312 lines
8.1 KiB
C
312 lines
8.1 KiB
C
/* $wasabi: ld_twa.c,v 1.9 2006/02/14 18:44:37 jordanr Exp $ */
|
|
/* $NetBSD: ld_twa.c,v 1.15 2012/02/02 19:43:06 tls Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2000, 2001, 2002, 2003, 2004 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Andrew Doran, and by Jason R. Thorpe and Jordan Rhody of Wasabi
|
|
* Systems, Inc.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* 3ware "Apache" RAID controller front-end for ld(4) driver.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: ld_twa.c,v 1.15 2012/02/02 19:43:06 tls Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/bufq.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/dkio.h>
|
|
#include <sys/disk.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/rnd.h>
|
|
|
|
#include <sys/bus.h>
|
|
|
|
#include <dev/ldvar.h>
|
|
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsipi_disk.h>
|
|
#include <dev/scsipi/scsipiconf.h>
|
|
#include <dev/scsipi/scsi_disk.h>
|
|
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/twareg.h>
|
|
#include <dev/pci/twavar.h>
|
|
|
|
struct ld_twa_softc {
|
|
struct ld_softc sc_ld;
|
|
int sc_hwunit;
|
|
};
|
|
|
|
static void ld_twa_attach(device_t, device_t, void *);
|
|
static int ld_twa_detach(device_t, int);
|
|
static int ld_twa_dobio(struct ld_twa_softc *, void *, size_t, daddr_t,
|
|
struct buf *);
|
|
static int ld_twa_dump(struct ld_softc *, void *, int, int);
|
|
static int ld_twa_flush(struct ld_softc *, int);
|
|
static void ld_twa_handler(struct twa_request *);
|
|
static int ld_twa_match(device_t, cfdata_t, void *);
|
|
static int ld_twa_start(struct ld_softc *, struct buf *);
|
|
|
|
static void ld_twa_adjqparam(device_t, int);
|
|
|
|
static int ld_twa_scsicmd(struct ld_twa_softc *,
|
|
struct twa_request *, struct buf *);
|
|
|
|
CFATTACH_DECL_NEW(ld_twa, sizeof(struct ld_twa_softc),
|
|
ld_twa_match, ld_twa_attach, ld_twa_detach, NULL);
|
|
|
|
static const struct twa_callbacks ld_twa_callbacks = {
|
|
ld_twa_adjqparam,
|
|
};
|
|
|
|
static int
|
|
ld_twa_match(device_t parent, cfdata_t match, void *aux)
|
|
{
|
|
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
ld_twa_attach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct twa_attach_args *twa_args = aux;
|
|
struct ld_twa_softc *sc = device_private(self);
|
|
struct ld_softc *ld = &sc->sc_ld;
|
|
struct twa_softc *twa = device_private(parent);
|
|
|
|
ld->sc_dv = self;
|
|
|
|
twa_register_callbacks(twa, twa_args->twaa_unit, &ld_twa_callbacks);
|
|
|
|
sc->sc_hwunit = twa_args->twaa_unit;
|
|
ld->sc_maxxfer = twa_get_maxxfer(twa_get_maxsegs());
|
|
ld->sc_secperunit = twa->sc_units[sc->sc_hwunit].td_size;
|
|
ld->sc_flags = LDF_ENABLED;
|
|
ld->sc_secsize = TWA_SECTOR_SIZE;
|
|
ld->sc_maxqueuecnt = twa->sc_units[sc->sc_hwunit].td_openings;
|
|
ld->sc_start = ld_twa_start;
|
|
ld->sc_dump = ld_twa_dump;
|
|
ld->sc_flush = ld_twa_flush;
|
|
ldattach(ld);
|
|
}
|
|
|
|
static int
|
|
ld_twa_detach(device_t self, int flags)
|
|
{
|
|
struct ld_twa_softc *sc = device_private(self);
|
|
struct ld_softc *ld = &sc->sc_ld;
|
|
int error;
|
|
|
|
if ((error = ldbegindetach(ld, flags)) != 0)
|
|
return (error);
|
|
ldenddetach(ld);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ld_twa_dobio(struct ld_twa_softc *sc, void *data, size_t datasize,
|
|
daddr_t blkno, struct buf *bp)
|
|
{
|
|
int rv;
|
|
struct twa_request *tr;
|
|
struct twa_softc *twa;
|
|
|
|
twa = device_private(device_parent(sc->sc_ld.sc_dv));
|
|
|
|
if ((tr = twa_get_request(twa, 0)) == NULL) {
|
|
return (EAGAIN);
|
|
}
|
|
if (bp->b_flags & B_READ) {
|
|
tr->tr_flags = TWA_CMD_DATA_OUT;
|
|
} else {
|
|
tr->tr_flags = TWA_CMD_DATA_IN;
|
|
}
|
|
|
|
tr->tr_data = data;
|
|
tr->tr_length = datasize;
|
|
tr->tr_cmd_pkt_type =
|
|
(TWA_CMD_PKT_TYPE_9K | TWA_CMD_PKT_TYPE_EXTERNAL);
|
|
|
|
