Merge branch 'mlxsw-mphash-policies'

Ido Schimmel says:

====================
mlxsw: Add support for new multipath hash policies

This patchset adds support for two new multipath hash policies in mlxsw.

Patch #1 emits net events whenever the
net.ipv{4,6}.fib_multipath_hash_fields sysctls are changed. This allows
listeners to react to changes in the packet fields used for the
computation of the multipath hash.

Patches #2-#3 refactor the code in mlxsw that is responsible for the
configuration of the multipath hash, so that it will be easier to extend
for the two new policies.

Patch #4 adds the register fields required to support the new policies.

Patch #5-#7 add support for inner layer 3 and custom multipath hash
policies.

Tested using following forwarding selftests:

* custom_multipath_hash.sh
* gre_custom_multipath_hash.sh
* gre_inner_v4_multipath.sh
* gre_inner_v6_multipath.sh
====================
This commit is contained in:
David S. Miller 2021-05-19 12:47:47 -07:00
commit 9287aa2bfd
4 changed files with 276 additions and 77 deletions

View File

@ -8305,6 +8305,8 @@ enum {
MLXSW_REG_RECR2_TCP_UDP_EN_IPV4 = 7,
/* Enable TCP/UDP header fields if packet is IPv6 */
MLXSW_REG_RECR2_TCP_UDP_EN_IPV6 = 8,
__MLXSW_REG_RECR2_HEADER_CNT,
};
/* reg_recr2_outer_header_enables
@ -8339,6 +8341,8 @@ enum {
MLXSW_REG_RECR2_TCP_UDP_SPORT = 74,
/* TCP/UDP Destination Port */
MLXSW_REG_RECR2_TCP_UDP_DPORT = 75,
__MLXSW_REG_RECR2_FIELD_CNT,
};
/* reg_recr2_outer_header_fields_enable
@ -8347,47 +8351,47 @@ enum {
*/
MLXSW_ITEM_BIT_ARRAY(reg, recr2, outer_header_fields_enable, 0x14, 0x14, 1);
static inline void mlxsw_reg_recr2_ipv4_sip_enable(char *payload)
{
int i;
/* reg_recr2_inner_header_enables
* Bit mask where each bit enables a specific inner layer to be included in the
* hash calculation. Same values as reg_recr2_outer_header_enables.
* Access: RW
*/
MLXSW_ITEM_BIT_ARRAY(reg, recr2, inner_header_enables, 0x2C, 0x04, 1);
for (i = MLXSW_REG_RECR2_IPV4_SIP0; i <= MLXSW_REG_RECR2_IPV4_SIP3; i++)
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i,
true);
}
enum {
/* Inner IPv4 Source IP */
MLXSW_REG_RECR2_INNER_IPV4_SIP0 = 3,
MLXSW_REG_RECR2_INNER_IPV4_SIP3 = 6,
/* Inner IPv4 Destination IP */
MLXSW_REG_RECR2_INNER_IPV4_DIP0 = 7,
MLXSW_REG_RECR2_INNER_IPV4_DIP3 = 10,
/* Inner IP Protocol */
MLXSW_REG_RECR2_INNER_IPV4_PROTOCOL = 11,
/* Inner IPv6 Source IP */
MLXSW_REG_RECR2_INNER_IPV6_SIP0_7 = 12,
MLXSW_REG_RECR2_INNER_IPV6_SIP8 = 20,
MLXSW_REG_RECR2_INNER_IPV6_SIP15 = 27,
/* Inner IPv6 Destination IP */
MLXSW_REG_RECR2_INNER_IPV6_DIP0_7 = 28,
MLXSW_REG_RECR2_INNER_IPV6_DIP8 = 36,
MLXSW_REG_RECR2_INNER_IPV6_DIP15 = 43,
/* Inner IPv6 Next Header */
MLXSW_REG_RECR2_INNER_IPV6_NEXT_HEADER = 44,
/* Inner IPv6 Flow Label */
MLXSW_REG_RECR2_INNER_IPV6_FLOW_LABEL = 45,
/* Inner TCP/UDP Source Port */
MLXSW_REG_RECR2_INNER_TCP_UDP_SPORT = 46,
/* Inner TCP/UDP Destination Port */
MLXSW_REG_RECR2_INNER_TCP_UDP_DPORT = 47,
static inline void mlxsw_reg_recr2_ipv4_dip_enable(char *payload)
{
int i;
__MLXSW_REG_RECR2_INNER_FIELD_CNT,
};
for (i = MLXSW_REG_RECR2_IPV4_DIP0; i <= MLXSW_REG_RECR2_IPV4_DIP3; i++)
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i,
true);
}
static inline void mlxsw_reg_recr2_ipv6_sip_enable(char *payload)
{
int i = MLXSW_REG_RECR2_IPV6_SIP0_7;
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i, true);
i = MLXSW_REG_RECR2_IPV6_SIP8;
for (; i <= MLXSW_REG_RECR2_IPV6_SIP15; i++)
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i,
true);
}
static inline void mlxsw_reg_recr2_ipv6_dip_enable(char *payload)
{
int i = MLXSW_REG_RECR2_IPV6_DIP0_7;
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i, true);
i = MLXSW_REG_RECR2_IPV6_DIP8;
for (; i <= MLXSW_REG_RECR2_IPV6_DIP15; i++)
mlxsw_reg_recr2_outer_header_fields_enable_set(payload, i,
true);
}
/* reg_recr2_inner_header_fields_enable
* Inner packet fields to enable for ECMP hash subject to inner_header_enables.
* Access: RW
*/
MLXSW_ITEM_BIT_ARRAY(reg, recr2, inner_header_fields_enable, 0x30, 0x08, 1);
static inline void mlxsw_reg_recr2_pack(char *payload, u32 seed)
{

