Re: [PATCH net-next 17/18] ionic: Add RSS support

[Jakub Kicinski]

On Thu, 20 Jun 2019 13:24:23 -0700, Shannon Nelson wrote:
> +static int ionic_lif_rss_init(struct lif *lif)
> +{
> +     static const u8 toeplitz_symmetric_key[] = {
> +             0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
> +             0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
> +             0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
> +             0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
> +             0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
> +     };

netdev_rss_key_fill()

> +     unsigned int i, tbl_sz;
> +
> +     lif->rss_types = IONIC_RSS_TYPE_IPV4     |
> +                      IONIC_RSS_TYPE_IPV4_TCP |
> +                      IONIC_RSS_TYPE_IPV4_UDP |
> +                      IONIC_RSS_TYPE_IPV6     |
> +                      IONIC_RSS_TYPE_IPV6_TCP |
> +                      IONIC_RSS_TYPE_IPV6_UDP;
> +
> +     /* Fill indirection table with 'default' values */
> +     tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
> +     for (i = 0; i < tbl_sz; i++)
> +             lif->rss_ind_tbl[i] = i % lif->nxqs;

ethtool_rxfh_indir_default()

> +     return ionic_lif_rss_config(lif, lif->rss_types,
> +                                 toeplitz_symmetric_key, NULL);
> +}