Not enabling interrupt in VRB1 PMD variant to avoid
potential corner case.
Fixes: 3cabc8eaf524 ("baseband/acc200: support interrupt")
Cc: sta...@dpdk.org
Signed-off-by: Nicolas Chautru <nicolas.chau...@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
drivers/baseband/acc/rte_vrb_pmd.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/baseband/acc/rte_vrb_pmd.c
b/drivers/baseband/acc/rte_vrb_pmd.c
index 3afaea71a3..fc68f47ca6 100644
--- a/drivers/baseband/acc/rte_vrb_pmd.c
+++ b/drivers/baseband/acc/rte_vrb_pmd.c
@@ -586,6 +586,14 @@ vrb_intr_enable(struct rte_bbdev *dev)
{
int ret;
struct acc_device *d = dev->data->dev_private;
+
+ if (d->device_variant == VRB1_VARIANT) {
+ /* On VRB1: cannot enable MSI/IR to avoid potential
back-pressure corner case. */
+ rte_bbdev_log(ERR, "VRB1 (%s) doesn't support any MSI/MSI-X
interrupt\n",
+ dev->data->name);
+ return -ENOTSUP;
+ }
+
/*
* MSI/MSI-X are supported.
* Option controlled by vfio-intr through EAL parameter.
--
2.34.1
