[dpdk-dev] [PATCH v6 09/25] mlx5: update prerequisites for upcoming enhancements

[Nelio Laranjeiro <nelio.laranjeiro@6wind.com>]

The latest version of Mellanox OFED exposes hardware definitions necessary
to implement data path operation bypassing Verbs. Update the minimum
version requirement to MLNX_OFED >= 3.3 and clean up compatibility checks
for previous releases.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 doc/guides/nics/mlx5.rst       | 44 +++---------------------------------------
 drivers/net/mlx5/Makefile      | 39 ++++++++-----------------------------
 drivers/net/mlx5/mlx5.c        | 23 ----------------------
 drivers/net/mlx5/mlx5.h        |  5 +++++
 drivers/net/mlx5/mlx5_defs.h   |  9 ---------
 drivers/net/mlx5/mlx5_fdir.c   | 10 ----------
 drivers/net/mlx5/mlx5_rxmode.c |  8 --------
 drivers/net/mlx5/mlx5_rxq.c    | 30 ----------------------------
 drivers/net/mlx5/mlx5_rxtx.c   |  4 ----
 drivers/net/mlx5/mlx5_rxtx.h   |  8 --------
 drivers/net/mlx5/mlx5_txq.c    |  2 --
 drivers/net/mlx5/mlx5_vlan.c   |  3 ---
 12 files changed, 16 insertions(+), 169 deletions(-)

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 77fa957..3a07928 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -125,16 +125,6 @@ These options can be modified in the ``.config`` file.
 Environment variables
 ~~~~~~~~~~~~~~~~~~~~~
 
-- ``MLX5_ENABLE_CQE_COMPRESSION``
-
-  A nonzero value lets ConnectX-4 return smaller completion entries to
-  improve performance when PCI backpressure is detected. It is most useful
-  for scenarios involving heavy traffic on many queues.
-
-  Since the additional software logic necessary to handle this mode can
-  lower performance when there is no backpressure, it is not enabled by
-  default.
-
 - ``MLX5_PMD_ENABLE_PADDING``
 
   Enables HW packet padding in PCI bus transactions.
@@ -211,40 +201,12 @@ DPDK and must be installed separately:
 
 Currently supported by DPDK:
 
-- Mellanox OFED **3.1-1.0.3**, **3.1-1.5.7.1** or **3.2-2.0.0.0** depending
-  on usage.
-
-    The following features are supported with version **3.1-1.5.7.1** and
-    above only:
-
-    - IPv6, UPDv6, TCPv6 RSS.
-    - RX checksum offloads.
-    - IBM POWER8.
-
-    The following features are supported with version **3.2-2.0.0.0** and
-    above only:
-
-    - Flow director.
-    - RX VLAN stripping.
-    - TX VLAN insertion.
-    - RX CRC stripping configuration.
+- Mellanox OFED **3.3-1.0.0.0**.
 
 - Minimum firmware version:
 
-  With MLNX_OFED **3.1-1.0.3**:
-
-  - ConnectX-4: **12.12.1240**
-  - ConnectX-4 Lx: **14.12.1100**
-
-  With MLNX_OFED **3.1-1.5.7.1**:
-
-  - ConnectX-4: **12.13.0144**
-  - ConnectX-4 Lx: **14.13.0144**
-
-  With MLNX_OFED **3.2-2.0.0.0**:
-
-  - ConnectX-4: **12.14.2036**
-  - ConnectX-4 Lx: **14.14.2036**
+  - ConnectX-4: **12.16.1006**
+  - ConnectX-4 Lx: **14.16.1006**
 
 Getting Mellanox OFED
 ~~~~~~~~~~~~~~~~~~~~~
diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index 289c85e..dc99797 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -106,42 +106,19 @@ mlx5_autoconf.h.new: FORCE
 mlx5_autoconf.h.new: $(RTE_SDK)/scripts/auto-config-h.sh
 	$Q $(RM) -f -- '$@'
 	$Q sh -- '$<' '$@' \
-		HAVE_EXP_QUERY_DEVICE \
-		infiniband/verbs.h \
-		type 'struct ibv_exp_device_attr' $(AUTOCONF_OUTPUT)
-	$Q sh -- '$<' '$@' \
-		HAVE_FLOW_SPEC_IPV6 \
-		infiniband/verbs.h \
-		type 'struct ibv_exp_flow_spec_ipv6' $(AUTOCONF_OUTPUT)
-	$Q sh -- '$<' '$@' \
-		HAVE_EXP_QP_BURST_CREATE_ENABLE_MULTI_PACKET_SEND_WR \
-		infiniband/verbs.h \
-		enum IBV_EXP_QP_BURST_CREATE_ENABLE_MULTI_PACKET_SEND_WR \
-		$(AUTOCONF_OUTPUT)
-	$Q sh -- '$<' '$@' \
-		HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS \
-		infiniband/verbs.h \
-		enum IBV_EXP_DEVICE_ATTR_VLAN_OFFLOADS \
-		$(AUTOCONF_OUTPUT)
-	$Q sh -- '$<' '$@' \
-		HAVE_EXP_CQ_RX_TCP_PACKET \
+		HAVE_VERBS_VLAN_INSERTION \
 		infiniband/verbs.h \
-		enum IBV_EXP_CQ_RX_TCP_PACKET \
+		enum IBV_EXP_RECEIVE_WQ_CVLAN_INSERTION \
 		$(AUTOCONF_OUTPUT)
 	$Q sh -- '$<' '$@' \
-		HAVE_VERBS_FCS \
-		infiniband/verbs.h \
-		enum IBV_EXP_CREATE_WQ_FLAG_SCATTER_FCS \
+		HAVE_VERBS_IBV_EXP_CQ_COMPRESSED_CQE \
+		infiniband/verbs_exp.h \
+		enum IBV_EXP_CQ_COMPRESSED_CQE \
 		$(AUTOCONF_OUTPUT)
 	$Q sh -- '$<' '$@' \
-		HAVE_VERBS_RX_END_PADDING \
-		infiniband/verbs.h \
-		enum IBV_EXP_CREATE_WQ_FLAG_RX_END_PADDING \
-		$(AUTOCONF_OUTPUT)
-	$Q sh -- '$<' '$@' \
-		HAVE_VERBS_VLAN_INSERTION \
-		infiniband/verbs.h \
-		enum IBV_EXP_RECEIVE_WQ_CVLAN_INSERTION \
+		HAVE_VERBS_MLX5_ETH_VLAN_INLINE_HEADER_SIZE \
+		infiniband/mlx5_hw.h \
+		enum MLX5_ETH_VLAN_INLINE_HEADER_SIZE \
 		$(AUTOCONF_OUTPUT)
 
