[dpdk-dev] [PATCH 1/1] doc: announce change in power API

[dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Hajkowski]

From: Marcin Hajkowski <marcinx.hajkowski@intel.com>

Function rte_power_set_env will no longer return
success on attempt to set env in initialized state.

Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
---
 doc/guides/rel_notes/deprecation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 1b4fcb7e6..7899e6874 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -75,3 +75,8 @@ Deprecation Notices
 
 * crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
   changed from 0.49.0 to 0.52.0.
+
+* power: ``rte_power_set_env`` function will no longer return 0 on attempt
+  to set new power environment if power environment was already initialized.
+  Instead, the function will return -1 unless the environment is unset first
+  (using ``rte_power_unset_env``).
-- 
2.17.2

--------------------------------------------------------------
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Registered in Ireland
Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
Registered Number: 308263


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[dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Hajkowski]

From: Marcin Hajkowski <marcinx.hajkowski@intel.com>

Function rte_power_set_env will no longer return
success on attempt to set env in initialized state.

Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
---
 doc/guides/rel_notes/deprecation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 1b4fcb7e6..7899e6874 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -75,3 +75,8 @@ Deprecation Notices
 
 * crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
   changed from 0.49.0 to 0.52.0.
+
+* power: ``rte_power_set_env`` function will no longer return 0 on attempt
+  to set new power environment if power environment was already initialized.
+  Instead, the function will return -1 unless the environment is unset first
+  (using ``rte_power_unset_env``).
-- 
2.17.2

--------------------------------------------------------------
Intel Research and Development Ireland Limited
Registered in Ireland
Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
Registered Number: 308263


This e-mail and any attachments may contain confidential material for the sole
use of the intended recipient(s). Any review or distribution by others is
strictly prohibited. If you are not the intended recipient, please contact the
sender and delete all copies.

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Rami Rosen]

Hajkowski ‏<marcinx.hajkowski@intel.com>:

> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
>
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
>
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---
>

For further patches, please remove the legal disclaimer at the bottom.

Reviewed-by: Rami Rosen <ramirose@gmail.com>

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Rami Rosen]

Hajkowski ‏<marcinx.hajkowski@intel.com>:

> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
>
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
>
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---
>

For further patches, please remove the legal disclaimer at the bottom.

Reviewed-by: Rami Rosen <ramirose@gmail.com>

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Hunt, David]

On 13/3/2019 7:21 PM, Hajkowski wrote:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
>
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
>
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---


Acked-by: David Hunt <david.hunt@intel.com>

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Hunt, David]

On 13/3/2019 7:21 PM, Hajkowski wrote:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
>
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
>
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---


Acked-by: David Hunt <david.hunt@intel.com>

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Thomas Monjalon]

> > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> >
> > Function rte_power_set_env will no longer return
> > success on attempt to set env in initialized state.
> >
> > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Acked-by: David Hunt <david.hunt@intel.com>

Any other comment about this deprecation notice?

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Thomas Monjalon]

> > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> >
> > Function rte_power_set_env will no longer return
> > success on attempt to set env in initialized state.
> >
> > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Acked-by: David Hunt <david.hunt@intel.com>

Any other comment about this deprecation notice?

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Burakov, Anatoly]

On 13-Mar-19 7:21 PM, Hajkowski wrote:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
> 
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---

Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

-- 
Thanks,
Anatoly

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Burakov, Anatoly]

On 13-Mar-19 7:21 PM, Hajkowski wrote:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
> 
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> ---

Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

-- 
Thanks,
Anatoly

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Bruce Richardson]

On Fri, May 10, 2019 at 01:28:09AM +0200, Thomas Monjalon wrote:
> > > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > >
> > > Function rte_power_set_env will no longer return
> > > success on attempt to set env in initialized state.
> > >
> > > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > 
> > Acked-by: David Hunt <david.hunt@intel.com>
> 
> Any other comment about this deprecation notice?
> 
Seems ok to me, though the actual text is maybe a little unclear. It
implies that the function will always return -1 unless the variable is
unset when the function terminates (which seems to imply a failure case).
What I presume is meant is that we have three possibilities:

* The variable is set by the function -> return 0
* The varaible is already set, so no action needed -> return -1 (and set
  rte_errno to EEXIST or EALREADY??)
* Setting the variable failed -> return -1 (and set rte_errno to ??)

