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|
// **************************************************************************************************************
// * FILE PURPOSE: Peform packet classification on PDSPS with a LUT1
// **************************************************************************************************************
// * FILE NAME: classify1.p
// *
// * DESCRIPTION: The PDSP code for L2 and L3 classification using a LUT1
// *
// **************************************************************************************************************
//
// TEXAS INSTRUMENTS TEXT FILE LICENSE
//
// Copyright (c) 2016 Texas Instruments Incorporated
//
// All rights reserved not granted herein.
//
// Limited License.
//
// Texas Instruments Incorporated grants a world-wide, royalty-free, non-exclusive
// license under copyrights and patents it now or hereafter owns or controls to
// make, have made, use, import, offer to sell and sell ("Utilize") this software
// subject to the terms herein. With respect to the foregoing patent license,
// such license is granted solely to the extent that any such patent is necessary
// to Utilize the software alone. The patent license shall not apply to any
// combinations which include this software, other than combinations with devices
// manufactured by or for TI (“TI Devices”). No hardware patent is licensed hereunder.
//
// Redistributions must preserve existing copyright notices and reproduce this license
// (including the above copyright notice and the disclaimer and (if applicable) source
// code license limitations below) in the documentation and/or other materials provided
// with the distribution.
//
// Redistribution and use in binary form, without modification, are permitted provided
// that the following conditions are met:
// No reverse engineering, decompilation, or disassembly of this software is
// permitted with respect to any software provided in binary form.
// Any redistribution and use are licensed by TI for use only with TI Devices.
// Nothing shall obligate TI to provide you with source code for the software
// licensed and provided to you in object code.
//
// If software source code is provided to you, modification and redistribution of the
// source code are permitted provided that the following conditions are met:
// Any redistribution and use of the source code, including any resulting derivative
// works, are licensed by TI for use only with TI Devices.
// Any redistribution and use of any object code compiled from the source code
// and any resulting derivative works, are licensed by TI for use only with TI Devices.
//
// Neither the name of Texas Instruments Incorporated nor the names of its suppliers
// may be used to endorse or promote products derived from this software without
// specific prior written permission.
//
// DISCLAIMER.
//
// THIS SOFTWARE IS PROVIDED BY TI AND TI’S LICENSORS "AS IS" AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL TI AND TI’S
// LICENSORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//
//
#define PASS_CLASSIFY1
#include "pdsp_pa.h"
#include "pdsp_mem.h"
#include "pdsp_subs.h"
#include "pm_config.h"
#include "pdsp_ver.h"
#include "pm_constants.h"
#include "parsescope.h"
// TBD: move to top layer file per PDSP image
#define PASS_C1_VER PASS_VERSION // 0x01.0x00.0x00.0x03
.origin 0
.entrypoint f_c1Init
f_c1Init:
jmp f_c1Start
header:
.codeword HEADER_MAGIC
.codeword PASS_C1_VER
.using globalScopeC1
#include "meminit.p"
f_c1Start:
call f_c1LocalInit
// Store the version number
mov r2.w0, PASS_C1_VER & 0xFFFF
mov r2.w2, PASS_C1_VER >> 16
sbco r2, PAMEM_CONST_PDSP_INFO, OFFSET_VER, 4
// Clear the mailbox
zero &r2, 12
sbco r2, cMailbox, 4, 12
// Write a non-zero value to mailbox slot 0.
mov r2, 1
sbco r2, cMailbox, 0, 4
// Wait for the set command to take hold
wbs s_flags.info.tStatus_Command0
// The host will clear mailbox slot 0 when it is ready for this PDSP to run
wbc s_flags.info.tStatus_Command0
// Do common initialization if the host has requested it
// The host requests a global init by writing a non-zero value into mailbox slot 1
// (Before clearing mailbox slot 0)
//qbbc l_c1Start0, s_flags.info.tStatus_Command1
// Note: The first PDSP at each stage should perform global init
#ifdef PASS_GLOBAL_INIT
call f_commonInit
#endif
// mov r2, 0
// sbco r2, cMailbox, 4, 4 // Clear the mailbox
l_c1Start0:
zero &s_runCxt, SIZE(s_runCxt)
// Need not store PDSP ID as it is replaced with #define
// Store the PDSP ID
// TBD: To be replaced with #define (from image build)
mov r2.b0, PASS_PDSP_ID
sbco r2.b0, PAMEM_CONST_PDSP_INFO, OFFSET_ID, 1
#ifdef PASS_PROC_RA
// Temporary debug code
//set s_runCxt.flag2.t_raEn,
//mov s_runCxt.raFlow, PASS_RA_FLOW_ID
#endif
// ****************************************************************************************************
// * FUNCTION PURPOSE: The main processing loop
// ****************************************************************************************************
// * DESCRIPTION: The packet processing state machine
// *
// * Register usage:
// *
// * R0:
// * R1: scratch
// * R2:
// * R3:
// * R4: LUT1 Status (s_l1Status) / LUT1 Command (s_l1Cmd) - lut1Scope
// * R5:
// * R6: |
// * R7: |
// * R8: |
// * R9: | LUT1 View - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: | (packet extended descriptor)
// * R15: |
// * R16: |
// * R17: | LUT1 View - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ********************************************************************************************************
.using lut1Scope
.using pktScope
.using cdeScope
.assign struct_timeAccConstants, r3, r5, s_ConstLoc
.assign struct_timeAcc, r0, r2, s_AccLoc
f_mainLoop:
#ifdef PASS_TIMESTAMP_OP
qbbc l_mainLoop000, s_runCxt.flag3.t_eoamEn
// Only when the timer feature is enabled
// look for timer roll over
qbbc l_mainLoop000, s_flags.info.tStatus_Timer
set s_flags.info.tStatus_Timer // set to clear timer event
lbco r0, PAMEM_CONST_CUSTOM, OFFSET_SYS_TIMESTAMP, 8
add r0, r0, 1
adc r1, r1, 0
sbco r0, PAMEM_CONST_CUSTOM, OFFSET_SYS_TIMESTAMP, 8
// Call EOAM time convertion routine
call f_eoamTimeConvert
l_mainLoop000:
#endif
#ifdef PASS_PROC_CMD1
// Look for command
qbbc l_mainLoop001, s_flags.info.tStatus_Command1
// If there is a command, differentiate between EOAM and IP Reassem
// in the PDSP that has both features
lbco r1, cMailbox, 4, 4
#ifdef PASS_PROC_IPSEC_NAT_T_EOAM
qbne l_mainLoop_not_ipsec_nat_t_cfg, r1.b3, FIRMWARE_CMD_IPSEC_NAT_T_EOAM_CFG
// Clear the valid bit fields
not r1.b2, r1.b1
// force clear valid bits to zero and retain valid bits positions
and s_runCxt.flag2, s_runCxt.flag2, r1.b2
// Clear garbage ctrl bit fields (since the sender already cleard it no need */
// and r1.b0, r1.b0, r1.b1
// set the run time flags
or s_runCxt.flag2, s_runCxt.flag2, r1.b0
// clear the command flag
mov r1, 0
sbco r1, cMailbox, FIRMWARE_CMD_IPSEC_NAT_T_EOAM_CFG_OFFSET, 4
jmp l_mainLoop001
l_mainLoop_not_ipsec_nat_t_cfg:
#endif
#ifdef PASS_PROC_EOAM_CMD
qbne l_mainLoop_not_eoam_cfg, r1.b3, FIRMWARE_CMD_EOAM_CFG
// Clear the valid bit fields
not r1.b2, r1.b1
// force clear valid bits to zero and retain valid bits positions
and s_runCxt.flag3, s_runCxt.flag3, r1.b2
// Clear garbage ctrl bit fields (since the sender already cleard it no need */
// and r1.b0, r1.b0, r1.b1
// set the run time flags
or s_runCxt.flag3, s_runCxt.flag3, r1.b0
// clear the command flag
mov r1, 0
sbco r1, cMailbox, FIRMWARE_CMD_EOAM_CFG_OFFSET, 4
jmp l_mainLoop001
l_mainLoop_not_eoam_cfg:
#endif
#ifdef PASS_PROC_IP_REASSEM
qbne l_mainLoop_not_reasm_cfg, r1.b3, FIRMWARE_CMD_IP_REASSEM_CFG
// Process IP Reassembly Configuration Update
mov r0.w0, FIRMWARE_INNER_IP_PDSP
qbeq l_mainLoop00_ipReassem_1, r0.w0, PASS_PDSP_ID
mov r1.w0, OFFSET_OUT_IP_REASSM_CFG
jmp l_mainLoop00_ipReassem_2
l_mainLoop00_ipReassem_1:
mov r1.w0, OFFSET_IN_IP_REASSM_CFG
l_mainLoop00_ipReassem_2:
lbco s_paIpReassmCfg, PAMEM_CONST_CUSTOM, r1.w0, SIZE(s_paIpReassmCfg)
lbco s_ipReassmCxtInit, PAMEM_CONST_IP_REASSEM_CONTEXT, 0, OFFSET(s_ipReassmCxtInit.tfMapTemp)
qbne l_mainLoop00_ipReassem_3, s_paIpReassmCfg.numTrafficFlow, 0
clr s_runCxt.flags.t_ipReassmEn
zero &s_ipReassmCxtInit, OFFSET(s_ipReassmCxtInit.tfMapTemp)
jmp l_mainLoop00_ipReassem_4
l_mainLoop00_ipReassem_3:
set s_runCxt.flags.t_ipReassmEn
mov s_ipReassmCxtInit.numTF, s_paIpReassmCfg.numTrafficFlow
mov s_ipReassmCxtInit.queue, s_paIpReassmCfg.destQueue
mov s_ipReassmCxtInit.flowId, s_paIpReassmCfg.destFlowId
l_mainLoop00_ipReassem_4:
sbco s_ipReassmCxtInit, PAMEM_CONST_IP_REASSEM_CONTEXT, 0, OFFSET(s_ipReassmCxtInit.tfMapTemp)
// clear command flag
mov r1, 0
sbco r1, cMailbox, FIRMWARE_CMD_IP_REASSEM_CFG_OFFSET, 4
// pass through
l_mainLoop_not_reasm_cfg:
#endif
#endif
l_mainLoop001:
#ifdef PASS_PROC_CMD3
// Look for command (FIRMWARE_CMD_PKT_CTRL_CFG only)
qbbc l_mainLoop003, s_flags.info.tStatus_Command3
// Process Packet Verification Configuration Update
lbco r1, cMailbox, FIRMWARE_CMD_PKT_CTRL_CFG_OFFSET, 4
qbne l_mainLoop002, r1.b3, FIRMWARE_CMD_PKT_CTRL_CFG
// set the packet control flags
#ifdef PASS_PROC_PKT_CONTROL
// Clear the valid bit fields
not r1.b2, r1.b1
// force clear valid bits to zero and retain valid bits positions
and s_runCxt.flag2, s_runCxt.flag2, r1.b2
// Clear garbage ctrl bit fields (since the sender already cleard it no need */
// and r1.b0, r1.b0, r1.b1
// set the run time flags
or s_runCxt.flag2, s_runCxt.flag2, r1.b0
// clear the command flag
mov r1, 0
sbco r1, cMailbox, FIRMWARE_CMD_PKT_CTRL_CFG_OFFSET, 4
jmp l_mainLoop003
#endif
l_mainLoop002:
// Look for command (FIRMWARE_CMD_RA_CFG only)
// qbbc l_mainLoop003, s_flags.info.tStatus_Command3
// Process RA Configuration Update
// lbco r1, cMailbox, FIRMWARE_CMD_RA_CFG_OFFSET, 4
qbne l_mainLoop003, r1.b3, FIRMWARE_CMD_RA_CFG
and s_runCxt.flag2, s_runCxt.flag2, NOT_SUBS_RA_CTRL_MASK
#ifndef PASS_PROC_RA
// Retain only RA Enable ctrl bit for other IP Processing PDSPs (clear other bits)
and r1.b0, r1.b0, SUBS_PKT_CTRL_RA_En
#endif
or s_runCxt.flag2, s_runCxt.flag2, r1.b0
#ifdef PASS_PROC_RA
mov s_runCxt.raFlow, r1.b1
#endif
// clear the command flag
mov r1, 0
sbco r1, cMailbox, FIRMWARE_CMD_RA_CFG_OFFSET, 4
// pass through
#endif
l_mainLoop003:
// Look for held packets and completed lookup
qbbc l_mainLoop5, s_runCxt.flags.t_previous_held
qbbc l_mainLoop00, s_runCxt.flags.t_held_packet
// There is already a packet pending to submit,
// We need to wait for the lookup to be complete
wbc s_flags.info.tStatus_Lut1Busy
l_mainLoop00:
qbbs l_mainLoop5, s_flags.info.tStatus_Lut1Busy
// A lookup is complete for the held packet
xin XID_LUT1CMD, s_l1Status, SIZE(s_l1Status)
// Common operation regredless of the lookup result
// Pop the next extended info and write it out
xin XID_PINFO_B_POP, s_pktExtDescr, SIZE(s_pktExtDescr)
// Wait for the held packet to appear in the CDE
// (Its almost certainly already there)
wbs s_flags.info.tStatus_CDEHeldPacket
wbc s_flags.info.tStatus_CDEBusy
// Load the first 20-byte to pktInfo
// The first 5 32-bit word in the pkt context may be examized and patched
lbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 20
qbbc l_mainLoop0, s_l1Status.status.L1_STATUS_ENTRY_MATCH
#ifndef PASS_PROC_FIREWALL
call f_c1ForwardHeldPacketMatch
#else
#ifdef PASS_PROC_EOAM
qbbc l_c1FwdFirewallMatch, s_runCxt.flag3.t_eoamEn
call f_c1ForwardHeldEoamPktMatch
jmp l_mainLoop1
#endif
l_c1FwdFirewallMatch:
call f_c1ForwardHeldFirewallPktMatch
#endif
jmp l_mainLoop1
l_mainLoop0:
#ifndef PASS_PROC_FIREWALL
call f_c1ForwardHeldPacketNoMatch
#else
#ifdef PASS_PROC_EOAM
qbbc l_c1FwdFirewallNoMatch, s_runCxt.flag3.t_eoamEn
call f_c1ForwardHeldEoamPktNoMatch
jmp l_mainLoop1
#endif
l_c1FwdFirewallNoMatch:
call f_c1ForwardHeldFirewallPktNoMatch
#endif
l_mainLoop1:
clr s_runCxt.flags.t_previous_held
#ifdef PASS_PROC_INGRESS_PKT_CLONE
// check whether there is extended header ready to be sent out due to packet copy
qbbc l_mainLoop1_0, s_runCxt.flags.t_extHdr_held
//restore the extended header
lbco s_pktExtDescr, PAMEM_CONST_PDSP_CXT, OFFSET_EXT_HDR_PENDING, SIZE(s_pktExtDescr)
clr s_runCxt.flags.t_extHdr_held
// send the packet out
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// pass through
l_mainLoop1_0:
#endif
qbbc l_mainLoop5, s_runCxt.flags.t_held_packet
// An already parsed packet is waiting to be submitted to the LUT
clr s_runCxt.flags.t_held_packet
qbbs l_mainLoop1_1, s_runCxt.flags.t_previous_skip
// Initiate Lookup for pending packet
set s_runCxt.flags.t_previous_held
// zero &s_l1Cmd, SIZE(s_l1Cmd)
mov s_l1Cmd.operation, LUT1_CMD_SEARCH
xout XID_LUT1CMD, s_l1Cmd, 4
jmp l_mainLoop5
l_mainLoop1_1:
// No lookup is required
clr s_runCxt.flags.t_previous_skip
// Pop the next extended info and write it out
xin XID_PINFO_B_POP, s_pktExtDescr, SIZE(s_pktExtDescr)
// Forward packet now
// mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_RELEASE
ldi s_cdeCmd.v0, CDE_CMD_HPKT_RELEASE
#ifdef PASS_LAST_PDSP
// TBD: clear Bypass Flag
lbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
clr r1.w0.t_pktBypass
sbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
qbbc l_mainLoop1_2, s_pktExtDescr.flags.fDroppedInd
set s_pktExtDescr.flags.fDropped
//clr s_pktExtDescr.flags.fDroppedInd
mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_DISCARD
l_mainLoop1_2:
#endif
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, 4
jmp l_mainLoop2
l_mainLoop2:
//clr s_runCxt.flags.t_activeLookup
jmp l_mainLoop5
// if ( (pendingConfig == FALSE) && (newPacket == TRUE) ) then parse
l_mainLoop5:
qbbs fci_mainLoop6, s_runCxt.flags.t_pendingConfig
#ifdef PASS_PROC_FIREWALL
// No special check for EOAM case is needed as rescore is never triggered
qbbc l_mainLoop5_0,s_runCxt.flag3.t_trigRescoreProc
// Skip newpacket parse, during rescore state and during held packets
qbbs fci_mainLoop6, s_runCxt.flags.t_previous_held
qbbs fci_mainLoop6, s_runCxt.flags.t_held_packet
// Rescore can be scheduled now as the LUT1 is clean (nothing held)
call f_c1FirewallRescore
l_mainLoop5_0:
#endif
qbbs f_c1Parse, s_flags.info.tStatus_CDENewPacket
// jmp fci_mainLoop7
// if ( (pendingConfig == TRUE) && (Lut1Busy == FALSE) ) then complete modify
fci_mainLoop6:
qbbc f_mainLoop, s_runCxt.flags.t_pendingConfig
qbbc l_mainLoop8, s_flags.info.tStatus_Lut1Busy
fci_mainLoop7:
jmp f_mainLoop
l_mainLoop8:
// Relative jump was out of range
jmp f_paComLut1CompleteModify // no return
//jmp f_mainLoop
.leave lut1Scope
.leave pktScope
.leave cdeScope
#ifdef PASS_TIMESTAMP_OP
// ****************************************************************************************************
// * FUNCTION PURPOSE: The EOAM time convertion processing function
// ****************************************************************************************************
// * DESCRIPTION: The EOAM Time Convert processing function
// *
// * Register usage:
// *
// * R0: scratch (r0 = roll over cnt lsw)
// * R1: scratch
// * R2: scratch
// * R3: scratch
// * R4: LUT1 Status (s_l1Status) / LUT1 Command (s_l1Cmd) - lut1Scope
// * R5:
// * R6: |
// * R7: |
// * R8: |
// * R9: | LUT1 View - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: | (packet extended descriptor)
// * R15: |
// * R16: |
// * R17: | LUT1 View - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ********************************************************************************************************
// Local structure defintion and assignment
.struct strct_thrChk
.u16 numRo
.u16 rollOverCnt
.ends
.assign strct_thrChk, r3, r3, s_thrChk
.assign struct_timeAcc, r0, r2, s_accLoc
f_eoamTimeConvert:
//
// uint32_t nsAcc;
//
// Below code is to covert the ticks to seconds/nano seconds
// if (rollover)
// {
// /* increment the roll over count, when detected */
// rollOverCnt++;
//
// /* accumulate the nano seconds time associated with a roll over */
// nsAccWithErr += nsRoAcc;
//
// /* Check if we reached the threshold to reset for the error accumulation */
// if (rollOverCnt == numRo)
// {
// /* Clear the rollOver count */
// rollOverCnt = 0;
// /* clear the current accumulation till threshold to zero */
// nsAccWithErr = 0;
// /* Increment big Roll Over accumulation, correcting for the errors */
// nsAccNoErr += nsNumRoAcc;
// /* Check if we crossed a second in accumulation */
// if (nsAccNoErr > PA_ONE_SEC_EXP_IN_NS)
// {
// nsAccNoErr -= PA_ONE_SEC_EXP_IN_NS;
// secAcc++;
// }
// }
// }
// Load the accumulation constants
lbco s_thrChk, PAMEM_CONST_RO_TIME_ACC_TABLE, OFFSET_NUMRO, SIZE(s_thrChk)
add s_thrChk.rollOverCnt, s_thrChk.rollOverCnt, 1
// load accumulation values (global)
lbco s_accLoc, PAMEM_CONST_CUSTOM, OFFSET_RAW_TIME_ACC, SIZE(s_accLoc)
lbco r5, PAMEM_CONST_RO_TIME_ACC_TABLE, OFFSET_NS_ROACC, 4
add s_accLoc.nsAccWithErr, s_accLoc.nsAccWithErr, r5
// Check if we reached the threshold to reset for the error accumulation
qblt l_eoamTimeConvert_1, s_thrChk.numRo, s_thrChk.rollOverCnt
mov s_thrChk.rollOverCnt, 0
lbco r5, PAMEM_CONST_RO_TIME_ACC_TABLE, OFFSET_NS_NUM_ROACC, 4
add s_accLoc.nsAccNoErr, s_accLoc.nsAccNoErr, r5
// We can overwrite this as it is not used at this time and it is not stored in the scratch memory
mov r5, PA_ONE_SEC_EXP_IN_NS
// clear it locally before writing to scratch memory
mov s_accLoc.nsAccWithErr, 0
qblt l_eoamTimeConvert_1, r5, s_accLoc.nsAccNoErr
sub s_accLoc.nsAccNoErr, s_accLoc.nsAccNoErr, r5
add s_accLoc.secAcc, s_accLoc.secAcc, 1
l_eoamTimeConvert_1:
// store the roll over count
sbco s_thrChk.rollOverCnt, PAMEM_CONST_RO_TIME_ACC_TABLE, OFFSET_RO_COUNT, SIZE(s_thrChk.rollOverCnt)
// store the accumulation values (global)
sbco s_accLoc, PAMEM_CONST_CUSTOM, OFFSET_RAW_TIME_ACC, SIZE(s_accLoc)
ret
#endif
#ifdef PASS_PROC_FIREWALL
// **************************************************************************************************
// * FUNCTION PURPOSE: Forward a packet that had a match in the Firewall LUT1 search
// **************************************************************************************************
// * DESCRIPTION: On entry r5 contains the LUT1 status, which indicated a match for the
// * held packet, and the match index value. The packet is forwarded as required.
