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- Committer: Package Import Robot
- Author(s): Thorsten Alteholz
- Date: 2017-12-12 19:07:49 UTC
- Revision ID: package-import@ubuntu.com-20171212190749-jicdjytnfb10cem5
Tags: 0.4.0-1
Initial release.
- files added:
- .pc
- .pc/spelling.patch
- .pc/spelling.patch/src
- .pc/spelling.patch/tests
- .pc/spelling.patch/tests/tbf
- debian
- debian/patches
- debian/source
- files modified:
- src/bts.cpp
added
removed
.pc/spelling.patch/src/tbf.h
1
/*
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* Copyright (C) 2013 by Holger Hans Peter Freyther
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#pragma once
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#ifdef __cplusplus
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#include "gprs_rlcmac.h"
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#include "llc.h"
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#include "rlc.h"
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#include "cxx_linuxlist.h"
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#include <gprs_debug.h>
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#include <stdint.h>
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extern "C" {
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#include <osmocom/core/utils.h>
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}
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struct bssgp_bvc_ctx;
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struct rlc_ul_header;
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struct msgb;
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struct pcu_l1_meas;
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class GprsMs;
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/*
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* TBF instance
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*/
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#define Tassign_agch 0,200000 /* waiting after IMM.ASS confirm */
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#define Tassign_pacch 2,0 /* timeout for pacch assigment */
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#define Treject_pacch 0,2000 /* timeout for tbf reject for PRR*/
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enum gprs_rlcmac_tbf_state {
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GPRS_RLCMAC_NULL = 0, /* new created TBF */
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GPRS_RLCMAC_ASSIGN, /* wait for downlink assignment */
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GPRS_RLCMAC_FLOW, /* RLC/MAC flow, resource needed */
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GPRS_RLCMAC_FINISHED, /* flow finished, wait for release */
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GPRS_RLCMAC_WAIT_RELEASE,/* wait for release or restart of DL TBF */
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GPRS_RLCMAC_RELEASING, /* releasing, wait to free TBI/USF */
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};
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enum gprs_rlcmac_tbf_poll_type {
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GPRS_RLCMAC_POLL_UL_ASS,
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GPRS_RLCMAC_POLL_DL_ASS,
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GPRS_RLCMAC_POLL_UL_ACK,
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GPRS_RLCMAC_POLL_DL_ACK,
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};
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enum gprs_rlcmac_tbf_poll_state {
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GPRS_RLCMAC_POLL_NONE = 0,
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GPRS_RLCMAC_POLL_SCHED, /* a polling was scheduled */
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};
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enum gprs_rlcmac_tbf_dl_ass_state {
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GPRS_RLCMAC_DL_ASS_NONE = 0,
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GPRS_RLCMAC_DL_ASS_SEND_ASS, /* send downlink assignment on next RTS */
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GPRS_RLCMAC_DL_ASS_WAIT_ACK, /* wait for PACKET CONTROL ACK */
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};
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extern const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[];
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enum gprs_rlcmac_tbf_ul_ass_state {
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GPRS_RLCMAC_UL_ASS_NONE = 0,
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GPRS_RLCMAC_UL_ASS_SEND_ASS, /* send uplink assignment on next RTS */
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GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ, /* send assignment reject next RTS */
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GPRS_RLCMAC_UL_ASS_WAIT_ACK, /* wait for PACKET CONTROL ACK */
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};
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extern const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[];
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enum gprs_rlcmac_tbf_ul_ack_state {
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GPRS_RLCMAC_UL_ACK_NONE = 0,
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GPRS_RLCMAC_UL_ACK_SEND_ACK, /* send acknowledge on next RTS */
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GPRS_RLCMAC_UL_ACK_WAIT_ACK, /* wait for PACKET CONTROL ACK */
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};
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enum gprs_rlcmac_tbf_direction {
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GPRS_RLCMAC_DL_TBF,
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GPRS_RLCMAC_UL_TBF
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};
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enum tbf_counters {
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TBF_CTR_RLC_NACKED,
