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freebsd-dev/sys/dev/tws/tws.h
Pedro F. Giffuni 7282444b10 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:36:21 +00:00

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2010, LSI Corp.
* All rights reserved.
* Author : Manjunath Ranganathaiah
* Support: freebsdraid@lsi.com
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of the <ORGANIZATION> nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h> /* defines used in kernel.h */
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/kernel.h> /* types used in module initialization */
#include <sys/conf.h> /* cdevsw struct */
#include <sys/uio.h> /* uio struct */
#include <sys/malloc.h>
#include <sys/bus.h> /* structs, prototypes for pci bus stuff */
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h> /* For pci_get macros! */
#include <dev/pci/pcireg.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#define TWS_PULL_MODE_ENABLE 1
MALLOC_DECLARE(M_TWS);
/* externs */
extern int tws_queue_depth;
#define TWS_DRIVER_VERSION_STRING "10.80.00.005"
#define TWS_MAX_NUM_UNITS 65
#define TWS_MAX_NUM_LUNS 32
#define TWS_MAX_IRQS 2
#define TWS_SCSI_INITIATOR_ID 66
#define TWS_MAX_IO_SIZE 0x20000 /* 128kB */
#define TWS_SECTOR_SIZE 0x200
#define TWS_POLL_TIMEOUT 60
#define TWS_IO_TIMEOUT 60
#define TWS_IOCTL_TIMEOUT 60
#define TWS_RESET_TIMEOUT 60
#define TWS_PCI_BAR0 0x10
#define TWS_PCI_BAR1 0x14
#define TWS_PCI_BAR2 0x1C
#define TWS_VENDOR_ID 0x13C1
#define TWS_DEVICE_ID 0x1010
#define TWS_INVALID_REQID 0xFFFF
/* bus tag related */
#define TWS_ALIGNMENT 4
#define TWS_IN_MF_ALIGNMENT 16
#define TWS_OUT_MF_ALIGNMENT 4
#define TWS_MAX_32BIT_SG_ELEMENTS 93 /* max 32-bit sg elements */
#define TWS_MAX_64BIT_SG_ELEMENTS 46 /* max 64-bit sg elements */
#define TWS_MAX_QS 4
#define TWS_MAX_REQS 256
#define TWS_RESERVED_REQS 4
/* Request states */
#define TWS_REQ_STATE_FREE 0
#define TWS_REQ_STATE_BUSY 1
#define TWS_REQ_STATE_TRAN 2
#define TWS_REQ_STATE_COMPLETE 3
/* Request types */
#define TWS_REQ_TYPE_INTERNAL_CMD 0x0
#define TWS_REQ_TYPE_AEN_FETCH 0x1
#define TWS_REQ_TYPE_PASSTHRU 0x2
#define TWS_REQ_TYPE_GETSET_PARAM 0x3
#define TWS_REQ_TYPE_SCSI_IO 0x4
/* Driver states */
enum tws_states {
TWS_INIT=50,
TWS_UNINIT,
TWS_OFFLINE,
TWS_ONLINE,
TWS_RESET,
};
/* events */
enum tws_events {
TWS_INIT_START=100,
TWS_INIT_COMPLETE,
TWS_UNINIT_START,
TWS_RESET_START,
TWS_RESET_COMPLETE,
TWS_SCAN_FAILURE,
};
enum tws_req_flags {
TWS_DIR_UNKNOWN = 0x1,
TWS_DIR_IN = 0x2,
TWS_DIR_OUT = 0x4,
TWS_DIR_NONE = 0x8,
TWS_DATA_CCB = 0x10,
};
enum tws_intrs {
TWS_INTx,
TWS_MSI,
TWS_MSIX,
};
struct tws_msix_info {
int tbl_res_id;
bus_space_tag_t tbl_tag;
bus_space_handle_t tbl_handle;
struct resource *tbl_res;
};
struct tws_ioctl_lock {
u_int32_t lock;
time_t timeout;
};
#define TWS_TRACE_FNAME_LEN 10
#define TWS_TRACE_FUNC_LEN 15
#define TWS_TRACE_DESC_LEN 10
struct tws_trace_rec {
struct timespec ts;
char fname[TWS_TRACE_FNAME_LEN];
char func[TWS_TRACE_FUNC_LEN];
int linenum;
char desc[TWS_TRACE_DESC_LEN];
u_int64_t val1;
u_int64_t val2;
};
struct tws_circular_q {
volatile int16_t head;
volatile int16_t tail;
u_int16_t depth;
u_int8_t overflow;
void * q;
