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7#include "otx2_common.h"
8
9
10static int otx2_dl_mcam_count_validate(struct devlink *devlink, u32 id,
11 union devlink_param_value val,
12 struct netlink_ext_ack *extack)
13{
14 struct otx2_devlink *otx2_dl = devlink_priv(devlink);
15 struct otx2_nic *pfvf = otx2_dl->pfvf;
16 struct otx2_flow_config *flow_cfg;
17
18 if (!pfvf->flow_cfg) {
19 NL_SET_ERR_MSG_MOD(extack,
20 "pfvf->flow_cfg not initialized");
21 return -EINVAL;
22 }
23
24 flow_cfg = pfvf->flow_cfg;
25 if (flow_cfg && flow_cfg->nr_flows) {
26 NL_SET_ERR_MSG_MOD(extack,
27 "Cannot modify count when there are active rules");
28 return -EINVAL;
29 }
30
31 return 0;
32}
33
34static int otx2_dl_mcam_count_set(struct devlink *devlink, u32 id,
35 struct devlink_param_gset_ctx *ctx)
36{
37 struct otx2_devlink *otx2_dl = devlink_priv(devlink);
38 struct otx2_nic *pfvf = otx2_dl->pfvf;
39
40 if (!pfvf->flow_cfg)
41 return 0;
42
43 otx2_alloc_mcam_entries(pfvf, ctx->val.vu16);
44 otx2_tc_alloc_ent_bitmap(pfvf);
45
46 return 0;
47}
48
49static int otx2_dl_mcam_count_get(struct devlink *devlink, u32 id,
50 struct devlink_param_gset_ctx *ctx)
51{
52 struct otx2_devlink *otx2_dl = devlink_priv(devlink);
53 struct otx2_nic *pfvf = otx2_dl->pfvf;
54 struct otx2_flow_config *flow_cfg;
55
56 if (!pfvf->flow_cfg) {
57 ctx->val.vu16 = 0;
58 return 0;
59 }
60
61 flow_cfg = pfvf->flow_cfg;
62 ctx->val.vu16 = flow_cfg->max_flows;
63
64 return 0;
65}
66
67enum otx2_dl_param_id {
68 OTX2_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
69 OTX2_DEVLINK_PARAM_ID_MCAM_COUNT,
70};
71
72static const struct devlink_param otx2_dl_params[] = {
73 DEVLINK_PARAM_DRIVER(OTX2_DEVLINK_PARAM_ID_MCAM_COUNT,
74 "mcam_count", DEVLINK_PARAM_TYPE_U16,
75 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
76 otx2_dl_mcam_count_get, otx2_dl_mcam_count_set,
77 otx2_dl_mcam_count_validate),
78};
79
80
81static int otx2_devlink_info_get(struct devlink *devlink,
82 struct devlink_info_req *req,
83 struct netlink_ext_ack *extack)
84{
85 struct otx2_devlink *otx2_dl = devlink_priv(devlink);
86 struct otx2_nic *pfvf = otx2_dl->pfvf;
87
88 if (is_otx2_vf(pfvf->pcifunc))
89 return devlink_info_driver_name_put(req, "rvu_nicvf");
90
91 return devlink_info_driver_name_put(req, "rvu_nicpf");
92}
93
94static const struct devlink_ops otx2_devlink_ops = {
95 .info_get = otx2_devlink_info_get,
96};
97
98int otx2_register_dl(struct otx2_nic *pfvf)
99{
100 struct otx2_devlink *otx2_dl;
101 struct devlink *dl;
102 int err;
103
104 dl = devlink_alloc(&otx2_devlink_ops,
105 sizeof(struct otx2_devlink), pfvf->dev);
106 if (!dl) {
107 dev_warn(pfvf->dev, "devlink_alloc failed\n");
108 return -ENOMEM;
109 }
110
111 otx2_dl = devlink_priv(dl);
112 otx2_dl->dl = dl;
113 otx2_dl->pfvf = pfvf;
114 pfvf->dl = otx2_dl;
115
116 err = devlink_params_register(dl, otx2_dl_params,
117 ARRAY_SIZE(otx2_dl_params));
118 if (err) {
119 dev_err(pfvf->dev,
120 "devlink params register failed with error %d", err);
121 goto err_dl;
122 }
123
124 devlink_register(dl);
125 return 0;
126
127err_dl:
128 devlink_free(dl);
129 return err;
130}
131
132void otx2_unregister_dl(struct otx2_nic *pfvf)
133{
134 struct otx2_devlink *otx2_dl = pfvf->dl;
135 struct devlink *dl = otx2_dl->dl;
136
137 devlink_unregister(dl);
138 devlink_params_unregister(dl, otx2_dl_params,
139 ARRAY_SIZE(otx2_dl_params));
140 devlink_free(dl);
141}
142
