linux-kernel - RE: [PATCH 03/16] ntb: Enable link training for RP mode in the driver probe

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Date:	Thu, 21 May 2015 12:49:05 +0000
From:	"Hubbe, Allen" <Allen.Hubbe@....com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Jon Mason <jdmason@...zu.us>, Dave Jiang <dave.jiang@...el.com>
Subject: RE: [PATCH 03/16] ntb: Enable link training for RP mode in the
 driver probe

From: linux-pci-owner@...r.kernel.org [mailto:linux-pci-owner@...r.kernel.org] On Behalf Of Bjorn Helgaas
> On Wed, May 20, 2015 at 6:00 PM, Hubbe, Allen <Allen.Hubbe@....com>
> wrote:
> > From: Bjorn Helgaas [mailto:bhelgaas@...gle.com]
> >> On Wed, May 20, 2015 at 4:46 PM, Hubbe, Allen <Allen.Hubbe@....com>
> >> wrote:
> >> > From: Bjorn Helgaas [mailto:bhelgaas@...gle.com]
> >> >> Please run "git log --oneline drivers/ntb" and make your subject
> >> lines
> >> >> consistent.  The convention I use in PCI (and what was used in NTB
> >> >> until recently) is
> >> >>
> >> >>   - Acronyms and initialisms are capitalized
> >> >>   - Subject line is a subsystem prefix ("PCI:", "NTB:", etc.)
> >> followed
> >> >> by a complete sentence starting with a capitalized verb, with no
> >> >> period at the end
> >> >
> >> > These are the new subject lines that will be in the v2 of this set.
> >>
> >> That helps a lot, thanks.
> >>
> >> > NTB: Fix small code format issues in transport
> >> > NTB: Default to CPU memcpy for performance
> >> > NTB: Improve performance with write combining
> >> > NTB: Use NUMA aware memory allocation
> >> > NTB: Use NUMA memory and DMA chan in transport
> >> > NTB: Reset transport QP link stats on down
> >> > NTB: Do not advance transport RX on link down
> >> > NTB: Differentiate transport link down messages
> >> > NTB: Rate limit ntb_qp_link_work
> >> > NTB: Add tool client
> >> > NTB: Add ping pong client
> >>
> >> I think these are test cases, not part of the kernel itself.  It'd be
> >> nice to know that from the summary.  I don't know what the precedent
> >> is for that (if there is one).
> >
> > Would you consider this as precedent:
> >
> > 4a776f0 dmatest: Simple DMA memcpy test client
> >
> >>
> >> > NTB: Intel NTB params for SNB B2B addresses
> >>
> >> This sentence no verb :)  Not sure what you're doing with those
> params.
> >
> > NTB: Add parameters for Intel SNB B2B addresses
> >
> >>
> >> > NTB: Check the DID for workaround error flags
> >>
> >> I think there's room to spell out "device ID".
> >
> > NTB: Check the device ID to set errata flags
> >
> > Also, add this prose description to this commit:
> >
> > Set errata flags for the specific device IDs to which they apply,
> > instead of the whole xeon hardware class.
> >
> >>
> >> > NTB: Enable link training for RP mode in probe
> >>
> >> Is that Root Port?
> >
> > yes
> >
> >>
> >> > NTB: Add NTB hardware abstraction layer
> >> > NTB: Move files in preparation for NTB abstraction
> 
> All looks good to me!

Thanks!