freebsd-dev/sys/dev/ispfw/ispfw.c
Alexander Motin 1b760be482 Remove parallel SCSI and 1/2Gb FC support from isp(4).
This removes 288KB (36%) of the driver code and zillions of hacks and
workarounds, making single driver uniformly support several different
generations of hardware interfaces, not counting minor card variations.
After years of the hopeless fight, I don't think it worth to continue
support for hardware obsolete for 15-20 years.  Instead much cleaner
now code should allow to move forward toward better locking, multiple
queues and other cool features.

All the remaining Qlogic cards starting from 4Gb 24xx to 32Gb 27xx use
the same hardware/firmware interface with minor incremental improvements,
so it seems to be a good new starting point.  Except one PCI-X model all
all of them are PCIe and so still usable in modern systems.

Discussed with:	ken, scottl, jpaetzel, imp
Relnotes:	yes
2020-11-20 01:15:48 +00:00

137 lines
3.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* ISP Firmware Modules for FreeBSD
*
* Copyright (c) 2000, 2001, 2006 by Matthew Jacob
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/firmware.h>
#include <sys/kernel.h>
#include <sys/linker.h>
#include <sys/module.h>
#include <sys/systm.h>
#if defined(ISP_ALL) || !defined(KLD_MODULE)
#define ISP_2400 1
#define ISP_2500 1
#endif
#ifndef MODULE_NAME
#define MODULE_NAME "ispfw"
#endif
#if defined(ISP_2400)
#include <dev/ispfw/asm_2400.h>
#endif
#if defined(ISP_2500)
#include <dev/ispfw/asm_2500.h>
#endif
#if defined(ISP_2400)
static int isp_2400_loaded;
#endif
#if defined(ISP_2500)
static int isp_2500_loaded;
#endif
#define ISPFW_VERSION 1
#define RMACRO(token) do { \
if (token##_loaded) \
break; \
if (firmware_register(#token, token##_risc_code, \
token##_risc_code[3] * sizeof(token##_risc_code[3]), \
ISPFW_VERSION, NULL) == NULL) \
break; \
token##_loaded++; \
} while (0)
#define UMACRO(token) do { \
if (!token##_loaded) \
break; \
if (firmware_unregister(#token) != 0) { \
error = EBUSY; \
break; \
} \
token##_loaded--; \
} while (0)
static int
do_load_fw(void)
{
#if defined(ISP_2400)
RMACRO(isp_2400);
#endif
#if defined(ISP_2500)
RMACRO(isp_2500);
#endif
return (0);
}
static int
do_unload_fw(void)
{
int error = 0;
#if defined(ISP_2400)
UMACRO(isp_2400);
#endif
#if defined(ISP_2500)
UMACRO(isp_2500);
#endif
return (error);
}
static int
module_handler(module_t mod, int what, void *arg)
{
switch (what) {
case MOD_LOAD:
return (do_load_fw());
case MOD_UNLOAD:
return (do_unload_fw());
}
return (EOPNOTSUPP);
}
static moduledata_t ispfw_mod = {
MODULE_NAME, module_handler, NULL
};
#if defined(ISP_ALL) || !defined(KLD_MODULE)
DECLARE_MODULE(ispfw, ispfw_mod, SI_SUB_DRIVERS, SI_ORDER_THIRD);
#elif defined(ISP_2400)
DECLARE_MODULE(isp_2400, ispfw_mod, SI_SUB_DRIVERS, SI_ORDER_THIRD);
#elif defined(ISP_2500)
DECLARE_MODULE(isp_2500, ispfw_mod, SI_SUB_DRIVERS, SI_ORDER_THIRD);
#else
#error "firmware not specified"
#endif