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Date: Wed, 19 Jun 2024 16:41:52 +0100
From: Bruce Richardson <bruce.richardson@intel.com>
To: Anatoly Burakov <anatoly.burakov@intel.com>
CC: <dev@dpdk.org>, Ian Stokes <ian.stokes@intel.com>, Przemek Kitszel
<przemyslaw.kitszel@intel.com>
Subject: Re: [PATCH v2 030/148] net/ice/base: limit PF RSS LUT to one VSI at
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On Wed, Jun 12, 2024 at 04:00:24PM +0100, Anatoly Burakov wrote:
> From: Ian Stokes <ian.stokes@intel.com>
>
> Allow only one VSI to alloc the PF RSS LUT.
>
> Shared part consists of just a new field, actual implementation will use
> `rss_locks` to serialize the access. Take advantage of the fact that VSI #0 is
> main VSI for PF, what is the default PF LUT holder, so zero-init of struct
> ice_hw sets it as designed.
>
> Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
> ---
> drivers/net/ice/base/ice_type.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
> index 48f892bfd3..1e133bb1a6 100644
> --- a/drivers/net/ice/base/ice_type.h
> +++ b/drivers/net/ice/base/ice_type.h
> @@ -1394,6 +1394,7 @@ struct ice_hw {
> ice_declare_bitmap(fdir_perfect_fltr, ICE_FLTR_PTYPE_MAX);
> struct ice_lock rss_locks; /* protect RSS configuration */
> struct LIST_HEAD_TYPE rss_list_head;
> + u16 vsi_owning_pf_lut; /* SW IDX of VSI that acquired PF RSS LUT */
> ice_declare_bitmap(hw_ptype, ICE_FLOW_PTYPE_MAX);
> u8 dvm_ena;
> u16 io_expander_handle;
> --
This is a one-line change, so can probably be merged into some other patch,
rather than needing a whole commit on its own.
/Bruce