drivers/crypto/qat/qat_common/adf_transport_access_macros.h

   1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */
   2 /* Copyright(c) 2014 - 2020 Intel Corporation */
   3 #ifndef ADF_TRANSPORT_ACCESS_MACROS_H
   4 #define ADF_TRANSPORT_ACCESS_MACROS_H
   5
   6 #include "adf_accel_devices.h"
   7 #define ADF_RING_CONFIG_NEAR_FULL_WM 0x0A
   8 #define ADF_RING_CONFIG_NEAR_EMPTY_WM 0x05
   9 #define ADF_COALESCING_MIN_TIME 0x1FF
  10 #define ADF_COALESCING_MAX_TIME 0xFFFFF
  11 #define ADF_COALESCING_DEF_TIME 0x27FF
  12 #define ADF_RING_NEAR_WATERMARK_512 0x08
  13 #define ADF_RING_NEAR_WATERMARK_0 0x00
  14 #define ADF_RING_EMPTY_SIG 0x7F7F7F7F
  15
  16 /* Valid internal ring size values */
  17 #define ADF_RING_SIZE_128 0x01
  18 #define ADF_RING_SIZE_256 0x02
  19 #define ADF_RING_SIZE_512 0x03
  20 #define ADF_RING_SIZE_4K 0x06
  21 #define ADF_RING_SIZE_16K 0x08
  22 #define ADF_RING_SIZE_4M 0x10
  23 #define ADF_MIN_RING_SIZE ADF_RING_SIZE_128
  24 #define ADF_MAX_RING_SIZE ADF_RING_SIZE_4M
  25 #define ADF_DEFAULT_RING_SIZE ADF_RING_SIZE_16K
  26
  27 /* Valid internal msg size values */
  28 #define ADF_MSG_SIZE_32 0x01
  29 #define ADF_MSG_SIZE_64 0x02
  30 #define ADF_MSG_SIZE_128 0x04
  31 #define ADF_MIN_MSG_SIZE ADF_MSG_SIZE_32
  32 #define ADF_MAX_MSG_SIZE ADF_MSG_SIZE_128
  33
  34 /* Size to bytes conversion macros for ring and msg size values */
  35 #define ADF_MSG_SIZE_TO_BYTES(SIZE) (SIZE << 5)
  36 #define ADF_BYTES_TO_MSG_SIZE(SIZE) (SIZE >> 5)
  37 #define ADF_SIZE_TO_RING_SIZE_IN_BYTES(SIZE) ((1 << (SIZE - 1)) << 7)
  38 #define ADF_RING_SIZE_IN_BYTES_TO_SIZE(SIZE) ((1 << (SIZE - 1)) >> 7)
  39
  40 /* Minimum ring bufer size for memory allocation */
  41 #define ADF_RING_SIZE_BYTES_MIN(SIZE) \
  42         ((SIZE < ADF_SIZE_TO_RING_SIZE_IN_BYTES(ADF_RING_SIZE_4K)) ? \
  43                 ADF_SIZE_TO_RING_SIZE_IN_BYTES(ADF_RING_SIZE_4K) : SIZE)
  44 #define ADF_RING_SIZE_MODULO(SIZE) (SIZE + 0x6)
  45 #define ADF_SIZE_TO_POW(SIZE) ((((SIZE & 0x4) >> 1) | ((SIZE & 0x4) >> 2) | \
  46                                 SIZE) & ~0x4)
  47 /* Max outstanding requests */
  48 #define ADF_MAX_INFLIGHTS(RING_SIZE, MSG_SIZE) \
  49         ((((1 << (RING_SIZE - 1)) << 3) >> ADF_SIZE_TO_POW(MSG_SIZE)) - 1)
  50 #define BUILD_RING_CONFIG(size) \
  51         ((ADF_RING_NEAR_WATERMARK_0 << ADF_RING_CONFIG_NEAR_FULL_WM) \
  52         | (ADF_RING_NEAR_WATERMARK_0 << ADF_RING_CONFIG_NEAR_EMPTY_WM) \
  53         | size)
  54 #define BUILD_RESP_RING_CONFIG(size, watermark_nf, watermark_ne) \
  55         ((watermark_nf << ADF_RING_CONFIG_NEAR_FULL_WM) \
  56         | (watermark_ne << ADF_RING_CONFIG_NEAR_EMPTY_WM) \
  57         | size)
  58 #endif