* [PATCH ipvs-next] ipvs: avoid indirect calls when calculating checksums
@ 2019-01-19 14:22 Matteo Croce
2019-01-20 12:11 ` Julian Anastasov
0 siblings, 1 reply; 3+ messages in thread
From: Matteo Croce @ 2019-01-19 14:22 UTC (permalink / raw)
To: lvs-devel, netdev, netfilter-devel, coreteam, Simon Horman,
Julian Anastasov
Cc: Wensong Zhang
The function pointer ip_vs_protocol->csum_check is only used in protocol
specific code, and never in the generic one.
Remove the function pointer from struct ip_vs_protocol and call the
checksum functions directly.
This reduces the performance impact of the Spectre mitigation, and
should give a small improvement even with RETPOLINES disabled.
Signed-off-by: Matteo Croce <mcroce@redhat.com>
---
include/net/ip_vs.h | 3 ---
net/netfilter/ipvs/ip_vs_proto_ah_esp.c | 2 --
net/netfilter/ipvs/ip_vs_proto_sctp.c | 8 +++++---
net/netfilter/ipvs/ip_vs_proto_tcp.c | 12 +++++++-----
net/netfilter/ipvs/ip_vs_proto_udp.c | 12 +++++++-----
5 files changed, 19 insertions(+), 18 deletions(-)
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index a0d2e0bb9a94..047f9a5ccaad 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -453,9 +453,6 @@ struct ip_vs_protocol {
int (*dnat_handler)(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, struct ip_vs_iphdr *iph);
- int (*csum_check)(int af, struct sk_buff *skb,
- struct ip_vs_protocol *pp);
-
const char *(*state_name)(int state);
void (*state_transition)(struct ip_vs_conn *cp, int direction,
diff --git a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
index 5320d39976e1..480598cb0f05 100644
--- a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
@@ -129,7 +129,6 @@ struct ip_vs_protocol ip_vs_protocol_ah = {
.conn_out_get = ah_esp_conn_out_get,
.snat_handler = NULL,
.dnat_handler = NULL,
- .csum_check = NULL,
.state_transition = NULL,
.register_app = NULL,
.unregister_app = NULL,
@@ -152,7 +151,6 @@ struct ip_vs_protocol ip_vs_protocol_esp = {
.conn_out_get = ah_esp_conn_out_get,
.snat_handler = NULL,
.dnat_handler = NULL,
- .csum_check = NULL,
.state_transition = NULL,
.register_app = NULL,
.unregister_app = NULL,
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index b0cd7d08f2a7..bc3d1625ecc8 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -9,6 +9,9 @@
#include <net/sctp/checksum.h>
#include <net/ip_vs.h>
+static int
+sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
+
static int
sctp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
struct ip_vs_proto_data *pd,
@@ -105,7 +108,7 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!sctp_csum_check(cp->af, skb, pp))
return 0;
/* Call application helper if needed */
@@ -152,7 +155,7 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!sctp_csum_check(cp->af, skb, pp))
return 0;
/* Call application helper if needed */
@@ -587,7 +590,6 @@ struct ip_vs_protocol ip_vs_protocol_sctp = {
.conn_out_get = ip_vs_conn_out_get_proto,
.snat_handler = sctp_snat_handler,
.dnat_handler = sctp_dnat_handler,
- .csum_check = sctp_csum_check,
.state_name = sctp_state_name,
.state_transition = sctp_state_transition,
.app_conn_bind = sctp_app_conn_bind,
diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
index 1770fc6ce960..6a275f989085 100644
--- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
@@ -31,6 +31,9 @@
#include <net/ip_vs.h>
+static int
+tcp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
+
static int
tcp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
struct ip_vs_proto_data *pd,
@@ -166,7 +169,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!tcp_csum_check(cp->af, skb, pp))
return 0;
/* Call application helper if needed */
@@ -192,7 +195,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
tcp_fast_csum_update(cp->af, tcph, &cp->daddr, &cp->vaddr,
cp->dport, cp->vport);
if (skb->ip_summed == CHECKSUM_COMPLETE)
- skb->ip_summed = (cp->app && pp->csum_check) ?
