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![Jiri Pirko](/assets/img/avatar_default.png)
Cut out another chunk from leftover.c and put port related code into a separate file. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/20230828061657.300667-3-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1515 lines
42 KiB
C
1515 lines
42 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
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*/
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#include "devl_internal.h"
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#define DEVLINK_PORT_FN_CAPS_VALID_MASK \
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(_BITUL(__DEVLINK_PORT_FN_ATTR_CAPS_MAX) - 1)
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static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = {
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[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY },
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[DEVLINK_PORT_FN_ATTR_STATE] =
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NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE,
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DEVLINK_PORT_FN_STATE_ACTIVE),
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[DEVLINK_PORT_FN_ATTR_CAPS] =
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NLA_POLICY_BITFIELD32(DEVLINK_PORT_FN_CAPS_VALID_MASK),
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};
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#define ASSERT_DEVLINK_PORT_REGISTERED(devlink_port) \
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WARN_ON_ONCE(!(devlink_port)->registered)
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#define ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port) \
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WARN_ON_ONCE((devlink_port)->registered)
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struct devlink_port *devlink_port_get_by_index(struct devlink *devlink,
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unsigned int port_index)
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{
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return xa_load(&devlink->ports, port_index);
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}
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struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink,
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struct nlattr **attrs)
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{
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if (attrs[DEVLINK_ATTR_PORT_INDEX]) {
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u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]);
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struct devlink_port *devlink_port;
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devlink_port = devlink_port_get_by_index(devlink, port_index);
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if (!devlink_port)
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return ERR_PTR(-ENODEV);
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return devlink_port;
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}
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return ERR_PTR(-EINVAL);
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}
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struct devlink_port *devlink_port_get_from_info(struct devlink *devlink,
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struct genl_info *info)
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{
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return devlink_port_get_from_attrs(devlink, info->attrs);
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}
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static void devlink_port_fn_cap_fill(struct nla_bitfield32 *caps,
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u32 cap, bool is_enable)
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{
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caps->selector |= cap;
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if (is_enable)
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caps->value |= cap;
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}
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static int devlink_port_fn_roce_fill(struct devlink_port *devlink_port,
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struct nla_bitfield32 *caps,
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struct netlink_ext_ack *extack)
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{
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bool is_enable;
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int err;
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if (!devlink_port->ops->port_fn_roce_get)
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return 0;
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err = devlink_port->ops->port_fn_roce_get(devlink_port, &is_enable,
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extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_ROCE, is_enable);
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return 0;
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}
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static int devlink_port_fn_migratable_fill(struct devlink_port *devlink_port,
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struct nla_bitfield32 *caps,
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struct netlink_ext_ack *extack)
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{
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bool is_enable;
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int err;
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if (!devlink_port->ops->port_fn_migratable_get ||
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devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF)
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return 0;
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err = devlink_port->ops->port_fn_migratable_get(devlink_port,
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&is_enable, extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_MIGRATABLE, is_enable);
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return 0;
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}
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static int devlink_port_fn_ipsec_crypto_fill(struct devlink_port *devlink_port,
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struct nla_bitfield32 *caps,
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struct netlink_ext_ack *extack)
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{
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bool is_enable;
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int err;
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if (!devlink_port->ops->port_fn_ipsec_crypto_get ||
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devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF)
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return 0;
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err = devlink_port->ops->port_fn_ipsec_crypto_get(devlink_port, &is_enable, extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_IPSEC_CRYPTO, is_enable);
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return 0;
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}
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static int devlink_port_fn_ipsec_packet_fill(struct devlink_port *devlink_port,
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struct nla_bitfield32 *caps,
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struct netlink_ext_ack *extack)
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{
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bool is_enable;
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int err;
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if (!devlink_port->ops->port_fn_ipsec_packet_get ||
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devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF)
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return 0;
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err = devlink_port->ops->port_fn_ipsec_packet_get(devlink_port, &is_enable, extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_IPSEC_PACKET, is_enable);
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return 0;
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}
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static int devlink_port_fn_caps_fill(struct devlink_port *devlink_port,
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struct sk_buff *msg,
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struct netlink_ext_ack *extack,
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bool *msg_updated)
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{
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struct nla_bitfield32 caps = {};
