On Fri, Oct 06, 2017 at 08:28:45AM -0400, Bernard Metzler wrote:
> Signed-off-by: Bernard Metzler <bmt@xxxxxxxxxxxxxx>
> ---
> drivers/infiniband/sw/siw/siw_ae.c | 113 ++
> drivers/infiniband/sw/siw/siw_verbs.c | 1929 +++++++++++++++++++++++++++++++++
> drivers/infiniband/sw/siw/siw_verbs.h | 119 ++
> include/uapi/rdma/siw_user.h | 220 ++++
> 4 files changed, 2381 insertions(+)
> create mode 100644 drivers/infiniband/sw/siw/siw_ae.c
> create mode 100644 drivers/infiniband/sw/siw/siw_verbs.c
> create mode 100644 drivers/infiniband/sw/siw/siw_verbs.h
> create mode 100644 include/uapi/rdma/siw_user.h
>
<..>
> +#endif
> diff --git a/include/uapi/rdma/siw_user.h b/include/uapi/rdma/siw_user.h
> new file mode 100644
> index 000000000000..9bf1448d54e7
> --- /dev/null
> +++ b/include/uapi/rdma/siw_user.h
> @@ -0,0 +1,220 @@
> +/*
> + * Software iWARP device driver for Linux
> + *
> + * Authors: Bernard Metzler <bmt@xxxxxxxxxxxxxx>
> + *
> + * Copyright (c) 2008-2017, IBM 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
> + * 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.
> + *
> + * - Neither the name of IBM nor the names of its contributors may be
> + * used to endorse or promote products derived from this software without
> + * specific prior written permission.
> + *
> + * 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 _SIW_USER_H
> +#define _SIW_USER_H
> +
> +#ifdef __KERNEL__
> +#include <linux/types.h>
> +#else
> +#include <stdint.h>
> +#endif
> +
> +/*Common string that is matched to accept the device by the user library*/
> +#define SIW_NODE_DESC_COMMON "Software iWARP stack"
> +
> +#define SIW_IBDEV_PREFIX "siw_"
NACK to whole this file, no "#ifdef __KERNEL__" magic and wrong data types.
> +
> +#define VERSION_ID_SOFTIWARP 2
> +
> +#define SIW_MAX_SGE 6
> +#define SIW_MAX_UOBJ_KEY 0xffffff
> +#define SIW_INVAL_UOBJ_KEY (SIW_MAX_UOBJ_KEY + 1)
> +
> +struct siw_uresp_create_cq {
> + uint32_t cq_id;
> + uint32_t num_cqe;
> + uint32_t cq_key;
> +};
> +
> +struct siw_uresp_create_qp {
> + uint32_t qp_id;
> + uint32_t num_sqe;
> + uint32_t num_rqe;
> + uint32_t sq_key;
> + uint32_t rq_key;
> +};
> +
> +struct siw_ureq_reg_mr {
> + uint8_t stag_key;
> + uint8_t reserved[3];
> +};
> +
> +struct siw_uresp_reg_mr {
> + uint32_t stag;
> +};
> +
> +struct siw_uresp_create_srq {
> + uint32_t num_rqe;
> + uint32_t srq_key;
> +};
> +
> +struct siw_uresp_alloc_ctx {
> + uint32_t dev_id;
> +};
> +
> +enum siw_opcode {
> + SIW_OP_WRITE = 0,
> + SIW_OP_READ = 1,
> + SIW_OP_READ_LOCAL_INV = 2,
> + SIW_OP_SEND = 3,
> + SIW_OP_SEND_WITH_IMM = 4,
> + SIW_OP_SEND_REMOTE_INV = 5,
> +
> + /* Unsupported */
> + SIW_OP_FETCH_AND_ADD = 6,
> + SIW_OP_COMP_AND_SWAP = 7,
> +
> + SIW_OP_RECEIVE = 8,
> + /* provider internal SQE */
> + SIW_OP_READ_RESPONSE = 9,
> + /*
> + * below opcodes valid for
> + * in-kernel clients only
> + */
> + SIW_OP_INVAL_STAG = 10,
> + SIW_OP_REG_MR = 11,
> + SIW_NUM_OPCODES = 12
> +};
> +
> +/* Keep it same as ibv_sge to allow for memcpy */
> +struct siw_sge {
> + uint64_t laddr;
> + uint32_t length;
> + uint32_t lkey;
> +};
> +
> +/*
> + * Inline data are kept within the work request itself occupying
> + * the space of sge[1] .. sge[n]. Therefore, inline data cannot be
> + * supported if SIW_MAX_SGE is below 2 elements.
