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Thu, 16 Jan 2020 15:53:32 -0800 (PST) Subject: Re: [PATCH 02/15] nvme: Enforce extended LBA format for fabrics metadata To: Max Gurtovoy , linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com References: <20200106133736.123038-1-maxg@mellanox.com> <20200106133736.123038-4-maxg@mellanox.com> From: James Smart Message-ID: <57aa8b5c-b8c9-7617-bc11-b6797587fdc8@broadcom.com> Date: Thu, 16 Jan 2020 15:53:28 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <20200106133736.123038-4-maxg@mellanox.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200116_155335_076986_FA05A1A5 X-CRM114-Status: GOOD ( 19.25 ) 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 CgpPbiAxLzYvMjAyMCA1OjM3IEFNLCBNYXggR3VydG92b3kgd3JvdGU6Cj4gQW4gZXh0ZW5kZWQg TEJBIGlzIGEgbGFyZ2VyIExCQSB0aGF0IGlzIGNyZWF0ZWQgd2hlbiBtZXRhZGF0YSBhc3NvY2lh dGVkCj4gd2l0aCB0aGUgTEJBIGlzIHRyYW5zZmVycmVkIGNvbnRpZ3VvdXNseSB3aXRoIHRoZSBM QkEgZGF0YSAoQUtBCj4gaW50ZXJsZWF2ZWQpLiBUaGUgbWV0YWRhdGEgbWF5IGJlIGVpdGhlciB0 cmFuc2ZlcnJlZCBhcyBwYXJ0IG9mIHRoZSBMQkEKPiAoY3JlYXRpbmcgYW4gZXh0ZW5kZWQgTEJB KSBvciBpdCBtYXkgYmUgdHJhbnNmZXJyZWQgYXMgYSBzZXBhcmF0ZQo+IGNvbnRpZ3VvdXMgYnVm ZmVyIG9mIGRhdGEuIEFjY29yZGluZyB0byB0aGUgTlZNZW9GIHNwZWMsIGEgZmFicmljcyBjdHJs Cj4gc3VwcG9ydHMgb25seSBhbiBFeHRlbmRlZCBMQkEgZm9ybWF0LiBGYWlsIHJldmFsaWRhdGlv biBpbiBjYXNlIHdlIGhhdmUgYQo+IHNwZWMgdmlvbGF0aW9uLiBBbHNvIGluaXRpYWxpemUgdGhl IGludGVncml0eSBwcm9maWxlIGZvciB0aGUgYmxvY2sgZGV2aWNlCj4gZm9yIGZhYnJpY3MgY3Ry bC4KPgo+IFNpZ25lZC1vZmYtYnk6IE1heCBHdXJ0b3ZveSA8bWF4Z0BtZWxsYW5veC5jb20+Cj4g U2lnbmVkLW9mZi1ieTogSXNyYWVsIFJ1a3NoaW4gPGlzcmFlbHJAbWVsbGFub3guY29tPgo+IC0t LQo+ICAgZHJpdmVycy9udm1lL2hvc3QvY29yZS5jIHwgMjUgKysrKysrKysrKysrKysrKysrKysr LS0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDIxIGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0p Cj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9udm1lL2hvc3QvY29yZS5jIGIvZHJpdmVycy9udm1l L2hvc3QvY29yZS5jCj4gaW5kZXggZDk4ZWI0OC4uMDg5Y2RjM2MgMTAwNjQ0Cj4gLS0tIGEvZHJp dmVycy9udm1lL2hvc3QvY29yZS5jCj4gKysrIGIvZHJpdmVycy9udm1lL2hvc3QvY29yZS5jCj4g QEAgLTE4MTgsNyArMTgxOCw3IEBAIHN0YXRpYyB2b2lkIG52bWVfdXBkYXRlX2Rpc2tfaW5mbyhz dHJ1Y3QgZ2VuZGlzayAqZGlzaywKPiAgIAlibGtfbXFfdW5mcmVlemVfcXVldWUoZGlzay0+cXVl dWUpOwo+ICAgfQo+ICAgCj4gLXN0YXRpYyB2b2lkIF9fbnZtZV9yZXZhbGlkYXRlX2Rpc2soc3Ry dWN0IGdlbmRpc2sgKmRpc2ssIHN0cnVjdCBudm1lX2lkX25zICppZCkKPiArc3RhdGljIGludCBf