static void vm_map_setup(vm_map_t *map) {
TAILQ_INIT(&map->list);
SPLAY_INIT(&map->tree);
rw_init(&map->rwlock, "vm map rwlock", 1);
}
int
zfs_sb_create(const char *osname, zfs_sb_t **zsbp)
{
objset_t *os;
zfs_sb_t *zsb;
uint64_t zval;
int i, error;
uint64_t sa_obj;
zsb = kmem_zalloc(sizeof (zfs_sb_t), KM_SLEEP | KM_NODEBUG);
/*
* We claim to always be readonly so we can open snapshots;
* other ZPL code will prevent us from writing to snapshots.
*/
error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zsb, &os);
if (error) {
kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
/*
* Initialize the zfs-specific filesystem structure.
* Should probably make this a kmem cache, shuffle fields,
* and just bzero up to z_hold_mtx[].
*/
zsb->z_sb = NULL;
zsb->z_parent = zsb;
zsb->z_max_blksz = SPA_MAXBLOCKSIZE;
zsb->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
zsb->z_os = os;
error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zsb->z_version);
if (error) {
goto out;
} else if (zsb->z_version >
zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) {
(void) printk("Can't mount a version %lld file system "
"on a version %lld pool\n. Pool must be upgraded to mount "
"this file system.", (u_longlong_t)zsb->z_version,
(u_longlong_t)spa_version(dmu_objset_spa(os)));
error = SET_ERROR(ENOTSUP);
goto out;
}
if ((error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &zval)) != 0)
goto out;
zsb->z_norm = (int)zval;
if ((error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &zval)) != 0)
goto out;
zsb->z_utf8 = (zval != 0);
if ((error = zfs_get_zplprop(os, ZFS_PROP_CASE, &zval)) != 0)
goto out;
zsb->z_case = (uint_t)zval;
if ((error = zfs_get_zplprop(os, ZFS_PROP_ACLTYPE, &zval)) != 0)
goto out;
zsb->z_acl_type = (uint_t)zval;
/*
* Fold case on file systems that are always or sometimes case
* insensitive.
*/
if (zsb->z_case == ZFS_CASE_INSENSITIVE ||
zsb->z_case == ZFS_CASE_MIXED)
zsb->z_norm |= U8_TEXTPREP_TOUPPER;
zsb->z_use_fuids = USE_FUIDS(zsb->z_version, zsb->z_os);
zsb->z_use_sa = USE_SA(zsb->z_version, zsb->z_os);
if (zsb->z_use_sa) {
/* should either have both of these objects or none */
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1,
&sa_obj);
if (error)
goto out;
error = zfs_get_zplprop(os, ZFS_PROP_XATTR, &zval);
if ((error == 0) && (zval == ZFS_XATTR_SA))
zsb->z_xattr_sa = B_TRUE;
} else {
/*
* Pre SA versions file systems should never touch
* either the attribute registration or layout objects.
*/
sa_obj = 0;
}
error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
&zsb->z_attr_table);
if (error)
goto out;
if (zsb->z_version >= ZPL_VERSION_SA)
sa_register_update_callback(os, zfs_sa_upgrade);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1,
&zsb->z_root);
if (error)
goto out;
ASSERT(zsb->z_root != 0);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_UNLINKED_SET, 8, 1,
&zsb->z_unlinkedobj);
if (error)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA],
8, 1, &zsb->z_userquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA],
8, 1, &zsb->z_groupquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 8, 1,
&zsb->z_fuid_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SHARES_DIR, 8, 1,
&zsb->z_shares_dir);
if (error && error != ENOENT)
goto out;
mutex_init(&zsb->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&zsb->z_lock, NULL, MUTEX_DEFAULT, NULL);
list_create(&zsb->z_all_znodes, sizeof (znode_t),
offsetof(znode_t, z_link_node));
rrw_init(&zsb->z_teardown_lock, B_FALSE);
rw_init(&zsb->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
rw_init(&zsb->z_fuid_lock, NULL, RW_DEFAULT, NULL);
for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
mutex_init(&zsb->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL);
avl_create(&zsb->z_ctldir_snaps, snapentry_compare,
sizeof (zfs_snapentry_t), offsetof(zfs_snapentry_t, se_node));
mutex_init(&zsb->z_ctldir_lock, NULL, MUTEX_DEFAULT, NULL);
*zsbp = zsb;
return (0);
out:
dmu_objset_disown(os, zsb);
*zsbp = NULL;
kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
static void
ti_iic_attach(struct device *parent, struct device *self, void *args)
{
struct ti_iic_softc *sc = (struct ti_iic_softc *)self;
struct armv7_attach_args *aa = args;
struct i2cbus_attach_args iba;
uint16_t rev;
const char *mode;
u_int state;
char buf[20];
char *pin;
/* BBB specific pin names */
char *pins[6] = {"I2C0_SDA", "I2C0_SCL",
"SPIO_D1", "SPI0_CS0",
"UART1_CTSn", "UART1_RTSn"};
sc->sc_iot = aa->aa_iot;
rw_init(&sc->sc_buslock, "tiiilk");
sc->sc_rxthres = sc->sc_txthres = 4;
if (bus_space_map(sc->sc_iot, aa->aa_dev->mem[0].addr,
aa->aa_dev->mem[0].size, 0, &sc->sc_ioh))
panic("%s: bus_space_map failed!");
sc->sc_ih = arm_intr_establish(aa->aa_dev->irq[0], IPL_NET,
ti_iic_intr, sc, DEVNAME(sc));
prcm_enablemodule(PRCM_I2C0 + aa->aa_dev->unit);
if (board_id == BOARD_ID_AM335X_BEAGLEBONE) {
pin = pins[aa->aa_dev->unit * 2];
snprintf(buf, sizeof buf, "I2C%d_SDA", aa->aa_dev->unit);
if (sitara_cm_padconf_set(pin, buf,
(0x01 << 4) | (0x01 << 5) | (0x01 << 6)) != 0) {
printf(": can't switch %s pad\n", buf);
return;
}
if (sitara_cm_padconf_get(pin, &mode, &state) == 0) {
printf(": %s state %d ", mode, state);
}
pin = pins[aa->aa_dev->unit * 2 + 1];
snprintf(buf, sizeof buf, "I2C%d_SCL", aa->aa_dev->unit);
if (sitara_cm_padconf_set(pin, buf,
(0x01 << 4) | (0x01 << 5) | (0x01 << 6)) != 0) {
printf(": can't switch %s pad\n", buf);
return;
}
if (sitara_cm_padconf_get(pin, &mode, &state) == 0) {
printf(": %s state %d ", mode, state);
}
}
rev = I2C_READ_REG(sc, AM335X_I2C_REVNB_LO);
printf(" rev %d.%d\n",
(int)I2C_REVNB_LO_MAJOR(rev),
(int)I2C_REVNB_LO_MINOR(rev));
ti_iic_reset(sc);
ti_iic_flush(sc);
sc->sc_ic.ic_cookie = sc;
sc->sc_ic.ic_acquire_bus = ti_iic_acquire_bus;
sc->sc_ic.ic_release_bus = ti_iic_release_bus;
sc->sc_ic.ic_exec = ti_iic_exec;
bzero(&iba, sizeof iba);
iba.iba_name = "iic";
iba.iba_tag = &sc->sc_ic;
(void) config_found(&sc->sc_dev, &iba, iicbus_print);
}
/*
* srpt_ch_alloc()
*/
srpt_channel_t *
srpt_ch_alloc(srpt_target_port_t *tgt, uint8_t port)
{
ibt_status_t status;
srpt_channel_t *ch;
ibt_cq_attr_t cq_attr;
ibt_rc_chan_alloc_args_t ch_args;
uint32_t cq_real_size;
srpt_ioc_t *ioc;
ASSERT(tgt != NULL);
ioc = tgt->tp_ioc;
ASSERT(ioc != NULL);
ch = kmem_zalloc(sizeof (*ch), KM_SLEEP);
rw_init(&ch->ch_rwlock, NULL, RW_DRIVER, NULL);
mutex_init(&ch->ch_reflock, NULL, MUTEX_DRIVER, NULL);
cv_init(&ch->ch_cv_complete, NULL, CV_DRIVER, NULL);
ch->ch_refcnt = 1;
ch->ch_cv_waiters = 0;
ch->ch_state = SRPT_CHANNEL_CONNECTING;
ch->ch_tgt = tgt;
ch->ch_req_lim_delta = 0;
ch->ch_ti_iu_len = 0;
cq_attr.cq_size = srpt_send_msg_depth * 2;
cq_attr.cq_sched = 0;
cq_attr.cq_flags = IBT_CQ_NO_FLAGS;
status = ibt_alloc_cq(ioc->ioc_ibt_hdl, &cq_attr, &ch->ch_scq_hdl,
&cq_real_size);
if (status != IBT_SUCCESS) {
SRPT_DPRINTF_L1("ch_alloc, send CQ alloc error (%d)",
status);
goto scq_alloc_err;
}
cq_attr.cq_size = srpt_send_msg_depth + 1;
cq_attr.cq_sched = 0;
cq_attr.cq_flags = IBT_CQ_NO_FLAGS;
status = ibt_alloc_cq(ioc->ioc_ibt_hdl, &cq_attr, &ch->ch_rcq_hdl,
&cq_real_size);
if (status != IBT_SUCCESS) {
SRPT_DPRINTF_L2("ch_alloc, receive CQ alloc error (%d)",
status);
goto rcq_alloc_err;
}
ibt_set_cq_handler(ch->ch_scq_hdl, srpt_ch_scq_hdlr, ch);
ibt_set_cq_handler(ch->ch_rcq_hdl, srpt_ch_rcq_hdlr, ch);
(void) ibt_enable_cq_notify(ch->ch_scq_hdl, IBT_NEXT_COMPLETION);
(void) ibt_enable_cq_notify(ch->ch_rcq_hdl, IBT_NEXT_COMPLETION);
ch_args.rc_flags = IBT_WR_SIGNALED;
/* Maker certain initiator can not read/write our memory */
ch_args.rc_control = 0;
ch_args.rc_hca_port_num = port;
/*
* Any SRP IU can result in a number of STMF data buffer transfers
* and those transfers themselves could span multiple initiator
* buffers. Therefore, the number of send WQE's actually required
* can vary. Here we assume that on average an I/O will require
* no more than SRPT_MAX_OUT_IO_PER_CMD send WQE's. In practice
* this will prevent send work queue overrun, but we will also
* inform STMF to throttle I/O should the work queue become full.
