From 6fbef2322870bbe1768537caecc3ca06bfd70dd7 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 15 Oct 2018 12:52:30 -0700
Subject: vlib: support Hyper-v/Azure VMBus

This patch adds support for VMBus to the VPP infrastructure.
Since the only device that matters is the netvsc Poll Mode Driver
in DPDK, the infrastructure is much simpler than PCI.

Change-Id: Ie96c897ad9c426716c2398e4528688ce2217419b
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 src/plugins/dpdk/device/init.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'src/plugins/dpdk/device')

diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index c0a927acae5..c5c98ab3359 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -24,6 +24,7 @@
 #include <vnet/ethernet/ethernet.h>
 #include <dpdk/device/dpdk.h>
 #include <vlib/pci/pci.h>
+#include <vlib/vmbus/vmbus.h>
 
 #include <rte_ring.h>
 
@@ -973,6 +974,27 @@ dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
   vlib_pci_free_device_info (d);
 }
 
+static void
+dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
+{
+  clib_error_t *error;
+  vlib_vmbus_addr_t *addrs, *addr = 0;
+
+  addrs = vlib_vmbus_get_all_dev_addrs ();
+
+  /* *INDENT-OFF* */
+  vec_foreach (addr, addrs)
+    {
+      error = vlib_vmbus_bind_to_uio (addr);
+
+      if (error)
+	{
+	  clib_error_report (error);
+	}
+    }
+  /* *INDENT-ON* */
+}
+
 static clib_error_t *
 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
 		    unformat_input_t * input, u8 is_default)
@@ -1121,6 +1143,7 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input)
   int ret, i;
   int num_whitelisted = 0;
   u8 no_pci = 0;
+  u8 no_vmbus = 0;
   u8 no_huge = 0;
   u8 huge_dir = 0;
   u8 file_prefix = 0;
@@ -1214,6 +1237,12 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input)
 	  vec_add1 (conf->blacklist_by_pci_vendor_and_device,
 		    blacklist_entry);
 	}
+      else if (unformat (input, "no-vmbus"))
+	{
+	  no_vmbus = 1;
+	  tmp = format (0, "--no-vmbus%c", 0);
+	  vec_add1 (conf->eal_init_args, tmp);
+	}
 
 #define _(a)                                    \
       else if (unformat(input, #a))             \
@@ -1417,6 +1446,9 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input)
   if (no_pci == 0 && geteuid () == 0)
     dpdk_bind_devices_to_uio (conf);
 
+  if (no_vmbus == 0 && geteuid () == 0)
+    dpdk_bind_vmbus_devices_to_uio (conf);
+
 #define _(x) \
     if (devconf->x == 0 && conf->default_devconf.x > 0) \
       devconf->x = conf->default_devconf.x ;
-- 
cgit 1.2.3-korg