Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[deliverable/linux.git] / drivers / net / ethernet / brocade / bna / bnad.h
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1/*
2 * Linux network driver for Brocade Converged Network Adapter.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
7 *
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
12 */
13/*
14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
15 * All rights reserved
16 * www.brocade.com
17 */
18#ifndef __BNAD_H__
19#define __BNAD_H__
20
21#include <linux/rtnetlink.h>
22#include <linux/workqueue.h>
23#include <linux/ipv6.h>
24#include <linux/etherdevice.h>
25#include <linux/mutex.h>
26#include <linux/firmware.h>
f859d7cb 27#include <linux/if_vlan.h>
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28
29/* Fix for IA64 */
30#include <asm/checksum.h>
31#include <net/ip6_checksum.h>
32
33#include <net/ip.h>
34#include <net/tcp.h>
35
36#include "bna.h"
37
38#define BNAD_TXQ_DEPTH 2048
39#define BNAD_RXQ_DEPTH 2048
40
772b5235 41#define BNAD_MAX_TX 1
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42#define BNAD_MAX_TXQ_PER_TX 8 /* 8 priority queues */
43#define BNAD_TXQ_NUM 1
44
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45#define BNAD_MAX_RX 1
46#define BNAD_MAX_RXP_PER_RX 16
078086f3 47#define BNAD_MAX_RXQ_PER_RXP 2
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48
49/*
50 * Control structure pointed to ccb->ctrl, which
51 * determines the NAPI / LRO behavior CCB
52 * There is 1:1 corres. between ccb & ctrl
53 */
54struct bnad_rx_ctrl {
55 struct bna_ccb *ccb;
2be67144 56 struct bnad *bnad;
be7fa326 57 unsigned long flags;
8b230ed8 58 struct napi_struct napi;
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59 u64 rx_intr_ctr;
60 u64 rx_poll_ctr;
61 u64 rx_schedule;
62 u64 rx_keep_poll;
63 u64 rx_complete;
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64};
65
66#define BNAD_RXMODE_PROMISC_DEFAULT BNA_RXMODE_PROMISC
67
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68/*
69 * GLOBAL #defines (CONSTANTS)
70 */
71#define BNAD_NAME "bna"
72#define BNAD_NAME_LEN 64
73
9450f750 74#define BNAD_VERSION "3.0.23.0"
8b230ed8 75
8811e267 76#define BNAD_MAILBOX_MSIX_INDEX 0
8b230ed8 77#define BNAD_MAILBOX_MSIX_VECTORS 1
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78#define BNAD_INTX_TX_IB_BITMASK 0x1
79#define BNAD_INTX_RX_IB_BITMASK 0x2
8b230ed8 80
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81#define BNAD_STATS_TIMER_FREQ 1000 /* in msecs */
82#define BNAD_DIM_TIMER_FREQ 1000 /* in msecs */
8b230ed8 83
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84#define BNAD_IOCETH_TIMEOUT 10000
85
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86#define BNAD_MAX_Q_DEPTH 0x10000
87#define BNAD_MIN_Q_DEPTH 0x200
88
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89#define BNAD_MAX_RXQ_DEPTH (BNAD_MAX_Q_DEPTH / bnad_rxqs_per_cq)
90/* keeping MAX TX and RX Q depth equal */
91#define BNAD_MAX_TXQ_DEPTH BNAD_MAX_RXQ_DEPTH
92
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93#define BNAD_JUMBO_MTU 9000
94
95#define BNAD_NETIF_WAKE_THRESHOLD 8
96
97#define BNAD_RXQ_REFILL_THRESHOLD_SHIFT 3
98
99/* Bit positions for tcb->flags */
100#define BNAD_TXQ_FREE_SENT 0
be7fa326 101#define BNAD_TXQ_TX_STARTED 1
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102
103/* Bit positions for rcb->flags */
104#define BNAD_RXQ_REFILL 0
105#define BNAD_RXQ_STARTED 1
5bcf6ac0 106#define BNAD_RXQ_POST_OK 2
8b230ed8 107
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108/* Resource limits */
