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[PATCH] IB/ipath: fixes to performance get counters for IB compliance

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This patch fixes some problems uncovered during IB compliance testing to
return the right values for error counters returned by the Performance Get
Counters packet.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Bryan O'Sullivan 2006-07-01 04:36:09 -07:00 committed by Linus Torvalds
parent 85322947d7
commit fba75200ad
9 changed files with 93 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/infiniband/hw/ipath/ipath_driver.c
View File

@ -460,6 +460,8 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
* by ipath_setup_htconfig.
*/
dd->ipath_flags = 0;
dd->ipath_lli_counter = 0;
dd->ipath_lli_errors = 0;
if (dd->ipath_f_bus(dd, pdev))
ipath_dev_err(dd, "Failed to setup config space; "
@ -942,6 +944,18 @@ reloop:
"tlen=%x opcode=%x egridx=%x: %s\n",
eflags, l, etype, tlen, bthbytes[0],
ips_get_index((__le32 *) rc), emsg);
/* Count local link integrity errors. */
if (eflags & (INFINIPATH_RHF_H_ICRCERR |
INFINIPATH_RHF_H_VCRCERR)) {
u8 n = (dd->ipath_ibcctrl >>
INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) &
INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK;
if (++dd->ipath_lli_counter > n) {
dd->ipath_lli_counter = 0;
dd->ipath_lli_errors++;
}
}
} else if (etype == RCVHQ_RCV_TYPE_NON_KD) {
int ret = __ipath_verbs_rcv(dd, rc + 1,
ebuf, tlen);
@ -949,6 +963,9 @@ reloop:
ipath_cdbg(VERBOSE,
"received IB packet, "
"not SMA (QP=%x)\n", qp);
if (dd->ipath_lli_counter)
dd->ipath_lli_counter--;
} else if (etype == RCVHQ_RCV_TYPE_EAGER) {
if (qp == IPATH_KD_QP &&
bthbytes[0] == ipath_layer_rcv_opcode &&

1
drivers/infiniband/hw/ipath/ipath_intr.c
View File

@ -262,6 +262,7 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd,
| IPATH_LINKACTIVE |
IPATH_LINKARMED);
*dd->ipath_statusp &= ~IPATH_STATUS_IB_READY;
dd->ipath_lli_counter = 0;
if (!noprint) {
if (((dd->ipath_lastibcstat >>
INFINIPATH_IBCS_LINKSTATE_SHIFT) &

5
drivers/infiniband/hw/ipath/ipath_kernel.h
View File

@ -507,6 +507,11 @@ struct ipath_devdata {
u8 ipath_pci_cacheline;
/* LID mask control */
u8 ipath_lmc;
/* local link integrity counter */
u32 ipath_lli_counter;
/* local link integrity errors */
u32 ipath_lli_errors;
};
extern struct list_head ipath_dev_list;

9
drivers/infiniband/hw/ipath/ipath_layer.c
View File

@ -1032,19 +1032,22 @@ int ipath_layer_get_counters(struct ipath_devdata *dd,
ipath_snap_cntr(dd, dd->ipath_cregs->cr_ibsymbolerrcnt);
cntrs->link_error_recovery_counter =
ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt);
/*
* The link downed counter counts when the other side downs the
* connection. We add in the number of times we downed the link
* due to local link integrity errors to compensate.
*/
cntrs->link_downed_counter =
ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkdowncnt);
cntrs->port_rcv_errors =
ipath_snap_cntr(dd, dd->ipath_cregs->cr_rxdroppktcnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvovflcnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_portovflcnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_errrcvflowctrlcnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_err_rlencnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_invalidrlencnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_erricrccnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_errvcrccnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_errlpcrccnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_errlinkcnt) +
ipath_snap_cntr(dd, dd->ipath_cregs->cr_badformatcnt);
cntrs->port_rcv_remphys_errors =
ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvebpcnt);
@ -1058,6 +1061,8 @@ int ipath_layer_get_counters(struct ipath_devdata *dd,
ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt);
cntrs->port_rcv_packets =
ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt);
cntrs->local_link_integrity_errors = dd->ipath_lli_errors;
cntrs->excessive_buffer_overrun_errors = 0; /* XXX */
ret = 0;

