LU-9121 lnet: Add the ioctl handler for "add policy"

The ioctl handler for "add policy" de-marshals the
udsp rules passed from userspace and then add the
rules if there is no copy of the same rules already
added. Apply the rules to the existing LNet
constructs.

Change-Id: Ia76ecdea6de94e1dbcfe71bfcb5a1753fb3c874d
Test-Parameters: trivial testlist=lnet-selftest,sanity-lnet
Signed-off-by: Sonia Sharma <sharmaso@whamcloud.com>
Signed-off-by: Amir Shehata <ashehata@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/34514
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Chris Horn <chris.horn@hpe.com>

diff --git a/lnet/include/uapi/linux/lnet/libcfs_ioctl.h b/lnet/include/uapi/linux/lnet/libcfs_ioctl.h
index e6419f0..2ac0c31 100644 (file)
--- a/lnet/include/uapi/linux/lnet/libcfs_ioctl.h
+++ b/lnet/include/uapi/linux/lnet/libcfs_ioctl.h
@@ -149,7 +149,8 @@ struct libcfs_ioctl_data {
 #define IOC_LIBCFS_SET_HEALHV             _IOWR(IOC_LIBCFS_TYPE, 102, IOCTL_CONFIG_SIZE)
 #define IOC_LIBCFS_GET_LOCAL_HSTATS       _IOWR(IOC_LIBCFS_TYPE, 103, IOCTL_CONFIG_SIZE)
 #define IOC_LIBCFS_GET_RECOVERY_QUEUE     _IOWR(IOC_LIBCFS_TYPE, 104, IOCTL_CONFIG_SIZE)
-#define IOC_LIBCFS_MAX_NR                                        104
+#define IOC_LIBCFS_ADD_UDSP               _IOWR(IOC_LIBCFS_TYPE, 105, IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_MAX_NR                                        105
 
 extern int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
 

diff --git a/lnet/lnet/api-ni.c b/lnet/lnet/api-ni.c
index d447051..45fa7c7 100644 (file)
--- a/lnet/lnet/api-ni.c
+++ b/lnet/lnet/api-ni.c
@@ -4183,6 +4183,22 @@ LNetCtl(unsigned int cmd, void *arg)
                return 0;
        }
 
+       case IOC_LIBCFS_ADD_UDSP: {
+               struct lnet_ioctl_udsp *ioc_udsp = arg;
+               __u32 bulk_size = ioc_udsp->iou_hdr.ioc_len;
+
+               mutex_lock(&the_lnet.ln_api_mutex);
+               rc = lnet_udsp_demarshal_add(arg, bulk_size);
+               if (!rc) {
+                       rc = lnet_udsp_apply_policies(NULL, false);
+                       CDEBUG(D_NET, "policy application returned %d\n", rc);
+                       rc = 0;
+               }
+               mutex_unlock(&the_lnet.ln_api_mutex);
+
+               return rc;
+       }
+
        default:
                ni = lnet_net2ni_addref(data->ioc_net);
                if (ni == NULL)