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[net-next,v2,0/6] net/ncsi: Allow enabling multiple packages & channels

Message ID 20181023215201.27315-1-sam@mendozajonas.com
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Series net/ncsi: Allow enabling multiple packages & channels | expand

Message

Sam Mendoza-Jonas Oct. 23, 2018, 9:51 p.m. UTC 
This series extends the NCSI driver to configure multiple packages
and/or channels simultaneously. Since the RFC series this includes a few
extra changes to fix areas in the driver that either made this harder or
were roadblocks due to deviations from the NCSI specification.

Patches 1 & 2 fix two issues where the driver made assumptions about the
capabilities of the NCSI topology.
Patches 3 & 4 change some internal semantics slightly to make multi-mode
easier.
Patch 5 introduces a cleaner way of reconfiguring the NCSI configuration
and keeping track of channel states.
Patch 6 implements the main multi-package/multi-channel configuration,
configured via the Netlink interface.

Readers who have an interesting NCSI setup - especially multi-package
with HWA - please test! I think I've covered all permutations but I
don't have infinite hardware to test on.

Changes in v2:
- Updated use of the channel lock in ncsi_reset_dev(), making the
channel invisible and leaving the monitor check to
ncsi_stop_channel_monitor().
- Fixed ncsi_channel_is_tx() to consider the state of channels in other
packages.


Samuel Mendoza-Jonas (6):
  net/ncsi: Don't enable all channels when HWA available
  net/ncsi: Probe single packages to avoid conflict
  net/ncsi: Don't deselect package in suspend if active
  net/ncsi: Don't mark configured channels inactive
  net/ncsi: Reset channel state in ncsi_start_dev()
  net/ncsi: Configure multi-package, multi-channel modes with failover

 include/uapi/linux/ncsi.h |  15 ++
 net/ncsi/internal.h       |  19 +-
 net/ncsi/ncsi-aen.c       |  63 ++++--
 net/ncsi/ncsi-manage.c    | 453 +++++++++++++++++++++++++-------------
 net/ncsi/ncsi-netlink.c   | 229 ++++++++++++++++---
 net/ncsi/ncsi-rsp.c       |   2 +-
 6 files changed, 578 insertions(+), 203 deletions(-)

Comments

David Miller Oct. 23, 2018, 11:55 p.m. UTC | #1 
From: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Date: Wed, 24 Oct 2018 10:51:55 +1300

> This series extends the NCSI driver to configure multiple packages
> and/or channels simultaneously. Since the RFC series this includes a few
> extra changes to fix areas in the driver that either made this harder or
> were roadblocks due to deviations from the NCSI specification.
> 
> Patches 1 & 2 fix two issues where the driver made assumptions about the
> capabilities of the NCSI topology.
> Patches 3 & 4 change some internal semantics slightly to make multi-mode
> easier.
> Patch 5 introduces a cleaner way of reconfiguring the NCSI configuration
> and keeping track of channel states.
> Patch 6 implements the main multi-package/multi-channel configuration,
> configured via the Netlink interface.
> 
> Readers who have an interesting NCSI setup - especially multi-package
> with HWA - please test! I think I've covered all permutations but I
> don't have infinite hardware to test on.
> 
> Changes in v2:
> - Updated use of the channel lock in ncsi_reset_dev(), making the
> channel invisible and leaving the monitor check to
> ncsi_stop_channel_monitor().
> - Fixed ncsi_channel_is_tx() to consider the state of channels in other
> packages.

net-next is closed, please resubmit this when net-next opens back up.

Thank you.