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freebsd-skq/sys/pci/isp_pci.c
mjacob be6c08329b Organize things to cope with the (possible) lack of downloadable 
firmware a bit better.
1999-10-30 19:35:11 +00:00

1189 lines
30 KiB
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/* $FreeBSD$ */
/*
* PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
* FreeBSD Version.
*
*---------------------------------------
* Copyright (c) 1997, 1998, 1999 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 <pci/pcireg.h>
#include <pci/pcivar.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/md_var.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));
static void
isp_pci_dmateardown __P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t));
static void isp_pci_reset1 __P((struct ispsoftc *));
static void isp_pci_dumpregs __P((struct ispsoftc *));
#ifndef ISP_CODE_ORG
#define ISP_CODE_ORG 0x1000
#endif
#ifndef ISP_1040_RISC_CODE
#define ISP_1040_RISC_CODE NULL
#endif
#ifndef ISP_1080_RISC_CODE
#define ISP_1080_RISC_CODE NULL
#endif
#ifndef ISP_2100_RISC_CODE
#define ISP_2100_RISC_CODE NULL
#endif
#ifndef ISP_2200_RISC_CODE
#define ISP_2200_RISC_CODE NULL
#endif
#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_1040_RISC_CODE,
0,
ISP_CODE_ORG,
0,
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,
ISP_1080_RISC_CODE,
0,
ISP_CODE_ORG,
0,
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,
ISP_2100_RISC_CODE,
0,
ISP_CODE_ORG,
0,
0,
0
};
#endif
#ifndef ISP_DISABLE_2200_SUPPORT
static struct ispmdvec mdvec_2200 = {
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_2200_RISC_CODE,
0,
ISP_CODE_ORG,
0,
0,
0
};
#endif
#ifndef SCSI_ISP_PREFER_MEM_MAP
#define SCSI_ISP_PREFER_MEM_MAP 0
#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
#ifndef PCI_PRODUCT_QLOGIC_ISP2200
#define PCI_PRODUCT_QLOGIC_ISP2200 0x2200
#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 PCI_QLOGIC_ISP2200 \
((PCI_PRODUCT_QLOGIC_ISP2200 << 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 const char *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 */
#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
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];
bus_dma_tag_t parent_dmat;
bus_dma_tag_t cntrol_dmat;
bus_dmamap_t cntrol_dmap;
bus_dmamap_t *dmaps;
};
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 const char *
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:
x = "Qlogic ISP 1080 PCI SCSI Adapter";
break;
case PCI_QLOGIC_ISP1240:
x = "Qlogic ISP 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
#ifndef ISP_DISABLE_2200_SUPPORT
case PCI_QLOGIC_ISP2200:
x = "Qlogic ISP 2200 PCI FC-AL Adapter";
break;
#endif
default:
return (NULL);
}
if (oneshot) {
oneshot = 0;
CFGPRINTF("Qlogic ISP Driver, FreeBSD Version %d.%d, "
"Core Version %d.%d\n",
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 cfid, int unit)
{
int mapped, prefer_mem_map, bitmap;
pci_port_t io_port;
u_int32_t data, linesz, psize, basetype;
struct isp_pcisoftc *pcs;
struct ispsoftc *isp;
vm_offset_t vaddr, paddr;
struct ispmdvec *mdvp;
bus_size_t lim;
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));
/*
* Figure out if we're supposed to skip this one.
*/
if (getenv_int("isp_disable", &bitmap)) {
if (bitmap & (1 << unit)) {
printf("isp%d: not configuring\n", unit);
return;
}
}
/*
* Figure out which we should try first - memory mapping or i/o mapping?
