xref: /OK3568_Linux_fs/kernel/drivers/scsi/qedf/qedf.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  QLogic FCoE Offload Driver
4*4882a593Smuzhiyun  *  Copyright (c) 2016-2018 Cavium Inc.
5*4882a593Smuzhiyun  */
6*4882a593Smuzhiyun #ifndef _QEDFC_H_
7*4882a593Smuzhiyun #define _QEDFC_H_
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <scsi/libfcoe.h>
10*4882a593Smuzhiyun #include <scsi/libfc.h>
11*4882a593Smuzhiyun #include <scsi/fc/fc_fip.h>
12*4882a593Smuzhiyun #include <scsi/fc/fc_fc2.h>
13*4882a593Smuzhiyun #include <scsi/scsi_tcq.h>
14*4882a593Smuzhiyun #include <scsi/fc_encode.h>
15*4882a593Smuzhiyun #include <linux/version.h>
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun /* qedf_hsi.h needs to before included any qed includes */
19*4882a593Smuzhiyun #include "qedf_hsi.h"
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun #include <linux/qed/qed_if.h>
22*4882a593Smuzhiyun #include <linux/qed/qed_fcoe_if.h>
23*4882a593Smuzhiyun #include <linux/qed/qed_ll2_if.h>
24*4882a593Smuzhiyun #include "qedf_version.h"
25*4882a593Smuzhiyun #include "qedf_dbg.h"
26*4882a593Smuzhiyun #include "drv_fcoe_fw_funcs.h"
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun /* Helpers to extract upper and lower 32-bits of pointer */
29*4882a593Smuzhiyun #define U64_HI(val) ((u32)(((u64)(val)) >> 32))
30*4882a593Smuzhiyun #define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))
31*4882a593Smuzhiyun 
32*4882a593Smuzhiyun #define QEDF_DESCR "QLogic FCoE Offload Driver"
33*4882a593Smuzhiyun #define QEDF_MODULE_NAME "qedf"
34*4882a593Smuzhiyun 
35*4882a593Smuzhiyun #define QEDF_FLOGI_RETRY_CNT	3
36*4882a593Smuzhiyun #define QEDF_RPORT_RETRY_CNT	255
37*4882a593Smuzhiyun #define QEDF_MAX_SESSIONS	1024
38*4882a593Smuzhiyun #define QEDF_MAX_PAYLOAD	2048
39*4882a593Smuzhiyun #define QEDF_MAX_BDS_PER_CMD	256
40*4882a593Smuzhiyun #define QEDF_MAX_BD_LEN		0xffff
41*4882a593Smuzhiyun #define QEDF_BD_SPLIT_SZ	0x1000
42*4882a593Smuzhiyun #define QEDF_PAGE_SIZE		4096
43*4882a593Smuzhiyun #define QED_HW_DMA_BOUNDARY     0xfff
44*4882a593Smuzhiyun #define QEDF_MAX_SGLEN_FOR_CACHESGL		((1U << 16) - 1)
45*4882a593Smuzhiyun #define QEDF_MFS		(QEDF_MAX_PAYLOAD + \
46*4882a593Smuzhiyun 	sizeof(struct fc_frame_header))
47*4882a593Smuzhiyun #define QEDF_MAX_NPIV		64
48*4882a593Smuzhiyun #define QEDF_TM_TIMEOUT		10
49*4882a593Smuzhiyun #define QEDF_ABORT_TIMEOUT	(10 * 1000)
50*4882a593Smuzhiyun #define QEDF_CLEANUP_TIMEOUT	1
51*4882a593Smuzhiyun #define QEDF_MAX_CDB_LEN	16
52*4882a593Smuzhiyun #define QEDF_LL2_BUF_SIZE	2500	/* Buffer size required for LL2 Rx */
53*4882a593Smuzhiyun 
54*4882a593Smuzhiyun #define UPSTREAM_REMOVE		1
55*4882a593Smuzhiyun #define UPSTREAM_KEEP		1
56*4882a593Smuzhiyun 
57*4882a593Smuzhiyun struct qedf_mp_req {
58*4882a593Smuzhiyun 	uint32_t req_len;
59*4882a593Smuzhiyun 	void *req_buf;
60*4882a593Smuzhiyun 	dma_addr_t req_buf_dma;
61*4882a593Smuzhiyun 	struct scsi_sge *mp_req_bd;
62*4882a593Smuzhiyun 	dma_addr_t mp_req_bd_dma;
63*4882a593Smuzhiyun 	struct fc_frame_header req_fc_hdr;
64*4882a593Smuzhiyun 
65*4882a593Smuzhiyun 	uint32_t resp_len;
66*4882a593Smuzhiyun 	void *resp_buf;
67*4882a593Smuzhiyun 	dma_addr_t resp_buf_dma;
68*4882a593Smuzhiyun 	struct scsi_sge *mp_resp_bd;
69*4882a593Smuzhiyun 	dma_addr_t mp_resp_bd_dma;
70*4882a593Smuzhiyun 	struct fc_frame_header resp_fc_hdr;
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun 
73*4882a593Smuzhiyun struct qedf_els_cb_arg {
74*4882a593Smuzhiyun 	struct qedf_ioreq *aborted_io_req;
75*4882a593Smuzhiyun 	struct qedf_ioreq *io_req;
76*4882a593Smuzhiyun 	u8 op; /* Used to keep track of ELS op */
77*4882a593Smuzhiyun 	uint16_t l2_oxid;
78*4882a593Smuzhiyun 	u32 offset; /* Used for sequence cleanup */
79*4882a593Smuzhiyun 	u8 r_ctl; /* Used for sequence cleanup */
80*4882a593Smuzhiyun };
81*4882a593Smuzhiyun 
82*4882a593Smuzhiyun enum qedf_ioreq_event {
