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land b1_4_bgl on HEAD (20050404_1913)
[fs/lustre-release.git] / lnet / utils / portals.c
index fb031ae..e3f5916 100644 (file)
 
 #include <stdio.h>
 #include <sys/types.h>
+#ifdef HAVE_NETDB_H
 #include <netdb.h>
+#endif
 #include <sys/socket.h>
+#ifdef HAVE_NETINET_TCP_H
 #include <netinet/tcp.h>
-#include <netdb.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
+#ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
+#else
+#include "ioctl.h"
+#endif
 #include <errno.h>
 #include <unistd.h>
 #include <time.h>
 #include <stdarg.h>
-#include <asm/byteorder.h>
-
-#ifdef __CYGWIN__
-
-#include <netinet/in.h>
-
-#warning assuming little endian
-
-#define __cpu_to_le64(x) ((__u64)(x))
-#define __le64_to_cpu(x) ((__u64)(x))
-#define __cpu_to_le32(x) ((__u32)(x))
-#define __le32_to_cpu(x) ((__u32)(x))
-#define __cpu_to_le16(x) ((__u16)(x))
-#define __le16_to_cpu(x) ((__u16)(x))
-
-#endif /* __CYGWIN__ */
+#ifdef HAVE_ENDIAN_H
+#include <endian.h>
+#endif
+#if CRAY_PORTALS
+#ifdef REDSTORM
+#define __QK__
+#endif
+#include <portals/ipmap.h>
+#endif
+
+#include <libcfs/portals_utils.h>
 #include <portals/api-support.h>
 #include <portals/ptlctl.h>
-#include <portals/list.h>
 #include <portals/lib-types.h>
 #include <portals/socknal.h>
 #include "parser.h"
 
 unsigned int portal_debug;
 unsigned int portal_printk;
-unsigned int portal_stack;
-unsigned int portal_cerror;
 
 static unsigned int g_nal = 0;
 
-static int g_socket_txmem = 0;
-static int g_socket_rxmem = 0;
-static int g_socket_nonagle = 1;
-
 typedef struct
 {
         char *name;
@@ -77,16 +71,87 @@ typedef struct
 
 static name2num_t nalnames[] = {
         {"any",         0},
+#if !CRAY_PORTALS
         {"tcp",                SOCKNAL},
         {"elan",       QSWNAL},
         {"gm",         GMNAL},
-        {"ib",         IBNAL},
-        {"scimac",      SCIMACNAL},
+        {"openib",      OPENIBNAL},
+        {"iib",         IIBNAL},
+        {"vib",         VIBNAL},
+        {"lo",          LONAL},
+        {"ra",          RANAL},
+#else
+        {"cray_kern_nal", CRAY_KERN_NAL},
+        {"cray_user_nal", CRAY_USER_NAL},
+        {"cray_qk_nal",   CRAY_QK_NAL},
+#endif
         {NULL,         -1}
 };
 
 static cfg_record_cb_t g_record_cb;
 
+/* Convert a string boolean to an int; "enable" -> 1 */
+int ptl_parse_bool (int *b, char *str) {
+        if (!strcasecmp (str, "no") ||
+            !strcasecmp (str, "n") ||
+            !strcasecmp (str, "off") ||
+            !strcasecmp (str, "down") ||
+            !strcasecmp (str, "disable"))
+        {
+                *b = 0;
+                return (0);
+        }
+        
+        if (!strcasecmp (str, "yes") ||
+            !strcasecmp (str, "y") ||
+            !strcasecmp (str, "on") ||
+            !strcasecmp (str, "up") ||
+            !strcasecmp (str, "enable"))
+        {
+                *b = 1;
+                return (0);
+        }
+        
+        return (-1);
+}
+
+/* Convert human readable size string to and int; "1k" -> 1000 */
+int ptl_parse_size (int *sizep, char *str) {
+        int size;
+        char mod[32];
+
+        switch (sscanf (str, "%d%1[gGmMkK]", &size, mod)) {
+        default:
+                return (-1);
+
+        case 1:
+                *sizep = size;
+                return (0);
+
+        case 2:
+                switch (*mod) {
+                case 'g':
+                case 'G':
+                        *sizep = size << 30;
+                        return (0);
+
+                case 'm':
+                case 'M':
+                        *sizep = size << 20;
+                        return (0);
+
+                case 'k':
+                case 'K':
+                        *sizep = size << 10;
+                        return (0);
+
+                default:
+                        *sizep = size;
+                        return (0);
+                }
+        }
+}
+
 int 
 ptl_set_cfg_record_cb(cfg_record_cb_t cb)
 {
@@ -114,6 +179,9 @@ pcfg_ioctl(struct portals_cfg *pcfg)
                 data.ioc_nid = pcfg->pcfg_nid;
 
                 rc = l_ioctl (PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
+
+                if (rc == 0 && pcfg->pcfg_version != PORTALS_CFG_VERSION)
+                        return -EINVAL;
         }
 
         return (rc);
@@ -159,6 +227,7 @@ nal2name (int nal)
         return ((e == NULL) ? "???" : e->name);
 }
 
+#ifdef HAVE_GETHOSTBYNAME
 static struct hostent *
 ptl_gethostbyname(char * hname) {
         struct hostent *he;
@@ -171,14 +240,15 @@ ptl_gethostbyname(char * hname) {
                                 hname);
                         break;
                 default:
-                        fprintf(stderr, "gethostbyname error: %s\n",
-                                strerror(errno));
+                        fprintf(stderr, "gethostbyname error for %s: %s\n",
+                                hname, strerror(h_errno));
                         break;
                 }
                 return NULL;
         }
         return he;
 }
+#endif
 
 int
 ptl_parse_port (int *port, char *str)
@@ -224,20 +294,13 @@ ptl_parse_time (time_t *t, char *str)
 }
 
 int
-ptl_parse_ipaddr (__u32 *ipaddrp, char *str)
+ptl_parse_ipquad (__u32 *ipaddrp, char *str)
 {
-        struct hostent *he;
         int             a;
         int             b;
         int             c;
         int             d;
 
-        if (!strcmp (str, "_all_")) 
-        {
-                *ipaddrp = 0;
-                return (0);
-        }
-
         if (sscanf (str, "%d.%d.%d.%d", &a, &b, &c, &d) == 4 &&
             (a & ~0xff) == 0 && (b & ~0xff) == 0 &&
             (c & ~0xff) == 0 && (d & ~0xff) == 0)
@@ -245,31 +308,56 @@ ptl_parse_ipaddr (__u32 *ipaddrp, char *str)
                 *ipaddrp = (a<<24)|(b<<16)|(c<<8)|d;
                 return (0);
         }
-        
+
+        return (-1);
+}
+
+int
+ptl_parse_ipaddr (__u32 *ipaddrp, char *str)
+{
+#ifdef HAVE_GETHOSTBYNAME
+        struct hostent *he;
+#endif
+
+        if (!strcmp (str, "_all_")) {
+                *ipaddrp = 0;
+                return (0);
+        }
+
+        if (ptl_parse_ipquad(ipaddrp, str) == 0)
+                return (0);
+
+#ifdef HAVE_GETHOSTBYNAME
         if ((('a' <= str[0] && str[0] <= 'z') ||
              ('A' <= str[0] && str[0] <= 'Z')) &&
-             (he = ptl_gethostbyname (str)) != NULL)
-        {
+             (he = ptl_gethostbyname (str)) != NULL) {
                 __u32 addr = *(__u32 *)he->h_addr;
 
                 *ipaddrp = ntohl(addr);         /* HOST byte order */
                 return (0);
         }
+#endif
 
         return (-1);
 }
 
 char *
-ptl_ipaddr_2_str (__u32 ipaddr, char *str)
+ptl_ipaddr_2_str (__u32 ipaddr, char *str, int lookup)
 {
+#ifdef HAVE_GETHOSTBYNAME
         __u32           net_ip;
         struct hostent *he;
-        
-        net_ip = htonl (ipaddr);
-        he = gethostbyaddr (&net_ip, sizeof (net_ip), AF_INET);
-        if (he != NULL)
-                return (he->h_name);
-        
+
+        if (lookup) {
+                net_ip = htonl (ipaddr);
+                he = gethostbyaddr (&net_ip, sizeof (net_ip), AF_INET);
+                if (he != NULL) {
+                        strcpy(str, he->h_name);
+                        return (str);
+                }
+        }
+#endif
+
         sprintf (str, "%d.%d.%d.%d",
                  (ipaddr >> 24) & 0xff, (ipaddr >> 16) & 0xff,
                  (ipaddr >> 8) & 0xff, ipaddr & 0xff);
@@ -283,19 +371,18 @@ ptl_parse_nid (ptl_nid_t *nidp, char *str)
         char               *end;
         unsigned long long  ullval;
         
-        if (!strcmp (str, "_all_")) {
-                *nidp = PTL_NID_ANY;
-                return (0);
-        }
-
         if (ptl_parse_ipaddr (&ipaddr, str) == 0) {
+#if !CRAY_PORTALS
                 *nidp = (ptl_nid_t)ipaddr;
+#else
+                *nidp = (((ptl_nid_t)ipaddr & PNAL_HOSTID_MASK) << PNAL_VNODE_SHIFT);
+#endif
                 return (0);
         }
 
         ullval = strtoull(str, &end, 0);
-        if (*end == 0) {
-                /* parsed whole string */
+        if (end != str && *end == 0) {
+                /* parsed whole non-empty string */
                 *nidp = (ptl_nid_t)ullval;
                 return (0);
         }
@@ -303,17 +390,54 @@ ptl_parse_nid (ptl_nid_t *nidp, char *str)
         return (-1);
 }
 
+int
+ptl_parse_anynid (ptl_nid_t *nidp, char *str)
+{
+        if (!strcmp (str, "_all_")) {
+                *nidp = PTL_NID_ANY;
+                return 0;
+        }
+
+        return ptl_parse_nid(nidp, str);
+}
+
+__u64 ptl_nid2u64(ptl_nid_t nid)
+{
+        switch (sizeof (nid)) {
+        case 8:
+                return (nid);
+        case 4:
+                return ((__u32)nid);
+        default:
+                fprintf(stderr, "Unexpected sizeof(ptl_nid_t) == %u\n", sizeof(nid));
+                abort();
+                /* notreached */
+                return (-1);
+        }
+}
+
 char *
 ptl_nid2str (char *buffer, ptl_nid_t nid)
 {
-        __u32           addr = htonl((__u32)nid); /* back to NETWORK byte order */
-        struct hostent *he = gethostbyaddr ((const char *)&addr, sizeof (addr), AF_INET);
+        __u64           nid64 = ptl_nid2u64(nid);
+#ifdef HAVE_GETHOSTBYNAME
+        struct hostent *he = 0;
+
+        /* Don't try to resolve NIDs that are e.g. Elan host IDs.  Assume
+         * TCP addresses in the 0.x.x.x subnet are not in use.  This can
+         * happen on routers and slows things down a _lot_.  Bug 3442. */
+        if (nid & 0xff000000) {
+                __u32 addr = htonl((__u32)nid); /* back to NETWORK byte order */
+
+                he = gethostbyaddr((const char *)&addr, sizeof(addr), AF_INET);
+        }
 
         if (he != NULL)
-                strcpy (buffer, he->h_name);
+                sprintf(buffer, "%#x:%s", (int)(nid64 >> 32), he->h_name);
         else
-                sprintf (buffer, LPX64, nid);
-        
+#endif /* HAVE_GETHOSTBYNAME */
+                sprintf(buffer, LPX64, nid64);
+
         return (buffer);
 }
 
@@ -436,11 +560,11 @@ int jt_ptl_network(int argc, char **argv)
         return (-1);
 }
 
-int 
-jt_ptl_print_autoconnects (int argc, char **argv)
+int
+jt_ptl_print_interfaces (int argc, char **argv)
 {
-        struct portals_cfg        pcfg;
-        char                     buffer[64];
+        struct portals_cfg       pcfg;
+        char                     buffer[3][64];
         int                      index;
         int                      rc;
 
