8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * CDDL HEADER START
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * The contents of this file are subject to the terms of the
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Common Development and Distribution License (the "License").
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * You may not use this file except in compliance with the License.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * See the License for the specific language governing permissions
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * and limitations under the License.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * When distributing Covered Code, include this CDDL HEADER in each
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * If applicable, add the following below this CDDL HEADER, with the
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * fields enclosed by brackets "[]" replaced with your own identifying
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * information: Portions Copyright [yyyy] [name of copyright owner]
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * CDDL HEADER END
f4e76ddf09a338dc23da0904866290ac36274a5bNattuvetty Bhavyan * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
f4e76ddf09a338dc23da0904866290ac36274a5bNattuvetty Bhavyanvoid sbd_pgr_initialize_it(scsi_task_t *, sbd_it_data_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetovoid sbd_handle_pgr_in_cmd(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetovoid sbd_handle_pgr_out_cmd(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetovoid sbd_handle_pgr_out_data(scsi_task_t *, stmf_data_buf_t *);
7145ae3ec9b6b40ec13b508a7bb1718ce67f4588Nattuvetty Bhavyansbd_status_t sbd_pgr_meta_init(sbd_lu_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_swap_pgrkey_info(sbd_pgr_key_info_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_remove_key(sbd_lu_t *, sbd_pgr_key_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic uint32_t sbd_pgr_remove_keys(sbd_lu_t *, sbd_it_data_t *,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic boolean_t sbd_pgr_key_compare(sbd_pgr_key_t *, scsi_devid_desc_t *,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic sbd_pgr_key_t *sbd_pgr_key_alloc(scsi_devid_desc_t *,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan scsi_transport_id_t *, int16_t, int16_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_set_pgr_check_flag(sbd_lu_t *, boolean_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_set_ua_conditions(sbd_lu_t *, sbd_it_data_t *, uint8_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_in_read_keys(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_in_report_capabilities(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_in_read_reservation(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_in_read_full_status(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_out_register(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_out_preempt(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_out_register_and_move(scsi_task_t *, stmf_data_buf_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic sbd_pgr_key_t *sbd_pgr_do_register(sbd_lu_t *, sbd_it_data_t *,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan scsi_devid_desc_t *, stmf_remote_port_t *, uint8_t, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_do_unregister(sbd_lu_t *, sbd_it_data_t *, sbd_pgr_key_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_do_release(sbd_lu_t *, sbd_it_data_t *, uint8_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetostatic void sbd_pgr_do_reserve(sbd_pgr_t *, sbd_pgr_key_t *, sbd_it_data_t *it,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern sbd_status_t sbd_write_meta_section(sbd_lu_t *, sm_section_hdr_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern sbd_status_t sbd_read_meta_section(sbd_lu_t *, sm_section_hdr_t **,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern void sbd_swap_section_hdr(sm_section_hdr_t *);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern void sbd_handle_short_write_transfers(scsi_task_t *task,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern void sbd_handle_short_read_transfers(scsi_task_t *task,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto stmf_data_buf_t *dbuf, uint8_t *p, uint32_t cdb_xfer_size,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern uint16_t stmf_scsilib_get_lport_rtid(scsi_devid_desc_t *devid);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetoextern scsi_devid_desc_t *stmf_scsilib_get_devid_desc(uint16_t rtpid);
70c284ca5360ed73476d9e94223d4905dd80b1adPeter Cudhea - Sun Microsystems - Burlington, MA United Statesextern char sbd_ctoi(char c);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-----------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |sl_it_list
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |---------------------------------------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | sbd_lu_t | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-----+-----+ V
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-----------+ pgr_key_list +------>| |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |------------+ +-->(NULL) | +- ---|sbd_it |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | | | | | _data |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | sbd_pgr_t | V | | | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | +-------+ | | +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |---+ | | | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | |sbd_pgr|---------+ | v