83*4882a593Smuzhiyun 	QEDF_IOREQ_EV_NONE,
84*4882a593Smuzhiyun 	QEDF_IOREQ_EV_ABORT_SUCCESS,
85*4882a593Smuzhiyun 	QEDF_IOREQ_EV_ABORT_FAILED,
86*4882a593Smuzhiyun 	QEDF_IOREQ_EV_SEND_RRQ,
87*4882a593Smuzhiyun 	QEDF_IOREQ_EV_ELS_TMO,
88*4882a593Smuzhiyun 	QEDF_IOREQ_EV_ELS_ERR_DETECT,
89*4882a593Smuzhiyun 	QEDF_IOREQ_EV_ELS_FLUSH,
90*4882a593Smuzhiyun 	QEDF_IOREQ_EV_CLEANUP_SUCCESS,
91*4882a593Smuzhiyun 	QEDF_IOREQ_EV_CLEANUP_FAILED,
92*4882a593Smuzhiyun };
93*4882a593Smuzhiyun 
94*4882a593Smuzhiyun #define FC_GOOD		0
95*4882a593Smuzhiyun #define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER	(0x1<<2)
96*4882a593Smuzhiyun #define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER	(0x1<<3)
97*4882a593Smuzhiyun #define CMD_SCSI_STATUS(Cmnd)			((Cmnd)->SCp.Status)
98*4882a593Smuzhiyun #define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID	(0x1<<0)
99*4882a593Smuzhiyun #define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID	(0x1<<1)
100*4882a593Smuzhiyun struct qedf_ioreq {
101*4882a593Smuzhiyun 	struct list_head link;
102*4882a593Smuzhiyun 	uint16_t xid;
103*4882a593Smuzhiyun 	struct scsi_cmnd *sc_cmd;
104*4882a593Smuzhiyun #define QEDF_SCSI_CMD		1
105*4882a593Smuzhiyun #define QEDF_TASK_MGMT_CMD	2
106*4882a593Smuzhiyun #define QEDF_ABTS		3
107*4882a593Smuzhiyun #define QEDF_ELS		4
108*4882a593Smuzhiyun #define QEDF_CLEANUP		5
109*4882a593Smuzhiyun #define QEDF_SEQ_CLEANUP	6
110*4882a593Smuzhiyun 	u8 cmd_type;
111*4882a593Smuzhiyun #define QEDF_CMD_OUTSTANDING		0x0
112*4882a593Smuzhiyun #define QEDF_CMD_IN_ABORT		0x1
113*4882a593Smuzhiyun #define QEDF_CMD_IN_CLEANUP		0x2
114*4882a593Smuzhiyun #define QEDF_CMD_SRR_SENT		0x3
115*4882a593Smuzhiyun #define QEDF_CMD_DIRTY			0x4
116*4882a593Smuzhiyun #define QEDF_CMD_ERR_SCSI_DONE		0x5
117*4882a593Smuzhiyun 	u8 io_req_flags;
118*4882a593Smuzhiyun 	uint8_t tm_flags;
119*4882a593Smuzhiyun 	struct qedf_rport *fcport;
120*4882a593Smuzhiyun #define	QEDF_CMD_ST_INACTIVE		0
121*4882a593Smuzhiyun #define	QEDFC_CMD_ST_IO_ACTIVE		1
122*4882a593Smuzhiyun #define	QEDFC_CMD_ST_ABORT_ACTIVE	2
123*4882a593Smuzhiyun #define	QEDFC_CMD_ST_ABORT_ACTIVE_EH	3
124*4882a593Smuzhiyun #define	QEDFC_CMD_ST_CLEANUP_ACTIVE	4
125*4882a593Smuzhiyun #define	QEDFC_CMD_ST_CLEANUP_ACTIVE_EH	5
126*4882a593Smuzhiyun #define	QEDFC_CMD_ST_RRQ_ACTIVE		6
127*4882a593Smuzhiyun #define	QEDFC_CMD_ST_RRQ_WAIT		7
128*4882a593Smuzhiyun #define	QEDFC_CMD_ST_OXID_RETIRE_WAIT	8
129*4882a593Smuzhiyun #define	QEDFC_CMD_ST_TMF_ACTIVE		9
130*4882a593Smuzhiyun #define	QEDFC_CMD_ST_DRAIN_ACTIVE	10
131*4882a593Smuzhiyun #define	QEDFC_CMD_ST_CLEANED		11
132*4882a593Smuzhiyun #define	QEDFC_CMD_ST_ELS_ACTIVE		12
133*4882a593Smuzhiyun 	atomic_t state;
134*4882a593Smuzhiyun 	unsigned long flags;
135*4882a593Smuzhiyun 	enum qedf_ioreq_event event;
136*4882a593Smuzhiyun 	size_t data_xfer_len;
137*4882a593Smuzhiyun 	/* ID: 001: Alloc cmd (qedf_alloc_cmd) */
138*4882a593Smuzhiyun 	/* ID: 002: Initiate ABTS (qedf_initiate_abts) */
139*4882a593Smuzhiyun 	/* ID: 003: For RRQ (qedf_process_abts_compl) */
140*4882a593Smuzhiyun 	struct kref refcount;
141*4882a593Smuzhiyun 	struct qedf_cmd_mgr *cmd_mgr;
142*4882a593Smuzhiyun 	struct io_bdt *bd_tbl;
143*4882a593Smuzhiyun 	struct delayed_work timeout_work;
144*4882a593Smuzhiyun 	struct completion tm_done;
145*4882a593Smuzhiyun 	struct completion abts_done;
146*4882a593Smuzhiyun 	struct completion cleanup_done;
147*4882a593Smuzhiyun 	struct e4_fcoe_task_context *task;
148*4882a593Smuzhiyun 	struct fcoe_task_params *task_params;
149*4882a593Smuzhiyun 	struct scsi_sgl_task_params *sgl_task_params;
150*4882a593Smuzhiyun 	int idx;
151*4882a593Smuzhiyun 	int lun;
152*4882a593Smuzhiyun /*
153*4882a593Smuzhiyun  * Need to allocate enough room for both sense data and FCP response data
154*4882a593Smuzhiyun  * which has a max length of 8 bytes according to spec.