@@ -448,99 +572,221 @@ jt_ptl_print_autoconnects (int argc, char **argv)
                 return -1;
 
         for (index = 0;;index++) {
-                PCFG_INIT (pcfg, NAL_CMD_GET_AUTOCONN);
+                PCFG_INIT (pcfg, NAL_CMD_GET_INTERFACE);
+                pcfg.pcfg_count = index;
+
+                rc = pcfg_ioctl (&pcfg);
+                if (rc != 0)
+                        break;
+
+                printf ("%s: (%s/%s) npeer %d nroute %d\n",
+                        ptl_ipaddr_2_str(pcfg.pcfg_id, buffer[2], 1),
+                        ptl_ipaddr_2_str(pcfg.pcfg_id, buffer[0], 0),
+                        ptl_ipaddr_2_str(pcfg.pcfg_misc, buffer[1], 0),
+                        pcfg.pcfg_fd, pcfg.pcfg_count);
+        }
+
+        if (index == 0) {
+                if (errno == ENOENT) {
+                        printf ("<no interfaces>\n");
+                } else {
+                        fprintf(stderr, "Error getting interfaces: %s: "
+                                "check dmesg.\n",
+                                strerror(errno));
+                }
+        }
+
+        return 0;
+}
+
+int
+jt_ptl_add_interface (int argc, char **argv)
+{
+        struct portals_cfg       pcfg;
+        __u32                    ipaddr;
+        int                      rc;
+        __u32                    netmask = 0xffffff00;
+        int                      i;
+        int                      count;
+        char                    *end;
+
+        if (argc < 2 || argc > 3) {
+                fprintf (stderr, "usage: %s ipaddr [netmask]\n", argv[0]);
+                return 0;
+        }
+
+        if (!g_nal_is_compatible(argv[0], SOCKNAL, 0))
+                return -1;
+
+        if (ptl_parse_ipaddr(&ipaddr, argv[1]) != 0) {
+                fprintf (stderr, "Can't parse ip: %s\n", argv[1]);
+                return -1;
+        }
+
+        if (argc > 2 ) {
+                count = strtol(argv[2], &end, 0);
+                if (count > 0 && count < 32 && *end == 0) {
+                        netmask = 0;
+                        for (i = count; i > 0; i--)
+                                netmask = netmask|(1<<(32-i));
+                } else if (ptl_parse_ipquad(&netmask, argv[2]) != 0) {
+                        fprintf (stderr, "Can't parse netmask: %s\n", argv[2]);
+                        return -1;
+                }
+        }
+
+        PCFG_INIT(pcfg, NAL_CMD_ADD_INTERFACE);
+        pcfg.pcfg_id     = ipaddr;
+        pcfg.pcfg_misc   = netmask;
+
+        rc = pcfg_ioctl (&pcfg);
+        if (rc != 0) {
+                fprintf (stderr, "failed to add interface: %s\n",
+                         strerror (errno));
+                return -1;
+        }
+
+        return 0;
+}
+
+int
+jt_ptl_del_interface (int argc, char **argv)
+{
+        struct portals_cfg       pcfg;
+        int                      rc;
+        __u32                    ipaddr = 0;
+
+        if (argc > 2) {
+                fprintf (stderr, "usage: %s [ipaddr]\n", argv[0]);
+                return 0;
+        }
+
+        if (!g_nal_is_compatible(argv[0], SOCKNAL, 0))
+                return -1;
+
+        if (argc == 2 &&
+            ptl_parse_ipaddr(&ipaddr, argv[1]) != 0) {
+                fprintf (stderr, "Can't parse ip: %s\n", argv[1]);
+                return -1;
+        }
+        
+        PCFG_INIT(pcfg, NAL_CMD_DEL_INTERFACE);
+        pcfg.pcfg_id = ipaddr;
+
+        rc = pcfg_ioctl (&pcfg);
+        if (rc != 0) {
+                fprintf (stderr, "failed to delete interface: %s\n",
+                         strerror (errno));
+                return -1;
+        }
+
+        return 0;
+}
+
+int
+jt_ptl_print_peers (int argc, char **argv)
+{
+        struct portals_cfg       pcfg;
+        char                     buffer[2][64];
+        int                      index;
+        int                      rc;
+
+        if (!g_nal_is_compatible (argv[0], SOCKNAL, RANAL, 
+                                  OPENIBNAL, IIBNAL, VIBNAL, 0))
+                return -1;
+
+        for (index = 0;;index++) {
+                PCFG_INIT (pcfg, NAL_CMD_GET_PEER);
                 pcfg.pcfg_count   = index;
 
                 rc = pcfg_ioctl (&pcfg);
                 if (rc != 0)
                         break;
 
-                printf (LPX64"@%s:%d #%d buffer %d "
-                        "nonagle %s affinity %s eager %s share %d\n",
-                        pcfg.pcfg_nid, ptl_ipaddr_2_str (pcfg.pcfg_id, buffer),
-                        pcfg.pcfg_misc, pcfg.pcfg_count, pcfg.pcfg_size, 
-                        (pcfg.pcfg_flags & 1) ? "on" : "off",
-                        (pcfg.pcfg_flags & 2) ? "on" : "off",
-                        (pcfg.pcfg_flags & 4) ? "on" : "off",
-                        pcfg.pcfg_wait);
+                if (g_nal_is_compatible(NULL, SOCKNAL, 0))
+                        printf (LPX64"[%d]%s@%s:%d #%d\n",
+                                pcfg.pcfg_nid, pcfg.pcfg_wait,
+                                ptl_ipaddr_2_str (pcfg.pcfg_size, buffer[0], 1),
+                                ptl_ipaddr_2_str (pcfg.pcfg_id, buffer[1], 1),
+                                pcfg.pcfg_misc, pcfg.pcfg_count);
+                else if (g_nal_is_compatible(NULL, RANAL, OPENIBNAL, VIBNAL, 0))
+                        printf (LPX64"[%d]@%s:%d\n",
+                                pcfg.pcfg_nid, pcfg.pcfg_wait,
+                                ptl_ipaddr_2_str (pcfg.pcfg_id, buffer[1], 1),
+                                pcfg.pcfg_misc);
+                else
+                        printf (LPX64"[%d]\n",
+                                pcfg.pcfg_nid, pcfg.pcfg_wait);
         }
 
-        if (index == 0)
-                printf ("<no autoconnect routes>\n");
+        if (index == 0) {
+                if (errno == ENOENT) {
+                        printf ("<no peers>\n");
+                } else {
+                        fprintf(stderr, "Error getting peer list: %s: "
+                                "check dmesg.\n",
+                                strerror(errno));
+                }
+        }
         return 0;
 }
 
 int 
-jt_ptl_add_autoconnect (int argc, char **argv)
+jt_ptl_add_peer (int argc, char **argv)
 {
-        struct portals_cfg        pcfg;
+        struct portals_cfg       pcfg;
         ptl_nid_t                nid;
-        __u32                    ip;
-        int                      port;
-        int                      irq_affinity = 0;
-        int                      share = 0;
-        int                      eager = 0;
+        __u32                    ip = 0;
+        int                      port = 0;
         int                      rc;
 
