#define PORTAL_MINOR 240
struct nal_cmd_handler {
+ int nch_number;
nal_cmd_handler_fn *nch_handler;
void *nch_private;
};
-static struct nal_cmd_handler nal_cmd[NAL_MAX_NR + 1];
+static struct nal_cmd_handler nal_cmd[16];
static DECLARE_MUTEX(nal_cmd_sem);
#ifdef PORTAL_DEBUG
PORTAL_FREE(data, len);
}
+struct nal_cmd_handler *
+libcfs_find_nal_cmd_handler(int nal)
+{
+ int i;
+
+ for (i = 0; i < sizeof(nal_cmd)/sizeof(nal_cmd[0]); i++)
+ if (nal_cmd[i].nch_handler != NULL &&
+ nal_cmd[i].nch_number == nal)
+ return (&nal_cmd[i]);
+
+ return (NULL);
+}
+
int
libcfs_nal_cmd_register(int nal, nal_cmd_handler_fn *handler, void *private)
{
- int rc = 0;
+ struct nal_cmd_handler *cmd;
+ int i;
+ int rc;
+
+ CDEBUG(D_IOCTL, "Register NAL %x, handler: %p\n", nal, handler);
- CDEBUG(D_IOCTL, "Register NAL %d, handler: %p\n", nal, handler);
+ down(&nal_cmd_sem);
+
+ if (libcfs_find_nal_cmd_handler(nal) != NULL) {
+ up (&nal_cmd_sem);
+ return (-EBUSY);
+ }
- if (nal > 0 && nal <= NAL_MAX_NR) {
- down(&nal_cmd_sem);
- if (nal_cmd[nal].nch_handler != NULL)
- rc = -EBUSY;
- else {
- nal_cmd[nal].nch_handler = handler;
- nal_cmd[nal].nch_private = private;
+ cmd = NULL;
+ for (i = 0; i < sizeof(nal_cmd)/sizeof(nal_cmd[0]); i++)
+ if (nal_cmd[i].nch_handler == NULL) {
+ cmd = &nal_cmd[i];
+ break;
}
- up(&nal_cmd_sem);
+
+ if (cmd == NULL) {
+ rc = -EBUSY;
+ } else {
+ rc = 0;
+ cmd->nch_number = nal;
+ cmd->nch_handler = handler;
+ cmd->nch_private = private;
}
+
+ up(&nal_cmd_sem);
+
return rc;
}
EXPORT_SYMBOL(libcfs_nal_cmd_register);
void
libcfs_nal_cmd_unregister(int nal)
{
- CDEBUG(D_IOCTL, "Unregister NAL %d\n", nal);
+ struct nal_cmd_handler *cmd;
- LASSERT(nal > 0 && nal <= NAL_MAX_NR);
- LASSERT(nal_cmd[nal].nch_handler != NULL);
+ CDEBUG(D_IOCTL, "Unregister NAL %x\n", nal);
down(&nal_cmd_sem);
- nal_cmd[nal].nch_handler = NULL;
- nal_cmd[nal].nch_private = NULL;
+ cmd = libcfs_find_nal_cmd_handler(nal);
+ LASSERT (cmd != NULL);
+ cmd->nch_handler = NULL;
+ cmd->nch_private = NULL;
up(&nal_cmd_sem);
}
EXPORT_SYMBOL(libcfs_nal_cmd_unregister);
int
libcfs_nal_cmd(struct portals_cfg *pcfg)
{
+#if CRAY_PORTALS
+ /* pretend success */
+ RETURN(0);
+#else
+ struct nal_cmd_handler *cmd;
__u32 nal = pcfg->pcfg_nal;
int rc = -EINVAL;
ENTRY;
down(&nal_cmd_sem);
- if (nal > 0 && nal <= NAL_MAX_NR &&
- nal_cmd[nal].nch_handler != NULL) {
- CDEBUG(D_IOCTL, "calling handler nal: %d, cmd: %d\n", nal,
+ cmd = libcfs_find_nal_cmd_handler(nal);
+ if (cmd != NULL) {
+ CDEBUG(D_IOCTL, "calling handler nal: %x, cmd: %d\n", nal,
pcfg->pcfg_command);
