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-rw-r--r--drivers/scsi/aacraid/aacraid.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 30fd8d6e3f31..66dbb6d2c506 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -532,6 +532,13 @@ struct aac_driver_ident
#define AAC_QUIRK_MASTER 0x0008
/*
+ * Some adapter firmware perform poorly when it must split up scatter gathers
+ * in order to deal with the limits of the underlying CHIM. This limit in this
+ * class of adapters is 17 scatter gather elements.
+ */
+#define AAC_QUIRK_17SG 0x0010
+
+/*
* The adapter interface specs all queues to be located in the same
* physically contigous block. The host structure that defines the
* commuication queues will assume they are each a separate physically
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