*/
#if SCSI_ISP_PREFER_MEM_MAP == 1
prefer_mem_map = 1;
#else
prefer_mem_map = 0;
#endif
bitmap = 0;
if (getenv_int("isp_mem_map", &bitmap)) {
if (bitmap & (1 << unit))
prefer_mem_map = 1;
}
bitmap = 0;
if (getenv_int("isp_io_map", &bitmap)) {
if (bitmap & (1 << unit))
prefer_mem_map = 0;
}
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(cfid, PCIR_COMMAND);
if (prefer_mem_map) {
if (data & PCI_COMMAND_MEM_ENABLE) {
if (pci_map_mem(cfid, 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(cfid, PCI_MAP_REG_START, &io_port)) {
pcs->pci_st = IO_SPACE_MAPPING;
pcs->pci_sh = io_port;
mapped++;
}
}
} else {
if (data & PCI_COMMAND_IO_ENABLE) {
if (pci_map_port(cfid, 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(cfid, MEM_MAP_REG, &vaddr, &paddr)) {
pcs->pci_st = MEM_SPACE_MAPPING;
pcs->pci_sh = vaddr;
mapped++;
}
}
}
if (mapped == 0) {
printf("isp%d: unable to map any ports!\n", unit);
free(pcs, M_DEVBUF);
return;
}
if (bootverbose)
printf("isp%d: using %s space register mapping\n", unit,
pcs->pci_st == IO_SPACE_MAPPING? "I/O" : "Memory");
data = pci_conf_read(cfid, 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;
/*
* GCC!
*/
mdvp = &mdvec;
basetype = ISP_HA_SCSI_UNKNOWN;
psize = sizeof (sdparam);
lim = BUS_SPACE_MAXSIZE_32BIT;
#ifndef ISP_DISABLE_1020_SUPPORT
if (data == PCI_QLOGIC_ISP) {
mdvp = &mdvec;
basetype = ISP_HA_SCSI_UNKNOWN;
psize = sizeof (sdparam);
lim = BUS_SPACE_MAXSIZE_24BIT;
}
#endif
#ifndef ISP_DISABLE_1080_SUPPORT
if (data == PCI_QLOGIC_ISP1080) {
mdvp = &mdvec_1080;
basetype = ISP_HA_SCSI_1080;
psize = sizeof (sdparam);
pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] =
ISP1080_DMA_REGS_OFF;
}
if (data == PCI_QLOGIC_ISP1240) {
mdvp = &mdvec_1080;
basetype = ISP_HA_SCSI_12X0;
psize = 2 * sizeof (sdparam);
pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] =
ISP1080_DMA_REGS_OFF;
}
#endif
#ifndef ISP_DISABLE_2100_SUPPORT
if (data == PCI_QLOGIC_ISP2100) {
mdvp = &mdvec_2100;
basetype = ISP_HA_FC_2100;
psize = sizeof (fcparam);
pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] =
PCI_MBOX_REGS2100_OFF;
data = pci_conf_read(cfid, 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
#ifndef ISP_DISABLE_2200_SUPPORT
if (data == PCI_QLOGIC_ISP2200) {
mdvp = &mdvec_2200;
basetype = ISP_HA_FC_2200;
psize = sizeof (fcparam);
pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] =
PCI_MBOX_REGS2100_OFF;
}
#endif
isp = &pcs->pci_isp;
isp->isp_param = malloc(psize, M_DEVBUF, M_NOWAIT);
if (isp->isp_param == NULL) {
printf("isp%d: cannot allocate parameter data\n", unit);
return;
}
bzero(isp->isp_param, psize);
isp->isp_mdvec = mdvp;
isp->isp_type = basetype;
(void) snprintf(isp->isp_name, sizeof (isp->isp_name), "isp%d", unit);
isp->isp_osinfo.unit = unit;
ISP_LOCK(isp);
/*
* Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER
* are set.
*/
data = pci_cfgread(cfid, PCIR_COMMAND, 2);
data |= PCIM_CMD_SEREN |
PCIM_CMD_PERRESPEN |
PCIM_CMD_BUSMASTEREN |
PCIM_CMD_INVEN;
pci_cfgwrite(cfid, PCIR_COMMAND, 2, data);
/*
* Make sure the Cache Line Size register is set sensibly.
*/
data = pci_cfgread(cfid, PCIR_CACHELNSZ, 1);
if (data != linesz) {
data = PCI_DFLT_LNSZ;
CFGPRINTF("%s: set PCI line size to %d\n", isp->isp_name, data);
pci_cfgwrite(cfid, PCIR_CACHELNSZ, data, 1);
}
/*
* Make sure the Latency Timer is sane.
