staticint prot_guard_mask = 3;
module_param(prot_guard_mask, int, 0);
MODULE_PARM_DESC(prot_guard_mask, " Host protection guard mask, def=3"); staticint logging_level;
module_param(logging_level, int, 0);
MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info (default=0)"); staticint max_sgl_entries = MPI3MR_DEFAULT_SGL_ENTRIES;
module_param(max_sgl_entries, int, 0444);
MODULE_PARM_DESC(max_sgl_entries, "Preferred max number of SG entries to be used for a single I/O\n" "The actual value will be determined by the driver\n" "(Minimum=256, Maximum=2048, default=256)");
/* * SAS Log info code for a NCQ collateral abort after an NCQ error: * IOC_LOGINFO_PREFIX_PL | PL_LOGINFO_CODE_SATA_NCQ_FAIL_ALL_CMDS_AFTR_ERR * See: drivers/message/fusion/lsi/mpi_log_sas.h
*/ #define IOC_LOGINFO_SATA_NCQ_FAIL_AFTER_ERR 0x31080000
/** * mpi3mr_host_tag_for_scmd - Get host tag for a scmd * @mrioc: Adapter instance reference * @scmd: SCSI command reference * * Calculate the host tag based on block tag for a given scmd. * * Return: Valid host tag or MPI3MR_HOSTTAG_INVALID.
*/ static u16 mpi3mr_host_tag_for_scmd(struct mpi3mr_ioc *mrioc, struct scsi_cmnd *scmd)
{ struct scmd_priv *priv = NULL;
u32 unique_tag;
u16 host_tag, hw_queue;
/** * mpi3mr_alloc_fwevt - Allocate firmware event * @len: length of firmware event data to allocate * * Allocate firmware event with required length and initialize * the reference counter. * * Return: firmware event reference.
*/ staticstruct mpi3mr_fwevt *mpi3mr_alloc_fwevt(int len)
{ struct mpi3mr_fwevt *fwevt;
fwevt = kzalloc(sizeof(*fwevt) + len, GFP_ATOMIC); if (!fwevt) return NULL;
kref_init(&fwevt->ref_count); return fwevt;
}
/** * mpi3mr_fwevt_add_to_list - Add firmware event to the list * @mrioc: Adapter instance reference * @fwevt: Firmware event reference * * Add the given firmware event to the firmware event list. * * Return: Nothing.
*/ staticvoid mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt)
{ unsignedlong flags;
if (!mrioc->fwevt_worker_thread) return;
spin_lock_irqsave(&mrioc->fwevt_lock, flags); /* get fwevt reference count while adding it to fwevt_list */
mpi3mr_fwevt_get(fwevt);
INIT_LIST_HEAD(&fwevt->list);
list_add_tail(&fwevt->list, &mrioc->fwevt_list);
INIT_WORK(&fwevt->work, mpi3mr_fwevt_worker); /* get fwevt reference count while enqueueing it to worker queue */
mpi3mr_fwevt_get(fwevt);
queue_work(mrioc->fwevt_worker_thread, &fwevt->work);
spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
}
/** * mpi3mr_hdb_trigger_data_event - Add hdb trigger data event to * the list * @mrioc: Adapter instance reference * @event_data: Event data * * Add the given hdb trigger data event to the firmware event * list. * * Return: Nothing.
*/ void mpi3mr_hdb_trigger_data_event(struct mpi3mr_ioc *mrioc, struct trigger_event_data *event_data)
{ struct mpi3mr_fwevt *fwevt;
u16 sz = sizeof(*event_data);
fwevt = mpi3mr_alloc_fwevt(sz); if (!fwevt) {
ioc_warn(mrioc, "failed to queue hdb trigger data event\n"); return;
}
/** * mpi3mr_fwevt_del_from_list - Delete firmware event from list * @mrioc: Adapter instance reference * @fwevt: Firmware event reference * * Delete the given firmware event from the firmware event list. * * Return: Nothing.