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2:
// * R3:
// * R4:
// * R5: LUT1 Status (s_l1Status) / LUT1 Command (s_l1Cmd) - lut1Scope
// * R6:
// * R7:
// * R8: LUT1 info (s_l1fAcl) -
// * R9: | -
// * R10: | Forward match Info (valid at function exit) - lut1MatchSCope
// * R11: | -
// * R12: | -
// * R13:
// * R14: |
// * R15: | Extended Header Info
// * R16: |
// * R17: |
// * R18: |
// * R19: | usrStats FIFO CB
// * R20: | usrStats Request
// * R21:
// * R22: |
// * R23: |
// * R24: | Packet context
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *
// **************************************************************************************************/
.using lut1Scope
.using lut1MatchScope
.using pktScope // Used only for sizing
.using cdeScope
f_c1ForwardHeldFirewallPktMatch:
//Record the match
//mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_MATCH
// Load the routing info associated with LUT1
// This is the l1Info and match routing information
lsl r1.w0, s_l1Status.index, 6 // l1 index * 256
lbco &s_l1fAcl, PAMEM_CONST_PDSP_LUT1_INFO, r1.w0, SIZE(s_l1fAcl)+SIZE(s_fmPlace) // l1Info + routing info
// TBD: Update Firewall-related statistics
mov s_stats.value, s_l1fAcl.statsCmd // Update the packet counter
sub r0, s_pktCxt.endOffset, s_pktCxt.startOffset
mov s_stats.value, s_l1fAcl.statsCmd2 // Update the byte counter
// Record the effective packet size for user statistics update
// mov s_usrStatsReq.pktSize, s_pktCxt.endOffset
// Load control flags
// Note that it should be loaded only once to prevent infinite re-entry for fragments routing (already loaded)
// lbco s_pktCxt.flags, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.flags), SIZE(s_pktCxt.flags)
fci_stdHeldFirewallPktForward:
// Do not release the packet ID if the packet remains in PA
qbne l_stdHeldFirewallPktForward1, s_matchForward.forwardType, PA_FORWARD_TYPE_PA
qbbc l_stdHeldFirewallPktForward0_0, s_matchForward_pa.ctrlflags.t_pa_fwd_ctrlflags_pkt_mark
// Mark this package for further processing
// The first 16-byte of packet Info has already been loaded
set s_pktCxt.flags.t_flag_acl_mark
sbco s_pktCxt.flags, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt.flags), SIZE(s_pktCxt.flags)
l_stdHeldFirewallPktForward0_0:
qbbs l_stdHeldFirewallPktForward0_1, s_runCxt.flag2.t_raEn
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, s_matchForward_pa.dest
// Load flags and operation in one instruction
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
jmp l_stdHeldFirewallPktForward0_2
l_stdHeldFirewallPktForward0_1:
// Send the packet on its way to RA
qbbs l_stdHeldFirewallPktForward0_set_ra_dest_1, s_runCxt.flag2.t_raUseLocDMA
// use global DMA
mov s_pktExtDescr.threadId, THREADID_CDMA0
mov s_cdeCmdPkt.destQueue, PASS_RA_QUEUE
jmp l_stdHeldFirewallPktForward0_set_ra_dest_end
l_stdHeldFirewallPktForward0_set_ra_dest_1:
// use local DMA
mov s_pktExtDescr.threadId, THREADID_CDMA1
mov s_cdeCmdPkt.destQueue, PASS_RA_LOC_QUEUE
// pass through
l_stdHeldFirewallPktForward0_set_ra_dest_end:
// Free the packet Ext Info
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
sbco s_cdeCmdPkt.destQueue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
mov s_cdeCmdPkt.psInfoSize, 32
mov s_cdeCmdPkt.flowId, s_runCxt.raFlow
qbbc l_stdHeldFirewallPktForward0_2, s_matchForward_pa.ctrlflags.t_pa_fwd_ctrlflags_pkt_drop
// Set drop flag
lbco r1.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), SIZE(s_pktDescr.psFlags_errorFlags)
set r1.b0.t_psFlags_pktDropFromRA
sbco r1.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), SIZE(s_pktDescr.psFlags_errorFlags)
//pass through
l_stdHeldFirewallPktForward0_2:
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
ret
l_stdHeldFirewallPktForward1:
qbeq l_stdHeldFirewallPktForward3, s_matchForward.forwardType, PA_FORWARD_TYPE_DISCARD
fci_stdHeldFirewallPktForward2: // A jump in point for other functions to use
// the system error info
// Record Error and then pass through
l_stdHeldFirewallPktForward3:
// Free the packet Ext Info
#ifdef PASS_LAST_PDSP
ldi s_cdeCmd.v0, CDE_CMD_HPKT_DISCARD
//mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_DISCARD
set s_pktExtDescr.flags.fDropped
#else
ldi s_cdeCmd.v0, CDE_CMD_HPKT_RELEASE
//mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_RELEASE
//mov s_cdeCmdPkt.optionsFlag, 0
set s_pktExtDescr.flags.fDroppedInd
#endif
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, 4
ret
.leave pktScope
.leave lut1MatchScope
.leave lut1Scope
.leave cdeScope
// ******************************************************************************************************
// * FUNCTION PURPOSE: Forward a packet that failed a Firewall LUT1 search
// ******************************************************************************************************
// * DESCRIPTION: The packet is forwarded based on firewall default setting
// *
// * This function exits through a call to stdHeldFirewallPktForward, so
// * the forwarding information must be loaded as required in
// * structures s_matchForward, s_matchForward_host, etc
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2: scratch
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: -
// * R7: -
// * R8: -
// * R9: | |paAclCfg - - pktScope used
// * R10: | Error forward Info - lut1MatchSCope - for size and offset info
// * R11: | - - only
// * R12: | - -
// * R13: -
// * R14:
// * R15:
// * R16:
// * R17:
// * R18:
// * R19:
// * R20:
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-Error Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ******************************************************************************************************/
.using cdeScope
.using pktScope
.using lut1MatchScope
f_c1ForwardHeldFirewallPktNoMatch:
// Inc the no match stat
//mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_NO_MATCH
#ifdef PASS_OUTER_ACL
lbco s_paAclCfg, PAMEM_CONST_CUSTOM, OFFSET_OUT_IP_ACL_CFG, SIZE(s_paAclCfg)
#else
lbco s_paAclCfg, PAMEM_CONST_CUSTOM, OFFSET_IN_IP_ACL_CFG, SIZE(s_paAclCfg)
#endif
qbeq l_c1ForwardHeldFirewallPktNoMatch_1, s_paAclCfg.action, PA_FORWARD_TYPE_HOST
// Forwarding or discard
mov s_matchForward_pa.dest, PASS_FW_DEST_THREAD_ID
mov s_matchForward_pa.ctrlflags, 0
jmp fci_stdHeldFirewallPktForward
l_c1ForwardHeldFirewallPktNoMatch_1:
// Host Routing
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.destQueue, s_paAclCfg.destQueue
sbco s_paAclCfg.destQueue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
mov s_cdeCmdPkt.flowId, s_paAclCfg.destFlowId
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
ret
f_c1ForwardFirewallPktNoMatch:
// Inc the no match stat
//mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_NO_MATCH
#ifdef PASS_OUTER_ACL
lbco s_paAclCfg, PAMEM_CONST_CUSTOM, OFFSET_OUT_IP_ACL_CFG, SIZE(s_paAclCfg)
#else
lbco s_paAclCfg, PAMEM_CONST_CUSTOM, OFFSET_IN_IP_ACL_CFG, SIZE(s_paAclCfg)
#endif
qbeq l_c1ForwardFirewallPktNoMatch_2, s_paAclCfg.action, PA_FORWARD_TYPE_HOST
qbeq l_c1ForwardFirewallPktNoMatch_1, s_paAclCfg.action, PA_FORWARD_TYPE_PA
// Discard the packet
set s_pktExtDescr.flags.fDroppedInd
ldi r4, CDE_CMD_PACKET_ADVANCE
jmp fci_c1Parse14_1
l_c1ForwardFirewallPktNoMatch_1:
#ifdef PASS_RA_ERR_PKT
qbbs l_c1ForwardFirewallPktNoMatch_1_1, s_runCxt.flag2.t_raEn
#endif
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, PASS_FW_DEST_THREAD_ID
// Load flags and operation in one instruction
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
jmp fci_c1Parse14_1
#ifdef PASS_RA_ERR_PKT
l_c1ForwardFirewallPktNoMatch_1_1:
// Send the packet on its way to RA
qbbs l_c1ForwardFirewallPktNoMatch_1_set_ra_dest_1, s_runCxt.flag2.t_raUseLocDMA
// use global DMA
mov s_pktExtDescr.threadId, THREADID_CDMA0
mov s_cdeCmdPkt.destQueue, PASS_RA_QUEUE
jmp l_c1ForwardFirewallPktNoMatch_1_set_ra_dest_end
l_c1ForwardFirewallPktNoMatch_1_set_ra_dest_1:
// use local DMA
mov s_pktExtDescr.threadId, THREADID_CDMA1
mov s_cdeCmdPkt.destQueue, PASS_RA_LOC_QUEUE
// pass through
l_c1ForwardFirewallPktNoMatch_1_set_ra_dest_end:
// Free the packet Ext Info
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, 32
mov s_cdeCmdPkt.flowId, s_runCxt.raFlow
sbco s_cdeCmdPkt.destQueue, cCdeOutPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
jmp fci_c1Parse14_1
#endif
l_c1ForwardFirewallPktNoMatch_2:
// Host Routing
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
mov r4.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.destQueue, s_paAclCfg.destQueue
mov s_cdeCmdPkt.flowId, s_paAclCfg.destFlowId
sbco s_paAclCfg.destQueue, cCdeOutPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
jmp fci_c1Parse14_1
.leave cdeScope
.leave pktScope
.leave lut1MatchScope
#endif
// **************************************************************************************************
// * FUNCTION PURPOSE: Forward a packet that had a match in the LUT1 search
// **************************************************************************************************
// * DESCRIPTION: On entry r5 contains the LUT1 status, which indicated a match for the
// * held packet, and the match index value. The packet is forwarded as required.
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2:
// * R3:
// * R4:
// * R5: LUT1 Status (s_l1Status) / LUT1 Command (s_l1Cmd) - lut1Scope
// * R6: | packet capture info (L2 PDSP only)
// * R7: |
// * R8: LUT1 info (s_l1f) -
// * R9: | -
// * R10: | Forward match Info (valid at function exit) - lut1MatchSCope
// * R11: | -
// * R12: | -
// * R13:
// * R14: |
// * R15: | Extended Header Info
// * R16: |
// * R17: |
// * R18: |
// * R19: | usrStats FIFO CB
// * R20: | usrStats Request
// * R21:
// * R22:
// * R23:
// * R24:
// * R25:
// * R26:
// * R27:
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *
// **************************************************************************************************/
.using lut1Scope
.using lut1MatchScope
.using pktScope // Used only for sizing
#ifndef PASS_PROC_FIREWALL
f_c1ForwardHeldPacketMatch:
// Record the match
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_MATCH
// Load the routing info associated with LUT1
// This is the l1Info and match routing information
lsl r1.w0, s_l1Status.index, 6 // l1 index * 256
lbco &s_l1f, PAMEM_CONST_PDSP_LUT1_INFO, r1.w0, SIZE(s_l1f)+SIZE(s_fmPlace) // l1Info + routing info
// The following fields must be patched into the packet context with
// Results from the lookup
// // previous LUT1 match bit
// // custom C2 bit
// - LUT1 PDSP ID
// - LUT1 match index
// The 16 bit word s_pktCxt.phyLink will be created in r1.w0
// and then patched in
// The run context has the PDSP ID
//lsl s_pktCxt.phyLink, s_runCxt.pdspId, PKT_PDSP_ID_SHIFT
mov s_pktCxt.phyLink, PASS_PDSP_ID << PKT_PDSP_ID_SHIFT
// Or in the LUT1 matching index
or s_pktCxt.phyLink, s_pktCxt.phyLink, s_l1Status.index
// Set the bit to indicate a LUT1 match has occurred
set s_pktCxt.flags.t_flag_pl1Match
// Set the virtual link enable bit if necessary
qbbc l_c1ForwardHeldPacketMatch0, s_l1f.ctrlFlag.vlink_enable
set s_pktCxt.flags.t_flag_use_vlink
// Store virtual link num in s_pktCxt.vlanPri_vLink for further stages
and s_pktCxt.vlanPri_vLink.b1, s_pktCxt.vlanPri_vLink.b1, PKT_VALN_PRI_MASK
or s_pktCxt.vlanPri_vLink.b1, s_pktCxt.vlanPri_vLink.b1, s_l1fv.vLinkNum.b1
mov s_pktCxt.vlanPri_vLink.b0, s_l1fv.vLinkNum.b0
sbco s_pktCxt.vlanPri_vLink, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.vlanPri_vLink), SIZE(s_pktCxt.vlanPri_vLink)
l_c1ForwardHeldPacketMatch0:
// The pmatch, c2c, pdsp ID and LUT1 index are patched into psinfo
sbco s_pktCxt.flags, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.flags), SIZE(s_pktCxt.flags)
sbco s_pktCxt.phyLink, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.phyLink), SIZE(s_pktCxt.phyLink)
#endif
// jmp stdPktForward - save the cycle and just fall through
.leave pktScope
.leave lut1MatchScope
.leave lut1Scope
// ******************************************************************************************************
// * FUNCTION PURPOSE: Standard routing of a held packet
// ******************************************************************************************************
// * DESCRIPTION: A held packet is routed
// * On Entry r9-r12 contains the forwarding information
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2: scratch (r2.b0: psInfoSize)
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: | packet capture info (L2 PDSP only)
// * R7: |
// * R8: LUT1 info (s_l1f) -
// * R9: | -
// * R10: | Forward match Info (valid at function exit) - lut1MatchSCope
// * R11: | - Must be valid on Entry
// * R12: | -
// * R13:
// * R14: |
// * R15: | Extended Header Info
// * R16: |
// * R17: |
// * R18: |
// * R19: | usrStats FIFO CB
// * R20: | usrStats Request
// * R21:
// * R22:
// * R23:
// * R24:
// * R25:
// * R26:
// * R27:
// * R28: event (INTD) enabled mask register (s_eventFlags) -
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *
// ******************************************************************************************************
.using lut1MatchScope
.using cdeScope
.using pktScope
.using usrStatsFifoScope
f_stdHeldPktForward:
// Record the effective packet size for user statistics update
// It will casue 3 cycles for all forwarding packets regardless of statistics update or not
// lbco s_usrStatsReq.pktSize, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.endOffset), SIZE(s_pktCxt.endOffset)
mov s_usrStatsReq.pktSize, s_pktCxt.endOffset
// Load control flags
// Note that it should be loaded only once to prevent infinite re-entry for fragments routing (already loaded)
// lbco s_pktCxt.flags, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.flags), SIZE(s_pktCxt.flags)
fci_stdHeldPktForward_retry:
// Default thread Id for command set is THREADID_POST
// The value will be changed to PA_DEST_CDMA only if QoS routing is required
// The packet will be routed to QoS queues and then maybe forwarded to Q645 where command set can be executed
mov r2.b2, THREADID_POST
// Do not release the packet ID if the packet remains in PA
qbne l_stdHeldPktForward1, s_matchForward.forwardType, PA_FORWARD_TYPE_PA
//
// IP Fragemnt packet can not be forwarded within PA
//
qbbs l_stdHeldPktForward11, s_pktCxt.flags.t_flag_frag
// L1 Info handling
qbbc l_stdHeldPktForward0_1, s_l1f.ctrlFlag.custom_enable
// Patch the startOffset and nextHdr
sbco s_l1f.nextHdrOffset, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.startOffset), SIZE(s_pktCxt.startOffset)
//lbco r1.w0, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), 2
and s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, NOT_PKT_NEXTHDR_MASK
or s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, s_l1f.nextHdr
sbco s_pktCxt.eId_portNum_nextHdr, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), 2
l_stdHeldPktForward0_1:
// Custom Routing handling
qbeq l_stdHeldPktForward0_4, s_matchForward_pa.custType, PA_CUSTOM_TYPE_NONE
// Patch the pktContext
// eIndex should stote the custom Index
// Patch the next header Type
//lbco r1.w0, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), 2
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
lsl r1.b2, s_matchForward_pa.custIdx, PKT_EIDX_SHIFT
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, r1.b2
and s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, NOT_PKT_NEXTHDR_MASK
qbeq l_stdHeldPktForward0_2, s_matchForward_pa.custType, PA_CUSTOM_TYPE_LUT1
or s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, PA_HDR_CUSTOM_C2
jmp l_stdHeldPktForward0_3
l_stdHeldPktForward0_2:
or s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, PA_HDR_CUSTOM_C1
l_stdHeldPktForward0_3:
sbco s_pktCxt.eId_portNum_nextHdr, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), 2
l_stdHeldPktForward0_4:
// Free the packet Ext Info
#ifndef PASS_LAST_PDSP
#ifndef PASS_FIREWALL_FORWARDING
qbne l_stdHeldPktForward0_4_1, s_matchForward_pa.dest, PASS_THREAD_ID
#else
// Custom packet does not go through Firewall or RA engine
qbne l_stdHeldPktForward0_4_1, s_matchForward_pa.custType, PA_CUSTOM_TYPE_NONE
#endif
// Need to process this packet at the next PDSP
lbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
clr r1.w0.t_pktBypass
sbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
#endif
l_stdHeldPktForward0_4_1:
// Verify various control flags
qbbc l_stdHeldPktForward0_5, s_matchForward_pa.ctrlflags.t_pa_cascaded_forwarding
// update the pktCtx.flag2
set s_pktCxt.flags.t_flag_cascaded_forwarding
sbco s_pktCxt.flags, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt.flags), SIZE(s_pktCxt.flags)
// pass through
l_stdHeldPktForward0_5:
#ifdef PASS_PROC_PA_ROUTE_L2_CAPTURE
qbbc l_stdHeldPktForward0_5_l2_cap_end, s_matchForward_pa.ctrlflags.t_pa_l2_capture
// prepare packet for L2 capture at the next stage
// Patch swinfo0, queue and flow Id
sbco s_matchForward_pa.context, cCdeHeldPkt, OFFSET(s_pktDescr.swinfo0), 4
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
sbco s_matchForward.flowId, cCdeHeldPkt, OFFSET(s_pktDescr.flowIdx), SIZE(s_pktDescr.flowIdx)
// Need to capture this packet at the next PDSP
lbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
set r1.w0.t_pktCapture
sbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
l_stdHeldPktForward0_5_l2_cap_end:
#endif
mov s_pktExtDescr.threadId, s_matchForward_pa.dest
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// Load flags and operation in one instruction
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
//mov s_cdeCmdPkt.threadId, s_matchForward_pa.dest
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
//Is there user-stats update command
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward1:
// Forwarding packets to the host
qbne l_stdHeldPktForward3, s_matchForward.forwardType, PA_FORWARD_TYPE_HOST
//lbco r1.b0, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt5.l3l5offset), 1
qbeq l_stdHeldPktForward1_00, s_pktCxt5.l3l5offset, 0
sbco s_pktCxt5.l3l5offset, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt5.l3offset2), 1
l_stdHeldPktForward1_00:
//
// Perform IP Fragemnt packet check if configured and it is not cascaded forwarding packet
//
qbbs l_stdHeldPktForward1_0, s_pktCxt.flags.t_flag_cascaded_forwarding
qbbc l_stdHeldPktForward1_0, s_runCxt.flag2.t_ipFragToEroute
qbbs l_stdHeldPktForward11, s_pktCxt.flags.t_flag_frag
// pass through
l_stdHeldPktForward1_0:
// Patch swinfo0
sbco s_matchForward_host.context, cCdeHeldPkt, OFFSET(s_pktDescr.swinfo0), 4
// Patch the psflags only if non-zero
qbeq l_stdHeldPktForward1_1, s_matchForward_host.psflags, 0
lbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_PS_FLAGS_MASK
and r0.b0, s_matchForward_host.psflags, PAFRM_ETH_PS_FLAGS_CTRL_MASK
or r2.b0, r2.b0, r0.b0
sbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
// Set EMAC output port
and r0.b0, s_matchForward_host.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sbco r0.b0, cCdeHeldPkt, OFFSET(s_pktDescrCpsw.outPort), 1
// TBD: Clear TimeSync word (Should we clear time stamp
l_stdHeldPktForward1_1:
// The first 2 32-bit word in the pkt context may be examized and patched
// For multi routing: Set flag and the multi route index, update Command ID
// For command set command: Set flag and command set index, update Command ID
// For CRC verification: Check the flag and update Command ID
// Both words are read in, changed, and sent out at once
//lbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 8
// Check whether interface based routing is enabled or not
qbbc l_stdHeldPktForward1_no_if_changes, s_matchForward_host.ctrlBitmap.t_pa_routing_if_selection
lsr r2.b1, s_pktCxt.eId_portNum_nextHdr, PKT_EMACPORT_SHIFT
and r2.b1, r2.b1, PKT_EMACPORT_MASK
// There is no need to update destion queue and flow if interfcae is unknown
qbeq l_stdHeldPktForward1_no_priority, r2.b1, 0
sub r2.b1, r2.b1, 1
qbbc l_stdHeldPktForward1_no_eqos_changes, s_matchForward_host.ctrlBitmap.t_pa_routing_if_eqos
// load per port configuration from the scratch memory
// get the port number to be captured and obtain the offset
// point to per port configuration structure
// Extract output port number
// r0.w2: Ingress port base to extract default priority only
// r1.b0: port ctrlBitMap (queue offset)
// r1.b1: priority (flow offset)
// r1.w2: Egress port base (control and Offset table)
and r2.b3, s_matchForward_host.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sub r2.b3, r2.b3, 1
mov r1.w0, OFFSET_EQOS_CFG_BASE
lsl r1.w2, r2.b3, 8
add r1.w2, r1.w2, r1.w0
lsl r0.w2, r2.b1, 8
add r0.w2, r0.w2, r1.w0
// load the port control and other information
lbco r1.b0, PAMEM_CONST_PORTCFG, r1.w2, 1
// point to vlan priority table offset
add r1.w2, r1.w2, 8
// Ingress port Byte4: default priority port
add r0.w2, r0.w2, 4
lbco r1.b1, PAMEM_CONST_PORTCFG, r0.w2, 1
// check mode, whether DSCP mode or DP-BIT mode
qbbc l_stdHeldPktForward1DscpEqosMode, r1.b0.t_eqos_dp_bit_mode
// dp bit mode
and r0.b0, s_pktCxt.protCount, PROT_COUNT_VLAN_MASK << PROT_COUNT_VLAN_SHIFT
qbeq l_stdHeldPktForward1NotVlanTag, r0.b0, 0
lsr r1.b1, s_pktCxt.vlanPri_vLink.b1, PKT_VLAN_PRI_SHIFT
jmp l_stdHeldPktForward1_comp
l_stdHeldPktForward1NotVlanTag:
qbbs l_stdHeldPktForward1_comp, r1.b0.t_eqos_pri_override
l_stdHeldPktForward1DscpEqosMode:
#ifndef PASS_PROC_L2
and r0.b0, s_pktCxt.protCount, PROT_COUNT_IP_MASK << PROT_COUNT_IP_SHIFT
qbeq l_stdHeldPktForward1_comp, r0.b0, 0
#else
and r0.b0, s_pktCxt.eId_portNum_nextHdr.b0, PKT_NEXTHDR_MASK
qbeq l_stdHeldPktForward1ProcDscp, r0.b0, PA_HDR_IPv4
qbne l_stdHeldPktForward1_comp, r0.b0, PA_HDR_IPv6
l_stdHeldPktForward1ProcDscp:
#endif
// point to dscp table
add r1.w2, r1.w2, 16
mov r1.b1, s_pktCxt.priority
// pass through
l_stdHeldPktForward1_comp:
//point to correct priority table offset
lsl r1.b1, r1.b1, 1
add r1.w2, r1.w2, r1.b1
lbco r1.w0, PAMEM_CONST_PORTCFG, r1.w2, 2
// add to base queue and flow
add s_matchForward.flowId, s_matchForward.flowId, r1.b1
add s_matchForward.queue, s_matchForward.queue, r1.b0
mov r2.b2, PA_DEST_CDMA
jmp l_stdHeldPktForward1_no_priority
l_stdHeldPktForward1_no_eqos_changes:
add s_matchForward.queue, s_matchForward.queue, r2.b1
qbbc l_stdHeldPktForward1_no_priority, s_matchForward_host.ctrlBitmap.t_pa_routing_if_dest_flow
// Now update the destination flow based on the ethernet interface
add s_matchForward.flowId, s_matchForward.flowId, r2.b1
jmp l_stdHeldPktForward1_no_priority
l_stdHeldPktForward1_no_if_changes:
// Verify whether priority-based routing is enabled
qbbc l_stdHeldPktForward1_dscp_priority, s_matchForward_host.ctrlBitMap.t_pa_routing_priority_vlan
l_stdHeldPktForward1_vlan_priority:
//lbco r2.b0, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt.vlanPri_vLink), 1
lsr r2.b0, s_pktCxt.vlanPri_vLink, PKT_VLAN_PRI_SHIFT
add s_matchForward.queue, s_matchForward.queue, r2.b0
mov r2.b2, THREADID_CDMA0
l_stdHeldPktForward1_dscp_priority:
// No priority routing enabled
qbbc l_stdHeldPktForward1_no_priority, s_matchForward_host.ctrlBitMap.t_pa_routing_priority_dscp
//lbco r2.b0, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt.priority), 1
add s_matchForward.queue, s_matchForward.queue, s_pktCxt.priority
mov r2.b2, THREADID_CDMA0
l_stdHeldPktForward1_no_priority:
// Note CRC verification is only required by the SCTP header
// The destination must be host and there should be neither multi-route nor command set
mov r2.b0, SIZE(s_pktCxt) + 8
mov s_pktExtDescr.threadId, THREADID_CDMA0
// check whether the CRC verification is enabled, which precedes all other special case
qbbc l_stdHeldPktForward1_2, s_pktCxt.flags.t_flag_crc_verify
#ifndef PASS_LAST_PDSP
// Need to process this packet at the next PDSP
lbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
clr r1.w0.t_pktBypass
sbco r1.w0, cCdeHeldPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
#endif
jmp l_stdHeldPktForward10
l_stdHeldPktForward1_2:
l_stdHeldPktForward1_3:
// Check whether command set is enabled, which precedes the multi-route option
qbeq l_stdHeldPktForward9, s_matchRxCmdHdr.cmd, PA_RX_CMD_CMDSET
qbeq l_stdHeldPktForward9, s_matchRxCmdHdr.cmd, PA_RX_CMD_CMDSET_USR_STATS
qbbs l_stdHeldPktForward2, s_matchForward_host.ctrlBitMap.t_pa_multiroute
// Normal host route: no special operation is required
// Send the packet on its way
// Free the packet Ext Info
//mov s_pktExtDescr.threadId, THREADID_CDMA0
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
mov r4.w0, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
//mov s_cdeCmdPkt.threadId, PA_DEST_CDMA
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.destQueue, s_matchForward.queue
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
mov s_cdeCmdPkt.flowId, s_matchForward.flowId
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward2:
// For multi routing the command ID and the multi route index
// must be patched into the packet. These are two bytes which span 2 32 bits words.