*
* If the HCA tells us the max outstanding WRs for a channel is
* lower than our default, use the HCA value.
*/
ch_args.rc_sizes.cs_sq = min(ioc->ioc_attr.hca_max_chan_sz,
(srpt_send_msg_depth * SRPT_MAX_OUT_IO_PER_CMD));
ch_args.rc_sizes.cs_rq = 0;
ch_args.rc_sizes.cs_sq_sgl = 2;
ch_args.rc_sizes.cs_rq_sgl = 0;
ch_args.rc_scq = ch->ch_scq_hdl;
ch_args.rc_rcq = ch->ch_rcq_hdl;
ch_args.rc_pd = ioc->ioc_pd_hdl;
ch_args.rc_clone_chan = NULL;
ch_args.rc_srq = ioc->ioc_srq_hdl;
status = ibt_alloc_rc_channel(ioc->ioc_ibt_hdl, IBT_ACHAN_USES_SRQ,
&ch_args, &ch->ch_chan_hdl, &ch->ch_sizes);
if (status != IBT_SUCCESS) {
SRPT_DPRINTF_L2("ch_alloc, IBT channel alloc error (%d)",
status);
goto qp_alloc_err;
}
/*
* Create pool of send WQE entries to map send wqe work IDs
* to various types (specifically in error cases where OP
* is not known).
*/
ch->ch_num_swqe = ch->ch_sizes.cs_sq;
SRPT_DPRINTF_L2("ch_alloc, number of SWQEs = %u", ch->ch_num_swqe);
ch->ch_swqe = kmem_zalloc(sizeof (srpt_swqe_t) * ch->ch_num_swqe,
KM_SLEEP);
if (ch->ch_swqe == NULL) {
SRPT_DPRINTF_L2("ch_alloc, SWQE alloc error");
(void) ibt_free_channel(ch->ch_chan_hdl);
goto qp_alloc_err;
}
mutex_init(&ch->ch_swqe_lock, NULL, MUTEX_DRIVER, NULL);
ch->ch_head = 1;
for (ch->ch_tail = 1; ch->ch_tail < ch->ch_num_swqe -1; ch->ch_tail++) {
ch->ch_swqe[ch->ch_tail].sw_next = ch->ch_tail + 1;
}
ch->ch_swqe[ch->ch_tail].sw_next = 0;
ibt_set_chan_private(ch->ch_chan_hdl, ch);
return (ch);
qp_alloc_err:
(void) ibt_free_cq(ch->ch_rcq_hdl);
rcq_alloc_err:
(void) ibt_free_cq(ch->ch_scq_hdl);
scq_alloc_err:
cv_destroy(&ch->ch_cv_complete);
mutex_destroy(&ch->ch_reflock);
rw_destroy(&ch->ch_rwlock);
kmem_free(ch, sizeof (*ch));
return (NULL);
}
/************************************************************************
* iumfs_alloc_node()
*
* 新しい vnode 及び iumnode を確保する。
*
* 引数:
* vfsp : vfs 構造体
* vpp : 呼び出し側から渡された vnode 構造体のポインタのアドレス
* flag : 作成する vnode のフラグ(VROOT, VISSWAP 等)
* type : 作成する vnode のタイプ(VDIR, VREG 等)
* nodeid : 作成する vnode のノード番号(0の場合自動割当)
*
* 戻り値
* 正常時 : SUCCESS(=0)
* エラー時 : 0 以外
*
************************************************************************/
int
iumfs_alloc_node(vfs_t *vfsp, vnode_t **nvpp, uint_t flag, enum vtype type, ino_t nodeid)
{
vnode_t *vp;
iumnode_t *inp;
iumfs_t *iumfsp; // ファイルシステム型依存のプライベートデータ構造体
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node is called\n"));
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node: type=%d\n",type));
iumfsp = VFS2IUMFS(vfsp);
// vnode 構造体を確保
#ifdef SOL10
// Solaris 10 では直接 vnode 構造体を alloc してはいけない。
vp = vn_alloc(KM_NOSLEEP);
#else
// Solaris 9 ではファイルシステム自身で vnode 構造体を alloc する。
vp = (vnode_t *) kmem_zalloc(sizeof (vnode_t), KM_NOSLEEP);
#endif
//ファイルシステム型依存のノード情報(iumnode 構造体)を確保
inp = (iumnode_t *) kmem_zalloc(sizeof (iumnode_t), KM_NOSLEEP);
/*
* どちらかでも確保できなかったら ENOMEM を返す
*/
if (vp == NULL || inp == NULL) {
cmn_err(CE_WARN, "iumfs_alloc_node: kmem_zalloc failed\n");
if (vp != NULL)
#ifdef SOL10
vn_free(vp);
#else
kmem_free(vp, sizeof (vnode_t));
#endif
if (inp != NULL)
kmem_free(inp, sizeof (iumnode_t));
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node return(ENOMEM)\n"));
return (ENOMEM);
}
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node: allocated vnode = 0x%p\n", vp));
/*
* 確保した vnode を初期化
* VN_INIT マクロの中で、v_count の初期値を 1 にセットする。
* これによって、ファイルシステムの意図しないタイミングで iumfs_inactive()
* が呼ばれてしまうのを防ぐ。
*/
VN_INIT(vp, vfsp, type, 0);
// ファイルシステム型依存の vnode 操作構造体のアドレスをセット
#ifdef SOL10
vn_setops(vp, iumfs_vnodeops);
#else
vp->v_op = &iumfs_vnodeops;
#endif
// v_flag にフラグをセット
vp->v_flag &= flag;
/*
* 確保した iumnode を初期化 (IN_INIT マクロは使わない）
*/
mutex_init(&(inp)->i_dlock, NULL, MUTEX_DEFAULT, NULL);
inp->vattr.va_mask = AT_ALL;
inp->vattr.va_uid = 0;
inp->vattr.va_gid = 0;
inp->vattr.va_blksize = BLOCKSIZE;
inp->vattr.va_nlink = 1;
inp->vattr.va_rdev = 0;
rw_init(&(inp)->i_listlock,NULL,RW_DRIVER,NULL);
#ifdef SOL10
#else
inp->vattr.va_vcode = 1;
#endif
/*
* vattr の va_fsid は dev_t(=ulong_t), これに対して vfs の
* vfs_fsid は int 型の配列(int[2])を含む構造体。
* なので、iumfs_mount() でもとめたデバイス番号を入れておく。
*/
inp->vattr.va_fsid = vfsp->vfs_dev;
inp->vattr.va_type = type;
inp->vattr.va_atime = \
inp->vattr.va_ctime = \
inp->vattr.va_mtime = iumfs_get_current_time();
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node: va_fsid = 0x%x\n", inp->vattr.va_fsid));
/*
* vnode に iumnode 構造体へのポインタをセット
* 逆に、iumnode にも vnode 構造体へのポインタをセット
*/
vp->v_data = (caddr_t) inp;
inp->vnode = vp;
/*
* ノード番号（iノード番号）をセット。
* もし指定されている場合はそれを使い、指定が無い場合には
* 単純に１づつ増やしていく。
*/
if( (inp->vattr.va_nodeid = nodeid) == 0) {
mutex_enter(&(iumfsp->iumfs_lock));
inp->vattr.va_nodeid = ++(iumfsp->iumfs_last_nodeid);
mutex_exit(&(iumfsp->iumfs_lock));
}
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node: new nodeid = %d \n", inp->vattr.va_nodeid));
//新しい iumnode をノードのリンクリストに新規のノードを追加
iumfs_add_node_to_list(vfsp, vp);
// 渡された vnode 構造体のポインタに確保した vnode のアドレスをセット
*nvpp = vp;
DEBUG_PRINT((CE_CONT, "iumfs_alloc_node: return(%d)\n", SUCCESS));
return (SUCCESS);
}
/*
* General fork call. Note that another LWP in the process may call exec()
* or exit() while we are forking. It's safe to continue here, because
* neither operation will complete until all LWPs have exited the process.
