scsi: pm8001: Introduce ccb alloc/free helpers

Introduce the pm8001_ccb_alloc() and pm8001_ccb_free() helpers to replace
the typical code patterns:

	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
	if (res)
		...
	ccb = &pm8001_ha->ccb_info[ccb_tag];
	ccb->device = pm8001_ha_dev;
	ccb->ccb_tag = ccb_tag;
	ccb->task = task;
	ccb->n_elem = 0;

and

	ccb->task = NULL;
	ccb->ccb_tag = PM8001_INVALID_TAG;
	pm8001_tag_free(pm8001_ha, tag);

With the simpler function calls:

	ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
	if (!ccb)
		...

and

	pm8001_ccb_free(pm8001_ha, ccb);

The pm8001_ccb_alloc() helper ensures that all fields of the ccb info
structure for the newly allocated tag are all initialized, except the
buf_prd field. The pm8001_ccb_free() helper clears the initialized fields
and the ccb tag to ensure that iteration over the adapter ccb_info array
detects ccbs that are in use.

All call site of the pm8001_tag_alloc() function that use a ccb info
associated with an allocated tag are converted to use the new helpers.

Link: https://lore.kernel.org/r/20220220031810.738362-27-damien.lemoal@opensource.wdc.com
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Damien Le Moal 2022-02-20 12:18:05 +09:00 committed by Martin K. Petersen
parent bf67e693fc
commit 99df0edb5a
4 changed files with 166 additions and 171 deletions

