1138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 24e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones * Copyright 2007-2010 Red Hat, Inc. 3138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * by Peter Jones <pjones@redhat.com> 4138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Copyright 2008 IBM, Inc. 5138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * by Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 6138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Copyright 2008 7138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * by Konrad Rzeszutek <ketuzsezr@darnok.org> 8138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 9138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * This code exposes the iSCSI Boot Format Table to userland via sysfs. 10138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 11138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * This program is free software; you can redistribute it and/or modify 12138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * it under the terms of the GNU General Public License v2.0 as published by 13138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * the Free Software Foundation 14138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 15138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * This program is distributed in the hope that it will be useful, 16138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * but WITHOUT ANY WARRANTY; without even the implied warranty of 17138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * GNU General Public License for more details. 19138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 20138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Changelog: 21138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 224e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones * 06 Jan 2010 - Peter Jones <pjones@redhat.com> 234e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones * New changelog entries are in the git log from now on. Not here. 244e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones * 25138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 14 Mar 2008 - Konrad Rzeszutek <ketuzsezr@darnok.org> 26138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Updated comments and copyrights. (v0.4.9) 27138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 28138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 11 Feb 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 29138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Converted to using ibft_addr. (v0.4.8) 30138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 31138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 8 Feb 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 32138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Combined two functions in one: reserve_ibft_region. (v0.4.7) 33138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 34138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 30 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 35138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added logic to handle IPv6 addresses. (v0.4.6) 36138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 37138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 25 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 38138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added logic to handle badly not-to-spec iBFT. (v0.4.5) 39138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 40138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 4 Jan 2008 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 41138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added __init to function declarations. (v0.4.4) 42138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 43138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 21 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 44138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Updated kobject registration, combined unregister functions in one 45138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * and code and style cleanup. (v0.4.3) 46138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 47138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 5 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 48138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added end-markers to enums and re-organized kobject registration. (v0.4.2) 49138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 50138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 4 Dec 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 51138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Created 'device' sysfs link to the NIC and style cleanup. (v0.4.1) 52138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 53138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 28 Nov 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 54138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added sysfs-ibft documentation, moved 'find_ibft' function to 55138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * in its own file and added text attributes for every struct field. (v0.4) 56138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 57138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 21 Nov 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 58138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added text attributes emulating OpenFirmware /proc/device-tree naming. 59138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Removed binary /sysfs interface (v0.3) 60138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 61138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 29 Aug 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 62138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Added functionality in setup.c to reserve iBFT region. (v0.2) 63138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 64138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 27 Aug 2007 - Konrad Rzeszutek <konradr@linux.vnet.ibm.com> 65138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * First version exposing iBFT data via a binary /sysfs. (v0.1) 66138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 67138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 68138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 69138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 70138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/blkdev.h> 71138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/capability.h> 72138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/ctype.h> 73138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/device.h> 74138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/err.h> 75138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/init.h> 76138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/iscsi_ibft.h> 77138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/limits.h> 78138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/module.h> 79138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/pci.h> 80138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/slab.h> 81138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/stat.h> 82138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/string.h> 83138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek#include <linux/types.h> 844e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones#include <linux/acpi.h> 85b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie#include <linux/iscsi_boot_sysfs.h> 86138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 874e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones#define IBFT_ISCSI_VERSION "0.5.0" 884e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones#define IBFT_ISCSI_DATE "2010-Feb-25" 89138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 9085ee7a1d39d75d23d21f3871f6dc9b87d572747aJoe PerchesMODULE_AUTHOR("Peter Jones <pjones@redhat.com> and " 9185ee7a1d39d75d23d21f3871f6dc9b87d572747aJoe Perches "Konrad Rzeszutek <ketuzsezr@darnok.org>"); 92138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad RzeszutekMODULE_DESCRIPTION("sysfs interface to BIOS iBFT information"); 93138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad RzeszutekMODULE_LICENSE("GPL"); 94138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad RzeszutekMODULE_VERSION(IBFT_ISCSI_VERSION); 95138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 96138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_hdr { 97138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 id; 98138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 version; 99138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 length; 100138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 index; 101138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 flags; 