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tg3: Fix int selftest for recent devices.

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commit 3aa1cdf87c 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>
This commit is contained in:
Matt Carlson 2011-07-20 10:20:55 +00:00 committed by Greg Kroah-Hartman
parent f7838b55dc
commit 352d0ff21f
1 changed files with 6 additions and 2 deletions
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8
drivers/net/tg3.c
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@ -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);
}