2
drivers/infiniband/hw/ipath/ipath_layer.h
View File

@ -55,6 +55,8 @@ struct ipath_layer_counters {
u64 port_rcv_data;
u64 port_xmit_packets;
u64 port_rcv_packets;
u32 local_link_integrity_errors;
u32 excessive_buffer_overrun_errors;
};
/*

52
drivers/infiniband/hw/ipath/ipath_mad.c
View File

@ -613,6 +613,9 @@ struct ib_pma_portcounters {
#define IB_PMA_SEL_PORT_RCV_ERRORS __constant_htons(0x0008)
#define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS __constant_htons(0x0010)
#define IB_PMA_SEL_PORT_XMIT_DISCARDS __constant_htons(0x0040)
#define IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS __constant_htons(0x0200)
#define IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS __constant_htons(0x0400)
#define IB_PMA_SEL_PORT_VL15_DROPPED __constant_htons(0x0800)
#define IB_PMA_SEL_PORT_XMIT_DATA __constant_htons(0x1000)
#define IB_PMA_SEL_PORT_RCV_DATA __constant_htons(0x2000)
#define IB_PMA_SEL_PORT_XMIT_PACKETS __constant_htons(0x4000)
@ -859,6 +862,10 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
cntrs.port_rcv_data -= dev->z_port_rcv_data;
cntrs.port_xmit_packets -= dev->z_port_xmit_packets;
cntrs.port_rcv_packets -= dev->z_port_rcv_packets;
cntrs.local_link_integrity_errors -=
dev->z_local_link_integrity_errors;
cntrs.excessive_buffer_overrun_errors -=
dev->z_excessive_buffer_overrun_errors;
memset(pmp->data, 0, sizeof(pmp->data));
@ -896,6 +903,16 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
else
p->port_xmit_discards =
cpu_to_be16((u16)cntrs.port_xmit_discards);
if (cntrs.local_link_integrity_errors > 0xFUL)
cntrs.local_link_integrity_errors = 0xFUL;
if (cntrs.excessive_buffer_overrun_errors > 0xFUL)
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)
p->vl15_dropped = __constant_cpu_to_be16(0xFFFF);
else
p->vl15_dropped = cpu_to_be16((u16)dev->n_vl15_dropped);
if (cntrs.port_xmit_data > 0xFFFFFFFFUL)
p->port_xmit_data = __constant_cpu_to_be32(0xFFFFFFFF);
else
@ -990,6 +1007,17 @@ static int recv_pma_set_portcounters(struct ib_perf *pmp,
if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DISCARDS)
dev->z_port_xmit_discards = cntrs.port_xmit_discards;
if (p->counter_select & IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS)
dev->z_local_link_integrity_errors =
cntrs.local_link_integrity_errors;
if (p->counter_select & IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS)
dev->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
if (p->counter_select & IB_PMA_SEL_PORT_VL15_DROPPED)
dev->n_vl15_dropped = 0;
if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA)
dev->z_port_xmit_data = cntrs.port_xmit_data;
@ -1275,32 +1303,8 @@ int ipath_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
struct ib_wc *in_wc, struct ib_grh *in_grh,
struct ib_mad *in_mad, struct ib_mad *out_mad)
{
struct ipath_ibdev *dev = to_idev(ibdev);
int ret;
/*
* Snapshot current HW counters to "clear" them.
* This should be done when the driver is loaded except that for
* some reason we get a zillion errors when brining up the link.
*/
if (dev->rcv_errors == 0) {
struct ipath_layer_counters cntrs;
ipath_layer_get_counters(to_idev(ibdev)->dd, &cntrs);
dev->rcv_errors++;
dev->z_symbol_error_counter = cntrs.symbol_error_counter;
dev->z_link_error_recovery_counter =
cntrs.link_error_recovery_counter;
dev->z_link_downed_counter = cntrs.link_downed_counter;
dev->z_port_rcv_errors = cntrs.port_rcv_errors + 1;
dev->z_port_rcv_remphys_errors =
cntrs.port_rcv_remphys_errors;
dev->z_port_xmit_discards = cntrs.port_xmit_discards;
dev->z_port_xmit_data = cntrs.port_xmit_data;
dev->z_port_rcv_data = cntrs.port_rcv_data;
dev->z_port_xmit_packets = cntrs.port_xmit_packets;
dev->z_port_rcv_packets = cntrs.port_rcv_packets;
}
switch (in_mad->mad_hdr.mgmt_class) {
case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
case IB_MGMT_CLASS_SUBN_LID_ROUTED:

