ath9k_hw: fix synth delay for half/quarter channels
[deliverable/linux.git] / drivers / net / cxgb3 / adapter.h
CommitLineData
4d22de3e 1/*
a02d44a0 2 * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved.
4d22de3e 3 *
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4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
4d22de3e 9 *
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10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
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31 */
32
33/* This file should not be included directly. Include common.h instead. */
34
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>
a13fbee0 43#include <linux/mutex.h>
1977f032 44#include <linux/bitops.h>
4d22de3e 45#include "t3cdev.h"
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46#include <asm/io.h>
47
4d22de3e 48struct vlan_group;
5fbf816f 49struct adapter;
bea3348e 50struct sge_qset;
f14d42f3 51struct port_info;
bea3348e 52
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53enum mac_idx_types {
54 LAN_MAC_IDX = 0,
55 SAN_MAC_IDX,
56
57 MAX_MAC_IDX
58};
59
60struct iscsi_config {
61 __u8 mac_addr[ETH_ALEN];
62 __u32 flags;
63 int (*send)(struct port_info *pi, struct sk_buff **skb);
64 int (*recv)(struct port_info *pi, struct sk_buff *skb);
65};
66
4d22de3e 67struct port_info {
5fbf816f 68 struct adapter *adapter;
4d22de3e 69 struct vlan_group *vlan_grp;
bea3348e 70 struct sge_qset *qs;
4d22de3e 71 u8 port_id;
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72 u8 nqsets;
73 u8 first_qset;
74 struct cphy phy;
75 struct cmac mac;
76 struct link_config link_config;
77 struct net_device_stats netstats;
78 int activity;
a109a5b9 79 __be32 iscsi_ipv4addr;
f14d42f3 80 struct iscsi_config iscsic;
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81
82 int link_fault; /* link fault was detected */
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83};
84
85enum { /* adapter flags */
86 FULL_INIT_DONE = (1 << 0),
87 USING_MSI = (1 << 1),
88 USING_MSIX = (1 << 2),
14ab9892 89 QUEUES_BOUND = (1 << 3),
b881955b 90 TP_PARITY_INIT = (1 << 4),
48c4b6db 91 NAPI_INIT = (1 << 5),
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92};
93
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94struct fl_pg_chunk {
95 struct page *page;
96 void *va;
97 unsigned int offset;
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98 unsigned long *p_cnt;
99 dma_addr_t mapping;
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100};
101
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102struct rx_desc;
103struct rx_sw_desc;
104
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105struct sge_fl { /* SGE per free-buffer list state */
106 unsigned int buf_size; /* size of each Rx buffer */
107 unsigned int credits; /* # of available Rx buffers */
26b3871d 108 unsigned int pend_cred; /* new buffers since last FL DB ring */
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109 unsigned int size; /* capacity of free list */
110 unsigned int cidx; /* consumer index */
111 unsigned int pidx; /* producer index */
112 unsigned int gen; /* free list generation */
113 struct fl_pg_chunk pg_chunk;/* page chunk cache */
114 unsigned int use_pages; /* whether FL uses pages or sk_buffs */
7385ecf3 115 unsigned int order; /* order of page allocations */
5e68b772 116 unsigned int alloc_size; /* size of allocated buffer */
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117 struct rx_desc *desc; /* address of HW Rx descriptor ring */
118 struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */
119 dma_addr_t phys_addr; /* physical address of HW ring start */
120 unsigned int cntxt_id; /* SGE context id for the free list */
121 unsigned long empty; /* # of times queue ran out of buffers */
e0994eb1 122 unsigned long alloc_failed; /* # of times buffer allocation failed */
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123};
124
125/*
126 * Bundle size for grouping offload RX packets for delivery to the stack.
127 * Don't make this too big as we do prefetch on each packet in a bundle.
