> Date: Tue, 2 Apr 2019 11:45:00 +0800
> From: Jonathan Matthew <[email protected]>
>
> This makes pcidump -v show whether MSI/MSI-X interrupts are enabled
> for a device, and for MSI-X, the size of the interrupt table and
> which BAR/offset it's in.
>
> ok?
sure, ok kettenis@
> Index: pcidump.c
> ===================================================================
> RCS file: /cvs/src/usr.sbin/pcidump/pcidump.c,v
> retrieving revision 1.52
> diff -u -p -r1.52 pcidump.c
> --- pcidump.c 12 Mar 2019 01:46:21 -0000 1.52
> +++ pcidump.c 2 Apr 2019 03:24:11 -0000
> @@ -54,6 +54,8 @@ void dump_bars(int, int, int, int);
> void dump_caplist(int, int, int, u_int8_t);
> void dump_pci_powerstate(int, int, int, uint8_t);
> void dump_pcie_linkspeed(int, int, int, uint8_t);
> +void dump_msi(int, int, int, uint8_t);
> +void dump_msix(int, int, int, uint8_t);
> void print_pcie_ls(uint8_t);
> int dump_rom(int, int, int);
> int dump_vga_bios(void);
> @@ -398,6 +400,34 @@ dump_pcie_linkspeed(int bus, int dev, in
> }
>
> void
> +dump_msi(int bus, int dev, int func, u_int8_t ptr)
> +{
> + u_int32_t reg;
> +
> + if (pci_read(bus, dev, func, ptr, ®) != 0)
> + return;
> +
> + printf("\t\tEnabled: %s\n", reg & PCI_MSI_MC_MSIE ? "yes" : "no");
> +}
> +
> +void
> +dump_msix(int bus, int dev, int func, u_int8_t ptr)
> +{
> + u_int32_t reg;
> + u_int32_t table;
> +
> + if ((pci_read(bus, dev, func, ptr, ®) != 0) ||
> + (pci_read(bus, dev, func, ptr + PCI_MSIX_TABLE, &table) != 0))
> + return;
> +
> + printf("\t\tEnabled: %s; table size %d (BAR %d:%d)\n",
> + reg & PCI_MSIX_MC_MSIXE ? "yes" : "no",
> + PCI_MSIX_MC_TBLSZ(reg) + 1,
> + (table & PCI_MSIX_TABLE_BIR),
> + (table & PCI_MSIX_TABLE_OFF));
> +}
> +
> +void
> dump_pcie_enhanced_caplist(int bus, int dev, int func)
> {
> u_int32_t reg;
> @@ -458,6 +488,12 @@ dump_caplist(int bus, int dev, int func,
> case PCI_CAP_PCIEXPRESS:
> dump_pcie_linkspeed(bus, dev, func, ptr);
> dump_pcie_enhanced_caplist(bus, dev, func);
> + break;
> + case PCI_CAP_MSI:
> + dump_msi(bus, dev,func, ptr);
> + break;
> + case PCI_CAP_MSIX:
> + dump_msix(bus, dev, func, ptr);
> break;
> }
> ptr = PCI_CAPLIST_NEXT(reg);
>
>
