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path: root/drivers/net/ethernet/mellanox/mlx4
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_clock.c29
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_netdev.c9
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_tx.c18
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4_en.h18
5 files changed, 38 insertions, 38 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_clock.c b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
index 024788549c25..98b5ffb4d729 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
@@ -111,34 +111,27 @@ void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev)
}
/**
- * mlx4_en_phc_adjfreq - adjust the frequency of the hardware clock
+ * mlx4_en_phc_adjfine - adjust the frequency of the hardware clock
* @ptp: ptp clock structure
- * @delta: Desired frequency change in parts per billion
+ * @scaled_ppm: Desired frequency change in scaled parts per million
*
- * Adjust the frequency of the PHC cycle counter by the indicated delta from
- * the base frequency.
+ * Adjust the frequency of the PHC cycle counter by the indicated scaled_ppm
+ * from the base frequency.
+ *
+ * Scaled parts per million is ppm with a 16-bit binary fractional field.
**/
-static int mlx4_en_phc_adjfreq(struct ptp_clock_info *ptp, s32 delta)
+static int mlx4_en_phc_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
{
- u64 adj;
- u32 diff, mult;
- int neg_adj = 0;
+ u32 mult;
unsigned long flags;
struct mlx4_en_dev *mdev = container_of(ptp, struct mlx4_en_dev,
ptp_clock_info);
- if (delta < 0) {
- neg_adj = 1;
- delta = -delta;
- }
- mult = mdev->nominal_c_mult;
- adj = mult;
- adj *= delta;
- diff = div_u64(adj, 1000000000ULL);
+ mult = (u32)adjust_by_scaled_ppm(mdev->nominal_c_mult, scaled_ppm);
write_seqlock_irqsave(&mdev->clock_lock, flags);
timecounter_read(&mdev->clock);
- mdev->cycles.mult = neg_adj ? mult - diff : mult + diff;
+ mdev->cycles.mult = mult;
write_sequnlock_irqrestore(&mdev->clock_lock, flags);
return 0;
@@ -237,7 +230,7 @@ static const struct ptp_clock_info mlx4_en_ptp_clock_info = {
.n_per_out = 0,
.n_pins = 0,
.pps = 0,
- .adjfreq = mlx4_en_phc_adjfreq,
+ .adjfine = mlx4_en_phc_adjfine,
.adjtime = mlx4_en_phc_adjtime,
.gettime64 = mlx4_en_phc_gettime,
.settime64 = mlx4_en_phc_settime,
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index ca4b93a01034..8800d3f1f55c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2337,11 +2337,8 @@ void mlx4_en_destroy_netdev(struct net_device *dev)
en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
/* Unregister device - this will close the port if it was up */
- if (priv->registered) {
- devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev,
- priv->port));
+ if (priv->registered)
unregister_netdev(dev);
- }
if (priv->allocated)
mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
@@ -3474,6 +3471,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
mdev->profile.prof[priv->port].tx_ppp,
mdev->profile.prof[priv->port].tx_pause);
+ SET_NETDEV_DEVLINK_PORT(dev,
+ mlx4_get_devlink_port(mdev->dev, priv->port));
err = register_netdev(dev);
if (err) {
en_err(priv, "Netdev registration failed for port %d\n", port);
@@ -3481,8 +3480,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
}
priv->registered = 1;
- devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port),
- dev);
return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 43a4102e9c09..c5758637b7be 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -65,7 +65,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
ring->size = size;
ring->size_mask = size - 1;
ring->sp_stride = stride;
- ring->full_size = ring->size - HEADROOM - MAX_DESC_TXBBS;
+ ring->full_size = ring->size - HEADROOM - MLX4_MAX_DESC_TXBBS;
tmp = size * sizeof(struct mlx4_en_tx_info);
ring->tx_info = kvmalloc_node(tmp, GFP_KERNEL, node);
@@ -77,9 +77,11 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
ring->tx_info, tmp);
- ring->bounce_buf = kmalloc_node(MAX_DESC_SIZE, GFP_KERNEL, node);
+ ring->bounce_buf = kmalloc_node(MLX4_TX_BOUNCE_BUFFER_SIZE,
+ GFP_KERNEL, node);
if (!ring->bounce_buf) {
- ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
+ ring->bounce_buf = kmalloc(MLX4_TX_BOUNCE_BUFFER_SIZE,
+ GFP_KERNEL);
if (!ring->bounce_buf) {
err = -ENOMEM;
goto err_info;
@@ -909,11 +911,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
/* Align descriptor to TXBB size */
desc_size = ALIGN(real_size, TXBB_SIZE);
nr_txbb = desc_size >> LOG_TXBB_SIZE;
- if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
- if (netif_msg_tx_err(priv))
- en_warn(priv, "Oversized header or SG list\n");
- goto tx_drop_count;
- }
bf_ok = ring->bf_enabled;
if (skb_vlan_tag_present(skb)) {
@@ -941,6 +938,11 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
if (likely(index + nr_txbb <= ring->size))
tx_desc = ring->buf + (index << LOG_TXBB_SIZE);
else {
+ if (unlikely(nr_txbb > MLX4_MAX_DESC_TXBBS)) {
+ if (netif_msg_tx_err(priv))
+ en_warn(priv, "Oversized header or SG list\n");
+ goto tx_drop_count;
+ }
tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf;
bounce = true;
bf_ok = false;
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index d3fc86cd3c1d..3ae246391549 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -3043,7 +3043,7 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
*/
if (!IS_ENABLED(CONFIG_MLX4_EN) &&
dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
- devlink_port_type_eth_set(&info->devlink_port, NULL);
+ devlink_port_type_eth_set(&info->devlink_port);
else if (!IS_ENABLED(CONFIG_MLX4_INFINIBAND) &&
dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
devlink_port_type_ib_set(&info->devlink_port, NULL);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index e132ff4c82f2..3d4226ddba5e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -89,9 +89,19 @@
#define MLX4_EN_FILTER_HASH_SHIFT 4
#define MLX4_EN_FILTER_EXPIRY_QUOTA 60
-/* Typical TSO descriptor with 16 gather entries is 352 bytes... */
-#define MAX_DESC_SIZE 512
-#define MAX_DESC_TXBBS (MAX_DESC_SIZE / TXBB_SIZE)
+#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
+#define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
+
+/* Maximal size of the bounce buffer:
+ * 256 bytes for LSO headers.
+ * CTRL_SIZE for control desc.
+ * DS_SIZE if skb->head contains some payload.
+ * MAX_SKB_FRAGS frags.
+ */
+#define MLX4_TX_BOUNCE_BUFFER_SIZE \
+ ALIGN(256 + CTRL_SIZE + DS_SIZE + MAX_SKB_FRAGS * DS_SIZE, TXBB_SIZE)
+
+#define MLX4_MAX_DESC_TXBBS (MLX4_TX_BOUNCE_BUFFER_SIZE / TXBB_SIZE)
/*
* OS related constants and tunables
@@ -217,9 +227,7 @@ struct mlx4_en_tx_info {
#define MLX4_EN_BIT_DESC_OWN 0x80000000
-#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
#define MLX4_EN_MEMTYPE_PAD 0x100
-#define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
struct mlx4_en_tx_desc {
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-05 20:29:27 +0300