+ skb->ip_summed = cp->app ?
CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
} else {
/* full checksum calculation */
@@ -244,7 +247,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!tcp_csum_check(cp->af, skb, pp))
return 0;
/*
@@ -275,7 +278,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
tcp_fast_csum_update(cp->af, tcph, &cp->vaddr, &cp->daddr,
cp->vport, cp->dport);
if (skb->ip_summed == CHECKSUM_COMPLETE)
- skb->ip_summed = (cp->app && pp->csum_check) ?
+ skb->ip_summed = cp->app ?
CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
} else {
/* full checksum calculation */
@@ -736,7 +739,6 @@ struct ip_vs_protocol ip_vs_protocol_tcp = {
.conn_out_get = ip_vs_conn_out_get_proto,
.snat_handler = tcp_snat_handler,
.dnat_handler = tcp_dnat_handler,
- .csum_check = tcp_csum_check,
.state_name = tcp_state_name,
.state_transition = tcp_state_transition,
.app_conn_bind = tcp_app_conn_bind,
diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c
index 0f53c49025f8..3285718264d5 100644
--- a/net/netfilter/ipvs/ip_vs_proto_udp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_udp.c
@@ -28,6 +28,9 @@
#include <net/ip.h>
#include <net/ip6_checksum.h>
+static int
+udp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
+
static int
udp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
struct ip_vs_proto_data *pd,
@@ -156,7 +159,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!udp_csum_check(cp->af, skb, pp))
return 0;
/*
@@ -186,7 +189,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
udp_fast_csum_update(cp->af, udph, &cp->daddr, &cp->vaddr,
cp->dport, cp->vport);
if (skb->ip_summed == CHECKSUM_COMPLETE)
- skb->ip_summed = (cp->app && pp->csum_check) ?
+ skb->ip_summed = cp->app ?
CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
} else {
/* full checksum calculation */
@@ -239,7 +242,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
int ret;
/* Some checks before mangling */
- if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
+ if (!udp_csum_check(cp->af, skb, pp))
return 0;
/*
@@ -270,7 +273,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
udp_fast_csum_update(cp->af, udph, &cp->vaddr, &cp->daddr,
cp->vport, cp->dport);
if (skb->ip_summed == CHECKSUM_COMPLETE)
- skb->ip_summed = (cp->app && pp->csum_check) ?
+ skb->ip_summed = cp->app ?
CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
} else {
/* full checksum calculation */
@@ -494,7 +497,6 @@ struct ip_vs_protocol ip_vs_protocol_udp = {
.conn_out_get = ip_vs_conn_out_get_proto,
.snat_handler = udp_snat_handler,
.dnat_handler = udp_dnat_handler,
- .csum_check = udp_csum_check,
.state_transition = udp_state_transition,
.state_name = udp_state_name,
.register_app = udp_register_app,
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH ipvs-next] ipvs: avoid indirect calls when calculating checksums
2019-01-19 14:22 [PATCH ipvs-next] ipvs: avoid indirect calls when calculating checksums Matteo Croce
@ 2019-01-20 12:11 ` Julian Anastasov
2019-01-23 12:50 ` Simon Horman
0 siblings, 1 reply; 3+ messages in thread
From: Julian Anastasov @ 2019-01-20 12:11 UTC (permalink / raw)
To: Matteo Croce
Cc: lvs-devel, netdev, netfilter-devel, coreteam, Simon Horman,
Wensong Zhang
Hello,
On Sat, 19 Jan 2019, Matteo Croce wrote:
> The function pointer ip_vs_protocol->csum_check is only used in protocol
> specific code, and never in the generic one.
> Remove the function pointer from struct ip_vs_protocol and call the
> checksum functions directly.
