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accel/qaic: Mask out SR-IOV PCI resources

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[ Upstream commit 8685520474bfc0fe4be83c3cbfe3fb3e1ca1514a ]

During the initialization of the qaic device, pci_select_bars() is
used to fetch a bitmask of the BARs exposed by the device. On devices
that have Virtual Functions capabilities, the bitmask includes SR-IOV
BARs.

Use a mask to filter out SR-IOV BARs if they exist.

Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250117170943.2643280-6-quic_jhugo@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Youssef Samir
2025-01-17 10:09:41 -07:00
committed by Greg Kroah-Hartman
parent fbdf410d3b
commit a21971b4be
1 changed files with 1 additions and 1 deletions
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2
drivers/accel/qaic/qaic_drv.c
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@@ -400,7 +400,7 @@ static int init_pci(struct qaic_device *qdev, struct pci_dev *pdev)
int bars;
int ret;
bars = pci_select_bars(pdev, IORESOURCE_MEM);
bars = pci_select_bars(pdev, IORESOURCE_MEM) & 0x3f;
/* make sure the device has the expected BARs */
if (bars != (BIT(0) | BIT(2) | BIT(4))) {