283 lines
7.2 KiB
C
283 lines
7.2 KiB
C
/*-
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* Copyright (c) 2017 Broadcom. All rights reserved.
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* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/**
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* @file
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* OCS bsd driver common include file
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*/
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#if !defined(__OCS_H__)
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#define __OCS_H__
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#include "ocs_os.h"
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#include "ocs_utils.h"
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#include "ocs_hw.h"
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#include "ocs_scsi.h"
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#include "ocs_io.h"
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#include "version.h"
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#define DRV_NAME "ocs_fc"
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#define DRV_VERSION \
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STR_BE_MAJOR "." STR_BE_MINOR "." STR_BE_BUILD "." STR_BE_BRANCH
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/**
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* @brief Interrupt context
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*/
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typedef struct ocs_intr_ctx_s {
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uint32_t vec; /** Zero based interrupt vector */
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void *softc; /** software context for interrupt */
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char name[64]; /** label for this context */
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} ocs_intr_ctx_t;
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typedef struct ocs_fc_rport_db_s {
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uint32_t node_id;
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uint32_t state;
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uint8_t is_target;
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uint8_t is_initiator;
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uint32_t port_id;
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uint64_t wwnn;
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uint64_t wwpn;
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uint32_t gone_timer;
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} ocs_fc_target_t;
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#define OCS_TGT_STATE_NONE 0 /* Empty DB slot */
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#define OCS_TGT_STATE_VALID 1 /* Valid*/
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#define OCS_TGT_STATE_LOST 2 /* LOST*/
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typedef struct ocs_fcport_s {
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ocs_t *ocs;
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struct cam_sim *sim;
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struct cam_path *path;
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uint32_t role;
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uint32_t fc_id;
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ocs_fc_target_t tgt[OCS_MAX_TARGETS];
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int lost_device_time;
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struct callout ldt; /* device lost timer */
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struct task ltask;
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ocs_tgt_resource_t targ_rsrc_wildcard;
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ocs_tgt_resource_t targ_rsrc[OCS_MAX_LUN];
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ocs_vport_spec_t *vport;
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} ocs_fcport;
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#define FCPORT(ocs, chan) (&((ocs_fcport *)(ocs)->fcports)[(chan)])
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/**
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* @brief Driver's context
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*/
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struct ocs_softc {
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device_t dev;
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struct cdev *cdev;
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ocs_pci_reg_t reg[PCI_MAX_BAR];
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uint32_t instance_index;
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const char *desc;
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uint32_t irqid;
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struct resource *irq;
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void *tag;
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ocs_intr_ctx_t intr_ctx;
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uint32_t n_vec;
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bus_dma_tag_t dmat; /** Parent DMA tag */
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bus_dma_tag_t buf_dmat;/** IO buffer DMA tag */
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char display_name[OCS_DISPLAY_NAME_LENGTH];
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uint16_t pci_vendor;
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uint16_t pci_device;
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uint16_t pci_subsystem_vendor;
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uint16_t pci_subsystem_device;
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char businfo[16];
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const char *driver_version;
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const char *fw_version;
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const char *model;
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ocs_hw_t hw;
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ocs_rlock_t lock; /**< device wide lock */
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ocs_xport_e ocs_xport;
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ocs_xport_t *xport; /**< pointer to transport object */
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ocs_domain_t *domain;
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ocs_list_t domain_list;
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uint32_t domain_instance_count;
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void (*domain_list_empty_cb)(ocs_t *ocs, void *arg);
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void *domain_list_empty_cb_arg;
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uint8_t enable_ini;
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uint8_t enable_tgt;
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uint8_t fc_type;
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int ctrlmask;
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uint8_t explicit_buffer_list;
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uint8_t external_loopback;
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uint8_t skip_hw_teardown;
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int speed;
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int topology;
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int ethernet_license;
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int num_scsi_ios;
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uint8_t enable_hlm;
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uint32_t hlm_group_size;
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uint32_t max_isr_time_msec; /*>> Maximum ISR time */
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uint32_t auto_xfer_rdy_size; /*>> Max sized write to use auto xfer rdy*/
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uint8_t esoc;
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int logmask;
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char *hw_war_version;
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uint32_t num_vports;
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uint32_t target_io_timer_sec;
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uint32_t hw_bounce;
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uint8_t rq_threads;
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uint8_t rq_selection_policy;
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uint8_t rr_quanta;
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char *filter_def;
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uint32_t max_remote_nodes;
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/*
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* tgt_rscn_delay - delay in kicking off RSCN processing
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* (nameserver queries) after receiving an RSCN on the target.
