diff mbox series

[v2,10/15] vdpa/ifc: read virtio max_queues from hardware

Message ID 1643103437-118618-11-git-send-email-andy.pei@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers show
Series add virtio_blk device support to vdpa/ifc | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Andy Pei Jan. 25, 2022, 9:37 a.m. UTC 
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@intel.com>
---
 drivers/vdpa/ifc/ifcvf_vdpa.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index ff91e80..d30c3fd 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -1530,6 +1530,10 @@  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;