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smr_progress.c
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smr_progress.c
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/*
* Copyright (c) 2013-2020 Intel Corporation. All rights reserved
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>
#include "ofi_iov.h"
#include "ofi_hmem.h"
#include "ofi_atom.h"
#include "ofi_mb.h"
#include "ofi_mr.h"
#include "ofi_shm_p2p.h"
#include "smr.h"
#include "smr_dsa.h"
static inline void
smr_try_progress_to_sar(struct smr_ep *ep, struct smr_region *smr,
struct smr_freestack *sar_pool, struct smr_resp *resp,
struct smr_cmd *cmd, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *bytes_done, void *entry_ptr)
{
if (*bytes_done < cmd->msg.hdr.size) {
if (smr_env.use_dsa_sar && ofi_mr_all_host(mr, iov_count)) {
(void) smr_dsa_copy_to_sar(ep, sar_pool, resp, cmd, iov,
iov_count, bytes_done, entry_ptr);
return;
} else {
smr_copy_to_sar(sar_pool, resp, cmd, mr, iov, iov_count,
bytes_done);
}
}
}
static inline void
smr_try_progress_from_sar(struct smr_ep *ep, struct smr_region *smr,
struct smr_freestack *sar_pool, struct smr_resp *resp,
struct smr_cmd *cmd, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *bytes_done, void *entry_ptr)
{
if (*bytes_done < cmd->msg.hdr.size) {
if (smr_env.use_dsa_sar && ofi_mr_all_host(mr, iov_count)) {
(void) smr_dsa_copy_from_sar(ep, sar_pool, resp, cmd,
iov, iov_count, bytes_done, entry_ptr);
return;
} else {
smr_copy_from_sar(sar_pool, resp, cmd, mr,
iov, iov_count, bytes_done);
}
}
}
static int smr_progress_resp_entry(struct smr_ep *ep, struct smr_resp *resp,
struct smr_tx_entry *pending, uint64_t *err)
{
int i;
struct smr_region *peer_smr;
size_t inj_offset;
struct smr_inject_buf *tx_buf = NULL;
struct smr_sar_buf *sar_buf = NULL;
uint8_t *src;
ssize_t hmem_copy_ret;
peer_smr = smr_peer_region(ep->region, pending->peer_id);
switch (pending->cmd.msg.hdr.op_src) {
case smr_src_iov:
break;
case smr_src_ipc:
assert(pending->mr[0]);
break;
case smr_src_sar:
sar_buf = smr_freestack_get_entry_from_index(
smr_sar_pool(peer_smr), pending->cmd.msg.data.sar[0]);
if (pending->bytes_done == pending->cmd.msg.hdr.size &&
(resp->status == SMR_STATUS_SAR_EMPTY ||
resp->status == SMR_STATUS_SUCCESS)) {
resp->status = SMR_STATUS_SUCCESS;
break;
}
if (pending->cmd.msg.hdr.op == ofi_op_read_req)
smr_try_progress_from_sar(ep, peer_smr,
smr_sar_pool(peer_smr), resp,
&pending->cmd, pending->mr, pending->iov,
pending->iov_count, &pending->bytes_done,
pending);
else
smr_try_progress_to_sar(ep, peer_smr,
smr_sar_pool(peer_smr), resp,
&pending->cmd, pending->mr, pending->iov,
pending->iov_count, &pending->bytes_done,
pending);
if (pending->bytes_done != pending->cmd.msg.hdr.size ||
resp->status != SMR_STATUS_SAR_EMPTY) {
return -FI_EAGAIN;
}
resp->status = SMR_STATUS_SUCCESS;
break;
case smr_src_mmap:
if (!pending->map_name)
break;
if (pending->cmd.msg.hdr.op == ofi_op_read_req) {
if (!*err) {
hmem_copy_ret =
ofi_copy_to_mr_iov(pending->mr,
pending->iov,
pending->iov_count,
0, pending->map_ptr,
pending->cmd.msg.hdr.size);
if (hmem_copy_ret < 0) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Copy from mmapped file failed with code %d\n",
(int)(-hmem_copy_ret));
*err = hmem_copy_ret;
} else if (hmem_copy_ret != pending->cmd.msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Incomplete copy from mmapped file\n");
*err = -FI_ETRUNC;
} else {
pending->bytes_done = (size_t) hmem_copy_ret;
}
}
munmap(pending->map_ptr, pending->cmd.msg.hdr.size);
}
shm_unlink(pending->map_name->name);
dlist_remove(&pending->map_name->entry);
free(pending->map_name);
pending->map_name = NULL;
break;
case smr_src_inject:
inj_offset = (size_t) pending->cmd.msg.hdr.src_data;
tx_buf = smr_get_ptr(peer_smr, inj_offset);
if (*err || pending->bytes_done == pending->cmd.msg.hdr.size ||
pending->cmd.msg.hdr.op == ofi_op_atomic)
break;
src = pending->cmd.msg.hdr.op == ofi_op_atomic_compare ?
