/**
* Copyright (C) Mellanox Technologies Ltd. 2001-2019. ALL RIGHTS RESERVED.
* Copyright (C) UT-Battelle, LLC. 2015. ALL RIGHTS RESERVED.
*
* See file LICENSE for terms.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "rc_verbs.h"
#include "rc_verbs_impl.h"
#include <ucs/arch/bitops.h>
#include <uct/ib/base/ib_log.h>
void uct_rc_verbs_txcnt_init(uct_rc_verbs_txcnt_t *txcnt)
{
txcnt->pi = txcnt->ci = 0;
}
static UCS_F_ALWAYS_INLINE void
uct_rc_verbs_ep_post_send(uct_rc_verbs_iface_t* iface, uct_rc_verbs_ep_t* ep,
struct ibv_send_wr *wr, int send_flags, int max_log_sge)
{
struct ibv_send_wr *bad_wr;
int ret;
ucs_assertv(ep->qp->state == IBV_QPS_RTS, "QP 0x%x state is %d",
ep->qp->qp_num, ep->qp->state);
if (!(send_flags & IBV_SEND_SIGNALED)) {
send_flags |= uct_rc_iface_tx_moderation(&iface->super, &ep->super.txqp,
IBV_SEND_SIGNALED);
}
if (wr->opcode == IBV_WR_RDMA_READ) {
send_flags |= uct_rc_ep_fm(&iface->super, &ep->fi, IBV_SEND_FENCE);
}
wr->send_flags = send_flags;
wr->wr_id = uct_rc_txqp_unsignaled(&ep->super.txqp);
uct_ib_log_post_send(&iface->super.super, ep->qp, wr, max_log_sge,
(wr->opcode == IBV_WR_SEND) ? uct_rc_ep_packet_dump : NULL);
ret = ibv_post_send(ep->qp, wr, &bad_wr);
if (ret != 0) {
ucs_fatal("ibv_post_send() returned %d (%m)", ret);
}
uct_rc_verbs_txqp_posted(&ep->super.txqp, &ep->txcnt, &iface->super, send_flags & IBV_SEND_SIGNALED);
}
/*
* Helper function for posting sends with a descriptor.
* User needs to fill: wr.opcode, wr.sg_list, wr.num_sge, first sge length, and
* operation-specific fields (e.g rdma).
*/
static UCS_F_ALWAYS_INLINE void
uct_rc_verbs_ep_post_send_desc(uct_rc_verbs_ep_t* ep, struct ibv_send_wr *wr,
uct_rc_iface_send_desc_t *desc, int send_flags,
int max_log_sge)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(ep->super.super.super.iface,
uct_rc_verbs_iface_t);
UCT_RC_VERBS_FILL_DESC_WR(wr, desc);
uct_rc_verbs_ep_post_send(iface, ep, wr, send_flags, max_log_sge);
uct_rc_txqp_add_send_op_sn(&ep->super.txqp, &desc->super, ep->txcnt.pi);
}
static inline ucs_status_t
uct_rc_verbs_ep_rdma_zcopy(uct_rc_verbs_ep_t *ep, const uct_iov_t *iov,
size_t iovcnt, uint64_t remote_addr, uct_rkey_t rkey,
uct_completion_t *comp, int opcode)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(ep->super.super.super.iface,
uct_rc_verbs_iface_t);
struct ibv_sge sge[UCT_IB_MAX_IOV];
struct ibv_send_wr wr;
size_t sge_cnt;
UCT_RC_CHECK_RES(&iface->super, &ep->super);
sge_cnt = uct_ib_verbs_sge_fill_iov(sge, iov, iovcnt);
UCT_SKIP_ZERO_LENGTH(sge_cnt);
UCT_RC_VERBS_FILL_RDMA_WR_IOV(wr, wr.opcode, (enum ibv_wr_opcode)opcode,
sge, sge_cnt, remote_addr, rkey);
wr.next = NULL;
