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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 */
102s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw,
103                               struct ixgbe_dcb_config *dcb_config);
104s32 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 */
109s32 ixgbe_dcb_config_tc_stats_82599(struct ixgbe_hw *hw);
110s32 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 */
115s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw,
116                                           struct ixgbe_dcb_config *dcb_config);
117s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw,
118                                           struct ixgbe_dcb_config *dcb_config);
119s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw,
120                                      struct ixgbe_dcb_config *dcb_config);
121
122
123/* DCB hw initialization */
124s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw,
125                              struct ixgbe_dcb_config *config);
126
127#endif /* _DCB_82599_CONFIG_H */
128