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-----------+ | | _key_t|<----------+ +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+ +--------| |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |^ | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | || | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | v| | +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+ | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |ALL_TG_|<-------+ +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |PT = 1 |<---------+ | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | |---+ | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | | +------| |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * (pgr_rsvholder +-------+ V | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * pgr_flags& |^ (NUll) | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * RSVD_ONE) || +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+ v
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | not | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |claimed|---+ | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | | +----| unreg |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | | V | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+ (NUll) V | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |^ (NUll) +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | +-------+ +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | |reserv-|<----------------| |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +----->| ation|---------------->| |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * |holder | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * |key | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-------+ +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * v| +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-------+ | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | not |---+ +----| unreg |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * |claimed| | | | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | V V | |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * | | (NUll) (NUll) +-------+
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * +-------+ |
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* ----------------------- */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* SPC-3 (rev 23) Table 31 */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* ----------------------- */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* PREVENT ALLOW MEDIUM REMOVAL with prevent == 0 */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((((cdb[0]) == SCMD_DOORLOCK) && (((cdb[4]) & 0x3) == 0))) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* SERVICE ACTION IN with READ MEDIA SERIAL NUMBER (0x01) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* MAINTENANCE IN with service actions REPORT ALIASES (0x0Bh) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* REPORT DEVICE IDENTIFIER (0x05) REPORT PRIORITY (0x0Eh) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* REPORT TARGET PORT GROUPS (0x0A) REPORT TIMESTAMP (0x0F) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* REGISTER and REGISTER_AND_IGNORE_EXISTING_KEY */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* actions for PERSISTENT RESERVE OUT command */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (((cdb[1]) & 0x1F) == PR_OUT_REGISTER_AND_IGNORE_EXISTING_KEY) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* ----------------------- */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* SBC-3 (rev 17) Table 3 */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* ----------------------- */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* READ CAPACITY(10) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* READ CAPACITY(16) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* START STOP UNIT with START bit 0 and POWER CONDITION 0 */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (((cdb[4]) & 0xF0) == 0) && (((cdb[4]) & 0x01) == 0))))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto/* End of PGR_CONFLICT_FREE_CMDS */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto/* Commands allowed for registered IT nexues but not reservation holder */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto/* List of commands allowed when WR_EX type reservation held */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((c) == SCMD_READ) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* READ FETCH (10) (16) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((c) == 0x90) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* READ DEFECT DATA */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((c) == 0xB7) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* VERIFY (10) (16) (12) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((c) == SCMD_VERIFY) || \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* XDREAD (10) */ \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((c) == 0x52))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((pgr)->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS) || ( \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((pgr)->pgr_rsvholder) && ((pgr)->pgr_rsvholder == (key)) && \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ((key)->pgr_key_it) && ((key)->pgr_key_it == (it))))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto#define PGR_SET_FLAG(flg, val) (atomic_or_8(&(flg), (val)))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto#define PGR_CLEAR_FLAG(flg, val) (atomic_and_8(&(flg), ~(val)))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto#define PGR_CLEAR_RSV_FLAG(flg) (atomic_and_8(&(flg), \
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (~(SBD_PGR_RSVD_ALL_REGISTRANTS | SBD_PGR_RSVD_ONE))))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto#define PGR_VALID_SCOPE(scope) ((scope) == PR_LU_SCOPE)
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan#define ALIGNED_TO_8BYTE_BOUNDARY(i) (((i) + 7) & ~7)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi->pgr_sms_header.sms_chksum += SMS_DATA_ORDER - spi->pgr_data_order;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi->pgr_rsvholder_indx = BSWAP_32(spi->pgr_rsvholder_indx);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key->pgr_key_lpt_len = BSWAP_16(key->pgr_key_lpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key->pgr_key_rpt_len = BSWAP_16(key->pgr_key_rpt_len);
