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Add a directory by kernel instead of a common root, add qnap-301w and rpi4 kernel 6.1 suppport

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This commit is contained in:
Ycarus (Yannick Chabanois) 2023-04-22 08:07:24 +02:00
parent e910436a7a
commit 46837ec4c0
9459 changed files with 362648 additions and 116345 deletions
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50
5.4/target/linux/generic/pending-5.4/481-mtd-spi-nor-Add-default-and-support-for-missing-flashes.patch Normal file
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@ -0,0 +1,50 @@
Index: linux-5.4.124/drivers/mtd/spi-nor/spi-nor.c
===================================================================
--- linux-5.4.124.orig/drivers/mtd/spi-nor/spi-nor.c
+++ linux-5.4.124/drivers/mtd/spi-nor/spi-nor.c
@@ -2241,6 +2241,9 @@ static const struct flash_info spi_nor_i
.fixups = &gd25q256_fixups,
},
+ /* Zbit */
+ { "zb25vq128", INFO(0xC84018, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+
/* Intel/Numonyx -- xxxs33b */
{ "160s33b", INFO(0x898911, 0, 64 * 1024, 32, 0) },
{ "320s33b", INFO(0x898912, 0, 64 * 1024, 64, 0) },
@@ -2405,6 +2408,7 @@ static const struct flash_info spi_nor_i
{ "m25p32", INFO(0x202016, 0, 64 * 1024, 64, 0) },
{ "m25p64", INFO(0x202017, 0, 64 * 1024, 128, 0) },
{ "m25p128", INFO(0x202018, 0, 256 * 1024, 64, 0) },
+ { "n25q032", INFO(0x20ba16, 0, 64 * 1024, 64, 0) },
{ "m25p05-nonjedec", INFO(0, 0, 32 * 1024, 2, 0) },
{ "m25p10-nonjedec", INFO(0, 0, 32 * 1024, 4, 0) },
@@ -2508,10 +2512,14 @@ static const struct flash_info spi_nor_i
{ "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
/* XTX Technology (Shenzhen) Limited */
+ { "XT25F128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ "xt25f128b", INFO(0x0B4018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ },
};
+static const struct flash_info spi_nor_unknown_id =
+ { "undefined", INFO(0x0, 0, 64 * 1024, 256, SECT_4K) };
+
static const struct flash_info *spi_nor_read_id(struct spi_nor *nor)
{
int tmp;
@@ -2542,9 +2550,12 @@ static const struct flash_info *spi_nor_
return &spi_nor_ids[tmp];
}
}
+ return &spi_nor_unknown_id; // for Teltonikia RUT devices
+ /*
dev_err(nor->dev, "unrecognized JEDEC id bytes: %*ph\n",
SPI_NOR_MAX_ID_LEN, id);
return ERR_PTR(-ENODEV);
+ */
}
static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,

198
5.4/target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch Normal file
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@ -0,0 +1,198 @@
From a07e31adf2753cad2fd9790db5bfc047c81e8152 Mon Sep 17 00:00:00 2001
From: Felix Matouschek <felix@matouschek.org>
Date: Fri, 2 Jul 2021 20:31:23 +0200
Subject: [PATCH] mtd: spinand: Add support for XTX XT26G0xA
Add support for XTX Technology XT26G01AXXXXX, XTX26G02AXXXXX and
XTX26G04AXXXXX SPI NAND.
These are 3V, 1G/2G/4Gbit serial SLC NAND flash devices with on-die ECC
(8bit strength per 512bytes).
Tested on Teltonika RUTX10 flashed with OpenWrt.