*/
int
fork1(struct lwp *l1, int flags, int exitsig, void *stack, size_t stacksize,
void (*func)(void *), void *arg, register_t *retval,
struct proc **rnewprocp)
{
struct proc *p1, *p2, *parent;
struct plimit *p1_lim;
uid_t uid;
struct lwp *l2;
int count;
vaddr_t uaddr;
int tnprocs;
int tracefork;
int error = 0;
p1 = l1->l_proc;
uid = kauth_cred_getuid(l1->l_cred);
tnprocs = atomic_inc_uint_nv(&nprocs);
/*
* Although process entries are dynamically created, we still keep
* a global limit on the maximum number we will create.
*/
if (__predict_false(tnprocs >= maxproc))
error = -1;
else
error = kauth_authorize_process(l1->l_cred,
KAUTH_PROCESS_FORK, p1, KAUTH_ARG(tnprocs), NULL, NULL);
if (error) {
static struct timeval lasttfm;
atomic_dec_uint(&nprocs);
if (ratecheck(&lasttfm, &fork_tfmrate))
tablefull("proc", "increase kern.maxproc or NPROC");
if (forkfsleep)
kpause("forkmx", false, forkfsleep, NULL);
return EAGAIN;
}
/*
* Enforce limits.
*/
count = chgproccnt(uid, 1);
if (__predict_false(count > p1->p_rlimit[RLIMIT_NPROC].rlim_cur)) {
if (kauth_authorize_process(l1->l_cred, KAUTH_PROCESS_RLIMIT,
p1, KAUTH_ARG(KAUTH_REQ_PROCESS_RLIMIT_BYPASS),
&p1->p_rlimit[RLIMIT_NPROC], KAUTH_ARG(RLIMIT_NPROC)) != 0) {
(void)chgproccnt(uid, -1);
atomic_dec_uint(&nprocs);
if (forkfsleep)
kpause("forkulim", false, forkfsleep, NULL);
return EAGAIN;
}
}
/*
* Allocate virtual address space for the U-area now, while it
* is still easy to abort the fork operation if we're out of
* kernel virtual address space.
*/
uaddr = uvm_uarea_alloc();
if (__predict_false(uaddr == 0)) {
(void)chgproccnt(uid, -1);
atomic_dec_uint(&nprocs);
return ENOMEM;
}
/*
* We are now committed to the fork. From here on, we may
* block on resources, but resource allocation may NOT fail.
*/
/* Allocate new proc. */
p2 = proc_alloc();
/*
* Make a proc table entry for the new process.
* Start by zeroing the section of proc that is zero-initialized,
* then copy the section that is copied directly from the parent.
*/
memset(&p2->p_startzero, 0,
(unsigned) ((char *)&p2->p_endzero - (char *)&p2->p_startzero));
memcpy(&p2->p_startcopy, &p1->p_startcopy,
(unsigned) ((char *)&p2->p_endcopy - (char *)&p2->p_startcopy));
TAILQ_INIT(&p2->p_sigpend.sp_info);
LIST_INIT(&p2->p_lwps);
LIST_INIT(&p2->p_sigwaiters);
/*
* Duplicate sub-structures as needed.
* Increase reference counts on shared objects.
* Inherit flags we want to keep. The flags related to SIGCHLD
* handling are important in order to keep a consistent behaviour
* for the child after the fork. If we are a 32-bit process, the
* child will be too.
*/
p2->p_flag =
p1->p_flag & (PK_SUGID | PK_NOCLDWAIT | PK_CLDSIGIGN | PK_32);
p2->p_emul = p1->p_emul;
p2->p_execsw = p1->p_execsw;
if (flags & FORK_SYSTEM) {
/*
* Mark it as a system process. Set P_NOCLDWAIT so that
* children are reparented to init(8) when they exit.
* init(8) can easily wait them out for us.
*/
p2->p_flag |= (PK_SYSTEM | PK_NOCLDWAIT);
}
mutex_init(&p2->p_stmutex, MUTEX_DEFAULT, IPL_HIGH);
mutex_init(&p2->p_auxlock, MUTEX_DEFAULT, IPL_NONE);
rw_init(&p2->p_reflock);
cv_init(&p2->p_waitcv, "wait");
cv_init(&p2->p_lwpcv, "lwpwait");
/*
* Share a lock between the processes if they are to share signal
* state: we must synchronize access to it.
*/
if (flags & FORK_SHARESIGS) {
p2->p_lock = p1->p_lock;
mutex_obj_hold(p1->p_lock);
} else
p2->p_lock = mutex_obj_alloc(MUTEX_DEFAULT, IPL_NONE);
kauth_proc_fork(p1, p2);
p2->p_raslist = NULL;
#if defined(__HAVE_RAS)
ras_fork(p1, p2);
#endif
/* bump references to the text vnode (for procfs) */
p2->p_textvp = p1->p_textvp;
if (p2->p_textvp)
vref(p2->p_textvp);
if (flags & FORK_SHAREFILES)
fd_share(p2);
else if (flags & FORK_CLEANFILES)
p2->p_fd = fd_init(NULL);
else
p2->p_fd = fd_copy();
/* XXX racy */
p2->p_mqueue_cnt = p1->p_mqueue_cnt;
if (flags & FORK_SHARECWD)
cwdshare(p2);
else
p2->p_cwdi = cwdinit();
/*
* Note: p_limit (rlimit stuff) is copy-on-write, so normally
* we just need increase pl_refcnt.
*/
p1_lim = p1->p_limit;
if (!p1_lim->pl_writeable) {
lim_addref(p1_lim);
p2->p_limit = p1_lim;
} else {
p2->p_limit = lim_copy(p1_lim);
}
if (flags & FORK_PPWAIT) {
/* Mark ourselves as waiting for a child. */
l1->l_pflag |= LP_VFORKWAIT;
p2->p_lflag = PL_PPWAIT;
p2->p_vforklwp = l1;
} else {
p2->p_lflag = 0;
}
p2->p_sflag = 0;
p2->p_slflag = 0;
parent = (flags & FORK_NOWAIT) ? initproc : p1;
p2->p_pptr = parent;
p2->p_ppid = parent->p_pid;
LIST_INIT(&p2->p_children);
p2->p_aio = NULL;
#ifdef KTRACE
/*
* Copy traceflag and tracefile if enabled.
* If not inherited, these were zeroed above.
*/
if (p1->p_traceflag & KTRFAC_INHERIT) {
mutex_enter(&ktrace_lock);
p2->p_traceflag = p1->p_traceflag;
if ((p2->p_tracep = p1->p_tracep) != NULL)
ktradref(p2);
mutex_exit(&ktrace_lock);
}
#endif
/*
* Create signal actions for the child process.
*/
p2->p_sigacts = sigactsinit(p1, flags & FORK_SHARESIGS);
mutex_enter(p1->p_lock);
p2->p_sflag |=
(p1->p_sflag & (PS_STOPFORK | PS_STOPEXEC | PS_NOCLDSTOP));
sched_proc_fork(p1, p2);
mutex_exit(p1->p_lock);
p2->p_stflag = p1->p_stflag;
/*
* p_stats.
* Copy parts of p_stats, and zero out the rest.
*/
p2->p_stats = pstatscopy(p1->p_stats);
/*
* Set up the new process address space.
*/
uvm_proc_fork(p1, p2, (flags & FORK_SHAREVM) ? true : false);
/*
* Finish creating the child process.
* It will return through a different path later.
*/
lwp_create(l1, p2, uaddr, (flags & FORK_PPWAIT) ? LWP_VFORK : 0,
stack, stacksize, (func != NULL) ? func : child_return, arg, &l2,
l1->l_class);
/*
* Inherit l_private from the parent.
* Note that we cannot use lwp_setprivate() here since that
* also sets the CPU TLS register, which is incorrect if the
* process has changed that without letting the kernel know.
*/
l2->l_private = l1->l_private;
/*
* If emulation has a process fork hook, call it now.
*/
if (p2->p_emul->e_proc_fork)
(*p2->p_emul->e_proc_fork)(p2, l1, flags);
/*
* ...and finally, any other random fork hooks that subsystems
* might have registered.
*/
doforkhooks(p2, p1);
SDT_PROBE(proc,,,create, p2, p1, flags, 0, 0);
/*
* It's now safe for the scheduler and other processes to see the
* child process.
*/
mutex_enter(proc_lock);
if (p1->p_session->s_ttyvp != NULL && p1->p_lflag & PL_CONTROLT)
p2->p_lflag |= PL_CONTROLT;
LIST_INSERT_HEAD(&parent->p_children, p2, p_sibling);
p2->p_exitsig = exitsig; /* signal for parent on exit */
/*
* We don't want to tracefork vfork()ed processes because they
* will not receive the SIGTRAP until it is too late.
