From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: Enabling peer to peer device transactions for PCIe devices Date: Mon, 28 Nov 2016 13:31:55 +0800 Message-ID: <583BC14B.2040809@amd.com> References: <20161123190515.GA12146@obsidianresearch.com> <7bc38037-b6ab-943f-59db-6280e16901ab@amd.com> <20161123193228.GC12146@obsidianresearch.com> <20161123203332.GA15062@obsidianresearch.com> <20161123215510.GA16311@obsidianresearch.com> <91d28749-bc64-622f-56a1-26c00e6b462a@deltatee.com> <20161124164249.GD20818@obsidianresearch.com> <3f2d2db3-fb75-2422-2a18-a8497fd5d70e@amd.com> <20161125193252.GC16504@obsidianresearch.com> <0087fba9-7bcb-8bb3-c26e-4ef3e4970c34@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <0087fba9-7bcb-8bb3-c26e-4ef3e4970c34-5C7GfCeVMHo@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" To: =?UTF-8?B?Q2hyaXN0aWFuIEvDtm5pZw==?= , Haggai Eran , Jason Gunthorpe , "Yu, Qiang" Cc: "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org" , "Kuehling, Felix" , Serguei Sagalovitch , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "Sander, Ben" , "Suthikulpanit, Suravee" , "linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Deucher, Alexander" , Max Gurtovoy , "Blinzer, Paul" , "Linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-rdma@vger.kernel.org K1FpYW5nLCB3aG8gaXMgd29ya2luZyBvbiBpdC4KCk9uIDIwMTblubQxMeaciDI35pelIDIyOjA3 LCBDaHJpc3RpYW4gS8O2bmlnIHdyb3RlOgo+IEFtIDI3LjExLjIwMTYgdW0gMTU6MDIgc2Nocmll YiBIYWdnYWkgRXJhbjoKPj4gT24gMTEvMjUvMjAxNiA5OjMyIFBNLCBKYXNvbiBHdW50aG9ycGUg d3JvdGU6Cj4+PiBPbiBGcmksIE5vdiAyNSwgMjAxNiBhdCAwMjoyMjoxN1BNICswMTAwLCBDaHJp c3RpYW4gS8O2bmlnIHdyb3RlOgo+Pj4KPj4+Pj4gTGlrZSB5b3Ugc2F5IGJlbG93IHdlIGhhdmUg dG8gaGFuZGxlIHNob3J0IGxpdmVkIGluIHRoZSB1c3VhbCB3YXksIAo+Pj4+PiBhbmQKPj4+Pj4g dGhhdCBjb3ZlcnMgYmFzaWNhbGx5IGV2ZXJ5IGRldmljZSBleGNlcHQgSUIgTVJzLCBpbmNsdWRp bmcgdGhlCj4+Pj4+IGNvbW1hbmQgcXVldWUgb24gYSBOVk1lIGRyaXZlLgo+Pj4+IFdlbGwgYSBw cm9ibGVtIHdoaWNoIHdhc24ndCBtZW50aW9uZWQgc28gZmFyIGlzIHRoYXQgd2hpbGUgR1BVcyBk byAKPj4+PiBoYXZlIGEKPj4+PiBwYWdlIHRhYmxlIHRvIG1pcnJvciB0aGUgQ1BVIHBhZ2UgdGFi bGUsIHRoZXkgdXN1YWxseSBjYW4ndCByZWNvdmVyIAo+Pj4+IGZyb20KPj4+PiBwYWdlIGZhdWx0 