#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/mutex.h>
#include <linux/freezer.h>
#include <asm/atomic.h>
};
-static char *nodemgr_find_oui_name(int oui)
-{
-#ifdef CONFIG_IEEE1394_OUI_DB
- extern struct oui_list_struct {
- int oui;
- char *name;
- } oui_list[];
- int i;
-
- for (i = 0; oui_list[i].name; i++)
- if (oui_list[i].oui == oui)
- return oui_list[i].name;
-#endif
- return NULL;
-}
-
/*
* Correct the speed map entry. This is necessary
* - for nodes with link speed < phy speed,
static int nodemgr_get_max_rom(quadlet_t *bus_info_data, void *__ci)
{
- return (CSR1212_BE32_TO_CPU(bus_info_data[2]) >> 8) & 0x3;
+ return (be32_to_cpu(bus_info_data[2]) >> 8) & 0x3;
}
static struct csr1212_bus_ops nodemgr_csr_ops = {
struct device nodemgr_dev_template_host = {
.bus = &ieee1394_bus_type,
.release = nodemgr_release_host,
- .driver = &nodemgr_mid_layer_driver,
};
if (state == 1) {
ud->ignore_driver = 1;
- down_write(&ieee1394_bus_type.subsys.rwsem);
device_release_driver(dev);
- up_write(&ieee1394_bus_type.subsys.rwsem);
} else if (state == 0)
ud->ignore_driver = 0;
fw_attr(ne, struct node_entry, vendor_id, unsigned int, "0x%06x\n")
fw_attr_td(ne, struct node_entry, vendor_name_kv)
-fw_attr(ne, struct node_entry, vendor_oui, const char *, "%s\n")
fw_attr(ne, struct node_entry, guid, unsigned long long, "0x%016Lx\n")
fw_attr(ne, struct node_entry, guid_vendor_id, unsigned int, "0x%06x\n")
-fw_attr(ne, struct node_entry, guid_vendor_oui, const char *, "%s\n")
fw_attr(ne, struct node_entry, in_limbo, int, "%d\n");
static struct device_attribute *const fw_ne_attrs[] = {
fw_attr(ud, struct unit_directory, specifier_id, unsigned int, "0x%06x\n")
fw_attr(ud, struct unit_directory, version, unsigned int, "0x%06x\n")
fw_attr_td(ud, struct unit_directory, vendor_name_kv)
-fw_attr(ud, struct unit_directory, vendor_oui, const char *, "%s\n")
fw_attr_td(ud, struct unit_directory, model_name_kv)
static struct device_attribute *const fw_ud_attrs[] = {
goto fail;
return;
fail:
- HPSB_ERR("Failed to add sysfs attribute for driver %s", driver->name);
+ HPSB_ERR("Failed to add sysfs attribute");
}
goto fail;
return;
fail:
- HPSB_ERR("Failed to add sysfs attribute for node %016Lx",
- (unsigned long long)ne->guid);
+ HPSB_ERR("Failed to add sysfs attribute");
}
goto fail;
return;
fail:
- HPSB_ERR("Failed to add sysfs attribute for host %d", host->id);
+ HPSB_ERR("Failed to add sysfs attribute");
}
}
return;
fail:
- HPSB_ERR("Failed to add sysfs attributes for unit %s",
- ud->device.bus_id);
+ HPSB_ERR("Failed to add sysfs attribute");
}
ne->guid = guid;
ne->guid_vendor_id = (guid >> 40) & 0xffffff;
- ne->guid_vendor_oui = nodemgr_find_oui_name(ne->guid_vendor_id);
ne->csr = csr;
memcpy(&ne->device, &nodemgr_dev_template_ne,
goto fail_classdevreg;
get_device(&ne->device);
- if (ne->guid_vendor_oui &&
- device_create_file(&ne->device, &dev_attr_ne_guid_vendor_oui))
- goto fail_addoiu;
nodemgr_create_ne_dev_files(ne);
nodemgr_update_bus_options(ne);
return ne;
-fail_addoiu:
- put_device(&ne->device);
fail_classdevreg:
device_unregister(&ne->device);
fail_devreg:
goto fail_classdevreg;
get_device(&ud->device);
- if (ud->vendor_oui &&
- device_create_file(&ud->device, &dev_attr_ud_vendor_oui))
- goto fail_addoui;
nodemgr_create_ud_dev_files(ud);
return;
-fail_addoui:
- put_device(&ud->device);
fail_classdevreg:
device_unregister(&ud->device);
fail_devreg:
if (kv->key.type == CSR1212_KV_TYPE_IMMEDIATE) {
ud->vendor_id = kv->value.immediate;
ud->flags |= UNIT_DIRECTORY_VENDOR_ID;
-
- if (ud->vendor_id)
- ud->vendor_oui = nodemgr_find_oui_name(ud->vendor_id);
}
break;
switch (kv->key.id) {
case CSR1212_KV_ID_VENDOR:
ne->vendor_id = kv->value.immediate;
-
- if (ne->vendor_id)
- ne->vendor_oui = nodemgr_find_oui_name(ne->vendor_id);
break;
case CSR1212_KV_ID_NODE_CAPABILITIES:
last_key_id = kv->key.id;
}
- if (ne->vendor_oui &&
- device_create_file(&ne->device, &dev_attr_ne_vendor_oui))
- goto fail;
- if (ne->vendor_name_kv &&
- device_create_file(&ne->device, &dev_attr_ne_vendor_name_kv))
- goto fail;
- return;
-fail:
- HPSB_ERR("Failed to add sysfs attribute for node %016Lx",
- (unsigned long long)ne->guid);
+ if (ne->vendor_name_kv) {
+ int error = device_create_file(&ne->device,
+ &dev_attr_ne_vendor_name_kv);
+
+ if (error && error != -EEXIST)
+ HPSB_ERR("Failed to add sysfs attribute");
+ }
}
#ifdef CONFIG_HOTPLUG
struct unit_directory *ud;
int i = 0;
int length = 0;
+ int retval = 0;
/* ieee1394:venNmoNspNverN */