*/ staticvoid mpi3mr_fwevt_del_from_list(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt)
{ unsignedlong flags;
spin_lock_irqsave(&mrioc->fwevt_lock, flags); if (!list_empty(&fwevt->list)) {
list_del_init(&fwevt->list); /* * Put fwevt reference count after * removing it from fwevt_list
*/
mpi3mr_fwevt_put(fwevt);
}
spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
}
/** * mpi3mr_dequeue_fwevt - Dequeue firmware event from the list * @mrioc: Adapter instance reference * * Dequeue a firmware event from the firmware event list. * * Return: firmware event.
*/ staticstruct mpi3mr_fwevt *mpi3mr_dequeue_fwevt( struct mpi3mr_ioc *mrioc)
{ unsignedlong flags; struct mpi3mr_fwevt *fwevt = NULL;
spin_lock_irqsave(&mrioc->fwevt_lock, flags); if (!list_empty(&mrioc->fwevt_list)) {
fwevt = list_first_entry(&mrioc->fwevt_list, struct mpi3mr_fwevt, list);
list_del_init(&fwevt->list); /* * Put fwevt reference count after * removing it from fwevt_list
*/
mpi3mr_fwevt_put(fwevt);
}
spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
return fwevt;
}
/** * mpi3mr_cancel_work - cancel firmware event * @fwevt: fwevt object which needs to be canceled * * Return: Nothing.
*/ staticvoid mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt)
{ /* * Wait on the fwevt to complete. If this returns 1, then * the event was never executed. * * If it did execute, we wait for it to finish, and the put will * happen from mpi3mr_process_fwevt()
*/ if (cancel_work_sync(&fwevt->work)) { /* * Put fwevt reference count after * dequeuing it from worker queue
*/
mpi3mr_fwevt_put(fwevt); /* * Put fwevt reference count to neutralize * kref_init increment
*/
mpi3mr_fwevt_put(fwevt);
}
}
if ((list_empty(&mrioc->fwevt_list) && !mrioc->current_event) ||
!mrioc->fwevt_worker_thread) return;
while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)))
mpi3mr_cancel_work(fwevt);
if (mrioc->current_event) {
fwevt = mrioc->current_event; /* * Don't call cancel_work_sync() API for the * fwevt work if the controller reset is * get called as part of processing the * same fwevt work (or) when worker thread is * waiting for device add/remove APIs to complete. * Otherwise we will see deadlock.
*/ if (current_work() == &fwevt->work || fwevt->pending_at_sml) {
fwevt->discard = 1; return;
}
mpi3mr_cancel_work(fwevt);
}
}
/** * mpi3mr_queue_qd_reduction_event - Queue TG QD reduction event * @mrioc: Adapter instance reference * @tg: Throttle group information pointer * * Accessor to queue on synthetically generated driver event to * the event worker thread, the driver event will be used to * reduce the QD of all VDs in the TG from the worker thread. * * Return: None.
*/ staticvoid mpi3mr_queue_qd_reduction_event(struct mpi3mr_ioc *mrioc, struct mpi3mr_throttle_group_info *tg)
{ struct mpi3mr_fwevt *fwevt;
u16 sz = sizeof(struct mpi3mr_throttle_group_info *);
/* * If the QD reduction event is already queued due to throttle and if * the QD is not restored through device info change event * then dont queue further reduction events
*/ if (tg->fw_qd != tg->modified_qd) return;
/** * mpi3mr_count_dev_pending - Count commands pending for a lun * @rq: Block request * @data: SCSI device reference * * This is an iterator function called for each SCSI command in * a host and if the command is pending in the LLD for the * specific device(lun) then device specific pending I/O counter * is updated in the device structure. * * Return: true always.
