xref: /OK3568_Linux_fs/kernel/drivers/scsi/bnx2fc/bnx2fc.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* bnx2fc.h: QLogic Linux FCoE offload driver.
2*4882a593Smuzhiyun  *
3*4882a593Smuzhiyun  * Copyright (c) 2008-2013 Broadcom Corporation
4*4882a593Smuzhiyun  * Copyright (c) 2014-2016 QLogic Corporation
5*4882a593Smuzhiyun  * Copyright (c) 2016-2017 Cavium Inc.
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  * This program is free software; you can redistribute it and/or modify
8*4882a593Smuzhiyun  * it under the terms of the GNU General Public License as published by
9*4882a593Smuzhiyun  * the Free Software Foundation.
10*4882a593Smuzhiyun  *
11*4882a593Smuzhiyun  * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
12*4882a593Smuzhiyun  */
13*4882a593Smuzhiyun 
14*4882a593Smuzhiyun #ifndef _BNX2FC_H_
15*4882a593Smuzhiyun #define _BNX2FC_H_
16*4882a593Smuzhiyun #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun #include <linux/module.h>
19*4882a593Smuzhiyun #include <linux/moduleparam.h>
20*4882a593Smuzhiyun #include <linux/kernel.h>
21*4882a593Smuzhiyun #include <linux/skbuff.h>
22*4882a593Smuzhiyun #include <linux/netdevice.h>
23*4882a593Smuzhiyun #include <linux/etherdevice.h>
24*4882a593Smuzhiyun #include <linux/if_ether.h>
25*4882a593Smuzhiyun #include <linux/if_vlan.h>
26*4882a593Smuzhiyun #include <linux/kthread.h>
27*4882a593Smuzhiyun #include <linux/crc32.h>
28*4882a593Smuzhiyun #include <linux/cpu.h>
29*4882a593Smuzhiyun #include <linux/types.h>
30*4882a593Smuzhiyun #include <linux/list.h>
31*4882a593Smuzhiyun #include <linux/delay.h>
32*4882a593Smuzhiyun #include <linux/timer.h>
33*4882a593Smuzhiyun #include <linux/errno.h>
34*4882a593Smuzhiyun #include <linux/pci.h>
35*4882a593Smuzhiyun #include <linux/init.h>
36*4882a593Smuzhiyun #include <linux/dma-mapping.h>
37*4882a593Smuzhiyun #include <linux/workqueue.h>
38*4882a593Smuzhiyun #include <linux/mutex.h>
39*4882a593Smuzhiyun #include <linux/spinlock.h>
40*4882a593Smuzhiyun #include <linux/bitops.h>
41*4882a593Smuzhiyun #include <linux/log2.h>
42*4882a593Smuzhiyun #include <linux/interrupt.h>
43*4882a593Smuzhiyun #include <linux/sched/signal.h>
44*4882a593Smuzhiyun #include <linux/io.h>
45*4882a593Smuzhiyun 
46*4882a593Smuzhiyun #include <scsi/scsi.h>
47*4882a593Smuzhiyun #include <scsi/scsi_host.h>
48*4882a593Smuzhiyun #include <scsi/scsi_device.h>
49*4882a593Smuzhiyun #include <scsi/scsi_cmnd.h>
50*4882a593Smuzhiyun #include <scsi/scsi_eh.h>
51*4882a593Smuzhiyun #include <scsi/scsi_tcq.h>
52*4882a593Smuzhiyun #include <scsi/libfc.h>
53*4882a593Smuzhiyun #include <scsi/libfcoe.h>
54*4882a593Smuzhiyun #include <scsi/fc_encode.h>
55*4882a593Smuzhiyun #include <scsi/scsi_transport.h>
56*4882a593Smuzhiyun #include <scsi/scsi_transport_fc.h>
57*4882a593Smuzhiyun #include <scsi/fc/fc_fip.h>
58*4882a593Smuzhiyun #include <scsi/fc/fc_fc2.h>
59*4882a593Smuzhiyun #include <scsi/fc_frame.h>
60*4882a593Smuzhiyun #include <scsi/fc/fc_fcoe.h>
61*4882a593Smuzhiyun #include <scsi/fc/fc_fcp.h>
62*4882a593Smuzhiyun 
63*4882a593Smuzhiyun #include "57xx_hsi_bnx2fc.h"
64*4882a593Smuzhiyun #include "../../net/ethernet/broadcom/cnic_if.h"
65*4882a593Smuzhiyun #include  "../../net/ethernet/broadcom/bnx2x/bnx2x_mfw_req.h"
66*4882a593Smuzhiyun #include "bnx2fc_constants.h"
67*4882a593Smuzhiyun 
68*4882a593Smuzhiyun #define BNX2FC_NAME		"bnx2fc"
69*4882a593Smuzhiyun #define BNX2FC_VERSION		"2.12.13"
70*4882a593Smuzhiyun 
71*4882a593Smuzhiyun #define PFX			"bnx2fc: "
72*4882a593Smuzhiyun 
73*4882a593Smuzhiyun #define BCM_CHIP_LEN		16
74*4882a593Smuzhiyun 
75*4882a593Smuzhiyun #define BNX2X_DOORBELL_PCI_BAR		2
76*4882a593Smuzhiyun 
77*4882a593Smuzhiyun #define BNX2FC_MAX_BD_LEN		0xffff
78*4882a593Smuzhiyun #define BNX2FC_BD_SPLIT_SZ		0xffff
