Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6c719cae0b91f577738dfb4007baee28f03e48a5
Commit: 6c719cae0b91f577738dfb4007baee28f03e48a5
Parent: 7aa54bd730df1468c90ae84b56ade7f322b44de7
Author: Ralph Campbell <[EMAIL PROTECTED]>
AuthorDate: Sun Jan 6 21:02:33 2008 -0800
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 14:15:38 2008 -0800
IB/ipath: MAD performance sampling registers support
Add support for QLogic HCAs which have hardware performance sampling
registers for PortSamplesControl and PortSamplesResult MADs.
Signed-off-by: Ralph Campbell <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/ipath/ipath_kernel.h | 9 ++
drivers/infiniband/hw/ipath/ipath_mad.c | 119 ++++++++++++++++---------
drivers/infiniband/hw/ipath/ipath_registers.h | 14 +++
drivers/infiniband/hw/ipath/ipath_verbs.c | 1 +
drivers/infiniband/hw/ipath/ipath_verbs.h | 2 +
5 files changed, 101 insertions(+), 44 deletions(-)
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h
b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 7bb0d08..a59c069 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -930,6 +930,15 @@ static inline u32 ipath_read_creg32(const struct
ipath_devdata *dd,
(char __iomem *)dd->ipath_kregbase));
}
+static inline void ipath_write_creg(const struct ipath_devdata *dd,
+ ipath_creg regno, u64 value)
+{
+ if (dd->ipath_kregbase)
+ writeq(value, regno + (u64 __iomem *)
+ (dd->ipath_cregbase +
+ (char __iomem *)dd->ipath_kregbase));
+}
+
static inline void ipath_clear_rcvhdrtail(const struct ipath_portdata *pd)
{
*((u64 *) pd->port_rcvhdrtail_kvaddr) = 0ULL;
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c
b/drivers/infiniband/hw/ipath/ipath_mad.c
index 1978c34..d98d5f1 100644
--- a/drivers/infiniband/hw/ipath/ipath_mad.c
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c
@@ -934,6 +934,7 @@ static int recv_pma_get_portsamplescontrol(struct ib_perf
*pmp,
struct ib_pma_portsamplescontrol *p =
(struct ib_pma_portsamplescontrol *)pmp->data;
struct ipath_ibdev *dev = to_idev(ibdev);
+ struct ipath_cregs const *crp = dev->dd->ipath_cregs;
unsigned long flags;
u8 port_select = p->port_select;
@@ -955,7 +956,10 @@ static int recv_pma_get_portsamplescontrol(struct ib_perf
*pmp,
p->counter_width = 4; /* 32 bit counters */
p->counter_mask0_9 = COUNTER_MASK0_9;
spin_lock_irqsave(&dev->pending_lock, flags);
- p->sample_status = dev->pma_sample_status;
+ if (crp->cr_psstat)
+ p->sample_status = ipath_read_creg32(dev->dd, crp->cr_psstat);
+ else
+ p->sample_status = dev->pma_sample_status;
p->sample_start = cpu_to_be32(dev->pma_sample_start);
p->sample_interval = cpu_to_be32(dev->pma_sample_interval);
p->tag = cpu_to_be16(dev->pma_tag);
@@ -975,8 +979,9 @@ static int recv_pma_set_portsamplescontrol(struct ib_perf
*pmp,
struct ib_pma_portsamplescontrol *p =
(struct ib_pma_portsamplescontrol *)pmp->data;
struct ipath_ibdev *dev = to_idev(ibdev);
+ struct ipath_cregs const *crp = dev->dd->ipath_cregs;
unsigned long flags;
- u32 start;
+ u8 status;
int ret;
if (pmp->attr_mod != 0 ||
@@ -986,59 +991,67 @@ static int recv_pma_set_portsamplescontrol(struct ib_perf
*pmp,
goto bail;
}
- start = be32_to_cpu(p->sample_start);
- if (start != 0) {
- spin_lock_irqsave(&dev->pending_lock, flags);
- if (dev->pma_sample_status == IB_PMA_SAMPLE_STATUS_DONE) {
- dev->pma_sample_status =
- IB_PMA_SAMPLE_STATUS_STARTED;
- dev->pma_sample_start = start;
- dev->pma_sample_interval =
- be32_to_cpu(p->sample_interval);
- dev->pma_tag = be16_to_cpu(p->tag);
- if (p->counter_select[0])
- dev->pma_counter_select[0] =
- p->counter_select[0];
- if (p->counter_select[1])
- dev->pma_counter_select[1] =
- p->counter_select[1];
- if (p->counter_select[2])
- dev->pma_counter_select[2] =
- p->counter_select[2];
- if (p->counter_select[3])
