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[ Upstream commit c797ce168930ce3d62a9b7fc4d7040963ee6a01e ]
Background:
1. CONFIG_NCSI_OEM_CMD_KEEP_PHY
If this is enabled, we send an extra OEM Intel command in the probe
sequence immediately after discovering a channel (e.g. after "Clear
Initial State").
2. CONFIG_NCSI_OEM_CMD_GET_MAC
If this is enabled, we send one of 3 OEM "Get MAC Address" commands from
Broadcom, Mellanox (Nvidida), and Intel in the *configuration* sequence
for a channel.
3. mellanox,multi-host (or mlx,multi-host)
Introduced by this patch:
https://lore.kernel.org/all/20200108234341.2590674-1-vijaykhemka@fb.com/
Which was actually originally from cosmo.chou@quantatw.com:
9f132a10ec
Cosmo claimed that the Nvidia ConnectX-4 and ConnectX-6 NIC's don't
respond to Get Version ID, et. al in the probe sequence unless you send
the Set MC Affinity command first.
Problem Statement:
We've been using a combination of #ifdef code blocks and IS_ENABLED()
conditions to conditionally send these OEM commands.
It makes adding any new code around these commands hard to understand.
Solution:
In this patch, I just want to remove the conditionally compiled blocks
of code, and always use IS_ENABLED(...) to do dynamic control flow.
I don't think the small amount of code this adds to non-users of the OEM
Kconfigs is a big deal.
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: e85e271dec02 ("net/ncsi: Fix the multi thread manner of NCSI driver")
Signed-off-by: Sasha Levin <sashal@kernel.org>
7329bc66b4