Add build system scaffolding and libc headers

1 files changed, 103 insertions, 0 deletions

diff --git a/include/arch/x86_64/scsi/scsi_netlink.h b/include/arch/x86_64/scsi/scsi_netlink.h
new file mode 100644
index 00000000..5097c94d
--- /dev/null
+++ b/include/arch/x86_64/scsi/scsi_netlink.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ *  SCSI Transport Netlink Interface
+ *    Used for the posting of outbound SCSI transport events
+ *
+ *  Copyright (C) 2006   James Smart, Emulex Corporation
+ */
+#ifndef SCSI_NETLINK_H
+#define SCSI_NETLINK_H
+
+#include <linux/netlink.h>
+#include <linux/types.h>
+
+/*
+ * This file intended to be included by both kernel and user space
+ */
+
+/* Single Netlink Message type to send all SCSI Transport messages */
+#define SCSI_TRANSPORT_MSG NLMSG_MIN_TYPE + 1
+
+/* SCSI Transport Broadcast Groups */
+/* leaving groups 0 and 1 unassigned */
+#define SCSI_NL_GRP_FC_EVENTS (1 << 2) /* Group 2 */
+#define SCSI_NL_GRP_CNT	      3
+
+/* SCSI_TRANSPORT_MSG event message header */
+struct scsi_nl_hdr {
+	__u8 version;
+	__u8 transport;
+	__u16 magic;
+	__u16 msgtype;
+	__u16 msglen;
+} __attribute__((aligned(sizeof(__u64))));
+
+/* scsi_nl_hdr->version value */
+#define SCSI_NL_VERSION 1
+
+/* scsi_nl_hdr->magic value */
+#define SCSI_NL_MAGIC 0xA1B2
+
+/* scsi_nl_hdr->transport value */
+#define SCSI_NL_TRANSPORT      0
+#define SCSI_NL_TRANSPORT_FC   1
+#define SCSI_NL_MAX_TRANSPORTS 2
+
+/* Transport-based scsi_nl_hdr->msgtype values are defined in each transport */
+
+/*
+ * GENERIC SCSI scsi_nl_hdr->msgtype Values
+ */
+/* kernel -> user */
+#define SCSI_NL_SHOST_VENDOR 0x0001
+/* user -> kernel */
+/* SCSI_NL_SHOST_VENDOR msgtype is kernel->user and user->kernel */
+
+/*
+ * Message Structures :
+ */
+
+/* macro to round up message lengths to 8byte boundary */
+#define SCSI_NL_MSGALIGN(len) (((len) + 7) & ~7)
+
+/*
+ * SCSI HOST Vendor Unique messages :
+ *   SCSI_NL_SHOST_VENDOR
+ *
+ * Note: The Vendor Unique message payload will begin directly after
+ * 	 this structure, with the length of the payload per vmsg_datalen.
+ *
+ * Note: When specifying vendor_id, be sure to read the Vendor Type and ID
+ *   formatting requirements specified below
+ */
+struct scsi_nl_host_vendor_msg {
+	struct scsi_nl_hdr snlh; /* must be 1st element ! */
+	__u64 vendor_id;
+	__u16 host_no;
+	__u16 vmsg_datalen;
+} __attribute__((aligned(sizeof(__u64))));
+
+/*
+ * Vendor ID:
+ *   If transports post vendor-unique events, they must pass a well-known
+ *   32-bit vendor identifier. This identifier consists of 8 bits indicating
+ *   the "type" of identifier contained, and 24 bits of id data.
+ *
+ *   Identifiers for each type:
+ *    PCI :  ID data is the 16 bit PCI Registered Vendor ID
+ */
+#define SCSI_NL_VID_TYPE_SHIFT 56
+#define SCSI_NL_VID_TYPE_MASK  ((__u64)0xFF << SCSI_NL_VID_TYPE_SHIFT)
+#define SCSI_NL_VID_TYPE_PCI   ((__u64)0x01 << SCSI_NL_VID_TYPE_SHIFT)
+#define SCSI_NL_VID_ID_MASK    (~SCSI_NL_VID_TYPE_MASK)
+
+#define INIT_SCSI_NL_HDR(hdr, t, mtype, mlen)     \
+	{                                         \
+		(hdr)->version = SCSI_NL_VERSION; \
+		(hdr)->transport = t;             \
+		(hdr)->magic = SCSI_NL_MAGIC;     \
+		(hdr)->msgtype = mtype;           \
+		(hdr)->msglen = mlen;             \
+	}
+
+#endif /* SCSI_NETLINK_H */