[RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[Leon Romanovsky]

The consolidate library revealed the fact that vendor specific
structures and defines are copy/pasted between kernel and user-space,
instead of sharing.

This RFC was tested by compilation only and not-ready for merge yet.

Leon Romanovsky (3):
  IB/mlx5: Move and decouple user vendor structures
  IB/core: Export mlx5 vendor specific strucutres
  MAINTAINERS: Add mlx5 uapi file

 MAINTAINERS                            |   1 +
 drivers/infiniband/hw/mlx5/cq.c        |   1 -
 drivers/infiniband/hw/mlx5/main.c      |   1 -
 drivers/infiniband/hw/mlx5/mlx5_ib.h   |  37 +++++
 drivers/infiniband/hw/mlx5/mr.c        |   1 -
 drivers/infiniband/hw/mlx5/qp.c        |   1 -
 drivers/infiniband/hw/mlx5/srq.c       |   1 -
 drivers/infiniband/hw/mlx5/user.h      | 281 ---------------------------------
 include/uapi/rdma/Kbuild               |   1 +
 include/uapi/rdma/providers/Kbuild     |   2 +
 include/uapi/rdma/providers/mlx5-abi.h | 242 ++++++++++++++++++++++++++++
 11 files changed, 283 insertions(+), 286 deletions(-)
 delete mode 100644 drivers/infiniband/hw/mlx5/user.h
 create mode 100644 include/uapi/rdma/providers/Kbuild
 create mode 100644 include/uapi/rdma/providers/mlx5-abi.h

--
2.7.4

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[RFC rdma-next 1/3] IB/mlx5: Move and decouple user vendor structures

[Leon Romanovsky]

This patch decouples and moves vendors specific structures to
common UAPI folder which will be visible to all consumers.

These structures are used by user-space library driver
(libmlx5) and currently manually copied to that library.

This move will allow cross-compile against these files and
simplify introduction of vendor specific data.

Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 drivers/infiniband/hw/mlx5/cq.c        |   1 -
 drivers/infiniband/hw/mlx5/main.c      |   1 -
 drivers/infiniband/hw/mlx5/mlx5_ib.h   |  37 +++++
 drivers/infiniband/hw/mlx5/mr.c        |   1 -
 drivers/infiniband/hw/mlx5/qp.c        |   1 -
 drivers/infiniband/hw/mlx5/srq.c       |   1 -
 drivers/infiniband/hw/mlx5/user.h      | 281 ---------------------------------
 include/uapi/rdma/providers/mlx5-abi.h | 242 ++++++++++++++++++++++++++++
 8 files changed, 279 insertions(+), 286 deletions(-)
 delete mode 100644 drivers/infiniband/hw/mlx5/user.h
 create mode 100644 include/uapi/rdma/providers/mlx5-abi.h

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 308a358..20a6184 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -35,7 +35,6 @@
 #include <rdma/ib_user_verbs.h>
 #include <rdma/ib_cache.h>
 #include "mlx5_ib.h"
-#include "user.h"

 static void mlx5_ib_cq_comp(struct mlx5_core_cq *cq)
 {
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 1b4094b..30354ce 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -53,7 +53,6 @@
 #include <linux/in.h>
 #include <linux/etherdevice.h>
 #include <linux/mlx5/fs.h>
-#include "user.h"
 #include "mlx5_ib.h"

 #define DRIVER_NAME "mlx5_ib"
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 372385d..b8e349a 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -44,6 +44,7 @@
 #include <linux/types.h>
 #include <linux/mlx5/transobj.h>
 #include <rdma/ib_user_verbs.h>
+#include <rdma/providers/mlx5-abi.h>

