rdma: add rdma_create_v4 that handles flags properly

The _v3 was not handling endianness on flags (e.g. mode).
Marking _v3 as deprecated, but keeping it
as there might be users who learned to preprocess their flag values.

+ Also, format PCI product_name as a vector, not a string.

Type: fix

Change-Id: I50c4b44f3570f02518dbd9a43239c1a37612d24a
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

src/plugins/rdma/api.c

@@ -42,6 +42,8 @@ rdma_api_mode (vl_api_rdma_mode_t mode)
     case RDMA_API_MODE_DV:
       return RDMA_MODE_DV;
     }
+  /* Fail the debug build. Useful for investigating endian issues. */
+  ASSERT (0);
   return RDMA_MODE_AUTO;
 }
 
@@ -79,6 +81,35 @@ rdma_api_rss6 (const vl_api_rdma_rss6_t rss6)
   return RDMA_RSS6_AUTO;
 }
 
+static void
+vl_api_rdma_create_v4_t_handler (vl_api_rdma_create_v4_t *mp)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  rdma_main_t *rm = &rdma_main;
+  vl_api_rdma_create_v4_reply_t *rmp;
+  rdma_create_if_args_t args;
+  int rv;
+
+  clib_memset (&args, 0, sizeof (rdma_create_if_args_t));
+
+  args.ifname = mp->host_if;
+  args.name = mp->name;
+  args.rxq_num = mp->rxq_num;
+  args.rxq_size = mp->rxq_size;
+  args.txq_size = mp->txq_size;
+  args.mode = rdma_api_mode (mp->mode);
+  args.disable_striding_rq = 0;
+  args.no_multi_seg = mp->no_multi_seg;
+  args.max_pktlen = mp->max_pktlen;
+  args.rss4 = rdma_api_rss4 (mp->rss4);
+  args.rss6 = rdma_api_rss6 (mp->rss6);
+  rdma_create_if (vm, &args);
+  rv = args.rv;
+
+  REPLY_MACRO2_END (VL_API_RDMA_CREATE_V4_REPLY,
+		    ({ rmp->sw_if_index = args.sw_if_index; }));
+}
+
 static void
 vl_api_rdma_create_v3_t_handler (vl_api_rdma_create_v3_t *mp)
 {

src/plugins/rdma/format.c

@@ -122,8 +122,8 @@ format_rdma_device (u8 * s, va_list * args)
 	      format_vlib_pci_addr, &rd->pci->addr);
   if ((d = vlib_pci_get_device_info (vm, &rd->pci->addr, 0)))
     {
-      s = format (s, "%Uproduct name: %s\n", format_white_space, indent,
-		  d->product_name ? (char *) d->product_name : "");
+      s = format (s, "%Uproduct name: %v\n", format_white_space, indent,
+		  d->product_name);
       s = format (s, "%Upart number: %U\n", format_white_space, indent,
 		  format_vlib_pci_vpd, d->vpd_r, "PN");
       s = format (s, "%Urevision: %U\n", format_white_space, indent,

src/plugins/rdma/rdma.api

@@ -98,6 +98,8 @@ enum rdma_rss6
 };
 
 /** \brief
+    Same as v4, just not an autoendian (expect buggy handling of flag values).
+
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
     @param host_if - Linux netdev interface name
@@ -114,6 +116,9 @@ enum rdma_rss6
 
 define rdma_create_v3
 {
+  option deprecated;
+  option replaced_by="rdma_create_v4";
+
   u32 client_index;
   u32 context;
 
@@ -130,6 +135,38 @@ define rdma_create_v3
   option vat_help = "<host-if ifname> [name <name>] [rx-queue-size <size>] [tx-queue-size <size>] [num-rx-queues <size>] [mode <auto|ibv|dv>] [no-multi-seg] [max-pktlen <size>] [rss <ipv4|ipv4-udp|ipv4-tcp>] [rss <ipv6|ipv6-udp|ipv6-tcp>]";
 };
 