> This reduces the performance impact of the Spectre mitigation, and
> should give a small improvement even with RETPOLINES disabled.
>
> Signed-off-by: Matteo Croce <mcroce@redhat.com>
Looks good to me, thanks!
Acked-by: Julian Anastasov <ja@ssi.bg>
> ---
> include/net/ip_vs.h | 3 ---
> net/netfilter/ipvs/ip_vs_proto_ah_esp.c | 2 --
> net/netfilter/ipvs/ip_vs_proto_sctp.c | 8 +++++---
> net/netfilter/ipvs/ip_vs_proto_tcp.c | 12 +++++++-----
> net/netfilter/ipvs/ip_vs_proto_udp.c | 12 +++++++-----
> 5 files changed, 19 insertions(+), 18 deletions(-)
>
> diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
> index a0d2e0bb9a94..047f9a5ccaad 100644
> --- a/include/net/ip_vs.h
> +++ b/include/net/ip_vs.h
> @@ -453,9 +453,6 @@ struct ip_vs_protocol {
> int (*dnat_handler)(struct sk_buff *skb, struct ip_vs_protocol *pp,
> struct ip_vs_conn *cp, struct ip_vs_iphdr *iph);
>
> - int (*csum_check)(int af, struct sk_buff *skb,
> - struct ip_vs_protocol *pp);
> -
> const char *(*state_name)(int state);
>
> void (*state_transition)(struct ip_vs_conn *cp, int direction,
> diff --git a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> index 5320d39976e1..480598cb0f05 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> @@ -129,7 +129,6 @@ struct ip_vs_protocol ip_vs_protocol_ah = {
> .conn_out_get = ah_esp_conn_out_get,
> .snat_handler = NULL,
> .dnat_handler = NULL,
> - .csum_check = NULL,
> .state_transition = NULL,
> .register_app = NULL,
> .unregister_app = NULL,
> @@ -152,7 +151,6 @@ struct ip_vs_protocol ip_vs_protocol_esp = {
> .conn_out_get = ah_esp_conn_out_get,
> .snat_handler = NULL,
> .dnat_handler = NULL,
> - .csum_check = NULL,
> .state_transition = NULL,
> .register_app = NULL,
> .unregister_app = NULL,
> diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
> index b0cd7d08f2a7..bc3d1625ecc8 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
> @@ -9,6 +9,9 @@
> #include <net/sctp/checksum.h>
> #include <net/ip_vs.h>
>
> +static int
> +sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> +
> static int
> sctp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> struct ip_vs_proto_data *pd,
> @@ -105,7 +108,7 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!sctp_csum_check(cp->af, skb, pp))
> return 0;
>
> /* Call application helper if needed */
> @@ -152,7 +155,7 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!sctp_csum_check(cp->af, skb, pp))
> return 0;
>
> /* Call application helper if needed */
> @@ -587,7 +590,6 @@ struct ip_vs_protocol ip_vs_protocol_sctp = {
> .conn_out_get = ip_vs_conn_out_get_proto,
> .snat_handler = sctp_snat_handler,
> .dnat_handler = sctp_dnat_handler,
> - .csum_check = sctp_csum_check,
> .state_name = sctp_state_name,
> .state_transition = sctp_state_transition,
> .app_conn_bind = sctp_app_conn_bind,
> diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> index 1770fc6ce960..6a275f989085 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> @@ -31,6 +31,9 @@
>
> #include <net/ip_vs.h>
>
> +static int
> +tcp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> +
> static int
> tcp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> struct ip_vs_proto_data *pd,
> @@ -166,7 +169,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!tcp_csum_check(cp->af, skb, pp))
> return 0;
>
> /* Call application helper if needed */
> @@ -192,7 +195,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> tcp_fast_csum_update(cp->af, tcph, &cp->daddr, &cp->vaddr,
> cp->dport, cp->vport);
> if (skb->ip_summed == CHECKSUM_COMPLETE)
> - skb->ip_summed = (cp->app && pp->csum_check) ?
