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From: Leon Romanovsky <leon@kernel.org>
To: "Wei Hu (Xavier)" <xavier.huwei@huawei.com>
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 09:23:46 +0300	[thread overview]
Message-ID: <20180523062346.GB5729@mtr-leonro.mtl.com> (raw)
In-Reply-To: <5B050714.2040205@huawei.com>

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On Wed, May 23, 2018 at 02:15:48PM +0800, Wei Hu (Xavier) wrote:
>
>
> 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.

Sorry, you are right it is 30ms and not 30s.

Thanks,
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>

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

Thread overview: 30+ 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 ` [PATCH rdma-next 1/5] RDMA/hns: Implement the disassociate_ucontext API Wei Hu (Xavier)
2018-05-17 15:00   ` Jason Gunthorpe
2018-05-19  8:24     ` Wei Hu (Xavier)
2018-05-22 20:21       ` Jason Gunthorpe
2018-05-23  9:33         ` Wei Hu (Xavier)
2018-05-17  8:02 ` [PATCH rdma-next 2/5] RDMA/hns: Modify uar allocation algorithm to avoid bitmap exhaust Wei Hu (Xavier)
2018-05-23  6:05   ` Leon Romanovsky
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  7:22           ` Leon Romanovsky
2018-05-17  8:02 ` [PATCH rdma-next 3/5] RDMA/hns: Increase checking CMQ status timeout value Wei Hu (Xavier)
2018-05-23  5:49   ` Leon Romanovsky
2018-05-23  6:09     ` Wei Hu (Xavier)
2018-05-23  6:15       ` Wei Hu (Xavier)
2018-05-23  6:23         ` Leon Romanovsky [this message]
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 15:14   ` Jason Gunthorpe
2018-05-18  3:28     ` Wei Hu (Xavier)
2018-05-18  4:15       ` Jason Gunthorpe
2018-05-18  7:23         ` Wei Hu (Xavier)
2018-05-22 20:26           ` Jason Gunthorpe
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  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)
2018-05-23  6:17   ` Leon Romanovsky
2018-05-23  6:38     ` Wei Hu (Xavier)

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