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linux_dsm_epyc7002/arch/s390/include/asm/qdio.h
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp. 2000, 2008
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>
* Jan Glauber <jang@linux.vnet.ibm.com>
*
*/
#ifndef __QDIO_H__
#define __QDIO_H__
#include <linux/interrupt.h>
#include <asm/cio.h>
#include <asm/ccwdev.h>
/* only use 4 queues to save some cachelines */
#define QDIO_MAX_QUEUES_PER_IRQ 4
#define QDIO_MAX_BUFFERS_PER_Q 128
#define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1)
#define QDIO_MAX_ELEMENTS_PER_BUFFER 16
#define QDIO_SBAL_SIZE 256
#define QDIO_QETH_QFMT 0
#define QDIO_ZFCP_QFMT 1
#define QDIO_IQDIO_QFMT 2
/**
* struct qdesfmt0 - queue descriptor, format 0
* @sliba: storage list information block address
* @sla: storage list address
* @slsba: storage list state block address
* @akey: access key for DLIB
* @bkey: access key for SL
* @ckey: access key for SBALs
* @dkey: access key for SLSB
*/
struct qdesfmt0 {
u64 sliba;
u64 sla;
u64 slsba;
u32 : 32;
u32 akey : 4;
u32 bkey : 4;
u32 ckey : 4;
u32 dkey : 4;
u32 : 16;
} __attribute__ ((packed));
#define QDR_AC_MULTI_BUFFER_ENABLE 0x01
/**
* struct qdr - queue description record (QDR)
* @qfmt: queue format
* @pfmt: implementation dependent parameter format
* @ac: adapter characteristics
* @iqdcnt: input queue descriptor count
* @oqdcnt: output queue descriptor count
* @iqdsz: inpout queue descriptor size
* @oqdsz: output queue descriptor size
* @qiba: queue information block address
* @qkey: queue information block key
* @qdf0: queue descriptions
*/
struct qdr {
u32 qfmt : 8;
u32 pfmt : 8;
u32 : 8;
u32 ac : 8;
u32 : 8;
u32 iqdcnt : 8;
u32 : 8;
u32 oqdcnt : 8;
u32 : 8;
u32 iqdsz : 8;
u32 : 8;
u32 oqdsz : 8;
/* private: */
u32 res[9];
/* public: */
u64 qiba;
u32 : 32;
u32 qkey : 4;
u32 : 28;
struct qdesfmt0 qdf0[126];
} __packed __aligned(PAGE_SIZE);
#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
#define QIB_RFLAGS_ENABLE_QEBSM 0x80
#define QIB_RFLAGS_ENABLE_DATA_DIV 0x02
/**
* struct qib - queue information block (QIB)
* @qfmt: queue format
* @pfmt: implementation dependent parameter format
* @rflags: QEBSM
* @ac: adapter characteristics
* @isliba: absolute address of first input SLIB
* @osliba: absolute address of first output SLIB
* @ebcnam: adapter identifier in EBCDIC
* @parm: implementation dependent parameters
*/
struct qib {
u32 qfmt : 8;
u32 pfmt : 8;
u32 rflags : 8;
u32 ac : 8;
u32 : 32;
u64 isliba;
u64 osliba;
u32 : 32;
u32 : 32;
u8 ebcnam[8];
/* private: */
u8 res[88];
/* public: */
u8 parm[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(256)));
/**
* struct slibe - storage list information block element (SLIBE)
* @parms: implementation dependent parameters
*/
struct slibe {
u64 parms;
};
/**
* struct qaob - queue asynchronous operation block
* @res0: reserved parameters
* @res1: reserved parameter
* @res2: reserved parameter
* @res3: reserved parameter
* @aorc: asynchronous operation return code
* @flags: internal flags
* @cbtbs: control block type
* @sb_count: number of storage blocks
* @sba: storage block element addresses
* @dcount: size of storage block elements
* @user0: user defineable value
* @res4: reserved paramater
* @user1: user defineable value
* @user2: user defineable value
*/
struct qaob {
u64 res0[6];
u8 res1;
u8 res2;
u8 res3;
u8 aorc;
u8 flags;
u16 cbtbs;
u8 sb_count;
u64 sba[QDIO_MAX_ELEMENTS_PER_BUFFER];
u16 dcount[QDIO_MAX_ELEMENTS_PER_BUFFER];
u64 user0;
u64 res4[2];
u64 user1;
u64 user2;
} __attribute__ ((packed, aligned(256)));
/**
* struct slib - storage list information block (SLIB)
* @nsliba: next SLIB address (if any)
* @sla: SL address
* @slsba: SLSB address
* @slibe: SLIB elements
*/
struct slib {
u64 nsliba;
u64 sla;
u64 slsba;
/* private: */
u8 res[1000];
/* public: */
struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(2048)));