> + skb->ip_summed = cp->app ?
> CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> } else {
> /* full checksum calculation */
> @@ -244,7 +247,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!tcp_csum_check(cp->af, skb, pp))
> return 0;
>
> /*
> @@ -275,7 +278,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> tcp_fast_csum_update(cp->af, tcph, &cp->vaddr, &cp->daddr,
> cp->vport, cp->dport);
> if (skb->ip_summed == CHECKSUM_COMPLETE)
> - skb->ip_summed = (cp->app && pp->csum_check) ?
> + skb->ip_summed = cp->app ?
> CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> } else {
> /* full checksum calculation */
> @@ -736,7 +739,6 @@ struct ip_vs_protocol ip_vs_protocol_tcp = {
> .conn_out_get = ip_vs_conn_out_get_proto,
> .snat_handler = tcp_snat_handler,
> .dnat_handler = tcp_dnat_handler,
> - .csum_check = tcp_csum_check,
> .state_name = tcp_state_name,
> .state_transition = tcp_state_transition,
> .app_conn_bind = tcp_app_conn_bind,
> diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c
> index 0f53c49025f8..3285718264d5 100644
> --- a/net/netfilter/ipvs/ip_vs_proto_udp.c
> +++ b/net/netfilter/ipvs/ip_vs_proto_udp.c
> @@ -28,6 +28,9 @@
> #include <net/ip.h>
> #include <net/ip6_checksum.h>
>
> +static int
> +udp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> +
> static int
> udp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> struct ip_vs_proto_data *pd,
> @@ -156,7 +159,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!udp_csum_check(cp->af, skb, pp))
> return 0;
>
> /*
> @@ -186,7 +189,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> udp_fast_csum_update(cp->af, udph, &cp->daddr, &cp->vaddr,
> cp->dport, cp->vport);
> if (skb->ip_summed == CHECKSUM_COMPLETE)
> - skb->ip_summed = (cp->app && pp->csum_check) ?
> + skb->ip_summed = cp->app ?
> CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> } else {
> /* full checksum calculation */
> @@ -239,7 +242,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> int ret;
>
> /* Some checks before mangling */
> - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> + if (!udp_csum_check(cp->af, skb, pp))
> return 0;
>
> /*
> @@ -270,7 +273,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> udp_fast_csum_update(cp->af, udph, &cp->vaddr, &cp->daddr,
> cp->vport, cp->dport);
> if (skb->ip_summed == CHECKSUM_COMPLETE)
> - skb->ip_summed = (cp->app && pp->csum_check) ?
> + skb->ip_summed = cp->app ?
> CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> } else {
> /* full checksum calculation */
> @@ -494,7 +497,6 @@ struct ip_vs_protocol ip_vs_protocol_udp = {
> .conn_out_get = ip_vs_conn_out_get_proto,
> .snat_handler = udp_snat_handler,
> .dnat_handler = udp_dnat_handler,
> - .csum_check = udp_csum_check,
> .state_transition = udp_state_transition,
> .state_name = udp_state_name,
> .register_app = udp_register_app,
> --
> 2.20.1
Regards
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH ipvs-next] ipvs: avoid indirect calls when calculating checksums
2019-01-20 12:11 ` Julian Anastasov
@ 2019-01-23 12:50 ` Simon Horman
0 siblings, 0 replies; 3+ messages in thread
From: Simon Horman @ 2019-01-23 12:50 UTC (permalink / raw)
To: Julian Anastasov
Cc: Matteo Croce, lvs-devel, netdev, netfilter-devel, coreteam,
Wensong Zhang
On Sun, Jan 20, 2019 at 02:11:31PM +0200, Julian Anastasov wrote:
>
> Hello,
>
> On Sat, 19 Jan 2019, Matteo Croce wrote:
>
> > The function pointer ip_vs_protocol->csum_check is only used in protocol
> > specific code, and never in the generic one.
