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qede: Update receive statistic once per NAPI 

Currently, each time an ingress packet is passed to networking stack
the driver increments a per-queue SW statistic.
As we want to have additional fields in the first cache-line of the
Rx-queue struct, change flow so this statistic would be updated once per
NAPI run. We will later push the statistic to a different cache line.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Mintz, Yuval 2017-04-07 11:04:57 +03:00 committed by David S. Miller
parent 1ca221262e
commit 10a0176e4e
1 changed files with 11 additions and 10 deletions
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21
drivers/net/ethernet/qlogic/qede/qede_fp.c
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@ -624,7 +624,6 @@ static inline void qede_skb_receive(struct qede_dev *edev,
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
napi_gro_receive(&fp->napi, skb);
rxq->rcv_pkts++;
}
static void qede_set_gro_params(struct qede_dev *edev,
@ -884,9 +883,9 @@ static inline void qede_tpa_cont(struct qede_dev *edev,
"Strange - TPA cont with more than a single len_list entry\n");
}
static void qede_tpa_end(struct qede_dev *edev,
struct qede_fastpath *fp,
struct eth_fast_path_rx_tpa_end_cqe *cqe)
static int qede_tpa_end(struct qede_dev *edev,
struct qede_fastpath *fp,
struct eth_fast_path_rx_tpa_end_cqe *cqe)
{
struct qede_rx_queue *rxq = fp->rxq;
struct qede_agg_info *tpa_info;
@ -934,11 +933,12 @@ static void qede_tpa_end(struct qede_dev *edev,
tpa_info->state = QEDE_AGG_STATE_NONE;
return;
return 1;
err:
tpa_info->state = QEDE_AGG_STATE_NONE;
dev_kfree_skb_any(tpa_info->skb);
tpa_info->skb = NULL;
return 0;
}
static u8 qede_check_notunn_csum(u16 flag)
@ -1178,8 +1178,7 @@ static int qede_rx_process_tpa_cqe(struct qede_dev *edev,
qede_tpa_cont(edev, rxq, &cqe->fast_path_tpa_cont);
return 0;
case ETH_RX_CQE_TYPE_TPA_END:
qede_tpa_end(edev, fp, &cqe->fast_path_tpa_end);
return 1;
return qede_tpa_end(edev, fp, &cqe->fast_path_tpa_end);
default:
return 0;
}
@ -1229,7 +1228,7 @@ static int qede_rx_process_cqe(struct qede_dev *edev,
/* Run eBPF program if one is attached */
if (xdp_prog)
if (!qede_rx_xdp(edev, fp, rxq, xdp_prog, bd, fp_cqe))
return 1;
return 0;
/* If this is an error packet then drop it */
flags = cqe->fast_path_regular.pars_flags.flags;
@ -1290,8 +1289,8 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget)
{
struct qede_rx_queue *rxq = fp->rxq;
struct qede_dev *edev = fp->edev;
int work_done = 0, rcv_pkts = 0;
u16 hw_comp_cons, sw_comp_cons;
int work_done = 0;
hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr);
sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring);
@ -1305,12 +1304,14 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget)
/* Loop to complete all indicated BDs */
while ((sw_comp_cons != hw_comp_cons) && (work_done < budget)) {
qede_rx_process_cqe(edev, fp, rxq);
rcv_pkts += qede_rx_process_cqe(edev, fp, rxq);
qed_chain_recycle_consumed(&rxq->rx_comp_ring);
sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring);
work_done++;
}
rxq->rcv_pkts += rcv_pkts;
/* Allocate replacement buffers */
while (rxq->num_rx_buffers - rxq->filled_buffers)
if (qede_alloc_rx_buffer(rxq, false))