ice_lag.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (C) 2018-2021, Intel Corporation. */
 3
 4#ifndef _ICE_LAG_H_
 5#define _ICE_LAG_H_
 6
 7#include <linux/netdevice.h>
 8
 9/* LAG roles for netdev */
10enum ice_lag_role {
11	ICE_LAG_NONE,
12	ICE_LAG_PRIMARY,
13	ICE_LAG_BACKUP,
14	ICE_LAG_UNSET
15};
16
17#define ICE_LAG_INVALID_PORT		0xFF
18#define ICE_LAGP_IDX			0
19#define ICE_LAGS_IDX			1
20#define ICE_LAGP_M			0x1
21#define ICE_LAGS_M			0x2
22
23#define ICE_LAG_RESET_RETRIES		5
24#define ICE_SW_DEFAULT_PROFILE		0
25#define ICE_FV_PROT_MDID		255
26#define ICE_LP_EXT_BUF_OFFSET		32
27
28struct ice_pf;
29struct ice_vf;
30
31struct ice_lag_netdev_list {
32	struct list_head node;
33	struct net_device *netdev;
34};
35
36/* LAG info struct */
37struct ice_lag {
38	struct ice_pf *pf; /* backlink to PF struct */
39	struct net_device *netdev; /* this PF's netdev */
40	struct net_device *upper_netdev; /* upper bonding netdev */
41	struct list_head *netdev_head;
42	struct notifier_block notif_block;
43	s32 bond_mode;
44	u16 bond_swid; /* swid for primary interface */
45	u8 active_port; /* lport value for the current active port */
46	u8 bonded:1; /* currently bonded */
47	u8 primary:1; /* this is primary */
48	u8 bond_aa:1; /* is this bond active-active */
49	u8 need_fltr_cfg:1; /* fltrs for A/A bond still need to be make */
50	u8 port_bitmap:2; /* bitmap of active ports */
51	u8 bond_lport_pri; /* lport values for primary PF */
52	u8 bond_lport_sec; /* lport values for secondary PF */
53
54	/* q_home keeps track of which interface the q is currently on */
55	u8 q_home[ICE_MAX_SRIOV_VFS][ICE_MAX_RSS_QS_PER_VF];
56
57	/* placeholder VSI for hanging VF queues from on secondary interface */
58	struct ice_vsi *sec_vf[ICE_MAX_SRIOV_VFS];
59
60	u16 pf_recipe;
61	u16 lport_recipe;
62	u16 act_act_recipe;
63	u16 pf_rx_rule_id;
64	u16 pf_tx_rule_id;
65	u16 cp_rule_idx;
66	u16 lport_rule_idx;
67	u16 act_act_rule_idx;
68	u8 role;
69};
70
71/* LAG workqueue struct */
72struct ice_lag_work {
73	struct work_struct lag_task;
74	struct ice_lag_netdev_list netdev_list;
75	struct ice_lag *lag;
76	unsigned long event;
77	struct net_device *event_netdev;
78	union {
79		struct netdev_notifier_changeupper_info changeupper_info;
80		struct netdev_notifier_bonding_info bonding_info;
81		struct netdev_notifier_info notifier_info;
82	} info;
83};
84
85void ice_lag_aa_failover(struct ice_lag *lag, u8 dest, struct ice_pf *e_pf);
86int ice_init_lag(struct ice_pf *pf);
87void ice_deinit_lag(struct ice_pf *pf);
88void ice_lag_rebuild(struct ice_pf *pf);
89bool ice_lag_is_switchdev_running(struct ice_pf *pf);
90void ice_lag_move_vf_nodes_cfg(struct ice_lag *lag, u8 src_prt, u8 dst_prt);
91u8 ice_lag_prepare_vf_reset(struct ice_lag *lag);
92void ice_lag_complete_vf_reset(struct ice_lag *lag, u8 act_prt);
93#endif /* _ICE_LAG_H_ */