psm2_error_t
ips_am_short_reply(psm2_am_token_t tok,
psm2_handler_t handler, psm2_amarg_t *args, int nargs,
void *src, size_t len, int flags,
psm2_am_completion_fn_t completion_fn, void *completion_ctxt)
{
struct ips_am_token *token = (struct ips_am_token *)tok;
struct ips_proto_am *proto_am = token->proto_am;
struct ips_epaddr *ipsaddr = token->epaddr_rail;
int pad_bytes = calculate_pad_bytes(len);
int scb_flags = 0;
ips_scb_t *scb;
if (!token->tok.can_reply) {
_HFI_ERROR("Invalid AM reply for request!");
return PSM2_AM_INVALID_REPLY;
}
psmi_assert(ips_scbctrl_avail(&proto_am->scbc_reply));
if ((nargs << 3) + len <= (IPS_AM_HDR_NARGS << 3)) {
scb = ips_scbctrl_alloc_tiny(&proto_am->scbc_reply);
} else {
int payload_sz = (nargs << 3);
payload_sz += (flags & PSM2_AM_FLAG_ASYNC) ?
0 : (len + pad_bytes);
scb_flags |= (payload_sz > (IPS_AM_HDR_NARGS << 3)) ?
IPS_SCB_FLAG_ADD_BUFFER : 0;
scb =
ips_scbctrl_alloc(&proto_am->scbc_reply, 1, payload_sz,
scb_flags);
}
psmi_assert_always(scb != NULL);
ips_am_scb_init(scb, handler, nargs, pad_bytes,
completion_fn, completion_ctxt);
am_short_reqrep(scb, ipsaddr, args, nargs, OPCODE_AM_REPLY,
src, len, flags, pad_bytes);
return PSM2_OK;
}
psm_error_t
__psm_ep_open_internal(psm_uuid_t const unique_job_key, int *devid_enabled,
struct psm_ep_open_opts const *opts_i, psm_mq_t mq,
psm_ep_t *epo, psm_epid_t *epido)
{
psm_ep_t ep = NULL;
uint32_t num_units;
size_t len;
psm_error_t err;
psm_epaddr_t epaddr = NULL;
char buf[128], *p, *e;
union psmi_envvar_val envvar_val;
size_t ptl_sizes;
struct psm_ep_open_opts opts;
ptl_t *amsh_ptl, *ips_ptl, *self_ptl;
int i;
/* First get the set of default options, we overwrite with the user's
* desired values afterwards */
if ((err = psm_ep_open_opts_get_defaults(&opts)))
goto fail;
if (opts_i != NULL) {
if (opts_i->timeout != -1)
opts.timeout = opts_i->timeout;
if (opts_i->unit != -1)
opts.unit = opts_i->unit;
if (opts_i->affinity != -1)
opts.affinity = opts_i->affinity;
if (opts_i->sendbufs_num != -1)
opts.sendbufs_num = opts_i->sendbufs_num;
if (opts_i->network_pkey != HFI_DEFAULT_P_KEY)
opts.network_pkey = opts_i->network_pkey;
if (opts_i->port != 0)
opts.port = opts_i->port;
if (opts_i->outsl != -1)
opts.outsl = opts_i->outsl;
if (opts_i->service_id)
opts.service_id = (uint64_t) opts_i->service_id;
if (opts_i->path_res_type != PSM_PATH_RES_NONE)
opts.path_res_type = opts_i->path_res_type;
if (opts_i->senddesc_num)
opts.senddesc_num = opts_i->senddesc_num;
if (opts_i->imm_size)
opts.imm_size = opts_i->imm_size;
}
/* Get Service ID from environment */
if (!psmi_getenv("PSM_IB_SERVICE_ID",
"HFI Service ID for path resolution",
PSMI_ENVVAR_LEVEL_USER,
PSMI_ENVVAR_TYPE_ULONG_ULONG,
(union psmi_envvar_val)HFI_DEFAULT_SERVICE_ID,
&envvar_val)) {
opts.service_id = (uint64_t) envvar_val.e_ulonglong;
}
/* Get Path resolution type from environment Possible choices are:
*
* NONE : Default same as previous instances. Utilizes static data.
