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ehea: converting msleeps to waitqueue on check_sqs() function

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Removing the msleep() call in check_sqs() function, and replacing by a wait queue.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Breno Leitao 2010-10-05 13:16:23 +00:00 committed by David S. Miller
parent 5b27d42755
commit a8bb69f781
2 changed files with 12 additions and 7 deletions
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1
drivers/net/ehea/ehea.h
View File

@ -492,6 +492,7 @@ struct ehea_port {
u8 autoneg;
u8 num_def_qps;
wait_queue_head_t swqe_avail_wq;
wait_queue_head_t restart_wq;
};
struct port_res_cfg {

18
drivers/net/ehea/ehea_main.c
View File

@ -786,6 +786,7 @@ static void reset_sq_restart_flag(struct ehea_port *port)
struct ehea_port_res *pr = &port->port_res[i];
pr->sq_restart_flag = 0;
}
wake_up(&port->restart_wq);
}
static void check_sqs(struct ehea_port *port)
@ -796,6 +797,7 @@ static void check_sqs(struct ehea_port *port)
for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
struct ehea_port_res *pr = &port->port_res[i];
int ret;
k = 0;
swqe = ehea_get_swqe(pr->qp, &swqe_index);
memset(swqe, 0, SWQE_HEADER_SIZE);
@ -809,13 +811,14 @@ static void check_sqs(struct ehea_port *port)
ehea_post_swqe(pr->qp, swqe);
while (pr->sq_restart_flag == 0) {
msleep(5);
if (++k == 100) {
ehea_error("HW/SW queues out of sync");
ehea_schedule_port_reset(pr->port);
return;
}
ret = wait_event_timeout(port->restart_wq,
pr->sq_restart_flag == 0,
msecs_to_jiffies(100));
if (!ret) {
ehea_error("HW/SW queues out of sync");
ehea_schedule_port_reset(pr->port);
return;
}
}
}
@ -2654,6 +2657,7 @@ static int ehea_open(struct net_device *dev)
}
init_waitqueue_head(&port->swqe_avail_wq);
init_waitqueue_head(&port->restart_wq);
mutex_unlock(&port->port_lock);