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path: root/drivers/target/target_core_alua.c
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Diffstat (limited to 'drivers/target/target_core_alua.c')
-rw-r--r--drivers/target/target_core_alua.c150
1 files changed, 76 insertions, 74 deletions
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 47244102281e..fdcee326bfbc 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -44,7 +44,7 @@
static sense_reason_t core_alua_check_transition(int state, int *primary);
static int core_alua_set_tg_pt_secondary_state(
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
- struct se_port *port, int explict, int offline);
+ struct se_port *port, int explicit, int offline);
static u16 alua_lu_gps_counter;
static u32 alua_lu_gps_count;
@@ -117,12 +117,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
/*
* Set supported ASYMMETRIC ACCESS State bits
*/
- buf[off] = 0x80; /* T_SUP */
- buf[off] |= 0x40; /* O_SUP */
- buf[off] |= 0x8; /* U_SUP */
- buf[off] |= 0x4; /* S_SUP */
- buf[off] |= 0x2; /* AN_SUP */
- buf[off++] |= 0x1; /* AO_SUP */
+ buf[off++] |= tg_pt_gp->tg_pt_gp_alua_supported_states;
/*
* TARGET PORT GROUP
*/
@@ -175,7 +170,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
if (ext_hdr != 0) {
buf[4] = 0x10;
/*
- * Set the implict transition time (in seconds) for the application
+ * Set the implicit transition time (in seconds) for the application
* client to use as a base for it's transition timeout value.
*
* Use the current tg_pt_gp_mem -> tg_pt_gp membership from the LUN
@@ -188,7 +183,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
if (tg_pt_gp)
- buf[5] = tg_pt_gp->tg_pt_gp_implict_trans_secs;
+ buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
}
}
@@ -199,7 +194,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
}
/*
- * SET_TARGET_PORT_GROUPS for explict ALUA operation.
+ * SET_TARGET_PORT_GROUPS for explicit ALUA operation.
*
* See spc4r17 section 6.35
*/
@@ -232,7 +227,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
/*
- * Determine if explict ALUA via SET_TARGET_PORT_GROUPS is allowed
+ * Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed
* for the local tg_pt_gp.
*/
l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
@@ -251,9 +246,9 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
}
spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
- if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA)) {
+ if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) {
pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
- " while TPGS_EXPLICT_ALUA is disabled\n");
+ " while TPGS_EXPLICIT_ALUA is disabled\n");
rc = TCM_UNSUPPORTED_SCSI_OPCODE;
goto out;
}
@@ -330,7 +325,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
} else {
/*
- * Extact the RELATIVE TARGET PORT IDENTIFIER to identify
+ * Extract the RELATIVE TARGET PORT IDENTIFIER to identify
* the Target Port in question for the the incoming
* SET_TARGET_PORT_GROUPS op.
*/
@@ -487,7 +482,7 @@ static inline int core_alua_state_transition(
u8 *alua_ascq)
{
/*
- * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITIO as defined by
+ * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITION as defined by
* spc4r17 section 5.9.2.5
*/
switch (cdb[0]) {
@@ -515,9 +510,9 @@ static inline int core_alua_state_transition(
}
/*
- * return 1: Is used to signal LUN not accecsable, and check condition/not ready
+ * return 1: Is used to signal LUN not accessible, and check condition/not ready
* return 0: Used to signal success
- * reutrn -1: Used to signal failure, and invalid cdb field
+ * return -1: Used to signal failure, and invalid cdb field
*/
sense_reason_t
target_alua_state_check(struct se_cmd *cmd)
@@ -566,12 +561,12 @@ target_alua_state_check(struct se_cmd *cmd)
nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
/*
- * Process ALUA_ACCESS_STATE_ACTIVE_OPTMIZED in a separate conditional
+ * Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional
* statement so the compiler knows explicitly to check this case first.
* For the Optimized ALUA access state case, we want to process the
* incoming fabric cmd ASAP..
*/
- if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTMIZED)
+ if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED)
return 0;
switch (out_alua_state) {
@@ -620,13 +615,13 @@ out:
}
/*
- * Check implict and explict ALUA state change request.
+ * Check implicit and explicit ALUA state change request.