// Both words are read in, changed, and sent out at once
// Note: It can be skipped since the original commad is 0
//and s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, NOT_PKT_CONTEXT_CMD_MASK
or s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, PSH_CMD_RX_FWD << PKT_CONTEXT_CMD_SHIFT
set s_pktCxt.flags.t_flag_multi_route
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
lsl r3.b0, s_matchForward_host.multiIdx, PKT_EIDX_SHIFT
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, r3.b0
sbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 8
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_POST
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.threadId, s_matchForward_host.paPdspRouter
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward3:
and r2.b0, s_matchForward.forwardType, PA_FORWARD_TYPE_MASK
qbne l_stdHeldPktForward3_1, r2.b0, PA_FORWARD_TYPE_SA
// Record ThreadId
qbbs l_stdHeldPktForward3_set_threadId_1, s_matchForward.forwardType.t_pa_fwd_type_ctrl_use_loc_dma
mov s_pktExtDescr.threadId, THREADID_CDMA0
jmp l_stdHeldPktForward3_2
l_stdHeldPktForward3_set_threadId_1:
mov s_pktExtDescr.threadId, THREADID_CDMA1
jmp l_stdHeldPktForward3_2
l_stdHeldPktForward3_1:
qbne l_stdHeldPktForward4, r2.b0, PA_FORWARD_TYPE_SA_DIRECT
mov s_pktExtDescr.threadId, s_matchForward.flowId
l_stdHeldPktForward3_2:
//
// IP Fragemnt packet can not be forwarded to SA
//
qbbs l_stdHeldPktForward11, s_pktCxt.flags.t_flag_frag
// Routing to SA
// Patch swinfo0 and swinfo2
sbco s_matchForward_sa.swInfo0, cCdeHeldPkt, OFFSET(s_pktDescr.swinfo0), 8
// Check whether command set is enabled, which precedes the multi-route option
qbeq l_stdHeldPktForward9, s_matchRxCmdHdr.cmd, PA_RX_CMD_CMDSET
qbeq l_stdHeldPktForward9, s_matchRxCmdHdr.cmd, PA_RX_CMD_CMDSET_USR_STATS
// Send the packet on its way
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.threadId, PA_DEST_CDMA
//mov s_cdeCmdPkt.destQueue, s_matchForward.queue
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
mov s_cdeCmdPkt.flowId, s_matchForward.flowId
xout XID_CDECTRL, s_cdeCmdPkt, SIZE( s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward4:
qbne l_stdHeldPktForward5, s_matchForward.forwardType, PA_FORWARD_TYPE_SRIO
// Routing to SRIO
// Overwrite Packet Info with psinfo0 and psinfo2
sbco s_matchForward_srio.psInfo0, cCdeHeldPkt, SIZE(s_pktDescr), 8
// Patch the packet type
lbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.pktType_pvtFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_TYPE_MASK
lsl r2.b1, s_matchForward_srio.pktType, PA_PKT_TYPE_SHIFT
or r2.b0, r2.b0, r2.b1
sbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.pktType_pvtFlags), 1
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, 8 // SRIO take 8 bytes Ps Info
//mov s_cdeCmdPkt.threadId, PA_DEST_CDMA
//mov s_cdeCmdPkt.destQueue, s_matchForward.queue
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
mov s_cdeCmdPkt.flowId, s_matchForward.flowId
xout XID_CDECTRL, s_cdeCmdPkt, SIZE( s_cdeCmdPkt)
ret
l_stdHeldPktForward5:
qbne l_stdHeldPktForward6, s_matchForward.forwardType, PA_FORWARD_TYPE_ETH
// Routing to ETH
// Clear psflags
lbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_PS_FLAGS_MASK
and r0.b0, s_matchForward_eth.psflags, PAFRM_ETH_PS_FLAGS_CTRL_MASK
or r2.b0, r2.b0, r0.b0
sbco r2.b0, cCdeHeldPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
// Set EMAC output port
and r0.b0, s_matchForward_eth.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sbco r0.b0, cCdeHeldPkt, OFFSET(s_pktDescrCpsw.outPort), 1
// Clear TimeSync word
mov r0, 0
sbco r0, cCdeHeldPkt, OFFSET(s_pktDescrCpsw.tsWord), 4
// Send the packet on its way
// Free the packet Ext Info
add s_pktExtDescr.threadId, s_matchForward_eth.priority, THREADID_ETHERNET1
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, 0 // remove pktCtx
//mov s_cdeCmdPkt.threadId, PA_DEST_ETH
xout XID_CDECTRL, s_cdeCmdPkt, SIZE( s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward6:
#ifdef PASS_PROC_EFLOW_ROUTE
// Only Egress flow is supported
qbne l_stdHeldPktForward7, s_matchForward.forwardType, PA_FORWARD_TYPE_EFLOW
// TBD: may want to add more error check
// TBD: other cleanup?
//mviw *&s_txPktCxt.paCmdId_Length, PSH_CMD_PA_TX_FLOW << (PKT_CONTEXT_CMD_SHIFT + 8)
mov s_txPktCxt.paCmdId_Length, PSH_CMD_PA_TX_FLOW << PKT_CONTEXT_CMD_SHIFT
mov s_txPktCxt.flags.b1, 0
qbbc l_stdHeldPktForward6_1, s_matchForward_ef.ctrlflags.t_pa_ef_ctrlflags_fc_lookup
set s_txPktCxt.flags.t_flag_fc_lookup
// pass through
l_stdHeldPktForward6_1:
and r0.b0, s_pktCxt.eId_portNum_nextHdr.b0, PKT_NEXTHDR_MASK
lsl s_txPktCxt.flags.b0, s_matchForward_ef.validBitMap, 4
mvid *&s_txPktCxt.lvl1RecIndex, *&s_matchForward_ef.lvl1RecIndex
mov s_txPktCxt.l2Offset, 0
#ifdef PASS_PROC_L2
// end of L2 processing
// MAC-Routing only
mov s_pktExtDescr.threadId, THREADID_EGRESS2
mov s_txPktCxt.l3Offset, s_pktCxt.startOffset
mov s_txPktCxt.ipHdrLen, 0
sub s_txPktCxt.fragSize, s_pktCxt.endOffset, s_pktCxt.startOffset
mov s_txPktCxt.lastFragSize, s_txPktCxt.fragSize
sbco s_txPktCxt, cCdeHeldPkt, SIZE(s_pktDescr), SIZE(s_txPktCxt)
#endif
#ifdef PASS_PROC_OUTER_IP
// end of Outer IP processing
mov s_pktExtDescr.threadId, THREADID_EGRESS0
#ifdef PASS_DETECT_INNER_IP
qbeq l_stdHeldPktForward6_outer_ip_1, r0.b0, PA_HDR_IPv4
qbeq l_stdHeldPktForward6_outer_ip_1, r0.b0, PA_HDR_IPv6
// Single IP
mov s_txPktCxt.l3Offset2, s_txPktCxt.l3Offset
jmp l_stdHeldPktForward6_outer_ip_2
l_stdHeldPktForward6_outer_ip_1:
// with inner IP
mov s_txPktCxt.l3Offset2, s_txPktCxt.startOffset
#else
// Assume there is no inner IP at the outer IP processing stage
// In other words, the potential inner IP is ignored if IP forwarding occurs at this stage
mov s_txPktCxt.l3Offset2, s_txPktCxt.l3Offset
#endif
l_stdHeldPktForward6_outer_ip_2:
sbco s_txPktCxt, cCdeHeldPkt, SIZE(s_pktDescr), OFFSET(s_txPktCxt.fragSize)
#endif
#ifdef PASS_PROC_INNER_IP
// end of Inner IP processing
mov s_pktExtDescr.threadId, THREADID_EGRESS0
mov s_txPktCxt.l3Offset2, s_txPktCxt.l3Offset
qbeq l_stdHeldPktForward6_inner_ip_end, s_pktCxt5.l3l5Offset, 0
mov s_txPktCxt.l3Offset2, s_pktCxt5.l3l5Offset
mov s_txPktCxt.l4Offset, s_pktCxt.startOffset
l_stdHeldPktForward6_inner_ip_end:
sbco s_txPktCxt, cCdeHeldPkt, SIZE(s_pktDescr), OFFSET(s_txPktCxt.fragSize)
#endif
// Send the packet on its way
// Free the packet Ext Info
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_txPktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
xout XID_CDECTRL, s_cdeCmdPkt, SIZE( s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
#endif
l_stdHeldPktForward7:
qbeq l_stdHeldPktForward8, s_matchForward.forwardType, PA_FORWARD_TYPE_DISCARD
fci_stdHeldPktForward7: // A jump in point for other functions to use
// the system error info
// Record Error and then pass through
l_stdHeldPktForward8:
// Do a silent discard, release the packet
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_DISCARD
// Free the packet Ext Info
set s_pktExtDescr.flags.fDroppedInd
#ifdef PASS_LAST_PDSP
//mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_DISCARD
ldi s_cdeCmd.v0, CDE_CMD_HPKT_DISCARD
set s_pktExtDescr.flags.fDropped
#else
ldi s_cdeCmd.v0, CDE_CMD_HPKT_RELEASE
//mov s_cdeCmdPkt.operation, CDE_CMD_HPKT_RELEASE
//mov s_cdeCmdPkt.optionsFlag, 0
#endif
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, 4
//Is there user-stats update command
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_stdHeldPktForward9:
// For command set command, the command ID and the command set index
// must be patched into the packet. These are two bytes which span 2 32 bits words.
// Both words are read in, changed, and sent out at once
set s_pktCxt.flags.t_flag_cmdset
qbne l_stdHeldPktForward9_0, r2.b2, THREADID_CDMA0
// during QoS the destination would have been modified to CDMA0, indicate it in reserved bit 14,
// for egress PDSPs to handle when it gets from QoS.
set s_pktCxt.flags.t_flag_eg_cmdSet
l_stdHeldPktForward9_0:
sbco s_matchRxCmdSet.index, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt4.cmdSetIdx), SIZE(s_pktCxt4.cmdSetIdx)
mov r2.b0, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
// record the original threadId
sbco s_pktExtDescr.threadId, cCdeHeldPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt4.threadIdOrig), SIZE(s_pktCxt4.threadIdOrig)
l_stdHeldPktForward10:
// Share operation by both command set and CRC verification
// Note: It can be skipped since the original commad is 0
// and s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, NOT_PKT_CONTEXT_CMD_MASK
or s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, PSH_CMD_RX_FWD << PKT_CONTEXT_CMD_SHIFT
sbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 8
// patch the flow Id and queue Id
sbco s_matchForward.flowId, cCdeHeldPkt, OFFSET(s_pktDescr.flowIdx), SIZE(s_pktDescr.flowIdx)
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, r2.b2
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
//mov s_cdeCmdPkt.threadId, PA_DEST_PA_M_0
mov s_cdeCmdPkt.psInfoSize, r2.b0
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_stdHeldPktForward12, s_matchRxCmdHdr.cmd, PA_RX_CMD_CMDSET_USR_STATS
ret
l_stdHeldPktForward11:
// IP fragmented packet
// Follow the exception route
// Note: It is up to the user to set the exception route correctly
// Note: clear local copy to prevent infinite re-entry
clr s_pktCxt.flags.t_flag_frag
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, EROUTE_IP_FRAG << PKT_EIDX_SHIFT
sbco s_pktCxt.eId_portNum_nextHdr, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), SIZE(s_pktCxt.eId_portNum_nextHdr)
mov r1.w0, EROUTE_IP_FRAG*SIZE(s_fmPlace)
lbco s_fmPlace, PAMEM_CONST_EROUTE, r1.w0, SIZE(s_fmPlace)
jmp fci_stdHeldPktForward_retry
l_stdHeldPktForward12:
// User Statistics operation:
// Record and insert the statistics update into the FIFO
// Note all user commands are in the same location (r12)
mov s_usrStatsReq.index, s_matchForward_host.cmd.w0
lbco s_fifoCb, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB, SIZE(s_fifoCb)
add r1.b0, s_fifoCb.in, 4
and r1.b0, r1.b0, 0x1F
qbne l_stdHeldPktForward12_1, s_fifoCb.out, r1.b0
// FIFO is full, bump the system error
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_SYSTEM_FAIL
ret
l_stdHeldPktForward12_1:
// Insert the request into the FIFO
add r1.w2, s_fifoCb.in, OFFSET_PDSP_USR_STATS_FIFO
sbco s_usrStatsReq, PAMEM_CONST_USR_STATS_FIFO_BASE, r1.w2, SIZE(s_usrStatsReq)
sbco r1.b0, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB + OFFSET(s_fifoCb.in), SIZE(s_fifoCb.in)
ret
.leave pktScope
.leave cdeScope
.leave lut1MatchScope
.leave usrStatsFifoScope
// ******************************************************************************************************
// * FUNCTION PURPOSE: Standard routing of the current packet
// ******************************************************************************************************
// * DESCRIPTION: The current packet is routed
// *
// * The only time a current packet is routed is if there is an error.
// * the exception index is supplied in r30.w2, and the packet is forwarded based on
// * that index.
// *
// * s_pktCxt.scratch contains the packet ID
// *
// * Register Usage:
// *
// * R0:
// * R1:
// * R2:
// * R3: | discard stat mask for classify1
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: | Forwarding info
// * R8: |
// * R9: |
// * R10:
// * R11:
// * R12:
// * R13:
// * R14:
// * R15:
// * R16:
// * R17:
// * R18:
// * R19:
// * R20:
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-Exception Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ******************************************************************************************************
.using currentFwdScope
f_errCurrentPktForward:
// Load the error routing information
lsl r30.w2, r30.w2, 4
lbco s_curFmPlace, PAMEM_CONST_EROUTE, r30.w2, SIZE(s_curFmPlace)
// Need a return address
mov r30.w0, fci_c1Parse14_1
jmp f_c1CurPktForward
.leave currentFwdScope
#ifndef PASS_PROC_FIREWALL
// ******************************************************************************************************
// * FUNCTION PURPOSE: Standard routing of the current packet
// ******************************************************************************************************
// * DESCRIPTION: The current packet is routed
// *
// * The only time a current packet is routed is if there is an error.
// * the exception index is supplied in r30.w2, and the packet is forwarded based on
// * that index.
