1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Atlantic Network Driver
3 *
4 * Copyright (C) 2014-2019 aQuantia Corporation
5 * Copyright (C) 2019-2020 Marvell International Ltd.
6 */
7
8 /* File aq_nic.h: Declaration of common code for NIC. */
9
10 #ifndef AQ_NIC_H
11 #define AQ_NIC_H
12
13 #include <linux/ethtool.h>
14
15 #include "aq_common.h"
16 #include "aq_rss.h"
17 #include "aq_hw.h"
18
19 struct aq_ring_s;
20 struct aq_hw_ops;
21 struct aq_fw_s;
22 struct aq_vec_s;
23 struct aq_macsec_cfg;
24 struct aq_ptp_s;
25 enum aq_rx_filter_type;
26
27 enum aq_fc_mode {
28 AQ_NIC_FC_OFF = 0,
29 AQ_NIC_FC_TX,
30 AQ_NIC_FC_RX,
31 AQ_NIC_FC_FULL,
32 };
33
34 struct aq_fc_info {
35 enum aq_fc_mode req;
36 enum aq_fc_mode cur;
37 };
38
39 struct aq_nic_cfg_s {
40 const struct aq_hw_caps_s *aq_hw_caps;
41 u64 features;
42 u32 rxds; /* rx ring size, descriptors # */
43 u32 txds; /* tx ring size, descriptors # */
44 u32 vecs; /* allocated rx/tx vectors */
45 u32 link_irq_vec;
46 u32 irq_type;
47 u32 itr;
48 u16 rx_itr;
49 u16 tx_itr;
50 u32 rxpageorder;
51 u32 num_rss_queues;
52 u32 mtu;
53 struct aq_fc_info fc;
54 u32 link_speed_msk;
55 u32 wol;
56 u8 is_vlan_rx_strip;
57 u8 is_vlan_tx_insert;
58 bool is_vlan_force_promisc;
59 u16 is_mc_list_enabled;
60 u16 mc_list_count;
61 bool is_autoneg;
62 bool is_polling;
63 bool is_rss;
64 bool is_lro;
65 bool is_qos;
66 bool is_ptp;
67 bool is_media_detect;
68 int downshift_counter;
69 enum aq_tc_mode tc_mode;
70 u32 priv_flags;
71 u8 tcs;
72 u8 prio_tc_map[8];
73 u32 tc_max_rate[AQ_CFG_TCS_MAX];
74 unsigned long tc_min_rate_msk;
75 u32 tc_min_rate[AQ_CFG_TCS_MAX];
76 struct aq_rss_parameters aq_rss;
77 u32 eee_speeds;
78 };
79
80 #define AQ_NIC_FLAG_STARTED 0x00000004U
81 #define AQ_NIC_FLAG_STOPPING 0x00000008U
82 #define AQ_NIC_FLAG_RESETTING 0x00000010U
83 #define AQ_NIC_FLAG_CLOSING 0x00000020U
84 #define AQ_NIC_PTP_DPATH_UP 0x02000000U
85 #define AQ_NIC_LINK_DOWN 0x04000000U
86 #define AQ_NIC_FLAG_ERR_UNPLUG 0x40000000U
87 #define AQ_NIC_FLAG_ERR_HW 0x80000000U
88
89 #define AQ_NIC_QUIRK_BAD_PTP BIT(0)
90
91 #define AQ_NIC_WOL_MODES (WAKE_MAGIC |\
92 WAKE_PHY)
93
94 #define AQ_NIC_CFG_RING_PER_TC(_NIC_CFG_) \
95 (((_NIC_CFG_)->tc_mode == AQ_TC_MODE_4TCS) ? 8 : 4)
96
97 #define AQ_NIC_CFG_TCVEC2RING(_NIC_CFG_, _TC_, _VEC_) \
98 ((_TC_) * AQ_NIC_CFG_RING_PER_TC(_NIC_CFG_) + (_VEC_))
99
100 #define AQ_NIC_RING2QMAP(_NIC_, _ID_) \
101 ((_ID_) / AQ_NIC_CFG_RING_PER_TC(&(_NIC_)->aq_nic_cfg) * \
102 (_NIC_)->aq_vecs + \
103 ((_ID_) % AQ_NIC_CFG_RING_PER_TC(&(_NIC_)->aq_nic_cfg)))
104
105 struct aq_hw_rx_fl2 {
106 struct aq_rx_filter_vlan aq_vlans[AQ_VLAN_MAX_FILTERS];
107 };
108
109 struct aq_hw_rx_fl3l4 {
110 u8 active_ipv4;
111 u8 active_ipv6:2;
112 u8 is_ipv6;
113 u8 reserved_count;
114 };
115
116 struct aq_hw_rx_fltrs_s {
117 struct hlist_head filter_list;
118 u16 active_filters;
119 struct aq_hw_rx_fl2 fl2;
120 struct aq_hw_rx_fl3l4 fl3l4;
121 /* filter ether type */
122 u8 fet_reserved_count;
123 };
124
125 struct aq_nic_s {
126 atomic_t flags;
127 u32 msg_enable;
128 struct aq_vec_s *aq_vec[AQ_CFG_VECS_MAX];
129 struct aq_ring_s *aq_ring_tx[AQ_HW_QUEUES_MAX];
130 struct aq_hw_s *aq_hw;
131 struct net_device *ndev;
132 unsigned int aq_vecs;
133 unsigned int packet_filter;
134 unsigned int power_state;
135 u8 port;
136 const struct aq_hw_ops *aq_hw_ops;
137 const struct aq_fw_ops *aq_fw_ops;
138 struct aq_nic_cfg_s aq_nic_cfg;
139 struct timer_list service_timer;
