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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>
981 lines
39 KiB
C
981 lines
39 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _FORE200E_H
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#define _FORE200E_H
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#ifdef __KERNEL__
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/* rx buffer sizes */
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#define SMALL_BUFFER_SIZE 384 /* size of small buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
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#define LARGE_BUFFER_SIZE 4032 /* size of large buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
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#define RBD_BLK_SIZE 32 /* nbr of supplied rx buffers per rbd */
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#define MAX_PDU_SIZE 65535 /* maximum PDU size supported by AALs */
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#define BUFFER_S1_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 1 */
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#define BUFFER_L1_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 1 */
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#define BUFFER_S2_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 2 */
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#define BUFFER_L2_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 2 */
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#define BUFFER_S1_NBR (RBD_BLK_SIZE * 6)
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#define BUFFER_L1_NBR (RBD_BLK_SIZE * 4)
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#define BUFFER_S2_NBR (RBD_BLK_SIZE * 6)
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#define BUFFER_L2_NBR (RBD_BLK_SIZE * 4)
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#define QUEUE_SIZE_CMD 16 /* command queue capacity */
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#define QUEUE_SIZE_RX 64 /* receive queue capacity */
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#define QUEUE_SIZE_TX 256 /* transmit queue capacity */
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#define QUEUE_SIZE_BS 32 /* buffer supply queue capacity */
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#define FORE200E_VPI_BITS 0
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#define FORE200E_VCI_BITS 10
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#define NBR_CONNECT (1 << (FORE200E_VPI_BITS + FORE200E_VCI_BITS)) /* number of connections */
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#define TSD_FIXED 2
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#define TSD_EXTENSION 0
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#define TSD_NBR (TSD_FIXED + TSD_EXTENSION)
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/* the cp starts putting a received PDU into one *small* buffer,
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then it uses a number of *large* buffers for the trailing data.
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we compute here the total number of receive segment descriptors
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required to hold the largest possible PDU */
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#define RSD_REQUIRED (((MAX_PDU_SIZE - SMALL_BUFFER_SIZE + LARGE_BUFFER_SIZE) / LARGE_BUFFER_SIZE) + 1)
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#define RSD_FIXED 3
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/* RSD_REQUIRED receive segment descriptors are enough to describe a max-sized PDU,
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but we have to keep the size of the receive PDU descriptor multiple of 32 bytes,
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so we add one extra RSD to RSD_EXTENSION
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(WARNING: THIS MAY CHANGE IF BUFFER SIZES ARE MODIFIED) */
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#define RSD_EXTENSION ((RSD_REQUIRED - RSD_FIXED) + 1)
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#define RSD_NBR (RSD_FIXED + RSD_EXTENSION)
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#define FORE200E_DEV(d) ((struct fore200e*)((d)->dev_data))
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#define FORE200E_VCC(d) ((struct fore200e_vcc*)((d)->dev_data))
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/* bitfields endian games */
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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#define BITFIELD2(b1, b2) b1; b2;
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#define BITFIELD3(b1, b2, b3) b1; b2; b3;
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#define BITFIELD4(b1, b2, b3, b4) b1; b2; b3; b4;
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#define BITFIELD5(b1, b2, b3, b4, b5) b1; b2; b3; b4; b5;
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#define BITFIELD6(b1, b2, b3, b4, b5, b6) b1; b2; b3; b4; b5; b6;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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#define BITFIELD2(b1, b2) b2; b1;
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#define BITFIELD3(b1, b2, b3) b3; b2; b1;
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#define BITFIELD4(b1, b2, b3, b4) b4; b3; b2; b1;
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#define BITFIELD5(b1, b2, b3, b4, b5) b5; b4; b3; b2; b1;
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#define BITFIELD6(b1, b2, b3, b4, b5, b6) b6; b5; b4; b3; b2; b1;
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#else
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#error unknown bitfield endianess
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#endif
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/* ATM cell header (minus HEC byte) */
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typedef struct atm_header {
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BITFIELD5(
