blob: ce6e06ba51dab9e008a0add06186fa4252f91175 [file] [log] [blame]
From d80190dcc4381025bb288dd62b865d115c0c7279 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <>
Date: Fri, 11 Oct 2019 07:52:54 +0200
Subject: [PATCH] net/ibmvnic: Fix EOI when running in XIVE mode.
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commit 11d49ce9f7946dfed4dcf5dbde865c78058b50ab upstream.
pSeries machines on POWER9 processors can run with the XICS (legacy)
interrupt mode or with the XIVE exploitation interrupt mode. These
interrupt contollers have different interfaces for interrupt
management : XICS uses hcalls and XIVE loads and stores on a page.
H_EOI being a XICS interface the enable_scrq_irq() routine can fail
when the machine runs in XIVE mode.
Fix that by calling the EOI handler of the interrupt chip.
Fixes: f23e0643cd0b ("ibmvnic: Clear pending interrupt after device reset")
Signed-off-by: Cédric Le Goater <>
Signed-off-by: David S. Miller <>
Signed-off-by: Paul Gortmaker <>
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 5cb55ea671e3..964e7d62f4b1 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2772,12 +2772,10 @@ static int enable_scrq_irq(struct ibmvnic_adapter *adapter,
if (adapter->resetting &&
adapter->reset_reason == VNIC_RESET_MOBILITY) {
- u64 val = (0xff000000) | scrq->hw_irq;
+ struct irq_desc *desc = irq_to_desc(scrq->irq);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
- rc = plpar_hcall_norets(H_EOI, val);
- if (rc)
- dev_err(dev, "H_EOI FAILED irq 0x%llx. rc=%ld\n",
- val, rc);
+ chip->irq_eoi(&desc->irq_data);
rc = plpar_hcall_norets(H_VIOCTL, adapter->vdev->unit_address,