7145ae3ec9b6b40ec13b508a7bb1718ce67f4588Nattuvetty Bhavyan spi = (sbd_pgr_info_t *)kmem_zalloc(sz, KM_SLEEP);
7145ae3ec9b6b40ec13b508a7bb1718ce67f4588Nattuvetty Bhavyan spi->pgr_sms_header.sms_id = SMS_ID_PGR_INFO;
7145ae3ec9b6b40ec13b508a7bb1718ce67f4588Nattuvetty Bhavyan spi->pgr_sms_header.sms_data_order = SMS_DATA_ORDER;
7145ae3ec9b6b40ec13b508a7bb1718ce67f4588Nattuvetty Bhavyan ret = sbd_write_meta_section(slu, (sm_section_hdr_t *)spi);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ret = sbd_read_meta_section(slu, (sm_section_hdr_t **)&spi,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* No PGR section found, means volume made before PGR support */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* So just create a default PGR section */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto PGR_CLEAR_FLAG(slu->sl_pgr->pgr_flags, SBD_PGR_ALL_KEYS_HAS_IT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Calculate the size and next offset */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan sz = ALIGNED_TO_8BYTE_BOUNDARY(sizeof (sbd_pgr_key_info_t) - 1 +
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi_key->pgr_key_lpt_len + spi_key->pgr_key_rpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Validate the key fields */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (spi_key->pgr_key_rpt_len == 0 || endoffset < keyoffset ||
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto !(spi_key->pgr_key_flags & SBD_PGR_KEY_ALL_TG_PT))) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ptr = (uint8_t *)spi_key->pgr_key_it + spi_key->pgr_key_lpt_len;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (spi_key->pgr_key_flags & SBD_PGR_KEY_TPT_ID_FLAG) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (tpd_len != spi_key->pgr_key_rpt_len) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan key = sbd_pgr_key_alloc(lpt, (scsi_transport_id_t *)ptr,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan spi_key->pgr_key_lpt_len, spi_key->pgr_key_rpt_len);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan * This block is executed only if the metadata was
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan * stored before the implementation of Transport ID
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan key = sbd_pgr_key_alloc(lpt, rpt->rport_tptid,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan spi_key->pgr_key_lpt_len, rpt->rport_tptid_sz);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan char *lun_name = sbd_get_devid_string(slu);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(spi, spi->pgr_sms_header.sms_size);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan cmn_err(CE_WARN, "sbd_pgr_meta_load: Failed to load PGR meta data "
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(lun_name, strlen(lun_name) + 1);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Calculate total pgr meta section size needed */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi = (sbd_pgr_info_t *)kmem_zalloc(totalsz, KM_SLEEP);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi->pgr_sms_header.sms_data_order = SMS_DATA_ORDER;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto spi_key = (sbd_pgr_key_info_t *)((uint8_t *)spi + sz);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan spi_key->pgr_key_flags = key->pgr_key_flags;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto bcopy(key->pgr_key_lpt_id, ptr, key->pgr_key_lpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto bcopy(key->pgr_key_rpt_id, ptr, key->pgr_key_rpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ret = sbd_write_meta_section(slu, (sm_section_hdr_t *)spi);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto cmn_err(CE_WARN, "sbd_pgr_meta_write: Failed to revert "
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto "back to existing PGR state after meta write "
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto "failure, may cause PGR inconsistancy for lun %s.",
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyansbd_pgr_key_alloc(scsi_devid_desc_t *lptid, scsi_transport_id_t *rptid,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key = (sbd_pgr_key_t *)kmem_zalloc(sizeof (sbd_pgr_key_t), KM_SLEEP);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (lptid && lpt_len >= sizeof (scsi_devid_desc_t)) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key->pgr_key_lpt_id = (scsi_devid_desc_t *)kmem_zalloc(
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (rptid && rpt_len >= sizeof (scsi_transport_id_t)) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan key->pgr_key_flags |= SBD_PGR_KEY_TPT_ID_FLAG;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan key->pgr_key_rpt_id = (scsi_transport_id_t *)kmem_zalloc(
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto kmem_free(key->pgr_key_lpt_id, key->pgr_key_lpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto kmem_free(key->pgr_key_rpt_id, key->pgr_key_rpt_len);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = slu->sl_it_list; it != NULL; it = it->sbd_it_next) {
450396635f70344c58b6b1e4db38cf17ff34445cJohn Forte * Reset and clear the keys, Can be used in the case of Lun Reset
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_remove_key(sbd_lu_t *slu, sbd_pgr_key_t *key)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = slu->sl_it_list; it != NULL; it = it->sbd_it_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key->pgr_key_next->pgr_key_prev = key->pgr_key_prev;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key->pgr_key_prev->pgr_key_next = key->pgr_key_next;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Remove keys depends on boolean variable "match"
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * match = B_TRUE ==> Remove all keys which matches the given svc_key,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * except for IT equal to given "my_it".