tx_buf->buf : tx_buf->data;
hmem_copy_ret = ofi_copy_to_mr_iov(pending->mr,
pending->iov, pending->iov_count,
0, src, pending->cmd.msg.hdr.size);
if (hmem_copy_ret < 0) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"RMA read/fetch failed with code %d\n",
(int)(-hmem_copy_ret));
*err = hmem_copy_ret;
} else if (hmem_copy_ret != pending->cmd.msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Incomplete rma read/fetch buffer copied\n");
*err = -FI_ETRUNC;
} else {
pending->bytes_done = (size_t) hmem_copy_ret;
}
break;
default:
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"unidentified operation type\n");
}
if (tx_buf) {
smr_release_txbuf(peer_smr, tx_buf);
} else if (sar_buf) {
pthread_spin_lock(&peer_smr->lock);
for (i = pending->cmd.msg.data.buf_batch_size - 1; i >= 0; i--) {
smr_freestack_push_by_index(smr_sar_pool(peer_smr),
pending->cmd.msg.data.sar[i]);
}
pthread_spin_unlock(&peer_smr->lock);
smr_peer_data(ep->region)[pending->peer_id].sar_status = 0;
}
return FI_SUCCESS;
}
static void smr_progress_resp(struct smr_ep *ep)
{
struct smr_resp *resp;
struct smr_tx_entry *pending;
int ret;
ofi_genlock_lock(&ep->util_ep.lock);
while (!ofi_cirque_isempty(smr_resp_queue(ep->region))) {
resp = ofi_cirque_head(smr_resp_queue(ep->region));
if (resp->status == SMR_STATUS_BUSY)
break;
pending = (struct smr_tx_entry *) resp->msg_id;
if (smr_progress_resp_entry(ep, resp, pending, &resp->status))
break;
if (resp->status) {
ret = smr_write_err_comp(ep->util_ep.tx_cq, pending->context,
pending->op_flags, pending->cmd.msg.hdr.tag,
resp->status);
} else {
ret = smr_complete_tx(ep, pending->context,
pending->cmd.msg.hdr.op, pending->op_flags);
}
if (ret) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"unable to process tx completion\n");
break;
}
ofi_freestack_push(ep->tx_fs, pending);
ofi_cirque_discard(smr_resp_queue(ep->region));
}
ofi_genlock_unlock(&ep->util_ep.lock);
}
static int smr_progress_inline(struct smr_cmd *cmd, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *total_len)
{
ssize_t hmem_copy_ret;
hmem_copy_ret = ofi_copy_to_mr_iov(mr, iov, iov_count, 0,
cmd->msg.data.msg, cmd->msg.hdr.size);
if (hmem_copy_ret < 0) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"inline recv failed with code %d\n",
(int)(-hmem_copy_ret));
return hmem_copy_ret;
} else if (hmem_copy_ret != cmd->msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"inline recv truncated\n");
return -FI_ETRUNC;
}
*total_len = hmem_copy_ret;
return FI_SUCCESS;
}
static int smr_progress_inject(struct smr_cmd *cmd, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *total_len, struct smr_ep *ep, int err)
{
struct smr_inject_buf *tx_buf;
size_t inj_offset;
ssize_t hmem_copy_ret;
assert(cmd->msg.hdr.op != ofi_op_read_req);
inj_offset = (size_t) cmd->msg.hdr.src_data;
tx_buf = smr_get_ptr(ep->region, inj_offset);
if (err) {
smr_release_txbuf(ep->region, tx_buf);
return err;
}
hmem_copy_ret = ofi_copy_to_mr_iov(mr, iov, iov_count, 0, tx_buf->data,
cmd->msg.hdr.size);
smr_release_txbuf(ep->region, tx_buf);
