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Wed, 4 Nov 2020 15:20:40 +0000 (UTC) Received: from localhost (ovpn-115-145.ams2.redhat.com [10.36.115.145]) by smtp.corp.redhat.com (Postfix) with ESMTP id B2EE65D9CC; Wed, 4 Nov 2020 15:20:36 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, Peter Maydell Cc: kvm@vger.kernel.org, "Dr. David Alan Gilbert" , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , Markus Armbruster , Eric Blake , Fam Zheng , Stefan Hajnoczi , Keith Busch , Max Reitz , qemu-block@nongnu.org, Kevin Wolf , Coiby Xu , Paolo Bonzini , Klaus Jensen , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Eric Auger Subject: [PULL 17/33] block/nvme: Simplify ADMIN queue access Date: Wed, 4 Nov 2020 15:18:12 +0000 Message-Id: <20201104151828.405824-18-stefanha@redhat.com> In-Reply-To: <20201104151828.405824-1-stefanha@redhat.com> References: <20201104151828.405824-1-stefanha@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org RnJvbTogUGhpbGlwcGUgTWF0aGlldS1EYXVkw6kgPHBoaWxtZEByZWRoYXQuY29tPgoKV2UgZG9u J3QgbmVlZCB0byBkZXJlZmVyZW5jZSBmcm9tIEJEUlZOVk1lU3RhdGUgZWFjaCB0aW1lLgpVc2Ug YSBOVk1lUXVldWVQYWlyIHBvaW50ZXIgb24gdGhlIGFkbWluIHF1ZXVlLgpUaGUgbnZtZV9pbml0 KCkgYmVjb21lcyBlYXNpZXIgdG8gcmV2aWV3LCBtYXRjaGluZyB0aGUgc3R5bGUKb2YgbnZtZV9h ZGRfaW9fcXVldWUoKS4KClJldmlld2VkLWJ5OiBFcmljIEF1Z2VyIDxlcmljLmF1Z2VyQHJlZGhh dC5jb20+ClJldmlld2VkLWJ5OiBTdGVmYW4gSGFqbm9jemkgPHN0ZWZhbmhhQHJlZGhhdC5jb20+ ClRlc3RlZC1ieTogRXJpYyBBdWdlciA8ZXJpYy5hdWdlckByZWRoYXQuY29tPgpTaWduZWQtb2Zm LWJ5OiBQaGlsaXBwZSBNYXRoaWV1LURhdWTDqSA8cGhpbG1kQHJlZGhhdC5jb20+Ck1lc3NhZ2Ut aWQ6IDIwMjAxMDI5MDkzMzA2LjEwNjM4NzktMTYtcGhpbG1kQHJlZGhhdC5jb20KU2lnbmVkLW9m Zi1ieTogU3RlZmFuIEhham5vY3ppIDxzdGVmYW5oYUByZWRoYXQuY29tPgpUZXN0ZWQtYnk6IEVy aWMgQXVnZXIgPGVyaWMuYXVnZXJAcmVkaGF0LmNvbT4KLS0tCiBibG9jay9udm1lLmMgfCAxMiAr KysrKystLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25z KC0pCgpkaWZmIC0tZ2l0IGEvYmxvY2svbnZtZS5jIGIvYmxvY2svbnZtZS5jCmluZGV4IDA5MDJh YTU1NDIuLmVlZDEyZjQ5MzMgMTAwNjQ0Ci0tLSBhL2Jsb2NrL252bWUuYworKysgYi9ibG9jay9u dm1lLmMKQEAgLTcwMCw2ICs3MDAsNyBAQCBzdGF0aWMgaW50IG52bWVfaW5pdChCbG9ja0RyaXZl clN0YXRlICpicywgY29uc3QgY2hhciAqZGV2aWNlLCBpbnQgbmFtZXNwYWNlLAogICAgICAgICAg ICAgICAgICAgICAgRXJyb3IgKiplcnJwKQogewogICAgIEJEUlZOVk1lU3RhdGUgKnMgPSBicy0+ b3BhcXVlOworICAgIE5WTWVRdWV1ZVBhaXIgKnE7CiAgICAgQWlvQ29udGV4dCAqYWlvX2NvbnRl eHQgPSBiZHJ2X2dldF9haW9fY29udGV4dChicyk7CiAgICAgaW50IHJldDsKICAgICB1aW50NjRf dCBjYXA7CkBAIC03ODEsMTkgKzc4MiwxOCBAQCBzdGF0aWMgaW50IG52bWVfaW5pdChCbG9ja0Ry aXZlclN0YXRlICpicywgY29uc3QgY2hhciAqZGV2aWNlLCBpbnQgbmFtZXNwYWNlLAogCiAgICAg LyogU2V0IHVwIGFkbWluIHF1ZXVlLiAqLwogICAgIHMtPnF1ZXVlcyA9IGdfbmV3KE5WTWVRdWV1 ZVBhaXIgKiwgMSk7Ci0gICAgcy0+cXVldWVzW0lOREVYX0FETUlOXSA9IG52bWVfY3JlYXRlX3F1 ZXVlX3BhaXIocywgYWlvX2NvbnRleHQsIDAsCi0gICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgTlZNRV9RVUVVRV9TSVpFLAotICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGVycnApOwot ICAgIGlmICghcy0+cXVldWVzW0lOREVYX0FETUlOXSkgeworICAgIHEgPSBudm1lX2NyZWF0ZV9x dWV1ZV9wYWlyKHMsIGFpb19jb250ZXh0LCAwLCBOVk1FX1FVRVVFX1NJWkUsIGVycnApOworICAg IGlmICghcSkgewogICAgICAgICByZXQgPSAtRUlOVkFMOwogICAgICAgICBnb3RvIG91dDsKICAg ICB9CisgICAgcy0+cXVldWVzW0lOREVYX0FETUlOXSA9IHE7CiAgICAgcy0+cXVldWVfY291bnQg PSAxOwogICAgIFFFTVVfQlVJTERfQlVHX09OKChOVk1FX1FVRVVFX1NJWkUgLSAxKSAmIDB4RjAw MCk7CiAgICAgcmVncy0+YXFhID0gY3B1X3RvX2xlMzIoKChOVk1FX1FVRVVFX1NJWkUgLSAxKSA8 PCBBUUFfQUNRU19TSElGVCkgfAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICgoTlZNRV9R VUVVRV9TSVpFIC0gMSkgPDwgQVFBX0FTUVNfU0hJRlQpKTsKLSAgICByZWdzLT5hc3EgPSBjcHVf dG9fbGU2NChzLT5xdWV1ZXNbSU5ERVhfQURNSU5dLT5zcS5pb3ZhKTsKLSAgICByZWdzLT5hY3Eg PSBjcHVfdG9fbGU2NChzLT5xdWV1ZXNbSU5ERVhfQURNSU5dLT5jcS5pb3ZhKTsKKyAgICByZWdz LT5hc3EgPSBjcHVfdG9fbGU2NChxLT5zcS5pb3ZhKTsKKyAgICByZWdzLT5hY3EgPSBjcHVfdG9f bGU2NChxLT5jcS5pb3ZhKTsKIAogICAgIC8qIEFmdGVyIHNldHRpbmcgdXAgYWxsIGNvbnRyb2wg cmVnaXN0ZXJzIHdlIGNhbiBlbmFibGUgZGV2aWNlIG5vdy4gKi8KICAgICByZWdzLT5jYyA9IGNw dV90b19sZTMyKChjdHozMihOVk1FX0NRX0VOVFJZX0JZVEVTKSA8PCBDQ19JT0NRRVNfU0hJRlQp IHwKLS0gCjIuMjguMAoK