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authorMatthew Wilcox <matthew@wil.cx>2007-10-05 15:55:12 -0400
committerJames Bottomley <jejb@mulgrave.localdomain>2007-10-23 15:23:28 -0400
commit99c9e0a1d6cfe1ba1169a7a81435ee85bc00e4a1 (patch)
treea946e291692f09e3b4ecc71ceb9dd264a9f7acea /drivers/scsi/sym53c8xx_2/sym_hipd.c
parent8022fbdacb0e9193a5dfb666479d1fc2ca63ecf1 (diff)
[SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE
Make sym_interrupt return an irqreturn_t instead of void, and take a Scsi_Host instead of a sym_hcb. Pass the Scsi_Host to the interrupt handler instead of the sym_hcb. Rename the host_data to sym_data. Keep a pci_dev pointer in the sym_data. Rename the Scsi_Host from instance to shost. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym_hipd.c')
-rw-r--r--drivers/scsi/sym53c8xx_2/sym_hipd.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index 13fd5b2c56f..5d2079f9e59 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -2760,8 +2760,9 @@ reset_all:
* Use at your own decision and risk.
*/
-void sym_interrupt (struct sym_hcb *np)
+irqreturn_t sym_interrupt(struct Scsi_Host *shost)
{
+ struct sym_hcb *np = sym_get_hcb(shost);
u_char istat, istatc;
u_char dstat;
u_short sist;
@@ -2786,7 +2787,7 @@ void sym_interrupt (struct sym_hcb *np)
}
if (!(istat & (SIP|DIP)))
- return;
+ return (istat & INTF) ? IRQ_HANDLED : IRQ_NONE;
#if 0 /* We should never get this one */
if (istat & CABRT)
@@ -2818,7 +2819,7 @@ void sym_interrupt (struct sym_hcb *np)
* never clear. */
if (unlikely(sist == 0xffff && dstat == 0xff)) {
if (pci_channel_offline(np->s.device))
- return;
+ return IRQ_NONE;
}
} while (istatc & (SIP|DIP));
@@ -2856,7 +2857,7 @@ void sym_interrupt (struct sym_hcb *np)
else if (dstat & SIR) sym_int_sir(np);
else if (dstat & SSI) OUTONB_STD();
else goto unknown_int;
- return;
+ return IRQ_HANDLED;
}
/*
@@ -2873,7 +2874,7 @@ void sym_interrupt (struct sym_hcb *np)
if (sist & RST) {
printf("%s: SCSI BUS reset detected.\n", sym_name(np));
sym_start_up (np, 1);
- return;
+ return IRQ_HANDLED;
}
OUTB(np, nc_ctest3, np->rv_ctest3 | CLF); /* clear dma fifo */
@@ -2885,7 +2886,7 @@ void sym_interrupt (struct sym_hcb *np)
else if (sist & STO) sym_int_sto (np);
else if (sist & UDC) sym_int_udc (np);
else goto unknown_int;
- return;
+ return IRQ_HANDLED;
}
/*
@@ -2900,7 +2901,7 @@ void sym_interrupt (struct sym_hcb *np)
if ((sist & (GEN|HTH|SGE)) ||
(dstat & (MDPE|BF|ABRT|IID))) {
sym_start_reset(np);
- return;
+ return IRQ_HANDLED;
}
unknown_int:
@@ -2911,6 +2912,7 @@ unknown_int:
printf( "%s: unknown interrupt(s) ignored, "
"ISTAT=0x%x DSTAT=0x%x SIST=0x%x\n",
sym_name(np), istat, dstat, sist);
+ return IRQ_NONE;
}
/*