*/
#include "hisi_sas.h"
+#include "../libsas/sas_internal.h"
#define DRV_NAME "hisi_sas"
#define DEV_IS_GONE(dev) \
*/
u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max)
{
- u16 rate = 0;
+ u8 rate = 0;
int i;
max -= SAS_LINK_RATE_1_5_GBPS;
void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
struct hisi_sas_slot *slot)
{
- struct hisi_sas_dq *dq = &hisi_hba->dq[slot->dlvry_queue];
unsigned long flags;
+ int device_id = slot->device_id;
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[device_id];
if (task) {
struct device *dev = hisi_hba->dev;
task->lldd_task = NULL;
- if (!sas_protocol_ata(task->task_proto))
+ if (!sas_protocol_ata(task->task_proto)) {
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+
if (slot->n_elem)
dma_unmap_sg(dev, task->scatter,
task->num_scatter,
task->data_dir);
+ if (slot->n_elem_dif)
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+ }
}
-
- spin_lock_irqsave(&dq->lock, flags);
+ spin_lock_irqsave(&sas_dev->lock, flags);
list_del_init(&slot->entry);
- spin_unlock_irqrestore(&dq->lock, flags);
+ spin_unlock_irqrestore(&sas_dev->lock, flags);
memset(slot, 0, offsetof(struct hisi_sas_slot, buf));
return rc;
}
+static void hisi_sas_dif_dma_unmap(struct hisi_hba *hisi_hba,
+ struct sas_task *task, int n_elem_dif)
+{
+ struct device *dev = hisi_hba->dev;
+
+ if (n_elem_dif) {
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+ }
+}
+
+static int hisi_sas_dif_dma_map(struct hisi_hba *hisi_hba,
+ int *n_elem_dif, struct sas_task *task)
+{
+ struct device *dev = hisi_hba->dev;
+ struct sas_ssp_task *ssp_task;
+ struct scsi_cmnd *scsi_cmnd;
+ int rc;
+
+ if (task->num_scatter) {
+ ssp_task = &task->ssp_task;
+ scsi_cmnd = ssp_task->cmd;
+
+ if (scsi_prot_sg_count(scsi_cmnd)) {
+ *n_elem_dif = dma_map_sg(dev,
+ scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+
+ if (!*n_elem_dif)
+ return -ENOMEM;
+
+ if (*n_elem_dif > HISI_SAS_SGE_DIF_PAGE_CNT) {
+ dev_err(dev, "task prep: n_elem_dif(%d) too large\n",
+ *n_elem_dif);
+ rc = -EINVAL;
+ goto err_out_dif_dma_unmap;
+ }
+ }
+ }
+
+ return 0;
+
+err_out_dif_dma_unmap:
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd), task->data_dir);
+ return rc;
+}
+
static int hisi_sas_task_prep(struct sas_task *task,
struct hisi_sas_dq **dq_pointer,
bool is_tmf, struct hisi_sas_tmf_task *tmf,
struct asd_sas_port *sas_port = device->port;
struct device *dev = hisi_hba->dev;
int dlvry_queue_slot, dlvry_queue, rc, slot_idx;
- int n_elem = 0, n_elem_req = 0, n_elem_resp = 0;
+ int n_elem = 0, n_elem_dif = 0, n_elem_req = 0, n_elem_resp = 0;
struct hisi_sas_dq *dq;
unsigned long flags;
int wr_q_index;
return -ECOMM;
}
- *dq_pointer = dq = sas_dev->dq;
+ if (hisi_hba->reply_map) {
+ int cpu = raw_smp_processor_id();
+ unsigned int dq_index = hisi_hba->reply_map[cpu];
+
+ *dq_pointer = dq = &hisi_hba->dq[dq_index];
+ } else {
+ *dq_pointer = dq = sas_dev->dq;
+ }
port = to_hisi_sas_port(sas_port);
if (port && !port->port_attached) {
if (rc < 0)
goto prep_out;
+ if (!sas_protocol_ata(task->task_proto)) {
+ rc = hisi_sas_dif_dma_map(hisi_hba, &n_elem_dif, task);
+ if (rc < 0)
+ goto err_out_dma_unmap;
+ }
+
if (hisi_hba->hw->slot_index_alloc)
rc = hisi_hba->hw->slot_index_alloc(hisi_hba, device);
else {
rc = hisi_sas_slot_index_alloc(hisi_hba, scsi_cmnd);
}
if (rc < 0)
- goto err_out_dma_unmap;
+ goto err_out_dif_dma_unmap;
slot_idx = rc;
slot = &hisi_hba->slot_info[slot_idx];
}
list_add_tail(&slot->delivery, &dq->list);
- list_add_tail(&slot->entry, &sas_dev->list);
spin_unlock_irqrestore(&dq->lock, flags);
+ spin_lock_irqsave(&sas_dev->lock, flags);
+ list_add_tail(&slot->entry, &sas_dev->list);
+ spin_unlock_irqrestore(&sas_dev->lock, flags);
dlvry_queue = dq->id;
dlvry_queue_slot = wr_q_index;
+ slot->device_id = sas_dev->device_id;
slot->n_elem = n_elem;
+ slot->n_elem_dif = n_elem_dif;