*/
if (scmd) {
priv = scsi_cmd_priv(scmd); if (!priv->in_lld_scope) goto out; if (scmd->device == sdev)
sdev_priv_data->pend_count++;
}
out: returntrue;
}
/** * mpi3mr_count_tgt_pending - Count commands pending for target * @rq: Block request * @data: SCSI target reference * * This is an iterator function called for each SCSI command in * a host and if the command is pending in the LLD for the * specific target then target specific pending I/O counter is * updated in the target structure. * * Return: true always.
*/
if (scmd) {
priv = scsi_cmd_priv(scmd); if (!priv->in_lld_scope) goto out; if (scmd->device && (scsi_target(scmd->device) == starget))
stgt_priv_data->pend_count++;
}
out: returntrue;
}
/** * mpi3mr_flush_host_io - Flush host I/Os * @mrioc: Adapter instance reference * * Flush all of the pending I/Os by calling * blk_mq_tagset_busy_iter() for each possible tag. This is * executed post controller reset * * Return: Nothing.
*/ void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc)
{ struct Scsi_Host *shost = mrioc->shost;
/** * mpi3mr_flush_cmds_for_unrecovered_controller - Flush all pending cmds * @mrioc: Adapter instance reference * * This function waits for currently running IO poll threads to * exit and then flushes all host I/Os and any internal pending * cmds. This is executed after controller is marked as * unrecoverable. * * Return: Nothing.
*/ void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc)
{ struct Scsi_Host *shost = mrioc->shost; int i;
if (!mrioc->unrecoverable) return;
if (mrioc->op_reply_qinfo) { for (i = 0; i < mrioc->num_queues; i++) { while (atomic_read(&mrioc->op_reply_qinfo[i].in_use))
udelay(500);
atomic_set(&mrioc->op_reply_qinfo[i].pend_ios, 0);
}
}
mrioc->flush_io_count = 0;
blk_mq_tagset_busy_iter(&shost->tag_set,
mpi3mr_flush_scmd, (void *)mrioc);
mpi3mr_flush_delayed_cmd_lists(mrioc);
mpi3mr_flush_drv_cmds(mrioc);
}
/** * mpi3mr_tgtdev_del_from_list -Delete tgtdevice from the list * @mrioc: Adapter instance reference * @tgtdev: Target device * @must_delete: Must delete the target device from the list irrespective * of the device state. * * Remove the target device from the target device list * * Return: Nothing.
*/ staticvoid mpi3mr_tgtdev_del_from_list(struct mpi3mr_ioc *mrioc, struct mpi3mr_tgt_dev *tgtdev, bool must_delete)
{ unsignedlong flags;
/** * __mpi3mr_get_tgtdev_from_tgtpriv -Get tgtdev from tgt private * @mrioc: Adapter instance reference * @tgt_priv: Target private data * * Accessor to return target device from the target private * data. Non Lock version * * Return: Target device reference.
*/ staticstruct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv( struct mpi3mr_ioc *mrioc, struct mpi3mr_stgt_priv_data *tgt_priv)
{ struct mpi3mr_tgt_dev *tgtdev;
assert_spin_locked(&mrioc->tgtdev_lock);
tgtdev = tgt_priv->tgt_dev; if (tgtdev)
mpi3mr_tgtdev_get(tgtdev); return tgtdev;
}
/** * mpi3mr_set_io_divert_for_all_vd_in_tg -set divert for TG VDs * @mrioc: Adapter instance reference * @tg: Throttle group information pointer * @divert_value: 1 or 0 * * Accessor to set io_divert flag for each device associated * with the given throttle group with the given value. * * Return: None.
*/ staticvoid mpi3mr_set_io_divert_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc, struct mpi3mr_throttle_group_info *tg, u8 divert_value)
{ unsignedlong flags; struct mpi3mr_tgt_dev *tgtdev; struct mpi3mr_stgt_priv_data *tgt_priv;
/** * mpi3mr_print_device_event_notice - print notice related to post processing of * device event after controller reset. * * @mrioc: Adapter instance reference * @device_add: true for device add event and false for device removal event * * Return: None.