79*4882a593Smuzhiyun #define BNX2FC_MAX_BDS_PER_CMD		255
80*4882a593Smuzhiyun #define BNX2FC_FW_MAX_BDS_PER_CMD	255
81*4882a593Smuzhiyun 
82*4882a593Smuzhiyun #define BNX2FC_SQ_WQES_MAX	256
83*4882a593Smuzhiyun 
84*4882a593Smuzhiyun #define BNX2FC_SCSI_MAX_SQES	((3 * BNX2FC_SQ_WQES_MAX) / 8)
85*4882a593Smuzhiyun #define BNX2FC_TM_MAX_SQES	((BNX2FC_SQ_WQES_MAX) / 2)
86*4882a593Smuzhiyun #define BNX2FC_ELS_MAX_SQES	(BNX2FC_TM_MAX_SQES - 1)
87*4882a593Smuzhiyun 
88*4882a593Smuzhiyun #define BNX2FC_RQ_WQES_MAX	16
89*4882a593Smuzhiyun #define BNX2FC_CQ_WQES_MAX	(BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
90*4882a593Smuzhiyun 
91*4882a593Smuzhiyun #define BNX2FC_NUM_MAX_SESS	1024
92*4882a593Smuzhiyun #define BNX2FC_NUM_MAX_SESS_LOG	(ilog2(BNX2FC_NUM_MAX_SESS))
93*4882a593Smuzhiyun 
94*4882a593Smuzhiyun #define BNX2FC_MAX_NPIV		256
95*4882a593Smuzhiyun 
96*4882a593Smuzhiyun #define BNX2FC_MIN_PAYLOAD		256
97*4882a593Smuzhiyun #define BNX2FC_MAX_PAYLOAD		2048
98*4882a593Smuzhiyun #define BNX2FC_MFS			\
99*4882a593Smuzhiyun 			(BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
100*4882a593Smuzhiyun #define BNX2FC_MINI_JUMBO_MTU		2500
101*4882a593Smuzhiyun 
102*4882a593Smuzhiyun 
103*4882a593Smuzhiyun #define BNX2FC_RQ_BUF_SZ		256
104*4882a593Smuzhiyun #define BNX2FC_RQ_BUF_LOG_SZ		(ilog2(BNX2FC_RQ_BUF_SZ))
105*4882a593Smuzhiyun 
106*4882a593Smuzhiyun #define BNX2FC_SQ_WQE_SIZE		(sizeof(struct fcoe_sqe))
107*4882a593Smuzhiyun #define BNX2FC_CQ_WQE_SIZE		(sizeof(struct fcoe_cqe))
108*4882a593Smuzhiyun #define BNX2FC_RQ_WQE_SIZE		(BNX2FC_RQ_BUF_SZ)
109*4882a593Smuzhiyun #define BNX2FC_XFERQ_WQE_SIZE		(sizeof(struct fcoe_xfrqe))
110*4882a593Smuzhiyun #define BNX2FC_CONFQ_WQE_SIZE		(sizeof(struct fcoe_confqe))
111*4882a593Smuzhiyun #define BNX2X_DB_SHIFT			3
112*4882a593Smuzhiyun 
113*4882a593Smuzhiyun #define BNX2FC_TASK_SIZE		128
114*4882a593Smuzhiyun #define	BNX2FC_TASKS_PER_PAGE		(PAGE_SIZE/BNX2FC_TASK_SIZE)
115*4882a593Smuzhiyun 
116*4882a593Smuzhiyun #define BNX2FC_MAX_ROWS_IN_HASH_TBL	8
117*4882a593Smuzhiyun #define BNX2FC_HASH_TBL_CHUNK_SIZE	(16 * 1024)
118*4882a593Smuzhiyun 
119*4882a593Smuzhiyun #define BNX2FC_MAX_SEQS			255
120*4882a593Smuzhiyun #define BNX2FC_MAX_RETRY_CNT		3
121*4882a593Smuzhiyun #define BNX2FC_MAX_RPORT_RETRY_CNT	255
122*4882a593Smuzhiyun 
123*4882a593Smuzhiyun #define BNX2FC_READ			(1 << 1)
124*4882a593Smuzhiyun #define BNX2FC_WRITE			(1 << 0)
125*4882a593Smuzhiyun 
126*4882a593Smuzhiyun #define BNX2FC_MIN_XID			0
127*4882a593Smuzhiyun #define FCOE_MAX_NUM_XIDS		0x2000
128*4882a593Smuzhiyun #define FCOE_MAX_XID_OFFSET		(FCOE_MAX_NUM_XIDS - 1)
129*4882a593Smuzhiyun #define FCOE_XIDS_PER_CPU_OFFSET	((512 * nr_cpu_ids) - 1)
130*4882a593Smuzhiyun #define BNX2FC_MAX_LUN			0xFFFF
131*4882a593Smuzhiyun #define BNX2FC_MAX_FCP_TGT		256
132*4882a593Smuzhiyun #define BNX2FC_MAX_CMD_LEN		16
133*4882a593Smuzhiyun 
134*4882a593Smuzhiyun #define BNX2FC_TM_TIMEOUT		60	/* secs */
135*4882a593Smuzhiyun #define BNX2FC_IO_TIMEOUT		20000UL	/* msecs */
136*4882a593Smuzhiyun 
137*4882a593Smuzhiyun #define BNX2FC_WAIT_CNT			1200
138*4882a593Smuzhiyun #define BNX2FC_FW_TIMEOUT		(3 * HZ)
139*4882a593Smuzhiyun #define PORT_MAX			2
140*4882a593Smuzhiyun 
141*4882a593Smuzhiyun #define CMD_SCSI_STATUS(Cmnd)		((Cmnd)->SCp.Status)
142*4882a593Smuzhiyun 
143*4882a593Smuzhiyun /* FC FCP Status */
144*4882a593Smuzhiyun #define	FC_GOOD				0
145*4882a593Smuzhiyun 
146*4882a593Smuzhiyun #define BNX2FC_RNID_HBA			0x7
147*4882a593Smuzhiyun 
148*4882a593Smuzhiyun #define SRR_RETRY_COUNT			5
149*4882a593Smuzhiyun #define REC_RETRY_COUNT			1
150*4882a593Smuzhiyun #define BNX2FC_NUM_ERR_BITS		63
151*4882a593Smuzhiyun 
152*4882a593Smuzhiyun #define BNX2FC_RELOGIN_WAIT_TIME	200