128 */
129# define RX_BUNDLE_SIZE 8
130
131struct rsp_desc;
132
133struct sge_rspq { /* state for an SGE response queue */
134 unsigned int credits; /* # of pending response credits */
135 unsigned int size; /* capacity of response queue */
136 unsigned int cidx; /* consumer index */
137 unsigned int gen; /* current generation bit */
138 unsigned int polling; /* is the queue serviced through NAPI? */
139 unsigned int holdoff_tmr; /* interrupt holdoff timer in 100ns */
140 unsigned int next_holdoff; /* holdoff time for next interrupt */
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141 unsigned int rx_recycle_buf; /* whether recycling occurred
142 within current sop-eop */
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143 struct rsp_desc *desc; /* address of HW response ring */
144 dma_addr_t phys_addr; /* physical address of the ring */
145 unsigned int cntxt_id; /* SGE context id for the response q */
146 spinlock_t lock; /* guards response processing */
147e70e6 147 struct sk_buff_head rx_queue; /* offload packet receive queue */
7385ecf3 148 struct sk_buff *pg_skb; /* used to build frag list in napi handler */
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149
150 unsigned long offload_pkts;
151 unsigned long offload_bundles;
152 unsigned long eth_pkts; /* # of ethernet packets */
153 unsigned long pure_rsps; /* # of pure (non-data) responses */
154 unsigned long imm_data; /* responses with immediate data */
155 unsigned long rx_drops; /* # of packets dropped due to no mem */
156 unsigned long async_notif; /* # of asynchronous notification events */
157 unsigned long empty; /* # of times queue ran out of credits */
158 unsigned long nomem; /* # of responses deferred due to no mem */
159 unsigned long unhandled_irqs; /* # of spurious intrs */
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160 unsigned long starved;
161 unsigned long restarted;
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162};
163
164struct tx_desc;
165struct tx_sw_desc;
166
167struct sge_txq { /* state for an SGE Tx queue */
168 unsigned long flags; /* HW DMA fetch status */
169 unsigned int in_use; /* # of in-use Tx descriptors */
170 unsigned int size; /* # of descriptors */
171 unsigned int processed; /* total # of descs HW has processed */
172 unsigned int cleaned; /* total # of descs SW has reclaimed */
173 unsigned int stop_thres; /* SW TX queue suspend threshold */
174 unsigned int cidx; /* consumer index */
175 unsigned int pidx; /* producer index */
176 unsigned int gen; /* current value of generation bit */
177 unsigned int unacked; /* Tx descriptors used since last COMPL */
178 struct tx_desc *desc; /* address of HW Tx descriptor ring */
179 struct tx_sw_desc *sdesc; /* address of SW Tx descriptor ring */
180 spinlock_t lock; /* guards enqueueing of new packets */
181 unsigned int token; /* WR token */
182 dma_addr_t phys_addr; /* physical address of the ring */
183 struct sk_buff_head sendq; /* List of backpressured offload packets */
184 struct tasklet_struct qresume_tsk; /* restarts the queue */
185 unsigned int cntxt_id; /* SGE context id for the Tx q */
186 unsigned long stops; /* # of times q has been stopped */
187 unsigned long restarts; /* # of queue restarts */
188};
189
190enum { /* per port SGE statistics */
191 SGE_PSTAT_TSO, /* # of TSO requests */
192 SGE_PSTAT_RX_CSUM_GOOD, /* # of successful RX csum offloads */
193 SGE_PSTAT_TX_CSUM, /* # of TX checksum offloads */
194 SGE_PSTAT_VLANEX, /* # of VLAN tag extractions */
195 SGE_PSTAT_VLANINS, /* # of VLAN tag insertions */
196
197 SGE_PSTAT_MAX /* must be last */
198};
199
7be2df45 200struct napi_gro_fraginfo;
b47385bd 201
4d22de3e 202struct sge_qset { /* an SGE queue set */
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203 struct adapter *adap;
204 struct napi_struct napi;
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205 struct sge_rspq rspq;
206 struct sge_fl fl[SGE_RXQ_PER_SET];
207 struct sge_txq txq[SGE_TXQ_PER_SET];
76620aaf 208 int nomem;
b47385bd 209 void *lro_va;
bea3348e 210 struct net_device *netdev;
82ad3329 211 struct netdev_queue *tx_q; /* associated netdev TX queue */
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212 unsigned long txq_stopped; /* which Tx queues are stopped */
213 struct timer_list tx_reclaim_timer; /* reclaims TX buffers */
42c8ea17 214 struct timer_list rx_reclaim_timer; /* reclaims RX buffers */
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215 unsigned long port_stats[SGE_PSTAT_MAX];
216} ____cacheline_aligned;
217
218struct sge {
