- LASSERT (!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV | LNET_MD_PHYS)));
- if (desc->bd_iov_count == 1) {
- md->start = desc->bd_iov[0].iov_base;
- md->length = desc->bd_iov[0].iov_len;
- return;
- }
-
- md->options |= LNET_MD_IOVEC;
- md->start = &desc->bd_iov[0];
- md->length = desc->bd_iov_count;
+ CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON);
+
+ LASSERT(mdidx < desc->bd_md_max_brw);
+ LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES);
+ LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV |
+ LNET_MD_PHYS)));
+
+ md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV);
+ md->length = min_t(unsigned int, LNET_MAX_IOV, md->length);
+
+ if (ptlrpc_is_bulk_desc_kiov(desc->bd_type)) {
+ md->options |= LNET_MD_KIOV;
+ if (GET_ENC_KIOV(desc))
+ md->start = &BD_GET_ENC_KIOV(desc, mdidx *
+ LNET_MAX_IOV);
+ else
+ md->start = &BD_GET_KIOV(desc, mdidx * LNET_MAX_IOV);
+ } else if (ptlrpc_is_bulk_desc_kvec(desc->bd_type)) {
+ md->options |= LNET_MD_IOVEC;
+ if (GET_ENC_KVEC(desc))
+ md->start = &BD_GET_ENC_KVEC(desc, mdidx *
+ LNET_MAX_IOV);
+ else
+ md->start = &BD_GET_KVEC(desc, mdidx * LNET_MAX_IOV);
+ }