mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
- return 1;
+ return mpt3sas_check_for_pending_internal_cmds(ioc, smid);
if (ioc->base_cmds.status == MPT3_CMD_NOT_USED)
return 1;
Mpi2EventNotificationReply_t *mpi_reply;
Mpi2EventAckRequest_t *ack_request;
u16 smid;
+ struct _event_ack_list *delayed_event_ack;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (!mpi_reply)
goto out;
smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
if (!smid) {
- pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
- ioc->name, __func__);
+ delayed_event_ack = kzalloc(sizeof(*delayed_event_ack),
+ GFP_ATOMIC);
+ if (!delayed_event_ack)
+ goto out;
+ INIT_LIST_HEAD(&delayed_event_ack->list);
+ delayed_event_ack->Event = mpi_reply->Event;
+ delayed_event_ack->EventContext = mpi_reply->EventContext;
+ list_add_tail(&delayed_event_ack->list,
+ &ioc->delayed_event_ack_list);
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "DELAYED: EVENT ACK: event (0x%04x)\n",
+ ioc->name, le16_to_cpu(mpi_reply->Event)));
goto out;
}
}
ioc->shost->sg_tablesize = sg_tablesize;
- ioc->hi_priority_depth = facts->HighPriorityCredit;
- ioc->internal_depth = ioc->hi_priority_depth + (5);
+ ioc->internal_depth = min_t(int, (facts->HighPriorityCredit + (5)),
+ (facts->RequestCredit / 4));
+ if (ioc->internal_depth < INTERNAL_CMDS_COUNT) {
+ if (facts->RequestCredit <= (INTERNAL_CMDS_COUNT +
+ INTERNAL_SCSIIO_CMDS_COUNT)) {
+ pr_err(MPT3SAS_FMT "IOC doesn't have enough Request \
+ Credits, it has just %d number of credits\n",
+ ioc->name, facts->RequestCredit);
+ return -ENOMEM;
+ }
+ ioc->internal_depth = 10;
+ }
+
+ ioc->hi_priority_depth = ioc->internal_depth - (5);
/* command line tunables for max controller queue depth */
if (max_queue_depth != -1 && max_queue_depth != 0) {
max_request_credit = min_t(u16, max_queue_depth +
- ioc->hi_priority_depth + ioc->internal_depth,
- facts->RequestCredit);
+ ioc->internal_depth, facts->RequestCredit);
if (max_request_credit > MAX_HBA_QUEUE_DEPTH)
max_request_credit = MAX_HBA_QUEUE_DEPTH;
} else
max_request_credit = min_t(u16, facts->RequestCredit,
MAX_HBA_QUEUE_DEPTH);
- ioc->hba_queue_depth = max_request_credit;
+ /* Firmware maintains additional facts->HighPriorityCredit number of
+ * credits for HiPriprity Request messages, so hba queue depth will be
+ * sum of max_request_credit and high priority queue depth.
+ */
+ ioc->hba_queue_depth = max_request_credit + ioc->hi_priority_depth;
/* request frame size */
ioc->request_sz = facts->IOCRequestFrameSize * 4;
ioc->reply_post_queue_depth += 16 -
(ioc->reply_post_queue_depth % 16);
-
if (ioc->reply_post_queue_depth >
facts->MaxReplyDescriptorPostQueueDepth) {
ioc->reply_post_queue_depth =
/* set the scsi host can_queue depth
* with some internal commands that could be outstanding
*/
- ioc->shost->can_queue = ioc->scsiio_depth;
+ ioc->shost->can_queue = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT;
dinitprintk(ioc, pr_info(MPT3SAS_FMT
"scsi host: can_queue depth (%d)\n",
ioc->name, ioc->shost->can_queue));
ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
if (ioc->scsiio_depth < MPT3SAS_SAS_QUEUE_DEPTH)
goto out;
- retry_sz += 64;
- ioc->hba_queue_depth = max_request_credit - retry_sz;
+ retry_sz = 64;
+ ioc->hba_queue_depth -= retry_sz;
goto retry_allocation;
}
u32 reply_address;
u16 smid;
struct _tr_list *delayed_tr, *delayed_tr_next;
+ struct _sc_list *delayed_sc, *delayed_sc_next;
+ struct _event_ack_list *delayed_event_ack, *delayed_event_ack_next;
