[dpdk-stable] [19.11 PATCH] net/i40e: support 25G AOC/ACC cables

[Christian Ehrhardt]

On Mon, Sep 6, 2021 at 9:32 AM <christian.ehrhardt at canonical.com> wrote:
>
> From: Yury Kylulin <yury.kylulin at intel.com>
>
> [ upstream commit b1daa3461429e7674206a714c17adca65e9b44b4 ]

FYI - this commit is in 21.05 but was initially not targettet at stable at dpdk.
In some tests (the linked bug) it was found that it resolves issues with newer
hardware and therefore I did the backport (no changes) and submitted it here
for discussion.

It might be too late for 20.11.3/19.11.10 which are supposed to
release today, but we could queue them right away.
I'm mostly interested in feedback from the Authors if they think this
could be an issue (e.g. due to unidentified dependencies).

> Enable additional PHY types (25G-AOC and 25G-ACC) for set PHY config
> command.
>
> Ubuntu bug: https://bugs.launchpad.net/ubuntu/+source/dpdk/+bug/1940957
> Cc: stable at dpdk.org
>
> Signed-off-by: Yury Kylulin <yury.kylulin at intel.com>
> Tested-by: Ashish Paul <apaul at juniper.net>
> Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
> ---
>  drivers/net/i40e/i40e_ethdev.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index 508f90595f..0c896ea915 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -2264,7 +2264,8 @@ i40e_phy_conf_link(struct i40e_hw *hw,
>         phy_conf.phy_type = is_up ? cpu_to_le32(phy_type_mask) : 0;
>         phy_conf.phy_type_ext = is_up ? (I40E_AQ_PHY_TYPE_EXT_25G_KR |
>                 I40E_AQ_PHY_TYPE_EXT_25G_CR | I40E_AQ_PHY_TYPE_EXT_25G_SR |
> -               I40E_AQ_PHY_TYPE_EXT_25G_LR) : 0;
> +               I40E_AQ_PHY_TYPE_EXT_25G_LR | I40E_AQ_PHY_TYPE_EXT_25G_AOC |
> +               I40E_AQ_PHY_TYPE_EXT_25G_ACC) : 0;
>         phy_conf.fec_config = phy_ab.fec_cfg_curr_mod_ext_info;
>         phy_conf.eee_capability = phy_ab.eee_capability;
>         phy_conf.eeer = phy_ab.eeer_val;
> --
> 2.32.0
>


-- 
Christian Ehrhardt
Staff Engineer, Ubuntu Server
Canonical Ltd