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staging/hfi1: add per SDMA engine stats to hfistats 

Added the following per sdma engine stats:
  - SendDmaDescFetchedCnt
  - software maintained count of SDMA interrupts
	 (SDmaInt, SDmaIdleInt, SDmaProgressInt)
  - software maintained counts of SDMA error cases

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Vennila Megavannan <vennila.megavannan@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Vennila Megavannan 2016-01-11 18:30:56 -05:00 коммит произвёл Doug Ledford
Родитель 0edf80eae0
Коммит a699c6c27f
6 изменённых файлов: 138 добавлений и 14 удалений
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110
drivers/staging/rdma/hfi1/chip.c
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@ -1297,10 +1297,58 @@ static u64 dev_access_u32_csr(const struct cntr_entry *entry,
void *context, int vl, int mode, u64 data)
{
struct hfi1_devdata *dd = context;
u64 csr = entry->csr;
if (vl != CNTR_INVALID_VL)
return 0;
return read_write_csr(dd, entry->csr, mode, data);
if (entry->flags & CNTR_SDMA) {
if (vl == CNTR_INVALID_VL)
return 0;
csr += 0x100 * vl;
} else {
if (vl != CNTR_INVALID_VL)
return 0;
}
return read_write_csr(dd, csr, mode, data);
}
static u64 access_sde_err_cnt(const struct cntr_entry *entry,
void *context, int idx, int mode, u64 data)
{
struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
if (dd->per_sdma && idx < dd->num_sdma)
return dd->per_sdma[idx].err_cnt;
return 0;
}
static u64 access_sde_int_cnt(const struct cntr_entry *entry,
void *context, int idx, int mode, u64 data)
{
struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
if (dd->per_sdma && idx < dd->num_sdma)
return dd->per_sdma[idx].sdma_int_cnt;
return 0;
}
static u64 access_sde_idle_int_cnt(const struct cntr_entry *entry,
void *context, int idx, int mode, u64 data)
{
struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
if (dd->per_sdma && idx < dd->num_sdma)
return dd->per_sdma[idx].idle_int_cnt;
return 0;
}
static u64 access_sde_progress_int_cnt(const struct cntr_entry *entry,
void *context, int idx, int mode,
u64 data)
{
struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
if (dd->per_sdma && idx < dd->num_sdma)
return dd->per_sdma[idx].progress_int_cnt;
return 0;
}
static u64 dev_access_u64_csr(const struct cntr_entry *entry, void *context,
@ -4070,6 +4118,22 @@ static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = {
access_sw_kmem_wait),
[C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL,
access_sw_send_schedule),
[C_SDMA_DESC_FETCHED_CNT] = CNTR_ELEM("SDEDscFdCn",
SEND_DMA_DESC_FETCHED_CNT, 0,
CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA,
dev_access_u32_csr),
[C_SDMA_INT_CNT] = CNTR_ELEM("SDMAInt", 0, 0,
CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA,
access_sde_int_cnt),
[C_SDMA_ERR_CNT] = CNTR_ELEM("SDMAErrCt", 0, 0,
CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA,
access_sde_err_cnt),
[C_SDMA_IDLE_INT_CNT] = CNTR_ELEM("SDMAIdInt", 0, 0,
CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA,
access_sde_idle_int_cnt),
[C_SDMA_PROGRESS_INT_CNT] = CNTR_ELEM("SDMAPrIntCn", 0, 0,
CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA,
access_sde_progress_int_cnt),
/* MISC_ERR_STATUS */
[C_MISC_PLL_LOCK_FAIL_ERR] = CNTR_ELEM("MISC_PLL_LOCK_FAIL_ERR", 0, 0,
CNTR_NORMAL,
@ -5707,6 +5771,7 @@ static void handle_sdma_eng_err(struct hfi1_devdata *dd,
dd_dev_err(sde->dd, "CONFIG SDMA(%u) source: %u status 0x%llx\n",
sde->this_idx, source, (unsigned long long)status);
#endif
sde->err_cnt++;
sdma_engine_error(sde, status);
/*
@ -11150,6 +11215,20 @@ u32 hfi1_read_cntrs(struct hfi1_devdata *dd, loff_t pos, char **namep,
dd->cntrs[entry->offset + j] =
val;
}
} else if (entry->flags & CNTR_SDMA) {
hfi1_cdbg(CNTR,
"\t Per SDMA Engine\n");
for (j = 0; j < dd->chip_sdma_engines;
j++) {
val =
entry->rw_cntr(entry, dd, j,
CNTR_MODE_R, 0);
hfi1_cdbg(CNTR,
"\t\tRead 0x%llx for %d\n",
val, j);
dd->cntrs[entry->offset + j] =
val;
}
} else {
val = entry->rw_cntr(entry, dd,
CNTR_INVALID_VL,
@ -11553,6 +11632,21 @@ static int init_cntrs(struct hfi1_devdata *dd)
dd->ndevcntrs++;
index++;
}
} else if (dev_cntrs[i].flags & CNTR_SDMA) {
hfi1_dbg_early(
"\tProcessing per SDE counters chip enginers %u\n",
dd->chip_sdma_engines);
dev_cntrs[i].offset = index;
for (j = 0; j < dd->chip_sdma_engines; j++) {
memset(name, '\0', C_MAX_NAME);
snprintf(name, C_MAX_NAME, "%s%d",
dev_cntrs[i].name, j);
sz += strlen(name);
sz++;
hfi1_dbg_early("\t\t%s\n", name);
dd->ndevcntrs++;
index++;
}
} else {
/* +1 for newline */
sz += strlen(dev_cntrs[i].name) + 1;
@ -11594,6 +11688,16 @@ static int init_cntrs(struct hfi1_devdata *dd)
p += strlen(name);
*p++ = '\n';
}
} else if (dev_cntrs[i].flags & CNTR_SDMA) {
for (j = 0; j < TXE_NUM_SDMA_ENGINES;
j++) {
memset(name, '\0', C_MAX_NAME);
snprintf(name, C_MAX_NAME, "%s%d",
dev_cntrs[i].name, j);
memcpy(p, name, strlen(name));
p += strlen(name);
*p++ = '\n';
}
} else {
memcpy(p, dev_cntrs[i].name,
strlen(dev_cntrs[i].name));

