diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_itnim.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_itnim.c | 1088 |
1 files changed, 0 insertions, 1088 deletions
diff --git a/drivers/scsi/bfa/bfa_itnim.c b/drivers/scsi/bfa/bfa_itnim.c deleted file mode 100644 index a914ff255135..000000000000 --- a/drivers/scsi/bfa/bfa_itnim.c +++ /dev/null @@ -1,1088 +0,0 @@ -/* - * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. - * All rights reserved - * www.brocade.com - * - * Linux driver for Brocade Fibre Channel Host Bus Adapter. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License (GPL) Version 2 as - * published by the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - */ - -#include <bfa.h> -#include <bfa_fcpim.h> -#include "bfa_fcpim_priv.h" - -BFA_TRC_FILE(HAL, ITNIM); - -#define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \ - ((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1))) - -#define bfa_fcpim_additn(__itnim) \ - list_add_tail(&(__itnim)->qe, &(__itnim)->fcpim->itnim_q) -#define bfa_fcpim_delitn(__itnim) do { \ - bfa_assert(bfa_q_is_on_q(&(__itnim)->fcpim->itnim_q, __itnim)); \ - list_del(&(__itnim)->qe); \ - bfa_assert(list_empty(&(__itnim)->io_q)); \ - bfa_assert(list_empty(&(__itnim)->io_cleanup_q)); \ - bfa_assert(list_empty(&(__itnim)->pending_q)); \ -} while (0) - -#define bfa_itnim_online_cb(__itnim) do { \ - if ((__itnim)->bfa->fcs) \ - bfa_cb_itnim_online((__itnim)->ditn); \ - else { \ - bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ - __bfa_cb_itnim_online, (__itnim)); \ - } \ -} while (0) - -#define bfa_itnim_offline_cb(__itnim) do { \ - if ((__itnim)->bfa->fcs) \ - bfa_cb_itnim_offline((__itnim)->ditn); \ - else { \ - bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ - __bfa_cb_itnim_offline, (__itnim)); \ - } \ -} while (0) - -#define bfa_itnim_sler_cb(__itnim) do { \ - if ((__itnim)->bfa->fcs) \ - bfa_cb_itnim_sler((__itnim)->ditn); \ - else { \ - bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ - __bfa_cb_itnim_sler, (__itnim)); \ - } \ -} while (0) - -/* - * forward declarations - */ -static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim); -static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim); -static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim); -static void bfa_itnim_cleanp_comp(void *itnim_cbarg); -static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim); -static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete); -static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete); -static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete); -static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim); -static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim); -static void bfa_itnim_iotov(void *itnim_arg); -static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim); -static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim); -static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim); - -/** - * bfa_itnim_sm BFA itnim state machine - */ - - -enum bfa_itnim_event { - BFA_ITNIM_SM_CREATE = 1, /* itnim is created */ - BFA_ITNIM_SM_ONLINE = 2, /* itnim is online */ - BFA_ITNIM_SM_OFFLINE = 3, /* itnim is offline */ - BFA_ITNIM_SM_FWRSP = 4, /* firmware response */ - BFA_ITNIM_SM_DELETE = 5, /* deleting an existing itnim */ - BFA_ITNIM_SM_CLEANUP = 6, /* IO cleanup completion */ - BFA_ITNIM_SM_SLER = 7, /* second level error recovery */ - BFA_ITNIM_SM_HWFAIL = 8, /* IOC h/w failure event */ - BFA_ITNIM_SM_QRESUME = 9, /* queue space available */ -}; - -static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); -static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event); - -/** - * Beginning/unallocated state - no events expected. - */ -static void -bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_CREATE: - bfa_sm_set_state(itnim, bfa_itnim_sm_created); - itnim->is_online = BFA_FALSE; - bfa_fcpim_additn(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Beginning state, only online event expected. - */ -static void -bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_ONLINE: - if (bfa_itnim_send_fwcreate(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_fcpim_delitn(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Waiting for itnim create response from firmware. - */ -static void -bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_FWRSP: - bfa_sm_set_state(itnim, bfa_itnim_sm_online); - itnim->is_online = BFA_TRUE; - bfa_itnim_iotov_online(itnim); - bfa_itnim_online_cb(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_delete_pending); - break; - - case BFA_ITNIM_SM_OFFLINE: - if (bfa_itnim_send_fwdelete(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -static void -bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_QRESUME: - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); - bfa_itnim_send_fwcreate(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_reqq_wcancel(&itnim->reqq_wait); - bfa_fcpim_delitn(itnim); - break; - - case BFA_ITNIM_SM_OFFLINE: - bfa_sm_set_state(itnim, bfa_itnim_sm_offline); - bfa_reqq_wcancel(&itnim->reqq_wait); - bfa_itnim_offline_cb(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_reqq_wcancel(&itnim->reqq_wait); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Waiting for itnim create response from firmware, a delete is pending. - */ -static void -bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_FWRSP: - if (bfa_itnim_send_fwdelete(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_fcpim_delitn(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Online state - normal parking state. - */ -static void -bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_OFFLINE: - bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); - itnim->is_online = BFA_FALSE; - bfa_itnim_iotov_start(itnim); - bfa_itnim_cleanup(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); - itnim->is_online = BFA_FALSE; - bfa_itnim_cleanup(itnim); - break; - - case BFA_ITNIM_SM_SLER: - bfa_sm_set_state(itnim, bfa_itnim_sm_sler); - itnim->is_online = BFA_FALSE; - bfa_itnim_iotov_start(itnim); - bfa_itnim_sler_cb(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - itnim->is_online = BFA_FALSE; - bfa_itnim_iotov_start(itnim); - bfa_itnim_iocdisable_cleanup(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Second level error recovery need. - */ -static void -bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_OFFLINE: - bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); - bfa_itnim_cleanup(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); - bfa_itnim_cleanup(itnim); - bfa_itnim_iotov_delete(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_itnim_iocdisable_cleanup(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Going offline. Waiting for active IO cleanup. - */ -static void -bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_CLEANUP: - if (bfa_itnim_send_fwdelete(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); - bfa_itnim_iotov_delete(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_itnim_iocdisable_cleanup(itnim); - bfa_itnim_offline_cb(itnim); - break; - - case BFA_ITNIM_SM_SLER: - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Deleting itnim. Waiting for active IO cleanup. - */ -static void -bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_CLEANUP: - if (bfa_itnim_send_fwdelete(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_itnim_iocdisable_cleanup(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Rport offline. Fimrware itnim is being deleted - awaiting f/w response. - */ -static void -bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_FWRSP: - bfa_sm_set_state(itnim, bfa_itnim_sm_offline); - bfa_itnim_offline_cb(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_itnim_offline_cb(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -static void -bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_QRESUME: - bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); - bfa_itnim_send_fwdelete(itnim); - break; - - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - bfa_reqq_wcancel(&itnim->reqq_wait); - bfa_itnim_offline_cb(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Offline state. - */ -static void -bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_itnim_iotov_delete(itnim); - bfa_fcpim_delitn(itnim); - break; - - case BFA_ITNIM_SM_ONLINE: - if (bfa_itnim_send_fwcreate(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * IOC h/w failed state. - */ -static void -bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_DELETE: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_itnim_iotov_delete(itnim); - bfa_fcpim_delitn(itnim); - break; - - case BFA_ITNIM_SM_OFFLINE: - bfa_itnim_offline_cb(itnim); - break; - - case BFA_ITNIM_SM_ONLINE: - if (bfa_itnim_send_fwcreate(itnim)) - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); - else - bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); - break; - - case BFA_ITNIM_SM_HWFAIL: - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -/** - * Itnim is deleted, waiting for firmware response to delete. - */ -static void -bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_FWRSP: - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_fcpim_delitn(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - -static void -bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, - enum bfa_itnim_event event) -{ - bfa_trc(itnim->bfa, itnim->rport->rport_tag); - bfa_trc(itnim->bfa, event); - - switch (event) { - case BFA_ITNIM_SM_QRESUME: - bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); - bfa_itnim_send_fwdelete(itnim); - break; - - case BFA_ITNIM_SM_HWFAIL: - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - bfa_reqq_wcancel(&itnim->reqq_wait); - bfa_fcpim_delitn(itnim); - break; - - default: - bfa_sm_fault(itnim->bfa, event); - } -} - - - -/** - * bfa_itnim_private - */ - -/** - * Initiate cleanup of all IOs on an IOC failure. - */ -static void -bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim) -{ - struct bfa_tskim_s *tskim; - struct bfa_ioim_s *ioim; - struct list_head *qe, *qen; - - list_for_each_safe(qe, qen, &itnim->tsk_q) { - tskim = (struct bfa_tskim_s *) qe; - bfa_tskim_iocdisable(tskim); - } - - list_for_each_safe(qe, qen, &itnim->io_q) { - ioim = (struct bfa_ioim_s *) qe; - bfa_ioim_iocdisable(ioim); - } - - /** - * For IO request in pending queue, we pretend an early timeout. - */ - list_for_each_safe(qe, qen, &itnim->pending_q) { - ioim = (struct bfa_ioim_s *) qe; - bfa_ioim_tov(ioim); - } - - list_for_each_safe(qe, qen, &itnim->io_cleanup_q) { - ioim = (struct bfa_ioim_s *) qe; - bfa_ioim_iocdisable(ioim); - } -} - -/** - * IO cleanup completion - */ -static void -bfa_itnim_cleanp_comp(void *itnim_cbarg) -{ - struct bfa_itnim_s *itnim = itnim_cbarg; - - bfa_stats(itnim, cleanup_comps); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_CLEANUP); -} - -/** - * Initiate cleanup of all IOs. - */ -static void -bfa_itnim_cleanup(struct bfa_itnim_s *itnim) -{ - struct bfa_ioim_s *ioim; - struct bfa_tskim_s *tskim; - struct list_head *qe, *qen; - - bfa_wc_init(&itnim->wc, bfa_itnim_cleanp_comp, itnim); - - list_for_each_safe(qe, qen, &itnim->io_q) { - ioim = (struct bfa_ioim_s *) qe; - - /** - * Move IO to a cleanup queue from active queue so that a later - * TM will not pickup this IO. - */ - list_del(&ioim->qe); - list_add_tail(&ioim->qe, &itnim->io_cleanup_q); - - bfa_wc_up(&itnim->wc); - bfa_ioim_cleanup(ioim); - } - - list_for_each_safe(qe, qen, &itnim->tsk_q) { - tskim = (struct bfa_tskim_s *) qe; - bfa_wc_up(&itnim->wc); - bfa_tskim_cleanup(tskim); - } - - bfa_wc_wait(&itnim->wc); -} - -static void -__bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete) -{ - struct bfa_itnim_s *itnim = cbarg; - - if (complete) - bfa_cb_itnim_online(itnim->ditn); -} - -static void -__bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete) -{ - struct bfa_itnim_s *itnim = cbarg; - - if (complete) - bfa_cb_itnim_offline(itnim->ditn); -} - -static void -__bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete) -{ - struct bfa_itnim_s *itnim = cbarg; - - if (complete) - bfa_cb_itnim_sler(itnim->ditn); -} - -/** - * Call to resume any I/O requests waiting for room in request queue. - */ -static void -bfa_itnim_qresume(void *cbarg) -{ - struct bfa_itnim_s *itnim = cbarg; - - bfa_sm_send_event(itnim, BFA_ITNIM_SM_QRESUME); -} - - - - -/** - * bfa_itnim_public - */ - -void -bfa_itnim_iodone(struct bfa_itnim_s *itnim) -{ - bfa_wc_down(&itnim->wc); -} - -void -bfa_itnim_tskdone(struct bfa_itnim_s *itnim) -{ - bfa_wc_down(&itnim->wc); -} - -void -bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, - u32 *dm_len) -{ - /** - * ITN memory - */ - *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itnim_s); -} - -void -bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) -{ - struct bfa_s *bfa = fcpim->bfa; - struct bfa_itnim_s *itnim; - int i; - - INIT_LIST_HEAD(&fcpim->itnim_q); - - itnim = (struct bfa_itnim_s *) bfa_meminfo_kva(minfo); - fcpim->itnim_arr = itnim; - - for (i = 0; i < fcpim->num_itnims; i++, itnim++) { - bfa_os_memset(itnim, 0, sizeof(struct bfa_itnim_s)); - itnim->bfa = bfa; - itnim->fcpim = fcpim; - itnim->reqq = BFA_REQQ_QOS_LO; - itnim->rport = BFA_RPORT_FROM_TAG(bfa, i); - itnim->iotov_active = BFA_FALSE; - bfa_reqq_winit(&itnim->reqq_wait, bfa_itnim_qresume, itnim); - - INIT_LIST_HEAD(&itnim->io_q); - INIT_LIST_HEAD(&itnim->io_cleanup_q); - INIT_LIST_HEAD(&itnim->pending_q); - INIT_LIST_HEAD(&itnim->tsk_q); - INIT_LIST_HEAD(&itnim->delay_comp_q); - bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); - } - - bfa_meminfo_kva(minfo) = (u8 *) itnim; -} - -void -bfa_itnim_iocdisable(struct bfa_itnim_s *itnim) -{ - bfa_stats(itnim, ioc_disabled); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_HWFAIL); -} - -static bfa_boolean_t -bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim) -{ - struct bfi_itnim_create_req_s *m; - - itnim->msg_no++; - - /** - * check for room in queue to send request now - */ - m = bfa_reqq_next(itnim->bfa, itnim->reqq); - if (!m) { - bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); - return BFA_FALSE; - } - - bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_CREATE_REQ, - bfa_lpuid(itnim->bfa)); - m->fw_handle = itnim->rport->fw_handle; - m->class = FC_CLASS_3; - m->seq_rec = itnim->seq_rec; - m->msg_no = itnim->msg_no; - - /** - * queue I/O message to firmware - */ - bfa_reqq_produce(itnim->bfa, itnim->reqq); - return BFA_TRUE; -} - -static bfa_boolean_t -bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim) -{ - struct bfi_itnim_delete_req_s *m; - - /** - * check for room in queue to send request now - */ - m = bfa_reqq_next(itnim->bfa, itnim->reqq); - if (!m) { - bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); - return BFA_FALSE; - } - - bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_DELETE_REQ, - bfa_lpuid(itnim->bfa)); - m->fw_handle = itnim->rport->fw_handle; - - /** - * queue I/O message to firmware - */ - bfa_reqq_produce(itnim->bfa, itnim->reqq); - return BFA_TRUE; -} - -/** - * Cleanup all pending failed inflight requests. - */ -static void -bfa_itnim_delayed_comp(struct bfa_itnim_s *itnim, bfa_boolean_t iotov) -{ - struct bfa_ioim_s *ioim; - struct list_head *qe, *qen; - - list_for_each_safe(qe, qen, &itnim->delay_comp_q) { - ioim = (struct bfa_ioim_s *)qe; - bfa_ioim_delayed_comp(ioim, iotov); - } -} - -/** - * Start all pending IO requests. - */ -static void -bfa_itnim_iotov_online(struct bfa_itnim_s *itnim) -{ - struct bfa_ioim_s *ioim; - - bfa_itnim_iotov_stop(itnim); - - /** - * Abort all inflight IO requests in the queue - */ - bfa_itnim_delayed_comp(itnim, BFA_FALSE); - - /** - * Start all pending IO requests. - */ - while (!list_empty(&itnim->pending_q)) { - bfa_q_deq(&itnim->pending_q, &ioim); - list_add_tail(&ioim->qe, &itnim->io_q); - bfa_ioim_start(ioim); - } -} - -/** - * Fail all pending IO requests - */ -static void -bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim) -{ - struct bfa_ioim_s *ioim; - - /** - * Fail all inflight IO requests in the queue - */ - bfa_itnim_delayed_comp(itnim, BFA_TRUE); - - /** - * Fail any pending IO requests. - */ - while (!list_empty(&itnim->pending_q)) { - bfa_q_deq(&itnim->pending_q, &ioim); - list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); - bfa_ioim_tov(ioim); - } -} - -/** - * IO TOV timer callback. Fail any pending IO requests. - */ -static void -bfa_itnim_iotov(void *itnim_arg) -{ - struct bfa_itnim_s *itnim = itnim_arg; - - itnim->iotov_active = BFA_FALSE; - - bfa_cb_itnim_tov_begin(itnim->ditn); - bfa_itnim_iotov_cleanup(itnim); - bfa_cb_itnim_tov(itnim->ditn); -} - -/** - * Start IO TOV timer for failing back pending IO requests in offline state. - */ -static void -bfa_itnim_iotov_start(struct bfa_itnim_s *itnim) -{ - if (itnim->fcpim->path_tov > 0) { - - itnim->iotov_active = BFA_TRUE; - bfa_assert(bfa_itnim_hold_io(itnim)); - bfa_timer_start(itnim->bfa, &itnim->timer, - bfa_itnim_iotov, itnim, itnim->fcpim->path_tov); - } -} - -/** - * Stop IO TOV timer. - */ -static void -bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim) -{ - if (itnim->iotov_active) { - itnim->iotov_active = BFA_FALSE; - bfa_timer_stop(&itnim->timer); - } -} - -/** - * Stop IO TOV timer. - */ -static void -bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim) -{ - bfa_boolean_t pathtov_active = BFA_FALSE; - - if (itnim->iotov_active) - pathtov_active = BFA_TRUE; - - bfa_itnim_iotov_stop(itnim); - if (pathtov_active) - bfa_cb_itnim_tov_begin(itnim->ditn); - bfa_itnim_iotov_cleanup(itnim); - if (pathtov_active) - bfa_cb_itnim_tov(itnim->ditn); -} - - - -/** - * bfa_itnim_public - */ - -/** - * Itnim interrupt processing. - */ -void -bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) -{ - struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); - union bfi_itnim_i2h_msg_u msg; - struct bfa_itnim_s *itnim; - - bfa_trc(bfa, m->mhdr.msg_id); - - msg.msg = m; - - switch (m->mhdr.msg_id) { - case BFI_ITNIM_I2H_CREATE_RSP: - itnim = BFA_ITNIM_FROM_TAG(fcpim, - msg.create_rsp->bfa_handle); - bfa_assert(msg.create_rsp->status == BFA_STATUS_OK); - bfa_stats(itnim, create_comps); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); - break; - - case BFI_ITNIM_I2H_DELETE_RSP: - itnim = BFA_ITNIM_FROM_TAG(fcpim, - msg.delete_rsp->bfa_handle); - bfa_assert(msg.delete_rsp->status == BFA_STATUS_OK); - bfa_stats(itnim, delete_comps); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); - break; - - case BFI_ITNIM_I2H_SLER_EVENT: - itnim = BFA_ITNIM_FROM_TAG(fcpim, - msg.sler_event->bfa_handle); - bfa_stats(itnim, sler_events); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_SLER); - break; - - default: - bfa_trc(bfa, m->mhdr.msg_id); - bfa_assert(0); - } -} - - - -/** - * bfa_itnim_api - */ - -struct bfa_itnim_s * -bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn) -{ - struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); - struct bfa_itnim_s *itnim; - - itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag); - bfa_assert(itnim->rport == rport); - - itnim->ditn = ditn; - - bfa_stats(itnim, creates); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE); - - return itnim; -} - -void -bfa_itnim_delete(struct bfa_itnim_s *itnim) -{ - bfa_stats(itnim, deletes); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_DELETE); -} - -void -bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec) -{ - itnim->seq_rec = seq_rec; - bfa_stats(itnim, onlines); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_ONLINE); -} - -void -bfa_itnim_offline(struct bfa_itnim_s *itnim) -{ - bfa_stats(itnim, offlines); - bfa_sm_send_event(itnim, BFA_ITNIM_SM_OFFLINE); -} - -/** - * Return true if itnim is considered offline for holding off IO request. - * IO is not held if itnim is being deleted. - */ -bfa_boolean_t -bfa_itnim_hold_io(struct bfa_itnim_s *itnim) -{ - return - itnim->fcpim->path_tov && itnim->iotov_active && - (bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) || - bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) || - bfa_sm_cmp_state(itnim, bfa_itnim_sm_cleanup_offline) || - bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) || - bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) || - bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable)) - ; -} - -void -bfa_itnim_get_stats(struct bfa_itnim_s *itnim, - struct bfa_itnim_hal_stats_s *stats) -{ - *stats = itnim->stats; -} - -void -bfa_itnim_clear_stats(struct bfa_itnim_s *itnim) -{ - bfa_os_memset(&itnim->stats, 0, sizeof(itnim->stats)); -} - - |