diff options
Diffstat (limited to 'drivers/ata/sata_nv.c')
| -rw-r--r-- | drivers/ata/sata_nv.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 367027bc4cd7..067352da2c2d 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -1164,11 +1164,7 @@ static void nv_adma_fill_aprd(struct ata_queued_cmd *qc, int idx, struct nv_adma_prd *aprd) { - u8 flags; - - memset(aprd, 0, sizeof(struct nv_adma_prd)); - - flags = 0; + u8 flags = 0; if (qc->tf.flags & ATA_TFLAG_WRITE) flags |= NV_APRD_WRITE; if (idx == qc->n_elem - 1) @@ -1179,6 +1175,7 @@ static void nv_adma_fill_aprd(struct ata_queued_cmd *qc, aprd->addr = cpu_to_le64(((u64)sg_dma_address(sg))); aprd->len = cpu_to_le32(((u32)sg_dma_len(sg))); /* len in bytes */ aprd->flags = flags; + aprd->packet_len = 0; } static void nv_adma_fill_sg(struct ata_queued_cmd *qc, struct nv_adma_cpb *cpb) @@ -1199,6 +1196,8 @@ static void nv_adma_fill_sg(struct ata_queued_cmd *qc, struct nv_adma_cpb *cpb) } if (idx > 5) cpb->next_aprd = cpu_to_le64(((u64)(pp->aprd_dma + NV_ADMA_SGTBL_SZ * qc->tag))); + else + cpb->next_aprd = cpu_to_le64(0); } static int nv_adma_use_reg_mode(struct ata_queued_cmd *qc) @@ -1231,7 +1230,10 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc) return; } - memset(cpb, 0, sizeof(struct nv_adma_cpb)); + cpb->resp_flags = NV_CPB_RESP_DONE; + wmb(); + cpb->ctl_flags = 0; + wmb(); cpb->len = 3; cpb->tag = qc->tag; @@ -1255,6 +1257,8 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc) finished filling in all of the contents */ wmb(); cpb->ctl_flags = ctl_flags; + wmb(); + cpb->resp_flags = 0; } static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc) |