mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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>
385 lines
13 KiB
C
385 lines
13 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef XILINX_LL_TEMAC_H
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#define XILINX_LL_TEMAC_H
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#include <linux/netdevice.h>
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#include <linux/of.h>
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#include <linux/spinlock.h>
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#ifdef CONFIG_PPC_DCR
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#include <asm/dcr.h>
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#include <asm/dcr-regs.h>
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#endif
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/* packet size info */
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#define XTE_HDR_SIZE 14 /* size of Ethernet header */
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#define XTE_TRL_SIZE 4 /* size of Ethernet trailer (FCS) */
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#define XTE_JUMBO_MTU 9000
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#define XTE_MAX_JUMBO_FRAME_SIZE (XTE_JUMBO_MTU + XTE_HDR_SIZE + XTE_TRL_SIZE)
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/* Configuration options */
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/* Accept all incoming packets.
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* This option defaults to disabled (cleared) */
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#define XTE_OPTION_PROMISC (1 << 0)
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/* Jumbo frame support for Tx & Rx.
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* This option defaults to disabled (cleared) */
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#define XTE_OPTION_JUMBO (1 << 1)
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/* VLAN Rx & Tx frame support.
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* This option defaults to disabled (cleared) */
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#define XTE_OPTION_VLAN (1 << 2)
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/* Enable recognition of flow control frames on Rx
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* This option defaults to enabled (set) */
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#define XTE_OPTION_FLOW_CONTROL (1 << 4)
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/* Strip FCS and PAD from incoming frames.
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* Note: PAD from VLAN frames is not stripped.
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* This option defaults to disabled (set) */
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#define XTE_OPTION_FCS_STRIP (1 << 5)
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/* Generate FCS field and add PAD automatically for outgoing frames.
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* This option defaults to enabled (set) */
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#define XTE_OPTION_FCS_INSERT (1 << 6)
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/* Enable Length/Type error checking for incoming frames. When this option is
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set, the MAC will filter frames that have a mismatched type/length field
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and if XTE_OPTION_REPORT_RXERR is set, the user is notified when these
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types of frames are encountered. When this option is cleared, the MAC will
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allow these types of frames to be received.
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This option defaults to enabled (set) */
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#define XTE_OPTION_LENTYPE_ERR (1 << 7)
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/* Enable the transmitter.
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* This option defaults to enabled (set) */
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#define XTE_OPTION_TXEN (1 << 11)
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/* Enable the receiver
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* This option defaults to enabled (set) */
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#define XTE_OPTION_RXEN (1 << 12)
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/* Default options set when device is initialized or reset */
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#define XTE_OPTION_DEFAULTS \
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(XTE_OPTION_TXEN | \
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XTE_OPTION_FLOW_CONTROL | \
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XTE_OPTION_RXEN)
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/* XPS_LL_TEMAC SDMA registers definition */
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#define TX_NXTDESC_PTR 0x00 /* r */
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#define TX_CURBUF_ADDR 0x01 /* r */
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#define TX_CURBUF_LENGTH 0x02 /* r */
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#define TX_CURDESC_PTR 0x03 /* rw */
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#define TX_TAILDESC_PTR 0x04 /* rw */
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#define TX_CHNL_CTRL 0x05 /* rw */
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/*
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0:7 24:31 IRQTimeout
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8:15 16:23 IRQCount
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16:20 11:15 Reserved
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21 10 0
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22 9 UseIntOnEnd
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23 8 LdIRQCnt
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24 7 IRQEn
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25:28 3:6 Reserved
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29 2 IrqErrEn
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30 1 IrqDlyEn
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31 0 IrqCoalEn
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*/
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#define CHNL_CTRL_IRQ_IOE (1 << 9)
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#define CHNL_CTRL_IRQ_EN (1 << 7)
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#define CHNL_CTRL_IRQ_ERR_EN (1 << 2)
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#define CHNL_CTRL_IRQ_DLY_EN (1 << 1)
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#define CHNL_CTRL_IRQ_COAL_EN (1 << 0)
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#define TX_IRQ_REG 0x06 /* rw */
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/*
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0:7 24:31 DltTmrValue
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8:15 16:23 ClscCntrValue