if (hmem_copy_ret < 0) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"inject recv failed with code %d\n",
(int)(-hmem_copy_ret));
return hmem_copy_ret;
} else if (hmem_copy_ret != cmd->msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"inject recv truncated\n");
return -FI_ETRUNC;
}
*total_len = hmem_copy_ret;
return FI_SUCCESS;
}
static int smr_progress_iov(struct smr_cmd *cmd, struct iovec *iov,
size_t iov_count, size_t *total_len,
struct smr_ep *ep, int err)
{
struct smr_region *peer_smr;
struct xpmem_client *xpmem;
struct smr_resp *resp;
int ret;
peer_smr = smr_peer_region(ep->region, cmd->msg.hdr.id);
resp = smr_get_ptr(peer_smr, cmd->msg.hdr.src_data);
if (err) {
ret = -err;
goto out;
}
xpmem = &smr_peer_data(ep->region)[cmd->msg.hdr.id].xpmem;
ret = ofi_shm_p2p_copy(ep->p2p_type, iov, iov_count, cmd->msg.data.iov,
cmd->msg.data.iov_count, cmd->msg.hdr.size,
peer_smr->pid, cmd->msg.hdr.op == ofi_op_read_req,
xpmem);
if (!ret)
*total_len = cmd->msg.hdr.size;
out:
//Status must be set last (signals peer: op done, valid resp entry)
resp->status = -ret;
return -ret;
}
static int smr_mmap_peer_copy(struct smr_ep *ep, struct smr_cmd *cmd,
struct ofi_mr **mr, struct iovec *iov,
size_t iov_count, size_t *total_len)
{
char shm_name[SMR_NAME_MAX];
void *mapped_ptr;
int fd, num;
int ret = 0;
ssize_t hmem_copy_ret;
num = smr_mmap_name(shm_name,
ep->region->map->peers[cmd->msg.hdr.id].peer.name,
cmd->msg.hdr.msg_id);
if (num < 0) {
FI_WARN(&smr_prov, FI_LOG_AV, "generating shm file name failed\n");
return -errno;
}
fd = shm_open(shm_name, O_RDWR, S_IRUSR | S_IWUSR);
if (fd < 0) {
FI_WARN(&smr_prov, FI_LOG_AV, "shm_open error\n");
return -errno;
}
mapped_ptr = mmap(NULL, cmd->msg.hdr.size, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (mapped_ptr == MAP_FAILED) {
FI_WARN(&smr_prov, FI_LOG_AV, "mmap error %s\n", strerror(errno));
ret = -errno;
goto unlink_close;
}
if (cmd->msg.hdr.op == ofi_op_read_req) {
hmem_copy_ret = ofi_copy_from_mr_iov(mapped_ptr,
cmd->msg.hdr.size, mr, iov,
iov_count, 0);
} else {
hmem_copy_ret = ofi_copy_to_mr_iov(mr, iov, iov_count, 0,
mapped_ptr, cmd->msg.hdr.size);
}
if (hmem_copy_ret < 0) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"mmap copy iov failed with code %d\n",
(int)(-hmem_copy_ret));
ret = hmem_copy_ret;
} else if (hmem_copy_ret != cmd->msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"mmap copy iov truncated\n");
ret = -FI_ETRUNC;
}
*total_len = hmem_copy_ret;
munmap(mapped_ptr, cmd->msg.hdr.size);
unlink_close:
shm_unlink(shm_name);
close(fd);
return ret;
}
static int smr_progress_mmap(struct smr_cmd *cmd, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *total_len, struct smr_ep *ep)
{
struct smr_region *peer_smr;
struct smr_resp *resp;
int ret;
peer_smr = smr_peer_region(ep->region, cmd->msg.hdr.id);
resp = smr_get_ptr(peer_smr, cmd->msg.hdr.src_data);
ret = smr_mmap_peer_copy(ep, cmd, mr, iov, iov_count, total_len);
//Status must be set last (signals peer: op done, valid resp entry)
resp->status = -ret;
return -ret;
}
static struct smr_pend_entry *smr_progress_sar(struct smr_cmd *cmd,
