From ee2a3bdef94bf823483ca237552aad7bd374baa0 Mon Sep 17 00:00:00 2001 From: Robert-Ionut Alexa Date: Tue, 18 Oct 2022 17:18:58 +0300 Subject: [PATCH] net: dpaa2-eth: create and export the dpaa2_eth_receive_skb() function Carve out code from the dpaa2_eth_rx() function in order to create and export the dpaa2_eth_receive_skb() function. Do this in order to reuse this code also from the XSK path which will be introduced in a later patch. Signed-off-by: Robert-Ionut Alexa Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 84 +++++++++++++----------- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 12 ++++ 2 files changed, 59 insertions(+), 37 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 9909fdf..0b21a3e 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -523,11 +523,53 @@ static struct sk_buff *dpaa2_eth_copybreak(struct dpaa2_eth_channel *ch, return dpaa2_eth_alloc_skb(priv, ch, fd, fd_length, fd_vaddr); } +void dpaa2_eth_receive_skb(struct dpaa2_eth_priv *priv, + struct dpaa2_eth_channel *ch, + const struct dpaa2_fd *fd, void *vaddr, + struct dpaa2_eth_fq *fq, + struct rtnl_link_stats64 *percpu_stats, + struct sk_buff *skb) +{ + struct dpaa2_fas *fas; + u32 status = 0; + + fas = dpaa2_get_fas(vaddr, false); + prefetch(fas); + prefetch(skb->data); + + /* Get the timestamp value */ + if (priv->rx_tstamp) { + struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); + __le64 *ts = dpaa2_get_ts(vaddr, false); + u64 ns; + + memset(shhwtstamps, 0, sizeof(*shhwtstamps)); + + ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts); + shhwtstamps->hwtstamp = ns_to_ktime(ns); + } + + /* Check if we need to validate the L4 csum */ + if (likely(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV)) { + status = le32_to_cpu(fas->status); + dpaa2_eth_validate_rx_csum(priv, status, skb); + } + + skb->protocol = eth_type_trans(skb, priv->net_dev); + skb_record_rx_queue(skb, fq->flowid); + + percpu_stats->rx_packets++; + percpu_stats->rx_bytes += dpaa2_fd_get_len(fd); + ch->stats.bytes_per_cdan += dpaa2_fd_get_len(fd); + + list_add_tail(&skb->list, ch->rx_list); +} + /* Main Rx frame processing routine */ -static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, - struct dpaa2_eth_channel *ch, - const struct dpaa2_fd *fd, - struct dpaa2_eth_fq *fq) +void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, + struct dpaa2_eth_channel *ch, + const struct dpaa2_fd *fd, + struct dpaa2_eth_fq *fq) { dma_addr_t addr = dpaa2_fd_get_addr(fd); u8 fd_format = dpaa2_fd_get_format(fd); @@ -536,9 +578,7 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, struct rtnl_link_stats64 *percpu_stats; struct dpaa2_eth_drv_stats *percpu_extras; struct device *dev = priv->net_dev->dev.parent; - struct dpaa2_fas *fas; void *buf_data; - u32 status = 0; u32 xdp_act; /* Tracing point */ @@ -548,8 +588,6 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, dma_sync_single_for_cpu(dev, addr, priv->rx_buf_size, DMA_BIDIRECTIONAL); - fas = dpaa2_get_fas(vaddr, false); - prefetch(fas); buf_data = vaddr + dpaa2_fd_get_offset(fd); prefetch(buf_data); @@ -587,35 +625,7 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, if (unlikely(!skb)) goto err_build_skb; - prefetch(skb->data); - - /* Get the timestamp value */ - if (priv->rx_tstamp) { - struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); - __le64 *ts = dpaa2_get_ts(vaddr, false); - u64 ns; - - memset(shhwtstamps, 0, sizeof(*shhwtstamps)); - - ns = DPAA2_PTP_CLK_PERIOD_NS * le64_to_cpup(ts); - shhwtstamps->hwtstamp = ns_to_ktime(ns); - } - - /* Check if we need to validate the L4 csum */ - if (likely(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV)) { - status = le32_to_cpu(fas->status); - dpaa2_eth_validate_rx_csum(priv, status, skb); - } - - skb->protocol = eth_type_trans(skb, priv->net_dev); - skb_record_rx_queue(skb, fq->flowid); - - percpu_stats->rx_packets++; - percpu_stats->rx_bytes += dpaa2_fd_get_len(fd); - ch->stats.bytes_per_cdan += dpaa2_fd_get_len(fd); - - list_add_tail(&skb->list, ch->rx_list); - + dpaa2_eth_receive_skb(priv, ch, fd, vaddr, fq, percpu_stats, skb); return; err_build_skb: diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 7c46ec3..3c4fc46 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -796,4 +796,16 @@ struct sk_buff *dpaa2_eth_alloc_skb(struct dpaa2_eth_priv *priv, struct dpaa2_eth_channel *ch, const struct dpaa2_fd *fd, u32 fd_length, void *fd_vaddr); + +void dpaa2_eth_receive_skb(struct dpaa2_eth_priv *priv, + struct dpaa2_eth_channel *ch, + const struct dpaa2_fd *fd, void *vaddr, + struct dpaa2_eth_fq *fq, + struct rtnl_link_stats64 *percpu_stats, + struct sk_buff *skb); + +void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, + struct dpaa2_eth_channel *ch, + const struct dpaa2_fd *fd, + struct dpaa2_eth_fq *fq); #endif /* __DPAA2_H */ -- 2.7.4