** Description changed:
-
== SRU Justification ==
This SRU was requested by IBM. It contains one SAUCE patch and three
commits from linux.next.
IBM requested that we revert a set of SAUCE patches from 18.04 and
replace them with patches from linux-next. Based on review comments,
there has been minor changes from the original SAUCE patches and the
versions in linux-next.
The first SAUCE patch contains all the changes between the current version
of SAUCE patches for latest cxlflash patches in bionic and the latest
version accepted by the community. This only has the needed changes and
makes it so we don't have to revert and re-apply a high number of patches.
In addition to the SAUCE patch, IBM requested the 3 additional new patches
from the linux-next tree.
== Fixes ==
UBUNTU: SAUCE: (no-up) cxlflash: OCXL diff between v2 and v3
a3feb6ef50de ("scsi: cxlflash: Synchronize reset and remove ops")
9a597cd4c0ce ("scsi: cxlflash: Remove commmands from pending list on timeout)"
d2d354a606d5 ("scsi: cxlflash: Handle spurious interrupts")
== Regression Potential ==
Medium. All the patches are specific to the cxlflash driver, but there
are four of them and one is a SAUCE patch.
== Test Case ==
A test kernel was built with these patches and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
== Comment: #0 - UMA KRISHNAN <ukri...@us.ibm.com> - 2018-04-30 14:41:30 ==
---Problem Description---
Request to revert SAUCE patches from 18.04 and apply the patches from
next/master.
Below set of cxlflash patches were submitted to Canonical after they
were sent to the community. Based on review comments, there has been
minor changes from that version. This BZ is to request reverting those
SAUCE patches with the ones that are queued in next/master tree for
4.18.
- SAUCE: cxlflash: Preserve number of interrupts for master contexts
- SAUCE: cxlflash: Avoid clobbering context control register value
- SAUCE: cxlflash: Add argument identifier names
- SAUCE: cxlflash: Introduce OCXL backend
- SAUCE: cxlflash: Hardware AFU for OCXL
- SAUCE: cxlflash: Read host function configuration
- SAUCE: cxlflash: Setup function acTag range
- SAUCE: cxlflash: Read host AFU configuration
- SAUCE: cxlflash: Setup AFU acTag range
- SAUCE: cxlflash: Setup AFU PASID
- SAUCE: cxlflash: Adapter context support for OCXL
- SAUCE: cxlflash: Use IDR to manage adapter contexts
- SAUCE: cxlflash: Support adapter file descriptors for OCXL
- SAUCE: cxlflash: Support adapter context discovery
- SAUCE: cxlflash: Support image reload policy modification
- SAUCE: cxlflash: MMIO map the AFU
- SAUCE: cxlflash: Support starting an adapter context
- SAUCE: cxlflash: Support process specific mappings
- SAUCE: cxlflash: Support AFU state toggling
- SAUCE: cxlflash: Support reading adapter VPD data
- SAUCE: cxlflash: Setup function OCXL link
- SAUCE: cxlflash: Setup OCXL transaction layer
- SAUCE: cxlflash: Support process element lifecycle
- SAUCE: cxlflash: Support AFU interrupt management
- SAUCE: cxlflash: Support AFU interrupt mapping and registration
- SAUCE: cxlflash: Support starting user contexts
- SAUCE: cxlflash: Support adapter context polling
- SAUCE: cxlflash: Support adapter context reading
- SAUCE: cxlflash: Support adapter context mmap and release
- SAUCE: cxlflash: Support file descriptor mapping
- SAUCE: cxlflash: Introduce object handle fop
- SAUCE: cxlflash: Setup LISNs for user contexts
- SAUCE: cxlflash: Setup LISNs for master contexts
- SAUCE: cxlflash: Update synchronous interrupt status bits
- SAUCE: cxlflash: Introduce OCXL context state machine
- SAUCE: cxlflash: Register for translation errors
- SAUCE: cxlflash: Support AFU reset
- SAUCE: cxlflash: Enable OCXL operations
Also, there are 3 additional patches added to end of this series that we
would like to request being pulled into the SRU stream. These 3 patches address
bug fixes.
