When host is shutting down, it invokes the shutdown hook of the
L2 driver where it would attempt to free the MSI-X vectors, but would fail
because some vectors are held by the RoCE driver.
Implement the new hook in the L2 -> RoCE interface which will be invoked so that
the RoCE driver can unregister the device and free up the MSI-X vectors it had
claimed so that L2 can proceed with it's shutdown without failure.
Signed-off-by: Somnath Kotur <somnath.kotur@xxxxxxxxxxxx>
---
drivers/infiniband/hw/bnxt_re/main.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 87f8a5d..aafc19a 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -78,6 +78,7 @@
/* Mutex to protect the list of bnxt_re devices added */
static DEFINE_MUTEX(bnxt_re_dev_lock);
static struct workqueue_struct *bnxt_re_wq;
+static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev, bool lock_wait);
/* for handling bnxt_en callbacks later */
static void bnxt_re_stop(void *p)
@@ -92,11 +93,22 @@ static void bnxt_re_sriov_config(void *p, int num_vfs)
{
}
+static void bnxt_re_shutdown(void *p)
+{
+ struct bnxt_re_dev *rdev = p;
+
+ if (!rdev)
+ return;
+
+ bnxt_re_ib_unreg(rdev, false);
+}
+
static struct bnxt_ulp_ops bnxt_re_ulp_ops = {
.ulp_async_notifier = NULL,
.ulp_stop = bnxt_re_stop,
.ulp_start = bnxt_re_start,
- .ulp_sriov_config = bnxt_re_sriov_config
+ .ulp_sriov_config = bnxt_re_sriov_config,
+ .ulp_shutdown = bnxt_re_shutdown
};
/* RoCE -> Net driver */
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
