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[SCSI] aacraid: improve queue balancing
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / lpfc / lpfc_crtn.h
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
9413afff 4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e
JB		 6 * www.emulex.com *
7 * *
8 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
dea3101e
JB		 19 *******************************************************************/
20
685f0bf7
JS		 21typedef int (*node_filter)(struct lpfc_nodelist *ndlp, void *param);
22
c01f3208 23struct fc_rport;
dea3101e
JB		 24void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
25void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *);
57127f15
JS		 26void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
27
858c9f6c 28void lpfc_heart_beat(struct lpfc_hba *, LPFC_MBOXQ_t *);
dea3101e
JB		 29int lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
30 struct lpfc_dmabuf *mp);
31void lpfc_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
2e0fef85 32void lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport);
dea3101e 33void lpfc_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
92d7f7b0 34int lpfc_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *, int);
dea3101e 35void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *);
7bb3b137 36void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *);
92d7f7b0
JS		 37int lpfc_reg_login(struct lpfc_hba *, uint16_t, uint32_t, uint8_t *,
38 LPFC_MBOXQ_t *, uint32_t);
39void lpfc_unreg_login(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
40void lpfc_unreg_did(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
41void lpfc_reg_vpi(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
42void lpfc_unreg_vpi(struct lpfc_hba *, uint16_t, LPFC_MBOXQ_t *);
dea3101e
JB		 43void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
44
549e55cd 45struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t);
92d7f7b0 46void lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove);
dea3101e 47int lpfc_linkdown(struct lpfc_hba *);
87af33fe 48void lpfc_port_link_failure(struct lpfc_vport *);
dea3101e
JB		 49void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
50
dea3101e 51void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
858c9f6c 52void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *, LPFC_MBOXQ_t *);
dea3101e
JB		 53void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
54void lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
55void lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
2e0fef85
JS		 56void lpfc_dequeue_node(struct lpfc_vport *, struct lpfc_nodelist *);
57void lpfc_nlp_set_state(struct lpfc_vport *, struct lpfc_nodelist *, int);
58void lpfc_drop_node(struct lpfc_vport *, struct lpfc_nodelist *);
59void lpfc_set_disctmo(struct lpfc_vport *);
60int lpfc_can_disctmo(struct lpfc_vport *);
61int lpfc_unreg_rpi(struct lpfc_vport *, struct lpfc_nodelist *);
92d7f7b0
JS		 62void lpfc_unreg_all_rpis(struct lpfc_vport *);
63void lpfc_unreg_default_rpis(struct lpfc_vport *);
64void lpfc_issue_reg_vpi(struct lpfc_hba *, struct lpfc_vport *);
65
dea3101e 66int lpfc_check_sli_ndlp(struct lpfc_hba *, struct lpfc_sli_ring *,
2e0fef85
JS		 67 struct lpfc_iocbq *, struct lpfc_nodelist *);
68void lpfc_nlp_init(struct lpfc_vport *, struct lpfc_nodelist *, uint32_t);
329f9bc7
JS		 69struct lpfc_nodelist *lpfc_nlp_get(struct lpfc_nodelist *);
70int lpfc_nlp_put(struct lpfc_nodelist *);
98c9ea5c 71int lpfc_nlp_not_used(struct lpfc_nodelist *ndlp);
2e0fef85
JS		 72struct lpfc_nodelist *lpfc_setup_disc_node(struct lpfc_vport *, uint32_t);
73void lpfc_disc_list_loopmap(struct lpfc_vport *);
74void lpfc_disc_start(struct lpfc_vport *);
92d7f7b0 75void lpfc_cleanup_discovery_resources(struct lpfc_vport *);
87af33fe 76void lpfc_cleanup(struct lpfc_vport *);