 # Create mlx5_autoconf.h or update it in case it differs from the new one.
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 27a7a30..3f45d84 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -195,17 +195,13 @@ static const struct eth_dev_ops mlx5_dev_ops = {
 	.mac_addr_add = mlx5_mac_addr_add,
 	.mac_addr_set = mlx5_mac_addr_set,
 	.mtu_set = mlx5_dev_set_mtu,
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 	.vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
 	.vlan_offload_set = mlx5_vlan_offload_set,
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 	.reta_update = mlx5_dev_rss_reta_update,
 	.reta_query = mlx5_dev_rss_reta_query,
 	.rss_hash_update = mlx5_rss_hash_update,
 	.rss_hash_conf_get = mlx5_rss_hash_conf_get,
-#ifdef MLX5_FDIR_SUPPORT
 	.filter_ctrl = mlx5_dev_filter_ctrl,
-#endif /* MLX5_FDIR_SUPPORT */
 };
 
 static struct {
@@ -352,24 +348,16 @@ mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		struct ibv_pd *pd = NULL;
 		struct priv *priv = NULL;
 		struct rte_eth_dev *eth_dev;
-#ifdef HAVE_EXP_QUERY_DEVICE
 		struct ibv_exp_device_attr exp_device_attr;
-#endif /* HAVE_EXP_QUERY_DEVICE */
 		struct ether_addr mac;
 		uint16_t num_vfs = 0;
 
