X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fscsi%2Fscsi_host.h;h=0fd4746ee39d4437e788c37b9a7f59d9b65dc11a;hb=0c326331c8b107abc0a160e8899d749150b8f76a;hp=68f461b7a8355401330a42b35f52aba9393e10db;hpb=f4ebc993759dc25dc3db6b6f1a13a23df8264d4b;p=linux-2.6

diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 68f461b7a8..0fd4746ee3 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -32,10 +32,16 @@ struct blk_queue_tags;
 #define SG_NONE 0
 #define SG_ALL 0xff
 
+#define MODE_UNKNOWN 0x00
+#define MODE_INITIATOR 0x01
+#define MODE_TARGET 0x02
 
 #define DISABLE_CLUSTERING 0
 #define ENABLE_CLUSTERING 1
 
+#define DISABLE_SG_CHAINING 0
+#define ENABLE_SG_CHAINING 1
+
 enum scsi_eh_timer_return {
 	EH_NOT_HANDLED,
 	EH_HANDLED,
@@ -145,9 +151,6 @@ struct scsi_host_template {
 	int (* transfer_response)(struct scsi_cmnd *,
 				  void (*done)(struct scsi_cmnd *));
 
-	/* Used as callback for the completion of task management request. */
-	int (* tsk_mgmt_response)(u64 mid, int result);
-
 	/*
 	 * This is an error handling strategy routine.  You don't need to
 	 * define one of these if you don't want to - there is a default
@@ -338,16 +341,10 @@ struct scsi_host_template {
 	 */
 	enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *);
 
-	/*
-	 * suspend support
-	 */
-	int (*resume)(struct scsi_device *);
-	int (*suspend)(struct scsi_device *, pm_message_t state);
-
 	/*
 	 * Name of proc directory
 	 */
-	char *proc_name;
+	const char *proc_name;
 
 	/*
 	 * Used to store the procfs directory if a driver implements the
@@ -413,6 +410,11 @@ struct scsi_host_template {
 	 */
 	unsigned char present;
 
+	/*
+	 * This specifies the mode that a LLD supports.
+	 */
+	unsigned supported_mode:2;
+
 	/*
 	 * true if this host adapter uses unchecked DMA onto an ISA bus.
 	 */
@@ -443,6 +445,15 @@ struct scsi_host_template {
 	 */
 	unsigned ordered_tag:1;
 
+	/*
+	 * true if the low-level driver can support sg chaining. this
+	 * will be removed eventually when all the drivers are
+	 * converted to support sg chaining.
+	 *
+	 * Status: OBSOLETE
+	 */
+	unsigned use_sg_chaining:1;
+
 	/*
 	 * Countdown for host blocking with no commands outstanding
 	 */
@@ -581,11 +592,13 @@ struct Scsi_Host {
 	 * Used to assign serial numbers to the cmds.
 	 * Protected by the host lock.
 	 */
-	unsigned long cmd_serial_number, cmd_pid; 
+	unsigned long cmd_serial_number;
 	
+	unsigned active_mode:2;
 	unsigned unchecked_isa_dma:1;
 	unsigned use_clustering:1;
 	unsigned use_blk_tcq:1;
+	unsigned use_sg_chaining:1;
 
 	/*
 	 * Host has requested that no further requests come through for the
@@ -677,6 +690,10 @@ struct Scsi_Host {
 #define shost_printk(prefix, shost, fmt, a...)	\
 	dev_printk(prefix, &(shost)->shost_gendev, fmt, ##a)
 
+static inline void *shost_priv(struct Scsi_Host *shost)
+{
+	return (void *)shost->hostdata;
+}
 
 int scsi_is_host_device(const struct device *);