/* * Copyright (c) 2005 Cisco Systems. 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. * * $Id$ */ #ifndef SCSI_SRP_H #define SCSI_SRP_H /* * Structures and constants for the SCSI RDMA Protocol (SRP) as * defined by the INCITS T10 committee. This file was written using * draft Revision 16a of the SRP standard. */ #include #include enum { SRP_LOGIN_REQ = 0x00, SRP_TSK_MGMT = 0x01, SRP_CMD = 0x02, SRP_I_LOGOUT = 0x03, SRP_LOGIN_RSP = 0xc0, SRP_RSP = 0xc1, SRP_LOGIN_REJ = 0xc2, SRP_T_LOGOUT = 0x80, SRP_CRED_REQ = 0x81, SRP_AER_REQ = 0x82, SRP_CRED_RSP = 0x41, SRP_AER_RSP = 0x42 }; enum { SRP_BUF_FORMAT_DIRECT = 1 << 1, SRP_BUF_FORMAT_INDIRECT = 1 << 2 }; enum { SRP_NO_DATA_DESC = 0, SRP_DATA_DESC_DIRECT = 1, SRP_DATA_DESC_INDIRECT = 2 }; enum { SRP_TSK_ABORT_TASK = 0x01, SRP_TSK_ABORT_TASK_SET = 0x02, SRP_TSK_CLEAR_TASK_SET = 0x04, SRP_TSK_LUN_RESET = 0x08, SRP_TSK_CLEAR_ACA = 0x40 }; enum srp_login_rej_reason { SRP_LOGIN_REJ_UNABLE_ESTABLISH_CHANNEL = 0x00010000, SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES = 0x00010001, SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE = 0x00010002, SRP_LOGIN_REJ_UNABLE_ASSOCIATE_CHANNEL = 0x00010003, SRP_LOGIN_REJ_UNSUPPORTED_DESCRIPTOR_FMT = 0x00010004, SRP_LOGIN_REJ_MULTI_CHANNEL_UNSUPPORTED = 0x00010005, SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED = 0x00010006 }; enum { SRP_REV10_IB_IO_CLASS = 0xff00, SRP_REV16A_IB_IO_CLASS = 0x0100 }; struct srp_direct_buf { __be64 va; __be32 key; __be32 len; }; /* * We need the packed attribute because the SRP spec puts the list of * descriptors at an offset of 20, which is not aligned to the size of * struct srp_direct_buf. The whole structure must be packed to avoid * having the 20-byte structure padded to 24 bytes on 64-bit architectures. */ struct srp_indirect_buf { struct srp_direct_buf table_desc; __be32 len; struct srp_direct_buf desc_list[0]; } __attribute__((packed)); enum { SRP_MULTICHAN_SINGLE = 0, SRP_MULTICHAN_MULTI = 1 }; struct srp_login_req { u8 opcode; u8 reserved1[7]; u64 tag; __be32 req_it_iu_len; u8 reserved2[4]; __be16 req_buf_fmt; u8 req_flags; u8 reserved3[5]; u8 initiator_port_id[16]; u8 target_port_id[16]; }; /* * The SRP spec defines the size of the LOGIN_RSP structure to be 52 * bytes, so it needs to be packed to avoid having it padded to 56 * bytes on 64-bit architectures. */ struct srp_login_rsp { u8 opcode; u8 reserved1[3]; __be32 req_lim_delta; u64 tag; __be32 max_it_iu_len; __be32 max_ti_iu_len; __be16 buf_fmt; u8 rsp_flags; u8 reserved2[25]; } __attribute__((packed)); struct srp_login_rej { u8 opcode; u8 reserved1[3]; __be32 reason; u64 tag; u8 reserved2[8]; __be16 buf_fmt; u8 reserved3[6]; }; struct srp_i_logout { u8 opcode; u8 reserved[7]; u64 tag; }; struct srp_t_logout { u8 opcode; u8 sol_not; u8 reserved[2]; __be32 reason; u64 tag; }; /* * We need the packed attribute because the SRP spec only aligns the * 8-byte LUN field to 4 bytes. */ struct srp_tsk_mgmt { u8 opcode; u8 sol_not; u8 reserved1[6]; u64 tag; u8 reserved2[4]; struct scsi_lun lun; u8 reserved3[2]; u8 tsk_mgmt_func; u8 reserved4; u64 task_tag; u8 reserved5[8]; }; /* * We need the packed attribute because the SRP spec only aligns the * 8-byte LUN field to 4 bytes. */ struct srp_cmd { u8 opcode; u8 sol_not; u8 reserved1[3]; u8 buf_fmt; u8 data_out_desc_cnt; u8 data_in_desc_cnt; u64 tag; u8 reserved2[4]; struct scsi_lun lun; u8 reserved3; u8 task_attr; u8 reserved4; u8 add_cdb_len; u8 cdb[16]; u8 add_data[0]; }; enum { SRP_RSP_FLAG_RSPVALID = 1 << 0, SRP_RSP_FLAG_SNSVALID = 1 << 1, SRP_RSP_FLAG_DOOVER = 1 << 2, SRP_RSP_FLAG_DOUNDER = 1 << 3, SRP_RSP_FLAG_DIOVER = 1 << 4, SRP_RSP_FLAG_DIUNDER = 1 << 5 }; /* * The SRP spec defines the size of the RSP structure to be 36 bytes, * so it needs to be packed to avoid having it padded to 40 bytes on * 64-bit architectures. */ struct srp_rsp { u8 opcode; u8 sol_not; u8 reserved1[2]; __be32 req_lim_delta; u64 tag; u8 reserved2[2]; u8 flags; u8 status; __be32 data_out_res_cnt; __be32 data_in_res_cnt; __be32 sense_data_len; __be32 resp_data_len; u8 data[0]; } __attribute__((packed)); struct srp_cred_req { u8 opcode; u8 sol_not; u8 reserved[2]; __be32 req_lim_delta; u64 tag; }; struct srp_cred_rsp { u8 opcode; u8 reserved[7]; u64 tag; }; /* * The SRP spec defines the fixed portion of the AER_REQ structure to be * 36 bytes, so it needs to be packed to avoid having it padded to 40 bytes * on 64-bit architectures. */ struct srp_aer_req { u8 opcode; u8 sol_not; u8 reserved[2]; __be32 req_lim_delta; u64 tag; u32 reserved2; struct scsi_lun lun; __be32 sense_data_len; u32 reserved3; u8 sense_data[0]; } __attribute__((packed)); struct srp_aer_rsp { u8 opcode; u8 reserved[7]; u64 tag; }; #endif /* SCSI_SRP_H */ cgit.cgi/linux/net-next.git/diff/net/nfc/hci/Kconfig?h=nds-private-remove&id=dd86e373e09fb16b83e8adf5c48c421a4ca76468&id2=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/nfc/hci/Kconfig')