Lines Matching refs:scq
114 #define scq_virt_to_bus(scq, p) \ argument
115 (scq->dma + ((unsigned long)(p) - (unsigned long)(scq)->org))
125 static void free_scq(ns_dev *card, scq_info * scq, struct atm_vcc *vcc);
132 static int push_scqe(ns_dev * card, vc_map * vc, scq_info * scq, ns_scqe * tbd,
135 static void drain_scq(ns_dev * card, scq_info * scq, int pos);
244 free_scq(card, card->scd2vc[j]->scq, card->scd2vc[j]->tx_vcc); in nicstar_remove_one()
859 scq_info *scq; in get_scq() local
865 scq = kmalloc(sizeof(scq_info), GFP_KERNEL); in get_scq()
866 if (!scq) in get_scq()
868 scq->org = dma_alloc_coherent(&card->pcidev->dev, in get_scq()
869 2 * size, &scq->dma, GFP_KERNEL); in get_scq()
870 if (!scq->org) { in get_scq()
871 kfree(scq); in get_scq()
874 scq->skb = kmalloc(sizeof(struct sk_buff *) * in get_scq()
876 if (!scq->skb) { in get_scq()
877 kfree(scq->org); in get_scq()
878 kfree(scq); in get_scq()
881 scq->num_entries = size / NS_SCQE_SIZE; in get_scq()
882 scq->base = PTR_ALIGN(scq->org, size); in get_scq()
883 scq->next = scq->base; in get_scq()
884 scq->last = scq->base + (scq->num_entries - 1); in get_scq()
885 scq->tail = scq->last; in get_scq()
886 scq->scd = scd; in get_scq()
887 scq->num_entries = size / NS_SCQE_SIZE; in get_scq()
888 scq->tbd_count = 0; in get_scq()
889 init_waitqueue_head(&scq->scqfull_waitq); in get_scq()
890 scq->full = 0; in get_scq()
891 spin_lock_init(&scq->lock); in get_scq()
893 for (i = 0; i < scq->num_entries; i++) in get_scq()
894 scq->skb[i] = NULL; in get_scq()
896 return scq; in get_scq()
900 static void free_scq(ns_dev *card, scq_info *scq, struct atm_vcc *vcc) in free_scq() argument
904 if (scq->num_entries == VBR_SCQ_NUM_ENTRIES) in free_scq()
905 for (i = 0; i < scq->num_entries; i++) { in free_scq()
906 if (scq->skb[i] != NULL) { in free_scq()
907 vcc = ATM_SKB(scq->skb[i])->vcc; in free_scq()
909 vcc->pop(vcc, scq->skb[i]); in free_scq()
911 dev_kfree_skb_any(scq->skb[i]); in free_scq()
918 for (i = 0; i < scq->num_entries; i++) in free_scq()
919 dev_kfree_skb_any(scq->skb[i]); in free_scq()
921 for (i = 0; i < scq->num_entries; i++) { in free_scq()
922 if (scq->skb[i] != NULL) { in free_scq()
924 vcc->pop(vcc, scq->skb[i]); in free_scq()
926 dev_kfree_skb_any(scq->skb[i]); in free_scq()
930 kfree(scq->skb); in free_scq()
932 2 * (scq->num_entries == VBR_SCQ_NUM_ENTRIES ? in free_scq()
934 scq->org, scq->dma); in free_scq()
935 kfree(scq); in free_scq()
1271 scq_info *scq; in ns_open() local
1353 scq = get_scq(card, CBR_SCQSIZE, vc->cbr_scd); in ns_open()
1354 if (scq == NULL) { in ns_open()
1363 vc->scq = scq; in ns_open()
1364 u32d[0] = scq_virt_to_bus(scq, scq->base); in ns_open()
1373 vc->scq = card->scq0; in ns_open()
1465 scq_info *scq; in ns_close() local
1467 scq = vc->scq; in ns_close()
1470 spin_lock_irqsave(&scq->lock, flags); in ns_close()
1471 scqep = scq->next; in ns_close()
1472 if (scqep == scq->base) in ns_close()
1473 scqep = scq->last; in ns_close()
1476 if (scqep == scq->tail) { in ns_close()
1477 spin_unlock_irqrestore(&scq->lock, flags); in ns_close()
1482 if (!ns_scqe_is_tsr(scqep) && scq->tail != scq->next) { in ns_close()
1490 scqi = scq->next - scq->base; in ns_close()
1494 *scq->next = tsr; in ns_close()
1496 scq->skb[index] = NULL; in ns_close()
1497 if (scq->next == scq->last) in ns_close()
1498 scq->next = scq->base; in ns_close()
1500 scq->next++; in ns_close()
1501 data = scq_virt_to_bus(scq, scq->next); in ns_close()
1502 ns_write_sram(card, scq->scd, &data, 1); in ns_close()
1504 spin_unlock_irqrestore(&scq->lock, flags); in ns_close()