*/
tracefork = (p1->p_slflag & (PSL_TRACEFORK|PSL_TRACED)) ==
(PSL_TRACEFORK|PSL_TRACED) && (flags && FORK_PPWAIT) == 0;
if (tracefork) {
p2->p_slflag |= PSL_TRACED;
p2->p_opptr = p2->p_pptr;
if (p2->p_pptr != p1->p_pptr) {
struct proc *parent1 = p2->p_pptr;
if (parent1->p_lock < p2->p_lock) {
if (!mutex_tryenter(parent1->p_lock)) {
mutex_exit(p2->p_lock);
mutex_enter(parent1->p_lock);
}
} else if (parent1->p_lock > p2->p_lock) {
mutex_enter(parent1->p_lock);
}
parent1->p_slflag |= PSL_CHTRACED;
proc_reparent(p2, p1->p_pptr);
if (parent1->p_lock != p2->p_lock)
mutex_exit(parent1->p_lock);
}
/*
* Set ptrace status.
*/
p1->p_fpid = p2->p_pid;
p2->p_fpid = p1->p_pid;
}
LIST_INSERT_AFTER(p1, p2, p_pglist);
LIST_INSERT_HEAD(&allproc, p2, p_list);
p2->p_trace_enabled = trace_is_enabled(p2);
#ifdef __HAVE_SYSCALL_INTERN
(*p2->p_emul->e_syscall_intern)(p2);
#endif
/*
* Update stats now that we know the fork was successful.
*/
uvmexp.forks++;
if (flags & FORK_PPWAIT)
uvmexp.forks_ppwait++;
if (flags & FORK_SHAREVM)
uvmexp.forks_sharevm++;
/*
* Pass a pointer to the new process to the caller.
*/
if (rnewprocp != NULL)
*rnewprocp = p2;
if (ktrpoint(KTR_EMUL))
p2->p_traceflag |= KTRFAC_TRC_EMUL;
/*
* Notify any interested parties about the new process.
*/
if (!SLIST_EMPTY(&p1->p_klist)) {
mutex_exit(proc_lock);
KNOTE(&p1->p_klist, NOTE_FORK | p2->p_pid);
mutex_enter(proc_lock);
}
/*
* Make child runnable, set start time, and add to run queue except
* if the parent requested the child to start in SSTOP state.
*/
mutex_enter(p2->p_lock);
/*
* Start profiling.
*/
if ((p2->p_stflag & PST_PROFIL) != 0) {
mutex_spin_enter(&p2->p_stmutex);
startprofclock(p2);
mutex_spin_exit(&p2->p_stmutex);
}
getmicrotime(&p2->p_stats->p_start);
p2->p_acflag = AFORK;
lwp_lock(l2);
KASSERT(p2->p_nrlwps == 1);
if (p2->p_sflag & PS_STOPFORK) {
struct schedstate_percpu *spc = &l2->l_cpu->ci_schedstate;
p2->p_nrlwps = 0;
p2->p_stat = SSTOP;
p2->p_waited = 0;
p1->p_nstopchild++;
l2->l_stat = LSSTOP;
KASSERT(l2->l_wchan == NULL);
lwp_unlock_to(l2, spc->spc_lwplock);
} else {
p2->p_nrlwps = 1;
p2->p_stat = SACTIVE;
l2->l_stat = LSRUN;
sched_enqueue(l2, false);
lwp_unlock(l2);
}
/*
* Return child pid to parent process,
* marking us as parent via retval[1].
*/
if (retval != NULL) {
retval[0] = p2->p_pid;
retval[1] = 0;
}
mutex_exit(p2->p_lock);
/*
* Preserve synchronization semantics of vfork. If waiting for
* child to exec or exit, sleep until it clears LP_VFORKWAIT.
*/
#if 0
while (l1->l_pflag & LP_VFORKWAIT) {
cv_wait(&l1->l_waitcv, proc_lock);
}
#else
while (p2->p_lflag & PL_PPWAIT)
cv_wait(&p1->p_waitcv, proc_lock);
#endif
/*
* Let the parent know that we are tracing its child.
*/
if (tracefork) {
ksiginfo_t ksi;
KSI_INIT_EMPTY(&ksi);
ksi.ksi_signo = SIGTRAP;
ksi.ksi_lid = l1->l_lid;
kpsignal(p1, &ksi, NULL);
}
mutex_exit(proc_lock);
return 0;
}
/* recursive rwlocks; */
void
rrw_init(struct rrwlock *rrwl, char *name)
{
memset(rrwl, 0, sizeof(struct rrwlock));
rw_init(&rrwl->rrwl_lock, name);
}
void
ichiic_attach(struct device *parent, struct device *self, void *aux)
{
struct ichiic_softc *sc = (struct ichiic_softc *)self;
struct pci_attach_args *pa = aux;
struct i2cbus_attach_args iba;
pcireg_t conf;
bus_size_t iosize;
pci_intr_handle_t ih;
const char *intrstr = NULL;
/* Read configuration */
conf = pci_conf_read(pa->pa_pc, pa->pa_tag, ICH_SMB_HOSTC);
DPRINTF((": conf 0x%08x", conf));
if ((conf & ICH_SMB_HOSTC_HSTEN) == 0) {
printf(": SMBus disabled\n");
return;
}
/* Map I/O space */
if (pci_mapreg_map(pa, ICH_SMB_BASE, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_iot, &sc->sc_ioh, NULL, &iosize, 0)) {
printf(": can't map i/o space\n");
return;
}
sc->sc_poll = 1;
if (conf & ICH_SMB_HOSTC_SMIEN) {
/* No PCI IRQ */
printf(": SMI");
} else {
/* Install interrupt handler */
if (pci_intr_map(pa, &ih) == 0) {
intrstr = pci_intr_string(pa->pa_pc, ih);
sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO,
ichiic_intr, sc, sc->sc_dev.dv_xname);
if (sc->sc_ih != NULL) {
printf(": %s", intrstr);
sc->sc_poll = 0;
}
}
if (sc->sc_poll)
printf(": polling");
}
printf("\n");
/* Attach I2C bus */
rw_init(&sc->sc_i2c_lock, "iiclk");
sc->sc_i2c_tag.ic_cookie = sc;
sc->sc_i2c_tag.ic_acquire_bus = ichiic_i2c_acquire_bus;
sc->sc_i2c_tag.ic_release_bus = ichiic_i2c_release_bus;
sc->sc_i2c_tag.ic_exec = ichiic_i2c_exec;
bzero(&iba, sizeof(iba));
iba.iba_name = "iic";
iba.iba_tag = &sc->sc_i2c_tag;
config_found(self, &iba, iicbus_print);
return;
}
struct tftphdr *w_init()
{
return rw_init(0);
} /* write-behind */
/* init for write-behind */
struct tftphdr *w_init(void)
{
return rw_init(0);
}
/* init for read-ahead */
struct tftphdr *r_init(void)
{
return rw_init(1);
}
/*
* smbfs mount vfsop
* Set up mount info record and attach it to vfs struct.
*/
static int
smbfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr)
{
char *data = uap->dataptr;
int error;
smbnode_t *rtnp = NULL; /* root of this fs */
smbmntinfo_t *smi = NULL;
dev_t smbfs_dev;
int version;
int devfd;
zone_t *zone = curproc->p_zone;
zone_t *mntzone = NULL;
smb_share_t *ssp = NULL;
smb_cred_t scred;
int flags, sec;
STRUCT_DECL(smbfs_args, args); /* smbfs mount arguments */
if ((error = secpolicy_fs_mount(cr, mvp, vfsp)) != 0)
return (error);
if (mvp->v_type != VDIR)
return (ENOTDIR);
/*
* get arguments
*
* uap->datalen might be different from sizeof (args)
* in a compatible situation.
*/
STRUCT_INIT(args, get_udatamodel());
bzero(STRUCT_BUF(args), SIZEOF_STRUCT(smbfs_args, DATAMODEL_NATIVE));
if (copyin(data, STRUCT_BUF(args), MIN(uap->datalen,
SIZEOF_STRUCT(smbfs_args, DATAMODEL_NATIVE))))
return (EFAULT);
/*
* Check mount program version
*/
version = STRUCT_FGET(args, version);
if (version != SMBFS_VERSION) {
cmn_err(CE_WARN, "mount version mismatch:"
" kernel=%d, mount=%d\n",
SMBFS_VERSION, version);
return (EINVAL);
}
/*
* Deal with re-mount requests.
*/
if (uap->flags & MS_REMOUNT) {
cmn_err(CE_WARN, "MS_REMOUNT not implemented");
return (ENOTSUP);
}
/*
* Check for busy
*/
mutex_enter(&mvp->v_lock);
if (!(uap->flags & MS_OVERLAY) &&
(mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
mutex_exit(&mvp->v_lock);
return (EBUSY);
}
mutex_exit(&mvp->v_lock);
/*
* Get the "share" from the netsmb driver (ssp).
* It is returned with a "ref" (hold) for us.
* Release this hold: at errout below, or in
* smbfs_freevfs().
*/
devfd = STRUCT_FGET(args, devfd);
error = smb_dev2share(devfd, &ssp);
if (error) {
cmn_err(CE_WARN, "invalid device handle %d (%d)\n",
devfd, error);
return (error);
}
/*
* Use "goto errout" from here on.
* See: ssp, smi, rtnp, mntzone
*/
/*
* Determine the zone we're being mounted into.