struct fi_peer_rx_entry *rx_entry, struct ofi_mr **mr,
struct iovec *iov, size_t iov_count,
size_t *total_len, struct smr_ep *ep)
{
struct smr_region *peer_smr;
struct smr_pend_entry *sar_entry;
struct smr_resp *resp;
struct iovec sar_iov[SMR_IOV_LIMIT];
peer_smr = smr_peer_region(ep->region, cmd->msg.hdr.id);
resp = smr_get_ptr(peer_smr, cmd->msg.hdr.src_data);
/* Nothing to do for 0 byte transfer */
if (!cmd->msg.hdr.size) {
resp->status = SMR_STATUS_SUCCESS;
return NULL;
}
memcpy(sar_iov, iov, sizeof(*iov) * iov_count);
(void) ofi_truncate_iov(sar_iov, &iov_count, cmd->msg.hdr.size);
sar_entry = ofi_buf_alloc(ep->pend_buf_pool);
dlist_insert_tail(&sar_entry->entry, &ep->sar_list);
if (cmd->msg.hdr.op == ofi_op_read_req)
smr_try_progress_to_sar(ep, peer_smr, smr_sar_pool(ep->region),
resp, cmd, mr, sar_iov, iov_count,
total_len, sar_entry);
else
smr_try_progress_from_sar(ep, peer_smr,
smr_sar_pool(ep->region), resp, cmd, mr,
sar_iov, iov_count, total_len, sar_entry);
if (*total_len == cmd->msg.hdr.size) {
dlist_remove(&sar_entry->entry);
ofi_buf_free(sar_entry);
return NULL;
}
sar_entry->cmd = *cmd;
sar_entry->cmd_ctx = NULL;
sar_entry->bytes_done = *total_len;
memcpy(sar_entry->iov, sar_iov, sizeof(*sar_iov) * iov_count);
sar_entry->iov_count = iov_count;
sar_entry->rx_entry = rx_entry ? rx_entry : NULL;
if (mr)
memcpy(sar_entry->mr, mr, sizeof(*mr) * iov_count);
else
memset(sar_entry->mr, 0, sizeof(*mr) * iov_count);
*total_len = cmd->msg.hdr.size;
return sar_entry;
}
static int
smr_ipc_async_copy(struct smr_ep *ep, void *ptr,
struct fi_peer_rx_entry *rx_entry,
struct iovec *iov, size_t iov_count,
struct ofi_mr_entry *mr_entry, struct smr_cmd *cmd,
struct smr_pend_entry **pend)
{
struct smr_pend_entry *ipc_entry;
enum fi_hmem_iface iface = cmd->msg.data.ipc_info.iface;
uint64_t device = cmd->msg.data.ipc_info.device;
int ret;
ipc_entry = ofi_buf_alloc(ep->pend_buf_pool);
if (!ipc_entry)
return -FI_ENOMEM;
ipc_entry->cmd = *cmd;
ipc_entry->ipc_entry = mr_entry;
ipc_entry->bytes_done = 0;
memcpy(ipc_entry->iov, iov, sizeof(*iov) * iov_count);
ipc_entry->iov_count = iov_count;
ipc_entry->rx_entry = rx_entry;
if (rx_entry) {
ipc_entry->rx_entry->flags |= cmd->msg.hdr.op_flags;
ipc_entry->rx_entry->flags &= ~SMR_MULTI_RECV;
}
ret = ofi_create_async_copy_event(iface, device,
&ipc_entry->async_event);
if (ret < 0)
goto fail;
if (cmd->msg.hdr.op == ofi_op_read_req) {
ret = ofi_async_copy_from_hmem_iov(ptr, cmd->msg.hdr.size,
iface, device, iov, iov_count, 0,
ipc_entry->async_event);
} else {
ret = ofi_async_copy_to_hmem_iov(iface, device, iov, iov_count, 0,
ptr, cmd->msg.hdr.size,
ipc_entry->async_event);
}
if (ret < 0)
goto fail;
dlist_insert_tail(&ipc_entry->entry, &ep->ipc_cpy_pend_list);
*pend = ipc_entry;
return FI_SUCCESS;
fail:
ofi_buf_free(ipc_entry);
return ret;
}
static struct smr_pend_entry *smr_progress_ipc(struct smr_cmd *cmd,
struct fi_peer_rx_entry *rx_entry,
struct ofi_mr **mr, struct iovec *iov,
size_t iov_count, size_t *total_len,
struct smr_ep *ep, int *err)
{
