bus/vmbus: add devargs support

Take device arguments from command line and put
them in the device devargs.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>

diff --git a/drivers/bus/vmbus/linux/vmbus_bus.c b/drivers/bus/vmbus/linux/vmbus_bus.c
index 52d6a3c..527a6a3 100644 (file)
--- a/drivers/bus/vmbus/linux/vmbus_bus.c
+++ b/drivers/bus/vmbus/linux/vmbus_bus.c
@@ -276,6 +276,8 @@ vmbus_scan_one(const char *name)
                dev->device.numa_node = SOCKET_ID_ANY;
        }
 
+       dev->device.devargs = vmbus_devargs_lookup(dev);
+
        /* device is valid, add in list (sorted) */
        VMBUS_LOG(DEBUG, "Adding vmbus device %s", name);
 

diff --git a/drivers/bus/vmbus/private.h b/drivers/bus/vmbus/private.h
index 9964fc4..f2022a6 100644 (file)
--- a/drivers/bus/vmbus/private.h
+++ b/drivers/bus/vmbus/private.h
@@ -66,6 +66,9 @@ struct vmbus_channel {
 
 #define VMBUS_MAX_CHANNELS     64
 
+struct rte_devargs *
+vmbus_devargs_lookup(struct rte_vmbus_device *dev);
+
 int vmbus_chan_create(const struct rte_vmbus_device *device,
                      uint16_t relid, uint16_t subid, uint8_t monitor_id,
                      struct vmbus_channel **new_chan);

diff --git a/drivers/bus/vmbus/vmbus_common.c b/drivers/bus/vmbus/vmbus_common.c
index c7165ad..e3ceb69 100644 (file)
--- a/drivers/bus/vmbus/vmbus_common.c
+++ b/drivers/bus/vmbus/vmbus_common.c
@@ -85,7 +85,6 @@ vmbus_match(const struct rte_vmbus_driver *dr,
 
        return false;
 }
-
 /*
  * If device ID match, call the devinit() function of the driver.
  */
@@ -204,6 +203,27 @@ vmbus_parse(const char *name, void *addr)
        return ret;
 }
 
+/*
+ * scan for matching device args on command line
+ * example:
+ *     -w 'vmbus:635a7ae3-091e-4410-ad59-667c4f8c04c3,latency=20'
+ */
+struct rte_devargs *
+vmbus_devargs_lookup(struct rte_vmbus_device *dev)
+{
+       struct rte_devargs *devargs;
+       rte_uuid_t addr;
+
+       RTE_EAL_DEVARGS_FOREACH("vmbus", devargs) {
+               vmbus_parse(devargs->name, &addr);
+
+               if (rte_uuid_compare(dev->device_id, addr) == 0)
+                       return devargs;
+       }
+       return NULL;
+
+}
+
 /* register vmbus driver */
 void
 rte_vmbus_register(struct rte_vmbus_driver *driver)