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* [PATCH 00/16] sed-opal: fix shadow MBR enable/disable and clean up code
@ 2019-02-14  0:15 David Kozub
  2019-02-14  0:15 ` [PATCH 01/16] block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR David Kozub
                   ` (16 more replies)
  0 siblings, 17 replies; 39+ messages in thread
From: David Kozub @ 2019-02-14  0:15 UTC (permalink / raw)
  To: Jens Axboe, Jonathan Derrick, Scott Bauer, linux-block, linux-kernel
  Cc: Jonas Rabenstein, David Kozub

This patch series contains various code cleanup and fixes for Opal SED support.
It's been created by taking a part of the original patch series by Jonas and me
(PATCHv4 block: sed-opal: support shadow MBR done flag and write) [1], as
suggested by Christoph in [2].

The most important patch is the first one where I tried to fix the shadow MBR
enable/disable issue we discussed in [3]. This change goes against Christoph's
original propsal in [4] but I think - in light of the issue and keeping in mind
the planned addition of an IOCTL specifically for toggling the done flag - that
passing just OPAL_TRUE or OPAL_FALSE to set_mbr_done and set_mbr_enable_disable
is more useful and also more understandable. Maybe this change is superfluous if
Scott found the time to submit his take on the fix. (?)

I tried to include all the feedback from the v4 review[1]. I also added some
more trivial changes (11/16 as suggested in [4]) and also 13/16 motivated by the
same idea - that's why I again reached the magical number of 16 patches.

I kept the reviewed-by/acked-by tags where the changes were trivial but I
removed them where I thought a re-review would be useful.

I plan to submit the remaining patches from the original series (these that add
new Opal IOCTLs) after this fix and cleanup is accepted.

I did a brief test toggling shadow MBR and unlocking a locking range. I will try
to do more thorough tests - but I will not get to it before the beginning of the
next week. It would be great if this could get some more testing. Especially the
unlock from suspend part - that's something I don't have set up and I have not
tested.

The series applies on v5.0-rc6.

[1] https://lore.kernel.org/lkml/1549054223-12220-1-git-send-email-zub@linux.fjfi.cvut.cz/
[2] https://lore.kernel.org/lkml/20190204150415.GO31132@infradead.org/
[3] https://lore.kernel.org/lkml/alpine.LRH.2.21.1902072247060.29258@linux.fjfi.cvut.cz/
[4] https://lore.kernel.org/lkml/20190204145244.GJ31132@infradead.org/

David Kozub (12):
  block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR
  block: sed-opal: fix typos and formatting
  block: sed-opal: close parameter list in cmd_finalize
  block: sed-opal: unify cmd start
  block: sed-opal: unify error handling of responses
  block: sed-opal: reuse response_get_token to decrease code duplication
  block: sed-opal: add token for OPAL_LIFECYCLE
  block: sed-opal: unify retrieval of table columns
  block: sed-opal: use named Opal tokens instead of integer literals
  block: sed-opal: pass steps via argument rather than via opal_dev
  block: sed-opal: don't repeat opal_discovery0 in each steps array
  block: sed-opal: rename next to execute_steps

Jonas Rabenstein (4):
  block: sed-opal: use correct macro for method length
  block: sed-opal: unify space check in add_token_*
  block: sed-opal: print failed function address
  block: sed-opal: split generation of bytestring header and content

 block/opal_proto.h            |   2 +
 block/sed-opal.c              | 716 ++++++++++++++--------------------
 include/uapi/linux/sed-opal.h |   2 +-
 3 files changed, 287 insertions(+), 433 deletions(-)

-- 
2.20.1


^ permalink raw reply	[flat|nested] 39+ messages in thread
* [PATCH 16/16] block: sed-opal: rename next to execute_steps
@ 2019-01-03 22:59 David Kozub
  0 siblings, 0 replies; 39+ messages in thread
From: David Kozub @ 2019-01-03 22:59 UTC (permalink / raw)
  To: Jens Axboe, Scott Bauer, Jonathan Derrick, linux-block, linux-kernel
  Cc: Jonas Rabenstein

As the function is responsible for executing the individual steps supplied
in the steps argument, execute_steps is a more descriptive name than the
rather generic next.

Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz>
---
 block/sed-opal.c | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/block/sed-opal.c b/block/sed-opal.c
index cedf4d12138d..f2bd16de8764 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -401,8 +401,8 @@ static int execute_step(struct opal_dev *dev,
 	return error;
 }
 
-static int next(struct opal_dev *dev, const struct opal_step *steps,
-		size_t n_steps)
+static int execute_steps(struct opal_dev *dev,
+			 const struct opal_step *steps, size_t n_steps)
 {
 	size_t state;
 	int error;
@@ -2032,7 +2032,7 @@ static int opal_secure_erase_locking_range(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, erase_steps, ARRAY_SIZE(erase_steps));
+	ret = execute_steps(dev, erase_steps, ARRAY_SIZE(erase_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2049,7 +2049,7 @@ static int opal_erase_locking_range(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, erase_steps, ARRAY_SIZE(erase_steps));
+	ret = execute_steps(dev, erase_steps, ARRAY_SIZE(erase_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2075,7 +2075,7 @@ static int opal_enable_disable_shadow_mbr(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
+	ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2097,7 +2097,7 @@ static int opal_mbr_status(struct opal_dev *dev, struct opal_mbr_data *opal_mbr)
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
+	ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2120,7 +2120,7 @@ static int opal_write_shadow_mbr(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
+	ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2172,7 +2172,7 @@ static int opal_add_user_to_lr(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, steps, ARRAY_SIZE(steps));
+	ret = execute_steps(dev, steps, ARRAY_SIZE(steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2187,7 +2187,7 @@ static int opal_reverttper(struct opal_dev *dev, struct opal_key *opal)
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, revert_steps, ARRAY_SIZE(revert_steps));
+	ret = execute_steps(dev, revert_steps, ARRAY_SIZE(revert_steps));
 	mutex_unlock(&dev->dev_lock);
 
 	/*
@@ -2215,10 +2215,11 @@ static int __opal_lock_unlock(struct opal_dev *dev,
 	};
 
 	if (lk_unlk->session.sum)
-		return next(dev, unlock_sum_steps,
-			    ARRAY_SIZE(unlock_sum_steps));
+		return execute_steps(dev, unlock_sum_steps,
+				     ARRAY_SIZE(unlock_sum_steps));
 	else
-		return next(dev, unlock_steps, ARRAY_SIZE(unlock_steps));
+		return execute_steps(dev, unlock_steps,
+				     ARRAY_SIZE(unlock_steps));
 }
 
 static int __opal_set_mbr_done(struct opal_dev *dev, struct opal_key *key)
@@ -2230,7 +2231,7 @@ static int __opal_set_mbr_done(struct opal_dev *dev, struct opal_key *key)
 		{ end_opal_session, }
 	};
 
-	return next(dev, mbrdone_step, ARRAY_SIZE(mbrdone_step));
+	return execute_steps(dev, mbrdone_step, ARRAY_SIZE(mbrdone_step));
 }
 
 static int opal_lock_unlock(struct opal_dev *dev,
@@ -2265,7 +2266,7 @@ static int opal_take_ownership(struct opal_dev *dev, struct opal_key *opal)
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, owner_steps, ARRAY_SIZE(owner_steps));
+	ret = execute_steps(dev, owner_steps, ARRAY_SIZE(owner_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2286,7 +2287,7 @@ static int opal_activate_lsp(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, active_steps, ARRAY_SIZE(active_steps));
+	ret = execute_steps(dev, active_steps, ARRAY_SIZE(active_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2303,7 +2304,7 @@ static int opal_setup_locking_range(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, lr_steps, ARRAY_SIZE(lr_steps));
+	ret = execute_steps(dev, lr_steps, ARRAY_SIZE(lr_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2325,7 +2326,7 @@ static int opal_set_new_pw(struct opal_dev *dev, struct opal_new_pw *opal_pw)
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, pw_steps, ARRAY_SIZE(pw_steps));
+	ret = execute_steps(dev, pw_steps, ARRAY_SIZE(pw_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
@@ -2349,7 +2350,7 @@ static int opal_activate_user(struct opal_dev *dev,
 