219 struct sge_qset qs[SGE_QSETS];
220 spinlock_t reg_lock; /* guards non-atomic SGE registers (eg context) */
221};
222
223struct adapter {
224 struct t3cdev tdev;
225 struct list_head adapter_list;
226 void __iomem *regs;
227 struct pci_dev *pdev;
228 unsigned long registered_device_map;
229 unsigned long open_device_map;
230 unsigned long flags;
231
232 const char *name;
233 int msg_enable;
234 unsigned int mmio_len;
235
236 struct adapter_params params;
237 unsigned int slow_intr_mask;
238 unsigned long irq_stats[IRQ_NUM_STATS];
239
5cda9364 240 int msix_nvectors;
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241 struct {
242 unsigned short vec;
243 char desc[22];
244 } msix_info[SGE_QSETS + 1];
245
246 /* T3 modules */
247 struct sge sge;
248 struct mc7 pmrx;
249 struct mc7 pmtx;
250 struct mc7 cm;
251 struct mc5 mc5;
252
253 struct net_device *port[MAX_NPORTS];
254 unsigned int check_task_cnt;
255 struct delayed_work adap_check_task;
256 struct work_struct ext_intr_handler_task;
20d3fc11 257 struct work_struct fatal_error_handler_task;
bf792094 258 struct work_struct link_fault_handler_task;
4d22de3e 259
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260 struct work_struct db_full_task;
261 struct work_struct db_empty_task;
262 struct work_struct db_drop_task;
263
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264 struct dentry *debugfs_root;
265
266 struct mutex mdio_lock;
267 spinlock_t stats_lock;
268 spinlock_t work_lock;
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269
270 struct sk_buff *nofail_skb;
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271};
272
273static inline u32 t3_read_reg(struct adapter *adapter, u32 reg_addr)
274{
275 u32 val = readl(adapter->regs + reg_addr);
276
277 CH_DBG(adapter, MMIO, "read register 0x%x value 0x%x\n", reg_addr, val);
278 return val;
279}
280
281static inline void t3_write_reg(struct adapter *adapter, u32 reg_addr, u32 val)
282{
283 CH_DBG(adapter, MMIO, "setting register 0x%x to 0x%x\n", reg_addr, val);
284 writel(val, adapter->regs + reg_addr);
285}
286
287static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
288{
289 return netdev_priv(adap->port[idx]);
290}
291
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292static inline int phy2portid(struct cphy *phy)
293{
294 struct adapter *adap = phy->adapter;
295 struct port_info *port0 = adap2pinfo(adap, 0);
296
297 return &port0->phy == phy ? 0 : 1;
298}
299
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300#define OFFLOAD_DEVMAP_BIT 15
301
302#define tdev2adap(d) container_of(d, struct adapter, tdev)
303
304static inline int offload_running(struct adapter *adapter)
305{
306 return test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
307}
308
309int t3_offload_tx(struct t3cdev *tdev, struct sk_buff *skb);
310
311void t3_os_ext_intr_handler(struct adapter *adapter);
312void t3_os_link_changed(struct adapter *adapter, int port_id, int link_status,
313 int speed, int duplex, int fc);
04497982 314void t3_os_phymod_changed(struct adapter *adap, int port_id);
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315void t3_os_link_fault(struct adapter *adapter, int port_id, int state);
316void t3_os_link_fault_handler(struct adapter *adapter, int port_id);
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317
318void t3_sge_start(struct adapter *adap);
319void t3_sge_stop(struct adapter *adap);
31563789 320void t3_start_sge_timers(struct adapter *adap);
0ca41c04 321void t3_stop_sge_timers(struct adapter *adap);
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322void t3_free_sge_resources(struct adapter *adap);
323void t3_sge_err_intr_handler(struct adapter *adapter);
7c239975 324irq_handler_t t3_intr_handler(struct adapter *adap, int polling);
61357325 325netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev);
14ab9892 326int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
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327void t3_update_qset_coalesce(struct sge_qset *qs, const struct qset_params *p);
328int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
329 int irq_vec_idx, const struct qset_params *p,
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330 int ntxq, struct net_device *dev,
331 struct netdev_queue *netdevq);
e998f245 332extern struct workqueue_struct *cxgb3_wq;
4d22de3e 333
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334int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size);
335
4d22de3e 336#endif /* __T3_ADAPTER_H__ */
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