git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| b14f8ab2 BH |
1 | /* |
| 2 | * Copyright (C) 2005, 2006 | |
| 3 | * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) | |
| 4 | * Copyright (C) 2005, 2006 | |
| 5 | * International Business Machines | |
| 6 | * Copyright (C) 2008, 2009 | |
| 7 | * Boaz Harrosh <bharrosh@panasas.com> | |
| 8 | * | |
| 9 | * This file is part of exofs. | |
| 10 | * | |
| 11 | * exofs is free software; you can redistribute it and/or modify | |
| 12 | * it under the terms of the GNU General Public License as published by | |
| 13 | * the Free Software Foundation. Since it is based on ext2, and the only | |
| 14 | * valid version of GPL for the Linux kernel is version 2, the only valid | |
| 15 | * version of GPL for exofs is version 2. | |
| 16 | * | |
| 17 | * exofs is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | * GNU General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License | |
| 23 | * along with exofs; if not, write to the Free Software | |
| 24 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 25 | */ | |
| 26 | ||
| 27 | #include <scsi/scsi_device.h> | |
| 28 | #include <scsi/osd_sense.h> | |
| 29 | ||
| 30 | #include "exofs.h" | |
| 31 | ||
| 32 | int exofs_check_ok_resid(struct osd_request *or, u64 *in_resid, u64 *out_resid) | |
| 33 | { | |
| 34 | struct osd_sense_info osi; | |
| 35 | int ret = osd_req_decode_sense(or, &osi); | |
| 36 | ||
| 37 | if (ret) { /* translate to Linux codes */ | |
| 38 | if (osi.additional_code == scsi_invalid_field_in_cdb) { | |
| 39 | if (osi.cdb_field_offset == OSD_CFO_STARTING_BYTE) | |
| 40 | ret = -EFAULT; | |
| 41 | if (osi.cdb_field_offset == OSD_CFO_OBJECT_ID) | |
| 42 | ret = -ENOENT; | |
| 43 | else | |
| 44 | ret = -EINVAL; | |
| 45 | } else if (osi.additional_code == osd_quota_error) | |
| 46 | ret = -ENOSPC; | |
| 47 | else | |
| 48 | ret = -EIO; | |
| 49 | } | |
| 50 | ||
| 51 | /* FIXME: should be include in osd_sense_info */ | |
| 52 | if (in_resid) | |
| 53 | *in_resid = or->in.req ? or->in.req->data_len : 0; | |
| 54 | ||
| 55 | if (out_resid) | |
| 56 | *out_resid = or->out.req ? or->out.req->data_len : 0; | |
| 57 | ||
| 58 | return ret; | |
| 59 | } | |
| 60 | ||
| 61 | void exofs_make_credential(u8 cred_a[OSD_CAP_LEN], const struct osd_obj_id *obj) | |
| 62 | { | |
| 63 | osd_sec_init_nosec_doall_caps(cred_a, obj, false, true); | |
| 64 | } | |
| 65 | ||
| 66 | /* | |
| 67 | * Perform a synchronous OSD operation. | |
| 68 | */ | |
| 69 | int exofs_sync_op(struct osd_request *or, int timeout, uint8_t *credential) | |
| 70 | { | |
| 71 | int ret; | |
| 72 | ||
| 73 | or->timeout = timeout; | |
| 74 | ret = osd_finalize_request(or, 0, credential, NULL); | |
| 75 | if (ret) { | |
| 76 | EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret); | |
| 77 | return ret; | |
| 78 | } | |
| 79 | ||
| 80 | ret = osd_execute_request(or); | |
| 81 | ||
| 82 | if (ret) | |
| 83 | EXOFS_DBGMSG("osd_execute_request() => %d\n", ret); | |
| 84 | /* osd_req_decode_sense(or, ret); */ | |
| 85 | return ret; | |
| 86 | } | |
| 87 | ||
| 88 | /* | |
| 89 | * Perform an asynchronous OSD operation. | |
| 90 | */ | |
| 91 | int exofs_async_op(struct osd_request *or, osd_req_done_fn *async_done, | |
| 92 | void *caller_context, u8 *cred) | |
| 93 | { | |
| 94 | int ret; | |
| 95 | ||
| 96 | ret = osd_finalize_request(or, 0, cred, NULL); | |
| 97 | if (ret) { | |
| 98 | EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret); | |
| 99 | return ret; | |
| 100 | } | |
| 101 | ||
| 102 | ret = osd_execute_request_async(or, async_done, caller_context); | |
| 103 | ||
| 104 | if (ret) | |
| 105 | EXOFS_DBGMSG("osd_execute_request_async() => %d\n", ret); | |
| 106 | return ret; | |
| 107 | } | |
| 108 | ||
| 109 | int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr) | |
| 110 | { | |
| 111 | struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */ | |
| 112 | void *iter = NULL; | |
| 113 | int nelem; | |
| 114 | ||
| 115 | do { | |
| 116 | nelem = 1; | |
| 117 | osd_req_decode_get_attr_list(or, &cur_attr, &nelem, &iter); | |
| 118 | if ((cur_attr.attr_page == attr->attr_page) && | |
| 119 | (cur_attr.attr_id == attr->attr_id)) { | |
| 120 | attr->len = cur_attr.len; | |
| 121 | attr->val_ptr = cur_attr.val_ptr; | |
| 122 | return 0; | |
| 123 | } | |
| 124 | } while (iter); | |
| 125 | ||
| 126 | return -EIO; | |
| 127 | } |