The commit ids for the patches queued in next/master tree are,
768999d6b1eadc6a13b1fba1886f1708f433d82b scsi: cxlflash: Preserve number of
interrupts for master contexts
6c2b116dd38e3fbda10c3e3d5ac80ea7442e4f4d scsi: cxlflash: Avoid clobbering
context control register value
fcace1d5e11f518c6f91dd245fa1ac37393b47d3 scsi: cxlflash: Add argument
identifier names
863dbdc0552f8bc100df48bb231089c382b89004 scsi: cxlflash: Introduce OCXL
backend
f2180daa83950ff8183f70b1b78d67cb13fd90b2 scsi: cxlflash: Hardware AFU for OCXL
1042535633554592d7d95a9cf83d2940803689e0 scsi: cxlflash: Read host function
configuration
ba84823a8b448207659753ae4f9c8b956923bada scsi: cxlflash: Setup function acTag
range
f55ced2dcd00ab257a2bb25eee619b75cda24817 scsi: cxlflash: Read host AFU
configuration
c5a8fec11278e245136c7f696c914269c58a6000 scsi: cxlflash: Setup AFU acTag range
b42d68d728a63337bcb7860b59e6458946d94a84 scsi: cxlflash: Setup AFU PASID
de25ec59a75802584aac97aed05fd94094dbbb58 scsi: cxlflash: Adapter context
support for OCXL
a76fc993e399f54b37f46107a31e817c779f2b82 scsi: cxlflash: Use IDR to manage
adapter contexts
09f35da5fe218baf73f7b4efd281e2c19490512c scsi: cxlflash: Support adapter file
descriptors for OCXL
17f9335bc59c1cf8f93617eee137e745abd71a3f scsi: cxlflash: Support adapter
context discovery
a5cfe355f23d4410d69af0e5b196b095463a0b4b scsi: cxlflash: Support image reload
policy modification
0c62e7c091a4e0a01a7c6027fe719625ab2f521e scsi: cxlflash: MMIO map the AFU
f39bab766ea4f0b3d5888fdd7d66babd7bef3966 scsi: cxlflash: Support starting an
adapter context
bef2014e8bd6391988b588acb969b48133072f17 scsi: cxlflash: Support process
specific mappings
58b43437bd85565c74c2b6975cc71003b93f3559 scsi: cxlflash: Support AFU state
toggling
08d6154b6064021db6e9b822559f3accfcb0a8f7 scsi: cxlflash: Support reading
adapter VPD data
c11b0b435a7b1001d2451cde8dc249cc5ef614a0 scsi: cxlflash: Setup function OCXL
link
fad7fd669ac666e411682ca28104a15d035bc957 scsi: cxlflash: Setup OCXL
transaction layer
8733bd8b329124fa24d717daa2285adeba0ecc70 scsi: cxlflash: Support process
element lifecycle
eb249077b3fb27939f57975dac8c7ec719066d3a scsi: cxlflash: Support AFU
interrupt management
8c58d224f173941787f635d3e30ce3479802118c scsi: cxlflash: Support AFU
interrupt mapping and registration
87b78b7cadd5518593fee714d1c4ad9e67e5f5b1 scsi: cxlflash: Support starting
user contexts
65a9b16c95b48388a845513f0e3ef6db99f8068a scsi: cxlflash: Support adapter
context polling
6a6093bab2df2e41f558695697077df5d95fa50b scsi: cxlflash: Support adapter
context reading
eff344dc47ce1f3f452d34d7e8801c472b7bd5ec scsi: cxlflash: Support adapter
context mmap and release
195fc14998630cff370d1f46c4cd5833072dab7d scsi: cxlflash: Support file
descriptor mapping
f9662c034e25c973cc38ee5aebfd2516601f5f75 scsi: cxlflash: Introduce object
handle fop
3aeb1833e4e2374c22fe1b3d05affe64a95a0839 scsi: cxlflash: Setup LISNs for user
contexts
41676671021c361b75da10e8ad16f95e8daa8090 scsi: cxlflash: Setup LISNs for
master contexts
e05df99313b8fedad51f98e74c751a33fbfb6bad scsi: cxlflash: Update synchronous
interrupt status bits
6d11971a38cce007899586e98667061a1fddfc23 scsi: cxlflash: Introduce OCXL
