Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "A smaller cycle this time. Notably we see another new driver, 'Soft
  iWarp', and the deletion of an ancient unused driver for nes.

   - Revise and simplify the signature offload RDMA MR APIs

   - More progress on hoisting object allocation boiler plate code out
     of the drivers

   - Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib,
     i40iw

   - Tree wide cleanups: struct_size, put_user_page, xarray, rst doc
     conversion

   - Removal of obsolete ib_ucm chardev and nes driver

   - netlink based discovery of chardevs and autoloading of the modules
     providing them

   - Move more of the rdamvt/hfi1 uapi to include/uapi/rdma

   - New driver 'siw' for software based iWarp running on top of netdev,
     much like rxe's software RoCE.

   - mlx5 feature to report events in their raw devx format to userspace

   - Expose per-object counters through rdma tool

   - Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
     from netdev"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (194 commits)
  RMDA/siw: Require a 64 bit arch
  RDMA/siw: Mark expected switch fall-throughs
  RDMA/core: Fix -Wunused-const-variable warnings
  rdma/siw: Remove set but not used variable 's'
  rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
  RDMA/siw: Add missing rtnl_lock around access to ifa
  rdma/siw: Use proper enumerated type in map_cqe_status
  RDMA/siw: Remove unnecessary kthread create/destroy printouts
  IB/rdmavt: Fix variable shadowing issue in rvt_create_cq
  RDMA/core: Fix race when resolving IP address
  RDMA/core: Make rdma_counter.h compile stand alone
  IB/core: Work on the caller socket net namespace in nldev_newlink()
  RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
  RDMA/mlx5: Set RDMA DIM to be enabled by default
  RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
  RDMA/core: Provide RDMA DIM support for ULPs
  linux/dim: Implement RDMA adaptive moderation (DIM)
  IB/mlx5: Report correctly tag matching rendezvous capability
  docs: infiniband: add it to the driver-api bookset
  IB/mlx5: Implement VHCA tunnel mechanism in DEVX
  ...

22 files changed, 980 insertions, 588 deletions

diff --git a/include/linux/dim.h b/include/linux/dim.h
index aa9bdd47a64859..d3a0fbfff2bb09 100644
--- a/include/linux/dim.h
+++ b/include/linux/dim.h
@@ -82,6 +82,7 @@ struct dim_stats {
  * @prev_stats: Measured rates from previous iteration (for comparison)
  * @start_sample: Sampled data at start of current iteration
  * @work: Work to perform on action required
+ * @priv: A pointer to the struct that points to dim
  * @profile_ix: Current moderation profile
  * @mode: CQ period count mode
  * @tune_state: Algorithm tuning state (see below)
@@ -95,6 +96,7 @@ struct dim {
 	struct dim_sample start_sample;
 	struct dim_sample measuring_sample;
 	struct work_struct work;
+	void *priv;
 	u8 profile_ix;
 	u8 mode;
 	u8 tune_state;
@@ -363,4 +365,25 @@ struct dim_cq_moder net_dim_get_def_tx_moderation(u8 cq_period_mode);
  */
 void net_dim(struct dim *dim, struct dim_sample end_sample);
 
+/* RDMA DIM */
+
+/*
+ * RDMA DIM profile:
+ * profile size must be of RDMA_DIM_PARAMS_NUM_PROFILES.
+ */
+#define RDMA_DIM_PARAMS_NUM_PROFILES 9
+#define RDMA_DIM_START_PROFILE 0
+
+/**
+ * rdma_dim - Runs the adaptive moderation.
+ * @dim: The moderation struct.
+ * @completions: The number of completions collected in this round.
+ *
+ * Each call to rdma_dim takes the latest amount of completions that
+ * have been collected and counts them as a new event.
+ * Once enough events have been collected the algorithm decides a new
+ * moderation level.
+ */
+void rdma_dim(struct dim *dim, u64 completions);
+
 #endif /* DIM_H */
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 515624c66ce10c..b3d5752657d989 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1391,7 +1391,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8	   reserved_at_6c8[0x28];
 	u8	   sf_base_id[0x10];
 
-	u8	   reserved_at_700[0x100];
+	u8	   reserved_at_700[0x80];
+	u8	   vhca_tunnel_commands[0x40];
+	u8	   reserved_at_7c0[0x40];
 };
 
 enum mlx5_flow_destination_type {
@@ -9695,7 +9697,7 @@ struct mlx5_ifc_general_obj_in_cmd_hdr_bits {
 	u8         opcode[0x10];
 	u8         uid[0x10];
 
-	u8         reserved_at_20[0x10];
+	u8         vhca_tunnel_id[0x10];
 	u8         obj_type[0x10];
 
 	u8         obj_id[0x20];
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 127d224443e360..ae63b1ae90048c 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -37,7 +37,8 @@
 #include <linux/mlx5/driver.h>
 
 #define MLX5_INVALID_LKEY	0x100
-#define MLX5_SIG_WQE_SIZE	(MLX5_SEND_WQE_BB * 5)
+/* UMR (3 WQE_BB's) + SIG (3 WQE_BB's) + PSV (mem) + PSV (wire) */
+#define MLX5_SIG_WQE_SIZE	(MLX5_SEND_WQE_BB * 8)
 #define MLX5_DIF_SIZE		8
 #define MLX5_STRIDE_BLOCK_OP	0x400
 #define MLX5_CPY_GRD_MASK	0xc0
@@ -70,6 +71,7 @@ enum mlx5_qp_optpar {
 	MLX5_QP_OPTPAR_CQN_RCV			= 1 << 19,
 	MLX5_QP_OPTPAR_DC_HS			= 1 << 20,
 	MLX5_QP_OPTPAR_DC_KEY			= 1 << 21,
+	MLX5_QP_OPTPAR_COUNTER_SET_ID		= 1 << 25,
 };
 
 enum mlx5_qp_state {
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 040d853077c601..1052d0d62be7d2 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -46,7 +46,6 @@ struct ib_umem {
 	struct mm_struct       *owning_mm;
 	size_t			length;
 	unsigned long		address;
-	int			page_shift;
 	u32 writable : 1;
 	u32 is_odp : 1;
 	struct work_struct	work;
@@ -58,24 +57,14 @@ struct ib_umem {
 /* Returns the offset of the umem start relative to the first page. */
 static inline int ib_umem_offset(struct ib_umem *umem)
 {
-	return umem->address & (BIT(umem->page_shift) - 1);
-}
-
-/* Returns the first page of an ODP umem. */
-static inline unsigned long ib_umem_start(struct ib_umem *umem)
-{
-	return umem->address - ib_umem_offset(umem);
-}
-
-/* Returns the address of the page after the last one of an ODP umem. */
-static inline unsigned long ib_umem_end(struct ib_umem *umem)
-{
-	return ALIGN(umem->address + umem->length, BIT(umem->page_shift));
+	return umem->address & ~PAGE_MASK;
 }
 
 static inline size_t ib_umem_num_pages(struct ib_umem *umem)
 {
-	return (ib_umem_end(umem) - ib_umem_start(umem)) >> umem->page_shift;
+	return (ALIGN(umem->address + umem->length, PAGE_SIZE) -
+		ALIGN_DOWN(umem->address, PAGE_SIZE)) >>
+	       PAGE_SHIFT;
 }
 
 #ifdef CONFIG_INFINIBAND_USER_MEM
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h
index eeec4e53c4489c..479db5c98ff60f 100644
--- a/include/rdma/ib_umem_odp.h
+++ b/include/rdma/ib_umem_odp.h
@@ -76,6 +76,7 @@ struct ib_umem_odp {
 
 	struct completion	notifier_completion;
 	int			dying;
+	unsigned int		page_shift;
 	struct work_struct	work;
 };
 
@@ -84,6 +85,25 @@ static inline struct ib_umem_odp *to_ib_umem_odp(struct ib_umem *umem)
 	return container_of(umem, struct ib_umem_odp, umem);
 }
 
+/* Returns the first page of an ODP umem. */
+static inline unsigned long ib_umem_start(struct ib_umem_odp *umem_odp)
+{
+	return ALIGN_DOWN(umem_odp->umem.address, 1UL << umem_odp->page_shift);
+}
+
+/* Returns the address of the page after the last one of an ODP umem. */
+static inline unsigned long ib_umem_end(struct ib_umem_odp *umem_odp)
+{
+	return ALIGN(umem_odp->umem.address + umem_odp->umem.length,
+		     1UL << umem_odp->page_shift);
+}
+
+static inline size_t ib_umem_odp_num_pages(struct ib_umem_odp *umem_odp)
+{
+	return (ib_umem_end(umem_odp) - ib_umem_start(umem_odp)) >>
+	       umem_odp->page_shift;
+}
+
 /*
  * The lower 2 bits of the DMA address signal the R/W permissions for
  * the entry. To upgrade the permissions, provide the appropriate
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 54873085f2dab2..c5f8a9f1706374 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -61,8 +61,11 @@
 #include <linux/cgroup_rdma.h>
 #include <linux/irqflags.h>
 #include <linux/preempt.h>
+#include <linux/dim.h>
 #include <uapi/rdma/ib_user_verbs.h>
+#include <rdma/rdma_counter.h>
 #include <rdma/restrack.h>
+#include <rdma/signature.h>
 #include <uapi/rdma/rdma_user_ioctl.h>
 #include <uapi/rdma/ib_user_ioctl_verbs.h>
 
@@ -132,17 +135,6 @@ struct ib_gid_attr {
 	u8			port_num;
 };
 
-enum rdma_node_type {
-	/* IB values map to NodeInfo:NodeType. */
-	RDMA_NODE_IB_CA 	= 1,
-	RDMA_NODE_IB_SWITCH,
-	RDMA_NODE_IB_ROUTER,
-	RDMA_NODE_RNIC,
-	RDMA_NODE_USNIC,
-	RDMA_NODE_USNIC_UDP,
-	RDMA_NODE_UNSPECIFIED,
-};
-
 enum {
 	/* set the local administered indication */
 	IB_SA_WELL_KNOWN_GUID	= BIT_ULL(57) | 2,
@@ -164,7 +156,7 @@ enum rdma_protocol_type {
 };
 