slot->dlvry_queue = dlvry_queue;
slot->dlvry_queue_slot = dlvry_queue_slot;
cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue];
err_out_tag:
hisi_sas_slot_index_free(hisi_hba, slot_idx);
+err_out_dif_dma_unmap:
+ if (!sas_protocol_ata(task->task_proto))
+ hisi_sas_dif_dma_unmap(hisi_hba, task, n_elem_dif);
err_out_dma_unmap:
hisi_sas_dma_unmap(hisi_hba, task, n_elem,
n_elem_req, n_elem_resp);
hisi_hba->devices[i].device_id = i;
sas_dev = &hisi_hba->devices[i];
- sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+ sas_dev->dev_status = HISI_SAS_DEV_INIT;
sas_dev->dev_type = device->dev_type;
sas_dev->hisi_hba = hisi_hba;
sas_dev->sas_device = device;
sas_dev->dq = dq;
+ spin_lock_init(&sas_dev->lock);
INIT_LIST_HEAD(&hisi_hba->devices[i].list);
break;
}
struct hisi_sas_tmf_task tmf_task;
int retry = HISI_SAS_SRST_ATA_DISK_CNT;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ struct sas_phy *local_phy;
switch (device->dev_type) {
case SAS_END_DEVICE:
case SAS_SATA_PM:
case SAS_SATA_PM_PORT:
case SAS_SATA_PENDING:
+ /*
+ * send HARD RESET to clear previous affiliation of
+ * STP target port
+ */
+ local_phy = sas_get_local_phy(device);
+ if (!scsi_is_sas_phy_local(local_phy)) {
+ unsigned long deadline = ata_deadline(jiffies, 20000);
+ struct sata_device *sata_dev = &device->sata_dev;
+ struct ata_host *ata_host = sata_dev->ata_host;
+ struct ata_port_operations *ops = ata_host->ops;
+ struct ata_port *ap = sata_dev->ap;
+ struct ata_link *link;
+ unsigned int classes;
+
+ ata_for_each_link(link, ap, EDGE)
+ rc = ops->hardreset(link, &classes,
+ deadline);
+ }
+ sas_put_local_phy(local_phy);
+ if (rc) {
+ dev_warn(dev, "SATA disk hardreset fail: 0x%x\n",
+ rc);
+ return rc;
+ }
+
while (retry-- > 0) {
rc = hisi_sas_softreset_ata_disk(device);
if (!rc)
rc = hisi_sas_init_device(device);
if (rc)
goto err_out;
+ sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
return 0;
err_out:
struct asd_sas_phy *sas_phy = &phy->sas_phy;
int phy_no = sas_phy->id;
- hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */
+ if (phy->identify.target_port_protocols == SAS_PROTOCOL_SSP)
+ hisi_hba->hw->sl_notify_ssp(hisi_hba, phy_no);
hisi_sas_bytes_dmaed(hisi_hba, phy_no);
}
}
EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event);
+static void hisi_sas_wait_phyup_timedout(struct timer_list *t)
+{
+ struct hisi_sas_phy *phy = from_timer(phy, t, timer);
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct device *dev = hisi_hba->dev;
+ int phy_no = phy->sas_phy.id;
+
+ dev_warn(dev, "phy%d wait phyup timeout, issuing link reset\n", phy_no);
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+}
+
+void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct device *dev = hisi_hba->dev;
+
+ if (!timer_pending(&phy->timer)) {
+ dev_dbg(dev, "phy%d OOB ready\n", phy_no);
+ phy->timer.expires = jiffies + HISI_SAS_WAIT_PHYUP_TIMEOUT * HZ;
+ add_timer(&phy->timer);
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_oob_ready);
+
static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
{
struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]);
spin_lock_init(&phy->lock);
+
+ timer_setup(&phy->timer, hisi_sas_wait_phyup_timedout, 0);
}
static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy)
spin_lock_irqsave(&task->task_state_lock, flags);
task->task_state_flags &=
~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
- task->task_state_flags |= SAS_TASK_STATE_DONE;
+ if (!slot->is_internal && task->task_proto != SAS_PROTOCOL_SMP)
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
spin_unlock_irqrestore(&task->task_state_lock, flags);
}
if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) {
hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_DEV, 0);
+ HISI_SAS_INT_ABT_DEV, 0);
hisi_sas_dereg_device(hisi_hba, device);