140 struct work_struct service_task;
141 struct timer_list polling_timer;
142 struct aq_hw_link_status_s link_status;
143 struct {
144 u32 count;
145 u8 ar[AQ_HW_MULTICAST_ADDRESS_MAX][ETH_ALEN];
146 } mc_list;
147 /* Bitmask of currently assigned vlans from linux */
148 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
149
150 struct pci_dev *pdev;
151 unsigned int msix_entry_mask;
152 u32 irqvecs;
153 /* mutex to serialize FW interface access operations */
154 struct mutex fwreq_mutex;
155 #if IS_ENABLED(CONFIG_MACSEC)
156 struct aq_macsec_cfg *macsec_cfg;
157 #endif
158 /* PTP support */
159 struct aq_ptp_s *aq_ptp;
160 struct aq_hw_rx_fltrs_s aq_hw_rx_fltrs;
161 };
162
aq_nic_get_dev(struct aq_nic_s * self)163 static inline struct device *aq_nic_get_dev(struct aq_nic_s *self)
164 {
165 return self->ndev->dev.parent;
166 }
167
168 void aq_nic_ndev_init(struct aq_nic_s *self);
169 struct aq_nic_s *aq_nic_alloc_hot(struct net_device *ndev);
170 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
171 struct aq_ring_s *ring);
172 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self);
173 int aq_nic_init(struct aq_nic_s *self);
174 void aq_nic_cfg_start(struct aq_nic_s *self);
175 int aq_nic_ndev_register(struct aq_nic_s *self);
176 void aq_nic_ndev_free(struct aq_nic_s *self);
177 int aq_nic_start(struct aq_nic_s *self);
178 unsigned int aq_nic_map_skb(struct aq_nic_s *self, struct sk_buff *skb,
179 struct aq_ring_s *ring);
180 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb);
181 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p);
182 int aq_nic_get_regs_count(struct aq_nic_s *self);
183 u64 *aq_nic_get_stats(struct aq_nic_s *self, u64 *data);
184 int aq_nic_stop(struct aq_nic_s *self);
185 void aq_nic_deinit(struct aq_nic_s *self, bool link_down);
186 void aq_nic_set_power(struct aq_nic_s *self);
187 void aq_nic_free_hot_resources(struct aq_nic_s *self);
188 void aq_nic_free_vectors(struct aq_nic_s *self);
189 int aq_nic_realloc_vectors(struct aq_nic_s *self);
190 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu);
191 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev);
192 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags);
193 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev);
194 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self);
195 void aq_nic_get_link_ksettings(struct aq_nic_s *self,
196 struct ethtool_link_ksettings *cmd);
197 int aq_nic_set_link_ksettings(struct aq_nic_s *self,
198 const struct ethtool_link_ksettings *cmd);
199 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self);
200 u32 aq_nic_get_fw_version(struct aq_nic_s *self);
201 int aq_nic_set_loopback(struct aq_nic_s *self);
202 int aq_nic_set_downshift(struct aq_nic_s *self, int val);
203 int aq_nic_set_media_detect(struct aq_nic_s *self, int val);
204 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self);
205 void aq_nic_shutdown(struct aq_nic_s *self);
206 u8 aq_nic_reserve_filter(struct aq_nic_s *self, enum aq_rx_filter_type type);
207 void aq_nic_release_filter(struct aq_nic_s *self, enum aq_rx_filter_type type,
208 u32 location);
209 int aq_nic_setup_tc_mqprio(struct aq_nic_s *self, u32 tcs, u8 *prio_tc_map);
210 int aq_nic_setup_tc_max_rate(struct aq_nic_s *self, const unsigned int tc,
211 const u32 max_rate);
212 int aq_nic_setup_tc_min_rate(struct aq_nic_s *self, const unsigned int tc,
213 const u32 min_rate);
214 #endif /* AQ_NIC_H */
215