View File

@ -9599,66 +9599,229 @@ static void mlxsw_sp_router_fib_dump_flush(struct notifier_block *nb)
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
static void mlxsw_sp_mp_hash_header_set(char *recr2_pl, int header)
struct mlxsw_sp_mp_hash_config {
DECLARE_BITMAP(headers, __MLXSW_REG_RECR2_HEADER_CNT);
DECLARE_BITMAP(fields, __MLXSW_REG_RECR2_FIELD_CNT);
DECLARE_BITMAP(inner_headers, __MLXSW_REG_RECR2_HEADER_CNT);
DECLARE_BITMAP(inner_fields, __MLXSW_REG_RECR2_INNER_FIELD_CNT);
};
#define MLXSW_SP_MP_HASH_HEADER_SET(_headers, _header) \
bitmap_set(_headers, MLXSW_REG_RECR2_##_header, 1)
#define MLXSW_SP_MP_HASH_FIELD_SET(_fields, _field) \
bitmap_set(_fields, MLXSW_REG_RECR2_##_field, 1)
#define MLXSW_SP_MP_HASH_FIELD_RANGE_SET(_fields, _field, _nr) \
bitmap_set(_fields, MLXSW_REG_RECR2_##_field, _nr)
static void mlxsw_sp_mp_hash_inner_l3(struct mlxsw_sp_mp_hash_config *config)
{
mlxsw_reg_recr2_outer_header_enables_set(recr2_pl, header, true);
unsigned long *inner_headers = config->inner_headers;
unsigned long *inner_fields = config->inner_fields;
/* IPv4 inner */
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV4_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV4_EN_TCP_UDP);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV4_SIP0, 4);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV4_DIP0, 4);
/* IPv6 inner */
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV6_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV6_EN_TCP_UDP);
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_SIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV6_SIP8, 8);
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_DIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV6_DIP8, 8);
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_NEXT_HEADER);
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_FLOW_LABEL);
}
static void mlxsw_sp_mp_hash_field_set(char *recr2_pl, int field)
static void mlxsw_sp_mp4_hash_outer_addr(struct mlxsw_sp_mp_hash_config *config)
{
mlxsw_reg_recr2_outer_header_fields_enable_set(recr2_pl, field, true);
unsigned long *headers = config->headers;
unsigned long *fields = config->fields;
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_TCP_UDP);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV4_SIP0, 4);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV4_DIP0, 4);
}
static void mlxsw_sp_mp4_hash_init(struct mlxsw_sp *mlxsw_sp, char *recr2_pl)
static void
mlxsw_sp_mp_hash_inner_custom(struct mlxsw_sp_mp_hash_config *config,
u32 hash_fields)
{
unsigned long *inner_headers = config->inner_headers;
unsigned long *inner_fields = config->inner_fields;
/* IPv4 Inner */
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV4_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV4_EN_TCP_UDP);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_SRC_IP)
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV4_SIP0, 4);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_DST_IP)
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV4_DIP0, 4);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_IP_PROTO)
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV4_PROTOCOL);
/* IPv6 inner */
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV6_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, IPV6_EN_TCP_UDP);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_SRC_IP) {
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_SIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV6_SIP8, 8);
}
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_DST_IP) {
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_DIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(inner_fields, INNER_IPV6_DIP8, 8);
}
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_IP_PROTO)
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_NEXT_HEADER);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_FLOWLABEL)
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_IPV6_FLOW_LABEL);
/* L4 inner */
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, TCP_UDP_EN_IPV4);
MLXSW_SP_MP_HASH_HEADER_SET(inner_headers, TCP_UDP_EN_IPV6);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_SRC_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_TCP_UDP_SPORT);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_INNER_DST_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(inner_fields, INNER_TCP_UDP_DPORT);
}
static void mlxsw_sp_mp4_hash_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_mp_hash_config *config)
{
struct net *net = mlxsw_sp_net(mlxsw_sp);
bool only_l3 = !net->ipv4.sysctl_fib_multipath_hash_policy;
unsigned long *headers = config->headers;
unsigned long *fields = config->fields;
u32 hash_fields;
mlxsw_sp_mp_hash_header_set(recr2_pl,
MLXSW_REG_RECR2_IPV4_EN_NOT_TCP_NOT_UDP);
mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV4_EN_TCP_UDP);
mlxsw_reg_recr2_ipv4_sip_enable(recr2_pl);
mlxsw_reg_recr2_ipv4_dip_enable(recr2_pl);
if (only_l3)
return;
mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_EN_IPV4);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV4_PROTOCOL);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_SPORT);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_DPORT);
switch (net->ipv4.sysctl_fib_multipath_hash_policy) {
case 0:
mlxsw_sp_mp4_hash_outer_addr(config);
break;
case 1:
mlxsw_sp_mp4_hash_outer_addr(config);
MLXSW_SP_MP_HASH_HEADER_SET(headers, TCP_UDP_EN_IPV4);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV4_PROTOCOL);
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_SPORT);
