diff --git a/include/rdma/providers/fi_peer.h b/include/rdma/providers/fi_peer.h
index 093290d1b4c..9968027c3aa 100644
--- a/include/rdma/providers/fi_peer.h
+++ b/include/rdma/providers/fi_peer.h
@@ -173,16 +173,28 @@ struct fi_peer_rx_entry {
 	size_t count;
 	void **desc;
 	void *peer_context;
+	void *peer_md;
 	void *owner_context;
 	struct iovec *iov;
+	uint32_t match_id;
+};
+
+struct fi_peer_match {
+	fi_addr_t addr;
+	uint64_t tag;
+	size_t size;
+	void *context;
+	uint32_t match_id;
 };
 
 struct fi_ops_srx_owner {
 	size_t	size;
-	int	(*get_msg)(struct fid_peer_srx *srx, fi_addr_t addr,
-			size_t size, struct fi_peer_rx_entry **entry);
-	int	(*get_tag)(struct fid_peer_srx *srx, fi_addr_t addr,
-			uint64_t tag, struct fi_peer_rx_entry **entry);
+	int	(*get_msg)(struct fid_peer_srx *srx,
+			   struct fi_peer_match *match,
+			   struct fi_peer_rx_entry **entry);
+	int	(*get_tag)(struct fid_peer_srx *srx,
+			   struct fi_peer_match *match,
+			   struct fi_peer_rx_entry **entry);
 	int	(*queue_msg)(struct fi_peer_rx_entry *entry);
 	int	(*queue_tag)(struct fi_peer_rx_entry *entry);
 	void	(*foreach_unspec_addr)(struct fid_peer_srx *srx,
@@ -197,6 +209,9 @@ struct fi_ops_srx_peer {
 	int	(*start_tag)(struct fi_peer_rx_entry *entry);
 	int	(*discard_msg)(struct fi_peer_rx_entry *entry);
 	int	(*discard_tag)(struct fi_peer_rx_entry *entry);
+	int	(*addr_match)(fi_addr_t addr, struct fi_peer_match *match);
+	int	(*mem_reg)(struct fid_ep *ep, struct iovec *iov, fi_addr_t addr,
+			   void **md, uint32_t *match_id);
 };
 
 struct fid_peer_srx {
diff --git a/prov/efa/src/rdm/efa_rdm_msg.c b/prov/efa/src/rdm/efa_rdm_msg.c
index 7ff4a116928..e71fbc3c988 100644
--- a/prov/efa/src/rdm/efa_rdm_msg.c
+++ b/prov/efa/src/rdm/efa_rdm_msg.c
@@ -764,6 +764,7 @@ struct efa_rdm_ope *efa_rdm_msg_alloc_rxe_for_msgrtm(struct efa_rdm_ep *ep,
 	size_t data_size;
 	int ret;
 	int pkt_type;
+	struct fi_peer_match match = {0};
 
 	if ((*pkt_entry_ptr)->alloc_type == EFA_RDM_PKE_FROM_USER_BUFFER) {
 		/* If a pkt_entry is constructred from user supplied buffer,
@@ -782,7 +783,10 @@ struct efa_rdm_ope *efa_rdm_msg_alloc_rxe_for_msgrtm(struct efa_rdm_ep *ep,
 	peer_srx = util_get_peer_srx(ep->peer_srx_ep);
 	data_size = efa_rdm_pke_get_rtm_msg_length(*pkt_entry_ptr);
 
-	ret = peer_srx->owner_ops->get_msg(peer_srx, (*pkt_entry_ptr)->addr, data_size, &peer_rxe);
+	match.addr = (*pkt_entry_ptr)->addr;
+	match.size = data_size;
+
+	ret = peer_srx->owner_ops->get_msg(peer_srx, &match, &peer_rxe);
 
 	if (ret == FI_SUCCESS) { /* A matched rxe is found */
 		rxe = efa_rdm_msg_alloc_matched_rxe_for_rtm(ep, *pkt_entry_ptr, peer_rxe, ofi_op_msg);
@@ -844,12 +848,14 @@ struct efa_rdm_ope *efa_rdm_msg_alloc_rxe_for_tagrtm(struct efa_rdm_ep *ep,
 	struct efa_rdm_ope *rxe;
 	int ret;
 	int pkt_type;
+	struct fi_peer_match match = {0};
 
 	peer_srx = util_get_peer_srx(ep->peer_srx_ep);
 