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};
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enum tbf_gprs_counters {
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TBF_CTR_GPRS_DL_CS1,
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TBF_CTR_GPRS_DL_CS2,
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TBF_CTR_GPRS_DL_CS3,
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TBF_CTR_GPRS_DL_CS4,
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};
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enum tbf_egprs_counters {
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TBF_CTR_EGPRS_DL_MCS1,
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TBF_CTR_EGPRS_DL_MCS2,
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TBF_CTR_EGPRS_DL_MCS3,
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TBF_CTR_EGPRS_DL_MCS4,
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TBF_CTR_EGPRS_DL_MCS5,
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TBF_CTR_EGPRS_DL_MCS6,
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TBF_CTR_EGPRS_DL_MCS7,
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TBF_CTR_EGPRS_DL_MCS8,
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TBF_CTR_EGPRS_DL_MCS9,
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};
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enum tbf_gprs_ul_counters {
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TBF_CTR_GPRS_UL_CS1,
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TBF_CTR_GPRS_UL_CS2,
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TBF_CTR_GPRS_UL_CS3,
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TBF_CTR_GPRS_UL_CS4,
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};
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enum tbf_egprs_ul_counters {
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TBF_CTR_EGPRS_UL_MCS1,
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TBF_CTR_EGPRS_UL_MCS2,
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TBF_CTR_EGPRS_UL_MCS3,
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TBF_CTR_EGPRS_UL_MCS4,
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TBF_CTR_EGPRS_UL_MCS5,
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TBF_CTR_EGPRS_UL_MCS6,
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TBF_CTR_EGPRS_UL_MCS7,
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TBF_CTR_EGPRS_UL_MCS8,
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TBF_CTR_EGPRS_UL_MCS9,
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};
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#define GPRS_RLCMAC_FLAG_CCCH 0 /* assignment on CCCH */
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#define GPRS_RLCMAC_FLAG_PACCH 1 /* assignment on PACCH */
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#define GPRS_RLCMAC_FLAG_UL_DATA 2 /* uplink data received */
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#define GPRS_RLCMAC_FLAG_DL_ACK 3 /* downlink acknowledge received */
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#define GPRS_RLCMAC_FLAG_TO_UL_ACK 4
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#define GPRS_RLCMAC_FLAG_TO_DL_ACK 5
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#define GPRS_RLCMAC_FLAG_TO_UL_ASS 6
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#define GPRS_RLCMAC_FLAG_TO_DL_ASS 7
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#define GPRS_RLCMAC_FLAG_TO_MASK 0xf0 /* timeout bits */
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struct gprs_rlcmac_tbf {
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gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir);
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static void free_all(struct gprs_rlcmac_trx *trx);
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static void free_all(struct gprs_rlcmac_pdch *pdch);
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bool state_is(enum gprs_rlcmac_tbf_state rhs) const;
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bool state_is_not(enum gprs_rlcmac_tbf_state rhs) const;
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void set_state(enum gprs_rlcmac_tbf_state new_state);
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const char *state_name() const;
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const char *name() const;
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struct msgb *create_dl_ass(uint32_t fn, uint8_t ts);
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struct msgb *create_ul_ass(uint32_t fn, uint8_t ts);
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struct msgb *create_packet_access_reject();
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GprsMs *ms() const;
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void set_ms(GprsMs *ms);
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gprs_rlc_window *window();
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uint8_t tsc() const;
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int rlcmac_diag();
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int update();
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void handle_timeout();
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void stop_timer();
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void stop_t3191();
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int establish_dl_tbf_on_pacch();
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int check_polling(uint32_t fn, uint8_t ts,
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uint32_t *poll_fn, unsigned int *rrbp);
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void set_polling(uint32_t poll_fn, uint8_t ts, enum gprs_rlcmac_tbf_poll_type t);
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void poll_timeout();
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/** tlli handling */
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uint32_t tlli() const;
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bool is_tlli_valid() const;
