From: "Gao, Zhichao" <zhichao....@intel.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1955
Refer to PCI express base specification Reversion 5.0, Version
1.0, Table 7-33, Supported Link Speeds Vector bit 3 indicate
the speed 16 GT/s and bit 4 indicate the speed 32 GT/s.
Add the support to shell command 'pci ...'.
Change the MaxLinkSpeed other values' result from 'Unknown'
to 'Reserved' to make the result align.
Cc: Ray Ni <ray...@intel.com>
Cc: Oleksiy <oleks...@ami.com>
Cc: Liming Gao <liming....@intel.com>
Signed-off-by: Zhichao Gao <zhichao....@intel.com>
---
V2:
Update the copyright.
V3:
Update the link speed to support PCI 5.0.
Update the support
.../Library/UefiShellDebug1CommandsLib/Pci.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
index ba9caa774398..3e138188cec3 100644
--- a/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
+++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c
@@ -1,7 +1,7 @@
/** @file
Main file for Pci shell Debug1 function.
- Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2005 - 2019, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -4515,8 +4515,14 @@ ExplainPcieLinkCap (
case 3:
MaxLinkSpeed = L"8.0 GT/s";
break;
+ case 4:
+ MaxLinkSpeed = L"16.0 GT/s";
+ break;
+ case 5:
+ MaxLinkSpeed = L"32.0 GT/s";
+ break;
default:
- MaxLinkSpeed = L"Unknown";
+ MaxLinkSpeed = L"Reserved";
break;
}
ShellPrintEx (-1, -1,
@@ -4672,6 +4678,12 @@ ExplainPcieLinkStatus (
case 3:
CurLinkSpeed = L"8.0 GT/s";
break;
+ case 4:
+ CurLinkSpeed = L"16.0 GT/s";
+ break;
+ case 5:
+ CurLinkSpeed = L"32.0 GT/s";
+ break;
default:
CurLinkSpeed = L"Reserved";
break;
--
2.21.0.windows.1
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