session: add support for memfd segments

[vpp.git] / src / vcl / vppcom.c

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index e28da69..29e5a10 100644 (file)
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -441,6 +441,10 @@ vppcom_connect_to_vpp (char *app_name)
       vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
       vcm->my_client_index = am->my_client_index;
       vcm->app_state = STATE_APP_CONN_VPP;
+
+      if (VPPCOM_DEBUG > 0)
+       clib_warning ("VCL<%d>: app (%s) is connected to VPP!",
+                     getpid (), app_name);
     }
 
   if (VPPCOM_DEBUG > 0)
@@ -471,9 +475,6 @@ vppcom_connect_to_vpp (char *app_name)
       ed->data = rv;
       /* *INDENT-ON* */
     }
-
-  clib_warning ("VCL<%d>: app (%s) is connected to VPP!",
-               getpid (), app_name);
   return rv;
 }
 
@@ -1632,7 +1633,6 @@ vppcom_session_disconnect (u32 session_index)
     {
       if (is_server)
        {
-         svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
          svm_fifo_segment_private_t *seg;
 
          VCL_LOCK_AND_GET_SESSION (session_index, &session);
@@ -1648,7 +1648,7 @@ vppcom_session_disconnect (u32 session_index)
                          session->server_tx_fifo,
                          session->server_tx_fifo->refcnt);
 
-         seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
+         seg = svm_fifo_segment_get_segment (session->sm_seg_index);
          svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
                                      FIFO_SEGMENT_RX_FREELIST);
          svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
@@ -4360,7 +4360,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
              ELOG_TYPE_DECLARE (e) =
                {
                  .format = "VPPCOM_ATTR_GET_FLAGS: flags=%x is_nonblk=%d",
-                 .format_args = "i4",
+                 .format_args = "i4i4",
                };
              struct
              {
@@ -4395,7 +4395,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
              ELOG_TYPE_DECLARE (e) =
                {
                  .format = "VPPCOM_ATTR_SET_FLAGS: flags=%x is_nonblk=%d",
-                 .format_args = "i4",
+                 .format_args = "i4i4",
                };
              struct
              {
@@ -4553,6 +4553,29 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
       if (VPPCOM_DEBUG > 2)
        clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
                      getpid (), rv);
+      if (VPPCOM_DEBUG > 0)
+       {
+         /* *INDENT-OFF* */
+         ELOG_TYPE_DECLARE (e) =
+           {
+             .format = "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd=%s%d buflen=%d",
+             .format_args = "t1i4i4",
+             .n_enum_strings = 2,
+             .enum_strings = {"", "-",},
+           };
+         CLIB_PACKED (struct {
+           u8 sign;
+           u32 data[2];
+         }) * ed;
+
+         ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+
+         ed->sign = (session->libc_epfd < 0);
+         ed->data[0] = abs(session->libc_epfd);
+         ed->data[1] = *buflen;
+         /* *INDENT-ON* */
+       }
+
       break;
 
     case VPPCOM_ATTR_SET_LIBC_EPFD:
@@ -4639,6 +4662,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
          if (VPPCOM_DEBUG > 2)
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, "
                          "buflen %d", getpid (), *(int *) buffer, *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_LISTEN: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4654,6 +4695,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, "
                          "buflen %d, #VPP-TBD#", getpid (),
                          *(int *) buffer, *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_ERROR: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4677,6 +4736,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
                          "buflen %d, #VPP-TBD#", getpid (),
                          *(size_t *) buffer, *(size_t *) buffer, *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_TX_FIFO_LEN: 0x%x buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(size_t *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4692,6 +4769,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          "buflen %d, #VPP-TBD#", getpid (),
                          session->sndbuf_size, session->sndbuf_size,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TX_FIFO_LEN: 0x%x buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = session->sndbuf_size;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4715,6 +4810,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
                          "buflen %d, #VPP-TBD#", getpid (),
                          *(size_t *) buffer, *(size_t *) buffer, *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_RX_FIFO_LEN: 0x%x buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(size_t *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4730,6 +4843,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          "buflen %d, #VPP-TBD#", getpid (),
                          session->sndbuf_size, session->sndbuf_size,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TX_FIFO_LEN: 0x%x buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = session->sndbuf_size;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4747,6 +4878,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_REUSEADDR: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4768,6 +4917,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_REUSEADDR),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_REUSEADDR: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_REUSEADDR);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4785,6 +4953,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_REUSEPORT: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4806,6 +4992,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_REUSEPORT),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_REUSEPORT: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_REUSEPORT);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4823,6 +5028,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_BROADCAST: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4843,6 +5066,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_BROADCAST),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_BROADCAST: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_BROADCAST);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4860,6 +5102,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_V6ONLY: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4879,6 +5139,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          "buflen %d, #VPP-TBD#", getpid (),
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_V6ONLY), *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_V6ONLY: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_V6ONLY);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4896,6 +5175,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_KEEPALIVE: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4916,6 +5213,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_KEEPALIVE),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_KEEPALIVE: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_KEEPALIVE);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4933,6 +5249,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_TCP_NODELAY: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4953,6 +5287,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_TCP_NODELAY),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TCP_NODELAY: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_TCP_NODELAY);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4970,6 +5323,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -4990,6 +5361,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_TCP_KEEPIDLE),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_TCP_KEEPIDLE);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -5007,6 +5397,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -5027,6 +5435,25 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
                          VCL_SESS_ATTR_TEST (session->attr,
                                              VCL_SESS_ATTR_TCP_KEEPINTVL),
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = VCL_SESS_ATTR_TEST (session->attr,
+                                               VCL_SESS_ATTR_TCP_KEEPINTVL);
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -5043,6 +5470,24 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
            clib_warning ("VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, "
                          "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer,
                          *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_GET_TCP_USER_MSS: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = *(int *) buffer;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -5055,9 +5500,27 @@ vppcom_session_attr (uint32_t session_index, uint32_t op,
          session->user_mss = *(u32 *) buffer;
 
          if (VPPCOM_DEBUG > 2)
-           clib_warning ("VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %u, "
+           clib_warning ("VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, "
                          "buflen %d, #VPP-TBD#", getpid (),
                          session->user_mss, *buflen);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "VPPCOM_ATTR_SET_TCP_USER_MSS: %d buflen=%d",
+                 .format_args = "i4i4",
+               };
+
+             struct {
+               u32 data[2];
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, session->elog_track);
+             ed->data[0] = session->user_mss;
+             ed->data[1] = *buflen;
+             /* *INDENT-ON* */
+           }
        }
       else
        rv = VPPCOM_EINVAL;
@@ -5091,6 +5554,23 @@ vppcom_session_recvfrom (uint32_t session_index, void *buffer,
            clib_warning ("VCL<%d>: invalid session, "
                          "sid (%u) has been closed!",
                          getpid (), session_index);
+         if (VPPCOM_DEBUG > 0)
+           {
+             /* *INDENT-OFF* */
+             ELOG_TYPE_DECLARE (e) =
+               {
+                 .format = "invalid session: %d closed",
+                 .format_args = "i4",
+               };
+
+             struct {
+               u32 data;
+             } * ed;
+
+             ed = ELOG_TRACK_DATA (&vcm->elog_main, e, vcm->elog_track);
+             ed->data = session_index;
+             /* *INDENT-ON* */
+           }
          rv = VPPCOM_EBADFD;
          clib_spinlock_unlock (&vcm->sessions_lockp);
          goto done;