-#ifdef HAVE_EXP_QUERY_DEVICE
 		exp_device_attr.comp_mask =
 			IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS |
 			IBV_EXP_DEVICE_ATTR_RX_HASH |
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 			IBV_EXP_DEVICE_ATTR_VLAN_OFFLOADS |
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
-#ifdef HAVE_VERBS_RX_END_PADDING
 			IBV_EXP_DEVICE_ATTR_RX_PAD_END_ALIGN |
-#endif /* HAVE_VERBS_RX_END_PADDING */
 			0;
-#endif /* HAVE_EXP_QUERY_DEVICE */
 
 		DEBUG("using port %u (%08" PRIx32 ")", port, test);
 
@@ -420,7 +408,6 @@ mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		priv->port = port;
 		priv->pd = pd;
 		priv->mtu = ETHER_MTU;
-#ifdef HAVE_EXP_QUERY_DEVICE
 		if (ibv_exp_query_device(ctx, &exp_device_attr)) {
 			ERROR("ibv_exp_query_device() failed");
 			goto port_error;
@@ -446,30 +433,20 @@ mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 			priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 		DEBUG("maximum RX indirection table size is %u",
 		      priv->ind_table_max_size);
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 		priv->hw_vlan_strip = !!(exp_device_attr.wq_vlan_offloads_cap &
 					 IBV_EXP_RECEIVE_WQ_CVLAN_STRIP);
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 		DEBUG("VLAN stripping is %ssupported",
 		      (priv->hw_vlan_strip ? "" : "not "));
 
-#ifdef HAVE_VERBS_FCS
 		priv->hw_fcs_strip = !!(exp_device_attr.exp_device_cap_flags &
 					IBV_EXP_DEVICE_SCATTER_FCS);
-#endif /* HAVE_VERBS_FCS */
 		DEBUG("FCS stripping configuration is %ssupported",
 		      (priv->hw_fcs_strip ? "" : "not "));
 
-#ifdef HAVE_VERBS_RX_END_PADDING
 		priv->hw_padding = !!exp_device_attr.rx_pad_end_addr_align;
-#endif /* HAVE_VERBS_RX_END_PADDING */
 		DEBUG("hardware RX end alignment padding is %ssupported",
 		      (priv->hw_padding ? "" : "not "));
 
-#else /* HAVE_EXP_QUERY_DEVICE */
-		priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
-#endif /* HAVE_EXP_QUERY_DEVICE */
-
 		priv_get_num_vfs(priv, &num_vfs);
 		priv->sriov = (num_vfs || sriov);
 		priv->mps = mps;
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index cbcb8b9..935e1b0 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -68,6 +68,11 @@
 #include "mlx5_autoconf.h"
 #include "mlx5_defs.h"
 
+#if !defined(HAVE_VERBS_IBV_EXP_CQ_COMPRESSED_CQE) || \
+	!defined(HAVE_VERBS_MLX5_ETH_VLAN_INLINE_HEADER_SIZE)
+#error Mellanox OFED >= 3.3 is required, please refer to the documentation.
+#endif
+
 enum {
 	PCI_VENDOR_ID_MELLANOX = 0x15b3,
 };
diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index 9a19835..8d2ec7a 100644
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -76,13 +76,4 @@
 /* Alarm timeout. */
 #define MLX5_ALARM_TIMEOUT_US 100000
 
