1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2023 Advanced Micro Devices, Inc */
3
4#include <linux/pci.h>
5
6#include "core.h"
7
8static struct dentry *pdsc_dir;
9
10void pdsc_debugfs_create(void)
11{
12 pdsc_dir = debugfs_create_dir(PDS_CORE_DRV_NAME, NULL);
13}
14
15void pdsc_debugfs_destroy(void)
16{
17 debugfs_remove_recursive(dentry: pdsc_dir);
18}
19
20void pdsc_debugfs_add_dev(struct pdsc *pdsc)
21{
22 pdsc->dentry = debugfs_create_dir(name: pci_name(pdev: pdsc->pdev), parent: pdsc_dir);
23
24 debugfs_create_ulong(name: "state", mode: 0400, parent: pdsc->dentry, value: &pdsc->state);
25}
26
27void pdsc_debugfs_del_dev(struct pdsc *pdsc)
28{
29 debugfs_remove_recursive(dentry: pdsc->dentry);
30 pdsc->dentry = NULL;
31}
32
33static int identity_show(struct seq_file *seq, void *v)
34{
35 struct pds_core_dev_identity *ident;
36 struct pdsc *pdsc = seq->private;
37 int vt;
38
39 ident = &pdsc->dev_ident;
40
41 seq_printf(m: seq, fmt: "fw_heartbeat: 0x%x\n",
42 ioread32(&pdsc->info_regs->fw_heartbeat));
43
44 seq_printf(m: seq, fmt: "nlifs: %d\n",
45 le32_to_cpu(ident->nlifs));
46 seq_printf(m: seq, fmt: "nintrs: %d\n",
47 le32_to_cpu(ident->nintrs));
48 seq_printf(m: seq, fmt: "ndbpgs_per_lif: %d\n",
49 le32_to_cpu(ident->ndbpgs_per_lif));
50 seq_printf(m: seq, fmt: "intr_coal_mult: %d\n",
51 le32_to_cpu(ident->intr_coal_mult));
52 seq_printf(m: seq, fmt: "intr_coal_div: %d\n",
53 le32_to_cpu(ident->intr_coal_div));
54
55 seq_puts(m: seq, s: "vif_types: ");
56 for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++)
57 seq_printf(m: seq, fmt: "%d ",
58 le16_to_cpu(pdsc->dev_ident.vif_types[vt]));
59 seq_puts(m: seq, s: "\n");
60
61 return 0;
62}
63DEFINE_SHOW_ATTRIBUTE(identity);
64
65void pdsc_debugfs_add_ident(struct pdsc *pdsc)
66{
67 /* This file will already exist in the reset flow */
68 if (debugfs_lookup(name: "identity", parent: pdsc->dentry))
69 return;
70
71 debugfs_create_file("identity", 0400, pdsc->dentry,
72 pdsc, &identity_fops);
73}
74
75static int viftype_show(struct seq_file *seq, void *v)
76{
77 struct pdsc *pdsc = seq->private;
78 int vt;
79
80 for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++) {
81 if (!pdsc->viftype_status[vt].name)
82 continue;
83
84 seq_printf(m: seq, fmt: "%s\t%d supported %d enabled\n",
85 pdsc->viftype_status[vt].name,
86 pdsc->viftype_status[vt].supported,
87 pdsc->viftype_status[vt].enabled);
88 }
89 return 0;
90}
91DEFINE_SHOW_ATTRIBUTE(viftype);
92
93void pdsc_debugfs_add_viftype(struct pdsc *pdsc)
94{
95 debugfs_create_file("viftypes", 0400, pdsc->dentry,
96 pdsc, &viftype_fops);
97}
98
99static const struct debugfs_reg32 intr_ctrl_regs[] = {
100 { .name = "coal_init", .offset = 0, },
101 { .name = "mask", .offset = 4, },
102 { .name = "credits", .offset = 8, },
103 { .name = "mask_on_assert", .offset = 12, },
104 { .name = "coal_timer", .offset = 16, },
105};
106
107void pdsc_debugfs_add_qcq(struct pdsc *pdsc, struct pdsc_qcq *qcq)
108{
109 struct dentry *qcq_dentry, *q_dentry, *cq_dentry, *intr_dentry;
110 struct debugfs_regset32 *intr_ctrl_regset;