102138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} __attribute__((__packed__)); 103138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 104138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_control { 105138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_hdr hdr; 106138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 extensions; 107138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 initiator_off; 108138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 nic0_off; 109138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 tgt0_off; 110138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 nic1_off; 111138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 tgt1_off; 112138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} __attribute__((__packed__)); 113138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 114138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_initiator { 115138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_hdr hdr; 116138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char isns_server[16]; 117138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char slp_server[16]; 118138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char pri_radius_server[16]; 119138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char sec_radius_server[16]; 120138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 initiator_name_len; 121138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 initiator_name_off; 122138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} __attribute__((__packed__)); 123138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 124138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_nic { 125138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_hdr hdr; 126138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char ip_addr[16]; 127138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 subnet_mask_prefix; 128138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 origin; 129138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char gateway[16]; 130138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char primary_dns[16]; 131138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char secondary_dns[16]; 132138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char dhcp[16]; 133138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 vlan; 134138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char mac[6]; 135138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 pci_bdf; 136138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 hostname_len; 137138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 hostname_off; 138138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} __attribute__((__packed__)); 139138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 140138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_tgt { 141138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_hdr hdr; 142138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char ip_addr[16]; 143138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 port; 144138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char lun[8]; 145138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 chap_type; 146138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 nic_assoc; 147138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 tgt_name_len; 148138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 tgt_name_off; 149138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 chap_name_len; 150138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 chap_name_off; 151138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 chap_secret_len; 152138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 chap_secret_off; 153138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 rev_chap_name_len; 154138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 rev_chap_name_off; 155138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 rev_chap_secret_len; 156138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 rev_chap_secret_off; 157138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} __attribute__((__packed__)); 158138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 159138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 160138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * The kobject different types and its names. 161138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * 162138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek*/ 163138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekenum ibft_id { 164138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_reserved = 0, /* We don't support. */ 165138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_control = 1, /* Should show up only once and is not exported. */ 166138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_initiator = 2, 167138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_nic = 3, 168138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_target = 4, 169138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_extensions = 5, /* We don't support. */ 170138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek id_end_marker, 171138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek}; 172138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 173138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 174138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * The kobject and attribute structures. 175138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 176138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 177138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstruct ibft_kobject { 1784e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones struct acpi_table_ibft *header; 179138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek union { 180138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_initiator *initiator; 181138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_nic *nic; 182138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_tgt *tgt; 183138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_hdr *hdr; 184138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek }; 185138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek}; 186138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 187b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic struct iscsi_boot_kset *boot_kset; 188138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 189138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic const char nulls[16]; 190138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 191138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 192138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Helper functions to parse data properly. 193138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 194138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic ssize_t sprintf_ipaddr(char *buf, u8 *ip) 195138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 196138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char *str = buf; 197138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 198138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (ip[0] == 0 && ip[1] == 0 && ip[2] == 0 && ip[3] == 0 && 199138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek ip[4] == 0 && ip[5] == 0 && ip[6] == 0 && ip[7] == 0 && 200138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek ip[8] == 0 && ip[9] == 0 && ip[10] == 0xff && ip[11] == 0xff) { 201138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* 202138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * IPV4 203138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 20463779436ab4ad0867bcea53bf853b0004d7b895dHarvey Harrison str += sprintf(buf, "%pI4", ip + 12); 205138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } else { 206138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* 207138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * IPv6 208138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 2095b095d98928fdb9e3b75be20a54b7a6cbf6ca9adHarvey Harrison str += sprintf(str, "%pI6", ip); 210138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 211138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "\n"); 212138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return str - buf; 213138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 214138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 215138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic ssize_t sprintf_string(char *str, int len, char *buf) 216138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 217138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return sprintf(str, "%.*s\n", len, buf); 218138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 219138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 220138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 221138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Helper function to verify the IBFT header. 