| Message ID | 01487b8f5167d62649339469cdd0c6d8df885902.1605605531.git.lorenzo@kernel.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [net-next] net: netsec: add xdp tx return bulking support | expand |
On Tue, 17 Nov 2020 10:35:28 +0100 Lorenzo Bianconi wrote: > Convert netsec driver to xdp_return_frame_bulk APIs. > Rely on xdp_return_frame_rx_napi for XDP_TX in order to try to recycle > the page in the "in-irq" page_pool cache. > > Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> > Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> > --- > This patch is just compile tested, I have not carried out any run test Doesn't look like anyone will test this so applied, thanks!
Hi Jakub, On Fri, Nov 20, 2020 at 10:00:07AM -0800, Jakub Kicinski wrote: > On Tue, 17 Nov 2020 10:35:28 +0100 Lorenzo Bianconi wrote: > > Convert netsec driver to xdp_return_frame_bulk APIs. > > Rely on xdp_return_frame_rx_napi for XDP_TX in order to try to recycle > > the page in the "in-irq" page_pool cache. > > > > Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> > > Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> > > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> > > --- > > This patch is just compile tested, I have not carried out any run test > > Doesn't look like anyone will test this so applied, thanks! I had everything applied trying to test, but there was an issue with the PHY the socionext board uses [1]. In any case the patch looks correct, so you can keep it and I'll report any problems once I short the box out. [1] https://lore.kernel.org/netdev/20201017151132.GK456889@lunn.ch/T/ Cheers /Ilias
On Fri, 20 Nov 2020 20:07:13 +0200 Ilias Apalodimas wrote: > On Fri, Nov 20, 2020 at 10:00:07AM -0800, Jakub Kicinski wrote: > > On Tue, 17 Nov 2020 10:35:28 +0100 Lorenzo Bianconi wrote: > > > Convert netsec driver to xdp_return_frame_bulk APIs. > > > Rely on xdp_return_frame_rx_napi for XDP_TX in order to try to recycle > > > the page in the "in-irq" page_pool cache. > > > > > > Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> > > > Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> > > > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> > > > --- > > > This patch is just compile tested, I have not carried out any run test > > > > Doesn't look like anyone will test this so applied, thanks! > > I had everything applied trying to test, but there was an issue with the PHY the > socionext board uses [1]. FWIW feel free to send a note saying you need more time. > In any case the patch looks correct, so you can keep it and I'll report any > problems once I short the box out. Cool, fingers crossed :)
Hi Jakub, On Fri, Nov 20, 2020 at 10:14:34AM -0800, Jakub Kicinski wrote: > On Fri, 20 Nov 2020 20:07:13 +0200 Ilias Apalodimas wrote: > > On Fri, Nov 20, 2020 at 10:00:07AM -0800, Jakub Kicinski wrote: > > > On Tue, 17 Nov 2020 10:35:28 +0100 Lorenzo Bianconi wrote: > > > > Convert netsec driver to xdp_return_frame_bulk APIs. > > > > Rely on xdp_return_frame_rx_napi for XDP_TX in order to try to recycle > > > > the page in the "in-irq" page_pool cache. > > > > > > > > Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> > > > > Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> > > > > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> > > > > --- > > > > This patch is just compile tested, I have not carried out any run test > > > > > > Doesn't look like anyone will test this so applied, thanks! > > > > I had everything applied trying to test, but there was an issue with the PHY the > > socionext board uses [1]. > > FWIW feel free to send a note saying you need more time. > > > In any case the patch looks correct, so you can keep it and I'll report any > > problems once I short the box out. > > Cool, fingers crossed :) FWIW I did eventually test this. I can't see anything wrong with it. Cheers /Ilias
On Fri, 4 Dec 2020 16:07:54 +0200 Ilias Apalodimas wrote: > > > I had everything applied trying to test, but there was an issue with the PHY the > > > socionext board uses [1]. > > > > FWIW feel free to send a note saying you need more time. > > > > > In any case the patch looks correct, so you can keep it and I'll report any > > > problems once I short the box out. > > > > Cool, fingers crossed :) > > FWIW I did eventually test this. > I can't see anything wrong with it. Good to know, thank you!
diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index 1503cc9ec6e2..536aa8961dc6 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -631,6 +631,7 @@ static void netsec_set_rx_de(struct netsec_priv *priv, static bool netsec_clean_tx_dring(struct netsec_priv *priv) { struct netsec_desc_ring *dring = &priv->desc_ring[NETSEC_RING_TX]; + struct xdp_frame_bulk bq; struct netsec_de *entry; int tail = dring->tail; unsigned int bytes; @@ -639,8 +640,11 @@ static bool netsec_clean_tx_dring(struct netsec_priv *priv) spin_lock(&dring->lock); bytes = 0; + xdp_frame_bulk_init(&bq); entry = dring->vaddr + DESC_SZ * tail; + rcu_read_lock(); /* need for xdp_return_frame_bulk */ + while (!(entry->attr & (1U << NETSEC_TX_SHIFT_OWN_FIELD)) && cnt < DESC_NUM) { struct netsec_desc *desc; @@ -665,7 +669,10 @@ static bool netsec_clean_tx_dring(struct netsec_priv *priv) dev_kfree_skb(desc->skb); } else { bytes += desc->xdpf->len; - xdp_return_frame(desc->xdpf); + if (desc->buf_type == TYPE_NETSEC_XDP_TX) + xdp_return_frame_rx_napi(desc->xdpf); + else + xdp_return_frame_bulk(desc->xdpf, &bq); } next: /* clean up so netsec_uninit_pkt_dring() won't free the skb @@ -684,6 +691,9 @@ static bool netsec_clean_tx_dring(struct netsec_priv *priv) entry = dring->vaddr + DESC_SZ * tail; cnt++; } + xdp_flush_frame_bulk(&bq); + + rcu_read_unlock(); spin_unlock(&dring->lock);