[dpdk-dev] [PATCH v3 0/5] mlx5: add timestamp format support
Raslan Darawsheh
rasland at nvidia.com
Tue Mar 16 15:51:48 CET 2021
Hi,
> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> Sent: Sunday, March 14, 2021 2:13 PM
> To: dev at dpdk.org
> Cc: Raslan Darawsheh <rasland at nvidia.com>; Matan Azrad
> <matan at nvidia.com>; Ori Kam <orika at nvidia.com>
> Subject: [PATCH v3 0/5] mlx5: add timestamp format support
>
> There are two different timestamp formats can be provided potentially
> by mlx5 supported hardware.
>
> The free-running format provides some opaque values captured from
> internal clock counter clocked by some independent oscillator.
> The free-running frequency is not pre-defined and should be queried
> from the NIC.
>
> The real-time timestamps are presented in nanoseconds and captured from
> the dedicated UTC counter, that can be adjusted on the fly and might be
> synchronized with some external master clock.
>
> Depending on the version and configuration the hardware might support
> either FR or RT timestamps, or both in the same time on per queue basis.
> Since firmware version xx.30.0256 the timestamp format can be configured
> via fields in the queue context at the object creation time. For the
> compatibility reasons the default zero value configures timestamps with
> free-running format. The NIC ConnectX-5 and earlier ones support the
> free-running format only. Since ConnectX-6 both formats might be
> supported
> and configured. The default zero value (specified in the non-defined
> yet timestamp format context field) causes the queue creation failure
> (rejected by firmware) if the NIC is configured to real-time timestamp
> format.
>
> Hence, it is crucial to check whether firmware/hardware supports
> timestamp formats and configure queues accordingly, and this patchset
> also must be provided for stable DPDK releases.
>
> Compatibility affected (without this patchset) summary:
> - ConnectX-6DX or BlueField 2
> - real-time format is configured in NV settings
> - firmware is xx.30.1000 or higher
>
> Viacheslav Ovsiienko (5):
> common/mlx5: add timestamp format support to DevX
> net/mlx5: add timestamp format support
> vdpa/mlx5: add timestamp format support
> regex/mlx5: add timestamp format support
> compress/mlx5: add timestamp format support
>
> drivers/common/mlx5/mlx5_devx_cmds.c | 35 ++++++++++++++--
> drivers/common/mlx5/mlx5_devx_cmds.h | 7 ++++
> drivers/common/mlx5/mlx5_prm.h | 55 +++++++++++++++++++++++-
> -
> drivers/compress/mlx5/mlx5_compress.c | 3 ++
> drivers/net/mlx5/linux/mlx5_os.c | 3 ++
> drivers/net/mlx5/mlx5.h | 3 ++
> drivers/net/mlx5/mlx5_devx.c | 2 +-
> drivers/net/mlx5/mlx5_flow_age.c | 7 +++-
> drivers/net/mlx5/mlx5_txpp.c | 2 +
> drivers/net/mlx5/windows/mlx5_os.c | 3 ++
> drivers/regex/mlx5/mlx5_regex.c | 1 +
> drivers/regex/mlx5/mlx5_regex.h | 1 +
> drivers/regex/mlx5/mlx5_regex_control.c | 1 +
> drivers/vdpa/mlx5/mlx5_vdpa.c | 1 +
> drivers/vdpa/mlx5/mlx5_vdpa.h | 1 +
> drivers/vdpa/mlx5/mlx5_vdpa_event.c | 2 +
> 16 files changed, 117 insertions(+), 10 deletions(-)
>
> --
> v1: https://inbox.dpdk.org/dev/20210307100251.22538-1-
> viacheslavo at nvidia.com/
> v2: - remove non needed settings for hairpins
> - the unified inline routine to set timestamp format
> - typos and rewording commit messages
> v3: - fix minor typo bug (, -> ;) in code
> - add missed v3 tag
>
> --
> 2.28.0
Series applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
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