Datasheets available at
http://www.xtxtech.com/download/?AId=225
https://datasheet.lcsc.com/szlcsc/2005251034_XTX-XT26G01AWSEGA_C558841.pdf
Signed-off-by: Felix Matouschek <felix@matouschek.org>
---
drivers/mtd/nand/spi/Makefile | 2 +-
drivers/mtd/nand/spi/core.c | 1 +
drivers/mtd/nand/spi/xtx.c | 122 ++++++++++++++++++++++++++++++++++
include/linux/mtd/spinand.h | 1 +
4 files changed, 125 insertions(+), 1 deletion(-)
create mode 100644 drivers/mtd/nand/spi/xtx.c
Index: linux-5.4.132/drivers/mtd/nand/spi/Makefile
===================================================================
--- linux-5.4.132.orig/drivers/mtd/nand/spi/Makefile
+++ linux-5.4.132/drivers/mtd/nand/spi/Makefile
@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
-spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o
+spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
Index: linux-5.4.132/drivers/mtd/nand/spi/core.c
===================================================================
--- linux-5.4.132.orig/drivers/mtd/nand/spi/core.c
+++ linux-5.4.132/drivers/mtd/nand/spi/core.c
@@ -758,6 +758,7 @@ static const struct spinand_manufacturer
&paragon_spinand_manufacturer,
&toshiba_spinand_manufacturer,
&winbond_spinand_manufacturer,
+ &xtx_spinand_manufacturer,
};
static int spinand_manufacturer_detect(struct spinand_device *spinand)
Index: linux-5.4.132/drivers/mtd/nand/spi/xtx.c
===================================================================
--- /dev/null
+++ linux-5.4.132/drivers/mtd/nand/spi/xtx.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Author:
+ * Felix Matouschek <felix@matouschek.org>
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/mtd/spinand.h>
+
+#define SPINAND_MFR_XTX 0x0B
+
+#define XT26G0XA_STATUS_ECC_MASK GENMASK(5, 2)
+#define XT26G0XA_STATUS_ECC_NO_DETECTED (0 << 2)
+#define XT26G0XA_STATUS_ECC_8_CORRECTED (3 << 4)
+#define XT26G0XA_STATUS_ECC_UNCOR_ERROR (2 << 4)
+
+static SPINAND_OP_VARIANTS(read_cache_variants,
+ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
+
+static SPINAND_OP_VARIANTS(write_cache_variants,
+ SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
+ SPINAND_PROG_LOAD(true, 0, NULL, 0));
+
+static SPINAND_OP_VARIANTS(update_cache_variants,
+ SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
+ SPINAND_PROG_LOAD(false, 0, NULL, 0));
+
+static int xt26g0xa_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section)
+ return -ERANGE;
+
+ region->offset = 8;
+ region->length = 40;
+
+ return 0;
+}
+
+static int xt26g0xa_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section)
+ return -ERANGE;
+
+ region->offset = 1;
+ region->length = 7;
+
+ return 0;
+}
+
+static const struct mtd_ooblayout_ops xt26g0xa_ooblayout = {
+ .ecc = xt26g0xa_ooblayout_ecc,
+ .free = xt26g0xa_ooblayout_free,
+};
+
+static int xt26g0xa_ecc_get_status(struct spinand_device *spinand,
+ u8 status)
+{
+ switch (status & XT26G0XA_STATUS_ECC_MASK) {
+ case XT26G0XA_STATUS_ECC_NO_DETECTED:
+ return 0;
+ case XT26G0XA_STATUS_ECC_8_CORRECTED:
+ return 8;
+ case XT26G0XA_STATUS_ECC_UNCOR_ERROR:
+ return -EBADMSG;
+ default: /* (1 << 2) through (7 << 2) are 1-7 corrected errors */
+ return (status & XT26G0XA_STATUS_ECC_MASK) >> 2;
+ }
+
+ return -EINVAL;
+}
+
+static const struct spinand_info xtx_spinand_table[] = {
+ SPINAND_INFO("XT26G01A", 0xE1,
+ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&xt26g0xa_ooblayout,
+ xt26g0xa_ecc_get_status)),
+ SPINAND_INFO("XT26G02A", 0xE2,
+ NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&xt26g0xa_ooblayout,
+ xt26g0xa_ecc_get_status)),
