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authorVladislav Zolotarov <vladz@broadcom.com>2010-12-13 00:44:18 -0500
committerDavid S. Miller <davem@davemloft.net>2010-12-16 16:15:55 -0500
commite4901dde12d92b70dd13fa8b3bbc9df7a6129aab (patch)
treeda436a7a43cf5f212485cc9691592d90e01478db /drivers/net/bnx2x/bnx2x_dcb.h
parent8307fa3e86a83924dd7f8310ce1e051f34986fe8 (diff)
bnx2x: add DCB support
Adding DCB initialization and handling on 57712 FW/HW Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Shmulik Ravid-Rabinovitz <shmulikr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2x/bnx2x_dcb.h')
-rw-r--r--drivers/net/bnx2x/bnx2x_dcb.h193
1 files changed, 193 insertions, 0 deletions
diff --git a/drivers/net/bnx2x/bnx2x_dcb.h b/drivers/net/bnx2x/bnx2x_dcb.h
new file mode 100644
index 000000000000..8dea56b511f5
--- /dev/null
+++ b/drivers/net/bnx2x/bnx2x_dcb.h
@@ -0,0 +1,193 @@
1/* bnx2x_dcb.h: Broadcom Everest network driver.
2 *
3 * Copyright 2009-2010 Broadcom Corporation
4 *
5 * Unless you and Broadcom execute a separate written software license
6 * agreement governing use of this software, this software is licensed to you
7 * under the terms of the GNU General Public License version 2, available
8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
9 *
10 * Notwithstanding the above, under no circumstances may you combine this
11 * software in any way with any other Broadcom software provided under a
12 * license other than the GPL, without Broadcom's express prior written
13 * consent.
14 *
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Dmitry Kravkov
17 *
18 */
19#ifndef BNX2X_DCB_H
20#define BNX2X_DCB_H
21
22#include "bnx2x_hsi.h"
23
24#define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */
25struct bnx2x_dcbx_app_params {
26 u32 enabled;
27 u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
28};
29
30#define E2_NUM_OF_COS 2
31#define BNX2X_DCBX_COS_NOT_STRICT 0
32#define BNX2X_DCBX_COS_LOW_STRICT 1
33#define BNX2X_DCBX_COS_HIGH_STRICT 2
34
35struct bnx2x_dcbx_cos_params {
36 u32 bw_tbl;
37 u32 pri_bitmask;
38 u8 strict;
39 u8 pauseable;
40};
41
42struct bnx2x_dcbx_pg_params {
43 u32 enabled;
44 u8 num_of_cos; /* valid COS entries */
45 struct bnx2x_dcbx_cos_params cos_params[E2_NUM_OF_COS];
46};
47
48struct bnx2x_dcbx_pfc_params {
49 u32 enabled;
50 u32 priority_non_pauseable_mask;
51};
52
53struct bnx2x_dcbx_port_params {
54 u32 dcbx_enabled;
55 struct bnx2x_dcbx_pfc_params pfc;
56 struct bnx2x_dcbx_pg_params ets;
57 struct bnx2x_dcbx_app_params app;
58};
59
60#define BNX2X_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF)
61#define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE 0
62#define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE 1
63#define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID (BNX2X_DCBX_CONFIG_INV_VALUE)
64
65/*******************************************************************************
66 * LLDP protocol configuration parameters.
67 ******************************************************************************/
68struct bnx2x_config_lldp_params {
69 u32 overwrite_settings;
70 u32 msg_tx_hold;
71 u32 msg_fast_tx;
72 u32 tx_credit_max;
73 u32 msg_tx_interval;
74 u32 tx_fast;
75};
76
77struct bnx2x_admin_priority_app_table {
78 u32 valid;
79 u32 priority;
80#define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF)
81 u32 traffic_type;
82#define TRAFFIC_TYPE_ETH 0
83#define TRAFFIC_TYPE_PORT 1
84 u32 app_id;
85};
86
87/*******************************************************************************
88 * DCBX protocol configuration parameters.
89 ******************************************************************************/
90struct bnx2x_config_dcbx_params {
91 u32 dcb_enable;
92 u32 admin_dcbx_enable;
93 u32 overwrite_settings;
94 u32 admin_dcbx_version;
95 u32 admin_ets_enable;
96 u32 admin_pfc_enable;
97 u32 admin_tc_supported_tx_enable;
98 u32 admin_ets_configuration_tx_enable;
99 u32 admin_ets_recommendation_tx_enable;
100 u32 admin_pfc_tx_enable;
101 u32 admin_application_priority_tx_enable;
102 u32 admin_ets_willing;
103 u32 admin_ets_reco_valid;
104 u32 admin_pfc_willing;
105 u32 admin_app_priority_willing;
106 u32 admin_configuration_bw_precentage[8];
107 u32 admin_configuration_ets_pg[8];
108 u32 admin_recommendation_bw_precentage[8];
109 u32 admin_recommendation_ets_pg[8];
110 u32 admin_pfc_bitmap;
111 struct bnx2x_admin_priority_app_table admin_priority_app_table[4];
112 u32 admin_default_priority;
113};
114
115#define GET_FLAGS(flags, bits) ((flags) & (bits))
116#define SET_FLAGS(flags, bits) ((flags) |= (bits))
117#define RESET_FLAGS(flags, bits) ((flags) &= ~(bits))
118
119enum {
120 DCBX_READ_LOCAL_MIB,
121 DCBX_READ_REMOTE_MIB
122};
123
124#define ETH_TYPE_FCOE (0x8906)
125#define TCP_PORT_ISCSI (0xCBC)
126
127#define PFC_VALUE_FRAME_SIZE (512)
128#define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \
129 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed))
130
131#define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130
132#define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170
133
134
135
136struct cos_entry_help_data {
137 u32 pri_join_mask;
138 u32 cos_bw;
139 u8 strict;
140 bool pausable;
141};
142
143struct cos_help_data {
144 struct cos_entry_help_data data[E2_NUM_OF_COS];
145 u8 num_of_cos;
146};
147
148#define DCBX_ILLEGAL_PG (0xFF)
149#define DCBX_PFC_PRI_MASK (0xFF)
150#define DCBX_STRICT_PRIORITY (15)
151#define DCBX_INVALID_COS_BW (0xFFFFFFFF)
152#define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \
153 ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask)
154#define DCBX_PFC_PRI_PAUSE_MASK(bp) \
155 ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp))
156#define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \
157 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp)))
158#define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \
159 (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri))
160#define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \
161 (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri)))
162#define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\
163 ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri)))
164#define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \
165 (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \
166 IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri))))
167
168
169struct pg_entry_help_data {
170 u8 num_of_dif_pri;
171 u8 pg;
172 u32 pg_priority;
173};
174
175struct pg_help_data {
176 struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
177 u8 num_of_pg;
178};
179
180/* forward DCB/PFC related declarations */
181struct bnx2x;
182void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp);
183void bnx2x_dcbx_update(struct work_struct *work);
184void bnx2x_dcbx_init_params(struct bnx2x *bp);
185
186enum {
187 BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1,
188 BNX2X_DCBX_STATE_TX_PAUSED = 0x2,
189 BNX2X_DCBX_STATE_TX_RELEASED = 0x4
190};
191void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state);
192
193#endif /* BNX2X_DCB_H */