From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: "Stephen Bates" To: Jerome Glisse , Logan Gunthorpe CC: Alex Williamson , =?utf-8?B?Q2hyaXN0aWFuIEvDtm5pZw==?= , "Bjorn Helgaas" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-rdma@vger.kernel.org" , "linux-nvdimm@lists.01.org" , "linux-block@vger.kernel.org" , Christoph Hellwig , Jens Axboe , Keith Busch , Sagi Grimberg , Bjorn Helgaas , Jason Gunthorpe , Max Gurtovoy , Dan Williams , Benjamin Herrenschmidt Subject: Re: [PATCH v4 04/14] PCI/P2PDMA: Clear ACS P2P flags for all devices behind switches Date: Tue, 8 May 2018 21:35:08 +0000 Message-ID: References: <20180423233046.21476-5-logang@deltatee.com> <20180507231306.GG161390@bhelgaas-glaptop.roam.corp.google.com> <0b4183ef-e720-204b-9e85-b9eaf7a4136a@deltatee.com> <3584a6ac-95c7-5d23-1859-aee30605776e@deltatee.com> <20180508133407.57a46902@w520.home> <5fc9b1c1-9208-06cc-0ec5-1f54c2520494@deltatee.com> <20180508141331.7cd737cb@w520.home> <20180508205005.GC15608@redhat.com> In-Reply-To: <20180508205005.GC15608@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: SGkgSmVyb21lDQoNCj4gICAgSSB0aGluayB0aGVyZSBpcyBjb25mdXNpb24gaGVyZSwgQWxleCBw cm9wZXJseSBleHBsYWluZWQgdGhlIHNjaGVtZQ0KPiAgIFBDSUUtZGV2aWNlIGRvIGEgQVRTIHJl cXVlc3QgdG8gdGhlIElPTU1VIHdoaWNoIHJldHVybnMgYSB2YWxpZA0KPiAgICB0cmFuc2xhdGlv biBmb3IgYSB2aXJ0dWFsIGFkZHJlc3MuIERldmljZSBjYW4gdGhlbiB1c2UgdGhhdCBhZGRyZXNz DQo+ICAgIGRpcmVjdGx5IHdpdGhvdXQgZ29pbmcgdGhyb3VnaCBJT01NVSBmb3IgdHJhbnNsYXRp b24uDQoNClRoaXMgbWFrZXMgc2Vuc2UgYW5kIHRvIGJlIGhvbmVzdCBJIG5vdyB1bmRlcnN0YW5k IEFUUyBhbmQgaXRzIGludGVyYWN0aW9uIHdpdGggQUNTIGEgbG90IGJldHRlciB0aGFuIEkgZGlk IDI0IGhvdXJzIGFnbyA7LSkuDQoNCj4gICAgQVRTIGlzIGltcGxlbWVudGVkIGJ5IHRoZSBJT01N VSBub3QgYnkgdGhlIGRldmljZSAod2VsbCBkZXZpY2UgaW1wbGVtZW50DQo+ICAgIHRoZSBjbGll bnQgc2lkZSBvZiBpdCkuIEFsc28gQVRTIGlzIG1lYW5pbmdsZXNzIHdpdGhvdXQgc29tZXRoaW5n IGxpa2UNCj4gICAgUEFTSUQgYXMgZmFyIGFzIGkga25vdy4NCiAgICANCkkgdGhpbmsgaXQncyB0 aGUgY2xpZW50IHNpZGUgdGhhdCBpcyB3aGF0IGlzIGltcG9ydGFudCB0byB1cy4gTm90IG1hbnkg RVBzIHN1cHBvcnQgQVRTIHRvZGF5IGFuZCBpdCdzIG5vdCBjbGVhciBpZiBtYW55IHdpbGwgaW4g dGhlIGZ1dHVyZS4gIFNvIGFzc3VtaW5nIHdlIHdhbnQgdG8gZG8gcDJwZG1hIGJldHdlZW4gZGV2 aWNlcyAoc29tZSBvZikgd2hpY2ggZG8gTk9UIHN1cHBvcnQgQVRTIGhvdyBiZXN0IGRvIHdlIGhh bmRsZSB0aGUgQUNTIGlzc3VlPyBEaXNhYmxpbmcgdGhlIElPTU1VIHNlZW1zIGEgYml0IHN0cm9u ZyB0byBtZSBnaXZlbiB0aGlzIGltcGFjdHMgYWxsIHRoZSBQQ0kgZG9tYWlucyBpbiB0aGUgc3lz dGVtIGFuZCBub3QganVzdCB0aGUgZG9tYWluIHdlIHdpc2ggdG8gZG8gUDJQIG9uLg0KDQpTdGVw aGVuDQoNCg==