diff options
author | mjacob <mjacob@FreeBSD.org> | 2002-07-11 03:25:04 +0000 |
---|---|---|
committer | mjacob <mjacob@FreeBSD.org> | 2002-07-11 03:25:04 +0000 |
commit | 69551f9a0059a33a7d4ffaf6a9dcab5279da5fea (patch) | |
tree | 4cdda3097fefd6ca5dc914e1e615c16f4926b81b | |
parent | af8ddb129a4bbe666a284d2c9cf34784d4f8236e (diff) | |
download | FreeBSD-src-69551f9a0059a33a7d4ffaf6a9dcab5279da5fea.zip FreeBSD-src-69551f9a0059a33a7d4ffaf6a9dcab5279da5fea.tar.gz |
'Support' for ISP SBus cards.
This code does not imply that SBus cards work yet. They hang for me.
But I can't netboot the latest snapshot on my ultra1e, and things
hang at bus_setup_intr time.
Since I'm offline for a while, I thought I'd toss this in in case somebody
else who has a bit better luck wants to fart around with it. Please try
and wait until I get back to check things in.
-rw-r--r-- | sys/dev/isp/isp_freebsd.c | 4 | ||||
-rw-r--r-- | sys/dev/isp/isp_freebsd.h | 5 | ||||
-rw-r--r-- | sys/dev/isp/isp_inline.h | 1 | ||||
-rw-r--r-- | sys/dev/isp/isp_pci.c | 11 | ||||
-rw-r--r-- | sys/dev/isp/isp_sbus.c | 841 |
5 files changed, 853 insertions, 9 deletions
diff --git a/sys/dev/isp/isp_freebsd.c b/sys/dev/isp/isp_freebsd.c index eaffd4a..8a1d244 100644 --- a/sys/dev/isp/isp_freebsd.c +++ b/sys/dev/isp/isp_freebsd.c @@ -34,6 +34,9 @@ #include <dev/isp/isp_ioctl.h> +int isp_announced = 0; +ispfwfunc *isp_get_firmware_p = NULL; + static d_ioctl_t ispioctl; static void isp_intr_enable(void *); static void isp_cam_async(void *, u_int32_t, struct cam_path *, void *); @@ -2075,7 +2078,6 @@ isp_action(struct cam_sim *sim, union ccb *ccb) } cv_signal(&isp->isp_osinfo.kthread_cv); isp_freeze_loopdown(isp, "isp_action(RQLATER)"); - isp->isp_osinfo.simqfrozen |= SIMQFRZ_LOOPDOWN; XS_SETERR(ccb, CAM_REQUEUE_REQ); ISPLOCK_2_CAMLOCK(isp); xpt_done(ccb); diff --git a/sys/dev/isp/isp_freebsd.h b/sys/dev/isp/isp_freebsd.h index 79b3485..bcdcde3 100644 --- a/sys/dev/isp/isp_freebsd.h +++ b/sys/dev/isp/isp_freebsd.h @@ -365,6 +365,11 @@ extern void isp_attach(struct ispsoftc *); extern void isp_uninit(struct ispsoftc *); /* + * driver global data + */ +extern int isp_announced; + +/* * Platform private flags */ #define ISP_SPRIV_ERRSET 0x1 diff --git a/sys/dev/isp/isp_inline.h b/sys/dev/isp/isp_inline.h index 535be2b..8f82013 100644 --- a/sys/dev/isp/isp_inline.h +++ b/sys/dev/isp/isp_inline.h @@ -31,6 +31,7 @@ */ #ifndef _ISP_INLINE_H #define _ISP_INLINE_H + /* * Handle Functions. * For each outstanding command there will be a non-zero handle. diff --git a/sys/dev/isp/isp_pci.c b/sys/dev/isp/isp_pci.c index c37ea96..1664b47 100644 --- a/sys/dev/isp/isp_pci.c +++ b/sys/dev/isp/isp_pci.c @@ -62,10 +62,6 @@ isp_pci_dmateardown(struct ispsoftc *, XS_T *, u_int16_t); static void isp_pci_reset1(struct ispsoftc *); static void isp_pci_dumpregs(struct ispsoftc *, const char *); -#ifndef ISP_CODE_ORG -#define ISP_CODE_ORG 0x1000 -#endif - static struct ispmdvec mdvec = { isp_pci_rd_isr, isp_pci_rd_reg, @@ -266,7 +262,7 @@ struct isp_pcisoftc { bus_dma_tag_t dmat; bus_dmamap_t *dmaps; }; -ispfwfunc *isp_get_firmware_p = NULL; +extern ispfwfunc *isp_get_firmware_p; static device_method_t isp_pci_methods[] = { /* Device interface */ @@ -281,7 +277,6 @@ static driver_t isp_pci_driver = { }; static devclass_t isp_devclass; DRIVER_MODULE(isp, pci, isp_pci_driver, isp_devclass, 0, 0); -MODULE_VERSION(isp, 1); static int isp_pci_probe(device_t dev) @@ -320,11 +315,12 @@ isp_pci_probe(device_t dev) default: return (ENXIO); } - if (device_get_unit(dev) == 0 && bootverbose) { + if (isp_announced == 0 && bootverbose) { printf("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); + isp_announced++; } /* * XXXX: Here is where we might load the f/w module @@ -689,7 +685,6 @@ isp_pci_attach(device_t dev) } isp_debug = 0; - isp_debug = 0; (void) resource_int_value(device_get_name(dev), device_get_unit(dev), "debug", &isp_debug); diff --git a/sys/dev/isp/isp_sbus.c b/sys/dev/isp/isp_sbus.c new file mode 100644 index 0000000..c2c4b50 --- /dev/null +++ b/sys/dev/isp/isp_sbus.c @@ -0,0 +1,841 @@ +/* $FreeBSD$ */ +/* + * PCI specific probe and attach routines for Qlogic ISP SCSI adapters. + * FreeBSD Version. + * + * Copyright (c) 1997, 1998, 1999, 2000, 2001 by Matthew Jacob + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice immediately at the beginning of the file, without modification, + * this list of conditions, and the following disclaimer. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/resource.h> +#include <machine/bus.h> +#include <machine/ofw_machdep.h> +#include <machine/resource.h> +#include <sys/rman.h> +#include <ofw/openfirm.h> +#include <sparc64/sbus/sbusvar.h> + +#include <dev/isp/isp_freebsd.h> + +static u_int16_t isp_sbus_rd_reg(struct ispsoftc *, int); +static void isp_sbus_wr_reg(struct ispsoftc *, int, u_int16_t); +static int +isp_sbus_rd_isr(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *); +static int isp_sbus_mbxdma(struct ispsoftc *); +static int +isp_sbus_dmasetup(struct ispsoftc *, XS_T *, ispreq_t *, u_int16_t *, u_int16_t); +static void +isp_sbus_dmateardown(struct ispsoftc *, XS_T *, u_int16_t); + +static void isp_sbus_reset1(struct ispsoftc *); +static void isp_sbus_dumpregs(struct ispsoftc *, const char *); + +static struct ispmdvec mdvec = { + isp_sbus_rd_isr, + isp_sbus_rd_reg, + isp_sbus_wr_reg, + isp_sbus_mbxdma, + isp_sbus_dmasetup, + isp_sbus_dmateardown, + NULL, + isp_sbus_reset1, + isp_sbus_dumpregs, + NULL, + BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64 +}; + +static int isp_sbus_probe (device_t); +static int isp_sbus_attach (device_t); + + +struct isp_sbussoftc { + struct ispsoftc sbus_isp; + device_t sbus_dev; + struct resource * sbus_reg; + bus_space_tag_t sbus_st; + bus_space_handle_t sbus_sh; + void * ih; + int16_t sbus_poff[_NREG_BLKS]; + bus_dma_tag_t dmat; + bus_dmamap_t *dmaps; + sdparam sbus_param; + struct ispmdvec sbus_mdvec; + struct resource * sbus_ires; +}; + +extern ispfwfunc *isp_get_firmware_p; + +static device_method_t isp_sbus_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, isp_sbus_probe), + DEVMETHOD(device_attach, isp_sbus_attach), + { 0, 0 } +}; +static void isp_sbus_intr(void *); + +static driver_t isp_sbus_driver = { + "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc) +}; +static devclass_t isp_devclass; +DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0); + +static int +isp_sbus_probe(device_t dev) +{ + int found = 0; + char *name = sbus_get_name(dev); + if (strcmp(name, "SUNW,isp") == 0 || + strcmp(name, "QLGC,isp") == 0 || + strcmp(name, "ptisp") == 0 || + strcmp(name, "PTI,ptisp") == 0) { + found++; + } + if (!found) + return (ENXIO); + + if (isp_announced == 0 && bootverbose) { + printf("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); + isp_announced++; + } + return (0); +} + +static int +isp_sbus_attach(device_t dev) +{ + struct resource *regs; + int tval, iqd, isp_debug, role, rid, ispburst, freq; + struct isp_sbussoftc *sbs; + struct ispsoftc *isp = NULL; + int locksetup = 0; + + /* + * Figure out if we're supposed to skip this one. + * If we are, we actually go to ISP_ROLE_NONE. + */ + + tval = 0; + if (resource_int_value(device_get_name(dev), device_get_unit(dev), + "disable", &tval) == 0 && tval) { + device_printf(dev, "device is disabled\n"); + /* but return 0 so the !