#include "core_priv.h"
+#include <linux/slab.h>
+#include <linux/string.h>
+
#include <rdma/ib_mad.h>
struct ib_port {
int index;
};
+static inline int ibdev_is_alive(const struct ib_device *dev)
+{
+ return dev->reg_state == IB_DEV_REGISTERED;
+}
+
static ssize_t port_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
if (!port_attr->show)
return -EIO;
+ if (!ibdev_is_alive(p->ibdev))
+ return -ENODEV;
return port_attr->show(p, port_attr, buf);
}
return ret;
return sprintf(buf, "%d: %s\n", attr.state,
- attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ?
+ attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ?
state_name[attr.state] : "UNKNOWN");
}
if (!p->ibdev->process_mad)
return sprintf(buf, "N/A (no PMA)\n");
- in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
+ in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
if (!in_mad || !out_mad) {
ret = -ENOMEM;
goto out;
}
- memset(in_mad, 0, sizeof *in_mad);
in_mad->mad_hdr.base_version = 1;
in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
in_mad->mad_hdr.class_version = 1;
switch (width) {
case 4:
ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >>
- (offset % 4)) & 0xf);
+ (4 - (offset % 8))) & 0xf);
break;
case 8:
ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]);
kfree(dev);
}
-static int ib_device_hotplug(struct class_device *cdev, char **envp,
- int num_envp, char *buf, int size)
+static int ib_device_uevent(struct class_device *cdev, char **envp,
+ int num_envp, char *buf, int size)
{
struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
int i = 0, len = 0;
- if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len,
- "NAME=%s", dev->name))
+ if (add_uevent_var(envp, num_envp, &i, buf, size, &len,
+ "NAME=%s", dev->name))
return -ENOMEM;
/*
- * It might be nice to pass the node GUID to hotplug, but
- * right now the only way to get it is to query the device
- * provider, and this can crash during device removal because
- * we are will be running after driver removal has started.
- * We could add a node_guid field to struct ib_device, or we
- * could just let the hotplug script read the node GUID from
- * sysfs when devices are added.
+ * It would be nice to pass the node GUID with the event...
*/
envp[i] = NULL;
return NULL;
for (i = 0; i < len; i++) {
- element = kcalloc(1, sizeof(struct port_table_attribute),
+ element = kzalloc(sizeof(struct port_table_attribute),
GFP_KERNEL);
if (!element)
goto err;
if (snprintf(element->name, sizeof(element->name),
- "%d", i) >= sizeof(element->name))
+ "%d", i) >= sizeof(element->name)) {
+ kfree(element);
goto err;
+ }
element->attr.attr.name = element->name;
element->attr.attr.mode = S_IRUGO;
if (ret)
return ret;
- p = kmalloc(sizeof *p, GFP_KERNEL);
+ p = kzalloc(sizeof *p, GFP_KERNEL);
if (!p)
return -ENOMEM;
- memset(p, 0, sizeof *p);
p->ibdev = device;
p->port_num = port_num;
{
struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+ if (!ibdev_is_alive(dev))
+ return -ENODEV;
+
switch (dev->node_type) {
- case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
- case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
- case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
- default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
+ case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
+ case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type);
+ case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
+ case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
+ default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
}
}
struct ib_device_attr attr;
ssize_t ret;
+ if (!ibdev_is_alive(dev))
+ return -ENODEV;
+
ret = ib_query_device(dev, &attr);
if (ret)
return ret;
static ssize_t show_node_guid(struct class_device *cdev, char *buf)
{
struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
- struct ib_device_attr attr;
- ssize_t ret;
- ret = ib_query_device(dev, &attr);
+ if (!ibdev_is_alive(dev))
+ return -ENODEV;
+
+ return sprintf(buf, "%04x:%04x:%04x:%04x\n",
+ be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
+ be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
+ be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
+ be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
+}
+
+static ssize_t show_node_desc(struct class_device *cdev, char *buf)
+{
+ struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+
+ return sprintf(buf, "%.64s\n", dev->node_desc);
+}
+
+static ssize_t set_node_desc(struct class_device *cdev, const char *buf,
+ size_t count)
+{
+ struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+ struct ib_device_modify desc = {};
+ int ret;
+
+ if (!dev->modify_device)
+ return -EIO;
+
+ memcpy(desc.node_desc, buf, min_t(int, count, 64));
+ ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
if (ret)
return ret;
- return sprintf(buf, "%04x:%04x:%04x:%04x\n",
- be16_to_cpu(((__be16 *) &attr.node_guid)[0]),
- be16_to_cpu(((__be16 *) &attr.node_guid)[1]),
- be16_to_cpu(((__be16 *) &attr.node_guid)[2]),
- be16_to_cpu(((__be16 *) &attr.node_guid)[3]));
+ return count;
}
static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
+static CLASS_DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc,
+ set_node_desc);
static struct class_device_attribute *ib_class_attributes[] = {
&class_device_attr_node_type,
&class_device_attr_sys_image_guid,
- &class_device_attr_node_guid
+ &class_device_attr_node_guid,
+ &class_device_attr_node_desc
};
static struct class ib_class = {
.name = "infiniband",
.release = ib_device_release,
- .hotplug = ib_device_hotplug,
+ .uevent = ib_device_uevent,
};
int ib_device_register_sysfs(struct ib_device *device)
if (ret)
goto err_put;
- if (device->node_type == IB_NODE_SWITCH) {
+ if (device->node_type == RDMA_NODE_IB_SWITCH) {
ret = add_port(device, 0);
if (ret)
goto err_put;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff