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freebsd-skq/sys/dev/isp/isp_pci.c
peter 41b420910c Simplify the COMPAT_PCI_DRIVER/DATA_SET hack. We can add: 
#define COMPAT_PCI_DRIVER(name,data) DATA_SET(pcidevice_set,data)
.. to 2.2.x and 3.x if people think it's worth it.  Driver writers can do
this if it's not defined.  (The reason for this is that I'm trying to
progressively eliminate use of linker_sets where it hurts modularity and
runtime load capability, and these DATA_SET's keep getting in the way.)
1999-05-09 17:07:30 +00:00

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/* $Id: isp_pci.c,v 1.20 1999/04/24 20:14:02 peter Exp $ */
/* release_4_3_99 */
/*
* PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
* FreeBSD Version.
*
*---------------------------------------
* Copyright (c) 1997, 1998 by Matthew Jacob
* NASA/Ames Research Center
* 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. 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. 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 <dev/isp/isp_freebsd.h>
#include <dev/isp/asm_pci.h>
#include <sys/malloc.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#if __FreeBSD_version >= 300004
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#endif
#include "opt_isp.h"
static u_int16_t isp_pci_rd_reg __P((struct ispsoftc *, int));
static void isp_pci_wr_reg __P((struct ispsoftc *, int, u_int16_t));
#ifndef ISP_DISABLE_1080_SUPPORT
static u_int16_t isp_pci_rd_reg_1080 __P((struct ispsoftc *, int));
static void isp_pci_wr_reg_1080 __P((struct ispsoftc *, int, u_int16_t));
#endif
static int isp_pci_mbxdma __P((struct ispsoftc *));
static int isp_pci_dmasetup __P((struct ispsoftc *, ISP_SCSI_XFER_T *,
ispreq_t *, u_int8_t *, u_int8_t));
#if __FreeBSD_version >= 300004
static void
isp_pci_dmateardown __P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t));
#define PROBETYPE const char *
#else
typedef u_int16_t pci_port_t;
#define isp_pci_dmateardown NULL
#define PROBETYPE char *
#endif
static void isp_pci_reset1 __P((struct ispsoftc *));
static void isp_pci_dumpregs __P((struct ispsoftc *));
#ifndef ISP_DISABLE_1020_SUPPORT
static struct ispmdvec mdvec = {
isp_pci_rd_reg,
isp_pci_wr_reg,
isp_pci_mbxdma,
isp_pci_dmasetup,
isp_pci_dmateardown,
NULL,
isp_pci_reset1,
isp_pci_dumpregs,
ISP_RISC_CODE,
ISP_CODE_LENGTH,
ISP_CODE_ORG,
ISP_CODE_VERSION,
BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64,
0
};
#endif
#ifndef ISP_DISABLE_1080_SUPPORT
static struct ispmdvec mdvec_1080 = {
isp_pci_rd_reg_1080,
isp_pci_wr_reg_1080,
isp_pci_mbxdma,
isp_pci_dmasetup,
isp_pci_dmateardown,
NULL,
isp_pci_reset1,
isp_pci_dumpregs,
ISP1080_RISC_CODE,
ISP1080_CODE_LENGTH,
ISP1080_CODE_ORG,
ISP1080_CODE_VERSION,
BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64,
0
};
#endif
#ifndef ISP_DISABLE_2100_SUPPORT
static struct ispmdvec mdvec_2100 = {
isp_pci_rd_reg,
isp_pci_wr_reg,
isp_pci_mbxdma,
isp_pci_dmasetup,
isp_pci_dmateardown,
NULL,
isp_pci_reset1,
isp_pci_dumpregs,
ISP2100_RISC_CODE,
ISP2100_CODE_LENGTH,
ISP2100_CODE_ORG,
ISP2100_CODE_VERSION,
0, /* Irrelevant to the 2100 */
0
};
#endif
#ifndef SCSI_ISP_PREFER_MEM_MAP
#ifdef __alpha__
#define SCSI_ISP_PREFER_MEM_MAP 0
#else
#define SCSI_ISP_PREFER_MEM_MAP 1
#endif
#endif
#ifndef PCIM_CMD_INVEN
#define PCIM_CMD_INVEN 0x10
#endif
