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path: root/drivers/misc/sgi-xp/xpc_uv.c
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Diffstat (limited to 'drivers/misc/sgi-xp/xpc_uv.c')
-rw-r--r--drivers/misc/sgi-xp/xpc_uv.c257
1 files changed, 123 insertions, 134 deletions
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index f7fff4727edb..9172fcdee4e2 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -46,8 +46,7 @@ struct uv_IO_APIC_route_entry {
};
#endif
-static atomic64_t xpc_heartbeat_uv;
-static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
+static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
#define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
#define XPC_ACTIVATE_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \
@@ -63,7 +62,7 @@ static struct xpc_gru_mq_uv *xpc_activate_mq_uv;
static struct xpc_gru_mq_uv *xpc_notify_mq_uv;
static int
-xpc_setup_partitions_sn_uv(void)
+xpc_setup_partitions_uv(void)
{
short partid;
struct xpc_partition_uv *part_uv;
@@ -79,7 +78,7 @@ xpc_setup_partitions_sn_uv(void)
}
static void
-xpc_teardown_partitions_sn_uv(void)
+xpc_teardown_partitions_uv(void)
{
short partid;
struct xpc_partition_uv *part_uv;
@@ -423,41 +422,6 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
/* syncing of remote_act_state was just done above */
break;
- case XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
- break;
- }
- case XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
-
- spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
- part_uv->flags |= XPC_P_HEARTBEAT_OFFLINE_UV;
- spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
- break;
- }
- case XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
-
- spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
- part_uv->flags &= ~XPC_P_HEARTBEAT_OFFLINE_UV;
- spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
- break;
- }
case XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV: {
struct xpc_activate_mq_msg_activate_req_uv *msg;
@@ -475,6 +439,7 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
part_uv->act_state_req = XPC_P_ASR_ACTIVATE_UV;
part->remote_rp_pa = msg->rp_gpa; /* !!! _pa is _gpa */
part->remote_rp_ts_jiffies = msg_hdr->rp_ts_jiffies;
+ part_uv->heartbeat_gpa = msg->heartbeat_gpa;
if (msg->activate_gru_mq_desc_gpa !=
part_uv->activate_gru_mq_desc_gpa) {
@@ -569,6 +534,17 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
xpc_wakeup_channel_mgr(part);
break;
}
+ case XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV: {
+ struct xpc_activate_mq_msg_chctl_opencomplete_uv *msg;
+
+ msg = container_of(msg_hdr, struct
+ xpc_activate_mq_msg_chctl_opencomplete_uv, hdr);
+ spin_lock_irqsave(&part->chctl_lock, irq_flags);
+ part->chctl.flags[msg->ch_number] |= XPC_CHCTL_OPENCOMPLETE;
+ spin_unlock_irqrestore(&part->chctl_lock, irq_flags);
+
+ xpc_wakeup_channel_mgr(part);
+ }
case XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV:
spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
part_uv->flags |= XPC_P_ENGAGED_UV;
@@ -759,7 +735,7 @@ xpc_send_local_activate_IRQ_uv(struct xpc_partition *part, int act_state_req)
/*
* !!! Make our side think that the remote partition sent an activate
- * !!! message our way by doing what the activate IRQ handler would
+ * !!! mq message our way by doing what the activate IRQ handler would
* !!! do had one really been sent.
*/
@@ -806,90 +782,82 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
}
static int
-xpc_setup_rsvd_page_sn_uv(struct xpc_rsvd_page *rp)
+xpc_setup_rsvd_page_uv(struct xpc_rsvd_page *rp)
{
- rp->sn.activate_gru_mq_desc_gpa =
+ xpc_heartbeat_uv =
+ &xpc_partitions[sn_partition_id].sn.uv.cached_heartbeat;
+ rp->sn.uv.heartbeat_gpa = uv_gpa(xpc_heartbeat_uv);
+ rp->sn.uv.activate_gru_mq_desc_gpa =
uv_gpa(xpc_activate_mq_uv->gru_mq_desc);
return 0;
}
static void
-xpc_send_heartbeat_uv(int msg_type)
+xpc_allow_hb_uv(short partid)
{
- short partid;
- struct xpc_partition *part;
- struct xpc_activate_mq_msg_heartbeat_req_uv msg;
-
- /*
- * !!! On uv we're broadcasting a heartbeat message every 5 seconds.
- * !!! Whereas on sn2 we're bte_copy'ng the heartbeat info every 20
- * !!! seconds. This is an increase in numalink traffic.
- * ??? Is this good?
