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D21008.1776490272.diff
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Index: sys/compat/linuxkpi/common/include/linux/device.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/device.h
+++ sys/compat/linuxkpi/common/include/linux/device.h
@@ -110,6 +110,7 @@
void *driver_data;
unsigned int irq;
#define LINUX_IRQ_INVALID 65535
+ bool msi;
unsigned int msix;
unsigned int msix_max;
const struct attribute_group **groups;
Index: sys/compat/linuxkpi/common/include/linux/interrupt.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/interrupt.h
+++ sys/compat/linuxkpi/common/include/linux/interrupt.h
@@ -55,6 +55,8 @@
static inline int
linux_irq_rid(struct device *dev, unsigned int irq)
{
+ if (dev->msi)
+ return (1);
if (irq == dev->irq)
return (0);
return irq - dev->msix + 1;
Index: sys/compat/linuxkpi/common/include/linux/pci.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/pci.h
+++ sys/compat/linuxkpi/common/include/linux/pci.h
@@ -227,6 +227,7 @@
unsigned int devfn;
uint32_t class;
uint8_t revision;
+ bool msi_enabled;
};
static inline struct resource_list_entry *
@@ -447,6 +448,19 @@
pdev->dev.msix_max = 0;
}
+#define pci_disable_msi(pdev) \
+ linux_pci_disable_msi(pdev)
+
+static inline void
+linux_pci_disable_msi(struct pci_dev *pdev)
+{
+
+ pci_release_msi(pdev->dev.bsddev);
+ pdev->dev.msi = false;
+ pdev->msi_enabled = false;
+}
+
+
static inline bus_addr_t
pci_bus_address(struct pci_dev *pdev, int bar)
{
@@ -611,6 +625,32 @@
return (nvec);
}
+#define pci_enable_msi(pdev) \
+ linux_pci_enable_msi(pdev)
+
+static inline int
+pci_enable_msi(struct pci_dev *pdev)
+{
+ struct resource_list_entry *rle;
+ int error;
+ int avail;
+
+ avail = pci_msi_count(pdev->dev.bsddev);
+ if (avail < 1) {
+ return -EINVAL;
+ }
+ avail = 1;
+ if ((error = -pci_alloc_msi(pdev->dev.bsddev, &avail)) != 0) {
+ return error;
+ }
+ rle = linux_pci_get_rle(pdev, SYS_RES_IRQ, 1);
+ pdev->dev.msi = true;
+ pdev->dev.irq = rle->start;
+ pdev->irq = rle->start;
+ pdev->msi_enabled = true;
+ return (0);
+}
+
static inline int
pci_channel_offline(struct pci_dev *pdev)
{
Index: sys/compat/linuxkpi/common/src/linux_pci.c
===================================================================
--- sys/compat/linuxkpi/common/src/linux_pci.c
+++ sys/compat/linuxkpi/common/src/linux_pci.c
@@ -247,6 +247,7 @@
else
pdev->dev.irq = LINUX_IRQ_INVALID;
pdev->irq = pdev->dev.irq;
+ pdev->msi_enabled = false;
error = linux_pdev_dma_init(pdev);
if (error)
goto out_dma_init;

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