 __attribute_const__ enum rdma_transport_type
-rdma_node_get_transport(enum rdma_node_type node_type);
+rdma_node_get_transport(unsigned int node_type);
 
 enum rdma_network_type {
 	RDMA_NETWORK_IB,
@@ -263,7 +255,7 @@ enum ib_device_cap_flags {
 	 */
 	IB_DEVICE_CROSS_CHANNEL			= (1 << 27),
 	IB_DEVICE_MANAGED_FLOW_STEERING		= (1 << 29),
-	IB_DEVICE_SIGNATURE_HANDOVER		= (1 << 30),
+	IB_DEVICE_INTEGRITY_HANDOVER		= (1 << 30),
 	IB_DEVICE_ON_DEMAND_PAGING		= (1ULL << 31),
 	IB_DEVICE_SG_GAPS_REG			= (1ULL << 32),
 	IB_DEVICE_VIRTUAL_FUNCTION		= (1ULL << 33),
@@ -275,17 +267,6 @@ enum ib_device_cap_flags {
 	IB_DEVICE_ALLOW_USER_UNREG		= (1ULL << 37),
 };
 
-enum ib_signature_prot_cap {
-	IB_PROT_T10DIF_TYPE_1 = 1,
-	IB_PROT_T10DIF_TYPE_2 = 1 << 1,
-	IB_PROT_T10DIF_TYPE_3 = 1 << 2,
-};
-
-enum ib_signature_guard_cap {
-	IB_GUARD_T10DIF_CRC	= 1,
-	IB_GUARD_T10DIF_CSUM	= 1 << 1,
-};
-
 enum ib_atomic_cap {
 	IB_ATOMIC_NONE,
 	IB_ATOMIC_HCA,
@@ -327,8 +308,8 @@ struct ib_rss_caps {
 };
 
 enum ib_tm_cap_flags {
-	/*  Support tag matching on RC transport */
-	IB_TM_CAP_RC		    = 1 << 0,
+	/*  Support tag matching with rendezvous offload for RC transport */
+	IB_TM_CAP_RNDV_RC = 1 << 0,
 };
 
 struct ib_tm_caps {
@@ -411,6 +392,7 @@ struct ib_device_attr {
 	int			max_srq_wr;
 	int			max_srq_sge;
 	unsigned int		max_fast_reg_page_list_len;
+	unsigned int		max_pi_fast_reg_page_list_len;
 	u16			max_pkeys;
 	u8			local_ca_ack_delay;
 	int			sig_prot_cap;
@@ -796,118 +778,26 @@ __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate);
  * enum ib_mr_type - memory region type
  * @IB_MR_TYPE_MEM_REG:       memory region that is used for
  *                            normal registration
- * @IB_MR_TYPE_SIGNATURE:     memory region that is used for
- *                            signature operations (data-integrity
- *                            capable regions)
  * @IB_MR_TYPE_SG_GAPS:       memory region that is capable to
  *                            register any arbitrary sg lists (without
  *                            the normal mr constraints - see
  *                            ib_map_mr_sg)
+ * @IB_MR_TYPE_DM:            memory region that is used for device
+ *                            memory registration
+ * @IB_MR_TYPE_USER:          memory region that is used for the user-space
+ *                            application
+ * @IB_MR_TYPE_DMA:           memory region that is used for DMA operations
+ *                            without address translations (VA=PA)
+ * @IB_MR_TYPE_INTEGRITY:     memory region that is used for
+ *                            data integrity operations
  */
 enum ib_mr_type {
 	IB_MR_TYPE_MEM_REG,
-	IB_MR_TYPE_SIGNATURE,
 	IB_MR_TYPE_SG_GAPS,
-};
-
-/**
- * Signature types
- * IB_SIG_TYPE_NONE: Unprotected.
- * IB_SIG_TYPE_T10_DIF: Type T10-DIF
- */
-enum ib_signature_type {
-	IB_SIG_TYPE_NONE,
-	IB_SIG_TYPE_T10_DIF,
-};
-
-/**
- * Signature T10-DIF block-guard types
- * IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules.
- * IB_T10DIF_CSUM: Corresponds to IP checksum rules.
- */
-enum ib_t10_dif_bg_type {
-	IB_T10DIF_CRC,
-	IB_T10DIF_CSUM
-};
-
-/**
- * struct ib_t10_dif_domain - Parameters specific for T10-DIF
- *     domain.
- * @bg_type: T10-DIF block guard type (CRC|CSUM)
- * @pi_interval: protection information interval.
- * @bg: seed of guard computation.
- * @app_tag: application tag of guard block
- * @ref_tag: initial guard block reference tag.
- * @ref_remap: Indicate wethear the reftag increments each block
- * @app_escape: Indicate to skip block check if apptag=0xffff
- * @ref_escape: Indicate to skip block check if reftag=0xffffffff
- * @apptag_check_mask: check bitmask of application tag.
- */
-struct ib_t10_dif_domain {
-	enum ib_t10_dif_bg_type bg_type;
-	u16			pi_interval;
-	u16			bg;
-	u16			app_tag;
-	u32			ref_tag;
-	bool			ref_remap;
-	bool			app_escape;
-	bool			ref_escape;
-	u16			apptag_check_mask;
-};
-
-/**
- * struct ib_sig_domain - Parameters for signature domain
- * @sig_type: specific signauture type
- * @sig: union of all signature domain attributes that may
- *     be used to set domain layout.
- */
-struct ib_sig_domain {
-	enum ib_signature_type sig_type;
-	union {
-		struct ib_t10_dif_domain dif;
-	} sig;
-};
-
-/**
- * struct ib_sig_attrs - Parameters for signature handover operation
- * @check_mask: bitmask for signature byte check (8 bytes)
- * @mem: memory domain layout desciptor.
- * @wire: wire domain layout desciptor.
- */
-struct ib_sig_attrs {
-	u8			check_mask;
-	struct ib_sig_domain	mem;
-	struct ib_sig_domain	wire;
-};
-
-enum ib_sig_err_type {
-	IB_SIG_BAD_GUARD,
-	IB_SIG_BAD_REFTAG,
-	IB_SIG_BAD_APPTAG,
-};
-
-/**
- * Signature check masks (8 bytes in total) according to the T10-PI standard:
- *  -------- -------- ------------
- * | GUARD  | APPTAG |   REFTAG   |
- * |  2B    |  2B    |    4B      |
- *  -------- -------- ------------
- */
-enum {
-	IB_SIG_CHECK_GUARD	= 0xc0,
-	IB_SIG_CHECK_APPTAG	= 0x30,
-	IB_SIG_CHECK_REFTAG	= 0x0f,
-};
-
-/**
- * struct ib_sig_err - signature error descriptor
- */
-struct ib_sig_err {
-	enum ib_sig_err_type	err_type;
-	u32			expected;
-	u32			actual;
-	u64			sig_err_offset;
-	u32			key;
+	IB_MR_TYPE_DM,
+	IB_MR_TYPE_USER,
+	IB_MR_TYPE_DMA,
+	IB_MR_TYPE_INTEGRITY,
 };
 
 enum ib_mr_status_check {
@@ -1164,7 +1054,7 @@ enum ib_qp_create_flags {
 	IB_QP_CREATE_MANAGED_SEND               = 1 << 3,
 	IB_QP_CREATE_MANAGED_RECV               = 1 << 4,
 	IB_QP_CREATE_NETIF_QP			= 1 << 5,
-	IB_QP_CREATE_SIGNATURE_EN		= 1 << 6,
+	IB_QP_CREATE_INTEGRITY_EN		= 1 << 6,
 	/* FREE					= 1 << 7, */
 	IB_QP_CREATE_SCATTER_FCS		= 1 << 8,
 	IB_QP_CREATE_CVLAN_STRIPPING		= 1 << 9,
@@ -1343,7 +1233,7 @@ enum ib_wr_opcode {
 
 	/* These are kernel only and can not be issued by userspace */
 	IB_WR_REG_MR = 0x20,
-	IB_WR_REG_SIG_MR,
+	IB_WR_REG_MR_INTEGRITY,
 
 	/* reserve values for low level drivers' internal use.
 	 * These values will not be used at all in the ib core layer.
@@ -1453,20 +1343,6 @@ static inline const struct ib_reg_wr *reg_wr(const struct ib_send_wr *wr)
 	return container_of(wr, struct ib_reg_wr, wr);
 }
 
-struct ib_sig_handover_wr {
-	struct ib_send_wr	wr;
-	struct ib_sig_attrs    *sig_attrs;
-	struct ib_mr	       *sig_mr;
-	int			access_flags;
-	struct ib_sge	       *prot;
-};
-
-static inline const struct ib_sig_handover_wr *
-sig_handover_wr(const struct ib_send_wr *wr)
-{
-	return container_of(wr, struct ib_sig_handover_wr, wr);
-}
-
 struct ib_recv_wr {
 	struct ib_recv_wr      *next;
 	union {
@@ -1634,6 +1510,7 @@ struct ib_cq {
 		struct work_struct	work;
 	};
 	struct workqueue_struct *comp_wq;
+	struct dim *dim;
 	/*
 	 * Implementation details of the RDMA core, don't use in drivers:
 	 */
@@ -1818,10 +1695,14 @@ struct ib_qp {
 	struct ib_qp_security  *qp_sec;
 	u8			port;
 
+	bool			integrity_en;
 	/*
 	 * Implementation details of the RDMA core, don't use in drivers:
 	 */
 	struct rdma_restrack_entry     res;
+
+	/* The counter the qp is bind to */
+	struct rdma_counter    *counter;
 };
 
 struct ib_dm {
@@ -1840,6 +1721,7 @@ struct ib_mr {
 	u64		   iova;
 	u64		   length;
 	unsigned int	   page_size;
+	enum ib_mr_type	   type;
 	bool		   need_inval;
 	union {
 		struct ib_uobject	*uobject;	/* user */
@@ -1847,7 +1729,7 @@ struct ib_mr {
 	};
 
 	struct ib_dm      *dm;
-
+	struct ib_sig_attrs *sig_attrs; /* only for IB_MR_TYPE_INTEGRITY MRs */
 	/*
 	 * Implementation details of the RDMA core, don't use in drivers:
 	 */
@@ -2243,6 +2125,8 @@ struct ib_port_data {
 	spinlock_t netdev_lock;
 	struct net_device __rcu *netdev;
 	struct hlist_node ndev_hash_link;
+	struct rdma_port_counter port_counter;
+	struct rdma_hw_stats *hw_stats;
 };
 
