---

yaml --- r: 161118 b: refs/heads/master c: 05cc739 h: refs/heads/master v: v3
git-mirror · Sep 10, 2009 · 56f356b · 56f356b
1 parent b41295f
commit 56f356b
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b2f0091fbf8b475fa09b5e1712e0ab84cb3e1ca4
+refs/heads/master: 05cc7390735c49357b9ae67bf97f1c1579547f5b
diff --git a/trunk/drivers/scsi/fcoe/fcoe.c b/trunk/drivers/scsi/fcoe/fcoe.c
@@ -49,6 +49,12 @@ MODULE_AUTHOR("Open-FCoE.org");
 MODULE_DESCRIPTION("FCoE");
 MODULE_LICENSE("GPL v2");
 
+/* Performance tuning parameters for fcoe */
+static unsigned int fcoe_ddp_min;
+module_param_named(ddp_min, fcoe_ddp_min, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ddp_min, "Minimum I/O size in bytes for "	\
+		 "Direct Data Placement (DDP).");
+
 /* fcoe host list */
 LIST_HEAD(fcoe_hostlist);
 DEFINE_RWLOCK(fcoe_hostlist_lock);
@@ -414,7 +420,8 @@ static int fcoe_shost_config(struct fc_lport *lp, struct Scsi_Host *shost,
  */
 bool fcoe_oem_match(struct fc_frame *fp)
 {
-	return fc_fcp_is_read(fr_fsp(fp));
+	return fc_fcp_is_read(fr_fsp(fp)) &&
+		(fr_fsp(fp)->data_len > fcoe_ddp_min);
 }
 
 /**