*/
static sense_reason_t
core_alua_check_transition(int state, int *primary)
{
switch (state) {
- case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED:
+ case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED:
case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
case ALUA_ACCESS_STATE_STANDBY:
case ALUA_ACCESS_STATE_UNAVAILABLE:
@@ -654,7 +649,7 @@ core_alua_check_transition(int state, int *primary)
static char *core_alua_dump_state(int state)
{
switch (state) {
- case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED:
+ case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED:
return "Active/Optimized";
case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
return "Active/NonOptimized";
@@ -676,10 +671,10 @@ char *core_alua_dump_status(int status)
switch (status) {
case ALUA_STATUS_NONE:
return "None";
- case ALUA_STATUS_ALTERED_BY_EXPLICT_STPG:
- return "Altered by Explict STPG";
- case ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA:
- return "Altered by Implict ALUA";
+ case ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG:
+ return "Altered by Explicit STPG";
+ case ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA:
+ return "Altered by Implicit ALUA";
default:
return "Unknown";
}
@@ -770,7 +765,7 @@ static int core_alua_do_transition_tg_pt(
struct se_node_acl *nacl,
unsigned char *md_buf,
int new_state,
- int explict)
+ int explicit)
{
struct se_dev_entry *se_deve;
struct se_lun_acl *lacl;
@@ -784,9 +779,9 @@ static int core_alua_do_transition_tg_pt(
old_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
ALUA_ACCESS_STATE_TRANSITION);
- tg_pt_gp->tg_pt_gp_alua_access_status = (explict) ?
- ALUA_STATUS_ALTERED_BY_EXPLICT_STPG :
- ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA;
+ tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ?
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
+ ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
/*
* Check for the optional ALUA primary state transition delay
*/
@@ -802,7 +797,7 @@ static int core_alua_do_transition_tg_pt(
* change, a device server shall establish a unit attention
* condition for the initiator port associated with every I_T
* nexus with the additional sense code set to ASYMMETRIC
- * ACCESS STATE CHAGED.
+ * ACCESS STATE CHANGED.
*
* After an explicit target port asymmetric access state
* change, a device server shall establish a unit attention
@@ -821,12 +816,12 @@ static int core_alua_do_transition_tg_pt(
lacl = se_deve->se_lun_acl;
/*
* se_deve->se_lun_acl pointer may be NULL for a
- * entry created without explict Node+MappedLUN ACLs
+ * entry created without explicit Node+MappedLUN ACLs
*/
if (!lacl)
continue;
- if (explict &&
+ if (explicit &&
(nacl != NULL) && (nacl == lacl->se_lun_nacl) &&
(l_port != NULL) && (l_port == port))
continue;
@@ -866,8 +861,8 @@ static int core_alua_do_transition_tg_pt(
atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, new_state);
pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
- " from primary access state %s to %s\n", (explict) ? "explict" :
- "implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
+ " from primary access state %s to %s\n", (explicit) ? "explicit" :
+ "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id, core_alua_dump_state(old_state),
core_alua_dump_state(new_state));
@@ -880,7 +875,7 @@ int core_alua_do_port_transition(
struct se_port *l_port,
struct se_node_acl *l_nacl,
int new_state,
- int explict)
+ int explicit)
{
struct se_device *dev;
struct se_port *port;
@@ -917,7 +912,7 @@ int core_alua_do_port_transition(
* success.
*/
core_alua_do_transition_tg_pt(l_tg_pt_gp, l_port, l_nacl,
- md_buf, new_state, explict);
+ md_buf, new_state, explicit);
atomic_dec(&lu_gp->lu_gp_ref_cnt);
smp_mb__after_atomic_dec();
kfree(md_buf);
@@ -946,7 +941,7 @@ int core_alua_do_port_transition(
continue;
/*
* If the target behavior port asymmetric access state
- * is changed for any target port group accessiable via
+ * is changed for any target port group accessible via
* a logical unit within a LU group, the target port
* behavior group asymmetric access states for the same
* target port group accessible via other logical units
@@ -970,7 +965,7 @@ int core_alua_do_port_transition(
* success.
