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Keep polling at 50hz as long as link state is changing.

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This commit is contained in:
Juli Mallett 2010-10-13 21:45:56 +00:00
parent 3c1812acc6
commit 2bcbafd6be
1 changed files with 15 additions and 3 deletions
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18
sys/mips/cavium/octe/ethernet.c
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@ -173,6 +173,7 @@ static void cvm_oct_update_link(void *context, int pending)
static void cvm_do_timer(void *arg)
{
static int port;
static int updated;
if (port < CVMX_PIP_NUM_INPUT_PORTS) {
if (cvm_oct_device[port]) {
int queues_per_port;
@ -186,6 +187,7 @@ static void cvm_do_timer(void *arg)
MDIO_UNLOCK();
if (priv->need_link_update) {
updated++;
taskqueue_enqueue(cvm_oct_link_taskq, &priv->link_task);
}
}
@ -220,9 +222,19 @@ static void cvm_do_timer(void *arg)
callout_reset(&cvm_oct_poll_timer, hz / 50, cvm_do_timer, NULL);
} else {
port = 0;
/* All ports have been polled. Start the next iteration through
the ports in one second */
callout_reset(&cvm_oct_poll_timer, hz, cvm_do_timer, NULL);
/* If any updates were made in this run, continue iterating at
* 1/50th of a second, so that if a link has merely gone down
* temporarily (e.g. because of interface reinitialization) it
* will not be forced to stay down for an entire second.
*/
if (updated > 0) {
updated = 0;
callout_reset(&cvm_oct_poll_timer, hz / 50, cvm_do_timer, NULL);
} else {
/* All ports have been polled. Start the next iteration through
the ports in one second */
callout_reset(&cvm_oct_poll_timer, hz, cvm_do_timer, NULL);
}
}
}