From mboxrd@z Thu Jan 1 00:00:00 1970 From: Knut Omang Subject: Re: [RFC 0/8] Copy Offload with Peer-to-Peer PCI Memory Date: Mon, 24 Apr 2017 09:36:37 +0200 Message-ID: <1493019397.3171.118.camel@oracle.com> References: <1490911959-5146-1-git-send-email-logang@deltatee.com> <1491974532.7236.43.camel@kernel.crashing.org> <5ac22496-56ec-025d-f153-140001d2a7f9@deltatee.com> <1492034124.7236.77.camel@kernel.crashing.org> <81888a1e-eb0d-cbbc-dc66-0a09c32e4ea2@deltatee.com> <20170413232631.GB24910@bhelgaas-glaptop.roam.corp.google.com> <20170414041656.GA30694@obsidianresearch.com> <1492169849.25766.3.camel@kernel.crashing.org> <630c1c63-ff17-1116-e069-2b8f93e50fa2@deltatee.com> <20170414190452.GA15679@bhelgaas-glaptop.roam.corp.google.com> <1492207643.25766.18.camel@kernel.crashing.org> <1492311719.25766.37.camel@kernel.crashing.org> <5e43818e-8c6b-8be8-23ff-b798633d2a73@deltatee.com> <1492381907.25766.49.camel@kernel.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1492381907.25766.49.camel-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@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: Benjamin Herrenschmidt , Logan Gunthorpe , Dan Williams Cc: Jens Axboe , Keith Busch , "James E.J. Bottomley" , "Martin K. Petersen" , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Steve Wise , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , linux-nvme-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Jason Gunthorpe , Jerome Glisse , Bjorn Helgaas , linux-scsi , linux-nvdimm , Max Gurtovoy , Christoph Hellwig List-Id: linux-rdma@vger.kernel.org T24gTW9uLCAyMDE3LTA0LTE3IGF0IDA4OjMxICsxMDAwLCBCZW5qYW1pbiBIZXJyZW5zY2htaWR0 IHdyb3RlOgo+IE9uIFN1biwgMjAxNy0wNC0xNiBhdCAxMDozNCAtMDYwMCwgTG9nYW4gR3VudGhv cnBlIHdyb3RlOgo+ID7CoAo+ID4gT24gMTYvMDQvMTcgMDk6NTMgQU0sIERhbiBXaWxsaWFtcyB3 cm90ZToKPiA+ID4gWk9ORV9ERVZJQ0UgYWxsb3dzIHlvdSB0byByZWRpcmVjdCB2aWEgZ2V0X2Rl dl9wYWdlbWFwKCkgdG8gcmV0cmlldmUKPiA+ID4gY29udGV4dCBhYm91dCB0aGUgcGh5c2ljYWwg YWRkcmVzcyBpbiBxdWVzdGlvbi4gSSdtIHRoaW5raW5nIHlvdSBjYW4KPiA+ID4gaGFuZyBidXMg YWRkcmVzcyB0cmFuc2xhdGlvbiBkYXRhIG9mZiBvZiB0aGF0IHN0cnVjdHVyZS4gVGhpcyBzZWVt cwo+ID4gPiB2YWd1ZWx5IHNpbWlsYXIgdG8gd2hhdCBITU0gaXMgZG9pbmcuCj4gPsKgCj4gPiBU aGFua3MhIEkgZGlkbid0IHJlYWxpemUgeW91IGhhZCB0aGUgaW5mcmFzdHJ1Y3R1cmUgdG8gbG9v ayB1cCBhIGRldmljZQo+ID4gZnJvbSBhIHBmbi9wYWdlLiBUaGF0IHdvdWxkIHJlYWxseSBjb21l IGluIGhhbmR5IGZvciB1cy4KPiAKPiBJdCBkb2VzIGluZGVlZC4gSSB3b24ndCBiZSBhYmxlIHRv IHBsYXkgd2l0aCB0aGF0IG11Y2ggZm9yIGEgZmV3IHdlZWtzCj4gKHNlZSBteSBvdGhlciBlbWFp