155*4882a593Smuzhiyun  */
156*4882a593Smuzhiyun #define QEDF_SCSI_SENSE_BUFFERSIZE	(SCSI_SENSE_BUFFERSIZE + 8)
157*4882a593Smuzhiyun 	uint8_t *sense_buffer;
158*4882a593Smuzhiyun 	dma_addr_t sense_buffer_dma;
159*4882a593Smuzhiyun 	u32 fcp_resid;
160*4882a593Smuzhiyun 	u32 fcp_rsp_len;
161*4882a593Smuzhiyun 	u32 fcp_sns_len;
162*4882a593Smuzhiyun 	u8 cdb_status;
163*4882a593Smuzhiyun 	u8 fcp_status;
164*4882a593Smuzhiyun 	u8 fcp_rsp_code;
165*4882a593Smuzhiyun 	u8 scsi_comp_flags;
166*4882a593Smuzhiyun #define QEDF_MAX_REUSE		0xfff
167*4882a593Smuzhiyun 	u16 reuse_count;
168*4882a593Smuzhiyun 	struct qedf_mp_req mp_req;
169*4882a593Smuzhiyun 	void (*cb_func)(struct qedf_els_cb_arg *cb_arg);
170*4882a593Smuzhiyun 	struct qedf_els_cb_arg *cb_arg;
171*4882a593Smuzhiyun 	int fp_idx;
172*4882a593Smuzhiyun 	unsigned int cpu;
173*4882a593Smuzhiyun 	unsigned int int_cpu;
174*4882a593Smuzhiyun #define QEDF_IOREQ_UNKNOWN_SGE		1
175*4882a593Smuzhiyun #define QEDF_IOREQ_SLOW_SGE		2
176*4882a593Smuzhiyun #define QEDF_IOREQ_FAST_SGE		3
177*4882a593Smuzhiyun 	u8 sge_type;
178*4882a593Smuzhiyun 	struct delayed_work rrq_work;
179*4882a593Smuzhiyun 
180*4882a593Smuzhiyun 	/* Used for sequence level recovery; i.e. REC/SRR */
181*4882a593Smuzhiyun 	uint32_t rx_buf_off;
182*4882a593Smuzhiyun 	uint32_t tx_buf_off;
183*4882a593Smuzhiyun 	uint32_t rx_id;
184*4882a593Smuzhiyun 	uint32_t task_retry_identifier;
185*4882a593Smuzhiyun 
186*4882a593Smuzhiyun 	/*
187*4882a593Smuzhiyun 	 * Used to tell if we need to return a SCSI command
188*4882a593Smuzhiyun 	 * during some form of error processing.
189*4882a593Smuzhiyun 	 */
190*4882a593Smuzhiyun 	bool return_scsi_cmd_on_abts;
191*4882a593Smuzhiyun 
192*4882a593Smuzhiyun 	unsigned int alloc;
193*4882a593Smuzhiyun };
194*4882a593Smuzhiyun 
195*4882a593Smuzhiyun extern struct workqueue_struct *qedf_io_wq;
196*4882a593Smuzhiyun 
197*4882a593Smuzhiyun struct qedf_rport {
198*4882a593Smuzhiyun 	spinlock_t rport_lock;
199*4882a593Smuzhiyun #define QEDF_RPORT_SESSION_READY 1
200*4882a593Smuzhiyun #define QEDF_RPORT_UPLOADING_CONNECTION	2
201*4882a593Smuzhiyun #define QEDF_RPORT_IN_RESET 3
202*4882a593Smuzhiyun #define QEDF_RPORT_IN_LUN_RESET 4
203*4882a593Smuzhiyun #define QEDF_RPORT_IN_TARGET_RESET 5
204*4882a593Smuzhiyun 	unsigned long flags;
205*4882a593Smuzhiyun 	int lun_reset_lun;
206*4882a593Smuzhiyun 	unsigned long retry_delay_timestamp;
207*4882a593Smuzhiyun 	struct fc_rport *rport;
208*4882a593Smuzhiyun 	struct fc_rport_priv *rdata;
209*4882a593Smuzhiyun 	struct qedf_ctx *qedf;
210*4882a593Smuzhiyun 	u32 handle; /* Handle from qed */
211*4882a593Smuzhiyun 	u32 fw_cid; /* fw_cid from qed */
212*4882a593Smuzhiyun 	void __iomem *p_doorbell;
213*4882a593Smuzhiyun 	/* Send queue management */
214*4882a593Smuzhiyun 	atomic_t free_sqes;
215*4882a593Smuzhiyun 	atomic_t ios_to_queue;
216*4882a593Smuzhiyun 	atomic_t num_active_ios;
217*4882a593Smuzhiyun 	struct fcoe_wqe *sq;
218*4882a593Smuzhiyun 	dma_addr_t sq_dma;
219*4882a593Smuzhiyun 	u16 sq_prod_idx;
220*4882a593Smuzhiyun 	u16 fw_sq_prod_idx;
221*4882a593Smuzhiyun 	u16 sq_con_idx;
222*4882a593Smuzhiyun 	u32 sq_mem_size;
223*4882a593Smuzhiyun 	void *sq_pbl;
224*4882a593Smuzhiyun 	dma_addr_t sq_pbl_dma;
225*4882a593Smuzhiyun 	u32 sq_pbl_size;
226*4882a593Smuzhiyun 	u32 sid;
227*4882a593Smuzhiyun #define	QEDF_RPORT_TYPE_DISK		0
228*4882a593Smuzhiyun #define	QEDF_RPORT_TYPE_TAPE		1
229*4882a593Smuzhiyun 	uint dev_type; /* Disk or tape */
230*4882a593Smuzhiyun 	struct list_head peers;
231*4882a593Smuzhiyun };
232*4882a593Smuzhiyun 
233*4882a593Smuzhiyun /* Used to contain LL2 skb's in ll2_skb_list */
234*4882a593Smuzhiyun struct qedf_skb_work {
235*4882a593Smuzhiyun 	struct work_struct work;
236*4882a593Smuzhiyun 	struct sk_buff *skb;
237*4882a593Smuzhiyun 	struct qedf_ctx *qedf;