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u32 clp : 1, /* cell loss priority */
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u32 plt : 3, /* payload type */
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u32 vci : 16, /* virtual channel identifier */
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u32 vpi : 8, /* virtual path identifier */
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u32 gfc : 4 /* generic flow control */
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)
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} atm_header_t;
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/* ATM adaptation layer id */
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typedef enum fore200e_aal {
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FORE200E_AAL0 = 0,
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FORE200E_AAL34 = 4,
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FORE200E_AAL5 = 5,
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} fore200e_aal_t;
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/* transmit PDU descriptor specification */
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typedef struct tpd_spec {
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BITFIELD4(
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u32 length : 16, /* total PDU length */
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u32 nseg : 8, /* number of transmit segments */
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enum fore200e_aal aal : 4, /* adaptation layer */
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u32 intr : 4 /* interrupt requested */
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)
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} tpd_spec_t;
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/* transmit PDU rate control */
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typedef struct tpd_rate
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{
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BITFIELD2(
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u32 idle_cells : 16, /* number of idle cells to insert */
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u32 data_cells : 16 /* number of data cells to transmit */
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)
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} tpd_rate_t;
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/* transmit segment descriptor */
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typedef struct tsd {
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u32 buffer; /* transmit buffer DMA address */
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u32 length; /* number of bytes in buffer */
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} tsd_t;
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/* transmit PDU descriptor */
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typedef struct tpd {
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struct atm_header atm_header; /* ATM header minus HEC byte */
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struct tpd_spec spec; /* tpd specification */
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struct tpd_rate rate; /* tpd rate control */
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u32 pad; /* reserved */
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struct tsd tsd[ TSD_NBR ]; /* transmit segment descriptors */
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} tpd_t;
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/* receive segment descriptor */
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typedef struct rsd {
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u32 handle; /* host supplied receive buffer handle */
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u32 length; /* number of bytes in buffer */
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} rsd_t;
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/* receive PDU descriptor */
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typedef struct rpd {
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struct atm_header atm_header; /* ATM header minus HEC byte */
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u32 nseg; /* number of receive segments */
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struct rsd rsd[ RSD_NBR ]; /* receive segment descriptors */
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} rpd_t;
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/* buffer scheme */
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typedef enum buffer_scheme {
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BUFFER_SCHEME_ONE,
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BUFFER_SCHEME_TWO,
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BUFFER_SCHEME_NBR /* always last */
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} buffer_scheme_t;
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/* buffer magnitude */
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typedef enum buffer_magn {
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BUFFER_MAGN_SMALL,
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BUFFER_MAGN_LARGE,
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BUFFER_MAGN_NBR /* always last */
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} buffer_magn_t;
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/* receive buffer descriptor */
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typedef struct rbd {
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u32 handle; /* host supplied handle */
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u32 buffer_haddr; /* host DMA address of host buffer */
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} rbd_t;
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/* receive buffer descriptor block */
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typedef struct rbd_block {
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struct rbd rbd[ RBD_BLK_SIZE ]; /* receive buffer descriptor */
