a85e26c4bf
issues which they found and asked to be changed so 3ware can offcially support the driver. Summary of the most significant changes: - TWE_OVERRIDE is no longer supported - If twe_getparam failed, bogus data would be returned to the caller - Cache the device unit in the twe_drive structure to aid debugging - Add the 3ware driver version. - Proper return error codes for many functions. - Track the minimum queue length statistics - 4.x compat: use the cached unit number from the twe_drive structure instead of the the cached si_drv2. 3ware found that after many loads and unloads that si_drv2 became corrupted. This did not happen in -current. Submitted by: Vinod Kashyap (with modifications by me) Approved by: re (rwatson)
106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2000 Michael Smith
|
|
* Copyright (c) 2003 Paul Saab
|
|
* Copyright (c) 2003 Vinod Kashyap
|
|
* Copyright (c) 2000 BSDi
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
|
|
/*
|
|
* User-space command
|
|
*
|
|
* Note that the command's scatter/gather list will be computed by the
|
|
* driver, and cannot be filled in by the consumer.
|
|
*/
|
|
struct twe_usercommand {
|
|
TWE_Command tu_command; /* command ready for the controller */
|
|
void *tu_data; /* pointer to data in userspace */
|
|
size_t tu_size; /* userspace data length */
|
|
};
|
|
|
|
#define TWEIO_COMMAND _IOWR('T', 100, struct twe_usercommand)
|
|
|
|
/*
|
|
* Command queue statistics
|
|
*/
|
|
#define TWEQ_FREE 0
|
|
#define TWEQ_BIO 1
|
|
#define TWEQ_READY 2
|
|
#define TWEQ_BUSY 3
|
|
#define TWEQ_COMPLETE 4
|
|
#define TWEQ_COUNT 5 /* total number of queues */
|
|
|
|
struct twe_qstat {
|
|
u_int32_t q_length;
|
|
u_int32_t q_max;
|
|
u_int32_t q_min;
|
|
};
|
|
|
|
/*
|
|
* Statistics request
|
|
*/
|
|
union twe_statrequest {
|
|
u_int32_t ts_item;
|
|
struct twe_qstat ts_qstat;
|
|
};
|
|
|
|
#define TWEIO_STATS _IOWR('T', 101, union twe_statrequest)
|
|
|
|
/*
|
|
* AEN listen
|
|
*/
|
|
#define TWEIO_AEN_POLL _IOR('T', 102, u_int16_t)
|
|
#define TWEIO_AEN_WAIT _IOR('T', 103, u_int16_t)
|
|
|
|
/*
|
|
* Controller parameter access
|
|
*/
|
|
struct twe_paramcommand {
|
|
u_int16_t tp_table_id;
|
|
u_int8_t tp_param_id;
|
|
void *tp_data;
|
|
u_int8_t tp_size;
|
|
};
|
|
|
|
#define TWEIO_SET_PARAM _IOW ('T', 104, struct twe_paramcommand)
|
|
#define TWEIO_GET_PARAM _IOW ('T', 105, struct twe_paramcommand)
|
|
|
|
/*
|
|
* Request a controller soft-reset
|
|
*/
|
|
#define TWEIO_RESET _IO ('T', 106)
|
|
|
|
/*
|
|
* Request a drive addition or deletion
|
|
*/
|
|
struct twe_drivecommand {
|
|
int td_unit;
|
|
};
|
|
|
|
#define TWEIO_ADD_UNIT _IOW ('U', 107, int)
|
|
#define TWEIO_DEL_UNIT _IOW ('U', 108, int)
|