-        if (argc < 4 || argc > 5) {
-                fprintf (stderr, "usage: %s nid ipaddr port [ise]\n", argv[0]);
+        if (!g_nal_is_compatible (argv[0], SOCKNAL, RANAL, 
+                                  OPENIBNAL, IIBNAL, VIBNAL, 0))
+                return -1;
+
+        if (g_nal_is_compatible(NULL, SOCKNAL, OPENIBNAL, RANAL, 0)) {
+                if (argc != 4) {
+                        fprintf (stderr, "usage(tcp,openib,ra): %s nid ipaddr port\n", 
+                                 argv[0]);
+                        return 0;
+                }
+        } else if (g_nal_is_compatible(NULL, VIBNAL, 0)) {
+                if (argc != 3) {
+                        fprintf (stderr, "usage(vib): %s nid ipaddr\n", 
+                                 argv[0]);
+                        return 0;
+                }
+        } else if (argc != 2) {
+                fprintf (stderr, "usage(iib): %s nid\n", argv[0]);
                 return 0;
         }
 
-        if (!g_nal_is_compatible (argv[0], SOCKNAL, 0))
-                return -1;
-
         if (ptl_parse_nid (&nid, argv[1]) != 0 ||
                 nid == PTL_NID_ANY) {
                 fprintf (stderr, "Can't parse NID: %s\n", argv[1]);
                 return -1;
         }
 
-        if (ptl_parse_ipaddr (&ip, argv[2]) != 0) {
+        if (g_nal_is_compatible (NULL, SOCKNAL, OPENIBNAL, VIBNAL, RANAL, 0) &&
+            ptl_parse_ipaddr (&ip, argv[2]) != 0) {
                 fprintf (stderr, "Can't parse ip addr: %s\n", argv[2]);
                 return -1;
         }
 
-        if (ptl_parse_port (&port, argv[3]) != 0) {
+        if (g_nal_is_compatible (NULL, SOCKNAL, OPENIBNAL, RANAL, 0) &&
+            ptl_parse_port (&port, argv[3]) != 0) {
                 fprintf (stderr, "Can't parse port: %s\n", argv[3]);
                 return -1;
         }
 
-        if (argc > 4) {
-                char *opts = argv[4];
-                
-                while (*opts != 0)
-                        switch (*opts++) {
-                        case 'i':
-                                irq_affinity = 1;
-                                break;
-                        case 's':
-                                share = 1;
-                                break;
-                        case 'e':
-                                eager = 1;
-                                break;
-                        default:
-                                fprintf (stderr, "Can't parse options: %s\n",
-                                         argv[4]);
-                                return -1;
-                        }
-        }
-
-        PCFG_INIT(pcfg, NAL_CMD_ADD_AUTOCONN);
+        PCFG_INIT(pcfg, NAL_CMD_ADD_PEER);
         pcfg.pcfg_nid     = nid;
         pcfg.pcfg_id      = ip;
         pcfg.pcfg_misc    = port;
-        /* only passing one buffer size! */
-        pcfg.pcfg_size    = MAX (g_socket_rxmem, g_socket_txmem);
-        pcfg.pcfg_flags   = (g_socket_nonagle ? 0x01 : 0) |
-                            (irq_affinity     ? 0x02 : 0) |
-                            (share            ? 0x04 : 0) |
-                            (eager            ? 0x08 : 0);
 
         rc = pcfg_ioctl (&pcfg);
         if (rc != 0) {
-                fprintf (stderr, "failed to enable autoconnect: %s\n",
+                fprintf (stderr, "failed to add peer: %s\n",
                          strerror (errno));
                 return -1;
         }
@@ -549,63 +795,64 @@ jt_ptl_add_autoconnect (int argc, char **argv)
 }
 
 int 
-jt_ptl_del_autoconnect (int argc, char **argv)
+jt_ptl_del_peer (int argc, char **argv)
 {
         struct portals_cfg       pcfg;
         ptl_nid_t                nid = PTL_NID_ANY;
-        __u32                    ip  = 0;
-        int                      share = 0;
-        int                      keep_conn = 0;
+        __u32                    ip = 0;
+        int                      single_share = 0;
+        int                      argidx;
         int                      rc;
 
-        if (argc > 4) {
-                fprintf (stderr, "usage: %s [nid] [ipaddr] [sk]\n",
-                         argv[0]);
-                return 0;
-        }
-
-        if (!g_nal_is_compatible (argv[0], SOCKNAL, 0))
+        if (!g_nal_is_compatible (argv[0], SOCKNAL, RANAL, 
+                                  OPENIBNAL, IIBNAL, VIBNAL, 0))
                 return -1;
 
+        if (g_nal_is_compatible(NULL, SOCKNAL, 0)) {
+                if (argc > 4) {
+                        fprintf (stderr, "usage: %s [nid] [ipaddr] [single_share]\n",
+                                 argv[0]);
+                        return 0;
+                }
+        } else if (argc > 3) {
+                fprintf (stderr, "usage: %s [nid] [single_share]\n", argv[0]);
+                return 0;
+        }
+                
         if (argc > 1 &&
-            ptl_parse_nid (&nid, argv[1]) != 0) {
+            ptl_parse_anynid (&nid, argv[1]) != 0) {
                 fprintf (stderr, "Can't parse nid: %s\n", argv[1]);
                 return -1;
         }
 
-        if (argc > 2 &&
-            ptl_parse_ipaddr (&ip, argv[2]) != 0) {
-                fprintf (stderr, "Can't parse ip addr: %s\n", argv[2]);
-                return -1;
+        argidx = 2;
+        if (g_nal_is_compatible(NULL, SOCKNAL, 0)) {
+                if (argc > argidx &&
+                    ptl_parse_ipaddr (&ip, argv[argidx]) != 0) {
+                        fprintf (stderr, "Can't parse ip addr: %s\n",
+                                 argv[argidx]);
+                        return -1;
+                }
+                argidx++;
         }
-
-        if (argc > 3) {
-                char *opts = argv[3];
-                
-                while (*opts != 0)
-                        switch (*opts++) {
-                        case 's':
-                                share = 1;
-                                break;
-                        case 'k':
-                                keep_conn = 1;
-                                break;
-                        default:
-                                fprintf (stderr, "Can't parse flags: %s\n", 
-                                         argv[3]);
-                                return -1;
-                        }
+        
+        if (argc > argidx) {
+                if (!strcmp (argv[argidx], "single_share")) {
+                        single_share = 1;
+                } else {
+                        fprintf (stderr, "Unrecognised arg %s'\n", argv[3]);
+                        return -1;
+                }
         }
 