-	ret = peer_srx->owner_ops->get_tag(peer_srx, (*pkt_entry_ptr)->addr,
-					   efa_rdm_pke_get_rtm_tag(*pkt_entry_ptr),
-					   &peer_rxe);
+	match.addr = (*pkt_entry_ptr)->addr;
+	match.tag = efa_rdm_pke_get_rtm_tag(*pkt_entry_ptr);
+
+	ret = peer_srx->owner_ops->get_tag(peer_srx, &match, &peer_rxe);
 
 	if (ret == FI_SUCCESS) { /* A matched rxe is found */
 		rxe = efa_rdm_msg_alloc_matched_rxe_for_rtm(ep, *pkt_entry_ptr, peer_rxe, ofi_op_tagged);
diff --git a/prov/shm/src/smr_progress.c b/prov/shm/src/smr_progress.c
index b30918e6986..b46d1916f4c 100644
--- a/prov/shm/src/smr_progress.c
+++ b/prov/shm/src/smr_progress.c
@@ -987,13 +987,16 @@ 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;
+	struct fi_peer_match match_info = {0};
 	int ret;
 
-	addr = ep->region->map->peers[cmd->msg.hdr.id].fiaddr;
+	match_info.addr = ep->region->map->peers[cmd->msg.hdr.id].fiaddr;
+	match_info.context = NULL;
+
 	if (cmd->msg.hdr.op == ofi_op_tagged) {
-		ret = peer_srx->owner_ops->get_tag(peer_srx, addr,
-				cmd->msg.hdr.tag, &rx_entry);
+		match_info.tag = cmd->msg.hdr.tag;
+		ret = peer_srx->owner_ops->get_tag(peer_srx, &match_info,
+				&rx_entry);
 		if (ret == -FI_ENOENT) {
 			ret = smr_alloc_cmd_ctx(ep, rx_entry, cmd);
 			if (ret) {
@@ -1009,8 +1012,9 @@ static int smr_progress_cmd_msg(struct smr_ep *ep, struct smr_cmd *cmd)
 			goto out;
 		}
 	} else {
-		ret = peer_srx->owner_ops->get_msg(peer_srx, addr,
-				cmd->msg.hdr.size, &rx_entry);
+		match_info.size = cmd->msg.hdr.size;
+		ret = peer_srx->owner_ops->get_msg(peer_srx, &match_info,
+				&rx_entry);
 		if (ret == -FI_ENOENT) {
 			ret = smr_alloc_cmd_ctx(ep, rx_entry, cmd);
 			if (ret) {
diff --git a/prov/sm2/src/sm2_progress.c b/prov/sm2/src/sm2_progress.c
index 8d2b822907f..fb7ab53b250 100644
--- a/prov/sm2/src/sm2_progress.c
+++ b/prov/sm2/src/sm2_progress.c
@@ -520,6 +520,7 @@ static int sm2_progress_recv_msg(struct sm2_ep *ep,
 {
 	struct fid_peer_srx *peer_srx = sm2_get_peer_srx(ep);
 	struct fi_peer_rx_entry *rx_entry;
+	struct fi_peer_match match;
 	struct sm2_av *sm2_av;
 	fi_addr_t addr;
 	int ret = 0;
@@ -540,9 +541,12 @@ static int sm2_progress_recv_msg(struct sm2_ep *ep,
 	sm2_av = container_of(ep->util_ep.av, struct sm2_av, util_av);
 	addr = sm2_av->reverse_lookup[xfer_entry->hdr.sender_gid];
 
