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destroy_cq() now implemented (not tested).

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This commit is contained in:
Michael Brown
2007-09-16 14:39:51 +01:00
parent 18edcf6634
commit e238bb1e43
3 changed files with 86 additions and 2 deletions
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65
src/drivers/net/mlx_ipoib/mt25218.c
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@@ -270,6 +270,13 @@ static struct net_device_operations mlx_operations = {
/***************************************************************************
*
* Queue number allocation
*
***************************************************************************
*/
/**
* Allocate queue number
*
@@ -444,6 +451,13 @@ arbel_cmd_sw2hw_cq ( struct arbel *arbel, unsigned long cqn,
0, cqctx, cqn, NULL );
}
static inline int
arbel_cmd_hw2sw_cq ( struct arbel *arbel, unsigned long cqn ) {
return arbel_cmd ( arbel,
ARBEL_HCR_VOID_CMD ( ARBEL_HCR_HW2SW_CQ ),
1, NULL, cqn, NULL );
}
/***************************************************************************
*
* Completion queue operations
@@ -548,8 +562,9 @@ static int arbel_create_cq ( struct ib_device *ibdev,
return 0;
err_sw2hw:
memset ( ci_db_rec, 0, sizeof ( *ci_db_rec ) );
memset ( arm_db_rec, 0, sizeof ( *arm_db_rec ) );
MLX_FILL_1 ( ci_db_rec, 1, res, ARBEL_UAR_RES_NONE );
MLX_FILL_1 ( arm_db_rec, 1, res, ARBEL_UAR_RES_NONE );
free_dma ( arbel_cq->cqe, cqe_size );
err_cqe:
free ( arbel_cq );
err_arbel_cq:
@@ -558,6 +573,50 @@ static int arbel_create_cq ( struct ib_device *ibdev,
return rc;
}
/**
* Destroy completion queue
*
* @v ibdev Infiniband device
* @v cq Completion queue
*/
static void arbel_destroy_cq ( struct ib_device *ibdev,
struct ib_completion_queue *cq ) {
struct arbel *arbel = ibdev->priv;
struct arbel_completion_queue *arbel_cq =
container_of ( cq, struct arbel_completion_queue, cq );
struct arbelprm_cq_ci_db_record *ci_db_rec;
struct arbelprm_cq_arm_db_record *arm_db_rec;
int cqn_offset;
size_t cqe_size;
unsigned int ci_doorbell_idx;
unsigned int arm_doorbell_idx;
int rc;
assert ( list_empty ( &cq->work_queues ) );
/* Take ownership back from hardware */
if ( ( rc = arbel_cmd_hw2sw_cq ( arbel, cq->cqn ) ) != 0 ) {
DBGC ( arbel, "Arbel %p FATAL HW2SW_CQ failed: %s\n",
arbel, strerror ( rc ) );
/* Leak memory and return; at least we avoid corruption */
return;
}
/* Clear doorbell records */
cqn_offset = ( cq->cqn - arbel->limits.reserved_cqs );
ci_doorbell_idx = arbel_cq_ci_doorbell_idx ( cqn_offset );
arm_doorbell_idx = arbel_cq_arm_doorbell_idx ( cqn_offset );
ci_db_rec = &arbel->db_rec[ci_doorbell_idx].cq_ci;
arm_db_rec = &arbel->db_rec[arm_doorbell_idx].cq_arm;
MLX_FILL_1 ( ci_db_rec, 1, res, ARBEL_UAR_RES_NONE );
MLX_FILL_1 ( arm_db_rec, 1, res, ARBEL_UAR_RES_NONE );
/* Free memory */
cqe_size = ( cq->num_cqes * sizeof ( arbel_cq->cqe[0] ) );
free_dma ( arbel_cq->cqe, cqe_size );
free ( arbel_cq );
arbel_free_qn_offset ( arbel->cq_inuse, cqn_offset );
}
/***************************************************************************
*
@@ -863,6 +922,8 @@ static void arbel_poll_cq ( struct ib_device *ibdev,
/** Arbel Infiniband operations */
static struct ib_device_operations arbel_ib_operations = {
.create_cq = arbel_create_cq,
.destroy_cq = arbel_destroy_cq,
.post_send = arbel_post_send,
.post_recv = arbel_post_recv,
.poll_cq = arbel_poll_cq,