238*4882a593Smuzhiyun };
239*4882a593Smuzhiyun 
240*4882a593Smuzhiyun struct qedf_fastpath {
241*4882a593Smuzhiyun #define	QEDF_SB_ID_NULL		0xffff
242*4882a593Smuzhiyun 	u16		sb_id;
243*4882a593Smuzhiyun 	struct qed_sb_info	*sb_info;
244*4882a593Smuzhiyun 	struct qedf_ctx *qedf;
245*4882a593Smuzhiyun 	/* Keep track of number of completions on this fastpath */
246*4882a593Smuzhiyun 	unsigned long completions;
247*4882a593Smuzhiyun 	uint32_t cq_num_entries;
248*4882a593Smuzhiyun };
249*4882a593Smuzhiyun 
250*4882a593Smuzhiyun /* Used to pass fastpath information needed to process CQEs */
251*4882a593Smuzhiyun struct qedf_io_work {
252*4882a593Smuzhiyun 	struct work_struct work;
253*4882a593Smuzhiyun 	struct fcoe_cqe cqe;
254*4882a593Smuzhiyun 	struct qedf_ctx *qedf;
255*4882a593Smuzhiyun 	struct fc_frame *fp;
256*4882a593Smuzhiyun };
257*4882a593Smuzhiyun 
258*4882a593Smuzhiyun struct qedf_glbl_q_params {
259*4882a593Smuzhiyun 	u64	hw_p_cq;	/* Completion queue PBL */
260*4882a593Smuzhiyun 	u64	hw_p_rq;	/* Request queue PBL */
261*4882a593Smuzhiyun 	u64	hw_p_cmdq;	/* Command queue PBL */
262*4882a593Smuzhiyun };
263*4882a593Smuzhiyun 
264*4882a593Smuzhiyun struct global_queue {
265*4882a593Smuzhiyun 	struct fcoe_cqe *cq;
266*4882a593Smuzhiyun 	dma_addr_t cq_dma;
267*4882a593Smuzhiyun 	u32 cq_mem_size;
268*4882a593Smuzhiyun 	u32 cq_cons_idx; /* Completion queue consumer index */
269*4882a593Smuzhiyun 	u32 cq_prod_idx;
270*4882a593Smuzhiyun 
271*4882a593Smuzhiyun 	void *cq_pbl;
272*4882a593Smuzhiyun 	dma_addr_t cq_pbl_dma;
273*4882a593Smuzhiyun 	u32 cq_pbl_size;
274*4882a593Smuzhiyun };
275*4882a593Smuzhiyun 
276*4882a593Smuzhiyun /* I/O tracing entry */
277*4882a593Smuzhiyun #define QEDF_IO_TRACE_SIZE		2048
278*4882a593Smuzhiyun struct qedf_io_log {
279*4882a593Smuzhiyun #define QEDF_IO_TRACE_REQ		0
280*4882a593Smuzhiyun #define QEDF_IO_TRACE_RSP		1
281*4882a593Smuzhiyun 	uint8_t direction;
282*4882a593Smuzhiyun 	uint16_t task_id;
283*4882a593Smuzhiyun 	uint32_t port_id; /* Remote port fabric ID */
284*4882a593Smuzhiyun 	int lun;
285*4882a593Smuzhiyun 	unsigned char op; /* SCSI CDB */
286*4882a593Smuzhiyun 	uint8_t lba[4];
287*4882a593Smuzhiyun 	unsigned int bufflen; /* SCSI buffer length */
288*4882a593Smuzhiyun 	unsigned int sg_count; /* Number of SG elements */
289*4882a593Smuzhiyun 	int result; /* Result passed back to mid-layer */
290*4882a593Smuzhiyun 	unsigned long jiffies; /* Time stamp when I/O logged */
291*4882a593Smuzhiyun 	int refcount; /* Reference count for task id */
292*4882a593Smuzhiyun 	unsigned int req_cpu; /* CPU that the task is queued on */
293*4882a593Smuzhiyun 	unsigned int int_cpu; /* Interrupt CPU that the task is received on */
294*4882a593Smuzhiyun 	unsigned int rsp_cpu; /* CPU that task is returned on */
295*4882a593Smuzhiyun 	u8 sge_type; /* Did we take the slow, single or fast SGE path */
296*4882a593Smuzhiyun };
297*4882a593Smuzhiyun 
298*4882a593Smuzhiyun /* Number of entries in BDQ */
299*4882a593Smuzhiyun #define QEDF_BDQ_SIZE			256
300*4882a593Smuzhiyun #define QEDF_BDQ_BUF_SIZE		2072
301*4882a593Smuzhiyun 
302*4882a593Smuzhiyun /* DMA coherent buffers for BDQ */
303*4882a593Smuzhiyun struct qedf_bdq_buf {
304*4882a593Smuzhiyun 	void *buf_addr;
305*4882a593Smuzhiyun 	dma_addr_t buf_dma;
306*4882a593Smuzhiyun };
307*4882a593Smuzhiyun 
308*4882a593Smuzhiyun /* Main adapter struct */
309*4882a593Smuzhiyun struct qedf_ctx {
310*4882a593Smuzhiyun 	struct qedf_dbg_ctx dbg_ctx;
311*4882a593Smuzhiyun 	struct fcoe_ctlr ctlr;
312*4882a593Smuzhiyun 	struct fc_lport *lport;
313*4882a593Smuzhiyun 	u8 data_src_addr[ETH_ALEN];
314*4882a593Smuzhiyun #define QEDF_LINK_DOWN		0
315*4882a593Smuzhiyun #define QEDF_LINK_UP		1
316*4882a593Smuzhiyun 	atomic_t link_state;
317*4882a593Smuzhiyun #define QEDF_DCBX_PENDING	0
