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/scsi_lib.c | |
| parent | scsi: flip the default on use_clustering (diff) | |
| download | linux-dev-50c2e9107f176a82e14567b39c5d0f2a208cc82c.tar.xz linux-dev-50c2e9107f176a82e14567b39c5d0f2a208cc82c.zip | |
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 '')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index f6900e0b3024..2d4fd6b4bd92 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2227,7 +2227,8 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) blk_queue_segment_boundary(q, shost->dma_boundary); dma_set_seg_boundary(dev, shost->dma_boundary); - blk_queue_max_segment_size(q, dma_get_max_seg_size(dev)); + blk_queue_max_segment_size(q, + min(shost->max_segment_size, dma_get_max_seg_size(dev))); if (shost->use_clustering == DISABLE_CLUSTERING) q->limits.cluster = 0; |