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iw: add support for dynamic distance selection (supported by ath9k now)

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42689
This commit is contained in:
Felix Fietkau 2014-09-27 21:19:27 +00:00
parent d27893122d
commit ca25f76e82
3 changed files with 100 additions and 6 deletions
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94
package/network/utils/iw/patches/010-dynack.patch Normal file
View file

@ -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,

2
package/network/utils/iw/patches/120-antenna_gain.patch
View file

@ -1,6 +1,6 @@
--- a/phy.c
+++ b/phy.c
@@ -488,3 +488,31 @@ COMMAND(set, antenna, "<bitmap> | all |
@@ -495,3 +495,31 @@ COMMAND(set, antenna, "<bitmap> | all |
NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna,
"Set a bitmap of allowed antennas to use for TX and RX.\n"
"The driver may reject antenna configurations it cannot support.");

10
package/network/utils/iw/patches/200-reduce_size.patch
View file

@ -83,15 +83,15 @@
if (tb_msg[NL80211_ATTR_FEATURE_FLAGS]) {
unsigned int features = nla_get_u32(tb_msg[NL80211_ATTR_FEATURE_FLAGS]);
@@ -552,6 +561,7 @@ broken_combination:
if (features & NL80211_FEATURE_AP_SCAN)
printf("\tDevice supports AP scan.\n");
@@ -554,6 +563,7 @@ broken_combination:
if (features & NL80211_FEATURE_ACKTO_ESTIMATION)
printf("\tDevice supports ACK timeout estimation.\n");
}
+#endif
if (tb_msg[NL80211_ATTR_TDLS_SUPPORT])
printf("\tDevice supports T-DLS.\n");
@@ -601,6 +611,7 @@ TOPLEVEL(list, NULL, NL80211_CMD_GET_WIP
@@ -603,6 +613,7 @@ TOPLEVEL(list, NULL, NL80211_CMD_GET_WIP
"List all wireless devices and their capabilities.");
TOPLEVEL(phy, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info, NULL);
@ -99,7 +99,7 @@
static int handle_commands(struct nl80211_state *state,
struct nl_cb *cb, struct nl_msg *msg,
int argc, char **argv, enum id_input id)
@@ -613,6 +624,7 @@ static int handle_commands(struct nl8021
@@ -615,6 +626,7 @@ static int handle_commands(struct nl8021
}
TOPLEVEL(commands, NULL, NL80211_CMD_GET_WIPHY, 0, CIB_NONE, handle_commands,
"list all known commands and their decimal & hex value");