void
fletcher_4_init(void)
{
static const size_t data_size = 1 << SPA_OLD_MAXBLOCKSHIFT; /* 128kiB */
fletcher_4_ops_t *curr_impl;
char *databuf;
int i, c;
/* move supported impl into fletcher_4_supp_impls */
for (i = 0, c = 0; i < ARRAY_SIZE(fletcher_4_impls); i++) {
curr_impl = (fletcher_4_ops_t *) fletcher_4_impls[i];
if (curr_impl->valid && curr_impl->valid())
fletcher_4_supp_impls[c++] = curr_impl;
}
membar_producer(); /* complete fletcher_4_supp_impls[] init */
fletcher_4_supp_impls_cnt = c; /* number of supported impl */
#if !defined(_KERNEL)
/* Skip benchmarking and use last implementation as fastest */
memcpy(&fletcher_4_fastest_impl,
fletcher_4_supp_impls[fletcher_4_supp_impls_cnt-1],
sizeof (fletcher_4_fastest_impl));
fletcher_4_fastest_impl.name = "fastest";
membar_producer();
fletcher_4_initialized = B_TRUE;
/* Use 'cycle' math selection method for userspace */
VERIFY0(fletcher_4_impl_set("cycle"));
return;
#endif
/* Benchmark all supported implementations */
databuf = vmem_alloc(data_size, KM_SLEEP);
for (i = 0; i < data_size / sizeof (uint64_t); i++)
((uint64_t *)databuf)[i] = (uintptr_t)(databuf+i); /* warm-up */
fletcher_4_benchmark_impl(B_FALSE, databuf, data_size);
fletcher_4_benchmark_impl(B_TRUE, databuf, data_size);
vmem_free(databuf, data_size);
/* install kstats for all implementations */
fletcher_4_kstat = kstat_create("zfs", 0, "fletcher_4_bench", "misc",
KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VIRTUAL);
if (fletcher_4_kstat != NULL) {
fletcher_4_kstat->ks_data = NULL;
fletcher_4_kstat->ks_ndata = UINT32_MAX;
kstat_set_raw_ops(fletcher_4_kstat,
fletcher_4_kstat_headers,
fletcher_4_kstat_data,
fletcher_4_kstat_addr);
kstat_install(fletcher_4_kstat);
}
/* Finish initialization */
fletcher_4_initialized = B_TRUE;
}
void
zfs_dbgmsg_init(void)
{
list_create(&zfs_dbgmsgs, sizeof (zfs_dbgmsg_t),
offsetof(zfs_dbgmsg_t, zdm_node));
mutex_init(&zfs_dbgmsgs_lock, NULL, MUTEX_DEFAULT, NULL);
zfs_dbgmsg_kstat = kstat_create("zfs", 0, "dbgmsg", "misc",
KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VIRTUAL);
if (zfs_dbgmsg_kstat) {
zfs_dbgmsg_kstat->ks_lock = &zfs_dbgmsgs_lock;
zfs_dbgmsg_kstat->ks_ndata = UINT32_MAX;
zfs_dbgmsg_kstat->ks_private = NULL;
zfs_dbgmsg_kstat->ks_update = zfs_dbgmsg_update;
kstat_set_raw_ops(zfs_dbgmsg_kstat, zfs_dbgmsg_headers,
zfs_dbgmsg_data, zfs_dbgmsg_addr);
kstat_install(zfs_dbgmsg_kstat);
}
}
static void
dbuf_stats_hash_table_init(dbuf_hash_table_t *hash)
{
dbuf_stats_t *dsh = &dbuf_stats_hash_table;
kstat_t *ksp;
mutex_init(&dsh->lock, NULL, MUTEX_DEFAULT, NULL);
dsh->hash = hash;
ksp = kstat_create("zfs", 0, "dbufs", "misc",
KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VIRTUAL);
dsh->kstat = ksp;
if (ksp) {
