ok
Am Donnerstag, den 23.02.2012, 09:22 +0100 schrieb Florian Pose:
> Am 10.02.2012 16:21, schrieb sergej.stepa...@ids.de:
> > Hallo Florian, thanks your tips we could fix a problem on our
> > slave.
>
> Glad I could help.
>
> > Could you please take a look at the diff?This patch fixed the oops
> > problem 1. I described you.It is from 1.5-stable branch and should
> > be the same as 1.5.1
>
> The patch was scrambled, could you please attach it as a file?
>
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Index: master/ethernet.h
===================================================================
--- master/ethernet.h (Revision 70081)
+++ master/ethernet.h (Revision 70114)
@@ -92,7 +97,7 @@
unsigned int tx_queue_size; /**< Transmit queue size. */
unsigned int tx_queue_active; /**< kernel netif queue started */
unsigned int tx_queued_frames; /**< number of frames in the queue */
- struct semaphore tx_queue_sem; /**< Semaphore for the send queue. */
+ spinlock_t tx_queue_sem; /**< Spinlock for the send queue. */
ec_eoe_frame_t *tx_frame; /**< current TX frame */
uint8_t tx_frame_number; /**< number of the transmitted frame */
uint8_t tx_fragment_number; /**< number of the fragment */
Index: master/ethernet.c
===================================================================
--- master/ethernet.c (Revision 70081)
+++ master/ethernet.c (Revision 70114)
@@ -122,7 +122,7 @@
eoe->tx_queue_size = EC_EOE_TX_QUEUE_SIZE;
eoe->tx_queued_frames = 0;
- sema_init(&eoe->tx_queue_sem, 1);
+ spin_lock_init(&eoe->tx_queue_sem);
eoe->tx_frame_number = 0xFF;
memset(&eoe->stats, 0, sizeof(struct net_device_stats));
@@ -231,7 +231,7 @@
{
ec_eoe_frame_t *frame, *next;
- down(&eoe->tx_queue_sem);
+ spin_lock_bh(&eoe->tx_queue_sem);
list_for_each_entry_safe(frame, next, &eoe->tx_queue, queue) {
list_del(&frame->queue);
@@ -240,7 +240,7 @@
}
eoe->tx_queued_frames = 0;
- up(&eoe->tx_queue_sem);
+ spin_unlock_bh(&eoe->tx_queue_sem);
}
/*****************************************************************************/
@@ -620,10 +625,10 @@
return;
}
- down(&eoe->tx_queue_sem);
+ spin_lock_bh(&eoe->tx_queue_sem);
if (!eoe->tx_queued_frames || list_empty(&eoe->tx_queue)) {
- up(&eoe->tx_queue_sem);
+ spin_unlock_bh(&eoe->tx_queue_sem);
eoe->tx_idle = 1;
// no data available.
// start a new receive immediately.
@@ -644,7 +649,7 @@
}
eoe->tx_queued_frames--;
- up(&eoe->tx_queue_sem);
+ spin_unlock_bh(&eoe->tx_queue_sem);
eoe->tx_idle = 0;
@@ -812,14 +817,14 @@
frame->skb = skb;
- down(&eoe->tx_queue_sem);
+ spin_lock(&eoe->tx_queue_sem);
list_add_tail(&frame->queue, &eoe->tx_queue);
eoe->tx_queued_frames++;
if (eoe->tx_queued_frames == eoe->tx_queue_size) {
netif_stop_queue(dev);
eoe->tx_queue_active = 0;
}
- up(&eoe->tx_queue_sem);
+ spin_unlock(&eoe->tx_queue_sem);
#if EOE_DEBUG_LEVEL >= 2
EC_SLAVE_DBG(eoe->slave, 0, "EoE %s TX queued frame"
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