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * match = B_FALSE ==> Remove all keys which does not matches the svc_key,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * except for IT equal to given "my_it"
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_remove_keys(sbd_lu_t *slu, sbd_it_data_t *my_it, sbd_pgr_key_t *my_key,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * If the key is registered by current IT keep it,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * but just remove pgr pointers from other ITs
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_set_ua_conditions(sbd_lu_t *slu, sbd_it_data_t *my_it, uint8_t ua)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = slu->sl_it_list; it != NULL; it = it->sbd_it_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Set the SBD_IT_PGR_CHECK_FLAG depends on variable "registered". See Below.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * registered is B_TRUE => Set PGR_CHECK_FLAG on all registered IT nexus
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * registered is B_FALSE => Set PGR_CHECK_FLAG on all unregistered IT nexus
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_set_pgr_check_flag(sbd_lu_t *slu, boolean_t registered)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto PGR_CLEAR_FLAG(slu->sl_pgr->pgr_flags, SBD_PGR_ALL_KEYS_HAS_IT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = slu->sl_it_list; it != NULL; it = it->sbd_it_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_key_compare(sbd_pgr_key_t *key, scsi_devid_desc_t *lpt,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (!stmf_scsilib_tptid_compare(rpt->rport_tptid, key->pgr_key_rpt_id))
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * You can skip target port name comparison if ALL_TG_PT flag
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * is set for this key;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (!(key->pgr_key_flags & SBD_PGR_KEY_ALL_TG_PT) && lpt) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (memcmp(id->ident, lpt->ident, id->ident_length) != 0)) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_key_registered(sbd_pgr_t *pgr, scsi_devid_desc_t *lpt,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (key = pgr->pgr_keylist; key != NULL; key = key->pgr_key_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (sbd_pgr_key_compare(key, lpt, rpt) == B_TRUE) {
f4e76ddf09a338dc23da0904866290ac36274a5bNattuvetty Bhavyansbd_pgr_initialize_it(scsi_task_t *task, sbd_it_data_t *it)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
f4e76ddf09a338dc23da0904866290ac36274a5bNattuvetty Bhavyan stmf_scsi_session_t *ses = task->task_session;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto PGR_SET_FLAG(pgr->pgr_flags, SBD_PGR_ALL_KEYS_HAS_IT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (key = pgr->pgr_keylist; key != NULL; key = key->pgr_key_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if ((!(key->pgr_key_flags & SBD_PGR_KEY_ALL_TG_PT)) &&
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * SBD_PGR_ALL_KEYS_HAS_IT is set only if no single key
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * in the list has SBD_PGR_KEY_ALL_TG_PT flag set and
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * pgr_key_it all keys points to some IT
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto PGR_CLEAR_FLAG(pgr->pgr_flags, SBD_PGR_ALL_KEYS_HAS_IT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Check if key matches with given lpt rpt combination */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (sbd_pgr_key_compare(key, lpt, rpt) == B_FALSE)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* IT nexus devid information matches with this key */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * If ALL_TG_PT is set, pgr_key_it will point to NULL,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * unless pgr->pgr_rsvholder pointing to this key.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * In that case, pgr_key_it should point to the IT
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * which initiated that reservation.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Check for any PGR Reservation conflict. return 0 if access allowed
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_it_data_t *it = (sbd_it_data_t *)task->task_lu_itl_handle;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If Registered */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pgr->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS && it->pgr_key_ptr)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If you are registered */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Note: it->pgr_key_ptr is protected by sl_lock. Also,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * it is expected to change its value only with pgr_lock
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * held. Hence we are safe to read its value without
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * grabbing sl_lock. But make sure that the value used is
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * not from registers by using "volatile" keyword.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Since this funtion is in performance path, we may want