+ SPINAND_INFO("XT26G04A", 0xE3,
+ NAND_MEMORG(1, 2048, 64, 128, 2048, 40, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&xt26g0xa_ooblayout,
+ xt26g0xa_ecc_get_status)),
+};
+
+static int xtx_spinand_detect(struct spinand_device *spinand)
+{
+ u8 *id = spinand->id.data;
+ int ret;
+
+ if (id[1] != SPINAND_MFR_XTX)
+ return 0;
+
+ ret = spinand_match_and_init(spinand, xtx_spinand_table,
+ ARRAY_SIZE(xtx_spinand_table), id[2]);
+ if (ret)
+ return ret;
+
+ return 1;
+}
+
+static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = {
+ .detect = xtx_spinand_detect,
+};
+
+const struct spinand_manufacturer xtx_spinand_manufacturer = {
+ .id = SPINAND_MFR_XTX,
+ .name = "XTX",
+ .ops = &xtx_spinand_manuf_ops,
+};
Index: linux-5.4.132/include/linux/mtd/spinand.h
===================================================================
--- linux-5.4.132.orig/include/linux/mtd/spinand.h
+++ linux-5.4.132/include/linux/mtd/spinand.h
@@ -230,6 +230,7 @@ extern const struct spinand_manufacturer
extern const struct spinand_manufacturer paragon_spinand_manufacturer;
extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
extern const struct spinand_manufacturer winbond_spinand_manufacturer;
+extern const struct spinand_manufacturer xtx_spinand_manufacturer;
/**
* struct spinand_op_variants - SPI NAND operation variants

554
5.4/target/linux/generic/pending-5.4/640-netfilter-nf_flow_table-add-hardware-offload-support.patch Normal file
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@ -0,0 +1,554 @@
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 11 Jan 2018 16:32:00 +0100
Subject: [PATCH] netfilter: nf_flow_table: add hardware offload support
This patch adds the infrastructure to offload flows to hardware, in case
the nic/switch comes with built-in flow tables capabilities.
If the hardware comes with no hardware flow tables or they have
limitations in terms of features, the existing infrastructure falls back
to the software flow table implementation.
The software flow table garbage collector skips entries that resides in
the hardware, so the hardware will be responsible for releasing this
flow table entry too via flow_offload_dead().
Hardware configuration, either to add or to delete entries, is done from
the hardware offload workqueue, to ensure this is done from user context
given that we may sleep when grabbing the mdio mutex.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
create mode 100644 net/netfilter/nf_flow_table_hw.c
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -922,6 +922,13 @@ struct devlink;
struct tlsdev_ops;
+struct flow_offload;
+
+enum flow_offload_type {
+ FLOW_OFFLOAD_ADD = 0,
+ FLOW_OFFLOAD_DEL,
+};
+
/*
* This structure defines the management hooks for network devices.
* The following hooks can be defined; unless noted otherwise, they are
@@ -1154,6 +1161,10 @@ struct tlsdev_ops;
* int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
* u16 flags);
*
+ * int (*ndo_flow_offload)(enum flow_offload_type type,
+ * struct flow_offload *flow);
+ * Adds/deletes flow entry to/from net device flowtable.
+ *
* int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
* Called to change device carrier. Soft-devices (like dummy, team, etc)
* which do not represent real hardware may define this to allow their
@@ -1401,6 +1412,8 @@ struct net_device_ops {
int (*ndo_bridge_dellink)(struct net_device *dev,
struct nlmsghdr *nlh,
u16 flags);
+ int (*ndo_flow_offload)(enum flow_offload_type type,
+ struct flow_offload *flow);
int (*ndo_change_carrier)(struct net_device *dev,
bool new_carrier);