return hisi_sas_task_exec(task, gfp_flags, 0, NULL);
}
-static void hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no,
+static int hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no,
struct sas_phy_linkrates *r)
{
struct sas_phy_linkrates _r;
struct asd_sas_phy *sas_phy = &phy->sas_phy;
enum sas_linkrate min, max;
+ if (r->minimum_linkrate > SAS_LINK_RATE_1_5_GBPS)
+ return -EINVAL;
+
if (r->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) {
max = sas_phy->phy->maximum_linkrate;
min = r->minimum_linkrate;
max = r->maximum_linkrate;
min = sas_phy->phy->minimum_linkrate;
} else
- return;
+ return -EINVAL;
_r.maximum_linkrate = max;
_r.minimum_linkrate = min;
msleep(100);
hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, &_r);
hisi_hba->hw->phy_start(hisi_hba, phy_no);
+
+ return 0;
}
static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func,
break;
case PHY_FUNC_SET_LINK_RATE:
- hisi_sas_phy_set_linkrate(hisi_hba, phy_no, funcdata);
- break;
+ return hisi_sas_phy_set_linkrate(hisi_hba, phy_no, funcdata);
case PHY_FUNC_GET_EVENTS:
if (hisi_hba->hw->get_events) {
hisi_hba->hw->get_events(hisi_hba, phy_no);
task->task_done = hisi_sas_task_done;
task->slow_task->timer.function = hisi_sas_tmf_timedout;
- task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ;
+ task->slow_task->timer.expires = jiffies + TASK_TIMEOUT * HZ;
add_timer(&task->slow_task->timer);
res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf);
struct Scsi_Host *shost = hisi_hba->shost;
int rc;
+ if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct)
+ queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+
if (!hisi_hba->hw->soft_reset)
return -1;
task->task_state_flags |= SAS_TASK_STATE_ABORTED;
spin_unlock_irqrestore(&task->task_state_lock, flags);
- sas_dev->dev_status = HISI_SAS_DEV_EH;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
struct scsi_cmnd *cmnd = task->uldd_task;
struct hisi_sas_slot *slot = task->lldd_task;
task->task_proto & SAS_PROTOCOL_STP) {
if (task->dev->dev_type == SAS_SATA_DEV) {
rc = hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_DEV, 0);
+ HISI_SAS_INT_ABT_DEV,
+ 0);
if (rc < 0) {
dev_err(dev, "abort task: internal abort failed\n");
goto out;
struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue];
rc = hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_CMD, tag);
+ HISI_SAS_INT_ABT_CMD, tag);
if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) &&
task->lldd_task) {
/*
int rc = TMF_RESP_FUNC_FAILED;
rc = hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_DEV, 0);
+ HISI_SAS_INT_ABT_DEV, 0);
if (rc < 0) {
dev_err(dev, "abort task set: internal abort rc=%d\n", rc);
return TMF_RESP_FUNC_FAILED;
static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun)
{
- int rc = TMF_RESP_FUNC_FAILED;
struct hisi_sas_tmf_task tmf_task;
+ int rc;
tmf_task.tmf = TMF_CLEAR_ACA;
rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
{
struct sas_phy *local_phy = sas_get_local_phy(device);
- int rc, reset_type = (device->dev_type == SAS_SATA_DEV ||
- (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct sas_ha_struct *sas_ha = &hisi_hba->sha;
struct asd_sas_phy *sas_phy = sas_ha->sas_phy[local_phy->number];
struct hisi_sas_phy *phy = container_of(sas_phy,
struct hisi_sas_phy, sas_phy);
DECLARE_COMPLETION_ONSTACK(phyreset);
+ int rc, reset_type;
if (scsi_is_sas_phy_local(local_phy)) {
phy->in_reset = 1;
phy->reset_completion = &phyreset;
}
+ reset_type = (sas_dev->dev_status == HISI_SAS_DEV_INIT ||
+ !dev_is_sata(device)) ? 1 : 0;
+
rc = sas_phy_reset(local_phy, reset_type);
sas_put_local_phy(local_phy);
/* report PHY down if timed out */
if (!ret)
hisi_sas_phy_down(hisi_hba, sas_phy->id, 0);
- } else
+ } else if (sas_dev->dev_status != HISI_SAS_DEV_INIT) {
+ /*
+ * If in init state, we rely on caller to wait for link to be
+ * ready; otherwise, delay.
