diff options
| -rw-r--r-- | drivers/staging/lustre/TODO | 310 |
1 files changed, 300 insertions, 10 deletions
diff --git a/drivers/staging/lustre/TODO b/drivers/staging/lustre/TODO index f194417d0af7..94446487748a 100644 --- a/drivers/staging/lustre/TODO +++ b/drivers/staging/lustre/TODO @@ -1,12 +1,302 @@ -* Possible remaining coding style fix. -* Remove deadcode. -* Separate client/server functionality. Functions only used by server can be - removed from client. -* Clean up libcfs layer. Ideally we can remove include/linux/libcfs entirely. -* Clean up CLIO layer. Lustre client readahead/writeback control needs to better - suit kernel providings. -* Add documents in Documentation. -* Other minor misc cleanups... +Currently all the work directed toward the lustre upstream client is tracked +at the following link: + +https://jira.hpdd.intel.com/browse/LU-9679 + +Under this ticket you will see the following work items that need to be +addressed: + +****************************************************************************** +* libcfs cleanup +* +* https://jira.hpdd.intel.com/browse/LU-9859 +* +* Track all the cleanups and simplification of the libcfs module. Remove +* functions the kernel provides. Possible intergrate some of the functionality +* into the kernel proper. +* +****************************************************************************** + +https://jira.hpdd.intel.com/browse/LU-100086 + +LNET_MINOR conflicts with USERIO_MINOR + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8130 + +Fix and simplify libcfs hash handling + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8703 + +The current way we handle SMP is wrong. Platforms like ARM and KNL can have +core and NUMA setups with things like NUMA nodes with no cores. We need to +handle such cases. This work also greatly simplified the lustre SMP code. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9019 + +Replace libcfs time API with standard kernel APIs. Also migrate away from +jiffies. We found jiffies can vary on nodes which can lead to corner cases +that can break the file system due to nodes having inconsistent behavior. +So move to time64_t and ktime_t as much as possible. + +****************************************************************************** +* Proper IB support for ko2iblnd +****************************************************************************** +https://jira.hpdd.intel.com/browse/LU-9179 + +Poor performance for the ko2iblnd driver. This is related to many of the +patches below that are missing from the linux client. +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9886 + +Crash in upstream kiblnd_handle_early_rxs() +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10394 / LU-10526 / LU-10089 + +Default to default to using MEM_REG +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10459 + +throttle tx based on queue depth +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9943 + +correct WR fast reg accounting +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10291 + +remove concurrent_sends tunable +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10213 + +calculate qp max_send_wrs properly +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9810 + +use less CQ entries for each connection +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10129 / LU-9180 + +rework map_on_demand behavior +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10129 + +query device capabilities +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10015 + +fix race at kiblnd_connect_peer +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9983 + +allow for discontiguous fragments +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9500 + +Don't Page Align remote_addr with FastReg +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9448 + +handle empty CPTs +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9507 + +Don't Assert On Reconnect with MultiQP +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9472 + +Fix FastReg map/unmap for MLX5 +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9425 + +Turn on 2 sges by default +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8943 + +Enable Multiple OPA Endpoints between Nodes +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-5718 + +multiple sges for work request +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9094 + +kill timedout txs from ibp_tx_queue +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9094 + +reconnect peer for REJ_INVALID_SERVICE_ID +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8752 + +Stop MLX5 triggering a dump_cqe +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8874 + +Move ko2iblnd to latest RDMA changes +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8875 / LU-8874 + +Change to new RDMA done callback mechanism + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9164 / LU-8874 + +Incorporate RDMA map/unamp API's into ko2iblnd + +****************************************************************************** +* sysfs/debugfs fixes +* +* https://jira.hpdd.intel.com/browse/LU-8066 +* +* The original migration to sysfs was done in haste without properly working +* utilities to test the changes. This covers the work to restore the proper +* behavior. Huge project to make this right. +* +****************************************************************************** + +https://jira.hpdd.intel.com/browse/LU-9431 + +The function class_process_proc_param was used for our mass updates of proc +tunables. It didn't work with sysfs and it was just ugly so it was removed. +In the process the ability to mass update thousands of clients was lost. This +work restores this in a sane way. + +------------------------------------------------------------------------------ +https://jira.hpdd.intel.com/browse/LU-9091 + +One the major request of users is the ability to pass in parameters into a +sysfs file in various different units. For example we can set max_pages_per_rpc +but this can vary on platforms due to different platform sizes. So you can +set this like max_pages_per_rpc=16MiB. The original code to handle this written +before the string helpers were created so the code doesn't follow that format +but it would be easy to move to. Currently the string helpers does the reverse +of what we need, changing bytes to string. We need to change a string to bytes. + +****************************************************************************** +* Proper user land to kernel space interface for Lustre +* +* https://jira.hpdd.intel.com/browse/LU-9680 +* +****************************************************************************** + +https://jira.hpdd.intel.com/browse/LU-8915 + +Don't use linux list structure as user land arguments for lnet selftest. +This code is pretty poor quality and really needs to be reworked. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8834 + +The lustre ioctl LL_IOC_FUTIMES_3 is very generic. Need to either work with +other file systems with similar functionality and make a common syscall +interface or rework our server code to automagically do it for us. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-6202 + +Cleanup up ioctl handling. We have many obsolete ioctls. Also the way we do +ioctls can be changed over to netlink. This also has the benefit of working +better with HPC systems that do IO forwarding. Such systems don't like ioctls +very well. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9667 + +More cleanups by making our utilities use sysfs instead of ioctls for LNet. +Also it has been requested to move the remaining ioctls to the netlink API. + +****************************************************************************** +* Misc +****************************************************************************** + +------------------------------------------------------------------------------ +https://jira.hpdd.intel.com/browse/LU-9855 + +Clean up obdclass preprocessor code. One of the major eye sores is the various +pointer redirections and macros used by the obdclass. This makes the code very +difficult to understand. It was requested by the Al Viro to clean this up before +we leave staging. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9633 + +Migrate to sphinx kernel-doc style comments. Add documents in Documentation. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-6142 + +Possible remaining coding style fix. Remove deadcode. Enforce kernel code +style. Other minor misc cleanups... + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8837 + +Separate client/server functionality. Functions only used by server can be +removed from client. Most of this has been done but we need a inspect of the +code to make sure. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-8964 + +Lustre client readahead/writeback control needs to better suit kernel providings. +Currently its being explored. We could end up replacing the CLIO read ahead +abstract with the kernel proper version. + +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9862 + +Patch that landed for LU-7890 leads to static checker errors +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-9868 + +dcache/namei fixes for lustre +------------------------------------------------------------------------------ + +https://jira.hpdd.intel.com/browse/LU-10467 + +use standard linux wait_events macros work by Neil Brown + +------------------------------------------------------------------------------ Please send any patches to Greg Kroah-Hartman <greg@kroah.com>, Andreas Dilger -<andreas.dilger@intel.com>, and Oleg Drokin <oleg.drokin@intel.com>. +<andreas.dilger@intel.com>, James Simmons <jsimmons@infradead.org> and +Oleg Drokin <oleg.drokin@intel.com>. |