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} rbd_block_t;
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/* tpd DMA address */
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typedef struct tpd_haddr {
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BITFIELD3(
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u32 size : 4, /* tpd size expressed in 32 byte blocks */
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u32 pad : 1, /* reserved */
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u32 haddr : 27 /* tpd DMA addr aligned on 32 byte boundary */
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)
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} tpd_haddr_t;
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#define TPD_HADDR_SHIFT 5 /* addr aligned on 32 byte boundary */
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/* cp resident transmit queue entry */
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typedef struct cp_txq_entry {
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struct tpd_haddr tpd_haddr; /* host DMA address of tpd */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_txq_entry_t;
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/* cp resident receive queue entry */
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typedef struct cp_rxq_entry {
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u32 rpd_haddr; /* host DMA address of rpd */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_rxq_entry_t;
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/* cp resident buffer supply queue entry */
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typedef struct cp_bsq_entry {
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u32 rbd_block_haddr; /* host DMA address of rbd block */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_bsq_entry_t;
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/* completion status */
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typedef volatile enum status {
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STATUS_PENDING = (1<<0), /* initial status (written by host) */
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STATUS_COMPLETE = (1<<1), /* completion status (written by cp) */
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STATUS_FREE = (1<<2), /* initial status (written by host) */
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STATUS_ERROR = (1<<3) /* completion status (written by cp) */
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} status_t;
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/* cp operation code */
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typedef enum opcode {
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OPCODE_INITIALIZE = 1, /* initialize board */
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OPCODE_ACTIVATE_VCIN, /* activate incoming VCI */
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OPCODE_ACTIVATE_VCOUT, /* activate outgoing VCI */
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OPCODE_DEACTIVATE_VCIN, /* deactivate incoming VCI */
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OPCODE_DEACTIVATE_VCOUT, /* deactivate incoing VCI */
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OPCODE_GET_STATS, /* get board statistics */
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OPCODE_SET_OC3, /* set OC-3 registers */
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OPCODE_GET_OC3, /* get OC-3 registers */
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OPCODE_RESET_STATS, /* reset board statistics */
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OPCODE_GET_PROM, /* get expansion PROM data (PCI specific) */
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OPCODE_SET_VPI_BITS, /* set x bits of those decoded by the
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firmware to be low order bits from
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the VPI field of the ATM cell header */
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OPCODE_REQUEST_INTR = (1<<7) /* request interrupt */
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} opcode_t;
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/* virtual path / virtual channel identifiers */
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typedef struct vpvc {
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BITFIELD3(
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u32 vci : 16, /* virtual channel identifier */
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u32 vpi : 8, /* virtual path identifier */
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u32 pad : 8 /* reserved */
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)
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} vpvc_t;
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/* activate VC command opcode */
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typedef struct activate_opcode {
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BITFIELD4(
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enum opcode opcode : 8, /* cp opcode */
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enum fore200e_aal aal : 8, /* adaptation layer */
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enum buffer_scheme scheme : 8, /* buffer scheme */
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u32 pad : 8 /* reserved */
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)
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} activate_opcode_t;
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/* activate VC command block */
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typedef struct activate_block {
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struct activate_opcode opcode; /* activate VC command opcode */
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struct vpvc vpvc; /* VPI/VCI */
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u32 mtu; /* for AAL0 only */
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} activate_block_t;
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/* deactivate VC command opcode */