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int err;
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err = devlink_port_fn_roce_fill(devlink_port, &caps, extack);
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if (err)
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return err;
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err = devlink_port_fn_migratable_fill(devlink_port, &caps, extack);
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if (err)
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return err;
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err = devlink_port_fn_ipsec_crypto_fill(devlink_port, &caps, extack);
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if (err)
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return err;
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err = devlink_port_fn_ipsec_packet_fill(devlink_port, &caps, extack);
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if (err)
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return err;
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if (!caps.selector)
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return 0;
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err = nla_put_bitfield32(msg, DEVLINK_PORT_FN_ATTR_CAPS, caps.value,
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caps.selector);
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if (err)
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return err;
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*msg_updated = true;
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return 0;
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}
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int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port)
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{
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if (devlink_nl_put_handle(msg, devlink_port->devlink))
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return -EMSGSIZE;
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
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return -EMSGSIZE;
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return 0;
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}
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size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port)
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{
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struct devlink *devlink = devlink_port->devlink;
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return nla_total_size(strlen(devlink->dev->bus->name) + 1) /* DEVLINK_ATTR_BUS_NAME */
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+ nla_total_size(strlen(dev_name(devlink->dev)) + 1) /* DEVLINK_ATTR_DEV_NAME */
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+ nla_total_size(4); /* DEVLINK_ATTR_PORT_INDEX */
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}
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static int devlink_nl_port_attrs_put(struct sk_buff *msg,
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struct devlink_port *devlink_port)
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{
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struct devlink_port_attrs *attrs = &devlink_port->attrs;
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if (!devlink_port->attrs_set)
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return 0;
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if (attrs->lanes) {
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes))
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return -EMSGSIZE;
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}
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if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable))
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return -EMSGSIZE;
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if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour))
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return -EMSGSIZE;
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switch (devlink_port->attrs.flavour) {
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case DEVLINK_PORT_FLAVOUR_PCI_PF:
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER,
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attrs->pci_pf.controller) ||
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nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf))
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return -EMSGSIZE;
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if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external))
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return -EMSGSIZE;
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break;
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case DEVLINK_PORT_FLAVOUR_PCI_VF:
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER,
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attrs->pci_vf.controller) ||
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nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) ||
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nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf))
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return -EMSGSIZE;
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if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external))
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return -EMSGSIZE;
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break;
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case DEVLINK_PORT_FLAVOUR_PCI_SF:
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER,
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attrs->pci_sf.controller) ||
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nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER,
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attrs->pci_sf.pf) ||
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nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER,
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attrs->pci_sf.sf))
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return -EMSGSIZE;
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break;
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case DEVLINK_PORT_FLAVOUR_PHYSICAL:
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case DEVLINK_PORT_FLAVOUR_CPU:
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case DEVLINK_PORT_FLAVOUR_DSA:
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER,
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attrs->phys.port_number))
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return -EMSGSIZE;
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if (!attrs->split)
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return 0;
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP,
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attrs->phys.port_number))
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return -EMSGSIZE;
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER,
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attrs->phys.split_subport_number))
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return -EMSGSIZE;
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break;
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default:
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break;
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}
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return 0;
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}
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static int devlink_port_fn_hw_addr_fill(struct devlink_port *port,
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struct sk_buff *msg,
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struct netlink_ext_ack *extack,
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bool *msg_updated)
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{
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u8 hw_addr[MAX_ADDR_LEN];
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int hw_addr_len;
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int err;
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if (!port->ops->port_fn_hw_addr_get)
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return 0;
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err = port->ops->port_fn_hw_addr_get(port, hw_addr, &hw_addr_len,
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extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr);
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if (err)
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return err;
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*msg_updated = true;
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return 0;
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}
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static bool
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devlink_port_fn_state_valid(enum devlink_port_fn_state state)
