From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [virtio-dev] Re: [PATCH v1] virtio-mmio: Specify wait needed in driver during reset References: <20210726141737-mutt-send-email-mst@kernel.org> <09b74816-8a1e-f993-640f-eb790a4a4698@redhat.com> <20210811100550.GC21582@quicinc.com> <2723b42a-f5d0-9c49-bf5c-302fbd4c947f@redhat.com> <20210816013138-mutt-send-email-mst@kernel.org> <20210816063550.GD5604@quicinc.com> <20210816074558-mutt-send-email-mst@kernel.org> <20210817034312-mutt-send-email-mst@kernel.org> <20210817100333.GA9207@quicinc.com> From: Jason Wang Message-ID: Date: Wed, 18 Aug 2021 10:54:37 +0800 MIME-Version: 1.0 In-Reply-To: <20210817100333.GA9207@quicinc.com> Content-Type: text/plain; charset="gbk"; format="flowed" Content-Transfer-Encoding: base64 Content-Language: en-US To: Srivatsa Vaddagiri , "Michael S. Tsirkin" Cc: Srivatsa Vaddagiri , Cornelia Huck , "virtio-dev@lists.oasis-open.org" , Trilok Soni , Pratik Patel List-ID: CtTaIDIwMjEvOC8xNyDPws7nNjowMywgU3JpdmF0c2EgVmFkZGFnaXJpINC0tcA6Cj4gKiBNaWNo YWVsIFMuIFRzaXJraW4gPG1zdEByZWRoYXQuY29tPiBbMjAyMS0wOC0xNyAwMzo1MTo0N106Cj4K Pj4gU28gYmVmb3JlIHdlIG1vdmUgb24gSSdkIGxpa2UgdG8ga25vdyB3aGV0aGVyIHdlIGRvIHNv bWV0aGluZyBhcyBkcmFzdGljCj4+IGFzIGluY3JlbWVudGluZyB0aGUgdmVyc2lvbiBudW1iZXIg Zm9yIGEgdGhlb3JldGljYWwgb3IgcHJhY3RpY2FsCj4+IGJlbmVmaXQuCj4gV2UgaW5pdGlhbGx5 IHN0dW1ibGVkIG9uIHRoaXMgcmVzZXQgaXNzdWUgd2hlbiBkb2luZyBzb21lIG9wdGltaXphdGlv biBpbgo+IFF1YWxjb21tIFR5cGUtMSBoeXBlcnZpc29yIGZvciB2aXJ0aW8uIEluIG91ciBjYXNl LCB2aXJ0aW8gZnJvbnRlbmQgYW5kIGJhY2tlbmQKPiBkcml2ZXJzIGFyZSBpbiBzZXBhcmF0ZSBW TXMuIFRoZSBBbmRyb2lkIFZNIHRoYXQgaG9zdHMgYmFja2VuZCBkcml2ZXIgaXMKPiBjb25zaWRl cmVkIHVudHJ1c3RlZCwgd2hpY2ggYW1vbmcgb3RoZXIgdGhpbmdzIG1lYW50IGZyb250LWVuZCBj b3VsZCBzZWUgbGFyZ2UKPiBsYXRlbmNpZXMgZm9yIGl0cyBNTUlPIHJlZ2lzdGVyIHIvdyByZXF1 ZXN0cyAobGFyZ2VseSBvd2luZyB0byBzY2hlZHVsaW5nCj4gZGVsYXlzKS4gSW4gc29tZSBjYXNl cywgSSBtZWFzdXJlZCA1LTEwIG1zIGZvciBhIHNpbmdsZSBNTUlPIHJlZ2lzdGVyIHJlYWQgb3IK PiB3cml0ZSByZXF1ZXN0LiBGZXcgb2YgdGhlIHJlZ2lzdGVycyBhcmUgYWNjZXNzZWQgaW4gaG90 LXBhdGggKGxpa2UKPiBWSVJUSU9fTU1JT19RVUVVRV9OT1RJRlkgb3IgVklSVElPX01NSU9fSU5U RVJSVVBUX0FDSykgd2hpY2ggd2Ugd2FudGVkIHRvIGJlIG9mCj4gbG93LWxhdGVuY3kgYXMgbXVj aCBhcyBwb3NzaWJsZS4KPgo+IFRoZSBvcHRpbWl6YXRpb24gd2UgaGF2ZSB0byBoZWxwIHJlZHVj ZSB0aGlzIGxhdGVuY3kgaXMgZm9yIGh5cGVydmlzb3IgdG8KPiBhY2tub3dsZWRnZSBNTUlPIHdy aXRlcyB3aXRob3V0IHdhaXRpbmcgb24gYmFja2VuZCB0byByZXNwb25kLiBGb3IgZXhhbXBsZSwg d2hlbgo+IFZNIHdyaXRlcyB0byBWSVJUSU9fTU1JT19RVUVVRV9OT1RJRlksIGl0IGNhdXNlcyBh