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osmo-pcu
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tbf: Add adaptive coding scheme configuration 

This commit adds the following VTY commands to config-pcu:

- cs threshold <0-100> <0-100>    Enables adaptive CS selection
- no cs threshold                 Disables it

The "cs threshold LOW HIGH" command sets the water marks
(cs_adj_lower_limit and cs_adj_upper_limit) used to
decide about switching coding schemes.

Ticket: #1739
Sponsored-by: On-Waves ehf
This commit is contained in:
Jacob Erlbeck 2015-06-04 15:12:10 +02:00
parent a17fccbcf4
commit 8322d08071
1 changed files with 52 additions and 2 deletions
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54
src/pcu_vty.c
View File

@ -75,6 +75,13 @@ static int config_write_pcu(struct vty *vty)
vty_out(vty, " cs %d %d%s", bts->initial_cs_dl,
bts->initial_cs_ul, VTY_NEWLINE);
}
if (bts->cs_adj_enabled)
vty_out(vty, " cs threshold %d %d%s",
bts->cs_adj_lower_limit, bts->cs_adj_upper_limit,
VTY_NEWLINE);
else
vty_out(vty, " no cs threshold%s", VTY_NEWLINE);
if (bts->force_llc_lifetime == 0xffff)
vty_out(vty, " queue lifetime infinite%s", VTY_NEWLINE);
else if (bts->force_llc_lifetime)
@ -249,12 +256,14 @@ DEFUN(cfg_pcu_no_fc_bucket_time,
return CMD_SUCCESS;
}
#define CS_STR "Coding Scheme configuration\n"
DEFUN(cfg_pcu_cs,
cfg_pcu_cs_cmd,
"cs <1-4> [<1-4>]",
"Set the Coding Scheme to be used, (overrides BTS config)\n"
"Initial CS used\nAlternative uplink CS")
CS_STR
"Initial CS value to be used (overrides BTS config)\n"
"Use a different initial CS value for the uplink")
{
struct gprs_rlcmac_bts *bts = bts_main_data();
uint8_t cs = atoi(argv[0]);
@ -510,6 +519,45 @@ DEFUN(cfg_pcu_no_ms_idle_time,
return CMD_SUCCESS;
}
#define CS_ERR_LIMITS_STR "set limits for error rate based CS adjustment\n"
DEFUN(cfg_pcu_cs_err_limits,
cfg_pcu_cs_err_limits_cmd,
"cs limits <0-100> <0-100>",
CS_STR CS_ERR_LIMITS_STR "lower limit in %\n" "upper limit in %\n")
{
struct gprs_rlcmac_bts *bts = bts_main_data();
uint8_t lower_limit = atoi(argv[0]);
uint8_t upper_limit = atoi(argv[1]);
if (lower_limit > upper_limit) {
vty_out(vty,
"The lower limit must be less than or equal to the "
"upper limit.%s", VTY_NEWLINE);
return CMD_WARNING;
}
bts->cs_adj_enabled = 1;
bts->cs_adj_upper_limit = upper_limit;
bts->cs_adj_lower_limit = lower_limit;
return CMD_SUCCESS;
}
DEFUN(cfg_pcu_no_cs_err_limits,
cfg_pcu_no_cs_err_limits_cmd,
"no cs limits",
NO_STR CS_STR CS_ERR_LIMITS_STR)
{
struct gprs_rlcmac_bts *bts = bts_main_data();
bts->cs_adj_enabled = 0;
bts->cs_adj_upper_limit = 100;
bts->cs_adj_lower_limit = 0;
return CMD_SUCCESS;
}
DEFUN(show_tbf,
show_tbf_cmd,
"show tbf all",
@ -567,6 +615,8 @@ int pcu_vty_init(const struct log_info *cat)
install_element(PCU_NODE, &cfg_pcu_no_two_phase_cmd);
install_element(PCU_NODE, &cfg_pcu_cs_cmd);
install_element(PCU_NODE, &cfg_pcu_no_cs_cmd);
install_element(PCU_NODE, &cfg_pcu_cs_err_limits_cmd);
install_element(PCU_NODE, &cfg_pcu_no_cs_err_limits_cmd);
install_element(PCU_NODE, &cfg_pcu_queue_lifetime_cmd);
install_element(PCU_NODE, &cfg_pcu_queue_lifetime_inf_cmd);
install_element(PCU_NODE, &cfg_pcu_no_queue_lifetime_cmd);