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * to avoid grabbing sl_lock.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If you are the reservation holder */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If reserve type is not EX_AC */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If reserve type is WR_EX allow read */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* For all other reserve types allow access */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If registered, allow these commands */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (PGR_REGISTERED_POSSIBLE_CMDS(task->task_cdb)) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* For any case, allow these commands */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Give read access if reservation type WR_EX for registrants */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* If you reached here, No access for you */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_handle_pgr_in_cmd(scsi_task_t *task, stmf_data_buf_t *initial_dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_IN);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_pgr_in_report_capabilities(task, initial_dbuf);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_handle_pgr_out_cmd(scsi_task_t *task, stmf_data_buf_t *initial_dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_OUT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto param_len = READ_SCSI32(pr_out->param_len, uint32_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_handle_pgr_out_data(scsi_task_t *task, stmf_data_buf_t *dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_OUT);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* SPC3 - 6.12.1 */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pr_out->action != PR_OUT_REGISTER_MOVE && buflen != 24) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Common Reservation Conflict Checks
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * It is okey to handle REGISTER_MOVE with same plist here,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * because we are only accessing reservation key feild.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Currently it is not mandatory to have volatile keyword here,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * because, it->pgr_key_ptr is not accessed yet. But still
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * keeping it to safe gaurd against any possible future changes.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto key = (sbd_pgr_key_t *)((volatile sbd_pgr_key_t *)it->pgr_key_ptr);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto pr_out->action != PR_OUT_REGISTER_AND_IGNORE_EXISTING_KEY) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* if IT is not yet registered send conflict status */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Given reservation key should matches with registered key */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto rsv_key = READ_SCSI64(plist->reservation_key, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_in_read_keys(scsi_task_t *task, stmf_data_buf_t *initial_dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_IN);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto cdb_len = READ_SCSI16(&task->task_cdb[7], uint16_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (key = pgr->pgr_keylist; key != NULL; key = key->pgr_key_next)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto SCSI_WRITE32(buf->PRgeneration, pgr->pgr_PRgeneration);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (key = pgr->pgr_keylist; key != NULL; key = key->pgr_key_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_handle_short_read_transfers(task, initial_dbuf, (uint8_t *)buf,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_in_read_reservation(scsi_task_t *task, stmf_data_buf_t *initial_dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_IN);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto cdb_len = READ_SCSI16(&task->task_cdb[7], uint16_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf = kmem_zalloc(buf_size, KM_SLEEP); /* fixed size cdb, 24 bytes */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto SCSI_WRITE32(buf->PRgeneration, pgr->pgr_PRgeneration);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pgr->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf->key_list.res_key_list[0].reservation_key, 0);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf->key_list.res_key_list[0].type = pgr->pgr_rsv_type;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf->key_list.res_key_list[0].scope = pgr->pgr_rsv_scope;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_handle_short_read_transfers(task, initial_dbuf, (uint8_t *)buf,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_IN);
70c284ca5360ed73476d9e94223d4905dd80b1adPeter Cudhea - Sun Microsystems - Burlington, MA United States bzero(&buf, sizeof (buf));
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.ptpl_c = 1; /* Persist Through Power Loss C */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.sip_c = 1; /* Specify Initiator Ports Capable */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.crh = 0; /* Supports Reserve/Release exception */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.pr_type.wr_ex_ro = 1; /* Write Exclusive Registrants Only */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.pr_type.ex_ac_ro = 1; /* Exclusive Access Registrants Only */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.pr_type.wr_ex_ar = 1; /* Write Exclusive All Registrants */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto buf.pr_type.ex_ac_ar = 1; /* Exclusive Access All Registrants */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Persist Though Power Loss Active */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto cdb_len = READ_SCSI16(&task->task_cdb[7], uint16_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_handle_short_read_transfers(task, initial_dbuf, (uint8_t *)&buf,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan/* Minimum required size, SPC3 rev23 Table 110 */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan#define PGR_IN_READ_FULL_STATUS_MINBUFSZ 8
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan/* Full Satus Descriptor Fromat size, SPC3 rev23 Table 111 */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan#define PGR_IN_READ_FULL_STATUS_DESCFMTSZ 24
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto ASSERT(task->task_cdb[0] == SCMD_PERSISTENT_RESERVE_IN);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* 4 byte allocation length for CDB, SPC3 rev23, Table 101 */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto cdb_len = READ_SCSI16(&task->task_cdb[7], uint16_t);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* PRgeneration and additional length fields */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan buf_size = PGR_IN_READ_FULL_STATUS_MINBUFSZ;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (key = pgr->pgr_keylist; key != NULL; key = key->pgr_key_next) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan buf_size = buf_size + PGR_IN_READ_FULL_STATUS_DESCFMTSZ +
