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authorChristoph Hellwig <hch@lst.de>2024-04-09 16:37:32 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2024-04-11 21:37:48 -0400
commit5b7dfbeff92a4a00b55b2be580f057d533b65cd5 (patch)
tree9e21994f89ae622706edf982c50d876ea7891216 /include/scsi
parent6248d7f7714f018f2c02f356582784e74596f8e8 (diff)
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scsi: core: Add a dma_alignment field to the host and host template
Get drivers out of the business of having to call the block layer DMA alignment limits helpers themselves. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20240409143748.980206-8-hch@lst.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_host.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 6d77c48e8311..b0948ab69e0f 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -405,6 +405,8 @@ struct scsi_host_template {
*/
unsigned int max_segment_size;
+ unsigned int dma_alignment;
+
/*
* DMA scatter gather segment boundary limit. A segment crossing this
* boundary will be split in two.
@@ -614,6 +616,7 @@ struct Scsi_Host {
unsigned int max_sectors;
unsigned int opt_sectors;
unsigned int max_segment_size;
+ unsigned int dma_alignment;
unsigned long dma_boundary;
unsigned long virt_boundary_mask;
/*