uct_rc_verbs_ep_post_send(iface, ep, &wr, IBV_SEND_SIGNALED, INT_MAX);
uct_rc_txqp_add_send_comp(&iface->super, &ep->super.txqp, comp, ep->txcnt.pi,
UCT_RC_IFACE_SEND_OP_FLAG_ZCOPY);
return UCS_INPROGRESS;
}
static UCS_F_ALWAYS_INLINE void
uct_rc_verbs_ep_atomic_post(uct_rc_verbs_ep_t *ep, int opcode, uint64_t compare_add,
uint64_t swap, uint64_t remote_addr, uct_rkey_t rkey,
uct_rc_iface_send_desc_t *desc, int force_sig)
{
struct ibv_send_wr wr;
struct ibv_sge sge;
UCT_RC_VERBS_FILL_ATOMIC_WR(wr, wr.opcode, sge, (enum ibv_wr_opcode)opcode,
compare_add, swap, remote_addr,
uct_ib_md_direct_rkey(rkey));
UCT_TL_EP_STAT_ATOMIC(&ep->super.super);
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, force_sig, INT_MAX);
}
static UCS_F_ALWAYS_INLINE ucs_status_t
uct_rc_verbs_ep_atomic(uct_rc_verbs_ep_t *ep, int opcode, void *result,
uint64_t compare_add, uint64_t swap, uint64_t remote_addr,
uct_rkey_t rkey, uct_completion_t *comp)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(ep->super.super.super.iface,
uct_rc_verbs_iface_t);
uct_rc_iface_send_desc_t *desc;
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_IFACE_GET_TX_ATOMIC_FETCH_DESC(&iface->super, &iface->short_desc_mp,
desc, iface->super.config.atomic64_handler,
result, comp);
uct_rc_verbs_ep_atomic_post(ep, opcode, compare_add, swap, remote_addr,
rkey, desc, IBV_SEND_SIGNALED |
uct_rc_ep_fm(&iface->super, &ep->fi, IBV_SEND_FENCE));
return UCS_INPROGRESS;
}
ucs_status_t uct_rc_verbs_ep_put_short(uct_ep_h tl_ep, const void *buffer,
unsigned length, uint64_t remote_addr,
uct_rkey_t rkey)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
UCT_CHECK_LENGTH(length, 0, iface->config.max_inline, "put_short");
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_VERBS_FILL_INL_PUT_WR(iface, remote_addr, rkey, buffer, length);
UCT_TL_EP_STAT_OP(&ep->super.super, PUT, SHORT, length);
uct_rc_verbs_ep_post_send(iface, ep, &iface->inl_rwrite_wr,
IBV_SEND_INLINE | IBV_SEND_SIGNALED, INT_MAX);
return UCS_OK;
}
ssize_t uct_rc_verbs_ep_put_bcopy(uct_ep_h tl_ep, uct_pack_callback_t pack_cb,
void *arg, uint64_t remote_addr, uct_rkey_t rkey)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_send_desc_t *desc;
struct ibv_send_wr wr;
struct ibv_sge sge;
size_t length;
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_IFACE_GET_TX_PUT_BCOPY_DESC(&iface->super, &iface->super.tx.mp, desc,
pack_cb, arg, length);
UCT_RC_VERBS_FILL_RDMA_WR(wr, wr.opcode, IBV_WR_RDMA_WRITE, sge,
length, remote_addr, rkey);
UCT_TL_EP_STAT_OP(&ep->super.super, PUT, BCOPY, length);
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, IBV_SEND_SIGNALED, INT_MAX);
return length;
}
