mi: Add ISH bit (admin command cflags)

Add ish bit for mi admin commands that access media

Spec NVM-Express-Management-Interface-Specification
     -Revision-2.1-2025.08.01-Ratified
Figure 136: NVMe Admin Command Request Description
Command Flags (CFLGS): Bit 2 : Ignore Shutdown (ISH)
This bit shall have no effect on the value of the CSTS.SHST field.

(193 page from spec)
If an NVMe Admin Command does not require access to media, then the ISH
bit shall have no effect on the processing of that NVMe Admin Command.

spec NVM-Express-Base-Specification-Revision-2.3-2025.08.01-Ratified
Figure 84: Admin Commands Permitted to Return a Status Code of Admin
           Command Media Not Ready

From Figure 84, we can assume that below Admin commands access media
Capacity Management, Device Self-test, Firmware Commit,
Firmware Image Download, Get LBA Status, Get Log Page,
Namespace Attachment, Namespace Management, Format NVM, Sanitize,
Sanitize Namespace, Security Receive, Security Send, Vendor Specific

Signed-off-by: Steven Seungcheol Lee <[email protected]>
Reported-by: Hojin Ahn <[email protected]>

Author: sc108-lee

libnvme/examples/mi-mctp.c

@@ -565,7 +565,7 @@ int do_security_info(nvme_mi_ep_t ep, int argc, char **argv)
 		return -1;
 	}
 
-	nvme_init_security_receive(&cmd, 0, 0, 0, 0, 0, data, data_len);
+	nvme_init_security_receive(&cmd, false, 0, 0, 0, 0, 0, data, data_len);
 	rc = nvme_submit_admin_passthru(hdl, &cmd);
 	if (rc) {
 		warnx("can't perform Security Receive command: rc %d", rc);

libnvme/src/nvme/ioctl.c

@@ -188,6 +188,10 @@ int nvme_submit_admin_passthru(struct nvme_transport_handle *hdl,
 {
 	switch (hdl->type) {
 	case NVME_TRANSPORT_HANDLE_TYPE_DIRECT:
+		cmd->flags = 0; /*
+				 * Not supported: intended for command flags
+				 * (eg: SGL, FUSE)
+				 */
 		if (hdl->ioctl64)
 			return nvme_submit_passthru64(hdl,
 				NVME_IOCTL_ADMIN64_CMD, cmd);