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IPVS: Add IPv6 support flag to schedulers
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Add 'supports_ipv6' flag to struct ip_vs_scheduler to indicate whether a
scheduler supports IPv6. Set the flag to 1 in schedulers that work with
IPv6, 0 otherwise. This flag is checked in a later patch while trying to
add a service with a specific scheduler. Adjust debug in v6-supporting
schedulers to work with both address families.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
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Julius Volz authored and Simon Horman committed Sep 5, 2008
1 parent 3c2e050 commit b14198f
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Showing 11 changed files with 66 additions and 33 deletions.
3 changes: 3 additions & 0 deletions include/net/ip_vs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -516,6 +516,9 @@ struct ip_vs_scheduler {
char *name; /* scheduler name */
atomic_t refcnt; /* reference counter */
struct module *module; /* THIS_MODULE/NULL */
#ifdef CONFIG_IP_VS_IPV6
int supports_ipv6; /* scheduler has IPv6 support */
#endif

/* scheduler initializing service */
int (*init_service)(struct ip_vs_service *svc);
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3 changes: 3 additions & 0 deletions net/ipv4/ipvs/ip_vs_dh.c
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Expand Up @@ -234,6 +234,9 @@ static struct ip_vs_scheduler ip_vs_dh_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_dh_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 0,
#endif
.init_service = ip_vs_dh_init_svc,
.done_service = ip_vs_dh_done_svc,
.update_service = ip_vs_dh_update_svc,
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3 changes: 3 additions & 0 deletions net/ipv4/ipvs/ip_vs_lblc.c
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Expand Up @@ -522,6 +522,9 @@ static struct ip_vs_scheduler ip_vs_lblc_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_lblc_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 0,
#endif
.init_service = ip_vs_lblc_init_svc,
.done_service = ip_vs_lblc_done_svc,
.schedule = ip_vs_lblc_schedule,
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3 changes: 3 additions & 0 deletions net/ipv4/ipvs/ip_vs_lblcr.c
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Expand Up @@ -722,6 +722,9 @@ static struct ip_vs_scheduler ip_vs_lblcr_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_lblcr_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 0,
#endif
.init_service = ip_vs_lblcr_init_svc,
.done_service = ip_vs_lblcr_done_svc,
.schedule = ip_vs_lblcr_schedule,
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11 changes: 7 additions & 4 deletions net/ipv4/ipvs/ip_vs_lc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -67,10 +67,10 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}

if (least)
IP_VS_DBG(6, "LC: server %u.%u.%u.%u:%u activeconns %d inactconns %d\n",
NIPQUAD(least->addr.ip), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->inactconns));
IP_VS_DBG_BUF(6, "LC: server %s:%u activeconns %d inactconns %d\n",
IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->inactconns));

return least;
}
Expand All @@ -81,6 +81,9 @@ static struct ip_vs_scheduler ip_vs_lc_scheduler = {
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_lc_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.schedule = ip_vs_lc_schedule,
};

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15 changes: 9 additions & 6 deletions net/ipv4/ipvs/ip_vs_nq.c
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Original file line number Diff line number Diff line change
Expand Up @@ -99,12 +99,12 @@ ip_vs_nq_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
return NULL;

out:
IP_VS_DBG(6, "NQ: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
NIPQUAD(least->addr.ip), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);
IP_VS_DBG_BUF(6, "NQ: server %s:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);

return least;
}
Expand All @@ -116,6 +116,9 @@ static struct ip_vs_scheduler ip_vs_nq_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_nq_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.schedule = ip_vs_nq_schedule,
};

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13 changes: 8 additions & 5 deletions net/ipv4/ipvs/ip_vs_rr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -74,11 +74,11 @@ ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
out:
svc->sched_data = q;
write_unlock(&svc->sched_lock);
IP_VS_DBG(6, "RR: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d\n",
NIPQUAD(dest->addr.ip), ntohs(dest->port),
atomic_read(&dest->activeconns),
atomic_read(&dest->refcnt), atomic_read(&dest->weight));
IP_VS_DBG_BUF(6, "RR: server %s:%u "
"activeconns %d refcnt %d weight %d\n",
IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port),
atomic_read(&dest->activeconns),
atomic_read(&dest->refcnt), atomic_read(&dest->weight));

return dest;
}
Expand All @@ -89,6 +89,9 @@ static struct ip_vs_scheduler ip_vs_rr_scheduler = {
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_rr_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.init_service = ip_vs_rr_init_svc,
.update_service = ip_vs_rr_update_svc,
.schedule = ip_vs_rr_schedule,
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15 changes: 9 additions & 6 deletions net/ipv4/ipvs/ip_vs_sed.c
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Expand Up @@ -101,12 +101,12 @@ ip_vs_sed_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}
}

IP_VS_DBG(6, "SED: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
NIPQUAD(least->addr.ip), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);
IP_VS_DBG_BUF(6, "SED: server %s:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);

return least;
}
Expand All @@ -118,6 +118,9 @@ static struct ip_vs_scheduler ip_vs_sed_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_sed_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.schedule = ip_vs_sed_schedule,
};

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3 changes: 3 additions & 0 deletions net/ipv4/ipvs/ip_vs_sh.c
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,9 @@ static struct ip_vs_scheduler ip_vs_sh_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_sh_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 0,
#endif
.init_service = ip_vs_sh_init_svc,
.done_service = ip_vs_sh_done_svc,
.update_service = ip_vs_sh_update_svc,
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15 changes: 9 additions & 6 deletions net/ipv4/ipvs/ip_vs_wlc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -89,12 +89,12 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}
}

IP_VS_DBG(6, "WLC: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
NIPQUAD(least->addr.ip), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);
IP_VS_DBG_BUF(6, "WLC: server %s:%u "
"activeconns %d refcnt %d weight %d overhead %d\n",
IP_VS_DBG_ADDR(svc->af, &least->addr), ntohs(least->port),
atomic_read(&least->activeconns),
atomic_read(&least->refcnt),
atomic_read(&least->weight), loh);

return least;
}
Expand All @@ -106,6 +106,9 @@ static struct ip_vs_scheduler ip_vs_wlc_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_wlc_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.schedule = ip_vs_wlc_schedule,
};

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15 changes: 9 additions & 6 deletions net/ipv4/ipvs/ip_vs_wrr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -195,12 +195,12 @@ ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
}
}

IP_VS_DBG(6, "WRR: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d\n",
NIPQUAD(dest->addr.ip), ntohs(dest->port),
atomic_read(&dest->activeconns),
atomic_read(&dest->refcnt),
atomic_read(&dest->weight));
IP_VS_DBG_BUF(6, "WRR: server %s:%u "
"activeconns %d refcnt %d weight %d\n",
IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port),
atomic_read(&dest->activeconns),
atomic_read(&dest->refcnt),
atomic_read(&dest->weight));

out:
write_unlock(&svc->sched_lock);
Expand All @@ -213,6 +213,9 @@ static struct ip_vs_scheduler ip_vs_wrr_scheduler = {
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_wrr_scheduler.n_list),
#ifdef CONFIG_IP_VS_IPV6
.supports_ipv6 = 1,
#endif
.init_service = ip_vs_wrr_init_svc,
.done_service = ip_vs_wrr_done_svc,
.update_service = ip_vs_wrr_update_svc,
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