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From: Vladimir Ratnikov <vratnikov@netgate.com>
To: longli@microsoft.com
Cc: dev@dpdk.org,
Vladimir Ratnikov <vratnikov@netgate.com>
Subject: [PATCH v2] bus/vmbus: add device_order field to rte_vmbus_dev
Date: Mon, 24 Jun 2024 11:04:15 +0000
Message-Id: <20240624110415.3230-1-vratnikov@netgate.com>
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Field can be used to have static interface naming
in DPDK based applications instead of uuid.
RTE_FOREACH_DEV won't return the correct order of
such devices due to vmbus_ignore_device in case of
blocklisting/allowlisting. So device_order field
will be helpful in that case.
Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com>
---
drivers/bus/vmbus/bus_vmbus_driver.h | 1 +
drivers/bus/vmbus/vmbus_common.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/vmbus/bus_vmbus_driver.h b/drivers/bus/vmbus/bus_vmbus_driver.h
index e2475a642d..6b010cbe41 100644
--- a/drivers/bus/vmbus/bus_vmbus_driver.h
+++ b/drivers/bus/vmbus/bus_vmbus_driver.h
@@ -37,6 +37,7 @@ struct rte_vmbus_device {
rte_uuid_t device_id; /**< VMBUS device id */
rte_uuid_t class_id; /**< VMBUS device type */
uint32_t relid; /**< id for primary */
+ uint16_t device_order; /**< Device order after probing */
uint8_t monitor_id; /**< monitor page */
int uio_num; /**< UIO device number */
uint32_t *int_page; /**< VMBUS interrupt page */
diff --git a/drivers/bus/vmbus/vmbus_common.c b/drivers/bus/vmbus/vmbus_common.c
index b9139c6e6c..1a64ab2712 100644
--- a/drivers/bus/vmbus/vmbus_common.c
+++ b/drivers/bus/vmbus/vmbus_common.c
@@ -199,7 +199,7 @@ rte_vmbus_probe(void)
char ubuf[RTE_UUID_STRLEN];
FOREACH_DEVICE_ON_VMBUS(dev) {
- probed++;
+ dev->device_order = probed++;
rte_uuid_unparse(dev->device_id, ubuf, sizeof(ubuf));
--
2.34.1