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* Landed b_cray_portals_merge.
[fs/lustre-release.git] / lnet / lnet / module.c
index 012d3d9..40e9da4 100644 (file)
 
 #include <portals/lib-p30.h>
 #include <portals/p30.h>
+#include <portals/nal.h>
 #include <linux/kp30.h>
 #include <linux/kpr.h>
 #include <linux/portals_compat25.h>
 
 extern void (kping_client)(struct portal_ioctl_data *);
 
-struct nal_cmd_handler {
-        nal_cmd_handler_t nch_handler;
-        void * nch_private;
-};
-
-static struct nal_cmd_handler nal_cmd[NAL_MAX_NR + 1];
-static DECLARE_MUTEX(nal_cmd_sem);
-
-
-static int
-kportal_add_route(int gateway_nalid, ptl_nid_t gateway_nid, 
-                  ptl_nid_t lo_nid, ptl_nid_t hi_nid)
-{
-        int rc;
-        kpr_control_interface_t *ci;
-
-        ci = (kpr_control_interface_t *) PORTAL_SYMBOL_GET (kpr_control_interface);
-        if (ci == NULL)
-                return (-ENODEV);
-
-        rc = ci->kprci_add_route (gateway_nalid, gateway_nid, lo_nid, hi_nid);
-
-        PORTAL_SYMBOL_PUT(kpr_control_interface);
-        return (rc);
-}
-
-static int
-kportal_del_route(int gw_nalid, ptl_nid_t gw_nid, 
-                  ptl_nid_t lo, ptl_nid_t hi)
-{
-        int rc;
-        kpr_control_interface_t *ci;
-
-        ci = (kpr_control_interface_t *)PORTAL_SYMBOL_GET(kpr_control_interface);
-        if (ci == NULL)
-                return (-ENODEV);
-
-        rc = ci->kprci_del_route (gw_nalid, gw_nid, lo, hi);
-
-        PORTAL_SYMBOL_PUT(kpr_control_interface);
-        return (rc);
-}
-
-static int
-kportal_notify_router (int gw_nalid, ptl_nid_t gw_nid,
-                       int alive, time_t when)
-{
-        int rc;
-        kpr_control_interface_t *ci;
-
-        /* No error if router not preset.  Sysadmin is allowed to notify
-         * _everywhere_ when a NID boots or crashes, even if they know
-         * nothing of the peer. */
-        ci = (kpr_control_interface_t *)PORTAL_SYMBOL_GET(kpr_control_interface);
-        if (ci == NULL)
-                return (0);
-
-        rc = ci->kprci_notify (gw_nalid, gw_nid, alive, when);
-
-        PORTAL_SYMBOL_PUT(kpr_control_interface);
-        return (rc);
-}
-
-static int
-kportal_get_route(int index, __u32 *gateway_nalidp, ptl_nid_t *gateway_nidp,
-                  ptl_nid_t *lo_nidp, ptl_nid_t *hi_nidp, int *alivep)
-{
-        int       gateway_nalid;
-        ptl_nid_t gateway_nid;
-        ptl_nid_t lo_nid;
-        ptl_nid_t hi_nid;
-        int       alive;
-        int       rc;
-        kpr_control_interface_t *ci;
-
-        ci = (kpr_control_interface_t *) PORTAL_SYMBOL_GET(kpr_control_interface);
-        if (ci == NULL)
-                return (-ENODEV);
-
-        rc = ci->kprci_get_route(index, &gateway_nalid, &gateway_nid,
-                                 &lo_nid, &hi_nid, &alive);
-
-        if (rc == 0) {
-                CDEBUG(D_IOCTL, "got route [%d] %d "LPX64":"LPX64" - "LPX64", %s\n",
-                       index, gateway_nalid, gateway_nid, lo_nid, hi_nid,
-                       alive ? "up" : "down");
-
-                *gateway_nalidp = (__u32)gateway_nalid;
-                *gateway_nidp   = gateway_nid;
-                *lo_nidp        = lo_nid;
-                *hi_nidp        = hi_nid;
-                *alivep         = alive;
-        }
-
-        PORTAL_SYMBOL_PUT (kpr_control_interface);
-        return (rc);
-}
-
-static int 
-kportal_router_cmd(struct portals_cfg *pcfg, void * private)
-{
-        int err = -EINVAL;
-        ENTRY;
-
-        switch(pcfg->pcfg_command) {
-        default:
-                CDEBUG(D_IOCTL, "Inappropriate cmd: %d\n", pcfg->pcfg_command);
-                break;
-                
-        case NAL_CMD_ADD_ROUTE:
-                CDEBUG(D_IOCTL, "Adding route: [%d] "LPU64" : "LPU64" - "LPU64"\n",
-                       pcfg->pcfg_nal, pcfg->pcfg_nid, 
-                       pcfg->pcfg_nid2, pcfg->pcfg_nid3);
-                err = kportal_add_route(pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
-                                        pcfg->pcfg_nid2, pcfg->pcfg_nid3);
-                break;
-
-        case NAL_CMD_DEL_ROUTE:
-                CDEBUG (D_IOCTL, "Removing routes via [%d] "LPU64" : "LPU64" - "LPU64"\n",
