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Date: Tue, 28 Jun 2016 14:56:51 +0800
From: oulijun <oulijun@...wei.com>
To: Leon Romanovsky <leon@...nel.org>
CC: <dledford@...hat.com>, <sean.hefty@...el.com>,
<hal.rosenstock@...il.com>, <davem@...emloft.net>,
<jeffrey.t.kirsher@...el.com>, <jiri@...lanox.com>,
<ogerlitz@...lanox.com>, <linux-rdma@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
<gongyangming@...wei.com>, <xiaokun@...wei.com>,
<tangchaofei@...wei.com>, <haifeng.wei@...wei.com>,
<yisen.zhuang@...wei.com>, <yankejian@...wei.com>,
<charles.chenxin@...wei.com>, <linuxarm@...wei.com>
Subject: Re: [PATCH v10 05/22] IB/hns: Add initial profile resource
Hi, leon
在 2016/6/24 23:10, Leon Romanovsky 写道:
> On Thu, Jun 16, 2016 at 10:35:13PM +0800, Lijun Ou wrote:
>> This patch added the operation for cmd, and added some functions
>> for initializing eq table and selecting cmd mode.
>>
>> Signed-off-by: Wei Hu <xavier.huwei@...wei.com>
>> Signed-off-by: Nenglong Zhao <zhaonenglong@...ilicon.com>
>> Signed-off-by: Lijun Ou <oulijun@...wei.com>
>> ---
>> PATCH v9:
>> This fixes the comments given by Leon Romanovsky over the PATCH v8:
>> Link: https://lkml.org/lkml/2016/6/9/65
>>
>> PATCH v8/v7/v6:
>> - No change over the PATCH v5
>>
>> PATCH v5:
>> - The initial patch which was redesigned based on the second patch
>> in PATCH v4
>> ---
>> ---
>> drivers/infiniband/hw/hns/hns_roce_common.h | 49 +++++++++++++++++++
>> drivers/infiniband/hw/hns/hns_roce_device.h | 55 ++++++++++++++++++++-
>> drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 75 +++++++++++++++++++++++++++++
>> drivers/infiniband/hw/hns/hns_roce_hw_v1.h | 36 ++++++++++++++
>> drivers/infiniband/hw/hns/hns_roce_main.c | 7 +++
>> 5 files changed, 221 insertions(+), 1 deletion(-)
>> create mode 100644 drivers/infiniband/hw/hns/hns_roce_common.h
>>
>> diff --git a/drivers/infiniband/hw/hns/hns_roce_common.h b/drivers/infiniband/hw/hns/hns_roce_common.h
>> new file mode 100644
>> index 0000000..4cc4761
>> --- /dev/null
>> +++ b/drivers/infiniband/hw/hns/hns_roce_common.h
>> @@ -0,0 +1,49 @@
>> +/*
>> + * Copyright (c) 2016 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.
>> + */
>> +
>> +#ifndef _HNS_ROCE_COMMON_H
>> +#define _HNS_ROCE_COMMON_H
>> +
>> +#define roce_read(dev, reg) readl((dev)->reg_base + (reg))
>> +
>> +/*************ROCEE_REG DEFINITION****************/
>> +#define ROCEE_VENDOR_ID_REG 0x0
>> +#define ROCEE_VENDOR_PART_ID_REG 0x4
>> +
>> +#define ROCEE_HW_VERSION_REG 0x8
>> +
>> +#define ROCEE_SYS_IMAGE_GUID_L_REG 0xC
>> +#define ROCEE_SYS_IMAGE_GUID_H_REG 0x10
>> +
>> +#define ROCEE_ACK_DELAY_REG 0x14
>> +
>> +#endif /* _HNS_ROCE_COMMON_H */
>> diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
>> index b857c76..e01ea34 100644
>> --- a/drivers/infiniband/hw/hns/hns_roce_device.h
>> +++ b/drivers/infiniband/hw/hns/hns_roce_device.h
>> @@ -45,6 +45,12 @@
>> #define DRV_NAME "hns_roce"
>>
>> #define HNS_ROCE_MAX_IRQ_NUM 34
>> +
>> +#define HNS_ROCE_COMP_VEC_NUM 32
>> +
>> +#define HNS_ROCE_AEQE_VEC_NUM 1
>> +#define HNS_ROCE_AEQE_OF_VEC_NUM 1
>> +