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16:17 14:15 Reserved
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18:21 10:13 ClscCnt
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22:23 8:9 DlyCnt
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24:28 3::7 Reserved
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29 2 ErrIrq
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30 1 DlyIrq
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31 0 CoalIrq
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*/
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#define TX_CHNL_STS 0x07 /* r */
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/*
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0:9 22:31 Reserved
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10 21 TailPErr
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11 20 CmpErr
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12 19 AddrErr
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13 18 NxtPErr
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14 17 CurPErr
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15 16 BsyWr
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16:23 8:15 Reserved
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24 7 Error
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25 6 IOE
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26 5 SOE
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27 4 Cmplt
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28 3 SOP
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29 2 EOP
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30 1 EngBusy
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31 0 Reserved
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*/
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#define RX_NXTDESC_PTR 0x08 /* r */
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#define RX_CURBUF_ADDR 0x09 /* r */
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#define RX_CURBUF_LENGTH 0x0a /* r */
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#define RX_CURDESC_PTR 0x0b /* rw */
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#define RX_TAILDESC_PTR 0x0c /* rw */
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#define RX_CHNL_CTRL 0x0d /* rw */
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/*
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0:7 24:31 IRQTimeout
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8:15 16:23 IRQCount
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16:20 11:15 Reserved
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21 10 0
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22 9 UseIntOnEnd
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23 8 LdIRQCnt
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24 7 IRQEn
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25:28 3:6 Reserved
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29 2 IrqErrEn
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30 1 IrqDlyEn
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31 0 IrqCoalEn
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*/
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#define RX_IRQ_REG 0x0e /* rw */
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#define IRQ_COAL (1 << 0)
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#define IRQ_DLY (1 << 1)
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#define IRQ_ERR (1 << 2)
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#define IRQ_DMAERR (1 << 7) /* this is not documented ??? */
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/*
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0:7 24:31 DltTmrValue
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8:15 16:23 ClscCntrValue
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16:17 14:15 Reserved
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18:21 10:13 ClscCnt
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22:23 8:9 DlyCnt
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24:28 3::7 Reserved
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*/
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#define RX_CHNL_STS 0x0f /* r */
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#define CHNL_STS_ENGBUSY (1 << 1)
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#define CHNL_STS_EOP (1 << 2)
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#define CHNL_STS_SOP (1 << 3)
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#define CHNL_STS_CMPLT (1 << 4)
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#define CHNL_STS_SOE (1 << 5)
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#define CHNL_STS_IOE (1 << 6)
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#define CHNL_STS_ERR (1 << 7)
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#define CHNL_STS_BSYWR (1 << 16)
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#define CHNL_STS_CURPERR (1 << 17)
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#define CHNL_STS_NXTPERR (1 << 18)
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#define CHNL_STS_ADDRERR (1 << 19)
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#define CHNL_STS_CMPERR (1 << 20)
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#define CHNL_STS_TAILERR (1 << 21)
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/*
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0:9 22:31 Reserved
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10 21 TailPErr
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11 20 CmpErr
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12 19 AddrErr
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13 18 NxtPErr
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14 17 CurPErr
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15 16 BsyWr
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16:23 8:15 Reserved
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24 7 Error
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25 6 IOE
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26 5 SOE
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27 4 Cmplt
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28 3 SOP
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29 2 EOP
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30 1 EngBusy
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31 0 Reserved
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*/
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#define DMA_CONTROL_REG 0x10 /* rw */
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#define DMA_CONTROL_RST (1 << 0)
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#define DMA_TAIL_ENABLE (1 << 2)
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/* XPS_LL_TEMAC direct registers definition */
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#define XTE_RAF0_OFFSET 0x00
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#define RAF0_RST (1 << 0)
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#define RAF0_MCSTREJ (1 << 1)
