From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Laight Subject: RE: [RFC PATCH 0/3] kernel: add support for 256-bit IO access Date: Thu, 22 Mar 2018 10:35:43 +0000 Message-ID: <2f5cb27711e741fba77846574e72eb62@AcuMS.aculab.com> References: <7f0ddb3678814c7bab180714437795e0@AcuMS.aculab.com> <7f8d811e79284a78a763f4852984eb3f@AcuMS.aculab.com> <20180320082651.jmxvvii2xvmpyr2s@gmail.com> <20180321074634.dzpyjz3ia46snodh@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: Thomas Gleixner , Rahul Lakkireddy , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "mingo@redhat.com" , "hpa@zytor.com" , "davem@davemloft.net" , "akpm@linux-foundation.org" , "ganeshgr@chelsio.com" , "nirranjan@chelsio.com" , "indranil@chelsio.com" , Andy Lutomirski , Peter Zijlstra , Fenghua Yu , Eric Biggers To: 'Linus Torvalds' , Ingo Molnar Return-path: In-Reply-To: Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org RnJvbTogU2VudDogMjEgTWFyY2ggMjAxOCAxODoxNg0KPiBUbzogSW5nbyBNb2xuYXINCi4uLg0K PiBBbGwgdGhpcyB0byBkbyBhIDMyLWJ5dGUgUElPIGFjY2Vzcywgd2l0aCBhYnNvbHV0ZWx5IHpl cm8gZGF0YSByaWdodA0KPiBub3cgb24gd2hhdCB0aGUgd2luIGlzPw0KPiANCj4gWWVzLCB5ZXMs IEkgY2FuIGZpbmQgYW4gSW50ZWwgd2hpdGUtcGFwZXIgdGhhdCB0YWxrcyBhYm91dCBzZXR0aW5n IFdDDQo+IGFuZCB0aGVuIHVzaW5nIHhtbSBhbmQgeW1tIGluc3RydWN0aW9ucyB0byB3cml0ZSBh IHNpbmdsZSA2NC1ieXRlDQo+IGJ1cnN0IG92ZXIgUENJZSwgYW5kIEkgYXNzdW1lIHRoYXQgaXMg d2hlcmUgdGhlIGNvZGUgYW5kIGlkZWEgY2FtZQ0KPiBmcm9tLiBCdXQgSSBkb24ndCBhY3R1YWxs eSBzZWUgYW55IHJlYXNvbiB3aHkgYSBidXJzdCBvZiA4IHJlZ3VsYXINCj4gcXVhZC13b3JkIGJ5 dGVzIHdvdWxkbid0IGNhdXNlIGEgNjQtYnl0ZSBidXJzdCB3cml0ZSB0b28uDQoNClRoZSBiaWcg Z2FpbiBpcyBmcm9tIHdpZGUgUENJZSByZWFkcywgbm90IHdyaXRlcy4NCldyaXRlcyB0byB1bmNh Y2hlZCBsb2NhdGlvbnMgKHdpdGhvdXQgV0MpIGFyZSBhbG1vc3QgY2VydGFpbmx5IHJlcXVpcmVk DQp0byBnZW5lcmF0ZSB0aGUgJ29idmlvdXMnIFBDSWUgVExQLCBvdGhlcndpc2UgdGhpbmdzIGFy ZSBsaWtlbHkgdG8gYnJlYWsuDQoNCj4gU28gcmlnaHQgbm93IHRoaXMgaXMgZm9yIF9vbmVfIG9k ZCByZG1hIGNvbnRyb2xsZXIsIHdpdGggYWJzb2x1dGVseQ0KPiBfemVyb18gcGVyZm9ybWFuY2Ug bnVtYmVycywgYW5kIGEgdmVyeSBoaWdoIGxpa2VsaWhvb2QgdGhhdCBpdCBkb2VzDQo+IG5vdCBt YXR0ZXIgaW4gdGhlIGxlYXN0Lg0KPiANCj4gQW5kIGlmIHRoZXJlIGFyZSBzb21lIGF0b21pY2l0 eSBjb25jZXJucyAoIndlIG5lZWQgdG8gZ3VhcmFudGVlIGENCj4gc2luZ2xlIGF0b21pYyBhY2Nl c3MgZm9yIHJhY2UgY29uZGl0aW9ucyB3aXRoIHRoZSBoYXJkd2FyZSIpLCB0aGV5IGFyZQ0KPiBw cm9iYWJseSBib2d1cyBhbmQgbWlzcGxhY2VkIGFueXdheSwgc2luY2UNCj4gDQo+ICAoYSkgd2Ug Y2FuJ3QgZ3VhcmFudGVlIHRoYXQgQVZYMiBleGlzdHMgaW4gdGhlIGZpcnN0IHBsYWNlDQoNCkFu eSBjb2RlIHdvdWxkIG5lZWQgdG8gYmUgaW4gbWVtY3B5X2Zyb21pbygpLCBub3QgaW4gZXZlcnkg ZHJpdmVyIHRoYXQNCm1pZ2h0IGJlbmVmaXQuDQpUaGVuIGZhbGxiYWNrIGNvZGUgY2FuIGJlIHVz ZWQgaWYgdGhlIHJlZ2lzdGVycyBhcmVuJ3QgYXZhaWxhYmxlLg0KDQo+ICAoYikgd2UgY2FuJ3Qg Z3VhcmFudGVlIHRoYXQgJXltbSByZWdpc3RlciB3cml0ZSB3aWxsIHNob3cgdXAgb24gYW55DQo+ IGJ1cyBhcyBhIHNpbmdsZSB3cml0ZSB0cmFuc2FjdGlvbiBhbnl3YXkNCg0KTWlzYWxpZ25lZCA4 IGJ5dGUgYWNjZXNzZXMgZ2VuZXJhdGUgYSBzaW5nbGUgUENJZSBUTFAuDQpJIGNhbiBsb29rIGF0 IHdoYXQgaGFwcGVucyBmb3IgQVZYMiB0cmFuc2ZlcnMgbGF0ZXIuDQpJJ3ZlIGdvdCBjb2RlIHRo YXQgbW1hcCgpcyBQQ0llIGFkZHJlc3NlcyBpbnRvIHVzZXIgc3BhY2UsIGFuZCBjYW4NCmxvb2sg YXQgdGhlIFRMUCAoaW5kaXJlY3RseSB0aHJvdWdoIHRyYWNpbmcgb24gYW4gZnBnYSB0YXJnZXQp Lg0KSnVzdCBuZWVkIHRvIHNldCBzb21ldGhpbmcgdXAgdGhhdCB1c2VzIEFWWCBjb3BpZXMuDQoN Cj4gU28gYXMgZmFyIGFzIEkgY2FuIHRlbGwsIHRoZXJlIGFyZSBiYXNpY2FsbHkgKnplcm8qIHVw c2lkZXMsIGFuZCBhIGxvdA0KPiBvZiBwb3RlbnRpYWwgZG93bnNpZGVzLg0KDQpUaGVyZSBhcmUg c29tZSB1cHNpZGVzLg0KSSdsbCBkbyBhIHBlcmZvcm1hbmNlIG1lYXN1cmVtZW50IGZvciByZWFk cy4NCg0KCURhdmlkDQoNCg==