Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / target / iscsi / iscsi_target_seq_pdu_list.h

diff --git a/kernel/drivers/target/iscsi/iscsi_target_seq_pdu_list.h b/kernel/drivers/target/iscsi/iscsi_target_seq_pdu_list.h
new file mode 100644 (file)
index 0000000..d5b1537
--- /dev/null
+++ b/kernel/drivers/target/iscsi/iscsi_target_seq_pdu_list.h
@@ -0,0 +1,86 @@
+#ifndef ISCSI_SEQ_AND_PDU_LIST_H
+#define ISCSI_SEQ_AND_PDU_LIST_H
+
+/* struct iscsi_pdu->status */
+#define DATAOUT_PDU_SENT                       1
+
+/* struct iscsi_seq->type */
+#define SEQTYPE_IMMEDIATE                      1
+#define SEQTYPE_UNSOLICITED                    2
+#define SEQTYPE_NORMAL                         3
+
+/* struct iscsi_seq->status */
+#define DATAOUT_SEQUENCE_GOT_R2T               1
+#define DATAOUT_SEQUENCE_WITHIN_COMMAND_RECOVERY 2
+#define DATAOUT_SEQUENCE_COMPLETE              3
+
+/* iscsi_determine_counts_for_list() type */
+#define PDULIST_NORMAL                         1
+#define PDULIST_IMMEDIATE                      2
+#define PDULIST_UNSOLICITED                    3
+#define PDULIST_IMMEDIATE_AND_UNSOLICITED      4
+
+/* struct iscsi_pdu->type */
+#define PDUTYPE_IMMEDIATE                      1
+#define PDUTYPE_UNSOLICITED                    2
+#define PDUTYPE_NORMAL                         3
+
+/* struct iscsi_pdu->status */
+#define ISCSI_PDU_NOT_RECEIVED                 0
+#define ISCSI_PDU_RECEIVED_OK                  1
+#define ISCSI_PDU_CRC_FAILED                   2
+#define ISCSI_PDU_TIMED_OUT                    3
+
+/* struct iscsi_build_list->randomize */
+#define RANDOM_DATAIN_PDU_OFFSETS              0x01
+#define RANDOM_DATAIN_SEQ_OFFSETS              0x02
+#define RANDOM_DATAOUT_PDU_OFFSETS             0x04
+#define RANDOM_R2T_OFFSETS                     0x08
+
+/* struct iscsi_build_list->data_direction */
+#define ISCSI_PDU_READ                         0x01
+#define ISCSI_PDU_WRITE                                0x02
+
+struct iscsi_build_list {
+       int             data_direction;
+       int             randomize;
+       int             type;
+       int             immediate_data_length;
+};
+
+struct iscsi_pdu {
+       int             status;
+       int             type;
+       u8              flags;
+       u32             data_sn;
+       u32             length;
+       u32             offset;
+       u32             pdu_send_order;
+       u32             seq_no;
+} ____cacheline_aligned;
+
+struct iscsi_seq {
+       int             sent;
+       int             status;
+       int             type;
+       u32             data_sn;
+       u32             first_datasn;
+       u32             last_datasn;
+       u32             next_burst_len;
+       u32             pdu_start;
+       u32             pdu_count;
+       u32             offset;
+       u32             orig_offset;
+       u32             pdu_send_order;
+       u32             r2t_sn;
+       u32             seq_send_order;
+       u32             seq_no;
+       u32             xfer_len;
+} ____cacheline_aligned;
+
+extern int iscsit_build_pdu_and_seq_lists(struct iscsi_cmd *, u32);
+extern struct iscsi_pdu *iscsit_get_pdu_holder(struct iscsi_cmd *, u32, u32);
+extern struct iscsi_pdu *iscsit_get_pdu_holder_for_seq(struct iscsi_cmd *, struct iscsi_seq *);
+extern struct iscsi_seq *iscsit_get_seq_holder(struct iscsi_cmd *, u32, u32);
+
+#endif /* ISCSI_SEQ_AND_PDU_LIST_H */