*/
data = pci_cfgread(cfid, PCIR_LATTIMER, 1);
if (data < PCI_DFLT_LTNCY) {
data = PCI_DFLT_LTNCY;
CFGPRINTF("%s: set PCI latency to %d\n", isp->isp_name, data);
pci_cfgwrite(cfid, PCIR_LATTIMER, data, 1);
}
/*
* Make sure we've disabled the ROM.
*/
data = pci_cfgread(cfid, PCIR_ROMADDR, 4);
data &= ~1;
pci_cfgwrite(cfid, PCIR_ROMADDR, data, 4);
ISP_UNLOCK(isp);
if (bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR, NULL, NULL, lim + 1,
255, lim, 0, &pcs->parent_dmat) != 0) {
printf("%s: could not create master dma tag\n", isp->isp_name);
free(pcs, M_DEVBUF);
return;
}
if (pci_map_int(cfid, (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 = cfid;
#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
if (getenv_int("isp_no_fwload", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts |= ISP_CFG_NORELOAD;
}
if (getenv_int("isp_fwload", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts &= ~ISP_CFG_NORELOAD;
}
#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
if (getenv_int("isp_no_nvram", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts |= ISP_CFG_NONVRAM;
}
if (getenv_int("isp_nvram", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts &= ~ISP_CFG_NONVRAM;
}
#ifdef SCSI_ISP_FCDUPLEX
if (IS_FC(isp)) {
if (SCSI_ISP_FCDUPLEX && (SCSI_ISP_FCDUPLEX & (1 << unit))) {
isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
}
}
#endif
if (getenv_int("isp_fcduplex", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
}
if (getenv_int("isp_no_fcduplex", &bitmap)) {
if (bitmap & (1 << unit))
isp->isp_confopts &= ~ISP_CFG_FULL_DUPLEX;
}
if (getenv_int("isp_seed", &isp->isp_osinfo.seed)) {
isp->isp_osinfo.seed <<= 8;
isp->isp_osinfo.seed += (unit + 1);
} else {
/*
* poor man's attempt at pseudo randomness.
*/
long i = (intptr_t) isp;
i >>= 5;
i &= 0x7;
/*
* This isn't very random, but it's the best we can do for
* the real edge case of cards that don't have WWNs.
*/
isp->isp_osinfo.seed += ((int) cfid->bus) << 16;
isp->isp_osinfo.seed += ((int) cfid->slot) << 8;
isp->isp_osinfo.seed += ((int) cfid->func);
while (version[i])
isp->isp_osinfo.seed += (int) version[i++];
isp->isp_osinfo.seed <<= 8;
isp->isp_osinfo.seed += (unit + 1);
}
(void) getenv_int("isp_debug", &isp_debug);
ISP_LOCK(isp);
isp_reset(isp);
if (isp->isp_state != ISP_RESETSTATE) {
(void) pci_unmap_int(cfid);
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 (IS_SCSI(isp)) {
isp_uninit(isp);
(void) pci_unmap_int(cfid); /* Does nothing */
ISP_UNLOCK(isp);
free(pcs, M_DEVBUF);
return;
}
}
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);
(void) pci_unmap_int(cfid); /* Does nothing */
ISP_UNLOCK(isp);
free(pcs, M_DEVBUF);
return;
}
}
ISP_UNLOCK(isp);
#ifdef __alpha__
/*
* THIS SHOULD NOT HAVE TO BE HERE
*/
alpha_register_pci_scsi(cfid->bus, cfid->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
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));
struct imush {
struct ispsoftc *isp;
int error;
};
static void
isp_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct imush *imushp = (struct imush *) arg;
if (error) {
imushp->error = error;
} else {
imushp->isp->isp_rquest_dma = segs->ds_addr;
}
}
static void
isp_map_result(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct imush *imushp = (struct imush *) arg;
if (error) {
imushp->error = error;
} else {
imushp->isp->isp_result_dma = segs->ds_addr;
}
}
static void
isp_map_fcscrt(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct imush *imushp = (struct imush *) arg;
if (error) {
imushp->error = error;
} else {
fcparam *fcp = imushp->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;
bus_size_t lim;
struct imush im;
/*
* Already been here? If so, leave...