109#define BNAD_NUM_TXQ (bnad->num_tx * bnad->num_txq_per_tx)
110#define BNAD_NUM_RXP (bnad->num_rx * bnad->num_rxp_per_rx)
111
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112/*
113 * DATA STRUCTURES
114 */
115
116/* enums */
117enum bnad_intr_source {
118 BNAD_INTR_TX = 1,
119 BNAD_INTR_RX = 2
120};
121
122enum bnad_link_state {
123 BNAD_LS_DOWN = 0,
0120b99c 124 BNAD_LS_UP = 1
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125};
126
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127struct bnad_iocmd_comp {
128 struct bnad *bnad;
129 struct completion comp;
130 int comp_status;
131};
132
8b230ed8 133struct bnad_completion {
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134 struct completion ioc_comp;
135 struct completion ucast_comp;
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136 struct completion mcast_comp;
137 struct completion tx_comp;
138 struct completion rx_comp;
139 struct completion stats_comp;
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140 struct completion enet_comp;
141 struct completion mtu_comp;
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142
143 u8 ioc_comp_status;
144 u8 ucast_comp_status;
145 u8 mcast_comp_status;
146 u8 tx_comp_status;
147 u8 rx_comp_status;
148 u8 stats_comp_status;
149 u8 port_comp_status;
078086f3 150 u8 mtu_comp_status;
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151};
152
153/* Tx Rx Control Stats */
154struct bnad_drv_stats {
0120b99c 155 u64 netif_queue_stop;
8b230ed8 156 u64 netif_queue_wakeup;
f7c0fa4c 157 u64 netif_queue_stopped;
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158 u64 tso4;
159 u64 tso6;
160 u64 tso_err;
161 u64 tcpcsum_offload;
162 u64 udpcsum_offload;
163 u64 csum_help;
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164 u64 tx_skb_too_short;
165 u64 tx_skb_stopping;
166 u64 tx_skb_max_vectors;
167 u64 tx_skb_mss_too_long;
168 u64 tx_skb_tso_too_short;
169 u64 tx_skb_tso_prepare;
170 u64 tx_skb_non_tso_too_long;
171 u64 tx_skb_tcp_hdr;
172 u64 tx_skb_udp_hdr;
173 u64 tx_skb_csum_err;
174 u64 tx_skb_headlen_too_long;
175 u64 tx_skb_headlen_zero;
176 u64 tx_skb_frag_zero;
177 u64 tx_skb_len_mismatch;
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178
179 u64 hw_stats_updates;
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180 u64 netif_rx_dropped;
181
182 u64 link_toggle;
078086f3 183 u64 cee_toggle;
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184
185 u64 rxp_info_alloc_failed;
186 u64 mbox_intr_disabled;
187 u64 mbox_intr_enabled;
188 u64 tx_unmap_q_alloc_failed;
189 u64 rx_unmap_q_alloc_failed;
190
191 u64 rxbuf_alloc_failed;
192};
193
194/* Complete driver stats */
195struct bnad_stats {
196 struct bnad_drv_stats drv_stats;
197 struct bna_stats *bna_stats;
198};
199
200/* Tx / Rx Resources */
201struct bnad_tx_res_info {
202 struct bna_res_info res_info[BNA_TX_RES_T_MAX];
203};
204
205struct bnad_rx_res_info {
206 struct bna_res_info res_info[BNA_RX_RES_T_MAX];
207};
208
209struct bnad_tx_info {
210 struct bna_tx *tx; /* 1:1 between tx_info & tx */
211 struct bna_tcb *tcb[BNAD_MAX_TXQ_PER_TX];
078086f3 212 u32 tx_id;
01b54b14 213 struct delayed_work tx_cleanup_work;
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214} ____cacheline_aligned;
215
216struct bnad_rx_info {
217 struct bna_rx *rx; /* 1:1 between rx_info & rx */
218
772b5235 219 struct bnad_rx_ctrl rx_ctrl[BNAD_MAX_RXP_PER_RX];
078086f3 220 u32 rx_id;
01b54b14 221 struct work_struct rx_cleanup_work;
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222} ____cacheline_aligned;
223
