diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-12-13 16:17:03 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-12-18 23:13:12 -0500 |
| commit | 50c2e9107f176a82e14567b39c5d0f2a208cc82c (patch) | |
| tree | 94cdec8e5724b7fb66f0781bcf6a4360653b097e /drivers/scsi/hosts.c | |
| parent | 2a3d4eb8e228061c09d5ca8bf39e7f00c2091213 (diff) | |
scsi: introduce a max_segment_size host_template parameters
This allows the host driver to indicate the maximum supported
segment size in a nice an easy way, so that the driver doesn't
have to worry about DMA-layer imposed limitations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hosts.c')
| -rw-r--r-- | drivers/scsi/hosts.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index ea4b0bb0c1cd..e8148ba414a3 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -464,6 +464,11 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) else shost->max_sectors = SCSI_DEFAULT_MAX_SECTORS; + if (sht->max_segment_size) + shost->max_segment_size = sht->max_segment_size; + else + shost->max_segment_size = BLK_MAX_SEGMENT_SIZE; + /* * assume a 4GB boundary, if not set */ |