153*4882a593Smuzhiyun #define BNX2FC_RELOGIN_WAIT_CNT		10
154*4882a593Smuzhiyun 
155*4882a593Smuzhiyun #define BNX2FC_STATS(hba, stat, cnt)					\
156*4882a593Smuzhiyun 	do {								\
157*4882a593Smuzhiyun 		u32 val;						\
158*4882a593Smuzhiyun 									\
159*4882a593Smuzhiyun 		val = fw_stats->stat.cnt;				\
160*4882a593Smuzhiyun 		if (hba->prev_stats.stat.cnt <= val)			\
161*4882a593Smuzhiyun 			val -= hba->prev_stats.stat.cnt;		\
162*4882a593Smuzhiyun 		else							\
163*4882a593Smuzhiyun 			val += (0xfffffff - hba->prev_stats.stat.cnt);	\
164*4882a593Smuzhiyun 		hba->bfw_stats.cnt += val;				\
165*4882a593Smuzhiyun 	} while (0)
166*4882a593Smuzhiyun 
167*4882a593Smuzhiyun /* bnx2fc driver uses only one instance of fcoe_percpu_s */
168*4882a593Smuzhiyun extern struct fcoe_percpu_s bnx2fc_global;
169*4882a593Smuzhiyun 
170*4882a593Smuzhiyun extern struct workqueue_struct *bnx2fc_wq;
171*4882a593Smuzhiyun 
172*4882a593Smuzhiyun struct bnx2fc_percpu_s {
173*4882a593Smuzhiyun 	struct task_struct *iothread;
174*4882a593Smuzhiyun 	struct list_head work_list;
175*4882a593Smuzhiyun 	spinlock_t fp_work_lock;
176*4882a593Smuzhiyun };
177*4882a593Smuzhiyun 
178*4882a593Smuzhiyun struct bnx2fc_fw_stats {
179*4882a593Smuzhiyun 	u64	fc_crc_cnt;
180*4882a593Smuzhiyun 	u64	fcoe_tx_pkt_cnt;
181*4882a593Smuzhiyun 	u64	fcoe_rx_pkt_cnt;
182*4882a593Smuzhiyun 	u64	fcoe_tx_byte_cnt;
183*4882a593Smuzhiyun 	u64	fcoe_rx_byte_cnt;
184*4882a593Smuzhiyun };
185*4882a593Smuzhiyun 
186*4882a593Smuzhiyun struct bnx2fc_hba {
187*4882a593Smuzhiyun 	struct list_head list;
188*4882a593Smuzhiyun 	struct cnic_dev *cnic;
189*4882a593Smuzhiyun 	struct pci_dev *pcidev;
190*4882a593Smuzhiyun 	struct net_device *phys_dev;
191*4882a593Smuzhiyun 	unsigned long reg_with_cnic;
192*4882a593Smuzhiyun 		#define BNX2FC_CNIC_REGISTERED           1
193*4882a593Smuzhiyun 	struct bnx2fc_cmd_mgr *cmd_mgr;
194*4882a593Smuzhiyun 	spinlock_t hba_lock;
195*4882a593Smuzhiyun 	struct mutex hba_mutex;
196*4882a593Smuzhiyun 	struct mutex hba_stats_mutex;
197*4882a593Smuzhiyun 	unsigned long adapter_state;
198*4882a593Smuzhiyun 		#define ADAPTER_STATE_UP		0
199*4882a593Smuzhiyun 		#define ADAPTER_STATE_GOING_DOWN	1
200*4882a593Smuzhiyun 		#define ADAPTER_STATE_LINK_DOWN		2
201*4882a593Smuzhiyun 		#define ADAPTER_STATE_READY		3
202*4882a593Smuzhiyun 	unsigned long flags;
203*4882a593Smuzhiyun 		#define BNX2FC_FLAG_FW_INIT_DONE	0
204*4882a593Smuzhiyun 		#define BNX2FC_FLAG_DESTROY_CMPL	1
205*4882a593Smuzhiyun 	u32 next_conn_id;
206*4882a593Smuzhiyun 
207*4882a593Smuzhiyun 	/* xid resources */
208*4882a593Smuzhiyun 	u16 max_xid;
209*4882a593Smuzhiyun 	u32 max_tasks;
210*4882a593Smuzhiyun 	u32 max_outstanding_cmds;
211*4882a593Smuzhiyun 	u32 elstm_xids;
212*4882a593Smuzhiyun 
213*4882a593Smuzhiyun 	struct fcoe_task_ctx_entry **task_ctx;
214*4882a593Smuzhiyun 	dma_addr_t *task_ctx_dma;
215*4882a593Smuzhiyun 	struct regpair *task_ctx_bd_tbl;
216*4882a593Smuzhiyun 	dma_addr_t task_ctx_bd_dma;
217*4882a593Smuzhiyun 
218*4882a593Smuzhiyun 	int hash_tbl_segment_count;
219*4882a593Smuzhiyun 	void **hash_tbl_segments;
220*4882a593Smuzhiyun 	void *hash_tbl_pbl;
221*4882a593Smuzhiyun 	dma_addr_t hash_tbl_pbl_dma;
222*4882a593Smuzhiyun 	struct fcoe_t2_hash_table_entry *t2_hash_tbl;
223*4882a593Smuzhiyun 	dma_addr_t t2_hash_tbl_dma;
224*4882a593Smuzhiyun 	char *t2_hash_tbl_ptr;
225*4882a593Smuzhiyun 	dma_addr_t t2_hash_tbl_ptr_dma;
226*4882a593Smuzhiyun 
227*4882a593Smuzhiyun 	char *dummy_buffer;
228*4882a593Smuzhiyun 	dma_addr_t dummy_buf_dma;
229*4882a593Smuzhiyun 
230*4882a593Smuzhiyun 	/* Active list of offloaded sessions */
231*4882a593Smuzhiyun 	struct bnx2fc_rport **tgt_ofld_list;
232*4882a593Smuzhiyun 
233*4882a593Smuzhiyun 	/* statistics */
234*4882a593Smuzhiyun 	struct bnx2fc_fw_stats bfw_stats;
