From: Dietmar Maurer <dietmar@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [pbs-devel] [PATCH 11/11] tape: pmt - re-implement lock/unlock command
Date: Wed, 7 Apr 2021 12:23:08 +0200 [thread overview]
Message-ID: <20210407102308.9750-12-dietmar@proxmox.com> (raw)
In-Reply-To: <20210407102308.9750-1-dietmar@proxmox.com>
---
src/bin/pmt.rs | 6 ++----
src/tape/drive/lto/mod.rs | 12 ++++++++++++
src/tape/drive/lto/sg_tape.rs | 19 +++++++++++++++++++
3 files changed, 33 insertions(+), 4 deletions(-)
diff --git a/src/bin/pmt.rs b/src/bin/pmt.rs
index 7183dfe5..15fa591d 100644
--- a/src/bin/pmt.rs
+++ b/src/bin/pmt.rs
@@ -577,8 +577,7 @@ fn lock(param: Value) -> Result<(), Error> {
let mut handle = get_tape_handle(¶m)?;
- unimplemented!();
- // fixme: handle.mtop(MTCmd::MTLOCK, 1, "lock tape drive door")?;
+ handle.lock()?;
Ok(())
}
@@ -715,8 +714,7 @@ fn unlock(param: Value) -> Result<(), Error> {
let mut handle = get_tape_handle(¶m)?;
- unimplemented!();
- //handle.mtop(MTCmd::MTUNLOCK, 1, "unlock tape drive door")?;
+ handle.unlock()?;
Ok(())
}
diff --git a/src/tape/drive/lto/mod.rs b/src/tape/drive/lto/mod.rs
index f33049ab..de997cde 100644
--- a/src/tape/drive/lto/mod.rs
+++ b/src/tape/drive/lto/mod.rs
@@ -220,6 +220,18 @@ impl LtoTapeHandle {
pub fn volume_statistics(&mut self) -> Result<Lp17VolumeStatistics, Error> {
self.sg_tape.volume_statistics()
}
+
+ /// Lock the drive door
+ pub fn lock(&mut self) -> Result<(), Error> {
+ self.sg_tape.set_medium_removal(false)
+ .map_err(|err| format_err!("lock door failed - {}", err))
+ }
+
+ /// Unlock the drive door
+ pub fn unlock(&mut self) -> Result<(), Error> {
+ self.sg_tape.set_medium_removal(true)
+ .map_err(|err| format_err!("unlock door failed - {}", err))
+ }
}
diff --git a/src/tape/drive/lto/sg_tape.rs b/src/tape/drive/lto/sg_tape.rs
index f3d71edd..638ba330 100644
--- a/src/tape/drive/lto/sg_tape.rs
+++ b/src/tape/drive/lto/sg_tape.rs
@@ -189,6 +189,25 @@ impl SgTape {
Ok(())
}
+ /// Lock/Unlock drive door
+ pub fn set_medium_removal(&mut self, allow: bool) -> Result<(), ScsiError> {
+
+ let mut sg_raw = SgRaw::new(&mut self.file, 16)?;
+ sg_raw.set_timeout(Self::SCSI_TAPE_DEFAULT_TIMEOUT);
+ let mut cmd = Vec::new();
+ cmd.extend(&[0x1E, 0, 0, 0]);
+ if allow {
+ cmd.push(0);
+ } else {
+ cmd.push(1);
+ }
+ cmd.push(0); // control
+
+ sg_raw.do_command(&cmd)?;
+
+ Ok(())
+ }
+
pub fn rewind(&mut self) -> Result<(), Error> {
let mut sg_raw = SgRaw::new(&mut self.file, 16)?;
--
2.20.1
prev parent reply other threads:[~2021-04-07 10:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-07 10:22 [pbs-devel] [PATCH 00/11] Userspace tape driver Dietmar Maurer
2021-04-07 10:22 ` [pbs-devel] [PATCH 01/11] tape: introduce trait BlockRead Dietmar Maurer
2021-04-07 10:22 ` [pbs-devel] [PATCH 02/11] tape: introduce trait BlockWrite Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 03/11] tape: implement LTO userspace driver Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 04/11] tape: implement format/erase Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 05/11] tape: fix LEOM handling Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 06/11] tape: make fsf/bsf driver specific Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 07/11] tape: make sure there is a filemark at the end of the tape Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 08/11] sgutils2: add scsi_mode_sense helper Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 09/11] tape: correctly set/display drive option Dietmar Maurer
2021-04-07 10:23 ` [pbs-devel] [PATCH 10/11] tape: pmt - re-implement fsr/bsr Dietmar Maurer
2021-04-07 10:23 ` Dietmar Maurer [this message]
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