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typedef struct deactivate_opcode {
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BITFIELD2(
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enum opcode opcode : 8, /* cp opcode */
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u32 pad : 24 /* reserved */
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)
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} deactivate_opcode_t;
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/* deactivate VC command block */
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typedef struct deactivate_block {
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struct deactivate_opcode opcode; /* deactivate VC command opcode */
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struct vpvc vpvc; /* VPI/VCI */
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} deactivate_block_t;
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/* OC-3 registers */
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typedef struct oc3_regs {
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u32 reg[ 128 ]; /* see the PMC Sierra PC5346 S/UNI-155-Lite
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Saturn User Network Interface documentation
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for a description of the OC-3 chip registers */
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} oc3_regs_t;
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/* set/get OC-3 regs command opcode */
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typedef struct oc3_opcode {
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BITFIELD4(
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enum opcode opcode : 8, /* cp opcode */
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u32 reg : 8, /* register index */
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u32 value : 8, /* register value */
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u32 mask : 8 /* register mask that specifies which
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bits of the register value field
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are significant */
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)
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} oc3_opcode_t;
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/* set/get OC-3 regs command block */
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typedef struct oc3_block {
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struct oc3_opcode opcode; /* set/get OC-3 regs command opcode */
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u32 regs_haddr; /* host DMA address of OC-3 regs buffer */
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} oc3_block_t;
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/* physical encoding statistics */
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typedef struct stats_phy {
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__be32 crc_header_errors; /* cells received with bad header CRC */
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__be32 framing_errors; /* cells received with bad framing */
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__be32 pad[ 2 ]; /* i960 padding */
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} stats_phy_t;
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/* OC-3 statistics */
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typedef struct stats_oc3 {
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__be32 section_bip8_errors; /* section 8 bit interleaved parity */
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__be32 path_bip8_errors; /* path 8 bit interleaved parity */
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__be32 line_bip24_errors; /* line 24 bit interleaved parity */
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__be32 line_febe_errors; /* line far end block errors */
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__be32 path_febe_errors; /* path far end block errors */
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__be32 corr_hcs_errors; /* correctable header check sequence */
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__be32 ucorr_hcs_errors; /* uncorrectable header check sequence */
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__be32 pad[ 1 ]; /* i960 padding */
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} stats_oc3_t;
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/* ATM statistics */
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typedef struct stats_atm {
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__be32 cells_transmitted; /* cells transmitted */
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__be32 cells_received; /* cells received */
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__be32 vpi_bad_range; /* cell drops: VPI out of range */
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__be32 vpi_no_conn; /* cell drops: no connection for VPI */
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__be32 vci_bad_range; /* cell drops: VCI out of range */
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__be32 vci_no_conn; /* cell drops: no connection for VCI */
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__be32 pad[ 2 ]; /* i960 padding */
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} stats_atm_t;
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/* AAL0 statistics */
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typedef struct stats_aal0 {
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__be32 cells_transmitted; /* cells transmitted */
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__be32 cells_received; /* cells received */
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__be32 cells_dropped; /* cells dropped */
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__be32 pad[ 1 ]; /* i960 padding */
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} stats_aal0_t;
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/* AAL3/4 statistics */
