[asterisk-ss7] dahdi chunk_size chan_ss7
Goke M Aruna
goksie at gmail.com
Sat Mar 27 11:23:02 CDT 2010
Can you tell me what version of wanpipe do you use?
Am having error Zaptel device failed to come up.
Possible cause Udev not installed.
Can someone help. I have confimed I have udev
On 3/15/10, Ngo-Vi Hoai-Anh <hoaianh at gmx.de> wrote:
> We have managed to make it work with DAHDI_CHUNKSIZE 40.
>
> We use:
> - Sangoma A 108
> - Chan_ss7 1.3
> - Dahdi-linux-2.2.1
>
> It works but we don't know for sure how stable it is. I would be very
> thankful if someone tries and give us some feedback.
>
> Patch on chan_ss7
>
> diff -ur chan_ss7-1.3/mtp.c chan_ss7-chunk40-1.3/mtp.c
> --- chan_ss7-1.3/mtp.c 2009-12-06 10:34:42.000000000 +0100
> +++ chan_ss7-chunk40-1.3/mtp.c 2010-03-15 11:09:07.000000000 +0100
> @@ -1829,7 +1829,8 @@
> gettimeofday(&now, NULL);
> tdiff = timediff_usec(now, last);
> #ifndef MTP_OVER_UDP
> - if (tdiff > 5000)
> + //if (tdiff > 5000)
> + if (tdiff > 25000)
> if (n_mtp2_state)
> fifo_log(m, LOG_NOTICE, "Excessive poll delay %d!\n", tdiff);//xxxx
> #endif
> diff -ur chan_ss7-1.3/transport.h chan_ss7-chunk40-1.3/transport.h
> --- chan_ss7-1.3/transport.h 2009-12-06 10:34:42.000000000 +0100
> +++ chan_ss7-chunk40-1.3/transport.h 2010-03-15 10:49:10.000000000 +0100
> @@ -37,7 +37,8 @@
> #ifdef MTP_OVER_UDP
> ZAP_BUF_SIZE = 64,
> #else
> - ZAP_BUF_SIZE = 16,
> + //ZAP_BUF_SIZE = 16,
> + ZAP_BUF_SIZE = 80,
> #endif
> };
>
>
>
>
> Patch on dahdi
>
> diff -ur dahdi-linux-2.2.1/drivers/dahdi/dahdi-base.c
> /var/tmp/dahdi-linux-2.2.1/drivers/dahdi/dahdi-base.c
> --- dahdi-linux-2.2.1/drivers/dahdi/dahdi-base.c 2009-12-28
> 20:16:37.000000000 +0100
> +++ /var/tmp/dahdi-linux-2.2.1/drivers/dahdi/dahdi-base.c 2010-03-15
> 13:20:23.000000000 +0100
> @@ -3047,7 +3047,8 @@
> case DAHDI_TONE_MFR1_ST2P:
> case DAHDI_TONE_MFR1_ST3P:
> /* signaling control tones are always 100ms */
> - t->tonesamples = 100 * DAHDI_CHUNKSIZE;
> + /* t->tonesamples = 100 * DAHDI_CHUNKSIZE; */
> + t->tonesamples = 100 * DAHDI_DEFAULT_CHUNKSIZE;
> break;
> default:
> t->tonesamples = global_dialparams.mfv1_tonelen;
> @@ -4249,27 +4250,37 @@
> continue;
>
> for (i = 0; i < ARRAY_SIZE(z->dtmf); i++) {
> - z->dtmf[i].tonesamples = global_dialparams.dtmf_tonelen
> * DAHDI_CHUNKSIZE;
> + // z->dtmf[i].tonesamples =
> global_dialparams.dtmf_tonelen * DAHDI_CHUNKSIZE;
> + z->dtmf[i].tonesamples = global_dialparams.dtmf_tonelen
> * DAHDI_DEFAULT_CHUNKSIZE;
> }
>
> /* for MFR1, we only adjust the length of the digits */
> for (i = DAHDI_TONE_MFR1_0; i <= DAHDI_TONE_MFR1_9; i++) {
> - z->mfr1[i - DAHDI_TONE_MFR1_BASE].tonesamples =
> global_dialparams.mfv1_tonelen * DAHDI_CHUNKSIZE;
> + //z->mfr1[i - DAHDI_TONE_MFR1_BASE].tonesamples =
> global_dialparams.mfv1_tonelen * DAHDI_CHUNKSIZE;
> + z->mfr1[i - DAHDI_TONE_MFR1_BASE].tonesamples =
> global_dialparams.mfv1_tonelen * DAHDI_DEFAULT_CHUNKSIZE;
> }
>
> for (i = 0; i < ARRAY_SIZE(z->mfr2_fwd); i++) {
> - z->mfr2_fwd[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_CHUNKSIZE;
> + //z->mfr2_fwd[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_CHUNKSIZE;
> + z->mfr2_fwd[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_DEFAULT_CHUNKSIZE;
> }
>
> for (i = 0; i < ARRAY_SIZE(z->mfr2_rev); i++) {
> - z->mfr2_rev[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_CHUNKSIZE;
> + //z->mfr2_rev[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_CHUNKSIZE;
