ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bdev/ocssd: wrap IO part of bdev_ocssd_io

Browse Source 
Wrap the part of the bdev_ocssd_io responsible for describing IO
operations in a separate structure.  Currently all fields are wrapped
this way, but it'll allow the bdev_ocssd_io to become a union of several
different types of structures (one for the IO operations, one for
getting zone information, etc.).

Change-Id: I72276ce786d3c9ef0d1762c5ac20071b7a163ef5
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477023
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Konrad Sztyber 2019-12-06 10:20:20 +01:00 committed by Tomasz Zawadzki
parent 704830b3b7
commit 6e640cfcbf
1 changed files with 27 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
module/bdev/nvme/bdev_ocssd.c
View File

@ -52,9 +52,11 @@ struct bdev_ocssd_lba_offsets {
};
struct bdev_ocssd_io {
struct {
size_t iov_pos;
size_t iov_off;
uint64_t lba[SPDK_NVME_OCSSD_MAX_LBAL_ENTRIES];
} io;
};
struct ocssd_bdev {
@ -169,13 +171,13 @@ bdev_ocssd_reset_sgl(void *cb_arg, uint32_t offset)
struct bdev_ocssd_io *ocdev_io = (struct bdev_ocssd_io *)bdev_io->driver_ctx;
struct iovec *iov;
ocdev_io->iov_pos = 0;
ocdev_io->iov_off = 0;
ocdev_io->io.iov_pos = 0;
ocdev_io->io.iov_off = 0;
for (; ocdev_io->iov_pos < (size_t)bdev_io->u.bdev.iovcnt; ++ocdev_io->iov_pos) {
iov = &bdev_io->u.bdev.iovs[ocdev_io->iov_pos];
for (; ocdev_io->io.iov_pos < (size_t)bdev_io->u.bdev.iovcnt; ++ocdev_io->io.iov_pos) {
iov = &bdev_io->u.bdev.iovs[ocdev_io->io.iov_pos];
if (offset < iov->iov_len) {
ocdev_io->iov_off = offset;
ocdev_io->io.iov_off = offset;
return;
}
@ -192,21 +194,21 @@ bdev_ocssd_next_sge(void *cb_arg, void **address, uint32_t *length)
struct bdev_ocssd_io *ocdev_io = (struct bdev_ocssd_io *)bdev_io->driver_ctx;
struct iovec *iov;
assert(ocdev_io->iov_pos < (size_t)bdev_io->u.bdev.iovcnt);
iov = &bdev_io->u.bdev.iovs[ocdev_io->iov_pos];
assert(ocdev_io->io.iov_pos < (size_t)bdev_io->u.bdev.iovcnt);
iov = &bdev_io->u.bdev.iovs[ocdev_io->io.iov_pos];
*address = iov->iov_base;
*length = iov->iov_len;
if (ocdev_io->iov_off != 0) {
assert(ocdev_io->iov_off < iov->iov_len);
*address = (char *)*address + ocdev_io->iov_off;
*length -= ocdev_io->iov_off;
if (ocdev_io->io.iov_off != 0) {
assert(ocdev_io->io.iov_off < iov->iov_len);
*address = (char *)*address + ocdev_io->io.iov_off;
*length -= ocdev_io->io.iov_off;
}
assert(ocdev_io->iov_off + *length == iov->iov_len);
ocdev_io->iov_off = 0;
ocdev_io->iov_pos++;
assert(ocdev_io->io.iov_off + *length == iov->iov_len);
ocdev_io->io.iov_off = 0;
ocdev_io->io.iov_pos++;
return 0;
}
@ -234,8 +236,8 @@ bdev_ocssd_read(struct spdk_io_channel *ioch, struct spdk_bdev_io *bdev_io)
return -EINVAL;
}
ocdev_io->iov_pos = 0;
ocdev_io->iov_off = 0;
ocdev_io->io.iov_pos = 0;
ocdev_io->io.iov_off = 0;
lba = bdev_ocssd_to_disk_lba(ocssd_bdev, bdev_io->u.bdev.offset_blocks);
@ -268,8 +270,8 @@ bdev_ocssd_write(struct spdk_io_channel *ioch, struct spdk_bdev_io *bdev_io)
return -EINVAL;
}
ocdev_io->iov_pos = 0;
ocdev_io->iov_off = 0;
ocdev_io->io.iov_pos = 0;
ocdev_io->io.iov_off = 0;
lba = bdev_ocssd_to_disk_lba(ocssd_bdev, bdev_io->u.bdev.offset_blocks);
@ -323,12 +325,12 @@ bdev_ocssd_reset_zone(struct spdk_io_channel *ioch, struct spdk_bdev_io *bdev_io
}
for (offset = 0; offset < num_zones; ++offset) {
ocdev_io->lba[offset] = bdev_ocssd_to_disk_lba(ocssd_bdev,
ocdev_io->io.lba[offset] = bdev_ocssd_to_disk_lba(ocssd_bdev,
slba + offset * zone_size);
}
return spdk_nvme_ocssd_ns_cmd_vector_reset(nvme_bdev->nvme_ns->ns, nvme_ioch->qpair, ocdev_io->lba,
num_zones, NULL, bdev_ocssd_reset_zone_cb, bdev_io);
return spdk_nvme_ocssd_ns_cmd_vector_reset(nvme_bdev->nvme_ns->ns, nvme_ioch->qpair,
ocdev_io->io.lba, num_zones, NULL, bdev_ocssd_reset_zone_cb, bdev_io);
}
static int