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto SCSI_WRITE32(buf->PRgeneration, pgr->pgr_PRgeneration);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan SCSI_WRITE32(buf->add_len, buf_size - PGR_IN_READ_FULL_STATUS_MINBUFSZ);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if ((pgr->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS) ||
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (pgr->pgr_rsvholder && pgr->pgr_rsvholder == key)) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto stmf_scsilib_get_lport_rtid(key->pgr_key_lpt_id));
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan SCSI_WRITE32(sts->add_len, key->pgr_key_rpt_len);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan offset += PGR_IN_READ_FULL_STATUS_DESCFMTSZ;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan (void) memcpy(offset, key->pgr_key_rpt_id,
70c284ca5360ed73476d9e94223d4905dd80b1adPeter Cudhea - Sun Microsystems - Burlington, MA United States ASSERT(offset <= (uint8_t *)buf + buf_size);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_handle_short_read_transfers(task, initial_dbuf, (uint8_t *)buf,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_out_register(scsi_task_t *task, stmf_data_buf_t *dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan scsi_devid_desc_t *lpt = ses->ss_lport->lport_id;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto rsv_key = READ_SCSI64(plist->reservation_key, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto svc_key = READ_SCSI64(plist->service_key, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Handling already registered IT session */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Handling unregistered IT session */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pr_out->action == PR_OUT_REGISTER && rsv_key != 0) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto stmf_scsilib_send_status(task, STATUS_RESERVATION_CONFLICT, 0);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Do we need to consider aptpl here? I don't think so */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan uint32_t max_tpdnum, tpdnum, i, adn_len = 0;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pr_out->action == PR_OUT_REGISTER_AND_IGNORE_EXISTING_KEY) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* Length validation SPC3 rev23 Section 6.12.3 and Table 115 */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (buflen >= sizeof (scsi_prout_plist_t) - 1 +
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan adn_len = READ_SCSI32(plist->apd, uint32_t);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* SPC3 rev23, adn_len should be multiple of 4 */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan buflen < sizeof (scsi_prout_plist_t) - 1 + adn_len) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan adn_dat = plist->apd + sizeof (uint32_t);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan max_tpdnum = adn_len / sizeof (scsi_transport_id_t);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan rpt_ary = (stmf_remote_port_t *)kmem_zalloc(
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan sizeof (stmf_remote_port_t) * max_tpdnum, KM_SLEEP);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Check the validity of given TransportIDs */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan (scsi_transport_id_t *)adn_dat, adn_len, &tpd_sz))
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* SPC3 rev23, tpd_sz should be multiple of 4 */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* make sure that there is no duplicates */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (i = 0; i < tpdnum; i++) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Check if the given IT nexus is already registered */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (sbd_pgr_key_registered(pgr, lpt, &rpt_ary[tpdnum]))
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan sizeof (stmf_remote_port_t) * max_tpdnum);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan for (i = 0; i < tpdnum; i++) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan (void) sbd_pgr_do_register(slu, NULL, lpt, &rpt_ary[i],
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(rpt_ary, sizeof (stmf_remote_port_t) * max_tpdnum);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan rport.rport_tptid = ses->ss_rport->rport_tptid;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan rport.rport_tptid_sz = ses->ss_rport->rport_tptid_sz;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan (void) sbd_pgr_do_register(slu, it, lpt, &rport, keyflag, svc_key);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pgr->pgr_flags & SBD_PGR_APTPL || plist->aptpl) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_do_register(sbd_lu_t *slu, sbd_it_data_t *it, scsi_devid_desc_t *lpt,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan stmf_remote_port_t *rpt, uint8_t keyflag, uint64_t svc_key)
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan lpt_len = sizeof (scsi_devid_desc_t) + lpt->ident_length;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan key = sbd_pgr_key_alloc(lpt, rpt->rport_tptid,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (key->pgr_key_flags & SBD_PGR_KEY_ALL_TG_PT) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* set PGR_CHECK flag for all unregistered IT nexus */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan sbd_pgr_set_pgr_check_flag(slu, B_FALSE);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_do_unregister(sbd_lu_t *slu, sbd_it_data_t *it, sbd_pgr_key_t *key)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_pgr_do_release(slu, it, SBD_UA_RESERVATIONS_RELEASED);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (!(PGR_VALID_SCOPE(pr_out->scope) && PGR_VALID_TYPE(pr_out->type))) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* In case there is no reservation exist */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_do_reserve(sbd_pgr_t *pgr, sbd_pgr_key_t *key, sbd_it_data_t *it,