*/ void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, bool device_add)
{
ioc_notice(mrioc, "Device %s was in progress before the reset and\n",
(device_add ? "addition" : "removal"));
ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n");
ioc_notice(mrioc, "are matched with attached devices for correctness\n");
}
/** * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers * @mrioc: Adapter instance reference * @tgtdev: Target device structure * * Checks whether the device is exposed to upper layers and if it * is then remove the device from upper layers by calling * scsi_remove_target(). * * Return: 0 on success, non zero on failure.
*/ void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, struct mpi3mr_tgt_dev *tgtdev)
{ struct mpi3mr_stgt_priv_data *tgt_priv;
/** * mpi3mr_report_tgtdev_to_host - Expose device to upper layers * @mrioc: Adapter instance reference * @perst_id: Persistent ID of the device * * Checks whether the device can be exposed to upper layers and * if it is not then expose the device to upper layers by * calling scsi_scan_target(). * * Return: 0 on success, non zero on failure.
*/ staticint mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
u16 perst_id)
{ int retval = 0; struct mpi3mr_tgt_dev *tgtdev;
if (mrioc->reset_in_progress || mrioc->pci_err_recovery) return -1;
tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id); if (!tgtdev) {
retval = -1; goto out;
} if (tgtdev->is_hidden || tgtdev->host_exposed) {
retval = -1; goto out;
} if (!mrioc->sas_transport_enabled || (tgtdev->dev_type !=
MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl){
tgtdev->host_exposed = 1; if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
scsi_scan_target(&mrioc->shost->shost_gendev,
mrioc->scsi_device_channel, tgtdev->perst_id,
SCAN_WILD_CARD, SCSI_SCAN_INITIAL); if (!tgtdev->starget)
tgtdev->host_exposed = 0; if (mrioc->current_event) {
mrioc->current_event->pending_at_sml = 0; if (mrioc->current_event->discard) {
mpi3mr_print_device_event_notice(mrioc, true); goto out;
}
}
dprint_event_bh(mrioc, "exposed target device with handle(0x%04x), perst_id(%d)\n",
tgtdev->dev_handle, perst_id); goto out;
} else
mpi3mr_report_tgtdev_to_sas_transport(mrioc, tgtdev);
out: if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
return retval;
}
/** * mpi3mr_change_queue_depth- Change QD callback handler * @sdev: SCSI device reference * @q_depth: Queue depth * * Validate and limit QD and call scsi_change_queue_depth. * * Return: return value of scsi_change_queue_depth
*/ staticint mpi3mr_change_queue_depth(struct scsi_device *sdev, int q_depth)
{ struct scsi_target *starget = scsi_target(sdev); struct Scsi_Host *shost = dev_to_shost(&starget->dev); int retval = 0;
/** * mpi3mr_update_sdev - Update SCSI device information * @sdev: SCSI device reference * @data: target device reference * * This is an iterator function called for each SCSI device in a * target to update the target specific information into each * SCSI device. * * Return: Nothing.
*/ staticvoid
mpi3mr_update_sdev(struct scsi_device *sdev, void *data)
{ struct mpi3mr_tgt_dev *tgtdev; struct queue_limits lim;
tgtdev = (struct mpi3mr_tgt_dev *)data; if (!tgtdev) return;
/** * mpi3mr_refresh_tgtdevs - Refresh target device exposure * @mrioc: Adapter instance reference * * This is executed post controller reset to identify any * missing devices during reset and remove from the upper layers * or expose any newly detected device to the upper layers. * * Return: Nothing.
*/ staticvoid mpi3mr_refresh_tgtdevs(struct mpi3mr_ioc *mrioc)
{ struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; struct mpi3mr_stgt_priv_data *tgt_priv;
switch (dev_pg0->access_status) { case MPI3_DEVICE0_ASTATUS_NO_ERRORS: case MPI3_DEVICE0_ASTATUS_PREPARE: case MPI3_DEVICE0_ASTATUS_NEEDS_INITIALIZATION: case MPI3_DEVICE0_ASTATUS_DEVICE_MISSING_DELAY: break; default:
tgtdev->is_hidden = 1; break;
}
/** * mpi3mr_devstatuschg_evt_bh - DevStatusChange evt bottomhalf * @mrioc: Adapter instance reference * @fwevt: Firmware event information. * * Process Device status Change event and based on device's new * information, either expose the device to the upper layers, or * remove the device from upper layers. * * Return: Nothing.