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/** MS updating */
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void update_ms(uint32_t tlli, enum gprs_rlcmac_tbf_direction);
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uint8_t tfi() const;
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bool is_tfi_assigned() const;
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const char *imsi() const;
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void assign_imsi(const char *imsi);
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uint8_t ta() const;
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void set_ta(uint8_t);
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uint8_t ms_class() const;
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void set_ms_class(uint8_t);
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GprsCodingScheme current_cs() const;
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int llc_queue_size() const;
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time_t created_ts() const;
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uint8_t dl_slots() const;
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uint8_t ul_slots() const;
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bool is_control_ts(uint8_t ts) const;
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/* EGPRS */
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bool is_egprs_enabled() const;
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void enable_egprs();
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void disable_egprs();
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/* attempt to make things a bit more fair */
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void rotate_in_list();
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LListHead<gprs_rlcmac_tbf>& ms_list() {return this->m_ms_list;}
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const LListHead<gprs_rlcmac_tbf>& ms_list() const {return this->m_ms_list;}
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LListHead<gprs_rlcmac_tbf>& list();
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const LListHead<gprs_rlcmac_tbf>& list() const;
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uint32_t state_flags;
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enum gprs_rlcmac_tbf_direction direction;
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struct gprs_rlcmac_trx *trx;
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uint8_t first_ts; /* first TS used by TBF */
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uint8_t first_common_ts; /* first TS that the phone can send and
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reveive simultaniously */
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uint8_t control_ts; /* timeslot control messages and polling */
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struct gprs_rlcmac_pdch *pdch[8]; /* list of PDCHs allocated to TBF */
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gprs_llc m_llc;
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enum gprs_rlcmac_tbf_dl_ass_state dl_ass_state;
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enum gprs_rlcmac_tbf_ul_ass_state ul_ass_state;
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enum gprs_rlcmac_tbf_ul_ack_state ul_ack_state;
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enum gprs_rlcmac_tbf_poll_state poll_state;
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uint32_t poll_fn; /* frame number to poll */
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uint8_t poll_ts; /* TS to poll */
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gprs_rlc m_rlc;
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uint8_t n3105; /* N3105 counter */
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struct osmo_timer_list timer;
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unsigned int T; /* Txxxx number */
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unsigned int num_T_exp; /* number of consecutive T expirations */
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struct osmo_gsm_timer_list gsm_timer;
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unsigned int fT; /* fTxxxx number */
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unsigned int num_fT_exp; /* number of consecutive fT expirations */
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struct Meas {
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struct timeval rssi_tv; /* timestamp for rssi calculation */
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int32_t rssi_sum; /* sum of rssi values */
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int rssi_num; /* number of rssi values added since rssi_tv */
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Meas();
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} meas;
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/* these should become protected but only after gprs_rlcmac_data.c
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* stops to iterate over all tbf in its current form */
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enum gprs_rlcmac_tbf_state state;
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/* Remember if the tbf was in wait_release state when we want to
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* schedule a new dl assignment */
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uint8_t was_releasing;
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/* Can/should we upgrade this tbf to use multiple slots? */
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uint8_t upgrade_to_multislot;
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/* store the BTS this TBF belongs to */
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BTS *bts;
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/*
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* private fields. We can't make it private as it is breaking the
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* llist macros.