+/** \brief
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param host_if - Linux netdev interface name
+    @param name - new rdma interface name
+    @param rxq_num - number of receive queues (optional)
+    @param rxq_size - receive queue size (optional)
+    @param txq_size - transmit queue size (optional)
+    @param mode - operation mode (optional)
+    @param no_multi_seg (optional) - disable chained buffer RX
+    @param max_pktlen (optional) - maximal RX packet size.
+    @param rss4 (optional) - IPv4 RSS
+    @param rss6 (optional) - IPv6 RSS
+*/
+
+autoendian define rdma_create_v4
+{
+  u32 client_index;
+  u32 context;
+
+  string host_if[64];
+  string name[64];
+  u16 rxq_num [default=1];
+  u16 rxq_size [default=1024];
+  u16 txq_size [default=1024];
+  vl_api_rdma_mode_t mode [default=0];
+  bool no_multi_seg [default=0];
+  u16 max_pktlen [default=0];
+  vl_api_rdma_rss4_t rss4 [default=0];
+  vl_api_rdma_rss6_t rss6 [default=0];
+  option vat_help = "<host-if ifname> [name <name>] [rx-queue-size <size>] [tx-queue-size <size>] [num-rx-queues <size>] [mode <auto|ibv|dv>] [no-multi-seg] [max-pktlen <size>] [rss <ipv4|ipv4-udp|ipv4-tcp>] [rss <ipv6|ipv6-udp|ipv6-tcp>]";
+};
 
 /** \brief
     @param context - sender context, to match reply w/ request
@@ -180,6 +217,19 @@ define rdma_create_v3_reply
     @param sw_if_index - interface index
 */
 
+autoendian define rdma_create_v4_reply
+{
+  u32 context;
+  i32 retval;
+  vl_api_interface_index_t sw_if_index;
+};
+
+/** \brief
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param sw_if_index - interface index
+*/
+
 autoreply define rdma_delete
 {
   u32 client_index;

src/plugins/rdma/test_api.c

@@ -189,6 +189,41 @@ api_rdma_create_v3 (vat_main_t *vam)
   return ret;
 }
 
+static int
+api_rdma_create_v4 (vat_main_t *vam)
+{
+  vl_api_rdma_create_v4_t *mp;
+  rdma_create_if_args_t args;
+  int ret;
+
+  if (!unformat_user (vam->input, unformat_rdma_create_if_args, &args))
+    {
+      clib_warning ("unknown input `%U'", format_unformat_error, vam->input);
+      return -99;
+    }
+
+  M (RDMA_CREATE_V4, mp);
+
+  snprintf ((char *) mp->host_if, sizeof (mp->host_if), "%s", args.ifname);
+  if (args.name)
+    snprintf ((char *) mp->name, sizeof (mp->name), "%s", args.name);
+  else
+    mp->name[0] = 0;
+  mp->rxq_num = args.rxq_num;
+  mp->rxq_size = args.rxq_size;
+  mp->txq_size = args.txq_size;
+  mp->mode = api_rdma_mode (args.mode);
+  mp->no_multi_seg = args.no_multi_seg;
+  mp->max_pktlen = args.max_pktlen;
+  mp->rss4 = api_rdma_rss4 (args.rss4);
+  mp->rss6 = api_rdma_rss6 (args.rss6);
+
+  S (mp);
+  W (ret);
+
+  return ret;
+}
+
 /* rdma-create reply handler */
 static void
 vl_api_rdma_create_reply_t_handler (vl_api_rdma_create_reply_t * mp)
@@ -243,6 +278,24 @@ vl_api_rdma_create_v3_reply_t_handler (vl_api_rdma_create_v3_reply_t *mp)
   vam->regenerate_interface_table = 1;
 }
 
+/* rdma-create reply handler v4 */
+static void
+vl_api_rdma_create_v4_reply_t_handler (vl_api_rdma_create_v4_reply_t *mp)
+{
+  vat_main_t *vam = rdma_test_main.vat_main;
+  i32 retval = mp->retval;
+
+  if (retval == 0)
+    {
+      fformat (vam->ofp, "created rdma with sw_if_index %d\n",
+	       ntohl (mp->sw_if_index));
+    }
+
+  vam->retval = retval;
+  vam->result_ready = 1;
+  vam->regenerate_interface_table = 1;
+}
+
 /* rdma delete API */
 static int
 api_rdma_delete (vat_main_t * vam)