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typedef struct stats_aal34 {
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__be32 cells_transmitted; /* cells transmitted from segmented PDUs */
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__be32 cells_received; /* cells reassembled into PDUs */
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__be32 cells_crc_errors; /* payload CRC error count */
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__be32 cells_protocol_errors; /* SAR or CS layer protocol errors */
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__be32 cells_dropped; /* cells dropped: partial reassembly */
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__be32 cspdus_transmitted; /* CS PDUs transmitted */
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__be32 cspdus_received; /* CS PDUs received */
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__be32 cspdus_protocol_errors; /* CS layer protocol errors */
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__be32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */
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__be32 pad[ 3 ]; /* i960 padding */
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} stats_aal34_t;
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/* AAL5 statistics */
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typedef struct stats_aal5 {
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__be32 cells_transmitted; /* cells transmitted from segmented SDUs */
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__be32 cells_received; /* cells reassembled into SDUs */
|
|
__be32 cells_dropped; /* reassembled PDUs dropped (in cells) */
|
|
__be32 congestion_experienced; /* CRC error and length wrong */
|
|
__be32 cspdus_transmitted; /* CS PDUs transmitted */
|
|
__be32 cspdus_received; /* CS PDUs received */
|
|
__be32 cspdus_crc_errors; /* CS PDUs CRC errors */
|
|
__be32 cspdus_protocol_errors; /* CS layer protocol errors */
|
|
__be32 cspdus_dropped; /* reassembled PDUs dropped */
|
|
__be32 pad[ 3 ]; /* i960 padding */
|
|
} stats_aal5_t;
|
|
|
|
|
|
/* auxiliary statistics */
|
|
|
|
typedef struct stats_aux {
|
|
__be32 small_b1_failed; /* receive BD allocation failures */
|
|
__be32 large_b1_failed; /* receive BD allocation failures */
|
|
__be32 small_b2_failed; /* receive BD allocation failures */
|
|
__be32 large_b2_failed; /* receive BD allocation failures */
|
|
__be32 rpd_alloc_failed; /* receive PDU allocation failures */
|
|
__be32 receive_carrier; /* no carrier = 0, carrier = 1 */
|
|
__be32 pad[ 2 ]; /* i960 padding */
|
|
} stats_aux_t;
|
|
|
|
|
|
/* whole statistics buffer */
|
|
|
|
typedef struct stats {
|
|
struct stats_phy phy; /* physical encoding statistics */
|
|
struct stats_oc3 oc3; /* OC-3 statistics */
|
|
struct stats_atm atm; /* ATM statistics */
|
|
struct stats_aal0 aal0; /* AAL0 statistics */
|
|
struct stats_aal34 aal34; /* AAL3/4 statistics */
|
|
struct stats_aal5 aal5; /* AAL5 statistics */
|
|
struct stats_aux aux; /* auxiliary statistics */
|
|
} stats_t;
|
|
|
|
|
|
/* get statistics command opcode */
|
|
|
|
typedef struct stats_opcode {
|
|
BITFIELD2(
|
|
enum opcode opcode : 8, /* cp opcode */
|
|
u32 pad : 24 /* reserved */
|
|
)
|
|
} stats_opcode_t;
|
|
|
|
|
|
/* get statistics command block */
|
|
|
|
typedef struct stats_block {
|
|
struct stats_opcode opcode; /* get statistics command opcode */
|
|
u32 stats_haddr; /* host DMA address of stats buffer */
|
|
} stats_block_t;
|
|
|
|
|
|
/* expansion PROM data (PCI specific) */
|
|
|
|
typedef struct prom_data {
|
|
u32 hw_revision; /* hardware revision */
|
|
u32 serial_number; /* board serial number */
|
|
u8 mac_addr[ 8 ]; /* board MAC address */
|
|
} prom_data_t;
|
|
|
|
|
|
/* get expansion PROM data command opcode */
|
|
|
|
typedef struct prom_opcode {
|
|
BITFIELD2(
|
|
enum opcode opcode : 8, /* cp opcode */
|
|
u32 pad : 24 /* reserved */
|
|
)
|
|
} prom_opcode_t;
|
|
|
|
|
|
/* get expansion PROM data command block */
|
|
|
|
typedef struct prom_block {
|
|
struct prom_opcode opcode; /* get PROM data command opcode */
|
|
u32 prom_haddr; /* host DMA address of PROM buffer */
|
|
} prom_block_t;
|
|
|
|
|
|
/* cp command */
|
|
|
|
typedef union cmd {
|
|
enum opcode opcode; /* operation code */
|
|
struct activate_block activate_block; /* activate VC */
|
|
struct deactivate_block deactivate_block; /* deactivate VC */
|
|
struct stats_block stats_block; /* get statistics */
|
|
struct prom_block prom_block; /* get expansion PROM data */
|
|
struct oc3_block oc3_block; /* get/set OC-3 registers */
|
|
u32 pad[ 4 ]; /* i960 padding */
|
|
} cmd_t;
|
|
|
|
|
|
/* cp resident command queue */
|
|
|
|
typedef struct cp_cmdq_entry {
|
|
union cmd cmd; /* command */
|
|
u32 status_haddr; /* host DMA address of completion status */
|
|
u32 pad[ 3 ]; /* i960 padding */
|
|
} cp_cmdq_entry_t;
|
|
|
|
|
|
/* host resident transmit queue entry */
|
|
|
|
typedef struct host_txq_entry {
|
|
struct cp_txq_entry __iomem *cp_entry; /* addr of cp resident tx queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct tpd* tpd; /* addr of transmit PDU descriptor */
|
|
u32 tpd_dma; /* DMA address of tpd */
|
|
struct sk_buff* skb; /* related skb */
|
|
void* data; /* copy of misaligned data */
|
|
unsigned long incarn; /* vc_map incarnation when submitted for tx */
|
|
struct fore200e_vc_map* vc_map;
|
|
|
|
} host_txq_entry_t;
|
|
|
|
|
|
/* host resident receive queue entry */
|
|
|
|
typedef struct host_rxq_entry {
|
|
struct cp_rxq_entry __iomem *cp_entry; /* addr of cp resident rx queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct rpd* rpd; /* addr of receive PDU descriptor */
|
|
u32 rpd_dma; /* DMA address of rpd */
|
|
} host_rxq_entry_t;
|
|
|
|
|
|
/* host resident buffer supply queue entry */
|
|
|
|
typedef struct host_bsq_entry {
|
|
struct cp_bsq_entry __iomem *cp_entry; /* addr of cp resident buffer supply queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct rbd_block* rbd_block; /* addr of receive buffer descriptor block */
|
|
u32 rbd_block_dma; /* DMA address od rdb */
|
|
