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6ab7e1f95e
linux/drivers/pci/hotplug
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Pali Rohár 6d4671b534 PCI: pciehp: Enable Command Completed Interrupt only if supported 
The No Command Completed Support bit in the Slot Capabilities register
indicates whether Command Completed Interrupt Enable is unsupported.

We already check whether No Command Completed Support bit is set in
pcie_wait_cmd(), and do not wait in this case.

Don't enable this Command Completed Interrupt at all if NCCS is set, so
that when users dump configuration space from userspace, the dump does not
confuse them by saying that Command Completed Interrupt is not supported,
but it is enabled.

Link: https://lore.kernel.org/r/20220927141926.8895-2-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
2022-12-07 08:27:20 -06:00
..
acpi_pcihp.c PCI: Fix kernel-doc errors 2021-03-11 17:37:20 -06:00
acpiphp_core.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
acpiphp_glue.c PCI: acpiphp: Avoid setting is_hotplug_bridge for PCIe Upstream Ports 2022-11-22 13:27:28 -06:00
acpiphp_ibm.c PCI/ACPI: Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() 2022-02-04 17:10:44 -06:00
acpiphp.h PCI: acpiphp: Fix whitespace issue 2021-04-16 14:32:18 -05:00
cpci_hotplug_core.c PCI: Remove unnecessary returns 2019-08-30 14:00:34 -05:00
cpci_hotplug_pci.c PCI: cpcihp: Declare cpci_debug in header file 2021-07-01 15:32:45 -05:00
cpci_hotplug.h PCI: cpcihp: Declare cpci_debug in header file 2021-07-01 15:32:45 -05:00
cpcihp_generic.c PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate 2018-01-28 15:49:06 -06:00
cpcihp_zt5550.c PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate 2018-01-28 15:49:06 -06:00
cpcihp_zt5550.h PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate 2018-01-28 15:49:06 -06:00
cpqphp_core.c PCI: cpqphp: Remove unused assignments 2022-03-22 11:24:40 -05:00
cpqphp_ctrl.c PCI: cpqphp: Remove unused assignments 2022-03-22 11:24:40 -05:00
cpqphp_nvram.c PCI: cpqphp: Use DEFINE_SPINLOCK() for int15_lock 2021-04-14 15:24:10 -05:00
cpqphp_nvram.h PCI: Remove unnecessary returns 2019-08-30 14:00:34 -05:00
cpqphp_pci.c PCI: cpqphp: Remove unused assignments 2022-03-22 11:24:40 -05:00
cpqphp_sysfs.c PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate 2018-01-28 15:49:06 -06:00
cpqphp.h PCI: cpqphp: Use <linux/io.h> instead of <asm/io.h> 2021-11-02 14:41:58 -05:00
ibmphp_core.c PCI: ibmphp: Remove commented-out functions 2021-12-10 09:55:47 -06:00
ibmphp_ebda.c PCI: ibmphp: Fix double unmap of io_mem 2021-09-02 12:02:50 -05:00
ibmphp_hpc.c PCI: ibmphp: Remove unused assignments 2022-03-22 11:24:48 -05:00
ibmphp_pci.c PCI: ibmphp: Remove unneeded break 2020-11-20 11:17:55 -06:00
ibmphp_res.c PCI: ibmphp: Remove unused assignments 2022-03-22 11:24:48 -05:00
ibmphp.h PCI: Correct misspelled and remove duplicated words 2021-10-08 17:14:04 -05:00
Kconfig PCI: pciehp: Enable by default if USB4 enabled 2022-11-15 09:25:21 -06:00
Makefile PCI/hotplug: remove the sgi_hotplug driver 2019-08-16 11:33:56 -07:00
pci_hotplug_core.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
pciehp_core.c PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors 2022-01-12 06:42:51 -06:00
pciehp_ctrl.c pci-v5.10-changes 2020-10-22 12:41:00 -07:00
pciehp_hpc.c PCI: pciehp: Enable Command Completed Interrupt only if supported 2022-12-07 08:27:20 -06:00
pciehp_pci.c PCI: pciehp: Log messages with pci_dev, not pcie_device 2019-05-09 16:45:20 -05:00
pciehp.h PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors 2022-01-12 06:42:51 -06:00
pnv_php.c PCI: hotplug: Clean up include files 2022-04-05 11:13:33 -05:00
rpadlpar_core.c PCI: hotplug: Clean up include files 2022-04-05 11:13:33 -05:00
rpadlpar_sysfs.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
rpadlpar.h PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate 2018-01-28 15:49:06 -06:00
rpaphp_core.c PCI: hotplug: Clean up include files 2022-04-05 11:13:33 -05:00
rpaphp_pci.c PCI: hotplug: Clean up include files 2022-04-05 11:13:33 -05:00
rpaphp_slot.c PCI: hotplug: Clean up include files 2022-04-05 11:13:33 -05:00
rpaphp.h PCI: hotplug: Embed hotplug_slot 2018-09-18 17:52:15 -05:00
s390_pci_hpc.c s390/pci: implement reset_slot for hotplug slot 2021-11-08 14:17:49 +01:00
shpchp_core.c PCI: Add defines for normal and subtractive PCI bridges 2022-02-17 15:29:35 -06:00
shpchp_ctrl.c pci-v5.10-changes 2020-10-22 12:41:00 -07:00
shpchp_hpc.c PCI: shpchp: Remove unused get_mode1_ECC_cap callback 2022-11-22 14:09:51 -06:00
shpchp_pci.c PCI: shpchp: Make shpchp_unconfigure_device() void 2020-05-21 15:23:20 -05:00
shpchp_sysfs.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
shpchp.h PCI: shpchp: Remove unused get_mode1_ECC_cap callback 2022-11-22 14:09:51 -06:00
TODO PCI: shpchp: Remove unused get_mode1_ECC_cap callback 2022-11-22 14:09:51 -06:00