dea3101e 77void lpfc_disc_timeout(unsigned long);
dea3101e 78
2e0fef85 79struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
dea3101e 80
92d7f7b0 81void lpfc_worker_wake_up(struct lpfc_hba *);
dea3101e
JB		 82int lpfc_workq_post_event(struct lpfc_hba *, void *, void *, uint32_t);
83int lpfc_do_work(void *);
2e0fef85 84int lpfc_disc_state_machine(struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e
JB		 85 uint32_t);
86
92d7f7b0 87void lpfc_do_scr_ns_plogi(struct lpfc_hba *, struct lpfc_vport *);
2e0fef85 88int lpfc_check_sparm(struct lpfc_vport *, struct lpfc_nodelist *,
dea3101e 89 struct serv_parm *, uint32_t);
92d7f7b0 90int lpfc_els_abort(struct lpfc_hba *, struct lpfc_nodelist *);
87af33fe
JS		 91void lpfc_more_plogi(struct lpfc_vport *);
92void lpfc_end_rscn(struct lpfc_vport *);
858c9f6c 93int lpfc_els_chk_latt(struct lpfc_vport *);
dea3101e 94int lpfc_els_abort_flogi(struct lpfc_hba *);
2e0fef85 95int lpfc_initial_flogi(struct lpfc_vport *);
92d7f7b0 96int lpfc_initial_fdisc(struct lpfc_vport *);
2e0fef85
JS		 97int lpfc_issue_els_plogi(struct lpfc_vport *, uint32_t, uint8_t);
98int lpfc_issue_els_prli(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
99int lpfc_issue_els_adisc(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
100int lpfc_issue_els_logo(struct lpfc_vport *, struct lpfc_nodelist *, uint8_t);
92d7f7b0 101int lpfc_issue_els_npiv_logo(struct lpfc_vport *, struct lpfc_nodelist *);
2e0fef85 102int lpfc_issue_els_scr(struct lpfc_vport *, uint32_t, uint8_t);
dea3101e 103int lpfc_els_free_iocb(struct lpfc_hba *, struct lpfc_iocbq *);
858c9f6c 104int lpfc_ct_free_iocb(struct lpfc_hba *, struct lpfc_iocbq *);
2e0fef85 105int lpfc_els_rsp_acc(struct lpfc_vport *, uint32_t, struct lpfc_iocbq *,
51ef4c26 106 struct lpfc_nodelist *, LPFC_MBOXQ_t *);
2e0fef85 107int lpfc_els_rsp_reject(struct lpfc_vport *, uint32_t, struct lpfc_iocbq *,
858c9f6c 108 struct lpfc_nodelist *, LPFC_MBOXQ_t *);
2e0fef85 109int lpfc_els_rsp_adisc_acc(struct lpfc_vport *, struct lpfc_iocbq *,
dea3101e 110 struct lpfc_nodelist *);
2e0fef85 111int lpfc_els_rsp_prli_acc(struct lpfc_vport *, struct lpfc_iocbq *,
dea3101e 112 struct lpfc_nodelist *);
2e0fef85 113void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *, struct lpfc_nodelist *);
dea3101e
JB		 114void lpfc_els_retry_delay(unsigned long);
115void lpfc_els_retry_delay_handler(struct lpfc_nodelist *);
116void lpfc_els_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
117 struct lpfc_iocbq *);
2e0fef85 118int lpfc_els_handle_rscn(struct lpfc_vport *);
92d7f7b0 119void lpfc_els_flush_rscn(struct lpfc_vport *);
2e0fef85 120int lpfc_rscn_payload_check(struct lpfc_vport *, uint32_t);
549e55cd 121void lpfc_els_flush_all_cmd(struct lpfc_hba *);
2e0fef85
JS		 122void lpfc_els_flush_cmd(struct lpfc_vport *);
123int lpfc_els_disc_adisc(struct lpfc_vport *);
124int lpfc_els_disc_plogi(struct lpfc_vport *);
dea3101e 125void lpfc_els_timeout(unsigned long);
2e0fef85 126void lpfc_els_timeout_handler(struct lpfc_vport *);
858c9f6c 127void lpfc_hb_timeout_handler(struct lpfc_hba *);
dea3101e
JB		 128
129void lpfc_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
130 struct lpfc_iocbq *);
92d7f7b0 131int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
2e0fef85 132int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
dea3101e 133void lpfc_fdmi_tmo(unsigned long);
2e0fef85 134void lpfc_fdmi_timeout_handler(struct lpfc_vport *vport);
dea3101e
JB		 135
136int lpfc_config_port_prep(struct lpfc_hba *);
137int lpfc_config_port_post(struct lpfc_hba *);
138int lpfc_hba_down_prep(struct lpfc_hba *);
41415862 139int lpfc_hba_down_post(struct lpfc_hba *);
dea3101e
JB		 140void lpfc_hba_init(struct lpfc_hba *, uint32_t *);
141int lpfc_post_buffer(struct lpfc_hba *, struct lpfc_sli_ring *, int, int);
142void lpfc_decode_firmware_rev(struct lpfc_hba *, char *, int);