View File

@ -1710,7 +1710,7 @@ void pm8001_work_fn(struct work_struct *work)
pm8001_dev->dcompletion = NULL;
}
complete(pm8001_ha->nvmd_completion);
pm8001_tag_free(pm8001_ha, ccb->ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
}
/* Deregister all the device ids */
@ -1749,8 +1749,6 @@ int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *pm8001_ha_dev)
{
int res;
u32 ccb_tag;
struct pm8001_ccb_info *ccb;
struct sas_task *task = NULL;
struct task_abort_req task_abort;
@ -1771,32 +1769,25 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
task->task_done = pm8001_task_done;
res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
if (res) {
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
if (!ccb) {
sas_free_task(task);
return;
}
ccb = &pm8001_ha->ccb_info[ccb_tag];
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
ccb->n_elem = 0;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
memset(&task_abort, 0, sizeof(task_abort));
task_abort.abort_all = cpu_to_le32(1);
task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
task_abort.tag = cpu_to_le32(ccb_tag);
task_abort.tag = cpu_to_le32(ccb->ccb_tag);
ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
sizeof(task_abort), 0);
if (ret) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
}
static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
@ -1804,7 +1795,6 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
{
struct sata_start_req sata_cmd;
int res;
u32 ccb_tag;
struct pm8001_ccb_info *ccb;
struct sas_task *task = NULL;
struct host_to_dev_fis fis;
@ -1820,20 +1810,13 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
}
task->task_done = pm8001_task_done;
res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
if (res) {
sas_free_task(task);
pm8001_dbg(pm8001_ha, FAIL, "cannot allocate tag !!!\n");
return;
}
/* allocate domain device by ourselves as libsas
* is not going to provide any
*/
/*
* Allocate domain device by ourselves as libsas is not going to
* provide any.
*/
dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
if (!dev) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_dbg(pm8001_ha, FAIL,
"Domain device cannot be allocated\n");
return;
@ -1841,11 +1824,13 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
task->dev = dev;
task->dev->lldd_dev = pm8001_ha_dev;
ccb = &pm8001_ha->ccb_info[ccb_tag];
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
ccb->n_elem = 0;
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
if (!ccb) {
sas_free_task(task);
kfree(dev);
return;
}
pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
@ -1860,7 +1845,7 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
fis.lbal = 0x10;
fis.sector_count = 0x1;
sata_cmd.tag = cpu_to_le32(ccb_tag);
sata_cmd.tag = cpu_to_le32(ccb->ccb_tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
sata_cmd.ncqtag_atap_dir_m = cpu_to_le32((0x1 << 7) | (0x5 << 9));
memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
@ -1869,7 +1854,7 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
sizeof(sata_cmd), 0);
if (res) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
kfree(dev);
}
}
@ -3038,12 +3023,12 @@ void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
u32 device_id = le32_to_cpu(pPayload->device_id);
u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
pm8001_dbg(pm8001_ha, MSG, "Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
pm8001_dbg(pm8001_ha, MSG,
"Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
device_id, pds, nds, status);
complete(pm8001_dev->setds_completion);
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
@ -3053,15 +3038,14 @@ void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
u32 tag = le32_to_cpu(pPayload->tag);
struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
complete(pm8001_ha->nvmd_completion);
pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
if ((dlen_status & NVMD_STAT) != 0) {
pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error %x\n",
dlen_status);
}
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
void
@ -3086,9 +3070,7 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
/* We should free tag during failure also, the tag is not being
* freed by requesting path anywhere.
*/
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
return;
}
if (ir_tds_bn_dps_das_nvm & IPMode) {
@ -3132,9 +3114,7 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
*/
complete(pm8001_ha->nvmd_completion);
pm8001_dbg(pm8001_ha, MSG, "Get nvmd data complete!\n");
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
@ -3545,9 +3525,7 @@ int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
break;
}
complete(pm8001_dev->dcompletion);
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, htag);
pm8001_ccb_free(pm8001_ha, ccb);
return 0;
}
@ -3580,6 +3558,7 @@ int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
(struct fw_flash_Update_resp *)(piomb + 4);
u32 tag = le32_to_cpu(ppayload->tag);
struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
status = le32_to_cpu(ppayload->status);
switch (status) {
case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
@ -3617,9 +3596,7 @@ int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
break;
}
kfree(ccb->fw_control_context);
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
complete(pm8001_ha->nvmd_completion);
return 0;
}
@ -4412,7 +4389,7 @@ static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
u32 stp_sspsmp_sata = 0x4;
struct inbound_queue_table *circularQ;
u32 linkrate, phy_id;
int rc, tag = 0xdeadbeef;
int rc;
