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Diffstat (limited to 'ANDROID_3.4.5/include/rdma/ib_mad.h')
| -rw-r--r-- | ANDROID_3.4.5/include/rdma/ib_mad.h | 664 |
1 files changed, 0 insertions, 664 deletions
diff --git a/ANDROID_3.4.5/include/rdma/ib_mad.h b/ANDROID_3.4.5/include/rdma/ib_mad.h deleted file mode 100644 index b513f57e..00000000 --- a/ANDROID_3.4.5/include/rdma/ib_mad.h +++ /dev/null @@ -1,664 +0,0 @@ -/* - * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. - * Copyright (c) 2004 Infinicon Corporation. All rights reserved. - * Copyright (c) 2004 Intel Corporation. All rights reserved. - * Copyright (c) 2004 Topspin Corporation. All rights reserved. - * Copyright (c) 2004-2006 Voltaire 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. - */ - -#if !defined(IB_MAD_H) -#define IB_MAD_H - -#include <linux/list.h> - -#include <rdma/ib_verbs.h> - -/* Management base version */ -#define IB_MGMT_BASE_VERSION 1 - -/* Management classes */ -#define IB_MGMT_CLASS_SUBN_LID_ROUTED 0x01 -#define IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE 0x81 -#define IB_MGMT_CLASS_SUBN_ADM 0x03 -#define IB_MGMT_CLASS_PERF_MGMT 0x04 -#define IB_MGMT_CLASS_BM 0x05 -#define IB_MGMT_CLASS_DEVICE_MGMT 0x06 -#define IB_MGMT_CLASS_CM 0x07 -#define IB_MGMT_CLASS_SNMP 0x08 -#define IB_MGMT_CLASS_DEVICE_ADM 0x10 -#define IB_MGMT_CLASS_BOOT_MGMT 0x11 -#define IB_MGMT_CLASS_BIS 0x12 -#define IB_MGMT_CLASS_CONG_MGMT 0x21 -#define IB_MGMT_CLASS_VENDOR_RANGE2_START 0x30 -#define IB_MGMT_CLASS_VENDOR_RANGE2_END 0x4F - -#define IB_OPENIB_OUI (0x001405) - -/* Management methods */ -#define IB_MGMT_METHOD_GET 0x01 -#define IB_MGMT_METHOD_SET 0x02 -#define IB_MGMT_METHOD_GET_RESP 0x81 -#define IB_MGMT_METHOD_SEND 0x03 -#define IB_MGMT_METHOD_TRAP 0x05 -#define IB_MGMT_METHOD_REPORT 0x06 -#define IB_MGMT_METHOD_REPORT_RESP 0x86 -#define IB_MGMT_METHOD_TRAP_REPRESS 0x07 - -#define IB_MGMT_METHOD_RESP 0x80 -#define IB_BM_ATTR_MOD_RESP cpu_to_be32(1) - -#define IB_MGMT_MAX_METHODS 128 - -/* MAD Status field bit masks */ -#define IB_MGMT_MAD_STATUS_SUCCESS 0x0000 -#define IB_MGMT_MAD_STATUS_BUSY 0x0001 -#define IB_MGMT_MAD_STATUS_REDIRECT_REQD 0x0002 -#define IB_MGMT_MAD_STATUS_BAD_VERSION 0x0004 -#define IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD 0x0008 -#define IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB 0x000c -#define IB_MGMT_MAD_STATUS_INVALID_ATTRIB_VALUE 0x001c - -/* RMPP information */ -#define IB_MGMT_RMPP_VERSION 1 - -#define IB_MGMT_RMPP_TYPE_DATA 1 -#define IB_MGMT_RMPP_TYPE_ACK 2 -#define IB_MGMT_RMPP_TYPE_STOP 3 -#define IB_MGMT_RMPP_TYPE_ABORT 4 - -#define IB_MGMT_RMPP_FLAG_ACTIVE 1 -#define IB_MGMT_RMPP_FLAG_FIRST (1<<1) -#define IB_MGMT_RMPP_FLAG_LAST (1<<2) - -#define IB_MGMT_RMPP_NO_RESPTIME 0x1F - -#define IB_MGMT_RMPP_STATUS_SUCCESS 0 -#define IB_MGMT_RMPP_STATUS_RESX 1 -#define IB_MGMT_RMPP_STATUS_ABORT_MIN 118 -#define IB_MGMT_RMPP_STATUS_T2L 118 -#define IB_MGMT_RMPP_STATUS_BAD_LEN 119 -#define IB_MGMT_RMPP_STATUS_BAD_SEG 120 -#define IB_MGMT_RMPP_STATUS_BADT 121 -#define IB_MGMT_RMPP_STATUS_W2S 122 -#define IB_MGMT_RMPP_STATUS_S2B 123 -#define IB_MGMT_RMPP_STATUS_BAD_STATUS 124 -#define IB_MGMT_RMPP_STATUS_UNV 125 -#define IB_MGMT_RMPP_STATUS_TMR 126 -#define IB_MGMT_RMPP_STATUS_UNSPEC 127 -#define IB_MGMT_RMPP_STATUS_ABORT_MAX 127 - -#define IB_QP0 0 -#define IB_QP1 cpu_to_be32(1) -#define IB_QP1_QKEY 0x80010000 -#define IB_QP_SET_QKEY 0x80000000 - -#define IB_DEFAULT_PKEY_PARTIAL 0x7FFF -#define IB_DEFAULT_PKEY_FULL 0xFFFF - -enum { - IB_MGMT_MAD_HDR = 24, - IB_MGMT_MAD_DATA = 232, - IB_MGMT_RMPP_HDR = 36, - IB_MGMT_RMPP_DATA = 220, - IB_MGMT_VENDOR_HDR = 40, - IB_MGMT_VENDOR_DATA = 216, - IB_MGMT_SA_HDR = 56, - IB_MGMT_SA_DATA = 