From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Provide to the user space application the ability
to understand device capabilities.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
include/rdma/ib_verbs.h | 68 ++++++++++++------------
include/uapi/rdma/ib_user_verbs.h | 1 +
include/uapi/rdma/rdma.h | 106 ++++++++++++++++++++++++++++++++++++++
3 files changed, 140 insertions(+), 35 deletions(-)
create mode 100644 include/uapi/rdma/rdma.h
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 80ede01d2237..bfedcda04ef7 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -157,22 +157,21 @@ enum rdma_link_layer {
};
enum ib_device_cap_flags {
- IB_DEVICE_RESIZE_MAX_WR = (1 << 0),
- IB_DEVICE_BAD_PKEY_CNTR = (1 << 1),
- IB_DEVICE_BAD_QKEY_CNTR = (1 << 2),
- IB_DEVICE_RAW_MULTI = (1 << 3),
- IB_DEVICE_AUTO_PATH_MIG = (1 << 4),
- IB_DEVICE_CHANGE_PHY_PORT = (1 << 5),
- IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6),
- IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7),
- IB_DEVICE_SHUTDOWN_PORT = (1 << 8),
+ IB_DEVICE_RESIZE_MAX_WR = RDMA_DEV_RESIZE_MAX_WR,
+ IB_DEVICE_BAD_PKEY_CNTR = RDMA_DEV_BAD_PKEY_CNTR,
+ IB_DEVICE_BAD_QKEY_CNTR = RDMA_DEV_BAD_QKEY_CNTR,
+ IB_DEVICE_RAW_MULTI = RDMA_DEV_RAW_MULTI,
+ IB_DEVICE_AUTO_PATH_MIG = RDMA_DEV_AUTO_PATH_MIG,
+ IB_DEVICE_CHANGE_PHY_PORT = RDMA_DEV_CHANGE_PHY_PORT,
+ IB_DEVICE_UD_AV_PORT_ENFORCE = RDMA_DEV_UD_AV_PORT_ENFORCE,
+ IB_DEVICE_CURR_QP_STATE_MOD = RDMA_DEV_CURR_QP_STATE_MOD,
+ IB_DEVICE_SHUTDOWN_PORT = RDMA_DEV_SHUTDOWN_PORT,
/* Not in use, former INIT_TYPE = (1 << 9),*/
- IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10),
- IB_DEVICE_SYS_IMAGE_GUID = (1 << 11),
- IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12),
- IB_DEVICE_SRQ_RESIZE = (1 << 13),
- IB_DEVICE_N_NOTIFY_CQ = (1 << 14),
-
+ IB_DEVICE_PORT_ACTIVE_EVENT = RDMA_DEV_PORT_ACTIVE_EVENT,
+ IB_DEVICE_SYS_IMAGE_GUID = RDMA_DEV_SYS_IMAGE_GUID,
+ IB_DEVICE_RC_RNR_NAK_GEN = RDMA_DEV_RC_RNR_NAK_GEN,
+ IB_DEVICE_SRQ_RESIZE = RDMA_DEV_SRQ_RESIZE,
+ IB_DEVICE_N_NOTIFY_CQ = RDMA_DEV_N_NOTIFY_CQ,
/*
* This device supports a per-device lkey or stag that can be
* used without performing a memory registration for the local
@@ -180,9 +179,9 @@ enum ib_device_cap_flags {
* instead of use the local_dma_lkey flag in the ib_pd structure,
* which will always contain a usable lkey.
