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scsi: pm80xx: Set RETFIS when requested by libsas

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By default PM80xx HBAs return FIS only when a drive reports an error.
The RETFIS bit forces the controller to populate FIS even when a drive
reports no error.

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20230819213040.1101044-3-ipylypiv@google.com
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Igor Pylypiv 2023-08-19 14:30:40 -07:00 committed by Martin K. Petersen
parent 72875018f6
commit 5454329595
4 changed files with 19 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/scsi/pm8001/pm8001_hwi.c
View File

@ -4095,7 +4095,7 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
u32 hdr_tag, ncg_tag = 0;
u64 phys_addr;
u32 ATAP = 0x0;
u32 dir;
u32 dir, retfis = 0;
u32 opc = OPC_INB_SATA_HOST_OPSTART;
memset(&sata_cmd, 0, sizeof(sata_cmd));
@ -4124,8 +4124,11 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
sata_cmd.tag = cpu_to_le32(tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
sata_cmd.ncqtag_atap_dir_m =
cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
if (task->ata_task.return_fis_on_success)
retfis = 1;
sata_cmd.retfis_ncqtag_atap_dir_m =
cpu_to_le32((retfis << 24) | ((ncg_tag & 0xff) << 16) |
((ATAP & 0x3f) << 10) | dir);
sata_cmd.sata_fis = task->ata_task.fis;
if (likely(!task->ata_task.device_control_reg_update))
sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */

2
drivers/scsi/pm8001/pm8001_hwi.h
View File

@ -515,7 +515,7 @@ struct sata_start_req {
__le32 tag;
__le32 device_id;
__le32 data_len;
__le32 ncqtag_atap_dir_m;
__le32 retfis_ncqtag_atap_dir_m;
struct host_to_dev_fis sata_fis;
u32 reserved1;
u32 reserved2;

24
drivers/scsi/pm8001/pm80xx_hwi.c
View File

@ -4457,7 +4457,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
u64 phys_addr, end_addr;
u32 end_addr_high, end_addr_low;
u32 ATAP = 0x0;
u32 dir;
u32 dir, retfis = 0;
u32 opc = OPC_INB_SATA_HOST_OPSTART;
memset(&sata_cmd, 0, sizeof(sata_cmd));
@ -4487,7 +4487,8 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
sata_cmd.tag = cpu_to_le32(tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
if (task->ata_task.return_fis_on_success)
retfis = 1;
sata_cmd.sata_fis = task->ata_task.fis;
if (likely(!task->ata_task.device_control_reg_update))
sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
@ -4500,12 +4501,10 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
"Encryption enabled.Sending Encrypt SATA cmd 0x%x\n",
sata_cmd.sata_fis.command);
opc = OPC_INB_SATA_DIF_ENC_IO;
/* set encryption bit */
sata_cmd.ncqtag_atap_dir_m_dad =
cpu_to_le32(((ncg_tag & 0xff)<<16)|
((ATAP & 0x3f) << 10) | 0x20 | dir);
/* dad (bit 0-1) is 0 */
/* set encryption bit; dad (bits 0-1) is 0 */
sata_cmd.retfis_ncqtag_atap_dir_m_dad =
cpu_to_le32((retfis << 24) | ((ncg_tag & 0xff) << 16) |
((ATAP & 0x3f) << 10) | 0x20 | dir);
/* fill in PRD (scatter/gather) table, if any */
if (task->num_scatter > 1) {
pm8001_chip_make_sg(task->scatter,
@ -4568,11 +4567,10 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
pm8001_dbg(pm8001_ha, IO,
"Sending Normal SATA command 0x%x inb %x\n",
sata_cmd.sata_fis.command, q_index);
/* dad (bit 0-1) is 0 */
sata_cmd.ncqtag_atap_dir_m_dad =
cpu_to_le32(((ncg_tag & 0xff)<<16) |
((ATAP & 0x3f) << 10) | dir);
/* dad (bits 0-1) is 0 */
sata_cmd.retfis_ncqtag_atap_dir_m_dad =
cpu_to_le32((retfis << 24) | ((ncg_tag & 0xff) << 16) |
((ATAP & 0x3f) << 10) | dir);
/* fill in PRD (scatter/gather) table, if any */
if (task->num_scatter > 1) {
pm8001_chip_make_sg(task->scatter,

2
drivers/scsi/pm8001/pm80xx_hwi.h
View File

@ -731,7 +731,7 @@ struct sata_start_req {
__le32 tag;
__le32 device_id;
__le32 data_len;
__le32 ncqtag_atap_dir_m_dad;
__le32 retfis_ncqtag_atap_dir_m_dad;
struct host_to_dev_fis sata_fis;
u32 reserved1;
u32 reserved2; /* dword 11. rsvd for normal I/O. */