vmxnet3 device driver

Implemented vmxnet3 deivice driver for VMWare ESXi. Tested with Ubuntu 18.04
connected to ESXi 6.0

Ubuntu-18.04 (VPP) --- ESXi-6.0

Change-Id: I85fbc86f2d8532b017bc4271612d17e24e498e4d
Signed-off-by: Steven Luong  <sluong@cisco.com>

1 files changed, 252 insertions, 0 deletions

diff --git a/src/plugins/vmxnet3/vmxnet3_api.c b/src/plugins/vmxnet3/vmxnet3_api.c
new file mode 100644
index 00000000000..e0c2cfa6cf0
--- /dev/null
+++ b/src/plugins/vmxnet3/vmxnet3_api.c
@@ -0,0 +1,252 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vlib/pci/pci.h>
+#include <vnet/ethernet/ethernet.h>
+
+#include <vmxnet3/vmxnet3.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+/* define message IDs */
+#include <vmxnet3/vmxnet3_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <vmxnet3/vmxnet3_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <vmxnet3/vmxnet3_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vmxnet3/vmxnet3_all_api_h.h>
+#undef vl_printfun
+
+/* get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <vmxnet3/vmxnet3_all_api_h.h>
+#undef vl_api_version
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_vmxnet3_plugin_api_msg	\
+_(VMXNET3_CREATE, vmxnet3_create)	\
+_(VMXNET3_DELETE, vmxnet3_delete)       \
+_(VMXNET3_DUMP, vmxnet3_dump)
+
+static void
+vl_api_vmxnet3_create_t_handler (vl_api_vmxnet3_create_t * mp)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  vmxnet3_main_t *vmxm = &vmxnet3_main;
+  vl_api_vmxnet3_create_reply_t *rmp;
+  vmxnet3_create_if_args_t args;
+  int rv;
+
+  memset (&args, 0, sizeof (vmxnet3_create_if_args_t));
+
+  args.enable_elog = ntohl (mp->enable_elog);
+  args.addr.as_u32 = ntohl (mp->pci_addr);
+  args.rxq_size = ntohs (mp->rxq_size);
+  args.txq_size = ntohs (mp->txq_size);
+
+  vmxnet3_create_if (vm, &args);
+  rv = args.rv;
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_VMXNET3_CREATE_REPLY + vmxm->msg_id_base,
+    ({
+      rmp->sw_if_index = ntohl (args.sw_if_index);
+    }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_vmxnet3_delete_t_handler (vl_api_vmxnet3_delete_t * mp)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  vnet_main_t *vnm = vnet_get_main ();
+  vmxnet3_main_t *vmxm = &vmxnet3_main;
+  vl_api_vmxnet3_delete_reply_t *rmp;
+  vmxnet3_device_t *vd;
+  vnet_hw_interface_t *hw;
+  int rv = 0;
+
+  hw = vnet_get_sup_hw_interface (vnm, htonl (mp->sw_if_index));
+  if (hw == NULL || vmxnet3_device_class.index != hw->dev_class_index)
+    {
+      rv = VNET_API_ERROR_INVALID_INTERFACE;
+      goto reply;
+    }
+
+  vd = pool_elt_at_index (vmxm->devices, hw->dev_instance);
+
+  vmxnet3_delete_if (vm, vd);
+
+reply:
+  REPLY_MACRO (VL_API_VMXNET3_DELETE_REPLY + vmxm->msg_id_base);
+}
+
+static void
+send_vmxnet3_details (vl_api_registration_t * reg, vmxnet3_device_t * vd,
+		      u16 rx_qid, vmxnet3_rxq_t * rxq, u16 tx_qid,
+		      vmxnet3_txq_t * txq, vnet_sw_interface_t * swif,
+		      u8 * interface_name, u32 context)
+{
+  vl_api_vmxnet3_details_t *mp;
+  vnet_main_t *vnm = vnet_get_main ();
+  vmxnet3_main_t *vmxm = &vmxnet3_main;
+  vnet_hw_interface_t *hwif;
+  vmxnet3_rx_ring *ring;
+  u16 rid;
+
+  hwif = vnet_get_sup_hw_interface (vnm, swif->sw_if_index);
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  memset (mp, 0, sizeof (*mp));