 /* rdma netdev type - specifies protocol type */
@@ -2329,6 +2213,11 @@ struct iw_cm_conn_param;
  * need to define the supported operations, otherwise they will be set to null.
  */
 struct ib_device_ops {
+	struct module *owner;
+	enum rdma_driver_id driver_id;
+	u32 uverbs_abi_ver;
+	unsigned int uverbs_no_driver_id_binding:1;
+
 	int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr,
 			 const struct ib_send_wr **bad_send_wr);
 	int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr,
@@ -2454,11 +2343,10 @@ struct ib_device_ops {
 	int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
 			int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
 	int (*destroy_qp)(struct ib_qp *qp, struct ib_udata *udata);
-	struct ib_cq *(*create_cq)(struct ib_device *device,
-				   const struct ib_cq_init_attr *attr,
-				   struct ib_udata *udata);
+	int (*create_cq)(struct ib_cq *cq, const struct ib_cq_init_attr *attr,
+			 struct ib_udata *udata);
 	int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period);
-	int (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata);
+	void (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata);
 	int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata);
 	struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags);
 	struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length,
@@ -2470,6 +2358,9 @@ struct ib_device_ops {
 	int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata);
 	struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type,
 				  u32 max_num_sg, struct ib_udata *udata);
+	struct ib_mr *(*alloc_mr_integrity)(struct ib_pd *pd,
+					    u32 max_num_data_sg,
+					    u32 max_num_meta_sg);
 	int (*advise_mr)(struct ib_pd *pd,
 			 enum ib_uverbs_advise_mr_advice advice, u32 flags,
 			 struct ib_sge *sg_list, u32 num_sge,
@@ -2516,7 +2407,7 @@ struct ib_device_ops {
 	struct ib_wq *(*create_wq)(struct ib_pd *pd,
 				   struct ib_wq_init_attr *init_attr,
 				   struct ib_udata *udata);
-	int (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata);
+	void (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata);
 	int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr,
 			 u32 wq_attr_mask, struct ib_udata *udata);
 	struct ib_rwq_ind_table *(*create_rwq_ind_table)(
@@ -2538,6 +2429,11 @@ struct ib_device_ops {
 	int (*read_counters)(struct ib_counters *counters,
 			     struct ib_counters_read_attr *counters_read_attr,
 			     struct uverbs_attr_bundle *attrs);
+	int (*map_mr_sg_pi)(struct ib_mr *mr, struct scatterlist *data_sg,
+			    int data_sg_nents, unsigned int *data_sg_offset,
+			    struct scatterlist *meta_sg, int meta_sg_nents,
+			    unsigned int *meta_sg_offset);
+
 	/**
 	 * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
 	 *   driver initialized data.  The struct is kfree()'ed by the sysfs
@@ -2595,8 +2491,34 @@ struct ib_device_ops {
 			 u8 pdata_len);
 	int (*iw_create_listen)(struct iw_cm_id *cm_id, int backlog);
 	int (*iw_destroy_listen)(struct iw_cm_id *cm_id);
+	/**
+	 * counter_bind_qp - Bind a QP to a counter.
+	 * @counter - The counter to be bound. If counter->id is zero then
+	 *   the driver needs to allocate a new counter and set counter->id
+	 */
+	int (*counter_bind_qp)(struct rdma_counter *counter, struct ib_qp *qp);
+	/**
+	 * counter_unbind_qp - Unbind the qp from the dynamically-allocated
+	 *   counter and bind it onto the default one
+	 */
+	int (*counter_unbind_qp)(struct ib_qp *qp);
+	/**
+	 * counter_dealloc -De-allocate the hw counter
+	 */
+	int (*counter_dealloc)(struct rdma_counter *counter);
+	/**
+	 * counter_alloc_stats - Allocate a struct rdma_hw_stats and fill in
+	 * the driver initialized data.
+	 */
+	struct rdma_hw_stats *(*counter_alloc_stats)(
+		struct rdma_counter *counter);
+	/**
+	 * counter_update_stats - Query the stats value of this counter
+	 */
+	int (*counter_update_stats)(struct rdma_counter *counter);
 
 	DECLARE_RDMA_OBJ_SIZE(ib_ah);
+	DECLARE_RDMA_OBJ_SIZE(ib_cq);
 	DECLARE_RDMA_OBJ_SIZE(ib_pd);
 	DECLARE_RDMA_OBJ_SIZE(ib_srq);
 	DECLARE_RDMA_OBJ_SIZE(ib_ucontext);
@@ -2636,7 +2558,6 @@ struct ib_device {
 
 	int			      num_comp_vectors;
 
-	struct module               *owner;
 	union {
 		struct device		dev;
 		struct ib_core_device	coredev;
@@ -2648,7 +2569,6 @@ struct ib_device {
 	 */
 	const struct attribute_group	*groups[3];
 
-	int			     uverbs_abi_ver;
 	u64			     uverbs_cmd_mask;
 	u64			     uverbs_ex_cmd_mask;
 
@@ -2658,6 +2578,8 @@ struct ib_device {
 	u16                          is_switch:1;
 	/* Indicates kernel verbs support, should not be used in drivers */
 	u16                          kverbs_provider:1;
+	/* CQ adaptive moderation (RDMA DIM) */
+	u16                          use_cq_dim:1;
 	u8                           node_type;
 	u8                           phys_port_cnt;
 	struct ib_device_attr        attrs;
@@ -2672,7 +2594,6 @@ struct ib_device {
 	struct rdma_restrack_root *res;
 
 	const struct uapi_definition   *driver_def;
-	enum rdma_driver_id		driver_id;
 
 	/*
 	 * Positive refcount indicates that the device is currently
@@ -2694,11 +2615,15 @@ struct ib_device {
 	u32 iw_driver_flags;
 };
 
+struct ib_client_nl_info;
 struct ib_client {
 	const char *name;
 	void (*add)   (struct ib_device *);
 	void (*remove)(struct ib_device *, void *client_data);
 	void (*rename)(struct ib_device *dev, void *client_data);
+	int (*get_nl_info)(struct ib_device *ibdev, void *client_data,
+			   struct ib_client_nl_info *res);
+	int (*get_global_nl_info)(struct ib_client_nl_info *res);
 
 	/* Returns the net_dev belonging to this ib_client and matching the
 	 * given parameters.
@@ -3859,9 +3784,9 @@ int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata);
  *
  * NOTE: for user cq use ib_destroy_cq_user with valid udata!
  */
-static inline int ib_destroy_cq(struct ib_cq *cq)
+static inline void ib_destroy_cq(struct ib_cq *cq)
 {
-	return ib_destroy_cq_user(cq, NULL);
+	ib_destroy_cq_user(cq, NULL);
 }
 
 /**
@@ -4148,6 +4073,10 @@ static inline struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
 	return ib_alloc_mr_user(pd, mr_type, max_num_sg, NULL);
 }
 
+struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd,
+				    u32 max_num_data_sg,
+				    u32 max_num_meta_sg);
+
 /**
  * ib_update_fast_reg_key - updates the key portion of the fast_reg MR
  *   R_Key and L_Key.
@@ -4332,6 +4261,10 @@ int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
 
 int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
 		 unsigned int *sg_offset, unsigned int page_size);
+int ib_map_mr_sg_pi(struct ib_mr *mr, struct scatterlist *data_sg,
+		    int data_sg_nents, unsigned int *data_sg_offset,
+		    struct scatterlist *meta_sg, int meta_sg_nents,
+		    unsigned int *meta_sg_offset, unsigned int page_size);
 
 static inline int
 ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
diff --git a/include/rdma/mr_pool.h b/include/rdma/mr_pool.h
index 83763ef8235450..e77123bcb43bc1 100644
--- a/include/rdma/mr_pool.h
+++ b/include/rdma/mr_pool.h
@@ -11,7 +11,7 @@ struct ib_mr *ib_mr_pool_get(struct ib_qp *qp, struct list_head *list);
 void ib_mr_pool_put(struct ib_qp *qp, struct list_head *list, struct ib_mr *mr);
 
 int ib_mr_pool_init(struct ib_qp *qp, struct list_head *list, int nr,
-		enum ib_mr_type type, u32 max_num_sg);
+		enum ib_mr_type type, u32 max_num_sg, u32 max_num_meta_sg);
 void ib_mr_pool_destroy(struct ib_qp *qp, struct list_head *list);
 
 #endif /* _RDMA_MR_POOL_H */
diff --git a/include/rdma/rdma_counter.h b/include/rdma/rdma_counter.h
new file mode 100644
index 00000000000000..eb99856e8b3078
--- /dev/null
+++ b/include/rdma/rdma_counter.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2019 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef _RDMA_COUNTER_H_
+#define _RDMA_COUNTER_H_
+
+#include <linux/mutex.h>
+#include <linux/pid_namespace.h>
+
+#include <rdma/restrack.h>
+#include <rdma/rdma_netlink.h>
+
+struct ib_device;
+struct ib_qp;
+
+struct auto_mode_param {
+	int qp_type;
+};
+
+struct rdma_counter_mode {
+	enum rdma_nl_counter_mode mode;
+	enum rdma_nl_counter_mask mask;
+	struct auto_mode_param param;
+};
+
+struct rdma_port_counter {
+	struct rdma_counter_mode mode;
+	struct rdma_hw_stats *hstats;
+	unsigned int num_counters;
+	struct mutex lock;
+};
+
+struct rdma_counter {
+	struct rdma_restrack_entry	res;
+	struct ib_device		*device;
+	uint32_t			id;
+	struct kref			kref;
+	struct rdma_counter_mode	mode;
+	struct mutex			lock;
+	struct rdma_hw_stats		*stats;
+	u8				port;
+};
+
+void rdma_counter_init(struct ib_device *dev);
+void rdma_counter_release(struct ib_device *dev);
+int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port,
+			       bool on, enum rdma_nl_counter_mask mask);
+int rdma_counter_bind_qp_auto(struct ib_qp *qp, u8 port);
+int rdma_counter_unbind_qp(struct ib_qp *qp, bool force);
+
+int rdma_counter_query_stats(struct rdma_counter *counter);
+u64 rdma_counter_get_hwstat_value(struct ib_device *dev, u8 port, u32 index);
+int rdma_counter_bind_qpn(struct ib_device *dev, u8 port,
+			  u32 qp_num, u32 counter_id);
+int rdma_counter_bind_qpn_alloc(struct ib_device *dev, u8 port,
+				u32 qp_num, u32 *counter_id);
+int rdma_counter_unbind_qpn(struct ib_device *dev, u8 port,
+			    u32 qp_num, u32 counter_id);
+int rdma_counter_get_mode(struct ib_device *dev, u8 port,
+			  enum rdma_nl_counter_mode *mode,
+			  enum rdma_nl_counter_mask *mask);
+
+#endif /* _RDMA_COUNTER_H_ */
diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h
index 10732ab31ba2f9..6631624e4d7c54 100644
--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -6,6 +6,12 @@
 #include <linux/netlink.h>
 #include <uapi/rdma/rdma_netlink.h>
 