222138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 223138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic int ibft_verify_hdr(char *t, struct ibft_hdr *hdr, int id, int length) 224138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 225138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (hdr->id != id) { 226b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie printk(KERN_ERR "iBFT error: We expected the %s " \ 227138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek "field header.id to have %d but " \ 228b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie "found %d instead!\n", t, id, hdr->id); 229138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return -ENODEV; 230138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 231138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (hdr->length != length) { 232b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie printk(KERN_ERR "iBFT error: We expected the %s " \ 233138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek "field header.length to have %d but " \ 234b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie "found %d instead!\n", t, length, hdr->length); 235138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return -ENODEV; 236138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 237138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 238138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 239138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 240138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 241138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 242138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Routines for parsing the iBFT data to be human readable. 243138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 244b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic ssize_t ibft_attr_show_initiator(void *data, int type, char *buf) 245138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 246b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 247138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_initiator *initiator = entry->initiator; 248138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek void *ibft_loc = entry->header; 249138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char *str = buf; 250138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 251138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (!initiator) 252138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 253138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 254b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 255b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_INDEX: 256138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", initiator->hdr.index); 257138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 258b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_FLAGS: 259138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", initiator->hdr.flags); 260138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 261b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_ISNS_SERVER: 262138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, initiator->isns_server); 263138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 264b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_SLP_SERVER: 265138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, initiator->slp_server); 266138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 267b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_PRI_RADIUS_SERVER: 268138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, initiator->pri_radius_server); 269138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 270b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_SEC_RADIUS_SERVER: 271138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, initiator->sec_radius_server); 272138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 273b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_INITIATOR_NAME: 274138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, initiator->initiator_name_len, 275138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + 276138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek initiator->initiator_name_off); 277138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 278138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek default: 279138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 280138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 281138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 282138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return str - buf; 283138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 284138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 285b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic ssize_t ibft_attr_show_nic(void *data, int type, char *buf) 286138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 287b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 288138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_nic *nic = entry->nic; 289138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek void *ibft_loc = entry->header; 290138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char *str = buf; 29100e7825b943f486e80ff1305cd0594d8791870f8Joe Perches __be32 val; 292138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 293138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (!nic) 294138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 295138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 296b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 297b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_INDEX: 298138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", nic->hdr.index); 299138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 300b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_FLAGS: 301138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", nic->hdr.flags); 302138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 303b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_IP_ADDR: 304138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, nic->ip_addr); 305138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 306b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_SUBNET_MASK: 30700e7825b943f486e80ff1305cd0594d8791870f8Joe Perches val = cpu_to_be32(~((1 << (32-nic->subnet_mask_prefix))-1)); 30800e7825b943f486e80ff1305cd0594d8791870f8Joe Perches str += sprintf(str, "%pI4", &val); 309138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 310b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_ORIGIN: 311138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", nic->origin); 312138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 313b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_GATEWAY: 314138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, nic->gateway); 315138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 316b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_PRIMARY_DNS: 317138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, nic->primary_dns); 318138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 319b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_SECONDARY_DNS: 320138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, nic->secondary_dns); 321138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 322b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_DHCP: 323138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, nic->dhcp); 324138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 325b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_VLAN: 326138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", nic->vlan); 327138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 328b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_MAC: 3292c35294853b2e977bdfc9e401b7b6d881fcaa69bhartleys str += sprintf(str, "%pM\n", nic->mac); 330138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 331b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_HOSTNAME: 332138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, nic->hostname_len, 333138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + nic->hostname_off); 334138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 335138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek default: 336138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 337138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 338138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 339138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return str - buf; 340138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek}; 341138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 342b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic ssize_t