 #define mlx5_ib_dbg(dev, format, arg...)				\
 pr_debug("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__,	\
@@ -946,4 +947,40 @@ static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx,

 	return 0;
 }
+
+static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
+				    struct mlx5_ib_create_qp *ucmd,
+				    int inlen,
+				    u32 *user_index)
+{
+	u8 cqe_version = ucontext->cqe_version;
+
+	if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
+	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
+		return 0;
+
+	if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
+	       !!cqe_version))
+		return -EINVAL;
+
+	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
+}
+
+static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
+				     struct mlx5_ib_create_srq *ucmd,
+				     int inlen,
+				     u32 *user_index)
+{
+	u8 cqe_version = ucontext->cqe_version;
+
+	if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
+	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
+		return 0;
+
+	if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
+	       !!cqe_version))
+		return -EINVAL;
+
+	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
+}
 #endif /* MLX5_IB_H */
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 4b02130..0cd22cb 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -40,7 +40,6 @@
 #include <rdma/ib_umem_odp.h>
 #include <rdma/ib_verbs.h>
 #include "mlx5_ib.h"
-#include "user.h"

 enum {
 	MAX_PENDING_REG_MR = 8,
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 0dd7d93..8c76531 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -35,7 +35,6 @@
 #include <rdma/ib_cache.h>
 #include <rdma/ib_user_verbs.h>
 #include "mlx5_ib.h"
-#include "user.h"

 /* not supported currently */
 static int wq_signature;
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index ed6ac52..3857dbd 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -38,7 +38,6 @@
 #include <rdma/ib_user_verbs.h>

 #include "mlx5_ib.h"
-#include "user.h"

