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From: David Laight <David.Laight@ACULAB.COM>
To: "'Casey Leedom'" <leedom@chelsio.com>,
	"Raj, Ashok" <ashok.raj@intel.com>
Cc: Ding Tianhong <dingtianhong@huawei.com>,
	Alexander Duyck <alexander.duyck@gmail.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	"bhelgaas@google.com" <bhelgaas@google.com>,
	"helgaas@kernel.org" <helgaas@kernel.org>,
	"Michael Werner" <werner@chelsio.com>,
	Ganesh GR <ganeshgr@chelsio.com>,
	"asit.k.mallick@intel.com" <asit.k.mallick@intel.com>,
	"patrick.j.cramer@intel.com" <patrick.j.cramer@intel.com>,
	"Suravee.Suthikulpanit@amd.com" <Suravee.Suthikulpanit@amd.com>,
	"Bob.Shaw@amd.com" <Bob.Shaw@amd.com>,
	"l.stach@pengutronix.de" <l.stach@pengutronix.de>,
	"amira@mellanox.com" <amira@mellanox.com>,
	"gabriele.paoloni@huawei.com" <gabriele.paoloni@huawei.com>,
	"jeffrey.t.kirsher@intel.com" <jeffrey.t.kirsher@intel.com>,
	"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"robin.murphy@arm.com" <robin.murphy@arm.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linuxarm@huawei.com" <linuxarm@huawei.com>
Subject: RE: [PATCH v7 2/3] PCI: Enable PCIe Relaxed Ordering if supported
Date: Mon, 7 Aug 2017 09:04:19 +0000	[thread overview]
Message-ID: <063D6719AE5E284EB5DD2968C1650D6DD004C785@AcuExch.aculab.com> (raw)
In-Reply-To: <MWHPR12MB160086C4B4FA8F3B2EC1D5F9C8B60@MWHPR12MB1600.namprd12.prod.outlook.com>

From: Casey Leedom
> Sent: 04 August 2017 21:49
...
> Whenever our Hardware Designers implement new functionality in our hardware,
> they almost always put in A. several "knobs" which can control fundamental
> parameters of the new Hardware Feature, and B.  a mechanism of completely
> disabling it if necessary.  This stems from the incredibly long Design ->
> Deployment cyle for Hardware (as opposed to the edit->compile->run cycle for s!

Indeed, I'd also expect there to be an undocumented flag to turn
it on (broken) in earlier parts to allow testing.

	David

  reply	other threads:[~2017-08-07  9:04 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-13 14:21 [PATCH v7 0/3] Add new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag Ding Tianhong
2017-07-13 14:21 ` [PATCH v7 1/3] PCI: Add new PCIe Fabric End Node flag, PCI_DEV_FLAGS_NO_RELAXED_ORDERING Ding Tianhong
2017-08-03  8:55   ` Raj, Ashok
2017-08-03 10:20     ` Ding Tianhong
2017-07-13 14:21 ` [PATCH v7 2/3] PCI: Enable PCIe Relaxed Ordering if supported Ding Tianhong
2017-07-13 21:09   ` Sinan Kaya
2017-07-14  1:26     ` Ding Tianhong
2017-07-14 13:54       ` Sinan Kaya
2017-07-22  4:19         ` Ding Tianhong
2017-07-24 15:05           ` Alex Williamson
2017-07-26 18:26             ` Casey Leedom
     [not found]               ` <CAKgT0UeAad6WArvrE71MFJywDs1wOnCF-iJRnbNLrL+knqhXeA@mail.gmail.com>
     [not found]                 ` <CAKgT0Uf5hdXUXja_jUB6_kBg6pyX8zXuOMOGzCVNgeBFMUsWqQ@mail.gmail.com>
     [not found]                   ` <CAKgT0Udn2vh6NaqZyiF69nXVnz2sT=e0ZgiDjWznhGZz-Gk+qQ@mail.gmail.com>
2017-07-26 19:05                     ` Casey Leedom
2017-07-27  1:01                       ` Ding Tianhong
2017-07-27 17:44                         ` Casey Leedom
2017-07-27 18:42                           ` Raj, Ashok
2017-07-28  2:57                             ` Ding Tianhong
2017-07-28  2:48                           ` Ding Tianhong
2017-07-27  1:08               ` Ding Tianhong
2017-07-27 17:49                 ` Alexander Duyck
2017-07-28  3:00                   ` Ding Tianhong
2017-08-02 17:53                     ` Casey Leedom
2017-08-03  8:31                       ` Raj, Ashok
2017-08-04 20:20                         ` Casey Leedom
2017-08-04 20:21                           ` Raj, Ashok
2017-08-04 20:48                             ` Casey Leedom
2017-08-07  9:04                               ` David Laight [this message]
2017-08-03  9:13   ` Raj, Ashok
2017-08-03 10:22     ` Ding Tianhong
2017-07-13 14:21 ` [PATCH v7 3/3] net/cxgb4: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag Ding Tianhong
2017-07-13 18:14   ` Alexander Duyck
2017-07-13 18:17     ` Alexander Duyck
2017-07-14  0:00       ` Casey Leedom
     [not found]       ` <MWHPR12MB1600E5A4404EE9D97CD99F88C8AC0@MWHPR12MB1600.namprd12.prod.outlook.com>
2017-07-14 10:23         ` Ding Tianhong
2017-07-14 17:50           ` Casey Leedom

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