-/*
- * Extended flow priorities necessary to support flow director are available
- * since MLNX_OFED 3.2. Considering this version adds support for VLAN
- * offloads as well, their availability means flow director can be used.
- */
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
-#define MLX5_FDIR_SUPPORT 1
-#endif
-
 #endif /* RTE_PMD_MLX5_DEFS_H_ */
diff --git a/drivers/net/mlx5/mlx5_fdir.c b/drivers/net/mlx5/mlx5_fdir.c
index e3b97ba..1850218 100644
--- a/drivers/net/mlx5/mlx5_fdir.c
+++ b/drivers/net/mlx5/mlx5_fdir.c
@@ -122,7 +122,6 @@ fdir_filter_to_flow_desc(const struct rte_eth_fdir_filter *fdir_filter,
 	case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
 		desc->type = HASH_RXQ_IPV4;
 		break;
-#ifdef HAVE_FLOW_SPEC_IPV6
 	case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
 		desc->type = HASH_RXQ_UDPV6;
 		break;
@@ -132,7 +131,6 @@ fdir_filter_to_flow_desc(const struct rte_eth_fdir_filter *fdir_filter,
 	case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
 		desc->type = HASH_RXQ_IPV6;
 		break;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	default:
 		break;
 	}
@@ -147,7 +145,6 @@ fdir_filter_to_flow_desc(const struct rte_eth_fdir_filter *fdir_filter,
 		desc->src_ip[0] = fdir_filter->input.flow.ip4_flow.src_ip;
 		desc->dst_ip[0] = fdir_filter->input.flow.ip4_flow.dst_ip;
 		break;
-#ifdef HAVE_FLOW_SPEC_IPV6
 	case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
 	case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
 		desc->src_port = fdir_filter->input.flow.udp6_flow.src_port;
@@ -161,7 +158,6 @@ fdir_filter_to_flow_desc(const struct rte_eth_fdir_filter *fdir_filter,
 			   fdir_filter->input.flow.ipv6_flow.dst_ip,
 			   sizeof(desc->dst_ip));
 		break;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	default:
 		break;
 	}
@@ -211,7 +207,6 @@ priv_fdir_overlap(const struct priv *priv,
 		     (desc2->dst_ip[0] & mask->ipv4_mask.dst_ip)))
 			return 0;
 		break;
-#ifdef HAVE_FLOW_SPEC_IPV6
 	case HASH_RXQ_IPV6:
 	case HASH_RXQ_UDPV6:
 	case HASH_RXQ_TCPV6:
@@ -222,7 +217,6 @@ priv_fdir_overlap(const struct priv *priv,
 			     (desc2->dst_ip[i] & mask->ipv6_mask.dst_ip[i])))
 				return 0;
 		break;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	default:
 		break;
 	}
@@ -258,9 +252,7 @@ priv_fdir_flow_add(struct priv *priv,
 	uintptr_t spec_offset = (uintptr_t)&data->spec;
 	struct ibv_exp_flow_spec_eth *spec_eth;
 	struct ibv_exp_flow_spec_ipv4 *spec_ipv4;
-#ifdef HAVE_FLOW_SPEC_IPV6
 	struct ibv_exp_flow_spec_ipv6 *spec_ipv6;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	struct ibv_exp_flow_spec_tcp_udp *spec_tcp_udp;
 	struct mlx5_fdir_filter *iter_fdir_filter;
 	unsigned int i;
@@ -334,7 +326,6 @@ priv_fdir_flow_add(struct priv *priv,
 
 		spec_offset += spec_ipv4->size;
 		break;
-#ifdef HAVE_FLOW_SPEC_IPV6
 	case HASH_RXQ_IPV6:
 	case HASH_RXQ_UDPV6:
 	case HASH_RXQ_TCPV6:
@@ -368,7 +359,6 @@ priv_fdir_flow_add(struct priv *priv,
 