>> #define HNS_ROCE_MAX_PORTS 6
>>
>> struct hns_roce_ib_iboe {
>> @@ -53,11 +59,52 @@ struct hns_roce_ib_iboe {
>> };
>>
>> struct hns_roce_caps {
>> - u8 num_ports;
>> + u64 fw_ver;
>> + u8 num_ports;
>> + int gid_table_len[HNS_ROCE_MAX_PORTS];
>> + int pkey_table_len[HNS_ROCE_MAX_PORTS];
>> + int local_ca_ack_delay;
>> + int num_uars;
>> + u32 phy_num_uars;
>> + u32 max_sq_sg; /* 2 */
>> + u32 max_sq_inline; /* 32 */
>> + u32 max_rq_sg; /* 2 */
>> + int num_qps; /* 256k */
>> + u32 max_wqes; /* 16k */
>> + u32 max_sq_desc_sz; /* 64 */
>> + u32 max_rq_desc_sz; /* 64 */
>> + int max_qp_init_rdma;
>> + int max_qp_dest_rdma;
>> + int sqp_start;
>> + int num_cqs;
>> + int max_cqes;
>> + int reserved_cqs;
>> + int num_aeq_vectors; /* 1 */
>> + int num_comp_vectors; /* 32 ceq */
>> + int num_other_vectors;
>> + int num_mtpts;
>> + u32 num_mtt_segs;
>> + int reserved_mtts;
>> + int reserved_mrws;
>> + int reserved_uars;
>> + int num_pds;
>> + int reserved_pds;
>> + u32 mtt_entry_sz;
>> + u32 cq_entry_sz;
>> + u32 page_size_cap;
>> + u32 reserved_lkey;
>> + int mtpt_entry_sz;
>> + int qpc_entry_sz;
>> + int irrl_entry_sz;
>> + int cqc_entry_sz;
>> + int aeqe_depth;
>> + int ceqe_depth[HNS_ROCE_COMP_VEC_NUM];
>> + enum ib_mtu max_mtu;
>> };
>
> Can you please clean this struct from fields which you don't have?
> For example fw_ver.
>
Yes, I have checked it and discuss with others. Indeed, fw_ver is redundant
definitions. I will delete it in patch v11
>>
>> struct hns_roce_hw {
>> int (*reset)(struct hns_roce_dev *hr_dev, bool enable);
>> + void (*hw_profile)(struct hns_roce_dev *hr_dev);
>> };
>>
>> struct hns_roce_dev {
>> @@ -70,6 +117,12 @@ struct hns_roce_dev {
>> u8 __iomem *reg_base;
>> struct hns_roce_caps caps;
>>
>> + u64 fw_ver;
>
> Again.
>
>> + u64 sys_image_guid;
>> + u32 vendor_id;
>> + u32 vendor_part_id;
>> + u32 hw_rev;
>> +
>> int cmd_mod;
>> int loop_idc;
>> struct hns_roce_hw *hw;
>> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
>> index 198be3b..45b4662 100644
>> --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
>> +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
>> @@ -35,6 +35,7 @@
>> #include <linux/of_address.h>
>> #include <linux/of_platform.h>
>> #include <linux/platform_device.h>
>> +#include "hns_roce_common.h"
>> #include "hns_roce_device.h"
>> #include "hns_roce_hw_v1.h"
>>
>> @@ -67,6 +68,80 @@ int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool enable)
>> return ret;
>> }
>>
>> +void hns_roce_v1_profile(struct hns_roce_dev *hr_dev)
>> +{
>> + int i = 0;
>> + struct hns_roce_caps *caps = &hr_dev->caps;
>> +
>> + hr_dev->vendor_id = le32_to_cpu(roce_read(hr_dev, ROCEE_VENDOR_ID_REG));
>> + hr_dev->vendor_part_id = le32_to_cpu(roce_read(hr_dev,
>> + ROCEE_VENDOR_PART_ID_REG));
>> + hr_dev->hw_rev = le32_to_cpu(roce_read(hr_dev, ROCEE_HW_VERSION_REG));
>> + hr_dev->fw_ver = 0;
>> +
>> + hr_dev->sys_image_guid = le32_to_cpu(roce_read(hr_dev,
>> + ROCEE_SYS_IMAGE_GUID_L_REG)) |
>> + ((u64)le32_to_cpu(roce_read(hr_dev,
>> + ROCEE_SYS_IMAGE_GUID_H_REG)) << 32);
>> +
>> + caps->fw_ver = hr_dev->hw_rev;
>
> Which is 0.
