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

Pull rdma updates from Jason Gunthorpe:
 "This has been a fairly typical cycle, with the usual sorts of driver
  updates. Several series continue to come through which improve and
  modernize various parts of the core code, and we finally are starting
  to get the uAPI command interface cleaned up.

   - Various driver fixes for bnxt_re, cxgb3/4, hfi1, hns, i40iw, mlx4,
     mlx5, qib, rxe, usnic

   - Rework the entire syscall flow for uverbs to be able to run over
     ioctl(). Finally getting past the historic bad choice to use
     write() for command execution

   - More functional coverage with the mlx5 'devx' user API

   - Start of the HFI1 series for 'TID RDMA'

   - SRQ support in the hns driver

   - Support for new IBTA defined 2x lane widths

   - A big series to consolidate all the driver function pointers into a
     big struct and have drivers provide a 'static const' version of the
     struct instead of open coding initialization

   - New 'advise_mr' uAPI to control device caching/loading of page
     tables

   - Support for inline data in SRPT

   - Modernize how umad uses the driver core and creates cdev's and
     sysfs files

   - First steps toward removing 'uobject' from the view of the drivers"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (193 commits)
  RDMA/srpt: Use kmem_cache_free() instead of kfree()
  RDMA/mlx5: Signedness bug in UVERBS_HANDLER()
  IB/uverbs: Signedness bug in UVERBS_HANDLER()
  IB/mlx5: Allocate the per-port Q counter shared when DEVX is supported
  IB/umad: Start using dev_groups of class
  IB/umad: Use class_groups and let core create class file
  IB/umad: Refactor code to use cdev_device_add()
  IB/umad: Avoid destroying device while it is accessed
  IB/umad: Simplify and avoid dynamic allocation of class
  IB/mlx5: Fix wrong error unwind
  IB/mlx4: Remove set but not used variable 'pd'
  RDMA/iwcm: Don't copy past the end of dev_name() string
  IB/mlx5: Fix long EEH recover time with NVMe offloads
  IB/mlx5: Simplify netdev unbinding
  IB/core: Move query port to ioctl
  RDMA/nldev: Expose port_cap_flags2
  IB/core: uverbs copy to struct or zero helper
  IB/rxe: Reuse code which sets port state
  IB/rxe: Make counters thread safe
  IB/mlx5: Use the correct commands for UMEM and UCTX allocation
  ...

8 files changed, 129 insertions, 7 deletions

diff --git a/include/uapi/rdma/hfi/hfi1_user.h b/include/uapi/rdma/hfi/hfi1_user.h
index c6a984c0c881..01ac5853d9ac 100644
--- a/include/uapi/rdma/hfi/hfi1_user.h
+++ b/include/uapi/rdma/hfi/hfi1_user.h
@@ -6,7 +6,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2015 Intel Corporation.
+ * Copyright(c) 2015 - 2018 Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -95,7 +95,7 @@
 #define HFI1_CAP_SDMA_AHG         (1UL <<  2) /* Enable SDMA AHG support */
 #define HFI1_CAP_EXTENDED_PSN     (1UL <<  3) /* Enable Extended PSN support */
 #define HFI1_CAP_HDRSUPP          (1UL <<  4) /* Enable Header Suppression */
-/* 1UL << 5 unused */
+#define HFI1_CAP_TID_RDMA         (1UL <<  5) /* Enable TID RDMA operations */
 #define HFI1_CAP_USE_SDMA_HEAD    (1UL <<  6) /* DMA Hdr Q tail vs. use CSR */
 #define HFI1_CAP_MULTI_PKT_EGR    (1UL <<  7) /* Enable multi-packet Egr buffs*/
 #define HFI1_CAP_NODROP_RHQ_FULL  (1UL <<  8) /* Don't drop on Hdr Q full */
@@ -106,7 +106,7 @@
 #define HFI1_CAP_NO_INTEGRITY     (1UL << 13) /* Enable ctxt integrity checks */
 #define HFI1_CAP_PKEY_CHECK       (1UL << 14) /* Enable ctxt PKey checking */
 #define HFI1_CAP_STATIC_RATE_CTRL (1UL << 15) /* Allow PBC.StaticRateControl */
-/* 1UL << 16 unused */
+#define HFI1_CAP_OPFN             (1UL << 16) /* Enable the OPFN protocol */
 #define HFI1_CAP_SDMA_HEAD_CHECK  (1UL << 17) /* SDMA head checking */
 #define HFI1_CAP_EARLY_CREDIT_RETURN (1UL << 18) /* early credit return */
 
diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h
index c1f87735514f..ef3c7ec793a7 100644
--- a/include/uapi/rdma/hns-abi.h
+++ b/include/uapi/rdma/hns-abi.h
@@ -46,6 +46,12 @@ struct hns_roce_ib_create_cq_resp {
 	__aligned_u64 cap_flags;
 };
 
+struct hns_roce_ib_create_srq {
+	__aligned_u64 buf_addr;
+	__aligned_u64 db_addr;
+	__aligned_u64 que_addr;
+};
+
 struct hns_roce_ib_create_qp {
 	__aligned_u64 buf_addr;
 	__aligned_u64 db_addr;
diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h
index 2c881aaf05c2..64f0e3aacd3f 100644
--- a/include/uapi/rdma/ib_user_ioctl_cmds.h
+++ b/include/uapi/rdma/ib_user_ioctl_cmds.h
@@ -63,6 +63,23 @@ enum {
 	UVERBS_ATTR_UHW_OUT,
 };
 
+enum uverbs_methods_device {
+	UVERBS_METHOD_INVOKE_WRITE,
+	UVERBS_METHOD_INFO_HANDLES,
+	UVERBS_METHOD_QUERY_PORT,
+};
+
+enum uverbs_attrs_invoke_write_cmd_attr_ids {
+	UVERBS_ATTR_CORE_IN,
+	UVERBS_ATTR_CORE_OUT,
+	UVERBS_ATTR_WRITE_CMD,
+};
+
+enum uverbs_attrs_query_port_cmd_attr_ids {
+	UVERBS_ATTR_QUERY_PORT_PORT_NUM,
+	UVERBS_ATTR_QUERY_PORT_RESP,
+};
+
 enum uverbs_attrs_create_cq_cmd_attr_ids {
 	UVERBS_ATTR_CREATE_CQ_HANDLE,
 	UVERBS_ATTR_CREATE_CQ_CQE,
@@ -135,6 +152,19 @@ enum uverbs_attrs_reg_dm_mr_cmd_attr_ids {
 
 enum uverbs_methods_mr {
 	UVERBS_METHOD_DM_MR_REG,
+	UVERBS_METHOD_MR_DESTROY,
+	UVERBS_METHOD_ADVISE_MR,
+};
+
+enum uverbs_attrs_mr_destroy_ids {
+	UVERBS_ATTR_DESTROY_MR_HANDLE,
+};
+
+enum uverbs_attrs_advise_mr_cmd_attr_ids {
+	UVERBS_ATTR_ADVISE_MR_PD_HANDLE,
+	UVERBS_ATTR_ADVISE_MR_ADVICE,
+	UVERBS_ATTR_ADVISE_MR_FLAGS,
+	UVERBS_ATTR_ADVISE_MR_SGE_LIST,
 };
 
 enum uverbs_attrs_create_counters_cmd_attr_ids {
@@ -157,4 +187,58 @@ enum uverbs_methods_actions_counters_ops {
 	UVERBS_METHOD_COUNTERS_READ,
 };
 