- */
-
- msg.heartbeat = atomic64_inc_return(&xpc_heartbeat_uv);
-
- partid = find_first_bit(xpc_heartbeating_to_mask_uv,
- XP_MAX_NPARTITIONS_UV);
-
- while (partid < XP_MAX_NPARTITIONS_UV) {
- part = &xpc_partitions[partid];
+}
- xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
- msg_type);
+static void
+xpc_disallow_hb_uv(short partid)
+{
+}
- partid = find_next_bit(xpc_heartbeating_to_mask_uv,
- XP_MAX_NPARTITIONS_UV, partid + 1);
- }
+static void
+xpc_disallow_all_hbs_uv(void)
+{
}
static void
xpc_increment_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV);
+ xpc_heartbeat_uv->value++;
}
static void
xpc_offline_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+ xpc_increment_heartbeat_uv();
+ xpc_heartbeat_uv->offline = 1;
}
static void
xpc_online_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV);
+ xpc_increment_heartbeat_uv();
+ xpc_heartbeat_uv->offline = 0;
}
static void
xpc_heartbeat_init_uv(void)
{
- atomic64_set(&xpc_heartbeat_uv, 0);
- bitmap_zero(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
- xpc_heartbeating_to_mask = &xpc_heartbeating_to_mask_uv[0];
+ xpc_heartbeat_uv->value = 1;
+ xpc_heartbeat_uv->offline = 0;
}
static void
xpc_heartbeat_exit_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+ xpc_offline_heartbeat_uv();
}
static enum xp_retval
xpc_get_remote_heartbeat_uv(struct xpc_partition *part)
{
struct xpc_partition_uv *part_uv = &part->sn.uv;
- enum xp_retval ret = xpNoHeartbeat;
+ enum xp_retval ret;
- if (part_uv->remote_act_state != XPC_P_AS_INACTIVE &&
- part_uv->remote_act_state != XPC_P_AS_DEACTIVATING) {
+ ret = xp_remote_memcpy(uv_gpa(&part_uv->cached_heartbeat),
+ part_uv->heartbeat_gpa,
+ sizeof(struct xpc_heartbeat_uv));
+ if (ret != xpSuccess)
+ return ret;
- if (part_uv->heartbeat != part->last_heartbeat ||
- (part_uv->flags & XPC_P_HEARTBEAT_OFFLINE_UV)) {
+ if (part_uv->cached_heartbeat.value == part->last_heartbeat &&
+ !part_uv->cached_heartbeat.offline) {
- part->last_heartbeat = part_uv->heartbeat;
- ret = xpSuccess;
- }
+ ret = xpNoHeartbeat;
+ } else {
+ part->last_heartbeat = part_uv->cached_heartbeat.value;
}
return ret;
}
@@ -904,8 +872,9 @@ xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
part->remote_rp_pa = remote_rp_gpa; /* !!! _pa here is really _gpa */
part->remote_rp_ts_jiffies = remote_rp->ts_jiffies;
+ part->sn.uv.heartbeat_gpa = remote_rp->sn.uv.heartbeat_gpa;
part->sn.uv.activate_gru_mq_desc_gpa =
- remote_rp->sn.activate_gru_mq_desc_gpa;
+ remote_rp->sn.uv.activate_gru_mq_desc_gpa;
/*
* ??? Is it a good idea to make this conditional on what is
@@ -913,8 +882,9 @@ xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
*/
if (part->sn.uv.remote_act_state == XPC_P_AS_INACTIVE) {
msg.rp_gpa = uv_gpa(xpc_rsvd_page);
+ msg.heartbeat_gpa = xpc_rsvd_page->sn.uv.heartbeat_gpa;
msg.activate_gru_mq_desc_gpa =
- xpc_rsvd_page->sn.activate_gru_mq_desc_gpa;
+ xpc_rsvd_page->sn.uv.activate_gru_mq_desc_gpa;
xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV);
}
@@ -1010,7 +980,7 @@ xpc_n_of_fifo_entries_uv(struct xpc_fifo_head_uv *head)
* Setup the channel structures that are uv specific.
*/
static enum xp_retval
-xpc_setup_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_setup_ch_structures_uv(struct xpc_partition *part)
{
struct xpc_channel_uv *ch_uv;
int ch_number;
@@ -1029,7 +999,7 @@ xpc_setup_ch_structures_sn_uv(struct xpc_partition *part)
* Teardown the channel structures that are uv specific.
