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freebsd-dev/sys/pci/isp_pci.c
Matt Jacob 9637d68c97 Fix dmasetup functions to have 16 bit queue indices. Get the chip revision 
out of the PCI CLASS reg and store it in the softc. Use the getenv_quad
function to get a WWN override from the environment. Look for a config
value for same. Make slightly less lame the wwn seed construction.
1999-11-21 02:56:17 +00:00

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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_int16_t *, u_int16_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)
{
#ifdef SCSI_ISP_WWN
const char *name = SCSI_ISP_WWN;
char *vtp = NULL;
#endif
int mapped, prefer_mem_map, bitmap;
pci_port_t io_port;
u_int32_t data, rev, 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);
rev = pci_conf_read(cfid, PCI_CLASS_REG) & 0xff; /* revision */
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;
if (rev < 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;
isp->isp_revision = rev;
(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;
}
/*
* Look for overriding WWN. This is a Node WWN so it binds to
* all FC instances. A Port WWN will be constructed from it
* as appropriate.
*/
#ifdef SCSI_ISP_WWN
isp->isp_osinfo.default_wwn = strtoq(name, &vtp, 16);
if (vtp != name && *vtp == 0) {
isp->isp_confopts |= ISP_CFG_OWNWWN;
} else
#endif
if (!getenv_quad("isp_wwn", (quad_t *) &isp->isp_osinfo.default_wwn)) {
int i;
u_int64_t seed = (u_int64_t) (intptr_t) isp;
seed <<= 16;
seed &= ((1LL << 48) - 1LL);
/*
* 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. If
* you recompile a new vers.c, you'll get a different WWN.
*/
for (i = 0; version[i] != 0; i++) {
seed += version[i];
}
/*
* Make sure the top nibble has something vaguely sensible.
*/
isp->isp_osinfo.default_wwn |= (4LL << 60) | seed;
} else {
isp->isp_confopts |= ISP_CFG_OWNWWN;
}
(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);
}
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_int16_t *iptrp;
u_int16_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_int16_t *iptrp;
u_int16_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_int16_t *iptrp, u_int16_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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