*/
zone_hold(mntzone = zone); /* start with this assumption */
if (getzoneid() == GLOBAL_ZONEID) {
zone_rele(mntzone);
mntzone = zone_find_by_path(refstr_value(vfsp->vfs_mntpt));
ASSERT(mntzone != NULL);
if (mntzone != zone) {
error = EBUSY;
goto errout;
}
}
/*
* Stop the mount from going any further if the zone is going away.
*/
if (zone_status_get(mntzone) >= ZONE_IS_SHUTTING_DOWN) {
error = EBUSY;
goto errout;
}
/*
* On a Trusted Extensions client, we may have to force read-only
* for read-down mounts.
*/
if (is_system_labeled()) {
void *addr;
int ipvers = 0;
struct smb_vc *vcp;
vcp = SSTOVC(ssp);
addr = smb_vc_getipaddr(vcp, &ipvers);
error = smbfs_mount_label_policy(vfsp, addr, ipvers, cr);
if (error > 0)
goto errout;
if (error == -1) {
/* change mount to read-only to prevent write-down */
vfs_setmntopt(vfsp, MNTOPT_RO, NULL, 0);
}
}
/* Prevent unload. */
atomic_inc_32(&smbfs_mountcount);
/*
* Create a mount record and link it to the vfs struct.
* No more possiblities for errors from here on.
* Tear-down of this stuff is in smbfs_free_smi()
*
* Compare with NFS: nfsrootvp()
*/
smi = kmem_zalloc(sizeof (*smi), KM_SLEEP);
mutex_init(&smi->smi_lock, NULL, MUTEX_DEFAULT, NULL);
cv_init(&smi->smi_statvfs_cv, NULL, CV_DEFAULT, NULL);
rw_init(&smi->smi_hash_lk, NULL, RW_DEFAULT, NULL);
smbfs_init_hash_avl(&smi->smi_hash_avl);
smi->smi_share = ssp;
ssp = NULL;
/*
* Convert the anonymous zone hold acquired via zone_hold() above
* into a zone reference.
*/
zone_init_ref(&smi->smi_zone_ref);
zone_hold_ref(mntzone, &smi->smi_zone_ref, ZONE_REF_SMBFS);
zone_rele(mntzone);
mntzone = NULL;
/*
* Initialize option defaults
*/
smi->smi_flags = SMI_LLOCK;
smi->smi_acregmin = SEC2HR(SMBFS_ACREGMIN);
smi->smi_acregmax = SEC2HR(SMBFS_ACREGMAX);
smi->smi_acdirmin = SEC2HR(SMBFS_ACDIRMIN);
smi->smi_acdirmax = SEC2HR(SMBFS_ACDIRMAX);
/*
* All "generic" mount options have already been
* handled in vfs.c:domount() - see mntopts stuff.
* Query generic options using vfs_optionisset().
*/
if (vfs_optionisset(vfsp, MNTOPT_INTR, NULL))
smi->smi_flags |= SMI_INT;
if (vfs_optionisset(vfsp, MNTOPT_ACL, NULL))
smi->smi_flags |= SMI_ACL;
/*
* Get the mount options that come in as smbfs_args,
* starting with args.flags (SMBFS_MF_xxx)
*/
flags = STRUCT_FGET(args, flags);
smi->smi_uid = STRUCT_FGET(args, uid);
smi->smi_gid = STRUCT_FGET(args, gid);
smi->smi_fmode = STRUCT_FGET(args, file_mode) & 0777;
smi->smi_dmode = STRUCT_FGET(args, dir_mode) & 0777;
/*
* Hande the SMBFS_MF_xxx flags.
*/
if (flags & SMBFS_MF_NOAC)
smi->smi_flags |= SMI_NOAC;
if (flags & SMBFS_MF_ACREGMIN) {
sec = STRUCT_FGET(args, acregmin);
if (sec < 0 || sec > SMBFS_ACMINMAX)
sec = SMBFS_ACMINMAX;
smi->smi_acregmin = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACREGMAX) {
sec = STRUCT_FGET(args, acregmax);
if (sec < 0 || sec > SMBFS_ACMAXMAX)
sec = SMBFS_ACMAXMAX;
smi->smi_acregmax = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACDIRMIN) {
sec = STRUCT_FGET(args, acdirmin);
if (sec < 0 || sec > SMBFS_ACMINMAX)
sec = SMBFS_ACMINMAX;
smi->smi_acdirmin = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACDIRMAX) {
sec = STRUCT_FGET(args, acdirmax);
if (sec < 0 || sec > SMBFS_ACMAXMAX)
sec = SMBFS_ACMAXMAX;
smi->smi_acdirmax = SEC2HR(sec);
}
/*
* Get attributes of the remote file system,
* i.e. ACL support, named streams, etc.
*/
smb_credinit(&scred, cr);
error = smbfs_smb_qfsattr(smi->smi_share, &smi->smi_fsa, &scred);
smb_credrele(&scred);
if (error) {
SMBVDEBUG("smbfs_smb_qfsattr error %d\n", error);
}
/*
* We enable XATTR by default (via smbfs_mntopts)
* but if the share does not support named streams,
* force the NOXATTR option (also clears XATTR).
* Caller will set or clear VFS_XATTR after this.
*/
if ((smi->smi_fsattr & FILE_NAMED_STREAMS) == 0)
vfs_setmntopt(vfsp, MNTOPT_NOXATTR, NULL, 0);
/*
* Ditto ACLs (disable if not supported on this share)
*/
if ((smi->smi_fsattr & FILE_PERSISTENT_ACLS) == 0) {
vfs_setmntopt(vfsp, MNTOPT_NOACL, NULL, 0);
smi->smi_flags &= ~SMI_ACL;
}
/*
* Assign a unique device id to the mount
*/
mutex_enter(&smbfs_minor_lock);
do {
smbfs_minor = (smbfs_minor + 1) & MAXMIN32;
smbfs_dev = makedevice(smbfs_major, smbfs_minor);
} while (vfs_devismounted(smbfs_dev));
mutex_exit(&smbfs_minor_lock);
vfsp->vfs_dev = smbfs_dev;
vfs_make_fsid(&vfsp->vfs_fsid, smbfs_dev, smbfsfstyp);
vfsp->vfs_data = (caddr_t)smi;
vfsp->vfs_fstype = smbfsfstyp;
vfsp->vfs_bsize = MAXBSIZE;
vfsp->vfs_bcount = 0;
smi->smi_vfsp = vfsp;
smbfs_zonelist_add(smi); /* undo in smbfs_freevfs */
/*
* Create the root vnode, which we need in unmount
* for the call to smbfs_check_table(), etc.
* Release this hold in smbfs_unmount.
*/
rtnp = smbfs_node_findcreate(smi, "\\", 1, NULL, 0, 0,
&smbfs_fattr0);
ASSERT(rtnp != NULL);
rtnp->r_vnode->v_type = VDIR;
rtnp->r_vnode->v_flag |= VROOT;
smi->smi_root = rtnp;
/*
* NFS does other stuff here too:
* async worker threads
* init kstats
*
* End of code from NFS nfsrootvp()
*/
return (0);
errout:
vfsp->vfs_data = NULL;
if (smi != NULL)
smbfs_free_smi(smi);
if (mntzone != NULL)
zone_rele(mntzone);
if (ssp != NULL)
smb_share_rele(ssp);
return (error);
}
int
zfs_sb_create(const char *osname, zfs_mntopts_t *zmo, zfs_sb_t **zsbp)
{
objset_t *os;
zfs_sb_t *zsb;
uint64_t zval;
int i, size, error;
uint64_t sa_obj;
zsb = kmem_zalloc(sizeof (zfs_sb_t), KM_SLEEP);
/*
* We claim to always be readonly so we can open snapshots;
* other ZPL code will prevent us from writing to snapshots.
*/
error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zsb, &os);
if (error) {
kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
/*
* Optional temporary mount options, free'd in zfs_sb_free().
*/
zsb->z_mntopts = (zmo ? zmo : zfs_mntopts_alloc());
/*
* Initialize the zfs-specific filesystem structure.
* Should probably make this a kmem cache, shuffle fields.
*/
zsb->z_sb = NULL;
zsb->z_parent = zsb;
zsb->z_max_blksz = SPA_OLD_MAXBLOCKSIZE;
zsb->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
zsb->z_os = os;
error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zsb->z_version);
if (error) {
goto out;
} else if (zsb->z_version > ZPL_VERSION) {
error = SET_ERROR(ENOTSUP);
goto out;
}
if ((error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &zval)) != 0)
goto out;
zsb->z_norm = (int)zval;
if ((error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &zval)) != 0)
goto out;
zsb->z_utf8 = (zval != 0);
if ((error = zfs_get_zplprop(os, ZFS_PROP_CASE, &zval)) != 0)
goto out;
zsb->z_case = (uint_t)zval;
if ((error = zfs_get_zplprop(os, ZFS_PROP_ACLTYPE, &zval)) != 0)
goto out;
zsb->z_acl_type = (uint_t)zval;
/*
* Fold case on file systems that are always or sometimes case
* insensitive.