200, - IB_MGMT_DEVICE_HDR = 64, - IB_MGMT_DEVICE_DATA = 192, -}; - -struct ib_mad_hdr { - u8 base_version; - u8 mgmt_class; - u8 class_version; - u8 method; - __be16 status; - __be16 class_specific; - __be64 tid; - __be16 attr_id; - __be16 resv; - __be32 attr_mod; -}; - -struct ib_rmpp_hdr { - u8 rmpp_version; - u8 rmpp_type; - u8 rmpp_rtime_flags; - u8 rmpp_status; - __be32 seg_num; - __be32 paylen_newwin; -}; - -typedef u64 __bitwise ib_sa_comp_mask; - -#define IB_SA_COMP_MASK(n) ((__force ib_sa_comp_mask) cpu_to_be64(1ull << n)) - -/* - * ib_sa_hdr and ib_sa_mad structures must be packed because they have - * 64-bit fields that are only 32-bit aligned. 64-bit architectures will - * lay them out wrong otherwise. (And unfortunately they are sent on - * the wire so we can't change the layout) - */ -struct ib_sa_hdr { - __be64 sm_key; - __be16 attr_offset; - __be16 reserved; - ib_sa_comp_mask comp_mask; -} __attribute__ ((packed)); - -struct ib_mad { - struct ib_mad_hdr mad_hdr; - u8 data[IB_MGMT_MAD_DATA]; -}; - -struct ib_rmpp_mad { - struct ib_mad_hdr mad_hdr; - struct ib_rmpp_hdr rmpp_hdr; - u8 data[IB_MGMT_RMPP_DATA]; -}; - -struct ib_sa_mad { - struct ib_mad_hdr mad_hdr; - struct ib_rmpp_hdr rmpp_hdr; - struct ib_sa_hdr sa_hdr; - u8 data[IB_MGMT_SA_DATA]; -} __attribute__ ((packed)); - -struct ib_vendor_mad { - struct ib_mad_hdr mad_hdr; - struct ib_rmpp_hdr rmpp_hdr; - u8 reserved; - u8 oui[3]; - u8 data[IB_MGMT_VENDOR_DATA]; -}; - -struct ib_class_port_info { - u8 base_version; - u8 class_version; - __be16 capability_mask; - u8 reserved[3]; - u8 resp_time_value; - u8 redirect_gid[16]; - __be32 redirect_tcslfl; - __be16 redirect_lid; - __be16 redirect_pkey; - __be32 redirect_qp; - __be32 redirect_qkey; - u8 trap_gid[16]; - __be32 trap_tcslfl; - __be16 trap_lid; - __be16 trap_pkey; - __be32 trap_hlqp; - __be32 trap_qkey; -}; - -/** - * ib_mad_send_buf - MAD data buffer and work request for sends. - * @next: A pointer used to chain together MADs for posting. - * @mad: References an allocated MAD data buffer for MADs that do not have - * RMPP active. For MADs using RMPP, references the common and management - * class specific headers. - * @mad_agent: MAD agent that allocated the buffer. - * @ah: The address handle to use when sending the MAD. - * @context: User-controlled context fields. - * @hdr_len: Indicates the size of the data header of the MAD. This length - * includes the common MAD, RMPP, and class specific headers. - * @data_len: Indicates the total size of user-transferred data. - * @seg_count: The number of RMPP segments allocated for this send. - * @seg_size: Size of each RMPP segment. - * @timeout_ms: Time to wait for a response. - * @retries: Number of times to retry a request for a response. For MADs - * using RMPP, this applies per window. On completion, returns the number - * of retries needed to complete the transfer. - * - * Users are responsible for initializing the MAD buffer itself, with the - * exception of any RMPP header. Additional segment buffer space allocated - * beyond data_len is padding. - */ -struct ib_mad_send_buf { - struct ib_mad_send_buf *next; - void *mad; - struct ib_mad_agent *mad_agent; - struct ib_ah *ah; - void *context[2]; - int hdr_len; - int data_len; - int seg_count; - int seg_size; - int timeout_ms; - int retries; -}; - -/** - * ib_response_mad - Returns if the specified MAD has been generated in - * response to a sent request or trap. - */ -int ib_response_mad(struct ib_mad *mad); - -/** - * ib_get_rmpp_resptime - Returns the RMPP response time. - * @rmpp_hdr: An RMPP header. - */ -static inline u8 ib_get_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr) -{ - return rmpp_hdr->rmpp_rtime_flags >> 3; -} - -/** - * ib_get_rmpp_flags - Returns the RMPP flags. - * @rmpp_hdr: An RMPP header. - */ -static inline u8 ib_get_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr) -{ - return rmpp_hdr->rmpp_rtime_flags & 0x7; -} - -/** - * ib_set_rmpp_resptime - Sets the response time in an RMPP header. - * @rmpp_hdr: An RMPP header. - * @rtime: The response time to set. - */ -static inline void ib_set_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr, u8 rtime) -{ - rmpp_hdr->rmpp_rtime_flags = ib_get_rmpp_flags(rmpp_hdr) | (rtime << 3); -} - -/** - * ib_set_rmpp_flags - Sets the flags in an RMPP header. - * @rmpp_hdr: An RMPP header. - * @flags: The flags to set. - */ -static inline void ib_set_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr, u8 flags) -{ - rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF8) | - (flags & 0x7); -} - -struct ib_mad_agent; -struct ib_mad_send_wc; -struct ib_mad_recv_wc; - -/** - * ib_mad_send_handler - callback handler for a sent MAD. - * @mad_agent: MAD agent that sent the MAD. - * @mad_send_wc: Send work completion information on the sent MAD. - */ -typedef void (*ib_mad_send_handler)(struct ib_mad_agent *mad_agent, - struct ib_mad_send_wc *mad_send_wc); - -/** - * ib_mad_snoop_handler - Callback handler for snooping sent MADs. - * @mad_agent: MAD agent that snooped the MAD. - * @send_wr: Work request information on the sent MAD. - * @mad_send_wc: Work completion information on the sent MAD. Valid - * only for snooping that occurs on a send completion. - * - * Clients snooping MADs should not modify data referenced by the @send_wr - * or @mad_send_wc. - */ -typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent, - struct ib_mad_send_buf *send_buf, - struct ib_mad_send_wc *mad_send_wc); - -/** - * ib_mad_recv_handler - callback handler for a received MAD. - * @mad_agent: MAD agent requesting the received MAD. - * @mad_recv_wc: Received work completion information on the received MAD. - * - * MADs received in response to a send request operation will be handed to - * the user before the send operation completes. All data buffers given - * to registered agents through this routine are owned by the receiving - * client, except for snooping agents. Clients snooping MADs should not - * modify the data referenced by @mad_recv_wc. - */ -typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent, - struct ib_mad_recv_wc *mad_recv_wc); - -/** - * ib_mad_agent - Used to track MAD registration with the access layer. - * @device: Reference to device registration is on. - * @qp: Reference to QP used for sending and receiving MADs. - * @mr: Memory region for system memory usable for DMA. - * @recv_handler: Callback handler for a received MAD. - * @send_handler: Callback handler for a sent MAD. - * @snoop_handler: Callback handler for snooped sent MADs. - * @context: User-specified context associated with this registration. - * @hi_tid: Access layer assigned transaction ID for this client. - * Unsolicited MADs sent by this client will have the upper 32-bits - * of their TID set to this value. - * @port_num: Port number on which QP is registered - * @rmpp_version: If set, indicates the RMPP version used by this agent. - */ -struct ib_mad_agent { - struct ib_device *device; - struct ib_qp *qp; - struct ib_mr *mr; - ib_mad_recv_handler recv_handler; - ib_mad_send_handler send_handler; - ib_mad_snoop_handler snoop_handler; - void *context; - u32 hi_tid; - u8 port_num; - u8 rmpp_version; -}; - -/** - * ib_mad_send_wc - MAD send completion information. - * @send_buf: Send MAD data buffer associated with the send MAD request. - * @status: Completion status. - * @vendor_err: Optional vendor error information returned with a failed - * request. - */ -struct ib_mad_send_wc { - struct ib_mad_send_buf *send_buf; - enum ib_wc_status status; - u32 vendor_err; -}; - -/** - * ib_mad_recv_buf - received MAD buffer information. - * @list: Reference to next data buffer for a received RMPP MAD. - * @grh: References a data buffer containing the global route header. - * The data refereced by this buffer is only valid if the GRH is - * valid. - * @mad: References the start of the received MAD. - */ -struct ib_mad_recv_buf { - struct list_head list; - struct ib_grh *grh; - struct ib_mad *mad; -}; - -/** - * ib_mad_recv_wc - received MAD information. - * @wc: Completion information for the received data. - * @recv_buf: Specifies the location of the received data buffer(s). - * @rmpp_list: Specifies a list of RMPP reassembled received MAD buffers. - * @mad_len: The length of the received MAD, without duplicated headers. - * - * For received response, the wr_id contains a pointer to the ib_mad_send_buf - * for the corresponding send request. - */ -struct ib_mad_recv_wc { - struct ib_wc *wc; - struct ib_mad_recv_buf recv_buf; - struct list_head rmpp_list; - int mad_len; -}; - -/** - * ib_mad_reg_req - MAD registration request - * @mgmt_class: Indicates which management class of MADs should be receive - * by the caller. This field is only required if the user wishes to - * receive unsolicited MADs, otherwise it should be 0. - * @mgmt_class_version: Indicates which version of MADs for the given - * management class to receive. - * @oui: Indicates IEEE OUI when mgmt_class is a vendor class - * in the range from 0x30 to 0x4f. Otherwise not used. - * @method_mask: The caller will receive unsolicited MADs for any method - * where @method_mask = 1. - */ -struct ib_mad_reg_req { - u8 mgmt_class; - u8 mgmt_class_version; - u8 oui[3]; - DECLARE_BITMAP(method_mask, IB_MGMT_MAX_METHODS); -}; - -/** - * ib_register_mad_agent - Register to send/receive MADs. - * @device: The device to register with. - * @port_num: The port on the specified device to use. - * @qp_type: Specifies which QP to access. Must be either - * IB_QPT_SMI or IB_QPT_GSI. - * @mad_reg_req: Specifies which unsolicited MADs should be received - * by the caller. This parameter may be NULL if the caller only - * wishes to receive solicited responses. - * @rmpp_version: If set, indicates that the client will send - * and receive MADs that contain the RMPP header for the given version. - * If set to 0, indicates that RMPP is not used by this client. - * @send_handler: The completion callback routine invoked after a send - * request has completed. - * @recv_handler: The completion callback routine invoked for a received - * MAD. - * @context: User specified context associated with the registration. - */ -struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device, - u8 port_num, - enum ib_qp_type qp_type, - struct ib_mad_reg_req *mad_reg_req, - u8 rmpp_version, - ib_mad_send_handler send_handler, - ib_mad_recv_handler recv_handler, - void *context); - -enum ib_mad_snoop_flags { - /*IB_MAD_SNOOP_POSTED_SENDS = 1,*/ - /*IB_MAD_SNOOP_RMPP_SENDS = (1<<1),*/ - IB_MAD_SNOOP_SEND_COMPLETIONS = (1<<2), - /*IB_MAD_SNOOP_RMPP_SEND_COMPLETIONS = (1<<3),*/ - IB_MAD_SNOOP_RECVS = (1<<4) - /*IB_MAD_SNOOP_RMPP_RECVS = (1<<5),*/ - /*IB_MAD_SNOOP_REDIRECTED_QPS = (1<<6)*/ -}; - -/** - * ib_register_mad_snoop - Register to snoop sent and received MADs. - * @device: The device to register with. - * @port_num: The port on the specified device to use. - * @qp_type: Specifies which QP traffic to snoop. Must be either - * IB_QPT_SMI or IB_QPT_GSI. - * @mad_snoop_flags: Specifies information where snooping occurs. - * @send_handler: The callback routine invoked for a snooped send. - * @recv_handler: The callback routine invoked for