};
struct tws_stats {
u_int64_t reqs_in;
u_int64_t reqs_out;
u_int64_t reqs_errored;
u_int64_t spurios_intrs;
u_int64_t num_intrs;
u_int64_t num_aens;
u_int64_t ioctls;
u_int64_t scsi_ios;
};
struct tws_init_connect_info {
u_int16_t working_srl;
u_int16_t working_branch;
u_int16_t working_build;
u_int16_t fw_on_ctlr_srl;
u_int16_t fw_on_ctlr_branch;
u_int16_t fw_on_ctlr_build;
};
/* ------------ boolean types ------------------- */
#ifndef __bool_true_false_are_defined
typedef enum _boolean { false, true } boolean;
#else
#define boolean bool
#endif
enum err { SUCCESS, FAILURE };
/* ----------- per instance data ---------------- */
/* The softc holds our per-instance data. */
struct tws_softc {
device_t tws_dev; /* bus device */
struct cdev *tws_cdev; /* controller device */
u_int32_t device_id; /* device id */
u_int32_t subvendor_id; /* device id */
u_int32_t subdevice_id; /* device id */
u_int8_t tws_state; /* driver state */
u_int8_t tws_prev_state; /* driver prev state */
struct sysctl_ctx_list tws_clist; /* sysctl context */
struct sysctl_oid *tws_oidp; /* sysctl context */
struct resource *reg_res; /* register interface window */
struct resource *mfa_res; /* mfa interface window */
int reg_res_id; /* register resource id */
int mfa_res_id; /* register resource id */
bus_space_handle_t bus_handle; /* bus space handle */
bus_space_handle_t bus_mfa_handle; /* bus space handle */
bus_space_tag_t bus_tag; /* bus space tag */
bus_space_tag_t bus_mfa_tag; /* bus space tag for mfa's */
u_int64_t mfa_base; /* mfa base address */
struct resource *irq_res[TWS_MAX_IRQS];/* interrupt resource */
int irq_res_id[TWS_MAX_IRQS]; /* intr resource id */
void *intr_handle[TWS_MAX_IRQS]; /* interrupt handle */
int irqs; /* intrs used */
struct tws_msix_info msix; /* msix info */
struct cam_sim *sim; /* sim for this controller */
struct cam_path *path; /* Ctlr path to CAM */
struct mtx q_lock; /* queue lock */
struct mtx sim_lock; /* sim lock */
struct mtx gen_lock; /* general driver lock */
struct mtx io_lock; /* IO lock */
struct tws_ioctl_lock ioctl_lock; /* ioctl lock */
u_int32_t seq_id; /* Sequence id */
struct tws_circular_q aen_q; /* aen q */
struct tws_circular_q trace_q; /* trace q */
struct tws_stats stats; /* I/O stats */
struct tws_init_connect_info cinfo; /* compatibility info */
boolean is64bit; /* True - 64bit else 32bit */
u_int8_t intr_type; /* Interrupt type used */
bus_dma_tag_t parent_tag; /* parent DMA tag */
bus_dma_tag_t cmd_tag; /* command DMA tag */
bus_dmamap_t cmd_map; /* command map */
void *dma_mem; /* pointer to dmable memory */
u_int64_t dma_mem_phys; /* phy addr */
bus_dma_tag_t data_tag; /* data DMA tag */
void *ioctl_data_mem; /* ioctl dmable memory */
bus_dmamap_t ioctl_data_map; /* ioctl data map */
struct tws_request *reqs; /* pointer to requests */
struct tws_sense *sense_bufs; /* pointer to sense buffers */
boolean obfl_q_overrun; /* OBFL overrun flag */
union ccb *scan_ccb; /* pointer to a ccb */
struct tws_request *q_head[TWS_MAX_QS]; /* head pointers to q's */
struct tws_request *q_tail[TWS_MAX_QS]; /* tail pointers to q's */
struct callout stats_timer;
};
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