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Subject[PATCH v2 10/50] wilc1000: factor initialization of tx queue-specific packet fields
Date
This ensures that the fields are initialized consistently for all
packets on the tx queues.

Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
---
.../net/wireless/microchip/wilc1000/wlan.c | 45 ++++++++++---------
1 file changed, 24 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index 77dd91c23faad..781c40f2c930c 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -12,8 +12,12 @@

#define WAKE_UP_TRIAL_RETRY 10000

+#define NOT_TCP_ACK (-1)
+
static const u8 factors[NQUEUES] = {1, 1, 1, 1};

+static void tcp_process(struct net_device *, struct txq_entry_t *);
+
static inline bool is_wilc1000(u32 id)
{
return (id & (~WILC_CHIP_REV_FIELD)) == WILC_1000_BASE_ID;
@@ -60,13 +64,26 @@ wilc_wlan_txq_remove_from_head(struct wilc *wilc, u8 q_num)
return tqe;
}

-static void wilc_wlan_txq_add_to_tail(struct net_device *dev, u8 q_num,
+static void init_txq_entry(struct txq_entry_t *tqe, struct wilc_vif *vif,
+ u8 type, enum ip_pkt_priority q_num)
+{
+ tqe->vif = vif;
+ tqe->q_num = q_num;
+ tqe->type = type;
+ tqe->ack_idx = NOT_TCP_ACK;
+}
+
+static void wilc_wlan_txq_add_to_tail(struct net_device *dev, u8 type, u8 q_num,
struct txq_entry_t *tqe)
{
unsigned long flags;
struct wilc_vif *vif = netdev_priv(dev);
struct wilc *wilc = vif->wilc;

+ init_txq_entry(tqe, vif, type, q_num);
+ if (type == WILC_NET_PKT && vif->ack_filter.enabled)
+ tcp_process(dev, tqe);
+
spin_lock_irqsave(&wilc->txq_spinlock, flags);

list_add_tail(&tqe->list, &wilc->txq[q_num].txq_head.list);
@@ -78,12 +95,14 @@ static void wilc_wlan_txq_add_to_tail(struct net_device *dev, u8 q_num,
wake_up_interruptible(&wilc->txq_event);
}

-static void wilc_wlan_txq_add_to_head(struct wilc_vif *vif, u8 q_num,
+static void wilc_wlan_txq_add_to_head(struct wilc_vif *vif, u8 type, u8 q_num,
struct txq_entry_t *tqe)
{
unsigned long flags;
struct wilc *wilc = vif->wilc;

+ init_txq_entry(tqe, vif, type, q_num);
+
mutex_lock(&wilc->txq_add_to_head_cs);

spin_lock_irqsave(&wilc->txq_spinlock, flags);
@@ -97,8 +116,6 @@ static void wilc_wlan_txq_add_to_head(struct wilc_vif *vif, u8 q_num,
wake_up_interruptible(&wilc->txq_event);
}

-#define NOT_TCP_ACK (-1)
-
static inline void add_tcp_session(struct wilc_vif *vif, u32 src_prt,
u32 dst_prt, u32 seq)
{
@@ -281,16 +298,12 @@ static int wilc_wlan_txq_add_cfg_pkt(struct wilc_vif *vif, u8 *buffer,
return 0;
}

- tqe->type = WILC_CFG_PKT;
tqe->buffer = buffer;
tqe->buffer_size = buffer_size;
tqe->tx_complete_func = NULL;
tqe->priv = NULL;
- tqe->q_num = AC_VO_Q;
- tqe->ack_idx = NOT_TCP_ACK;
- tqe->vif = vif;

- wilc_wlan_txq_add_to_head(vif, AC_VO_Q, tqe);
+ wilc_wlan_txq_add_to_head(vif, WILC_CFG_PKT, AC_VO_Q, tqe);

return 1;
}
@@ -452,15 +465,12 @@ int wilc_wlan_txq_add_net_pkt(struct net_device *dev,
tx_complete_fn(tx_data, 0);
return 0;
}
- tqe->type = WILC_NET_PKT;
tqe->buffer = buffer;
tqe->buffer_size = buffer_size;
tqe->tx_complete_func = tx_complete_fn;
tqe->priv = tx_data;
- tqe->vif = vif;

q_num = ac_classify(wilc, tx_data->skb);
- tqe->q_num = q_num;
if (ac_change(wilc, &q_num)) {
tx_complete_fn(tx_data, 0);
kfree(tqe);
@@ -468,10 +478,7 @@ int wilc_wlan_txq_add_net_pkt(struct net_device *dev,
}

if (is_ac_q_limit(wilc, q_num)) {
- tqe->ack_idx = NOT_TCP_ACK;
- if (vif->ack_filter.enabled)
- tcp_process(dev, tqe);
- wilc_wlan_txq_add_to_tail(dev, q_num, tqe);
+ wilc_wlan_txq_add_to_tail(dev, WILC_NET_PKT, q_num, tqe);
} else {
tx_complete_fn(tx_data, 0);
kfree(tqe);
@@ -505,15 +512,11 @@ int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
tx_complete_fn(priv, 0);
return 0;
}
- tqe->type = WILC_MGMT_PKT;
tqe->buffer = buffer;
tqe->buffer_size = buffer_size;
tqe->tx_complete_func = tx_complete_fn;
tqe->priv = priv;
- tqe->q_num = AC_VO_Q;
- tqe->ack_idx = NOT_TCP_ACK;
- tqe->vif = vif;
- wilc_wlan_txq_add_to_tail(dev, AC_VO_Q, tqe);
+ wilc_wlan_txq_add_to_tail(dev, WILC_MGMT_PKT, AC_VO_Q, tqe);
return 1;
}

--
2.25.1
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