-                        pcfg->pcfg_gw_nal, pcfg->pcfg_nid, 
-                        pcfg->pcfg_nid2, pcfg->pcfg_nid3);
-                err = kportal_del_route (pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
-                                         pcfg->pcfg_nid2, pcfg->pcfg_nid3);
-                break;
-
-        case NAL_CMD_NOTIFY_ROUTER: {
-                CDEBUG (D_IOCTL, "Notifying peer [%d] "LPU64" %s @ %ld\n",
-                        pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
-                        pcfg->pcfg_flags ? "Enabling" : "Disabling",
-                        (time_t)pcfg->pcfg_nid3);
-                
-                err = kportal_notify_router (pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
-                                             pcfg->pcfg_flags, 
-                                             (time_t)pcfg->pcfg_nid3);
-                break;
-        }
-                
-        case NAL_CMD_GET_ROUTE:
-                CDEBUG (D_IOCTL, "Getting route [%d]\n", pcfg->pcfg_count);
-                err = kportal_get_route(pcfg->pcfg_count, &pcfg->pcfg_gw_nal,
-                                        &pcfg->pcfg_nid, 
-                                        &pcfg->pcfg_nid2, &pcfg->pcfg_nid3,
-                                        &pcfg->pcfg_flags);
-                break;
-        }
-        RETURN(err);
-}
-
-int
-kportal_nal_cmd(struct portals_cfg *pcfg)
-{
-        __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) {
-                CDEBUG(D_IOCTL, "calling handler nal: %d, cmd: %d\n", nal, 
-                       pcfg->pcfg_command);
-                rc = nal_cmd[nal].nch_handler(pcfg, nal_cmd[nal].nch_private);
-        }
-        up(&nal_cmd_sem);
-        RETURN(rc);
-}
-
-ptl_handle_ni_t *
-kportal_get_ni (int nal)
-{
-
-        switch (nal)
-        {
-        case QSWNAL:
-                return (PORTAL_SYMBOL_GET(kqswnal_ni));
-        case SOCKNAL:
-                return (PORTAL_SYMBOL_GET(ksocknal_ni));
-        case GMNAL:
-                return  (PORTAL_SYMBOL_GET(kgmnal_ni));
-        case IBNAL:
-                return  (PORTAL_SYMBOL_GET(kibnal_ni));
-        case TCPNAL:
-                /* userspace NAL */
-                return (NULL);
-        case SCIMACNAL:
-                return  (PORTAL_SYMBOL_GET(kscimacnal_ni));
-        default:
-                /* A warning to a naive caller */
-                CERROR ("unknown nal: %d\n", nal);
-                return (NULL);
-        }
-}
-
-void
-kportal_put_ni (int nal)
-{
-
-        switch (nal)
-        {
-        case QSWNAL:
-                PORTAL_SYMBOL_PUT(kqswnal_ni);
-                break;
-        case SOCKNAL:
-                PORTAL_SYMBOL_PUT(ksocknal_ni);
-                break;
-        case GMNAL:
-                PORTAL_SYMBOL_PUT(kgmnal_ni);
-                break;
-        case IBNAL:
-                PORTAL_SYMBOL_PUT(kibnal_ni);
-                break;
-        case TCPNAL:
-                /* A lesson to a malicious caller */
-                LBUG ();
-        case SCIMACNAL:
-                PORTAL_SYMBOL_PUT(kscimacnal_ni);
-                break;
-        default:
-                CERROR ("unknown nal: %d\n", nal);
-        }
-}
-
-int
-kportal_nal_register(int nal, nal_cmd_handler_t handler, void * private)
-{
-        int rc = 0;
-
-        CDEBUG(D_IOCTL, "Register NAL %d, handler: %p\n", nal, handler);
-
-        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;
-                }
-                up(&nal_cmd_sem);
-        }
-        return rc;
-}
-
-int
-kportal_nal_unregister(int nal)
-{
-        int rc = 0;
-
-        CDEBUG(D_IOCTL, "Unregister NAL %d\n", nal);
-
-        if (nal > 0  && nal <= NAL_MAX_NR) {
-                down(&nal_cmd_sem);
-                nal_cmd[nal].nch_handler = NULL;
-                nal_cmd[nal].nch_private = NULL;
-                up(&nal_cmd_sem);
-        }
-        return rc;
-}
-
 static int kportal_ioctl(struct portal_ioctl_data *data, 
                          unsigned int cmd, unsigned long arg)
 {
-        int err = 0;
+        int err;
         char str[PTL_NALFMT_SIZE];
         ENTRY;
 
