1 /* bnx2x_dcb.h: Broadcom Everest network driver.
3 * Copyright 2009-2011 Broadcom Corporation
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").
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
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Dmitry Kravkov
22 #include "bnx2x_hsi.h"
24 #define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */
25 struct bnx2x_dcbx_app_params {
27 u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
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
35 struct bnx2x_dcbx_cos_params {
42 struct bnx2x_dcbx_pg_params {
44 u8 num_of_cos; /* valid COS entries */
45 struct bnx2x_dcbx_cos_params cos_params[E2_NUM_OF_COS];
48 struct bnx2x_dcbx_pfc_params {
50 u32 priority_non_pauseable_mask;
53 struct bnx2x_dcbx_port_params {
54 struct bnx2x_dcbx_pfc_params pfc;
55 struct bnx2x_dcbx_pg_params ets;
56 struct bnx2x_dcbx_app_params app;
59 #define BNX2X_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF)
60 #define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE 0
61 #define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE 1
62 #define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID (BNX2X_DCBX_CONFIG_INV_VALUE)
64 /*******************************************************************************
65 * LLDP protocol configuration parameters.
66 ******************************************************************************/
67 struct bnx2x_config_lldp_params {
68 u32 overwrite_settings;
76 struct bnx2x_admin_priority_app_table {
79 #define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF)
81 #define TRAFFIC_TYPE_ETH 0
82 #define TRAFFIC_TYPE_PORT 1
86 /*******************************************************************************
87 * DCBX protocol configuration parameters.
88 ******************************************************************************/
89 struct bnx2x_config_dcbx_params {
90 u32 overwrite_settings;
91 u32 admin_dcbx_version;
94 u32 admin_tc_supported_tx_enable;
95 u32 admin_ets_configuration_tx_enable;
96 u32 admin_ets_recommendation_tx_enable;
97 u32 admin_pfc_tx_enable;
98 u32 admin_application_priority_tx_enable;
99 u32 admin_ets_willing;
100 u32 admin_ets_reco_valid;
101 u32 admin_pfc_willing;
102 u32 admin_app_priority_willing;
103 u32 admin_configuration_bw_precentage[8];
104 u32 admin_configuration_ets_pg[8];
105 u32 admin_recommendation_bw_precentage[8];
106 u32 admin_recommendation_ets_pg[8];
107 u32 admin_pfc_bitmap;
108 struct bnx2x_admin_priority_app_table admin_priority_app_table[4];
109 u32 admin_default_priority;
112 #define GET_FLAGS(flags, bits) ((flags) & (bits))
113 #define SET_FLAGS(flags, bits) ((flags) |= (bits))
114 #define RESET_FLAGS(flags, bits) ((flags) &= ~(bits))
121 #define ETH_TYPE_FCOE (0x8906)
122 #define TCP_PORT_ISCSI (0xCBC)
124 #define PFC_VALUE_FRAME_SIZE (512)
125 #define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \
126 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed))
128 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130
129 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170
133 struct cos_entry_help_data {
140 struct cos_help_data {
141 struct cos_entry_help_data data[E2_NUM_OF_COS];
145 #define DCBX_ILLEGAL_PG (0xFF)
146 #define DCBX_PFC_PRI_MASK (0xFF)
147 #define DCBX_STRICT_PRIORITY (15)
148 #define DCBX_INVALID_COS_BW (0xFFFFFFFF)
149 #define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \
150 ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask)
151 #define DCBX_PFC_PRI_PAUSE_MASK(bp) \
152 ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp))
153 #define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \
154 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp)))
155 #define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \
156 (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri))
157 #define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \
158 (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri)))
159 #define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\
160 ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri)))
161 #define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \
162 (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \
163 IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri))))
166 struct pg_entry_help_data {
172 struct pg_help_data {
173 struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
177 /* forward DCB/PFC related declarations */
179 void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp);
180 void bnx2x_dcbx_update(struct work_struct *work);
181 void bnx2x_dcbx_init_params(struct bnx2x *bp);
182 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled);
185 BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1,
187 BNX2X_DCBX_STATE_ISCSI_STOPPED,
189 BNX2X_DCBX_STATE_TX_PAUSED,
190 BNX2X_DCBX_STATE_TX_RELEASED
193 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state);
197 extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops;
198 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall);
199 #endif /* BCM_DCBNL */
201 #endif /* BNX2X_DCB_H */