*/
if (zsb->z_case == ZFS_CASE_INSENSITIVE ||
zsb->z_case == ZFS_CASE_MIXED)
zsb->z_norm |= U8_TEXTPREP_TOUPPER;
zsb->z_use_fuids = USE_FUIDS(zsb->z_version, zsb->z_os);
zsb->z_use_sa = USE_SA(zsb->z_version, zsb->z_os);
if (zsb->z_use_sa) {
/* should either have both of these objects or none */
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1,
&sa_obj);
if (error)
goto out;
error = zfs_get_zplprop(os, ZFS_PROP_XATTR, &zval);
if ((error == 0) && (zval == ZFS_XATTR_SA))
zsb->z_xattr_sa = B_TRUE;
} else {
/*
* Pre SA versions file systems should never touch
* either the attribute registration or layout objects.
*/
sa_obj = 0;
}
error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
&zsb->z_attr_table);
if (error)
goto out;
if (zsb->z_version >= ZPL_VERSION_SA)
sa_register_update_callback(os, zfs_sa_upgrade);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1,
&zsb->z_root);
if (error)
goto out;
ASSERT(zsb->z_root != 0);
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_UNLINKED_SET, 8, 1,
&zsb->z_unlinkedobj);
if (error)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA],
8, 1, &zsb->z_userquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA],
8, 1, &zsb->z_groupquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA],
8, 1, &zsb->z_userobjquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ,
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA],
8, 1, &zsb->z_groupobjquota_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 8, 1,
&zsb->z_fuid_obj);
if (error && error != ENOENT)
goto out;
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SHARES_DIR, 8, 1,
&zsb->z_shares_dir);
if (error && error != ENOENT)
goto out;
mutex_init(&zsb->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&zsb->z_lock, NULL, MUTEX_DEFAULT, NULL);
list_create(&zsb->z_all_znodes, sizeof (znode_t),
offsetof(znode_t, z_link_node));
rrm_init(&zsb->z_teardown_lock, B_FALSE);
rw_init(&zsb->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
rw_init(&zsb->z_fuid_lock, NULL, RW_DEFAULT, NULL);
size = MIN(1 << (highbit64(zfs_object_mutex_size)-1), ZFS_OBJ_MTX_MAX);
zsb->z_hold_size = size;
zsb->z_hold_trees = vmem_zalloc(sizeof (avl_tree_t) * size, KM_SLEEP);
zsb->z_hold_locks = vmem_zalloc(sizeof (kmutex_t) * size, KM_SLEEP);
for (i = 0; i != size; i++) {
avl_create(&zsb->z_hold_trees[i], zfs_znode_hold_compare,
sizeof (znode_hold_t), offsetof(znode_hold_t, zh_node));
mutex_init(&zsb->z_hold_locks[i], NULL, MUTEX_DEFAULT, NULL);
}
*zsbp = zsb;
return (0);
out:
dmu_objset_disown(os, zsb);
*zsbp = NULL;
kmem_free(zsb, sizeof (zfs_sb_t));
return (error);
}
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;
/* init & vdev_raidz_impl_lock */
rw_init(&vdev_raidz_impl_lock, NULL, RW_DEFAULT, NULL);
/* 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()) {
/* init kstat */
init_raidz_kstat(&raidz_impl_kstats[c],
curr_impl->name);
raidz_supp_impl[c++] = (raidz_impl_ops_t *) curr_impl;
}
}
raidz_supp_impl_cnt = c; /* number of supported impl */
raidz_supp_impl[c] = NULL; /* sentinel */
/* init kstat for original routines */
init_raidz_kstat(&(raidz_impl_kstats[raidz_supp_impl_cnt]), "original");
#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));
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 it */
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_data = zio_data_buf_alloc(BENCH_ZIO_SIZE);
VERIFY(bench_zio->io_data);
/* 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, 9,
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, 9, 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 */
zio_data_buf_free(bench_zio->io_data, BENCH_ZIO_SIZE);
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_NAMED,
sizeof (raidz_impl_kstat_t) / sizeof (kstat_named_t) *
(raidz_supp_impl_cnt + 1), KSTAT_FLAG_VIRTUAL);
if (raidz_math_kstat != NULL) {
raidz_math_kstat->ks_data = raidz_impl_kstats;
kstat_install(raidz_math_kstat);
}
/* Finish initialization */
raidz_math_initialized = B_TRUE;
if (!vdev_raidz_impl_user_set)
VERIFY0(vdev_raidz_impl_set("fastest"));
}
static struct tftphdr *w_init(void)
{
return rw_init(0); /* write-behind */
}
struct tftphdr *r_init()
{
return rw_init(1);
} /* read-ahead */
static struct tftphdr *r_init(void)
{
return rw_init(1); /* read-ahead */
}
static int
zfs_domount(vfs_t *vfsp, char *osname)
{
uint64_t recordsize, readonly;
int error = 0;
int mode;
zfsvfs_t *zfsvfs;
znode_t *zp = NULL;
ASSERT(vfsp);
ASSERT(osname);
/*
* Initialize the zfs-specific filesystem structure.
* Should probably make this a kmem cache, shuffle fields,
* and just bzero up to z_hold_mtx[].
*/
zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
zfsvfs->z_vfs = vfsp;
zfsvfs->z_parent = zfsvfs;
zfsvfs->z_assign = TXG_NOWAIT;
zfsvfs->z_max_blksz = SPA_MAXBLOCKSIZE;
zfsvfs->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
mutex_init(&zfsvfs->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&zfsvfs->z_online_recv_lock, NULL, MUTEX_DEFAULT, NULL);
list_create(&zfsvfs->z_all_znodes, sizeof (znode_t),
offsetof(znode_t, z_link_node));
rrw_init(&zfsvfs->z_teardown_lock);
rw_init(&zfsvfs->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
rw_init(&zfsvfs->z_fuid_lock, NULL, RW_DEFAULT, NULL);
if (error = dsl_prop_get_integer(osname, "recordsize", &recordsize,
NULL))
goto out;
zfsvfs->z_vfs->vfs_bsize = recordsize;
vfsp->vfs_data = zfsvfs;
vfsp->mnt_flag |= MNT_LOCAL;
vfsp->mnt_kern_flag |= MNTK_MPSAFE;
vfsp->mnt_kern_flag |= MNTK_LOOKUP_SHARED;
vfsp->mnt_kern_flag |= MNTK_SHARED_WRITES;
if (error = dsl_prop_get_integer(osname, "readonly", &readonly, NULL))
goto out;
mode = DS_MODE_OWNER;
if (readonly)
mode |= DS_MODE_READONLY;
error = dmu_objset_open(osname, DMU_OST_ZFS, mode, &zfsvfs->z_os);
if (error == EROFS) {
mode = DS_MODE_OWNER | DS_MODE_READONLY;
error = dmu_objset_open(osname, DMU_OST_ZFS, mode,
&zfsvfs->z_os);
}
if (error)
goto out;
if (error = zfs_init_fs(zfsvfs, &zp))
goto out;
/*
* Set features for file system.
*/
zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os);
if (zfsvfs->z_use_fuids) {
vfs_set_feature(vfsp, VFSFT_XVATTR);
vfs_set_feature(vfsp, VFSFT_SYSATTR_VIEWS);
vfs_set_feature(vfsp, VFSFT_ACEMASKONACCESS);
vfs_set_feature(vfsp, VFSFT_ACLONCREATE);
}
if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE) {
vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
vfs_set_feature(vfsp, VFSFT_NOCASESENSITIVE);
} else if (zfsvfs->z_case == ZFS_CASE_MIXED) {
vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
}
if (dmu_objset_is_snapshot(zfsvfs->z_os)) {
uint64_t pval;
ASSERT(mode & DS_MODE_READONLY);
atime_changed_cb(zfsvfs, B_FALSE);
readonly_changed_cb(zfsvfs, B_TRUE);
if (error = dsl_prop_get_integer(osname, "xattr", &pval, NULL))
goto out;
xattr_changed_cb(zfsvfs, pval);
zfsvfs->z_issnap = B_TRUE;
} else {
error = zfsvfs_setup(zfsvfs, B_TRUE);
}
vfs_mountedfrom(vfsp, osname);
if (!zfsvfs->z_issnap)
zfsctl_create(zfsvfs);
out:
if (error) {
if (zfsvfs->z_os)
dmu_objset_close(zfsvfs->z_os);
zfs_freezfsvfs(zfsvfs);
} else {
atomic_add_32(&zfs_active_fs_count, 1);
}
return (error);
}
static void
piixpm_attach(device_t parent, device_t self, void *aux)
{
struct piixpm_softc *sc = device_private(self);
struct pci_attach_args *pa = aux;
struct i2cbus_attach_args iba;
pcireg_t base, conf;
pcireg_t pmmisc;
pci_intr_handle_t ih;
char devinfo[256];
const char *intrstr = NULL;
sc->sc_dev = self;
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
aprint_naive("\n");
aprint_normal("\n");
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
aprint_normal_dev(self, "%s (rev. 0x%02x)\n", devinfo,
PCI_REVISION(pa->pa_class));
if (!pmf_device_register(self, piixpm_suspend, piixpm_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
/* Read configuration */
conf = pci_conf_read(pa->pa_pc, pa->pa_tag, PIIX_SMB_HOSTC);
DPRINTF(("%s: conf 0x%x\n", device_xname(self), conf));
if ((PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) ||
(PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_82371AB_PMC))
goto nopowermanagement;
/* check whether I/O access to PM regs is enabled */
pmmisc = pci_conf_read(pa->pa_pc, pa->pa_tag, PIIX_PMREGMISC);
if (!(pmmisc & 1))
goto nopowermanagement;
sc->sc_pm_iot = pa->pa_iot;
/* Map I/O space */
base = pci_conf_read(pa->pa_pc, pa->pa_tag, PIIX_PM_BASE);
if (bus_space_map(sc->sc_pm_iot, PCI_MAPREG_IO_ADDR(base),
PIIX_PM_SIZE, 0, &sc->sc_pm_ioh)) {
aprint_error_dev(self, "can't map power management I/O space\n");
goto nopowermanagement;
}
/*
* Revision 0 and 1 are PIIX4, 2 is PIIX4E, 3 is PIIX4M.