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto stmf_scsi_session_t *ses, scsi_cdb_prout_t *pr_out)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto PGR_SET_FLAG(pgr->pgr_flags, SBD_PGR_RSVD_ALL_REGISTRANTS);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pgr->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS ||
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_do_release(sbd_lu_t *slu, sbd_it_data_t *it, uint8_t ua_condition)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Reset pgr_flags */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* set unit attention condition if necessary */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Remove all pointers from IT to pgr keys */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = slu->sl_it_list; it != NULL; it = it->sbd_it_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_pgr_set_ua_conditions(slu, it, SBD_UA_RESERVATIONS_PREEMPTED);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_out_preempt(scsi_task_t *task, stmf_data_buf_t *dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto scsi_cdb_prout_t *pr_out = (scsi_cdb_prout_t *)task->task_cdb;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto svc_key = READ_SCSI64(plist->service_key, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_pgr_remove_keys(slu, it, key, svc_key, B_TRUE) == 0) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Validity check of scope and type */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Remove matched keys in all cases, except when the
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * current IT nexus holds the reservation and the given
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * svc_key matches with registered key.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Note that, if the reservation is held by another
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * IT nexus, and svc_key matches registered key for
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * that IT nexus, sbd_pgr_remove_key() is not expected
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * return 0. Hence, returning check condition after
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * releasing the reservation does not arise.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (sbd_pgr_remove_keys(slu, it, key, svc_key, B_TRUE)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto } else if (pgr->pgr_flags & SBD_PGR_RSVD_ALL_REGISTRANTS) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto (void) sbd_pgr_remove_keys(slu, it, key, 0, B_FALSE);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (sbd_pgr_remove_keys(slu, it, key, svc_key, B_TRUE)
44b678cf2da3f50fd1480d10c64ed703851e44efNattuvetty Bhavyan stmf_abort(STMF_QUEUE_ABORT_LU, task, STMF_ABORTED,
44b678cf2da3f50fd1480d10c64ed703851e44efNattuvetty Bhavyan stmf_scsilib_send_status(task, STATUS_GOOD, 0);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_out_register_and_move(scsi_task_t *task, stmf_data_buf_t *dbuf)
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sbd_lu_t *slu = (sbd_lu_t *)task->task_lu->lu_provider_private;
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * Check whether the key holds the reservation or current reservation
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto * is of type all registrants.
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto stmf_scsilib_send_status(task, STATUS_RESERVATION_CONFLICT, 0);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto svc_key = READ_SCSI64(plist->service_key, uint64_t);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto lpt = stmf_scsilib_get_devid_desc(READ_SCSI16(plist->rel_tgt_port_id,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan adn_len = READ_SCSI32(plist->tptid_len, uint32_t);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan (scsi_transport_id_t *)plist->tptid, adn_len, &tpd_len)) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(lpt, sizeof (scsi_devid_desc_t) + lpt->ident_length);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan rport.rport_tptid = (scsi_transport_id_t *)plist->tptid;
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan if (sbd_pgr_key_compare(key, lpt, &rport)) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(lpt, sizeof (scsi_devid_desc_t) + lpt->ident_length);
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan newkey = sbd_pgr_key_registered(pgr, lpt, &rport);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Set the pgr_key, irrespective of what it currently holds */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* all_tg_pt is set for found key, copy lpt info to the key */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (newkey->pgr_key_flags & SBD_PGR_KEY_ALL_TG_PT) {
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan /* No IT nexus information, hence set PGR_CHEK flag */
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan newkey = sbd_pgr_do_register(slu, NULL, lpt, &rport,
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan kmem_free(lpt, sizeof (scsi_devid_desc_t) + lpt->ident_length);
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Now reserve the key corresponding to the specified IT nexus */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto /* Write to disk if currenty aptpl is set or given task is setting it */
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto if (pgr->pgr_flags & SBD_PGR_APTPL || plist->aptpl) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szetosbd_pgr_remove_it_handle(sbd_lu_t *sl, sbd_it_data_t *my_it) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto for (it = sl->sl_it_list; it != NULL; it = it->sbd_it_next) {
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sl->sl_device_id[4], sl->sl_device_id[5], sl->sl_device_id[6],
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sl->sl_device_id[7], sl->sl_device_id[8], sl->sl_device_id[9],
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sl->sl_device_id[10], sl->sl_device_id[11], sl->sl_device_id[12],
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sl->sl_device_id[13], sl->sl_device_id[14], sl->sl_device_id[15],
8fe960854f0d52e2e8a80ba68e8621a5ac6a866dtim szeto sl->sl_device_id[16], sl->sl_device_id[17], sl->sl_device_id[18],