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authorDavid Howells <dhowells@redhat.com>2012-12-19 20:07:23 +0400
committerDavid Howells <dhowells@redhat.com>2012-12-19 20:07:23 +0400
commitee7afd717c26299c85675d84c7ff89a9c989f4fa (patch)
treef4958ba35d76fd61a9215d06314a9378881fc4d1 /include/uapi/scsi/scsi_netlink.h
parent752451f01c4567b506bf4343082682dbb8fb30dd (diff)
downloadlinux-ee7afd717c26299c85675d84c7ff89a9c989f4fa.tar.xz
UAPI: (Scripted) Disintegrate include/scsi
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'include/uapi/scsi/scsi_netlink.h')
-rw-r--r--include/uapi/scsi/scsi_netlink.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/include/uapi/scsi/scsi_netlink.h b/include/uapi/scsi/scsi_netlink.h
new file mode 100644
index 000000000000..62b4edab15d3
--- /dev/null
+++ b/include/uapi/scsi/scsi_netlink.h
@@ -0,0 +1,123 @@
+/*
+ * SCSI Transport Netlink Interface
+ * Used for the posting of outbound SCSI transport events
+ *
+ * Copyright (C) 2006 James Smart, Emulex Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#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 {
+ uint8_t version;
+ uint8_t transport;
+ uint16_t magic;
+ uint16_t msgtype;
+ uint16_t msglen;
+} __attribute__((aligned(sizeof(uint64_t))));
+
+/* 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 ! */
+ uint64_t vendor_id;
+ uint16_t host_no;
+ uint16_t vmsg_datalen;
+} __attribute__((aligned(sizeof(uint64_t))));
+
+
+/*
+ * 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 */
+