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Code Issues Releases Activity

switch vlan packet tag allocation to use a private zone

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This commit is contained in:
Sam Leffler 2004-01-02 17:31:51 +00:00
parent 4f9f9cf3a4
commit dfffd5d472
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=124078
2 changed files with 29 additions and 6 deletions
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30
sys/net/if_vlan.c
View File

@ -53,6 +53,7 @@
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <vm/uma.h>
#include <net/bpf.h>
#include <net/ethernet.h>
@ -101,6 +102,7 @@ SYSCTL_DECL(_net_link);
SYSCTL_NODE(_net_link, IFT_L2VLAN, vlan, CTLFLAG_RW, 0, "IEEE 802.1Q VLAN");
SYSCTL_NODE(_net_link_vlan, PF_LINK, link, CTLFLAG_RW, 0, "for consistency");
static uma_zone_t vlan_zone; /* for vlan packet tags */
static MALLOC_DEFINE(M_VLAN, VLANNAME, "802.1Q Virtual LAN Interface");
static LIST_HEAD(, ifvlan) ifv_list;
@ -217,6 +219,9 @@ vlan_modevent(module_t mod, int type, void *data)
case MOD_LOAD:
LIST_INIT(&ifv_list);
VLAN_LOCK_INIT();
vlan_zone = uma_zcreate("vlan",
sizeof(struct m_tag)+sizeof(u_int),
NULL, NULL, NULL, NULL, UMA_ALIGN_INT, 0);
vlan_input_p = vlan_input;
if_clone_attach(&vlan_cloner);
break;
@ -225,6 +230,7 @@ vlan_modevent(module_t mod, int type, void *data)
vlan_input_p = NULL;
while (!LIST_EMPTY(&ifv_list))
vlan_clone_destroy(&LIST_FIRST(&ifv_list)->ifv_if);
uma_zdestroy(vlan_zone);
VLAN_LOCK_DESTROY();
break;
}
@ -294,6 +300,25 @@ vlan_ifinit(void *foo)
return;
}
static void
vlan_tag_free(struct m_tag *t)
{
uma_zfree(vlan_zone, t);
}
struct m_tag *
vlan_tag_alloc(int flags)
{
struct m_tag *mtag;
mtag = uma_zalloc(vlan_zone, flags);
if (mtag) {
m_tag_setup(mtag, MTAG_VLAN, MTAG_VLAN_TAG, sizeof(u_int));
mtag->m_tag_free = vlan_tag_free;
}
return mtag;
}
static void
vlan_start(struct ifnet *ifp)
{
@ -331,10 +356,7 @@ vlan_start(struct ifnet *ifp)
* packet tag that holds it.
*/
if (p->if_capabilities & IFCAP_VLAN_HWTAGGING) {
struct m_tag *mtag = m_tag_alloc(MTAG_VLAN,
MTAG_VLAN_TAG,
sizeof (u_int),
M_NOWAIT);
struct m_tag *mtag = vlan_tag_alloc(M_NOWAIT);
if (mtag == NULL) {
ifp->if_oerrors++;
m_freem(m);

5
sys/net/if_vlan_var.h
View File

@ -98,8 +98,7 @@ struct vlanreq {
#define VLAN_INPUT_TAG(_ifp, _m, _t, _errcase) do { \
struct m_tag *mtag; \
mtag = m_tag_alloc(MTAG_VLAN, MTAG_VLAN_TAG, \
sizeof (u_int), M_NOWAIT); \
mtag = vlan_tag_alloc(M_NOWAIT); \
if (mtag == NULL) { \
(_ifp)->if_ierrors++; \
m_freem(_m); \
@ -113,6 +112,8 @@ struct vlanreq {
((_ifp)->if_nvlans != 0 ? \
m_tag_locate((_m), MTAG_VLAN, MTAG_VLAN_TAG, NULL) : NULL)
#define VLAN_TAG_VALUE(_mt) (*(u_int *)((_mt)+1))
extern struct m_tag *vlan_tag_alloc(int flags);
#endif /* _KERNEL */
#endif /* _NET_IF_VLAN_VAR_H_ */