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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2018, Intel Corporation. */
3
4#ifndef _ICE_SWITCH_H_
5#define _ICE_SWITCH_H_
6
7#include "ice_common.h"
8
9#define ICE_SW_CFG_MAX_BUF_LEN 2048
10#define ICE_DFLT_VSI_INVAL 0xff
11#define ICE_VSI_INVAL_ID 0xffff
12
13/* VSI context structure for add/get/update/free operations */
14struct ice_vsi_ctx {
15 u16 vsi_num;
16 u16 vsis_allocd;
17 u16 vsis_unallocated;
18 u16 flags;
19 struct ice_aqc_vsi_props info;
20 struct ice_sched_vsi_info sched;
21 u8 alloc_from_pool;
22 u8 vf_num;
23};
24
25enum ice_sw_fwd_act_type {
26 ICE_FWD_TO_VSI = 0,
27 ICE_FWD_TO_VSI_LIST, /* Do not use this when adding filter */
28 ICE_FWD_TO_Q,
29 ICE_FWD_TO_QGRP,
30 ICE_DROP_PACKET,
31 ICE_INVAL_ACT
32};
33
34/* Switch recipe ID enum values are specific to hardware */
35enum ice_sw_lkup_type {
36 ICE_SW_LKUP_ETHERTYPE = 0,
37 ICE_SW_LKUP_MAC = 1,
38 ICE_SW_LKUP_MAC_VLAN = 2,
39 ICE_SW_LKUP_PROMISC = 3,
40 ICE_SW_LKUP_VLAN = 4,
41 ICE_SW_LKUP_DFLT = 5,
42 ICE_SW_LKUP_ETHERTYPE_MAC = 8,
43 ICE_SW_LKUP_PROMISC_VLAN = 9,
44 ICE_SW_LKUP_LAST
45};
46
47/* type of filter src id */
48enum ice_src_id {
49 ICE_SRC_ID_UNKNOWN = 0,
50 ICE_SRC_ID_VSI,
51 ICE_SRC_ID_QUEUE,
52 ICE_SRC_ID_LPORT,
53};
54
55struct ice_fltr_info {
56 /* Look up information: how to look up packet */
57 enum ice_sw_lkup_type lkup_type;
58 /* Forward action: filter action to do after lookup */
59 enum ice_sw_fwd_act_type fltr_act;
60 /* rule ID returned by firmware once filter rule is created */
61 u16 fltr_rule_id;
62 u16 flag;
63#define ICE_FLTR_RX BIT(0)
64#define ICE_FLTR_TX BIT(1)
65#define ICE_FLTR_TX_RX (ICE_FLTR_RX | ICE_FLTR_TX)
66
67 /* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
68 u16 src;
69 enum ice_src_id src_id;
70
71 union {
72 struct {
73 u8 mac_addr[ETH_ALEN];
74 } mac;
75 struct {
76 u8 mac_addr[ETH_ALEN];
77 u16 vlan_id;
78 } mac_vlan;
79 struct {
80 u16 vlan_id;
81 } vlan;
82 /* Set lkup_type as ICE_SW_LKUP_ETHERTYPE
83 * if just using ethertype as filter. Set lkup_type as
84 * ICE_SW_LKUP_ETHERTYPE_MAC if MAC also needs to be
85 * passed in as filter.
86 */
87 struct {
88 u16 ethertype;
89 u8 mac_addr[ETH_ALEN]; /* optional */
90 } ethertype_mac;
91 } l_data; /* Make sure to zero out the memory of l_data before using
92 * it or only set the data associated with lookup match
93 * rest everything should be zero
94 */
95
96 /* Depending on filter action */
97 union {
98 /* queue id in case of ICE_FWD_TO_Q and starting
99 * queue id in case of ICE_FWD_TO_QGRP.
100 */
101 u16 q_id:11;
102 u16 hw_vsi_id:10;
103 u16 vsi_list_id:10;
104 } fwd_id;
105
106 /* Sw VSI handle */
107 u16 vsi_handle;
108
109 /* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
110 * determines the range of queues the packet needs to be forwarded to.
111 * Note that qgrp_size must be set to a power of 2.
112 */
113 u8 qgrp_size;
114
115 /* Rule creations populate these indicators basing on the switch type */
116 u8 lb_en; /* Indicate if packet can be looped back */
117 u8 lan_en; /* Indicate if packet can be forwarded to the uplink */
118};
119
120struct ice_sw_recipe {
121 struct list_head l_entry;
122
123 /* To protect modification of filt_rule list
124 * defined below
125 */
126 struct mutex filt_rule_lock;
127
128 /* List of type ice_fltr_mgmt_list_entry */
129 struct list_head filt_rules;
130 struct list_head filt_replay_rules;
131
132 /* linked list of type recipe_list_entry */
133 struct list_head rg_list;
134 /* linked list of type ice_sw_fv_list_entry*/
135 struct list_head fv_list;
136 struct ice_aqc_recipe_data_elem *r_buf;
137 u8 recp_count;
138 u8 root_rid;
139 u8 num_profs;
140 u8 *prof_ids;
141
142 /* recipe bitmap: what all recipes makes this recipe */
143 DECLARE_BITMAP(r_bitmap, ICE_MAX_NUM_RECIPES);
144};
145
146/* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list id */
147struct ice_vsi_list_map_info {
148 struct list_head list_entry;
149 DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
150 u16 vsi_list_id;
151 /* counter to track how many rules are reusing this VSI list */
152 u16 ref_cnt;
153};
154
155struct ice_fltr_list_entry {
156 struct list_head list_entry;
157 enum ice_status status;
158 struct ice_fltr_info fltr_info;
159};
160
161/* This defines an entry in the list that maintains MAC or VLAN membership
162 * to HW list mapping, since multiple VSIs can subscribe to the same MAC or
163 * VLAN. As an optimization the VSI list should be created only when a
164 * second VSI becomes a subscriber to the same MAC address. VSI lists are always
165 * used for VLAN membership.
166 */
167struct ice_fltr_mgmt_list_entry {
168 /* back pointer to VSI list id to VSI list mapping */
169 struct ice_vsi_list_map_info *vsi_list_info;
170 u16 vsi_count;
171#define ICE_INVAL_LG_ACT_INDEX 0xffff
172 u16 lg_act_idx;
173#define ICE_INVAL_SW_MARKER_ID 0xffff
174 u16 sw_marker_id;
175 struct list_head list_entry;
176 struct ice_fltr_info fltr_info;
177#define ICE_INVAL_COUNTER_ID 0xff
178 u8 counter_index;
179};
180
181/* VSI related commands */
182enum ice_status
183ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
184 struct ice_sq_cd *cd);
185enum ice_status
186ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
187 bool keep_vsi_alloc, struct ice_sq_cd *cd);
188enum ice_status
189ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
190 struct ice_sq_cd *cd);
191bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
192struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle);
193void ice_clear_all_vsi_ctx(struct ice_hw *hw);
194/* Switch config */
195enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw);
196
197/* Switch/bridge related commands */
198enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw);
199enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
200enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
201void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle);
202enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
203enum ice_status ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
204enum ice_status
205ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction);
206
207enum ice_status ice_init_def_sw_recp(struct ice_hw *hw);
208u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);
209bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
210
211enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle);
212void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw);
213
214#endif /* _ICE_SWITCH_H_ */