-        PCFG_INIT(pcfg, NAL_CMD_DEL_AUTOCONN);
-        pcfg.pcfg_nid     = nid;
-        pcfg.pcfg_id      = ip;
-        pcfg.pcfg_flags   = (share     ? 1 : 0) |
-                           (keep_conn ? 2 : 0);
+        PCFG_INIT(pcfg, NAL_CMD_DEL_PEER);
+        pcfg.pcfg_nid = nid;
+        pcfg.pcfg_id = ip;
+        pcfg.pcfg_flags = single_share;
 
         rc = pcfg_ioctl (&pcfg);
         if (rc != 0) {
-                fprintf (stderr, "failed to remove autoconnect route: %s\n",
+                fprintf (stderr, "failed to remove peer: %s\n",
                          strerror (errno));
                 return -1;
         }
@@ -617,14 +864,15 @@ int
 jt_ptl_print_connections (int argc, char **argv)
 {
         struct portals_cfg       pcfg;
-        char                     buffer[64];
+        char                     buffer[2][64];
         int                      index;
         int                      rc;
 
-        if (!g_nal_is_compatible (argv[0], SOCKNAL, 0))
+        if (!g_nal_is_compatible (argv[0], SOCKNAL, RANAL, 
+                                  OPENIBNAL, IIBNAL, VIBNAL, 0))
                 return -1;
 
-        for (index = 0;;index++) {
+        for (index = 0; ; index++) {
                 PCFG_INIT (pcfg,  NAL_CMD_GET_CONN);
                 pcfg.pcfg_count   = index;
                 
@@ -632,39 +880,59 @@ jt_ptl_print_connections (int argc, char **argv)
                 if (rc != 0)
                         break;
 
-                printf (LPX64"@%s:%d:%s\n",
-                        pcfg.pcfg_nid, 
-                        ptl_ipaddr_2_str (pcfg.pcfg_id, buffer),
-                        pcfg.pcfg_misc,
-                        (pcfg.pcfg_flags == SOCKNAL_CONN_ANY) ? "A" :
-                        (pcfg.pcfg_flags == SOCKNAL_CONN_CONTROL) ? "C" :
-                        (pcfg.pcfg_flags == SOCKNAL_CONN_BULK_IN) ? "I" :
-                        (pcfg.pcfg_flags == SOCKNAL_CONN_BULK_OUT) ? "O" : "?");
+                if (g_nal_is_compatible (NULL, SOCKNAL, 0))
+                        printf ("[%d]%s:"LPX64"@%s:%d:%s %d/%d %s\n",
+                                pcfg.pcfg_gw_nal,       /* scheduler */
+                                ptl_ipaddr_2_str (pcfg.pcfg_fd, buffer[0], 1), /* local IP addr */
+                                pcfg.pcfg_nid, 
+                                ptl_ipaddr_2_str (pcfg.pcfg_id, buffer[1], 1), /* remote IP addr */
+                                pcfg.pcfg_misc,         /* remote port */
+                                (pcfg.pcfg_flags == SOCKNAL_CONN_ANY) ? "A" :
+                                (pcfg.pcfg_flags == SOCKNAL_CONN_CONTROL) ? "C" :
+                                (pcfg.pcfg_flags == SOCKNAL_CONN_BULK_IN) ? "I" :
+                                (pcfg.pcfg_flags == SOCKNAL_CONN_BULK_OUT) ? "O" : "?",
+                                pcfg.pcfg_count,        /* tx buffer size */
+                                pcfg.pcfg_size,         /* rx buffer size */
+                                pcfg.pcfg_wait ? "nagle" : "nonagle");
+                else if (g_nal_is_compatible (NULL, RANAL, 0))
+                        printf ("[%d]"LPX64"\n",
+                                pcfg.pcfg_id,       /* device id */
+                                pcfg.pcfg_nid);
+                else
+                        printf (LPX64"\n",
+                                pcfg.pcfg_nid);
         }
 
-        if (index == 0)
-                printf ("<no connections>\n");
+        if (index == 0) {
+                if (errno == ENOENT) {
+                        printf ("<no connections>\n");
+                } else {
+                        fprintf(stderr, "Error getting connection list: %s: "
+                                "check dmesg.\n",
+                                strerror(errno));
+                }
+        }
         return 0;
 }
 
 int jt_ptl_connect(int argc, char **argv)
 {
+#ifndef HAVE_CONNECT
+        /* no connect() support */
+        return -1;
+#else /* HAVE_CONNECT */
         struct portals_cfg pcfg;
         struct sockaddr_in srvaddr;
+        struct sockaddr_in locaddr;
         __u32 ipaddr;
         char *flag;
         int fd, rc;
-        int nonagle = 0;
-        int rxmem = 0;
-        int txmem = 0;
-        int bind_irq = 0;
         int type = SOCKNAL_CONN_ANY;
-        int port;
+        int port, rport;
         int o;
-        int olen;
 
         if (argc < 3) {
-                fprintf(stderr, "usage: %s ip port [xibctr]\n", argv[0]);
+                fprintf(stderr, "usage: %s ip port [type]\n", argv[0]);
                 return 0;
         }
 
@@ -686,10 +954,6 @@ int jt_ptl_connect(int argc, char **argv)
                 for (flag = argv[3]; *flag != 0; flag++)
                         switch (*flag)
                         {
-                        case 'i':
-                                bind_irq = 1;
-                                break;
-                                
                         case 'I':
                                 if (type != SOCKNAL_CONN_ANY) {
                                         fprintf(stderr, "Can't flag type twice\n");
@@ -720,60 +984,53 @@ int jt_ptl_connect(int argc, char **argv)
                                 return (-1);
                         }
 
