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35#ifndef __T3_ADAPTER_H__
36#define __T3_ADAPTER_H__
37
38#include <linux/pci.h>
39#include <linux/spinlock.h>
40#include <linux/interrupt.h>
41#include <linux/timer.h>
42#include <linux/cache.h>
43#include <linux/mutex.h>
44#include <linux/bitops.h>
45#include "t3cdev.h"
46#include <asm/io.h>
47
48struct vlan_group;
49struct adapter;
50struct sge_qset;
51struct port_info;
52
53enum {
54 T3_RX_CSUM = 1 << 0,
55 T3_LRO = 1 << 1,
56};
57
58enum mac_idx_types {
59 LAN_MAC_IDX = 0,
60 SAN_MAC_IDX,
61
62 MAX_MAC_IDX
63};
64
65struct iscsi_config {
66 __u8 mac_addr[ETH_ALEN];
67 __u32 flags;
68 int (*send)(struct port_info *pi, struct sk_buff **skb);
69 int (*recv)(struct port_info *pi, struct sk_buff *skb);
70};
71
72struct port_info {
73 struct adapter *adapter;
74 struct vlan_group *vlan_grp;
75 struct sge_qset *qs;
76 u8 port_id;
77 u8 rx_offload;
78 u8 nqsets;
79 u8 first_qset;
80 struct cphy phy;
81 struct cmac mac;
82 struct link_config link_config;
83 struct net_device_stats netstats;
84 int activity;
85 __be32 iscsi_ipv4addr;
86 struct iscsi_config iscsic;
87
88 int link_fault;
89};
90
91enum {
92 FULL_INIT_DONE = (1 << 0),
93 USING_MSI = (1 << 1),
94 USING_MSIX = (1 << 2),
95 QUEUES_BOUND = (1 << 3),
96 TP_PARITY_INIT = (1 << 4),
97 NAPI_INIT = (1 << 5),
98};
99
100struct fl_pg_chunk {
101 struct page *page;
102 void *va;
103 unsigned int offset;
104 unsigned long *p_cnt;
105 dma_addr_t mapping;
106};
107
108struct rx_desc;
109struct rx_sw_desc;
110
111struct sge_fl {
112 unsigned int buf_size;
113 unsigned int credits;
114 unsigned int pend_cred;
115 unsigned int size;
116 unsigned int cidx;
117 unsigned int pidx;
118 unsigned int gen;
119 struct fl_pg_chunk pg_chunk;
120 unsigned int use_pages;
121 unsigned int order;
122 unsigned int alloc_size;
123 struct rx_desc *desc;
124 struct rx_sw_desc *sdesc;
125 dma_addr_t phys_addr;
126 unsigned int cntxt_id;
127 unsigned long empty;
128 unsigned long alloc_failed;
129};
130
131
132
133
134
135# define RX_BUNDLE_SIZE 8
136
137struct rsp_desc;
138
139struct sge_rspq {
140 unsigned int credits;
141 unsigned int size;
142 unsigned int cidx;
143 unsigned int gen;
144 unsigned int polling;
145 unsigned int holdoff_tmr;
146 unsigned int next_holdoff;
147 unsigned int rx_recycle_buf;
148
149 struct rsp_desc *desc;
150 dma_addr_t phys_addr;
151 unsigned int cntxt_id;
152 spinlock_t lock;
153 struct sk_buff_head rx_queue;
154 struct sk_buff *pg_skb;
155
156 unsigned long offload_pkts;
157 unsigned long offload_bundles;
158 unsigned long eth_pkts;
159 unsigned long pure_rsps;
160 unsigned long imm_data;
161 unsigned long rx_drops;
162 unsigned long async_notif;
163 unsigned long empty;
164 unsigned long nomem;
165 unsigned long unhandled_irqs;
166 unsigned long starved;
167 unsigned long restarted;
168};
169
170struct tx_desc;
171struct tx_sw_desc;
172
173struct sge_txq {
174 unsigned long flags;
175 unsigned int in_use;
176 unsigned int size;
177 unsigned int processed;
178 unsigned int cleaned;
179 unsigned int stop_thres;
180 unsigned int cidx;
181 unsigned int pidx;
182 unsigned int gen;
183 unsigned int unacked;
184 struct tx_desc *desc;
185 struct tx_sw_desc *sdesc;
186 spinlock_t lock;
187 unsigned int token;
188 dma_addr_t phys_addr;
189 struct sk_buff_head sendq;
190 struct tasklet_struct qresume_tsk;
191 unsigned int cntxt_id;
192 unsigned long stops;
193 unsigned long restarts;
194};
195
196enum {
197 SGE_PSTAT_TSO,
198 SGE_PSTAT_RX_CSUM_GOOD,
199 SGE_PSTAT_TX_CSUM,
200 SGE_PSTAT_VLANEX,
201 SGE_PSTAT_VLANINS,
202
203 SGE_PSTAT_MAX
204};
205
206struct napi_gro_fraginfo;
207
208struct sge_qset {
209 struct adapter *adap;
210 struct napi_struct napi;
211 struct sge_rspq rspq;
212 struct sge_fl fl[SGE_RXQ_PER_SET];
213 struct sge_txq txq[SGE_TXQ_PER_SET];
214 int nomem;
215 int lro_enabled;
216 void *lro_va;
