int mca_btl_vader_put (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint, struct mca_btl_base_descriptor_t *des) { mca_btl_vader_frag_t *frag = (mca_btl_vader_frag_t *) des; mca_btl_base_segment_t *src = des->des_local; mca_btl_base_segment_t *dst = des->des_remote; const size_t size = min(dst->seg_len, src->seg_len); mca_mpool_base_registration_t *reg; void *rem_ptr; reg = vader_get_registation (endpoint, dst->seg_addr.pval, dst->seg_len, 0, &rem_ptr); if (OPAL_UNLIKELY(NULL == reg)) { return OPAL_ERROR; } vader_memmove (rem_ptr, src->seg_addr.pval, size); vader_return_registration (reg, endpoint); /* always call the callback function */ frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK; mca_btl_vader_frag_complete (frag); return OPAL_SUCCESS; }
int mca_btl_vader_get_xpmem (mca_btl_base_module_t *btl, mca_btl_base_endpoint_t *endpoint, void *local_address, uint64_t remote_address, mca_btl_base_registration_handle_t *local_handle, mca_btl_base_registration_handle_t *remote_handle, size_t size, int flags, int order, mca_btl_base_rdma_completion_fn_t cbfunc, void *cbcontext, void *cbdata) { mca_rcache_base_registration_t *reg; void *rem_ptr; /* silence warning about unused arguments */ (void) local_handle; (void) remote_handle; reg = vader_get_registation (endpoint, (void *)(intptr_t) remote_address, size, 0, &rem_ptr); if (OPAL_UNLIKELY(NULL == rem_ptr)) { return OPAL_ERROR; } vader_memmove (local_address, rem_ptr, size); vader_return_registration (reg, endpoint); /* always call the callback function */ cbfunc (btl, endpoint, local_address, local_handle, cbcontext, cbdata, OPAL_SUCCESS); return OPAL_SUCCESS; }
/** * Initiate an synchronous get. * * @param btl (IN) BTL module * @param endpoint (IN) BTL addressing information * @param descriptor (IN) Description of the data to be transferred */ int mca_btl_vader_get (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint, struct mca_btl_base_descriptor_t *des) { mca_btl_vader_frag_t *frag = (mca_btl_vader_frag_t *) des; mca_btl_base_segment_t *src = des->des_src; mca_btl_base_segment_t *dst = des->des_dst; const size_t size = min(dst->seg_len, src->seg_len); mca_mpool_base_registration_t *reg; void *rem_ptr; reg = vader_get_registation (endpoint, src->seg_addr.pval, src->seg_len, 0, &rem_ptr); if (OPAL_UNLIKELY(NULL == rem_ptr)) { return OMPI_ERROR; } vader_memmove (dst->seg_addr.pval, rem_ptr, size); vader_return_registration (reg, endpoint); mca_btl_vader_frag_complete (frag); return OMPI_SUCCESS; }
/** * Pack data * * @param btl (IN) BTL module */ static struct mca_btl_base_descriptor_t *vader_prepare_src (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint, mca_mpool_base_registration_t *registration, struct opal_convertor_t *convertor, uint8_t order, size_t reserve, size_t *size, uint32_t flags) { const size_t total_size = reserve + *size; struct iovec iov; mca_btl_vader_frag_t *frag; uint32_t iov_count = 1; void *data_ptr, *fbox_ptr; int rc; opal_convertor_get_current_pointer (convertor, &data_ptr); if (OPAL_LIKELY(reserve)) { /* in place send fragment */ if (OPAL_UNLIKELY(opal_convertor_need_buffers(convertor))) { /* non-contiguous data requires the convertor */ (void) MCA_BTL_VADER_FRAG_ALLOC_EAGER(frag); if (OPAL_UNLIKELY(NULL == frag)) { return NULL; } iov.iov_len = *size; iov.iov_base = (IOVBASE_TYPE *)(((uintptr_t)(frag->segments[0].seg_addr.pval)) + reserve); rc = opal_convertor_pack (convertor, &iov, &iov_count, size); if (OPAL_UNLIKELY(rc < 0)) { MCA_BTL_VADER_FRAG_RETURN(frag); return NULL; } frag->segments[0].seg_len = total_size; } else { (void) MCA_BTL_VADER_FRAG_ALLOC_USER(frag); if (OPAL_UNLIKELY(NULL == frag)) { return NULL; } if (total_size > (size_t) mca_btl_vader_component.max_inline_send) { /* single copy send */ frag->hdr->flags = MCA_BTL_VADER_FLAG_SINGLE_COPY; /* set up single copy io vector */ frag->hdr->sc_iov.iov_base = data_ptr; frag->hdr->sc_iov.iov_len = *size; frag->segments[0].seg_len = reserve; frag->segments[1].seg_len = *size; frag->segments[1].seg_addr.pval = data_ptr; frag->base.des_src_cnt = 2; } else { /* inline send */ /* try to reserve a fast box for this transfer */ fbox_ptr = mca_btl_vader_reserve_fbox (endpoint, total_size); if (fbox_ptr) { frag->hdr->flags |= MCA_BTL_VADER_FLAG_FBOX; frag->segments[0].seg_addr.pval = fbox_ptr; } /* NTH: the covertor adds some latency so we bypass it here */ vader_memmove ((void *)((uintptr_t)frag->segments[0].seg_addr.pval + reserve), data_ptr, *size); frag->segments[0].seg_len = total_size; } } } else { /* put/get fragment */ (void) MCA_BTL_VADER_FRAG_ALLOC_USER(frag); if (OPAL_UNLIKELY(NULL == frag)) { return NULL; } frag->segments[0].seg_addr.lval = (uint64_t)(uintptr_t) data_ptr; frag->segments[0].seg_len = total_size; } frag->base.order = order; frag->base.des_flags = flags; frag->endpoint = endpoint; return &frag->base; }