*/
static void
-xpc_teardown_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_teardown_ch_structures_uv(struct xpc_partition *part)
{
/* nothing needs to be done */
return;
@@ -1243,6 +1213,16 @@ xpc_send_chctl_openreply_uv(struct xpc_channel *ch, unsigned long *irq_flags)
}
static void
+xpc_send_chctl_opencomplete_uv(struct xpc_channel *ch, unsigned long *irq_flags)
+{
+ struct xpc_activate_mq_msg_chctl_opencomplete_uv msg;
+
+ msg.ch_number = ch->number;
+ xpc_send_activate_IRQ_ch_uv(ch, irq_flags, &msg, sizeof(msg),
+ XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV);
+}
+
+static void
xpc_send_chctl_local_msgrequest_uv(struct xpc_partition *part, int ch_number)
{
unsigned long irq_flags;
@@ -1669,58 +1649,67 @@ xpc_received_payload_uv(struct xpc_channel *ch, void *payload)
msg->hdr.msg_slot_number += ch->remote_nentries;
}
+static struct xpc_arch_operations xpc_arch_ops_uv = {
+ .setup_partitions = xpc_setup_partitions_uv,
+ .teardown_partitions = xpc_teardown_partitions_uv,
+ .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv,
+ .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv,
+ .setup_rsvd_page = xpc_setup_rsvd_page_uv,
+
+ .allow_hb = xpc_allow_hb_uv,
+ .disallow_hb = xpc_disallow_hb_uv,
+ .disallow_all_hbs = xpc_disallow_all_hbs_uv,
+ .increment_heartbeat = xpc_increment_heartbeat_uv,
+ .offline_heartbeat = xpc_offline_heartbeat_uv,
+ .online_heartbeat = xpc_online_heartbeat_uv,
+ .heartbeat_init = xpc_heartbeat_init_uv,
+ .heartbeat_exit = xpc_heartbeat_exit_uv,
+ .get_remote_heartbeat = xpc_get_remote_heartbeat_uv,
+
+ .request_partition_activation =
+ xpc_request_partition_activation_uv,
+ .request_partition_reactivation =
+ xpc_request_partition_reactivation_uv,
+ .request_partition_deactivation =
+ xpc_request_partition_deactivation_uv,
+ .cancel_partition_deactivation_request =
+ xpc_cancel_partition_deactivation_request_uv,
+
+ .setup_ch_structures = xpc_setup_ch_structures_uv,
+ .teardown_ch_structures = xpc_teardown_ch_structures_uv,
+
+ .make_first_contact = xpc_make_first_contact_uv,
+
+ .get_chctl_all_flags = xpc_get_chctl_all_flags_uv,
+ .send_chctl_closerequest = xpc_send_chctl_closerequest_uv,
+ .send_chctl_closereply = xpc_send_chctl_closereply_uv,
+ .send_chctl_openrequest = xpc_send_chctl_openrequest_uv,
+ .send_chctl_openreply = xpc_send_chctl_openreply_uv,
+ .send_chctl_opencomplete = xpc_send_chctl_opencomplete_uv,
+ .process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv,
+
+ .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv,
+
+ .setup_msg_structures = xpc_setup_msg_structures_uv,
+ .teardown_msg_structures = xpc_teardown_msg_structures_uv,
+
+ .indicate_partition_engaged = xpc_indicate_partition_engaged_uv,
+ .indicate_partition_disengaged = xpc_indicate_partition_disengaged_uv,
+ .assume_partition_disengaged = xpc_assume_partition_disengaged_uv,
+ .partition_engaged = xpc_partition_engaged_uv,
+ .any_partition_engaged = xpc_any_partition_engaged_uv,
+
+ .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv,
+ .send_payload = xpc_send_payload_uv,
+ .get_deliverable_payload = xpc_get_deliverable_payload_uv,
+ .received_payload = xpc_received_payload_uv,
+ .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv,
+};
+
int
xpc_init_uv(void)
{
- xpc_setup_partitions_sn = xpc_setup_partitions_sn_uv;
- xpc_teardown_partitions_sn = xpc_teardown_partitions_sn_uv;
- xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv;
- xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv;
- xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_uv;
- xpc_increment_heartbeat = xpc_increment_heartbeat_uv;
- xpc_offline_heartbeat = xpc_offline_heartbeat_uv;
- xpc_online_heartbeat = xpc_online_heartbeat_uv;
- xpc_heartbeat_init = xpc_heartbeat_init_uv;
- xpc_heartbeat_exit = xpc_heartbeat_exit_uv;
- xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_uv;
-
- xpc_request_partition_activation = xpc_request_partition_activation_uv;
- xpc_request_partition_reactivation =
- xpc_request_partition_reactivation_uv;
- xpc_request_partition_deactivation =
- xpc_request_partition_deactivation_uv;
- xpc_cancel_partition_deactivation_request =
- xpc_cancel_partition_deactivation_request_uv;
-
- xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_uv;
- xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_uv;
-
- xpc_make_first_contact = xpc_make_first_contact_uv;
-
- xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_uv;
- xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_uv;
- xpc_send_chctl_closereply = xpc_send_chctl_closereply_uv;
- xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_uv;
- xpc_send_chctl_openreply = xpc_send_chctl_openreply_uv;
-
- xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv;
-
- xpc_setup_msg_structures = xpc_setup_msg_structures_uv;
- xpc_teardown_msg_structures = xpc_teardown_msg_structures_uv;
-
- xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_uv;
- xpc_indicate_partition_disengaged =
- xpc_indicate_partition_disengaged_uv;
- xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_uv;
- xpc_partition_engaged = xpc_partition_engaged_uv;
- xpc_any_partition_engaged = xpc_any_partition_engaged_uv;
-
- xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv;
- xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv;
- xpc_send_payload = xpc_send_payload_uv;
- xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv;
- xpc_get_deliverable_payload = xpc_get_deliverable_payload_uv;
- xpc_received_payload = xpc_received_payload_uv;
+ xpc_arch_ops = xpc_arch_ops_uv;
if (sizeof(struct xpc_notify_mq_msghdr_uv) > XPC_MSG_HDR_MAX_SIZE) {
dev_err(xpc_part, "xpc_notify_mq_msghdr_uv is larger than %d\n",