+enum {
+	RDMA_NLDEV_ATTR_EMPTY_STRING = 1,
+	RDMA_NLDEV_ATTR_ENTRY_STRLEN = 16,
+	RDMA_NLDEV_ATTR_CHARDEV_TYPE_SIZE = 32,
+};
+
 struct rdma_nl_cbs {
 	int (*doit)(struct sk_buff *skb, struct nlmsghdr *nlh,
 		    struct netlink_ext_ack *extack);
@@ -110,4 +116,6 @@ void rdma_link_register(struct rdma_link_ops *ops);
 void rdma_link_unregister(struct rdma_link_ops *ops);
 
 #define MODULE_ALIAS_RDMA_LINK(type) MODULE_ALIAS("rdma-link-" type)
+#define MODULE_ALIAS_RDMA_CLIENT(type) MODULE_ALIAS("rdma-client-" type)
+
 #endif /* _RDMA_NETLINK_H */
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index b9cd06db1a71e6..525848e227dc53 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -2,7 +2,7 @@
 #define DEF_RDMA_VT_H
 
 /*
- * Copyright(c) 2016 - 2018 Intel Corporation.
+ * Copyright(c) 2016 - 2019 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -202,7 +202,6 @@ struct rvt_pd {
 struct rvt_ah {
 	struct ib_ah ibah;
 	struct rdma_ah_attr attr;
-	atomic_t refcount;
 	u8 vl;
 	u8 log_pmtu;
 };
@@ -555,7 +554,7 @@ static inline u16 rvt_get_pkey(struct rvt_dev_info *rdi,
 
 struct rvt_dev_info *rvt_alloc_device(size_t size, int nports);
 void rvt_dealloc_device(struct rvt_dev_info *rdi);
-int rvt_register_device(struct rvt_dev_info *rvd, u32 driver_id);
+int rvt_register_device(struct rvt_dev_info *rvd);
 void rvt_unregister_device(struct rvt_dev_info *rvd);
 int rvt_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr);
 int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
diff --git a/include/rdma/rdmavt_cq.h b/include/rdma/rdmavt_cq.h
index 75dc65c0bfb83d..04c519ef6d715b 100644
--- a/include/rdma/rdmavt_cq.h
+++ b/include/rdma/rdmavt_cq.h
@@ -61,18 +61,27 @@
 #define RVT_CQ_NONE      (IB_CQ_NEXT_COMP + 1)
 
 /*
+ * Define read macro that apply smp_load_acquire memory barrier
+ * when reading indice of circular buffer that mmaped to user space.
+ */
+#define RDMA_READ_UAPI_ATOMIC(member) smp_load_acquire(&(member).val)
+
+/*
+ * Define write macro that uses smp_store_release memory barrier
+ * when writing indice of circular buffer that mmaped to user space.
+ */
+#define RDMA_WRITE_UAPI_ATOMIC(member, x) smp_store_release(&(member).val, x)
+#include <rdma/rvt-abi.h>
+
+/*
  * This structure is used to contain the head pointer, tail pointer,
  * and completion queue entries as a single memory allocation so
  * it can be mmap'ed into user space.
  */
-struct rvt_cq_wc {
+struct rvt_k_cq_wc {
 	u32 head;               /* index of next entry to fill */
 	u32 tail;               /* index of next ib_poll_cq() entry */
-	union {
-		/* these are actually size ibcq.cqe + 1 */
-		struct ib_uverbs_wc uqueue[0];
-		struct ib_wc kqueue[0];
-	};
+	struct ib_wc kqueue[];
 };
 
 /*
@@ -84,10 +93,12 @@ struct rvt_cq {
 	spinlock_t lock; /* protect changes in this struct */
 	u8 notify;
 	u8 triggered;
+	u8 cq_full;
 	int comp_vector_cpu;
 	struct rvt_dev_info *rdi;
 	struct rvt_cq_wc *queue;
 	struct rvt_mmap_info *ip;
+	struct rvt_k_cq_wc *kqueue;
 };
 
 static inline struct rvt_cq *ibcq_to_rvtcq(struct ib_cq *ibcq)
@@ -95,6 +106,6 @@ static inline struct rvt_cq *ibcq_to_rvtcq(struct ib_cq *ibcq)
 	return container_of(ibcq, struct rvt_cq, ibcq);
 }
 
-void rvt_cq_enter(struct rvt_cq *cq, struct ib_wc *entry, bool solicited);
+bool rvt_cq_enter(struct rvt_cq *cq, struct ib_wc *entry, bool solicited);
 
 #endif          /* DEF_RDMAVT_INCCQH */
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 68e38c20afc043..0eeea520a85315 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -2,7 +2,7 @@
 #define DEF_RDMAVT_INCQP_H
 
 /*
- * Copyright(c) 2016 - 2018 Intel Corporation.
+ * Copyright(c) 2016 - 2019 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -52,6 +52,7 @@
 #include <rdma/ib_pack.h>
 #include <rdma/ib_verbs.h>
 #include <rdma/rdmavt_cq.h>
+#include <rdma/rvt-abi.h>
 /*
  * Atomic bit definitions for r_aflags.
  */
@@ -156,6 +157,22 @@
 #define RVT_SEND_RESERVE_USED           IB_SEND_RESERVED_START
 #define RVT_SEND_COMPLETION_ONLY	(IB_SEND_RESERVED_START << 1)
 
+/**
+ * rvt_ud_wr - IB UD work plus AH cache
+ * @wr: valid IB work request
+ * @attr: pointer to an allocated AH attribute
+ *
+ * Special case the UD WR so we can keep track of the AH attributes.
+ *
+ * NOTE: This data structure is stricly ordered wr then attr. I.e the attr
+ * MUST come after wr.  The ib_ud_wr is sized and copied in rvt_post_one_wr.
+ * The copy assumes that wr is first.
+ */
+struct rvt_ud_wr {
+	struct ib_ud_wr wr;
+	struct rdma_ah_attr *attr;
+};
+
 /*
  * Send work request queue entry.
  * The size of the sg_list is determined when the QP is created and stored
@@ -164,7 +181,7 @@
 struct rvt_swqe {
 	union {
 		struct ib_send_wr wr;   /* don't use wr.sg_list */
-		struct ib_ud_wr ud_wr;
+		struct rvt_ud_wr ud_wr;
 		struct ib_reg_wr reg_wr;
 		struct ib_rdma_wr rdma_wr;
 		struct ib_atomic_wr atomic_wr;
@@ -177,33 +194,84 @@ struct rvt_swqe {
 	struct rvt_sge sg_list[0];
 };
 
-/*
- * Receive work request queue entry.
- * The size of the sg_list is determined when the QP (or SRQ) is created
- * and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
+/**
+ * struct rvt_krwq - kernel struct receive work request
+ * @p_lock: lock to protect producer of the kernel buffer
+ * @head: index of next entry to fill
+ * @c_lock:lock to protect consumer of the kernel buffer
+ * @tail: index of next entry to pull
+ * @count: count is aproximate of total receive enteries posted
+ * @rvt_rwqe: struct of receive work request queue entry
+ *
+ * This structure is used to contain the head pointer,
+ * tail pointer and receive work queue entries for kernel
+ * mode user.
  */
-struct rvt_rwqe {
-	u64 wr_id;
-	u8 num_sge;
-	struct ib_sge sg_list[0];
-};
-
-/*
- * This structure is used to contain the head pointer, tail pointer,
- * and receive work queue entries as a single memory allocation so
- * it can be mmap'ed into user space.
- * Note that the wq array elements are variable size so you can't
- * just index into the array to get the N'th element;
- * use get_rwqe_ptr() instead.
- */
-struct rvt_rwq {
+struct rvt_krwq {
+	spinlock_t p_lock;	/* protect producer */
 	u32 head;               /* new work requests posted to the head */
+
+	/* protect consumer */
+	spinlock_t c_lock ____cacheline_aligned_in_smp;
 	u32 tail;               /* receives pull requests from here. */
-	struct rvt_rwqe wq[0];
+	u32 count;		/* approx count of receive entries posted */
+	struct rvt_rwqe *curr_wq;
+	struct rvt_rwqe wq[];
 };
 
+/*
+ * rvt_get_swqe_ah - Return the pointer to the struct rvt_ah
+ * @swqe: valid Send WQE
+ *
+ */
+static inline struct rvt_ah *rvt_get_swqe_ah(struct rvt_swqe *swqe)
+{
+	return ibah_to_rvtah(swqe->ud_wr.wr.ah);
+}
+
+/**
+ * rvt_get_swqe_ah_attr - Return the cached ah attribute information
+ * @swqe: valid Send WQE
+ *
+ */
+static inline struct rdma_ah_attr *rvt_get_swqe_ah_attr(struct rvt_swqe *swqe)
+{
+	return swqe->ud_wr.attr;
+}
+
+/**
+ * rvt_get_swqe_remote_qpn - Access the remote QPN value
+ * @swqe: valid Send WQE
+ *
+ */
+static inline u32 rvt_get_swqe_remote_qpn(struct rvt_swqe *swqe)
+{
+	return swqe->ud_wr.wr.remote_qpn;
+}
+
+/**
+ * rvt_get_swqe_remote_qkey - Acces the remote qkey value
+ * @swqe: valid Send WQE
+ *
+ */
+static inline u32 rvt_get_swqe_remote_qkey(struct rvt_swqe *swqe)
+{
+	return swqe->ud_wr.wr.remote_qkey;
+}
+
+/**
+ * rvt_get_swqe_pkey_index - Access the pkey index
+ * @swqe: valid Send WQE
+ *
+ */
+static inline u16 rvt_get_swqe_pkey_index(struct rvt_swqe *swqe)
+{
+	return swqe->ud_wr.wr.pkey_index;
+}
+
 struct rvt_rq {
 	struct rvt_rwq *wq;
+	struct rvt_krwq *kwq;
 	u32 size;               /* size of RWQE array */
 	u8 max_sge;
 	/* protect changes in this struct */
@@ -472,7 +540,7 @@ static inline struct rvt_swqe *rvt_get_swqe_ptr(struct rvt_qp *qp,
 static inline struct rvt_rwqe *rvt_get_rwqe_ptr(struct rvt_rq *rq, unsigned n)
 {
 	return (struct rvt_rwqe *)
-		((char *)rq->wq->wq +
+		((char *)rq->kwq->curr_wq +
 		 (sizeof(struct rvt_rwqe) +
 		  rq->max_sge * sizeof(struct ib_sge)) * n);
 }
@@ -565,42 +633,6 @@ static inline void rvt_qp_wqe_unreserve(
 
 extern const enum ib_wc_opcode ib_rvt_wc_opcode[];
 
