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authorBreno Leitao <leitao@linux.vnet.ibm.com>2010-10-05 13:16:23 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-05 20:10:55 -0700
commita8bb69f78194dc483f6c4a4bf8860c1ede35fa25 (patch)
treefed6f88567669fa2c59e5016f00162e54b7bd67d /drivers/net/ehea
parent5b27d42755fa6536a89f32b107fb2a53267696c2 (diff)
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ehea: converting msleeps to waitqueue on check_sqs() function
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>
Diffstat (limited to 'drivers/net/ehea')
-rw-r--r--drivers/net/ehea/ehea.h1
-rw-r--r--drivers/net/ehea/ehea_main.c18
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h
index 5bae7da..1321cb6 100644
--- a/drivers/net/ehea/ehea.h
+++ b/drivers/net/ehea/ehea.h
@@ -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 {
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 7897bdf..15401af 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -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);