u8 hide_flag;
struct adapter_reply_queue *reply_q;
long reply_post_free;
kfree(delayed_tr);
}
+ list_for_each_entry_safe(delayed_sc, delayed_sc_next,
+ &ioc->delayed_sc_list, list) {
+ list_del(&delayed_sc->list);
+ kfree(delayed_sc);
+ }
+
+ list_for_each_entry_safe(delayed_event_ack, delayed_event_ack_next,
+ &ioc->delayed_event_ack_list, list) {
+ list_del(&delayed_event_ack->list);
+ kfree(delayed_event_ack);
+ }
+
/* initialize the scsi lookup free list */
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
INIT_LIST_HEAD(&ioc->free_list);
#define NO_SLEEP 0
#define INTERNAL_CMDS_COUNT 10 /* reserved cmds */
+/* reserved for issuing internally framed scsi io cmds */
+#define INTERNAL_SCSIIO_CMDS_COUNT 3
#define MPI3_HIM_MASK 0xFFFFFFFF /* mask every bit*/
u16 state;
};
+/**
+ * struct _sc_list - delayed SAS_IO_UNIT_CONTROL message list
+ * @handle: device handle
+ */
+struct _sc_list {
+ struct list_head list;
+ u16 handle;
+};
+
+/**
+ * struct _event_ack_list - delayed event acknowledgment list
+ * @Event: Event ID
+ * @EventContext: used to track the event uniquely
+ */
+struct _event_ack_list {
+ struct list_head list;
+ u16 Event;
+ u32 EventContext;
+};
/**
* struct adapter_reply_queue - the reply queue struct
* @replyPostRegisterIndex: index of next position in Reply Desc Post Queue
* @delayed_tr_list: target reset link list
* @delayed_tr_volume_list: volume target reset link list
+ * @delayed_sc_list:
+ * @delayed_event_ack_list:
* @temp_sensors_count: flag to carry the number of temperature sensors
* @pci_access_mutex: Mutex to synchronize ioctl,sysfs show path and
* pci resource handling. PCI resource freeing will lead to free
struct list_head delayed_tr_list;
struct list_head delayed_tr_volume_list;
+ struct list_head delayed_sc_list;
+ struct list_head delayed_event_ack_list;
u8 temp_sensors_count;
struct mutex pci_access_mutex;
void mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
void mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address);
+u8 mpt3sas_check_for_pending_internal_cmds(struct MPT3SAS_ADAPTER *ioc,
+ u16 smid);
struct _sas_node *mpt3sas_scsih_expander_find_by_handle(
struct MPT3SAS_ADAPTER *ioc, u16 handle);
Mpi2SasIoUnitControlRequest_t *mpi_request;
u16 smid_sas_ctrl;
u32 ioc_state;
+ struct _sc_list *delayed_sc;
if (ioc->remove_host) {
dewtprintk(ioc, pr_info(MPT3SAS_FMT
smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
if (!smid_sas_ctrl) {
- pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
- ioc->name, __func__);
- return 1;
+ delayed_sc = kzalloc(sizeof(*delayed_sc), GFP_ATOMIC);
+ if (!delayed_sc)
+ return _scsih_check_for_pending_tm(ioc, smid);
+ INIT_LIST_HEAD(&delayed_sc->list);
+ delayed_sc->handle = mpi_request_tm->DevHandle;
+ list_add_tail(&delayed_sc->list, &ioc->delayed_sc_list);
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "DELAYED:sc:handle(0x%04x), (open)\n",
+ ioc->name, handle));
+ return _scsih_check_for_pending_tm(ioc, smid);
}
dewtprintk(ioc, pr_info(MPT3SAS_FMT
pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
}
- return 1;
+ return mpt3sas_check_for_pending_internal_cmds(ioc, smid);
}
/**
return _scsih_check_for_pending_tm(ioc, smid);
}
+/**
+ * _scsih_issue_delayed_event_ack - issue delayed Event ACK messages
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @event: Event ID
+ * @event_context: used to track events uniquely
+ *
+ * Context - processed in interrupt context.