// *
// * s_pktCxt.scratch contains the packet ID
// *
// * Register Usage:
// *
// * R0:
// * R1:
// * R2:
// * R3: | discard stat mask for classify1
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: | Forwarding info
// * R8: |
// * R9: |
// * R10:
// * R11:
// * R12:
// * R13:
// * R14: | Extended Packet Info
// * R15: |
// * R16: |
// * R17: |
// * R18: |
// * R19:
// * R20:
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-Exception Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ******************************************************************************************************
.using cdeScope
.using pktScope
.using lut1MatchScope
.using currentFwdScope
f_nextFailPktForward:
// Inc the no match stat
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_NO_MATCH
mov r30.w0, fci_c1Parse14_1
// Broadcast and multicast check if no match found
// Assume that this rule precedes the pre-match rule
l_nextFailPktForward_BM_1:
qbbc l_nextFailPktForward_BM_2, s_pktCxt.flags.t_flag_multicast
mov r1.w0, EROUTE_IP_MULTICAST*SIZE(s_curFmPlace)
jmp l_nextFailPktForward_BM_3
l_nextFailPktForward_BM_2:
qbbc l_nextFailPktForward_BM_4, s_pktCxt.flags.t_flag_broadcast
mov r1.w0, EROUTE_IP_BROADCAST*SIZE(s_curFmPlace)
//pass through
l_nextFailPktForward_BM_3:
// Load the routing information for broadcast/multicast type into the
// matchforward context
lbco s_curFmPlace, PAMEM_CONST_EROUTE, r1.w0, SIZE(s_curFmPlace)
qbeq l_nextFailPktForward_BM_4, s_curFwd.forwardType, PA_FORWARD_TYPE_DISCARD
jmp f_c1CurPktForward
l_nextFailPktForward_BM_4:
qbbs l_nextFailPktForward0, s_pktCxt.flags.t_flag_pl1Match
// For no previous match set the error type in the packet, load the
// error routing information and route
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, EROUTE_LUT1_FAIL << PKT_EIDX_SHIFT
//sbco s_pktCxt.eId_portNum_nextHdr, cCdeOutPkt, SIZE(s_pktDescr)+OFFSET(eId_portNum_nextHdr), 2
// Load the routing information for LUT1 fail error type into the
// matchforward context
lbco s_curFmPlace, PAMEM_CONST_EROUTE, EROUTE_LUT1_FAIL << 4, SIZE(s_curFmPlace)
jmp f_c1CurPktForward
l_nextFailPktForward0:
// In the case of a previous match, the previous match routing information
// must be loaded into the matchForward context
lsr r1.b2, s_pktCxt.phyLink, PKT_PDSP_ID_SHIFT // Get PDSP ID
mov r1.w0, s_pktCxt.phyLink
and r1.b1, r1.b1, PKT_L1IDX_MASK
lsl r1.w0, r1.w0, 6 // get the associated table offset
lsl r1.b2, r1.b2, 2 // PDSP ID * 4 = offset to the nextFail table base address
lbco r2, PAMEM_CONST_NFAIL_BASE, r1.b2, 4
//Load the nextfail routing information
lbbo s_curFmPlace, r2, r1.w0, SIZE(s_curFmPlace)
jmp f_c1CurPktForward
.leave cdeScope
.leave pktScope
.leave lut1MatchScope
.leave currentFwdScope
#endif
// *********************************************************************************************
// * FUNCTION PURPOSE: C1 Current packet forwarding
// *********************************************************************************************
// * DESCRIPTION: The current packet is forwarded based on the forward information
// * input for exception and nextFail route only
// * On Entry:
// * R6-R9 has the forward match structure
// * R14-R18 extPktInfo
// *
// *
// * Register Usage:
// *
// * R0: scratch
// * R1: scratch
// * R2: scratch
// * R3: | bit mask for stat to update on silent discard
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: | Current Packet Forwarding info
// * R8: |
// * R9: |
// * R10:
// * R11:
// * R12:
// * R13: -
// * R14: |extPacketInfo
// * R15: |
// * R16: |
// * R17: |
// * R18: |
// * R19: | Usr statistics
// * R20: |
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27:
// * R28:
// * R29: c1RunContext (s_runCxt) rsvd for C1, C2 and P - Global Scope
// * R30: w2-Error Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ********************************************************************************************
.using currentFwdScope
.using pktScope
.using cdeScope
.using usrStatsFifoScope
f_c1CurPktForward:
// Record the effective packet size for user statistics update
mov s_usrStatsReq.pktSize, s_pktCxt.endOffset
// Default thread Id for command set is THREADID_POST
// The value will be changed to PA_DEST_CDMA only if QoS routing is required
// The packet will be routed to QoS queues and then maybe forwarded to Q645 where command set can be executed
mov r2.b2, THREADID_POST
// Update the current packet Info
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
// Forwarding packets to the host
qbne l_c1CurPktForward3, s_curFwd.forwardType, PA_FORWARD_TYPE_HOST
// Patch swinfo0
sbco s_curFwd_host.context, cCdeOutPkt, OFFSET(s_pktDescr.swinfo0), 4
// Patch the psflags only if non-zero
qbeq l_c1CurPktForward1_0, s_curFwd_host.psflags, 0
lbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_PS_FLAGS_MASK
and r0.b0, s_curFwd_host.psflags, PAFRM_ETH_PS_FLAGS_CTRL_MASK
or r2.b0, r2.b0, r0.b0
sbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
// Set EMAC output port
and r0.b0, s_curFwd_host.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sbco r0.b0, cCdeOutPkt, OFFSET(s_pktDescrCpsw.outPort), 1
// TBD: Clear TimeSync word
l_c1CurPktForward1_0:
// Check whether interface based routing is enabled or not
qbbc l_c1CurPktForward1_no_if_changes, s_curFwd_host.ctrlBitmap.t_pa_routing_if_selection
lsr r2.b1, s_pktCxt.eId_portNum_nextHdr, PKT_EMACPORT_SHIFT
and r2.b1, r2.b1, PKT_EMACPORT_MASK
// There is no need to update destion queue and flow if interfcae is unknown
qbeq l_c1CurPktForward1_no_priority, r2.b1, 0
sub r2.b1, r2.b1, 1
qbbc l_c1CurPktForward1_no_eqos_changes, s_curFwd_host.ctrlBitmap.t_pa_routing_if_eqos
// load per port configuration from the scratch memory
// get the port number to be captured and obtain the offset
// point to per port configuration structure
// Extract output port number
// r0.w2: Ingress port base to extract default priority only
// r1.b0: port ctrlBitMap (queue offset)
// r1.b1: priority (flow offset)
// r1.w2: Egress port base (control and Offset table)
and r2.b3, s_curFwd_host.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sub r2.b3, r2.b3, 1
mov r1.w0, OFFSET_EQOS_CFG_BASE
lsl r1.w2, r2.b3, 8
add r1.w2, r1.w2, r1.w0
lsl r0.w2, r2.b1, 8
add r0.w2, r0.w2, r1.w0
// load the port control and other information
lbco r1.b0, PAMEM_CONST_PORTCFG, r1.w2, 1
// point to vlan priority table offset
add r1.w2, r1.w2, 8
// Ingress port Byte4: default priority port
add r0.w2, r0.w2, 4
lbco r1.b1, PAMEM_CONST_PORTCFG, r0.w2, 1
// check mode, whether DSCP mode or DP-BIT mode
qbbc l_c1CurPktForward1DscpEqosMode, r1.b0.t_eqos_dp_bit_mode
// dp bit mode
and r0.b0, s_pktCxt.protCount, PROT_COUNT_VLAN_MASK << PROT_COUNT_VLAN_SHIFT
qbeq l_c1CurPktForward1NotVlanTag, r0.b0, 0
lsr r1.b1, s_pktCxt.vlanPri_vLink.b1, PKT_VLAN_PRI_SHIFT
jmp l_c1CurPktForward1_comp
l_c1CurPktForward1NotVlanTag:
qbbs l_c1CurPktForward1_comp, r1.b0.t_eqos_pri_override
l_c1CurPktForward1DscpEqosMode:
#ifndef PASS_PROC_L2
and r0.b0, s_pktCxt.protCount, PROT_COUNT_IP_MASK << PROT_COUNT_IP_SHIFT
qbeq l_c1CurPktForward1_comp, r0.b0, 0
#else
and r0.b0, s_pktCxt.eId_portNum_nextHdr.b0, PKT_NEXTHDR_MASK
qbeq l_c1CurPktForward1ProcDscp, r0.b0, PA_HDR_IPv4
qbne l_c1CurPktForward1_comp, r0.b0, PA_HDR_IPv6
l_c1CurPktForward1ProcDscp:
#endif
// point to dscp table
add r1.w2, r1.w2, 16
mov r1.b1, s_pktCxt.priority
// pass through
l_c1CurPktForward1_comp:
//point to correct priority table offset
lsl r1.b1, r1.b1, 1
add r1.w2, r1.w2, r1.b1
lbco r1.w0, PAMEM_CONST_PORTCFG, r1.w2, 2
// add to base queue and flow
add s_curFwd.flowId, s_curFwd.flowId, r1.b1
add s_curFwd.queue, s_curFwd.queue, r1.b0
mov r2.b2, PA_DEST_CDMA
jmp l_c1CurPktForward1_no_priority
l_c1CurPktForward1_no_eqos_changes:
add s_curFwd.queue, s_curFwd.queue, r2.b1
qbbc l_c1CurPktForward1_no_priority, s_curFwd_host.ctrlBitmap.t_pa_routing_if_dest_flow
// Now update the destination flow based on the ethernet interface
add s_curFwd.flowId, s_curFwd.flowId, r2.b1
jmp l_c1CurPktForward1_no_priority
l_c1CurPktForward1_no_if_changes:
// adjust destination queue if QoS queue
qbbc l_c1CurPktForward1_dscp_priority, s_curFwd_host.ctrlBitMap.t_pa_routing_priority_vlan
l_c1CurPktForward1_vlan_priority:
lsr r2.b0, s_pktCxt.vlanPri_vLink.b1, PKT_VLAN_PRI_SHIFT
add s_curFwd.queue, s_curFwd.queue, r2.b0
mov r2.b2, THREADID_CDMA0
l_c1CurPktForward1_dscp_priority:
// No priority routing enabled
qbbc l_c1CurPktForward1_no_priority, s_curFwd_host.ctrlBitMap.t_pa_routing_priority_dscp
add s_curFwd.queue, s_curFwd.queue, s_pktCxt.priority
mov r2.b2, THREADID_CDMA0
l_c1CurPktForward1_no_priority:
// store L3offset2 only if host route
lbco r1.b0, cCdeOutPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt5.l3l5offset), 1
qbeq l_c1CurPktForward1_1, r1.b0, 0
sbco r1.b0, cCdeOutPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt5.l3offset2), 1
l_c1CurPktForward1_1:
// Check whether command set is enabled, which precedes the multi-route option
qbeq l_c1CurPktForward8, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_CMDSET
qbeq l_c1CurPktForward8, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_CMDSET_USR_STATS
qbbs l_c1CurPktForward2, s_curFwd_host.ctrlBitMap.t_pa_multiroute
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO | CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE) << 8)
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO | CDE_FLG_SET_FLOWID) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.threadId, PA_DEST_CDMA
//mov s_cdeCmdPkt.destQueue, s_curFwd.queue
mov s_cdeCmdPkt.flowId, s_curFwd.flowId
sbco s_curFwd.queue, cCdeOutPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_c1CurPktForward9, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_c1CurPktForward2:
// For multi routing the command ID and the multi route index
// must be patched into the packet. These are two bytes which span 2 32 bits words.
// Both words are read in, changed, and sent out at once
// lbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), 8
// Note: It can be skipped since the original commad is 0
//and s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, NOT_PKT_CONTEXT_CMD_MASK
or s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, PSH_CMD_RX_FWD << PKT_CONTEXT_CMD_SHIFT
set s_pktCxt.flags.t_flag_multi_route
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
lsl r2.b0, s_curFwd_host.multiIdx, PKT_EIDX_SHIFT
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, r2.b0
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), 8
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_POST
//xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
// Send the packet on its way
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.threadId, s_curFwd_host.paPdspRouter
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_c1CurPktForward9, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_c1CurPktForward3:
l_c1CurPktForward4:
qbne l_c1CurPktForward5, s_curFwd.forwardType, PA_FORWARD_TYPE_SRIO
// Routing to SRIO
// Overwrite Packet Info with psinfo0 and psinfo2
sbco s_curFwd_srio.psInfo0, cCdeOutPkt, SIZE(s_pktDescr), 8
// pactch the packet type
lbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.pktType_pvtFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_TYPE_MASK
lsl r2.b1, s_curFwd_srio.pktType, PA_PKT_TYPE_SHIFT
or r2.b0, r2.b0, r2.b1
sbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.pktType_pvtFlags), 1
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO | CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE) << 8)
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO | CDE_FLG_SET_FLOWID) << 8)
mov s_cdeCmdPkt.psInfoSize, 8 // SRIO take 8 bytes Ps Info
//mov s_cdeCmdPkt.threadId, PA_DEST_CDMA
//mov s_cdeCmdPkt.destQueue, s_curFwd.queue
mov s_cdeCmdPkt.flowId, s_curFwd.flowId
sbco s_curFwd.queue, cCdeOutPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
ret
l_c1CurPktForward5:
qbne l_c1CurPktForward6, s_curFwd.forwardType, PA_FORWARD_TYPE_ETH
// Routing to ETH
// Clear psflags
lbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
and r2.b0, r2.b0, NOT_PA_PKT_PS_FLAGS_MASK
and r0.b0, s_curFwd_eth.psflags, PAFRM_ETH_PS_FLAGS_CTRL_MASK
or r2.b0, r2.b0, r0.b0
sbco r2.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), 1
// Set EMAC output port
and r0.b0, s_curFwd_eth.psflags, PAFRM_ETH_PS_FLAGS_PORT_MASK
sbco r0.b0, cCdeOutPkt, OFFSET(s_pktDescrCpsw.outPort), 1
// Clear TimeSync word
mov r0, 0
sbco r0, cCdeHeldPkt, OFFSET(s_pktDescrCpsw.tsWord), 4
// Send the packet on its way
add s_pktExtDescr.threadId, s_curFwd_eth.priority, THREADID_ETHERNET1
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, 0
//mov s_cdeCmdPkt.threadId, PA_DEST_ETH
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_c1CurPktForward9, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_c1CurPktForward6:
qbeq l_c1CurPktForward7, s_curFwd.forwardType, PA_FORWARD_TYPE_DISCARD
// Invalid match type in table - this should never happen
l_c1CurPktForward7:
// Do a silent discard, release the packet
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_DISCARD
// Free the packet Ext Info
set s_pktExtDescr.flags.fDroppedInd
//mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_ADVANCE (clear all other bytes)
ldi r4, CDE_CMD_PACKET_ADVANCE
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_c1CurPktForward9, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_USR_STATS
ret
l_c1CurPktForward8:
// For command set, the command ID and the command set index
// must be patched into the packet.
lbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), 8
// Note: It can be skipped since the original commad is 0
//and s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, NOT_PKT_CONTEXT_CMD_MASK
or s_pktCxt.paCmdId_Length, s_pktCxt.paCmdId_Length, PSH_CMD_RX_FWD << PKT_CONTEXT_CMD_SHIFT
set s_pktCxt.flags.t_flag_cmdset
qbne l_c1CurPktForward8_0, r2.b2, THREADID_CDMA0
// during QoS the destination would have been modified to CDMA0, indicate it in reserved bit 14,
// for egress PDSPs to handle when it gets from QoS.
set s_pktCxt.flags.t_flag_eg_cmdSet
l_c1CurPktForward8_0:
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), OFFSET(s_pktCxt.startOffset)
sbco s_curFwdRxCmdSet.index, cCdeOutPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt4.cmdSetIdx), SIZE(s_pktCxt4.cmdSetIdx)
sbco s_pktExtDescr.threadId, cCdeOutPkt, SIZE(s_pktDescr) + OFFSET(s_pktCxt4.threadIdOrig), SIZE(s_pktCxt4.threadIdOrig)
// patch the flow Id and queue Id
sbco s_curFwd.flowId, cCdeOutPkt, OFFSET(s_pktDescr.flowIdx), SIZE(s_pktDescr.flowIdx)
sbco s_curFwd.queue, cCdeOutPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, r2.b2
//xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
ldi r4, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
//mov s_cdeCmdPkt.threadId, PA_DEST_PA_M_0
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbeq l_c1CurPktForward9, s_curFwdRxCmdHdr.cmd, PA_RX_CMD_CMDSET_USR_STATS
ret
l_c1CurPktForward9:
// User Statistics operation:
// Record and insert the statistics update into the FIFO
// Note all user commands are in the same location (r12)
mov s_usrStatsReq.index, s_curFwd_host.cmd.w0
lbco s_fifoCb, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB, SIZE(s_fifoCb)
add r1.b0, s_fifoCb.in, 4
and r1.b0, r1.b0, 0x1F
qbne l_c1CurPktForward9_1, s_fifoCb.out, r1.b0
// FIFO is full, bump the system error
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_SYSTEM_FAIL
ret
l_c1CurPktForward9_1:
// Insert the request into the FIFO
add r1.w2, s_fifoCb.in, OFFSET_PDSP_USR_STATS_FIFO
sbco s_usrStatsReq, PAMEM_CONST_USR_STATS_FIFO_BASE, r1.w2, SIZE(s_usrStatsReq)
sbco r1.b0, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB + OFFSET(s_fifoCb.in), SIZE(s_fifoCb.in)
ret
.leave currentFwdScope
.leave pktScope
.leave cdeScope
.leave usrStatsFifoScope
// ******************************************************************************************************
// * FUNCTION PURPOSE: Forward a packet that failed a LUT1 search
// ******************************************************************************************************
// * DESCRIPTION: The packet is forwarded based on a previous match, or else
// * through the no match route
// *
// * This function exits through a call to stdHeldPktForward, so
// * the forwarding information must be loaded as required in
// * structures s_matchForward, s_matchForward_host, etc
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2: scratch
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: | packet capture info (L2 PDSP only) -
// * R7: | -
// * R8: -
// * R9: | - - pktScope used
// * R10: | Error forward Info - lut1MatchSCope - for size and offset info
// * R11: | - - only
// * R12: | - -
// * R13: -
// * R14:
// * R15:
// * R16:
// * R17:
// * R18:
// * R19:
// * R20:
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-Error Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ******************************************************************************************************/
.using cdeScope
.using pktScope
.using lut1MatchScope
#ifndef PASS_PROC_FIREWALL
f_c1ForwardHeldPacketNoMatch:
// Inc the no match stat
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_LUT1_NO_MATCH
#ifdef PASS_PROC_DEF_ROUTE
qbbc l_c1ForwardHeldPacketNoMatch_no_def_r, s_runCxt.flag2.t_def_route
// Reload the packet context (already loaded)
// lbco s_pktCxt.paCmdId_Length, cCdeHeldPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
// default route is enabled globally
// Update r1 with offset for interface (get to zero base)
lsr r1.w0, s_pktCxt.eId_portNum_nextHdr, PKT_EMACPORT_SHIFT
and r1.w0, r1.w0, PKT_EMACPORT_MASK
qbeq l_c1ForwardHeldPacketNoMatch_no_def_r, r1.w0, 0
mov r1.w2, OFFSET_DEFAULT_ROUTE_CFG_BASE
sub r1.w0, r1.w0, 1
lsl r1.w0, r1.w0, 6
add r1.w0, r1.w0, r1.w2
// load the default control bit map for post-classification no match packets
lbco r2.b0, PAMEM_CONST_PORTCFG, r1.w0, 1
l_c1ForwardHeldPacketNoMatch_DFR_MC:
//Is it a multicast packet
qbbc l_c1ForwardHeldPacketNoMatch_DFR_BC, s_pktCxt.flags.t_flag_multicast
//multicast packet
qbbc l_c1ForwardHeldPacketNoMatch_BM_MC, r2.b0.t_default_route_mc_enable
add r1.w0, r1.w0, 4
jmp l_c1ForwardHeldPacketNoMatch_DFR_end
l_c1ForwardHeldPacketNoMatch_DFR_BC:
//Is it a broadcast packet
qbbc l_c1ForwardHeldPacketNoMatch_DFR_UC, s_pktCxt.flags.t_flag_broadcast
//broadcast packet
qbbc l_c1ForwardHeldPacketNoMatch_BM_BC, r2.b0.t_default_route_bc_enable
add r1.w0, r1.w0, 4 + SIZE(s_fmPlace)
jmp l_c1ForwardHeldPacketNoMatch_DFR_end
l_c1ForwardHeldPacketNoMatch_DFR_UC:
//Unicast packet
qbbc l_c1ForwardHeldPacketNoMatch_BM_4, r2.b0.t_default_route_uc_enable
add r1.w0, r1.w0, 4 + SIZE(s_fmPlace)*2
// pass through
l_c1ForwardHeldPacketNoMatch_DFR_end:
lbco s_fmPlace, PAMEM_CONST_PORTCFG, r1.w0, SIZE(s_fmPlace)
jmp f_stdHeldPktForward
l_c1ForwardHeldPacketNoMatch_no_def_r:
#endif
// Read from the packet the previous match information (already loaded)
// lbco s_pktCxt.paCmdId_Length, cCdeHeldPkt, SIZE(s_pktDescr), OFFSET(s_pktCxt.hdrBitmask)
// Broadcast and multicast check if no match found
// Assume that this rule precedes the pre-match rule
l_c1ForwardHeldPacketNoMatch_BM_1:
qbbc l_c1ForwardHeldPacketNoMatch_BM_2, s_pktCxt.flags.t_flag_multicast
l_c1ForwardHeldPacketNoMatch_BM_MC:
mov r1.w0, EROUTE_IP_MULTICAST*SIZE(s_fmPlace)
jmp l_c1ForwardHeldPacketNoMatch_BM_3
l_c1ForwardHeldPacketNoMatch_BM_2:
qbbc l_c1ForwardHeldPacketNoMatch_BM_4, s_pktCxt.flags.t_flag_broadcast
l_c1ForwardHeldPacketNoMatch_BM_BC:
mov r1.w0, EROUTE_IP_BROADCAST*SIZE(s_fmPlace)
//pass through
l_c1ForwardHeldPacketNoMatch_BM_3:
// Load the routing information for broadcast/multicast type into the
// matchforward context
lbco s_fmPlace, PAMEM_CONST_EROUTE, r1.w0, SIZE(s_fmPlace)
qbeq l_c1ForwardHeldPacketNoMatch_BM_4, s_matchForward.forwardType, PA_FORWARD_TYPE_DISCARD
jmp f_stdHeldPktForward
l_c1ForwardHeldPacketNoMatch_BM_4:
qbbs l_c1ForwardHeldPacketNoMatch0, s_pktCxt.flags.t_flag_pl1Match
// For no previous match set the error type in the packet, load the
// error routing information and route
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, EROUTE_LUT1_FAIL << PKT_EIDX_SHIFT
sbco s_pktCxt.eId_portNum_nextHdr, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt.eId_portNum_nextHdr), 2
// Load the routing information for LUT1 fail error type into the
// matchforward context
lbco s_fmPlace, PAMEM_CONST_EROUTE, EROUTE_LUT1_FAIL << 4, SIZE(s_fmPlace)
jmp f_stdHeldPktForward
l_c1ForwardHeldPacketNoMatch0:
// In the case of a previous match, the previous match routing information
// must be loaded into the matchForward context
lsr r1.b2, s_pktCxt.phyLink, PKT_PDSP_ID_SHIFT // Get PDSP ID
mov r1.w0, s_pktCxt.phyLink
and r1.b1, r1.b1, PKT_L1IDX_MASK
lsl r1.w0, r1.w0, 6 // get the associated table offset
lsl r1.b2, r1.b2, 2 // PDSP ID * 4 = offset to the nextFail table base address
lbco r2, PAMEM_CONST_NFAIL_BASE, r1.b2, 4
//Load the nextfail routing information
lbbo s_fmPlace, r2, r1.w0, SIZE(s_fmPlace)
jmp f_stdHeldPktForward
#endif
.leave cdeScope
.leave pktScope
.leave lut1MatchScope
// ************************************************************************************************
// * FUNCTION PURPOSE: Begin parsing a packet
// ************************************************************************************************
// * DESCRIPTION: A new packet ID is assigned and a packet parse is begun
// *
// * Register Usage:
// *
// * R0: scratch
// * R1: scratch
// * R2: | checkScope
// * R3: b0 - next header type - pktScope
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: | | packet capture info (L2 PDSP only)
// * R7: | |
// * R8: |
// * R9: | LUT1 View - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: | (packet extended descriptor)
// * R15: |
// * R16: |
// * R17: | LUT1 View - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2 - param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ************************************************************************************************/
.using lut1Scope
.using pktScope
.using cdeScope
.using checkScope
.using pktCaptureScope
f_c1Parse:
lbco r1, cMailbox, 0, 4
add r1, r1, 1
sbco r1, cMailbox, 0, 4
// Read the descriptor
xin XID_CDEDATA, s_pktDescr, SIZE(s_pktDescr)
// Read packet extended info
xin XID_PINFO_SRC, s_pktExtDescr, SIZE(s_pktExtDescr)
// Check drop/bypass flag
qbbc l_c1Parse1, s_pktDescr.pktFlags.t_pktBypass
#ifdef PASS_PROC_EOAM
// Check pkt capture flag
qbbs l_c1Parse1_0, s_pktDescr.pktFlags.t_pktCapture
// check if pkt from ethernet
// Honor the bypass flag if packet is not from ethernet
qbbc l_c1Parse1_0, s_pktDescr.pktFlags.t_pktEthernet
// ignore the bypass flag when EOAM feature is enabled
qbbc l_c1Parse1_0, s_runCxt.flag3.t_eoamEn
l_c1Parse1_eoam:
clr s_pktDescr.pktFlags.t_pktBypass
// mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_N_PKTS
// The context is read from the control section. Advance
// to the control section
mov s_cdeCmdWd.operation, CDE_CMD_ADVANCE_TO_CONTROL
xout XID_CDECTRL, s_cdeCmdWd, 4
// Insert 32 bytes of PS info
// This is legal even though the window has advanced to control
//mov s_cdeInsert.operation, CDE_CMD_INSERT_PSDATA
//mov s_cdeInsert.byteCount, 32
ldi r4, CDE_CMD_INSERT_PSDATA | (32 << 8)
xout XID_CDECTRL, s_cdeCmdWd, 4
// below check is not needed since the packet is not from Ethernet OR SRIO
// qbeq l_c1Parse6, s_pktDescr.ctrlDataSize, 0 // Packet is from ethernet
// qbne l_c1Parse3a, s_pktDescr.ctrlDataSize, 8 // Only SRIO packet contains 8-byte PS Info
// Extract pkt type
// lsr r1.b0, s_pktDescr.pktType_pvtFlags, PA_PKT_TYPE_SHIFT
// qbeq l_c1Parse8, r1.b0, PA_PKT_TYPE_SRIO_TYPE_9
// qbeq l_c1Parse8, r1.b0, PA_PKT_TYPE_SRIO_TYPE_11
// l_c1Parse3a:
// l_c1Parse3a - l_c1Parse5: command and re-entry packet
// Read in the whole packet context. This is the largest command size
// There is no cost if this is not a data packet.