224/* Unmap queues for Tx / Rx cleanup */
225struct bnad_skb_unmap {
226 struct sk_buff *skb;
5ea74318 227 DEFINE_DMA_UNMAP_ADDR(dma_addr);
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228};
229
230struct bnad_unmap_q {
231 u32 producer_index;
232 u32 consumer_index;
0120b99c 233 u32 q_depth;
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234 /* This should be the last one */
235 struct bnad_skb_unmap unmap_array[1];
236};
237
238/* Bit mask values for bnad->cfg_flags */
239#define BNAD_CF_DIM_ENABLED 0x01 /* DIM */
240#define BNAD_CF_PROMISC 0x02
241#define BNAD_CF_ALLMULTI 0x04
242#define BNAD_CF_MSIX 0x08 /* If in MSIx mode */
243
244/* Defines for run_flags bit-mask */
245/* Set, tested & cleared using xxx_bit() functions */
246/* Values indicated bit positions */
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247#define BNAD_RF_CEE_RUNNING 0
248#define BNAD_RF_MTU_SET 1
be7fa326 249#define BNAD_RF_MBOX_IRQ_DISABLED 2
078086f3 250#define BNAD_RF_NETDEV_REGISTERED 3
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251#define BNAD_RF_DIM_TIMER_RUNNING 4
252#define BNAD_RF_STATS_TIMER_RUNNING 5
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253#define BNAD_RF_TX_PRIO_SET 6
254
255
256/* Define for Fast Path flags */
257/* Defined as bit positions */
258#define BNAD_FP_IN_RX_PATH 0
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259
260struct bnad {
0120b99c 261 struct net_device *netdev;
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262 u32 id;
263 struct list_head list_entry;
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264
265 /* Data path */
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266 struct bnad_tx_info tx_info[BNAD_MAX_TX];
267 struct bnad_rx_info rx_info[BNAD_MAX_RX];
8b230ed8 268
f859d7cb 269 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
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270 /*
271 * These q numbers are global only because
272 * they are used to calculate MSIx vectors.
273 * Actually the exact # of queues are per Tx/Rx
274 * object.
275 */
276 u32 num_tx;
277 u32 num_rx;
278 u32 num_txq_per_tx;
279 u32 num_rxp_per_rx;
280
281 u32 txq_depth;
282 u32 rxq_depth;
283
284 u8 tx_coalescing_timeo;
285 u8 rx_coalescing_timeo;
286
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287 struct bna_rx_config rx_config[BNAD_MAX_RX];
288 struct bna_tx_config tx_config[BNAD_MAX_TX];
8b230ed8 289
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290 void __iomem *bar0; /* BAR0 address */
291
292 struct bna bna;
293
294 u32 cfg_flags;
295 unsigned long run_flags;
296
0120b99c 297 struct pci_dev *pcidev;
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298 u64 mmio_start;
299 u64 mmio_len;
300
301 u32 msix_num;
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302 struct msix_entry *msix_table;
303
304 struct mutex conf_mutex;
305 spinlock_t bna_lock ____cacheline_aligned;
306
307 /* Timers */
308 struct timer_list ioc_timer;
309 struct timer_list dim_timer;
310 struct timer_list stats_timer;
311
312 /* Control path resources, memory & irq */
313 struct bna_res_info res_info[BNA_RES_T_MAX];
078086f3 314 struct bna_res_info mod_res_info[BNA_MOD_RES_T_MAX];
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315 struct bnad_tx_res_info tx_res_info[BNAD_MAX_TX];
316 struct bnad_rx_res_info rx_res_info[BNAD_MAX_RX];
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317
318 struct bnad_completion bnad_completions;
319
320 /* Burnt in MAC address */
321 mac_t perm_addr;
322
01b54b14 323 struct workqueue_struct *work_q;
