mirror of
https://github.com/acidanthera/audk.git
synced 2025-10-25 17:23:53 +02:00
c9325700d0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10877 6f19259b-4bc3-4df7-8a09-765794883524
231 lines
7.6 KiB
C
231 lines
7.6 KiB
C
/** @file
|
|
Implementation of collecting the statistics on a network interface.
|
|
|
|
Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials are licensed
|
|
and made available under the terms and conditions of the BSD License which
|
|
accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
|
|
#include "Snp.h"
|
|
|
|
|
|
/**
|
|
Resets or collects the statistics on a network interface.
|
|
|
|
This function resets or collects the statistics on a network interface. If the
|
|
size of the statistics table specified by StatisticsSize is not big enough for
|
|
all the statistics that are collected by the network interface, then a partial
|
|
buffer of statistics is returned in StatisticsTable, StatisticsSize is set to
|
|
the size required to collect all the available statistics, and
|
|
EFI_BUFFER_TOO_SMALL is returned.
|
|
If StatisticsSize is big enough for all the statistics, then StatisticsTable
|
|
will be filled, StatisticsSize will be set to the size of the returned
|
|
StatisticsTable structure, and EFI_SUCCESS is returned.
|
|
If the driver has not been initialized, EFI_DEVICE_ERROR will be returned.
|
|
If Reset is FALSE, and both StatisticsSize and StatisticsTable are NULL, then
|
|
no operations will be performed, and EFI_SUCCESS will be returned.
|
|
If Reset is TRUE, then all of the supported statistics counters on this network
|
|
interface will be reset to zero.
|
|
|
|
@param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.
|
|
@param Reset Set to TRUE to reset the statistics for the network interface.
|
|
@param StatisticsSize On input the size, in bytes, of StatisticsTable. On output
|
|
the size, in bytes, of the resulting table of statistics.
|
|
@param StatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
|
|
contains the statistics. Type EFI_NETWORK_STATISTICS is
|
|
defined in "Related Definitions" below.
|
|
|
|
@retval EFI_SUCCESS The requested operation succeeded.
|
|
@retval EFI_NOT_STARTED The Simple Network Protocol interface has not been
|
|
started by calling Start().
|
|
@retval EFI_BUFFER_TOO_SMALL StatisticsSize is not NULL and StatisticsTable is
|
|
NULL. The current buffer size that is needed to
|
|
hold all the statistics is returned in StatisticsSize.
|
|
@retval EFI_BUFFER_TOO_SMALL StatisticsSize is not NULL and StatisticsTable is
|
|
not NULL. The current buffer size that is needed
|
|
to hold all the statistics is returned in
|
|
StatisticsSize. A partial set of statistics is
|
|
returned in StatisticsTable.
|
|
@retval EFI_INVALID_PARAMETER StatisticsSize is NULL and StatisticsTable is not
|
|
NULL.
|
|
@retval EFI_DEVICE_ERROR The Simple Network Protocol interface has not
|
|
been initialized by calling Initialize().
|
|
@retval EFI_DEVICE_ERROR An error was encountered collecting statistics
|
|
from the NIC.
|
|
@retval EFI_UNSUPPORTED The NIC does not support collecting statistics
|
|
from the network interface.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SnpUndi32Statistics (
|
|
IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
|
|
IN BOOLEAN Reset,
|
|
IN OUT UINTN *StatisticsSize, OPTIONAL
|
|
IN OUT EFI_NETWORK_STATISTICS *StatisticsTable OPTIONAL
|
|
)
|
|
{
|
|
SNP_DRIVER *Snp;
|
|
PXE_DB_STATISTICS *Db;
|
|
UINT64 *Stp;
|
|
UINT64 Mask;
|
|
UINTN Size;
|
|
UINTN Index;
|
|
EFI_TPL OldTpl;
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// Get pointer to SNP driver instance for *This.
|
|
//
|
|
if (This == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
|
|
|
|
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
|
|
|
//
|
|
// Return error if the SNP is not initialized.
|
|
//
|
|
switch (Snp->Mode.State) {
|
|
case EfiSimpleNetworkInitialized:
|
|
break;
|
|
|
|
case EfiSimpleNetworkStopped:
|
|
Status = EFI_NOT_STARTED;
|
|
goto ON_EXIT;
|
|
|
|
default:
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto ON_EXIT;
|
|
}
|
|
//
|
|
// if we are not resetting the counters, we have to have a valid stat table
|
|
// with >0 size. if no reset, no table and no size, return success.
