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-rw-r--r--drivers/net/arcnet/arcdevice.h4
-rw-r--r--drivers/net/arcnet/arcnet.c74
-rw-r--r--drivers/net/arcnet/com20020-pci.c58
3 files changed, 126 insertions, 10 deletions
diff --git a/drivers/net/arcnet/arcdevice.h b/drivers/net/arcnet/arcdevice.h
index 20bfb9ba83ea..cbb4f8566bbe 100644
--- a/drivers/net/arcnet/arcdevice.h
+++ b/drivers/net/arcnet/arcdevice.h
@@ -269,6 +269,10 @@ struct arcnet_local {
struct timer_list timer;
+ struct net_device *dev;
+ int reply_status;
+ struct tasklet_struct reply_tasklet;
+
/*
* Buffer management: an ARCnet card has 4 x 512-byte buffers, each of
* which can be used for either sending or receiving. The new dynamic
diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 62ee439d5882..d87f4da29f11 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -51,6 +51,7 @@
#include <net/arp.h>
#include <linux/init.h>
#include <linux/jiffies.h>
+#include <linux/errqueue.h>
#include <linux/leds.h>
@@ -391,6 +392,52 @@ static void arcnet_timer(unsigned long data)
}
}
+static void arcnet_reply_tasklet(unsigned long data)
+{
+ struct arcnet_local *lp = (struct arcnet_local *)data;
+
+ struct sk_buff *ackskb, *skb;
+ struct sock_exterr_skb *serr;
+ struct sock *sk;
+ int ret;
+
+ local_irq_disable();
+ skb = lp->outgoing.skb;
+ if (!skb || !skb->sk) {
+ local_irq_enable();
+ return;
+ }
+
+ sock_hold(skb->sk);
+ sk = skb->sk;
+ ackskb = skb_clone_sk(skb);
+ sock_put(skb->sk);
+
+ if (!ackskb) {
+ local_irq_enable();
+ return;
+ }
+
+ serr = SKB_EXT_ERR(ackskb);
+ memset(serr, 0, sizeof(*serr));
+ serr->ee.ee_errno = ENOMSG;
+ serr->ee.ee_origin = SO_EE_ORIGIN_TXSTATUS;
+ serr->ee.ee_data = skb_shinfo(skb)->tskey;
+ serr->ee.ee_info = lp->reply_status;
+
+ /* finally erasing outgoing skb */
+ dev_kfree_skb(lp->outgoing.skb);
+ lp->outgoing.skb = NULL;
+
+ ackskb->dev = lp->dev;
+
+ ret = sock_queue_err_skb(sk, ackskb);
+ if (ret)
+ kfree_skb(ackskb);
+
+ local_irq_enable();
+};
+
struct net_device *alloc_arcdev(const char *name)
{
struct net_device *dev;
@@ -401,6 +448,7 @@ struct net_device *alloc_arcdev(const char *name)
if (dev) {
struct arcnet_local *lp = netdev_priv(dev);
+ lp->dev = dev;
spin_lock_init(&lp->lock);
init_timer(&lp->timer);
lp->timer.data = (unsigned long) dev;
@@ -436,6 +484,9 @@ int arcnet_open(struct net_device *dev)
arc_cont(D_PROTO, "\n");
}
+ tasklet_init(&lp->reply_tasklet, arcnet_reply_tasklet,
+ (unsigned long)lp);
+
arc_printk(D_INIT, dev, "arcnet_open: resetting card.\n");
/* try to put the card in a defined state - if it fails the first
@@ -527,6 +578,8 @@ int arcnet_close(struct net_device *dev)
netif_stop_queue(dev);
netif_carrier_off(dev);
+ tasklet_kill(&lp->reply_tasklet);
+
/* flush TX and disable RX */
lp->hw.intmask(dev, 0);
lp->hw.command(dev, NOTXcmd); /* stop transmit */
@@ -635,13 +688,13 @@ netdev_tx_t arcnet_send_packet(struct sk_buff *skb,
txbuf = -1;
if (txbuf != -1) {
+ lp->outgoing.skb = skb;
if (proto->prepare_tx(dev, pkt, skb->len, txbuf) &&
!proto->ack_tx) {
/* done right away and we don't want to acknowledge
* the package later - forget about it now
*/
dev->stats.tx_bytes += skb->len;
- dev_kfree_skb(skb);
} else {
/* do it the 'split' way */
lp->outgoing.proto = proto;
