diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx_edma.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c index 6140db5960c3..dc040cd4ab06 100644 --- a/drivers/net/wireless/ath/wil6210/txrx_edma.c +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c @@ -26,6 +26,10 @@ #include "txrx.h" #include "trace.h" +/* Max number of entries (packets to complete) to update the hwtail of tx + * status ring. Should be power of 2 + */ +#define WIL_EDMA_TX_SRING_UPDATE_HW_TAIL 128 #define WIL_EDMA_MAX_DATA_OFFSET (2) /* RX buffer size must be aligned to 4 bytes */ #define WIL_EDMA_RX_BUF_LEN_DEFAULT (2048) @@ -1155,7 +1159,7 @@ int wil_tx_sring_handler(struct wil6210_priv *wil, struct wil_net_stats *stats; struct wil_tx_enhanced_desc *_d; unsigned int ring_id; - unsigned int num_descs; + unsigned int num_descs, num_statuses = 0; int i; u8 dr_bit; /* Descriptor Ready bit */ struct wil_ring_tx_status msg; @@ -1276,6 +1280,11 @@ int wil_tx_sring_handler(struct wil6210_priv *wil, } again: + num_statuses++; + if (num_statuses % WIL_EDMA_TX_SRING_UPDATE_HW_TAIL == 0) + /* update HW tail to allow HW to push new statuses */ + wil_w(wil, sring->hwtail, sring->swhead); + wil_sring_advance_swhead(sring); wil_get_next_tx_status_msg(sring, &msg); @@ -1286,8 +1295,9 @@ again: if (desc_cnt) wil_update_net_queues(wil, vif, NULL, false); - /* Update the HW tail ptr (RD ptr) */ - wil_w(wil, sring->hwtail, (sring->swhead - 1) % sring->size); + if (num_statuses % WIL_EDMA_TX_SRING_UPDATE_HW_TAIL != 0) + /* Update the HW tail ptr (RD ptr) */ + wil_w(wil, sring->hwtail, (sring->swhead - 1) % sring->size); return desc_cnt; } |