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#define RAF0_BCSTREJ (1 << 2)
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#define XTE_TPF0_OFFSET 0x04
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#define XTE_IFGP0_OFFSET 0x08
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#define XTE_ISR0_OFFSET 0x0c
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#define ISR0_HARDACSCMPLT (1 << 0)
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#define ISR0_AUTONEG (1 << 1)
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#define ISR0_RXCMPLT (1 << 2)
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#define ISR0_RXREJ (1 << 3)
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#define ISR0_RXFIFOOVR (1 << 4)
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#define ISR0_TXCMPLT (1 << 5)
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#define ISR0_RXDCMLCK (1 << 6)
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#define XTE_IPR0_OFFSET 0x10
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#define XTE_IER0_OFFSET 0x14
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#define XTE_MSW0_OFFSET 0x20
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#define XTE_LSW0_OFFSET 0x24
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#define XTE_CTL0_OFFSET 0x28
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#define XTE_RDY0_OFFSET 0x2c
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#define XTE_RSE_MIIM_RR_MASK 0x0002
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#define XTE_RSE_MIIM_WR_MASK 0x0004
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#define XTE_RSE_CFG_RR_MASK 0x0020
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#define XTE_RSE_CFG_WR_MASK 0x0040
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#define XTE_RDY0_HARD_ACS_RDY_MASK (0x10000)
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/* XPS_LL_TEMAC indirect registers offset definition */
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#define XTE_RXC0_OFFSET 0x00000200 /* Rx configuration word 0 */
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#define XTE_RXC1_OFFSET 0x00000240 /* Rx configuration word 1 */
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#define XTE_RXC1_RXRST_MASK (1 << 31) /* Receiver reset */
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#define XTE_RXC1_RXJMBO_MASK (1 << 30) /* Jumbo frame enable */
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#define XTE_RXC1_RXFCS_MASK (1 << 29) /* FCS not stripped */
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#define XTE_RXC1_RXEN_MASK (1 << 28) /* Receiver enable */
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#define XTE_RXC1_RXVLAN_MASK (1 << 27) /* VLAN enable */
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#define XTE_RXC1_RXHD_MASK (1 << 26) /* Half duplex */
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#define XTE_RXC1_RXLT_MASK (1 << 25) /* Length/type check disable */
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#define XTE_TXC_OFFSET 0x00000280 /* Tx configuration */
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#define XTE_TXC_TXRST_MASK (1 << 31) /* Transmitter reset */
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#define XTE_TXC_TXJMBO_MASK (1 << 30) /* Jumbo frame enable */
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#define XTE_TXC_TXFCS_MASK (1 << 29) /* Generate FCS */
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#define XTE_TXC_TXEN_MASK (1 << 28) /* Transmitter enable */
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#define XTE_TXC_TXVLAN_MASK (1 << 27) /* VLAN enable */
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#define XTE_TXC_TXHD_MASK (1 << 26) /* Half duplex */
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#define XTE_FCC_OFFSET 0x000002C0 /* Flow control config */
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#define XTE_FCC_RXFLO_MASK (1 << 29) /* Rx flow control enable */
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#define XTE_FCC_TXFLO_MASK (1 << 30) /* Tx flow control enable */
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#define XTE_EMCFG_OFFSET 0x00000300 /* EMAC configuration */
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#define XTE_EMCFG_LINKSPD_MASK 0xC0000000 /* Link speed */
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#define XTE_EMCFG_HOSTEN_MASK (1 << 26) /* Host interface enable */
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#define XTE_EMCFG_LINKSPD_10 0x00000000 /* 10 Mbit LINKSPD_MASK */
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#define XTE_EMCFG_LINKSPD_100 (1 << 30) /* 100 Mbit LINKSPD_MASK */
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#define XTE_EMCFG_LINKSPD_1000 (1 << 31) /* 1000 Mbit LINKSPD_MASK */
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#define XTE_GMIC_OFFSET 0x00000320 /* RGMII/SGMII config */
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#define XTE_MC_OFFSET 0x00000340 /* MDIO configuration */
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#define XTE_UAW0_OFFSET 0x00000380 /* Unicast address word 0 */
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#define XTE_UAW1_OFFSET 0x00000384 /* Unicast address word 1 */
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#define XTE_MAW0_OFFSET 0x00000388 /* Multicast addr word 0 */
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#define XTE_MAW1_OFFSET 0x0000038C /* Multicast addr word 1 */
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#define XTE_AFM_OFFSET 0x00000390 /* Promiscuous mode */
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#define XTE_AFM_EPPRM_MASK (1 << 31) /* Promiscuous mode enable */
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/* Interrupt Request status */
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#define XTE_TIS_OFFSET 0x000003A0
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#define TIS_FRIS (1 << 0)
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#define TIS_MRIS (1 << 1)
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#define TIS_MWIS (1 << 2)
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#define TIS_ARIS (1 << 3)
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#define TIS_AWIS (1 << 4)
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#define TIS_CRIS (1 << 5)
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#define TIS_CWIS (1 << 6)
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#define XTE_TIE_OFFSET 0x000003A4 /* Interrupt enable */
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/** MII Mamagement Control register (MGTCR) */
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#define XTE_MGTDR_OFFSET 0x000003B0 /* MII data */
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#define XTE_MIIMAI_OFFSET 0x000003B4 /* MII control */
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#define CNTLREG_WRITE_ENABLE_MASK 0x8000
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#define CNTLREG_EMAC1SEL_MASK 0x0400
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#define CNTLREG_ADDRESSCODE_MASK 0x03ff