5
drivers/staging/rdma/hfi1/chip.h
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@ -787,6 +787,11 @@ enum {
C_SW_PIO_WAIT,
C_SW_KMEM_WAIT,
C_SW_SEND_SCHED,
C_SDMA_DESC_FETCHED_CNT,
C_SDMA_INT_CNT,
C_SDMA_ERR_CNT,
C_SDMA_IDLE_INT_CNT,
C_SDMA_PROGRESS_INT_CNT,
/* MISC_ERR_STATUS */
C_MISC_PLL_LOCK_FAIL_ERR,
C_MISC_MBIST_FAIL_ERR,

1
drivers/staging/rdma/hfi1/chip_registers.h
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@ -1301,5 +1301,6 @@
#define CCE_INT_BLOCKED (CCE + 0x000000110C00)
#define SEND_DMA_IDLE_CNT (TXE + 0x000000200040)
#define SEND_DMA_DESC_FETCHED_CNT (TXE + 0x000000200058)
#define CCE_MSIX_PBA_OFFSET 0X0110000
#endif /* DEF_CHIP_REG */

1
drivers/staging/rdma/hfi1/hfi.h
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@ -490,6 +490,7 @@ struct hfi1_sge_state;
#define CNTR_DISABLED 0x2 /* Disable this counter */
#define CNTR_32BIT 0x4 /* Simulate 64 bits for this counter */
#define CNTR_VL 0x8 /* Per VL counter */
#define CNTR_SDMA 0x10
#define CNTR_INVALID_VL -1 /* Specifies invalid VL */
#define CNTR_MODE_W 0x0
#define CNTR_MODE_R 0x1

28
drivers/staging/rdma/hfi1/sdma.c
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@ -1061,18 +1061,18 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
sde->desc_avail = sdma_descq_freecnt(sde);
sde->sdma_shift = ilog2(descq_cnt);
sde->sdma_mask = (1 << sde->sdma_shift) - 1;
sde->descq_full_count = 0;
/* Create a mask for all 3 chip interrupt sources */
sde->imask = (u64)1 << (0*TXE_NUM_SDMA_ENGINES + this_idx)
| (u64)1 << (1*TXE_NUM_SDMA_ENGINES + this_idx)
| (u64)1 << (2*TXE_NUM_SDMA_ENGINES + this_idx);
/* Create a mask specifically for sdma_idle */
sde->idle_mask =
(u64)1 << (2*TXE_NUM_SDMA_ENGINES + this_idx);
/* Create a mask specifically for sdma_progress */
sde->progress_mask =
(u64)1 << (TXE_NUM_SDMA_ENGINES + this_idx);
/* Create a mask specifically for each interrupt source */
sde->int_mask = (u64)1 << (0 * TXE_NUM_SDMA_ENGINES +
this_idx);
sde->progress_mask = (u64)1 << (1 * TXE_NUM_SDMA_ENGINES +
this_idx);
sde->idle_mask = (u64)1 << (2 * TXE_NUM_SDMA_ENGINES +
this_idx);
/* Create a combined mask to cover all 3 interrupt sources */
sde->imask = sde->int_mask | sde->progress_mask |
sde->idle_mask;
spin_lock_init(&sde->tail_lock);
seqlock_init(&sde->head_lock);
spin_lock_init(&sde->senddmactrl_lock);
@ -1552,6 +1552,12 @@ void sdma_engine_interrupt(struct sdma_engine *sde, u64 status)
trace_hfi1_sdma_engine_interrupt(sde, status);
write_seqlock(&sde->head_lock);
sdma_set_desc_cnt(sde, sdma_desct_intr);
if (status & sde->idle_mask)
sde->idle_int_cnt++;
else if (status & sde->progress_mask)
sde->progress_int_cnt++;
else if (status & sde->int_mask)
sde->sdma_int_cnt++;
sdma_make_progress(sde, status);
write_sequnlock(&sde->head_lock);
}

7
drivers/staging/rdma/hfi1/sdma.h
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@ -409,6 +409,7 @@ struct sdma_engine {
u64 imask; /* clear interrupt mask */
u64 idle_mask;
u64 progress_mask;
u64 int_mask;
/* private: */
volatile __le64 *head_dma; /* DMA'ed by chip */
/* private: */
@ -465,6 +466,12 @@ struct sdma_engine {
u16 tx_head;
/* private: */
u64 last_status;
/* private */
u64 err_cnt;
/* private */
u64 sdma_int_cnt;
u64 idle_int_cnt;
u64 progress_int_cnt;
/* private: */
struct list_head dmawait;