* PIIX4 and PIIX4E have a bug in the timer latch, see Errata #20
* in the "Specification update" (document #297738).
*/
acpipmtimer_attach(self, sc->sc_pm_iot, sc->sc_pm_ioh,
PIIX_PM_PMTMR,
(PCI_REVISION(pa->pa_class) < 3) ? ACPIPMT_BADLATCH : 0 );
nopowermanagement:
if ((conf & PIIX_SMB_HOSTC_HSTEN) == 0) {
aprint_normal_dev(self, "SMBus disabled\n");
return;
}
/* Map I/O space */
sc->sc_smb_iot = pa->pa_iot;
base = pci_conf_read(pa->pa_pc, pa->pa_tag, PIIX_SMB_BASE) & 0xffff;
if (bus_space_map(sc->sc_smb_iot, PCI_MAPREG_IO_ADDR(base),
PIIX_SMB_SIZE, 0, &sc->sc_smb_ioh)) {
aprint_error_dev(self, "can't map smbus I/O space\n");
return;
}
sc->sc_poll = 1;
if ((conf & PIIX_SMB_HOSTC_INTMASK) == PIIX_SMB_HOSTC_SMI) {
/* No PCI IRQ */
aprint_normal_dev(self, "interrupting at SMI");
} else if ((conf & PIIX_SMB_HOSTC_INTMASK) == PIIX_SMB_HOSTC_IRQ) {
/* Install interrupt handler */
if (pci_intr_map(pa, &ih) == 0) {
intrstr = pci_intr_string(pa->pa_pc, ih);
sc->sc_smb_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO,
piixpm_intr, sc);
if (sc->sc_smb_ih != NULL) {
aprint_normal_dev(self, "interrupting at %s",
intrstr);
sc->sc_poll = 0;
}
}
}
if (sc->sc_poll)
aprint_normal_dev(self, "polling");
aprint_normal("\n");
/* Attach I2C bus */
rw_init(&sc->sc_i2c_rwlock);
sc->sc_i2c_tag.ic_cookie = sc;
sc->sc_i2c_tag.ic_acquire_bus = piixpm_i2c_acquire_bus;
sc->sc_i2c_tag.ic_release_bus = piixpm_i2c_release_bus;
sc->sc_i2c_tag.ic_exec = piixpm_i2c_exec;
bzero(&iba, sizeof(iba));
iba.iba_tag = &sc->sc_i2c_tag;
config_found_ia(self, "i2cbus", &iba, iicbus_print);
return;
}
void
glxpcib_attach(struct device *parent, struct device *self, void *aux)
{
struct glxpcib_softc *sc = (struct glxpcib_softc *)self;
struct timecounter *tc = &sc->sc_timecounter;
#ifndef SMALL_KERNEL
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
u_int64_t wa;
#if NGPIO > 0
u_int64_t ga;
struct gpiobus_attach_args gba;
int i, gpio = 0;
#endif
u_int64_t sa;
struct i2cbus_attach_args iba;
int i2c = 0;
#endif
tc->tc_get_timecount = glxpcib_get_timecount;
tc->tc_counter_mask = 0xffffffff;
tc->tc_frequency = 3579545;
tc->tc_name = "CS5536";
#ifdef __loongson__
tc->tc_quality = 0;
#else
tc->tc_quality = 1000;
#endif
tc->tc_priv = sc;
tc_init(tc);
printf(": rev %d, 32-bit %lluHz timer",
(int)rdmsr(AMD5536_REV) & AMD5536_REV_MASK,
tc->tc_frequency);
#ifndef SMALL_KERNEL
/* Attach the watchdog timer */
sc->sc_iot = pa->pa_iot;
wa = rdmsr(MSR_LBAR_MFGPT);
if (wa & MSR_LBAR_ENABLE &&
!bus_space_map(sc->sc_iot, wa & MSR_MFGPT_ADDR_MASK,
MSR_MFGPT_SIZE, 0, &sc->sc_ioh)) {
/* count in seconds (as upper level desires) */
bus_space_write_2(sc->sc_iot, sc->sc_ioh, AMD5536_MFGPT0_SETUP,
AMD5536_MFGPT_CNT_EN | AMD5536_MFGPT_CMP2EV |
AMD5536_MFGPT_CMP2 | AMD5536_MFGPT_DIV_MASK);
wdog_register(sc, glxpcib_wdogctl_cb);
sc->sc_wdog = 1;
printf(", watchdog");
}
#if NGPIO > 0
/* map GPIO I/O space */
sc->sc_gpio_iot = pa->pa_iot;
ga = rdmsr(MSR_LBAR_GPIO);
if (ga & MSR_LBAR_ENABLE &&
!bus_space_map(sc->sc_gpio_iot, ga & MSR_GPIO_ADDR_MASK,
MSR_GPIO_SIZE, 0, &sc->sc_gpio_ioh)) {
printf(", gpio");
/* initialize pin array */
for (i = 0; i < AMD5536_GPIO_NPINS; i++) {
sc->sc_gpio_pins[i].pin_num = i;
sc->sc_gpio_pins[i].pin_caps = GPIO_PIN_INPUT |
GPIO_PIN_OUTPUT | GPIO_PIN_OPENDRAIN |
GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN |
GPIO_PIN_INVIN | GPIO_PIN_INVOUT;
/* read initial state */
sc->sc_gpio_pins[i].pin_state =
glxpcib_gpio_pin_read(sc, i);
}
/* create controller tag */
sc->sc_gpio_gc.gp_cookie = sc;
sc->sc_gpio_gc.gp_pin_read = glxpcib_gpio_pin_read;
sc->sc_gpio_gc.gp_pin_write = glxpcib_gpio_pin_write;
sc->sc_gpio_gc.gp_pin_ctl = glxpcib_gpio_pin_ctl;
gba.gba_name = "gpio";
gba.gba_gc = &sc->sc_gpio_gc;
gba.gba_pins = sc->sc_gpio_pins;
gba.gba_npins = AMD5536_GPIO_NPINS;
gpio = 1;
}
#endif /* NGPIO */
/* Map SMB I/O space */
sc->sc_smb_iot = pa->pa_iot;
sa = rdmsr(MSR_LBAR_SMB);
if (sa & MSR_LBAR_ENABLE &&
!bus_space_map(sc->sc_smb_iot, sa & MSR_SMB_ADDR_MASK,
MSR_SMB_SIZE, 0, &sc->sc_smb_ioh)) {
printf(", i2c");
/* Enable controller */
bus_space_write_1(sc->sc_smb_iot, sc->sc_smb_ioh,
AMD5536_SMB_CTL2, AMD5536_SMB_CTL2_EN |
AMD5536_SMB_CTL2_FREQ);
/* Disable interrupts */
bus_space_write_1(sc->sc_smb_iot, sc->sc_smb_ioh,
AMD5536_SMB_CTL1, 0);
/* Disable slave address */
bus_space_write_1(sc->sc_smb_iot, sc->sc_smb_ioh,
AMD5536_SMB_ADDR, 0);
/* Stall the bus after start */
bus_space_write_1(sc->sc_smb_iot, sc->sc_smb_ioh,
AMD5536_SMB_CTL1, AMD5536_SMB_CTL1_STASTRE);
/* Attach I2C framework */
sc->sc_smb_ic.ic_cookie = sc;
sc->sc_smb_ic.ic_acquire_bus = glxpcib_smb_acquire_bus;
sc->sc_smb_ic.ic_release_bus = glxpcib_smb_release_bus;
sc->sc_smb_ic.ic_send_start = glxpcib_smb_send_start;
sc->sc_smb_ic.ic_send_stop = glxpcib_smb_send_stop;
sc->sc_smb_ic.ic_initiate_xfer = glxpcib_smb_initiate_xfer;
sc->sc_smb_ic.ic_read_byte = glxpcib_smb_read_byte;
sc->sc_smb_ic.ic_write_byte = glxpcib_smb_write_byte;
rw_init(&sc->sc_smb_lck, "iiclk");
bzero(&iba, sizeof(iba));
iba.iba_name = "iic";
iba.iba_tag = &sc->sc_smb_ic;
i2c = 1;
}
#endif /* SMALL_KERNEL */
pcibattach(parent, self, aux);
#ifndef SMALL_KERNEL
#if NGPIO > 0
if (gpio)
config_found(&sc->sc_dev, &gba, gpiobus_print);
#endif
if (i2c)
config_found(&sc->sc_dev, &iba, iicbus_print);
#endif
}
void
smsc_attach(struct device *parent, struct device *self, void *aux)
{
struct smsc_softc *sc = (struct smsc_softc *)self;
struct usb_attach_arg *uaa = aux;
struct usbd_device *dev = uaa->device;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
struct mii_data *mii;
struct ifnet *ifp;
int err, s, i;
uint32_t mac_h, mac_l;
sc->sc_udev = dev;
err = usbd_set_config_no(dev, SMSC_CONFIG_INDEX, 1);
/* Setup the endpoints for the SMSC LAN95xx device(s) */
usb_init_task(&sc->sc_tick_task, smsc_tick_task, sc,
USB_TASK_TYPE_GENERIC);
rw_init(&sc->sc_mii_lock, "smscmii");
usb_init_task(&sc->sc_stop_task, (void (*)(void *))smsc_stop, sc,
USB_TASK_TYPE_GENERIC);
err = usbd_device2interface_handle(dev, SMSC_IFACE_IDX, &sc->sc_iface);
if (err) {
printf("%s: getting interface handle failed\n",
sc->sc_dev.dv_xname);
return;
}
id = usbd_get_interface_descriptor(sc->sc_iface);
if (sc->sc_udev->speed >= USB_SPEED_HIGH)
sc->sc_bufsz = SMSC_MAX_BUFSZ;
else
sc->sc_bufsz = SMSC_MIN_BUFSZ;
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (!ed) {
printf("%s: couldn't get ep %d\n",
sc->sc_dev.dv_xname, i);
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_ed[SMSC_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->sc_ed[SMSC_ENDPT_INTR] = ed->bEndpointAddress;
}
}
s = splnet();
ifp = &sc->sc_ac.ac_if;
ifp->if_softc = sc;
strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = smsc_ioctl;
ifp->if_start = smsc_start;
ifp->if_capabilities = IFCAP_VLAN_MTU;
/* Setup some of the basics */
sc->sc_phyno = 1;
/*
* Attempt to get the mac address, if an EEPROM is not attached this
* will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC
* address based on urandom.
