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lib/ftl: Use single iovec during metadata read

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Change-Id: Iaf89dcd67e9cfc23fb75a4f227a0095c94398806
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450741
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
This commit is contained in:
Wojciech Malikowski 2019-04-10 06:21:38 -04:00 committed by Darek Stojaczyk
parent f42f853cd0
commit 9d4152ff11
1 changed files with 5 additions and 9 deletions
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14
lib/ftl/ftl_band.c
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@ -722,7 +722,7 @@ ftl_read_md_cb(void *arg, int status)
static struct ftl_md_io * static struct ftl_md_io *
ftl_io_init_md_read(struct spdk_ftl_dev *dev, struct ftl_md *md, void *data, struct ftl_ppa ppa, ftl_io_init_md_read(struct spdk_ftl_dev *dev, struct ftl_md *md, void *data, struct ftl_ppa ppa,
struct ftl_band *band, size_t lbk_cnt, size_t req_size, ftl_md_pack_fn fn, struct ftl_band *band, size_t lbk_cnt, ftl_md_pack_fn fn,
const struct ftl_cb *cb) const struct ftl_cb *cb)
{ {
struct ftl_md_io *io; struct ftl_md_io *io;
@ -734,8 +734,8 @@ ftl_io_init_md_read(struct spdk_ftl_dev *dev, struct ftl_md *md, void *data, str
.size = sizeof(*io), .size = sizeof(*io),
.flags = FTL_IO_MD | FTL_IO_PPA_MODE, .flags = FTL_IO_MD | FTL_IO_PPA_MODE,
.type = FTL_IO_READ, .type = FTL_IO_READ,
.iov_cnt = spdk_divide_round_up(lbk_cnt, req_size), .iov_cnt = 1,
.req_size = req_size, .req_size = lbk_cnt,
.fn = ftl_read_md_cb, .fn = ftl_read_md_cb,
.data = data, .data = data,
}; };
@ -833,8 +833,7 @@ ftl_band_lba_map_ppa(struct ftl_band *band)
static int static int
ftl_band_read_md(struct ftl_band *band, struct ftl_md *md, void *data, size_t lbk_cnt, ftl_band_read_md(struct ftl_band *band, struct ftl_md *md, void *data, size_t lbk_cnt,
size_t req_size, struct ftl_ppa start_ppa, ftl_md_pack_fn unpack_fn, struct ftl_ppa start_ppa, ftl_md_pack_fn unpack_fn, const struct ftl_cb *cb)
const struct ftl_cb *cb)
{ {
struct spdk_ftl_dev *dev = band->dev; struct spdk_ftl_dev *dev = band->dev;
struct ftl_md_io *io; struct ftl_md_io *io;
@ -844,7 +843,7 @@ ftl_band_read_md(struct ftl_band *band, struct ftl_md *md, void *data, size_t lb
} }
io = ftl_io_init_md_read(dev, md, data, start_ppa, band, lbk_cnt, io = ftl_io_init_md_read(dev, md, data, start_ppa, band, lbk_cnt,
req_size, unpack_fn, cb); unpack_fn, cb);
if (!io) { if (!io) {
return -ENOMEM; return -ENOMEM;
} }
@ -859,7 +858,6 @@ ftl_band_read_tail_md(struct ftl_band *band, struct ftl_md *md,
{ {
return ftl_band_read_md(band, md, data, return ftl_band_read_md(band, md, data,
ftl_tail_md_num_lbks(band->dev), ftl_tail_md_num_lbks(band->dev),
band->dev->xfer_size,
ppa, ppa,
ftl_unpack_tail_md, ftl_unpack_tail_md,
cb); cb);
@ -873,7 +871,6 @@ ftl_band_read_lba_map(struct ftl_band *band, struct ftl_md *md,
/* reading whole metadata */ /* reading whole metadata */
return ftl_band_read_md(band, md, data, return ftl_band_read_md(band, md, data,
ftl_lba_map_num_lbks(band->dev), ftl_lba_map_num_lbks(band->dev),
band->dev->xfer_size,
ftl_band_lba_map_ppa(band), ftl_band_lba_map_ppa(band),
ftl_unpack_lba_map, ftl_unpack_lba_map,
cb); cb);
@ -885,7 +882,6 @@ ftl_band_read_head_md(struct ftl_band *band, struct ftl_md *md,
{ {
return ftl_band_read_md(band, md, data, return ftl_band_read_md(band, md, data,
ftl_head_md_num_lbks(band->dev), ftl_head_md_num_lbks(band->dev),
band->dev->xfer_size,
ftl_band_head_md_ppa(band), ftl_band_head_md_ppa(band),
ftl_unpack_head_md, ftl_unpack_head_md,
cb); cb);