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yaml --- r: 159003 b: refs/heads/master c: 68cb01c h: refs/heads/master i: 159001: d7ffd19 158999: 8e43ea9 v: v3
git-mirror · Jul 20, 2009 · 40b585d · 40b585d
1 parent 07d3b90
commit 40b585d
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e11d912a7dd4dfe388f38ba3080a6d067a57b23d
+refs/heads/master: 68cb01c1ba312add7c7cc7da1bbe98b3071904d1
diff --git a/trunk/net/rds/ib_sysctl.c b/trunk/net/rds/ib_sysctl.c
@@ -53,7 +53,17 @@ unsigned long rds_ib_sysctl_max_unsig_bytes = (16 << 20);
 static unsigned long rds_ib_sysctl_max_unsig_bytes_min = 1;
 static unsigned long rds_ib_sysctl_max_unsig_bytes_max = ~0UL;
 
-unsigned int rds_ib_sysctl_flow_control = 1;
+/*
+ * This sysctl does nothing.
+ *
+ * Backwards compatibility with RDS 3.0 wire protocol
+ * disables initial FC credit exchange.
+ * If it's ever possible to drop 3.0 support,
+ * setting this to 1 and moving init/refill of send/recv
+ * rings from ib_cm_connect_complete() back into ib_setup_qp()
+ * will cause credits to be added before protocol negotiation.
+ */
+unsigned int rds_ib_sysctl_flow_control = 0;
 
 ctl_table rds_ib_sysctl_table[] = {
 	{