* OPP : Use OFED Plus Plus library to do path record queries.
* UMAD : Use raw libibumad interface to form and process path records.
*/
if (!psmi_getenv("PSM_PATH_REC",
"Mechanism to query HFI path record (default is no path query)",
PSMI_ENVVAR_LEVEL_USER, PSMI_ENVVAR_TYPE_STR,
(union psmi_envvar_val)"none", &envvar_val)) {
if (!strcasecmp(envvar_val.e_str, "none"))
opts.path_res_type = PSM_PATH_RES_NONE;
else if (!strcasecmp(envvar_val.e_str, "opp"))
opts.path_res_type = PSM_PATH_RES_OPP;
else if (!strcasecmp(envvar_val.e_str, "umad"))
opts.path_res_type = PSM_PATH_RES_UMAD;
else {
_HFI_ERROR("Unknown path resolution type %s. "
"Disabling use of path record query.\n",
envvar_val.e_str);
opts.path_res_type = PSM_PATH_RES_NONE;
}
}
/* If a specific unit is set in the environment, use that one. */
if (!psmi_getenv("HFI_UNIT", "Device Unit number (-1 autodetects)",
PSMI_ENVVAR_LEVEL_USER, PSMI_ENVVAR_TYPE_LONG,
(union psmi_envvar_val)HFI_UNIT_ID_ANY, &envvar_val)) {
opts.unit = envvar_val.e_long;
}
/* Get user specified port number to use. */
if (!psmi_getenv("HFI_PORT", "IB Port number (0 autodetects)",
PSMI_ENVVAR_LEVEL_USER, PSMI_ENVVAR_TYPE_LONG,
(union psmi_envvar_val)HFI_PORT_NUM_ANY,
&envvar_val)) {
opts.port = envvar_val.e_long;
}
/* Get service level from environment, path-query overrides it */
if (!psmi_getenv
("HFI_SL", "HFI outging ServiceLevel number (default 0)",
PSMI_ENVVAR_LEVEL_USER, PSMI_ENVVAR_TYPE_LONG,
(union psmi_envvar_val)PSMI_SL_DEFAULT, &envvar_val)) {
opts.outsl = envvar_val.e_long;
}
/* Get network key from environment. MVAPICH and other vendor MPIs do not
* specify it on ep open and we may require it for vFabrics.
* path-query will override it.
*/
if (!psmi_getenv("PSM_PKEY",
"HFI PKey to use for endpoint",
PSMI_ENVVAR_LEVEL_USER,
PSMI_ENVVAR_TYPE_ULONG,
(union psmi_envvar_val)HFI_DEFAULT_P_KEY,
&envvar_val)) {
opts.network_pkey = (uint64_t) envvar_val.e_ulong;
}
/* BACKWARDS COMPATIBILITY: Open MPI likes to choose its own PKEY of
0x7FFF. That's no longer a valid default, so override it if the
client was compiled against PSM v1 */
if (PSMI_VERNO_GET_MAJOR(psmi_verno_client()) < 2 &&
opts.network_pkey == 0x7FFF) {
opts.network_pkey = HFI_DEFAULT_P_KEY;
}
/* Get number of default send buffers from environment */
if (!psmi_getenv("PSM_NUM_SEND_BUFFERS",
"Number of send buffers to allocate [1024]",
PSMI_ENVVAR_LEVEL_USER,
PSMI_ENVVAR_TYPE_UINT,
(union psmi_envvar_val)1024, &envvar_val)) {
opts.sendbufs_num = envvar_val.e_uint;
}
/* Get immediate data size - transfers less than immediate data size do
* not consume a send buffer and require just a send descriptor.
*/
if (!psmi_getenv("PSM_SEND_IMMEDIATE_SIZE",
"Immediate data send size not requiring a buffer [128]",
PSMI_ENVVAR_LEVEL_USER,
PSMI_ENVVAR_TYPE_UINT,
(union psmi_envvar_val)128, &envvar_val)) {
opts.imm_size = envvar_val.e_uint;
}
/* Get numner of send descriptors - by default this is 4 times the number
* of send buffers - mainly used for short/inlined messages.
