xref: /dpdk/drivers/net/cxgbe/base/t4_hw.h (revision 745b88360817c1003a9f5282cf899f790440b189)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2014-2018 Chelsio Communications.
3  * All rights reserved.
4  */
5 
6 #ifndef __T4_HW_H
7 #define __T4_HW_H
8 
9 enum {
10 	NCHAN           = 4,     /* # of HW channels */
11 	EEPROMSIZE      = 17408, /* Serial EEPROM physical size */
12 	EEPROMVSIZE     = 32768, /* Serial EEPROM virtual address space size */
13 	EEPROMPFSIZE    = 1024,  /* EEPROM writable area size for PFn, n>0 */
14 	NMTUS           = 16,    /* size of MTU table */
15 	NCCTRL_WIN      = 32,    /* # of congestion control windows */
16 	MBOX_LEN        = 64,    /* mailbox size in bytes */
17 	UDBS_SEG_SIZE   = 128,   /* segment size for BAR2 user doorbells */
18 };
19 
20 enum {
21 	CIMLA_SIZE     = 2048,  /* # of 32-bit words in CIM LA */
22 };
23 
24 enum {
25 	SF_SEC_SIZE = 64 * 1024,      /* serial flash sector size */
26 };
27 
28 enum {
29 	SGE_NTIMERS = 6,          /* # of interrupt holdoff timer values */
30 	SGE_NCOUNTERS = 4,        /* # of interrupt packet counter values */
31 	SGE_FL_BUFFER_SIZE_NUM = 16, /* # of freelist buffser size regs */
32 };
33 
34 /* PCI-e memory window access */
35 enum pcie_memwin {
36 	MEMWIN_NIC      = 0,
37 };
38 
39 enum {
40 	SGE_MAX_WR_LEN = 512,     /* max WR size in bytes */
41 	SGE_EQ_IDXSIZE = 64,      /* egress queue pidx/cidx unit size */
42 	/* max no. of desc allowed in WR */
43 	SGE_MAX_WR_NDESC = SGE_MAX_WR_LEN / SGE_EQ_IDXSIZE,
44 };
45 
46 enum {
47 	TCB_SIZE        = 128,   /* TCB size */
48 };
49 
50 struct sge_qstat {                /* data written to SGE queue status entries */
51 	__be32 qid;
52 	__be16 cidx;
53 	__be16 pidx;
54 };
55 
56 /*
57  * Structure for last 128 bits of response descriptors
58  */
59 struct rsp_ctrl {
60 	__be32 hdrbuflen_pidx;
61 	__be32 pldbuflen_qid;
62 	union {
63 		u8 type_gen;
64 		__be64 last_flit;
65 	} u;
66 };
67 
68 #define S_RSPD_NEWBUF    31
69 #define V_RSPD_NEWBUF(x) ((x) << S_RSPD_NEWBUF)
70 #define F_RSPD_NEWBUF    V_RSPD_NEWBUF(1U)
71 
72 #define S_RSPD_LEN    0
73 #define M_RSPD_LEN    0x7fffffff
74 #define V_RSPD_LEN(x) ((x) << S_RSPD_LEN)
75 #define G_RSPD_LEN(x) (((x) >> S_RSPD_LEN) & M_RSPD_LEN)
76 
77 #define S_RSPD_GEN    7
78 #define V_RSPD_GEN(x) ((x) << S_RSPD_GEN)
79 #define F_RSPD_GEN    V_RSPD_GEN(1U)
80 
81 #define S_RSPD_TYPE    4
82 #define M_RSPD_TYPE    0x3
83 #define V_RSPD_TYPE(x) ((x) << S_RSPD_TYPE)
84 #define G_RSPD_TYPE(x) (((x) >> S_RSPD_TYPE) & M_RSPD_TYPE)
85 
86 /* Rx queue interrupt deferral field: timer index */
87 #define S_QINTR_CNT_EN    0
88 #define V_QINTR_CNT_EN(x) ((x) << S_QINTR_CNT_EN)
89 #define F_QINTR_CNT_EN    V_QINTR_CNT_EN(1U)
90 
91 #define S_QINTR_TIMER_IDX    1
92 #define M_QINTR_TIMER_IDX    0x7
93 #define V_QINTR_TIMER_IDX(x) ((x) << S_QINTR_TIMER_IDX)
94 #define G_QINTR_TIMER_IDX(x) (((x) >> S_QINTR_TIMER_IDX) & M_QINTR_TIMER_IDX)
95 
96 /*
97  * Flash layout.
98  */
99 #define FLASH_START(start)      ((start) * SF_SEC_SIZE)
100 #define FLASH_MAX_SIZE(nsecs)   ((nsecs) * SF_SEC_SIZE)
101 
102 enum {
103 	/*
104 	 * Various Expansion-ROM boot images, etc.
105 	 */
106 	FLASH_EXP_ROM_START_SEC = 0,
107 	FLASH_EXP_ROM_NSECS = 6,
108 	FLASH_EXP_ROM_START = FLASH_START(FLASH_EXP_ROM_START_SEC),
109 	FLASH_EXP_ROM_MAX_SIZE = FLASH_MAX_SIZE(FLASH_EXP_ROM_NSECS),
110 
111 	/*
112 	 * Location of firmware image in FLASH.
113 	 */
114 	FLASH_FW_START_SEC = 8,
115 	FLASH_FW_NSECS = 16,
116 	FLASH_FW_START = FLASH_START(FLASH_FW_START_SEC),
117 	FLASH_FW_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FW_NSECS),
118 
119 	/*
120 	 * Location of bootstrap firmware image in FLASH.
121 	 */
122 	FLASH_FWBOOTSTRAP_START_SEC = 27,
123 	FLASH_FWBOOTSTRAP_NSECS = 1,
124 	FLASH_FWBOOTSTRAP_START = FLASH_START(FLASH_FWBOOTSTRAP_START_SEC),
125 	FLASH_FWBOOTSTRAP_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FWBOOTSTRAP_NSECS),
126 
127 	/*
128 	 * Location of Firmware Configuration File in FLASH.
129 	 */
130 	FLASH_CFG_START_SEC = 31,
131 	FLASH_CFG_NSECS = 1,
132 	FLASH_CFG_START = FLASH_START(FLASH_CFG_START_SEC),
133 	FLASH_CFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_CFG_NSECS),
134 
135 	/*
136 	 * We don't support FLASH devices which can't support the full
137 	 * standard set of sections which we need for normal operations.
138 	 */
139 	FLASH_MIN_SIZE = FLASH_CFG_START + FLASH_CFG_MAX_SIZE,
140 };
141 
142 #undef FLASH_START
143 #undef FLASH_MAX_SIZE
144 
145 #endif /* __T4_HW_H */
146