struct pm8001_ccb_info *ccb;
u8 retryFlag = 0x1;
u16 firstBurstSize = 0;
@ -4423,13 +4400,11 @@ static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
circularQ = &pm8001_ha->inbnd_q_tbl[0];
memset(&payload, 0, sizeof(payload));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
return rc;
ccb = &pm8001_ha->ccb_info[tag];
ccb->device = pm8001_dev;
ccb->ccb_tag = tag;
payload.tag = cpu_to_le32(tag);
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
if (!ccb)
return -SAS_QUEUE_FULL;
payload.tag = cpu_to_le32(ccb->ccb_tag);
if (flag == 1)
stp_sspsmp_sata = 0x02; /*direct attached sata */
else {
@ -4459,7 +4434,7 @@ static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
sizeof(payload), 0);
if (rc)
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
return rc;
}
@ -4624,7 +4599,6 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
u32 opc = OPC_INB_GET_NVMD_DATA;
u32 nvmd_type;
int rc;
u32 tag;
struct pm8001_ccb_info *ccb;
struct inbound_queue_table *circularQ;
struct get_nvm_data_req nvmd_req;
@ -4639,15 +4613,15 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
fw_control_context->len = ioctl_payload->rd_length;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
memset(&nvmd_req, 0, sizeof(nvmd_req));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc) {
ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
if (!ccb) {
kfree(fw_control_context);
return rc;
return -SAS_QUEUE_FULL;
}
ccb = &pm8001_ha->ccb_info[tag];
ccb->ccb_tag = tag;
ccb->fw_control_context = fw_control_context;
nvmd_req.tag = cpu_to_le32(tag);
nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
switch (nvmd_type) {
case TWI_DEVICE: {
@ -4708,7 +4682,7 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
sizeof(nvmd_req), 0);
if (rc) {
kfree(fw_control_context);
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
return rc;
}
@ -4719,7 +4693,6 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
u32 opc = OPC_INB_SET_NVMD_DATA;
u32 nvmd_type;
int rc;
u32 tag;
struct pm8001_ccb_info *ccb;
struct inbound_queue_table *circularQ;
struct set_nvm_data_req nvmd_req;
@ -4735,15 +4708,15 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
&ioctl_payload->func_specific,
ioctl_payload->wr_length);
memset(&nvmd_req, 0, sizeof(nvmd_req));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc) {
ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
if (!ccb) {
kfree(fw_control_context);
return -EBUSY;
return -SAS_QUEUE_FULL;
}
ccb = &pm8001_ha->ccb_info[tag];
ccb->fw_control_context = fw_control_context;
ccb->ccb_tag = tag;
nvmd_req.tag = cpu_to_le32(tag);
nvmd_req.tag = cpu_to_le32(ccb->ccb_tag);
switch (nvmd_type) {
case TWI_DEVICE: {
u32 twi_addr, twi_page_size;
@ -4793,7 +4766,7 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
sizeof(nvmd_req), 0);
if (rc) {
kfree(fw_control_context);
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
return rc;
}
@ -4839,7 +4812,6 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
struct fw_control_info *fw_control;
struct fw_control_ex *fw_control_context;
int rc;
u32 tag;
struct pm8001_ccb_info *ccb;
void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
@ -4863,19 +4835,19 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
fw_control_context->virtAddr = buffer;
fw_control_context->phys_addr = phys_addr;
fw_control_context->len = fw_control->len;
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc) {
ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
if (!ccb) {
kfree(fw_control_context);
return -EBUSY;
return -SAS_QUEUE_FULL;
}
ccb = &pm8001_ha->ccb_info[tag];
ccb->fw_control_context = fw_control_context;
ccb->ccb_tag = tag;
rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
tag);
ccb->ccb_tag);
if (rc) {
kfree(fw_control_context);
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
return rc;
@ -4967,26 +4939,25 @@ pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
struct inbound_queue_table *circularQ;
struct pm8001_ccb_info *ccb;
int rc;
u32 tag;
u32 opc = OPC_INB_SET_DEVICE_STATE;
memset(&payload, 0, sizeof(payload));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
return -1;
ccb = &pm8001_ha->ccb_info[tag];
ccb->ccb_tag = tag;
ccb->device = pm8001_dev;
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
if (!ccb)
return -SAS_QUEUE_FULL;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
payload.tag = cpu_to_le32(tag);
payload.tag = cpu_to_le32(ccb->ccb_tag);
payload.device_id = cpu_to_le32(pm8001_dev->device_id);
payload.nds = cpu_to_le32(state);
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
sizeof(payload), 0);
if (rc)
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
return rc;
}
static int
@ -4996,25 +4967,26 @@ pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
struct inbound_queue_table *circularQ;
struct pm8001_ccb_info *ccb;
int rc;
u32 tag;
u32 opc = OPC_INB_SAS_RE_INITIALIZE;
memset(&payload, 0, sizeof(payload));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
return -ENOMEM;
ccb = &pm8001_ha->ccb_info[tag];
ccb->ccb_tag = tag;
ccb = pm8001_ccb_alloc(pm8001_ha, NULL, NULL);
if (!ccb)
return -SAS_QUEUE_FULL;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
payload.tag = cpu_to_le32(tag);
payload.tag = cpu_to_le32(ccb->ccb_tag);
payload.SSAHOLT = cpu_to_le32(0xd << 25);
payload.sata_hol_tmo = cpu_to_le32(80);
payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
sizeof(payload), 0);
if (rc)
pm8001_tag_free(pm8001_ha, tag);
return rc;
pm8001_ccb_free(pm8001_ha, ccb);
return rc;
}
const struct pm8001_dispatch pm8001_8001_dispatch = {

