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path: root/drivers/net/arcnet/capmode.c
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Diffstat (limited to 'drivers/net/arcnet/capmode.c')
-rw-r--r--drivers/net/arcnet/capmode.c188
1 files changed, 83 insertions, 105 deletions
diff --git a/drivers/net/arcnet/capmode.c b/drivers/net/arcnet/capmode.c
index 02cb8f1c114..42fce91b71f 100644
--- a/drivers/net/arcnet/capmode.c
+++ b/drivers/net/arcnet/capmode.c
@@ -27,6 +27,7 @@
*/
#include <linux/module.h>
+#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/if_arp.h>
#include <net/arp.h>
@@ -36,74 +37,11 @@
#define VERSION "arcnet: cap mode (`c') encapsulation support loaded.\n"
-
-static void rx(struct net_device *dev, int bufnum,
- struct archdr *pkthdr, int length);
-static int build_header(struct sk_buff *skb,
- struct net_device *dev,
- unsigned short type,
- uint8_t daddr);
-static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
- int bufnum);
-static int ack_tx(struct net_device *dev, int acked);
-
-
-static struct ArcProto capmode_proto =
-{
- 'r',
- XMTU,
- 0,
- rx,
- build_header,
- prepare_tx,
- NULL,
- ack_tx
-};
-
-
-void arcnet_cap_init(void)
-{
- int count;
-
- for (count = 1; count <= 8; count++)
- if (arc_proto_map[count] == arc_proto_default)
- arc_proto_map[count] = &capmode_proto;
-
- /* for cap mode, we only set the bcast proto if there's no better one */
- if (arc_bcast_proto == arc_proto_default)
- arc_bcast_proto = &capmode_proto;
-
- arc_proto_default = &capmode_proto;
- arc_raw_proto = &capmode_proto;
-}
-
-
-#ifdef MODULE
-
-static int __init capmode_module_init(void)
-{
- printk(VERSION);
- arcnet_cap_init();
- return 0;
-}
-
-static void __exit capmode_module_exit(void)
-{
- arcnet_unregister_proto(&capmode_proto);
-}
-module_init(capmode_module_init);
-module_exit(capmode_module_exit);
-
-MODULE_LICENSE("GPL");
-#endif /* MODULE */
-
-
-
/* packet receiver */
static void rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length)
{
- struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
+ struct arcnet_local *lp = netdev_priv(dev);
struct sk_buff *skb;
struct archdr *pkt = pkthdr;
char *pktbuf, *pkthdrbuf;
@@ -119,7 +57,7 @@ static void rx(struct net_device *dev, int bufnum,
skb = alloc_skb(length + ARC_HDR_SIZE + sizeof(int), GFP_ATOMIC);
if (skb == NULL) {
BUGMSG(D_NORMAL, "Memory squeeze, dropping packet.\n");
- lp->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
return;
}
skb_put(skb, length + ARC_HDR_SIZE + sizeof(int));
@@ -148,10 +86,8 @@ static void rx(struct net_device *dev, int bufnum,
BUGLVL(D_SKB) arcnet_dump_skb(dev, skb, "rx");
- skb->protocol = __constant_htons(ETH_P_ARCNET);
-;
+ skb->protocol = cpu_to_be16(ETH_P_ARCNET);
netif_rx(skb);
- dev->last_rx = jiffies;
}
@@ -198,7 +134,7 @@ static int build_header(struct sk_buff *skb,
static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
int bufnum)
{
- struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
+ struct arcnet_local *lp = netdev_priv(dev);
struct arc_hardware *hard = &pkt->hard;
int ofs;
@@ -232,65 +168,107 @@ static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
BUGMSG(D_DURING, "prepare_tx: length=%d ofs=%d\n",
length,ofs);
- // Copy the arcnet-header + the protocol byte down:
+ /* Copy the arcnet-header + the protocol byte down: */
lp->hw.copy_to_card(dev, bufnum, 0, hard, ARC_HDR_SIZE);
lp->hw.copy_to_card(dev, bufnum, ofs, &pkt->soft.cap.proto,
sizeof(pkt->soft.cap.proto));
- // Skip the extra integer we have written into it as a cookie
- // but write the rest of the message:
+ /* Skip the extra integer we have written into it as a cookie
+ but write the rest of the message: */
