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IB/pma: Add include file for IBA performance counters definitions
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Move the various definitions and mad structures needed for software
implementation of IBA PM agent from the ipath and qib drivers into a
single include file, which in turn could be used by more consumers.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Or Gerlitz authored and Roland Dreier committed Jul 19, 2011
1 parent f2a3f6a commit 6aea213
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Showing 4 changed files with 231 additions and 344 deletions.
198 changes: 33 additions & 165 deletions drivers/infiniband/hw/ipath/ipath_mad.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
*/

#include <rdma/ib_smi.h>
#include <rdma/ib_pma.h>

#include "ipath_kernel.h"
#include "ipath_verbs.h"
Expand Down Expand Up @@ -789,151 +790,18 @@ static int recv_subn_set_pkeytable(struct ib_smp *smp,
return recv_subn_get_pkeytable(smp, ibdev);
}

#define IB_PMA_CLASS_PORT_INFO cpu_to_be16(0x0001)
#define IB_PMA_PORT_SAMPLES_CONTROL cpu_to_be16(0x0010)
#define IB_PMA_PORT_SAMPLES_RESULT cpu_to_be16(0x0011)
#define IB_PMA_PORT_COUNTERS cpu_to_be16(0x0012)
#define IB_PMA_PORT_COUNTERS_EXT cpu_to_be16(0x001D)
#define IB_PMA_PORT_SAMPLES_RESULT_EXT cpu_to_be16(0x001E)

struct ib_perf {
u8 base_version;
u8 mgmt_class;
u8 class_version;
u8 method;
__be16 status;
__be16 unused;
__be64 tid;
__be16 attr_id;
__be16 resv;
__be32 attr_mod;
u8 reserved[40];
u8 data[192];
} __attribute__ ((packed));

struct ib_pma_classportinfo {
u8 base_version;
u8 class_version;
__be16 cap_mask;
u8 reserved[3];
u8 resp_time_value; /* only lower 5 bits */
union ib_gid redirect_gid;
__be32 redirect_tc_sl_fl; /* 8, 4, 20 bits respectively */
__be16 redirect_lid;
__be16 redirect_pkey;
__be32 redirect_qp; /* only lower 24 bits */
__be32 redirect_qkey;
union ib_gid trap_gid;
__be32 trap_tc_sl_fl; /* 8, 4, 20 bits respectively */
__be16 trap_lid;
__be16 trap_pkey;
__be32 trap_hl_qp; /* 8, 24 bits respectively */
__be32 trap_qkey;
} __attribute__ ((packed));

struct ib_pma_portsamplescontrol {
u8 opcode;
u8 port_select;
u8 tick;
u8 counter_width; /* only lower 3 bits */
__be32 counter_mask0_9; /* 2, 10 * 3, bits */
__be16 counter_mask10_14; /* 1, 5 * 3, bits */
u8 sample_mechanisms;
u8 sample_status; /* only lower 2 bits */
__be64 option_mask;
__be64 vendor_mask;
__be32 sample_start;
__be32 sample_interval;
__be16 tag;
__be16 counter_select[15];
} __attribute__ ((packed));

struct ib_pma_portsamplesresult {
__be16 tag;
__be16 sample_status; /* only lower 2 bits */
__be32 counter[15];
} __attribute__ ((packed));

struct ib_pma_portsamplesresult_ext {
__be16 tag;
__be16 sample_status; /* only lower 2 bits */
__be32 extended_width; /* only upper 2 bits */
__be64 counter[15];
} __attribute__ ((packed));

struct ib_pma_portcounters {
u8 reserved;
u8 port_select;
__be16 counter_select;
__be16 symbol_error_counter;
u8 link_error_recovery_counter;
u8 link_downed_counter;
__be16 port_rcv_errors;
__be16 port_rcv_remphys_errors;
__be16 port_rcv_switch_relay_errors;
__be16 port_xmit_discards;
u8 port_xmit_constraint_errors;
u8 port_rcv_constraint_errors;
u8 reserved1;
u8 lli_ebor_errors; /* 4, 4, bits */
__be16 reserved2;
__be16 vl15_dropped;
__be32 port_xmit_data;
__be32 port_rcv_data;
__be32 port_xmit_packets;
__be32 port_rcv_packets;
} __attribute__ ((packed));

#define IB_PMA_SEL_SYMBOL_ERROR cpu_to_be16(0x0001)
#define IB_PMA_SEL_LINK_ERROR_RECOVERY cpu_to_be16(0x0002)
#define IB_PMA_SEL_LINK_DOWNED cpu_to_be16(0x0004)
#define IB_PMA_SEL_PORT_RCV_ERRORS cpu_to_be16(0x0008)
#define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS cpu_to_be16(0x0010)
#define IB_PMA_SEL_PORT_XMIT_DISCARDS cpu_to_be16(0x0040)
#define IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS cpu_to_be16(0x0200)
#define IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS cpu_to_be16(0x0400)
#define IB_PMA_SEL_PORT_VL15_DROPPED cpu_to_be16(0x0800)
#define IB_PMA_SEL_PORT_XMIT_DATA cpu_to_be16(0x1000)
#define IB_PMA_SEL_PORT_RCV_DATA cpu_to_be16(0x2000)
#define IB_PMA_SEL_PORT_XMIT_PACKETS cpu_to_be16(0x4000)
#define IB_PMA_SEL_PORT_RCV_PACKETS cpu_to_be16(0x8000)

