This patch will register an auxiliary devivce for the pcie_em driver,
allowing it to attach and provide access to PCIe enclosure management
(LEDs), if present.
Signed-off-by: Stuart Hayes <stuart.w.hayes@xxxxxxxxx>
---
drivers/nvme/host/pci.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index ca2ee806d74b..22ff10798333 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -27,6 +27,8 @@
#include <linux/io-64-nonatomic-hi-lo.h>
#include <linux/sed-opal.h>
#include <linux/pci-p2pdma.h>
+#include <linux/auxiliary_bus.h>
+#include <linux/pcie_em.h>
#include "trace.h"
#include "nvme.h"
@@ -159,6 +161,9 @@ struct nvme_dev {
unsigned int nr_poll_queues;
bool attrs_added;
+
+ /* auxiliary_device for pcie_em driver (LEDs) */
+ struct auxiliary_device *pcie_em_auxdev;
};
static int io_queue_depth_set(const char *val, const struct kernel_param *kp)
@@ -2838,6 +2843,11 @@ static void nvme_reset_work(struct work_struct *work)
nvme_unfreeze(&dev->ctrl);
}
+ /*
+ * register auxiliary device if this supports PCIe enclosure management
+ */
+ dev->pcie_em_auxdev = register_pcie_em_auxdev(dev->dev, dev->ctrl.instance);
+
/*
* If only admin queue live, keep it to do further investigation or
* recovery.
@@ -3135,6 +3145,7 @@ static void nvme_remove(struct pci_dev *pdev)
nvme_free_queues(dev, 0);
nvme_release_prp_pools(dev);
nvme_dev_unmap(dev);
+ unregister_pcie_em_auxdev(dev->pcie_em_auxdev);
nvme_uninit_ctrl(&dev->ctrl);
}
--
2.31.1