+ */
msleep(2000);
+ }
return rc;
}
static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
{
- struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
- int rc = TMF_RESP_FUNC_FAILED;
-
- if (sas_dev->dev_status != HISI_SAS_DEV_EH)
- return TMF_RESP_FUNC_FAILED;
- sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+ int rc;
rc = hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_DEV, 0);
+ HISI_SAS_INT_ABT_DEV, 0);
if (rc < 0) {
dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc);
return TMF_RESP_FUNC_FAILED;
struct device *dev = hisi_hba->dev;
int rc = TMF_RESP_FUNC_FAILED;
- sas_dev->dev_status = HISI_SAS_DEV_EH;
if (dev_is_sata(device)) {
struct sas_phy *phy;
struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
rc = hisi_sas_internal_task_abort(hisi_hba, device,
- HISI_SAS_INT_ABT_DEV, 0);
+ HISI_SAS_INT_ABT_DEV, 0);
if (rc < 0) {
dev_err(dev, "lu_reset: internal abort failed\n");
goto out;
static int
hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id,
struct sas_task *task, int abort_flag,
- int task_tag)
+ int task_tag, struct hisi_sas_dq *dq)
{
struct domain_device *device = task->dev;
struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_sas_slot *slot;
struct asd_sas_port *sas_port = device->port;
struct hisi_sas_cmd_hdr *cmd_hdr_base;
- struct hisi_sas_dq *dq = sas_dev->dq;
int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx;
unsigned long flags, flags_dq = 0;
int wr_q_index;
}
list_add_tail(&slot->delivery, &dq->list);
spin_unlock_irqrestore(&dq->lock, flags_dq);
+ spin_lock_irqsave(&sas_dev->lock, flags);
+ list_add_tail(&slot->entry, &sas_dev->list);
+ spin_unlock_irqrestore(&sas_dev->lock, flags);
dlvry_queue = dq->id;
dlvry_queue_slot = wr_q_index;
+ slot->device_id = sas_dev->device_id;
slot->n_elem = n_elem;
slot->dlvry_queue = dlvry_queue;
slot->dlvry_queue_slot = dlvry_queue_slot;
WRITE_ONCE(slot->ready, 1);
/* send abort command to the chip */
spin_lock_irqsave(&dq->lock, flags);
- list_add_tail(&slot->entry, &sas_dev->list);
hisi_hba->hw->start_delivery(dq);
spin_unlock_irqrestore(&dq->lock, flags);
}
/**
- * hisi_sas_internal_task_abort -- execute an internal
+ * _hisi_sas_internal_task_abort -- execute an internal
* abort command for single IO command or a device
* @hisi_hba: host controller struct
* @device: domain device
* @abort_flag: mode of operation, device or single IO
* @tag: tag of IO to be aborted (only relevant to single
* IO mode)
+ * @dq: delivery queue for this internal abort command
*/
static int
-hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
- struct domain_device *device,
- int abort_flag, int tag)
+_hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device, int abort_flag,
+ int tag, struct hisi_sas_dq *dq)
{
struct sas_task *task;
struct hisi_sas_device *sas_dev = device->lldd_dev;
task->task_proto = device->tproto;
task->task_done = hisi_sas_task_done;
task->slow_task->timer.function = hisi_sas_tmf_timedout;
- task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT*HZ;
+ task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT * HZ;
add_timer(&task->slow_task->timer);
res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id,
- task, abort_flag, tag);
+ task, abort_flag, tag, dq);
if (res) {
del_timer(&task->slow_task->timer);
dev_err(dev, "internal task abort: executing internal task failed: %d\n",
slot->task = NULL;
}
dev_err(dev, "internal task abort: timeout and not done.\n");
+
res = -EIO;
goto exit;
} else
return res;
}
+static int
+hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device,
+ int abort_flag, int tag)
+{
+ struct hisi_sas_slot *slot;
+ struct device *dev = hisi_hba->dev;
+ struct hisi_sas_dq *dq;
+ int i, rc;
+
+ switch (abort_flag) {
+ case HISI_SAS_INT_ABT_CMD:
+ slot = &hisi_hba->slot_info[tag];
+ dq = &hisi_hba->dq[slot->dlvry_queue];
+ return _hisi_sas_internal_task_abort(hisi_hba, device,
+ abort_flag, tag, dq);
+ case HISI_SAS_INT_ABT_DEV:
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ const struct cpumask *mask = cq->pci_irq_mask;
+
+ if (mask && !cpumask_intersects(cpu_online_mask, mask))
+ continue;
+ dq = &hisi_hba->dq[i];
+ rc = _hisi_sas_internal_task_abort(hisi_hba, device,
+ abort_flag, tag,
+ dq);
+ if (rc)
+ return rc;
+ }
+ break;
+ default:
+ dev_err(dev, "Unrecognised internal abort flag (%d)\n",
+ abort_flag);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
{
hisi_sas_port_notify_formed(sas_phy);
