diff options
| -rw-r--r-- | drivers/ata/sata_mv.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 1a82e22b3ef..cb7dec97fee 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -313,7 +313,10 @@ enum { #define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE) enum { - MV_DMA_BOUNDARY = 0xffffffffU, + /* DMA boundary 0xffff is required by the s/g splitting + * we need on /length/ in mv_fill-sg(). + */ + MV_DMA_BOUNDARY = 0xffffU, /* mask of register bits containing lower 32 bits * of EDMA request queue DMA address @@ -448,7 +451,7 @@ static struct scsi_host_template mv5_sht = { .queuecommand = ata_scsi_queuecmd, .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = MV_MAX_SG_CT, + .sg_tablesize = MV_MAX_SG_CT / 2, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = 1, @@ -466,7 +469,7 @@ static struct scsi_host_template mv6_sht = { .queuecommand = ata_scsi_queuecmd, .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = MV_MAX_SG_CT, + .sg_tablesize = MV_MAX_SG_CT / 2, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = 1, |