From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001 From: Angelos Mouzakitis Date: Tue, 10 Oct 2023 14:33:42 +0000 Subject: Add submodule dependency files Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec --- roms/edk2/NetworkPkg/SnpDxe/Statistics.c | 224 +++++++++++++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 roms/edk2/NetworkPkg/SnpDxe/Statistics.c (limited to 'roms/edk2/NetworkPkg/SnpDxe/Statistics.c') diff --git a/roms/edk2/NetworkPkg/SnpDxe/Statistics.c b/roms/edk2/NetworkPkg/SnpDxe/Statistics.c new file mode 100644 index 000000000..480e26178 --- /dev/null +++ b/roms/edk2/NetworkPkg/SnpDxe/Statistics.c @@ -0,0 +1,224 @@ +/** @file + Implementation of collecting the statistics on a network interface. + +Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.
+SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + + +#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; +} -- cgit 1.2.3-korg