#ifndef PCIM_CMD_BUSMASTEREN
#define PCIM_CMD_BUSMASTEREN 0x0004
#endif
#ifndef PCIM_CMD_PERRESPEN
#define PCIM_CMD_PERRESPEN 0x0040
#endif
#ifndef PCIM_CMD_SEREN
#define PCIM_CMD_SEREN 0x0100
#endif
#ifndef PCIR_COMMAND
#define PCIR_COMMAND 0x04
#endif
#ifndef PCIR_CACHELNSZ
#define PCIR_CACHELNSZ 0x0c
#endif
#ifndef PCIR_LATTIMER
#define PCIR_LATTIMER 0x0d
#endif
#ifndef PCIR_ROMADDR
#define PCIR_ROMADDR 0x30
#endif
#ifndef PCI_VENDOR_QLOGIC
#define PCI_VENDOR_QLOGIC 0x1077
#endif
#ifndef PCI_PRODUCT_QLOGIC_ISP1020
#define PCI_PRODUCT_QLOGIC_ISP1020 0x1020
#endif
#ifndef PCI_PRODUCT_QLOGIC_ISP1080
#define PCI_PRODUCT_QLOGIC_ISP1080 0x1080
#endif
#ifndef PCI_PRODUCT_QLOGIC_ISP1240
#define PCI_PRODUCT_QLOGIC_ISP1240 0x1240
#endif
#ifndef PCI_PRODUCT_QLOGIC_ISP2100
#define PCI_PRODUCT_QLOGIC_ISP2100 0x2100
#endif
#define PCI_QLOGIC_ISP ((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC)
#define PCI_QLOGIC_ISP1080 \
((PCI_PRODUCT_QLOGIC_ISP1080 << 16) | PCI_VENDOR_QLOGIC)
#define PCI_QLOGIC_ISP1240 \
((PCI_PRODUCT_QLOGIC_ISP1240 << 16) | PCI_VENDOR_QLOGIC)
#define PCI_QLOGIC_ISP2100 \
((PCI_PRODUCT_QLOGIC_ISP2100 << 16) | PCI_VENDOR_QLOGIC)
#define IO_MAP_REG 0x10
#define MEM_MAP_REG 0x14
#define PCI_DFLT_LTNCY 0x40
#define PCI_DFLT_LNSZ 0x10
static PROBETYPE isp_pci_probe __P((pcici_t tag, pcidi_t type));
static void isp_pci_attach __P((pcici_t config_d, int unit));
/* This distinguishing define is not right, but it does work */
#if __FreeBSD_version < 300004
#define IO_SPACE_MAPPING 0
#define MEM_SPACE_MAPPING 1
typedef int bus_space_tag_t;
typedef u_long bus_space_handle_t;
typedef unsigned int __uintptr_t;
typedef __uintptr_t uintptr_t;
#ifdef __alpha__
#define bus_space_read_2(st, sh, offset) \
alpha_mb(),
(st == IO_SPACE_MAPPING)? \
inw((pci_port_t)sh + offset) : readw((pci_port_t)sh + offset)
#define bus_space_write_2(st, sh, offset, val) \
((st == IO_SPACE_MAPPING)? outw((pci_port_t)sh + offset, val) : \
writew((pci_port_t)sh + offset, val)), alpha_mb()
#else
#define bus_space_read_2(st, sh, offset) \
(st == IO_SPACE_MAPPING)? \
inw((pci_port_t)sh + offset) : *((u_int16_t *)(uintptr_t)sh)
#define bus_space_write_2(st, sh, offset, val) \
if (st == IO_SPACE_MAPPING) outw((pci_port_t)sh + offset, val); else \
*((u_int16_t *)(uintptr_t)sh) = val
#endif
#else
#ifdef __alpha__
#define IO_SPACE_MAPPING ALPHA_BUS_SPACE_IO
#define MEM_SPACE_MAPPING ALPHA_BUS_SPACE_MEM
#else
#define IO_SPACE_MAPPING I386_BUS_SPACE_IO
#define MEM_SPACE_MAPPING I386_BUS_SPACE_MEM
#endif
#endif
struct isp_pcisoftc {
struct ispsoftc pci_isp;
pcici_t pci_id;
bus_space_tag_t pci_st;
bus_space_handle_t pci_sh;
int16_t pci_poff[_NREG_BLKS];
#if __FreeBSD_version >= 300004
bus_dma_tag_t parent_dmat;
bus_dma_tag_t cntrol_dmat;
bus_dmamap_t cntrol_dmap;
bus_dmamap_t dmaps[MAXISPREQUEST];
#endif
union {
sdparam _x;
fcparam _y;
} _z;
};
static u_long ispunit;
static struct pci_device isp_pci_driver = {
"isp",
isp_pci_probe,
isp_pci_attach,
&ispunit,
NULL
};
COMPAT_PCI_DRIVER (isp_pci, isp_pci_driver);
static PROBETYPE
isp_pci_probe(pcici_t tag, pcidi_t type)
{
static int oneshot = 1;
char *x;
switch (type) {
#ifndef ISP_DISABLE_1020_SUPPORT
case PCI_QLOGIC_ISP:
x = "Qlogic ISP 1020/1040 PCI SCSI Adapter";
break;
#endif
#ifndef ISP_DISABLE_1080_SUPPORT
case PCI_QLOGIC_ISP1080:
#if 0
case PCI_QLOGIC_ISP1240: /* 1240 not ready yet */