ibft_attr_show_target(void *data, int type, char *buf) 343138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 344b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 345138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_tgt *tgt = entry->tgt; 346138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek void *ibft_loc = entry->header; 347138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek char *str = buf; 348138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek int i; 349138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 350138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (!tgt) 351138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 352138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 353b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 354b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_INDEX: 355138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", tgt->hdr.index); 356138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 357b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_FLAGS: 358138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", tgt->hdr.flags); 359138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 360b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_IP_ADDR: 361138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_ipaddr(str, tgt->ip_addr); 362138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 363b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_PORT: 364138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", tgt->port); 365138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 366b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_LUN: 367138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek for (i = 0; i < 8; i++) 368138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%x", (u8)tgt->lun[i]); 369138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "\n"); 370138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 371b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_NIC_ASSOC: 372138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", tgt->nic_assoc); 373138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 374b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_TYPE: 375138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf(str, "%d\n", tgt->chap_type); 376138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 377b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_NAME: 378138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, tgt->tgt_name_len, 379138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + tgt->tgt_name_off); 380138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 381b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_NAME: 382138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, tgt->chap_name_len, 383138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + tgt->chap_name_off); 384138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 385b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_SECRET: 386138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, tgt->chap_secret_len, 387138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + tgt->chap_secret_off); 388138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 389b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_REV_CHAP_NAME: 390138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, tgt->rev_chap_name_len, 391138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + 392138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek tgt->rev_chap_name_off); 393138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 394b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 395138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek str += sprintf_string(str, tgt->rev_chap_secret_len, 396138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (char *)ibft_loc + 397138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek tgt->rev_chap_secret_off); 398138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 399138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek default: 400138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 401138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 402138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 403138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return str - buf; 404138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 405138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 406138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic int __init ibft_check_device(void) 407138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 408138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek int len; 409138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 *pos; 410138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u8 csum = 0; 411138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 4124e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones len = ibft_addr->header.length; 413138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 414138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* Sanity checking of iBFT. */ 4154e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones if (ibft_addr->header.revision != 1) { 416138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek printk(KERN_ERR "iBFT module supports only revision 1, " \ 4174e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones "while this is %d.\n", 4184e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones ibft_addr->header.revision); 419138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return -ENOENT; 420138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 421138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek for (pos = (u8 *)ibft_addr; pos < (u8 *)ibft_addr + len; pos++) 422138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek csum += *pos; 423138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 424138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (csum) { 425138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek printk(KERN_ERR "iBFT has incorrect checksum (0x%x)!\n", csum); 426138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return -ENOENT; 427138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 428138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 429138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 430138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 431138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 432138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 433b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie * Helper routiners to check to determine if the entry is valid 434b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie * in the proper iBFT structure. 435b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie */ 436587a1f1659e8b330b8738ef4901832a2b63f0bedAl Virostatic umode_t ibft_check_nic_for(void *data, int type) 437b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie{ 438b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 439b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_nic *nic = entry->nic; 440587a1f1659e8b330b8738ef4901832a2b63f0bedAl Viro umode_t rc = 0; 441b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 442b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 443b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_INDEX: 444b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_FLAGS: 445b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 446b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 447b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_IP_ADDR: 448b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(nic->ip_addr, nulls, sizeof(nic->ip_addr))) 449b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 450b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 451b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_SUBNET_MASK: 452b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (nic->subnet_mask_prefix) 453b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 454b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 455b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_ORIGIN: 456b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 457b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 458b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_GATEWAY: 459b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(nic->gateway, nulls, sizeof(nic->gateway))) 460b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 461b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 462b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_PRIMARY_DNS: 463b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(nic->primary_dns, nulls, 464b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(nic->primary_dns))) 465b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 