#define SBAL_EFLAGS_LAST_ENTRY 0x40
#define SBAL_EFLAGS_CONTIGUOUS 0x20
#define SBAL_EFLAGS_FIRST_FRAG 0x04
#define SBAL_EFLAGS_MIDDLE_FRAG 0x08
#define SBAL_EFLAGS_LAST_FRAG 0x0c
#define SBAL_EFLAGS_MASK 0x6f
#define SBAL_SFLAGS0_PCI_REQ 0x40
#define SBAL_SFLAGS0_DATA_CONTINUATION 0x20
/* Awesome OpenFCP extensions */
#define SBAL_SFLAGS0_TYPE_STATUS 0x00
#define SBAL_SFLAGS0_TYPE_WRITE 0x08
#define SBAL_SFLAGS0_TYPE_READ 0x10
#define SBAL_SFLAGS0_TYPE_WRITE_READ 0x18
#define SBAL_SFLAGS0_MORE_SBALS 0x04
#define SBAL_SFLAGS0_COMMAND 0x02
#define SBAL_SFLAGS0_LAST_SBAL 0x00
#define SBAL_SFLAGS0_ONLY_SBAL SBAL_SFLAGS0_COMMAND
#define SBAL_SFLAGS0_MIDDLE_SBAL SBAL_SFLAGS0_MORE_SBALS
#define SBAL_SFLAGS0_FIRST_SBAL (SBAL_SFLAGS0_MORE_SBALS | SBAL_SFLAGS0_COMMAND)
/**
* struct qdio_buffer_element - SBAL entry
* @eflags: SBAL entry flags
* @scount: SBAL count
* @sflags: whole SBAL flags
* @length: length
* @addr: address
*/
struct qdio_buffer_element {
u8 eflags;
/* private: */
u8 res1;
/* public: */
u8 scount;
u8 sflags;
u32 length;
void *addr;
} __attribute__ ((packed, aligned(16)));
/**
* struct qdio_buffer - storage block address list (SBAL)
* @element: SBAL entries
*/
struct qdio_buffer {
struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
} __attribute__ ((packed, aligned(256)));
/**
* struct sl_element - storage list entry
* @sbal: absolute SBAL address
*/
struct sl_element {
unsigned long sbal;
} __attribute__ ((packed));
/**
* struct sl - storage list (SL)
* @element: SL entries
*/
struct sl {
struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(1024)));
/**
* struct slsb - storage list state block (SLSB)
* @val: state per buffer
*/
struct slsb {
u8 val[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(256)));
/**
* struct qdio_outbuf_state - SBAL related asynchronous operation information
* (for communication with upper layer programs)
* (only required for use with completion queues)
* @flags: flags indicating state of buffer
* @aob: pointer to QAOB used for the particular SBAL
* @user: pointer to upper layer program's state information related to SBAL
* (stored in user1 data of QAOB)
*/
struct qdio_outbuf_state {
u8 flags;
struct qaob *aob;
void *user;
};
#define QDIO_OUTBUF_STATE_FLAG_NONE 0x00
#define QDIO_OUTBUF_STATE_FLAG_PENDING 0x01
#define CHSC_AC1_INITIATE_INPUTQ 0x80
/* qdio adapter-characteristics-1 flag */
#define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */
#define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */
#define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */
#define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */
#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */
#define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */
#define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */
#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080
#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040
#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010
#define CHSC_AC2_DATA_DIV_ENABLED 0x0002
#define CHSC_AC3_FORMAT2_CQ_AVAILABLE 0x8000
struct qdio_ssqd_desc {
u8 flags;
u8:8;
u16 sch;
u8 qfmt;
u8 parm;
u8 qdioac1;
u8 sch_class;
u8 pcnt;
u8 icnt;
u8:8;
u8 ocnt;
u8:8;
u8 mbccnt;
u16 qdioac2;
u64 sch_token;
u8 mro;
u8 mri;
u16 qdioac3;
u16:16;
u8:8;
u8 mmwc;
} __attribute__ ((packed));
/* params are: ccw_device, qdio_error, queue_number,
first element processed, number of elements processed, int_parm */
typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
int, int, unsigned long);
/* qdio errors reported to the upper-layer program */
#define QDIO_ERROR_ACTIVATE 0x0001
#define QDIO_ERROR_GET_BUF_STATE 0x0002
#define QDIO_ERROR_SET_BUF_STATE 0x0004
#define QDIO_ERROR_SLSB_STATE 0x0100
#define QDIO_ERROR_FATAL 0x00ff
#define QDIO_ERROR_TEMPORARY 0xff00
/* for qdio_cleanup */
