diff options
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_sn2.c')
| -rw-r--r-- | drivers/misc/sgi-xp/xpc_sn2.c | 180 |
1 files changed, 115 insertions, 65 deletions
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c index 2e975762c32b..915a3b495da5 100644 --- a/drivers/misc/sgi-xp/xpc_sn2.c +++ b/drivers/misc/sgi-xp/xpc_sn2.c @@ -3,7 +3,7 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved. */ /* @@ -60,12 +60,18 @@ static struct xpc_vars_sn2 *xpc_vars_sn2; static struct xpc_vars_part_sn2 *xpc_vars_part_sn2; static int -xpc_setup_partitions_sn_sn2(void) +xpc_setup_partitions_sn2(void) { /* nothing needs to be done */ return 0; } +static void +xpc_teardown_partitions_sn2(void) +{ + /* nothing needs to be done */ +} + /* SH_IPI_ACCESS shub register value on startup */ static u64 xpc_sh1_IPI_access_sn2; static u64 xpc_sh2_IPI_access0_sn2; @@ -425,6 +431,13 @@ xpc_send_chctl_openreply_sn2(struct xpc_channel *ch, unsigned long *irq_flags) } static void +xpc_send_chctl_opencomplete_sn2(struct xpc_channel *ch, + unsigned long *irq_flags) +{ + XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_OPENCOMPLETE, irq_flags); +} + +static void xpc_send_chctl_msgrequest_sn2(struct xpc_channel *ch) { XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_MSGREQUEST, NULL); @@ -436,11 +449,12 @@ xpc_send_chctl_local_msgrequest_sn2(struct xpc_channel *ch) XPC_SEND_LOCAL_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_MSGREQUEST); } -static void +static enum xp_retval xpc_save_remote_msgqueue_pa_sn2(struct xpc_channel *ch, unsigned long msgqueue_pa) { ch->sn.sn2.remote_msgqueue_pa = msgqueue_pa; + return xpSuccess; } /* @@ -614,7 +628,7 @@ xpc_get_partition_rsvd_page_pa_sn2(void *buf, u64 *cookie, unsigned long *rp_pa, static int -xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp) +xpc_setup_rsvd_page_sn2(struct xpc_rsvd_page *rp) { struct amo *amos_page; int i; @@ -622,7 +636,7 @@ xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp) xpc_vars_sn2 = XPC_RP_VARS(rp); - rp->sn.vars_pa = xp_pa(xpc_vars_sn2); + rp->sn.sn2.vars_pa = xp_pa(xpc_vars_sn2); /* vars_part array follows immediately after vars */ xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) + @@ -686,6 +700,33 @@ xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp) return 0; } +static int +xpc_hb_allowed_sn2(short partid, void *heartbeating_to_mask) +{ + return test_bit(partid, heartbeating_to_mask); +} + +static void +xpc_allow_hb_sn2(short partid) +{ + DBUG_ON(xpc_vars_sn2 == NULL); + set_bit(partid, xpc_vars_sn2->heartbeating_to_mask); +} + +static void +xpc_disallow_hb_sn2(short partid) +{ + DBUG_ON(xpc_vars_sn2 == NULL); + clear_bit(partid, xpc_vars_sn2->heartbeating_to_mask); +} + +static void +xpc_disallow_all_hbs_sn2(void) +{ + DBUG_ON(xpc_vars_sn2 == NULL); + bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, xp_max_npartitions); +} + static void xpc_increment_heartbeat_sn2(void) { @@ -712,7 +753,6 @@ xpc_heartbeat_init_sn2(void) DBUG_ON(xpc_vars_sn2 == NULL); bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2); - xpc_heartbeating_to_mask = &xpc_vars_sn2->heartbeating_to_mask[0]; xpc_online_heartbeat_sn2(); } @@ -744,9 +784,9 @@ xpc_get_remote_heartbeat_sn2(struct xpc_partition *part) remote_vars->heartbeating_to_mask[0]); if ((remote_vars->heartbeat == part->last_heartbeat && - remote_vars->heartbeat_offline == 0) || - !xpc_hb_allowed(sn_partition_id, - &remote_vars->heartbeating_to_mask)) { + !remote_vars->heartbeat_offline) || + !xpc_hb_allowed_sn2(sn_partition_id, + remote_vars->heartbeating_to_mask)) { ret = xpNoHeartbeat; } else { part->last_heartbeat = remote_vars->heartbeat; @@ -965,7 +1005,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid) return; } - remote_vars_pa = remote_rp->sn.vars_pa; + remote_vars_pa = remote_rp->sn.sn2.vars_pa; remote_rp_version = remote_rp->version; remote_rp_ts_jiffies = remote_rp->ts_jiffies; @@ -1122,7 +1162,7 @@ xpc_process_activate_IRQ_rcvd_sn2(void) * Setup the channel structures that are sn2 specific. */ static enum xp_retval -xpc_setup_ch_structures_sn_sn2(struct xpc_partition *part) +xpc_setup_ch_structures_sn2(struct xpc_partition *part) { struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2; struct xpc_channel_sn2 *ch_sn2; @@ -1244,7 +1284,7 @@ out_1: * Teardown the channel structures that are sn2 specific. */ static void -xpc_teardown_ch_structures_sn_sn2(struct xpc_partition *part) +xpc_teardown_ch_structures_sn2(struct xpc_partition *part) { struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2; short partid = XPC_PARTID(part); @@ -1737,20 +1777,20 @@ xpc_clear_remote_msgqueue_flags_sn2(struct xpc_channel *ch) { struct xpc_channel_sn2 *ch_sn2 = &ch->sn.sn2; struct xpc_msg_sn2 *msg; - s64 put; + s64 put, remote_nentries = ch->remote_nentries; /* flags are zeroed when the buffer is allocated */ - if (ch_sn2->remote_GP.put < ch->remote_nentries) + if (ch_sn2->remote_GP.put < remote_nentries) return; - put = max(ch_sn2->w_remote_GP.put, ch->remote_nentries); + put = max(ch_sn2->w_remote_GP.put, remote_nentries); do { msg = (struct xpc_msg_sn2 *)((u64)ch_sn2->remote_msgqueue + - (put % ch->remote_nentries) * + (put % remote_nentries) * ch->entry_size); DBUG_ON(!(msg->flags & XPC_M_SN2_READY)); DBUG_ON(!(msg->flags & XPC_M_SN2_DONE)); - DBUG_ON(msg->number != put - ch->remote_nentries); + DBUG_ON(msg->number != put - remote_nentries); msg->flags = 0; } while (++put < ch_sn2->remote_GP.put); } @@ -2308,60 +2348,70 @@ xpc_received_payload_sn2(struct xpc_channel *ch, void *payload) xpc_acknowledge_msgs_sn2(ch, get, msg->flags); } +static struct xpc_arch_operations xpc_arch_ops_sn2 = { + .setup_partitions = xpc_setup_partitions_sn2, + .teardown_partitions = xpc_teardown_partitions_sn2, + .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2, + .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2, + .setup_rsvd_page = xpc_setup_rsvd_page_sn2, + + .allow_hb = xpc_allow_hb_sn2, + .disallow_hb = xpc_disallow_hb_sn2, + .disallow_all_hbs = xpc_disallow_all_hbs_sn2, + .increment_heartbeat = xpc_increment_heartbeat_sn2, + .offline_heartbeat = xpc_offline_heartbeat_sn2, + .online_heartbeat = xpc_online_heartbeat_sn2, + .heartbeat_init = xpc_heartbeat_init_sn2, + .heartbeat_exit = xpc_heartbeat_exit_sn2, + .get_remote_heartbeat = xpc_get_remote_heartbeat_sn2, + + .request_partition_activation = + xpc_request_partition_activation_sn2, + .request_partition_reactivation = + xpc_request_partition_reactivation_sn2, + .request_partition_deactivation = + xpc_request_partition_deactivation_sn2, + .cancel_partition_deactivation_request = + xpc_cancel_partition_deactivation_request_sn2, + + .setup_ch_structures = xpc_setup_ch_structures_sn2, + .teardown_ch_structures = xpc_teardown_ch_structures_sn2, + + .make_first_contact = xpc_make_first_contact_sn2, + + .get_chctl_all_flags = xpc_get_chctl_all_flags_sn2, + .send_chctl_closerequest = xpc_send_chctl_closerequest_sn2, + .send_chctl_closereply = xpc_send_chctl_closereply_sn2, + .send_chctl_openrequest = xpc_send_chctl_openrequest_sn2, + .send_chctl_openreply = xpc_send_chctl_openreply_sn2, + .send_chctl_opencomplete = xpc_send_chctl_opencomplete_sn2, + .process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2, + + .