[PATCH 7/8] agch: Add VTY queue management configuration

This patch adds the following VTY commands to tune AGCH queue handling: agch-queue-management no agch-queue-management agch-queue-management threshold THRES low LOW high HIGH Examples: agch-queue-management Enable queue management with default parameters (default, recommended) no agch-queue-management Disable it completely 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 --- src/common/vty.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/src/common/vty.c b/src/common/vty.c index d2aeed0..f7a04d6 100644 --- a/src/common/vty.c +++ b/src/common/vty.c @@ -158,6 +158,16 @@ 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_thres_level == GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DISABLE) + vty_out(vty, " no agch-queue-mgmt%s", VTY_NEWLINE); + else if (btsb->agch_queue_thres_level == GSM_BTS_AGCH_QUEUE_THRES_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%s", VTY_NEWLINE); + else + vty_out(vty, " agch-queue-mgmt threshold %d low %d high %d%s", + btsb->agch_queue_thres_level, btsb->agch_queue_low_level, + btsb->agch_queue_high_level, VTY_NEWLINE); bts_model_config_write_bts(vty, bts); @@ -324,6 +334,56 @@ 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_thres_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, + cfg_bts_agch_queue_mgmt_cmd, + "agch-queue-mgmt", + AGCH_QUEUE_STR) +{ + struct gsm_bts *bts = vty->index; + struct gsm_bts_role_bts *btsb = bts_role_bts(bts); + + btsb->agch_queue_thres_level = GSM_BTS_AGCH_QUEUE_THRES_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; +} + +DEFUN(cfg_bts_no_agch_queue_mgmt, + cfg_bts_no_agch_queue_mgmt_cmd, + "no agch-queue-mgmt", + NO_STR AGCH_QUEUE_STR) +{ + struct gsm_bts *bts = vty->index; + struct gsm_bts_role_bts *btsb = bts_role_bts(bts); + + btsb->agch_queue_thres_level = GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DISABLE; + btsb->agch_queue_low_level = 0; + btsb->agch_queue_high_level = 0; + + return CMD_SUCCESS; +} + /* ====================================================================== @@ -496,6 +556,9 @@ 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_cmd); + install_element(BTS_NODE, &cfg_bts_no_agch_queue_mgmt_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); -- 1.7.9.5