bna: PCI Probe Fix
[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;
be7fa326 56 unsigned long flags;
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57 struct napi_struct napi;
58};
59
60#define BNAD_RXMODE_PROMISC_DEFAULT BNA_RXMODE_PROMISC
61
62#define BNAD_GET_TX_ID(_skb) (0)
63
64/*
65 * GLOBAL #defines (CONSTANTS)
66 */
67#define BNAD_NAME "bna"
68#define BNAD_NAME_LEN 64
69
5098af0a 70#define BNAD_VERSION "3.0.2.0"
8b230ed8 71
8811e267 72#define BNAD_MAILBOX_MSIX_INDEX 0
8b230ed8 73#define BNAD_MAILBOX_MSIX_VECTORS 1
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74#define BNAD_INTX_TX_IB_BITMASK 0x1
75#define BNAD_INTX_RX_IB_BITMASK 0x2
8b230ed8 76
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77#define BNAD_STATS_TIMER_FREQ 1000 /* in msecs */
78#define BNAD_DIM_TIMER_FREQ 1000 /* in msecs */
8b230ed8 79
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80#define BNAD_IOCETH_TIMEOUT 10000
81
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82#define BNAD_MAX_Q_DEPTH 0x10000
83#define BNAD_MIN_Q_DEPTH 0x200
84
85#define BNAD_JUMBO_MTU 9000
86
87#define BNAD_NETIF_WAKE_THRESHOLD 8
88
89#define BNAD_RXQ_REFILL_THRESHOLD_SHIFT 3
90
91/* Bit positions for tcb->flags */
92#define BNAD_TXQ_FREE_SENT 0
be7fa326 93#define BNAD_TXQ_TX_STARTED 1
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94
95/* Bit positions for rcb->flags */
96#define BNAD_RXQ_REFILL 0
97#define BNAD_RXQ_STARTED 1
98
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99/* Resource limits */
100#define BNAD_NUM_TXQ (bnad->num_tx * bnad->num_txq_per_tx)
101#define BNAD_NUM_RXP (bnad->num_rx * bnad->num_rxp_per_rx)
102
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103/*
104 * DATA STRUCTURES
105 */
106
107/* enums */
108enum bnad_intr_source {
109 BNAD_INTR_TX = 1,
110 BNAD_INTR_RX = 2
111};
112
113enum bnad_link_state {
114 BNAD_LS_DOWN = 0,
0120b99c 115 BNAD_LS_UP = 1
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116};
117
118struct bnad_completion {
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119 struct completion ioc_comp;
120 struct completion ucast_comp;
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121 struct completion mcast_comp;
122 struct completion tx_comp;
123 struct completion rx_comp;
124 struct completion stats_comp;
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125 struct completion enet_comp;
126 struct completion mtu_comp;
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127
128 u8 ioc_comp_status;
129 u8 ucast_comp_status;
130 u8 mcast_comp_status;
131 u8 tx_comp_status;
132 u8 rx_comp_status;
133 u8 stats_comp_status;
134 u8 port_comp_status;
078086f3 135 u8 mtu_comp_status;
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136};
137
138/* Tx Rx Control Stats */
139struct bnad_drv_stats {
0120b99c 140 u64 netif_queue_stop;
8b230ed8 141 u64 netif_queue_wakeup;
f7c0fa4c 142 u64 netif_queue_stopped;
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143 u64 tso4;
144 u64 tso6;
145 u64 tso_err;
146 u64 tcpcsum_offload;
147 u64 udpcsum_offload;
148 u64 csum_help;
149 u64 csum_help_err;
150
151 u64 hw_stats_updates;
152 u64 netif_rx_schedule;
153 u64 netif_rx_complete;
154 u64 netif_rx_dropped;
155
156 u64 link_toggle;
078086f3 157 u64 cee_toggle;
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158 u64 cee_up;
159
160 u64 rxp_info_alloc_failed;
161 u64 mbox_intr_disabled;
162 u64 mbox_intr_enabled;
163 u64 tx_unmap_q_alloc_failed;
164 u64 rx_unmap_q_alloc_failed;
165
166 u64 rxbuf_alloc_failed;
167};
168
169/* Complete driver stats */
170struct bnad_stats {
171 struct bnad_drv_stats drv_stats;
172 struct bna_stats *bna_stats;
173};
174
175/* Tx / Rx Resources */
176struct bnad_tx_res_info {
177 struct bna_res_info res_info[BNA_TX_RES_T_MAX];
178};
179
180struct bnad_rx_res_info {
181 struct bna_res_info res_info[BNA_RX_RES_T_MAX];
182};
183
184struct bnad_tx_info {
185 struct bna_tx *tx; /* 1:1 between tx_info & tx */
186 struct bna_tcb *tcb[BNAD_MAX_TXQ_PER_TX];
078086f3 187 u32 tx_id;
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188} ____cacheline_aligned;
189
190struct bnad_rx_info {
191 struct bna_rx *rx; /* 1:1 between rx_info & rx */
192
772b5235 193 struct bnad_rx_ctrl rx_ctrl[BNAD_MAX_RXP_PER_RX];
078086f3 194 u32 rx_id;
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195} ____cacheline_aligned;
196
197/* Unmap queues for Tx / Rx cleanup */
198struct bnad_skb_unmap {
199 struct sk_buff *skb;
5ea74318 200 DEFINE_DMA_UNMAP_ADDR(dma_addr);
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201};
202
203struct bnad_unmap_q {
204 u32 producer_index;
205 u32 consumer_index;
0120b99c 206 u32 q_depth;
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207 /* This should be the last one */
208 struct bnad_skb_unmap unmap_array[1];
209};
210
211/* Bit mask values for bnad->cfg_flags */
212#define BNAD_CF_DIM_ENABLED 0x01 /* DIM */
213#define BNAD_CF_PROMISC 0x02
214#define BNAD_CF_ALLMULTI 0x04
215#define BNAD_CF_MSIX 0x08 /* If in MSIx mode */
216
217/* Defines for run_flags bit-mask */
218/* Set, tested & cleared using xxx_bit() functions */
219/* Values indicated bit positions */
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220#define BNAD_RF_CEE_RUNNING 0
221#define BNAD_RF_MTU_SET 1
be7fa326 222#define BNAD_RF_MBOX_IRQ_DISABLED 2
078086f3 223#define BNAD_RF_NETDEV_REGISTERED 3
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224#define BNAD_RF_DIM_TIMER_RUNNING 4
225#define BNAD_RF_STATS_TIMER_RUNNING 5
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226#define BNAD_RF_TX_PRIO_SET 6
227
228
229/* Define for Fast Path flags */
230/* Defined as bit positions */
231#define BNAD_FP_IN_RX_PATH 0
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232
233struct bnad {
0120b99c 234 struct net_device *netdev;
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235
236 /* Data path */
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237 struct bnad_tx_info tx_info[BNAD_MAX_TX];
238 struct bnad_rx_info rx_info[BNAD_MAX_RX];
8b230ed8 239
f859d7cb 240 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
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241 /*
242 * These q numbers are global only because
243 * they are used to calculate MSIx vectors.