context state machine
d5c11f5c33fb3edfe6031d38dc650fc5017c4a40 scsi: cxlflash: Register for
translation errors
41ef5d04768990f3ab64a8fec581217df65f3f30 scsi: cxlflash: Support AFU reset
6a7969eda1cf4bcb8f8eb8f11a2ebdff24a39ac5 scsi: cxlflash: Enable OCXL
operations
7a3593e6560019ca1c3528eba1c2362cf5bddef4 scsi: cxlflash: Synchronize reset
and remove ops
bcfd01d97570d8a12c6391cc0ee7f0863b81c6d4 scsi: cxlflash: Remove commmands
from pending list on timeout
d54f3841703b313416c08a04848e4d97aa6a8355 scsi: cxlflash: Handle spurious
interrupts
If you would rather handpick the specific commits that had deviations,
please let me know and I can list them. Since 18.04 is a long term
release it would help to be in sync with the upstream set of patches to
avoid back porting issues in the future. Please let me know if you have
questions/concerns. Thanks a LOT !
Contact Information = ukri...@linux.vnet.ibm.com
---uname output---
n/a
Machine Type = n/a
---Debugger---
A debugger is not configured
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
*Additional Instructions for ukri...@linux.vnet.ibm.com:
-Attach sysctl -a output output to the bug.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1768431
Title:
Request to revert SAUCE patches in the 18.04 SRU and update with
upstream version
Status in The Ubuntu-power-systems project:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
== SRU Justification ==
This SRU was requested by IBM. It contains one SAUCE patch and three
commits from linux.next.
IBM requested that we revert a set of SAUCE patches from 18.04 and
replace them with patches from linux-next. Based on review comments,
there has been minor changes from the original SAUCE patches and the
versions in linux-next.
The first SAUCE patch contains all the changes between the current version
of SAUCE patches for latest cxlflash patches in bionic and the latest
version accepted by the community. This only has the needed changes and
makes it so we don't have to revert and re-apply a high number of patches.
In addition to the SAUCE patch, IBM requested the 3 additional new patches
from the linux-next tree.
== Fixes ==
UBUNTU: SAUCE: (no-up) cxlflash: OCXL diff between v2 and v3
a3feb6ef50de ("scsi: cxlflash: Synchronize reset and remove ops")
9a597cd4c0ce ("scsi: cxlflash: Remove commmands from pending list on timeout)"
d2d354a606d5 ("scsi: cxlflash: Handle spurious interrupts")
== Regression Potential ==
Medium. All the patches are specific to the cxlflash driver, but there
are four of them and one is a SAUCE patch.
== Test Case ==
A test kernel was built with these patches and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
== Comment: #0 - UMA KRISHNAN <ukri...@us.ibm.com> - 2018-04-30 14:41:30 ==
---Problem Description---
Request to revert SAUCE patches from 18.04 and apply the patches from
next/master.
Below set of cxlflash patches were submitted to Canonical after they
were sent to the community. Based on review comments, there has been
minor changes from that version. This BZ is to request reverting those
SAUCE patches with the ones that are queued in next/master tree for
4.18.
