tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
3 */
4
5#ifndef AM65_CPSW_QOS_H_
6#define AM65_CPSW_QOS_H_
7
8#include <linux/netdevice.h>
9#include <net/pkt_sched.h>
10
11struct am65_cpsw_common;
12struct am65_cpsw_port;
13
14struct am65_cpsw_est {
15 int buf;
16 /* has to be the last one */
17 struct tc_taprio_qopt_offload taprio;
18};
19
20struct am65_cpsw_mqprio {
21 struct tc_mqprio_qopt_offload mqprio_hw;
22 u64 max_rate_total;
23 bool shaper_en;
24};
25
26struct am65_cpsw_iet {
27 u8 preemptible_tcs;
28 u32 original_max_blks;
29 int verify_time_ms;
30};
31
32struct am65_cpsw_ale_ratelimit {
33 unsigned long cookie;
34 u64 rate_packet_ps;
35};
36
37struct am65_cpsw_qos {
38 struct am65_cpsw_est *est_admin;
39 struct am65_cpsw_est *est_oper;
40 ktime_t link_down_time;
41 int link_speed;
42 struct am65_cpsw_mqprio mqprio;
43 struct am65_cpsw_iet iet;
44
45 struct am65_cpsw_ale_ratelimit ale_bc_ratelimit;
46 struct am65_cpsw_ale_ratelimit ale_mc_ratelimit;
47};
48
49#define AM65_CPSW_REG_CTL 0x004
50#define AM65_CPSW_PN_REG_CTL 0x004
51#define AM65_CPSW_PN_REG_FIFO_STATUS 0x050
52#define AM65_CPSW_PN_REG_EST_CTL 0x060
53#define AM65_CPSW_PN_REG_PRI_CIR(pri) (0x140 + 4 * (pri))
54#define AM65_CPSW_P0_REG_PRI_EIR(pri) (0x160 + 4 * (pri))
55
56#define AM65_CPSW_PN_REG_CTL 0x004
57#define AM65_CPSW_PN_REG_TX_PRI_MAP 0x018
58#define AM65_CPSW_PN_REG_RX_PRI_MAP 0x020
59#define AM65_CPSW_PN_REG_FIFO_STATUS 0x050
60#define AM65_CPSW_PN_REG_EST_CTL 0x060
61#define AM65_CPSW_PN_REG_PRI_CIR(pri) (0x140 + 4 * (pri))
62#define AM65_CPSW_PN_REG_PRI_EIR(pri) (0x160 + 4 * (pri))
63
64/* AM65_CPSW_REG_CTL register fields */
65#define AM65_CPSW_CTL_EST_EN BIT(18)
66
67/* AM65_CPSW_PN_REG_CTL register fields */
68#define AM65_CPSW_PN_CTL_EST_PORT_EN BIT(17)
69
70/* AM65_CPSW_PN_REG_EST_CTL register fields */
71#define AM65_CPSW_PN_EST_ONEBUF BIT(0)
72#define AM65_CPSW_PN_EST_BUFSEL BIT(1)
73#define AM65_CPSW_PN_EST_TS_EN BIT(2)
74#define AM65_CPSW_PN_EST_TS_FIRST BIT(3)
75#define AM65_CPSW_PN_EST_ONEPRI BIT(4)
76#define AM65_CPSW_PN_EST_TS_PRI_MSK GENMASK(7, 5)
77
78/* AM65_CPSW_PN_REG_FIFO_STATUS register fields */
79#define AM65_CPSW_PN_FST_TX_PRI_ACTIVE_MSK GENMASK(7, 0)
80#define AM65_CPSW_PN_FST_TX_E_MAC_ALLOW_MSK GENMASK(15, 8)
81#define AM65_CPSW_PN_FST_EST_CNT_ERR BIT(16)
82#define AM65_CPSW_PN_FST_EST_ADD_ERR BIT(17)
83#define AM65_CPSW_PN_FST_EST_BUFACT BIT(18)
84
85/* EST FETCH COMMAND RAM */
86#define AM65_CPSW_FETCH_RAM_CMD_NUM 0x80
87#define AM65_CPSW_FETCH_CNT_MSK GENMASK(21, 8)
88#define AM65_CPSW_FETCH_CNT_MAX (AM65_CPSW_FETCH_CNT_MSK >> 8)
89#define AM65_CPSW_FETCH_CNT_OFFSET 8
90#define AM65_CPSW_FETCH_ALLOW_MSK GENMASK(7, 0)
91#define AM65_CPSW_FETCH_ALLOW_MAX AM65_CPSW_FETCH_ALLOW_MSK
92
93/* number of priority queues per port FIFO */
94#define AM65_CPSW_PN_FIFO_PRIO_NUM 8