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324
325 /* Statistics */
326 struct bnad_stats stats;
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327
328 struct bnad_diag *diag;
329
330 char adapter_name[BNAD_NAME_LEN];
0120b99c 331 char port_name[BNAD_NAME_LEN];
8b230ed8 332 char mbox_irq_name[BNAD_NAME_LEN];
01b54b14 333 char wq_name[BNAD_NAME_LEN];
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334
335 /* debugfs specific data */
336 char *regdata;
337 u32 reglen;
338 struct dentry *bnad_dentry_files[5];
339 struct dentry *port_debugfs_root;
340};
341
342struct bnad_drvinfo {
343 struct bfa_ioc_attr ioc_attr;
344 struct bfa_cee_attr cee_attr;
345 struct bfa_flash_attr flash_attr;
346 u32 cee_status;
347 u32 flash_status;
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348};
349
350/*
351 * EXTERN VARIABLES
352 */
e1e0918f 353extern const struct firmware *bfi_fw;
0120b99c 354extern u32 bnad_rxqs_per_cq;
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355
356/*
357 * EXTERN PROTOTYPES
358 */
359extern u32 *cna_get_firmware_buf(struct pci_dev *pdev);
360/* Netdev entry point prototypes */
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361extern void bnad_set_rx_mode(struct net_device *netdev);
362extern struct net_device_stats *bnad_get_netdev_stats(
363 struct net_device *netdev);
364extern int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr);
365extern int bnad_enable_default_bcast(struct bnad *bnad);
366extern void bnad_restore_vlans(struct bnad *bnad, u32 rx_id);
8b230ed8 367extern void bnad_set_ethtool_ops(struct net_device *netdev);
72a9730b 368extern void bnad_cb_completion(void *arg, enum bfa_status status);
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369
370/* Configuration & setup */
371extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
372extern void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
373
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374extern int bnad_setup_rx(struct bnad *bnad, u32 rx_id);
375extern int bnad_setup_tx(struct bnad *bnad, u32 tx_id);
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376extern void bnad_destroy_tx(struct bnad *bnad, u32 tx_id);
377extern void bnad_destroy_rx(struct bnad *bnad, u32 rx_id);
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378
379/* Timer start/stop protos */
380extern void bnad_dim_timer_start(struct bnad *bnad);
381
382/* Statistics */
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383extern void bnad_netdev_qstats_fill(struct bnad *bnad,
384 struct rtnl_link_stats64 *stats);
385extern void bnad_netdev_hwstats_fill(struct bnad *bnad,
386 struct rtnl_link_stats64 *stats);
8b230ed8 387
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388/* Debugfs */
389void bnad_debugfs_init(struct bnad *bnad);
390void bnad_debugfs_uninit(struct bnad *bnad);
391
1aa8b471 392/* MACROS */
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393/* To set & get the stats counters */
394#define BNAD_UPDATE_CTR(_bnad, _ctr) \
395 (((_bnad)->stats.drv_stats._ctr)++)
396
397#define BNAD_GET_CTR(_bnad, _ctr) ((_bnad)->stats.drv_stats._ctr)
398
399#define bnad_enable_rx_irq_unsafe(_ccb) \
400{ \
271e8b79 401 if (likely(test_bit(BNAD_RXQ_STARTED, &(_ccb)->rcb[0]->flags))) {\
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402 bna_ib_coalescing_timer_set((_ccb)->i_dbell, \
403 (_ccb)->rx_coalescing_timeo); \
404 bna_ib_ack((_ccb)->i_dbell, 0); \
405 } \
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406}
407
8b230ed8 408#endif /* __BNAD_H__ */
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