[dpdk-dev] [PATCH] net/mlx5: fix flow application order on stop/start
Nelio Laranjeiro
nelio.laranjeiro at 6wind.com
Mon May 29 11:40:58 CEST 2017
Flow rules must be applied in the same order as they have been created and
thus destroyed in the reverse order.
Fixes: 2097d0d1e2cc ("net/mlx5: support basic flow items and actions")
Cc: stable at dpdk.org
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
Acked-by: Yongseok Koh <yskoh at mellanox.com>
---
drivers/net/mlx5/mlx5.c | 1 +
drivers/net/mlx5/mlx5.h | 2 +-
drivers/net/mlx5/mlx5_flow.c | 27 +++++++++++----------------
3 files changed, 13 insertions(+), 17 deletions(-)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index fc99c0d..bcb2c1b 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -789,6 +789,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
eth_dev->device->driver = &mlx5_driver.driver;
priv->dev = eth_dev;
eth_dev->dev_ops = &mlx5_dev_ops;
+ TAILQ_INIT(&priv->flows);
/* Bring Ethernet device up. */
DEBUG("forcing Ethernet interface up");
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 67fd742..1148dee 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -155,7 +155,7 @@ struct priv {
struct fdir_filter_list *fdir_filter_list; /* Flow director rules. */
struct fdir_queue *fdir_drop_queue; /* Flow director drop queue. */
struct rte_flow_drop *flow_drop_queue; /* Flow drop queue. */
- LIST_HEAD(mlx5_flows, rte_flow) flows; /* RTE Flow rules. */
+ TAILQ_HEAD(mlx5_flows, rte_flow) flows; /* RTE Flow rules. */
uint32_t link_speed_capa; /* Link speed capabilities. */
struct mlx5_xstats_ctrl xstats_ctrl; /* Extended stats control. */
rte_spinlock_t lock; /* Lock for control functions. */
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index adcbe3f..8b3957b 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -91,7 +91,7 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
void *data);
struct rte_flow {
- LIST_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
+ TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
struct ibv_exp_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
struct ibv_exp_rwq_ind_table *ind_table; /**< Indirection table. */
struct ibv_qp *qp; /**< Verbs queue pair. */
@@ -1230,7 +1230,7 @@ mlx5_flow_create(struct rte_eth_dev *dev,
priv_lock(priv);
flow = priv_flow_create(priv, attr, items, actions, error);
if (flow) {
- LIST_INSERT_HEAD(&priv->flows, flow, next);
+ TAILQ_INSERT_TAIL(&priv->flows, flow, next);
DEBUG("Flow created %p", (void *)flow);
}
priv_unlock(priv);
@@ -1249,8 +1249,7 @@ static void
priv_flow_destroy(struct priv *priv,
struct rte_flow *flow)
{
- (void)priv;
- LIST_REMOVE(flow, next);
+ TAILQ_REMOVE(&priv->flows, flow, next);
if (flow->ibv_flow)
claim_zero(ibv_exp_destroy_flow(flow->ibv_flow));
if (flow->drop)
@@ -1275,9 +1274,9 @@ priv_flow_destroy(struct priv *priv,
*/
for (queue_n = 0; queue_n < flow->rxqs_n; ++queue_n) {
rxq = flow->rxqs[queue_n];
- for (tmp = LIST_FIRST(&priv->flows);
+ for (tmp = TAILQ_FIRST(&priv->flows);
tmp;
- tmp = LIST_NEXT(tmp, next)) {
+ tmp = TAILQ_NEXT(tmp, next)) {
uint32_t tqueue_n;
if (tmp->drop)
@@ -1330,10 +1329,10 @@ mlx5_flow_destroy(struct rte_eth_dev *dev,
static void
priv_flow_flush(struct priv *priv)
{
- while (!LIST_EMPTY(&priv->flows)) {
+ while (!TAILQ_EMPTY(&priv->flows)) {
struct rte_flow *flow;
- flow = LIST_FIRST(&priv->flows);
+ flow = TAILQ_FIRST(&priv->flows);
priv_flow_destroy(priv, flow);
}
}
@@ -1494,9 +1493,7 @@ priv_flow_stop(struct priv *priv)
{
struct rte_flow *flow;
- for (flow = LIST_FIRST(&priv->flows);
- flow;
- flow = LIST_NEXT(flow, next)) {
+ TAILQ_FOREACH_REVERSE(flow, &priv->flows, mlx5_flows, next) {
claim_zero(ibv_exp_destroy_flow(flow->ibv_flow));
flow->ibv_flow = NULL;
if (flow->mark) {
@@ -1528,9 +1525,7 @@ priv_flow_start(struct priv *priv)
ret = priv_flow_create_drop_queue(priv);
if (ret)
return -1;
- for (flow = LIST_FIRST(&priv->flows);
- flow;
- flow = LIST_NEXT(flow, next)) {
+ TAILQ_FOREACH(flow, &priv->flows, next) {
struct ibv_qp *qp;
if (flow->drop)
@@ -1570,9 +1565,9 @@ priv_flow_rxq_in_use(struct priv *priv, struct rxq *rxq)
{
struct rte_flow *flow;
- for (flow = LIST_FIRST(&priv->flows);
+ for (flow = TAILQ_FIRST(&priv->flows);
flow;
- flow = LIST_NEXT(flow, next)) {
+ flow = TAILQ_NEXT(flow, next)) {
unsigned int n;
if (flow->drop)
--
2.1.4
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