diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0267-net-mscc-ocelot-convert-to-use-ocelot_port_add_txtst.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0267-net-mscc-ocelot-convert-to-use-ocelot_port_add_txtst.patch | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0267-net-mscc-ocelot-convert-to-use-ocelot_port_add_txtst.patch b/target/linux/layerscape/patches-5.4/701-net-0267-net-mscc-ocelot-convert-to-use-ocelot_port_add_txtst.patch new file mode 100644 index 0000000000..988c90e79d --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0267-net-mscc-ocelot-convert-to-use-ocelot_port_add_txtst.patch @@ -0,0 +1,93 @@ +From c0c92f8d9a093faf64397b1874f074e071a5b4e2 Mon Sep 17 00:00:00 2001 +From: Yangbo Lu <yangbo.lu@nxp.com> +Date: Wed, 20 Nov 2019 16:23:16 +0800 +Subject: [PATCH] net: mscc: ocelot: convert to use + ocelot_port_add_txtstamp_skb() + +Convert to use ocelot_port_add_txtstamp_skb() for adding skbs which +require TX timestamp into list. Export it so that DSA Felix driver +could reuse it too. + +Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> +Reviewed-by: Andrew Lunn <andrew@lunn.ch> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/mscc/ocelot.c | 43 ++++++++++++++++++++++++-------------- + include/soc/mscc/ocelot.h | 2 ++ + 2 files changed, 29 insertions(+), 16 deletions(-) + +--- a/drivers/net/ethernet/mscc/ocelot.c ++++ b/drivers/net/ethernet/mscc/ocelot.c +@@ -575,6 +575,32 @@ static int ocelot_gen_ifh(u32 *ifh, stru + return 0; + } + ++int ocelot_port_add_txtstamp_skb(struct ocelot_port *ocelot_port, ++ struct sk_buff *skb) ++{ ++ struct skb_shared_info *shinfo = skb_shinfo(skb); ++ struct ocelot *ocelot = ocelot_port->ocelot; ++ ++ if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP && ++ ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) { ++ struct ocelot_skb *oskb = ++ kzalloc(sizeof(struct ocelot_skb), GFP_ATOMIC); ++ ++ if (unlikely(!oskb)) ++ return -ENOMEM; ++ ++ shinfo->tx_flags |= SKBTX_IN_PROGRESS; ++ ++ oskb->skb = skb; ++ oskb->id = ocelot_port->ts_id % 4; ++ ++ list_add_tail(&oskb->head, &ocelot_port->skbs); ++ return 0; ++ } ++ return -ENODATA; ++} ++EXPORT_SYMBOL(ocelot_port_add_txtstamp_skb); ++ + static int ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev) + { + struct ocelot_port_private *priv = netdev_priv(dev); +@@ -637,26 +663,11 @@ static int ocelot_port_xmit(struct sk_bu + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + +- if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP && +- ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) { +- struct ocelot_skb *oskb = +- kzalloc(sizeof(struct ocelot_skb), GFP_ATOMIC); +- +- if (unlikely(!oskb)) +- goto out; +- +- skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; +- +- oskb->skb = skb; +- oskb->id = ocelot_port->ts_id % 4; ++ if (!ocelot_port_add_txtstamp_skb(ocelot_port, skb)) { + ocelot_port->ts_id++; +- +- list_add_tail(&oskb->head, &ocelot_port->skbs); +- + return NETDEV_TX_OK; + } + +-out: + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } +--- a/include/soc/mscc/ocelot.h ++++ b/include/soc/mscc/ocelot.h +@@ -543,6 +543,8 @@ int ocelot_vlan_del(struct ocelot *ocelo + int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr); + int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr); + int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts); ++int ocelot_port_add_txtstamp_skb(struct ocelot_port *ocelot_port, ++ struct sk_buff *skb); + void ocelot_get_txtstamp(struct ocelot *ocelot); + + #endif |