1 files changed, 117 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/mana/device.c
new file mode 100644
index 000000000000..d4541b8707e4
--- /dev/null
+++ b/drivers/infiniband/hw/mana/device.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022, Microsoft Corporation. All rights reserved.
+ */
+
+#include "mana_ib.h"
+#include <net/mana/mana_auxiliary.h>
+
+MODULE_DESCRIPTION("Microsoft Azure Network Adapter IB driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(NET_MANA);
+
+static const struct ib_device_ops mana_ib_dev_ops = {
+	.owner = THIS_MODULE,
+	.driver_id = RDMA_DRIVER_MANA,
+	.uverbs_abi_ver = MANA_IB_UVERBS_ABI_VERSION,
+
+	.alloc_pd = mana_ib_alloc_pd,
+	.alloc_ucontext = mana_ib_alloc_ucontext,
+	.create_cq = mana_ib_create_cq,
+	.create_qp = mana_ib_create_qp,
+	.create_rwq_ind_table = mana_ib_create_rwq_ind_table,
+	.create_wq = mana_ib_create_wq,
+	.dealloc_pd = mana_ib_dealloc_pd,
+	.dealloc_ucontext = mana_ib_dealloc_ucontext,
+	.dereg_mr = mana_ib_dereg_mr,
+	.destroy_cq = mana_ib_destroy_cq,
+	.destroy_qp = mana_ib_destroy_qp,
+	.destroy_rwq_ind_table = mana_ib_destroy_rwq_ind_table,
+	.destroy_wq = mana_ib_destroy_wq,
+	.disassociate_ucontext = mana_ib_disassociate_ucontext,
+	.get_port_immutable = mana_ib_get_port_immutable,
+	.mmap = mana_ib_mmap,
+	.modify_qp = mana_ib_modify_qp,
+	.modify_wq = mana_ib_modify_wq,
+	.query_device = mana_ib_query_device,
+	.query_gid = mana_ib_query_gid,
+	.query_port = mana_ib_query_port,
+	.reg_user_mr = mana_ib_reg_user_mr,
+
+	INIT_RDMA_OBJ_SIZE(ib_cq, mana_ib_cq, ibcq),
+	INIT_RDMA_OBJ_SIZE(ib_pd, mana_ib_pd, ibpd),
+	INIT_RDMA_OBJ_SIZE(ib_qp, mana_ib_qp, ibqp),
+	INIT_RDMA_OBJ_SIZE(ib_ucontext, mana_ib_ucontext, ibucontext),
+	INIT_RDMA_OBJ_SIZE(ib_rwq_ind_table, mana_ib_rwq_ind_table,
+			   ib_ind_table),
+};
+
+static int mana_ib_probe(struct auxiliary_device *adev,
+			 const struct auxiliary_device_id *id)
+{
+	struct mana_adev *madev = container_of(adev, struct mana_adev, adev);
+	struct gdma_dev *mdev = madev->mdev;
+	struct mana_context *mc;
+	struct mana_ib_dev *dev;
+	int ret;
+
+	mc = mdev->driver_data;
+
+	dev = ib_alloc_device(mana_ib_dev, ib_dev);
+	if (!dev)
+		return -ENOMEM;
+
+	ib_set_device_ops(&dev->ib_dev, &mana_ib_dev_ops);
+
+	dev->ib_dev.phys_port_cnt = mc->num_ports;
+
+	ibdev_dbg(&dev->ib_dev, "mdev=%p id=%d num_ports=%d\n", mdev,
+		  mdev->dev_id.as_uint32, dev->ib_dev.phys_port_cnt);
+
+	dev->gdma_dev = mdev;
+	dev->ib_dev.node_type = RDMA_NODE_IB_CA;
+
+	/*
+	 * num_comp_vectors needs to set to the max MSIX index
+	 * when interrupts and event queues are implemented
+	 */
+	dev->ib_dev.num_comp_vectors = 1;
+	dev->ib_dev.dev.parent = mdev->gdma_context->dev;
+
+	ret = ib_register_device(&dev->ib_dev, "mana_%d",
+				 mdev->gdma_context->dev);
+	if (ret) {
+		ib_dealloc_device(&dev->ib_dev);
+		return ret;
+	}
+
+	dev_set_drvdata(&adev->dev, dev);
+
+	return 0;
+}
+
+static void mana_ib_remove(struct auxiliary_device *adev)
+{
+	struct mana_ib_dev *dev = dev_get_drvdata(&adev->dev);
+
+	ib_unregister_device(&dev->ib_dev);
+	ib_dealloc_device(&dev->ib_dev);
+}
+
+static const struct auxiliary_device_id mana_id_table[] = {
+	{
+		.name = "mana.rdma",
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(auxiliary, mana_id_table);
+
+static struct auxiliary_driver mana_driver = {
+	.name = "rdma",
+	.probe = mana_ib_probe,
+	.remove = mana_ib_remove,
+	.id_table = mana_id_table,
+};
+
+module_auxiliary_driver(mana_driver);