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From: "Wei Hu (Xavier)" <xavier.huwei@huawei.com>
To: Leon Romanovsky <leon@kernel.org>
Cc: dledford@redhat.com, jgg@ziepe.ca, linux-rdma@vger.kernel.org,
	linux-kernel@vger.kernel.org, xavier.huwei@tom.com,
	lijun_nudt@163.com
Subject: Re: [PATCH rdma-next 3/5] RDMA/hns: Increase checking CMQ status timeout value
Date: Wed, 23 May 2018 14:15:48 +0800	[thread overview]
Message-ID: <5B050714.2040205@huawei.com> (raw)
In-Reply-To: <5B0505A9.8040908@huawei.com>



On 2018/5/23 14:09, Wei Hu (Xavier) wrote:
>
> On 2018/5/23 13:49, Leon Romanovsky wrote:
>> On Thu, May 17, 2018 at 04:02:51PM +0800, Wei Hu (Xavier) wrote:
>>> This patch increases checking CMQ status timeout value and
>>> uses the same value with NIC driver to avoid deficiency of
>>> time.
>>>
>>> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
>>> ---
>>>  drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> index 182b672..f16df1b 100644
>>> --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> @@ -76,7 +76,7 @@
>>>  #define HNS_ROCE_V2_PAGE_SIZE_SUPPORTED		0xFFFFF000
>>>  #define HNS_ROCE_V2_MAX_INNER_MTPT_NUM		2
>>>  #define HNS_ROCE_INVALID_LKEY			0x100
>>> -#define HNS_ROCE_CMQ_TX_TIMEOUT			200
>>> +#define HNS_ROCE_CMQ_TX_TIMEOUT			30000
>> Don't you think that loop of 30 seconds too much?
>>
>> Thanks
> Leon, 30ms
Because firmware take turns excuting NIC and RoCE command.
Although RoCE command does not  take so long,  we still use
the same timeout value with NIC driver.
Thanks
>>>  #define HNS_ROCE_CONTEXT_HOP_NUM		1
>>>  #define HNS_ROCE_MTT_HOP_NUM			1
>>> --
>>> 1.9.1
>>>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
> .
>

WARNING: multiple messages have this Message-ID (diff)
From: "Wei Hu (Xavier)" <xavier.huwei@huawei.com>
To: Leon Romanovsky <leon@kernel.org>
Cc: <dledford@redhat.com>, <jgg@ziepe.ca>,
	<linux-rdma@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<xavier.huwei@tom.com>, <lijun_nudt@163.com>
Subject: Re: [PATCH rdma-next 3/5] RDMA/hns: Increase checking CMQ status timeout value
Date: Wed, 23 May 2018 14:15:48 +0800	[thread overview]
Message-ID: <5B050714.2040205@huawei.com> (raw)
In-Reply-To: <5B0505A9.8040908@huawei.com>



On 2018/5/23 14:09, Wei Hu (Xavier) wrote:
>
> On 2018/5/23 13:49, Leon Romanovsky wrote:
>> On Thu, May 17, 2018 at 04:02:51PM +0800, Wei Hu (Xavier) wrote:
>>> This patch increases checking CMQ status timeout value and
>>> uses the same value with NIC driver to avoid deficiency of
>>> time.
>>>
>>> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
>>> ---
>>>  drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> index 182b672..f16df1b 100644
>>> --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
>>> @@ -76,7 +76,7 @@
>>>  #define HNS_ROCE_V2_PAGE_SIZE_SUPPORTED		0xFFFFF000
>>>  #define HNS_ROCE_V2_MAX_INNER_MTPT_NUM		2
>>>  #define HNS_ROCE_INVALID_LKEY			0x100
>>> -#define HNS_ROCE_CMQ_TX_TIMEOUT			200
>>> +#define HNS_ROCE_CMQ_TX_TIMEOUT			30000
>> Don't you think that loop of 30 seconds too much?
>>
>> Thanks
> Leon, 30ms
Because firmware take turns excuting NIC and RoCE command.
Although RoCE command does not  take so long,  we still use
the same timeout value with NIC driver.
Thanks
>>>  #define HNS_ROCE_CONTEXT_HOP_NUM		1
>>>  #define HNS_ROCE_MTT_HOP_NUM			1
>>> --
>>> 1.9.1
>>>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
> .
>

