2 * QLogic FCoE Offload Driver
3 * Copyright (c) 2016-2018 Cavium Inc.
5 * This software is available under the terms of the GNU General Public License
6 * (GPL) Version 2, available from the file COPYING in the main directory of
11 inline bool qedf_is_vport(struct qedf_ctx *qedf)
13 return qedf->lport->vport != NULL;
16 /* Get base qedf for physical port from vport */
17 static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
19 struct fc_lport *lport;
20 struct fc_lport *base_lport;
22 if (!(qedf_is_vport(qedf)))
26 base_lport = shost_priv(vport_to_shost(lport->vport));
27 return lport_priv(base_lport);
31 qedf_fcoe_mac_show(struct device *dev,
32 struct device_attribute *attr, char *buf)
34 struct fc_lport *lport = shost_priv(class_to_shost(dev));
39 port_id = fc_host_port_id(lport->host);
40 lport_src_id[2] = (port_id & 0x000000FF);
41 lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
42 lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
43 fc_fcoe_set_mac(fcoe_mac, lport_src_id);
45 return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
49 qedf_fka_period_show(struct device *dev,
50 struct device_attribute *attr, char *buf)
52 struct fc_lport *lport = shost_priv(class_to_shost(dev));
53 struct qedf_ctx *qedf = lport_priv(lport);
56 if (qedf_is_vport(qedf))
57 qedf = qedf_get_base_qedf(qedf);
59 if (qedf->ctlr.sel_fcf)
60 fka_period = qedf->ctlr.sel_fcf->fka_period;
62 return scnprintf(buf, PAGE_SIZE, "%d\n", fka_period);
65 static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL);
66 static DEVICE_ATTR(fka_period, S_IRUGO, qedf_fka_period_show, NULL);
68 struct device_attribute *qedf_host_attrs[] = {
74 extern const struct qed_fcoe_ops *qed_ops;
76 void qedf_capture_grc_dump(struct qedf_ctx *qedf)
78 struct qedf_ctx *base_qedf;
80 /* Make sure we use the base qedf to take the GRC dump */
81 if (qedf_is_vport(qedf))
82 base_qedf = qedf_get_base_qedf(qedf);
86 if (test_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags)) {
87 QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_INFO,
88 "GRC Dump already captured.\n");
93 qedf_get_grc_dump(base_qedf->cdev, qed_ops->common,
94 &base_qedf->grcdump, &base_qedf->grcdump_size);
95 QEDF_ERR(&(base_qedf->dbg_ctx), "GRC Dump captured.\n");
96 set_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags);
97 qedf_uevent_emit(base_qedf->lport->host, QEDF_UEVENT_CODE_GRCDUMP,
102 qedf_sysfs_read_grcdump(struct file *filep, struct kobject *kobj,
103 struct bin_attribute *ba, char *buf, loff_t off,
107 struct fc_lport *lport = shost_priv(dev_to_shost(container_of(kobj,
108 struct device, kobj)));
109 struct qedf_ctx *qedf = lport_priv(lport);
111 if (test_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags)) {
112 ret = memory_read_from_buffer(buf, count, &off,
113 qedf->grcdump, qedf->grcdump_size);
115 QEDF_ERR(&(qedf->dbg_ctx), "GRC Dump not captured!\n");
122 qedf_sysfs_write_grcdump(struct file *filep, struct kobject *kobj,
123 struct bin_attribute *ba, char *buf, loff_t off,
126 struct fc_lport *lport = NULL;
127 struct qedf_ctx *qedf = NULL;
136 lport = shost_priv(dev_to_shost(container_of(kobj,
137 struct device, kobj)));
138 qedf = lport_priv(lport);
141 ret = kstrtol(buf, 10, &reading);
143 QEDF_ERR(&(qedf->dbg_ctx), "Invalid input, err(%d)\n", ret);
147 memset(msg, 0, sizeof(msg));
150 memset(qedf->grcdump, 0, qedf->grcdump_size);
151 clear_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags);
154 qedf_capture_grc_dump(qedf);
161 static struct bin_attribute sysfs_grcdump_attr = {
164 .mode = S_IRUSR | S_IWUSR,
167 .read = qedf_sysfs_read_grcdump,
168 .write = qedf_sysfs_write_grcdump,
171 static struct sysfs_bin_attrs bin_file_entries[] = {
172 {"grcdump", &sysfs_grcdump_attr},
176 void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf)
178 qedf_create_sysfs_attr(qedf->lport->host, bin_file_entries);
181 void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf)
183 qedf_remove_sysfs_attr(qedf->lport->host, bin_file_entries);