From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============6130492473008496515==" MIME-Version: 1.0 From: Walker, Benjamin Subject: Re: [SPDK] hotplug support and testing Date: Tue, 28 Feb 2017 16:35:24 +0000 Message-ID: <1488299722.9792.7.camel@intel.com> In-Reply-To: 21E61B56-16F8-4016-B36A-FB6E5E2D0C74@ocient.com List-ID: To: spdk@lists.01.org --===============6130492473008496515== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Mon, 2017-02-27 at 22:58 +0000, Will Del Genio wrote: > Hello, > =C2=A0 > I=E2=80=99m currently working on testing the hotplug support for local PC= Ie > connected NVMe drives (P3700s and 3600s at the moment) on linux. > (Linux sb1 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC > 2017 x86_64 x86_64 x86_64 GNU/Linux) > =C2=A0 > Right now spdk requires the setup script to be manually run which > unbinds the nvme driver and binds the uio_pci_generic driver.=C2=A0 Is > there a way to have that happen automatically on hotplugging of an > nvme device?=C2=A0 From what I understand it could be done via script > called by a udev rule. You can change which devices the kernel assigns to which drivers by writing to /sys/bus/pci/drivers/.../new_id and /sys/bus/pci/drivers/.../remove_id. See=C2=A0 https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-bus-pci If you change NVMe devices to automatically be bound to uio_pci_generic, then SPDK will pick them up in the next call to spdk_nvme_probe(). > =C2=A0 > Is that the right way to handle it?=C2=A0 Are there any other plans for > hotplug support moving forward I should be aware of? > =C2=A0 > Thanks for the help, > Will Del Genio > _______________________________________________ > SPDK mailing list > SPDK(a)lists.01.org > https://lists.01.org/mailman/listinfo/spdk --===============6130492473008496515== Content-Type: application/x-pkcs7-signature MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKdTCCBOsw ggPToAMCAQICEFLpAsoR6ESdlGU4L6MaMLswDQYJKoZIhvcNAQEFBQAwbzELMAkGA1UEBhMCU0Ux FDASBgNVBAoTC0FkZFRydXN0IEFCMSYwJAYDVQQLEx1BZGRUcnVzdCBFeHRlcm5hbCBUVFAgTmV0 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