*/
if (isp->isp_rquest) {
return (0);
}
len = sizeof (ISP_SCSI_XFER_T **) * isp->isp_maxcmds;
isp->isp_xflist = (ISP_SCSI_XFER_T **) malloc(len, M_DEVBUF, M_WAITOK);
if (isp->isp_xflist == NULL) {
printf("%s: can't alloc xflist array\n", isp->isp_name);
return (1);
}
bzero(isp->isp_xflist, len);
len = sizeof (bus_dmamap_t) * isp->isp_maxcmds;
pci->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK);
if (pci->dmaps == NULL) {
printf("%s: can't alloc dma maps\n", isp->isp_name);
free(isp->isp_xflist, M_DEVBUF);
return (1);
}
if (IS_FC(isp) || IS_1080(isp) || IS_12X0(isp))
lim = BUS_SPACE_MAXADDR + 1;
else
lim = BUS_SPACE_MAXADDR_24BIT + 1;
/*
* 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 (IS_FC(isp)) {
len += ISP2100_SCRLEN;
}
if (bus_dma_tag_create(pci->parent_dmat, PAGE_SIZE, lim,
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);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
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);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
return (1);
}
isp->isp_rquest = base;
im.isp = isp;
im.error = 0;
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_rquest,
ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN), isp_map_rquest, &im, 0);
if (im.error) {
printf("%s: error %d loading dma map for DMA request queue\n",
isp->isp_name, im.error);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
isp->isp_rquest = NULL;
return (1);
}
isp->isp_result = base + ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN);
im.error = 0;
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_result,
ISP_QUEUE_SIZE(RESULT_QUEUE_LEN), isp_map_result, &im, 0);
if (im.error) {
printf("%s: error %d loading dma map for DMA result queue\n",
isp->isp_name, im.error);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
isp->isp_rquest = NULL;
return (1);
}
for (i = 0; i < isp->isp_maxcmds; i++) {
error = bus_dmamap_create(pci->parent_dmat, 0, &pci->dmaps[i]);
if (error) {
printf("%s: error %d creating per-cmd DMA maps\n",
isp->isp_name, error);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
isp->isp_rquest = NULL;
return (1);
}
}
if (IS_FC(isp)) {
fcparam *fcp = (fcparam *) isp->isp_param;
fcp->isp_scratch = base +
ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN) +
ISP_QUEUE_SIZE(RESULT_QUEUE_LEN);
im.error = 0;
bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap,
fcp->isp_scratch, ISP2100_SCRLEN, isp_map_fcscrt, &im, 0);
if (im.error) {
printf("%s: error %d loading FC scratch area\n",
isp->isp_name, im.error);
free(isp->isp_xflist, M_DEVBUF);
free(pci->dmaps, M_DEVBUF);
isp->isp_rquest = NULL;
return (1);
}
}
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 (IS_FC(isp)) {
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 (IS_FC(isp)) {
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 (IS_FC(isp)) {
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 = NULL;
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);
}
/*
* 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;
dp = &pci->dmaps[rq->req_handle - 1];
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) {
#ifdef DIAGNOSTIC
printf("%s: error %d in dma mapping code\n",
isp->isp_name, error);
#endif
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;
} else if (mp->error == EFBIG) {
XS_SETERR(csio, CAM_REQ_TOO_BIG);
} else if (mp->error == EINVAL) {
XS_SETERR(csio, CAM_REQ_INVALID);
} else {
XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
}
return (retval);
} else {
/*
* Check to see if we weren't cancelled while sleeping on
* getting DMA resources...
*/
if ((ccb_h->status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
if (dp) {
bus_dmamap_unload(pci->parent_dmat, *dp);
}
return (CMD_COMPLETE);
}
return (CMD_QUEUED);
}
}
static void
isp_pci_dmateardown(struct ispsoftc *isp, ISP_SCSI_XFER_T *xs, u_int32_t handle)
{
struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp;
bus_dmamap_t *dp = &pci->dmaps[handle - 1];
KASSERT((handle > 0 && handle <= isp->isp_maxcmds),
("bad handle in isp_pci_dmateardonw"));
if ((xs->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);
}
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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