View File

@ -74,7 +74,7 @@ void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag)
* @pm8001_ha: our hba struct
* @tag_out: the found empty tag .
*/
inline int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out)
int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out)
{
unsigned int tag;
void *bitmap = pm8001_ha->tags;
@ -381,7 +381,7 @@ int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
struct pm8001_port *port = NULL;
struct sas_task *t = task;
struct pm8001_ccb_info *ccb;
u32 tag = 0xdeadbeef, rc = 0, n_elem = 0;
u32 rc = 0, n_elem = 0;
unsigned long flags = 0;
enum sas_protocol task_proto = t->task_proto;
struct sas_tmf_task *tmf = task->tmf;
@ -427,10 +427,12 @@ int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
continue;
}
}
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, t);
if (!ccb) {
rc = -SAS_QUEUE_FULL;
goto err_out;
ccb = &pm8001_ha->ccb_info[tag];
}
if (!sas_protocol_ata(task_proto)) {
if (t->num_scatter) {
@ -440,7 +442,7 @@ int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
t->data_dir);
if (!n_elem) {
rc = -ENOMEM;
goto err_out_tag;
goto err_out_ccb;
}
}
} else {
@ -449,9 +451,7 @@ int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
t->lldd_task = ccb;
ccb->n_elem = n_elem;
ccb->ccb_tag = tag;
ccb->task = t;
ccb->device = pm8001_dev;
switch (task_proto) {
case SAS_PROTOCOL_SMP:
atomic_inc(&pm8001_dev->running_req);
@ -480,15 +480,15 @@ int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
if (rc) {
pm8001_dbg(pm8001_ha, IO, "rc is %x\n", rc);
atomic_dec(&pm8001_dev->running_req);
goto err_out_tag;
goto err_out_ccb;
}
/* TODO: select normal or high priority */
} while (0);
rc = 0;
goto out_done;
err_out_tag:
pm8001_tag_free(pm8001_ha, tag);
err_out_ccb:
pm8001_ccb_free(pm8001_ha, ccb);
err_out:
dev_printk(KERN_ERR, pm8001_ha->dev, "pm8001 exec failed[%d]!\n", rc);
if (!sas_protocol_ata(task_proto))
@ -548,10 +548,7 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
}
task->lldd_task = NULL;
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
ccb->open_retry = 0;
pm8001_tag_free(pm8001_ha, ccb_idx);
pm8001_ccb_free(pm8001_ha, ccb);
}
/**
@ -707,7 +704,6 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
u32 task_tag)
{
int res, retry;
u32 ccb_tag;
struct pm8001_ccb_info *ccb;
struct sas_task *task = NULL;
@ -724,23 +720,19 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
jiffies + PM8001_TASK_TIMEOUT * HZ;
add_timer(&task->slow_task->timer);
res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
if (res)
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, task);
if (!ccb) {
res = -SAS_QUEUE_FULL;
break;
ccb = &pm8001_ha->ccb_info[ccb_tag];
ccb->device = pm8001_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
ccb->n_elem = 0;
}
res = PM8001_CHIP_DISP->task_abort(pm8001_ha, pm8001_dev, flag,
task_tag, ccb_tag);
task_tag, ccb->ccb_tag);
if (res) {
del_timer(&task->slow_task->timer);
pm8001_dbg(pm8001_ha, FAIL,
"Executing internal task failed\n");
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
break;
}

View File

@ -734,6 +734,53 @@ extern const struct attribute_group *pm8001_host_groups[];
#define PM8001_INVALID_TAG ((u32)-1)
/*
* Allocate a new tag and return the corresponding ccb after initializing it.
*/
static inline struct pm8001_ccb_info *
pm8001_ccb_alloc(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *dev, struct sas_task *task)
{
struct pm8001_ccb_info *ccb;
u32 tag;
if (pm8001_tag_alloc(pm8001_ha, &tag)) {
pm8001_dbg(pm8001_ha, FAIL, "Failed to allocate a tag\n");
return NULL;
}
ccb = &pm8001_ha->ccb_info[tag];
ccb->task = task;
ccb->n_elem = 0;
ccb->ccb_tag = tag;
ccb->device = dev;
ccb->fw_control_context = NULL;
ccb->open_retry = 0;
return ccb;
}
/*
* Free the tag of an initialized ccb.
*/
static inline void pm8001_ccb_free(struct pm8001_hba_info *pm8001_ha,
struct pm8001_ccb_info *ccb)
{
u32 tag = ccb->ccb_tag;
/*
* Cleanup the ccb to make sure that a manual scan of the adapter
* ccb_info array can detect ccb's that are in use.
* C.f. pm8001_open_reject_retry()
*/
ccb->task = NULL;
ccb->ccb_tag = PM8001_INVALID_TAG;
ccb->device = NULL;
ccb->fw_control_context = NULL;
pm8001_tag_free(pm8001_ha, tag);
}
static inline void
pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
struct sas_task *task, struct pm8001_ccb_info *ccb,