 		spec_offset += spec_ipv6->size;
 		break;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	default:
 		ERROR("invalid flow attribute type");
 		return EINVAL;
diff --git a/drivers/net/mlx5/mlx5_rxmode.c b/drivers/net/mlx5/mlx5_rxmode.c
index 3a55f63..51e2aca 100644
--- a/drivers/net/mlx5/mlx5_rxmode.c
+++ b/drivers/net/mlx5/mlx5_rxmode.c
@@ -67,11 +67,9 @@ static const struct special_flow_init special_flow_init[] = {
 			1 << HASH_RXQ_TCPV4 |
 			1 << HASH_RXQ_UDPV4 |
 			1 << HASH_RXQ_IPV4 |
-#ifdef HAVE_FLOW_SPEC_IPV6
 			1 << HASH_RXQ_TCPV6 |
 			1 << HASH_RXQ_UDPV6 |
 			1 << HASH_RXQ_IPV6 |
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 			1 << HASH_RXQ_ETH |
 			0,
 		.per_vlan = 0,
@@ -82,10 +80,8 @@ static const struct special_flow_init special_flow_init[] = {
 		.hash_types =
 			1 << HASH_RXQ_UDPV4 |
 			1 << HASH_RXQ_IPV4 |
-#ifdef HAVE_FLOW_SPEC_IPV6
 			1 << HASH_RXQ_UDPV6 |
 			1 << HASH_RXQ_IPV6 |
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 			1 << HASH_RXQ_ETH |
 			0,
 		.per_vlan = 0,
@@ -96,15 +92,12 @@ static const struct special_flow_init special_flow_init[] = {
 		.hash_types =
 			1 << HASH_RXQ_UDPV4 |
 			1 << HASH_RXQ_IPV4 |
-#ifdef HAVE_FLOW_SPEC_IPV6
 			1 << HASH_RXQ_UDPV6 |
 			1 << HASH_RXQ_IPV6 |
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 			1 << HASH_RXQ_ETH |
 			0,
 		.per_vlan = 1,
 	},
-#ifdef HAVE_FLOW_SPEC_IPV6
 	[HASH_RXQ_FLOW_TYPE_IPV6MULTI] = {
 		.dst_mac_val = "\x33\x33\x00\x00\x00\x00",
 		.dst_mac_mask = "\xff\xff\x00\x00\x00\x00",
@@ -115,7 +108,6 @@ static const struct special_flow_init special_flow_init[] = {
 			0,
 		.per_vlan = 1,
 	},
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 };
 
 /**
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 05b7c91..b474a18 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -105,7 +105,6 @@ const struct hash_rxq_init hash_rxq_init[] = {
 		},
 		.underlayer = &hash_rxq_init[HASH_RXQ_ETH],
 	},
-#ifdef HAVE_FLOW_SPEC_IPV6
 	[HASH_RXQ_TCPV6] = {
 		.hash_fields = (IBV_EXP_RX_HASH_SRC_IPV6 |
 				IBV_EXP_RX_HASH_DST_IPV6 |
@@ -144,7 +143,6 @@ const struct hash_rxq_init hash_rxq_init[] = {
 		},
 		.underlayer = &hash_rxq_init[HASH_RXQ_ETH],
 	},
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	[HASH_RXQ_ETH] = {
 		.hash_fields = 0,
 		.dpdk_rss_hf = 0,
@@ -168,17 +166,11 @@ static const struct ind_table_init ind_table_init[] = {
 			1 << HASH_RXQ_TCPV4 |
 			1 << HASH_RXQ_UDPV4 |
 			1 << HASH_RXQ_IPV4 |
-#ifdef HAVE_FLOW_SPEC_IPV6
 			1 << HASH_RXQ_TCPV6 |
 			1 << HASH_RXQ_UDPV6 |
 			1 << HASH_RXQ_IPV6 |
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 			0,
-#ifdef HAVE_FLOW_SPEC_IPV6
 		.hash_types_n = 6,
-#else /* HAVE_FLOW_SPEC_IPV6 */
-		.hash_types_n = 3,
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	},
 	{
 		.max_size = 1,
@@ -243,12 +235,8 @@ priv_flow_attr(struct priv *priv, struct ibv_exp_flow_attr *flow_attr,
 	init = &hash_rxq_init[type];
 	*flow_attr = (struct ibv_exp_flow_attr){
 		.type = IBV_EXP_FLOW_ATTR_NORMAL,
-#ifdef MLX5_FDIR_SUPPORT
 		/* Priorities < 3 are reserved for flow director. */
 		.priority = init->flow_priority + 3,
-#else /* MLX5_FDIR_SUPPORT */
-		.priority = init->flow_priority,
-#endif /* MLX5_FDIR_SUPPORT */
 		.num_of_specs = 0,
 		.port = priv->port,
 		.flags = 0,
@@ -589,9 +577,7 @@ priv_allow_flow_type(struct priv *priv, enum hash_rxq_flow_type type)
 	case HASH_RXQ_FLOW_TYPE_ALLMULTI:
 		return !!priv->allmulti_req;
 	case HASH_RXQ_FLOW_TYPE_BROADCAST:
-#ifdef HAVE_FLOW_SPEC_IPV6
 	case HASH_RXQ_FLOW_TYPE_IPV6MULTI:
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 		/* If allmulti is enabled, broadcast and ipv6multi
 		 * are unnecessary. */
 		return !priv->allmulti_req;
@@ -1040,19 +1026,13 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl, uint16_t desc,
 		.cq = tmpl.rxq.cq,
 		.comp_mask =
 			IBV_EXP_CREATE_WQ_RES_DOMAIN |
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 			IBV_EXP_CREATE_WQ_VLAN_OFFLOADS |
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 			0,
 		.res_domain = tmpl.rd,
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 		.vlan_offloads = (tmpl.rxq.vlan_strip ?
 				  IBV_EXP_RECEIVE_WQ_CVLAN_STRIP :
 				  0),
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 	};
-
-#ifdef HAVE_VERBS_FCS
 	/* By default, FCS (CRC) is stripped by hardware. */
 	if (dev->data->dev_conf.rxmode.hw_strip_crc) {
 		tmpl.rxq.crc_present = 0;
@@ -1073,9 +1053,6 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl, uint16_t desc,
 	      (void *)dev,
 	      tmpl.rxq.crc_present ? "disabled" : "enabled",
 	      tmpl.rxq.crc_present << 2);
-#endif /* HAVE_VERBS_FCS */
-
-#ifdef HAVE_VERBS_RX_END_PADDING
 	if (!mlx5_getenv_int("MLX5_PMD_ENABLE_PADDING"))
 		; /* Nothing else to do. */
 	else if (priv->hw_padding) {
@@ -1088,7 +1065,6 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl, uint16_t desc,
 		     " supported, make sure MLNX_OFED and firmware are"
 		     " up to date",
 		     (void *)dev);
-#endif /* HAVE_VERBS_RX_END_PADDING */
 