*/ staticvoid mpi3mr_devstatuschg_evt_bh(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt)
{
u16 dev_handle = 0;
u8 uhide = 0, delete = 0, cleanup = 0; struct mpi3mr_tgt_dev *tgtdev = NULL; struct mpi3_event_data_device_status_change *evtdata =
(struct mpi3_event_data_device_status_change *)fwevt->event_data;
dev_handle = le16_to_cpu(evtdata->dev_handle);
dprint_event_bh(mrioc, "processing device status change event bottom half for handle(0x%04x), rc(0x%02x)\n",
dev_handle, evtdata->reason_code); switch (evtdata->reason_code) { case MPI3_EVENT_DEV_STAT_RC_HIDDEN: delete = 1; break; case MPI3_EVENT_DEV_STAT_RC_NOT_HIDDEN:
uhide = 1; break; case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: delete = 1;
cleanup = 1; break; default:
ioc_info(mrioc, "%s :Unhandled reason code(0x%x)\n", __func__,
evtdata->reason_code); break;
}
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); if (!tgtdev) {
dprint_event_bh(mrioc, "processing device status change event bottom half,\n" "cannot identify target device for handle(0x%04x), rc(0x%02x)\n",
dev_handle, evtdata->reason_code); goto out;
} if (uhide) {
tgtdev->is_hidden = 0; if (!tgtdev->host_exposed)
mpi3mr_report_tgtdev_to_host(mrioc, tgtdev->perst_id);
}
if (delete)
mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
if (cleanup) {
mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false);
mpi3mr_tgtdev_put(tgtdev);
}
out: if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
}
/** * mpi3mr_devinfochg_evt_bh - DeviceInfoChange evt bottomhalf * @mrioc: Adapter instance reference * @dev_pg0: New device page0 * * Process Device Info Change event and based on device's new * information, either expose the device to the upper layers, or * remove the device from upper layers or update the details of * the device. * * Return: Nothing.
*/ staticvoid mpi3mr_devinfochg_evt_bh(struct mpi3mr_ioc *mrioc, struct mpi3_device_page0 *dev_pg0)
{ struct mpi3mr_tgt_dev *tgtdev = NULL;
u16 dev_handle = 0, perst_id = 0;
perst_id = le16_to_cpu(dev_pg0->persistent_id);
dev_handle = le16_to_cpu(dev_pg0->dev_handle);
dprint_event_bh(mrioc, "processing device info change event bottom half for handle(0x%04x), perst_id(%d)\n",
dev_handle, perst_id);
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, dev_handle); if (!tgtdev) {
dprint_event_bh(mrioc, "cannot identify target device for device info\n" "change event handle(0x%04x), perst_id(%d)\n",
dev_handle, perst_id); goto out;
}
mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, false); if (!tgtdev->is_hidden && !tgtdev->host_exposed)
mpi3mr_report_tgtdev_to_host(mrioc, perst_id); if (tgtdev->is_hidden && tgtdev->host_exposed)
mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); if (!tgtdev->is_hidden && tgtdev->host_exposed && tgtdev->starget)
starget_for_each_device(tgtdev->starget, (void *)tgtdev,
mpi3mr_update_sdev);
out: if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
}
for (i = 0; i < event_data->num_entries; i++) { if (fwevt->discard) return;
handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); if (!handle) continue;
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); if (!tgtdev) continue;
switch (reason_code) { case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: if (tgtdev->host_exposed)
mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false);
mpi3mr_tgtdev_put(tgtdev); break; case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE:
{ if (!mrioc->sas_transport_enabled || tgtdev->non_stl
|| tgtdev->is_hidden) break;
link_rate = event_data->phy_entry[i].link_rate >> 4;
prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; if (link_rate == prev_link_rate) break; if (!parent_sas_address) break;
parent_phy_number = event_data->start_phy_num + i;
mpi3mr_update_links(mrioc, parent_sas_address, handle,
parent_phy_number, link_rate, hba_port); break;
} default: break;
} if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
}
if (mrioc->sas_transport_enabled && (event_data->exp_status ==
MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) { if (sas_expander)
mpi3mr_expander_remove(mrioc, exp_sas_address,
hba_port);
}
}
/** * mpi3mr_pcietopochg_evt_debug - PCIeTopoChange details * @mrioc: Adapter instance reference * @event_data: PCIe topology change list event data * * Prints information about the PCIe topology change event. * * Return: Nothing.