11
drivers/infiniband/hw/ipath/ipath_ud.c
View File

@ -560,7 +560,16 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
spin_lock_irqsave(&rq->lock, flags);
if (rq->tail == rq->head) {
spin_unlock_irqrestore(&rq->lock, flags);
dev->n_pkt_drops++;
/*
* Count VL15 packets dropped due to no receive buffer.
* Otherwise, count them as buffer overruns since usually,
* the HW will be able to receive packets even if there are
* no QPs with posted receive buffers.
*/
if (qp->ibqp.qp_num == 0)
dev->n_vl15_dropped++;
else
dev->rcv_errors++;
goto bail;
}
/* Silently drop packets which are too big. */

20
drivers/infiniband/hw/ipath/ipath_verbs.c
View File

@ -981,6 +981,7 @@ static int ipath_verbs_register_sysfs(struct ib_device *dev);
*/
static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd)
{
struct ipath_layer_counters cntrs;
struct ipath_ibdev *idev;
struct ib_device *dev;
int ret;
@ -1031,6 +1032,25 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd)
idev->pma_counter_select[5] = IB_PMA_PORT_XMIT_WAIT;
idev->link_width_enabled = 3; /* 1x or 4x */
/* Snapshot current HW counters to "clear" them. */
ipath_layer_get_counters(dd, &cntrs);
idev->z_symbol_error_counter = cntrs.symbol_error_counter;
idev->z_link_error_recovery_counter =
cntrs.link_error_recovery_counter;
idev->z_link_downed_counter = cntrs.link_downed_counter;
idev->z_port_rcv_errors = cntrs.port_rcv_errors;
idev->z_port_rcv_remphys_errors =
cntrs.port_rcv_remphys_errors;
idev->z_port_xmit_discards = cntrs.port_xmit_discards;
idev->z_port_xmit_data = cntrs.port_xmit_data;
idev->z_port_rcv_data = cntrs.port_rcv_data;
idev->z_port_xmit_packets = cntrs.port_xmit_packets;
idev->z_port_rcv_packets = cntrs.port_rcv_packets;
idev->z_local_link_integrity_errors =
cntrs.local_link_integrity_errors;
idev->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
/*
* The system image GUID is supposed to be the same for all
* IB HCAs in a single system but since there can be other

3
drivers/infiniband/hw/ipath/ipath_verbs.h
View File

@ -460,6 +460,8 @@ struct ipath_ibdev {
u64 z_port_xmit_packets; /* starting count for PMA */
u64 z_port_rcv_packets; /* starting count for PMA */
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 n_rc_resends;
u32 n_rc_acks;
u32 n_rc_qacks;
@ -469,6 +471,7 @@ struct ipath_ibdev {
u32 n_other_naks;
u32 n_timeouts;
u32 n_pkt_drops;
u32 n_vl15_dropped;
u32 n_wqe_errs;
u32 n_rdma_dup_busy;
u32 n_piowait;