*/
if (!psmi_getenv("PSM_NUM_SEND_DESCRIPTORS",
"Number of send descriptors to allocate [4096]",
PSMI_ENVVAR_LEVEL_USER,
PSMI_ENVVAR_TYPE_UINT,
(union psmi_envvar_val)4096, &envvar_val)) {
opts.senddesc_num = envvar_val.e_uint;
}
if (psmi_device_is_enabled(devid_enabled, PTL_DEVID_IPS)) {
if ((err = psm_ep_num_devunits(&num_units)) != PSM_OK)
goto fail;
} else
num_units = 0;
/* do some error checking */
if (opts.timeout < -1) {
err = psmi_handle_error(NULL, PSM_PARAM_ERR,
"Invalid timeout value %lld",
(long long)opts.timeout);
goto fail;
} else if (num_units && (opts.unit < -1 || opts.unit >= (int)num_units)) {
err = psmi_handle_error(NULL, PSM_PARAM_ERR,
"Invalid Device Unit ID %d (%d units found)",
opts.unit, num_units);
goto fail;
} else if (opts.port < 0 || opts.port > HFI_MAX_PORT) {
err = psmi_handle_error(NULL, PSM_PARAM_ERR,
"Invalid Device port number %d",
opts.port);
goto fail;
} else if (opts.affinity < 0
|| opts.affinity > PSM_EP_OPEN_AFFINITY_FORCE) {
err =
psmi_handle_error(NULL, PSM_PARAM_ERR,
"Invalid Affinity option: %d",
opts.affinity);
goto fail;
} else if (opts.outsl < PSMI_SL_MIN || opts.outsl > PSMI_SL_MAX) {
err = psmi_handle_error(NULL, PSM_PARAM_ERR,
"Invalid SL number: %lld",
(unsigned long long)opts.outsl);
goto fail;
}
/* Set environment variable if PSM is not allowed to set affinity */
if (opts.affinity == PSM_EP_OPEN_AFFINITY_SKIP)
setenv("HFI_NO_CPUAFFINITY", "1", 1);
/* Allocate end point structure storage */
ptl_sizes =
(psmi_device_is_enabled(devid_enabled, PTL_DEVID_SELF) ?
psmi_ptl_self.sizeof_ptl() : 0) +
(psmi_device_is_enabled(devid_enabled, PTL_DEVID_IPS) ?
psmi_ptl_ips.sizeof_ptl() : 0) +
(psmi_device_is_enabled(devid_enabled, PTL_DEVID_AMSH) ?
psmi_ptl_amsh.sizeof_ptl() : 0);
if (ptl_sizes == 0)
return PSM_EP_NO_DEVICE;
ep = (psm_ep_t) psmi_memalign(PSMI_EP_NONE, UNDEFINED, 64,
sizeof(struct psm_ep) + ptl_sizes);
epaddr = (psm_epaddr_t) psmi_calloc(PSMI_EP_NONE, PER_PEER_ENDPOINT,
1, sizeof(struct psm_epaddr));
if (ep == NULL || epaddr == NULL) {
err = psmi_handle_error(NULL, PSM_NO_MEMORY,
"Couldn't allocate memory for %s structure",
ep == NULL ? "psm_ep" : "psm_epaddr");
goto fail;
}
/* Copy PTL enabled status */
for (i = 0; i < PTL_MAX_INIT; i++)
ep->devid_enabled[i] = devid_enabled[i];
/* Matched Queue initialization. We do this early because we have to
* make sure ep->mq exists and is valid before calling ips_do_work.