*/
memset(sc->sc_ac.ac_enaddr, 0xff, ETHER_ADDR_LEN);
/* Check if there is already a MAC address in the register */
if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) &&
(smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) {
sc->sc_ac.ac_enaddr[5] = (uint8_t)((mac_h >> 8) & 0xff);
sc->sc_ac.ac_enaddr[4] = (uint8_t)((mac_h) & 0xff);
sc->sc_ac.ac_enaddr[3] = (uint8_t)((mac_l >> 24) & 0xff);
sc->sc_ac.ac_enaddr[2] = (uint8_t)((mac_l >> 16) & 0xff);
sc->sc_ac.ac_enaddr[1] = (uint8_t)((mac_l >> 8) & 0xff);
sc->sc_ac.ac_enaddr[0] = (uint8_t)((mac_l) & 0xff);
}
/* chfs_mountfs - init CHFS */
int
chfs_mountfs(struct vnode *devvp, struct mount *mp)
{
struct lwp *l = curlwp;
kauth_cred_t cred;
devmajor_t flash_major;
dev_t dev;
struct ufsmount* ump = NULL;
struct chfs_mount* chmp;
struct vnode *vp;
int err = 0;
dbg("mountfs()\n");
dev = devvp->v_rdev;
cred = l ? l->l_cred : NOCRED;
/* Flush out any old buffers remaining from a previous use. */
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
err = vinvalbuf(devvp, V_SAVE, cred, l, 0, 0);
VOP_UNLOCK(devvp);
if (err)
return (err);
/* Setup device. */
flash_major = cdevsw_lookup_major(&flash_cdevsw);
if (devvp->v_type != VBLK)
err = ENOTBLK;
else if (bdevsw_lookup(dev) == NULL)
err = ENXIO;
else if (major(dev) != flash_major) {
dbg("major(dev): %d, flash_major: %d\n",
major(dev), flash_major);
err = ENODEV;
}
if (err) {
vrele(devvp);
return (err);
}
/* Connect CHFS to UFS. */
ump = kmem_zalloc(sizeof(struct ufsmount), KM_SLEEP);
ump->um_fstype = UFS1;
ump->um_chfs = kmem_zalloc(sizeof(struct chfs_mount), KM_SLEEP);
mutex_init(&ump->um_lock, MUTEX_DEFAULT, IPL_NONE);
chmp = ump->um_chfs;
/* Initialize erase block handler. */
chmp->chm_ebh = kmem_alloc(sizeof(struct chfs_ebh), KM_SLEEP);
dbg("[]opening flash: %u\n", (unsigned int)devvp->v_rdev);
err = ebh_open(chmp->chm_ebh, devvp->v_rdev);
if (err) {
dbg("error while opening flash\n");
goto fail;
}
//TODO check flash sizes
/* Initialize vnode cache's hashtable and eraseblock array. */
chmp->chm_gbl_version = 0;
chmp->chm_vnocache_hash = chfs_vnocache_hash_init();
chmp->chm_blocks = kmem_zalloc(chmp->chm_ebh->peb_nr *
sizeof(struct chfs_eraseblock), KM_SLEEP);
/* Initialize mutexes. */
mutex_init(&chmp->chm_lock_mountfields, MUTEX_DEFAULT, IPL_NONE);
mutex_init(&chmp->chm_lock_sizes, MUTEX_DEFAULT, IPL_NONE);
mutex_init(&chmp->chm_lock_vnocache, MUTEX_DEFAULT, IPL_NONE);
/* Initialize read/write contants. (from UFS) */
chmp->chm_fs_bmask = -4096;
chmp->chm_fs_bsize = 4096;
chmp->chm_fs_qbmask = 4095;
chmp->chm_fs_bshift = 12;
chmp->chm_fs_fmask = -2048;
chmp->chm_fs_qfmask = 2047;
/* Initialize writebuffer. */
chmp->chm_wbuf_pagesize = chmp->chm_ebh->flash_if->page_size;
dbg("wbuf size: %zu\n", chmp->chm_wbuf_pagesize);
chmp->chm_wbuf = kmem_alloc(chmp->chm_wbuf_pagesize, KM_SLEEP);
rw_init(&chmp->chm_lock_wbuf);
/* Initialize queues. */
TAILQ_INIT(&chmp->chm_free_queue);
TAILQ_INIT(&chmp->chm_clean_queue);
TAILQ_INIT(&chmp->chm_dirty_queue);
TAILQ_INIT(&chmp->chm_very_dirty_queue);
TAILQ_INIT(&chmp->chm_erasable_pending_wbuf_queue);
TAILQ_INIT(&chmp->chm_erase_pending_queue);
/* Initialize flash-specific constants. */
chfs_calc_trigger_levels(chmp);
/* Initialize sizes. */
chmp->chm_nr_free_blocks = 0;
chmp->chm_nr_erasable_blocks = 0;
chmp->chm_max_vno = 2;
chmp->chm_checked_vno = 2;
chmp->chm_unchecked_size = 0;
chmp->chm_used_size = 0;
chmp->chm_dirty_size = 0;
chmp->chm_wasted_size = 0;
chmp->chm_free_size = chmp->chm_ebh->eb_size * chmp->chm_ebh->peb_nr;
/* Build filesystem. */
err = chfs_build_filesystem(chmp);
if (err) {
/* Armageddon and return. */
chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash);
ebh_close(chmp->chm_ebh);
err = EIO;
goto fail;
}
/* Initialize UFS. */
mp->mnt_data = ump;
mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev;
mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_CHFS);
mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0];
mp->mnt_stat.f_namemax = MAXNAMLEN;
mp->mnt_flag |= MNT_LOCAL;
mp->mnt_fs_bshift = PAGE_SHIFT;
mp->mnt_dev_bshift = DEV_BSHIFT;
mp->mnt_iflag |= IMNT_MPSAFE;
ump->um_flags = 0;
ump->um_mountp = mp;
ump->um_dev = dev;
ump->um_devvp = devvp;
ump->um_maxfilesize = 1048512 * 1024;
/* Allocate the root vnode. */
err = VFS_VGET(mp, CHFS_ROOTINO, &vp);
if (err) {
dbg("error: %d while allocating root node\n", err);
return err;
}
vput(vp);
/* Start GC. */
chfs_gc_thread_start(chmp);
mutex_enter(&chmp->chm_lock_mountfields);
chfs_gc_trigger(chmp);
mutex_exit(&chmp->chm_lock_mountfields);
spec_node_setmountedfs(devvp, mp);
return 0;
fail:
kmem_free(chmp->chm_ebh, sizeof(struct chfs_ebh));
kmem_free(chmp, sizeof(struct chfs_mount));
kmem_free(ump, sizeof(struct ufsmount));
return err;
}
void
dmu_objset_init(void)
{
rw_init(&os_lock, NULL, RW_DEFAULT, NULL);
}
void list_init(struct linked_list_head *list) {
list->head=NULL;
list->sync = rw_init();
}
