[SCSI] qla2xxx: Implementation of bidirectional.

[jejb: merge fix for introduced warning]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 980b5a7d6471..a678ed5d6884 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -381,6 +381,44 @@ struct init_cb_24xx {
 /*
  * ISP queue - command entry structure definition.
  */
+#define COMMAND_BIDIRECTIONAL 0x75
+struct cmd_bidir {
+        uint8_t entry_type;             /* Entry type. */
+        uint8_t entry_count;            /* Entry count. */
+        uint8_t sys_define;             /* System defined */
+        uint8_t entry_status;           /* Entry status. */
+
+        uint32_t handle;                /* System handle. */
+
+        uint16_t nport_handle;          /* N_PORT hanlde. */
+
+        uint16_t timeout;               /* Commnad timeout. */
+
+        uint16_t wr_dseg_count;         /* Write Data segment count. */
+        uint16_t rd_dseg_count;         /* Read Data segment count. */
+
+        struct scsi_lun lun;            /* FCP LUN (BE). */
+
+        uint16_t control_flags;         /* Control flags. */
+#define BD_WRAP_BACK                    BIT_3
+#define BD_READ_DATA                    BIT_1
+#define BD_WRITE_DATA                   BIT_0
+
+        uint16_t fcp_cmnd_dseg_len;             /* Data segment length. */
+        uint32_t fcp_cmnd_dseg_address[2];      /* Data segment address. */
+
+        uint16_t reserved[2];                   /* Reserved */
+
+        uint32_t rd_byte_count;                 /* Total Byte count Read. */
+        uint32_t wr_byte_count;                 /* Total Byte count write. */
+
+        uint8_t port_id[3];                     /* PortID of destination port.*/
+        uint8_t vp_index;
+
+        uint32_t fcp_data_dseg_address[2];      /* Data segment address. */
+        uint16_t fcp_data_dseg_len;             /* Data segment length. */
+};
+
 #define COMMAND_TYPE_6  0x48            /* Command Type 6 entry */
 struct cmd_type_6 {
         uint8_t entry_type;             /* Entry type. */