From: Hannes Reinecke <[email protected]> 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 registes 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.
Signed-off-by: Hannes Reinecke <[email protected]> --- drivers/scsi/aha152x.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index ce5dc73..bc0058d 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -1140,6 +1140,9 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs) /* * 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) { @@ -1223,15 +1226,6 @@ int aha152x_host_reset_host(struct Scsi_Host *shpnt) } /* - * 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" * */ @@ -2917,7 +2911,6 @@ static int aha152x_adjust_queue(struct scsi_device *device) .eh_abort_handler = aha152x_abort, .eh_device_reset_handler = aha152x_device_reset, .eh_bus_reset_handler = aha152x_bus_reset, - .eh_host_reset_handler = aha152x_host_reset, .bios_param = aha152x_biosparam, .can_queue = 1, .this_id = 7, -- 1.8.5.6
