/*
- * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
+ * Copyright (c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
* Copyright (c) 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
#include <linux/ctype.h>
#include "qib.h"
-
-/**
- * qib_parse_ushort - parse an unsigned short value in an arbitrary base
- * @str: the string containing the number
- * @valp: where to put the result
- *
- * Returns the number of bytes consumed, or negative value on error.
- */
-static int qib_parse_ushort(const char *str, unsigned short *valp)
-{
- unsigned long val;
- char *end;
- int ret;
-
- if (!isdigit(str[0])) {
- ret = -EINVAL;
- goto bail;
- }
-
- val = simple_strtoul(str, &end, 0);
-
- if (val > 0xffff) {
- ret = -EINVAL;
- goto bail;
- }
-
- *valp = val;
-
- ret = end + 1 - str;
- if (ret == 0)
- ret = -EINVAL;
-
-bail:
- return ret;
-}
+#include "qib_mad.h"
/* start of per-port functions */
/*
int ret;
u16 val;
- ret = qib_parse_ushort(buf, &val);
+ ret = kstrtou16(buf, 0, &val);
+ if (ret) {
+ qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
+ return ret;
+ }
/*
* Set the "intentional" heartbeat enable per either of
* because entering loopback mode overrides it and automatically
* disables heartbeat.
*/
- if (ret >= 0)
- ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
- if (ret < 0)
- qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
+ ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
return ret < 0 ? ret : count;
}
int ret;
u16 val;
- ret = qib_parse_ushort(buf, &val);
- if (ret > 0)
- qib_set_led_override(ppd, val);
- else
+ ret = kstrtou16(buf, 0, &val);
+ if (ret) {
qib_dev_err(dd, "attempt to set invalid LED override\n");
- return ret < 0 ? ret : count;
+ return ret;
+ }
+
+ qib_set_led_override(ppd, val);
+ return count;
}
static ssize_t show_status(struct qib_pportdata *ppd, char *buf)
NULL
};
+/*
+ * Start of per-port congestion control structures and support code
+ */
+
+/*
+ * Congestion control table size followed by table entries
+ */
+static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t count)
+{
+ int ret;
+ struct qib_pportdata *ppd =
+ container_of(kobj, struct qib_pportdata, pport_cc_kobj);
+
+ if (!qib_cc_table_size || !ppd->ccti_entries_shadow)
+ return -EINVAL;
+
+ ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow)
+ + sizeof(__be16);
+
+ if (pos > ret)
+ return -EINVAL;
+
+ if (count > ret - pos)
+ count = ret - pos;
+
+ if (!count)
+ return count;
+
+ spin_lock(&ppd->cc_shadow_lock);
+ memcpy(buf, ppd->ccti_entries_shadow, count);
+ spin_unlock(&ppd->cc_shadow_lock);
+
+ return count;
+}
+
+static void qib_port_release(struct kobject *kobj)
+{
+ /* nothing to do since memory is freed by qib_free_devdata() */
+}
+
+static struct kobj_type qib_port_cc_ktype = {
+ .release = qib_port_release,
+};
+
+static struct bin_attribute cc_table_bin_attr = {
+ .attr = {.name = "cc_table_bin", .mode = 0444},
+ .read = read_cc_table_bin,
+ .size = PAGE_SIZE,
+};
+
+/*
+ * Congestion settings: port control, control map and an array of 16
+ * entries for the congestion entries - increase, timer, event log
+ * trigger threshold and the minimum injection rate delay.
