On Fri, Feb 09, 2018 at 07:45:23PM +0800, Yixian Liu wrote:
> This patch updates to support rq record doorbell in the
> user space driver.
>
> Signed-off-by: Yixian Liu <liuyixian@xxxxxxxxxx>
> Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx>
> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@xxxxxxxxxx>
> Signed-off-by: Shaobo Xu <xushaobo2@xxxxxxxxxx>
> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> ---
> providers/hns/CMakeLists.txt | 1 +
> providers/hns/hns_roce_u.h | 26 ++++++
> providers/hns/hns_roce_u_abi.h | 4 +
> providers/hns/hns_roce_u_db.c | 196 +++++++++++++++++++++++++++++++++++++++
> providers/hns/hns_roce_u_db.h | 5 +
> providers/hns/hns_roce_u_hw_v2.c | 11 ++-
> providers/hns/hns_roce_u_hw_v2.h | 4 +
> providers/hns/hns_roce_u_verbs.c | 22 ++++-
> 8 files changed, 265 insertions(+), 4 deletions(-)
> create mode 100644 providers/hns/hns_roce_u_db.c
>
> diff --git a/providers/hns/CMakeLists.txt b/providers/hns/CMakeLists.txt
> index f136151..697dbd7 100644
> --- a/providers/hns/CMakeLists.txt
> +++ b/providers/hns/CMakeLists.txt
> @@ -1,6 +1,7 @@
> rdma_provider(hns
> hns_roce_u.c
> hns_roce_u_buf.c
> + hns_roce_u_db.c
> hns_roce_u_hw_v1.c
> hns_roce_u_hw_v2.c
> hns_roce_u_verbs.c
> diff --git a/providers/hns/hns_roce_u.h b/providers/hns/hns_roce_u.h
> index 0291246..95440e9 100644
> --- a/providers/hns/hns_roce_u.h
> +++ b/providers/hns/hns_roce_u.h
> @@ -93,6 +93,26 @@ struct hns_roce_buf {
> unsigned int length;
> };
>
> +#define BIT_CNT_PER_BYTE 8
> +
> +/* the sw db length, on behalf of the qp/cq/srq length from left to right; */
> +static const unsigned int db_size[] = {4, 4};
> +
> +/* the sw doorbell type; */
> +enum hns_roce_db_type {
> + HNS_ROCE_QP_TYPE_DB,
> + HNS_ROCE_CQ_TYPE_DB,
> + HNS_ROCE_DB_TYPE_NUM
> +};
> +
> +struct hns_roce_db_page {
> + struct hns_roce_db_page *prev, *next;
> + struct hns_roce_buf buf;
> + unsigned int num_db;
> + unsigned int use_cnt;
> + unsigned long *bitmap;
> +};
> +
> struct hns_roce_context {
> struct verbs_context ibv_ctx;
> void *uar;
> @@ -110,6 +130,10 @@ struct hns_roce_context {
> int num_qps;
> int qp_table_shift;
> int qp_table_mask;
> +
> + struct hns_roce_db_page *db_list[HNS_ROCE_DB_TYPE_NUM];
> + pthread_mutex_t db_list_mutex;
> +
> unsigned int max_qp_wr;
> unsigned int max_sge;
> int max_cqe;
> @@ -188,12 +212,14 @@ struct hns_roce_qp {
> unsigned int sq_signal_bits;
> struct hns_roce_wq sq;
> struct hns_roce_wq rq;
> + unsigned int *rdb;
> struct hns_roce_sge_ex sge;
> unsigned int next_sge;
> int port_num;
> int sl;
>
> struct hns_roce_rinl_buf rq_rinl_buf;
> + unsigned int flags;
> };
>
> struct hns_roce_u_hw {
> diff --git a/providers/hns/hns_roce_u_abi.h b/providers/hns/hns_roce_u_abi.h
> index 251a5c9..d67e4fc 100644
> --- a/providers/hns/hns_roce_u_abi.h
> +++ b/providers/hns/hns_roce_u_abi.h
> @@ -68,4 +68,8 @@ struct hns_roce_create_qp {
> __u8 reserved[5];
> };
>
> +struct hns_roce_create_qp_resp {
> + struct ib_uverbs_create_qp_resp base;
> + __u32 cap_flags;
> +};
> #endif /* _HNS_ROCE_U_ABI_H */
> diff --git a/providers/hns/hns_roce_u_db.c b/providers/hns/hns_roce_u_db.c
> new file mode 100644
> index 0000000..770f1ec
> --- /dev/null
> +++ b/providers/hns/hns_roce_u_db.c
> @@ -0,0 +1,196 @@
> +/*
> + * Copyright (c) 2017 Hisilicon Limited.
> + *
> + * 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.
> + */
> +
> +#define _GNU_SOURCE
I see that it exists in mlx4 and mlx5 too, but why do you need this define?
Thanks
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