netiucv.c (459a98ed881802dee55897441bc7f77af614368e) netiucv.c (27a884dc3cb63b93c2b3b643f5b31eed5f8a4d26)
1/*
2 * IUCV network driver
3 *
4 * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
5 * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
6 *
7 * Sysfs integration and all bugs therein by Cornelia Huck
8 * (cornelia.huck@de.ibm.com)

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684 iucv_message_reject(conn->path, msg);
685 privptr->stats.rx_dropped++;
686 PRINT_WARN("msglen %d > max_buffsize %d\n",
687 msg->length, conn->max_buffsize);
688 IUCV_DBF_TEXT_(data, 2, "msglen %d > max_buffsize %d\n",
689 msg->length, conn->max_buffsize);
690 return;
691 }
1/*
2 * IUCV network driver
3 *
4 * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
5 * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
6 *
7 * Sysfs integration and all bugs therein by Cornelia Huck
8 * (cornelia.huck@de.ibm.com)

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684 iucv_message_reject(conn->path, msg);
685 privptr->stats.rx_dropped++;
686 PRINT_WARN("msglen %d > max_buffsize %d\n",
687 msg->length, conn->max_buffsize);
688 IUCV_DBF_TEXT_(data, 2, "msglen %d > max_buffsize %d\n",
689 msg->length, conn->max_buffsize);
690 return;
691 }
692 conn->rx_buff->data = conn->rx_buff->tail = conn->rx_buff->head;
692 conn->rx_buff->data = conn->rx_buff->head;
693 skb_reset_tail_pointer(conn->rx_buff);
693 conn->rx_buff->len = 0;
694 rc = iucv_message_receive(conn->path, msg, 0, conn->rx_buff->data,
695 msg->length, NULL);
696 if (rc || msg->length < 5) {
697 privptr->stats.rx_errors++;
698 PRINT_WARN("iucv_receive returned %08x\n", rc);
699 IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_receive\n", rc);
700 return;

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730 if (privptr) {
731 privptr->stats.tx_packets++;
732 privptr->stats.tx_bytes +=
733 (skb->len - NETIUCV_HDRLEN
734 - NETIUCV_HDRLEN);
735 }
736 }
737 }
694 conn->rx_buff->len = 0;
695 rc = iucv_message_receive(conn->path, msg, 0, conn->rx_buff->data,
696 msg->length, NULL);
697 if (rc || msg->length < 5) {
698 privptr->stats.rx_errors++;
699 PRINT_WARN("iucv_receive returned %08x\n", rc);
700 IUCV_DBF_TEXT_(data, 2, "rc %d from iucv_receive\n", rc);
701 return;

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731 if (privptr) {
732 privptr->stats.tx_packets++;
733 privptr->stats.tx_bytes +=
734 (skb->len - NETIUCV_HDRLEN
735 - NETIUCV_HDRLEN);
736 }
737 }
738 }
738 conn->tx_buff->data = conn->tx_buff->tail = conn->tx_buff->head;
739 conn->tx_buff->data = conn->tx_buff->head;
740 skb_reset_tail_pointer(conn->tx_buff);
739 conn->tx_buff->len = 0;
740 spin_lock_irqsave(&conn->collect_lock, saveflags);
741 while ((skb = skb_dequeue(&conn->collect_queue))) {
742 header.next = conn->tx_buff->len + skb->len + NETIUCV_HDRLEN;
743 memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header,
744 NETIUCV_HDRLEN);
745 memcpy(skb_put(conn->tx_buff, skb->len), skb->data, skb->len);
746 txbytes += skb->len;

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1159 }
1160 spin_unlock_irqrestore(&conn->collect_lock, saveflags);
1161 } else {
1162 struct sk_buff *nskb = skb;
1163 /**
1164 * Copy the skb to a new allocated skb in lowmem only if the
1165 * data is located above 2G in memory or tailroom is < 2.
1166 */
741 conn->tx_buff->len = 0;
742 spin_lock_irqsave(&conn->collect_lock, saveflags);
743 while ((skb = skb_dequeue(&conn->collect_queue))) {
744 header.next = conn->tx_buff->len + skb->len + NETIUCV_HDRLEN;
745 memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header,
746 NETIUCV_HDRLEN);
747 memcpy(skb_put(conn->tx_buff, skb->len), skb->data, skb->len);
748 txbytes += skb->len;

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1161 }
1162 spin_unlock_irqrestore(&conn->collect_lock, saveflags);
1163 } else {
1164 struct sk_buff *nskb = skb;
1165 /**
1166 * Copy the skb to a new allocated skb in lowmem only if the
1167 * data is located above 2G in memory or tailroom is < 2.
1168 */
1167 unsigned long hi =
1168 ((unsigned long)(skb->tail + NETIUCV_HDRLEN)) >> 31;
1169 unsigned long hi = ((unsigned long)(skb_tail_pointer(skb) +
1170 NETIUCV_HDRLEN)) >> 31;
1169 int copied = 0;
1170 if (hi || (skb_tailroom(skb) < 2)) {
1171 nskb = alloc_skb(skb->len + NETIUCV_HDRLEN +
1172 NETIUCV_HDRLEN, GFP_ATOMIC | GFP_DMA);
1173 if (!nskb) {
1174 PRINT_WARN("%s: Could not allocate tx_skb\n",
1175 conn->netdev->name);
1176 IUCV_DBF_TEXT(data, 2, "alloc_skb failed\n");

--- 995 unchanged lines hidden --- 		1171 int copied = 0;
1172 if (hi || (skb_tailroom(skb) < 2)) {
1173 nskb = alloc_skb(skb->len + NETIUCV_HDRLEN +
1174 NETIUCV_HDRLEN, GFP_ATOMIC | GFP_DMA);
1175 if (!nskb) {
1176 PRINT_WARN("%s: Could not allocate tx_skb\n",
1177 conn->netdev->name);
1178 IUCV_DBF_TEXT(data, 2, "alloc_skb failed\n");

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