$)$)*!$*) unit isn't reused */ + return (0); + } + + role = 0; + if (resource_int_value(device_get_name(dev), device_get_unit(dev), + "role", &role) == 0 && + ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) { + device_printf(dev, "setting role to 0x%x\n", role); + } else { +#ifdef ISP_TARGET_MODE + role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET; +#else + role = ISP_DEFAULT_ROLES; +#endif + } + + sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO); + if (sbs == NULL) { + device_printf(dev, "cannot allocate softc\n"); + return (ENOMEM); + } + + regs = NULL; + iqd = 0; + + rid = 0; + regs = + bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); + if (regs == 0) { + device_printf(dev, "unable to map registers\n"); + goto bad; + } + sbs->sbus_dev = dev; + sbs->sbus_reg = regs; + sbs->sbus_st = rman_get_bustag(regs); + sbs->sbus_sh = rman_get_bushandle(regs); + sbs->sbus_mdvec = mdvec; + + sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; + sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; + sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; + sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; + sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; + isp = &sbs->sbus_isp; + isp->isp_mdvec = &sbs->sbus_mdvec; + isp->isp_bustype = ISP_BT_SBUS; + isp->isp_type = ISP_HA_SCSI_UNKNOWN; + isp->isp_param = &sbs->sbus_param; + isp->isp_revision = 0; /* XXX */ + isp->isp_role = role; + isp->isp_dev = dev; + + freq = sbus_get_clockfreq(dev); + if (freq) { + /* + * Convert from HZ to MHz, rounding up. + */ + freq = (freq + 500000)/1000000; + } else { + freq = 25000000; + } + sbs->sbus_mdvec.dv_clock = freq; + + /* + * Now figure out what the proper burst sizes, etc., to use. + * Unfortunately, there is no ddi_dma_burstsizes here which + * walks up the tree finding the limiting burst size node (if + * any). We just use what's here for isp. + */ + ispburst = sbus_get_burstsz(dev); + if (ispburst == 0) { + ispburst = SBUS_BURST_32 - 1; + } + sbs->sbus_mdvec.dv_conf1 = 0; + if (ispburst & (1 << 5)) { + sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; + } else if (ispburst & (1 << 4)) { + sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; + } else if (ispburst & (1 << 3)) { + sbs->sbus_mdvec.dv_conf1 = + BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; + } + if (sbs->sbus_mdvec.dv_conf1) { + sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; + } + + /* + * Some early versions of the PTI SBus adapter + * would fail in trying to download (via poking) + * FW. We give up on them. + */ + if (strcmp("PTI,ptisp", sbus_get_name(dev)) == 0 || + strcmp("ptisp", sbus_get_name(dev)) == 0) { + sbs->sbus_mdvec.dv_ispfw = NULL; + } + /* + * Try and find firmware for this device. + */ + + if (isp_get_firmware_p) { + (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw); + } + + iqd = 0; + sbs->sbus_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, + 1, RF_ACTIVE | RF_SHAREABLE); + if (sbs->sbus_ires == NULL) { + device_printf(dev, "could not allocate interrupt\n"); + goto bad; + } +isp_prt(isp, ISP_LOGALL, "HERE %d", __LINE__); + + tval = 0; + if (resource_int_value(device_get_name(dev), device_get_unit(dev), + "fwload_disable", &tval) == 0 && tval != 0) { + isp->isp_confopts |= ISP_CFG_NORELOAD; + } + tval = 0; + if (resource_int_value(device_get_name(dev), device_get_unit(dev), + "ignore_nvram", &tval) == 0 && tval != 0) { + isp->isp_confopts |= ISP_CFG_NONVRAM; + } + + isp_debug = 0; + (void) resource_int_value(device_get_name(dev), device_get_unit(dev), + "debug", &isp_debug); +isp_prt(isp, ISP_LOGALL, "HERE %d", __LINE__); + + /* Make sure the lock is set up. */ + mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF); + locksetup++; + +isp_prt(isp, ISP_LOGALL, "HERE %d", __LINE__); + +#ifdef ISP_SMPLOCK +#define INTR_FLAGS INTR_TYPE_CAM | INTR_MPSAFE | INTR_ENTROPY +#else +#define INTR_FLAGS INTR_TYPE_CAM | INTR_ENTROPY +#endif + if (bus_setup_intr(dev, sbs->sbus_ires, INTR_FLAGS, + isp_sbus_intr, isp, &sbs->ih)) { + device_printf(dev, "could not setup interrupt\n"); + goto bad; + } + +isp_prt(isp, ISP_LOGALL, "HERE %d", __LINE__); + /* + * Set up logging levels. + */ + if (isp_debug) { + isp->isp_dblev = isp_debug; + } else { + isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; + } + if (bootverbose) + isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; + +isp_prt(isp, ISP_LOGALL, "HERE %d", __LINE__); + + /* + * Make sure we're in reset state. + */ + ISP_LOCK(isp); + isp_reset(isp); + if (isp->isp_state != ISP_RESETSTATE) { + ISP_UNLOCK(isp); + goto bad; + } + isp_init(isp); + if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) { + isp_uninit(isp); + ISP_UNLOCK(isp); + goto bad; + } + isp_attach(isp); + if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) { + isp_uninit(isp); + ISP_UNLOCK(isp); + goto bad; + } + /* + * XXXX: Here is where we might unload the f/w module + * XXXX: (or decrease the reference count to it). + */ + ISP_UNLOCK(isp); + return (0); + +bad: + + if (sbs && sbs->ih) { + (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih); + } + + if (locksetup && isp) { + mtx_destroy(&isp->isp_osinfo.lock); + } + + if (sbs && sbs->sbus_ires) { + bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires); + } + + + if (regs) { + (void) bus_release_resource(dev, 0, 0, regs); + } + + if (sbs) { + if (sbs->sbus_isp.isp_param) + free(sbs->sbus_isp.isp_param, M_DEVBUF); + free(sbs, M_DEVBUF); + } + + /* + * XXXX: Here is where we might unload the f/w module + * XXXX: (or decrease the reference count to it). + */ + return (ENXIO); +} + +static void +isp_sbus_intr(void *arg) +{ + struct ispsoftc *isp = arg; + u_int16_t isr, sema, mbox; + + ISP_LOCK(isp); + isp->isp_intcnt++; + if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { + isp->isp_intbogus++; + } else { + int iok = isp->isp_osinfo.intsok; + isp->isp_osinfo.intsok = 0; + isp_intr(isp, isr, sema, mbox); + isp->isp_osinfo.intsok = iok; + } + ISP_UNLOCK(isp); +} + +#define IspVirt2Off(a, x) \ + (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ + _BLK_REG_SHFT] + ((x) & 0xff)) + +#define BXR2(sbc, off) \ + bus_space_read_2(sbc->sbus_st, sbc->sbus_sh, off) + +static int +isp_sbus_rd_isr(struct ispsoftc *isp, u_int16_t *isrp, + u_int16_t *semap, u_int16_t *mbp) +{ + struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; + u_int16_t isr, sema; + + isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); + sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); + isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); + isr &= INT_PENDING_MASK(isp); + sema &= BIU_SEMA_LOCK; + if (isr == 0 && sema == 0) { + return (0); + } + *isrp = isr; + if ((*semap = sema) != 0) { + *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); + } + return (1); +} + +static u_int16_t +isp_sbus_rd_reg(struct