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authorMatt Carlson <mcarlson@broadcom.com>2011-07-20 10:20:55 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-03 11:40:46 -0700
commit352d0ff21f7a8ce23b0a70a80cd61e5ae566fe60 (patch)
treeccdb8996159842aabf477d1a134854a706965f67 /drivers/net/tg3.c
parentf7838b55dc1708fa0bc3170851cddc3d900c310b (diff)
tg3: Fix int selftest for recent devices.
commit 3aa1cdf87c0b3f2345e75c474acc32ebbf0a4724 upstream. This patch fixes interrupt selftest failures for recent devices (57765, 5717, 5718. 5719, 5720) by disabling MSI one-shot mode and applying the status tag workaround to the selftest code. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/net/tg3.c')
-rw-r--r--drivers/net/tg3.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 122bde5bb5a4..38f68594f76b 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8982,7 +8982,7 @@ static int tg3_test_interrupt(struct tg3 *tp)
* Turn off MSI one shot mode. Otherwise this test has no
* observable way to know whether the interrupt was delivered.
*/
- if (tg3_flag(tp, 57765_PLUS) && tg3_flag(tp, USING_MSI)) {
+ if (tg3_flag(tp, 57765_PLUS)) {
val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
tw32(MSGINT_MODE, val);
}
@@ -9010,6 +9010,10 @@ static int tg3_test_interrupt(struct tg3 *tp)
break;
}
+ if (tg3_flag(tp, 57765_PLUS) &&
+ tnapi->hw_status->status_tag != tnapi->last_tag)
+ tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
+
msleep(10);
}
@@ -9024,7 +9028,7 @@ static int tg3_test_interrupt(struct tg3 *tp)
if (intr_ok) {
/* Reenable MSI one shot mode. */
- if (tg3_flag(tp, 57765_PLUS) && tg3_flag(tp, USING_MSI)) {
+ if (tg3_flag(tp, 57765_PLUS)) {
val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
tw32(MSGINT_MODE, val);
}