From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sagi Grimberg Subject: Re: [PATCH v8 13/13] nvmet: Optionally use PCI P2P memory Date: Mon, 1 Oct 2018 15:23:25 -0700 Message-ID: References: <20180927165420.5290-1-logang@deltatee.com> <20180927165420.5290-14-logang@deltatee.com> <5ddeed51-0580-9581-cf12-c75e18b4f7cc@grimberg.me> <69cd8aab-b94e-98f5-5397-48bb875e8280@deltatee.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <69cd8aab-b94e-98f5-5397-48bb875e8280-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" To: Logan Gunthorpe , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nvme-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Jens Axboe , =?UTF-8?Q?Christian_K=c3=b6nig?= , Benjamin Herrenschmidt , Steve Wise , Alex Williamson , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Jason Gunthorpe , Bjorn Helgaas , Max Gurtovoy , Christoph Hellwig List-Id: linux-rdma@vger.kernel.org Cj4+PiArLyoKPj4+ICsgKiBJZiBhbGxvd19wMnBtZW0gaXMgc2V0LCB3ZSB3aWxsIHRyeSB0byB1 c2UgUDJQIG1lbW9yeSBmb3IgdGhlIFNHTCBsaXN0cyBmb3IKPj4+ICsgKiDOmS9PIGNvbW1hbmRz LiBUaGlzIHJlcXVpcmVzIHRoZSBQQ0kgcDJwIGRldmljZSB0byBiZSBjb21wYXRpYmxlIHdpdGgg dGhlCj4+PiArICogYmFja2luZyBkZXZpY2UgZm9yIGV2ZXJ5IG5hbWVzcGFjZSBvbiB0aGlzIGNv bnRyb2xsZXIuCj4+PiArICovCj4+PiArc3RhdGljIHZvaWQgbnZtZXRfc2V0dXBfcDJwbWVtKHN0 cnVjdCBudm1ldF9jdHJsICpjdHJsLCBzdHJ1Y3QgbnZtZXRfcmVxICpyZXEpCj4+PiArewo+Pj4g KwlzdHJ1Y3QgbnZtZXRfbnMgKm5zOwo+Pj4gKwlpbnQgcmV0Owo+Pj4gKwo+Pj4gKwlpZiAoIXJl cS0+cG9ydC0+dXNlX3AycG1lbSB8fCAhcmVxLT5wMnBfY2xpZW50KQo+Pj4gKwkJcmV0dXJuOwo+ Pgo+PiBOaXQsIElNTyB3b3VsZCBiZSBiZXR0ZXIgdG8gY2hlY2sgYXQgdGhlIGNhbGwtc2l0ZSwg YnV0IG5vdCBhIGhhcmQKPj4gbXVzdC4uLgo+IAo+IEknZCByYXRoZXIga2VlcCB0aGUgbG9naWMg Zm9yIHdoZXRoZXIgdG8gZW5hYmxlIHAycG1lbSBpbiBpdCdzIG93bgo+IGZ1bmN0aW9uLiBudm1l X2FsbG9jX2N0cmwoKSBpcyBhbHJlYWR5IHZlcnkgbG9uZyBhbmQgY29tcGxpY2F0ZWQuCgpGYWly IGVub3VnaC4uCgo+PiBJIHN0aWxsIGRvIG5vdCBmdWxseSB1bmRlcnN0YW5kIHdoeSBwMnBfZGV2 IGhhcyB0byBiZSBjdHJsLXdpZGUgYW5kIG5vdAo+PiBwZXIgbmFtZXNwYWNlLiBTb3JyeSB0byBr ZWVwIGJyaW5naW5nIHRoaXMgdXAgKGFnYWluKS4gQnV0IGlmIHBlb3BsZSBhcmUKPj4gT0sgd2l0 aCBpdCB0aGVuIEkgZ3Vlc3MgSSBjYW4gc3RvcCBhc2tpbmcgYWJvdXQgdGhpcy4uLgo+IAo+IEJl Y2F1c2UgeW91IG5ldmVyIGFuc3dlcmVkIG15IHF1ZXN0aW9uIGJhY2sgaW4gTWFyY2hbMV0gKHdo aWNoIEkgdGhpbmsKPiB5b3UndmUgYW5zd2VyZWQgYmVsb3cpLi4uLgoKSSdtIHNvcnJ5Li4uIEkg bG9zdCB0cmFja2luZyBvbiB0aGlzLi4uCgo+PiBJIHRoaW5rIHRoYXQgYXQgc29tZSBwb2ludCB3 ZSBzYWlkIHRoYXQgdGhpcyBsb29rcyBsaWtlIGl0IHNob3VsZCBmYWxsCj4+IGJhY2sgdG8gaG9z dCBtZW1vcnkgZm9yIHRob3NlIG5hbWVzcGFjZXMuLiB3aGVuIHdlIGFsbG9jYXRlIHRoZSBzZ2wg d2UKPj4gYWxyZWFkeSBhc3NpZ25lZCBhIG5hbWVzcGFjZSB0byB0aGUgcmVxdWVzdCAobnZtZXRf cmVxX2luaXQpLgo+IAo+IEkgZGlkIG5vdCByZWFsaXplIHRoZSBuYW1lc3BhY2Ugd291bGQgYmUg YXZhaWxhYmxlIGF0IHRoaXMgdGltZS4gSSBndWVzcwo+IEkgY2FuIGdpdmUgdGhpcyBhIHRyeSwg YnV0IGl0J3MgZ29pbmcgdG8gYmUgYSBmYWlybHkgYmlnIGNoYW5nZSBmcm9tCj4gd2hhdCdzIHBy ZXNlbnRlZCBoZXJlLi4uIFRob3VnaCwgSSBhZ3JlZSBpdCdsbCBwcm9iYWJseSBiZSBhbiBpbXBy b3ZlbWVudC4KClRoYW5rcywgaWYgaXQgdHVybnMgb3V0IHRvIGNyZWF0ZSB0byBtdWNoIG9mIGEg Y2h1cm4sIHdlIGNvdWxkIGRlZmVyCnRoYXQgdG8gYSBsYXRlciBzdGFnZSwgYnV0IHdlIGNhbiBh dCBsZWFzdCBkb2N1bWVudCBpdC4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KTGludXgtbnZkaW1tIG1haWxpbmcgbGlzdApMaW51eC1udmRpbW1AbGlzdHMu MDEub3JnCmh0dHBzOi8vbGlzdHMuMDEub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZkaW1t Cg==