*/ staticvoid
mpi3mr_pcietopochg_evt_debug(struct mpi3mr_ioc *mrioc, struct mpi3_event_data_pcie_topology_change_list *event_data)
{ int i;
u16 handle;
u16 reason_code;
u8 port_number; char *status_str = NULL;
u8 link_rate, prev_link_rate;
switch (event_data->switch_status) { case MPI3_EVENT_PCIE_TOPO_SS_NOT_RESPONDING:
status_str = "remove"; break; case MPI3_EVENT_PCIE_TOPO_SS_RESPONDING:
status_str = "responding"; break; case MPI3_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING:
status_str = "remove delay"; break; case MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH:
status_str = "direct attached"; break; default:
status_str = "unknown status"; break;
}
ioc_info(mrioc, "%s :pcie topology change: (%s)\n",
__func__, status_str);
ioc_info(mrioc, "%s :\tswitch_handle(0x%04x), enclosure_handle(0x%04x) start_port(%02d), num_entries(%d)\n",
__func__, le16_to_cpu(event_data->switch_dev_handle),
le16_to_cpu(event_data->enclosure_handle),
event_data->start_port_num, event_data->num_entries); for (i = 0; i < event_data->num_entries; i++) {
handle =
le16_to_cpu(event_data->port_entry[i].attached_dev_handle); if (!handle) continue;
port_number = event_data->start_port_num + i;
reason_code = event_data->port_entry[i].port_status; switch (reason_code) { case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
status_str = "target remove"; break; case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
status_str = "delay target remove"; break; case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
status_str = "link status change"; break; case MPI3_EVENT_PCIE_TOPO_PS_NO_CHANGE:
status_str = "link status no change"; break; case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING:
status_str = "target responding"; break; default:
status_str = "unknown"; break;
}
link_rate = event_data->port_entry[i].current_port_info &
MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK;
prev_link_rate = event_data->port_entry[i].previous_port_info &
MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK;
ioc_info(mrioc, "%s :\tport(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n",
__func__, port_number, handle, status_str, link_rate,
prev_link_rate);
}
}
/** * mpi3mr_pcietopochg_evt_bh - PCIeTopologyChange evt bottomhalf * @mrioc: Adapter instance reference * @fwevt: Firmware event reference * * Prints information about the PCIe topology change event and * for "not responding" event code, removes the device from the * upper layers. * * Return: Nothing.
*/ staticvoid mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt)
{ struct mpi3_event_data_pcie_topology_change_list *event_data =
(struct mpi3_event_data_pcie_topology_change_list *)fwevt->event_data; int i;
u16 handle;
u8 reason_code; struct mpi3mr_tgt_dev *tgtdev = NULL;
mpi3mr_pcietopochg_evt_debug(mrioc, event_data);
for (i = 0; i < event_data->num_entries; i++) { if (fwevt->discard) return;
handle =
le16_to_cpu(event_data->port_entry[i].attached_dev_handle); if (!handle) continue;
tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); if (!tgtdev) continue;
switch (reason_code) { case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: if (tgtdev->host_exposed)
mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, false);
mpi3mr_tgtdev_put(tgtdev); break; default: break;
} if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
}
}
/** * mpi3mr_logdata_evt_bh - Log data event bottomhalf * @mrioc: Adapter instance reference * @fwevt: Firmware event reference * * Extracts the event data and calls application interfacing * function to process the event further. * * Return: Nothing.
