diff options
Diffstat (limited to 'include/scsi/scsi_host.h')
| -rw-r--r-- | include/scsi/scsi_host.h | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 3b8a6a85c2f..0fd4746ee39 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 @@ -408,6 +411,11 @@ 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. */ unsigned unchecked_isa_dma:1; @@ -438,6 +446,15 @@ 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 + * + * Status: OBSOLETE + */ + unsigned use_sg_chaining:1; + + /* * Countdown for host blocking with no commands outstanding */ unsigned int max_host_blocked; @@ -575,11 +592,13 @@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 |