Public bug reported:
[IMPACT]
Add support for 200Gbps per lane link modes to the mlx5 driver in
linux-bluefield-6.8. This is a new Ethernet technology that enables higher
bandwidth configurations: 200Gbps (1-lane), 400Gbps (2-lane), 800Gbps (4-lane),
and 1600Gbps (8-lane). To port the three primary commits (4897f9b7f8bd
"ethtool: Add support for 200Gbps per lane link modes", ee0a4fc396f1 "net/mlx5:
Add support for 200Gbps per lane link modes", and 4e343c11efbb "net/mlx5e:
Support FEC settings for 200G per lane link modes"), several prerequisite
commits were required to maintain proper ethtool UAPI compatibility, FEC
infrastructure, and support for related 100G per lane and 800G link modes.
Additionally, a fix commit (6d0477d0d067 "net/mlx5e: Fix missing FEC RS stats
for RS_544_514_INTERLEAVED_QUAD") was included to address a stats handling gap
introduced in 4e343c11efbb.
[FIX]
Ported eight upstream commits in dependency order:
2c1583290b08 - Adds 10baseT1BRR link mode; prerequisite for ethtool UAPI
compatibility as it increments ETHTOOL_LINK_MODE_MASK_NBITS
4897f9b7f8bd - Adds ethtool UAPI bits for 200Gbps per lane link modes (200G/1x,
400G/2x, 800G/4x, 1600G/8x)
8c54c89ad45a - Adds mlx5 driver support for 800Gbps link mode using 100G per
lane technology
d4383ce15f5b - Refactors FEC capability checking into
mlx5e_is_fec_supported_link_mode() function; prerequisite for FEC support
4aafb8ab2a62 - Adds FEC configuration support for 100G per lane link modes
ee0a4fc396f1 - Adds mlx5 driver support for 200Gbps per lane link modes
(hardware detection, ethtool mappings, port configurations)
4e343c11efbb - Adds FEC configuration support for 200G per lane link modes
(RS-544-514-INTERLEAVED-QUAD algorithm)
6d0477d0d067 - Fixes missing FEC RS stats handling for
RS_544_514_INTERLEAVED_QUAD introduced in 4e343c11efbb
[TEST CASE]
Successfully compiled on linux-bluefield-6.8, master-next branch.
[Regression Potential]
Low risk. All commits are upstream commits and were cherry picked without
conflicts.
** Affects: linux-bluefield (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2130222
Title:
Ubuntu 24.04 - Noble: Port 200G/lane patches for linux-bluefield-6.8
Kernel
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