On Thu, Jul 30, 2020 at 7:06 AM Klaus Jensen <i...@irrelevant.dk> wrote: > > From: Klaus Jensen <k.jen...@samsung.com> > > Introduce the nvme_map helper to remove some noise in the main nvme_rw > function. > > Signed-off-by: Klaus Jensen <k.jen...@samsung.com> > Reviewed-by: Maxim Levitsky <mlevi...@redhat.com> > --- > hw/block/nvme.c | 13 ++++++++++--- > 1 file changed, 10 insertions(+), 3 deletions(-) > > diff --git a/hw/block/nvme.c b/hw/block/nvme.c > index 952afbb05175..198a26890e0c 100644 > --- a/hw/block/nvme.c > +++ b/hw/block/nvme.c > @@ -415,6 +415,15 @@ static uint16_t nvme_dma_prp(NvmeCtrl *n, uint8_t *ptr, > uint32_t len, > return status; > } > > +static uint16_t nvme_map_dptr(NvmeCtrl *n, NvmeCmd *cmd, size_t len, > + NvmeRequest *req) > +{ > + uint64_t prp1 = le64_to_cpu(cmd->dptr.prp1); > + uint64_t prp2 = le64_to_cpu(cmd->dptr.prp2); > + > + return nvme_map_prp(&req->qsg, &req->iov, prp1, prp2, len, n); > +}
Let's do something for MPTR laster also when we are right in front of that. Looks good to me. Reviewed-by: Minwoo Im <minwoo.im....@gmail.com> > + > static void nvme_post_cqes(void *opaque) > { > NvmeCQueue *cq = opaque; > @@ -602,8 +611,6 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, > NvmeCmd *cmd, > NvmeRwCmd *rw = (NvmeRwCmd *)cmd; > uint32_t nlb = le32_to_cpu(rw->nlb) + 1; > uint64_t slba = le64_to_cpu(rw->slba); > - uint64_t prp1 = le64_to_cpu(rw->dptr.prp1); > - uint64_t prp2 = le64_to_cpu(rw->dptr.prp2); > > uint8_t lba_index = NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas); > uint8_t data_shift = ns->id_ns.lbaf[lba_index].ds; > @@ -620,7 +627,7 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, > NvmeCmd *cmd, > return NVME_LBA_RANGE | NVME_DNR; > } > > - if (nvme_map_prp(&req->qsg, &req->iov, prp1, prp2, data_size, n)) { > + if (nvme_map_dptr(n, cmd, data_size, req)) { > block_acct_invalid(blk_get_stats(n->conf.blk), acct); > return NVME_INVALID_FIELD | NVME_DNR; > } > -- > 2.27.0 >