Is my understanding correct? Can the deprecation notice be improved to make
it clear that only the middle case is the one being changed, e.g. by adding
"in this case" to the second sentence. It might also be worthwhile calling
out what the errno value will be to identify this failure vs regular
failures.

/Bruce

PS: For this case, is there a reason to make it an error? Would a +1 value
not also do, so anything non-zero implies no work done, and anything >=0
means that the value is set? Call set on something already set doesn't
really seem like an error case to me.

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Bruce Richardson]

On Fri, May 10, 2019 at 01:28:09AM +0200, Thomas Monjalon wrote:
> > > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > >
> > > Function rte_power_set_env will no longer return
> > > success on attempt to set env in initialized state.
> > >
> > > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > 
> > Acked-by: David Hunt <david.hunt@intel.com>
> 
> Any other comment about this deprecation notice?
> 
Seems ok to me, though the actual text is maybe a little unclear. It
implies that the function will always return -1 unless the variable is
unset when the function terminates (which seems to imply a failure case).
What I presume is meant is that we have three possibilities:

* The variable is set by the function -> return 0
* The varaible is already set, so no action needed -> return -1 (and set
  rte_errno to EEXIST or EALREADY??)
* Setting the variable failed -> return -1 (and set rte_errno to ??)

Is my understanding correct? Can the deprecation notice be improved to make
it clear that only the middle case is the one being changed, e.g. by adding
"in this case" to the second sentence. It might also be worthwhile calling
out what the errno value will be to identify this failure vs regular
failures.

/Bruce

PS: For this case, is there a reason to make it an error? Would a +1 value
not also do, so anything non-zero implies no work done, and anything >=0
means that the value is set? Call set on something already set doesn't
really seem like an error case to me.

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Bruce Richardson]

On Fri, May 10, 2019 at 10:28:14AM +0100, Bruce Richardson wrote:
> On Fri, May 10, 2019 at 01:28:09AM +0200, Thomas Monjalon wrote:
> > > > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > > >
> > > > Function rte_power_set_env will no longer return
> > > > success on attempt to set env in initialized state.
> > > >
> > > > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > > 
> > > Acked-by: David Hunt <david.hunt@intel.com>
> > 
> > Any other comment about this deprecation notice?
> > 
> Seems ok to me, though the actual text is maybe a little unclear. It
> implies that the function will always return -1 unless the variable is
> unset when the function terminates (which seems to imply a failure case).
> What I presume is meant is that we have three possibilities:
> 
> * The variable is set by the function -> return 0
> * The varaible is already set, so no action needed -> return -1 (and set
>   rte_errno to EEXIST or EALREADY??)
> * Setting the variable failed -> return -1 (and set rte_errno to ??)
> 
> Is my understanding correct? Can the deprecation notice be improved to make
> it clear that only the middle case is the one being changed, e.g. by adding
> "in this case" to the second sentence. It might also be worthwhile calling
> out what the errno value will be to identify this failure vs regular
> failures.
> 
> /Bruce
> 
> PS: For this case, is there a reason to make it an error? Would a +1 value
> not also do, so anything non-zero implies no work done, and anything >=0
> means that the value is set? Call set on something already set doesn't
> really seem like an error case to me.

Sorry, forgot to put:

For changing the ABI itself, no issues, so with the small rewording asked
for, please add my ack.