> > Remove the function pointer from struct ip_vs_protocol and call the
> > checksum functions directly.
> > This reduces the performance impact of the Spectre mitigation, and
> > should give a small improvement even with RETPOLINES disabled.
> >
> > Signed-off-by: Matteo Croce <mcroce@redhat.com>
>
> Looks good to me, thanks!
>
> Acked-by: Julian Anastasov <ja@ssi.bg>
Likewise, Pablo could you consider applying this to nf-next?
Acked-by: Simon Horman <horms@verge.net.au>
>
> > ---
> > include/net/ip_vs.h | 3 ---
> > net/netfilter/ipvs/ip_vs_proto_ah_esp.c | 2 --
> > net/netfilter/ipvs/ip_vs_proto_sctp.c | 8 +++++---
> > net/netfilter/ipvs/ip_vs_proto_tcp.c | 12 +++++++-----
> > net/netfilter/ipvs/ip_vs_proto_udp.c | 12 +++++++-----
> > 5 files changed, 19 insertions(+), 18 deletions(-)
> >
> > diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
> > index a0d2e0bb9a94..047f9a5ccaad 100644
> > --- a/include/net/ip_vs.h
> > +++ b/include/net/ip_vs.h
> > @@ -453,9 +453,6 @@ struct ip_vs_protocol {
> > int (*dnat_handler)(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > struct ip_vs_conn *cp, struct ip_vs_iphdr *iph);
> >
> > - int (*csum_check)(int af, struct sk_buff *skb,
> > - struct ip_vs_protocol *pp);
> > -
> > const char *(*state_name)(int state);
> >
> > void (*state_transition)(struct ip_vs_conn *cp, int direction,
> > diff --git a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> > index 5320d39976e1..480598cb0f05 100644
> > --- a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> > +++ b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
> > @@ -129,7 +129,6 @@ struct ip_vs_protocol ip_vs_protocol_ah = {
> > .conn_out_get = ah_esp_conn_out_get,
> > .snat_handler = NULL,
> > .dnat_handler = NULL,
> > - .csum_check = NULL,
> > .state_transition = NULL,
> > .register_app = NULL,
> > .unregister_app = NULL,
> > @@ -152,7 +151,6 @@ struct ip_vs_protocol ip_vs_protocol_esp = {
> > .conn_out_get = ah_esp_conn_out_get,
> > .snat_handler = NULL,
> > .dnat_handler = NULL,
> > - .csum_check = NULL,
> > .state_transition = NULL,
> > .register_app = NULL,
> > .unregister_app = NULL,
> > diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
> > index b0cd7d08f2a7..bc3d1625ecc8 100644
> > --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
> > +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
> > @@ -9,6 +9,9 @@
> > #include <net/sctp/checksum.h>
> > #include <net/ip_vs.h>
> >
> > +static int
> > +sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> > +
> > static int
> > sctp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> > struct ip_vs_proto_data *pd,
> > @@ -105,7 +108,7 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!sctp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /* Call application helper if needed */
> > @@ -152,7 +155,7 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!sctp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /* Call application helper if needed */
> > @@ -587,7 +590,6 @@ struct ip_vs_protocol ip_vs_protocol_sctp = {
> > .conn_out_get = ip_vs_conn_out_get_proto,
> > .snat_handler = sctp_snat_handler,
> > .dnat_handler = sctp_dnat_handler,
> > - .csum_check = sctp_csum_check,
> > .state_name = sctp_state_name,
> > .state_transition = sctp_state_transition,
> > .app_conn_bind = sctp_app_conn_bind,
> > diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> > index 1770fc6ce960..6a275f989085 100644
> > --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
> > +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> > @@ -31,6 +31,9 @@
> >
> > #include <net/ip_vs.h>
> >
> > +static int
> > +tcp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> > +
> > static int
> > tcp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> > struct ip_vs_proto_data *pd,
> > @@ -166,7 +169,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!tcp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /* Call application helper if needed */
> > @@ -192,7 +195,7 @@ tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > tcp_fast_csum_update(cp->af, tcph, &cp->daddr, &cp->vaddr,
> > cp->dport, cp->vport);
> > if (skb->ip_summed == CHECKSUM_COMPLETE)
> > - skb->ip_summed = (cp->app && pp->csum_check) ?