struct smr_region *peer_smr;
struct smr_resp *resp;
void *base, *ptr;
int64_t id;
int ret, ipc_fd;
ssize_t hmem_copy_ret;
struct ofi_mr_entry *mr_entry;
struct smr_domain *domain;
struct smr_pend_entry *ipc_entry;
domain = container_of(ep->util_ep.domain, struct smr_domain,
util_domain);
peer_smr = smr_peer_region(ep->region, cmd->msg.hdr.id);
resp = smr_get_ptr(peer_smr, cmd->msg.hdr.src_data);
//TODO disable IPC if more than 1 interface is initialized
if (cmd->msg.data.ipc_info.iface == FI_HMEM_ZE) {
id = cmd->msg.hdr.id;
ret = ze_hmem_open_shared_handle(cmd->msg.data.ipc_info.device,
ep->sock_info->peers[id].device_fds,
(void **) &cmd->msg.data.ipc_info.ipc_handle,
&ipc_fd, &base);
} else {
ret = ofi_ipc_cache_search(domain->ipc_cache,
cmd->msg.hdr.id,
&cmd->msg.data.ipc_info,
&mr_entry);
}
if (ret)
goto out;
if (cmd->msg.data.ipc_info.iface == FI_HMEM_ZE)
ptr = (char *) base + (uintptr_t) cmd->msg.data.ipc_info.offset;
else
ptr = (char *) (uintptr_t) mr_entry->info.mapped_addr +
(uintptr_t) cmd->msg.data.ipc_info.offset;
if (cmd->msg.data.ipc_info.iface == FI_HMEM_ROCR) {
*total_len = 0;
ipc_entry = NULL;
resp->status = SMR_STATUS_BUSY;
ret = smr_ipc_async_copy(ep, (char*)ptr, rx_entry, iov,
iov_count, mr_entry, cmd,
&ipc_entry);
if (ret)
resp->status = -ret;
return ipc_entry;
}
if (cmd->msg.hdr.op == ofi_op_read_req) {
hmem_copy_ret = ofi_copy_from_hmem_iov(ptr, cmd->msg.hdr.size,
cmd->msg.data.ipc_info.iface,
cmd->msg.data.ipc_info.device, iov,
iov_count, 0);
} else {
hmem_copy_ret = ofi_copy_to_hmem_iov(cmd->msg.data.ipc_info.iface,
cmd->msg.data.ipc_info.device, iov,
iov_count, 0, ptr, cmd->msg.hdr.size);
}
if (cmd->msg.data.ipc_info.iface == FI_HMEM_ZE) {
close(ipc_fd);
/* Truncation error takes precedence over close_handle error */
ret = ofi_hmem_close_handle(cmd->msg.data.ipc_info.iface, base);
} else {
ofi_mr_cache_delete(domain->ipc_cache, mr_entry);
}
if (hmem_copy_ret < 0)
*err = hmem_copy_ret;
else if (hmem_copy_ret != cmd->msg.hdr.size)
*err = -FI_ETRUNC;
else
*err = ret;
*total_len = hmem_copy_ret;
out:
//Status must be set last (signals peer: op done, valid resp entry)
resp->status = -ret;
return NULL;
}
static void smr_do_atomic(void *src, struct ofi_mr *dst_mr, void *dst,
void *cmp, enum fi_datatype datatype, enum fi_op op,
size_t cnt, uint16_t flags)
{
char tmp_result[SMR_INJECT_SIZE];
char tmp_dst[SMR_INJECT_SIZE];
char *cpy_dst;
int ret;
if (dst_mr && dst_mr->iface != FI_HMEM_SYSTEM) {
ret = ofi_copy_to_hmem(dst_mr->iface, dst_mr->device, tmp_dst,
dst, cnt * ofi_datatype_size(datatype));
if (ret)
FI_WARN(&smr_prov, FI_LOG_EP_DATA,
"Error copying from device to host buffer\n");
cpy_dst = tmp_dst;
} else {
cpy_dst = dst;
}
if (ofi_atomic_isswap_op(op)) {
ofi_atomic_swap_handler(op, datatype, cpy_dst, src, cmp,
tmp_result, cnt);
} else if (flags & SMR_RMA_REQ && ofi_atomic_isreadwrite_op(op)) {
ofi_atomic_readwrite_handler(op, datatype, cpy_dst, src,
tmp_result, cnt);
} else if (ofi_atomic_iswrite_op(op)) {
ofi_atomic_write_handler(op, datatype, cpy_dst, src, cnt);
} else {
FI_WARN(&smr_prov, FI_LOG_EP_DATA,
