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Subject[PATCH net-next 22/23] {topost} net: hns3: set the max ring num when alloc netdev
Date
HNS3 driver should alloc netdev with max support ring num, as
driver support change netdev count by ethtool -L.

Signed-off-by: Peng Li <lipeng321@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 27 ++++++++++++-------------
1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index b02f3ff..94f0b92 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -255,6 +255,16 @@ static int hns3_nic_set_real_num_queue(struct net_device *netdev)
return 0;
}

+static u16 hns3_get_max_available_channels(struct hnae3_handle *h)
+{
+ u16 free_tqps, max_rss_size, max_tqps;
+
+ h->ae_algo->ops->get_tqps_and_rss_info(h, &free_tqps, &max_rss_size);
+ max_tqps = h->kinfo.num_tc * max_rss_size;
+
+ return min_t(u16, max_tqps, (free_tqps + h->kinfo.num_tqps));
+}
+
static int hns3_nic_net_up(struct net_device *netdev)
{
struct hns3_nic_priv *priv = netdev_priv(netdev);
@@ -3062,7 +3072,7 @@ static int hns3_client_init(struct hnae3_handle *handle)
int ret;

netdev = alloc_etherdev_mq(sizeof(struct hns3_nic_priv),
- handle->kinfo.num_tqps);
+ hns3_get_max_available_channels(handle));
if (!netdev)
return -ENOMEM;

@@ -3401,17 +3411,6 @@ static int hns3_reset_notify(struct hnae3_handle *handle,
return ret;
}

-static u16 hns3_get_max_available_channels(struct net_device *netdev)
-{
- struct hnae3_handle *h = hns3_get_handle(netdev);
- u16 free_tqps, max_rss_size, max_tqps;
-
- h->ae_algo->ops->get_tqps_and_rss_info(h, &free_tqps, &max_rss_size);
- max_tqps = h->kinfo.num_tc * max_rss_size;
-
- return min_t(u16, max_tqps, (free_tqps + h->kinfo.num_tqps));
-}
-
static void hns3_restore_coal(struct hns3_nic_priv *priv,
struct hns3_enet_coalesce *tx,
struct hns3_enet_coalesce *rx)
@@ -3488,12 +3487,12 @@ int hns3_set_channels(struct net_device *netdev,
if (ch->rx_count || ch->tx_count)
return -EINVAL;

- if (new_tqp_num > hns3_get_max_available_channels(netdev) ||
+ if (new_tqp_num > hns3_get_max_available_channels(h) ||
new_tqp_num < kinfo->num_tc) {
dev_err(&netdev->dev,
"Change tqps fail, the tqp range is from %d to %d",
kinfo->num_tc,
- hns3_get_max_available_channels(netdev));
+ hns3_get_max_available_channels(h));
return -EINVAL;
}

--
2.9.3
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