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ocs_femul.c
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/*
* BSD LICENSE
*
* Copyright (c) 2011-2018 Broadcom. All Rights Reserved.
* The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
*
* 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.
*/
/**
* @file
* Fabric Emulation
*
*/
#include "ocs.h"
#include "ocs_femul.h"
#include "ocs_fabric.h"
#include "ocs_els.h"
#include "ocs_scsi_fc.h"
#include "ocs_device.h"
#if defined(ENABLE_FABRIC_EMULATION)
/* Name Services Database API */
struct ocs_ns_record_s {
uint32_t active:1,
scr_requested:1;
uint32_t port_id;
uint32_t fc4_types;
uint8_t fc4_features;
uint8_t type_code;
uint64_t node_name;
uint64_t port_name;
char *sym_node_name;
uint32_t sym_node_name_len;
uint32_t class_of_srvc;
ocs_node_t *node;
};
void *__ocs_sport_femul_fabric_idle(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg);
void *__ocs_node_femul_fabric_idle(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *arg);
static int32_t ocs_femul_process_rft_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_da_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gnn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gfpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gff_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gid_ft(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_gid_pt(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_ga_nxt(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rff_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rnn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rcs_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rsnn_nn(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rspn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rhba(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_femul_process_rpa(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len);
static int32_t ocs_ns_event_add(ocs_ns_t *ns, uint32_t port_id);
static void ocs_ns_event_clear(ocs_ns_t *ns);
static void ocs_ns_rscn_timeout(void *arg);
#define OCS_FEMUL_PORTID_BASE 0x20100
#define OCS_FEMUL_NUM_PORTID 256
struct ocs_ns_s {
ocs_domain_t *domain;
uint32_t ns_record_count;
ocs_ns_record_t *ns_records;
ocs_lock_t ns_event_lock;
uint32_t *ns_event_list;
uint32_t ns_event_list_len;
uint32_t ns_event_list_count;
ocs_timer_t rscn_timer;
};
/**
* @brief Allocate a port ID from the port_id pool
*
* A port ID is allocated from the domain's port_id pool
*
* @param domain Pointer to the domain object
*
* @return returns positive port ID value, or negative value for an error
*/
int32_t
ocs_femul_portid_alloc(ocs_domain_t *domain)
{
if (domain->portid_pool == NULL) {
return -1;
}
return ocs_bitmap_find(domain->portid_pool, OCS_FEMUL_NUM_PORTID) + OCS_FEMUL_PORTID_BASE;
}
/**
* @brief Free a port ID
*
* Free the previously allocated port ID
*
* @param domain Pointer to domain object
* @param portid Port ID to free
*
* @return none
*/
void
ocs_femul_portid_free(ocs_domain_t *domain, int32_t portid)
{
int32_t bitnum = portid - OCS_FEMUL_PORTID_BASE;
ocs_assert((bitnum >= 0) && (bitnum < OCS_FEMUL_NUM_PORTID));
if (domain->portid_pool != NULL) {
ocs_bitmap_clear(domain->portid_pool, portid - OCS_FEMUL_PORTID_BASE);
}
}
/**
* @brief Initialize Fabric Emulation subsystem
*
* The Fabric Emulation subsystem is initialized, which includes allocating of the
* port ID pool, as well as instantiating ports for the Fabric Port controller,
* the Fabric Controller, and the Name services controller,
*
* @param domain Pointer to domain object
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t
ocs_femul_init(ocs_domain_t *domain)
{
/* Initialize Port ID allocation pool */
domain->portid_pool = ocs_bitmap_alloc(OCS_FEMUL_NUM_PORTID);
ocs_atomic_init(&domain->femul_count, 0);
return 0;
}
/**
* @brief Shut down Fabric Emulation
*
* The Fabric Emulation is shut down. This includes freeing port ID allocation
* bitmap
*
* @param domain Pointer to domain object
*
* @return returns 0
*/
int32_t
ocs_femul_shutdown(ocs_domain_t *domain)
{
ocs_bitmap_free(domain->portid_pool);
return 0;
}
/**
* @brief Process FLOGI while in Fabric Emulation mode
*
* An inbound FLOGI request is processed while in Fabric Emulation mode. In this
* case a port ID is allocated and returned to the requestor, with service
* parameters indicating that this node is an F_port.
*
* @param io Pointer to an IO object
* @param hdr Pointer to the FC header
* @param payload Pointer to payload buffer (service parameters)
* @param payload_len Length of payload buffer in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t
ocs_femul_process_flogi(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
ocs_t *ocs = io->ocs;
ocs_domain_t *domain = io->node->sport->domain;
fc_plogi_payload_t *flogi = payload;
uint64_t port_name = ocs_be64toh(((long)flogi->port_name_hi << 32 |
flogi->port_name_lo));
int32_t portid;
ocs_ns_record_t *nsrec;
/*
* handle the case where we may receive another FLOGI. Check the name
* server DB for the port name (from the FLOGI). If it exists, then
* just send the FLOGI accept.
*/
nsrec = ocs_ns_find_port_name(domain->ocs_ns, port_name);
if (nsrec != NULL) {
ocs_log_debug(ocs, "%s: Found existing NS record, send FLOGI acc\n", __func__);
ocs_send_flogi_acc(io, ocs_be16toh(hdr->ox_id), TRUE, NULL, NULL);
return 0;
}
/* Allocate the physical port id */
portid = ocs_femul_portid_alloc(domain);
if (portid < 0) {
ocs_log_err(ocs, "%s: ocs_femul_portid_alloc() failed: %d\n", __func__, portid);
return -1;
}
/* Save OX_ID for FLOGI accecpt */
domain->femul_oxid = ocs_be16toh(hdr->ox_id);
/* Save port_name for NS database accecpt */
domain->femul_port_name = port_name;
/*
* During cable pull events, we may get a second flogi request. So see if the
* fabric vports have been created, to prevent creating duplicates.
*/
if (!domain->femul_vports_started) {
domain->femul_vports_started = TRUE;
/*
* Attach the domain with the local physical port
*
* Note: Use the fabric controller address for the physical port
* so that any traffic to the fabric controller is not discarded
* before the vport is registered.
*/
__ocs_domain_attach_internal(domain, portid);
/* Create F_Port controller, Fabric controller, and Directory server (name server) */
ocs_atomic_add_return(&domain->femul_count, 4);
ocs_sport_vport_new(domain, 0ll, 0ll, FC_ADDR_FABRIC, FALSE, FALSE, NULL, NULL, FALSE);
ocs_sport_vport_new(domain, 0ll, 0ll, FC_ADDR_NAMESERVER, FALSE, FALSE, NULL, NULL, FALSE);
ocs_sport_vport_new(domain, 0ll, 0ll, FC_ADDR_CONTROLLER, FALSE, FALSE, NULL, NULL, FALSE);
}
/* Free the IO that was passed in */
ocs_els_io_free(io);
return 0;
}
/**
* @brief Process FDISC while in Fabric Emulation mode
*
* An inbound FDISC request is processed while in Fabric Emulation mode. In this
* case a port ID is allocated and returned to the requestor, with service
* parameters indicating that this node is an F_port.
*
* @param io Pointer to an IO object
* @param hdr Pointer to the FC header
* @param payload Pointer to payload buffer (service parameters)
* @param payload_len Length of payload buffer in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t
ocs_femul_process_fdisc(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
ocs_t *ocs = io->ocs;
int32_t portid;
ocs_node_t *rspnode;
ocs_io_t *rspio;
/* Allocate the physical port id */
portid = ocs_femul_portid_alloc(io->node->sport->domain);
if (portid < 0) {
ocs_log_err(ocs, "%s: ocs_femul_portid_alloc() failed: %d\n", __func__, portid);
return -1;
}
/* Allocate a node */
rspnode = ocs_node_alloc(io->node->sport, portid, FALSE, FALSE);
if (rspnode == NULL) {
ocs_log_err(ocs, "%s: ocs_node_alloc failed\n", __func__);
return -1;
}
ocs_node_transition(rspnode, __ocs_d_init, NULL);
/* Allocate an IO for the response */
rspio = ocs_els_io_alloc(rspnode, sizeof(fc_plogi_payload_t), OCS_ELS_ROLE_RESPONDER);
if (rspio == NULL) {
ocs_log_err(ocs, "%s/OCS_EVT_FDISC_RCVD: ocs_els_io_alloc failed\n", __func__);
ocs_node_free(rspnode);
return -1;
}
/* Send response */
ocs_send_flogi_acc(rspio, ocs_be16toh(hdr->ox_id), TRUE, NULL, NULL);
/* Free the IO that was passed in */
ocs_els_io_free(io);
return 0;
}
/**
* @brief Process sport attached event
*
* Called when a sport is attached. This function will create a name server
* entry for the sport.
*
* @param sport Pointer to the sport object
*/
void
ocs_femul_sport_attach(ocs_sport_t *sport)
{
ocs_t *ocs = sport->ocs;
ocs_domain_t *domain = sport->domain;
ocs_ns_record_t *nsrec;
if (sport->fc_id == FC_ADDR_FABRIC ||
sport->fc_id == FC_ADDR_NAMESERVER ||
sport->fc_id == FC_ADDR_CONTROLLER) {
return;
}
nsrec = ocs_ns_alloc(domain->ocs_ns, sport->fc_id);
if (nsrec == NULL) {
ocs_log_err(ocs, "%s: failed to allocate nsrec for fc_id 0x%x\n",
__func__, sport->fc_id);
return;
}
nsrec->fc4_types = (1 << FC_GS_TYPE_BIT(FC_TYPE_FCP));
nsrec->fc4_features = ((sport->enable_ini ? FC4_FEATURE_INITIATOR : 0) |
(sport->enable_tgt ? FC4_FEATURE_TARGET : 0));
nsrec->type_code = FC_TYPE_FCP;
nsrec->node_name = sport->wwnn;
nsrec->port_name = sport->wwpn;
nsrec->class_of_srvc = FCCT_CLASS_OF_SERVICE_2;
}
/**
* @brief Process fabric emulation ports attached event
*
* Called with all of the well known port attaches have completed. At this point
* the FLOGI accept is sent to the direct connect port.
*
* @param domain Pointer to the domain object
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t ocs_femul_ports_attached(ocs_domain_t *domain)
{
ocs_t *ocs;
ocs_sport_t *fabric;
int32_t fc_id;
ocs_node_t *node;
ocs_io_t *rspio;
ocs_ns_record_t *nsrec;
ocs_assert(domain != NULL, -1);
ocs = domain->ocs;
ocs_assert(ocs != NULL, -1);
ocs_log_debug(ocs, "%s all sports attached\n", __func__);
fabric = ocs_sport_find(domain, FC_ADDR_FABRIC);
if (fabric == NULL) {
ocs_log_warn(ocs, "%s: ocs_sport_find(FC_ADD_FABRIC) failed\n", __func__);
return -1;
}
/* Assign an FC_ID for the FLOGI node */
fc_id = ocs_femul_portid_alloc(domain);
/* Allocate a node */
node = ocs_node_alloc(fabric, fc_id, 0, 0);
if (node == NULL) {
ocs_log_err(ocs, "%s: ocs_node_alloc() failed\n", __func__);
ocs_femul_portid_free(domain, fc_id);
return -1;
}
ocs_node_transition(node, __ocs_d_init, NULL);
/* Allocate an IO */
rspio = ocs_els_io_alloc(node, sizeof(fc_plogi_payload_t), OCS_ELS_ROLE_RESPONDER);
if (rspio == NULL) {
ocs_log_err(ocs, "%s: ocs_els_io_alloc() failed\n", __func__);
ocs_node_free(node);
ocs_femul_portid_free(domain, fc_id);
return -1;
}
/*
* Set the port name that was sent of the flogi in the name server db.
*
* Note: This must be done before sending the FLOGI accept in case the
* initiator sends another FLOGI. We need to find the name server
* entry so we can just send FLOGI-ACC and not create any more
* vports
*/
nsrec = ocs_ns_alloc(domain->ocs_ns, fc_id);
if (nsrec != NULL) {
nsrec->port_name = domain->femul_port_name;
}
/* send FLOGI response */
ocs_send_flogi_acc(rspio, domain->femul_oxid, TRUE, NULL, NULL);
return 0;
}
/**
* @brief Process and RFT_ID FCGS request
*
* An RFT_ID request is processed while in Fabric Emulation mode. In this case, the
* payload contains the Port ID and fc4_typess of the requester which is added
* to the directory services database.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t
ocs_femul_process_rft_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rft_id_t *rftid = payload;
ocs_ns_record_t *nsrec;
uint32_t port_id = ocs_be32toh(rftid->port_id);
node_printf(io->node, "port_id x%x fc4_types x%x\n", ocs_be32toh(rftid->port_id), ocs_be32toh(rftid->fc4_types));
/* Allocate a name services record */
nsrec = ocs_ns_alloc(io->node->sport->domain->ocs_ns, port_id);
if (nsrec == NULL) {
ocs_log_err(io->ocs, "%s: ocs_ns_alloc failed\n", __func__);
return -1;
}
/* Update the fc4_types */
nsrec->fc4_types = ocs_be32toh(rftid->fc4_types);
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RFF_ID request
*
* The RFF_ID request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rff_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rff_id_t *rffid = payload;
uint32_t port_id = ocs_be32toh(rffid->port_id);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
ocs_ns_record_t *nsrec;
nsrec = ocs_ns_alloc(ns, port_id);
if (nsrec == NULL) {
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_DATA_BASE_FULL);
return -1;
}
/* Update fc4_features and type_code */
nsrec->fc4_features = rffid->fc4_features;
nsrec->type_code = rffid->type_code;
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process and DA_ID FCGS request
*
* An DA_ID request is processed while in Fabric Emulation mode. In this case, the
* payload contains the Port ID and fc4_typess of the requester which is added
* to the directory services database.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
int32_t
ocs_femul_process_da_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_da_id_t *da_id = payload;
uint32_t port_id = ocs_be32toh(da_id->port_id);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
if (ns != NULL) {
ocs_ns_free(ns, port_id);
}
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RPN_ID request
*
* The RPN_ID request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rpn_id_t *rpnid = payload;
uint32_t port_id = ocs_be32toh(rpnid->port_id);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
ocs_ns_record_t *nsrec;
nsrec = ocs_ns_alloc(ns, port_id);
if (nsrec == NULL) {
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_DATA_BASE_FULL);
return -1;
}
/* Update port name */
nsrec->port_name = ocs_be64toh(rpnid->port_name);
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RNN_ID request
*
* The RNN_ID request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rnn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rnn_id_t *rnnid = payload;
uint32_t port_id = ocs_be32toh(rnnid->port_id);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
ocs_ns_record_t *nsrec;
nsrec = ocs_ns_alloc(ns, port_id);
if (nsrec == NULL) {
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_DATA_BASE_FULL);
return -1;
}
/* Update node name */
nsrec->node_name = ocs_be64toh(rnnid->node_name);
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RCS_ID request
*
* The RCS_ID request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rcs_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rcs_id_t *rcsid = payload;
uint32_t port_id = ocs_be32toh(rcsid->port_id);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
ocs_ns_record_t *nsrec;
nsrec = ocs_ns_alloc(ns, port_id);
if (nsrec == NULL) {
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_DATA_BASE_FULL);
return -1;
}
/* Update node name */
nsrec->class_of_srvc = ocs_be32toh(rcsid->class_of_srvc);
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RSNN_NN request
*
* The register symbolic node name (RSNN_NN) request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rsnn_nn(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcgs_rsnn_nn_t *rsnnnn = payload;
uint64_t node_name = ocs_be64toh(rsnnnn->node_name);
ocs_ns_t *ns = io->node->sport->domain->ocs_ns;
ocs_ns_record_t *nsrec;
ocs_t *ocs = io->ocs;
for (nsrec = NULL; (nsrec = ocs_ns_enumerate(ns, nsrec)) != NULL; ) {
if (nsrec->node_name == node_name) {
break;
}
}
if (nsrec == NULL) {
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_DATA_BASE_FULL);
return -1;
}
nsrec->sym_node_name = ocs_malloc(ocs, rsnnnn->name_len + 1, OCS_M_ZERO | OCS_M_NOWAIT);
if (nsrec->sym_node_name == NULL) {
ocs_log_err(io->ocs, "%s: ocs_malloc sym_node_name failed\n", __func__);
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_NO_ADDITIONAL_EXPLANATION);
return -1;
}
nsrec->sym_node_name_len = rsnnnn->name_len + 1;
ocs_memcpy(nsrec->sym_node_name, rsnnnn->sym_node_name, rsnnnn->name_len);
/* Extract symbolic node name */
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RSPN_ID request
*
* The RSPN_ID request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rspn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RHBA request
*
* The RHBA request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rhba(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
/* Just send an accept - data is not stored */
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process RPA request
*
* The RPA request is processed.
