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From: Khoa To <khot@linux.microsoft.com>
To: dev@dpdk.org
Cc: dmitry.kozliuk@gmail.com,
pallavi.kadam@intel.com
Date: Thu, 18 Feb 2021 10:40:02 -0800
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Subject: [dpdk-dev] [PATCH v2] bus/pci/windows: support for PCI scan allowed
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EAL -a and -b options are used to specify which PCI devices are
explicitly allowed or blocked during PCI bus scan. This evaluation
is missing in the Windows implementation of rte_pci_scan.
This patch provides this missing functionality, so that apps can specify
which NetUIO devices to ignore during PCI bus scan.
Signed-off-by: Khoa To <khot@linux.microsoft.com>
---
v2:
* Truncate commit description lines to 75 charaters or less
drivers/bus/pci/windows/pci.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/bus/pci/windows/pci.c b/drivers/bus/pci/windows/pci.c
index f66258452..0bba05eb4 100644
--- a/drivers/bus/pci/windows/pci.c
+++ b/drivers/bus/pci/windows/pci.c
@@ -396,6 +396,7 @@ rte_pci_scan(void)
DWORD device_index = 0, found_device = 0;
HDEVINFO dev_info;
SP_DEVINFO_DATA device_info_data;
+ struct rte_pci_addr addr;
/* for debug purposes, PCI can be disabled */
if (!rte_eal_has_pci())
@@ -420,6 +421,13 @@ rte_pci_scan(void)
&GUID_DEVCLASS_NET) ||
IsEqualGUID(&(device_info_data.ClassGuid),
&GUID_DEVCLASS_NETUIO)) {
+
+ if (get_device_pci_address(dev_info, &device_info_data, &addr) != 0)
+ continue;
+
+ if (rte_pci_ignore_device(&addr))
+ continue;
+
ret = pci_scan_one(dev_info, &device_info_data);
if (ret == ERROR_SUCCESS)
found_device++;
--
2.29.0.vfs.0.0