*/
core_alua_do_transition_tg_pt(tg_pt_gp, port,
- nacl, md_buf, new_state, explict);
+ nacl, md_buf, new_state, explicit);
spin_lock(&dev->t10_alua.tg_pt_gps_lock);
atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt);
@@ -987,7 +982,7 @@ int core_alua_do_port_transition(
pr_debug("Successfully processed LU Group: %s all ALUA TG PT"
" Group IDs: %hu %s transition to primary state: %s\n",
config_item_name(&lu_gp->lu_gp_group.cg_item),
- l_tg_pt_gp->tg_pt_gp_id, (explict) ? "explict" : "implict",
+ l_tg_pt_gp->tg_pt_gp_id, (explicit) ? "explicit" : "implicit",
core_alua_dump_state(new_state));
atomic_dec(&lu_gp->lu_gp_ref_cnt);
@@ -1034,7 +1029,7 @@ static int core_alua_update_tpg_secondary_metadata(
static int core_alua_set_tg_pt_secondary_state(
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
struct se_port *port,
- int explict,
+ int explicit,
int offline)
{
struct t10_alua_tg_pt_gp *tg_pt_gp;
@@ -1061,13 +1056,13 @@ static int core_alua_set_tg_pt_secondary_state(
atomic_set(&port->sep_tg_pt_secondary_offline, 0);
md_buf_len = tg_pt_gp->tg_pt_gp_md_buf_len;
- port->sep_tg_pt_secondary_stat = (explict) ?
- ALUA_STATUS_ALTERED_BY_EXPLICT_STPG :
- ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA;
+ port->sep_tg_pt_secondary_stat = (explicit) ?
+ ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
+ ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
- " to secondary access state: %s\n", (explict) ? "explict" :
- "implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
+ " to secondary access state: %s\n", (explicit) ? "explicit" :
+ "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE");
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
@@ -1232,7 +1227,7 @@ void core_alua_free_lu_gp(struct t10_alua_lu_gp *lu_gp)
* struct se_device is released via core_alua_free_lu_gp_mem().
*
* If the passed lu_gp does NOT match the default_lu_gp, assume
- * we want to re-assocate a given lu_gp_mem with default_lu_gp.
+ * we want to re-associate a given lu_gp_mem with default_lu_gp.
*/
spin_lock(&lu_gp_mem->lu_gp_mem_lock);
if (lu_gp != default_lu_gp)
@@ -1354,18 +1349,25 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev,
tg_pt_gp->tg_pt_gp_dev = dev;
tg_pt_gp->tg_pt_gp_md_buf_len = ALUA_MD_BUF_LEN;
atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
- ALUA_ACCESS_STATE_ACTIVE_OPTMIZED);
+ ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED);
/*
- * Enable both explict and implict ALUA support by default
+ * Enable both explicit and implicit ALUA support by default
*/
tg_pt_gp->tg_pt_gp_alua_access_type =
- TPGS_EXPLICT_ALUA | TPGS_IMPLICT_ALUA;
+ TPGS_EXPLICIT_ALUA | TPGS_IMPLICIT_ALUA;
/*
* Set the default Active/NonOptimized Delay in milliseconds
*/
tg_pt_gp->tg_pt_gp_nonop_delay_msecs = ALUA_DEFAULT_NONOP_DELAY_MSECS;
tg_pt_gp->tg_pt_gp_trans_delay_msecs = ALUA_DEFAULT_TRANS_DELAY_MSECS;
- tg_pt_gp->tg_pt_gp_implict_trans_secs = ALUA_DEFAULT_IMPLICT_TRANS_SECS;
+ tg_pt_gp->tg_pt_gp_implicit_trans_secs = ALUA_DEFAULT_IMPLICIT_TRANS_SECS;
+
+ /*
+ * Enable all supported states
+ */
+ tg_pt_gp->tg_pt_gp_alua_supported_states =
+ ALUA_T_SUP | ALUA_O_SUP |
+ ALUA_U_SUP | ALUA_S_SUP | ALUA_AN_SUP | ALUA_AO_SUP;
if (def_group) {
spin_lock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1465,7 +1467,7 @@ void core_alua_free_tg_pt_gp(
* been called from target_core_alua_drop_tg_pt_gp().