*/ staticvoid mpi3mr_logdata_evt_bh(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt)
{
mpi3mr_app_save_logdata(mrioc, fwevt->event_data,
fwevt->event_data_size);
}
/** * mpi3mr_update_sdev_qd - Update SCSI device queue depath * @sdev: SCSI device reference * @data: Queue depth reference * * This is an iterator function called for each SCSI device in a * target to update the QD of each SCSI device. * * Return: Nothing.
*/ staticvoid mpi3mr_update_sdev_qd(struct scsi_device *sdev, void *data)
{
u16 *q_depth = (u16 *)data;
if (mrioc->stop_drv_processing) {
dprint_event_bh(mrioc, "ignoring event(0x%02x) in the bottom half handler\n" "due to stop_drv_processing\n", fwevt->event_id); goto out;
}
if (mrioc->unrecoverable) {
dprint_event_bh(mrioc, "ignoring event(0x%02x) in bottom half handler due to unrecoverable controller\n",
fwevt->event_id); goto out;
}
if (!fwevt->process_evt) goto evt_ack;
dprint_event_bh(mrioc, "processing event(0x%02x) -(0x%08x) in the bottom half handler\n",
fwevt->event_id, fwevt->evt_ctx);
if (mrioc->unrecoverable || mrioc->pci_err_recovery) break;
dprint_event_bh(mrioc, "scan for non responding and newly added devices after soft reset started\n"); if (mrioc->sas_transport_enabled) {
mpi3mr_refresh_sas_ports(mrioc);
mpi3mr_refresh_expanders(mrioc);
}
mpi3mr_refresh_tgtdevs(mrioc);
ioc_info(mrioc, "scan for non responding and newly added devices after soft reset completed\n"); break;
} case MPI3MR_DRIVER_EVENT_PROCESS_TRIGGER:
{
mpi3mr_process_trigger_data_event_bh(mrioc,
(struct trigger_event_data *)fwevt->event_data); break;
} default: break;
}
evt_ack: if (fwevt->send_ack)
mpi3mr_process_event_ack(mrioc, fwevt->event_id,
fwevt->evt_ctx);
out: /* Put fwevt reference count to neutralize kref_init increment */
mpi3mr_fwevt_put(fwevt);
mrioc->current_event = NULL;
}
/** * mpi3mr_fwevt_worker - Firmware event worker * @work: Work struct containing firmware event * * Extracts the firmware event and calls mpi3mr_fwevt_bh. * * Return: Nothing.
*/ staticvoid mpi3mr_fwevt_worker(struct work_struct *work)
{ struct mpi3mr_fwevt *fwevt = container_of(work, struct mpi3mr_fwevt,
work);
mpi3mr_fwevt_bh(fwevt->mrioc, fwevt); /* * Put fwevt reference count after * dequeuing it from worker queue
*/
mpi3mr_fwevt_put(fwevt);
}
/** * mpi3mr_create_tgtdev - Create and add a target device * @mrioc: Adapter instance reference * @dev_pg0: Device Page 0 data * * If the device specified by the device page 0 data is not * present in the driver's internal list, allocate the memory * for the device, populate the data and add to the list, else * update the device data. The key is persistent ID. * * Return: 0 on success, -ENOMEM on memory allocation failure
*/ staticint mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc, struct mpi3_device_page0 *dev_pg0)
{ int retval = 0; struct mpi3mr_tgt_dev *tgtdev = NULL;
u16 perst_id = 0; unsignedlong flags;
perst_id = le16_to_cpu(dev_pg0->persistent_id); if (perst_id == MPI3_DEVICE0_PERSISTENTID_INVALID) return retval;
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