235*4882a593Smuzhiyun 	struct fcoe_statistics_params prev_stats;
236*4882a593Smuzhiyun 	struct fcoe_statistics_params *stats_buffer;
237*4882a593Smuzhiyun 	dma_addr_t stats_buf_dma;
238*4882a593Smuzhiyun 	struct completion stat_req_done;
239*4882a593Smuzhiyun 	struct fcoe_capabilities fcoe_cap;
240*4882a593Smuzhiyun 
241*4882a593Smuzhiyun 	/*destroy handling */
242*4882a593Smuzhiyun 	struct timer_list destroy_timer;
243*4882a593Smuzhiyun 	wait_queue_head_t destroy_wait;
244*4882a593Smuzhiyun 
245*4882a593Smuzhiyun 	/* linkdown handling */
246*4882a593Smuzhiyun 	wait_queue_head_t shutdown_wait;
247*4882a593Smuzhiyun 	int wait_for_link_down;
248*4882a593Smuzhiyun 	int num_ofld_sess;
249*4882a593Smuzhiyun 	struct list_head vports;
250*4882a593Smuzhiyun 
251*4882a593Smuzhiyun 	char chip_num[BCM_CHIP_LEN];
252*4882a593Smuzhiyun };
253*4882a593Smuzhiyun 
254*4882a593Smuzhiyun struct bnx2fc_interface {
255*4882a593Smuzhiyun 	struct list_head list;
256*4882a593Smuzhiyun 	unsigned long if_flags;
257*4882a593Smuzhiyun 		#define BNX2FC_CTLR_INIT_DONE		0
258*4882a593Smuzhiyun 	struct bnx2fc_hba *hba;
259*4882a593Smuzhiyun 	struct net_device *netdev;
260*4882a593Smuzhiyun 	struct packet_type fcoe_packet_type;
261*4882a593Smuzhiyun 	struct packet_type fip_packet_type;
262*4882a593Smuzhiyun 	struct workqueue_struct *timer_work_queue;
263*4882a593Smuzhiyun 	struct kref kref;
264*4882a593Smuzhiyun 	u8 vlan_enabled;
265*4882a593Smuzhiyun 	int vlan_id;
266*4882a593Smuzhiyun 	bool enabled;
267*4882a593Smuzhiyun 	u8 tm_timeout;
268*4882a593Smuzhiyun };
269*4882a593Smuzhiyun 
270*4882a593Smuzhiyun #define bnx2fc_from_ctlr(x)			\
271*4882a593Smuzhiyun 	((struct bnx2fc_interface *)((x) + 1))
272*4882a593Smuzhiyun 
273*4882a593Smuzhiyun #define bnx2fc_to_ctlr(x)					\
274*4882a593Smuzhiyun 	((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
275*4882a593Smuzhiyun 
276*4882a593Smuzhiyun struct bnx2fc_lport {
277*4882a593Smuzhiyun 	struct list_head list;
278*4882a593Smuzhiyun 	struct fc_lport *lport;
279*4882a593Smuzhiyun };
280*4882a593Smuzhiyun 
281*4882a593Smuzhiyun struct bnx2fc_cmd_mgr {
282*4882a593Smuzhiyun 	struct bnx2fc_hba *hba;
283*4882a593Smuzhiyun 	u16 next_idx;
284*4882a593Smuzhiyun 	struct list_head *free_list;
285*4882a593Smuzhiyun 	spinlock_t *free_list_lock;
286*4882a593Smuzhiyun 	struct io_bdt **io_bdt_pool;
287*4882a593Smuzhiyun 	struct bnx2fc_cmd **cmds;
288*4882a593Smuzhiyun };
289*4882a593Smuzhiyun 
290*4882a593Smuzhiyun struct bnx2fc_rport {
291*4882a593Smuzhiyun 	struct fcoe_port *port;
292*4882a593Smuzhiyun 	struct fc_rport *rport;
293*4882a593Smuzhiyun 	struct fc_rport_priv *rdata;
294*4882a593Smuzhiyun 	void __iomem *ctx_base;
295*4882a593Smuzhiyun #define DPM_TRIGER_TYPE		0x40
296*4882a593Smuzhiyun 	u32 io_timeout;
297*4882a593Smuzhiyun 	u32 fcoe_conn_id;
298*4882a593Smuzhiyun 	u32 context_id;
299*4882a593Smuzhiyun 	u32 sid;
300*4882a593Smuzhiyun 	int dev_type;
301*4882a593Smuzhiyun 
302*4882a593Smuzhiyun 	unsigned long flags;
303*4882a593Smuzhiyun #define BNX2FC_FLAG_SESSION_READY	0x1
304*4882a593Smuzhiyun #define BNX2FC_FLAG_OFFLOADED		0x2
305*4882a593Smuzhiyun #define BNX2FC_FLAG_DISABLED		0x3
306*4882a593Smuzhiyun #define BNX2FC_FLAG_DESTROYED		0x4
307*4882a593Smuzhiyun #define BNX2FC_FLAG_OFLD_REQ_CMPL	0x5
308*4882a593Smuzhiyun #define BNX2FC_FLAG_CTX_ALLOC_FAILURE	0x6
309*4882a593Smuzhiyun #define BNX2FC_FLAG_UPLD_REQ_COMPL	0x7
310*4882a593Smuzhiyun #define BNX2FC_FLAG_DISABLE_FAILED	0x9
311*4882a593Smuzhiyun #define BNX2FC_FLAG_ENABLED		0xa
312*4882a593Smuzhiyun 
313*4882a593Smuzhiyun 	u8 src_addr[ETH_ALEN];
314*4882a593Smuzhiyun 	u32 max_sqes;
315*4882a593Smuzhiyun 	u32 max_rqes;
316*4882a593Smuzhiyun 	u32 max_cqes;
317*4882a593Smuzhiyun 	atomic_t free_sqes;