> + z->mfr2_rev[i].tonesamples =
> global_dialparams.mfr2_tonelen * DAHDI_DEFAULT_CHUNKSIZE;
> }
> }
> write_unlock(&zone_lock);
> -
> +
> + /**
> dtmf_silence.tonesamples = global_dialparams.dtmf_tonelen *
> DAHDI_CHUNKSIZE;
> mfr1_silence.tonesamples = global_dialparams.mfv1_tonelen *
> DAHDI_CHUNKSIZE;
> mfr2_silence.tonesamples = global_dialparams.mfr2_tonelen *
> DAHDI_CHUNKSIZE;
> + */
> +
> + dtmf_silence.tonesamples = global_dialparams.dtmf_tonelen *
> DAHDI_DEFAULT_CHUNKSIZE;
> + mfr1_silence.tonesamples = global_dialparams.mfv1_tonelen *
> DAHDI_DEFAULT_CHUNKSIZE;
> + mfr2_silence.tonesamples = global_dialparams.mfr2_tonelen *
> DAHDI_DEFAULT_CHUNKSIZE;
>
> break;
> }
> diff -ur dahdi-linux-2.2.1/drivers/dahdi/digits.h
> /var/tmp/dahdi-linux-2.2.1/drivers/dahdi/digits.h
> --- dahdi-linux-2.2.1/drivers/dahdi/digits.h 2008-08-06
> 01:56:00.000000000 +0200
> +++ /var/tmp/dahdi-linux-2.2.1/drivers/dahdi/digits.h 2010-03-15
> 13:23:02.000000000 +0100
> @@ -19,10 +19,14 @@
> #ifndef _DIGITS_H
> #define _DIGITS_H
>
> -#define DEFAULT_DTMF_LENGTH 100 * DAHDI_CHUNKSIZE
> -#define DEFAULT_MFR1_LENGTH 68 * DAHDI_CHUNKSIZE
> -#define DEFAULT_MFR2_LENGTH 100 * DAHDI_CHUNKSIZE
> -#define PAUSE_LENGTH 500 * DAHDI_CHUNKSIZE
> +//#define DEFAULT_DTMF_LENGTH 100 * DAHDI_CHUNKSIZE
> +#define DEFAULT_DTMF_LENGTH 100 * DAHDI_DEFAULT_CHUNKSIZE
> +//#define DEFAULT_MFR1_LENGTH 68 * DAHDI_CHUNKSIZE
> +#define DEFAULT_MFR1_LENGTH 68 * DAHDI_DEFAULT_CHUNKSIZE
> +//#define DEFAULT_MFR2_LENGTH 100 * DAHDI_CHUNKSIZE
> +#define DEFAULT_MFR2_LENGTH 100 * DAHDI_DEFAULT_CHUNKSIZE
> +//#define PAUSE_LENGTH 500 * DAHDI_CHUNKSIZE
> +#define PAUSE_LENGTH 500 * DAHDI_DEFAULT_CHUNKSIZE
>
> /* At the end of silence, the tone stops */
> static struct dahdi_tone dtmf_silence = {
> diff -ur dahdi-linux-2.2.1/include/dahdi/kernel.h
> /var/tmp/dahdi-linux-2.2.1/include/dahdi/kernel.h
> --- dahdi-linux-2.2.1/include/dahdi/kernel.h 2009-11-12
> 21:02:24.000000000 +0100
> +++ /var/tmp/dahdi-linux-2.2.1/include/dahdi/kernel.h 2010-03-15
> 13:13:00.000000000 +0100
> @@ -94,9 +94,11 @@
> /*! Default chunk size for conferences and such -- static right now,
> might make
> variable sometime. 8 samples = 1 ms = most frequent service
> interval possible
> for a USB device */
> -#define DAHDI_CHUNKSIZE 8
> +/*! oroginal #define DAHDI_CHUNKSIZE 8 */
> +#define DAHDI_CHUNKSIZE 40
> #define DAHDI_MIN_CHUNKSIZE DAHDI_CHUNKSIZE
> -#define DAHDI_DEFAULT_CHUNKSIZE DAHDI_CHUNKSIZE
> +/*! original #define DAHDI_DEFAULT_CHUNKSIZE DAHDI_CHUNKSIZE */
> +#define DAHDI_DEFAULT_CHUNKSIZE 8
> #define DAHDI_MAX_CHUNKSIZE DAHDI_CHUNKSIZE
> #define DAHDI_CB_SIZE 2
>
>
>
>
>
> marek cervenka schrieb:
>>> Dear folk,
>>>
>>> I've found this interesting document
>>> http://www.sangoma.com/assets/docs/misc/2009_10_09_How_to_Reduce_Asterisk_System_Loads.pdf.
>>>
>>> After having read it I've tried to set chunk size to 40 for using
>>> sangoma + chan_ss7. But it doesn't work. Chan_ss7 seems not to be able
>>> able to setup link on mtp level. I got this permanently:
>>> ...
>>>
>>> Has someone already struggled with the same problem? Is there any patch
>>> for this?
>>>
>>
>> i have the same problem. no solution
>>
>> ---------------------------------------
>> jabber - cervajs at njs.netlab.cz
>> Marek Cervenka
>> =======================================
>>
>>
>>
>
>
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