ib_srpt: Initial SRP Target merge for v3.3-rc1 (a42d985b) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/infiniband/Kconfig

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		@@ -55,6 +55,7 @@ source "drivers/infiniband/hw/nes/Kconfig"
		source "drivers/infiniband/ulp/ipoib/Kconfig"

		source "drivers/infiniband/ulp/srp/Kconfig"
		source "drivers/infiniband/ulp/srpt/Kconfig"

		source "drivers/infiniband/ulp/iser/Kconfig"

drivers/infiniband/Makefile

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		@@ -10,4 +10,5 @@ obj-$(CONFIG_MLX4_INFINIBAND) += hw/mlx4/
		obj-$(CONFIG_INFINIBAND_NES) += hw/nes/
		obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/
		obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/
		obj-$(CONFIG_INFINIBAND_SRPT) += ulp/srpt/
		obj-$(CONFIG_INFINIBAND_ISER) += ulp/iser/

drivers/infiniband/ulp/srpt/Kconfig

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		config INFINIBAND_SRPT
		tristate "InfiniBand SCSI RDMA Protocol target support"
		depends on INFINIBAND && TARGET_CORE
		---help---

		Support for the SCSI RDMA Protocol (SRP) Target driver. The
		SRP protocol is a protocol that allows an initiator to access
		a block storage device on another host (target) over a network
		that supports the RDMA protocol. Currently the RDMA protocol is
		supported by InfiniBand and by iWarp network hardware. More
		information about the SRP protocol can be found on the website
		of the INCITS T10 technical committee (http://www.t10.org/).

drivers/infiniband/ulp/srpt/Makefile

0 → 100644

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		ccflags-y := -Idrivers/target
		obj-$(CONFIG_INFINIBAND_SRPT) += ib_srpt.o

drivers/infiniband/ulp/srpt/ib_dm_mad.h

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		/*
		* Copyright (c) 2006 - 2009 Mellanox Technology Inc. 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_DM_MAD_H
		#define IB_DM_MAD_H

		#include <linux/types.h>

		#include <rdma/ib_mad.h>

		enum {
		/*
		* See also section 13.4.7 Status Field, table 115 MAD Common Status
		* Field Bit Values and also section 16.3.1.1 Status Field in the
		* InfiniBand Architecture Specification.
		*/
		DM_MAD_STATUS_UNSUP_METHOD = 0x0008,
		DM_MAD_STATUS_UNSUP_METHOD_ATTR = 0x000c,
		DM_MAD_STATUS_INVALID_FIELD = 0x001c,
		DM_MAD_STATUS_NO_IOC = 0x0100,

		/*
		* See also the Device Management chapter, section 16.3.3 Attributes,
		* table 279 Device Management Attributes in the InfiniBand
		* Architecture Specification.
		*/
		DM_ATTR_CLASS_PORT_INFO = 0x01,
		DM_ATTR_IOU_INFO = 0x10,
		DM_ATTR_IOC_PROFILE = 0x11,
		DM_ATTR_SVC_ENTRIES = 0x12
		};

		struct ib_dm_hdr {
		u8 reserved[28];
		};

		/*
		* Structure of management datagram sent by the SRP target implementation.
		* Contains a management datagram header, reliable multi-packet transaction
		* protocol (RMPP) header and ib_dm_hdr. Notes:
		* - The SRP target implementation does not use RMPP or ib_dm_hdr when sending
		* management datagrams.
		* - The header size must be exactly 64 bytes (IB_MGMT_DEVICE_HDR), since this
		* is the header size that is passed to ib_create_send_mad() in ib_srpt.c.
		* - The maximum supported size for a management datagram when not using RMPP
		* is 256 bytes -- 64 bytes header and 192 (IB_MGMT_DEVICE_DATA) bytes data.
		*/
		struct ib_dm_mad {
		struct ib_mad_hdr mad_hdr;
		struct ib_rmpp_hdr rmpp_hdr;
		struct ib_dm_hdr dm_hdr;
		u8 data[IB_MGMT_DEVICE_DATA];
		};

		/*
		* IOUnitInfo as defined in section 16.3.3.3 IOUnitInfo of the InfiniBand
		* Architecture Specification.
		*/
		struct ib_dm_iou_info {
		__be16 change_id;
		u8 max_controllers;
		u8 op_rom;
		u8 controller_list[128];
		};

		/*
		* IOControllerprofile as defined in section 16.3.3.4 IOControllerProfile of
		* the InfiniBand Architecture Specification.
		*/
		struct ib_dm_ioc_profile {
		__be64 guid;
		__be32 vendor_id;
		__be32 device_id;
		__be16 device_version;
		__be16 reserved1;
		__be32 subsys_vendor_id;
		__be32 subsys_device_id;
		__be16 io_class;
		__be16 io_subclass;
		__be16 protocol;
		__be16 protocol_version;
		__be16 service_conn;
		__be16 initiators_supported;
		__be16 send_queue_depth;
		u8 reserved2;
		u8 rdma_read_depth;
		__be32 send_size;
		__be32 rdma_size;
		u8 op_cap_mask;
		u8 svc_cap_mask;
		u8 num_svc_entries;
		u8 reserved3[9];
		u8 id_string[64];
		};

		struct ib_dm_svc_entry {
		u8 name[40];
		__be64 id;
		};

		/*
		* See also section 16.3.3.5 ServiceEntries in the InfiniBand Architecture
		* Specification. See also section B.7, table B.8 in the T10 SRP r16a document.
		*/
		struct ib_dm_svc_entries {
		struct ib_dm_svc_entry service_entries[4];
		};

		#endif