diff options
Diffstat (limited to 'drivers/infiniband/hw/mana/device.c')
| -rw-r--r-- | drivers/infiniband/hw/mana/device.c | 117 |
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); |