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{
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return state == DEVLINK_PORT_FN_STATE_INACTIVE ||
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state == DEVLINK_PORT_FN_STATE_ACTIVE;
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}
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static bool
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devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate)
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{
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return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED ||
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opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED;
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}
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static int devlink_port_fn_state_fill(struct devlink_port *port,
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struct sk_buff *msg,
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struct netlink_ext_ack *extack,
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bool *msg_updated)
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{
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enum devlink_port_fn_opstate opstate;
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enum devlink_port_fn_state state;
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int err;
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if (!port->ops->port_fn_state_get)
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return 0;
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err = port->ops->port_fn_state_get(port, &state, &opstate, extack);
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if (err) {
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if (err == -EOPNOTSUPP)
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return 0;
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return err;
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}
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if (!devlink_port_fn_state_valid(state)) {
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WARN_ON_ONCE(1);
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NL_SET_ERR_MSG(extack, "Invalid state read from driver");
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return -EINVAL;
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}
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if (!devlink_port_fn_opstate_valid(opstate)) {
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WARN_ON_ONCE(1);
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NL_SET_ERR_MSG(extack, "Invalid operational state read from driver");
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return -EINVAL;
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}
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if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) ||
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nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate))
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return -EMSGSIZE;
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*msg_updated = true;
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return 0;
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}
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static int
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devlink_port_fn_mig_set(struct devlink_port *devlink_port, bool enable,
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struct netlink_ext_ack *extack)
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{
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return devlink_port->ops->port_fn_migratable_set(devlink_port, enable,
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extack);
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}
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static int
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devlink_port_fn_roce_set(struct devlink_port *devlink_port, bool enable,
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struct netlink_ext_ack *extack)
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{
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return devlink_port->ops->port_fn_roce_set(devlink_port, enable,
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extack);
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}
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static int
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devlink_port_fn_ipsec_crypto_set(struct devlink_port *devlink_port, bool enable,
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struct netlink_ext_ack *extack)
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{
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return devlink_port->ops->port_fn_ipsec_crypto_set(devlink_port, enable, extack);
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}
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static int
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devlink_port_fn_ipsec_packet_set(struct devlink_port *devlink_port, bool enable,
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struct netlink_ext_ack *extack)
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{
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return devlink_port->ops->port_fn_ipsec_packet_set(devlink_port, enable, extack);
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}
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static int devlink_port_fn_caps_set(struct devlink_port *devlink_port,
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const struct nlattr *attr,
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struct netlink_ext_ack *extack)
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{
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struct nla_bitfield32 caps;
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u32 caps_value;
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int err;
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caps = nla_get_bitfield32(attr);
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caps_value = caps.value & caps.selector;
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if (caps.selector & DEVLINK_PORT_FN_CAP_ROCE) {
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err = devlink_port_fn_roce_set(devlink_port,
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caps_value & DEVLINK_PORT_FN_CAP_ROCE,
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extack);
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if (err)
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return err;
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}
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if (caps.selector & DEVLINK_PORT_FN_CAP_MIGRATABLE) {
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err = devlink_port_fn_mig_set(devlink_port, caps_value &
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DEVLINK_PORT_FN_CAP_MIGRATABLE,
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extack);
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if (err)
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return err;
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}
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if (caps.selector & DEVLINK_PORT_FN_CAP_IPSEC_CRYPTO) {
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err = devlink_port_fn_ipsec_crypto_set(devlink_port, caps_value &
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DEVLINK_PORT_FN_CAP_IPSEC_CRYPTO,
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extack);
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if (err)
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return err;
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}
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if (caps.selector & DEVLINK_PORT_FN_CAP_IPSEC_PACKET) {
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err = devlink_port_fn_ipsec_packet_set(devlink_port, caps_value &
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DEVLINK_PORT_FN_CAP_IPSEC_PACKET,
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extack);
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if (err)
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return err;
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}
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return 0;
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}
|
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|
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static int
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devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port,
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struct netlink_ext_ack *extack)
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{
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struct nlattr *function_attr;
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bool msg_updated = false;
