From 3aa1cdf87c0b3f2345e75c474acc32ebbf0a4724 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Wed, 20 Jul 2011 10:20:55 +0000 Subject: [PATCH] tg3: Fix int selftest for recent devices. 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 Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index e5c1bc919b4d..f2b0839f9810 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -9183,7 +9183,7 @@ 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); } @@ -9211,6 +9211,10 @@ 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); } @@ -9225,7 +9229,7 @@ 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); }