 /* not supported currently */
 static int srq_signature;
diff --git a/drivers/infiniband/hw/mlx5/user.h b/drivers/infiniband/hw/mlx5/user.h
deleted file mode 100644
index 188dac4..0000000
--- a/drivers/infiniband/hw/mlx5/user.h
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_IB_USER_H
-#define MLX5_IB_USER_H
-
-#include <linux/types.h>
-
-#include "mlx5_ib.h"
-
-enum {
-	MLX5_QP_FLAG_SIGNATURE		= 1 << 0,
-	MLX5_QP_FLAG_SCATTER_CQE	= 1 << 1,
-};
-
-enum {
-	MLX5_SRQ_FLAG_SIGNATURE		= 1 << 0,
-};
-
-enum {
-	MLX5_WQ_FLAG_SIGNATURE		= 1 << 0,
-};
-
-
-/* Increment this value if any changes that break userspace ABI
- * compatibility are made.
- */
-#define MLX5_IB_UVERBS_ABI_VERSION	1
-
-/* Make sure that all structs defined in this file remain laid out so
- * that they pack the same way on 32-bit and 64-bit architectures (to
- * avoid incompatibility between 32-bit userspace and 64-bit kernels).
- * In particular do not use pointer types -- pass pointers in __u64
- * instead.
- */
-
-struct mlx5_ib_alloc_ucontext_req {
-	__u32	total_num_uuars;
-	__u32	num_low_latency_uuars;
-};
-
-struct mlx5_ib_alloc_ucontext_req_v2 {
-	__u32	total_num_uuars;
-	__u32	num_low_latency_uuars;
-	__u32	flags;
-	__u32	comp_mask;
-	__u8	max_cqe_version;
-	__u8	reserved0;
-	__u16	reserved1;
-	__u32	reserved2;
-};
-
-enum mlx5_ib_alloc_ucontext_resp_mask {
-	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
-};
-
-enum mlx5_user_cmds_supp_uhw {
-	MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0,
-};
-
-struct mlx5_ib_alloc_ucontext_resp {
-	__u32	qp_tab_size;
-	__u32	bf_reg_size;
-	__u32	tot_uuars;
-	__u32	cache_line_size;
-	__u16	max_sq_desc_sz;
-	__u16	max_rq_desc_sz;
-	__u32	max_send_wqebb;
-	__u32	max_recv_wr;
-	__u32	max_srq_recv_wr;
-	__u16	num_ports;
-	__u16	reserved1;
-	__u32	comp_mask;
-	__u32	response_length;
-	__u8	cqe_version;
-	__u8	cmds_supp_uhw;
-	__u16	reserved2;
-	__u64	hca_core_clock_offset;
-};
-
-struct mlx5_ib_alloc_pd_resp {
-	__u32	pdn;
-};
-
-struct mlx5_ib_tso_caps {
-	__u32 max_tso; /* Maximum tso payload size in bytes */
-
-	/* Corresponding bit will be set if qp type from
-	 * 'enum ib_qp_type' is supported, e.g.
-	 * supported_qpts |= 1 << IB_QPT_UD
-	 */
-	__u32 supported_qpts;
-};
-
-struct mlx5_ib_query_device_resp {
-	__u32	comp_mask;
-	__u32	response_length;
-	struct	mlx5_ib_tso_caps tso_caps;
-};
-
-struct mlx5_ib_create_cq {
-	__u64	buf_addr;
-	__u64	db_addr;
-	__u32	cqe_size;
-	__u32	reserved; /* explicit padding (optional on i386) */
-};
-
-struct mlx5_ib_create_cq_resp {
-	__u32	cqn;
-	__u32	reserved;
-};
-
-struct mlx5_ib_resize_cq {
-	__u64	buf_addr;
-	__u16	cqe_size;
-	__u16	reserved0;
-	__u32	reserved1;
-};
-
-struct mlx5_ib_create_srq {
-	__u64	buf_addr;
-	__u64	db_addr;
-	__u32	flags;
-	__u32	reserved0; /* explicit padding (optional on i386) */
-	__u32	uidx;
-	__u32	reserved1;
-};
-
-struct mlx5_ib_create_srq_resp {
-	__u32	srqn;
-	__u32	reserved;
-};
-
-struct mlx5_ib_create_qp {
-	__u64	buf_addr;
-	__u64	db_addr;
-	__u32	sq_wqe_count;
-	__u32	rq_wqe_count;
-	__u32	rq_wqe_shift;
-	__u32	flags;
-	__u32	uidx;
-	__u32	reserved0;
-	__u64	sq_buf_addr;
-};
-
-/* RX Hash function flags */
-enum mlx5_rx_hash_function_flags {
-	MLX5_RX_HASH_FUNC_TOEPLITZ	= 1 << 0,
-};
-
-/*
- * RX Hash flags, these flags allows to set which incoming packet's field should
- * participates in RX Hash. Each flag represent certain packet's field,
- * when the flag is set the field that is represented by the flag will
- * participate in RX Hash calculation.
- * Note: *IPV4 and *IPV6 flags can't be enabled together on the same QP
- * and *TCP and *UDP flags can't be enabled together on the same QP.
