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Fri, 27 Mar 2026 17:45:52 -0700 (PDT) Received: from ceto ([2601:640:8202:6fb0::9c63]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-2b242683064sm5342705ad.33.2026.03.27.17.45.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Mar 2026 17:45:52 -0700 (PDT) From: Mohamed Khalfella To: Justin Tee , Naresh Gottumukkala , Paul Ely , Chaitanya Kulkarni , Jens Axboe , Keith Busch , Sagi Grimberg , James Smart , Hannes Reinecke Cc: Aaron Dailey , Randy Jennings , Dhaval Giani , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, Mohamed Khalfella Subject: [PATCH v4 02/15] nvmet/debugfs: Export controller CIU and CIRN via debugfs Date: Fri, 27 Mar 2026 17:43:33 -0700 Message-ID: <20260328004518.1729186-3-mkhalfella@purestorage.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260328004518.1729186-1-mkhalfella@purestorage.com> References: <20260328004518.1729186-1-mkhalfella@purestorage.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260327_174554_068014_FDF5E90F X-CRM114-Status: GOOD ( 10.41 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Export ctrl->ciu and ctrl->cirn as debugfs files under controller debugfs directory. Signed-off-by: Mohamed Khalfella Reviewed-by: Hannes Reinecke Reviewed-by: Sagi Grimberg --- drivers/nvme/target/debugfs.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/nvme/target/debugfs.c b/drivers/nvme/target/debugfs.c index 5dcbd5aa86e1..1300adf6c1fb 100644 --- a/drivers/nvme/target/debugfs.c +++ b/drivers/nvme/target/debugfs.c @@ -152,6 +152,23 @@ static int nvmet_ctrl_tls_concat_show(struct seq_file *m, void *p) } NVMET_DEBUGFS_ATTR(nvmet_ctrl_tls_concat); #endif +static int nvmet_ctrl_instance_ciu_show(struct seq_file *m, void *p) +{ + struct nvmet_ctrl *ctrl = m->private; + + seq_printf(m, "%02x\n", ctrl->ciu); + return 0; +} +NVMET_DEBUGFS_ATTR(nvmet_ctrl_instance_ciu); + +static int nvmet_ctrl_instance_cirn_show(struct seq_file *m, void *p) +{ + struct nvmet_ctrl *ctrl = m->private; + + seq_printf(m, "%016llx\n", ctrl->cirn); + return 0; +} +NVMET_DEBUGFS_ATTR(nvmet_ctrl_instance_cirn); int nvmet_debugfs_ctrl_setup(struct nvmet_ctrl *ctrl) { @@ -184,6 +201,10 @@ int nvmet_debugfs_ctrl_setup(struct nvmet_ctrl *ctrl) debugfs_create_file("tls_key", S_IRUSR, ctrl->debugfs_dir, ctrl, &nvmet_ctrl_tls_key_fops); #endif + debugfs_create_file("ciu", S_IRUSR, ctrl->debugfs_dir, ctrl, + &nvmet_ctrl_instance_ciu_fops); + debugfs_create_file("cirn", S_IRUSR, ctrl->debugfs_dir, ctrl, + &nvmet_ctrl_instance_cirn_fops); return 0; } -- 2.52.0