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2, + + .setup_msg_structures = xpc_setup_msg_structures_sn2, + .teardown_msg_structures = xpc_teardown_msg_structures_sn2, + + .indicate_partition_engaged = xpc_indicate_partition_engaged_sn2, + .indicate_partition_disengaged = xpc_indicate_partition_disengaged_sn2, + .partition_engaged = xpc_partition_engaged_sn2, + .any_partition_engaged = xpc_any_partition_engaged_sn2, + .assume_partition_disengaged = xpc_assume_partition_disengaged_sn2, + + .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2, + .send_payload = xpc_send_payload_sn2, + .get_deliverable_payload = xpc_get_deliverable_payload_sn2, + .received_payload = xpc_received_payload_sn2, + .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2, +}; + int xpc_init_sn2(void) { int ret; size_t buf_size; - xpc_setup_partitions_sn = xpc_setup_partitions_sn_sn2; - xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2; - xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_sn2; - xpc_increment_heartbeat = xpc_increment_heartbeat_sn2; - xpc_offline_heartbeat = xpc_offline_heartbeat_sn2; - xpc_online_heartbeat = xpc_online_heartbeat_sn2; - xpc_heartbeat_init = xpc_heartbeat_init_sn2; - xpc_heartbeat_exit = xpc_heartbeat_exit_sn2; - xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_sn2; - - xpc_request_partition_activation = xpc_request_partition_activation_sn2; - xpc_request_partition_reactivation = - xpc_request_partition_reactivation_sn2; - xpc_request_partition_deactivation = - xpc_request_partition_deactivation_sn2; - xpc_cancel_partition_deactivation_request = - xpc_cancel_partition_deactivation_request_sn2; - - xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2; - xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_sn2; - xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_sn2; - xpc_make_first_contact = xpc_make_first_contact_sn2; - - xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_sn2; - xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_sn2; - xpc_send_chctl_closereply = xpc_send_chctl_closereply_sn2; - xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_sn2; - xpc_send_chctl_openreply = xpc_send_chctl_openreply_sn2; - - xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2; - - xpc_setup_msg_structures = xpc_setup_msg_structures_sn2; - xpc_teardown_msg_structures = xpc_teardown_msg_structures_sn2; - - xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2; - xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2; - xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2; - xpc_get_deliverable_payload = xpc_get_deliverable_payload_sn2; - - xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_sn2; - xpc_indicate_partition_disengaged = - xpc_indicate_partition_disengaged_sn2; - xpc_partition_engaged = xpc_partition_engaged_sn2; - xpc_any_partition_engaged = xpc_any_partition_engaged_sn2; - xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_sn2; - - xpc_send_payload = xpc_send_payload_sn2; - xpc_received_payload = xpc_received_payload_sn2; + xpc_arch_ops = xpc_arch_ops_sn2; if (offsetof(struct xpc_msg_sn2, payload) > XPC_MSG_HDR_MAX_SIZE) { dev_err(xpc_part, "header portion of struct xpc_msg_sn2 is " |