This source file includes following definitions.
- enetc_bdr_idx_inc
- enetc_bd_unused
- enetc_si_priv
- enetc_si_is_pf
1
2
3
4 #include <linux/timer.h>
5 #include <linux/pci.h>
6 #include <linux/netdevice.h>
7 #include <linux/etherdevice.h>
8 #include <linux/dma-mapping.h>
9 #include <linux/skbuff.h>
10 #include <linux/ethtool.h>
11 #include <linux/if_vlan.h>
12 #include <linux/phy.h>
13
14 #include "enetc_hw.h"
15
16 #define ENETC_MAC_MAXFRM_SIZE 9600
17 #define ENETC_MAX_MTU (ENETC_MAC_MAXFRM_SIZE - \
18 (ETH_FCS_LEN + ETH_HLEN + VLAN_HLEN))
19
20 struct enetc_tx_swbd {
21 struct sk_buff *skb;
22 dma_addr_t dma;
23 u16 len;
24 u8 is_dma_page:1;
25 u8 check_wb:1;
26 u8 do_tstamp:1;
27 };
28
29 #define ENETC_RX_MAXFRM_SIZE ENETC_MAC_MAXFRM_SIZE
30 #define ENETC_RXB_TRUESIZE 2048
31 #define ENETC_RXB_PAD NET_SKB_PAD
32 #define ENETC_RXB_DMA_SIZE \
33 (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - ENETC_RXB_PAD)
34
35 struct enetc_rx_swbd {
36 dma_addr_t dma;
37 struct page *page;
38 u16 page_offset;
39 };
40
41 struct enetc_ring_stats {
42 unsigned int packets;
43 unsigned int bytes;
44 unsigned int rx_alloc_errs;
45 };
46
47 #define ENETC_BDR_DEFAULT_SIZE 1024
48 #define ENETC_DEFAULT_TX_WORK 256
49
50 struct enetc_bdr {
51 struct device *dev;
52 struct net_device *ndev;
53 void *bd_base;
54 union {
55 void __iomem *tpir;
56 void __iomem *rcir;
57 };
58 u16 index;
59 int bd_count;
60 int next_to_use;
61 int next_to_clean;
62 union {
63 struct enetc_tx_swbd *tx_swbd;
64 struct enetc_rx_swbd *rx_swbd;
65 };
66 union {
67 void __iomem *tcir;
68 int next_to_alloc;
69 };
70 void __iomem *idr;
71
72 struct enetc_ring_stats stats;
73
74 dma_addr_t bd_dma_base;
75 } ____cacheline_aligned_in_smp;
76
77 static inline void enetc_bdr_idx_inc(struct enetc_bdr *bdr, int *i)
78 {
79 if (unlikely(++*i == bdr->bd_count))
80 *i = 0;
81 }
82
83 static inline int enetc_bd_unused(struct enetc_bdr *bdr)
84 {
85 if (bdr->next_to_clean > bdr->next_to_use)
86 return bdr->next_to_clean - bdr->next_to_use - 1;
87
88 return bdr->bd_count + bdr->next_to_clean - bdr->next_to_use - 1;
89 }
90
91
92 #define ENETC_CBDR_DEFAULT_SIZE 64
93 struct enetc_cbdr {
94 void *bd_base;
95 void __iomem *pir;
96 void __iomem *cir;
97
98 int bd_count;
99 int next_to_use;
100 int next_to_clean;
101
102 dma_addr_t bd_dma_base;
103 };
104
105 #define ENETC_TXBD(BDR, i) (&(((union enetc_tx_bd *)((BDR).bd_base))[i]))
106 #define ENETC_RXBD(BDR, i) (&(((union enetc_rx_bd *)((BDR).bd_base))[i]))
107
108 struct enetc_msg_swbd {
109 void *vaddr;
110 dma_addr_t dma;
111 int size;
112 };
113
114 #define ENETC_REV1 0x1
115 enum enetc_errata {
116 ENETC_ERR_TXCSUM = BIT(0),
117 ENETC_ERR_VLAN_ISOL = BIT(1),
118 ENETC_ERR_UCMCSWP = BIT(2),
119 };
120
121
122 struct enetc_si {
123 struct pci_dev *pdev;
124 struct enetc_hw hw;
125 enum enetc_errata errata;
126
127 struct net_device *ndev;
128
129 struct enetc_cbdr cbd_ring;
130
131 int num_rx_rings;
132 int num_tx_rings;
133 int num_fs_entries;
134 int num_rss;
135 unsigned short pad;
136 };
137
138 #define ENETC_SI_ALIGN 32
139
140 static inline void *enetc_si_priv(const struct enetc_si *si)
