Messages in this thread | | | Date | Mon, 14 Nov 2016 16:21:37 -0500 (EST) | Subject | Re: [PATCH v2 0/2] bnx2: Wait for in-flight DMA to complete at probe stage | From | David Miller <> |
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From: Baoquan He <bhe@redhat.com> Date: Sun, 13 Nov 2016 13:01:31 +0800
> This is v2 post. > > In commit 3e1be7a ("bnx2: Reset device during driver initialization"), > firmware requesting code was moved from open stage to probe stage. > The reason is in kdump kernel hardware iommu need device be reset in > driver probe stage, otherwise those in-flight DMA from 1st kernel > will continue going and look up into the newly created io-page tables. > However bnx2 chip resetting involves firmware requesting issue, that > need be done in open stage. > > Michale Chan suggested we can just wait for the old in-flight DMA to > complete at probe stage, then though without device resetting, we > don't need to worry the old in-flight DMA could continue looking up > the newly created io-page tables. > > v1->v2: > Michael suggested to wait for the in-flight DMA to complete at probe > stage. So give up the old method of trying to reset chip at probe > stage, take the new way accordingly.
Series applied and queued up for -stable, thanks.
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