#endif
x = "Qlogic ISP 1080/1240 PCI SCSI Adapter";
break;
#endif
#ifndef ISP_DISABLE_2100_SUPPORT
case PCI_QLOGIC_ISP2100:
x = "Qlogic ISP 2100 PCI FC-AL Adapter";
break;
#endif
default:
return (NULL);
}
if (oneshot) {
oneshot = 0;
printf("%s Version %d.%d, Core Version %d.%d\n", PVS,
ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
}
return (x);
}
static void
isp_pci_attach(pcici_t config_id, int unit)
{
int mapped;
pci_port_t io_port;
u_int32_t data, linesz;
struct isp_pcisoftc *pcs;
struct ispsoftc *isp;
vm_offset_t vaddr, paddr;
ISP_LOCKVAL_DECL;
pcs = malloc(sizeof (struct isp_pcisoftc), M_DEVBUF, M_NOWAIT);
if (pcs == NULL) {
printf("isp%d: cannot allocate softc\n", unit);
return;
}
bzero(pcs, sizeof (struct isp_pcisoftc));
vaddr = paddr = NULL;
mapped = 0;
linesz = PCI_DFLT_LNSZ;
/*
* Note that pci_conf_read is a 32 bit word aligned function.
*/
data = pci_conf_read(config_id, PCIR_COMMAND);
#if SCSI_ISP_PREFER_MEM_MAP == 1
if (mapped == 0 && (data & PCI_COMMAND_MEM_ENABLE)) {
if (pci_map_mem(config_id, MEM_MAP_REG, &vaddr, &paddr)) {
pcs->pci_st = MEM_SPACE_MAPPING;
pcs->pci_sh = vaddr;
mapped++;
}
}
if (mapped == 0 && (data & PCI_COMMAND_IO_ENABLE)) {
if (pci_map_port(config_id, PCI_MAP_REG_START, &io_port)) {
pcs->pci_st = IO_SPACE_MAPPING;
pcs->pci_sh = io_port;
mapped++;
}
}
#else
if (mapped == 0 && (data & PCI_COMMAND_IO_ENABLE)) {
if (pci_map_port(config_id, PCI_MAP_REG_START, &io_port)) {
pcs->pci_st = IO_SPACE_MAPPING;
pcs->pci_sh = io_port;
mapped++;
}
}
if (mapped == 0 && (data & PCI_COMMAND_MEM_ENABLE)) {
if (pci_map_mem(config_id, MEM_MAP_REG, &vaddr, &paddr)) {
pcs->pci_st = MEM_SPACE_MAPPING;
pcs->pci_sh = vaddr;
mapped++;
}
}
#endif
if (mapped == 0) {
printf("isp%d: unable to map any ports!\n", unit);
free(pcs, M_DEVBUF);
return;
}
printf("isp%d: using %s space register mapping\n", unit,
pcs->pci_st == IO_SPACE_MAPPING? "I/O" : "Memory");
isp = &pcs->pci_isp;
#if __FreeBSD_version >= 300006
(void) snprintf(isp->isp_name, sizeof (isp->isp_name), "isp%d", unit);
#else
(void) sprintf(isp->isp_name, "isp%d", unit);
#endif
isp->isp_osinfo.unit = unit;
data = pci_conf_read(config_id, PCI_ID_REG);
pcs->pci_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS_OFF;
pcs->pci_poff[SXP_BLOCK >> _BLK_REG_SHFT] = PCI_SXP_REGS_OFF;
pcs->pci_poff[RISC_BLOCK >> _BLK_REG_SHFT] = PCI_RISC_REGS_OFF;
pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
#ifndef ISP_DISABLE_1020_SUPPORT
if (data == PCI_QLOGIC_ISP) {
isp->isp_mdvec = &mdvec;
isp->isp_type = ISP_HA_SCSI_UNKNOWN;
isp->isp_param = &pcs->_z._x;
}
#endif
#ifndef ISP_DISABLE_1080_SUPPORT
if (data == PCI_QLOGIC_ISP1080 || data == PCI_QLOGIC_ISP1240) {
isp->isp_mdvec = &mdvec_1080;
isp->isp_type = ISP_HA_SCSI_1080;
isp->isp_param = &pcs->_z._x;
pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] =
ISP1080_DMA_REGS_OFF;
}
#endif
#ifndef ISP_DISABLE_2100_SUPPORT
if (data == PCI_QLOGIC_ISP2100) {
isp->isp_mdvec = &mdvec_2100;
isp->isp_type = ISP_HA_FC_2100;
isp->isp_param = &pcs->_z._y;
pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] =
PCI_MBOX_REGS2100_OFF;
data = pci_conf_read(config_id, PCI_CLASS_REG);
if ((data & 0xff) < 3) {
/*
* XXX: Need to get the actual revision
* XXX: number of the 2100 FB. At any rate,
* XXX: lower cache line size for early revision
* XXX; boards.
