[SCSI] bfa: Brocade BFA FC SCSI driver
Add new driver for Brocade Hardware
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/bfa/bfa_itnim.c b/drivers/scsi/bfa/bfa_itnim.c
new file mode 100644
index 0000000..4d5c61a
--- /dev/null
+++ b/drivers/scsi/bfa/bfa_itnim.c
@@ -0,0 +1,1088 @@
+/*
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+/**
+ * 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_assert(0);
+ }
+}
+
+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_assert(0);
+ }
+}
+
+
+
+/**
+ * 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));
+}
+
+