diff options
Diffstat (limited to 'sys/dev/ic')
| -rw-r--r-- | sys/dev/ic/ami.c | 77 | ||||
| -rw-r--r-- | sys/dev/ic/amivar.h | 5 |
2 files changed, 47 insertions, 35 deletions
diff --git a/sys/dev/ic/ami.c b/sys/dev/ic/ami.c index 65d1d4b7100..f67b4115cd3 100644 --- a/sys/dev/ic/ami.c +++ b/sys/dev/ic/ami.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ami.c,v 1.133 2006/03/20 10:10:59 dlg Exp $ */ +/* $OpenBSD: ami.c,v 1.134 2006/03/20 10:49:53 dlg Exp $ */ /* * Copyright (c) 2001 Michael Shalayeff @@ -55,6 +55,7 @@ #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/proc.h> +#include <sys/lock.h> #include <machine/bus.h> @@ -561,6 +562,9 @@ ami_attach(struct ami_softc *sc) printf("%s: firmware buggy, limiting access to first logical " "disk\n", DEVNAME(sc)); + /* lock around ioctl requests */ + lockinit(&sc->sc_lock, PZERO, DEVNAME(sc), 0, 0); + #if NBIO > 0 if (bio_register(&sc->sc_dev, ami_ioctl) != 0) printf("%s: controller registration failed", DEVNAME(sc)); @@ -1598,7 +1602,6 @@ int ami_ioctl(struct device *dev, u_long cmd, caddr_t addr) { struct ami_softc *sc = (struct ami_softc *)dev; - int s; int error = 0; AMI_DPRINTF(AMI_D_IOCTL, ("%s: ioctl ", DEVNAME(sc))); @@ -1606,14 +1609,6 @@ ami_ioctl(struct device *dev, u_long cmd, caddr_t addr) if (sc->sc_flags & AMI_BROKEN) return (ENODEV); /* can't do this to broken device for now */ - s = splbio(); - if (sc->sc_flags & AMI_CMDWAIT) { - splx(s); - return (EBUSY); - } - - sc->sc_flags |= AMI_CMDWAIT; - switch (cmd) { case BIOCINQ: AMI_DPRINTF(AMI_D_IOCTL, ("inq ")); @@ -1645,10 +1640,6 @@ ami_ioctl(struct device *dev, u_long cmd, caddr_t addr) error = EINVAL; } - sc->sc_flags &= ~AMI_CMDWAIT; - - splx(s); - return (error); } @@ -1660,10 +1651,17 @@ ami_drv_inq(struct ami_softc *sc, u_int8_t ch, u_int8_t tg, u_int8_t page, struct ami_passthrough *pt; struct scsi_inquiry_data *inq = inqbuf; int error = 0; + int s; + + lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL); + s = splbio(); ccb = ami_get_ccb(sc); - if (ccb == NULL) - return (ENOMEM); + splx(s); + if (ccb == NULL) { + error = ENOMEM; + goto err; + } ccb->ccb_done = ami_done_ioctl; @@ -1693,8 +1691,8 @@ ami_drv_inq(struct ami_softc *sc, u_int8_t ch, u_int8_t tg, u_int8_t page, if (ami_load_ptmem(sc, ccb, inqbuf, sizeof(struct scsi_inquiry_data), 1, 0) != 0) { - ami_put_ccb(ccb); - return (ENOMEM); + error = ENOMEM; + goto ptmemerr; } ami_start(sc, ccb); @@ -1716,8 +1714,13 @@ ami_drv_inq(struct ami_softc *sc, u_int8_t ch, u_int8_t tg, u_int8_t page, else if ((inq->device & SID_TYPE) != T_DIRECT) error = EINVAL; +ptmemerr: + s = splbio(); ami_put_ccb(ccb); + splx(s); +err: + lockmgr(&sc->sc_lock, LK_RELEASE, NULL); return (error); } @@ -1729,15 +1732,23 @@ ami_mgmt(struct ami_softc *sc, u_int8_t opcode, u_int8_t par1, u_int8_t par2, struct ami_iocmd *cmd; struct ami_mem *am = NULL; char *idata = NULL; - int error = EINVAL; + int error = 0; + int s; + + lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL); + s = splbio(); ccb = ami_get_ccb(sc); - if (ccb == NULL) - return (ENOMEM); + splx(s); + if (ccb == NULL) { + error = ENOMEM; + goto err; + } if (size) { if ((am = ami_allocmem(sc, size)) == NULL) { - ami_put_ccb(ccb); + error = ENOMEM; + goto memerr; return (ENOMEM); } idata = AMIMEM_KVA(am); @@ -1754,10 +1765,6 @@ ami_mgmt(struct ami_softc *sc, u_int8_t opcode, u_int8_t par1, u_int8_t par2, */ switch (opcode) { case AMI_SPEAKER: - if (!idata) { - ami_put_ccb(ccb); - return (ENOMEM); - } *idata = par1; break; default: @@ -1773,17 +1780,21 @@ ami_mgmt(struct ami_softc *sc, u_int8_t opcode, u_int8_t par1, u_int8_t par2, while (ccb->ccb_state != AMI_CCB_READY) tsleep(ccb, PRIBIO,"ami_mgmt", 0); - if (!(ccb->ccb_flags & AMI_CCB_F_ERR)) { - if (buffer && size) - memcpy(buffer, idata, size); - - error = 0; - } + if (ccb->ccb_flags & AMI_CCB_F_ERR) + error = EIO; + else if (buffer && size) + memcpy(buffer, idata, size); - ami_put_ccb(ccb); if (am) ami_freemem(sc, am); +memerr: + s = splbio(); + ami_put_ccb(ccb); + splx(s); + +err: + lockmgr(&sc->sc_lock, LK_RELEASE, NULL); return (error); } diff --git a/sys/dev/ic/amivar.h b/sys/dev/ic/amivar.h index 640b9c37869..0dfe7618eb1 100644 --- a/sys/dev/ic/amivar.h +++ b/sys/dev/ic/amivar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: amivar.h,v 1.42 2006/03/20 10:10:59 dlg Exp $ */ +/* $OpenBSD: amivar.h,v 1.43 2006/03/20 10:49:53 dlg Exp $ */ /* * Copyright (c) 2001 Michael Shalayeff @@ -90,7 +90,6 @@ struct ami_softc { int sc_flags; #define AMI_CHECK_SIGN 0x0001 #define AMI_BROKEN 0x0002 -#define AMI_CMDWAIT 0x0004 #define AMI_QUARTZ 0x0008 /* low-level interface */ @@ -120,6 +119,8 @@ struct ami_softc { struct timeout sc_run_tmo; int sc_dis_poll; + struct lock sc_lock; + char sc_fwver[16]; char sc_biosver[16]; int sc_maxcmds; |