*/
linesz = 1;
}
}
#endif
#if __FreeBSD_version >= 300004
ISP_LOCK(isp);
/*
* Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER
* are set.
*/
data = pci_cfgread(config_id, PCIR_COMMAND, 2);
data |= PCIM_CMD_SEREN |
PCIM_CMD_PERRESPEN |
PCIM_CMD_BUSMASTEREN |
PCIM_CMD_INVEN;
pci_cfgwrite(config_id, PCIR_COMMAND, 2, data);
/*
* Make sure the CACHE Line Size register is set sensibly.
*/
data = pci_cfgread(config_id, PCIR_CACHELNSZ, 1);
if (data != linesz) {
data = PCI_DFLT_LNSZ;
printf("%s: set PCI line size to %d\n", isp->isp_name, data);
pci_cfgwrite(config_id, PCIR_CACHELNSZ, data, 1);
}
/*
* Make sure the Latency Timer is sane.
*/
data = pci_cfgread(config_id, PCIR_LATTIMER, 1);
if (data < PCI_DFLT_LTNCY) {
data = PCI_DFLT_LTNCY;
printf("%s: set PCI latency to %d\n", isp->isp_name, data);
pci_cfgwrite(config_id, PCIR_LATTIMER, data, 1);
}
/*
* Make sure we've disabled the ROM.
*/
data = pci_cfgread(config_id, PCIR_ROMADDR, 4);
data &= ~1;
pci_cfgwrite(config_id, PCIR_ROMADDR, data, 4);
ISP_UNLOCK(isp);
if (bus_dma_tag_create(NULL, 0, 0, BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR, NULL, NULL, 1<<24,
255, 1<<24, 0, &pcs->parent_dmat) != 0) {
printf("%s: could not create master dma tag\n", isp->isp_name);
free(pcs, M_DEVBUF);
return;
}
#else
ISP_LOCK(isp);
data = pci_conf_read(config_id, PCIR_COMMAND);
data |= PCIM_CMD_SEREN |
PCIM_CMD_PERRESPEN |
PCIM_CMD_BUSMASTEREN |
PCIM_CMD_INVEN;
pci_conf_write(config_id, PCIR_COMMAND, data);
data = pci_conf_read(config_id, PCIR_CACHELNSZ);
if ((data & ~0xffff) != ((PCI_DFLT_LTNCY << 8) | linesz)) {
data &= ~0xffff;
data |= (PCI_DFLT_LTNCY << 8) | linesz;
pci_conf_write(config_id, PCIR_CACHELNSZ, data);
printf("%s: set PCI line size to %d\n", isp->isp_name, linesz);
printf("%s: set PCI latency to %d\n", isp->isp_name,
PCI_DFLT_LTNCY);
}
/*
* Make sure we've disabled the ROM.
*/
data = pci_conf_read(config_id, PCIR_ROMADDR);
data &= ~1;
pci_conf_write(config_id, PCIR_ROMADDR, data);
ISP_UNLOCK(isp);
#endif
if (pci_map_int(config_id, (void (*)(void *))isp_intr,
(void *)isp, &IMASK) == 0) {
printf("%s: could not map interrupt\n", isp->isp_name);
free(pcs, M_DEVBUF);
return;
}
pcs->pci_id = config_id;
#ifdef SCSI_ISP_NO_FWLOAD_MASK
if (SCSI_ISP_NO_FWLOAD_MASK && (SCSI_ISP_NO_FWLOAD_MASK & (1 << unit)))
isp->isp_confopts |= ISP_CFG_NORELOAD;
#endif
#ifdef SCSI_ISP_NO_NVRAM_MASK
if (SCSI_ISP_NO_NVRAM_MASK && (SCSI_ISP_NO_NVRAM_MASK & (1 << unit))) {
printf("%s: ignoring NVRAM\n", isp->isp_name);
isp->isp_confopts |= ISP_CFG_NONVRAM;
}
#endif
ISP_LOCK(isp);
isp_reset(isp);
if (isp->isp_state != ISP_RESETSTATE) {
ISP_UNLOCK(isp);
free(pcs, M_DEVBUF);
return;
}
isp_init(isp);
if (isp->isp_state != ISP_INITSTATE) {
/* If we're a Fibre Channel Card, we allow deferred attach */
if (isp->isp_type & ISP_HA_SCSI) {
isp_uninit(isp);
free(pcs, M_DEVBUF);
}
}
isp_attach(isp);
if (isp->isp_state != ISP_RUNSTATE) {
/* If we're a Fibre Channel Card, we allow deferred attach */
if (IS_SCSI(isp)) {
isp_uninit(isp);
free(pcs, M_DEVBUF);
}
}
ISP_UNLOCK(isp);
#ifdef __alpha__
/*
* THIS SHOULD NOT HAVE TO BE HERE
*/
alpha_register_pci_scsi(config_id->bus, config_id->slot, isp->isp_sim);
#endif
}
static u_int16_t
isp_pci_rd_reg(isp, regoff)
struct ispsoftc *isp;
int regoff;
{
u_int16_t rv;
struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp;
int offset, oldconf = 0;
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
/*
* We will assume that someone has paused the RISC processor.
