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[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>
This commit is contained in:
Xiangliang Yu 2011-05-24 22:26:50 +08:00 committed by James Bottomley
parent 45b583b10a
commit 534ff10104
6 changed files with 52 additions and 1 deletions
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1
drivers/scsi/mvsas/mv_64xx.c
View File

@ -811,5 +811,6 @@ const struct mvs_dispatch mvs_64xx_dispatch = {
#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_64xx_fix_dma,
#endif
NULL,
};

32
drivers/scsi/mvsas/mv_94xx.c
View File

@ -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,
};

3
drivers/scsi/mvsas/mv_chips.h
View File

@ -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);

1
drivers/scsi/mvsas/mv_defs.h
View File

@ -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 */

14
drivers/scsi/mvsas/mv_sas.c
View File

@ -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)
{

2
drivers/scsi/mvsas/mv_sas.h
View File

@ -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