+enum uverbs_attrs_info_handles_id {
+	UVERBS_ATTR_INFO_OBJECT_ID,
+	UVERBS_ATTR_INFO_TOTAL_HANDLES,
+	UVERBS_ATTR_INFO_HANDLES_LIST,
+};
+
+enum uverbs_methods_pd {
+	UVERBS_METHOD_PD_DESTROY,
+};
+
+enum uverbs_attrs_pd_destroy_ids {
+	UVERBS_ATTR_DESTROY_PD_HANDLE,
+};
+
+enum uverbs_methods_mw {
+	UVERBS_METHOD_MW_DESTROY,
+};
+
+enum uverbs_attrs_mw_destroy_ids {
+	UVERBS_ATTR_DESTROY_MW_HANDLE,
+};
+
+enum uverbs_methods_xrcd {
+	UVERBS_METHOD_XRCD_DESTROY,
+};
+
+enum uverbs_attrs_xrcd_destroy_ids {
+	UVERBS_ATTR_DESTROY_XRCD_HANDLE,
+};
+
+enum uverbs_methods_ah {
+	UVERBS_METHOD_AH_DESTROY,
+};
+
+enum uverbs_attrs_ah_destroy_ids {
+	UVERBS_ATTR_DESTROY_AH_HANDLE,
+};
+
+enum uverbs_methods_rwq_ind_tbl {
+	UVERBS_METHOD_RWQ_IND_TBL_DESTROY,
+};
+
+enum uverbs_attrs_rwq_ind_tbl_destroy_ids {
+	UVERBS_ATTR_DESTROY_RWQ_IND_TBL_HANDLE,
+};
+
+enum uverbs_methods_flow {
+	UVERBS_METHOD_FLOW_DESTROY,
+};
+
+enum uverbs_attrs_flow_destroy_ids {
+	UVERBS_ATTR_DESTROY_FLOW_HANDLE,
+};
+
 #endif
diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h
index 6cdf192070a2..72c7fc75f960 100644
--- a/include/uapi/rdma/ib_user_ioctl_verbs.h
+++ b/include/uapi/rdma/ib_user_ioctl_verbs.h
@@ -35,6 +35,7 @@
 #define IB_USER_IOCTL_VERBS_H
 
 #include <linux/types.h>
+#include <rdma/ib_user_verbs.h>
 
 #ifndef RDMA_UAPI_PTR
 #define RDMA_UAPI_PTR(_type, _name)	__aligned_u64 _name
@@ -157,4 +158,19 @@ enum ib_uverbs_read_counters_flags {
 	IB_UVERBS_READ_COUNTERS_PREFER_CACHED = 1 << 0,
 };
 
+enum ib_uverbs_advise_mr_advice {
+	IB_UVERBS_ADVISE_MR_ADVICE_PREFETCH,
+	IB_UVERBS_ADVISE_MR_ADVICE_PREFETCH_WRITE,
+};
+
+enum ib_uverbs_advise_mr_flag {
+	IB_UVERBS_ADVISE_MR_FLAG_FLUSH = 1 << 0,
+};
+
+struct ib_uverbs_query_port_resp_ex {
+	struct ib_uverbs_query_port_resp legacy_resp;
+	__u16 port_cap_flags2;
+	__u8  reserved[6];
+};
+
 #endif
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 1254b51a551a..480d9a60b68e 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -46,7 +46,7 @@
 #define IB_USER_VERBS_ABI_VERSION	6
 #define IB_USER_VERBS_CMD_THRESHOLD    50
 
-enum {
+enum ib_uverbs_write_cmds {
 	IB_USER_VERBS_CMD_GET_CONTEXT,
 	IB_USER_VERBS_CMD_QUERY_DEVICE,
 	IB_USER_VERBS_CMD_QUERY_PORT,
@@ -164,6 +164,7 @@ struct ib_uverbs_get_context {
 struct ib_uverbs_get_context_resp {
 	__u32 async_fd;
 	__u32 num_comp_vectors;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_query_device {
@@ -310,6 +311,7 @@ struct ib_uverbs_alloc_pd {
 
 struct ib_uverbs_alloc_pd_resp {
 	__u32 pd_handle;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_dealloc_pd {
@@ -325,6 +327,7 @@ struct ib_uverbs_open_xrcd {
 