*/
oldconf = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oldconf | BIU_PCI_CONF1_SXP);
}
offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
rv = bus_space_read_2(pcs->pci_st, pcs->pci_sh, offset);
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
isp_pci_wr_reg(isp, BIU_CONF1, oldconf);
}
return (rv);
}
static void
isp_pci_wr_reg(isp, regoff, val)
struct ispsoftc *isp;
int regoff;
u_int16_t val;
{
struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp;
int offset, oldconf = 0;
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
/*
* We will assume that someone has paused the RISC processor.
*/
oldconf = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oldconf | BIU_PCI_CONF1_SXP);
}
offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
bus_space_write_2(pcs->pci_st, pcs->pci_sh, offset, val);
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
isp_pci_wr_reg(isp, BIU_CONF1, oldconf);
}
}
#ifndef ISP_DISABLE_1080_SUPPORT
static u_int16_t
isp_pci_rd_reg_1080(isp, regoff)
struct ispsoftc *isp;
int regoff;
{
u_int16_t rv;
struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp;
int offset, oc = 0;
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
/*
* We will assume that someone has paused the RISC processor.
*/
oc = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_SXP);
} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
oc = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_DMA);
}
offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
rv = bus_space_read_2(pcs->pci_st, pcs->pci_sh, offset);
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK ||
((regoff & _BLK_REG_MASK) == DMA_BLOCK)) {
isp_pci_wr_reg(isp, BIU_CONF1, oc);
}
return (rv);
}
static void
isp_pci_wr_reg_1080(isp, regoff, val)
struct ispsoftc *isp;
int regoff;
u_int16_t val;
{
struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp;
int offset, oc = 0;
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
/*
* We will assume that someone has paused the RISC processor.
*/
oc = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_SXP);
} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
oc = isp_pci_rd_reg(isp, BIU_CONF1);
isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_DMA);
}
offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
bus_space_write_2(pcs->pci_st, pcs->pci_sh, offset, val);
if ((regoff & _BLK_REG_MASK) == SXP_BLOCK ||
((regoff & _BLK_REG_MASK) == DMA_BLOCK)) {
isp_pci_wr_reg(isp, BIU_CONF1, oc);
}
}
#endif
#if __FreeBSD_version >= 300004
static void isp_map_rquest __P((void *, bus_dma_segment_t *, int, int));
static void isp_map_result __P((void *, bus_dma_segment_t *, int, int));
static void isp_map_fcscrt __P((void *, bus_dma_segment_t *, int, int));
static void
isp_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct ispsoftc *isp = (struct ispsoftc *) arg;
isp->isp_rquest_dma = segs->ds_addr;
}
static void
isp_map_result(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct ispsoftc *isp = (struct ispsoftc *) arg;
isp->isp_result_dma = segs->ds_addr;
}
static void
isp_map_fcscrt(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct ispsoftc *isp = (struct ispsoftc *) arg;
fcparam *fcp = isp->isp_param;
fcp->isp_scdma = segs->ds_addr;
}
static int
isp_pci_mbxdma(struct ispsoftc *isp)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
caddr_t base;
u_int32_t len;
int i, error;
/*
* Allocate and map the request, result queues, plus FC scratch area.
*/
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN);
len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN);
if (isp->isp_type & ISP_HA_FC) {
len += ISP2100_SCRLEN;
}
if (bus_dma_tag_create(pci->parent_dmat, 0, 0, BUS_SPACE_MAXADDR,
BUS_SPACE_MAXADDR, NULL, NULL, len, 1, BUS_SPACE_MAXSIZE_32BIT,
0, &pci->cntrol_dmat) != 0) {
printf("%s: cannot create a dma tag for control spaces\n",
isp->isp_name);
return (1);
}
if (bus_dmamem_alloc(pci->cntrol_dmat, (void **)&base,
BUS_DMA_NOWAIT, &pci->cntrol_dmap) != 0) {
printf("%s: cannot allocate %d bytes of CCB memory\n",
isp->isp_name, len);
return (1);
}
isp->isp_rquest = base;
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_rquest,
ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN), isp_map_rquest, pci, 0);
isp->isp_result = base + ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN);
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_result,
ISP_QUEUE_SIZE(RESULT_QUEUE_LEN), isp_map_result, pci, 0);
/*
* Use this opportunity to initialize/create data DMA maps.
