[PATCH v4 11/16] vdpa/ifc: read virtio max_queues from hardware

[Andy Pei]

original code max_queues is set to IFCVF_MAX_QUEUES.
New code max_queues is the min of IFCVF_MAX_QUEUES and hardware num_queues.

Signed-off-by: Andy Pei <andy.pei at intel.com>
---
 drivers/vdpa/ifc/ifcvf_vdpa.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 9bc2f47..20a0b01 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -1526,6 +1526,10 @@ struct rte_vdpa_dev_info dev_info[] = {
 			internal->hw.blk_cfg->geometry.sectors);
 		DRV_LOG(INFO, "num_queues: 0x%08x",
 			internal->hw.blk_cfg->num_queues);
+
+		/* reset max_queue here, to minimum modification */
+		internal->max_queues = RTE_MIN(IFCVF_MAX_QUEUES,
+			internal->hw.blk_cfg->num_queues);
 	}
 
 	list->internal = internal;
-- 
1.8.3.1