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From: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Jason Gunthorpe <jgg-uk2M96/98Pc@public.gmane.org>
Cc: Dennis Dalessandro
	<dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Mike Marciniszyn
	<mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Ira Weiny <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Alex Estrin <alex.estrin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH for-next 16/16] IB/ipoib: Fix for potential no-carrier state
Date: Fri, 26 Jan 2018 12:09:56 -0500	[thread overview]
Message-ID: <1516986596.27592.209.camel@redhat.com> (raw)
In-Reply-To: <20180126170610.GD23869-uk2M96/98Pc@public.gmane.org>

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On Fri, 2018-01-26 at 10:06 -0700, Jason Gunthorpe wrote:
> On Fri, Jan 26, 2018 at 12:00:11PM -0500, Doug Ledford wrote:
> 
> > device, there is that window from our first ib_query_pkey call until we
> > complete the ib_register_event_handler() call for the pkey to change. 
> > Instead of throwing the flush regardless, it might be nicer to do:
> 
> Can we move the ib_register_event_handler sooner?

I didn't do a full audit, but I'm not sure it's safe to, simply because
we haven't fully completed our device setup and if our event handler is
live, we can get event triggered activities that might expect everything
to be done.  It would take a complete audit to know for sure.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
    GPG KeyID: B826A3330E572FDD
    Key fingerprint = AE6B 1BDA 122B 23B4 265B  1274 B826 A333 0E57 2FDD

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  parent reply	other threads:[~2018-01-26 17:09 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-26 14:31 [PATCH for-next 00/16] IB/hfi1,core: Driver updates for 1/26/2018 Dennis Dalessandro
     [not found] ` <20180126142640.6868.12402.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2018-01-26 14:31   ` [PATCH for-next 01/16] IB/hfi1: Do not override given pcie_pset value Dennis Dalessandro
2018-01-26 14:31   ` [PATCH for-next 02/16] IB/hfi1: Fix for early release of sdma context Dennis Dalessandro
2018-01-26 14:31   ` [PATCH for-next 03/16] IB/hfi1: Remove dependence on qp->s_hdrwords Dennis Dalessandro
2018-01-26 14:31   ` [PATCH for-next 04/16] IB/hfi1: Remove blind constants from 16B update Dennis Dalessandro
2018-01-26 14:31   ` [PATCH for-next 05/16] IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 06/16] IB/hfi1: hfi1_open_file() missing kobject_put in err path Dennis Dalessandro
     [not found]     ` <20180126143203.6868.85360.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2018-01-26 15:51       ` Jason Gunthorpe
2018-01-26 14:32   ` [PATCH for-next 07/16] IB/hfi1: Show fault stats in both TX and RX directions Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 08/16] IB/hfi1: Prevent LNI hang when LCB can't obtain lanes Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 09/16] IB/hfi1: Compute BTH only for RDMA_WRITE_LAST/SEND_LAST packet Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 10/16] IB/hfi1: Optimize packet type comparison using 9B and bypass code paths Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 11/16] IB/hfi1: Look up ibport using a pointer in receive path Dennis Dalessandro
2018-01-26 14:32   ` [PATCH for-next 12/16] IB/hfi1: Remove unnecessary fecn and becn fields Dennis Dalessandro
2018-01-26 14:33   ` [PATCH for-next 13/16] IB/hfi1: Optimize process_receive_ib() Dennis Dalessandro
2018-01-26 14:33   ` [PATCH for-next 14/16] IB/hfi1: Re-order IRQ cleanup to address driver cleanup race Dennis Dalessandro
2018-01-26 14:33   ` [PATCH for-next 15/16] IB/core: Map iWarp AH type to undefined in rdma_ah_find_type Dennis Dalessandro
     [not found]     ` <20180126143315.6868.67354.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2018-01-26 15:45       ` Jason Gunthorpe
     [not found]         ` <20180126154540.GA23869-uk2M96/98Pc@public.gmane.org>
2018-01-26 15:58           ` Dennis Dalessandro
     [not found]             ` <ce815670-cf1b-5199-9a52-2779cb8f8c75-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2018-01-26 17:47               ` Parav Pandit
2018-01-26 18:55       ` Shiraz Saleem
2018-01-26 14:33   ` [PATCH for-next 16/16] IB/ipoib: Fix for potential no-carrier state Dennis Dalessandro
     [not found]     ` <20180126143323.6868.89162.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2018-01-26 17:00       ` Doug Ledford
     [not found]         ` <1516986011.27592.207.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-26 17:06           ` Jason Gunthorpe
     [not found]             ` <20180126170610.GD23869-uk2M96/98Pc@public.gmane.org>
2018-01-26 17:09               ` Doug Ledford [this message]
     [not found]                 ` <1516986596.27592.209.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-26 17:27                   ` Estrin, Alex
2018-01-26 17:18           ` Estrin, Alex

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