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Diffstat (limited to 'src/spdk/lib/scsi/port.c')
| -rw-r--r-- | src/spdk/lib/scsi/port.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/spdk/lib/scsi/port.c b/src/spdk/lib/scsi/port.c new file mode 100644 index 000000000..09311bac2 --- /dev/null +++ b/src/spdk/lib/scsi/port.c @@ -0,0 +1,134 @@ +/*- + * BSD LICENSE + * + * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "scsi_internal.h" + +#include "spdk/endian.h" + +struct spdk_scsi_port * +spdk_scsi_port_create(uint64_t id, uint16_t index, const char *name) +{ + struct spdk_scsi_port *port; + + port = calloc(1, sizeof(struct spdk_scsi_port)); + + if (!port) { + return NULL; + } + + if (scsi_port_construct(port, id, index, name) != 0) { + spdk_scsi_port_free(&port); + return NULL; + } + + return port; +} + +void +spdk_scsi_port_free(struct spdk_scsi_port **pport) +{ + struct spdk_scsi_port *port; + + if (!pport) { + return; + } + + port = *pport; + *pport = NULL; + free(port); +} + +int +scsi_port_construct(struct spdk_scsi_port *port, uint64_t id, uint16_t index, + const char *name) +{ + if (strlen(name) >= sizeof(port->name)) { + SPDK_ERRLOG("port name too long\n"); + return -1; + } + + port->is_used = 1; + port->id = id; + port->index = index; + snprintf(port->name, sizeof(port->name), "%s", name); + return 0; +} + +void +scsi_port_destruct(struct spdk_scsi_port *port) +{ + memset(port, 0, sizeof(struct spdk_scsi_port)); +} + +const char * +spdk_scsi_port_get_name(const struct spdk_scsi_port *port) +{ + return port->name; +} + +/* + * spc3r23 7.5.4.6 iSCSI initiator port TransportID, + * using code format 0x01. + */ +void +spdk_scsi_port_set_iscsi_transport_id(struct spdk_scsi_port *port, char *iscsi_name, + uint64_t isid) +{ + struct spdk_scsi_iscsi_transport_id *data; + uint32_t len; + char *name; + + memset(port->transport_id, 0, sizeof(port->transport_id)); + port->transport_id_len = 0; + + data = (struct spdk_scsi_iscsi_transport_id *)port->transport_id; + + data->protocol_id = (uint8_t)SPDK_SPC_PROTOCOL_IDENTIFIER_ISCSI; + data->format = 0x1; + + name = data->name; + len = snprintf(name, SPDK_SCSI_MAX_TRANSPORT_ID_LENGTH - sizeof(*data), + "%s,i,0x%12.12" PRIx64, iscsi_name, isid); + do { + name[len++] = '\0'; + } while (len & 3); + + if (len < 20) { + SPDK_ERRLOG("The length of Transport ID should >= 20 bytes\n"); + return; + } + + to_be16(&data->additional_len, len); + port->transport_id_len = len + sizeof(*data); +} |