318*4882a593Smuzhiyun #define QEDF_DCBX_DONE		1
319*4882a593Smuzhiyun 	atomic_t dcbx;
320*4882a593Smuzhiyun #define QEDF_NULL_VLAN_ID	-1
321*4882a593Smuzhiyun #define QEDF_FALLBACK_VLAN	1002
322*4882a593Smuzhiyun #define QEDF_DEFAULT_PRIO	3
323*4882a593Smuzhiyun 	int vlan_id;
324*4882a593Smuzhiyun 	u8 prio;
325*4882a593Smuzhiyun 	struct qed_dev *cdev;
326*4882a593Smuzhiyun 	struct qed_dev_fcoe_info dev_info;
327*4882a593Smuzhiyun 	struct qed_int_info int_info;
328*4882a593Smuzhiyun 	uint16_t last_command;
329*4882a593Smuzhiyun 	spinlock_t hba_lock;
330*4882a593Smuzhiyun 	struct pci_dev *pdev;
331*4882a593Smuzhiyun 	u64 wwnn;
332*4882a593Smuzhiyun 	u64 wwpn;
333*4882a593Smuzhiyun 	u8 __aligned(16) mac[ETH_ALEN];
334*4882a593Smuzhiyun 	struct list_head fcports;
335*4882a593Smuzhiyun 	atomic_t num_offloads;
336*4882a593Smuzhiyun 	unsigned int curr_conn_id;
337*4882a593Smuzhiyun 	struct workqueue_struct *ll2_recv_wq;
338*4882a593Smuzhiyun 	struct workqueue_struct *link_update_wq;
339*4882a593Smuzhiyun 	struct delayed_work link_update;
340*4882a593Smuzhiyun 	struct delayed_work link_recovery;
341*4882a593Smuzhiyun 	struct completion flogi_compl;
342*4882a593Smuzhiyun 	struct completion fipvlan_compl;
343*4882a593Smuzhiyun 
344*4882a593Smuzhiyun 	/*
345*4882a593Smuzhiyun 	 * Used to tell if we're in the window where we are waiting for
346*4882a593Smuzhiyun 	 * the link to come back up before informting fcoe that the link is
347*4882a593Smuzhiyun 	 * done.
348*4882a593Smuzhiyun 	 */
349*4882a593Smuzhiyun 	atomic_t link_down_tmo_valid;
350*4882a593Smuzhiyun #define QEDF_TIMER_INTERVAL		(1 * HZ)
351*4882a593Smuzhiyun 	struct timer_list timer; /* One second book keeping timer */
352*4882a593Smuzhiyun #define QEDF_DRAIN_ACTIVE		1
353*4882a593Smuzhiyun #define QEDF_LL2_STARTED		2
354*4882a593Smuzhiyun #define QEDF_UNLOADING			3
355*4882a593Smuzhiyun #define QEDF_GRCDUMP_CAPTURE		4
356*4882a593Smuzhiyun #define QEDF_IN_RECOVERY		5
357*4882a593Smuzhiyun #define QEDF_DBG_STOP_IO		6
358*4882a593Smuzhiyun #define QEDF_PROBING			8
359*4882a593Smuzhiyun 	unsigned long flags; /* Miscellaneous state flags */
360*4882a593Smuzhiyun 	int fipvlan_retries;
361*4882a593Smuzhiyun 	u8 num_queues;
362*4882a593Smuzhiyun 	struct global_queue **global_queues;
363*4882a593Smuzhiyun 	/* Pointer to array of queue structures */
364*4882a593Smuzhiyun 	struct qedf_glbl_q_params *p_cpuq;
365*4882a593Smuzhiyun 	/* Physical address of array of queue structures */
366*4882a593Smuzhiyun 	dma_addr_t hw_p_cpuq;
367*4882a593Smuzhiyun 
368*4882a593Smuzhiyun 	struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE];
369*4882a593Smuzhiyun 	void *bdq_pbl;
370*4882a593Smuzhiyun 	dma_addr_t bdq_pbl_dma;
371*4882a593Smuzhiyun 	size_t bdq_pbl_mem_size;
372*4882a593Smuzhiyun 	void *bdq_pbl_list;
373*4882a593Smuzhiyun 	dma_addr_t bdq_pbl_list_dma;
374*4882a593Smuzhiyun 	u8 bdq_pbl_list_num_entries;
375*4882a593Smuzhiyun 	void __iomem *bdq_primary_prod;
376*4882a593Smuzhiyun 	void __iomem *bdq_secondary_prod;
377*4882a593Smuzhiyun 	uint16_t bdq_prod_idx;
378*4882a593Smuzhiyun 
379*4882a593Smuzhiyun 	/* Structure for holding all the fastpath for this qedf_ctx */
380*4882a593Smuzhiyun 	struct qedf_fastpath *fp_array;
381*4882a593Smuzhiyun 	struct qed_fcoe_tid tasks;
382*4882a593Smuzhiyun 	struct qedf_cmd_mgr *cmd_mgr;
383*4882a593Smuzhiyun 	/* Holds the PF parameters we pass to qed to start he FCoE function */
384*4882a593Smuzhiyun 	struct qed_pf_params pf_params;
385*4882a593Smuzhiyun 	/* Used to time middle path ELS and TM commands */
386*4882a593Smuzhiyun 	struct workqueue_struct *timer_work_queue;
387*4882a593Smuzhiyun 
388*4882a593Smuzhiyun #define QEDF_IO_WORK_MIN		64
389*4882a593Smuzhiyun 	mempool_t *io_mempool;
390*4882a593Smuzhiyun 	struct workqueue_struct *dpc_wq;
391*4882a593Smuzhiyun 	struct delayed_work recovery_work;