xin XID_CDEDATA, s_pktCxt, SIZE(s_pktCxt)
// extract the command ID
lsr r1.b0, s_pktCxt.paCmdId_Length, SUBS_CMD_WORD_ID_SHIFT
// qbeq l_c1Parse9, r1.b0, PSH_CMD_PA_RX_PARSE
qbeq f_paConfigure, r1.b0, PSH_CMD_CONFIG
// l_c1Parse9:
// Delete the control information. It will be replace with the packet context during parse
//mov s_cdeCmdWd.operation, CDE_CMD_FLUSH_TO_PACKET
//xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// Delete only the pktCxt from the control info
mov s_cdeCmdWd.operation, CDE_CMD_FLUSH
//mov s_cdeCmdWd.byteCount, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
sub s_cdeCmdWd.byteCount, s_pktDescr.ctrlDataSize, 16
xout XID_CDECTRL, s_cdeCmdWd, 4
mov s_cdeCmdWd.operation, CDE_CMD_ADVANCE_TO_PACKET
xout XID_CDECTRL, s_cdeCmdWd, 4
// save Extended Header to be examined later
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
// l_c1Parse10:
// Default RA setting
// TBD: priority settings
zero &s_raInfo, SIZE(s_raInfo)
qbbc l_c1Parse0_set_ra_threadId_1, s_runCxt.flag2.t_raToQueue
// RA output is host queue
mov s_raInfo.flags, THREADID_CDMA0
jmp l_c1Parse0_set_ra_threadId_end
l_c1Parse0_set_ra_threadId_1:
mov s_raInfo.flags, PASS_RA_DEST_THREAD_ID
// pass through
l_c1Parse0_set_ra_threadId_end:
wbs s_flags.info.tStatus_CDEOutPacket
sbco s_raInfo, cCdeOutPkt, SIZE(s_pktDescr) + 24, SIZE(s_raInfo)
// s_l1View1(16), s_l1View2 (16) and s_l1View3 (16) share the same area
// Clear the LUT1 view areas
// Note: packet descriptor will still reside at r6-r13
zero &s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V1, s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V2, s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V3, s_l1ViewD, SIZE(s_l1ViewD)
jmp f_c1ParseMac
#endif
l_c1Parse1_0:
// Clear Bypass at the last PDSP
#ifdef PASS_LAST_PDSP
clr s_pktDescr.pktFlags.t_pktBypass
xout XID_CDEDATA, s_pktDescr.pktFlags, SIZE(s_pktDescr.pktFlags)
#endif
// TBD: Move to the end of packet
mov s_cdeCmdWd.operation, CDE_CMD_ADVANCE_TO_END
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
mov s_cdeCmdWd.operation, CDE_CMD_PACKET_ADVANCE
mov s_cdeCmdPkt.optionsFlag, 0
set s_runCxt.flags.t_previous_skip
jmp l_c1Parse14_1
l_c1Parse1:
#ifdef PASS_PROC_L2_CAPTURE
// Note: pktCapture and pktPypass are exclsuive to each other
qbbc l_c1Parse2, s_pktDescr.pktFlags.t_pktCapture
// Clear falg Capture
clr s_pktDescr.pktFlags.t_pktCapture
xout XID_CDEDATA, s_pktDescr.pktFlags, SIZE(s_pktDescr.pktFlags)
// Jump to copy initiate, when there is no active look up
qbbc l_c1Parse1_copy, s_runCxt.flags.t_previous_held
// The extended header must be in order. To handle this case, we need to store the extended header at
// scratch memory and set a flag
// There is an active lookup, check whether we have room to copy packet
// The formula to compute the room is
// (Previous CDE packet Size + current CDE Pkt Size * 2 ) < 2300
set s_runCxt.flags.t_extHdr_held
add r1.w2, s_pktCxt.pseudo, s_pktDescr.pktDataSize
add r1.w2, r1.w2, s_pktDescr.pktDataSize
mov r1.w0, 2300
// Jump to copy operation if there is a space in output buffer
qbgt l_c1Parse1_copy, r1.w2, r1.w0
clr s_runCxt.flags.t_extHdr_held
// LUT1 is very busy holding up the space, so wait and free output space before copy
// save Extended Header to be examined later
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
wbc s_flags.info.tStatus_Lut1Busy
// A lookup is complete for the held packet
xin XID_LUT1CMD, s_l1Status, SIZE(s_l1Status)
// Common operation regredless of the lookup result
// Pop the next extended info and write it out
xin XID_PINFO_B, s_pktExtDescr, SIZE(s_pktExtDescr)
// Wait for the held packet to appear in the CDE
// (Its almost certainly already there)
wbs s_flags.info.tStatus_CDEHeldPacket
wbc s_flags.info.tStatus_CDEBusy
// Load the first 20-byte to pktInfo
// The first 5 32-bit word in the pkt context may be examized and patched
lbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 20
qbbc l_c1Parse1_NoMatchRelease, s_l1Status.status.L1_STATUS_ENTRY_MATCH
qbbc l_c1Parse1_FWallMatchRelease, s_runCxt.flag3.t_eoamEn
call f_c1ForwardHeldEoamPktMatch
jmp l_c1Parse1_clr_activeLookup
l_c1Parse1_FWallMatchRelease:
call f_c1ForwardHeldFirewallPktMatch
jmp l_c1Parse1_clr_activeLookup
l_c1Parse1_NoMatchRelease:
qbbc l_c1Parse1_FWallNoMatchRelease, s_runCxt.flag3.t_eoamEn
call f_c1ForwardHeldEoamPktNoMatch
jmp l_c1Parse1_clr_activeLookup
l_c1Parse1_FWallNoMatchRelease:
call f_c1ForwardHeldFirewallPktNoMatch
l_c1Parse1_clr_activeLookup:
clr s_runCxt.flags.t_previous_held
// restore extended packet header
xin XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
// pass through
l_c1Parse1_copy:
// save the current threadId for EOAM (needed if EOAM mode is enabled)
mov r0.b0, s_pktExtDescr.threadId
// Packet Capture activity
mov s_pktExtDescr.threadId, PA_DEST_CDMA
//mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_COPY
//mov s_cdeCmdPkt.optionsFlag, 0
ldi r4, CDE_CMD_PACKET_COPY
xout XID_CDECTRL, s_cdeCmdPkt, 4
clr s_pktExtDescr.flags.fFinal
// The extended header must be in order. To handle this case, we need to store the extended header at
// scratch memory and set a flag
qbbs l_c1Parse1_copy_held_extHdr, s_runCxt.flags.t_extHdr_held
// use the fFinal bit as an indication
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
jmp l_c1Parse1_copy_wait_new_packet
l_c1Parse1_copy_held_extHdr:
sbco s_pktExtDescr, PAMEM_CONST_PDSP_CXT, OFFSET_EXT_HDR_PENDING, SIZE(s_pktExtDescr)
// pass through
l_c1Parse1_copy_wait_new_packet:
// Restore the threadID before EOAM
mov s_pktExtDescr.threadId, r0.b0
set s_pktExtDescr.flags.fFinal
// Wait for new packet to be ready
wbs s_flags.info.tStatus_CDENewPacket
// Read the packet descriptor
xin XID_CDEDATA, s_pktDescr, SIZE(s_pktDescr)
#endif
l_c1Parse2:
#ifdef PASS_PROC_EOAM
qbbc l_c1Parse2_0, s_pktDescr.pktFlags.t_pktEthernet
qbbc l_c1Parse2_0, s_runCxt.flag3.t_eoamEn
jmp l_c1Parse1_eoam
#endif
l_c1Parse2_0:
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_N_PKTS
#ifdef PASS_TIMESTAMP_OP
qbbc l_c1Parse2_no_eoam, s_runCxt.flag3.t_eoamEn
// Add timestamp to all the packets with new packet ID including the command packet
mov32 r1, PDSP0_TIMER
lbbo r0, r1, 8, 4
mov r0.w2, 0xffff
sub s_pktCxt7.timeStamp_lo.w0, r0.w2, r0.w0
lbco r0, PAMEM_CONST_CUSTOM, OFFSET_SYS_TIMESTAMP, 8
clr r5.b0.t0
qblt l_c1Parse2_timestamp_loaded, s_pktCxt7.timeStamp_lo.w0, 100
qbbc l_c1Parse2_timestamp_loaded, s_flags.info.tStatus_Timer
set s_flags.info.tStatus_Timer // set to clear timer event
add r0, r0, 1
adc r1, r1, 0
sbco r0, PAMEM_CONST_CUSTOM, OFFSET_SYS_TIMESTAMP, 8
set r5.b0.t0
l_c1Parse2_timestamp_loaded:
mov s_pktCxt7.timeStamp_lo.w2, r0.w0
// prepare high 4 bytes
mov s_pktCxt7.timeStamp_hi.w0, r0.w2
mov s_pktCxt7.timeStamp_hi.w2, r1.w0
qbbc l_c1Parse2_no_eoam, r5.b0.t0
call f_eoamTimeConvert
l_c1Parse2_no_eoam:
// EOAM Time Convert uses r4, r5, it is okay as long as
// the code following it updates r4 and r5 accordingly
mov s_cdeCmdIn2.data, s_pktDescr.swinfo0
#endif
l_c1Parse3:
// The context is read from the control section. Advance
// to the control section
//mov s_cdeInsert.operation, CDE_CMD_ADVANCE_TO_CONTROL
ldi r4, CDE_CMD_ADVANCE_TO_CONTROL
xout XID_CDECTRL, s_cdeCmdWd, 4
// Insert 32 bytes of PS info
// This is legal even though the window has advanced to control
//mov s_cdeInsert.operation, CDE_CMD_INSERT_PSDATA
//mov s_cdeInsert.byteCount, 32
ldi r4, CDE_CMD_INSERT_PSDATA | (32 << 8)
xout XID_CDECTRL, s_cdeCmdWd, 4
qbeq l_c1Parse6, s_pktDescr.ctrlDataSize, 0 // Packet is from ethernet
qbne l_c1Parse3a, s_pktDescr.ctrlDataSize, 8 // Only SRIO packet contains 8-byte PS Info
// Extract pkt type
lsr r1.b0, s_pktDescr.pktType_pvtFlags, PA_PKT_TYPE_SHIFT
qbeq l_c1Parse8, r1.b0, PA_PKT_TYPE_SRIO_TYPE_9
qbeq l_c1Parse8, r1.b0, PA_PKT_TYPE_SRIO_TYPE_11
l_c1Parse3a:
// l_c1Parse3a - l_c1Parse5: command and re-entry packet
// Read in the whole packet context. This is the largest command size
// There is no cost if this is not a data packet.
xin XID_CDEDATA, s_pktCxt, SIZE(s_pktCxt)
#ifdef PASS_DETECT_IP_PROC
qbbc l_c1Parse3a_in3, s_runCxt.flag3.t_eoamEn
// Clear the IP Processing information
clr s_pktCxt.flags.t_flag_ipProc
l_c1Parse3a_in3:
#endif
#ifdef PASS_VERIFY_SCTP_CRC
qbbc l_c1Parse3b, s_pktCxt.flags.t_flag_crc_verify
// SCTP CRC Verification
call f_paSctpVerifyCRC
set s_runCxt.flags.t_previous_skip
jmp l_c1Parse14_1
l_c1Parse3b:
#endif
// extract the command ID
lsr r1.b0, s_pktCxt.paCmdId_Length, SUBS_CMD_WORD_ID_SHIFT
qbeq l_c1Parse9, r1.b0, PSH_CMD_PA_RX_PARSE
qbeq f_paConfigure, r1.b0, PSH_CMD_CONFIG
l_c1Parse4:
// The packet has an invalid command
// Inc the stat
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_INVALID_CONTROL
// pass through
l_c1Parse5:
// Discard the packet
set s_pktExtDescr.flags.fDroppedInd
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_ADVANCE
mov s_cdeCmdPkt.optionsFlag, 0
set s_runCxt.flags.t_previous_skip
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
// Packet should be dropped at the last DSP at this stage
jmp l_c1Parse14_1
l_c1Parse6:
// Packet is from ethernet and has not been seen by the PA before
#ifdef PASS_PROC_L2
qbbc l_c1Parse5_0, s_runCxt.flag3.t_eoamEn
set s_pktDescr.pktFlags.t_pktEthernet
wbs s_flags.info.tStatus_CDEOutPacket
sbco s_pktDescr.pktFlags, cCdeOutPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
l_c1Parse5_0:
#endif
#ifdef PASS_PROC_FIREWALL
// Firewall does not expect MAC packet, drop the packet
jmp l_c1Parse5
#endif
#ifdef PASS_PROC_INGRESS_PKT_CLONE
// Packet is from ethernet and has not been seen by the PA before
// Check if global packet capture feature is enabled
// When disabled go through regular code flow
qbbc l_c1Parse6a, s_runCxt.flag2.t_ingress_pCapEnable
// Global packet capture feature is enabled, check whether
// per interface capture is enabled?
// load the ingress port number to get the offset
// Update r1 with offset for interface
lsl r1.w0, s_pktDescr.srcId, 3
// There is no need to update destination queue and flow when interface is unknown
qbeq l_c1Parse6a, r1.w0, 0
add r1.w0, r1.w0, OFFSET_INGRESS_PKT_CAP_CFG_BASE
// load the configurations control bit map
lbco s_paPktCapScr, PAMEM_CONST_PORTCFG, r1.w0, SIZE(s_paPktCapScr)
// Check the enable bit for ethernet capture
qbbc l_c1Parse6a, s_paPktCapScr.ctrlBitMap.t_pkt_cap_enable
//store the upper 32-bit of timestamp
sbco &s_cdeCmdIn2.data, PAMEM_CONST_PARSE, OFFSET_TIMESTAMP_TMP, 4
// Jump to copy initiate, when there is no active look up
qbbc l_c1Parse6_copy, s_runCxt.flags.t_previous_held
// The extended header must be in order. To handle this case, we need to store the extended header at
// scratch memory and set a flag
// There is an active lookup, check whether we have room to copy packet
// The formula to compute the room is
// (Previous CDE packet Size + current CDE Pkt Size * 2 ) < 2300
set s_runCxt.flags.t_extHdr_held
add r1.w2, s_pktCxt.pseudo, s_pktDescr.pktDataSize
add r1.w2, r1.w2, s_pktDescr.pktDataSize
mov r1.w0, 2300
// Jump to copy operation if there is a space in output buffer
qbgt l_c1Parse6_copy, r1.w2, r1.w0
clr s_runCxt.flags.t_extHdr_held
// LUT1 is very busy holding up the space, so wait and free output space before copy
// save Extended Header to be examined later
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
wbc s_flags.info.tStatus_Lut1Busy
// A lookup is complete for the held packet
xin XID_LUT1CMD, s_l1Status, SIZE(s_l1Status)
// Common operation regredless of the lookup result
// Pop the next extended info and write it out
xin XID_PINFO_B, s_pktExtDescr, SIZE(s_pktExtDescr)
// Wait for the held packet to appear in the CDE
// (Its almost certainly already there)
wbs s_flags.info.tStatus_CDEHeldPacket
wbc s_flags.info.tStatus_CDEBusy
// Load the first 20-byte to pktInfo
// The first 5 32-bit word in the pkt context may be examized and patched
lbco s_pktCxt, cCdeHeldPkt, SIZE(s_pktDescr), 20
qbbc l_c1Parse6_NoMatchRelease, s_l1Status.status.L1_STATUS_ENTRY_MATCH
call f_c1ForwardHeldPacketMatch
jmp l_c1Parse6_clr_activeLookup
l_c1Parse6_NoMatchRelease:
call f_c1ForwardHeldPacketNoMatch
l_c1Parse6_clr_activeLookup:
clr s_runCxt.flags.t_previous_held
// restore extended packet header
xin XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
// pass through
l_c1Parse6_copy:
wbs s_flags.info.tStatus_CDEOutPacket
// Issue Copy command (either to Host or Destination)
// Check is the copy to be done to host?
// Made sure if the packet capture scratch is intact
zero &s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
qbbs l_c1Parse6_copy_host, s_paPktCapScr.ctrlBitMap.t_pkt_cap_host
// Port mirror activity
// Routing to ETH
// Patch the output port
sbco s_paPktCapScr.mport_flow, cCdeOutPkt, OFFSET(s_pktDescrCpsw.outPort), 1
// Send the packet to ethernet mirror port
mov s_pktExtDescr.threadId, PA_DEST_ETH
// Jump to send packet and normal operation
jmp l_c1Parse6_copy_send
l_c1Parse6_copy_host:
// Packet Capture activity
mov s_pktExtDescr.threadId, PA_DEST_CDMA
mov s_cdeCmdPkt.destQueue, s_paPktCapScr.destQueue
mov s_cdeCmdPkt.flowId, s_paPktCapScr.mport_flow
sbco s_paPktCapScr.context, cCdeOutPkt, OFFSET(s_pktDescr.swinfo0), SIZE(s_paPktCapScr.context)
l_c1Parse6_copy_send:
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_COPY
mov s_cdeCmdPkt.optionsFlag, (CDE_FLG_SET_THREADID | CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO | CDE_FLG_SET_DESTQUEUE)
//mov s_cdeCmdPkt.psInfoSize, 0
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
#ifndef PASS_LAST_PDSP
lbco r0.w0, cCdeOutPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
set r0.w0.t_pktBypass
set r0.w0.t_pktCapture
sbco r0.w0, cCdeOutPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
#endif
clr s_pktExtDescr.flags.fFinal
// The extended header must be in order. To handle this case, we need to store the extended header at
// scratch memory and set a flag
qbbs l_c1Parse6_copy_held_extHdr, s_runCxt.flags.t_extHdr_held
// use the fFinal bit as an indication
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
jmp l_c1Parse6_copy_wait_new_packet
l_c1Parse6_copy_held_extHdr:
sbco s_pktExtDescr, PAMEM_CONST_PDSP_CXT, OFFSET_EXT_HDR_PENDING, SIZE(s_pktExtDescr)
// pass through
l_c1Parse6_copy_wait_new_packet:
set s_pktExtDescr.flags.fFinal
// Wait for new packet to be ready
wbs s_flags.info.tStatus_CDENewPacket
// Read the packet descriptor
xin XID_CDEDATA, s_pktDescr, SIZE(s_pktDescr)
// Move up to control and insert 32 bytes (40 bytes during EOAM) of PS data
// The context is read from the control section. Advance
// to the control section
mov s_cdeCmdWd.operation, CDE_CMD_ADVANCE_TO_CONTROL
xout XID_CDECTRL, s_cdeCmdWd, 4
// Insert 32 bytes of PS info
// This is legal even though the window has advanced to control
//mov s_cdeInsert.operation, CDE_CMD_INSERT_PSDATA
//mov s_cdeInsert.byteCount, 32
ldi r4, CDE_CMD_INSERT_PSDATA | (32 << 8)
xout XID_CDECTRL, s_cdeCmdWd, 4
//restore the upper 32-bit of timestamp
lbco &s_cdeCmdIn2.data, PAMEM_CONST_PARSE, OFFSET_TIMESTAMP_TMP, 4
#endif
l_c1Parse6a:
// Note: nextHdr = 0 (MAC) startOffset = 0
// Last 2 bytes already contain the upper 16 - bits of the timestamp
//Insert the upper 32-bit timestamp as control Info
//mov s_cdeInsert2.operation, CDE_CMD_INSERT_CONTROL
//mov s_cdeInsert2.byteCount, 8
ldi r4, CDE_CMD_INSERT_CONTROL | (8 << 8)
xout XID_CDECTRL, s_cdeCmdIn2, SIZE(s_cdeCmdIn2)
// wait for the sideband data to be ready
wbc s_flags.info.tStatus_CDEBusy
#ifdef PASS_TIMESTAMP_OP
qbbc l_c1Parse8_0, s_runCxt.flag3.t_eoamEn
//Insert the upper 32-bit PA timestamp as control Info
//mov s_cdeInsert2.operation, CDE_CMD_INSERT_CONTROL
//mov s_cdeInsert2.byteCount, 8
ldi r4, CDE_CMD_INSERT_CONTROL | (4 << 8)
mov r5, s_pktCxt7.timeStamp_hi
xout XID_CDECTRL, s_cdeCmdIn2, SIZE(s_cdeCmdIn2)
// wait for the sideband data to be ready
wbc s_flags.info.tStatus_CDEBusy
mov r5, s_pktCxt7.timeStamp_lo
xout XID_CDECTRL, s_cdeCmdIn2, SIZE(s_cdeCmdIn2)
// wait for the sideband data to be ready
wbc s_flags.info.tStatus_CDEBusy
l_c1Parse8_0:
#endif
//zero &s_pktCxt, OFFSET(s_pktCxt.timestamp)
zero &s_pktCxt, SIZE(s_pktCxt)
add s_pktCxt.endOffset, s_pktDescr.pktDataSize, s_pktExtDescr.mopLength
#ifdef PASS_PROC_L2
mov s_pktCxt.pseudo, s_pktDescr.pktDataSize
#endif
#ifdef PASS_PROC_L2_CAPTURE
mov s_pktCxt.pseudo, s_pktDescr.pktDataSize
#endif
jmp l_c1Parse9a
l_c1Parse8:
// Packet is from SRIO with a control data size of 8 bytes
// which means this is the first time the PA is seeing it.