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int err;
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function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION);
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if (!function_attr)
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return -EMSGSIZE;
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err = devlink_port_fn_hw_addr_fill(port, msg, extack, &msg_updated);
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if (err)
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goto out;
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err = devlink_port_fn_caps_fill(port, msg, extack, &msg_updated);
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if (err)
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goto out;
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err = devlink_port_fn_state_fill(port, msg, extack, &msg_updated);
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out:
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if (err || !msg_updated)
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nla_nest_cancel(msg, function_attr);
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else
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nla_nest_end(msg, function_attr);
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return err;
|
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}
|
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|
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static int devlink_nl_port_fill(struct sk_buff *msg,
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struct devlink_port *devlink_port,
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enum devlink_command cmd, u32 portid, u32 seq,
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int flags, struct netlink_ext_ack *extack)
|
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{
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struct devlink *devlink = devlink_port->devlink;
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void *hdr;
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hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
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if (!hdr)
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return -EMSGSIZE;
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if (devlink_nl_put_handle(msg, devlink))
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goto nla_put_failure;
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
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goto nla_put_failure;
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spin_lock_bh(&devlink_port->type_lock);
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if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type))
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goto nla_put_failure_type_locked;
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if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET &&
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nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE,
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devlink_port->desired_type))
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goto nla_put_failure_type_locked;
|
|
if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) {
|
|
if (devlink_port->type_eth.netdev &&
|
|
(nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX,
|
|
devlink_port->type_eth.ifindex) ||
|
|
nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME,
|
|
devlink_port->type_eth.ifname)))
|
|
goto nla_put_failure_type_locked;
|
|
}
|
|
if (devlink_port->type == DEVLINK_PORT_TYPE_IB) {
|
|
struct ib_device *ibdev = devlink_port->type_ib.ibdev;
|
|
|
|
if (ibdev &&
|
|
nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME,
|
|
ibdev->name))
|
|
goto nla_put_failure_type_locked;
|
|
}
|
|
spin_unlock_bh(&devlink_port->type_lock);
|
|
if (devlink_nl_port_attrs_put(msg, devlink_port))
|
|
goto nla_put_failure;
|
|
if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack))
|
|
goto nla_put_failure;
|
|
if (devlink_port->linecard &&
|
|
nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX,
|
|
devlink_port->linecard->index))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure_type_locked:
|
|
spin_unlock_bh(&devlink_port->type_lock);
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static void devlink_port_notify(struct devlink_port *devlink_port,
|
|
enum devlink_command cmd)
|
|
{
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL);
|
|
|
|
if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
|
|
return;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg,
|
|
0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
|
|
}
|
|
|
|
static void devlink_ports_notify(struct devlink *devlink,
|
|
enum devlink_command cmd)
|
|
{
|
|
struct devlink_port *devlink_port;
|
|
unsigned long port_index;
|
|
|
|
xa_for_each(&devlink->ports, port_index, devlink_port)
|
|
devlink_port_notify(devlink_port, cmd);
|
|
}
|
|
|
|
void devlink_ports_notify_register(struct devlink *devlink)
|
|
{
|
|
devlink_ports_notify(devlink, DEVLINK_CMD_PORT_NEW);
|
|
}
|
|
|
|
void devlink_ports_notify_unregister(struct devlink *devlink)
|
|
{
|
|
devlink_ports_notify(devlink, DEVLINK_CMD_PORT_DEL);
|
|
}
|
|
|
|
int devlink_nl_port_get_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW,
|
|
info->snd_portid, info->snd_seq, 0,
|
|
info->extack);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int
|
|
devlink_nl_port_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
|
|
struct netlink_callback *cb, int flags)
|
|
{
|
|
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
|
|
struct devlink_port *devlink_port;
|
|
unsigned long port_index;
|
|
int err = 0;
|
|
|
|
xa_for_each_start(&devlink->ports, port_index, devlink_port, state->idx) {
|
|
err = devlink_nl_port_fill(msg, devlink_port,
|
|
DEVLINK_CMD_NEW,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, flags,
|
|
cb->extack);
|
|
if (err) {
|
|
state->idx = port_index;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int devlink_nl_port_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
return devlink_nl_dumpit(skb, cb, devlink_nl_port_get_dump_one);
|
|
}
|
|
|
|
static int devlink_port_type_set(struct devlink_port *devlink_port,
|
|
enum devlink_port_type port_type)
|
|
|
|
{
|
|
int err;
|
|
|
|
if (!devlink_port->ops->port_type_set)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (port_type == devlink_port->type)
|
|
return 0;
|
|
|
|
err = devlink_port->ops->port_type_set(devlink_port, port_type);
|
|
if (err)
|
|
return err;
|
|
|
|
devlink_port->desired_type = port_type;
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_port_function_hw_addr_set(struct devlink_port *port,
|
|
const struct nlattr *attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
const u8 *hw_addr;
|
|
int hw_addr_len;
|
|
|
|
hw_addr = nla_data(attr);
|
|
hw_addr_len = nla_len(attr);
|
|
if (hw_addr_len > MAX_ADDR_LEN) {
|
|
NL_SET_ERR_MSG(extack, "Port function hardware address too long");
|
|
return -EINVAL;
|
|
}
|
|
if (port->type == DEVLINK_PORT_TYPE_ETH) {
|
|
if (hw_addr_len != ETH_ALEN) {
|
|
NL_SET_ERR_MSG(extack, "Address must be 6 bytes for Ethernet device");
|
|
return -EINVAL;
|
|
}
|
|
if (!is_unicast_ether_addr(hw_addr)) {
|
|
NL_SET_ERR_MSG(extack, "Non-unicast hardware address unsupported");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return port->ops->port_fn_hw_addr_set(port, hw_addr, hw_addr_len,
|
|
extack);
|
|
}
|
|
|
|
static int devlink_port_fn_state_set(struct devlink_port *port,
|
|
const struct nlattr *attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
enum devlink_port_fn_state state;
|
|
|
|
state = nla_get_u8(attr);
|
|
return port->ops->port_fn_state_set(port, state, extack);
|
|
}
|
|
|
|
static int devlink_port_function_validate(struct devlink_port *devlink_port,
|
|
struct nlattr **tb,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
const struct devlink_port_ops *ops = devlink_port->ops;
|
|
struct nlattr *attr;
|
|
|
|
if (tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] &&
|
|
!ops->port_fn_hw_addr_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR],
|
|
"Port doesn't support function attributes");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (tb[DEVLINK_PORT_FN_ATTR_STATE] && !ops->port_fn_state_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR],
|
|
"Function does not support state setting");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
attr = tb[DEVLINK_PORT_FN_ATTR_CAPS];
|
|
if (attr) {
|
|
struct nla_bitfield32 caps;
|
|
|
|
caps = nla_get_bitfield32(attr);
|
|
if (caps.selector & DEVLINK_PORT_FN_CAP_ROCE &&
|
|
!ops->port_fn_roce_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"Port doesn't support RoCE function attribute");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (caps.selector & DEVLINK_PORT_FN_CAP_MIGRATABLE) {
|
|
if (!ops->port_fn_migratable_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"Port doesn't support migratable function attribute");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"migratable function attribute supported for VFs only");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
