From 4eefa8f0131410eddaca323cd65e1ebefe3b3328 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 27 Oct 2009 15:55:22 +0000 Subject: [PATCH] igb: add single vector msi-x testing to interrupt test This change adds testing of the first msix vector to the interrupt testing. This should help with determining the cause of interrupt issues when they are encountered. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/igb_ethtool.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c index aa05f00966e..65c538f8ab1 100644 --- a/drivers/net/igb/igb_ethtool.c +++ b/drivers/net/igb/igb_ethtool.c @@ -1123,32 +1123,36 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data) *data = 0; /* Hook up test interrupt handler just for this test */ - if (adapter->msix_entries) - /* NOTE: we don't test MSI-X interrupts here, yet */ - return 0; + if (adapter->msix_entries) { + if (request_irq(adapter->msix_entries[0].vector, + &igb_test_intr, 0, netdev->name, adapter)) { + *data = 1; + return -1; + } - if (adapter->flags & IGB_FLAG_HAS_MSI) { + } else if (adapter->flags & IGB_FLAG_HAS_MSI) { shared_int = false; - if (request_irq(irq, &igb_test_intr, 0, netdev->name, netdev)) { + if (request_irq(irq, + &igb_test_intr, 0, netdev->name, adapter)) { *data = 1; return -1; } } else if (!request_irq(irq, &igb_test_intr, IRQF_PROBE_SHARED, - netdev->name, netdev)) { + netdev->name, adapter)) { shared_int = false; } else if (request_irq(irq, &igb_test_intr, IRQF_SHARED, - netdev->name, netdev)) { + netdev->name, adapter)) { *data = 1; return -1; } dev_info(&adapter->pdev->dev, "testing %s interrupt\n", (shared_int ? "shared" : "unshared")); /* Disable all the interrupts */ - wr32(E1000_IMC, 0xFFFFFFFF); + wr32(E1000_IMC, ~0); msleep(10); /* Define all writable bits for ICS */ - switch(hw->mac.type) { + switch (hw->mac.type) { case e1000_82575: ics_mask = 0x37F47EDD; break; @@ -1238,7 +1242,10 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data) msleep(10); /* Unhook test interrupt handler */ - free_irq(irq, netdev); + if (adapter->msix_entries) + free_irq(adapter->msix_entries[0].vector, adapter); + else + free_irq(irq, adapter); return *data; } -- 2.43.2