ksp->ks_lock = &dsh->lock;
ksp->ks_ndata = UINT32_MAX;
ksp->ks_private = dsh;
kstat_set_raw_ops(ksp, dbuf_stats_hash_table_headers,
dbuf_stats_hash_table_data, dbuf_stats_hash_table_addr);
kstat_install(ksp);
}
}
void
vdev_raidz_math_init(void)
{
raidz_impl_ops_t *curr_impl;
zio_t *bench_zio = NULL;
raidz_map_t *bench_rm = NULL;
uint64_t bench_parity;
int i, c, fn;
/* move supported impl into raidz_supp_impl */
for (i = 0, c = 0; i < ARRAY_SIZE(raidz_all_maths); i++) {
curr_impl = (raidz_impl_ops_t *)raidz_all_maths[i];
/* initialize impl */
if (curr_impl->init)
curr_impl->init();
if (curr_impl->is_supported())
raidz_supp_impl[c++] = (raidz_impl_ops_t *)curr_impl;
}
membar_producer(); /* complete raidz_supp_impl[] init */
raidz_supp_impl_cnt = c; /* number of supported impl */
#if !defined(_KERNEL)
/* Skip benchmarking and use last implementation as fastest */
memcpy(&vdev_raidz_fastest_impl, raidz_supp_impl[raidz_supp_impl_cnt-1],
sizeof (vdev_raidz_fastest_impl));
strcpy(vdev_raidz_fastest_impl.name, "fastest");
raidz_math_initialized = B_TRUE;
/* Use 'cycle' math selection method for userspace */
VERIFY0(vdev_raidz_impl_set("cycle"));
return;
#endif
/* Fake an zio and run the benchmark on a warmed up buffer */
bench_zio = kmem_zalloc(sizeof (zio_t), KM_SLEEP);
bench_zio->io_offset = 0;
bench_zio->io_size = BENCH_ZIO_SIZE; /* only data columns */
bench_zio->io_abd = abd_alloc_linear(BENCH_ZIO_SIZE, B_TRUE);
memset(abd_to_buf(bench_zio->io_abd), 0xAA, BENCH_ZIO_SIZE);
/* Benchmark parity generation methods */
for (fn = 0; fn < RAIDZ_GEN_NUM; fn++) {
bench_parity = fn + 1;
/* New raidz_map is needed for each generate_p/q/r */
bench_rm = vdev_raidz_map_alloc(bench_zio, SPA_MINBLOCKSHIFT,
BENCH_D_COLS + bench_parity, bench_parity);
benchmark_raidz_impl(bench_rm, fn, benchmark_gen_impl);
vdev_raidz_map_free(bench_rm);
}
/* Benchmark data reconstruction methods */
bench_rm = vdev_raidz_map_alloc(bench_zio, SPA_MINBLOCKSHIFT,
BENCH_COLS, PARITY_PQR);
for (fn = 0; fn < RAIDZ_REC_NUM; fn++)
benchmark_raidz_impl(bench_rm, fn, benchmark_rec_impl);
vdev_raidz_map_free(bench_rm);
/* cleanup the bench zio */
abd_free(bench_zio->io_abd);
kmem_free(bench_zio, sizeof (zio_t));
/* install kstats for all impl */
raidz_math_kstat = kstat_create("zfs", 0, "vdev_raidz_bench", "misc",
KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VIRTUAL);
if (raidz_math_kstat != NULL) {
raidz_math_kstat->ks_data = NULL;
raidz_math_kstat->ks_ndata = UINT32_MAX;
kstat_set_raw_ops(raidz_math_kstat,
raidz_math_kstat_headers,
raidz_math_kstat_data,
raidz_math_kstat_addr);
kstat_install(raidz_math_kstat);
}
/* Finish initialization */
atomic_swap_32(&zfs_vdev_raidz_impl, user_sel_impl);
raidz_math_initialized = B_TRUE;
}