+        memset(&locaddr, 0, sizeof(locaddr)); 
+        locaddr.sin_family = AF_INET; 
+        locaddr.sin_addr.s_addr = INADDR_ANY;
+
         memset(&srvaddr, 0, sizeof(srvaddr));
         srvaddr.sin_family = AF_INET;
         srvaddr.sin_port = htons(port);
         srvaddr.sin_addr.s_addr = htonl(ipaddr);
 
-        fd = socket(PF_INET, SOCK_STREAM, 0);
-        if ( fd < 0 ) {
-                fprintf(stderr, "socket() failed: %s\n", strerror(errno));
-                return -1;
-        }
-
-        if (g_socket_nonagle)
-        {
-                o = 1;
-                if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &o, sizeof (o)) != 0) { 
-                        fprintf(stderr, "cannot disable nagle: %s\n", strerror(errno));
-                        return (-1);
-                }
-        }
 
-        if (g_socket_rxmem != 0) {
-                o = g_socket_rxmem;
-                if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &o, sizeof (o)) != 0) { 
-                        fprintf(stderr, "cannot set receive buffer size: %s\n", strerror(errno));
-                        return (-1);
+        for (rport = IPPORT_RESERVED - 1; rport > IPPORT_RESERVED / 2; --rport) {
+                fd = socket(PF_INET, SOCK_STREAM, 0); 
+                if ( fd < 0 ) { 
+                        fprintf(stderr, "socket() failed: %s\n", strerror(errno)); 
+                        return -1; 
                 }
-        }
 
-        if (g_socket_txmem != 0) {
-                o = g_socket_txmem;
-                if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &o, sizeof (o)) != 0) { 
-                        fprintf(stderr, "cannot set send buffer size: %s\n", strerror(errno));
-                        return (-1);
+                o = 1;
+                rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, 
+                                &o, sizeof(o));
+                
+                locaddr.sin_port = htons(rport);
+                rc = bind(fd, (struct sockaddr *)&locaddr, sizeof(locaddr)); 
+                if (rc == 0 || errno == EACCES) {
+                        rc = connect(fd, (struct sockaddr *)&srvaddr, sizeof(srvaddr));
+                        if (rc == 0) {
+                                break;
+                        } else if (errno != EADDRINUSE) {
+                                fprintf(stderr, "Error connecting to host: %s\n", strerror(errno));
+                                close(fd);
+                                return -1;
+                        }
+                } else if (errno != EADDRINUSE) {
+                        fprintf(stderr, "Error binding to port %d: %d: %s\n", port, errno, strerror(errno));
+                        close(fd);
+                        return -1;
                 }
         }
 
-        rc = connect(fd, (struct sockaddr *)&srvaddr, sizeof(srvaddr));
-        if ( rc == -1 ) { 
-                fprintf(stderr, "connect() failed: %s\n", strerror(errno));
+        if (rport == IPPORT_RESERVED / 2) {
+                fprintf(stderr,
+                        "Warning: all privileged ports are in use.\n"); 
                 return -1;
         }
 
-        olen = sizeof (txmem);
-        if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, &txmem, &olen) != 0)
-                fprintf (stderr, "Can't get send buffer size: %s\n", strerror (errno));
-        olen = sizeof (rxmem);
-        if (getsockopt (fd, SOL_SOCKET, SO_RCVBUF, &rxmem, &olen) != 0)
-                fprintf (stderr, "Can't get receive buffer size: %s\n", strerror (errno));
-        olen = sizeof (nonagle);
-        if (getsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &nonagle, &olen) != 0)
-                fprintf (stderr, "Can't get nagle: %s\n", strerror (errno));
-
-        printf("Connected host: %s snd: %d rcv: %d nagle: %s type: %s\n", 
-               argv[1], txmem, rxmem, nonagle ? "Disabled" : "Enabled",
+        printf("Connected host: %s type: %s\n", 
+               argv[1],
                (type == SOCKNAL_CONN_ANY) ? "A" :
                (type == SOCKNAL_CONN_CONTROL) ? "C" :
                (type == SOCKNAL_CONN_BULK_IN) ? "I" :
@@ -782,7 +1039,6 @@ int jt_ptl_connect(int argc, char **argv)
         PCFG_INIT(pcfg, NAL_CMD_REGISTER_PEER_FD);
         pcfg.pcfg_nal = g_nal;
         pcfg.pcfg_fd = fd;
-        pcfg.pcfg_flags = bind_irq;
         pcfg.pcfg_misc = type;
         
         rc = pcfg_ioctl(&pcfg);
@@ -800,11 +1056,12 @@ int jt_ptl_connect(int argc, char **argv)
                 fprintf(stderr, "close failed: %d\n", rc);
 
         return 0;
+#endif /* HAVE_CONNECT */
 }
 
 int jt_ptl_disconnect(int argc, char **argv)
 {
-        struct portals_cfg        pcfg;
+        struct portals_cfg       pcfg;
         ptl_nid_t                nid = PTL_NID_ANY;
         __u32                    ipaddr = 0;
         int                      rc;
@@ -814,16 +1071,18 @@ int jt_ptl_disconnect(int argc, char **argv)
                 return 0;
         }
 
-        if (!g_nal_is_compatible (NULL, SOCKNAL, 0))
+        if (!g_nal_is_compatible (NULL, SOCKNAL, RANAL, 
+                                  OPENIBNAL, IIBNAL, VIBNAL, 0))
                 return 0;
 
         if (argc >= 2 &&
-            ptl_parse_nid (&nid, argv[1]) != 0) {
+            ptl_parse_anynid (&nid, argv[1]) != 0) {
                 fprintf (stderr, "Can't parse nid %s\n", argv[1]);
                 return -1;
         }
 
-        if (argc >= 3 &&
+        if (g_nal_is_compatible (NULL, SOCKNAL, 0) &&
+            argc >= 3 &&
             ptl_parse_ipaddr (&ipaddr, argv[2]) != 0) {
                 fprintf (stderr, "Can't parse ip addr %s\n", argv[2]);
                 return -1;
@@ -845,7 +1104,7 @@ int jt_ptl_disconnect(int argc, char **argv)
 
 int jt_ptl_push_connection (int argc, char **argv)
 {
-        struct portals_cfg        pcfg;
+        struct portals_cfg       pcfg;
         int                      rc;
         ptl_nid_t                nid = PTL_NID_ANY;
         __u32                    ipaddr = 0;
@@ -859,7 +1118,7 @@ int jt_ptl_push_connection (int argc, char **argv)
                 return -1;
         
         if (argc > 1 &&
-            ptl_parse_nid (&nid, argv[1]) != 0) {
+            ptl_parse_anynid (&nid, argv[1]) != 0) {
                 fprintf(stderr, "Can't parse nid: %s\n", argv[1]);
                 return -1;
         }
@@ -886,7 +1145,7 @@ int jt_ptl_push_connection (int argc, char **argv)
 int 
 jt_ptl_print_active_txs (int argc, char **argv)
 {
-        struct portals_cfg        pcfg;
+        struct portals_cfg       pcfg;
         int                      index;
         int                      rc;
 
