*sfnum = new_attr->sfnum;
return 0;
}
/** * 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)
{ struct devlink_port_attrs attrs = {}; struct devlink_port *devlink_port; struct devlink *devlink; struct ice_vsi *vsi; struct ice_pf *pf;
/** * 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)
{
devl_rate_leaf_destroy(&dyn_port->devlink_port);
devl_port_unregister(&dyn_port->devlink_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.
*/ staticint
ice_alloc_dynamic_port(struct ice_pf *pf, conststruct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, struct devlink_port **devlink_port)
{ struct ice_dynamic_port *dyn_port; struct ice_vsi *vsi;
u32 sfnum; int err;
err = ice_reserve_sf_num(pf, new_attr, extack, &sfnum); if (err) return err;
/** * 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, conststruct devlink_port_new_attrs *new_attr, struct netlink_ext_ack *extack, struct devlink_port **devlink_port)
{ struct ice_pf *pf = devlink_priv(devlink); int err;
err = ice_devlink_port_new_check_attr(pf, new_attr, extack); if (err) return err;
if (!ice_is_eswitch_mode_switchdev(pf)) {
NL_SET_ERR_MSG_MOD(extack, "SF ports are only supported in eswitch switchdev mode"); return -EOPNOTSUPP;
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.