-*/
-enum mlx5_rx_hash_fields {
-	MLX5_RX_HASH_SRC_IPV4	= 1 << 0,
-	MLX5_RX_HASH_DST_IPV4	= 1 << 1,
-	MLX5_RX_HASH_SRC_IPV6	= 1 << 2,
-	MLX5_RX_HASH_DST_IPV6	= 1 << 3,
-	MLX5_RX_HASH_SRC_PORT_TCP	= 1 << 4,
-	MLX5_RX_HASH_DST_PORT_TCP	= 1 << 5,
-	MLX5_RX_HASH_SRC_PORT_UDP	= 1 << 6,
-	MLX5_RX_HASH_DST_PORT_UDP	= 1 << 7
-};
-
-struct mlx5_ib_create_qp_rss {
-	__u64 rx_hash_fields_mask; /* enum mlx5_rx_hash_fields */
-	__u8 rx_hash_function; /* enum mlx5_rx_hash_function_flags */
-	__u8 rx_key_len; /* valid only for Toeplitz */
-	__u8 reserved[6];
-	__u8 rx_hash_key[128]; /* valid only for Toeplitz */
-	__u32   comp_mask;
-	__u32   reserved1;
-};
-
-struct mlx5_ib_create_qp_resp {
-	__u32	uuar_index;
-};
-
-struct mlx5_ib_alloc_mw {
-	__u32	comp_mask;
-	__u8	num_klms;
-	__u8	reserved1;
-	__u16	reserved2;
-};
-
-struct mlx5_ib_create_wq {
-	__u64   buf_addr;
-	__u64   db_addr;
-	__u32   rq_wqe_count;
-	__u32   rq_wqe_shift;
-	__u32   user_index;
-	__u32   flags;
-	__u32   comp_mask;
-	__u32   reserved;
-};
-
-struct mlx5_ib_create_wq_resp {
-	__u32	response_length;
-	__u32	reserved;
-};
-
-struct mlx5_ib_create_rwq_ind_tbl_resp {
-	__u32	response_length;
-	__u32	reserved;
-};
-
-struct mlx5_ib_modify_wq {
-	__u32	comp_mask;
-	__u32	reserved;
-};
-
-static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext,
-				    struct mlx5_ib_create_qp *ucmd,
-				    int inlen,
-				    u32 *user_index)
-{
-	u8 cqe_version = ucontext->cqe_version;
-
-	if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) &&
-	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
-		return 0;
-
-	if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) !=
-	       !!cqe_version))
-		return -EINVAL;
-
-	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
-}
-
-static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
-				     struct mlx5_ib_create_srq *ucmd,
-				     int inlen,
-				     u32 *user_index)
-{
-	u8 cqe_version = ucontext->cqe_version;
-
-	if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) &&
-	    !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX))
-		return 0;
-
-	if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) !=
-	       !!cqe_version))
-		return -EINVAL;
-
-	return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
-}
-#endif /* MLX5_IB_USER_H */
diff --git a/include/uapi/rdma/providers/mlx5-abi.h b/include/uapi/rdma/providers/mlx5-abi.h
new file mode 100644
index 0000000..437fa14
--- /dev/null
+++ b/include/uapi/rdma/providers/mlx5-abi.h
@@ -0,0 +1,242 @@
+/*
+ * Copyright (c) 2013-2015, Mellanox Technologies. 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 MLX5_ABI_USER_H
+#define MLX5_ABI_USER_H
+
+enum {
+	MLX5_QP_FLAG_SIGNATURE		= 1 << 0,
+	MLX5_QP_FLAG_SCATTER_CQE	= 1 << 1,
+};
+
+enum {
+	MLX5_SRQ_FLAG_SIGNATURE		= 1 << 0,
+};
+
+enum {
+	MLX5_WQ_FLAG_SIGNATURE		= 1 << 0,
+};
+
+
+/* Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define MLX5_IB_UVERBS_ABI_VERSION	1
+
+/* Make sure that all structs defined in this file remain laid out so
+ * that they pack the same way on 32-bit and 64-bit architectures (to
+ * avoid incompatibility between 32-bit userspace and 64-bit kernels).
+ * In particular do not use pointer types -- pass pointers in __u64
+ * instead.
+ */
+
+struct mlx5_ib_alloc_ucontext_req {
+	__u32	total_num_uuars;
+	__u32	num_low_latency_uuars;
+};
+
+struct mlx5_ib_alloc_ucontext_req_v2 {
+	__u32	total_num_uuars;
+	__u32	num_low_latency_uuars;
+	__u32	flags;
+	__u32	comp_mask;
+	__u8	max_cqe_version;
+	__u8	reserved0;
+	__u16	reserved1;
+	__u32	reserved2;
+};
+
+enum mlx5_ib_alloc_ucontext_resp_mask {
