From patchwork Wed Apr 15 05:51:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 284331 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 942CEC2BA2B for ; Wed, 15 Apr 2020 06:04:00 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5D64F206E9 for ; Wed, 15 Apr 2020 06:04:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D64F206E9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43658 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOb9T-0004rQ-1a for qemu-devel@archiver.kernel.org; Wed, 15 Apr 2020 02:03:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35238) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOayh-0001tF-Eq for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:52:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jOayf-0002dx-6N for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:52:51 -0400 Received: from charlie.dont.surf ([128.199.63.193]:47306) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jOayb-0002RU-HS; Wed, 15 Apr 2020 01:52:45 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id 5BA6FBFD5C; Wed, 15 Apr 2020 05:52:24 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v7 19/48] nvme: support identify namespace descriptor list Date: Wed, 15 Apr 2020 07:51:11 +0200 Message-Id: <20200415055140.466900-20-its@irrelevant.dk> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200415055140.466900-1-its@irrelevant.dk> References: <20200415055140.466900-1-its@irrelevant.dk> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 128.199.63.193 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Beata Michalska , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen Since we are not providing the NGUID or EUI64 fields, we must support the Namespace UUID. We do not have any way of storing a persistent unique identifier, so conjure up a UUID that is just the namespace id. Signed-off-by: Klaus Jensen --- hw/block/nvme.c | 39 +++++++++++++++++++++++++++++++++++++++ hw/block/trace-events | 1 + 2 files changed, 40 insertions(+) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index d4622278450e..f40bc861facc 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -949,6 +949,43 @@ static uint16_t nvme_identify_nslist(NvmeCtrl *n, NvmeIdentify *c) return ret; } +static uint16_t nvme_identify_ns_descr_list(NvmeCtrl *n, NvmeIdentify *c) +{ + uint32_t nsid = le32_to_cpu(c->nsid); + uint64_t prp1 = le64_to_cpu(c->prp1); + uint64_t prp2 = le64_to_cpu(c->prp2); + + uint8_t list[NVME_IDENTIFY_DATA_SIZE]; + + struct data { + struct { + NvmeIdNsDescr hdr; + uint8_t v[16]; + } uuid; + }; + + struct data *ns_descrs = (struct data *)list; + + trace_nvme_dev_identify_ns_descr_list(nsid); + + if (unlikely(nsid == 0 || nsid > n->num_namespaces)) { + trace_nvme_dev_err_invalid_ns(nsid, n->num_namespaces); + return NVME_INVALID_NSID | NVME_DNR; + } + + /* + * Because the NGUID and EUI64 fields are 0 in the Identify Namespace data + * structure, a Namespace UUID (nidt = 0x3) must be reported in the + * Namespace Identification Descriptor. Add a very basic Namespace UUID + * here. + */ + ns_descrs->uuid.hdr.nidt = NVME_NIDT_UUID; + ns_descrs->uuid.hdr.nidl = NVME_NIDT_UUID_LEN; + stl_be_p(&ns_descrs->uuid.v, nsid); + + return nvme_dma_read_prp(n, list, NVME_IDENTIFY_DATA_SIZE, prp1, prp2); +} + static uint16_t nvme_identify(NvmeCtrl *n, NvmeCmd *cmd) { NvmeIdentify *c = (NvmeIdentify *)cmd; @@ -960,6 +997,8 @@ static uint16_t nvme_identify(NvmeCtrl *n, NvmeCmd *cmd) return nvme_identify_ctrl(n, c); case NVME_ID_CNS_NS_ACTIVE_LIST: return nvme_identify_nslist(n, c); + case NVME_ID_CNS_NS_DESCR_LIST: + return nvme_identify_ns_descr_list(n, c); default: trace_nvme_dev_err_invalid_identify_cns(le32_to_cpu(c->cns)); return NVME_INVALID_FIELD | NVME_DNR; diff --git a/hw/block/trace-events b/hw/block/trace-events index fb5b26f6f5f6..7ecd47131ac2 100644 --- a/hw/block/trace-events +++ b/hw/block/trace-events @@ -45,6 +45,7 @@ nvme_dev_del_cq(uint16_t cqid) "deleted completion queue, cqid=%"PRIu16"" nvme_dev_identify_ctrl(void) "identify controller" nvme_dev_identify_ns(uint32_t ns) "nsid %"PRIu32"" nvme_dev_identify_nslist(uint32_t ns) "nsid %"PRIu32"" +nvme_dev_identify_ns_descr_list(uint32_t ns) "nsid %"PRIu32"" nvme_dev_getfeat(uint16_t cid, uint32_t fid) "cid %"PRIu16" fid 0x%"PRIx32"" nvme_dev_setfeat(uint16_t cid, uint32_t fid, uint32_t val) "cid %"PRIu16" fid 0x%"PRIx32" val 0x%"PRIx32"" nvme_dev_getfeat_vwcache(const char* result) "get feature volatile write cache, result=%s"