@@ -842,8 +895,16 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
/* a transmit finished, and we're interested in it. */
if ((status & lp->intmask & TXFREEflag) || lp->timed_out) {
+ int ackstatus;
lp->intmask &= ~(TXFREEflag | EXCNAKflag);
+ if (status & TXACKflag)
+ ackstatus = 2;
+ else if (lp->excnak_pending)
+ ackstatus = 1;
+ else
+ ackstatus = 0;
+
arc_printk(D_DURING, dev, "TX IRQ (stat=%Xh)\n",
status);
@@ -866,18 +927,11 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
if (lp->outgoing.proto &&
lp->outgoing.proto->ack_tx) {
- int ackstatus;
-
- if (status & TXACKflag)
- ackstatus = 2;
- else if (lp->excnak_pending)
- ackstatus = 1;
- else
- ackstatus = 0;
-
lp->outgoing.proto
->ack_tx(dev, ackstatus);
}
+ lp->reply_status = ackstatus;
+ tasklet_hi_schedule(&lp->reply_tasklet);
}
if (lp->cur_tx != -1)
release_arcbuf(dev, lp->cur_tx);
diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c
index 239de38fbd6a..24deb88a37f0 100644
--- a/drivers/net/arcnet/com20020-pci.c
+++ b/drivers/net/arcnet/com20020-pci.c
@@ -93,6 +93,27 @@ static void led_recon_set(struct led_classdev *led_cdev,
outb(!!value, priv->misc + ci->leds[card->index].red);
}
+static ssize_t backplane_mode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct net_device *net_dev = to_net_dev(dev);
+ struct arcnet_local *lp = netdev_priv(net_dev);
+
+ return sprintf(buf, "%s\n", lp->backplane ? "true" : "false");
+}
+static DEVICE_ATTR_RO(backplane_mode);
+
+static struct attribute *com20020_state_attrs[] = {
+ &dev_attr_backplane_mode.attr,
+ NULL,
+};
+
+static struct attribute_group com20020_state_group = {
+ .name = NULL,
+ .attrs = com20020_state_attrs,
+};
+
static void com20020pci_remove(struct pci_dev *pdev);
static int com20020pci_probe(struct pci_dev *pdev,
@@ -168,6 +189,7 @@ static int com20020pci_probe(struct pci_dev *pdev,
dev->base_addr = ioaddr;
dev->dev_addr[0] = node;
+ dev->sysfs_groups[0] = &com20020_state_group;
dev->irq = pdev->irq;
lp->card_name = "PCI COM20020";
lp->card_flags = ci->flags;
@@ -177,6 +199,11 @@ static int com20020pci_probe(struct pci_dev *pdev,
lp->timeout = timeout;
lp->hw.owner = THIS_MODULE;
+ lp->backplane = (inb(priv->misc) >> (2 + i)) & 0x1;
+
+ if (!strncmp(ci->name, "EAE PLX-PCI FB2", 15))
+ lp->backplane = 1;
+
/* Get the dev_id from the PLX rotary coder */
if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15))
dev->dev_id = 0xc;
@@ -361,6 +388,31 @@ static struct com20020_pci_card_info card_info_eae_ma1 = {
.flags = ARC_CAN_10MBIT,
};
+static struct com20020_pci_card_info card_info_eae_fb2 = {
+ .name = "EAE PLX-PCI FB2",
+ .devcount = 1,
+ .chan_map_tbl = {
+ {
+ .bar = 2,
+ .offset = 0x00,
+ .size = 0x08,
+ },
+ },
+ .misc_map = {
+ .bar = 2,
+ .offset = 0x10,
+ .size = 0x04,
+ },
+ .leds = {
+ {
+ .green = 0x0,
+ .red = 0x1,
+ },
+ },
+ .rotary = 0x0,
+ .flags = ARC_CAN_10MBIT,
+};
+
static const struct pci_device_id com20020pci_id_table[] = {
{
0x1571, 0xa001,
@@ -507,6 +559,12 @@ static const struct pci_device_id com20020pci_id_table[] = {
(kernel_ulong_t)&card_info_eae_ma1
},
{
+ 0x10B5, 0x9050,
+ 0x10B5, 0x3294,
+ 0, 0,
+ (kernel_ulong_t)&card_info_eae_fb2
+ },
+ {
0x14BA, 0x6000,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 08:24:44 +0000