scsi: bfa: Stop using the SCSI pointer

Set .cmd_size in the SCSI host template instead of using the SCSI pointer
from struct scsi_cmnd. This patch prepares for removal of the SCSI pointer
from struct scsi_cmnd.

Link: https://lore.kernel.org/r/20220218195117.25689-17-bvanassche@acm.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
index 829345b514d1..c03b225ea1ba 100644
--- a/drivers/scsi/bfa/bfad_im.h
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -43,6 +43,22 @@ u32 bfad_im_supported_speeds(struct bfa_s *bfa);
  */
 #define IO_DONE_BIT			0
 
+/**
+ * struct bfad_cmd_priv - private data per SCSI command.
+ * @status: Lowest bit represents IO_DONE. The next seven bits hold a value of
+ * type enum bfi_tskim_status.
+ * @wq: Wait queue used to wait for completion of an operation.
+ */
+struct bfad_cmd_priv {
+	unsigned long status;
+	wait_queue_head_t *wq;
+};
+
+static inline struct bfad_cmd_priv *bfad_priv(struct scsi_cmnd *cmd)
+{
+	return scsi_cmd_priv(cmd);
+}
+
 struct bfad_itnim_data_s {
 	struct bfad_itnim_s *itnim;
 };