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Code Issues Releases Activity

cxgbe(4): Add the ability to dump mailbox commands and replies. It is

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enabled/disabled via bit 0 of adapter->debug_flags (which is available
at dev.t5nex.<n>.debug_flags).

MFC after:	1 week
This commit is contained in:
Navdeep Parhar 2015-06-16 12:36:29 +00:00
parent 9ef8328d52
commit 0e4cd4a2e0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=284445
3 changed files with 32 additions and 0 deletions
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22
sys/dev/cxgbe/adapter.h
View File

@ -206,6 +206,9 @@ enum {
INTR_OFLD_RXQ = (1 << 5), /* All TOE rxq's take interrupts */
INTR_NM_RXQ = (1 << 6), /* All netmap rxq's take interrupts */
INTR_ALL = (INTR_RXQ | INTR_OFLD_RXQ | INTR_NM_RXQ),
/* adapter debug_flags */
DF_DUMP_MBOX = (1 << 0),
};
#define IS_DOOMED(pi) ((pi)->flags & DOOMED)
@ -762,6 +765,7 @@ struct adapter {
int active_ulds; /* ULDs activated on this adapter */
#endif
int flags;
int debug_flags;
char ifp_lockname[16];
struct mtx ifp_lock;
@ -846,6 +850,24 @@ struct adapter {
#define TXQ_LOCK_ASSERT_OWNED(txq) EQ_LOCK_ASSERT_OWNED(&(txq)->eq)
#define TXQ_LOCK_ASSERT_NOTOWNED(txq) EQ_LOCK_ASSERT_NOTOWNED(&(txq)->eq)
#define CH_DUMP_MBOX(sc, mbox, data_reg) \
do { \
if (sc->debug_flags & DF_DUMP_MBOX) { \
log(LOG_NOTICE, \
"%s mbox %u: %016llx %016llx %016llx %016llx " \
"%016llx %016llx %016llx %016llx\n", \
device_get_nameunit(sc->dev), mbox, \
(unsigned long long)t4_read_reg64(sc, data_reg), \
(unsigned long long)t4_read_reg64(sc, data_reg + 8), \
(unsigned long long)t4_read_reg64(sc, data_reg + 16), \
(unsigned long long)t4_read_reg64(sc, data_reg + 24), \
(unsigned long long)t4_read_reg64(sc, data_reg + 32), \
(unsigned long long)t4_read_reg64(sc, data_reg + 40), \
(unsigned long long)t4_read_reg64(sc, data_reg + 48), \
(unsigned long long)t4_read_reg64(sc, data_reg + 56)); \
} \
} while (0)
#define for_each_txq(pi, iter, q) \
for (q = &pi->adapter->sge.txq[pi->first_txq], iter = 0; \
iter < pi->ntxq; ++iter, ++q)

4
sys/dev/cxgbe/common/t4_hw.c
View File

@ -262,6 +262,8 @@ int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
for (i = 0; i < size; i += 8, p++)
t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));
CH_DUMP_MBOX(adap, mbox, data_reg);
t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
t4_read_reg(adap, ctl_reg); /* flush write */
@ -287,6 +289,8 @@ int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
continue;
}
CH_DUMP_MBOX(adap, mbox, data_reg);
res = t4_read_reg64(adap, data_reg);
if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
fw_asrt(adap, data_reg);

6
sys/dev/cxgbe/t4_main.c
View File

@ -585,6 +585,9 @@ t4_attach(device_t dev)
sc = device_get_softc(dev);
sc->dev = dev;
#ifdef INVARIANTS
sc->debug_flags = DF_DUMP_MBOX;
#endif
pci_enable_busmaster(dev);
if (pci_find_cap(dev, PCIY_EXPRESS, &i) == 0) {
@ -4603,6 +4606,9 @@ t4_sysctls(struct adapter *sc)
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "lro_timeout", CTLFLAG_RW,
&sc->lro_timeout, 0, "lro inactive-flush timeout (in us)");
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "debug_flags", CTLFLAG_RW,
&sc->debug_flags, 0, "flags to enable runtime debugging");
#ifdef SBUF_DRAIN
/*
* dev.t4nex.X.misc. Marked CTLFLAG_SKIP to avoid information overload.