Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Cc: sathya.prakash@xxxxxxxxxxxx
---
drivers/scsi/mpi3mr/mpi3mr_os.c | 40 +++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 4d94352a4d48..7e0eacf45d84 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -2078,6 +2078,45 @@ static int mpi3mr_build_sg_scmd(struct mpi3mr_ioc *mrioc,
return ret;
}
+/**
+ * mpi3mr_bios_param - BIOS param callback
+ * @sdev: SCSI device reference
+ * @bdev: Block device reference
+ * @capacity: Capacity in logical sectors
+ * @params: Parameter array
+ *
+ * Just the parameters with heads/secots/cylinders.
+ *
+ * Return: 0 always
+ */
+static int mpi3mr_bios_param(struct scsi_device *sdev,
+ struct block_device *bdev, sector_t capacity, int params[])
+{
+ int heads;
+ int sectors;
+ sector_t cylinders;
+ ulong dummy;
+
+ heads = 64;
+ sectors = 32;
+
+ dummy = heads * sectors;
+ cylinders = capacity;
+ sector_div(cylinders, dummy);
+
+ if ((ulong)capacity >= 0x200000) {
+ heads = 255;
+ sectors = 63;
+ dummy = heads * sectors;
+ cylinders = capacity;
+ sector_div(cylinders, dummy);
+ }
+
+ params[0] = heads;
+ params[1] = sectors;
+ params[2] = cylinders;
+ return 0;
+}
/**
* mpi3mr_map_queues - Map queues callback handler
@@ -2511,6 +2550,7 @@ static struct scsi_host_template mpi3mr_driver_template = {
.slave_destroy = mpi3mr_slave_destroy,
.scan_finished = mpi3mr_scan_finished,
.scan_start = mpi3mr_scan_start,
+ .bios_param = mpi3mr_bios_param,
.map_queues = mpi3mr_map_queues,
.no_write_same = 1,
.can_queue = 1,
--
2.18.1
--
This electronic communication and the information and any files transmitted
with it, or attached to it, are confidential and are intended solely for
the use of the individual or entity to whom it is addressed and may contain
information that is confidential, legally privileged, protected by privacy
laws, or otherwise restricted from disclosure to anyone else. If you are
not the intended recipient or the person responsible for delivering the
e-mail to the intended recipient, you are hereby notified that any use,
copying, distributing, dissemination, forwarding, printing, or copying of
this e-mail is strictly prohibited. If you received this e-mail in error,
please return the e-mail to the sender, delete it from your computer, and
destroy any printed copy of it.
Attachment:
smime.p7s
Description: S/MIME Cryptographic Signature