int (*ndo_get_phys_port_id)(struct net_device *dev,
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -21,11 +21,17 @@ struct nf_flowtable_type {
struct module *owner;
};
+enum nf_flowtable_flags {
+ NF_FLOWTABLE_F_HW = 0x1,
+};
+
struct nf_flowtable {
struct list_head list;
struct rhashtable rhashtable;
const struct nf_flowtable_type *type;
+ u32 flags;
struct delayed_work gc_work;
+ possible_net_t ft_net;
};
enum flow_offload_tuple_dir {
@@ -68,6 +74,7 @@ struct flow_offload_tuple_rhash {
#define FLOW_OFFLOAD_DNAT 0x2
#define FLOW_OFFLOAD_DYING 0x4
#define FLOW_OFFLOAD_TEARDOWN 0x8
+#define FLOW_OFFLOAD_HW 0x10
struct flow_offload {
struct flow_offload_tuple_rhash tuplehash[FLOW_OFFLOAD_DIR_MAX];
@@ -120,6 +127,22 @@ unsigned int nf_flow_offload_ip_hook(voi
unsigned int nf_flow_offload_ipv6_hook(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state);
+void nf_flow_offload_hw_add(struct net *net, struct flow_offload *flow,
+ struct nf_conn *ct);
+void nf_flow_offload_hw_del(struct net *net, struct flow_offload *flow);
+
+struct nf_flow_table_hw {
+ struct module *owner;
+ void (*add)(struct net *net, struct flow_offload *flow,
+ struct nf_conn *ct);
+ void (*del)(struct net *net, struct flow_offload *flow);
+};
+
+int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload);
+void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload);
+
+extern struct work_struct nf_flow_offload_hw_work;
+
#define MODULE_ALIAS_NF_FLOWTABLE(family) \
MODULE_ALIAS("nf-flowtable-" __stringify(family))
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -1516,6 +1516,7 @@ enum nft_object_attributes {
* @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
* @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
* @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
+ * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
*/
enum nft_flowtable_attributes {
NFTA_FLOWTABLE_UNSPEC,
@@ -1525,6 +1526,7 @@ enum nft_flowtable_attributes {
NFTA_FLOWTABLE_USE,
NFTA_FLOWTABLE_HANDLE,
NFTA_FLOWTABLE_PAD,
+ NFTA_FLOWTABLE_FLAGS,
__NFTA_FLOWTABLE_MAX
};
#define NFTA_FLOWTABLE_MAX (__NFTA_FLOWTABLE_MAX - 1)
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -711,6 +711,15 @@ config NF_FLOW_TABLE
To compile it as a module, choose M here.
+config NF_FLOW_TABLE_HW
+ tristate "Netfilter flow table hardware offload module"
+ depends on NF_FLOW_TABLE
+ help
+ This option adds hardware offload support for the flow table core
+ infrastructure.
+
+ To compile it as a module, choose M here.
+
config NETFILTER_XTABLES
tristate "Netfilter Xtables support (required for ip_tables)"
default m if NETFILTER_ADVANCED=n
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -123,6 +123,7 @@ obj-$(CONFIG_NF_FLOW_TABLE) += nf_flow_t
nf_flow_table-objs := nf_flow_table_core.o nf_flow_table_ip.o
obj-$(CONFIG_NF_FLOW_TABLE_INET) += nf_flow_table_inet.o
+obj-$(CONFIG_NF_FLOW_TABLE_HW) += nf_flow_table_hw.o
# generic X tables
obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -248,10 +248,16 @@ static inline bool nf_flow_has_expired(c
return nf_flow_timeout_delta(flow->timeout) <= 0;
}
+static inline bool nf_flow_in_hw(const struct flow_offload *flow)
+{
+ return flow->flags & FLOW_OFFLOAD_HW;
+}
+
static void flow_offload_del(struct nf_flowtable *flow_table,
struct flow_offload *flow)
{
struct flow_offload_entry *e;
+ struct net *net = read_pnet(&flow_table->ft_net);
rhashtable_remove_fast(&flow_table->rhashtable,
&flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].node,
@@ -271,6 +277,9 @@ static void flow_offload_del(struct nf_f