  reply	other threads:[~2018-05-23  6:15 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-17  8:02 [PATCH rdma-next 0/5] Misc update for hns driver Wei Hu (Xavier)
2018-05-17  8:02 ` Wei Hu (Xavier)
2018-05-17  8:02 ` [PATCH rdma-next 1/5] RDMA/hns: Implement the disassociate_ucontext API Wei Hu (Xavier)
2018-05-17  8:02   ` Wei Hu (Xavier)
2018-05-17 15:00   ` Jason Gunthorpe
2018-05-19  8:24     ` Wei Hu (Xavier)
2018-05-19  8:24       ` Wei Hu (Xavier)
2018-05-22 20:21       ` Jason Gunthorpe
2018-05-23  9:33         ` Wei Hu (Xavier)
2018-05-23  9:33           ` Wei Hu (Xavier)
2018-05-17  8:02 ` [PATCH rdma-next 2/5] RDMA/hns: Modify uar allocation algorithm to avoid bitmap exhaust Wei Hu (Xavier)
2018-05-17  8:02   ` Wei Hu (Xavier)
2018-05-23  6:05   ` Leon Romanovsky
2018-05-23  6:49     ` Wei Hu (Xavier)
2018-05-23  6:49       ` Wei Hu (Xavier)
2018-05-23  7:00       ` Leon Romanovsky
2018-05-23  7:12         ` Wei Hu (Xavier)
2018-05-23  7:12           ` Wei Hu (Xavier)
2018-05-23  7:22           ` Leon Romanovsky
2018-05-17  8:02 ` [PATCH rdma-next 3/5] RDMA/hns: Increase checking CMQ status timeout value Wei Hu (Xavier)
2018-05-17  8:02   ` Wei Hu (Xavier)
2018-05-23  5:49   ` Leon Romanovsky
2018-05-23  6:09     ` Wei Hu (Xavier)
2018-05-23  6:09       ` Wei Hu (Xavier)
2018-05-23  6:15       ` Wei Hu (Xavier) [this message]
2018-05-23  6:15         ` Wei Hu (Xavier)
2018-05-23  6:23         ` Leon Romanovsky
2018-05-17  8:02 ` [PATCH rdma-next 4/5] RDMA/hns: Add reset process for RoCE in hip08 Wei Hu (Xavier)
2018-05-17  8:02   ` Wei Hu (Xavier)
2018-05-17 15:14   ` Jason Gunthorpe
2018-05-18  3:28     ` Wei Hu (Xavier)
2018-05-18  3:28       ` Wei Hu (Xavier)
2018-05-18  4:15       ` Jason Gunthorpe
2018-05-18  7:23         ` Wei Hu (Xavier)
2018-05-18  7:23           ` Wei Hu (Xavier)
2018-05-22 20:26           ` Jason Gunthorpe
2018-05-23  2:54             ` Wei Hu (Xavier)
2018-05-23  2:54               ` Wei Hu (Xavier)
2018-05-23  3:47               ` Jason Gunthorpe
2018-05-23  9:35                 ` Wei Hu (Xavier)
2018-05-23  9:35                   ` Wei Hu (Xavier)
2018-05-23  3:49               ` Wei Hu (Xavier)
2018-05-23  3:49                 ` Wei Hu (Xavier)
2018-05-17  8:02 ` [PATCH rdma-next 5/5] RDMA/hns: Fix the illegal memory operation when cross page Wei Hu (Xavier)
2018-05-17  8:02   ` Wei Hu (Xavier)
2018-05-23  6:17   ` Leon Romanovsky
2018-05-23  6:38     ` Wei Hu (Xavier)
2018-05-23  6:38       ` Wei Hu (Xavier)

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