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scsi: hisi_sas: Code cleanup and minor bug fixes

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The patch does some code cleanup and fixes some small bugs:

- Correct return status of phy_up_v3_hw() and phy_bcast_v3_hw()
- Add static for function phy_get_max_linkrate_v3_hw()
- Change exception return status when no reset method
- Change magic value to ts->stat in slot_complete_vx_hw()
- Remove unnecessary check for dev_is_sata()
- Fix some issues of alignment and indents (Authored by Xiaofei Tan in
  another patch, but added here to be practical)

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2018-03-07 20:25:12 +08:00 committed by Martin K. Petersen
parent 6bf6db518c
commit edafeef4f2
4 changed files with 33 additions and 23 deletions
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14
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -33,7 +33,7 @@ u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
case ATA_CMD_FPDMA_RECV: case ATA_CMD_FPDMA_RECV:
case ATA_CMD_FPDMA_SEND: case ATA_CMD_FPDMA_SEND:
case ATA_CMD_NCQ_NON_DATA: case ATA_CMD_NCQ_NON_DATA:
return HISI_SAS_SATA_PROTOCOL_FPDMA; return HISI_SAS_SATA_PROTOCOL_FPDMA;
case ATA_CMD_DOWNLOAD_MICRO: case ATA_CMD_DOWNLOAD_MICRO:
case ATA_CMD_ID_ATA: case ATA_CMD_ID_ATA:
@ -45,7 +45,7 @@ u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
case ATA_CMD_WRITE_LOG_EXT: case ATA_CMD_WRITE_LOG_EXT:
case ATA_CMD_PIO_WRITE: case ATA_CMD_PIO_WRITE:
case ATA_CMD_PIO_WRITE_EXT: case ATA_CMD_PIO_WRITE_EXT:
return HISI_SAS_SATA_PROTOCOL_PIO; return HISI_SAS_SATA_PROTOCOL_PIO;
case ATA_CMD_DSM: case ATA_CMD_DSM:
case ATA_CMD_DOWNLOAD_MICRO_DMA: case ATA_CMD_DOWNLOAD_MICRO_DMA:
@ -64,7 +64,7 @@ u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
case ATA_CMD_WRITE_LOG_DMA_EXT: case ATA_CMD_WRITE_LOG_DMA_EXT:
case ATA_CMD_WRITE_STREAM_DMA_EXT: case ATA_CMD_WRITE_STREAM_DMA_EXT:
case ATA_CMD_ZAC_MGMT_IN: case ATA_CMD_ZAC_MGMT_IN:
return HISI_SAS_SATA_PROTOCOL_DMA; return HISI_SAS_SATA_PROTOCOL_DMA;
case ATA_CMD_CHK_POWER: case ATA_CMD_CHK_POWER:
case ATA_CMD_DEV_RESET: case ATA_CMD_DEV_RESET:
@ -77,21 +77,21 @@ u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
case ATA_CMD_STANDBY: case ATA_CMD_STANDBY:
case ATA_CMD_STANDBYNOW1: case ATA_CMD_STANDBYNOW1:
case ATA_CMD_ZAC_MGMT_OUT: case ATA_CMD_ZAC_MGMT_OUT:
return HISI_SAS_SATA_PROTOCOL_NONDATA; return HISI_SAS_SATA_PROTOCOL_NONDATA;
default: default:
{ {
if (fis->command == ATA_CMD_SET_MAX) { if (fis->command == ATA_CMD_SET_MAX) {
switch (fis->features) { switch (fis->features) {
case ATA_SET_MAX_PASSWD: case ATA_SET_MAX_PASSWD:
case ATA_SET_MAX_LOCK: case ATA_SET_MAX_LOCK:
return HISI_SAS_SATA_PROTOCOL_PIO; return HISI_SAS_SATA_PROTOCOL_PIO;
case ATA_SET_MAX_PASSWD_DMA: case ATA_SET_MAX_PASSWD_DMA:
case ATA_SET_MAX_UNLOCK_DMA: case ATA_SET_MAX_UNLOCK_DMA:
return HISI_SAS_SATA_PROTOCOL_DMA; return HISI_SAS_SATA_PROTOCOL_DMA;
default: default:
return HISI_SAS_SATA_PROTOCOL_NONDATA; return HISI_SAS_SATA_PROTOCOL_NONDATA;
} }
} }
if (direction == DMA_NONE) if (direction == DMA_NONE)

4
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
View File

@ -651,8 +651,10 @@ static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
dev_err(dev, "De-reset failed\n"); dev_err(dev, "De-reset failed\n");
return -EIO; return -EIO;
} }
} else } else {
dev_warn(dev, "no reset method\n"); dev_warn(dev, "no reset method\n");
return -EINVAL;
}
return 0; return 0;
} }