if (caps.selector & DEVLINK_PORT_FN_CAP_IPSEC_CRYPTO) {
|
|
if (!ops->port_fn_ipsec_crypto_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"Port doesn't support ipsec_crypto function attribute");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"ipsec_crypto function attribute supported for VFs only");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
if (caps.selector & DEVLINK_PORT_FN_CAP_IPSEC_PACKET) {
|
|
if (!ops->port_fn_ipsec_packet_set) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"Port doesn't support ipsec_packet function attribute");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF) {
|
|
NL_SET_ERR_MSG_ATTR(extack, attr,
|
|
"ipsec_packet function attribute supported for VFs only");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_port_function_set(struct devlink_port *port,
|
|
const struct nlattr *attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1];
|
|
int err;
|
|
|
|
err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr,
|
|
devlink_function_nl_policy, extack);
|
|
if (err < 0) {
|
|
NL_SET_ERR_MSG(extack, "Fail to parse port function attributes");
|
|
return err;
|
|
}
|
|
|
|
err = devlink_port_function_validate(port, tb, extack);
|
|
if (err)
|
|
return err;
|
|
|
|
attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR];
|
|
if (attr) {
|
|
err = devlink_port_function_hw_addr_set(port, attr, extack);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
attr = tb[DEVLINK_PORT_FN_ATTR_CAPS];
|
|
if (attr) {
|
|
err = devlink_port_fn_caps_set(port, attr, extack);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
/* Keep this as the last function attribute set, so that when
|
|
* multiple port function attributes are set along with state,
|
|
* Those can be applied first before activating the state.
|
|
*/
|
|
attr = tb[DEVLINK_PORT_FN_ATTR_STATE];
|
|
if (attr)
|
|
err = devlink_port_fn_state_set(port, attr, extack);
|
|
|
|
if (!err)
|
|
devlink_port_notify(port, DEVLINK_CMD_PORT_NEW);
|
|
return err;
|
|
}
|
|
|
|
int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[1];
|
|
int err;
|
|
|
|
if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) {
|
|
enum devlink_port_type port_type;
|
|
|
|
port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]);
|
|
err = devlink_port_type_set(devlink_port, port_type);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) {
|
|
struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION];
|
|
struct netlink_ext_ack *extack = info->extack;
|
|
|
|
err = devlink_port_function_set(devlink_port, attr, extack);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[1];
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
u32 count;
|
|
|
|
if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_SPLIT_COUNT))
|
|
return -EINVAL;
|
|
if (!devlink_port->ops->port_split)
|
|
return -EOPNOTSUPP;
|
|
|
|
count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]);
|
|
|
|
if (!devlink_port->attrs.splittable) {
|
|
/* Split ports cannot be split. */
|
|
if (devlink_port->attrs.split)
|
|
NL_SET_ERR_MSG(info->extack, "Port cannot be split further");
|
|
else
|
|
NL_SET_ERR_MSG(info->extack, "Port cannot be split");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) {
|
|
NL_SET_ERR_MSG(info->extack, "Invalid split count");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return devlink_port->ops->port_split(devlink, devlink_port, count,
|
|
info->extack);
|
|
}
|
|
|
|
int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[1];
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
|
|
if (!devlink_port->ops->port_unsplit)
|
|
return -EOPNOTSUPP;
|
|
return devlink_port->ops->port_unsplit(devlink, devlink_port, info->extack);
|
|
}
|
|
|
|
int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct netlink_ext_ack *extack = info->extack;
|
|
struct devlink_port_new_attrs new_attrs = {};
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_port *devlink_port;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
if (!devlink->ops->port_new)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] ||
|
|
!info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) {
|
|
NL_SET_ERR_MSG(extack, "Port flavour or PCI PF are not specified");
|
|
return -EINVAL;
|
|
}
|
|
new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]);
|
|
new_attrs.pfnum =
|
|
nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]);
|
|
|
|
if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) {
|
|
/* Port index of the new port being created by driver. */
|
|
new_attrs.port_index =
|
|
nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
|
|
new_attrs.port_index_valid = true;
|
|
}
|
|
if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) {
|
|
new_attrs.controller =
|
|
nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]);
|
|
new_attrs.controller_valid = true;
|
|
}
|
|
if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF &&
|
|
info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) {
|
|
new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]);
|
|
new_attrs.sfnum_valid = true;
|
|
}
|
|
|
|
err = devlink->ops->port_new(devlink, &new_attrs,
|
|
extack, &devlink_port);
|
|
if (err)
|
|
return err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg) {
|
|
err = -ENOMEM;
|
|
goto err_out_port_del;
|
|
}
|
|
err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW,
|
|
info->snd_portid, info->snd_seq, 0, NULL);
|
|
if (WARN_ON_ONCE(err))
|
|
goto err_out_msg_free;
|
|
err = genlmsg_reply(msg, info);
|
|
if (err)
|
|
goto err_out_port_del;
|
|
return 0;
|
|
|
|
err_out_msg_free:
|
|
nlmsg_free(msg);
|
|
err_out_port_del:
|
|
devlink_port->ops->port_del(devlink, devlink_port, NULL);
|
|
return err;
|
|
}
|
|
|
|
int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[1];
|
|
struct netlink_ext_ack *extack = info->extack;
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
|
|
if (!devlink_port->ops->port_del)
|
|
return -EOPNOTSUPP;
|
|
|
|
return devlink_port->ops->port_del(devlink, devlink_port, extack);
|
|
}
|
|
|
|
static void devlink_port_type_warn(struct work_struct *work)
|
|
{
|
|
struct devlink_port *port = container_of(to_delayed_work(work),
|
|
struct devlink_port,
|
|
type_warn_dw);
|
|
dev_warn(port->devlink->dev, "Type was not set for devlink port.");
|
|
}
|
|
|
|
static bool devlink_port_type_should_warn(struct devlink_port *devlink_port)
|
|
{
|
|
/* Ignore CPU and DSA flavours. */
|
|
return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU &&
|
|
devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA &&
|
|
devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED;
|
|
}
|
|
|
|
#define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600)
|
|
|
|
static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port)
|
|
{
|
|
if (!devlink_port_type_should_warn(devlink_port))
|
|
return;
|
|
/* Schedule a work to WARN in case driver does not set port
|
|
* type within timeout.
|
|
*/
|
|
schedule_delayed_work(&devlink_port->type_warn_dw,
|
|
DEVLINK_PORT_TYPE_WARN_TIMEOUT);
|
|
}
|
|
|
|
static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port)
|
|
{
|
|
if (!devlink_port_type_should_warn(devlink_port))
|
|
return;
|
|
cancel_delayed_work_sync(&devlink_port->type_warn_dw);
|
|
}
|
|
|
|
/**
|
|
* devlink_port_init() - Init devlink port
|
|
*
|
|
* @devlink: devlink
|
|
* @devlink_port: devlink port
|
|
*
|
|
* Initialize essential stuff that is needed for functions
|
|
* that may be called before devlink port registration.
|
|
* Call to this function is optional and not needed
|
|
* in case the driver does not use such functions.
|
|
*/
|
|
void devlink_port_init(struct devlink *devlink,
|
|
struct devlink_port *devlink_port)
|
|
{
|
|
if (devlink_port->initialized)
|
|
return;
|
|
devlink_port->devlink = devlink;
|
|
INIT_LIST_HEAD(&devlink_port->region_list);
|
|
devlink_port->initialized = true;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_init);
|
|
|
|
/**
|
|
* devlink_port_fini() - Deinitialize devlink port
|
|
*
|
|
* @devlink_port: devlink port
|
|
*
|
|
* Deinitialize essential stuff that is in use for functions
|
|
* that may be called after devlink port unregistration.
|
|
* Call to this function is optional and not needed
|
|
* in case the driver does not use such functions.
|
|
*/
|
|
void devlink_port_fini(struct devlink_port *devlink_port)
|
|
{
|
|
WARN_ON(!list_empty(&devlink_port->region_list));
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_fini);
|
|
|
|
static const struct devlink_port_ops devlink_port_dummy_ops = {};
|
|
|
|
/**
|
|
* devl_port_register_with_ops() - Register devlink port
|
|
*
|
|
* @devlink: devlink
|
|
* @devlink_port: devlink port
|
|
* @port_index: driver-specific numerical identifier of the port
|
|
* @ops: port ops
|
|
*
|
|
* Register devlink port with provided port index. User can use
|
|
* any indexing, even hw-related one. devlink_port structure
|
|
* is convenient to be embedded inside user driver private structure.
|
|
* Note that the caller should take care of zeroing the devlink_port
|
|
* structure.
