b24413180f
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>
266 lines
7.6 KiB
C
266 lines
7.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* drivers/atm/midway.h - Efficient Networks Midway (SAR) description */
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/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
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#ifndef DRIVERS_ATM_MIDWAY_H
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#define DRIVERS_ATM_MIDWAY_H
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#define NR_VCI 1024 /* number of VCIs */
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#define NR_VCI_LD 10 /* log2(NR_VCI) */
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#define NR_DMA_RX 512 /* RX DMA queue entries */
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#define NR_DMA_TX 512 /* TX DMA queue entries */
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#define NR_SERVICE NR_VCI /* service list size */
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#define NR_CHAN 8 /* number of TX channels */
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#define TS_CLOCK 25000000 /* traffic shaper clock (cell/sec) */
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#define MAP_MAX_SIZE 0x00400000 /* memory window for max config */
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#define EPROM_SIZE 0x00010000
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#define MEM_VALID 0xffc00000 /* mask base address with this */
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#define PHY_BASE 0x00020000 /* offset of PHY register are */
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#define REG_BASE 0x00040000 /* offset of Midway register area */
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#define RAM_BASE 0x00200000 /* offset of RAM area */
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#define RAM_INCREMENT 0x00020000 /* probe for RAM every 128kB */
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#define MID_VCI_BASE RAM_BASE
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#define MID_DMA_RX_BASE (MID_VCI_BASE+NR_VCI*16)
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#define MID_DMA_TX_BASE (MID_DMA_RX_BASE+NR_DMA_RX*8)
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#define MID_SERVICE_BASE (MID_DMA_TX_BASE+NR_DMA_TX*8)
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#define MID_FREE_BASE (MID_SERVICE_BASE+NR_SERVICE*4)
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#define MAC_LEN 6 /* atm.h */
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#define MID_MIN_BUF_SIZE (1024) /* 1 kB is minimum */
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#define MID_MAX_BUF_SIZE (128*1024) /* 128 kB is maximum */
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#define RX_DESCR_SIZE 1 /* RX PDU descr is 1 longword */
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#define TX_DESCR_SIZE 2 /* TX PDU descr is 2 longwords */
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#define AAL5_TRAILER (ATM_AAL5_TRAILER/4) /* AAL5 trailer is 2 longwords */
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#define TX_GAP 8 /* TX buffer gap (words) */
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/*
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* Midway Reset/ID
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*
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* All values read-only. Writing to this register resets Midway chip.
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*/
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#define MID_RES_ID_MCON 0x00 /* Midway Reset/ID */
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#define MID_ID 0xf0000000 /* Midway version */
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#define MID_SHIFT 24
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#define MID_MOTHER_ID 0x00000700 /* mother board id */
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#define MID_MOTHER_SHIFT 8
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#define MID_CON_TI 0x00000080 /* 0: normal ctrl; 1: SABRE */
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#define MID_CON_SUNI 0x00000040 /* 0: UTOPIA; 1: SUNI */
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#define MID_CON_V6 0x00000020 /* 0: non-pipel UTOPIA (required iff
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!CON_SUNI; 1: UTOPIA */
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#define DAUGHTER_ID 0x0000001f /* daughter board id */
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/*
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* Interrupt Status Acknowledge, Interrupt Status & Interrupt Enable
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*/
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#define MID_ISA 0x01 /* Interrupt Status Acknowledge */
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#define MID_IS 0x02 /* Interrupt Status */
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#define MID_IE 0x03 /* Interrupt Enable */
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#define MID_TX_COMPLETE_7 0x00010000 /* channel N completed a PDU */
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#define MID_TX_COMPLETE_6 0x00008000 /* transmission */
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#define MID_TX_COMPLETE_5 0x00004000
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#define MID_TX_COMPLETE_4 0x00002000
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#define MID_TX_COMPLETE_3 0x00001000
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#define MID_TX_COMPLETE_2 0x00000800
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#define MID_TX_COMPLETE_1 0x00000400
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#define MID_TX_COMPLETE_0 0x00000200
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#define MID_TX_COMPLETE 0x0001fe00 /* any TX */
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#define MID_TX_DMA_OVFL 0x00000100 /* DMA to adapter overflow */
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#define MID_TX_IDENT_MISM 0x00000080 /* TX: ident mismatch => halted */