struct ib_pma_portcounters_ext {
u8 reserved;
u8 port_select;
__be16 counter_select;
__be32 reserved1;
__be64 port_xmit_data;
__be64 port_rcv_data;
__be64 port_xmit_packets;
__be64 port_rcv_packets;
__be64 port_unicast_xmit_packets;
__be64 port_unicast_rcv_packets;
__be64 port_multicast_xmit_packets;
__be64 port_multicast_rcv_packets;
} __attribute__ ((packed));

#define IB_PMA_SELX_PORT_XMIT_DATA cpu_to_be16(0x0001)
#define IB_PMA_SELX_PORT_RCV_DATA cpu_to_be16(0x0002)
#define IB_PMA_SELX_PORT_XMIT_PACKETS cpu_to_be16(0x0004)
#define IB_PMA_SELX_PORT_RCV_PACKETS cpu_to_be16(0x0008)
#define IB_PMA_SELX_PORT_UNI_XMIT_PACKETS cpu_to_be16(0x0010)
#define IB_PMA_SELX_PORT_UNI_RCV_PACKETS cpu_to_be16(0x0020)
#define IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS cpu_to_be16(0x0040)
#define IB_PMA_SELX_PORT_MULTI_RCV_PACKETS cpu_to_be16(0x0080)

static int recv_pma_get_classportinfo(struct ib_perf *pmp)
static int recv_pma_get_classportinfo(struct ib_pma_mad *pmp)
{
struct ib_pma_classportinfo *p =
(struct ib_pma_classportinfo *)pmp->data;
struct ib_class_port_info *p =
(struct ib_class_port_info *)pmp->data;

memset(pmp->data, 0, sizeof(pmp->data));

if (pmp->attr_mod != 0)
pmp->status |= IB_SMP_INVALID_FIELD;
if (pmp->mad_hdr.attr_mod != 0)
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;

/* Indicate AllPortSelect is valid (only one port anyway) */
p->cap_mask = cpu_to_be16(1 << 8);
p->capability_mask = cpu_to_be16(1 << 8);
p->base_version = 1;
p->class_version = 1;
/*
Expand All @@ -957,7 +825,7 @@ static int recv_pma_get_classportinfo(struct ib_perf *pmp)
COUNTER_MASK(1, 3) | \
COUNTER_MASK(1, 4))

static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp,
static int recv_pma_get_portsamplescontrol(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portsamplescontrol *p =
Expand All @@ -970,9 +838,9 @@ static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp,
memset(pmp->data, 0, sizeof(pmp->data));

p->port_select = port_select;
if (pmp->attr_mod != 0 ||
if (pmp->mad_hdr.attr_mod != 0 ||
(port_select != port && port_select != 0xFF))
pmp->status |= IB_SMP_INVALID_FIELD;
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
/*
* Ticks are 10x the link transfer period which for 2.5Gbs is 4
* nsec. 0 == 4 nsec., 1 == 8 nsec., ..., 255 == 1020 nsec. Sample
Expand Down Expand Up @@ -1006,7 +874,7 @@ static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp,
return reply((struct ib_smp *) pmp);
}

static int recv_pma_set_portsamplescontrol(struct ib_perf *pmp,
static int recv_pma_set_portsamplescontrol(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portsamplescontrol *p =
Expand All @@ -1017,9 +885,9 @@ static int recv_pma_set_portsamplescontrol(struct ib_perf *pmp,
u8 status;
int ret;

if (pmp->attr_mod != 0 ||
if (pmp->mad_hdr.attr_mod != 0 ||
(p->port_select != port && p->port_select != 0xFF)) {
pmp->status |= IB_SMP_INVALID_FIELD;
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
ret = reply((struct ib_smp *) pmp);
goto bail;
}
Expand Down Expand Up @@ -1093,7 +961,7 @@ static u64 get_counter(struct ipath_ibdev *dev,
return ret;
}

static int recv_pma_get_portsamplesresult(struct ib_perf *pmp,
static int recv_pma_get_portsamplesresult(struct ib_pma_mad *pmp,
struct ib_device *ibdev)
{
struct ib_pma_portsamplesresult *p =
Expand All @@ -1118,7 +986,7 @@ static int recv_pma_get_portsamplesresult(struct ib_perf *pmp,
return reply((struct ib_smp *) pmp);
}

static int recv_pma_get_portsamplesresult_ext(struct ib_perf *pmp,
static int recv_pma_get_portsamplesresult_ext(struct ib_pma_mad *pmp,
struct ib_device *ibdev)
{
struct ib_pma_portsamplesresult_ext *p =
Expand All @@ -1145,7 +1013,7 @@ static int recv_pma_get_portsamplesresult_ext(struct ib_perf *pmp,
return reply((struct ib_smp *) pmp);
}

