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osmo-bts
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agch: Add VTY queue management configuration 

This patch adds the following VTY commands to tune AGCH queue
handling:

  agch-queue-management default
  agch-queue-management threshold THRES low LOW high HIGH

Examples:
  agch-queue-management default
    Resets queue management to default parameters.
  agch-queue-management threshold 0 low 25 high 75
    Start dropping at 25%, drop all messages above 75% queue length
    (relative to max queue length corresponding to T3126). Between
    low and high, drop with a probability interpolated linearly
    between 0 (low) and 1 (high).
  agch-queue-management threshold 50 low 0 high 0
    Start dropping at 50% and continue until all IMM.ASS.REJ have
    been removed from the front (output) of the queue

Sponsored-by: On-Waves ehf
This commit is contained in:
Jacob Erlbeck 2014-02-20 13:10:01 +01:00 committed by Holger Hans Peter Freyther
parent fae0149260
commit 0148d4e7d5
1 changed files with 43 additions and 0 deletions
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43
src/common/vty.c
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@ -189,6 +189,12 @@ static void config_write_bts_single(struct vty *vty, struct gsm_bts *bts)
VTY_NEWLINE);
vty_out(vty, " paging lifetime %u%s", paging_get_lifetime(btsb->paging_state),
VTY_NEWLINE);
if (btsb->agch_queue_thresh_level != GSM_BTS_AGCH_QUEUE_THRESH_LEVEL_DEFAULT
|| btsb->agch_queue_low_level != GSM_BTS_AGCH_QUEUE_LOW_LEVEL_DEFAULT
|| btsb->agch_queue_high_level != GSM_BTS_AGCH_QUEUE_HIGH_LEVEL_DEFAULT)
vty_out(vty, " agch-queue-mgmt threshold %d low %d high %d%s",
btsb->agch_queue_thresh_level, btsb->agch_queue_low_level,
btsb->agch_queue_high_level, VTY_NEWLINE);
bts_model_config_write_bts(vty, bts);
@ -355,6 +361,41 @@ DEFUN(cfg_bts_paging_lifetime,
return CMD_SUCCESS;
}
#define AGCH_QUEUE_STR "AGCH queue mgmt\n"
DEFUN(cfg_bts_agch_queue_mgmt_params,
cfg_bts_agch_queue_mgmt_params_cmd,
"agch-queue-mgmt threshold <0-100> low <0-100> high <0-100000>",
AGCH_QUEUE_STR
"Threshold to start cleanup\nin %% of the maximum queue length\n"
"Low water mark for cleanup\nin %% of the maximum queue length\n"
"High water mark for cleanup\nin %% of the maximum queue length\n")
{
struct gsm_bts *bts = vty->index;
struct gsm_bts_role_bts *btsb = bts_role_bts(bts);
btsb->agch_queue_thresh_level = atoi(argv[0]);
btsb->agch_queue_low_level = atoi(argv[1]);
btsb->agch_queue_high_level = atoi(argv[2]);
return CMD_SUCCESS;
}
DEFUN(cfg_bts_agch_queue_mgmt_default,
cfg_bts_agch_queue_mgmt_default_cmd,
"agch-queue-mgmt default",
AGCH_QUEUE_STR
"Reset clean parameters to default values\n")
{
struct gsm_bts *bts = vty->index;
struct gsm_bts_role_bts *btsb = bts_role_bts(bts);
btsb->agch_queue_thresh_level = GSM_BTS_AGCH_QUEUE_THRESH_LEVEL_DEFAULT;
btsb->agch_queue_low_level = GSM_BTS_AGCH_QUEUE_LOW_LEVEL_DEFAULT;
btsb->agch_queue_high_level = GSM_BTS_AGCH_QUEUE_HIGH_LEVEL_DEFAULT;
return CMD_SUCCESS;
}
/* ======================================================================
@ -527,6 +568,8 @@ int bts_vty_init(const struct log_info *cat)
install_element(BTS_NODE, &cfg_no_description_cmd);
install_element(BTS_NODE, &cfg_bts_paging_queue_size_cmd);
install_element(BTS_NODE, &cfg_bts_paging_lifetime_cmd);
install_element(BTS_NODE, &cfg_bts_agch_queue_mgmt_default_cmd);
install_element(BTS_NODE, &cfg_bts_agch_queue_mgmt_params_cmd);
/* add and link to TRX config node */
install_element(BTS_NODE, &cfg_bts_trx_cmd);