*/
for (i = 0; i < MAXISPREQUEST; i++) {
error = bus_dmamap_create(pci->parent_dmat, 0, &pci->dmaps[i]);
if (error) {
printf("%s: error %d creating mailbox DMA maps\n",
isp->isp_name, error);
return (1);
}
}
if (isp->isp_type & ISP_HA_FC) {
fcparam *fcp = (fcparam *) isp->isp_param;
fcp->isp_scratch = base +
ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN) +
ISP_QUEUE_SIZE(RESULT_QUEUE_LEN);
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap,
fcp->isp_scratch, ISP2100_SCRLEN, isp_map_fcscrt, pci, 0);
}
return (0);
}
static void dma2 __P((void *, bus_dma_segment_t *, int, int));
typedef struct {
struct ispsoftc *isp;
ISP_SCSI_XFER_T *ccb;
ispreq_t *rq;
u_int8_t *iptrp;
u_int8_t optr;
u_int error;
} mush_t;
#define MUSHERR_NOQENTRIES -2
static void
dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
{
mush_t *mp;
ISP_SCSI_XFER_T *ccb;
struct ispsoftc *isp;
struct isp_pcisoftc *pci;
bus_dmamap_t *dp;
bus_dma_segment_t *eseg;
ispreq_t *rq;
u_int8_t *iptrp;
u_int8_t optr;
ispcontreq_t *crq;
int drq, seglim, datalen;
mp = (mush_t *) arg;
if (error) {
mp->error = error;
return;
}
isp = mp->isp;
if (nseg < 1) {
printf("%s: zero or negative segment count\n", isp->isp_name);
mp->error = EFAULT;
return;
}
ccb = mp->ccb;
rq = mp->rq;
iptrp = mp->iptrp;
optr = mp->optr;
pci = (struct isp_pcisoftc *)isp;
dp = &pci->dmaps[rq->req_handle - 1];
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_PREREAD);
drq = REQFLAG_DATA_IN;
} else {
bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_PREWRITE);
drq = REQFLAG_DATA_OUT;
}
datalen = XS_XFRLEN(ccb);
if (isp->isp_type & ISP_HA_FC) {
seglim = ISP_RQDSEG_T2;
((ispreqt2_t *)rq)->req_totalcnt = datalen;
((ispreqt2_t *)rq)->req_flags |= drq;
} else {
seglim = ISP_RQDSEG;
rq->req_flags |= drq;
}
eseg = dm_segs + nseg;
while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) {
if (isp->isp_type & ISP_HA_FC) {
ispreqt2_t *rq2 = (ispreqt2_t *)rq;
rq2->req_dataseg[rq2->req_seg_count].ds_base =
dm_segs->ds_addr;
rq2->req_dataseg[rq2->req_seg_count].ds_count =
dm_segs->ds_len;
} else {
rq->req_dataseg[rq->req_seg_count].ds_base =
dm_segs->ds_addr;
rq->req_dataseg[rq->req_seg_count].ds_count =
dm_segs->ds_len;
}
datalen -= dm_segs->ds_len;
#if 0
if (isp->isp_type & ISP_HA_FC) {
ispreqt2_t *rq2 = (ispreqt2_t *)rq;
printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_seg_count,
rq2->req_dataseg[rq2->req_seg_count].ds_count,
rq2->req_dataseg[rq2->req_seg_count].ds_base);
} else {
printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_seg_count,
rq->req_dataseg[rq->req_seg_count].ds_count,
rq->req_dataseg[rq->req_seg_count].ds_base);
}
#endif
rq->req_seg_count++;
dm_segs++;
}
while (datalen > 0 && dm_segs != eseg) {
crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp);
*iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN);
if (*iptrp == optr) {
#if 0
printf("%s: Request Queue Overflow++\n", isp->isp_name);
#endif
mp->error = MUSHERR_NOQENTRIES;
return;
}
rq->req_header.rqs_entry_count++;
bzero((void *)crq, sizeof (*crq));
crq->req_header.rqs_entry_count = 1;
crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
seglim = 0;
while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) {
crq->req_dataseg[seglim].ds_base =
dm_segs->ds_addr;
crq->req_dataseg[seglim].ds_count =
dm_segs->ds_len;
#if 0
printf("%s: seg%d[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_header.rqs_entry_count-1,
seglim, crq->req_dataseg[seglim].ds_count,
crq->req_dataseg[seglim].ds_base);
#endif
rq->req_seg_count++;
dm_segs++;
seglim++;
datalen -= dm_segs->ds_len;
}
}
}
static int
isp_pci_dmasetup(struct ispsoftc *isp, ISP_SCSI_XFER_T *ccb, ispreq_t *rq,
u_int8_t *iptrp, u_int8_t optr)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
struct ccb_hdr *ccb_h;
struct ccb_scsiio *csio;
bus_dmamap_t *dp;
mush_t mush, *mp;
csio = (struct ccb_scsiio *) ccb;
ccb_h = &csio->ccb_h;
if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_NONE) {
rq->req_seg_count = 1;
return (CMD_QUEUED);
}
dp = &pci->dmaps[rq->req_handle - 1];
/*
* Do a virtual grapevine step to collect info for
* the callback dma allocation that we have to use...