95
96#if IS_ENABLED(CONFIG_TI_AM65_CPSW_QOS)
97int am65_cpsw_qos_ndo_setup_tc(struct net_device *ndev, enum tc_setup_type type,
98 void *type_data);
99void am65_cpsw_qos_link_up(struct net_device *ndev, int link_speed);
100void am65_cpsw_qos_link_down(struct net_device *ndev);
101int am65_cpsw_qos_ndo_tx_p0_set_maxrate(struct net_device *ndev, int queue, u32 rate_mbps);
102void am65_cpsw_qos_tx_p0_rate_init(struct am65_cpsw_common *common);
103void am65_cpsw_iet_commit_preemptible_tcs(struct am65_cpsw_port *port);
104void am65_cpsw_iet_common_enable(struct am65_cpsw_common *common);
105#else
106static inline int am65_cpsw_qos_ndo_setup_tc(struct net_device *ndev,
107 enum tc_setup_type type,
108 void *type_data)
109{
110 return -EOPNOTSUPP;
111}
112
113static inline void am65_cpsw_qos_link_up(struct net_device *ndev,
114 int link_speed)
115{ }
116
117static inline void am65_cpsw_qos_link_down(struct net_device *ndev)
118{ }
119
120static inline int am65_cpsw_qos_ndo_tx_p0_set_maxrate(struct net_device *ndev,
121 int queue,
122 u32 rate_mbps)
123{
124 return 0;
125}
126
127static inline void am65_cpsw_qos_tx_p0_rate_init(struct am65_cpsw_common *common)
128{ }
129static inline void am65_cpsw_iet_commit_preemptible_tcs(struct am65_cpsw_port *port)
130{ }
131static inline void am65_cpsw_iet_common_enable(struct am65_cpsw_common *common)
132{ }
133#endif
134
135#define AM65_CPSW_REG_CTL 0x004
136#define AM65_CPSW_PN_REG_CTL 0x004
137#define AM65_CPSW_PN_REG_MAX_BLKS 0x008
138#define AM65_CPSW_PN_REG_TX_PRI_MAP 0x018
139#define AM65_CPSW_PN_REG_RX_PRI_MAP 0x020
140#define AM65_CPSW_PN_REG_IET_CTRL 0x040
141#define AM65_CPSW_PN_REG_IET_STATUS 0x044
142#define AM65_CPSW_PN_REG_IET_VERIFY 0x048
143#define AM65_CPSW_PN_REG_FIFO_STATUS 0x050
144#define AM65_CPSW_PN_REG_EST_CTL 0x060
145#define AM65_CPSW_PN_REG_PRI_CIR(pri) (0x140 + 4 * (pri))
146#define AM65_CPSW_PN_REG_PRI_EIR(pri) (0x160 + 4 * (pri))
147
148/* AM65_CPSW_REG_CTL register fields */
149#define AM65_CPSW_CTL_IET_EN BIT(17)
150#define AM65_CPSW_CTL_EST_EN BIT(18)
151
152/* AM65_CPSW_PN_REG_CTL register fields */
153#define AM65_CPSW_PN_CTL_IET_PORT_EN BIT(16)
154#define AM65_CPSW_PN_CTL_EST_PORT_EN BIT(17)
155
156/* AM65_CPSW_PN_REG_EST_CTL register fields */
157#define AM65_CPSW_PN_EST_ONEBUF BIT(0)
158#define AM65_CPSW_PN_EST_BUFSEL BIT(1)
159#define AM65_CPSW_PN_EST_TS_EN BIT(2)
160#define AM65_CPSW_PN_EST_TS_FIRST BIT(3)
161#define AM65_CPSW_PN_EST_ONEPRI BIT(4)
162#define AM65_CPSW_PN_EST_TS_PRI_MSK GENMASK(7, 5)
163
164/* AM65_CPSW_PN_REG_IET_CTRL register fields */
165#define AM65_CPSW_PN_IET_MAC_PENABLE BIT(0)
166#define AM65_CPSW_PN_IET_MAC_DISABLEVERIFY BIT(2)
167#define AM65_CPSW_PN_IET_MAC_LINKFAIL BIT(3)
168#define AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_MASK GENMASK(10, 8)
