From 654133889709631cb7aa9390134cada1b7067c86 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Mon, 29 May 2006 08:25:31 +0000
Subject: Handle multi-sector reads by splitting them into subcommands.

---
 src/include/gpxe/aoe.h | 2 ++
 src/include/gpxe/ata.h | 3 +++
 2 files changed, 5 insertions(+)

(limited to 'src/include')

diff --git a/src/include/gpxe/aoe.h b/src/include/gpxe/aoe.h
index 094feb5c3..2e13d7a8d 100644
--- a/src/include/gpxe/aoe.h
+++ b/src/include/gpxe/aoe.h
@@ -110,6 +110,8 @@ struct aoe_session {
 extern void aoe_open ( struct aoe_session *aoe );
 extern void aoe_close ( struct aoe_session *aoe );
 extern int aoe_issue ( struct aoe_session *aoe, struct ata_command *command );
+extern int aoe_issue_split ( struct aoe_session *aoe,
+			     struct ata_command *command );
 
 /** An AoE device */
 struct aoe_device {
diff --git a/src/include/gpxe/ata.h b/src/include/gpxe/ata.h
index ecc9c5b4e..195e361cf 100644
--- a/src/include/gpxe/ata.h
+++ b/src/include/gpxe/ata.h
@@ -117,6 +117,9 @@ struct ata_cb {
 /** Master ("device 0") flag in the ATA device register */
 #define ATA_DEV_MASTER 0x00
 
+/** Mask of non-LBA portion of device register */
+#define ATA_DEV_MASK 0xf0
+
 /** "Read sectors" command */
 #define ATA_CMD_READ 0x20
 
-- 
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