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