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Code Issues Releases Activity

De-vnet hash sizes and hash masks.

Browse Source 
Submitted by:	Nikos Vassiliadis <nvass gmx.com>
Reviewed by:	trociny
This commit is contained in:
Gleb Smirnoff 2013-06-19 13:37:29 +00:00
parent fc335fdfd3
commit 6828cc99e1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/pf/head/; revision=251993
4 changed files with 45 additions and 49 deletions
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8
sys/net/pfvar.h
View File

@ -1659,19 +1659,17 @@ struct pf_idhash {
struct mtx lock;
};
extern u_long pf_hashmask;
extern u_long pf_srchashmask;
#define PF_HASHSIZ (32768)
VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
VNET_DECLARE(struct pf_idhash *, pf_idhash);
VNET_DECLARE(u_long, pf_hashmask);
#define V_pf_keyhash VNET(pf_keyhash)
#define V_pf_idhash VNET(pf_idhash)
#define V_pf_hashmask VNET(pf_hashmask)
VNET_DECLARE(struct pf_srchash *, pf_srchash);
VNET_DECLARE(u_long, pf_srchashmask);
#define V_pf_srchash VNET(pf_srchash)
#define V_pf_srchashmask VNET(pf_srchashmask)
#define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1))
#define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
VNET_DECLARE(void *, pf_swi_cookie);
#define V_pf_swi_cookie VNET(pf_swi_cookie)

4
sys/netpfil/pf/if_pfsync.c
View File

@ -683,7 +683,7 @@ pfsync_in_clr(struct pfsync_pkt *pkt, struct mbuf *m, int offset, int count)
pfi_kif_find(clr[i].ifname) == NULL)
continue;
for (int i = 0; i <= V_pf_hashmask; i++) {
for (int i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
struct pf_state *s;
relock:
@ -2045,7 +2045,7 @@ pfsync_bulk_update(void *arg)
else
i = sc->sc_bulk_hashid;
for (; i <= V_pf_hashmask; i++) {
for (; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
if (s != NULL)