dea3101e 143int lpfc_online(struct lpfc_hba *);
46fa311e
JS		 144void lpfc_unblock_mgmt_io(struct lpfc_hba *);
145void lpfc_offline_prep(struct lpfc_hba *);
146void lpfc_offline(struct lpfc_hba *);
dea3101e 147
dea3101e
JB		 148int lpfc_sli_setup(struct lpfc_hba *);
149int lpfc_sli_queue_setup(struct lpfc_hba *);
dea3101e
JB		 150
151void lpfc_handle_eratt(struct lpfc_hba *);
152void lpfc_handle_latt(struct lpfc_hba *);
7d12e780 153irqreturn_t lpfc_intr_handler(int, void *);
dea3101e
JB		 154
155void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *);
156void lpfc_config_ring(struct lpfc_hba *, int, LPFC_MBOXQ_t *);
157void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *);
41415862 158void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *);
dea3101e
JB		 159void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
160LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *);
92d7f7b0 161void lpfc_mbox_cmpl_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
a309a6b6 162int lpfc_mbox_tmo_val(struct lpfc_hba *, int);
dea3101e 163
51ef4c26
JS		 164void lpfc_config_hbq(struct lpfc_hba *, uint32_t, struct lpfc_hbq_init *,
165 uint32_t , LPFC_MBOXQ_t *);
51ef4c26
JS		 166struct hbq_dmabuf *lpfc_els_hbq_alloc(struct lpfc_hba *);
167void lpfc_els_hbq_free(struct lpfc_hba *, struct hbq_dmabuf *);
ed957684 168
dea3101e
JB		 169int lpfc_mem_alloc(struct lpfc_hba *);
170void lpfc_mem_free(struct lpfc_hba *);
92d7f7b0 171void lpfc_stop_vport_timers(struct lpfc_vport *);
dea3101e 172
875fbdfe
JSEC		 173void lpfc_poll_timeout(unsigned long ptr);
174void lpfc_poll_start_timer(struct lpfc_hba * phba);
175void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba);
0bd4ca25 176struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
604a3e30
JB		 177void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
178uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
41415862 179
9290831f 180void lpfc_reset_barrier(struct lpfc_hba * phba);
41415862
JW		 181int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
182int lpfc_sli_brdkill(struct lpfc_hba *);
183int lpfc_sli_brdreset(struct lpfc_hba *);
184int lpfc_sli_brdrestart(struct lpfc_hba *);
dea3101e 185int lpfc_sli_hba_setup(struct lpfc_hba *);
2e0fef85 186int lpfc_sli_host_down(struct lpfc_vport *);
dea3101e
JB		 187int lpfc_sli_hba_down(struct lpfc_hba *);
188int lpfc_sli_issue_mbox(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
189int lpfc_sli_handle_mb_event(struct lpfc_hba *);
b4c02652 190int lpfc_sli_flush_mbox_queue(struct lpfc_hba *);
dea3101e
JB		 191int lpfc_sli_handle_slow_ring_event(struct lpfc_hba *,
192 struct lpfc_sli_ring *, uint32_t);
193void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
194int lpfc_sli_issue_iocb(struct lpfc_hba *, struct lpfc_sli_ring *,
195 struct lpfc_iocbq *, uint32_t);
196void lpfc_sli_pcimem_bcopy(void *, void *, uint32_t);
2e0fef85 197void lpfc_sli_abort_iocb_ring(struct lpfc_hba *, struct lpfc_sli_ring *);
dea3101e
JB		 198int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *,
199 struct lpfc_dmabuf *);
200struct lpfc_dmabuf *lpfc_sli_ringpostbuf_get(struct lpfc_hba *,
201 struct lpfc_sli_ring *,
202 dma_addr_t);
76bb24ef
JS		 203
204uint32_t lpfc_sli_get_buffer_tag(struct lpfc_hba *);
205struct lpfc_dmabuf * lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *,
206 struct lpfc_sli_ring *, uint32_t );
207
51ef4c26 208int lpfc_sli_hbq_count(void);
92d7f7b0 209int lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *, uint32_t);
ed957684 210void lpfc_sli_hbqbuf_free_all(struct lpfc_hba *);
ed957684 211int lpfc_sli_hbq_size(void);
07951076
JS		 212int lpfc_sli_issue_abort_iotag(struct lpfc_hba *, struct lpfc_sli_ring *,
213 struct lpfc_iocbq *);
51ef4c26
JS		 214int lpfc_sli_sum_iocb(struct lpfc_vport *, uint16_t, uint64_t, lpfc_ctx_cmd);
215int lpfc_sli_abort_iocb(struct lpfc_vport *, struct lpfc_sli_ring *, uint16_t,
