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Sat, 11 Jul 2026 19:25:19 -0700 (PDT) Received: from ceto.lan ([2607:fb90:9c20:2264::1c31]) by smtp.googlemail.com with ESMTPSA id 5a478bee46e88-3117462f5c7sm60704693eec.0.2026.07.11.19.25.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Jul 2026 19:25:18 -0700 (PDT) From: Mohamed Khalfella To: Justin Tee , Naresh Gottumukkala , Paul Ely , Chaitanya Kulkarni , Christoph Hellwig , Jens Axboe , Keith Busch , Sagi Grimberg , James Smart , Hannes Reinecke , Randy Jennings , Dhaval Giani Cc: Aaron Dailey , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, Mohamed Khalfella Subject: [PATCH v5 02/16] nvmet/debugfs: Export controller CIU and CIRN via debugfs Date: Sat, 11 Jul 2026 19:23:23 -0700 Message-ID: <20260712022437.3743117-3-mkhalfella@purestorage.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260712022437.3743117-1-mkhalfella@purestorage.com> References: <20260712022437.3743117-1-mkhalfella@purestorage.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260711_192520_602931_AF551E8A X-CRM114-Status: GOOD ( 11.01 ) 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 e85fe1d4c9f8..4de460879d0b 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); static const char *const nvmet_pr_type_names[] = { [NVME_PR_WRITE_EXCLUSIVE] = "write_exclusive", @@ -287,6 +304,10 @@ 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; } -- 2.54.0