[deliverable/linux.git] / drivers / net / ethernet / chelsio / cxgb4 / t4_values.h

/*
 * This file is part of the Chelsio T4 Ethernet driver for Linux.
 *
 * Copyright (c) 2003-2014 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 __T4_VALUES_H__
#define __T4_VALUES_H__

/* This file contains definitions for various T4 register value hardware
 * constants.  The types of values encoded here are predominantly those for
 * register fields which control "modal" behavior.  For the most part, we do
 * not include definitions for register fields which are simple numeric
 * metrics, etc.
 */

/* SGE register field values.
 */

/* CONTROL1 register */
#define RXPKTCPLMODE_SPLIT_X		1

#define INGPCIEBOUNDARY_SHIFT_X		5
#define INGPCIEBOUNDARY_32B_X		0

#define INGPADBOUNDARY_SHIFT_X		5

/* CONTROL2 register */
#define INGPACKBOUNDARY_SHIFT_X		5
#define INGPACKBOUNDARY_16B_X		0

/* GTS register */
#define SGE_TIMERREGS			6

/* T5 and later support a new BAR2-based doorbell mechanism for Egress Queues.
 * The User Doorbells are each 128 bytes in length with a Simple Doorbell at
 * offsets 8x and a Write Combining single 64-byte Egress Queue Unit
 * (IDXSIZE_UNIT_X) Gather Buffer interface at offset 64.  For Ingress Queues,
 * we have a Going To Sleep register at offsets 8x+4.
 *
 * As noted above, we have many instances of the Simple Doorbell and Going To
 * Sleep registers at offsets 8x and 8x+4, respectively.  We want to use a
 * non-64-byte aligned offset for the Simple Doorbell in order to attempt to
 * avoid buffering of the writes to the Simple Doorbell and we want to use a
 * non-contiguous offset for the Going To Sleep writes in order to avoid
 * possible combining between them.
 */
#define SGE_UDB_SIZE		128
#define SGE_UDB_KDOORBELL	8
#define SGE_UDB_GTS		20
#define SGE_UDB_WCDOORBELL	64

/* PCI-E definitions */
#define WINDOW_SHIFT_X		10
#define PCIEOFST_SHIFT_X	10

/* TP_VLAN_PRI_MAP controls which subset of fields will be present in the
 * Compressed Filter Tuple for LE filters.  Each bit set in TP_VLAN_PRI_MAP
 * selects for a particular field being present.  These fields, when present
 * in the Compressed Filter Tuple, have the following widths in bits.
 */
#define FT_FCOE_W                       1
#define FT_PORT_W                       3
#define FT_VNIC_ID_W                    17
#define FT_VLAN_W                       17
#define FT_TOS_W                        8
#define FT_PROTOCOL_W                   8
#define FT_ETHERTYPE_W                  16
#define FT_MACMATCH_W                   9
#define FT_MPSHITTYPE_W                 3
#define FT_FRAGMENTATION_W              1

/* Some of the Compressed Filter Tuple fields have internal structure.  These
 * bit shifts/masks describe those structures.  All shifts are relative to the
 * base position of the fields within the Compressed Filter Tuple
 */
#define FT_VLAN_VLD_S                   16
#define FT_VLAN_VLD_V(x)                ((x) << FT_VLAN_VLD_S)
#define FT_VLAN_VLD_F                   FT_VLAN_VLD_V(1U)

#define FT_VNID_ID_VF_S                 0
#define FT_VNID_ID_VF_V(x)              ((x) << FT_VNID_ID_VF_S)

#define FT_VNID_ID_PF_S                 7
#define FT_VNID_ID_PF_V(x)              ((x) << FT_VNID_ID_PF_S)

#define FT_VNID_ID_VLD_S                16
#define FT_VNID_ID_VLD_V(x)             ((x) << FT_VNID_ID_VLD_S)