+	memset(&match, 0, sizeof(match));
+	match.addr = addr;
+
 	if (xfer_entry->hdr.op == ofi_op_tagged) {
-		ret = peer_srx->owner_ops->get_tag(
-			peer_srx, addr, xfer_entry->hdr.tag, &rx_entry);
+		match.tag = xfer_entry->hdr.tag;
+		ret = peer_srx->owner_ops->get_tag(peer_srx, &match, &rx_entry);
 		if (ret == -FI_ENOENT) {
 			xfer_entry->hdr.proto_flags |= SM2_UNEXP;
 			ret = sm2_alloc_xfer_entry_ctx(ep, rx_entry,
@@ -557,8 +561,8 @@ static int sm2_progress_recv_msg(struct sm2_ep *ep,
 			goto out;
 		}
 	} else {
-		ret = peer_srx->owner_ops->get_msg(
-			peer_srx, addr, xfer_entry->hdr.size, &rx_entry);
+		match.size = xfer_entry->hdr.size;
+		ret = peer_srx->owner_ops->get_msg(peer_srx, &match, &rx_entry);
 		if (ret == -FI_ENOENT) {
 			xfer_entry->hdr.proto_flags |= SM2_UNEXP;
 			ret = sm2_alloc_xfer_entry_ctx(ep, rx_entry,
diff --git a/prov/util/src/util_attr.c b/prov/util/src/util_attr.c
index 1665e2e5f1a..8a2b91b5955 100644
--- a/prov/util/src/util_attr.c
+++ b/prov/util/src/util_attr.c
@@ -406,6 +406,7 @@ int ofi_check_fabric_attr(const struct fi_provider *prov,
 	 * user's hints, if one is specified.
 	 */
 	if (prov_attr->prov_name && user_attr->prov_name &&
+		user_attr->prov_name[0] != '^' &&
 	    !strcasestr(user_attr->prov_name, prov_attr->prov_name)) {
 		FI_INFO(prov, FI_LOG_CORE,
 			"Requesting provider %s, skipping %s\n",
diff --git a/prov/util/src/util_srx.c b/prov/util/src/util_srx.c
index 6911acb9755..7c49af516c4 100644
--- a/prov/util/src/util_srx.c
+++ b/prov/util/src/util_srx.c
@@ -194,12 +194,15 @@ static int util_match_msg(struct fid_peer_srx *srx, fi_addr_t addr, size_t size,
 	return ret;
 }
 
-static int util_get_msg(struct fid_peer_srx *srx, fi_addr_t addr,
-		        size_t size, struct fi_peer_rx_entry **rx_entry)
+static int util_get_msg(struct fid_peer_srx *srx,
+			struct fi_peer_match *match_info,
+			struct fi_peer_rx_entry **rx_entry)
 {
 	struct util_srx_ctx *srx_ctx;
 	struct util_rx_entry *util_entry, *any_entry;
 	struct slist *queue;
+	fi_addr_t addr = match_info->addr;
+	size_t size = match_info->size;
 
 	srx_ctx = srx->ep_fid.fid.context;
 	assert(ofi_genlock_held(srx_ctx->lock));
@@ -269,14 +272,17 @@ static int util_match_tag(struct fid_peer_srx *srx, fi_addr_t addr,
 	return ret;
 }
 
-static int util_get_tag(struct fid_peer_srx *srx, fi_addr_t addr,
-			uint64_t tag, struct fi_peer_rx_entry **rx_entry)
+static int util_get_tag(struct fid_peer_srx *srx,
+			struct fi_peer_match *match_info,
+			struct fi_peer_rx_entry **rx_entry)
 {
 	struct util_srx_ctx *srx_ctx;
 	struct slist *queue;
 	struct slist_entry *any_item, *any_prev;
 	struct slist_entry *item, *prev;
 	struct util_rx_entry *util_entry, *any_entry;
+	uint64_t tag = match_info->tag;
+	fi_addr_t addr = match_info->addr;
 	int ret = FI_SUCCESS;
 
 	srx_ctx = srx->ep_fid.fid.context;
diff --git a/src/fi_tostr.c b/src/fi_tostr.c
index 9cc20e4f4d7..67e03151007 100644
--- a/src/fi_tostr.c
+++ b/src/fi_tostr.c
@@ -227,6 +227,7 @@ static void ofi_tostr_caps(char *buf, size_t len, uint64_t caps)
 	IFFLAGSTRN(caps, FI_NAMED_RX_CTX, len);
 	IFFLAGSTRN(caps, FI_DIRECTED_RECV, len);
 	IFFLAGSTRN(caps, FI_HMEM, len);
+	IFFLAGSTRN(caps, FI_PEER, len);
 
 	ofi_remove_comma(buf);
 }