linux_dsm_epyc7002/net/ncsi
Samuel Mendoza-Jonas 8d951a75d0 net/ncsi: Configure multi-package, multi-channel modes with failover
This patch extends the ncsi-netlink interface with two new commands and
three new attributes to configure multiple packages and/or channels at
once, and configure specific failover modes.

NCSI_CMD_SET_PACKAGE mask and NCSI_CMD_SET_CHANNEL_MASK set a whitelist
of packages or channels allowed to be configured with the
NCSI_ATTR_PACKAGE_MASK and NCSI_ATTR_CHANNEL_MASK attributes
respectively. If one of these whitelists is set only packages or
channels matching the whitelist are considered for the channel queue in
ncsi_choose_active_channel().

These commands may also use the NCSI_ATTR_MULTI_FLAG to signal that
multiple packages or channels may be configured simultaneously. NCSI
hardware arbitration (HWA) must be available in order to enable
multi-package mode. Multi-channel mode is always available.

If the NCSI_ATTR_CHANNEL_ID attribute is present in the
NCSI_CMD_SET_CHANNEL_MASK command the it sets the preferred channel as
with the NCSI_CMD_SET_INTERFACE command. The combination of preferred
channel and channel whitelist defines a primary channel and the allowed
failover channels.
If the NCSI_ATTR_MULTI_FLAG attribute is also present then the preferred
channel is configured for Tx/Rx and the other channels are enabled only
for Rx.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-17 21:09:49 -08:00
..
internal.h net/ncsi: Configure multi-package, multi-channel modes with failover 2018-11-17 21:09:49 -08:00
Kconfig net/ncsi: Add NCSI Broadcom OEM command 2018-10-17 22:14:54 -07:00
Makefile net/ncsi: Add generic netlink family 2018-03-05 10:43:37 -05:00
ncsi-aen.c net/ncsi: Configure multi-package, multi-channel modes with failover 2018-11-17 21:09:49 -08:00
ncsi-cmd.c net/ncsi: Extend NC-SI Netlink interface to allow user space to send NC-SI command 2018-10-15 22:00:59 -07:00
ncsi-manage.c net/ncsi: Configure multi-package, multi-channel modes with failover 2018-11-17 21:09:49 -08:00
ncsi-netlink.c net/ncsi: Configure multi-package, multi-channel modes with failover 2018-11-17 21:09:49 -08:00
ncsi-netlink.h net/ncsi: Extend NC-SI Netlink interface to allow user space to send NC-SI command 2018-10-15 22:00:59 -07:00
ncsi-pkt.h net/ncsi: Add NCSI Broadcom OEM command 2018-10-17 22:14:54 -07:00
ncsi-rsp.c net/ncsi: Configure multi-package, multi-channel modes with failover 2018-11-17 21:09:49 -08:00