From patchwork Fri Dec 20 03:54:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 13916108 X-Patchwork-Delegate: kw@linux.com Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E498B2594B5 for ; Fri, 20 Dec 2024 03:54:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734666862; cv=none; b=DSU1G1aly3j8In3DbM+OX4zivbV7sW9G3e6+thLVviQ0K9fSB+OCy6fOihUuYUEGBIdBfXsNTVfR9SajUh30QQFXNc+qRvpMLRumZxLi5HMB2ztGXWN0IPNWB5Tb1xHzrqJIQGccoddST/EzxBVRfBrOHp7hVyF/2s5Kde1nwl4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734666862; c=relaxed/simple; bh=N/B1pRo6hOVQWHt3ZbjWuweqtwlmHGsn/bfBCzS3Z8w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dzJ5lt0u7BUDX67fCC75TgJhp5qqbEoy0s5pAFnpJhKIiCdreCRi9yEpwYxZENz2rkZ2BFIbTklJXfH1LfwdtaNFaoq+zROs+qX91acubERe8fblb1BBVc98AhgZ+pG3nwkQyjXyJ+bUwZLrGeBdaDBOu91FgyIQNr3mLRxss1k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gh2sTzL5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gh2sTzL5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E7FEC4CEDD; Fri, 20 Dec 2024 03:54:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734666861; bh=N/B1pRo6hOVQWHt3ZbjWuweqtwlmHGsn/bfBCzS3Z8w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gh2sTzL5v0aToEI/hgmzJg2qNz0+mT1o+6LvKEqSsNm0lnvxmmu5+0WBzeiMngBam 8YhOzsFR39z6ZB8dg43ObAS9kV4Qp1CLCTqM92/r493fRVzrzbzsEjwTrigBxfQBHe rHn+MRQvcqlWRIhyrzTM+wqVAqDeMpQ1wqEmt1Hkyv0xIQuqPT5sli3dtYpxlh3HiH p1Sw4VCLSzIz8FogZyUBPG164HsTzRgkqmnRVJVBaGM9+AiMMApY/uOg4v0vgujfgm k7GUzejtDZBlpOUkE1Xev999FfGXA12vxj85lhXTXmXBiYs4yF8BcRAADqb1cLOS3j UxYjE6YoJiVzQ== From: Damien Le Moal To: linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch , Sagi Grimberg , linux-pci@vger.kernel.org, Manivannan Sadhasivam , =?utf-8?q?Krzyszt?= =?utf-8?q?of_Wilczy=C5=84ski?= , Kishon Vijay Abraham I , Bjorn Helgaas , Lorenzo Pieralisi Cc: Rick Wertenbroek , Niklas Cassel Subject: [PATCH v6 02/18] nvmet: Add vendor_id and subsys_vendor_id subsystem attributes Date: Fri, 20 Dec 2024 12:54:25 +0900 Message-ID: <20241220035441.600193-3-dlemoal@kernel.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241220035441.600193-1-dlemoal@kernel.org> References: <20241220035441.600193-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Define the new vendor_id and subsys_vendor_id configfs attribute for target subsystems. These attributes are respectively reported as the vid field and as the ssvid field of the identify controller data of a target controllers using the subsystem for which these attributes are set. Signed-off-by: Damien Le Moal Reviewed-by: Christoph Hellwig Tested-by: Rick Wertenbroek --- drivers/nvme/target/admin-cmd.c | 5 ++-- drivers/nvme/target/configfs.c | 45 +++++++++++++++++++++++++++++++++ drivers/nvme/target/nvmet.h | 2 ++ 3 files changed, 49 insertions(+), 3 deletions(-) diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 2962794ce881..b73f5fde4d9e 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -522,9 +522,8 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) goto out; } - /* XXX: figure out how to assign real vendors IDs. */ - id->vid = 0; - id->ssvid = 0; + id->vid = cpu_to_le16(subsys->vendor_id); + id->ssvid = cpu_to_le16(subsys->subsys_vendor_id); memcpy(id->sn, ctrl->subsys->serial, NVMET_SN_MAX_SIZE); memcpy_and_pad(id->mn, sizeof(id->mn), subsys->model_number, diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c index eeee9e9b854c..4b2b8e7d96f5 100644 --- a/drivers/nvme/target/configfs.c +++ b/drivers/nvme/target/configfs.c @@ -1412,6 +1412,49 @@ static ssize_t nvmet_subsys_attr_cntlid_max_store(struct config_item *item, } CONFIGFS_ATTR(nvmet_subsys_, attr_cntlid_max); +static ssize_t nvmet_subsys_attr_vendor_id_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "0x%x\n", to_subsys(item)->vendor_id); +} + +static ssize_t nvmet_subsys_attr_vendor_id_store(struct config_item *item, + const char *page, size_t count) +{ + u16 vid; + + if (kstrtou16(page, 0, &vid)) + return -EINVAL; + + down_write(&nvmet_config_sem); + to_subsys(item)->vendor_id = vid; + up_write(&nvmet_config_sem); + return count; +} +CONFIGFS_ATTR(nvmet_subsys_, attr_vendor_id); + +static ssize_t nvmet_subsys_attr_subsys_vendor_id_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "0x%x\n", + to_subsys(item)->subsys_vendor_id); +} + +static ssize_t nvmet_subsys_attr_subsys_vendor_id_store(struct config_item *item, + const char *page, size_t count) +{ + u16 ssvid; + + if (kstrtou16(page, 0, &ssvid)) + return -EINVAL; + + down_write(&nvmet_config_sem); + to_subsys(item)->subsys_vendor_id = ssvid; + up_write(&nvmet_config_sem); + return count; +} +CONFIGFS_ATTR(nvmet_subsys_, attr_subsys_vendor_id); + static ssize_t nvmet_subsys_attr_model_show(struct config_item *item, char *page) { @@ -1640,6 +1683,8 @@ static struct configfs_attribute *nvmet_subsys_attrs[] = { &nvmet_subsys_attr_attr_serial, &nvmet_subsys_attr_attr_cntlid_min, &nvmet_subsys_attr_attr_cntlid_max, + &nvmet_subsys_attr_attr_vendor_id, + &nvmet_subsys_attr_attr_subsys_vendor_id, &nvmet_subsys_attr_attr_model, &nvmet_subsys_attr_attr_qid_max, &nvmet_subsys_attr_attr_ieee_oui, diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 58328b35dc96..e4a31a37c14b 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -324,6 +324,8 @@ struct nvmet_subsys { struct config_group namespaces_group; struct config_group allowed_hosts_group; + u16 vendor_id; + u16 subsys_vendor_id; char *model_number; u32 ieee_oui; char *firmware_rev;