318*4882a593Smuzhiyun 
319*4882a593Smuzhiyun 	struct b577xx_doorbell_set_prod sq_db;
320*4882a593Smuzhiyun 	struct b577xx_fcoe_rx_doorbell rx_db;
321*4882a593Smuzhiyun 
322*4882a593Smuzhiyun 	struct fcoe_sqe *sq;
323*4882a593Smuzhiyun 	dma_addr_t sq_dma;
324*4882a593Smuzhiyun 	u16 sq_prod_idx;
325*4882a593Smuzhiyun 	u8 sq_curr_toggle_bit;
326*4882a593Smuzhiyun 	u32 sq_mem_size;
327*4882a593Smuzhiyun 
328*4882a593Smuzhiyun 	struct fcoe_cqe *cq;
329*4882a593Smuzhiyun 	dma_addr_t cq_dma;
330*4882a593Smuzhiyun 	u16 cq_cons_idx;
331*4882a593Smuzhiyun 	u8 cq_curr_toggle_bit;
332*4882a593Smuzhiyun 	u32 cq_mem_size;
333*4882a593Smuzhiyun 
334*4882a593Smuzhiyun 	void *rq;
335*4882a593Smuzhiyun 	dma_addr_t rq_dma;
336*4882a593Smuzhiyun 	u32 rq_prod_idx;
337*4882a593Smuzhiyun 	u32 rq_cons_idx;
338*4882a593Smuzhiyun 	u32 rq_mem_size;
339*4882a593Smuzhiyun 
340*4882a593Smuzhiyun 	void *rq_pbl;
341*4882a593Smuzhiyun 	dma_addr_t rq_pbl_dma;
342*4882a593Smuzhiyun 	u32 rq_pbl_size;
343*4882a593Smuzhiyun 
344*4882a593Smuzhiyun 	struct fcoe_xfrqe *xferq;
345*4882a593Smuzhiyun 	dma_addr_t xferq_dma;
346*4882a593Smuzhiyun 	u32 xferq_mem_size;
347*4882a593Smuzhiyun 
348*4882a593Smuzhiyun 	struct fcoe_confqe *confq;
349*4882a593Smuzhiyun 	dma_addr_t confq_dma;
350*4882a593Smuzhiyun 	u32 confq_mem_size;
351*4882a593Smuzhiyun 
352*4882a593Smuzhiyun 	void *confq_pbl;
353*4882a593Smuzhiyun 	dma_addr_t confq_pbl_dma;
354*4882a593Smuzhiyun 	u32 confq_pbl_size;
355*4882a593Smuzhiyun 
356*4882a593Smuzhiyun 	struct fcoe_conn_db *conn_db;
357*4882a593Smuzhiyun 	dma_addr_t conn_db_dma;
358*4882a593Smuzhiyun 	u32 conn_db_mem_size;
359*4882a593Smuzhiyun 
360*4882a593Smuzhiyun 	struct fcoe_sqe *lcq;
361*4882a593Smuzhiyun 	dma_addr_t lcq_dma;
362*4882a593Smuzhiyun 	u32 lcq_mem_size;
363*4882a593Smuzhiyun 
364*4882a593Smuzhiyun 	void *ofld_req[4];
365*4882a593Smuzhiyun 	dma_addr_t ofld_req_dma[4];
366*4882a593Smuzhiyun 	void *enbl_req;
367*4882a593Smuzhiyun 	dma_addr_t enbl_req_dma;
368*4882a593Smuzhiyun 
369*4882a593Smuzhiyun 	spinlock_t tgt_lock;
370*4882a593Smuzhiyun 	spinlock_t cq_lock;
371*4882a593Smuzhiyun 	atomic_t num_active_ios;
372*4882a593Smuzhiyun 	u32 flush_in_prog;
373*4882a593Smuzhiyun 	unsigned long timestamp;
374*4882a593Smuzhiyun 	unsigned long retry_delay_timestamp;
375*4882a593Smuzhiyun 	struct list_head free_task_list;
376*4882a593Smuzhiyun 	struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
377*4882a593Smuzhiyun 	struct list_head active_cmd_queue;
378*4882a593Smuzhiyun 	struct list_head els_queue;
379*4882a593Smuzhiyun 	struct list_head io_retire_queue;
380*4882a593Smuzhiyun 	struct list_head active_tm_queue;
381*4882a593Smuzhiyun 
382*4882a593Smuzhiyun 	struct timer_list ofld_timer;
383*4882a593Smuzhiyun 	wait_queue_head_t ofld_wait;
384*4882a593Smuzhiyun 
385*4882a593Smuzhiyun 	struct timer_list upld_timer;
386*4882a593Smuzhiyun 	wait_queue_head_t upld_wait;
387*4882a593Smuzhiyun };
388*4882a593Smuzhiyun 
389*4882a593Smuzhiyun struct bnx2fc_mp_req {
390*4882a593Smuzhiyun 	u8 tm_flags;
391*4882a593Smuzhiyun 
392*4882a593Smuzhiyun 	u32 req_len;
393*4882a593Smuzhiyun 	void *req_buf;
394*4882a593Smuzhiyun 	dma_addr_t req_buf_dma;
395*4882a593Smuzhiyun 	struct fcoe_bd_ctx *mp_req_bd;
396*4882a593Smuzhiyun 	dma_addr_t mp_req_bd_dma;
397*4882a593Smuzhiyun 	struct fc_frame_header req_fc_hdr;
398*4882a593Smuzhiyun 
399*4882a593Smuzhiyun 	u32 resp_len;
400*4882a593Smuzhiyun 	void *resp_buf;
401*4882a593Smuzhiyun 	dma_addr_t resp_buf_dma;
402*4882a593Smuzhiyun 	struct fcoe_bd_ctx *mp_resp_bd;
403*4882a593Smuzhiyun 	dma_addr_t mp_resp_bd_dma;
404*4882a593Smuzhiyun 	struct fc_frame_header resp_fc_hdr;
405*4882a593Smuzhiyun };
406*4882a593Smuzhiyun 
407*4882a593Smuzhiyun struct bnx2fc_els_cb_arg {
