diff options
Diffstat (limited to 'drivers/infiniband/hw/mana/mana_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mana/mana_ib.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h new file mode 100644 index 000000000000..502cc8672eef --- /dev/null +++ b/drivers/infiniband/hw/mana/mana_ib.h @@ -0,0 +1,162 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Microsoft Corporation. All rights reserved. + */ + +#ifndef _MANA_IB_H_ +#define _MANA_IB_H_ + +#include <rdma/ib_verbs.h> +#include <rdma/ib_mad.h> +#include <rdma/ib_umem.h> +#include <rdma/mana-abi.h> +#include <rdma/uverbs_ioctl.h> + +#include <net/mana/mana.h> + +#define PAGE_SZ_BM \ + (SZ_4K | SZ_8K | SZ_16K | SZ_32K | SZ_64K | SZ_128K | SZ_256K | \ + SZ_512K | SZ_1M | SZ_2M) + +/* MANA doesn't have any limit for MR size */ +#define MANA_IB_MAX_MR_SIZE U64_MAX + +/* + * The hardware limit of number of MRs is greater than maximum number of MRs + * that can possibly represent in 24 bits + */ +#define MANA_IB_MAX_MR 0xFFFFFFu + +struct mana_ib_dev { + struct ib_device ib_dev; + struct gdma_dev *gdma_dev; +}; + +struct mana_ib_wq { + struct ib_wq ibwq; + struct ib_umem *umem; + int wqe; + u32 wq_buf_size; + u64 gdma_region; + u64 id; + mana_handle_t rx_object; +}; + +struct mana_ib_pd { + struct ib_pd ibpd; + u32 pdn; + mana_handle_t pd_handle; + + /* Mutex for sharing access to vport_use_count */ + struct mutex vport_mutex; + int vport_use_count; + + bool tx_shortform_allowed; + u32 tx_vp_offset; +}; + +struct mana_ib_mr { + struct ib_mr ibmr; + struct ib_umem *umem; + mana_handle_t mr_handle; +}; + +struct mana_ib_cq { + struct ib_cq ibcq; + struct ib_umem *umem; + int cqe; + u64 gdma_region; + u64 id; +}; + +struct mana_ib_qp { + struct ib_qp ibqp; + + /* Work queue info */ + struct ib_umem *sq_umem; + int sqe; + u64 sq_gdma_region; + u64 sq_id; + mana_handle_t tx_object; + + /* The port on the IB device, starting with 1 */ + u32 port; +}; + +struct mana_ib_ucontext { + struct ib_ucontext ibucontext; + u32 doorbell; +}; + +struct mana_ib_rwq_ind_table { + struct ib_rwq_ind_table ib_ind_table; +}; + +int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem, + mana_handle_t *gdma_region); + +int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *dev, + mana_handle_t gdma_region); + +struct ib_wq *mana_ib_create_wq(struct ib_pd *pd, + struct ib_wq_init_attr *init_attr, + struct ib_udata *udata); + +int mana_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, + u32 wq_attr_mask, struct ib_udata *udata); + +int mana_ib_destroy_wq(struct ib_wq *ibwq, struct ib_udata *udata); + +int mana_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_table, + struct ib_rwq_ind_table_init_attr *init_attr, + struct ib_udata *udata); + +int mana_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl); + +struct ib_mr *mana_ib_get_dma_mr(struct ib_pd *ibpd, int access_flags); + +struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 iova, int access_flags, + struct ib_udata *udata); + +int mana_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata); + +int mana_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *qp_init_attr, + struct ib_udata *udata); + +int mana_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata); + +int mana_ib_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata); + +int mana_ib_cfg_vport(struct mana_ib_dev *dev, u32 port_id, + struct mana_ib_pd *pd, u32 doorbell_id); +void mana_ib_uncfg_vport(struct mana_ib_dev *dev, struct mana_ib_pd *pd, + u32 port); + +int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, + struct ib_udata *udata); + +int mana_ib_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata); + +int mana_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata); +int mana_ib_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata); + +int mana_ib_alloc_ucontext(struct ib_ucontext *ibcontext, + struct ib_udata *udata); +void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext); + +int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma); + +int mana_ib_get_port_immutable(struct ib_device *ibdev, u32 port_num, + struct ib_port_immutable *immutable); +int mana_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props, + struct ib_udata *uhw); +int mana_ib_query_port(struct ib_device *ibdev, u32 port, + struct ib_port_attr *props); +int mana_ib_query_gid(struct ib_device *ibdev, u32 port, int index, + union ib_gid *gid); + +void mana_ib_disassociate_ucontext(struct ib_ucontext *ibcontext); + +#endif |