"invalid atomic operation\n");
}
if (flags & SMR_RMA_REQ)
memcpy(src, op == FI_ATOMIC_READ ? cpy_dst : tmp_result,
cnt * ofi_datatype_size(datatype));
if (cpy_dst != dst) {
ret = ofi_copy_to_hmem(dst_mr->iface, dst_mr->device, dst,
cpy_dst, cnt * ofi_datatype_size(datatype));
if (ret)
FI_WARN(&smr_prov, FI_LOG_EP_DATA,
"Error copying result to device buffer\n");
}
}
static int smr_progress_inline_atomic(struct smr_cmd *cmd, struct ofi_mr **mr,
struct fi_ioc *ioc, size_t ioc_count, size_t *len)
{
int i;
uint8_t *src = cmd->msg.data.msg;
assert(cmd->msg.hdr.op == ofi_op_atomic);
for (i = *len = 0; i < ioc_count && *len < cmd->msg.hdr.size; i++) {
smr_do_atomic(&src[*len], mr[i], ioc[i].addr, NULL,
cmd->msg.hdr.datatype, cmd->msg.hdr.atomic_op,
ioc[i].count, cmd->msg.hdr.op_flags);
*len += ioc[i].count * ofi_datatype_size(cmd->msg.hdr.datatype);
}
if (*len != cmd->msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"recv truncated");
return -FI_ETRUNC;
}
return FI_SUCCESS;
}
static int smr_progress_inject_atomic(struct smr_cmd *cmd, struct ofi_mr **mr,
struct fi_ioc *ioc, size_t ioc_count, size_t *len,
struct smr_ep *ep, int err)
{
struct smr_inject_buf *tx_buf;
size_t inj_offset;
uint8_t *src, *comp;
int i;
inj_offset = (size_t) cmd->msg.hdr.src_data;
tx_buf = smr_get_ptr(ep->region, inj_offset);
if (err)
goto out;
switch (cmd->msg.hdr.op) {
case ofi_op_atomic_compare:
src = tx_buf->buf;
comp = tx_buf->comp;
break;
default:
src = tx_buf->data;
comp = NULL;
break;
}
for (i = *len = 0; i < ioc_count && *len < cmd->msg.hdr.size; i++) {
smr_do_atomic(&src[*len], mr[i], ioc[i].addr,
comp ? &comp[*len] : NULL, cmd->msg.hdr.datatype,
cmd->msg.hdr.atomic_op, ioc[i].count,
cmd->msg.hdr.op_flags);
*len += ioc[i].count * ofi_datatype_size(cmd->msg.hdr.datatype);
}
if (*len != cmd->msg.hdr.size) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"recv truncated");
err = -FI_ETRUNC;
}
out:
if (!(cmd->msg.hdr.op_flags & SMR_RMA_REQ))
smr_release_txbuf(ep->region, tx_buf);
return err;
}
static int smr_start_common(struct smr_ep *ep, struct smr_cmd *cmd,
struct fi_peer_rx_entry *rx_entry)
{
struct smr_pend_entry *pend = NULL;
size_t total_len = 0;
uint64_t comp_flags;
void *comp_buf;
int ret;
uint64_t err = 0;
switch (cmd->msg.hdr.op_src) {
case smr_src_inline:
err = smr_progress_inline(cmd,
(struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count, &total_len);
break;
case smr_src_inject:
err = smr_progress_inject(cmd,
(struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count, &total_len,
ep, 0);
break;
case smr_src_iov:
err = smr_progress_iov(cmd, rx_entry->iov, rx_entry->count,
&total_len, ep, 0);
break;
case smr_src_mmap:
err = smr_progress_mmap(cmd, (struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count,
&total_len, ep);
break;
case smr_src_sar:
pend = smr_progress_sar(cmd, rx_entry,
(struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count,
&total_len, ep);
break;
case smr_src_ipc:
pend = smr_progress_ipc(cmd, rx_entry,
(struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count,
