diff options
| author |   Shannon Nelson <snelson@pensando.io> | 2020-07-31 13:15:34 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-08-03 15:32:02 -0700 |
| commit | 155f15ad6760718288c914962bff8acd39942573 (patch) | |
| tree | c57517b4f9c985b2db20319e1398271e193bbf97 /drivers/net/ethernet/pensando | |
| parent | net: gre: recompute gre csum for sctp over gre tunnels (diff) | |
| download | wireguard-linux-155f15ad6760718288c914962bff8acd39942573.tar.xz wireguard-linux-155f15ad6760718288c914962bff8acd39942573.zip | |
ionic: use fewer firmware doorbells on rx fill
We really don't need to hit the Rx queue doorbell so many times,
we can wait to the end and cause a little less thrash.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/pensando')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_txrx.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c index 85eb8f276a37..e660cd66f9a8 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c @@ -331,9 +331,6 @@ static void ionic_rx_page_free(struct ionic_queue *q, struct page *page, __free_page(page); } -#define IONIC_RX_RING_DOORBELL_STRIDE ((1 << 5) - 1) -#define IONIC_RX_RING_HEAD_BUF_SZ 2048 - void ionic_rx_fill(struct ionic_queue *q) { struct net_device *netdev = q->lif->netdev; @@ -345,7 +342,6 @@ void ionic_rx_fill(struct ionic_queue *q) unsigned int remain_len; unsigned int seg_len; unsigned int nfrags; - bool ring_doorbell; unsigned int i, j; unsigned int len; @@ -360,9 +356,7 @@ void ionic_rx_fill(struct ionic_queue *q) page_info = &desc_info->pages[0]; if (page_info->page) { /* recycle the buffer */ - ring_doorbell = ((q->head->index + 1) & - IONIC_RX_RING_DOORBELL_STRIDE) == 0; - ionic_rxq_post(q, ring_doorbell, ionic_rx_clean, NULL); + ionic_rxq_post(q, false, ionic_rx_clean, NULL); continue; } @@ -401,10 +395,11 @@ void ionic_rx_fill(struct ionic_queue *q) page_info++; } - ring_doorbell = ((q->head->index + 1) & - IONIC_RX_RING_DOORBELL_STRIDE) == 0; - ionic_rxq_post(q, ring_doorbell, ionic_rx_clean, NULL); + ionic_rxq_post(q, false, ionic_rx_clean, NULL); } + + ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type, + q->dbval | q->head->index); } static void ionic_rx_fill_cb(void *arg) |