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net/ibmvnic: Fix EOI when running in XIVE mode.

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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: f23e0643cd ("ibmvnic: Clear pending interrupt after device reset")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cédric Le Goater 2019-10-11 07:52:54 +02:00 committed by David S. Miller
parent c23936fad7
commit 11d49ce9f7
1 changed files with 3 additions and 5 deletions
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8
drivers/net/ethernet/ibm/ibmvnic.c
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@ -2878,12 +2878,10 @@ static int enable_scrq_irq(struct ibmvnic_adapter *adapter,
if (test_bit(0, &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,