&total_len, ep, (int*)&err);
break;
default:
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"unidentified operation type\n");
err = -FI_EINVAL;
}
if (!pend) {
comp_buf = rx_entry->iov[0].iov_base;
comp_flags = smr_rx_cq_flags(cmd->msg.hdr.op, rx_entry->flags,
cmd->msg.hdr.op_flags);
if (err) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"error processing op\n");
ret = smr_write_err_comp(ep->util_ep.rx_cq,
rx_entry->context,
comp_flags, rx_entry->tag,
err);
} else {
ret = smr_complete_rx(ep, rx_entry->context, cmd->msg.hdr.op,
comp_flags, total_len, comp_buf,
cmd->msg.hdr.id, cmd->msg.hdr.tag,
cmd->msg.hdr.data);
}
if (ret) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"unable to process rx completion\n");
}
smr_get_peer_srx(ep)->owner_ops->free_entry(rx_entry);
}
return 0;
}
static int smr_copy_saved(struct smr_cmd_ctx *cmd_ctx,
struct fi_peer_rx_entry *rx_entry)
{
struct smr_unexp_buf *sar_buf;
size_t bytes = 0;
uint64_t comp_flags;
int ret;
while (!slist_empty(&cmd_ctx->buf_list)) {
slist_remove_head_container(&cmd_ctx->buf_list,
struct smr_unexp_buf, sar_buf, entry);
bytes += ofi_copy_to_mr_iov((struct ofi_mr **) rx_entry->desc,
rx_entry->iov, rx_entry->count, bytes,
sar_buf->buf,
MIN(cmd_ctx->cmd.msg.hdr.size - bytes,
SMR_SAR_SIZE));
ofi_buf_free(sar_buf);
}
if (bytes != cmd_ctx->cmd.msg.hdr.size) {
assert(cmd_ctx->sar_entry);
cmd_ctx->sar_entry->cmd_ctx = NULL;
cmd_ctx->sar_entry->rx_entry = rx_entry;
memcpy(cmd_ctx->sar_entry->iov, rx_entry->iov,
sizeof(*rx_entry->iov) * rx_entry->count);
cmd_ctx->sar_entry->iov_count = rx_entry->count;
(void) ofi_truncate_iov(cmd_ctx->sar_entry->iov,
&cmd_ctx->sar_entry->iov_count,
cmd_ctx->cmd.msg.hdr.size);
memcpy(cmd_ctx->sar_entry->mr, rx_entry->desc,
sizeof(*rx_entry->desc) * cmd_ctx->sar_entry->iov_count);
return FI_SUCCESS;
}
assert(!cmd_ctx->sar_entry);
comp_flags = smr_rx_cq_flags(cmd_ctx->cmd.msg.hdr.op,
rx_entry->flags, cmd_ctx->cmd.msg.hdr.op_flags);
ret = smr_complete_rx(cmd_ctx->ep, rx_entry->context,
cmd_ctx->cmd.msg.hdr.op, comp_flags,
bytes, rx_entry->iov[0].iov_base,
cmd_ctx->cmd.msg.hdr.id,
cmd_ctx->cmd.msg.hdr.tag,
cmd_ctx->cmd.msg.hdr.data);
if (ret) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"unable to process rx completion\n");
return ret;
}
smr_get_peer_srx(cmd_ctx->ep)->owner_ops->free_entry(rx_entry);
return FI_SUCCESS;
}
int smr_unexp_start(struct fi_peer_rx_entry *rx_entry)
{
struct smr_cmd_ctx *cmd_ctx = rx_entry->peer_context;
int ret;
if (cmd_ctx->cmd.msg.hdr.op_src == smr_src_sar ||
cmd_ctx->cmd.msg.hdr.op_src == smr_src_inject)
ret = smr_copy_saved(cmd_ctx, rx_entry);
else
ret = smr_start_common(cmd_ctx->ep, &cmd_ctx->cmd, rx_entry);
ofi_buf_free(cmd_ctx);
return ret;
}
static void smr_progress_connreq(struct smr_ep *ep, struct smr_cmd *cmd)
{
struct smr_region *peer_smr;
struct smr_inject_buf *tx_buf;
size_t inj_offset;
int64_t idx = -1;
int ret = 0;
inj_offset = (size_t) cmd->msg.hdr.src_data;
tx_buf = smr_get_ptr(ep->region, inj_offset);
ret = smr_map_add(&smr_prov, ep->region->map,
(char *) tx_buf->data, &idx);
if (ret)
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Error processing mapping request\n");
peer_smr = smr_peer_region(ep->region, idx);
if (peer_smr->pid != (int) cmd->msg.hdr.data) {
//TODO track and update/complete in error any transfers
//to or from old mapping
munmap(peer_smr, peer_smr->total_size);
smr_map_to_region(&smr_prov, ep->region->map, idx);
peer_smr = smr_peer_region(ep->region, idx);
}
smr_peer_data(peer_smr)[cmd->msg.hdr.id].addr.id = idx;
smr_peer_data(ep->region)[idx].addr.id = cmd->msg.hdr.id;
smr_release_txbuf(ep->region, tx_buf);
assert(ep->region->map->num_peers > 0);
ep->region->max_sar_buf_per_peer = SMR_MAX_PEERS /
ep->region->map->num_peers;
}
static int smr_alloc_cmd_ctx(struct smr_ep *ep,
struct fi_peer_rx_entry *rx_entry, struct smr_cmd *cmd)
{
struct smr_cmd_ctx *cmd_ctx;
struct smr_pend_entry *sar_entry;
struct smr_inject_buf *tx_buf;
struct smr_unexp_buf *buf;
cmd_ctx = ofi_buf_alloc(ep->cmd_ctx_pool);
if (!cmd_ctx) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Error allocating cmd ctx\n");
return -FI_ENOMEM;
}
cmd_ctx->ep = ep;
rx_entry->size = cmd->msg.hdr.size;
if (cmd->msg.hdr.op_flags & SMR_REMOTE_CQ_DATA) {
rx_entry->flags |= FI_REMOTE_CQ_DATA;
rx_entry->cq_data = cmd->msg.hdr.data;
}
if (cmd->msg.hdr.op_src == smr_src_inline) {
memcpy(&cmd_ctx->cmd, cmd, sizeof(cmd->msg.hdr) + cmd->msg.hdr.size);
} else if (cmd->msg.hdr.op_src == smr_src_inject) {
memcpy(&cmd_ctx->cmd, cmd, sizeof(cmd->msg.hdr));
buf = ofi_buf_alloc(ep->unexp_buf_pool);
if (!buf) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Error allocating buffer\n");
ofi_buf_free(cmd_ctx);
return -FI_ENOMEM;
}
cmd_ctx->sar_entry = NULL;
slist_init(&cmd_ctx->buf_list);
slist_insert_tail(&buf->entry, &cmd_ctx->buf_list);
tx_buf = smr_get_ptr(ep->region, (size_t) cmd->msg.hdr.src_data);
memcpy(buf->buf, tx_buf->buf, cmd->msg.hdr.size);
smr_release_txbuf(ep->region, tx_buf);
} else if (cmd->msg.hdr.op_src == smr_src_sar) {
memcpy(&cmd_ctx->cmd, cmd, sizeof(*cmd));
slist_init(&cmd_ctx->buf_list);
if (cmd->msg.hdr.size) {
sar_entry = ofi_buf_alloc(ep->pend_buf_pool);
if (!sar_entry) {
FI_WARN(&smr_prov, FI_LOG_EP_CTRL,
"Error allocating sar entry\n");
ofi_buf_free(cmd_ctx);
return -FI_ENOMEM;
}
memcpy(&sar_entry->cmd, cmd, sizeof(*cmd));
sar_entry->cmd_ctx = cmd_ctx;
sar_entry->bytes_done = 0;
sar_entry->rx_entry = rx_entry;
dlist_insert_tail(&sar_entry->entry, &ep->sar_list);
cmd_ctx->sar_entry = sar_entry;
}
} else {
memcpy(&cmd_ctx->cmd, cmd, sizeof(*cmd));
}
rx_entry->peer_context = cmd_ctx;
return FI_SUCCESS;
}
static int smr_progress_cmd_msg(struct smr_ep *ep, struct smr_cmd *cmd)
{
struct fid_peer_srx *peer_srx = smr_get_peer_srx(ep);
struct fi_peer_rx_entry *rx_entry;
fi_addr_t addr;
int ret;
addr = ep->region->map->peers[cmd->msg.hdr.id].fiaddr;
if (cmd->msg.hdr.op == ofi_op_tagged) {
ret = peer_srx->owner_ops->get_tag(peer_srx, addr,
cmd->msg.hdr.tag, &rx_entry);
if (ret == -FI_ENOENT) {
ret = smr_alloc_cmd_ctx(ep, rx_entry, cmd);
if (ret) {
peer_srx->owner_ops->free_entry(rx_entry);