|
|
*/
|
|
int devl_port_register_with_ops(struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
unsigned int port_index,
|
|
const struct devlink_port_ops *ops)
|
|
{
|
|
int err;
|
|
|
|
devl_assert_locked(devlink);
|
|
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
devlink_port_init(devlink, devlink_port);
|
|
devlink_port->registered = true;
|
|
devlink_port->index = port_index;
|
|
devlink_port->ops = ops ? ops : &devlink_port_dummy_ops;
|
|
spin_lock_init(&devlink_port->type_lock);
|
|
INIT_LIST_HEAD(&devlink_port->reporter_list);
|
|
err = xa_insert(&devlink->ports, port_index, devlink_port, GFP_KERNEL);
|
|
if (err) {
|
|
devlink_port->registered = false;
|
|
return err;
|
|
}
|
|
|
|
INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn);
|
|
devlink_port_type_warn_schedule(devlink_port);
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_port_register_with_ops);
|
|
|
|
/**
|
|
* devlink_port_register_with_ops - Register devlink port
|
|
*
|
|
* @devlink: devlink
|
|
* @devlink_port: devlink port
|
|
* @port_index: driver-specific numerical identifier of the port
|
|
* @ops: port ops
|
|
*
|
|
* Register devlink port with provided port index. User can use
|
|
* any indexing, even hw-related one. devlink_port structure
|
|
* is convenient to be embedded inside user driver private structure.
|
|
* Note that the caller should take care of zeroing the devlink_port
|
|
* structure.
|
|
*
|
|
* Context: Takes and release devlink->lock <mutex>.
|
|
*/
|
|
int devlink_port_register_with_ops(struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
unsigned int port_index,
|
|
const struct devlink_port_ops *ops)
|
|
{
|
|
int err;
|
|
|
|
devl_lock(devlink);
|
|
err = devl_port_register_with_ops(devlink, devlink_port,
|
|
port_index, ops);
|
|
devl_unlock(devlink);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_register_with_ops);
|
|
|
|
/**
|
|
* devl_port_unregister() - Unregister devlink port
|
|
*
|
|
* @devlink_port: devlink port
|
|
*/
|
|
void devl_port_unregister(struct devlink_port *devlink_port)
|
|
{
|
|
lockdep_assert_held(&devlink_port->devlink->lock);
|
|
WARN_ON(devlink_port->type != DEVLINK_PORT_TYPE_NOTSET);
|
|
|
|
devlink_port_type_warn_cancel(devlink_port);
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL);
|
|
xa_erase(&devlink_port->devlink->ports, devlink_port->index);
|
|
WARN_ON(!list_empty(&devlink_port->reporter_list));
|
|
devlink_port->registered = false;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_port_unregister);
|
|
|
|
/**
|
|
* devlink_port_unregister - Unregister devlink port
|
|
*
|
|
* @devlink_port: devlink port
|
|
*
|
|
* Context: Takes and release devlink->lock <mutex>.
|
|
*/
|
|
void devlink_port_unregister(struct devlink_port *devlink_port)
|
|
{
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
|
|
devl_lock(devlink);
|
|
devl_port_unregister(devlink_port);
|
|
devl_unlock(devlink);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_unregister);
|
|
|
|
static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port,
|
|
struct net_device *netdev)
|
|
{
|
|
const struct net_device_ops *ops = netdev->netdev_ops;
|
|
|
|
/* If driver registers devlink port, it should set devlink port
|
|
* attributes accordingly so the compat functions are called
|
|
* and the original ops are not used.
|
|
*/
|
|
if (ops->ndo_get_phys_port_name) {
|
|
/* Some drivers use the same set of ndos for netdevs
|
|
* that have devlink_port registered and also for
|
|
* those who don't. Make sure that ndo_get_phys_port_name
|
|
* returns -EOPNOTSUPP here in case it is defined.
|
|
* Warn if not.
|
|
*/
|
|
char name[IFNAMSIZ];
|
|
int err;
|
|
|
|
err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name));
|
|
WARN_ON(err != -EOPNOTSUPP);
|
|
}
|
|
if (ops->ndo_get_port_parent_id) {
|
|
/* Some drivers use the same set of ndos for netdevs
|
|
* that have devlink_port registered and also for
|
|
* those who don't. Make sure that ndo_get_port_parent_id
|
|
* returns -EOPNOTSUPP here in case it is defined.
|
|
* Warn if not.
|
|
*/
|
|
struct netdev_phys_item_id ppid;
|
|
int err;
|
|
|
|
err = ops->ndo_get_port_parent_id(netdev, &ppid);
|
|
WARN_ON(err != -EOPNOTSUPP);
|
|
}
|
|
}
|
|
|
|
static void __devlink_port_type_set(struct devlink_port *devlink_port,
|
|
enum devlink_port_type type,
|
|
void *type_dev)
|
|
{
|
|
struct net_device *netdev = type_dev;
|
|
|
|
ASSERT_DEVLINK_PORT_REGISTERED(devlink_port);
|
|
|
|
if (type == DEVLINK_PORT_TYPE_NOTSET) {
|
|
devlink_port_type_warn_schedule(devlink_port);
|
|
} else {
|
|
devlink_port_type_warn_cancel(devlink_port);
|
|
if (type == DEVLINK_PORT_TYPE_ETH && netdev)
|
|
devlink_port_type_netdev_checks(devlink_port, netdev);
|
|
}
|
|
|
|
spin_lock_bh(&devlink_port->type_lock);
|
|
devlink_port->type = type;
|
|
switch (type) {
|
|
case DEVLINK_PORT_TYPE_ETH:
|
|
devlink_port->type_eth.netdev = netdev;
|
|
if (netdev) {
|
|
ASSERT_RTNL();
|
|
devlink_port->type_eth.ifindex = netdev->ifindex;
|
|
BUILD_BUG_ON(sizeof(devlink_port->type_eth.ifname) !=
|
|
sizeof(netdev->name));
|
|
strcpy(devlink_port->type_eth.ifname, netdev->name);
|
|
}
|
|
break;
|
|
case DEVLINK_PORT_TYPE_IB:
|
|
devlink_port->type_ib.ibdev = type_dev;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
spin_unlock_bh(&devlink_port->type_lock);
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
}
|
|
|
|
/**
|
|
* devlink_port_type_eth_set - Set port type to Ethernet
|
|
*
|
|
* @devlink_port: devlink port
|
|
*
|
|
* If driver is calling this, most likely it is doing something wrong.
