From: Xiangliang Yu <[email protected]>
-- Add support for Non specific NCQ error interrupt.
Signed-off-by: Xiangliang Yu <[email protected]>
---
drivers/scsi/mvsas/mv_64xx.c | 1 +
drivers/scsi/mvsas/mv_94xx.c | 32 +++++++++++++++++++++++++++++++-
drivers/scsi/mvsas/mv_chips.h | 3 +++
drivers/scsi/mvsas/mv_defs.h | 1 +
drivers/scsi/mvsas/mv_sas.c | 14 ++++++++++++++
drivers/scsi/mvsas/mv_sas.h | 2 ++
6 files changed, 52 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/mvsas/mv_64xx.c b/drivers/scsi/mvsas/mv_64xx.c
index 13c9604..0e13e64 100644
--- a/drivers/scsi/mvsas/mv_64xx.c
+++ b/drivers/scsi/mvsas/mv_64xx.c
@@ -811,5 +811,6 @@ const struct mvs_dispatch mvs_64xx_dispatch = {
#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_64xx_fix_dma,
#endif
+ NULL,
};
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index 78162c3..9d60c7c 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -249,7 +249,7 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi)
/* enable completion queue interrupt */
tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
- CINT_DMA_PCIE);
+ CINT_DMA_PCIE | CINT_NON_SPEC_NCQ_ERROR);
tmp |= CINT_PHY_MASK;
mw32(MVS_INT_MASK, tmp);
@@ -367,6 +367,35 @@ static void mvs_94xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
mw32(MVS_PCS, tmp);
}
+static void mvs_94xx_non_spec_ncq_error(struct mvs_info *mvi)
+{
+ void __iomem *regs = mvi->regs;
+ u32 err_0, err_1;
+ u8 i;
+ struct mvs_device *device;
+
+ err_0 = mr32(MVS_NON_NCQ_ERR_0);
+ err_1 = mr32(MVS_NON_NCQ_ERR_1);
+
+ mv_dprintk("non specific ncq error err_0:%x,err_1:%x.\n",
+ err_0, err_1);
+ for (i = 0; i < 32; i++) {
+ if (err_0 & bit(i)) {
+ device = mvs_find_dev_by_reg_set(mvi, i);
+ if (device)
+ mvs_release_task(mvi, device->sas_device);
+ }
+ if (err_1 & bit(i)) {
+ device = mvs_find_dev_by_reg_set(mvi, i+32);
+ if (device)
+ mvs_release_task(mvi, device->sas_device);
+ }
+ }
+
+ mw32(MVS_NON_NCQ_ERR_0, err_0);
+ mw32(MVS_NON_NCQ_ERR_1, err_1);
+}
+
static void mvs_94xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
{
void __iomem *regs = mvi->regs;
@@ -679,5 +708,6 @@ const struct mvs_dispatch mvs_94xx_dispatch = {
#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_94xx_fix_dma,
#endif
+ mvs_94xx_non_spec_ncq_error,
};
diff --git a/drivers/scsi/mvsas/mv_chips.h b/drivers/scsi/mvsas/mv_chips.h
index 1753a6f..4519f80 100644
--- a/drivers/scsi/mvsas/mv_chips.h
+++ b/drivers/scsi/mvsas/mv_chips.h
@@ -223,6 +223,9 @@ static inline void mvs_int_full(struct mvs_info *mvi)
mvs_int_port(mvi, i, tmp);
}
+ if (stat & CINT_NON_SPEC_NCQ_ERROR)
+ MVS_CHIP_DISP->non_spec_ncq_error(mvi);
+
if (stat & CINT_SRS)
mvs_int_sata(mvi);
diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h
index bc00c94..9202bc6 100644
--- a/drivers/scsi/mvsas/mv_defs.h
+++ b/drivers/scsi/mvsas/mv_defs.h
@@ -144,6 +144,7 @@ enum hw_register_bits {
CINT_DMA_PCIE = (1U << 27), /* DMA to PCIE timeout */
CINT_MEM = (1U << 26), /* int mem parity err */
CINT_I2C_SLAVE = (1U << 25), /* slave I2C event */
+ CINT_NON_SPEC_NCQ_ERROR = (1U << 25), /* Non specific NCQ error */
CINT_SRS = (1U << 3), /* SRS event */
CINT_CI_STOP = (1U << 1), /* cmd issue stopped */
CINT_DONE = (1U << 0), /* cmd completion */
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 0ef2742..aaa475a 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -253,6 +253,20 @@ int mvs_find_dev_phyno(struct domain_device *dev, int *phyno)
return num;
}
+struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi,
+ u8 reg_set)
+{
+ u32 dev_no;
+ for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) {
+ if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED)
+ continue;
+
+ if (mvi->devices[dev_no].taskfileset == reg_set)
+ return &mvi->devices[dev_no];
+ }
+ return NULL;
+}
+
static inline void mvs_free_reg_set(struct mvs_info *mvi,
struct mvs_device *dev)
{
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index 1367d8b..f96100d 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -170,6 +170,7 @@ struct mvs_dispatch {
#ifndef DISABLE_HOTPLUG_DMA_FIX
void (*dma_fix)(dma_addr_t buf_dma, int buf_len, int from, void *prd);
#endif
+ void (*non_spec_ncq_error)(struct mvs_info *mvi);
};
@@ -416,5 +417,6 @@ void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events);
void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st);
int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
void mvs_hexdump(u32 size, u8 *data, u32 baseaddr);
+struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, u8 reg_set);
#endif
--
1.7.4.4
On May 24, 2011, [email protected] wrote:
> From: Xiangliang Yu <[email protected]>
>
> -- Add support for Non specific NCQ error interrupt.