*/
mp = &mush;
mp->isp = isp;
mp->ccb = ccb;
mp->rq = rq;
mp->iptrp = iptrp;
mp->optr = optr;
mp->error = 0;
if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
int error, s;
s = splsoftvm();
error = bus_dmamap_load(pci->parent_dmat, *dp,
csio->data_ptr, csio->dxfer_len, dma2, mp, 0);
if (error == EINPROGRESS) {
bus_dmamap_unload(pci->parent_dmat, *dp);
mp->error = EINVAL;
printf("%s: deferred dma allocation not "
"supported\n", isp->isp_name);
} else if (error && mp->error == 0) {
mp->error = error;
}
splx(s);
} else {
/* Pointer to physical buffer */
struct bus_dma_segment seg;
seg.ds_addr = (bus_addr_t)csio->data_ptr;
seg.ds_len = csio->dxfer_len;
dma2(mp, &seg, 1, 0);
}
} else {
struct bus_dma_segment *segs;
if ((ccb_h->flags & CAM_DATA_PHYS) != 0) {
printf("%s: Physical segment pointers unsupported",
isp->isp_name);
mp->error = EINVAL;
} else if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) {
printf("%s: Virtual segment addresses unsupported",
isp->isp_name);
mp->error = EINVAL;
} else {
/* Just use the segments provided */
segs = (struct bus_dma_segment *) csio->data_ptr;
dma2(mp, segs, csio->sglist_cnt, 0);
}
}
if (mp->error) {
int retval = CMD_COMPLETE;
if (mp->error == MUSHERR_NOQENTRIES) {
retval = CMD_EAGAIN;
ccb_h->status = CAM_UNREC_HBA_ERROR;
} else if (mp->error == EFBIG) {
ccb_h->status = CAM_REQ_TOO_BIG;
} else if (mp->error == EINVAL) {
ccb_h->status = CAM_REQ_INVALID;
} else {
ccb_h->status = CAM_UNREC_HBA_ERROR;
}
return (retval);
} else {
return (CMD_QUEUED);
}
}
static void
isp_pci_dmateardown(struct ispsoftc *isp, ISP_SCSI_XFER_T *ccb,
u_int32_t handle)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
bus_dmamap_t *dp = &pci->dmaps[handle];
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_POSTREAD);
} else {
bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_POSTWRITE);
}
bus_dmamap_unload(pci->parent_dmat, *dp);
}
#else /* __FreeBSD_version >= 300004 */
static int
isp_pci_mbxdma(struct ispsoftc *isp)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
u_int32_t len;
int rseg;
/* XXXX CHECK FOR ALIGNMENT */
/*
* Allocate and map the request queue.
*/
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN);
isp->isp_rquest = malloc(len, M_DEVBUF, M_NOWAIT);
if (isp->isp_rquest == NULL) {
printf("%s: cannot malloc request queue\n", isp->isp_name);
return (1);
}
isp->isp_rquest_dma = vtophys(isp->isp_rquest);
#if 0
printf("RQUEST=0x%x (0x%x)...", isp->isp_rquest, isp->isp_rquest_dma);
#endif
/*
* Allocate and map the result queue.