392*4882a593Smuzhiyun 	struct delayed_work board_disable_work;
393*4882a593Smuzhiyun 	struct delayed_work grcdump_work;
394*4882a593Smuzhiyun 	struct delayed_work stag_work;
395*4882a593Smuzhiyun 
396*4882a593Smuzhiyun 	u32 slow_sge_ios;
397*4882a593Smuzhiyun 	u32 fast_sge_ios;
398*4882a593Smuzhiyun 
399*4882a593Smuzhiyun 	uint8_t	*grcdump;
400*4882a593Smuzhiyun 	uint32_t grcdump_size;
401*4882a593Smuzhiyun 
402*4882a593Smuzhiyun 	struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
403*4882a593Smuzhiyun 	spinlock_t io_trace_lock;
404*4882a593Smuzhiyun 	uint16_t io_trace_idx;
405*4882a593Smuzhiyun 
406*4882a593Smuzhiyun 	bool stop_io_on_error;
407*4882a593Smuzhiyun 
408*4882a593Smuzhiyun 	u32 flogi_cnt;
409*4882a593Smuzhiyun 	u32 flogi_failed;
410*4882a593Smuzhiyun 	u32 flogi_pending;
411*4882a593Smuzhiyun 
412*4882a593Smuzhiyun 	/* Used for fc statistics */
413*4882a593Smuzhiyun 	struct mutex stats_mutex;
414*4882a593Smuzhiyun 	u64 input_requests;
415*4882a593Smuzhiyun 	u64 output_requests;
416*4882a593Smuzhiyun 	u64 control_requests;
417*4882a593Smuzhiyun 	u64 packet_aborts;
418*4882a593Smuzhiyun 	u64 alloc_failures;
419*4882a593Smuzhiyun 	u8 lun_resets;
420*4882a593Smuzhiyun 	u8 target_resets;
421*4882a593Smuzhiyun 	u8 task_set_fulls;
422*4882a593Smuzhiyun 	u8 busy;
423*4882a593Smuzhiyun 	/* Used for flush routine */
424*4882a593Smuzhiyun 	struct mutex flush_mutex;
425*4882a593Smuzhiyun };
426*4882a593Smuzhiyun 
427*4882a593Smuzhiyun struct io_bdt {
428*4882a593Smuzhiyun 	struct qedf_ioreq *io_req;
429*4882a593Smuzhiyun 	struct scsi_sge *bd_tbl;
430*4882a593Smuzhiyun 	dma_addr_t bd_tbl_dma;
431*4882a593Smuzhiyun 	u16 bd_valid;
432*4882a593Smuzhiyun };
433*4882a593Smuzhiyun 
434*4882a593Smuzhiyun struct qedf_cmd_mgr {
435*4882a593Smuzhiyun 	struct qedf_ctx *qedf;
436*4882a593Smuzhiyun 	u16 idx;
437*4882a593Smuzhiyun 	struct io_bdt **io_bdt_pool;
438*4882a593Smuzhiyun #define FCOE_PARAMS_NUM_TASKS		2048
439*4882a593Smuzhiyun 	struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS];
440*4882a593Smuzhiyun 	spinlock_t lock;
441*4882a593Smuzhiyun 	atomic_t free_list_cnt;
442*4882a593Smuzhiyun };
443*4882a593Smuzhiyun 
444*4882a593Smuzhiyun /* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info
445*4882a593Smuzhiyun  * Usage:
446*4882a593Smuzhiyun  *
447*4882a593Smuzhiyun  * void *ptr;
448*4882a593Smuzhiyun  * ptr = qedf_get_task_mem(&qedf->tasks, 128);
449*4882a593Smuzhiyun  */
qedf_get_task_mem(struct qed_fcoe_tid * info,u32 tid)450*4882a593Smuzhiyun static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid)
451*4882a593Smuzhiyun {
452*4882a593Smuzhiyun 	return (void *)(info->blocks[tid / info->num_tids_per_block] +
453*4882a593Smuzhiyun 			(tid % info->num_tids_per_block) * info->size);
454*4882a593Smuzhiyun }
455*4882a593Smuzhiyun 
qedf_stop_all_io(struct qedf_ctx * qedf)456*4882a593Smuzhiyun static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
457*4882a593Smuzhiyun {
458*4882a593Smuzhiyun 	set_bit(QEDF_DBG_STOP_IO, &qedf->flags);
459*4882a593Smuzhiyun }
460*4882a593Smuzhiyun 
461*4882a593Smuzhiyun /*
462*4882a593Smuzhiyun  * Externs
463*4882a593Smuzhiyun  */
464*4882a593Smuzhiyun 
465*4882a593Smuzhiyun /*
466*4882a593Smuzhiyun  * (QEDF_LOG_NPIV | QEDF_LOG_SESS | QEDF_LOG_LPORT | QEDF_LOG_ELS | QEDF_LOG_MQ
467*4882a593Smuzhiyun  * | QEDF_LOG_IO | QEDF_LOG_UNSOL | QEDF_LOG_SCSI_TM | QEDF_LOG_MP_REQ |
468*4882a593Smuzhiyun  * QEDF_LOG_EVT | QEDF_LOG_CONN | QEDF_LOG_DISC | QEDF_LOG_INFO)
469*4882a593Smuzhiyun  */
470*4882a593Smuzhiyun #define QEDF_DEFAULT_LOG_MASK		0x3CFB6
471*4882a593Smuzhiyun extern const struct qed_fcoe_ops *qed_ops;
472*4882a593Smuzhiyun extern uint qedf_dump_frames;
473*4882a593Smuzhiyun extern uint qedf_io_tracing;
474*4882a593Smuzhiyun extern uint qedf_stop_io_on_error;
