Release 4.7 drivers/net/ethernet/chelsio/cxgb4vf/t4vf_defs.h
/*
* This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
* driver for Linux.
*
* Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __T4VF_DEFS_H__
#define __T4VF_DEFS_H__
#include "../cxgb4/t4_regs.h"
/*
* The VF Register Map.
*
* The Scatter Gather Engine (SGE), Multiport Support module (MPS), PIO Local
* bus module (PL) and CPU Interface Module (CIM) components are mapped via
* the Slice to Module Map Table (see below) in the Physical Function Register
* Map. The Mail Box Data (MBDATA) range is mapped via the PCI-E Mailbox Base
* and Offset registers in the PF Register Map. The MBDATA base address is
* quite constrained as it determines the Mailbox Data addresses for both PFs
* and VFs, and therefore must fit in both the VF and PF Register Maps without
* overlapping other registers.
*/
#define T4VF_SGE_BASE_ADDR 0x0000
#define T4VF_MPS_BASE_ADDR 0x0100
#define T4VF_PL_BASE_ADDR 0x0200
#define T4VF_MBDATA_BASE_ADDR 0x0240
#define T6VF_MBDATA_BASE_ADDR 0x0280
#define T4VF_CIM_BASE_ADDR 0x0300
#define T4VF_REGMAP_START 0x0000
#define T4VF_REGMAP_SIZE 0x0400
/*
* There's no hardware limitation which requires that the addresses of the
* Mailbox Data in the fixed CIM PF map and the programmable VF map must
* match. However, it's a useful convention ...
*/
#if T4VF_MBDATA_BASE_ADDR != CIM_PF_MAILBOX_DATA_A
#error T4VF_MBDATA_BASE_ADDR must match CIM_PF_MAILBOX_DATA_A!
#endif
/*
* Virtual Function "Slice to Module Map Table" definitions.
*
* This table allows us to map subsets of the various module register sets
* into the T4VF Register Map. Each table entry identifies the index of the
* module whose registers are being mapped, the offset within the module's
* register set that the mapping should start at, the limit of the mapping,
* and the offset within the T4VF Register Map to which the module's registers
* are being mapped. All addresses and qualtities are in terms of 32-bit
* words. The "limit" value is also in terms of 32-bit words and is equal to
* the last address mapped in the T4VF Register Map 1 (i.e. it's a "<="
* relation rather than a "<").
*/
#define T4VF_MOD_MAP(module, index, first, last) \
T4VF_MOD_MAP_##module##_INDEX = (index), \
T4VF_MOD_MAP_##module##_FIRST = (first), \
T4VF_MOD_MAP_##module##_LAST = (last), \
T4VF_MOD_MAP_##module##_OFFSET = ((first)/4), \
T4VF_MOD_MAP_##module##_BASE = \
(T4VF_##module##_BASE_ADDR/4 + (first)/4), \
T4VF_MOD_MAP_##module##_LIMIT = \
(T4VF_##module##_BASE_ADDR/4 + (last)/4),
#define SGE_VF_KDOORBELL 0x0
#define SGE_VF_GTS 0x4
#define MPS_VF_CTL 0x0
#define MPS_VF_STAT_RX_VF_ERR_FRAMES_H 0xfc
#define PL_VF_WHOAMI 0x0
#define CIM_VF_EXT_MAILBOX_CTRL 0x0
#define CIM_VF_EXT_MAILBOX_STATUS 0x4
enum {
T4VF_MOD_MAP(SGE, 2, SGE_VF_KDOORBELL, SGE_VF_GTS)
T4VF_MOD_MAP(MPS, 0, MPS_VF_CTL, MPS_VF_STAT_RX_VF_ERR_FRAMES_H)
T4VF_MOD_MAP(PL, 3, PL_VF_WHOAMI, PL_VF_WHOAMI)
T4VF_MOD_MAP(CIM, 1, CIM_VF_EXT_MAILBOX_CTRL, CIM_VF_EXT_MAILBOX_STATUS)
};
/*
* There isn't a Slice to Module Map Table entry for the Mailbox Data
* registers, but it's convenient to use similar names as above. There are 8
* little-endian 64-bit Mailbox Data registers. Note that the "instances"
* value below is in terms of 32-bit words which matches the "word" addressing
* space we use above for the Slice to Module Map Space.
*/
#define NUM_CIM_VF_MAILBOX_DATA_INSTANCES 16
#define T4VF_MBDATA_FIRST 0
#define T4VF_MBDATA_LAST ((NUM_CIM_VF_MAILBOX_DATA_INSTANCES-1)*4)
#endif /* __T4T4VF_DEFS_H__ */
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