a snooped receive. - * @context: User specified context associated with the registration. - */ -struct ib_mad_agent *ib_register_mad_snoop(struct ib_device *device, - u8 port_num, - enum ib_qp_type qp_type, - int mad_snoop_flags, - ib_mad_snoop_handler snoop_handler, - ib_mad_recv_handler recv_handler, - void *context); - -/** - * ib_unregister_mad_agent - Unregisters a client from using MAD services. - * @mad_agent: Corresponding MAD registration request to deregister. - * - * After invoking this routine, MAD services are no longer usable by the - * client on the associated QP. - */ -int ib_unregister_mad_agent(struct ib_mad_agent *mad_agent); - -/** - * ib_post_send_mad - Posts MAD(s) to the send queue of the QP associated - * with the registered client. - * @send_buf: Specifies the information needed to send the MAD(s). - * @bad_send_buf: Specifies the MAD on which an error was encountered. This - * parameter is optional if only a single MAD is posted. - * - * Sent MADs are not guaranteed to complete in the order that they were posted. - * - * If the MAD requires RMPP, the data buffer should contain a single copy - * of the common MAD, RMPP, and class specific headers, followed by the class - * defined data. If the class defined data would not divide evenly into - * RMPP segments, then space must be allocated at the end of the referenced - * buffer for any required padding. To indicate the amount of class defined - * data being transferred, the paylen_newwin field in the RMPP header should - * be set to the size of the class specific header plus the amount of class - * defined data being transferred. The paylen_newwin field should be - * specified in network-byte order. - */ -int ib_post_send_mad(struct ib_mad_send_buf *send_buf, - struct ib_mad_send_buf **bad_send_buf); - - -/** - * ib_free_recv_mad - Returns data buffers used to receive a MAD. - * @mad_recv_wc: Work completion information for a received MAD. - * - * Clients receiving MADs through their ib_mad_recv_handler must call this - * routine to return the work completion buffers to the access layer. - */ -void ib_free_recv_mad(struct ib_mad_recv_wc *mad_recv_wc); - -/** - * ib_cancel_mad - Cancels an outstanding send MAD operation. - * @mad_agent: Specifies the registration associated with sent MAD. - * @send_buf: Indicates the MAD to cancel. - * - * MADs will be returned to the user through the corresponding - * ib_mad_send_handler. - */ -void ib_cancel_mad(struct ib_mad_agent *mad_agent, - struct ib_mad_send_buf *send_buf); - -/** - * ib_modify_mad - Modifies an outstanding send MAD operation. - * @mad_agent: Specifies the registration associated with sent MAD. - * @send_buf: Indicates the MAD to modify. - * @timeout_ms: New timeout value for sent MAD. - * - * This call will reset the timeout value for a sent MAD to the specified - * value. - */ -int ib_modify_mad(struct ib_mad_agent *mad_agent, - struct ib_mad_send_buf *send_buf, u32 timeout_ms); - -/** - * ib_redirect_mad_qp - Registers a QP for MAD services. - * @qp: Reference to a QP that requires MAD services. - * @rmpp_version: If set, indicates that the client will send - * and receive MADs that contain the RMPP header for the given version. - * If set to 0, indicates that RMPP is not used by this client. - * @send_handler: The completion callback routine invoked after a send - * request has completed. - * @recv_handler: The completion callback routine invoked for a received - * MAD. - * @context: User specified context associated with the registration. - * - * Use of this call allows clients to use MAD services, such as RMPP, - * on user-owned QPs. After calling this routine, users may send - * MADs on the specified QP by calling ib_mad_post_send. - */ -struct ib_mad_agent *ib_redirect_mad_qp(struct ib_qp *qp, - u8 rmpp_version, - ib_mad_send_handler send_handler, - ib_mad_recv_handler recv_handler, - void *context); - -/** - * ib_process_mad_wc - Processes a work completion associated with a - * MAD sent or received on a redirected QP. - * @mad_agent: Specifies the registered MAD service using the redirected QP. - * @wc: References a work completion associated with a sent or received - * MAD segment. - * - * This routine is used to complete or continue processing on a MAD request. - * If the work completion is associated with a send operation, calling - * this routine is required to continue an RMPP transfer or to wait for a - * corresponding response, if it is a request. If the work completion is - * associated with a receive operation, calling this routine is required to - * process an inbound or outbound RMPP transfer, or to match a response MAD - * with its corresponding request. - */ -int ib_process_mad_wc(struct ib_mad_agent *mad_agent, - struct ib_wc *wc); - -/** - * ib_create_send_mad - Allocate and initialize a data buffer and work request - * for sending a MAD. - * @mad_agent: Specifies the registered MAD service to associate with the MAD. - * @remote_qpn: Specifies the QPN of the receiving node. - * @pkey_index: Specifies which PKey the MAD will be sent using. This field - * is valid only if the remote_qpn is QP 1. - * @rmpp_active: Indicates if the send will enable RMPP. - * @hdr_len: Indicates the size of the data header of the MAD. This length - * should include the common MAD header, RMPP header, plus any class - * specific header. - * @data_len: Indicates the size of any user-transferred data. The call will - * automatically adjust the allocated buffer size to account for any - * additional padding that may be necessary. - * @gfp_mask: GFP mask used for the memory allocation. - * - * This routine allocates a MAD for sending. The returned MAD send buffer - * will reference a data buffer usable for sending a MAD, along - * with an initialized work request structure. Users may modify the returned - * MAD data buffer before posting the send. - * - * The returned MAD header, class specific headers, and any padding will be - * cleared. Users are responsible for initializing the common MAD header, - * any class specific header, and MAD data area. - * If @rmpp_active is set, the RMPP header will be initialized for sending. - */ -struct ib_mad_send_buf *ib_create_send_mad(struct ib_mad_agent *mad_agent, - u32 remote_qpn, u16 pkey_index, - int rmpp_active, - int hdr_len, int data_len, - gfp_t gfp_mask); - -/** - * ib_is_mad_class_rmpp - returns whether given management class - * supports RMPP. - * @mgmt_class: management class - * - * This routine returns whether the management class supports RMPP. - */ -int ib_is_mad_class_rmpp(u8 mgmt_class); - -/** - * ib_get_mad_data_offset - returns the data offset for a given - * management class. - * @mgmt_class: management class - * - * This routine returns the data offset in the MAD for the management - * class requested. - */ -int ib_get_mad_data_offset(u8 mgmt_class); - -/** - * ib_get_rmpp_segment - returns the data buffer for a given RMPP segment. - * @send_buf: Previously allocated send data buffer. - * @seg_num: number of segment to return - * - * This routine returns a pointer to the data buffer of an RMPP MAD. - * Users must provide synchronization to @send_buf around this call. - */ -void *ib_get_rmpp_segment(struct ib_mad_send_buf *send_buf, int seg_num); - -/** - * ib_free_send_mad - Returns data buffers used to send a MAD. - * @send_buf: Previously allocated send data buffer. - */ -void ib_free_send_mad(struct ib_mad_send_buf *send_buf); - -#endif /* IB_MAD_H */ |