drivers/net/ixgbe/ixgbe_dcb_82599.h

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2010 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 #ifndef _DCB_82599_CONFIG_H_
  29 #define _DCB_82599_CONFIG_H_
  30
  31 /* DCB register definitions */
  32 #define IXGBE_RTTDCS_TDPAC      0x00000001 /* 0 Round Robin,
  33                                             * 1 WSP - Weighted Strict Priority
  34                                             */
  35 #define IXGBE_RTTDCS_VMPAC      0x00000002 /* 0 Round Robin,
  36                                             * 1 WRR - Weighted Round Robin
  37                                             */
  38 #define IXGBE_RTTDCS_TDRM       0x00000010 /* Transmit Recycle Mode */
  39 #define IXGBE_RTTDCS_ARBDIS     0x00000040 /* DCB arbiter disable */
  40 #define IXGBE_RTTDCS_BDPM       0x00400000 /* Bypass Data Pipe - must clear! */
  41 #define IXGBE_RTTDCS_BPBFSM     0x00800000 /* Bypass PB Free Space - must
  42                                              * clear!
  43                                              */
  44 #define IXGBE_RTTDCS_SPEED_CHG  0x80000000 /* Link speed change */
  45
  46 /* Receive UP2TC mapping */
  47 #define IXGBE_RTRUP2TC_UP_SHIFT 3
  48 /* Transmit UP2TC mapping */
  49 #define IXGBE_RTTUP2TC_UP_SHIFT 3
  50
  51 #define IXGBE_RTRPT4C_MCL_SHIFT 12 /* Offset to Max Credit Limit setting */
  52 #define IXGBE_RTRPT4C_BWG_SHIFT 9  /* Offset to BWG index */
  53 #define IXGBE_RTRPT4C_GSP       0x40000000 /* GSP enable bit */
  54 #define IXGBE_RTRPT4C_LSP       0x80000000 /* LSP enable bit */
  55
  56 #define IXGBE_RDRXCTL_MPBEN     0x00000010 /* DMA config for multiple packet
  57                                             * buffers enable
  58                                             */
  59 #define IXGBE_RDRXCTL_MCEN      0x00000040 /* DMA config for multiple cores
  60                                             * (RSS) enable
  61                                             */
  62
  63 /* RTRPCS Bit Masks */
  64 #define IXGBE_RTRPCS_RRM        0x00000002 /* Receive Recycle Mode enable */
  65 /* Receive Arbitration Control: 0 Round Robin, 1 DFP */
  66 #define IXGBE_RTRPCS_RAC        0x00000004
  67 #define IXGBE_RTRPCS_ARBDIS     0x00000040 /* Arbitration disable bit */
  68
  69 /* RTTDT2C Bit Masks */
  70 #define IXGBE_RTTDT2C_MCL_SHIFT 12
  71 #define IXGBE_RTTDT2C_BWG_SHIFT 9
  72 #define IXGBE_RTTDT2C_GSP       0x40000000
  73 #define IXGBE_RTTDT2C_LSP       0x80000000
  74
  75 #define IXGBE_RTTPT2C_MCL_SHIFT 12
  76 #define IXGBE_RTTPT2C_BWG_SHIFT 9
  77 #define IXGBE_RTTPT2C_GSP       0x40000000
  78 #define IXGBE_RTTPT2C_LSP       0x80000000
  79
  80 /* RTTPCS Bit Masks */
  81 #define IXGBE_RTTPCS_TPPAC      0x00000020 /* 0 Round Robin,
  82                                             * 1 SP - Strict Priority
  83                                             */
  84 #define IXGBE_RTTPCS_ARBDIS     0x00000040 /* Arbiter disable */
  85 #define IXGBE_RTTPCS_TPRM       0x00000100 /* Transmit Recycle Mode enable */
  86 #define IXGBE_RTTPCS_ARBD_SHIFT 22
  87 #define IXGBE_RTTPCS_ARBD_DCB   0x4        /* Arbitration delay in DCB mode */
  88
  89 #define IXGBE_TXPBSIZE_20KB     0x00005000 /* 20KB Packet Buffer */
  90 #define IXGBE_TXPBSIZE_40KB     0x0000A000 /* 40KB Packet Buffer */
  91 #define IXGBE_RXPBSIZE_48KB     0x0000C000 /* 48KB Packet Buffer */
  92 #define IXGBE_RXPBSIZE_64KB     0x00010000 /* 64KB Packet Buffer */
  93 #define IXGBE_RXPBSIZE_80KB     0x00014000 /* 80KB Packet Buffer */
  94 #define IXGBE_RXPBSIZE_128KB    0x00020000 /* 128KB Packet Buffer */
  95
  96 #define IXGBE_TXPBTHRESH_DCB    0xA        /* THRESH value for DCB mode */
  97
  98
  99 /* DCB hardware-specific driver APIs */
 100
 101 /* DCB PFC functions */
 102 s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw,
 103                                struct ixgbe_dcb_config *dcb_config);
 104 s32 ixgbe_dcb_get_pfc_stats_82599(struct ixgbe_hw *hw,
 105                                   struct ixgbe_hw_stats *stats,
 106                                   u8 tc_count);
 107
 108 /* DCB traffic class stats */
 109 s32 ixgbe_dcb_config_tc_stats_82599(struct ixgbe_hw *hw);
 110 s32 ixgbe_dcb_get_tc_stats_82599(struct ixgbe_hw *hw,
 111                                  struct ixgbe_hw_stats *stats,
 112                                  u8 tc_count);
 113
 114 /* DCB config arbiters */
 115 s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw,
 116                                            struct ixgbe_dcb_config *dcb_config);
 117 s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw,
 118                                            struct ixgbe_dcb_config *dcb_config);
 119 s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw,
 120                                       struct ixgbe_dcb_config *dcb_config);
 121
 122
 123 /* DCB hw initialization */
 124 s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw,
 125                               struct ixgbe_dcb_config *config);
 126
 127 #endif /* _DCB_82599_CONFIG_H */