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_DPORT);
break;
case 2:
/* Outer */
mlxsw_sp_mp4_hash_outer_addr(config);
/* Inner */
mlxsw_sp_mp_hash_inner_l3(config);
break;
case 3:
hash_fields = net->ipv4.sysctl_fib_multipath_hash_fields;
/* Outer */
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_TCP_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, TCP_UDP_EN_IPV4);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_SRC_IP)
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV4_SIP0, 4);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_DST_IP)
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV4_DIP0, 4);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_IP_PROTO)
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV4_PROTOCOL);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_SRC_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_SPORT);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_DST_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_DPORT);
/* Inner */
mlxsw_sp_mp_hash_inner_custom(config, hash_fields);
break;
}
}
static void mlxsw_sp_mp6_hash_init(struct mlxsw_sp *mlxsw_sp, char *recr2_pl)
static void mlxsw_sp_mp6_hash_outer_addr(struct mlxsw_sp_mp_hash_config *config)
{
bool only_l3 = !ip6_multipath_hash_policy(mlxsw_sp_net(mlxsw_sp));
unsigned long *headers = config->headers;
unsigned long *fields = config->fields;
mlxsw_sp_mp_hash_header_set(recr2_pl,
MLXSW_REG_RECR2_IPV6_EN_NOT_TCP_NOT_UDP);
mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV6_EN_TCP_UDP);
mlxsw_reg_recr2_ipv6_sip_enable(recr2_pl);
mlxsw_reg_recr2_ipv6_dip_enable(recr2_pl);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_NEXT_HEADER);
if (only_l3) {
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_IPV6_FLOW_LABEL);
} else {
mlxsw_sp_mp_hash_header_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_EN_IPV6);
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_SPORT);
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_DPORT);
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV6_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV6_EN_TCP_UDP);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_SIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV6_SIP8, 8);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_DIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV6_DIP8, 8);
}
static void mlxsw_sp_mp6_hash_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_mp_hash_config *config)
{
u32 hash_fields = ip6_multipath_hash_fields(mlxsw_sp_net(mlxsw_sp));
unsigned long *headers = config->headers;
unsigned long *fields = config->fields;
switch (ip6_multipath_hash_policy(mlxsw_sp_net(mlxsw_sp))) {
case 0:
mlxsw_sp_mp6_hash_outer_addr(config);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_NEXT_HEADER);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_FLOW_LABEL);
break;
case 1:
mlxsw_sp_mp6_hash_outer_addr(config);
MLXSW_SP_MP_HASH_HEADER_SET(headers, TCP_UDP_EN_IPV6);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_NEXT_HEADER);
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_SPORT);
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_DPORT);
break;
case 2:
/* Outer */
mlxsw_sp_mp6_hash_outer_addr(config);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_NEXT_HEADER);
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_FLOW_LABEL);
/* Inner */
mlxsw_sp_mp_hash_inner_l3(config);
break;
case 3:
/* Outer */
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV6_EN_NOT_TCP_NOT_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV6_EN_TCP_UDP);
MLXSW_SP_MP_HASH_HEADER_SET(headers, TCP_UDP_EN_IPV6);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_SRC_IP) {
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_SIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV6_SIP8, 8);
}
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_DST_IP) {
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_DIP0_7);
MLXSW_SP_MP_HASH_FIELD_RANGE_SET(fields, IPV6_DIP8, 8);
}
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_IP_PROTO)
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_NEXT_HEADER);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_FLOWLABEL)
MLXSW_SP_MP_HASH_FIELD_SET(fields, IPV6_FLOW_LABEL);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_SRC_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_SPORT);
if (hash_fields & FIB_MULTIPATH_HASH_FIELD_DST_PORT)
MLXSW_SP_MP_HASH_FIELD_SET(fields, TCP_UDP_DPORT);
/* Inner */
mlxsw_sp_mp_hash_inner_custom(config, hash_fields);
break;
}
}
static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_mp_hash_config config = {};
char recr2_pl[MLXSW_REG_RECR2_LEN];
unsigned long bit;
u32 seed;
seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac), 0);
mlxsw_reg_recr2_pack(recr2_pl, seed);
mlxsw_sp_mp4_hash_init(mlxsw_sp, recr2_pl);
mlxsw_sp_mp6_hash_init(mlxsw_sp, recr2_pl);
mlxsw_sp_mp4_hash_init(mlxsw_sp, &config);
mlxsw_sp_mp6_hash_init(mlxsw_sp, &config);
for_each_set_bit(bit, config.headers, __MLXSW_REG_RECR2_HEADER_CNT)
mlxsw_reg_recr2_outer_header_enables_set(recr2_pl, bit, 1);
for_each_set_bit(bit, config.fields, __MLXSW_REG_RECR2_FIELD_CNT)
mlxsw_reg_recr2_outer_header_fields_enable_set(recr2_pl, bit, 1);
for_each_set_bit(bit, config.inner_headers, __MLXSW_REG_RECR2_HEADER_CNT)
mlxsw_reg_recr2_inner_header_enables_set(recr2_pl, bit, 1);
for_each_set_bit(bit, config.inner_fields, __MLXSW_REG_RECR2_INNER_FIELD_CNT)
mlxsw_reg_recr2_inner_header_fields_enable_set(recr2_pl, bit, 1);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(recr2), recr2_pl);
}