 	tmpl.rxq.wq = ibv_exp_create_wq(priv->ctx, &attr.wq);
 	if (tmpl.rxq.wq == NULL) {
@@ -1108,9 +1084,7 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl, uint16_t desc,
 	DEBUG("%p: RTE port ID: %u", (void *)rxq_ctrl, tmpl.rxq.port_id);
 	attr.params = (struct ibv_exp_query_intf_params){
 		.intf_scope = IBV_EXP_INTF_GLOBAL,
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 		.intf_version = 1,
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 		.intf = IBV_EXP_INTF_CQ,
 		.obj = tmpl.rxq.cq,
 	};
@@ -1166,11 +1140,7 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq_ctrl *rxq_ctrl, uint16_t desc,
 	DEBUG("%p: rxq updated with %p", (void *)rxq_ctrl, (void *)&tmpl);
 	assert(ret == 0);
 	/* Assign function in queue. */
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 	rxq_ctrl->rxq.poll = rxq_ctrl->if_cq->poll_length_flags_cvlan;
-#else /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
-	rxq_ctrl->rxq.poll = rxq_ctrl->if_cq->poll_length_flags;
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 	rxq_ctrl->rxq.recv = rxq_ctrl->if_wq->recv_burst;
 	return 0;
 error:
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index f0b42e9..6a0d707 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -452,11 +452,9 @@ rxq_cq_to_ol_flags(const struct rxq *rxq, uint32_t flags)
 				TRANSPOSE(~flags,
 					IBV_EXP_CQ_RX_IP_CSUM_OK,
 					PKT_RX_IP_CKSUM_BAD);
-#ifdef HAVE_EXP_CQ_RX_TCP_PACKET
 		/* Set L4 checksum flag only for TCP/UDP packets. */
 		if (flags &
 		    (IBV_EXP_CQ_RX_TCP_PACKET | IBV_EXP_CQ_RX_UDP_PACKET))
-#endif /* HAVE_EXP_CQ_RX_TCP_PACKET */
 			ol_flags |=
 				TRANSPOSE(~flags,
 					IBV_EXP_CQ_RX_TCP_UDP_CSUM_OK,
@@ -589,12 +587,10 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
 		if (rxq->csum | rxq->csum_l2tun | rxq->vlan_strip) {
 			seg->packet_type = rxq_cq_to_pkt_type(flags);
 			seg->ol_flags = rxq_cq_to_ol_flags(rxq, flags);
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 			if (flags & IBV_EXP_CQ_RX_CVLAN_STRIPPED_V1) {
 				seg->ol_flags |= PKT_RX_VLAN_PKT;
 				seg->vlan_tci = vlan_tci;
 			}
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 		}
 		/* Return packet. */
 		*(pkts++) = seg;
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 2c5e447..570345b 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -120,11 +120,7 @@ struct rxq_ctrl {
 	struct fdir_queue fdir_queue; /* Flow director queue. */
 	struct ibv_mr *mr; /* Memory Region (for mp). */
 	struct ibv_exp_wq_family *if_wq; /* WQ burst interface. */
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 	struct ibv_exp_cq_family_v1 *if_cq; /* CQ interface. */
-#else /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
-	struct ibv_exp_cq_family *if_cq; /* CQ interface. */
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 	unsigned int socket; /* CPU socket ID for allocations. */
 	struct rxq rxq; /* Data path structure. */
 };
@@ -134,11 +130,9 @@ enum hash_rxq_type {
 	HASH_RXQ_TCPV4,
 	HASH_RXQ_UDPV4,
 	HASH_RXQ_IPV4,
-#ifdef HAVE_FLOW_SPEC_IPV6
 	HASH_RXQ_TCPV6,
 	HASH_RXQ_UDPV6,
 	HASH_RXQ_IPV6,
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 	HASH_RXQ_ETH,
 };
 
