Added ATA Pass-Through support to CAM

sys/cam/scsi/scsi_all.c:
        - Added scsi_ata_pass_16 method
          Which use ATA Pass-Through to send commands to the attached disk.

sys/cam/scsi/scsi_all.h:
        - Added defines for all missing ATA Pass-Through commands values.

        - Added scsi_ata_pass_16 method.

        - Fixed a comment typo while I'm here

Reviewed by:	mav
Approved by:	pjd (mentor)
MFC after:	2 weeks

1 files changed, 45 insertions, 0 deletions

diff --git a/sys/cam/scsi/scsi_all.c b/sys/cam/scsi/scsi_all.c
index 332732f..205cf22 100644
--- a/sys/cam/scsi/scsi_all.c
+++ b/sys/cam/scsi/scsi_all.c
@@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
 #include <cam/cam_queue.h>
 #include <cam/cam_xpt.h>
 #include <cam/scsi/scsi_all.h>
+#include <sys/ata.h>
 #include <sys/sbuf.h>
 #ifndef _KERNEL
 #include <camlib.h>
@@ -5855,6 +5856,50 @@ scsi_write_same(struct ccb_scsiio *csio, u_int32_t retries,
 }
 
 void
+scsi_ata_pass_16(struct ccb_scsiio *csio, u_int32_t retries,
+		 void (*cbfcnp)(struct cam_periph *, union ccb *),
+		 u_int32_t flags, u_int8_t tag_action,
+		 u_int8_t protocol, u_int8_t ata_flags, u_int16_t features,
+		 u_int16_t sector_count, uint64_t lba, u_int8_t command,
+		 u_int8_t control, u_int8_t *data_ptr, u_int16_t dxfer_len,
+		 u_int8_t sense_len, u_int32_t timeout)
+{
+	struct ata_pass_16 *ata_cmd;
+
+	ata_cmd = (struct ata_pass_16 *)&csio->cdb_io.cdb_bytes;
+	ata_cmd->opcode = ATA_PASS_16;
+	ata_cmd->protocol = protocol;
+	ata_cmd->flags = ata_flags;
+	ata_cmd->features_ext = features >> 8;
+	ata_cmd->features = features;
+	ata_cmd->sector_count_ext = sector_count >> 8;
+	ata_cmd->sector_count = sector_count;
+	ata_cmd->lba_low = lba;
+	ata_cmd->lba_mid = lba >> 8;
+	ata_cmd->lba_high = lba >> 16;
+	ata_cmd->device = ATA_DEV_LBA;
+	if (protocol & AP_EXTEND) {
+		ata_cmd->lba_low_ext = lba >> 24;
+		ata_cmd->lba_mid_ext = lba >> 32;
+		ata_cmd->lba_high_ext = lba >> 40;
+	} else
+		ata_cmd->device |= (lba >> 24) & 0x0f;
+	ata_cmd->command = command;
+	ata_cmd->control = control;
+
+	cam_fill_csio(csio,
+		      retries,
+		      cbfcnp,
+		      flags,
+		      tag_action,
+		      data_ptr,
+		      dxfer_len,
+		      sense_len,
+		      sizeof(*ata_cmd),
+		      timeout);
+}
+
+void
 scsi_unmap(struct ccb_scsiio *csio, u_int32_t retries,
 	   void (*cbfcnp)(struct cam_periph *, union ccb *),
 	   u_int8_t tag_action, u_int8_t byte2,