Blame view
include/scsi/scsi_netlink.h
4.25 KB
84314fd47 [SCSI] SCSI and F... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
/* * 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 |
22447be7d [SCSI] scsi_netli... |
24 |
#include <linux/netlink.h> |
84314fd47 [SCSI] SCSI and F... |
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 |
/* * 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 |
22447be7d [SCSI] scsi_netli... |
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 |
/* 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)))); |
84314fd47 [SCSI] SCSI and F... |
92 93 94 95 96 97 98 99 100 101 102 |
/* * 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 */ |
f14e2e29c [SCSI] SCSI & FC ... |
103 |
#define SCSI_NL_VID_TYPE_SHIFT 56 |
083c8c1e6 scsi: use __uX ty... |
104 105 |
#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) |
f14e2e29c [SCSI] SCSI & FC ... |
106 |
#define SCSI_NL_VID_ID_MASK (~ SCSI_NL_VID_TYPE_MASK) |
84314fd47 [SCSI] SCSI and F... |
107 108 109 110 111 112 113 114 115 116 |
#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; \ } |
22447be7d [SCSI] scsi_netli... |
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 |
#ifdef __KERNEL__ #include <scsi/scsi_host.h> /* Exported Kernel Interfaces */ int scsi_nl_add_transport(u8 tport, int (*msg_handler)(struct sk_buff *), void (*event_handler)(struct notifier_block *, unsigned long, void *)); void scsi_nl_remove_transport(u8 tport); int scsi_nl_add_driver(u64 vendor_id, struct scsi_host_template *hostt, int (*nlmsg_handler)(struct Scsi_Host *shost, void *payload, u32 len, u32 pid), void (*nlevt_handler)(struct notifier_block *nb, unsigned long event, void *notify_ptr)); void scsi_nl_remove_driver(u64 vendor_id); void scsi_nl_send_transport_msg(u32 pid, struct scsi_nl_hdr *hdr); int scsi_nl_send_vendor_msg(u32 pid, unsigned short host_no, u64 vendor_id, char *data_buf, u32 data_len); #endif /* __KERNEL__ */ |
84314fd47 [SCSI] SCSI and F... |
139 |
#endif /* SCSI_NETLINK_H */ |