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#define MID_DMA_LERR_ACK 0x00000040 /* LERR - SBus ? */
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#define MID_DMA_ERR_ACK 0x00000020 /* DMA error */
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#define MID_RX_DMA_COMPLETE 0x00000010 /* DMA to host done */
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#define MID_TX_DMA_COMPLETE 0x00000008 /* DMA from host done */
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#define MID_SERVICE 0x00000004 /* something in service list */
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#define MID_SUNI_INT 0x00000002 /* interrupt from SUNI */
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#define MID_STAT_OVFL 0x00000001 /* statistics overflow */
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/*
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* Master Control/Status
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*/
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#define MID_MC_S 0x04
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#define MID_INT_SELECT 0x000001C0 /* Interrupt level (000: off) */
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#define MID_INT_SEL_SHIFT 6
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#define MID_TX_LOCK_MODE 0x00000020 /* 0: streaming; 1: TX ovfl->lock */
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#define MID_DMA_ENABLE 0x00000010 /* R: 0: disable; 1: enable
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W: 0: no change; 1: enable */
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#define MID_TX_ENABLE 0x00000008 /* R: 0: TX disabled; 1: enabled
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W: 0: no change; 1: enable */
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#define MID_RX_ENABLE 0x00000004 /* like TX */
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#define MID_WAIT_1MS 0x00000002 /* R: 0: timer not running; 1: running
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W: 0: no change; 1: no interrupts
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for 1 ms */
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#define MID_WAIT_500US 0x00000001 /* like WAIT_1MS, but 0.5 ms */
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/*
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* Statistics
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*
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* Cleared when reading.
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*/
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#define MID_STAT 0x05
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#define MID_VCI_TRASH 0xFFFF0000 /* trashed cells because of VCI mode */
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#define MID_VCI_TRASH_SHIFT 16
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#define MID_OVFL_TRASH 0x0000FFFF /* trashed cells because of overflow */
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/*
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* Address registers
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*/
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#define MID_SERV_WRITE 0x06 /* free pos in service area (R, 10 bits) */
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#define MID_DMA_ADDR 0x07 /* virtual DMA address (R, 32 bits) */
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#define MID_DMA_WR_RX 0x08 /* (RW, 9 bits) */
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#define MID_DMA_RD_RX 0x09
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#define MID_DMA_WR_TX 0x0A
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#define MID_DMA_RD_TX 0x0B
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/*
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* Transmit Place Registers (0x10+4*channel)
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*/
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#define MID_TX_PLACE(c) (0x10+4*(c))
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#define MID_SIZE 0x00003800 /* size, N*256 x 32 bit */
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#define MID_SIZE_SHIFT 11
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#define MID_LOCATION 0x000007FF /* location in adapter memory (word) */
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#define MID_LOC_SKIP 8 /* 8 bits of location are always zero
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(applies to all uses of location) */
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/*
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* Transmit ReadPtr Registers (0x11+4*channel)
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*/
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#define MID_TX_RDPTR(c) (0x11+4*(c))
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#define MID_READ_PTR 0x00007FFF /* next word for PHY */
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/*
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* Transmit DescrStart Registers (0x12+4*channel)
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*/
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#define MID_TX_DESCRSTART(c) (0x12+4*(c))
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#define MID_DESCR_START 0x00007FFF /* seg buffer being DMAed */
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#define ENI155_MAGIC 0xa54b872d
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struct midway_eprom {
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unsigned char mac[MAC_LEN],inv_mac[MAC_LEN];
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unsigned char pad[36];
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u32 serial,inv_serial;
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u32 magic,inv_magic;
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};
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/*
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* VCI table entry
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*/
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#define MID_VCI_IN_SERVICE 0x00000001 /* set if VCI is currently in