Here, caps->fw_ver is 0, the value of hr_dev->hw_rev is obtained from the relatived
register
>
>> + caps->num_qps = HNS_ROCE_V1_MAX_QP_NUM;
>> + caps->max_wqes = HNS_ROCE_V1_MAX_WQE_NUM;
>> + caps->num_cqs = HNS_ROCE_V1_MAX_CQ_NUM;
>> + caps->max_cqes = HNS_ROCE_V1_MAX_CQE_NUM;
>> + caps->max_sq_sg = HNS_ROCE_V1_SG_NUM;
>> + caps->max_rq_sg = HNS_ROCE_V1_SG_NUM;
>> + caps->max_sq_inline = HNS_ROCE_V1_INLINE_SIZE;
>> + caps->num_uars = HNS_ROCE_V1_UAR_NUM;
>> + caps->phy_num_uars = HNS_ROCE_V1_PHY_UAR_NUM;
>> + caps->num_aeq_vectors = HNS_ROCE_AEQE_VEC_NUM;
>> + caps->num_comp_vectors = HNS_ROCE_COMP_VEC_NUM;
>> + caps->num_other_vectors = HNS_ROCE_AEQE_OF_VEC_NUM;
>> + caps->num_mtpts = HNS_ROCE_V1_MAX_MTPT_NUM;
>> + caps->num_mtt_segs = HNS_ROCE_V1_MAX_MTT_SEGS;
>> + caps->num_pds = HNS_ROCE_V1_MAX_PD_NUM;
>> + caps->max_qp_init_rdma = HNS_ROCE_V1_MAX_QP_INIT_RDMA;
>> + caps->max_qp_dest_rdma = HNS_ROCE_V1_MAX_QP_DEST_RDMA;
>> + caps->max_sq_desc_sz = HNS_ROCE_V1_MAX_SQ_DESC_SZ;
>> + caps->max_rq_desc_sz = HNS_ROCE_V1_MAX_RQ_DESC_SZ;
>> + caps->qpc_entry_sz = HNS_ROCE_V1_QPC_ENTRY_SIZE;
>> + caps->irrl_entry_sz = HNS_ROCE_V1_IRRL_ENTRY_SIZE;
>> + caps->cqc_entry_sz = HNS_ROCE_V1_CQC_ENTRY_SIZE;
>> + caps->mtpt_entry_sz = HNS_ROCE_V1_MTPT_ENTRY_SIZE;
>> + caps->mtt_entry_sz = HNS_ROCE_V1_MTT_ENTRY_SIZE;
>> + caps->cq_entry_sz = HNS_ROCE_V1_CQE_ENTRY_SIZE;
>> + caps->page_size_cap = HNS_ROCE_V1_PAGE_SIZE_SUPPORT;
>> + caps->sqp_start = 0;
>> + caps->reserved_lkey = 0;
>> + caps->reserved_pds = 0;
>> + caps->reserved_mrws = 1;
>> + caps->reserved_mtts = 0;
>> + caps->reserved_uars = 0;
>> + caps->reserved_cqs = 0;
>> +
>> + for (i = 0; i < caps->num_ports; i++)
>> + caps->pkey_table_len[i] = 1;
>> +
>> + for (i = 0; i < caps->num_ports; i++) {
>> + /* Six ports shared 16 GID in v1 engine */
>> + if (i >= (HNS_ROCE_V1_GID_NUM % caps->num_ports))
>> + caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
>> + caps->num_ports;
>> + else
>> + caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
>> + caps->num_ports + 1;
>> + }
>> +
>> + for (i = 0; i < caps->num_comp_vectors; i++)
>> + caps->ceqe_depth[i] = HNS_ROCE_V1_NUM_COMP_EQE;
>> +
>> + caps->aeqe_depth = HNS_ROCE_V1_NUM_ASYNC_EQE;
>> + caps->local_ca_ack_delay = le32_to_cpu(roce_read(hr_dev,
>> + ROCEE_ACK_DELAY_REG));
>> + caps->max_mtu = IB_MTU_2048;
>> +}
>> +
>> struct hns_roce_hw hns_roce_hw_v1 = {
>> .reset = hns_roce_v1_reset,
>> + .hw_profile = hns_roce_v1_profile,
>> };
>> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.h b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h
