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NVMe: Pass the nvme_dev to nvme_free_prps and nvme_setup_prps 

We were passing the nvme_queue to access the q_dmadev for the
dma_alloc_coherent calls, but since we moved to the dma pool API,
we really only need the nvme_dev.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
This commit is contained in:
Matthew Wilcox 2011-02-10 10:47:55 -05:00
parent 99802a7aee
commit d567760c40
1 changed files with 11 additions and 13 deletions
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24
drivers/block/nvme.c
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@ -256,10 +256,9 @@ struct nvme_prps {
__le64 *list[0];
};
static void nvme_free_prps(struct nvme_queue *nvmeq, struct nvme_prps *prps)
static void nvme_free_prps(struct nvme_dev *dev, struct nvme_prps *prps)
{
const int last_prp = PAGE_SIZE / 8 - 1;
struct nvme_dev *dev = nvmeq->dev;
int i;
dma_addr_t prp_dma;
@ -295,7 +294,7 @@ static struct nvme_bio *alloc_nbio(unsigned nseg, gfp_t gfp)
static void free_nbio(struct nvme_queue *nvmeq, struct nvme_bio *nbio)
{
nvme_free_prps(nvmeq, nbio->prps);
nvme_free_prps(nvmeq->dev, nbio->prps);
kfree(nbio);
}
@ -316,11 +315,10 @@ static void bio_completion(struct nvme_queue *nvmeq, void *ctx,
}
/* length is in bytes */
static struct nvme_prps *nvme_setup_prps(struct nvme_queue *nvmeq,
static struct nvme_prps *nvme_setup_prps(struct nvme_dev *dev,
struct nvme_common_command *cmd,
struct scatterlist *sg, int length)
{
struct nvme_dev *dev = nvmeq->dev;
struct dma_pool *pool;
int dma_len = sg_dma_len(sg);
u64 dma_addr = sg_dma_address(sg);
@ -458,7 +456,7 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
cmnd->rw.flags = 1;
cmnd->rw.command_id = cmdid;
cmnd->rw.nsid = cpu_to_le32(ns->ns_id);
nbio->prps = nvme_setup_prps(nvmeq, &cmnd->common, nbio->sg,
nbio->prps = nvme_setup_prps(nvmeq->dev, &cmnd->common, nbio->sg,
bio->bi_size);
cmnd->rw.slba = cpu_to_le64(bio->bi_sector >> (ns->lba_shift - 9));
cmnd->rw.length = cpu_to_le16((bio->bi_size >> ns->lba_shift) - 1);
@ -939,10 +937,10 @@ static int nvme_submit_user_admin_command(struct nvme_dev *dev,
nents = nvme_map_user_pages(dev, 0, addr, length, &sg);
if (nents < 0)
return nents;
prps = nvme_setup_prps(dev->queues[0], &cmd->common, sg, length);
prps = nvme_setup_prps(dev, &cmd->common, sg, length);
err = nvme_submit_admin_cmd(dev, cmd, NULL);
nvme_unmap_user_pages(dev, 0, addr, length, sg, nents);
nvme_free_prps(dev->queues[0], prps);
nvme_free_prps(dev, prps);
return err ? -EIO : 0;
}
@ -1000,10 +998,10 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
c.rw.reftag = cpu_to_le32(io.reftag); /* XXX: endian? */
c.rw.apptag = cpu_to_le16(io.apptag);
c.rw.appmask = cpu_to_le16(io.appmask);
nvmeq = get_nvmeq(ns);
/* XXX: metadata */
prps = nvme_setup_prps(nvmeq, &c.common, sg, length);
prps = nvme_setup_prps(dev, &c.common, sg, length);
nvmeq = get_nvmeq(ns);
/* Since nvme_submit_sync_cmd sleeps, we can't keep preemption
* disabled. We may be preempted at any point, and be rescheduled
* to a different CPU. That will cause cacheline bouncing, but no
@ -1013,7 +1011,7 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
status = nvme_submit_sync_cmd(nvmeq, &c, &result, IO_TIMEOUT);
nvme_unmap_user_pages(dev, io.opcode & 1, io.addr, length, sg, nents);
nvme_free_prps(nvmeq, prps);
nvme_free_prps(dev, prps);
put_user(result, &uio->result);
return status;
}
@ -1041,11 +1039,11 @@ static int nvme_download_firmware(struct nvme_ns *ns,
c.dlfw.opcode = nvme_admin_download_fw;
c.dlfw.numd = cpu_to_le32(dlfw.length);
c.dlfw.offset = cpu_to_le32(dlfw.offset);
prps = nvme_setup_prps(dev->queues[0], &c.common, sg, dlfw.length * 4);
prps = nvme_setup_prps(dev, &c.common, sg, dlfw.length * 4);
status = nvme_submit_admin_cmd(dev, &c, NULL);
nvme_unmap_user_pages(dev, 0, dlfw.addr, dlfw.length * 4, sg, nents);
nvme_free_prps(dev->queues[0], prps);
nvme_free_prps(dev, prps);
return status;
}