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service list */
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#define MID_VCI_SIZE 0x00038000 /* reassembly buffer size,
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2*<size> kB */
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#define MID_VCI_SIZE_SHIFT 15
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#define MID_VCI_LOCATION 0x1ffc0000 /* buffer location */
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#define MID_VCI_LOCATION_SHIFT 18
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#define MID_VCI_PTI_MODE 0x20000000 /* 0: trash, 1: preserve */
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#define MID_VCI_MODE 0xc0000000
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#define MID_VCI_MODE_SHIFT 30
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#define MID_VCI_READ 0x00007fff
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#define MID_VCI_READ_SHIFT 0
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#define MID_VCI_DESCR 0x7fff0000
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#define MID_VCI_DESCR_SHIFT 16
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#define MID_VCI_COUNT 0x000007ff
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#define MID_VCI_COUNT_SHIFT 0
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#define MID_VCI_STATE 0x0000c000
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#define MID_VCI_STATE_SHIFT 14
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#define MID_VCI_WRITE 0x7fff0000
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#define MID_VCI_WRITE_SHIFT 16
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#define MID_MODE_TRASH 0
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#define MID_MODE_RAW 1
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#define MID_MODE_AAL5 2
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/*
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* Reassembly buffer descriptor
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*/
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#define MID_RED_COUNT 0x000007ff
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#define MID_RED_CRC_ERR 0x00000800
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#define MID_RED_T 0x00001000
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#define MID_RED_CE 0x00010000
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#define MID_RED_CLP 0x01000000
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#define MID_RED_IDEN 0xfe000000
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#define MID_RED_SHIFT 25
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#define MID_RED_RX_ID 0x1b /* constant identifier */
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/*
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* Segmentation buffer descriptor
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*/
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#define MID_SEG_COUNT MID_RED_COUNT
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#define MID_SEG_RATE 0x01f80000
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#define MID_SEG_RATE_SHIFT 19
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#define MID_SEG_PR 0x06000000
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#define MID_SEG_PR_SHIFT 25
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#define MID_SEG_AAL5 0x08000000
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#define MID_SEG_ID 0xf0000000
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#define MID_SEG_ID_SHIFT 28
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#define MID_SEG_MAX_RATE 63
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#define MID_SEG_CLP 0x00000001
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#define MID_SEG_PTI 0x0000000e
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#define MID_SEG_PTI_SHIFT 1
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#define MID_SEG_VCI 0x00003ff0
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#define MID_SEG_VCI_SHIFT 4
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#define MID_SEG_TX_ID 0xb /* constant identifier */
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/*
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* DMA entry
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*/
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#define MID_DMA_COUNT 0xffff0000
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#define MID_DMA_COUNT_SHIFT 16
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#define MID_DMA_END 0x00000020
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#define MID_DMA_TYPE 0x0000000f
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#define MID_DT_JK 0x3
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#define MID_DT_WORD 0x0
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#define MID_DT_2W 0x7
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#define MID_DT_4W 0x4
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#define MID_DT_8W 0x5
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#define MID_DT_16W 0x6
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#define MID_DT_2WM 0xf
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#define MID_DT_4WM 0xc
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#define MID_DT_8WM 0xd
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#define MID_DT_16WM 0xe
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/* only for RX*/
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#define MID_DMA_VCI 0x0000ffc0
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#define MID_DMA_VCI_SHIFT 6
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/* only for TX */
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#define MID_DMA_CHAN 0x000001c0
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#define MID_DMA_CHAN_SHIFT 6
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#define MID_DT_BYTE 0x1
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#define MID_DT_HWORD 0x2
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#endif
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