zero &s_pktCxt, SIZE(s_pktCxt)
add s_pktCxt.endOffset, s_pktDescr.pktDataSize, s_pktExtDescr.mopLength
// save Extended Header to be examined later
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
mov s_pktCxt.eId_portNum_nextHdr, PA_HDR_UNKNOWN
// Continue to parse the SRIO packet normally
mov r30.w0, l_c1Parse12 // return to l_c1Parse12 after call to f_paSrio
jmp f_c1ParseSrio
l_c1Parse9:
// Delete the control information. It will be replace with the packet context during parse
//mov s_cdeCmdWd.operation, CDE_CMD_FLUSH_TO_PACKET
//xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// Delete only the pktCxt from the control info
mov s_cdeCmdWd.operation, CDE_CMD_FLUSH
//mov s_cdeCmdWd.byteCount, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
sub s_cdeCmdWd.byteCount, s_pktDescr.ctrlDataSize, 8
qbbc l_c1Parse9a_0, s_runCxt.flag3.t_eoamEn
// reserve another 8 bytes for PA timestamp
sub s_cdeCmdWd.byteCount, s_cdeCmdWd.byteCount, 8
l_c1Parse9a_0:
xout XID_CDECTRL, s_cdeCmdWd, 4
mov s_cdeCmdWd.operation, CDE_CMD_ADVANCE_TO_PACKET
xout XID_CDECTRL, s_cdeCmdWd, 4
l_c1Parse9a:
// advance the CDE to the first byte to examine in the packet
mov s_cdeCmdWd.operation, CDE_CMD_WINDOW_ADVANCE
mov s_cdeCmdWd.byteCount, s_pktCxt.startOffset
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// save Extended Header to be examined later
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
// next header is stored in 8 bit format during the parse
and s_next.Hdr, s_pktCxt.eId_portNum_nextHdr.b0, 0x3f
mov s_param.action, SUBS_ACTION_PARSE
#ifndef PASS_PROC_FIREWALL
// non-Firewall operation
// Clear any values in the error index only if not custom
qbeq l_c1Parse10, s_next.Hdr, PA_HDR_CUSTOM_C1
qbeq l_c1Parse9a_1, s_next.Hdr, PA_HDR_CUSTOM_C2
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
// Make sure the parse entry point is valid for classify1
// PA_HDR_UNKNOWN and others should use nextFail route
// Note: This is not a parsing error exception
// TBD: check may not be good enough now
qbgt l_c1Parse10, s_next.Hdr, PA_HDR_UNKNOWN
l_c1Parse9a_1:
#ifndef PASS_L4_BYPASS
#ifdef PASS_PROC_IPSEC_NAT_T
// Ingress1, PDSP1: Perform IPSEC ESP NAT-T detection
// Non-UDP and normal UDP packets should be forwarded to Ingress4 for L4 classification
qbeq l_c1Parse10, s_next.Hdr, PA_HDR_UDP
// Forward Non-UDP packets to Ingess4 for further classification
mov s_param.action, SUBS_ACTION_FWPKT3
jmp l_c1Parse14
#else
// The next header is not L3 header, use nextFail route
set s_runCxt.flags.t_failLookup
mov s_param.action, SUBS_ACTION_EXIT
jmp l_c1Parse16
#endif
#else
// L4 BYPASS: Ingess4, PDSP0: Forward L4 packets to PDSP1 for further classification
qbne l_c1Parse9b, s_next.Hdr, PA_HDR_UNKNOWN
set s_runCxt.flags.t_failLookup
mov s_param.action, SUBS_ACTION_EXIT
jmp l_c1Parse16
l_c1Parse9b:
set s_runCxt.flags.t_previous_skip
wbs s_flags.info.tStatus_CDEOutPacket
mov s_pktCxt.paCmdId_Length, (SIZE(s_pktCxt) + 7) & 0xf8 // round up to a multiple of 8 bytes
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
// Forward packet now
ldi s_cdeCmd.v0.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
// The bypass flag should not be set since this packet should be processed by the next PDSP for L4 lookup
jmp l_c1Parse14_2
#endif
#else
// Firewall operation
// r28.b0: store the original startoffset
// Firewall does not handle the following protocols
qbeq l_c1Parse9b, s_next.Hdr, PA_HDR_CUSTOM_C1
qbeq l_c1Parse9b, s_next.Hdr, PA_HDR_CUSTOM_C2
qble l_c1Parse9b, s_next.Hdr, PA_HDR_TCP
// Firewall parsing preparation
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
mov r28.b0, s_pktCxt.startOffset
set s_runCxt.flags.t_l4Avil
jmp l_c1Parse10
l_c1Parse9b:
set s_runCxt.flags.t_failLookup
mov s_param.action, SUBS_ACTION_EXIT
wbs s_flags.info.tStatus_CDEOutPacket
mov s_pktCxt.paCmdId_Length, (SIZE(s_pktCxt) + 7) & 0xf8 // round up to a multiple of 8 bytes
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
jmp l_c1Parse16
#endif
l_c1Parse10:
#ifdef PASS_PROC_FIREWALL
// Default RA setting
// TBD: priority settings
zero &s_raInfo, SIZE(s_raInfo)
qbbc l_c1Parse10_set_ra_threadId_1, s_runCxt.flag2.t_raToQueue
// RA output is host queue
mov s_raInfo.flags, THREADID_CDMA0
jmp l_c1Parse10_set_ra_threadId_end
l_c1Parse10_set_ra_threadId_1:
mov s_raInfo.flags, PASS_RA_DEST_THREAD_ID
// pass through
l_c1Parse10_set_ra_threadId_end:
#ifdef PASS_INNER_RA
set s_raInfo.flags.t_ra_flag_2nd_inst
#endif
wbs s_flags.info.tStatus_CDEOutPacket
sbco s_raInfo, cCdeOutPkt, SIZE(s_pktDescr) + 24, SIZE(s_raInfo)
#endif
// s_l1View1(16), s_l1View2 (16) and s_l1View3 (16) share the same area
// Clear the LUT1 view areas
// Note: packet descriptor will still reside at r6-r13
zero &s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V1, s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V2, s_l1ViewD, SIZE(s_l1ViewD)
xout XID_LUT1V3, s_l1ViewD, SIZE(s_l1ViewD)
set s_runCxt.flags.t_firstLookup
jmp l_c1Parse11_1
l_c1Parse11:
// The main parse loop
//
// General Error check to avoid infinite loop
// r28.b3: previous startOffset
//
qbge l_c1Parse11_1, r28.b3, s_pktCxt.startOffset
and s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, NOT_PKT_EIDX_MASK
or s_pktCxt.eId_portNum_nextHdr.b1, s_pktCxt.eId_portNum_nextHdr.b1, EROUTE_PARSE_FAIL << PKT_EIDX_SHIFT
mov s_param.action, SUBS_ACTION_EXIT
jmp l_c1Parse14
l_c1Parse11_1:
// Util SUBS_ACTION_LOOKUP or SUBS_ACTION_EXIT occur
mov r28.b3, s_pktCxt.startOffset
lsl r0.b0, s_next.Hdr, 1
lbco r0.w2, PAMEM_CONST_PARSE, r0.b0, 2
call r0.w2
clr s_runCxt.flags.t_firstLookup
qbeq l_c1Parse11, s_param.action, SUBS_ACTION_PARSE
l_c1Parse12:
#ifndef PASS_PROC_FIREWALL
// Put the next header type back into the context
and s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, 0xc0
or s_pktCxt.eId_portNum_nextHdr.b0, s_pktCxt.eId_portNum_nextHdr.b0, s_next.Hdr
#ifdef PASS_PROC_DEF_ROUTE
qbbc l_c1Parse14, s_runCxt.flag2.t_def_route
// default route is enabled globally
// Update r1 with offset for interface (get to zero base)
lsr r1.w0, s_pktCxt.eId_portNum_nextHdr, PKT_EMACPORT_SHIFT
and r1.w0, r1.w0, PKT_EMACPORT_MASK
qbeq l_c1Parse14, r1.w0, 0
mov r1.w2, OFFSET_DEFAULT_ROUTE_CFG_BASE
sub r1.w0, r1.w0, 1
lsl r1.w0, r1.w0, 6
add r1.w0, r1.w0, r1.w2
// load the default control bit map
lbco r2.b0, PAMEM_CONST_PORTCFG, r1.w0, 1
l_c1Parse14_DFR_MC:
//Is it a multicast packet
qbbc l_c1Parse14_DFR_BC, s_pktCxt.flags.t_flag_multicast
//multicast packet
qbbc l_c1Parse14, r2.b0.t_default_route_mc_enable
qbbc l_c1Parse14, r2.b0.t_default_route_mc_pre_classify_enable
jmp l_c1Parse14_DFR_end
l_c1Parse14_DFR_BC:
//Is it a broadcast packet
qbbc l_c1Parse14, s_pktCxt.flags.t_flag_broadcast
//broadcast packet
qbbc l_c1Parse14, r2.b0.t_default_route_bc_enable
qbbc l_c1Parse14, r2.b0.t_default_route_bc_pre_classify_enable
l_c1Parse14_DFR_end:
mov s_param.action, SUBS_ACTION_FWPKT5
// pass through
#endif
#else
// Restore the stratOffset
mov s_pktCxt.startOffset, r28.b0
#endif
fci_c1Parse14:
l_c1Parse14:
// Restore the latest extended Packet Info
xin XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
wbs s_flags.info.tStatus_CDEOutPacket
mov s_pktCxt.paCmdId_Length, (SIZE(s_pktCxt) + 7) & 0xf8 // round up to a multiple of 8 bytes
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
// Packet is ready for lookup
qbne l_c1Parse16, s_param.action, SUBS_ACTION_LOOKUP
// Hold the packet
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_ADVANCE
mov s_cdeCmdPkt.optionsFlag, CDE_FLG_HOLD_PACKET
//xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
l_c1Parse14_1:
fci_c1Parse14_1:
#ifndef PASS_LAST_PDSP
// TBD: packet could be too small to trigger the output ready flag.
// wbs s_flags.info.tStatus_CDEOutPacket
wbc s_flags.info.tStatus_CDEBusy
lbco r1.w0, cCdeOutPkt, OFFSET(s_pktDescr.pktflags), 2
set r1.w0.t_pktBypass
sbco r1.w0, cCdeOutPkt, OFFSET(s_pktDescr.pktflags), 2
#endif
fci_c1Parse14_2:
l_c1Parse14_2:
set s_runCxt.flags.t_held_packet
qbbs l_c1Parse15, s_runCxt.flags.t_previous_held
// No previous lookup is active
qbbs l_c1Parse15_1, s_runCxt.flags.t_previous_skip
// Issue new lookup
set s_runCxt.flags.t_previous_held
// Move ext Packet Header to PFIFO_B
xout XID_PINFO_B, s_pktExtDescr, SIZE(s_pktExtDescr)
// Issue packet held command
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
// Clear packet held
clr s_runCxt.flags.t_held_packet
//mov s_l1Cmd.careFlags, s_runCxt.keyFlags
mov s_l1Cmd.operation, LUT1_CMD_SEARCH
//Wait for LUT1 add/delete to be completed in case there is one pending
wbc s_flags.info.tStatus_Lut1Busy
xout XID_LUT1CMD, s_l1Cmd, SIZE(s_l1Cmd)
jmp fci_mainLoop6
l_c1Parse15:
// There is an active lookup pending
// The extended Header of the active lookup packet is at FIFO_B
xout XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
or s_cdeCmdPkt.optionsFlag, s_cdeCmdPkt.optionsFlag, CDE_FLG_HOLD_PACKET
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
jmp fci_mainLoop6
l_c1Parse15_1:
// Skip packet: Forward or drop the packet
clr s_runCxt.flags.t_previous_skip
clr s_runCxt.flags.t_held_packet
#ifdef PASS_LAST_PDSP
// TBD: clear Bypass Flag
lbco s_pktDescr.pktFlags, cCdeOutPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
clr s_pktDescr.pktFlags.t_pktBypass
sbco s_pktDescr.pktFlags, cCdeOutPkt, OFFSET(s_pktDescr.pktFlags), SIZE(s_pktDescr.pktFlags)
qbbc l_c1Parse15_2, s_pktExtDescr.flags.fDroppedInd
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_FLUSH
set s_pktExtDescr.flags.fDropped
//clr s_pktExtDescr.flags.fDroppedInd
#endif
l_c1Parse15_2:
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, SIZE(s_cdeCmdPkt)
jmp fci_mainLoop6
l_c1Parse16:
// Handle all cases where lookup is not required
set s_runCxt.flags.t_previous_skip
// No lookup is required, see whether we should discard the packet
qbeq l_c1Parse18, s_param.action, SUBS_ACTION_DISCARD
// No lookup is required, see whether it is next fail route
qbbc l_c1Parse17, s_runCxt.flags.t_failLookup
clr s_runCxt.flags.t_failLookup
#ifndef PASS_PROC_FIREWALL
jmp f_nextFailPktForward
#else
// Should never reach here during EOAM, fire EOAM exceptions
jmp f_c1ForwardFirewallPktNoMatch
#endif
l_c1Parse17:
qbeq l_c1Parse17_1, s_param.action, SUBS_ACTION_FWPKT
qbeq l_c1Parse17_2, s_param.action, SUBS_ACTION_FWPKT2
qbeq l_c1Parse17_3, s_param.action, SUBS_ACTION_FWPKT3
qbeq l_c1Parse17_4, s_param.action, SUBS_ACTION_FWPKT4
#ifdef PASS_PROC_DEF_ROUTE
qbeq f_BcMcCurrentPktForward, s_param.action, SUBS_ACTION_FWPKT5
#endif
// It is an error packet.
// Forward the packet based on the exception index, which must be loaded into r30.w2
// Error Packet Handling
lsr r30.w2, s_pktCxt.eId_portNum_nextHdr.b1, PKT_EIDX_SHIFT
jmp f_errCurrentPktForward
l_c1Parse17_1:
// It is a normal packet (IP forwarding)
// Forward packet now
ldi s_cdeCmd.v0.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_pktExtDescr.threadId, THREADID_CDMA0
jmp l_c1Parse14_1
l_c1Parse17_2:
// It is a normal packet to be processed at the next stage
// Forward packet now
ldi s_cdeCmd.v0.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_pktExtDescr.threadId, THREADID_CDMA0
jmp l_c1Parse14_2
l_c1Parse17_3:
// It is a L4 packet to be processed at Ingress4
// Forward packet now
ldi s_cdeCmd.v0.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_pktExtDescr.threadId, THREADID_INGRESS4
jmp l_c1Parse14_1
l_c1Parse17_4:
// It is a L3 packet to be processed at Ingress3
// Forward packet now
ldi s_cdeCmd.v0.w0, CDE_CMD_PACKET_ADVANCE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_pktExtDescr.threadId, THREADID_INGRESS3
jmp l_c1Parse14_1
l_c1Parse18:
// Discard this packet
set s_pktExtDescr.flags.fDroppedInd
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_ADVANCE
mov s_cdeCmdPkt.optionsFlag, 0
jmp l_c1Parse14_1
.leave lut1Scope
.leave pktScope
.leave cdeScope
.leave checkScope
.leave pktCaptureScope
// ******************************************************************************************************
// * FUNCTION PURPOSE: Standard routing of the pre-classified BC/MC packet
// ******************************************************************************************************
// * DESCRIPTION: The current BC/MC packet is routed baed on default route
// *
// * Register Usage:
// *
// * R0:
// * R1:
// * R2:
// * R3: | discard stat mask for classify1
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: | Forwarding info
// * R8: |
// * R9: |
// * R10:
// * R11:
// * R12:
// * R13:
// * R14:
// * R15:
// * R16:
// * R17:
// * R18:
// * R19:
// * R20:
// * R21:
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: | w0(scratch) - Packet ID
// * R27: |
// * R28: statistics (s_statsFlags) -
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-Exception Index w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ******************************************************************************************************
#ifdef PASS_PROC_DEF_ROUTE
.using currentFwdScope
.using pktScope
f_BcMcCurrentPktForward:
// We will not enter this function unless default route and pre-classification is enabled
// Update r1 with offset for interface (get to zero base)
lsr r1.w0, s_pktCxt.eId_portNum_nextHdr, PKT_EMACPORT_SHIFT
and r1.w0, r1.w0, PKT_EMACPORT_MASK
mov r1.w2, OFFSET_DEFAULT_ROUTE_CFG_BASE
sub r1.w0, r1.w0, 1
lsl r1.w0, r1.w0, 6
add r1.w0, r1.w0, r1.w2
l_BcMcCurrentPktForward_MC:
//Is it a multicast packet
qbbc l_BcMcCurrentPktForward_BC, s_pktCxt.flags.t_flag_multicast
add r1.w0, r1.w0, 4
jmp l_BcMcCurrentPktForward_end
l_BcMcCurrentPktForward_BC:
// If it is not multicast, then it must be broadcast
add r1.w0, r1.w0, 4 + SIZE(struct_paFwdPlace)
// jmp l_BcMcCurrentPktForward_end
// pass throiugh
l_BcMcCurrentPktForward_end:
// Load the packet routing information
lbco s_curFmPlace, PAMEM_CONST_PORTCFG, r1.w0, SIZE(struct_paFwdPlace)
// Need a return address
mov r30.w0, fci_c1Parse14_1
jmp f_c1CurPktForward
.leave currentFwdScope
.leave pktScope
#endif
#ifdef PASS_PROC_EOAM
// **************************************************************************************************
// * FUNCTION PURPOSE: Forward a packet that had a match/nomatch in the EOAM LUT1 search
// **************************************************************************************************
// * DESCRIPTION: On entry r5 contains the LUT1 status, which indicated a match for the
// * held packet, and the match index value. The packet is forwarded as required.