111 struct pdsc_queue *q = &qcq->q;
112 struct pdsc_cq *cq = &qcq->cq;
113
114 qcq_dentry = debugfs_create_dir(name: q->name, parent: pdsc->dentry);
115 if (IS_ERR(ptr: qcq_dentry))
116 return;
117 qcq->dentry = qcq_dentry;
118
119 debugfs_create_x64(name: "q_base_pa", mode: 0400, parent: qcq_dentry, value: &qcq->q_base_pa);
120 debugfs_create_x32(name: "q_size", mode: 0400, parent: qcq_dentry, value: &qcq->q_size);
121 debugfs_create_x64(name: "cq_base_pa", mode: 0400, parent: qcq_dentry, value: &qcq->cq_base_pa);
122 debugfs_create_x32(name: "cq_size", mode: 0400, parent: qcq_dentry, value: &qcq->cq_size);
123 debugfs_create_x32(name: "accum_work", mode: 0400, parent: qcq_dentry, value: &qcq->accum_work);
124
125 q_dentry = debugfs_create_dir(name: "q", parent: qcq->dentry);
126 if (IS_ERR(ptr: q_dentry))
127 return;
128
129 debugfs_create_u32(name: "index", mode: 0400, parent: q_dentry, value: &q->index);
130 debugfs_create_u32(name: "num_descs", mode: 0400, parent: q_dentry, value: &q->num_descs);
131 debugfs_create_u32(name: "desc_size", mode: 0400, parent: q_dentry, value: &q->desc_size);
132 debugfs_create_u32(name: "pid", mode: 0400, parent: q_dentry, value: &q->pid);
133
134 debugfs_create_u16(name: "tail", mode: 0400, parent: q_dentry, value: &q->tail_idx);
135 debugfs_create_u16(name: "head", mode: 0400, parent: q_dentry, value: &q->head_idx);
136
137 cq_dentry = debugfs_create_dir(name: "cq", parent: qcq->dentry);
138 if (IS_ERR(ptr: cq_dentry))
139 return;
140
141 debugfs_create_x64(name: "base_pa", mode: 0400, parent: cq_dentry, value: &cq->base_pa);
142 debugfs_create_u32(name: "num_descs", mode: 0400, parent: cq_dentry, value: &cq->num_descs);
143 debugfs_create_u32(name: "desc_size", mode: 0400, parent: cq_dentry, value: &cq->desc_size);
144 debugfs_create_bool(name: "done_color", mode: 0400, parent: cq_dentry, value: &cq->done_color);
145 debugfs_create_u16(name: "tail", mode: 0400, parent: cq_dentry, value: &cq->tail_idx);
146
147 if (qcq->flags & PDS_CORE_QCQ_F_INTR) {
148 struct pdsc_intr_info *intr = &pdsc->intr_info[qcq->intx];
149
150 intr_dentry = debugfs_create_dir(name: "intr", parent: qcq->dentry);
151 if (IS_ERR(ptr: intr_dentry))
152 return;
153
154 debugfs_create_u32(name: "index", mode: 0400, parent: intr_dentry, value: &intr->index);
155 debugfs_create_u32(name: "vector", mode: 0400, parent: intr_dentry, value: &intr->vector);
156
157 intr_ctrl_regset = devm_kzalloc(dev: pdsc->dev,
158 size: sizeof(*intr_ctrl_regset),
159 GFP_KERNEL);
160 if (!intr_ctrl_regset)
161 return;
162 intr_ctrl_regset->regs = intr_ctrl_regs;
163 intr_ctrl_regset->nregs = ARRAY_SIZE(intr_ctrl_regs);
164 intr_ctrl_regset->base = &pdsc->intr_ctrl[intr->index];
165
166 debugfs_create_regset32(name: "intr_ctrl", mode: 0400, parent: intr_dentry,
167 regset: intr_ctrl_regset);
168 }
169};
170
171void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq)
172{
173 debugfs_remove_recursive(dentry: qcq->dentry);
174 qcq->dentry = NULL;
175}
176

source code of linux/drivers/net/ethernet/amd/pds_core/debugfs.c