ucs_status_t uct_rc_verbs_ep_put_zcopy(uct_ep_h tl_ep, const uct_iov_t *iov, size_t iovcnt,
uint64_t remote_addr, uct_rkey_t rkey,
uct_completion_t *comp)
{
uct_ib_iface_t UCS_V_UNUSED *iface = ucs_derived_of(tl_ep->iface,
uct_ib_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep,
uct_rc_verbs_ep_t);
ucs_status_t status;
UCT_CHECK_IOV_SIZE(iovcnt, uct_ib_iface_get_max_iov(iface),
"uct_rc_verbs_ep_put_zcopy");
status = uct_rc_verbs_ep_rdma_zcopy(ep, iov, iovcnt, remote_addr,
rkey, comp, IBV_WR_RDMA_WRITE);
UCT_TL_EP_STAT_OP_IF_SUCCESS(status, &ep->super.super, PUT, ZCOPY,
uct_iov_total_length(iov, iovcnt));
return status;
}
ucs_status_t uct_rc_verbs_ep_get_bcopy(uct_ep_h tl_ep,
uct_unpack_callback_t unpack_cb,
void *arg, size_t length,
uint64_t remote_addr, uct_rkey_t rkey,
uct_completion_t *comp)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_send_desc_t *desc;
struct ibv_send_wr wr;
struct ibv_sge sge;
UCT_CHECK_LENGTH(length, 0, iface->super.super.config.seg_size, "get_bcopy");
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_IFACE_GET_TX_GET_BCOPY_DESC(&iface->super, &iface->super.tx.mp, desc,
unpack_cb, comp, arg, length);
UCT_RC_VERBS_FILL_RDMA_WR(wr, wr.opcode, IBV_WR_RDMA_READ, sge, length, remote_addr,
rkey);
UCT_TL_EP_STAT_OP(&ep->super.super, GET, BCOPY, length);
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, IBV_SEND_SIGNALED, INT_MAX);
return UCS_INPROGRESS;
}
ucs_status_t uct_rc_verbs_ep_get_zcopy(uct_ep_h tl_ep, const uct_iov_t *iov, size_t iovcnt,
uint64_t remote_addr, uct_rkey_t rkey,
uct_completion_t *comp)
{
uct_ib_iface_t UCS_V_UNUSED *iface = ucs_derived_of(tl_ep->iface,
uct_ib_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep,
uct_rc_verbs_ep_t);
ucs_status_t status;
UCT_CHECK_IOV_SIZE(iovcnt, uct_ib_iface_get_max_iov(iface),
"uct_rc_verbs_ep_get_zcopy");
status = uct_rc_verbs_ep_rdma_zcopy(ep, iov, iovcnt, remote_addr,
rkey, comp, IBV_WR_RDMA_READ);
if (status == UCS_INPROGRESS) {
UCT_TL_EP_STAT_OP(&ep->super.super, GET, ZCOPY,
uct_iov_total_length(iov, iovcnt));
}
return status;
}
ucs_status_t uct_rc_verbs_ep_am_short(uct_ep_h tl_ep, uint8_t id, uint64_t hdr,
const void *buffer, unsigned length)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
UCT_RC_CHECK_AM_SHORT(id, length, iface->config.max_inline);
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_CHECK_FC(&iface->super, &ep->super, id);
uct_rc_verbs_iface_fill_inl_am_sge(iface, id, hdr, buffer, length);
UCT_TL_EP_STAT_OP(&ep->super.super, AM, SHORT, sizeof(hdr) + length);
uct_rc_verbs_ep_post_send(iface, ep, &iface->inl_am_wr,
IBV_SEND_INLINE | IBV_SEND_SOLICITED, INT_MAX);
UCT_RC_UPDATE_FC(&iface->super, &ep->super, id);
return UCS_OK;
}
ssize_t uct_rc_verbs_ep_am_bcopy(uct_ep_h tl_ep, uint8_t id,
uct_pack_callback_t pack_cb, void *arg,
unsigned flags)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_send_desc_t *desc;
struct ibv_send_wr wr;
struct ibv_sge sge;
size_t length;
UCT_CHECK_AM_ID(id);
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_CHECK_FC(&iface->super, &ep->super, id);
UCT_RC_IFACE_GET_TX_AM_BCOPY_DESC(&iface->super, &iface->super.tx.mp, desc,
id, uct_rc_am_hdr_fill, uct_rc_hdr_t,
pack_cb, arg, &length);
UCT_RC_VERBS_FILL_AM_BCOPY_WR(wr, sge, length + sizeof(uct_rc_hdr_t),
wr.opcode);
UCT_TL_EP_STAT_OP(&ep->super.super, AM, BCOPY, length);
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, IBV_SEND_SOLICITED, INT_MAX);
UCT_RC_UPDATE_FC(&iface->super, &ep->super, id);
return length;
}
ucs_status_t uct_rc_verbs_ep_am_zcopy(uct_ep_h tl_ep, uint8_t id, const void *header,
unsigned header_length, const uct_iov_t *iov,
size_t iovcnt, unsigned flags,
uct_completion_t *comp)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_send_desc_t *desc = NULL;
struct ibv_sge sge[UCT_IB_MAX_IOV]; /* First sge is reserved for the header */
struct ibv_send_wr wr;
int send_flags;
size_t sge_cnt;
UCT_CHECK_IOV_SIZE(iovcnt, uct_ib_iface_get_max_iov(&iface->super.super) - 1,
"uct_rc_verbs_ep_am_zcopy");
UCT_RC_CHECK_AM_ZCOPY(id, header_length, uct_iov_total_length(iov, iovcnt),
iface->config.short_desc_size,
iface->super.super.config.seg_size);
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_CHECK_FC(&iface->super, &ep->super, id);
UCT_RC_IFACE_GET_TX_AM_ZCOPY_DESC(&iface->super, &iface->short_desc_mp,
desc, id, header, header_length, comp,
&send_flags);
sge[0].length = sizeof(uct_rc_hdr_t) + header_length;
sge_cnt = uct_ib_verbs_sge_fill_iov(sge + 1, iov, iovcnt);
UCT_RC_VERBS_FILL_AM_ZCOPY_WR_IOV(wr, sge, (sge_cnt + 1), wr.opcode);
UCT_TL_EP_STAT_OP(&ep->super.super, AM, ZCOPY,
(header_length + uct_iov_total_length(iov, iovcnt)));
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, send_flags | IBV_SEND_SOLICITED,
UCT_IB_MAX_ZCOPY_LOG_SGE(&iface->super.super));
UCT_RC_UPDATE_FC(&iface->super, &ep->super, id);
return UCS_INPROGRESS;
}
ucs_status_t uct_rc_verbs_ep_atomic64_post(uct_ep_h tl_ep, unsigned opcode, uint64_t value,
uint64_t remote_addr, uct_rkey_t rkey)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_send_desc_t *desc;
if (opcode != UCT_ATOMIC_OP_ADD) {
return UCS_ERR_UNSUPPORTED;
}
/* TODO don't allocate descriptor - have dummy buffer */
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_IFACE_GET_TX_ATOMIC_DESC(&iface->super, &iface->short_desc_mp, desc);
uct_rc_verbs_ep_atomic_post(ep,
IBV_WR_ATOMIC_FETCH_AND_ADD, value, 0,
remote_addr, rkey, desc,
IBV_SEND_SIGNALED);
return UCS_OK;
}
ucs_status_t uct_rc_verbs_ep_atomic64_fetch(uct_ep_h tl_ep, uct_atomic_op_t opcode,
uint64_t value, uint64_t *result,
uint64_t remote_addr, uct_rkey_t rkey,
uct_completion_t *comp)
{
if (opcode != UCT_ATOMIC_OP_ADD) {
return UCS_ERR_UNSUPPORTED;
}
return uct_rc_verbs_ep_atomic(ucs_derived_of(tl_ep, uct_rc_verbs_ep_t),
IBV_WR_ATOMIC_FETCH_AND_ADD, result, value, 0,
remote_addr, rkey, comp);
}
ucs_status_t uct_rc_verbs_ep_atomic_cswap64(uct_ep_h tl_ep, uint64_t compare, uint64_t swap,
uint64_t remote_addr, uct_rkey_t rkey,
uint64_t *result, uct_completion_t *comp)
{
return uct_rc_verbs_ep_atomic(ucs_derived_of(tl_ep, uct_rc_verbs_ep_t),
IBV_WR_ATOMIC_CMP_AND_SWP, result, compare, swap,
remote_addr, rkey, comp);
}
ucs_status_t uct_rc_verbs_ep_flush(uct_ep_h tl_ep, unsigned flags,
uct_completion_t *comp)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
ucs_status_t status;
if (ucs_unlikely(flags & UCT_FLUSH_FLAG_CANCEL)) {
uct_ep_pending_purge(&ep->super.super.super, NULL, 0);
uct_rc_verbs_ep_handle_failure(ep, UCS_ERR_CANCELED);
return UCS_OK;
}
status = uct_rc_ep_flush(&ep->super, iface->config.tx_max_wr, flags);
if (status != UCS_INPROGRESS) {
return status;
}
if (uct_rc_txqp_unsignaled(&ep->super.txqp) != 0) {
status = uct_rc_verbs_ep_put_short(tl_ep, NULL, 0, 0, 0);
if (status != UCS_OK) {
return status;
}
}
return uct_rc_txqp_add_flush_comp(&iface->super, &ep->super.super,
&ep->super.txqp, comp, ep->txcnt.pi);
}
ucs_status_t uct_rc_verbs_ep_fence(uct_ep_h tl_ep, unsigned flags)
{
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
return uct_rc_ep_fence(tl_ep, &ep->fi, 1);
}
ucs_status_t uct_rc_verbs_ep_fc_ctrl(uct_ep_t *tl_ep, unsigned op,
uct_rc_fc_request_t *req)
{
struct ibv_send_wr fc_wr;
uct_rc_verbs_iface_t *iface = ucs_derived_of(tl_ep->iface,
uct_rc_verbs_iface_t);
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_hdr_t *hdr;
struct ibv_sge sge;
int flags;
if (!iface->fc_desc) {
hdr = &iface->am_inl_hdr.rc_hdr;
hdr->am_id = UCT_RC_EP_FC_PURE_GRANT;
fc_wr.sg_list = iface->inl_sge;
iface->inl_sge[0].addr = (uintptr_t)hdr;
iface->inl_sge[0].length = sizeof(*hdr);
flags = IBV_SEND_INLINE;
} else {
hdr = (uct_rc_hdr_t*)(iface->fc_desc + 1);
sge.addr = (uintptr_t)hdr;
sge.length = sizeof(*hdr);
sge.lkey = iface->fc_desc->lkey;
fc_wr.sg_list = &sge;
flags = 0;
}
/* In RC only PURE grant is sent as a separate message. Other FC
* messages are bundled with AM. */
ucs_assert(op == UCT_RC_EP_FC_PURE_GRANT);
/* Do not check FC WND here to avoid head-to-head deadlock.
* Credits grant should be sent regardless of FC wnd state. */
UCT_RC_CHECK_RES(&iface->super, &ep->super);
fc_wr.opcode = IBV_WR_SEND;
fc_wr.next = NULL;
fc_wr.num_sge = 1;
uct_rc_verbs_ep_post_send(iface, ep, &fc_wr, flags, INT_MAX);
return UCS_OK;
}
ucs_status_t uct_rc_verbs_ep_handle_failure(uct_rc_verbs_ep_t *ep,
ucs_status_t status)
{
uct_rc_iface_t *iface = ucs_derived_of(ep->super.super.super.iface,
uct_rc_iface_t);
iface->tx.cq_available += ep->txcnt.pi - ep->txcnt.ci;
/* Reset CI to prevent cq_available overrun on ep_destroy */
ep->txcnt.ci = ep->txcnt.pi;
uct_rc_txqp_purge_outstanding(&ep->super.txqp, status, 0);
return iface->super.ops->set_ep_failed(&iface->super, &ep->super.super.super,
status);
}
ucs_status_t uct_rc_verbs_ep_get_address(uct_ep_h tl_ep, uct_ep_addr_t *addr)
{
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_ep_address_t *rc_addr = (uct_rc_ep_address_t*)addr;
uct_ib_pack_uint24(rc_addr->qp_num, ep->qp->qp_num);
return UCS_OK;
}
ucs_status_t uct_rc_verbs_ep_connect_to_ep(uct_ep_h tl_ep, const uct_device_addr_t *dev_addr,
const uct_ep_addr_t *ep_addr)
{
uct_rc_verbs_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_verbs_ep_t);
uct_rc_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_iface_t);
const uct_ib_address_t *ib_addr = (const uct_ib_address_t *)dev_addr;
const uct_rc_ep_address_t *rc_addr = (const uct_rc_ep_address_t*)ep_addr;
uint32_t qp_num;
struct ibv_ah_attr ah_attr;
uct_ib_iface_fill_ah_attr_from_addr(&iface->super, ib_addr, &ah_attr);
qp_num = uct_ib_unpack_uint24(rc_addr->qp_num);
return uct_rc_iface_qp_connect(iface, ep->qp, qp_num, &ah_attr);
}
UCS_CLASS_INIT_FUNC(uct_rc_verbs_ep_t, const uct_ep_params_t *params)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(params->iface, uct_rc_verbs_iface_t);
uct_ib_qp_attr_t attr = {};
ucs_status_t status;
status = uct_rc_iface_qp_create(&iface->super, &self->qp, &attr,
iface->super.config.tx_qp_len, iface->srq);
if (status != UCS_OK) {
goto err;
}
UCS_CLASS_CALL_SUPER_INIT(uct_rc_ep_t, &iface->super, self->qp->qp_num);
status = uct_rc_iface_qp_init(&iface->super, self->qp);
if (status != UCS_OK) {
goto err_qp_cleanup;
}
uct_rc_iface_add_qp(&iface->super, &self->super, self->qp->qp_num);
uct_rc_txqp_available_set(&self->super.txqp, iface->config.tx_max_wr);
uct_rc_verbs_txcnt_init(&self->txcnt);
uct_ib_fence_info_init(&self->fi);
return UCS_OK;
err_qp_cleanup:
uct_ib_destroy_qp(self->qp);
err:
return status;
}
static UCS_CLASS_CLEANUP_FUNC(uct_rc_verbs_ep_t)
{
uct_rc_verbs_iface_t *iface = ucs_derived_of(self->super.super.super.iface,
uct_rc_verbs_iface_t);
/* NOTE: usually, ci == pi here, but if user calls
* flush(UCT_FLUSH_FLAG_CANCEL) then ep_destroy without next progress,
* TX-completion handler is not able to return CQ credits because
* the EP will not be found (base class destructor deletes itself from
* iface->eps). So, lets return credits here since handle_failure
* ignores not found EP. */
ucs_assert(self->txcnt.pi >= self->txcnt.ci);
iface->super.tx.cq_available += self->txcnt.pi - self->txcnt.ci;
ucs_assert(iface->super.tx.cq_available < iface->super.config.tx_ops_count);
uct_rc_iface_remove_qp(&iface->super, self->qp->qp_num);
uct_ib_destroy_qp(self->qp);
}
UCS_CLASS_DEFINE(uct_rc_verbs_ep_t, uct_rc_ep_t);
UCS_CLASS_DEFINE_NEW_FUNC(uct_rc_verbs_ep_t, uct_ep_t, const uct_ep_params_t *);
UCS_CLASS_DEFINE_DELETE_FUNC(uct_rc_verbs_ep_t, uct_ep_t);