static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
{
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct sas_phy *sphy = sas_phy->phy;
+ struct sas_phy_data *d = sphy->hostdata;
+
phy->phy_attached = 0;
phy->phy_type = 0;
phy->port = NULL;
+
+ if (d->enable)
+ sphy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+ else
+ sphy->negotiated_linkrate = SAS_PHY_DISABLED;
}
void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy)
{
int i;
- for (i = 0; i < hisi_hba->queue_count; i++) {
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
struct hisi_sas_cq *cq = &hisi_hba->cq[i];
tasklet_kill(&cq->tasklet);
void hisi_sas_init_mem(struct hisi_hba *hisi_hba)
{
- int i, s, max_command_entries = hisi_hba->hw->max_command_entries;
+ int i, s, j, max_command_entries = hisi_hba->hw->max_command_entries;
+ struct hisi_sas_breakpoint *sata_breakpoint = hisi_hba->sata_breakpoint;
for (i = 0; i < hisi_hba->queue_count; i++) {
struct hisi_sas_cq *cq = &hisi_hba->cq[i];
struct hisi_sas_dq *dq = &hisi_hba->dq[i];
+ struct hisi_sas_cmd_hdr *cmd_hdr = hisi_hba->cmd_hdr[i];
+
+ s = sizeof(struct hisi_sas_cmd_hdr);
+ for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
+ memset(&cmd_hdr[j], 0, s);
- s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
- memset(hisi_hba->cmd_hdr[i], 0, s);
dq->wr_point = 0;
s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
s = max_command_entries * sizeof(struct hisi_sas_breakpoint);
memset(hisi_hba->breakpoint, 0, s);
- s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint);
- memset(hisi_hba->sata_breakpoint, 0, s);
+ s = sizeof(struct hisi_sas_sata_breakpoint);
+ for (j = 0; j < HISI_SAS_MAX_ITCT_ENTRIES; j++)
+ memset(&sata_breakpoint[j], 0, s);
}
EXPORT_SYMBOL_GPL(hisi_sas_init_mem);
-int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
+int hisi_sas_alloc(struct hisi_hba *hisi_hba)
{
struct device *dev = hisi_hba->dev;
int i, j, s, max_command_entries = hisi_hba->hw->max_command_entries;
for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED;
hisi_hba->devices[i].device_id = i;
- hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL;
+ hisi_hba->devices[i].dev_status = HISI_SAS_DEV_INIT;
}
for (i = 0; i < hisi_hba->queue_count; i++) {
s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
hisi_hba->itct = dmam_alloc_coherent(dev, s, &hisi_hba->itct_dma,
- GFP_KERNEL);
+ GFP_KERNEL | __GFP_ZERO);
if (!hisi_hba->itct)
goto err_out;
- memset(hisi_hba->itct, 0, s);
hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries,
sizeof(struct hisi_sas_slot),
/* roundup to avoid overly large block size */
max_command_entries_ru = roundup(max_command_entries, 64);
- sz_slot_buf_ru = roundup(sizeof(struct hisi_sas_slot_buf_table), 64);
+ if (hisi_hba->prot_mask & HISI_SAS_DIX_PROT_MASK)
+ sz_slot_buf_ru = sizeof(struct hisi_sas_slot_dif_buf_table);
+ else
+ sz_slot_buf_ru = sizeof(struct hisi_sas_slot_buf_table);
+ sz_slot_buf_ru = roundup(sz_slot_buf_ru, 64);
s = lcm(max_command_entries_ru, sz_slot_buf_ru);
blk_cnt = (max_command_entries_ru * sz_slot_buf_ru) / s;
slots_per_blk = s / sz_slot_buf_ru;
+
for (i = 0; i < blk_cnt; i++) {
- struct hisi_sas_slot_buf_table *buf;
- dma_addr_t buf_dma;
int slot_index = i * slots_per_blk;
+ dma_addr_t buf_dma;
+ void *buf;
- buf = dmam_alloc_coherent(dev, s, &buf_dma, GFP_KERNEL);
+ buf = dmam_alloc_coherent(dev, s, &buf_dma,
+ GFP_KERNEL | __GFP_ZERO);
if (!buf)
goto err_out;
- memset(buf, 0, s);
for (j = 0; j < slots_per_blk; j++, slot_index++) {
struct hisi_sas_slot *slot;
slot->buf_dma = buf_dma;
slot->idx = slot_index;
- buf++;
- buf_dma += sizeof(*buf);
+ buf += sz_slot_buf_ru;
+ buf_dma += sz_slot_buf_ru;
}
}
struct Scsi_Host *shost;
struct hisi_hba *hisi_hba;
struct device *dev = &pdev->dev;
+ int error;
shost = scsi_host_alloc(hw->sht, sizeof(*hisi_hba));
if (!shost) {
if (hisi_sas_get_fw_info(hisi_hba) < 0)
goto err_out;
- if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) &&
- dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
+ error = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ if (error)
+ error = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+
+ if (error) {
dev_err(dev, "No usable DMA addressing method\n");
goto err_out;
}
goto err_out;
}
- if (hisi_sas_alloc(hisi_hba, shost)) {
+ if (hisi_sas_alloc(hisi_hba)) {
hisi_sas_free(hisi_hba);
goto err_out;
}
}
EXPORT_SYMBOL_GPL(hisi_sas_probe);
