diff options
author | Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2020-02-20 09:41:55 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2020-02-20 10:09:25 -0800 |
commit | 458de8a97f107e1b6120d608b93ae9e3de019a2e (patch) | |
tree | c5a4fb4e4bb915ff29b7f65b2d49e8ba651dc1d1 /drivers/net/ethernet | |
parent | 78c9df81168fb9b81c346c4697a05f28ed862354 (diff) |
net: page_pool: API cleanup and comments
Functions starting with __ usually indicate those which are exported,
but should not be called directly. Update some of those declared in the
API and make it more readable.
page_pool_unmap_page() and page_pool_release_page() were doing
exactly the same thing calling __page_pool_clean_page(). Let's
rename __page_pool_clean_page() to page_pool_release_page() and
export it in order to show up on perf logs and get rid of
page_pool_unmap_page().
Finally rename __page_pool_put_page() to page_pool_put_page() since we
can now directly call it from drivers and rename the existing
page_pool_put_page() to page_pool_put_full_page() since they do the same
thing but the latter is trying to sync the full DMA area.
This patch also updates netsec, mvneta and stmmac drivers which use
those functions.
Suggested-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 19 | ||||
-rw-r--r-- | drivers/net/ethernet/socionext/netsec.c | 23 | ||||
-rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 |
3 files changed, 22 insertions, 24 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 8e1feb678cea..1c391f63a26f 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1956,7 +1956,7 @@ static void mvneta_rxq_drop_pkts(struct mvneta_port *pp, if (!data || !(rx_desc->buf_phys_addr)) continue; - page_pool_put_page(rxq->page_pool, data, false); + page_pool_put_full_page(rxq->page_pool, data, false); } if (xdp_rxq_info_is_reg(&rxq->xdp_rxq)) xdp_rxq_info_unreg(&rxq->xdp_rxq); @@ -2154,9 +2154,9 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, err = xdp_do_redirect(pp->dev, xdp, prog); if (err) { ret = MVNETA_XDP_DROPPED; - __page_pool_put_page(rxq->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(rxq->page_pool, + virt_to_head_page(xdp->data), len, + true); } else { ret = MVNETA_XDP_REDIR; stats->xdp_redirect++; @@ -2166,9 +2166,9 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, case XDP_TX: ret = mvneta_xdp_xmit_back(pp, xdp); if (ret != MVNETA_XDP_TX) - __page_pool_put_page(rxq->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(rxq->page_pool, + virt_to_head_page(xdp->data), len, + true); break; default: bpf_warn_invalid_xdp_action(act); @@ -2177,9 +2177,8 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, trace_xdp_exception(pp->dev, prog, act); /* fall through */ case XDP_DROP: - __page_pool_put_page(rxq->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(rxq->page_pool, + virt_to_head_page(xdp->data), len, true); ret = MVNETA_XDP_DROPPED; stats->xdp_drop++; break; diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index 6266926fe054..58b9b7ce7195 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -896,9 +896,9 @@ static u32 netsec_run_xdp(struct netsec_priv *priv, struct bpf_prog *prog, case XDP_TX: ret = netsec_xdp_xmit_back(priv, xdp); if (ret != NETSEC_XDP_TX) - __page_pool_put_page(dring->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(dring->page_pool, + virt_to_head_page(xdp->data), len, + true); break; case XDP_REDIRECT: err = xdp_do_redirect(priv->ndev, xdp, prog); @@ -906,9 +906,9 @@ static u32 netsec_run_xdp(struct netsec_priv *priv, struct bpf_prog *prog, ret = NETSEC_XDP_REDIR; } else { ret = NETSEC_XDP_CONSUMED; - __page_pool_put_page(dring->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(dring->page_pool, + virt_to_head_page(xdp->data), len, + true); } break; default: @@ -919,9 +919,8 @@ static u32 netsec_run_xdp(struct netsec_priv *priv, struct bpf_prog *prog, /* fall through -- handle aborts by dropping packet */ case XDP_DROP: ret = NETSEC_XDP_CONSUMED; - __page_pool_put_page(dring->page_pool, - virt_to_head_page(xdp->data), - len, true); + page_pool_put_page(dring->page_pool, + virt_to_head_page(xdp->data), len, true); break; } @@ -1020,8 +1019,8 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget) * cache state. Since we paid the allocation cost if * building an skb fails try to put the page into cache */ - __page_pool_put_page(dring->page_pool, page, - pkt_len, true); + page_pool_put_page(dring->page_pool, page, pkt_len, + true); netif_err(priv, drv, priv->ndev, "rx failed to build skb\n"); break; @@ -1195,7 +1194,7 @@ static void netsec_uninit_pkt_dring(struct netsec_priv *priv, int id) if (id == NETSEC_RING_RX) { struct page *page = virt_to_page(desc->addr); - page_pool_put_page(dring->page_pool, page, false); + page_pool_put_full_page(dring->page_pool, page, false); } else if (id == NETSEC_RING_TX) { dma_unmap_single(priv->dev, desc->dma_addr, desc->len, DMA_TO_DEVICE); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 5836b21edd7e..37920b4da091 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1251,11 +1251,11 @@ static void stmmac_free_rx_buffer(struct stmmac_priv *priv, u32 queue, int i) struct stmmac_rx_buffer *buf = &rx_q->buf_pool[i]; if (buf->page) - page_pool_put_page(rx_q->page_pool, buf->page, false); + page_pool_put_full_page(rx_q->page_pool, buf->page, false); buf->page = NULL; if (buf->sec_page) - page_pool_put_page(rx_q->page_pool, buf->sec_page, false); + page_pool_put_full_page(rx_q->page_pool, buf->sec_page, false); buf->sec_page = NULL; } |