*
* Here we remove *tg_pt_gp from the global list so that
- * no assications *OR* explict ALUA via SET_TARGET_PORT_GROUPS
+ * no associations *OR* explicit ALUA via SET_TARGET_PORT_GROUPS
* can be made while we are releasing struct t10_alua_tg_pt_gp.
*/
spin_lock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1501,7 +1503,7 @@ void core_alua_free_tg_pt_gp(
* core_alua_free_tg_pt_gp_mem().
*
* If the passed tg_pt_gp does NOT match the default_tg_pt_gp,
- * assume we want to re-assocate a given tg_pt_gp_mem with
+ * assume we want to re-associate a given tg_pt_gp_mem with
* default_tg_pt_gp.
*/
spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
@@ -1740,13 +1742,13 @@ ssize_t core_alua_show_access_type(
struct t10_alua_tg_pt_gp *tg_pt_gp,
char *page)
{
- if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA) &&
- (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA))
- return sprintf(page, "Implict and Explict\n");
- else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)
- return sprintf(page, "Implict\n");
- else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA)
- return sprintf(page, "Explict\n");
+ if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA) &&
+ (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA))
+ return sprintf(page, "Implicit and Explicit\n");
+ else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)
+ return sprintf(page, "Implicit\n");
+ else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)
+ return sprintf(page, "Explicit\n");
else
return sprintf(page, "None\n");
}
@@ -1771,11 +1773,11 @@ ssize_t core_alua_store_access_type(
}
if (tmp == 3)
tg_pt_gp->tg_pt_gp_alua_access_type =
- TPGS_IMPLICT_ALUA | TPGS_EXPLICT_ALUA;
+ TPGS_IMPLICIT_ALUA | TPGS_EXPLICIT_ALUA;
else if (tmp == 2)
- tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICT_ALUA;
+ tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICIT_ALUA;
else if (tmp == 1)
- tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICT_ALUA;
+ tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICIT_ALUA;
else
tg_pt_gp->tg_pt_gp_alua_access_type = 0;
@@ -1844,14 +1846,14 @@ ssize_t core_alua_store_trans_delay_msecs(
return count;
}
-ssize_t core_alua_show_implict_trans_secs(
+ssize_t core_alua_show_implicit_trans_secs(
struct t10_alua_tg_pt_gp *tg_pt_gp,
char *page)
{
- return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implict_trans_secs);
+ return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implicit_trans_secs);
}
-ssize_t core_alua_store_implict_trans_secs(
+ssize_t core_alua_store_implicit_trans_secs(
struct t10_alua_tg_pt_gp *tg_pt_gp,
const char *page,
size_t count)
@@ -1861,16 +1863,16 @@ ssize_t core_alua_store_implict_trans_secs(
ret = kstrtoul(page, 0, &tmp);
if (ret < 0) {
- pr_err("Unable to extract implict_trans_secs\n");
+ pr_err("Unable to extract implicit_trans_secs\n");
return ret;
}
- if (tmp > ALUA_MAX_IMPLICT_TRANS_SECS) {
- pr_err("Passed implict_trans_secs: %lu, exceeds"
- " ALUA_MAX_IMPLICT_TRANS_SECS: %d\n", tmp,
- ALUA_MAX_IMPLICT_TRANS_SECS);
+ if (tmp > ALUA_MAX_IMPLICIT_TRANS_SECS) {
+ pr_err("Passed implicit_trans_secs: %lu, exceeds"
+ " ALUA_MAX_IMPLICIT_TRANS_SECS: %d\n", tmp,
+ ALUA_MAX_IMPLICIT_TRANS_SECS);
return -EINVAL;
}
- tg_pt_gp->tg_pt_gp_implict_trans_secs = (int)tmp;
+ tg_pt_gp->tg_pt_gp_implicit_trans_secs = (int)tmp;
return count;
}
@@ -1970,8 +1972,8 @@ ssize_t core_alua_store_secondary_status(
return ret;
}
if ((tmp != ALUA_STATUS_NONE) &&
- (tmp != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) &&
- (tmp != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) {
+ (tmp != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
+ (tmp != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) {
pr_err("Illegal value for alua_tg_pt_status: %lu\n",
tmp);
return -EINVAL;