tr->tr_command->cmd_hdr.header_desc.size_header = 128;
|
|
|
|
tr->tr_command->command.cmd_pkt_9k.command.opcode =
|
|
TWA_OP_EXECUTE_SCSI_COMMAND;
|
|
tr->tr_command->command.cmd_pkt_9k.unit =
|
|
sc->sc_hwunit;
|
|
tr->tr_command->command.cmd_pkt_9k.request_id =
|
|
tr->tr_request_id;
|
|
tr->tr_command->command.cmd_pkt_9k.status = 0;
|
|
tr->tr_command->command.cmd_pkt_9k.sgl_entries = 1;
|
|
tr->tr_command->command.cmd_pkt_9k.sgl_offset = 16;
|
|
|
|
/* offset from end of hdr = max cdb len */
|
|
ld_twa_scsicmd(sc, tr, bp);
|
|
|
|
tr->tr_callback = ld_twa_handler;
|
|
tr->tr_ld_sc = sc;
|
|
|
|
tr->bp = bp;
|
|
|
|
rv = twa_map_request(tr);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
ld_twa_start(struct ld_softc *ld, struct buf *bp)
|
|
{
|
|
|
|
return (ld_twa_dobio((struct ld_twa_softc *)ld, bp->b_data,
|
|
bp->b_bcount, bp->b_rawblkno, bp));
|
|
}
|
|
|
|
static void
|
|
ld_twa_handler(struct twa_request *tr)
|
|
{
|
|
uint8_t status;
|
|
struct buf *bp;
|
|
struct ld_twa_softc *sc;
|
|
struct twa_softc *twa;
|
|
|
|
bp = tr->bp;
|
|
sc = (struct ld_twa_softc *)tr->tr_ld_sc;
|
|
twa = device_private(device_parent(sc->sc_ld.sc_dv));
|
|
|
|
status = tr->tr_command->command.cmd_pkt_9k.status;
|
|
|
|
if (status != 0) {
|
|
bp->b_error = EIO;
|
|
bp->b_resid = bp->b_bcount;
|
|
} else {
|
|
bp->b_resid = 0;
|
|
bp->b_error = 0;
|
|
}
|
|
twa_release_request(tr);
|
|
|
|
lddone(&sc->sc_ld, bp);
|
|
}
|
|
|
|
static int
|
|
ld_twa_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt)
|
|
{
|
|
|
|
#if 0
|
|
/* XXX Unsafe right now. */
|
|
return (ld_twa_dobio((struct ld_twa_softc *)ld, data,
|
|
blkcnt * ld->sc_secsize, blkno, NULL));
|
|
#else
|
|
return EIO;
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
static int
|
|
ld_twa_flush(struct ld_softc *ld, int flags)
|
|
{
|
|
int s, rv = 0;
|
|
struct twa_request *tr;
|
|
struct twa_softc *twa = device_private(device_parent(ld->sc_dv));
|
|
struct ld_twa_softc *sc = (void *)ld;
|
|
struct twa_command_generic *generic_cmd;
|
|
|
|
/* Get a request packet. */
|
|
tr = twa_get_request_wait(twa, 0);
|
|
KASSERT(tr != NULL);
|
|
|
|
tr->tr_cmd_pkt_type =
|
|
(TWA_CMD_PKT_TYPE_9K | TWA_CMD_PKT_TYPE_EXTERNAL);
|
|
|
|
tr->tr_callback = twa_request_wait_handler;
|
|
tr->tr_ld_sc = sc;
|
|
|
|
tr->tr_command->cmd_hdr.header_desc.size_header = 128;
|
|
|
|
generic_cmd = &(tr->tr_command->command.cmd_pkt_7k.generic);
|
|
generic_cmd->opcode = TWA_OP_FLUSH;
|
|
generic_cmd->size = 2;
|
|
generic_cmd->unit = sc->sc_hwunit;
|
|
generic_cmd->request_id = tr->tr_request_id;
|
|
generic_cmd->sgl_offset = 0;
|
|
generic_cmd->host_id = 0;
|
|
generic_cmd->status = 0;
|
|
generic_cmd->flags = 0;
|
|
generic_cmd->count = 0;
|
|
rv = twa_map_request(tr);
|
|
s = splbio();
|
|
while (tr->tr_status != TWA_CMD_COMPLETE)
|
|
if ((rv = tsleep(tr, PRIBIO, "twaflush", 60 * hz)) != 0)
|
|
break;
|
|
twa_release_request(tr);
|
|
splx(s);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static void
|
|
ld_twa_adjqparam(device_t self, int openings)
|
|
{
|
|
struct ld_twa_softc *sc = device_private(self);
|
|
struct ld_softc *ld = &sc->sc_ld;
|
|
|
|
ldadjqparam(ld, openings);
|
|
}
|
|
|
|
|
|
static int
|
|
ld_twa_scsicmd(struct ld_twa_softc *sc,
|
|
struct twa_request *tr, struct buf *bp)
|
|
{
|
|
if (tr->tr_flags == TWA_CMD_DATA_IN) {
|
|
tr->tr_command->command.cmd_pkt_9k.cdb[0] = WRITE_16;
|
|
} else {
|
|
tr->tr_command->command.cmd_pkt_9k.cdb[0] = READ_16;
|
|
}
|
|
tr->tr_command->command.cmd_pkt_9k.cdb[1] =
|
|
(sc->sc_hwunit << 5); /* lun for CDB */
|
|
|
|
_lto8b(htole64(bp->b_rawblkno),
|
|
&tr->tr_command->command.cmd_pkt_9k.cdb[2]);
|
|
_lto4b(htole32((bp->b_bcount / TWA_SECTOR_SIZE)),
|
|
&tr->tr_command->command.cmd_pkt_9k.cdb[10]);
|
|
|
|
tr->tr_command->command.cmd_pkt_9k.cdb[14] = 0;
|
|
tr->tr_command->command.cmd_pkt_9k.cdb[15] = 0;
|
|
|
|
return (0);
|
|
}
|