- rc = nal_cmd[nal].nch_handler(pcfg, nal_cmd[nal].nch_private);
+ rc = cmd->nch_handler(pcfg, cmd->nch_private);
+ } else {
+ CERROR("invalid nal: %x, cmd: %d\n", nal, pcfg->pcfg_command);
}
up(&nal_cmd_sem);
RETURN(rc);
+#endif
}
EXPORT_SYMBOL(libcfs_nal_cmd);
data = (struct portal_ioctl_data *)buf;
switch (cmd) {
- case IOC_PORTAL_SET_DAEMON:
- RETURN (portals_debug_set_daemon (
- (unsigned int) data->ioc_count,
- (unsigned int) data->ioc_inllen1,
- (char *) data->ioc_inlbuf1,
- (unsigned int) data->ioc_misc));
- case IOC_PORTAL_GET_DEBUG: {
- __s32 size = portals_debug_copy_to_user(data->ioc_pbuf1,
- data->ioc_plen1);
-
- if (size < 0)
- RETURN(size);
-
- data->ioc_size = size;
- err = copy_to_user((char *)arg, data, sizeof(*data));
- RETURN(err);
- }
case IOC_PORTAL_CLEAR_DEBUG:
portals_debug_clear_buffer();
RETURN(0);
portals_debug_mark_buffer(data->ioc_inlbuf1);
RETURN(0);
#if LWT_SUPPORT
- case IOC_PORTAL_LWT_CONTROL:
+ case IOC_PORTAL_LWT_CONTROL:
err = lwt_control (data->ioc_flags, data->ioc_misc);
break;
-
+
case IOC_PORTAL_LWT_SNAPSHOT: {
cycles_t now;
int ncpu;
int total_size;
-
+
err = lwt_snapshot (&now, &ncpu, &total_size,
data->ioc_pbuf1, data->ioc_plen1);
data->ioc_nid = now;
data->ioc_count = ncpu;
data->ioc_misc = total_size;
+ /* Hedge against broken user/kernel typedefs (e.g. cycles_t) */
+ data->ioc_nid2 = sizeof(lwt_event_t);
+ data->ioc_nid3 = offsetof(lwt_event_t, lwte_where);
+
if (err == 0 &&
copy_to_user((char *)arg, data, sizeof (*data)))
err = -EFAULT;
break;
}
-
+
case IOC_PORTAL_LWT_LOOKUP_STRING:
err = lwt_lookup_string (&data->ioc_count, data->ioc_pbuf1,
data->ioc_pbuf2, data->ioc_plen2);
struct portals_cfg pcfg;
if (data->ioc_plen1 != sizeof(pcfg)) {
- CERROR("Bad ioc_plen1 %d (wanted %d)\n",
+ CERROR("Bad ioc_plen1 %d (wanted "LPSZ")\n",
data->ioc_plen1, sizeof(pcfg));
err = -EINVAL;
break;
}
- if (copy_from_user(&pcfg, (void *)data->ioc_pbuf1,
+ if (copy_from_user(&pcfg, (void *)data->ioc_pbuf1,
sizeof(pcfg))) {
err = -EFAULT;
break;
}
- CDEBUG (D_IOCTL, "nal command nal %d cmd %d\n", pcfg.pcfg_nal,
+ CDEBUG (D_IOCTL, "nal command nal %x cmd %d\n", pcfg.pcfg_nal,
pcfg.pcfg_command);
err = libcfs_nal_cmd(&pcfg);
if (err == 0 &&
- copy_to_user((char *)data->ioc_pbuf1, &pcfg,
+ copy_to_user((char *)data->ioc_pbuf1, &pcfg,
sizeof (pcfg)))
err = -EFAULT;
break;
CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
atomic_read(&portal_kmemory));
-
rc = misc_deregister(&libcfs_dev);
if (rc)
CERROR("misc_deregister error %d\n", rc);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff