diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/hci.h | 16 | ||||
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/mac80211.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/pci.c | 69 |
3 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/hci.h b/drivers/net/wireless/realtek/rtw88/hci.h index 2cba327e6218..4c6fc6fb3f83 100644 --- a/drivers/net/wireless/realtek/rtw88/hci.h +++ b/drivers/net/wireless/realtek/rtw88/hci.h @@ -11,6 +11,7 @@ struct rtw_hci_ops { struct rtw_tx_pkt_info *pkt_info, struct sk_buff *skb); void (*tx_kick_off)(struct rtw_dev *rtwdev); + void (*flush_queues)(struct rtw_dev *rtwdev, u32 queues, bool drop); int (*setup)(struct rtw_dev *rtwdev); int (*start)(struct rtw_dev *rtwdev); void (*stop)(struct rtw_dev *rtwdev); @@ -258,4 +259,19 @@ static inline enum rtw_hci_type rtw_hci_type(struct rtw_dev *rtwdev) return rtwdev->hci.type; } +static inline void rtw_hci_flush_queues(struct rtw_dev *rtwdev, u32 queues, + bool drop) +{ + if (rtwdev->hci.ops->flush_queues) + rtwdev->hci.ops->flush_queues(rtwdev, queues, drop); +} + +static inline void rtw_hci_flush_all_queues(struct rtw_dev *rtwdev, bool drop) +{ + if (rtwdev->hci.ops->flush_queues) + rtwdev->hci.ops->flush_queues(rtwdev, + BIT(rtwdev->hw->queues) - 1, + drop); +} + #endif diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c index 2351dfb0d2e2..333df6b38113 100644 --- a/drivers/net/wireless/realtek/rtw88/mac80211.c +++ b/drivers/net/wireless/realtek/rtw88/mac80211.c @@ -520,6 +520,7 @@ static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, hw_key_type, hw_key_idx); break; case DISABLE_KEY: + rtw_hci_flush_all_queues(rtwdev, false); rtw_mac_flush_all_queues(rtwdev, false); rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx); break; @@ -670,6 +671,7 @@ static void rtw_ops_flush(struct ieee80211_hw *hw, mutex_lock(&rtwdev->mutex); rtw_leave_lps_deep(rtwdev); + rtw_hci_flush_queues(rtwdev, queues, drop); rtw_mac_flush_queues(rtwdev, queues, drop); mutex_unlock(&rtwdev->mutex); } diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c index 786a48649946..b8115b31839e 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.c +++ b/drivers/net/wireless/realtek/rtw88/pci.c @@ -671,6 +671,8 @@ static u8 ac_to_hwq[] = { [IEEE80211_AC_BK] = RTW_TX_QUEUE_BK, }; +static_assert(ARRAY_SIZE(ac_to_hwq) == IEEE80211_NUM_ACS); + static u8 rtw_hw_queue_mapping(struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; @@ -727,6 +729,72 @@ static void rtw_pci_dma_check(struct rtw_dev *rtwdev, rtwpci->rx_tag = (rtwpci->rx_tag + 1) % RX_TAG_MAX; } +static u32 __pci_get_hw_tx_ring_rp(struct rtw_dev *rtwdev, u8 pci_q) +{ + u32 bd_idx_addr = rtw_pci_tx_queue_idx_addr[pci_q]; + u32 bd_idx = rtw_read16(rtwdev, bd_idx_addr + 2); + + return FIELD_GET(TRX_BD_IDX_MASK, bd_idx); +} + +static void __pci_flush_queue(struct rtw_dev *rtwdev, u8 pci_q, bool drop) +{ + struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; + struct rtw_pci_tx_ring *ring = &rtwpci->tx_rings[pci_q]; + u32 cur_rp; + u8 i; + + /* Because the time taked by the I/O in __pci_get_hw_tx_ring_rp is a + * bit dynamic, it's hard to define a reasonable fixed total timeout to + * use read_poll_timeout* helper. Instead, we can ensure a reasonable + * polling times, so we just use for loop with udelay here. + */ + for (i = 0; i < 30; i++) { + cur_rp = __pci_get_hw_tx_ring_rp(rtwdev, pci_q); + if (cur_rp == ring->r.wp) + return; + + udelay(1); + } + + if (!drop) + rtw_warn(rtwdev, "timed out to flush pci tx ring[%d]\n", pci_q); +} + +static void __rtw_pci_flush_queues(struct rtw_dev *rtwdev, u32 pci_queues, + bool drop) +{ + u8 q; + + for (q = 0; q < RTK_MAX_TX_QUEUE_NUM; q++) { + /* It may be not necessary to flush BCN and H2C tx queues. */ + if (q == RTW_TX_QUEUE_BCN || q == RTW_TX_QUEUE_H2C) + continue; + + if (pci_queues & BIT(q)) + __pci_flush_queue(rtwdev, q, drop); + } +} + +static void rtw_pci_flush_queues(struct rtw_dev *rtwdev, u32 queues, bool drop) +{ + u32 pci_queues = 0; + u8 i; + + /* If all of the hardware queues are requested to flush, + * flush all of the pci queues. + */ + if (queues == BIT(rtwdev->hw->queues) - 1) { + pci_queues = BIT(RTK_MAX_TX_QUEUE_NUM) - 1; + } else { + for (i = 0; i < rtwdev->hw->queues; i++) + if (queues & BIT(i)) + pci_queues |= BIT(ac_to_hwq[i]); + } + + __rtw_pci_flush_queues(rtwdev, pci_queues, drop); +} + static void rtw_pci_tx_kick_off_queue(struct rtw_dev *rtwdev, u8 queue) { struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; @@ -1490,6 +1558,7 @@ static void rtw_pci_destroy(struct rtw_dev *rtwdev, struct pci_dev *pdev) static struct rtw_hci_ops rtw_pci_ops = { .tx_write = rtw_pci_tx_write, .tx_kick_off = rtw_pci_tx_kick_off, + .flush_queues = rtw_pci_flush_queues, .setup = rtw_pci_setup, .start = rtw_pci_start, .stop = rtw_pci_stop, |