IHRyYXAgYW5kIG5vcm1hbGx5IGh5cGVydmlzb3IKPiB3b3VsZCBoYXZlIHJlcXVpcmVkIHRvIHN0 YWxsIHRoZSB2Y3B1IHVudGlsIGJhY2tlbmQgYWNrbm93bGVkZ2VzIGl0LgoKClRoaXMgbG9va3Mg bm90IG5lY2Vzc2FyeS4gUWVtdS9LVk0gYWxsb3dzIGFuIGV2ZW50ZmQgdG8gYmUgaW5zdGFsbGVk IApoZXJlLiBUaGVuIHdlIGNhbiB1bmJsb2NrIHRoZSB2Y3B1IGltbWVkaWF0ZWx5IGFmdGVyIGV2 ZW50IGlzIHNpZ25hbGVkIAphbmQgd2UgZG9uJ3QgbmVlZCB0byB3YWl0IGZvciB0aGUgYWNrbm93 bGVkZ2UuCgoKPiBJbiBvdXIKPiBjYXNlLCBoeXBlcnZpc29yIHdvdWxkIHVuYmxvY2sgdGhlIHZj cHUgaW1tZWRpYXRlbHkgYWZ0ZXIgaW5qZWN0aW5nIGFuIGludGVycnVwdAo+IHRvIGJhY2tlbmQg KHRvIGxldCBiYWNrZW5kIGtub3cgdGhhdCB0aGVyZSBpcyBhIHF1ZXVlX25vdGlmeSBldmVudCku IEhhbmRsaW5nCj4gd3JpdGVzIHRvIFZJUlRJT19NTUlPX0lOVEVSUlVQVF9BQ0sgd2FzIGJpdCB0 cmlja3kgYnV0IHdlIG1hbmFnZWQgdGhhdCB3aXRoIGZldwo+IGNoYW5nZXMgaW4gYmFja2VuZCAo ZXNwZWNpYWxseSBhbnkgYXdhcmVuZXNzIGJhY2tlbmQgaGFkIGFib3V0IGZyb250LWVuZCBiZWlu Zwo+IHN0aWxsIGluIGEgaW50ZXJydXB0IGhhbmRsZXIpLiBTaW1pbGFybHkgb3RoZXIgcmVnaXN0 ZXJzIHRoYXQgYXJlIHdyaXR0ZW4gYXJlCj4gY29tcGxldGVseSBoYW5kbGVkIGluIGh5cGVydmlz b3Igd2l0aG91dCByZXF1aXJpbmcgaW50ZXJ2ZW50aW9uIGZyb20gYmFja2VuZC4KPgo+IEhhbmRs aW5nIHJlc2V0IGlzIHRoZSBvbmx5IG9wZW4gaXNzdWUgd2UgaGF2ZSwgYXMgZ3Vlc3QgdHJpZ2dl cmluZyByZXNldCBoYXMKPiBjdXJyZW50bHkgbm8gcHJvdmlzaW9uIHRvIHBvbGwgZm9yIHJlc2V0 IGNvbXBsZXRpb24gYW5kIGh5cGVydmlzb3IgaXRzZWxmIGNhbm5vdAo+IGhhbmRsZSByZXNldCBj b21wbGV0bHkuIFRoaXMgaXMgd2hlcmUgd2Ugb2JzZXJ2ZWQgZGlzY3JlcGFuY3kgYmV0d2VlbiBQ Q0kgdnMKPiBNTUlPIGluIGhhbmRsaW5nIHJlc2V0LCB3aGljaCB3ZSB3YW50ZWQgdG8gYWRkcmVz cyB3aXRoIHRoaXMgZGlzY3Vzc2lvbi4KCgpJdCBsb29rcyBsaWtlIHdlIG1heSBzdWZmZXIgZnJv bSBzaW1pbGFyIGlzc3VlIGZvciBvdGhlciB1bnRydXN0ZWQgCmRldmljZXMgbGlrZSBWRFVTRS4K Cgo+Cj4gSSB0aGluayB0aGUgb3B0aW9uIHdlIGRpc2N1c3NlZCBlYXJsaWVyIG9mIGEgbmV3IGZl YXR1cmUgYml0IHNlZW1zIGxlc3MKPiBpbnRydXNpdmUgdGhhbiBpbmNyZW1lbnRpbmcgTU1JTyB2 ZXJzaW9uPwo+Cj4gaHR0cHM6Ly9saXN0cy5vYXNpcy1vcGVuLm9yZy9hcmNoaXZlcy92aXJ0aW8t ZGV2LzIwMjEwNy9tc2cwMDE2OC5odG1sCgoKVXNpbmcgZmVhdHVyZXMgd2lsbCByZXN1bHQgc29t ZSBpbnRlcmVzdGluZyBxdWVzdGlvbjoKCjEpIHRoZSBkcml2ZXJzIHVzdWFsbHkgcmVzZXQgdGhl IGRldmljZSBiZWZvcmUgZmVhdHVyZSBuZWdvdGlhdGlvbgoyKSBpdCBtZWFucyB0aGUgZHJpdmVy IG11c3QgbWFuZGF0ZSB0aGlzIGJlaGF2aW9yIGV2ZW4gYmVmb3JlIGZlYXR1cmUgCm5lZ290aWF0 aW9uIGlzIGRvbmUKCldlIGRvbid0IGhhdmUgdGhvc2UgaXNzdWUgaWYgd2UgaW5jcmVhc2UgdGhl IHZlcnNpb24gKGJ1dCBpdCBsb29rcyBtb3JlIAppbnRydXNpdmUpLgoKVGhhbmtzCgoKPgo+IC0g dmF0c2EKPgo+IC0tCj4KPiBRdWFsY29tbSBJbm5vdmF0aW9uIENlbnRlciwgSW5jLiBpcyBzdWJt aXR0aW5nIHRoZSBhdHRhY2hlZCAiZmVlZGJhY2siIGFzIGEKPiBvbi1tZW1iZXIgdG8gdGhlIHZp cnRpby1kZXYgbWFpbGluZyBsaXN0IGZvciBjb25zaWRlcmF0aW9uIGFuZCBpbmNsdXNpb24uCj4K Cg==