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hisi_sas: add v2 code for itct setup and free

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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:
John Garry 2016-01-26 02:47:19 +08:00 committed by Martin K. Petersen
parent c2d8939275
commit 85b2c3c040
1 changed files with 92 additions and 0 deletions
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92
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
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@ -353,6 +353,96 @@ static void init_id_frame_v2_hw(struct hisi_hba *hisi_hba)
config_id_frame_v2_hw(hisi_hba, i); config_id_frame_v2_hw(hisi_hba, i);
} }
static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_device *sas_dev)
{
struct domain_device *device = sas_dev->sas_device;
struct device *dev = &hisi_hba->pdev->dev;
u64 qw0, device_id = sas_dev->device_id;
struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
struct domain_device *parent_dev = device->parent;
struct hisi_sas_port *port = device->port->lldd_port;
memset(itct, 0, sizeof(*itct));
/* qw0 */
qw0 = 0;
switch (sas_dev->dev_type) {
case SAS_END_DEVICE:
case SAS_EDGE_EXPANDER_DEVICE:
case SAS_FANOUT_EXPANDER_DEVICE:
qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
break;
case SAS_SATA_DEV:
if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
else
qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
break;
default:
dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
sas_dev->dev_type);
}
qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
(device->max_linkrate << ITCT_HDR_MCR_OFF) |
(1 << ITCT_HDR_VLN_OFF) |
(port->id << ITCT_HDR_PORT_ID_OFF));
itct->qw0 = cpu_to_le64(qw0);
/* qw1 */
memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
itct->sas_addr = __swab64(itct->sas_addr);
/* qw2 */
itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_INLT_OFF) |
(0xff00ULL << ITCT_HDR_BITLT_OFF) |
(0xff00ULL << ITCT_HDR_MCTLT_OFF) |
(0xff00ULL << ITCT_HDR_RTOLT_OFF));
}
static void free_device_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_device *sas_dev)
{
u64 qw0, dev_id = sas_dev->device_id;
struct device *dev = &hisi_hba->pdev->dev;
struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
int i;
/* clear the itct interrupt state */
if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
ENT_INT_SRC3_ITC_INT_MSK);
/* clear the itct int*/
for (i = 0; i < 2; i++) {
/* clear the itct table*/
reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
reg_val |= ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
udelay(10);
reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
if (ENT_INT_SRC3_ITC_INT_MSK & reg_val) {
dev_dbg(dev, "got clear ITCT done interrupt\n");
/* invalid the itct state*/
qw0 = cpu_to_le64(itct->qw0);
qw0 &= ~(1 << ITCT_HDR_VALID_OFF);
hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
ENT_INT_SRC3_ITC_INT_MSK);
hisi_hba->devices[dev_id].dev_type = SAS_PHY_UNUSED;
hisi_hba->devices[dev_id].dev_status = HISI_SAS_DEV_NORMAL;
/* clear the itct */
hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
dev_dbg(dev, "clear ITCT ok\n");
break;
}
}
}
static int reset_hw_v2_hw(struct hisi_hba *hisi_hba) static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
{ {
int i, reset_val; int i, reset_val;
@ -1463,8 +1553,10 @@ static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
static const struct hisi_sas_hw hisi_sas_v2_hw = { static const struct hisi_sas_hw hisi_sas_v2_hw = {
.hw_init = hisi_sas_v2_init, .hw_init = hisi_sas_v2_init,
.setup_itct = setup_itct_v2_hw,
.sl_notify = sl_notify_v2_hw, .sl_notify = sl_notify_v2_hw,
.get_wideport_bitmap = get_wideport_bitmap_v2_hw, .get_wideport_bitmap = get_wideport_bitmap_v2_hw,
.free_device = free_device_v2_hw,
.prep_smp = prep_smp_v2_hw, .prep_smp = prep_smp_v2_hw,
.prep_ssp = prep_ssp_v2_hw, .prep_ssp = prep_ssp_v2_hw,
.get_free_slot = get_free_slot_v2_hw, .get_free_slot = get_free_slot_v2_hw,