*/
- IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15),
+ IB_DEVICE_LOCAL_DMA_LKEY = RDMA_DEV_LOCAL_DMA_LKEY,
/* Reserved, old SEND_W_INV = (1 << 16),*/
- IB_DEVICE_MEM_WINDOW = (1 << 17),
+ IB_DEVICE_MEM_WINDOW = RDMA_DEV_MEM_WINDOW,
/*
* Devices should set IB_DEVICE_UD_IP_SUM if they support
* insertion of UDP and TCP checksum on outgoing UD IPoIB
@@ -190,10 +189,9 @@ enum ib_device_cap_flags {
* incoming messages. Setting this flag implies that the
* IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
*/
- IB_DEVICE_UD_IP_CSUM = (1 << 18),
- IB_DEVICE_UD_TSO = (1 << 19),
- IB_DEVICE_XRC = (1 << 20),
-
+ IB_DEVICE_UD_IP_CSUM = RDMA_DEV_UD_IP_CSUM,
+ IB_DEVICE_UD_TSO = RDMA_DEV_UD_TSO,
+ IB_DEVICE_XRC = RDMA_DEV_XRC,
/*
* This device supports the IB "base memory management extension",
* which includes support for fast registrations (IB_WR_REG_MR,
@@ -203,28 +201,28 @@ enum ib_device_cap_flags {
* IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the
* stag.
*/
- IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21),
- IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22),
- IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23),
- IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24),
- IB_DEVICE_RC_IP_CSUM = (1 << 25),
+ IB_DEVICE_MEM_MGT_EXTENSIONS = RDMA_DEV_MEM_MGT_EXTENSIONS,
+ IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = RDMA_DEV_BLOCK_MULTICAST_LOOPBACK,
+ IB_DEVICE_MEM_WINDOW_TYPE_2A = RDMA_DEV_MEM_WINDOW_TYPE_2A,
+ IB_DEVICE_MEM_WINDOW_TYPE_2B = RDMA_DEV_MEM_WINDOW_TYPE_2B,
+ IB_DEVICE_RC_IP_CSUM = RDMA_DEV_RC_IP_CSUM,
/* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */
- IB_DEVICE_RAW_IP_CSUM = (1 << 26),
+ IB_DEVICE_RAW_IP_CSUM = RDMA_DEV_RAW_IP_CSUM,
/*
* Devices should set IB_DEVICE_CROSS_CHANNEL if they
* support execution of WQEs that involve synchronization
* of I/O operations with single completion queue managed
* by hardware.
*/
- IB_DEVICE_CROSS_CHANNEL = (1 << 27),
- IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29),
- IB_DEVICE_SIGNATURE_HANDOVER = (1 << 30),
- IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31),
- IB_DEVICE_SG_GAPS_REG = (1ULL << 32),
- IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33),
+ IB_DEVICE_CROSS_CHANNEL = RDMA_DEV_CROSS_CHANNEL,
+ IB_DEVICE_MANAGED_FLOW_STEERING = RDMA_DEV_MANAGED_FLOW_STEERING,
+ IB_DEVICE_SIGNATURE_HANDOVER = RDMA_DEV_SIGNATURE_HANDOVER,
+ IB_DEVICE_ON_DEMAND_PAGING = RDMA_DEV_ON_DEMAND_PAGING,
+ IB_DEVICE_SG_GAPS_REG = RDMA_DEV_SG_GAPS_REG,
+ IB_DEVICE_VIRTUAL_FUNCTION = RDMA_DEV_VIRTUAL_FUNCTION,
/* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */
- IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
- IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35),
+ IB_DEVICE_RAW_SCATTER_FCS = RDMA_DEV_RAW_SCATTER_FCS,
+ IB_DEVICE_RDMA_NETDEV_OPA_VNIC = RDMA_DEV_RDMA_NETDEV_OPA_VNIC,
};
enum ib_signature_prot_cap {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 9a0b6479fe0c..803106ffa93c 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -37,6 +37,7 @@
#define IB_USER_VERBS_H
#include <linux/types.h>
+#include <rdma/rdma.h>
/*
* Increment this value if any changes that break userspace ABI