- SAUCE: cxlflash: Preserve number of interrupts for master contexts
- SAUCE: cxlflash: Avoid clobbering context control register value
- SAUCE: cxlflash: Add argument identifier names
- SAUCE: cxlflash: Introduce OCXL backend
- SAUCE: cxlflash: Hardware AFU for OCXL
- SAUCE: cxlflash: Read host function configuration
- SAUCE: cxlflash: Setup function acTag range
- SAUCE: cxlflash: Read host AFU configuration
- SAUCE: cxlflash: Setup AFU acTag range
- SAUCE: cxlflash: Setup AFU PASID
- SAUCE: cxlflash: Adapter context support for OCXL
- SAUCE: cxlflash: Use IDR to manage adapter contexts
- SAUCE: cxlflash: Support adapter file descriptors for OCXL
- SAUCE: cxlflash: Support adapter context discovery
- SAUCE: cxlflash: Support image reload policy modification
- SAUCE: cxlflash: MMIO map the AFU
- SAUCE: cxlflash: Support starting an adapter context
- SAUCE: cxlflash: Support process specific mappings
- SAUCE: cxlflash: Support AFU state toggling
- SAUCE: cxlflash: Support reading adapter VPD data
- SAUCE: cxlflash: Setup function OCXL link
- SAUCE: cxlflash: Setup OCXL transaction layer
- SAUCE: cxlflash: Support process element lifecycle
- SAUCE: cxlflash: Support AFU interrupt management
- SAUCE: cxlflash: Support AFU interrupt mapping and registration
- SAUCE: cxlflash: Support starting user contexts
- SAUCE: cxlflash: Support adapter context polling
- SAUCE: cxlflash: Support adapter context reading
- SAUCE: cxlflash: Support adapter context mmap and release
- SAUCE: cxlflash: Support file descriptor mapping
- SAUCE: cxlflash: Introduce object handle fop
- SAUCE: cxlflash: Setup LISNs for user contexts
- SAUCE: cxlflash: Setup LISNs for master contexts
- SAUCE: cxlflash: Update synchronous interrupt status bits
- SAUCE: cxlflash: Introduce OCXL context state machine
- SAUCE: cxlflash: Register for translation errors
- SAUCE: cxlflash: Support AFU reset
- SAUCE: cxlflash: Enable OCXL operations
Also, there are 3 additional patches added to end of this series that we
would like to request being pulled into the SRU stream. These 3 patches address
bug fixes.
The commit ids for the patches queued in next/master tree are,
768999d6b1eadc6a13b1fba1886f1708f433d82b scsi: cxlflash: Preserve number of
interrupts for master contexts
6c2b116dd38e3fbda10c3e3d5ac80ea7442e4f4d scsi: cxlflash: Avoid clobbering
context control register value
fcace1d5e11f518c6f91dd245fa1ac37393b47d3 scsi: cxlflash: Add argument
identifier names
863dbdc0552f8bc100df48bb231089c382b89004 scsi: cxlflash: Introduce OCXL
backend
f2180daa83950ff8183f70b1b78d67cb13fd90b2 scsi: cxlflash: Hardware AFU for OCXL
1042535633554592d7d95a9cf83d2940803689e0 scsi: cxlflash: Read host function
configuration
ba84823a8b448207659753ae4f9c8b956923bada scsi: cxlflash: Setup function acTag
range
f55ced2dcd00ab257a2bb25eee619b75cda24817 scsi: cxlflash: Read host AFU
configuration
c5a8fec11278e245136c7f696c914269c58a6000 scsi: cxlflash: Setup AFU acTag range
b42d68d728a63337bcb7860b59e6458946d94a84 scsi: cxlflash: Setup AFU PASID
de25ec59a75802584aac97aed05fd94094dbbb58 scsi: cxlflash: Adapter context
support for OCXL
a76fc993e399f54b37f46107a31e817c779f2b82 scsi: cxlflash: Use IDR to manage
adapter contexts
09f35da5fe218baf73f7b4efd281e2c19490512c scsi: cxlflash: Support adapter file