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*/
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uint8_t m_tfi;
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time_t m_created_ts;
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struct rate_ctr_group *m_ctrs;
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protected:
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gprs_rlcmac_bts *bts_data() const;
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int set_tlli_from_ul(uint32_t new_tlli);
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void merge_and_clear_ms(GprsMs *old_ms);
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gprs_llc_queue *llc_queue();
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const gprs_llc_queue *llc_queue() const;
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static const char *tbf_state_name[6];
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class GprsMs *m_ms;
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/* Fields to take the TA/MS class values if no MS is associated */
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uint8_t m_ta;
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uint8_t m_ms_class;
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private:
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LListHead<gprs_rlcmac_tbf> m_list;
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LListHead<gprs_rlcmac_tbf> m_ms_list;
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bool m_egprs_enabled;
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mutable char m_name_buf[60];
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};
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struct gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
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int8_t use_trx, uint8_t ms_class, uint8_t egprs_ms_class,
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uint32_t tlli, uint8_t ta, GprsMs *ms);
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struct gprs_rlcmac_ul_tbf *tbf_alloc_ul_tbf(struct gprs_rlcmac_bts *bts,
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GprsMs *ms, int8_t use_trx,
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uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot);
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struct gprs_rlcmac_dl_tbf *tbf_alloc_dl_tbf(struct gprs_rlcmac_bts *bts,
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GprsMs *ms, int8_t use_trx,
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uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot);
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void tbf_free(struct gprs_rlcmac_tbf *tbf);
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struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts,
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GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts_no);
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int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf);
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void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T,
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unsigned int seconds, unsigned int microseconds);
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inline bool gprs_rlcmac_tbf::state_is(enum gprs_rlcmac_tbf_state rhs) const
336
{
337
return state == rhs;
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}
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inline bool gprs_rlcmac_tbf::state_is_not(enum gprs_rlcmac_tbf_state rhs) const
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{
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return state != rhs;
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}
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const char *tbf_name(gprs_rlcmac_tbf *tbf);
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inline const char *gprs_rlcmac_tbf::state_name() const
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{
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return tbf_state_name[state];
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}
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inline void gprs_rlcmac_tbf::set_state(enum gprs_rlcmac_tbf_state new_state)
