ceph/src/dpdk/drivers/net/cxgbe/base/t4_chip_type.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2014-2015 Chelsio Communications.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Chelsio Communications nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef __T4_CHIP_TYPE_H__
  35 #define __T4_CHIP_TYPE_H__
  36
  37 /*
  38  * All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where:
  39  *
  40  *   V  = "4" for T4; "5" for T5, etc. or
  41  *   F  = "0" for PF 0..3; "4".."7" for PF4..7; and "8" for VFs
  42  *   PP = adapter product designation
  43  *
  44  * We use the "version" (V) of the adpater to code the Chip Version above.
  45  */
  46 #define CHELSIO_PCI_ID_VER(devid) ((devid) >> 12)
  47 #define CHELSIO_PCI_ID_FUNC(devid) (((devid) >> 8) & 0xf)
  48 #define CHELSIO_PCI_ID_PROD(devid) ((devid) & 0xff)
  49
  50 #define CHELSIO_T4 0x4
  51 #define CHELSIO_T5 0x5
  52
  53 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
  54 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
  55 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)
  56
  57 enum chip_type {
  58         T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
  59         T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
  60         T4_FIRST_REV    = T4_A1,
  61         T4_LAST_REV     = T4_A2,
  62
  63         T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
  64         T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
  65         T5_FIRST_REV    = T5_A0,
  66         T5_LAST_REV     = T5_A1,
  67 };
  68
  69 static inline int is_t4(enum chip_type chip)
  70 {
  71         return (CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4);
  72 }
  73
  74 static inline int is_t5(enum chip_type chip)
  75 {
  76         return (CHELSIO_CHIP_VERSION(chip) == CHELSIO_T5);
  77 }
  78
  79 #endif /* __T4_CHIP_TYPE_H__ */