+ */
+static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t count)
+{
+ int ret;
+ struct qib_pportdata *ppd =
+ container_of(kobj, struct qib_pportdata, pport_cc_kobj);
+
+ if (!qib_cc_table_size || !ppd->congestion_entries_shadow)
+ return -EINVAL;
+
+ ret = sizeof(struct ib_cc_congestion_setting_attr_shadow);
+
+ if (pos > ret)
+ return -EINVAL;
+ if (count > ret - pos)
+ count = ret - pos;
+
+ if (!count)
+ return count;
+
+ spin_lock(&ppd->cc_shadow_lock);
+ memcpy(buf, ppd->congestion_entries_shadow, count);
+ spin_unlock(&ppd->cc_shadow_lock);
+
+ return count;
+}
+
+static struct bin_attribute cc_setting_bin_attr = {
+ .attr = {.name = "cc_settings_bin", .mode = 0444},
+ .read = read_cc_setting_bin,
+ .size = PAGE_SIZE,
+};
+
+
static ssize_t qib_portattr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
return pattr->store(ppd, buf, len);
}
-static void qib_port_release(struct kobject *kobj)
-{
- /* nothing to do since memory is freed by qib_free_devdata() */
-}
static const struct sysfs_ops qib_port_ops = {
.show = qib_portattr_show,
struct qib_pportdata *ppd =
container_of(kobj, struct qib_pportdata, diagc_kobj);
struct qib_ibport *qibp = &ppd->ibport_data;
- char *endp;
- long val = simple_strtol(buf, &endp, 0);
-
- if (val < 0 || endp == buf)
- return -EINVAL;
+ u32 val;
+ int ret;
+ ret = kstrtou32(buf, 0, &val);
+ if (ret)
+ return ret;
*(u32 *)((char *) qibp + dattr->counter) = val;
return size;
}
int ret;
if (!port_num || port_num > dd->num_pports) {
- qib_dev_err(dd, "Skipping infiniband class with "
- "invalid port %u\n", port_num);
+ qib_dev_err(dd,
+ "Skipping infiniband class with invalid port %u\n",
+ port_num);
ret = -ENODEV;
goto bail;
}
ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
"linkcontrol");
if (ret) {
- qib_dev_err(dd, "Skipping linkcontrol sysfs info, "
- "(err %d) port %u\n", ret, port_num);
+ qib_dev_err(dd,
+ "Skipping linkcontrol sysfs info, (err %d) port %u\n",
+ ret, port_num);
goto bail;
}
kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);
ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
"sl2vl");
if (ret) {
- qib_dev_err(dd, "Skipping sl2vl sysfs info, "
- "(err %d) port %u\n", ret, port_num);
- goto bail_sl;
+ qib_dev_err(dd,
+ "Skipping sl2vl sysfs info, (err %d) port %u\n",
+ ret, port_num);
+ goto bail_link;
}
kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);
ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj,
"diag_counters");
if (ret) {
- qib_dev_err(dd, "Skipping diag_counters sysfs info, "
- "(err %d) port %u\n", ret, port_num);
- goto bail_diagc;
+ qib_dev_err(dd,
+ "Skipping diag_counters sysfs info, (err %d) port %u\n",
+ ret, port_num);
+ goto bail_sl;
}
kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD);
+ if (!qib_cc_table_size || !ppd->congestion_entries_shadow)
+ return 0;
+
+ ret = kobject_init_and_add(&ppd->pport_cc_kobj, &qib_port_cc_ktype,
+ kobj, "CCMgtA");
+ if (ret) {
+ qib_dev_err(dd,
+ "Skipping Congestion Control sysfs info, (err %d) port %u\n",
+ ret, port_num);
+ goto bail_diagc;
+ }
+
+ kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);
+
+ ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
+ &cc_setting_bin_attr);
+ if (ret) {
+ qib_dev_err(dd,
+ "Skipping Congestion Control setting sysfs info, (err %d) port %u\n",
+ ret, port_num);
+ goto bail_cc;
+ }
+
+ ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
+ &cc_table_bin_attr);
+ if (ret) {
+ qib_dev_err(dd,
+ "Skipping Congestion Control table sysfs info, (err %d) port %u\n",
+ ret, port_num);
+ goto bail_cc_entry_bin;
+ }
+
+ qib_devinfo(dd->pcidev,
+ "IB%u: Congestion Control Agent enabled for port %d\n",
+ dd->unit, port_num);
+
return 0;
+bail_cc_entry_bin:
+ sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr);
+bail_cc:
+ kobject_put(&ppd->pport_cc_kobj);
bail_diagc:
- kobject_put(&ppd->sl2vl_kobj);
+ kobject_put(&ppd->diagc_kobj);
bail_sl:
+ kobject_put(&ppd->sl2vl_kobj);
+bail_link:
kobject_put(&ppd->pport_kobj);
bail:
return ret;
for (i = 0; i < dd->num_pports; i++) {
ppd = &dd->pport[i];
- kobject_put(&ppd->pport_kobj);
+ if (qib_cc_table_size &&
+ ppd->congestion_entries_shadow) {
+ sysfs_remove_bin_file(&ppd->pport_cc_kobj,
+ &cc_setting_bin_attr);
+ sysfs_remove_bin_file(&ppd->pport_cc_kobj,
+ &cc_table_bin_attr);
+ kobject_put(&ppd->pport_cc_kobj);
+ }
kobject_put(&ppd->sl2vl_kobj);
+ kobject_put(&ppd->pport_kobj);
}
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff