/* Returns 0 (invalid base version) on error */
static uint8_t get_base_version_from_ni(int fd, uint32_t aid, int pkey_index)
{
uint8_t rc;
void *umad_p = NULL;
struct umad_smp *send_mad;
size_t length;
umad_p = umad_alloc(1, sizeof(*send_mad) + umad_size());
if (!umad_p) {
OUTPUT_ERROR ("can't alloc umad for OPA check; send_size %ld\n", sizeof(*send_mad));
return 0;
}
memset(umad_p, 0, sizeof(*send_mad) + umad_size());
umad_set_grh(umad_p, 0);
send_mad = umad_get_mad(umad_p);
send_mad->base_version = UMAD_BASE_VERSION;
send_mad->mgmt_class = UMAD_CLASS_SUBN_DIRECTED_ROUTE;
send_mad->class_version = 0x01;
send_mad->method = UMAD_METHOD_GET;
send_mad->tid = htonl(0xDEADBEEF);
send_mad->attr_id = htons(UMAD_SM_ATTR_NODE_INFO);
send_mad->dr_slid = 0xffff;
send_mad->dr_dlid = 0xffff;
umad_set_pkey(umad_p, pkey_index);
umad_set_addr(umad_p, 0xffff, 0, 0, 0);
rc = 0;
if (umad_send(fd, aid, umad_p, sizeof(*send_mad), 100, 1) < 0)
goto free_mad;
length = sizeof(*send_mad);
if (umad_recv(fd, umad_p, (int *)&length, 100) < 0)
goto free_mad;
if (length < sizeof(*send_mad))
goto free_mad;
if (umad_status(umad_p) != 0)
goto free_mad;
rc = ((NODE_INFO *)(send_mad->data))->BaseVersion;
free_mad:
free(umad_p);
return rc;
}
/******************************************************************************
* join_multicast_group
******************************************************************************/
int join_multicast_group(subn_adm_method method,struct mcast_parameters *params) {
int portid = -1;
int agentid = -1;
void *umad_buff = NULL;
void *mad = NULL;
int length = MAD_SIZE;
int test_result = 0;
// mlid will be assigned to the new LID after the join
if (umad_init() < 0) {
fprintf(stderr, "failed to init the UMAD library\n");
goto cleanup;
}
/* use casting to loose the "const char0 *" */
portid = umad_open_port((char*)params->ib_devname,params->ib_port);
if (portid < 0) {
fprintf(stderr,"failed to open UMAD port %d\n",params->ib_port);
goto cleanup;
}
agentid = umad_register(portid,MANAGMENT_CLASS_SUBN_ADM, 2, 0, 0);
if (agentid < 0) {
fprintf(stderr,"failed to register UMAD agent for MADs\n");
goto cleanup;
}
umad_buff = umad_alloc(1, umad_size() + MAD_SIZE);
if (!umad_buff) {
fprintf(stderr, "failed to allocate MAD buffer\n");
goto cleanup;
}
mad = umad_get_mad(umad_buff);
prepare_mcast_mad(method,params,(struct sa_mad_packet_t *)mad);
if (umad_set_addr(umad_buff,params->sm_lid,1,params->sm_sl,QP1_WELL_KNOWN_Q_KEY) < 0) {
fprintf(stderr, "failed to set the destination address of the SMP\n");
goto cleanup;
}
if (umad_send(portid,agentid,umad_buff,MAD_SIZE,100,5) < 0) {
fprintf(stderr, "failed to send MAD\n");
goto cleanup;
}
if (umad_recv(portid,umad_buff,&length,5000) < 0) {
fprintf(stderr, "failed to receive MAD response\n");
goto cleanup;
}
if (check_mad_status((struct sa_mad_packet_t*)mad)) {
fprintf(stderr, "failed to get mlid from MAD\n");
goto cleanup;
}
// "Join multicast group" message was sent
if (method == SUBN_ADM_METHOD_SET) {
get_mlid_from_mad((struct sa_mad_packet_t*)mad,¶ms->mlid);
params->mcast_state |= MCAST_IS_JOINED;
// "Leave multicast group" message was sent
} else {
params->mcast_state &= ~MCAST_IS_JOINED;
}
cleanup:
if (umad_buff)
umad_free(umad_buff);
if (portid >= 0) {
if (agentid >= 0) {
if (umad_unregister(portid, agentid)) {
fprintf(stderr, "failed to deregister UMAD agent for MADs\n");
test_result = 1;
}
}
if (umad_close_port(portid)) {
fprintf(stderr, "failed to close UMAD portid\n");
test_result = 1;
}
}
return test_result;
}
/** ========================================================================= */
FSTATUS oib_recv_mad_alloc(struct oib_port *port, uint8_t **recv_mad, size_t *recv_size,
int timeout_ms, struct oib_mad_addr *addr)
{
#define STL_MAD_SIZE 2048 // Note, hack should reference size value OFED standard header file
FSTATUS status = FSUCCESS;
ib_user_mad_t *umad = NULL;
int mad_agent;
uint32_t my_umad_status = 0;
size_t length;
if (!port || !recv_mad || !recv_size)
return FINVALID_PARAMETER;
length = STL_MAD_SIZE;
umad = umad_alloc(1, umad_size() + length);
if (!umad) {
OUTPUT_ERROR("can't alloc MAD sized umad\n");
status = FINSUFFICIENT_MEMORY;
goto done;
}
retry:
mad_agent = umad_recv(port->umad_fd, umad, (int *)&length, timeout_ms);
// There are 4 combinations:
// assorted errors: mad_agent < 0, length <= MAD_SIZE
// large RMPP response: mad_agent < 0, length > MAD_SIZE, umad_status==0
// got response: mad_agent >= 0, length <= MAD_SIZE, umad_status==0
// no response: mad_agent >= 0, length <= MAD_SIZE, umad_status == error
if (mad_agent < 0) {
if (length <= STL_MAD_SIZE) {
// no MAD returned. None available.
DBGPRINT ("recv error on MAD sized umad (%s) length=%ld\n",
strerror(errno), length);
if (errno == EINTR)
goto retry;
status = (errno == ETIMEDOUT)?FNOT_DONE:FERROR;
goto done;
} else {
/* Need a larger buffer for RMPP */
DBGPRINT ("Received 1st MAD length=%ld\n",length);
umad_free(umad);
umad = umad_alloc(1, umad_size() + length);
if (!umad) {
OUTPUT_ERROR ("can't alloc umad length %ld\n", length);
status = FINSUFFICIENT_MEMORY;
goto done;
}
// just to be safe, we supply a timeout. However it
// should be unnecessary since we know we have a packet
retry2:
if ((mad_agent = umad_recv(port->umad_fd, umad, (int *)&length, OIB_UTILS_DEF_TIMEOUT_MS)) < 0) {
OUTPUT_ERROR ("recv error on umad length %ld (%s)\n", length, strerror(errno));
if (errno == EINTR)
goto retry2;
status = FOVERRUN;
*recv_size = length;
goto done;
}
}
}
if (mad_agent >= UMAD_CA_MAX_AGENTS) {
OUTPUT_ERROR ("invalid mad agent %d - dropping\n", mad_agent);
status = FERROR;
goto done;
}
my_umad_status = umad_status(umad);
DBGPRINT("UMAD Status: %s (%d)\n", strerror(my_umad_status), my_umad_status);
if (my_umad_status != 0) {
status = (my_umad_status == ETIMEDOUT) ? FTIMEOUT : FREJECT;
}
DBGPRINT("Received MAD length=%ld, total umad size=%ld\n",length, length + umad_size());
if (dbg_file) {
struct umad_hdr * umad_hdr = (struct umad_hdr *)umad_get_mad(umad);
DBGPRINT(" Base_Version 0x%x Class 0x%x Method 0x%x attrId 0x%x attr_mod 0x%x status 0x%x\n",
umad_hdr->base_version, umad_hdr->mgmt_class, umad_hdr->method,
umad_hdr->attr_id, umad_hdr->attr_mod, umad_hdr->status);
umad_dump(umad);
oib_dump_mad(dbg_file, umad_get_mad(umad), length, "rcv mad\n");
}
// Allocate and copy to new buffer.
*recv_mad = calloc (1, length);
if (*recv_mad == NULL) {
OUTPUT_ERROR ("can't alloc return buffer length %ld\n", length);
status = FINSUFFICIENT_MEMORY;
goto done;
}
memcpy (*recv_mad, umad_get_mad(umad), length);
*recv_size = length;
if (addr != NULL) {
addr->lid = IB2STL_LID(ntoh16(umad->addr.lid));
addr->sl = umad->addr.sl;
addr->qkey = ntoh32(umad->addr.qkey);
addr->qpn = ntoh32(umad->addr.qpn);
addr->pkey = oib_find_pkey_from_idx(port, umad_get_pkey(umad));
}
done:
if (umad != NULL) {
umad_free(umad);
}
return status;
}
/** ========================================================================= */
FSTATUS oib_recv_mad_no_alloc(struct oib_port *port, uint8_t *recv_mad, size_t *recv_size,
int timeout_ms, struct oib_mad_addr *addr)
{
size_t length = *recv_size;
ib_user_mad_t *umad = NULL;
int mad_agent;
uint32_t my_umad_status = 0;
FSTATUS status = FSUCCESS;
if (!port || !recv_mad || !*recv_size)
return FINVALID_PARAMETER;
umad = umad_alloc(1, length + umad_size());
if (!umad) {
OUTPUT_ERROR ("can't alloc umad length %ld\n", length);
status = FINSUFFICIENT_MEMORY;
goto done;
}
retry:
mad_agent = umad_recv(port->umad_fd, umad, (int *)&length, timeout_ms);
// There are 4 combinations:
// assorted errors: mad_agent < 0, length <= MAD_SIZE
// large RMPP response: mad_agent < 0, length > MAD_SIZE, umad_status==0
// got response: mad_agent >= 0, length <= MAD_SIZE, umad_status==0
// no response: mad_agent >= 0, length <= MAD_SIZE, umad_status == error
if (mad_agent < 0) {
if (length <= *recv_size) {
// no MAD returned. None available.
