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>
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 122bde5..38f6859 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8982,7 +8982,7 @@
* 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 @@
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 @@
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);
}