+struct dentry *hisi_sas_debugfs_dir;
+
+static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba)
+{
+ int queue_entry_size = hisi_hba->hw->complete_hdr_size;
+ int i;
+
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ memcpy(hisi_hba->debugfs_complete_hdr[i],
+ hisi_hba->complete_hdr[i],
+ HISI_SAS_QUEUE_SLOTS * queue_entry_size);
+}
+
+static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba)
+{
+ int queue_entry_size = sizeof(struct hisi_sas_cmd_hdr);
+ int i;
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr;
+ int j;
+
+ debugfs_cmd_hdr = hisi_hba->debugfs_cmd_hdr[i];
+ cmd_hdr = hisi_hba->cmd_hdr[i];
+
+ for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
+ memcpy(&debugfs_cmd_hdr[j], &cmd_hdr[j],
+ queue_entry_size);
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
+{
+ const struct hisi_sas_debugfs_reg *port =
+ hisi_hba->hw->debugfs_reg_port;
+ int i, phy_cnt;
+ u32 offset;
+ u32 *databuf;
+
+ for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) {
+ databuf = (u32 *)hisi_hba->debugfs_port_reg[phy_cnt];
+ for (i = 0; i < port->count; i++, databuf++) {
+ offset = port->base_off + 4 * i;
+ *databuf = port->read_port_reg(hisi_hba, phy_cnt,
+ offset);
+ }
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
+{
+ u32 *databuf = (u32 *)hisi_hba->debugfs_global_reg;
+ const struct hisi_sas_debugfs_reg *global =
+ hisi_hba->hw->debugfs_reg_global;
+ int i;
+
+ for (i = 0; i < global->count; i++, databuf++)
+ *databuf = global->read_global_reg(hisi_hba, 4 * i);
+}
+
+static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
+{
+ void *databuf = hisi_hba->debugfs_itct;
+ struct hisi_sas_itct *itct;
+ int i;
+
+ itct = hisi_hba->itct;
+
+ for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) {
+ memcpy(databuf, itct, sizeof(struct hisi_sas_itct));
+ databuf += sizeof(struct hisi_sas_itct);
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba)
+{
+ int max_command_entries = hisi_hba->hw->max_command_entries;
+ void *databuf = hisi_hba->debugfs_iost;
+ struct hisi_sas_iost *iost;
+ int i;
+
+ iost = hisi_hba->iost;
+
+ for (i = 0; i < max_command_entries; i++, iost++) {
+ memcpy(databuf, iost, sizeof(struct hisi_sas_iost));
+ databuf += sizeof(struct hisi_sas_iost);
+ }
+}
+
+static const char *
+hisi_sas_debugfs_to_reg_name(int off, int base_off,
+ const struct hisi_sas_debugfs_reg_lu *lu)
+{
+ for (; lu->name; lu++) {
+ if (off == lu->off - base_off)
+ return lu->name;
+ }
+
+ return NULL;
+}
+
+static void hisi_sas_debugfs_print_reg(u32 *regs_val, const void *ptr,
+ struct seq_file *s)
+{
+ const struct hisi_sas_debugfs_reg *reg = ptr;
+ int i;
+
+ for (i = 0; i < reg->count; i++) {
+ int off = i * 4;
+ const char *name;
+
+ name = hisi_sas_debugfs_to_reg_name(off, reg->base_off,
+ reg->lu);
+
+ if (name)
+ seq_printf(s, "0x%08x 0x%08x %s\n", off,
+ regs_val[i], name);
+ else
+ seq_printf(s, "0x%08x 0x%08x\n", off,
+ regs_val[i]);
+ }
+}
+
+static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *reg_global = hw->debugfs_reg_global;
+
+ hisi_sas_debugfs_print_reg(hisi_hba->debugfs_global_reg,
+ reg_global, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_global_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_global_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_global_fops = {
+ .open = hisi_sas_debugfs_global_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_phy *phy = s->private;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *reg_port = hw->debugfs_reg_port;
+ u32 *databuf = hisi_hba->debugfs_port_reg[phy->sas_phy.id];
+
+ hisi_sas_debugfs_print_reg(databuf, reg_port, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_port_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_port_fops = {
+ .open = hisi_sas_debugfs_port_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_show_row_64(struct seq_file *s, int index,
+ int sz, __le64 *ptr)
+{
+ int i;
+
+ /* completion header size not fixed per HW version */
+ seq_printf(s, "index %04d:\n\t", index);
+ for (i = 1; i <= sz / 8; i++, ptr++) {
+ seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr));
+ if (!(i % 2))
+ seq_puts(s, "\n\t");
+ }
+
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static int hisi_sas_show_row_32(struct seq_file *s, int index,
+ int sz, __le32 *ptr)
+{
+ int i;
+
+ /* completion header size not fixed per HW version */
+ seq_printf(s, "index %04d:\n\t", index);
+ for (i = 1; i <= sz / 4; i++, ptr++) {
