hisi_sas: add v2 code to send smp command
Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
parent
8c36e31d6e
commit
c2d8939275
|
@ -744,6 +744,76 @@ static int prep_prd_sge_v2_hw(struct hisi_hba *hisi_hba,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int prep_smp_v2_hw(struct hisi_hba *hisi_hba,
|
||||
struct hisi_sas_slot *slot)
|
||||
{
|
||||
struct sas_task *task = slot->task;
|
||||
struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
|
||||
struct domain_device *device = task->dev;
|
||||
struct device *dev = &hisi_hba->pdev->dev;
|
||||
struct hisi_sas_port *port = slot->port;
|
||||
struct scatterlist *sg_req, *sg_resp;
|
||||
struct hisi_sas_device *sas_dev = device->lldd_dev;
|
||||
dma_addr_t req_dma_addr;
|
||||
unsigned int req_len, resp_len;
|
||||
int elem, rc;
|
||||
|
||||
/*
|
||||
* DMA-map SMP request, response buffers
|
||||
*/
|
||||
/* req */
|
||||
sg_req = &task->smp_task.smp_req;
|
||||
elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE);
|
||||
if (!elem)
|
||||
return -ENOMEM;
|
||||
req_len = sg_dma_len(sg_req);
|
||||
req_dma_addr = sg_dma_address(sg_req);
|
||||
|
||||
/* resp */
|
||||
sg_resp = &task->smp_task.smp_resp;
|
||||
elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE);
|
||||
if (!elem) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out_req;
|
||||
}
|
||||
resp_len = sg_dma_len(sg_resp);
|
||||
if ((req_len & 0x3) || (resp_len & 0x3)) {
|
||||
rc = -EINVAL;
|
||||
goto err_out_resp;
|
||||
}
|
||||
|
||||
/* create header */
|
||||
/* dw0 */
|
||||
hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
|
||||
(1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
|
||||
(2 << CMD_HDR_CMD_OFF)); /* smp */
|
||||
|
||||
/* map itct entry */
|
||||
hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
|
||||
(1 << CMD_HDR_FRAME_TYPE_OFF) |
|
||||
(DIR_NO_DATA << CMD_HDR_DIR_OFF));
|
||||
|
||||
/* dw2 */
|
||||
hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
|
||||
(HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
|
||||
CMD_HDR_MRFL_OFF));
|
||||
|
||||
hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
|
||||
|
||||
hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
|
||||
hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma);
|
||||
|
||||
return 0;
|
||||
|
||||
err_out_resp:
|
||||
dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1,
|
||||
DMA_FROM_DEVICE);
|
||||
err_out_req:
|
||||
dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1,
|
||||
DMA_TO_DEVICE);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
|
||||
struct hisi_sas_slot *slot, int is_tmf,
|
||||
struct hisi_sas_tmf_task *tmf)
|
||||
|
@ -1395,6 +1465,7 @@ static const struct hisi_sas_hw hisi_sas_v2_hw = {
|
|||
.hw_init = hisi_sas_v2_init,
|
||||
.sl_notify = sl_notify_v2_hw,
|
||||
.get_wideport_bitmap = get_wideport_bitmap_v2_hw,
|
||||
.prep_smp = prep_smp_v2_hw,
|
||||
.prep_ssp = prep_ssp_v2_hw,
|
||||
.get_free_slot = get_free_slot_v2_hw,
|
||||
.start_delivery = start_delivery_v2_hw,
|
||||
|
|
Loading…
Reference in a new issue