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| author | Hannes Reinecke <hare@suse.com> | 2017-08-25 13:57:16 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-25 17:21:11 -0400 |
| commit | 819f80c95575286fd4538ab2fbdfcf7ad9cc0b9a (patch) | |
| tree | b3d173ad4598451a3477a66351c6c4a6e7e7912d /drivers | |
| parent | 71b2e66336fc2746ad072e22d3104a42561b436f (diff) | |
| download | linux-stable-819f80c95575286fd4538ab2fbdfcf7ad9cc0b9a.tar.gz linux-stable-819f80c95575286fd4538ab2fbdfcf7ad9cc0b9a.tar.bz2 linux-stable-819f80c95575286fd4538ab2fbdfcf7ad9cc0b9a.zip | |
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: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/aha152x.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index ce5dc73d85bb..bc0058df31c6 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 struct scsi_host_template aha152x_driver_template = { .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, |