466b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 467b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_SECONDARY_DNS: 468b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(nic->secondary_dns, nulls, 469b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(nic->secondary_dns))) 470b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 471b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 472b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_DHCP: 473b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(nic->dhcp, nulls, sizeof(nic->dhcp))) 474b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 475b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 476b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_VLAN: 477b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_MAC: 478b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 479b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 480b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_ETH_HOSTNAME: 481b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (nic->hostname_off) 482b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 483b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 484b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie default: 485b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 486b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 487b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 488b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return rc; 489b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie} 490b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 491587a1f1659e8b330b8738ef4901832a2b63f0bedAl Virostatic umode_t __init ibft_check_tgt_for(void *data, int type) 492b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie{ 493b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 494b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_tgt *tgt = entry->tgt; 495587a1f1659e8b330b8738ef4901832a2b63f0bedAl Viro umode_t rc = 0; 496b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 497b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 498b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_INDEX: 499b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_FLAGS: 500b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_IP_ADDR: 501b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_PORT: 502b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_LUN: 503b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_NIC_ASSOC: 504b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_TYPE: 505b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 506b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_NAME: 507b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (tgt->tgt_name_len) 508b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 509b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 510b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_NAME: 511b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_CHAP_SECRET: 512b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (tgt->chap_name_len) 513b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 514b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 515b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_REV_CHAP_NAME: 516b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 517b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (tgt->rev_chap_name_len) 518b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 519b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 520b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie default: 521b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 522b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 523b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 524b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return rc; 525b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie} 526b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 527587a1f1659e8b330b8738ef4901832a2b63f0bedAl Virostatic umode_t __init ibft_check_initiator_for(void *data, int type) 528b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie{ 529b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *entry = data; 530b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_initiator *init = entry->initiator; 531587a1f1659e8b330b8738ef4901832a2b63f0bedAl Viro umode_t rc = 0; 532b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 533b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie switch (type) { 534b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_INDEX: 535b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_FLAGS: 536b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 537b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 538b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_ISNS_SERVER: 539b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(init->isns_server, nulls, 540b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(init->isns_server))) 541b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 542b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 543b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_SLP_SERVER: 544b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(init->slp_server, nulls, 545b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(init->slp_server))) 546b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 547b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 548b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_PRI_RADIUS_SERVER: 549b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(init->pri_radius_server, nulls, 550b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(init->pri_radius_server))) 551b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 552b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 553b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_SEC_RADIUS_SERVER: 554b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (memcmp(init->sec_radius_server, nulls, 555b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sizeof(init->sec_radius_server))) 556b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 557b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 558b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie case ISCSI_BOOT_INI_INITIATOR_NAME: 559b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (init->initiator_name_len) 560b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = S_IRUGO; 561b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 562b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie default: 563b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 564b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 565b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 566b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return rc; 567b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie} 568b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 569f457a46f179df41b0f6d80dee33b6e629945f276Mike Christiestatic void ibft_kobj_release(void *data) 570f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie{ 571f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie kfree(data); 572f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie} 573f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie 574b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie/* 575138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Helper function for ibft_register_kobjects. 576138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 5774e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jonesstatic int __init ibft_create_kobject(struct acpi_table_ibft *header, 578b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_hdr *hdr) 579138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 580b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct iscsi_boot_kobj *boot_kobj = NULL; 581138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_kobject *ibft_kobj = NULL; 582138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_nic *nic = (struct ibft_nic *)hdr; 583138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct pci_dev *pci_dev; 584138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek int rc = 0; 585138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 586138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek ibft_kobj = kzalloc(sizeof(*ibft_kobj), GFP_KERNEL); 587138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (!ibft_kobj) 588138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return -ENOMEM; 589138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 590138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek ibft_kobj->header = header; 591138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek ibft_kobj->hdr = hdr; 592138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 593138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek switch (hdr->id) { 