DBGPRINT ("recv error on umad (size %zu) (%s)\n", *recv_size,
strerror(errno));
if (errno == EINTR)
goto retry;
status = (errno == ETIMEDOUT) ? FNOT_DONE:FERROR;
goto done;
} else {
// this routine is not expecting large responses
OUTPUT_ERROR ("Rx Packet size %zu larger than mad-size %zu\n",
length, *recv_size);
status = FOVERRUN;
if (recv_mad)
memcpy(recv_mad, umad_get_mad(umad), *recv_size);
// Clean out Rx packet 'cause it will never go away..
umad_free(umad);
umad = umad_alloc(1, umad_size() + length);
if (!umad) {
OUTPUT_ERROR ("can't alloc umad for rx cleanup, length %ld\n", length);
status = FINSUFFICIENT_MEMORY;
goto done;
}
// just to be safe, we supply a timeout. However it
// should be unnecessary since we know we have a packet
retry2:
if (umad_recv(port->umad_fd, umad, (int *)&length, OIB_UTILS_DEF_TIMEOUT_MS) < 0) {
OUTPUT_ERROR ("recv error on cleanup, length %ld (%s)\n", length,
strerror(errno));
if (errno == EINTR)
goto retry2;
goto done;
}
if (dbg_file) {
umad_dump(umad);
oib_dump_mad(dbg_file, umad_get_mad(umad), length, "rcv mad discarded\n");
}
goto done;
}
}
if (mad_agent >= UMAD_CA_MAX_AGENTS) {
OUTPUT_ERROR ("invalid mad agent %d\n", mad_agent);
status = FERROR;
goto done;
}
my_umad_status = umad_status(umad);
DBGPRINT("UMAD Status: %s (%d)\n", strerror(my_umad_status), my_umad_status);
if (my_umad_status != 0) {
status = (my_umad_status == ETIMEDOUT) ? FTIMEOUT : FREJECT;
}
DBGPRINT("Received MAD: Agent %d, length=%ld\n", mad_agent, length);
if (dbg_file) {
umad_dump(umad);
oib_dump_mad(dbg_file, umad_get_mad(umad), length, "rcv mad\n");
}
// Copy the data
if (recv_mad && length > 0) {
*recv_size = length;
memcpy(recv_mad, umad_get_mad(umad), length);
}
if (addr != NULL) {
addr->lid = IB2STL_LID(ntoh16(umad->addr.lid));
addr->sl = umad->addr.sl;
addr->qkey = ntoh32(umad->addr.qkey);
addr->qpn = ntoh32(umad->addr.qpn);
addr->pkey = oib_find_pkey_from_idx(port, umad_get_pkey(umad));
}
done:
if (umad != NULL) {
umad_free(umad);
}
return status;
}
/** ========================================================================= */
FSTATUS oib_send_mad2(struct oib_port *port, uint8_t *send_mad, size_t send_size,
struct oib_mad_addr *addr, int timeout_ms, int retries)
{
FSTATUS status = FSUCCESS;
void *umad_p = NULL;
int response;
uint8_t mclass, class_ver;
int aid;
int correctedTimeout;
struct umad_hdr *mad_hdr = (struct umad_hdr *)send_mad;
uint16_t ib_lid;
int pkey_idx;
size_t padded_size;
if (!port || !send_mad || !send_size || !addr)
return FINVALID_PARAMETER;
ib_lid = addr->lid & 0xffff;
// Make sure we are registered for this class/version...