} host_bsq_entry_t;
|
|
|
|
|
|
/* host resident command queue entry */
|
|
|
|
typedef struct host_cmdq_entry {
|
|
struct cp_cmdq_entry __iomem *cp_entry; /* addr of cp resident cmd queue entry */
|
|
enum status *status; /* addr of host resident status */
|
|
} host_cmdq_entry_t;
|
|
|
|
|
|
/* chunk of memory */
|
|
|
|
typedef struct chunk {
|
|
void* alloc_addr; /* base address of allocated chunk */
|
|
void* align_addr; /* base address of aligned chunk */
|
|
dma_addr_t dma_addr; /* DMA address of aligned chunk */
|
|
int direction; /* direction of DMA mapping */
|
|
u32 alloc_size; /* length of allocated chunk */
|
|
u32 align_size; /* length of aligned chunk */
|
|
} chunk_t;
|
|
|
|
#define dma_size align_size /* DMA useable size */
|
|
|
|
|
|
/* host resident receive buffer */
|
|
|
|
typedef struct buffer {
|
|
struct buffer* next; /* next receive buffer */
|
|
enum buffer_scheme scheme; /* buffer scheme */
|
|
enum buffer_magn magn; /* buffer magnitude */
|
|
struct chunk data; /* data buffer */
|
|
#ifdef FORE200E_BSQ_DEBUG
|
|
unsigned long index; /* buffer # in queue */
|
|
int supplied; /* 'buffer supplied' flag */
|
|
#endif
|
|
} buffer_t;
|
|
|
|
|
|
#if (BITS_PER_LONG == 32)
|
|
#define FORE200E_BUF2HDL(buffer) ((u32)(buffer))
|
|
#define FORE200E_HDL2BUF(handle) ((struct buffer*)(handle))
|
|
#else /* deal with 64 bit pointers */
|
|
#define FORE200E_BUF2HDL(buffer) ((u32)((u64)(buffer)))
|
|
#define FORE200E_HDL2BUF(handle) ((struct buffer*)(((u64)(handle)) | PAGE_OFFSET))
|
|
#endif
|
|
|
|
|
|
/* host resident command queue */
|
|
|
|
typedef struct host_cmdq {
|
|
struct host_cmdq_entry host_entry[ QUEUE_SIZE_CMD ]; /* host resident cmd queue entries */
|
|
int head; /* head of cmd queue */
|
|
struct chunk status; /* array of completion status */
|
|
} host_cmdq_t;
|
|
|
|
|
|
/* host resident transmit queue */
|
|
|
|
typedef struct host_txq {
|
|
struct host_txq_entry host_entry[ QUEUE_SIZE_TX ]; /* host resident tx queue entries */
|
|
int head; /* head of tx queue */
|
|
int tail; /* tail of tx queue */
|
|
struct chunk tpd; /* array of tpds */
|
|
struct chunk status; /* arry of completion status */
|
|
int txing; /* number of pending PDUs in tx queue */
|
|
} host_txq_t;
|
|
|
|
|
|
/* host resident receive queue */
|
|
|
|
typedef struct host_rxq {
|
|
struct host_rxq_entry host_entry[ QUEUE_SIZE_RX ]; /* host resident rx queue entries */
|
|
int head; /* head of rx queue */
|
|
struct chunk rpd; /* array of rpds */
|
|
struct chunk status; /* array of completion status */
|
|
} host_rxq_t;
|
|
|
|
|
|
/* host resident buffer supply queues */
|
|
|
|
typedef struct host_bsq {
|
|
struct host_bsq_entry host_entry[ QUEUE_SIZE_BS ]; /* host resident buffer supply queue entries */
|
|
int head; /* head of buffer supply queue */
|
|
struct chunk rbd_block; /* array of rbds */
|
|
struct chunk status; /* array of completion status */
|
|
struct buffer* buffer; /* array of rx buffers */
|
|
struct buffer* freebuf; /* list of free rx buffers */
|
|
volatile int freebuf_count; /* count of free rx buffers */
|
|
} host_bsq_t;
|
|
|
|
|
|
/* header of the firmware image */
|
|
|
|
typedef struct fw_header {
|
|
__le32 magic; /* magic number */
|
|
__le32 version; /* firmware version id */
|
|
__le32 load_offset; /* fw load offset in board memory */
|
|
__le32 start_offset; /* fw execution start address in board memory */
|
|
} fw_header_t;
|
|
|
|
#define FW_HEADER_MAGIC 0x65726f66 /* 'fore' */
|
|
|
|
|
|
/* receive buffer supply queues scheme specification */
|
|
|
|
typedef struct bs_spec {
|
|
u32 queue_length; /* queue capacity */
|
|
u32 buffer_size; /* host buffer size */
|
|
u32 pool_size; /* number of rbds */
|
|
u32 supply_blksize; /* num of rbds in I/O block (multiple
|
|
of 4 between 4 and 124 inclusive) */
|
|
} bs_spec_t;
|
|
|
|
|
|
/* initialization command block (one-time command, not in cmd queue) */
|
|
|
|
typedef struct init_block {
|
|
enum opcode opcode; /* initialize command */
|
|
enum status status; /* related status word */
|
|
u32 receive_threshold; /* not used */
|
|
u32 num_connect; /* ATM connections */
|
|
u32 cmd_queue_len; /* length of command queue */
|
|
u32 tx_queue_len; /* length of transmit queue */
|
|
u32 rx_queue_len; /* length of receive queue */
|
|
u32 rsd_extension; /* number of extra 32 byte blocks */
|
|
u32 tsd_extension; /* number of extra 32 byte blocks */
|
|
u32 conless_vpvc; /* not used */
|
|
u32 pad[ 2 ]; /* force quad alignment */
|
|
struct bs_spec bs_spec[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues spec */
|
|
} init_block_t;
|
|
|
|
|
|
typedef enum media_type {
|
|
MEDIA_TYPE_CAT5_UTP = 0x06, /* unshielded twisted pair */
|
|
MEDIA_TYPE_MM_OC3_ST = 0x16, /* multimode fiber ST */
|
|
MEDIA_TYPE_MM_OC3_SC = 0x26, /* multimode fiber SC */
|
|
MEDIA_TYPE_SM_OC3_ST = 0x36, /* single-mode fiber ST */
|
|
MEDIA_TYPE_SM_OC3_SC = 0x46 /* single-mode fiber SC */
|
|
} media_type_t;
|
|
|
|
#define FORE200E_MEDIA_INDEX(media_type) ((media_type)>>4)
|
|
|
|
|
|
/* cp resident queues */
|
|
|
|
typedef struct cp_queues {
|
|
u32 cp_cmdq; /* command queue */
|
|
u32 cp_txq; /* transmit queue */
|
|
u32 cp_rxq; /* receive queue */
|
|
u32 cp_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues */
|
|
u32 imask; /* 1 enables cp to host interrupts */
|
|
u32 istat; /* 1 for interrupt posted */
|
|
u32 heap_base; /* offset form beginning of ram */
|
|
u32 heap_size; /* space available for queues */
|
|
u32 hlogger; /* non zero for host logging */
|
|
u32 heartbeat; /* cp heartbeat */
|
|
u32 fw_release; /* firmware version */
|
|
u32 mon960_release; /* i960 monitor version */
|
|
u32 tq_plen; /* transmit throughput measurements */
|
|
/* make sure the init block remains on a quad word boundary */
|
|
struct init_block init; /* one time cmd, not in cmd queue */
|
|
enum media_type media_type; /* media type id */
|
|
u32 oc3_revision; /* OC-3 revision number */
|
|
} cp_queues_t;
|
|
|
|
|
|
/* boot status */
|
|
|
|
typedef enum boot_status {
|
|
BSTAT_COLD_START = (u32) 0xc01dc01d, /* cold start */
|
|
BSTAT_SELFTEST_OK = (u32) 0x02201958, /* self-test ok */