@@ -901,12 +1160,11 @@ jt_ptl_print_active_txs (int argc, char **argv)
                 if (rc != 0)
                         break;
 
-                printf ("%p: %5s payload %6d bytes to "LPX64" via "LPX64" by pid %6d: %s, %s, state %d\n",
-                        pcfg.pcfg_pbuf1,
+                printf ("%5s payload %6d bytes to "LPX64" via "LPX64" by pid %6d: %s, %s, state %d\n",
                         pcfg.pcfg_count == PTL_MSG_ACK ? "ACK" :
                         pcfg.pcfg_count == PTL_MSG_PUT ? "PUT" :
                         pcfg.pcfg_count == PTL_MSG_GET ? "GET" :
-                        pcfg.pcfg_count == PTL_MSG_REPLY ? "REPLY" : "<wierd message>",
+                        pcfg.pcfg_count == PTL_MSG_REPLY ? "REPLY" : "<weird message>",
                         pcfg.pcfg_size,
                         pcfg.pcfg_nid,
                         pcfg.pcfg_nid2,
@@ -916,8 +1174,15 @@ jt_ptl_print_active_txs (int argc, char **argv)
                         pcfg.pcfg_flags >> 2);
         }
 
-        if (index == 0)
-                printf ("<no active descs>\n");
+        if (index == 0) {
+                if (errno == ENOENT) {
+                        printf ("<no active descs>\n");
+                } else {
+                        fprintf(stderr, "Error getting active transmits list: "
+                                "%s: check dmesg.\n",
+                                strerror(errno));
+                }
+        }
         return 0;
 }
 
@@ -1008,7 +1273,7 @@ int jt_ptl_mynid(int argc, char **argv)
         char *nidstr;
         struct portals_cfg pcfg;
         ptl_nid_t mynid;
-        
+
         if (argc > 2) {
                 fprintf(stderr, "usage: %s [NID]\n", argv[0]);
                 fprintf(stderr, "NID defaults to the primary IP address of the machine.\n");
@@ -1042,7 +1307,8 @@ int jt_ptl_mynid(int argc, char **argv)
                 fprintf(stderr, "setting my NID failed: %s\n",
                        strerror(errno));
         else
-                printf("registered my nid "LPX64" (%s)\n", mynid, hostname);
+                printf("registered my nid "LPX64" (%s)\n", 
+                       ptl_nid2u64(mynid), hostname);
         return 0;
 }
 
@@ -1065,7 +1331,7 @@ jt_ptl_fail_nid (int argc, char **argv)
 
         if (!strcmp (argv[1], "_all_"))
                 nid = PTL_NID_ANY;
-        else if (ptl_parse_nid (&nid, argv[1]) != 0)
+        else if (ptl_parse_anynid (&nid, argv[1]) != 0)
         {
                 fprintf (stderr, "Can't parse nid \"%s\"\n", argv[1]);
                 return (-1);
@@ -1094,57 +1360,40 @@ jt_ptl_fail_nid (int argc, char **argv)
 }
 
 int
-jt_ptl_rxmem (int argc, char **argv)
+jt_ptl_loopback (int argc, char **argv)
 {
-        int   size;
-        
-        if (argc > 1)
-        {
-                if (Parser_size (&size, argv[1]) != 0 || size < 0)
-                {
-                        fprintf (stderr, "Can't parse size %s\n", argv[1]);
-                        return (0);
-                }
-
-                g_socket_rxmem = size;
-        }
-        printf ("Socket rmem = %d\n", g_socket_rxmem);        
-        return (0);
-}
+        int                      rc;
+        int                      set;
+        int                      enable;
+        struct portal_ioctl_data data;
 
-int
-jt_ptl_txmem (int argc, char **argv)
-{
-        int   size;
-        
-        if (argc > 1)
+        if (argc > 2)
         {
-                if (Parser_size (&size, argv[1]) != 0 || size < 0)
-                {
-                        fprintf (stderr, "Can't parse size %s\n", argv[1]);
-                        return (0);
-                }
-                g_socket_txmem = size;
+                fprintf (stderr, "usage: %s [on|off]\n", argv[0]);
+                return (0);
         }
-        printf ("Socket txmem = %d\n", g_socket_txmem);
-        return (0);
-}
-
-int
-jt_ptl_nagle (int argc, char **argv)
-{
-        int enable;
+        
+        if (!g_nal_is_set())
+                return (-1);
 
-        if (argc > 1)
-        {
-                if (Parser_bool (&enable, argv[1]) != 0)
-                {
-                        fprintf (stderr, "Can't parse boolean %s\n", argv[1]);
-                        return (-1);
-                }
-                g_socket_nonagle = !enable;
+        set = argc > 1;
+        if (set && ptl_parse_bool (&enable, argv[1]) != 0) {
+                fprintf (stderr, "Can't parse boolean %s\n", argv[1]);
+                return (-1);
         }
-        printf ("Nagle %s\n", g_socket_nonagle ? "disabled" : "enabled");
+
+        PORTAL_IOC_INIT (data);
+        data.ioc_nal = g_nal;
+        data.ioc_flags = enable;
+        data.ioc_misc = set;
+        
+        rc = l_ioctl (PORTALS_DEV_ID, IOC_PORTAL_LOOPBACK, &data);
+        if (rc < 0)
+                fprintf (stderr, "IOC_PORTAL_FAIL_NID failed: %s\n",
+                         strerror (errno));
+        else
+                printf ("loopback %s\n", data.ioc_flags ? "enabled" : "disabled");
+        
         return (0);
 }
 