mclass = mad_hdr->mgmt_class;
class_ver = mad_hdr->class_version;
response = (mad_hdr->method & 0x80)
|| (mad_hdr->method == UMAD_METHOD_TRAP_REPRESS)
|| (mclass == UMAD_CLASS_BM &&
ntohl(mad_hdr->attr_mod) & BM_ATTRIB_MOD_RESPONSE);
aid = port->umad_agents[class_ver][mclass];
DBGPRINT (" Management Class 0x%x method 0x%x attrId 0x%x attrM 0x%x\n",mclass, mad_hdr->method,
ntohs(mad_hdr->attr_id), ntohl(mad_hdr->attr_mod));
DBGPRINT (" base_version 0x%x class_version 0x%x\n",mad_hdr->base_version, mad_hdr->class_version);
if (aid == OIB_INVALID_AGENTID) {
// automatically register for "send" only
int err = 0;
struct oib_class_args mgmt_class[2];
memset(mgmt_class, 0, sizeof(mgmt_class));
mgmt_class[0].base_version = mad_hdr->base_version;
mgmt_class[0].mgmt_class = mad_hdr->mgmt_class;
mgmt_class[0].class_version = mad_hdr->class_version;
mgmt_class[0].is_responding_client = 0;
mgmt_class[0].is_trap_client = 0;
mgmt_class[0].is_report_client = 0;
mgmt_class[0].kernel_rmpp = 1;
mgmt_class[0].use_methods = 0;
DBGPRINT ("auto registering class 0x%02x; version 0x%x for send only\n",
mclass, class_ver);
if ((err = oib_bind_classes(port, mgmt_class)) != 0) {
OUTPUT_ERROR ("Failed to auto register for class 0x%02x: %s\n",
mclass, strerror(err));
status = FERROR;
goto done;
}
aid = port->umad_agents[class_ver][mclass];
}
// Initialize the user mad.
// umad has limititation that outgoing packets must be > 36 bytes.
padded_size = ( MAX(send_size,36) + 7) & ~0x7;
DBGPRINT ("dlid %d qpn %d qkey %x sl %d\n", ib_lid, addr->qpn, addr->qkey, addr->sl);
umad_p = umad_alloc(1, padded_size + umad_size());
if (!umad_p) {
OUTPUT_ERROR ("can't alloc umad send_size %ld\n", padded_size);
status = FINSUFFICIENT_MEMORY;
goto done;
}
memset(umad_p, 0, padded_size + umad_size());
memcpy (umad_get_mad(umad_p), send_mad, send_size); /* Copy mad to umad */
umad_set_grh(umad_p, 0);
pkey_idx = oib_find_pkey(port, addr->pkey);
if (pkey_idx < 0) {
DBGPRINT("P_Key 0x%x not found in pkey table\n", addr->pkey);
if (addr->pkey == 0xffff) {
pkey_idx = oib_find_pkey(port, 0x7fff);
if (pkey_idx < 0) {
OUTPUT_ERROR("Failed to find 0x7fff pkey defaulting to index 1\n");
pkey_idx = 1;
} else {
DBGPRINT("... using 0x7fff found at index %d\n", pkey_idx);
}
} else {
// Previously, this code would try to find the limited management pkey
// if it could not find the requested pkey, and use that pkey instead.
// This would often "work" because all nodes should have the limited
// management pkey, but b/c it was a limited member, this would result
// in potential timeouts - especially where the full management pkey was
// required.
// Changed this code fail immediately without retrying a new pkey.
OUTPUT_ERROR("Failed to find requested pkey:0x%x, class 0x%x aid:0x%x \n",
addr->pkey, mclass, ntohs(mad_hdr->attr_id));
status = FPROTECTION;
goto done;
}
}
umad_set_pkey(umad_p, pkey_idx);
umad_set_addr(umad_p, ib_lid?ib_lid:0xffff, addr->qpn, addr->sl, addr->qkey);
if (dbg_file) {
DBGPRINT(">>> sending: len %ld pktsz %zu\n", send_size, umad_size() + padded_size);
umad_dump(umad_p);
oib_dump_mad(dbg_file, umad_get_mad(umad_p), send_size, "send mad\n");
}
correctedTimeout = (timeout_ms == OIB_SEND_TIMEOUT_DEFAULT)
? OIB_UTILS_DEF_TIMEOUT_MS : timeout_ms;
if (umad_send(port->umad_fd, aid, umad_p, padded_size, (response ? 0 : correctedTimeout), retries) < 0) {
OUTPUT_ERROR("send failed; %s, agent id %u MClass 0x%x method 0x%x attrId 0x%x attrM 0x%x\n",
strerror(errno), aid, mclass, mad_hdr->method,
ntohs(mad_hdr->attr_id), ntohl(mad_hdr->attr_mod));
status = FNOT_DONE;
goto done;
}
done:
// Free umad if allocated.
if (umad_p != NULL) {
umad_free(umad_p);
}
return status;
}