594138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_initiator: 595138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_verify_hdr("initiator", hdr, id_initiator, 596138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek sizeof(*ibft_kobj->initiator)); 597b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (rc) 598b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 599b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 600b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie boot_kobj = iscsi_boot_create_initiator(boot_kset, hdr->index, 601b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_kobj, 602b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_attr_show_initiator, 603f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_check_initiator_for, 604f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_kobj_release); 605b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (!boot_kobj) { 606b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = -ENOMEM; 607b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie goto free_ibft_obj; 608b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 609138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 610138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_nic: 611138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_verify_hdr("ethernet", hdr, id_nic, 612138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek sizeof(*ibft_kobj->nic)); 613b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (rc) 614b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 615b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 616b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie boot_kobj = iscsi_boot_create_ethernet(boot_kset, hdr->index, 617b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_kobj, 618b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_attr_show_nic, 619f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_check_nic_for, 620f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_kobj_release); 621b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (!boot_kobj) { 622b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = -ENOMEM; 623b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie goto free_ibft_obj; 624b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 625138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 626138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_target: 627138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_verify_hdr("target", hdr, id_target, 628138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek sizeof(*ibft_kobj->tgt)); 629b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (rc) 630b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie break; 631b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 632b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie boot_kobj = iscsi_boot_create_target(boot_kset, hdr->index, 633b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_kobj, 634b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_attr_show_target, 635f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_check_tgt_for, 636f457a46f179df41b0f6d80dee33b6e629945f276Mike Christie ibft_kobj_release); 637b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (!boot_kobj) { 638b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = -ENOMEM; 639b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie goto free_ibft_obj; 640b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie } 641138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 642138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_reserved: 643138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_control: 644138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek case id_extensions: 645138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* Fields which we don't support. Ignore them */ 646138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = 1; 647138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 648138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek default: 649138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek printk(KERN_ERR "iBFT has unknown structure type (%d). " \ 650138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek "Report this bug to %.6s!\n", hdr->id, 6514e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones header->header.oem_id); 652138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = 1; 653138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 654138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 655138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 656138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (rc) { 657138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* Skip adding this kobject, but exit with non-fatal error. */ 658b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = 0; 659b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie goto free_ibft_obj; 660138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 661138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 662138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (hdr->id == id_nic) { 663138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* 664138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * We don't search for the device in other domains than 665138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * zero. This is because on x86 platforms the BIOS 666138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * executes only devices which are in domain 0. Furthermore, the 667138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * iBFT spec doesn't have a domain id field :-( 668138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 669138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8, 670138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek (nic->pci_bdf & 0xff)); 671138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (pci_dev) { 672b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = sysfs_create_link(&boot_kobj->kobj, 673138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek &pci_dev->dev.kobj, "device"); 674138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek pci_dev_put(pci_dev); 675138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 676138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 677b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return 0; 678138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 679b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiefree_ibft_obj: 680b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie kfree(ibft_kobj); 681138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return rc; 682138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 683138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 684138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 685138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * Scan the IBFT table structure for the NIC and Target fields. When 686138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * found add them on the passed-in list. We do not support the other 687138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * fields at this point, so they are skipped. 688138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 689b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic int __init ibft_register_kobjects(struct acpi_table_ibft *header) 690138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 691138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek struct ibft_control *control = NULL; 692138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek void *ptr, *end; 693138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek int rc = 0; 694138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 offset; 695138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek u16 eot_offset; 696138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 697138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek control = (void *)header + sizeof(*header); 698138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek end = (void *)control + control->hdr.length; 6994e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones eot_offset = (void *)header + header->header.length - (void *)control; 700138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_verify_hdr("control", (struct ibft_hdr *)control, id_control, 701138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek sizeof(*control)); 702138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 703138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek /* iBFT table safety checking */ 704138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc |= ((control->hdr.index) ? -ENODEV : 0); 705138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (rc) { 706138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek printk(KERN_ERR "iBFT error: Control header is invalid!