+ */
+void
+_scsih_issue_delayed_event_ack(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 event,
+ u32 event_context)
+{
+ Mpi2EventAckRequest_t *ack_request;
+ int i = smid - ioc->internal_smid;
+ unsigned long flags;
+
+ /* Without releasing the smid just update the
+ * call back index and reuse the same smid for
+ * processing this delayed request
+ */
+ spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+ ioc->internal_lookup[i].cb_idx = ioc->base_cb_idx;
+ spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "EVENT ACK: event(0x%04x), smid(%d), cb(%d)\n",
+ ioc->name, le16_to_cpu(event), smid,
+ ioc->base_cb_idx));
+ ack_request = mpt3sas_base_get_msg_frame(ioc, smid);
+ memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
+ ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
+ ack_request->Event = event;
+ ack_request->EventContext = event_context;
+ ack_request->VF_ID = 0; /* TODO */
+ ack_request->VP_ID = 0;
+ mpt3sas_base_put_smid_default(ioc, smid);
+}
+
+/**
+ * _scsih_issue_delayed_sas_io_unit_ctrl - issue delayed
+ * sas_io_unit_ctrl messages
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @handle: device handle
+ *
+ * Context - processed in interrupt context.
+ */
+void
+_scsih_issue_delayed_sas_io_unit_ctrl(struct MPT3SAS_ADAPTER *ioc,
+ u16 smid, u16 handle)
+ {
+ Mpi2SasIoUnitControlRequest_t *mpi_request;
+ u32 ioc_state;
+ int i = smid - ioc->internal_smid;
+ unsigned long flags;
+
+ if (ioc->remove_host) {
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: host has been removed\n",
+ __func__, ioc->name));
+ return;
+ } else if (ioc->pci_error_recovery) {
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: host in pci error recovery\n",
+ __func__, ioc->name));
+ return;
+ }
+ ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+ if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: host is not operational\n",
+ __func__, ioc->name));
+ return;
+ }
+
+ /* Without releasing the smid just update the
+ * call back index and reuse the same smid for
+ * processing this delayed request
+ */
+ spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+ ioc->internal_lookup[i].cb_idx = ioc->tm_sas_control_cb_idx;
+ spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+ dewtprintk(ioc, pr_info(MPT3SAS_FMT
+ "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
+ ioc->name, le16_to_cpu(handle), smid,
+ ioc->tm_sas_control_cb_idx));
+ mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+ memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
+ mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
+ mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
+ mpi_request->DevHandle = handle;
+ mpt3sas_base_put_smid_default(ioc, smid);
+}
+
+/**
+ * _scsih_check_for_pending_internal_cmds - check for pending internal messages
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Context: Executed in interrupt context
+ *
+ * This will check delayed internal messages list, and process the
+ * next request.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ * 0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_check_for_pending_internal_cmds(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+ struct _sc_list *delayed_sc;
+ struct _event_ack_list *delayed_event_ack;
+
+ if (!list_empty(&ioc->delayed_event_ack_list)) {
+ delayed_event_ack = list_entry(ioc->delayed_event_ack_list.next,
+ struct _event_ack_list, list);
+ _scsih_issue_delayed_event_ack(ioc, smid,
+ delayed_event_ack->Event, delayed_event_ack->EventContext);
+ list_del(&delayed_event_ack->list);
+ kfree(delayed_event_ack);
+ return 0;
+ }
+
+ if (!list_empty(&ioc->delayed_sc_list)) {
+ delayed_sc = list_entry(ioc->delayed_sc_list.next,
+ struct _sc_list, list);
+ _scsih_issue_delayed_sas_io_unit_ctrl(ioc, smid,
+ delayed_sc->handle);
+ list_del(&delayed_sc->list);
+ kfree(delayed_sc);
+ return 0;
+ }
+ return 1;
+}
/**
* _scsih_check_for_pending_tm - check for pending task management
INIT_LIST_HEAD(&ioc->raid_device_list);
INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
INIT_LIST_HEAD(&ioc->delayed_tr_list);
+ INIT_LIST_HEAD(&ioc->delayed_sc_list);
+ INIT_LIST_HEAD(&ioc->delayed_event_ack_list);
INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
INIT_LIST_HEAD(&ioc->reply_queue_list);
projects / users / hch / xfs.git / commitdiff