drivers/net/ethernet/freescale/fman/fman_sp.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later */
   2 /*
   3  * Copyright 2008 - 2015 Freescale Semiconductor Inc.
   4  */
   5
   6 #ifndef __FM_SP_H
   7 #define __FM_SP_H
   8
   9 #include "fman.h"
  10 #include <linux/types.h>
  11
  12 #define ILLEGAL_BASE    (~0)
  13
  14 /* defaults */
  15 #define DFLT_FM_SP_BUFFER_PREFIX_CONTEXT_DATA_ALIGN     64
  16
  17 /* Registers bit fields */
  18 #define FMAN_SP_EXT_BUF_POOL_EN_COUNTER         0x40000000
  19 #define FMAN_SP_EXT_BUF_POOL_VALID                      0x80000000
  20 #define FMAN_SP_EXT_BUF_POOL_BACKUP                     0x20000000
  21 #define FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE         0x00100000
  22 #define FMAN_SP_SG_DISABLE                              0x80000000
  23
  24 /* shifts */
  25 #define FMAN_SP_EXT_BUF_MARG_START_SHIFT                16
  26 #define FMAN_SP_DMA_ATTR_SWP_SHIFT                      30
  27 #define FMAN_SP_IC_TO_EXT_SHIFT                 16
  28 #define FMAN_SP_IC_FROM_INT_SHIFT                       8
  29
  30 /* structure for defining internal context copying */
  31 struct fman_sp_int_context_data_copy {
  32         /* < Offset in External buffer to which internal
  33          *  context is copied to (Rx) or taken from (Tx, Op).
  34          */
  35         u16 ext_buf_offset;
  36         /* Offset within internal context to copy from
  37          * (Rx) or to copy to (Tx, Op).
  38          */
  39         u8 int_context_offset;
  40         /* Internal offset size to be copied */
  41         u16 size;
  42 };
  43
  44 /*  struct for defining external buffer margins */
  45 struct fman_sp_buf_margins {
  46         /* Number of bytes to be left at the beginning
  47          * of the external buffer (must be divisible by 16)
  48          */
  49         u16 start_margins;
  50         /* number of bytes to be left at the end
  51          * of the external buffer(must be divisible by 16)
  52          */
  53         u16 end_margins;
  54 };
  55
  56 struct fman_sp_buffer_offsets {
  57         u32 data_offset;
  58         u32 prs_result_offset;
  59         u32 time_stamp_offset;
  60         u32 hash_result_offset;
  61 };
  62
  63 int fman_sp_build_buffer_struct(struct fman_sp_int_context_data_copy
  64                                 *int_context_data_copy,
  65                                 struct fman_buffer_prefix_content
  66                                 *buffer_prefix_content,
  67                                 struct fman_sp_buf_margins *buf_margins,
  68                                 struct fman_sp_buffer_offsets
  69                                 *buffer_offsets,
  70                                 u8 *internal_buf_offset);
  71
  72 void fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(struct fman_ext_pools
  73                                                      *fm_ext_pools,
  74                                                      u8 *ordered_array,
  75                                                      u16 *sizes_array);
  76
  77 #endif  /* __FM_SP_H */