>> index a8c0c1d..31a9a6d 100644
>> --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.h
>> +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h
>> @@ -33,6 +33,42 @@
>> #ifndef _HNS_ROCE_HW_V1_H
>> #define _HNS_ROCE_HW_V1_H
>>
>> +#define HNS_ROCE_V1_MAX_PD_NUM 0x8000
>> +#define HNS_ROCE_V1_MAX_CQ_NUM 0x10000
>> +#define HNS_ROCE_V1_MAX_CQE_NUM 0x8000
>> +
>> +#define HNS_ROCE_V1_MAX_QP_NUM 0x40000
>> +#define HNS_ROCE_V1_MAX_WQE_NUM 0x4000
>> +
>> +#define HNS_ROCE_V1_MAX_MTPT_NUM 0x80000
>> +
>> +#define HNS_ROCE_V1_MAX_MTT_SEGS 0x100000
>> +
>> +#define HNS_ROCE_V1_MAX_QP_INIT_RDMA 128
>> +#define HNS_ROCE_V1_MAX_QP_DEST_RDMA 128
>> +
>> +#define HNS_ROCE_V1_MAX_SQ_DESC_SZ 64
>> +#define HNS_ROCE_V1_MAX_RQ_DESC_SZ 64
>> +#define HNS_ROCE_V1_SG_NUM 2
>> +#define HNS_ROCE_V1_INLINE_SIZE 32
>> +
>> +#define HNS_ROCE_V1_UAR_NUM 256
>> +#define HNS_ROCE_V1_PHY_UAR_NUM 8
>> +
>> +#define HNS_ROCE_V1_GID_NUM 16
>> +
>> +#define HNS_ROCE_V1_NUM_COMP_EQE 0x8000
>> +#define HNS_ROCE_V1_NUM_ASYNC_EQE 0x400
>> +
>> +#define HNS_ROCE_V1_QPC_ENTRY_SIZE 256
>> +#define HNS_ROCE_V1_IRRL_ENTRY_SIZE 8
>> +#define HNS_ROCE_V1_CQC_ENTRY_SIZE 64
>> +#define HNS_ROCE_V1_MTPT_ENTRY_SIZE 64
>> +#define HNS_ROCE_V1_MTT_ENTRY_SIZE 64
>> +
>> +#define HNS_ROCE_V1_CQE_ENTRY_SIZE 32
>> +#define HNS_ROCE_V1_PAGE_SIZE_SUPPORT 0xFFFFF000
>> +
>
> Please fix indentation
>
I have checked it. no indentation in my edition and vi
>> #define SLEEP_TIME_INTERVAL 20
>>
>> extern int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool enable);
>> diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
>> index d5ccce2..b487b57 100644
>> --- a/drivers/infiniband/hw/hns/hns_roce_main.c
>> +++ b/drivers/infiniband/hw/hns/hns_roce_main.c
>> @@ -125,6 +125,11 @@ static int hns_roce_engine_reset(struct hns_roce_dev *hr_dev, bool enable)
>> return hr_dev->hw->reset(hr_dev, enable);
>> }
>>
>> +static void hns_roce_profile_init(struct hns_roce_dev *hr_dev)
>
> No need to create function for one line of code which will be called
> once only.
>
Yes, I will modify it and send a new patch at soon
Thanks
Lijun Ou
>> +{
>> + hr_dev->hw->hw_profile(hr_dev);
>> +}
>> +
>> /**
>> * hns_roce_probe - RoCE driver entrance
>> * @pdev: pointer to platform device
>> @@ -169,6 +174,8 @@ static int hns_roce_probe(struct platform_device *pdev)
>> goto error_failed_get_cfg;
>> }
>>
>> + hns_roce_profile_init(hr_dev);
>> +
>> error_failed_get_cfg:
>> ib_dealloc_device(&hr_dev->ib_dev);
>>
>> --
>> 1.9.1
>>
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