diff options
Diffstat (limited to 'drivers/isdn/i4l/isdn_net.h')
| -rw-r--r-- | drivers/isdn/i4l/isdn_net.h | 69 |
1 files changed, 15 insertions, 54 deletions
diff --git a/drivers/isdn/i4l/isdn_net.h b/drivers/isdn/i4l/isdn_net.h index bc2f0dd962e..cca6d68da17 100644 --- a/drivers/isdn/i4l/isdn_net.h +++ b/drivers/isdn/i4l/isdn_net.h @@ -11,7 +11,7 @@ * */ - /* Definitions for hupflags: */ +/* Definitions for hupflags: */ #define ISDN_WAITCHARGE 1 /* did not get a charge info yet */ #define ISDN_HAVECHARGE 2 /* We know a charge info */ #define ISDN_CHARGEHUP 4 /* We want to use the charge mechanism */ @@ -56,6 +56,11 @@ extern void isdn_net_write_super(isdn_net_local *lp, struct sk_buff *skb); #define ISDN_NET_MAX_QUEUE_LENGTH 2 +#define ISDN_MASTER_PRIV(lp) ((isdn_net_local *) netdev_priv(lp->master)) +#define ISDN_SLAVE_PRIV(lp) ((isdn_net_local *) netdev_priv(lp->slave)) +#define MASTER_TO_SLAVE(master) \ + (((isdn_net_local *) netdev_priv(master))->slave) + /* * is this particular channel busy? */ @@ -63,7 +68,7 @@ static __inline__ int isdn_net_lp_busy(isdn_net_local *lp) { if (atomic_read(&lp->frame_cnt) < ISDN_NET_MAX_QUEUE_LENGTH) return 0; - else + else return 1; } @@ -71,26 +76,26 @@ static __inline__ int isdn_net_lp_busy(isdn_net_local *lp) * For the given net device, this will get a non-busy channel out of the * corresponding bundle. The returned channel is locked. */ -static __inline__ isdn_net_local * isdn_net_get_locked_lp(isdn_net_dev *nd) +static __inline__ isdn_net_local *isdn_net_get_locked_lp(isdn_net_dev *nd) { unsigned long flags; isdn_net_local *lp; spin_lock_irqsave(&nd->queue_lock, flags); lp = nd->queue; /* get lp on top of queue */ - spin_lock(&nd->queue->xmit_lock); while (isdn_net_lp_busy(nd->queue)) { - spin_unlock(&nd->queue->xmit_lock); nd->queue = nd->queue->next; if (nd->queue == lp) { /* not found -- should never happen */ lp = NULL; goto errout; } - spin_lock(&nd->queue->xmit_lock); } lp = nd->queue; nd->queue = nd->queue->next; + spin_unlock_irqrestore(&nd->queue_lock, flags); + spin_lock(&lp->xmit_lock); local_bh_disable(); + return lp; errout: spin_unlock_irqrestore(&nd->queue_lock, flags); return lp; @@ -108,7 +113,7 @@ static __inline__ void isdn_net_add_to_bundle(isdn_net_dev *nd, isdn_net_local * lp = nd->queue; // printk(KERN_DEBUG "%s: lp:%s(%p) nlp:%s(%p) last(%p)\n", -// __FUNCTION__, lp->name, lp, nlp->name, nlp, lp->last); +// __func__, lp->name, lp, nlp->name, nlp, lp->last); nlp->last = lp->last; lp->last->next = nlp; lp->last = nlp; @@ -126,10 +131,10 @@ static __inline__ void isdn_net_rm_from_bundle(isdn_net_local *lp) unsigned long flags; if (lp->master) - master_lp = (isdn_net_local *) lp->master->priv; + master_lp = ISDN_MASTER_PRIV(lp); // printk(KERN_DEBUG "%s: lp:%s(%p) mlp:%s(%p) last(%p) next(%p) mndq(%p)\n", -// __FUNCTION__, lp->name, lp, master_lp->name, master_lp, lp->last, lp->next, master_lp->netdev->queue); +// __func__, lp->name, lp, master_lp->name, master_lp, lp->last, lp->next, master_lp->netdev->queue); spin_lock_irqsave(&master_lp->netdev->queue_lock, flags); lp->last->next = lp->next; lp->next->last = lp->last; @@ -141,50 +146,6 @@ static __inline__ void isdn_net_rm_from_bundle(isdn_net_local *lp) } lp->next = lp->last = lp; /* (re)set own pointers */ // printk(KERN_DEBUG "%s: mndq(%p)\n", -// __FUNCTION__, master_lp->netdev->queue); +// __func__, master_lp->netdev->queue); spin_unlock_irqrestore(&master_lp->netdev->queue_lock, flags); } - -static inline int -put_u8(unsigned char *p, u8 x) -{ - *p = x; - return 1; -} - -static inline int -put_u16(unsigned char *p, u16 x) -{ - *((u16 *)p) = htons(x); - return 2; -} - -static inline int -put_u32(unsigned char *p, u32 x) -{ - *((u32 *)p) = htonl(x); - return 4; -} - -static inline int -get_u8(unsigned char *p, u8 *x) -{ - *x = *p; - return 1; -} - -static inline int -get_u16(unsigned char *p, u16 *x) -{ - *x = ntohs(*((u16 *)p)); - return 2; -} - -static inline int -get_u32(unsigned char *p, u32 *x) -{ - *x = ntohl(*((u32 *)p)); - return 4; -} - - |
