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[68.5.146.102]) by smtp.gmail.com with ESMTPSA id d26sm3309103pgv.66.2020.01.23.07.34.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Jan 2020 07:34:18 -0800 (PST) Subject: Re: [PATCH 07/16] nvme-rdma: Add metadata/T10-PI support To: Max Gurtovoy , linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com References: <20191202144812.147686-1-maxg@mellanox.com> <20191202144812.147686-9-maxg@mellanox.com> <522e0efe-5907-b28d-ef90-4ceca0fb3103@broadcom.com> <07d7772c-7ec5-d29f-ae84-c177321145ae@mellanox.com> From: James Smart Message-ID: <095f5943-5a5f-36ca-a8ee-0c8a9a02cc52@broadcom.com> Date: Thu, 23 Jan 2020 07:34:16 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <07d7772c-7ec5-d29f-ae84-c177321145ae@mellanox.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200123_073420_537692_0E2904C2 X-CRM114-Status: GOOD ( 15.61 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: axboe@kernel.dk, vladimirk@mellanox.com, idanb@mellanox.com, israelr@mellanox.com, shlomin@mellanox.com, oren@mellanox.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org CgpPbiAxLzIzLzIwMjAgMTo1OSBBTSwgTWF4IEd1cnRvdm95IHdyb3RlOgo+Cj4gT24gMS8yMi8y MDIwIDExOjU3IFBNLCBKYW1lcyBTbWFydCB3cm90ZToKPj4gT24gYSBwZXItaW8gYmFzaXMsIHRo ZXJlIG5lZWRzIHRvIGJlIHNwZWNpZmljIGRlc2NyaXB0aW9ucyBvZiB0aGUgRElGIAo+PiBpbmZv cm1hdGlvbiB0byBwcm9ncmFtIHRoZSBwb3J0IGhhcmR3YXJlLsKgIFRoaW5ncyBzdWNoIGFzIGJs b2NrIHNpemUsIAo+PiB0eXBlLCBhbmQgc28uIEkgc2VlIHRoaXMgcm91dGluZSB1c2luZyBhIG1p eCBvZiB0aGUgYmlvIHRoYXQgaXMgCj4+IGFzc29jaWF0ZWQgd2l0aCB0aGUgb3JpZ2luYWwgcmVx dWVzdCBhcyB3ZWxsIGFzIHRoZSBuYW1lc3BhY2UgcG9pbnRlciAKPj4gdG8gZ2V0IHRoaXMgaW5m by4gwqDCoCBUbyBtZSB0aGUgcmVhY2hpbmcgaW50byB0aGUgYmlvLCBhcyB3ZWxsIGFzIHRoZSAK Pj4gbG9jYXRpbmcgb2YgdGhlIG5zIHN0cnVjdHVyZXMgYXJlIHJlYWNoaW5nIGludG8gdGhlIG90 aGVyIGxheWVycyB0b28gCj4+IG11Y2guCj4+Cj4+IFdvdWxkbid0IHdlIGJlIGJldHRlciBvZmYg d2l0aCB3aXRoIHRoZSBjb3JlIGxheWVyIGRvaW5nIGFsbCB0aGUgCj4+IHJlYWNoaW5nIGFuZCBz ZXR0aW5nIHVwIGEgcGkgc3RydWN0dXJlIGluIHRoZSBudm1lX3JlcXVlc3Qgd2l0aCB0aGlzIAo+ PiBpbmZvcm1hdGlvbiA/wqDCoCByZXBsYWNlIGhhc19waSB3aXRoIHRoaXMgcGkgc3RydWN0IGFu ZCAKPj4gIm52bWVfcmVxKHJxKS0+cGkucGlfdHlwZSA9PSAwIiBpcyBlcXVpdmFsZW50IHRvIGhh c19waSA/IElmIHdlIAo+PiBkaWRuJ3Qgd2FudCB0byByZXBsaWNhdGUgdGhlIFBJIGluZm8sIHRo ZW4gbnZtZV9yZXF1ZXN0IGNhbiBzaW1wbHkgCj4+IGFkZCBhIHBvaW50ZXIgdG8gdGhlIG5zLCBh bmQgdGhlIG5zIGNhbiBiZSBsb29rZWQgYXQgZXhwbGljaXRseSB0byAKPj4gZ2F0aGVyIHRoZSBh dHRyaWJ1dGVzLgo+Pgo+PiBUaG91Z2h0cyA/Cj4+Cj4gTlZNZSBuYW1lc3BhY2UgaXMgdXNlZCBi eSBSRE1BL1RDUC9GQyB0cmFuc3BvcnQgZHJpdmVycyBpbiBlYWNoIAo+IHF1ZXVlX3JxIGltcGxl bWVudGF0aW9uLiBXZSBjYW4gcGFzcyBpdCBpbnN0ZWFkIG9mIHJlYWNoaW5nIGl0IGZyb20gCj4g dGhlIHJxLCBpZiB0aGlzIGxvb2tzIGJldHRlci4KCj8/IHRoZXJlIGhhc24ndCBiZWVuIGFueSBy ZWFzb24gdG8gbG9vayBhdCB0aGUgbmFtZXNwYWNlIGJ5IHRoZSAKdHJhbnNwb3J0cyB0byBkYXRl LgoKQnV0IHllcywgSSBtdWNoIHByZWZlciBwYXNzaW5nIHRoZSBucyBhbmQgdXNpbmcgaXQgZm9y IHRoZSBkaWYgaW5mby7CoCAKVGhpcyByZW1vdmVzIHdoYXQgSSBkaWRuJ3QgbGlrZSAtIGVuY29k aW5nIHRoZSByZWxhdGlvbnNoaXAgb2YgaG93IHRvIApnZXQgZnJvbSB0aGUgcnEgdG8gbnMgaW4g ZWFjaCB0cmFuc3BvcnQuCgo+Cj4gTlZNZSBQSSBhdHRyaWJ1dGVzIChlLmfCoCByZWZ0YWcvY2hl Y2tfZmxhZ3MvYWN0aW9uX2ZsYWdzKSBhcmUgYWxsIHNldCAKPiBpbiB0aGUgY29yZSBsYXllci4K Cj4KPiBQSSBhdHRyaWJ1dGVzIGZvciBjb25maWd1cmluZyB0aGUgSFcgb2YgZWFjaCB0cmFuc3Bv cnQgc2hvdWxkIGJlIGRvbmUgCj4gaW4gdGhlIHRyYW5zcG9ydCBkcml2ZXIuCj4KCmFncmVlZC4K Ci0tIGphbWVzCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KbGludXgtbnZtZSBtYWlsaW5nIGxpc3QKbGludXgtbnZtZUBsaXN0cy5pbmZyYWRlYWQub3Jn Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZtZQo=