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, 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->verbs_common.config.short_desc_size,
iface->super.super.config.seg_size);
UCT_RC_CHECK_RES(&iface->super, &ep->super);
UCT_RC_CHECK_FC_WND(&iface->super, &ep->super, id);
UCT_RC_IFACE_GET_TX_AM_ZCOPY_DESC(&iface->super, &iface->verbs_common.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);
UCT_RC_UPDATE_FC_WND(&iface->super, &ep->super, id);
return UCS_INPROGRESS;
}
ucs_status_t uct_dc_mlx5_ep_tag_eager_zcopy(uct_ep_h tl_ep, uct_tag_t tag,
uint64_t imm, const uct_iov_t *iov,
size_t iovcnt, unsigned flags,
uct_completion_t *comp)
{
uct_dc_mlx5_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_dc_mlx5_iface_t);
uct_dc_mlx5_ep_t *ep = ucs_derived_of(tl_ep, uct_dc_mlx5_ep_t);
uint32_t app_ctx, ib_imm;
int opcode;
UCT_CHECK_IOV_SIZE(iovcnt, UCT_RC_MLX5_TM_EAGER_ZCOPY_MAX_IOV(UCT_IB_MLX5_AV_FULL_SIZE),
"uct_dc_mlx5_ep_tag_eager_zcopy");
UCT_RC_CHECK_ZCOPY_DATA(sizeof(struct ibv_exp_tmh),
uct_iov_total_length(iov, iovcnt),
iface->super.super.super.config.seg_size);
UCT_DC_MLX5_CHECK_RES(iface, ep);
UCT_RC_MLX5_FILL_TM_IMM(imm, app_ctx, ib_imm, opcode, MLX5_OPCODE_SEND, _IMM);
uct_dc_mlx5_iface_zcopy_post(iface, ep, opcode|UCT_RC_MLX5_OPCODE_FLAG_TM,
iov, iovcnt, 0, "", 0, 0, 0, tag, app_ctx,
ib_imm, comp, MLX5_WQE_CTRL_SOLICITED);
UCT_TL_EP_STAT_OP(&ep->super, TAG, ZCOPY,
uct_iov_total_length(iov, iovcnt));
return UCS_INPROGRESS;
}
ucs_status_t uct_cuda_copy_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_cuda_copy_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_cuda_copy_iface_t);
ucs_status_t status;
if (iface->stream_d2h == 0) {
status = UCT_CUDA_FUNC(cudaStreamCreateWithFlags(&iface->stream_d2h,
cudaStreamNonBlocking));
if (UCS_OK != status) {
return UCS_ERR_IO_ERROR;
}
}
status = uct_cuda_copy_post_cuda_async_copy(tl_ep, iov[0].buffer, (void *)remote_addr,
iov[0].length, cudaMemcpyDeviceToHost,
iface->stream_d2h,
&iface->outstanding_d2h_cuda_event_q, comp);
UCT_TL_EP_STAT_OP(ucs_derived_of(tl_ep, uct_base_ep_t), GET, ZCOPY,
uct_iov_total_length(iov, iovcnt));
uct_cuda_copy_trace_data(remote_addr, rkey, "GET_ZCOPY [length %zu]",
uct_iov_total_length(iov, iovcnt));
return status;
}
ucs_status_t uct_dc_mlx5_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_dc_mlx5_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_dc_mlx5_iface_t);
uct_dc_mlx5_ep_t *ep = ucs_derived_of(tl_ep, uct_dc_mlx5_ep_t);
UCT_CHECK_IOV_SIZE(iovcnt, UCT_IB_MLX5_AM_ZCOPY_MAX_IOV,
"uct_dc_mlx5_ep_am_zcopy");
UCT_RC_MLX5_CHECK_AM_ZCOPY(id, header_length, uct_iov_total_length(iov, iovcnt),
iface->super.super.super.config.seg_size,
UCT_IB_MLX5_AV_FULL_SIZE);
UCT_DC_CHECK_RES_AND_FC(iface, ep);
uct_dc_mlx5_iface_zcopy_post(iface, ep, MLX5_OPCODE_SEND, iov, iovcnt,
id, header, header_length, 0, 0, 0ul, 0, 0,
comp, MLX5_WQE_CTRL_SOLICITED);
UCT_RC_UPDATE_FC_WND(&iface->super.super, &ep->fc);
UCT_TL_EP_STAT_OP(&ep->super, AM, ZCOPY, header_length +
uct_iov_total_length(iov, iovcnt));
return UCS_INPROGRESS;
}
ucs_status_t uct_rocm_copy_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)
{
ucs_status_t status;
status = uct_rocm_copy_ep_zcopy(tl_ep, remote_addr, iov, 0);
UCT_TL_EP_STAT_OP(ucs_derived_of(tl_ep, uct_base_ep_t), GET, ZCOPY,
uct_iov_total_length(iov, iovcnt));
uct_rocm_copy_trace_data(remote_addr, rkey, "GET_ZCOPY [length %zu]",
uct_iov_total_length(iov, iovcnt));
return status;
}
ucs_status_t uct_rc_verbs_ep_tag_eager_zcopy(uct_ep_h tl_ep, uct_tag_t tag,
uint64_t imm, const uct_iov_t *iov,
size_t iovcnt, 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_sge sge[UCT_IB_MAX_IOV];
struct ibv_send_wr wr;
int send_flags;
size_t sge_cnt;
uint32_t app_ctx;
UCT_CHECK_IOV_SIZE(iovcnt, 1ul, "uct_rc_verbs_ep_tag_eager_zcopy");
UCT_RC_CHECK_ZCOPY_DATA(iface->tm.eager_hdr_size,
uct_iov_total_length(iov, iovcnt),
iface->super.super.config.seg_size);
UCT_RC_CHECK_RES(&iface->super, &ep->super);
sge_cnt = uct_ib_verbs_sge_fill_iov(sge + 1, iov, iovcnt);
UCT_RC_VERBS_FILL_TM_IMM(wr, imm, app_ctx);
UCT_RC_VERBS_GET_TM_ZCOPY_DESC(iface, &iface->verbs_common.short_desc_mp,
desc, tag, app_ctx, comp, &send_flags, sge[0]);
wr.num_sge = sge_cnt + 1;
wr.sg_list = sge;
uct_rc_verbs_ep_post_send_desc(ep, &wr, desc, send_flags);
return UCS_INPROGRESS;
}
ucs_status_t uct_dc_mlx5_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_dc_mlx5_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_dc_mlx5_iface_t);
uct_dc_mlx5_ep_t *ep = ucs_derived_of(tl_ep, uct_dc_mlx5_ep_t);
UCT_CHECK_IOV_SIZE(iovcnt, uct_ib_iface_get_max_iov(&iface->super.super.super),
"uct_dc_mlx5_ep_get_zcopy");
UCT_CHECK_LENGTH(uct_iov_total_length(iov, iovcnt), UCT_IB_MAX_MESSAGE_SIZE,
"get_zcopy");
UCT_DC_CHECK_RES(&iface->super, &ep->super);
uct_dc_mlx5_iface_zcopy_post(iface, ep, MLX5_OPCODE_RDMA_READ, iov, iovcnt,
0, NULL, 0, remote_addr, rkey, comp);
UCT_TL_EP_STAT_OP(&ep->super.super, GET, ZCOPY,
uct_iov_total_length(iov, iovcnt));
return UCS_INPROGRESS;
}
ucs_status_t uct_rc_mlx5_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 *iface = ucs_derived_of(tl_ep->iface, uct_ib_iface_t);
uct_rc_mlx5_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_mlx5_ep_t);
ucs_status_t status;
UCT_CHECK_IOV_SIZE(iovcnt, uct_ib_iface_get_max_iov(iface),
"uct_rc_mlx5_ep_get_zcopy");
UCT_CHECK_LENGTH(uct_iov_total_length(iov, iovcnt), UCT_IB_MAX_MESSAGE_SIZE,
"get_zcopy");
status = uct_rc_mlx5_ep_zcopy_post(ep, MLX5_OPCODE_RDMA_READ, iov, iovcnt,
0, NULL, 0, remote_addr, rkey,
MLX5_WQE_CTRL_CQ_UPDATE, comp);
UCT_TL_EP_STAT_OP_IF_SUCCESS(status, &ep->super.super, GET, ZCOPY,
uct_iov_total_length(iov, iovcnt));
return status;
}
ucs_status_t uct_rc_mlx5_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, uct_completion_t *comp)
{
uct_rc_mlx5_ep_t *ep = ucs_derived_of(tl_ep, uct_rc_mlx5_ep_t);
uct_rc_iface_t *iface = ucs_derived_of(tl_ep->iface, uct_rc_iface_t);
ucs_status_t status;
UCT_CHECK_IOV_SIZE(iovcnt, UCT_IB_MLX5_AM_ZCOPY_MAX_IOV,
"uct_rc_mlx5_ep_am_zcopy");
UCT_RC_MLX5_CHECK_AM_ZCOPY(id, header_length, uct_iov_total_length(iov, iovcnt),
iface->super.config.seg_size, 0);
UCT_RC_CHECK_FC_WND(iface, &ep->super, id);
status = uct_rc_mlx5_ep_zcopy_post(ep, MLX5_OPCODE_SEND, iov, iovcnt,
id, header, header_length, 0, 0, 0, comp);
if (ucs_likely(status >= 0)) {
UCT_TL_EP_STAT_OP(&ep->super.super, AM, ZCOPY,
header_length + uct_iov_total_length(iov, iovcnt));
UCT_RC_UPDATE_FC_WND(iface, &ep->super, id);
}
return status;
}
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 *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;
}