From: Daode Huang <huangdaode@hisilicon.com>
To: <davem@davemloft.net>
Cc: <liguozhu@hisilicon.com>, <Yisen.Zhuang@huawei.com>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <netdev@vger.kernel.org>,
<linuxarm@huawei.com>, <salil.mehta@huawei.com>,
<huangdaode@hisilicon.com>, <kenneth-lee-2012@foxmail.com>,
<xuwei5@hisilicon.com>, <lisheng011@huawei.com>,
<yankejian@huawei.com>
Subject: [PATCH V2 net 2/6] net: hns: fixes the hw interrupt bug in using napi
Date: Fri, 11 Mar 2016 17:10:42 +0800 [thread overview]
Message-ID: <1457687446-109867-3-git-send-email-huangdaode@hisilicon.com> (raw)
In-Reply-To: <1457687446-109867-1-git-send-email-huangdaode@hisilicon.com>
In V1 chip, common_poll should check and clean fbd pkts, because it
can not pend irq to clean them if there is no new pkt comes in.
But V2 chip hw fixes this bug, and will pend irq itself to do this.
So, for V2 chip, we set ring_data->fini_process to NULL.
Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Signed-off-by: Sheng Li <lisheng011@huawei.com>
---
drivers/net/ethernet/hisilicon/hns/hns_enet.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 9d46d57..6250a42 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -946,8 +946,8 @@ static int hns_nic_common_poll(struct napi_struct *napi, int budget)
napi_complete(napi);
ring_data->ring->q->handle->dev->ops->toggle_ring_irq(
ring_data->ring, 0);
-
- ring_data->fini_process(ring_data);
+ if (ring_data->fini_process)
+ ring_data->fini_process(ring_data);
return 0;
}
@@ -1710,6 +1710,7 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
{
struct hnae_handle *h = priv->ae_handle;
struct hns_nic_ring_data *rd;
+ bool is_ver1 = AE_IS_VER1(priv->enet_ver);
int i;
if (h->q_num > NIC_MAX_Q_PER_VF) {
@@ -1727,7 +1728,7 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
rd->queue_index = i;
rd->ring = &h->qs[i]->tx_ring;
rd->poll_one = hns_nic_tx_poll_one;
- rd->fini_process = hns_nic_tx_fini_pro;
+ rd->fini_process = is_ver1 ? hns_nic_tx_fini_pro : NULL;
netif_napi_add(priv->netdev, &rd->napi,
hns_nic_common_poll, NIC_TX_CLEAN_MAX_NUM);
@@ -1739,7 +1740,7 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
rd->ring = &h->qs[i - h->q_num]->rx_ring;
rd->poll_one = hns_nic_rx_poll_one;
rd->ex_process = hns_nic_rx_up_pro;
- rd->fini_process = hns_nic_rx_fini_pro;
+ rd->fini_process = is_ver1 ? hns_nic_rx_fini_pro : NULL;
netif_napi_add(priv->netdev, &rd->napi,
hns_nic_common_poll, NIC_RX_CLEAN_MAX_NUM);
--
1.9.1
next prev parent reply other threads:[~2016-03-11 8:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-11 9:10 [PATCH V2 net 0/6] net: hns: hns driver updates Daode Huang
2016-03-11 9:10 ` [PATCH V2 net 1/6] net: hns: bug fix about the overflow of mss Daode Huang
2016-03-11 9:10 ` Daode Huang [this message]
2016-03-11 9:10 ` [PATCH V2 net 3/6] net: hns: fixed portid bug in sending manage pkt Daode Huang
2016-03-11 9:10 ` [PATCH V2 net 4/6] net: hns: adds uc match for debug port Daode Huang
2016-03-11 9:10 ` [PATCH V2 net 5/6] net: hns: fixed service-ges setting MAC-addr bug Daode Huang
2016-03-11 9:10 ` [PATCH V2 net 6/6] net: hns: bug fix of getting hilink status Daode Huang
2016-03-15 1:56 ` [PATCH V2 net 0/6] net: hns: hns driver updates Daode Huang
2016-03-15 2:45 ` David Miller
2016-03-15 6:43 ` Daode Huang
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