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_rpa(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
/* Just send an accept - data is not stored */
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process GNN_ID command
*
* Process the GNN_ID request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gnn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_gnnid_req_t *gnnid = payload;
uint32_t port_id = fc_be24toh(gnnid->port_id);
fcct_gnnid_acc_t *acc = io->els_rsp.virt;
ocs_ns_record_t *nsrec = NULL;
uint32_t cmd_rsp_code = FCCT_HDR_CMDRSP_ACCEPT;
uint32_t reason_code = 0;
uint32_t reason_code_explanation = 0;
/* Find the record for the port */
nsrec = ocs_ns_find_port_id(io->node->sport->domain->ocs_ns, port_id);
if (nsrec != NULL) {
acc->node_name = ocs_htobe64(nsrec->node_name);
io->wire_len += sizeof(acc->node_name);
} else {
ocs_log_test(io->ocs, "%s port_id 0x%x not found\n",
__func__, port_id);
cmd_rsp_code = FCCT_HDR_CMDRSP_REJECT;
reason_code = FCCT_UNABLE_TO_PERFORM;
reason_code_explanation = FCCT_DEVICES_NOT_IN_COMMON_ZONE;
}
return ocs_send_ct_rsp(io, hdr->ox_id, payload, cmd_rsp_code,
reason_code, reason_code_explanation);
}
/**
* @brief Process GPN_ID command
*
* Process the GPN_ID request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_gpnid_req_t *gpnid = payload;
uint32_t port_id = fc_be24toh(gpnid->port_id);
fcct_gpnid_acc_t *acc = io->els_rsp.virt;
ocs_ns_record_t *nsrec = NULL;
uint32_t cmd_rsp_code = FCCT_HDR_CMDRSP_ACCEPT;
uint32_t reason_code = 0;
uint32_t reason_code_explanation = 0;
/* Find the record for the port */
nsrec = ocs_ns_find_port_id(io->node->sport->domain->ocs_ns, port_id);
if (nsrec != NULL) {
acc->port_name = ocs_htobe64(nsrec->port_name);
io->wire_len += sizeof(acc->port_name);
} else {
ocs_log_test(io->ocs, "%s port_id 0x%x not found\n",
__func__, port_id);
cmd_rsp_code = FCCT_HDR_CMDRSP_REJECT;
reason_code = FCCT_UNABLE_TO_PERFORM;
reason_code_explanation = FCCT_DEVICES_NOT_IN_COMMON_ZONE;
}
return ocs_send_ct_rsp(io, hdr->ox_id, payload, cmd_rsp_code,
reason_code, reason_code_explanation);
}
/**
* @brief Process GFPN_ID command
*
* Process the GFPN_ID request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gfpn_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT,
FCCT_FABRIC_PORT_NAME_NOT_REGISTERED, 0);
}
/**
* @brief Process GFF_ID command
*
* Process the GFF_ID request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gff_id(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_gffid_req_t *gffid = payload;
uint32_t port_id = fc_be24toh(gffid->port_id);
fcct_gffid_acc_t *acc = io->els_rsp.virt;
ocs_ns_record_t *nsrec = NULL;
uint32_t cmd_rsp_code = FCCT_HDR_CMDRSP_ACCEPT;
uint32_t reason_code = 0;
uint32_t reason_code_explanation = 0;
/* Find the record for the port */
nsrec = ocs_ns_find_port_id(io->node->sport->domain->ocs_ns, port_id);
if (nsrec != NULL) {
acc->fc4_feature_bits = nsrec->fc4_features;
io->wire_len += sizeof(acc->fc4_feature_bits);
} else {
ocs_log_test(io->ocs, "%s port_id 0x%x not found\n",
__func__, port_id);
cmd_rsp_code = FCCT_HDR_CMDRSP_REJECT;
reason_code = FCCT_UNABLE_TO_PERFORM;
reason_code_explanation = FCCT_DEVICES_NOT_IN_COMMON_ZONE;
}
return ocs_send_ct_rsp(io, hdr->ox_id, payload, cmd_rsp_code,
reason_code, reason_code_explanation);
}
/**
* @brief Process GID_FT command
*
* Process the GID_FT request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gid_ft(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_gidft_acc_t *gidft = io->els_rsp.virt;