 struct ib_uverbs_open_xrcd_resp {
 	__u32 xrcd_handle;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_close_xrcd {
@@ -345,6 +348,7 @@ struct ib_uverbs_reg_mr_resp {
 	__u32 mr_handle;
 	__u32 lkey;
 	__u32 rkey;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_rereg_mr {
@@ -356,11 +360,13 @@ struct ib_uverbs_rereg_mr {
 	__aligned_u64 hca_va;
 	__u32 pd_handle;
 	__u32 access_flags;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_rereg_mr_resp {
 	__u32 lkey;
 	__u32 rkey;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_dereg_mr {
@@ -372,11 +378,13 @@ struct ib_uverbs_alloc_mw {
 	__u32 pd_handle;
 	__u8  mw_type;
 	__u8  reserved[3];
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_alloc_mw_resp {
 	__u32 mw_handle;
 	__u32 rkey;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_dealloc_mw {
@@ -419,6 +427,7 @@ struct ib_uverbs_ex_create_cq {
 struct ib_uverbs_create_cq_resp {
 	__u32 cq_handle;
 	__u32 cqe;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_ex_create_cq_resp {
@@ -629,6 +638,7 @@ struct ib_uverbs_create_qp_resp {
 	__u32 max_recv_sge;
 	__u32 max_inline_data;
 	__u32 reserved;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_ex_create_qp_resp {
@@ -733,9 +743,6 @@ struct ib_uverbs_ex_modify_qp {
 	__u32	reserved;
 };
 
-struct ib_uverbs_modify_qp_resp {
-};
-
 struct ib_uverbs_ex_modify_qp_resp {
 	__u32  comp_mask;
 	__u32  response_length;
@@ -863,10 +870,12 @@ struct ib_uverbs_create_ah {
 	__u32 pd_handle;
 	__u32 reserved;
 	struct ib_uverbs_ah_attr attr;
+	__aligned_u64 driver_data[0];
 };
 
 struct ib_uverbs_create_ah_resp {
 	__u32 ah_handle;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_destroy_ah {
@@ -1175,6 +1184,7 @@ struct ib_uverbs_create_srq_resp {
 	__u32 max_wr;
 	__u32 max_sge;
 	__u32 srqn;
+	__u32 driver_data[0];
 };
 
 struct ib_uverbs_modify_srq {
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index 8fa9f90e2bb1..87b3198f4b5d 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -48,6 +48,7 @@ enum {
 	MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC = 1 << 6,
 	MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC = 1 << 7,
 	MLX5_QP_FLAG_ALLOW_SCATTER_CQE	= 1 << 8,
+	MLX5_QP_FLAG_PACKET_BASED_CREDIT_MODE	= 1 << 9,
 };
 
 enum {
@@ -236,6 +237,7 @@ enum mlx5_ib_query_dev_resp_flags {
 	/* Support 128B CQE compression */
 	MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP = 1 << 0,
 	MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD  = 1 << 1,
+	MLX5_IB_QUERY_DEV_RESP_PACKET_BASED_CREDIT_MODE = 1 << 2,
 };
 
 enum mlx5_ib_tunnel_offloads {
diff --git a/include/uapi/rdma/mlx5_user_ioctl_cmds.h b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
index 408e220034de..b8d121d457f1 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_cmds.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
@@ -158,6 +158,7 @@ enum mlx5_ib_create_flow_attrs {
 	MLX5_IB_ATTR_CREATE_FLOW_MATCHER,
 	MLX5_IB_ATTR_CREATE_FLOW_ARR_FLOW_ACTIONS,
 	MLX5_IB_ATTR_CREATE_FLOW_TAG,
+	MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
 };
 
 enum mlx5_ib_destoy_flow_attrs {
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index f9c41bf59efc..2e18b77a817f 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -283,6 +283,9 @@ enum rdma_nldev_attr {
 
 	/*
 	 * Device and port capabilities
+	 *
+	 * When used for port info, first 32-bits are CapabilityMask followed by
+	 * 16-bit CapabilityMask2.
 	 */
 	RDMA_NLDEV_ATTR_CAP_FLAGS,		/* u64 */