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* This prevents thrashing of nameserver requests due to a huge burst of
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* RSCNs received in a short period of time.
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* Note: this is only valid when target RSCN handling is enabled -- see
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* ctrlmask.
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*/
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time_t tgt_rscn_delay_msec; /*>> minimum target RSCN delay */
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/*
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* tgt_rscn_period - determines maximum frequency when processing
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* back-to-back RSCNs; e.g. if this value is 30, there will never be
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* any more than 1 RSCN handling per 30s window. This prevents
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* initiators on a faulty link generating many RSCN from causing the
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* target to continually query the nameserver.
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* Note: This is only valid when target RSCN handling is enabled
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*/
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time_t tgt_rscn_period_msec; /*>> minimum target RSCN period */
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uint32_t enable_task_set_full;
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uint32_t io_in_use;
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uint32_t io_high_watermark; /**< used to send task set full */
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struct mtx sim_lock;
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uint32_t config_tgt:1, /**< Configured to support target mode */
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config_ini:1; /**< Configured to support initiator mode */
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uint32_t nodedb_mask; /**< Node debugging mask */
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char modeldesc[64];
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char serialnum[64];
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char fwrev[64];
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char sli_intf[9];
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ocs_ramlog_t *ramlog;
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ocs_textbuf_t ddump_saved;
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ocs_mgmt_functions_t *mgmt_functions;
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ocs_mgmt_functions_t *tgt_mgmt_functions;
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ocs_mgmt_functions_t *ini_mgmt_functions;
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ocs_err_injection_e err_injection;
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uint32_t cmd_err_inject;
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time_t delay_value_msec;
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bool attached;
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struct mtx dbg_lock;
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struct cam_devq *devq;
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ocs_fcport *fcports;
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void* tgt_ocs;
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};
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static inline void
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ocs_device_lock_init(ocs_t *ocs)
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{
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ocs_rlock_init(ocs, &ocs->lock, "ocsdevicelock");
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}
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static inline int32_t
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ocs_device_lock_try(ocs_t *ocs)
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{
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return ocs_rlock_try(&ocs->lock);
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}
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static inline void
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ocs_device_lock(ocs_t *ocs)
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{
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ocs_rlock_acquire(&ocs->lock);
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}
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static inline void
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ocs_device_unlock(ocs_t *ocs)
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{
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ocs_rlock_release(&ocs->lock);
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}
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static inline void
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ocs_device_lock_free(ocs_t *ocs)
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{
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ocs_rlock_free(&ocs->lock);
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}
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extern int32_t ocs_device_detach(ocs_t *ocs);
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extern int32_t ocs_device_attach(ocs_t *ocs);
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#define ocs_is_initiator_enabled() (ocs->enable_ini)
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#define ocs_is_target_enabled() (ocs->enable_tgt)
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#include "ocs_xport.h"
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#include "ocs_domain.h"
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#include "ocs_sport.h"
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#include "ocs_node.h"
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#include "ocs_unsol.h"
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#include "ocs_scsi.h"
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#include "ocs_ioctl.h"
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static inline ocs_io_t *
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ocs_io_alloc(ocs_t *ocs)
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{
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return ocs_io_pool_io_alloc(ocs->xport->io_pool);
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}
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static inline void
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ocs_io_free(ocs_t *ocs, ocs_io_t *io)
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{
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ocs_io_pool_io_free(ocs->xport->io_pool, io);
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}
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#endif /* __OCS_H__ */
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