uint32_t reqid = fc_be24toh(hdr->s_id);
uint32_t idx;
uint32_t max_entries;
ocs_ns_record_t *nsrec = NULL;
/* Compute maximum entries, given the response payload size */
max_entries = (io->els_rsp.size - sizeof(gidft->hdr)) / sizeof(uint32_t);
/* enumerate all nodes that are in the domain to which the requestor belongs */
idx = 0;
for (nsrec = ocs_ns_enumerate(io->node->sport->domain->ocs_ns, nsrec); nsrec != NULL;
nsrec = ocs_ns_enumerate(io->node->sport->domain->ocs_ns, nsrec)) {
if (idx >= max_entries) {
ocs_log_test(io->ocs, "%s: overflowed GID_FT response buffer\n", __func__);
break;
}
/* Skip this entry if it blocks to the requestor */
if (nsrec->port_id == reqid) {
continue;
}
gidft->port_list[idx].ctl = 0;
gidft->port_list[idx].port_id = fc_htobe24(nsrec->port_id);
io->wire_len += sizeof(uint32_t);
idx++;
}
gidft->port_list[idx > 0 ? idx-1 : idx].ctl = 0x80;
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process GID_PT command
*
* Process the GID_PT request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_gid_pt(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_gidpt_acc_t *gidpt = io->els_rsp.virt;
uint32_t reqid = fc_be24toh(hdr->s_id);
uint32_t idx;
uint32_t max_entries;
ocs_ns_record_t *nsrec = NULL;
/* Compute maximum entries, given the response payload size */
max_entries = (io->els_rsp.size - sizeof(gidpt->hdr)) / sizeof(uint32_t);
/* enumerate all nodes that are in the domain to which the requestor belongs */
idx = 0;
for (nsrec = ocs_ns_enumerate(io->node->sport->domain->ocs_ns, nsrec); nsrec != NULL;
nsrec = ocs_ns_enumerate(io->node->sport->domain->ocs_ns, nsrec)) {
if (idx >= max_entries) {
ocs_log_test(io->ocs, "%s: overflowed GID_PT response buffer\n", __func__);
break;
}
/* Skip this entry if it blocks to the requestor */
if (nsrec->port_id == reqid) {
continue;
}
gidpt->port_list[idx].ctl = 0;
gidpt->port_list[idx].port_id = fc_htobe24(nsrec->port_id);
io->wire_len += sizeof(uint32_t);
idx++;
}
gidpt->port_list[idx > 0 ? idx-1 : idx].ctl = 0x80;
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
/**
* @brief Process GA_NXT command
*
* Process the GA_NXT request
*
* @param io Pointer to IO object
* @param hdr Pointer to FC header
* @param payload Address of payload
* @param payload_len Length of payload in bytes
*
* @return returns 0 for success, a negative error code value for failure.
*/
static int32_t
ocs_femul_process_ga_nxt(ocs_io_t *io, fc_header_t *hdr, void *payload, uint32_t payload_len)
{
fcct_ganxt_req_t *ganxt_req = payload;
fcct_ganxt_acc_t *ganxt_resp = io->els_rsp.virt;
uint32_t port_id = ganxt_req->port_id;
ocs_ns_record_t *nsrec = NULL, *tmp_nsrec = NULL;
ocs_memset(io->els_rsp.virt, 0, sizeof(ganxt_resp));
while ((nsrec = ocs_ns_enumerate(io->node->sport->domain->ocs_ns, nsrec)) != NULL) {
if (nsrec->port_id > port_id) {
if (!tmp_nsrec || (tmp_nsrec->port_id > nsrec->port_id)) {
tmp_nsrec = nsrec;
}
}
}
if (tmp_nsrec) {
ganxt_resp->port_id = tmp_nsrec->port_id;
ganxt_resp->port_name = tmp_nsrec->port_name;
ganxt_resp->sym_node_name_len = tmp_nsrec->sym_node_name_len;
ocs_memcpy(ganxt_resp->sym_node_name, tmp_nsrec->sym_node_name, MIN(tmp_nsrec->sym_node_name_len, 255));
ganxt_resp->class_of_serv = tmp_nsrec->class_of_srvc;
ganxt_resp->node_name = tmp_nsrec->node_name;
return ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_ACCEPT, 0, 0);
}
ocs_send_ct_rsp(io, hdr->ox_id, payload, FCCT_HDR_CMDRSP_REJECT, FCCT_UNABLE_TO_PERFORM,
FCCT_NO_ADDITIONAL_EXPLANATION);
return -1;
}