From: Sergei Miroshnichenko <s.miroshnichenko@yadro.com>
To: <linux-pci@vger.kernel.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>, Stefan Roese <sr@denx.de>,
<linux@yadro.com>,
Sergei Miroshnichenko <s.miroshnichenko@yadro.com>
Subject: [PATCH v7 19/26] PCI: hotplug: Configure MPS for hot-added bridges during bus rescan
Date: Wed, 29 Jan 2020 18:29:30 +0300 [thread overview]
Message-ID: <20200129152937.311162-20-s.miroshnichenko@yadro.com> (raw)
In-Reply-To: <20200129152937.311162-1-s.miroshnichenko@yadro.com>
Assure that MPS settings are set up for bridges which are discovered during
manually triggered rescan via sysfs. This sequence of bridge init (using
pci_rescan_bus()) will be used for pciehp hot-add events when BARs are
movable.
Signed-off-by: Sergei Miroshnichenko <s.miroshnichenko@yadro.com>
---
drivers/pci/probe.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index b810d28ebf96..5f809ddd72b4 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -3440,7 +3440,7 @@ static void pci_reassign_root_bus_resources(struct pci_bus *root)
unsigned int pci_rescan_bus(struct pci_bus *bus)
{
unsigned int max;
- struct pci_bus *root = bus;
+ struct pci_bus *root = bus, *child;
while (!pci_is_root_bus(root))
root = root->parent;
@@ -3461,6 +3461,9 @@ unsigned int pci_rescan_bus(struct pci_bus *bus)
pci_assign_unassigned_bus_resources(bus);
}
+ list_for_each_entry(child, &root->children, node)
+ pcie_bus_configure_settings(child);
+
pci_bus_add_devices(bus);
return max;
--
2.24.1
next prev parent reply other threads:[~2020-01-29 15:30 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 15:29 [PATCH v7 00/26] PCI: Allow BAR movement during boot and hotplug Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 01/26] PCI: Fix race condition in pci_enable/disable_device() Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 02/26] PCI: Enable bridge's I/O and MEM access for hotplugged devices Sergei Miroshnichenko
2020-01-30 23:12 ` Bjorn Helgaas
2020-01-29 15:29 ` [PATCH v7 03/26] PCI: hotplug: Initial support of the movable BARs feature Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 04/26] PCI: Add version of release_child_resources() aware of immovable BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 05/26] PCI: hotplug: Fix reassigning the released BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 06/26] PCI: hotplug: Recalculate every bridge window during rescan Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 07/26] PCI: hotplug: Don't allow hot-added devices to steal resources Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 08/26] PCI: hotplug: Try to reassign movable BARs only once Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 09/26] PCI: hotplug: Calculate immovable parts of bridge windows Sergei Miroshnichenko
2020-01-30 21:26 ` Bjorn Helgaas
2020-01-31 16:59 ` Sergei Miroshnichenko
2020-01-31 20:10 ` Bjorn Helgaas
2020-01-29 15:29 ` [PATCH v7 10/26] PCI: Include fixed and immovable BARs into the bus size calculating Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 11/26] PCI: hotplug: movable BARs: Compute limits for relocated bridge windows Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 12/26] PCI: Make sure bridge windows include their fixed BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 13/26] PCI: hotplug: Add support of immovable BARs to pci_assign_resource() Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 14/26] PCI: hotplug: Sort immovable BARs before assignment Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 15/26] PCI: hotplug: Enable the movable BARs feature by default Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 16/26] PCI: Ignore PCIBIOS_MIN_MEM Sergei Miroshnichenko
2020-01-30 23:52 ` Bjorn Helgaas
2020-01-31 18:19 ` Sergei Miroshnichenko
2020-01-31 20:27 ` Bjorn Helgaas
2020-02-05 13:04 ` Sergei Miroshnichenko
2020-02-05 16:32 ` Bjorn Helgaas
2020-02-12 12:16 ` Sergei Miroshnichenko
2020-02-12 14:13 ` Bjorn Helgaas
2020-01-29 15:29 ` [PATCH v7 17/26] PCI: hotplug: Ignore the MEM BAR offsets from BIOS/bootloader Sergei Miroshnichenko
2020-01-31 20:31 ` Bjorn Helgaas
2020-02-05 11:01 ` Sergei Miroshnichenko
2020-02-05 16:42 ` Bjorn Helgaas
2020-02-12 12:29 ` Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 18/26] PCI: Treat VGA BARs as immovable Sergei Miroshnichenko
2020-01-29 15:29 ` Sergei Miroshnichenko [this message]
2020-01-29 15:29 ` [PATCH v7 20/26] PNP: Don't reserve BARs for PCI when enabled movable BARs Sergei Miroshnichenko
2020-01-30 14:39 ` Rafael J. Wysocki
2020-01-30 21:14 ` Bjorn Helgaas
2020-01-31 15:48 ` Sergei Miroshnichenko
2020-01-31 19:39 ` Bjorn Helgaas
2020-01-29 15:29 ` [PATCH v7 21/26] PCI: hotplug: Don't disable the released bridge windows immediately Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 22/26] PCI: pciehp: Trigger a domain rescan on hp events when enabled movable BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 23/26] PCI: Don't claim immovable BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 24/26] PCI: hotplug: Don't reserve bus space when enabled movable BARs Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 25/26] nvme-pci: Handle " Sergei Miroshnichenko
2020-01-29 15:29 ` [PATCH v7 26/26] PCI/portdrv: Declare support of " Sergei Miroshnichenko
2020-01-30 23:37 ` [PATCH v7 00/26] PCI: Allow BAR movement during boot and hotplug Bjorn Helgaas
2020-02-03 4:56 ` Oliver O'Halloran
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