From: Neel Patel neel@pensando.io
[ Upstream commit e55f0f5befc26e2ba6bb8c1f945ea8e37ee0e334 ]
The same pre-work code is used before each call to ionic_rx_fill(), so bring it in and make it a part of the routine.
Signed-off-by: Neel Patel neel@pensando.io Signed-off-by: Shannon Nelson snelson@pensando.io Signed-off-by: Jakub Kicinski kuba@kernel.org Stable-dep-of: b69585bfcece ("ionic: missed doorbell workaround") Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/ethernet/pensando/ionic/ionic_txrx.c | 23 ++++++++++--------- 1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c index c03986bf26289..7977de4d67b76 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c @@ -348,16 +348,25 @@ void ionic_rx_fill(struct ionic_queue *q) struct ionic_rxq_sg_desc *sg_desc; struct ionic_rxq_sg_elem *sg_elem; struct ionic_buf_info *buf_info; + unsigned int fill_threshold; struct ionic_rxq_desc *desc; unsigned int remain_len; unsigned int frag_len; unsigned int nfrags; + unsigned int n_fill; unsigned int i, j; unsigned int len;
+ n_fill = ionic_q_space_avail(q); + + fill_threshold = min_t(unsigned int, IONIC_RX_FILL_THRESHOLD, + q->num_descs / IONIC_RX_FILL_DIV); + if (n_fill < fill_threshold) + return; + len = netdev->mtu + ETH_HLEN + VLAN_HLEN;
- for (i = ionic_q_space_avail(q); i; i--) { + for (i = n_fill; i; i--) { nfrags = 0; remain_len = len; desc_info = &q->info[q->head_idx]; @@ -511,7 +520,6 @@ int ionic_rx_napi(struct napi_struct *napi, int budget) struct ionic_cq *cq = napi_to_cq(napi); struct ionic_dev *idev; struct ionic_lif *lif; - u16 rx_fill_threshold; u32 work_done = 0; u32 flags = 0;
@@ -521,10 +529,7 @@ int ionic_rx_napi(struct napi_struct *napi, int budget) work_done = ionic_cq_service(cq, budget, ionic_rx_service, NULL, NULL);
- rx_fill_threshold = min_t(u16, IONIC_RX_FILL_THRESHOLD, - cq->num_descs / IONIC_RX_FILL_DIV); - if (work_done && ionic_q_space_avail(cq->bound_q) >= rx_fill_threshold) - ionic_rx_fill(cq->bound_q); + ionic_rx_fill(cq->bound_q);
if (work_done < budget && napi_complete_done(napi, work_done)) { ionic_dim_update(qcq, IONIC_LIF_F_RX_DIM_INTR); @@ -550,7 +555,6 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget) struct ionic_dev *idev; struct ionic_lif *lif; struct ionic_cq *txcq; - u16 rx_fill_threshold; u32 rx_work_done = 0; u32 tx_work_done = 0; u32 flags = 0; @@ -565,10 +569,7 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget) rx_work_done = ionic_cq_service(rxcq, budget, ionic_rx_service, NULL, NULL);
- rx_fill_threshold = min_t(u16, IONIC_RX_FILL_THRESHOLD, - rxcq->num_descs / IONIC_RX_FILL_DIV); - if (rx_work_done && ionic_q_space_avail(rxcq->bound_q) >= rx_fill_threshold) - ionic_rx_fill(rxcq->bound_q); + ionic_rx_fill(rxcq->bound_q);
if (rx_work_done < budget && napi_complete_done(napi, rx_work_done)) { ionic_dim_update(qcq, 0);