[PATCH net-next 22/23] {topost} net: hns3: set the max ring num when alloc netdev

[Peng Li]

HNS3 driver should alloc netdev with max support ring num, as
driver support change netdev count by ethtool -L.

Signed-off-by: Peng Li <lipeng...@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