X252bWVfcmV2YWxpZGF0ZV9kaXNrKHN0cnVjdCBnZW5kaXNrICpkaXNrLCBzdHJ1Y3QgbnZtZV9p ZF9ucyAqaWQpCj4gICB7Cj4gICAJc3RydWN0IG52bWVfbnMgKm5zID0gZGlzay0+cHJpdmF0ZV9k YXRhOwo+ICAgCj4gQEAgLTE4NDYsMTEgKzE4NDYsMjEgQEAgc3RhdGljIHZvaWQgX19udm1lX3Jl dmFsaWRhdGVfZGlzayhzdHJ1Y3QgZ2VuZGlzayAqZGlzaywgc3RydWN0IG52bWVfaWRfbnMgKmlk KQo+ICAgCQkJbnMtPmZlYXR1cmVzIHw9IE5WTUVfTlNfRVhUX0xCQVM7Cj4gICAKPiAgIAkJLyoK PiArCQkgKiBGb3IgRmFicmljcywgb25seSBtZXRhZGF0YSBhcyBwYXJ0IG9mIGV4dGVuZGVkIGRh dGEgTEJBIGlzCj4gKwkJICogc3VwcG9ydGVkLiBGYWlsIGluIGNhc2Ugb2YgYSBzcGVjIHZpb2xh dGlvbi4KPiArCQkgKi8KPiArCQlpZiAobnMtPmN0cmwtPm9wcy0+ZmxhZ3MgJiBOVk1FX0ZfRkFC UklDUykgewo+ICsJCQlpZiAoV0FSTl9PTl9PTkNFKCEobnMtPmZlYXR1cmVzICYgTlZNRV9OU19F WFRfTEJBUykpKQo+ICsJCQkJcmV0dXJuIC1FSU5WQUw7Cj4gKwkJfQo+ICsKPiArCQkvKgo+ICAg CQkgKiBGb3IgUENJLCBFeHRlbmRlZCBsb2dpY2FsIGJsb2NrIHdpbGwgYmUgZ2VuZXJhdGVkIGJ5 IHRoZQo+ICAgCQkgKiBjb250cm9sbGVyLgo+ICAgCQkgKi8KPiAgIAkJaWYgKG5zLT5jdHJsLT5v cHMtPmZsYWdzICYgTlZNRV9GX01FVEFEQVRBX1NVUFBPUlRFRCkgewo+IC0JCQlpZiAoIShucy0+ ZmVhdHVyZXMgJiBOVk1FX05TX0VYVF9MQkFTKSkKPiArCQkJaWYgKG5zLT5jdHJsLT5vcHMtPmZs YWdzICYgTlZNRV9GX0ZBQlJJQ1MgfHwKPiArCQkJICAgICEobnMtPmZlYXR1cmVzICYgTlZNRV9O U19FWFRfTEJBUykpCj4gICAJCQkJbnMtPmZlYXR1cmVzIHw9IE5WTUVfTlNfRElYX1NVUFBPUlRF RDsKClRoaXMgbGFzdCBjaGFuZ2Ugc2VlbXMgb2RkIC0gd2h5IGlzIERJWCBzZXQgaWYgTlZNRV9G X0ZBQlJJQ1MgPwoKUGVyIHBhdGNoIGRlc2NyaXB0aW9uIGFib3ZlLCBGYWJyaWNzIHNwZWMgcmVx dWlyZXMgbWV0YWRhdGEgYXMgYW4gCmV4dGVuZGVkIExCQSwgdGh1cyBpdCBkb2Vzbid0IHN1cHBv cnQgRElYLgoKV2hpY2ggaXMgdG91Y2hlcyBvbiBhIGxvdCBvZiBvZGQgdGhpbmdzIHdpdGggdGhl IG52bWUgc3BlYyBhcyBpdCdzIApjZXJ0YWlubHkgcG9zc2libGUgZm9yLCB3aXRoaW4gdGhlIG9z IGhvc3QgaW1wbGVtZW50YXRpb24sIHRvIGhhdmUgdGhlIApob3N0IHRyYW5zbWl0dGluZyBlbmdp bmUgdG8gY29udmVydCBhbiBPUyBzZXBhcmF0ZSBESUYgYnVmIHRvIGFuIApleHRlbmRlZCBsYmEg dHJhbnNtaXNzaW9uIG9uIHRoZSB3aXJlIGFuZCBhcyBwcmVzZW50ZWQgdG8gdGhlIApjb250cm9s bGVyLsKgIFRyYW5zcG9ydHMgY2FuIGNlcnRhaW5seSBoZWxwIG1ha2UgdGhpcyBoYXBwZW4gLSBh bmQgYWRkIAplZ3Jlc3MgY2hlY2tpbmcgYXMgdGhlIGRhdGEgbGVhdmVzIHRoZSBob3N0LsKgwqDC oCBXaGljaCBtZWFucyAtIEknbSBub3QgCnN1cmUgdGhpcyBoYXJkIERJWCBkZWZpbml0aW9uIGJl aW5nIGltcGxlbWVudGVkIHRoaXMgd2F5IGlzIHRoZSB3YXkgdG8gZ28uCgotLSBqYW1lcwoKCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1udm1l IG1haWxpbmcgbGlzdApsaW51eC1udm1lQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3Rz LmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udm1lCg==