@@ -169,9 +163,7 @@ struct hash_rxq_init {
 		} hdr;
 		struct ibv_exp_flow_spec_tcp_udp tcp_udp;
 		struct ibv_exp_flow_spec_ipv4 ipv4;
-#ifdef HAVE_FLOW_SPEC_IPV6
 		struct ibv_exp_flow_spec_ipv6 ipv6;
-#endif /* HAVE_FLOW_SPEC_IPV6 */
 		struct ibv_exp_flow_spec_eth eth;
 	} flow_spec; /* Flow specification template. */
 	const struct hash_rxq_init *underlayer; /* Pointer to underlayer. */
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 7626291..51210f2 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -376,13 +376,11 @@ txq_setup(struct rte_eth_dev *dev, struct txq_ctrl *txq_ctrl, uint16_t desc,
 #ifdef HAVE_VERBS_VLAN_INSERTION
 		.intf_version = 1,
 #endif
-#ifdef HAVE_EXP_QP_BURST_CREATE_ENABLE_MULTI_PACKET_SEND_WR
 		/* Enable multi-packet send if supported. */
 		.family_flags =
 			(priv->mps ?
 			 IBV_EXP_QP_BURST_CREATE_ENABLE_MULTI_PACKET_SEND_WR :
 			 0),
-#endif
 	};
 	tmpl.if_qp = ibv_exp_query_intf(priv->ctx, &attr.params, &status);
 	if (tmpl.if_qp == NULL) {
diff --git a/drivers/net/mlx5/mlx5_vlan.c b/drivers/net/mlx5/mlx5_vlan.c
index ff40538..3b9b771 100644
--- a/drivers/net/mlx5/mlx5_vlan.c
+++ b/drivers/net/mlx5/mlx5_vlan.c
@@ -144,7 +144,6 @@ static void
 priv_vlan_strip_queue_set(struct priv *priv, uint16_t idx, int on)
 {
 	struct rxq *rxq = (*priv->rxqs)[idx];
-#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 	struct ibv_exp_wq_attr mod;
 	uint16_t vlan_offloads =
 		(on ? IBV_EXP_RECEIVE_WQ_CVLAN_STRIP : 0) |
@@ -165,8 +164,6 @@ priv_vlan_strip_queue_set(struct priv *priv, uint16_t idx, int on)
 		return;
 	}
 
-#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
-
 	/* Update related bits in RX queue. */
 	rxq->vlan_strip = !!on;
 }
-- 
2.1.4