// *
// * Register Usage:
// *
// * R0:
// * R1: scratch
// * R2: scratch
// * R3:
// * R4:
// * R5: LUT1 Status (s_l1Status) / LUT1 Command (s_l1Cmd) - lut1Scope
// * R6: | packet capture info (L2 PDSP only)
// * R7: |
// * R8: LUT1 info (s_l1f) -
// * R9: | -
// * R10: | Forward match Info (valid at function exit) - lut1MatchSCope
// * R11: | -
// * R12: | -
// * R13:
// * R14: |
// * R15: | Extended Header Info
// * R16: |
// * R17: |
// * R18: |
// * R19: | usrStats FIFO CB
// * R20: | usrStats Request
// * R21:
// * R22:
// * R23:
// * R24:
// * R25:
// * R26:
// * R27:
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-unused w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *
// **************************************************************************************************/
.using lut1Scope
.using lut1MatchScope
.using pktScope // Used only for sizing
.using cdeScope
.using usrStatsFifoScope
f_c1ForwardHeldEoamPktMatch:
lsl r1.w0, s_l1Status.index, 6 // l1 index * 256
// Load the routing info associated with LUT1
// This is the l1Info and match routing information
lbco &s_l1f, PAMEM_CONST_PDSP_LUT1_INFO, r1.w0, SIZE(s_l1f)+SIZE(s_fmPlace) // l1Info + routing info
// Check whether the packet has Ethertype 0x8902 packet
qbbc l_stdHeldPktEoamForward2,s_pktCxt6.eoamFlags.t_flag_eType8902
// target flow matched and it is 802.1ag packet
// check if we need to force disable statistics counts
// Statistics Updates here as per MEG level and Packet Opcodes
// Do not check if we need to disable the statistics (do it when the version is corrupted)
qbbs l_stdHeldPktEoamForward2, s_pktCxt6.eoamFlags.t_flag_invalidVer
qbgt l_stdHeldPktMatchEoamForward1_1, s_matchForward_eoam.megLevel, s_pktCxt6.megLevel
qblt l_stdHeldPktMatchEoamForward1_0, s_matchForward_eoam.megLevel, s_pktCxt6.megLevel
qbeq l_stdHeldPktMatchEoamForward1_1, s_pktCxt6.opCode, PA_EOAM_APS_LINEAR_OPCODE
qbeq l_stdHeldPktMatchEoamForward1_1, s_pktCxt6.opCode, PA_EOAM_APS_RING_OPCODE
qbeq l_stdHeldPktMatchEoamForward1_1, s_pktCxt6.opCode, PA_EOAM_CCM_OPCODE
l_stdHeldPktMatchEoamForward1_0:
// force disable the statistics
set s_pktCxt6.eoamFlags.t_flag_fDisableCnt
l_stdHeldPktMatchEoamForward1_1:
qbbc l_stdHeldPktEoamForward2, s_pktCxt6.eoamFlags.t_flag_knownOpcodes
// Known EOAM control packet, forward to queue
// Normal host route: no special operation is required
// Send the packet on its way
// Free the packet Ext Info
mov s_pktExtDescr.threadId, THREADID_CDMA0
ldi r1.w0, CDE_FLG_SET_FLOWID << 8
// Patch swinfo0 with the context
sbco s_matchForward_eoam.context, cCdeHeldPkt, OFFSET(s_pktDescr.swinfo0), SIZE(s_pktDescr.swinfo0)
// patch the flow Id and queue Id
sbco s_matchForward.flowId, cCdeHeldPkt, OFFSET(s_pktDescr.flowIdx), SIZE(s_pktDescr.flowIdx)
sbco s_matchForward.queue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
// Clear packet drop indicator if any (Override previous stage)
clr s_pktExtDescr.flags.fDroppedInd
// Unknown EOAM type found OR non EOAM packet
l_stdHeldPktEoamForward2:
// Honor the previous stage (MAC) decision if it is not EOAM control packet meant to send to host
qbbs l_stdHeldEoamPktDiscard, s_pktExtDescr.flags.fDroppedInd
ldi r4.w0, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
or r4.w0, r4.w0, r1.w0
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
// Check if we need to record the statistics
qbbs l_stdHeldPktEoamForward3_0, s_pktCxt6.eoamFlags.t_flag_fDisableCnt
// we need record
// User Statistics operation:
// Record and insert the statistics update into the FIFO
// Note all user commands are in the same location (r12)
// Read the target flow match count and update in the packet PS_INFO
qbbc l_stdHeldEoamPktForward2_0, s_pktCxt6.eoamFlags.t_flag_reportCount
// Load the eoam count patch command
lbco s_paUsrStatsCfg, PAMEM_CONST_CUSTOM, OFFSET_USR_STATS_CFG, SIZE(s_paUsrStatsCfg)
qble l_stdHeldPktMatchStatsRead_1, s_matchForward_eoam.statsIndex, s_paUsrStatsCfg.num64bCounters
// Error condition
// TBD: EOAM count is 4 bytes and hence is not 64bit count (8 bytes)
l_stdHeldPktMatchStatsRead_1:
lsl s_usrStatsReadCxt.cnt32Offset, s_paUsrStatsCfg.num64bCounters, 3
sub r1.w0, s_matchForward_eoam.statsIndex, s_paUsrStatsCfg.num64bCounters
lsl s_usrStatsReadCxt.cntOffset, r1.w0, 2
add s_usrStatsReadCxt.cntOffset, s_usrStatsReadCxt.cnt32Offset, s_usrStatsReadCxt.cntOffset
mov r1, PAMEM_USR_STATS_COUNTERS_LOC_GLOBAL
lbbo s_pktCxt6.count, r1, s_usrStatsReadCxt.cntOffset, 4
// Compensate for this packet
add s_pktCxt6.count, s_pktCxt6.count, 1
sbco s_pktCxt6.count, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt6.count), 4
l_stdHeldEoamPktForward2_0:
mov s_usrStatsReq.index, s_matchForward_eoam.statsIndex
mov s_usrStatsReq.pktSize, s_pktCxt.endOffset
lbco s_fifoCb, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB, SIZE(s_fifoCb)
add r1.b0, s_fifoCb.in, 4
and r1.b0, r1.b0, 0x1F
qbne l_stdHeldEoamPktForward2_1, s_fifoCb.out, r1.b0
// FIFO is full, bump the system error
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_SYSTEM_FAIL
// Skip insert the request
jmp fci_stdHeldPktEoamForward3
l_stdHeldEoamPktForward2_1:
// Insert the request into the FIFO
add r1.w2, s_fifoCb.in, OFFSET_PDSP_USR_STATS_FIFO
sbco s_usrStatsReq, PAMEM_CONST_USR_STATS_FIFO_BASE, r1.w2, SIZE(s_usrStatsReq)
sbco r1.b0, PAMEM_CONST_USR_STATS_FIFO_BASE, OFFSET_PDSP_USR_STATS_FIFO_CB + OFFSET(s_fifoCb.in), SIZE(s_fifoCb.in)
l_stdHeldPktEoamForward3_0:
// No need to check further as the match happened for a known EOAM packet, that needs forwarding to a queue, after stats update
qbbs l_stdHeldEoamPktForward4, s_pktCxt6.eoamFlags.t_flag_knownOpcodes
// OR No Match
fci_stdHeldPktEoamForward3:
// Check whether it is a cipher packet
qbbc l_stdHeldPktEoamForward5, s_pktCxt6.eoamFlags.t_flag_cipherPkt
// Cipher packet found
// Route to RA
qbbs l_stdHeldEoamPktForward3_1, s_runCxt.flag2.t_raEn
// Send the packet on its way
// Free the packet Ext Info
// mov s_pktExtDescr.threadId, s_matchForward_pa.dest
// Load flags and operation in one instruction
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_PSINFO) << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
jmp l_stdHeldEoamPktForward4
l_stdHeldEoamPktForward3_1:
// Increment the System stats for RA fragmentations, if found (Only during Ingress1 traffic)
qbbc l_stdHeldEoamPktNoFrag, s_pktCxt6.eoamFlags.t_flag_fragFound
mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_IP_FRAG
l_stdHeldEoamPktNoFrag:
// Send the packet on its way to RA
qbbs l_stdHeldEoamPktForward3_set_ra_dest_1, s_runCxt.flag2.t_raUseLocDMA
// use global DMA
mov s_pktExtDescr.threadId, THREADID_CDMA0
mov s_cdeCmdPkt.destQueue, PASS_RA_QUEUE
jmp l_stdHeldEoamPktForward3_set_ra_dest_end
l_stdHeldEoamPktForward3_set_ra_dest_1:
// use local DMA
mov s_pktExtDescr.threadId, THREADID_CDMA1
mov s_cdeCmdPkt.destQueue, PASS_RA_LOC_QUEUE
// pass through
l_stdHeldEoamPktForward3_set_ra_dest_end:
// Free the packet Ext Info
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_PSINFO) << 8)
sbco s_cdeCmdPkt.destQueue, cCdeHeldPkt, OFFSET(s_pktDescr.destQ), SIZE(s_pktDescr.destQ)
// mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_cdeCmdPkt.psInfoSize, 32
mov s_cdeCmdPkt.flowId, s_runCxt.raFlow
l_stdHeldEoamPktForward4:
// Clear Word2 flags in pktCxt, if there is no target match OR unknown opcode list
zero &s_pktCxt6.eoamFlags, 2
sbco s_pktCxt6.megLevel, cCdeHeldPkt, SIZE(s_pktDescr)+OFFSET(s_pktCxt6.megLevel), 4
xout XID_PINFO_DST, s_pktExtDescr, SIZE(s_pktExtDescr)
xout XID_CDECTRL, s_cdeCmdPkt, SIZE( s_cdeCmdPkt)
ret
l_stdHeldPktEoamForward5:
// Free the packet Ext Info
// CDE workaround: do not use CDE_FLG_SET_DESTQUEUE
//ldi r4, CDE_CMD_HPKT_RELEASE | ((CDE_FLG_SET_FLOWID | CDE_FLG_SET_DESTQUEUE | CDE_FLG_SET_PSINFO) << 8)
ldi r4, CDE_CMD_HPKT_RELEASE | (CDE_FLG_SET_PSINFO << 8)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
// Check if the next stage is Ingress1 Othrewise no action
qbne l_stdHeldEoamPktForward4, s_pktExtDescr.threadId, PA_DEST_INGRESS1
qbbc l_stdHeldEoamPktForward4, s_pktCxt6.eoamFlags.t_flag_ip
// Ip packet found
// Update next route to Ingress 3 for Outer IP/UDP Parse
mov s_pktExtDescr.threadId, PA_DEST_INGRESS3
jmp l_stdHeldEoamPktForward4
f_c1ForwardHeldEoamPktNoMatch:
// Do a silent discard, release the packet, if previous stage set it as discard
qbbc fci_stdHeldPktEoamForward3, s_pktExtDescr.flags.fDroppedInd
l_stdHeldEoamPktDiscard:
// mov s_stats.value, PA_STATS_UPDATE_REQ | PA_STATS_C1_DISCARD
ldi s_cdeCmd.v0, CDE_CMD_HPKT_DISCARD
set s_pktExtDescr.flags.fDropped
jmp l_stdHeldEoamPktForward4
.leave usrStatsFifoScope
.leave pktScope // Used only for sizing
.leave lut1MatchScope
.leave lut1Scope
.leave cdeScope
#endif
.using startScope
.using initScope
// .assign struct_timeAccConstants, r3, r5, s_accConst
f_c1LocalInit:
// Clear the LUT table of all 256 entries
.using lut1Scope
mov r3, 0
l_c1LocalInitD:
loop l_c1LocalInitC, 256
// Wait for LUT free
wbc s_flags.info.tStatus_Lut1Busy
mov s_l1Cmd.index, r3
mov s_l1Cmd.operation, LUT1_CMD_REMOVEM
xout XID_LUT1CMD, s_l1Cmd, SIZE(s_l1Cmd)
add r3, r3, 1
.leave lut1Scope
l_c1LocalInitC:
// Initialize memory used only by this pdsp
// The lut1 associated memory. There are 256 entries, each of which is
// 36 bytes, organized as follows:
//
// Byte offset byte size description
// 0 4 l1Info
// 4 16 paForward for matches
// 20 16 paForward for previous matches
zero &r3, 36 // zeros r3 - r11
mov s_paForward.forwardType, PA_FORWARD_TYPE_DISCARD // default successful route
mov s_paForward2.forwardType, PA_FORWARD_TYPE_DISCARD // default failure route
// r2.w0 = 0x4000, r2.w2 = 0
mov r2, 256*64
#ifdef PASS_TIMESTAMP_OP
sbco r3, PAMEM_CONST_RO_TIME_ACC_TABLE, OFFSET_RO_TIME_ACC_CONSTANTS, 12
#endif
#ifdef PASS_PROC_FIREWALL
sbco r3, PAMEM_CONST_RESCORE_HDR, OFFSET_RESCORE_HDR, 4
// No need to clear the big 1k block of rescore data as it is not valid when header info is zero
#endif
c1LocalInit_0:
sbco s_l1Info, PAMEM_CONST_PDSP_LUT1_INFO, r2.w2, 36
add r2.w2, r2.w2, 64
qbne c1LocalInit_0, r2.w2, r2.w0
// Clear the bitmask the indicates which LUT1 entries are valid
zero &s_l1Map, SIZE(s_l1Map) + SIZE(s_l1Map2) // also redundant, but this is init code so be safe
#ifdef PASS_FIREWALL_BUG_WORKAROUND
// Disable all even entries to workaround the LUT1 automatic score bug
mov s_l1Map.validEntries0, 0x55555555
mov s_l1Map.validEntries1, 0x55555555
mov s_l1Map.validEntries2, 0x55555555
mov s_l1Map.validEntries3, 0x55555555
mov s_l1Map.validEntries4, 0x55555555
mov s_l1Map.validEntries5, 0x55555555
mov s_l1Map.validEntries6, 0x55555555
mov s_l1Map.validEntries7, 0x55555555
#endif
sbco s_l1Map, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_MAP, SIZE(s_l1Map) + SIZE(s_l1Map2)
// Clear the pending configuration enable
zero &s_l1PendCmd, SIZE(s_l1PendCmd)
sbco s_l1PendCmd, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_PENDING, SIZE(s_l1PendCmd)
// Initialize the call table. Each PDSP with a LUT1 will do this, but they will
// each write the same values
// TBD: Add compiler switch to initialize this at first PDSP only
// May need different table for different PDSP
// For example, MAC related entries is not supported by L3/L4 PDSP
mov s_headerParse.c1ParseMac, f_c1ParseMac
mov s_headerParse.c1ParseVlan, f_c1ParseVlan
mov s_headerParse.c1ParseMpls, f_c1ParseMpls
mov s_headerParse.c1ParseIpv4, f_c1ParseIpv4
mov s_headerParse.c1ParseIpv6, f_c1ParseIpv6
mov s_headerParse.c1ParseIpv6ExtHop, f_c1ParseIpv6ExtHop
mov s_headerParse.c1ParseIpv6ExtRoute, f_c1ParseIpv6ExtRoute
mov s_headerParse.c1ParseIpv6ExtFrag, f_c1ParseIpv6ExtFrag
mov s_headerParse.c1ParseIpv6ExtDestOpt, f_c1ParseIpv6ExtDestOpt
mov s_headerParse.c1ParseGre, f_c1ParseGre
mov s_headerParse.c1ParseEsp, f_c1ParseEsp
mov s_headerParse.c1parseEspDec, f_c1ParseEspDec
mov s_headerParse.c1ParseAuth, f_c1ParseAuth
mov s_headerParse.c1ParseCustom, f_c1ParseCustom
mov s_headerParse.c1ParsePPPoE, f_c1ParsePPPoE
mov s_headerParse.c1ParseSctp, f_c1ParseSctp
mov s_headerParse.c1ParseUnkn, f_c1ParseUnkn
mov s_headerParse.c2ParseUdp, f_c1ParseUdp
mov s_headerParse.c2ParseUdpLite, f_c1ParseUdpLite
mov s_headerParse.c2ParseTcp, f_c1ParseTcp
sbco s_headerParse.c1ParseMac, PAMEM_CONST_PARSE, 0, SIZE(s_headerParse)
#ifdef PASS_PROC_L2_PARSE
// Ethertypes table
mov s_ethertypes.vlan, ETH_TAG_VLAN
mov s_ethertypes.spVlan, ETH_TAG_SP_OUTER_VLAN
mov s_ethertypes.ip, ETH_TYPE_IP
mov s_ethertypes.ipv6, ETH_TYPE_IPV6
mov s_ethertypes.mpls, ETH_TYPE_MPLS
mov s_ethertypes.mplsMulti, ETH_TYPE_MPLS_MULTI
mov s_ethertypes.PPPoE, ETH_TYPE_PPPoE_SESSION
mov s_ethertypes.PPPoE_discov, ETH_TYPE_PPPoE_DISCOVER
sbco &s_ethertypes, PAMEM_CONST_PARSE, OFFSET_ETYPE_TABLE, SIZE(s_ethertypes)
#endif
// IP protocol table
// Each entry in the table is of the form:
// /--------------------------------------------\
// | 7 6 | 5 0 |
// +-----------+--------------------------------+
// | action | internal header id |
// \--------------------------------------------/
//
// The default header type is <unknown>
// The default action is lookup
mov r4.w0, (((SUBS_ACTION_LOOKUP << 6) | PA_HDR_UNKNOWN) << 8) | ((SUBS_ACTION_LOOKUP << 6) | PA_HDR_UNKNOWN)
mov r4.w2, r4.w0
mov r5, r4
mov r6, r4
mov r7, r4
mov r8, r4
mov r9, r4
mov r10, r4
mov r11, r4
sbco r4, PAMEM_CONST_IP_PROTO, 0, 32
sbco r4, PAMEM_CONST_IP_PROTO, 32, 32
sbco r4, PAMEM_CONST_IP_PROTO, 64, 32
sbco r4, PAMEM_CONST_IP_PROTO, 96, 32
sbco r4, PAMEM_CONST_IP_PROTO, 128, 32
sbco r4, PAMEM_CONST_IP_PROTO, 160, 32
sbco r4, PAMEM_CONST_IP_PROTO, 192, 32
sbco r4, PAMEM_CONST_IP_PROTO, 224, 32
// Protocol type 4: IP over IP
mov r4.b0, (SUBS_ACTION_LOOKUP << 6) | PA_HDR_IPv4
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IP_IN_IP, 1
// Protocol type 41: IPv6 over IP
mov r4.b0, (SUBS_ACTION_LOOKUP << 6) | PA_HDR_IPv6
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IPV6_IN_IPV4, 1
// Protocol type 50: ESP
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_ESP
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_ESP, 1
// Protocol type 51: AH
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_AUTH
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_AUTH, 1
// Protocol type 47: GRE
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_GRE
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_GRE, 1
// Protocol type 6: TCP
#ifndef PASS_PROC_FIREWALL
mov r4.b0, (SUBS_ACTION_LOOKUP << 6) | PA_HDR_TCP
#else
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_TCP
#endif
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_TCP, 1
// Protocol tpye 0: IPv6 hop by hop
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_IPv6_EXT_HOP
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IPV6_HOP_BY_HOP, 1
// Protocol type 43: IPv6 routing header
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_IPv6_EXT_ROUTE
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IPV6_ROUTE, 1
// Protocol type 44: IPv6 fragmentation header
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_IPv6_EXT_FRAG
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IPV6_FRAG, 1
// Protocol type 59: IPv6 no next header - uses default action
// Protocol type 60: IPv6 destination options
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_IPv6_EXT_DEST
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_IPV6_DEST_OPT, 1
// Protocol type 17: UDP
#ifndef PASS_PROC_FIREWALL
mov r4.b0, (SUBS_ACTION_LOOKUP << 6) | PA_HDR_UDP
#else
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_UDP
#endif
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_UDP, 1
// Protocol type 136: UDP lite
#ifndef PASS_PROC_FIREWALL
mov r4.b0, (SUBS_ACTION_LOOKUP << 6) | PA_HDR_UDP_LITE
#else
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_UDP_LITE
#endif
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_UDP_LITE, 1
// Protocol type 132: SCTP
mov r4.b0, (SUBS_ACTION_PARSE << 6) | PA_HDR_SCTP
sbco r4.b0, PAMEM_CONST_IP_PROTO, IP_PROTO_NEXT_SCTP, 1
#ifdef PASS_FIRST_PDSP
// Initialize the next Fail Route base table (4 * 8 = 32 byte)
mov32 s_nextFailRouteBase.pdsp0, PAMEM_NFAIL_BASE_ADDR_PDSP0
mov32 s_nextFailRouteBase.pdsp1, PAMEM_NFAIL_BASE_ADDR_PDSP1
mov32 s_nextFailRouteBase.pdsp2, PAMEM_NFAIL_BASE_ADDR_PDSP2
mov32 s_nextFailRouteBase.pdsp3, PAMEM_NFAIL_BASE_ADDR_PDSP3
mov32 s_nextFailRouteBase.pdsp4, PAMEM_NFAIL_BASE_ADDR_PDSP4
mov32 s_nextFailRouteBase.pdsp5, PAMEM_NFAIL_BASE_ADDR_PDSP5
mov32 s_nextFailRouteBase.pdsp6, PAMEM_NFAIL_BASE_ADDR_PDSP6
mov32 s_nextFailRouteBase.pdsp7, PAMEM_NFAIL_BASE_ADDR_PDSP7
sbco s_nextFailRouteBase.pdsp0, PAMEM_CONST_NFAIL_BASE, 0, SIZE(s_nextFailRouteBase)
#endif
// clear event flag by deafult
//zero &s_eventFlags, SIZE(s_eventFlags)
// Verify the PDSP ID
// TBD: Add compiler switch
//lbco r0.b0, PAMEM_CONST_PDSP_INFO, OFFSET_ID, 1
//qbeq c1LocalInit_1, r0.b0, 0
#ifdef PASS_PROC_IP_REASSEM
.using ipScope
// Clear IP reassembly context
// TBD: Add compiler switch (only two PDSPs need to do this)
zero &s_ipReassmCxt, OFFSET(s_ipReassmCxt.tfMapTemp)
sbco s_ipReassmCxt, PAMEM_CONST_IP_REASSEM_CONTEXT, 0, OFFSET(s_ipReassmCxt.tfMapTemp)
.leave ipScope
#endif
c1LocalInit_1:
ret
.leave initScope
.leave startScope
// *******************************************************************************************************
// * FUNCTION PURPOSE: An entry is deleted from LUT1
// *******************************************************************************************************
// * DESCRIPTION: An entry is disabled from the LUT
// * On Entry:
// * - r0.w0 contains the length of the data packet
// * - paCmd1 has the command header
// * - The CDE points to the start of the command header
// *
// * Register Usage:
// *
// * R0: w0 - length of the packet
// * R1:
// * R2:
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: |
// * R8: |
// * R9: | LUT1 View - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: | (packet extended descriptor)
// * R15: |
// * R16: |
// * R17: | LUT1 View - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *******************************************************************************************************
.using lut1Scope
.using cdeScope
.using configScope
.using pktScope
f_paComDelLut1:
xin XID_CDEDATA, s_paDelL1, SIZE(s_paDelL1)
mov r0.w2, PA_LUT1_INDEX_LAST_FREE
qbge l_paComDelLut1_0, s_paDelL1.index, r0.w2
mov s_pktCxt2.commandResult, PA_COMMAND_RESULT_LUT1_INDEX_INVALID
set s_pktCxt2.ctrlFlag.t_cmdResultPatch
clr s_pktCxt2.ctrlFlag.t_cmdContinue
jmp f_cfgReply
l_paComDelLut1_0:
// derive the LUT1 utilization map
lsr r1.b1, s_paDelL1.index, 5
lsl r1.w2, r1.b1, 2
add r1.w2, r1.w2, PDSP_CXT_OFFSET_L1_MAP
lbco r2, PAMEM_CONST_PDSP_CXT, r1.w2, 4
and r3.b0, s_paDelL1.index, 0x1F
// Read in the allocated index bitmap snd clear the corresponding bits
// Its not an error to disable an already disabled entry
lbco r1.b0, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_MAP2, 1
clr r2, r3.b0
sbco r2, PAMEM_CONST_PDSP_CXT, r1.w2, 4
clr r1.b0, r1.b1
sbco r1.b0, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_MAP2, 1
l_paComDelLut1_1:
// Disable all the routing info
zero &s_paAddL1f, SIZE(s_paAddL1f)+SIZE(s_paFwdMatchPlace)+SIZE(s_paFwdNextFailPlace)
mov s_paFwdA.forwardType, PA_FORWARD_TYPE_DISCARD
mov s_paFwdB.forwardType, PA_FORWARD_TYPE_DISCARD
mov s_paFwdA.flowId, 0xde // Indicate that this entry has been deleted
// Store the deleted forward table
lsl r0.w0, s_paDelL1.index, 6 // The offset to this table entry
sbco s_paAddL1f, PAMEM_CONST_PDSP_LUT1_INFO, r0.w0, SIZE(s_paAddL1f)+(2*SIZE(s_paFwdMatchPlace))
mov s_l1PendCmdS.operation, LUT1_CMD_REMOVEM
mov s_l1PendCmdS.index, s_paDelL1.index
mov s_l1PendCmdS.flags, 0
// see whether an active search is in progress, need to wait for it to be completed
qbbs l_paComDelLut1_2, s_runCxt.flags.t_previous_held
// wait for previous add/delete to be complete
wbc s_flags.info.tStatus_Lut1Busy
// If the LUT is free do the deletion
xout XID_LUT1CMD, s_l1PendCmdS, SIZE(s_l1PendCmdS)
jmp f_cfgReply
l_paComDelLut1_2:
// If the LUT is busy save the disable info
sbco s_l1PendCmdS, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_PENDING, SIZE(s_l1PendCmdS)
set s_runCxt.flags.t_pendingConfig
jmp f_cfgReply
.leave lut1Scope
.leave cdeScope
.leave configScope
.leave pktScope
#include "pacfgcmn.p"
// ********************************************************************************************************
// * FUNCTION PURPOSE: An add/del to LUT2 command was sent to a PDSP without a LUT2. An error is returned
// ********************************************************************************************************
// * DESCRIPTION:
// *
// * Register Usage:
// *
// * R0: w0 - the packet length (input)
// * R1:
// * R2:
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: |
// * R8: |
// * R9: | LUT1 View - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: | (packet extended descriptor)
// * R15: |
// * R16: |
// * R17: | LUT1 View - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ********************************************************************************************************
.using configScope
.using cdeScope
f_paComAddRepLut2:
f_paComDelLut2:
mov s_paCmd1.commandResult, PA_COMMAND_RESULT_INVALID_DESTINATION
xout XID_CDEDATA, s_paCmd1.commandResult, SIZE(s_paCmd1.commandResult)
jmp f_cfgReply
.leave configScope
.leave cdeScope
// *********************************************************************************************
// * FUNCTION PURPOSE: Add an entry to LUT1
// *********************************************************************************************
// * DESCRIPTION: The new entry is loaded. It will not be activated if the LUT is busy
// *
// * On Entry:
// * - r0.w0 contains the length of the data packet
// * - paCmd1 has the command header
// * - The CDE points to the start of the command header
// *
// * Register Usage:
// *
// * R0: w2 - PA_LUT1_INDEX_LAST_FREE, w0 - the packet length (entry)
// * R1: |
// * R2: | Scratch
// * R3: |
// * R4: | CDE commands - cdeScope | s_l1PendCmd
// * R5: | - |
// * R6: | | |
// * R7: | | s_paCmd1 (entry) |
// * R8: | | |
// * R9: | LUT1 View1 - lut1Scope |
// * R10: | | s_paAddL1Hdr
// * R11: | |
// * R12: |
// * R13: | | s_paAddL1f (s_paAddL1fAcl, s_paAddL1fVlink)
// * R14: | |
// * R15: | | Forward match info
// * R16: | |
// * R17: | LUT1 View2 - lut1Scope |
// * R18: | |
// * R19: | | Forward prev match info
// * R20: | |
// * R21: | |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *********************************************************************************************
.using lut1Scope
.using cdeScope
.using configScope
.using pktScope
f_paComAddRepLut1:
// Read the common header
xin XID_CDEDATA, s_paAddL1Hdr, SIZE(s_paAddL1Hdr)
// s_paAddL1f may be populated during the LUT1 configuration
zero &s_paAddL1f, SIZE(s_paAddL1f)
// Make sure the packet has all the data
mov r0.w2, SIZE(s_paAddL1Hdr)+(2*SIZE(s_paFwdMatchPlace)) + (SIZE(s_paAddL1Std1)*3) + SIZE(s_paAddL1Cmdhdr)
qble l_paComAddRepLut1_0, r0.w0, r0.w2
mov r0.b0, PA_COMMAND_RESULT_INVALID_PKT_SIZE
qbbc l_paComAddRepLut1_err, s_pktCxt2.ctrlFlag.t_cmdHdrMoved
jmp l_paComAddRepLut1_errPatch
l_paComAddRepLut1_0:
// Read in the allocated index bitmap
lbco r1.b0, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_MAP2, 1
#ifndef PASS_PROC_FIREWALL
// Get a free index if requested
mov r0.w2, PA_LUT1_INDEX_LAST_FREE
qbne l_paComAddRepLut1_3, s_paAddL1Hdr.index, r0.w2
#else
#ifdef PASS_PROC_EOAM
qbbc l_paComAddRepLut1Eoam, s_runCxt.flag3.t_eoamEn
// Get a free index if requested
mov r0.w2, PA_LUT1_INDEX_LAST_FREE
qbne l_paComAddRepLut1_3, s_paAddL1Hdr.index, r0.w2
jmp l_paComAddRepLut1_00
l_paComAddRepLut1Eoam:
#endif // PASS_PROC_EOAM
mov s_paAddL1fAcl.statsCmd, s_paAddL1Hdr.index
set s_paAddL1fAcl.statsCmd.t_stats_update_req
add s_paAddL1fAcl.statsCmd2, s_paAddL1fAcl.statsCmd, 1
set s_paAddL1fAcl.statsCmd2.t_stats_type_byte
#endif
l_paComAddRepLut1_00:
lmbd r1.b1, r1.b0, 0 // Find free MAP entry index
qbne l_paComAddRepLut1_1, r1.b1, 32
// No free entries
mov r0.b0, PA_COMMAND_RESULT_LUT1_INDEX_INVALID
qbbc l_paComAddRepLut1_err, s_pktCxt2.ctrlFlag.t_cmdHdrMoved
jmp l_paComAddRepLut1_errPatch
l_paComAddRepLut1_1:
lsl r1.w2, r1.b1, 2
add r1.w2, r1.w2, PDSP_CXT_OFFSET_L1_MAP
lbco r2, PAMEM_CONST_PDSP_CXT, r1.w2, 4
lmbd r3.b0, r2, 0 // Find free bit index at the MAP entry
qbne l_paComAddRepLut1_2, r3.b0, 32
// TBD: Error condition should never occur
mov r0.b0, PA_COMMAND_RESULT_LUT1_INDEX_INVALID
qbbc l_paComAddRepLut1_err, s_pktCxt2.ctrlFlag.t_cmdHdrMoved
jmp l_paComAddRepLut1_errPatch
l_paComAddRepLut1_2:
// Free entry found
lsl s_paAddL1Hdr.index, r1.b1, 5
add s_paAddL1Hdr.index, s_paAddL1Hdr.index, r3.b0
// Write back the index
xout XID_CDEDATA, s_paAddL1Hdr.index, SIZE(s_paAddL1Hdr.index)
jmp l_paComAddRepLut1_5
l_paComAddRepLut1_3:
// Verify the index is in range
qbgt l_paComAddRepLut1_4, s_paAddL1Hdr.index, r0.w2
mov r0.b0, PA_COMMAND_RESULT_LUT1_INDEX_INVALID
qbbc l_paComAddRepLut1_err, s_pktCxt2.ctrlFlag.t_cmdHdrMoved
jmp l_paComAddRepLut1_errPatch
l_paComAddRepLut1_4:
// derive the LUT1 utilization map
lsr r1.b1, s_paAddL1Hdr.index, 5
lsl r1.w2, r1.b1, 2
add r1.w2, r1.w2, PDSP_CXT_OFFSET_L1_MAP
lbco r2, PAMEM_CONST_PDSP_CXT, r1.w2, 4
and r3.b0, s_paAddL1Hdr.index, 0x1F
l_paComAddRepLut1_5:
// Scroll past the command headers
mov s_cdeCmdWd.operation, CDE_CMD_WINDOW_ADVANCE
mov s_cdeCmdWd.byteCount, SIZE(s_paCmd1)+SIZE(s_paAddL1Hdr)
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// TBD: can we use call here
jmp f_paComAddLut1Standard
fci_paComAddRepLut1_6:
// Update the LUT1 utilization maps
set r2, r3.b0
sbco r2, PAMEM_CONST_PDSP_CXT, r1.w2, 4
lmbd r3.b1, r2, 0
qbne l_paComAddRepLut1_7, r3.b1, 32
// this entry is full
set r1.b0, r1.b1
sbco r1.b0, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_MAP2, 1
l_paComAddRepLut1_7:
// The CDE is now pointing to the Packet forward information.