408*4882a593Smuzhiyun 	struct bnx2fc_cmd *aborted_io_req;
409*4882a593Smuzhiyun 	struct bnx2fc_cmd *io_req;
410*4882a593Smuzhiyun 	u16 l2_oxid;
411*4882a593Smuzhiyun 	u32 offset;
412*4882a593Smuzhiyun 	enum fc_rctl r_ctl;
413*4882a593Smuzhiyun };
414*4882a593Smuzhiyun 
415*4882a593Smuzhiyun /* bnx2fc command structure */
416*4882a593Smuzhiyun struct bnx2fc_cmd {
417*4882a593Smuzhiyun 	struct list_head link;
418*4882a593Smuzhiyun 	u8 on_active_queue;
419*4882a593Smuzhiyun 	u8 on_tmf_queue;
420*4882a593Smuzhiyun 	u8 cmd_type;
421*4882a593Smuzhiyun #define BNX2FC_SCSI_CMD		1
422*4882a593Smuzhiyun #define BNX2FC_TASK_MGMT_CMD		2
423*4882a593Smuzhiyun #define BNX2FC_ABTS			3
424*4882a593Smuzhiyun #define BNX2FC_ELS			4
425*4882a593Smuzhiyun #define BNX2FC_CLEANUP			5
426*4882a593Smuzhiyun #define BNX2FC_SEQ_CLEANUP		6
427*4882a593Smuzhiyun 	u8 io_req_flags;
428*4882a593Smuzhiyun 	struct kref refcount;
429*4882a593Smuzhiyun 	struct fcoe_port *port;
430*4882a593Smuzhiyun 	struct bnx2fc_rport *tgt;
431*4882a593Smuzhiyun 	struct scsi_cmnd *sc_cmd;
432*4882a593Smuzhiyun 	struct bnx2fc_cmd_mgr *cmd_mgr;
433*4882a593Smuzhiyun 	struct bnx2fc_mp_req mp_req;
434*4882a593Smuzhiyun 	void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
435*4882a593Smuzhiyun 	struct bnx2fc_els_cb_arg *cb_arg;
436*4882a593Smuzhiyun 	struct delayed_work timeout_work; /* timer for ULP timeouts */
437*4882a593Smuzhiyun 	struct completion abts_done;
438*4882a593Smuzhiyun 	struct completion cleanup_done;
439*4882a593Smuzhiyun 	int wait_for_abts_comp;
440*4882a593Smuzhiyun 	int wait_for_cleanup_comp;
441*4882a593Smuzhiyun 	u16 xid;
442*4882a593Smuzhiyun 	struct fcoe_err_report_entry err_entry;
443*4882a593Smuzhiyun 	struct fcoe_task_ctx_entry *task;
444*4882a593Smuzhiyun 	struct io_bdt *bd_tbl;
445*4882a593Smuzhiyun 	struct fcp_rsp *rsp;
446*4882a593Smuzhiyun 	size_t data_xfer_len;
447*4882a593Smuzhiyun 	unsigned long req_flags;
448*4882a593Smuzhiyun #define BNX2FC_FLAG_ISSUE_RRQ		0x1
449*4882a593Smuzhiyun #define BNX2FC_FLAG_ISSUE_ABTS		0x2
450*4882a593Smuzhiyun #define BNX2FC_FLAG_ABTS_DONE		0x3
451*4882a593Smuzhiyun #define BNX2FC_FLAG_TM_COMPL		0x4
452*4882a593Smuzhiyun #define BNX2FC_FLAG_TM_TIMEOUT		0x5
453*4882a593Smuzhiyun #define BNX2FC_FLAG_IO_CLEANUP		0x6
454*4882a593Smuzhiyun #define BNX2FC_FLAG_RETIRE_OXID		0x7
455*4882a593Smuzhiyun #define	BNX2FC_FLAG_EH_ABORT		0x8
456*4882a593Smuzhiyun #define BNX2FC_FLAG_IO_COMPL		0x9
457*4882a593Smuzhiyun #define BNX2FC_FLAG_ELS_DONE		0xa
458*4882a593Smuzhiyun #define BNX2FC_FLAG_ELS_TIMEOUT		0xb
459*4882a593Smuzhiyun #define BNX2FC_FLAG_CMD_LOST		0xc
460*4882a593Smuzhiyun #define BNX2FC_FLAG_SRR_SENT		0xd
461*4882a593Smuzhiyun #define BNX2FC_FLAG_ISSUE_CLEANUP_REQ	0xe
462*4882a593Smuzhiyun 	u8 rec_retry;
463*4882a593Smuzhiyun 	u8 srr_retry;
464*4882a593Smuzhiyun 	u32 srr_offset;
465*4882a593Smuzhiyun 	u8 srr_rctl;
466*4882a593Smuzhiyun 	u32 fcp_resid;
467*4882a593Smuzhiyun 	u32 fcp_rsp_len;
468*4882a593Smuzhiyun 	u32 fcp_sns_len;
469*4882a593Smuzhiyun 	u8 cdb_status; /* SCSI IO status */
470*4882a593Smuzhiyun 	u8 fcp_status; /* FCP IO status */
471*4882a593Smuzhiyun 	u8 fcp_rsp_code;
472*4882a593Smuzhiyun 	u8 scsi_comp_flags;
473*4882a593Smuzhiyun };
474*4882a593Smuzhiyun 
475*4882a593Smuzhiyun struct io_bdt {
476*4882a593Smuzhiyun 	struct bnx2fc_cmd *io_req;
477*4882a593Smuzhiyun 	struct fcoe_bd_ctx *bd_tbl;
478*4882a593Smuzhiyun 	dma_addr_t bd_tbl_dma;
479*4882a593Smuzhiyun 	u16 bd_valid;
480*4882a593Smuzhiyun };
481*4882a593Smuzhiyun 
482*4882a593Smuzhiyun struct bnx2fc_work {
483*4882a593Smuzhiyun 	struct list_head list;
484*4882a593Smuzhiyun 	struct bnx2fc_rport *tgt;
485*4882a593Smuzhiyun 	struct fcoe_task_ctx_entry *task;
486*4882a593Smuzhiyun 	unsigned char rq_data[BNX2FC_RQ_BUF_SZ];
