1 /* 2 * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet 3 * driver for Linux. 4 * 5 * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 */ 35 36 #ifndef __T4VF_DEFS_H__ 37 #define __T4VF_DEFS_H__ 38 39 #include "../cxgb4/t4_regs.h" 40 41 /* 42 * The VF Register Map. 43 * 44 * The Scatter Gather Engine (SGE), Multiport Support module (MPS), PIO Local 45 * bus module (PL) and CPU Interface Module (CIM) components are mapped via 46 * the Slice to Module Map Table (see below) in the Physical Function Register 47 * Map. The Mail Box Data (MBDATA) range is mapped via the PCI-E Mailbox Base 48 * and Offset registers in the PF Register Map. The MBDATA base address is 49 * quite constrained as it determines the Mailbox Data addresses for both PFs 50 * and VFs, and therefore must fit in both the VF and PF Register Maps without 51 * overlapping other registers. 52 */ 53 #define T4VF_SGE_BASE_ADDR 0x0000 54 #define T4VF_MPS_BASE_ADDR 0x0100 55 #define T4VF_PL_BASE_ADDR 0x0200 56 #define T4VF_MBDATA_BASE_ADDR 0x0240 57 #define T4VF_CIM_BASE_ADDR 0x0300 58 59 #define T4VF_REGMAP_START 0x0000 60 #define T4VF_REGMAP_SIZE 0x0400 61 62 /* 63 * There's no hardware limitation which requires that the addresses of the 64 * Mailbox Data in the fixed CIM PF map and the programmable VF map must 65 * match. However, it's a useful convention ... 66 */ 67 #if T4VF_MBDATA_BASE_ADDR != CIM_PF_MAILBOX_DATA_A 68 #error T4VF_MBDATA_BASE_ADDR must match CIM_PF_MAILBOX_DATA_A! 69 #endif 70 71 /* 72 * Virtual Function "Slice to Module Map Table" definitions. 73 * 74 * This table allows us to map subsets of the various module register sets 75 * into the T4VF Register Map. Each table entry identifies the index of the 76 * module whose registers are being mapped, the offset within the module's 77 * register set that the mapping should start at, the limit of the mapping, 78 * and the offset within the T4VF Register Map to which the module's registers 79 * are being mapped. All addresses and qualtities are in terms of 32-bit 80 * words. The "limit" value is also in terms of 32-bit words and is equal to 81 * the last address mapped in the T4VF Register Map 1 (i.e. it's a "<=" 82 * relation rather than a "<"). 83 */ 84 #define T4VF_MOD_MAP(module, index, first, last) \ 85 T4VF_MOD_MAP_##module##_INDEX = (index), \ 86 T4VF_MOD_MAP_##module##_FIRST = (first), \ 87 T4VF_MOD_MAP_##module##_LAST = (last), \ 88 T4VF_MOD_MAP_##module##_OFFSET = ((first)/4), \ 89 T4VF_MOD_MAP_##module##_BASE = \ 90 (T4VF_##module##_BASE_ADDR/4 + (first)/4), \ 91 T4VF_MOD_MAP_##module##_LIMIT = \ 92 (T4VF_##module##_BASE_ADDR/4 + (last)/4), 93 94 #define SGE_VF_KDOORBELL 0x0 95 #define SGE_VF_GTS 0x4 96 #define MPS_VF_CTL 0x0 97 #define MPS_VF_STAT_RX_VF_ERR_FRAMES_H 0xfc 98 #define PL_VF_WHOAMI 0x0 99 #define CIM_VF_EXT_MAILBOX_CTRL 0x0 100 #define CIM_VF_EXT_MAILBOX_STATUS 0x4 101 102 enum { 103 T4VF_MOD_MAP(SGE, 2, SGE_VF_KDOORBELL, SGE_VF_GTS) 104 T4VF_MOD_MAP(MPS, 0, MPS_VF_CTL, MPS_VF_STAT_RX_VF_ERR_FRAMES_H) 105 T4VF_MOD_MAP(PL, 3, PL_VF_WHOAMI, PL_VF_WHOAMI) 106 T4VF_MOD_MAP(CIM, 1, CIM_VF_EXT_MAILBOX_CTRL, CIM_VF_EXT_MAILBOX_STATUS) 107 }; 108 109 /* 110 * There isn't a Slice to Module Map Table entry for the Mailbox Data 111 * registers, but it's convenient to use similar names as above. There are 8 112 * little-endian 64-bit Mailbox Data registers. Note that the "instances" 113 * value below is in terms of 32-bit words which matches the "word" addressing 114 * space we use above for the Slice to Module Map Space. 115 */ 116 #define NUM_CIM_VF_MAILBOX_DATA_INSTANCES 16 117 118 #define T4VF_MBDATA_FIRST 0 119 #define T4VF_MBDATA_LAST ((NUM_CIM_VF_MAILBOX_DATA_INSTANCES-1)*4) 120 121 #endif /* __T4T4VF_DEFS_H__ */ 122