| Message ID | 20210311122416.2620300-1-idosch@idosch.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | mlxsw: Implement sampling using mirroring | expand |
Hello: This series was applied to netdev/net-next.git (refs/heads/master): On Thu, 11 Mar 2021 14:24:10 +0200 you wrote: > From: Ido Schimmel <idosch@nvidia.com> > > So far, sampling was implemented using a dedicated sampling mechanism > that is available on all Spectrum ASICs. Spectrum-2 and later ASICs > support sampling by mirroring packets to the CPU port with probability. > This method has a couple of advantages compared to the legacy method: > > [...] Here is the summary with links: - [net-next,1/6] mlxsw: spectrum_span: Add SPAN session identifier support https://git.kernel.org/netdev/net-next/c/5c7659eba873 - [net-next,2/6] mlxsw: reg: Extend mirroring registers with probability rate field https://git.kernel.org/netdev/net-next/c/fa3faeb7aedb - [net-next,3/6] mlxsw: spectrum_span: Add SPAN probability rate support https://git.kernel.org/netdev/net-next/c/2dcbd9207b33 - [net-next,4/6] mlxsw: spectrum_matchall: Split sampling support between ASICs https://git.kernel.org/netdev/net-next/c/20afb9bc480d - [net-next,5/6] mlxsw: spectrum_trap: Split sampling traps between ASICs https://git.kernel.org/netdev/net-next/c/34a277212c67 - [net-next,6/6] mlxsw: spectrum_matchall: Implement sampling using mirroring https://git.kernel.org/netdev/net-next/c/cf31190ae0b7 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
From: Ido Schimmel <idosch@nvidia.com> So far, sampling was implemented using a dedicated sampling mechanism that is available on all Spectrum ASICs. Spectrum-2 and later ASICs support sampling by mirroring packets to the CPU port with probability. This method has a couple of advantages compared to the legacy method: * Extra metadata per-packet: Egress port, egress traffic class, traffic class occupancy and end-to-end latency * Ability to sample packets on egress / per-flow as opposed to only ingress This series should not result in any user-visible changes and its aim is to convert Spectrum-2 and later ASICs to perform sampling by mirroring to the CPU port with probability. Future submissions will expose the additional metadata and enable sampling using more triggers (e.g., egress). Series overview: Patches #1-#3 extend the SPAN (mirroring) module to accept new parameters required for sampling. See individual commit messages for detailed explanation. Patch #4-#5 split sampling support between Spectrum-1 and later ASIC while still using the legacy method for all ASIC generations. Patch #6 converts Spectrum-2 and later ASICs to perform sampling by mirroring to the CPU port with probability. Ido Schimmel (6): mlxsw: spectrum_span: Add SPAN session identifier support mlxsw: reg: Extend mirroring registers with probability rate field mlxsw: spectrum_span: Add SPAN probability rate support mlxsw: spectrum_matchall: Split sampling support between ASICs mlxsw: spectrum_trap: Split sampling traps between ASICs mlxsw: spectrum_matchall: Implement sampling using mirroring drivers/net/ethernet/mellanox/mlxsw/reg.h | 17 +++- .../net/ethernet/mellanox/mlxsw/spectrum.c | 3 + .../net/ethernet/mellanox/mlxsw/spectrum.h | 12 +++ .../mellanox/mlxsw/spectrum_matchall.c | 86 ++++++++++++++++++- .../ethernet/mellanox/mlxsw/spectrum_qdisc.c | 5 +- .../ethernet/mellanox/mlxsw/spectrum_span.c | 21 ++++- .../ethernet/mellanox/mlxsw/spectrum_span.h | 16 ++++ .../ethernet/mellanox/mlxsw/spectrum_trap.c | 43 +++++++--- 8 files changed, 181 insertions(+), 22 deletions(-)