>
I apologize if this has been covered, but do these changes or the ones made a
month ago fix the issues people have been having with the mvsas driver on 64xx
based cards like my AOC-SASLP-MV8 (based on a MV64460/64461/64462 Rev B)?
I have a relatively recent 2.6.38 kernel running the box with the mvsas
controller (with 7 SATA drives). I've noticed it doesn't panic when plugging
in a drive which is nice, but I don't have the courage to attempt a hot
unplug. I am still getting a significant number of device reset and libata
invalid sector 0 errors.
Example of such errors:
[394488.800081] /build/buildd-linux-2.6_2.6.38-4-amd64-eEW_ml/linux-2.6-2.6.38/debian/build/source_amd64_none/drivers/scsi/mvsas/mv_sas.c 1632:mvs_query_task:rc= 5
[394491.008046] /build/buildd-linux-2.6_2.6.38-4-amd64-eEW_ml/linux-2.6-2.6.38/debian/build/source_amd64_none/drivers/scsi/mvsas/mv_sas.c 1586:mvs_I_T_nexus_reset for device[3]:rc= 0
[394491.008070] ata12: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ 0xb/00/00
[394491.008519] ata12.00: device reported invalid CHS sector 0
[394491.008526] ata12: status=0x01 { Error }
[394491.008532] ata12: error=0x04 { DriveStatusError }
I get at least 10 of those a day. (it is better than it was)
Thanks.
--
Thomas Fjellstrom
[email protected]
>> From: Xiangliang Yu <[email protected]>
>>
>> -- Add support for Non specific NCQ error interrupt.
>>
>I apologize if this has been covered, but do these changes or the ones made a
>month ago fix the issues people have been having with the mvsas driver on 64xx
>based cards like my AOC-SASLP-MV8 (based on a MV64460/64461/64462 Rev B)?
>I have a relatively recent 2.6.38 kernel running the box with the mvsas
>controller (with 7 SATA drives). I've noticed it doesn't panic when plugging
>in a drive which is nice, but I don't have the courage to attempt a hot
>unplug. I am still getting a significant number of device reset and libata
>invalid sector 0 errors.
>Example of such errors:
>[394488.800081] >/build/buildd-linux-2.6_2.6.38-4-amd64-eEW_ml/linux-2.6-2.6.38/debian/build>/source_amd64_none/drivers/scsi/mvsas/mv_sas.c 1632:mvs_query_task:rc= 5
>[394491.008046] /build/buildd-linux-2.6_2.6.38-4-amd64-eEW_ml/linux-2.6-2.6.38/debian/build/>source_amd64_none/drivers/scsi/mvsas/mv_sas.c 1586:mvs_I_T_nexus_reset for >device[3]:rc= 0
>[394491.008070] ata12: translated ATA stat/err 0x01/04 to SCSI SK/ASC/ASCQ >0xb/00/00
>[394491.008519] ata12.00: device reported invalid CHS sector 0
>[394491.008526] ata12: status=0x01 { Error }
>[394491.008532] ata12: error=0x04 { DriveStatusError }
>I get at least 10 of those a day. (it is better than it was)
It need libsas SATA NCQ error handler, and I have committed a patch. The patch is: http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commit;h=bb650a1bef73a8c1fd076fae4c4f0701cf3b5f25
Please wait it to apply to kernel, and try again. Thanks!