[PATCH] iw: setting txq parameters

["Jinsung Lee" <ljs@xxxxxxxxxxxxxxxxxx>]

This patch enables to set txq params such as aifs, cwmin, cwmax and txop for
each queue for VO, VI, BE, BK directly using ?iw? command.


Signed-off-by: Jinsung Lee <ljs@xxxxxxxxxxxxxxxxxx>
---

Index: iw-0.9.17/phy.c
===================================================================

*** a/iw-0.9.17/phy.c   2009-08-26 18:41:41.000000000 +0900
--- b/iw-0.9.17/phy.c   2009-11-10 23:53:49.000000000 +0900
*************** static int handle_rts(struct nl80211_sta
*** 140,142 ****
--- 140,216 ----
  COMMAND(set, rts, "<rts threshold|off>",
        NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_rts,
        "Set rts threshold.");
+
+ static int handle_txq_params(struct nl80211_state *state,
+                            struct nl_cb *cb, struct nl_msg *msg,
+                            int argc, char **argv)
+ {
+       __u8 queue, aifs;
+       __u16 txop, cwmin, cwmax;
+
+       struct nlattr *nl_txqs;
+
+       if (argc != 1)
+               return 1;
+
+       if (strcmp("off", argv[0]) == 0)
+               return 0;
+
+
+       queue = strtoul(argv[0], NULL, 10);
+
+       switch(queue) {
+        case 0:
+               printf("configuring TX queue for VO\n");
+               txop = 0;
+               cwmin = 7;
+               cwmax = 15;
+               aifs = 2;
+               break;
+        case 1:
+               printf("configuring TX queue for VI\n");
+               txop = 0;
+               cwmin = 15;
+               cwmax = 31;
+               aifs = 2;
+               break;
+        case 2:
+               printf("configuring TX queue for BE\n");
+               txop = 0;
+               cwmin = 31;
+               cwmax = 1023;
+               aifs = 3;
+               break;
+        case 3:
+               printf("configuring TX queue for BK\n");
+               txop = 0;
+               cwmin = 31;
+               cwmax = 1023;
+               aifs = 7;
+               break;
+        default:
+               printf("switch() error\n");
+               return -1;
+       }
+
+       nl_txqs = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
+       if (!nl_txqs)
+               return -ENOBUFS;
+
+               struct nlattr *nl_txq = nla_nest_start(msg, queue);
+               NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
+               NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, txop);
+               NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cwmin);
+               NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cwmax);
+               NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
+               nla_nest_end(msg, nl_txq);
+
+       nla_nest_end(msg, nl_txqs);
+
+       return 0;
+  nla_put_failure:
+       return -ENOBUFS;
+ }
+ COMMAND(set, txq_params, "<queue type in [0,1,2,3]|off>",
+       NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_txq_params,
+       "Set txq parameters.");


ÿôèº{.nÇ+?·?®?­?+%?Ëÿ±éݶ¥?wÿº{.nÇ+?·¥?{±ÿ«zW¬³ø§¶?¡Ü¨}©?²Æ zÚ&j:+v?¨þø¯ù®w¥þ?à2?Þ?¨è­Ú&¢)ß¡«a¶Úÿÿûàz¿äz¹Þ?ú+?ù???Ý¢jÿ?wèþf