2020-05-09 09:30:59

by Huazhong Tan

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Subject: [PATCH net-next 3/5] net: hns3: provide .get_cmdq_stat interface for the client

This patch provides a new interface for the client to query
whether CMDQ is ready to work.

Signed-off-by: Huazhong Tan <[email protected]>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 9 +++++++++
2 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 5602bf2..7506cab 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -552,6 +552,7 @@ struct hnae3_ae_ops {
int (*set_vf_mac)(struct hnae3_handle *handle, int vf, u8 *p);
int (*get_module_eeprom)(struct hnae3_handle *handle, u32 offset,
u32 len, u8 *data);
+ bool (*get_cmdq_stat)(struct hnae3_handle *handle);
};

struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 3ad6a6a..1ff896a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6402,6 +6402,14 @@ static bool hclge_get_hw_reset_stat(struct hnae3_handle *handle)
hclge_read_dev(&hdev->hw, HCLGE_FUN_RST_ING);
}

+static bool hclge_get_cmdq_stat(struct hnae3_handle *handle)
+{
+ struct hclge_vport *vport = hclge_get_vport(handle);
+ struct hclge_dev *hdev = vport->back;
+
+ return test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+}
+
static bool hclge_ae_dev_resetting(struct hnae3_handle *handle)
{
struct hclge_vport *vport = hclge_get_vport(handle);
@@ -11311,6 +11319,7 @@ static const struct hnae3_ae_ops hclge_ops = {
.set_vf_rate = hclge_set_vf_rate,
.set_vf_mac = hclge_set_vf_mac,
.get_module_eeprom = hclge_get_module_eeprom,
+ .get_cmdq_stat = hclge_get_cmdq_stat,
};

static struct hnae3_ae_algo ae_algo = {
--
2.7.4


2020-05-09 20:51:03

by Jakub Kicinski

[permalink] [raw]
Subject: Re: [PATCH net-next 3/5] net: hns3: provide .get_cmdq_stat interface for the client

On Sat, 9 May 2020 17:27:39 +0800 Huazhong Tan wrote:
> This patch provides a new interface for the client to query
> whether CMDQ is ready to work.
>
> Signed-off-by: Huazhong Tan <[email protected]>

> diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> index 5602bf2..7506cab 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> @@ -552,6 +552,7 @@ struct hnae3_ae_ops {
> int (*set_vf_mac)(struct hnae3_handle *handle, int vf, u8 *p);
> int (*get_module_eeprom)(struct hnae3_handle *handle, u32 offset,
> u32 len, u8 *data);
> + bool (*get_cmdq_stat)(struct hnae3_handle *handle);
> };

I don't see anything in this series using this new interface, why is it
added now?

2020-05-11 00:16:04

by Huazhong Tan

[permalink] [raw]
Subject: Re: [PATCH net-next 3/5] net: hns3: provide .get_cmdq_stat interface for the client



On 2020/5/10 4:48, Jakub Kicinski wrote:
> On Sat, 9 May 2020 17:27:39 +0800 Huazhong Tan wrote:
>> This patch provides a new interface for the client to query
>> whether CMDQ is ready to work.
>>
>> Signed-off-by: Huazhong Tan <[email protected]>
>
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> index 5602bf2..7506cab 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> @@ -552,6 +552,7 @@ struct hnae3_ae_ops {
>> int (*set_vf_mac)(struct hnae3_handle *handle, int vf, u8 *p);
>> int (*get_module_eeprom)(struct hnae3_handle *handle, u32 offset,
>> u32 len, u8 *data);
>> + bool (*get_cmdq_stat)(struct hnae3_handle *handle);
>> };
>
> I don't see anything in this series using this new interface, why is it
> added now?
>

Hi, Jakub.

This interface is needed by the roce client, whose patch will be
upstreamed to the rdma tree, it is other branch. So we provide this
interface previously, then the rdma guy will upstream their patch later,
maybe linux-5.8-rc*.

Thanks.

> .
>

2020-05-11 02:49:31

by Jakub Kicinski

[permalink] [raw]
Subject: Re: [PATCH net-next 3/5] net: hns3: provide .get_cmdq_stat interface for the client

On Mon, 11 May 2020 08:13:06 +0800 tanhuazhong wrote:
> On 2020/5/10 4:48, Jakub Kicinski wrote:
> > On Sat, 9 May 2020 17:27:39 +0800 Huazhong Tan wrote:
> >> diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> >> index 5602bf2..7506cab 100644
> >> --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> >> +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> >> @@ -552,6 +552,7 @@ struct hnae3_ae_ops {
> >> int (*set_vf_mac)(struct hnae3_handle *handle, int vf, u8 *p);
> >> int (*get_module_eeprom)(struct hnae3_handle *handle, u32 offset,
> >> u32 len, u8 *data);
> >> + bool (*get_cmdq_stat)(struct hnae3_handle *handle);
> >> };
> >
> > I don't see anything in this series using this new interface, why is it
> > added now?
>
> This interface is needed by the roce client, whose patch will be
> upstreamed to the rdma tree, it is other branch. So we provide this
> interface previously, then the rdma guy will upstream their patch later,
> maybe linux-5.8-rc*.

Understood. Please make sure to include this kind of information in the
cover letter in the future.