static int recv_pma_get_portcounters(struct ib_perf *pmp,
static int recv_pma_get_portcounters(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portcounters *p = (struct ib_pma_portcounters *)
Expand Down Expand Up @@ -1179,9 +1047,9 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
memset(pmp->data, 0, sizeof(pmp->data));

p->port_select = port_select;
if (pmp->attr_mod != 0 ||
if (pmp->mad_hdr.attr_mod != 0 ||
(port_select != port && port_select != 0xFF))
pmp->status |= IB_SMP_INVALID_FIELD;
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;

if (cntrs.symbol_error_counter > 0xFFFFUL)
p->symbol_error_counter = cpu_to_be16(0xFFFF);
Expand Down Expand Up @@ -1216,7 +1084,7 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
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) |
p->link_overrun_errors = (cntrs.local_link_integrity_errors << 4) |
cntrs.excessive_buffer_overrun_errors;
if (cntrs.vl15_dropped > 0xFFFFUL)
p->vl15_dropped = cpu_to_be16(0xFFFF);
Expand Down Expand Up @@ -1244,7 +1112,7 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
return reply((struct ib_smp *) pmp);
}

static int recv_pma_get_portcounters_ext(struct ib_perf *pmp,
static int recv_pma_get_portcounters_ext(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portcounters_ext *p =
Expand All @@ -1265,9 +1133,9 @@ static int recv_pma_get_portcounters_ext(struct ib_perf *pmp,
memset(pmp->data, 0, sizeof(pmp->data));

p->port_select = port_select;
if (pmp->attr_mod != 0 ||
if (pmp->mad_hdr.attr_mod != 0 ||
(port_select != port && port_select != 0xFF))
pmp->status |= IB_SMP_INVALID_FIELD;
pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;

p->port_xmit_data = cpu_to_be64(swords);
p->port_rcv_data = cpu_to_be64(rwords);
Expand All @@ -1281,7 +1149,7 @@ static int recv_pma_get_portcounters_ext(struct ib_perf *pmp,
return reply((struct ib_smp *) pmp);
}

static int recv_pma_set_portcounters(struct ib_perf *pmp,
static int recv_pma_set_portcounters(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portcounters *p = (struct ib_pma_portcounters *)
Expand Down Expand Up @@ -1344,7 +1212,7 @@ static int recv_pma_set_portcounters(struct ib_perf *pmp,
return recv_pma_get_portcounters(pmp, ibdev, port);
}

static int recv_pma_set_portcounters_ext(struct ib_perf *pmp,
static int recv_pma_set_portcounters_ext(struct ib_pma_mad *pmp,
struct ib_device *ibdev, u8 port)
{
struct ib_pma_portcounters *p = (struct ib_pma_portcounters *)
Expand Down Expand Up @@ -1518,19 +1386,19 @@ static int process_perf(struct ib_device *ibdev, u8 port_num,
struct ib_mad *in_mad,
struct ib_mad *out_mad)
{
struct ib_perf *pmp = (struct ib_perf *)out_mad;
struct ib_pma_mad *pmp = (struct ib_pma_mad *)out_mad;
int ret;

*out_mad = *in_mad;
if (pmp->class_version != 1) {
pmp->status |= IB_SMP_UNSUP_VERSION;
if (pmp->mad_hdr.class_version != 1) {
pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION;
ret = reply((struct ib_smp *) pmp);
goto bail;
}

switch (pmp->method) {
switch (pmp->mad_hdr.method) {
case IB_MGMT_METHOD_GET:
switch (pmp->attr_id) {
switch (pmp->mad_hdr.attr_id) {
case IB_PMA_CLASS_PORT_INFO:
ret = recv_pma_get_classportinfo(pmp);
goto bail;
Expand All @@ -1554,13 +1422,13 @@ static int process_perf(struct ib_device *ibdev, u8 port_num,
port_num);
goto bail;
default:
pmp->status |= IB_SMP_UNSUP_METH_ATTR;
pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
ret = reply((struct ib_smp *) pmp);
goto bail;
}

case IB_MGMT_METHOD_SET:
switch (pmp->attr_id) {
switch (pmp->mad_hdr.attr_id) {
case IB_PMA_PORT_SAMPLES_CONTROL:
ret = recv_pma_set_portsamplescontrol(pmp, ibdev,
port_num);
Expand All @@ -1574,7 +1442,7 @@ static int process_perf(struct ib_device *ibdev, u8 port_num,
port_num);
goto bail;
default:
pmp->status |= IB_SMP_UNSUP_METH_ATTR;
pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
ret = reply((struct ib_smp *) pmp);
goto bail;
}
Expand All @@ -1588,7 +1456,7 @@ static int process_perf(struct ib_device *ibdev, u8 port_num,
ret = IB_MAD_RESULT_SUCCESS;
goto bail;
default:
pmp->status |= IB_SMP_UNSUP_METHOD;
pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD;
ret = reply((struct ib_smp *) pmp);
}

Expand Down
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