217 struct net_device *netdev;
218 struct netdev_queue *tx_q;
219 unsigned long txq_stopped;
220 struct timer_list tx_reclaim_timer;
221 struct timer_list rx_reclaim_timer;
222 unsigned long port_stats[SGE_PSTAT_MAX];
223} ____cacheline_aligned;
224
225struct sge {
226 struct sge_qset qs[SGE_QSETS];
227 spinlock_t reg_lock;
228};
229
230struct adapter {
231 struct t3cdev tdev;
232 struct list_head adapter_list;
233 void __iomem *regs;
234 struct pci_dev *pdev;
235 unsigned long registered_device_map;
236 unsigned long open_device_map;
237 unsigned long flags;
238
239 const char *name;
240 int msg_enable;
241 unsigned int mmio_len;
242
243 struct adapter_params params;
244 unsigned int slow_intr_mask;
245 unsigned long irq_stats[IRQ_NUM_STATS];
246
247 int msix_nvectors;
248 struct {
249 unsigned short vec;
250 char desc[22];
251 } msix_info[SGE_QSETS + 1];
252
253
254 struct sge sge;
255 struct mc7 pmrx;
256 struct mc7 pmtx;
257 struct mc7 cm;
258 struct mc5 mc5;
259
260 struct net_device *port[MAX_NPORTS];
261 unsigned int check_task_cnt;
262 struct delayed_work adap_check_task;
263 struct work_struct ext_intr_handler_task;
264 struct work_struct fatal_error_handler_task;
265 struct work_struct link_fault_handler_task;
266
267 struct work_struct db_full_task;
268 struct work_struct db_empty_task;
269 struct work_struct db_drop_task;
270
271 struct dentry *debugfs_root;
272
273 struct mutex mdio_lock;
274 spinlock_t stats_lock;
275 spinlock_t work_lock;
276
277 struct sk_buff *nofail_skb;
278};
279
280static inline u32 t3_read_reg(struct adapter *adapter, u32 reg_addr)
281{
282 u32 val = readl(adapter->regs + reg_addr);
283
284 CH_DBG(adapter, MMIO, "read register 0x%x value 0x%x\n", reg_addr, val);
285 return val;
286}
287
288static inline void t3_write_reg(struct adapter *adapter, u32 reg_addr, u32 val)
289{
290 CH_DBG(adapter, MMIO, "setting register 0x%x to 0x%x\n", reg_addr, val);
291 writel(val, adapter->regs + reg_addr);
292}
293
294static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
295{
296 return netdev_priv(adap->port[idx]);
297}
298
299static inline int phy2portid(struct cphy *phy)
300{
301 struct adapter *adap = phy->adapter;
302 struct port_info *port0 = adap2pinfo(adap, 0);
303
304 return &port0->phy == phy ? 0 : 1;
305}
306
307#define OFFLOAD_DEVMAP_BIT 15
308
309#define tdev2adap(d) container_of(d, struct adapter, tdev)
310
311static inline int offload_running(struct adapter *adapter)
312{
313 return test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
314}
315
316int t3_offload_tx(struct t3cdev *tdev, struct sk_buff *skb);
317
318void t3_os_ext_intr_handler(struct adapter *adapter);
319void t3_os_link_changed(struct adapter *adapter, int port_id, int link_status,
320 int speed, int duplex, int fc);
321void t3_os_phymod_changed(struct adapter *adap, int port_id);
322void t3_os_link_fault(struct adapter *adapter, int port_id, int state);
323void t3_os_link_fault_handler(struct adapter *adapter, int port_id);
324
325void t3_sge_start(struct adapter *adap);
326void t3_sge_stop(struct adapter *adap);
327void t3_start_sge_timers(struct adapter *adap);
328void t3_stop_sge_timers(struct adapter *adap);
329void t3_free_sge_resources(struct adapter *adap);
330void t3_sge_err_intr_handler(struct adapter *adapter);
331irq_handler_t t3_intr_handler(struct adapter *adap, int polling);
332netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev);
333int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
334void t3_update_qset_coalesce(struct sge_qset *qs, const struct qset_params *p);
335int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
336 int irq_vec_idx, const struct qset_params *p,
337 int ntxq, struct net_device *dev,
338 struct netdev_queue *netdevq);
339extern struct workqueue_struct *cxgb3_wq;
340
341int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size);
342
343#endif
344