xin XID_CDEDATA, s_paFwdMatchPlace, 2*SIZE(s_paFwdMatchPlace)
// store all the info (l1Info + match info)
lsl r0.w0, s_paAddL1Hdr.index, 6 // The offset to this table entry
sbco s_paAddL1f, PAMEM_CONST_PDSP_LUT1_INFO, r0.w0, SIZE(s_paAddL1f)+(2*SIZE(s_paFwdMatchPlace))
qbbc l_paComAddRepLut1_7a, s_pktCxt2.ctrlFlag.t_cmdContinue
// Need to patch the next LUT1 configuration command of the physical link (srcVC)
// Note: support multiple LUT1 command only, enhancement is required for more flexible multiple command opeartion
mov s_cdeCmdWd.byteCount, 2*SIZE(s_paFwdMatchPlace)+SIZE(s_paCmdHdr)+SIZE(s_paAddL1Hdr)+SIZE(s_paAddL1Std1)*2
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
xin XID_CDEDATA, s_l1View3cIpsec.srcVC, SIZE(s_l1View3cIpsec.srcVC)
add s_l1View3cIpsec.srcVC, s_l1View3cIpsec.srcVC, s_paAddL1Hdr.index
xout XID_CDEDATA, s_l1View3cIpsec.srcVC, SIZE(s_l1View3cIpsec.srcVC)
l_paComAddRepLut1_7a:
#ifdef TO_BE_DELETE
#ifndef PASS_PROC_FIREWALL
mov s_l1PendCmd.operation, LUT1_CMD_INSERTM
#else
mov s_l1PendCmd.operation, LUT1_CMD_INSERT
#ifdef PASS_PROC_EOAM
// Overwrite the information for IN0PDSP1, when EOAM is enabled
qbbc l_paComAddRepLut1_7b, s_runCxt.flag3.t_eoamEn
mov s_l1PendCmd.operation, LUT1_CMD_INSERTM
l_paComAddRepLut1_7b:
#endif
#endif
#endif
mov s_l1PendCmd.operation, LUT1_CMD_INSERTM
mov s_l1PendCmd.index, s_paAddL1Hdr.index
mov s_l1PendCmd.flags, 0
mvid *&s_l1PendCmd.bitMask, *&s_paAddL1Cmdhdr.bitMask
#ifdef PASS_PROC_FIREWALL
.using aclLut1RescoreScope
qbbs l_paComAddRepLut1_7b, s_runCxt.flag3.t_eoamEn
qbbc l_paComAddRepLut1_7b, s_paAddL1Hdr.vLinkNum.t_pa_acl_rescore_list_gen
// Set the bit in runtime context to indicate the rescore
set s_runCxt.flag3.t_trigRescoreProc
clr s_paAddL1Hdr.vLinkNum.t_pa_acl_rescore_list_gen
// Record the index found to the pending Lut1 index associated score,
// during rescore operations, if needed
qbbc l_paComAddRepLut1_7b, s_paAddL1Hdr.vLinkNum.t_pa_acl_rescore_pend_idx
clr s_paAddL1Hdr.vLinkNum.t_pa_acl_rescore_pend_idx
add r0, s_paAddL1Hdr.vLinkNum, OFFSET_RESCORE_DATA
sbco s_paAddL1Hdr.index, PAMEM_CONST_RESCORE_DATA, r0, SIZE(s_paAclRescoreData.index)
l_paComAddRepLut1_7b:
.leave aclLut1RescoreScope
#endif
// Complete the entry if there is no active search in progress, need to wait for it to be completed
qbbs l_paComAddRepLut1_8, s_runCxt.flags.t_previous_held
// wait for previous entry update to be completed
wbc s_flags.info.tStatus_Lut1Busy
xout XID_LUT1CMD, s_l1PendCmd, SIZE(s_l1PendCmd)
jmp f_cfgReply
l_paComAddRepLut1_8:
// The LUT was busy. Store the information in scratch until the LUT is free
// Note: PDSP will not process either packets or configuration util this one is completed
sbco s_l1PendCmd, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_PENDING, SIZE(s_l1PendCmd)
set s_runCxt.flags.t_pendingConfig
jmp f_cfgReply
l_paComAddRepLut1_errPatch:
mov s_pktCxt2.commandResult, r0.b0
set s_pktCxt2.ctrlFlag.t_cmdResultPatch
clr s_pktCxt2.ctrlFlag.t_cmdContinue
jmp f_cfgReply
l_paComAddRepLut1_err:
mov s_paCmd1.commandResult, r0.b0
xout XID_CDEDATA, s_paCmd1.commandResult, SIZE(s_paCmd1.commandResult)
clr s_pktCxt2.ctrlFlag.t_cmdContinue
jmp f_cfgReply
.leave lut1Scope
.leave cdeScope
.leave configScope
.leave pktScope
// ************************************************************************************
// * FUNCTION PURPOSE: Add a standard entry to LUT1
// ************************************************************************************
// * DESCRIPTION: The LUT1 fields are entered
// *
// * On Entry:
// * - r1,r2 has the bit map of used entry indicies
// * - r0.b2 has the udp custom port flag
// * - r0.w0 has the offset value to the command result flag
// * - The CDE points to the start of the standard entry data
// *
// * Register Usage:
// *
// * R0: w0 - offset to the command result value (for patching)
// * R1:
// * R2:
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: |
// * R7: |
// * R8: |
// * R9: | LUT1 View1 - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: |
// * R15: |
// * R16: |
// * R17: | LUT1 View2 - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ************************************************************************************/
.using configScope
.using cdeScope
.using lut1Scope
f_paComAddLut1Standard:
// LUT1V1 and LUT1V2
xin XID_CDEDATA, s_paAddL1Std1, SIZE(s_paAddL1Std1) + SIZE(s_paAddL1Std2)
xout XID_LUT1V1, s_paAddL1Std1, SIZE(s_paAddL1Std1)
xout XID_LUT1V2, s_paAddL1Std2, SIZE(s_paAddL1Std2)
mov s_cdeCmdWd.byteCount, SIZE(s_paAddL1Std1) + SIZE(s_paAddL1Std2)
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// LUT1V3
xin XID_CDEDATA, s_paAddL1Std3, SIZE(s_paAddL1Std3)
xout XID_LUT1V3, s_paAddL1Std3, SIZE(s_paAddL1Std3)
mov s_cdeCmdWd.byteCount, SIZE(s_paAddL1Std3)
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// Command Header
xin XID_CDEDATA, s_paAddL1Cmdhdr, SIZE(s_paAddL1Cmdhdr)
mov s_cdeCmdWd.byteCount, SIZE(s_paAddL1Cmdhdr)
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
qbne l_paComAddLut1Standard_vlink, s_paAddL1Hdr.type, PA_COM_ADD_LUT1_SRIO
// Populate the s_paAddL1f
set s_paAddL1f.ctrlFlag.custom_enable
mov s_paAddL1f.nextHdr, s_paAddL1Srio2.nextHdr
mov s_paAddL1f.nextHdrOffset, s_paAddL1Srio2.nextHdrOffset
l_paComAddLut1Standard_vlink:
qbne l_paComAddLut1Standard0, s_paAddL1Hdr.type, PA_COM_ADD_LUT1_VLINK
// Populate the virtual link number
set s_paAddL1fv.ctrlFlag.vlink_enable
mov s_paAddL1fv.vLinkNum, s_paAddL1Hdr.vLinkNum
l_paComAddLut1Standard0:
jmp fci_paComAddRepLut1_6
.leave configScope
.leave cdeScope
.leave lut1Scope
// *********************************************************************************************************
// * FUNCTION PURPOSE: Complete a waiting LUT1 modify
// *********************************************************************************************************
// * DESCRIPTION: A pending LUT1 entry or deletion is completed
// * The LUT is free (not checked in this function)
// *
// * Register Usage:
// *
// * R0:
// * R1: | Valid map
// * R2: |
// * R3:
// * R4: | CDE commands - cdeScope | s_l1PendCmd
// * R5: | - |
// * R6: | |
// * R7: | |
// * R8: | |
// * R9: | LUT1 View1 - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: | | s_paAddL1f
// * R14: |
// * R15: |
// * R16: |
// * R17: | LUT1 View2 - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *********************************************************************************************************
.using lut1Scope
.using cdeScope
.using configScope
f_paComLut1CompleteModify:
clr s_runCxt.flags.t_pendingConfig
// Get the pending information from scratch
lbco s_l1PendCmd, PAMEM_CONST_PDSP_CXT, PDSP_CXT_OFFSET_L1_PENDING, SIZE(s_l1PendCmd)
xout XID_LUT1CMD, s_l1PendCmd, SIZE(s_l1PendCmd)
#ifdef PASS_PROC_FIREWALL
// No special check for EOAM case is needed as rescore is never triggered
qbbc l_paComLut1CompleteModify_1,s_runCxt.flag3.t_trigRescoreProc
// Rescore can be scheduled now as the LUT1 is clean (nothing held)
call f_c1FirewallRescore
l_paComLut1CompleteModify_1:
#endif
jmp fci_mainLoop7
.leave lut1Scope
.leave configScope
.leave cdeScope
#ifdef PASS_PROC_FIREWALL
// *********************************************************************************************************
// * FUNCTION PURPOSE: ACL rescoring of an index
// *********************************************************************************************************
// * DESCRIPTION: Rescoring on a configured index is done, eventually all the indexs are rescored
// * The rescore completion is indicated by clearing t_trigRescoreProc bit (which is set during add)
// *
// * Register Usage:
// *
// * R0:
// * R1: | Valid map
// * R2: |
// * R3:
// * R4: | CDE commands - cdeScope | s_l1PendCmd
// * R5: | - |
// * R6: | |
// * R7: | |
// * R8: | |
// * R9: | LUT1 View1 - lut1Scope
// * R10: |
// * R11: |
// * R12: |
// * R13: | | s_paAddL1f
// * R14: |
// * R15: |
// * R16: |
// * R17: | LUT1 View2 - lut1Scope
// * R18: |
// * R19: |
// * R20: |
// * R21: |
// * R22: |
// * R23: | Packet context - pktScope
// * R24: |
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29: c1RunContext (s_runCxt) - Global Scope
// * R30: w2-param.action w0-function return address -
// * R31: System Flags (s_flags) -
// *
// *********************************************************************************************************
.using lut1Scope
.using cdeScope
.using aclLut1RescoreScope
f_c1FirewallRescore:
// Wait for LUT1 engine to be free
wbc s_flags.info.tStatus_Lut1Busy
lbco s_paAclRescoreHdr, PAMEM_CONST_RESCORE_HDR, OFFSET_RESCORE_HDR, SIZE(s_paAclRescoreHdr)
qbge l_c1FirewallRescore_done, s_paAclRescoreHdr.finalOffset, s_paAclRescoreHdr.offset
// Active entry, rescore it
add r0, s_paAclRescoreHdr.offset, OFFSET_RESCORE_DATA
// load data
lbco s_paAclRescoreData, PAMEM_CONST_RESCORE_DATA, r0, SIZE(s_paAclRescoreData)
mov s_l1DbgEntryCntlReg.entry, s_paAclRescoreData.index
// read the entry values
set s_l1DbgEntryCntlReg.dbgRead.l1DbgCntlRegReadBit
sbco s_l1DbgEntryCntlReg, cLut1Regs, LUT1_DBG_CNTL_REG_OFFSET, 4
// Wait until read is set in the debug entry data registers
l_c1FirewallRescore_1:
lbco s_l1DbgEntryCntlReg, cLut1Regs, LUT1_DBG_CNTL_REG_OFFSET, 4
qbbs l_c1FirewallRescore_1, s_l1DbgEntryCntlReg.dbgRead.l1DbgCntlRegReadBit
// load bitmask, score, care fields and range values
lbco s_l1DbgEntryDataRegs12_15, cLut1Regs, LUT1_DBG_ENTRY_DATA_REG12_OFFSET, 16
// if the entry is already deleted, do not re-enable it
qbeq l_c1FirewallRescore_skip, s_l1DbgEntryDataRegs12_15.careField0Entry, 0
// Update View1 (16 bytes)
lbco s_l1ViewE, cLut1Regs, LUT1_DBG_ENTRY_DATA_REG_VIEW1_OFFSET, 16
xout XID_LUT1V1, s_l1ViewE, SIZE(s_l1ViewE)
// Update View2
lbco s_l1ViewE, cLut1Regs, LUT1_DBG_ENTRY_DATA_REG_VIEW2_OFFSET, 16
xout XID_LUT1V2, s_l1ViewE, SIZE(s_l1ViewE)
// Update View3
lbco s_l1ViewE.data0, cLut1Regs, LUT1_DBG_ENTRY_DATA_REG_VIEW3_OFFSET1, 4
lbco &s_l1ViewE.data1, cLut1Regs, LUT1_DBG_ENTRY_DATA_REG_VIEW3_OFFSET2, 12
xout XID_LUT1V3, s_l1ViewE, SIZE(s_l1ViewE)
// Create the command, Update the new score in the command from rescore data information
mov s_l1RescoreCmd.score, s_paAclRescoreData.score
mov s_l1RescoreCmd.index, s_paAclRescoreData.index
// Rest of the values are same as whatever read from debug entry data regs
mov s_l1RescoreCmd.flags, 0
mov s_l1RescoreCmd.bitMask, s_l1DbgEntryDataRegs12_15.bitmaskEntry
mov s_l1RescoreCmd.range1, s_l1DbgEntryDataRegs12_15.range1HighEntry
mov s_l1RescoreCmd.range0, s_l1DbgEntryDataRegs12_15.range0HighEntry
mov s_l1RescoreCmd.care0, s_l1DbgEntryDataRegs12_15.careField0Entry
mov s_l1RescoreCmd.care1, s_l1DbgEntryDataRegs12_15.careField1Entry
// Issue LUT1_INSERT command
mov s_l1RescoreCmd.operation, LUT1_CMD_INSERTM
xout XID_LUT1CMD, s_l1RescoreCmd, SIZE(s_l1RescoreCmd)
// Wait for LUT1 engine to be free
wbc s_flags.info.tStatus_Lut1Busy
l_c1FirewallRescore_skip:
// Indicate one entry is completed
add s_paAclRescoreHdr.offset, s_paAclRescoreHdr.offset, 4
sbco s_paAclRescoreHdr, PAMEM_CONST_RESCORE_HDR, OFFSET_RESCORE_HDR, SIZE(s_paAclRescoreHdr)
ret
l_c1FirewallRescore_done:
clr s_runCxt.flag3.t_trigRescoreProc
ret
.leave lut1Scope
.leave aclLut1RescoreScope
.leave cdeScope
#endif
// *********************************************************************************
// * FUNCTION PURPOSE: SCTP CRC Verification Processing
// *********************************************************************************
// * DESCRIPTION: Verify the SCTP CRC calculation result with pre-stored data
// *
// * On entry:
// * - CDE points to the Control Info section
// * - r30.w0 has the return address
// * - s_pktCxt has valid packet context
// *
// * On exit:
// * - packet is forwarded
// *
// * Register Usage:
// *
// * R0:
// * R1:
// * R2:
// * R3:
// * R4: | CDE commands - cdeScope
// * R5: | -
// * R6: | SCTP CRC value
// * R7: |
// * R8: | Not used
// * R9: |
// * R10: |
// * R11: |
// * R12: |
// * R13: |
// * R14: |
// * R15: | Extended packet descriptor
// * R16: |
// * R17: |
// * R18: |
// * R19:
// * R20: | CRC context
// * R21: |
// * R22: |
// * R23: |
// * R24: | Packet context
// * R25: |
// * R26: |
// * R27: |
// * R28:
// * R29:
// * R30: w0-function return address -
// * R31: System Flags (s_flags) -
// *
// ************************************************************************
.using cdeScope
.using sctpScope
.using pktScope
#ifdef PASS_VERIFY_SCTP_CRC
f_paSctpVerifyCRC:
//xin XID_PINFO_A, s_pktExtDescr, SIZE(s_pktExtDescr)
// Read in the CRC context
xin XID_CDEDATA, s_sctpCrcCxt, SIZE(s_sctpCrcCxt)
// Scroll past and flush the control info
mov s_cdeCmdWd.operation, CDE_CMD_FLUSH_TO_PACKET
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// Scroll to the CRC location in the packet must be within the CDE range
mov s_cdeCmdWd.operation, CDE_CMD_WINDOW_ADVANCE
sub s_cdeCmdWd.byteCount, s_sctpCrcCxt.offset, s_pktExtDescr.mopLength
xout XID_CDECTRL, s_cdeCmdWd, SIZE(s_cdeCmdWd)
// Write back the original CRC
mov r6, s_sctpCrcCxt.crc
mov r0.b0, s_sctpCrcCxt.crcSize
xout XID_CDEDATA, r6, b0
qbeq l_paSctpVerifyCRC1, s_sctpCrcCxt.crc, s_pktExtDescr.crcValue
// CRC is incorrect
wbs s_flags.info.tStatus_CDEOutPacket
// Set the CRC error flag
lbco r1.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), SIZE(s_pktDescr.psFlags_errorFlags)
set r1.b0.t_pkt_desc_err_flag_chksum2
sbco r1.b0, cCdeOutPkt, OFFSET(s_pktDescr.psFlags_errorFlags), SIZE(s_pktDescr.psFlags_errorFlags)
l_paSctpVerifyCRC1:
// Update and copy the pkt context
clr s_pktCxt.flags.t_flag_crc_verify
sbco s_pktCxt, cCdeOutPkt, SIZE(s_pktDescr), SIZE(s_pktCxt)
clr s_pktExtDescr.flags.fDoCRC
// Ready to forward the packet
mov s_cdeCmdPkt.optionsFlag, (CDE_FLG_SET_PSINFO)
mov s_cdeCmdPkt.psInfoSize, (SIZE(s_pktCxt) + 7) & 0xf8 // Round up to multiple of 8 bytes
mov s_cdeCmdPkt.operation, CDE_CMD_PACKET_ADVANCE
ret
#endif
.leave cdeScope
.leave sctpScope
.leave pktScope
#include "parse1.p"
.leave globalScopeC1
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