+	MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
+};
+
+enum mlx5_user_cmds_supp_uhw {
+	MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE = 1 << 0,
+};
+
+struct mlx5_ib_alloc_ucontext_resp {
+	__u32	qp_tab_size;
+	__u32	bf_reg_size;
+	__u32	tot_uuars;
+	__u32	cache_line_size;
+	__u16	max_sq_desc_sz;
+	__u16	max_rq_desc_sz;
+	__u32	max_send_wqebb;
+	__u32	max_recv_wr;
+	__u32	max_srq_recv_wr;
+	__u16	num_ports;
+	__u16	reserved1;
+	__u32	comp_mask;
+	__u32	response_length;
+	__u8	cqe_version;
+	__u8	cmds_supp_uhw;
+	__u16	reserved2;
+	__u64	hca_core_clock_offset;
+};
+
+struct mlx5_ib_alloc_pd_resp {
+	__u32	pdn;
+};
+
+struct mlx5_ib_tso_caps {
+	__u32 max_tso; /* Maximum tso payload size in bytes */
+
+	/* Corresponding bit will be set if qp type from
+	 * 'enum ib_qp_type' is supported, e.g.
+	 * supported_qpts |= 1 << IB_QPT_UD
+	 */
+	__u32 supported_qpts;
+};
+
+struct mlx5_ib_query_device_resp {
+	__u32	comp_mask;
+	__u32	response_length;
+	struct	mlx5_ib_tso_caps tso_caps;
+};
+
+struct mlx5_ib_create_cq {
+	__u64	buf_addr;
+	__u64	db_addr;
+	__u32	cqe_size;
+	__u32	reserved; /* explicit padding (optional on i386) */
+};
+
+struct mlx5_ib_create_cq_resp {
+	__u32	cqn;
+	__u32	reserved;
+};
+
+struct mlx5_ib_resize_cq {
+	__u64	buf_addr;
+	__u16	cqe_size;
+	__u16	reserved0;
+	__u32	reserved1;
+};
+
+struct mlx5_ib_create_srq {
+	__u64	buf_addr;
+	__u64	db_addr;
+	__u32	flags;
+	__u32	reserved0; /* explicit padding (optional on i386) */
+	__u32	uidx;
+	__u32	reserved1;
+};
+
+struct mlx5_ib_create_srq_resp {
+	__u32	srqn;
+	__u32	reserved;
+};
+
+struct mlx5_ib_create_qp {
+	__u64	buf_addr;
+	__u64	db_addr;
+	__u32	sq_wqe_count;
+	__u32	rq_wqe_count;
+	__u32	rq_wqe_shift;
+	__u32	flags;
+	__u32	uidx;
+	__u32	reserved0;
+	__u64	sq_buf_addr;
+};
+
+/* RX Hash function flags */
+enum mlx5_rx_hash_function_flags {
+	MLX5_RX_HASH_FUNC_TOEPLITZ	= 1 << 0,
+};
+
+/*
+ * RX Hash flags, these flags allows to set which incoming packet's field should
+ * participates in RX Hash. Each flag represent certain packet's field,
+ * when the flag is set the field that is represented by the flag will
+ * participate in RX Hash calculation.
+ * Note: *IPV4 and *IPV6 flags can't be enabled together on the same QP
+ * and *TCP and *UDP flags can't be enabled together on the same QP.
+*/
+enum mlx5_rx_hash_fields {
+	MLX5_RX_HASH_SRC_IPV4	= 1 << 0,
+	MLX5_RX_HASH_DST_IPV4	= 1 << 1,
+	MLX5_RX_HASH_SRC_IPV6	= 1 << 2,
+	MLX5_RX_HASH_DST_IPV6	= 1 << 3,
+	MLX5_RX_HASH_SRC_PORT_TCP	= 1 << 4,
+	MLX5_RX_HASH_DST_PORT_TCP	= 1 << 5,
+	MLX5_RX_HASH_SRC_PORT_UDP	= 1 << 6,
+	MLX5_RX_HASH_DST_PORT_UDP	= 1 << 7
+};
+
+struct mlx5_ib_create_qp_rss {
+	__u64 rx_hash_fields_mask; /* enum mlx5_rx_hash_fields */
+	__u8 rx_hash_function; /* enum mlx5_rx_hash_function_flags */
+	__u8 rx_key_len; /* valid only for Toeplitz */
+	__u8 reserved[6];
+	__u8 rx_hash_key[128]; /* valid only for Toeplitz */
+	__u32   comp_mask;
+	__u32   reserved1;
+};
+
+struct mlx5_ib_create_qp_resp {
+	__u32	uuar_index;
+};
+
+struct mlx5_ib_alloc_mw {
+	__u32	comp_mask;
+	__u8	num_klms;
+	__u8	reserved1;
+	__u16	reserved2;
+};
+
+struct mlx5_ib_create_wq {
+	__u64   buf_addr;
+	__u64   db_addr;
+	__u32   rq_wqe_count;
+	__u32   rq_wqe_shift;
+	__u32   user_index;
+	__u32   flags;
+	__u32   comp_mask;
+	__u32   reserved;
+};
+
+struct mlx5_ib_create_wq_resp {
+	__u32	response_length;
+	__u32	reserved;
+};
+
+struct mlx5_ib_create_rwq_ind_tbl_resp {
+	__u32	response_length;
+	__u32	reserved;
+};
+
+struct mlx5_ib_modify_wq {
+	__u32	comp_mask;
+	__u32	reserved;
+};
+
+#endif /* MLX5_ABI_USER_H */
--
2.7.4