487*4882a593Smuzhiyun 	u16 wqe;
488*4882a593Smuzhiyun 	u8 num_rq;
489*4882a593Smuzhiyun };
490*4882a593Smuzhiyun struct bnx2fc_unsol_els {
491*4882a593Smuzhiyun 	struct fc_lport *lport;
492*4882a593Smuzhiyun 	struct fc_frame *fp;
493*4882a593Smuzhiyun 	struct bnx2fc_hba *hba;
494*4882a593Smuzhiyun 	struct work_struct unsol_els_work;
495*4882a593Smuzhiyun };
496*4882a593Smuzhiyun 
497*4882a593Smuzhiyun 
498*4882a593Smuzhiyun 
499*4882a593Smuzhiyun struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
500*4882a593Smuzhiyun struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
501*4882a593Smuzhiyun void bnx2fc_cmd_release(struct kref *ref);
502*4882a593Smuzhiyun int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
503*4882a593Smuzhiyun int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
504*4882a593Smuzhiyun int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
505*4882a593Smuzhiyun int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
506*4882a593Smuzhiyun 					struct bnx2fc_rport *tgt);
507*4882a593Smuzhiyun int bnx2fc_send_session_enable_req(struct fcoe_port *port,
508*4882a593Smuzhiyun 					struct bnx2fc_rport *tgt);
509*4882a593Smuzhiyun int bnx2fc_send_session_disable_req(struct fcoe_port *port,
510*4882a593Smuzhiyun 				    struct bnx2fc_rport *tgt);
511*4882a593Smuzhiyun int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
512*4882a593Smuzhiyun 					struct bnx2fc_rport *tgt);
513*4882a593Smuzhiyun int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
514*4882a593Smuzhiyun void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
515*4882a593Smuzhiyun 					u32 num_cqe);
516*4882a593Smuzhiyun int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
517*4882a593Smuzhiyun void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
518*4882a593Smuzhiyun int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
519*4882a593Smuzhiyun void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
520*4882a593Smuzhiyun struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba);
521*4882a593Smuzhiyun void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
522*4882a593Smuzhiyun void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
523*4882a593Smuzhiyun char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
524*4882a593Smuzhiyun void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
525*4882a593Smuzhiyun int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
526*4882a593Smuzhiyun int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
527*4882a593Smuzhiyun int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
528*4882a593Smuzhiyun int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
529*4882a593Smuzhiyun int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
530*4882a593Smuzhiyun int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
531*4882a593Smuzhiyun int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
532*4882a593Smuzhiyun void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
533*4882a593Smuzhiyun 			  unsigned int timer_msec);
534*4882a593Smuzhiyun int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
535*4882a593Smuzhiyun void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
536*4882a593Smuzhiyun 			      struct fcoe_task_ctx_entry *task,
537*4882a593Smuzhiyun 			      u16 orig_xid);
538*4882a593Smuzhiyun void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req,
539*4882a593Smuzhiyun 				  struct fcoe_task_ctx_entry *task,
540*4882a593Smuzhiyun 				  struct bnx2fc_cmd *orig_io_req,
541*4882a593Smuzhiyun 				  u32 offset);
542*4882a593Smuzhiyun void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
543*4882a593Smuzhiyun 			 struct fcoe_task_ctx_entry *task);
544*4882a593Smuzhiyun void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