141 {
142 return (char *)si + ALIGN(sizeof(struct enetc_si), ENETC_SI_ALIGN);
143 }
144
145 static inline bool enetc_si_is_pf(struct enetc_si *si)
146 {
147 return !!(si->hw.port);
148 }
149
150 #define ENETC_MAX_NUM_TXQS 8
151 #define ENETC_INT_NAME_MAX (IFNAMSIZ + 8)
152
153 struct enetc_int_vector {
154 void __iomem *rbier;
155 void __iomem *tbier_base;
156 unsigned long tx_rings_map;
157 int count_tx_rings;
158 struct napi_struct napi;
159 char name[ENETC_INT_NAME_MAX];
160
161 struct enetc_bdr rx_ring ____cacheline_aligned_in_smp;
162 struct enetc_bdr tx_ring[0];
163 };
164
165 struct enetc_cls_rule {
166 struct ethtool_rx_flow_spec fs;
167 int used;
168 };
169
170 #define ENETC_MAX_BDR_INT 2
171
172
173 enum enetc_active_offloads {
174 ENETC_F_RX_TSTAMP = BIT(0),
175 ENETC_F_TX_TSTAMP = BIT(1),
176 };
177
178 struct enetc_ndev_priv {
179 struct net_device *ndev;
180 struct device *dev;
181 struct enetc_si *si;
182
183 int bdr_int_num;
184 struct enetc_int_vector *int_vector[ENETC_MAX_BDR_INT];
185 u16 num_rx_rings, num_tx_rings;
186 u16 rx_bd_count, tx_bd_count;
187
188 u16 msg_enable;
189 int active_offloads;
190
191 struct enetc_bdr *tx_ring[16];
192 struct enetc_bdr *rx_ring[16];
193
194 struct enetc_cls_rule *cls_rules;
195
196 struct device_node *phy_node;
197 phy_interface_t if_mode;
198 };
199
200
201
202
203 struct enetc_msg_cmd_set_primary_mac {
204 struct enetc_msg_cmd_header header;
205 struct sockaddr mac;
206 };
207
208 #define ENETC_CBD(R, i) (&(((struct enetc_cbd *)((R).bd_base))[i]))
209
210 #define ENETC_CBDR_TIMEOUT 1000
211
212
213 extern int enetc_phc_index;
214
215
216 int enetc_pci_probe(struct pci_dev *pdev, const char *name, int sizeof_priv);
217 void enetc_pci_remove(struct pci_dev *pdev);
218 int enetc_alloc_msix(struct enetc_ndev_priv *priv);
219 void enetc_free_msix(struct enetc_ndev_priv *priv);
220 void enetc_get_si_caps(struct enetc_si *si);
221 void enetc_init_si_rings_params(struct enetc_ndev_priv *priv);
222 int enetc_alloc_si_resources(struct enetc_ndev_priv *priv);
223 void enetc_free_si_resources(struct enetc_ndev_priv *priv);
224
225 int enetc_open(struct net_device *ndev);
226 int enetc_close(struct net_device *ndev);
227 netdev_tx_t enetc_xmit(struct sk_buff *skb, struct net_device *ndev);
228 struct net_device_stats *enetc_get_stats(struct net_device *ndev);
229 int enetc_set_features(struct net_device *ndev,
230 netdev_features_t features);
231 int enetc_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd);
232 int enetc_setup_tc(struct net_device *ndev, enum tc_setup_type type,
233 void *type_data);
234
235
236 void enetc_set_ethtool_ops(struct net_device *ndev);
237
238
239 int enetc_set_mac_flt_entry(struct enetc_si *si, int index,
240 char *mac_addr, int si_map);
241 int enetc_clear_mac_flt_entry(struct enetc_si *si, int index);
242 int enetc_set_fs_entry(struct enetc_si *si, struct enetc_cmd_rfse *rfse,
243 int index);
244 void enetc_set_rss_key(struct enetc_hw *hw, const u8 *bytes);
245 int enetc_get_rss_table(struct enetc_si *si, u32 *table, int count);
246 int enetc_set_rss_table(struct enetc_si *si, const u32 *table, int count);