View File

@ -1767,8 +1767,6 @@ pm80xx_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
static void pm80xx_send_abort_all(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *pm8001_ha_dev)
{
int res;
u32 ccb_tag;
struct pm8001_ccb_info *ccb;
struct sas_task *task = NULL;
struct task_abort_req task_abort;
@ -1790,31 +1788,25 @@ static void pm80xx_send_abort_all(struct pm8001_hba_info *pm8001_ha,
task->task_done = pm8001_task_done;
res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
if (res) {
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
if (!ccb) {
sas_free_task(task);
return;
}
ccb = &pm8001_ha->ccb_info[ccb_tag];
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
ccb->n_elem = 0;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
memset(&task_abort, 0, sizeof(task_abort));
task_abort.abort_all = cpu_to_le32(1);
task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
task_abort.tag = cpu_to_le32(ccb_tag);
task_abort.tag = cpu_to_le32(ccb->ccb_tag);
ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
sizeof(task_abort), 0);
pm8001_dbg(pm8001_ha, FAIL, "Executing abort task end\n");
if (ret) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
}
}
@ -1823,7 +1815,6 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
{
struct sata_start_req sata_cmd;
int res;
u32 ccb_tag;
struct pm8001_ccb_info *ccb;
struct sas_task *task = NULL;
struct host_to_dev_fis fis;
@ -1839,20 +1830,13 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
}
task->task_done = pm8001_task_done;
res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
if (res) {
sas_free_task(task);
pm8001_dbg(pm8001_ha, FAIL, "cannot allocate tag !!!\n");
return;
}
/* allocate domain device by ourselves as libsas
* is not going to provide any
*/
/*
* Allocate domain device by ourselves as libsas is not going to
* provide any.
*/
dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
if (!dev) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_dbg(pm8001_ha, FAIL,
"Domain device cannot be allocated\n");
return;
@ -1861,11 +1845,13 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
task->dev = dev;
task->dev->lldd_dev = pm8001_ha_dev;
ccb = &pm8001_ha->ccb_info[ccb_tag];
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
ccb->n_elem = 0;
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_ha_dev, task);
if (!ccb) {
sas_free_task(task);
kfree(dev);
return;
}
pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
@ -1880,7 +1866,7 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
fis.lbal = 0x10;
fis.sector_count = 0x1;
sata_cmd.tag = cpu_to_le32(ccb_tag);
sata_cmd.tag = cpu_to_le32(ccb->ccb_tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
sata_cmd.ncqtag_atap_dir_m_dad = cpu_to_le32(((0x1 << 7) | (0x5 << 9)));
memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
@ -1890,7 +1876,7 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
pm8001_dbg(pm8001_ha, FAIL, "Executing read log end\n");
if (res) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
pm8001_ccb_free(pm8001_ha, ccb);
kfree(dev);
}
}
@ -4834,7 +4820,7 @@ static int pm80xx_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
u32 stp_sspsmp_sata = 0x4;
struct inbound_queue_table *circularQ;
u32 linkrate, phy_id;
int rc, tag = 0xdeadbeef;
int rc;
struct pm8001_ccb_info *ccb;
u8 retryFlag = 0x1;
u16 firstBurstSize = 0;
@ -4845,13 +4831,11 @@ static int pm80xx_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
circularQ = &pm8001_ha->inbnd_q_tbl[0];
memset(&payload, 0, sizeof(payload));
rc = pm8001_tag_alloc(pm8001_ha, &tag);
if (rc)
return rc;
ccb = &pm8001_ha->ccb_info[tag];
ccb->device = pm8001_dev;
ccb->ccb_tag = tag;
payload.tag = cpu_to_le32(tag);
ccb = pm8001_ccb_alloc(pm8001_ha, pm8001_dev, NULL);
if (!ccb)
return -SAS_QUEUE_FULL;
payload.tag = cpu_to_le32(ccb->ccb_tag);
if (flag == 1) {
stp_sspsmp_sata = 0x02; /*direct attached sata */
@ -4888,7 +4872,7 @@ static int pm80xx_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
sizeof(payload), 0);
if (rc)
pm8001_tag_free(pm8001_ha, tag);
pm8001_ccb_free(pm8001_ha, ccb);
return rc;
}