353
{
354
LOGP(DRLCMAC, LOGL_DEBUG, "%s changes state from %s to %s\n",
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tbf_name(this),
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tbf_state_name[state], tbf_state_name[new_state]);
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state = new_state;
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}
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inline LListHead<gprs_rlcmac_tbf>& gprs_rlcmac_tbf::list()
361
{
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return this->m_list;
363
}
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inline const LListHead<gprs_rlcmac_tbf>& gprs_rlcmac_tbf::list() const
366
{
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return this->m_list;
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}
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inline GprsMs *gprs_rlcmac_tbf::ms() const
371
{
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return m_ms;
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}
374
375
inline bool gprs_rlcmac_tbf::is_tlli_valid() const
376
{
377
return tlli() != 0;
378
}
379
380
inline bool gprs_rlcmac_tbf::is_tfi_assigned() const
381
{
382
/* The TBF is established or has been assigned by a IMM.ASS for
383
* download */
384
return state > GPRS_RLCMAC_ASSIGN ||
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(direction == GPRS_RLCMAC_DL_TBF &&
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state == GPRS_RLCMAC_ASSIGN &&
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(state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)));
388
}
389
390
inline uint8_t gprs_rlcmac_tbf::tfi() const
391
{
392
return m_tfi;
393
}
394
395
inline time_t gprs_rlcmac_tbf::created_ts() const
396
{
397
return m_created_ts;
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}
399
400
inline bool gprs_rlcmac_tbf::is_egprs_enabled() const
401
{
402
return m_egprs_enabled;
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}
404
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inline void gprs_rlcmac_tbf::enable_egprs()
406
{
407
m_egprs_enabled = true;
408
}
409
410
inline void gprs_rlcmac_tbf::disable_egprs()
411
{
412
m_egprs_enabled = false;
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}
414
415
struct gprs_rlcmac_dl_tbf : public gprs_rlcmac_tbf {
416
gprs_rlcmac_dl_tbf(BTS *bts);
417
418
void cleanup();
419
420
/* dispatch Unitdata.DL messages */
421
static int handle(struct gprs_rlcmac_bts *bts,
422
const uint32_t tlli, const uint32_t old_tlli,
423
const char *imsi, const uint8_t ms_class,
424
const uint8_t egprs_ms_class, const uint16_t delay_csec,
425
const uint8_t *data, const uint16_t len);
426
427
int append_data(const uint8_t ms_class,
428
const uint16_t pdu_delay_csec,
429
const uint8_t *data, const uint16_t len);
430
431
int rcvd_dl_ack(uint8_t final, uint8_t ssn, uint8_t *rbb);
432
int rcvd_dl_ack(uint8_t final_ack, unsigned first_bsn, struct bitvec *rbb);
433
struct msgb *create_dl_acked_block(uint32_t fn, uint8_t ts);
434
void trigger_ass(struct gprs_rlcmac_tbf *old_tbf);
435
void clear_poll_timeout_flag();
436
bool handle_ack_nack();
437
void request_dl_ack();
438
bool need_control_ts() const;
439
bool have_data() const;
440
int frames_since_last_poll(unsigned fn) const;
441
int frames_since_last_drain(unsigned fn) const;
442
bool keep_open(unsigned fn) const;
443
int release();
444
int abort();
445
446
void egprs_calc_window_size();
447
void update_coding_scheme_counter_dl(const GprsCodingScheme cs);
448
449
/* TODO: add the gettimeofday as parameter */
450
struct msgb *llc_dequeue(bssgp_bvc_ctx *bctx);
451
452
/* Please note that all variables here will be reset when changing
453
* from WAIT RELEASE back to FLOW state (re-use of TBF).
454
* All states that need reset must be in this struct, so this is why
455
* variables are in both (dl and ul) structs and not outside union.
456
*/
457
gprs_rlc_dl_window m_window;
458
int32_t m_tx_counter; /* count all transmitted blocks */
459
uint8_t m_wait_confirm; /* wait for CCCH IMM.ASS cnf */
460
bool m_dl_ack_requested;
461
int32_t m_last_dl_poll_fn;
462
int32_t m_last_dl_drained_fn;
463
464
struct BandWidth {
465
struct timeval dl_bw_tv; /* timestamp for dl bw calculation */
466
uint32_t dl_bw_octets; /* number of octets since bw_tv */
467