64
sys/netpfil/pf/pf.c
View File

@ -353,21 +353,19 @@ VNET_DEFINE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
static MALLOC_DEFINE(M_PFHASH, "pf_hash", "pf(4) hash header structures");
VNET_DEFINE(struct pf_keyhash *, pf_keyhash);
VNET_DEFINE(struct pf_idhash *, pf_idhash);
VNET_DEFINE(u_long, pf_hashmask);
VNET_DEFINE(struct pf_srchash *, pf_srchash);
VNET_DEFINE(u_long, pf_srchashmask);
SYSCTL_NODE(_net, OID_AUTO, pf, CTLFLAG_RW, 0, "pf(4)");
VNET_DEFINE(u_long, pf_hashsize);
#define V_pf_hashsize VNET(pf_hashsize)
SYSCTL_VNET_UINT(_net_pf, OID_AUTO, states_hashsize, CTLFLAG_RDTUN,
&VNET_NAME(pf_hashsize), 0, "Size of pf(4) states hashtable");
u_long pf_hashmask;
u_long pf_srchashmask;
static u_long pf_hashsize;
static u_long pf_srchashsize;
VNET_DEFINE(u_long, pf_srchashsize);
#define V_pf_srchashsize VNET(pf_srchashsize)
SYSCTL_VNET_UINT(_net_pf, OID_AUTO, source_nodes_hashsize, CTLFLAG_RDTUN,
&VNET_NAME(pf_srchashsize), 0, "Size of pf(4) source nodes hashtable");
SYSCTL_UINT(_net_pf, OID_AUTO, states_hashsize, CTLFLAG_RDTUN,
&pf_hashsize, 0, "Size of pf(4) states hashtable");
SYSCTL_UINT(_net_pf, OID_AUTO, source_nodes_hashsize, CTLFLAG_RDTUN,
&pf_srchashsize, 0, "Size of pf(4) source nodes hashtable");
VNET_DEFINE(void *, pf_swi_cookie);
@ -383,7 +381,7 @@ pf_hashkey(struct pf_state_key *sk)
sizeof(struct pf_state_key_cmp)/sizeof(uint32_t),
V_pf_hashseed);
return (h & V_pf_hashmask);
return (h & pf_hashmask);
}
static __inline uint32_t
@ -404,7 +402,7 @@ pf_hashsrc(struct pf_addr *addr, sa_family_t af)
panic("%s: unknown address family %u", __func__, af);
}
return (h & V_pf_srchashmask);
return (h & pf_srchashmask);
}
#ifdef INET6
@ -566,7 +564,7 @@ pf_overload_task(void *c, int pending)
if (SLIST_EMPTY(&queue))
return;
for (int i = 0; i <= V_pf_hashmask; i++) {
for (int i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
struct pf_state_key *sk;
struct pf_state *s;
@ -698,12 +696,12 @@ pf_initialize()
struct pf_srchash *sh;
u_int i;
TUNABLE_ULONG_FETCH("net.pf.states_hashsize", &V_pf_hashsize);
if (V_pf_hashsize == 0 || !powerof2(V_pf_hashsize))
V_pf_hashsize = PF_HASHSIZ;
TUNABLE_ULONG_FETCH("net.pf.source_nodes_hashsize", &V_pf_srchashsize);
if (V_pf_srchashsize == 0 || !powerof2(V_pf_srchashsize))
V_pf_srchashsize = PF_HASHSIZ / 4;
TUNABLE_ULONG_FETCH("net.pf.states_hashsize", &pf_hashsize);
if (pf_hashsize == 0 || !powerof2(pf_hashsize))
pf_hashsize = PF_HASHSIZ;
TUNABLE_ULONG_FETCH("net.pf.source_nodes_hashsize", &pf_srchashsize);
if (pf_srchashsize == 0 || !powerof2(pf_srchashsize))
pf_srchashsize = PF_HASHSIZ / 4;
V_pf_hashseed = arc4random();
@ -717,12 +715,12 @@ pf_initialize()
V_pf_state_key_z = uma_zcreate("pf state keys",
sizeof(struct pf_state_key), pf_state_key_ctor, NULL, NULL, NULL,
UMA_ALIGN_PTR, 0);
V_pf_keyhash = malloc(V_pf_hashsize * sizeof(struct pf_keyhash),
V_pf_keyhash = malloc(pf_hashsize * sizeof(struct pf_keyhash),
M_PFHASH, M_WAITOK | M_ZERO);
V_pf_idhash = malloc(V_pf_hashsize * sizeof(struct pf_idhash),
V_pf_idhash = malloc(pf_hashsize * sizeof(struct pf_idhash),
M_PFHASH, M_WAITOK | M_ZERO);
V_pf_hashmask = V_pf_hashsize - 1;
for (i = 0, kh = V_pf_keyhash, ih = V_pf_idhash; i <= V_pf_hashmask;
pf_hashmask = pf_hashsize - 1;
for (i = 0, kh = V_pf_keyhash, ih = V_pf_idhash; i <= pf_hashmask;
i++, kh++, ih++) {
mtx_init(&kh->lock, "pf_keyhash", NULL, MTX_DEF | MTX_DUPOK);
mtx_init(&ih->lock, "pf_idhash", NULL, MTX_DEF);
@ -735,10 +733,10 @@ pf_initialize()
V_pf_limits[PF_LIMIT_SRC_NODES].zone = V_pf_sources_z;
uma_zone_set_max(V_pf_sources_z, PFSNODE_HIWAT);
uma_zone_set_warning(V_pf_sources_z, "PF source nodes limit reached");
V_pf_srchash = malloc(V_pf_srchashsize * sizeof(struct pf_srchash),
V_pf_srchash = malloc(pf_srchashsize * sizeof(struct pf_srchash),
M_PFHASH, M_WAITOK|M_ZERO);
V_pf_srchashmask = V_pf_srchashsize - 1;
for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; i++, sh++)
pf_srchashmask = pf_srchashsize - 1;
for (i = 0, sh = V_pf_srchash; i <= pf_srchashmask; i++, sh++)
mtx_init(&sh->lock, "pf_srchash", NULL, MTX_DEF);
/* ALTQ */
@ -775,7 +773,7 @@ pf_cleanup()
struct pf_send_entry *pfse, *next;
u_int i;
for (i = 0, kh = V_pf_keyhash, ih = V_pf_idhash; i <= V_pf_hashmask;
for (i = 0, kh = V_pf_keyhash, ih = V_pf_idhash; i <= pf_hashmask;
i++, kh++, ih++) {
KASSERT(LIST_EMPTY(&kh->keys), ("%s: key hash not empty",
__func__));
@ -787,7 +785,7 @@ pf_cleanup()
free(V_pf_keyhash, M_PFHASH);
free(V_pf_idhash, M_PFHASH);
for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; i++, sh++) {
for (i = 0, sh = V_pf_srchash; i <= pf_srchashmask; i++, sh++) {
KASSERT(LIST_EMPTY(&sh->nodes),
("%s: source node hash not empty", __func__));
mtx_destroy(&sh->lock);
@ -1177,7 +1175,7 @@ pf_find_state_byid(uint64_t id, uint32_t creatorid)
V_pf_status.fcounters[FCNT_STATE_SEARCH]++;
ih = &V_pf_idhash[(be64toh(id) % (V_pf_hashmask + 1))];
ih = &V_pf_idhash[(be64toh(id) % (pf_hashmask + 1))];
PF_HASHROW_LOCK(ih);
LIST_FOREACH(s, &ih->states, entry)
@ -1373,7 +1371,7 @@ pf_purge_thread(void *v)
/*
* Now purge everything.
*/
pf_purge_expired_states(0, V_pf_hashmask);
pf_purge_expired_states(0, pf_hashmask);
pf_purge_expired_fragments();
pf_purge_expired_src_nodes();
@ -1396,7 +1394,7 @@ pf_purge_thread(void *v)
PF_RULES_RUNLOCK();
/* Process 1/interval fraction of the state table every run. */
idx = pf_purge_expired_states(idx, V_pf_hashmask /
idx = pf_purge_expired_states(idx, pf_hashmask /
(V_pf_default_rule.timeout[PFTM_INTERVAL] * 10));
/* Purge other expired types every PFTM_INTERVAL seconds. */
@ -1462,7 +1460,7 @@ pf_purge_expired_src_nodes()
struct pf_src_node *cur, *next;
int i;
for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; i++, sh++) {
for (i = 0, sh = V_pf_srchash; i <= pf_srchashmask; i++, sh++) {
PF_HASHROW_LOCK(sh);
LIST_FOREACH_SAFE(cur, &sh->nodes, entry, next)
if (cur->states <= 0 && cur->expire <= time_uptime) {
@ -1614,7 +1612,7 @@ pf_purge_expired_states(u_int i, int maxcheck)
PF_HASHROW_UNLOCK(ih);
/* Return when we hit end of hash. */
if (++i > V_pf_hashmask) {
if (++i > pf_hashmask) {
V_pf_status.states = uma_zone_get_cur(V_pf_state_z);
return (0);
}