-/**
- * rvt_qp_swqe_complete() - insert send completion
- * @qp - the qp
- * @wqe - the send wqe
- * @status - completion status
- *
- * Insert a send completion into the completion
- * queue if the qp indicates it should be done.
- *
- * See IBTA 10.7.3.1 for info on completion
- * control.
- */
-static inline void rvt_qp_swqe_complete(
-	struct rvt_qp *qp,
-	struct rvt_swqe *wqe,
-	enum ib_wc_opcode opcode,
-	enum ib_wc_status status)
-{
-	if (unlikely(wqe->wr.send_flags & RVT_SEND_RESERVE_USED))
-		return;
-	if (!(qp->s_flags & RVT_S_SIGNAL_REQ_WR) ||
-	    (wqe->wr.send_flags & IB_SEND_SIGNALED) ||
-	     status != IB_WC_SUCCESS) {
-		struct ib_wc wc;
-
-		memset(&wc, 0, sizeof(wc));
-		wc.wr_id = wqe->wr.wr_id;
-		wc.status = status;
-		wc.opcode = opcode;
-		wc.qp = &qp->ibqp;
-		wc.byte_len = wqe->length;
-		rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.send_cq), &wc,
-			     status != IB_WC_SUCCESS);
-	}
-}
-
 /*
  * Compare the lower 24 bits of the msn values.
  * Returns an integer <, ==, or > than zero.
@@ -734,7 +766,119 @@ static inline void rvt_put_qp_swqe(struct rvt_qp *qp, struct rvt_swqe *wqe)
 {
 	rvt_put_swqe(wqe);
 	if (qp->allowed_ops == IB_OPCODE_UD)
-		atomic_dec(&ibah_to_rvtah(wqe->ud_wr.ah)->refcount);
+		rdma_destroy_ah_attr(wqe->ud_wr.attr);
+}
+
+/**
+ * rvt_qp_sqwe_incr - increment ring index
+ * @qp: the qp
+ * @val: the starting value
+ *
+ * Return: the new value wrapping as appropriate
+ */
+static inline u32
+rvt_qp_swqe_incr(struct rvt_qp *qp, u32 val)
+{
+	if (++val >= qp->s_size)
+		val = 0;
+	return val;
+}
+
+int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err);
+
+/**
+ * rvt_recv_cq - add a new entry to completion queue
+ *			by receive queue
+ * @qp: receive queue
+ * @wc: work completion entry to add
+ * @solicited: true if @entry is solicited
+ *
+ * This is wrapper function for rvt_enter_cq function call by
+ * receive queue. If rvt_cq_enter return false, it means cq is
+ * full and the qp is put into error state.
+ */
+static inline void rvt_recv_cq(struct rvt_qp *qp, struct ib_wc *wc,
+			       bool solicited)
+{
+	struct rvt_cq *cq = ibcq_to_rvtcq(qp->ibqp.recv_cq);
+
+	if (unlikely(!rvt_cq_enter(cq, wc, solicited)))
+		rvt_error_qp(qp, IB_WC_LOC_QP_OP_ERR);
+}
+
+/**
+ * rvt_send_cq - add a new entry to completion queue
+ *                        by send queue
+ * @qp: send queue
+ * @wc: work completion entry to add
+ * @solicited: true if @entry is solicited
+ *
+ * This is wrapper function for rvt_enter_cq function call by
+ * send queue. If rvt_cq_enter return false, it means cq is
+ * full and the qp is put into error state.
+ */
+static inline void rvt_send_cq(struct rvt_qp *qp, struct ib_wc *wc,
+			       bool solicited)
+{
+	struct rvt_cq *cq = ibcq_to_rvtcq(qp->ibqp.send_cq);
+
+	if (unlikely(!rvt_cq_enter(cq, wc, solicited)))
+		rvt_error_qp(qp, IB_WC_LOC_QP_OP_ERR);
+}
+
+/**
+ * rvt_qp_complete_swqe - insert send completion
+ * @qp - the qp
+ * @wqe - the send wqe
+ * @opcode - wc operation (driver dependent)
+ * @status - completion status
+ *
+ * Update the s_last information, and then insert a send
+ * completion into the completion
+ * queue if the qp indicates it should be done.
+ *
+ * See IBTA 10.7.3.1 for info on completion
+ * control.
+ *
+ * Return: new last
+ */
+static inline u32
+rvt_qp_complete_swqe(struct rvt_qp *qp,
+		     struct rvt_swqe *wqe,
+		     enum ib_wc_opcode opcode,
+		     enum ib_wc_status status)
+{
+	bool need_completion;
+	u64 wr_id;
+	u32 byte_len, last;
+	int flags = wqe->wr.send_flags;
+
+	rvt_put_qp_swqe(qp, wqe);
+
+	need_completion =
+		!(flags & RVT_SEND_RESERVE_USED) &&
+		(!(qp->s_flags & RVT_S_SIGNAL_REQ_WR) ||
+		(flags & IB_SEND_SIGNALED) ||
+		status != IB_WC_SUCCESS);
+	if (need_completion) {
+		wr_id = wqe->wr.wr_id;
+		byte_len = wqe->length;
+		/* above fields required before writing s_last */
+	}
+	last = rvt_qp_swqe_incr(qp, qp->s_last);
+	/* see rvt_qp_is_avail() */
+	smp_store_release(&qp->s_last, last);
+	if (need_completion) {
+		struct ib_wc w = {
+			.wr_id = wr_id,
+			.status = status,
+			.opcode = opcode,
+			.qp = &qp->ibqp,
+			.byte_len = byte_len,
+		};
+		rvt_send_cq(qp, &w, status != IB_WC_SUCCESS);
+	}
+	return last;
 }
 
 extern const int  ib_rvt_state_ops[];
@@ -742,7 +886,6 @@ extern const int  ib_rvt_state_ops[];
 struct rvt_dev_info;
 int rvt_get_rwqe(struct rvt_qp *qp, bool wr_id_only);
 void rvt_comm_est(struct rvt_qp *qp);
-int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err);
 void rvt_rc_error(struct rvt_qp *qp, enum ib_wc_status err);
 unsigned long rvt_rnr_tbl_to_usec(u32 index);
 enum hrtimer_restart rvt_rc_rnr_retry(struct hrtimer *t);
@@ -784,6 +927,53 @@ struct rvt_qp_iter {
 	int n;
 };
 
+/**
+ * ib_cq_tail - Return tail index of cq buffer
+ * @send_cq - The cq for send
+ *
+ * This is called in qp_iter_print to get tail
+ * of cq buffer.
+ */
+static inline u32 ib_cq_tail(struct ib_cq *send_cq)
+{
+	struct rvt_cq *cq = ibcq_to_rvtcq(send_cq);
+
+	return ibcq_to_rvtcq(send_cq)->ip ?
+	       RDMA_READ_UAPI_ATOMIC(cq->queue->tail) :
+	       ibcq_to_rvtcq(send_cq)->kqueue->tail;
+}
+
+/**
+ * ib_cq_head - Return head index of cq buffer
+ * @send_cq - The cq for send
+ *
+ * This is called in qp_iter_print to get head
+ * of cq buffer.
+ */
+static inline u32 ib_cq_head(struct ib_cq *send_cq)
+{
+	struct rvt_cq *cq = ibcq_to_rvtcq(send_cq);
+
+	return ibcq_to_rvtcq(send_cq)->ip ?
+	       RDMA_READ_UAPI_ATOMIC(cq->queue->head) :
+	       ibcq_to_rvtcq(send_cq)->kqueue->head;
+}
+
+/**
+ * rvt_free_rq - free memory allocated for rvt_rq struct
+ * @rvt_rq: request queue data structure
+ *
+ * This function should only be called if the rvt_mmap_info()
+ * has not succeeded.
+ */
+static inline void rvt_free_rq(struct rvt_rq *rq)
+{
+	kvfree(rq->kwq);
+	rq->kwq = NULL;
+	vfree(rq->wq);
+	rq->wq = NULL;
+}
+
 struct rvt_qp_iter *rvt_qp_iter_init(struct rvt_dev_info *rdi,
 				     u64 v,
 				     void (*cb)(struct rvt_qp *qp, u64 v));
diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h
index ecf3c7702a4ff9..b0fc6b26bdf531 100644
--- a/include/rdma/restrack.h
+++ b/include/rdma/restrack.h
@@ -14,6 +14,9 @@
 #include <uapi/rdma/rdma_netlink.h>
 #include <linux/xarray.h>
 
+struct ib_device;
+struct sk_buff;
+
 /**
  * enum rdma_restrack_type - HW objects to track
  */
@@ -43,13 +46,15 @@ enum rdma_restrack_type {
 	 */
 	RDMA_RESTRACK_CTX,
 	/**
+	 * @RDMA_RESTRACK_COUNTER: Statistic Counter
+	 */
+	RDMA_RESTRACK_COUNTER,
+	/**
 	 * @RDMA_RESTRACK_MAX: Last entry, used for array dclarations
 	 */
 	RDMA_RESTRACK_MAX
 };
 