lp->hw.copy_to_card(dev, bufnum, ofs+1,
((unsigned char*)&pkt->soft.cap.mes),length-1);
lp->lastload_dest = hard->dest;
- return 1; /* done */
+ return 1; /* done */
}
-
static int ack_tx(struct net_device *dev, int acked)
{
- struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
- struct sk_buff *ackskb;
- struct archdr *ackpkt;
- int length=sizeof(struct arc_cap);
+ struct arcnet_local *lp = netdev_priv(dev);
+ struct sk_buff *ackskb;
+ struct archdr *ackpkt;
+ int length=sizeof(struct arc_cap);
- BUGMSG(D_DURING, "capmode: ack_tx: protocol: %x: result: %d\n",
- lp->outgoing.skb->protocol, acked);
+ BUGMSG(D_DURING, "capmode: ack_tx: protocol: %x: result: %d\n",
+ lp->outgoing.skb->protocol, acked);
- BUGLVL(D_SKB) arcnet_dump_skb(dev, lp->outgoing.skb, "ack_tx");
+ BUGLVL(D_SKB) arcnet_dump_skb(dev, lp->outgoing.skb, "ack_tx");
- /* Now alloc a skb to send back up through the layers: */
- ackskb = alloc_skb(length + ARC_HDR_SIZE , GFP_ATOMIC);
- if (ackskb == NULL) {
- BUGMSG(D_NORMAL, "Memory squeeze, can't acknowledge.\n");
- goto free_outskb;
- }
+ /* Now alloc a skb to send back up through the layers: */
+ ackskb = alloc_skb(length + ARC_HDR_SIZE , GFP_ATOMIC);
+ if (ackskb == NULL) {
+ BUGMSG(D_NORMAL, "Memory squeeze, can't acknowledge.\n");
+ goto free_outskb;
+ }
- skb_put(ackskb, length + ARC_HDR_SIZE );
- ackskb->dev = dev;
+ skb_put(ackskb, length + ARC_HDR_SIZE );
+ ackskb->dev = dev;
- skb_reset_mac_header(ackskb);
- ackpkt = (struct archdr *)skb_mac_header(ackskb);
- /* skb_pull(ackskb, ARC_HDR_SIZE); */
+ skb_reset_mac_header(ackskb);
+ ackpkt = (struct archdr *)skb_mac_header(ackskb);
+ /* skb_pull(ackskb, ARC_HDR_SIZE); */
+ skb_copy_from_linear_data(lp->outgoing.skb, ackpkt,
+ ARC_HDR_SIZE + sizeof(struct arc_cap));
+ ackpkt->soft.cap.proto = 0; /* using protocol 0 for acknowledge */
+ ackpkt->soft.cap.mes.ack=acked;
- skb_copy_from_linear_data(lp->outgoing.skb, ackpkt,
- ARC_HDR_SIZE + sizeof(struct arc_cap));
- ackpkt->soft.cap.proto=0; /* using protocol 0 for acknowledge */
- ackpkt->soft.cap.mes.ack=acked;
+ BUGMSG(D_PROTO, "Ackknowledge for cap packet %x.\n",
+ *((int*)&ackpkt->soft.cap.cookie[0]));
- BUGMSG(D_PROTO, "Ackknowledge for cap packet %x.\n",
- *((int*)&ackpkt->soft.cap.cookie[0]));
+ ackskb->protocol = cpu_to_be16(ETH_P_ARCNET);
- ackskb->protocol = __constant_htons(ETH_P_ARCNET);
+ BUGLVL(D_SKB) arcnet_dump_skb(dev, ackskb, "ack_tx_recv");
+ netif_rx(ackskb);
- BUGLVL(D_SKB) arcnet_dump_skb(dev, ackskb, "ack_tx_recv");
- netif_rx(ackskb);
+free_outskb:
+ dev_kfree_skb_irq(lp->outgoing.skb);
+ lp->outgoing.proto = NULL; /* We are always finished when in this protocol */
- free_outskb:
- dev_kfree_skb_irq(lp->outgoing.skb);
- lp->outgoing.proto = NULL; /* We are always finished when in this protocol */
+ return 0;
+}
- return 0;
+static struct ArcProto capmode_proto =
+{
+ 'r',
+ XMTU,
+ 0,
+ rx,
+ build_header,
+ prepare_tx,
+ NULL,
+ ack_tx
+};
+
+static void arcnet_cap_init(void)
+{
+ int count;
+
+ for (count = 1; count <= 8; count++)
+ if (arc_proto_map[count] == arc_proto_default)
+ arc_proto_map[count] = &capmode_proto;
+
+ /* for cap mode, we only set the bcast proto if there's no better one */
+ if (arc_bcast_proto == arc_proto_default)
+ arc_bcast_proto = &capmode_proto;
+
+ arc_proto_default = &capmode_proto;
+ arc_raw_proto = &capmode_proto;
+}
+
+static int __init capmode_module_init(void)
+{
+ printk(VERSION);
+ arcnet_cap_init();
+ return 0;
+}
+
+static void __exit capmode_module_exit(void)
+{
+ arcnet_unregister_proto(&capmode_proto);
}
+module_init(capmode_module_init);
+module_exit(capmode_module_exit);
+
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 01:57:55 +0000