+ seq_printf(s, " 0x%08x", le32_to_cpu(*ptr));
+ if (!(i % 4))
+ seq_puts(s, "\n\t");
+ }
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static int hisi_sas_cq_show_slot(struct seq_file *s, int slot, void *cq_ptr)
+{
+ struct hisi_sas_cq *cq = cq_ptr;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ void *complete_queue = hisi_hba->debugfs_complete_hdr[cq->id];
+ __le32 *complete_hdr = complete_queue +
+ (hisi_hba->hw->complete_hdr_size * slot);
+
+ return hisi_sas_show_row_32(s, slot,
+ hisi_hba->hw->complete_hdr_size,
+ complete_hdr);
+}
+
+static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_cq *cq = s->private;
+ int slot, ret;
+
+ for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) {
+ ret = hisi_sas_cq_show_slot(s, slot, cq);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_cq_fops = {
+ .open = hisi_sas_debugfs_cq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr)
+{
+ struct hisi_sas_dq *dq = dq_ptr;
+ struct hisi_hba *hisi_hba = dq->hisi_hba;
+ void *cmd_queue = hisi_hba->debugfs_cmd_hdr[dq->id];
+ __le32 *cmd_hdr = cmd_queue +
+ sizeof(struct hisi_sas_cmd_hdr) * slot;
+
+ return hisi_sas_show_row_32(s, slot, sizeof(struct hisi_sas_cmd_hdr),
+ cmd_hdr);
+}
+
+static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p)
+{
+ int slot, ret;
+
+ for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) {
+ ret = hisi_sas_dq_show_slot(s, slot, s->private);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_dq_fops = {
+ .open = hisi_sas_debugfs_dq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ struct hisi_sas_iost *debugfs_iost = hisi_hba->debugfs_iost;
+ int i, ret, max_command_entries = hisi_hba->hw->max_command_entries;
+ __le64 *iost = &debugfs_iost->qw0;
+
+ for (i = 0; i < max_command_entries; i++, debugfs_iost++) {
+ ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_iost),
+ iost);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_iost_fops = {
+ .open = hisi_sas_debugfs_iost_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p)
+{
+ int i, ret;
+ struct hisi_hba *hisi_hba = s->private;
+ struct hisi_sas_itct *debugfs_itct = hisi_hba->debugfs_itct;
+ __le64 *itct = &debugfs_itct->qw0;
+
+ for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, debugfs_itct++) {
+ ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_itct),
+ itct);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_itct_fops = {
+ .open = hisi_sas_debugfs_itct_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
+{
+ struct dentry *dump_dentry;
+ struct dentry *dentry;
+ char name[256];
+ int p;
+ int c;
+ int d;
+
+ /* Create dump dir inside device dir */
+ dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir);
+ hisi_hba->debugfs_dump_dentry = dump_dentry;
+
+ debugfs_create_file("global", 0400, dump_dentry, hisi_hba,
+ &hisi_sas_debugfs_global_fops);
+
+ /* Create port dir and files */
+ dentry = debugfs_create_dir("port", dump_dentry);
+ for (p = 0; p < hisi_hba->n_phy; p++) {
+ snprintf(name, 256, "%d", p);
+
+ debugfs_create_file(name, 0400, dentry, &hisi_hba->phy[p],
+ &hisi_sas_debugfs_port_fops);
+ }
+
+ /* Create CQ dir and files */
+ dentry = debugfs_create_dir("cq", dump_dentry);
+ for (c = 0; c < hisi_hba->queue_count; c++) {
+ snprintf(name, 256, "%d", c);
+
+ debugfs_create_file(name, 0400, dentry, &hisi_hba->cq[c],
+ &hisi_sas_debugfs_cq_fops);
+ }
+
+ /* Create DQ dir and files */
+ dentry = debugfs_create_dir("dq", dump_dentry);
+ for (d = 0; d < hisi_hba->queue_count; d++) {
+ snprintf(name, 256, "%d", d);
+
+ debugfs_create_file(name, 0400, dentry, &hisi_hba->dq[d],
+ &hisi_sas_debugfs_dq_fops);
+ }
+
+ debugfs_create_file("iost", 0400, dump_dentry, hisi_hba,
+ &hisi_sas_debugfs_iost_fops);
+
+ debugfs_create_file("itct", 0400, dump_dentry, hisi_hba,
+ &hisi_sas_debugfs_itct_fops);
+
+ return;
+}
+
+static void hisi_sas_debugfs_snapshot_regs(struct hisi_hba *hisi_hba)
+{
+ hisi_hba->hw->snapshot_prepare(hisi_hba);
+
+ hisi_sas_debugfs_snapshot_global_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_port_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_cq_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_dq_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_itct_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_iost_reg(hisi_hba);
+
+ hisi_sas_debugfs_create_files(hisi_hba);
+
+ hisi_hba->hw->snapshot_restore(hisi_hba);
+}
+