-struct ib_device;
-
 /**
  * struct rdma_restrack_entry - metadata per-entry
  */
diff --git a/include/rdma/rw.h b/include/rdma/rw.h
index 494f79ca3e621c..6ad9dc836c107c 100644
--- a/include/rdma/rw.h
+++ b/include/rdma/rw.h
@@ -39,15 +39,6 @@ struct rdma_rw_ctx {
 			struct ib_send_wr	inv_wr;
 			struct ib_mr		*mr;
 		} *reg;
-
-		struct {
-			struct rdma_rw_reg_ctx	data;
-			struct rdma_rw_reg_ctx	prot;
-			struct ib_send_wr	sig_inv_wr;
-			struct ib_mr		*sig_mr;
-			struct ib_sge		sig_sge;
-			struct ib_sig_handover_wr sig_wr;
-		} *sig;
 	};
 };
 
diff --git a/include/rdma/signature.h b/include/rdma/signature.h
new file mode 100644
index 00000000000000..f24cc2a1d3c5d9
--- /dev/null
+++ b/include/rdma/signature.h
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR Linux-OpenIB) */
+/*
+ * Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef _RDMA_SIGNATURE_H_
+#define _RDMA_SIGNATURE_H_
+
+enum ib_signature_prot_cap {
+	IB_PROT_T10DIF_TYPE_1 = 1,
+	IB_PROT_T10DIF_TYPE_2 = 1 << 1,
+	IB_PROT_T10DIF_TYPE_3 = 1 << 2,
+};
+
+enum ib_signature_guard_cap {
+	IB_GUARD_T10DIF_CRC	= 1,
+	IB_GUARD_T10DIF_CSUM	= 1 << 1,
+};
+
+/**
+ * enum ib_signature_type - Signature types
+ * @IB_SIG_TYPE_NONE: Unprotected.
+ * @IB_SIG_TYPE_T10_DIF: Type T10-DIF
+ */
+enum ib_signature_type {
+	IB_SIG_TYPE_NONE,
+	IB_SIG_TYPE_T10_DIF,
+};
+
+/**
+ * enum ib_t10_dif_bg_type - Signature T10-DIF block-guard types
+ * @IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules.
+ * @IB_T10DIF_CSUM: Corresponds to IP checksum rules.
+ */
+enum ib_t10_dif_bg_type {
+	IB_T10DIF_CRC,
+	IB_T10DIF_CSUM,
+};
+
+/**
+ * struct ib_t10_dif_domain - Parameters specific for T10-DIF
+ *     domain.
+ * @bg_type: T10-DIF block guard type (CRC|CSUM)
+ * @pi_interval: protection information interval.
+ * @bg: seed of guard computation.
+ * @app_tag: application tag of guard block
+ * @ref_tag: initial guard block reference tag.
+ * @ref_remap: Indicate wethear the reftag increments each block
+ * @app_escape: Indicate to skip block check if apptag=0xffff
+ * @ref_escape: Indicate to skip block check if reftag=0xffffffff
+ * @apptag_check_mask: check bitmask of application tag.
+ */
+struct ib_t10_dif_domain {
+	enum ib_t10_dif_bg_type bg_type;
+	u16			pi_interval;
+	u16			bg;
+	u16			app_tag;
+	u32			ref_tag;
+	bool			ref_remap;
+	bool			app_escape;
+	bool			ref_escape;
+	u16			apptag_check_mask;
+};
+
+/**
+ * struct ib_sig_domain - Parameters for signature domain
+ * @sig_type: specific signauture type
+ * @sig: union of all signature domain attributes that may
+ *     be used to set domain layout.
+ */
+struct ib_sig_domain {
+	enum ib_signature_type sig_type;
+	union {
+		struct ib_t10_dif_domain dif;
+	} sig;
+};
+
+/**
+ * struct ib_sig_attrs - Parameters for signature handover operation
+ * @check_mask: bitmask for signature byte check (8 bytes)
+ * @mem: memory domain layout descriptor.
+ * @wire: wire domain layout descriptor.
+ * @meta_length: metadata length
+ */
+struct ib_sig_attrs {
+	u8			check_mask;
+	struct ib_sig_domain	mem;
+	struct ib_sig_domain	wire;
+	int			meta_length;
+};
+
+enum ib_sig_err_type {
+	IB_SIG_BAD_GUARD,
+	IB_SIG_BAD_REFTAG,
+	IB_SIG_BAD_APPTAG,
+};
+
+/*
+ * Signature check masks (8 bytes in total) according to the T10-PI standard:
+ *  -------- -------- ------------
+ * | GUARD  | APPTAG |   REFTAG   |
+ * |  2B    |  2B    |    4B      |
+ *  -------- -------- ------------
+ */
+enum {
+	IB_SIG_CHECK_GUARD = 0xc0,
+	IB_SIG_CHECK_APPTAG = 0x30,
+	IB_SIG_CHECK_REFTAG = 0x0f,
+};
+
+/*
+ * struct ib_sig_err - signature error descriptor
+ */
+struct ib_sig_err {
+	enum ib_sig_err_type	err_type;
+	u32			expected;
+	u32			actual;
+	u64			sig_err_offset;
+	u32			key;
+};
+
+#endif /* _RDMA_SIGNATURE_H_ */
diff --git a/include/uapi/rdma/ib_user_cm.h b/include/uapi/rdma/ib_user_cm.h
deleted file mode 100644
index e2709bb8cb1802..00000000000000
--- a/include/uapi/rdma/ib_user_cm.h
+++ /dev/null
@@ -1,326 +0,0 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
-/*
- * Copyright (c) 2005 Topspin Communications.  All rights reserved.
- * Copyright (c) 2005 Intel Corporation.  All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- *     Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *      - Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *
- *      - Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and/or other materials
- *        provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef IB_USER_CM_H
-#define IB_USER_CM_H
-
-#include <linux/types.h>
-#include <rdma/ib_user_sa.h>
-
-#define IB_USER_CM_ABI_VERSION 5
-
-enum {
-	IB_USER_CM_CMD_CREATE_ID,
-	IB_USER_CM_CMD_DESTROY_ID,
-	IB_USER_CM_CMD_ATTR_ID,
-
-	IB_USER_CM_CMD_LISTEN,
-	IB_USER_CM_CMD_NOTIFY,
-
-	IB_USER_CM_CMD_SEND_REQ,
-	IB_USER_CM_CMD_SEND_REP,
-	IB_USER_CM_CMD_SEND_RTU,
-	IB_USER_CM_CMD_SEND_DREQ,
-	IB_USER_CM_CMD_SEND_DREP,
-	IB_USER_CM_CMD_SEND_REJ,
-	IB_USER_CM_CMD_SEND_MRA,
-	IB_USER_CM_CMD_SEND_LAP,
-	IB_USER_CM_CMD_SEND_APR,
-	IB_USER_CM_CMD_SEND_SIDR_REQ,
-	IB_USER_CM_CMD_SEND_SIDR_REP,
-
-	IB_USER_CM_CMD_EVENT,
-	IB_USER_CM_CMD_INIT_QP_ATTR,
-};
-/*
- * command ABI structures.
- */
-struct ib_ucm_cmd_hdr {
-	__u32 cmd;
-	__u16 in;
-	__u16 out;
-};
-
-struct ib_ucm_create_id {
-	__aligned_u64 uid;
-	__aligned_u64 response;
-};
-
-struct ib_ucm_create_id_resp {
-	__u32 id;
-};
-
-struct ib_ucm_destroy_id {
-	__aligned_u64 response;
-	__u32 id;
-	__u32 reserved;
-};
-
-struct ib_ucm_destroy_id_resp {
-	__u32 events_reported;
-};
-
-struct ib_ucm_attr_id {
-	__aligned_u64 response;
-	__u32 id;
-	__u32 reserved;
-};
-
-struct ib_ucm_attr_id_resp {
-	__be64 service_id;
-	__be64 service_mask;
-	__be32 local_id;
-	__be32 remote_id;
-};
-
-struct ib_ucm_init_qp_attr {
-	__aligned_u64 response;
-	__u32 id;
-	__u32 qp_state;
-};
-
-struct ib_ucm_listen {
-	__be64 service_id;
-	__be64 service_mask;
-	__u32 id;
-	__u32 reserved;
-};
-
-struct ib_ucm_notify {
-	__u32 id;
-	__u32 event;
-};
-
-struct ib_ucm_private_data {
-	__aligned_u64 data;
-	__u32 id;
-	__u8  len;
-	__u8  reserved[3];
-};
-
-struct ib_ucm_req {
-	__u32 id;
-	__u32 qpn;
-	__u32 qp_type;
-	__u32 psn;
-	__be64 sid;
-	__aligned_u64 data;
-	__aligned_u64 primary_path;
-	__aligned_u64 alternate_path;
-	__u8  len;
-	__u8  peer_to_peer;
-	__u8  responder_resources;
-	__u8  initiator_depth;
-	__u8  remote_cm_response_timeout;
-	__u8  flow_control;
-	__u8  local_cm_response_timeout;
-	__u8  retry_count;
-	__u8  rnr_retry_count;
-	__u8  max_cm_retries;
-	__u8  srq;
-	__u8  reserved[5];
-};
-
-struct ib_ucm_rep {
-	__aligned_u64 uid;
-	__aligned_u64 data;
-	__u32 id;
-	__u32 qpn;
-	__u32 psn;
-	__u8  len;
-	__u8  responder_resources;
-	__u8  initiator_depth;
-	__u8  target_ack_delay;
-	__u8  failover_accepted;
-	__u8  flow_control;
-	__u8  rnr_retry_count;
-	__u8  srq;
-	__u8  reserved[4];
-};
-
-struct ib_ucm_info {
-	__u32 id;
-	__u32 status;
-	__aligned_u64 info;
-	__aligned_u64 data;
-	__u8  info_len;
-	__u8  data_len;
-	__u8  reserved[6];
-};
-
-struct ib_ucm_mra {
-	__aligned_u64 data;
-	__u32 id;
-	__u8  len;
-	__u8  timeout;
-	__u8  reserved[2];
-};
-
-struct ib_ucm_lap {
-	__aligned_u64 path;
-	__aligned_u64 data;
-	__u32 id;
-	__u8  len;
-	__u8  reserved[3];
-};
-
-struct ib_ucm_sidr_req {
-	__u32 id;
-	__u32 timeout;
-	__be64 sid;
-	__aligned_u64 data;
-	__aligned_u64 path;
-	__u16 reserved_pkey;
-	__u8  len;
-	__u8  max_cm_retries;
-	__u8  reserved[4];
-};
-
-struct ib_ucm_sidr_rep {
-	__u32 id;
-	__u32 qpn;
-	__u32 qkey;
-	__u32 status;
-	__aligned_u64 info;
-	__aligned_u64 data;
-	__u8  info_len;
-	__u8  data_len;
-	__u8  reserved[6];
-};
-/*
- * event notification ABI structures.
- */
-struct ib_ucm_event_get {
-	__aligned_u64 response;
-	__aligned_u64 data;
-	__aligned_u64 info;
-	__u8  data_len;
-	__u8  info_len;
-	__u8  reserved[6];
-};
-
-struct ib_ucm_req_event_resp {
-	struct ib_user_path_rec primary_path;
-	struct ib_user_path_rec alternate_path;
-	__be64                 remote_ca_guid;
-	__u32                  remote_qkey;
-	__u32                  remote_qpn;
-	__u32                  qp_type;
-	__u32                  starting_psn;
-	__u8  responder_resources;
-	__u8  initiator_depth;
-	__u8  local_cm_response_timeout;
-	__u8  flow_control;
-	__u8  remote_cm_response_timeout;
-	__u8  retry_count;
-	__u8  rnr_retry_count;
-	__u8  srq;
-	__u8  port;
-	__u8  reserved[7];
-};
-
-struct ib_ucm_rep_event_resp {
-	__be64 remote_ca_guid;
-	__u32 remote_qkey;
-	__u32 remote_qpn;
-	__u32 starting_psn;
-	__u8  responder_resources;
-	__u8  initiator_depth;
-	__u8  target_ack_delay;
-	__u8  failover_accepted;
-	__u8  flow_control;
-	__u8  rnr_retry_count;
-	__u8  srq;
-	__u8  reserved[5];
-};
-
-struct ib_ucm_rej_event_resp {
-	__u32 reason;
-	/* ari in ib_ucm_event_get info field. */
-};
-
-struct ib_ucm_mra_event_resp {
-	__u8  timeout;
-	__u8  reserved[3];
-};
-
-struct ib_ucm_lap_event_resp {
-	struct ib_user_path_rec path;
-};
-
-struct ib_ucm_apr_event_resp {
-	__u32 status;
-	/* apr info in ib_ucm_event_get info field. */
-};
-
-struct ib_ucm_sidr_req_event_resp {
-	__u16 pkey;
-	__u8  port;
-	__u8  reserved;
-};
-
-struct ib_ucm_sidr_rep_event_resp {
-	__u32 status;
-	__u32 qkey;
-	__u32 qpn;
-	/* info in ib_ucm_event_get info field. */
-};
-
-#define IB_UCM_PRES_DATA      0x01
-#define IB_UCM_PRES_INFO      0x02
-#define IB_UCM_PRES_PRIMARY   0x04
-#define IB_UCM_PRES_ALTERNATE 0x08
-
-struct ib_ucm_event_resp {
-	__aligned_u64 uid;
-	__u32 id;
-	__u32 event;
-	__u32 present;
-	__u32 reserved;
-	union {
-		struct ib_ucm_req_event_resp req_resp;
-		struct ib_ucm_rep_event_resp rep_resp;
-		struct ib_ucm_rej_event_resp rej_resp;
-		struct ib_ucm_mra_event_resp mra_resp;
-		struct ib_ucm_lap_event_resp lap_resp;
-		struct ib_ucm_apr_event_resp apr_resp;
-
-		struct ib_ucm_sidr_req_event_resp sidr_req_resp;
-		struct ib_ucm_sidr_rep_event_resp sidr_rep_resp;
-
-		__u32                             send_status;
-	} u;
-};
-
-#endif /* IB_USER_CM_H */
diff --git a/include/uapi/rdma/mlx5_user_ioctl_cmds.h b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
index d404c951954cdc..d0da070cf0ab76 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_cmds.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
@@ -51,6 +51,7 @@ enum mlx5_ib_devx_methods {
 	MLX5_IB_METHOD_DEVX_OTHER  = (1U << UVERBS_ID_NS_SHIFT),
 	MLX5_IB_METHOD_DEVX_QUERY_UAR,
 	MLX5_IB_METHOD_DEVX_QUERY_EQN,
+	MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT,
 };
 