+
+  mp->_vl_msg_id = htons (VL_API_VMXNET3_DETAILS + vmxm->msg_id_base);
+  mp->context = context;
+
+  mp->sw_if_index = htonl (swif->sw_if_index);
+  strncpy ((char *) mp->if_name,
+	   (char *) interface_name, ARRAY_LEN (mp->if_name) - 1);
+
+  if (hwif->hw_address)
+    memcpy (mp->hw_addr, hwif->hw_address, ARRAY_LEN (mp->hw_addr));
+
+  mp->version = vd->version;
+  mp->pci_addr = ntohl (vd->pci_addr.as_u32);
+
+  mp->rx_qsize = htons (rxq->size);
+  mp->rx_next = htons (rxq->rx_comp_ring.next);
+  for (rid = 0; rid < VMXNET3_RX_RING_SIZE; rid++)
+    {
+      ring = &rxq->rx_ring[rid];
+      mp->rx_fill[rid] = htons (ring->fill);
+      mp->rx_produce[rid] = htons (ring->produce);
+      mp->rx_consume[rid] = htons (ring->consume);
+    }
+  mp->tx_qsize = htons (txq->size);
+  mp->tx_next = htons (txq->tx_comp_ring.next);
+  mp->tx_produce = htons (txq->tx_ring.produce);
+  mp->tx_consume = htons (txq->tx_ring.consume);
+
+  mp->admin_up_down = (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? 1 : 0;
+
+  vl_api_send_msg (reg, (u8 *) mp);
+}
+
+/**
+ * @brief Message handler for vmxnet3_dump API.
+ * @param mp vl_api_vmxnet3_dump_t * mp the api message
+ */
+static void
+vl_api_vmxnet3_dump_t_handler (vl_api_vmxnet3_dump_t * mp)
+{
+  vmxnet3_main_t *vmxm = &vmxnet3_main;
+  vnet_main_t *vnm = vnet_get_main ();
+  vnet_sw_interface_t *swif;
+  vmxnet3_device_t *vd;
+  u8 *if_name = 0;
+  vl_api_registration_t *reg;
+  vmxnet3_rxq_t *rxq;
+  vmxnet3_txq_t *txq;
+  u16 qid = 0;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  /* *INDENT-OFF* */
+  pool_foreach (vd, vmxm->devices,
+    ({
+      swif = vnet_get_sw_interface (vnm, vd->sw_if_index);
+      if_name = format (if_name, "%U%c", format_vnet_sw_interface_name, vnm,
+			swif, 0);
+      rxq = vec_elt_at_index (vd->rxqs, qid);
+      txq = vec_elt_at_index (vd->txqs, qid);
+      send_vmxnet3_details (reg, vd, qid, rxq, qid, txq, swif, if_name,
+			    mp->context);
+      _vec_len (if_name) = 0;
+    }));
+  /* *INDENT-ON* */
+
+  vec_free (if_name);
+}
+
+#define vl_msg_name_crc_list
+#include <vmxnet3/vmxnet3_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (vmxnet3_main_t * vmxm, api_main_t * am)
+{
+#define _(id,n,crc) \
+  vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + vmxm->msg_id_base);
+  foreach_vl_msg_name_crc_vmxnet3;
+#undef _
+}
+
+/* set tup the API message handling tables */
+clib_error_t *
+vmxnet3_plugin_api_hookup (vlib_main_t * vm)
+{
+  vmxnet3_main_t *vmxm = &vmxnet3_main;
+  api_main_t *am = &api_main;
+  u8 *name;
+
+  /* construct the API name */
+  name = format (0, "vmxnet3_%08x%c", api_version, 0);
+
+  /* ask for a correctly-sized block of API message decode slots */
+  vmxm->msg_id_base = vl_msg_api_get_msg_ids
+    ((char *) name, VL_MSG_FIRST_AVAILABLE);
+
+#define _(N,n)							\
+    vl_msg_api_set_handlers((VL_API_##N + vmxm->msg_id_base),	\
+			   #n,					\
+			   vl_api_##n##_t_handler,		\
+			   vl_noop_handler,			\
+			   vl_api_##n##_t_endian,		\
+			   vl_api_##n##_t_print,		\
+			   sizeof(vl_api_##n##_t), 1);
+  foreach_vmxnet3_plugin_api_msg;
+#undef _
+
+  /* set up the (msg_name, crc, message-id) table */
+  setup_message_id_table (vmxm, am);
+
+  vec_free (name);
+  return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */