1 /*******************************************************************************
2 
3   Intel 10 Gigabit PCI Express Linux driver
4   Copyright(c) 1999 - 2013 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   Linux NICS <linux.nics@intel.com>
24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 
27 *******************************************************************************/
28 
29 #ifndef _DCB_82599_CONFIG_H_
30 #define _DCB_82599_CONFIG_H_
31 
32 /* DCB register definitions */
33 #define IXGBE_RTTDCS_TDPAC      0x00000001 /* 0 Round Robin,
34 					    * 1 WSP - Weighted Strict Priority
35 					    */
36 #define IXGBE_RTTDCS_VMPAC      0x00000002 /* 0 Round Robin,
37 					    * 1 WRR - Weighted Round Robin
38 					    */
39 #define IXGBE_RTTDCS_TDRM       0x00000010 /* Transmit Recycle Mode */
40 #define IXGBE_RTTDCS_ARBDIS     0x00000040 /* DCB arbiter disable */
41 #define IXGBE_RTTDCS_BDPM       0x00400000 /* Bypass Data Pipe - must clear! */
42 #define IXGBE_RTTDCS_BPBFSM     0x00800000 /* Bypass PB Free Space - must
43 					     * clear!
44 					     */
45 #define IXGBE_RTTDCS_SPEED_CHG  0x80000000 /* Link speed change */
46 
47 /* Receive UP2TC mapping */
48 #define IXGBE_RTRUP2TC_UP_SHIFT 3
49 #define IXGBE_RTRUP2TC_UP_MASK	7
50 /* Transmit UP2TC mapping */
51 #define IXGBE_RTTUP2TC_UP_SHIFT 3
52 
53 #define IXGBE_RTRPT4C_MCL_SHIFT 12 /* Offset to Max Credit Limit setting */
54 #define IXGBE_RTRPT4C_BWG_SHIFT 9  /* Offset to BWG index */
55 #define IXGBE_RTRPT4C_GSP       0x40000000 /* GSP enable bit */
56 #define IXGBE_RTRPT4C_LSP       0x80000000 /* LSP enable bit */
57 
58 #define IXGBE_RDRXCTL_MPBEN     0x00000010 /* DMA config for multiple packet
59 					    * buffers enable
60 					    */
61 #define IXGBE_RDRXCTL_MCEN      0x00000040 /* DMA config for multiple cores
62 					    * (RSS) enable
63 					    */
64 
65 /* RTRPCS Bit Masks */
66 #define IXGBE_RTRPCS_RRM        0x00000002 /* Receive Recycle Mode enable */
67 /* Receive Arbitration Control: 0 Round Robin, 1 DFP */
68 #define IXGBE_RTRPCS_RAC        0x00000004
69 #define IXGBE_RTRPCS_ARBDIS     0x00000040 /* Arbitration disable bit */
70 
71 /* RTTDT2C Bit Masks */
72 #define IXGBE_RTTDT2C_MCL_SHIFT 12
73 #define IXGBE_RTTDT2C_BWG_SHIFT 9
74 #define IXGBE_RTTDT2C_GSP       0x40000000
75 #define IXGBE_RTTDT2C_LSP       0x80000000
76 
77 #define IXGBE_RTTPT2C_MCL_SHIFT 12
78 #define IXGBE_RTTPT2C_BWG_SHIFT 9
79 #define IXGBE_RTTPT2C_GSP       0x40000000
80 #define IXGBE_RTTPT2C_LSP       0x80000000
81 
82 /* RTTPCS Bit Masks */
83 #define IXGBE_RTTPCS_TPPAC      0x00000020 /* 0 Round Robin,
84 					    * 1 SP - Strict Priority
85 					    */
86 #define IXGBE_RTTPCS_ARBDIS     0x00000040 /* Arbiter disable */
87 #define IXGBE_RTTPCS_TPRM       0x00000100 /* Transmit Recycle Mode enable */
88 #define IXGBE_RTTPCS_ARBD_SHIFT 22
89 #define IXGBE_RTTPCS_ARBD_DCB   0x4        /* Arbitration delay in DCB mode */
90 
91 /* SECTXMINIFG DCB */
92 #define IXGBE_SECTX_DCB		0x00001F00 /* DCB TX Buffer IFG */
93 
94 
95 /* DCB hardware-specific driver APIs */
96 
97 /* DCB PFC functions */
98 s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw, u8 pfc_en, u8 *prio_tc);
99 
100 /* DCB hw initialization */
101 s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw,
102 					u16 *refill,
103 					u16 *max,
104 					u8 *bwg_id,
105 					u8 *prio_type,
106 					u8 *prio_tc);
107 
108 s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw,
109 						u16 *refill,
110 						u16 *max,
111 						u8 *bwg_id,
112 						u8 *prio_type);
113 
114 s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw,
115 						u16 *refill,
116 						u16 *max,
117 						u8 *bwg_id,
118 						u8 *prio_type,
119 						u8 *prio_tc);
120 
121 s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
122 			      u16 *max, u8 *bwg_id, u8 *prio_type,
123 			      u8 *prio_tc);
124 
125 #endif /* _DCB_82599_CONFIG_H */
126