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Diffstat (limited to 'drivers/net/ethernet/brocade/bna/bnad.h')
-rw-r--r--drivers/net/ethernet/brocade/bna/bnad.h341
1 files changed, 341 insertions, 0 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
new file mode 100644
index 000000000000..458eb30371b5
--- /dev/null
+++ b/drivers/net/ethernet/brocade/bna/bnad.h
@@ -0,0 +1,341 @@
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>
27#include <linux/if_vlan.h>
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
41#define BNAD_MAX_TXS 1
42#define BNAD_MAX_TXQ_PER_TX 8 /* 8 priority queues */
43#define BNAD_TXQ_NUM 1
44
45#define BNAD_MAX_RXS 1
46#define BNAD_MAX_RXPS_PER_RX 16
47
48/*
49 * Control structure pointed to ccb->ctrl, which
50 * determines the NAPI / LRO behavior CCB
51 * There is 1:1 corres. between ccb & ctrl
52 */
53struct bnad_rx_ctrl {
54 struct bna_ccb *ccb;
55 unsigned long flags;
56 struct napi_struct napi;
57};
58
59#define BNAD_RXMODE_PROMISC_DEFAULT BNA_RXMODE_PROMISC
60
61#define BNAD_GET_TX_ID(_skb) (0)
62
63/*
64 * GLOBAL #defines (CONSTANTS)
65 */
66#define BNAD_NAME "bna"
67#define BNAD_NAME_LEN 64
68
69#define BNAD_VERSION "2.3.2.3"
70
71#define BNAD_MAILBOX_MSIX_INDEX 0
72#define BNAD_MAILBOX_MSIX_VECTORS 1
73#define BNAD_INTX_TX_IB_BITMASK 0x1
74#define BNAD_INTX_RX_IB_BITMASK 0x2
75
76#define BNAD_STATS_TIMER_FREQ 1000 /* in msecs */
77#define BNAD_DIM_TIMER_FREQ 1000 /* in msecs */
78
79#define BNAD_MAX_Q_DEPTH 0x10000
80#define BNAD_MIN_Q_DEPTH 0x200
81
82#define BNAD_JUMBO_MTU 9000
83
84#define BNAD_NETIF_WAKE_THRESHOLD 8
85
86#define BNAD_RXQ_REFILL_THRESHOLD_SHIFT 3
87
88/* Bit positions for tcb->flags */
89#define BNAD_TXQ_FREE_SENT 0
90#define BNAD_TXQ_TX_STARTED 1
91
92/* Bit positions for rcb->flags */
93#define BNAD_RXQ_REFILL 0
94#define BNAD_RXQ_STARTED 1
95
96/*
97 * DATA STRUCTURES
98 */
99
100/* enums */
101enum bnad_intr_source {
102 BNAD_INTR_TX = 1,
103 BNAD_INTR_RX = 2
104};
105
106enum bnad_link_state {
107 BNAD_LS_DOWN = 0,
108 BNAD_LS_UP = 1
109};
110
111struct bnad_completion {
112 struct completion ioc_comp;
113 struct completion ucast_comp;
114 struct completion mcast_comp;
115 struct completion tx_comp;
116 struct completion rx_comp;
117 struct completion stats_comp;
118 struct completion port_comp;
119
120 u8 ioc_comp_status;
121 u8 ucast_comp_status;
122 u8 mcast_comp_status;
123 u8 tx_comp_status;
124 u8 rx_comp_status;
125 u8 stats_comp_status;
126 u8 port_comp_status;
127};
128
129/* Tx Rx Control Stats */
130struct bnad_drv_stats {
131 u64 netif_queue_stop;
132 u64 netif_queue_wakeup;
133 u64 netif_queue_stopped;
134 u64 tso4;
135 u64 tso6;
136 u64 tso_err;
137 u64 tcpcsum_offload;
138 u64 udpcsum_offload;
139 u64 csum_help;
140 u64 csum_help_err;
141
142 u64 hw_stats_updates;
143 u64 netif_rx_schedule;
144 u64 netif_rx_complete;
145 u64 netif_rx_dropped;
146
147 u64 link_toggle;
148 u64 cee_up;
149
150 u64 rxp_info_alloc_failed;
151 u64 mbox_intr_disabled;
152 u64 mbox_intr_enabled;
153 u64 tx_unmap_q_alloc_failed;
154 u64 rx_unmap_q_alloc_failed;
155
156 u64 rxbuf_alloc_failed;
157};
158
159/* Complete driver stats */
160struct bnad_stats {
161 struct bnad_drv_stats drv_stats;
162 struct bna_stats *bna_stats;
163};
164
165/* Tx / Rx Resources */
166struct bnad_tx_res_info {
167 struct bna_res_info res_info[BNA_TX_RES_T_MAX];
168};
169
170struct bnad_rx_res_info {
171 struct bna_res_info res_info[BNA_RX_RES_T_MAX];
172};
173
174struct bnad_tx_info {
175 struct bna_tx *tx; /* 1:1 between tx_info & tx */
176 struct bna_tcb *tcb[BNAD_MAX_TXQ_PER_TX];
177} ____cacheline_aligned;
178
179struct bnad_rx_info {
180 struct bna_rx *rx; /* 1:1 between rx_info & rx */
181
182 struct bnad_rx_ctrl rx_ctrl[BNAD_MAX_RXPS_PER_RX];
183} ____cacheline_aligned;
184
185/* Unmap queues for Tx / Rx cleanup */
186struct bnad_skb_unmap {
187 struct sk_buff *skb;
188 DEFINE_DMA_UNMAP_ADDR(dma_addr);
189};
190
191struct bnad_unmap_q {
192 u32 producer_index;
193 u32 consumer_index;
194 u32 q_depth;
195 /* This should be the last one */
196 struct bnad_skb_unmap unmap_array[1];
197};
198
199/* Bit mask values for bnad->cfg_flags */
200#define BNAD_CF_DIM_ENABLED 0x01 /* DIM */
201#define BNAD_CF_PROMISC 0x02
202#define BNAD_CF_ALLMULTI 0x04
203#define BNAD_CF_MSIX 0x08 /* If in MSIx mode */
204
205/* Defines for run_flags bit-mask */
206/* Set, tested & cleared using xxx_bit() functions */
207/* Values indicated bit positions */
208#define BNAD_RF_CEE_RUNNING 1
209#define BNAD_RF_MBOX_IRQ_DISABLED 2
210#define BNAD_RF_RX_STARTED 3
211#define BNAD_RF_DIM_TIMER_RUNNING 4
212#define BNAD_RF_STATS_TIMER_RUNNING 5
213#define BNAD_RF_TX_SHUTDOWN_DELAYED 6
214#define BNAD_RF_RX_SHUTDOWN_DELAYED 7
215
216struct bnad {
217 struct net_device *netdev;
218
219 /* Data path */
220 struct bnad_tx_info tx_info[BNAD_MAX_TXS];
221 struct bnad_rx_info rx_info[BNAD_MAX_RXS];
222
223 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
224 /*
225 * These q numbers are global only because
226 * they are used to calculate MSIx vectors.