10
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
View File

@ -1095,8 +1095,10 @@ static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
dev_err(dev, "SAS de-reset fail.\n"); dev_err(dev, "SAS de-reset fail.\n");
return -EIO; return -EIO;
} }
} else } else {
dev_warn(dev, "no reset method\n"); dev_err(dev, "no reset method\n");
return -EINVAL;
}
return 0; return 0;
} }
@ -2408,7 +2410,7 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
spin_lock_irqsave(&hisi_hba->lock, flags); spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_slot_task_free(hisi_hba, task, slot); hisi_sas_slot_task_free(hisi_hba, task, slot);
spin_unlock_irqrestore(&hisi_hba->lock, flags); spin_unlock_irqrestore(&hisi_hba->lock, flags);
return -1; return ts->stat;
} }
if (unlikely(!sas_dev)) { if (unlikely(!sas_dev)) {
@ -2667,7 +2669,7 @@ static int prep_abort_v2_hw(struct hisi_hba *hisi_hba,
/* dw0 */ /* dw0 */
hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/ hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
(port->id << CMD_HDR_PORT_OFF) | (port->id << CMD_HDR_PORT_OFF) |
((dev_is_sata(dev) ? 1:0) << (dev_is_sata(dev) <<
CMD_HDR_ABORT_DEVICE_TYPE_OFF) | CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
(abort_flag << CMD_HDR_ABORT_FLAG_OFF)); (abort_flag << CMD_HDR_ABORT_FLAG_OFF));

28
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -670,8 +670,10 @@ static int reset_hw_v3_hw(struct hisi_hba *hisi_hba)
dev_err(dev, "Reset failed\n"); dev_err(dev, "Reset failed\n");
return -EIO; return -EIO;
} }
} else } else {
dev_err(dev, "no reset method!\n"); dev_err(dev, "no reset method!\n");
return -EINVAL;
}
return 0; return 0;
} }
@ -731,7 +733,7 @@ static void phy_hard_reset_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
start_phy_v3_hw(hisi_hba, phy_no); start_phy_v3_hw(hisi_hba, phy_no);
} }
enum sas_linkrate phy_get_max_linkrate_v3_hw(void) static enum sas_linkrate phy_get_max_linkrate_v3_hw(void)
{ {
return SAS_LINK_RATE_12_0_GBPS; return SAS_LINK_RATE_12_0_GBPS;
} }
@ -1096,7 +1098,7 @@ static int prep_abort_v3_hw(struct hisi_hba *hisi_hba,
/* dw0 */ /* dw0 */
hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/ hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
(port->id << CMD_HDR_PORT_OFF) | (port->id << CMD_HDR_PORT_OFF) |
((dev_is_sata(dev) ? 1:0) (dev_is_sata(dev)
<< CMD_HDR_ABORT_DEVICE_TYPE_OFF) | << CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
(abort_flag (abort_flag
<< CMD_HDR_ABORT_FLAG_OFF)); << CMD_HDR_ABORT_FLAG_OFF));
@ -1112,9 +1114,9 @@ static int prep_abort_v3_hw(struct hisi_hba *hisi_hba,
return 0; return 0;
} }
static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba) static irqreturn_t phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
{ {
int i, res = 0; int i, res;
u32 context, port_id, link_rate; u32 context, port_id, link_rate;
struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
struct asd_sas_phy *sas_phy = &phy->sas_phy; struct asd_sas_phy *sas_phy = &phy->sas_phy;
@ -1186,7 +1188,7 @@ static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
phy->port_id = port_id; phy->port_id = port_id;
phy->phy_attached = 1; phy->phy_attached = 1;
hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP); hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
res = IRQ_HANDLED;
end: end:
hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
CHL_INT0_SL_PHY_ENABLE_MSK); CHL_INT0_SL_PHY_ENABLE_MSK);
@ -1195,7 +1197,7 @@ end:
return res; return res;
} }
static int phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba) static irqreturn_t phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
{ {
u32 phy_state, sl_ctrl, txid_auto; u32 phy_state, sl_ctrl, txid_auto;
struct device *dev = hisi_hba->dev; struct device *dev = hisi_hba->dev;
@ -1217,10 +1219,10 @@ static int phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK); hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0); hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
return 0; return IRQ_HANDLED;
} }
static void phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba) static irqreturn_t phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
{ {
struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
struct asd_sas_phy *sas_phy = &phy->sas_phy; struct asd_sas_phy *sas_phy = &phy->sas_phy;
@ -1231,6 +1233,8 @@ static void phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
CHL_INT0_SL_RX_BCST_ACK_MSK); CHL_INT0_SL_RX_BCST_ACK_MSK);
hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0); hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
return IRQ_HANDLED;
} }
static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p) static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p)
@ -1257,7 +1261,9 @@ static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p)
res = IRQ_HANDLED; res = IRQ_HANDLED;
if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK) if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK)
/* phy bcast */ /* phy bcast */
phy_bcast_v3_hw(phy_no, hisi_hba); if (phy_bcast_v3_hw(phy_no, hisi_hba)
== IRQ_HANDLED)
res = IRQ_HANDLED;
} else { } else {
if (irq_value & CHL_INT0_NOT_RDY_MSK) if (irq_value & CHL_INT0_NOT_RDY_MSK)
/* phy down */ /* phy down */
@ -1573,7 +1579,7 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
spin_lock_irqsave(&hisi_hba->lock, flags); spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_slot_task_free(hisi_hba, task, slot); hisi_sas_slot_task_free(hisi_hba, task, slot);
spin_unlock_irqrestore(&hisi_hba->lock, flags); spin_unlock_irqrestore(&hisi_hba->lock, flags);
return -1; return ts->stat;
} }
if (unlikely(!sas_dev)) { if (unlikely(!sas_dev)) {