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6#include "qedf.h"
7
8inline bool qedf_is_vport(struct qedf_ctx *qedf)
9{
10 return qedf->lport->vport != NULL;
11}
12
13
14static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
15{
16 struct fc_lport *lport;
17 struct fc_lport *base_lport;
18
19 if (!(qedf_is_vport(qedf)))
20 return NULL;
21
22 lport = qedf->lport;
23 base_lport = shost_priv(vport_to_shost(lport->vport));
24 return lport_priv(base_lport);
25}
26
27static ssize_t fcoe_mac_show(struct device *dev,
28 struct device_attribute *attr, char *buf)
29{
30 struct fc_lport *lport = shost_priv(class_to_shost(dev));
31 u32 port_id;
32 u8 lport_src_id[3];
33 u8 fcoe_mac[6];
34
35 port_id = fc_host_port_id(lport->host);
36 lport_src_id[2] = (port_id & 0x000000FF);
37 lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
38 lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
39 fc_fcoe_set_mac(fcoe_mac, lport_src_id);
40
41 return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
42}
43
44static ssize_t fka_period_show(struct device *dev,
45 struct device_attribute *attr, char *buf)
46{
47 struct fc_lport *lport = shost_priv(class_to_shost(dev));
48 struct qedf_ctx *qedf = lport_priv(lport);
49 int fka_period = -1;
50
51 if (qedf_is_vport(qedf))
52 qedf = qedf_get_base_qedf(qedf);
53
54 if (qedf->ctlr.sel_fcf)
55 fka_period = qedf->ctlr.sel_fcf->fka_period;
56
57 return scnprintf(buf, PAGE_SIZE, "%d\n", fka_period);
58}
59
60static DEVICE_ATTR_RO(fcoe_mac);
61static DEVICE_ATTR_RO(fka_period);
62
63struct device_attribute *qedf_host_attrs[] = {
64 &dev_attr_fcoe_mac,
65 &dev_attr_fka_period,
66 NULL,
67};
68
69extern const struct qed_fcoe_ops *qed_ops;
70
71void qedf_capture_grc_dump(struct qedf_ctx *qedf)
72{
73 struct qedf_ctx *base_qedf;
74
75
76 if (qedf_is_vport(qedf))
77 base_qedf = qedf_get_base_qedf(qedf);
78 else
79 base_qedf = qedf;
80
81 if (test_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags)) {
82 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_INFO,
83 "GRC Dump already captured.\n");
84 return;
85 }
86
87
88 qedf_get_grc_dump(base_qedf->cdev, qed_ops->common,
89 &base_qedf->grcdump, &base_qedf->grcdump_size);
90 QEDF_ERR(&(base_qedf->dbg_ctx), "GRC Dump captured.\n");
91 set_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags);
92 qedf_uevent_emit(base_qedf->lport->host, QEDF_UEVENT_CODE_GRCDUMP,
93 NULL);
94}
95
96static ssize_t
97qedf_sysfs_read_grcdump(struct file *filep, struct kobject *kobj,
98 struct bin_attribute *ba, char *buf, loff_t off,
99 size_t count)
100{
101 ssize_t ret = 0;
102 struct fc_lport *lport = shost_priv(dev_to_shost(container_of(kobj,
103 struct device, kobj)));
104 struct qedf_ctx *qedf = lport_priv(lport);
105
106 if (test_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags)) {
107 ret = memory_read_from_buffer(buf, count, &off,
108 qedf->grcdump, qedf->grcdump_size);
109 } else {
110 QEDF_ERR(&(qedf->dbg_ctx), "GRC Dump not captured!\n");
111 }
112
113 return ret;
114}
115
116static ssize_t
117qedf_sysfs_write_grcdump(struct file *filep, struct kobject *kobj,
118 struct bin_attribute *ba, char *buf, loff_t off,
119 size_t count)
120{
121 struct fc_lport *lport = NULL;
122 struct qedf_ctx *qedf = NULL;
123 long reading;
124 int ret = 0;
125 char msg[40];
126
127 if (off != 0)
128 return ret;
129
130
131 lport = shost_priv(dev_to_shost(container_of(kobj,
132 struct device, kobj)));
133 qedf = lport_priv(lport);
134
135 buf[1] = 0;
136 ret = kstrtol(buf, 10, &reading);
137 if (ret) {
138 QEDF_ERR(&(qedf->dbg_ctx), "Invalid input, err(%d)\n", ret);
139 return ret;
140 }
141
142 memset(msg, 0, sizeof(msg));
143 switch (reading) {
144 case 0:
145 memset(qedf->grcdump, 0, qedf->grcdump_size);
146 clear_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags);
147 break;
148 case 1:
149 qedf_capture_grc_dump(qedf);
150 break;
151 }
152
153 return count;
154}
155
156static struct bin_attribute sysfs_grcdump_attr = {
157 .attr = {
158 .name = "grcdump",
159 .mode = S_IRUSR | S_IWUSR,
160 },
161 .size = 0,
162 .read = qedf_sysfs_read_grcdump,
163 .write = qedf_sysfs_write_grcdump,
164};
165
166static struct sysfs_bin_attrs bin_file_entries[] = {
167 {"grcdump", &sysfs_grcdump_attr},
168 {NULL},
169};
170
171void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf)
172{
173 qedf_create_sysfs_attr(qedf->lport->host, bin_file_entries);
174}
175
176void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf)
177{
178 qedf_remove_sysfs_attr(qedf->lport->host, bin_file_entries);
179}
180