if (!(flow->flags & FLOW_OFFLOAD_TEARDOWN))
flow_offload_fixup_ct_state(e->ct);
+ if (nf_flow_in_hw(flow))
+ nf_flow_offload_hw_del(net, flow);
+
flow_offload_free(flow);
}
@@ -490,10 +502,43 @@ int nf_flow_dnat_port(const struct flow_
}
EXPORT_SYMBOL_GPL(nf_flow_dnat_port);
+static const struct nf_flow_table_hw __rcu *nf_flow_table_hw_hook __read_mostly;
+
+static int nf_flow_offload_hw_init(struct nf_flowtable *flow_table)
+{
+ const struct nf_flow_table_hw *offload;
+
+ if (!rcu_access_pointer(nf_flow_table_hw_hook))
+ request_module("nf-flow-table-hw");
+
+ rcu_read_lock();
+ offload = rcu_dereference(nf_flow_table_hw_hook);
+ if (!offload)
+ goto err_no_hw_offload;
+
+ if (!try_module_get(offload->owner))
+ goto err_no_hw_offload;
+
+ rcu_read_unlock();
+
+ return 0;
+
+err_no_hw_offload:
+ rcu_read_unlock();
+
+ return -EOPNOTSUPP;
+}
+
int nf_flow_table_init(struct nf_flowtable *flowtable)
{
int err;
+ if (flowtable->flags & NF_FLOWTABLE_F_HW) {
+ err = nf_flow_offload_hw_init(flowtable);
+ if (err)
+ return err;
+ }
+
INIT_DEFERRABLE_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
err = rhashtable_init(&flowtable->rhashtable,
@@ -534,6 +579,8 @@ static void nf_flow_table_iterate_cleanu
{
nf_flow_table_iterate(flowtable, nf_flow_table_do_cleanup, dev);
flush_delayed_work(&flowtable->gc_work);
+ if (flowtable->flags & NF_FLOWTABLE_F_HW)
+ flush_work(&nf_flow_offload_hw_work);
}
void nf_flow_table_cleanup(struct net_device *dev)
@@ -547,6 +594,26 @@ void nf_flow_table_cleanup(struct net_de
}
EXPORT_SYMBOL_GPL(nf_flow_table_cleanup);
+struct work_struct nf_flow_offload_hw_work;
+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_work);
+
+/* Give the hardware workqueue the chance to remove entries from hardware.*/
+static void nf_flow_offload_hw_free(struct nf_flowtable *flowtable)
+{
+ const struct nf_flow_table_hw *offload;
+
+ flush_work(&nf_flow_offload_hw_work);
+
+ rcu_read_lock();
+ offload = rcu_dereference(nf_flow_table_hw_hook);
+ if (!offload) {
+ rcu_read_unlock();
+ return;
+ }
+ module_put(offload->owner);
+ rcu_read_unlock();
+}
+
void nf_flow_table_free(struct nf_flowtable *flow_table)
{
mutex_lock(&flowtable_lock);
@@ -556,9 +623,58 @@ void nf_flow_table_free(struct nf_flowta
nf_flow_table_iterate(flow_table, nf_flow_table_do_cleanup, NULL);
nf_flow_table_iterate(flow_table, nf_flow_offload_gc_step, flow_table);
rhashtable_destroy(&flow_table->rhashtable);
+ if (flow_table->flags & NF_FLOWTABLE_F_HW)
+ nf_flow_offload_hw_free(flow_table);
}
EXPORT_SYMBOL_GPL(nf_flow_table_free);
+/* Must be called from user context. */
+void nf_flow_offload_hw_add(struct net *net, struct flow_offload *flow,
+ struct nf_conn *ct)
+{
+ const struct nf_flow_table_hw *offload;
+
+ rcu_read_lock();
+ offload = rcu_dereference(nf_flow_table_hw_hook);
+ if (offload)
+ offload->add(net, flow, ct);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_add);
+
+/* Must be called from user context. */
+void nf_flow_offload_hw_del(struct net *net, struct flow_offload *flow)
+{
+ const struct nf_flow_table_hw *offload;
+
+ rcu_read_lock();
+ offload = rcu_dereference(nf_flow_table_hw_hook);
+ if (offload)
+ offload->del(net, flow);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_del);
+
+int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload)
+{
+ if (rcu_access_pointer(nf_flow_table_hw_hook))
+ return -EBUSY;
+
+ rcu_assign_pointer(nf_flow_table_hw_hook, offload);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nf_flow_table_hw_register);
+
+void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload)
+{