> > + skb->ip_summed = cp->app ?
> > CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> > } else {
> > /* full checksum calculation */
> > @@ -244,7 +247,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!tcp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /*
> > @@ -275,7 +278,7 @@ tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > tcp_fast_csum_update(cp->af, tcph, &cp->vaddr, &cp->daddr,
> > cp->vport, cp->dport);
> > if (skb->ip_summed == CHECKSUM_COMPLETE)
> > - skb->ip_summed = (cp->app && pp->csum_check) ?
> > + skb->ip_summed = cp->app ?
> > CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> > } else {
> > /* full checksum calculation */
> > @@ -736,7 +739,6 @@ struct ip_vs_protocol ip_vs_protocol_tcp = {
> > .conn_out_get = ip_vs_conn_out_get_proto,
> > .snat_handler = tcp_snat_handler,
> > .dnat_handler = tcp_dnat_handler,
> > - .csum_check = tcp_csum_check,
> > .state_name = tcp_state_name,
> > .state_transition = tcp_state_transition,
> > .app_conn_bind = tcp_app_conn_bind,
> > diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c
> > index 0f53c49025f8..3285718264d5 100644
> > --- a/net/netfilter/ipvs/ip_vs_proto_udp.c
> > +++ b/net/netfilter/ipvs/ip_vs_proto_udp.c
> > @@ -28,6 +28,9 @@
> > #include <net/ip.h>
> > #include <net/ip6_checksum.h>
> >
> > +static int
> > +udp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp);
> > +
> > static int
> > udp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
> > struct ip_vs_proto_data *pd,
> > @@ -156,7 +159,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!udp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /*
> > @@ -186,7 +189,7 @@ udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > udp_fast_csum_update(cp->af, udph, &cp->daddr, &cp->vaddr,
> > cp->dport, cp->vport);
> > if (skb->ip_summed == CHECKSUM_COMPLETE)
> > - skb->ip_summed = (cp->app && pp->csum_check) ?
> > + skb->ip_summed = cp->app ?
> > CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> > } else {
> > /* full checksum calculation */
> > @@ -239,7 +242,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > int ret;
> >
> > /* Some checks before mangling */
> > - if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
> > + if (!udp_csum_check(cp->af, skb, pp))
> > return 0;
> >
> > /*
> > @@ -270,7 +273,7 @@ udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
> > udp_fast_csum_update(cp->af, udph, &cp->vaddr, &cp->daddr,
> > cp->vport, cp->dport);
> > if (skb->ip_summed == CHECKSUM_COMPLETE)
> > - skb->ip_summed = (cp->app && pp->csum_check) ?
> > + skb->ip_summed = cp->app ?
> > CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
> > } else {
> > /* full checksum calculation */
> > @@ -494,7 +497,6 @@ struct ip_vs_protocol ip_vs_protocol_udp = {
> > .conn_out_get = ip_vs_conn_out_get_proto,
> > .snat_handler = udp_snat_handler,
> > .dnat_handler = udp_dnat_handler,
> > - .csum_check = udp_csum_check,
> > .state_transition = udp_state_transition,
> > .state_name = udp_state_name,
> > .register_app = udp_register_app,
> > --
> > 2.20.1
>
> Regards
>
> --
> Julian Anastasov <ja@ssi.bg>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-01-23 12:50 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2019-01-19 14:22 [PATCH ipvs-next] ipvs: avoid indirect calls when calculating checksums Matteo Croce
2019-01-20 12:11 ` Julian Anastasov
2019-01-23 12:50 ` Simon Horman
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