openwrt/target/linux/generic/pending-4.19/644-net-pppoe-support-hardware-flow-table-offload.patch
Hauke Mehrtens 9261e7447e kernel: Make the patches apply on top of 4.19
This makes the patches which were just copied in the previous commit
apply on top of kernel 4.19.

The patches in the backports-4.19 folder were checked if they are really
in kernel 4.19 based on the title and only removed if they were found in
the upstream kernel.

The following additional patches form the pending folder went into
upstream Linux 4.19:
pending-4.19/171-usb-dwc2-Fix-inefficient-copy-of-unaligned-buffers.patch
pending-4.19/190-2-5-e1000e-Fix-wrong-comment-related-to-link-detection.patch
pending-4.19/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
pending-4.19/479-mtd-spi-nor-add-eon-en25qh32.patch
pending-4.19/950-tty-serial-exar-generalize-rs485-setup.patch
pending-4.19/340-MIPS-mm-remove-mips_dma_mapping_error.patch

Bigger changes were introduced to the m25p80 spi nor driver, as far as I
saw it in the new code, it now has the functionality provided in this
patch:
pending-4.19/450-mtd-m25p80-allow-fallback-from-spi_flash_read-to-reg.patch

Part of this patch went upstream independent of OpenWrt:
hack-4.19/220-gc_sections.patch
This patch was reworked to match the changes done upstream.

The MIPS DMA API changed a lot, this patch was rewritten to match the
new DMA handling:
pending-4.19/341-MIPS-mm-remove-no-op-dma_map_ops-where-possible.patch

I did bigger manual changes to the following patches and I am not 100% sure if they are all correct:
pending-4.19/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
pending-4.19/411-mtd-partial_eraseblock_write.patch
pending-4.19/600-netfilter_conntrack_flush.patch
pending-4.19/611-netfilter_match_bypass_default_table.patch
pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
hack-4.19/211-host_tools_portability.patch
hack-4.19/221-module_exports.patch
hack-4.19/321-powerpc_crtsavres_prereq.patch
hack-4.19/902-debloat_proc.patch

This is based on patchset from Marko Ratkaj <marko.ratkaj@sartura.hr>

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-12-15 14:28:48 +01:00

126 lines
3.5 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 15 Mar 2018 21:15:00 +0100
Subject: [PATCH] net: pppoe: support hardware flow table offload
Pass on the PPPoE session ID and the remote MAC address
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -57,6 +57,11 @@
#include <net/net_namespace.h>
#include <net/netns/generic.h>
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+#include <linux/netfilter.h>
+#include <net/netfilter/nf_flow_table.h>
+#endif
+
#define PPP_VERSION "2.4.2"
/*
@@ -1368,12 +1373,37 @@ static void ppp_dev_priv_destructor(stru
ppp_destroy_interface(ppp);
}
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+static int ppp_flow_offload_check(struct flow_offload_hw_path *path)
+{
+ struct ppp *ppp = netdev_priv(path->dev);
+ struct ppp_channel *chan;
+ struct channel *pch;
+
+ if (ppp->flags & SC_MULTILINK)
+ return -EOPNOTSUPP;
+
+ if (list_empty(&ppp->channels))
+ return -ENODEV;
+
+ pch = list_first_entry(&ppp->channels, struct channel, clist);
+ chan = pch->chan;
+ if (!chan->ops->flow_offload_check)
+ return -EOPNOTSUPP;
+
+ return chan->ops->flow_offload_check(chan, path);
+}
+#endif /* CONFIG_NF_FLOW_TABLE */
+
static const struct net_device_ops ppp_netdev_ops = {
.ndo_init = ppp_dev_init,
.ndo_uninit = ppp_dev_uninit,
.ndo_start_xmit = ppp_start_xmit,
.ndo_do_ioctl = ppp_net_ioctl,
.ndo_get_stats64 = ppp_get_stats64,
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+ .ndo_flow_offload_check = ppp_flow_offload_check,
+#endif
};
static struct device_type ppp_type = {
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -78,6 +78,11 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+#include <linux/netfilter.h>
+#include <net/netfilter/nf_flow_table.h>
+#endif
+
#include <linux/nsproxy.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
@@ -975,8 +980,36 @@ static int pppoe_xmit(struct ppp_channel
return __pppoe_xmit(sk, skb);
}
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+static int pppoe_flow_offload_check(struct ppp_channel *chan,
+ struct flow_offload_hw_path *path)
+{
+ struct sock *sk = (struct sock *)chan->private;
+ struct pppox_sock *po = pppox_sk(sk);
+ struct net_device *dev = po->pppoe_dev;
+
+ if (sock_flag(sk, SOCK_DEAD) ||
+ !(sk->sk_state & PPPOX_CONNECTED) || !dev)
+ return -ENODEV;
+
+ path->dev = po->pppoe_dev;
+ path->flags |= FLOW_OFFLOAD_PATH_PPPOE;
+ memcpy(path->eth_src, po->pppoe_dev->dev_addr, ETH_ALEN);
+ memcpy(path->eth_dest, po->pppoe_pa.remote, ETH_ALEN);
+ path->pppoe_sid = be16_to_cpu(po->num);
+
+ if (path->dev->netdev_ops->ndo_flow_offload_check)
+ return path->dev->netdev_ops->ndo_flow_offload_check(path);
+
+ return 0;
+}
+#endif /* CONFIG_NF_FLOW_TABLE */
+
static const struct ppp_channel_ops pppoe_chan_ops = {
.start_xmit = pppoe_xmit,
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+ .flow_offload_check = pppoe_flow_offload_check,
+#endif
};
static int pppoe_recvmsg(struct socket *sock, struct msghdr *m,
--- a/include/linux/ppp_channel.h
+++ b/include/linux/ppp_channel.h
@@ -32,6 +32,10 @@ struct ppp_channel_ops {
int (*start_xmit)(struct ppp_channel *, struct sk_buff *);
/* Handle an ioctl call that has come in via /dev/ppp. */
int (*ioctl)(struct ppp_channel *, unsigned int, unsigned long);
+
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+ int (*flow_offload_check)(struct ppp_channel *, struct flow_offload_hw_path *);
+#endif
};
struct ppp_channel {