|
|
*/
|
|
void devlink_port_type_eth_set(struct devlink_port *devlink_port)
|
|
{
|
|
dev_warn(devlink_port->devlink->dev,
|
|
"devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n",
|
|
devlink_port->index);
|
|
__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_eth_set);
|
|
|
|
/**
|
|
* devlink_port_type_ib_set - Set port type to InfiniBand
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @ibdev: related IB device
|
|
*/
|
|
void devlink_port_type_ib_set(struct devlink_port *devlink_port,
|
|
struct ib_device *ibdev)
|
|
{
|
|
__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_ib_set);
|
|
|
|
/**
|
|
* devlink_port_type_clear - Clear port type
|
|
*
|
|
* @devlink_port: devlink port
|
|
*
|
|
* If driver is calling this for clearing Ethernet type, most likely
|
|
* it is doing something wrong.
|
|
*/
|
|
void devlink_port_type_clear(struct devlink_port *devlink_port)
|
|
{
|
|
if (devlink_port->type == DEVLINK_PORT_TYPE_ETH)
|
|
dev_warn(devlink_port->devlink->dev,
|
|
"devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n",
|
|
devlink_port->index);
|
|
__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_clear);
|
|
|
|
int devlink_port_netdevice_event(struct notifier_block *nb,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
|
|
struct devlink_port *devlink_port = netdev->devlink_port;
|
|
struct devlink *devlink;
|
|
|
|
if (!devlink_port)
|
|
return NOTIFY_OK;
|
|
devlink = devlink_port->devlink;
|
|
|
|
switch (event) {
|
|
case NETDEV_POST_INIT:
|
|
/* Set the type but not netdev pointer. It is going to be set
|
|
* later on by NETDEV_REGISTER event. Happens once during
|
|
* netdevice register
|
|
*/
|
|
__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH,
|
|
NULL);
|
|
break;
|
|
case NETDEV_REGISTER:
|
|
case NETDEV_CHANGENAME:
|
|
if (devlink_net(devlink) != dev_net(netdev))
|
|
return NOTIFY_OK;
|
|
/* Set the netdev on top of previously set type. Note this
|
|
* event happens also during net namespace change so here
|
|
* we take into account netdev pointer appearing in this
|
|
* namespace.
|
|
*/
|
|
__devlink_port_type_set(devlink_port, devlink_port->type,
|
|
netdev);
|
|
break;
|
|
case NETDEV_UNREGISTER:
|
|
if (devlink_net(devlink) != dev_net(netdev))
|
|
return NOTIFY_OK;
|
|
/* Clear netdev pointer, but not the type. This event happens
|
|
* also during net namespace change so we need to clear
|
|
* pointer to netdev that is going to another net namespace.
|
|
*/
|
|
__devlink_port_type_set(devlink_port, devlink_port->type,
|
|
NULL);
|
|
break;
|
|
case NETDEV_PRE_UNINIT:
|
|
/* Clear the type and the netdev pointer. Happens one during
|
|
* netdevice unregister.
|
|
*/
|
|
__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET,
|
|
NULL);
|
|
break;
|
|
}
|
|
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static int __devlink_port_attrs_set(struct devlink_port *devlink_port,
|
|
enum devlink_port_flavour flavour)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
|
|
devlink_port->attrs_set = true;
|
|
attrs->flavour = flavour;
|
|
if (attrs->switch_id.id_len) {
|
|
devlink_port->switch_port = true;
|
|
if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN))
|
|
attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN;
|
|
} else {
|
|
devlink_port->switch_port = false;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* devlink_port_attrs_set - Set port attributes
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @attrs: devlink port attrs
|
|
*/
|
|
void devlink_port_attrs_set(struct devlink_port *devlink_port,
|
|
struct devlink_port_attrs *attrs)
|
|
{
|
|
int ret;
|
|
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
devlink_port->attrs = *attrs;
|
|
ret = __devlink_port_attrs_set(devlink_port, attrs->flavour);
|
|
if (ret)
|
|
return;
|
|
WARN_ON(attrs->splittable && attrs->split);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_attrs_set);
|
|
|
|
/**
|
|
* devlink_port_attrs_pci_pf_set - Set PCI PF port attributes
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @controller: associated controller number for the devlink port instance
|
|
* @pf: associated PF for the devlink port instance
|
|
* @external: indicates if the port is for an external controller
|
|
*/
|
|
void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
|
|
u16 pf, bool external)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
int ret;
|
|
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
ret = __devlink_port_attrs_set(devlink_port,
|
|
DEVLINK_PORT_FLAVOUR_PCI_PF);
|
|
if (ret)
|
|
return;
|
|
attrs->pci_pf.controller = controller;
|
|
attrs->pci_pf.pf = pf;
|
|
attrs->pci_pf.external = external;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set);
|
|
|
|
/**
|
|
* devlink_port_attrs_pci_vf_set - Set PCI VF port attributes
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @controller: associated controller number for the devlink port instance
|
|
* @pf: associated PF for the devlink port instance
|
|