bCkgc28gaWYgeW91J3JlIGdvaW5nIHRvIHRhY2tsZSB0aGlzIHdoaWxlIEknbSBhd2F5LAo+IGNh biB5b3Ugd29yayB3aXRoIEplcm9tZSB0byBtYWtlIHN1cmUgeW91IGRvbid0IGNvbmZsaWN0IHdp dGggSE1NID8KPiAKPiBJIHJlYWxseSB3YW50IGEgd2F5IGZvciBITU0gdG8gYmUgYWJsZSB0byBs YXlvdXQgc3RydWN0IHBhZ2VzIG92ZXIgdGhlCj4gR1BVIEJBUnMgcmF0aGVyIHRoYW4gaW4gImFs bG9jYXRlZCBmcmVlIHNwYWNlIiBmb3IgdGhlIGNhc2Ugd2hlcmUgdGhlCj4gQkFSIGlzIGJpZyBl bm91Z2ggdG8gY292ZXIgYWxsIG9mIHRoZSBHUFUgbWVtb3J5Lgo+IAo+IEluIGdlbmVyYWwsIEkn ZCBsaWtlIGEgc2ltcGxlICYgZ2VuZXJpYyB3YXkgZm9yIGFueSBkcml2ZXIgdG8gYXNrIHRoZQo+ IGNvcmUgdG8gbGF5b3V0IERNQSdibGUgc3RydWN0IHBhZ2VzIG92ZXIgQkFSIHNwYWNlLiBJIGFu IG5vdCBjb252aW5jZWQKPiB0aGlzIHJlcXVpcmVzIGEgInAybWVtIGRldmljZSIgdG8gYmUgY3Jl YXRlZCBvbiB0b3Agb2YgdGhpcyB0aG91Z2ggYnV0Cj4gdGhhdCdzIGEgZGlmZmVyZW50IGRpc2N1 c3Npb24uCj4gCj4gT2YgY291cnNlIHRoZSBhY3R1YWwgYWJpbGl0eSB0byBwZXJmb3JtIHRoZSBE TUEgbWFwcGluZyB3aWxsIGJlIHN1YmplY3QKPiB0byB2YXJpb3VzIHJlc3RyaWN0aW9ucyB0aGF0 IHdpbGwgaGF2ZSB0byBiZSBpbXBsZW1lbnRlZCBpbiB0aGUgYWN0dWFsCj4gImRtYV9vcHMgb3Zl cnJpZGUiIGJhY2tlbmQuIFdlIGNhbiBoYXZlIGdlbmVyaWMgY29kZSB0byBoYW5kbGUgdGhlIGNh c2UKPiB3aGVyZSBkZXZpY2VzIHJlc2lkZSBvbiB0aGUgc2FtZSBkb21haW4sIHdoaWNoIGNhbiBk ZWFsIHdpdGggc3dpdGNoCj4gY29uZmlndXJhdGlvbiBldGMuLi4gd2Ugd2lsbCBuZWVkIHRvIGhh dmUgaW9tbXUgc3BlY2lmaWMgY29kZSB0byBoYW5kbGUKPiB0aGUgY2FzZSBnb2luZyB0aHJvdWdo IHRoZSBmYWJyaWMuwqAKPiAKPiBWaXJ0dWFsaXphdGlvbiBpcyBhIHNlcGFyYXRlIGNhbiBvZiB3 b3JtcyBkdWUgdG8gaG93IHFlbXUgY29tcGxldGVseQo+IGZha2VzIHRoZSBNTUlPIHNwYWNlLCB3 ZSBjYW4gbG9vayBpbnRvIHRoYXQgbGF0ZXIuCgpNeSBmaXJzdCByZWZsZXggd2hlbiByZWFkaW5n IHRoaXMgdGhyZWFkIHdhcyB0byB0aGluayB0aGF0IHRoaXMgd2hvbGUgZG9tYWluCmxlbmRzIGl0 IHNlbGYgZXhjZWxsZW50bHkgdG8gdGVzdGluZyB2aWEgUWVtdS4gQ291bGQgaXQgYmUgdGhhdCBk b2luZyB0aGlzIGluwqAKdGhlIG9wcG9zaXRlIGRpcmVjdGlvbiBtaWdodCBiZSBhIHNhZmVyIGFw cHJvYWNoIGluIHRoZSBsb25nIHJ1biBldmVuIHRob3VnaMKgCihzaWduaWZpY2FudCkgbW9yZSB3 b3JrIHVwLWZyb250PwoKRWcuIHN0YXJ0IGJ5IGZpeGluZy9wcm92aWRpbmcvZG9jdW1lbnRpbmcg c3VpdGFibGUgbW9kZWwocynCoApmb3IgdGVzdGluZyB0aGlzIGluIFFlbXUsIHRoZW4gaW1wbGVt ZW50IHRoZSBwYXRjaCBzZXQgYmFzZWTCoApvbiB0aG9zZSBtb2RlbHM/CgpUaGFua3MsCktudXQK Cj4gCj4gQ2hlZXJzLAo+IEJlbi4KPiAKPiAtLQo+IFRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBs aXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51eC1yZG1hIiBpbgo+IHRoZSBib2R5 IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnCj4gTW9yZSBtYWpvcmRv bW8gaW5mbyBhdMKgwqBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXgtbnZk aW1tIG1haWxpbmcgbGlzdApMaW51eC1udmRpbW1AbGlzdHMuMDEub3JnCmh0dHBzOi8vbGlzdHMu MDEub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZkaW1tCg==