| Message ID | cover.1690281940.git.petrm@nvidia.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | mlxsw: Speed up transceiver module EEPROM dump | expand |
Hello: This series was applied to netdev/net-next.git (main) by Jakub Kicinski <kuba@kernel.org>: On Tue, 25 Jul 2023 14:04:00 +0200 you wrote: > Ido Schimmel writes: > > Old firmware versions could only read up to 48 bytes from a transceiver > module's EEPROM in one go. Newer versions can read up to 128 bytes, > resulting in fewer transactions. > > Query support for the new capability during driver initialization and if > supported, read up to 128 bytes in one go. > > [...] Here is the summary with links: - [net-next,1/5] mlxsw: reg: Move 'mpsc' definition in 'mlxsw_reg_infos' https://git.kernel.org/netdev/net-next/c/68bf5100fadf - [net-next,2/5] mlxsw: reg: Add Management Capabilities Mask Register https://git.kernel.org/netdev/net-next/c/7447eda4065e - [net-next,3/5] mlxsw: reg: Remove unused function argument https://git.kernel.org/netdev/net-next/c/3930dcc5e404 - [net-next,4/5] mlxsw: reg: Increase Management Cable Info Access Register length https://git.kernel.org/netdev/net-next/c/c8dbf67883db - [net-next,5/5] mlxsw: core_env: Read transceiver module EEPROM in 128 bytes chunks https://git.kernel.org/netdev/net-next/c/1f4aea1f72da You are awesome, thank you!
Ido Schimmel writes: Old firmware versions could only read up to 48 bytes from a transceiver module's EEPROM in one go. Newer versions can read up to 128 bytes, resulting in fewer transactions. Query support for the new capability during driver initialization and if supported, read up to 128 bytes in one go. This is going to be especially useful for upcoming transceiver module firmware flashing support. Before: # perf stat -e devlink:devlink_hwmsg -- ethtool -m swp11 page 0x1 offset 128 length 128 i2c 0x50 [...] Performance counter stats for 'ethtool -m swp11 page 0x1 offset 128 length 128 i2c 0x50': 3 devlink:devlink_hwmsg After: # perf stat -e devlink:devlink_hwmsg -- ethtool -m swp11 page 0x1 offset 128 length 128 i2c 0x50 [...] Performance counter stats for 'ethtool -m swp11 page 0x1 offset 128 length 128 i2c 0x50': 1 devlink:devlink_hwmsg Patches #1-#4 are preparations / cleanups. Patch #5 adds support for the new read size. Amit Cohen (2): mlxsw: reg: Move 'mpsc' definition in 'mlxsw_reg_infos' mlxsw: reg: Add Management Capabilities Mask Register Ido Schimmel (3): mlxsw: reg: Remove unused function argument mlxsw: reg: Increase Management Cable Info Access Register length mlxsw: core_env: Read transceiver module EEPROM in 128 bytes chunks .../net/ethernet/mellanox/mlxsw/core_env.c | 45 ++++++--- drivers/net/ethernet/mellanox/mlxsw/reg.h | 93 ++++++++++++++++--- 2 files changed, 112 insertions(+), 26 deletions(-)