@@ -334,68 +78,53 @@ static int kportal_ioctl(struct portal_ioctl_data *data,
         }
 
         case IOC_PORTAL_GET_NID: {
-                const ptl_handle_ni_t *nip;
-                ptl_process_id_t       pid;
+                ptl_handle_ni_t    nih;
+                ptl_process_id_t   pid;
 
                 CDEBUG (D_IOCTL, "Getting nid for nal [%d]\n", data->ioc_nal);
 
-                nip = kportal_get_ni (data->ioc_nal);
-                if (nip == NULL)
+                err = PtlNIInit(data->ioc_nal, 0, NULL, NULL, &nih);
+                if (!(err == PTL_OK || err == PTL_IFACE_DUP))
                         RETURN (-EINVAL);
 
-                err = PtlGetId (*nip, &pid);
+                err = PtlGetId (nih, &pid);
                 LASSERT (err == PTL_OK);
-                kportal_put_ni (data->ioc_nal);
+
+                PtlNIFini(nih);
 
                 data->ioc_nid = pid.nid;
                 if (copy_to_user ((char *)arg, data, sizeof (*data)))
-                        err = -EFAULT;
-                break;
+                        RETURN (-EFAULT);
+                RETURN(0);
         }
 
-        case IOC_PORTAL_NAL_CMD: {
-                struct portals_cfg pcfg;
-
-                LASSERT (data->ioc_plen1 == sizeof(pcfg));
-                err = copy_from_user(&pcfg, (void *)data->ioc_pbuf1, 
-                                     sizeof(pcfg));
-                if ( err ) {
-                        EXIT;
-                        return err;
-                }
-
-                CDEBUG (D_IOCTL, "nal command nal %d cmd %d\n", pcfg.pcfg_nal,
-                        pcfg.pcfg_command);
-                err = kportal_nal_cmd(&pcfg);
-                if (err == 0) {
-                        if (copy_to_user((char *)data->ioc_pbuf1, &pcfg, 
-                                         sizeof (pcfg)))
-                                err = -EFAULT;
-                        if (copy_to_user((char *)arg, data, sizeof (*data)))
-                                err = -EFAULT;
-                }
-                break;
-        }
         case IOC_PORTAL_FAIL_NID: {
-                const ptl_handle_ni_t *nip;
+                ptl_handle_ni_t    nih;
 
                 CDEBUG (D_IOCTL, "fail nid: [%d] "LPU64" count %d\n",
                         data->ioc_nal, data->ioc_nid, data->ioc_count);
 
-                nip = kportal_get_ni (data->ioc_nal);
-                if (nip == NULL)
+                err = PtlNIInit(data->ioc_nal, 0, NULL, NULL, &nih);
+                if (!(err == PTL_OK || err == PTL_IFACE_DUP))
                         return (-EINVAL);
 
-                err = PtlFailNid (*nip, data->ioc_nid, data->ioc_count);
-                kportal_put_ni (data->ioc_nal);
-                break;
+                if (err == PTL_OK) {
+                        /* There's no point in failing an interface that
+                         * came into existance just for this */
+                        err = -EINVAL;
+                } else {
+                        err = PtlFailNid (nih, data->ioc_nid, data->ioc_count);
+                        if (err != PTL_OK)
+                                err = -EINVAL;
+                }
+
+                PtlNIFini(nih);
+                RETURN (err);
         }
         default:
-                err = -EINVAL;
-                break;
+                RETURN(-EINVAL);
         }
-
-        RETURN(err);
+        /* Not Reached */
 }
 
 DECLARE_IOCTL_HANDLER(kportal_ioctl_handler, kportal_ioctl);
@@ -411,30 +140,24 @@ static int init_kportals_module(void)
                 RETURN(rc);
         }
 
-        rc = kportal_nal_register(ROUTER, kportal_router_cmd, NULL);
-        if (rc) {
-                PtlFini();
-                CERROR("kportal_nal_registre: ROUTER error %d\n", rc);
-        }
-
-        if (rc == 0)
-                libcfs_register_ioctl(&kportal_ioctl_handler);
+        rc = libcfs_register_ioctl(&kportal_ioctl_handler);
+        LASSERT (rc == 0);
 
         RETURN(rc);
 }
 
 static void exit_kportals_module(void)
 {
-        libcfs_deregister_ioctl(&kportal_ioctl_handler);
-        kportal_nal_unregister(ROUTER);
+        int rc;
+
+        rc = libcfs_deregister_ioctl(&kportal_ioctl_handler);
+        LASSERT (rc == 0);
+
         PtlFini();
 }
 
-EXPORT_SYMBOL(kportal_nal_register);
-EXPORT_SYMBOL(kportal_nal_unregister);
-EXPORT_SYMBOL(kportal_get_ni);
-EXPORT_SYMBOL(kportal_put_ni);
-EXPORT_SYMBOL(kportal_nal_cmd);
+EXPORT_SYMBOL(ptl_register_nal);
+EXPORT_SYMBOL(ptl_unregister_nal);
 
 EXPORT_SYMBOL(ptl_err_str);
 EXPORT_SYMBOL(lib_dispatch);
@@ -446,7 +169,6 @@ EXPORT_SYMBOL(PtlMDAttach);
 EXPORT_SYMBOL(PtlMDUnlink);
 EXPORT_SYMBOL(PtlNIInit);
 EXPORT_SYMBOL(PtlNIFini);
-EXPORT_SYMBOL(PtlNIDebug);
 EXPORT_SYMBOL(PtlInit);
 EXPORT_SYMBOL(PtlFini);
 EXPORT_SYMBOL(PtlSnprintHandle);