227 * Actually the exact # of queues are per Tx/Rx
228 * object.
229 */
230 u32 num_tx;
231 u32 num_rx;
232 u32 num_txq_per_tx;
233 u32 num_rxp_per_rx;
234
235 u32 txq_depth;
236 u32 rxq_depth;
237
238 u8 tx_coalescing_timeo;
239 u8 rx_coalescing_timeo;
240
241 struct bna_rx_config rx_config[BNAD_MAX_RXS];
242 struct bna_tx_config tx_config[BNAD_MAX_TXS];
243
244 void __iomem *bar0; /* BAR0 address */
245
246 struct bna bna;
247
248 u32 cfg_flags;
249 unsigned long run_flags;
250
251 struct pci_dev *pcidev;
252 u64 mmio_start;
253 u64 mmio_len;
254
255 u32 msix_num;
256 struct msix_entry *msix_table;
257
258 struct mutex conf_mutex;
259 spinlock_t bna_lock ____cacheline_aligned;
260
261 /* Timers */
262 struct timer_list ioc_timer;
263 struct timer_list dim_timer;
264 struct timer_list stats_timer;
265
266 /* Control path resources, memory & irq */
267 struct bna_res_info res_info[BNA_RES_T_MAX];
268 struct bnad_tx_res_info tx_res_info[BNAD_MAX_TXS];
269 struct bnad_rx_res_info rx_res_info[BNAD_MAX_RXS];
270
271 struct bnad_completion bnad_completions;
272
273 /* Burnt in MAC address */
274 mac_t perm_addr;
275
276 struct tasklet_struct tx_free_tasklet;
277
278 /* Statistics */
279 struct bnad_stats stats;
280
281 struct bnad_diag *diag;
282
283 char adapter_name[BNAD_NAME_LEN];
284 char port_name[BNAD_NAME_LEN];
285 char mbox_irq_name[BNAD_NAME_LEN];
286};
287
288/*
289 * EXTERN VARIABLES
290 */
291extern struct firmware *bfi_fw;
292extern u32 bnad_rxqs_per_cq;
293
294/*
295 * EXTERN PROTOTYPES
296 */
297extern u32 *cna_get_firmware_buf(struct pci_dev *pdev);
298/* Netdev entry point prototypes */
299extern void bnad_set_ethtool_ops(struct net_device *netdev);
300
301/* Configuration & setup */
302extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
303extern void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
304
305extern int bnad_setup_rx(struct bnad *bnad, uint rx_id);
306extern int bnad_setup_tx(struct bnad *bnad, uint tx_id);
307extern void bnad_cleanup_tx(struct bnad *bnad, uint tx_id);
308extern void bnad_cleanup_rx(struct bnad *bnad, uint rx_id);
309
310/* Timer start/stop protos */
311extern void bnad_dim_timer_start(struct bnad *bnad);
312
313/* Statistics */
314extern void bnad_netdev_qstats_fill(struct bnad *bnad,
315 struct rtnl_link_stats64 *stats);
316extern void bnad_netdev_hwstats_fill(struct bnad *bnad,
317 struct rtnl_link_stats64 *stats);
318
319/**
320 * MACROS
321 */
322/* To set & get the stats counters */
323#define BNAD_UPDATE_CTR(_bnad, _ctr) \
324 (((_bnad)->stats.drv_stats._ctr)++)
325
326#define BNAD_GET_CTR(_bnad, _ctr) ((_bnad)->stats.drv_stats._ctr)
327
328#define bnad_enable_rx_irq_unsafe(_ccb) \
329{ \
330 if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) {\
331 bna_ib_coalescing_timer_set((_ccb)->i_dbell, \
332 (_ccb)->rx_coalescing_timeo); \
333 bna_ib_ack((_ccb)->i_dbell, 0); \
334 } \
335}
336
337#define bnad_dim_timer_running(_bnad) \
338 (((_bnad)->cfg_flags & BNAD_CF_DIM_ENABLED) && \
339 (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &((_bnad)->run_flags))))
340
341#endif /* __BNAD_H__ */
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