Le jeu. 7 mars 2024 à 16:51, Maciej Fijalkowski
<maciej.fijalkowski@xxxxxxxxx> a écrit :
>
> On Thu, Mar 07, 2024 at 03:24:02PM +0100, David Gouarin wrote:
> > Make it possible to bind a XDP socket to a queue id.
> > The DPAA FQ Id was passed to the XDP program in the XDP packet metadata
> > which made it unusable with bpf_map_redirect.
>
> I think that referring to a member from xdp_rxq_info struct as 'packet
> metadata' is confusing. I was trying to find a place where you are
> actually storing this id at xdp_buff::data_meta. This is not happening
> AFAICT. Thing is that xsk_rcv_check() picks xdp->rxq->queue_index which
> holds fqid which is not related to queue number, right?
Correct. I have used the term xdp metadata because that is the terminology
used in the xdp program (struct xdp_md).
I should have said instead :
The DPAA FQ Id was passed to the XDP program in the xdp_rxq_info->queue_index
instead of the queue number [...]
Maciej please forgive me for the double send and formatting mistakes,
kernel mailing lists are new to me.
>
> > Instead of the DPAA FQ Id, initialise the XDP rx queue with the channel id.
> >
> > Fixes: d57e57d0cd04 ("dpaa_eth: add XDP_TX support")
> >
> > Signed-off-by: David Gouarin <dgouarin@xxxxxxxxx>
> > ---
> > v2: add Fixes: in description
> > ---
> > drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> > index dcbc598b11c6..988dc9237368 100644
> > --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> > +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
> > @@ -1154,7 +1154,7 @@ static int dpaa_fq_init(struct dpaa_fq *dpaa_fq, bool td_enable)
> > if (dpaa_fq->fq_type == FQ_TYPE_RX_DEFAULT ||
> > dpaa_fq->fq_type == FQ_TYPE_RX_PCD) {
> > err = xdp_rxq_info_reg(&dpaa_fq->xdp_rxq, dpaa_fq->net_dev,
> > - dpaa_fq->fqid, 0);
> > + dpaa_fq->channel, 0);
> > if (err) {
> > dev_err(dev, "xdp_rxq_info_reg() = %d\n", err);
> > return err;
> > --
> > 2.34.1
> >