uint32_t dl_throughput; /* throughput to be displayed in stats */
468
469
struct timeval dl_loss_tv; /* timestamp for loss calculation */
470
uint16_t dl_loss_lost; /* sum of lost packets */
471
uint16_t dl_loss_received; /* sum of received packets */
472
473
BandWidth();
474
} m_bw;
475
476
struct rate_ctr_group *m_dl_gprs_ctrs;
477
struct rate_ctr_group *m_dl_egprs_ctrs;
478
479
protected:
480
struct ana_result {
481
unsigned received_packets;
482
unsigned lost_packets;
483
unsigned received_bytes;
484
unsigned lost_bytes;
485
};
486
487
int take_next_bsn(uint32_t fn, int previous_bsn,
488
bool *may_combine);
489
bool restart_bsn_cycle();
490
int create_new_bsn(const uint32_t fn, GprsCodingScheme cs);
491
struct msgb *create_dl_acked_block(const uint32_t fn, const uint8_t ts,
492
int index, int index2 = -1);
493
int update_window(const uint8_t ssn, const uint8_t *rbb);
494
int update_window(unsigned first_bsn, const struct bitvec *rbb);
495
int maybe_start_new_window();
496
bool dl_window_stalled() const;
497
void reuse_tbf();
498
void start_llc_timer();
499
int analyse_errors(char *show_rbb, uint8_t ssn, ana_result *res);
500
void schedule_next_frame();
501
502
enum egprs_rlc_dl_reseg_bsn_state egprs_dl_get_data
503
(int bsn, uint8_t **block_data);
504
unsigned int get_egprs_dl_spb_status(int bsn);
505
enum egprs_rlcmac_dl_spb get_egprs_dl_spb(int bsn);
506
507
struct osmo_timer_list m_llc_timer;
508
};
509
510
struct gprs_rlcmac_ul_tbf : public gprs_rlcmac_tbf {
511
gprs_rlcmac_ul_tbf(BTS *bts);
512
513
struct msgb *create_ul_ack(uint32_t fn, uint8_t ts);
514
bool ctrl_ack_to_toggle();
515
bool handle_ctrl_ack();
516
517
/* blocks were acked */
518
int rcv_data_block_acknowledged(
519
const struct gprs_rlc_data_info *rlc,
520
uint8_t *data, struct pcu_l1_meas *meas);
521
522
523
/* TODO: extract LLC class? */
524
int assemble_forward_llc(const gprs_rlc_data *data);
525
int snd_ul_ud();
526
527
egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_spb(
528
const struct gprs_rlc_data_info *rlc,
529
struct gprs_rlc_data *block,
530
uint8_t *data, const uint8_t block_idx);
531
532
egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_first_seg(
533
const struct gprs_rlc_data_info *rlc,
534
struct gprs_rlc_data *block,
535
uint8_t *data, const uint8_t block_idx);
536
537
egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_second_seg(
538
const struct gprs_rlc_data_info *rlc,
539
struct gprs_rlc_data *block,
540
uint8_t *data, const uint8_t block_idx);
541
542
void egprs_calc_ulwindow_size();
543
544
void update_coding_scheme_counter_ul(const GprsCodingScheme cs);
545
546
/* Please note that all variables here will be reset when changing
547
* from WAIT RELEASE back to FLOW state (re-use of TBF).
548
* All states that need reset must be in this struct, so this is why
549
* variables are in both (dl and ul) structs and not outside union.
550
*/
551
gprs_rlc_ul_window m_window;
552
int32_t m_rx_counter; /* count all received blocks */
553
uint8_t m_n3103; /* N3103 counter */
554
uint8_t m_usf[8]; /* list USFs per PDCH (timeslot) */
555
uint8_t m_contention_resolution_done; /* set after done */
556
uint8_t m_final_ack_sent; /* set if we sent final ack */
557
558
struct rate_ctr_group *m_ul_gprs_ctrs;
559
struct rate_ctr_group *m_ul_egprs_ctrs;
560
561
protected:
562
void maybe_schedule_uplink_acknack(const gprs_rlc_data_info *rlc);
563
};
564
565
inline enum gprs_rlcmac_tbf_direction reverse(enum gprs_rlcmac_tbf_direction dir)
566
{
567
return (enum gprs_rlcmac_tbf_direction)
568
((int)GPRS_RLCMAC_UL_TBF - (int)dir + (int)GPRS_RLCMAC_DL_TBF);
569
}
570
571
inline gprs_rlcmac_ul_tbf *as_ul_tbf(gprs_rlcmac_tbf *tbf)
572
{
573
if (tbf && tbf->direction == GPRS_RLCMAC_UL_TBF)
574
return static_cast<gprs_rlcmac_ul_tbf *>(tbf);
575
else
576
return NULL;
577
}
578
579
inline gprs_rlcmac_dl_tbf *as_dl_tbf(gprs_rlcmac_tbf *tbf)
580
{
581
if (tbf && tbf->direction == GPRS_RLCMAC_DL_TBF)
582
return static_cast<gprs_rlcmac_dl_tbf *>(tbf);
583
else
584
return NULL;
585
}
586
587
inline gprs_rlc_window *gprs_rlcmac_tbf::window()
588
{
589
switch (direction)
590
{
591
case GPRS_RLCMAC_UL_TBF: return &as_ul_tbf(this)->m_window;
592
case GPRS_RLCMAC_DL_TBF: return &as_dl_tbf(this)->m_window;
593
}
594
return NULL;
595
}
596
597
#endif
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