From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/drivers/xen/xen-pciback/conf_space_header.c | 63 ++++++++++++++++---------------
1 files changed, 33 insertions(+), 30 deletions(-)
diff --git a/kernel/drivers/xen/xen-pciback/conf_space_header.c b/kernel/drivers/xen/xen-pciback/conf_space_header.c
index 10ae24b..ac45cdc 100644
--- a/kernel/drivers/xen/xen-pciback/conf_space_header.c
+++ b/kernel/drivers/xen/xen-pciback/conf_space_header.c
@@ -6,6 +6,7 @@
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
#include <linux/kernel.h>
#include <linux/pci.h>
@@ -67,54 +68,59 @@
dev_data = pci_get_drvdata(dev);
if (!pci_is_enabled(dev) && is_enable_cmd(value)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG DRV_NAME ": %s: enable\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "enable\n");
err = pci_enable_device(dev);
if (err)
return err;
if (dev_data)
dev_data->enable_intx = 1;
} else if (pci_is_enabled(dev) && !is_enable_cmd(value)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG DRV_NAME ": %s: disable\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "disable\n");
pci_disable_device(dev);
if (dev_data)
dev_data->enable_intx = 0;
}
if (!dev->is_busmaster && is_master_cmd(value)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG DRV_NAME ": %s: set bus master\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "set bus master\n");
pci_set_master(dev);
} else if (dev->is_busmaster && !is_master_cmd(value)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG DRV_NAME ": %s: clear bus master\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "clear bus master\n");
pci_clear_master(dev);
}
if (!(cmd->val & PCI_COMMAND_INVALIDATE) &&
(value & PCI_COMMAND_INVALIDATE)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG
- DRV_NAME ": %s: enable memory-write-invalidate\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "enable memory-write-invalidate\n");
err = pci_set_mwi(dev);
if (err) {
- pr_warn("%s: cannot enable memory-write-invalidate (%d)\n",
- pci_name(dev), err);
+ dev_warn(&dev->dev, "cannot enable memory-write-invalidate (%d)\n",
+ err);
value &= ~PCI_COMMAND_INVALIDATE;
}
} else if ((cmd->val & PCI_COMMAND_INVALIDATE) &&
!(value & PCI_COMMAND_INVALIDATE)) {
- if (unlikely(verbose_request))
- printk(KERN_DEBUG
- DRV_NAME ": %s: disable memory-write-invalidate\n",
- pci_name(dev));
+ dev_dbg(&dev->dev, "disable memory-write-invalidate\n");
pci_clear_mwi(dev);
+ }
+
+ if (dev_data && dev_data->allow_interrupt_control) {
+ if ((cmd->val ^ value) & PCI_COMMAND_INTX_DISABLE) {
+ if (value & PCI_COMMAND_INTX_DISABLE) {
+ pci_intx(dev, 0);
+ } else {
+ /* Do not allow enabling INTx together with MSI or MSI-X. */
+ switch (xen_pcibk_get_interrupt_type(dev)) {
+ case INTERRUPT_TYPE_NONE:
+ pci_intx(dev, 1);
+ break;
+ case INTERRUPT_TYPE_INTX:
+ break;
+ default:
+ return PCIBIOS_SET_FAILED;
+ }
+ }
+ }
}
cmd->val = value;
@@ -138,8 +144,7 @@
struct pci_bar_info *bar = data;
if (unlikely(!bar)) {
- pr_warn(DRV_NAME ": driver data not found for %s\n",
- pci_name(dev));
+ dev_warn(&dev->dev, "driver data not found\n");
return XEN_PCI_ERR_op_failed;
}
@@ -175,8 +180,7 @@
u32 mask;
if (unlikely(!bar)) {
- pr_warn(DRV_NAME ": driver data not found for %s\n",
- pci_name(dev));
+ dev_warn(&dev->dev, "driver data not found\n");
return XEN_PCI_ERR_op_failed;
}
@@ -209,8 +213,7 @@
struct pci_bar_info *bar = data;
if (unlikely(!bar)) {
- pr_warn(DRV_NAME ": driver data not found for %s\n",
- pci_name(dev));
+ dev_warn(&dev->dev, "driver data not found\n");
return XEN_PCI_ERR_op_failed;
}
@@ -414,8 +417,8 @@
default:
err = -EINVAL;
- pr_err("%s: Unsupported header type %d!\n",
- pci_name(dev), dev->hdr_type);
+ dev_err(&dev->dev, "Unsupported header type %d!\n",
+ dev->hdr_type);
break;
}
--
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