mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
eb7f84e379
User space should receive the maximum edpm size from kernel driver,
similar to other edpm/ldpm related limits. Add an additional parameter to
the alloc_ucontext_resp structure for the edpm maximum size.
In addition, pass an indication from user-space to kernel
(and not just kernel to user) that the DPM sizes are supported.
This is for supporting backward-forward compatibility between driver and
lib for everything related to DPM transaction and limit sizes.
This should have been part of commit mentioned in Fixes tag.
Link: https://lore.kernel.org/r/20200707063100.3811-3-michal.kalderon@marvell.com
Fixes: 93a3d05f9d ("RDMA/qedr: Add kernel capability flags for dpm enabled mode")
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
|
|
/* QLogic qedr NIC Driver
|
|
* Copyright (c) 2015-2016 QLogic Corporation
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and /or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
#ifndef __QEDR_USER_H__
|
|
#define __QEDR_USER_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define QEDR_ABI_VERSION (8)
|
|
|
|
/* user kernel communication data structures. */
|
|
enum qedr_alloc_ucontext_flags {
|
|
QEDR_ALLOC_UCTX_EDPM_MODE = 1 << 0,
|
|
QEDR_ALLOC_UCTX_DB_REC = 1 << 1,
|
|
QEDR_SUPPORT_DPM_SIZES = 1 << 2,
|
|
};
|
|
|
|
struct qedr_alloc_ucontext_req {
|
|
__u32 context_flags;
|
|
__u32 reserved;
|
|
};
|
|
|
|
#define QEDR_LDPM_MAX_SIZE (8192)
|
|
#define QEDR_EDPM_TRANS_SIZE (64)
|
|
#define QEDR_EDPM_MAX_SIZE (ROCE_REQ_MAX_INLINE_DATA_SIZE)
|
|
|
|
enum qedr_rdma_dpm_type {
|
|
QEDR_DPM_TYPE_NONE = 0,
|
|
QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0,
|
|
QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1,
|
|
QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2,
|
|
QEDR_DPM_TYPE_ROCE_EDPM_MODE = 1 << 3,
|
|
QEDR_DPM_SIZES_SET = 1 << 4,
|
|
};
|
|
|
|
struct qedr_alloc_ucontext_resp {
|
|
__aligned_u64 db_pa;
|
|
__u32 db_size;
|
|
|
|
__u32 max_send_wr;
|
|
__u32 max_recv_wr;
|
|
__u32 max_srq_wr;
|
|
__u32 sges_per_send_wr;
|
|
__u32 sges_per_recv_wr;
|
|
__u32 sges_per_srq_wr;
|
|
__u32 max_cqes;
|
|
__u8 dpm_flags;
|
|
__u8 wids_enabled;
|
|
__u16 wid_count;
|
|
__u16 ldpm_limit_size;
|
|
__u8 edpm_trans_size;
|
|
__u8 reserved;
|
|
__u16 edpm_limit_size;
|
|
__u8 padding[6];
|
|
};
|
|
|
|
struct qedr_alloc_pd_ureq {
|
|
__aligned_u64 rsvd1;
|
|
};
|
|
|
|
struct qedr_alloc_pd_uresp {
|
|
__u32 pd_id;
|
|
__u32 reserved;
|
|
};
|
|
|
|
struct qedr_create_cq_ureq {
|
|
__aligned_u64 addr;
|
|
__aligned_u64 len;
|
|
};
|
|
|
|
struct qedr_create_cq_uresp {
|
|
__u32 db_offset;
|
|
__u16 icid;
|
|
__u16 reserved;
|
|
__aligned_u64 db_rec_addr;
|
|
};
|
|
|
|
struct qedr_create_qp_ureq {
|
|
__u32 qp_handle_hi;
|
|
__u32 qp_handle_lo;
|
|
|
|
/* SQ */
|
|
/* user space virtual address of SQ buffer */
|
|
__aligned_u64 sq_addr;
|
|
|
|
/* length of SQ buffer */
|
|
__aligned_u64 sq_len;
|
|
|
|
/* RQ */
|
|
/* user space virtual address of RQ buffer */
|
|
__aligned_u64 rq_addr;
|
|
|
|
/* length of RQ buffer */
|
|
__aligned_u64 rq_len;
|
|
};
|
|
|
|
struct qedr_create_qp_uresp {
|
|
__u32 qp_id;
|
|
__u32 atomic_supported;
|
|
|
|
/* SQ */
|
|
__u32 sq_db_offset;
|
|
__u16 sq_icid;
|
|
|
|
/* RQ */
|
|
__u32 rq_db_offset;
|
|
__u16 rq_icid;
|
|
|
|
__u32 rq_db2_offset;
|
|
__u32 reserved;
|
|
|
|
/* address of SQ doorbell recovery user entry */
|
|
__aligned_u64 sq_db_rec_addr;
|
|
|
|
/* address of RQ doorbell recovery user entry */
|
|
__aligned_u64 rq_db_rec_addr;
|
|
|
|
};
|
|
|
|
struct qedr_create_srq_ureq {
|
|
/* user space virtual address of producer pair */
|
|
__aligned_u64 prod_pair_addr;
|
|
|
|
/* user space virtual address of SRQ buffer */
|
|
__aligned_u64 srq_addr;
|
|
|
|
/* length of SRQ buffer */
|
|
__aligned_u64 srq_len;
|
|
};
|
|
|
|
struct qedr_create_srq_uresp {
|
|
__u16 srq_id;
|
|
__u16 reserved0;
|
|
__u32 reserved1;
|
|
};
|
|
|
|
/* doorbell recovery entry allocated and populated by userspace doorbelling
|
|
* entities and mapped to kernel. Kernel uses this to register doorbell
|
|
* information with doorbell drop recovery mechanism.
|
|
*/
|
|
struct qedr_user_db_rec {
|
|
__aligned_u64 db_data; /* doorbell data */
|
|
};
|
|
|
|
#endif /* __QEDR_USER_H__ */
|