169#define AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_OFFSET 8
170#define AM65_CPSW_PN_IET_MAC_PREMPT_MASK GENMASK(23, 16)
171#define AM65_CPSW_PN_IET_MAC_PREMPT_OFFSET 16
172
173#define AM65_CPSW_PN_IET_MAC_SET_ADDFRAGSIZE(n) (((n) << AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_OFFSET) & \
174 AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_MASK)
175#define AM65_CPSW_PN_IET_MAC_GET_ADDFRAGSIZE(n) (((n) & AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_MASK) >> \
176 AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_OFFSET)
177#define AM65_CPSW_PN_IET_MAC_SET_PREEMPT(n) (((n) << AM65_CPSW_PN_IET_MAC_PREMPT_OFFSET) & \
178 AM65_CPSW_PN_IET_MAC_PREMPT_MASK)
179#define AM65_CPSW_PN_IET_MAC_GET_PREEMPT(n) (((n) & AM65_CPSW_PN_IET_MAC_PREMPT_MASK) >> \
180 AM65_CPSW_PN_IET_MAC_PREMPT_OFFSET)
181
182/* AM65_CPSW_PN_REG_IET_STATUS register fields */
183#define AM65_CPSW_PN_MAC_STATUS GENMASK(3, 0)
184#define AM65_CPSW_PN_MAC_VERIFIED BIT(0)
185#define AM65_CPSW_PN_MAC_VERIFY_FAIL BIT(1)
186#define AM65_CPSW_PN_MAC_RESPOND_ERR BIT(2)
187#define AM65_CPSW_PN_MAC_VERIFY_ERR BIT(3)
188
189/* AM65_CPSW_PN_REG_IET_VERIFY register fields */
190#define AM65_CPSW_PN_MAC_VERIFY_CNT_MASK GENMASK(23, 0)
191#define AM65_CPSW_PN_MAC_GET_VERIFY_CNT(n) ((n) & AM65_CPSW_PN_MAC_VERIFY_CNT_MASK)
192/* 10 msec converted to NSEC */
193#define AM65_CPSW_IET_VERIFY_CNT_MS (10)
194#define AM65_CPSW_IET_VERIFY_CNT_NS (AM65_CPSW_IET_VERIFY_CNT_MS * \
195 NSEC_PER_MSEC)
196
197/* AM65_CPSW_PN_REG_FIFO_STATUS register fields */
198#define AM65_CPSW_PN_FST_TX_PRI_ACTIVE_MSK GENMASK(7, 0)
199#define AM65_CPSW_PN_FST_TX_E_MAC_ALLOW_MSK GENMASK(15, 8)
200#define AM65_CPSW_PN_FST_EST_CNT_ERR BIT(16)
201#define AM65_CPSW_PN_FST_EST_ADD_ERR BIT(17)
202#define AM65_CPSW_PN_FST_EST_BUFACT BIT(18)
203
204/* EST FETCH COMMAND RAM */
205#define AM65_CPSW_FETCH_RAM_CMD_NUM 0x80
206#define AM65_CPSW_FETCH_CNT_MSK GENMASK(21, 8)
207#define AM65_CPSW_FETCH_CNT_MAX (AM65_CPSW_FETCH_CNT_MSK >> 8)
208#define AM65_CPSW_FETCH_CNT_OFFSET 8
209#define AM65_CPSW_FETCH_ALLOW_MSK GENMASK(7, 0)
210#define AM65_CPSW_FETCH_ALLOW_MAX AM65_CPSW_FETCH_ALLOW_MSK
211
212/* AM65_CPSW_PN_REG_MAX_BLKS fields for IET and No IET cases */
213/* 7 blocks for pn_rx_max_blks, 13 for pn_tx_max_blks*/
214#define AM65_CPSW_PN_TX_RX_MAX_BLKS_IET 0xD07
215
216/* Slave IET Stats. register offsets */
217#define AM65_CPSW_STATN_IET_RX_ASSEMBLY_ERROR 0x140
218#define AM65_CPSW_STATN_IET_RX_ASSEMBLY_OK 0x144
219#define AM65_CPSW_STATN_IET_RX_SMD_ERROR 0x148
220#define AM65_CPSW_STATN_IET_RX_FRAG 0x14c
221#define AM65_CPSW_STATN_IET_TX_HOLD 0x150
222#define AM65_CPSW_STATN_IET_TX_FRAG 0x154
223
224/* number of priority queues per port FIFO */
225#define AM65_CPSW_PN_FIFO_PRIO_NUM 8
226
227#endif /* AM65_CPSW_QOS_H_ */