diff options
Diffstat (limited to 'package/network/utils/iw/patches/010-dynack.patch')
| -rw-r--r-- | package/network/utils/iw/patches/010-dynack.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/package/network/utils/iw/patches/010-dynack.patch b/package/network/utils/iw/patches/010-dynack.patch new file mode 100644 index 0000000..00e4bf2 --- /dev/null +++ b/package/network/utils/iw/patches/010-dynack.patch @@ -0,0 +1,94 @@ + + +Add auto parameter to set distance command in order to enable ACK timeout +estimation algorithm (dynack). Dynack is automatically disabled setting valid +value for coverage class. Currently dynack is supported just by ath9k + +This patch is based on "configure dynack through mac80211/cfg80211 stack" +patchset sent on linux-wireless + +Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> +--- + info.c | 2 ++ + nl80211.h | 12 ++++++++++++ + phy.c | 43 +++++++++++++++++++++++++------------------ + 3 files changed, 39 insertions(+), 18 deletions(-) + +--- a/info.c ++++ b/info.c +@@ -551,6 +551,8 @@ broken_combination: + printf("\tDevice supports scan flush.\n"); + if (features & NL80211_FEATURE_AP_SCAN) + printf("\tDevice supports AP scan.\n"); ++ if (features & NL80211_FEATURE_ACKTO_ESTIMATION) ++ printf("\tDevice supports ACK timeout estimation.\n"); + } + + if (tb_msg[NL80211_ATTR_TDLS_SUPPORT]) +--- a/phy.c ++++ b/phy.c +@@ -362,39 +362,46 @@ static int handle_distance(struct nl8021 + int argc, char **argv, + enum id_input id) + { +- char *end; +- unsigned int distance, coverage; +- + if (argc != 1) + return 1; + + if (!*argv[0]) + return 1; + +- distance = strtoul(argv[0], &end, 10); ++ if (strcmp("auto", argv[0]) == 0) { ++ NLA_PUT_FLAG(msg, NL80211_ATTR_WIPHY_DYN_ACK); ++ } else { ++ char *end; ++ unsigned int distance, coverage; + +- if (*end) +- return 1; ++ distance = strtoul(argv[0], &end, 10); + +- /* +- * Divide double the distance by the speed of light in m/usec (300) to +- * get round-trip time in microseconds and then divide the result by +- * three to get coverage class as specified in IEEE 802.11-2007 table +- * 7-27. Values are rounded upwards. +- */ +- coverage = (distance + 449) / 450; +- if (coverage > 255) +- return 1; ++ if (*end) ++ return 1; ++ ++ /* ++ * Divide double the distance by the speed of light ++ * in m/usec (300) to get round-trip time in microseconds ++ * and then divide the result by three to get coverage class ++ * as specified in IEEE 802.11-2007 table 7-27. ++ * Values are rounded upwards. ++ */ ++ coverage = (distance + 449) / 450; ++ if (coverage > 255) ++ return 1; + +- NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage); ++ NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage); ++ } + + return 0; + nla_put_failure: + return -ENOBUFS; + } +-COMMAND(set, distance, "<distance>", ++COMMAND(set, distance, "<auto|distance>", + NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_distance, +- "Set appropriate coverage class for given link distance in meters.\n" ++ "Enable ACK timeout estimation algorithm (dynack) or set appropriate\n" ++ "coverage class for given link distance in meters.\n" ++ "To disable dynack set valid value for coverage class.\n" + "Valid values: 0 - 114750"); + + static int handle_txpower(struct nl80211_state *state, |