core: Cleanup FI_ORDER flags

Remove FI_ORDER_NONE (flag that's 0) and FI_ORDER_STRICT (which isn't a
flag, and covers only a portion of the valid flags).

Remove FI_ORDER_DATA, which will not be supported by version 2 in
order to allow for greater provider optimization.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com>

fabtests/unit/getinfo_test.c

@@ -181,8 +181,7 @@ static int validate_tx_ordering_bits(char *node, char *service, uint64_t flags,
 		struct fi_info *hints, struct fi_info **info)
 {
 	return validate_bit_combos(node, service, flags, hints, info,
-				   FI_ORDER_STRICT | FI_ORDER_DATA,
-				   init_tx_order, check_tx_order);
+				   ~0ULL, init_tx_order, check_tx_order);
 }
 
 static int init_rx_order(struct fi_info *hints, uint64_t order)
@@ -200,8 +199,7 @@ static int validate_rx_ordering_bits(char *node, char *service, uint64_t flags,
 		struct fi_info *hints, struct fi_info **info)
 {
 	return validate_bit_combos(node, service, flags, hints, info,
-				   FI_ORDER_STRICT | FI_ORDER_DATA,
-				   init_rx_order, check_rx_order);
+				   ~0ULL, init_rx_order, check_rx_order);
 }
 
 static int init_caps(struct fi_info *hints, uint64_t bits)

include/rdma/fabric.h

@@ -261,7 +261,7 @@ enum fi_resource_mgmt {
 	FI_RM_ENABLED
 };
 
-#define FI_ORDER_NONE		0ULL
+/* #define FI_ORDER_NONE		0ULL */
 #define FI_ORDER_RAR		(1ULL << 0)
 #define FI_ORDER_RAW		(1ULL << 1)
 #define FI_ORDER_RAS		(1ULL << 2)
@@ -271,7 +271,7 @@ enum fi_resource_mgmt {
 #define FI_ORDER_SAR		(1ULL << 6)
 #define FI_ORDER_SAW		(1ULL << 7)
 #define FI_ORDER_SAS		(1ULL << 8)
-#define FI_ORDER_STRICT		0x1FF
+/* #define FI_ORDER_STRICT		0x1FF */
 
 #define FI_ORDER_RMA_RAR	(1ULL << 32)
 #define FI_ORDER_RMA_RAW	(1ULL << 33)
@@ -282,7 +282,7 @@ enum fi_resource_mgmt {
 #define FI_ORDER_ATOMIC_WAR	(1ULL << 38)
 #define FI_ORDER_ATOMIC_WAW	(1ULL << 39)
 
-#define FI_ORDER_DATA		(1ULL << 16)
+/* #define FI_ORDER_DATA		(1ULL << 16) */
 
 enum fi_ep_type {
 	FI_EP_UNSPEC,

man/fi_endpoint.3.md

@@ -984,11 +984,6 @@ transfer operation in order to guarantee that ordering is met.
   update operations.  If not atomic updates may be
   transmitted out of order from their submission.
 
-*FI_ORDER_NONE*
-: No ordering is specified.  This value may be used as input in order
-  to obtain the default message order supported by the provider. FI_ORDER_NONE
-  is an alias for the value 0.
-
 *FI_ORDER_RAR*
 : Read after read.  If set, RMA and atomic read operations are
   transmitted in the order submitted relative to other
@@ -1230,7 +1225,7 @@ that messages will be handled in order based on a message level sequence
 number.
 
 The following ordering flags, as defined for transmit ordering, also
-apply to the processing of received operations: FI_ORDER_NONE,
+apply to the processing of received operations:
 FI_ORDER_RAR, FI_ORDER_RAW, FI_ORDER_RAS, FI_ORDER_WAR, FI_ORDER_WAW,
 FI_ORDER_WAS, FI_ORDER_SAR, FI_ORDER_SAW, FI_ORDER_SAS, FI_ORDER_RMA_RAR,
 FI_ORDER_RMA_RAW, FI_ORDER_RMA_WAR, FI_ORDER_RMA_WAW, FI_ORDER_ATOMIC_RAR,
@@ -1526,7 +1521,7 @@ can return provider info structures that can support the minimal set
 of requirements (such that the application maintains correctness).
 However, it can also return provider info structures that exceed
 application requirements. As an example, consider an application
-requesting msg_order as FI_ORDER_NONE. The resulting output from
+requesting no msg_order. The resulting output from
 fi_getinfo may have all the ordering bits set. The application can reset
 the ordering bits it does not require before creating the endpoint.
 The provider is free to implement a stricter ordering than is

man/fi_verbs.7.md

@@ -93,11 +93,6 @@ Verbs provider support the following message ordering:
 
   * Send after Send
 
-and the following completion ordering:
-
-  * TX contexts: FI_ORDER_STRICT
-  * RX contexts: FI_ORDER_DATA
-
 ### Fork
 Verbs provider does not provide fork safety by default. Fork safety can be requested
 by setting IBV_FORK_SAFE, or RDMAV_FORK_SAFE. If the system configuration supports

prov/efa/src/efa_prov_info.c

@@ -26,7 +26,7 @@
 #define EFA_RX_RDM_OP_FLAGS (0)
 #define EFA_RX_DGRM_OP_FLAGS (0)
 
-#define EFA_MSG_ORDER (FI_ORDER_NONE)
+#define EFA_MSG_ORDER (0)
 
 #define EFA_NO_DEFAULT -1
 

prov/usnic/src/usdf_dgram.h

@@ -43,8 +43,7 @@
 
 #define USDF_DGRAM_SUPP_MODE (FI_MSG_PREFIX)
 
-#define USDF_DGRAM_MSG_ORDER (FI_ORDER_NONE)
-#define USDF_DGRAM_COMP_ORDER (FI_ORDER_NONE)
+#define USDF_DGRAM_MSG_ORDER (0)
 #define USDF_DGRAM_INJECT_SIZE                                                 \
 	(USD_SEND_MAX_COPY - sizeof(struct usd_udp_hdr))
 #define USDF_DGRAM_SUPP_SENDMSG_FLAGS                                          \