18
sys/netpfil/pf/pf_ioctl.c
View File

@ -1577,7 +1577,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
struct pfioc_state_kill *psk = (struct pfioc_state_kill *)addr;
u_int i, killed = 0;
for (i = 0; i <= V_pf_hashmask; i++) {
for (i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
relock_DIOCCLRSTATES:
@ -1622,7 +1622,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
break;
}
for (i = 0; i <= V_pf_hashmask; i++) {
for (i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
relock_DIOCKILLSTATES:
@ -1726,7 +1726,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
p = pstore = malloc(ps->ps_len, M_TEMP, M_WAITOK);
nr = 0;
for (i = 0; i <= V_pf_hashmask; i++) {
for (i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
PF_HASHROW_LOCK(ih);
@ -3078,7 +3078,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
uint32_t i, nr = 0;
if (psn->psn_len == 0) {
for (i = 0, sh = V_pf_srchash; i < V_pf_srchashmask;
for (i = 0, sh = V_pf_srchash; i < pf_srchashmask;
i++, sh++) {
PF_HASHROW_LOCK(sh);
LIST_FOREACH(n, &sh->nodes, entry)
@ -3090,7 +3090,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
}
p = pstore = malloc(psn->psn_len, M_TEMP, M_WAITOK);
for (i = 0, sh = V_pf_srchash; i < V_pf_srchashmask;
for (i = 0, sh = V_pf_srchash; i < pf_srchashmask;
i++, sh++) {
PF_HASHROW_LOCK(sh);
LIST_FOREACH(n, &sh->nodes, entry) {
@ -3147,7 +3147,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td
struct pf_src_node *sn;
u_int i, killed = 0;
for (i = 0, sh = V_pf_srchash; i < V_pf_srchashmask;
for (i = 0, sh = V_pf_srchash; i < pf_srchashmask;
i++, sh++) {
/*
* XXXGL: we don't ever acquire sources hash lock
@ -3331,7 +3331,7 @@ pf_clear_states(void)
struct pf_state *s;
u_int i;
for (i = 0; i <= V_pf_hashmask; i++) {
for (i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
relock:
PF_HASHROW_LOCK(ih);
@ -3366,7 +3366,7 @@ pf_clear_srcnodes(struct pf_src_node *n)
struct pf_state *s;
int i;
for (i = 0; i <= V_pf_hashmask; i++) {
for (i = 0; i <= pf_hashmask; i++) {
struct pf_idhash *ih = &V_pf_idhash[i];
PF_HASHROW_LOCK(ih);
@ -3382,7 +3382,7 @@ pf_clear_srcnodes(struct pf_src_node *n)
if (n == NULL) {
struct pf_srchash *sh;
for (i = 0, sh = V_pf_srchash; i < V_pf_srchashmask;
for (i = 0, sh = V_pf_srchash; i < pf_srchashmask;
i++, sh++) {
PF_HASHROW_LOCK(sh);
LIST_FOREACH(n, &sh->nodes, entry) {