diff options
| -rw-r--r-- | drivers/net/benet/be_main.c | 85 |
1 files changed, 56 insertions, 29 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 9bbf447..2db879c 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -993,6 +993,56 @@ static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index) kfree_skb(sent_skb); } +static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj) +{ + struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); + + if (!eqe->evt) + return NULL; + + eqe->evt = le32_to_cpu(eqe->evt); + queue_tail_inc(&eq_obj->q); + return eqe; +} + +static int event_handle(struct be_adapter *adapter, + struct be_eq_obj *eq_obj) +{ + struct be_eq_entry *eqe; + u16 num = 0; + + while ((eqe = event_get(eq_obj)) != NULL) { + eqe->evt = 0; + num++; + } + + /* Deal with any spurious interrupts that come + * without events + */ + be_eq_notify(adapter, eq_obj->q.id, true, true, num); + if (num) + napi_schedule(&eq_obj->napi); + + return num; +} + +/* Just read and notify events without processing them. + * Used at the time of destroying event queues */ +static void be_eq_clean(struct be_adapter *adapter, + struct be_eq_obj *eq_obj) +{ + struct be_eq_entry *eqe; + u16 num = 0; + + while ((eqe = event_get(eq_obj)) != NULL) { + eqe->evt = 0; + num++; + } + + if (num) + be_eq_notify(adapter, eq_obj->q.id, false, true, num); +} + static void be_rx_q_clean(struct be_adapter *adapter) { struct be_rx_page_info *page_info; @@ -1114,6 +1164,9 @@ static void be_tx_queues_destroy(struct be_adapter *adapter) be_cmd_q_destroy(adapter, q, QTYPE_CQ); be_queue_free(adapter, q); + /* Clear any residual events */ + be_eq_clean(adapter, &adapter->tx_eq); + q = &adapter->tx_eq.q; if (q->created) be_cmd_q_destroy(adapter, q, QTYPE_EQ); @@ -1185,6 +1238,9 @@ static void be_rx_queues_destroy(struct be_adapter *adapter) be_cmd_q_destroy(adapter, q, QTYPE_CQ); be_queue_free(adapter, q); + /* Clear any residual events */ + be_eq_clean(adapter, &adapter->rx_eq); + q = &adapter->rx_eq.q; if (q->created) be_cmd_q_destroy(adapter, q, QTYPE_EQ); @@ -1251,35 +1307,6 @@ rx_eq_free: be_queue_free(adapter, eq); return rc; } -static bool event_get(struct be_eq_obj *eq_obj, u16 *rid) -{ - struct be_eq_entry *entry = queue_tail_node(&eq_obj->q); - u32 evt = entry->evt; - - if (!evt) - return false; - - evt = le32_to_cpu(evt); - *rid = (evt >> EQ_ENTRY_RES_ID_SHIFT) & EQ_ENTRY_RES_ID_MASK; - entry->evt = 0; - queue_tail_inc(&eq_obj->q); - return true; -} - -static int event_handle(struct be_adapter *adapter, struct be_eq_obj *eq_obj) -{ - u16 rid = 0, num = 0; - - while (event_get(eq_obj, &rid)) - num++; - - /* We can see an interrupt and no event */ - be_eq_notify(adapter, eq_obj->q.id, true, true, num); - if (num) - napi_schedule(&eq_obj->napi); - - return num; -} static irqreturn_t be_intx(int irq, void *dev) { |