Thread (7 messages) 7 messages, 3 authors, 2022-02-14

Re: [PATCH v7 net-next 0/4] use bulk reads for ocelot statistics

From: patchwork-bot+netdevbpf@kernel.org
Date: 2022-02-14 13:40:17
Also in: lkml

Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller [off-list ref]:

On Sun, 13 Feb 2022 11:12:50 -0800 you wrote:
Ocelot loops over memory regions to gather stats on different ports.
These regions are mostly continuous, and are ordered. This patch set
uses that information to break the stats reads into regions that can get
read in bulk.

The motiviation is for general cleanup, but also for SPI. Performing two
back-to-back reads on a SPI bus require toggling the CS line, holding,
re-toggling the CS line, sending 3 address bytes, sending N padding
bytes, then actually performing the read. Bulk reads could reduce almost
all of that overhead, but require that the reads are performed via
regmap_bulk_read.

[...]
Here is the summary with links:
  - [v7,net-next,1/4] net: mscc: ocelot: remove unnecessary stat reading from ethtool
    https://git.kernel.org/netdev/net-next/c/e27d785e60b6
  - [v7,net-next,2/4] net: ocelot: align macros for consistency
    https://git.kernel.org/netdev/net-next/c/65c53595bc2a
  - [v7,net-next,3/4] net: mscc: ocelot: add ability to perform bulk reads
    https://git.kernel.org/netdev/net-next/c/40f3a5c81555
  - [v7,net-next,4/4] net: mscc: ocelot: use bulk reads for stats
    https://git.kernel.org/netdev/net-next/c/d87b1c08f38a

You are awesome, thank you!
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