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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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09ae5d37e0
Add statistics for compression/decompression hardware offload under debugfs. Signed-off-by: Mahipal Challa <Mahipal.Challa@cavium.com> Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
122 lines
3.9 KiB
C
122 lines
3.9 KiB
C
/***********************license start************************************
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* Copyright (c) 2003-2017 Cavium, Inc.
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* All rights reserved.
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*
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* License: one of 'Cavium License' or 'GNU General Public License Version 2'
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*
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* This file is provided under the terms of the Cavium License (see below)
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* or under the terms of GNU General Public License, Version 2, as
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* published by the Free Software Foundation. When using or redistributing
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* this file, you may do so under either license.
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*
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* Cavium License: Redistribution and use in source and binary forms, with
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* or without modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Cavium Inc. nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* This Software, including technical data, may be subject to U.S. export
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* control laws, including the U.S. Export Administration Act and its
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* associated regulations, and may be subject to export or import
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* regulations in other countries.
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*
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
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* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
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* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
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* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
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* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
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* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
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* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
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* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
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* WITH YOU.
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***********************license end**************************************/
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#ifndef __ZIP_MAIN_H__
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#define __ZIP_MAIN_H__
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#include "zip_device.h"
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#include "zip_regs.h"
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/* PCI device IDs */
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#define PCI_DEVICE_ID_THUNDERX_ZIP 0xA01A
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/* ZIP device BARs */
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#define PCI_CFG_ZIP_PF_BAR0 0 /* Base addr for normal regs */
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/* Maximum available zip queues */
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#define ZIP_MAX_NUM_QUEUES 8
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#define ZIP_128B_ALIGN 7
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/* Command queue buffer size */
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#define ZIP_CMD_QBUF_SIZE (8064 + 8)
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struct zip_registers {
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char *reg_name;
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u64 reg_offset;
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};
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/* ZIP Compression - Decompression stats */
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struct zip_stats {
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atomic64_t comp_req_submit;
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atomic64_t comp_req_complete;
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atomic64_t decomp_req_submit;
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atomic64_t decomp_req_complete;
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atomic64_t pending_req;
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atomic64_t comp_in_bytes;
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atomic64_t comp_out_bytes;
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atomic64_t decomp_in_bytes;
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atomic64_t decomp_out_bytes;
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atomic64_t decomp_bad_reqs;
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};
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/* ZIP Instruction Queue */
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struct zip_iq {
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u64 *sw_head;
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u64 *sw_tail;
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u64 *hw_tail;
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u64 done_cnt;
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u64 pend_cnt;
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u64 free_flag;
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/* ZIP IQ lock */
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spinlock_t lock;
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};
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/* ZIP Device */
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struct zip_device {
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u32 index;
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void __iomem *reg_base;
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struct pci_dev *pdev;
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/* Different ZIP Constants */
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u64 depth;
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u64 onfsize;
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u64 ctxsize;
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struct zip_iq iq[ZIP_MAX_NUM_QUEUES];
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struct zip_stats stats;
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};
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/* Prototypes */
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struct zip_device *zip_get_device(int node_id);
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int zip_get_node_id(void);
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void zip_reg_write(u64 val, u64 __iomem *addr);
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u64 zip_reg_read(u64 __iomem *addr);
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void zip_update_cmd_bufs(struct zip_device *zip_dev, u32 queue);
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u32 zip_load_instr(union zip_inst_s *instr, struct zip_device *zip_dev);
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#endif /* ZIP_MAIN_H */
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