ispsoftc *isp, int regoff) +{ + u_int16_t rval; + struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; + int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; + offset += (regoff & 0xff); + rval = bus_space_read_2(sbs->sbus_st, sbs->sbus_sh, offset); + isp_prt(isp, ISP_LOGDEBUG3, + "isp_sbus_rd_reg(off %x) = %x", regoff, rval); + return (rval); +} + +static void +isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int16_t val) +{ + struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp; + int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; + offset += (regoff & 0xff); + isp_prt(isp, ISP_LOGDEBUG3, + "isp_sbus_wr_reg(off %x) = %x", regoff, val); + bus_space_write_2(sbs->sbus_st, sbs->sbus_sh, offset, val); +} + +struct imush { + struct ispsoftc *isp; + int error; +}; + +static void imc(void *, bus_dma_segment_t *, int, int); + +static void +imc(void *arg, bus_dma_segment_t *segs, int nseg, int error) +{ + struct imush *imushp = (struct imush *) arg; + if (error) { + imushp->error = error; + } else { + struct ispsoftc *isp =imushp->isp; + bus_addr_t addr = segs->ds_addr; + + isp->isp_rquest_dma = addr; + addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); + isp->isp_result_dma = addr; + } +} + +/* + * Should be BUS_SPACE_MAXSIZE, but MAXPHYS is larger than BUS_SPACE_MAXSIZE + */ +#define ISP_NSEGS ((MAXPHYS / PAGE_SIZE) + 1) + +static int +isp_sbus_mbxdma(struct ispsoftc *isp) +{ + struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; + caddr_t base; + u_int32_t len; + int i, error, ns; + bus_size_t bl; + struct imush im; + + /* + * Already been here? If so, leave... + */ + if (isp->isp_rquest) { + return (0); + } + + bl = BUS_SPACE_MAXADDR_24BIT; + + if (bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR, + BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE, + ISP_NSEGS, bl, 0, &sbs->dmat)) { + isp_prt(isp, ISP_LOGERR, "could not create master dma tag"); + return(1); + } + + + len = sizeof (XS_T **) * isp->isp_maxcmds; + isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO); + if (isp->isp_xflist == NULL) { + isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); + return (1); + } + len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; + sbs->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK); + if (sbs->dmaps == NULL) { + isp_prt(isp, ISP_LOGERR, "can't alloc dma map storage"); + free(isp->isp_xflist, M_DEVBUF); + return (1); + } + + /* + * Allocate and map the request, result queues, plus FC scratch area. + */ + len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); + len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); + + ns = (len / PAGE_SIZE) + 1; + if (bus_dma_tag_create(sbs->dmat, QENTRY_LEN, 0, BUS_SPACE_MAXADDR, + BUS_SPACE_MAXADDR, NULL, NULL, len, ns, bl, 0, &isp->isp_cdmat)) { + isp_prt(isp, ISP_LOGERR, + "cannot create a dma tag for control spaces"); + free(sbs->dmaps, M_DEVBUF); + free(isp->isp_xflist, M_DEVBUF); + return (1); + } + + if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT, + &isp->isp_cdmap) != 0) { + isp_prt(isp, ISP_LOGERR, + "cannot allocate %d bytes of CCB memory", len); + bus_dma_tag_destroy(isp->isp_cdmat); + free(isp->isp_xflist, M_DEVBUF); + free(sbs->dmaps, M_DEVBUF); + return (1); + } + + for (i = 0; i < isp->isp_maxcmds; i++) { + error = bus_dmamap_create(sbs->dmat, 0, &sbs->dmaps[i]); + if (error) { + isp_prt(isp, ISP_LOGERR, + "error %d creating per-cmd DMA maps", error); + while (--i >= 0) { + bus_dmamap_destroy(sbs->dmat, sbs->dmaps[i]); + } + goto bad; + } + } + + im.isp = isp; + im.error = 0; + bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0); + if (im.error) { + isp_prt(isp, ISP_LOGERR, + "error %d loading dma map for control areas", im.error); + goto bad; + } + + isp->isp_rquest = base; + base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); + isp->isp_result = base; + return (0); + +bad: + bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap); + bus_dma_tag_destroy(isp->isp_cdmat); + free(isp->isp_xflist, M_DEVBUF); + free(sbs->dmaps, M_DEVBUF); + isp->isp_rquest = NULL; + return (1); +} + +typedef struct { + struct ispsoftc *isp; + void *cmd_token; + void *rq; + u_int16_t *nxtip; + u_int16_t optr; + u_int error; +} mush_t; + +#define MUSHERR_NOQENTRIES -2 + + +static void dma2(void *, bus_dma_segment_t *, int, int); + +static void +dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) +{ + mush_t *mp; + struct ispsoftc *isp; + struct ccb_scsiio *csio; + struct isp_sbussoftc *sbs; + bus_dmamap_t *dp; + bus_dma_segment_t *eseg; + ispreq_t *rq; + int seglim, datalen; + u_int16_t nxti; + + mp = (mush_t *) arg; + if (error) { + mp->error = error; + return; + } + + if (nseg < 1) { + isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg); + mp->error = EFAULT; + return; + } + csio = mp->cmd_token; + isp = mp->isp; + rq = mp->rq; + sbs = (struct isp_sbussoftc *)mp->isp; + dp = &sbs->dmaps[isp_handle_index(rq->req_handle)]; + nxti = *mp->nxtip; + + if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { + bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREREAD); + } else { + bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREWRITE); + } + + datalen = XS_XFRLEN(csio); + + /* + * We're passed an initial partially filled in entry that + * has most fields filled in except for data transfer + * related values. + * + * Our job is to fill in the initial request queue entry and + * then to start allocating and filling in continuation entries + * until we've covered the entire transfer. + */ + + if (csio->cdb_len > 12) { + seglim = 0; + } else { + seglim = ISP_RQDSEG; + } + if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { + rq->req_flags |= REQFLAG_DATA_IN; + } else { + rq->req_flags |= REQFLAG_DATA_OUT; + } + + eseg = dm_segs + nseg; + + while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) { + 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; + rq->req_seg_count++; + dm_segs++; + } + + while (datalen > 0 && dm_segs != eseg) { + u_int16_t onxti; + ispcontreq_t local, *crq = &local, *cqe; + + cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti); + onxti = nxti; + nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp)); + if (nxti == mp->optr) { + isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++"); + mp->error = MUSHERR_NOQENTRIES; + return; + } + rq->req_header.rqs_entry_count++; + MEMZERO((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; + rq->req_seg_count++; + dm_segs++; + seglim++; + datalen -= dm_segs->ds_len; + } + isp_put_cont_req(isp, crq, cqe); + MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN); + } + *mp->nxtip = nxti; +} + +static int +isp_sbus_dmasetup(struct ispsoftc *isp, struct ccb_scsiio *csio, ispreq_t *rq, + u_int16_t *nxtip, u_int16_t optr) +{ + struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; + ispreq_t *qep; + bus_dmamap_t *dp = NULL; + mush_t mush, *mp; + void (*eptr)(void *, bus_dma_segment_t *, int, int); + + qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx); + eptr = dma2; + + + if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || + (csio->dxfer_len == 0)) { + rq->req_seg_count = 1; + goto mbxsync; + } + + /* + * Do a virtual grapevine step to collect info for + * the callback dma allocation that we have to use... + */ + mp = &mush; + mp->isp = isp; + mp->cmd_token = csio; + mp->rq = rq; + mp->nxtip = nxtip; + mp->optr = optr; + mp->error = 0; + + if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) { + if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) { + int error, s; + dp = &sbs->dmaps[isp_handle_index(rq->req_handle)]; + s = splsoftvm(); + error = bus_dmamap_load(sbs->dmat, *dp, + csio->data_ptr, csio->dxfer_len, eptr, mp, 0); + if (error == EINPROGRESS) { + bus_dmamap_unload(sbs->dmat, *dp); + mp->error = EINVAL; + isp_prt(isp, ISP_LOGERR, + "deferred dma allocation not supported"); + } else if (error && mp->error == 0) { +#ifdef DIAGNOSTIC + isp_prt(isp, ISP_LOGERR, + "error %d in dma mapping code", 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; + (*eptr)(mp, &seg, 1, 0); + } + } else { + struct bus_dma_segment *segs; + + if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) { + isp_prt(isp, ISP_LOGERR, + "Physical segment pointers unsupported"); + mp->error = EINVAL; + } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) { + isp_prt(isp, ISP_LOGERR, + "Virtual segment addresses unsupported"); + mp->error = EINVAL; + } else { + /* Just use the segments provided */ + segs = (struct bus_dma_segment *) csio->data_ptr; + (*eptr)(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); + } +mbxsync: + switch (rq->req_header.rqs_entry_type) { + case RQSTYPE_REQUEST: + isp_put_request(isp, rq, qep); + break; + case RQSTYPE_CMDONLY: + isp_put_extended_request(isp, (ispextreq_t *)rq, + (ispextreq_t *)qep); + break; + } + return (CMD_QUEUED); +} + +static void +isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int16_t handle) +{ + struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp; + bus_dmamap_t *dp = &sbs->dmaps[isp_handle_index(handle)]; + if ((xs->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { + bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTREAD); + } else { + bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTWRITE); + } + bus_dmamap_unload(sbs->dmat, *dp); +} + + +static void +isp_sbus_reset1(struct ispsoftc *isp) +{ + /* enable interrupts */ + ENABLE_INTS(isp); +} + +static void +isp_sbus_dumpregs(struct ispsoftc *isp, const char *msg) +{ + if (msg) + printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg); + else + printf("%s:\n", device_get_nameunit(isp->isp_dev)); + printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1)); + printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR), + ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA)); + printf("risc_hccr=%x\n", ISP_READ(isp, HCCR)); + + + ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE); + printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n", + ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS), + ISP_READ(isp, CDMA_FIFO_STS)); + printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n", + ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS), + ISP_READ(isp, DDMA_FIFO_STS)); + printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n", + ISP_READ(isp, SXP_INTERRUPT), + ISP_READ(isp, SXP_GROSS_ERR), + ISP_READ(isp, SXP_PINS_CTRL)); + ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); + printf(" mbox regs: %x %x %x %x %x\n", + ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1), + ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3), + ISP_READ(isp, OUTMAILBOX4)); +} |