Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / infiniband / ulp / isert / isert_proto.h

diff --git a/kernel/drivers/infiniband/ulp/isert/isert_proto.h b/kernel/drivers/infiniband/ulp/isert/isert_proto.h
new file mode 100644 (file)
index 0000000..4dccd31
--- /dev/null
+++ b/kernel/drivers/infiniband/ulp/isert/isert_proto.h
@@ -0,0 +1,47 @@
+/* From iscsi_iser.h */
+
+struct iser_hdr {
+       u8      flags;
+       u8      rsvd[3];
+       __be32  write_stag; /* write rkey */
+       __be64  write_va;
+       __be32  read_stag;  /* read rkey */
+       __be64  read_va;
+} __packed;
+
+/*Constant PDU lengths calculations */
+#define ISER_HEADERS_LEN  (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr))
+
+#define ISER_RECV_DATA_SEG_LEN  8192
+#define ISER_RX_PAYLOAD_SIZE    (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN)
+#define ISER_RX_LOGIN_SIZE      (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN)
+
+/* QP settings */
+/* Maximal bounds on received asynchronous PDUs */
+#define ISERT_MAX_TX_MISC_PDUS 4 /* NOOP_IN(2) , ASYNC_EVENT(2)   */
+
+#define ISERT_MAX_RX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1),         *
+                                  * SCSI_TMFUNC(2), LOGOUT(1) */
+
+#define ISCSI_DEF_XMIT_CMDS_MAX 128 /* from libiscsi.h, must be power of 2 */
+
+#define ISERT_QP_MAX_RECV_DTOS (ISCSI_DEF_XMIT_CMDS_MAX)
+
+#define ISERT_MIN_POSTED_RX    (ISCSI_DEF_XMIT_CMDS_MAX >> 2)
+
+#define ISERT_INFLIGHT_DATAOUTS        8
+
+#define ISERT_QP_MAX_REQ_DTOS  (ISCSI_DEF_XMIT_CMDS_MAX *    \
+                               (1 + ISERT_INFLIGHT_DATAOUTS) + \
+                               ISERT_MAX_TX_MISC_PDUS  + \
+                               ISERT_MAX_RX_MISC_PDUS)
+
+#define ISER_RX_PAD_SIZE       (ISER_RECV_DATA_SEG_LEN + 4096 - \
+               (ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge)))
+
+#define ISER_VER       0x10
+#define ISER_WSV       0x08
+#define ISER_RSV       0x04
+#define ISCSI_CTRL     0x10
+#define ISER_HELLO     0x20
+#define ISER_HELLORPLY 0x30