#define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
#define QDIO_FLAG_CLEANUP_USING_HALT 0x02
/**
* struct qdio_initialize - qdio initialization data
* @cdev: associated ccw device
* @q_format: queue format
* @adapter_name: name for the adapter
* @qib_param_field_format: format for qib_parm_field
* @qib_param_field: pointer to 128 bytes or NULL, if no param field
* @qib_rflags: rflags to set
* @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL
* @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL
* @no_input_qs: number of input queues
* @no_output_qs: number of output queues
* @input_handler: handler to be called for input queues
* @output_handler: handler to be called for output queues
* @queue_start_poll_array: polling handlers (one per input queue or NULL)
* @int_parm: interruption parameter
* @input_sbal_addr_array: address of no_input_qs * 128 pointers
* @output_sbal_addr_array: address of no_output_qs * 128 pointers
* @output_sbal_state_array: no_output_qs * 128 state info (for CQ or NULL)
*/
struct qdio_initialize {
struct ccw_device *cdev;
unsigned char q_format;
unsigned char qdr_ac;
unsigned char adapter_name[8];
unsigned int qib_param_field_format;
unsigned char *qib_param_field;
unsigned char qib_rflags;
unsigned long *input_slib_elements;
unsigned long *output_slib_elements;
unsigned int no_input_qs;
unsigned int no_output_qs;
qdio_handler_t *input_handler;
qdio_handler_t *output_handler;
void (**queue_start_poll_array) (struct ccw_device *, int,
unsigned long);
int scan_threshold;
unsigned long int_parm;
void **input_sbal_addr_array;
void **output_sbal_addr_array;
struct qdio_outbuf_state *output_sbal_state_array;
};
/**
* enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc()
* @l3_ipv6_addr: entry contains IPv6 address
* @l3_ipv4_addr: entry contains IPv4 address
* @l2_addr_lnid: entry contains MAC address and VLAN ID
*/
enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid};
/**
* struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc()
* @nit: Network interface token
* @addr: Address of one of the three types
*
* The struct is passed to the callback function by qdio_brinfo_desc()
*/
struct qdio_brinfo_entry_l3_ipv6 {
u64 nit;
struct { unsigned char _s6_addr[16]; } addr;
} __packed;
struct qdio_brinfo_entry_l3_ipv4 {
u64 nit;
struct { uint32_t _s_addr; } addr;
} __packed;
struct qdio_brinfo_entry_l2 {
u64 nit;
struct { u8 mac[6]; u16 lnid; } addr_lnid;
} __packed;
#define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */
#define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */
#define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */
#define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */
#define QDIO_FLAG_SYNC_INPUT 0x01
#define QDIO_FLAG_SYNC_OUTPUT 0x02
#define QDIO_FLAG_PCI_OUT 0x10
int qdio_alloc_buffers(struct qdio_buffer **buf, unsigned int count);
void qdio_free_buffers(struct qdio_buffer **buf, unsigned int count);
void qdio_reset_buffers(struct qdio_buffer **buf, unsigned int count);
extern int qdio_allocate(struct qdio_initialize *);
extern int qdio_establish(struct qdio_initialize *);
extern int qdio_activate(struct ccw_device *);
extern void qdio_release_aob(struct qaob *);
extern int do_QDIO(struct ccw_device *, unsigned int, int, unsigned int,
unsigned int);
extern int qdio_start_irq(struct ccw_device *, int);
extern int qdio_stop_irq(struct ccw_device *, int);
extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *);
extern int qdio_shutdown(struct ccw_device *, int);
extern int qdio_free(struct ccw_device *);
extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *);
extern int qdio_pnso_brinfo(struct subchannel_id schid,
int cnc, u16 *response,
void (*cb)(void *priv, enum qdio_brinfo_entry_type type,
void *entry),
void *priv);
#endif /* __QDIO_H__ */
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