Commit 819f80c9 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Martin K. Petersen

scsi: aha152x: drop host reset

The driver has both a bus and a host reset, where the host reset does a
bus reset followed by an attempt to reset the chip registers to a
default state.  However, as the bus reset always returned SUCCESS the
host reset was never called, so the functionality of the register reset
function was never validated.  Additionally, tha AIC-6260 chip has a
hard reset line, which actually should be preferred for a host
reset. But I haven't found a way how this can be triggered via software,
so take the safe approach and drop the host reset.

[mkp: typo]
Signed-off-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 71b2e663
...@@ -1140,6 +1140,9 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs) ...@@ -1140,6 +1140,9 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
/* /*
* Reset the bus * Reset the bus
* *
* AIC-6260 has a hard reset (MRST signal), but apparently
* one cannot trigger it via software. So live with
* a soft reset; no-one seemed to have cared.
*/ */
static int aha152x_bus_reset_host(struct Scsi_Host *shpnt) static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
{ {
...@@ -1222,15 +1225,6 @@ int aha152x_host_reset_host(struct Scsi_Host *shpnt) ...@@ -1222,15 +1225,6 @@ int aha152x_host_reset_host(struct Scsi_Host *shpnt)
return SUCCESS; return SUCCESS;
} }
/*
* Reset the host (bus and controller)
*
*/
static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
{
return aha152x_host_reset_host(SCpnt->device->host);
}
/* /*
* Return the "logical geometry" * Return the "logical geometry"
* *
...@@ -2917,7 +2911,6 @@ static struct scsi_host_template aha152x_driver_template = { ...@@ -2917,7 +2911,6 @@ static struct scsi_host_template aha152x_driver_template = {
.eh_abort_handler = aha152x_abort, .eh_abort_handler = aha152x_abort,
.eh_device_reset_handler = aha152x_device_reset, .eh_device_reset_handler = aha152x_device_reset,
.eh_bus_reset_handler = aha152x_bus_reset, .eh_bus_reset_handler = aha152x_bus_reset,
.eh_host_reset_handler = aha152x_host_reset,
.bios_param = aha152x_biosparam, .bios_param = aha152x_biosparam,
.can_queue = 1, .can_queue = 1,
.this_id = 7, .this_id = 7,
......
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