cy4KPj4+PiBTbyB3aGF0IHdlIGRvIGlzIG1ha2luZyBzdXJlIHRoYXQgYWxsIG1lbW9yeSBhY2Nl c3NlZCBieSB0aGUgR1BVIAo+Pj4+IEpvYnMgc3RheXMKPj4+PiBpbiBwbGFjZSB3aGlsZSB0aG9z ZSBqb2JzIHJ1biAocHJldHR5IG11Y2ggdGhlIHNhbWUgcGlubmluZyB5b3UgZG8gCj4+Pj4gZm9y IHRoZQo+Pj4+IERNQSkuCj4+PiBZZXMsIGl0IGlzIERNQSwgc28gdGhpcyBpcyBhIHZhbGlkIGFw cHJvYWNoLgo+Pj4KPj4+IEJ1dCwgeW91IGRvbid0IG5lZWQgcGFnZSBmYXVsdHMgZnJvbSB0aGUg R1BVIHRvIGRvIHByb3BlciBjb2hlcmVudAo+Pj4gcGFnZSB0YWJsZSBtaXJyb3JpbmcuIEJhc2lj YWxseSB3aGVuIHRoZSBkcml2ZXIgc3VibWl0cyB0aGUgd29yayB0bwo+Pj4gdGhlIEdQVSBpdCAn ZmF1bHRzJyB0aGUgcGFnZXMgaW50byB0aGUgQ1BVIGFuZCBtaXJyb3IgdHJhbnNsYXRpb24KPj4+ IHRhYmxlIChpbnN0ZWFkIG9mIHBpbm5pbmcpLgo+Pj4KPj4+IExpa2UgaW4gT0RQLCBNTVUgbm90 aWZpZXJzL0hNTSBhcmUgdXNlZCB0byBtb25pdG9yIGZvciB0cmFuc2xhdGlvbgo+Pj4gY2hhbmdl cy4gSWYgYSBjaGFuZ2UgY29tZXMgaW4gdGhlIEdQVSBkcml2ZXIgY2hlY2tzIGlmIGFuIGV4ZWN1 dGluZwo+Pj4gY29tbWFuZCBpcyB0b3VjaGluZyB0aG9zZSBwYWdlcyBhbmQgYmxvY2tzIHRoZSBN TVUgbm90aWZpZXIgdW50aWwgdGhlCj4+PiBjb21tYW5kIGZsdXNoZXMsIHRoZW4gdW5mYXVsdHMg dGhlIHBhZ2UgKGJsb2NraW5nIGZ1dHVyZSBjb21tYW5kcykgYW5kCj4+PiB1bmJsb2NrcyB0aGUg bW11IG5vdGlmaWVyLgo+PiBJIHRoaW5rIGJsb2NraW5nIG1tdSBub3RpZmllcnMgYWdhaW5zdCBz b21ldGhpbmcgdGhhdCBpcyBiYXNpY2FsbHkKPj4gY29udHJvbGxlZCBieSB1c2VyLXNwYWNlIGNh biBiZSBwcm9ibGVtYXRpYy4gVGhpcyBjYW4gYmxvY2sgdGhpbmdzIGxpa2UKPj4gbWVtb3J5IHJl Y2xhaW0uIElmIHlvdSBoYXZlIHVzZXItc3BhY2UgYWNjZXNzIHRvIHRoZSBkZXZpY2UncyBxdWV1 ZXMsCj4+IHVzZXItc3BhY2UgY2FuIGJsb2NrIHRoZSBtbXUgbm90aWZpZXIgZm9yZXZlci4KPiBS ZWFsbHkgZ29vZCBwb2ludC4KPgo+IEkgdGhpbmsgdGhpcyBtZWFucyB0aGUgYmFyZSBtaW5pbXVt IGlmIHdlIGRvbid0IGhhdmUgcmVjb3ZlcmFibGUgcGFnZSAKPiBmYXVsdHMgaXMgdG8gaGF2ZSBw cmVlbXB0aW9uIHN1cHBvcnQgbGlrZSBGZWxpeCBkZXNjcmliZWQgaW4gaGlzIAo+IGFuc3dlciBh cyB3ZWxsLgo+Cj4gR29pbmcgdG8ga2VlcCB0aGF0IGluIG1pbmQsCj4gQ2hyaXN0aWFuLgo+Cj4g X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiBkcmktZGV2 ZWwgbWFpbGluZyBsaXN0Cj4gZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+IGh0dHBz Oi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1udmRpbW0g bWFpbGluZyBsaXN0CkxpbnV4LW52ZGltbUBsaXN0cy4wMS5vcmcKaHR0cHM6Ly9saXN0cy4wMS5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udmRpbW0K