Re: [PATCH v3 4/6] net/nfb: use process private variable for internal data

[Stephen Hemminger <stephen@networkplumber.org>]

On Fri, 16 Jan 2026 16:20:55 +0100
spinler@cesnet.cz wrote:

> From: Martin Spinler <spinler@cesnet.cz>
> 
> Internal structures of libnfb can't be shared between processes.
> Move these structures from dev_private to process_private, which allows
> secondary process to correctly initialize and uninitialize the eth_dev.
> 
> Signed-off-by: Martin Spinler <spinler@cesnet.cz>
> ---
>  drivers/net/nfb/nfb.h        |  2 +
>  drivers/net/nfb/nfb_ethdev.c | 99 +++++++++++++++++++++---------------
>  drivers/net/nfb/nfb_rx.c     |  2 +-
>  drivers/net/nfb/nfb_rxmode.c | 12 ++---
>  drivers/net/nfb/nfb_tx.c     |  2 +-
>  5 files changed, 67 insertions(+), 50 deletions(-)
> 
> diff --git a/drivers/net/nfb/nfb.h b/drivers/net/nfb/nfb.h
> index 917b830283..09d4b7da5f 100644
> --- a/drivers/net/nfb/nfb.h
> +++ b/drivers/net/nfb/nfb.h
> @@ -48,7 +48,9 @@ struct pmd_internals {
>  	struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC];
>  	struct nc_txmac *txmac[RTE_MAX_NC_TXMAC];
>  	struct nfb_device *nfb;
> +};
>  
> +struct pmd_priv {
>  	uint16_t max_rx_queues;
>  	uint16_t max_tx_queues;
>  };

Where does max_rx_queues get populated in the secondary process?
What if either process calls configure to change number of queues?

Don't see other drivers splitting structure here.