 enum  mlx5_ib_devx_other_attrs {
@@ -93,6 +94,14 @@ enum mlx5_ib_devx_obj_query_async_attrs {
 	MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN,
 };
 
+enum mlx5_ib_devx_subscribe_event_attrs {
+	MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
+	MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE,
+	MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST,
+	MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM,
+	MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE,
+};
+
 enum  mlx5_ib_devx_query_eqn_attrs {
 	MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC = (1U << UVERBS_ID_NS_SHIFT),
 	MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
@@ -127,16 +136,26 @@ enum mlx5_ib_devx_async_cmd_fd_alloc_attrs {
 	MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
 };
 
+enum mlx5_ib_devx_async_event_fd_alloc_attrs {
+	MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
+	MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_FLAGS,
+};
+
 enum mlx5_ib_devx_async_cmd_fd_methods {
 	MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC = (1U << UVERBS_ID_NS_SHIFT),
 };
 
+enum mlx5_ib_devx_async_event_fd_methods {
+	MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC = (1U << UVERBS_ID_NS_SHIFT),
+};
+
 enum mlx5_ib_objects {
 	MLX5_IB_OBJECT_DEVX = (1U << UVERBS_ID_NS_SHIFT),
 	MLX5_IB_OBJECT_DEVX_OBJ,
 	MLX5_IB_OBJECT_DEVX_UMEM,
 	MLX5_IB_OBJECT_FLOW_MATCHER,
 	MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD,
+	MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD,
 };
 
 enum mlx5_ib_flow_matcher_create_attrs {
diff --git a/include/uapi/rdma/mlx5_user_ioctl_verbs.h b/include/uapi/rdma/mlx5_user_ioctl_verbs.h
index a8f34c2374586b..7e9900b0e7461f 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_verbs.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_verbs.h
@@ -63,5 +63,14 @@ enum mlx5_ib_uapi_dm_type {
 	MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM,
 };
 
+enum mlx5_ib_uapi_devx_create_event_channel_flags {
+	MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA = 1 << 0,
+};
+
+struct mlx5_ib_uapi_devx_async_event_hdr {
+	__aligned_u64	cookie;
+	__u8		out_data[];
+};
+
 #endif
 
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 41db51367efafb..8e277783fa9610 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -147,6 +147,18 @@ enum {
 	IWPM_NLA_HELLO_MAX
 };
 
+/* For RDMA_NLDEV_ATTR_DEV_NODE_TYPE */
+enum {
+	/* IB values map to NodeInfo:NodeType. */
+	RDMA_NODE_IB_CA = 1,
+	RDMA_NODE_IB_SWITCH,
+	RDMA_NODE_IB_ROUTER,
+	RDMA_NODE_RNIC,
+	RDMA_NODE_USNIC,
+	RDMA_NODE_USNIC_UDP,
+	RDMA_NODE_UNSPECIFIED,
+};
+
 /*
  * Local service operations:
  *   RESOLVE - The client requests the local service to resolve a path.
@@ -267,11 +279,15 @@ enum rdma_nldev_command {
 
 	RDMA_NLDEV_CMD_RES_PD_GET, /* can dump */
 
-	RDMA_NLDEV_NUM_OPS
-};
+	RDMA_NLDEV_CMD_GET_CHARDEV,
 
-enum {
-	RDMA_NLDEV_ATTR_ENTRY_STRLEN = 16,
+	RDMA_NLDEV_CMD_STAT_SET,
+
+	RDMA_NLDEV_CMD_STAT_GET, /* can dump */
+
+	RDMA_NLDEV_CMD_STAT_DEL,
+
+	RDMA_NLDEV_NUM_OPS
 };
 
 enum rdma_nldev_print_type {
@@ -478,10 +494,72 @@ enum rdma_nldev_attr {
 	 * File descriptor handle of the net namespace object
 	 */
 	RDMA_NLDEV_NET_NS_FD,			/* u32 */
+	/*
+	 * Information about a chardev.
+	 * CHARDEV_TYPE is the name of the chardev ABI (ie uverbs, umad, etc)
+	 * CHARDEV_ABI signals the ABI revision (historical)
+	 * CHARDEV_NAME is the kernel name for the /dev/ file (no directory)
+	 * CHARDEV is the 64 bit dev_t for the inode
+	 */
+	RDMA_NLDEV_ATTR_CHARDEV_TYPE,		/* string */
+	RDMA_NLDEV_ATTR_CHARDEV_NAME,		/* string */
+	RDMA_NLDEV_ATTR_CHARDEV_ABI,		/* u64 */
+	RDMA_NLDEV_ATTR_CHARDEV,		/* u64 */
+	RDMA_NLDEV_ATTR_UVERBS_DRIVER_ID,       /* u64 */
+	/*
+	 * Counter-specific attributes.
+	 */
+	RDMA_NLDEV_ATTR_STAT_MODE,		/* u32 */
+	RDMA_NLDEV_ATTR_STAT_RES,		/* u32 */
+	RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK,	/* u32 */
+	RDMA_NLDEV_ATTR_STAT_COUNTER,		/* nested table */
+	RDMA_NLDEV_ATTR_STAT_COUNTER_ENTRY,	/* nested table */
+	RDMA_NLDEV_ATTR_STAT_COUNTER_ID,	/* u32 */
+	RDMA_NLDEV_ATTR_STAT_HWCOUNTERS,	/* nested table */
+	RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY,	/* nested table */
+	RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY_NAME,	/* string */
+	RDMA_NLDEV_ATTR_STAT_HWCOUNTER_ENTRY_VALUE,	/* u64 */
+
+	/*
+	 * CQ adaptive moderatio (DIM)
+	 */
+	RDMA_NLDEV_ATTR_DEV_DIM,                /* u8 */
 
