1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
// SPDX-License-Identifier: GPL-2.0+
#include "lan966x_main.h"
#include "lan966x_vcap_ag_api.h"
#include "vcap_api.h"
#include "vcap_api_client.h"
#define LAN966X_VCAP_CID_IS2_L0 VCAP_CID_INGRESS_STAGE2_L0 /* IS2 lookup 0 */
#define LAN966X_VCAP_CID_IS2_L1 VCAP_CID_INGRESS_STAGE2_L1 /* IS2 lookup 1 */
#define LAN966X_VCAP_CID_IS2_MAX (VCAP_CID_INGRESS_STAGE2_L2 - 1) /* IS2 Max */
#define STREAMSIZE (64 * 4)
#define LAN966X_IS2_LOOKUPS 2
static struct lan966x_vcap_inst {
enum vcap_type vtype; /* type of vcap */
int tgt_inst; /* hardware instance number */
int lookups; /* number of lookups in this vcap type */
int first_cid; /* first chain id in this vcap */
int last_cid; /* last chain id in this vcap */
int count; /* number of available addresses */
} lan966x_vcap_inst_cfg[] = {
{
.vtype = VCAP_TYPE_IS2, /* IS2-0 */
.tgt_inst = 2,
.lookups = LAN966X_IS2_LOOKUPS,
.first_cid = LAN966X_VCAP_CID_IS2_L0,
.last_cid = LAN966X_VCAP_CID_IS2_MAX,
.count = 256,
},
};
struct lan966x_vcap_cmd_cb {
struct lan966x *lan966x;
u32 instance;
};
static u32 lan966x_vcap_read_update_ctrl(const struct lan966x_vcap_cmd_cb *cb)
{
return lan_rd(cb->lan966x, VCAP_UPDATE_CTRL(cb->instance));
}
static void lan966x_vcap_wait_update(struct lan966x *lan966x, int instance)
{
const struct lan966x_vcap_cmd_cb cb = { .lan966x = lan966x,
.instance = instance };
u32 val;
readx_poll_timeout(lan966x_vcap_read_update_ctrl, &cb, val,
(val & VCAP_UPDATE_CTRL_UPDATE_SHOT) == 0, 10,
100000);
}
static void __lan966x_vcap_range_init(struct lan966x *lan966x,
struct vcap_admin *admin,
u32 addr,
u32 count)
{
lan_wr(VCAP_MV_CFG_MV_NUM_POS_SET(0) |
VCAP_MV_CFG_MV_SIZE_SET(count - 1),
lan966x, VCAP_MV_CFG(admin->tgt_inst));
lan_wr(VCAP_UPDATE_CTRL_UPDATE_CMD_SET(VCAP_CMD_INITIALIZE) |
VCAP_UPDATE_CTRL_UPDATE_ENTRY_DIS_SET(0) |
VCAP_UPDATE_CTRL_UPDATE_ACTION_DIS_SET(0) |
VCAP_UPDATE_CTRL_UPDATE_CNT_DIS_SET(0) |
VCAP_UPDATE_CTRL_UPDATE_ADDR_SET(addr) |
VCAP_UPDATE_CTRL_CLEAR_CACHE_SET(true) |
VCAP_UPDATE_CTRL_UPDATE_SHOT_SET(1),
lan966x, VCAP_UPDATE_CTRL(admin->tgt_inst));
lan966x_vcap_wait_update(lan966x, admin->tgt_inst);
}
static void lan966x_vcap_admin_free(struct vcap_admin *admin)
{
if (!admin)
return;
kfree(admin->cache.keystream);
kfree(admin->cache.maskstream);
kfree(admin->cache.actionstream);
mutex_destroy(&admin->lock);
kfree(admin);
}
static struct vcap_admin *
lan966x_vcap_admin_alloc(struct lan966x *lan966x, struct vcap_control *ctrl,
const struct lan966x_vcap_inst *cfg)
{
struct vcap_admin *admin;
admin = kzalloc(sizeof(*admin), GFP_KERNEL);
if (!admin)
return ERR_PTR(-ENOMEM);
mutex_init(&admin->lock);
INIT_LIST_HEAD(&admin->list);
INIT_LIST_HEAD(&admin->rules);
admin->vtype = cfg->vtype;
admin->vinst = 0;
admin->lookups = cfg->lookups;
admin->lookups_per_instance = cfg->lookups;
admin->first_cid = cfg->first_cid;
admin->last_cid = cfg->last_cid;
admin->cache.keystream = kzalloc(STREAMSIZE, GFP_KERNEL);
admin->cache.maskstream = kzalloc(STREAMSIZE, GFP_KERNEL);
admin->cache.actionstream = kzalloc(STREAMSIZE, GFP_KERNEL);
if (!admin->cache.keystream ||
!admin->cache.maskstream ||
!admin->cache.actionstream) {
lan966x_vcap_admin_free(admin);
return ERR_PTR(-ENOMEM);
}
return admin;
}
static void lan966x_vcap_block_init(struct lan966x *lan966x,
struct vcap_admin *admin,
struct lan966x_vcap_inst *cfg)
{
admin->first_valid_addr = 0;
admin->last_used_addr = cfg->count;
admin->last_valid_addr = cfg->count - 1;
lan_wr(VCAP_CORE_IDX_CORE_IDX_SET(0),
lan966x, VCAP_CORE_IDX(admin->tgt_inst));
lan_wr(VCAP_CORE_MAP_CORE_MAP_SET(1),
lan966x, VCAP_CORE_MAP(admin->tgt_inst));
__lan966x_vcap_range_init(lan966x, admin, admin->first_valid_addr,
admin->last_valid_addr -
admin->first_valid_addr);
}
int lan966x_vcap_init(struct lan966x *lan966x)
{
struct lan966x_vcap_inst *cfg;
struct vcap_control *ctrl;
struct vcap_admin *admin;
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
return -ENOMEM;
ctrl->vcaps = lan966x_vcaps;
ctrl->stats = &lan966x_vcap_stats;
INIT_LIST_HEAD(&ctrl->list);
for (int i = 0; i < ARRAY_SIZE(lan966x_vcap_inst_cfg); ++i) {
cfg = &lan966x_vcap_inst_cfg[i];
admin = lan966x_vcap_admin_alloc(lan966x, ctrl, cfg);
if (IS_ERR(admin))
return PTR_ERR(admin);
lan966x_vcap_block_init(lan966x, admin, cfg);
list_add_tail(&admin->list, &ctrl->list);
}
lan966x->vcap_ctrl = ctrl;
return 0;
}
void lan966x_vcap_deinit(struct lan966x *lan966x)
{
struct vcap_admin *admin, *admin_next;
struct vcap_control *ctrl;
ctrl = lan966x->vcap_ctrl;
if (!ctrl)
return;
list_for_each_entry_safe(admin, admin_next, &ctrl->list, list) {
vcap_del_rules(ctrl, admin);
list_del(&admin->list);
lan966x_vcap_admin_free(admin);
}
kfree(ctrl);
}
|