 	mutex_lock(&dev->dev_lock);
 	setup_opal_dev(dev);
-	ret = next(dev, act_steps, ARRAY_SIZE(act_steps));
+	ret = execute_steps(dev, act_steps, ARRAY_SIZE(act_steps));
 	mutex_unlock(&dev->dev_lock);
 	return ret;
 }
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 39+ messages in thread
end of thread, other threads:[~2019-04-06 17:09 UTC | newest]

Thread overview: 39+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-14  0:15 [PATCH 00/16] sed-opal: fix shadow MBR enable/disable and clean up code David Kozub
2019-02-14  0:15 ` [PATCH 01/16] block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR David Kozub
2019-03-28 17:04   ` Christoph Hellwig
2019-04-06 15:15   ` Scott Bauer
2019-02-14  0:15 ` [PATCH 02/16] block: sed-opal: fix typos and formatting David Kozub
2019-03-28 17:05   ` Christoph Hellwig
2019-02-14  0:15 ` [PATCH 03/16] block: sed-opal: use correct macro for method length David Kozub
2019-02-14  0:15 ` [PATCH 04/16] block: sed-opal: unify space check in add_token_* David Kozub
2019-03-28 15:43   ` Derrick, Jonathan
2019-03-28 17:05   ` Christoph Hellwig
2019-04-06 15:18   ` Scott Bauer
2019-04-06 15:19   ` Scott Bauer
2019-02-14  0:15 ` [PATCH 05/16] block: sed-opal: close parameter list in cmd_finalize David Kozub
2019-02-14  0:15 ` [PATCH 06/16] block: sed-opal: unify cmd start David Kozub
2019-02-14  0:15 ` [PATCH 07/16] block: sed-opal: unify error handling of responses David Kozub
2019-02-14  0:16 ` [PATCH 08/16] block: sed-opal: reuse response_get_token to decrease code duplication David Kozub
2019-02-14  0:16 ` [PATCH 09/16] block: sed-opal: print failed function address David Kozub
2019-02-14  0:16 ` [PATCH 10/16] block: sed-opal: split generation of bytestring header and content David Kozub
2019-02-14  0:16 ` [PATCH 11/16] block: sed-opal: add token for OPAL_LIFECYCLE David Kozub
2019-03-28 15:43   ` Derrick, Jonathan
2019-03-28 17:06   ` Christoph Hellwig
2019-04-06 15:19   ` Scott Bauer
2019-02-14  0:16 ` [PATCH 12/16] block: sed-opal: unify retrieval of table columns David Kozub
2019-02-14  0:16 ` [PATCH 13/16] block: sed-opal: use named Opal tokens instead of integer literals David Kozub
2019-03-28 15:44   ` Derrick, Jonathan
2019-03-28 17:06   ` Christoph Hellwig
2019-04-06 15:20   ` Scott Bauer
2019-02-14  0:16 ` [PATCH 14/16] block: sed-opal: pass steps via argument rather than via opal_dev David Kozub
2019-03-28 15:44   ` Derrick, Jonathan
2019-03-28 17:07   ` Christoph Hellwig
2019-04-06 15:20   ` Scott Bauer
2019-02-14  0:16 ` [PATCH 15/16] block: sed-opal: don't repeat opal_discovery0 in each steps array David Kozub
2019-03-28 15:44   ` Derrick, Jonathan
2019-03-28 17:09   ` Christoph Hellwig
2019-04-06 15:22   ` Scott Bauer
2019-02-14  0:16 ` [PATCH 16/16] block: sed-opal: rename next to execute_steps David Kozub
2019-04-06 15:26 ` [PATCH 00/16] sed-opal: fix shadow MBR enable/disable and clean up code Scott Bauer
2019-04-06 17:09   ` Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2019-01-03 22:59 [PATCH 16/16] block: sed-opal: rename next to execute_steps David Kozub

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