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[PATCH] aoe 2/12: allow multiple aoe devices with same MAC 

allow multiple aoe devices with same MAC addr

Signed-off-by: Ed L. Cashin <ecashin@coraid.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
ecashin@coraid.com 2005-04-18 22:00:18 -07:00 committed by Greg KH
parent fc458dcda2
commit 32465c6506
3 changed files with 8 additions and 8 deletions
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2
drivers/block/aoe/aoe.h
View File

@ -156,7 +156,7 @@ void aoecmd_cfg_rsp(struct sk_buff *);
int aoedev_init(void);
void aoedev_exit(void);
struct aoedev *aoedev_bymac(unsigned char *);
struct aoedev *aoedev_by_aoeaddr(int maj, int min);
void aoedev_downdev(struct aoedev *d);
struct aoedev *aoedev_set(ulong, unsigned char *, struct net_device *, ulong);
int aoedev_busy(void);

9
drivers/block/aoe/aoecmd.c
View File

@ -380,14 +380,15 @@ aoecmd_ata_rsp(struct sk_buff *skb)
register long n;
ulong flags;
char ebuf[128];
u16 aoemajor;
hin = (struct aoe_hdr *) skb->mac.raw;
d = aoedev_bymac(hin->src);
aoemajor = __be16_to_cpu(*((u16 *) hin->major));
d = aoedev_by_aoeaddr(aoemajor, hin->minor);
if (d == NULL) {
snprintf(ebuf, sizeof ebuf, "aoecmd_ata_rsp: ata response "
"for unknown device %d.%d\n",
__be16_to_cpu(*((u16 *) hin->major)),
hin->minor);
aoemajor, hin->minor);
aoechr_error(ebuf);
return;
}

5
drivers/block/aoe/aoedev.c
View File

@ -13,7 +13,7 @@ static struct aoedev *devlist;
static spinlock_t devlist_lock;
struct aoedev *
aoedev_bymac(unsigned char *macaddr)
aoedev_by_aoeaddr(int maj, int min)
{
struct aoedev *d;
ulong flags;
@ -21,7 +21,7 @@ aoedev_bymac(unsigned char *macaddr)
spin_lock_irqsave(&devlist_lock, flags);
for (d=devlist; d; d=d->next)
if (!memcmp(d->addr, macaddr, 6))
if (d->aoemajor == maj && d->aoeminor == min)
break;
spin_unlock_irqrestore(&devlist_lock, flags);
@ -125,7 +125,6 @@ aoedev_set(ulong sysminor, unsigned char *addr, struct net_device *ifp, ulong bu
d->ifp = ifp;
if (d->sysminor != sysminor
|| memcmp(d->addr, addr, sizeof d->addr)
|| (d->flags & DEVFL_UP) == 0) {
aoedev_downdev(d); /* flushes outstanding frames */
memcpy(d->addr, addr, sizeof d->addr);