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Re: [dpdk-dev] [PATCH 1/1] doc: announce change in power API

[Bruce Richardson]

On Fri, May 10, 2019 at 10:28:14AM +0100, Bruce Richardson wrote:
> On Fri, May 10, 2019 at 01:28:09AM +0200, Thomas Monjalon wrote:
> > > > From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > > >
> > > > Function rte_power_set_env will no longer return
> > > > success on attempt to set env in initialized state.
> > > >
> > > > Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> > > 
> > > Acked-by: David Hunt <david.hunt@intel.com>
> > 
> > Any other comment about this deprecation notice?
> > 
> Seems ok to me, though the actual text is maybe a little unclear. It
> implies that the function will always return -1 unless the variable is
> unset when the function terminates (which seems to imply a failure case).
> What I presume is meant is that we have three possibilities:
> 
> * The variable is set by the function -> return 0
> * The varaible is already set, so no action needed -> return -1 (and set
>   rte_errno to EEXIST or EALREADY??)
> * Setting the variable failed -> return -1 (and set rte_errno to ??)
> 
> Is my understanding correct? Can the deprecation notice be improved to make
> it clear that only the middle case is the one being changed, e.g. by adding
> "in this case" to the second sentence. It might also be worthwhile calling
> out what the errno value will be to identify this failure vs regular
> failures.
> 
> /Bruce
> 
> PS: For this case, is there a reason to make it an error? Would a +1 value
> not also do, so anything non-zero implies no work done, and anything >=0
> means that the value is set? Call set on something already set doesn't
> really seem like an error case to me.

Sorry, forgot to put:

For changing the ABI itself, no issues, so with the small rewording asked
for, please add my ack.

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

[dpdk-dev] [PATCH v2] doc: announce change in power API

[Hajkowski]

From: Marcin Hajkowski <marcinx.hajkowski@intel.com>

Function rte_power_set_env will no longer return
success on attempt to set env in initialized state.

Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
Reviewed-by: Rami Rosen <ramirose@gmail.com>
Acked-by: David Hunt <david.hunt@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
 doc/guides/rel_notes/deprecation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index b47c8c254..504ca7ec6 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -82,3 +82,8 @@ Deprecation Notices
 * cryptodev: the ``uint8_t *data`` member of ``key`` structure in the xforms
   structure (``rte_crypto_cipher_xform``, ``rte_crypto_auth_xform``, and
   ``rte_crypto_aead_xform``) will be changed to ``const uint8_t *data``.
+
+* power: ``rte_power_set_env`` function will no longer return 0 on attempt
+  to set new power environment if power environment was already initialized.
+  In this case the function will return -1 unless the environment is unset first
+  (using ``rte_power_unset_env``). Other function usage scenarios will not change.
-- 
2.17.2

[dpdk-dev] [PATCH v2] doc: announce change in power API

[Hajkowski]

From: Marcin Hajkowski <marcinx.hajkowski@intel.com>

Function rte_power_set_env will no longer return
success on attempt to set env in initialized state.

Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
Reviewed-by: Rami Rosen <ramirose@gmail.com>
Acked-by: David Hunt <david.hunt@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
 doc/guides/rel_notes/deprecation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index b47c8c254..504ca7ec6 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -82,3 +82,8 @@ Deprecation Notices
 * cryptodev: the ``uint8_t *data`` member of ``key`` structure in the xforms
   structure (``rte_crypto_cipher_xform``, ``rte_crypto_auth_xform``, and
   ``rte_crypto_aead_xform``) will be changed to ``const uint8_t *data``.
+
+* power: ``rte_power_set_env`` function will no longer return 0 on attempt
+  to set new power environment if power environment was already initialized.
+  In this case the function will return -1 unless the environment is unset first
+  (using ``rte_power_unset_env``). Other function usage scenarios will not change.
-- 
2.17.2

Re: [dpdk-dev] [PATCH v2] doc: announce change in power API

[Thomas Monjalon]

13/05/2019 15:52, Hajkowski:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
> 
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> Reviewed-by: Rami Rosen <ramirose@gmail.com>
> Acked-by: David Hunt <david.hunt@intel.com>
> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied, thanks

Re: [dpdk-dev] [PATCH v2] doc: announce change in power API

[Thomas Monjalon]

13/05/2019 15:52, Hajkowski:
> From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> 
> Function rte_power_set_env will no longer return
> success on attempt to set env in initialized state.
> 
> Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
> Reviewed-by: Rami Rosen <ramirose@gmail.com>
> Acked-by: David Hunt <david.hunt@intel.com>
> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied, thanks