+ WARN_ON(rcu_access_pointer(nf_flow_table_hw_hook) != offload);
+ rcu_assign_pointer(nf_flow_table_hw_hook, NULL);
+
+ synchronize_rcu();
+}
+EXPORT_SYMBOL_GPL(nf_flow_table_hw_unregister);
+
static int nf_flow_table_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
--- /dev/null
+++ b/net/netfilter/nf_flow_table_hw.c
@@ -0,0 +1,169 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netfilter.h>
+#include <linux/rhashtable.h>
+#include <linux/netdevice.h>
+#include <net/netfilter/nf_flow_table.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/nf_conntrack_tuple.h>
+
+static DEFINE_SPINLOCK(flow_offload_hw_pending_list_lock);
+static LIST_HEAD(flow_offload_hw_pending_list);
+
+static DEFINE_MUTEX(nf_flow_offload_hw_mutex);
+
+struct flow_offload_hw {
+ struct list_head list;
+ enum flow_offload_type type;
+ struct flow_offload *flow;
+ struct nf_conn *ct;
+ possible_net_t flow_hw_net;
+};
+
+static int do_flow_offload_hw(struct net *net, struct flow_offload *flow,
+ int type)
+{
+ struct net_device *indev;
+ int ret, ifindex;
+
+ ifindex = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.iifidx;
+ indev = dev_get_by_index(net, ifindex);
+ if (WARN_ON(!indev))
+ return 0;
+
+ mutex_lock(&nf_flow_offload_hw_mutex);
+ ret = indev->netdev_ops->ndo_flow_offload(type, flow);
+ mutex_unlock(&nf_flow_offload_hw_mutex);
+
+ dev_put(indev);
+
+ return ret;
+}
+
+static void flow_offload_hw_work_add(struct flow_offload_hw *offload)
+{
+ struct net *net;
+ int ret;
+
+ if (nf_ct_is_dying(offload->ct))
+ return;
+
+ net = read_pnet(&offload->flow_hw_net);
+ ret = do_flow_offload_hw(net, offload->flow, FLOW_OFFLOAD_ADD);
+ if (ret >= 0)
+ offload->flow->flags |= FLOW_OFFLOAD_HW;
+}
+
+static void flow_offload_hw_work_del(struct flow_offload_hw *offload)
+{
+ struct net *net = read_pnet(&offload->flow_hw_net);
+
+ do_flow_offload_hw(net, offload->flow, FLOW_OFFLOAD_DEL);
+}
+
+static void flow_offload_hw_work(struct work_struct *work)
+{
+ struct flow_offload_hw *offload, *next;
+ LIST_HEAD(hw_offload_pending);
+
+ spin_lock_bh(&flow_offload_hw_pending_list_lock);
+ list_replace_init(&flow_offload_hw_pending_list, &hw_offload_pending);
+ spin_unlock_bh(&flow_offload_hw_pending_list_lock);
+
+ list_for_each_entry_safe(offload, next, &hw_offload_pending, list) {
+ switch (offload->type) {
+ case FLOW_OFFLOAD_ADD:
+ flow_offload_hw_work_add(offload);
+ break;
+ case FLOW_OFFLOAD_DEL:
+ flow_offload_hw_work_del(offload);
+ break;
+ }
+ if (offload->ct)
+ nf_conntrack_put(&offload->ct->ct_general);
+ list_del(&offload->list);
+ kfree(offload);
+ }
+}
+
+static void flow_offload_queue_work(struct flow_offload_hw *offload)
+{
+ spin_lock_bh(&flow_offload_hw_pending_list_lock);
+ list_add_tail(&offload->list, &flow_offload_hw_pending_list);
+ spin_unlock_bh(&flow_offload_hw_pending_list_lock);
+
+ schedule_work(&nf_flow_offload_hw_work);
+}
+
+static void flow_offload_hw_add(struct net *net, struct flow_offload *flow,
+ struct nf_conn *ct)
+{
+ struct flow_offload_hw *offload;
+
+ offload = kmalloc(sizeof(struct flow_offload_hw), GFP_ATOMIC);
+ if (!offload)
+ return;
+
+ nf_conntrack_get(&ct->ct_general);
+ offload->type = FLOW_OFFLOAD_ADD;
+ offload->ct = ct;
+ offload->flow = flow;
+ write_pnet(&offload->flow_hw_net, net);
+
+ flow_offload_queue_work(offload);
+}
+
+static void flow_offload_hw_del(struct net *net, struct flow_offload *flow)
+{
+ struct flow_offload_hw *offload;
+
+ offload = kmalloc(sizeof(struct flow_offload_hw), GFP_ATOMIC);
+ if (!offload)
+ return;
+
+ offload->type = FLOW_OFFLOAD_DEL;
+ offload->ct = NULL;
