linux-kernel - [PATCH RFC 2/3] nvme: store cqt value into nvme ctrl object

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Message-Id: <20250324-tp4129-v1-2-95a747b4c33b@kernel.org>
Date: Mon, 24 Mar 2025 13:07:57 +0100
From: Daniel Wagner <wagi@...nel.org>
To: Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>, 
 Keith Busch <kbusch@...nel.org>, Hannes Reinecke <hare@...e.de>, 
 John Meneghini <jmeneghi@...hat.com>, randyj@...estorage.com, 
 Mohamed Khalfella <mkhalfella@...estorage.com>
Cc: linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Daniel Wagner <wagi@...nel.org>
Subject: [PATCH RFC 2/3] nvme: store cqt value into nvme ctrl object

Signed-off-by: Daniel Wagner <wagi@...nel.org>
---
 drivers/nvme/host/core.c | 1 +
 drivers/nvme/host/nvme.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 40046770f1bf0b98261d8b80e21aa0cc04ebb7a0..135045528ea1c79eac0d6d47d5f7f05a7c98acc4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3380,6 +3380,7 @@ static int nvme_init_identify(struct nvme_ctrl *ctrl)
 	ctrl->kas = le16_to_cpu(id->kas);
 	ctrl->max_namespaces = le32_to_cpu(id->mnan);
 	ctrl->ctratt = le32_to_cpu(id->ctratt);
+	ctrl->cqt = le16_to_cpu(id->cqt);
 
 	ctrl->cntrltype = id->cntrltype;
 	ctrl->dctype = id->dctype;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 7be92d07430e950c3faa764514daf3808009e223..7563332b5b7b76fc6165ec8c6f2d144737d4fe85 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -344,6 +344,7 @@ struct nvme_ctrl {
 	u32 oaes;
 	u32 aen_result;
 	u32 ctratt;
+	u16 cqt;
 	unsigned int shutdown_timeout;
 	unsigned int kato;
 	bool subsystem;

-- 
2.48.1