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path: root/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
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Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c')
-rw-r--r--drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c39
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
index 5ac474683c98..02a986cdbb39 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
@@ -471,12 +471,46 @@ static void nicvf_get_ringparam(struct net_device *netdev,
struct nicvf *nic = netdev_priv(netdev);
struct queue_set *qs = nic->qs;
- ring->rx_max_pending = MAX_RCV_BUF_COUNT;
- ring->rx_pending = qs->rbdr_len;
+ ring->rx_max_pending = MAX_CMP_QUEUE_LEN;
+ ring->rx_pending = qs->cq_len;
ring->tx_max_pending = MAX_SND_QUEUE_LEN;
ring->tx_pending = qs->sq_len;
}
+static int nicvf_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct nicvf *nic = netdev_priv(netdev);
+ struct queue_set *qs = nic->qs;
+ u32 rx_count, tx_count;
+
+ /* Due to HW errata this is not supported on T88 pass 1.x silicon */
+ if (pass1_silicon(nic->pdev))
+ return -EINVAL;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+
+ tx_count = clamp_t(u32, ring->tx_pending,
+ MIN_SND_QUEUE_LEN, MAX_SND_QUEUE_LEN);
+ rx_count = clamp_t(u32, ring->rx_pending,
+ MIN_CMP_QUEUE_LEN, MAX_CMP_QUEUE_LEN);
+
+ if ((tx_count == qs->sq_len) && (rx_count == qs->cq_len))
+ return 0;
+
+ /* Permitted lengths are 1K, 2K, 4K, 8K, 16K, 32K, 64K */
+ qs->sq_len = rounddown_pow_of_two(tx_count);
+ qs->cq_len = rounddown_pow_of_two(rx_count);
+
+ if (netif_running(netdev)) {
+ nicvf_stop(netdev);
+ nicvf_open(netdev);
+ }
+
+ return 0;
+}
+
static int nicvf_get_rss_hash_opts(struct nicvf *nic,
struct ethtool_rxnfc *info)
{
@@ -787,6 +821,7 @@ static const struct ethtool_ops nicvf_ethtool_ops = {
.get_regs = nicvf_get_regs,
.get_coalesce = nicvf_get_coalesce,
.get_ringparam = nicvf_get_ringparam,
+ .set_ringparam = nicvf_set_ringparam,
.get_rxnfc = nicvf_get_rxnfc,
.set_rxnfc = nicvf_set_rxnfc,
.get_rxfh_key_size = nicvf_get_rxfh_key_size,