/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: niu_pktgen.s * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved * 4150 Network Circle, Santa Clara, California 95054, U.S.A. * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * For the avoidance of doubt, and except that if any non-GPL license * choice is available it will apply instead, Sun elects to use only * the General Public License version 2 (GPLv2) at this time for any * software where a choice of GPL license versions is made * available with the language indicating that GPLv2 or any later version * may be used, or where a choice of which version of the GPL is applied is * otherwise unspecified. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * * ========== Copyright Header End ============================================ */ SECTION .HTRAPS .text #ifdef ENABLE_NIU_BG_TX .global NIU_PktGenTx NIU_PktGenTx: save NIU_PktGenTx_Initflow: ! $EV trig_pc_d(1, @VA(.HTRAPS.NIU_PktGenTx_Initflow)) -> pktGenConfig(NIU_BG_TX_MAC_ID, FRAME_TYPE, FRAME_CLASS,NIU_BG_TX_PKT_LEN,0,0,1) nop NIU_PktGenTx_Gen_Packet: ! $EV trig_pc_d(1, @VA(.HTRAPS.NIU_PktGenTx_Gen_Packet)) -> TxPktGen(NIU_BG_TX_MAC_ID, NIU_BG_TX_DMA_NUM_HEX, NIU_BG_TX_PKT_COUNT, 0, 0, 0, 1) /* Small delay loop to wait for packets to be written to DRAM */ best_set_reg(NIU_BG_TX_PKT_COUNT, %l7, %l0) NIU_PktGenTx_Gen_Packet_loop: brnz %l0, NIU_PktGenTx_Gen_Packet_loop dec %l0 NIU_PktGenTx_SetTxRingKick: ! $EV trig_pc_d(1, @VA(.HTRAPS.NIU_PktGenTx_SetTxRingKick)) -> NIU_SetTxRingKick(NIU_BG_TX_MAC_ID, NIU_BG_TX_DMA_NUM_HEX, 0, 0, 0, 1) best_set_reg(NIU_PKTGEN_CSR_EV2A_TX_RNG_KICK, %l7, %l2) #ifdef FC_NO_PEU_VERA ! PEP does not support 64-bit access, so use two 32-bit loads lduw [%l2], %l3 lduw [%l2+4], %l7 sllx %l3, 32, %l3 add %l7, %l3, %l3 #else // FC_NO_PEU_VERA ldx [%l2], %l3 #endif // FC_NO_PEU_VERA best_set_reg(mpeval(TX_RING_KICK_Addr+(INTR0x60_NIU_TX_DMA_0*0x200)), %l7, %l2) stxa %l3, [%l2]ASI_PRIMARY_LITTLE NIU_PktGenTx_SetTxCs: best_set_reg(TX_CS_Data, %l7, %l3) best_set_reg(mpeval(TX_CS_Addr+(INTR0x60_NIU_TX_DMA_0*0x200)), %l7, %l2) stxa %l3, [%l2]ASI_PRIMARY_LITTLE ret restore #endif /* ENABLE_NIU_BG_TX */ /*************************************************************************** * NIU_PktRcv: * Kick off another set of RX packets ***************************************************************************/ NIU_PktRcv: nop P_NIU_Rx_GenPkt: !$EV trig_pc_d(1, @VA(.HTRAPS.P_NIU_Rx_GenPkt)) -> NIU_RxGenPkt(MAC_ID, RXDMA_CHNL, RXMAC_PKTCNT, MAC_PKT_LEN, 0, 0, 1) retl nop