static inline struct sk_buff * osl_pktfastget(osl_t *osh, uint len) { struct sk_buff *skb; #ifdef CTFPOOL_SPINLOCK unsigned long flags; #endif /* CTFPOOL_SPINLOCK */ /* Try to do fast allocate. Return null if ctfpool is not in use * or if there are no items in the ctfpool. */ if (osh->ctfpool == NULL) return NULL; CTFPOOL_LOCK(osh->ctfpool, flags); if (osh->ctfpool->head == NULL) { ASSERT(osh->ctfpool->curr_obj == 0); osh->ctfpool->slow_allocs++; CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } if (len > osh->ctfpool->obj_size) { CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } ASSERT(len <= osh->ctfpool->obj_size); /* Get an object from ctfpool */ skb = (struct sk_buff *)osh->ctfpool->head; osh->ctfpool->head = (void *)skb->next; osh->ctfpool->fast_allocs++; osh->ctfpool->curr_obj--; ASSERT(CTFPOOLHEAD(osh, skb) == (struct sock *)osh->ctfpool->head); CTFPOOL_UNLOCK(osh->ctfpool, flags); /* Init skb struct */ skb->next = skb->prev = NULL; #if defined(__ARM_ARCH_7A__) skb->data = skb->head + NET_SKB_PAD; skb->tail = skb->head + NET_SKB_PAD; #else skb->data = skb->head + 16; skb->tail = skb->head + 16; #endif /* __ARM_ARCH_7A__ */ skb->len = 0; skb->cloned = 0; #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14) skb->list = NULL; #endif atomic_set(&skb->users, 1); PKTSETCLINK(skb, NULL); PKTCCLRATTR(skb); PKTFAST(osh, skb) &= ~(CTFBUF | SKIPCT | CHAINED); return skb; }
void * osl_ctfpool_add(osl_t *osh) { struct sk_buff *skb; #ifdef CTFPOOL_SPINLOCK unsigned long flags; #endif if ((osh == NULL) || (osh->ctfpool == NULL)) return NULL; CTFPOOL_LOCK(osh->ctfpool, flags); ASSERT(osh->ctfpool->curr_obj <= osh->ctfpool->max_obj); if (osh->ctfpool->curr_obj == osh->ctfpool->max_obj) { CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } skb = osl_alloc_skb(osh->ctfpool->obj_size); if (skb == NULL) { printf("%s: skb alloc of len %d failed\n", __FUNCTION__, osh->ctfpool->obj_size); CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } skb->next = (struct sk_buff *)osh->ctfpool->head; osh->ctfpool->head = skb; osh->ctfpool->fast_frees++; osh->ctfpool->curr_obj++; CTFPOOLPTR(osh, skb) = (void *)osh->ctfpool; PKTFAST(osh, skb) = FASTBUF; CTFPOOL_UNLOCK(osh->ctfpool, flags); return skb; }
/* * Allocate and add an object to packet pool. */ void * osl_ctfpool_add(osl_t *osh) { struct sk_buff *skb; #ifdef CTFPOOL_SPINLOCK unsigned long flags; #endif /* CTFPOOL_SPINLOCK */ if ((osh == NULL) || (osh->ctfpool == NULL)) return NULL; CTFPOOL_LOCK(osh->ctfpool, flags); ASSERT(osh->ctfpool->curr_obj <= osh->ctfpool->max_obj); /* No need to allocate more objects */ if (osh->ctfpool->curr_obj == osh->ctfpool->max_obj) { CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } /* Allocate a new skb and add it to the ctfpool */ skb = osl_alloc_skb(osh, osh->ctfpool->obj_size); if (skb == NULL) { printf("%s: skb alloc of len %d failed\n", __FUNCTION__, osh->ctfpool->obj_size); CTFPOOL_UNLOCK(osh->ctfpool, flags); return NULL; } /* Add to ctfpool */ skb->next = (struct sk_buff *)osh->ctfpool->head; osh->ctfpool->head = skb; osh->ctfpool->fast_frees++; osh->ctfpool->curr_obj++; /* Hijack a skb member to store ptr to ctfpool */ CTFPOOLPTR(osh, skb) = (void *)osh->ctfpool; /* Use bit flag to indicate skb from fast ctfpool */ PKTFAST(osh, skb) = FASTBUF; CTFPOOL_UNLOCK(osh->ctfpool, flags); return skb; }
void * osl_ctfpool_add(osl_t *osh) { struct sk_buff *skb; if ((osh == NULL) || (osh->ctfpool == NULL)) return NULL; spin_lock_bh(&osh->ctfpool->lock); ASSERT(osh->ctfpool->curr_obj <= osh->ctfpool->max_obj); if (osh->ctfpool->curr_obj == osh->ctfpool->max_obj) { spin_unlock_bh(&osh->ctfpool->lock); return NULL; } skb = osl_alloc_skb(osh->ctfpool->obj_size); if (skb == NULL) { printf("%s: skb alloc of len %d failed\n", __FUNCTION__, osh->ctfpool->obj_size); spin_unlock_bh(&osh->ctfpool->lock); return NULL; } skb->next = (struct sk_buff *)osh->ctfpool->head; osh->ctfpool->head = skb; osh->ctfpool->fast_frees++; osh->ctfpool->curr_obj++; CTFPOOLPTR(osh, skb) = (void *)osh->ctfpool; PKTFAST(osh, skb) = FASTBUF; spin_unlock_bh(&osh->ctfpool->lock); return skb; }
/* * Allocate and add an object to packet pool. */ void * osl_ctfpool_add(osl_t *osh) { struct sk_buff *skb; if ((osh == NULL) || (osh->ctfpool == NULL)) return NULL; spin_lock_bh(&osh->ctfpool->lock); ASSERT(osh->ctfpool->curr_obj <= osh->ctfpool->max_obj); /* No need to allocate more objects */ if (osh->ctfpool->curr_obj == osh->ctfpool->max_obj) { spin_unlock_bh(&osh->ctfpool->lock); return NULL; } /* Allocate a new skb and add it to the ctfpool */ skb = dev_alloc_skb(osh->ctfpool->obj_size); if (skb == NULL) { printf("%s: skb alloc of len %d failed\n", __FUNCTION__, osh->ctfpool->obj_size); spin_unlock_bh(&osh->ctfpool->lock); return NULL; } /* Add to ctfpool */ skb->next = (struct sk_buff *)osh->ctfpool->head; osh->ctfpool->head = skb; osh->ctfpool->fast_frees++; osh->ctfpool->curr_obj++; /* Hijack a skb member to store ptr to ctfpool */ CTFPOOLPTR(osh, skb) = (void *)osh->ctfpool; /* Use bit flag to indicate skb from fast ctfpool */ PKTFAST(osh, skb) = FASTBUF; spin_unlock_bh(&osh->ctfpool->lock); return skb; }