 	/*
 	 * Always the end
 	 */
 	RDMA_NLDEV_ATTR_MAX
 };
+
+/*
+ * Supported counter bind modes. All modes are mutual-exclusive.
+ */
+enum rdma_nl_counter_mode {
+	RDMA_COUNTER_MODE_NONE,
+
+	/*
+	 * A qp is bound with a counter automatically during initialization
+	 * based on the auto mode (e.g., qp type, ...)
+	 */
+	RDMA_COUNTER_MODE_AUTO,
+
+	/*
+	 * Which qp are bound with which counter is explicitly specified
+	 * by the user
+	 */
+	RDMA_COUNTER_MODE_MANUAL,
+
+	/*
+	 * Always the end
+	 */
+	RDMA_COUNTER_MODE_MAX,
+};
+
+/*
+ * Supported criteria in counter auto mode.
+ * Currently only "qp type" is supported
+ */
+enum rdma_nl_counter_mask {
+	RDMA_COUNTER_MASK_QP_TYPE = 1,
+};
 #endif /* _UAPI_RDMA_NETLINK_H */
diff --git a/include/uapi/rdma/rdma_user_ioctl_cmds.h b/include/uapi/rdma/rdma_user_ioctl_cmds.h
index 26213f49f5c8ea..64c14cb0022fa0 100644
--- a/include/uapi/rdma/rdma_user_ioctl_cmds.h
+++ b/include/uapi/rdma/rdma_user_ioctl_cmds.h
@@ -103,6 +103,7 @@ enum rdma_driver_id {
 	RDMA_DRIVER_HFI1,
 	RDMA_DRIVER_QIB,
 	RDMA_DRIVER_EFA,
+	RDMA_DRIVER_SIW,
 };
 
 #endif
diff --git a/include/uapi/rdma/rvt-abi.h b/include/uapi/rdma/rvt-abi.h
new file mode 100644
index 00000000000000..7328293c715cfb
--- /dev/null
+++ b/include/uapi/rdma/rvt-abi.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+
+/*
+ * This file contains defines, structures, etc. that are used
+ * to communicate between kernel and user code.
+ */
+
+#ifndef RVT_ABI_USER_H
+#define RVT_ABI_USER_H
+
+#include <linux/types.h>
+#include <rdma/ib_user_verbs.h>
+#ifndef RDMA_ATOMIC_UAPI
+#define RDMA_ATOMIC_UAPI(_type, _name) struct{ _type val; } _name
+#endif
+
+struct rvt_wqe_sge {
+	__aligned_u64 addr;
+	__u32 length;
+	__u32 lkey;
+};
+
+/*
+ * This structure is used to contain the head pointer, tail pointer,
+ * and completion queue entries as a single memory allocation so
+ * it can be mmap'ed into user space.
+ */
+struct rvt_cq_wc {
+	/* index of next entry to fill */
+	RDMA_ATOMIC_UAPI(__u32, head);
+	/* index of next ib_poll_cq() entry */
+	RDMA_ATOMIC_UAPI(__u32, tail);
+
+	/* these are actually size ibcq.cqe + 1 */
+	struct ib_uverbs_wc uqueue[];
+};
+
+/*
+ * Receive work request queue entry.
+ * The size of the sg_list is determined when the QP (or SRQ) is created
+ * and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
+ */
+struct rvt_rwqe {
+	__u64 wr_id;
+	__u8 num_sge;
+	__u8 padding[7];
+	struct rvt_wqe_sge sg_list[];
+};
+
+/*
+ * This structure is used to contain the head pointer, tail pointer,
+ * and receive work queue entries as a single memory allocation so
+ * it can be mmap'ed into user space.
+ * Note that the wq array elements are variable size so you can't
+ * just index into the array to get the N'th element;
+ * use get_rwqe_ptr() for user space and rvt_get_rwqe_ptr()
+ * for kernel space.
+ */
+struct rvt_rwq {
+	/* new work requests posted to the head */
+	RDMA_ATOMIC_UAPI(__u32, head);
+	/* receives pull requests from here. */
+	RDMA_ATOMIC_UAPI(__u32, tail);
+	struct rvt_rwqe wq[];
+};
+#endif /* RVT_ABI_USER_H */
diff --git a/include/uapi/rdma/siw-abi.h b/include/uapi/rdma/siw-abi.h
new file mode 100644
index 00000000000000..3dd8071ace7b33
--- /dev/null
+++ b/include/uapi/rdma/siw-abi.h
@@ -0,0 +1,185 @@
+/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
+
+/* Authors: Bernard Metzler <bmt@zurich.ibm.com> */
+/* Copyright (c) 2008-2019, IBM Corporation */
+
+#ifndef _SIW_USER_H
+#define _SIW_USER_H
+
+#include <linux/types.h>
+
+#define SIW_NODE_DESC_COMMON "Software iWARP stack"
+#define SIW_ABI_VERSION 1
+#define SIW_MAX_SGE 6
+#define SIW_UOBJ_MAX_KEY 0x08FFFF
+#define SIW_INVAL_UOBJ_KEY (SIW_UOBJ_MAX_KEY + 1)
+
+struct siw_uresp_create_cq {
+	__u32 cq_id;
+	__u32 num_cqe;
+	__aligned_u64 cq_key;
+};
+
+struct siw_uresp_create_qp {
+	__u32 qp_id;
+	__u32 num_sqe;
+	__u32 num_rqe;
+	__u32 pad;
+	__aligned_u64 sq_key;
+	__aligned_u64 rq_key;
+};
+
+struct siw_ureq_reg_mr {
+	__u8 stag_key;
+	__u8 reserved[3];
+	__u32 pad;
+};
+
+struct siw_uresp_reg_mr {
+	__u32 stag;
+	__u32 pad;
+};
+
+struct siw_uresp_create_srq {
+	__u32 num_rqe;
+	__u32 pad;
+	__aligned_u64 srq_key;
+};
+
+struct siw_uresp_alloc_ctx {
+	__u32 dev_id;
+	__u32 pad;
+};
+
+enum siw_opcode {
+	SIW_OP_WRITE,
+	SIW_OP_READ,
+	SIW_OP_READ_LOCAL_INV,
+	SIW_OP_SEND,
+	SIW_OP_SEND_WITH_IMM,
+	SIW_OP_SEND_REMOTE_INV,
+
+	/* Unsupported */
+	SIW_OP_FETCH_AND_ADD,
+	SIW_OP_COMP_AND_SWAP,
+
+	SIW_OP_RECEIVE,
+	/* provider internal SQE */
+	SIW_OP_READ_RESPONSE,
+	/*
+	 * below opcodes valid for
+	 * in-kernel clients only
+	 */
+	SIW_OP_INVAL_STAG,
+	SIW_OP_REG_MR,
+	SIW_NUM_OPCODES
+};
+
+/* Keep it same as ibv_sge to allow for memcpy */
+struct siw_sge {
+	__aligned_u64 laddr;
+	__u32 length;
+	__u32 lkey;
+};
+
+/*
+ * Inline data are kept within the work request itself occupying
+ * the space of sge[1] .. sge[n]. Therefore, inline data cannot be
+ * supported if SIW_MAX_SGE is below 2 elements.
+ */
+#define SIW_MAX_INLINE (sizeof(struct siw_sge) * (SIW_MAX_SGE - 1))
+
+#if SIW_MAX_SGE < 2
+#error "SIW_MAX_SGE must be at least 2"
+#endif
+
+enum siw_wqe_flags {
+	SIW_WQE_VALID = 1,
+	SIW_WQE_INLINE = (1 << 1),
+	SIW_WQE_SIGNALLED = (1 << 2),
+	SIW_WQE_SOLICITED = (1 << 3),
+	SIW_WQE_READ_FENCE = (1 << 4),
+	SIW_WQE_REM_INVAL = (1 << 5),
+	SIW_WQE_COMPLETED = (1 << 6)
+};
+
+/* Send Queue Element */
+struct siw_sqe {
+	__aligned_u64 id;
+	__u16 flags;
+	__u8 num_sge;
+	/* Contains enum siw_opcode values */
+	__u8 opcode;
+	__u32 rkey;
+	union {
+		__aligned_u64 raddr;
+		__aligned_u64 base_mr;
+	};
+	union {
+		struct siw_sge sge[SIW_MAX_SGE];
+		__aligned_u64 access;
+	};
+};
+
+/* Receive Queue Element */
+struct siw_rqe {
+	__aligned_u64 id;
+	__u16 flags;
+	__u8 num_sge;
+	/*
+	 * only used by kernel driver,
+	 * ignored if set by user
+	 */
+	__u8 opcode;
+	__u32 unused;
+	struct siw_sge sge[SIW_MAX_SGE];
+};
+
+enum siw_notify_flags {
+	SIW_NOTIFY_NOT = (0),
+	SIW_NOTIFY_SOLICITED = (1 << 0),
+	SIW_NOTIFY_NEXT_COMPLETION = (1 << 1),
+	SIW_NOTIFY_MISSED_EVENTS = (1 << 2),
+	SIW_NOTIFY_ALL = SIW_NOTIFY_SOLICITED | SIW_NOTIFY_NEXT_COMPLETION |
+			 SIW_NOTIFY_MISSED_EVENTS
+};
+
+enum siw_wc_status {
+	SIW_WC_SUCCESS,
+	SIW_WC_LOC_LEN_ERR,
+	SIW_WC_LOC_PROT_ERR,
+	SIW_WC_LOC_QP_OP_ERR,
+	SIW_WC_WR_FLUSH_ERR,
+	SIW_WC_BAD_RESP_ERR,
+	SIW_WC_LOC_ACCESS_ERR,
+	SIW_WC_REM_ACCESS_ERR,
+	SIW_WC_REM_INV_REQ_ERR,
+	SIW_WC_GENERAL_ERR,
+	SIW_NUM_WC_STATUS
+};
+
+struct siw_cqe {
+	__aligned_u64 id;
+	__u8 flags;
+	__u8 opcode;
+	__u16 status;
+	__u32 bytes;
+	union {
+		__aligned_u64 imm_data;
+		__u32 inval_stag;
+	};
+	/* QP number or QP pointer */
+	union {
+		struct ib_qp *base_qp;
+		__aligned_u64 qp_id;
+	};
+};
+
+/*
+ * Shared structure between user and kernel
+ * to control CQ arming.
+ */
+struct siw_cq_ctrl {
+	__aligned_u64 notify;
+};
+#endif