475*4882a593Smuzhiyun extern uint qedf_link_down_tmo;
476*4882a593Smuzhiyun #define QEDF_RETRY_DELAY_MAX		600 /* 60 seconds */
477*4882a593Smuzhiyun extern bool qedf_retry_delay;
478*4882a593Smuzhiyun extern uint qedf_debug;
479*4882a593Smuzhiyun 
480*4882a593Smuzhiyun extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf);
481*4882a593Smuzhiyun extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr);
482*4882a593Smuzhiyun extern int qedf_queuecommand(struct Scsi_Host *host,
483*4882a593Smuzhiyun 	struct scsi_cmnd *sc_cmd);
484*4882a593Smuzhiyun extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
485*4882a593Smuzhiyun extern u8 *qedf_get_src_mac(struct fc_lport *lport);
486*4882a593Smuzhiyun extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb);
487*4882a593Smuzhiyun extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf);
488*4882a593Smuzhiyun extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
489*4882a593Smuzhiyun 	struct qedf_ioreq *io_req);
490*4882a593Smuzhiyun extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
491*4882a593Smuzhiyun 	struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
492*4882a593Smuzhiyun extern void qedf_process_error_detect(struct qedf_ctx *qedf,
493*4882a593Smuzhiyun 	struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
494*4882a593Smuzhiyun extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
495*4882a593Smuzhiyun extern void qedf_release_cmd(struct kref *ref);
496*4882a593Smuzhiyun extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
497*4882a593Smuzhiyun 	bool return_scsi_cmd_on_abts);
498*4882a593Smuzhiyun extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
499*4882a593Smuzhiyun 	struct qedf_ioreq *io_req);
500*4882a593Smuzhiyun extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport,
501*4882a593Smuzhiyun 	u8 cmd_type);
502*4882a593Smuzhiyun 
503*4882a593Smuzhiyun extern struct device_attribute *qedf_host_attrs[];
504*4882a593Smuzhiyun extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
505*4882a593Smuzhiyun 	unsigned int timer_msec);
506*4882a593Smuzhiyun extern int qedf_init_mp_req(struct qedf_ioreq *io_req);
507*4882a593Smuzhiyun extern void qedf_init_mp_task(struct qedf_ioreq *io_req,
508*4882a593Smuzhiyun 	struct e4_fcoe_task_context *task_ctx, struct fcoe_wqe *sqe);
509*4882a593Smuzhiyun extern u16 qedf_get_sqe_idx(struct qedf_rport *fcport);
510*4882a593Smuzhiyun extern void qedf_ring_doorbell(struct qedf_rport *fcport);
511*4882a593Smuzhiyun extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
512*4882a593Smuzhiyun 	struct qedf_ioreq *els_req);
513*4882a593Smuzhiyun extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req);
514*4882a593Smuzhiyun extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp);
515*4882a593Smuzhiyun extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
516*4882a593Smuzhiyun 	bool return_scsi_cmd_on_abts);
517*4882a593Smuzhiyun extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
518*4882a593Smuzhiyun 	struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
519*4882a593Smuzhiyun extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
520*4882a593Smuzhiyun extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
521*4882a593Smuzhiyun 	struct qedf_ioreq *io_req);
522*4882a593Smuzhiyun extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
523*4882a593Smuzhiyun extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
524*4882a593Smuzhiyun 	int result);
525*4882a593Smuzhiyun extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id);
526*4882a593Smuzhiyun extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf);
527*4882a593Smuzhiyun extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf);
528*4882a593Smuzhiyun extern void qedf_capture_grc_dump(struct qedf_ctx *qedf);
529*4882a593Smuzhiyun bool qedf_wait_for_upload(struct qedf_ctx *qedf);