+static ssize_t hisi_sas_debugfs_trigger_dump_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hisi_hba *hisi_hba = file->f_inode->i_private;
+ char buf[8];
+
+ /* A bit racy, but don't care too much since it's only debugfs */
+ if (hisi_hba->debugfs_snapshot)
+ return -EFAULT;
+
+ if (count > 8)
+ return -EFAULT;
+
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+
+ if (buf[0] != '1')
+ return -EFAULT;
+
+ queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+
+ return count;
+}
+
+static const struct file_operations hisi_sas_debugfs_trigger_dump_fops = {
+ .write = &hisi_sas_debugfs_trigger_dump_write,
+ .owner = THIS_MODULE,
+};
+
+void hisi_sas_debugfs_work_handler(struct work_struct *work)
+{
+ struct hisi_hba *hisi_hba =
+ container_of(work, struct hisi_hba, debugfs_work);
+
+ if (hisi_hba->debugfs_snapshot)
+ return;
+ hisi_hba->debugfs_snapshot = true;
+
+ hisi_sas_debugfs_snapshot_regs(hisi_hba);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler);
+
+void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
+{
+ int max_command_entries = hisi_hba->hw->max_command_entries;
+ struct device *dev = hisi_hba->dev;
+ int p, i, c, d;
+ size_t sz;
+
+ hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev),
+ hisi_sas_debugfs_dir);
+ debugfs_create_file("trigger_dump", 0600,
+ hisi_hba->debugfs_dir,
+ hisi_hba,
+ &hisi_sas_debugfs_trigger_dump_fops);
+
+ /* Alloc buffer for global */
+ sz = hisi_hba->hw->debugfs_reg_global->count * 4;
+ hisi_hba->debugfs_global_reg =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+
+ if (!hisi_hba->debugfs_global_reg)
+ goto fail_global;
+
+ /* Alloc buffer for port */
+ sz = hisi_hba->hw->debugfs_reg_port->count * 4;
+ for (p = 0; p < hisi_hba->n_phy; p++) {
+ hisi_hba->debugfs_port_reg[p] =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+
+ if (!hisi_hba->debugfs_port_reg[p])
+ goto fail_port;
+ }
+
+ /* Alloc buffer for cq */
+ sz = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+ for (c = 0; c < hisi_hba->queue_count; c++) {
+ hisi_hba->debugfs_complete_hdr[c] =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+
+ if (!hisi_hba->debugfs_complete_hdr[c])
+ goto fail_cq;
+ }
+
+ /* Alloc buffer for dq */
+ sz = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+ for (d = 0; d < hisi_hba->queue_count; d++) {
+ hisi_hba->debugfs_cmd_hdr[d] =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+
+ if (!hisi_hba->debugfs_cmd_hdr[d])
+ goto fail_iost_dq;
+ }
+
+ /* Alloc buffer for iost */
+ sz = max_command_entries * sizeof(struct hisi_sas_iost);
+
+ hisi_hba->debugfs_iost = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_iost)
+ goto fail_iost_dq;
+
+ /* Alloc buffer for itct */
+ /* New memory allocation must be locate before itct */
+ sz = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+
+ hisi_hba->debugfs_itct = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct)
+ goto fail_itct;
+
+ return;
+fail_itct:
+ devm_kfree(dev, hisi_hba->debugfs_iost);
+fail_iost_dq:
+ for (i = 0; i < d; i++)
+ devm_kfree(dev, hisi_hba->debugfs_cmd_hdr[i]);
+fail_cq:
+ for (i = 0; i < c; i++)
+ devm_kfree(dev, hisi_hba->debugfs_complete_hdr[i]);
+fail_port:
+ for (i = 0; i < p; i++)
+ devm_kfree(dev, hisi_hba->debugfs_port_reg[i]);
+ devm_kfree(dev, hisi_hba->debugfs_global_reg);
+fail_global:
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+ dev_dbg(dev, "failed to init debugfs!\n");
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_init);
+
+void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba)
+{
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_exit);
+
int hisi_sas_remove(struct platform_device *pdev)
{
struct sas_ha_struct *sha = platform_get_drvdata(pdev);
}
EXPORT_SYMBOL_GPL(hisi_sas_remove);
+bool hisi_sas_debugfs_enable;
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_enable);
+module_param_named(debugfs_enable, hisi_sas_debugfs_enable, bool, 0444);
+MODULE_PARM_DESC(hisi_sas_debugfs_enable, "Enable driver debugfs (default disabled)");
+
static __init int hisi_sas_init(void)
{
hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops);
if (!hisi_sas_stt)
return -ENOMEM;
+ if (hisi_sas_debugfs_enable)
+ hisi_sas_debugfs_dir = debugfs_create_dir("hisi_sas", NULL);
+
return 0;
}
static __exit void hisi_sas_exit(void)
{
sas_release_transport(hisi_sas_stt);
+
+ debugfs_remove(hisi_sas_debugfs_dir);
}
module_init(hisi_sas_init);
projects / linux-2.6-microblaze.git / blobdiff