+ offload->flow = flow;
+ write_pnet(&offload->flow_hw_net, net);
+
+ flow_offload_queue_work(offload);
+}
+
+static const struct nf_flow_table_hw flow_offload_hw = {
+ .add = flow_offload_hw_add,
+ .del = flow_offload_hw_del,
+ .owner = THIS_MODULE,
+};
+
+static int __init nf_flow_table_hw_module_init(void)
+{
+ INIT_WORK(&nf_flow_offload_hw_work, flow_offload_hw_work);
+ nf_flow_table_hw_register(&flow_offload_hw);
+
+ return 0;
+}
+
+static void __exit nf_flow_table_hw_module_exit(void)
+{
+ struct flow_offload_hw *offload, *next;
+ LIST_HEAD(hw_offload_pending);
+
+ nf_flow_table_hw_unregister(&flow_offload_hw);
+ cancel_work_sync(&nf_flow_offload_hw_work);
+
+ list_for_each_entry_safe(offload, next, &hw_offload_pending, list) {
+ if (offload->ct)
+ nf_conntrack_put(&offload->ct->ct_general);
+ list_del(&offload->list);
+ kfree(offload);
+ }
+}
+
+module_init(nf_flow_table_hw_module_init);
+module_exit(nf_flow_table_hw_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
+MODULE_ALIAS("nf-flow-table-hw");
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5743,6 +5743,13 @@ static int nf_tables_flowtable_parse_hoo
if (err < 0)
return err;
+ for (i = 0; i < n; i++) {
+ if (flowtable->data.flags & NF_FLOWTABLE_F_HW &&
+ !dev_array[i]->netdev_ops->ndo_flow_offload) {
+ return -EOPNOTSUPP;
+ }
+ }
+
ops = kcalloc(n, sizeof(struct nf_hook_ops), GFP_KERNEL);
if (!ops)
return -ENOMEM;
@@ -5873,10 +5880,19 @@ static int nf_tables_newflowtable(struct
}
flowtable->data.type = type;
+ write_pnet(&flowtable->data.ft_net, net);
+
err = type->init(&flowtable->data);
if (err < 0)
goto err3;
+ if (nla[NFTA_FLOWTABLE_FLAGS]) {
+ flowtable->data.flags =
+ ntohl(nla_get_be32(nla[NFTA_FLOWTABLE_FLAGS]));
+ if (flowtable->data.flags & ~NF_FLOWTABLE_F_HW)
+ goto err4;
+ }
+
err = nf_tables_flowtable_parse_hook(&ctx, nla[NFTA_FLOWTABLE_HOOK],
flowtable);
if (err < 0)
@@ -6002,7 +6018,8 @@ static int nf_tables_fill_flowtable_info
nla_put_string(skb, NFTA_FLOWTABLE_NAME, flowtable->name) ||
nla_put_be32(skb, NFTA_FLOWTABLE_USE, htonl(flowtable->use)) ||
nla_put_be64(skb, NFTA_FLOWTABLE_HANDLE, cpu_to_be64(flowtable->handle),
- NFTA_FLOWTABLE_PAD))
+ NFTA_FLOWTABLE_PAD) ||
+ nla_put_be32(skb, NFTA_FLOWTABLE_FLAGS, htonl(flowtable->data.flags)))
goto nla_put_failure;
nest = nla_nest_start_noflag(skb, NFTA_FLOWTABLE_HOOK);
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -128,6 +128,9 @@ static void nft_flow_offload_eval(const
if (ret < 0)
goto err_flow_add;
+ if (flowtable->flags & NF_FLOWTABLE_F_HW)
+ nf_flow_offload_hw_add(nft_net(pkt), flow, ct);
+
dst_release(route.tuple[!dir].dst);
return;

26
5.4/target/linux/generic/pending-5.4/645-netfilter-nf_flow_table-rework-hardware-offload-time.patch Normal file
View file

@ -0,0 +1,26 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 25 Mar 2018 21:10:55 +0200
Subject: [PATCH] netfilter: nf_flow_table: rework hardware offload timeout
handling
Some offload implementations send keepalive packets + explicit
notifications of TCP FIN/RST packets. In this case it is more convenient
to simply let the driver update flow->timeout handling and use the
regular flow offload gc step.
For drivers that manage their own lifetime, a separate flag can be set
to avoid gc timeouts.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -75,6 +75,7 @@ struct flow_offload_tuple_rhash {
#define FLOW_OFFLOAD_DYING 0x4
#define FLOW_OFFLOAD_TEARDOWN 0x8
#define FLOW_OFFLOAD_HW 0x10
+#define FLOW_OFFLOAD_KEEP 0x20
struct flow_offload {
struct flow_offload_tuple_rhash tuplehash[FLOW_OFFLOAD_DIR_MAX];