244 * Actually the exact # of queues are per Tx/Rx
245 * object.
246 */
247 u32 num_tx;
248 u32 num_rx;
249 u32 num_txq_per_tx;
250 u32 num_rxp_per_rx;
251
252 u32 txq_depth;
253 u32 rxq_depth;
254
255 u8 tx_coalescing_timeo;
256 u8 rx_coalescing_timeo;
257
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258 struct bna_rx_config rx_config[BNAD_MAX_RX];
259 struct bna_tx_config tx_config[BNAD_MAX_TX];
8b230ed8 260
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261 void __iomem *bar0; /* BAR0 address */
262
263 struct bna bna;
264
265 u32 cfg_flags;
266 unsigned long run_flags;
267
0120b99c 268 struct pci_dev *pcidev;
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269 u64 mmio_start;
270 u64 mmio_len;
271
272 u32 msix_num;
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273 struct msix_entry *msix_table;
274
275 struct mutex conf_mutex;
276 spinlock_t bna_lock ____cacheline_aligned;
277
278 /* Timers */
279 struct timer_list ioc_timer;
280 struct timer_list dim_timer;
281 struct timer_list stats_timer;
282
283 /* Control path resources, memory & irq */
284 struct bna_res_info res_info[BNA_RES_T_MAX];
078086f3 285 struct bna_res_info mod_res_info[BNA_MOD_RES_T_MAX];
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286 struct bnad_tx_res_info tx_res_info[BNAD_MAX_TX];
287 struct bnad_rx_res_info rx_res_info[BNAD_MAX_RX];
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288
289 struct bnad_completion bnad_completions;
290
291 /* Burnt in MAC address */
292 mac_t perm_addr;
293
294 struct tasklet_struct tx_free_tasklet;
295
296 /* Statistics */
297 struct bnad_stats stats;
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298
299 struct bnad_diag *diag;
300
301 char adapter_name[BNAD_NAME_LEN];
0120b99c 302 char port_name[BNAD_NAME_LEN];
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303 char mbox_irq_name[BNAD_NAME_LEN];
304};
305
306/*
307 * EXTERN VARIABLES
308 */
309extern struct firmware *bfi_fw;
0120b99c 310extern u32 bnad_rxqs_per_cq;
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311
312/*
313 * EXTERN PROTOTYPES
314 */
315extern u32 *cna_get_firmware_buf(struct pci_dev *pdev);
316/* Netdev entry point prototypes */
317extern void bnad_set_ethtool_ops(struct net_device *netdev);
318
319/* Configuration & setup */
320extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
321extern void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
322
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323extern int bnad_setup_rx(struct bnad *bnad, u32 rx_id);
324extern int bnad_setup_tx(struct bnad *bnad, u32 tx_id);
325extern void bnad_cleanup_tx(struct bnad *bnad, u32 tx_id);
326extern void bnad_cleanup_rx(struct bnad *bnad, u32 rx_id);
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327
328/* Timer start/stop protos */
329extern void bnad_dim_timer_start(struct bnad *bnad);
330
331/* Statistics */
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332extern void bnad_netdev_qstats_fill(struct bnad *bnad,
333 struct rtnl_link_stats64 *stats);
334extern void bnad_netdev_hwstats_fill(struct bnad *bnad,
335 struct rtnl_link_stats64 *stats);
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336
337/**
338 * MACROS
339 */
340/* To set & get the stats counters */
341#define BNAD_UPDATE_CTR(_bnad, _ctr) \
342 (((_bnad)->stats.drv_stats._ctr)++)
343
344#define BNAD_GET_CTR(_bnad, _ctr) ((_bnad)->stats.drv_stats._ctr)
345
346#define bnad_enable_rx_irq_unsafe(_ccb) \
347{ \
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348 if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) {\
349 bna_ib_coalescing_timer_set((_ccb)->i_dbell, \
350 (_ccb)->rx_coalescing_timeo); \
351 bna_ib_ack((_ccb)->i_dbell, 0); \
352 } \
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353}
354
355#define bnad_dim_timer_running(_bnad) \
0120b99c 356 (((_bnad)->cfg_flags & BNAD_CF_DIM_ENABLED) && \
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357 (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &((_bnad)->run_flags))))
358
359#endif /* __BNAD_H__ */
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