@@ -1260,7 +1509,8 @@ jt_ptl_del_route (int argc, char **argv)
         rc = pcfg_ioctl(&pcfg);
         if (rc != 0) 
         {
-                fprintf (stderr, "NAL_CMD_DEL_ROUTE ("LPX64") failed: %s\n", nid, strerror (errno));
+                fprintf (stderr, "NAL_CMD_DEL_ROUTE ("LPX64") failed: %s\n", 
+                         ptl_nid2u64(nid), strerror (errno));
                 return (-1);
         }
         
@@ -1290,7 +1540,7 @@ jt_ptl_notify_router (int argc, char **argv)
                 return (-1);
         }
 
-        if (Parser_bool (&enable, argv[2]) != 0) {
+        if (ptl_parse_bool (&enable, argv[2]) != 0) {
                 fprintf (stderr, "Can't parse boolean %s\n", argv[2]);
                 return (-1);
         }
@@ -1322,7 +1572,7 @@ jt_ptl_notify_router (int argc, char **argv)
         if (rc != 0) 
         {
                 fprintf (stderr, "NAL_CMD_NOTIFY_ROUTER ("LPX64") failed: %s\n",
-                         nid, strerror (errno));
+                         ptl_nid2u64(nid), strerror (errno));
                 return (-1);
         }
         
@@ -1365,6 +1615,11 @@ jt_ptl_print_routes (int argc, char **argv)
                         ptl_nid2str (buffer[2], nid2),
                         alive ? "up" : "down");
         }
+
+        if (index == 0 && errno != ENOENT) {
+                fprintf(stderr, "Error getting routes: %s: check dmesg.\n",
+                        strerror(errno));
+        }
         return (0);
 }
 
@@ -1405,9 +1660,19 @@ lwt_snapshot(cycles_t *now, int *ncpu, int *totalsize,
                 return (-1);
         }
 
+        /* crappy overloads */
+        if (data.ioc_nid2 != sizeof(lwt_event_t) ||
+            data.ioc_nid3 != offsetof(lwt_event_t, lwte_where)) {
+                fprintf(stderr,"kernel/user LWT event mismatch %d(%d),%d(%d)\n",
+                        (int)data.ioc_nid2, sizeof(lwt_event_t),
+                        (int)data.ioc_nid3,
+                        (int)offsetof(lwt_event_t, lwte_where));
+                return (-1);
+        }
+
         LASSERT (data.ioc_count != 0);
         LASSERT (data.ioc_misc != 0);
-        
+
         if (now != NULL)
                 *now = data.ioc_nid;
 
@@ -1478,15 +1743,21 @@ lwt_put_string(char *ustr)
 static int
 lwt_print(FILE *f, cycles_t t0, cycles_t tlast, double mhz, int cpu, lwt_event_t *e)
 {
-        char            whenstr[32];
+#ifndef __WORDSIZE
+# error "__WORDSIZE not defined"
+#elif __WORDSIZE == 32
+# define XFMT "%#010lx"
+#elif __WORDSIZE== 64
+# define XFMT "%#018lx"
+#else
+# error "Unexpected __WORDSIZE"
+#endif
         char           *where = lwt_get_string(e->lwte_where);
 
         if (where == NULL)
                 return (-1);
 
-        sprintf(whenstr, LPD64, e->lwte_when - t0);
-
-        fprintf(f, "%#010lx %#010lx %#010lx %#010lx: %#010lx %1d %10.6f %10.2f %s\n",
+        fprintf(f, XFMT" "XFMT" "XFMT" "XFMT": "XFMT" %2d %10.6f %10.2f %s\n",
                 e->lwte_p1, e->lwte_p2, e->lwte_p3, e->lwte_p4,
                 (long)e->lwte_task, cpu, (e->lwte_when - t0) / (mhz * 1000000.0),
                 (t0 == e->lwte_when) ? 0.0 : (e->lwte_when - tlast) / mhz,
@@ -1495,6 +1766,7 @@ lwt_print(FILE *f, cycles_t t0, cycles_t tlast, double mhz, int cpu, lwt_event_t
         lwt_put_string(where);
 
         return (0);
+#undef XFMT
 }
 
 double
@@ -1520,13 +1792,14 @@ get_cycles_per_usec ()
 int
 jt_ptl_lwt(int argc, char **argv)
 {
+        const int       lwt_max_cpus = 32;
         int             ncpus;
         int             totalspace;
         int             nevents_per_cpu;
         lwt_event_t    *events;
-        lwt_event_t    *cpu_event[LWT_MAX_CPUS + 1];
-        lwt_event_t    *next_event[LWT_MAX_CPUS];
-        lwt_event_t    *first_event[LWT_MAX_CPUS];
+        lwt_event_t    *cpu_event[lwt_max_cpus + 1];
+        lwt_event_t    *next_event[lwt_max_cpus];
+        lwt_event_t    *first_event[lwt_max_cpus];
         int             cpu;
         lwt_event_t    *e;
         int             rc;
@@ -1537,6 +1810,7 @@ jt_ptl_lwt(int argc, char **argv)
         cycles_t        tnow;
         struct timeval  tvnow;
         int             printed_date = 0;
+        int             nlines = 0;
         FILE           *f = stdout;
 
         if (argc < 2 ||
@@ -1567,9 +1841,9 @@ jt_ptl_lwt(int argc, char **argv)
         if (lwt_snapshot(NULL, &ncpus, &totalspace, NULL, 0) != 0)
                 return (-1);
 
-        if (ncpus > LWT_MAX_CPUS) {
+        if (ncpus > lwt_max_cpus) {
                 fprintf(stderr, "Too many cpus: %d (%d)\n", 
-                        ncpus, LWT_MAX_CPUS);
+                        ncpus, lwt_max_cpus);
                 return (-1);
         }
 
@@ -1686,6 +1960,12 @@ jt_ptl_lwt(int argc, char **argv)
                         rc = lwt_print(f, t0, tlast, mhz, cpu, next_event[cpu]);
                         if (rc != 0)
                                 break;
+
+                        if (++nlines % 10000 == 0 && f != stdout) {
+                                /* show some activity... */
+                                printf(".");
+                                fflush (stdout);
+                        }
                 }
 
                 tlast = next_event[cpu]->lwte_when;
@@ -1699,8 +1979,10 @@ jt_ptl_lwt(int argc, char **argv)
                         next_event[cpu] = NULL;
         }
 
-        if (f != stdout)
+        if (f != stdout) {
+                printf("\n");
                 fclose(f);
+        }
 
         free(events);
         return (0);