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/* CDMAC descriptor status bit definitions */
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#define STS_CTRL_APP0_ERR (1 << 31)
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#define STS_CTRL_APP0_IRQONEND (1 << 30)
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/* undoccumented */
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#define STS_CTRL_APP0_STOPONEND (1 << 29)
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#define STS_CTRL_APP0_CMPLT (1 << 28)
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#define STS_CTRL_APP0_SOP (1 << 27)
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#define STS_CTRL_APP0_EOP (1 << 26)
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#define STS_CTRL_APP0_ENGBUSY (1 << 25)
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/* undocumented */
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#define STS_CTRL_APP0_ENGRST (1 << 24)
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#define TX_CONTROL_CALC_CSUM_MASK 1
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#define MULTICAST_CAM_TABLE_NUM 4
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/* TEMAC Synthesis features */
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#define TEMAC_FEATURE_RX_CSUM (1 << 0)
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#define TEMAC_FEATURE_TX_CSUM (1 << 1)
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/* TX/RX CURDESC_PTR points to first descriptor */
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/* TX/RX TAILDESC_PTR points to last descriptor in linked list */
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/**
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* struct cdmac_bd - LocalLink buffer descriptor format
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*
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* app0 bits:
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* 0 Error
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* 1 IrqOnEnd generate an interrupt at completion of DMA op
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* 2 reserved
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* 3 completed Current descriptor completed
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* 4 SOP TX - marks first desc/ RX marks first desct
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* 5 EOP TX marks last desc/RX marks last desc
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* 6 EngBusy DMA is processing
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* 7 reserved
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* 8:31 application specific
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*/
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struct cdmac_bd {
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u32 next; /* Physical address of next buffer descriptor */
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u32 phys;
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u32 len;
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u32 app0;
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u32 app1; /* TX start << 16 | insert */
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u32 app2; /* TX csum */
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u32 app3;
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u32 app4; /* skb for TX length for RX */
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};
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struct temac_local {
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struct net_device *ndev;
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struct device *dev;
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/* Connection to PHY device */
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struct device_node *phy_node;
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/* MDIO bus data */
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struct mii_bus *mii_bus; /* MII bus reference */
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/* IO registers, dma functions and IRQs */
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void __iomem *regs;
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void __iomem *sdma_regs;
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#ifdef CONFIG_PPC_DCR
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dcr_host_t sdma_dcrs;
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#endif
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u32 (*dma_in)(struct temac_local *, int);
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void (*dma_out)(struct temac_local *, int, u32);
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int tx_irq;
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int rx_irq;
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int emac_num;
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struct sk_buff **rx_skb;
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spinlock_t rx_lock;
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struct mutex indirect_mutex;
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u32 options; /* Current options word */
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int last_link;
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unsigned int temac_features;
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/* Buffer descriptors */
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struct cdmac_bd *tx_bd_v;
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dma_addr_t tx_bd_p;
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struct cdmac_bd *rx_bd_v;
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dma_addr_t rx_bd_p;
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int tx_bd_ci;
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int tx_bd_next;
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int tx_bd_tail;
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int rx_bd_ci;
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};
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/* xilinx_temac.c */
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u32 temac_ior(struct temac_local *lp, int offset);
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void temac_iow(struct temac_local *lp, int offset, u32 value);
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int temac_indirect_busywait(struct temac_local *lp);
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u32 temac_indirect_in32(struct temac_local *lp, int reg);
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void temac_indirect_out32(struct temac_local *lp, int reg, u32 value);
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/* xilinx_temac_mdio.c */
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int temac_mdio_setup(struct temac_local *lp, struct device_node *np);
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void temac_mdio_teardown(struct temac_local *lp);
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#endif /* XILINX_LL_TEMAC_H */
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