diff --git a/include/uapi/rdma/rdma.h b/include/uapi/rdma/rdma.h
new file mode 100644
index 000000000000..dcdf61474118
--- /dev/null
+++ b/include/uapi/rdma/rdma.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2017 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 _RDMA_H
+#define _RDMA_H
+
+enum rdma_dev_cap {
+ RDMA_DEV_RESIZE_MAX_WR = (1 << 0),
+ RDMA_DEV_BAD_PKEY_CNTR = (1 << 1),
+ RDMA_DEV_BAD_QKEY_CNTR = (1 << 2),
+ RDMA_DEV_RAW_MULTI = (1 << 3),
+ RDMA_DEV_AUTO_PATH_MIG = (1 << 4),
+ RDMA_DEV_CHANGE_PHY_PORT = (1 << 5),
+ RDMA_DEV_UD_AV_PORT_ENFORCE = (1 << 6),
+ RDMA_DEV_CURR_QP_STATE_MOD = (1 << 7),
+ RDMA_DEV_SHUTDOWN_PORT = (1 << 8),
+ /* Not in use, former INIT_TYPE = (1 << 9),*/
+ RDMA_DEV_PORT_ACTIVE_EVENT = (1 << 10),
+ RDMA_DEV_SYS_IMAGE_GUID = (1 << 11),
+ RDMA_DEV_RC_RNR_NAK_GEN = (1 << 12),
+ RDMA_DEV_SRQ_RESIZE = (1 << 13),
+ RDMA_DEV_N_NOTIFY_CQ = (1 << 14),
+
+ /*
+ * This device supports a per-device lkey or stag that can be
+ * used without performing a memory registration for the local
+ * memory. Note that ULPs should never check this flag, but
+ * instead of use the local_dma_lkey flag in the ib_pd structure,
+ * which will always contain a usable lkey.
+ */
+ RDMA_DEV_LOCAL_DMA_LKEY = (1 << 15),
+ /* Reserved, old SEND_W_INV = (1 << 16),*/
+ RDMA_DEV_MEM_WINDOW = (1 << 17),
+ /*
+ * Devices should set RDMA_DEV_UD_IP_SUM if they support
+ * insertion of UDP and TCP checksum on outgoing UD IPoIB
+ * messages and can verify the validity of checksum for
+ * incoming messages. Setting this flag implies that the
+ * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
+ */
+ RDMA_DEV_UD_IP_CSUM = (1 << 18),
+ RDMA_DEV_UD_TSO = (1 << 19),
+ RDMA_DEV_XRC = (1 << 20),
+
+ /*
+ * This device supports the IB "base memory management extension",
+ * which includes support for fast registrations (IB_WR_REG_MR,
+ * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should
+ * also be set by any iWarp device which must support FRs to comply
+ * to the iWarp verbs spec. iWarp devices also support the
+ * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the
+ * stag.
+ */
+ RDMA_DEV_MEM_MGT_EXTENSIONS = (1 << 21),
+ RDMA_DEV_BLOCK_MULTICAST_LOOPBACK = (1 << 22),
+ RDMA_DEV_MEM_WINDOW_TYPE_2A = (1 << 23),
+ RDMA_DEV_MEM_WINDOW_TYPE_2B = (1 << 24),
+ RDMA_DEV_RC_IP_CSUM = (1 << 25),
+ /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */
+ RDMA_DEV_RAW_IP_CSUM = (1 << 26),
+ /*
+ * Devices should set RDMA_DEV_CROSS_CHANNEL if they
+ * support execution of WQEs that involve synchronization
+ * of I/O operations with single completion queue managed
+ * by hardware.
+ */
+ RDMA_DEV_CROSS_CHANNEL = (1 << 27),
+ RDMA_DEV_MANAGED_FLOW_STEERING = (1 << 29),
+ RDMA_DEV_SIGNATURE_HANDOVER = (1 << 30),
+ RDMA_DEV_ON_DEMAND_PAGING = (1ULL << 31),
+ RDMA_DEV_SG_GAPS_REG = (1ULL << 32),
+ RDMA_DEV_VIRTUAL_FUNCTION = (1ULL << 33),
+ /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */
+ RDMA_DEV_RAW_SCATTER_FCS = (1ULL << 34),
+ RDMA_DEV_RDMA_NETDEV_OPA_VNIC = (1ULL << 35),
+};
+#endif /* _RDMA_H */
--
2.14.0
--
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