|
|
//
|
|
if (!Reset && StatisticsSize == NULL) {
|
|
Status = (StatisticsTable != NULL) ? EFI_INVALID_PARAMETER : EFI_SUCCESS;
|
|
goto ON_EXIT;
|
|
}
|
|
//
|
|
// Initialize UNDI Statistics CDB
|
|
//
|
|
Snp->Cdb.OpCode = PXE_OPCODE_STATISTICS;
|
|
Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
|
|
Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;
|
|
Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;
|
|
Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
|
|
Snp->Cdb.IFnum = Snp->IfNum;
|
|
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
|
|
|
|
if (Reset) {
|
|
Snp->Cdb.OpFlags = PXE_OPFLAGS_STATISTICS_RESET;
|
|
Snp->Cdb.DBsize = PXE_DBSIZE_NOT_USED;
|
|
Snp->Cdb.DBaddr = PXE_DBADDR_NOT_USED;
|
|
Db = Snp->Db;
|
|
} else {
|
|
Snp->Cdb.OpFlags = PXE_OPFLAGS_STATISTICS_READ;
|
|
Snp->Cdb.DBsize = (UINT16) sizeof (PXE_DB_STATISTICS);
|
|
Snp->Cdb.DBaddr = (UINT64)(UINTN) (Db = Snp->Db);
|
|
}
|
|
//
|
|
// Issue UNDI command and check result.
|
|
//
|
|
DEBUG ((EFI_D_NET, "\nsnp->undi.statistics() "));
|
|
|
|
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
|
|
|
|
switch (Snp->Cdb.StatCode) {
|
|
case PXE_STATCODE_SUCCESS:
|
|
break;
|
|
|
|
case PXE_STATCODE_UNSUPPORTED:
|
|
DEBUG (
|
|
(EFI_D_ERROR,
|
|
"\nsnp->undi.statistics() %xh:%xh\n",
|
|
Snp->Cdb.StatFlags,
|
|
Snp->Cdb.StatCode)
|
|
);
|
|
|
|
Status = EFI_UNSUPPORTED;
|
|
goto ON_EXIT;
|
|
|
|
default:
|
|
DEBUG (
|
|
(EFI_D_ERROR,
|
|
"\nsnp->undi.statistics() %xh:%xh\n",
|
|
Snp->Cdb.StatFlags,
|
|
Snp->Cdb.StatCode)
|
|
);
|
|
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
if (Reset) {
|
|
Status = EFI_SUCCESS;
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
if (StatisticsTable == NULL) {
|
|
*StatisticsSize = sizeof (EFI_NETWORK_STATISTICS);
|
|
Status = EFI_BUFFER_TOO_SMALL;
|
|
goto ON_EXIT;
|
|
}
|
|
//
|
|
// Convert the UNDI statistics information to SNP statistics
|
|
// information.
|
|
//
|
|
ZeroMem (StatisticsTable, *StatisticsSize);
|
|
Stp = (UINT64 *) StatisticsTable;
|
|
Size = 0;
|
|
|
|
for (Index = 0, Mask = 1; Index < 64; Index++, Mask = LShiftU64 (Mask, 1), Stp++) {
|
|
//
|
|
// There must be room for a full UINT64. Partial
|
|
// numbers will not be stored.
|
|
//
|
|
if ((Index + 1) * sizeof (UINT64) > *StatisticsSize) {
|
|
break;
|
|
}
|
|
|
|
if ((Db->Supported & Mask) != 0) {
|
|
*Stp = Db->Data[Index];
|
|
Size = Index + 1;
|
|
} else {
|
|
SetMem (Stp, sizeof (UINT64), 0xFF);
|
|
}
|
|
}
|
|
//
|
|
// Compute size up to last supported statistic.
|
|
//
|
|
while (++Index < 64) {
|
|
if ((Db->Supported & (Mask = LShiftU64 (Mask, 1))) != 0) {
|
|
Size = Index;
|
|
}
|
|
}
|
|
|
|
Size *= sizeof (UINT64);
|
|
|
|
if (*StatisticsSize >= Size) {
|
|
*StatisticsSize = Size;
|
|
Status = EFI_SUCCESS;
|
|
} else {
|
|
*StatisticsSize = Size;
|
|
Status = EFI_BUFFER_TOO_SMALL;
|
|
}
|
|
|
|
ON_EXIT:
|
|
gBS->RestoreTPL (OldTpl);
|
|
|
|
return Status;
|
|
}
|