- dev->pma_counter_select[3] =
- p->counter_select[3];
- if (p->counter_select[4])
- dev->pma_counter_select[4] =
- p->counter_select[4];
- }
- spin_unlock_irqrestore(&dev->pending_lock, flags);
+ spin_lock_irqsave(&dev->pending_lock, flags);
+ if (crp->cr_psstat)
+ status = ipath_read_creg32(dev->dd, crp->cr_psstat);
+ else
+ status = dev->pma_sample_status;
+ if (status == IB_PMA_SAMPLE_STATUS_DONE) {
+ dev->pma_sample_start = be32_to_cpu(p->sample_start);
+ dev->pma_sample_interval = be32_to_cpu(p->sample_interval);
+ dev->pma_tag = be16_to_cpu(p->tag);
+ dev->pma_counter_select[0] = p->counter_select[0];
+ dev->pma_counter_select[1] = p->counter_select[1];
+ dev->pma_counter_select[2] = p->counter_select[2];
+ dev->pma_counter_select[3] = p->counter_select[3];
+ dev->pma_counter_select[4] = p->counter_select[4];
+ if (crp->cr_psstat) {
+ ipath_write_creg(dev->dd, crp->cr_psinterval,
+ dev->pma_sample_interval);
+ ipath_write_creg(dev->dd, crp->cr_psstart,
+ dev->pma_sample_start);
+ } else
+ dev->pma_sample_status = IB_PMA_SAMPLE_STATUS_STARTED;
}
+ spin_unlock_irqrestore(&dev->pending_lock, flags);
+
ret = recv_pma_get_portsamplescontrol(pmp, ibdev, port);
bail:
return ret;
}
-static u64 get_counter(struct ipath_ibdev *dev, __be16 sel)
+static u64 get_counter(struct ipath_ibdev *dev,
+ struct ipath_cregs const *crp,
+ __be16 sel)
{
u64 ret;
switch (sel) {
case IB_PMA_PORT_XMIT_DATA:
- ret = dev->ipath_sword;
+ ret = (crp->cr_psxmitdatacount) ?
+ ipath_read_creg32(dev->dd, crp->cr_psxmitdatacount) :
+ dev->ipath_sword;
break;
case IB_PMA_PORT_RCV_DATA:
- ret = dev->ipath_rword;
+ ret = (crp->cr_psrcvdatacount) ?
+ ipath_read_creg32(dev->dd, crp->cr_psrcvdatacount) :
+ dev->ipath_rword;
break;
case IB_PMA_PORT_XMIT_PKTS:
- ret = dev->ipath_spkts;
+ ret = (crp->cr_psxmitpktscount) ?
+ ipath_read_creg32(dev->dd, crp->cr_psxmitpktscount) :
+ dev->ipath_spkts;
break;
case IB_PMA_PORT_RCV_PKTS:
- ret = dev->ipath_rpkts;
+ ret = (crp->cr_psrcvpktscount) ?
+ ipath_read_creg32(dev->dd, crp->cr_psrcvpktscount) :
+ dev->ipath_rpkts;
break;
case IB_PMA_PORT_XMIT_WAIT:
- ret = dev->ipath_xmit_wait;
+ ret = (crp->cr_psxmitwaitcount) ?
+ ipath_read_creg32(dev->dd, crp->cr_psxmitwaitcount) :
+ dev->ipath_xmit_wait;
break;
default:
ret = 0;
@@ -1053,14 +1066,21 @@ static int recv_pma_get_portsamplesresult(struct
ib_perf *pmp,
struct ib_pma_portsamplesresult *p =
(struct ib_pma_portsamplesresult *)pmp->data;
struct ipath_ibdev *dev = to_idev(ibdev);
+ struct ipath_cregs const *crp = dev->dd->ipath_cregs;
+ u8 status;
int i;
memset(pmp->data, 0, sizeof(pmp->data));
p->tag = cpu_to_be16(dev->pma_tag);
- p->sample_status = cpu_to_be16(dev->pma_sample_status);
+ if (crp->cr_psstat)
+ status = ipath_read_creg32(dev->dd, crp->cr_psstat);
+ else
+ status = dev->pma_sample_status;
+ p->sample_status = cpu_to_be16(status);
for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++)
- p->counter[i] = cpu_to_be32(
- get_counter(dev, dev->pma_counter_select[i]));
+ p->counter[i] = (status != IB_PMA_SAMPLE_STATUS_DONE) ? 0 :
+ cpu_to_be32(
+ get_counter(dev, crp, dev->pma_counter_select[i]));
return reply((struct ib_smp *) pmp);
}
@@ -1071,16 +1091,23 @@ static int recv_pma_get_portsamplesresult_ext(struct
ib_perf *pmp,
struct ib_pma_portsamplesresult_ext *p =
(struct ib_pma_portsamplesresult_ext *)pmp->data;
struct ipath_ibdev *dev = to_idev(ibdev);
+ struct ipath_cregs const *crp = dev->dd->ipath_cregs;
+ u8 status;
int i;
memset(pmp->data, 0, sizeof(pmp->data));
p->tag = cpu_to_be16(dev->pma_tag);
- p->sample_status = cpu_to_be16(dev->pma_sample_status);
+ if (crp->cr_psstat)
+ status = ipath_read_creg32(dev->dd, crp->cr_psstat);
+ else
+ status = dev->pma_sample_status;
+ p->sample_status = cpu_to_be16(status);
/* 64 bits */
p->extended_width = __constant_cpu_to_be32(0x80000000);
