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[hermon] Add event queue debug functions

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Add hermon_dump_eqctx() for dumping the event queue context and
hermon_dump_eqes() for dumping any unconsumed event queue entries.

Originally-implemented-by: Christian Iversen <ci@iversenit.dk>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-01-28 22:01:43 +00:00
parent 7c40227e18
commit 7d32225b55
1 changed files with 76 additions and 2 deletions
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78
src/drivers/infiniband/hermon.c
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@@ -1878,6 +1878,79 @@ static void hermon_poll_cq ( struct ib_device *ibdev,
*************************************************************************** ***************************************************************************
*/ */
/**
* Dump event queue context (for debugging only)
*
* @v hermon Hermon device
* @v hermon_eq Event queue
* @ret rc Return status code
*/
static __attribute__ (( unused )) int
hermon_dump_eqctx ( struct hermon *hermon,
struct hermon_event_queue *hermon_eq ) {
struct hermonprm_eqc eqctx;
int rc;
memset ( &eqctx, 0, sizeof ( eqctx ) );
if ( ( rc = hermon_cmd_query_eq ( hermon, hermon_eq->eqn,
&eqctx ) ) != 0 ) {
DBGC ( hermon, "Hermon %p EQN %#lx QUERY_EQ failed: %s\n",
hermon, hermon_eq->eqn, strerror ( rc ) );
return rc;
}
DBGC ( hermon, "Hermon %p EQN %#lx context:\n",
hermon, hermon_eq->eqn );
DBGC_HDA ( hermon, 0, &eqctx, sizeof ( eqctx ) );
return 0;
}
/**
* Dump unconsumed event queue entries (for debugging only)
*
* @v hermon Hermon device
* @v hermon_eq Event queue
* @ret rc Return status code
*/
static __attribute__ (( unused )) int
hermon_dump_eqes ( struct hermon *hermon,
struct hermon_event_queue *hermon_eq ) {
struct hermonprm_eqc eqctx;
union hermonprm_event_entry *eqe;
unsigned int mask;
unsigned int prod;
unsigned int cons;
unsigned int idx;
int rc;
memset ( &eqctx, 0, sizeof ( eqctx ) );
if ( ( rc = hermon_cmd_query_eq ( hermon, hermon_eq->eqn,
&eqctx ) ) != 0 ) {
DBGC ( hermon, "Hermon %p EQN %#lx QUERY_EQ failed: %s\n",
hermon, hermon_eq->eqn, strerror ( rc ) );
return rc;
}
mask = ( HERMON_NUM_EQES - 1 );
prod = MLX_GET ( &eqctx, producer_counter ) & mask;
cons = MLX_GET ( &eqctx, consumer_counter ) & mask;
idx = hermon_eq->next_idx;
if ( ( idx & mask ) != ( cons & mask ) ) {
DBGC ( hermon, "Hermon %p EQN %#lx mismatch: SW %#x != HW "
"%#x\n", hermon, hermon_eq->eqn, idx, cons );
}
for ( ; ( idx & mask ) != ( prod & mask ) ; idx++ ) {
eqe = &hermon_eq->eqe[idx & mask];
DBGC ( hermon, "Hermon %p EQN %#lx event %#x owner %d type "
"%#02x:%#02x\n", hermon, hermon_eq->eqn, idx,
MLX_GET ( &eqe->generic, owner ),
MLX_GET ( &eqe->generic, event_type ),
MLX_GET ( &eqe->generic, event_sub_type ) );
DBGC_HDA ( hermon, 0, eqe, sizeof ( *eqe ) );
}
return 0;
}
/** /**
* Create event queue * Create event queue
* *
@@ -2084,8 +2157,9 @@ static void hermon_poll_eq ( struct ib_device *ibdev ) {
break; break;
default: default:
DBGC ( hermon, "Hermon %p EQN %#lx unrecognised event " DBGC ( hermon, "Hermon %p EQN %#lx unrecognised event "
"type %#x:\n", "type %#02x:%#02x\n",
hermon, hermon_eq->eqn, event_type ); hermon, hermon_eq->eqn, event_type,
MLX_GET ( &eqe->generic, event_sub_type ) );
DBGC_HDA ( hermon, virt_to_phys ( eqe ), DBGC_HDA ( hermon, virt_to_phys ( eqe ),
eqe, sizeof ( *eqe ) ); eqe, sizeof ( *eqe ) );
break; break;