\n"); 707138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return rc; 708138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 709138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek for (ptr = &control->initiator_off; ptr < end; ptr += sizeof(u16)) { 710138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek offset = *(u16 *)ptr; 7114e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones if (offset && offset < header->header.length && 7124e639fdf0d0d745648aa62228ab8a0d9c03a563fPeter Jones offset < eot_offset) { 713138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_create_kobject(header, 714b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie (void *)header + offset); 715138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (rc) 716138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek break; 717138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 718138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } 719138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 720138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return rc; 721138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 722138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 723b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic void ibft_unregister(void) 724138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 725b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct iscsi_boot_kobj *boot_kobj, *tmp_kobj; 726b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie struct ibft_kobject *ibft_kobj; 727b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie 728b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie list_for_each_entry_safe(boot_kobj, tmp_kobj, 729b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie &boot_kset->kobj_list, list) { 730b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_kobj = boot_kobj->data; 731b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (ibft_kobj->hdr->id == id_nic) 732b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie sysfs_remove_link(&boot_kobj->kobj, "device"); 733138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek }; 734138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 735138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 736b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic void ibft_cleanup(void) 737138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 738a12415ff589ac5106e6b489f44c947b565fcb963Konrad Rzeszutek Wilk if (boot_kset) { 739a12415ff589ac5106e6b489f44c947b565fcb963Konrad Rzeszutek Wilk ibft_unregister(); 740a12415ff589ac5106e6b489f44c947b565fcb963Konrad Rzeszutek Wilk iscsi_boot_destroy_kset(boot_kset); 741a12415ff589ac5106e6b489f44c947b565fcb963Konrad Rzeszutek Wilk } 742138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 743138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 744b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christiestatic void __exit ibft_exit(void) 745138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 746b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_cleanup(); 747138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 748138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 749935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu#ifdef CONFIG_ACPI 750935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lustatic const struct { 751935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu char *sign; 752935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu} ibft_signs[] = { 753935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu /* 754935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu * One spec says "IBFT", the other says "iBFT". We have to check 755935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu * for both. 756935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu */ 757935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu { ACPI_SIG_IBFT }, 758935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu { "iBFT" }, 759629c27aa0c930b9c67188cfc625bf6cdd2af6764Vikas Chaudhary { "BIFT" }, /* Broadcom iSCSI Offload */ 760935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu}; 761935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu 762935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lustatic void __init acpi_find_ibft_region(void) 763935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu{ 764935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu int i; 765935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu struct acpi_table_header *table = NULL; 766935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu 767935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu if (acpi_disabled) 768935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu return; 769935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu 770935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) { 771935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu acpi_get_table(ibft_signs[i].sign, 0, &table); 772935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu ibft_addr = (struct acpi_table_ibft *)table; 773935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu } 774935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu} 775935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu#else 776935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lustatic void __init acpi_find_ibft_region(void) 777935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu{ 778935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu} 779935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu#endif 780935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu 781138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek/* 782138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek * ibft_init() - creates sysfs tree entries for the iBFT data. 783138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek */ 784138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekstatic int __init ibft_init(void) 785138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek{ 786138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek int rc = 0; 787138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 788935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu /* 789935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu As on UEFI systems the setup_arch()/find_ibft_region() 790935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu is called before ACPI tables are parsed and it only does 791935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu legacy finding. 792935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu */ 793935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu if (!ibft_addr) 794935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu acpi_find_ibft_region(); 795935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu 796138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (ibft_addr) { 797935a9fee51c945b8942be2d7b4bae069167b4886Yinghai Lu pr_info("iBFT detected.\n"); 798138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 799138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek rc = ibft_check_device(); 800138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (rc) 801b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return rc; 802138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 803b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie boot_kset = iscsi_boot_create_kset("ibft"); 804b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie if (!boot_kset) 805b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie return -ENOMEM; 806138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 807b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie /* Scan the IBFT for data and register the kobjects. */ 808b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie rc = ibft_register_kobjects(ibft_addr); 809138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek if (rc) 810138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek goto out_free; 811138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek } else 812138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek printk(KERN_INFO "No iBFT detected.\n"); 813138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 814138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return 0; 815138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 816138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekout_free: 817b33a84a384776fb2593dac4d77c72050f9e181b0Mike Christie ibft_cleanup(); 818138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek return rc; 819138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek} 820138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutek 821138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekmodule_init(ibft_init); 822138fe4e069798d9aa948a5402ff15e58f483ee4eKonrad Rzeszutekmodule_exit(ibft_exit); 823