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[RFC rdma-next 2/3] IB/core: Export mlx5 vendor specific strucutres

[Leon Romanovsky]

Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 include/uapi/rdma/Kbuild           | 1 +
 include/uapi/rdma/providers/Kbuild | 2 ++
 2 files changed, 3 insertions(+)
 create mode 100644 include/uapi/rdma/providers/Kbuild

diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild
index 4edb0f2..e804cc3 100644
--- a/include/uapi/rdma/Kbuild
+++ b/include/uapi/rdma/Kbuild
@@ -7,3 +7,4 @@ header-y += rdma_netlink.h
 header-y += rdma_user_cm.h
 header-y += hfi/
 header-y += rdma_user_rxe.h
+header-y += providers/
diff --git a/include/uapi/rdma/providers/Kbuild b/include/uapi/rdma/providers/Kbuild
new file mode 100644
index 0000000..d863744
--- /dev/null
+++ b/include/uapi/rdma/providers/Kbuild
@@ -0,0 +1,2 @@
+# UAPI Header export list
+header-y += mlx5-abi.h
--
2.7.4

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[RFC rdma-next 3/3] MAINTAINERS: Add mlx5 uapi file

[Leon Romanovsky]

Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index db814a8..f0b82b9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7828,6 +7828,7 @@ Q:	http://patchwork.kernel.org/project/linux-rdma/list/
 S:	Supported
 F:	drivers/infiniband/hw/mlx5/
 F:	include/linux/mlx5/
+F:	include/uapi/rdma/providers/mlx5-abi.h

 MELEXIS MLX90614 DRIVER
 M:	Crt Mori <cmo-fc6wVz46lShBDgjK7y7TUQ@public.gmane.org>
--
2.7.4

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Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[Jason Gunthorpe]

On Wed, Sep 14, 2016 at 11:27:26AM +0300, Leon Romanovsky wrote:
> The consolidate library revealed the fact that vendor specific
> structures and defines are copy/pasted between kernel and user-space,
> instead of sharing.
> 
> This RFC was tested by compilation only and not-ready for merge yet.

Yah, this is exactly what I had in mind. We need to give this
treatment to all the drivers :|

> Leon Romanovsky (3):
>   IB/mlx5: Move and decouple user vendor structures
>   IB/core: Export mlx5 vendor specific strucutres
>   MAINTAINERS: Add mlx5 uapi file

One patch is probably enough, 3 patches per driver is going to be
alot.

Jason
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Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[Laurence Oberman]

----- Original Message -----
> From: "Jason Gunthorpe" <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
> To: "Leon Romanovsky" <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Sent: Wednesday, September 14, 2016 1:21:45 PM
> Subject: Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory
> 
> On Wed, Sep 14, 2016 at 11:27:26AM +0300, Leon Romanovsky wrote:
> > The consolidate library revealed the fact that vendor specific
> > structures and defines are copy/pasted between kernel and user-space,
> > instead of sharing.
> > 
> > This RFC was tested by compilation only and not-ready for merge yet.
> 
> Yah, this is exactly what I had in mind. We need to give this
> treatment to all the drivers :|
> 
> > Leon Romanovsky (3):
> >   IB/mlx5: Move and decouple user vendor structures
> >   IB/core: Export mlx5 vendor specific strucutres
> >   MAINTAINERS: Add mlx5 uapi file
> 
> One patch is probably enough, 3 patches per driver is going to be
> alot.
> 
> Jason
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
Leon, I have not kept up with testing all the mlx5 changes and latest patches.
Going to wait until this settles then will take snapshot and start testing.

Thanks
Laurence
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Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[Leon Romanovsky]

[-- Attachment #1: Type: text/plain, Size: 893 bytes --]

On Wed, Sep 14, 2016 at 11:21:45AM -0600, Jason Gunthorpe wrote:
> On Wed, Sep 14, 2016 at 11:27:26AM +0300, Leon Romanovsky wrote:
> > The consolidate library revealed the fact that vendor specific
> > structures and defines are copy/pasted between kernel and user-space,
> > instead of sharing.
> >
> > This RFC was tested by compilation only and not-ready for merge yet.
>
> Yah, this is exactly what I had in mind. We need to give this
> treatment to all the drivers :|

Are we fine with the names (include/uapi/rdma/providers/*-abi.h)?

>
> > Leon Romanovsky (3):
> >   IB/mlx5: Move and decouple user vendor structures
> >   IB/core: Export mlx5 vendor specific strucutres
> >   MAINTAINERS: Add mlx5 uapi file
>
> One patch is probably enough, 3 patches per driver is going to be
> alot.

At the end, I will do one patch per-driver and one global patch for
MAINTAINERS file.