View File

@ -465,6 +465,22 @@ static int proc_fib_multipath_hash_policy(struct ctl_table *table, int write,
return ret;
}
static int proc_fib_multipath_hash_fields(struct ctl_table *table, int write,
void *buffer, size_t *lenp,
loff_t *ppos)
{
struct net *net;
int ret;
net = container_of(table->data, struct net,
ipv4.sysctl_fib_multipath_hash_fields);
ret = proc_douintvec_minmax(table, write, buffer, lenp, ppos);
if (write && ret == 0)
call_netevent_notifiers(NETEVENT_IPV4_MPATH_HASH_UPDATE, net);
return ret;
}
#endif
static struct ctl_table ipv4_table[] = {
@ -1061,7 +1077,7 @@ static struct ctl_table ipv4_net_table[] = {
.data = &init_net.ipv4.sysctl_fib_multipath_hash_fields,
.maxlen = sizeof(u32),
.mode = 0644,
.proc_handler = proc_douintvec_minmax,
.proc_handler = proc_fib_multipath_hash_fields,
.extra1 = SYSCTL_ONE,
.extra2 = &fib_multipath_hash_fields_all_mask,
},

View File

@ -44,6 +44,22 @@ static int proc_rt6_multipath_hash_policy(struct ctl_table *table, int write,
return ret;
}
static int
proc_rt6_multipath_hash_fields(struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos)
{
struct net *net;
int ret;
net = container_of(table->data, struct net,
ipv6.sysctl.multipath_hash_fields);
ret = proc_douintvec_minmax(table, write, buffer, lenp, ppos);
if (write && ret == 0)
call_netevent_notifiers(NETEVENT_IPV6_MPATH_HASH_UPDATE, net);
return ret;
}
static struct ctl_table ipv6_table_template[] = {
{
.procname = "bindv6only",
@ -160,7 +176,7 @@ static struct ctl_table ipv6_table_template[] = {
.data = &init_net.ipv6.sysctl.multipath_hash_fields,
.maxlen = sizeof(u32),
.mode = 0644,
.proc_handler = proc_douintvec_minmax,
.proc_handler = proc_rt6_multipath_hash_fields,
.extra1 = SYSCTL_ONE,
.extra2 = &rt6_multipath_hash_fields_all_mask,
},