545*4882a593Smuzhiyun 			     struct fcoe_task_ctx_entry *task);
546*4882a593Smuzhiyun void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
547*4882a593Smuzhiyun void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
548*4882a593Smuzhiyun int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
549*4882a593Smuzhiyun int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
550*4882a593Smuzhiyun int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
551*4882a593Smuzhiyun void bnx2fc_rport_event_handler(struct fc_lport *lport,
552*4882a593Smuzhiyun 				struct fc_rport_priv *rport,
553*4882a593Smuzhiyun 				enum fc_rport_event event);
554*4882a593Smuzhiyun void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
555*4882a593Smuzhiyun 				   struct fcoe_task_ctx_entry *task,
556*4882a593Smuzhiyun 				   u8 num_rq, unsigned char *rq_data);
557*4882a593Smuzhiyun void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
558*4882a593Smuzhiyun 			       struct fcoe_task_ctx_entry *task,
559*4882a593Smuzhiyun 			       u8 num_rq);
560*4882a593Smuzhiyun void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
561*4882a593Smuzhiyun 			       struct fcoe_task_ctx_entry *task,
562*4882a593Smuzhiyun 			       u8 num_rq);
563*4882a593Smuzhiyun void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
564*4882a593Smuzhiyun 			     struct fcoe_task_ctx_entry *task,
565*4882a593Smuzhiyun 			     u8 num_rq, unsigned char *rq_data);
566*4882a593Smuzhiyun void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
567*4882a593Smuzhiyun 			      struct fcoe_task_ctx_entry *task,
568*4882a593Smuzhiyun 			      u8 num_rq);
569*4882a593Smuzhiyun void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
570*4882a593Smuzhiyun 			   struct fcp_cmnd *fcp_cmnd);
571*4882a593Smuzhiyun 
572*4882a593Smuzhiyun 
573*4882a593Smuzhiyun 
574*4882a593Smuzhiyun void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
575*4882a593Smuzhiyun struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
576*4882a593Smuzhiyun 				      struct fc_frame *fp, unsigned int op,
577*4882a593Smuzhiyun 				      void (*resp)(struct fc_seq *,
578*4882a593Smuzhiyun 						   struct fc_frame *,
579*4882a593Smuzhiyun 						   void *),
580*4882a593Smuzhiyun 				      void *arg, u32 timeout);
581*4882a593Smuzhiyun void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
582*4882a593Smuzhiyun int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
583*4882a593Smuzhiyun void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe,
584*4882a593Smuzhiyun 			     unsigned char *rq_data, u8 num_rq,
585*4882a593Smuzhiyun 			     struct fcoe_task_ctx_entry *task);
586*4882a593Smuzhiyun struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
587*4882a593Smuzhiyun 					     u32 port_id);
588*4882a593Smuzhiyun void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
589*4882a593Smuzhiyun 				   unsigned char *buf,
590*4882a593Smuzhiyun 				   u32 frame_len, u16 l2_oxid);
591*4882a593Smuzhiyun int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
592*4882a593Smuzhiyun int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
593*4882a593Smuzhiyun int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
594*4882a593Smuzhiyun int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
595*4882a593Smuzhiyun void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,
596*4882a593Smuzhiyun 				      struct fcoe_task_ctx_entry *task,
597*4882a593Smuzhiyun 				      u8 rx_state);
598*4882a593Smuzhiyun int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
599*4882a593Smuzhiyun 				enum fc_rctl r_ctl);
600*4882a593Smuzhiyun 
601*4882a593Smuzhiyun 
602*4882a593Smuzhiyun #include "bnx2fc_debug.h"
603*4882a593Smuzhiyun 
604*4882a593Smuzhiyun #endif
605