diff options
Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym_hipd.c')
| -rw-r--r-- | drivers/scsi/sym53c8xx_2/sym_hipd.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c index 21cd4c7f5289..af24c447b195 100644 --- a/drivers/scsi/sym53c8xx_2/sym_hipd.c +++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c @@ -1180,10 +1180,10 @@ static void sym_log_hard_error(struct sym_hcb *np, u_short sist, u_char dstat) scr_to_cpu((int) *(u32 *)(script_base + script_ofs))); } - printf ("%s: regdump:", sym_name(np)); - for (i=0; i<24;i++) - printf (" %02x", (unsigned)INB_OFF(np, i)); - printf (".\n"); + printf("%s: regdump:", sym_name(np)); + for (i = 0; i < 24; i++) + printf(" %02x", (unsigned)INB_OFF(np, i)); + printf(".\n"); /* * PCI BUS error. @@ -1192,6 +1192,16 @@ static void sym_log_hard_error(struct sym_hcb *np, u_short sist, u_char dstat) sym_log_bus_error(np); } +void sym_dump_registers(struct sym_hcb *np) +{ + u_short sist; + u_char dstat; + + sist = INW(np, nc_sist); + dstat = INB(np, nc_dstat); + sym_log_hard_error(np, sist, dstat); +} + static struct sym_chip sym_dev_table[] = { {PCI_DEVICE_ID_NCR_53C810, 0x0f, "810", 4, 8, 4, 64, FE_ERL} @@ -2809,6 +2819,13 @@ void sym_interrupt (struct sym_hcb *np) dstat |= INB(np, nc_dstat); istatc = INB(np, nc_istat); istat |= istatc; + + /* Prevent deadlock waiting on a condition that may + * never clear. */ + if (unlikely(sist == 0xffff && dstat == 0xff)) { + if (pci_channel_offline(np->s.device)) + return; + } } while (istatc & (SIP|DIP)); if (DEBUG_FLAGS & DEBUG_TINY) |