*/
ep->mq = mq;
/* Get ready for PTL initialization */
memcpy(&ep->uuid, (void *)unique_job_key, sizeof(psm_uuid_t));
ep->epaddr = epaddr;
ep->memmode = mq->memmode;
ep->hfi_num_sendbufs = opts.sendbufs_num;
ep->service_id = opts.service_id;
ep->path_res_type = opts.path_res_type;
ep->hfi_num_descriptors = opts.senddesc_num;
ep->hfi_imm_size = opts.imm_size;
ep->errh = psmi_errhandler_global; /* by default use the global one */
ep->ptl_amsh.ep_poll = psmi_poll_noop;
ep->ptl_ips.ep_poll = psmi_poll_noop;
ep->connections = 0;
/* See how many iterations we want to spin before yielding */
psmi_getenv("PSM_YIELD_SPIN_COUNT",
"Spin poll iterations before yield",
PSMI_ENVVAR_LEVEL_HIDDEN,
PSMI_ENVVAR_TYPE_UINT,
(union psmi_envvar_val)PSMI_BLOCKUNTIL_POLLS_BEFORE_YIELD,
&envvar_val);
ep->yield_spin_cnt = envvar_val.e_uint;
ptl_sizes = 0;
amsh_ptl = ips_ptl = self_ptl = NULL;
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_AMSH)) {
amsh_ptl = (ptl_t *) (ep->ptl_base_data + ptl_sizes);
ptl_sizes += psmi_ptl_amsh.sizeof_ptl();
}
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_IPS)) {
ips_ptl = (ptl_t *) (ep->ptl_base_data + ptl_sizes);
ptl_sizes += psmi_ptl_ips.sizeof_ptl();
}
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_SELF)) {
self_ptl = (ptl_t *) (ep->ptl_base_data + ptl_sizes);
ptl_sizes += psmi_ptl_self.sizeof_ptl();
}
if ((err = psmi_ep_open_device(ep, &opts, unique_job_key,
&(ep->context), &ep->epid)))
goto fail;
psmi_assert_always(ep->epid != 0);
ep->epaddr->epid = ep->epid;
_HFI_VDBG("psmi_ep_open_device() passed\n");
/* Set our new label as soon as we know what it is */
strncpy(buf, psmi_gethostname(), sizeof(buf) - 1);
buf[sizeof(buf) - 1] = '\0';
p = buf + strlen(buf);
/* If our rank is set, use it. If not, use context.subcontext notation */
if (((e = getenv("MPI_RANKID")) != NULL && *e) ||
((e = getenv("PSC_MPI_RANK")) != NULL && *e))
len = snprintf(p, sizeof(buf) - strlen(buf), ":%d.", atoi(e));
else
len = snprintf(p, sizeof(buf) - strlen(buf), ":%d.%d.",
(uint32_t) psm_epid_context(ep->epid),
(uint32_t) psmi_epid_subcontext(ep->epid));
*(p + len) = '\0';
ep->context_mylabel = psmi_strdup(ep, buf);
if (ep->context_mylabel == NULL) {
err = PSM_NO_MEMORY;
goto fail;
}
/* hfi_set_mylabel(ep->context_mylabel); */
if ((err = psmi_epid_set_hostname(psm_epid_nid(ep->epid), buf, 0)))
goto fail;
_HFI_VDBG("start ptl device init...\n");
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_SELF)) {
if ((err = psmi_ptl_self.init(ep, self_ptl, &ep->ptl_self)))
goto fail;
}
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_IPS)) {
if ((err = psmi_ptl_ips.init(ep, ips_ptl, &ep->ptl_ips)))
goto fail;
}
/* If we're shm-only, this device is enabled above */
if (psmi_ep_device_is_enabled(ep, PTL_DEVID_AMSH)) {
if ((err = psmi_ptl_amsh.init(ep, amsh_ptl, &ep->ptl_amsh)))
goto fail;
} else {
/* We may have pre-attached as part of getting our rank for enabling
* shared contexts. */
}
_HFI_VDBG("finish ptl device init...\n");
/*
* Keep only IPS since only IPS support multi-rail, other devices
* are only setup once. IPS device can come to this function again.
*/
for (i = 0; i < PTL_MAX_INIT; i++) {
if (devid_enabled[i] != PTL_DEVID_IPS) {
devid_enabled[i] = -1;
}
}
*epido = ep->epid;
*epo = ep;
return PSM_OK;
fail:
if (ep != NULL) {
if (ep->context.fd != -1)
close(ep->context.fd);
psmi_free(ep);
}
if (epaddr != NULL)
psmi_free(epaddr);
return err;
}