#endif /* __T4_VALUES_H__ */
Commit	Line	Data
f612b815 HS	1	/*
	2	* This file is part of the Chelsio T4 Ethernet driver for Linux.
	3	*
	4	* Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
	5	*
	6	* This software is available to you under a choice of one of two
	7	* licenses. You may choose to be licensed under the terms of the GNU
	8	* General Public License (GPL) Version 2, available from the file
	9	* COPYING in the main directory of this source tree, or the
	10	* OpenIB.org BSD license below:
	11	*
	12	* Redistribution and use in source and binary forms, with or
	13	* without modification, are permitted provided that the following
	14	* conditions are met:
	15	*
	16	* - Redistributions of source code must retain the above
	17	* copyright notice, this list of conditions and the following
	18	* disclaimer.
	19	*
	20	* - Redistributions in binary form must reproduce the above
	21	* copyright notice, this list of conditions and the following
	22	* disclaimer in the documentation and/or other materials
	23	* provided with the distribution.
	24	*
	25	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	26	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	27	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	28	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	29	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	30	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	31	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	32	* SOFTWARE.
	33	*/
	34
	35	#ifndef __T4_VALUES_H__
	36	#define __T4_VALUES_H__
	37
	38	/* This file contains definitions for various T4 register value hardware
	39	* constants. The types of values encoded here are predominantly those for
	40	* register fields which control "modal" behavior. For the most part, we do
	41	* not include definitions for register fields which are simple numeric
	42	* metrics, etc.
	43	*/
	44
	45	/* SGE register field values.
	46	*/
	47
	48	/* CONTROL1 register */
	49	#define RXPKTCPLMODE_SPLIT_X 1
	50
	51	#define INGPCIEBOUNDARY_SHIFT_X 5
	52	#define INGPCIEBOUNDARY_32B_X 0
	53
	54	#define INGPADBOUNDARY_SHIFT_X 5
	55
	56	/* CONTROL2 register */
	57	#define INGPACKBOUNDARY_SHIFT_X 5
	58	#define INGPACKBOUNDARY_16B_X 0
	59
	60	/* GTS register */
	61	#define SGE_TIMERREGS 6
	62
	63	/* T5 and later support a new BAR2-based doorbell mechanism for Egress Queues.
	64	* The User Doorbells are each 128 bytes in length with a Simple Doorbell at
65	* offsets 8x and a Write Combining single 64-byte Egress Queue Unit
66	* (IDXSIZE_UNIT_X) Gather Buffer interface at offset 64. For Ingress Queues,
67	* we have a Going To Sleep register at offsets 8x+4.
68	*
69	* As noted above, we have many instances of the Simple Doorbell and Going To
70	* Sleep registers at offsets 8x and 8x+4, respectively. We want to use a
71	* non-64-byte aligned offset for the Simple Doorbell in order to attempt to
72	* avoid buffering of the writes to the Simple Doorbell and we want to use a
73	* non-contiguous offset for the Going To Sleep writes in order to avoid
74	* possible combining between them.
75	*/
76	#define SGE_UDB_SIZE 128
77	#define SGE_UDB_KDOORBELL 8
78	#define SGE_UDB_GTS 20
79	#define SGE_UDB_WCDOORBELL 64
80
f061de42 HS	81	/* PCI-E definitions */
	82	#define WINDOW_SHIFT_X 10
	83	#define PCIEOFST_SHIFT_X 10
	84
0d804338 HS	85	/* TP_VLAN_PRI_MAP controls which subset of fields will be present in the
	86	* Compressed Filter Tuple for LE filters. Each bit set in TP_VLAN_PRI_MAP
	87	* selects for a particular field being present. These fields, when present
	88	* in the Compressed Filter Tuple, have the following widths in bits.
	89	*/
	90	#define FT_FCOE_W 1
	91	#define FT_PORT_W 3
	92	#define FT_VNIC_ID_W 17
	93	#define FT_VLAN_W 17
	94	#define FT_TOS_W 8
	95	#define FT_PROTOCOL_W 8
	96	#define FT_ETHERTYPE_W 16
	97	#define FT_MACMATCH_W 9
	98	#define FT_MPSHITTYPE_W 3
	99	#define FT_FRAGMENTATION_W 1
	100
	101	/* Some of the Compressed Filter Tuple fields have internal structure. These
	102	* bit shifts/masks describe those structures. All shifts are relative to the
	103	* base position of the fields within the Compressed Filter Tuple
	104	*/
	105	#define FT_VLAN_VLD_S 16
	106	#define FT_VLAN_VLD_V(x) ((x) << FT_VLAN_VLD_S)
	107	#define FT_VLAN_VLD_F FT_VLAN_VLD_V(1U)
	108
	109	#define FT_VNID_ID_VF_S 0
	110	#define FT_VNID_ID_VF_V(x) ((x) << FT_VNID_ID_VF_S)
	111
	112	#define FT_VNID_ID_PF_S 7
	113	#define FT_VNID_ID_PF_V(x) ((x) << FT_VNID_ID_PF_S)
	114
	115	#define FT_VNID_ID_VLD_S 16
	116	#define FT_VNID_ID_VLD_V(x) ((x) << FT_VNID_ID_VLD_S)
	117
f612b815	118	#endif /* __T4_VALUES_H__ */