diff options
| author |  Ajish Koshy <Ajish.Koshy@microchip.com>
| 2022-02-22 14:56:18 +0530 |
|---|---|---|
| committer |  Martin K. Petersen <martin.petersen@oracle.com>
| 2022-02-27 21:37:28 -0500 |
| commit | 80cac47b08958f98c3e376ca2e1011c9ab880561 (patch) | |
| tree | 9f4999c6c3533d01965c48b6402758192959ba92 /drivers/scsi/pm8001 | |
| parent | scsi: mac53c94: Stop using struct scsi_pointer (diff) | |
| download | linux-80cac47b08958f98c3e376ca2e1011c9ab880561.tar.gz linux-80cac47b08958f98c3e376ca2e1011c9ab880561.tar.bz2 linux-80cac47b08958f98c3e376ca2e1011c9ab880561.zip | |
scsi: pm80xx: Handle non-fatal errors
Firmware expects host driver to clear scratchpad rsvd 0 register after
non-fatal error is found.
This is done when firmware raises fatal error interrupt and indicates
non-fatal error. At this point firmware updates scratchpad rsvd 0 register
with non-fatal error value. Here host has to clear the register after
reading it during non-fatal errors.
Rename:
- MSGU_HOST_SCRATCH_PAD_6 to MSGU_SCRATCH_PAD_RSVD_0
- MSGU_HOST_SCRATCH_PAD_7 to MSGU_SCRATCH_PAD_RSVD_1
Link: https://lore.kernel.org/r/20220222092618.108198-1-Ajish.Koshy@microchip.com
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/pm8001')
| -rw-r--r-- | drivers/scsi/pm8001/pm80xx_hwi.c | 28 | ||||
| -rw-r--r-- | drivers/scsi/pm8001/pm80xx_hwi.h | 9 |
2 files changed, 29 insertions, 8 deletions
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 9bb31f66db85..f90b707c190b 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -1544,9 +1544,9 @@ pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha) { int ret = 0; u32 scratch_pad_rsvd0 = pm8001_cr32(pm8001_ha, 0, - MSGU_HOST_SCRATCH_PAD_6); + MSGU_SCRATCH_PAD_RSVD_0); u32 scratch_pad_rsvd1 = pm8001_cr32(pm8001_ha, 0, - MSGU_HOST_SCRATCH_PAD_7); + MSGU_SCRATCH_PAD_RSVD_1); u32 scratch_pad1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1); u32 scratch_pad2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2); u32 scratch_pad3 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3); @@ -1655,9 +1655,9 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) PCI_VENDOR_ID_ATTO && pm8001_ha->pdev->subsystem_vendor != 0) { ibutton0 = pm8001_cr32(pm8001_ha, 0, - MSGU_HOST_SCRATCH_PAD_6); + MSGU_SCRATCH_PAD_RSVD_0); ibutton1 = pm8001_cr32(pm8001_ha, 0, - MSGU_HOST_SCRATCH_PAD_7); + MSGU_SCRATCH_PAD_RSVD_1); if (!ibutton0 && !ibutton1) { pm8001_dbg(pm8001_ha, FAIL, "iButton Feature is not Available!!!\n"); @@ -4064,9 +4064,9 @@ static void print_scratchpad_registers(struct pm8001_hba_info *pm8001_ha) pm8001_dbg(pm8001_ha, FAIL, "MSGU_HOST_SCRATCH_PAD_5: 0x%x\n", pm8001_cr32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_5)); pm8001_dbg(pm8001_ha, FAIL, "MSGU_RSVD_SCRATCH_PAD_0: 0x%x\n", - pm8001_cr32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_6)); + pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_RSVD_0)); pm8001_dbg(pm8001_ha, FAIL, "MSGU_RSVD_SCRATCH_PAD_1: 0x%x\n", - pm8001_cr32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_7)); + pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_RSVD_1)); } static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) @@ -4100,6 +4100,22 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec) pm8001_handle_event(pm8001_ha, NULL, IO_FATAL_ERROR); print_scratchpad_registers(pm8001_ha); return ret; + } else { + /*read scratchpad rsvd 0 register*/ + regval = pm8001_cr32(pm8001_ha, 0, + MSGU_SCRATCH_PAD_RSVD_0); + switch (regval) { + case NON_FATAL_SPBC_LBUS_ECC_ERR: + case NON_FATAL_BDMA_ERR: + case NON_FATAL_THERM_OVERTEMP_ERR: + /*Clear the register*/ + pm8001_cw32(pm8001_ha, 0, + MSGU_SCRATCH_PAD_RSVD_0, + 0x00000000); + break; + default: + break; + } } } circularQ = &pm8001_ha->outbnd_q_tbl[vec]; diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h index d66b49323d49..b9d9d113809b 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.h +++ b/drivers/scsi/pm8001/pm80xx_hwi.h @@ -1366,8 +1366,8 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t; #define MSGU_HOST_SCRATCH_PAD_3 0x60 #define MSGU_HOST_SCRATCH_PAD_4 0x64 #define MSGU_HOST_SCRATCH_PAD_5 0x68 -#define MSGU_HOST_SCRATCH_PAD_6 0x6C -#define MSGU_HOST_SCRATCH_PAD_7 0x70 +#define MSGU_SCRATCH_PAD_RSVD_0 0x6C +#define MSGU_SCRATCH_PAD_RSVD_1 0x70 #define MSGU_SCRATCHPAD1_RAAE_STATE_ERR(x) ((x & 0x3) == 0x2) #define MSGU_SCRATCHPAD1_ILA_STATE_ERR(x) (((x >> 2) & 0x3) == 0x2) @@ -1439,6 +1439,11 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t; #define SCRATCH_PAD_ERROR_MASK 0xFFFFFC00 /* Error mask bits */ #define SCRATCH_PAD_STATE_MASK 0x00000003 /* State Mask bits */ +/*state definition for Scratchpad Rsvd 0, Offset 0x6C, Non-fatal*/ +#define NON_FATAL_SPBC_LBUS_ECC_ERR 0x70000001 +#define NON_FATAL_BDMA_ERR 0xE0000001 +#define NON_FATAL_THERM_OVERTEMP_ERR 0x80000001 + /* main configuration offset - byte offset */ #define MAIN_SIGNATURE_OFFSET 0x00 /* DWORD 0x00 */ #define MAIN_INTERFACE_REVISION 0x04 /* DWORD 0x01 */ |