char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1];
#define PUT_ENVP(fmt,val) \
do { \
- int printed; \
- envp[i++] = buffer; \
- printed = snprintf(buffer, buffer_size - length, \
- fmt, val); \
- if ((buffer_size - (length+printed) <= 0) || (i >= num_envp)) \
- return -ENOMEM; \
- length += printed+1; \
- buffer += printed+1; \
+ retval = add_uevent_var(envp, num_envp, &i, \
+ buffer, buffer_size, &length, \
+ fmt, val); \
+ if (retval) \
+ return retval; \
} while (0)
PUT_ENVP("VENDOR_ID=%06x", ud->vendor_id);
if (ud->ne != ne)
continue;
- down_write(&ieee1394_bus_type.subsys.rwsem);
if (ud->device.driver &&
(!ud->device.driver->suspend ||
ud->device.driver->suspend(&ud->device, PMSG_SUSPEND)))
device_release_driver(&ud->device);
- up_write(&ieee1394_bus_type.subsys.rwsem);
}
up(&nodemgr_ud_class.sem);
}
if (ud->ne != ne)
continue;
- down_read(&ieee1394_bus_type.subsys.rwsem);
if (ud->device.driver && ud->device.driver->resume)
ud->device.driver->resume(&ud->device);
- up_read(&ieee1394_bus_type.subsys.rwsem);
}
up(&nodemgr_ud_class.sem);
if (ud->ne != ne)
continue;
- down_write(&ieee1394_bus_type.subsys.rwsem);
if (ud->device.driver) {
pdrv = container_of(ud->device.driver,
struct hpsb_protocol_driver,
if (pdrv->update && pdrv->update(ud))
device_release_driver(&ud->device);
}
- up_write(&ieee1394_bus_type.subsys.rwsem);
}
up(&nodemgr_ud_class.sem);
}
for (;;) {
/* Sleep until next bus reset */
set_current_state(TASK_INTERRUPTIBLE);
- if (get_hpsb_generation(host) == generation)
+ if (get_hpsb_generation(host) == generation &&
+ !kthread_should_stop())
schedule();
__set_current_state(TASK_RUNNING);
return 0;
}
-int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *))
+/**
+ * nodemgr_for_each_host - call a function for each IEEE 1394 host
+ * @data: an address to supply to the callback
+ * @cb: function to call for each host
+ *
+ * Iterate the hosts, calling a given function with supplied data for each host.
+ * If the callback fails on a host, i.e. if it returns a non-zero value, the
+ * iteration is stopped.
+ *
+ * Return value: 0 on success, non-zero on failure (same as returned by last run
+ * of the callback).
+ */
+int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *))
{
struct class_device *cdev;
struct hpsb_host *host;
list_for_each_entry(cdev, &hpsb_host_class.children, node) {
host = container_of(cdev, struct hpsb_host, class_dev);
- if ((error = cb(host, __data)))
+ if ((error = cb(host, data)))
break;
}
up(&hpsb_host_class.sem);
return error;
}
-/* The following four convenience functions use a struct node_entry
+/* The following two convenience functions use a struct node_entry
* for addressing a node on the bus. They are intended for use by any
* process context, not just the nodemgr thread, so we need to be a
* little careful when reading out the node ID and generation. The
* ID's.
*/
-void hpsb_node_fill_packet(struct node_entry *ne, struct hpsb_packet *pkt)
+/**
+ * hpsb_node_fill_packet - fill some destination information into a packet
+ * @ne: destination node
+ * @packet: packet to fill in
+ *
+ * This will fill in the given, pre-initialised hpsb_packet with the current
+ * information from the node entry (host, node ID, bus generation number).
+ */
+void hpsb_node_fill_packet(struct node_entry *ne, struct hpsb_packet *packet)
{
- pkt->host = ne->host;
- pkt->generation = ne->generation;
+ packet->host = ne->host;
+ packet->generation = ne->generation;
barrier();
- pkt->node_id = ne->nodeid;
+ packet->node_id = ne->nodeid;
}
int hpsb_node_write(struct node_entry *ne, u64 addr,
error = class_register(&nodemgr_ne_class);
if (error)
- return error;
-
+ goto fail_ne;
error = class_register(&nodemgr_ud_class);
- if (error) {
- class_unregister(&nodemgr_ne_class);
- return error;
- }
+ if (error)
+ goto fail_ud;
error = driver_register(&nodemgr_mid_layer_driver);
+ if (error)
+ goto fail_ml;
+ /* This driver is not used if nodemgr is off (disable_nodemgr=1). */
+ nodemgr_dev_template_host.driver = &nodemgr_mid_layer_driver;
+
hpsb_register_highlevel(&nodemgr_highlevel);
return 0;
+
+fail_ml:
+ class_unregister(&nodemgr_ud_class);
+fail_ud:
+ class_unregister(&nodemgr_ne_class);
+fail_ne:
+ return error;
}
void cleanup_ieee1394_nodemgr(void)
{
hpsb_unregister_highlevel(&nodemgr_highlevel);
-
+ driver_unregister(&nodemgr_mid_layer_driver);
class_unregister(&nodemgr_ud_class);
class_unregister(&nodemgr_ne_class);
}
projects / linux-2.6-omap-h63xx.git / blobdiff