> + */
> +#define SIW_MAX_INLINE (sizeof(struct siw_sge) * (SIW_MAX_SGE - 1))
> +
> +#if SIW_MAX_SGE < 2
> +#error "SIW_MAX_SGE must be at least 2"
> +#endif
> +
> +enum siw_wqe_flags {
> + SIW_WQE_VALID = 1,
> + SIW_WQE_INLINE = (1 << 1),
> + SIW_WQE_SIGNALLED = (1 << 2),
> + SIW_WQE_SOLICITED = (1 << 3),
> + SIW_WQE_READ_FENCE = (1 << 4),
> + SIW_WQE_COMPLETED = (1 << 5)
> +};
> +
> +/* Send Queue Element */
> +struct siw_sqe {
> + uint64_t id;
> + uint16_t flags;
> + uint8_t num_sge;
> + /* Contains enum siw_opcode values */
> + uint8_t opcode;
> + uint32_t rkey;
> + union {
> + uint64_t raddr;
> + uint64_t ofa_mr;
> + };
> + union {
> + struct siw_sge sge[SIW_MAX_SGE];
> + uint32_t access;
> + };
> +};
> +
> +/* Receive Queue Element */
> +struct siw_rqe {
> + uint64_t id;
> + uint16_t flags;
> + uint8_t num_sge;
> + /*
> + * only used by kernel driver,
> + * ignored if set by user
> + */
> + uint8_t opcode;
> + uint32_t imm_data;
> + struct siw_sge sge[SIW_MAX_SGE];
> +};
> +
> +enum siw_notify_flags {
> + SIW_NOTIFY_NOT = (0),
> + SIW_NOTIFY_SOLICITED = (1 << 0),
> + SIW_NOTIFY_NEXT_COMPLETION = (1 << 1),
> + SIW_NOTIFY_MISSED_EVENTS = (1 << 2),
> + SIW_NOTIFY_ALL = SIW_NOTIFY_SOLICITED |
> + SIW_NOTIFY_NEXT_COMPLETION |
> + SIW_NOTIFY_MISSED_EVENTS
> +};
> +
> +enum siw_wc_status {
> + SIW_WC_SUCCESS = 0,
> + SIW_WC_LOC_LEN_ERR = 1,
> + SIW_WC_LOC_PROT_ERR = 2,
> + SIW_WC_LOC_QP_OP_ERR = 3,
> + SIW_WC_WR_FLUSH_ERR = 4,
> + SIW_WC_BAD_RESP_ERR = 5,
> + SIW_WC_LOC_ACCESS_ERR = 6,
> + SIW_WC_REM_ACCESS_ERR = 7,
> + SIW_WC_REM_INV_REQ_ERR = 8,
> + SIW_WC_GENERAL_ERR = 9,
> + SIW_NUM_WC_STATUS = 10
> +};
> +
> +struct siw_cqe {
> + uint64_t id;
> + uint8_t flags;
> + uint8_t opcode;
> + uint16_t status;
> + uint32_t bytes;
> + uint64_t imm_data;
> + /* QP number or QP pointer */
> + union {
> + void *qp;
> + uint64_t qp_id;
> + };
> +};
> +
> +/*
> + * Shared structure between user and kernel
> + * to control CQ arming.
> + */
> +struct siw_cq_ctrl {
> + enum siw_notify_flags notify;
> +};
> +
> +#endif
> --
> 2.13.6
>
> --
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