>
> Jason

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Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory

[Leon Romanovsky]

[-- Attachment #1: Type: text/plain, Size: 1904 bytes --]

On Wed, Sep 14, 2016 at 03:46:07PM -0400, Laurence Oberman wrote:
>
>
> ----- Original Message -----
> > From: "Jason Gunthorpe" <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
> > To: "Leon Romanovsky" <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> > Cc: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> > Sent: Wednesday, September 14, 2016 1:21:45 PM
> > Subject: Re: [RFC rdma-next 0/3] Move mlx5 vendor specific to UAPI directory
> >
> > On Wed, Sep 14, 2016 at 11:27:26AM +0300, Leon Romanovsky wrote:
> > > The consolidate library revealed the fact that vendor specific
> > > structures and defines are copy/pasted between kernel and user-space,
> > > instead of sharing.
> > >
> > > This RFC was tested by compilation only and not-ready for merge yet.
> >
> > Yah, this is exactly what I had in mind. We need to give this
> > treatment to all the drivers :|
> >
> > > Leon Romanovsky (3):
> > >   IB/mlx5: Move and decouple user vendor structures
> > >   IB/core: Export mlx5 vendor specific strucutres
> > >   MAINTAINERS: Add mlx5 uapi file
> >
> > One patch is probably enough, 3 patches per driver is going to be
> > alot.
> >
> > Jason
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >
> Leon, I have not kept up with testing all the mlx5 changes and latest patches.
> Going to wait until this settles then will take snapshot and start testing.

Thanks Laurence,

I will set the topic branch when I'll create patches for all drivers. I don't
expect any additional testing to compilations and header installations.

At the end, It is simple file moves from one place to another without
any functional changes.

>
> Thanks
> Laurence

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Re: [RFC rdma-next 2/3] IB/core: Export mlx5 vendor specific strucutres

[Christoph Hellwig]

> index 4edb0f2..e804cc3 100644
> --- a/include/uapi/rdma/Kbuild
> +++ b/include/uapi/rdma/Kbuild
> @@ -7,3 +7,4 @@ header-y += rdma_netlink.h
>  header-y += rdma_user_cm.h
>  header-y += hfi/
>  header-y += rdma_user_rxe.h
> +header-y += providers/

Can we avoid the horrible providers name?  The directories for drivers
in the source tree so far are called hw/ and sw/ so we should stick to
that here as well.
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Re: [RFC rdma-next 2/3] IB/core: Export mlx5 vendor specific strucutres

[Leon Romanovsky]

[-- Attachment #1: Type: text/plain, Size: 686 bytes --]

On Wed, Sep 14, 2016 at 11:13:36PM -0700, Christoph Hellwig wrote:
> > index 4edb0f2..e804cc3 100644
> > --- a/include/uapi/rdma/Kbuild
> > +++ b/include/uapi/rdma/Kbuild
> > @@ -7,3 +7,4 @@ header-y += rdma_netlink.h
> >  header-y += rdma_user_cm.h
> >  header-y += hfi/
> >  header-y += rdma_user_rxe.h
> > +header-y += providers/
>
> Can we avoid the horrible providers name?  The directories for drivers
> in the source tree so far are called hw/ and sw/ so we should stick to
> that here as well.

I don't like providers name too, but I don't want to stick to
drivers/.../{hw|sw} either. Any redesign there will lead to
disconnection between UAPI directory and internal structure.

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Re: [RFC rdma-next 2/3] IB/core: Export mlx5 vendor specific strucutres

[Jason Gunthorpe]

On Wed, Sep 14, 2016 at 11:13:36PM -0700, Christoph Hellwig wrote:
> > index 4edb0f2..e804cc3 100644
> > +++ b/include/uapi/rdma/Kbuild
> > @@ -7,3 +7,4 @@ header-y += rdma_netlink.h
> >  header-y += rdma_user_cm.h
> >  header-y += hfi/
> >  header-y += rdma_user_rxe.h
> > +header-y += providers/
> 
> Can we avoid the horrible providers name?  The directories for drivers
> in the source tree so far are called hw/ and sw/ so we should stick to
> that here as well.

I also don't like the provider name, it is not consistent with Linux.

Not sure hw/sw is any better, other subsystems don't split their
drivers like that.

Just driver/?

Jason
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