for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++)
- p->counter[i] = cpu_to_be64(
- get_counter(dev, dev->pma_counter_select[i]));
+ p->counter[i] = (status != IB_PMA_SAMPLE_STATUS_DONE) ? 0 :
+ cpu_to_be64(
+ get_counter(dev, crp, dev->pma_counter_select[i]));
return reply((struct ib_smp *) pmp);
}
@@ -1113,6 +1140,8 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
dev->z_local_link_integrity_errors;
cntrs.excessive_buffer_overrun_errors -=
dev->z_excessive_buffer_overrun_errors;
+ cntrs.vl15_dropped -= dev->z_vl15_dropped;
+ cntrs.vl15_dropped += dev->n_vl15_dropped;
memset(pmp->data, 0, sizeof(pmp->data));
@@ -1156,10 +1185,10 @@ static int recv_pma_get_portcounters(struct ib_perf
*pmp,
cntrs.excessive_buffer_overrun_errors = 0xFUL;
p->lli_ebor_errors = (cntrs.local_link_integrity_errors << 4) |
cntrs.excessive_buffer_overrun_errors;
- if (dev->n_vl15_dropped > 0xFFFFUL)
+ if (cntrs.vl15_dropped > 0xFFFFUL)
p->vl15_dropped = __constant_cpu_to_be16(0xFFFF);
else
- p->vl15_dropped = cpu_to_be16((u16)dev->n_vl15_dropped);
+ p->vl15_dropped = cpu_to_be16((u16)cntrs.vl15_dropped);
if (cntrs.port_xmit_data > 0xFFFFFFFFUL)
p->port_xmit_data = __constant_cpu_to_be32(0xFFFFFFFF);
else
@@ -1262,8 +1291,10 @@ static int recv_pma_set_portcounters(struct ib_perf *pmp,
dev->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
- if (p->counter_select & IB_PMA_SEL_PORT_VL15_DROPPED)
+ if (p->counter_select & IB_PMA_SEL_PORT_VL15_DROPPED) {
dev->n_vl15_dropped = 0;
+ dev->z_vl15_dropped = cntrs.vl15_dropped;
+ }
if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA)
dev->z_port_xmit_data = cntrs.port_xmit_data;
diff --git a/drivers/infiniband/hw/ipath/ipath_registers.h
b/drivers/infiniband/hw/ipath/ipath_registers.h
index d7181d4..156ef14 100644
--- a/drivers/infiniband/hw/ipath/ipath_registers.h
+++ b/drivers/infiniband/hw/ipath/ipath_registers.h
@@ -469,6 +469,20 @@ struct ipath_cregs {
ipath_creg cr_unsupvlcnt;
ipath_creg cr_wordrcvcnt;
ipath_creg cr_wordsendcnt;
+ ipath_creg cr_vl15droppedpktcnt;
+ ipath_creg cr_rxotherlocalphyerrcnt;
+ ipath_creg cr_excessbufferovflcnt;
+ ipath_creg cr_locallinkintegrityerrcnt;
+ ipath_creg cr_rxvlerrcnt;
+ ipath_creg cr_rxdlidfltrcnt;
+ ipath_creg cr_psstat;
+ ipath_creg cr_psstart;
+ ipath_creg cr_psinterval;
+ ipath_creg cr_psrcvdatacount;
+ ipath_creg cr_psrcvpktscount;
+ ipath_creg cr_psxmitdatacount;
+ ipath_creg cr_psxmitpktscount;
+ ipath_creg cr_psxmitwaitcount;
};
#endif /* _IPATH_REGISTERS_H */
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c
b/drivers/infiniband/hw/ipath/ipath_verbs.c
index c4c9984..a2baa61 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -1641,6 +1641,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
cntrs.local_link_integrity_errors;
idev->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
+ idev->z_vl15_dropped = cntrs.vl15_dropped;
/*
* The system image GUID is supposed to be the same for all
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h
b/drivers/infiniband/hw/ipath/ipath_verbs.h
index 6ccb54f..1c89850 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.h
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.h
@@ -554,6 +554,7 @@ struct ipath_ibdev {
u32 z_pkey_violations; /* starting count for PMA */
u32 z_local_link_integrity_errors; /* starting count for PMA */
u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */
+ u32 z_vl15_dropped; /* starting count for PMA */
u32 n_rc_resends;
u32 n_rc_acks;
u32 n_rc_qacks;
@@ -598,6 +599,7 @@ struct ipath_verbs_counters {
u64 port_rcv_packets;
u32 local_link_integrity_errors;
u32 excessive_buffer_overrun_errors;
+ u32 vl15_dropped;
};
static inline struct ipath_mr *to_imr(struct ib_mr *ibmr)
-
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