1520 free_scq(card, vc->scq, vcc); in ns_close()
1526 scq_info *scq = card->scq0; in ns_close() local
1528 spin_lock_irqsave(&scq->lock, flags); in ns_close()
1530 for (i = 0; i < scq->num_entries; i++) { in ns_close()
1531 if (scq->skb[i] && ATM_SKB(scq->skb[i])->vcc == vcc) { in ns_close()
1532 ATM_SKB(scq->skb[i])->vcc = NULL; in ns_close()
1533 atm_return(vcc, scq->skb[i]->truesize); in ns_close()
1539 spin_unlock_irqrestore(&scq->lock, flags); in ns_close()
1625 scq_info *scq; in ns_send() local
1698 scq = ((vc_map *) vcc->dev_data)->scq; in ns_send()
1702 scq = card->scq0; in ns_send()
1705 if (push_scqe(card, vc, scq, &scqe, skb) != 0) { in ns_send()
1715 static int push_scqe(ns_dev * card, vc_map * vc, scq_info * scq, ns_scqe * tbd, in push_scqe() argument
1725 spin_lock_irqsave(&scq->lock, flags); in push_scqe()
1726 while (scq->tail == scq->next) { in push_scqe()
1728 spin_unlock_irqrestore(&scq->lock, flags); in push_scqe()
1733 scq->full = 1; in push_scqe()
1734 wait_event_interruptible_lock_irq_timeout(scq->scqfull_waitq, in push_scqe()
1735 scq->tail != scq->next, in push_scqe()
1736 scq->lock, in push_scqe()
1739 if (scq->full) { in push_scqe()
1740 spin_unlock_irqrestore(&scq->lock, flags); in push_scqe()
1746 *scq->next = *tbd; in push_scqe()
1747 index = (int)(scq->next - scq->base); in push_scqe()
1748 scq->skb[index] = skb; in push_scqe()
1754 scq->next); in push_scqe()
1755 if (scq->next == scq->last) in push_scqe()
1756 scq->next = scq->base; in push_scqe()
1758 scq->next++; in push_scqe()
1761 if (scq->num_entries == VBR_SCQ_NUM_ENTRIES) { in push_scqe()
1762 scq->tbd_count++; in push_scqe()
1768 || scq->tbd_count >= MAX_TBD_PER_SCQ) { in push_scqe()
1771 while (scq->tail == scq->next) { in push_scqe()
1773 data = scq_virt_to_bus(scq, scq->next); in push_scqe()
1774 ns_write_sram(card, scq->scd, &data, 1); in push_scqe()
1775 spin_unlock_irqrestore(&scq->lock, flags); in push_scqe()
1781 scq->full = 1; in push_scqe()
1784 wait_event_interruptible_lock_irq_timeout(scq->scqfull_waitq, in push_scqe()
1785 scq->tail != scq->next, in push_scqe()
1786 scq->lock, in push_scqe()
1790 if (!scq->full) { in push_scqe()
1796 scqi = scq->next - scq->base; in push_scqe()
1801 *scq->next = tsr; in push_scqe()
1803 scq->skb[index] = NULL; in push_scqe()
1808 le32_to_cpu(tsr.word_4), scq->next); in push_scqe()
1809 if (scq->next == scq->last) in push_scqe()
1810 scq->next = scq->base; in push_scqe()
1812 scq->next++; in push_scqe()
1814 scq->tbd_count = 0; in push_scqe()
1819 data = scq_virt_to_bus(scq, scq->next); in push_scqe()
1820 ns_write_sram(card, scq->scd, &data, 1); in push_scqe()
1822 spin_unlock_irqrestore(&scq->lock, flags); in push_scqe()
1830 scq_info *scq; in process_tsq() local
1863 scq = card->scq0; in process_tsq()
1872 scq = card->scd2vc[scdi]->scq; in process_tsq()
1874 drain_scq(card, scq, ns_tsi_getscqpos(card->tsq.next)); in process_tsq()
1875 scq->full = 0; in process_tsq()
1876 wake_up_interruptible(&(scq->scqfull_waitq)); in process_tsq()
1902 static void drain_scq(ns_dev * card, scq_info * scq, int pos) in drain_scq() argument
1910 card->index, scq, pos); in drain_scq()
1911 if (pos >= scq->num_entries) { in drain_scq()
1916 spin_lock_irqsave(&scq->lock, flags); in drain_scq()
1917 i = (int)(scq->tail - scq->base); in drain_scq()
1918 if (++i == scq->num_entries) in drain_scq()
1921 skb = scq->skb[i]; in drain_scq()
1935 scq->skb[i] = NULL; in drain_scq()
1937 if (++i == scq->num_entries) in drain_scq()
1940 scq->tail = scq->base + pos; in drain_scq()
1941 spin_unlock_irqrestore(&scq->lock, flags); in drain_scq()