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authorXiangliang Yu <yuxiangl@marvell.com>2011-05-24 22:26:50 +0800
committerJames Bottomley <JBottomley@Parallels.com>2011-07-26 10:25:02 +0400
commit534ff10104427ccad071ef87ae7017d47d08e50b (patch)
tree3e0e7a74ef1c109a7a343817295ed6e925fd22c7
parent45b583b10a8b438b970e95a7d1d4db22c9e35004 (diff)
[SCSI] mvsas: Add support for Non specific NCQ error interrupt
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-rw-r--r--drivers/scsi/mvsas/mv_64xx.c1
-rw-r--r--drivers/scsi/mvsas/mv_94xx.c32
-rw-r--r--drivers/scsi/mvsas/mv_chips.h3
-rw-r--r--drivers/scsi/mvsas/mv_defs.h1
-rw-r--r--drivers/scsi/mvsas/mv_sas.c14
-rw-r--r--drivers/scsi/mvsas/mv_sas.h2
6 files changed, 52 insertions, 1 deletions
diff --git a/drivers/scsi/mvsas/mv_64xx.c b/drivers/scsi/mvsas/mv_64xx.c
index 13c960481391..0e13e6441da7 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 78162c3c36e6..9d60c7c19b32 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 1753a6fc42d0..4519f809a8df 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 bc00c940743c..9202bc68801d 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 0ef27425c447..aaa475a3eda6 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 1367d8b9350d..f96100d7aee1 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