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Date: Thu, 8 Nov 2018 13:49:03 +1100 From: Samuel Mendoza-Jonas <sam@...dozajonas.com> To: netdev@...r.kernel.org Cc: Samuel Mendoza-Jonas <sam@...dozajonas.com>, "David S . Miller" <davem@...emloft.net>, Justin.Lee1@...l.com, linux-kernel@...r.kernel.org, openbmc@...ts.ozlabs.org Subject: [PATCH net-next v3 0/6] net/ncsi: Allow enabling multiple packages & channels 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. Changes in v3: - Fixed bisectability bug in patch 1 - Consider channels on all packages in a few places when multi-package is enabled. - Avoid doubling up reset operations, and check the current driver state before reset to let any running operations complete. - Reorganise the LSC handler slightly to avoid enabling Tx twice. 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 | 72 ++++-- net/ncsi/ncsi-manage.c | 511 ++++++++++++++++++++++++++------------ net/ncsi/ncsi-netlink.c | 233 ++++++++++++++--- net/ncsi/ncsi-rsp.c | 2 +- 6 files changed, 646 insertions(+), 206 deletions(-) -- 2.19.1
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