descriptors for OCXL
17f9335bc59c1cf8f93617eee137e745abd71a3f scsi: cxlflash: Support adapter
context discovery
a5cfe355f23d4410d69af0e5b196b095463a0b4b scsi: cxlflash: Support image reload
policy modification
0c62e7c091a4e0a01a7c6027fe719625ab2f521e scsi: cxlflash: MMIO map the AFU
f39bab766ea4f0b3d5888fdd7d66babd7bef3966 scsi: cxlflash: Support starting an
adapter context
bef2014e8bd6391988b588acb969b48133072f17 scsi: cxlflash: Support process
specific mappings
58b43437bd85565c74c2b6975cc71003b93f3559 scsi: cxlflash: Support AFU state
toggling
08d6154b6064021db6e9b822559f3accfcb0a8f7 scsi: cxlflash: Support reading
adapter VPD data
c11b0b435a7b1001d2451cde8dc249cc5ef614a0 scsi: cxlflash: Setup function OCXL
link
fad7fd669ac666e411682ca28104a15d035bc957 scsi: cxlflash: Setup OCXL
transaction layer
8733bd8b329124fa24d717daa2285adeba0ecc70 scsi: cxlflash: Support process
element lifecycle
eb249077b3fb27939f57975dac8c7ec719066d3a scsi: cxlflash: Support AFU
interrupt management
8c58d224f173941787f635d3e30ce3479802118c scsi: cxlflash: Support AFU
interrupt mapping and registration
87b78b7cadd5518593fee714d1c4ad9e67e5f5b1 scsi: cxlflash: Support starting
user contexts
65a9b16c95b48388a845513f0e3ef6db99f8068a scsi: cxlflash: Support adapter
context polling
6a6093bab2df2e41f558695697077df5d95fa50b scsi: cxlflash: Support adapter
context reading
eff344dc47ce1f3f452d34d7e8801c472b7bd5ec scsi: cxlflash: Support adapter
context mmap and release
195fc14998630cff370d1f46c4cd5833072dab7d scsi: cxlflash: Support file
descriptor mapping
f9662c034e25c973cc38ee5aebfd2516601f5f75 scsi: cxlflash: Introduce object
handle fop
3aeb1833e4e2374c22fe1b3d05affe64a95a0839 scsi: cxlflash: Setup LISNs for user
contexts
41676671021c361b75da10e8ad16f95e8daa8090 scsi: cxlflash: Setup LISNs for
master contexts
e05df99313b8fedad51f98e74c751a33fbfb6bad scsi: cxlflash: Update synchronous
interrupt status bits
6d11971a38cce007899586e98667061a1fddfc23 scsi: cxlflash: Introduce OCXL
context state machine
d5c11f5c33fb3edfe6031d38dc650fc5017c4a40 scsi: cxlflash: Register for
translation errors
41ef5d04768990f3ab64a8fec581217df65f3f30 scsi: cxlflash: Support AFU reset
6a7969eda1cf4bcb8f8eb8f11a2ebdff24a39ac5 scsi: cxlflash: Enable OCXL
operations
7a3593e6560019ca1c3528eba1c2362cf5bddef4 scsi: cxlflash: Synchronize reset
and remove ops
bcfd01d97570d8a12c6391cc0ee7f0863b81c6d4 scsi: cxlflash: Remove commmands
from pending list on timeout
d54f3841703b313416c08a04848e4d97aa6a8355 scsi: cxlflash: Handle spurious
interrupts
If you would rather handpick the specific commits that had deviations,
please let me know and I can list them. Since 18.04 is a long term
release it would help to be in sync with the upstream set of patches
to avoid back porting issues in the future. Please let me know if you
have questions/concerns. Thanks a LOT !
Contact Information = ukri...@linux.vnet.ibm.com
---uname output---
n/a
Machine Type = n/a
---Debugger---
A debugger is not configured
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
*Additional Instructions for ukri...@linux.vnet.ibm.com:
-Attach sysctl -a output output to the bug.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1768431/+subscriptions
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