* @vf: associated VF of a PF for the devlink port instance
|
|
* @external: indicates if the port is for an external controller
|
|
*/
|
|
void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
|
|
u16 pf, u16 vf, bool external)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
int ret;
|
|
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
ret = __devlink_port_attrs_set(devlink_port,
|
|
DEVLINK_PORT_FLAVOUR_PCI_VF);
|
|
if (ret)
|
|
return;
|
|
attrs->pci_vf.controller = controller;
|
|
attrs->pci_vf.pf = pf;
|
|
attrs->pci_vf.vf = vf;
|
|
attrs->pci_vf.external = external;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set);
|
|
|
|
/**
|
|
* devlink_port_attrs_pci_sf_set - Set PCI SF port attributes
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @controller: associated controller number for the devlink port instance
|
|
* @pf: associated PF for the devlink port instance
|
|
* @sf: associated SF of a PF for the devlink port instance
|
|
* @external: indicates if the port is for an external controller
|
|
*/
|
|
void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller,
|
|
u16 pf, u32 sf, bool external)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
int ret;
|
|
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
ret = __devlink_port_attrs_set(devlink_port,
|
|
DEVLINK_PORT_FLAVOUR_PCI_SF);
|
|
if (ret)
|
|
return;
|
|
attrs->pci_sf.controller = controller;
|
|
attrs->pci_sf.pf = pf;
|
|
attrs->pci_sf.sf = sf;
|
|
attrs->pci_sf.external = external;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set);
|
|
|
|
/**
|
|
* devlink_port_linecard_set - Link port with a linecard
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @linecard: devlink linecard
|
|
*/
|
|
void devlink_port_linecard_set(struct devlink_port *devlink_port,
|
|
struct devlink_linecard *linecard)
|
|
{
|
|
ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port);
|
|
|
|
devlink_port->linecard = linecard;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_linecard_set);
|
|
|
|
static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
|
|
char *name, size_t len)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
int n = 0;
|
|
|
|
if (!devlink_port->attrs_set)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (attrs->flavour) {
|
|
case DEVLINK_PORT_FLAVOUR_PHYSICAL:
|
|
if (devlink_port->linecard)
|
|
n = snprintf(name, len, "l%u",
|
|
devlink_port->linecard->index);
|
|
if (n < len)
|
|
n += snprintf(name + n, len - n, "p%u",
|
|
attrs->phys.port_number);
|
|
if (n < len && attrs->split)
|
|
n += snprintf(name + n, len - n, "s%u",
|
|
attrs->phys.split_subport_number);
|
|
break;
|
|
case DEVLINK_PORT_FLAVOUR_CPU:
|
|
case DEVLINK_PORT_FLAVOUR_DSA:
|
|
case DEVLINK_PORT_FLAVOUR_UNUSED:
|
|
/* As CPU and DSA ports do not have a netdevice associated
|
|
* case should not ever happen.
|
|
*/
|
|
WARN_ON(1);
|
|
return -EINVAL;
|
|
case DEVLINK_PORT_FLAVOUR_PCI_PF:
|
|
if (attrs->pci_pf.external) {
|
|
n = snprintf(name, len, "c%u", attrs->pci_pf.controller);
|
|
if (n >= len)
|
|
return -EINVAL;
|
|
len -= n;
|
|
name += n;
|
|
}
|
|
n = snprintf(name, len, "pf%u", attrs->pci_pf.pf);
|
|
break;
|
|
case DEVLINK_PORT_FLAVOUR_PCI_VF:
|
|
if (attrs->pci_vf.external) {
|
|
n = snprintf(name, len, "c%u", attrs->pci_vf.controller);
|
|
if (n >= len)
|
|
return -EINVAL;
|
|
len -= n;
|
|
name += n;
|
|
}
|
|
n = snprintf(name, len, "pf%uvf%u",
|
|
attrs->pci_vf.pf, attrs->pci_vf.vf);
|
|
break;
|
|
case DEVLINK_PORT_FLAVOUR_PCI_SF:
|
|
if (attrs->pci_sf.external) {
|
|
n = snprintf(name, len, "c%u", attrs->pci_sf.controller);
|
|
if (n >= len)
|
|
return -EINVAL;
|
|
len -= n;
|
|
name += n;
|
|
}
|
|
n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf,
|
|
attrs->pci_sf.sf);
|
|
break;
|
|
case DEVLINK_PORT_FLAVOUR_VIRTUAL:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (n >= len)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int devlink_compat_phys_port_name_get(struct net_device *dev,
|
|
char *name, size_t len)
|
|
{
|
|
struct devlink_port *devlink_port;
|
|
|
|
/* RTNL mutex is held here which ensures that devlink_port
|
|
* instance cannot disappear in the middle. No need to take
|
|
* any devlink lock as only permanent values are accessed.
|
|
*/
|
|
ASSERT_RTNL();
|
|
|
|
devlink_port = dev->devlink_port;
|
|
if (!devlink_port)
|
|
return -EOPNOTSUPP;
|
|
|
|
return __devlink_port_phys_port_name_get(devlink_port, name, len);
|
|
}
|
|
|
|
int devlink_compat_switch_id_get(struct net_device *dev,
|
|
struct netdev_phys_item_id *ppid)
|
|
{
|
|
struct devlink_port *devlink_port;
|
|
|
|
/* Caller must hold RTNL mutex or reference to dev, which ensures that
|
|
* devlink_port instance cannot disappear in the middle. No need to take
|
|
* any devlink lock as only permanent values are accessed.
|
|
*/
|
|
devlink_port = dev->devlink_port;
|
|
if (!devlink_port || !devlink_port->switch_port)
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid));
|
|
|
|
return 0;
|
|
}
|