|
|
BSTAT_SELFTEST_FAIL = (u32) 0xadbadbad, /* self-test failed */
|
|
BSTAT_CP_RUNNING = (u32) 0xce11feed, /* cp is running */
|
|
BSTAT_MON_TOO_BIG = (u32) 0x10aded00 /* i960 monitor is too big */
|
|
} boot_status_t;
|
|
|
|
|
|
/* software UART */
|
|
|
|
typedef struct soft_uart {
|
|
u32 send; /* write register */
|
|
u32 recv; /* read register */
|
|
} soft_uart_t;
|
|
|
|
#define FORE200E_CP_MONITOR_UART_FREE 0x00000000
|
|
#define FORE200E_CP_MONITOR_UART_AVAIL 0x01000000
|
|
|
|
|
|
/* i960 monitor */
|
|
|
|
typedef struct cp_monitor {
|
|
struct soft_uart soft_uart; /* software UART */
|
|
enum boot_status bstat; /* boot status */
|
|
u32 app_base; /* application base offset */
|
|
u32 mon_version; /* i960 monitor version */
|
|
} cp_monitor_t;
|
|
|
|
|
|
/* device state */
|
|
|
|
typedef enum fore200e_state {
|
|
FORE200E_STATE_BLANK, /* initial state */
|
|
FORE200E_STATE_REGISTER, /* device registered */
|
|
FORE200E_STATE_CONFIGURE, /* bus interface configured */
|
|
FORE200E_STATE_MAP, /* board space mapped in host memory */
|
|
FORE200E_STATE_RESET, /* board resetted */
|
|
FORE200E_STATE_START_FW, /* firmware started */
|
|
FORE200E_STATE_INITIALIZE, /* initialize command successful */
|
|
FORE200E_STATE_INIT_CMDQ, /* command queue initialized */
|
|
FORE200E_STATE_INIT_TXQ, /* transmit queue initialized */
|
|
FORE200E_STATE_INIT_RXQ, /* receive queue initialized */
|
|
FORE200E_STATE_INIT_BSQ, /* buffer supply queue initialized */
|
|
FORE200E_STATE_ALLOC_BUF, /* receive buffers allocated */
|
|
FORE200E_STATE_IRQ, /* host interrupt requested */
|
|
FORE200E_STATE_COMPLETE /* initialization completed */
|
|
} fore200e_state;
|
|
|
|
|
|
/* PCA-200E registers */
|
|
|
|
typedef struct fore200e_pca_regs {
|
|
volatile u32 __iomem * hcr; /* address of host control register */
|
|
volatile u32 __iomem * imr; /* address of host interrupt mask register */
|
|
volatile u32 __iomem * psr; /* address of PCI specific register */
|
|
} fore200e_pca_regs_t;
|
|
|
|
|
|
/* SBA-200E registers */
|
|
|
|
typedef struct fore200e_sba_regs {
|
|
u32 __iomem *hcr; /* address of host control register */
|
|
u32 __iomem *bsr; /* address of burst transfer size register */
|
|
u32 __iomem *isr; /* address of interrupt level selection register */
|
|
} fore200e_sba_regs_t;
|
|
|
|
|
|
/* model-specific registers */
|
|
|
|
typedef union fore200e_regs {
|
|
struct fore200e_pca_regs pca; /* PCA-200E registers */
|
|
struct fore200e_sba_regs sba; /* SBA-200E registers */
|
|
} fore200e_regs;
|
|
|
|
|
|
struct fore200e;
|
|
|
|
/* bus-dependent data */
|
|
|
|
typedef struct fore200e_bus {
|
|
char* model_name; /* board model name */
|
|
char* proc_name; /* board name under /proc/atm */
|
|
int descr_alignment; /* tpd/rpd/rbd DMA alignment requirement */
|
|
int buffer_alignment; /* rx buffers DMA alignment requirement */
|
|
int status_alignment; /* status words DMA alignment requirement */
|
|
u32 (*read)(volatile u32 __iomem *);
|
|
void (*write)(u32, volatile u32 __iomem *);
|
|
u32 (*dma_map)(struct fore200e*, void*, int, int);
|
|
void (*dma_unmap)(struct fore200e*, u32, int, int);
|
|
void (*dma_sync_for_cpu)(struct fore200e*, u32, int, int);
|
|
void (*dma_sync_for_device)(struct fore200e*, u32, int, int);
|
|
int (*dma_chunk_alloc)(struct fore200e*, struct chunk*, int, int, int);
|
|
void (*dma_chunk_free)(struct fore200e*, struct chunk*);
|
|
int (*configure)(struct fore200e*);
|
|
int (*map)(struct fore200e*);
|
|
void (*reset)(struct fore200e*);
|
|
int (*prom_read)(struct fore200e*, struct prom_data*);
|
|
void (*unmap)(struct fore200e*);
|
|
void (*irq_enable)(struct fore200e*);
|
|
int (*irq_check)(struct fore200e*);
|
|
void (*irq_ack)(struct fore200e*);
|
|
int (*proc_read)(struct fore200e*, char*);
|
|
} fore200e_bus_t;
|
|
|
|
/* vc mapping */
|
|
|
|
typedef struct fore200e_vc_map {
|
|
struct atm_vcc* vcc; /* vcc entry */
|
|
unsigned long incarn; /* vcc incarnation number */
|
|
} fore200e_vc_map_t;
|
|
|
|
#define FORE200E_VC_MAP(fore200e, vpi, vci) \
|
|
(& (fore200e)->vc_map[ ((vpi) << FORE200E_VCI_BITS) | (vci) ])
|
|
|
|
|
|
/* per-device data */
|
|
|
|
typedef struct fore200e {
|
|
struct list_head entry; /* next device */
|
|
const struct fore200e_bus* bus; /* bus-dependent code and data */
|
|
union fore200e_regs regs; /* bus-dependent registers */
|
|
struct atm_dev* atm_dev; /* ATM device */
|
|
|
|
enum fore200e_state state; /* device state */
|
|
|
|
char name[16]; /* device name */
|
|
void* bus_dev; /* bus-specific kernel data */
|
|
int irq; /* irq number */
|
|
unsigned long phys_base; /* physical base address */
|
|
void __iomem * virt_base; /* virtual base address */
|
|
|
|
unsigned char esi[ ESI_LEN ]; /* end system identifier */
|
|
|
|
struct cp_monitor __iomem * cp_monitor; /* i960 monitor address */
|
|
struct cp_queues __iomem * cp_queues; /* cp resident queues */
|
|
struct host_cmdq host_cmdq; /* host resident cmd queue */
|
|
struct host_txq host_txq; /* host resident tx queue */
|
|
struct host_rxq host_rxq; /* host resident rx queue */
|
|
/* host resident buffer supply queues */
|
|
struct host_bsq host_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ];
|
|
|
|
u32 available_cell_rate; /* remaining pseudo-CBR bw on link */
|
|
|
|
int loop_mode; /* S/UNI loopback mode */
|
|
|
|
struct stats* stats; /* last snapshot of the stats */
|
|
|
|
struct mutex rate_mtx; /* protects rate reservation ops */
|
|
spinlock_t q_lock; /* protects queue ops */
|
|
#ifdef FORE200E_USE_TASKLET
|
|
struct tasklet_struct tx_tasklet; /* performs tx interrupt work */
|
|
struct tasklet_struct rx_tasklet; /* performs rx interrupt work */
|
|
#endif
|
|
unsigned long tx_sat; /* tx queue saturation count */
|
|
|
|
unsigned long incarn_count;
|
|
struct fore200e_vc_map vc_map[ NBR_CONNECT ]; /* vc mapping */
|
|
} fore200e_t;
|
|
|
|
|
|
/* per-vcc data */
|
|
|
|
typedef struct fore200e_vcc {
|
|
enum buffer_scheme scheme; /* rx buffer scheme */
|
|
struct tpd_rate rate; /* tx rate control data */
|
|
int rx_min_pdu; /* size of smallest PDU received */
|
|
int rx_max_pdu; /* size of largest PDU received */
|
|
int tx_min_pdu; /* size of smallest PDU transmitted */
|
|
int tx_max_pdu; /* size of largest PDU transmitted */
|
|
unsigned long tx_pdu; /* nbr of tx pdus */
|
|
unsigned long rx_pdu; /* nbr of rx pdus */
|
|
} fore200e_vcc_t;
|
|
|
|
|
|
|
|
/* 200E-series common memory layout */
|
|
|
|
#define FORE200E_CP_MONITOR_OFFSET 0x00000400 /* i960 monitor interface */
|
|
#define FORE200E_CP_QUEUES_OFFSET 0x00004d40 /* cp resident queues */
|
|
|
|
|
|
/* PCA-200E memory layout */
|
|
|
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#define PCA200E_IOSPACE_LENGTH 0x00200000
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#define PCA200E_HCR_OFFSET 0x00100000 /* board control register */
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#define PCA200E_IMR_OFFSET 0x00100004 /* host IRQ mask register */
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#define PCA200E_PSR_OFFSET 0x00100008 /* PCI specific register */
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/* PCA-200E host control register */
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#define PCA200E_HCR_RESET (1<<0) /* read / write */
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#define PCA200E_HCR_HOLD_LOCK (1<<1) /* read / write */
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#define PCA200E_HCR_I960FAIL (1<<2) /* read */
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#define PCA200E_HCR_INTRB (1<<2) /* write */
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#define PCA200E_HCR_HOLD_ACK (1<<3) /* read */
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#define PCA200E_HCR_INTRA (1<<3) /* write */
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#define PCA200E_HCR_OUTFULL (1<<4) /* read */
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#define PCA200E_HCR_CLRINTR (1<<4) /* write */
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#define PCA200E_HCR_ESPHOLD (1<<5) /* read */
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#define PCA200E_HCR_INFULL (1<<6) /* read */
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#define PCA200E_HCR_TESTMODE (1<<7) /* read */
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/* PCA-200E PCI bus interface regs (offsets in PCI config space) */
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#define PCA200E_PCI_LATENCY 0x40 /* maximum slave latenty */
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#define PCA200E_PCI_MASTER_CTRL 0x41 /* master control */
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#define PCA200E_PCI_THRESHOLD 0x42 /* burst / continuous req threshold */
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/* PBI master control register */
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#define PCA200E_CTRL_DIS_CACHE_RD (1<<0) /* disable cache-line reads */
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#define PCA200E_CTRL_DIS_WRT_INVAL (1<<1) /* disable writes and invalidates */
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#define PCA200E_CTRL_2_CACHE_WRT_INVAL (1<<2) /* require 2 cache-lines for writes and invalidates */
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#define PCA200E_CTRL_IGN_LAT_TIMER (1<<3) /* ignore the latency timer */
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#define PCA200E_CTRL_ENA_CONT_REQ_MODE (1<<4) /* enable continuous request mode */
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#define PCA200E_CTRL_LARGE_PCI_BURSTS (1<<5) /* force large PCI bus bursts */
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#define PCA200E_CTRL_CONVERT_ENDIAN (1<<6) /* convert endianess of slave RAM accesses */
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#define SBA200E_PROM_NAME "FORE,sba-200e" /* device name in openprom tree */
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/* size of SBA-200E registers */
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#define SBA200E_HCR_LENGTH 4
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#define SBA200E_BSR_LENGTH 4
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#define SBA200E_ISR_LENGTH 4
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#define SBA200E_RAM_LENGTH 0x40000
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/* SBA-200E SBUS burst transfer size register */
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#define SBA200E_BSR_BURST4 0x04
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#define SBA200E_BSR_BURST8 0x08
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#define SBA200E_BSR_BURST16 0x10
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/* SBA-200E host control register */
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#define SBA200E_HCR_RESET (1<<0) /* read / write (sticky) */
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#define SBA200E_HCR_HOLD_LOCK (1<<1) /* read / write (sticky) */
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#define SBA200E_HCR_I960FAIL (1<<2) /* read */
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#define SBA200E_HCR_I960SETINTR (1<<2) /* write */
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#define SBA200E_HCR_OUTFULL (1<<3) /* read */
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#define SBA200E_HCR_INTR_CLR (1<<3) /* write */
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#define SBA200E_HCR_INTR_ENA (1<<4) /* read / write (sticky) */
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#define SBA200E_HCR_ESPHOLD (1<<5) /* read */
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#define SBA200E_HCR_INFULL (1<<6) /* read */
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#define SBA200E_HCR_TESTMODE (1<<7) /* read */
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#define SBA200E_HCR_INTR_REQ (1<<8) /* read */
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#define SBA200E_HCR_STICKY (SBA200E_HCR_RESET | SBA200E_HCR_HOLD_LOCK | SBA200E_HCR_INTR_ENA)
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#endif /* __KERNEL__ */
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#endif /* _FORE200E_H */
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