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cxgbe(4): Auto-dump the CIM block's logic analyzer on a TIMER0 interrupt.

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Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2019-02-07 05:40:51 +00:00
parent 286fd42ba6
commit 644b22ae36
3 changed files with 79 additions and 68 deletions
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1
sys/dev/cxgbe/adapter.h
View File

@ -1164,6 +1164,7 @@ void free_atid(struct adapter *, int);
void release_tid(struct adapter *, int, struct sge_wrq *);
int cxgbe_media_change(struct ifnet *);
void cxgbe_media_status(struct ifnet *, struct ifmediareq *);
bool t4_os_dump_cimla(struct adapter *, int, bool);
void t4_os_dump_devlog(struct adapter *);
#ifdef DEV_NETMAP

6
sys/dev/cxgbe/common/t4_hw.c
View File

@ -4356,6 +4356,10 @@ static bool sge_intr_handler(struct adapter *adap, int arg, bool verbose)
*/
static bool cim_intr_handler(struct adapter *adap, int arg, bool verbose)
{
static const struct intr_action cim_host_intr_actions[] = {
{ F_TIMER0INT, 0, t4_os_dump_cimla },
{ 0 },
};
static const struct intr_details cim_host_intr_details[] = {
/* T6+ */
{ F_PCIE2CIMINTFPARERR, "CIM IBQ PCIe interface parity error" },
@ -4400,7 +4404,7 @@ static bool cim_intr_handler(struct adapter *adap, int arg, bool verbose)
.enable_reg = A_CIM_HOST_INT_ENABLE,
.fatal = 0,
.details = cim_host_intr_details,
.actions = NULL,
.actions = cim_host_intr_actions,
};
static const struct intr_details cim_host_upacc_intr_details[] = {
{ F_EEPROMWRINT, "CIM EEPROM came out of busy state" },

140
sys/dev/cxgbe/t4_main.c
View File

@ -648,7 +648,6 @@ static int sysctl_loadavg(SYSCTL_HANDLER_ARGS);
static int sysctl_cctrl(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_ibq_obq(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_la(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_la_t6(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_ma_la(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_pif_la(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_qcfg(SYSCTL_HANDLER_ARGS);
@ -6026,8 +6025,7 @@ t4_sysctls(struct adapter *sc)
sysctl_cim_ibq_obq, "A", "CIM IBQ 5 (NCSI)");
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_la",
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
chip_id(sc) <= CHELSIO_T5 ? sysctl_cim_la : sysctl_cim_la_t6,
CTLTYPE_STRING | CTLFLAG_RD, sc, 0, sysctl_cim_la,
"A", "CIM logic analyzer");
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ma_la",
@ -7249,35 +7247,10 @@ done:
return (rc);
}
static int
sysctl_cim_la(SYSCTL_HANDLER_ARGS)
static void
sbuf_cim_la4(struct adapter *sc, struct sbuf *sb, uint32_t *buf, uint32_t cfg)
{
struct adapter *sc = arg1;
u_int cfg;
struct sbuf *sb;
uint32_t *buf, *p;
int rc;
MPASS(chip_id(sc) <= CHELSIO_T5);
rc = -t4_cim_read(sc, A_UP_UP_DBG_LA_CFG, 1, &cfg);
if (rc != 0)
return (rc);
rc = sysctl_wire_old_buffer(req, 0);
if (rc != 0)
return (rc);
sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
if (sb == NULL)
return (ENOMEM);
buf = malloc(sc->params.cim_la_size * sizeof(uint32_t), M_CXGBE,
M_ZERO | M_WAITOK);
rc = -t4_cim_read_la(sc, buf, NULL);
if (rc != 0)
goto done;
uint32_t *p;
sbuf_printf(sb, "Status Data PC%s",
cfg & F_UPDBGLACAPTPCONLY ? "" :
@ -7302,43 +7275,12 @@ sysctl_cim_la(SYSCTL_HANDLER_ARGS)
p[6], p[7]);
}
}
rc = sbuf_finish(sb);
sbuf_delete(sb);
done:
free(buf, M_CXGBE);
return (rc);
}
static int
sysctl_cim_la_t6(SYSCTL_HANDLER_ARGS)
static void
sbuf_cim_la6(struct adapter *sc, struct sbuf *sb, uint32_t *buf, uint32_t cfg)
{
struct adapter *sc = arg1;
u_int cfg;
struct sbuf *sb;
uint32_t *buf, *p;
int rc;
MPASS(chip_id(sc) > CHELSIO_T5);
rc = -t4_cim_read(sc, A_UP_UP_DBG_LA_CFG, 1, &cfg);
if (rc != 0)
return (rc);
rc = sysctl_wire_old_buffer(req, 0);
if (rc != 0)
return (rc);
sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
if (sb == NULL)
return (ENOMEM);
buf = malloc(sc->params.cim_la_size * sizeof(uint32_t), M_CXGBE,
M_ZERO | M_WAITOK);
rc = -t4_cim_read_la(sc, buf, NULL);
if (rc != 0)
goto done;
uint32_t *p;
sbuf_printf(sb, "Status Inst Data PC%s",
cfg & F_UPDBGLACAPTPCONLY ? "" :
@ -7365,14 +7307,78 @@ sysctl_cim_la_t6(SYSCTL_HANDLER_ARGS)
p[2], p[1], p[0], p[5], p[4], p[3]);
}
}
}
static int
sbuf_cim_la(struct adapter *sc, struct sbuf *sb, int flags)
{
uint32_t cfg, *buf;
int rc;
rc = -t4_cim_read(sc, A_UP_UP_DBG_LA_CFG, 1, &cfg);
if (rc != 0)
return (rc);
MPASS(flags == M_WAITOK || flags == M_NOWAIT);
buf = malloc(sc->params.cim_la_size * sizeof(uint32_t), M_CXGBE,
M_ZERO | flags);
if (buf == NULL)
return (ENOMEM);
rc = -t4_cim_read_la(sc, buf, NULL);
if (rc != 0)
goto done;
if (chip_id(sc) < CHELSIO_T6)
sbuf_cim_la4(sc, sb, buf, cfg);
else
sbuf_cim_la6(sc, sb, buf, cfg);
rc = sbuf_finish(sb);
sbuf_delete(sb);
done:
free(buf, M_CXGBE);
return (rc);
}
static int
sysctl_cim_la(SYSCTL_HANDLER_ARGS)
{
struct adapter *sc = arg1;
struct sbuf *sb;
int rc;
rc = sysctl_wire_old_buffer(req, 0);
if (rc != 0)
return (rc);
sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
if (sb == NULL)
return (ENOMEM);
rc = sbuf_cim_la(sc, sb, M_WAITOK);
if (rc == 0)
rc = sbuf_finish(sb);
sbuf_delete(sb);
return (rc);
}
bool
t4_os_dump_cimla(struct adapter *sc, int arg, bool verbose)
{
struct sbuf sb;
int rc;
if (sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND) != &sb)
return (false);
rc = sbuf_cim_la(sc, &sb, M_NOWAIT);
if (rc == 0) {
rc = sbuf_finish(&sb);
if (rc == 0) {
log(LOG_DEBUG, "%s: CIM LA dump follows.\n%s",
device_get_nameunit(sc->dev), sbuf_data(&sb));
}
}
sbuf_delete(&sb);
return (false);
}
static int
sysctl_cim_ma_la(SYSCTL_HANDLER_ARGS)
{