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From: Andy Pei <andy.pei@intel.com>
To: dev@dpdk.org
Cc: chenbo.xia@intel.com, maxime.coquelin@redhat.com, gang.cao@intel.com,
changpeng.liu@intel.com
Subject: [PATCH v6 11/16] vdpa/ifc: read virtio max queues from hardware
Date: Thu, 21 Apr 2022 16:33:49 +0800
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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 --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 045623b..e8e7d61 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -1525,6 +1525,10 @@ 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