*/
len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN);
isp->isp_result = malloc(len, M_DEVBUF, M_NOWAIT);
if (isp->isp_result == NULL) {
free(isp->isp_rquest, M_DEVBUF);
printf("%s: cannot malloc result queue\n", isp->isp_name);
return (1);
}
isp->isp_result_dma = vtophys(isp->isp_result);
#if 0
printf("RESULT=0x%x (0x%x)\n", isp->isp_result, isp->isp_result_dma);
#endif
if (isp->isp_type & ISP_HA_FC) {
fcparam *fcp = isp->isp_param;
len = ISP2100_SCRLEN;
fcp->isp_scratch = (volatile caddr_t)
malloc(ISP2100_SCRLEN, M_DEVBUF, M_NOWAIT);
if (fcp->isp_scratch == NULL) {
printf("%s: cannot alloc scratch\n", isp->isp_name);
return (1);
}
fcp->isp_scdma = vtophys(fcp->isp_scratch);
}
return (0);
}
static int
isp_pci_dmasetup(struct ispsoftc *isp, ISP_SCSI_XFER_T *xs,
ispreq_t *rq, u_int8_t *iptrp, u_int8_t optr)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
ispcontreq_t *crq;
vm_offset_t vaddr;
int drq, seglim;
u_int32_t paddr, nextpaddr, datalen, size, *ctrp;
if (xs->datalen == 0) {
rq->req_seg_count = 1;
return (CMD_QUEUED);
}
if (xs->flags & SCSI_DATA_IN) {
drq = REQFLAG_DATA_IN;
} else {
drq = REQFLAG_DATA_OUT;
}
if (isp->isp_type & ISP_HA_FC) {
seglim = ISP_RQDSEG_T2;
((ispreqt2_t *)rq)->req_totalcnt = XS_XFRLEN(xs);
((ispreqt2_t *)rq)->req_flags |= drq;
} else {
seglim = ISP_RQDSEG;
rq->req_flags |= drq;
}
datalen = XS_XFRLEN(xs);
vaddr = (vm_offset_t) xs->data;
paddr = vtophys(vaddr);
while (datalen != 0 && rq->req_seg_count < seglim) {
if (isp->isp_type & ISP_HA_FC) {
ispreqt2_t *rq2 = (ispreqt2_t *)rq;
rq2->req_dataseg[rq2->req_seg_count].ds_base = paddr;
ctrp = &rq2->req_dataseg[rq2->req_seg_count].ds_count;
} else {
rq->req_dataseg[rq->req_seg_count].ds_base = paddr;
ctrp = &rq->req_dataseg[rq->req_seg_count].ds_count;
}
nextpaddr = paddr;
*(ctrp) = 0;
while (datalen != 0 && paddr == nextpaddr) {
nextpaddr = (paddr & (~PAGE_MASK)) + PAGE_SIZE;
size = nextpaddr - paddr;
if (size > datalen)
size = datalen;
*(ctrp) += size;
vaddr += size;
datalen -= size;
if (datalen != 0)
paddr = vtophys(vaddr);
}
#if 0
if (isp->isp_type & ISP_HA_FC) {
ispreqt2_t *rq2 = (ispreqt2_t *)rq;
printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_seg_count,
rq2->req_dataseg[rq2->req_seg_count].ds_count,
rq2->req_dataseg[rq2->req_seg_count].ds_base);
} else {
printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_seg_count,
rq->req_dataseg[rq->req_seg_count].ds_count,
rq->req_dataseg[rq->req_seg_count].ds_base);
}
#endif
rq->req_seg_count++;
}
if (datalen == 0)
return (CMD_QUEUED);
paddr = vtophys(vaddr);
while (datalen > 0) {
crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp);
*iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN);
if (*iptrp == optr) {
printf("%s: Request Queue Overflow\n", isp->isp_name);
XS_SETERR(xs, HBA_BOTCH);
return (CMD_EAGAIN);
}
rq->req_header.rqs_entry_count++;
bzero((void *)crq, sizeof (*crq));
crq->req_header.rqs_entry_count = 1;
crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
for (seglim = 0; datalen != 0 && seglim < ISP_CDSEG; seglim++) {
crq->req_dataseg[seglim].ds_base = paddr;
ctrp = &crq->req_dataseg[seglim].ds_count;
*(ctrp) = 0;
nextpaddr = paddr;
while (datalen != 0 && paddr == nextpaddr) {
nextpaddr = (paddr & (~PAGE_MASK)) + PAGE_SIZE;
size = nextpaddr - paddr;
if (size > datalen)
size = datalen;
*(ctrp) += size;
vaddr += size;
datalen -= size;
if (datalen != 0)
paddr = vtophys(vaddr);
}
#if 0
printf("%s: seg%d[%d] cnt 0x%x paddr 0x%08x\n",
isp->isp_name, rq->req_header.rqs_entry_count-1,
seglim, crq->req_dataseg[seglim].ds_count,
crq->req_dataseg[seglim].ds_base);
#endif
rq->req_seg_count++;
}
}
return (CMD_QUEUED);
}
#endif
static void
isp_pci_reset1(struct ispsoftc *isp)
{
/* Make sure the BIOS is disabled */
isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS);
}
static void
isp_pci_dumpregs(struct ispsoftc *isp)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
printf("%s: PCI Status Command/Status=%lx\n", pci->pci_isp.isp_name,
pci_conf_read(pci->pci_id, PCIR_COMMAND));
}
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