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

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>
alistair/sunxi64-5.4-dsi
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,