216 uint64_t, lpfc_ctx_cmd);
dea3101e
JB		 217
218void lpfc_mbox_timeout(unsigned long);
219void lpfc_mbox_timeout_handler(struct lpfc_hba *);
dea3101e 220
2e0fef85
JS		 221struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *, uint32_t);
222struct lpfc_nodelist *lpfc_findnode_wwpn(struct lpfc_vport *,
223 struct lpfc_name *);
dea3101e
JB		 224
225int lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
92d7f7b0 226 uint32_t timeout);
dea3101e 227
68876920
JSEC		 228int lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
229 struct lpfc_sli_ring * pring,
230 struct lpfc_iocbq * piocb,
231 struct lpfc_iocbq * prspiocbq,
232 uint32_t timeout);
5eb95af0
JSEC		 233void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba,
234 struct lpfc_iocbq * cmdiocb,
235 struct lpfc_iocbq * rspiocb);
dea3101e 236
92d7f7b0 237void lpfc_sli_free_hbq(struct lpfc_hba *, struct hbq_dmabuf *);
ed957684 238
dea3101e 239void *lpfc_mbuf_alloc(struct lpfc_hba *, int, dma_addr_t *);
2e0fef85 240void __lpfc_mbuf_free(struct lpfc_hba *, void *, dma_addr_t);
dea3101e
JB		 241void lpfc_mbuf_free(struct lpfc_hba *, void *, dma_addr_t);
242
92d7f7b0 243void lpfc_in_buf_free(struct lpfc_hba *, struct lpfc_dmabuf *);
dea3101e
JB		 244/* Function prototypes. */
245const char* lpfc_info(struct Scsi_Host *);
47a8617c
JS		 246int lpfc_scan_finished(struct Scsi_Host *, unsigned long);
247
dea3101e 248void lpfc_get_cfgparam(struct lpfc_hba *);
3de2a653 249void lpfc_get_vport_cfgparam(struct lpfc_vport *);
2e0fef85
JS		 250int lpfc_alloc_sysfs_attr(struct lpfc_vport *);
251void lpfc_free_sysfs_attr(struct lpfc_vport *);
252extern struct class_device_attribute *lpfc_hba_attrs[];
3de2a653 253extern struct class_device_attribute *lpfc_vport_attrs[];
dea3101e 254extern struct scsi_host_template lpfc_template;
3de2a653 255extern struct scsi_host_template lpfc_vport_template;
dea3101e 256extern struct fc_function_template lpfc_transport_functions;
98c9ea5c 257extern struct fc_function_template lpfc_vport_transport_functions;
ed957684 258extern int lpfc_sli_mode;
7ee5d43e 259extern int lpfc_enable_npiv;
dea3101e 260
92d7f7b0 261int lpfc_vport_symbolic_node_name(struct lpfc_vport *, char *, size_t);
c01f3208
JS		 262void lpfc_terminate_rport_io(struct fc_rport *);
263void lpfc_dev_loss_tmo_callbk(struct fc_rport *rport);
dea3101e 264
3de2a653 265struct lpfc_vport *lpfc_create_port(struct lpfc_hba *, int, struct device *);
92d7f7b0
JS		 266int lpfc_vport_disable(struct fc_vport *fc_vport, bool disable);
267void lpfc_mbx_unreg_vpi(struct lpfc_vport *);
2e0fef85 268void destroy_port(struct lpfc_vport *);
92d7f7b0
JS		 269int lpfc_get_instance(void);
270void lpfc_host_attrib_init(struct Scsi_Host *);
271
858c9f6c
JS		 272extern void lpfc_debugfs_initialize(struct lpfc_vport *);
273extern void lpfc_debugfs_terminate(struct lpfc_vport *);
274extern void lpfc_debugfs_disc_trc(struct lpfc_vport *, int, char *, uint32_t,
275 uint32_t, uint32_t);
a58cbd52
JS		 276extern void lpfc_debugfs_slow_ring_trc(struct lpfc_hba *, char *, uint32_t,
277 uint32_t, uint32_t);
311464ec 278extern struct lpfc_hbq_init *lpfc_hbq_defs[];
858c9f6c 279
92d7f7b0 280/* Interface exported by fabric iocb scheduler */
92d7f7b0
JS		 281void lpfc_fabric_abort_nport(struct lpfc_nodelist *);
282void lpfc_fabric_abort_hba(struct lpfc_hba *);
92d7f7b0
JS		 283void lpfc_fabric_block_timeout(unsigned long);
284void lpfc_unblock_fabric_iocbs(struct lpfc_hba *);
285void lpfc_adjust_queue_depth(struct lpfc_hba *);
286void lpfc_ramp_down_queue_handler(struct lpfc_hba *);
287void lpfc_ramp_up_queue_handler(struct lpfc_hba *);
2e0fef85 288
dea3101e 289#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
92d7f7b0
JS		 290#define HBA_EVENT_RSCN 5
291#define HBA_EVENT_LINK_UP 2
292#define HBA_EVENT_LINK_DOWN 3
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