530*4882a593Smuzhiyun extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
531*4882a593Smuzhiyun 	struct fcoe_cqe *cqe);
532*4882a593Smuzhiyun extern void qedf_restart_rport(struct qedf_rport *fcport);
533*4882a593Smuzhiyun extern int qedf_send_rec(struct qedf_ioreq *orig_io_req);
534*4882a593Smuzhiyun extern int qedf_post_io_req(struct qedf_rport *fcport,
535*4882a593Smuzhiyun 	struct qedf_ioreq *io_req);
536*4882a593Smuzhiyun extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
537*4882a593Smuzhiyun 	struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
538*4882a593Smuzhiyun extern int qedf_send_flogi(struct qedf_ctx *qedf);
539*4882a593Smuzhiyun extern void qedf_get_protocol_tlv_data(void *dev, void *data);
540*4882a593Smuzhiyun extern void qedf_fp_io_handler(struct work_struct *work);
541*4882a593Smuzhiyun extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data);
542*4882a593Smuzhiyun extern void qedf_wq_grcdump(struct work_struct *work);
543*4882a593Smuzhiyun void qedf_stag_change_work(struct work_struct *work);
544*4882a593Smuzhiyun void qedf_ctx_soft_reset(struct fc_lport *lport);
545*4882a593Smuzhiyun extern void qedf_board_disable_work(struct work_struct *work);
546*4882a593Smuzhiyun extern void qedf_schedule_hw_err_handler(void *dev,
547*4882a593Smuzhiyun 		enum qed_hw_err_type err_type);
548*4882a593Smuzhiyun 
549*4882a593Smuzhiyun #define FCOE_WORD_TO_BYTE  4
550*4882a593Smuzhiyun #define QEDF_MAX_TASK_NUM	0xFFFF
551*4882a593Smuzhiyun #define QL45xxx			0x165C
552*4882a593Smuzhiyun #define QL41xxx			0x8080
553*4882a593Smuzhiyun #define MAX_CT_PAYLOAD		2048
554*4882a593Smuzhiyun #define DISCOVERED_PORTS	4
555*4882a593Smuzhiyun #define NUMBER_OF_PORTS		1
556*4882a593Smuzhiyun 
557*4882a593Smuzhiyun struct fip_vlan {
558*4882a593Smuzhiyun 	struct ethhdr eth;
559*4882a593Smuzhiyun 	struct fip_header fip;
560*4882a593Smuzhiyun 	struct {
561*4882a593Smuzhiyun 		struct fip_mac_desc mac;
562*4882a593Smuzhiyun 		struct fip_wwn_desc wwnn;
563*4882a593Smuzhiyun 	} desc;
564*4882a593Smuzhiyun };
565*4882a593Smuzhiyun 
566*4882a593Smuzhiyun /* SQ/CQ Sizes */
567*4882a593Smuzhiyun #define GBL_RSVD_TASKS			16
568*4882a593Smuzhiyun #define NUM_TASKS_PER_CONNECTION	1024
569*4882a593Smuzhiyun #define NUM_RW_TASKS_PER_CONNECTION	512
570*4882a593Smuzhiyun #define FCOE_PARAMS_CQ_NUM_ENTRIES	FCOE_PARAMS_NUM_TASKS
571*4882a593Smuzhiyun 
572*4882a593Smuzhiyun #define FCOE_PARAMS_CMDQ_NUM_ENTRIES	FCOE_PARAMS_NUM_TASKS
573*4882a593Smuzhiyun #define SQ_NUM_ENTRIES			NUM_TASKS_PER_CONNECTION
574*4882a593Smuzhiyun 
575*4882a593Smuzhiyun #define QEDF_FCOE_PARAMS_GL_RQ_PI              0
576*4882a593Smuzhiyun #define QEDF_FCOE_PARAMS_GL_CMD_PI             1
577*4882a593Smuzhiyun 
578*4882a593Smuzhiyun #define QEDF_READ                     (1 << 1)
579*4882a593Smuzhiyun #define QEDF_WRITE                    (1 << 0)
580*4882a593Smuzhiyun #define MAX_FIBRE_LUNS			0xffffffff
581*4882a593Smuzhiyun 
582*4882a593Smuzhiyun #define MIN_NUM_CPUS_MSIX(x)	min_t(u32, x->dev_info.num_cqs, \
583*4882a593Smuzhiyun 					num_online_cpus())
584*4882a593Smuzhiyun 
585*4882a593Smuzhiyun /*
586*4882a593Smuzhiyun  * PCI function probe defines
587*4882a593Smuzhiyun  */
588*4882a593Smuzhiyun /* Probe/remove called during normal PCI probe */
589*4882a593Smuzhiyun #define	QEDF_MODE_NORMAL		0
590*4882a593Smuzhiyun /* Probe/remove called from qed error recovery */
591*4882a593Smuzhiyun #define QEDF_MODE_RECOVERY		1
592*4882a593Smuzhiyun 
593*4882a593Smuzhiyun #define SUPPORTED_25000baseKR_Full    (1<<27)
594*4882a593Smuzhiyun #define SUPPORTED_50000baseKR2_Full   (1<<28)
595*4882a593Smuzhiyun #define SUPPORTED_100000baseKR4_Full  (1<<29)
596*4882a593Smuzhiyun #define SUPPORTED_100000baseCR4_Full  (1<<30)
597*4882a593Smuzhiyun 
598*4882a593Smuzhiyun #endif
599