* [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset.
@ 2009-06-23 19:00 Ron Mercer
2009-06-23 19:00 ` [net-2.6 PATCH 2/2] qla3xxx: Don't sleep while holding lock Ron Mercer
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Ron Mercer @ 2009-06-23 19:00 UTC (permalink / raw)
To: davem; +Cc: netdev, ron.mercer
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
---
drivers/net/qla3xxx.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index cadc32c..d9e3835 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -3151,7 +3151,8 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
(ISP_SERIAL_PORT_IF_WE |
(ISP_SERIAL_PORT_IF_WE << 16)));
-
+ /* Give the PHY time to come out of reset. */
+ mdelay(100);
qdev->port_link_state = LS_DOWN;
netif_carrier_off(qdev->ndev);
--
1.6.0.2
^ permalink raw reply related [flat|nested] 5+ messages in thread* [net-2.6 PATCH 2/2] qla3xxx: Don't sleep while holding lock.
2009-06-23 19:00 [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset Ron Mercer
@ 2009-06-23 19:00 ` Ron Mercer
2009-06-23 23:36 ` David Miller
2009-06-23 23:36 ` [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset David Miller
2009-06-24 8:56 ` Franco Fichtner
2 siblings, 1 reply; 5+ messages in thread
From: Ron Mercer @ 2009-06-23 19:00 UTC (permalink / raw)
To: davem; +Cc: netdev, ron.mercer
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
---
drivers/net/qla3xxx.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index d9e3835..56333ee 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -3143,6 +3143,7 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
(void __iomem *)port_regs;
u32 delay = 10;
int status = 0;
+ unsigned long hw_flags = 0;
if(ql_mii_setup(qdev))
return -1;
@@ -3352,7 +3353,9 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
value = ql_read_page0_reg(qdev, &port_regs->portStatus);
if (value & PORT_STATUS_IC)
break;
+ spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
msleep(500);
+ spin_lock_irqsave(&qdev->hw_lock, hw_flags);
} while (--delay);
if (delay == 0) {
--
1.6.0.2
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset.
2009-06-23 19:00 [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset Ron Mercer
2009-06-23 19:00 ` [net-2.6 PATCH 2/2] qla3xxx: Don't sleep while holding lock Ron Mercer
@ 2009-06-23 23:36 ` David Miller
2009-06-24 8:56 ` Franco Fichtner
2 siblings, 0 replies; 5+ messages in thread
From: David Miller @ 2009-06-23 23:36 UTC (permalink / raw)
To: ron.mercer; +Cc: netdev
From: Ron Mercer <ron.mercer@qlogic.com>
Date: Tue, 23 Jun 2009 12:00:01 -0700
>
> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Applied.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset.
2009-06-23 19:00 [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset Ron Mercer
2009-06-23 19:00 ` [net-2.6 PATCH 2/2] qla3xxx: Don't sleep while holding lock Ron Mercer
2009-06-23 23:36 ` [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset David Miller
@ 2009-06-24 8:56 ` Franco Fichtner
2 siblings, 0 replies; 5+ messages in thread
From: Franco Fichtner @ 2009-06-24 8:56 UTC (permalink / raw)
To: Ron Mercer; +Cc: davem, netdev
Ron Mercer wrote:
> + /* Give the PHY time to come out of reset. */
> + mdelay(100);
>
Why *delay* for 100ms? This is something I pointed out quite a while ago
when
you first introduced your driver.
Looking at the other patch where you eventually replaced the delay with
a sleep
left the door wide open for a lock related issue. So I can see why the
delay works
"better" for you.
However, I also recall pointing out the locking in this driver needed
some work,
because there were spinlocks held over the duration of numerous function
calls.
It seemed like a mess, but nobody cared.
Franco
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2009-06-24 8:56 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-06-23 19:00 [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset Ron Mercer
2009-06-23 19:00 ` [net-2.6 PATCH 2/2] qla3xxx: Don't sleep while holding lock Ron Mercer
2009-06-23 23:36 ` David Miller
2009-06-23 23:36 ` [net-2.6 PATCH 1/2] qla3xxx: Give the PHY time to come out of reset David Miller
2009-06-24 8:56 ` Franco Fichtner
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